diff --git a/CMakeLists.txt b/CMakeLists.txt
index 33c0c70f2e1427cb5cb1ffbf73ea46c9b5027547..aecfefa7cdcfe54d74c5087821c601391c8c3958 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,7 +25,9 @@ if ( NOT glfw3_FOUND )
)
FetchContent_MakeAvailable( glfw3 )
endif ()
+
add_subdirectory(vendor/imgui/)
+add_subdirectory(vendor/flecs/core)
# engine
#set(CMAKE_CXX_CLANG_TIDY "clang-tidy;-checks=*")
diff --git a/fggl/ecs2/CMakeLists.txt b/fggl/ecs2/CMakeLists.txt
index eecf3a503b11699da4d2ca68dbcb43ce306c289f..1b492b620e69c4e4b10cd5764cf6d8f8ee5f8ca3 100644
--- a/fggl/ecs2/CMakeLists.txt
+++ b/fggl/ecs2/CMakeLists.txt
@@ -1,6 +1,4 @@
-add_subdirectory(flecs)
-
target_sources(fggl
PRIVATE
ecs.cpp
diff --git a/fggl/ecs2/flecs/BUILD b/vendor/flecs/core/BUILD
similarity index 100%
rename from fggl/ecs2/flecs/BUILD
rename to vendor/flecs/core/BUILD
diff --git a/fggl/ecs2/flecs/CHANGELOG.md b/vendor/flecs/core/CHANGELOG.md
similarity index 100%
rename from fggl/ecs2/flecs/CHANGELOG.md
rename to vendor/flecs/core/CHANGELOG.md
diff --git a/fggl/ecs2/flecs/CMakeLists.txt b/vendor/flecs/core/CMakeLists.txt
similarity index 100%
rename from fggl/ecs2/flecs/CMakeLists.txt
rename to vendor/flecs/core/CMakeLists.txt
diff --git a/fggl/ecs2/flecs/LICENSE b/vendor/flecs/core/LICENSE
similarity index 100%
rename from fggl/ecs2/flecs/LICENSE
rename to vendor/flecs/core/LICENSE
diff --git a/fggl/ecs2/flecs/README.md b/vendor/flecs/core/README.md
similarity index 100%
rename from fggl/ecs2/flecs/README.md
rename to vendor/flecs/core/README.md
diff --git a/fggl/ecs2/flecs/WORKSPACE b/vendor/flecs/core/WORKSPACE
similarity index 100%
rename from fggl/ecs2/flecs/WORKSPACE
rename to vendor/flecs/core/WORKSPACE
diff --git a/fggl/ecs2/flecs/cmake/target_default_compile_options.cmake b/vendor/flecs/core/cmake/target_default_compile_options.cmake
similarity index 100%
rename from fggl/ecs2/flecs/cmake/target_default_compile_options.cmake
rename to vendor/flecs/core/cmake/target_default_compile_options.cmake
diff --git a/fggl/ecs2/flecs/cmake/target_default_compile_warnings.cmake b/vendor/flecs/core/cmake/target_default_compile_warnings.cmake
similarity index 100%
rename from fggl/ecs2/flecs/cmake/target_default_compile_warnings.cmake
rename to vendor/flecs/core/cmake/target_default_compile_warnings.cmake
diff --git a/fggl/ecs2/flecs/codecov.yaml b/vendor/flecs/core/codecov.yaml
similarity index 100%
rename from fggl/ecs2/flecs/codecov.yaml
rename to vendor/flecs/core/codecov.yaml
diff --git a/fggl/ecs2/flecs/docs/DesignWithFlecs.md b/vendor/flecs/core/docs/DesignWithFlecs.md
similarity index 100%
rename from fggl/ecs2/flecs/docs/DesignWithFlecs.md
rename to vendor/flecs/core/docs/DesignWithFlecs.md
diff --git a/fggl/ecs2/flecs/docs/FAQ.md b/vendor/flecs/core/docs/FAQ.md
similarity index 100%
rename from fggl/ecs2/flecs/docs/FAQ.md
rename to vendor/flecs/core/docs/FAQ.md
diff --git a/fggl/ecs2/flecs/docs/Manual.md b/vendor/flecs/core/docs/Manual.md
similarity index 100%
rename from fggl/ecs2/flecs/docs/Manual.md
rename to vendor/flecs/core/docs/Manual.md
diff --git a/fggl/ecs2/flecs/docs/Queries.md b/vendor/flecs/core/docs/Queries.md
similarity index 100%
rename from fggl/ecs2/flecs/docs/Queries.md
rename to vendor/flecs/core/docs/Queries.md
diff --git a/fggl/ecs2/flecs/docs/Quickstart.md b/vendor/flecs/core/docs/Quickstart.md
similarity index 100%
rename from fggl/ecs2/flecs/docs/Quickstart.md
rename to vendor/flecs/core/docs/Quickstart.md
diff --git a/fggl/ecs2/flecs/docs/Relations.md b/vendor/flecs/core/docs/Relations.md
similarity index 100%
rename from fggl/ecs2/flecs/docs/Relations.md
rename to vendor/flecs/core/docs/Relations.md
diff --git a/fggl/ecs2/flecs/docs/flecs-add-component-flow.png b/vendor/flecs/core/docs/flecs-add-component-flow.png
similarity index 100%
rename from fggl/ecs2/flecs/docs/flecs-add-component-flow.png
rename to vendor/flecs/core/docs/flecs-add-component-flow.png
diff --git a/fggl/ecs2/flecs/docs/flecs-architecture-overview.png b/vendor/flecs/core/docs/flecs-architecture-overview.png
similarity index 100%
rename from fggl/ecs2/flecs/docs/flecs-architecture-overview.png
rename to vendor/flecs/core/docs/flecs-architecture-overview.png
diff --git a/fggl/ecs2/flecs/docs/flecs-quickstart-overview.png b/vendor/flecs/core/docs/flecs-quickstart-overview.png
similarity index 100%
rename from fggl/ecs2/flecs/docs/flecs-quickstart-overview.png
rename to vendor/flecs/core/docs/flecs-quickstart-overview.png
diff --git a/fggl/ecs2/flecs/docs/flecs-remove-component-flow.png b/vendor/flecs/core/docs/flecs-remove-component-flow.png
similarity index 100%
rename from fggl/ecs2/flecs/docs/flecs-remove-component-flow.png
rename to vendor/flecs/core/docs/flecs-remove-component-flow.png
diff --git a/fggl/ecs2/flecs/docs/flecs-staging-flow.png b/vendor/flecs/core/docs/flecs-staging-flow.png
similarity index 100%
rename from fggl/ecs2/flecs/docs/flecs-staging-flow.png
rename to vendor/flecs/core/docs/flecs-staging-flow.png
diff --git a/fggl/ecs2/flecs/examples/BUILD.bazel b/vendor/flecs/core/examples/BUILD.bazel
similarity index 100%
rename from fggl/ecs2/flecs/examples/BUILD.bazel
rename to vendor/flecs/core/examples/BUILD.bazel
diff --git a/fggl/ecs2/flecs/examples/CMakeLists.txt b/vendor/flecs/core/examples/CMakeLists.txt
similarity index 100%
rename from fggl/ecs2/flecs/examples/CMakeLists.txt
rename to vendor/flecs/core/examples/CMakeLists.txt
diff --git a/fggl/ecs2/flecs/examples/c/01_helloworld/include/helloworld.h b/vendor/flecs/core/examples/c/01_helloworld/include/helloworld.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/01_helloworld/include/helloworld.h
rename to vendor/flecs/core/examples/c/01_helloworld/include/helloworld.h
diff --git a/fggl/ecs2/flecs/examples/c/01_helloworld/include/helloworld/bake_config.h b/vendor/flecs/core/examples/c/01_helloworld/include/helloworld/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/01_helloworld/include/helloworld/bake_config.h
rename to vendor/flecs/core/examples/c/01_helloworld/include/helloworld/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/01_helloworld/project.json b/vendor/flecs/core/examples/c/01_helloworld/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/01_helloworld/project.json
rename to vendor/flecs/core/examples/c/01_helloworld/project.json
diff --git a/fggl/ecs2/flecs/examples/c/01_helloworld/src/main.c b/vendor/flecs/core/examples/c/01_helloworld/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/01_helloworld/src/main.c
rename to vendor/flecs/core/examples/c/01_helloworld/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/02_simple_system/include/simple_system.h b/vendor/flecs/core/examples/c/02_simple_system/include/simple_system.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/02_simple_system/include/simple_system.h
rename to vendor/flecs/core/examples/c/02_simple_system/include/simple_system.h
diff --git a/fggl/ecs2/flecs/examples/c/02_simple_system/include/simple_system/bake_config.h b/vendor/flecs/core/examples/c/02_simple_system/include/simple_system/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/02_simple_system/include/simple_system/bake_config.h
rename to vendor/flecs/core/examples/c/02_simple_system/include/simple_system/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/02_simple_system/project.json b/vendor/flecs/core/examples/c/02_simple_system/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/02_simple_system/project.json
rename to vendor/flecs/core/examples/c/02_simple_system/project.json
diff --git a/fggl/ecs2/flecs/examples/c/02_simple_system/src/main.c b/vendor/flecs/core/examples/c/02_simple_system/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/02_simple_system/src/main.c
rename to vendor/flecs/core/examples/c/02_simple_system/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/03_move_system/include/move_system.h b/vendor/flecs/core/examples/c/03_move_system/include/move_system.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/03_move_system/include/move_system.h
rename to vendor/flecs/core/examples/c/03_move_system/include/move_system.h
diff --git a/fggl/ecs2/flecs/examples/c/03_move_system/include/move_system/bake_config.h b/vendor/flecs/core/examples/c/03_move_system/include/move_system/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/03_move_system/include/move_system/bake_config.h
rename to vendor/flecs/core/examples/c/03_move_system/include/move_system/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/03_move_system/project.json b/vendor/flecs/core/examples/c/03_move_system/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/03_move_system/project.json
rename to vendor/flecs/core/examples/c/03_move_system/project.json
diff --git a/fggl/ecs2/flecs/examples/c/03_move_system/src/main.c b/vendor/flecs/core/examples/c/03_move_system/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/03_move_system/src/main.c
rename to vendor/flecs/core/examples/c/03_move_system/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/04_simple_module/include/simple_module.h b/vendor/flecs/core/examples/c/04_simple_module/include/simple_module.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/04_simple_module/include/simple_module.h
rename to vendor/flecs/core/examples/c/04_simple_module/include/simple_module.h
diff --git a/fggl/ecs2/flecs/examples/c/04_simple_module/include/simple_module/bake_config.h b/vendor/flecs/core/examples/c/04_simple_module/include/simple_module/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/04_simple_module/include/simple_module/bake_config.h
rename to vendor/flecs/core/examples/c/04_simple_module/include/simple_module/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/04_simple_module/project.json b/vendor/flecs/core/examples/c/04_simple_module/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/04_simple_module/project.json
rename to vendor/flecs/core/examples/c/04_simple_module/project.json
diff --git a/fggl/ecs2/flecs/examples/c/04_simple_module/src/main.c b/vendor/flecs/core/examples/c/04_simple_module/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/04_simple_module/src/main.c
rename to vendor/flecs/core/examples/c/04_simple_module/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/04_simple_module/src/simple_module.c b/vendor/flecs/core/examples/c/04_simple_module/src/simple_module.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/04_simple_module/src/simple_module.c
rename to vendor/flecs/core/examples/c/04_simple_module/src/simple_module.c
diff --git a/fggl/ecs2/flecs/examples/c/05_simple_triggers/include/simple_triggers.h b/vendor/flecs/core/examples/c/05_simple_triggers/include/simple_triggers.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/05_simple_triggers/include/simple_triggers.h
rename to vendor/flecs/core/examples/c/05_simple_triggers/include/simple_triggers.h
diff --git a/fggl/ecs2/flecs/examples/c/05_simple_triggers/include/simple_triggers/bake_config.h b/vendor/flecs/core/examples/c/05_simple_triggers/include/simple_triggers/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/05_simple_triggers/include/simple_triggers/bake_config.h
rename to vendor/flecs/core/examples/c/05_simple_triggers/include/simple_triggers/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/05_simple_triggers/project.json b/vendor/flecs/core/examples/c/05_simple_triggers/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/05_simple_triggers/project.json
rename to vendor/flecs/core/examples/c/05_simple_triggers/project.json
diff --git a/fggl/ecs2/flecs/examples/c/05_simple_triggers/src/main.c b/vendor/flecs/core/examples/c/05_simple_triggers/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/05_simple_triggers/src/main.c
rename to vendor/flecs/core/examples/c/05_simple_triggers/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/06_set_system/include/set_system.h b/vendor/flecs/core/examples/c/06_set_system/include/set_system.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/06_set_system/include/set_system.h
rename to vendor/flecs/core/examples/c/06_set_system/include/set_system.h
diff --git a/fggl/ecs2/flecs/examples/c/06_set_system/include/set_system/bake_config.h b/vendor/flecs/core/examples/c/06_set_system/include/set_system/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/06_set_system/include/set_system/bake_config.h
rename to vendor/flecs/core/examples/c/06_set_system/include/set_system/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/06_set_system/project.json b/vendor/flecs/core/examples/c/06_set_system/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/06_set_system/project.json
rename to vendor/flecs/core/examples/c/06_set_system/project.json
diff --git a/fggl/ecs2/flecs/examples/c/06_set_system/src/main.c b/vendor/flecs/core/examples/c/06_set_system/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/06_set_system/src/main.c
rename to vendor/flecs/core/examples/c/06_set_system/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/07_no_macros/include/no_macros.h b/vendor/flecs/core/examples/c/07_no_macros/include/no_macros.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/07_no_macros/include/no_macros.h
rename to vendor/flecs/core/examples/c/07_no_macros/include/no_macros.h
diff --git a/fggl/ecs2/flecs/examples/c/07_no_macros/include/no_macros/bake_config.h b/vendor/flecs/core/examples/c/07_no_macros/include/no_macros/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/07_no_macros/include/no_macros/bake_config.h
rename to vendor/flecs/core/examples/c/07_no_macros/include/no_macros/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/07_no_macros/project.json b/vendor/flecs/core/examples/c/07_no_macros/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/07_no_macros/project.json
rename to vendor/flecs/core/examples/c/07_no_macros/project.json
diff --git a/fggl/ecs2/flecs/examples/c/07_no_macros/src/main.c b/vendor/flecs/core/examples/c/07_no_macros/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/07_no_macros/src/main.c
rename to vendor/flecs/core/examples/c/07_no_macros/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/08_hierarchy/include/hierarchy.h b/vendor/flecs/core/examples/c/08_hierarchy/include/hierarchy.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/08_hierarchy/include/hierarchy.h
rename to vendor/flecs/core/examples/c/08_hierarchy/include/hierarchy.h
diff --git a/fggl/ecs2/flecs/examples/c/08_hierarchy/include/hierarchy/bake_config.h b/vendor/flecs/core/examples/c/08_hierarchy/include/hierarchy/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/08_hierarchy/include/hierarchy/bake_config.h
rename to vendor/flecs/core/examples/c/08_hierarchy/include/hierarchy/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/08_hierarchy/project.json b/vendor/flecs/core/examples/c/08_hierarchy/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/08_hierarchy/project.json
rename to vendor/flecs/core/examples/c/08_hierarchy/project.json
diff --git a/fggl/ecs2/flecs/examples/c/08_hierarchy/src/main.c b/vendor/flecs/core/examples/c/08_hierarchy/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/08_hierarchy/src/main.c
rename to vendor/flecs/core/examples/c/08_hierarchy/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/09_hierarchy_api/include/hierarchy_api.h b/vendor/flecs/core/examples/c/09_hierarchy_api/include/hierarchy_api.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/09_hierarchy_api/include/hierarchy_api.h
rename to vendor/flecs/core/examples/c/09_hierarchy_api/include/hierarchy_api.h
diff --git a/fggl/ecs2/flecs/examples/c/09_hierarchy_api/include/hierarchy_api/bake_config.h b/vendor/flecs/core/examples/c/09_hierarchy_api/include/hierarchy_api/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/09_hierarchy_api/include/hierarchy_api/bake_config.h
rename to vendor/flecs/core/examples/c/09_hierarchy_api/include/hierarchy_api/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/09_hierarchy_api/project.json b/vendor/flecs/core/examples/c/09_hierarchy_api/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/09_hierarchy_api/project.json
rename to vendor/flecs/core/examples/c/09_hierarchy_api/project.json
diff --git a/fggl/ecs2/flecs/examples/c/09_hierarchy_api/src/main.c b/vendor/flecs/core/examples/c/09_hierarchy_api/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/09_hierarchy_api/src/main.c
rename to vendor/flecs/core/examples/c/09_hierarchy_api/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/10_inheritance/include/inheritance.h b/vendor/flecs/core/examples/c/10_inheritance/include/inheritance.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/10_inheritance/include/inheritance.h
rename to vendor/flecs/core/examples/c/10_inheritance/include/inheritance.h
diff --git a/fggl/ecs2/flecs/examples/c/10_inheritance/include/inheritance/bake_config.h b/vendor/flecs/core/examples/c/10_inheritance/include/inheritance/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/10_inheritance/include/inheritance/bake_config.h
rename to vendor/flecs/core/examples/c/10_inheritance/include/inheritance/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/10_inheritance/project.json b/vendor/flecs/core/examples/c/10_inheritance/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/10_inheritance/project.json
rename to vendor/flecs/core/examples/c/10_inheritance/project.json
diff --git a/fggl/ecs2/flecs/examples/c/10_inheritance/src/main.c b/vendor/flecs/core/examples/c/10_inheritance/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/10_inheritance/src/main.c
rename to vendor/flecs/core/examples/c/10_inheritance/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/11_inheritance_api/include/inheritance_api.h b/vendor/flecs/core/examples/c/11_inheritance_api/include/inheritance_api.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/11_inheritance_api/include/inheritance_api.h
rename to vendor/flecs/core/examples/c/11_inheritance_api/include/inheritance_api.h
diff --git a/fggl/ecs2/flecs/examples/c/11_inheritance_api/include/inheritance_api/bake_config.h b/vendor/flecs/core/examples/c/11_inheritance_api/include/inheritance_api/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/11_inheritance_api/include/inheritance_api/bake_config.h
rename to vendor/flecs/core/examples/c/11_inheritance_api/include/inheritance_api/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/11_inheritance_api/project.json b/vendor/flecs/core/examples/c/11_inheritance_api/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/11_inheritance_api/project.json
rename to vendor/flecs/core/examples/c/11_inheritance_api/project.json
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diff --git a/fggl/ecs2/flecs/examples/c/19_auto_override_nested_prefab/include/auto_override_nested_prefab.h b/vendor/flecs/core/examples/c/19_auto_override_nested_prefab/include/auto_override_nested_prefab.h
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diff --git a/fggl/ecs2/flecs/examples/c/19_auto_override_nested_prefab/include/auto_override_nested_prefab/bake_config.h b/vendor/flecs/core/examples/c/19_auto_override_nested_prefab/include/auto_override_nested_prefab/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/c/20_nested_variant/include/nested_variant.h b/vendor/flecs/core/examples/c/20_nested_variant/include/nested_variant.h
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diff --git a/fggl/ecs2/flecs/examples/c/21_system_features/include/system_features.h b/vendor/flecs/core/examples/c/21_system_features/include/system_features.h
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diff --git a/fggl/ecs2/flecs/examples/c/22_optional/include/optional.h b/vendor/flecs/core/examples/c/22_optional/include/optional.h
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diff --git a/fggl/ecs2/flecs/examples/c/23_get_children/include/get_children.h b/vendor/flecs/core/examples/c/23_get_children/include/get_children.h
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diff --git a/fggl/ecs2/flecs/examples/c/23_get_children/include/get_children/bake_config.h b/vendor/flecs/core/examples/c/23_get_children/include/get_children/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/c/24_on_demand_system/include/on_demand_system.h b/vendor/flecs/core/examples/c/24_on_demand_system/include/on_demand_system.h
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diff --git a/fggl/ecs2/flecs/examples/c/24_on_demand_system/include/on_demand_system/bake_config.h b/vendor/flecs/core/examples/c/24_on_demand_system/include/on_demand_system/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/c/25_snapshot/include/snapshot.h b/vendor/flecs/core/examples/c/25_snapshot/include/snapshot.h
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diff --git a/fggl/ecs2/flecs/examples/c/27_filter_iter/include/filter_iter.h b/vendor/flecs/core/examples/c/27_filter_iter/include/filter_iter.h
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diff --git a/fggl/ecs2/flecs/examples/c/32_bulk_add_remove/include/bulk_add_remove.h b/vendor/flecs/core/examples/c/32_bulk_add_remove/include/bulk_add_remove.h
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diff --git a/fggl/ecs2/flecs/examples/c/32_bulk_add_remove/include/bulk_add_remove/bake_config.h b/vendor/flecs/core/examples/c/32_bulk_add_remove/include/bulk_add_remove/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/c/34_persistent_query/include/persistent_query.h b/vendor/flecs/core/examples/c/34_persistent_query/include/persistent_query.h
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diff --git a/fggl/ecs2/flecs/examples/c/35_empty_system_signature/include/empty_system_signature.h b/vendor/flecs/core/examples/c/35_empty_system_signature/include/empty_system_signature.h
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diff --git a/fggl/ecs2/flecs/examples/c/37_delta_time/include/delta_time.h b/vendor/flecs/core/examples/c/37_delta_time/include/delta_time.h
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diff --git a/fggl/ecs2/flecs/examples/c/38_delta_system_time/include/delta_system_time.h b/vendor/flecs/core/examples/c/38_delta_system_time/include/delta_system_time.h
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diff --git a/fggl/ecs2/flecs/examples/c/38_delta_system_time/include/delta_system_time/bake_config.h b/vendor/flecs/core/examples/c/38_delta_system_time/include/delta_system_time/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/c/39_get_mutable/include/get_mutable.h b/vendor/flecs/core/examples/c/39_get_mutable/include/get_mutable.h
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diff --git a/fggl/ecs2/flecs/examples/c/40_task/include/task.h b/vendor/flecs/core/examples/c/40_task/include/task.h
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diff --git a/fggl/ecs2/flecs/examples/c/48_is_alive/include/is_alive.h b/vendor/flecs/core/examples/c/48_is_alive/include/is_alive.h
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rename to vendor/flecs/core/examples/c/48_is_alive/include/is_alive.h
diff --git a/fggl/ecs2/flecs/examples/c/48_is_alive/include/is_alive/bake_config.h b/vendor/flecs/core/examples/c/48_is_alive/include/is_alive/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/48_is_alive/include/is_alive/bake_config.h
rename to vendor/flecs/core/examples/c/48_is_alive/include/is_alive/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/48_is_alive/project.json b/vendor/flecs/core/examples/c/48_is_alive/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/48_is_alive/project.json
rename to vendor/flecs/core/examples/c/48_is_alive/project.json
diff --git a/fggl/ecs2/flecs/examples/c/48_is_alive/src/main.c b/vendor/flecs/core/examples/c/48_is_alive/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/48_is_alive/src/main.c
rename to vendor/flecs/core/examples/c/48_is_alive/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/49_singleton/include/singleton.h b/vendor/flecs/core/examples/c/49_singleton/include/singleton.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/49_singleton/include/singleton.h
rename to vendor/flecs/core/examples/c/49_singleton/include/singleton.h
diff --git a/fggl/ecs2/flecs/examples/c/49_singleton/include/singleton/bake_config.h b/vendor/flecs/core/examples/c/49_singleton/include/singleton/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/49_singleton/include/singleton/bake_config.h
rename to vendor/flecs/core/examples/c/49_singleton/include/singleton/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/49_singleton/project.json b/vendor/flecs/core/examples/c/49_singleton/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/49_singleton/project.json
rename to vendor/flecs/core/examples/c/49_singleton/project.json
diff --git a/fggl/ecs2/flecs/examples/c/49_singleton/src/main.c b/vendor/flecs/core/examples/c/49_singleton/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/49_singleton/src/main.c
rename to vendor/flecs/core/examples/c/49_singleton/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/50_disabled_component/include/disable_component.h b/vendor/flecs/core/examples/c/50_disabled_component/include/disable_component.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/50_disabled_component/include/disable_component.h
rename to vendor/flecs/core/examples/c/50_disabled_component/include/disable_component.h
diff --git a/fggl/ecs2/flecs/examples/c/50_disabled_component/include/disable_component/bake_config.h b/vendor/flecs/core/examples/c/50_disabled_component/include/disable_component/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/50_disabled_component/include/disable_component/bake_config.h
rename to vendor/flecs/core/examples/c/50_disabled_component/include/disable_component/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/50_disabled_component/project.json b/vendor/flecs/core/examples/c/50_disabled_component/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/50_disabled_component/project.json
rename to vendor/flecs/core/examples/c/50_disabled_component/project.json
diff --git a/fggl/ecs2/flecs/examples/c/50_disabled_component/src/main.c b/vendor/flecs/core/examples/c/50_disabled_component/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/50_disabled_component/src/main.c
rename to vendor/flecs/core/examples/c/50_disabled_component/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/51_direct_access/include/direct_access.h b/vendor/flecs/core/examples/c/51_direct_access/include/direct_access.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/51_direct_access/include/direct_access.h
rename to vendor/flecs/core/examples/c/51_direct_access/include/direct_access.h
diff --git a/fggl/ecs2/flecs/examples/c/51_direct_access/include/direct_access/bake_config.h b/vendor/flecs/core/examples/c/51_direct_access/include/direct_access/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/51_direct_access/include/direct_access/bake_config.h
rename to vendor/flecs/core/examples/c/51_direct_access/include/direct_access/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/51_direct_access/project.json b/vendor/flecs/core/examples/c/51_direct_access/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/51_direct_access/project.json
rename to vendor/flecs/core/examples/c/51_direct_access/project.json
diff --git a/fggl/ecs2/flecs/examples/c/51_direct_access/src/main.c b/vendor/flecs/core/examples/c/51_direct_access/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/51_direct_access/src/main.c
rename to vendor/flecs/core/examples/c/51_direct_access/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/52_merge_world/include/merge_world.h b/vendor/flecs/core/examples/c/52_merge_world/include/merge_world.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/52_merge_world/include/merge_world.h
rename to vendor/flecs/core/examples/c/52_merge_world/include/merge_world.h
diff --git a/fggl/ecs2/flecs/examples/c/52_merge_world/include/merge_world/bake_config.h b/vendor/flecs/core/examples/c/52_merge_world/include/merge_world/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/52_merge_world/include/merge_world/bake_config.h
rename to vendor/flecs/core/examples/c/52_merge_world/include/merge_world/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/52_merge_world/project.json b/vendor/flecs/core/examples/c/52_merge_world/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/52_merge_world/project.json
rename to vendor/flecs/core/examples/c/52_merge_world/project.json
diff --git a/fggl/ecs2/flecs/examples/c/52_merge_world/src/main.c b/vendor/flecs/core/examples/c/52_merge_world/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/52_merge_world/src/main.c
rename to vendor/flecs/core/examples/c/52_merge_world/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/53_dynamic_buffer/include/dynamic_buffer.h b/vendor/flecs/core/examples/c/53_dynamic_buffer/include/dynamic_buffer.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/53_dynamic_buffer/include/dynamic_buffer.h
rename to vendor/flecs/core/examples/c/53_dynamic_buffer/include/dynamic_buffer.h
diff --git a/fggl/ecs2/flecs/examples/c/53_dynamic_buffer/include/dynamic_buffer/bake_config.h b/vendor/flecs/core/examples/c/53_dynamic_buffer/include/dynamic_buffer/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/53_dynamic_buffer/include/dynamic_buffer/bake_config.h
rename to vendor/flecs/core/examples/c/53_dynamic_buffer/include/dynamic_buffer/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/53_dynamic_buffer/project.json b/vendor/flecs/core/examples/c/53_dynamic_buffer/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/53_dynamic_buffer/project.json
rename to vendor/flecs/core/examples/c/53_dynamic_buffer/project.json
diff --git a/fggl/ecs2/flecs/examples/c/53_dynamic_buffer/src/main.c b/vendor/flecs/core/examples/c/53_dynamic_buffer/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/53_dynamic_buffer/src/main.c
rename to vendor/flecs/core/examples/c/53_dynamic_buffer/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/54_simple_threads/include/simple_threads.h b/vendor/flecs/core/examples/c/54_simple_threads/include/simple_threads.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/54_simple_threads/include/simple_threads.h
rename to vendor/flecs/core/examples/c/54_simple_threads/include/simple_threads.h
diff --git a/fggl/ecs2/flecs/examples/c/54_simple_threads/include/simple_threads/bake_config.h b/vendor/flecs/core/examples/c/54_simple_threads/include/simple_threads/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/54_simple_threads/include/simple_threads/bake_config.h
rename to vendor/flecs/core/examples/c/54_simple_threads/include/simple_threads/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/54_simple_threads/project.json b/vendor/flecs/core/examples/c/54_simple_threads/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/54_simple_threads/project.json
rename to vendor/flecs/core/examples/c/54_simple_threads/project.json
diff --git a/fggl/ecs2/flecs/examples/c/54_simple_threads/src/main.c b/vendor/flecs/core/examples/c/54_simple_threads/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/54_simple_threads/src/main.c
rename to vendor/flecs/core/examples/c/54_simple_threads/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/55_custom_threads/include/custom_threads.h b/vendor/flecs/core/examples/c/55_custom_threads/include/custom_threads.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/55_custom_threads/include/custom_threads.h
rename to vendor/flecs/core/examples/c/55_custom_threads/include/custom_threads.h
diff --git a/fggl/ecs2/flecs/examples/c/55_custom_threads/include/custom_threads/bake_config.h b/vendor/flecs/core/examples/c/55_custom_threads/include/custom_threads/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/55_custom_threads/include/custom_threads/bake_config.h
rename to vendor/flecs/core/examples/c/55_custom_threads/include/custom_threads/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/55_custom_threads/project.json b/vendor/flecs/core/examples/c/55_custom_threads/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/55_custom_threads/project.json
rename to vendor/flecs/core/examples/c/55_custom_threads/project.json
diff --git a/fggl/ecs2/flecs/examples/c/55_custom_threads/src/main.c b/vendor/flecs/core/examples/c/55_custom_threads/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/55_custom_threads/src/main.c
rename to vendor/flecs/core/examples/c/55_custom_threads/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/56_custom_merge/include/custom_merge.h b/vendor/flecs/core/examples/c/56_custom_merge/include/custom_merge.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/56_custom_merge/include/custom_merge.h
rename to vendor/flecs/core/examples/c/56_custom_merge/include/custom_merge.h
diff --git a/fggl/ecs2/flecs/examples/c/56_custom_merge/include/custom_merge/bake_config.h b/vendor/flecs/core/examples/c/56_custom_merge/include/custom_merge/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/56_custom_merge/include/custom_merge/bake_config.h
rename to vendor/flecs/core/examples/c/56_custom_merge/include/custom_merge/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/56_custom_merge/project.json b/vendor/flecs/core/examples/c/56_custom_merge/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/56_custom_merge/project.json
rename to vendor/flecs/core/examples/c/56_custom_merge/project.json
diff --git a/fggl/ecs2/flecs/examples/c/56_custom_merge/src/main.c b/vendor/flecs/core/examples/c/56_custom_merge/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/56_custom_merge/src/main.c
rename to vendor/flecs/core/examples/c/56_custom_merge/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/60_observer/include/observer.h b/vendor/flecs/core/examples/c/60_observer/include/observer.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/60_observer/include/observer.h
rename to vendor/flecs/core/examples/c/60_observer/include/observer.h
diff --git a/fggl/ecs2/flecs/examples/c/60_observer/include/observer/bake_config.h b/vendor/flecs/core/examples/c/60_observer/include/observer/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/60_observer/include/observer/bake_config.h
rename to vendor/flecs/core/examples/c/60_observer/include/observer/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/60_observer/project.json b/vendor/flecs/core/examples/c/60_observer/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/60_observer/project.json
rename to vendor/flecs/core/examples/c/60_observer/project.json
diff --git a/fggl/ecs2/flecs/examples/c/60_observer/src/main.c b/vendor/flecs/core/examples/c/60_observer/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/60_observer/src/main.c
rename to vendor/flecs/core/examples/c/60_observer/src/main.c
diff --git a/fggl/ecs2/flecs/examples/c/61_custom_pipeline/include/custom_pipeline.h b/vendor/flecs/core/examples/c/61_custom_pipeline/include/custom_pipeline.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/61_custom_pipeline/include/custom_pipeline.h
rename to vendor/flecs/core/examples/c/61_custom_pipeline/include/custom_pipeline.h
diff --git a/fggl/ecs2/flecs/examples/c/61_custom_pipeline/include/custom_pipeline/bake_config.h b/vendor/flecs/core/examples/c/61_custom_pipeline/include/custom_pipeline/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/61_custom_pipeline/include/custom_pipeline/bake_config.h
rename to vendor/flecs/core/examples/c/61_custom_pipeline/include/custom_pipeline/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/c/61_custom_pipeline/project.json b/vendor/flecs/core/examples/c/61_custom_pipeline/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/61_custom_pipeline/project.json
rename to vendor/flecs/core/examples/c/61_custom_pipeline/project.json
diff --git a/fggl/ecs2/flecs/examples/c/61_custom_pipeline/src/main.c b/vendor/flecs/core/examples/c/61_custom_pipeline/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/examples/c/61_custom_pipeline/src/main.c
rename to vendor/flecs/core/examples/c/61_custom_pipeline/src/main.c
diff --git a/fggl/ecs2/flecs/examples/cpp/01_helloworld/include/helloworld.h b/vendor/flecs/core/examples/cpp/01_helloworld/include/helloworld.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/01_helloworld/include/helloworld.h
rename to vendor/flecs/core/examples/cpp/01_helloworld/include/helloworld.h
diff --git a/fggl/ecs2/flecs/examples/cpp/01_helloworld/include/helloworld/bake_config.h b/vendor/flecs/core/examples/cpp/01_helloworld/include/helloworld/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/01_helloworld/include/helloworld/bake_config.h
rename to vendor/flecs/core/examples/cpp/01_helloworld/include/helloworld/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/01_helloworld/project.json b/vendor/flecs/core/examples/cpp/01_helloworld/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/01_helloworld/project.json
rename to vendor/flecs/core/examples/cpp/01_helloworld/project.json
diff --git a/fggl/ecs2/flecs/examples/cpp/01_helloworld/src/main.cpp b/vendor/flecs/core/examples/cpp/01_helloworld/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/01_helloworld/src/main.cpp
rename to vendor/flecs/core/examples/cpp/01_helloworld/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/02_simple_system/include/simple_system.h b/vendor/flecs/core/examples/cpp/02_simple_system/include/simple_system.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/02_simple_system/include/simple_system.h
rename to vendor/flecs/core/examples/cpp/02_simple_system/include/simple_system.h
diff --git a/fggl/ecs2/flecs/examples/cpp/02_simple_system/include/simple_system/bake_config.h b/vendor/flecs/core/examples/cpp/02_simple_system/include/simple_system/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/02_simple_system/include/simple_system/bake_config.h
rename to vendor/flecs/core/examples/cpp/02_simple_system/include/simple_system/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/02_simple_system/project.json b/vendor/flecs/core/examples/cpp/02_simple_system/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/02_simple_system/project.json
rename to vendor/flecs/core/examples/cpp/02_simple_system/project.json
diff --git a/fggl/ecs2/flecs/examples/cpp/02_simple_system/src/main.cpp b/vendor/flecs/core/examples/cpp/02_simple_system/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/02_simple_system/src/main.cpp
rename to vendor/flecs/core/examples/cpp/02_simple_system/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/03_move_system/include/move_system.h b/vendor/flecs/core/examples/cpp/03_move_system/include/move_system.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/03_move_system/include/move_system.h
rename to vendor/flecs/core/examples/cpp/03_move_system/include/move_system.h
diff --git a/fggl/ecs2/flecs/examples/cpp/03_move_system/include/move_system/bake_config.h b/vendor/flecs/core/examples/cpp/03_move_system/include/move_system/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/03_move_system/include/move_system/bake_config.h
rename to vendor/flecs/core/examples/cpp/03_move_system/include/move_system/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/03_move_system/project.json b/vendor/flecs/core/examples/cpp/03_move_system/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/03_move_system/project.json
rename to vendor/flecs/core/examples/cpp/03_move_system/project.json
diff --git a/fggl/ecs2/flecs/examples/cpp/03_move_system/src/main.cpp b/vendor/flecs/core/examples/cpp/03_move_system/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/03_move_system/src/main.cpp
rename to vendor/flecs/core/examples/cpp/03_move_system/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/04_simple_module/include/simple_module.h b/vendor/flecs/core/examples/cpp/04_simple_module/include/simple_module.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/04_simple_module/include/simple_module.h
rename to vendor/flecs/core/examples/cpp/04_simple_module/include/simple_module.h
diff --git a/fggl/ecs2/flecs/examples/cpp/04_simple_module/include/simple_module/bake_config.h b/vendor/flecs/core/examples/cpp/04_simple_module/include/simple_module/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/04_simple_module/include/simple_module/bake_config.h
rename to vendor/flecs/core/examples/cpp/04_simple_module/include/simple_module/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/04_simple_module/project.json b/vendor/flecs/core/examples/cpp/04_simple_module/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/04_simple_module/project.json
rename to vendor/flecs/core/examples/cpp/04_simple_module/project.json
diff --git a/fggl/ecs2/flecs/examples/cpp/04_simple_module/src/main.cpp b/vendor/flecs/core/examples/cpp/04_simple_module/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/04_simple_module/src/main.cpp
rename to vendor/flecs/core/examples/cpp/04_simple_module/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/05_add_remove_system/include/add_remove_system.h b/vendor/flecs/core/examples/cpp/05_add_remove_system/include/add_remove_system.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/05_add_remove_system/include/add_remove_system.h
rename to vendor/flecs/core/examples/cpp/05_add_remove_system/include/add_remove_system.h
diff --git a/fggl/ecs2/flecs/examples/cpp/05_add_remove_system/include/add_remove_system/bake_config.h b/vendor/flecs/core/examples/cpp/05_add_remove_system/include/add_remove_system/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/05_add_remove_system/include/add_remove_system/bake_config.h
rename to vendor/flecs/core/examples/cpp/05_add_remove_system/include/add_remove_system/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/05_add_remove_system/project.json b/vendor/flecs/core/examples/cpp/05_add_remove_system/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/05_add_remove_system/project.json
rename to vendor/flecs/core/examples/cpp/05_add_remove_system/project.json
diff --git a/fggl/ecs2/flecs/examples/cpp/05_add_remove_system/src/main.cpp b/vendor/flecs/core/examples/cpp/05_add_remove_system/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/05_add_remove_system/src/main.cpp
rename to vendor/flecs/core/examples/cpp/05_add_remove_system/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/06_set_system/include/set_system.h b/vendor/flecs/core/examples/cpp/06_set_system/include/set_system.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/06_set_system/include/set_system.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/06_set_system/include/set_system/bake_config.h b/vendor/flecs/core/examples/cpp/06_set_system/include/set_system/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/06_set_system/include/set_system/bake_config.h
rename to vendor/flecs/core/examples/cpp/06_set_system/include/set_system/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/06_set_system/project.json b/vendor/flecs/core/examples/cpp/06_set_system/project.json
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rename from fggl/ecs2/flecs/examples/cpp/06_set_system/project.json
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similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/06_set_system/src/main.cpp
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diff --git a/fggl/ecs2/flecs/examples/cpp/08_hierarchy/include/hierarchy.h b/vendor/flecs/core/examples/cpp/08_hierarchy/include/hierarchy.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/08_hierarchy/include/hierarchy.h
rename to vendor/flecs/core/examples/cpp/08_hierarchy/include/hierarchy.h
diff --git a/fggl/ecs2/flecs/examples/cpp/08_hierarchy/include/hierarchy/bake_config.h b/vendor/flecs/core/examples/cpp/08_hierarchy/include/hierarchy/bake_config.h
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rename from fggl/ecs2/flecs/examples/cpp/08_hierarchy/include/hierarchy/bake_config.h
rename to vendor/flecs/core/examples/cpp/08_hierarchy/include/hierarchy/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/08_hierarchy/project.json b/vendor/flecs/core/examples/cpp/08_hierarchy/project.json
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rename from fggl/ecs2/flecs/examples/cpp/08_hierarchy/project.json
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similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/08_hierarchy/src/main.cpp
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diff --git a/fggl/ecs2/flecs/examples/cpp/10_inheritance/include/inheritance.h b/vendor/flecs/core/examples/cpp/10_inheritance/include/inheritance.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/10_inheritance/include/inheritance/bake_config.h b/vendor/flecs/core/examples/cpp/10_inheritance/include/inheritance/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/10_inheritance/include/inheritance/bake_config.h
rename to vendor/flecs/core/examples/cpp/10_inheritance/include/inheritance/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/10_inheritance/project.json b/vendor/flecs/core/examples/cpp/10_inheritance/project.json
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rename from fggl/ecs2/flecs/examples/cpp/10_inheritance/project.json
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similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/10_inheritance/src/main.cpp
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diff --git a/fggl/ecs2/flecs/examples/cpp/12_override/include/override.h b/vendor/flecs/core/examples/cpp/12_override/include/override.h
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rename from fggl/ecs2/flecs/examples/cpp/12_override/include/override.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/12_override/include/override/bake_config.h b/vendor/flecs/core/examples/cpp/12_override/include/override/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/12_override/include/override/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/12_override/project.json b/vendor/flecs/core/examples/cpp/12_override/project.json
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rename from fggl/ecs2/flecs/examples/cpp/12_override/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/12_override/src/main.cpp b/vendor/flecs/core/examples/cpp/12_override/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/12_override/src/main.cpp
rename to vendor/flecs/core/examples/cpp/12_override/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/13_override_init/include/override_init.h b/vendor/flecs/core/examples/cpp/13_override_init/include/override_init.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/13_override_init/include/override_init.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/13_override_init/include/override_init/bake_config.h b/vendor/flecs/core/examples/cpp/13_override_init/include/override_init/bake_config.h
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rename from fggl/ecs2/flecs/examples/cpp/13_override_init/include/override_init/bake_config.h
rename to vendor/flecs/core/examples/cpp/13_override_init/include/override_init/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/13_override_init/project.json b/vendor/flecs/core/examples/cpp/13_override_init/project.json
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rename from fggl/ecs2/flecs/examples/cpp/13_override_init/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/13_override_init/src/main.cpp b/vendor/flecs/core/examples/cpp/13_override_init/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/13_override_init/src/main.cpp
rename to vendor/flecs/core/examples/cpp/13_override_init/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/14_add_type/include/add_type.h b/vendor/flecs/core/examples/cpp/14_add_type/include/add_type.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/14_add_type/include/add_type.h
rename to vendor/flecs/core/examples/cpp/14_add_type/include/add_type.h
diff --git a/fggl/ecs2/flecs/examples/cpp/14_add_type/include/add_type/bake_config.h b/vendor/flecs/core/examples/cpp/14_add_type/include/add_type/bake_config.h
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rename from fggl/ecs2/flecs/examples/cpp/14_add_type/include/add_type/bake_config.h
rename to vendor/flecs/core/examples/cpp/14_add_type/include/add_type/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/14_add_type/project.json b/vendor/flecs/core/examples/cpp/14_add_type/project.json
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rename from fggl/ecs2/flecs/examples/cpp/14_add_type/project.json
rename to vendor/flecs/core/examples/cpp/14_add_type/project.json
diff --git a/fggl/ecs2/flecs/examples/cpp/14_add_type/src/main.cpp b/vendor/flecs/core/examples/cpp/14_add_type/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/14_add_type/src/main.cpp
rename to vendor/flecs/core/examples/cpp/14_add_type/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/15_auto_override/include/auto_override.h b/vendor/flecs/core/examples/cpp/15_auto_override/include/auto_override.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/15_auto_override/include/auto_override.h
rename to vendor/flecs/core/examples/cpp/15_auto_override/include/auto_override.h
diff --git a/fggl/ecs2/flecs/examples/cpp/15_auto_override/include/auto_override/bake_config.h b/vendor/flecs/core/examples/cpp/15_auto_override/include/auto_override/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/15_auto_override/include/auto_override/bake_config.h
rename to vendor/flecs/core/examples/cpp/15_auto_override/include/auto_override/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/15_auto_override/project.json b/vendor/flecs/core/examples/cpp/15_auto_override/project.json
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rename from fggl/ecs2/flecs/examples/cpp/15_auto_override/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/15_auto_override/src/main.cpp b/vendor/flecs/core/examples/cpp/15_auto_override/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/15_auto_override/src/main.cpp
rename to vendor/flecs/core/examples/cpp/15_auto_override/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/16_prefab/include/prefab.h b/vendor/flecs/core/examples/cpp/16_prefab/include/prefab.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/16_prefab/include/prefab.h
rename to vendor/flecs/core/examples/cpp/16_prefab/include/prefab.h
diff --git a/fggl/ecs2/flecs/examples/cpp/16_prefab/include/prefab/bake_config.h b/vendor/flecs/core/examples/cpp/16_prefab/include/prefab/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/16_prefab/include/prefab/bake_config.h
rename to vendor/flecs/core/examples/cpp/16_prefab/include/prefab/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/16_prefab/project.json b/vendor/flecs/core/examples/cpp/16_prefab/project.json
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rename from fggl/ecs2/flecs/examples/cpp/16_prefab/project.json
rename to vendor/flecs/core/examples/cpp/16_prefab/project.json
diff --git a/fggl/ecs2/flecs/examples/cpp/16_prefab/src/main.cpp b/vendor/flecs/core/examples/cpp/16_prefab/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/16_prefab/src/main.cpp
rename to vendor/flecs/core/examples/cpp/16_prefab/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/17_prefab_variant/include/prefab_variant.h b/vendor/flecs/core/examples/cpp/17_prefab_variant/include/prefab_variant.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/17_prefab_variant/include/prefab_variant.h
rename to vendor/flecs/core/examples/cpp/17_prefab_variant/include/prefab_variant.h
diff --git a/fggl/ecs2/flecs/examples/cpp/17_prefab_variant/include/prefab_variant/bake_config.h b/vendor/flecs/core/examples/cpp/17_prefab_variant/include/prefab_variant/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/17_prefab_variant/include/prefab_variant/bake_config.h
rename to vendor/flecs/core/examples/cpp/17_prefab_variant/include/prefab_variant/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/17_prefab_variant/project.json b/vendor/flecs/core/examples/cpp/17_prefab_variant/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/17_prefab_variant/project.json
rename to vendor/flecs/core/examples/cpp/17_prefab_variant/project.json
diff --git a/fggl/ecs2/flecs/examples/cpp/17_prefab_variant/src/main.cpp b/vendor/flecs/core/examples/cpp/17_prefab_variant/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/17_prefab_variant/src/main.cpp
rename to vendor/flecs/core/examples/cpp/17_prefab_variant/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/18_nested_prefab/include/nested_prefab.h b/vendor/flecs/core/examples/cpp/18_nested_prefab/include/nested_prefab.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/18_nested_prefab/include/nested_prefab.h
rename to vendor/flecs/core/examples/cpp/18_nested_prefab/include/nested_prefab.h
diff --git a/fggl/ecs2/flecs/examples/cpp/18_nested_prefab/include/nested_prefab/bake_config.h b/vendor/flecs/core/examples/cpp/18_nested_prefab/include/nested_prefab/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/18_nested_prefab/include/nested_prefab/bake_config.h
rename to vendor/flecs/core/examples/cpp/18_nested_prefab/include/nested_prefab/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/18_nested_prefab/project.json b/vendor/flecs/core/examples/cpp/18_nested_prefab/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/18_nested_prefab/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/18_nested_prefab/src/main.cpp b/vendor/flecs/core/examples/cpp/18_nested_prefab/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/18_nested_prefab/src/main.cpp
rename to vendor/flecs/core/examples/cpp/18_nested_prefab/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/19_auto_override_nested_prefab/include/auto_override_nested_prefab.h b/vendor/flecs/core/examples/cpp/19_auto_override_nested_prefab/include/auto_override_nested_prefab.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/19_auto_override_nested_prefab/include/auto_override_nested_prefab.h
rename to vendor/flecs/core/examples/cpp/19_auto_override_nested_prefab/include/auto_override_nested_prefab.h
diff --git a/fggl/ecs2/flecs/examples/cpp/19_auto_override_nested_prefab/include/auto_override_nested_prefab/bake_config.h b/vendor/flecs/core/examples/cpp/19_auto_override_nested_prefab/include/auto_override_nested_prefab/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/19_auto_override_nested_prefab/include/auto_override_nested_prefab/bake_config.h
rename to vendor/flecs/core/examples/cpp/19_auto_override_nested_prefab/include/auto_override_nested_prefab/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/19_auto_override_nested_prefab/project.json b/vendor/flecs/core/examples/cpp/19_auto_override_nested_prefab/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/19_auto_override_nested_prefab/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/19_auto_override_nested_prefab/src/main.cpp b/vendor/flecs/core/examples/cpp/19_auto_override_nested_prefab/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/19_auto_override_nested_prefab/src/main.cpp
rename to vendor/flecs/core/examples/cpp/19_auto_override_nested_prefab/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/20_nested_variant/include/nested_variant.h b/vendor/flecs/core/examples/cpp/20_nested_variant/include/nested_variant.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/20_nested_variant/include/nested_variant.h
rename to vendor/flecs/core/examples/cpp/20_nested_variant/include/nested_variant.h
diff --git a/fggl/ecs2/flecs/examples/cpp/20_nested_variant/include/nested_variant/bake_config.h b/vendor/flecs/core/examples/cpp/20_nested_variant/include/nested_variant/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/20_nested_variant/include/nested_variant/bake_config.h
rename to vendor/flecs/core/examples/cpp/20_nested_variant/include/nested_variant/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/20_nested_variant/project.json b/vendor/flecs/core/examples/cpp/20_nested_variant/project.json
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rename from fggl/ecs2/flecs/examples/cpp/20_nested_variant/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/20_nested_variant/src/main.cpp b/vendor/flecs/core/examples/cpp/20_nested_variant/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/20_nested_variant/src/main.cpp
rename to vendor/flecs/core/examples/cpp/20_nested_variant/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/21_system_features/include/system_features.h b/vendor/flecs/core/examples/cpp/21_system_features/include/system_features.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/21_system_features/include/system_features.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/21_system_features/include/system_features/bake_config.h b/vendor/flecs/core/examples/cpp/21_system_features/include/system_features/bake_config.h
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rename from fggl/ecs2/flecs/examples/cpp/21_system_features/include/system_features/bake_config.h
rename to vendor/flecs/core/examples/cpp/21_system_features/include/system_features/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/21_system_features/project.json b/vendor/flecs/core/examples/cpp/21_system_features/project.json
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rename from fggl/ecs2/flecs/examples/cpp/21_system_features/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/21_system_features/src/main.cpp b/vendor/flecs/core/examples/cpp/21_system_features/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/21_system_features/src/main.cpp
rename to vendor/flecs/core/examples/cpp/21_system_features/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/22_optional/include/optional.h b/vendor/flecs/core/examples/cpp/22_optional/include/optional.h
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rename from fggl/ecs2/flecs/examples/cpp/22_optional/include/optional.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/22_optional/include/optional/bake_config.h b/vendor/flecs/core/examples/cpp/22_optional/include/optional/bake_config.h
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rename from fggl/ecs2/flecs/examples/cpp/22_optional/include/optional/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/22_optional/project.json b/vendor/flecs/core/examples/cpp/22_optional/project.json
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rename from fggl/ecs2/flecs/examples/cpp/22_optional/project.json
rename to vendor/flecs/core/examples/cpp/22_optional/project.json
diff --git a/fggl/ecs2/flecs/examples/cpp/22_optional/src/main.cpp b/vendor/flecs/core/examples/cpp/22_optional/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/22_optional/src/main.cpp
rename to vendor/flecs/core/examples/cpp/22_optional/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/23_get_children/include/get_children.h b/vendor/flecs/core/examples/cpp/23_get_children/include/get_children.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/23_get_children/include/get_children.h
rename to vendor/flecs/core/examples/cpp/23_get_children/include/get_children.h
diff --git a/fggl/ecs2/flecs/examples/cpp/23_get_children/include/get_children/bake_config.h b/vendor/flecs/core/examples/cpp/23_get_children/include/get_children/bake_config.h
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rename from fggl/ecs2/flecs/examples/cpp/23_get_children/include/get_children/bake_config.h
rename to vendor/flecs/core/examples/cpp/23_get_children/include/get_children/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/23_get_children/project.json b/vendor/flecs/core/examples/cpp/23_get_children/project.json
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rename from fggl/ecs2/flecs/examples/cpp/23_get_children/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/23_get_children/src/main.cpp b/vendor/flecs/core/examples/cpp/23_get_children/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/23_get_children/src/main.cpp
rename to vendor/flecs/core/examples/cpp/23_get_children/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/24_on_demand_system/include/on_demand_system.h b/vendor/flecs/core/examples/cpp/24_on_demand_system/include/on_demand_system.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/24_on_demand_system/include/on_demand_system.h
rename to vendor/flecs/core/examples/cpp/24_on_demand_system/include/on_demand_system.h
diff --git a/fggl/ecs2/flecs/examples/cpp/24_on_demand_system/include/on_demand_system/bake_config.h b/vendor/flecs/core/examples/cpp/24_on_demand_system/include/on_demand_system/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/24_on_demand_system/include/on_demand_system/bake_config.h
rename to vendor/flecs/core/examples/cpp/24_on_demand_system/include/on_demand_system/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/24_on_demand_system/project.json b/vendor/flecs/core/examples/cpp/24_on_demand_system/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/30_snapshot_iter/include/snapshot_iter/bake_config.h b/vendor/flecs/core/examples/cpp/30_snapshot_iter/include/snapshot_iter/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/34_persistent_query/.gitignore b/vendor/flecs/core/examples/cpp/34_persistent_query/.gitignore
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diff --git a/fggl/ecs2/flecs/examples/cpp/35_empty_system_signature/.gitignore b/vendor/flecs/core/examples/cpp/35_empty_system_signature/.gitignore
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diff --git a/fggl/ecs2/flecs/examples/cpp/35_empty_system_signature/include/empty_system_signature/bake_config.h b/vendor/flecs/core/examples/cpp/35_empty_system_signature/include/empty_system_signature/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/36_periodic_system/.gitignore b/vendor/flecs/core/examples/cpp/36_periodic_system/.gitignore
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diff --git a/fggl/ecs2/flecs/examples/cpp/36_periodic_system/include/periodic_system/bake_config.h b/vendor/flecs/core/examples/cpp/36_periodic_system/include/periodic_system/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/36_periodic_system/project.json b/vendor/flecs/core/examples/cpp/36_periodic_system/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/37_delta_time/include/delta_time.h b/vendor/flecs/core/examples/cpp/37_delta_time/include/delta_time.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/38_delta_system_time/include/delta_system_time.h b/vendor/flecs/core/examples/cpp/38_delta_system_time/include/delta_system_time.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/38_delta_system_time/include/delta_system_time/bake_config.h b/vendor/flecs/core/examples/cpp/38_delta_system_time/include/delta_system_time/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/39_set/include/set.h b/vendor/flecs/core/examples/cpp/39_set/include/set.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/42_pair/include/pair.h b/vendor/flecs/core/examples/cpp/42_pair/include/pair.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/44_switch/include/switch.h b/vendor/flecs/core/examples/cpp/44_switch/include/switch.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/45_subquery/include/subquery.h b/vendor/flecs/core/examples/cpp/45_subquery/include/subquery.h
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rename from fggl/ecs2/flecs/examples/cpp/45_subquery/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/45_subquery/src/main.cpp b/vendor/flecs/core/examples/cpp/45_subquery/src/main.cpp
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diff --git a/fggl/ecs2/flecs/examples/cpp/47_deferred_operations/include/deferred_operations.h b/vendor/flecs/core/examples/cpp/47_deferred_operations/include/deferred_operations.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/47_deferred_operations/include/deferred_operations/bake_config.h b/vendor/flecs/core/examples/cpp/47_deferred_operations/include/deferred_operations/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/47_deferred_operations/project.json b/vendor/flecs/core/examples/cpp/47_deferred_operations/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/48_is_alive/include/is_alive.h b/vendor/flecs/core/examples/cpp/48_is_alive/include/is_alive.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/48_is_alive/include/is_alive/bake_config.h b/vendor/flecs/core/examples/cpp/48_is_alive/include/is_alive/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/48_is_alive/project.json b/vendor/flecs/core/examples/cpp/48_is_alive/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/48_is_alive/src/main.cpp b/vendor/flecs/core/examples/cpp/48_is_alive/src/main.cpp
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diff --git a/fggl/ecs2/flecs/examples/cpp/49_singleton/include/singleton.h b/vendor/flecs/core/examples/cpp/49_singleton/include/singleton.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/49_singleton/include/singleton/bake_config.h b/vendor/flecs/core/examples/cpp/49_singleton/include/singleton/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/49_singleton/project.json b/vendor/flecs/core/examples/cpp/49_singleton/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/50_disable_component/include/disable_component.h b/vendor/flecs/core/examples/cpp/50_disable_component/include/disable_component.h
similarity index 100%
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diff --git a/fggl/ecs2/flecs/examples/cpp/50_disable_component/include/disable_component/bake_config.h b/vendor/flecs/core/examples/cpp/50_disable_component/include/disable_component/bake_config.h
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rename from fggl/ecs2/flecs/examples/cpp/50_disable_component/include/disable_component/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/50_disable_component/project.json b/vendor/flecs/core/examples/cpp/50_disable_component/project.json
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similarity index 100%
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diff --git a/fggl/ecs2/flecs/examples/cpp/53_dynamic_buffer/include/dynamic_buffer.h b/vendor/flecs/core/examples/cpp/53_dynamic_buffer/include/dynamic_buffer.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/53_dynamic_buffer/include/dynamic_buffer.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/53_dynamic_buffer/include/dynamic_buffer/bake_config.h b/vendor/flecs/core/examples/cpp/53_dynamic_buffer/include/dynamic_buffer/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/53_dynamic_buffer/include/dynamic_buffer/bake_config.h
rename to vendor/flecs/core/examples/cpp/53_dynamic_buffer/include/dynamic_buffer/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/53_dynamic_buffer/project.json b/vendor/flecs/core/examples/cpp/53_dynamic_buffer/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/53_dynamic_buffer/project.json
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similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/53_dynamic_buffer/src/main.cpp
rename to vendor/flecs/core/examples/cpp/53_dynamic_buffer/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/54_simple_threads/include/simple_threads.h b/vendor/flecs/core/examples/cpp/54_simple_threads/include/simple_threads.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/54_simple_threads/include/simple_threads.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/54_simple_threads/include/simple_threads/bake_config.h b/vendor/flecs/core/examples/cpp/54_simple_threads/include/simple_threads/bake_config.h
similarity index 100%
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rename to vendor/flecs/core/examples/cpp/54_simple_threads/include/simple_threads/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/54_simple_threads/project.json b/vendor/flecs/core/examples/cpp/54_simple_threads/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/54_simple_threads/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/54_simple_threads/src/main.cpp b/vendor/flecs/core/examples/cpp/54_simple_threads/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/54_simple_threads/src/main.cpp
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diff --git a/fggl/ecs2/flecs/examples/cpp/55_custom_threads/include/custom_threads.h b/vendor/flecs/core/examples/cpp/55_custom_threads/include/custom_threads.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/55_custom_threads/include/custom_threads.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/55_custom_threads/include/custom_threads/bake_config.h b/vendor/flecs/core/examples/cpp/55_custom_threads/include/custom_threads/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/55_custom_threads/include/custom_threads/bake_config.h
rename to vendor/flecs/core/examples/cpp/55_custom_threads/include/custom_threads/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/55_custom_threads/project.json b/vendor/flecs/core/examples/cpp/55_custom_threads/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/55_custom_threads/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/55_custom_threads/src/main.cpp b/vendor/flecs/core/examples/cpp/55_custom_threads/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/55_custom_threads/src/main.cpp
rename to vendor/flecs/core/examples/cpp/55_custom_threads/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/56_custom_merge/include/custom_merge.h b/vendor/flecs/core/examples/cpp/56_custom_merge/include/custom_merge.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/56_custom_merge/include/custom_merge.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/56_custom_merge/include/custom_merge/bake_config.h b/vendor/flecs/core/examples/cpp/56_custom_merge/include/custom_merge/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/56_custom_merge/include/custom_merge/bake_config.h
rename to vendor/flecs/core/examples/cpp/56_custom_merge/include/custom_merge/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/56_custom_merge/project.json b/vendor/flecs/core/examples/cpp/56_custom_merge/project.json
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/56_custom_merge/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/56_custom_merge/src/main.cpp b/vendor/flecs/core/examples/cpp/56_custom_merge/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/56_custom_merge/src/main.cpp
rename to vendor/flecs/core/examples/cpp/56_custom_merge/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/57_inspect_entity/include/inspect_entity.h b/vendor/flecs/core/examples/cpp/57_inspect_entity/include/inspect_entity.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/57_inspect_entity/include/inspect_entity.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/57_inspect_entity/include/inspect_entity/bake_config.h b/vendor/flecs/core/examples/cpp/57_inspect_entity/include/inspect_entity/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/57_inspect_entity/project.json b/vendor/flecs/core/examples/cpp/57_inspect_entity/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/57_inspect_entity/src/main.cpp b/vendor/flecs/core/examples/cpp/57_inspect_entity/src/main.cpp
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diff --git a/fggl/ecs2/flecs/examples/cpp/58_entity_view/include/entity_view.h b/vendor/flecs/core/examples/cpp/58_entity_view/include/entity_view.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/58_entity_view/include/entity_view.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/58_entity_view/include/entity_view/bake_config.h b/vendor/flecs/core/examples/cpp/58_entity_view/include/entity_view/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/58_entity_view/project.json b/vendor/flecs/core/examples/cpp/58_entity_view/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/58_entity_view/src/main.cpp b/vendor/flecs/core/examples/cpp/58_entity_view/src/main.cpp
similarity index 100%
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diff --git a/fggl/ecs2/flecs/examples/cpp/59_pair_types/include/pair_types.h b/vendor/flecs/core/examples/cpp/59_pair_types/include/pair_types.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/59_pair_types/include/pair_types.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/59_pair_types/include/pair_types/bake_config.h b/vendor/flecs/core/examples/cpp/59_pair_types/include/pair_types/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/59_pair_types/project.json b/vendor/flecs/core/examples/cpp/59_pair_types/project.json
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similarity index 100%
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diff --git a/fggl/ecs2/flecs/examples/cpp/60_observer/include/observer.h b/vendor/flecs/core/examples/cpp/60_observer/include/observer.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/60_observer/include/observer/bake_config.h b/vendor/flecs/core/examples/cpp/60_observer/include/observer/bake_config.h
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rename from fggl/ecs2/flecs/examples/cpp/60_observer/include/observer/bake_config.h
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diff --git a/fggl/ecs2/flecs/examples/cpp/60_observer/project.json b/vendor/flecs/core/examples/cpp/60_observer/project.json
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diff --git a/fggl/ecs2/flecs/examples/cpp/60_observer/src/main.cpp b/vendor/flecs/core/examples/cpp/60_observer/src/main.cpp
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rename from fggl/ecs2/flecs/examples/cpp/60_observer/src/main.cpp
rename to vendor/flecs/core/examples/cpp/60_observer/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/cpp/61_custom_pipeline/include/custom_pipeline.h b/vendor/flecs/core/examples/cpp/61_custom_pipeline/include/custom_pipeline.h
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/61_custom_pipeline/include/custom_pipeline.h
rename to vendor/flecs/core/examples/cpp/61_custom_pipeline/include/custom_pipeline.h
diff --git a/fggl/ecs2/flecs/examples/cpp/61_custom_pipeline/include/custom_pipeline/bake_config.h b/vendor/flecs/core/examples/cpp/61_custom_pipeline/include/custom_pipeline/bake_config.h
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rename from fggl/ecs2/flecs/examples/cpp/61_custom_pipeline/include/custom_pipeline/bake_config.h
rename to vendor/flecs/core/examples/cpp/61_custom_pipeline/include/custom_pipeline/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/cpp/61_custom_pipeline/project.json b/vendor/flecs/core/examples/cpp/61_custom_pipeline/project.json
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rename from fggl/ecs2/flecs/examples/cpp/61_custom_pipeline/project.json
rename to vendor/flecs/core/examples/cpp/61_custom_pipeline/project.json
diff --git a/fggl/ecs2/flecs/examples/cpp/61_custom_pipeline/src/main.cpp b/vendor/flecs/core/examples/cpp/61_custom_pipeline/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/examples/cpp/61_custom_pipeline/src/main.cpp
rename to vendor/flecs/core/examples/cpp/61_custom_pipeline/src/main.cpp
diff --git a/fggl/ecs2/flecs/examples/os_api/bake/include/flecs-os_api-bake/bake_config.h b/vendor/flecs/core/examples/os_api/bake/include/flecs-os_api-bake/bake_config.h
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rename from fggl/ecs2/flecs/examples/os_api/bake/include/flecs-os_api-bake/bake_config.h
rename to vendor/flecs/core/examples/os_api/bake/include/flecs-os_api-bake/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/os_api/bake/include/flecs_os_api_bake.h b/vendor/flecs/core/examples/os_api/bake/include/flecs_os_api_bake.h
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rename from fggl/ecs2/flecs/examples/os_api/bake/include/flecs_os_api_bake.h
rename to vendor/flecs/core/examples/os_api/bake/include/flecs_os_api_bake.h
diff --git a/fggl/ecs2/flecs/examples/os_api/bake/project.json b/vendor/flecs/core/examples/os_api/bake/project.json
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rename from fggl/ecs2/flecs/examples/os_api/bake/project.json
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diff --git a/fggl/ecs2/flecs/examples/os_api/bake/src/main.c b/vendor/flecs/core/examples/os_api/bake/src/main.c
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rename from fggl/ecs2/flecs/examples/os_api/bake/src/main.c
rename to vendor/flecs/core/examples/os_api/bake/src/main.c
diff --git a/fggl/ecs2/flecs/examples/os_api/posix/include/flecs-os_api-posix/bake_config.h b/vendor/flecs/core/examples/os_api/posix/include/flecs-os_api-posix/bake_config.h
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rename from fggl/ecs2/flecs/examples/os_api/posix/include/flecs-os_api-posix/bake_config.h
rename to vendor/flecs/core/examples/os_api/posix/include/flecs-os_api-posix/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/os_api/posix/include/flecs_os_api_posix.h b/vendor/flecs/core/examples/os_api/posix/include/flecs_os_api_posix.h
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rename from fggl/ecs2/flecs/examples/os_api/posix/include/flecs_os_api_posix.h
rename to vendor/flecs/core/examples/os_api/posix/include/flecs_os_api_posix.h
diff --git a/fggl/ecs2/flecs/examples/os_api/posix/project.json b/vendor/flecs/core/examples/os_api/posix/project.json
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rename from fggl/ecs2/flecs/examples/os_api/posix/project.json
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diff --git a/fggl/ecs2/flecs/examples/os_api/posix/src/main.c b/vendor/flecs/core/examples/os_api/posix/src/main.c
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rename from fggl/ecs2/flecs/examples/os_api/posix/src/main.c
rename to vendor/flecs/core/examples/os_api/posix/src/main.c
diff --git a/fggl/ecs2/flecs/examples/os_api/stdcpp/include/flecs-os_api-stdcpp/bake_config.h b/vendor/flecs/core/examples/os_api/stdcpp/include/flecs-os_api-stdcpp/bake_config.h
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rename from fggl/ecs2/flecs/examples/os_api/stdcpp/include/flecs-os_api-stdcpp/bake_config.h
rename to vendor/flecs/core/examples/os_api/stdcpp/include/flecs-os_api-stdcpp/bake_config.h
diff --git a/fggl/ecs2/flecs/examples/os_api/stdcpp/include/flecs_os_api_stdcpp.h b/vendor/flecs/core/examples/os_api/stdcpp/include/flecs_os_api_stdcpp.h
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diff --git a/fggl/ecs2/flecs/examples/os_api/stdcpp/project.json b/vendor/flecs/core/examples/os_api/stdcpp/project.json
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diff --git a/fggl/ecs2/flecs/include/flecs/addons/snapshot.h b/vendor/flecs/core/include/flecs/addons/snapshot.h
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diff --git a/fggl/ecs2/flecs/include/flecs/cpp/builder.hpp b/vendor/flecs/core/include/flecs/cpp/builder.hpp
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rename from fggl/ecs2/flecs/include/flecs/cpp/filter_iterator.hpp
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diff --git a/fggl/ecs2/flecs/include/flecs/cpp/iter.hpp b/vendor/flecs/core/include/flecs/cpp/iter.hpp
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diff --git a/fggl/ecs2/flecs/include/flecs/cpp/lifecycle_traits.hpp b/vendor/flecs/core/include/flecs/cpp/lifecycle_traits.hpp
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rename from fggl/ecs2/flecs/include/flecs/cpp/lifecycle_traits.hpp
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diff --git a/fggl/ecs2/flecs/include/flecs/cpp/module.hpp b/vendor/flecs/core/include/flecs/cpp/module.hpp
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diff --git a/fggl/ecs2/flecs/include/flecs/cpp/observer.hpp b/vendor/flecs/core/include/flecs/cpp/observer.hpp
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diff --git a/fggl/ecs2/flecs/include/flecs/cpp/pair.hpp b/vendor/flecs/core/include/flecs/cpp/pair.hpp
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diff --git a/fggl/ecs2/flecs/include/flecs/cpp/query.hpp b/vendor/flecs/core/include/flecs/cpp/query.hpp
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diff --git a/fggl/ecs2/flecs/include/flecs/cpp/snapshot.hpp b/vendor/flecs/core/include/flecs/cpp/snapshot.hpp
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diff --git a/fggl/ecs2/flecs/include/flecs/cpp/system.hpp b/vendor/flecs/core/include/flecs/cpp/system.hpp
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diff --git a/fggl/ecs2/flecs/include/flecs/cpp/type.hpp b/vendor/flecs/core/include/flecs/cpp/type.hpp
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diff --git a/fggl/ecs2/flecs/include/flecs/modules/pipeline.h b/vendor/flecs/core/include/flecs/modules/pipeline.h
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diff --git a/fggl/ecs2/flecs/include/flecs/modules/timer.h b/vendor/flecs/core/include/flecs/modules/timer.h
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diff --git a/fggl/ecs2/flecs/include/flecs/os_api.h b/vendor/flecs/core/include/flecs/os_api.h
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diff --git a/fggl/ecs2/flecs/include/flecs/private/api_defines.h b/vendor/flecs/core/include/flecs/private/api_defines.h
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diff --git a/fggl/ecs2/flecs/include/flecs/private/api_support.h b/vendor/flecs/core/include/flecs/private/api_support.h
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diff --git a/fggl/ecs2/flecs/include/flecs/private/log.h b/vendor/flecs/core/include/flecs/private/log.h
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diff --git a/fggl/ecs2/flecs/include/flecs/private/strbuf.h b/vendor/flecs/core/include/flecs/private/strbuf.h
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diff --git a/fggl/ecs2/flecs/include/flecs/private/switch_list.h b/vendor/flecs/core/include/flecs/private/switch_list.h
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diff --git a/fggl/ecs2/flecs/include/flecs/private/vector.h b/vendor/flecs/core/include/flecs/private/vector.h
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diff --git a/fggl/ecs2/flecs/include/flecs/type.h b/vendor/flecs/core/include/flecs/type.h
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diff --git a/fggl/ecs2/flecs/meson.build b/vendor/flecs/core/meson.build
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diff --git a/fggl/ecs2/flecs/project.json b/vendor/flecs/core/project.json
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diff --git a/fggl/ecs2/flecs/src/addons/bulk.c b/vendor/flecs/core/src/addons/bulk.c
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diff --git a/fggl/ecs2/flecs/src/addons/direct_access.c b/vendor/flecs/core/src/addons/direct_access.c
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diff --git a/fggl/ecs2/flecs/src/addons/plecs.c b/vendor/flecs/core/src/addons/plecs.c
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diff --git a/fggl/ecs2/flecs/src/addons/stats.c b/vendor/flecs/core/src/addons/stats.c
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diff --git a/fggl/ecs2/flecs/src/api_support.c b/vendor/flecs/core/src/api_support.c
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rename to vendor/flecs/core/src/entity_index.h
diff --git a/fggl/ecs2/flecs/src/filter.c b/vendor/flecs/core/src/filter.c
similarity index 100%
rename from fggl/ecs2/flecs/src/filter.c
rename to vendor/flecs/core/src/filter.c
diff --git a/fggl/ecs2/flecs/src/hash.c b/vendor/flecs/core/src/hash.c
similarity index 100%
rename from fggl/ecs2/flecs/src/hash.c
rename to vendor/flecs/core/src/hash.c
diff --git a/fggl/ecs2/flecs/src/hashmap.c b/vendor/flecs/core/src/hashmap.c
similarity index 100%
rename from fggl/ecs2/flecs/src/hashmap.c
rename to vendor/flecs/core/src/hashmap.c
diff --git a/fggl/ecs2/flecs/src/hierarchy.c b/vendor/flecs/core/src/hierarchy.c
similarity index 100%
rename from fggl/ecs2/flecs/src/hierarchy.c
rename to vendor/flecs/core/src/hierarchy.c
diff --git a/fggl/ecs2/flecs/src/iter.c b/vendor/flecs/core/src/iter.c
similarity index 100%
rename from fggl/ecs2/flecs/src/iter.c
rename to vendor/flecs/core/src/iter.c
diff --git a/fggl/ecs2/flecs/src/log.c b/vendor/flecs/core/src/log.c
similarity index 100%
rename from fggl/ecs2/flecs/src/log.c
rename to vendor/flecs/core/src/log.c
diff --git a/fggl/ecs2/flecs/src/map.c b/vendor/flecs/core/src/map.c
similarity index 100%
rename from fggl/ecs2/flecs/src/map.c
rename to vendor/flecs/core/src/map.c
diff --git a/fggl/ecs2/flecs/src/misc.c b/vendor/flecs/core/src/misc.c
similarity index 100%
rename from fggl/ecs2/flecs/src/misc.c
rename to vendor/flecs/core/src/misc.c
diff --git a/fggl/ecs2/flecs/src/modules/pipeline/pipeline.c b/vendor/flecs/core/src/modules/pipeline/pipeline.c
similarity index 100%
rename from fggl/ecs2/flecs/src/modules/pipeline/pipeline.c
rename to vendor/flecs/core/src/modules/pipeline/pipeline.c
diff --git a/fggl/ecs2/flecs/src/modules/pipeline/pipeline.h b/vendor/flecs/core/src/modules/pipeline/pipeline.h
similarity index 100%
rename from fggl/ecs2/flecs/src/modules/pipeline/pipeline.h
rename to vendor/flecs/core/src/modules/pipeline/pipeline.h
diff --git a/fggl/ecs2/flecs/src/modules/pipeline/worker.c b/vendor/flecs/core/src/modules/pipeline/worker.c
similarity index 100%
rename from fggl/ecs2/flecs/src/modules/pipeline/worker.c
rename to vendor/flecs/core/src/modules/pipeline/worker.c
diff --git a/fggl/ecs2/flecs/src/modules/system/system.c b/vendor/flecs/core/src/modules/system/system.c
similarity index 100%
rename from fggl/ecs2/flecs/src/modules/system/system.c
rename to vendor/flecs/core/src/modules/system/system.c
diff --git a/fggl/ecs2/flecs/src/modules/system/system.h b/vendor/flecs/core/src/modules/system/system.h
similarity index 100%
rename from fggl/ecs2/flecs/src/modules/system/system.h
rename to vendor/flecs/core/src/modules/system/system.h
diff --git a/fggl/ecs2/flecs/src/modules/timer.c b/vendor/flecs/core/src/modules/timer.c
similarity index 100%
rename from fggl/ecs2/flecs/src/modules/timer.c
rename to vendor/flecs/core/src/modules/timer.c
diff --git a/fggl/ecs2/flecs/src/observer.c b/vendor/flecs/core/src/observer.c
similarity index 100%
rename from fggl/ecs2/flecs/src/observer.c
rename to vendor/flecs/core/src/observer.c
diff --git a/fggl/ecs2/flecs/src/os_api.c b/vendor/flecs/core/src/os_api.c
similarity index 100%
rename from fggl/ecs2/flecs/src/os_api.c
rename to vendor/flecs/core/src/os_api.c
diff --git a/fggl/ecs2/flecs/src/private_api.h b/vendor/flecs/core/src/private_api.h
similarity index 100%
rename from fggl/ecs2/flecs/src/private_api.h
rename to vendor/flecs/core/src/private_api.h
diff --git a/fggl/ecs2/flecs/src/private_types.h b/vendor/flecs/core/src/private_types.h
similarity index 100%
rename from fggl/ecs2/flecs/src/private_types.h
rename to vendor/flecs/core/src/private_types.h
diff --git a/fggl/ecs2/flecs/src/query.c b/vendor/flecs/core/src/query.c
similarity index 100%
rename from fggl/ecs2/flecs/src/query.c
rename to vendor/flecs/core/src/query.c
diff --git a/fggl/ecs2/flecs/src/sparse.c b/vendor/flecs/core/src/sparse.c
similarity index 100%
rename from fggl/ecs2/flecs/src/sparse.c
rename to vendor/flecs/core/src/sparse.c
diff --git a/fggl/ecs2/flecs/src/stage.c b/vendor/flecs/core/src/stage.c
similarity index 100%
rename from fggl/ecs2/flecs/src/stage.c
rename to vendor/flecs/core/src/stage.c
diff --git a/fggl/ecs2/flecs/src/strbuf.c b/vendor/flecs/core/src/strbuf.c
similarity index 100%
rename from fggl/ecs2/flecs/src/strbuf.c
rename to vendor/flecs/core/src/strbuf.c
diff --git a/fggl/ecs2/flecs/src/switch_list.c b/vendor/flecs/core/src/switch_list.c
similarity index 100%
rename from fggl/ecs2/flecs/src/switch_list.c
rename to vendor/flecs/core/src/switch_list.c
diff --git a/fggl/ecs2/flecs/src/table.c b/vendor/flecs/core/src/table.c
similarity index 100%
rename from fggl/ecs2/flecs/src/table.c
rename to vendor/flecs/core/src/table.c
diff --git a/fggl/ecs2/flecs/src/table_graph.c b/vendor/flecs/core/src/table_graph.c
similarity index 100%
rename from fggl/ecs2/flecs/src/table_graph.c
rename to vendor/flecs/core/src/table_graph.c
diff --git a/fggl/ecs2/flecs/src/trigger.c b/vendor/flecs/core/src/trigger.c
similarity index 100%
rename from fggl/ecs2/flecs/src/trigger.c
rename to vendor/flecs/core/src/trigger.c
diff --git a/fggl/ecs2/flecs/src/type.c b/vendor/flecs/core/src/type.c
similarity index 100%
rename from fggl/ecs2/flecs/src/type.c
rename to vendor/flecs/core/src/type.c
diff --git a/fggl/ecs2/flecs/src/vector.c b/vendor/flecs/core/src/vector.c
similarity index 100%
rename from fggl/ecs2/flecs/src/vector.c
rename to vendor/flecs/core/src/vector.c
diff --git a/fggl/ecs2/flecs/src/world.c b/vendor/flecs/core/src/world.c
similarity index 100%
rename from fggl/ecs2/flecs/src/world.c
rename to vendor/flecs/core/src/world.c
diff --git a/fggl/ecs2/flecs/templates/c/flecs-graphics/.gitignore b/vendor/flecs/core/templates/c/flecs-graphics/.gitignore
similarity index 100%
rename from fggl/ecs2/flecs/templates/c/flecs-graphics/.gitignore
rename to vendor/flecs/core/templates/c/flecs-graphics/.gitignore
diff --git a/fggl/ecs2/flecs/templates/c/flecs-graphics/include/__id_underscore.h b/vendor/flecs/core/templates/c/flecs-graphics/include/__id_underscore.h
similarity index 100%
rename from fggl/ecs2/flecs/templates/c/flecs-graphics/include/__id_underscore.h
rename to vendor/flecs/core/templates/c/flecs-graphics/include/__id_underscore.h
diff --git a/fggl/ecs2/flecs/templates/c/flecs-graphics/project.json b/vendor/flecs/core/templates/c/flecs-graphics/project.json
similarity index 100%
rename from fggl/ecs2/flecs/templates/c/flecs-graphics/project.json
rename to vendor/flecs/core/templates/c/flecs-graphics/project.json
diff --git a/fggl/ecs2/flecs/templates/c/flecs-graphics/src/main.c b/vendor/flecs/core/templates/c/flecs-graphics/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/templates/c/flecs-graphics/src/main.c
rename to vendor/flecs/core/templates/c/flecs-graphics/src/main.c
diff --git a/fggl/ecs2/flecs/templates/c/flecs-module/.gitignore b/vendor/flecs/core/templates/c/flecs-module/.gitignore
similarity index 100%
rename from fggl/ecs2/flecs/templates/c/flecs-module/.gitignore
rename to vendor/flecs/core/templates/c/flecs-module/.gitignore
diff --git a/fggl/ecs2/flecs/templates/c/flecs-module/include/__id_underscore.h b/vendor/flecs/core/templates/c/flecs-module/include/__id_underscore.h
similarity index 100%
rename from fggl/ecs2/flecs/templates/c/flecs-module/include/__id_underscore.h
rename to vendor/flecs/core/templates/c/flecs-module/include/__id_underscore.h
diff --git a/fggl/ecs2/flecs/templates/c/flecs-module/project.json b/vendor/flecs/core/templates/c/flecs-module/project.json
similarity index 100%
rename from fggl/ecs2/flecs/templates/c/flecs-module/project.json
rename to vendor/flecs/core/templates/c/flecs-module/project.json
diff --git a/fggl/ecs2/flecs/templates/c/flecs-module/src/main.c b/vendor/flecs/core/templates/c/flecs-module/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/templates/c/flecs-module/src/main.c
rename to vendor/flecs/core/templates/c/flecs-module/src/main.c
diff --git a/fggl/ecs2/flecs/templates/c/flecs/.gitignore b/vendor/flecs/core/templates/c/flecs/.gitignore
similarity index 100%
rename from fggl/ecs2/flecs/templates/c/flecs/.gitignore
rename to vendor/flecs/core/templates/c/flecs/.gitignore
diff --git a/fggl/ecs2/flecs/templates/c/flecs/include/__id_underscore.h b/vendor/flecs/core/templates/c/flecs/include/__id_underscore.h
similarity index 100%
rename from fggl/ecs2/flecs/templates/c/flecs/include/__id_underscore.h
rename to vendor/flecs/core/templates/c/flecs/include/__id_underscore.h
diff --git a/fggl/ecs2/flecs/templates/c/flecs/project.json b/vendor/flecs/core/templates/c/flecs/project.json
similarity index 100%
rename from fggl/ecs2/flecs/templates/c/flecs/project.json
rename to vendor/flecs/core/templates/c/flecs/project.json
diff --git a/fggl/ecs2/flecs/templates/c/flecs/src/main.c b/vendor/flecs/core/templates/c/flecs/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/templates/c/flecs/src/main.c
rename to vendor/flecs/core/templates/c/flecs/src/main.c
diff --git a/fggl/ecs2/flecs/templates/cpp/flecs/.gitignore b/vendor/flecs/core/templates/cpp/flecs/.gitignore
similarity index 100%
rename from fggl/ecs2/flecs/templates/cpp/flecs/.gitignore
rename to vendor/flecs/core/templates/cpp/flecs/.gitignore
diff --git a/fggl/ecs2/flecs/templates/cpp/flecs/include/__id_underscore.h b/vendor/flecs/core/templates/cpp/flecs/include/__id_underscore.h
similarity index 100%
rename from fggl/ecs2/flecs/templates/cpp/flecs/include/__id_underscore.h
rename to vendor/flecs/core/templates/cpp/flecs/include/__id_underscore.h
diff --git a/fggl/ecs2/flecs/templates/cpp/flecs/project.json b/vendor/flecs/core/templates/cpp/flecs/project.json
similarity index 100%
rename from fggl/ecs2/flecs/templates/cpp/flecs/project.json
rename to vendor/flecs/core/templates/cpp/flecs/project.json
diff --git a/fggl/ecs2/flecs/templates/cpp/flecs/src/main.cpp b/vendor/flecs/core/templates/cpp/flecs/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/templates/cpp/flecs/src/main.cpp
rename to vendor/flecs/core/templates/cpp/flecs/src/main.cpp
diff --git a/fggl/ecs2/flecs/test/BUILD.bazel b/vendor/flecs/core/test/BUILD.bazel
similarity index 100%
rename from fggl/ecs2/flecs/test/BUILD.bazel
rename to vendor/flecs/core/test/BUILD.bazel
diff --git a/fggl/ecs2/flecs/test/api/.gitignore b/vendor/flecs/core/test/api/.gitignore
similarity index 100%
rename from fggl/ecs2/flecs/test/api/.gitignore
rename to vendor/flecs/core/test/api/.gitignore
diff --git a/fggl/ecs2/flecs/test/api/include/api.h b/vendor/flecs/core/test/api/include/api.h
similarity index 100%
rename from fggl/ecs2/flecs/test/api/include/api.h
rename to vendor/flecs/core/test/api/include/api.h
diff --git a/fggl/ecs2/flecs/test/api/include/api/bake_config.h b/vendor/flecs/core/test/api/include/api/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/test/api/include/api/bake_config.h
rename to vendor/flecs/core/test/api/include/api/bake_config.h
diff --git a/fggl/ecs2/flecs/test/api/project.json b/vendor/flecs/core/test/api/project.json
similarity index 100%
rename from fggl/ecs2/flecs/test/api/project.json
rename to vendor/flecs/core/test/api/project.json
diff --git a/fggl/ecs2/flecs/test/api/src/Add.c b/vendor/flecs/core/test/api/src/Add.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Add.c
rename to vendor/flecs/core/test/api/src/Add.c
diff --git a/fggl/ecs2/flecs/test/api/src/Add_bulk.c b/vendor/flecs/core/test/api/src/Add_bulk.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Add_bulk.c
rename to vendor/flecs/core/test/api/src/Add_bulk.c
diff --git a/fggl/ecs2/flecs/test/api/src/Add_remove_bulk.c b/vendor/flecs/core/test/api/src/Add_remove_bulk.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Add_remove_bulk.c
rename to vendor/flecs/core/test/api/src/Add_remove_bulk.c
diff --git a/fggl/ecs2/flecs/test/api/src/Clone.c b/vendor/flecs/core/test/api/src/Clone.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Clone.c
rename to vendor/flecs/core/test/api/src/Clone.c
diff --git a/fggl/ecs2/flecs/test/api/src/ComponentLifecycle.c b/vendor/flecs/core/test/api/src/ComponentLifecycle.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/ComponentLifecycle.c
rename to vendor/flecs/core/test/api/src/ComponentLifecycle.c
diff --git a/fggl/ecs2/flecs/test/api/src/Count.c b/vendor/flecs/core/test/api/src/Count.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Count.c
rename to vendor/flecs/core/test/api/src/Count.c
diff --git a/fggl/ecs2/flecs/test/api/src/DeferredActions.c b/vendor/flecs/core/test/api/src/DeferredActions.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/DeferredActions.c
rename to vendor/flecs/core/test/api/src/DeferredActions.c
diff --git a/fggl/ecs2/flecs/test/api/src/Delete.c b/vendor/flecs/core/test/api/src/Delete.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Delete.c
rename to vendor/flecs/core/test/api/src/Delete.c
diff --git a/fggl/ecs2/flecs/test/api/src/Delete_w_filter.c b/vendor/flecs/core/test/api/src/Delete_w_filter.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Delete_w_filter.c
rename to vendor/flecs/core/test/api/src/Delete_w_filter.c
diff --git a/fggl/ecs2/flecs/test/api/src/DirectAccess.c b/vendor/flecs/core/test/api/src/DirectAccess.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/DirectAccess.c
rename to vendor/flecs/core/test/api/src/DirectAccess.c
diff --git a/fggl/ecs2/flecs/test/api/src/EnabledComponents.c b/vendor/flecs/core/test/api/src/EnabledComponents.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/EnabledComponents.c
rename to vendor/flecs/core/test/api/src/EnabledComponents.c
diff --git a/fggl/ecs2/flecs/test/api/src/Entity.c b/vendor/flecs/core/test/api/src/Entity.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Entity.c
rename to vendor/flecs/core/test/api/src/Entity.c
diff --git a/fggl/ecs2/flecs/test/api/src/Error.c b/vendor/flecs/core/test/api/src/Error.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Error.c
rename to vendor/flecs/core/test/api/src/Error.c
diff --git a/fggl/ecs2/flecs/test/api/src/Filter.c b/vendor/flecs/core/test/api/src/Filter.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Filter.c
rename to vendor/flecs/core/test/api/src/Filter.c
diff --git a/fggl/ecs2/flecs/test/api/src/Get_component.c b/vendor/flecs/core/test/api/src/Get_component.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Get_component.c
rename to vendor/flecs/core/test/api/src/Get_component.c
diff --git a/fggl/ecs2/flecs/test/api/src/GlobalComponentIds.c b/vendor/flecs/core/test/api/src/GlobalComponentIds.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/GlobalComponentIds.c
rename to vendor/flecs/core/test/api/src/GlobalComponentIds.c
diff --git a/fggl/ecs2/flecs/test/api/src/Has.c b/vendor/flecs/core/test/api/src/Has.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Has.c
rename to vendor/flecs/core/test/api/src/Has.c
diff --git a/fggl/ecs2/flecs/test/api/src/Hierarchies.c b/vendor/flecs/core/test/api/src/Hierarchies.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Hierarchies.c
rename to vendor/flecs/core/test/api/src/Hierarchies.c
diff --git a/fggl/ecs2/flecs/test/api/src/Internals.c b/vendor/flecs/core/test/api/src/Internals.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Internals.c
rename to vendor/flecs/core/test/api/src/Internals.c
diff --git a/fggl/ecs2/flecs/test/api/src/Lookup.c b/vendor/flecs/core/test/api/src/Lookup.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Lookup.c
rename to vendor/flecs/core/test/api/src/Lookup.c
diff --git a/fggl/ecs2/flecs/test/api/src/Modules.c b/vendor/flecs/core/test/api/src/Modules.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Modules.c
rename to vendor/flecs/core/test/api/src/Modules.c
diff --git a/fggl/ecs2/flecs/test/api/src/Monitor.c b/vendor/flecs/core/test/api/src/Monitor.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Monitor.c
rename to vendor/flecs/core/test/api/src/Monitor.c
diff --git a/fggl/ecs2/flecs/test/api/src/MultiThread.c b/vendor/flecs/core/test/api/src/MultiThread.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/MultiThread.c
rename to vendor/flecs/core/test/api/src/MultiThread.c
diff --git a/fggl/ecs2/flecs/test/api/src/MultiThreadStaging.c b/vendor/flecs/core/test/api/src/MultiThreadStaging.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/MultiThreadStaging.c
rename to vendor/flecs/core/test/api/src/MultiThreadStaging.c
diff --git a/fggl/ecs2/flecs/test/api/src/New.c b/vendor/flecs/core/test/api/src/New.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/New.c
rename to vendor/flecs/core/test/api/src/New.c
diff --git a/fggl/ecs2/flecs/test/api/src/New_w_Count.c b/vendor/flecs/core/test/api/src/New_w_Count.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/New_w_Count.c
rename to vendor/flecs/core/test/api/src/New_w_Count.c
diff --git a/fggl/ecs2/flecs/test/api/src/Observer.c b/vendor/flecs/core/test/api/src/Observer.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Observer.c
rename to vendor/flecs/core/test/api/src/Observer.c
diff --git a/fggl/ecs2/flecs/test/api/src/OnDelete.c b/vendor/flecs/core/test/api/src/OnDelete.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/OnDelete.c
rename to vendor/flecs/core/test/api/src/OnDelete.c
diff --git a/fggl/ecs2/flecs/test/api/src/Pairs.c b/vendor/flecs/core/test/api/src/Pairs.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Pairs.c
rename to vendor/flecs/core/test/api/src/Pairs.c
diff --git a/fggl/ecs2/flecs/test/api/src/Parser.c b/vendor/flecs/core/test/api/src/Parser.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Parser.c
rename to vendor/flecs/core/test/api/src/Parser.c
diff --git a/fggl/ecs2/flecs/test/api/src/Pipeline.c b/vendor/flecs/core/test/api/src/Pipeline.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Pipeline.c
rename to vendor/flecs/core/test/api/src/Pipeline.c
diff --git a/fggl/ecs2/flecs/test/api/src/Plecs.c b/vendor/flecs/core/test/api/src/Plecs.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Plecs.c
rename to vendor/flecs/core/test/api/src/Plecs.c
diff --git a/fggl/ecs2/flecs/test/api/src/Prefab.c b/vendor/flecs/core/test/api/src/Prefab.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Prefab.c
rename to vendor/flecs/core/test/api/src/Prefab.c
diff --git a/fggl/ecs2/flecs/test/api/src/Query.c b/vendor/flecs/core/test/api/src/Query.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Query.c
rename to vendor/flecs/core/test/api/src/Query.c
diff --git a/fggl/ecs2/flecs/test/api/src/Reference.c b/vendor/flecs/core/test/api/src/Reference.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Reference.c
rename to vendor/flecs/core/test/api/src/Reference.c
diff --git a/fggl/ecs2/flecs/test/api/src/Remove.c b/vendor/flecs/core/test/api/src/Remove.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Remove.c
rename to vendor/flecs/core/test/api/src/Remove.c
diff --git a/fggl/ecs2/flecs/test/api/src/Remove_bulk.c b/vendor/flecs/core/test/api/src/Remove_bulk.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Remove_bulk.c
rename to vendor/flecs/core/test/api/src/Remove_bulk.c
diff --git a/fggl/ecs2/flecs/test/api/src/Run.c b/vendor/flecs/core/test/api/src/Run.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Run.c
rename to vendor/flecs/core/test/api/src/Run.c
diff --git a/fggl/ecs2/flecs/test/api/src/Set.c b/vendor/flecs/core/test/api/src/Set.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Set.c
rename to vendor/flecs/core/test/api/src/Set.c
diff --git a/fggl/ecs2/flecs/test/api/src/SingleThreadStaging.c b/vendor/flecs/core/test/api/src/SingleThreadStaging.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/SingleThreadStaging.c
rename to vendor/flecs/core/test/api/src/SingleThreadStaging.c
diff --git a/fggl/ecs2/flecs/test/api/src/Singleton.c b/vendor/flecs/core/test/api/src/Singleton.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Singleton.c
rename to vendor/flecs/core/test/api/src/Singleton.c
diff --git a/fggl/ecs2/flecs/test/api/src/Snapshot.c b/vendor/flecs/core/test/api/src/Snapshot.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Snapshot.c
rename to vendor/flecs/core/test/api/src/Snapshot.c
diff --git a/fggl/ecs2/flecs/test/api/src/Sorting.c b/vendor/flecs/core/test/api/src/Sorting.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Sorting.c
rename to vendor/flecs/core/test/api/src/Sorting.c
diff --git a/fggl/ecs2/flecs/test/api/src/Stresstests.c b/vendor/flecs/core/test/api/src/Stresstests.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Stresstests.c
rename to vendor/flecs/core/test/api/src/Stresstests.c
diff --git a/fggl/ecs2/flecs/test/api/src/Switch.c b/vendor/flecs/core/test/api/src/Switch.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Switch.c
rename to vendor/flecs/core/test/api/src/Switch.c
diff --git a/fggl/ecs2/flecs/test/api/src/SystemCascade.c b/vendor/flecs/core/test/api/src/SystemCascade.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/SystemCascade.c
rename to vendor/flecs/core/test/api/src/SystemCascade.c
diff --git a/fggl/ecs2/flecs/test/api/src/SystemManual.c b/vendor/flecs/core/test/api/src/SystemManual.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/SystemManual.c
rename to vendor/flecs/core/test/api/src/SystemManual.c
diff --git a/fggl/ecs2/flecs/test/api/src/SystemMisc.c b/vendor/flecs/core/test/api/src/SystemMisc.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/SystemMisc.c
rename to vendor/flecs/core/test/api/src/SystemMisc.c
diff --git a/fggl/ecs2/flecs/test/api/src/SystemOnDemand.c b/vendor/flecs/core/test/api/src/SystemOnDemand.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/SystemOnDemand.c
rename to vendor/flecs/core/test/api/src/SystemOnDemand.c
diff --git a/fggl/ecs2/flecs/test/api/src/SystemOnSet.c b/vendor/flecs/core/test/api/src/SystemOnSet.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/SystemOnSet.c
rename to vendor/flecs/core/test/api/src/SystemOnSet.c
diff --git a/fggl/ecs2/flecs/test/api/src/SystemPeriodic.c b/vendor/flecs/core/test/api/src/SystemPeriodic.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/SystemPeriodic.c
rename to vendor/flecs/core/test/api/src/SystemPeriodic.c
diff --git a/fggl/ecs2/flecs/test/api/src/SystemUnSet.c b/vendor/flecs/core/test/api/src/SystemUnSet.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/SystemUnSet.c
rename to vendor/flecs/core/test/api/src/SystemUnSet.c
diff --git a/fggl/ecs2/flecs/test/api/src/System_w_FromContainer.c b/vendor/flecs/core/test/api/src/System_w_FromContainer.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/System_w_FromContainer.c
rename to vendor/flecs/core/test/api/src/System_w_FromContainer.c
diff --git a/fggl/ecs2/flecs/test/api/src/System_w_FromEntity.c b/vendor/flecs/core/test/api/src/System_w_FromEntity.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/System_w_FromEntity.c
rename to vendor/flecs/core/test/api/src/System_w_FromEntity.c
diff --git a/fggl/ecs2/flecs/test/api/src/System_w_FromId.c b/vendor/flecs/core/test/api/src/System_w_FromId.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/System_w_FromId.c
rename to vendor/flecs/core/test/api/src/System_w_FromId.c
diff --git a/fggl/ecs2/flecs/test/api/src/System_w_FromSystem.c b/vendor/flecs/core/test/api/src/System_w_FromSystem.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/System_w_FromSystem.c
rename to vendor/flecs/core/test/api/src/System_w_FromSystem.c
diff --git a/fggl/ecs2/flecs/test/api/src/Tasks.c b/vendor/flecs/core/test/api/src/Tasks.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Tasks.c
rename to vendor/flecs/core/test/api/src/Tasks.c
diff --git a/fggl/ecs2/flecs/test/api/src/Timer.c b/vendor/flecs/core/test/api/src/Timer.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Timer.c
rename to vendor/flecs/core/test/api/src/Timer.c
diff --git a/fggl/ecs2/flecs/test/api/src/Trigger.c b/vendor/flecs/core/test/api/src/Trigger.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Trigger.c
rename to vendor/flecs/core/test/api/src/Trigger.c
diff --git a/fggl/ecs2/flecs/test/api/src/TriggerOnAdd.c b/vendor/flecs/core/test/api/src/TriggerOnAdd.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/TriggerOnAdd.c
rename to vendor/flecs/core/test/api/src/TriggerOnAdd.c
diff --git a/fggl/ecs2/flecs/test/api/src/TriggerOnRemove.c b/vendor/flecs/core/test/api/src/TriggerOnRemove.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/TriggerOnRemove.c
rename to vendor/flecs/core/test/api/src/TriggerOnRemove.c
diff --git a/fggl/ecs2/flecs/test/api/src/TriggerOnSet.c b/vendor/flecs/core/test/api/src/TriggerOnSet.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/TriggerOnSet.c
rename to vendor/flecs/core/test/api/src/TriggerOnSet.c
diff --git a/fggl/ecs2/flecs/test/api/src/Type.c b/vendor/flecs/core/test/api/src/Type.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/Type.c
rename to vendor/flecs/core/test/api/src/Type.c
diff --git a/fggl/ecs2/flecs/test/api/src/World.c b/vendor/flecs/core/test/api/src/World.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/World.c
rename to vendor/flecs/core/test/api/src/World.c
diff --git a/fggl/ecs2/flecs/test/api/src/main.c b/vendor/flecs/core/test/api/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/main.c
rename to vendor/flecs/core/test/api/src/main.c
diff --git a/fggl/ecs2/flecs/test/api/src/util.c b/vendor/flecs/core/test/api/src/util.c
similarity index 100%
rename from fggl/ecs2/flecs/test/api/src/util.c
rename to vendor/flecs/core/test/api/src/util.c
diff --git a/fggl/ecs2/flecs/test/bake_tests.bzl b/vendor/flecs/core/test/bake_tests.bzl
similarity index 100%
rename from fggl/ecs2/flecs/test/bake_tests.bzl
rename to vendor/flecs/core/test/bake_tests.bzl
diff --git a/fggl/ecs2/flecs/test/collections/.gitignore b/vendor/flecs/core/test/collections/.gitignore
similarity index 100%
rename from fggl/ecs2/flecs/test/collections/.gitignore
rename to vendor/flecs/core/test/collections/.gitignore
diff --git a/fggl/ecs2/flecs/test/collections/include/collections.h b/vendor/flecs/core/test/collections/include/collections.h
similarity index 100%
rename from fggl/ecs2/flecs/test/collections/include/collections.h
rename to vendor/flecs/core/test/collections/include/collections.h
diff --git a/fggl/ecs2/flecs/test/collections/include/collections/bake_config.h b/vendor/flecs/core/test/collections/include/collections/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/test/collections/include/collections/bake_config.h
rename to vendor/flecs/core/test/collections/include/collections/bake_config.h
diff --git a/fggl/ecs2/flecs/test/collections/project.json b/vendor/flecs/core/test/collections/project.json
similarity index 100%
rename from fggl/ecs2/flecs/test/collections/project.json
rename to vendor/flecs/core/test/collections/project.json
diff --git a/fggl/ecs2/flecs/test/collections/src/Map.c b/vendor/flecs/core/test/collections/src/Map.c
similarity index 100%
rename from fggl/ecs2/flecs/test/collections/src/Map.c
rename to vendor/flecs/core/test/collections/src/Map.c
diff --git a/fggl/ecs2/flecs/test/collections/src/Queue.c b/vendor/flecs/core/test/collections/src/Queue.c
similarity index 100%
rename from fggl/ecs2/flecs/test/collections/src/Queue.c
rename to vendor/flecs/core/test/collections/src/Queue.c
diff --git a/fggl/ecs2/flecs/test/collections/src/Sparse.c b/vendor/flecs/core/test/collections/src/Sparse.c
similarity index 100%
rename from fggl/ecs2/flecs/test/collections/src/Sparse.c
rename to vendor/flecs/core/test/collections/src/Sparse.c
diff --git a/fggl/ecs2/flecs/test/collections/src/Strbuf.c b/vendor/flecs/core/test/collections/src/Strbuf.c
similarity index 100%
rename from fggl/ecs2/flecs/test/collections/src/Strbuf.c
rename to vendor/flecs/core/test/collections/src/Strbuf.c
diff --git a/fggl/ecs2/flecs/test/collections/src/Vector.c b/vendor/flecs/core/test/collections/src/Vector.c
similarity index 100%
rename from fggl/ecs2/flecs/test/collections/src/Vector.c
rename to vendor/flecs/core/test/collections/src/Vector.c
diff --git a/fggl/ecs2/flecs/test/collections/src/main.c b/vendor/flecs/core/test/collections/src/main.c
similarity index 100%
rename from fggl/ecs2/flecs/test/collections/src/main.c
rename to vendor/flecs/core/test/collections/src/main.c
diff --git a/fggl/ecs2/flecs/test/cpp_api/include/cpp_api.h b/vendor/flecs/core/test/cpp_api/include/cpp_api.h
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/include/cpp_api.h
rename to vendor/flecs/core/test/cpp_api/include/cpp_api.h
diff --git a/fggl/ecs2/flecs/test/cpp_api/include/cpp_api/bake_config.h b/vendor/flecs/core/test/cpp_api/include/cpp_api/bake_config.h
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/include/cpp_api/bake_config.h
rename to vendor/flecs/core/test/cpp_api/include/cpp_api/bake_config.h
diff --git a/fggl/ecs2/flecs/test/cpp_api/project.json b/vendor/flecs/core/test/cpp_api/project.json
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/project.json
rename to vendor/flecs/core/test/cpp_api/project.json
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/ComponentLifecycle.cpp b/vendor/flecs/core/test/cpp_api/src/ComponentLifecycle.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/ComponentLifecycle.cpp
rename to vendor/flecs/core/test/cpp_api/src/ComponentLifecycle.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/Entity.cpp b/vendor/flecs/core/test/cpp_api/src/Entity.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/Entity.cpp
rename to vendor/flecs/core/test/cpp_api/src/Entity.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/Filter.cpp b/vendor/flecs/core/test/cpp_api/src/Filter.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/Filter.cpp
rename to vendor/flecs/core/test/cpp_api/src/Filter.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/FilterBuilder.cpp b/vendor/flecs/core/test/cpp_api/src/FilterBuilder.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/FilterBuilder.cpp
rename to vendor/flecs/core/test/cpp_api/src/FilterBuilder.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/ImplicitComponents.cpp b/vendor/flecs/core/test/cpp_api/src/ImplicitComponents.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/ImplicitComponents.cpp
rename to vendor/flecs/core/test/cpp_api/src/ImplicitComponents.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/Misc.cpp b/vendor/flecs/core/test/cpp_api/src/Misc.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/Misc.cpp
rename to vendor/flecs/core/test/cpp_api/src/Misc.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/Module.cpp b/vendor/flecs/core/test/cpp_api/src/Module.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/Module.cpp
rename to vendor/flecs/core/test/cpp_api/src/Module.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/Observer.cpp b/vendor/flecs/core/test/cpp_api/src/Observer.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/Observer.cpp
rename to vendor/flecs/core/test/cpp_api/src/Observer.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/Pairs.cpp b/vendor/flecs/core/test/cpp_api/src/Pairs.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/Pairs.cpp
rename to vendor/flecs/core/test/cpp_api/src/Pairs.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/Paths.cpp b/vendor/flecs/core/test/cpp_api/src/Paths.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/Paths.cpp
rename to vendor/flecs/core/test/cpp_api/src/Paths.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/Query.cpp b/vendor/flecs/core/test/cpp_api/src/Query.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/Query.cpp
rename to vendor/flecs/core/test/cpp_api/src/Query.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/QueryBuilder.cpp b/vendor/flecs/core/test/cpp_api/src/QueryBuilder.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/QueryBuilder.cpp
rename to vendor/flecs/core/test/cpp_api/src/QueryBuilder.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/Refs.cpp b/vendor/flecs/core/test/cpp_api/src/Refs.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/Refs.cpp
rename to vendor/flecs/core/test/cpp_api/src/Refs.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/Singleton.cpp b/vendor/flecs/core/test/cpp_api/src/Singleton.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/Singleton.cpp
rename to vendor/flecs/core/test/cpp_api/src/Singleton.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/Snapshot.cpp b/vendor/flecs/core/test/cpp_api/src/Snapshot.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/Snapshot.cpp
rename to vendor/flecs/core/test/cpp_api/src/Snapshot.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/Switch.cpp b/vendor/flecs/core/test/cpp_api/src/Switch.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/Switch.cpp
rename to vendor/flecs/core/test/cpp_api/src/Switch.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/System.cpp b/vendor/flecs/core/test/cpp_api/src/System.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/System.cpp
rename to vendor/flecs/core/test/cpp_api/src/System.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/SystemBuilder.cpp b/vendor/flecs/core/test/cpp_api/src/SystemBuilder.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/SystemBuilder.cpp
rename to vendor/flecs/core/test/cpp_api/src/SystemBuilder.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/Trigger.cpp b/vendor/flecs/core/test/cpp_api/src/Trigger.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/Trigger.cpp
rename to vendor/flecs/core/test/cpp_api/src/Trigger.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/Type.cpp b/vendor/flecs/core/test/cpp_api/src/Type.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/Type.cpp
rename to vendor/flecs/core/test/cpp_api/src/Type.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/World.cpp b/vendor/flecs/core/test/cpp_api/src/World.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/World.cpp
rename to vendor/flecs/core/test/cpp_api/src/World.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/WorldFactory.cpp b/vendor/flecs/core/test/cpp_api/src/WorldFactory.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/WorldFactory.cpp
rename to vendor/flecs/core/test/cpp_api/src/WorldFactory.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/main.cpp b/vendor/flecs/core/test/cpp_api/src/main.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/main.cpp
rename to vendor/flecs/core/test/cpp_api/src/main.cpp
diff --git a/fggl/ecs2/flecs/test/cpp_api/src/util.cpp b/vendor/flecs/core/test/cpp_api/src/util.cpp
similarity index 100%
rename from fggl/ecs2/flecs/test/cpp_api/src/util.cpp
rename to vendor/flecs/core/test/cpp_api/src/util.cpp
diff --git a/vendor/flecs/modules/include/flecs_components_http.h b/vendor/flecs/modules/include/flecs_components_http.h
new file mode 100644
index 0000000000000000000000000000000000000000..7d502320ad2c099aaeee214aaabf923e39385f4d
--- /dev/null
+++ b/vendor/flecs/modules/include/flecs_components_http.h
@@ -0,0 +1,129 @@
+#define flecs_components_http_STATIC
+#ifndef FLECS_COMPONENTS_HTTP_H
+#define FLECS_COMPONENTS_HTTP_H
+
+/*
+ )
+ (.)
+ .|.
+ | |
+ _.--| |--._
+ .-'; ;`-'& ; `&.
+ \ & ; & &_/
+ |"""---...---"""|
+ \ | | | | | | | /
+ `---.|.|.|.---'
+
+ * This file is generated by bake.lang.c for your convenience. Headers of
+ * dependencies will automatically show up in this file. Include bake_config.h
+ * in your main project file. Do not edit! */
+
+#ifndef FLECS_COMPONENTS_HTTP_BAKE_CONFIG_H
+#define FLECS_COMPONENTS_HTTP_BAKE_CONFIG_H
+
+/* Headers of public dependencies */
+#include <flecs.h>
+#include <flecs_meta.h>
+
+/* Convenience macro for exporting symbols */
+#ifndef flecs_components_http_STATIC
+#if flecs_components_http_EXPORTS && (defined(_MSC_VER) || defined(__MINGW32__))
+ #define FLECS_COMPONENTS_HTTP_API __declspec(dllexport)
+#elif flecs_components_http_EXPORTS
+ #define FLECS_COMPONENTS_HTTP_API __attribute__((__visibility__("default")))
+#elif defined _MSC_VER
+ #define FLECS_COMPONENTS_HTTP_API __declspec(dllimport)
+#else
+ #define FLECS_COMPONENTS_HTTP_API
+#endif
+#else
+ #define FLECS_COMPONENTS_HTTP_API
+#endif
+
+#endif
+
+
+struct EcsHttpEndpoint;
+struct EcsHttpRequest;
+struct EcsHttpReply;
+
+typedef bool (*EcsHttpServiceAction)(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ struct EcsHttpEndpoint *endpoint,
+ struct EcsHttpRequest *request,
+ struct EcsHttpReply *reply);
+
+#ifndef FLECS_LEGACY
+
+ECS_ENUM(EcsHttpMethod, {
+ EcsHttpGet,
+ EcsHttpPost,
+ EcsHttpPut,
+ EcsHttpDelete,
+ EcsHttpMethodUnknown
+})
+
+ECS_STRUCT(EcsHttpRequest, {
+ const char *url;
+ const char *relative_url;
+ const char *params;
+ void *ctx;
+ EcsHttpMethod method;
+ ecs_entity_t server;
+})
+
+ECS_STRUCT(EcsHttpReply, {
+ char *header;
+ char *body;
+ int status;
+ bool is_file;
+})
+
+
+ECS_STRUCT(EcsHttpServer, {
+ uint16_t port;
+})
+
+ECS_STRUCT(EcsHttpEndpoint, {
+ const char *url;
+ void *ctx;
+ bool synchronous;
+
+ECS_PRIVATE
+ EcsHttpServiceAction action;
+})
+
+#endif
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct FlecsComponentsHttp {
+ ECS_DECLARE_COMPONENT(EcsHttpServer);
+ ECS_DECLARE_COMPONENT(EcsHttpEndpoint);
+} FlecsComponentsHttp;
+
+FLECS_COMPONENTS_HTTP_API
+void FlecsComponentsHttpImport(
+ ecs_world_t *world);
+
+/* Utility to get parameter from query string */
+FLECS_COMPONENTS_HTTP_API
+size_t ecs_http_get_query_param(
+ const char *query,
+ const char *name,
+ char *buffer,
+ size_t len);
+
+#define FlecsComponentsHttpImportHandles(handles)\
+ ECS_IMPORT_COMPONENT(handles, EcsHttpServer);\
+ ECS_IMPORT_COMPONENT(handles, EcsHttpEndpoint);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/vendor/flecs/modules/include/flecs_dash.h b/vendor/flecs/modules/include/flecs_dash.h
new file mode 100644
index 0000000000000000000000000000000000000000..a770f9d66c695d1e5ae79b7b14bd85e2d07cdc10
--- /dev/null
+++ b/vendor/flecs/modules/include/flecs_dash.h
@@ -0,0 +1,158 @@
+#define flecs_dash_STATIC
+#ifndef FLECS_DASH_H
+#define FLECS_DASH_H
+
+/* This generated file contains includes for project dependencies */
+/*
+ )
+ (.)
+ .|.
+ | |
+ _.--| |--._
+ .-'; ;`-'& ; `&.
+ \ & ; & &_/
+ |"""---...---"""|
+ \ | | | | | | | /
+ `---.|.|.|.---'
+
+ * This file is generated by bake.lang.c for your convenience. Headers of
+ * dependencies will automatically show up in this file. Include bake_config.h
+ * in your main project file. Do not edit! */
+
+#ifndef FLECS_DASH_BAKE_CONFIG_H
+#define FLECS_DASH_BAKE_CONFIG_H
+
+/* Headers of public dependencies */
+#include <flecs.h>
+#include <flecs_meta.h>
+#include <flecs_player.h>
+#include <flecs_components_http.h>
+#include <flecs_rest.h>
+#include <flecs_monitor.h>
+
+/* Convenience macro for exporting symbols */
+#ifndef flecs_dash_STATIC
+#if flecs_dash_EXPORTS && (defined(_MSC_VER) || defined(__MINGW32__))
+ #define FLECS_DASH_API __declspec(dllexport)
+#elif flecs_dash_EXPORTS
+ #define FLECS_DASH_API __attribute__((__visibility__("default")))
+#elif defined _MSC_VER
+ #define FLECS_DASH_API __declspec(dllimport)
+#else
+ #define FLECS_DASH_API
+#endif
+#else
+ #define FLECS_DASH_API
+#endif
+
+#endif
+
+#ifndef FLECS_DASH_MONITOR_H
+#define FLECS_DASH_MONITOR_H
+
+/* This generated file contains includes for project dependencies */
+
+ECS_STRUCT(EcsFps, {
+ double value;
+ double count;
+ double target;
+});
+
+ECS_STRUCT(EcsTick, {
+ double count;
+});
+
+ECS_STRUCT(EcsLoad, {
+ double total_time_count;
+ double frame_time_count;
+ double system_time_count;
+ double merge_time_count;
+});
+
+ECS_STRUCT(EcsWorldClock, {
+ double world_time;
+ double world_time_raw;
+});
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct FlecsDashMonitor {
+ ECS_DECLARE_COMPONENT(EcsFps);
+} FlecsDashMonitor;
+
+FLECS_DASH_API
+void FlecsDashMonitorImport(
+ ecs_world_t *world);
+
+#define FlecsDashMonitorImportHandles(handles)\
+ ECS_IMPORT_COMPONENT(handles, EcsFps);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
+////////////////////////////////////////////////////////////////////////////////
+//// Module implementation
+////////////////////////////////////////////////////////////////////////////////
+
+ECS_STRUCT(EcsDashServer, {
+ int16_t port;
+});
+
+ECS_STRUCT(EcsDashApp, {
+ char *path;
+ char *icon;
+});
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct FlecsDash {
+ ECS_DECLARE_COMPONENT(EcsDashServer);
+ ECS_DECLARE_COMPONENT(EcsDashApp);
+} FlecsDash;
+
+FLECS_DASH_API
+void FlecsDashImport(
+ ecs_world_t *world);
+
+#define FlecsDashImportHandles(handles)\
+ ECS_IMPORT_COMPONENT(handles, EcsDashServer);\
+ ECS_IMPORT_COMPONENT(handles, EcsDashApp)
+
+#ifdef __cplusplus
+}
+#endif
+
+#ifdef __cplusplus
+#ifndef FLECS_NO_CPP
+
+namespace flecs {
+
+class dash : public FlecsDash {
+public:
+ using Server = EcsDashServer;
+ using App = EcsDashApp;
+
+ dash(flecs::world& world) {
+ FlecsDashImport(world.c_ptr());
+
+ flecs::module<flecs::dash>(world, "flecs::dash");
+
+ flecs::component<Server>(world, "flecs::dash::Server");
+ flecs::component<App>(world, "flecs::dash::App");
+ }
+};
+
+}
+
+#endif // FLECS_NO_CPP
+#endif // __cplusplus
+
+#endif
diff --git a/vendor/flecs/modules/include/flecs_json.h b/vendor/flecs/modules/include/flecs_json.h
new file mode 100644
index 0000000000000000000000000000000000000000..509dedfedfbc432f978bb6a77cf32c4e3176467a
--- /dev/null
+++ b/vendor/flecs/modules/include/flecs_json.h
@@ -0,0 +1,117 @@
+#define flecs_json_STATIC
+#ifndef FLECS_JSON_H
+#define FLECS_JSON_H
+
+/* This generated file contains includes for project dependencies */
+/*
+ )
+ (.)
+ .|.
+ | |
+ _.--| |--._
+ .-'; ;`-'& ; `&.
+ \ & ; & &_/
+ |"""---...---"""|
+ \ | | | | | | | /
+ `---.|.|.|.---'
+
+ * This file is generated by bake.lang.c for your convenience. Headers of
+ * dependencies will automatically show up in this file. Include bake_config.h
+ * in your main project file. Do not edit! */
+
+#ifndef FLECS_JSON_BAKE_CONFIG_H
+#define FLECS_JSON_BAKE_CONFIG_H
+
+/* Headers of public dependencies */
+#include <flecs.h>
+#include <flecs_meta.h>
+
+/* Convenience macro for exporting symbols */
+#ifndef flecs_json_STATIC
+#if flecs_json_EXPORTS && (defined(_MSC_VER) || defined(__MINGW32__))
+ #define FLECS_JSON_API __declspec(dllexport)
+#elif flecs_json_EXPORTS
+ #define FLECS_JSON_API __attribute__((__visibility__("default")))
+#elif defined _MSC_VER
+ #define FLECS_JSON_API __declspec(dllimport)
+#else
+ #define FLECS_JSON_API
+#endif
+#else
+ #define FLECS_JSON_API
+#endif
+
+#endif
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+FLECS_JSON_API
+char* ecs_ptr_to_json(
+ ecs_world_t *world,
+ ecs_entity_t type,
+ void *ptr);
+
+FLECS_JSON_API
+char* ecs_entity_to_json(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ ecs_type_t select);
+
+FLECS_JSON_API
+char* ecs_iter_to_json(
+ ecs_world_t *world,
+ ecs_iter_t *it,
+ ecs_iter_next_action_t iter_next,
+ ecs_type_t select);
+
+FLECS_JSON_API
+char* ecs_type_to_json(
+ ecs_world_t *world,
+ ecs_type_t type);
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#ifdef __cplusplus
+#ifndef FLECS_NO_CPP
+
+namespace flecs {
+
+template <typename T>
+std::string to_json(flecs::world& world, flecs::entity_t type, T& data) {
+ char *str = ecs_ptr_to_json(world.c_ptr(), type, &data);
+ std::string result = std::string(str);
+ free(str);
+ return result;
+}
+
+template <typename T>
+std::string to_json(flecs::world& world, flecs::entity type, T& data) {
+ return to_json(world, type.id(), data);
+}
+
+template <typename T>
+std::string to_json(flecs::world& world, T& data) {
+ entity_t type = _::component_info<T>::s_entity;
+ return flecs::to_json(world, type, data);
+}
+
+template <>
+inline std::string to_json<flecs::entity>(flecs::world& world, flecs::entity& entity) {
+ char *str = ecs_entity_to_json(world.c_ptr(), entity.id(), nullptr);
+ std::string result = std::string(str);
+ free(str);
+ return result;
+}
+
+}
+#endif
+#endif
+
+#endif
+
diff --git a/vendor/flecs/modules/include/flecs_meta.h b/vendor/flecs/modules/include/flecs_meta.h
new file mode 100644
index 0000000000000000000000000000000000000000..4d23e3a5f44c4beaabc16cecddfe598d2804e385
--- /dev/null
+++ b/vendor/flecs/modules/include/flecs_meta.h
@@ -0,0 +1,698 @@
+#define flecs_meta_STATIC
+#ifndef FLECS_META_H
+#define FLECS_META_H
+
+/* This generated file contains includes for project dependencies */
+/*
+ )
+ (.)
+ .|.
+ | |
+ _.--| |--._
+ .-'; ;`-'& ; `&.
+ \ & ; & &_/
+ |"""---...---"""|
+ \ | | | | | | | /
+ `---.|.|.|.---'
+
+ * This file is generated by bake.lang.c for your convenience. Headers of
+ * dependencies will automatically show up in this file. Include bake_config.h
+ * in your main project file. Do not edit! */
+
+#ifndef FLECS_META_BAKE_CONFIG_H
+#define FLECS_META_BAKE_CONFIG_H
+
+/* Headers of public dependencies */
+#include <flecs.h>
+
+/* Convenience macro for exporting symbols */
+#ifndef flecs_meta_STATIC
+#if flecs_meta_EXPORTS && (defined(_MSC_VER) || defined(__MINGW32__))
+ #define FLECS_META_API __declspec(dllexport)
+#elif flecs_meta_EXPORTS
+ #define FLECS_META_API __attribute__((__visibility__("default")))
+#elif defined _MSC_VER
+ #define FLECS_META_API __declspec(dllimport)
+#else
+ #define FLECS_META_API
+#endif
+#else
+ #define FLECS_META_API
+#endif
+
+#endif
+
+
+#ifndef FLECS_LEGACY
+////////////////////////////////////////////////////////////////////////////////
+//// Utility macro's (do not use in code!)
+////////////////////////////////////////////////////////////////////////////////
+
+#define ECS_ENUM_BOOTSTRAP(name, ...)\
+typedef enum name __VA_ARGS__ name;\
+ECS_UNUSED \
+static const char * __##name##__ = #__VA_ARGS__;
+
+#define ECS_STRUCT_IMPL(name, descriptor, ...)\
+typedef struct name __VA_ARGS__ name;\
+ECS_UNUSED \
+static EcsMetaType __##name##__ = {EcsStructType, sizeof(name), ECS_ALIGNOF(name), descriptor, NULL};
+
+#define ECS_ENUM_IMPL(name, descriptor, ...)\
+typedef enum name __VA_ARGS__ name;\
+ECS_UNUSED \
+static EcsMetaType __##name##__ = {EcsEnumType, sizeof(name), ECS_ALIGNOF(name), descriptor, NULL};
+
+#define ECS_BITMASK_IMPL(name, descriptor, ...)\
+typedef enum name __VA_ARGS__ name;\
+ECS_UNUSED \
+static EcsMetaType __##name##__ = {EcsBitmaskType, sizeof(name), ECS_ALIGNOF(name), descriptor, NULL};
+
+#define ECS_STRUCT_C(T, ...) ECS_STRUCT_IMPL(T, #__VA_ARGS__, __VA_ARGS__)
+#define ECS_ENUM_C(T, ...) ECS_ENUM_IMPL(T, #__VA_ARGS__, __VA_ARGS__)
+#define ECS_BITMASK_C(T, ...) ECS_BITMASK_IMPL(T, #__VA_ARGS__, __VA_ARGS__)
+
+#define ECS_ARRAY(name, T, length)\
+typedef T name[length];\
+ECS_UNUSED \
+static EcsMetaType __##name##__ = {EcsArrayType, sizeof(T) * length, ECS_ALIGNOF(T), "(" #T "," #length ")", NULL}
+
+#define ECS_VECTOR(name, T)\
+typedef ecs_vector_t *name;\
+ECS_UNUSED \
+static EcsMetaType __##name##__ = {EcsVectorType, sizeof(ecs_vector_t*), ECS_ALIGNOF(ecs_vector_t*), "(" #T ")", NULL}
+
+#define ECS_MAP(name, K, T)\
+typedef ecs_map_t *name;\
+ECS_UNUSED \
+static EcsMetaType __##name##__ = {EcsMapType, sizeof(ecs_map_t*), ECS_ALIGNOF(ecs_map_t*), "(" #K "," #T ")", NULL}
+
+#ifdef __cplusplus
+
+// Unspecialized class (see below)
+namespace flecs {
+template <typename T>
+class __meta__ { };
+}
+
+// Specialized C++ class that stores name and descriptor of type
+#define ECS_META_CPP(T, kind, descr)\
+namespace flecs {\
+template<>\
+class __meta__ <T> {\
+public:\
+ static const char* name() {\
+ return #T;\
+ }\
+ static EcsMetaType descriptor() {\
+ return {kind, sizeof(T), ECS_ALIGNOF(T), descr, NULL};\
+ }\
+};\
+}
+
+#endif
+
+
+////////////////////////////////////////////////////////////////////////////////
+//// Use these macro's to define types.
+//// The API will automatically select the right macro's for C or C++
+////////////////////////////////////////////////////////////////////////////////
+
+#ifdef __cplusplus
+
+// C++
+
+// Define a struct
+#define ECS_STRUCT(T, ...)\
+ ECS_STRUCT_IMPL(T, #__VA_ARGS__, __VA_ARGS__)\
+ ECS_META_CPP(T, EcsStructType, #__VA_ARGS__)
+
+// Define an enumeration
+#define ECS_ENUM(T, ...)\
+ ECS_ENUM_IMPL(T, #__VA_ARGS__, __VA_ARGS__)\
+ ECS_META_CPP(T, EcsEnumType, #__VA_ARGS__)
+
+// Define a bitmask
+#define ECS_BITMASK(T, ...)\
+ ECS_BITMASK_IMPL(T, #__VA_ARGS__, __VA_ARGS__)\
+ ECS_META_CPP(T, EcsBitmaskType, #__VA_ARGS__)
+
+#else
+
+// C
+
+// Define a struct
+#define ECS_STRUCT(name, ...)\
+ ECS_STRUCT_IMPL(name, #__VA_ARGS__, __VA_ARGS__)
+
+// Define an enumeration
+#define ECS_ENUM(name, ...)\
+ ECS_ENUM_IMPL(name, #__VA_ARGS__, __VA_ARGS__)
+
+// Define a bitmask
+#define ECS_BITMASK(name, ...)\
+ ECS_BITMASK_IMPL(name, #__VA_ARGS__, __VA_ARGS__)
+
+// Define a type alias
+#define ECS_ALIAS(type, name)\
+ typedef type name;\
+ ECS_UNUSED \
+ static EcsMetaType __##name##__ = {0, sizeof(name), ECS_ALIGNOF(name), NULL, &__##type##__};\
+
+#endif
+
+
+////////////////////////////////////////////////////////////////////////////////
+//// Use these macro's inside types
+////////////////////////////////////////////////////////////////////////////////
+
+// Define a vector
+#define ecs_vector(T) ecs_vector_t*
+
+// Define a map
+#define ecs_map(K, T) ecs_map_t*
+
+// Indicate that members after this should not be serialized
+#define ECS_PRIVATE
+
+
+////////////////////////////////////////////////////////////////////////////////
+//// Meta description types
+////////////////////////////////////////////////////////////////////////////////
+
+/* Explicit string type */
+typedef const char* ecs_string_t;
+
+/* Explicit byte type */
+typedef uint8_t ecs_byte_t;
+
+#ifdef __cplusplus
+
+namespace flecs {
+ using string_t = ecs_string_t;
+ using byte_t = ecs_byte_t;
+
+ // Define a bitmask
+ // In C++ trying to assign multiple flags to a variable of an enum type will
+ // result in a compiler error. Use this template so that the serializer knows
+ // this value is a bitmask, while also keeping the compiler happy.
+ template<typename T>
+ using bitmask = int32_t;
+}
+
+#endif
+
+ECS_ENUM_BOOTSTRAP( ecs_type_kind_t, {
+ EcsPrimitiveType,
+ EcsBitmaskType,
+ EcsEnumType,
+ EcsStructType,
+ EcsArrayType,
+ EcsVectorType,
+ EcsMapType
+})
+
+ECS_STRUCT( EcsMetaType, {
+ ecs_type_kind_t kind;
+ ecs_size_t size;
+ int16_t alignment;
+ const char *descriptor;
+ void *alias;
+})
+
+ECS_ENUM( ecs_primitive_kind_t, {
+ EcsBool,
+ EcsChar,
+ EcsByte,
+ EcsU8,
+ EcsU16,
+ EcsU32,
+ EcsU64,
+ EcsI8,
+ EcsI16,
+ EcsI32,
+ EcsI64,
+ EcsF32,
+ EcsF64,
+ EcsUPtr,
+ EcsIPtr,
+ EcsString,
+ EcsEntity
+})
+
+ECS_STRUCT( EcsPrimitive, {
+ ecs_primitive_kind_t kind;
+})
+
+// Define EcsBitmask for both C and C++. Both representations are equivalent in
+// memory, but allow for a nicer type-safe API in C++
+#if defined(__cplusplus) && !defined(FLECS_NO_CPP)
+ECS_STRUCT( EcsBitmask, {
+ flecs::map<int32_t, flecs::string_t> constants;
+})
+#else
+ECS_STRUCT( EcsBitmask, {
+ ecs_map(int32_t, ecs_string_t) constants;
+})
+#endif
+
+// Define EcsEnum for both C and C++. Both representations are equivalent in
+// memory, but allow for a nicer type-safe API in C++
+#if defined(__cplusplus) && !defined(FLECS_NO_CPP)
+ECS_STRUCT( EcsEnum, {
+ flecs::map<int32_t, flecs::string_t> constants;
+})
+#else
+ECS_STRUCT( EcsEnum, {
+ ecs_map(int32_t, ecs_string_t) constants;
+})
+#endif
+
+ECS_STRUCT( EcsMember, {
+ char *name;
+ ecs_entity_t type;
+})
+
+// Define EcsStruct for both C and C++. Both representations are equivalent in
+// memory, but allow for a nicer type-safe API in C++
+#if defined(__cplusplus) && !defined(FLECS_NO_CPP)
+ECS_STRUCT( EcsStruct, {
+ flecs::vector<EcsMember> members;
+ bool is_partial;
+})
+#else
+ECS_STRUCT( EcsStruct, {
+ ecs_vector(EcsMember) members;
+ bool is_partial;
+})
+#endif
+
+ECS_STRUCT( EcsArray, {
+ ecs_entity_t element_type;
+ int32_t count;
+})
+
+ECS_STRUCT( EcsVector, {
+ ecs_entity_t element_type;
+})
+
+ECS_STRUCT( EcsMap, {
+ ecs_entity_t key_type;
+ ecs_entity_t element_type;
+})
+
+
+////////////////////////////////////////////////////////////////////////////////
+//// Type serializer
+////////////////////////////////////////////////////////////////////////////////
+
+ECS_ENUM_C( ecs_type_op_kind_t, {
+ EcsOpHeader,
+ EcsOpPrimitive,
+ EcsOpEnum,
+ EcsOpBitmask,
+ EcsOpPush,
+ EcsOpPop,
+ EcsOpArray,
+ EcsOpVector,
+ EcsOpMap
+})
+
+typedef ecs_vector_t ecs_type_op_vector_t;
+typedef ecs_vector_t ecs_constant_vector_t;
+
+ECS_STRUCT_C( ecs_type_op_t, {
+ ecs_entity_t type;
+ ecs_type_op_kind_t kind;
+ ecs_size_t size; /* Size of value or element type if array or vector */
+ int16_t alignment; /* Alignment of value */
+ int32_t count; /* Number of array elements or struct members */
+ int32_t offset; /* Offset of value */
+ const char *name; /* Name of value (only used for struct members) */
+
+ECS_PRIVATE
+
+ /* Instruction-specific data */
+ union {
+ ecs_primitive_kind_t primitive;
+ ecs_ref_t constant;
+ ecs_ref_t collection;
+
+ struct {
+ ecs_ref_t key;
+ ecs_ref_t element;
+ } map;
+ } is;
+})
+
+ECS_STRUCT_C( EcsMetaTypeSerializer, {
+ ecs_vector(ecs_type_op_t) ops;
+})
+
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+////////////////////////////////////////////////////////////////////////////////
+//// Pretty printer
+////////////////////////////////////////////////////////////////////////////////
+
+/** Convert value to a string. */
+FLECS_META_API
+char* ecs_ptr_to_str(
+ ecs_world_t *world,
+ ecs_entity_t type,
+ void* ptr);
+
+/** Convert value to a string. */
+FLECS_META_API
+char* ecs_entity_to_str(
+ ecs_world_t *world,
+ ecs_entity_t entity);
+
+
+////////////////////////////////////////////////////////////////////////////////
+//// Serialization utilities
+////////////////////////////////////////////////////////////////////////////////
+
+#define ECS_MAX_I8 127
+#define ECS_MIN_I8 -128
+
+#define ECS_MAX_I16 32767
+#define ECS_MIN_I16 -32768
+
+#define ECS_MAX_I32 2147483647
+#define ECS_MIN_I32 -2147483648
+
+#define ECS_MAX_I64 9223372036854775807
+#define ECS_MIN_I64 (-9223372036854775807 - 1)
+
+#define ECS_MAX_U8 255u
+#define ECS_MAX_U16 65535u
+#define ECS_MAX_U32 4294967295u
+#define ECS_MAX_U64 18446744073709551615u
+
+#define ECS_MAX_I8_STR "127"
+#define ECS_MIN_I8_STR "-128"
+
+#define ECS_MAX_I16_STR "32767"
+#define ECS_MIN_I16_STR "-32768"
+
+#define ECS_MAX_I32_STR "2147483647"
+#define ECS_MIN_I32_STR "-2147483648"
+
+#define ECS_MAX_I64_STR "9223372036854775807"
+#define ECS_MIN_I64_STR "-9223372036854775808"
+
+#define ECS_MAX_U8_STR "255"
+#define ECS_MAX_U16_STR "65535"
+#define ECS_MAX_U32_STR "4294967295"
+#define ECS_MAX_U64_STR "18446744073709551615"
+
+/** Escape a character */
+FLECS_META_API
+char* ecs_chresc(
+ char *out,
+ char in,
+ char delimiter);
+
+/** Parse an escaped character */
+FLECS_META_API
+const char* ecs_chrparse(
+ const char *in,
+ char *out);
+
+/** Escape a string */
+FLECS_META_API
+ecs_size_t ecs_stresc(
+ char *out,
+ ecs_size_t n,
+ char delimiter,
+ const char *in);
+
+#ifdef __cplusplus
+}
+#endif
+
+
+////////////////////////////////////////////////////////////////////////////////
+//// Deserialization API
+////////////////////////////////////////////////////////////////////////////////
+
+#define ECS_META_MAX_SCOPE_DEPTH (32) /* >32 levels of nesting is not sane */
+
+typedef struct ecs_meta_scope_t {
+ ecs_entity_t type;
+ ecs_vector_t *ops;
+ int32_t start;
+ int32_t cur_op;
+ int32_t cur_elem;
+ int32_t count;
+ void *base;
+ ecs_vector_t *vector;
+ bool is_collection;
+} ecs_meta_scope_t;
+
+typedef struct ecs_meta_cursor_t {
+ const ecs_world_t *world;
+ ecs_meta_scope_t scope[ECS_META_MAX_SCOPE_DEPTH];
+ int32_t depth;
+} ecs_meta_cursor_t;
+
+FLECS_META_API
+ecs_meta_cursor_t ecs_meta_cursor(
+ const ecs_world_t *world,
+ ecs_entity_t type,
+ void *base);
+
+FLECS_META_API
+void* ecs_meta_get_ptr(
+ ecs_meta_cursor_t *cursor);
+
+FLECS_META_API
+int ecs_meta_next(
+ ecs_meta_cursor_t *cursor);
+
+FLECS_META_API
+int ecs_meta_move(
+ ecs_meta_cursor_t *cursor,
+ int32_t pos);
+
+FLECS_META_API
+int ecs_meta_move_name(
+ ecs_meta_cursor_t *cursor,
+ const char *name);
+
+FLECS_META_API
+int ecs_meta_push(
+ ecs_meta_cursor_t *cursor);
+
+FLECS_META_API
+int ecs_meta_pop(
+ ecs_meta_cursor_t *cursor);
+
+FLECS_META_API
+int ecs_meta_set_bool(
+ ecs_meta_cursor_t *cursor,
+ bool value);
+
+FLECS_META_API
+int ecs_meta_set_char(
+ ecs_meta_cursor_t *cursor,
+ char value);
+
+FLECS_META_API
+int ecs_meta_set_int(
+ ecs_meta_cursor_t *cursor,
+ int64_t value);
+
+FLECS_META_API
+int ecs_meta_set_uint(
+ ecs_meta_cursor_t *cursor,
+ uint64_t value);
+
+FLECS_META_API
+int ecs_meta_set_float(
+ ecs_meta_cursor_t *cursor,
+ double value);
+
+FLECS_META_API
+int ecs_meta_set_string(
+ ecs_meta_cursor_t *cursor,
+ const char *value);
+
+FLECS_META_API
+int ecs_meta_set_entity(
+ ecs_meta_cursor_t *cursor,
+ ecs_entity_t value);
+
+FLECS_META_API
+int ecs_meta_set_null(
+ ecs_meta_cursor_t *cursor);
+
+
+////////////////////////////////////////////////////////////////////////////////
+//// Module implementation
+////////////////////////////////////////////////////////////////////////////////
+
+typedef struct FlecsMeta {
+ ECS_DECLARE_COMPONENT(EcsPrimitive);
+ ECS_DECLARE_COMPONENT(EcsEnum);
+ ECS_DECLARE_COMPONENT(EcsBitmask);
+ ECS_DECLARE_COMPONENT(EcsStruct);
+ ECS_DECLARE_COMPONENT(EcsArray);
+ ECS_DECLARE_COMPONENT(EcsVector);
+ ECS_DECLARE_COMPONENT(EcsMap);
+ ECS_DECLARE_COMPONENT(EcsMetaType);
+ ECS_DECLARE_COMPONENT(EcsMetaTypeSerializer);
+} FlecsMeta;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+FLECS_META_API ECS_COMPONENT_EXTERN(EcsPrimitive);
+FLECS_META_API ECS_COMPONENT_EXTERN(EcsEnum);
+FLECS_META_API ECS_COMPONENT_EXTERN(EcsBitmask);
+FLECS_META_API ECS_COMPONENT_EXTERN(EcsMember);
+FLECS_META_API ECS_COMPONENT_EXTERN(EcsStruct);
+FLECS_META_API ECS_COMPONENT_EXTERN(EcsArray);
+FLECS_META_API ECS_COMPONENT_EXTERN(EcsVector);
+FLECS_META_API ECS_COMPONENT_EXTERN(EcsMap);
+FLECS_META_API ECS_COMPONENT_EXTERN(EcsMetaType);
+FLECS_META_API ECS_COMPONENT_EXTERN(ecs_type_op_kind_t);
+FLECS_META_API ECS_COMPONENT_EXTERN(ecs_type_op_t);
+FLECS_META_API ECS_COMPONENT_EXTERN(EcsMetaTypeSerializer);
+
+FLECS_META_API
+void FlecsMetaImport(
+ ecs_world_t *world);
+
+#define FlecsMetaImportHandles(handles)
+
+////////////////////////////////////////////////////////////////////////////////
+//// Macro for inserting metadata in C application
+////////////////////////////////////////////////////////////////////////////////
+
+FLECS_META_API
+void ecs_new_meta(
+ ecs_world_t *world,
+ ecs_entity_t component,
+ struct EcsMetaType *meta_type);
+
+#define ECS_META(world, T)\
+ ECS_COMPONENT(world, T);\
+ ecs_new_meta(world, ecs_entity(T), &__##T##__);
+
+/** Define a meta component, store in variable outside of the current scope.
+* Use this macro in a header when defining a component identifier globally.
+* Must be used together with ECS_COMPONENT_DECLARE.
+*/
+#define ECS_META_DEFINE(world, T)\
+ ECS_COMPONENT_DEFINE(world, T);\
+ ecs_new_meta(world, ecs_entity(T), &__##T##__);
+
+#ifdef __cplusplus
+}
+#endif
+
+
+////////////////////////////////////////////////////////////////////////////////
+//// C++ Module implementation
+////////////////////////////////////////////////////////////////////////////////
+
+#ifdef __cplusplus
+#ifndef FLECS_NO_CPP
+
+namespace flecs {
+namespace components {
+
+class meta {
+public:
+ using Primitive = EcsPrimitive;
+ using Enum = EcsEnum;
+ using Bitmask = EcsBitmask;
+ using Struct = EcsStruct;
+ using Array = EcsArray;
+ using Vector = EcsVector;
+ using Type = EcsMetaType;
+ using TypeSerializer = EcsMetaTypeSerializer;
+
+ enum TypeKind {
+ PrimitiveType = EcsPrimitiveType,
+ BitmaskType = EcsBitmaskType,
+ EnumType = EcsEnumType,
+ StructType = EcsStructType,
+ ArrayType = EcsArrayType,
+ VectorType = EcsVectorType,
+ MapType = EcsMapType
+ };
+
+ meta(flecs::world& world) {
+ FlecsMetaImport(world);
+
+ world.module<flecs::components::meta>("flecs::components::meta");
+
+ world.component<Primitive>("EcsPrimitive");
+ world.component<Enum>("EcsEnum");
+ world.component<Bitmask>("EcsBitmask");
+ world.component<Struct>("EcsStruct");
+ world.component<Array>("EcsArray");
+ world.component<Vector>("EcsVector");
+ world.component<Type>("EcsMetaType");
+ world.component<TypeSerializer>("EcsMetaTypeSerializer");
+ }
+};
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//// Functions for inserting metadata in C++ applications
+////////////////////////////////////////////////////////////////////////////////
+
+// Template that injects metadata into ECS
+template <typename T>
+flecs::entity meta(flecs::world& world) {
+ flecs::entity e = flecs::component<T>(world, flecs::__meta__<T>::name());
+ e.set<EcsMetaType>({ flecs::__meta__<T>::descriptor() });
+ return e;
+}
+
+
+////////////////////////////////////////////////////////////////////////////////
+//// Serialize values to string
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename T>
+flecs::string pretty_print(flecs::world& world, flecs::entity_t type, T& data) {
+ char *str = ecs_ptr_to_str(world.c_ptr(), type, &data);
+ flecs::string result = flecs::string(str);
+ return result;
+}
+
+template <typename T>
+flecs::string pretty_print(flecs::world& world, flecs::entity type, T& data) {
+ return pretty_print(world, type.id(), data);
+}
+
+template <typename T>
+flecs::string pretty_print(flecs::world& world, T& data) {
+ entity_t type = _::cpp_type<T>::id();
+ return flecs::pretty_print(world, type, data);
+}
+
+template <>
+inline flecs::string pretty_print<flecs::entity>(flecs::world& world, flecs::entity& entity) {
+ char *str = ecs_entity_to_str(world.c_ptr(), entity.id());
+ flecs::string result = flecs::string(str);
+ return result;
+}
+
+}
+
+#endif // FLECS_NO_CPP
+#endif // __cplusplus
+
+#endif // FLECS_META_H
diff --git a/vendor/flecs/modules/include/flecs_monitor.h b/vendor/flecs/modules/include/flecs_monitor.h
new file mode 100644
index 0000000000000000000000000000000000000000..bd5664c5cafb5ab6aeb1438110f15652d60588d3
--- /dev/null
+++ b/vendor/flecs/modules/include/flecs_monitor.h
@@ -0,0 +1,74 @@
+#define flecs_monitor_STATIC
+#ifndef FLECS_MONITOR_H
+#define FLECS_MONITOR_H
+
+/* This generated file contains includes for project dependencies */
+/*
+ )
+ (.)
+ .|.
+ | |
+ _.--| |--._
+ .-'; ;`-'& ; `&.
+ \ & ; & &_/
+ |"""---...---"""|
+ \ | | | | | | | /
+ `---.|.|.|.---'
+
+ * This file is generated by bake.lang.c for your convenience. Headers of
+ * dependencies will automatically show up in this file. Include bake_config.h
+ * in your main project file. Do not edit! */
+
+#ifndef FLECS_MONITOR_BAKE_CONFIG_H
+#define FLECS_MONITOR_BAKE_CONFIG_H
+
+/* Headers of public dependencies */
+#include <flecs.h>
+#include <flecs_meta.h>
+#include <flecs_components_http.h>
+
+/* Convenience macro for exporting symbols */
+#ifndef flecs_monitor_STATIC
+#if flecs_monitor_EXPORTS && (defined(_MSC_VER) || defined(__MINGW32__))
+ #define FLECS_MONITOR_API __declspec(dllexport)
+#elif flecs_monitor_EXPORTS
+ #define FLECS_MONITOR_API __attribute__((__visibility__("default")))
+#elif defined _MSC_VER
+ #define FLECS_MONITOR_API __declspec(dllimport)
+#else
+ #define FLECS_MONITOR_API
+#endif
+#else
+ #define FLECS_MONITOR_API
+#endif
+
+#endif
+
+
+#ifndef FLECS_LEGACY
+
+ECS_STRUCT(EcsMonitorServer, {
+ uint16_t port;
+})
+
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct FlecsMonitor {
+ ECS_DECLARE_COMPONENT(EcsMonitorServer);
+} FlecsMonitor;
+
+FLECS_MONITOR_API void FlecsMonitorImport(
+ ecs_world_t *world);
+
+#define FlecsMonitorImportHandles(handles) \
+ ECS_IMPORT_COMPONENT(handles, EcsMonitorServer);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/vendor/flecs/modules/include/flecs_player.h b/vendor/flecs/modules/include/flecs_player.h
new file mode 100644
index 0000000000000000000000000000000000000000..7dbd88fd5640b2c128381f86af2c34f4c1dc4d1c
--- /dev/null
+++ b/vendor/flecs/modules/include/flecs_player.h
@@ -0,0 +1,88 @@
+#define flecs_player_STATIC
+#ifndef FLECS_PLAYER_H
+#define FLECS_PLAYER_H
+
+/* This generated file contains includes for project dependencies */
+/*
+ )
+ (.)
+ .|.
+ | |
+ _.--| |--._
+ .-'; ;`-'& ; `&.
+ \ & ; & &_/
+ |"""---...---"""|
+ \ | | | | | | | /
+ `---.|.|.|.---'
+
+ * This file is generated by bake.lang.c for your convenience. Headers of
+ * dependencies will automatically show up in this file. Include bake_config.h
+ * in your main project file. Do not edit! */
+
+#ifndef FLECS_PLAYER_BAKE_CONFIG_H
+#define FLECS_PLAYER_BAKE_CONFIG_H
+
+/* Headers of public dependencies */
+#include <flecs.h>
+#include <flecs_meta.h>
+
+/* Convenience macro for exporting symbols */
+#ifndef flecs_player_STATIC
+#if flecs_player_EXPORTS && (defined(_MSC_VER) || defined(__MINGW32__))
+ #define FLECS_PLAYER_API __declspec(dllexport)
+#elif flecs_player_EXPORTS
+ #define FLECS_PLAYER_API __attribute__((__visibility__("default")))
+#elif defined _MSC_VER
+ #define FLECS_PLAYER_API __declspec(dllimport)
+#else
+ #define FLECS_PLAYER_API
+#endif
+#else
+ #define FLECS_PLAYER_API
+#endif
+
+#endif
+
+
+ECS_ENUM(EcsPlayerState, {
+ EcsPlayerPlay,
+ EcsPlayerPause,
+ EcsPlayerStop
+});
+
+ECS_STRUCT(EcsPlayer, {
+ EcsPlayerState state;
+ EcsPlayerState prev_state;
+ float time_scale;
+ ecs_entity_t play_pipeline;
+ ecs_entity_t stop_pipeline;
+
+ECS_PRIVATE
+ ecs_snapshot_t *snapshot;
+});
+
+ECS_STRUCT(EcsTargetFps, {
+ float target_fps;
+});
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct FlecsPlayer {
+ ECS_DECLARE_COMPONENT(EcsPlayer);
+} FlecsPlayer;
+
+FLECS_PLAYER_API
+void FlecsPlayerImport(
+ ecs_world_t *world);
+
+#define FlecsPlayerImportHandles(handles)\
+ ECS_IMPORT_COMPONENT(handles, EcsPlayer);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/vendor/flecs/modules/include/flecs_rest.h b/vendor/flecs/modules/include/flecs_rest.h
new file mode 100644
index 0000000000000000000000000000000000000000..4986f61ddf013b6b23d93a288e1f0352239631ff
--- /dev/null
+++ b/vendor/flecs/modules/include/flecs_rest.h
@@ -0,0 +1,99 @@
+#define flecs_rest_STATIC
+#ifndef FLECS_SYSTEMS_REST_H
+#define FLECS_SYSTEMS_REST_H
+
+/* This generated file contains includes for project dependencies */
+/*
+ )
+ (.)
+ .|.
+ | |
+ _.--| |--._
+ .-'; ;`-'& ; `&.
+ \ & ; & &_/
+ |"""---...---"""|
+ \ | | | | | | | /
+ `---.|.|.|.---'
+
+ * This file is generated by bake.lang.c for your convenience. Headers of
+ * dependencies will automatically show up in this file. Include bake_config.h
+ * in your main project file. Do not edit! */
+
+#ifndef FLECS_REST_BAKE_CONFIG_H
+#define FLECS_REST_BAKE_CONFIG_H
+
+/* Headers of public dependencies */
+#include <flecs.h>
+#include <flecs_components_http.h>
+#include <flecs_meta.h>
+#include <flecs_json.h>
+
+/* Convenience macro for exporting symbols */
+#ifndef flecs_rest_STATIC
+#if flecs_rest_EXPORTS && (defined(_MSC_VER) || defined(__MINGW32__))
+ #define FLECS_REST_API __declspec(dllexport)
+#elif flecs_rest_EXPORTS
+ #define FLECS_REST_API __attribute__((__visibility__("default")))
+#elif defined _MSC_VER
+ #define FLECS_REST_API __declspec(dllimport)
+#else
+ #define FLECS_REST_API
+#endif
+#else
+ #define FLECS_REST_API
+#endif
+
+#endif
+
+
+#ifndef FLECS_LEGACY
+
+ECS_STRUCT(EcsRestServer, {
+ int16_t port;
+});
+
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct FlecsRest {
+ ECS_DECLARE_COMPONENT(EcsRestServer);
+} FlecsRest;
+
+FLECS_REST_API
+void FlecsRestImport(
+ ecs_world_t *world);
+
+#define FlecsRestImportHandles(handles) \
+ ECS_IMPORT_COMPONENT(handles, EcsRestServer);
+
+#ifdef __cplusplus
+}
+#endif
+
+#ifdef __cplusplus
+#ifndef FLECS_NO_CPP
+
+namespace flecs {
+
+class rest : public FlecsRest {
+public:
+ using Server = EcsRestServer;
+
+ rest(flecs::world& world) {
+ FlecsRestImport(world.c_ptr());
+
+ flecs::module<flecs::rest>(world, "flecs::rest");
+
+ flecs::component<Server>(world, "Server");
+ }
+};
+
+}
+
+#endif // FLECS_NO_CPP
+#endif // __cplusplus
+
+#endif
diff --git a/vendor/flecs/modules/include/flecs_systems_civetweb.h b/vendor/flecs/modules/include/flecs_systems_civetweb.h
new file mode 100644
index 0000000000000000000000000000000000000000..70361fa2408aadd5925b17cbde5c798d7728f304
--- /dev/null
+++ b/vendor/flecs/modules/include/flecs_systems_civetweb.h
@@ -0,0 +1,88 @@
+#define flecs_systems_civetweb_STATIC
+#ifndef FLECS_SYSTEMS_CIVETWEB_H
+#define FLECS_SYSTEMS_CIVETWEB_H
+
+/*
+ )
+ (.)
+ .|.
+ | |
+ _.--| |--._
+ .-'; ;`-'& ; `&.
+ \ & ; & &_/
+ |"""---...---"""|
+ \ | | | | | | | /
+ `---.|.|.|.---'
+
+ * This file is generated by bake.lang.c for your convenience. Headers of
+ * dependencies will automatically show up in this file. Include bake_config.h
+ * in your main project file. Do not edit! */
+
+#ifndef FLECS_SYSTEMS_CIVETWEB_BAKE_CONFIG_H
+#define FLECS_SYSTEMS_CIVETWEB_BAKE_CONFIG_H
+
+/* Headers of public dependencies */
+#include <flecs.h>
+#include <flecs_components_http.h>
+
+/* Convenience macro for exporting symbols */
+#ifndef flecs_systems_civetweb_STATIC
+#if flecs_systems_civetweb_EXPORTS && (defined(_MSC_VER) || defined(__MINGW32__))
+ #define FLECS_SYSTEMS_CIVETWEB_API __declspec(dllexport)
+#elif flecs_systems_civetweb_EXPORTS
+ #define FLECS_SYSTEMS_CIVETWEB_API __attribute__((__visibility__("default")))
+#elif defined _MSC_VER
+ #define FLECS_SYSTEMS_CIVETWEB_API __declspec(dllimport)
+#else
+ #define FLECS_SYSTEMS_CIVETWEB_API
+#endif
+#else
+ #define FLECS_SYSTEMS_CIVETWEB_API
+#endif
+
+#endif
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct FlecsSystemsCivetweb {
+ ECS_DECLARE_ENTITY(CivetServer);
+} FlecsSystemsCivetweb;
+
+FLECS_SYSTEMS_CIVETWEB_API
+void FlecsSystemsCivetwebImport(
+ ecs_world_t *world);
+
+#define FlecsSystemsCivetwebImportHandles(handles)\
+ ECS_IMPORT_ENTITY(handles, CivetServer);
+
+#ifdef __cplusplus
+}
+#endif
+
+#ifdef __cplusplus
+#ifndef FLECS_NO_CPP
+
+namespace flecs {
+namespace systems {
+
+class civetweb : public FlecsSystemsCivetweb {
+public:
+
+ civetweb(flecs::world& world) {
+ FlecsSystemsCivetwebImport(world.c_ptr());
+
+ flecs::module<flecs::systems::civetweb>(
+ world, "flecs::systems::civetweb");
+ }
+};
+
+}
+}
+
+#endif // FLECS_NO_CPP
+#endif // __cplusplus
+
+#endif
diff --git a/vendor/flecs/modules/src/flecs_components_http.c b/vendor/flecs/modules/src/flecs_components_http.c
new file mode 100644
index 0000000000000000000000000000000000000000..095bf90b89340f6c606cd4bd56a1fb0f5dd00d15
--- /dev/null
+++ b/vendor/flecs/modules/src/flecs_components_http.c
@@ -0,0 +1,142 @@
+#ifndef FLECS_COMPONENTS_HTTP_IMPL
+#include "flecs_components_http.h"
+#endif
+
+static
+void decode(
+ char *str)
+{
+ char ch, *ptr, *dst = str;
+
+ for (ptr = str; (ch = *ptr); ptr++) {
+ if (ch == '%') {
+ if (ptr[1] == '2') {
+ if (ptr[2] == '0') {
+ dst[0] = ' ';
+ } else
+ if (ptr[2] == '1') {
+ dst[0] = '!';
+ } else
+ if (ptr[2] == '2') {
+ dst[0] = '"';
+ } else
+ if (ptr[2] == '3') {
+ dst[0] = '#';
+ } else
+ if (ptr[2] == '4') {
+ dst[0] = '$';
+ } else
+ if (ptr[2] == '5') {
+ dst[0] = '%';
+ } else
+ if (ptr[2] == '6') {
+ dst[0] = '&';
+ } else
+ if (ptr[2] == '7') {
+ dst[0] = '\'';
+ } else
+ if (ptr[2] == '8') {
+ dst[0] = '(';
+ } else
+ if (ptr[2] == '9') {
+ dst[0] = ')';
+ } else
+ if (ptr[2] == 'A') {
+ dst[0] = '*';
+ } else
+ if (ptr[2] == 'B') {
+ dst[0] = '+';
+ } else
+ if (ptr[2] == 'C') {
+ dst[0] = ',';
+ } else
+ if (ptr[2] == 'D') {
+ dst[0] = '-';
+ } else
+ if (ptr[2] == 'E') {
+ dst[0] = '.';
+ } else
+ if (ptr[2] == 'F') {
+ dst[0] = '/';
+ }
+
+ dst ++;
+ ptr += 2;
+ }
+ } else {
+ dst[0] = ptr[0];
+ dst ++;
+ }
+ }
+
+ dst[0] = '\0';
+}
+
+size_t ecs_http_get_query_param(
+ const char *query,
+ const char *name,
+ char *buffer,
+ size_t len)
+{
+ if (!query) {
+ return 0;
+ }
+
+ const char *cur, *start = query, *value = NULL;
+ char ch;
+ int arg_len = strlen(name);
+
+ for (cur = query; (ch = *cur); cur ++) {
+ if (ch == '=') {
+ if (cur - start >= 256) {
+ /* Ignore, key is too long */
+ } else {
+ int32_t key_len = cur - start;
+ cur ++;
+ value = cur;
+ while ((ch = *cur) && ch != '&') {
+ cur ++;
+ }
+
+ if (!ch || ch == '&') {
+ /* Check if requested key matches */
+ if (arg_len == key_len && !strncmp(name, start, key_len)) {
+ size_t size;
+ if (cur - value < (int32_t)len) {
+ size = cur - value;
+ } else {
+ size = len - 1;
+ }
+
+ memcpy(buffer, value, size);
+ buffer[size] = '\0';
+
+ decode(buffer);
+
+ return cur - value;
+ }
+ }
+
+ start = cur + 1;
+ }
+ }
+ }
+
+ return 0;
+}
+
+void FlecsComponentsHttpImport(
+ ecs_world_t *world)
+{
+ ECS_MODULE(world, FlecsComponentsHttp);
+
+ ECS_IMPORT(world, FlecsMeta);
+
+ ecs_set_name_prefix(world, "EcsHttp");
+
+ ECS_META(world, EcsHttpServer);
+ ECS_META(world, EcsHttpEndpoint);
+
+ ECS_SET_COMPONENT(EcsHttpServer);
+ ECS_SET_COMPONENT(EcsHttpEndpoint);
+}
diff --git a/vendor/flecs/modules/src/flecs_dash.c b/vendor/flecs/modules/src/flecs_dash.c
new file mode 100644
index 0000000000000000000000000000000000000000..583371ab8d43327b11bd254752f0a256938f5196
--- /dev/null
+++ b/vendor/flecs/modules/src/flecs_dash.c
@@ -0,0 +1,271 @@
+#ifndef FLECS_DASH_IMPL
+#include "flecs_dash.h"
+#endif
+
+
+static
+void EcsUpdateFps(ecs_iter_t *it) {
+ ecs_world_t *world = it->world;
+
+ EcsFps *world_fps = ecs_column(it, EcsFps, 1);
+
+ const ecs_world_info_t *info = ecs_get_world_info(world);
+ world_fps->value = 1.0 / info->delta_time_raw;
+ world_fps->count += world_fps->value;
+ world_fps->target = info->target_fps;
+}
+
+static
+void EcsUpdateLoad(ecs_iter_t *it) {
+ ecs_world_t *world = it->world;
+
+ EcsLoad *world_load = ecs_column(it, EcsLoad, 1);
+
+ const ecs_world_info_t *info = ecs_get_world_info(world);
+
+ world_load->total_time_count += info->delta_time_raw;
+ world_load->frame_time_count = info->frame_time_total;
+ world_load->system_time_count = info->system_time_total;
+ world_load->merge_time_count = info->merge_time_total;
+}
+
+static
+void EcsUpdateTick(ecs_iter_t *it) {
+ ecs_world_t *world = it->world;
+
+ EcsTick *world_tick = ecs_column(it, EcsTick, 1);
+
+ const ecs_world_info_t *info = ecs_get_world_info(world);
+ world_tick->count = info->frame_count_total;
+}
+
+static
+void EcsUpdateClock(ecs_iter_t *it) {
+ ecs_world_t *world = it->world;
+
+ EcsWorldClock *world_clock = ecs_column(it, EcsWorldClock, 1);
+
+ const ecs_world_info_t *info = ecs_get_world_info(world);
+ world_clock->world_time = info->world_time_total;
+ world_clock->world_time_raw = 0;
+}
+
+void FlecsDashMonitorImport(
+ ecs_world_t *world)
+{
+ ECS_MODULE(world, FlecsDashMonitor);
+
+ ECS_IMPORT(world, FlecsMeta);
+
+ ecs_set_name_prefix(world, "Ecs");
+
+ ECS_META(world, EcsFps);
+ ECS_META(world, EcsLoad);
+ ECS_META(world, EcsTick);
+ ECS_META(world, EcsWorldClock);
+
+ /* System for keeping track of world stats */
+ ecs_set(world, EcsWorld, EcsFps, {0});
+ ECS_SYSTEM(world, EcsUpdateFps, EcsOnLoad, flecs.core.World:Fps);
+
+ ecs_set(world, EcsWorld, EcsLoad, {0});
+ ECS_SYSTEM(world, EcsUpdateLoad, EcsOnLoad, flecs.core.World:Load);
+
+ ecs_set(world, EcsWorld, EcsTick, {0});
+ ECS_SYSTEM(world, EcsUpdateTick, EcsOnLoad, flecs.core.World:Tick);
+
+ ecs_set(world, EcsWorld, EcsWorldClock, {0});
+ ECS_SYSTEM(world, EcsUpdateClock, EcsOnLoad, flecs.core.World:WorldClock);
+}
+
+static
+bool request_this(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ EcsHttpEndpoint *endpoint,
+ EcsHttpRequest *request,
+ EcsHttpReply *reply)
+{
+ ecs_entity_t server = ecs_get_parent_w_entity(world, entity, 0);
+ if (server) {
+ ecs_strbuf_t buf = ECS_STRBUF_INIT;
+ char *path = ecs_get_fullpath(world, server);
+ ecs_strbuf_append(&buf, "{\"server_id\":\"%s\"}", path);
+ ecs_os_free(path);
+ reply->body = ecs_strbuf_get(&buf);
+ return true;
+ } else {
+ reply->body = ecs_os_strdup("{\"server_id\":\"unknown\"}");
+ return false;
+ }
+}
+
+static
+bool request_files(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ EcsHttpEndpoint *endpoint,
+ EcsHttpRequest *request,
+ EcsHttpReply *reply)
+{
+ const char *file = request->relative_url;
+ char path[1024];
+
+ if (!file || !strlen(file)) {
+ file = "index.html";
+ }
+
+ char *etc_path = ecs_os_module_to_etc("flecs.dash");
+
+ sprintf(path, "%s/%s", etc_path, file);
+
+ FILE *f = fopen(path, "r");
+ if (!f) {
+ return false;
+ } else {
+ fclose(f);
+ }
+
+ reply->body = ecs_os_strdup(path);
+ reply->is_file = true;
+
+ ecs_os_free(etc_path);
+
+ return true;
+}
+
+static
+bool request_player(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ EcsHttpEndpoint *endpoint,
+ EcsHttpRequest *request,
+ EcsHttpReply *reply)
+{
+ const char *cmd = request->relative_url;
+
+ ecs_entity_t ecs_typeid(EcsPlayer) = ecs_lookup_fullpath(
+ world, "flecs.player.Player");
+
+ if (ecs_typeid(EcsPlayer)) {
+ EcsPlayer *player = ecs_get_mut(world, EcsWorld, EcsPlayer, NULL);
+
+ if (!strcmp(cmd, "play")) {
+ player->state = EcsPlayerPlay;
+ } else if (!strcmp(cmd, "pause")) {
+ player->state = EcsPlayerPause;
+ } else if (!strcmp(cmd, "stop")) {
+ player->state = EcsPlayerStop;
+ }
+
+ ecs_modified(world, EcsWorld, EcsPlayer);
+ }
+
+ return true;
+}
+
+static
+void RunServer(ecs_iter_t *it) {
+ ecs_world_t *world = it->world;
+
+ EcsDashServer *server = ecs_column(it, EcsDashServer, 1);
+
+ ecs_entity_t ecs_typeid(EcsHttpEndpoint) = ecs_column_entity(it, 2);
+ ecs_entity_t ecs_typeid(EcsRestServer) = ecs_column_entity(it, 3);
+ ecs_entity_t ecs_typeid(EcsMonitorServer) = ecs_column_entity(it, 4);
+ ecs_entity_t ecs_typeid(EcsDashApp) = ecs_column_entity(it, 5);
+ ecs_entity_t EcsDashInitialized = ecs_column_entity(it, 6);
+
+ int32_t i;
+ for (i = 0; i < it->count; i ++) {
+ ecs_entity_t e = it->entities[i];
+ EcsDashServer *s = &server[i];
+
+ /* Create REST & monitor server */
+ ecs_set(world, e, EcsRestServer, {.port = s->port});
+ ecs_set(world, e, EcsMonitorServer, {.port = s->port});
+
+ if (ecs_has_entity(world, e, EcsDashInitialized)) {
+ /* Don't add endpoints again if already initialized */
+ continue;
+ }
+
+ /* Add endpoint to server for serving up files */
+ ecs_entity_t e_files = ecs_new_w_entity(world, ECS_CHILDOF | e);
+ ecs_set(world, e_files, EcsName, {"e_files"});
+ ecs_set(world, e_files, EcsHttpEndpoint, {
+ .url = "",
+ .action = request_files});
+
+ /* Add endpoint to server that returns entity id of server */
+ ecs_entity_t e_this = ecs_new_w_entity(world, ECS_CHILDOF | e);
+ ecs_set(world, e_this, EcsName, {"e_this"});
+ ecs_set(world, e_this, EcsHttpEndpoint, {
+ .url = "this",
+ .action = request_this});
+
+ /* Add endpoint to server that returns entity id of server */
+ ecs_entity_t e_player = ecs_new_w_entity(world, ECS_CHILDOF | e);
+ ecs_set(world, e_player, EcsName, {"e_player"});
+ ecs_set(world, e_player, EcsHttpEndpoint, {
+ .url = "player",
+ .action = request_player,
+ .synchronous = true});
+
+ /* Add browser app */
+ ecs_entity_t dash_overview = ecs_new_w_entity(world, ECS_CHILDOF | e);
+ ecs_set(world, dash_overview, EcsName, {"overview"});
+ ecs_set(world, dash_overview, EcsDashApp, {
+ .path = "etc/apps/overview",
+ .icon = "images/usage.png"
+ });
+
+ ecs_entity_t dash_systems = ecs_new_w_entity(world, ECS_CHILDOF | e);
+ ecs_set(world, dash_systems, EcsName, {"systems"});
+ ecs_set(world, dash_systems, EcsDashApp, {
+ .path = "etc/apps/systems",
+ .icon = "images/layers.png"
+ });
+
+ ecs_entity_t dash_browser = ecs_new_w_entity(world, ECS_CHILDOF | e);
+ ecs_set(world, dash_browser, EcsName, {"browser"});
+ ecs_set(world, dash_browser, EcsDashApp, {
+ .path = "etc/apps/browser",
+ .icon = "images/tree.png"
+ });
+
+ /* Prevent initializing the server again */
+ ecs_add_entity(world, e, EcsDashInitialized);
+ }
+}
+
+void FlecsDashImport(
+ ecs_world_t *world)
+{
+ ECS_MODULE(world, FlecsDash);
+
+ ECS_IMPORT(world, FlecsMonitor);
+ ECS_IMPORT(world, FlecsDashMonitor);
+
+ ECS_IMPORT(world, FlecsMeta);
+ ECS_IMPORT(world, FlecsPlayer);
+ ECS_IMPORT(world, FlecsComponentsHttp);
+ ECS_IMPORT(world, FlecsRest);
+
+ ecs_set_name_prefix(world, "EcsDash");
+
+ ECS_META(world, EcsDashServer);
+ ECS_META(world, EcsDashApp);
+
+ ECS_TAG(world, EcsDashInitialized);
+
+ ECS_SYSTEM(world, RunServer, EcsOnSet, Server,
+ :flecs.components.http.Endpoint,
+ :flecs.rest.Server,
+ :flecs.monitor.Server,
+ :App,
+ :Initialized);
+
+ ECS_EXPORT_COMPONENT(EcsDashServer);
+ ECS_EXPORT_COMPONENT(EcsDashApp);
+}
diff --git a/vendor/flecs/modules/src/flecs_json.c b/vendor/flecs/modules/src/flecs_json.c
new file mode 100644
index 0000000000000000000000000000000000000000..dda6f02590a5250851998ec1da75fc52c044c74a
--- /dev/null
+++ b/vendor/flecs/modules/src/flecs_json.c
@@ -0,0 +1,575 @@
+#ifndef FLECS_JSON_IMPL
+#include "flecs_json.h"
+#endif
+
+/* Simple serializer to turn values into strings. Use this code as a template
+ * for when implementing a new serializer. */
+
+static
+void json_ser_type(
+ ecs_world_t *world,
+ ecs_vector_t *ser,
+ const void *base,
+ ecs_strbuf_t *str);
+
+static
+void json_ser_type_op(
+ ecs_world_t *world,
+ ecs_type_op_t *op,
+ const void *base,
+ ecs_strbuf_t *str);
+
+/* Serialize a primitive value */
+static
+void json_ser_primitive(
+ ecs_world_t *world,
+ ecs_type_op_t *op,
+ const void *base,
+ ecs_strbuf_t *str)
+{
+ const char *bool_str[] = { "false", "true" };
+
+ switch(op->is.primitive) {
+ case EcsBool:
+ ecs_strbuf_appendstr(str, bool_str[(int)*(bool*)base]);
+ break;
+ case EcsChar:
+ ecs_strbuf_appendstrn(str, "\"", 1);
+ ecs_strbuf_appendstrn(str, (char*)base, 1);
+ ecs_strbuf_appendstrn(str, "\"", 1);
+ break;
+ case EcsByte:
+ ecs_strbuf_append(str, "%u", *(uint8_t*)base);
+ break;
+ case EcsU8:
+ ecs_strbuf_append(str, "%u", *(uint8_t*)base);
+ break;
+ case EcsU16:
+ ecs_strbuf_append(str, "%u", *(uint16_t*)base);
+ break;
+ case EcsU32:
+ ecs_strbuf_append(str, "%u", *(uint32_t*)base);
+ break;
+ case EcsU64:
+ ecs_strbuf_append(str, "%u", *(uint64_t*)base);
+ break;
+ case EcsI8:
+ ecs_strbuf_append(str, "%d", *(int8_t*)base);
+ break;
+ case EcsI16:
+ ecs_strbuf_append(str, "%d", *(int16_t*)base);
+ break;
+ case EcsI32:
+ ecs_strbuf_append(str, "%d", *(int32_t*)base);
+ break;
+ case EcsI64:
+ ecs_strbuf_append(str, "%d", *(int64_t*)base);
+ break;
+ case EcsF32:
+ ecs_strbuf_append(str, "%f", *(float*)base);
+ break;
+ case EcsF64:
+ ecs_strbuf_append(str, "%f", *(double*)base);
+ break;
+ case EcsIPtr:
+ ecs_strbuf_append(str, "%i", *(intptr_t*)base);
+ break;
+ case EcsUPtr:
+ ecs_strbuf_append(str, "%u", *(uintptr_t*)base);
+ break;
+ case EcsString: {
+ char *value = *(char**)base;
+ if (value) {
+ ecs_strbuf_appendstrn(str, "\"", 1);
+ ecs_strbuf_appendstr(str, value);
+ ecs_strbuf_appendstrn(str, "\"", 1);
+ } else {
+ ecs_strbuf_appendstr(str, "null");
+ }
+ break;
+ }
+ case EcsEntity:
+ ecs_strbuf_appendstrn(str, "\"", 1);
+ ecs_strbuf_appendstr(str, ecs_get_name(world, *(ecs_entity_t*)base));
+ ecs_strbuf_appendstrn(str, "\"", 1);
+ break;
+ }
+}
+
+/* Serialize enumeration */
+static
+void json_ser_enum(
+ ecs_world_t *world,
+ ecs_type_op_t *op,
+ const void *base,
+ ecs_strbuf_t *str)
+{
+ const EcsEnum *enum_type = ecs_get_ref_w_entity(world, &op->is.constant, 0, 0);
+ ecs_assert(enum_type != NULL, ECS_INVALID_PARAMETER, NULL);
+
+ int32_t value = *(int32_t*)base;
+
+ /* Enumeration constants are stored in a map that is keyed on the
+ * enumeration value. */
+ char **constant = ecs_map_get(enum_type->constants, char*, value);
+ ecs_assert(constant != NULL, ECS_INVALID_PARAMETER, NULL);
+
+ ecs_strbuf_appendstrn(str, "\"", 1);
+ ecs_strbuf_appendstr(str, *constant);
+ ecs_strbuf_appendstrn(str, "\"", 1);
+}
+
+/* Serialize bitmask */
+static
+void json_ser_bitmask(
+ ecs_world_t *world,
+ ecs_type_op_t *op,
+ const void *base,
+ ecs_strbuf_t *str)
+{
+ const EcsBitmask *bitmask_type = ecs_get_ref_w_entity(world, &op->is.constant, 0, 0);
+ ecs_assert(bitmask_type != NULL, ECS_INVALID_PARAMETER, NULL);
+
+ int32_t value = *(int32_t*)base;
+ ecs_map_key_t key;
+ char **constant;
+
+ ecs_strbuf_list_push(str, "[", ",");
+
+ /* Multiple flags can be set at a given time. Iterate through all the flags
+ * and append the ones that are set. */
+ ecs_map_iter_t it = ecs_map_iter(bitmask_type->constants);
+ while ((constant = ecs_map_next(&it, char*, &key))) {
+ if ((value & key) == key) {
+ ecs_strbuf_list_append(str, "\"%s\"", *constant);
+ }
+ }
+
+ ecs_strbuf_list_pop(str, "]");
+}
+
+/* Serialize elements of a contiguous array */
+static
+void json_ser_elements(
+ ecs_world_t *world,
+ ecs_vector_t *elem_ops,
+ const void *base,
+ int32_t elem_count,
+ int32_t elem_size,
+ ecs_strbuf_t *str)
+{
+ ecs_strbuf_list_push(str, "[", ",");
+
+ const void *ptr = base;
+
+ int i;
+ for (i = 0; i < elem_count; i ++) {
+ ecs_strbuf_list_next(str);
+ json_ser_type(world, elem_ops, ptr, str);
+ ptr = ECS_OFFSET(ptr, elem_size);
+ }
+
+ ecs_strbuf_list_pop(str, "]");
+}
+
+/* Serialize array */
+static
+void json_ser_array(
+ ecs_world_t *world,
+ ecs_type_op_t *op,
+ void *base,
+ ecs_strbuf_t *str)
+{
+ const EcsMetaTypeSerializer *ser = ecs_get_ref_w_entity(world, &op->is.collection, 0, 0);
+ ecs_assert(ser != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ json_ser_elements(world, ser->ops, base, op->count, op->size, str);
+}
+
+/* Serialize vector */
+static
+void json_ser_vector(
+ ecs_world_t *world,
+ ecs_type_op_t *op,
+ const void *base,
+ ecs_strbuf_t *str)
+{
+ ecs_vector_t *value = *(ecs_vector_t**)base;
+
+ int32_t count = ecs_vector_count(value);
+ void *array = ecs_vector_first_t(value, op->size, op->alignment);
+
+ const EcsMetaTypeSerializer *ser = ecs_get_ref_w_entity(world, &op->is.collection, 0, 0);
+ ecs_assert(ser != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ ecs_vector_t *elem_ops = ser->ops;
+
+ ecs_type_op_t *elem_op_hdr = (ecs_type_op_t*)ecs_vector_first(elem_ops, ecs_type_op_t);
+ ecs_assert(elem_op_hdr != NULL, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(elem_op_hdr->kind == EcsOpHeader, ECS_INTERNAL_ERROR, NULL);
+ size_t elem_size = elem_op_hdr->size;
+
+ /* Serialize contiguous buffer of vector */
+ json_ser_elements(world, elem_ops, array, count, elem_size, str);
+}
+
+/* Serialize map */
+static
+void json_ser_map(
+ ecs_world_t *world,
+ ecs_type_op_t *op,
+ const void *base,
+ ecs_strbuf_t *str)
+{
+ ecs_map_t *value = *(ecs_map_t**)base;
+
+ const EcsMetaTypeSerializer *key_ser = ecs_get_ref_w_entity(world, &op->is.map.key, 0, 0);
+ ecs_assert(key_ser != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ const EcsMetaTypeSerializer *elem_ser = ecs_get_ref_w_entity(world, &op->is.map.element, 0, 0);
+ ecs_assert(elem_ser != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ /* 2 instructions, one for the header */
+ ecs_assert(ecs_vector_count(key_ser->ops) == 2, ECS_INTERNAL_ERROR, NULL);
+
+ ecs_type_op_t *key_op = ecs_vector_first(key_ser->ops, ecs_type_op_t);
+ ecs_assert(key_op->kind == EcsOpHeader, ECS_INTERNAL_ERROR, NULL);
+ key_op = &key_op[1];
+
+ ecs_map_iter_t it = ecs_map_iter(value);
+ ecs_map_key_t key;
+ void *ptr;
+
+ ecs_strbuf_list_push(str, "{", ",");
+
+ while ((ptr = _ecs_map_next(&it, 0, &key))) {
+ ecs_strbuf_list_next(str);
+ ecs_strbuf_appendstrn(str, "\"", 1);
+ json_ser_type_op(world, key_op, (void*)&key, str);
+ ecs_strbuf_appendstrn(str, "\"", 1);
+ ecs_strbuf_appendstr(str, ":");
+ json_ser_type(world, elem_ser->ops, ptr, str);
+
+ key = 0;
+ }
+
+ ecs_strbuf_list_pop(str, "}");
+}
+
+/* Forward serialization to the different type kinds */
+static
+void json_ser_type_op(
+ ecs_world_t *world,
+ ecs_type_op_t *op,
+ const void *base,
+ ecs_strbuf_t *str)
+{
+ switch(op->kind) {
+ case EcsOpHeader:
+ case EcsOpPush:
+ case EcsOpPop:
+ /* Should not be parsed as single op */
+ ecs_abort(ECS_INVALID_PARAMETER, NULL);
+ break;
+ case EcsOpPrimitive:
+ json_ser_primitive(world, op, ECS_OFFSET(base, op->offset), str);
+ break;
+ case EcsOpEnum:
+ json_ser_enum(world, op, ECS_OFFSET(base, op->offset), str);
+ break;
+ case EcsOpBitmask:
+ json_ser_bitmask(world, op, ECS_OFFSET(base, op->offset), str);
+ break;
+ case EcsOpArray:
+ json_ser_array(world, op, ECS_OFFSET(base, op->offset), str);
+ break;
+ case EcsOpVector:
+ json_ser_vector(world, op, ECS_OFFSET(base, op->offset), str);
+ break;
+ case EcsOpMap:
+ json_ser_map(world, op, ECS_OFFSET(base, op->offset), str);
+ break;
+ }
+}
+
+/* Iterate over the type ops of a type */
+static
+void json_ser_type(
+ ecs_world_t *world,
+ ecs_vector_t *ser,
+ const void *base,
+ ecs_strbuf_t *str)
+{
+ ecs_type_op_t *ops = (ecs_type_op_t*)ecs_vector_first(ser, ecs_type_op_t);
+ int32_t count = ecs_vector_count(ser);
+
+ for (int i = 0; i < count; i ++) {
+ ecs_type_op_t *op = &ops[i];
+
+ if (op->name) {
+ if (op->kind != EcsOpHeader) {
+ ecs_strbuf_list_next(str);
+ }
+
+ ecs_strbuf_append(str, "\"%s\":", op->name);
+ }
+
+ switch(op->kind) {
+ case EcsOpHeader:
+ break;
+ case EcsOpPush:
+ ecs_strbuf_list_push(str, "{", ",");
+ break;
+ case EcsOpPop:
+ ecs_strbuf_list_pop(str, "}");
+ break;
+ default:
+ json_ser_type_op(world, op, base, str);
+ break;
+ }
+ }
+}
+
+char* ecs_ptr_to_json(
+ ecs_world_t *world,
+ ecs_entity_t type,
+ void* ptr)
+{
+ ecs_entity_t ecs_typeid(EcsMetaTypeSerializer) = ecs_lookup(world, "EcsMetaTypeSerializer");
+ const EcsMetaTypeSerializer *ser = ecs_get(world, type, EcsMetaTypeSerializer);
+ ecs_assert(ser != NULL, ECS_INVALID_PARAMETER, NULL);
+
+ ecs_strbuf_t str = ECS_STRBUF_INIT;
+ json_ser_type(world, ser->ops, ptr, &str);
+ return ecs_strbuf_get(&str);
+}
+
+void json_ser_column(
+ ecs_world_t *world,
+ const EcsMetaTypeSerializer *ser,
+ void *ptr,
+ int32_t count,
+ ecs_strbuf_t *str)
+{
+ ecs_vector_t *ops = ser->ops;
+ ecs_type_op_t *hdr = ecs_vector_first(ops, ecs_type_op_t);
+ ecs_assert(hdr->kind == EcsOpHeader, ECS_INTERNAL_ERROR, NULL);
+ int32_t size = hdr->size;
+
+ ecs_strbuf_list_push(str, "[", ",");
+
+ int i;
+ for (i = 0; i < count; i ++) {
+ ecs_strbuf_list_next(str);
+ json_ser_type(world, ops, ptr, str);
+ ptr = ECS_OFFSET(ptr, size);
+ }
+
+ ecs_strbuf_list_pop(str, "]");
+}
+
+static
+void serialize_type(
+ ecs_world_t *world,
+ ecs_type_t type,
+ ecs_strbuf_t *str)
+{
+ ecs_strbuf_list_push(str, "[", ",");
+
+ int i, count = ecs_vector_count(type);
+ ecs_entity_t *comps = ecs_vector_first(type, ecs_entity_t);
+ for (i = 0; i < count; i ++) {
+ ecs_entity_t comp = comps[i];
+ bool has_role = (comp & ECS_COMPONENT_MASK) != comp;
+ ecs_entity_t comp_e = comp & ECS_COMPONENT_MASK;
+
+ if (has_role) {
+ ecs_strbuf_list_next(str);
+ ecs_strbuf_list_push(str, "[", ",");
+ ecs_strbuf_list_append(str, "\"%s\"", ecs_role_str(comp));
+ }
+
+ if (ECS_HAS_ROLE(comp, TRAIT)) {
+ ecs_entity_t hi = ecs_entity_t_hi(comp_e);
+ char *hi_path = ecs_get_fullpath(world, hi);
+ ecs_strbuf_list_append(str, "\"%s\"", hi_path);
+ ecs_os_free(hi_path);
+ comp_e = ecs_entity_t_lo(comp_e);
+ }
+
+ char *comp_path = ecs_get_fullpath(world, comp_e);
+ if (comp_path) {
+ ecs_strbuf_list_append(str, "\"%s\"", comp_path);
+ } else {
+ ecs_strbuf_list_append(str, "%d", (int32_t)comp);
+ }
+
+ if (has_role) {
+ ecs_strbuf_list_pop(str, "]");
+ }
+
+ ecs_os_free(comp_path);
+ }
+
+ ecs_strbuf_list_pop(str, "]");
+}
+
+char* ecs_type_to_json(
+ ecs_world_t *world,
+ ecs_type_t type)
+{
+ ecs_strbuf_t str = ECS_STRBUF_INIT;
+ serialize_type(world, type, &str);
+ return ecs_strbuf_get(&str);
+}
+
+char* ecs_iter_to_json(
+ ecs_world_t *world,
+ ecs_iter_t *it,
+ ecs_iter_next_action_t iter_next,
+ ecs_type_t select)
+{
+ ecs_strbuf_t str = ECS_STRBUF_INIT;
+ ecs_entity_t ecs_typeid(EcsMetaTypeSerializer) =
+ ecs_lookup_fullpath(world, "flecs.meta.MetaTypeSerializer");
+ ecs_assert(ecs_typeid(EcsMetaTypeSerializer) != 0, ECS_INTERNAL_ERROR, NULL);
+
+ ecs_strbuf_list_push(&str, "[", ",");
+
+ while (iter_next(it)) {
+ ecs_type_t table_type = ecs_iter_type(it);
+ ecs_id_t *comps = ecs_vector_first(table_type, ecs_id_t);
+ int32_t i, count = ecs_vector_count(table_type);
+
+ if (!it->count) {
+ continue;
+ }
+
+ ecs_strbuf_list_next(&str);
+ ecs_strbuf_list_push(&str, "{", ",");
+
+ /* Serialize type */
+ ecs_strbuf_list_appendstr(&str, "\"type\":");
+ serialize_type(world, table_type, &str);
+
+ /* Add entity identifiers */
+ ecs_strbuf_list_appendstr(&str, "\"entities\":");
+ ecs_strbuf_list_push(&str, "[", ",");
+ for (i = 0; i < it->count; i ++) {
+ ecs_strbuf_list_append(&str, "%d", (int32_t)it->entities[i]);
+ }
+ ecs_strbuf_list_pop(&str, "]");
+
+ /* Serialize data */
+ ecs_strbuf_list_appendstr(&str, "\"data\":");
+ ecs_strbuf_list_push(&str, "{", ",");
+
+ for (i = 0; i < count; i ++) {
+ ecs_id_t id = comps[i];
+ ecs_entity_t type_id = ecs_get_typeid(world, id);
+
+ if (!type_id) {
+ continue;
+ }
+
+ if (select) {
+ if (!ecs_type_has_entity(world, select, comps[i])) {
+ continue;
+ }
+ }
+ const EcsMetaTypeSerializer *ser = ecs_get(
+ world, type_id, EcsMetaTypeSerializer);
+
+ /* Don't serialize if there's no metadata for component */
+ if (!ser) {
+ continue;
+ }
+
+ char comp_path[1024];
+ ecs_id_str(world, id, comp_path, 1024);
+ ecs_strbuf_list_append(&str, "\"%s\":", comp_path);
+
+ json_ser_column(
+ world, ser, ecs_table_column(it, i), it->count, &str);
+ }
+
+ ecs_strbuf_list_pop(&str, "}");
+ ecs_strbuf_list_pop(&str, "}");
+ }
+
+ ecs_strbuf_list_pop(&str, "]");
+
+ return ecs_strbuf_get(&str);
+}
+
+char* ecs_entity_to_json(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ ecs_type_t select)
+{
+ ecs_strbuf_t str = ECS_STRBUF_INIT;
+ ecs_entity_t ecs_typeid(EcsMetaTypeSerializer) =
+ ecs_lookup_fullpath(world, "flecs.meta.MetaTypeSerializer");
+ ecs_assert(ecs_typeid(EcsMetaTypeSerializer) != 0, ECS_INTERNAL_ERROR, NULL);
+
+ ecs_strbuf_list_push(&str, "{", ",");
+
+ /* Serialize type */
+ ecs_type_t type = ecs_get_type(world, entity);
+ ecs_strbuf_list_appendstr(&str, "\"type\":");
+ serialize_type(world, type, &str);
+
+ /* Serialize entity id */
+ ecs_strbuf_list_append(&str, "\"entity\":%d", (int32_t)entity);
+
+ /* Serialize entity path */
+ char *path = ecs_get_fullpath(world, entity);
+ ecs_strbuf_list_append(&str, "\"path\":\"%s\"", path);
+ ecs_os_free(path);
+
+ /* Serialize data */
+ if (type) {
+ ecs_strbuf_list_appendstr(&str, "\"data\":");
+ ecs_strbuf_list_push(&str, "{", ",");
+
+ int i, count = ecs_vector_count(type);
+ ecs_id_t *comps = ecs_vector_first(type, ecs_id_t);
+ for (i = 0; i < count; i ++) {
+ ecs_id_t id = comps[i];
+ ecs_entity_t type_id = ecs_get_typeid(world, id);
+
+ if (!type_id) {
+ continue;
+ }
+
+ if (select) {
+ if (!ecs_type_has_entity(world, select, id)) {
+ continue;
+ }
+ }
+
+ const EcsMetaTypeSerializer *ser = ecs_get(
+ world, type_id, EcsMetaTypeSerializer);
+
+ /* Don't serialize if there's no metadata for component */
+ if (!ser) {
+ continue;
+ }
+
+ char comp_path[1024];
+ ecs_id_str(world, id, comp_path, 1024);
+ ecs_strbuf_list_append(&str, "\"%s\":", comp_path);
+
+ const void *comp_ptr = ecs_get_w_entity(world, entity, id);
+ ecs_assert(comp_ptr != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ json_ser_type(world, ser->ops, comp_ptr, &str);
+ }
+
+ ecs_strbuf_list_pop(&str, "}");
+ }
+
+ ecs_strbuf_list_pop(&str, "}");
+
+ return ecs_strbuf_get(&str);
+}
\ No newline at end of file
diff --git a/vendor/flecs/modules/src/flecs_meta.c b/vendor/flecs/modules/src/flecs_meta.c
new file mode 100644
index 0000000000000000000000000000000000000000..0de7656c3d0a5e2fde5abc6a15569762f6eaabe1
--- /dev/null
+++ b/vendor/flecs/modules/src/flecs_meta.c
@@ -0,0 +1,3044 @@
+#ifndef FLECS_META_IMPL
+#include "flecs_meta.h"
+#endif
+#ifndef FLECS_META_PARSER_H
+#define FLECS_META_PARSER_H
+
+
+#define ECS_META_IDENTIFIER_LENGTH (256)
+
+#define ecs_meta_error(ctx, ptr, ...)\
+ ecs_parser_error((ctx)->name, (ctx)->decl, ptr - (ctx)->decl, __VA_ARGS__)
+
+typedef char ecs_meta_token_t[ECS_META_IDENTIFIER_LENGTH];
+
+typedef struct ecs_meta_parse_ctx_t {
+ const char *name;
+ const char *decl;
+} ecs_meta_parse_ctx_t;
+
+typedef struct ecs_meta_type_t {
+ ecs_meta_token_t type;
+ ecs_meta_token_t params;
+ bool is_const;
+ bool is_ptr;
+} ecs_meta_type_t;
+
+typedef struct ecs_meta_member_t {
+ ecs_meta_type_t type;
+ ecs_meta_token_t name;
+ int64_t count;
+ bool is_partial;
+} ecs_meta_member_t;
+
+typedef struct ecs_meta_constant_t {
+ ecs_meta_token_t name;
+ int64_t value;
+ bool is_value_set;
+} ecs_meta_constant_t;
+
+typedef struct ecs_meta_params_t {
+ ecs_meta_type_t key_type;
+ ecs_meta_type_t type;
+ int64_t count;
+ bool is_key_value;
+ bool is_fixed_size;
+} ecs_meta_params_t;
+
+const char* ecs_meta_parse_constant(
+ const char *ptr,
+ ecs_meta_constant_t *token_out,
+ ecs_meta_parse_ctx_t *ctx);
+
+const char* ecs_meta_parse_member(
+ const char *ptr,
+ ecs_meta_member_t *token_out,
+ ecs_meta_parse_ctx_t *ctx);
+
+void ecs_meta_parse_params(
+ const char *ptr,
+ ecs_meta_params_t *token_out,
+ ecs_meta_parse_ctx_t *ctx);
+
+#endif
+#ifndef FLECS_META_SERIALIZER_H
+#define FLECS_META_SERIALIZER_H
+
+
+void EcsAddStruct(
+ ecs_iter_t *it);
+
+void EcsSetPrimitive(
+ ecs_iter_t *it);
+
+void EcsSetEnum(
+ ecs_iter_t *it);
+
+void EcsSetBitmask(
+ ecs_iter_t *it);
+
+void EcsSetStruct(
+ ecs_iter_t *it);
+
+void EcsSetArray(
+ ecs_iter_t *it);
+
+void EcsSetVector(
+ ecs_iter_t *it);
+
+void EcsSetMap(
+ ecs_iter_t *it);
+
+#endif
+
+static
+ecs_vector_t* serialize_type(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ ecs_vector_t *ops,
+ int32_t offset);
+
+static
+ecs_size_t ecs_get_primitive_size(
+ ecs_primitive_kind_t kind)
+{
+ switch(kind) {
+ case EcsBool: return sizeof(bool);
+ case EcsChar: return sizeof(char);
+ case EcsByte: return sizeof(char);
+ case EcsU8: return sizeof(uint8_t);
+ case EcsU16: return sizeof(uint16_t);
+ case EcsU32: return sizeof(uint32_t);
+ case EcsU64: return sizeof(uint64_t);
+ case EcsI8: return sizeof(int8_t);
+ case EcsI16: return sizeof(int16_t);
+ case EcsI32: return sizeof(int32_t);
+ case EcsI64: return sizeof(int64_t);
+ case EcsF32: return sizeof(float);
+ case EcsF64: return sizeof(double);
+ case EcsIPtr: return sizeof(intptr_t);
+ case EcsUPtr: return sizeof(uintptr_t);
+ case EcsString: return sizeof(char*);
+ case EcsEntity: return sizeof(ecs_entity_t);
+ default:
+ ecs_abort(ECS_INTERNAL_ERROR, NULL);
+ }
+}
+
+static
+int16_t ecs_get_primitive_alignment(
+ ecs_primitive_kind_t kind)
+{
+ switch(kind) {
+ case EcsBool: return ECS_ALIGNOF(bool);
+ case EcsChar: return ECS_ALIGNOF(char);
+ case EcsByte: return ECS_ALIGNOF(char);
+ case EcsU8: return ECS_ALIGNOF(uint8_t);
+ case EcsU16: return ECS_ALIGNOF(uint16_t);
+ case EcsU32: return ECS_ALIGNOF(uint32_t);
+ case EcsU64: return ECS_ALIGNOF(uint64_t);
+ case EcsI8: return ECS_ALIGNOF(int8_t);
+ case EcsI16: return ECS_ALIGNOF(int16_t);
+ case EcsI32: return ECS_ALIGNOF(int32_t);
+ case EcsI64: return ECS_ALIGNOF(int64_t);
+ case EcsF32: return ECS_ALIGNOF(float);
+ case EcsF64: return ECS_ALIGNOF(double);
+ case EcsIPtr: return ECS_ALIGNOF(intptr_t);
+ case EcsUPtr: return ECS_ALIGNOF(uintptr_t);
+ case EcsString: return ECS_ALIGNOF(char*);
+ case EcsEntity: return ECS_ALIGNOF(ecs_entity_t);
+ default:
+ ecs_abort(ECS_INTERNAL_ERROR, NULL);
+ }
+}
+
+static
+ecs_vector_t* serialize_primitive(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ const EcsPrimitive *type,
+ ecs_vector_t *ops)
+{
+ (void)world;
+ (void)entity;
+
+ ecs_type_op_t *op;
+ if (!ops) {
+ op = ecs_vector_add(&ops, ecs_type_op_t);
+ *op = (ecs_type_op_t) {
+ .kind = EcsOpHeader,
+ .size = ecs_get_primitive_size(type->kind),
+ .alignment = ecs_get_primitive_alignment(type->kind)
+ };
+ }
+
+ op = ecs_vector_add(&ops, ecs_type_op_t);
+
+ *op = (ecs_type_op_t) {
+ .kind = EcsOpPrimitive,
+ .size = ecs_get_primitive_size(type->kind),
+ .alignment = ecs_get_primitive_alignment(type->kind),
+ .count = 1,
+ .is.primitive = type->kind
+ };
+
+ return ops;
+}
+
+static
+ecs_vector_t* serialize_enum(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ const EcsEnum *type,
+ ecs_vector_t *ops)
+{
+ (void)type;
+
+ ecs_type_op_t *op;
+ if (!ops) {
+ op = ecs_vector_add(&ops, ecs_type_op_t);
+ *op = (ecs_type_op_t) {
+ .kind = EcsOpHeader,
+ .size = sizeof(int32_t),
+ .alignment = ECS_ALIGNOF(int32_t)
+ };
+ }
+
+ op = ecs_vector_add(&ops, ecs_type_op_t);
+
+ ecs_ref_t ref = {0};
+ ecs_get_ref(world, &ref, entity, EcsEnum);
+
+ *op = (ecs_type_op_t) {
+ .kind = EcsOpEnum,
+ .size = sizeof(int32_t),
+ .alignment = ECS_ALIGNOF(int32_t),
+ .count = 1,
+ .is.constant = ref
+ };
+
+ return ops;
+}
+
+static
+ecs_vector_t* serialize_bitmask(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ const EcsBitmask *type,
+ ecs_vector_t *ops)
+{
+ (void)type;
+
+ ecs_type_op_t *op;
+ if (!ops) {
+ op = ecs_vector_add(&ops, ecs_type_op_t);
+ *op = (ecs_type_op_t) {
+ .kind = EcsOpHeader,
+ .size = sizeof(int32_t),
+ .alignment = ECS_ALIGNOF(int32_t)
+ };
+ }
+
+ op = ecs_vector_add(&ops, ecs_type_op_t);
+
+ ecs_ref_t ref = {0};
+ ecs_get_ref(world, &ref, entity, EcsBitmask);
+
+ *op = (ecs_type_op_t) {
+ .kind = EcsOpBitmask,
+ .size = sizeof(int32_t),
+ .alignment = ECS_ALIGNOF(int32_t),
+ .count = 1,
+ .is.constant = ref
+ };
+
+ return ops;
+}
+
+static
+ecs_vector_t* serialize_struct(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ const EcsStruct *type,
+ ecs_vector_t *ops,
+ int32_t offset)
+{
+ ecs_type_op_t *op_header = NULL;
+ if (!ops) {
+ op_header = ecs_vector_add(&ops, ecs_type_op_t);
+ }
+
+ int32_t push_op = ecs_vector_count(ops);
+
+ ecs_type_op_t *op = ecs_vector_add(&ops, ecs_type_op_t);
+ *op = (ecs_type_op_t) {
+ .kind = EcsOpPush
+ };
+
+ ecs_size_t size = 0;
+ int16_t alignment = 0;
+
+ EcsMember *members = ecs_vector_first(type->members, EcsMember);
+ int32_t i, count = ecs_vector_count(type->members);
+
+ for (i = 0; i < count; i ++) {
+ /* Add type operations of member to struct ops */
+ int32_t prev_count = ecs_vector_count(ops);
+ ops = serialize_type(world, members[i].type, ops, offset + size);
+
+#ifndef NDEBUG
+ int32_t op_count = ecs_vector_count(ops);
+
+ /* At least one op should be added */
+ ecs_assert(prev_count != op_count, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(ops != NULL, ECS_INTERNAL_ERROR, NULL);
+#endif
+
+ op = ecs_vector_get(ops, ecs_type_op_t, prev_count);
+ op->name = members[i].name;
+
+ const EcsMetaType *meta_type = ecs_get(world, members[i].type, EcsMetaType);
+ ecs_size_t member_size = meta_type->size * (meta_type->kind == EcsStructType ? 1 : op->count);
+ int16_t member_alignment = meta_type->alignment;
+
+ ecs_assert(member_size != 0, ECS_INTERNAL_ERROR, op->name);
+ ecs_assert(member_alignment != 0, ECS_INTERNAL_ERROR, op->name);
+
+ size = ECS_ALIGN(size, member_alignment);
+ op->offset = offset + size;
+
+ size += member_size;
+
+ if (member_alignment > alignment) {
+ alignment = member_alignment;
+ }
+ }
+
+ /* Align struct size to struct alignment */
+ size = ECS_ALIGN(size, alignment);
+
+ /* Size and alignment are ordinarily determined by ECS_STRUCT and should be
+ * the same as the values computed here. However, there are two exceptions.
+ * The first exception is when an application defines a type by populating
+ * the EcsStruct component directly and does not provide size and alignment
+ * values for EcsMetaType. The second scenario is when the type definition
+ * contains an ECS_PRIVATE, in which case the type may contain
+ * members that are not described.
+ *
+ * In the first case the computed values should be set in EcsMetaType. In the
+ * second case the values from EcsMetaType should be assigned to the type
+ * operation. */
+ bool is_added;
+ EcsMetaType *base_type = ecs_get_mut(world, entity, EcsMetaType, &is_added);
+ ecs_assert(base_type != NULL, ECS_INTERNAL_ERROR, NULL);
+ if (!is_added) {
+ if (!type->is_partial) {
+ /* EcsMetaType existed already, and this is not a partial type. This
+ * means that computed size and alignment should match exactly. */
+ if (base_type->size) {
+ ecs_assert(base_type->size == size, ECS_INTERNAL_ERROR, NULL);
+ }
+
+ if (base_type->alignment) {
+ ecs_assert(
+ base_type->alignment == alignment, ECS_INTERNAL_ERROR, NULL);
+ }
+ } else {
+ /* EcsMetaType exists, and this is a partial type. In this case the
+ * computed values only apply to the members described in EcsStruct
+ * but not to the type as a whole. Use the values from EcsMetaType. Note
+ * that it is not allowed to have a partial type for which no size
+ * and alignment are specified in EcsMetaType. */
+ ecs_assert(base_type->size != 0, ECS_INVALID_PARAMETER, NULL);
+ ecs_assert(base_type->alignment != 0, ECS_INVALID_PARAMETER, NULL);
+
+ size = base_type->size;
+ alignment = base_type->alignment;
+ }
+ } else {
+ /* If EcsMetaType was not set yet, initialize descriptor, alias to NULL
+ * since it won't be used here */
+ base_type->descriptor = NULL;
+ base_type->alias = NULL;
+ }
+
+ base_type->kind = EcsStructType;
+ base_type->size = size;
+ base_type->alignment = alignment;
+
+ op = ecs_vector_add(&ops, ecs_type_op_t);
+ *op = (ecs_type_op_t) {
+ .kind = EcsOpPop,
+ };
+
+ if (op_header) {
+ op_header = ecs_vector_first(ops, ecs_type_op_t);
+ *op_header = (ecs_type_op_t) {
+ .kind = EcsOpHeader,
+ .size = size,
+ .alignment = alignment
+ };
+ }
+
+ ecs_type_op_t *op_push = ecs_vector_get(ops, ecs_type_op_t, push_op);
+ ecs_assert(op_push->kind == EcsOpPush, ECS_INTERNAL_ERROR, NULL);
+ op_push->size = size;
+ op_push->alignment = alignment;
+ op_push->count = count;
+
+ return ops;
+}
+
+static
+ecs_vector_t* serialize_array(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ const EcsArray *type,
+ ecs_vector_t *ops)
+{
+ (void)entity;
+
+ ecs_type_op_t *op_header = NULL;
+ if (!ops) {
+ op_header = ecs_vector_add(&ops, ecs_type_op_t);
+ }
+
+ const EcsMetaType *element_type = ecs_get(world, type->element_type, EcsMetaType);
+ ecs_assert(element_type != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ ecs_ref_t ref = {0};
+ ecs_get_ref(world, &ref, type->element_type, EcsMetaTypeSerializer);
+
+ ecs_type_op_t *op = ecs_vector_add(&ops, ecs_type_op_t);
+ *op = (ecs_type_op_t){
+ .kind = EcsOpArray,
+ .count = type->count,
+ .size = element_type->size,
+ .alignment = element_type->alignment,
+ .is.collection = ref
+ };
+
+ if (op_header) {
+ op_header = ecs_vector_first(ops, ecs_type_op_t);
+ *op_header = (ecs_type_op_t) {
+ .kind = EcsOpHeader,
+ .size = op->size,
+ .alignment = op->alignment
+ };
+ }
+
+ EcsMetaType *meta = ecs_get_mut(world, entity, EcsMetaType, NULL);
+
+ if(!meta->size || !meta->alignment) {
+ meta->size = type->count * element_type->size;
+ meta->alignment = element_type->alignment;
+ }
+
+ return ops;
+}
+
+static
+ecs_vector_t* serialize_vector(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ const EcsVector *type,
+ ecs_vector_t *ops)
+{
+ (void)entity;
+
+ ecs_type_op_t *op = NULL;
+ if (!ops) {
+ op = ecs_vector_add(&ops, ecs_type_op_t);
+ *op = (ecs_type_op_t) {
+ .kind = EcsOpHeader,
+ .size = sizeof(ecs_vector_t*),
+ .alignment = ECS_ALIGNOF(ecs_vector_t*)
+ };
+ }
+
+ const EcsMetaType *element_type = ecs_get(world, type->element_type, EcsMetaType);
+ ecs_assert(element_type != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ ecs_ref_t ref = {0};
+ ecs_get_ref(world, &ref, type->element_type, EcsMetaTypeSerializer);
+
+ op = ecs_vector_add(&ops, ecs_type_op_t);
+ *op = (ecs_type_op_t){
+ .kind = EcsOpVector,
+ .count = 1,
+ .size = element_type->size,
+ .alignment = element_type->alignment,
+ .is.collection = ref
+ };
+
+ return ops;
+}
+
+static
+ecs_vector_t* serialize_map(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ const EcsMap *type,
+ ecs_vector_t *ops)
+{
+ ecs_type_op_t *op = NULL;
+ if (!ops) {
+ op = ecs_vector_add(&ops, ecs_type_op_t);
+ *op = (ecs_type_op_t) {
+ .kind = EcsOpHeader,
+ .size = sizeof(ecs_map_t*),
+ .alignment = ECS_ALIGNOF(ecs_map_t*)
+ };
+ }
+
+ const EcsMetaTypeSerializer *key_cache = ecs_get(world, type->key_type, EcsMetaTypeSerializer);
+ ecs_assert(key_cache != NULL, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(key_cache->ops != NULL, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(ecs_vector_count(key_cache->ops) != 0, ECS_INTERNAL_ERROR, NULL);
+
+ /* Make sure first op is the header */
+ ecs_type_op_t *key_op = ecs_vector_first(key_cache->ops, ecs_type_op_t);
+ ecs_assert(key_op->kind == EcsOpHeader, ECS_INTERNAL_ERROR, NULL);
+
+ if (ecs_vector_count(key_cache->ops) != 2) {
+ const EcsMetaType *ptr = ecs_get(world, entity, EcsMetaType);
+ ecs_assert(ptr != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ ecs_meta_parse_ctx_t ctx = {
+ .name = ecs_get_name(world, entity),
+ .decl = ptr->descriptor
+ };
+
+ ecs_meta_error( &ctx, ctx.decl,
+ "invalid key type '%s' for map", ecs_get_name(world, type->key_type));
+ }
+
+ key_op = ecs_vector_get(key_cache->ops, ecs_type_op_t, 1);
+ ecs_assert(key_op != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ if (key_op->count != 1) {
+ const EcsMetaType *ptr = ecs_get(world, entity, EcsMetaType);
+ ecs_assert(ptr != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ ecs_meta_parse_ctx_t ctx = {
+ .name = ecs_get_name(world, entity),
+ .decl = ptr->descriptor
+ };
+ ecs_meta_error( &ctx, ctx.decl, "array type invalid for key type");
+ }
+
+ ecs_ref_t key_ref = {0};
+ ecs_get_ref(world, &key_ref, type->key_type, EcsMetaTypeSerializer);
+
+ ecs_ref_t element_ref = {0};
+ ecs_get_ref(world, &element_ref, type->element_type, EcsMetaTypeSerializer);
+
+ op = ecs_vector_add(&ops, ecs_type_op_t);
+ *op = (ecs_type_op_t){
+ .kind = EcsOpMap,
+ .count = 1,
+ .size = sizeof(ecs_map_t*),
+ .alignment = ECS_ALIGNOF(ecs_map_t*),
+ .is.map = {
+ .key = key_ref,
+ .element = element_ref
+ }
+ };
+
+ return ops;
+}
+
+static
+ecs_vector_t* serialize_type(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ ecs_vector_t *ops,
+ int32_t offset)
+{
+ const EcsMetaType *type = ecs_get(world, entity, EcsMetaType);
+ ecs_assert(type != NULL, ECS_INVALID_PARAMETER, NULL);
+
+ switch(type->kind) {
+ case EcsPrimitiveType: {
+ const EcsPrimitive *t = ecs_get(world, entity, EcsPrimitive);
+ ecs_assert(t != NULL, ECS_INTERNAL_ERROR, NULL);
+ return serialize_primitive(world, entity, t, ops);
+ }
+
+ case EcsEnumType: {
+ const EcsEnum *t = ecs_get(world, entity, EcsEnum);
+ ecs_assert(t != NULL, ECS_INTERNAL_ERROR, NULL);
+ return serialize_enum(world, entity, t, ops);
+ }
+
+ case EcsBitmaskType: {
+ const EcsBitmask *t = ecs_get(world, entity, EcsBitmask);
+ ecs_assert(t != NULL, ECS_INTERNAL_ERROR, NULL);
+ return serialize_bitmask(world, entity, t, ops);
+ }
+
+ case EcsStructType: {
+ const EcsStruct *t = ecs_get(world, entity, EcsStruct);
+ ecs_assert(t != NULL, ECS_INTERNAL_ERROR, NULL);
+ return serialize_struct(world, entity, t, ops, offset);
+ }
+
+ case EcsArrayType: {
+ const EcsArray *t = ecs_get(world, entity, EcsArray);
+ ecs_assert(t != NULL, ECS_INTERNAL_ERROR, NULL);
+ return serialize_array(world, entity, t, ops);
+ }
+
+ case EcsVectorType: {
+ const EcsVector *t = ecs_get(world, entity, EcsVector);
+ ecs_assert(t != NULL, ECS_INTERNAL_ERROR, NULL);
+ return serialize_vector(world, entity, t, ops);
+ }
+
+ case EcsMapType: {
+ const EcsMap *t = ecs_get(world, entity, EcsMap);
+ ecs_assert(t != NULL, ECS_INTERNAL_ERROR, NULL);
+ return serialize_map(world, entity, t, ops);
+ }
+
+ default:
+ break;
+ }
+
+ return NULL;
+}
+
+void EcsSetPrimitive(ecs_iter_t *it) {
+ EcsPrimitive *type = ecs_column(it, EcsPrimitive, 1);
+
+ ecs_world_t *world = it->world;
+
+ int i;
+ for (i = 0; i < it->count; i ++) {
+ ecs_entity_t e = it->entities[i];
+
+ /* Size and alignment for primitive types can only be set after we know
+ * what kind of primitive type it is. Set values in case they haven't
+ * been set already */
+ bool is_added;
+ EcsMetaType *base_type = ecs_get_mut(world, e, EcsMetaType, &is_added);
+ ecs_assert(base_type != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ base_type->size = ecs_get_primitive_size(type[i].kind);
+ base_type->alignment = ecs_get_primitive_alignment(type[i].kind);
+
+ ecs_set(world, e, EcsMetaTypeSerializer, {
+ serialize_primitive(
+ world, e, &type[i], NULL)
+ });
+ }
+}
+
+void EcsSetEnum(ecs_iter_t *it) {
+ EcsEnum *type = ecs_column(it, EcsEnum, 1);
+
+ ecs_world_t *world = it->world;
+
+ int i;
+ for (i = 0; i < it->count; i ++) {
+ ecs_entity_t e = it->entities[i];
+
+ ecs_set(it->world, e, EcsMetaTypeSerializer, {
+ serialize_enum(world, e, &type[i], NULL)
+ });
+ }
+}
+
+void EcsSetBitmask(ecs_iter_t *it) {
+ EcsBitmask *type = ecs_column(it, EcsBitmask, 1);
+
+ ecs_world_t *world = it->world;
+
+ int i;
+ for (i = 0; i < it->count; i ++) {
+ ecs_entity_t e = it->entities[i];
+ ecs_set(it->world, e, EcsMetaTypeSerializer, {
+ serialize_bitmask(world, e, &type[i], NULL)
+ });
+ }
+}
+
+void EcsSetStruct(ecs_iter_t *it) {
+ EcsStruct *type = ecs_column(it, EcsStruct, 1);
+
+ ecs_world_t *world = it->world;
+
+ int i;
+ for (i = 0; i < it->count; i ++) {
+ ecs_entity_t e = it->entities[i];
+ ecs_set(it->world, e, EcsMetaTypeSerializer, {
+ serialize_struct(world, e, &type[i], NULL, 0)
+ });
+ }
+}
+
+void EcsSetArray(ecs_iter_t *it) {
+ EcsArray *type = ecs_column(it, EcsArray, 1);
+
+ ecs_world_t *world = it->world;
+
+ int i;
+ for (i = 0; i < it->count; i ++) {
+ ecs_entity_t e = it->entities[i];
+ ecs_set(it->world, e, EcsMetaTypeSerializer, {
+ serialize_array(world, e, &type[i], NULL)
+ });
+ }
+}
+
+void EcsSetVector(ecs_iter_t *it) {
+ EcsVector *type = ecs_column(it, EcsVector, 1);
+
+ ecs_world_t *world = it->world;
+
+ int i;
+ for (i = 0; i < it->count; i ++) {
+ ecs_entity_t e = it->entities[i];
+ ecs_set(it->world, e, EcsMetaTypeSerializer, {
+ serialize_vector(world, e, &type[i], NULL)
+ });
+ }
+}
+
+void EcsSetMap(ecs_iter_t *it) {
+ EcsMap *type = ecs_column(it, EcsMap, 1);
+
+ ecs_world_t *world = it->world;
+
+ int i;
+ for (i = 0; i < it->count; i ++) {
+ ecs_entity_t e = it->entities[i];
+ ecs_set(it->world, e, EcsMetaTypeSerializer, {
+ serialize_map(world, e, &type[i], NULL)
+ });
+ }
+}
+
+char* ecs_chresc(
+ char *out,
+ char in,
+ char delimiter)
+{
+ char *bptr = out;
+ switch(in) {
+ case '\a':
+ *bptr++ = '\\';
+ *bptr = 'a';
+ break;
+ case '\b':
+ *bptr++ = '\\';
+ *bptr = 'b';
+ break;
+ case '\f':
+ *bptr++ = '\\';
+ *bptr = 'f';
+ break;
+ case '\n':
+ *bptr++ = '\\';
+ *bptr = 'n';
+ break;
+ case '\r':
+ *bptr++ = '\\';
+ *bptr = 'r';
+ break;
+ case '\t':
+ *bptr++ = '\\';
+ *bptr = 't';
+ break;
+ case '\v':
+ *bptr++ = '\\';
+ *bptr = 'v';
+ break;
+ case '\\':
+ *bptr++ = '\\';
+ *bptr = '\\';
+ break;
+ default:
+ if (in == delimiter) {
+ *bptr++ = '\\';
+ *bptr = delimiter;
+ } else {
+ *bptr = in;
+ }
+ break;
+ }
+
+ *(++bptr) = '\0';
+
+ return bptr;
+}
+
+const char* ecs_chrparse(
+ const char *in,
+ char *out)
+{
+ const char *result = in + 1;
+ char ch;
+
+ if (in[0] == '\\') {
+ result ++;
+
+ switch(in[1]) {
+ case 'a':
+ ch = '\a';
+ break;
+ case 'b':
+ ch = '\b';
+ break;
+ case 'f':
+ ch = '\f';
+ break;
+ case 'n':
+ ch = '\n';
+ break;
+ case 'r':
+ ch = '\r';
+ break;
+ case 't':
+ ch = '\t';
+ break;
+ case 'v':
+ ch = '\v';
+ break;
+ case '\\':
+ ch = '\\';
+ break;
+ case '"':
+ ch = '"';
+ break;
+ case '0':
+ ch = '\0';
+ break;
+ case ' ':
+ ch = ' ';
+ break;
+ case '$':
+ ch = '$';
+ break;
+ default:
+ goto error;
+ }
+ } else {
+ ch = in[0];
+ }
+
+ if (out) {
+ *out = ch;
+ }
+
+ return result;
+error:
+ return NULL;
+}
+
+ecs_size_t ecs_stresc(
+ char *out,
+ ecs_size_t n,
+ char delimiter,
+ const char *in)
+{
+ const char *ptr = in;
+ char ch, *bptr = out, buff[3];
+ ecs_size_t written = 0;
+ while ((ch = *ptr++)) {
+ if ((written += (ecs_size_t)(ecs_chresc(buff, ch, delimiter) - buff)) <= n) {
+ *bptr++ = buff[0];
+ if ((ch = buff[1])) {
+ *bptr = ch;
+ bptr++;
+ }
+ }
+ }
+
+ if (bptr) {
+ while (written < n) {
+ *bptr = '\0';
+ bptr++;
+ written++;
+ }
+ }
+ return written;
+}
+
+/* Simple serializer to turn values into strings. Use this code as a template
+ * for when implementing a new serializer. */
+
+static
+int str_ser_type(
+ ecs_world_t *world,
+ ecs_vector_t *ser,
+ const void *base,
+ ecs_strbuf_t *str);
+
+static
+int str_ser_type_op(
+ ecs_world_t *world,
+ ecs_type_op_t *op,
+ const void *base,
+ ecs_strbuf_t *str);
+
+/* Serialize a primitive value */
+static
+void str_ser_primitive(
+ ecs_world_t *world,
+ ecs_type_op_t *op,
+ const void *base,
+ ecs_strbuf_t *str)
+{
+ const char *bool_str[] = { "false", "true" };
+
+ switch(op->is.primitive) {
+ case EcsBool:
+ ecs_strbuf_appendstr(str, bool_str[(int)*(bool*)base]);
+ break;
+ case EcsChar: {
+ char chbuf[3];
+ ecs_chresc(chbuf, *(char*)base, '\'');
+
+ ecs_strbuf_appendstrn(str, "'", 1);
+ ecs_strbuf_appendstr(str, chbuf);
+ ecs_strbuf_appendstrn(str, "'", 1);
+ break;
+ }
+ case EcsByte:
+ ecs_strbuf_append(str, "0x%x", *(uint8_t*)base);
+ break;
+ case EcsU8:
+ ecs_strbuf_append(str, "%u", *(uint8_t*)base);
+ break;
+ case EcsU16:
+ ecs_strbuf_append(str, "%u", *(uint16_t*)base);
+ break;
+ case EcsU32:
+ ecs_strbuf_append(str, "%u", *(uint32_t*)base);
+ break;
+ case EcsU64:
+ ecs_strbuf_append(str, "%llu", *(uint64_t*)base);
+ break;
+ case EcsI8:
+ ecs_strbuf_append(str, "%d", *(int8_t*)base);
+ break;
+ case EcsI16:
+ ecs_strbuf_append(str, "%d", *(int16_t*)base);
+ break;
+ case EcsI32:
+ ecs_strbuf_append(str, "%d", *(int32_t*)base);
+ break;
+ case EcsI64:
+ ecs_strbuf_append(str, "%lld", *(int64_t*)base);
+ break;
+ case EcsF32:
+ ecs_strbuf_append(str, "%f", (double)*(float*)base);
+ break;
+ case EcsF64:
+ ecs_strbuf_append(str, "%f", *(double*)base);
+ break;
+ case EcsIPtr:
+ ecs_strbuf_append(str, "%i", *(intptr_t*)base);
+ break;
+ case EcsUPtr:
+ ecs_strbuf_append(str, "%u", *(uintptr_t*)base);
+ break;
+ case EcsString: {
+ char *value = *(char**)base;
+ if (value) {
+ ecs_size_t length = ecs_stresc(NULL, 0, '"', value);
+ if (length == ecs_os_strlen(value)) {
+ ecs_strbuf_appendstrn(str, "\"", 1);
+ ecs_strbuf_appendstr(str, value);
+ ecs_strbuf_appendstrn(str, "\"", 1);
+ } else {
+ char *out = ecs_os_malloc(length + 3);
+ ecs_stresc(out + 1, length, '"', value);
+ out[0] = '"';
+ out[length + 1] = '"';
+ out[length + 2] = '\0';
+ ecs_strbuf_appendstr_zerocpy(str, out);
+ }
+ } else {
+ ecs_strbuf_appendstr(str, "nullptr");
+ }
+ break;
+ }
+ case EcsEntity: {
+ ecs_entity_t e = *(ecs_entity_t*)base;
+ const char *name;
+ if (e && (name = ecs_get_name(world, e))) {
+ ecs_strbuf_appendstr(str, name);
+ } else {
+ ecs_strbuf_append(str, "%u", e);
+ }
+
+ break;
+ }
+ }
+}
+
+/* Serialize enumeration */
+static
+int str_ser_enum(
+ ecs_world_t *world,
+ ecs_type_op_t *op,
+ const void *base,
+ ecs_strbuf_t *str)
+{
+ const EcsEnum *enum_type = ecs_get_ref_w_entity(world, &op->is.constant, 0, 0);
+ ecs_assert(enum_type != NULL, ECS_INVALID_PARAMETER, NULL);
+
+ int32_t value = *(int32_t*)base;
+
+ /* Enumeration constants are stored in a map that is keyed on the
+ * enumeration value. */
+ char **constant = ecs_map_get(enum_type->constants, char*, value);
+ if (!constant) {
+ return -1;
+ }
+
+ ecs_strbuf_appendstr(str, *constant);
+
+ return 0;
+}
+
+/* Serialize bitmask */
+static
+int str_ser_bitmask(
+ ecs_world_t *world,
+ ecs_type_op_t *op,
+ const void *base,
+ ecs_strbuf_t *str)
+{
+ const EcsBitmask *bitmask_type = ecs_get_ref_w_entity(world, &op->is.constant, 0, 0);
+ ecs_assert(bitmask_type != NULL, ECS_INVALID_PARAMETER, NULL);
+
+ uint32_t value = *(uint32_t*)base;
+ ecs_map_key_t key;
+ char **constant;
+ int count = 0;
+
+ ecs_strbuf_list_push(str, "", " | ");
+
+ /* Multiple flags can be set at a given time. Iterate through all the flags
+ * and append the ones that are set. */
+ ecs_map_iter_t it = ecs_map_iter(bitmask_type->constants);
+ while ((constant = ecs_map_next(&it, char*, &key))) {
+ if ((value & key) == key) {
+ ecs_strbuf_list_appendstr(str, *constant);
+ count ++;
+ }
+ }
+
+ if (!count) {
+ ecs_strbuf_list_appendstr(str, "0");
+ }
+
+ ecs_strbuf_list_pop(str, "");
+
+ return 0;
+}
+
+/* Serialize elements of a contiguous array */
+static
+int str_ser_elements(
+ ecs_world_t *world,
+ ecs_vector_t *elem_ops,
+ const void *base,
+ int32_t elem_count,
+ int32_t elem_size,
+ ecs_strbuf_t *str)
+{
+ ecs_strbuf_list_push(str, "[", ", ");
+
+ const void *ptr = base;
+
+ int i;
+ for (i = 0; i < elem_count; i ++) {
+ ecs_strbuf_list_next(str);
+ if (str_ser_type(world, elem_ops, ptr, str)) {
+ return -1;
+ }
+ ptr = ECS_OFFSET(ptr, elem_size);
+ }
+
+ ecs_strbuf_list_pop(str, "]");
+
+ return 0;
+}
+
+/* Serialize array */
+static
+int str_ser_array(
+ ecs_world_t *world,
+ ecs_type_op_t *op,
+ const void *base,
+ ecs_strbuf_t *str)
+{
+ const EcsMetaTypeSerializer *ser = ecs_get_ref_w_entity(world, &op->is.collection, 0, 0);
+ ecs_assert(ser != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ return str_ser_elements(
+ world, ser->ops, base, op->count, op->size, str);
+}
+
+/* Serialize vector */
+static
+int str_ser_vector(
+ ecs_world_t *world,
+ ecs_type_op_t *op,
+ const void *base,
+ ecs_strbuf_t *str)
+{
+ ecs_vector_t *value = *(ecs_vector_t**)base;
+ if (!value) {
+ ecs_strbuf_appendstr(str, "nullptr");
+ return 0;
+ }
+
+ const EcsMetaTypeSerializer *ser = ecs_get_ref_w_entity(world, &op->is.collection, 0, 0);
+ ecs_assert(ser != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ int32_t count = ecs_vector_count(value);
+ void *array = ecs_vector_first_t(value, op->size, op->alignment);
+ ecs_vector_t *elem_ops = ser->ops;
+
+ ecs_type_op_t *elem_op_hdr = (ecs_type_op_t*)ecs_vector_first(elem_ops, ecs_type_op_t);
+ ecs_assert(elem_op_hdr != NULL, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(elem_op_hdr->kind == EcsOpHeader, ECS_INTERNAL_ERROR, NULL);
+ ecs_size_t elem_size = elem_op_hdr->size;
+
+ /* Serialize contiguous buffer of vector */
+ return str_ser_elements(world, elem_ops, array, count, elem_size, str);
+}
+
+/* Serialize map */
+static
+int str_ser_map(
+ ecs_world_t *world,
+ ecs_type_op_t *op,
+ const void *base,
+ ecs_strbuf_t *str)
+{
+ ecs_map_t *value = *(ecs_map_t**)base;
+
+ const EcsMetaTypeSerializer *key_ser = ecs_get_ref_w_entity(world, &op->is.map.key, 0, 0);
+ ecs_assert(key_ser != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ const EcsMetaTypeSerializer *elem_ser = ecs_get_ref_w_entity(world, &op->is.map.element, 0, 0);
+ ecs_assert(elem_ser != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ /* 2 instructions, one for the header */
+ ecs_assert(ecs_vector_count(key_ser->ops) == 2, ECS_INTERNAL_ERROR, NULL);
+
+ ecs_type_op_t *key_op = ecs_vector_first(key_ser->ops, ecs_type_op_t);
+ ecs_assert(key_op->kind == EcsOpHeader, ECS_INTERNAL_ERROR, NULL);
+ key_op = &key_op[1];
+
+ ecs_map_iter_t it = ecs_map_iter(value);
+ ecs_map_key_t key;
+ void *ptr;
+
+ ecs_strbuf_list_push(str, "{", ", ");
+
+ while ((ptr = _ecs_map_next(&it, 0, &key))) {
+ ecs_strbuf_list_next(str);
+ if (str_ser_type_op(world, key_op, (void*)&key, str)) {
+ return -1;
+ }
+
+ ecs_strbuf_appendstr(str, " = ");
+
+ if (str_ser_type(world, elem_ser->ops, ptr, str)) {
+ return -1;
+ }
+
+ key = 0;
+ }
+
+ ecs_strbuf_list_pop(str, "}");
+
+ return 0;
+}
+
+/* Forward serialization to the different type kinds */
+static
+int str_ser_type_op(
+ ecs_world_t *world,
+ ecs_type_op_t *op,
+ const void *base,
+ ecs_strbuf_t *str)
+{
+ switch(op->kind) {
+ case EcsOpHeader:
+ case EcsOpPush:
+ case EcsOpPop:
+ /* Should not be parsed as single op */
+ ecs_abort(ECS_INVALID_PARAMETER, NULL);
+ break;
+ case EcsOpPrimitive:
+ str_ser_primitive(world, op, ECS_OFFSET(base, op->offset), str);
+ break;
+ case EcsOpEnum:
+ if (str_ser_enum(world, op, ECS_OFFSET(base, op->offset), str)) {
+ return -1;
+ }
+ break;
+ case EcsOpBitmask:
+ if (str_ser_bitmask(world, op, ECS_OFFSET(base, op->offset), str)) {
+ return -1;
+ }
+ break;
+ case EcsOpArray:
+ if (str_ser_array(world, op, ECS_OFFSET(base, op->offset), str)) {
+ return -1;
+ }
+ break;
+ case EcsOpVector:
+ if (str_ser_vector(world, op, ECS_OFFSET(base, op->offset), str)) {
+ return -1;
+ }
+ break;
+ case EcsOpMap:
+ if (str_ser_map(world, op, ECS_OFFSET(base, op->offset), str)) {
+ return -1;
+ }
+ break;
+ }
+
+ return 0;
+}
+
+/* Iterate over the type ops of a type */
+static
+int str_ser_type(
+ ecs_world_t *world,
+ ecs_vector_t *ser,
+ const void *base,
+ ecs_strbuf_t *str)
+{
+ ecs_type_op_t *ops = (ecs_type_op_t*)ecs_vector_first(ser, ecs_type_op_t);
+ int32_t count = ecs_vector_count(ser);
+
+ for (int i = 0; i < count; i ++) {
+ ecs_type_op_t *op = &ops[i];
+
+ if (op->name) {
+ if (op->kind != EcsOpHeader)
+ {
+ ecs_strbuf_list_next(str);
+ }
+
+ ecs_strbuf_append(str, "%s = ", op->name);
+ }
+
+ switch(op->kind) {
+ case EcsOpHeader:
+ break;
+ case EcsOpPush:
+ ecs_strbuf_list_push(str, "{", ", ");
+ break;
+ case EcsOpPop:
+ ecs_strbuf_list_pop(str, "}");
+ break;
+ default:
+ if (str_ser_type_op(world, op, base, str)) {
+ goto error;
+ }
+ break;
+ }
+ }
+
+ return 0;
+error:
+ ecs_strbuf_reset(str);
+ return -1;
+}
+
+char* ecs_ptr_to_str(
+ ecs_world_t *world,
+ ecs_entity_t type,
+ void* ptr)
+{
+ const EcsMetaTypeSerializer *ser = ecs_get(world, type, EcsMetaTypeSerializer);
+ ecs_assert(ser != NULL, ECS_INVALID_PARAMETER, NULL);
+
+ ecs_strbuf_t str = ECS_STRBUF_INIT;
+ if (str_ser_type(world, ser->ops, ptr, &str)) {
+ return NULL;
+ }
+
+ return ecs_strbuf_get(&str);
+}
+
+char* ecs_entity_to_str(
+ ecs_world_t *world,
+ ecs_entity_t entity)
+{
+ ecs_type_t type = ecs_get_type(world, entity);
+ ecs_entity_t *ids = (ecs_entity_t*)ecs_vector_first(type, ecs_entity_t);
+ int32_t count = ecs_vector_count(type);
+
+ ecs_strbuf_t str = ECS_STRBUF_INIT;
+
+ const char *name = ecs_get_name(world, entity);
+ if (name) {
+ ecs_strbuf_append(&str, "%s: ", name);
+ }
+
+ ecs_strbuf_appendstr(&str, "{\n");
+
+ int i, comps_serialized = 0;
+ for (i = 0; i < count; i ++) {
+ const EcsMetaTypeSerializer *ser = ecs_get(world, ids[i], EcsMetaTypeSerializer);
+ if (ser) {
+ const void *ptr = ecs_get_w_entity(world, entity, ids[i]);
+ ecs_strbuf_append(&str, " %s: ", ecs_get_name(world, ids[i]));
+ if (str_ser_type(world, ser->ops, ptr, &str)) {
+ goto error;
+ }
+
+ ecs_strbuf_appendstr(&str, "\n");
+ comps_serialized ++;
+ }
+ }
+
+ ecs_strbuf_appendstr(&str, "}");
+
+ return ecs_strbuf_get(&str);
+error:
+ ecs_strbuf_reset(&str);
+ return NULL;
+}
+#ifndef FLECS_META_TYPE_H
+#define FLECS_META_TYPE_H
+
+
+ecs_entity_t ecs_meta_lookup_array(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ const char *params_decl,
+ ecs_meta_parse_ctx_t *ctx);
+
+ecs_entity_t ecs_meta_lookup_vector(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ const char *params_decl,
+ ecs_meta_parse_ctx_t *ctx);
+
+ecs_entity_t ecs_meta_lookup_map(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ const char *params_decl,
+ ecs_meta_parse_ctx_t *ctx);
+
+ecs_entity_t ecs_meta_lookup_bitmask(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ const char *params_decl,
+ ecs_meta_parse_ctx_t *ctx);
+
+ecs_entity_t ecs_meta_lookup(
+ ecs_world_t *world,
+ ecs_meta_type_t *token,
+ const char *ptr,
+ int64_t count,
+ ecs_meta_parse_ctx_t *ctx);
+
+#endif
+
+ECS_COMPONENT_DECLARE(EcsPrimitive);
+ECS_COMPONENT_DECLARE(EcsEnum);
+ECS_COMPONENT_DECLARE(EcsBitmask);
+ECS_COMPONENT_DECLARE(EcsMember);
+ECS_COMPONENT_DECLARE(EcsStruct);
+ECS_COMPONENT_DECLARE(EcsArray);
+ECS_COMPONENT_DECLARE(EcsVector);
+ECS_COMPONENT_DECLARE(EcsMap);
+ECS_COMPONENT_DECLARE(EcsMetaType);
+ECS_COMPONENT_DECLARE(ecs_type_op_kind_t);
+ECS_COMPONENT_DECLARE(ecs_type_op_t);
+ECS_COMPONENT_DECLARE(EcsMetaTypeSerializer);
+
+static ECS_CTOR(EcsMetaType, ptr, {
+ ptr->descriptor = NULL;
+ ptr->alias = NULL;
+})
+
+static ECS_DTOR(EcsMetaType, ptr, {
+ ecs_os_free((char*)ptr->descriptor);
+ ptr->descriptor = NULL;
+ ptr->alias = NULL;
+})
+
+static ECS_COPY(EcsMetaType, dst, src, {
+ if (dst->descriptor) {
+ ecs_os_free((char*)dst->descriptor);
+ dst->descriptor = NULL;
+ }
+
+ if (src->descriptor) {
+ dst->descriptor = ecs_os_strdup(src->descriptor);
+ } else {
+ dst->descriptor = NULL;
+ }
+
+ dst->kind = src->kind;
+ dst->size = src->size;
+ dst->alignment = src->alignment;
+ dst->alias = src->alias;
+})
+
+static ECS_CTOR(EcsStruct, ptr, {
+ ptr->members = NULL;
+ ptr->is_partial = false;
+})
+
+static ECS_DTOR(EcsStruct, ptr, {
+ ecs_vector_each(ptr->members, EcsMember, m, {
+ ecs_os_free(m->name);
+ });
+ ecs_vector_free(ptr->members);
+})
+
+static ECS_CTOR(EcsEnum, ptr, {
+ ptr->constants = NULL;
+})
+
+static ECS_DTOR(EcsEnum, ptr, {
+ ecs_map_each(ptr->constants, char*, key, c_ptr, {
+ ecs_os_free(*c_ptr);
+ })
+ ecs_map_free(ptr->constants);
+})
+
+static ECS_CTOR(EcsBitmask, ptr, {
+ ptr->constants = NULL;
+})
+
+static ECS_DTOR(EcsBitmask, ptr, {
+ ecs_map_each(ptr->constants, char*, key, c_ptr, {
+ ecs_os_free(*c_ptr);
+ })
+ ecs_map_free(ptr->constants);
+})
+
+static ECS_CTOR(EcsMetaTypeSerializer, ptr, {
+ ptr->ops = NULL;
+})
+
+static ECS_DTOR(EcsMetaTypeSerializer, ptr, {
+ ecs_vector_free(ptr->ops);
+})
+
+static
+void ecs_set_primitive(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ EcsMetaType *type)
+{
+ ecs_assert(world != NULL, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(e != 0, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(type != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ const char *descr = type->descriptor;
+
+ if (!strcmp(descr, "bool")) {
+ ecs_set(world, e, EcsPrimitive, {EcsBool});
+ } else
+ if (!strcmp(descr, "char")) {
+ ecs_set(world, e, EcsPrimitive, {EcsChar});
+ } else
+ if (!strcmp(descr, "u8")) {
+ ecs_set(world, e, EcsPrimitive, {EcsU8});
+ } else
+ if (!strcmp(descr, "u8")) {
+ ecs_set(world, e, EcsPrimitive, {EcsU8});
+ } else
+ if (!strcmp(descr, "u16")) {
+ ecs_set(world, e, EcsPrimitive, {EcsU16});
+ } else
+ if (!strcmp(descr, "u32")) {
+ ecs_set(world, e, EcsPrimitive, {EcsU32});
+ } else
+ if (!strcmp(descr, "u64")) {
+ ecs_set(world, e, EcsPrimitive, {EcsU64});
+ } else
+ if (!strcmp(descr, "i8")) {
+ ecs_set(world, e, EcsPrimitive, {EcsI8});
+ } else
+ if (!strcmp(descr, "i16")) {
+ ecs_set(world, e, EcsPrimitive, {EcsI16});
+ } else
+ if (!strcmp(descr, "i32")) {
+ ecs_set(world, e, EcsPrimitive, {EcsI32});
+ } else
+ if (!strcmp(descr, "f32")) {
+ ecs_set(world, e, EcsPrimitive, {EcsF32});
+ } else
+ if (!strcmp(descr, "f64")) {
+ ecs_set(world, e, EcsPrimitive, {EcsF64});
+ } else
+ if (!strcmp(descr, "iptr")) {
+ ecs_set(world, e, EcsPrimitive, {EcsIPtr});
+ } else
+ if (!strcmp(descr, "uptr")) {
+ ecs_set(world, e, EcsPrimitive, {EcsUPtr});
+ } else
+ if (!strcmp(descr, "string_t")) {
+ ecs_set(world, e, EcsPrimitive, {EcsString});
+ } else
+ if (!strcmp(descr, "entity")) {
+ ecs_set(world, e, EcsPrimitive, {EcsEntity});
+ }
+}
+
+static
+void ecs_set_constants(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ ecs_entity_t comp,
+ bool is_bitmask,
+ EcsMetaType *type)
+{
+ ecs_assert(world != NULL, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(e != 0, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(type != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ const char *ptr = type->descriptor;
+ const char *name = ecs_get_name(world, e);
+
+ ecs_meta_parse_ctx_t ctx = {
+ .name = name,
+ .decl = ptr
+ };
+
+ ecs_map_t *constants = ecs_map_new(char*, 1);
+ ecs_meta_constant_t token;
+ int64_t last_value = 0;
+
+ while ((ptr = ecs_meta_parse_constant(ptr, &token, &ctx))) {
+ if (token.is_value_set) {
+ last_value = token.value;
+ } else if (is_bitmask) {
+ ecs_meta_error(&ctx, ptr,
+ "bitmask requires explicit value assignment");
+ }
+
+ char *constant_name = ecs_os_strdup(token.name);
+ ecs_map_set(constants, last_value, &constant_name);
+
+ last_value ++;
+ }
+
+ ecs_set_ptr_w_entity(world, e, comp, sizeof(EcsEnum), &(EcsEnum){
+ .constants = constants
+ });
+}
+
+static
+void ecs_set_bitmask(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ EcsMetaType *type)
+{
+ ecs_set_constants(world, e, ecs_id(EcsBitmask), true, type);
+}
+
+static
+void ecs_set_enum(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ EcsMetaType *type)
+{
+ ecs_set_constants(world, e, ecs_id(EcsEnum), false, type);
+}
+
+static
+void ecs_set_struct(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ EcsMetaType *type)
+{
+ ecs_assert(world != NULL, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(e != 0, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(type != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ const char *ptr = type->descriptor;
+ const char *name = ecs_get_name(world, e);
+ bool is_partial = false;
+
+ ecs_meta_parse_ctx_t ctx = {
+ .name = name,
+ .decl = ptr
+ };
+
+ ecs_vector_t *members = NULL;
+ ecs_meta_member_t token;
+
+ while ((ptr = ecs_meta_parse_member(ptr, &token, &ctx))) {
+ EcsMember *m = ecs_vector_add(&members, EcsMember);
+ m->name = ecs_os_strdup(token.name);
+ m->type = ecs_meta_lookup(world, &token.type, ptr, token.count, &ctx);
+ ecs_assert(type != 0, ECS_INTERNAL_ERROR, NULL);
+ }
+
+ if (!ecs_vector_count(members)) {
+ ecs_parser_error(name, type->descriptor, 0, "empty struct declaration");
+ }
+
+ is_partial = token.is_partial;
+
+ ecs_set(world, e, EcsStruct, {members, is_partial});
+}
+
+static
+void ecs_set_array(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ EcsMetaType *type)
+{
+ ecs_assert(world != NULL, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(e != 0, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(type != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ const char *ptr = type->descriptor;
+ const char *name = ecs_get_name(world, e);
+
+ ecs_meta_parse_ctx_t ctx = {
+ .name = name,
+ .decl = ptr
+ };
+
+ ecs_meta_lookup_array(world, e, type->descriptor, &ctx);
+}
+
+static
+void ecs_set_vector(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ EcsMetaType *type)
+{
+ ecs_assert(world != NULL, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(e != 0, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(type != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ const char *ptr = type->descriptor;
+ const char *name = ecs_get_name(world, e);
+
+ ecs_meta_parse_ctx_t ctx = {
+ .name = name,
+ .decl = ptr
+ };
+
+ ecs_meta_lookup_vector(world, e, type->descriptor, &ctx);
+}
+
+static
+void ecs_set_map(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ EcsMetaType *type)
+{
+ ecs_assert(world != NULL, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(e != 0, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(type != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ const char *ptr = type->descriptor;
+ const char *name = ecs_get_name(world, e);
+
+ ecs_meta_parse_ctx_t ctx = {
+ .name = name,
+ .decl = ptr
+ };
+
+ ecs_meta_lookup_map(world, e, type->descriptor, &ctx);
+}
+
+static
+void EcsSetType(ecs_iter_t *it) {
+ EcsMetaType *type = ecs_column(it, EcsMetaType, 1);
+
+ ecs_world_t *world = it->world;
+
+ int i;
+ for(i = 0; i < it->count; i ++) {
+ ecs_entity_t e = it->entities[i];
+
+ /* If type does not contain a descriptor, application will have to
+ * manually initialize type specific data */
+ if (!type[i].descriptor) {
+
+ /* For some types we can set the size and alignment automatically */
+ if (!type[i].size || !type[i].alignment) {
+ switch(type[i].kind) {
+ case EcsBitmaskType:
+ case EcsEnumType:
+ type[i].size = sizeof(int32_t);
+ type[i].alignment = ECS_ALIGNOF(int32_t);
+ break;
+ case EcsVectorType:
+ type[i].size = sizeof(ecs_vector_t*);
+ type[i].alignment = ECS_ALIGNOF(ecs_vector_t*);
+ break;
+ case EcsMapType:
+ type[i].size = sizeof(ecs_map_t*);
+ type[i].alignment = ECS_ALIGNOF(ecs_map_t*);
+ break;
+ default:
+ break;
+ }
+ }
+
+ continue;
+ }
+
+ switch(type[i].kind) {
+ case EcsPrimitiveType:
+ ecs_set_primitive(world, e, type);
+ break;
+ case EcsBitmaskType:
+ ecs_set_bitmask(world, e, type);
+ break;
+ case EcsEnumType:
+ ecs_set_enum(world, e, type);
+ break;
+ case EcsStructType:
+ ecs_set_struct(world, e, type);
+ break;
+ case EcsArrayType:
+ ecs_set_array(world, e, type);
+ break;
+ case EcsVectorType:
+ ecs_set_vector(world, e, type);
+ break;
+ case EcsMapType:
+ ecs_set_map(world, e, type);
+ break;
+ }
+ }
+}
+
+void ecs_new_meta(
+ ecs_world_t *world,
+ ecs_entity_t component,
+ EcsMetaType *meta_type)
+{
+ ecs_assert(ecs_id(EcsMetaType) != 0, ECS_MODULE_UNDEFINED, "flecs.meta");
+
+ if (meta_type->alias) {
+ EcsMetaType *alias = meta_type->alias;
+ meta_type->kind = alias->kind;
+ meta_type->descriptor = alias->descriptor;
+ }
+
+ ecs_set_ptr(world, component, EcsMetaType, meta_type);
+}
+
+/* Utility macro to insert meta data for type with meta descriptor */
+#define ECS_COMPONENT_TYPE(world, type)\
+ ecs_set_ptr(world, ecs_id(type), EcsMetaType, &__##type##__)
+
+/* Utility macro to insert metadata for primitive type */
+#define ECS_COMPONENT_PRIMITIVE(world, type, kind)\
+ ECS_COMPONENT(world, type);\
+ ecs_set(world, ecs_id(type), EcsMetaType, {EcsPrimitiveType, 0, 0, NULL, NULL});\
+ ecs_set(world, ecs_id(type), EcsPrimitive, {kind})
+
+void FlecsMetaImport(
+ ecs_world_t *world)
+{
+ ECS_MODULE(world, FlecsMeta);
+
+ ecs_set_name_prefix(world, "Ecs");
+
+ ECS_COMPONENT_DEFINE(world, EcsPrimitive);
+ ECS_COMPONENT_DEFINE(world, EcsEnum);
+ ECS_COMPONENT_DEFINE(world, EcsBitmask);
+ ECS_COMPONENT_DEFINE(world, EcsMember);
+ ECS_COMPONENT_DEFINE(world, EcsStruct);
+ ECS_COMPONENT_DEFINE(world, EcsArray);
+ ECS_COMPONENT_DEFINE(world, EcsVector);
+ ECS_COMPONENT_DEFINE(world, EcsMap);
+ ECS_COMPONENT_DEFINE(world, EcsMetaType);
+ ECS_COMPONENT_DEFINE(world, ecs_type_op_kind_t);
+ ECS_COMPONENT_DEFINE(world, ecs_type_op_t);
+ ECS_COMPONENT_DEFINE(world, EcsMetaTypeSerializer);
+
+ ECS_SYSTEM(world, EcsSetType, EcsOnSet, EcsMetaType);
+
+ ecs_set_component_actions(world, EcsMetaType, {
+ .ctor = ecs_ctor(EcsMetaType),
+ .dtor = ecs_dtor(EcsMetaType),
+ .copy = ecs_copy(EcsMetaType)
+ });
+
+ ecs_set_component_actions(world, EcsStruct, {
+ .ctor = ecs_ctor(EcsStruct),
+ .dtor = ecs_dtor(EcsStruct)
+ });
+
+ ecs_set_component_actions(world, EcsEnum, {
+ .ctor = ecs_ctor(EcsEnum),
+ .dtor = ecs_dtor(EcsEnum)
+ });
+
+ ecs_set_component_actions(world, EcsBitmask, {
+ .ctor = ecs_ctor(EcsBitmask),
+ .dtor = ecs_dtor(EcsBitmask)
+ });
+
+ ecs_set_component_actions(world, EcsMetaTypeSerializer, {
+ .ctor = ecs_ctor(EcsMetaTypeSerializer),
+ .dtor = ecs_dtor(EcsMetaTypeSerializer)
+ });
+
+ ECS_SYSTEM(world, EcsSetPrimitive, EcsOnSet, Primitive);
+ ECS_SYSTEM(world, EcsSetEnum, EcsOnSet, Enum);
+ ECS_SYSTEM(world, EcsSetBitmask, EcsOnSet, Bitmask);
+ ECS_SYSTEM(world, EcsSetStruct, EcsOnSet, Struct);
+ ECS_SYSTEM(world, EcsSetArray, EcsOnSet, Array);
+ ECS_SYSTEM(world, EcsSetVector, EcsOnSet, Vector);
+ ECS_SYSTEM(world, EcsSetMap, EcsOnSet, Map);
+
+ ECS_EXPORT_COMPONENT(EcsPrimitive);
+ ECS_EXPORT_COMPONENT(EcsEnum);
+ ECS_EXPORT_COMPONENT(EcsBitmask);
+ ECS_EXPORT_COMPONENT(EcsStruct);
+ ECS_EXPORT_COMPONENT(EcsArray);
+ ECS_EXPORT_COMPONENT(EcsVector);
+ ECS_EXPORT_COMPONENT(EcsMap);
+ ECS_EXPORT_COMPONENT(EcsMetaType);
+ ECS_EXPORT_COMPONENT(EcsMetaTypeSerializer);
+
+ /* -- Initialize builtin primitive types -- */
+ ecs_entity_t old_scope = ecs_set_scope(world, EcsFlecsCore);
+ ECS_COMPONENT_PRIMITIVE(world, bool, EcsBool);
+ ECS_COMPONENT_PRIMITIVE(world, char, EcsChar);
+ ECS_COMPONENT_PRIMITIVE(world, ecs_byte_t, EcsByte);
+ ECS_COMPONENT_PRIMITIVE(world, uint8_t, EcsU8);
+ ECS_COMPONENT_PRIMITIVE(world, uint16_t, EcsU16);
+ ECS_COMPONENT_PRIMITIVE(world, uint32_t, EcsU32);
+ ECS_COMPONENT_PRIMITIVE(world, uint64_t, EcsU64);
+ ECS_COMPONENT_PRIMITIVE(world, uintptr_t, EcsUPtr);
+ ECS_COMPONENT_PRIMITIVE(world, int8_t, EcsI8);
+ ECS_COMPONENT_PRIMITIVE(world, int16_t, EcsI16);
+ ECS_COMPONENT_PRIMITIVE(world, int32_t, EcsI32);
+ ECS_COMPONENT_PRIMITIVE(world, int64_t, EcsI64);
+ ECS_COMPONENT_PRIMITIVE(world, intptr_t, EcsIPtr);
+ ECS_COMPONENT_PRIMITIVE(world, size_t, EcsUPtr);
+ ECS_COMPONENT_PRIMITIVE(world, float, EcsF32);
+ ECS_COMPONENT_PRIMITIVE(world, double, EcsF64);
+ ECS_COMPONENT_PRIMITIVE(world, ecs_size_t, EcsI32);
+ ECS_COMPONENT_PRIMITIVE(world, ecs_string_t, EcsString);
+ ECS_COMPONENT_PRIMITIVE(world, ecs_entity_t, EcsEntity);
+
+ /* If stdbool is included, the above bool declaration will have been
+ * registered with the name _Bool. To make sure meta also knows the type by
+ * its regular name, check and register if necessary */
+ if (!ecs_lookup(world, "bool")) {
+ ecs_entity_t type = ecs_component_init(world, &(ecs_component_desc_t) {
+ .entity.name = "bool",
+ .size = sizeof(bool),
+ .alignment = ECS_ALIGNOF(bool)
+ });
+
+ ecs_set(world, type, EcsMetaType, {
+ EcsPrimitiveType, 0, 0, NULL, NULL});
+ ecs_set(world, type, EcsPrimitive, {EcsBool});
+ }
+
+ ecs_set_scope(world, old_scope);
+
+ /* -- Initialize builtin meta components -- */
+
+ ecs_set_ptr(world, ecs_set_name(world, 0, "ecs_primitive_kind_t"),
+ EcsMetaType, &__ecs_primitive_kind_t__);
+
+ ecs_set(world, ecs_set_name(world, 0, "ecs_type_kind_t"),
+ EcsMetaType, {
+ EcsEnumType,
+ sizeof(ecs_type_kind_t),
+ ECS_ALIGNOF(ecs_type_kind_t),
+ __ecs_type_kind_t__,
+ NULL
+ });
+
+ /* Insert meta definitions for other types */
+ ECS_COMPONENT_TYPE(world, EcsPrimitive);
+ ECS_COMPONENT_TYPE(world, EcsEnum);
+ ECS_COMPONENT_TYPE(world, EcsBitmask);
+ ECS_COMPONENT_TYPE(world, EcsMember);
+ ECS_COMPONENT_TYPE(world, EcsStruct);
+ ECS_COMPONENT_TYPE(world, EcsArray);
+ ECS_COMPONENT_TYPE(world, EcsVector);
+ ECS_COMPONENT_TYPE(world, EcsMap);
+ ECS_COMPONENT_TYPE(world, EcsMetaType);
+ ECS_COMPONENT_TYPE(world, ecs_type_op_kind_t);
+ ECS_COMPONENT_TYPE(world, ecs_type_op_t);
+ ECS_COMPONENT_TYPE(world, EcsMetaTypeSerializer);
+
+ /* -- Initialize metadata for public Flecs core components -- */
+ ecs_set(world, ecs_id(EcsIdentifier), EcsMetaType, {
+ .kind = EcsStructType,
+ .size = sizeof(EcsIdentifier),
+ .alignment = ECS_ALIGNOF(EcsIdentifier),
+ .descriptor = "{ char *value; ECS_PRIVATE }",
+ .alias = NULL
+ });
+
+ ecs_set(world, ecs_id(EcsComponent), EcsMetaType, {
+ .kind = EcsStructType,
+ .size = sizeof(EcsComponent),
+ .alignment = ECS_ALIGNOF(EcsComponent),
+ .descriptor = "{int32_t size; int32_t alignment;}",
+ .alias = NULL
+ });
+}
+
+ecs_entity_t ecs_meta_lookup_array(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ const char *params_decl,
+ ecs_meta_parse_ctx_t *ctx)
+{
+ ecs_meta_parse_ctx_t param_ctx = {
+ .name = ctx->name,
+ .decl = params_decl
+ };
+
+ ecs_meta_params_t params;
+ ecs_meta_parse_params(params_decl, ¶ms, ¶m_ctx);
+ if (!params.is_fixed_size) {
+ ecs_meta_error(ctx, params_decl, "missing size for array");
+ }
+
+ if (!params.count) {
+ ecs_meta_error(ctx, params_decl, "invalid array size");
+ }
+
+ ecs_entity_t element_type = ecs_lookup_symbol(world, params.type.type, true);
+ if (!element_type) {
+ ecs_meta_error(ctx, params_decl, "unknown element type '%s'",
+ params.type.type);
+ }
+
+ if (!e) {
+ const EcsMetaType *elem_type = ecs_get(world, element_type, EcsMetaType);
+ ecs_assert(elem_type != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ ecs_assert(elem_type->size * params.count <= INT32_MAX,
+ ECS_INVALID_PARAMETER, NULL);
+
+ e = ecs_set(world, 0, EcsMetaType, {
+ EcsArrayType, (int32_t)(elem_type->size * params.count),
+ elem_type->alignment, NULL, NULL
+ });
+ }
+
+ ecs_assert(params.count <= INT32_MAX, ECS_INVALID_PARAMETER, NULL);
+
+ return ecs_set(world, e, EcsArray, { element_type, (int32_t)params.count });
+}
+
+ecs_entity_t ecs_meta_lookup_vector(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ const char *params_decl,
+ ecs_meta_parse_ctx_t *ctx)
+{
+ ecs_meta_parse_ctx_t param_ctx = {
+ .name = ctx->name,
+ .decl = params_decl
+ };
+
+ ecs_meta_params_t params;
+ ecs_meta_parse_params(params_decl, ¶ms, ¶m_ctx);
+ if (params.is_key_value) {
+ ecs_meta_error(ctx, params_decl,
+ "unexpected key value parameters for vector");
+ }
+
+ ecs_entity_t element_type = ecs_meta_lookup(
+ world, ¶ms.type, params_decl, 1, ¶m_ctx);
+
+ if (!e) {
+ e = ecs_set(world, 0, EcsMetaType, {EcsVectorType, 0, 0, NULL, NULL});
+ }
+
+ return ecs_set(world, e, EcsVector, { element_type });
+}
+
+ecs_entity_t ecs_meta_lookup_map(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ const char *params_decl,
+ ecs_meta_parse_ctx_t *ctx)
+{
+ ecs_meta_parse_ctx_t param_ctx = {
+ .name = ctx->name,
+ .decl = params_decl
+ };
+
+ ecs_meta_params_t params;
+ ecs_meta_parse_params(params_decl, ¶ms, ¶m_ctx);
+ if (!params.is_key_value) {
+ ecs_meta_error(ctx, params_decl,
+ "missing key type for map");
+ }
+
+ ecs_entity_t key_type = ecs_meta_lookup(
+ world, ¶ms.key_type, params_decl, 1, ¶m_ctx);
+
+ ecs_entity_t element_type = ecs_meta_lookup(
+ world, ¶ms.type, params_decl, 1, ¶m_ctx);
+
+ if (!e) {
+ e = ecs_set(world, 0, EcsMetaType, {EcsMapType, 0, 0, NULL, NULL});
+ }
+
+ return ecs_set(world, e, EcsMap, { key_type, element_type });
+}
+
+ecs_entity_t ecs_meta_lookup_bitmask(
+ ecs_world_t *world,
+ ecs_entity_t e,
+ const char *params_decl,
+ ecs_meta_parse_ctx_t *ctx)
+{
+ (void)e;
+
+ ecs_meta_parse_ctx_t param_ctx = {
+ .name = ctx->name,
+ .decl = params_decl
+ };
+
+ ecs_meta_params_t params;
+ ecs_meta_parse_params(params_decl, ¶ms, ¶m_ctx);
+ if (params.is_key_value) {
+ ecs_meta_error(ctx, params_decl,
+ "unexpected key value parameters for bitmask");
+ }
+
+ if (params.is_fixed_size) {
+ ecs_meta_error(ctx, params_decl,
+ "unexpected size for bitmask");
+ }
+
+ ecs_entity_t bitmask_type = ecs_meta_lookup(
+ world, ¶ms.type, params_decl, 1, ¶m_ctx);
+ ecs_assert(bitmask_type != 0, ECS_INVALID_PARAMETER, NULL);
+
+#ifndef NDEBUG
+ /* Make sure this is a bitmask type */
+ const EcsMetaType *type_ptr = ecs_get(world, bitmask_type, EcsMetaType);
+ ecs_assert(type_ptr != NULL, ECS_INVALID_PARAMETER, NULL);
+ ecs_assert(type_ptr->kind == EcsBitmaskType, ECS_INVALID_PARAMETER, NULL);
+#endif
+
+ return bitmask_type;
+}
+
+ecs_entity_t ecs_meta_lookup(
+ ecs_world_t *world,
+ ecs_meta_type_t *token,
+ const char *ptr,
+ int64_t count,
+ ecs_meta_parse_ctx_t *ctx)
+{
+ ecs_assert(world != NULL, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(token != NULL, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(ptr != NULL, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(ctx != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ const char *typename = token->type;
+ ecs_entity_t type = 0;
+
+ /* Parse vector type */
+ if (!strcmp(typename, "ecs_array")) {
+ type = ecs_meta_lookup_array(world, 0, token->params, ctx);
+
+ } else if (!strcmp(typename, "ecs_vector") || !strcmp(typename, "flecs::vector")) {
+ type = ecs_meta_lookup_vector(world, 0, token->params, ctx);
+
+ } else if (!strcmp(typename, "ecs_map") | !strcmp(typename, "flecs::map")) {
+ type = ecs_meta_lookup_map(world, 0, token->params, ctx);
+
+ } else if (!strcmp(typename, "flecs::bitmask")) {
+ type = ecs_meta_lookup_bitmask(world, 0, token->params, ctx);
+
+ } else if (!strcmp(typename, "flecs::byte")) {
+ type = ecs_lookup(world, "ecs_byte_t");
+
+ } else {
+ if (token->is_ptr && !strcmp(typename, "char")) {
+ typename = "ecs_string_t";
+ } else
+ if (token->is_ptr) {
+ typename = "uintptr_t";
+ } else
+ if (!strcmp(typename, "char*") || !strcmp(typename, "flecs::string")) {
+ typename = "ecs_string_t";
+ }
+
+ type = ecs_lookup_symbol(world, typename, true);
+ if (!type) {
+ ecs_meta_error(ctx, ptr, "unknown type '%s'", typename);
+ return 0;
+ }
+ }
+
+ if (count != 1) {
+ /* If count is not 1, insert array type. First lookup EcsMetaType of the
+ * element type to get the size and alignment. Then create a new
+ * entity for the array type, and assign it to the member type. */
+ const EcsMetaType *type_ptr = ecs_get(world, type, EcsMetaType);
+
+ ecs_assert(count <= INT32_MAX, ECS_INVALID_PARAMETER, NULL);
+
+ type = ecs_set(world, ecs_set(world, 0,
+ EcsMetaType, {EcsArrayType, type_ptr->size, type_ptr->alignment, NULL, NULL}),
+ EcsArray, {type, (int32_t)count});
+ }
+
+ return type;
+}
+
+static
+ecs_meta_scope_t* get_scope(
+ ecs_meta_cursor_t *cursor)
+{
+ ecs_assert(cursor != NULL, ECS_INVALID_PARAMETER, NULL);
+ return &cursor->scope[cursor->depth];
+}
+
+static
+ecs_type_op_t* get_op(
+ ecs_meta_scope_t *scope)
+{
+ ecs_type_op_t *ops = ecs_vector_first(scope->ops, ecs_type_op_t);
+ ecs_assert(ops != NULL, ECS_INVALID_PARAMETER, NULL);
+ return &ops[scope->cur_op];
+}
+
+static
+ecs_type_op_t* get_ptr(
+ ecs_meta_scope_t *scope)
+{
+ ecs_type_op_t *op = get_op(scope);
+
+ if (scope->vector) {
+ _ecs_vector_set_min_count(&scope->vector, ECS_VECTOR_U(op->size, op->alignment), scope->cur_elem + 1);
+ scope->base = ecs_vector_first_t(scope->vector, op->size, op->alignment);
+ }
+
+ return ECS_OFFSET(scope->base, op->offset + op->size * scope->cur_elem);
+}
+
+ecs_meta_cursor_t ecs_meta_cursor(
+ const ecs_world_t *world,
+ ecs_entity_t type,
+ void *base)
+{
+ ecs_assert(world != NULL, ECS_INVALID_PARAMETER, NULL);
+ ecs_assert(type != 0, ECS_INVALID_PARAMETER, NULL);
+ ecs_assert(base != NULL, ECS_INVALID_PARAMETER, NULL);
+
+ ecs_meta_cursor_t result;
+
+ const EcsMetaTypeSerializer *ser = ecs_get(world, type, EcsMetaTypeSerializer);
+ ecs_assert(ser != NULL, ECS_INVALID_PARAMETER, NULL);
+
+#ifndef NDEBUG
+ ecs_type_op_t *ops = ecs_vector_first(ser->ops, ecs_type_op_t);
+ ecs_assert(ops != NULL, ECS_INVALID_PARAMETER, NULL);
+ ecs_assert(ops[0].kind == EcsOpHeader, ECS_INVALID_PARAMETER, NULL);
+#endif
+
+ result.world = world;
+ result.depth = 0;
+ result.scope[0].type = type;
+ result.scope[0].ops = ser->ops;
+ result.scope[0].start = 1;
+ result.scope[0].cur_op = 1;
+ result.scope[0].cur_elem = 0;
+ result.scope[0].base = base;
+ result.scope[0].is_collection = false;
+ result.scope[0].count = 0;
+ result.scope[0].vector = NULL;
+
+ return result;
+}
+
+void* ecs_meta_get_ptr(
+ ecs_meta_cursor_t *cursor)
+{
+ return get_ptr(cursor->scope);
+}
+
+int ecs_meta_next(
+ ecs_meta_cursor_t *cursor)
+{
+ ecs_meta_scope_t *scope = get_scope(cursor);
+ int32_t ops_count = ecs_vector_count(scope->ops);
+
+ if (scope->count) {
+ if (scope->cur_op >= scope->count) {
+ return -1;
+ }
+ } else {
+ if (scope->cur_op >= ops_count) {
+ return -1;
+ }
+ }
+
+ if (scope->is_collection) {
+ scope->cur_op = 1;
+ scope->cur_elem ++;
+
+ if (scope->count) {
+ if (scope->cur_elem >= scope->count) {
+ return -1;
+ }
+ }
+ } else {
+ scope->cur_op ++;
+ }
+
+ return 0;
+}
+
+int ecs_meta_move(
+ ecs_meta_cursor_t *cursor,
+ int32_t pos)
+{
+ ecs_meta_scope_t *scope = get_scope(cursor);
+ int32_t ops_count = ecs_vector_count(scope->ops);
+
+ if(pos < 0) return -1;
+
+ if (scope->is_collection) {
+ if (scope->count) {
+ if (pos >= scope->count) {
+ return -1;
+ }
+
+ scope->cur_op = 1;
+ scope->cur_elem = pos;
+ }
+ } else {
+ if (pos >= ops_count) {
+ return -1;
+ }
+ scope->cur_op = scope->start + pos;
+ }
+
+ return 0;
+}
+
+int ecs_meta_move_name(
+ ecs_meta_cursor_t *cursor,
+ const char *name)
+{
+ ecs_meta_scope_t *scope = get_scope(cursor);
+ ecs_type_op_t *ops = ecs_vector_first(scope->ops, ecs_type_op_t);
+ int32_t i, ops_count = ecs_vector_count(scope->ops);
+ int32_t depth = 1;
+
+ for (i = scope->start; i < ops_count; i ++) {
+ ecs_type_op_t *op = &ops[i];
+
+ if (depth <= 1) {
+ if (op->name && !strcmp(op->name, name)) {
+ scope->cur_op = i;
+ return 0;
+ }
+ }
+
+ if (op->kind == EcsOpPush) {
+ depth ++;
+ }
+
+ if (op->kind == EcsOpPop) {
+ depth --;
+ if (depth < 0) {
+ return -1;
+ }
+ }
+ }
+
+ return -1;
+}
+
+int ecs_meta_push(
+ ecs_meta_cursor_t *cursor)
+{
+ ecs_meta_scope_t *scope = get_scope(cursor);
+ ecs_type_op_t *op = get_op(scope);
+
+ if (scope->vector) {
+ /* This makes sure the vector has enough space for the pushed element */
+ get_ptr(scope);
+ }
+
+ scope->cur_op ++;
+ cursor->depth ++;
+ ecs_meta_scope_t *child_scope = get_scope(cursor);
+ child_scope->cur_elem = 0;
+
+ switch(op->kind) {
+ case EcsOpPush: {
+ child_scope->base = ECS_OFFSET(scope->base, op->size * scope->cur_elem);
+ child_scope->start = scope->cur_op;
+ child_scope->cur_op = scope->cur_op;
+ child_scope->ops = scope->ops;
+ child_scope->is_collection = false;
+ child_scope->count = 0;
+ child_scope->vector = NULL;
+ break;
+ }
+ case EcsOpArray:
+ case EcsOpVector: {
+ void *ptr = ECS_OFFSET(scope->base, op->offset);
+ const EcsMetaTypeSerializer *ser = ecs_get_ref_w_entity(cursor->world,
+ &op->is.collection, 0, 0);
+ ecs_assert(ser != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ ecs_vector_t *ops = ser->ops;
+
+ if (op->kind == EcsOpArray) {
+ child_scope->base = ptr;
+ child_scope->count = op->count;
+ child_scope->vector = NULL;
+ } else {
+ ecs_vector_t *v = *(ecs_vector_t**)ptr;
+ if (!v) {
+ v = ecs_vector_new_t(op->size, op->alignment, 2);
+ } else {
+ ecs_vector_set_count_t(&v, op->size, op->alignment, 0);
+ }
+
+ child_scope->base = ecs_vector_first_t(v, op->size, op->alignment);
+ child_scope->count = 0;
+ child_scope->vector = v;
+ }
+ child_scope->start = 1;
+ child_scope->cur_op = 1;
+ child_scope->ops = ops;
+ child_scope->is_collection = true;
+#ifndef NDEBUG
+ ecs_type_op_t *hdr = ecs_vector_first(child_scope->ops, ecs_type_op_t);
+ ecs_assert(hdr->kind == EcsOpHeader, ECS_INTERNAL_ERROR, NULL);
+#endif
+ }
+ break;
+ default:
+ return -1;
+ }
+
+ return 0;
+}
+
+int ecs_meta_pop(
+ ecs_meta_cursor_t *cursor)
+{
+ ecs_meta_scope_t *scope = get_scope(cursor);
+ ecs_type_op_t *ops = ecs_vector_first(scope->ops, ecs_type_op_t);
+ int32_t i, ops_count = ecs_vector_count(scope->ops);
+
+ if (scope->is_collection) {
+ cursor->depth --;
+ if (scope->vector) {
+ /* Vector ptr may have changed, so reassign vector field */
+ ecs_meta_scope_t *parent_scope = get_scope(cursor);
+ parent_scope->cur_op --;
+ void *ptr = get_ptr(parent_scope);
+ *(ecs_vector_t**)ptr = scope->vector;
+ parent_scope->cur_op ++;
+ }
+ return 0;
+ } else {
+ for (i = scope->cur_op; i < ops_count; i ++) {
+ ecs_type_op_t *op = &ops[i];
+ if (op->kind == EcsOpPop) {
+ cursor->depth -- ;
+ ecs_meta_scope_t *parent_scope = get_scope(cursor);
+ if (parent_scope->is_collection) {
+ parent_scope->cur_op = 1;
+ parent_scope->cur_elem ++;
+ } else {
+ parent_scope->cur_op = i;
+ }
+ return 0;
+ }
+ }
+ }
+
+ return -1;
+}
+
+int ecs_meta_set_bool(
+ ecs_meta_cursor_t *cursor,
+ bool value)
+{
+ ecs_meta_scope_t *scope = get_scope(cursor);
+ ecs_type_op_t *op = get_op(scope);
+
+ if (op->kind != EcsOpPrimitive || op->is.primitive != EcsBool) {
+ return -1;
+ } else {
+ void *ptr = get_ptr(scope);
+ *(bool*)ptr = value;
+ return 0;
+ }
+}
+
+int ecs_meta_set_char(
+ ecs_meta_cursor_t *cursor,
+ char value)
+{
+ ecs_meta_scope_t *scope = get_scope(cursor);
+ ecs_type_op_t *op = get_op(scope);
+
+ if (op->kind != EcsOpPrimitive || op->is.primitive != EcsChar) {
+ return -1;
+ } else {
+ void *ptr = get_ptr(scope);
+ *(char*)ptr = value;
+ return 0;
+ }
+}
+
+int ecs_meta_set_int(
+ ecs_meta_cursor_t *cursor,
+ int64_t value)
+{
+ ecs_meta_scope_t *scope = get_scope(cursor);
+ ecs_type_op_t *op = get_op(scope);
+
+ ecs_primitive_kind_t primitive = op->is.primitive;
+
+ if (op->kind != EcsOpPrimitive) {
+ if (op->kind == EcsOpEnum || op->kind == EcsOpBitmask) {
+ primitive = EcsI32;
+ } else {
+ return -1;
+ }
+ }
+
+ void *ptr = get_ptr(scope);
+
+ switch(primitive) {
+ case EcsBool:
+ if (value > 1 || value < 0) {
+ return -1;
+ }
+ *(bool*)ptr = (bool)value;
+ break;
+ case EcsI8:
+ case EcsChar:
+ if (value > INT8_MAX || value < INT8_MIN) {
+ return -1;
+ }
+ *(int8_t*)ptr = (int8_t)value;
+ break;
+ case EcsU8:
+ case EcsByte:
+ if (value > UINT8_MAX || value < INT8_MIN) {
+ return -1;
+ }
+ *(uint8_t*)ptr = (uint8_t)value;
+ break;
+ case EcsI16:
+ if (value > INT16_MAX || value < INT16_MIN) {
+ return -1;
+ }
+ *(int16_t*)ptr = (int16_t)value;
+ break;
+ case EcsU16:
+ if (value > UINT16_MAX || value < INT16_MIN) {
+ return -1;
+ }
+ *(uint16_t*)ptr = (uint16_t)value;
+ break;
+ case EcsI32:
+ if (value > INT32_MAX || value < INT32_MIN) {
+ return -1;
+ }
+ *(int32_t*)ptr = (int32_t)value;
+ break;
+ case EcsU32:
+ if (value > UINT32_MAX || value < INT32_MIN) {
+ return -1;
+ }
+ *(uint32_t*)ptr = (uint32_t)value;
+ break;
+ case EcsI64:
+ if (value > INT64_MAX) {
+ return -1;
+ }
+ *(int64_t*)ptr = (int64_t)value;
+ break;
+ case EcsU64:
+ *(uint64_t*)ptr = (uint64_t)value;
+ break;
+ case EcsEntity:
+ *(ecs_entity_t*)ptr = (ecs_entity_t)value;
+ break;
+ case EcsF32:
+ if (value > ((1 << 24)-1) || value < -(1 << 24)) {
+ return -1;
+ }
+ *(float*)ptr = (float)value;
+ break;
+ case EcsF64:
+ if (value > ((1LL << 53)-1) || value < -(1LL << 53)) {
+ return -1;
+ }
+ *(double*)ptr = (double)value;
+ break;
+ case EcsIPtr:
+ if (value > INTPTR_MAX) {
+ return -1;
+ }
+ *(intptr_t*)ptr = (intptr_t)value;
+ break;
+ case EcsUPtr:
+ *(uintptr_t*)ptr = (uintptr_t)value;
+ break;
+ default:
+ if(!value) return ecs_meta_set_null(cursor);
+ return -1;
+ }
+
+ return 0;
+}
+
+int ecs_meta_set_uint(
+ ecs_meta_cursor_t *cursor,
+ uint64_t value)
+{
+ ecs_meta_scope_t *scope = get_scope(cursor);
+ ecs_type_op_t *op = get_op(scope);
+
+ if (op->kind != EcsOpPrimitive) {
+ return -1;
+ } else {
+ void *ptr = get_ptr(scope);
+
+ switch(op->is.primitive) {
+ case EcsU8:
+ case EcsByte:
+ if (value > UINT8_MAX) {
+ return -1;
+ }
+ *(uint8_t*)ptr = (uint8_t)value;
+ break;
+ case EcsU16:
+ if (value > UINT16_MAX) {
+ return -1;
+ }
+ *(uint16_t*)ptr = (uint16_t)value;
+ break;
+ case EcsU32:
+ if (value > UINT32_MAX) {
+ return -1;
+ }
+ *(uint32_t*)ptr = (uint32_t)value;
+ break;
+ case EcsU64:
+ if (value > UINT64_MAX) {
+ return -1;
+ }
+ *(uint64_t*)ptr = (uint64_t)value;
+ break;
+ case EcsUPtr:
+ if (value > UINTPTR_MAX) {
+ return -1;
+ }
+ *(uintptr_t*)ptr = (uintptr_t)value;
+ break;
+ case EcsEntity:
+ *(ecs_entity_t*)ptr = value;
+ break;
+ default:
+ if(!value) return ecs_meta_set_null(cursor);
+ return -1;
+ }
+
+ return 0;
+ }
+}
+
+int ecs_meta_set_float(
+ ecs_meta_cursor_t *cursor,
+ double value)
+{
+ ecs_meta_scope_t *scope = get_scope(cursor);
+ ecs_type_op_t *op = get_op(scope);
+
+ if (op->kind != EcsOpPrimitive) {
+ return -1;
+ } else {
+ void *ptr = get_ptr(scope);
+
+ switch(op->is.primitive) {
+ case EcsF32:
+ *(float*)ptr = (float)value;
+ break;
+ case EcsF64:
+ *(double*)ptr = value;
+ break;
+ default:
+ return -1;
+ break;
+ }
+
+ return 0;
+ }
+}
+
+int ecs_meta_set_string(
+ ecs_meta_cursor_t *cursor,
+ const char *value)
+{
+ ecs_meta_scope_t *scope = get_scope(cursor);
+ ecs_type_op_t *op = get_op(scope);
+
+ if (op->kind != EcsOpPrimitive) {
+ return -1;
+ } else {
+ void *ptr = get_ptr(scope);
+
+ switch(op->is.primitive) {
+ case EcsString:
+ if (*(char**)ptr) {
+ ecs_os_free(*(char**)ptr);
+ }
+ if (value) {
+ *(char**)ptr = ecs_os_strdup(value);
+ } else {
+ *(char**)ptr = NULL;
+ }
+ break;
+ default:
+ return -1;
+ break;
+ }
+
+ return 0;
+ }
+}
+
+int ecs_meta_set_entity(
+ ecs_meta_cursor_t *cursor,
+ ecs_entity_t value)
+{
+ ecs_meta_scope_t *scope = get_scope(cursor);
+ ecs_type_op_t *op = get_op(scope);
+
+ if (op->kind != EcsOpPrimitive) {
+ return -1;
+ } else {
+ void *ptr = get_ptr(scope);
+
+ switch(op->is.primitive) {
+ case EcsEntity:
+ *(ecs_entity_t*)ptr = value;
+ break;
+ default:
+ return -1;
+ break;
+ }
+
+ return 0;
+ }
+}
+
+int ecs_meta_set_null(
+ ecs_meta_cursor_t *cursor)
+{
+ ecs_meta_scope_t *scope = get_scope(cursor);
+ ecs_type_op_t *op = get_op(scope);
+
+ switch(op->kind) {
+ case EcsOpPrimitive: {
+ if (op->is.primitive != EcsString) {
+ return -1;
+ }
+
+ void *ptr = get_ptr(scope);
+ char *str = *(char**)ptr;
+ if (str) {
+ ecs_os_free(str);
+ }
+
+ *(char**)ptr = NULL;
+ break;
+ }
+
+ case EcsOpVector: {
+ void *ptr = get_ptr(scope);
+ ecs_vector_t *vec = *(ecs_vector_t**)ptr;
+ if (vec) {
+ ecs_vector_free(vec);
+ }
+
+ *(ecs_vector_t**)ptr = NULL;
+ break;
+ }
+
+ default:
+ return -1;
+ break;
+ }
+
+ return 0;
+}
+#include <stdio.h>
+#include <ctype.h>
+
+static
+const char* skip_ws(const char *ptr) {
+ while (isspace(*ptr)) {
+ ptr ++;
+ }
+
+ return ptr;
+}
+
+static
+const char* skip_scope(const char *ptr, ecs_meta_parse_ctx_t *ctx) {
+ /* Keep track of which characters were used to open the scope */
+ char stack[256];
+ int32_t sp = 0;
+ char ch;
+
+ while ((ch = *ptr)) {
+ if (ch == '(') {
+ stack[sp++] = ch;
+ } else if (ch == '<') {
+ stack[sp++] = ch;
+ } else if (ch == '>') {
+ if (stack[--sp] != '<') {
+ ecs_meta_error(ctx, ptr, "mismatching < > in type definition");
+ }
+ } else if (ch == ')') {
+ if (stack[--sp] != '(') {
+ ecs_meta_error(ctx, ptr, "mismatching ( ) in type definition");
+ }
+ }
+
+ ptr ++;
+
+ if (!sp) {
+ break;
+ }
+ }
+
+ return ptr;
+}
+
+static
+const char* parse_digit(
+ const char *ptr,
+ int64_t *value_out,
+ ecs_meta_parse_ctx_t *ctx)
+{
+ ptr = skip_ws(ptr);
+
+ if (!isdigit(*ptr) && *ptr != '-') {
+ ecs_meta_error(ctx, ptr, "expected number, got %c", *ptr);
+ }
+
+ *value_out = strtol(ptr, NULL, 0);
+
+ if (ptr[0] == '-') {
+ ptr ++;
+ } else
+ if (ptr[0] == '0' && ptr[1] == 'x') {
+ ptr += 2;
+ }
+
+ while (isdigit(*ptr)) {
+ ptr ++;
+ }
+
+ return skip_ws(ptr);
+}
+
+static
+const char* parse_identifier(
+ const char *ptr,
+ char *buff,
+ char *params,
+ ecs_meta_parse_ctx_t *ctx)
+{
+ ecs_assert(ptr != NULL, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(buff != NULL, ECS_INTERNAL_ERROR, NULL);
+ ecs_assert(ctx != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ char *bptr = buff, ch;
+
+ if (params) {
+ params[0] = '\0';
+ }
+
+ /* Ignore whitespaces */
+ ptr = skip_ws(ptr);
+
+ if (!isalpha(*ptr)) {
+ ecs_meta_error(ctx, ptr,
+ "invalid identifier (starts with '%c')", *ptr);
+ }
+
+ while ((ch = *ptr) && !isspace(ch) && ch != ';' && ch != ',' && ch != ')' && ch != '>') {
+ /* Type definitions can contain macro's or templates */
+ if (ch == '(' || ch == '<') {
+ if (!params) {
+ ecs_meta_error(ctx, ptr, "unexpected %c", *ptr);
+ }
+
+ const char *end = skip_scope(ptr, ctx);
+ ecs_os_strncpy(params, ptr, (ecs_size_t)(end - ptr));
+ params[end - ptr] = '\0';
+
+ ptr = end;
+ } else {
+ *bptr = ch;
+ bptr ++;
+ ptr ++;
+ }
+ }
+
+ *bptr = '\0';
+
+ if (!ch) {
+ ecs_meta_error(ctx, ptr, "unexpected end of token");
+ }
+
+ return ptr;
+}
+
+static
+const char * ecs_meta_open_scope(
+ const char *ptr,
+ ecs_meta_parse_ctx_t *ctx)
+{
+ /* Skip initial whitespaces */
+ ptr = skip_ws(ptr);
+
+ /* Is this the start of the type definition? */
+ if (ctx->decl == ptr) {
+ if (*ptr != '{') {
+ ecs_meta_error(ctx, ptr, "missing '{' in struct definition");
+ }
+
+ ptr ++;
+ ptr = skip_ws(ptr);
+ }
+
+ /* Is this the end of the type definition? */
+ if (!*ptr) {
+ ecs_meta_error(ctx, ptr, "missing '}' at end of struct definition");
+ }
+
+ /* Is this the end of the type definition? */
+ if (*ptr == '}') {
+ ptr = skip_ws(ptr + 1);
+ if (*ptr) {
+ ecs_meta_error(ctx, ptr,
+ "stray characters after struct definition");
+ }
+ return NULL;
+ }
+
+ return ptr;
+}
+
+const char* ecs_meta_parse_constant(
+ const char *ptr,
+ ecs_meta_constant_t *token,
+ ecs_meta_parse_ctx_t *ctx)
+{
+ ptr = ecs_meta_open_scope(ptr, ctx);
+ if (!ptr) {
+ return NULL;
+ }
+
+ token->is_value_set = false;
+
+ /* Parse token, constant identifier */
+ ptr = parse_identifier(ptr, token->name, NULL, ctx);
+ ptr = skip_ws(ptr);
+
+ /* Explicit value assignment */
+ if (*ptr == '=') {
+ int64_t value = 0;
+ ptr = parse_digit(ptr + 1, &value, ctx);
+ token->value = value;
+ token->is_value_set = true;
+ }
+
+ /* Expect a ',' or '}' */
+ if (*ptr != ',' && *ptr != '}') {
+ ecs_meta_error(ctx, ptr, "missing , after enum constant");
+ }
+
+ if (*ptr == ',') {
+ return ptr + 1;
+ } else {
+ return ptr;
+ }
+}
+
+static
+const char* ecs_meta_parse_type(
+ const char *ptr,
+ ecs_meta_type_t *token,
+ ecs_meta_parse_ctx_t *ctx)
+{
+ token->is_ptr = false;
+ token->is_const = false;
+
+ ptr = skip_ws(ptr);
+
+ /* Parse token, expect type identifier or ECS_PROPERTY */
+ ptr = parse_identifier(ptr, token->type, token->params, ctx);
+
+ if (!strcmp(token->type, "ECS_PRIVATE")) {
+ /* Members from this point are not stored in metadata */
+ return NULL;
+ }
+
+ /* If token is const, set const flag and continue parsing type */
+ if (!strcmp(token->type, "const")) {
+ token->is_const = true;
+
+ /* Parse type after const */
+ ptr = parse_identifier(ptr + 1, token->type, token->params, ctx);
+ }
+
+ /* Check if type is a pointer */
+ ptr = skip_ws(ptr);
+ if (*ptr == '*') {
+ token->is_ptr = true;
+ ptr ++;
+ }
+
+ return ptr;
+}
+
+const char* ecs_meta_parse_member(
+ const char *ptr,
+ ecs_meta_member_t *token,
+ ecs_meta_parse_ctx_t *ctx)
+{
+ ptr = ecs_meta_open_scope(ptr, ctx);
+ if (!ptr) {
+ return NULL;
+ }
+
+ token->count = 1;
+ token->is_partial = false;
+
+ /* Parse member type */
+ ptr = ecs_meta_parse_type(ptr, &token->type, ctx);
+ if (!ptr) {
+ /* If NULL is returned, parsing should stop */
+ token->is_partial = true;
+ return NULL;
+ }
+
+ /* Next token is the identifier */
+ ptr = parse_identifier(ptr, token->name, NULL, ctx);
+
+ /* Skip whitespace between member and [ or ; */
+ ptr = skip_ws(ptr);
+
+ /* Check if this is an array */
+ char *array_start = strchr(token->name, '[');
+ if (!array_start) {
+ /* If the [ was separated by a space, it will not be parsed as part of
+ * the name */
+ if (*ptr == '[') {
+ array_start = (char*)ptr; /* safe, will not be modified */
+ }
+ }
+
+ if (array_start) {
+ /* Check if the [ matches with a ] */
+ char *array_end = strchr(array_start, ']');
+ if (!array_end) {
+ ecs_meta_error(ctx, ptr, "missing ']'");
+
+ } else if (array_end - array_start == 0) {
+ ecs_meta_error(ctx, ptr, "dynamic size arrays are not supported");
+ }
+
+ token->count = atoi(array_start + 1);
+
+ if (array_start == ptr) {
+ /* If [ was found after name, continue parsing after ] */
+ ptr = array_end + 1;
+ } else {
+ /* If [ was fonud in name, replace it with 0 terminator */
+ array_start[0] = '\0';
+ }
+ }
+
+ /* Expect a ; */
+ if (*ptr != ';') {
+ ecs_meta_error(ctx, ptr, "missing ; after member declaration");
+ }
+
+ return ptr + 1;
+}
+
+void ecs_meta_parse_params(
+ const char *ptr,
+ ecs_meta_params_t *token,
+ ecs_meta_parse_ctx_t *ctx)
+{
+ token->is_key_value = false;
+ token->is_fixed_size = false;
+
+ ptr = skip_ws(ptr);
+ if (*ptr != '(' && *ptr != '<') {
+ ecs_meta_error(ctx, ptr,
+ "expected '(' at start of collection definition");
+ }
+
+ ptr ++;
+
+ /* Parse type identifier */
+ ptr = ecs_meta_parse_type(ptr, &token->type, ctx);
+ ptr = skip_ws(ptr);
+
+ /* If next token is a ',' the first type was a key type */
+ if (*ptr == ',') {
+ ptr = skip_ws(ptr + 1);
+
+ if (isdigit(*ptr)) {
+ int64_t value;
+ ptr = parse_digit(ptr, &value, ctx);
+ token->count = value;
+ token->is_fixed_size = true;
+ } else {
+ token->key_type = token->type;
+
+ /* Parse element type */
+ ptr = ecs_meta_parse_type(ptr, &token->type, ctx);
+ ptr = skip_ws(ptr);
+
+ token->is_key_value = true;
+ }
+ }
+
+ if (*ptr != ')' && *ptr != '>') {
+ ecs_meta_error(ctx, ptr,
+ "expected ')' at end of collection definition");
+ }
+}
diff --git a/vendor/flecs/modules/src/flecs_monitor.c b/vendor/flecs/modules/src/flecs_monitor.c
new file mode 100644
index 0000000000000000000000000000000000000000..9e7f6cfdcc4a16a9423b9d025825bde761fcb2b5
--- /dev/null
+++ b/vendor/flecs/modules/src/flecs_monitor.c
@@ -0,0 +1,450 @@
+#ifndef FLECS_MONITOR_IMPL
+#include "flecs_monitor.h"
+#endif
+
+typedef struct WorldStats {
+ ecs_world_stats_t stats;
+} WorldStats;
+
+typedef struct DeltaTime {
+ ecs_gauge_t frame;
+ ecs_gauge_t minute;
+ int32_t t_frame;
+ int32_t t_minute;
+} DeltaTime;
+
+typedef struct PipelineStats {
+ ecs_pipeline_stats_t stats;
+} PipelineStats;
+
+static ECS_COMPONENT_DECLARE(WorldStats);
+static ECS_COMPONENT_DECLARE(DeltaTime);
+static ECS_COMPONENT_DECLARE(PipelineStats);
+
+static void add_float_array(
+ ecs_strbuf_t *r,
+ int32_t t_start,
+ const float *values,
+ float scale)
+{
+ ecs_strbuf_list_push(r, "[", ",");
+
+ int32_t i;
+ for (i = 0; i < ECS_STAT_WINDOW; i ++) {
+ int32_t t = (t_start + i + 1) % ECS_STAT_WINDOW;
+ ecs_strbuf_list_append(r, "%f", (double)(values[t] / scale));
+ }
+
+ ecs_strbuf_list_pop(r, "]");
+}
+
+static void add_gauge(
+ ecs_strbuf_t *r,
+ const char *name,
+ int32_t t,
+ const ecs_gauge_t *m,
+ bool min_max,
+ float scale)
+{
+ ecs_strbuf_list_append(r, "\"%s\":", name);
+ ecs_strbuf_list_push(r, "{", ",");
+ ecs_strbuf_list_append(r, "\"avg\":");
+ add_float_array(r, t, m->avg, scale);
+
+ if (min_max) {
+ ecs_strbuf_list_append(r, "\"min\":");
+ add_float_array(r, t, m->min, scale);
+ ecs_strbuf_list_append(r, "\"max\":");
+ add_float_array(r, t, m->max, scale);
+ }
+
+ ecs_strbuf_list_pop(r, "}");
+}
+
+static void add_counter(
+ ecs_strbuf_t *r,
+ const char *name,
+ int32_t t,
+ const ecs_counter_t *m,
+ bool min_max,
+ float scale)
+{
+ add_gauge(r, name, t, &m->rate, min_max, scale);
+}
+
+#define add_current(r, name, t, m, scale)\
+ _add_current(r, name, t, (ecs_gauge_t*)m, scale)
+
+static void _add_current(
+ ecs_strbuf_t *r,
+ const char *name,
+ int32_t t,
+ const ecs_gauge_t *m,
+ float scale)
+{
+ ecs_strbuf_list_append(r, "\"%s\":%f", name, (double)(m->avg[t] / scale));
+}
+
+static void add_world_stats(
+ ecs_world_t *world,
+ ecs_strbuf_t *r)
+{
+ const WorldStats *s = ecs_get(world, ecs_typeid(WorldStats), WorldStats);
+ if (!s) {
+ return;
+ }
+
+ const DeltaTime *s_dt = ecs_get(world, ecs_typeid(DeltaTime), DeltaTime);
+ if (!s_dt) {
+ return;
+ }
+
+ const ecs_world_stats_t *stats = &s->stats;
+ int32_t t = stats->t;
+
+ float df = stats->frame_count_total.rate.avg[t];
+ if (df == 0.0f) {
+ return;
+ }
+
+ ecs_strbuf_list_appendstr(r, "\"world\":");
+ ecs_strbuf_list_push(r, "{", ",");
+
+ ecs_strbuf_list_appendstr(r, "\"current\":");
+ ecs_strbuf_list_push(r, "{", ",");
+ add_current(r, "entity_count", t, &stats->entity_count, 1.0);
+ add_current(r, "component_count", t, &stats->component_count, 1.0);
+ add_current(r, "query_count", t, &stats->query_count, 1.0);
+ add_current(r, "system_count", t, &stats->system_count, 1.0);
+ add_current(r, "table_count", t, &stats->table_count, 1.0);
+ add_current(r, "empty_table_count", t, &stats->empty_table_count, 1.0);
+ add_current(r, "singleton_table_count", t, &stats->singleton_table_count, 1.0);
+ add_current(r, "matched_table_count", t, &stats->matched_table_count, 1.0);
+ add_current(r, "matched_entity_count", t, &stats->matched_entity_count, 1.0);
+ add_current(r, "systems_ran", t, &stats->systems_ran_frame, df);
+ add_current(r, "new_count", t, &stats->new_count, 1.0);
+ add_current(r, "bulk_new_count", t, &stats->bulk_new_count, 1.0);
+ add_current(r, "delete_count", t, &stats->delete_count, 1.0);
+ add_current(r, "clear_count", t, &stats->clear_count, 1.0);
+ add_current(r, "add_count", t, &stats->add_count, 1.0);
+ add_current(r, "remove_count", t, &stats->remove_count, 1.0);
+ add_current(r, "set_count", t, &stats->set_count, 1.0);
+ add_current(r, "discard_count", t, &stats->discard_count, 1.0);
+ ecs_strbuf_list_pop(r, "}");
+
+ ecs_strbuf_list_appendstr(r, "\"history_1m\":");
+ ecs_strbuf_list_push(r, "{", ",");
+ add_gauge(r, "fps", t, &stats->fps, false, 1.0);
+ add_gauge(r, "delta_time", t, &s_dt->minute, true, 1.0);
+ add_counter(r, "frame_time_total", t, &stats->frame_time_total, false, df);
+ add_counter(r, "system_time_total", t, &stats->system_time_total, false, df);
+ add_counter(r, "merge_time_total", t, &stats->merge_time_total, false, df);
+ add_gauge(r, "entity_count", t, &stats->entity_count, false, 1.0);
+ add_gauge(r, "matched_entity_count", t, &stats->matched_entity_count, false, 1.0);
+ add_gauge(r, "table_count", t, &stats->table_count, false, 1.0);
+ add_gauge(r, "empty_table_count", t, &stats->empty_table_count, false, 1.0);
+ add_gauge(r, "singleton_table_count", t, &stats->singleton_table_count, false, 1.0);
+ add_gauge(r, "matched_table_count", t, &stats->matched_table_count, false, 1.0);
+ add_counter(r, "new_count", t, &stats->new_count, false, 1.0);
+ add_counter(r, "bulk_new_count", t, &stats->bulk_new_count, false, 1.0);
+ add_counter(r, "delete_count", t, &stats->delete_count, false, 1.0);
+ add_counter(r, "clear_count", t, &stats->clear_count, false, 1.0);
+ add_counter(r, "add_count", t, &stats->add_count, false, 1.0);
+ add_counter(r, "remove_count", t, &stats->remove_count, false, 1.0);
+ add_counter(r, "set_count", t, &stats->set_count, false, 1.0);
+ add_counter(r, "discard_count", t, &stats->discard_count, false, 1.0);
+ ecs_strbuf_list_pop(r, "}");
+
+ ecs_strbuf_list_pop(r, "}");
+}
+
+static void add_signature(
+ ecs_world_t *world,
+ ecs_strbuf_t *r,
+ ecs_entity_t system)
+{
+ const EcsQuery *q = ecs_get(world, system, EcsQuery);
+ if (q) {
+ ecs_strbuf_list_append(r, "\"signature\":");
+ ecs_strbuf_list_push(r, "[", ",");
+
+ const ecs_filter_t *filter = ecs_query_get_filter(q->query);
+ ecs_term_t *terms = filter->terms;
+ int32_t i, count = filter->term_count;
+
+ for (i = 0; i < count; i ++) {
+ ecs_term_t *term = &terms[i];
+
+ if (term->oper != EcsOr) {
+ ecs_entity_t id = term->id;
+
+ ecs_strbuf_list_next(r);
+ ecs_strbuf_list_push(r, "{", ",");
+
+ char buf[2555];
+ ecs_id_str(world, id, buf, 255);
+ ecs_strbuf_list_append(r, "\"name\":\"%s\"", buf);
+
+ ecs_entity_t actual = ecs_get_typeid(world, id);
+ if (!ecs_has(world, actual, EcsComponent)) {
+ ecs_strbuf_list_append(r, "\"tag\":true");
+ }
+
+ if (term->inout == EcsIn) {
+ ecs_strbuf_list_append(r, "\"const\":true");
+ }
+
+ if (term->oper == EcsNot) {
+ ecs_strbuf_list_append(r, "\"exclude\":true");
+ }
+
+ if (term->args[0].set.mask == EcsNothing) {
+ ecs_strbuf_list_append(r, "\"empty\":true");
+ } else {
+ if (term->args[0].entity != EcsThis) {
+ ecs_strbuf_list_append(r, "\"ref\":true");
+ }
+
+ if (term->args[0].entity == term->id) {
+ ecs_strbuf_list_append(r, "\"singleton\":true");
+ }
+ }
+
+ ecs_strbuf_list_pop(r, "}");
+ }
+ }
+
+ ecs_strbuf_list_pop(r, "]");
+ }
+}
+
+static void add_system(
+ ecs_world_t *world,
+ ecs_strbuf_t *r,
+ const ecs_pipeline_stats_t *stats,
+ ecs_entity_t system,
+ float df)
+{
+ ecs_system_stats_t *s = ecs_map_get(
+ stats->system_stats, ecs_system_stats_t, system);
+
+ ecs_strbuf_list_next(r);
+ ecs_strbuf_list_push(r, "{", ",");
+ ecs_strbuf_list_append(r, "\"name\":\"%s\"", ecs_get_name(world, system));
+
+ ecs_entity_t module = ecs_get_parent_w_entity(world, system, EcsModule);
+ if (module) {
+ char *module_name = ecs_get_fullpath(world, module);
+ ecs_strbuf_list_append(r, "\"module\":\"%s\"", module_name);
+ ecs_os_free(module_name);
+ }
+
+ add_signature(world, r, system);
+
+ if (s) {
+ int32_t t = s->query_stats.t;
+ ecs_strbuf_list_appendstr(r, "\"current\":");
+ ecs_strbuf_list_push(r, "{", ",");
+ add_current(r, "matched_table_count", t, &s->query_stats.matched_table_count, 1.0);
+ add_current(r, "matched_empty_table_count", t, &s->query_stats.matched_empty_table_count, 1.0);
+ add_current(r, "matched_entity_count", t, &s->query_stats.matched_entity_count, 1.0);
+ add_current(r, "time_spent", t, &s->time_spent, df);
+ add_current(r, "invoke_count", t, &s->invoke_count, df);
+ add_current(r, "active", t, &s->active, 1.0);
+ add_current(r, "enabled", t, &s->enabled, 1.0);
+ ecs_strbuf_list_pop(r, "}");
+
+ ecs_strbuf_list_appendstr(r, "\"history_1m\":");
+ ecs_strbuf_list_push(r, "{", ",");
+ add_gauge(r, "matched_table_count", t, &s->query_stats.matched_table_count, false, 1.0);
+ add_gauge(r, "matched_empty_table_count", t, &s->query_stats.matched_empty_table_count, false, 1.0);
+ add_gauge(r, "matched_entity_count", t, &s->query_stats.matched_entity_count, false, 1.0);
+ add_counter(r, "time_spent", t, &s->time_spent, false, 1.0);
+ add_counter(r, "invoke_count", t, &s->invoke_count, false, 1.0);
+ add_gauge(r, "active", t, &s->active, false, 1.0);
+ add_gauge(r, "enabled", t, &s->enabled, false, 1.0);
+ ecs_strbuf_list_pop(r, "}");
+ }
+
+ ecs_strbuf_list_pop(r, "}");
+}
+
+static void add_pipeline_stats(
+ ecs_world_t *world,
+ ecs_strbuf_t *r)
+{
+ /* Get number of frames passed in interval */
+ const WorldStats *ws = ecs_get(world, ecs_typeid(WorldStats), WorldStats);
+ if (!ws) {
+ return;
+ }
+
+ const ecs_world_stats_t *wstats = &ws->stats;
+ int32_t t = wstats->t;
+ float df = wstats->frame_count_total.rate.avg[t];
+ if (df == 0.0f) {
+ return;
+ }
+
+ const PipelineStats *s = ecs_get(world,
+ ecs_typeid(PipelineStats), PipelineStats);
+ if (!s) {
+ return;
+ }
+
+ const ecs_pipeline_stats_t *stats = &s->stats;
+ int32_t i, count = ecs_vector_count(stats->systems);
+ ecs_entity_t *systems = ecs_vector_first(stats->systems, ecs_entity_t);
+
+ ecs_strbuf_list_appendstr(r, "\"pipeline\":");
+ ecs_strbuf_list_push(r, "{", ",");
+
+ add_current(r, "fps", t, &wstats->fps, 1.0);
+ add_current(r, "frame_time_total", t, &wstats->frame_time_total, df);
+ add_current(r, "system_time_total", t, &wstats->system_time_total, df);
+ add_current(r, "merge_time_total", t, &wstats->merge_time_total, df);
+
+ ecs_strbuf_list_appendstr(r, "\"systems\":");
+ ecs_strbuf_list_push(r, "[", ",");
+ for (i = 0; i < count; i ++) {
+ if (systems[i]) {
+ add_system(world, r, stats, systems[i], df);
+ } else {
+ /* Merge */
+ ecs_strbuf_list_appendstr(r, "null");
+ }
+ }
+ ecs_strbuf_list_pop(r, "]");
+
+ ecs_strbuf_list_pop(r, "}");
+}
+
+static
+bool endpoint_world(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ EcsHttpEndpoint *endpoint,
+ EcsHttpRequest *request,
+ EcsHttpReply *reply)
+{
+ (void)entity;
+ (void)endpoint;
+
+ ecs_strbuf_t r = ECS_STRBUF_INIT;
+
+ const ecs_world_info_t *info = ecs_get_world_info(world);
+
+ ecs_strbuf_list_push(&r, "{", ",");
+
+ ecs_strbuf_list_append(&r, "\"target_fps\":%f", (double)info->target_fps);
+
+ char param[256];
+ if (ecs_http_get_query_param(
+ request->params, "world", param, sizeof(param)) &&
+ !strcmp(param, "yes"))
+ {
+ add_world_stats(world, &r);
+ }
+
+ if (ecs_http_get_query_param(
+ request->params, "pipeline", param, sizeof(param)) &&
+ !strcmp(param, "yes"))
+ {
+ add_pipeline_stats(world, &r);
+ }
+
+ ecs_strbuf_list_pop(&r, "}");
+
+ reply->body = ecs_strbuf_get(&r);
+
+ return true;
+}
+
+static void CollectWorldStats(ecs_iter_t *it) {
+ WorldStats *s = ecs_column(it, WorldStats, 1);
+ ecs_get_world_stats(it->world, &s->stats);
+}
+
+static void CollectPipelineStats(ecs_iter_t *it) {
+ PipelineStats *s = ecs_column(it, PipelineStats, 1);
+ ecs_get_pipeline_stats(it->world, ecs_get_pipeline(it->world), &s->stats);
+}
+
+static void RecordDeltaTime(ecs_iter_t *it) {
+ DeltaTime *s = ecs_column(it, DeltaTime, 1);
+ int32_t t_frame = s->t_frame;
+ s->frame.min[t_frame] = it->delta_time;
+ s->frame.avg[t_frame] = it->delta_time;
+ s->frame.max[t_frame] = it->delta_time;
+ s->t_frame = (t_frame + 1) % ECS_STAT_WINDOW;
+}
+
+static void CollectDeltaTime(ecs_iter_t *it) {
+ DeltaTime *s = ecs_column(it, DeltaTime, 1);
+ ecs_gauge_reduce(&s->minute, s->t_minute, &s->frame, s->t_frame);
+ s->t_minute = (s->t_minute + 1) % ECS_STAT_WINDOW;
+}
+
+static void RunServer(ecs_iter_t *it) {
+ ecs_world_t *world = it->world;
+ EcsMonitorServer *server = ecs_column(it, EcsMonitorServer, 1);
+ ecs_entity_t ecs_typeid(EcsHttpServer) = ecs_column_entity(it, 2);
+ ecs_entity_t ecs_typeid(EcsHttpEndpoint) = ecs_column_entity(it, 3);
+
+ int32_t i;
+ for (i = 0; i < it->count; i ++) {
+ ecs_entity_t e = it->entities[i];
+
+ ecs_set(world, e, EcsHttpServer, {.port = server[i].port});
+
+ /* Add endpoint to server that returns entity id of server */
+ ecs_entity_t e_metrics = ecs_new_w_entity(world, ECS_CHILDOF | e);
+ ecs_set(world, e_metrics, EcsName, {.value = "e_metrics"});
+ ecs_set(world, e_metrics, EcsHttpEndpoint, {
+ .url = "metrics",
+ .action = endpoint_world,
+ .synchronous = true});
+ }
+}
+
+void FlecsMonitorImport(
+ ecs_world_t *world)
+{
+ ECS_MODULE(world, FlecsMonitor);
+
+ ECS_IMPORT(world, FlecsMeta);
+ ECS_IMPORT(world, FlecsComponentsHttp);
+
+ ecs_set_name_prefix(world, "EcsMonitor");
+
+ ECS_META(world, EcsMonitorServer);
+
+ /* Private components */
+ ECS_COMPONENT_DEFINE(world, WorldStats);
+ ECS_COMPONENT_DEFINE(world, DeltaTime);
+ ECS_COMPONENT_DEFINE(world, PipelineStats);
+
+ ECS_SYSTEM(world, RunServer, EcsOnSet, Server,
+ :flecs.components.http.Server,
+ :flecs.components.http.Endpoint);
+
+ ECS_SYSTEM(world, CollectWorldStats, EcsOnLoad, $WorldStats);
+ ECS_SYSTEM(world, CollectPipelineStats, EcsOnLoad, $PipelineStats);
+ ECS_SYSTEM(world, RecordDeltaTime, EcsOnLoad, $DeltaTime);
+ ECS_SYSTEM(world, CollectDeltaTime, EcsOnLoad, $DeltaTime);
+
+ /* Collect statistics once per second */
+ ecs_set_interval(world, CollectWorldStats, 1.0);
+ ecs_set_interval(world, CollectPipelineStats, 1.0);
+ ecs_set_interval(world, CollectDeltaTime, 1.0);
+
+ /* Initialize singleton entities for statistics components */
+ ecs_set_ptr(world, ecs_typeid(WorldStats), WorldStats, NULL);
+ ecs_set_ptr(world, ecs_typeid(PipelineStats), PipelineStats, NULL);
+ ecs_set_ptr(world, ecs_typeid(DeltaTime), DeltaTime, NULL);
+
+ ECS_EXPORT_COMPONENT(EcsMonitorServer);
+
+ /* Enable system time monitoring */
+ ecs_measure_system_time(world, true);
+}
diff --git a/vendor/flecs/modules/src/flecs_player.c b/vendor/flecs/modules/src/flecs_player.c
new file mode 100644
index 0000000000000000000000000000000000000000..6983f919dc6de3672422ab4b388e63e285fa23c6
--- /dev/null
+++ b/vendor/flecs/modules/src/flecs_player.c
@@ -0,0 +1,126 @@
+#ifndef FLECS_PLAYER_IMPL
+#include "flecs_player.h"
+#endif
+
+static
+void player_start(
+ ecs_world_t *world,
+ void *ctx)
+{
+ ecs_ref_t *ref = ctx;
+ EcsPlayer *player = (EcsPlayer*)ecs_get_ref_w_entity(world, ref, 0, 0);
+ ecs_assert(player != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ player->snapshot = ecs_snapshot_take(world);
+ player->time_scale = 1.0;
+
+ ecs_set_time_scale(world, 1.0);
+ ecs_set_pipeline(world, player->play_pipeline);
+
+ ecs_os_free(ref);
+}
+
+static
+void player_stop(
+ ecs_world_t *world,
+ void *ctx)
+{
+ ecs_ref_t *ref = ctx;
+ EcsPlayer *player = (EcsPlayer*)ecs_get_ref_w_entity(world, ref, 0, 0);
+ ecs_assert(player != NULL, ECS_INTERNAL_ERROR, NULL);
+
+ if (player->snapshot) {
+ ecs_snapshot_restore(world, player->snapshot);
+
+ player = (EcsPlayer*)ecs_get_ref_w_entity(world, ref, 0, 0);
+ ecs_set_time_scale(world, 0);
+ ecs_reset_clock(world);
+ player->time_scale = 0;
+ player->state = EcsPlayerStop;
+ player->prev_state = EcsPlayerStop;
+ }
+
+ player->snapshot = NULL;
+ ecs_set_pipeline(world, player->stop_pipeline);
+
+ ecs_os_free(ref);
+}
+
+static
+void EcsSetPlayer(ecs_iter_t *it) {
+ ecs_world_t *world = it->world;
+
+ EcsPlayer *player = ecs_column(it, EcsPlayer, 1);
+ ecs_entity_t ecs_typeid(EcsPlayer) = ecs_column_entity(it, 1);
+
+ int32_t i;
+ for (i = 0; i < it->count; i ++) {
+ EcsPlayerState prev_state = player[i].prev_state;
+ EcsPlayerState state = player[i].state;
+
+ if (prev_state != state) {
+ switch(player[i].state) {
+ case EcsPlayerPause:
+ player[i].time_scale = 0;
+ break;
+ case EcsPlayerPlay:
+ if (prev_state == EcsPlayerStop) {
+ ecs_ref_t *ref = ecs_os_calloc(sizeof(ecs_ref_t));
+ ecs_get_ref(world, ref, it->entities[i], EcsPlayer);
+ ecs_run_post_frame(it->world, player_start, ref);
+ } else {
+ player[i].time_scale = 1.0;
+ }
+ break;
+ case EcsPlayerStop:
+ if (prev_state != EcsPlayerStop) {
+ ecs_ref_t *ref = ecs_os_calloc(sizeof(ecs_ref_t));
+ ecs_get_ref(world, ref, it->entities[i], EcsPlayer);
+ ecs_run_post_frame(world, player_stop, ref);
+ }
+ player[i].time_scale = 0;
+ break;
+ default:
+ break;
+ }
+ }
+
+ player[i].prev_state = state;
+
+ ecs_set_time_scale(it->world, player[i].time_scale);
+ }
+}
+
+void FlecsPlayerImport(
+ ecs_world_t *world)
+{
+ ECS_MODULE(world, FlecsPlayer);
+
+ ECS_IMPORT(world, FlecsMeta);
+
+ ecs_set_name_prefix(world, "Ecs");
+
+ ECS_META(world, EcsPlayerState);
+ ECS_META(world, EcsPlayer);
+ ECS_META(world, EcsTargetFps);
+
+ ECS_PIPELINE(world, StopPipeline,
+ flecs.pipeline.PreFrame,
+ flecs.pipeline.OnLoad,
+ flecs.pipeline.PostLoad,
+ flecs.pipeline.PreStore,
+ flecs.pipeline.OnStore,
+ flecs.pipeline.PostFrame);
+
+ ECS_SYSTEM(world, EcsSetPlayer, EcsOnSet, EcsPlayer);
+
+ ecs_set(world, EcsWorld, EcsPlayer, {
+ .state = EcsPlayerPlay,
+ .prev_state = EcsPlayerStop,
+ .time_scale = 1,
+ .play_pipeline = ecs_get_pipeline(world),
+ .stop_pipeline = StopPipeline
+ });
+
+ ECS_EXPORT_COMPONENT(EcsPlayer);
+}
diff --git a/vendor/flecs/modules/src/flecs_rest.c b/vendor/flecs/modules/src/flecs_rest.c
new file mode 100644
index 0000000000000000000000000000000000000000..a698948687daf8d66f81e2fb7d079c0870f1b7f3
--- /dev/null
+++ b/vendor/flecs/modules/src/flecs_rest.c
@@ -0,0 +1,417 @@
+#ifndef FLECS_REST_IMPL
+#include "flecs_rest.h"
+#endif
+#include <stdio.h>
+#include <ctype.h>
+
+static
+bool parse_filter(
+ ecs_world_t *world,
+ EcsHttpRequest *request,
+ ecs_filter_t *filter)
+{
+ char buffer[1024];
+
+ filter->include = NULL;
+ filter->exclude = NULL;
+
+ if (ecs_http_get_query_param(
+ request->params, "include", buffer, sizeof(buffer)))
+ {
+ filter->include = ecs_type_from_str(world, buffer);
+ filter->include_kind = EcsMatchAny;
+ if (!filter->include) {
+ return false;
+ }
+ }
+
+ if (ecs_http_get_query_param(
+ request->params, "exclude", buffer, sizeof(buffer)))
+ {
+ filter->exclude = ecs_type_from_str(world, buffer);
+ if (!filter->exclude) {
+ return false;
+ }
+ }
+
+ return true;
+}
+
+static
+bool parse_select(
+ ecs_world_t *world,
+ EcsHttpRequest *request,
+ ecs_type_t *select)
+{
+ char buffer[1024];
+
+ *select = NULL;
+
+ if (ecs_http_get_query_param(
+ request->params, "select", buffer, sizeof(buffer)))
+ {
+ *select = ecs_type_from_str(world, buffer);
+ if (!*select) {
+ return false;
+ }
+ }
+
+ return true;
+}
+
+static
+bool parse_entity(
+ ecs_world_t *world,
+ EcsHttpRequest *request,
+ ecs_entity_t *e_out)
+{
+ ecs_entity_t e = 0;
+
+ if (request->relative_url && strlen(request->relative_url)) {
+ /* Request scope of entity */
+ const char *name = request->relative_url;
+
+ /* If name starts with a number, lookup by entity id */
+ if (isdigit(name[0])) {
+ e = atoi(name);
+ } else {
+ e = ecs_lookup_path_w_sep(world, 0, name, "/", NULL, true);
+ if (!e) {
+ return false;
+ }
+ }
+ }
+
+ *e_out = e;
+
+ return true;
+}
+
+static
+bool endpoint_filter(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ EcsHttpEndpoint *endpoint,
+ EcsHttpRequest *request,
+ EcsHttpReply *reply)
+{
+ ecs_filter_t filter;
+ ecs_type_t select = NULL;
+
+ if (!parse_filter(world, request, &filter)) {
+ return false;
+ }
+
+ if (!parse_select(world, request, &select)) {
+ return false;
+ }
+
+ ecs_iter_t it = ecs_filter_iter(world, &filter);
+
+ reply->body = ecs_iter_to_json(world, &it, ecs_filter_next, select);
+
+ return true;
+}
+
+static
+bool endpoint_scope(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ EcsHttpEndpoint *endpoint,
+ EcsHttpRequest *request,
+ EcsHttpReply *reply)
+{
+ ecs_entity_t e = 0;
+ ecs_filter_t filter;
+ ecs_type_t select = NULL;
+
+ if (!parse_entity(world, request, &e)) {
+ return false;
+ }
+
+ if (!parse_filter(world, request, &filter)) {
+ return false;
+ }
+
+ if (!parse_select(world, request, &select)) {
+ return false;
+ }
+
+ ecs_iter_t it = ecs_scope_iter_w_filter(world, e, &filter);
+
+ reply->body = ecs_iter_to_json(world, &it, ecs_scope_next, select);
+
+ return true;
+}
+
+static
+bool endpoint_entity_new(
+ ecs_world_t *world,
+ EcsHttpReply *reply,
+ const char *name,
+ ecs_type_t select)
+{
+ ecs_entity_t e = ecs_new_from_path(world, 0, name);
+ if (select) {
+ ecs_add_type(world, e, select);
+ }
+
+ return true;
+}
+
+static
+bool endpoint_entity_add(
+ ecs_world_t *world,
+ EcsHttpReply *reply,
+ ecs_entity_t e,
+ ecs_type_t select)
+{
+ if (select) {
+ ecs_add_type(world, e, select);
+ }
+
+ return true;
+}
+
+static
+bool endpoint_entity_remove(
+ ecs_world_t *world,
+ EcsHttpReply *reply,
+ ecs_entity_t e,
+ ecs_type_t select)
+{
+ if (select) {
+ ecs_remove_type(world, e, select);
+ } else {
+ ecs_delete(world, e);
+ }
+
+ return true;
+}
+
+static
+bool endpoint_entity_get(
+ ecs_world_t *world,
+ EcsHttpReply *reply,
+ ecs_entity_t e,
+ ecs_type_t select)
+{
+ reply->body = ecs_entity_to_json(world, e, select);
+ return true;
+}
+
+static
+bool endpoint_entity(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ EcsHttpEndpoint *endpoint,
+ EcsHttpRequest *request,
+ EcsHttpReply *reply)
+{
+ ecs_entity_t e = 0;
+ ecs_type_t select = NULL;
+
+ if (!parse_select(world, request, &select)) {
+ return false;
+ }
+
+ if (request->method == EcsHttpPost) {
+ return endpoint_entity_new(world, reply, request->relative_url, select);
+ }
+
+ if (!parse_entity(world, request, &e)) {
+ return false;
+ }
+
+ if (request->method == EcsHttpGet) {
+ return endpoint_entity_get(world, reply, e, select);
+ } else if (request->method == EcsHttpDelete) {
+ return endpoint_entity_remove(world, reply, e, select);
+ } else if (request->method == EcsHttpPut) {
+ return endpoint_entity_add(world, reply, e, select);
+ }
+
+ return false;
+}
+
+static
+void serialize_browse_info(
+ ecs_world_t *world,
+ ecs_entity_t parent,
+ ecs_entity_t e,
+ ecs_strbuf_t *str)
+{
+ ecs_strbuf_list_append(str, "\"id\":%u", (int32_t)e);
+
+ char *type = ecs_type_to_json(world, ecs_get_type(world, e));
+ ecs_strbuf_list_append(str, "\"type\":%s", type);
+
+ const char *name = ecs_get_name(world, e);
+ if (name) {
+ ecs_strbuf_list_append(str, "\"name\":\"%s\"", name);
+
+ char *fullpath = ecs_get_fullpath(world, e);
+ ecs_strbuf_list_append(str, "\"path\":\"%s\"", fullpath);
+ }
+
+ int32_t child_count = ecs_get_child_count(world, e);
+ ecs_strbuf_list_append(str, "\"child_count\":%u", child_count);
+}
+
+static
+bool endpoint_browse(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ EcsHttpEndpoint *endpoint,
+ EcsHttpRequest *request,
+ EcsHttpReply *reply)
+{
+ ecs_filter_t filter;
+ ecs_entity_t e;
+
+ if (!parse_entity(world, request, &e)) {
+ return false;
+ }
+
+ if (!parse_filter(world, request, &filter)) {
+ return false;
+ }
+
+ ecs_iter_t it = ecs_scope_iter_w_filter(world, e, &filter);
+ ecs_strbuf_t str = ECS_STRBUF_INIT;
+
+ ecs_strbuf_list_push(&str, "[", ",");
+ while (ecs_scope_next(&it)) {
+ int32_t i;
+ for (i = 0; i < it.count; i ++) {
+ ecs_strbuf_list_next(&str);
+ ecs_strbuf_list_push(&str, "{", ",");
+ serialize_browse_info(world, e, it.entities[i], &str);
+ ecs_strbuf_list_pop(&str, "}");
+ }
+ }
+ ecs_strbuf_list_pop(&str, "]");
+
+ reply->body = ecs_strbuf_get(&str);
+
+ return true;
+}
+
+static
+bool endpoint_info(
+ ecs_world_t *world,
+ ecs_entity_t entity,
+ EcsHttpEndpoint *endpoint,
+ EcsHttpRequest *request,
+ EcsHttpReply *reply)
+{
+ ecs_entity_t e;
+
+ if (!parse_entity(world, request, &e)) {
+ return false;
+ }
+
+ ecs_strbuf_t str = ECS_STRBUF_INIT;
+ ecs_strbuf_list_push(&str, "{", ",");
+ serialize_browse_info(world, e, e, &str);
+ ecs_strbuf_list_pop(&str, "}");
+
+ reply->body = ecs_strbuf_get(&str);
+
+ return true;
+}
+
+static
+void EcsRestSetServer(ecs_iter_t *it) {
+ EcsRestServer *server_data = ecs_column(it, EcsRestServer, 1);
+ ecs_entity_t ecs_typeid(EcsHttpServer) = ecs_column_entity(it, 2);
+ ecs_entity_t ecs_typeid(EcsHttpEndpoint) = ecs_column_entity(it, 3);
+ ecs_entity_t EcsRestInitialized = ecs_column_entity(it, 4);
+
+ ecs_world_t *world = it->world;
+
+ int i;
+ for (i = 0; i < it->count; i ++) {
+ ecs_entity_t server = it->entities[i];
+
+ // Get filtered list of entities
+ ecs_set(world, server, EcsHttpServer, {.port = server_data[i].port});
+
+ if (ecs_has_entity(world, server, EcsRestInitialized)) {
+ /* Don't add endpoints more than once */
+ continue;
+ }
+
+ ecs_entity_t e_filter = ecs_new_w_entity(world, ECS_CHILDOF | server);
+ ecs_set(world, e_filter, EcsName, {"e_filter"});
+ ecs_set(world, e_filter, EcsHttpEndpoint, {
+ .url = "filter",
+ .action = endpoint_filter,
+ .synchronous = true,
+ .ctx = NULL
+ });
+
+ // Get filtered list of children
+ ecs_entity_t e_scope = ecs_new_w_entity(world, ECS_CHILDOF | server);
+ ecs_set(world, e_scope, EcsName, {"e_scope"});
+ ecs_set(world, e_scope, EcsHttpEndpoint, {
+ .url = "scope",
+ .action = endpoint_scope,
+ .synchronous = true,
+ .ctx = NULL
+ });
+
+ // Get component data for single entity
+ ecs_entity_t e_entity = ecs_new_w_entity(world, ECS_CHILDOF | server);
+ ecs_set(world, e_entity, EcsName, {"e_entity"});
+ ecs_set(world, e_entity, EcsHttpEndpoint, {
+ .url = "entity",
+ .action = endpoint_entity,
+ .synchronous = true,
+ .ctx = NULL
+ });
+
+ // Browse entity information
+ ecs_entity_t e_browse = ecs_new_w_entity(world, ECS_CHILDOF | server);
+ ecs_set(world, e_browse, EcsName, {"e_browse"});
+ ecs_set(world, e_browse, EcsHttpEndpoint, {
+ .url = "browse",
+ .action = endpoint_browse,
+ .synchronous = true,
+ .ctx = NULL
+ });
+
+ // Browse entity information for single entity
+ ecs_entity_t e_info = ecs_new_w_entity(world, ECS_CHILDOF | server);
+ ecs_set(world, e_info, EcsName, {"e_info"});
+ ecs_set(world, e_info, EcsHttpEndpoint, {
+ .url = "info",
+ .action = endpoint_info,
+ .synchronous = true,
+ .ctx = NULL
+ });
+
+ ecs_add_entity(world, server, EcsRestInitialized);
+ }
+}
+
+void FlecsRestImport(
+ ecs_world_t *world)
+{
+ ECS_MODULE(world, FlecsRest);
+
+ ecs_set_name_prefix(world, "EcsRest");
+
+ ECS_IMPORT(world, FlecsMeta);
+ ECS_IMPORT(world, FlecsComponentsHttp);
+
+ ECS_META(world, EcsRestServer);
+ ECS_TAG(world, EcsRestInitialized);
+
+ ECS_SYSTEM(world, EcsRestSetServer, EcsOnSet, Server,
+ :flecs.components.http.Server,
+ :flecs.components.http.Endpoint,
+ :Initialized);
+
+ ECS_EXPORT_COMPONENT(EcsRestServer);
+}
diff --git a/vendor/flecs/modules/src/flecs_systems_civetweb.c b/vendor/flecs/modules/src/flecs_systems_civetweb.c
new file mode 100644
index 0000000000000000000000000000000000000000..1fbc3ac6bcd28286ed634825ab204a68e42da0da
--- /dev/null
+++ b/vendor/flecs/modules/src/flecs_systems_civetweb.c
@@ -0,0 +1,23477 @@
+#ifndef FLECS_SYSTEMS_CIVETWEB_IMPL
+#include "flecs_systems_civetweb.h"
+#endif
+#include <string.h>
+/* Copyright (c) 2013-2018 the Civetweb developers
+ * Copyright (c) 2004-2013 Sergey Lyubka
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef CIVETWEB_HEADER_INCLUDED
+#define CIVETWEB_HEADER_INCLUDED
+
+#define CIVETWEB_VERSION "1.12"
+#define CIVETWEB_VERSION_MAJOR (1)
+#define CIVETWEB_VERSION_MINOR (12)
+#define CIVETWEB_VERSION_PATCH (0)
+
+#ifndef CIVETWEB_API
+#if defined(_WIN32)
+#if defined(CIVETWEB_DLL_EXPORTS)
+#define CIVETWEB_API __declspec(dllexport)
+#elif defined(CIVETWEB_DLL_IMPORTS)
+#define CIVETWEB_API __declspec(dllimport)
+#else
+#define CIVETWEB_API
+#endif
+#elif __GNUC__ >= 4
+#define CIVETWEB_API __attribute__((visibility("default")))
+#else
+#define CIVETWEB_API
+#endif
+#endif
+
+#include <stddef.h>
+#include <stdio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+/* Init Features */
+enum {
+ MG_FEATURES_DEFAULT = 0x0u,
+
+ /* Support files from local directories */
+ /* Will only work, if NO_FILES is not set. */
+ MG_FEATURES_FILES = 0x1u,
+
+ /* Support transport layer security (TLS). */
+ /* SSL is still often used synonymously for TLS. */
+ /* Will only work, if NO_SSL is not set. */
+ MG_FEATURES_TLS = 0x2u,
+ MG_FEATURES_SSL = 0x2u,
+
+ /* Support common gateway interface (CGI). */
+ /* Will only work, if NO_CGI is not set. */
+ MG_FEATURES_CGI = 0x4u,
+
+ /* Support IPv6. */
+ /* Will only work, if USE_IPV6 is set. */
+ MG_FEATURES_IPV6 = 0x8u,
+
+ /* Support WebSocket protocol. */
+ /* Will only work, if USE_WEBSOCKET is set. */
+ MG_FEATURES_WEBSOCKET = 0x10u,
+
+ /* Support server side Lua scripting. */
+ /* Will only work, if USE_LUA is set. */
+ MG_FEATURES_LUA = 0x20u,
+
+ /* Support server side JavaScript scripting. */
+ /* Will only work, if USE_DUKTAPE is set. */
+ MG_FEATURES_SSJS = 0x40u,
+
+ /* Provide data required for caching files. */
+ /* Will only work, if NO_CACHING is not set. */
+ MG_FEATURES_CACHE = 0x80u,
+
+ /* Collect server status information. */
+ /* Will only work, if USE_SERVER_STATS is set. */
+ MG_FEATURES_STATS = 0x100u,
+
+ /* Support on-the-fly compression. */
+ /* Will only work, if USE_ZLIB is set. */
+ MG_FEATURES_COMPRESSION = 0x200u,
+
+ /* Collect server status information. */
+ /* Will only work, if USE_SERVER_STATS is set. */
+ MG_FEATURES_ALL = 0xFFFFu
+};
+
+
+/* Initialize this library. This should be called once before any other
+ * function from this library. This function is not guaranteed to be
+ * thread safe.
+ * Parameters:
+ * features: bit mask for features to be initialized.
+ * Note: The TLS libraries (like OpenSSL) is initialized
+ * only if the MG_FEATURES_TLS bit is set.
+ * Currently the other bits do not influence
+ * initialization, but this may change in future
+ * versions.
+ * Return value:
+ * initialized features
+ * 0: error
+ */
+CIVETWEB_API unsigned mg_init_library(unsigned features);
+
+
+/* Un-initialize this library.
+ * Return value:
+ * 0: error
+ */
+CIVETWEB_API unsigned mg_exit_library(void);
+
+
+struct mg_context; /* Handle for the HTTP service itself */
+struct mg_connection; /* Handle for the individual connection */
+
+
+/* Maximum number of headers */
+#define MG_MAX_HEADERS (64)
+
+struct mg_header {
+ const char *name; /* HTTP header name */
+ const char *value; /* HTTP header value */
+};
+
+
+/* This structure contains information about the HTTP request. */
+struct mg_request_info {
+ const char *request_method; /* "GET", "POST", etc */
+ const char *request_uri; /* URL-decoded URI (absolute or relative,
+ * as in the request) */
+ const char *local_uri; /* URL-decoded URI (relative). Can be NULL
+ * if the request_uri does not address a
+ * resource at the server host. */
+#if defined(MG_LEGACY_INTERFACE) /* 2017-02-04, deprecated 2014-09-14 */
+ const char *uri; /* Deprecated: use local_uri instead */
+#endif
+ const char *http_version; /* E.g. "1.0", "1.1" */
+ const char *query_string; /* URL part after '?', not including '?', or
+ NULL */
+ const char *remote_user; /* Authenticated user, or NULL if no auth
+ used */
+ char remote_addr[48]; /* Client's IP address as a string. */
+
+ long long content_length; /* Length (in bytes) of the request body,
+ can be -1 if no length was given. */
+ int remote_port; /* Client's port */
+ int is_ssl; /* 1 if SSL-ed, 0 if not */
+ void *user_data; /* User data pointer passed to mg_start() */
+ void *conn_data; /* Connection-specific user data */
+
+ int num_headers; /* Number of HTTP headers */
+ struct mg_header
+ http_headers[MG_MAX_HEADERS]; /* Allocate maximum headers */
+
+ struct mg_client_cert *client_cert; /* Client certificate information */
+
+ const char *acceptedWebSocketSubprotocol; /* websocket subprotocol,
+ * accepted during handshake */
+};
+
+
+/* This structure contains information about the HTTP request. */
+/* This structure may be extended in future versions. */
+struct mg_response_info {
+ int status_code; /* E.g. 200 */
+ const char *status_text; /* E.g. "OK" */
+ const char *http_version; /* E.g. "1.0", "1.1" */
+
+ long long content_length; /* Length (in bytes) of the request body,
+ can be -1 if no length was given. */
+
+ int num_headers; /* Number of HTTP headers */
+ struct mg_header
+ http_headers[MG_MAX_HEADERS]; /* Allocate maximum headers */
+};
+
+
+/* Client certificate information (part of mg_request_info) */
+/* New nomenclature. */
+struct mg_client_cert {
+ void *peer_cert;
+ const char *subject;
+ const char *issuer;
+ const char *serial;
+ const char *finger;
+};
+
+#if defined(MG_LEGACY_INTERFACE) /* 2017-10-05 */
+/* Old nomenclature. */
+struct client_cert {
+ const char *subject;
+ const char *issuer;
+ const char *serial;
+ const char *finger;
+};
+#endif
+
+
+/* This structure needs to be passed to mg_start(), to let civetweb know
+ which callbacks to invoke. For a detailed description, see
+ https://github.com/civetweb/civetweb/blob/master/docs/UserManual.md */
+struct mg_callbacks {
+ /* Called when civetweb has received new HTTP request.
+ If the callback returns one, it must process the request
+ by sending valid HTTP headers and a body. Civetweb will not do
+ any further processing. Otherwise it must return zero.
+ Note that since V1.7 the "begin_request" function is called
+ before an authorization check. If an authorization check is
+ required, use a request_handler instead.
+ Return value:
+ 0: civetweb will process the request itself. In this case,
+ the callback must not send any data to the client.
+ 1-999: callback already processed the request. Civetweb will
+ not send any data after the callback returned. The
+ return code is stored as a HTTP status code for the
+ access log. */
+ int (*begin_request)(struct mg_connection *);
+
+ /* Called when civetweb has finished processing request. */
+ void (*end_request)(const struct mg_connection *, int reply_status_code);
+
+ /* Called when civetweb is about to log a message. If callback returns
+ non-zero, civetweb does not log anything. */
+ int (*log_message)(const struct mg_connection *, const char *message);
+
+ /* Called when civetweb is about to log access. If callback returns
+ non-zero, civetweb does not log anything. */
+ int (*log_access)(const struct mg_connection *, const char *message);
+
+ /* Called when civetweb initializes SSL library.
+ Parameters:
+ user_data: parameter user_data passed when starting the server.
+ Return value:
+ 0: civetweb will set up the SSL certificate.
+ 1: civetweb assumes the callback already set up the certificate.
+ -1: initializing ssl fails. */
+ int (*init_ssl)(void *ssl_context, void *user_data);
+
+ /* Called when civetweb is about to create or free a SSL_CTX.
+ Parameters:
+ ssl_ctx: SSL_CTX pointer. NULL at creation time, Not NULL when mg_context
+ will be freed
+ user_data: parameter user_data passed when starting the server.
+ Return value:
+ 0: civetweb will continue to create the context, just as if the
+ callback would not be present.
+ The value in *ssl_ctx when the function returns is ignored.
+ 1: civetweb will copy the value from *ssl_ctx to the civetweb context
+ and doesn't create its own.
+ -1: initializing ssl fails.*/
+ int (*external_ssl_ctx)(void **ssl_ctx, void *user_data);
+
+#if defined(MG_LEGACY_INTERFACE) /* 2015-08-19 */
+ /* Called when websocket request is received, before websocket handshake.
+ Return value:
+ 0: civetweb proceeds with websocket handshake.
+ 1: connection is closed immediately.
+ This callback is deprecated: Use mg_set_websocket_handler instead. */
+ int (*websocket_connect)(const struct mg_connection *);
+
+ /* Called when websocket handshake is successfully completed, and
+ connection is ready for data exchange.
+ This callback is deprecated: Use mg_set_websocket_handler instead. */
+ void (*websocket_ready)(struct mg_connection *);
+
+ /* Called when data frame has been received from the client.
+ Parameters:
+ bits: first byte of the websocket frame, see websocket RFC at
+ http://tools.ietf.org/html/rfc6455, section 5.2
+ data, data_len: payload, with mask (if any) already applied.
+ Return value:
+ 1: keep this websocket connection open.
+ 0: close this websocket connection.
+ This callback is deprecated: Use mg_set_websocket_handler instead. */
+ int (*websocket_data)(struct mg_connection *,
+ int bits,
+ char *data,
+ size_t data_len);
+#endif /* MG_LEGACY_INTERFACE */
+
+ /* Called when civetweb is closing a connection. The per-context mutex is
+ locked when this is invoked.
+
+ Websockets:
+ Before mg_set_websocket_handler has been added, it was primarily useful
+ for noting when a websocket is closing, and used to remove it from any
+ application-maintained list of clients.
+ Using this callback for websocket connections is deprecated: Use
+ mg_set_websocket_handler instead.
+
+ Connection specific data:
+ If memory has been allocated for the connection specific user data
+ (mg_request_info->conn_data, mg_get_user_connection_data),
+ this is the last chance to free it.
+ */
+ void (*connection_close)(const struct mg_connection *);
+
+ /* Called when civetweb is about to serve Lua server page, if
+ Lua support is enabled.
+ Parameters:
+ conn: current connection.
+ lua_context: "lua_State *" pointer. */
+ void (*init_lua)(const struct mg_connection *conn, void *lua_context);
+
+#if defined(MG_LEGACY_INTERFACE) /* 2016-05-14 */
+ /* Called when civetweb has uploaded a file to a temporary directory as a
+ result of mg_upload() call.
+ Note that mg_upload is deprecated. Use mg_handle_form_request instead.
+ Parameters:
+ file_name: full path name to the uploaded file. */
+ void (*upload)(struct mg_connection *, const char *file_name);
+#endif
+
+ /* Called when civetweb is about to send HTTP error to the client.
+ Implementing this callback allows to create custom error pages.
+ Parameters:
+ conn: current connection.
+ status: HTTP error status code.
+ errmsg: error message text.
+ Return value:
+ 1: run civetweb error handler.
+ 0: callback already handled the error. */
+ int (*http_error)(struct mg_connection *conn,
+ int status,
+ const char *errmsg);
+
+ /* Called after civetweb context has been created, before requests
+ are processed.
+ Parameters:
+ ctx: context handle */
+ void (*init_context)(const struct mg_context *ctx);
+
+ /* Called when civetweb context is deleted.
+ Parameters:
+ ctx: context handle */
+ void (*exit_context)(const struct mg_context *ctx);
+
+ /* Called when a new worker thread is initialized.
+ * Parameters:
+ * ctx: context handle
+ * thread_type:
+ * 0 indicates the master thread
+ * 1 indicates a worker thread handling client connections
+ * 2 indicates an internal helper thread (timer thread)
+ * Return value:
+ * This function returns a user supplied pointer. The pointer is assigned
+ * to the thread and can be obtained from the mg_connection object using
+ * mg_get_thread_pointer in all server callbacks. Note: A connection and
+ * a thread are not directly related. Threads will serve several different
+ * connections, and data from a single connection may call different
+ * callbacks using different threads. The thread pointer can be obtained
+ * in a callback handler, but should not be stored beyond the scope of
+ * one call to one callback.
+ */
+ void *(*init_thread)(const struct mg_context *ctx, int thread_type);
+
+ /* Called when a worker exits.
+ * The parameters "ctx" and "thread_type" correspond to the "init_thread"
+ * call. The "thread_pointer" parameter is the value returned by
+ * "init_thread".
+ */
+ void (*exit_thread)(const struct mg_context *ctx,
+ int thread_type,
+ void *thread_pointer);
+
+
+ /* Called when initializing a new connection object.
+ * Can be used to initialize the connection specific user data
+ * (mg_request_info->conn_data, mg_get_user_connection_data).
+ * When the callback is called, it is not yet known if a
+ * valid HTTP(S) request will be made.
+ * Parameters:
+ * conn: not yet fully initialized connection object
+ * conn_data: output parameter, set to initialize the
+ * connection specific user data
+ * Return value:
+ * must be 0
+ * Otherwise, the result is undefined
+ */
+ int (*init_connection)(const struct mg_connection *conn, void **conn_data);
+};
+
+
+/* Start web server.
+
+ Parameters:
+ callbacks: mg_callbacks structure with user-defined callbacks.
+ options: NULL terminated list of option_name, option_value pairs that
+ specify Civetweb configuration parameters.
+
+ Side-effects: on UNIX, ignores SIGCHLD and SIGPIPE signals. If custom
+ processing is required for these, signal handlers must be set up
+ after calling mg_start().
+
+
+ Example:
+ const char *options[] = {
+ "document_root", "/var/www",
+ "listening_ports", "80,443s",
+ NULL
+ };
+ struct mg_context *ctx = mg_start(&my_func, NULL, options);
+
+ Refer to https://github.com/civetweb/civetweb/blob/master/docs/UserManual.md
+ for the list of valid option and their possible values.
+
+ Return:
+ web server context, or NULL on error. */
+CIVETWEB_API struct mg_context *mg_start(const struct mg_callbacks *callbacks,
+ void *user_data,
+ const char **configuration_options);
+
+
+/* Stop the web server.
+
+ Must be called last, when an application wants to stop the web server and
+ release all associated resources. This function blocks until all Civetweb
+ threads are stopped. Context pointer becomes invalid. */
+CIVETWEB_API void mg_stop(struct mg_context *);
+
+
+#if defined(MG_EXPERIMENTAL_INTERFACES)
+/* Add an additional domain to an already running web server.
+ *
+ * Parameters:
+ * ctx: Context handle of a server started by mg_start.
+ * options: NULL terminated list of option_name, option_value pairs that
+ * specify CivetWeb configuration parameters.
+ *
+ * Return:
+ * < 0 in case of an error
+ * -1 for a parameter error
+ * -2 invalid options
+ * -3 initializing SSL failed
+ * -4 mandatory domain option missing
+ * -5 duplicate domain
+ * -6 out of memory
+ * > 0 index / handle of a new domain
+ */
+CIVETWEB_API int mg_start_domain(struct mg_context *ctx,
+ const char **configuration_options);
+#endif
+
+
+/* mg_request_handler
+
+ Called when a new request comes in. This callback is URI based
+ and configured with mg_set_request_handler().
+
+ Parameters:
+ conn: current connection information.
+ cbdata: the callback data configured with mg_set_request_handler().
+ Returns:
+ 0: the handler could not handle the request, so fall through.
+ 1 - 999: the handler processed the request. The return code is
+ stored as a HTTP status code for the access log. */
+typedef int (*mg_request_handler)(struct mg_connection *conn, void *cbdata);
+
+
+/* mg_set_request_handler
+
+ Sets or removes a URI mapping for a request handler.
+ This function uses mg_lock_context internally.
+
+ URI's are ordered and prefixed URI's are supported. For example,
+ consider two URIs: /a/b and /a
+ /a matches /a
+ /a/b matches /a/b
+ /a/c matches /a
+
+ Parameters:
+ ctx: server context
+ uri: the URI (exact or pattern) for the handler
+ handler: the callback handler to use when the URI is requested.
+ If NULL, an already registered handler for this URI will
+ be removed.
+ The URI used to remove a handler must match exactly the
+ one used to register it (not only a pattern match).
+ cbdata: the callback data to give to the handler when it is called. */
+CIVETWEB_API void mg_set_request_handler(struct mg_context *ctx,
+ const char *uri,
+ mg_request_handler handler,
+ void *cbdata);
+
+
+/* Callback types for websocket handlers in C/C++.
+
+ mg_websocket_connect_handler
+ Is called when the client intends to establish a websocket connection,
+ before websocket handshake.
+ Return value:
+ 0: civetweb proceeds with websocket handshake.
+ 1: connection is closed immediately.
+
+ mg_websocket_ready_handler
+ Is called when websocket handshake is successfully completed, and
+ connection is ready for data exchange.
+
+ mg_websocket_data_handler
+ Is called when a data frame has been received from the client.
+ Parameters:
+ bits: first byte of the websocket frame, see websocket RFC at
+ http://tools.ietf.org/html/rfc6455, section 5.2
+ data, data_len: payload, with mask (if any) already applied.
+ Return value:
+ 1: keep this websocket connection open.
+ 0: close this websocket connection.
+
+ mg_connection_close_handler
+ Is called, when the connection is closed.*/
+typedef int (*mg_websocket_connect_handler)(const struct mg_connection *,
+ void *);
+typedef void (*mg_websocket_ready_handler)(struct mg_connection *, void *);
+typedef int (*mg_websocket_data_handler)(struct mg_connection *,
+ int,
+ char *,
+ size_t,
+ void *);
+typedef void (*mg_websocket_close_handler)(const struct mg_connection *,
+ void *);
+
+/* struct mg_websocket_subprotocols
+ *
+ * List of accepted subprotocols
+ */
+struct mg_websocket_subprotocols {
+ int nb_subprotocols;
+ char **subprotocols;
+};
+
+/* mg_set_websocket_handler
+
+ Set or remove handler functions for websocket connections.
+ This function works similar to mg_set_request_handler - see there. */
+CIVETWEB_API void
+mg_set_websocket_handler(struct mg_context *ctx,
+ const char *uri,
+ mg_websocket_connect_handler connect_handler,
+ mg_websocket_ready_handler ready_handler,
+ mg_websocket_data_handler data_handler,
+ mg_websocket_close_handler close_handler,
+ void *cbdata);
+
+/* mg_set_websocket_handler
+
+ Set or remove handler functions for websocket connections.
+ This function works similar to mg_set_request_handler - see there. */
+CIVETWEB_API void mg_set_websocket_handler_with_subprotocols(
+ struct mg_context *ctx,
+ const char *uri,
+ struct mg_websocket_subprotocols *subprotocols,
+ mg_websocket_connect_handler connect_handler,
+ mg_websocket_ready_handler ready_handler,
+ mg_websocket_data_handler data_handler,
+ mg_websocket_close_handler close_handler,
+ void *cbdata);
+
+
+/* mg_authorization_handler
+
+ Callback function definition for mg_set_auth_handler
+
+ Parameters:
+ conn: current connection information.
+ cbdata: the callback data configured with mg_set_request_handler().
+ Returns:
+ 0: access denied
+ 1: access granted
+ */
+typedef int (*mg_authorization_handler)(struct mg_connection *conn,
+ void *cbdata);
+
+
+/* mg_set_auth_handler
+
+ Sets or removes a URI mapping for an authorization handler.
+ This function works similar to mg_set_request_handler - see there. */
+CIVETWEB_API void mg_set_auth_handler(struct mg_context *ctx,
+ const char *uri,
+ mg_authorization_handler handler,
+ void *cbdata);
+
+
+/* Get the value of particular configuration parameter.
+ The value returned is read-only. Civetweb does not allow changing
+ configuration at run time.
+ If given parameter name is not valid, NULL is returned. For valid
+ names, return value is guaranteed to be non-NULL. If parameter is not
+ set, zero-length string is returned. */
+CIVETWEB_API const char *mg_get_option(const struct mg_context *ctx,
+ const char *name);
+
+
+/* Get context from connection. */
+CIVETWEB_API struct mg_context *
+mg_get_context(const struct mg_connection *conn);
+
+
+/* Get user data passed to mg_start from context. */
+CIVETWEB_API void *mg_get_user_data(const struct mg_context *ctx);
+
+
+/* Get user defined thread pointer for server threads (see init_thread). */
+CIVETWEB_API void *mg_get_thread_pointer(const struct mg_connection *conn);
+
+
+/* Set user data for the current connection. */
+/* Note: This function is deprecated. Use the init_connection callback
+ instead to initialize the user connection data pointer. It is
+ reccomended to supply a pointer to some user defined data structure
+ as conn_data initializer in init_connection. In case it is required
+ to change some data after the init_connection call, store another
+ data pointer in the user defined data structure and modify that
+ pointer. In either case, after the init_connection callback, only
+ calls to mg_get_user_connection_data should be required. */
+CIVETWEB_API void mg_set_user_connection_data(struct mg_connection *conn,
+ void *data);
+
+
+/* Get user data set for the current connection. */
+CIVETWEB_API void *
+mg_get_user_connection_data(const struct mg_connection *conn);
+
+
+/* Get a formatted link corresponding to the current request
+
+ Parameters:
+ conn: current connection information.
+ buf: string buffer (out)
+ buflen: length of the string buffer
+ Returns:
+ <0: error
+ >=0: ok */
+CIVETWEB_API int
+mg_get_request_link(const struct mg_connection *conn, char *buf, size_t buflen);
+
+
+#if defined(MG_LEGACY_INTERFACE) /* 2014-02-21 */
+/* Return array of strings that represent valid configuration options.
+ For each option, option name and default value is returned, i.e. the
+ number of entries in the array equals to number_of_options x 2.
+ Array is NULL terminated. */
+/* Deprecated: Use mg_get_valid_options instead. */
+CIVETWEB_API const char **mg_get_valid_option_names(void);
+#endif
+
+
+struct mg_option {
+ const char *name;
+ int type;
+ const char *default_value;
+};
+
+/* Old nomenclature */
+#if defined(MG_LEGACY_INTERFACE) /* 2017-10-05 */
+enum {
+ CONFIG_TYPE_UNKNOWN = 0x0,
+ CONFIG_TYPE_NUMBER = 0x1,
+ CONFIG_TYPE_STRING = 0x2,
+ CONFIG_TYPE_FILE = 0x3,
+ CONFIG_TYPE_DIRECTORY = 0x4,
+ CONFIG_TYPE_BOOLEAN = 0x5,
+ CONFIG_TYPE_EXT_PATTERN = 0x6,
+ CONFIG_TYPE_STRING_LIST = 0x7,
+ CONFIG_TYPE_STRING_MULTILINE = 0x8
+};
+#endif
+
+/* New nomenclature */
+enum {
+ MG_CONFIG_TYPE_UNKNOWN = 0x0,
+ MG_CONFIG_TYPE_NUMBER = 0x1,
+ MG_CONFIG_TYPE_STRING = 0x2,
+ MG_CONFIG_TYPE_FILE = 0x3,
+ MG_CONFIG_TYPE_DIRECTORY = 0x4,
+ MG_CONFIG_TYPE_BOOLEAN = 0x5,
+ MG_CONFIG_TYPE_EXT_PATTERN = 0x6,
+ MG_CONFIG_TYPE_STRING_LIST = 0x7,
+ MG_CONFIG_TYPE_STRING_MULTILINE = 0x8,
+ MG_CONFIG_TYPE_YES_NO_OPTIONAL = 0x9
+};
+
+/* Return array of struct mg_option, representing all valid configuration
+ options of civetweb.c.
+ The array is terminated by a NULL name option. */
+CIVETWEB_API const struct mg_option *mg_get_valid_options(void);
+
+
+struct mg_server_port {
+ int protocol; /* 1 = IPv4, 2 = IPv6, 3 = both */
+ int port; /* port number */
+ int is_ssl; /* https port: 0 = no, 1 = yes */
+ int is_redirect; /* redirect all requests: 0 = no, 1 = yes */
+ int _reserved1;
+ int _reserved2;
+ int _reserved3;
+ int _reserved4;
+};
+
+/* Legacy name */
+#define mg_server_ports mg_server_port
+
+
+/* Get the list of ports that civetweb is listening on.
+ The parameter size is the size of the ports array in elements.
+ The caller is responsibility to allocate the required memory.
+ This function returns the number of struct mg_server_port elements
+ filled in, or <0 in case of an error. */
+CIVETWEB_API int mg_get_server_ports(const struct mg_context *ctx,
+ int size,
+ struct mg_server_port *ports);
+
+
+#if defined(MG_LEGACY_INTERFACE) /* 2017-04-02 */
+/* Deprecated: Use mg_get_server_ports instead. */
+CIVETWEB_API size_t mg_get_ports(const struct mg_context *ctx,
+ size_t size,
+ int *ports,
+ int *ssl);
+#endif
+
+
+/* Add, edit or delete the entry in the passwords file.
+ *
+ * This function allows an application to manipulate .htpasswd files on the
+ * fly by adding, deleting and changing user records. This is one of the
+ * several ways of implementing authentication on the server side. For another,
+ * cookie-based way please refer to the examples/chat in the source tree.
+ *
+ * Parameter:
+ * passwords_file_name: Path and name of a file storing multiple passwords
+ * realm: HTTP authentication realm (authentication domain) name
+ * user: User name
+ * password:
+ * If password is not NULL, entry modified or added.
+ * If password is NULL, entry is deleted.
+ *
+ * Return:
+ * 1 on success, 0 on error.
+ */
+CIVETWEB_API int mg_modify_passwords_file(const char *passwords_file_name,
+ const char *realm,
+ const char *user,
+ const char *password);
+
+
+/* Return information associated with the request.
+ * Use this function to implement a server and get data about a request
+ * from a HTTP/HTTPS client.
+ * Note: Before CivetWeb 1.10, this function could be used to read
+ * a response from a server, when implementing a client, although the
+ * values were never returned in appropriate mg_request_info elements.
+ * It is strongly advised to use mg_get_response_info for clients.
+ */
+CIVETWEB_API const struct mg_request_info *
+mg_get_request_info(const struct mg_connection *);
+
+
+/* Return information associated with a HTTP/HTTPS response.
+ * Use this function in a client, to check the response from
+ * the server. */
+CIVETWEB_API const struct mg_response_info *
+mg_get_response_info(const struct mg_connection *);
+
+
+/* Send data to the client.
+ Return:
+ 0 when the connection has been closed
+ -1 on error
+ >0 number of bytes written on success */
+CIVETWEB_API int mg_write(struct mg_connection *, const void *buf, size_t len);
+
+
+/* Send data to a websocket client wrapped in a websocket frame. Uses
+ mg_lock_connection to ensure that the transmission is not interrupted,
+ i.e., when the application is proactively communicating and responding to
+ a request simultaneously.
+
+ Send data to a websocket client wrapped in a websocket frame.
+ This function is available when civetweb is compiled with -DUSE_WEBSOCKET
+
+ Return:
+ 0 when the connection has been closed
+ -1 on error
+ >0 number of bytes written on success */
+CIVETWEB_API int mg_websocket_write(struct mg_connection *conn,
+ int opcode,
+ const char *data,
+ size_t data_len);
+
+
+/* Send data to a websocket server wrapped in a masked websocket frame. Uses
+ mg_lock_connection to ensure that the transmission is not interrupted,
+ i.e., when the application is proactively communicating and responding to
+ a request simultaneously.
+
+ Send data to a websocket server wrapped in a masked websocket frame.
+ This function is available when civetweb is compiled with -DUSE_WEBSOCKET
+
+ Return:
+ 0 when the connection has been closed
+ -1 on error
+ >0 number of bytes written on success */
+CIVETWEB_API int mg_websocket_client_write(struct mg_connection *conn,
+ int opcode,
+ const char *data,
+ size_t data_len);
+
+
+/* Blocks until unique access is obtained to this connection. Intended for use
+ with websockets only.
+ Invoke this before mg_write or mg_printf when communicating with a
+ websocket if your code has server-initiated communication as well as
+ communication in direct response to a message. */
+CIVETWEB_API void mg_lock_connection(struct mg_connection *conn);
+CIVETWEB_API void mg_unlock_connection(struct mg_connection *conn);
+
+
+#if defined(MG_LEGACY_INTERFACE) /* 2014-06-21 */
+#define mg_lock mg_lock_connection
+#define mg_unlock mg_unlock_connection
+#endif
+
+
+/* Lock server context. This lock may be used to protect resources
+ that are shared between different connection/worker threads. */
+CIVETWEB_API void mg_lock_context(struct mg_context *ctx);
+CIVETWEB_API void mg_unlock_context(struct mg_context *ctx);
+
+
+/* Opcodes, from http://tools.ietf.org/html/rfc6455 */
+#if defined(MG_LEGACY_INTERFACE) /* 2017-10-05 */
+enum {
+ WEBSOCKET_OPCODE_CONTINUATION = 0x0,
+ WEBSOCKET_OPCODE_TEXT = 0x1,
+ WEBSOCKET_OPCODE_BINARY = 0x2,
+ WEBSOCKET_OPCODE_CONNECTION_CLOSE = 0x8,
+ WEBSOCKET_OPCODE_PING = 0x9,
+ WEBSOCKET_OPCODE_PONG = 0xa
+};
+#endif
+
+/* New nomenclature */
+enum {
+ MG_WEBSOCKET_OPCODE_CONTINUATION = 0x0,
+ MG_WEBSOCKET_OPCODE_TEXT = 0x1,
+ MG_WEBSOCKET_OPCODE_BINARY = 0x2,
+ MG_WEBSOCKET_OPCODE_CONNECTION_CLOSE = 0x8,
+ MG_WEBSOCKET_OPCODE_PING = 0x9,
+ MG_WEBSOCKET_OPCODE_PONG = 0xa
+};
+
+/* Macros for enabling compiler-specific checks for printf-like arguments. */
+#undef PRINTF_FORMAT_STRING
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+#include <sal.h>
+#if defined(_MSC_VER) && _MSC_VER > 1400
+#define PRINTF_FORMAT_STRING(s) _Printf_format_string_ s
+#else
+#define PRINTF_FORMAT_STRING(s) __format_string s
+#endif
+#else
+#define PRINTF_FORMAT_STRING(s) s
+#endif
+
+#ifdef __GNUC__
+#define PRINTF_ARGS(x, y) __attribute__((format(printf, x, y)))
+#else
+#define PRINTF_ARGS(x, y)
+#endif
+
+
+/* Send data to the client using printf() semantics.
+ Works exactly like mg_write(), but allows to do message formatting. */
+CIVETWEB_API int mg_printf(struct mg_connection *,
+ PRINTF_FORMAT_STRING(const char *fmt),
+ ...) PRINTF_ARGS(2, 3);
+
+
+/* Send a part of the message body, if chunked transfer encoding is set.
+ * Only use this function after sending a complete HTTP request or response
+ * header with "Transfer-Encoding: chunked" set. */
+CIVETWEB_API int mg_send_chunk(struct mg_connection *conn,
+ const char *chunk,
+ unsigned int chunk_len);
+
+
+/* Send contents of the entire file together with HTTP headers.
+ * Parameters:
+ * conn: Current connection information.
+ * path: Full path to the file to send.
+ * This function has been superseded by mg_send_mime_file
+ */
+CIVETWEB_API void mg_send_file(struct mg_connection *conn, const char *path);
+
+
+/* Send contents of the file without HTTP headers.
+ * The code must send a valid HTTP response header before using this function.
+ *
+ * Parameters:
+ * conn: Current connection information.
+ * path: Full path to the file to send.
+ *
+ * Return:
+ * < 0 Error
+ */
+CIVETWEB_API int mg_send_file_body(struct mg_connection *conn,
+ const char *path);
+
+
+/* Send HTTP error reply. */
+CIVETWEB_API int mg_send_http_error(struct mg_connection *conn,
+ int status_code,
+ PRINTF_FORMAT_STRING(const char *fmt),
+ ...) PRINTF_ARGS(3, 4);
+
+
+/* Send "HTTP 200 OK" response header.
+ * After calling this function, use mg_write or mg_send_chunk to send the
+ * response body.
+ * Parameters:
+ * conn: Current connection handle.
+ * mime_type: Set Content-Type for the following content.
+ * content_length: Size of the following content, if content_length >= 0.
+ * Will set transfer-encoding to chunked, if set to -1.
+ * Return:
+ * < 0 Error
+ */
+CIVETWEB_API int mg_send_http_ok(struct mg_connection *conn,
+ const char *mime_type,
+ long long content_length);
+
+
+/* Send "HTTP 30x" redirect response.
+ * The response has content-size zero: do not send any body data after calling
+ * this function.
+ * Parameters:
+ * conn: Current connection handle.
+ * target_url: New location.
+ * redirect_code: HTTP redirect type. Could be 301, 302, 303, 307, 308.
+ * Return:
+ * < 0 Error (-1 send error, -2 parameter error)
+ */
+CIVETWEB_API int mg_send_http_redirect(struct mg_connection *conn,
+ const char *target_url,
+ int redirect_code);
+
+
+/* Send HTTP digest access authentication request.
+ * Browsers will send a user name and password in their next request, showing
+ * an authentication dialog if the password is not stored.
+ * Parameters:
+ * conn: Current connection handle.
+ * realm: Authentication realm. If NULL is supplied, the sever domain
+ * set in the authentication_domain configuration is used.
+ * Return:
+ * < 0 Error
+ */
+CIVETWEB_API int
+mg_send_digest_access_authentication_request(struct mg_connection *conn,
+ const char *realm);
+
+
+/* Check if the current request has a valid authentication token set.
+ * A file is used to provide a list of valid user names, realms and
+ * password hashes. The file can be created and modified using the
+ * mg_modify_passwords_file API function.
+ * Parameters:
+ * conn: Current connection handle.
+ * realm: Authentication realm. If NULL is supplied, the sever domain
+ * set in the authentication_domain configuration is used.
+ * filename: Path and name of a file storing multiple password hashes.
+ * Return:
+ * > 0 Valid authentication
+ * 0 Invalid authentication
+ * < 0 Error (all values < 0 should be considered as invalid
+ * authentication, future error codes will have negative
+ * numbers)
+ * -1 Parameter error
+ * -2 File not found
+ */
+CIVETWEB_API int
+mg_check_digest_access_authentication(struct mg_connection *conn,
+ const char *realm,
+ const char *filename);
+
+
+/* Send contents of the entire file together with HTTP headers.
+ * Parameters:
+ * conn: Current connection handle.
+ * path: Full path to the file to send.
+ * mime_type: Content-Type for file. NULL will cause the type to be
+ * looked up by the file extension.
+ */
+CIVETWEB_API void mg_send_mime_file(struct mg_connection *conn,
+ const char *path,
+ const char *mime_type);
+
+
+/* Send contents of the entire file together with HTTP headers.
+ Parameters:
+ conn: Current connection information.
+ path: Full path to the file to send.
+ mime_type: Content-Type for file. NULL will cause the type to be
+ looked up by the file extension.
+ additional_headers: Additional custom header fields appended to the header.
+ Each header should start with an X-, to ensure it is
+ not included twice.
+ NULL does not append anything.
+*/
+CIVETWEB_API void mg_send_mime_file2(struct mg_connection *conn,
+ const char *path,
+ const char *mime_type,
+ const char *additional_headers);
+
+
+/* Store body data into a file. */
+CIVETWEB_API long long mg_store_body(struct mg_connection *conn,
+ const char *path);
+/* Read entire request body and store it in a file "path".
+ Return:
+ < 0 Error
+ >= 0 Number of bytes stored in file "path".
+*/
+
+
+/* Read data from the remote end, return number of bytes read.
+ Return:
+ 0 connection has been closed by peer. No more data could be read.
+ < 0 read error. No more data could be read from the connection.
+ > 0 number of bytes read into the buffer. */
+CIVETWEB_API int mg_read(struct mg_connection *, void *buf, size_t len);
+
+
+/* Get the value of particular HTTP header.
+
+ This is a helper function. It traverses request_info->http_headers array,
+ and if the header is present in the array, returns its value. If it is
+ not present, NULL is returned. */
+CIVETWEB_API const char *mg_get_header(const struct mg_connection *,
+ const char *name);
+
+
+/* Get a value of particular form variable.
+
+ Parameters:
+ data: pointer to form-uri-encoded buffer. This could be either POST data,
+ or request_info.query_string.
+ data_len: length of the encoded data.
+ var_name: variable name to decode from the buffer
+ dst: destination buffer for the decoded variable
+ dst_len: length of the destination buffer
+
+ Return:
+ On success, length of the decoded variable.
+ On error:
+ -1 (variable not found).
+ -2 (destination buffer is NULL, zero length or too small to hold the
+ decoded variable).
+
+ Destination buffer is guaranteed to be '\0' - terminated if it is not
+ NULL or zero length. */
+CIVETWEB_API int mg_get_var(const char *data,
+ size_t data_len,
+ const char *var_name,
+ char *dst,
+ size_t dst_len);
+
+
+/* Get a value of particular form variable.
+
+ Parameters:
+ data: pointer to form-uri-encoded buffer. This could be either POST data,
+ or request_info.query_string.
+ data_len: length of the encoded data.
+ var_name: variable name to decode from the buffer
+ dst: destination buffer for the decoded variable
+ dst_len: length of the destination buffer
+ occurrence: which occurrence of the variable, 0 is the first, 1 the
+ second...
+ this makes it possible to parse a query like
+ b=x&a=y&a=z which will have occurrence values b:0, a:0 and a:1
+
+ Return:
+ On success, length of the decoded variable.
+ On error:
+ -1 (variable not found).
+ -2 (destination buffer is NULL, zero length or too small to hold the
+ decoded variable).
+
+ Destination buffer is guaranteed to be '\0' - terminated if it is not
+ NULL or zero length. */
+CIVETWEB_API int mg_get_var2(const char *data,
+ size_t data_len,
+ const char *var_name,
+ char *dst,
+ size_t dst_len,
+ size_t occurrence);
+
+
+/* Fetch value of certain cookie variable into the destination buffer.
+
+ Destination buffer is guaranteed to be '\0' - terminated. In case of
+ failure, dst[0] == '\0'. Note that RFC allows many occurrences of the same
+ parameter. This function returns only first occurrence.
+
+ Return:
+ On success, value length.
+ On error:
+ -1 (either "Cookie:" header is not present at all or the requested
+ parameter is not found).
+ -2 (destination buffer is NULL, zero length or too small to hold the
+ value). */
+CIVETWEB_API int mg_get_cookie(const char *cookie,
+ const char *var_name,
+ char *buf,
+ size_t buf_len);
+
+
+/* Download data from the remote web server.
+ host: host name to connect to, e.g. "foo.com", or "10.12.40.1".
+ port: port number, e.g. 80.
+ use_ssl: whether to use SSL connection.
+ error_buffer, error_buffer_size: error message placeholder.
+ request_fmt,...: HTTP request.
+ Return:
+ On success, valid pointer to the new connection, suitable for mg_read().
+ On error, NULL. error_buffer contains error message.
+ Example:
+ char ebuf[100];
+ struct mg_connection *conn;
+ conn = mg_download("google.com", 80, 0, ebuf, sizeof(ebuf),
+ "%s", "GET / HTTP/1.0\r\nHost: google.com\r\n\r\n");
+ */
+CIVETWEB_API struct mg_connection *
+mg_download(const char *host,
+ int port,
+ int use_ssl,
+ char *error_buffer,
+ size_t error_buffer_size,
+ PRINTF_FORMAT_STRING(const char *request_fmt),
+ ...) PRINTF_ARGS(6, 7);
+
+
+/* Close the connection opened by mg_download(). */
+CIVETWEB_API void mg_close_connection(struct mg_connection *conn);
+
+
+#if defined(MG_LEGACY_INTERFACE) /* 2016-05-14 */
+/* File upload functionality. Each uploaded file gets saved into a temporary
+ file and MG_UPLOAD event is sent.
+ Return number of uploaded files.
+ Deprecated: Use mg_handle_form_request instead. */
+CIVETWEB_API int mg_upload(struct mg_connection *conn,
+ const char *destination_dir);
+#endif
+
+
+/* This structure contains callback functions for handling form fields.
+ It is used as an argument to mg_handle_form_request. */
+struct mg_form_data_handler {
+ /* This callback function is called, if a new field has been found.
+ * The return value of this callback is used to define how the field
+ * should be processed.
+ *
+ * Parameters:
+ * key: Name of the field ("name" property of the HTML input field).
+ * filename: Name of a file to upload, at the client computer.
+ * Only set for input fields of type "file", otherwise NULL.
+ * path: Output parameter: File name (incl. path) to store the file
+ * at the server computer. Only used if FORM_FIELD_STORAGE_STORE
+ * is returned by this callback. Existing files will be
+ * overwritten.
+ * pathlen: Length of the buffer for path.
+ * user_data: Value of the member user_data of mg_form_data_handler
+ *
+ * Return value:
+ * The callback must return the intended storage for this field
+ * (See FORM_FIELD_STORAGE_*).
+ */
+ int (*field_found)(const char *key,
+ const char *filename,
+ char *path,
+ size_t pathlen,
+ void *user_data);
+
+ /* If the "field_found" callback returned FORM_FIELD_STORAGE_GET,
+ * this callback will receive the field data.
+ *
+ * Parameters:
+ * key: Name of the field ("name" property of the HTML input field).
+ * value: Value of the input field.
+ * user_data: Value of the member user_data of mg_form_data_handler
+ *
+ * Return value:
+ * The return code determines how the server should continue processing
+ * the current request (See MG_FORM_FIELD_HANDLE_*).
+ */
+ int (*field_get)(const char *key,
+ const char *value,
+ size_t valuelen,
+ void *user_data);
+
+ /* If the "field_found" callback returned FORM_FIELD_STORAGE_STORE,
+ * the data will be stored into a file. If the file has been written
+ * successfully, this callback will be called. This callback will
+ * not be called for only partially uploaded files. The
+ * mg_handle_form_request function will either store the file completely
+ * and call this callback, or it will remove any partial content and
+ * not call this callback function.
+ *
+ * Parameters:
+ * path: Path of the file stored at the server.
+ * file_size: Size of the stored file in bytes.
+ * user_data: Value of the member user_data of mg_form_data_handler
+ *
+ * Return value:
+ * The return code determines how the server should continue processing
+ * the current request (See MG_FORM_FIELD_HANDLE_*).
+ */
+ int (*field_store)(const char *path, long long file_size, void *user_data);
+
+ /* User supplied argument, passed to all callback functions. */
+ void *user_data;
+};
+
+
+/* Return values definition for the "field_found" callback in
+ * mg_form_data_handler. */
+#if defined(MG_LEGACY_INTERFACE) /* 2017-10-05 */
+enum {
+ /* Skip this field (neither get nor store it). Continue with the
+ * next field. */
+ FORM_FIELD_STORAGE_SKIP = 0x0,
+ /* Get the field value. */
+ FORM_FIELD_STORAGE_GET = 0x1,
+ /* Store the field value into a file. */
+ FORM_FIELD_STORAGE_STORE = 0x2,
+ /* Stop parsing this request. Skip the remaining fields. */
+ FORM_FIELD_STORAGE_ABORT = 0x10
+};
+#endif
+/* New nomenclature */
+enum {
+ /* Skip this field (neither get nor store it). Continue with the
+ * next field. */
+ MG_FORM_FIELD_STORAGE_SKIP = 0x0,
+ /* Get the field value. */
+ MG_FORM_FIELD_STORAGE_GET = 0x1,
+ /* Store the field value into a file. */
+ MG_FORM_FIELD_STORAGE_STORE = 0x2,
+ /* Stop parsing this request. Skip the remaining fields. */
+ MG_FORM_FIELD_STORAGE_ABORT = 0x10
+};
+
+/* Return values for "field_get" and "field_store" */
+enum {
+ /* Only "field_get": If there is more data in this field, get the next
+ * chunk. Otherwise: handle the next field. */
+ MG_FORM_FIELD_HANDLE_GET = 0x1,
+ /* Handle the next field */
+ MG_FORM_FIELD_HANDLE_NEXT = 0x8,
+ /* Stop parsing this request */
+ MG_FORM_FIELD_HANDLE_ABORT = 0x10
+};
+
+
+/* Process form data.
+ * Returns the number of fields handled, or < 0 in case of an error.
+ * Note: It is possible that several fields are already handled successfully
+ * (e.g., stored into files), before the request handling is stopped with an
+ * error. In this case a number < 0 is returned as well.
+ * In any case, it is the duty of the caller to remove files once they are
+ * no longer required. */
+CIVETWEB_API int mg_handle_form_request(struct mg_connection *conn,
+ struct mg_form_data_handler *fdh);
+
+
+/* Convenience function -- create detached thread.
+ Return: 0 on success, non-0 on error. */
+typedef void *(*mg_thread_func_t)(void *);
+CIVETWEB_API int mg_start_thread(mg_thread_func_t f, void *p);
+
+
+/* Return builtin mime type for the given file name.
+ For unrecognized extensions, "text/plain" is returned. */
+CIVETWEB_API const char *mg_get_builtin_mime_type(const char *file_name);
+
+
+/* Get text representation of HTTP status code. */
+CIVETWEB_API const char *
+mg_get_response_code_text(const struct mg_connection *conn, int response_code);
+
+
+/* Return CivetWeb version. */
+CIVETWEB_API const char *mg_version(void);
+
+
+/* URL-decode input buffer into destination buffer.
+ 0-terminate the destination buffer.
+ form-url-encoded data differs from URI encoding in a way that it
+ uses '+' as character for space, see RFC 1866 section 8.2.1
+ http://ftp.ics.uci.edu/pub/ietf/html/rfc1866.txt
+ Return: length of the decoded data, or -1 if dst buffer is too small. */
+CIVETWEB_API int mg_url_decode(const char *src,
+ int src_len,
+ char *dst,
+ int dst_len,
+ int is_form_url_encoded);
+
+
+/* URL-encode input buffer into destination buffer.
+ returns the length of the resulting buffer or -1
+ is the buffer is too small. */
+CIVETWEB_API int mg_url_encode(const char *src, char *dst, size_t dst_len);
+
+
+/* MD5 hash given strings.
+ Buffer 'buf' must be 33 bytes long. Varargs is a NULL terminated list of
+ ASCIIz strings. When function returns, buf will contain human-readable
+ MD5 hash. Example:
+ char buf[33];
+ mg_md5(buf, "aa", "bb", NULL); */
+CIVETWEB_API char *mg_md5(char buf[33], ...);
+
+
+/* Print error message to the opened error log stream.
+ This utilizes the provided logging configuration.
+ conn: connection (not used for sending data, but to get perameters)
+ fmt: format string without the line return
+ ...: variable argument list
+ Example:
+ mg_cry(conn,"i like %s", "logging"); */
+CIVETWEB_API void mg_cry(const struct mg_connection *conn,
+ PRINTF_FORMAT_STRING(const char *fmt),
+ ...) PRINTF_ARGS(2, 3);
+
+
+/* utility methods to compare two buffers, case insensitive. */
+CIVETWEB_API int mg_strcasecmp(const char *s1, const char *s2);
+CIVETWEB_API int mg_strncasecmp(const char *s1, const char *s2, size_t len);
+
+
+/* Connect to a websocket as a client
+ Parameters:
+ host: host to connect to, i.e. "echo.websocket.org" or "192.168.1.1" or
+ "localhost"
+ port: server port
+ use_ssl: make a secure connection to server
+ error_buffer, error_buffer_size: buffer for an error message
+ path: server path you are trying to connect to, i.e. if connection to
+ localhost/app, path should be "/app"
+ origin: value of the Origin HTTP header
+ data_func: callback that should be used when data is received from the
+ server
+ user_data: user supplied argument
+
+ Return:
+ On success, valid mg_connection object.
+ On error, NULL. Se error_buffer for details.
+*/
+CIVETWEB_API struct mg_connection *
+mg_connect_websocket_client(const char *host,
+ int port,
+ int use_ssl,
+ char *error_buffer,
+ size_t error_buffer_size,
+ const char *path,
+ const char *origin,
+ mg_websocket_data_handler data_func,
+ mg_websocket_close_handler close_func,
+ void *user_data);
+
+
+/* Connect to a TCP server as a client (can be used to connect to a HTTP server)
+ Parameters:
+ host: host to connect to, i.e. "www.wikipedia.org" or "192.168.1.1" or
+ "localhost"
+ port: server port
+ use_ssl: make a secure connection to server
+ error_buffer, error_buffer_size: buffer for an error message
+
+ Return:
+ On success, valid mg_connection object.
+ On error, NULL. Se error_buffer for details.
+*/
+CIVETWEB_API struct mg_connection *mg_connect_client(const char *host,
+ int port,
+ int use_ssl,
+ char *error_buffer,
+ size_t error_buffer_size);
+
+
+struct mg_client_options {
+ const char *host;
+ int port;
+ const char *client_cert;
+ const char *server_cert;
+ const char *host_name;
+ /* TODO: add more data */
+};
+
+
+CIVETWEB_API struct mg_connection *
+mg_connect_client_secure(const struct mg_client_options *client_options,
+ char *error_buffer,
+ size_t error_buffer_size);
+
+
+enum { TIMEOUT_INFINITE = -1 };
+enum { MG_TIMEOUT_INFINITE = -1 };
+
+/* Wait for a response from the server
+ Parameters:
+ conn: connection
+ ebuf, ebuf_len: error message placeholder.
+ timeout: time to wait for a response in milliseconds (if < 0 then wait
+ forever)
+
+ Return:
+ On success, >= 0
+ On error/timeout, < 0
+*/
+CIVETWEB_API int mg_get_response(struct mg_connection *conn,
+ char *ebuf,
+ size_t ebuf_len,
+ int timeout);
+
+
+/* Check which features where set when the civetweb library has been compiled.
+ The function explicitly addresses compile time defines used when building
+ the library - it does not mean, the feature has been initialized using a
+ mg_init_library call.
+ mg_check_feature can be called anytime, even before mg_init_library has
+ been called.
+
+ Parameters:
+ feature: specifies which feature should be checked
+ The value is a bit mask. The individual bits are defined as:
+ 1 serve files (NO_FILES not set)
+ 2 support HTTPS (NO_SSL not set)
+ 4 support CGI (NO_CGI not set)
+ 8 support IPv6 (USE_IPV6 set)
+ 16 support WebSocket (USE_WEBSOCKET set)
+ 32 support Lua scripts and Lua server pages (USE_LUA is set)
+ 64 support server side JavaScript (USE_DUKTAPE is set)
+ 128 support caching (NO_CACHING not set)
+ 256 support server statistics (USE_SERVER_STATS is set)
+ The result is undefined, if bits are set that do not represent a
+ defined feature (currently: feature >= 512).
+ The result is undefined, if no bit is set (feature == 0).
+
+ Return:
+ If feature is available, the corresponding bit is set
+ If feature is not available, the bit is 0
+*/
+CIVETWEB_API unsigned mg_check_feature(unsigned feature);
+
+
+/* Get information on the system. Useful for support requests.
+ Parameters:
+ buffer: Store system information as string here.
+ buflen: Length of buffer (including a byte required for a terminating 0).
+ Return:
+ Available size of system information, exluding a terminating 0.
+ The information is complete, if the return value is smaller than buflen.
+ The result is a JSON formatted string, the exact content may vary.
+ Note:
+ It is possible to determine the required buflen, by first calling this
+ function with buffer = NULL and buflen = NULL. The required buflen is
+ one byte more than the returned value.
+*/
+CIVETWEB_API int mg_get_system_info(char *buffer, int buflen);
+
+
+/* Get context information. Useful for server diagnosis.
+ Parameters:
+ ctx: Context handle
+ buffer: Store context information here.
+ buflen: Length of buffer (including a byte required for a terminating 0).
+ Return:
+ Available size of system information, exluding a terminating 0.
+ The information is complete, if the return value is smaller than buflen.
+ The result is a JSON formatted string, the exact content may vary.
+ Note:
+ It is possible to determine the required buflen, by first calling this
+ function with buffer = NULL and buflen = NULL. The required buflen is
+ one byte more than the returned value. However, since the available
+ context information changes, you should allocate a few bytes more.
+*/
+CIVETWEB_API int
+mg_get_context_info(const struct mg_context *ctx, char *buffer, int buflen);
+
+
+#ifdef MG_EXPERIMENTAL_INTERFACES
+/* Get connection information. Useful for server diagnosis.
+ Parameters:
+ ctx: Context handle
+ idx: Connection index
+ buffer: Store context information here.
+ buflen: Length of buffer (including a byte required for a terminating 0).
+ Return:
+ Available size of system information, exluding a terminating 0.
+ The information is complete, if the return value is smaller than buflen.
+ The result is a JSON formatted string, the exact content may vary.
+ Note:
+ It is possible to determine the required buflen, by first calling this
+ function with buffer = NULL and buflen = NULL. The required buflen is
+ one byte more than the returned value. However, since the available
+ context information changes, you should allocate a few bytes more.
+*/
+CIVETWEB_API int mg_get_connection_info(const struct mg_context *ctx,
+ int idx,
+ char *buffer,
+ int buflen);
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* CIVETWEB_HEADER_INCLUDED */
+
+#define INIT_REQUEST_COUNT (8)
+
+/* Server data allocated on heap (not in ECS). This ensures the pointer is
+ * stable and cannot change due to data moving around. */
+typedef struct CivetServerData {
+ struct mg_context *server;
+
+ /* Port number of server */
+ int16_t port;
+
+ /* Cache endpoints defined in ECS, so we won't need to access the ECS system
+ * when receiving a request, which would not be thread safe as civetweb does
+ * not provide the option to manually control threading. */
+ ecs_vector_t *endpoints;
+ ecs_vector_t *endpoint_entities;
+
+ /* Number of requests waiting */
+ int requests_waiting;
+
+ /* Access to ECS world */
+ ecs_world_t *world;
+} CivetServerData;
+
+/* ECS server component only contains a pointer to the heap structure */
+typedef struct EcsCivetServer {
+ CivetServerData *server_data;
+} EcsCivetServer;
+
+typedef struct EndpointEvalCtx {
+ EcsHttpRequest request;
+ CivetServerData *server_data;
+} EndpointEvalCtx;
+
+static
+EcsHttpMethod method_from_str(
+ const char *method)
+{
+ if (!strcmp(method, "GET")) return EcsHttpGet;
+ else if (!strcmp(method, "POST")) return EcsHttpPost;
+ else if (!strcmp(method, "PUT")) return EcsHttpPut;
+ else if (!strcmp(method, "DELETE")) return EcsHttpDelete;
+ else return EcsHttpMethodUnknown;
+}
+
+static
+int CbLogMessage(
+ const struct mg_connection *conn,
+ const char *msg)
+{
+ printf("civetweb: %s\n", (char*)msg);
+ return 1;
+}
+
+static
+int CbWsConnect(
+ const struct mg_connection *conn,
+ void *cbdata)
+{
+ return 1;
+}
+
+static
+void CbWsReady(
+ struct mg_connection *conn,
+ void *cbdata)
+{
+}
+
+static
+int CbWsData(
+ struct mg_connection *conn,
+ int bits,
+ char *data,
+ size_t len,
+ void *cbdata)
+{
+ return 1;
+}
+
+static
+void CbWsClose(
+ const struct mg_connection *conn,
+ void *cbdata)
+{
+}
+
+static
+void do_reply(
+ struct mg_connection *conn,
+ uint16_t status,
+ char *header,
+ char *body)
+{
+ ecs_strbuf_t buf = ECS_STRBUF_INIT;
+ ecs_strbuf_append(&buf, "HTTP/1.1 %d OK\r\nAccess-Control-Allow-Origin: *\r\n", status);
+ if (header) {
+ ecs_strbuf_appendstr_zerocpy(&buf, header);
+ }
+ ecs_strbuf_appendstr(&buf, "\r\n");
+ if (body) ecs_strbuf_appendstr_zerocpy(&buf, body);
+ char *msg = ecs_strbuf_get(&buf);
+ mg_write(conn, msg, strlen(msg));
+ free(msg);
+}
+
+static
+bool eval_endpoints(EndpointEvalCtx *ctx) {
+ EcsHttpReply reply = {.status = 200};
+ EcsHttpRequest *request = &ctx->request;
+ CivetServerData *server_data = ctx->server_data;
+ struct mg_connection *conn = request->ctx;
+ const char *r_url = request->url;
+ bool handled = false;
+ if (r_url[0] == '/') r_url ++;
+
+ EcsHttpEndpoint *buffer = ecs_vector_first(server_data->endpoints, EcsHttpEndpoint);
+ ecs_entity_t *entity_buffer = ecs_vector_first(server_data->endpoint_entities, ecs_entity_t);
+ uint32_t i, count = ecs_vector_count(server_data->endpoints);
+
+ for (i = 0; i < count; i ++) {
+ EcsHttpEndpoint *endpoint = &buffer[i];
+ const char *e_url = endpoint->url;
+ if (e_url[0] == '/') e_url ++;
+ uint32_t e_url_len = strlen(e_url);
+
+ if (!strncmp(e_url, r_url, e_url_len)) {
+ const char *orig_r_url = r_url;
+ r_url = r_url + e_url_len;
+
+ if (!r_url[0] || r_url[0] == '/' || r_url == orig_r_url) {
+ ecs_entity_t entity = entity_buffer[i];
+ ecs_world_t *world = server_data->world;
+ if (r_url[0]) {
+ if (r_url != orig_r_url) {
+ request->relative_url = r_url + 1;
+ } else {
+ request->relative_url = r_url;
+ }
+ } else {
+ request->relative_url = "";
+ }
+
+ ecs_trace_2("civet: 201: endpoint '/%s' matched", e_url);
+
+ handled = endpoint->action(world, entity, endpoint, request, &reply);
+
+ if (handled) {
+ if (reply.is_file) {
+ mg_send_file(conn, reply.body);
+ } else {
+ do_reply(conn, reply.status, reply.header, reply.body);
+ }
+ break;
+ }
+ } else {
+ continue;
+ }
+ }
+ }
+
+ return handled;
+}
+
+static
+int CbOnRequest(
+ struct mg_connection *conn,
+ void *cbdata)
+{
+ const struct mg_request_info *req_info = mg_get_request_info(conn);
+ EcsHttpMethod method = method_from_str(req_info->request_method);
+ CivetServerData *server_data = cbdata;
+
+ EndpointEvalCtx eval_ctx = {
+ .request = {
+ .method = method,
+ .url = req_info->local_uri,
+ .params = req_info->query_string,
+ .ctx = conn
+ },
+ .server_data = server_data
+ };
+
+ ecs_trace_2("civet: %s: uri=%s query=%s",
+ req_info->request_method, req_info->local_uri, req_info->query_string);
+
+ /* Evaluate request for all endpoints for this server */
+ ecs_begin_wait(server_data->world);
+ ecs_lock(server_data->world);
+ ecs_end_wait(server_data->world);
+
+ bool handled = eval_endpoints(&eval_ctx);
+ ecs_unlock(server_data->world);
+
+ if (!handled) {
+ do_reply(conn, 404, NULL, NULL);
+ ecs_trace_2("civet: 404: no endpoint found");
+ }
+
+ return 1;
+}
+
+static
+void CivetDeinit(ecs_iter_t *it) {
+ EcsCivetServer *c = ecs_column(it, EcsCivetServer, 1);
+
+ int i;
+ for (i = 0; i < it->count; i ++) {
+ CivetServerData *data = c[i].server_data;
+ mg_stop(data->server);
+ ecs_os_free(data);
+ }
+}
+
+static
+void CivetSet(ecs_iter_t *it) {
+ ecs_world_t *world = it->world;
+
+ EcsHttpServer *server = ecs_column(it, EcsHttpServer, 1);
+ EcsCivetServer *civet_server = ecs_column(it, EcsCivetServer, 2);
+ ecs_entity_t ecs_typeid(EcsCivetServer) = ecs_column_entity(it, 2);
+
+ int i;
+ for (i = 0; i < it->count; i ++) {
+ /* If this server already exists, check if it uses the same port. If not
+ * it must be recreated. */
+ if (civet_server) {
+ CivetServerData *data = civet_server[i].server_data;
+ if (data->port == server[i].port) {
+ /* Ports are the same, no changes needed */
+ continue;
+ } else {
+ /* Ports are not the same, need to recreate server */
+ mg_stop(data->server);
+ ecs_os_free(data);
+ }
+ }
+
+ char port[15];
+ sprintf(port, "%u", server[i].port);
+
+ const char *options[] = {
+ "document_root", ".",
+ "listening_ports", port,
+ "request_timeout_ms", "10000",
+ "error_log_file", "error.log",
+ "enable_auth_domain_check", "no",
+#if defined(__linux__)
+ "allow_sendfile_call", "true",
+#endif
+ NULL};
+
+ if (!mg_check_feature(8)) {
+ /* IPv6 not supported */
+ }
+
+ if (!mg_check_feature(16)) {
+ /* Websockets not supported */
+ }
+
+ if (!mg_check_feature(2)) {
+ /* SSL not supported */
+ }
+
+ /* Start CivetWeb web server */
+ struct mg_callbacks callbacks;
+ memset(&callbacks, 0, sizeof(callbacks));
+ callbacks.log_message = CbLogMessage;
+
+ /* Add server object to entity */
+ CivetServerData *server_data = ecs_os_malloc(sizeof(CivetServerData));
+ ecs_assert(server_data != NULL, ECS_OUT_OF_MEMORY, NULL);
+
+ ecs_trace_1("civet: starting server on port %u", server[i].port);
+
+ server_data->world = world;
+ server_data->server = mg_start(&callbacks, server_data, options);
+ server_data->endpoints = ecs_vector_new(EcsHttpEndpoint, 0);
+ server_data->endpoint_entities = ecs_vector_new(ecs_entity_t, 0);
+ server_data->requests_waiting = 0;
+ server_data->port = server[i].port;
+
+ /* Add component with Civetweb data */
+ ecs_set(world, it->entities[i], EcsCivetServer, {
+ .server_data = server_data
+ });
+
+ /* Set handler for requests */
+ mg_set_request_handler(server_data->server, "**", CbOnRequest, server_data);
+
+ /* Set websocket handlers */
+ mg_set_websocket_handler(
+ server_data->server, "/", CbWsConnect, CbWsReady, CbWsData,
+ CbWsClose, server_data);
+ }
+}
+
+static
+void CivetUnset(ecs_iter_t *it) {
+ EcsCivetServer *civet_server = ecs_column(it, EcsCivetServer, 1);
+
+ int32_t i;
+ for (i = 0; i < it->count; i ++) {
+ CivetServerData *data = civet_server[i].server_data;
+ mg_stop(data->server);
+ ecs_vector_free(data->endpoints);
+ ecs_vector_free(data->endpoint_entities);
+ ecs_os_free(data);
+ }
+}
+
+static
+ecs_entity_t find_server(
+ ecs_world_t *world,
+ ecs_entity_t ep,
+ ecs_entity_t server)
+{
+ ecs_type_t type = ecs_get_type(world, ep);
+ ecs_entity_t *array = ecs_vector_first(type, ecs_entity_t);
+ uint32_t i, count = ecs_vector_count(type);
+
+ for (i = 0; i < count; i ++) {
+ ecs_entity_t e = array[i];
+ if (e & ECS_CHILDOF) {
+ if (ecs_has_entity(world, e & ECS_COMPONENT_MASK, server)) {
+ return e & ECS_COMPONENT_MASK;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static
+void CivetRegisterEndpoint(ecs_iter_t *it) {
+ EcsHttpEndpoint *ep = ecs_column(it, EcsHttpEndpoint, 1);
+ ecs_entity_t server_component_handle = ecs_column_entity(it, 2);
+
+ int i;
+ for (i = 0; i < it->count; i ++) {
+ ecs_entity_t entity = it->entities[i];
+
+ ecs_entity_t server = find_server(it->world, entity, server_component_handle);
+ if (server) {
+ const EcsCivetServer *c = ecs_get_w_entity(
+ it->world, server, server_component_handle);
+
+ CivetServerData *data = c->server_data;
+
+ EcsHttpEndpoint *new_ep = ecs_vector_add(&data->endpoints, EcsHttpEndpoint);
+ *new_ep = ep[i];
+ ecs_entity_t *new_entity = ecs_vector_add(&data->endpoint_entities, ecs_entity_t);
+ *new_entity = entity;
+ } else {
+ ecs_os_warn("no server found for endpoint '%s'", ep->url);
+ }
+ }
+}
+
+void FlecsSystemsCivetwebImport(
+ ecs_world_t *world)
+{
+ ECS_IMPORT(world, FlecsComponentsHttp);
+
+ ecs_set_name_prefix(world, "EcsCivet");
+
+ ECS_MODULE(world, FlecsSystemsCivetweb);
+
+ ECS_COMPONENT(world, EcsCivetServer);
+
+ ECS_SYSTEM(world, CivetSet, EcsOnSet,
+ flecs.components.http.Server,
+ ?Server,
+ SYSTEM:Hidden);
+
+ ECS_SYSTEM(world, CivetUnset, EcsUnSet,
+ Server,
+ SYSTEM:Hidden);
+
+ ECS_SYSTEM(world, CivetRegisterEndpoint, EcsOnSet,
+ flecs.components.http.Endpoint,
+ :Server,
+ SYSTEM:Hidden);
+
+ ECS_TRIGGER(world, CivetDeinit, EcsOnRemove, Server);
+
+ ecs_enable_locking(world, true);
+}
+/* Copyright (c) 2013-2018 the Civetweb developers
+ * Copyright (c) 2004-2013 Sergey Lyubka
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#if defined(__GNUC__) || defined(__MINGW32__)
+#define GCC_VERSION \
+ (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
+#if GCC_VERSION >= 40500
+/* gcc diagnostic pragmas available */
+#define GCC_DIAGNOSTIC
+#endif
+#endif
+
+#if defined(GCC_DIAGNOSTIC)
+/* Disable unused macros warnings - not all defines are required
+ * for all systems and all compilers. */
+#pragma GCC diagnostic ignored "-Wunused-macros"
+/* A padding warning is just plain useless */
+#pragma GCC diagnostic ignored "-Wpadded"
+#endif
+
+#if defined(__clang__) /* GCC does not (yet) support this pragma */
+/* We must set some flags for the headers we include. These flags
+ * are reserved ids according to C99, so we need to disable a
+ * warning for that. */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wreserved-id-macro"
+#endif
+
+#if defined(_WIN32)
+#if !defined(_CRT_SECURE_NO_WARNINGS)
+#define _CRT_SECURE_NO_WARNINGS /* Disable deprecation warning in VS2005 */
+#endif
+#if !defined(_WIN32_WINNT) /* defined for tdm-gcc so we can use getnameinfo */
+#define _WIN32_WINNT 0x0501
+#endif
+#else
+#if !defined(_GNU_SOURCE)
+#define _GNU_SOURCE /* for setgroups(), pthread_setname_np() */
+#endif
+#if defined(__linux__) && !defined(_XOPEN_SOURCE)
+#define _XOPEN_SOURCE 600 /* For flockfile() on Linux */
+#endif
+#if defined(__LSB_VERSION__)
+#define NEED_TIMEGM
+#define NO_THREAD_NAME
+#endif
+#if !defined(_LARGEFILE_SOURCE)
+#define _LARGEFILE_SOURCE /* For fseeko(), ftello() */
+#endif
+#if !defined(_FILE_OFFSET_BITS)
+#define _FILE_OFFSET_BITS 64 /* Use 64-bit file offsets by default */
+#endif
+#if !defined(__STDC_FORMAT_MACROS)
+#define __STDC_FORMAT_MACROS /* <inttypes.h> wants this for C++ */
+#endif
+#if !defined(__STDC_LIMIT_MACROS)
+#define __STDC_LIMIT_MACROS /* C++ wants that for INT64_MAX */
+#endif
+#if !defined(_DARWIN_UNLIMITED_SELECT)
+#define _DARWIN_UNLIMITED_SELECT
+#endif
+#if defined(__sun)
+#define __EXTENSIONS__ /* to expose flockfile and friends in stdio.h */
+#define __inline inline /* not recognized on older compiler versions */
+#endif
+#endif
+
+#if defined(__clang__)
+/* Enable reserved-id-macro warning again. */
+#pragma GCC diagnostic pop
+#endif
+
+
+#if defined(USE_LUA)
+#define USE_TIMERS
+#endif
+
+#if defined(_MSC_VER)
+/* 'type cast' : conversion from 'int' to 'HANDLE' of greater size */
+#pragma warning(disable : 4306)
+/* conditional expression is constant: introduced by FD_SET(..) */
+#pragma warning(disable : 4127)
+/* non-constant aggregate initializer: issued due to missing C99 support */
+#pragma warning(disable : 4204)
+/* padding added after data member */
+#pragma warning(disable : 4820)
+/* not defined as a preprocessor macro, replacing with '0' for '#if/#elif' */
+#pragma warning(disable : 4668)
+/* no function prototype given: converting '()' to '(void)' */
+#pragma warning(disable : 4255)
+/* function has been selected for automatic inline expansion */
+#pragma warning(disable : 4711)
+#endif
+
+
+/* This code uses static_assert to check some conditions.
+ * Unfortunately some compilers still do not support it, so we have a
+ * replacement function here. */
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ > 201100L
+#define mg_static_assert _Static_assert
+#elif defined(__cplusplus) && __cplusplus >= 201103L
+#define mg_static_assert static_assert
+#else
+char static_assert_replacement[1];
+#define mg_static_assert(cond, txt) \
+ extern char static_assert_replacement[(cond) ? 1 : -1]
+#endif
+
+mg_static_assert(sizeof(int) == 4 || sizeof(int) == 8,
+ "int data type size check");
+mg_static_assert(sizeof(void *) == 4 || sizeof(void *) == 8,
+ "pointer data type size check");
+mg_static_assert(sizeof(void *) >= sizeof(int), "data type size check");
+
+
+/* Alternative queue is well tested and should be the new default */
+#if defined(NO_ALTERNATIVE_QUEUE)
+#if defined(ALTERNATIVE_QUEUE)
+#error "Define ALTERNATIVE_QUEUE or NO_ALTERNATIVE_QUEUE or none, but not both"
+#endif
+#else
+#define ALTERNATIVE_QUEUE
+#endif
+
+
+/* DTL -- including winsock2.h works better if lean and mean */
+#if !defined(WIN32_LEAN_AND_MEAN)
+#define WIN32_LEAN_AND_MEAN
+#endif
+
+#if defined(__SYMBIAN32__)
+/* According to https://en.wikipedia.org/wiki/Symbian#History,
+ * Symbian is no longer maintained since 2014-01-01.
+ * Recent versions of CivetWeb are no longer tested for Symbian.
+ * It makes no sense, to support an abandoned operating system.
+ */
+#error "Symbian is no longer maintained. CivetWeb no longer supports Symbian."
+#define NO_SSL /* SSL is not supported */
+#define NO_CGI /* CGI is not supported */
+#define PATH_MAX FILENAME_MAX
+#endif /* __SYMBIAN32__ */
+
+
+#if !defined(CIVETWEB_HEADER_INCLUDED)
+/* Include the header file here, so the CivetWeb interface is defined for the
+ * entire implementation, including the following forward definitions. */
+#endif
+
+#if !defined(DEBUG_TRACE)
+#if defined(DEBUG)
+static void DEBUG_TRACE_FUNC(const char *func,
+ unsigned line,
+ PRINTF_FORMAT_STRING(const char *fmt),
+ ...) PRINTF_ARGS(3, 4);
+
+#define DEBUG_TRACE(fmt, ...) \
+ DEBUG_TRACE_FUNC(__func__, __LINE__, fmt, __VA_ARGS__)
+
+#define NEED_DEBUG_TRACE_FUNC
+
+#else
+#define DEBUG_TRACE(fmt, ...) \
+ do { \
+ } while (0)
+#endif /* DEBUG */
+#endif /* DEBUG_TRACE */
+
+
+#if !defined(DEBUG_ASSERT)
+#if defined(DEBUG)
+#define DEBUG_ASSERT(cond) \
+ do { \
+ if (!(cond)) { \
+ DEBUG_TRACE("ASSERTION FAILED: %s", #cond); \
+ exit(2); /* Exit with error */ \
+ } \
+ } while (0)
+#else
+#define DEBUG_ASSERT(cond)
+#endif /* DEBUG */
+#endif
+
+
+#if defined(__GNUC__) && defined(GCC_INSTRUMENTATION)
+void __cyg_profile_func_enter(void *this_fn, void *call_site)
+ __attribute__((no_instrument_function));
+
+void __cyg_profile_func_exit(void *this_fn, void *call_site)
+ __attribute__((no_instrument_function));
+
+void
+__cyg_profile_func_enter(void *this_fn, void *call_site)
+{
+ if ((void *)this_fn != (void *)printf) {
+ printf("E %p %p\n", this_fn, call_site);
+ }
+}
+
+void
+__cyg_profile_func_exit(void *this_fn, void *call_site)
+{
+ if ((void *)this_fn != (void *)printf) {
+ printf("X %p %p\n", this_fn, call_site);
+ }
+}
+#endif
+
+
+#if !defined(IGNORE_UNUSED_RESULT)
+#define IGNORE_UNUSED_RESULT(a) ((void)((a) && 1))
+#endif
+
+
+#if defined(__GNUC__) || defined(__MINGW32__)
+
+/* GCC unused function attribute seems fundamentally broken.
+ * Several attempts to tell the compiler "THIS FUNCTION MAY BE USED
+ * OR UNUSED" for individual functions failed.
+ * Either the compiler creates an "unused-function" warning if a
+ * function is not marked with __attribute__((unused)).
+ * On the other hand, if the function is marked with this attribute,
+ * but is used, the compiler raises a completely idiotic
+ * "used-but-marked-unused" warning - and
+ * #pragma GCC diagnostic ignored "-Wused-but-marked-unused"
+ * raises error: unknown option after "#pragma GCC diagnostic".
+ * Disable this warning completely, until the GCC guys sober up
+ * again.
+ */
+
+#pragma GCC diagnostic ignored "-Wunused-function"
+
+#define FUNCTION_MAY_BE_UNUSED /* __attribute__((unused)) */
+
+#else
+#define FUNCTION_MAY_BE_UNUSED
+#endif
+
+
+/* Some ANSI #includes are not available on Windows CE */
+#if !defined(_WIN32_WCE)
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#endif /* !_WIN32_WCE */
+
+
+#if defined(__clang__)
+/* When using -Weverything, clang does not accept it's own headers
+ * in a release build configuration. Disable what is too much in
+ * -Weverything. */
+#pragma clang diagnostic ignored "-Wdisabled-macro-expansion"
+#endif
+
+#if defined(__GNUC__) || defined(__MINGW32__)
+/* Who on earth came to the conclusion, using __DATE__ should rise
+ * an "expansion of date or time macro is not reproducible"
+ * warning. That's exactly what was intended by using this macro.
+ * Just disable this nonsense warning. */
+
+/* And disabling them does not work either:
+ * #pragma clang diagnostic ignored "-Wno-error=date-time"
+ * #pragma clang diagnostic ignored "-Wdate-time"
+ * So we just have to disable ALL warnings for some lines
+ * of code.
+ * This seems to be a known GCC bug, not resolved since 2012:
+ * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53431
+ */
+#endif
+
+
+#if defined(__MACH__) /* Apple OSX section */
+
+#if defined(__clang__)
+#if (__clang_major__ == 3) && ((__clang_minor__ == 7) || (__clang_minor__ == 8))
+/* Avoid warnings for Xcode 7. It seems it does no longer exist in Xcode 8 */
+#pragma clang diagnostic ignored "-Wno-reserved-id-macro"
+#pragma clang diagnostic ignored "-Wno-keyword-macro"
+#endif
+#endif
+
+#define CLOCK_MONOTONIC (1)
+#define CLOCK_REALTIME (2)
+
+#include <mach/clock.h>
+#include <mach/mach.h>
+#include <mach/mach_time.h>
+#include <sys/errno.h>
+#include <sys/time.h>
+
+/* clock_gettime is not implemented on OSX prior to 10.12 */
+static int
+_civet_clock_gettime(int clk_id, struct timespec *t)
+{
+ memset(t, 0, sizeof(*t));
+ if (clk_id == CLOCK_REALTIME) {
+ struct timeval now;
+ int rv = gettimeofday(&now, NULL);
+ if (rv) {
+ return rv;
+ }
+ t->tv_sec = now.tv_sec;
+ t->tv_nsec = now.tv_usec * 1000;
+ return 0;
+
+ } else if (clk_id == CLOCK_MONOTONIC) {
+ static uint64_t clock_start_time = 0;
+ static mach_timebase_info_data_t timebase_ifo = {0, 0};
+
+ uint64_t now = mach_absolute_time();
+
+ if (clock_start_time == 0) {
+ kern_return_t mach_status = mach_timebase_info(&timebase_ifo);
+ DEBUG_ASSERT(mach_status == KERN_SUCCESS);
+
+ /* appease "unused variable" warning for release builds */
+ (void)mach_status;
+
+ clock_start_time = now;
+ }
+
+ now = (uint64_t)((double)(now - clock_start_time)
+ * (double)timebase_ifo.numer
+ / (double)timebase_ifo.denom);
+
+ t->tv_sec = now / 1000000000;
+ t->tv_nsec = now % 1000000000;
+ return 0;
+ }
+ return -1; /* EINVAL - Clock ID is unknown */
+}
+
+#ifdef __MACH__
+#include <time.h>
+#endif
+
+/* if clock_gettime is declared, then __CLOCK_AVAILABILITY will be defined */
+#if defined(__CLOCK_AVAILABILITY)
+/* If we compiled with Mac OSX 10.12 or later, then clock_gettime will be
+ * declared but it may be NULL at runtime. So we need to check before using
+ * it. */
+static int
+_civet_safe_clock_gettime(int clk_id, struct timespec *t)
+{
+ if (clock_gettime) {
+ return clock_gettime(clk_id, t);
+ }
+ return _civet_clock_gettime(clk_id, t);
+}
+#define clock_gettime _civet_safe_clock_gettime
+#else
+#define clock_gettime _civet_clock_gettime
+#endif
+
+#endif
+
+
+#include <ctype.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef __MACH__
+#include <time.h>
+#endif
+
+/********************************************************************/
+/* CivetWeb configuration defines */
+/********************************************************************/
+
+/* Maximum number of threads that can be configured.
+ * The number of threads actually created depends on the "num_threads"
+ * configuration parameter, but this is the upper limit. */
+#if !defined(MAX_WORKER_THREADS)
+#define MAX_WORKER_THREADS (1024 * 64) /* in threads (count) */
+#endif
+
+/* Timeout interval for select/poll calls.
+ * The timeouts depend on "*_timeout_ms" configuration values, but long
+ * timeouts are split into timouts as small as SOCKET_TIMEOUT_QUANTUM.
+ * This reduces the time required to stop the server. */
+#if !defined(SOCKET_TIMEOUT_QUANTUM)
+#define SOCKET_TIMEOUT_QUANTUM (2000) /* in ms */
+#endif
+
+/* Do not try to compress files smaller than this limit. */
+#if !defined(MG_FILE_COMPRESSION_SIZE_LIMIT)
+#define MG_FILE_COMPRESSION_SIZE_LIMIT (1024) /* in bytes */
+#endif
+
+#if !defined(PASSWORDS_FILE_NAME)
+#define PASSWORDS_FILE_NAME ".htpasswd"
+#endif
+
+/* Initial buffer size for all CGI environment variables. In case there is
+ * not enough space, another block is allocated. */
+#if !defined(CGI_ENVIRONMENT_SIZE)
+#define CGI_ENVIRONMENT_SIZE (4096) /* in bytes */
+#endif
+
+/* Maximum number of environment variables. */
+#if !defined(MAX_CGI_ENVIR_VARS)
+#define MAX_CGI_ENVIR_VARS (256) /* in variables (count) */
+#endif
+
+/* General purpose buffer size. */
+#if !defined(MG_BUF_LEN) /* in bytes */
+#define MG_BUF_LEN (1024 * 8)
+#endif
+
+/* Size of the accepted socket queue (in case the old queue implementation
+ * is used). */
+#if !defined(MGSQLEN)
+#define MGSQLEN (20) /* count */
+#endif
+
+
+/********************************************************************/
+
+/* Helper makros */
+#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))
+
+/* Standard defines */
+#if !defined(INT64_MAX)
+#define INT64_MAX (9223372036854775807)
+#endif
+
+#define SHUTDOWN_RD (0)
+#define SHUTDOWN_WR (1)
+#define SHUTDOWN_BOTH (2)
+
+mg_static_assert(MAX_WORKER_THREADS >= 1,
+ "worker threads must be a positive number");
+
+mg_static_assert(sizeof(size_t) == 4 || sizeof(size_t) == 8,
+ "size_t data type size check");
+
+#if defined(_WIN32) /* WINDOWS include block */
+#include <windows.h>
+#include <winsock2.h> /* DTL add for SO_EXCLUSIVE */
+#include <ws2tcpip.h>
+
+typedef const char *SOCK_OPT_TYPE;
+
+#if !defined(PATH_MAX)
+#define W_PATH_MAX (MAX_PATH)
+/* at most three UTF-8 chars per wchar_t */
+#define PATH_MAX (W_PATH_MAX * 3)
+#else
+#define W_PATH_MAX ((PATH_MAX + 2) / 3)
+#endif
+
+mg_static_assert(PATH_MAX >= 1, "path length must be a positive number");
+
+#if !defined(_IN_PORT_T)
+#if !defined(in_port_t)
+#define in_port_t u_short
+#endif
+#endif
+
+#if !defined(_WIN32_WCE)
+#include <direct.h>
+#include <io.h>
+#include <process.h>
+#else /* _WIN32_WCE */
+#define NO_CGI /* WinCE has no pipes */
+#define NO_POPEN /* WinCE has no popen */
+
+typedef long off_t;
+
+#define errno ((int)(GetLastError()))
+#define strerror(x) (_ultoa(x, (char *)_alloca(sizeof(x) * 3), 10))
+#endif /* _WIN32_WCE */
+
+#define MAKEUQUAD(lo, hi) \
+ ((uint64_t)(((uint32_t)(lo)) | ((uint64_t)((uint32_t)(hi))) << 32))
+#define RATE_DIFF (10000000) /* 100 nsecs */
+#define EPOCH_DIFF (MAKEUQUAD(0xd53e8000, 0x019db1de))
+#define SYS2UNIX_TIME(lo, hi) \
+ ((time_t)((MAKEUQUAD((lo), (hi)) - EPOCH_DIFF) / RATE_DIFF))
+
+/* Visual Studio 6 does not know __func__ or __FUNCTION__
+ * The rest of MS compilers use __FUNCTION__, not C99 __func__
+ * Also use _strtoui64 on modern M$ compilers */
+#if defined(_MSC_VER)
+#if (_MSC_VER < 1300)
+#define STRX(x) #x
+#define STR(x) STRX(x)
+#define __func__ __FILE__ ":" STR(__LINE__)
+#define strtoull(x, y, z) ((unsigned __int64)_atoi64(x))
+#define strtoll(x, y, z) (_atoi64(x))
+#else
+#define __func__ __FUNCTION__
+#define strtoull(x, y, z) (_strtoui64(x, y, z))
+#define strtoll(x, y, z) (_strtoi64(x, y, z))
+#endif
+#endif /* _MSC_VER */
+
+#define ERRNO ((int)(GetLastError()))
+#define NO_SOCKLEN_T
+
+#if defined(_WIN64) || defined(__MINGW64__)
+#if !defined(SSL_LIB)
+#define SSL_LIB "ssleay64.dll"
+#endif
+#if !defined(CRYPTO_LIB)
+#define CRYPTO_LIB "libeay64.dll"
+#endif
+#else
+#if !defined(SSL_LIB)
+#define SSL_LIB "ssleay32.dll"
+#endif
+#if !defined(CRYPTO_LIB)
+#define CRYPTO_LIB "libeay32.dll"
+#endif
+#endif
+
+#define O_NONBLOCK (0)
+#if !defined(W_OK)
+#define W_OK (2) /* http://msdn.microsoft.com/en-us/library/1w06ktdy.aspx */
+#endif
+#define _POSIX_
+#define INT64_FMT "I64d"
+#define UINT64_FMT "I64u"
+
+#define WINCDECL __cdecl
+#define vsnprintf_impl _vsnprintf
+#define access _access
+#define mg_sleep(x) (Sleep(x))
+
+#define pipe(x) _pipe(x, MG_BUF_LEN, _O_BINARY)
+#if !defined(popen)
+#define popen(x, y) (_popen(x, y))
+#endif
+#if !defined(pclose)
+#define pclose(x) (_pclose(x))
+#endif
+#define close(x) (_close(x))
+#define dlsym(x, y) (GetProcAddress((HINSTANCE)(x), (y)))
+#define RTLD_LAZY (0)
+#define fseeko(x, y, z) ((_lseeki64(_fileno(x), (y), (z)) == -1) ? -1 : 0)
+#define fdopen(x, y) (_fdopen((x), (y)))
+#define write(x, y, z) (_write((x), (y), (unsigned)z))
+#define read(x, y, z) (_read((x), (y), (unsigned)z))
+#define flockfile(x) ((void)pthread_mutex_lock(&global_log_file_lock))
+#define funlockfile(x) ((void)pthread_mutex_unlock(&global_log_file_lock))
+#define sleep(x) (Sleep((x)*1000))
+#define rmdir(x) (_rmdir(x))
+#if defined(_WIN64) || !defined(__MINGW32__)
+/* Only MinGW 32 bit is missing this function */
+#define timegm(x) (_mkgmtime(x))
+#else
+time_t timegm(struct tm *tm);
+#define NEED_TIMEGM
+#endif
+
+
+#if !defined(fileno)
+#define fileno(x) (_fileno(x))
+#endif /* !fileno MINGW #defines fileno */
+
+typedef struct {
+ CRITICAL_SECTION sec; /* Immovable */
+} pthread_mutex_t;
+typedef DWORD pthread_key_t;
+typedef HANDLE pthread_t;
+typedef struct {
+ pthread_mutex_t threadIdSec;
+ struct mg_workerTLS *waiting_thread; /* The chain of threads */
+} pthread_cond_t;
+
+#if !defined(__clockid_t_defined)
+typedef DWORD clockid_t;
+#endif
+#if !defined(CLOCK_MONOTONIC)
+#define CLOCK_MONOTONIC (1)
+#endif
+#if !defined(CLOCK_REALTIME)
+#define CLOCK_REALTIME (2)
+#endif
+#if !defined(CLOCK_THREAD)
+#define CLOCK_THREAD (3)
+#endif
+#if !defined(CLOCK_PROCESS)
+#define CLOCK_PROCESS (4)
+#endif
+
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1900)
+#define _TIMESPEC_DEFINED
+#endif
+#if !defined(_TIMESPEC_DEFINED)
+struct timespec {
+ time_t tv_sec; /* seconds */
+ long tv_nsec; /* nanoseconds */
+};
+#endif
+
+#if !defined(WIN_PTHREADS_TIME_H)
+#define MUST_IMPLEMENT_CLOCK_GETTIME
+#endif
+
+#if defined(MUST_IMPLEMENT_CLOCK_GETTIME)
+#define clock_gettime mg_clock_gettime
+static int
+clock_gettime(clockid_t clk_id, struct timespec *tp)
+{
+ FILETIME ft;
+ ULARGE_INTEGER li, li2;
+ BOOL ok = FALSE;
+ double d;
+ static double perfcnt_per_sec = 0.0;
+ static BOOL initialized = FALSE;
+
+ if (!initialized) {
+ QueryPerformanceFrequency((LARGE_INTEGER *)&li);
+ perfcnt_per_sec = 1.0 / li.QuadPart;
+ initialized = TRUE;
+ }
+
+ if (tp) {
+ memset(tp, 0, sizeof(*tp));
+
+ if (clk_id == CLOCK_REALTIME) {
+
+ /* BEGIN: CLOCK_REALTIME = wall clock (date and time) */
+ GetSystemTimeAsFileTime(&ft);
+ li.LowPart = ft.dwLowDateTime;
+ li.HighPart = ft.dwHighDateTime;
+ li.QuadPart -= 116444736000000000; /* 1.1.1970 in filedate */
+ tp->tv_sec = (time_t)(li.QuadPart / 10000000);
+ tp->tv_nsec = (long)(li.QuadPart % 10000000) * 100;
+ ok = TRUE;
+ /* END: CLOCK_REALTIME */
+
+ } else if (clk_id == CLOCK_MONOTONIC) {
+
+ /* BEGIN: CLOCK_MONOTONIC = stopwatch (time differences) */
+ QueryPerformanceCounter((LARGE_INTEGER *)&li);
+ d = li.QuadPart * perfcnt_per_sec;
+ tp->tv_sec = (time_t)d;
+ d -= (double)tp->tv_sec;
+ tp->tv_nsec = (long)(d * 1.0E9);
+ ok = TRUE;
+ /* END: CLOCK_MONOTONIC */
+
+ } else if (clk_id == CLOCK_THREAD) {
+
+ /* BEGIN: CLOCK_THREAD = CPU usage of thread */
+ FILETIME t_create, t_exit, t_kernel, t_user;
+ if (GetThreadTimes(GetCurrentThread(),
+ &t_create,
+ &t_exit,
+ &t_kernel,
+ &t_user)) {
+ li.LowPart = t_user.dwLowDateTime;
+ li.HighPart = t_user.dwHighDateTime;
+ li2.LowPart = t_kernel.dwLowDateTime;
+ li2.HighPart = t_kernel.dwHighDateTime;
+ li.QuadPart += li2.QuadPart;
+ tp->tv_sec = (time_t)(li.QuadPart / 10000000);
+ tp->tv_nsec = (long)(li.QuadPart % 10000000) * 100;
+ ok = TRUE;
+ }
+ /* END: CLOCK_THREAD */
+
+ } else if (clk_id == CLOCK_PROCESS) {
+
+ /* BEGIN: CLOCK_PROCESS = CPU usage of process */
+ FILETIME t_create, t_exit, t_kernel, t_user;
+ if (GetProcessTimes(GetCurrentProcess(),
+ &t_create,
+ &t_exit,
+ &t_kernel,
+ &t_user)) {
+ li.LowPart = t_user.dwLowDateTime;
+ li.HighPart = t_user.dwHighDateTime;
+ li2.LowPart = t_kernel.dwLowDateTime;
+ li2.HighPart = t_kernel.dwHighDateTime;
+ li.QuadPart += li2.QuadPart;
+ tp->tv_sec = (time_t)(li.QuadPart / 10000000);
+ tp->tv_nsec = (long)(li.QuadPart % 10000000) * 100;
+ ok = TRUE;
+ }
+ /* END: CLOCK_PROCESS */
+
+ } else {
+
+ /* BEGIN: unknown clock */
+ /* ok = FALSE; already set by init */
+ /* END: unknown clock */
+ }
+ }
+
+ return ok ? 0 : -1;
+}
+#endif
+
+
+#define pid_t HANDLE /* MINGW typedefs pid_t to int. Using #define here. */
+
+static int pthread_mutex_lock(pthread_mutex_t *);
+static int pthread_mutex_unlock(pthread_mutex_t *);
+static void path_to_unicode(const struct mg_connection *conn,
+ const char *path,
+ wchar_t *wbuf,
+ size_t wbuf_len);
+
+/* All file operations need to be rewritten to solve #246. */
+
+struct mg_file;
+
+static const char *
+mg_fgets(char *buf, size_t size, struct mg_file *filep, char **p);
+
+
+/* POSIX dirent interface */
+struct dirent {
+ char d_name[PATH_MAX];
+};
+
+typedef struct DIR {
+ HANDLE handle;
+ WIN32_FIND_DATAW info;
+ struct dirent result;
+} DIR;
+
+#if defined(HAVE_POLL)
+#define mg_pollfd pollfd
+#else
+struct mg_pollfd {
+ SOCKET fd;
+ short events;
+ short revents;
+};
+#endif
+
+/* Mark required libraries */
+#if defined(_MSC_VER)
+#pragma comment(lib, "Ws2_32.lib")
+#endif
+
+#else /* defined(_WIN32) - WINDOWS vs UNIX include block */
+
+#include <arpa/inet.h>
+#include <inttypes.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <stdint.h>
+#include <sys/poll.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <sys/utsname.h>
+#include <sys/wait.h>
+typedef const void *SOCK_OPT_TYPE;
+
+#if defined(ANDROID)
+typedef unsigned short int in_port_t;
+#endif
+
+#include <dirent.h>
+#include <grp.h>
+#include <pwd.h>
+#include <unistd.h>
+#define vsnprintf_impl vsnprintf
+
+#if !defined(NO_SSL_DL) && !defined(NO_SSL)
+#include <dlfcn.h>
+#endif
+#include <pthread.h>
+#if defined(__MACH__)
+#define SSL_LIB "libssl.dylib"
+#define CRYPTO_LIB "libcrypto.dylib"
+#else
+#if !defined(SSL_LIB)
+#define SSL_LIB "libssl.so"
+#endif
+#if !defined(CRYPTO_LIB)
+#define CRYPTO_LIB "libcrypto.so"
+#endif
+#endif
+#if !defined(O_BINARY)
+#define O_BINARY (0)
+#endif /* O_BINARY */
+#define closesocket(a) (close(a))
+#define mg_mkdir(conn, path, mode) (mkdir(path, mode))
+#define mg_remove(conn, x) (remove(x))
+#define mg_sleep(x) (usleep((x)*1000))
+#define mg_opendir(conn, x) (opendir(x))
+#define mg_closedir(x) (closedir(x))
+#define mg_readdir(x) (readdir(x))
+#define ERRNO (errno)
+#define INVALID_SOCKET (-1)
+#define INT64_FMT PRId64
+#define UINT64_FMT PRIu64
+typedef int SOCKET;
+#define WINCDECL
+
+#if defined(__hpux)
+/* HPUX 11 does not have monotonic, fall back to realtime */
+#if !defined(CLOCK_MONOTONIC)
+#define CLOCK_MONOTONIC CLOCK_REALTIME
+#endif
+
+/* HPUX defines socklen_t incorrectly as size_t which is 64bit on
+ * Itanium. Without defining _XOPEN_SOURCE or _XOPEN_SOURCE_EXTENDED
+ * the prototypes use int* rather than socklen_t* which matches the
+ * actual library expectation. When called with the wrong size arg
+ * accept() returns a zero client inet addr and check_acl() always
+ * fails. Since socklen_t is widely used below, just force replace
+ * their typedef with int. - DTL
+ */
+#define socklen_t int
+#endif /* hpux */
+
+#define mg_pollfd pollfd
+
+#endif /* defined(_WIN32) - WINDOWS vs UNIX include block */
+
+/* Maximum queue length for pending connections. This value is passed as
+ * parameter to the "listen" socket call. */
+#if !defined(SOMAXCONN)
+/* This symbol may be defined in winsock2.h so this must after that include */
+#define SOMAXCONN (100) /* in pending connections (count) */
+#endif
+
+/* In case our C library is missing "timegm", provide an implementation */
+#if defined(NEED_TIMEGM)
+static inline int
+is_leap(int y)
+{
+ return (y % 4 == 0 && y % 100 != 0) || y % 400 == 0;
+}
+
+static inline int
+count_leap(int y)
+{
+ return (y - 1969) / 4 - (y - 1901) / 100 + (y - 1601) / 400;
+}
+
+time_t
+timegm(struct tm *tm)
+{
+ static const unsigned short ydays[] = {
+ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365};
+ int year = tm->tm_year + 1900;
+ int mon = tm->tm_mon;
+ int mday = tm->tm_mday - 1;
+ int hour = tm->tm_hour;
+ int min = tm->tm_min;
+ int sec = tm->tm_sec;
+
+ if (year < 1970 || mon < 0 || mon > 11 || mday < 0
+ || (mday >= ydays[mon + 1] - ydays[mon]
+ + (mon == 1 && is_leap(year) ? 1 : 0))
+ || hour < 0 || hour > 23 || min < 0 || min > 59 || sec < 0 || sec > 60)
+ return -1;
+
+ time_t res = year - 1970;
+ res *= 365;
+ res += mday;
+ res += ydays[mon] + (mon > 1 && is_leap(year) ? 1 : 0);
+ res += count_leap(year);
+
+ res *= 24;
+ res += hour;
+ res *= 60;
+ res += min;
+ res *= 60;
+ res += sec;
+ return res;
+}
+#endif /* NEED_TIMEGM */
+
+
+/* va_copy should always be a macro, C99 and C++11 - DTL */
+#if !defined(va_copy)
+#define va_copy(x, y) ((x) = (y))
+#endif
+
+
+#if defined(_WIN32)
+/* Create substitutes for POSIX functions in Win32. */
+
+#if defined(GCC_DIAGNOSTIC)
+/* Show no warning in case system functions are not used. */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+#endif
+
+
+static pthread_mutex_t global_log_file_lock;
+
+FUNCTION_MAY_BE_UNUSED
+static DWORD
+pthread_self(void)
+{
+ return GetCurrentThreadId();
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+pthread_key_create(
+ pthread_key_t *key,
+ void (*_ignored)(void *) /* destructor not supported for Windows */
+)
+{
+ (void)_ignored;
+
+ if ((key != 0)) {
+ *key = TlsAlloc();
+ return (*key != TLS_OUT_OF_INDEXES) ? 0 : -1;
+ }
+ return -2;
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+pthread_key_delete(pthread_key_t key)
+{
+ return TlsFree(key) ? 0 : 1;
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+pthread_setspecific(pthread_key_t key, void *value)
+{
+ return TlsSetValue(key, value) ? 0 : 1;
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static void *
+pthread_getspecific(pthread_key_t key)
+{
+ return TlsGetValue(key);
+}
+
+#if defined(GCC_DIAGNOSTIC)
+/* Enable unused function warning again */
+#pragma GCC diagnostic pop
+#endif
+
+static struct pthread_mutex_undefined_struct *pthread_mutex_attr = NULL;
+#else
+static pthread_mutexattr_t pthread_mutex_attr;
+#endif /* _WIN32 */
+
+
+#if defined(_WIN32_WCE)
+/* Create substitutes for POSIX functions in Win32. */
+
+#if defined(GCC_DIAGNOSTIC)
+/* Show no warning in case system functions are not used. */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+#endif
+
+
+FUNCTION_MAY_BE_UNUSED
+static time_t
+time(time_t *ptime)
+{
+ time_t t;
+ SYSTEMTIME st;
+ FILETIME ft;
+
+ GetSystemTime(&st);
+ SystemTimeToFileTime(&st, &ft);
+ t = SYS2UNIX_TIME(ft.dwLowDateTime, ft.dwHighDateTime);
+
+ if (ptime != NULL) {
+ *ptime = t;
+ }
+
+ return t;
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static struct tm *
+localtime_s(const time_t *ptime, struct tm *ptm)
+{
+ int64_t t = ((int64_t)*ptime) * RATE_DIFF + EPOCH_DIFF;
+ FILETIME ft, lft;
+ SYSTEMTIME st;
+ TIME_ZONE_INFORMATION tzinfo;
+
+ if (ptm == NULL) {
+ return NULL;
+ }
+
+ *(int64_t *)&ft = t;
+ FileTimeToLocalFileTime(&ft, &lft);
+ FileTimeToSystemTime(&lft, &st);
+ ptm->tm_year = st.wYear - 1900;
+ ptm->tm_mon = st.wMonth - 1;
+ ptm->tm_wday = st.wDayOfWeek;
+ ptm->tm_mday = st.wDay;
+ ptm->tm_hour = st.wHour;
+ ptm->tm_min = st.wMinute;
+ ptm->tm_sec = st.wSecond;
+ ptm->tm_yday = 0; /* hope nobody uses this */
+ ptm->tm_isdst =
+ (GetTimeZoneInformation(&tzinfo) == TIME_ZONE_ID_DAYLIGHT) ? 1 : 0;
+
+ return ptm;
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static struct tm *
+gmtime_s(const time_t *ptime, struct tm *ptm)
+{
+ /* FIXME(lsm): fix this. */
+ return localtime_s(ptime, ptm);
+}
+
+
+static int mg_atomic_inc(volatile int *addr);
+static struct tm tm_array[MAX_WORKER_THREADS];
+static int tm_index = 0;
+
+
+FUNCTION_MAY_BE_UNUSED
+static struct tm *
+localtime(const time_t *ptime)
+{
+ int i = mg_atomic_inc(&tm_index) % (sizeof(tm_array) / sizeof(tm_array[0]));
+ return localtime_s(ptime, tm_array + i);
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static struct tm *
+gmtime(const time_t *ptime)
+{
+ int i = mg_atomic_inc(&tm_index) % ARRAY_SIZE(tm_array);
+ return gmtime_s(ptime, tm_array + i);
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static size_t
+strftime(char *dst, size_t dst_size, const char *fmt, const struct tm *tm)
+{
+ /* TODO: (void)mg_snprintf(NULL, dst, dst_size, "implement strftime()
+ * for WinCE"); */
+ return 0;
+}
+
+#define _beginthreadex(psec, stack, func, prm, flags, ptid) \
+ (uintptr_t) CreateThread(psec, stack, func, prm, flags, ptid)
+
+#define remove(f) mg_remove(NULL, f)
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+rename(const char *a, const char *b)
+{
+ wchar_t wa[W_PATH_MAX];
+ wchar_t wb[W_PATH_MAX];
+ path_to_unicode(NULL, a, wa, ARRAY_SIZE(wa));
+ path_to_unicode(NULL, b, wb, ARRAY_SIZE(wb));
+
+ return MoveFileW(wa, wb) ? 0 : -1;
+}
+
+
+struct stat {
+ int64_t st_size;
+ time_t st_mtime;
+};
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+stat(const char *name, struct stat *st)
+{
+ wchar_t wbuf[W_PATH_MAX];
+ WIN32_FILE_ATTRIBUTE_DATA attr;
+ time_t creation_time, write_time;
+
+ path_to_unicode(NULL, name, wbuf, ARRAY_SIZE(wbuf));
+ memset(&attr, 0, sizeof(attr));
+
+ GetFileAttributesExW(wbuf, GetFileExInfoStandard, &attr);
+ st->st_size =
+ (((int64_t)attr.nFileSizeHigh) << 32) + (int64_t)attr.nFileSizeLow;
+
+ write_time = SYS2UNIX_TIME(attr.ftLastWriteTime.dwLowDateTime,
+ attr.ftLastWriteTime.dwHighDateTime);
+ creation_time = SYS2UNIX_TIME(attr.ftCreationTime.dwLowDateTime,
+ attr.ftCreationTime.dwHighDateTime);
+
+ if (creation_time > write_time) {
+ st->st_mtime = creation_time;
+ } else {
+ st->st_mtime = write_time;
+ }
+ return 0;
+}
+
+#define access(x, a) 1 /* not required anyway */
+
+/* WinCE-TODO: define stat, remove, rename, _rmdir, _lseeki64 */
+/* Values from errno.h in Windows SDK (Visual Studio). */
+#define EEXIST 17
+#define EACCES 13
+#define ENOENT 2
+
+#if defined(GCC_DIAGNOSTIC)
+/* Enable unused function warning again */
+#pragma GCC diagnostic pop
+#endif
+
+#endif /* defined(_WIN32_WCE) */
+
+
+#if defined(GCC_DIAGNOSTIC)
+/* Show no warning in case system functions are not used. */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+#endif /* defined(GCC_DIAGNOSTIC) */
+#if defined(__clang__)
+/* Show no warning in case system functions are not used. */
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunused-function"
+#endif
+
+static pthread_mutex_t global_lock_mutex;
+
+
+FUNCTION_MAY_BE_UNUSED
+static void
+mg_global_lock(void)
+{
+ (void)pthread_mutex_lock(&global_lock_mutex);
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static void
+mg_global_unlock(void)
+{
+ (void)pthread_mutex_unlock(&global_lock_mutex);
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+mg_atomic_inc(volatile int *addr)
+{
+ int ret;
+#if defined(_WIN32) && !defined(NO_ATOMICS)
+ /* Depending on the SDK, this function uses either
+ * (volatile unsigned int *) or (volatile LONG *),
+ * so whatever you use, the other SDK is likely to raise a warning. */
+ ret = InterlockedIncrement((volatile long *)addr);
+#elif defined(__GNUC__) \
+ && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 0))) \
+ && !defined(NO_ATOMICS)
+ ret = __sync_add_and_fetch(addr, 1);
+#else
+ mg_global_lock();
+ ret = (++(*addr));
+ mg_global_unlock();
+#endif
+ return ret;
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+mg_atomic_dec(volatile int *addr)
+{
+ int ret;
+#if defined(_WIN32) && !defined(NO_ATOMICS)
+ /* Depending on the SDK, this function uses either
+ * (volatile unsigned int *) or (volatile LONG *),
+ * so whatever you use, the other SDK is likely to raise a warning. */
+ ret = InterlockedDecrement((volatile long *)addr);
+#elif defined(__GNUC__) \
+ && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 0))) \
+ && !defined(NO_ATOMICS)
+ ret = __sync_sub_and_fetch(addr, 1);
+#else
+ mg_global_lock();
+ ret = (--(*addr));
+ mg_global_unlock();
+#endif
+ return ret;
+}
+
+
+#if defined(USE_SERVER_STATS)
+static int64_t
+mg_atomic_add(volatile int64_t *addr, int64_t value)
+{
+ int64_t ret;
+#if defined(_WIN64) && !defined(NO_ATOMICS)
+ ret = InterlockedAdd64(addr, value);
+#elif defined(__GNUC__) \
+ && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 0))) \
+ && !defined(NO_ATOMICS)
+ ret = __sync_add_and_fetch(addr, value);
+#else
+ mg_global_lock();
+ *addr += value;
+ ret = (*addr);
+ mg_global_unlock();
+#endif
+ return ret;
+}
+#endif
+
+
+#if defined(GCC_DIAGNOSTIC)
+/* Show no warning in case system functions are not used. */
+#pragma GCC diagnostic pop
+#endif /* defined(GCC_DIAGNOSTIC) */
+#if defined(__clang__)
+/* Show no warning in case system functions are not used. */
+#pragma clang diagnostic pop
+#endif
+
+
+#if defined(USE_SERVER_STATS)
+
+struct mg_memory_stat {
+ volatile int64_t totalMemUsed;
+ volatile int64_t maxMemUsed;
+ volatile int blockCount;
+};
+
+
+static struct mg_memory_stat *get_memory_stat(struct mg_context *ctx);
+
+
+static void *
+mg_malloc_ex(size_t size,
+ struct mg_context *ctx,
+ const char *file,
+ unsigned line)
+{
+ void *data = malloc(size + 2 * sizeof(uintptr_t));
+ void *memory = 0;
+ struct mg_memory_stat *mstat = get_memory_stat(ctx);
+
+#if defined(MEMORY_DEBUGGING)
+ char mallocStr[256];
+#else
+ (void)file;
+ (void)line;
+#endif
+
+ if (data) {
+ int64_t mmem = mg_atomic_add(&mstat->totalMemUsed, (int64_t)size);
+ if (mmem > mstat->maxMemUsed) {
+ /* could use atomic compare exchange, but this
+ * seems overkill for statistics data */
+ mstat->maxMemUsed = mmem;
+ }
+
+ mg_atomic_inc(&mstat->blockCount);
+ ((uintptr_t *)data)[0] = size;
+ ((uintptr_t *)data)[1] = (uintptr_t)mstat;
+ memory = (void *)(((char *)data) + 2 * sizeof(uintptr_t));
+ }
+
+#if defined(MEMORY_DEBUGGING)
+ sprintf(mallocStr,
+ "MEM: %p %5lu alloc %7lu %4lu --- %s:%u\n",
+ memory,
+ (unsigned long)size,
+ (unsigned long)mstat->totalMemUsed,
+ (unsigned long)mstat->blockCount,
+ file,
+ line);
+#if defined(_WIN32)
+ OutputDebugStringA(mallocStr);
+#else
+ DEBUG_TRACE("%s", mallocStr);
+#endif
+#endif
+
+ return memory;
+}
+
+
+static void *
+mg_calloc_ex(size_t count,
+ size_t size,
+ struct mg_context *ctx,
+ const char *file,
+ unsigned line)
+{
+ void *data = mg_malloc_ex(size * count, ctx, file, line);
+
+ if (data) {
+ memset(data, 0, size * count);
+ }
+ return data;
+}
+
+
+static void
+mg_free_ex(void *memory, const char *file, unsigned line)
+{
+ void *data = (void *)(((char *)memory) - 2 * sizeof(uintptr_t));
+
+
+#if defined(MEMORY_DEBUGGING)
+ char mallocStr[256];
+#else
+ (void)file;
+ (void)line;
+#endif
+
+ if (memory) {
+ uintptr_t size = ((uintptr_t *)data)[0];
+ struct mg_memory_stat *mstat =
+ (struct mg_memory_stat *)(((uintptr_t *)data)[1]);
+ mg_atomic_add(&mstat->totalMemUsed, -(int64_t)size);
+ mg_atomic_dec(&mstat->blockCount);
+#if defined(MEMORY_DEBUGGING)
+ sprintf(mallocStr,
+ "MEM: %p %5lu free %7lu %4lu --- %s:%u\n",
+ memory,
+ (unsigned long)size,
+ (unsigned long)mstat->totalMemUsed,
+ (unsigned long)mstat->blockCount,
+ file,
+ line);
+#if defined(_WIN32)
+ OutputDebugStringA(mallocStr);
+#else
+ DEBUG_TRACE("%s", mallocStr);
+#endif
+#endif
+ free(data);
+ }
+}
+
+
+static void *
+mg_realloc_ex(void *memory,
+ size_t newsize,
+ struct mg_context *ctx,
+ const char *file,
+ unsigned line)
+{
+ void *data;
+ void *_realloc;
+ uintptr_t oldsize;
+
+#if defined(MEMORY_DEBUGGING)
+ char mallocStr[256];
+#else
+ (void)file;
+ (void)line;
+#endif
+
+ if (newsize) {
+ if (memory) {
+ /* Reallocate existing block */
+ struct mg_memory_stat *mstat;
+ data = (void *)(((char *)memory) - 2 * sizeof(uintptr_t));
+ oldsize = ((uintptr_t *)data)[0];
+ mstat = (struct mg_memory_stat *)((uintptr_t *)data)[1];
+ _realloc = realloc(data, newsize + 2 * sizeof(uintptr_t));
+ if (_realloc) {
+ data = _realloc;
+ mg_atomic_add(&mstat->totalMemUsed, -(int64_t)oldsize);
+#if defined(MEMORY_DEBUGGING)
+ sprintf(mallocStr,
+ "MEM: %p %5lu r-free %7lu %4lu --- %s:%u\n",
+ memory,
+ (unsigned long)oldsize,
+ (unsigned long)mstat->totalMemUsed,
+ (unsigned long)mstat->blockCount,
+ file,
+ line);
+#if defined(_WIN32)
+ OutputDebugStringA(mallocStr);
+#else
+ DEBUG_TRACE("%s", mallocStr);
+#endif
+#endif
+ mg_atomic_add(&mstat->totalMemUsed, (int64_t)newsize);
+#if defined(MEMORY_DEBUGGING)
+ sprintf(mallocStr,
+ "MEM: %p %5lu r-alloc %7lu %4lu --- %s:%u\n",
+ memory,
+ (unsigned long)newsize,
+ (unsigned long)mstat->totalMemUsed,
+ (unsigned long)mstat->blockCount,
+ file,
+ line);
+#if defined(_WIN32)
+ OutputDebugStringA(mallocStr);
+#else
+ DEBUG_TRACE("%s", mallocStr);
+#endif
+#endif
+ *(uintptr_t *)data = newsize;
+ data = (void *)(((char *)data) + 2 * sizeof(uintptr_t));
+ } else {
+#if defined(MEMORY_DEBUGGING)
+#if defined(_WIN32)
+ OutputDebugStringA("MEM: realloc failed\n");
+#else
+ DEBUG_TRACE("%s", "MEM: realloc failed\n");
+#endif
+#endif
+ return _realloc;
+ }
+ } else {
+ /* Allocate new block */
+ data = mg_malloc_ex(newsize, ctx, file, line);
+ }
+ } else {
+ /* Free existing block */
+ data = 0;
+ mg_free_ex(memory, file, line);
+ }
+
+ return data;
+}
+
+#define mg_malloc(a) mg_malloc_ex(a, NULL, __FILE__, __LINE__)
+#define mg_calloc(a, b) mg_calloc_ex(a, b, NULL, __FILE__, __LINE__)
+#define mg_realloc(a, b) mg_realloc_ex(a, b, NULL, __FILE__, __LINE__)
+#define mg_free(a) mg_free_ex(a, __FILE__, __LINE__)
+
+#define mg_malloc_ctx(a, c) mg_malloc_ex(a, c, __FILE__, __LINE__)
+#define mg_calloc_ctx(a, b, c) mg_calloc_ex(a, b, c, __FILE__, __LINE__)
+#define mg_realloc_ctx(a, b, c) mg_realloc_ex(a, b, c, __FILE__, __LINE__)
+
+#else /* USE_SERVER_STATS */
+
+static __inline void *
+mg_malloc(size_t a)
+{
+ return malloc(a);
+}
+
+static __inline void *
+mg_calloc(size_t a, size_t b)
+{
+ return calloc(a, b);
+}
+
+static __inline void *
+mg_realloc(void *a, size_t b)
+{
+ return realloc(a, b);
+}
+
+static __inline void
+mg_free(void *a)
+{
+ free(a);
+}
+
+#define mg_malloc_ctx(a, c) mg_malloc(a)
+#define mg_calloc_ctx(a, b, c) mg_calloc(a, b)
+#define mg_realloc_ctx(a, b, c) mg_realloc(a, b)
+#define mg_free_ctx(a, c) mg_free(a)
+
+#endif /* USE_SERVER_STATS */
+
+
+static void mg_vsnprintf(const struct mg_connection *conn,
+ int *truncated,
+ char *buf,
+ size_t buflen,
+ const char *fmt,
+ va_list ap);
+
+static void mg_snprintf(const struct mg_connection *conn,
+ int *truncated,
+ char *buf,
+ size_t buflen,
+ PRINTF_FORMAT_STRING(const char *fmt),
+ ...) PRINTF_ARGS(5, 6);
+
+/* This following lines are just meant as a reminder to use the mg-functions
+ * for memory management */
+#if defined(malloc)
+#undef malloc
+#endif
+#if defined(calloc)
+#undef calloc
+#endif
+#if defined(realloc)
+#undef realloc
+#endif
+#if defined(free)
+#undef free
+#endif
+#if defined(snprintf)
+#undef snprintf
+#endif
+#if defined(vsnprintf)
+#undef vsnprintf
+#endif
+#define malloc DO_NOT_USE_THIS_FUNCTION__USE_mg_malloc
+#define calloc DO_NOT_USE_THIS_FUNCTION__USE_mg_calloc
+#define realloc DO_NOT_USE_THIS_FUNCTION__USE_mg_realloc
+#define free DO_NOT_USE_THIS_FUNCTION__USE_mg_free
+#define snprintf DO_NOT_USE_THIS_FUNCTION__USE_mg_snprintf
+#if defined(_WIN32)
+/* vsnprintf must not be used in any system,
+ * but this define only works well for Windows. */
+#define vsnprintf DO_NOT_USE_THIS_FUNCTION__USE_mg_vsnprintf
+#endif
+
+
+/* mg_init_library counter */
+static int mg_init_library_called = 0;
+
+#if !defined(NO_SSL)
+static int mg_ssl_initialized = 0;
+#endif
+
+static pthread_key_t sTlsKey; /* Thread local storage index */
+static int thread_idx_max = 0;
+
+#if defined(MG_LEGACY_INTERFACE)
+#define MG_ALLOW_USING_GET_REQUEST_INFO_FOR_RESPONSE
+#endif
+
+struct mg_workerTLS {
+ int is_master;
+ unsigned long thread_idx;
+ void *user_ptr;
+#if defined(_WIN32)
+ HANDLE pthread_cond_helper_mutex;
+ struct mg_workerTLS *next_waiting_thread;
+#endif
+#if defined(MG_ALLOW_USING_GET_REQUEST_INFO_FOR_RESPONSE)
+ char txtbuf[4];
+#endif
+};
+
+
+#if defined(GCC_DIAGNOSTIC)
+/* Show no warning in case system functions are not used. */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+#endif /* defined(GCC_DIAGNOSTIC) */
+#if defined(__clang__)
+/* Show no warning in case system functions are not used. */
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunused-function"
+#endif
+
+
+/* Get a unique thread ID as unsigned long, independent from the data type
+ * of thread IDs defined by the operating system API.
+ * If two calls to mg_current_thread_id return the same value, they calls
+ * are done from the same thread. If they return different values, they are
+ * done from different threads. (Provided this function is used in the same
+ * process context and threads are not repeatedly created and deleted, but
+ * CivetWeb does not do that).
+ * This function must match the signature required for SSL id callbacks:
+ * CRYPTO_set_id_callback
+ */
+FUNCTION_MAY_BE_UNUSED
+static unsigned long
+mg_current_thread_id(void)
+{
+#if defined(_WIN32)
+ return GetCurrentThreadId();
+#else
+
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunreachable-code"
+/* For every compiler, either "sizeof(pthread_t) > sizeof(unsigned long)"
+ * or not, so one of the two conditions will be unreachable by construction.
+ * Unfortunately the C standard does not define a way to check this at
+ * compile time, since the #if preprocessor conditions can not use the sizeof
+ * operator as an argument. */
+#endif
+
+ if (sizeof(pthread_t) > sizeof(unsigned long)) {
+ /* This is the problematic case for CRYPTO_set_id_callback:
+ * The OS pthread_t can not be cast to unsigned long. */
+ struct mg_workerTLS *tls =
+ (struct mg_workerTLS *)pthread_getspecific(sTlsKey);
+ if (tls == NULL) {
+ /* SSL called from an unknown thread: Create some thread index.
+ */
+ tls = (struct mg_workerTLS *)mg_malloc(sizeof(struct mg_workerTLS));
+ tls->is_master = -2; /* -2 means "3rd party thread" */
+ tls->thread_idx = (unsigned)mg_atomic_inc(&thread_idx_max);
+ pthread_setspecific(sTlsKey, tls);
+ }
+ return tls->thread_idx;
+ } else {
+ /* pthread_t may be any data type, so a simple cast to unsigned long
+ * can rise a warning/error, depending on the platform.
+ * Here memcpy is used as an anything-to-anything cast. */
+ unsigned long ret = 0;
+ pthread_t t = pthread_self();
+ memcpy(&ret, &t, sizeof(pthread_t));
+ return ret;
+ }
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
+#endif
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static uint64_t
+mg_get_current_time_ns(void)
+{
+ struct timespec tsnow;
+ clock_gettime(CLOCK_REALTIME, &tsnow);
+ return (((uint64_t)tsnow.tv_sec) * 1000000000) + (uint64_t)tsnow.tv_nsec;
+}
+
+
+#if defined(GCC_DIAGNOSTIC)
+/* Show no warning in case system functions are not used. */
+#pragma GCC diagnostic pop
+#endif /* defined(GCC_DIAGNOSTIC) */
+#if defined(__clang__)
+/* Show no warning in case system functions are not used. */
+#pragma clang diagnostic pop
+#endif
+
+
+#if defined(NEED_DEBUG_TRACE_FUNC)
+static void
+DEBUG_TRACE_FUNC(const char *func, unsigned line, const char *fmt, ...)
+{
+ va_list args;
+ uint64_t nsnow;
+ static uint64_t nslast;
+ struct timespec tsnow;
+
+ /* Get some operating system independent thread id */
+ unsigned long thread_id = mg_current_thread_id();
+
+ clock_gettime(CLOCK_REALTIME, &tsnow);
+ nsnow = ((uint64_t)tsnow.tv_sec) * ((uint64_t)1000000000)
+ + ((uint64_t)tsnow.tv_nsec);
+
+ if (!nslast) {
+ nslast = nsnow;
+ }
+
+ flockfile(stdout);
+ printf("*** %lu.%09lu %12" INT64_FMT " %lu %s:%u: ",
+ (unsigned long)tsnow.tv_sec,
+ (unsigned long)tsnow.tv_nsec,
+ nsnow - nslast,
+ thread_id,
+ func,
+ line);
+ va_start(args, fmt);
+ vprintf(fmt, args);
+ va_end(args);
+ putchar('\n');
+ fflush(stdout);
+ funlockfile(stdout);
+ nslast = nsnow;
+}
+#endif /* NEED_DEBUG_TRACE_FUNC */
+
+
+#define MD5_STATIC static
+/*
+ * This an amalgamation of md5.c and md5.h into a single file
+ * with all static declaration to reduce linker conflicts
+ * in Civetweb.
+ *
+ * The MD5_STATIC declaration was added to facilitate static
+ * inclusion.
+ * No Face Press, LLC
+ */
+
+/* $Id: md5.h,v 1.4 2002/04/13 19:20:28 lpd Exp $ */
+/*
+ Independent implementation of MD5 (RFC 1321).
+
+ This code implements the MD5 Algorithm defined in RFC 1321, whose
+ text is available at
+ http://www.ietf.org/rfc/rfc1321.txt
+ The code is derived from the text of the RFC, including the test suite
+ (section A.5) but excluding the rest of Appendix A. It does not include
+ any code or documentation that is identified in the RFC as being
+ copyrighted.
+
+ The original and principal author of md5.h is L. Peter Deutsch
+ <ghost@aladdin.com>. Other authors are noted in the change history
+ that follows (in reverse chronological order):
+
+ 2002-04-13 lpd Removed support for non-ANSI compilers; removed
+ references to Ghostscript; clarified derivation from RFC 1321;
+ now handles byte order either statically or dynamically.
+ 1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
+ 1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
+ added conditionalization for C++ compilation from Martin
+ Purschke <purschke@bnl.gov>.
+ 1999-05-03 lpd Original version.
+ */
+
+#if !defined(md5_INCLUDED)
+#define md5_INCLUDED
+
+/*
+ * This package supports both compile-time and run-time determination of CPU
+ * byte order. If ARCH_IS_BIG_ENDIAN is defined as 0, the code will be
+ * compiled to run only on little-endian CPUs; if ARCH_IS_BIG_ENDIAN is
+ * defined as non-zero, the code will be compiled to run only on big-endian
+ * CPUs; if ARCH_IS_BIG_ENDIAN is not defined, the code will be compiled to
+ * run on either big- or little-endian CPUs, but will run slightly less
+ * efficiently on either one than if ARCH_IS_BIG_ENDIAN is defined.
+ */
+
+typedef unsigned char md5_byte_t; /* 8-bit byte */
+typedef unsigned int md5_word_t; /* 32-bit word */
+
+/* Define the state of the MD5 Algorithm. */
+typedef struct md5_state_s {
+ md5_word_t count[2]; /* message length in bits, lsw first */
+ md5_word_t abcd[4]; /* digest buffer */
+ md5_byte_t buf[64]; /* accumulate block */
+} md5_state_t;
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+/* Initialize the algorithm. */
+MD5_STATIC void md5_init(md5_state_t *pms);
+
+/* Append a string to the message. */
+MD5_STATIC void
+md5_append(md5_state_t *pms, const md5_byte_t *data, size_t nbytes);
+
+/* Finish the message and return the digest. */
+MD5_STATIC void md5_finish(md5_state_t *pms, md5_byte_t digest[16]);
+
+#if defined(__cplusplus)
+} /* end extern "C" */
+#endif
+
+#endif /* md5_INCLUDED */
+
+/*
+ Copyright (C) 1999, 2000, 2002 Aladdin Enterprises. All rights reserved.
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+
+ L. Peter Deutsch
+ ghost@aladdin.com
+
+ */
+/* $Id: md5.c,v 1.6 2002/04/13 19:20:28 lpd Exp $ */
+/*
+ Independent implementation of MD5 (RFC 1321).
+
+ This code implements the MD5 Algorithm defined in RFC 1321, whose
+ text is available at
+ http://www.ietf.org/rfc/rfc1321.txt
+ The code is derived from the text of the RFC, including the test suite
+ (section A.5) but excluding the rest of Appendix A. It does not include
+ any code or documentation that is identified in the RFC as being
+ copyrighted.
+
+ The original and principal author of md5.c is L. Peter Deutsch
+ <ghost@aladdin.com>. Other authors are noted in the change history
+ that follows (in reverse chronological order):
+
+ 2002-04-13 lpd Clarified derivation from RFC 1321; now handles byte order
+ either statically or dynamically; added missing #include <string.h>
+ in library.
+ 2002-03-11 lpd Corrected argument list for main(), and added int return
+ type, in test program and T value program.
+ 2002-02-21 lpd Added missing #include <stdio.h> in test program.
+ 2000-07-03 lpd Patched to eliminate warnings about "constant is
+ unsigned in ANSI C, signed in traditional"; made test program
+ self-checking.
+ 1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
+ 1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5).
+ 1999-05-03 lpd Original version.
+ */
+
+#if !defined(MD5_STATIC)
+#include <string.h>
+#endif
+
+#undef BYTE_ORDER /* 1 = big-endian, -1 = little-endian, 0 = unknown */
+#if defined(ARCH_IS_BIG_ENDIAN)
+#define BYTE_ORDER (ARCH_IS_BIG_ENDIAN ? 1 : -1)
+#else
+#define BYTE_ORDER (0)
+#endif
+
+#define T_MASK ((md5_word_t)~0)
+#define T1 /* 0xd76aa478 */ (T_MASK ^ 0x28955b87)
+#define T2 /* 0xe8c7b756 */ (T_MASK ^ 0x173848a9)
+#define T3 (0x242070db)
+#define T4 /* 0xc1bdceee */ (T_MASK ^ 0x3e423111)
+#define T5 /* 0xf57c0faf */ (T_MASK ^ 0x0a83f050)
+#define T6 (0x4787c62a)
+#define T7 /* 0xa8304613 */ (T_MASK ^ 0x57cfb9ec)
+#define T8 /* 0xfd469501 */ (T_MASK ^ 0x02b96afe)
+#define T9 (0x698098d8)
+#define T10 /* 0x8b44f7af */ (T_MASK ^ 0x74bb0850)
+#define T11 /* 0xffff5bb1 */ (T_MASK ^ 0x0000a44e)
+#define T12 /* 0x895cd7be */ (T_MASK ^ 0x76a32841)
+#define T13 (0x6b901122)
+#define T14 /* 0xfd987193 */ (T_MASK ^ 0x02678e6c)
+#define T15 /* 0xa679438e */ (T_MASK ^ 0x5986bc71)
+#define T16 (0x49b40821)
+#define T17 /* 0xf61e2562 */ (T_MASK ^ 0x09e1da9d)
+#define T18 /* 0xc040b340 */ (T_MASK ^ 0x3fbf4cbf)
+#define T19 (0x265e5a51)
+#define T20 /* 0xe9b6c7aa */ (T_MASK ^ 0x16493855)
+#define T21 /* 0xd62f105d */ (T_MASK ^ 0x29d0efa2)
+#define T22 (0x02441453)
+#define T23 /* 0xd8a1e681 */ (T_MASK ^ 0x275e197e)
+#define T24 /* 0xe7d3fbc8 */ (T_MASK ^ 0x182c0437)
+#define T25 (0x21e1cde6)
+#define T26 /* 0xc33707d6 */ (T_MASK ^ 0x3cc8f829)
+#define T27 /* 0xf4d50d87 */ (T_MASK ^ 0x0b2af278)
+#define T28 (0x455a14ed)
+#define T29 /* 0xa9e3e905 */ (T_MASK ^ 0x561c16fa)
+#define T30 /* 0xfcefa3f8 */ (T_MASK ^ 0x03105c07)
+#define T31 (0x676f02d9)
+#define T32 /* 0x8d2a4c8a */ (T_MASK ^ 0x72d5b375)
+#define T33 /* 0xfffa3942 */ (T_MASK ^ 0x0005c6bd)
+#define T34 /* 0x8771f681 */ (T_MASK ^ 0x788e097e)
+#define T35 (0x6d9d6122)
+#define T36 /* 0xfde5380c */ (T_MASK ^ 0x021ac7f3)
+#define T37 /* 0xa4beea44 */ (T_MASK ^ 0x5b4115bb)
+#define T38 (0x4bdecfa9)
+#define T39 /* 0xf6bb4b60 */ (T_MASK ^ 0x0944b49f)
+#define T40 /* 0xbebfbc70 */ (T_MASK ^ 0x4140438f)
+#define T41 (0x289b7ec6)
+#define T42 /* 0xeaa127fa */ (T_MASK ^ 0x155ed805)
+#define T43 /* 0xd4ef3085 */ (T_MASK ^ 0x2b10cf7a)
+#define T44 (0x04881d05)
+#define T45 /* 0xd9d4d039 */ (T_MASK ^ 0x262b2fc6)
+#define T46 /* 0xe6db99e5 */ (T_MASK ^ 0x1924661a)
+#define T47 (0x1fa27cf8)
+#define T48 /* 0xc4ac5665 */ (T_MASK ^ 0x3b53a99a)
+#define T49 /* 0xf4292244 */ (T_MASK ^ 0x0bd6ddbb)
+#define T50 (0x432aff97)
+#define T51 /* 0xab9423a7 */ (T_MASK ^ 0x546bdc58)
+#define T52 /* 0xfc93a039 */ (T_MASK ^ 0x036c5fc6)
+#define T53 (0x655b59c3)
+#define T54 /* 0x8f0ccc92 */ (T_MASK ^ 0x70f3336d)
+#define T55 /* 0xffeff47d */ (T_MASK ^ 0x00100b82)
+#define T56 /* 0x85845dd1 */ (T_MASK ^ 0x7a7ba22e)
+#define T57 (0x6fa87e4f)
+#define T58 /* 0xfe2ce6e0 */ (T_MASK ^ 0x01d3191f)
+#define T59 /* 0xa3014314 */ (T_MASK ^ 0x5cfebceb)
+#define T60 (0x4e0811a1)
+#define T61 /* 0xf7537e82 */ (T_MASK ^ 0x08ac817d)
+#define T62 /* 0xbd3af235 */ (T_MASK ^ 0x42c50dca)
+#define T63 (0x2ad7d2bb)
+#define T64 /* 0xeb86d391 */ (T_MASK ^ 0x14792c6e)
+
+static void
+md5_process(md5_state_t *pms, const md5_byte_t *data /*[64]*/)
+{
+ md5_word_t a = pms->abcd[0], b = pms->abcd[1], c = pms->abcd[2],
+ d = pms->abcd[3];
+ md5_word_t t;
+#if BYTE_ORDER > 0
+ /* Define storage only for big-endian CPUs. */
+ md5_word_t X[16];
+#else
+ /* Define storage for little-endian or both types of CPUs. */
+ md5_word_t xbuf[16];
+ const md5_word_t *X;
+#endif
+
+ {
+#if BYTE_ORDER == 0
+ /*
+ * Determine dynamically whether this is a big-endian or
+ * little-endian machine, since we can use a more efficient
+ * algorithm on the latter.
+ */
+ static const int w = 1;
+
+ if (*((const md5_byte_t *)&w)) /* dynamic little-endian */
+#endif
+#if BYTE_ORDER <= 0 /* little-endian */
+ {
+ /*
+ * On little-endian machines, we can process properly aligned
+ * data without copying it.
+ */
+ if (!((data - (const md5_byte_t *)0) & 3)) {
+ /* data are properly aligned, a direct assignment is possible */
+ /* cast through a (void *) should avoid a compiler warning,
+ see
+ https://github.com/bel2125/civetweb/issues/94#issuecomment-98112861
+ */
+ X = (const md5_word_t *)(const void *)data;
+ } else {
+ /* not aligned */
+ memcpy(xbuf, data, 64);
+ X = xbuf;
+ }
+ }
+#endif
+#if BYTE_ORDER == 0
+ else /* dynamic big-endian */
+#endif
+#if BYTE_ORDER >= 0 /* big-endian */
+ {
+ /*
+ * On big-endian machines, we must arrange the bytes in the
+ * right order.
+ */
+ const md5_byte_t *xp = data;
+ int i;
+
+#if BYTE_ORDER == 0
+ X = xbuf; /* (dynamic only) */
+#else
+#define xbuf X /* (static only) */
+#endif
+ for (i = 0; i < 16; ++i, xp += 4)
+ xbuf[i] = (md5_word_t)(xp[0]) + (md5_word_t)(xp[1] << 8)
+ + (md5_word_t)(xp[2] << 16)
+ + (md5_word_t)(xp[3] << 24);
+ }
+#endif
+ }
+
+#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
+
+/* Round 1. */
+/* Let [abcd k s i] denote the operation
+ a = b + ((a + F(b,c,d) + X[k] + T[i]) <<< s). */
+#define F(x, y, z) (((x) & (y)) | (~(x) & (z)))
+#define SET(a, b, c, d, k, s, Ti) \
+ t = a + F(b, c, d) + X[k] + Ti; \
+ a = ROTATE_LEFT(t, s) + b
+
+ /* Do the following 16 operations. */
+ SET(a, b, c, d, 0, 7, T1);
+ SET(d, a, b, c, 1, 12, T2);
+ SET(c, d, a, b, 2, 17, T3);
+ SET(b, c, d, a, 3, 22, T4);
+ SET(a, b, c, d, 4, 7, T5);
+ SET(d, a, b, c, 5, 12, T6);
+ SET(c, d, a, b, 6, 17, T7);
+ SET(b, c, d, a, 7, 22, T8);
+ SET(a, b, c, d, 8, 7, T9);
+ SET(d, a, b, c, 9, 12, T10);
+ SET(c, d, a, b, 10, 17, T11);
+ SET(b, c, d, a, 11, 22, T12);
+ SET(a, b, c, d, 12, 7, T13);
+ SET(d, a, b, c, 13, 12, T14);
+ SET(c, d, a, b, 14, 17, T15);
+ SET(b, c, d, a, 15, 22, T16);
+#undef SET
+
+/* Round 2. */
+/* Let [abcd k s i] denote the operation
+ a = b + ((a + G(b,c,d) + X[k] + T[i]) <<< s). */
+#define G(x, y, z) (((x) & (z)) | ((y) & ~(z)))
+#define SET(a, b, c, d, k, s, Ti) \
+ t = a + G(b, c, d) + X[k] + Ti; \
+ a = ROTATE_LEFT(t, s) + b
+
+ /* Do the following 16 operations. */
+ SET(a, b, c, d, 1, 5, T17);
+ SET(d, a, b, c, 6, 9, T18);
+ SET(c, d, a, b, 11, 14, T19);
+ SET(b, c, d, a, 0, 20, T20);
+ SET(a, b, c, d, 5, 5, T21);
+ SET(d, a, b, c, 10, 9, T22);
+ SET(c, d, a, b, 15, 14, T23);
+ SET(b, c, d, a, 4, 20, T24);
+ SET(a, b, c, d, 9, 5, T25);
+ SET(d, a, b, c, 14, 9, T26);
+ SET(c, d, a, b, 3, 14, T27);
+ SET(b, c, d, a, 8, 20, T28);
+ SET(a, b, c, d, 13, 5, T29);
+ SET(d, a, b, c, 2, 9, T30);
+ SET(c, d, a, b, 7, 14, T31);
+ SET(b, c, d, a, 12, 20, T32);
+#undef SET
+
+/* Round 3. */
+/* Let [abcd k s t] denote the operation
+ a = b + ((a + H(b,c,d) + X[k] + T[i]) <<< s). */
+#define H(x, y, z) ((x) ^ (y) ^ (z))
+#define SET(a, b, c, d, k, s, Ti) \
+ t = a + H(b, c, d) + X[k] + Ti; \
+ a = ROTATE_LEFT(t, s) + b
+
+ /* Do the following 16 operations. */
+ SET(a, b, c, d, 5, 4, T33);
+ SET(d, a, b, c, 8, 11, T34);
+ SET(c, d, a, b, 11, 16, T35);
+ SET(b, c, d, a, 14, 23, T36);
+ SET(a, b, c, d, 1, 4, T37);
+ SET(d, a, b, c, 4, 11, T38);
+ SET(c, d, a, b, 7, 16, T39);
+ SET(b, c, d, a, 10, 23, T40);
+ SET(a, b, c, d, 13, 4, T41);
+ SET(d, a, b, c, 0, 11, T42);
+ SET(c, d, a, b, 3, 16, T43);
+ SET(b, c, d, a, 6, 23, T44);
+ SET(a, b, c, d, 9, 4, T45);
+ SET(d, a, b, c, 12, 11, T46);
+ SET(c, d, a, b, 15, 16, T47);
+ SET(b, c, d, a, 2, 23, T48);
+#undef SET
+
+/* Round 4. */
+/* Let [abcd k s t] denote the operation
+ a = b + ((a + I(b,c,d) + X[k] + T[i]) <<< s). */
+#define I(x, y, z) ((y) ^ ((x) | ~(z)))
+#define SET(a, b, c, d, k, s, Ti) \
+ t = a + I(b, c, d) + X[k] + Ti; \
+ a = ROTATE_LEFT(t, s) + b
+
+ /* Do the following 16 operations. */
+ SET(a, b, c, d, 0, 6, T49);
+ SET(d, a, b, c, 7, 10, T50);
+ SET(c, d, a, b, 14, 15, T51);
+ SET(b, c, d, a, 5, 21, T52);
+ SET(a, b, c, d, 12, 6, T53);
+ SET(d, a, b, c, 3, 10, T54);
+ SET(c, d, a, b, 10, 15, T55);
+ SET(b, c, d, a, 1, 21, T56);
+ SET(a, b, c, d, 8, 6, T57);
+ SET(d, a, b, c, 15, 10, T58);
+ SET(c, d, a, b, 6, 15, T59);
+ SET(b, c, d, a, 13, 21, T60);
+ SET(a, b, c, d, 4, 6, T61);
+ SET(d, a, b, c, 11, 10, T62);
+ SET(c, d, a, b, 2, 15, T63);
+ SET(b, c, d, a, 9, 21, T64);
+#undef SET
+
+ /* Then perform the following additions. (That is increment each
+ of the four registers by the value it had before this block
+ was started.) */
+ pms->abcd[0] += a;
+ pms->abcd[1] += b;
+ pms->abcd[2] += c;
+ pms->abcd[3] += d;
+}
+
+MD5_STATIC void
+md5_init(md5_state_t *pms)
+{
+ pms->count[0] = pms->count[1] = 0;
+ pms->abcd[0] = 0x67452301;
+ pms->abcd[1] = /*0xefcdab89*/ T_MASK ^ 0x10325476;
+ pms->abcd[2] = /*0x98badcfe*/ T_MASK ^ 0x67452301;
+ pms->abcd[3] = 0x10325476;
+}
+
+MD5_STATIC void
+md5_append(md5_state_t *pms, const md5_byte_t *data, size_t nbytes)
+{
+ const md5_byte_t *p = data;
+ size_t left = nbytes;
+ size_t offset = (pms->count[0] >> 3) & 63;
+ md5_word_t nbits = (md5_word_t)(nbytes << 3);
+
+ if (nbytes <= 0)
+ return;
+
+ /* Update the message length. */
+ pms->count[1] += (md5_word_t)(nbytes >> 29);
+ pms->count[0] += nbits;
+ if (pms->count[0] < nbits)
+ pms->count[1]++;
+
+ /* Process an initial partial block. */
+ if (offset) {
+ size_t copy = (offset + nbytes > 64 ? 64 - offset : nbytes);
+
+ memcpy(pms->buf + offset, p, copy);
+ if (offset + copy < 64)
+ return;
+ p += copy;
+ left -= copy;
+ md5_process(pms, pms->buf);
+ }
+
+ /* Process full blocks. */
+ for (; left >= 64; p += 64, left -= 64)
+ md5_process(pms, p);
+
+ /* Process a final partial block. */
+ if (left)
+ memcpy(pms->buf, p, left);
+}
+
+MD5_STATIC void
+md5_finish(md5_state_t *pms, md5_byte_t digest[16])
+{
+ static const md5_byte_t pad[64] = {0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+ md5_byte_t data[8];
+ int i;
+
+ /* Save the length before padding. */
+ for (i = 0; i < 8; ++i)
+ data[i] = (md5_byte_t)(pms->count[i >> 2] >> ((i & 3) << 3));
+ /* Pad to 56 bytes mod 64. */
+ md5_append(pms, pad, ((55 - (pms->count[0] >> 3)) & 63) + 1);
+ /* Append the length. */
+ md5_append(pms, data, 8);
+ for (i = 0; i < 16; ++i)
+ digest[i] = (md5_byte_t)(pms->abcd[i >> 2] >> ((i & 3) << 3));
+}
+
+
+/* End of md5.inl */
+
+/* Darwin prior to 7.0 and Win32 do not have socklen_t */
+#if defined(NO_SOCKLEN_T)
+typedef int socklen_t;
+#endif /* NO_SOCKLEN_T */
+
+#define IP_ADDR_STR_LEN (50) /* IPv6 hex string is 46 chars */
+
+#if !defined(MSG_NOSIGNAL)
+#define MSG_NOSIGNAL (0)
+#endif
+
+
+#if defined(NO_SSL)
+typedef struct SSL SSL; /* dummy for SSL argument to push/pull */
+typedef struct SSL_CTX SSL_CTX;
+#else
+#if defined(NO_SSL_DL)
+#include <openssl/bn.h>
+#include <openssl/conf.h>
+#include <openssl/crypto.h>
+#include <openssl/dh.h>
+#include <openssl/engine.h>
+#include <openssl/err.h>
+#include <openssl/opensslv.h>
+#include <openssl/pem.h>
+#include <openssl/ssl.h>
+#include <openssl/tls1.h>
+#include <openssl/x509.h>
+
+#if defined(WOLFSSL_VERSION)
+/* Additional defines for WolfSSL, see
+ * https://github.com/civetweb/civetweb/issues/583 */
+#include "wolfssl_extras.inl"
+#endif
+
+#if (OPENSSL_VERSION_NUMBER >= 0x10100000L)
+/* If OpenSSL headers are included, automatically select the API version */
+#if !defined(OPENSSL_API_1_1)
+#define OPENSSL_API_1_1
+#endif
+#define OPENSSL_REMOVE_THREAD_STATE()
+#else
+#define OPENSSL_REMOVE_THREAD_STATE() ERR_remove_thread_state(NULL)
+#endif
+
+#else
+
+/* SSL loaded dynamically from DLL.
+ * I put the prototypes here to be independent from OpenSSL source
+ * installation. */
+
+typedef struct ssl_st SSL;
+typedef struct ssl_method_st SSL_METHOD;
+typedef struct ssl_ctx_st SSL_CTX;
+typedef struct x509_store_ctx_st X509_STORE_CTX;
+typedef struct x509_name X509_NAME;
+typedef struct asn1_integer ASN1_INTEGER;
+typedef struct bignum BIGNUM;
+typedef struct ossl_init_settings_st OPENSSL_INIT_SETTINGS;
+typedef struct evp_md EVP_MD;
+typedef struct x509 X509;
+
+
+#define SSL_CTRL_OPTIONS (32)
+#define SSL_CTRL_CLEAR_OPTIONS (77)
+#define SSL_CTRL_SET_ECDH_AUTO (94)
+
+#define OPENSSL_INIT_NO_LOAD_SSL_STRINGS 0x00100000L
+#define OPENSSL_INIT_LOAD_SSL_STRINGS 0x00200000L
+#define OPENSSL_INIT_LOAD_CRYPTO_STRINGS 0x00000002L
+
+#define SSL_VERIFY_NONE (0)
+#define SSL_VERIFY_PEER (1)
+#define SSL_VERIFY_FAIL_IF_NO_PEER_CERT (2)
+#define SSL_VERIFY_CLIENT_ONCE (4)
+
+#define SSL_OP_ALL (0x80000BFFul)
+
+#define SSL_OP_NO_SSLv2 (0x01000000ul)
+#define SSL_OP_NO_SSLv3 (0x02000000ul)
+#define SSL_OP_NO_TLSv1 (0x04000000ul)
+#define SSL_OP_NO_TLSv1_2 (0x08000000ul)
+#define SSL_OP_NO_TLSv1_1 (0x10000000ul)
+#define SSL_OP_NO_TLSv1_3 (0x20000000ul)
+#define SSL_OP_SINGLE_DH_USE (0x00100000ul)
+#define SSL_OP_CIPHER_SERVER_PREFERENCE (0x00400000ul)
+#define SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION (0x00010000ul)
+#define SSL_OP_NO_COMPRESSION (0x00020000ul)
+#define SSL_OP_NO_RENEGOTIATION (0x40000000ul)
+
+#define SSL_CB_HANDSHAKE_START (0x10)
+#define SSL_CB_HANDSHAKE_DONE (0x20)
+
+#define SSL_ERROR_NONE (0)
+#define SSL_ERROR_SSL (1)
+#define SSL_ERROR_WANT_READ (2)
+#define SSL_ERROR_WANT_WRITE (3)
+#define SSL_ERROR_WANT_X509_LOOKUP (4)
+#define SSL_ERROR_SYSCALL (5) /* see errno */
+#define SSL_ERROR_ZERO_RETURN (6)
+#define SSL_ERROR_WANT_CONNECT (7)
+#define SSL_ERROR_WANT_ACCEPT (8)
+
+#define TLSEXT_TYPE_server_name (0)
+#define TLSEXT_NAMETYPE_host_name (0)
+#define SSL_TLSEXT_ERR_OK (0)
+#define SSL_TLSEXT_ERR_ALERT_WARNING (1)
+#define SSL_TLSEXT_ERR_ALERT_FATAL (2)
+#define SSL_TLSEXT_ERR_NOACK (3)
+
+struct ssl_func {
+ const char *name; /* SSL function name */
+ void (*ptr)(void); /* Function pointer */
+};
+
+
+#if defined(OPENSSL_API_1_1)
+
+#define SSL_free (*(void (*)(SSL *))ssl_sw[0].ptr)
+#define SSL_accept (*(int (*)(SSL *))ssl_sw[1].ptr)
+#define SSL_connect (*(int (*)(SSL *))ssl_sw[2].ptr)
+#define SSL_read (*(int (*)(SSL *, void *, int))ssl_sw[3].ptr)
+#define SSL_write (*(int (*)(SSL *, const void *, int))ssl_sw[4].ptr)
+#define SSL_get_error (*(int (*)(SSL *, int))ssl_sw[5].ptr)
+#define SSL_set_fd (*(int (*)(SSL *, SOCKET))ssl_sw[6].ptr)
+#define SSL_new (*(SSL * (*)(SSL_CTX *)) ssl_sw[7].ptr)
+#define SSL_CTX_new (*(SSL_CTX * (*)(SSL_METHOD *)) ssl_sw[8].ptr)
+#define TLS_server_method (*(SSL_METHOD * (*)(void)) ssl_sw[9].ptr)
+#define OPENSSL_init_ssl \
+ (*(int (*)(uint64_t opts, \
+ const OPENSSL_INIT_SETTINGS *settings))ssl_sw[10] \
+ .ptr)
+#define SSL_CTX_use_PrivateKey_file \
+ (*(int (*)(SSL_CTX *, const char *, int))ssl_sw[11].ptr)
+#define SSL_CTX_use_certificate_file \
+ (*(int (*)(SSL_CTX *, const char *, int))ssl_sw[12].ptr)
+#define SSL_CTX_set_default_passwd_cb \
+ (*(void (*)(SSL_CTX *, mg_callback_t))ssl_sw[13].ptr)
+#define SSL_CTX_free (*(void (*)(SSL_CTX *))ssl_sw[14].ptr)
+#define SSL_CTX_use_certificate_chain_file \
+ (*(int (*)(SSL_CTX *, const char *))ssl_sw[15].ptr)
+#define TLS_client_method (*(SSL_METHOD * (*)(void)) ssl_sw[16].ptr)
+#define SSL_pending (*(int (*)(SSL *))ssl_sw[17].ptr)
+#define SSL_CTX_set_verify \
+ (*(void (*)(SSL_CTX *, \
+ int, \
+ int (*verify_callback)(int, X509_STORE_CTX *)))ssl_sw[18] \
+ .ptr)
+#define SSL_shutdown (*(int (*)(SSL *))ssl_sw[19].ptr)
+#define SSL_CTX_load_verify_locations \
+ (*(int (*)(SSL_CTX *, const char *, const char *))ssl_sw[20].ptr)
+#define SSL_CTX_set_default_verify_paths (*(int (*)(SSL_CTX *))ssl_sw[21].ptr)
+#define SSL_CTX_set_verify_depth (*(void (*)(SSL_CTX *, int))ssl_sw[22].ptr)
+#define SSL_get_peer_certificate (*(X509 * (*)(SSL *)) ssl_sw[23].ptr)
+#define SSL_get_version (*(const char *(*)(SSL *))ssl_sw[24].ptr)
+#define SSL_get_current_cipher (*(SSL_CIPHER * (*)(SSL *)) ssl_sw[25].ptr)
+#define SSL_CIPHER_get_name \
+ (*(const char *(*)(const SSL_CIPHER *))ssl_sw[26].ptr)
+#define SSL_CTX_check_private_key (*(int (*)(SSL_CTX *))ssl_sw[27].ptr)
+#define SSL_CTX_set_session_id_context \
+ (*(int (*)(SSL_CTX *, const unsigned char *, unsigned int))ssl_sw[28].ptr)
+#define SSL_CTX_ctrl (*(long (*)(SSL_CTX *, int, long, void *))ssl_sw[29].ptr)
+#define SSL_CTX_set_cipher_list \
+ (*(int (*)(SSL_CTX *, const char *))ssl_sw[30].ptr)
+#define SSL_CTX_set_options \
+ (*(unsigned long (*)(SSL_CTX *, unsigned long))ssl_sw[31].ptr)
+#define SSL_CTX_set_info_callback \
+ (*(void (*)(SSL_CTX * ctx, void (*callback)(const SSL *, int, int))) \
+ ssl_sw[32] \
+ .ptr)
+#define SSL_get_ex_data (*(char *(*)(const SSL *, int))ssl_sw[33].ptr)
+#define SSL_set_ex_data (*(void (*)(SSL *, int, char *))ssl_sw[34].ptr)
+#define SSL_CTX_callback_ctrl \
+ (*(long (*)(SSL_CTX *, int, void (*)(void)))ssl_sw[35].ptr)
+#define SSL_get_servername \
+ (*(const char *(*)(const SSL *, int type))ssl_sw[36].ptr)
+#define SSL_set_SSL_CTX (*(SSL_CTX * (*)(SSL *, SSL_CTX *)) ssl_sw[37].ptr)
+#define SSL_ctrl (*(long (*)(SSL *, int, long, void *))ssl_sw[38].ptr)
+
+#define SSL_CTX_clear_options(ctx, op) \
+ SSL_CTX_ctrl((ctx), SSL_CTRL_CLEAR_OPTIONS, (op), NULL)
+#define SSL_CTX_set_ecdh_auto(ctx, onoff) \
+ SSL_CTX_ctrl(ctx, SSL_CTRL_SET_ECDH_AUTO, onoff, NULL)
+
+#define SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 53
+#define SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 54
+#define SSL_CTRL_SET_TLSEXT_HOSTNAME 55
+#define SSL_CTX_set_tlsext_servername_callback(ctx, cb) \
+ SSL_CTX_callback_ctrl(ctx, \
+ SSL_CTRL_SET_TLSEXT_SERVERNAME_CB, \
+ (void (*)(void))cb)
+#define SSL_CTX_set_tlsext_servername_arg(ctx, arg) \
+ SSL_CTX_ctrl(ctx, SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG, 0, (void *)arg)
+#define SSL_set_tlsext_host_name(ctx, arg) \
+ SSL_ctrl(ctx, SSL_CTRL_SET_TLSEXT_HOSTNAME, 0, (void *)arg)
+
+#define X509_get_notBefore(x) ((x)->cert_info->validity->notBefore)
+#define X509_get_notAfter(x) ((x)->cert_info->validity->notAfter)
+
+#define SSL_set_app_data(s, arg) (SSL_set_ex_data(s, 0, (char *)arg))
+#define SSL_get_app_data(s) (SSL_get_ex_data(s, 0))
+
+#define ERR_get_error (*(unsigned long (*)(void))crypto_sw[0].ptr)
+#define ERR_error_string (*(char *(*)(unsigned long, char *))crypto_sw[1].ptr)
+#define CONF_modules_unload (*(void (*)(int))crypto_sw[2].ptr)
+#define X509_free (*(void (*)(X509 *))crypto_sw[3].ptr)
+#define X509_get_subject_name (*(X509_NAME * (*)(X509 *)) crypto_sw[4].ptr)
+#define X509_get_issuer_name (*(X509_NAME * (*)(X509 *)) crypto_sw[5].ptr)
+#define X509_NAME_oneline \
+ (*(char *(*)(X509_NAME *, char *, int))crypto_sw[6].ptr)
+#define X509_get_serialNumber (*(ASN1_INTEGER * (*)(X509 *)) crypto_sw[7].ptr)
+#define EVP_get_digestbyname \
+ (*(const EVP_MD *(*)(const char *))crypto_sw[8].ptr)
+#define EVP_Digest \
+ (*(int (*)( \
+ const void *, size_t, void *, unsigned int *, const EVP_MD *, void *)) \
+ crypto_sw[9] \
+ .ptr)
+#define i2d_X509 (*(int (*)(X509 *, unsigned char **))crypto_sw[10].ptr)
+#define BN_bn2hex (*(char *(*)(const BIGNUM *a))crypto_sw[11].ptr)
+#define ASN1_INTEGER_to_BN \
+ (*(BIGNUM * (*)(const ASN1_INTEGER *ai, BIGNUM *bn)) crypto_sw[12].ptr)
+#define BN_free (*(void (*)(const BIGNUM *a))crypto_sw[13].ptr)
+#define CRYPTO_free (*(void (*)(void *addr))crypto_sw[14].ptr)
+#define ERR_clear_error (*(void (*)(void))crypto_sw[15].ptr)
+
+#define OPENSSL_free(a) CRYPTO_free(a)
+
+#define OPENSSL_REMOVE_THREAD_STATE()
+
+/* init_ssl_ctx() function updates this array.
+ * It loads SSL library dynamically and changes NULLs to the actual addresses
+ * of respective functions. The macros above (like SSL_connect()) are really
+ * just calling these functions indirectly via the pointer. */
+static struct ssl_func ssl_sw[] = {{"SSL_free", NULL},
+ {"SSL_accept", NULL},
+ {"SSL_connect", NULL},
+ {"SSL_read", NULL},
+ {"SSL_write", NULL},
+ {"SSL_get_error", NULL},
+ {"SSL_set_fd", NULL},
+ {"SSL_new", NULL},
+ {"SSL_CTX_new", NULL},
+ {"TLS_server_method", NULL},
+ {"OPENSSL_init_ssl", NULL},
+ {"SSL_CTX_use_PrivateKey_file", NULL},
+ {"SSL_CTX_use_certificate_file", NULL},
+ {"SSL_CTX_set_default_passwd_cb", NULL},
+ {"SSL_CTX_free", NULL},
+ {"SSL_CTX_use_certificate_chain_file", NULL},
+ {"TLS_client_method", NULL},
+ {"SSL_pending", NULL},
+ {"SSL_CTX_set_verify", NULL},
+ {"SSL_shutdown", NULL},
+ {"SSL_CTX_load_verify_locations", NULL},
+ {"SSL_CTX_set_default_verify_paths", NULL},
+ {"SSL_CTX_set_verify_depth", NULL},
+ {"SSL_get_peer_certificate", NULL},
+ {"SSL_get_version", NULL},
+ {"SSL_get_current_cipher", NULL},
+ {"SSL_CIPHER_get_name", NULL},
+ {"SSL_CTX_check_private_key", NULL},
+ {"SSL_CTX_set_session_id_context", NULL},
+ {"SSL_CTX_ctrl", NULL},
+ {"SSL_CTX_set_cipher_list", NULL},
+ {"SSL_CTX_set_options", NULL},
+ {"SSL_CTX_set_info_callback", NULL},
+ {"SSL_get_ex_data", NULL},
+ {"SSL_set_ex_data", NULL},
+ {"SSL_CTX_callback_ctrl", NULL},
+ {"SSL_get_servername", NULL},
+ {"SSL_set_SSL_CTX", NULL},
+ {"SSL_ctrl", NULL},
+ {NULL, NULL}};
+
+
+/* Similar array as ssl_sw. These functions could be located in different
+ * lib. */
+static struct ssl_func crypto_sw[] = {{"ERR_get_error", NULL},
+ {"ERR_error_string", NULL},
+ {"CONF_modules_unload", NULL},
+ {"X509_free", NULL},
+ {"X509_get_subject_name", NULL},
+ {"X509_get_issuer_name", NULL},
+ {"X509_NAME_oneline", NULL},
+ {"X509_get_serialNumber", NULL},
+ {"EVP_get_digestbyname", NULL},
+ {"EVP_Digest", NULL},
+ {"i2d_X509", NULL},
+ {"BN_bn2hex", NULL},
+ {"ASN1_INTEGER_to_BN", NULL},
+ {"BN_free", NULL},
+ {"CRYPTO_free", NULL},
+ {"ERR_clear_error", NULL},
+ {NULL, NULL}};
+#else
+
+#define SSL_free (*(void (*)(SSL *))ssl_sw[0].ptr)
+#define SSL_accept (*(int (*)(SSL *))ssl_sw[1].ptr)
+#define SSL_connect (*(int (*)(SSL *))ssl_sw[2].ptr)
+#define SSL_read (*(int (*)(SSL *, void *, int))ssl_sw[3].ptr)
+#define SSL_write (*(int (*)(SSL *, const void *, int))ssl_sw[4].ptr)
+#define SSL_get_error (*(int (*)(SSL *, int))ssl_sw[5].ptr)
+#define SSL_set_fd (*(int (*)(SSL *, SOCKET))ssl_sw[6].ptr)
+#define SSL_new (*(SSL * (*)(SSL_CTX *)) ssl_sw[7].ptr)
+#define SSL_CTX_new (*(SSL_CTX * (*)(SSL_METHOD *)) ssl_sw[8].ptr)
+#define SSLv23_server_method (*(SSL_METHOD * (*)(void)) ssl_sw[9].ptr)
+#define SSL_library_init (*(int (*)(void))ssl_sw[10].ptr)
+#define SSL_CTX_use_PrivateKey_file \
+ (*(int (*)(SSL_CTX *, const char *, int))ssl_sw[11].ptr)
+#define SSL_CTX_use_certificate_file \
+ (*(int (*)(SSL_CTX *, const char *, int))ssl_sw[12].ptr)
+#define SSL_CTX_set_default_passwd_cb \
+ (*(void (*)(SSL_CTX *, mg_callback_t))ssl_sw[13].ptr)
+#define SSL_CTX_free (*(void (*)(SSL_CTX *))ssl_sw[14].ptr)
+#define SSL_load_error_strings (*(void (*)(void))ssl_sw[15].ptr)
+#define SSL_CTX_use_certificate_chain_file \
+ (*(int (*)(SSL_CTX *, const char *))ssl_sw[16].ptr)
+#define SSLv23_client_method (*(SSL_METHOD * (*)(void)) ssl_sw[17].ptr)
+#define SSL_pending (*(int (*)(SSL *))ssl_sw[18].ptr)
+#define SSL_CTX_set_verify \
+ (*(void (*)(SSL_CTX *, \
+ int, \
+ int (*verify_callback)(int, X509_STORE_CTX *)))ssl_sw[19] \
+ .ptr)
+#define SSL_shutdown (*(int (*)(SSL *))ssl_sw[20].ptr)
+#define SSL_CTX_load_verify_locations \
+ (*(int (*)(SSL_CTX *, const char *, const char *))ssl_sw[21].ptr)
+#define SSL_CTX_set_default_verify_paths (*(int (*)(SSL_CTX *))ssl_sw[22].ptr)
+#define SSL_CTX_set_verify_depth (*(void (*)(SSL_CTX *, int))ssl_sw[23].ptr)
+#define SSL_get_peer_certificate (*(X509 * (*)(SSL *)) ssl_sw[24].ptr)
+#define SSL_get_version (*(const char *(*)(SSL *))ssl_sw[25].ptr)
+#define SSL_get_current_cipher (*(SSL_CIPHER * (*)(SSL *)) ssl_sw[26].ptr)
+#define SSL_CIPHER_get_name \
+ (*(const char *(*)(const SSL_CIPHER *))ssl_sw[27].ptr)
+#define SSL_CTX_check_private_key (*(int (*)(SSL_CTX *))ssl_sw[28].ptr)
+#define SSL_CTX_set_session_id_context \
+ (*(int (*)(SSL_CTX *, const unsigned char *, unsigned int))ssl_sw[29].ptr)
+#define SSL_CTX_ctrl (*(long (*)(SSL_CTX *, int, long, void *))ssl_sw[30].ptr)
+#define SSL_CTX_set_cipher_list \
+ (*(int (*)(SSL_CTX *, const char *))ssl_sw[31].ptr)
+#define SSL_CTX_set_info_callback \
+ (*(void (*)(SSL_CTX *, void (*callback)(const SSL *, int, int)))ssl_sw[32] \
+ .ptr)
+#define SSL_get_ex_data (*(char *(*)(const SSL *, int))ssl_sw[33].ptr)
+#define SSL_set_ex_data (*(void (*)(SSL *, int, char *))ssl_sw[34].ptr)
+#define SSL_CTX_callback_ctrl \
+ (*(long (*)(SSL_CTX *, int, void (*)(void)))ssl_sw[35].ptr)
+#define SSL_get_servername \
+ (*(const char *(*)(const SSL *, int type))ssl_sw[36].ptr)
+#define SSL_set_SSL_CTX (*(SSL_CTX * (*)(SSL *, SSL_CTX *)) ssl_sw[37].ptr)
+#define SSL_ctrl (*(long (*)(SSL *, int, long, void *))ssl_sw[38].ptr)
+
+#define SSL_CTX_set_options(ctx, op) \
+ SSL_CTX_ctrl((ctx), SSL_CTRL_OPTIONS, (op), NULL)
+#define SSL_CTX_clear_options(ctx, op) \
+ SSL_CTX_ctrl((ctx), SSL_CTRL_CLEAR_OPTIONS, (op), NULL)
+#define SSL_CTX_set_ecdh_auto(ctx, onoff) \
+ SSL_CTX_ctrl(ctx, SSL_CTRL_SET_ECDH_AUTO, onoff, NULL)
+
+#define SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 53
+#define SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 54
+#define SSL_CTRL_SET_TLSEXT_HOSTNAME 55
+#define SSL_CTX_set_tlsext_servername_callback(ctx, cb) \
+ SSL_CTX_callback_ctrl(ctx, \
+ SSL_CTRL_SET_TLSEXT_SERVERNAME_CB, \
+ (void (*)(void))cb)
+#define SSL_CTX_set_tlsext_servername_arg(ctx, arg) \
+ SSL_CTX_ctrl(ctx, SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG, 0, (void *)arg)
+#define SSL_set_tlsext_host_name(ctx, arg) \
+ SSL_ctrl(ctx, SSL_CTRL_SET_TLSEXT_HOSTNAME, 0, (void *)arg)
+
+#define X509_get_notBefore(x) ((x)->cert_info->validity->notBefore)
+#define X509_get_notAfter(x) ((x)->cert_info->validity->notAfter)
+
+#define SSL_set_app_data(s, arg) (SSL_set_ex_data(s, 0, (char *)arg))
+#define SSL_get_app_data(s) (SSL_get_ex_data(s, 0))
+
+#define CRYPTO_num_locks (*(int (*)(void))crypto_sw[0].ptr)
+#define CRYPTO_set_locking_callback \
+ (*(void (*)(void (*)(int, int, const char *, int)))crypto_sw[1].ptr)
+#define CRYPTO_set_id_callback \
+ (*(void (*)(unsigned long (*)(void)))crypto_sw[2].ptr)
+#define ERR_get_error (*(unsigned long (*)(void))crypto_sw[3].ptr)
+#define ERR_error_string (*(char *(*)(unsigned long, char *))crypto_sw[4].ptr)
+#define ERR_remove_state (*(void (*)(unsigned long))crypto_sw[5].ptr)
+#define ERR_free_strings (*(void (*)(void))crypto_sw[6].ptr)
+#define ENGINE_cleanup (*(void (*)(void))crypto_sw[7].ptr)
+#define CONF_modules_unload (*(void (*)(int))crypto_sw[8].ptr)
+#define CRYPTO_cleanup_all_ex_data (*(void (*)(void))crypto_sw[9].ptr)
+#define EVP_cleanup (*(void (*)(void))crypto_sw[10].ptr)
+#define X509_free (*(void (*)(X509 *))crypto_sw[11].ptr)
+#define X509_get_subject_name (*(X509_NAME * (*)(X509 *)) crypto_sw[12].ptr)
+#define X509_get_issuer_name (*(X509_NAME * (*)(X509 *)) crypto_sw[13].ptr)
+#define X509_NAME_oneline \
+ (*(char *(*)(X509_NAME *, char *, int))crypto_sw[14].ptr)
+#define X509_get_serialNumber (*(ASN1_INTEGER * (*)(X509 *)) crypto_sw[15].ptr)
+#define i2c_ASN1_INTEGER \
+ (*(int (*)(ASN1_INTEGER *, unsigned char **))crypto_sw[16].ptr)
+#define EVP_get_digestbyname \
+ (*(const EVP_MD *(*)(const char *))crypto_sw[17].ptr)
+#define EVP_Digest \
+ (*(int (*)( \
+ const void *, size_t, void *, unsigned int *, const EVP_MD *, void *)) \
+ crypto_sw[18] \
+ .ptr)
+#define i2d_X509 (*(int (*)(X509 *, unsigned char **))crypto_sw[19].ptr)
+#define BN_bn2hex (*(char *(*)(const BIGNUM *a))crypto_sw[20].ptr)
+#define ASN1_INTEGER_to_BN \
+ (*(BIGNUM * (*)(const ASN1_INTEGER *ai, BIGNUM *bn)) crypto_sw[21].ptr)
+#define BN_free (*(void (*)(const BIGNUM *a))crypto_sw[22].ptr)
+#define CRYPTO_free (*(void (*)(void *addr))crypto_sw[23].ptr)
+#define ERR_clear_error (*(void (*)(void))crypto_sw[24].ptr)
+
+#define OPENSSL_free(a) CRYPTO_free(a)
+
+/* use here ERR_remove_state,
+ * while on some platforms function is not included into library due to
+ * deprication */
+#define OPENSSL_REMOVE_THREAD_STATE() ERR_remove_state(0)
+
+/* init_ssl_ctx() function updates this array.
+ * It loads SSL library dynamically and changes NULLs to the actual addresses
+ * of respective functions. The macros above (like SSL_connect()) are really
+ * just calling these functions indirectly via the pointer. */
+static struct ssl_func ssl_sw[] = {{"SSL_free", NULL},
+ {"SSL_accept", NULL},
+ {"SSL_connect", NULL},
+ {"SSL_read", NULL},
+ {"SSL_write", NULL},
+ {"SSL_get_error", NULL},
+ {"SSL_set_fd", NULL},
+ {"SSL_new", NULL},
+ {"SSL_CTX_new", NULL},
+ {"SSLv23_server_method", NULL},
+ {"SSL_library_init", NULL},
+ {"SSL_CTX_use_PrivateKey_file", NULL},
+ {"SSL_CTX_use_certificate_file", NULL},
+ {"SSL_CTX_set_default_passwd_cb", NULL},
+ {"SSL_CTX_free", NULL},
+ {"SSL_load_error_strings", NULL},
+ {"SSL_CTX_use_certificate_chain_file", NULL},
+ {"SSLv23_client_method", NULL},
+ {"SSL_pending", NULL},
+ {"SSL_CTX_set_verify", NULL},
+ {"SSL_shutdown", NULL},
+ {"SSL_CTX_load_verify_locations", NULL},
+ {"SSL_CTX_set_default_verify_paths", NULL},
+ {"SSL_CTX_set_verify_depth", NULL},
+ {"SSL_get_peer_certificate", NULL},
+ {"SSL_get_version", NULL},
+ {"SSL_get_current_cipher", NULL},
+ {"SSL_CIPHER_get_name", NULL},
+ {"SSL_CTX_check_private_key", NULL},
+ {"SSL_CTX_set_session_id_context", NULL},
+ {"SSL_CTX_ctrl", NULL},
+ {"SSL_CTX_set_cipher_list", NULL},
+ {"SSL_CTX_set_info_callback", NULL},
+ {"SSL_get_ex_data", NULL},
+ {"SSL_set_ex_data", NULL},
+ {"SSL_CTX_callback_ctrl", NULL},
+ {"SSL_get_servername", NULL},
+ {"SSL_set_SSL_CTX", NULL},
+ {"SSL_ctrl", NULL},
+ {NULL, NULL}};
+
+
+/* Similar array as ssl_sw. These functions could be located in different
+ * lib. */
+static struct ssl_func crypto_sw[] = {{"CRYPTO_num_locks", NULL},
+ {"CRYPTO_set_locking_callback", NULL},
+ {"CRYPTO_set_id_callback", NULL},
+ {"ERR_get_error", NULL},
+ {"ERR_error_string", NULL},
+ {"ERR_remove_state", NULL},
+ {"ERR_free_strings", NULL},
+ {"ENGINE_cleanup", NULL},
+ {"CONF_modules_unload", NULL},
+ {"CRYPTO_cleanup_all_ex_data", NULL},
+ {"EVP_cleanup", NULL},
+ {"X509_free", NULL},
+ {"X509_get_subject_name", NULL},
+ {"X509_get_issuer_name", NULL},
+ {"X509_NAME_oneline", NULL},
+ {"X509_get_serialNumber", NULL},
+ {"i2c_ASN1_INTEGER", NULL},
+ {"EVP_get_digestbyname", NULL},
+ {"EVP_Digest", NULL},
+ {"i2d_X509", NULL},
+ {"BN_bn2hex", NULL},
+ {"ASN1_INTEGER_to_BN", NULL},
+ {"BN_free", NULL},
+ {"CRYPTO_free", NULL},
+ {"ERR_clear_error", NULL},
+ {NULL, NULL}};
+#endif /* OPENSSL_API_1_1 */
+#endif /* NO_SSL_DL */
+#endif /* NO_SSL */
+
+
+#if !defined(NO_CACHING)
+static const char month_names[][4] = {"Jan",
+ "Feb",
+ "Mar",
+ "Apr",
+ "May",
+ "Jun",
+ "Jul",
+ "Aug",
+ "Sep",
+ "Oct",
+ "Nov",
+ "Dec"};
+#endif /* !NO_CACHING */
+
+/* Unified socket address. For IPv6 support, add IPv6 address structure in
+ * the
+ * union u. */
+union usa {
+ struct sockaddr sa;
+ struct sockaddr_in sin;
+#if defined(USE_IPV6)
+ struct sockaddr_in6 sin6;
+#endif
+};
+
+/* Describes a string (chunk of memory). */
+struct vec {
+ const char *ptr;
+ size_t len;
+};
+
+struct mg_file_stat {
+ /* File properties filled by mg_stat: */
+ uint64_t size;
+ time_t last_modified;
+ int is_directory; /* Set to 1 if mg_stat is called for a directory */
+ int is_gzipped; /* Set to 1 if the content is gzipped, in which
+ * case we need a "Content-Eencoding: gzip" header */
+ int location; /* 0 = nowhere, 1 = on disk, 2 = in memory */
+};
+
+struct mg_file_in_memory {
+ char *p;
+ uint32_t pos;
+ char mode;
+};
+
+struct mg_file_access {
+ /* File properties filled by mg_fopen: */
+ FILE *fp;
+#if defined(MG_USE_OPEN_FILE)
+ /* TODO (low): Remove obsolete "file in memory" implementation.
+ * In an "early 2017" discussion at Google groups
+ * https://groups.google.com/forum/#!topic/civetweb/h9HT4CmeYqI
+ * we decided to get rid of this feature (after some fade-out
+ * phase). */
+ const char *membuf;
+#endif
+};
+
+struct mg_file {
+ struct mg_file_stat stat;
+ struct mg_file_access access;
+};
+
+#if defined(MG_USE_OPEN_FILE)
+
+#define STRUCT_FILE_INITIALIZER \
+ { \
+ {(uint64_t)0, (time_t)0, 0, 0, 0}, \
+ { \
+ (FILE *)NULL, (const char *)NULL \
+ } \
+ }
+
+#else
+
+#define STRUCT_FILE_INITIALIZER \
+ { \
+ {(uint64_t)0, (time_t)0, 0, 0, 0}, \
+ { \
+ (FILE *)NULL \
+ } \
+ }
+
+#endif
+
+
+/* Describes listening socket, or socket which was accept()-ed by the master
+ * thread and queued for future handling by the worker thread. */
+struct socket {
+ SOCKET sock; /* Listening socket */
+ union usa lsa; /* Local socket address */
+ union usa rsa; /* Remote socket address */
+ unsigned char is_ssl; /* Is port SSL-ed */
+ unsigned char ssl_redir; /* Is port supposed to redirect everything to SSL
+ * port */
+ unsigned char in_use; /* 0: invalid, 1: valid, 2: free */
+};
+
+
+/* Enum const for all options must be in sync with
+ * static struct mg_option config_options[]
+ * This is tested in the unit test (test/private.c)
+ * "Private Config Options"
+ */
+enum {
+ /* Once for each server */
+ LISTENING_PORTS,
+ NUM_THREADS,
+ RUN_AS_USER,
+ CONFIG_TCP_NODELAY, /* Prepended CONFIG_ to avoid conflict with the
+ * socket option typedef TCP_NODELAY. */
+ MAX_REQUEST_SIZE,
+ LINGER_TIMEOUT,
+#if defined(__linux__)
+ ALLOW_SENDFILE_CALL,
+#endif
+#if defined(_WIN32)
+ CASE_SENSITIVE_FILES,
+#endif
+ THROTTLE,
+ ACCESS_LOG_FILE,
+ ERROR_LOG_FILE,
+ ENABLE_KEEP_ALIVE,
+ REQUEST_TIMEOUT,
+ KEEP_ALIVE_TIMEOUT,
+#if defined(USE_WEBSOCKET)
+ WEBSOCKET_TIMEOUT,
+ ENABLE_WEBSOCKET_PING_PONG,
+#endif
+ DECODE_URL,
+#if defined(USE_LUA)
+ LUA_BACKGROUND_SCRIPT,
+ LUA_BACKGROUND_SCRIPT_PARAMS,
+#endif
+#if defined(USE_TIMERS)
+ CGI_TIMEOUT,
+#endif
+
+ /* Once for each domain */
+ DOCUMENT_ROOT,
+ CGI_EXTENSIONS,
+ CGI_ENVIRONMENT,
+ PUT_DELETE_PASSWORDS_FILE,
+ CGI_INTERPRETER,
+ PROTECT_URI,
+ AUTHENTICATION_DOMAIN,
+ ENABLE_AUTH_DOMAIN_CHECK,
+ SSI_EXTENSIONS,
+ ENABLE_DIRECTORY_LISTING,
+ GLOBAL_PASSWORDS_FILE,
+ INDEX_FILES,
+ ACCESS_CONTROL_LIST,
+ EXTRA_MIME_TYPES,
+ SSL_CERTIFICATE,
+ SSL_CERTIFICATE_CHAIN,
+ URL_REWRITE_PATTERN,
+ HIDE_FILES,
+ SSL_DO_VERIFY_PEER,
+ SSL_CA_PATH,
+ SSL_CA_FILE,
+ SSL_VERIFY_DEPTH,
+ SSL_DEFAULT_VERIFY_PATHS,
+ SSL_CIPHER_LIST,
+ SSL_PROTOCOL_VERSION,
+ SSL_SHORT_TRUST,
+
+#if defined(USE_LUA)
+ LUA_PRELOAD_FILE,
+ LUA_SCRIPT_EXTENSIONS,
+ LUA_SERVER_PAGE_EXTENSIONS,
+#if defined(MG_EXPERIMENTAL_INTERFACES)
+ LUA_DEBUG_PARAMS,
+#endif
+#endif
+#if defined(USE_DUKTAPE)
+ DUKTAPE_SCRIPT_EXTENSIONS,
+#endif
+
+#if defined(USE_WEBSOCKET)
+ WEBSOCKET_ROOT,
+#endif
+#if defined(USE_LUA) && defined(USE_WEBSOCKET)
+ LUA_WEBSOCKET_EXTENSIONS,
+#endif
+
+ ACCESS_CONTROL_ALLOW_ORIGIN,
+ ACCESS_CONTROL_ALLOW_METHODS,
+ ACCESS_CONTROL_ALLOW_HEADERS,
+ ERROR_PAGES,
+#if !defined(NO_CACHING)
+ STATIC_FILE_MAX_AGE,
+#endif
+#if !defined(NO_SSL)
+ STRICT_HTTPS_MAX_AGE,
+#endif
+ ADDITIONAL_HEADER,
+ ALLOW_INDEX_SCRIPT_SUB_RES,
+#if defined(DAEMONIZE)
+ ENABLE_DAEMONIZE,
+#endif
+
+ NUM_OPTIONS
+};
+
+
+/* Config option name, config types, default value.
+ * Must be in the same order as the enum const above.
+ */
+static const struct mg_option config_options[] = {
+
+ /* Once for each server */
+ {"listening_ports", MG_CONFIG_TYPE_STRING_LIST, "8080"},
+ {"num_threads", MG_CONFIG_TYPE_NUMBER, "50"},
+ {"run_as_user", MG_CONFIG_TYPE_STRING, NULL},
+ {"tcp_nodelay", MG_CONFIG_TYPE_NUMBER, "0"},
+ {"max_request_size", MG_CONFIG_TYPE_NUMBER, "16384"},
+ {"linger_timeout_ms", MG_CONFIG_TYPE_NUMBER, NULL},
+#if defined(__linux__)
+ {"allow_sendfile_call", MG_CONFIG_TYPE_BOOLEAN, "yes"},
+#endif
+#if defined(_WIN32)
+ {"case_sensitive", MG_CONFIG_TYPE_BOOLEAN, "no"},
+#endif
+ {"throttle", MG_CONFIG_TYPE_STRING_LIST, NULL},
+ {"access_log_file", MG_CONFIG_TYPE_FILE, NULL},
+ {"error_log_file", MG_CONFIG_TYPE_FILE, NULL},
+ {"enable_keep_alive", MG_CONFIG_TYPE_BOOLEAN, "no"},
+ {"request_timeout_ms", MG_CONFIG_TYPE_NUMBER, "30000"},
+ {"keep_alive_timeout_ms", MG_CONFIG_TYPE_NUMBER, "500"},
+#if defined(USE_WEBSOCKET)
+ {"websocket_timeout_ms", MG_CONFIG_TYPE_NUMBER, NULL},
+ {"enable_websocket_ping_pong", MG_CONFIG_TYPE_BOOLEAN, "no"},
+#endif
+ {"decode_url", MG_CONFIG_TYPE_BOOLEAN, "yes"},
+#if defined(USE_LUA)
+ {"lua_background_script", MG_CONFIG_TYPE_FILE, NULL},
+ {"lua_background_script_params", MG_CONFIG_TYPE_STRING_LIST, NULL},
+#endif
+#if defined(USE_TIMERS)
+ {"cgi_timeout_ms", MG_CONFIG_TYPE_NUMBER, NULL},
+#endif
+
+ /* Once for each domain */
+ {"document_root", MG_CONFIG_TYPE_DIRECTORY, NULL},
+ {"cgi_pattern", MG_CONFIG_TYPE_EXT_PATTERN, "**.cgi$|**.pl$|**.php$"},
+ {"cgi_environment", MG_CONFIG_TYPE_STRING_LIST, NULL},
+ {"put_delete_auth_file", MG_CONFIG_TYPE_FILE, NULL},
+ {"cgi_interpreter", MG_CONFIG_TYPE_FILE, NULL},
+ {"protect_uri", MG_CONFIG_TYPE_STRING_LIST, NULL},
+ {"authentication_domain", MG_CONFIG_TYPE_STRING, "mydomain.com"},
+ {"enable_auth_domain_check", MG_CONFIG_TYPE_BOOLEAN, "yes"},
+ {"ssi_pattern", MG_CONFIG_TYPE_EXT_PATTERN, "**.shtml$|**.shtm$"},
+ {"enable_directory_listing", MG_CONFIG_TYPE_BOOLEAN, "yes"},
+ {"global_auth_file", MG_CONFIG_TYPE_FILE, NULL},
+ {"index_files",
+ MG_CONFIG_TYPE_STRING_LIST,
+#if defined(USE_LUA)
+ "index.xhtml,index.html,index.htm,"
+ "index.lp,index.lsp,index.lua,index.cgi,"
+ "index.shtml,index.php"},
+#else
+ "index.xhtml,index.html,index.htm,index.cgi,index.shtml,index.php"},
+#endif
+ {"access_control_list", MG_CONFIG_TYPE_STRING_LIST, NULL},
+ {"extra_mime_types", MG_CONFIG_TYPE_STRING_LIST, NULL},
+ {"ssl_certificate", MG_CONFIG_TYPE_FILE, NULL},
+ {"ssl_certificate_chain", MG_CONFIG_TYPE_FILE, NULL},
+ {"url_rewrite_patterns", MG_CONFIG_TYPE_STRING_LIST, NULL},
+ {"hide_files_patterns", MG_CONFIG_TYPE_EXT_PATTERN, NULL},
+
+ {"ssl_verify_peer", MG_CONFIG_TYPE_YES_NO_OPTIONAL, "no"},
+
+ {"ssl_ca_path", MG_CONFIG_TYPE_DIRECTORY, NULL},
+ {"ssl_ca_file", MG_CONFIG_TYPE_FILE, NULL},
+ {"ssl_verify_depth", MG_CONFIG_TYPE_NUMBER, "9"},
+ {"ssl_default_verify_paths", MG_CONFIG_TYPE_BOOLEAN, "yes"},
+ {"ssl_cipher_list", MG_CONFIG_TYPE_STRING, NULL},
+ {"ssl_protocol_version", MG_CONFIG_TYPE_NUMBER, "0"},
+ {"ssl_short_trust", MG_CONFIG_TYPE_BOOLEAN, "no"},
+
+#if defined(USE_LUA)
+ {"lua_preload_file", MG_CONFIG_TYPE_FILE, NULL},
+ {"lua_script_pattern", MG_CONFIG_TYPE_EXT_PATTERN, "**.lua$"},
+ {"lua_server_page_pattern", MG_CONFIG_TYPE_EXT_PATTERN, "**.lp$|**.lsp$"},
+#if defined(MG_EXPERIMENTAL_INTERFACES)
+ {"lua_debug", MG_CONFIG_TYPE_STRING, NULL},
+#endif
+#endif
+#if defined(USE_DUKTAPE)
+ /* The support for duktape is still in alpha version state.
+ * The name of this config option might change. */
+ {"duktape_script_pattern", MG_CONFIG_TYPE_EXT_PATTERN, "**.ssjs$"},
+#endif
+
+#if defined(USE_WEBSOCKET)
+ {"websocket_root", MG_CONFIG_TYPE_DIRECTORY, NULL},
+#endif
+#if defined(USE_LUA) && defined(USE_WEBSOCKET)
+ {"lua_websocket_pattern", MG_CONFIG_TYPE_EXT_PATTERN, "**.lua$"},
+#endif
+ {"access_control_allow_origin", MG_CONFIG_TYPE_STRING, "*"},
+ {"access_control_allow_methods", MG_CONFIG_TYPE_STRING, "*"},
+ {"access_control_allow_headers", MG_CONFIG_TYPE_STRING, "*"},
+ {"error_pages", MG_CONFIG_TYPE_DIRECTORY, NULL},
+#if !defined(NO_CACHING)
+ {"static_file_max_age", MG_CONFIG_TYPE_NUMBER, "3600"},
+#endif
+#if !defined(NO_SSL)
+ {"strict_transport_security_max_age", MG_CONFIG_TYPE_NUMBER, NULL},
+#endif
+ {"additional_header", MG_CONFIG_TYPE_STRING_MULTILINE, NULL},
+ {"allow_index_script_resource", MG_CONFIG_TYPE_BOOLEAN, "no"},
+#if defined(DAEMONIZE)
+ {"daemonize", MG_CONFIG_TYPE_BOOLEAN, "no"},
+#endif
+
+ {NULL, MG_CONFIG_TYPE_UNKNOWN, NULL}};
+
+
+/* Check if the config_options and the corresponding enum have compatible
+ * sizes. */
+mg_static_assert((sizeof(config_options) / sizeof(config_options[0]))
+ == (NUM_OPTIONS + 1),
+ "config_options and enum not sync");
+
+
+enum { REQUEST_HANDLER, WEBSOCKET_HANDLER, AUTH_HANDLER };
+
+
+struct mg_handler_info {
+ /* Name/Pattern of the URI. */
+ char *uri;
+ size_t uri_len;
+
+ /* handler type */
+ int handler_type;
+
+ /* Handler for http/https or authorization requests. */
+ mg_request_handler handler;
+ unsigned int refcount;
+ pthread_mutex_t refcount_mutex; /* Protects refcount */
+ pthread_cond_t
+ refcount_cond; /* Signaled when handler refcount is decremented */
+
+ /* Handler for ws/wss (websocket) requests. */
+ mg_websocket_connect_handler connect_handler;
+ mg_websocket_ready_handler ready_handler;
+ mg_websocket_data_handler data_handler;
+ mg_websocket_close_handler close_handler;
+
+ /* accepted subprotocols for ws/wss requests. */
+ struct mg_websocket_subprotocols *subprotocols;
+
+ /* Handler for authorization requests */
+ mg_authorization_handler auth_handler;
+
+ /* User supplied argument for the handler function. */
+ void *cbdata;
+
+ /* next handler in a linked list */
+ struct mg_handler_info *next;
+};
+
+
+enum {
+ CONTEXT_INVALID,
+ CONTEXT_SERVER,
+ CONTEXT_HTTP_CLIENT,
+ CONTEXT_WS_CLIENT
+};
+
+
+struct mg_domain_context {
+ SSL_CTX *ssl_ctx; /* SSL context */
+ char *config[NUM_OPTIONS]; /* Civetweb configuration parameters */
+ struct mg_handler_info *handlers; /* linked list of uri handlers */
+
+ /* Server nonce */
+ uint64_t auth_nonce_mask; /* Mask for all nonce values */
+ unsigned long nonce_count; /* Used nonces, used for authentication */
+
+#if defined(USE_LUA) && defined(USE_WEBSOCKET)
+ /* linked list of shared lua websockets */
+ struct mg_shared_lua_websocket_list *shared_lua_websockets;
+#endif
+
+ /* Linked list of domains */
+ struct mg_domain_context *next;
+};
+
+
+struct mg_context {
+
+ /* Part 1 - Physical context:
+ * This holds threads, ports, timeouts, ...
+ * set for the entire server, independent from the
+ * addressed hostname.
+ */
+
+ /* Connection related */
+ int context_type; /* See CONTEXT_* above */
+
+ struct socket *listening_sockets;
+ struct mg_pollfd *listening_socket_fds;
+ unsigned int num_listening_sockets;
+
+ struct mg_connection *worker_connections; /* The connection struct, pre-
+ * allocated for each worker */
+
+#if defined(USE_SERVER_STATS)
+ int active_connections;
+ int max_connections;
+ int64_t total_connections;
+ int64_t total_requests;
+ int64_t total_data_read;
+ int64_t total_data_written;
+#endif
+
+ /* Thread related */
+ volatile int stop_flag; /* Should we stop event loop */
+ pthread_mutex_t thread_mutex; /* Protects (max|num)_threads */
+
+ pthread_t masterthreadid; /* The master thread ID */
+ unsigned int
+ cfg_worker_threads; /* The number of configured worker threads. */
+ pthread_t *worker_threadids; /* The worker thread IDs */
+
+/* Connection to thread dispatching */
+#if defined(ALTERNATIVE_QUEUE)
+ struct socket *client_socks;
+ void **client_wait_events;
+#else
+ struct socket queue[MGSQLEN]; /* Accepted sockets */
+ volatile int sq_head; /* Head of the socket queue */
+ volatile int sq_tail; /* Tail of the socket queue */
+ pthread_cond_t sq_full; /* Signaled when socket is produced */
+ pthread_cond_t sq_empty; /* Signaled when socket is consumed */
+#endif
+
+ /* Memory related */
+ unsigned int max_request_size; /* The max request size */
+
+#if defined(USE_SERVER_STATS)
+ struct mg_memory_stat ctx_memory;
+#endif
+
+ /* Operating system related */
+ char *systemName; /* What operating system is running */
+ time_t start_time; /* Server start time, used for authentication
+ * and for diagnstics. */
+
+#if defined(USE_TIMERS)
+ struct ttimers *timers;
+#endif
+
+/* Lua specific: Background operations and shared websockets */
+#if defined(USE_LUA)
+ void *lua_background_state;
+#endif
+
+ /* Server nonce */
+ pthread_mutex_t nonce_mutex; /* Protects nonce_count */
+
+ /* Server callbacks */
+ struct mg_callbacks callbacks; /* User-defined callback function */
+ void *user_data; /* User-defined data */
+
+ /* Part 2 - Logical domain:
+ * This holds hostname, TLS certificate, document root, ...
+ * set for a domain hosted at the server.
+ * There may be multiple domains hosted at one physical server.
+ * The default domain "dd" is the first element of a list of
+ * domains.
+ */
+ struct mg_domain_context dd; /* default domain */
+};
+
+
+#if defined(USE_SERVER_STATS)
+static struct mg_memory_stat mg_common_memory = {0, 0, 0};
+
+static struct mg_memory_stat *
+get_memory_stat(struct mg_context *ctx)
+{
+ if (ctx) {
+ return &(ctx->ctx_memory);
+ }
+ return &mg_common_memory;
+}
+#endif
+
+enum {
+ CONNECTION_TYPE_INVALID,
+ CONNECTION_TYPE_REQUEST,
+ CONNECTION_TYPE_RESPONSE
+};
+
+struct mg_connection {
+ int connection_type; /* see CONNECTION_TYPE_* above */
+
+ struct mg_request_info request_info;
+ struct mg_response_info response_info;
+
+ struct mg_context *phys_ctx;
+ struct mg_domain_context *dom_ctx;
+
+#if defined(USE_SERVER_STATS)
+ int conn_state; /* 0 = undef, numerical value may change in different
+ * versions. For the current definition, see
+ * mg_get_connection_info_impl */
+#endif
+
+ const char *host; /* Host (HTTP/1.1 header or SNI) */
+ SSL *ssl; /* SSL descriptor */
+ struct socket client; /* Connected client */
+ time_t conn_birth_time; /* Time (wall clock) when connection was
+ * established */
+ struct timespec req_time; /* Time (since system start) when the request
+ * was received */
+ int64_t num_bytes_sent; /* Total bytes sent to client */
+ int64_t content_len; /* How many bytes of content can be read
+ * !is_chunked: Content-Length header value
+ * or -1 (until connection closed,
+ * not allowed for a request)
+ * is_chunked: >= 0, appended gradually
+ */
+ int64_t consumed_content; /* How many bytes of content have been read */
+ int is_chunked; /* Transfer-Encoding is chunked:
+ * 0 = not chunked,
+ * 1 = chunked, not yet, or some data read,
+ * 2 = chunked, has error,
+ * 3 = chunked, all data read except trailer,
+ * 4 = chunked, all data read
+ */
+ char *buf; /* Buffer for received data */
+ char *path_info; /* PATH_INFO part of the URL */
+
+ int must_close; /* 1 if connection must be closed */
+ int accept_gzip; /* 1 if gzip encoding is accepted */
+ int in_error_handler; /* 1 if in handler for user defined error
+ * pages */
+#if defined(USE_WEBSOCKET)
+ int in_websocket_handling; /* 1 if in read_websocket */
+#endif
+ int handled_requests; /* Number of requests handled by this connection
+ */
+ int buf_size; /* Buffer size */
+ int request_len; /* Size of the request + headers in a buffer */
+ int data_len; /* Total size of data in a buffer */
+ int status_code; /* HTTP reply status code, e.g. 200 */
+ int throttle; /* Throttling, bytes/sec. <= 0 means no
+ * throttle */
+
+ time_t last_throttle_time; /* Last time throttled data was sent */
+ int last_throttle_bytes; /* Bytes sent this second */
+ pthread_mutex_t mutex; /* Used by mg_(un)lock_connection to ensure
+ * atomic transmissions for websockets */
+#if defined(USE_LUA) && defined(USE_WEBSOCKET)
+ void *lua_websocket_state; /* Lua_State for a websocket connection */
+#endif
+
+ void *tls_user_ptr; /* User defined pointer in thread local storage,
+ * for quick access */
+};
+
+
+/* Directory entry */
+struct de {
+ struct mg_connection *conn;
+ char *file_name;
+ struct mg_file_stat file;
+};
+
+
+#if defined(USE_WEBSOCKET)
+static int is_websocket_protocol(const struct mg_connection *conn);
+#else
+#define is_websocket_protocol(conn) (0)
+#endif
+
+
+#define mg_cry_internal(conn, fmt, ...) \
+ mg_cry_internal_wrap(conn, NULL, __func__, __LINE__, fmt, __VA_ARGS__)
+
+#define mg_cry_ctx_internal(ctx, fmt, ...) \
+ mg_cry_internal_wrap(NULL, ctx, __func__, __LINE__, fmt, __VA_ARGS__)
+
+static void mg_cry_internal_wrap(const struct mg_connection *conn,
+ struct mg_context *ctx,
+ const char *func,
+ unsigned line,
+ const char *fmt,
+ ...) PRINTF_ARGS(5, 6);
+
+
+#if !defined(NO_THREAD_NAME)
+#if defined(_WIN32) && defined(_MSC_VER)
+/* Set the thread name for debugging purposes in Visual Studio
+ * http://msdn.microsoft.com/en-us/library/xcb2z8hs.aspx
+ */
+#pragma pack(push, 8)
+typedef struct tagTHREADNAME_INFO {
+ DWORD dwType; /* Must be 0x1000. */
+ LPCSTR szName; /* Pointer to name (in user addr space). */
+ DWORD dwThreadID; /* Thread ID (-1=caller thread). */
+ DWORD dwFlags; /* Reserved for future use, must be zero. */
+} THREADNAME_INFO;
+#pragma pack(pop)
+
+#elif defined(__linux__)
+
+#include <sys/prctl.h>
+#include <sys/sendfile.h>
+#if defined(ALTERNATIVE_QUEUE)
+#include <sys/eventfd.h>
+#endif /* ALTERNATIVE_QUEUE */
+
+
+#if defined(ALTERNATIVE_QUEUE)
+
+static void *
+event_create(void)
+{
+ int evhdl = eventfd(0, EFD_CLOEXEC);
+ int *ret;
+
+ if (evhdl == -1) {
+ /* Linux uses -1 on error, Windows NULL. */
+ /* However, Linux does not return 0 on success either. */
+ return 0;
+ }
+
+ ret = (int *)mg_malloc(sizeof(int));
+ if (ret) {
+ *ret = evhdl;
+ } else {
+ (void)close(evhdl);
+ }
+
+ return (void *)ret;
+}
+
+
+static int
+event_wait(void *eventhdl)
+{
+ uint64_t u;
+ int evhdl, s;
+
+ if (!eventhdl) {
+ /* error */
+ return 0;
+ }
+ evhdl = *(int *)eventhdl;
+
+ s = (int)read(evhdl, &u, sizeof(u));
+ if (s != sizeof(u)) {
+ /* error */
+ return 0;
+ }
+ (void)u; /* the value is not required */
+ return 1;
+}
+
+
+static int
+event_signal(void *eventhdl)
+{
+ uint64_t u = 1;
+ int evhdl, s;
+
+ if (!eventhdl) {
+ /* error */
+ return 0;
+ }
+ evhdl = *(int *)eventhdl;
+
+ s = (int)write(evhdl, &u, sizeof(u));
+ if (s != sizeof(u)) {
+ /* error */
+ return 0;
+ }
+ return 1;
+}
+
+
+static void
+event_destroy(void *eventhdl)
+{
+ int evhdl;
+
+ if (!eventhdl) {
+ /* error */
+ return;
+ }
+ evhdl = *(int *)eventhdl;
+
+ close(evhdl);
+ mg_free(eventhdl);
+}
+
+
+#endif
+
+#endif
+
+
+#if !defined(__linux__) && !defined(_WIN32) && defined(ALTERNATIVE_QUEUE)
+
+struct posix_event {
+ pthread_mutex_t mutex;
+ pthread_cond_t cond;
+ int signaled;
+};
+
+
+static void *
+event_create(void)
+{
+ struct posix_event *ret = mg_malloc(sizeof(struct posix_event));
+ if (ret == 0) {
+ /* out of memory */
+ return 0;
+ }
+ if (0 != pthread_mutex_init(&(ret->mutex), NULL)) {
+ /* pthread mutex not available */
+ mg_free(ret);
+ return 0;
+ }
+ if (0 != pthread_cond_init(&(ret->cond), NULL)) {
+ /* pthread cond not available */
+ pthread_mutex_destroy(&(ret->mutex));
+ mg_free(ret);
+ return 0;
+ }
+ ret->signaled = 0;
+ return (void *)ret;
+}
+
+
+static int
+event_wait(void *eventhdl)
+{
+ struct posix_event *ev = (struct posix_event *)eventhdl;
+ pthread_mutex_lock(&(ev->mutex));
+ while (!ev->signaled) {
+ pthread_cond_wait(&(ev->cond), &(ev->mutex));
+ }
+ ev->signaled = 0;
+ pthread_mutex_unlock(&(ev->mutex));
+ return 1;
+}
+
+
+static int
+event_signal(void *eventhdl)
+{
+ struct posix_event *ev = (struct posix_event *)eventhdl;
+ pthread_mutex_lock(&(ev->mutex));
+ pthread_cond_signal(&(ev->cond));
+ ev->signaled = 1;
+ pthread_mutex_unlock(&(ev->mutex));
+ return 1;
+}
+
+
+static void
+event_destroy(void *eventhdl)
+{
+ struct posix_event *ev = (struct posix_event *)eventhdl;
+ pthread_cond_destroy(&(ev->cond));
+ pthread_mutex_destroy(&(ev->mutex));
+ mg_free(ev);
+}
+#endif
+
+
+static void
+mg_set_thread_name(const char *name)
+{
+ char threadName[16 + 1]; /* 16 = Max. thread length in Linux/OSX/.. */
+
+ mg_snprintf(
+ NULL, NULL, threadName, sizeof(threadName), "civetweb-%s", name);
+
+#if defined(_WIN32)
+#if defined(_MSC_VER)
+ /* Windows and Visual Studio Compiler */
+ __try {
+ THREADNAME_INFO info;
+ info.dwType = 0x1000;
+ info.szName = threadName;
+ info.dwThreadID = ~0U;
+ info.dwFlags = 0;
+
+ RaiseException(0x406D1388,
+ 0,
+ sizeof(info) / sizeof(ULONG_PTR),
+ (ULONG_PTR *)&info);
+ } __except (EXCEPTION_EXECUTE_HANDLER) {
+ }
+#elif defined(__MINGW32__)
+/* No option known to set thread name for MinGW */
+#endif
+#elif defined(_GNU_SOURCE) && defined(__GLIBC__) \
+ && ((__GLIBC__ > 2) || ((__GLIBC__ == 2) && (__GLIBC_MINOR__ >= 12)))
+/* pthread_setname_np first appeared in glibc in version 2.12*/
+#if defined(__MACH__)
+ /* OS X only current thread name can be changed */
+ (void)pthread_setname_np(threadName);
+#else
+ (void)pthread_setname_np(pthread_self(), threadName);
+#endif
+#elif defined(__linux__)
+ /* on linux we can use the old prctl function */
+ (void)prctl(PR_SET_NAME, threadName, 0, 0, 0);
+#endif
+}
+#else /* !defined(NO_THREAD_NAME) */
+void
+mg_set_thread_name(const char *threadName)
+{
+}
+#endif
+
+
+#if defined(MG_LEGACY_INTERFACE)
+const char **
+mg_get_valid_option_names(void)
+{
+ /* This function is deprecated. Use mg_get_valid_options instead. */
+ static const char
+ *data[2 * sizeof(config_options) / sizeof(config_options[0])] = {0};
+ int i;
+
+ for (i = 0; config_options[i].name != NULL; i++) {
+ data[i * 2] = config_options[i].name;
+ data[i * 2 + 1] = config_options[i].default_value;
+ }
+
+ return data;
+}
+#endif
+
+
+const struct mg_option *
+mg_get_valid_options(void)
+{
+ return config_options;
+}
+
+
+/* Do not open file (used in is_file_in_memory) */
+#define MG_FOPEN_MODE_NONE (0)
+
+/* Open file for read only access */
+#define MG_FOPEN_MODE_READ (1)
+
+/* Open file for writing, create and overwrite */
+#define MG_FOPEN_MODE_WRITE (2)
+
+/* Open file for writing, create and append */
+#define MG_FOPEN_MODE_APPEND (4)
+
+
+/* If a file is in memory, set all "stat" members and the membuf pointer of
+ * output filep and return 1, otherwise return 0 and don't modify anything.
+ */
+static int
+open_file_in_memory(const struct mg_connection *conn,
+ const char *path,
+ struct mg_file *filep,
+ int mode)
+{
+#if defined(MG_USE_OPEN_FILE)
+
+ size_t size = 0;
+ const char *buf = NULL;
+ if (!conn) {
+ return 0;
+ }
+
+ if ((mode != MG_FOPEN_MODE_NONE) && (mode != MG_FOPEN_MODE_READ)) {
+ return 0;
+ }
+
+ if (conn->phys_ctx->callbacks.open_file) {
+ buf = conn->phys_ctx->callbacks.open_file(conn, path, &size);
+ if (buf != NULL) {
+ if (filep == NULL) {
+ /* This is a file in memory, but we cannot store the
+ * properties
+ * now.
+ * Called from "is_file_in_memory" function. */
+ return 1;
+ }
+
+ /* NOTE: override filep->size only on success. Otherwise, it
+ * might
+ * break constructs like if (!mg_stat() || !mg_fopen()) ... */
+ filep->access.membuf = buf;
+ filep->access.fp = NULL;
+
+ /* Size was set by the callback */
+ filep->stat.size = size;
+
+ /* Assume the data may change during runtime by setting
+ * last_modified = now */
+ filep->stat.last_modified = time(NULL);
+
+ filep->stat.is_directory = 0;
+ filep->stat.is_gzipped = 0;
+ }
+ }
+
+ return (buf != NULL);
+
+#else
+ (void)conn;
+ (void)path;
+ (void)filep;
+ (void)mode;
+
+ return 0;
+
+#endif
+}
+
+
+static int
+is_file_in_memory(const struct mg_connection *conn, const char *path)
+{
+ return open_file_in_memory(conn, path, NULL, MG_FOPEN_MODE_NONE);
+}
+
+
+static int
+is_file_opened(const struct mg_file_access *fileacc)
+{
+ if (!fileacc) {
+ return 0;
+ }
+
+#if defined(MG_USE_OPEN_FILE)
+ return (fileacc->membuf != NULL) || (fileacc->fp != NULL);
+#else
+ return (fileacc->fp != NULL);
+#endif
+}
+
+
+static int mg_stat(const struct mg_connection *conn,
+ const char *path,
+ struct mg_file_stat *filep);
+
+
+/* mg_fopen will open a file either in memory or on the disk.
+ * The input parameter path is a string in UTF-8 encoding.
+ * The input parameter mode is MG_FOPEN_MODE_*
+ * On success, either fp or membuf will be set in the output
+ * struct file. All status members will also be set.
+ * The function returns 1 on success, 0 on error. */
+static int
+mg_fopen(const struct mg_connection *conn,
+ const char *path,
+ int mode,
+ struct mg_file *filep)
+{
+ int found;
+
+ if (!filep) {
+ return 0;
+ }
+ filep->access.fp = NULL;
+#if defined(MG_USE_OPEN_FILE)
+ filep->access.membuf = NULL;
+#endif
+
+ if (!is_file_in_memory(conn, path)) {
+
+ /* filep is initialized in mg_stat: all fields with memset to,
+ * some fields like size and modification date with values */
+ found = mg_stat(conn, path, &(filep->stat));
+
+ if ((mode == MG_FOPEN_MODE_READ) && (!found)) {
+ /* file does not exist and will not be created */
+ return 0;
+ }
+
+#if defined(_WIN32)
+ {
+ wchar_t wbuf[W_PATH_MAX];
+ path_to_unicode(conn, path, wbuf, ARRAY_SIZE(wbuf));
+ switch (mode) {
+ case MG_FOPEN_MODE_READ:
+ filep->access.fp = _wfopen(wbuf, L"rb");
+ break;
+ case MG_FOPEN_MODE_WRITE:
+ filep->access.fp = _wfopen(wbuf, L"wb");
+ break;
+ case MG_FOPEN_MODE_APPEND:
+ filep->access.fp = _wfopen(wbuf, L"ab");
+ break;
+ }
+ }
+#else
+ /* Linux et al already use unicode. No need to convert. */
+ switch (mode) {
+ case MG_FOPEN_MODE_READ:
+ filep->access.fp = fopen(path, "r");
+ break;
+ case MG_FOPEN_MODE_WRITE:
+ filep->access.fp = fopen(path, "w");
+ break;
+ case MG_FOPEN_MODE_APPEND:
+ filep->access.fp = fopen(path, "a");
+ break;
+ }
+
+#endif
+ if (!found) {
+ /* File did not exist before fopen was called.
+ * Maybe it has been created now. Get stat info
+ * like creation time now. */
+ found = mg_stat(conn, path, &(filep->stat));
+ (void)found;
+ }
+
+ /* file is on disk */
+ return (filep->access.fp != NULL);
+
+ } else {
+#if defined(MG_USE_OPEN_FILE)
+ /* is_file_in_memory returned true */
+ if (open_file_in_memory(conn, path, filep, mode)) {
+ /* file is in memory */
+ return (filep->access.membuf != NULL);
+ }
+#endif
+ }
+
+ /* Open failed */
+ return 0;
+}
+
+
+/* return 0 on success, just like fclose */
+static int
+mg_fclose(struct mg_file_access *fileacc)
+{
+ int ret = -1;
+ if (fileacc != NULL) {
+ if (fileacc->fp != NULL) {
+ ret = fclose(fileacc->fp);
+#if defined(MG_USE_OPEN_FILE)
+ } else if (fileacc->membuf != NULL) {
+ ret = 0;
+#endif
+ }
+ /* reset all members of fileacc */
+ memset(fileacc, 0, sizeof(*fileacc));
+ }
+ return ret;
+}
+
+
+static void
+mg_strlcpy(register char *dst, register const char *src, size_t n)
+{
+ for (; *src != '\0' && n > 1; n--) {
+ *dst++ = *src++;
+ }
+ *dst = '\0';
+}
+
+
+static int
+lowercase(const char *s)
+{
+ return tolower((unsigned char)*s);
+}
+
+
+int
+mg_strncasecmp(const char *s1, const char *s2, size_t len)
+{
+ int diff = 0;
+
+ if (len > 0) {
+ do {
+ diff = lowercase(s1++) - lowercase(s2++);
+ } while (diff == 0 && s1[-1] != '\0' && --len > 0);
+ }
+
+ return diff;
+}
+
+
+int
+mg_strcasecmp(const char *s1, const char *s2)
+{
+ int diff;
+
+ do {
+ diff = lowercase(s1++) - lowercase(s2++);
+ } while (diff == 0 && s1[-1] != '\0');
+
+ return diff;
+}
+
+
+static char *
+mg_strndup_ctx(const char *ptr, size_t len, struct mg_context *ctx)
+{
+ char *p;
+ (void)ctx; /* Avoid Visual Studio warning if USE_SERVER_STATS is not
+ * defined */
+
+ if ((p = (char *)mg_malloc_ctx(len + 1, ctx)) != NULL) {
+ mg_strlcpy(p, ptr, len + 1);
+ }
+
+ return p;
+}
+
+
+static char *
+mg_strdup_ctx(const char *str, struct mg_context *ctx)
+{
+ return mg_strndup_ctx(str, strlen(str), ctx);
+}
+
+static char *
+mg_strdup(const char *str)
+{
+ return mg_strndup_ctx(str, strlen(str), NULL);
+}
+
+
+static const char *
+mg_strcasestr(const char *big_str, const char *small_str)
+{
+ size_t i, big_len = strlen(big_str), small_len = strlen(small_str);
+
+ if (big_len >= small_len) {
+ for (i = 0; i <= (big_len - small_len); i++) {
+ if (mg_strncasecmp(big_str + i, small_str, small_len) == 0) {
+ return big_str + i;
+ }
+ }
+ }
+
+ return NULL;
+}
+
+
+/* Return null terminated string of given maximum length.
+ * Report errors if length is exceeded. */
+static void
+mg_vsnprintf(const struct mg_connection *conn,
+ int *truncated,
+ char *buf,
+ size_t buflen,
+ const char *fmt,
+ va_list ap)
+{
+ int n, ok;
+
+ if (buflen == 0) {
+ if (truncated) {
+ *truncated = 1;
+ }
+ return;
+ }
+
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wformat-nonliteral"
+/* Using fmt as a non-literal is intended here, since it is mostly called
+ * indirectly by mg_snprintf */
+#endif
+
+ n = (int)vsnprintf_impl(buf, buflen, fmt, ap);
+ ok = (n >= 0) && ((size_t)n < buflen);
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
+ if (ok) {
+ if (truncated) {
+ *truncated = 0;
+ }
+ } else {
+ if (truncated) {
+ *truncated = 1;
+ }
+ mg_cry_internal(conn,
+ "truncating vsnprintf buffer: [%.*s]",
+ (int)((buflen > 200) ? 200 : (buflen - 1)),
+ buf);
+ n = (int)buflen - 1;
+ }
+ buf[n] = '\0';
+}
+
+
+static void
+mg_snprintf(const struct mg_connection *conn,
+ int *truncated,
+ char *buf,
+ size_t buflen,
+ const char *fmt,
+ ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ mg_vsnprintf(conn, truncated, buf, buflen, fmt, ap);
+ va_end(ap);
+}
+
+
+static int
+get_option_index(const char *name)
+{
+ int i;
+
+ for (i = 0; config_options[i].name != NULL; i++) {
+ if (strcmp(config_options[i].name, name) == 0) {
+ return i;
+ }
+ }
+ return -1;
+}
+
+
+const char *
+mg_get_option(const struct mg_context *ctx, const char *name)
+{
+ int i;
+ if ((i = get_option_index(name)) == -1) {
+ return NULL;
+ } else if (!ctx || ctx->dd.config[i] == NULL) {
+ return "";
+ } else {
+ return ctx->dd.config[i];
+ }
+}
+
+#define mg_get_option DO_NOT_USE_THIS_FUNCTION_INTERNALLY__access_directly
+
+struct mg_context *
+mg_get_context(const struct mg_connection *conn)
+{
+ return (conn == NULL) ? (struct mg_context *)NULL : (conn->phys_ctx);
+}
+
+
+void *
+mg_get_user_data(const struct mg_context *ctx)
+{
+ return (ctx == NULL) ? NULL : ctx->user_data;
+}
+
+
+void *
+mg_get_thread_pointer(const struct mg_connection *conn)
+{
+ /* both methods should return the same pointer */
+ if (conn) {
+ /* quick access, in case conn is known */
+ return conn->tls_user_ptr;
+ } else {
+ /* otherwise get pointer from thread local storage (TLS) */
+ struct mg_workerTLS *tls =
+ (struct mg_workerTLS *)pthread_getspecific(sTlsKey);
+ return tls->user_ptr;
+ }
+}
+
+
+void
+mg_set_user_connection_data(struct mg_connection *conn, void *data)
+{
+ if (conn != NULL) {
+ conn->request_info.conn_data = data;
+ }
+}
+
+
+void *
+mg_get_user_connection_data(const struct mg_connection *conn)
+{
+ if (conn != NULL) {
+ return conn->request_info.conn_data;
+ }
+ return NULL;
+}
+
+
+#if defined(MG_LEGACY_INTERFACE)
+/* Deprecated: Use mg_get_server_ports instead. */
+size_t
+mg_get_ports(const struct mg_context *ctx, size_t size, int *ports, int *ssl)
+{
+ size_t i;
+ if (!ctx) {
+ return 0;
+ }
+ for (i = 0; i < size && i < ctx->num_listening_sockets; i++) {
+ ssl[i] = ctx->listening_sockets[i].is_ssl;
+ ports[i] =
+#if defined(USE_IPV6)
+ (ctx->listening_sockets[i].lsa.sa.sa_family == AF_INET6)
+ ? ntohs(ctx->listening_sockets[i].lsa.sin6.sin6_port)
+ :
+#endif
+ ntohs(ctx->listening_sockets[i].lsa.sin.sin_port);
+ }
+ return i;
+}
+#endif
+
+
+int
+mg_get_server_ports(const struct mg_context *ctx,
+ int size,
+ struct mg_server_port *ports)
+{
+ int i, cnt = 0;
+
+ if (size <= 0) {
+ return -1;
+ }
+ memset(ports, 0, sizeof(*ports) * (size_t)size);
+ if (!ctx) {
+ return -1;
+ }
+ if (!ctx->listening_sockets) {
+ return -1;
+ }
+
+ for (i = 0; (i < size) && (i < (int)ctx->num_listening_sockets); i++) {
+
+ ports[cnt].port =
+#if defined(USE_IPV6)
+ (ctx->listening_sockets[i].lsa.sa.sa_family == AF_INET6)
+ ? ntohs(ctx->listening_sockets[i].lsa.sin6.sin6_port)
+ :
+#endif
+ ntohs(ctx->listening_sockets[i].lsa.sin.sin_port);
+ ports[cnt].is_ssl = ctx->listening_sockets[i].is_ssl;
+ ports[cnt].is_redirect = ctx->listening_sockets[i].ssl_redir;
+
+ if (ctx->listening_sockets[i].lsa.sa.sa_family == AF_INET) {
+ /* IPv4 */
+ ports[cnt].protocol = 1;
+ cnt++;
+ } else if (ctx->listening_sockets[i].lsa.sa.sa_family == AF_INET6) {
+ /* IPv6 */
+ ports[cnt].protocol = 3;
+ cnt++;
+ }
+ }
+
+ return cnt;
+}
+
+
+static void
+sockaddr_to_string(char *buf, size_t len, const union usa *usa)
+{
+ buf[0] = '\0';
+
+ if (!usa) {
+ return;
+ }
+
+ if (usa->sa.sa_family == AF_INET) {
+ getnameinfo(&usa->sa,
+ sizeof(usa->sin),
+ buf,
+ (unsigned)len,
+ NULL,
+ 0,
+ NI_NUMERICHOST);
+ }
+#if defined(USE_IPV6)
+ else if (usa->sa.sa_family == AF_INET6) {
+ getnameinfo(&usa->sa,
+ sizeof(usa->sin6),
+ buf,
+ (unsigned)len,
+ NULL,
+ 0,
+ NI_NUMERICHOST);
+ }
+#endif
+}
+
+
+/* Convert time_t to a string. According to RFC2616, Sec 14.18, this must be
+ * included in all responses other than 100, 101, 5xx. */
+static void
+gmt_time_string(char *buf, size_t buf_len, time_t *t)
+{
+#if !defined(REENTRANT_TIME)
+ struct tm *tm;
+
+ tm = ((t != NULL) ? gmtime(t) : NULL);
+ if (tm != NULL) {
+#else
+ struct tm _tm;
+ struct tm *tm = &_tm;
+
+ if (t != NULL) {
+ gmtime_r(t, tm);
+#endif
+ strftime(buf, buf_len, "%a, %d %b %Y %H:%M:%S GMT", tm);
+ } else {
+ mg_strlcpy(buf, "Thu, 01 Jan 1970 00:00:00 GMT", buf_len);
+ buf[buf_len - 1] = '\0';
+ }
+}
+
+
+/* difftime for struct timespec. Return value is in seconds. */
+static double
+mg_difftimespec(const struct timespec *ts_now, const struct timespec *ts_before)
+{
+ return (double)(ts_now->tv_nsec - ts_before->tv_nsec) * 1.0E-9
+ + (double)(ts_now->tv_sec - ts_before->tv_sec);
+}
+
+
+#if defined(MG_EXTERNAL_FUNCTION_mg_cry_internal_impl)
+static void mg_cry_internal_impl(const struct mg_connection *conn,
+ const char *func,
+ unsigned line,
+ const char *fmt,
+ va_list ap);
+#include "external_mg_cry_internal_impl.inl"
+#else
+
+/* Print error message to the opened error log stream. */
+static void
+mg_cry_internal_impl(const struct mg_connection *conn,
+ const char *func,
+ unsigned line,
+ const char *fmt,
+ va_list ap)
+{
+ char buf[MG_BUF_LEN], src_addr[IP_ADDR_STR_LEN];
+ struct mg_file fi;
+ time_t timestamp;
+
+ /* Unused, in the RELEASE build */
+ (void)func;
+ (void)line;
+
+#if defined(GCC_DIAGNOSTIC)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"
+#endif
+
+ IGNORE_UNUSED_RESULT(vsnprintf_impl(buf, sizeof(buf), fmt, ap));
+
+#if defined(GCC_DIAGNOSTIC)
+#pragma GCC diagnostic pop
+#endif
+
+ buf[sizeof(buf) - 1] = 0;
+
+ DEBUG_TRACE("mg_cry called from %s:%u: %s", func, line, buf);
+
+ if (!conn) {
+ puts(buf);
+ return;
+ }
+
+ /* Do not lock when getting the callback value, here and below.
+ * I suppose this is fine, since function cannot disappear in the
+ * same way string option can. */
+ if ((conn->phys_ctx->callbacks.log_message == NULL)
+ || (conn->phys_ctx->callbacks.log_message(conn, buf) == 0)) {
+
+ if (conn->dom_ctx->config[ERROR_LOG_FILE] != NULL) {
+ if (mg_fopen(conn,
+ conn->dom_ctx->config[ERROR_LOG_FILE],
+ MG_FOPEN_MODE_APPEND,
+ &fi)
+ == 0) {
+ fi.access.fp = NULL;
+ }
+ } else {
+ fi.access.fp = NULL;
+ }
+
+ if (fi.access.fp != NULL) {
+ flockfile(fi.access.fp);
+ timestamp = time(NULL);
+
+ sockaddr_to_string(src_addr, sizeof(src_addr), &conn->client.rsa);
+ fprintf(fi.access.fp,
+ "[%010lu] [error] [client %s] ",
+ (unsigned long)timestamp,
+ src_addr);
+
+ if (conn->request_info.request_method != NULL) {
+ fprintf(fi.access.fp,
+ "%s %s: ",
+ conn->request_info.request_method,
+ conn->request_info.request_uri
+ ? conn->request_info.request_uri
+ : "");
+ }
+
+ fprintf(fi.access.fp, "%s", buf);
+ fputc('\n', fi.access.fp);
+ fflush(fi.access.fp);
+ funlockfile(fi.access.fp);
+ (void)mg_fclose(&fi.access); /* Ignore errors. We can't call
+ * mg_cry here anyway ;-) */
+ }
+ }
+}
+
+#endif /* Externally provided function */
+
+
+/* Construct fake connection structure. Used for logging, if connection
+ * is not applicable at the moment of logging. */
+static struct mg_connection *
+fake_connection(struct mg_connection *fc, struct mg_context *ctx)
+{
+ static const struct mg_connection conn_zero = {0};
+ *fc = conn_zero;
+ fc->phys_ctx = ctx;
+ fc->dom_ctx = &(ctx->dd);
+ return fc;
+}
+
+
+static void
+mg_cry_internal_wrap(const struct mg_connection *conn,
+ struct mg_context *ctx,
+ const char *func,
+ unsigned line,
+ const char *fmt,
+ ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ if (!conn && ctx) {
+ struct mg_connection fc;
+ mg_cry_internal_impl(fake_connection(&fc, ctx), func, line, fmt, ap);
+ } else {
+ mg_cry_internal_impl(conn, func, line, fmt, ap);
+ }
+ va_end(ap);
+}
+
+
+void
+mg_cry(const struct mg_connection *conn, const char *fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ mg_cry_internal_impl(conn, "user", 0, fmt, ap);
+ va_end(ap);
+}
+
+
+#define mg_cry DO_NOT_USE_THIS_FUNCTION__USE_mg_cry_internal
+
+
+const char *
+mg_version(void)
+{
+ return CIVETWEB_VERSION;
+}
+
+
+const struct mg_request_info *
+mg_get_request_info(const struct mg_connection *conn)
+{
+ if (!conn) {
+ return NULL;
+ }
+#if defined(MG_ALLOW_USING_GET_REQUEST_INFO_FOR_RESPONSE)
+ if (conn->connection_type == CONNECTION_TYPE_RESPONSE) {
+ char txt[16];
+ struct mg_workerTLS *tls =
+ (struct mg_workerTLS *)pthread_getspecific(sTlsKey);
+
+ sprintf(txt, "%03i", conn->response_info.status_code);
+ if (strlen(txt) == 3) {
+ memcpy(tls->txtbuf, txt, 4);
+ } else {
+ strcpy(tls->txtbuf, "ERR");
+ }
+
+ ((struct mg_connection *)conn)->request_info.local_uri =
+ ((struct mg_connection *)conn)->request_info.request_uri =
+ tls->txtbuf; /* use thread safe buffer */
+
+ ((struct mg_connection *)conn)->request_info.num_headers =
+ conn->response_info.num_headers;
+ memcpy(((struct mg_connection *)conn)->request_info.http_headers,
+ conn->response_info.http_headers,
+ sizeof(conn->response_info.http_headers));
+ } else
+#endif
+ if (conn->connection_type != CONNECTION_TYPE_REQUEST) {
+ return NULL;
+ }
+ return &conn->request_info;
+}
+
+
+const struct mg_response_info *
+mg_get_response_info(const struct mg_connection *conn)
+{
+ if (!conn) {
+ return NULL;
+ }
+ if (conn->connection_type != CONNECTION_TYPE_RESPONSE) {
+ return NULL;
+ }
+ return &conn->response_info;
+}
+
+
+static const char *
+get_proto_name(const struct mg_connection *conn)
+{
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunreachable-code"
+/* Depending on USE_WEBSOCKET and NO_SSL, some oft the protocols might be
+ * not supported. Clang raises an "unreachable code" warning for parts of ?:
+ * unreachable, but splitting into four different #ifdef clauses here is more
+ * complicated.
+ */
+#endif
+
+ const struct mg_request_info *ri = &conn->request_info;
+
+ const char *proto =
+ (is_websocket_protocol(conn) ? (ri->is_ssl ? "wss" : "ws")
+ : (ri->is_ssl ? "https" : "http"));
+
+ return proto;
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+}
+
+
+int
+mg_get_request_link(const struct mg_connection *conn, char *buf, size_t buflen)
+{
+ if ((buflen < 1) || (buf == 0) || (conn == 0)) {
+ return -1;
+ } else {
+
+ int truncated = 0;
+ const struct mg_request_info *ri = &conn->request_info;
+
+ const char *proto = get_proto_name(conn);
+
+ if (ri->local_uri == NULL) {
+ return -1;
+ }
+
+ if ((ri->request_uri != NULL)
+ && (0 != strcmp(ri->local_uri, ri->request_uri))) {
+ /* The request uri is different from the local uri.
+ * This is usually if an absolute URI, including server
+ * name has been provided. */
+ mg_snprintf(conn,
+ &truncated,
+ buf,
+ buflen,
+ "%s://%s",
+ proto,
+ ri->request_uri);
+ if (truncated) {
+ return -1;
+ }
+ return 0;
+
+ } else {
+
+ /* The common case is a relative URI, so we have to
+ * construct an absolute URI from server name and port */
+
+#if defined(USE_IPV6)
+ int is_ipv6 = (conn->client.lsa.sa.sa_family == AF_INET6);
+ int port = is_ipv6 ? htons(conn->client.lsa.sin6.sin6_port)
+ : htons(conn->client.lsa.sin.sin_port);
+#else
+ int port = htons(conn->client.lsa.sin.sin_port);
+#endif
+ int def_port = ri->is_ssl ? 443 : 80;
+ int auth_domain_check_enabled =
+ conn->dom_ctx->config[ENABLE_AUTH_DOMAIN_CHECK]
+ && (!mg_strcasecmp(
+ conn->dom_ctx->config[ENABLE_AUTH_DOMAIN_CHECK], "yes"));
+ const char *server_domain =
+ conn->dom_ctx->config[AUTHENTICATION_DOMAIN];
+
+ char portstr[16];
+ char server_ip[48];
+
+ if (port != def_port) {
+ sprintf(portstr, ":%u", (unsigned)port);
+ } else {
+ portstr[0] = 0;
+ }
+
+ if (!auth_domain_check_enabled || !server_domain) {
+
+ sockaddr_to_string(server_ip,
+ sizeof(server_ip),
+ &conn->client.lsa);
+
+ server_domain = server_ip;
+ }
+
+ mg_snprintf(conn,
+ &truncated,
+ buf,
+ buflen,
+ "%s://%s%s%s",
+ proto,
+ server_domain,
+ portstr,
+ ri->local_uri);
+ if (truncated) {
+ return -1;
+ }
+ return 0;
+ }
+ }
+}
+
+/* Skip the characters until one of the delimiters characters found.
+ * 0-terminate resulting word. Skip the delimiter and following whitespaces.
+ * Advance pointer to buffer to the next word. Return found 0-terminated
+ * word.
+ * Delimiters can be quoted with quotechar. */
+static char *
+skip_quoted(char **buf,
+ const char *delimiters,
+ const char *whitespace,
+ char quotechar)
+{
+ char *p, *begin_word, *end_word, *end_whitespace;
+
+ begin_word = *buf;
+ end_word = begin_word + strcspn(begin_word, delimiters);
+
+ /* Check for quotechar */
+ if (end_word > begin_word) {
+ p = end_word - 1;
+ while (*p == quotechar) {
+ /* While the delimiter is quoted, look for the next delimiter.
+ */
+ /* This happens, e.g., in calls from parse_auth_header,
+ * if the user name contains a " character. */
+
+ /* If there is anything beyond end_word, copy it. */
+ if (*end_word != '\0') {
+ size_t end_off = strcspn(end_word + 1, delimiters);
+ memmove(p, end_word, end_off + 1);
+ p += end_off; /* p must correspond to end_word - 1 */
+ end_word += end_off + 1;
+ } else {
+ *p = '\0';
+ break;
+ }
+ }
+ for (p++; p < end_word; p++) {
+ *p = '\0';
+ }
+ }
+
+ if (*end_word == '\0') {
+ *buf = end_word;
+ } else {
+
+#if defined(GCC_DIAGNOSTIC)
+/* Disable spurious conversion warning for GCC */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wsign-conversion"
+#endif /* defined(GCC_DIAGNOSTIC) */
+
+ end_whitespace = end_word + strspn(&end_word[1], whitespace) + 1;
+
+#if defined(GCC_DIAGNOSTIC)
+#pragma GCC diagnostic pop
+#endif /* defined(GCC_DIAGNOSTIC) */
+
+ for (p = end_word; p < end_whitespace; p++) {
+ *p = '\0';
+ }
+
+ *buf = end_whitespace;
+ }
+
+ return begin_word;
+}
+
+
+/* Return HTTP header value, or NULL if not found. */
+static const char *
+get_header(const struct mg_header *hdr, int num_hdr, const char *name)
+{
+ int i;
+ for (i = 0; i < num_hdr; i++) {
+ if (!mg_strcasecmp(name, hdr[i].name)) {
+ return hdr[i].value;
+ }
+ }
+
+ return NULL;
+}
+
+
+#if defined(USE_WEBSOCKET)
+/* Retrieve requested HTTP header multiple values, and return the number of
+ * found occurrences */
+static int
+get_req_headers(const struct mg_request_info *ri,
+ const char *name,
+ const char **output,
+ int output_max_size)
+{
+ int i;
+ int cnt = 0;
+ if (ri) {
+ for (i = 0; i < ri->num_headers && cnt < output_max_size; i++) {
+ if (!mg_strcasecmp(name, ri->http_headers[i].name)) {
+ output[cnt++] = ri->http_headers[i].value;
+ }
+ }
+ }
+ return cnt;
+}
+#endif
+
+
+const char *
+mg_get_header(const struct mg_connection *conn, const char *name)
+{
+ if (!conn) {
+ return NULL;
+ }
+
+ if (conn->connection_type == CONNECTION_TYPE_REQUEST) {
+ return get_header(conn->request_info.http_headers,
+ conn->request_info.num_headers,
+ name);
+ }
+ if (conn->connection_type == CONNECTION_TYPE_RESPONSE) {
+ return get_header(conn->response_info.http_headers,
+ conn->response_info.num_headers,
+ name);
+ }
+ return NULL;
+}
+
+
+static const char *
+get_http_version(const struct mg_connection *conn)
+{
+ if (!conn) {
+ return NULL;
+ }
+
+ if (conn->connection_type == CONNECTION_TYPE_REQUEST) {
+ return conn->request_info.http_version;
+ }
+ if (conn->connection_type == CONNECTION_TYPE_RESPONSE) {
+ return conn->response_info.http_version;
+ }
+ return NULL;
+}
+
+
+/* A helper function for traversing a comma separated list of values.
+ * It returns a list pointer shifted to the next value, or NULL if the end
+ * of the list found.
+ * Value is stored in val vector. If value has form "x=y", then eq_val
+ * vector is initialized to point to the "y" part, and val vector length
+ * is adjusted to point only to "x". */
+static const char *
+next_option(const char *list, struct vec *val, struct vec *eq_val)
+{
+ int end;
+
+reparse:
+ if (val == NULL || list == NULL || *list == '\0') {
+ /* End of the list */
+ return NULL;
+ }
+
+ /* Skip over leading LWS */
+ while (*list == ' ' || *list == '\t')
+ list++;
+
+ val->ptr = list;
+ if ((list = strchr(val->ptr, ',')) != NULL) {
+ /* Comma found. Store length and shift the list ptr */
+ val->len = ((size_t)(list - val->ptr));
+ list++;
+ } else {
+ /* This value is the last one */
+ list = val->ptr + strlen(val->ptr);
+ val->len = ((size_t)(list - val->ptr));
+ }
+
+ /* Adjust length for trailing LWS */
+ end = (int)val->len - 1;
+ while (end >= 0 && ((val->ptr[end] == ' ') || (val->ptr[end] == '\t')))
+ end--;
+ val->len = (size_t)(end) + (size_t)(1);
+
+ if (val->len == 0) {
+ /* Ignore any empty entries. */
+ goto reparse;
+ }
+
+ if (eq_val != NULL) {
+ /* Value has form "x=y", adjust pointers and lengths
+ * so that val points to "x", and eq_val points to "y". */
+ eq_val->len = 0;
+ eq_val->ptr = (const char *)memchr(val->ptr, '=', val->len);
+ if (eq_val->ptr != NULL) {
+ eq_val->ptr++; /* Skip over '=' character */
+ eq_val->len = ((size_t)(val->ptr - eq_val->ptr)) + val->len;
+ val->len = ((size_t)(eq_val->ptr - val->ptr)) - 1;
+ }
+ }
+
+ return list;
+}
+
+
+/* A helper function for checking if a comma separated list of values
+ * contains
+ * the given option (case insensitvely).
+ * 'header' can be NULL, in which case false is returned. */
+static int
+header_has_option(const char *header, const char *option)
+{
+ struct vec opt_vec;
+ struct vec eq_vec;
+
+ DEBUG_ASSERT(option != NULL);
+ DEBUG_ASSERT(option[0] != '\0');
+
+ while ((header = next_option(header, &opt_vec, &eq_vec)) != NULL) {
+ if (mg_strncasecmp(option, opt_vec.ptr, opt_vec.len) == 0)
+ return 1;
+ }
+
+ return 0;
+}
+
+
+/* Perform case-insensitive match of string against pattern */
+static ptrdiff_t
+match_prefix(const char *pattern, size_t pattern_len, const char *str)
+{
+ const char *or_str;
+ ptrdiff_t i, j, len, res;
+
+ if ((or_str = (const char *)memchr(pattern, '|', pattern_len)) != NULL) {
+ res = match_prefix(pattern, (size_t)(or_str - pattern), str);
+ return (res > 0) ? res
+ : match_prefix(or_str + 1,
+ (size_t)((pattern + pattern_len)
+ - (or_str + 1)),
+ str);
+ }
+
+ for (i = 0, j = 0; (i < (ptrdiff_t)pattern_len); i++, j++) {
+ if ((pattern[i] == '?') && (str[j] != '\0')) {
+ continue;
+ } else if (pattern[i] == '$') {
+ return (str[j] == '\0') ? j : -1;
+ } else if (pattern[i] == '*') {
+ i++;
+ if (pattern[i] == '*') {
+ i++;
+ len = strlen(str + j);
+ } else {
+ len = strcspn(str + j, "/");
+ }
+ if (i == (ptrdiff_t)pattern_len) {
+ return j + len;
+ }
+ do {
+ res = match_prefix(pattern + i, pattern_len - i, str + j + len);
+ } while (res == -1 && len-- > 0);
+ return (res == -1) ? -1 : j + res + len;
+ } else if (lowercase(&pattern[i]) != lowercase(&str[j])) {
+ return -1;
+ }
+ }
+ return (ptrdiff_t)j;
+}
+
+
+/* HTTP 1.1 assumes keep alive if "Connection:" header is not set
+ * This function must tolerate situations when connection info is not
+ * set up, for example if request parsing failed. */
+static int
+should_keep_alive(const struct mg_connection *conn)
+{
+ const char *http_version;
+ const char *header;
+
+ /* First satisfy needs of the server */
+ if ((conn == NULL) || conn->must_close) {
+ /* Close, if civetweb framework needs to close */
+ return 0;
+ }
+
+ if (mg_strcasecmp(conn->dom_ctx->config[ENABLE_KEEP_ALIVE], "yes") != 0) {
+ /* Close, if keep alive is not enabled */
+ return 0;
+ }
+
+ /* Check explicit wish of the client */
+ header = mg_get_header(conn, "Connection");
+ if (header) {
+ /* If there is a connection header from the client, obey */
+ if (header_has_option(header, "keep-alive")) {
+ return 1;
+ }
+ return 0;
+ }
+
+ /* Use default of the standard */
+ http_version = get_http_version(conn);
+ if (http_version && (0 == strcmp(http_version, "1.1"))) {
+ /* HTTP 1.1 default is keep alive */
+ return 1;
+ }
+
+ /* HTTP 1.0 (and earlier) default is to close the connection */
+ return 0;
+}
+
+
+static int
+should_decode_url(const struct mg_connection *conn)
+{
+ if (!conn || !conn->dom_ctx) {
+ return 0;
+ }
+
+ return (mg_strcasecmp(conn->dom_ctx->config[DECODE_URL], "yes") == 0);
+}
+
+
+static const char *
+suggest_connection_header(const struct mg_connection *conn)
+{
+ return should_keep_alive(conn) ? "keep-alive" : "close";
+}
+
+
+static int
+send_no_cache_header(struct mg_connection *conn)
+{
+ /* Send all current and obsolete cache opt-out directives. */
+ return mg_printf(conn,
+ "Cache-Control: no-cache, no-store, "
+ "must-revalidate, private, max-age=0\r\n"
+ "Pragma: no-cache\r\n"
+ "Expires: 0\r\n");
+}
+
+
+static int
+send_static_cache_header(struct mg_connection *conn)
+{
+#if !defined(NO_CACHING)
+ /* Read the server config to check how long a file may be cached.
+ * The configuration is in seconds. */
+ int max_age = atoi(conn->dom_ctx->config[STATIC_FILE_MAX_AGE]);
+ if (max_age <= 0) {
+ /* 0 means "do not cache". All values <0 are reserved
+ * and may be used differently in the future. */
+ /* If a file should not be cached, do not only send
+ * max-age=0, but also pragmas and Expires headers. */
+ return send_no_cache_header(conn);
+ }
+
+ /* Use "Cache-Control: max-age" instead of "Expires" header.
+ * Reason: see https://www.mnot.net/blog/2007/05/15/expires_max-age */
+ /* See also https://www.mnot.net/cache_docs/ */
+ /* According to RFC 2616, Section 14.21, caching times should not exceed
+ * one year. A year with 365 days corresponds to 31536000 seconds, a
+ * leap
+ * year to 31622400 seconds. For the moment, we just send whatever has
+ * been configured, still the behavior for >1 year should be considered
+ * as undefined. */
+ return mg_printf(conn, "Cache-Control: max-age=%u\r\n", (unsigned)max_age);
+#else /* NO_CACHING */
+ return send_no_cache_header(conn);
+#endif /* !NO_CACHING */
+}
+
+
+static int
+send_additional_header(struct mg_connection *conn)
+{
+ int i = 0;
+ const char *header = conn->dom_ctx->config[ADDITIONAL_HEADER];
+
+#if !defined(NO_SSL)
+ if (conn->dom_ctx->config[STRICT_HTTPS_MAX_AGE]) {
+ int max_age = atoi(conn->dom_ctx->config[STRICT_HTTPS_MAX_AGE]);
+ if (max_age >= 0) {
+ i += mg_printf(conn,
+ "Strict-Transport-Security: max-age=%u\r\n",
+ (unsigned)max_age);
+ }
+ }
+#endif
+
+ if (header && header[0]) {
+ i += mg_printf(conn, "%s\r\n", header);
+ }
+
+ return i;
+}
+
+
+static void handle_file_based_request(struct mg_connection *conn,
+ const char *path,
+ struct mg_file *filep);
+
+
+const char *
+mg_get_response_code_text(const struct mg_connection *conn, int response_code)
+{
+ /* See IANA HTTP status code assignment:
+ * http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
+ */
+
+ switch (response_code) {
+ /* RFC2616 Section 10.1 - Informational 1xx */
+ case 100:
+ return "Continue"; /* RFC2616 Section 10.1.1 */
+ case 101:
+ return "Switching Protocols"; /* RFC2616 Section 10.1.2 */
+ case 102:
+ return "Processing"; /* RFC2518 Section 10.1 */
+
+ /* RFC2616 Section 10.2 - Successful 2xx */
+ case 200:
+ return "OK"; /* RFC2616 Section 10.2.1 */
+ case 201:
+ return "Created"; /* RFC2616 Section 10.2.2 */
+ case 202:
+ return "Accepted"; /* RFC2616 Section 10.2.3 */
+ case 203:
+ return "Non-Authoritative Information"; /* RFC2616 Section 10.2.4 */
+ case 204:
+ return "No Content"; /* RFC2616 Section 10.2.5 */
+ case 205:
+ return "Reset Content"; /* RFC2616 Section 10.2.6 */
+ case 206:
+ return "Partial Content"; /* RFC2616 Section 10.2.7 */
+ case 207:
+ return "Multi-Status"; /* RFC2518 Section 10.2, RFC4918 Section 11.1
+ */
+ case 208:
+ return "Already Reported"; /* RFC5842 Section 7.1 */
+
+ case 226:
+ return "IM used"; /* RFC3229 Section 10.4.1 */
+
+ /* RFC2616 Section 10.3 - Redirection 3xx */
+ case 300:
+ return "Multiple Choices"; /* RFC2616 Section 10.3.1 */
+ case 301:
+ return "Moved Permanently"; /* RFC2616 Section 10.3.2 */
+ case 302:
+ return "Found"; /* RFC2616 Section 10.3.3 */
+ case 303:
+ return "See Other"; /* RFC2616 Section 10.3.4 */
+ case 304:
+ return "Not Modified"; /* RFC2616 Section 10.3.5 */
+ case 305:
+ return "Use Proxy"; /* RFC2616 Section 10.3.6 */
+ case 307:
+ return "Temporary Redirect"; /* RFC2616 Section 10.3.8 */
+ case 308:
+ return "Permanent Redirect"; /* RFC7238 Section 3 */
+
+ /* RFC2616 Section 10.4 - Client Error 4xx */
+ case 400:
+ return "Bad Request"; /* RFC2616 Section 10.4.1 */
+ case 401:
+ return "Unauthorized"; /* RFC2616 Section 10.4.2 */
+ case 402:
+ return "Payment Required"; /* RFC2616 Section 10.4.3 */
+ case 403:
+ return "Forbidden"; /* RFC2616 Section 10.4.4 */
+ case 404:
+ return "Not Found"; /* RFC2616 Section 10.4.5 */
+ case 405:
+ return "Method Not Allowed"; /* RFC2616 Section 10.4.6 */
+ case 406:
+ return "Not Acceptable"; /* RFC2616 Section 10.4.7 */
+ case 407:
+ return "Proxy Authentication Required"; /* RFC2616 Section 10.4.8 */
+ case 408:
+ return "Request Time-out"; /* RFC2616 Section 10.4.9 */
+ case 409:
+ return "Conflict"; /* RFC2616 Section 10.4.10 */
+ case 410:
+ return "Gone"; /* RFC2616 Section 10.4.11 */
+ case 411:
+ return "Length Required"; /* RFC2616 Section 10.4.12 */
+ case 412:
+ return "Precondition Failed"; /* RFC2616 Section 10.4.13 */
+ case 413:
+ return "Request Entity Too Large"; /* RFC2616 Section 10.4.14 */
+ case 414:
+ return "Request-URI Too Large"; /* RFC2616 Section 10.4.15 */
+ case 415:
+ return "Unsupported Media Type"; /* RFC2616 Section 10.4.16 */
+ case 416:
+ return "Requested range not satisfiable"; /* RFC2616 Section 10.4.17
+ */
+ case 417:
+ return "Expectation Failed"; /* RFC2616 Section 10.4.18 */
+
+ case 421:
+ return "Misdirected Request"; /* RFC7540 Section 9.1.2 */
+ case 422:
+ return "Unproccessable entity"; /* RFC2518 Section 10.3, RFC4918
+ * Section 11.2 */
+ case 423:
+ return "Locked"; /* RFC2518 Section 10.4, RFC4918 Section 11.3 */
+ case 424:
+ return "Failed Dependency"; /* RFC2518 Section 10.5, RFC4918
+ * Section 11.4 */
+
+ case 426:
+ return "Upgrade Required"; /* RFC 2817 Section 4 */
+
+ case 428:
+ return "Precondition Required"; /* RFC 6585, Section 3 */
+ case 429:
+ return "Too Many Requests"; /* RFC 6585, Section 4 */
+
+ case 431:
+ return "Request Header Fields Too Large"; /* RFC 6585, Section 5 */
+
+ case 451:
+ return "Unavailable For Legal Reasons"; /* draft-tbray-http-legally-restricted-status-05,
+ * Section 3 */
+
+ /* RFC2616 Section 10.5 - Server Error 5xx */
+ case 500:
+ return "Internal Server Error"; /* RFC2616 Section 10.5.1 */
+ case 501:
+ return "Not Implemented"; /* RFC2616 Section 10.5.2 */
+ case 502:
+ return "Bad Gateway"; /* RFC2616 Section 10.5.3 */
+ case 503:
+ return "Service Unavailable"; /* RFC2616 Section 10.5.4 */
+ case 504:
+ return "Gateway Time-out"; /* RFC2616 Section 10.5.5 */
+ case 505:
+ return "HTTP Version not supported"; /* RFC2616 Section 10.5.6 */
+ case 506:
+ return "Variant Also Negotiates"; /* RFC 2295, Section 8.1 */
+ case 507:
+ return "Insufficient Storage"; /* RFC2518 Section 10.6, RFC4918
+ * Section 11.5 */
+ case 508:
+ return "Loop Detected"; /* RFC5842 Section 7.1 */
+
+ case 510:
+ return "Not Extended"; /* RFC 2774, Section 7 */
+ case 511:
+ return "Network Authentication Required"; /* RFC 6585, Section 6 */
+
+ /* Other status codes, not shown in the IANA HTTP status code
+ * assignment.
+ * E.g., "de facto" standards due to common use, ... */
+ case 418:
+ return "I am a teapot"; /* RFC2324 Section 2.3.2 */
+ case 419:
+ return "Authentication Timeout"; /* common use */
+ case 420:
+ return "Enhance Your Calm"; /* common use */
+ case 440:
+ return "Login Timeout"; /* common use */
+ case 509:
+ return "Bandwidth Limit Exceeded"; /* common use */
+
+ default:
+ /* This error code is unknown. This should not happen. */
+ if (conn) {
+ mg_cry_internal(conn,
+ "Unknown HTTP response code: %u",
+ response_code);
+ }
+
+ /* Return at least a category according to RFC 2616 Section 10. */
+ if (response_code >= 100 && response_code < 200) {
+ /* Unknown informational status code */
+ return "Information";
+ }
+ if (response_code >= 200 && response_code < 300) {
+ /* Unknown success code */
+ return "Success";
+ }
+ if (response_code >= 300 && response_code < 400) {
+ /* Unknown redirection code */
+ return "Redirection";
+ }
+ if (response_code >= 400 && response_code < 500) {
+ /* Unknown request error code */
+ return "Client Error";
+ }
+ if (response_code >= 500 && response_code < 600) {
+ /* Unknown server error code */
+ return "Server Error";
+ }
+
+ /* Response code not even within reasonable range */
+ return "";
+ }
+}
+
+
+static int
+mg_send_http_error_impl(struct mg_connection *conn,
+ int status,
+ const char *fmt,
+ va_list args)
+{
+ char errmsg_buf[MG_BUF_LEN];
+ char path_buf[PATH_MAX];
+ va_list ap;
+ int len, i, page_handler_found, scope, truncated, has_body;
+ char date[64];
+ time_t curtime = time(NULL);
+ const char *error_handler = NULL;
+ struct mg_file error_page_file = STRUCT_FILE_INITIALIZER;
+ const char *error_page_file_ext, *tstr;
+ int handled_by_callback = 0;
+
+ const char *status_text = mg_get_response_code_text(conn, status);
+
+ if ((conn == NULL) || (fmt == NULL)) {
+ return -2;
+ }
+
+ /* Set status (for log) */
+ conn->status_code = status;
+
+ /* Errors 1xx, 204 and 304 MUST NOT send a body */
+ has_body = ((status > 199) && (status != 204) && (status != 304));
+
+ /* Prepare message in buf, if required */
+ if (has_body
+ || (!conn->in_error_handler
+ && (conn->phys_ctx->callbacks.http_error != NULL))) {
+ /* Store error message in errmsg_buf */
+ va_copy(ap, args);
+ mg_vsnprintf(conn, NULL, errmsg_buf, sizeof(errmsg_buf), fmt, ap);
+ va_end(ap);
+ /* In a debug build, print all html errors */
+ DEBUG_TRACE("Error %i - [%s]", status, errmsg_buf);
+ }
+
+ /* If there is a http_error callback, call it.
+ * But don't do it recursively, if callback calls mg_send_http_error again.
+ */
+ if (!conn->in_error_handler
+ && (conn->phys_ctx->callbacks.http_error != NULL)) {
+ /* Mark in_error_handler to avoid recursion and call user callback. */
+ conn->in_error_handler = 1;
+ handled_by_callback =
+ (conn->phys_ctx->callbacks.http_error(conn, status, errmsg_buf)
+ == 0);
+ conn->in_error_handler = 0;
+ }
+
+ if (!handled_by_callback) {
+ /* Check for recursion */
+ if (conn->in_error_handler) {
+ DEBUG_TRACE(
+ "Recursion when handling error %u - fall back to default",
+ status);
+ } else {
+ /* Send user defined error pages, if defined */
+ error_handler = conn->dom_ctx->config[ERROR_PAGES];
+ error_page_file_ext = conn->dom_ctx->config[INDEX_FILES];
+ page_handler_found = 0;
+
+ if (error_handler != NULL) {
+ for (scope = 1; (scope <= 3) && !page_handler_found; scope++) {
+ switch (scope) {
+ case 1: /* Handler for specific error, e.g. 404 error */
+ mg_snprintf(conn,
+ &truncated,
+ path_buf,
+ sizeof(path_buf) - 32,
+ "%serror%03u.",
+ error_handler,
+ status);
+ break;
+ case 2: /* Handler for error group, e.g., 5xx error
+ * handler
+ * for all server errors (500-599) */
+ mg_snprintf(conn,
+ &truncated,
+ path_buf,
+ sizeof(path_buf) - 32,
+ "%serror%01uxx.",
+ error_handler,
+ status / 100);
+ break;
+ default: /* Handler for all errors */
+ mg_snprintf(conn,
+ &truncated,
+ path_buf,
+ sizeof(path_buf) - 32,
+ "%serror.",
+ error_handler);
+ break;
+ }
+
+ /* String truncation in buf may only occur if
+ * error_handler is too long. This string is
+ * from the config, not from a client. */
+ (void)truncated;
+
+ len = (int)strlen(path_buf);
+
+ tstr = strchr(error_page_file_ext, '.');
+
+ while (tstr) {
+ for (i = 1;
+ (i < 32) && (tstr[i] != 0) && (tstr[i] != ',');
+ i++) {
+ /* buffer overrun is not possible here, since
+ * (i < 32) && (len < sizeof(path_buf) - 32)
+ * ==> (i + len) < sizeof(path_buf) */
+ path_buf[len + i - 1] = tstr[i];
+ }
+ /* buffer overrun is not possible here, since
+ * (i <= 32) && (len < sizeof(path_buf) - 32)
+ * ==> (i + len) <= sizeof(path_buf) */
+ path_buf[len + i - 1] = 0;
+
+ if (mg_stat(conn, path_buf, &error_page_file.stat)) {
+ DEBUG_TRACE("Check error page %s - found",
+ path_buf);
+ page_handler_found = 1;
+ break;
+ }
+ DEBUG_TRACE("Check error page %s - not found",
+ path_buf);
+
+ tstr = strchr(tstr + i, '.');
+ }
+ }
+ }
+
+ if (page_handler_found) {
+ conn->in_error_handler = 1;
+ handle_file_based_request(conn, path_buf, &error_page_file);
+ conn->in_error_handler = 0;
+ return 0;
+ }
+ }
+
+ /* No custom error page. Send default error page. */
+ gmt_time_string(date, sizeof(date), &curtime);
+
+ conn->must_close = 1;
+ mg_printf(conn, "HTTP/1.1 %d %s\r\n", status, status_text);
+ send_no_cache_header(conn);
+ send_additional_header(conn);
+ if (has_body) {
+ mg_printf(conn,
+ "%s",
+ "Content-Type: text/plain; charset=utf-8\r\n");
+ }
+ mg_printf(conn,
+ "Date: %s\r\n"
+ "Connection: close\r\n\r\n",
+ date);
+
+ /* HTTP responses 1xx, 204 and 304 MUST NOT send a body */
+ if (has_body) {
+ /* For other errors, send a generic error message. */
+ mg_printf(conn, "Error %d: %s\n", status, status_text);
+ mg_write(conn, errmsg_buf, strlen(errmsg_buf));
+
+ } else {
+ /* No body allowed. Close the connection. */
+ DEBUG_TRACE("Error %i", status);
+ }
+ }
+ return 0;
+}
+
+
+int
+mg_send_http_error(struct mg_connection *conn, int status, const char *fmt, ...)
+{
+ va_list ap;
+ int ret;
+
+ va_start(ap, fmt);
+ ret = mg_send_http_error_impl(conn, status, fmt, ap);
+ va_end(ap);
+
+ return ret;
+}
+
+
+int
+mg_send_http_ok(struct mg_connection *conn,
+ const char *mime_type,
+ long long content_length)
+{
+ char date[64];
+ time_t curtime = time(NULL);
+
+ if ((mime_type == NULL) || (*mime_type == 0)) {
+ /* Parameter error */
+ return -2;
+ }
+
+ gmt_time_string(date, sizeof(date), &curtime);
+
+ mg_printf(conn,
+ "HTTP/1.1 200 OK\r\n"
+ "Content-Type: %s\r\n"
+ "Date: %s\r\n"
+ "Connection: %s\r\n",
+ mime_type,
+ date,
+ suggest_connection_header(conn));
+
+ send_no_cache_header(conn);
+ send_additional_header(conn);
+ if (content_length < 0) {
+ mg_printf(conn, "Transfer-Encoding: chunked\r\n\r\n");
+ } else {
+ mg_printf(conn,
+ "Content-Length: %" UINT64_FMT "\r\n\r\n",
+ (uint64_t)content_length);
+ }
+
+ return 0;
+}
+
+
+int
+mg_send_http_redirect(struct mg_connection *conn,
+ const char *target_url,
+ int redirect_code)
+{
+ /* Send a 30x redirect response.
+ *
+ * Redirect types (status codes):
+ *
+ * Status | Perm/Temp | Method | Version
+ * 301 | permanent | POST->GET undefined | HTTP/1.0
+ * 302 | temporary | POST->GET undefined | HTTP/1.0
+ * 303 | temporary | always use GET | HTTP/1.1
+ * 307 | temporary | always keep method | HTTP/1.1
+ * 308 | permanent | always keep method | HTTP/1.1
+ */
+ const char *redirect_text;
+ int ret;
+ size_t content_len = 0;
+ char reply[MG_BUF_LEN];
+
+ /* In case redirect_code=0, use 307. */
+ if (redirect_code == 0) {
+ redirect_code = 307;
+ }
+
+ /* In case redirect_code is none of the above, return error. */
+ if ((redirect_code != 301) && (redirect_code != 302)
+ && (redirect_code != 303) && (redirect_code != 307)
+ && (redirect_code != 308)) {
+ /* Parameter error */
+ return -2;
+ }
+
+ /* Get proper text for response code */
+ redirect_text = mg_get_response_code_text(conn, redirect_code);
+
+ /* If target_url is not defined, redirect to "/". */
+ if ((target_url == NULL) || (*target_url == 0)) {
+ target_url = "/";
+ }
+
+#if defined(MG_SEND_REDIRECT_BODY)
+ /* TODO: condition name? */
+
+ /* Prepare a response body with a hyperlink.
+ *
+ * According to RFC2616 (and RFC1945 before):
+ * Unless the request method was HEAD, the entity of the
+ * response SHOULD contain a short hypertext note with a hyperlink to
+ * the new URI(s).
+ *
+ * However, this response body is not useful in M2M communication.
+ * Probably the original reason in the RFC was, clients not supporting
+ * a 30x HTTP redirect could still show the HTML page and let the user
+ * press the link. Since current browsers support 30x HTTP, the additional
+ * HTML body does not seem to make sense anymore.
+ *
+ * The new RFC7231 (Section 6.4) does no longer recommend it ("SHOULD"),
+ * but it only notes:
+ * The server's response payload usually contains a short
+ * hypertext note with a hyperlink to the new URI(s).
+ *
+ * Deactivated by default. If you need the 30x body, set the define.
+ */
+ mg_snprintf(
+ conn,
+ NULL /* ignore truncation */,
+ reply,
+ sizeof(reply),
+ "<html><head>%s</head><body><a href=\"%s\">%s</a></body></html>",
+ redirect_text,
+ target_url,
+ target_url);
+ content_len = strlen(reply);
+#else
+ reply[0] = 0;
+#endif
+
+ /* Do not send any additional header. For all other options,
+ * including caching, there are suitable defaults. */
+ ret = mg_printf(conn,
+ "HTTP/1.1 %i %s\r\n"
+ "Location: %s\r\n"
+ "Content-Length: %u\r\n"
+ "Connection: %s\r\n\r\n",
+ redirect_code,
+ redirect_text,
+ target_url,
+ (unsigned int)content_len,
+ suggest_connection_header(conn));
+
+ /* Send response body */
+ if (ret > 0) {
+ /* ... unless it is a HEAD request */
+ if (0 != strcmp(conn->request_info.request_method, "HEAD")) {
+ ret = mg_write(conn, reply, content_len);
+ }
+ }
+
+ return (ret > 0) ? ret : -1;
+}
+
+
+#if defined(_WIN32)
+/* Create substitutes for POSIX functions in Win32. */
+
+#if defined(GCC_DIAGNOSTIC)
+/* Show no warning in case system functions are not used. */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+#endif
+
+
+static int
+pthread_mutex_init(pthread_mutex_t *mutex, void *unused)
+{
+ (void)unused;
+ /* Always initialize as PTHREAD_MUTEX_RECURSIVE */
+ InitializeCriticalSection(&mutex->sec);
+ return 0;
+}
+
+
+static int
+pthread_mutex_destroy(pthread_mutex_t *mutex)
+{
+ DeleteCriticalSection(&mutex->sec);
+ return 0;
+}
+
+
+static int
+pthread_mutex_lock(pthread_mutex_t *mutex)
+{
+ EnterCriticalSection(&mutex->sec);
+ return 0;
+}
+
+
+static int
+pthread_mutex_unlock(pthread_mutex_t *mutex)
+{
+ LeaveCriticalSection(&mutex->sec);
+ return 0;
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+pthread_cond_init(pthread_cond_t *cv, const void *unused)
+{
+ (void)unused;
+ (void)pthread_mutex_init(&cv->threadIdSec, &pthread_mutex_attr);
+ cv->waiting_thread = NULL;
+ return 0;
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+pthread_cond_timedwait(pthread_cond_t *cv,
+ pthread_mutex_t *mutex,
+ FUNCTION_MAY_BE_UNUSED const struct timespec *abstime)
+{
+ struct mg_workerTLS **ptls,
+ *tls = (struct mg_workerTLS *)pthread_getspecific(sTlsKey);
+ int ok;
+ int64_t nsnow, nswaitabs, nswaitrel;
+ DWORD mswaitrel;
+
+ pthread_mutex_lock(&cv->threadIdSec);
+ /* Add this thread to cv's waiting list */
+ ptls = &cv->waiting_thread;
+ for (; *ptls != NULL; ptls = &(*ptls)->next_waiting_thread)
+ ;
+ tls->next_waiting_thread = NULL;
+ *ptls = tls;
+ pthread_mutex_unlock(&cv->threadIdSec);
+
+ if (abstime) {
+ nsnow = mg_get_current_time_ns();
+ nswaitabs =
+ (((int64_t)abstime->tv_sec) * 1000000000) + abstime->tv_nsec;
+ nswaitrel = nswaitabs - nsnow;
+ if (nswaitrel < 0) {
+ nswaitrel = 0;
+ }
+ mswaitrel = (DWORD)(nswaitrel / 1000000);
+ } else {
+ mswaitrel = (DWORD)INFINITE;
+ }
+
+ pthread_mutex_unlock(mutex);
+ ok = (WAIT_OBJECT_0
+ == WaitForSingleObject(tls->pthread_cond_helper_mutex, mswaitrel));
+ if (!ok) {
+ ok = 1;
+ pthread_mutex_lock(&cv->threadIdSec);
+ ptls = &cv->waiting_thread;
+ for (; *ptls != NULL; ptls = &(*ptls)->next_waiting_thread) {
+ if (*ptls == tls) {
+ *ptls = tls->next_waiting_thread;
+ ok = 0;
+ break;
+ }
+ }
+ pthread_mutex_unlock(&cv->threadIdSec);
+ if (ok) {
+ WaitForSingleObject(tls->pthread_cond_helper_mutex,
+ (DWORD)INFINITE);
+ }
+ }
+ /* This thread has been removed from cv's waiting list */
+ pthread_mutex_lock(mutex);
+
+ return ok ? 0 : -1;
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+pthread_cond_wait(pthread_cond_t *cv, pthread_mutex_t *mutex)
+{
+ return pthread_cond_timedwait(cv, mutex, NULL);
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+pthread_cond_signal(pthread_cond_t *cv)
+{
+ HANDLE wkup = NULL;
+ BOOL ok = FALSE;
+
+ pthread_mutex_lock(&cv->threadIdSec);
+ if (cv->waiting_thread) {
+ wkup = cv->waiting_thread->pthread_cond_helper_mutex;
+ cv->waiting_thread = cv->waiting_thread->next_waiting_thread;
+
+ ok = SetEvent(wkup);
+ DEBUG_ASSERT(ok);
+ }
+ pthread_mutex_unlock(&cv->threadIdSec);
+
+ return ok ? 0 : 1;
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+pthread_cond_broadcast(pthread_cond_t *cv)
+{
+ pthread_mutex_lock(&cv->threadIdSec);
+ while (cv->waiting_thread) {
+ pthread_cond_signal(cv);
+ }
+ pthread_mutex_unlock(&cv->threadIdSec);
+
+ return 0;
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+pthread_cond_destroy(pthread_cond_t *cv)
+{
+ pthread_mutex_lock(&cv->threadIdSec);
+ DEBUG_ASSERT(cv->waiting_thread == NULL);
+ pthread_mutex_unlock(&cv->threadIdSec);
+ pthread_mutex_destroy(&cv->threadIdSec);
+
+ return 0;
+}
+
+
+#if defined(ALTERNATIVE_QUEUE)
+FUNCTION_MAY_BE_UNUSED
+static void *
+event_create(void)
+{
+ return (void *)CreateEvent(NULL, FALSE, FALSE, NULL);
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+event_wait(void *eventhdl)
+{
+ int res = WaitForSingleObject((HANDLE)eventhdl, (DWORD)INFINITE);
+ return (res == WAIT_OBJECT_0);
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+event_signal(void *eventhdl)
+{
+ return (int)SetEvent((HANDLE)eventhdl);
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static void
+event_destroy(void *eventhdl)
+{
+ CloseHandle((HANDLE)eventhdl);
+}
+#endif
+
+
+#if defined(GCC_DIAGNOSTIC)
+/* Enable unused function warning again */
+#pragma GCC diagnostic pop
+#endif
+
+
+/* For Windows, change all slashes to backslashes in path names. */
+static void
+change_slashes_to_backslashes(char *path)
+{
+ int i;
+
+ for (i = 0; path[i] != '\0'; i++) {
+ if (path[i] == '/') {
+ path[i] = '\\';
+ }
+
+ /* remove double backslash (check i > 0 to preserve UNC paths,
+ * like \\server\file.txt) */
+ if ((path[i] == '\\') && (i > 0)) {
+ while ((path[i + 1] == '\\') || (path[i + 1] == '/')) {
+ (void)memmove(path + i + 1, path + i + 2, strlen(path + i + 1));
+ }
+ }
+ }
+}
+
+
+static int
+mg_wcscasecmp(const wchar_t *s1, const wchar_t *s2)
+{
+ int diff;
+
+ do {
+ diff = ((*s1 >= L'A') && (*s1 <= L'Z') ? (*s1 - L'A' + L'a') : *s1)
+ - ((*s2 >= L'A') && (*s2 <= L'Z') ? (*s2 - L'A' + L'a') : *s2);
+ s1++;
+ s2++;
+ } while ((diff == 0) && (s1[-1] != L'\0'));
+
+ return diff;
+}
+
+
+/* Encode 'path' which is assumed UTF-8 string, into UNICODE string.
+ * wbuf and wbuf_len is a target buffer and its length. */
+static void
+path_to_unicode(const struct mg_connection *conn,
+ const char *path,
+ wchar_t *wbuf,
+ size_t wbuf_len)
+{
+ char buf[PATH_MAX], buf2[PATH_MAX];
+ wchar_t wbuf2[W_PATH_MAX + 1];
+ DWORD long_len, err;
+ int (*fcompare)(const wchar_t *, const wchar_t *) = mg_wcscasecmp;
+
+ mg_strlcpy(buf, path, sizeof(buf));
+ change_slashes_to_backslashes(buf);
+
+ /* Convert to Unicode and back. If doubly-converted string does not
+ * match the original, something is fishy, reject. */
+ memset(wbuf, 0, wbuf_len * sizeof(wchar_t));
+ MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, (int)wbuf_len);
+ WideCharToMultiByte(
+ CP_UTF8, 0, wbuf, (int)wbuf_len, buf2, sizeof(buf2), NULL, NULL);
+ if (strcmp(buf, buf2) != 0) {
+ wbuf[0] = L'\0';
+ }
+
+ /* Windows file systems are not case sensitive, but you can still use
+ * uppercase and lowercase letters (on all modern file systems).
+ * The server can check if the URI uses the same upper/lowercase
+ * letters an the file system, effectively making Windows servers
+ * case sensitive (like Linux servers are). It is still not possible
+ * to use two files with the same name in different cases on Windows
+ * (like /a and /A) - this would be possible in Linux.
+ * As a default, Windows is not case sensitive, but the case sensitive
+ * file name check can be activated by an additional configuration. */
+ if (conn) {
+ if (conn->dom_ctx->config[CASE_SENSITIVE_FILES]
+ && !mg_strcasecmp(conn->dom_ctx->config[CASE_SENSITIVE_FILES],
+ "yes")) {
+ /* Use case sensitive compare function */
+ fcompare = wcscmp;
+ }
+ }
+ (void)conn; /* conn is currently unused */
+
+#if !defined(_WIN32_WCE)
+ /* Only accept a full file path, not a Windows short (8.3) path. */
+ memset(wbuf2, 0, ARRAY_SIZE(wbuf2) * sizeof(wchar_t));
+ long_len = GetLongPathNameW(wbuf, wbuf2, ARRAY_SIZE(wbuf2) - 1);
+ if (long_len == 0) {
+ err = GetLastError();
+ if (err == ERROR_FILE_NOT_FOUND) {
+ /* File does not exist. This is not always a problem here. */
+ return;
+ }
+ }
+ if ((long_len >= ARRAY_SIZE(wbuf2)) || (fcompare(wbuf, wbuf2) != 0)) {
+ /* Short name is used. */
+ wbuf[0] = L'\0';
+ }
+#else
+ (void)long_len;
+ (void)wbuf2;
+ (void)err;
+
+ if (strchr(path, '~')) {
+ wbuf[0] = L'\0';
+ }
+#endif
+}
+
+
+static int
+mg_stat(const struct mg_connection *conn,
+ const char *path,
+ struct mg_file_stat *filep)
+{
+ wchar_t wbuf[W_PATH_MAX];
+ WIN32_FILE_ATTRIBUTE_DATA info;
+ time_t creation_time;
+ size_t len;
+
+ if (!filep) {
+ return 0;
+ }
+ memset(filep, 0, sizeof(*filep));
+
+ if (conn && is_file_in_memory(conn, path)) {
+ /* filep->is_directory = 0; filep->gzipped = 0; .. already done by
+ * memset */
+
+ /* Quick fix (for 1.9.x): */
+ /* mg_stat must fill all fields, also for files in memory */
+ struct mg_file tmp_file = STRUCT_FILE_INITIALIZER;
+ open_file_in_memory(conn, path, &tmp_file, MG_FOPEN_MODE_NONE);
+ filep->size = tmp_file.stat.size;
+ filep->location = 2;
+ /* TODO: for 1.10: restructure how files in memory are handled */
+
+ /* The "file in memory" feature is a candidate for deletion.
+ * Please join the discussion at
+ * https://groups.google.com/forum/#!topic/civetweb/h9HT4CmeYqI
+ */
+
+ filep->last_modified = time(NULL); /* TODO */
+ /* last_modified = now ... assumes the file may change during
+ * runtime,
+ * so every mg_fopen call may return different data */
+ /* last_modified = conn->phys_ctx.start_time;
+ * May be used it the data does not change during runtime. This
+ * allows
+ * browser caching. Since we do not know, we have to assume the file
+ * in memory may change. */
+ return 1;
+ }
+
+ path_to_unicode(conn, path, wbuf, ARRAY_SIZE(wbuf));
+ /* Windows happily opens files with some garbage at the end of file name.
+ * For example, fopen("a.cgi ", "r") on Windows successfully opens
+ * "a.cgi", despite one would expect an error back. */
+ len = strlen(path);
+ if ((len > 0) && (path[len - 1] != ' ') && (path[len - 1] != '.')
+ && (GetFileAttributesExW(wbuf, GetFileExInfoStandard, &info) != 0)) {
+ filep->size = MAKEUQUAD(info.nFileSizeLow, info.nFileSizeHigh);
+ filep->last_modified =
+ SYS2UNIX_TIME(info.ftLastWriteTime.dwLowDateTime,
+ info.ftLastWriteTime.dwHighDateTime);
+
+ /* On Windows, the file creation time can be higher than the
+ * modification time, e.g. when a file is copied.
+ * Since the Last-Modified timestamp is used for caching
+ * it should be based on the most recent timestamp. */
+ creation_time = SYS2UNIX_TIME(info.ftCreationTime.dwLowDateTime,
+ info.ftCreationTime.dwHighDateTime);
+ if (creation_time > filep->last_modified) {
+ filep->last_modified = creation_time;
+ }
+
+ filep->is_directory = info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY;
+ return 1;
+ }
+
+ return 0;
+}
+
+
+static int
+mg_remove(const struct mg_connection *conn, const char *path)
+{
+ wchar_t wbuf[W_PATH_MAX];
+ path_to_unicode(conn, path, wbuf, ARRAY_SIZE(wbuf));
+ return DeleteFileW(wbuf) ? 0 : -1;
+}
+
+
+static int
+mg_mkdir(const struct mg_connection *conn, const char *path, int mode)
+{
+ wchar_t wbuf[W_PATH_MAX];
+ (void)mode;
+ path_to_unicode(conn, path, wbuf, ARRAY_SIZE(wbuf));
+ return CreateDirectoryW(wbuf, NULL) ? 0 : -1;
+}
+
+
+/* Create substitutes for POSIX functions in Win32. */
+
+#if defined(GCC_DIAGNOSTIC)
+/* Show no warning in case system functions are not used. */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+#endif
+
+
+/* Implementation of POSIX opendir/closedir/readdir for Windows. */
+FUNCTION_MAY_BE_UNUSED
+static DIR *
+mg_opendir(const struct mg_connection *conn, const char *name)
+{
+ DIR *dir = NULL;
+ wchar_t wpath[W_PATH_MAX];
+ DWORD attrs;
+
+ if (name == NULL) {
+ SetLastError(ERROR_BAD_ARGUMENTS);
+ } else if ((dir = (DIR *)mg_malloc(sizeof(*dir))) == NULL) {
+ SetLastError(ERROR_NOT_ENOUGH_MEMORY);
+ } else {
+ path_to_unicode(conn, name, wpath, ARRAY_SIZE(wpath));
+ attrs = GetFileAttributesW(wpath);
+ if ((wcslen(wpath) + 2 < ARRAY_SIZE(wpath)) && (attrs != 0xFFFFFFFF)
+ && ((attrs & FILE_ATTRIBUTE_DIRECTORY) != 0)) {
+ (void)wcscat(wpath, L"\\*");
+ dir->handle = FindFirstFileW(wpath, &dir->info);
+ dir->result.d_name[0] = '\0';
+ } else {
+ mg_free(dir);
+ dir = NULL;
+ }
+ }
+
+ return dir;
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+mg_closedir(DIR *dir)
+{
+ int result = 0;
+
+ if (dir != NULL) {
+ if (dir->handle != INVALID_HANDLE_VALUE)
+ result = FindClose(dir->handle) ? 0 : -1;
+
+ mg_free(dir);
+ } else {
+ result = -1;
+ SetLastError(ERROR_BAD_ARGUMENTS);
+ }
+
+ return result;
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static struct dirent *
+mg_readdir(DIR *dir)
+{
+ struct dirent *result = 0;
+
+ if (dir) {
+ if (dir->handle != INVALID_HANDLE_VALUE) {
+ result = &dir->result;
+ (void)WideCharToMultiByte(CP_UTF8,
+ 0,
+ dir->info.cFileName,
+ -1,
+ result->d_name,
+ sizeof(result->d_name),
+ NULL,
+ NULL);
+
+ if (!FindNextFileW(dir->handle, &dir->info)) {
+ (void)FindClose(dir->handle);
+ dir->handle = INVALID_HANDLE_VALUE;
+ }
+
+ } else {
+ SetLastError(ERROR_FILE_NOT_FOUND);
+ }
+ } else {
+ SetLastError(ERROR_BAD_ARGUMENTS);
+ }
+
+ return result;
+}
+
+
+#if !defined(HAVE_POLL)
+#undef POLLIN
+#undef POLLPRI
+#undef POLLOUT
+#define POLLIN (1) /* Data ready - read will not block. */
+#define POLLPRI (2) /* Priority data ready. */
+#define POLLOUT (4) /* Send queue not full - write will not block. */
+
+FUNCTION_MAY_BE_UNUSED
+static int
+poll(struct mg_pollfd *pfd, unsigned int n, int milliseconds)
+{
+ struct timeval tv;
+ fd_set rset;
+ fd_set wset;
+ unsigned int i;
+ int result;
+ SOCKET maxfd = 0;
+
+ memset(&tv, 0, sizeof(tv));
+ tv.tv_sec = milliseconds / 1000;
+ tv.tv_usec = (milliseconds % 1000) * 1000;
+ FD_ZERO(&rset);
+ FD_ZERO(&wset);
+
+ for (i = 0; i < n; i++) {
+ if (pfd[i].events & POLLIN) {
+ FD_SET(pfd[i].fd, &rset);
+ }
+ if (pfd[i].events & POLLOUT) {
+ FD_SET(pfd[i].fd, &wset);
+ }
+ pfd[i].revents = 0;
+
+ if (pfd[i].fd > maxfd) {
+ maxfd = pfd[i].fd;
+ }
+ }
+
+ if ((result = select((int)maxfd + 1, &rset, &wset, NULL, &tv)) > 0) {
+ for (i = 0; i < n; i++) {
+ if (FD_ISSET(pfd[i].fd, &rset)) {
+ pfd[i].revents |= POLLIN;
+ }
+ if (FD_ISSET(pfd[i].fd, &wset)) {
+ pfd[i].revents |= POLLOUT;
+ }
+ }
+ }
+
+ /* We should subtract the time used in select from remaining
+ * "milliseconds", in particular if called from mg_poll with a
+ * timeout quantum.
+ * Unfortunately, the remaining time is not stored in "tv" in all
+ * implementations, so the result in "tv" must be considered undefined.
+ * See http://man7.org/linux/man-pages/man2/select.2.html */
+
+ return result;
+}
+#endif /* HAVE_POLL */
+
+
+#if defined(GCC_DIAGNOSTIC)
+/* Enable unused function warning again */
+#pragma GCC diagnostic pop
+#endif
+
+
+static void
+set_close_on_exec(SOCKET sock,
+ const struct mg_connection *conn /* may be null */,
+ struct mg_context *ctx /* may be null */)
+{
+ (void)conn; /* Unused. */
+ (void)ctx;
+#if defined(_WIN32_WCE)
+ (void)sock;
+#else
+ (void)SetHandleInformation((HANDLE)(intptr_t)sock, HANDLE_FLAG_INHERIT, 0);
+#endif
+}
+
+
+int
+mg_start_thread(mg_thread_func_t f, void *p)
+{
+#if defined(USE_STACK_SIZE) && (USE_STACK_SIZE > 1)
+ /* Compile-time option to control stack size, e.g.
+ * -DUSE_STACK_SIZE=16384
+ */
+ return ((_beginthread((void(__cdecl *)(void *))f, USE_STACK_SIZE, p)
+ == ((uintptr_t)(-1L)))
+ ? -1
+ : 0);
+#else
+ return (
+ (_beginthread((void(__cdecl *)(void *))f, 0, p) == ((uintptr_t)(-1L)))
+ ? -1
+ : 0);
+#endif /* defined(USE_STACK_SIZE) && (USE_STACK_SIZE > 1) */
+}
+
+
+/* Start a thread storing the thread context. */
+static int
+mg_start_thread_with_id(unsigned(__stdcall *f)(void *),
+ void *p,
+ pthread_t *threadidptr)
+{
+ uintptr_t uip;
+ HANDLE threadhandle;
+ int result = -1;
+
+ uip = _beginthreadex(NULL, 0, f, p, 0, NULL);
+ threadhandle = (HANDLE)uip;
+ if ((uip != 0) && (threadidptr != NULL)) {
+ *threadidptr = threadhandle;
+ result = 0;
+ }
+
+ return result;
+}
+
+
+/* Wait for a thread to finish. */
+static int
+mg_join_thread(pthread_t threadid)
+{
+ int result;
+ DWORD dwevent;
+
+ result = -1;
+ dwevent = WaitForSingleObject(threadid, (DWORD)INFINITE);
+ if (dwevent == WAIT_FAILED) {
+ DEBUG_TRACE("WaitForSingleObject() failed, error %d", ERRNO);
+ } else {
+ if (dwevent == WAIT_OBJECT_0) {
+ CloseHandle(threadid);
+ result = 0;
+ }
+ }
+
+ return result;
+}
+
+#if !defined(NO_SSL_DL) && !defined(NO_SSL)
+/* If SSL is loaded dynamically, dlopen/dlclose is required. */
+/* Create substitutes for POSIX functions in Win32. */
+
+#if defined(GCC_DIAGNOSTIC)
+/* Show no warning in case system functions are not used. */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-function"
+#endif
+
+
+FUNCTION_MAY_BE_UNUSED
+static HANDLE
+dlopen(const char *dll_name, int flags)
+{
+ wchar_t wbuf[W_PATH_MAX];
+ (void)flags;
+ path_to_unicode(NULL, dll_name, wbuf, ARRAY_SIZE(wbuf));
+ return LoadLibraryW(wbuf);
+}
+
+
+FUNCTION_MAY_BE_UNUSED
+static int
+dlclose(void *handle)
+{
+ int result;
+
+ if (FreeLibrary((HMODULE)handle) != 0) {
+ result = 0;
+ } else {
+ result = -1;
+ }
+
+ return result;
+}
+
+
+#if defined(GCC_DIAGNOSTIC)
+/* Enable unused function warning again */
+#pragma GCC diagnostic pop
+#endif
+
+#endif
+
+
+#if !defined(NO_CGI)
+#define SIGKILL (0)
+
+
+static int
+kill(pid_t pid, int sig_num)
+{
+ (void)TerminateProcess((HANDLE)pid, (UINT)sig_num);
+ (void)CloseHandle((HANDLE)pid);
+ return 0;
+}
+
+
+#if !defined(WNOHANG)
+#define WNOHANG (1)
+#endif
+
+
+static pid_t
+waitpid(pid_t pid, int *status, int flags)
+{
+ DWORD timeout = INFINITE;
+ DWORD waitres;
+
+ (void)status; /* Currently not used by any client here */
+
+ if ((flags | WNOHANG) == WNOHANG) {
+ timeout = 0;
+ }
+
+ waitres = WaitForSingleObject((HANDLE)pid, timeout);
+ if (waitres == WAIT_OBJECT_0) {
+ return pid;
+ }
+ if (waitres == WAIT_TIMEOUT) {
+ return 0;
+ }
+ return (pid_t)-1;
+}
+
+
+static void
+trim_trailing_whitespaces(char *s)
+{
+ char *e = s + strlen(s);
+ while ((e > s) && isspace((unsigned char)e[-1])) {
+ *(--e) = '\0';
+ }
+}
+
+
+static pid_t
+spawn_process(struct mg_connection *conn,
+ const char *prog,
+ char *envblk,
+ char *envp[],
+ int fdin[2],
+ int fdout[2],
+ int fderr[2],
+ const char *dir)
+{
+ HANDLE me;
+ char *p, *interp, full_interp[PATH_MAX], full_dir[PATH_MAX],
+ cmdline[PATH_MAX], buf[PATH_MAX];
+ int truncated;
+ struct mg_file file = STRUCT_FILE_INITIALIZER;
+ STARTUPINFOA si;
+ PROCESS_INFORMATION pi = {0};
+
+ (void)envp;
+
+ memset(&si, 0, sizeof(si));
+ si.cb = sizeof(si);
+
+ si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
+ si.wShowWindow = SW_HIDE;
+
+ me = GetCurrentProcess();
+ DuplicateHandle(me,
+ (HANDLE)_get_osfhandle(fdin[0]),
+ me,
+ &si.hStdInput,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS);
+ DuplicateHandle(me,
+ (HANDLE)_get_osfhandle(fdout[1]),
+ me,
+ &si.hStdOutput,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS);
+ DuplicateHandle(me,
+ (HANDLE)_get_osfhandle(fderr[1]),
+ me,
+ &si.hStdError,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS);
+
+ /* Mark handles that should not be inherited. See
+ * https://msdn.microsoft.com/en-us/library/windows/desktop/ms682499%28v=vs.85%29.aspx
+ */
+ SetHandleInformation((HANDLE)_get_osfhandle(fdin[1]),
+ HANDLE_FLAG_INHERIT,
+ 0);
+ SetHandleInformation((HANDLE)_get_osfhandle(fdout[0]),
+ HANDLE_FLAG_INHERIT,
+ 0);
+ SetHandleInformation((HANDLE)_get_osfhandle(fderr[0]),
+ HANDLE_FLAG_INHERIT,
+ 0);
+
+ /* If CGI file is a script, try to read the interpreter line */
+ interp = conn->dom_ctx->config[CGI_INTERPRETER];
+ if (interp == NULL) {
+ buf[0] = buf[1] = '\0';
+
+ /* Read the first line of the script into the buffer */
+ mg_snprintf(
+ conn, &truncated, cmdline, sizeof(cmdline), "%s/%s", dir, prog);
+
+ if (truncated) {
+ pi.hProcess = (pid_t)-1;
+ goto spawn_cleanup;
+ }
+
+ if (mg_fopen(conn, cmdline, MG_FOPEN_MODE_READ, &file)) {
+#if defined(MG_USE_OPEN_FILE)
+ p = (char *)file.access.membuf;
+#else
+ p = (char *)NULL;
+#endif
+ mg_fgets(buf, sizeof(buf), &file, &p);
+ (void)mg_fclose(&file.access); /* ignore error on read only file */
+ buf[sizeof(buf) - 1] = '\0';
+ }
+
+ if ((buf[0] == '#') && (buf[1] == '!')) {
+ trim_trailing_whitespaces(buf + 2);
+ } else {
+ buf[2] = '\0';
+ }
+ interp = buf + 2;
+ }
+
+ if (interp[0] != '\0') {
+ GetFullPathNameA(interp, sizeof(full_interp), full_interp, NULL);
+ interp = full_interp;
+ }
+ GetFullPathNameA(dir, sizeof(full_dir), full_dir, NULL);
+
+ if (interp[0] != '\0') {
+ mg_snprintf(conn,
+ &truncated,
+ cmdline,
+ sizeof(cmdline),
+ "\"%s\" \"%s\\%s\"",
+ interp,
+ full_dir,
+ prog);
+ } else {
+ mg_snprintf(conn,
+ &truncated,
+ cmdline,
+ sizeof(cmdline),
+ "\"%s\\%s\"",
+ full_dir,
+ prog);
+ }
+
+ if (truncated) {
+ pi.hProcess = (pid_t)-1;
+ goto spawn_cleanup;
+ }
+
+ DEBUG_TRACE("Running [%s]", cmdline);
+ if (CreateProcessA(NULL,
+ cmdline,
+ NULL,
+ NULL,
+ TRUE,
+ CREATE_NEW_PROCESS_GROUP,
+ envblk,
+ NULL,
+ &si,
+ &pi)
+ == 0) {
+ mg_cry_internal(
+ conn, "%s: CreateProcess(%s): %ld", __func__, cmdline, (long)ERRNO);
+ pi.hProcess = (pid_t)-1;
+ /* goto spawn_cleanup; */
+ }
+
+spawn_cleanup:
+ (void)CloseHandle(si.hStdOutput);
+ (void)CloseHandle(si.hStdError);
+ (void)CloseHandle(si.hStdInput);
+ if (pi.hThread != NULL) {
+ (void)CloseHandle(pi.hThread);
+ }
+
+ return (pid_t)pi.hProcess;
+}
+#endif /* !NO_CGI */
+
+
+static int
+set_blocking_mode(SOCKET sock)
+{
+ unsigned long non_blocking = 0;
+ return ioctlsocket(sock, (long)FIONBIO, &non_blocking);
+}
+
+static int
+set_non_blocking_mode(SOCKET sock)
+{
+ unsigned long non_blocking = 1;
+ return ioctlsocket(sock, (long)FIONBIO, &non_blocking);
+}
+
+#else
+
+static int
+mg_stat(const struct mg_connection *conn,
+ const char *path,
+ struct mg_file_stat *filep)
+{
+ struct stat st;
+ if (!filep) {
+ return 0;
+ }
+ memset(filep, 0, sizeof(*filep));
+
+ if (conn && is_file_in_memory(conn, path)) {
+
+ /* Quick fix (for 1.9.x): */
+ /* mg_stat must fill all fields, also for files in memory */
+ struct mg_file tmp_file = STRUCT_FILE_INITIALIZER;
+ open_file_in_memory(conn, path, &tmp_file, MG_FOPEN_MODE_NONE);
+ filep->size = tmp_file.stat.size;
+ filep->last_modified = time(NULL);
+ filep->location = 2;
+ /* TODO: remove legacy "files in memory" feature */
+
+ return 1;
+ }
+
+ if (0 == stat(path, &st)) {
+ filep->size = (uint64_t)(st.st_size);
+ filep->last_modified = st.st_mtime;
+ filep->is_directory = S_ISDIR(st.st_mode);
+ return 1;
+ }
+
+ return 0;
+}
+
+
+static void
+set_close_on_exec(int fd,
+ const struct mg_connection *conn /* may be null */,
+ struct mg_context *ctx /* may be null */)
+{
+ if (fcntl(fd, F_SETFD, FD_CLOEXEC) != 0) {
+ if (conn || ctx) {
+ struct mg_connection fc;
+ mg_cry_internal((conn ? conn : fake_connection(&fc, ctx)),
+ "%s: fcntl(F_SETFD FD_CLOEXEC) failed: %s",
+ __func__,
+ strerror(ERRNO));
+ }
+ }
+}
+
+
+int
+mg_start_thread(mg_thread_func_t func, void *param)
+{
+ pthread_t thread_id;
+ pthread_attr_t attr;
+ int result;
+
+ (void)pthread_attr_init(&attr);
+ (void)pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+
+#if defined(USE_STACK_SIZE) && (USE_STACK_SIZE > 1)
+ /* Compile-time option to control stack size,
+ * e.g. -DUSE_STACK_SIZE=16384 */
+ (void)pthread_attr_setstacksize(&attr, USE_STACK_SIZE);
+#endif /* defined(USE_STACK_SIZE) && (USE_STACK_SIZE > 1) */
+
+ result = pthread_create(&thread_id, &attr, func, param);
+ pthread_attr_destroy(&attr);
+
+ return result;
+}
+
+
+/* Start a thread storing the thread context. */
+static int
+mg_start_thread_with_id(mg_thread_func_t func,
+ void *param,
+ pthread_t *threadidptr)
+{
+ pthread_t thread_id;
+ pthread_attr_t attr;
+ int result;
+
+ (void)pthread_attr_init(&attr);
+
+#if defined(USE_STACK_SIZE) && (USE_STACK_SIZE > 1)
+ /* Compile-time option to control stack size,
+ * e.g. -DUSE_STACK_SIZE=16384 */
+ (void)pthread_attr_setstacksize(&attr, USE_STACK_SIZE);
+#endif /* defined(USE_STACK_SIZE) && USE_STACK_SIZE > 1 */
+
+ result = pthread_create(&thread_id, &attr, func, param);
+ pthread_attr_destroy(&attr);
+ if ((result == 0) && (threadidptr != NULL)) {
+ *threadidptr = thread_id;
+ }
+ return result;
+}
+
+
+/* Wait for a thread to finish. */
+static int
+mg_join_thread(pthread_t threadid)
+{
+ int result;
+
+ result = pthread_join(threadid, NULL);
+ return result;
+}
+
+
+#if !defined(NO_CGI)
+static pid_t
+spawn_process(struct mg_connection *conn,
+ const char *prog,
+ char *envblk,
+ char *envp[],
+ int fdin[2],
+ int fdout[2],
+ int fderr[2],
+ const char *dir)
+{
+ pid_t pid;
+ const char *interp;
+
+ (void)envblk;
+
+ if ((pid = fork()) == -1) {
+ /* Parent */
+ mg_cry_internal(conn, "%s: fork(): %s", __func__, strerror(ERRNO));
+ } else if (pid != 0) {
+ /* Make sure children close parent-side descriptors.
+ * The caller will close the child-side immediately. */
+ set_close_on_exec(fdin[1], conn, NULL); /* stdin write */
+ set_close_on_exec(fdout[0], conn, NULL); /* stdout read */
+ set_close_on_exec(fderr[0], conn, NULL); /* stderr read */
+ } else {
+ /* Child */
+ if (chdir(dir) != 0) {
+ mg_cry_internal(
+ conn, "%s: chdir(%s): %s", __func__, dir, strerror(ERRNO));
+ } else if (dup2(fdin[0], 0) == -1) {
+ mg_cry_internal(conn,
+ "%s: dup2(%d, 0): %s",
+ __func__,
+ fdin[0],
+ strerror(ERRNO));
+ } else if (dup2(fdout[1], 1) == -1) {
+ mg_cry_internal(conn,
+ "%s: dup2(%d, 1): %s",
+ __func__,
+ fdout[1],
+ strerror(ERRNO));
+ } else if (dup2(fderr[1], 2) == -1) {
+ mg_cry_internal(conn,
+ "%s: dup2(%d, 2): %s",
+ __func__,
+ fderr[1],
+ strerror(ERRNO));
+ } else {
+ struct sigaction sa;
+
+ /* Keep stderr and stdout in two different pipes.
+ * Stdout will be sent back to the client,
+ * stderr should go into a server error log. */
+ (void)close(fdin[0]);
+ (void)close(fdout[1]);
+ (void)close(fderr[1]);
+
+ /* Close write end fdin and read end fdout and fderr */
+ (void)close(fdin[1]);
+ (void)close(fdout[0]);
+ (void)close(fderr[0]);
+
+ /* After exec, all signal handlers are restored to their default
+ * values, with one exception of SIGCHLD. According to
+ * POSIX.1-2001 and Linux's implementation, SIGCHLD's handler
+ * will leave unchanged after exec if it was set to be ignored.
+ * Restore it to default action. */
+ memset(&sa, 0, sizeof(sa));
+ sa.sa_handler = SIG_DFL;
+ sigaction(SIGCHLD, &sa, NULL);
+
+ interp = conn->dom_ctx->config[CGI_INTERPRETER];
+ if (interp == NULL) {
+ (void)execle(prog, prog, NULL, envp);
+ mg_cry_internal(conn,
+ "%s: execle(%s): %s",
+ __func__,
+ prog,
+ strerror(ERRNO));
+ } else {
+ (void)execle(interp, interp, prog, NULL, envp);
+ mg_cry_internal(conn,
+ "%s: execle(%s %s): %s",
+ __func__,
+ interp,
+ prog,
+ strerror(ERRNO));
+ }
+ }
+ exit(EXIT_FAILURE);
+ }
+
+ return pid;
+}
+#endif /* !NO_CGI */
+
+
+static int
+set_non_blocking_mode(SOCKET sock)
+{
+ int flags = fcntl(sock, F_GETFL, 0);
+ if (flags < 0) {
+ return -1;
+ }
+
+ if (fcntl(sock, F_SETFL, (flags | O_NONBLOCK)) < 0) {
+ return -1;
+ }
+ return 0;
+}
+
+static int
+set_blocking_mode(SOCKET sock)
+{
+ int flags = fcntl(sock, F_GETFL, 0);
+ if (flags < 0) {
+ return -1;
+ }
+
+ if (fcntl(sock, F_SETFL, flags & (~(int)(O_NONBLOCK))) < 0) {
+ return -1;
+ }
+ return 0;
+}
+#endif /* _WIN32 / else */
+
+/* End of initial operating system specific define block. */
+
+
+/* Get a random number (independent of C rand function) */
+static uint64_t
+get_random(void)
+{
+ static uint64_t lfsr = 0; /* Linear feedback shift register */
+ static uint64_t lcg = 0; /* Linear congruential generator */
+ uint64_t now = mg_get_current_time_ns();
+
+ if (lfsr == 0) {
+ /* lfsr will be only 0 if has not been initialized,
+ * so this code is called only once. */
+ lfsr = mg_get_current_time_ns();
+ lcg = mg_get_current_time_ns();
+ } else {
+ /* Get the next step of both random number generators. */
+ lfsr = (lfsr >> 1)
+ | ((((lfsr >> 0) ^ (lfsr >> 1) ^ (lfsr >> 3) ^ (lfsr >> 4)) & 1)
+ << 63);
+ lcg = lcg * 6364136223846793005LL + 1442695040888963407LL;
+ }
+
+ /* Combining two pseudo-random number generators and a high resolution
+ * part
+ * of the current server time will make it hard (impossible?) to guess
+ * the
+ * next number. */
+ return (lfsr ^ lcg ^ now);
+}
+
+
+static int
+mg_poll(struct mg_pollfd *pfd,
+ unsigned int n,
+ int milliseconds,
+ volatile int *stop_server)
+{
+ /* Call poll, but only for a maximum time of a few seconds.
+ * This will allow to stop the server after some seconds, instead
+ * of having to wait for a long socket timeout. */
+ int ms_now = SOCKET_TIMEOUT_QUANTUM; /* Sleep quantum in ms */
+
+ do {
+ int result;
+
+ if (*stop_server) {
+ /* Shut down signal */
+ return -2;
+ }
+
+ if ((milliseconds >= 0) && (milliseconds < ms_now)) {
+ ms_now = milliseconds;
+ }
+
+ result = poll(pfd, n, ms_now);
+ if (result != 0) {
+ /* Poll returned either success (1) or error (-1).
+ * Forward both to the caller. */
+ return result;
+ }
+
+ /* Poll returned timeout (0). */
+ if (milliseconds > 0) {
+ milliseconds -= ms_now;
+ }
+
+ } while (milliseconds != 0);
+
+ /* timeout: return 0 */
+ return 0;
+}
+
+
+/* Write data to the IO channel - opened file descriptor, socket or SSL
+ * descriptor.
+ * Return value:
+ * >=0 .. number of bytes successfully written
+ * -1 .. timeout
+ * -2 .. error
+ */
+static int
+push_inner(struct mg_context *ctx,
+ FILE *fp,
+ SOCKET sock,
+ SSL *ssl,
+ const char *buf,
+ int len,
+ double timeout)
+{
+ uint64_t start = 0, now = 0, timeout_ns = 0;
+ int n, err;
+ unsigned ms_wait = SOCKET_TIMEOUT_QUANTUM; /* Sleep quantum in ms */
+
+#if defined(_WIN32)
+ typedef int len_t;
+#else
+ typedef size_t len_t;
+#endif
+
+ if (timeout > 0) {
+ now = mg_get_current_time_ns();
+ start = now;
+ timeout_ns = (uint64_t)(timeout * 1.0E9);
+ }
+
+ if (ctx == NULL) {
+ return -2;
+ }
+
+#if defined(NO_SSL)
+ if (ssl) {
+ return -2;
+ }
+#endif
+
+ /* Try to read until it succeeds, fails, times out, or the server
+ * shuts down. */
+ for (;;) {
+
+#if !defined(NO_SSL)
+ if (ssl != NULL) {
+ n = SSL_write(ssl, buf, len);
+ if (n <= 0) {
+ err = SSL_get_error(ssl, n);
+ if ((err == SSL_ERROR_SYSCALL) && (n == -1)) {
+ err = ERRNO;
+ } else if ((err == SSL_ERROR_WANT_READ)
+ || (err == SSL_ERROR_WANT_WRITE)) {
+ n = 0;
+ } else {
+ DEBUG_TRACE("SSL_write() failed, error %d", err);
+ return -2;
+ }
+ } else {
+ err = 0;
+ }
+ } else
+#endif
+ if (fp != NULL) {
+ n = (int)fwrite(buf, 1, (size_t)len, fp);
+ if (ferror(fp)) {
+ n = -1;
+ err = ERRNO;
+ } else {
+ err = 0;
+ }
+ } else {
+ n = (int)send(sock, buf, (len_t)len, MSG_NOSIGNAL);
+ err = (n < 0) ? ERRNO : 0;
+#if defined(_WIN32)
+ if (err == WSAEWOULDBLOCK) {
+ err = 0;
+ n = 0;
+ }
+#else
+ if (err == EWOULDBLOCK) {
+ err = 0;
+ n = 0;
+ }
+#endif
+ if (n < 0) {
+ /* shutdown of the socket at client side */
+ return -2;
+ }
+ }
+
+ if (ctx->stop_flag) {
+ return -2;
+ }
+
+ if ((n > 0) || ((n == 0) && (len == 0))) {
+ /* some data has been read, or no data was requested */
+ return n;
+ }
+ if (n < 0) {
+ /* socket error - check errno */
+ DEBUG_TRACE("send() failed, error %d", err);
+
+ /* TODO (mid): error handling depending on the error code.
+ * These codes are different between Windows and Linux.
+ * Currently there is no problem with failing send calls,
+ * if there is a reproducible situation, it should be
+ * investigated in detail.
+ */
+ return -2;
+ }
+
+ /* Only in case n=0 (timeout), repeat calling the write function */
+
+ /* If send failed, wait before retry */
+ if (fp != NULL) {
+ /* For files, just wait a fixed time.
+ * Maybe it helps, maybe not. */
+ mg_sleep(5);
+ } else {
+ /* For sockets, wait for the socket using poll */
+ struct mg_pollfd pfd[1];
+ int pollres;
+
+ pfd[0].fd = sock;
+ pfd[0].events = POLLOUT;
+ pollres = mg_poll(pfd, 1, (int)(ms_wait), &(ctx->stop_flag));
+ if (ctx->stop_flag) {
+ return -2;
+ }
+ if (pollres > 0) {
+ continue;
+ }
+ }
+
+ if (timeout > 0) {
+ now = mg_get_current_time_ns();
+ if ((now - start) > timeout_ns) {
+ /* Timeout */
+ break;
+ }
+ }
+ }
+
+ (void)err; /* Avoid unused warning if NO_SSL is set and DEBUG_TRACE is not
+ used */
+
+ return -1;
+}
+
+
+static int
+push_all(struct mg_context *ctx,
+ FILE *fp,
+ SOCKET sock,
+ SSL *ssl,
+ const char *buf,
+ int len)
+{
+ double timeout = -1.0;
+ int n, nwritten = 0;
+
+ if (ctx == NULL) {
+ return -1;
+ }
+
+ if (ctx->dd.config[REQUEST_TIMEOUT]) {
+ timeout = atoi(ctx->dd.config[REQUEST_TIMEOUT]) / 1000.0;
+ }
+
+ while ((len > 0) && (ctx->stop_flag == 0)) {
+ n = push_inner(ctx, fp, sock, ssl, buf + nwritten, len, timeout);
+ if (n < 0) {
+ if (nwritten == 0) {
+ nwritten = -1; /* Propagate the error */
+ }
+ break;
+ } else if (n == 0) {
+ break; /* No more data to write */
+ } else {
+ nwritten += n;
+ len -= n;
+ }
+ }
+
+ return nwritten;
+}
+
+
+/* Read from IO channel - opened file descriptor, socket, or SSL descriptor.
+ * Return value:
+ * >=0 .. number of bytes successfully read
+ * -1 .. timeout
+ * -2 .. error
+ */
+static int
+pull_inner(FILE *fp,
+ struct mg_connection *conn,
+ char *buf,
+ int len,
+ double timeout)
+{
+ int nread, err = 0;
+
+#if defined(_WIN32)
+ typedef int len_t;
+#else
+ typedef size_t len_t;
+#endif
+#if !defined(NO_SSL)
+ int ssl_pending;
+#endif
+
+ /* We need an additional wait loop around this, because in some cases
+ * with TLSwe may get data from the socket but not from SSL_read.
+ * In this case we need to repeat at least once.
+ */
+
+ if (fp != NULL) {
+#if !defined(_WIN32_WCE)
+ /* Use read() instead of fread(), because if we're reading from the
+ * CGI pipe, fread() may block until IO buffer is filled up. We
+ * cannot afford to block and must pass all read bytes immediately
+ * to the client. */
+ nread = (int)read(fileno(fp), buf, (size_t)len);
+#else
+ /* WinCE does not support CGI pipes */
+ nread = (int)fread(buf, 1, (size_t)len, fp);
+#endif
+ err = (nread < 0) ? ERRNO : 0;
+ if ((nread == 0) && (len > 0)) {
+ /* Should get data, but got EOL */
+ return -2;
+ }
+
+#if !defined(NO_SSL)
+ } else if ((conn->ssl != NULL)
+ && ((ssl_pending = SSL_pending(conn->ssl)) > 0)) {
+ /* We already know there is no more data buffered in conn->buf
+ * but there is more available in the SSL layer. So don't poll
+ * conn->client.sock yet. */
+ if (ssl_pending > len) {
+ ssl_pending = len;
+ }
+ nread = SSL_read(conn->ssl, buf, ssl_pending);
+ if (nread <= 0) {
+ err = SSL_get_error(conn->ssl, nread);
+ if ((err == SSL_ERROR_SYSCALL) && (nread == -1)) {
+ err = ERRNO;
+ } else if ((err == SSL_ERROR_WANT_READ)
+ || (err == SSL_ERROR_WANT_WRITE)) {
+ nread = 0;
+ } else {
+ /* All errors should return -2 */
+ DEBUG_TRACE("SSL_read() failed, error %d", err);
+ return -2;
+ }
+
+ ERR_clear_error();
+ } else {
+ err = 0;
+ }
+
+ } else if (conn->ssl != NULL) {
+
+ struct mg_pollfd pfd[1];
+ int pollres;
+
+ pfd[0].fd = conn->client.sock;
+ pfd[0].events = POLLIN;
+ pollres = mg_poll(pfd,
+ 1,
+ (int)(timeout * 1000.0),
+ &(conn->phys_ctx->stop_flag));
+ if (conn->phys_ctx->stop_flag) {
+ return -2;
+ }
+ if (pollres > 0) {
+ nread = SSL_read(conn->ssl, buf, len);
+ if (nread <= 0) {
+ err = SSL_get_error(conn->ssl, nread);
+ if ((err == SSL_ERROR_SYSCALL) && (nread == -1)) {
+ err = ERRNO;
+ } else if ((err == SSL_ERROR_WANT_READ)
+ || (err == SSL_ERROR_WANT_WRITE)) {
+ nread = 0;
+ } else {
+ DEBUG_TRACE("SSL_read() failed, error %d", err);
+ return -2;
+ }
+ } else {
+ err = 0;
+ }
+ ERR_clear_error();
+ } else if (pollres < 0) {
+ /* Error */
+ return -2;
+ } else {
+ /* pollres = 0 means timeout */
+ nread = 0;
+ }
+#endif
+
+ } else {
+ struct mg_pollfd pfd[1];
+ int pollres;
+
+ pfd[0].fd = conn->client.sock;
+ pfd[0].events = POLLIN;
+ pollres = mg_poll(pfd,
+ 1,
+ (int)(timeout * 1000.0),
+ &(conn->phys_ctx->stop_flag));
+ if (conn->phys_ctx->stop_flag) {
+ return -2;
+ }
+ if (pollres > 0) {
+ nread = (int)recv(conn->client.sock, buf, (len_t)len, 0);
+ err = (nread < 0) ? ERRNO : 0;
+ if (nread <= 0) {
+ /* shutdown of the socket at client side */
+ return -2;
+ }
+ } else if (pollres < 0) {
+ /* error callint poll */
+ return -2;
+ } else {
+ /* pollres = 0 means timeout */
+ nread = 0;
+ }
+ }
+
+ if (conn->phys_ctx->stop_flag) {
+ return -2;
+ }
+
+ if ((nread > 0) || ((nread == 0) && (len == 0))) {
+ /* some data has been read, or no data was requested */
+ return nread;
+ }
+
+ if (nread < 0) {
+/* socket error - check errno */
+#if defined(_WIN32)
+ if (err == WSAEWOULDBLOCK) {
+ /* TODO (low): check if this is still required */
+ /* standard case if called from close_socket_gracefully */
+ return -2;
+ } else if (err == WSAETIMEDOUT) {
+ /* TODO (low): check if this is still required */
+ /* timeout is handled by the while loop */
+ return 0;
+ } else if (err == WSAECONNABORTED) {
+ /* See https://www.chilkatsoft.com/p/p_299.asp */
+ return -2;
+ } else {
+ DEBUG_TRACE("recv() failed, error %d", err);
+ return -2;
+ }
+#else
+ /* TODO: POSIX returns either EAGAIN or EWOULDBLOCK in both cases,
+ * if the timeout is reached and if the socket was set to non-
+ * blocking in close_socket_gracefully, so we can not distinguish
+ * here. We have to wait for the timeout in both cases for now.
+ */
+ if ((err == EAGAIN) || (err == EWOULDBLOCK) || (err == EINTR)) {
+ /* TODO (low): check if this is still required */
+ /* EAGAIN/EWOULDBLOCK:
+ * standard case if called from close_socket_gracefully
+ * => should return -1 */
+ /* or timeout occurred
+ * => the code must stay in the while loop */
+
+ /* EINTR can be generated on a socket with a timeout set even
+ * when SA_RESTART is effective for all relevant signals
+ * (see signal(7)).
+ * => stay in the while loop */
+ } else {
+ DEBUG_TRACE("recv() failed, error %d", err);
+ return -2;
+ }
+#endif
+ }
+
+ /* Timeout occurred, but no data available. */
+ return -1;
+}
+
+
+static int
+pull_all(FILE *fp, struct mg_connection *conn, char *buf, int len)
+{
+ int n, nread = 0;
+ double timeout = -1.0;
+ uint64_t start_time = 0, now = 0, timeout_ns = 0;
+
+ if (conn->dom_ctx->config[REQUEST_TIMEOUT]) {
+ timeout = atoi(conn->dom_ctx->config[REQUEST_TIMEOUT]) / 1000.0;
+ }
+ if (timeout >= 0.0) {
+ start_time = mg_get_current_time_ns();
+ timeout_ns = (uint64_t)(timeout * 1.0E9);
+ }
+
+ while ((len > 0) && (conn->phys_ctx->stop_flag == 0)) {
+ n = pull_inner(fp, conn, buf + nread, len, timeout);
+ if (n == -2) {
+ if (nread == 0) {
+ nread = -1; /* Propagate the error */
+ }
+ break;
+ } else if (n == -1) {
+ /* timeout */
+ if (timeout >= 0.0) {
+ now = mg_get_current_time_ns();
+ if ((now - start_time) <= timeout_ns) {
+ continue;
+ }
+ }
+ break;
+ } else if (n == 0) {
+ break; /* No more data to read */
+ } else {
+ nread += n;
+ len -= n;
+ }
+ }
+
+ return nread;
+}
+
+
+static void
+discard_unread_request_data(struct mg_connection *conn)
+{
+ char buf[MG_BUF_LEN];
+
+ while (mg_read(conn, buf, sizeof(buf)) > 0)
+ ;
+}
+
+
+static int
+mg_read_inner(struct mg_connection *conn, void *buf, size_t len)
+{
+ int64_t content_len, n, buffered_len, nread;
+ int64_t len64 =
+ (int64_t)((len > INT_MAX) ? INT_MAX : len); /* since the return value is
+ * int, we may not read more
+ * bytes */
+ const char *body;
+
+ if (conn == NULL) {
+ return 0;
+ }
+
+ /* If Content-Length is not set for a response with body data,
+ * we do not know in advance how much data should be read. */
+ content_len = conn->content_len;
+ if (content_len < 0) {
+ /* The body data is completed when the connection is closed. */
+ content_len = INT64_MAX;
+ }
+
+ nread = 0;
+ if (conn->consumed_content < content_len) {
+ /* Adjust number of bytes to read. */
+ int64_t left_to_read = content_len - conn->consumed_content;
+ if (left_to_read < len64) {
+ /* Do not read more than the total content length of the
+ * request.
+ */
+ len64 = left_to_read;
+ }
+
+ /* Return buffered data */
+ buffered_len = (int64_t)(conn->data_len) - (int64_t)conn->request_len
+ - conn->consumed_content;
+ if (buffered_len > 0) {
+ if (len64 < buffered_len) {
+ buffered_len = len64;
+ }
+ body = conn->buf + conn->request_len + conn->consumed_content;
+ memcpy(buf, body, (size_t)buffered_len);
+ len64 -= buffered_len;
+ conn->consumed_content += buffered_len;
+ nread += buffered_len;
+ buf = (char *)buf + buffered_len;
+ }
+
+ /* We have returned all buffered data. Read new data from the remote
+ * socket.
+ */
+ if ((n = pull_all(NULL, conn, (char *)buf, (int)len64)) >= 0) {
+ conn->consumed_content += n;
+ nread += n;
+ } else {
+ nread = ((nread > 0) ? nread : n);
+ }
+ }
+ return (int)nread;
+}
+
+
+int
+mg_read(struct mg_connection *conn, void *buf, size_t len)
+{
+ if (len > INT_MAX) {
+ len = INT_MAX;
+ }
+
+ if (conn == NULL) {
+ return 0;
+ }
+
+ if (conn->is_chunked) {
+ size_t all_read = 0;
+
+ while (len > 0) {
+ if (conn->is_chunked >= 3) {
+ /* No more data left to read */
+ return 0;
+ }
+ if (conn->is_chunked != 1) {
+ /* Has error */
+ return -1;
+ }
+
+ if (conn->consumed_content != conn->content_len) {
+ /* copy from the current chunk */
+ int read_ret = mg_read_inner(conn, (char *)buf + all_read, len);
+
+ if (read_ret < 1) {
+ /* read error */
+ conn->is_chunked = 2;
+ return -1;
+ }
+
+ all_read += (size_t)read_ret;
+ len -= (size_t)read_ret;
+
+ if (conn->consumed_content == conn->content_len) {
+ /* Add data bytes in the current chunk have been read,
+ * so we are expecting \r\n now. */
+ char x[2];
+ conn->content_len += 2;
+ if ((mg_read_inner(conn, x, 2) != 2) || (x[0] != '\r')
+ || (x[1] != '\n')) {
+ /* Protocol violation */
+ conn->is_chunked = 2;
+ return -1;
+ }
+ }
+
+ } else {
+ /* fetch a new chunk */
+ size_t i;
+ char lenbuf[64];
+ char *end = NULL;
+ unsigned long chunkSize = 0;
+
+ for (i = 0; i < (sizeof(lenbuf) - 1); i++) {
+ conn->content_len++;
+ if (mg_read_inner(conn, lenbuf + i, 1) != 1) {
+ lenbuf[i] = 0;
+ }
+ if ((i > 0) && (lenbuf[i] == '\r')
+ && (lenbuf[i - 1] != '\r')) {
+ continue;
+ }
+ if ((i > 1) && (lenbuf[i] == '\n')
+ && (lenbuf[i - 1] == '\r')) {
+ lenbuf[i + 1] = 0;
+ chunkSize = strtoul(lenbuf, &end, 16);
+ if (chunkSize == 0) {
+ /* regular end of content */
+ conn->is_chunked = 3;
+ }
+ break;
+ }
+ if (!isxdigit((unsigned char)lenbuf[i])) {
+ /* illegal character for chunk length */
+ conn->is_chunked = 2;
+ return -1;
+ }
+ }
+ if ((end == NULL) || (*end != '\r')) {
+ /* chunksize not set correctly */
+ conn->is_chunked = 2;
+ return -1;
+ }
+ if (chunkSize == 0) {
+ /* try discarding trailer for keep-alive */
+ conn->content_len += 2;
+ if ((mg_read_inner(conn, lenbuf, 2) == 2)
+ && (lenbuf[0] == '\r') && (lenbuf[1] == '\n')) {
+ conn->is_chunked = 4;
+ }
+ break;
+ }
+
+ /* append a new chunk */
+ conn->content_len += chunkSize;
+ }
+ }
+
+ return (int)all_read;
+ }
+ return mg_read_inner(conn, buf, len);
+}
+
+
+int
+mg_write(struct mg_connection *conn, const void *buf, size_t len)
+{
+ time_t now;
+ int n, total, allowed;
+
+ if (conn == NULL) {
+ return 0;
+ }
+ if (len > INT_MAX) {
+ return -1;
+ }
+
+ if (conn->throttle > 0) {
+ if ((now = time(NULL)) != conn->last_throttle_time) {
+ conn->last_throttle_time = now;
+ conn->last_throttle_bytes = 0;
+ }
+ allowed = conn->throttle - conn->last_throttle_bytes;
+ if (allowed > (int)len) {
+ allowed = (int)len;
+ }
+ if ((total = push_all(conn->phys_ctx,
+ NULL,
+ conn->client.sock,
+ conn->ssl,
+ (const char *)buf,
+ allowed))
+ == allowed) {
+ buf = (const char *)buf + total;
+ conn->last_throttle_bytes += total;
+ while ((total < (int)len) && (conn->phys_ctx->stop_flag == 0)) {
+ allowed = (conn->throttle > ((int)len - total))
+ ? (int)len - total
+ : conn->throttle;
+ if ((n = push_all(conn->phys_ctx,
+ NULL,
+ conn->client.sock,
+ conn->ssl,
+ (const char *)buf,
+ allowed))
+ != allowed) {
+ break;
+ }
+ sleep(1);
+ conn->last_throttle_bytes = allowed;
+ conn->last_throttle_time = time(NULL);
+ buf = (const char *)buf + n;
+ total += n;
+ }
+ }
+ } else {
+ total = push_all(conn->phys_ctx,
+ NULL,
+ conn->client.sock,
+ conn->ssl,
+ (const char *)buf,
+ (int)len);
+ }
+ if (total > 0) {
+ conn->num_bytes_sent += total;
+ }
+ return total;
+}
+
+
+/* Send a chunk, if "Transfer-Encoding: chunked" is used */
+int
+mg_send_chunk(struct mg_connection *conn,
+ const char *chunk,
+ unsigned int chunk_len)
+{
+ char lenbuf[16];
+ size_t lenbuf_len;
+ int ret;
+ int t;
+
+ /* First store the length information in a text buffer. */
+ sprintf(lenbuf, "%x\r\n", chunk_len);
+ lenbuf_len = strlen(lenbuf);
+
+ /* Then send length information, chunk and terminating \r\n. */
+ ret = mg_write(conn, lenbuf, lenbuf_len);
+ if (ret != (int)lenbuf_len) {
+ return -1;
+ }
+ t = ret;
+
+ ret = mg_write(conn, chunk, chunk_len);
+ if (ret != (int)chunk_len) {
+ return -1;
+ }
+ t += ret;
+
+ ret = mg_write(conn, "\r\n", 2);
+ if (ret != 2) {
+ return -1;
+ }
+ t += ret;
+
+ return t;
+}
+
+
+#if defined(GCC_DIAGNOSTIC)
+/* This block forwards format strings to printf implementations,
+ * so we need to disable the format-nonliteral warning. */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"
+#endif
+
+
+/* Alternative alloc_vprintf() for non-compliant C runtimes */
+static int
+alloc_vprintf2(char **buf, const char *fmt, va_list ap)
+{
+ va_list ap_copy;
+ size_t size = MG_BUF_LEN / 4;
+ int len = -1;
+
+ *buf = NULL;
+ while (len < 0) {
+ if (*buf) {
+ mg_free(*buf);
+ }
+
+ size *= 4;
+ *buf = (char *)mg_malloc(size);
+ if (!*buf) {
+ break;
+ }
+
+ va_copy(ap_copy, ap);
+ len = vsnprintf_impl(*buf, size - 1, fmt, ap_copy);
+ va_end(ap_copy);
+ (*buf)[size - 1] = 0;
+ }
+
+ return len;
+}
+
+
+/* Print message to buffer. If buffer is large enough to hold the message,
+ * return buffer. If buffer is to small, allocate large enough buffer on
+ * heap,
+ * and return allocated buffer. */
+static int
+alloc_vprintf(char **out_buf,
+ char *prealloc_buf,
+ size_t prealloc_size,
+ const char *fmt,
+ va_list ap)
+{
+ va_list ap_copy;
+ int len;
+
+ /* Windows is not standard-compliant, and vsnprintf() returns -1 if
+ * buffer is too small. Also, older versions of msvcrt.dll do not have
+ * _vscprintf(). However, if size is 0, vsnprintf() behaves correctly.
+ * Therefore, we make two passes: on first pass, get required message
+ * length.
+ * On second pass, actually print the message. */
+ va_copy(ap_copy, ap);
+ len = vsnprintf_impl(NULL, 0, fmt, ap_copy);
+ va_end(ap_copy);
+
+ if (len < 0) {
+ /* C runtime is not standard compliant, vsnprintf() returned -1.
+ * Switch to alternative code path that uses incremental
+ * allocations.
+ */
+ va_copy(ap_copy, ap);
+ len = alloc_vprintf2(out_buf, fmt, ap_copy);
+ va_end(ap_copy);
+
+ } else if ((size_t)(len) >= prealloc_size) {
+ /* The pre-allocated buffer not large enough. */
+ /* Allocate a new buffer. */
+ *out_buf = (char *)mg_malloc((size_t)(len) + 1);
+ if (!*out_buf) {
+ /* Allocation failed. Return -1 as "out of memory" error. */
+ return -1;
+ }
+ /* Buffer allocation successful. Store the string there. */
+ va_copy(ap_copy, ap);
+ IGNORE_UNUSED_RESULT(
+ vsnprintf_impl(*out_buf, (size_t)(len) + 1, fmt, ap_copy));
+ va_end(ap_copy);
+
+ } else {
+ /* The pre-allocated buffer is large enough.
+ * Use it to store the string and return the address. */
+ va_copy(ap_copy, ap);
+ IGNORE_UNUSED_RESULT(
+ vsnprintf_impl(prealloc_buf, prealloc_size, fmt, ap_copy));
+ va_end(ap_copy);
+ *out_buf = prealloc_buf;
+ }
+
+ return len;
+}
+
+
+#if defined(GCC_DIAGNOSTIC)
+/* Enable format-nonliteral warning again. */
+#pragma GCC diagnostic pop
+#endif
+
+
+static int
+mg_vprintf(struct mg_connection *conn, const char *fmt, va_list ap)
+{
+ char mem[MG_BUF_LEN];
+ char *buf = NULL;
+ int len;
+
+ if ((len = alloc_vprintf(&buf, mem, sizeof(mem), fmt, ap)) > 0) {
+ len = mg_write(conn, buf, (size_t)len);
+ }
+ if (buf != mem) {
+ mg_free(buf);
+ }
+
+ return len;
+}
+
+
+int
+mg_printf(struct mg_connection *conn, const char *fmt, ...)
+{
+ va_list ap;
+ int result;
+
+ va_start(ap, fmt);
+ result = mg_vprintf(conn, fmt, ap);
+ va_end(ap);
+
+ return result;
+}
+
+
+int
+mg_url_decode(const char *src,
+ int src_len,
+ char *dst,
+ int dst_len,
+ int is_form_url_encoded)
+{
+ int i, j, a, b;
+#define HEXTOI(x) (isdigit(x) ? (x - '0') : (x - 'W'))
+
+ for (i = j = 0; (i < src_len) && (j < (dst_len - 1)); i++, j++) {
+ if ((i < src_len - 2) && (src[i] == '%')
+ && isxdigit((unsigned char)src[i + 1])
+ && isxdigit((unsigned char)src[i + 2])) {
+ a = tolower((unsigned char)src[i + 1]);
+ b = tolower((unsigned char)src[i + 2]);
+ dst[j] = (char)((HEXTOI(a) << 4) | HEXTOI(b));
+ i += 2;
+ } else if (is_form_url_encoded && (src[i] == '+')) {
+ dst[j] = ' ';
+ } else {
+ dst[j] = src[i];
+ }
+ }
+
+ dst[j] = '\0'; /* Null-terminate the destination */
+
+ return (i >= src_len) ? j : -1;
+}
+
+
+int
+mg_get_var(const char *data,
+ size_t data_len,
+ const char *name,
+ char *dst,
+ size_t dst_len)
+{
+ return mg_get_var2(data, data_len, name, dst, dst_len, 0);
+}
+
+
+int
+mg_get_var2(const char *data,
+ size_t data_len,
+ const char *name,
+ char *dst,
+ size_t dst_len,
+ size_t occurrence)
+{
+ const char *p, *e, *s;
+ size_t name_len;
+ int len;
+
+ if ((dst == NULL) || (dst_len == 0)) {
+ len = -2;
+ } else if ((data == NULL) || (name == NULL) || (data_len == 0)) {
+ len = -1;
+ dst[0] = '\0';
+ } else {
+ name_len = strlen(name);
+ e = data + data_len;
+ len = -1;
+ dst[0] = '\0';
+
+ /* data is "var1=val1&var2=val2...". Find variable first */
+ for (p = data; p + name_len < e; p++) {
+ if (((p == data) || (p[-1] == '&')) && (p[name_len] == '=')
+ && !mg_strncasecmp(name, p, name_len) && 0 == occurrence--) {
+ /* Point p to variable value */
+ p += name_len + 1;
+
+ /* Point s to the end of the value */
+ s = (const char *)memchr(p, '&', (size_t)(e - p));
+ if (s == NULL) {
+ s = e;
+ }
+ DEBUG_ASSERT(s >= p);
+ if (s < p) {
+ return -3;
+ }
+
+ /* Decode variable into destination buffer */
+ len = mg_url_decode(p, (int)(s - p), dst, (int)dst_len, 1);
+
+ /* Redirect error code from -1 to -2 (destination buffer too
+ * small). */
+ if (len == -1) {
+ len = -2;
+ }
+ break;
+ }
+ }
+ }
+
+ return len;
+}
+
+
+/* HCP24: some changes to compare hole var_name */
+int
+mg_get_cookie(const char *cookie_header,
+ const char *var_name,
+ char *dst,
+ size_t dst_size)
+{
+ const char *s, *p, *end;
+ int name_len, len = -1;
+
+ if ((dst == NULL) || (dst_size == 0)) {
+ return -2;
+ }
+
+ dst[0] = '\0';
+ if ((var_name == NULL) || ((s = cookie_header) == NULL)) {
+ return -1;
+ }
+
+ name_len = (int)strlen(var_name);
+ end = s + strlen(s);
+ for (; (s = mg_strcasestr(s, var_name)) != NULL; s += name_len) {
+ if (s[name_len] == '=') {
+ /* HCP24: now check is it a substring or a full cookie name */
+ if ((s == cookie_header) || (s[-1] == ' ')) {
+ s += name_len + 1;
+ if ((p = strchr(s, ' ')) == NULL) {
+ p = end;
+ }
+ if (p[-1] == ';') {
+ p--;
+ }
+ if ((*s == '"') && (p[-1] == '"') && (p > s + 1)) {
+ s++;
+ p--;
+ }
+ if ((size_t)(p - s) < dst_size) {
+ len = (int)(p - s);
+ mg_strlcpy(dst, s, (size_t)len + 1);
+ } else {
+ len = -3;
+ }
+ break;
+ }
+ }
+ }
+ return len;
+}
+
+
+#if defined(USE_WEBSOCKET) || defined(USE_LUA)
+static void
+base64_encode(const unsigned char *src, int src_len, char *dst)
+{
+ static const char *b64 =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+ int i, j, a, b, c;
+
+ for (i = j = 0; i < src_len; i += 3) {
+ a = src[i];
+ b = ((i + 1) >= src_len) ? 0 : src[i + 1];
+ c = ((i + 2) >= src_len) ? 0 : src[i + 2];
+
+ dst[j++] = b64[a >> 2];
+ dst[j++] = b64[((a & 3) << 4) | (b >> 4)];
+ if (i + 1 < src_len) {
+ dst[j++] = b64[(b & 15) << 2 | (c >> 6)];
+ }
+ if (i + 2 < src_len) {
+ dst[j++] = b64[c & 63];
+ }
+ }
+ while (j % 4 != 0) {
+ dst[j++] = '=';
+ }
+ dst[j++] = '\0';
+}
+#endif
+
+
+#if defined(USE_LUA)
+static unsigned char
+b64reverse(char letter)
+{
+ if ((letter >= 'A') && (letter <= 'Z')) {
+ return letter - 'A';
+ }
+ if ((letter >= 'a') && (letter <= 'z')) {
+ return letter - 'a' + 26;
+ }
+ if ((letter >= '0') && (letter <= '9')) {
+ return letter - '0' + 52;
+ }
+ if (letter == '+') {
+ return 62;
+ }
+ if (letter == '/') {
+ return 63;
+ }
+ if (letter == '=') {
+ return 255; /* normal end */
+ }
+ return 254; /* error */
+}
+
+
+static int
+base64_decode(const unsigned char *src, int src_len, char *dst, size_t *dst_len)
+{
+ int i;
+ unsigned char a, b, c, d;
+
+ *dst_len = 0;
+
+ for (i = 0; i < src_len; i += 4) {
+ a = b64reverse(src[i]);
+ if (a >= 254) {
+ return i;
+ }
+
+ b = b64reverse(((i + 1) >= src_len) ? 0 : src[i + 1]);
+ if (b >= 254) {
+ return i + 1;
+ }
+
+ c = b64reverse(((i + 2) >= src_len) ? 0 : src[i + 2]);
+ if (c == 254) {
+ return i + 2;
+ }
+
+ d = b64reverse(((i + 3) >= src_len) ? 0 : src[i + 3]);
+ if (d == 254) {
+ return i + 3;
+ }
+
+ dst[(*dst_len)++] = (a << 2) + (b >> 4);
+ if (c != 255) {
+ dst[(*dst_len)++] = (b << 4) + (c >> 2);
+ if (d != 255) {
+ dst[(*dst_len)++] = (c << 6) + d;
+ }
+ }
+ }
+ return -1;
+}
+#endif
+
+
+static int
+is_put_or_delete_method(const struct mg_connection *conn)
+{
+ if (conn) {
+ const char *s = conn->request_info.request_method;
+ return (s != NULL)
+ && (!strcmp(s, "PUT") || !strcmp(s, "DELETE")
+ || !strcmp(s, "MKCOL") || !strcmp(s, "PATCH"));
+ }
+ return 0;
+}
+
+
+#if !defined(NO_FILES)
+static int
+extention_matches_script(
+ struct mg_connection *conn, /* in: request (must be valid) */
+ const char *filename /* in: filename (must be valid) */
+)
+{
+#if !defined(NO_CGI)
+ if (match_prefix(conn->dom_ctx->config[CGI_EXTENSIONS],
+ strlen(conn->dom_ctx->config[CGI_EXTENSIONS]),
+ filename)
+ > 0) {
+ return 1;
+ }
+#endif
+#if defined(USE_LUA)
+ if (match_prefix(conn->dom_ctx->config[LUA_SCRIPT_EXTENSIONS],
+ strlen(conn->dom_ctx->config[LUA_SCRIPT_EXTENSIONS]),
+ filename)
+ > 0) {
+ return 1;
+ }
+#endif
+#if defined(USE_DUKTAPE)
+ if (match_prefix(conn->dom_ctx->config[DUKTAPE_SCRIPT_EXTENSIONS],
+ strlen(conn->dom_ctx->config[DUKTAPE_SCRIPT_EXTENSIONS]),
+ filename)
+ > 0) {
+ return 1;
+ }
+#endif
+ /* filename and conn could be unused, if all preocessor conditions
+ * are false (no script language supported). */
+ (void)filename;
+ (void)conn;
+
+ return 0;
+}
+
+
+/* For given directory path, substitute it to valid index file.
+ * Return 1 if index file has been found, 0 if not found.
+ * If the file is found, it's stats is returned in stp. */
+static int
+substitute_index_file(struct mg_connection *conn,
+ char *path,
+ size_t path_len,
+ struct mg_file_stat *filestat)
+{
+ const char *list = conn->dom_ctx->config[INDEX_FILES];
+ struct vec filename_vec;
+ size_t n = strlen(path);
+ int found = 0;
+
+ /* The 'path' given to us points to the directory. Remove all trailing
+ * directory separator characters from the end of the path, and
+ * then append single directory separator character. */
+ while ((n > 0) && (path[n - 1] == '/')) {
+ n--;
+ }
+ path[n] = '/';
+
+ /* Traverse index files list. For each entry, append it to the given
+ * path and see if the file exists. If it exists, break the loop */
+ while ((list = next_option(list, &filename_vec, NULL)) != NULL) {
+ /* Ignore too long entries that may overflow path buffer */
+ if ((filename_vec.len + 1) > (path_len - (n + 1))) {
+ continue;
+ }
+
+ /* Prepare full path to the index file */
+ mg_strlcpy(path + n + 1, filename_vec.ptr, filename_vec.len + 1);
+
+ /* Does it exist? */
+ if (mg_stat(conn, path, filestat)) {
+ /* Yes it does, break the loop */
+ found = 1;
+ break;
+ }
+ }
+
+ /* If no index file exists, restore directory path */
+ if (!found) {
+ path[n] = '\0';
+ }
+
+ return found;
+}
+#endif
+
+
+static void
+interpret_uri(struct mg_connection *conn, /* in/out: request (must be valid) */
+ char *filename, /* out: filename */
+ size_t filename_buf_len, /* in: size of filename buffer */
+ struct mg_file_stat *filestat, /* out: file status structure */
+ int *is_found, /* out: file found (directly) */
+ int *is_script_resource, /* out: handled by a script? */
+ int *is_websocket_request, /* out: websocket connetion? */
+ int *is_put_or_delete_request /* out: put/delete a file? */
+)
+{
+ char const *accept_encoding;
+
+#if !defined(NO_FILES)
+ const char *uri = conn->request_info.local_uri;
+ const char *root = conn->dom_ctx->config[DOCUMENT_ROOT];
+ const char *rewrite;
+ struct vec a, b;
+ ptrdiff_t match_len;
+ char gz_path[PATH_MAX];
+ int truncated;
+#if !defined(NO_CGI) || defined(USE_LUA) || defined(USE_DUKTAPE)
+ char *tmp_str;
+ size_t tmp_str_len, sep_pos;
+ int allow_substitute_script_subresources;
+#endif
+#else
+ (void)filename_buf_len; /* unused if NO_FILES is defined */
+#endif
+
+ /* Step 1: Set all initially unknown outputs to zero */
+ memset(filestat, 0, sizeof(*filestat));
+ *filename = 0;
+ *is_found = 0;
+ *is_script_resource = 0;
+
+ /* Step 2: Check if the request attempts to modify the file system */
+ *is_put_or_delete_request = is_put_or_delete_method(conn);
+
+/* Step 3: Check if it is a websocket request, and modify the document
+ * root if required */
+#if defined(USE_WEBSOCKET)
+ *is_websocket_request = is_websocket_protocol(conn);
+#if !defined(NO_FILES)
+ if (*is_websocket_request && conn->dom_ctx->config[WEBSOCKET_ROOT]) {
+ root = conn->dom_ctx->config[WEBSOCKET_ROOT];
+ }
+#endif /* !NO_FILES */
+#else /* USE_WEBSOCKET */
+ *is_websocket_request = 0;
+#endif /* USE_WEBSOCKET */
+
+ /* Step 4: Check if gzip encoded response is allowed */
+ conn->accept_gzip = 0;
+ if ((accept_encoding = mg_get_header(conn, "Accept-Encoding")) != NULL) {
+ if (strstr(accept_encoding, "gzip") != NULL) {
+ conn->accept_gzip = 1;
+ }
+ }
+
+#if !defined(NO_FILES)
+ /* Step 5: If there is no root directory, don't look for files. */
+ /* Note that root == NULL is a regular use case here. This occurs,
+ * if all requests are handled by callbacks, so the WEBSOCKET_ROOT
+ * config is not required. */
+ if (root == NULL) {
+ /* all file related outputs have already been set to 0, just return
+ */
+ return;
+ }
+
+ /* Step 6: Determine the local file path from the root path and the
+ * request uri. */
+ /* Using filename_buf_len - 1 because memmove() for PATH_INFO may shift
+ * part of the path one byte on the right. */
+ mg_snprintf(
+ conn, &truncated, filename, filename_buf_len - 1, "%s%s", root, uri);
+
+ if (truncated) {
+ goto interpret_cleanup;
+ }
+
+ /* Step 7: URI rewriting */
+ rewrite = conn->dom_ctx->config[URL_REWRITE_PATTERN];
+ while ((rewrite = next_option(rewrite, &a, &b)) != NULL) {
+ if ((match_len = match_prefix(a.ptr, a.len, uri)) > 0) {
+ mg_snprintf(conn,
+ &truncated,
+ filename,
+ filename_buf_len - 1,
+ "%.*s%s",
+ (int)b.len,
+ b.ptr,
+ uri + match_len);
+ break;
+ }
+ }
+
+ if (truncated) {
+ goto interpret_cleanup;
+ }
+
+ /* Step 8: Check if the file exists at the server */
+ /* Local file path and name, corresponding to requested URI
+ * is now stored in "filename" variable. */
+ if (mg_stat(conn, filename, filestat)) {
+ int uri_len = (int)strlen(uri);
+ int is_uri_end_slash = (uri_len > 0) && (uri[uri_len - 1] == '/');
+
+ /* 8.1: File exists. */
+ *is_found = 1;
+
+ /* 8.2: Check if it is a script type. */
+ if (extention_matches_script(conn, filename)) {
+ /* The request addresses a CGI resource, Lua script or
+ * server-side javascript.
+ * The URI corresponds to the script itself (like
+ * /path/script.cgi), and there is no additional resource
+ * path (like /path/script.cgi/something).
+ * Requests that modify (replace or delete) a resource, like
+ * PUT and DELETE requests, should replace/delete the script
+ * file.
+ * Requests that read or write from/to a resource, like GET and
+ * POST requests, should call the script and return the
+ * generated response. */
+ *is_script_resource = (!*is_put_or_delete_request);
+ }
+
+ /* 8.3: If the request target is a directory, there could be
+ * a substitute file (index.html, index.cgi, ...). */
+ if (filestat->is_directory && is_uri_end_slash) {
+ /* Use a local copy here, since substitute_index_file will
+ * change the content of the file status */
+ struct mg_file_stat tmp_filestat;
+ memset(&tmp_filestat, 0, sizeof(tmp_filestat));
+
+ if (substitute_index_file(
+ conn, filename, filename_buf_len, &tmp_filestat)) {
+
+ /* Substitute file found. Copy stat to the output, then
+ * check if the file is a script file */
+ *filestat = tmp_filestat;
+
+ if (extention_matches_script(conn, filename)) {
+ /* Substitute file is a script file */
+ *is_script_resource = 1;
+ } else {
+ /* Substitute file is a regular file */
+ *is_script_resource = 0;
+ *is_found = (mg_stat(conn, filename, filestat) ? 1 : 0);
+ }
+ }
+ /* If there is no substitute file, the server could return
+ * a directory listing in a later step */
+ }
+ return;
+ }
+
+ /* Step 9: Check for zipped files: */
+ /* If we can't find the actual file, look for the file
+ * with the same name but a .gz extension. If we find it,
+ * use that and set the gzipped flag in the file struct
+ * to indicate that the response need to have the content-
+ * encoding: gzip header.
+ * We can only do this if the browser declares support. */
+ if (conn->accept_gzip) {
+ mg_snprintf(
+ conn, &truncated, gz_path, sizeof(gz_path), "%s.gz", filename);
+
+ if (truncated) {
+ goto interpret_cleanup;
+ }
+
+ if (mg_stat(conn, gz_path, filestat)) {
+ if (filestat) {
+ filestat->is_gzipped = 1;
+ *is_found = 1;
+ }
+ /* Currently gz files can not be scripts. */
+ return;
+ }
+ }
+
+#if !defined(NO_CGI) || defined(USE_LUA) || defined(USE_DUKTAPE)
+ /* Step 10: Script resources may handle sub-resources */
+ /* Support PATH_INFO for CGI scripts. */
+ tmp_str_len = strlen(filename);
+ tmp_str = (char *)mg_malloc_ctx(tmp_str_len + PATH_MAX + 1, conn->phys_ctx);
+ if (!tmp_str) {
+ /* Out of memory */
+ goto interpret_cleanup;
+ }
+ memcpy(tmp_str, filename, tmp_str_len + 1);
+
+ /* Check config, if index scripts may have sub-resources */
+ allow_substitute_script_subresources =
+ !mg_strcasecmp(conn->dom_ctx->config[ALLOW_INDEX_SCRIPT_SUB_RES],
+ "yes");
+
+ sep_pos = tmp_str_len;
+ while (sep_pos > 0) {
+ sep_pos--;
+ if (tmp_str[sep_pos] == '/') {
+ int is_script = 0, does_exist = 0;
+
+ tmp_str[sep_pos] = 0;
+ if (tmp_str[0]) {
+ is_script = extention_matches_script(conn, tmp_str);
+ does_exist = mg_stat(conn, tmp_str, filestat);
+ }
+
+ if (does_exist && is_script) {
+ filename[sep_pos] = 0;
+ memmove(filename + sep_pos + 2,
+ filename + sep_pos + 1,
+ strlen(filename + sep_pos + 1) + 1);
+ conn->path_info = filename + sep_pos + 1;
+ filename[sep_pos + 1] = '/';
+ *is_script_resource = 1;
+ *is_found = 1;
+ break;
+ }
+
+ if (allow_substitute_script_subresources) {
+ if (substitute_index_file(
+ conn, tmp_str, tmp_str_len + PATH_MAX, filestat)) {
+
+ /* some intermediate directory has an index file */
+ if (extention_matches_script(conn, tmp_str)) {
+
+ char *tmp_str2;
+
+ DEBUG_TRACE("Substitute script %s serving path %s",
+ tmp_str,
+ filename);
+
+ /* this index file is a script */
+ tmp_str2 = mg_strdup_ctx(filename + sep_pos + 1,
+ conn->phys_ctx);
+ mg_snprintf(conn,
+ &truncated,
+ filename,
+ filename_buf_len,
+ "%s//%s",
+ tmp_str,
+ tmp_str2);
+ mg_free(tmp_str2);
+
+ if (truncated) {
+ mg_free(tmp_str);
+ goto interpret_cleanup;
+ }
+ sep_pos = strlen(tmp_str);
+ filename[sep_pos] = 0;
+ conn->path_info = filename + sep_pos + 1;
+ *is_script_resource = 1;
+ *is_found = 1;
+ break;
+
+ } else {
+
+ DEBUG_TRACE("Substitute file %s serving path %s",
+ tmp_str,
+ filename);
+
+ /* non-script files will not have sub-resources */
+ filename[sep_pos] = 0;
+ conn->path_info = 0;
+ *is_script_resource = 0;
+ *is_found = 0;
+ break;
+ }
+ }
+ }
+
+ tmp_str[sep_pos] = '/';
+ }
+ }
+
+ mg_free(tmp_str);
+
+#endif /* !defined(NO_CGI) || defined(USE_LUA) || defined(USE_DUKTAPE) */
+#endif /* !defined(NO_FILES) */
+ return;
+
+#if !defined(NO_FILES)
+/* Reset all outputs */
+interpret_cleanup:
+ memset(filestat, 0, sizeof(*filestat));
+ *filename = 0;
+ *is_found = 0;
+ *is_script_resource = 0;
+ *is_websocket_request = 0;
+ *is_put_or_delete_request = 0;
+#endif /* !defined(NO_FILES) */
+}
+
+
+/* Check whether full request is buffered. Return:
+ * -1 if request or response is malformed
+ * 0 if request or response is not yet fully buffered
+ * >0 actual request length, including last \r\n\r\n */
+static int
+get_http_header_len(const char *buf, int buflen)
+{
+ int i;
+ for (i = 0; i < buflen; i++) {
+ /* Do an unsigned comparison in some conditions below */
+ const unsigned char c = (unsigned char)buf[i];
+
+ if ((c < 128) && ((char)c != '\r') && ((char)c != '\n')
+ && !isprint(c)) {
+ /* abort scan as soon as one malformed character is found */
+ return -1;
+ }
+
+ if (i < buflen - 1) {
+ if ((buf[i] == '\n') && (buf[i + 1] == '\n')) {
+ /* Two newline, no carriage return - not standard compliant,
+ * but
+ * it
+ * should be accepted */
+ return i + 2;
+ }
+ }
+
+ if (i < buflen - 3) {
+ if ((buf[i] == '\r') && (buf[i + 1] == '\n') && (buf[i + 2] == '\r')
+ && (buf[i + 3] == '\n')) {
+ /* Two \r\n - standard compliant */
+ return i + 4;
+ }
+ }
+ }
+
+ return 0;
+}
+
+
+#if !defined(NO_CACHING)
+/* Convert month to the month number. Return -1 on error, or month number */
+static int
+get_month_index(const char *s)
+{
+ size_t i;
+
+ for (i = 0; i < ARRAY_SIZE(month_names); i++) {
+ if (!strcmp(s, month_names[i])) {
+ return (int)i;
+ }
+ }
+
+ return -1;
+}
+
+
+/* Parse UTC date-time string, and return the corresponding time_t value. */
+static time_t
+parse_date_string(const char *datetime)
+{
+ char month_str[32] = {0};
+ int second, minute, hour, day, month, year;
+ time_t result = (time_t)0;
+ struct tm tm;
+
+ if ((sscanf(datetime,
+ "%d/%3s/%d %d:%d:%d",
+ &day,
+ month_str,
+ &year,
+ &hour,
+ &minute,
+ &second)
+ == 6)
+ || (sscanf(datetime,
+ "%d %3s %d %d:%d:%d",
+ &day,
+ month_str,
+ &year,
+ &hour,
+ &minute,
+ &second)
+ == 6)
+ || (sscanf(datetime,
+ "%*3s, %d %3s %d %d:%d:%d",
+ &day,
+ month_str,
+ &year,
+ &hour,
+ &minute,
+ &second)
+ == 6)
+ || (sscanf(datetime,
+ "%d-%3s-%d %d:%d:%d",
+ &day,
+ month_str,
+ &year,
+ &hour,
+ &minute,
+ &second)
+ == 6)) {
+ month = get_month_index(month_str);
+ if ((month >= 0) && (year >= 1970)) {
+ memset(&tm, 0, sizeof(tm));
+ tm.tm_year = year - 1900;
+ tm.tm_mon = month;
+ tm.tm_mday = day;
+ tm.tm_hour = hour;
+ tm.tm_min = minute;
+ tm.tm_sec = second;
+ result = timegm(&tm);
+ }
+ }
+
+ return result;
+}
+#endif /* !NO_CACHING */
+
+
+/* Protect against directory disclosure attack by removing '..',
+ * excessive '/' and '\' characters */
+static void
+remove_double_dots_and_double_slashes(char *s)
+{
+ char *p = s;
+
+ while ((s[0] == '.') && (s[1] == '.')) {
+ s++;
+ }
+
+ while (*s != '\0') {
+ *p++ = *s++;
+ if ((s[-1] == '/') || (s[-1] == '\\')) {
+ /* Skip all following slashes, backslashes and double-dots */
+ while (s[0] != '\0') {
+ if ((s[0] == '/') || (s[0] == '\\')) {
+ s++;
+ } else if ((s[0] == '.') && (s[1] == '.')) {
+ s += 2;
+ } else {
+ break;
+ }
+ }
+ }
+ }
+ *p = '\0';
+}
+
+
+static const struct {
+ const char *extension;
+ size_t ext_len;
+ const char *mime_type;
+} builtin_mime_types[] = {
+ /* IANA registered MIME types
+ * (http://www.iana.org/assignments/media-types)
+ * application types */
+ {".doc", 4, "application/msword"},
+ {".eps", 4, "application/postscript"},
+ {".exe", 4, "application/octet-stream"},
+ {".js", 3, "application/javascript"},
+ {".json", 5, "application/json"},
+ {".pdf", 4, "application/pdf"},
+ {".ps", 3, "application/postscript"},
+ {".rtf", 4, "application/rtf"},
+ {".xhtml", 6, "application/xhtml+xml"},
+ {".xsl", 4, "application/xml"},
+ {".xslt", 5, "application/xml"},
+
+ /* fonts */
+ {".ttf", 4, "application/font-sfnt"},
+ {".cff", 4, "application/font-sfnt"},
+ {".otf", 4, "application/font-sfnt"},
+ {".aat", 4, "application/font-sfnt"},
+ {".sil", 4, "application/font-sfnt"},
+ {".pfr", 4, "application/font-tdpfr"},
+ {".woff", 5, "application/font-woff"},
+
+ /* audio */
+ {".mp3", 4, "audio/mpeg"},
+ {".oga", 4, "audio/ogg"},
+ {".ogg", 4, "audio/ogg"},
+
+ /* image */
+ {".gif", 4, "image/gif"},
+ {".ief", 4, "image/ief"},
+ {".jpeg", 5, "image/jpeg"},
+ {".jpg", 4, "image/jpeg"},
+ {".jpm", 4, "image/jpm"},
+ {".jpx", 4, "image/jpx"},
+ {".png", 4, "image/png"},
+ {".svg", 4, "image/svg+xml"},
+ {".tif", 4, "image/tiff"},
+ {".tiff", 5, "image/tiff"},
+
+ /* model */
+ {".wrl", 4, "model/vrml"},
+
+ /* text */
+ {".css", 4, "text/css"},
+ {".csv", 4, "text/csv"},
+ {".htm", 4, "text/html"},
+ {".html", 5, "text/html"},
+ {".sgm", 4, "text/sgml"},
+ {".shtm", 5, "text/html"},
+ {".shtml", 6, "text/html"},
+ {".txt", 4, "text/plain"},
+ {".xml", 4, "text/xml"},
+
+ /* video */
+ {".mov", 4, "video/quicktime"},
+ {".mp4", 4, "video/mp4"},
+ {".mpeg", 5, "video/mpeg"},
+ {".mpg", 4, "video/mpeg"},
+ {".ogv", 4, "video/ogg"},
+ {".qt", 3, "video/quicktime"},
+
+ /* not registered types
+ * (http://reference.sitepoint.com/html/mime-types-full,
+ * http://www.hansenb.pdx.edu/DMKB/dict/tutorials/mime_typ.php, ..) */
+ {".arj", 4, "application/x-arj-compressed"},
+ {".gz", 3, "application/x-gunzip"},
+ {".rar", 4, "application/x-arj-compressed"},
+ {".swf", 4, "application/x-shockwave-flash"},
+ {".tar", 4, "application/x-tar"},
+ {".tgz", 4, "application/x-tar-gz"},
+ {".torrent", 8, "application/x-bittorrent"},
+ {".ppt", 4, "application/x-mspowerpoint"},
+ {".xls", 4, "application/x-msexcel"},
+ {".zip", 4, "application/x-zip-compressed"},
+ {".aac",
+ 4,
+ "audio/aac"}, /* http://en.wikipedia.org/wiki/Advanced_Audio_Coding */
+ {".aif", 4, "audio/x-aif"},
+ {".m3u", 4, "audio/x-mpegurl"},
+ {".mid", 4, "audio/x-midi"},
+ {".ra", 3, "audio/x-pn-realaudio"},
+ {".ram", 4, "audio/x-pn-realaudio"},
+ {".wav", 4, "audio/x-wav"},
+ {".bmp", 4, "image/bmp"},
+ {".ico", 4, "image/x-icon"},
+ {".pct", 4, "image/x-pct"},
+ {".pict", 5, "image/pict"},
+ {".rgb", 4, "image/x-rgb"},
+ {".webm", 5, "video/webm"}, /* http://en.wikipedia.org/wiki/WebM */
+ {".asf", 4, "video/x-ms-asf"},
+ {".avi", 4, "video/x-msvideo"},
+ {".m4v", 4, "video/x-m4v"},
+ {NULL, 0, NULL}};
+
+
+const char *
+mg_get_builtin_mime_type(const char *path)
+{
+ const char *ext;
+ size_t i, path_len;
+
+ path_len = strlen(path);
+
+ for (i = 0; builtin_mime_types[i].extension != NULL; i++) {
+ ext = path + (path_len - builtin_mime_types[i].ext_len);
+ if ((path_len > builtin_mime_types[i].ext_len)
+ && (mg_strcasecmp(ext, builtin_mime_types[i].extension) == 0)) {
+ return builtin_mime_types[i].mime_type;
+ }
+ }
+
+ return "text/plain";
+}
+
+
+/* Look at the "path" extension and figure what mime type it has.
+ * Store mime type in the vector. */
+static void
+get_mime_type(struct mg_connection *conn, const char *path, struct vec *vec)
+{
+ struct vec ext_vec, mime_vec;
+ const char *list, *ext;
+ size_t path_len;
+
+ path_len = strlen(path);
+
+ if ((conn == NULL) || (vec == NULL)) {
+ if (vec != NULL) {
+ memset(vec, '\0', sizeof(struct vec));
+ }
+ return;
+ }
+
+ /* Scan user-defined mime types first, in case user wants to
+ * override default mime types. */
+ list = conn->dom_ctx->config[EXTRA_MIME_TYPES];
+ while ((list = next_option(list, &ext_vec, &mime_vec)) != NULL) {
+ /* ext now points to the path suffix */
+ ext = path + path_len - ext_vec.len;
+ if (mg_strncasecmp(ext, ext_vec.ptr, ext_vec.len) == 0) {
+ *vec = mime_vec;
+ return;
+ }
+ }
+
+ vec->ptr = mg_get_builtin_mime_type(path);
+ vec->len = strlen(vec->ptr);
+}
+
+
+/* Stringify binary data. Output buffer must be twice as big as input,
+ * because each byte takes 2 bytes in string representation */
+static void
+bin2str(char *to, const unsigned char *p, size_t len)
+{
+ static const char *hex = "0123456789abcdef";
+
+ for (; len--; p++) {
+ *to++ = hex[p[0] >> 4];
+ *to++ = hex[p[0] & 0x0f];
+ }
+ *to = '\0';
+}
+
+
+/* Return stringified MD5 hash for list of strings. Buffer must be 33 bytes.
+ */
+char *
+mg_md5(char buf[33], ...)
+{
+ md5_byte_t hash[16];
+ const char *p;
+ va_list ap;
+ md5_state_t ctx;
+
+ md5_init(&ctx);
+
+ va_start(ap, buf);
+ while ((p = va_arg(ap, const char *)) != NULL) {
+ md5_append(&ctx, (const md5_byte_t *)p, strlen(p));
+ }
+ va_end(ap);
+
+ md5_finish(&ctx, hash);
+ bin2str(buf, hash, sizeof(hash));
+ return buf;
+}
+
+
+/* Check the user's password, return 1 if OK */
+static int
+check_password(const char *method,
+ const char *ha1,
+ const char *uri,
+ const char *nonce,
+ const char *nc,
+ const char *cnonce,
+ const char *qop,
+ const char *response)
+{
+ char ha2[32 + 1], expected_response[32 + 1];
+
+ /* Some of the parameters may be NULL */
+ if ((method == NULL) || (nonce == NULL) || (nc == NULL) || (cnonce == NULL)
+ || (qop == NULL) || (response == NULL)) {
+ return 0;
+ }
+
+ /* NOTE(lsm): due to a bug in MSIE, we do not compare the URI */
+ if (strlen(response) != 32) {
+ return 0;
+ }
+
+ mg_md5(ha2, method, ":", uri, NULL);
+ mg_md5(expected_response,
+ ha1,
+ ":",
+ nonce,
+ ":",
+ nc,
+ ":",
+ cnonce,
+ ":",
+ qop,
+ ":",
+ ha2,
+ NULL);
+
+ return mg_strcasecmp(response, expected_response) == 0;
+}
+
+
+/* Use the global passwords file, if specified by auth_gpass option,
+ * or search for .htpasswd in the requested directory. */
+static void
+open_auth_file(struct mg_connection *conn,
+ const char *path,
+ struct mg_file *filep)
+{
+ if ((conn != NULL) && (conn->dom_ctx != NULL)) {
+ char name[PATH_MAX];
+ const char *p, *e,
+ *gpass = conn->dom_ctx->config[GLOBAL_PASSWORDS_FILE];
+ int truncated;
+
+ if (gpass != NULL) {
+ /* Use global passwords file */
+ if (!mg_fopen(conn, gpass, MG_FOPEN_MODE_READ, filep)) {
+#if defined(DEBUG)
+ /* Use mg_cry_internal here, since gpass has been configured. */
+ mg_cry_internal(conn, "fopen(%s): %s", gpass, strerror(ERRNO));
+#endif
+ }
+ /* Important: using local struct mg_file to test path for
+ * is_directory flag. If filep is used, mg_stat() makes it
+ * appear as if auth file was opened.
+ * TODO(mid): Check if this is still required after rewriting
+ * mg_stat */
+ } else if (mg_stat(conn, path, &filep->stat)
+ && filep->stat.is_directory) {
+ mg_snprintf(conn,
+ &truncated,
+ name,
+ sizeof(name),
+ "%s/%s",
+ path,
+ PASSWORDS_FILE_NAME);
+
+ if (truncated || !mg_fopen(conn, name, MG_FOPEN_MODE_READ, filep)) {
+#if defined(DEBUG)
+ /* Don't use mg_cry_internal here, but only a trace, since this
+ * is
+ * a typical case. It will occur for every directory
+ * without a password file. */
+ DEBUG_TRACE("fopen(%s): %s", name, strerror(ERRNO));
+#endif
+ }
+ } else {
+ /* Try to find .htpasswd in requested directory. */
+ for (p = path, e = p + strlen(p) - 1; e > p; e--) {
+ if (e[0] == '/') {
+ break;
+ }
+ }
+ mg_snprintf(conn,
+ &truncated,
+ name,
+ sizeof(name),
+ "%.*s/%s",
+ (int)(e - p),
+ p,
+ PASSWORDS_FILE_NAME);
+
+ if (truncated || !mg_fopen(conn, name, MG_FOPEN_MODE_READ, filep)) {
+#if defined(DEBUG)
+ /* Don't use mg_cry_internal here, but only a trace, since this
+ * is
+ * a typical case. It will occur for every directory
+ * without a password file. */
+ DEBUG_TRACE("fopen(%s): %s", name, strerror(ERRNO));
+#endif
+ }
+ }
+ }
+}
+
+
+/* Parsed Authorization header */
+struct ah {
+ char *user, *uri, *cnonce, *response, *qop, *nc, *nonce;
+};
+
+
+/* Return 1 on success. Always initializes the ah structure. */
+static int
+parse_auth_header(struct mg_connection *conn,
+ char *buf,
+ size_t buf_size,
+ struct ah *ah)
+{
+ char *name, *value, *s;
+ const char *auth_header;
+ uint64_t nonce;
+
+ if (!ah || !conn) {
+ return 0;
+ }
+
+ (void)memset(ah, 0, sizeof(*ah));
+ if (((auth_header = mg_get_header(conn, "Authorization")) == NULL)
+ || mg_strncasecmp(auth_header, "Digest ", 7) != 0) {
+ return 0;
+ }
+
+ /* Make modifiable copy of the auth header */
+ (void)mg_strlcpy(buf, auth_header + 7, buf_size);
+ s = buf;
+
+ /* Parse authorization header */
+ for (;;) {
+ /* Gobble initial spaces */
+ while (isspace((unsigned char)*s)) {
+ s++;
+ }
+ name = skip_quoted(&s, "=", " ", 0);
+ /* Value is either quote-delimited, or ends at first comma or space.
+ */
+ if (s[0] == '\"') {
+ s++;
+ value = skip_quoted(&s, "\"", " ", '\\');
+ if (s[0] == ',') {
+ s++;
+ }
+ } else {
+ value = skip_quoted(&s, ", ", " ", 0); /* IE uses commas, FF uses
+ * spaces */
+ }
+ if (*name == '\0') {
+ break;
+ }
+
+ if (!strcmp(name, "username")) {
+ ah->user = value;
+ } else if (!strcmp(name, "cnonce")) {
+ ah->cnonce = value;
+ } else if (!strcmp(name, "response")) {
+ ah->response = value;
+ } else if (!strcmp(name, "uri")) {
+ ah->uri = value;
+ } else if (!strcmp(name, "qop")) {
+ ah->qop = value;
+ } else if (!strcmp(name, "nc")) {
+ ah->nc = value;
+ } else if (!strcmp(name, "nonce")) {
+ ah->nonce = value;
+ }
+ }
+
+#if !defined(NO_NONCE_CHECK)
+ /* Read the nonce from the response. */
+ if (ah->nonce == NULL) {
+ return 0;
+ }
+ s = NULL;
+ nonce = strtoull(ah->nonce, &s, 10);
+ if ((s == NULL) || (*s != 0)) {
+ return 0;
+ }
+
+ /* Convert the nonce from the client to a number. */
+ nonce ^= conn->dom_ctx->auth_nonce_mask;
+
+ /* The converted number corresponds to the time the nounce has been
+ * created. This should not be earlier than the server start. */
+ /* Server side nonce check is valuable in all situations but one:
+ * if the server restarts frequently, but the client should not see
+ * that, so the server should accept nonces from previous starts. */
+ /* However, the reasonable default is to not accept a nonce from a
+ * previous start, so if anyone changed the access rights between
+ * two restarts, a new login is required. */
+ if (nonce < (uint64_t)conn->phys_ctx->start_time) {
+ /* nonce is from a previous start of the server and no longer valid
+ * (replay attack?) */
+ return 0;
+ }
+ /* Check if the nonce is too high, so it has not (yet) been used by the
+ * server. */
+ if (nonce >= ((uint64_t)conn->phys_ctx->start_time
+ + conn->dom_ctx->nonce_count)) {
+ return 0;
+ }
+#else
+ (void)nonce;
+#endif
+
+ /* CGI needs it as REMOTE_USER */
+ if (ah->user != NULL) {
+ conn->request_info.remote_user =
+ mg_strdup_ctx(ah->user, conn->phys_ctx);
+ } else {
+ return 0;
+ }
+
+ return 1;
+}
+
+
+static const char *
+mg_fgets(char *buf, size_t size, struct mg_file *filep, char **p)
+{
+#if defined(MG_USE_OPEN_FILE)
+ const char *eof;
+ size_t len;
+ const char *memend;
+#else
+ (void)p; /* parameter is unused */
+#endif
+
+ if (!filep) {
+ return NULL;
+ }
+
+#if defined(MG_USE_OPEN_FILE)
+ if ((filep->access.membuf != NULL) && (*p != NULL)) {
+ memend = (const char *)&filep->access.membuf[filep->stat.size];
+ /* Search for \n from p till the end of stream */
+ eof = (char *)memchr(*p, '\n', (size_t)(memend - *p));
+ if (eof != NULL) {
+ eof += 1; /* Include \n */
+ } else {
+ eof = memend; /* Copy remaining data */
+ }
+ len =
+ ((size_t)(eof - *p) > (size - 1)) ? (size - 1) : (size_t)(eof - *p);
+ memcpy(buf, *p, len);
+ buf[len] = '\0';
+ *p += len;
+ return len ? eof : NULL;
+ } else /* filep->access.fp block below */
+#endif
+ if (filep->access.fp != NULL) {
+ return fgets(buf, (int)size, filep->access.fp);
+ } else {
+ return NULL;
+ }
+}
+
+/* Define the initial recursion depth for procesesing htpasswd files that
+ * include other htpasswd
+ * (or even the same) files. It is not difficult to provide a file or files
+ * s.t. they force civetweb
+ * to infinitely recurse and then crash.
+ */
+#define INITIAL_DEPTH 9
+#if INITIAL_DEPTH <= 0
+#error Bad INITIAL_DEPTH for recursion, set to at least 1
+#endif
+
+struct read_auth_file_struct {
+ struct mg_connection *conn;
+ struct ah ah;
+ const char *domain;
+ char buf[256 + 256 + 40];
+ const char *f_user;
+ const char *f_domain;
+ const char *f_ha1;
+};
+
+
+static int
+read_auth_file(struct mg_file *filep,
+ struct read_auth_file_struct *workdata,
+ int depth)
+{
+ char *p = NULL /* init if MG_USE_OPEN_FILE is not set */;
+ int is_authorized = 0;
+ struct mg_file fp;
+ size_t l;
+
+ if (!filep || !workdata || (0 == depth)) {
+ return 0;
+ }
+
+/* Loop over passwords file */
+#if defined(MG_USE_OPEN_FILE)
+ p = (char *)filep->access.membuf;
+#endif
+ while (mg_fgets(workdata->buf, sizeof(workdata->buf), filep, &p) != NULL) {
+ l = strlen(workdata->buf);
+ while (l > 0) {
+ if (isspace((unsigned char)workdata->buf[l - 1])
+ || iscntrl((unsigned char)workdata->buf[l - 1])) {
+ l--;
+ workdata->buf[l] = 0;
+ } else
+ break;
+ }
+ if (l < 1) {
+ continue;
+ }
+
+ workdata->f_user = workdata->buf;
+
+ if (workdata->f_user[0] == ':') {
+ /* user names may not contain a ':' and may not be empty,
+ * so lines starting with ':' may be used for a special purpose
+ */
+ if (workdata->f_user[1] == '#') {
+ /* :# is a comment */
+ continue;
+ } else if (!strncmp(workdata->f_user + 1, "include=", 8)) {
+ if (mg_fopen(workdata->conn,
+ workdata->f_user + 9,
+ MG_FOPEN_MODE_READ,
+ &fp)) {
+ is_authorized = read_auth_file(&fp, workdata, depth - 1);
+ (void)mg_fclose(
+ &fp.access); /* ignore error on read only file */
+
+ /* No need to continue processing files once we have a
+ * match, since nothing will reset it back
+ * to 0.
+ */
+ if (is_authorized) {
+ return is_authorized;
+ }
+ } else {
+ mg_cry_internal(workdata->conn,
+ "%s: cannot open authorization file: %s",
+ __func__,
+ workdata->buf);
+ }
+ continue;
+ }
+ /* everything is invalid for the moment (might change in the
+ * future) */
+ mg_cry_internal(workdata->conn,
+ "%s: syntax error in authorization file: %s",
+ __func__,
+ workdata->buf);
+ continue;
+ }
+
+ workdata->f_domain = strchr(workdata->f_user, ':');
+ if (workdata->f_domain == NULL) {
+ mg_cry_internal(workdata->conn,
+ "%s: syntax error in authorization file: %s",
+ __func__,
+ workdata->buf);
+ continue;
+ }
+ *(char *)(workdata->f_domain) = 0;
+ (workdata->f_domain)++;
+
+ workdata->f_ha1 = strchr(workdata->f_domain, ':');
+ if (workdata->f_ha1 == NULL) {
+ mg_cry_internal(workdata->conn,
+ "%s: syntax error in authorization file: %s",
+ __func__,
+ workdata->buf);
+ continue;
+ }
+ *(char *)(workdata->f_ha1) = 0;
+ (workdata->f_ha1)++;
+
+ if (!strcmp(workdata->ah.user, workdata->f_user)
+ && !strcmp(workdata->domain, workdata->f_domain)) {
+ return check_password(workdata->conn->request_info.request_method,
+ workdata->f_ha1,
+ workdata->ah.uri,
+ workdata->ah.nonce,
+ workdata->ah.nc,
+ workdata->ah.cnonce,
+ workdata->ah.qop,
+ workdata->ah.response);
+ }
+ }
+
+ return is_authorized;
+}
+
+
+/* Authorize against the opened passwords file. Return 1 if authorized. */
+static int
+authorize(struct mg_connection *conn, struct mg_file *filep, const char *realm)
+{
+ struct read_auth_file_struct workdata;
+ char buf[MG_BUF_LEN];
+
+ if (!conn || !conn->dom_ctx) {
+ return 0;
+ }
+
+ memset(&workdata, 0, sizeof(workdata));
+ workdata.conn = conn;
+
+ if (!parse_auth_header(conn, buf, sizeof(buf), &workdata.ah)) {
+ return 0;
+ }
+
+ if (realm) {
+ workdata.domain = realm;
+ } else {
+ workdata.domain = conn->dom_ctx->config[AUTHENTICATION_DOMAIN];
+ }
+
+ return read_auth_file(filep, &workdata, INITIAL_DEPTH);
+}
+
+
+/* Public function to check http digest authentication header */
+int
+mg_check_digest_access_authentication(struct mg_connection *conn,
+ const char *realm,
+ const char *filename)
+{
+ struct mg_file file = STRUCT_FILE_INITIALIZER;
+ int auth;
+
+ if (!conn || !filename) {
+ return -1;
+ }
+ if (!mg_fopen(conn, filename, MG_FOPEN_MODE_READ, &file)) {
+ return -2;
+ }
+
+ auth = authorize(conn, &file, realm);
+
+ mg_fclose(&file.access);
+
+ return auth;
+}
+
+
+/* Return 1 if request is authorised, 0 otherwise. */
+static int
+check_authorization(struct mg_connection *conn, const char *path)
+{
+ char fname[PATH_MAX];
+ struct vec uri_vec, filename_vec;
+ const char *list;
+ struct mg_file file = STRUCT_FILE_INITIALIZER;
+ int authorized = 1, truncated;
+
+ if (!conn || !conn->dom_ctx) {
+ return 0;
+ }
+
+ list = conn->dom_ctx->config[PROTECT_URI];
+ while ((list = next_option(list, &uri_vec, &filename_vec)) != NULL) {
+ if (!memcmp(conn->request_info.local_uri, uri_vec.ptr, uri_vec.len)) {
+ mg_snprintf(conn,
+ &truncated,
+ fname,
+ sizeof(fname),
+ "%.*s",
+ (int)filename_vec.len,
+ filename_vec.ptr);
+
+ if (truncated
+ || !mg_fopen(conn, fname, MG_FOPEN_MODE_READ, &file)) {
+ mg_cry_internal(conn,
+ "%s: cannot open %s: %s",
+ __func__,
+ fname,
+ strerror(errno));
+ }
+ break;
+ }
+ }
+
+ if (!is_file_opened(&file.access)) {
+ open_auth_file(conn, path, &file);
+ }
+
+ if (is_file_opened(&file.access)) {
+ authorized = authorize(conn, &file, NULL);
+ (void)mg_fclose(&file.access); /* ignore error on read only file */
+ }
+
+ return authorized;
+}
+
+
+/* Internal function. Assumes conn is valid */
+static void
+send_authorization_request(struct mg_connection *conn, const char *realm)
+{
+ char date[64];
+ time_t curtime = time(NULL);
+ uint64_t nonce = (uint64_t)(conn->phys_ctx->start_time);
+
+ if (!realm) {
+ realm = conn->dom_ctx->config[AUTHENTICATION_DOMAIN];
+ }
+
+ (void)pthread_mutex_lock(&conn->phys_ctx->nonce_mutex);
+ nonce += conn->dom_ctx->nonce_count;
+ ++conn->dom_ctx->nonce_count;
+ (void)pthread_mutex_unlock(&conn->phys_ctx->nonce_mutex);
+
+ nonce ^= conn->dom_ctx->auth_nonce_mask;
+ conn->status_code = 401;
+ conn->must_close = 1;
+
+ gmt_time_string(date, sizeof(date), &curtime);
+
+ mg_printf(conn, "HTTP/1.1 401 Unauthorized\r\n");
+ send_no_cache_header(conn);
+ send_additional_header(conn);
+ mg_printf(conn,
+ "Date: %s\r\n"
+ "Connection: %s\r\n"
+ "Content-Length: 0\r\n"
+ "WWW-Authenticate: Digest qop=\"auth\", realm=\"%s\", "
+ "nonce=\"%" UINT64_FMT "\"\r\n\r\n",
+ date,
+ suggest_connection_header(conn),
+ realm,
+ nonce);
+}
+
+
+/* Interface function. Parameters are provided by the user, so do
+ * at least some basic checks.
+ */
+int
+mg_send_digest_access_authentication_request(struct mg_connection *conn,
+ const char *realm)
+{
+ if (conn && conn->dom_ctx) {
+ send_authorization_request(conn, realm);
+ return 0;
+ }
+ return -1;
+}
+
+
+#if !defined(NO_FILES)
+static int
+is_authorized_for_put(struct mg_connection *conn)
+{
+ if (conn) {
+ struct mg_file file = STRUCT_FILE_INITIALIZER;
+ const char *passfile = conn->dom_ctx->config[PUT_DELETE_PASSWORDS_FILE];
+ int ret = 0;
+
+ if (passfile != NULL
+ && mg_fopen(conn, passfile, MG_FOPEN_MODE_READ, &file)) {
+ ret = authorize(conn, &file, NULL);
+ (void)mg_fclose(&file.access); /* ignore error on read only file */
+ }
+
+ return ret;
+ }
+ return 0;
+}
+#endif
+
+
+int
+mg_modify_passwords_file(const char *fname,
+ const char *domain,
+ const char *user,
+ const char *pass)
+{
+ int found, i;
+ char line[512], u[512] = "", d[512] = "", ha1[33], tmp[PATH_MAX + 8];
+ FILE *fp, *fp2;
+
+ found = 0;
+ fp = fp2 = NULL;
+
+ /* Regard empty password as no password - remove user record. */
+ if ((pass != NULL) && (pass[0] == '\0')) {
+ pass = NULL;
+ }
+
+ /* Other arguments must not be empty */
+ if ((fname == NULL) || (domain == NULL) || (user == NULL)) {
+ return 0;
+ }
+
+ /* Using the given file format, user name and domain must not contain
+ * ':'
+ */
+ if (strchr(user, ':') != NULL) {
+ return 0;
+ }
+ if (strchr(domain, ':') != NULL) {
+ return 0;
+ }
+
+ /* Do not allow control characters like newline in user name and domain.
+ * Do not allow excessively long names either. */
+ for (i = 0; ((i < 255) && (user[i] != 0)); i++) {
+ if (iscntrl((unsigned char)user[i])) {
+ return 0;
+ }
+ }
+ if (user[i]) {
+ return 0;
+ }
+ for (i = 0; ((i < 255) && (domain[i] != 0)); i++) {
+ if (iscntrl((unsigned char)domain[i])) {
+ return 0;
+ }
+ }
+ if (domain[i]) {
+ return 0;
+ }
+
+ /* The maximum length of the path to the password file is limited */
+ if ((strlen(fname) + 4) >= PATH_MAX) {
+ return 0;
+ }
+
+ /* Create a temporary file name. Length has been checked before. */
+ strcpy(tmp, fname);
+ strcat(tmp, ".tmp");
+
+ /* Create the file if does not exist */
+ /* Use of fopen here is OK, since fname is only ASCII */
+ if ((fp = fopen(fname, "a+")) != NULL) {
+ (void)fclose(fp);
+ }
+
+ /* Open the given file and temporary file */
+ if ((fp = fopen(fname, "r")) == NULL) {
+ return 0;
+ } else if ((fp2 = fopen(tmp, "w+")) == NULL) {
+ fclose(fp);
+ return 0;
+ }
+
+ /* Copy the stuff to temporary file */
+ while (fgets(line, sizeof(line), fp) != NULL) {
+ if (sscanf(line, "%255[^:]:%255[^:]:%*s", u, d) != 2) {
+ continue;
+ }
+ u[255] = 0;
+ d[255] = 0;
+
+ if (!strcmp(u, user) && !strcmp(d, domain)) {
+ found++;
+ if (pass != NULL) {
+ mg_md5(ha1, user, ":", domain, ":", pass, NULL);
+ fprintf(fp2, "%s:%s:%s\n", user, domain, ha1);
+ }
+ } else {
+ fprintf(fp2, "%s", line);
+ }
+ }
+
+ /* If new user, just add it */
+ if (!found && (pass != NULL)) {
+ mg_md5(ha1, user, ":", domain, ":", pass, NULL);
+ fprintf(fp2, "%s:%s:%s\n", user, domain, ha1);
+ }
+
+ /* Close files */
+ fclose(fp);
+ fclose(fp2);
+
+ /* Put the temp file in place of real file */
+ IGNORE_UNUSED_RESULT(remove(fname));
+ IGNORE_UNUSED_RESULT(rename(tmp, fname));
+
+ return 1;
+}
+
+
+static int
+is_valid_port(unsigned long port)
+{
+ return (port <= 0xffff);
+}
+
+
+static int
+mg_inet_pton(int af, const char *src, void *dst, size_t dstlen)
+{
+ struct addrinfo hints, *res, *ressave;
+ int func_ret = 0;
+ int gai_ret;
+
+ memset(&hints, 0, sizeof(struct addrinfo));
+ hints.ai_family = af;
+
+ gai_ret = getaddrinfo(src, NULL, &hints, &res);
+ if (gai_ret != 0) {
+ /* gai_strerror could be used to convert gai_ret to a string */
+ /* POSIX return values: see
+ * http://pubs.opengroup.org/onlinepubs/9699919799/functions/freeaddrinfo.html
+ */
+ /* Windows return values: see
+ * https://msdn.microsoft.com/en-us/library/windows/desktop/ms738520%28v=vs.85%29.aspx
+ */
+ return 0;
+ }
+
+ ressave = res;
+
+ while (res) {
+ if (dstlen >= (size_t)res->ai_addrlen) {
+ memcpy(dst, res->ai_addr, res->ai_addrlen);
+ func_ret = 1;
+ }
+ res = res->ai_next;
+ }
+
+ freeaddrinfo(ressave);
+ return func_ret;
+}
+
+
+static int
+connect_socket(struct mg_context *ctx /* may be NULL */,
+ const char *host,
+ int port,
+ int use_ssl,
+ char *ebuf,
+ size_t ebuf_len,
+ SOCKET *sock /* output: socket, must not be NULL */,
+ union usa *sa /* output: socket address, must not be NULL */
+)
+{
+ int ip_ver = 0;
+ int conn_ret = -1;
+ int sockerr = 0;
+ *sock = INVALID_SOCKET;
+ memset(sa, 0, sizeof(*sa));
+
+ if (ebuf_len > 0) {
+ *ebuf = 0;
+ }
+
+ if (host == NULL) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "NULL host");
+ return 0;
+ }
+
+ if ((port <= 0) || !is_valid_port((unsigned)port)) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "invalid port");
+ return 0;
+ }
+
+#if !defined(NO_SSL)
+#if !defined(NO_SSL_DL)
+#if defined(OPENSSL_API_1_1)
+ if (use_ssl && (TLS_client_method == NULL)) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "SSL is not initialized");
+ return 0;
+ }
+#else
+ if (use_ssl && (SSLv23_client_method == NULL)) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "SSL is not initialized");
+ return 0;
+ }
+
+#endif /* OPENSSL_API_1_1 */
+#else
+ (void)use_ssl;
+#endif /* NO_SSL_DL */
+#else
+ (void)use_ssl;
+#endif /* !defined(NO_SSL) */
+
+ if (mg_inet_pton(AF_INET, host, &sa->sin, sizeof(sa->sin))) {
+ sa->sin.sin_family = AF_INET;
+ sa->sin.sin_port = htons((uint16_t)port);
+ ip_ver = 4;
+#if defined(USE_IPV6)
+ } else if (mg_inet_pton(AF_INET6, host, &sa->sin6, sizeof(sa->sin6))) {
+ sa->sin6.sin6_family = AF_INET6;
+ sa->sin6.sin6_port = htons((uint16_t)port);
+ ip_ver = 6;
+ } else if (host[0] == '[') {
+ /* While getaddrinfo on Windows will work with [::1],
+ * getaddrinfo on Linux only works with ::1 (without []). */
+ size_t l = strlen(host + 1);
+ char *h = (l > 1) ? mg_strdup_ctx(host + 1, ctx) : NULL;
+ if (h) {
+ h[l - 1] = 0;
+ if (mg_inet_pton(AF_INET6, h, &sa->sin6, sizeof(sa->sin6))) {
+ sa->sin6.sin6_family = AF_INET6;
+ sa->sin6.sin6_port = htons((uint16_t)port);
+ ip_ver = 6;
+ }
+ mg_free(h);
+ }
+#endif
+ }
+
+ if (ip_ver == 0) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "host not found");
+ return 0;
+ }
+
+ if (ip_ver == 4) {
+ *sock = socket(PF_INET, SOCK_STREAM, 0);
+ }
+#if defined(USE_IPV6)
+ else if (ip_ver == 6) {
+ *sock = socket(PF_INET6, SOCK_STREAM, 0);
+ }
+#endif
+
+ if (*sock == INVALID_SOCKET) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "socket(): %s",
+ strerror(ERRNO));
+ return 0;
+ }
+
+ if (0 != set_non_blocking_mode(*sock)) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "Cannot set socket to non-blocking: %s",
+ strerror(ERRNO));
+ closesocket(*sock);
+ *sock = INVALID_SOCKET;
+ return 0;
+ }
+
+ set_close_on_exec(*sock, NULL, ctx);
+
+ if (ip_ver == 4) {
+ /* connected with IPv4 */
+ conn_ret = connect(*sock,
+ (struct sockaddr *)((void *)&sa->sin),
+ sizeof(sa->sin));
+ }
+#if defined(USE_IPV6)
+ else if (ip_ver == 6) {
+ /* connected with IPv6 */
+ conn_ret = connect(*sock,
+ (struct sockaddr *)((void *)&sa->sin6),
+ sizeof(sa->sin6));
+ }
+#endif
+
+ if (conn_ret != 0) {
+ sockerr = ERRNO;
+ }
+
+#if defined(_WIN32)
+ if ((conn_ret != 0) && (sockerr == WSAEWOULDBLOCK)) {
+#else
+ if ((conn_ret != 0) && (sockerr == EINPROGRESS)) {
+#endif
+ /* Data for getsockopt */
+ void *psockerr = &sockerr;
+ int ret;
+
+#if defined(_WIN32)
+ int len = (int)sizeof(sockerr);
+#else
+ socklen_t len = (socklen_t)sizeof(sockerr);
+#endif
+
+ /* Data for poll */
+ struct mg_pollfd pfd[1];
+ int pollres;
+ int ms_wait = 10000; /* 10 second timeout */
+ int nonstop = 0;
+
+ /* For a non-blocking socket, the connect sequence is:
+ * 1) call connect (will not block)
+ * 2) wait until the socket is ready for writing (select or poll)
+ * 3) check connection state with getsockopt
+ */
+ pfd[0].fd = *sock;
+ pfd[0].events = POLLOUT;
+ pollres = mg_poll(pfd, 1, ms_wait, ctx ? &(ctx->stop_flag) : &nonstop);
+
+ if (pollres != 1) {
+ /* Not connected */
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "connect(%s:%d): timeout",
+ host,
+ port);
+ closesocket(*sock);
+ *sock = INVALID_SOCKET;
+ return 0;
+ }
+
+#if defined(_WIN32)
+ ret = getsockopt(*sock, SOL_SOCKET, SO_ERROR, (char *)psockerr, &len);
+#else
+ ret = getsockopt(*sock, SOL_SOCKET, SO_ERROR, psockerr, &len);
+#endif
+
+ if ((ret == 0) && (sockerr == 0)) {
+ conn_ret = 0;
+ }
+ }
+
+ if (conn_ret != 0) {
+ /* Not connected */
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "connect(%s:%d): error %s",
+ host,
+ port,
+ strerror(sockerr));
+ closesocket(*sock);
+ *sock = INVALID_SOCKET;
+ return 0;
+ }
+
+ return 1;
+}
+
+
+int
+mg_url_encode(const char *src, char *dst, size_t dst_len)
+{
+ static const char *dont_escape = "._-$,;~()";
+ static const char *hex = "0123456789abcdef";
+ char *pos = dst;
+ const char *end = dst + dst_len - 1;
+
+ for (; ((*src != '\0') && (pos < end)); src++, pos++) {
+ if (isalnum((unsigned char)*src)
+ || (strchr(dont_escape, *src) != NULL)) {
+ *pos = *src;
+ } else if (pos + 2 < end) {
+ pos[0] = '%';
+ pos[1] = hex[(unsigned char)*src >> 4];
+ pos[2] = hex[(unsigned char)*src & 0xf];
+ pos += 2;
+ } else {
+ break;
+ }
+ }
+
+ *pos = '\0';
+ return (*src == '\0') ? (int)(pos - dst) : -1;
+}
+
+/* Return 0 on success, non-zero if an error occurs. */
+
+static int
+print_dir_entry(struct de *de)
+{
+ size_t namesize, escsize, i;
+ char *href, *esc, *p;
+ char size[64], mod[64];
+#if defined(REENTRANT_TIME)
+ struct tm _tm;
+ struct tm *tm = &_tm;
+#else
+ struct tm *tm;
+#endif
+
+ /* Estimate worst case size for encoding and escaping */
+ namesize = strlen(de->file_name) + 1;
+ escsize = de->file_name[strcspn(de->file_name, "&<>")] ? namesize * 5 : 0;
+ href = (char *)mg_malloc(namesize * 3 + escsize);
+ if (href == NULL) {
+ return -1;
+ }
+ mg_url_encode(de->file_name, href, namesize * 3);
+ esc = NULL;
+ if (escsize > 0) {
+ /* HTML escaping needed */
+ esc = href + namesize * 3;
+ for (i = 0, p = esc; de->file_name[i]; i++, p += strlen(p)) {
+ mg_strlcpy(p, de->file_name + i, 2);
+ if (*p == '&') {
+ strcpy(p, "&");
+ } else if (*p == '<') {
+ strcpy(p, "<");
+ } else if (*p == '>') {
+ strcpy(p, ">");
+ }
+ }
+ }
+
+ if (de->file.is_directory) {
+ mg_snprintf(de->conn,
+ NULL, /* Buffer is big enough */
+ size,
+ sizeof(size),
+ "%s",
+ "[DIRECTORY]");
+ } else {
+ /* We use (signed) cast below because MSVC 6 compiler cannot
+ * convert unsigned __int64 to double. Sigh. */
+ if (de->file.size < 1024) {
+ mg_snprintf(de->conn,
+ NULL, /* Buffer is big enough */
+ size,
+ sizeof(size),
+ "%d",
+ (int)de->file.size);
+ } else if (de->file.size < 0x100000) {
+ mg_snprintf(de->conn,
+ NULL, /* Buffer is big enough */
+ size,
+ sizeof(size),
+ "%.1fk",
+ (double)de->file.size / 1024.0);
+ } else if (de->file.size < 0x40000000) {
+ mg_snprintf(de->conn,
+ NULL, /* Buffer is big enough */
+ size,
+ sizeof(size),
+ "%.1fM",
+ (double)de->file.size / 1048576);
+ } else {
+ mg_snprintf(de->conn,
+ NULL, /* Buffer is big enough */
+ size,
+ sizeof(size),
+ "%.1fG",
+ (double)de->file.size / 1073741824);
+ }
+ }
+
+ /* Note: mg_snprintf will not cause a buffer overflow above.
+ * So, string truncation checks are not required here. */
+
+#if defined(REENTRANT_TIME)
+ localtime_r(&de->file.last_modified, tm);
+#else
+ tm = localtime(&de->file.last_modified);
+#endif
+ if (tm != NULL) {
+ strftime(mod, sizeof(mod), "%d-%b-%Y %H:%M", tm);
+ } else {
+ mg_strlcpy(mod, "01-Jan-1970 00:00", sizeof(mod));
+ mod[sizeof(mod) - 1] = '\0';
+ }
+ mg_printf(de->conn,
+ "<tr><td><a href=\"%s%s\">%s%s</a></td>"
+ "<td> %s</td><td> %s</td></tr>\n",
+ href,
+ de->file.is_directory ? "/" : "",
+ esc ? esc : de->file_name,
+ de->file.is_directory ? "/" : "",
+ mod,
+ size);
+ mg_free(href);
+ return 0;
+}
+
+
+/* This function is called from send_directory() and used for
+ * sorting directory entries by size, or name, or modification time.
+ * On windows, __cdecl specification is needed in case if project is built
+ * with __stdcall convention. qsort always requires __cdels callback. */
+static int WINCDECL
+compare_dir_entries(const void *p1, const void *p2)
+{
+ if (p1 && p2) {
+ const struct de *a = (const struct de *)p1, *b = (const struct de *)p2;
+ const char *query_string = a->conn->request_info.query_string;
+ int cmp_result = 0;
+
+ if ((query_string == NULL) || (query_string[0] == '\0')) {
+ query_string = "n";
+ }
+
+ if (a->file.is_directory && !b->file.is_directory) {
+ return -1; /* Always put directories on top */
+ } else if (!a->file.is_directory && b->file.is_directory) {
+ return 1; /* Always put directories on top */
+ } else if (*query_string == 'n') {
+ cmp_result = strcmp(a->file_name, b->file_name);
+ } else if (*query_string == 's') {
+ cmp_result = (a->file.size == b->file.size)
+ ? 0
+ : ((a->file.size > b->file.size) ? 1 : -1);
+ } else if (*query_string == 'd') {
+ cmp_result =
+ (a->file.last_modified == b->file.last_modified)
+ ? 0
+ : ((a->file.last_modified > b->file.last_modified) ? 1
+ : -1);
+ }
+
+ return (query_string[1] == 'd') ? -cmp_result : cmp_result;
+ }
+ return 0;
+}
+
+
+static int
+must_hide_file(struct mg_connection *conn, const char *path)
+{
+ if (conn && conn->dom_ctx) {
+ const char *pw_pattern = "**" PASSWORDS_FILE_NAME "$";
+ const char *pattern = conn->dom_ctx->config[HIDE_FILES];
+ return (match_prefix(pw_pattern, strlen(pw_pattern), path) > 0)
+ || ((pattern != NULL)
+ && (match_prefix(pattern, strlen(pattern), path) > 0));
+ }
+ return 0;
+}
+
+
+static int
+scan_directory(struct mg_connection *conn,
+ const char *dir,
+ void *data,
+ int (*cb)(struct de *, void *))
+{
+ char path[PATH_MAX];
+ struct dirent *dp;
+ DIR *dirp;
+ struct de de;
+ int truncated;
+
+ if ((dirp = mg_opendir(conn, dir)) == NULL) {
+ return 0;
+ } else {
+ de.conn = conn;
+
+ while ((dp = mg_readdir(dirp)) != NULL) {
+ /* Do not show current dir and hidden files */
+ if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")
+ || must_hide_file(conn, dp->d_name)) {
+ continue;
+ }
+
+ mg_snprintf(
+ conn, &truncated, path, sizeof(path), "%s/%s", dir, dp->d_name);
+
+ /* If we don't memset stat structure to zero, mtime will have
+ * garbage and strftime() will segfault later on in
+ * print_dir_entry(). memset is required only if mg_stat()
+ * fails. For more details, see
+ * http://code.google.com/p/mongoose/issues/detail?id=79 */
+ memset(&de.file, 0, sizeof(de.file));
+
+ if (truncated) {
+ /* If the path is not complete, skip processing. */
+ continue;
+ }
+
+ if (!mg_stat(conn, path, &de.file)) {
+ mg_cry_internal(conn,
+ "%s: mg_stat(%s) failed: %s",
+ __func__,
+ path,
+ strerror(ERRNO));
+ }
+ de.file_name = dp->d_name;
+ cb(&de, data);
+ }
+ (void)mg_closedir(dirp);
+ }
+ return 1;
+}
+
+
+#if !defined(NO_FILES)
+static int
+remove_directory(struct mg_connection *conn, const char *dir)
+{
+ char path[PATH_MAX];
+ struct dirent *dp;
+ DIR *dirp;
+ struct de de;
+ int truncated;
+ int ok = 1;
+
+ if ((dirp = mg_opendir(conn, dir)) == NULL) {
+ return 0;
+ } else {
+ de.conn = conn;
+
+ while ((dp = mg_readdir(dirp)) != NULL) {
+ /* Do not show current dir (but show hidden files as they will
+ * also be removed) */
+ if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) {
+ continue;
+ }
+
+ mg_snprintf(
+ conn, &truncated, path, sizeof(path), "%s/%s", dir, dp->d_name);
+
+ /* If we don't memset stat structure to zero, mtime will have
+ * garbage and strftime() will segfault later on in
+ * print_dir_entry(). memset is required only if mg_stat()
+ * fails. For more details, see
+ * http://code.google.com/p/mongoose/issues/detail?id=79 */
+ memset(&de.file, 0, sizeof(de.file));
+
+ if (truncated) {
+ /* Do not delete anything shorter */
+ ok = 0;
+ continue;
+ }
+
+ if (!mg_stat(conn, path, &de.file)) {
+ mg_cry_internal(conn,
+ "%s: mg_stat(%s) failed: %s",
+ __func__,
+ path,
+ strerror(ERRNO));
+ ok = 0;
+ }
+
+ if (de.file.is_directory) {
+ if (remove_directory(conn, path) == 0) {
+ ok = 0;
+ }
+ } else {
+ /* This will fail file is the file is in memory */
+ if (mg_remove(conn, path) == 0) {
+ ok = 0;
+ }
+ }
+ }
+ (void)mg_closedir(dirp);
+
+ IGNORE_UNUSED_RESULT(rmdir(dir));
+ }
+
+ return ok;
+}
+#endif
+
+
+struct dir_scan_data {
+ struct de *entries;
+ unsigned int num_entries;
+ unsigned int arr_size;
+};
+
+
+/* Behaves like realloc(), but frees original pointer on failure */
+static void *
+realloc2(void *ptr, size_t size)
+{
+ void *new_ptr = mg_realloc(ptr, size);
+ if (new_ptr == NULL) {
+ mg_free(ptr);
+ }
+ return new_ptr;
+}
+
+
+static int
+dir_scan_callback(struct de *de, void *data)
+{
+ struct dir_scan_data *dsd = (struct dir_scan_data *)data;
+
+ if ((dsd->entries == NULL) || (dsd->num_entries >= dsd->arr_size)) {
+ dsd->arr_size *= 2;
+ dsd->entries =
+ (struct de *)realloc2(dsd->entries,
+ dsd->arr_size * sizeof(dsd->entries[0]));
+ }
+ if (dsd->entries == NULL) {
+ /* TODO(lsm, low): propagate an error to the caller */
+ dsd->num_entries = 0;
+ } else {
+ dsd->entries[dsd->num_entries].file_name = mg_strdup(de->file_name);
+ dsd->entries[dsd->num_entries].file = de->file;
+ dsd->entries[dsd->num_entries].conn = de->conn;
+ dsd->num_entries++;
+ }
+
+ return 0;
+}
+
+
+static void
+handle_directory_request(struct mg_connection *conn, const char *dir)
+{
+ unsigned int i;
+ int sort_direction;
+ struct dir_scan_data data = {NULL, 0, 128};
+ char date[64], *esc, *p;
+ const char *title;
+ time_t curtime = time(NULL);
+
+ if (!scan_directory(conn, dir, &data, dir_scan_callback)) {
+ mg_send_http_error(conn,
+ 500,
+ "Error: Cannot open directory\nopendir(%s): %s",
+ dir,
+ strerror(ERRNO));
+ return;
+ }
+
+ gmt_time_string(date, sizeof(date), &curtime);
+
+ if (!conn) {
+ return;
+ }
+
+ esc = NULL;
+ title = conn->request_info.local_uri;
+ if (title[strcspn(title, "&<>")]) {
+ /* HTML escaping needed */
+ esc = (char *)mg_malloc(strlen(title) * 5 + 1);
+ if (esc) {
+ for (i = 0, p = esc; title[i]; i++, p += strlen(p)) {
+ mg_strlcpy(p, title + i, 2);
+ if (*p == '&') {
+ strcpy(p, "&");
+ } else if (*p == '<') {
+ strcpy(p, "<");
+ } else if (*p == '>') {
+ strcpy(p, ">");
+ }
+ }
+ } else {
+ title = "";
+ }
+ }
+
+ sort_direction = ((conn->request_info.query_string != NULL)
+ && (conn->request_info.query_string[0] != '\0')
+ && (conn->request_info.query_string[1] == 'd'))
+ ? 'a'
+ : 'd';
+
+ conn->must_close = 1;
+ mg_printf(conn, "HTTP/1.1 200 OK\r\n");
+ send_static_cache_header(conn);
+ send_additional_header(conn);
+ mg_printf(conn,
+ "Date: %s\r\n"
+ "Connection: close\r\n"
+ "Content-Type: text/html; charset=utf-8\r\n\r\n",
+ date);
+ mg_printf(conn,
+ "<html><head><title>Index of %s</title>"
+ "<style>th {text-align: left;}</style></head>"
+ "<body><h1>Index of %s</h1><pre><table cellpadding=\"0\">"
+ "<tr><th><a href=\"?n%c\">Name</a></th>"
+ "<th><a href=\"?d%c\">Modified</a></th>"
+ "<th><a href=\"?s%c\">Size</a></th></tr>"
+ "<tr><td colspan=\"3\"><hr></td></tr>",
+ esc ? esc : title,
+ esc ? esc : title,
+ sort_direction,
+ sort_direction,
+ sort_direction);
+ mg_free(esc);
+
+ /* Print first entry - link to a parent directory */
+ mg_printf(conn,
+ "<tr><td><a href=\"%s\">%s</a></td>"
+ "<td> %s</td><td> %s</td></tr>\n",
+ "..",
+ "Parent directory",
+ "-",
+ "-");
+
+ /* Sort and print directory entries */
+ if (data.entries != NULL) {
+ qsort(data.entries,
+ (size_t)data.num_entries,
+ sizeof(data.entries[0]),
+ compare_dir_entries);
+ for (i = 0; i < data.num_entries; i++) {
+ print_dir_entry(&data.entries[i]);
+ mg_free(data.entries[i].file_name);
+ }
+ mg_free(data.entries);
+ }
+
+ mg_printf(conn, "%s", "</table></pre></body></html>");
+ conn->status_code = 200;
+}
+
+
+/* Send len bytes from the opened file to the client. */
+static void
+send_file_data(struct mg_connection *conn,
+ struct mg_file *filep,
+ int64_t offset,
+ int64_t len)
+{
+ char buf[MG_BUF_LEN];
+ int to_read, num_read, num_written;
+ int64_t size;
+
+ if (!filep || !conn) {
+ return;
+ }
+
+ /* Sanity check the offset */
+ size = (filep->stat.size > INT64_MAX) ? INT64_MAX
+ : (int64_t)(filep->stat.size);
+ offset = (offset < 0) ? 0 : ((offset > size) ? size : offset);
+
+#if defined(MG_USE_OPEN_FILE)
+ if ((len > 0) && (filep->access.membuf != NULL) && (size > 0)) {
+ /* file stored in memory */
+ if (len > size - offset) {
+ len = size - offset;
+ }
+ mg_write(conn, filep->access.membuf + offset, (size_t)len);
+ } else /* else block below */
+#endif
+ if (len > 0 && filep->access.fp != NULL) {
+/* file stored on disk */
+#if defined(__linux__)
+ /* sendfile is only available for Linux */
+ if ((conn->ssl == 0) && (conn->throttle == 0)
+ && (!mg_strcasecmp(conn->dom_ctx->config[ALLOW_SENDFILE_CALL],
+ "yes"))) {
+ off_t sf_offs = (off_t)offset;
+ ssize_t sf_sent;
+ int sf_file = fileno(filep->access.fp);
+ int loop_cnt = 0;
+
+ do {
+ /* 2147479552 (0x7FFFF000) is a limit found by experiment on
+ * 64 bit Linux (2^31 minus one memory page of 4k?). */
+ size_t sf_tosend =
+ (size_t)((len < 0x7FFFF000) ? len : 0x7FFFF000);
+ sf_sent =
+ sendfile(conn->client.sock, sf_file, &sf_offs, sf_tosend);
+ if (sf_sent > 0) {
+ len -= sf_sent;
+ offset += sf_sent;
+ } else if (loop_cnt == 0) {
+ /* This file can not be sent using sendfile.
+ * This might be the case for pseudo-files in the
+ * /sys/ and /proc/ file system.
+ * Use the regular user mode copy code instead. */
+ break;
+ } else if (sf_sent == 0) {
+ /* No error, but 0 bytes sent. May be EOF? */
+ return;
+ }
+ loop_cnt++;
+
+ } while ((len > 0) && (sf_sent >= 0));
+
+ if (sf_sent > 0) {
+ return; /* OK */
+ }
+
+ /* sf_sent<0 means error, thus fall back to the classic way */
+ /* This is always the case, if sf_file is not a "normal" file,
+ * e.g., for sending data from the output of a CGI process. */
+ offset = (int64_t)sf_offs;
+ }
+#endif
+ if ((offset > 0) && (fseeko(filep->access.fp, offset, SEEK_SET) != 0)) {
+ mg_cry_internal(conn,
+ "%s: fseeko() failed: %s",
+ __func__,
+ strerror(ERRNO));
+ mg_send_http_error(
+ conn,
+ 500,
+ "%s",
+ "Error: Unable to access file at requested position.");
+ } else {
+ while (len > 0) {
+ /* Calculate how much to read from the file in the buffer */
+ to_read = sizeof(buf);
+ if ((int64_t)to_read > len) {
+ to_read = (int)len;
+ }
+
+ /* Read from file, exit the loop on error */
+ if ((num_read =
+ (int)fread(buf, 1, (size_t)to_read, filep->access.fp))
+ <= 0) {
+ break;
+ }
+
+ /* Send read bytes to the client, exit the loop on error */
+ if ((num_written = mg_write(conn, buf, (size_t)num_read))
+ != num_read) {
+ break;
+ }
+
+ /* Both read and were successful, adjust counters */
+ len -= num_written;
+ }
+ }
+ }
+}
+
+
+static int
+parse_range_header(const char *header, int64_t *a, int64_t *b)
+{
+ return sscanf(header, "bytes=%" INT64_FMT "-%" INT64_FMT, a, b);
+}
+
+
+static void
+construct_etag(char *buf, size_t buf_len, const struct mg_file_stat *filestat)
+{
+ if ((filestat != NULL) && (buf != NULL)) {
+ mg_snprintf(NULL,
+ NULL, /* All calls to construct_etag use 64 byte buffer */
+ buf,
+ buf_len,
+ "\"%lx.%" INT64_FMT "\"",
+ (unsigned long)filestat->last_modified,
+ filestat->size);
+ }
+}
+
+
+static void
+fclose_on_exec(struct mg_file_access *filep, struct mg_connection *conn)
+{
+ if (filep != NULL && filep->fp != NULL) {
+#if defined(_WIN32)
+ (void)conn; /* Unused. */
+#else
+ if (fcntl(fileno(filep->fp), F_SETFD, FD_CLOEXEC) != 0) {
+ mg_cry_internal(conn,
+ "%s: fcntl(F_SETFD FD_CLOEXEC) failed: %s",
+ __func__,
+ strerror(ERRNO));
+ }
+#endif
+ }
+}
+
+
+#if defined(USE_ZLIB)
+#include "mod_zlib.inl"
+#endif
+
+
+static void
+handle_static_file_request(struct mg_connection *conn,
+ const char *path,
+ struct mg_file *filep,
+ const char *mime_type,
+ const char *additional_headers)
+{
+ char date[64], lm[64], etag[64];
+ char range[128]; /* large enough, so there will be no overflow */
+ const char *msg = "OK";
+ const char *range_hdr;
+ time_t curtime = time(NULL);
+ int64_t cl, r1, r2;
+ struct vec mime_vec;
+ int n, truncated;
+ char gz_path[PATH_MAX];
+ const char *encoding = "";
+ const char *origin_hdr;
+ const char *cors_orig_cfg;
+ const char *cors1, *cors2, *cors3;
+ int is_head_request;
+
+#if defined(USE_ZLIB)
+ /* Compression is allowed, unless there is a reason not to use compression.
+ * If the file is already compressed, too small or a "range" request was
+ * made, on the fly compression is not possible. */
+ int allow_on_the_fly_compression = 1;
+#endif
+
+ if ((conn == NULL) || (conn->dom_ctx == NULL) || (filep == NULL)) {
+ return;
+ }
+
+ is_head_request = !strcmp(conn->request_info.request_method, "HEAD");
+
+ if (mime_type == NULL) {
+ get_mime_type(conn, path, &mime_vec);
+ } else {
+ mime_vec.ptr = mime_type;
+ mime_vec.len = strlen(mime_type);
+ }
+ if (filep->stat.size > INT64_MAX) {
+ mg_send_http_error(conn,
+ 500,
+ "Error: File size is too large to send\n%" INT64_FMT,
+ filep->stat.size);
+ return;
+ }
+ cl = (int64_t)filep->stat.size;
+ conn->status_code = 200;
+ range[0] = '\0';
+
+#if defined(USE_ZLIB)
+ /* if this file is in fact a pre-gzipped file, rewrite its filename
+ * it's important to rewrite the filename after resolving
+ * the mime type from it, to preserve the actual file's type */
+ if (!conn->accept_gzip) {
+ allow_on_the_fly_compression = 0;
+ }
+#endif
+
+ /* Check if there is a range header */
+ range_hdr = mg_get_header(conn, "Range");
+
+ /* For gzipped files, add *.gz */
+ if (filep->stat.is_gzipped) {
+ mg_snprintf(conn, &truncated, gz_path, sizeof(gz_path), "%s.gz", path);
+
+ if (truncated) {
+ mg_send_http_error(conn,
+ 500,
+ "Error: Path of zipped file too long (%s)",
+ path);
+ return;
+ }
+
+ path = gz_path;
+ encoding = "Content-Encoding: gzip\r\n";
+
+#if defined(USE_ZLIB)
+ /* File is already compressed. No "on the fly" compression. */
+ allow_on_the_fly_compression = 0;
+#endif
+ } else if ((conn->accept_gzip) && (range_hdr == NULL)
+ && (filep->stat.size >= MG_FILE_COMPRESSION_SIZE_LIMIT)) {
+ struct mg_file_stat file_stat;
+
+ mg_snprintf(conn, &truncated, gz_path, sizeof(gz_path), "%s.gz", path);
+
+ if (!truncated && mg_stat(conn, gz_path, &file_stat)
+ && !file_stat.is_directory) {
+ file_stat.is_gzipped = 1;
+ filep->stat = file_stat;
+ cl = (int64_t)filep->stat.size;
+ path = gz_path;
+ encoding = "Content-Encoding: gzip\r\n";
+
+#if defined(USE_ZLIB)
+ /* File is already compressed. No "on the fly" compression. */
+ allow_on_the_fly_compression = 0;
+#endif
+ }
+ }
+
+ if (!mg_fopen(conn, path, MG_FOPEN_MODE_READ, filep)) {
+ mg_send_http_error(conn,
+ 500,
+ "Error: Cannot open file\nfopen(%s): %s",
+ path,
+ strerror(ERRNO));
+ return;
+ }
+
+ fclose_on_exec(&filep->access, conn);
+
+ /* If "Range" request was made: parse header, send only selected part
+ * of the file. */
+ r1 = r2 = 0;
+ if ((range_hdr != NULL)
+ && ((n = parse_range_header(range_hdr, &r1, &r2)) > 0) && (r1 >= 0)
+ && (r2 >= 0)) {
+ /* actually, range requests don't play well with a pre-gzipped
+ * file (since the range is specified in the uncompressed space) */
+ if (filep->stat.is_gzipped) {
+ mg_send_http_error(
+ conn,
+ 416, /* 416 = Range Not Satisfiable */
+ "%s",
+ "Error: Range requests in gzipped files are not supported");
+ (void)mg_fclose(
+ &filep->access); /* ignore error on read only file */
+ return;
+ }
+ conn->status_code = 206;
+ cl = (n == 2) ? (((r2 > cl) ? cl : r2) - r1 + 1) : (cl - r1);
+ mg_snprintf(conn,
+ NULL, /* range buffer is big enough */
+ range,
+ sizeof(range),
+ "Content-Range: bytes "
+ "%" INT64_FMT "-%" INT64_FMT "/%" INT64_FMT "\r\n",
+ r1,
+ r1 + cl - 1,
+ filep->stat.size);
+ msg = "Partial Content";
+
+#if defined(USE_ZLIB)
+ /* Do not compress ranges. */
+ allow_on_the_fly_compression = 0;
+#endif
+ }
+
+/* Do not compress small files. Small files do not benefit from file
+ * compression, but there is still some overhead. */
+#if defined(USE_ZLIB)
+ if (filep->stat.size < MG_FILE_COMPRESSION_SIZE_LIMIT) {
+ /* File is below the size limit. */
+ allow_on_the_fly_compression = 0;
+ }
+#endif
+
+ /* Standard CORS header */
+ cors_orig_cfg = conn->dom_ctx->config[ACCESS_CONTROL_ALLOW_ORIGIN];
+ origin_hdr = mg_get_header(conn, "Origin");
+ if (cors_orig_cfg && *cors_orig_cfg && origin_hdr) {
+ /* Cross-origin resource sharing (CORS), see
+ * http://www.html5rocks.com/en/tutorials/cors/,
+ * http://www.html5rocks.com/static/images/cors_server_flowchart.png
+ * -
+ * preflight is not supported for files. */
+ cors1 = "Access-Control-Allow-Origin: ";
+ cors2 = cors_orig_cfg;
+ cors3 = "\r\n";
+ } else {
+ cors1 = cors2 = cors3 = "";
+ }
+
+ /* Prepare Etag, Date, Last-Modified headers. Must be in UTC,
+ * according to
+ * http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.3 */
+ gmt_time_string(date, sizeof(date), &curtime);
+ gmt_time_string(lm, sizeof(lm), &filep->stat.last_modified);
+ construct_etag(etag, sizeof(etag), &filep->stat);
+
+ /* Send header */
+ (void)mg_printf(conn,
+ "HTTP/1.1 %d %s\r\n"
+ "%s%s%s" /* CORS */
+ "Date: %s\r\n"
+ "Last-Modified: %s\r\n"
+ "Etag: %s\r\n"
+ "Content-Type: %.*s\r\n"
+ "Connection: %s\r\n",
+ conn->status_code,
+ msg,
+ cors1,
+ cors2,
+ cors3,
+ date,
+ lm,
+ etag,
+ (int)mime_vec.len,
+ mime_vec.ptr,
+ suggest_connection_header(conn));
+ send_static_cache_header(conn);
+ send_additional_header(conn);
+
+#if defined(USE_ZLIB)
+ /* On the fly compression allowed */
+ if (allow_on_the_fly_compression) {
+ /* For on the fly compression, we don't know the content size in
+ * advance, so we have to use chunked encoding */
+ (void)mg_printf(conn,
+ "Content-Encoding: gzip\r\n"
+ "Transfer-Encoding: chunked\r\n");
+ } else
+#endif
+ {
+ /* Without on-the-fly compression, we know the content-length
+ * and we can use ranges (with on-the-fly compression we cannot).
+ * So we send these response headers only in this case. */
+ (void)mg_printf(conn,
+ "Content-Length: %" INT64_FMT "\r\n"
+ "Accept-Ranges: bytes\r\n"
+ "%s" /* range */
+ "%s" /* encoding */,
+ cl,
+ range,
+ encoding);
+ }
+
+ /* The previous code must not add any header starting with X- to make
+ * sure no one of the additional_headers is included twice */
+ if (additional_headers != NULL) {
+ (void)mg_printf(conn,
+ "%.*s\r\n\r\n",
+ (int)strlen(additional_headers),
+ additional_headers);
+ } else {
+ (void)mg_printf(conn, "\r\n");
+ }
+
+ if (!is_head_request) {
+#if defined(USE_ZLIB)
+ if (allow_on_the_fly_compression) {
+ /* Compress and send */
+ send_compressed_data(conn, filep);
+ } else
+#endif
+ {
+ /* Send file directly */
+ send_file_data(conn, filep, r1, cl);
+ }
+ }
+ (void)mg_fclose(&filep->access); /* ignore error on read only file */
+}
+
+
+int
+mg_send_file_body(struct mg_connection *conn, const char *path)
+{
+ struct mg_file file = STRUCT_FILE_INITIALIZER;
+ if (!mg_fopen(conn, path, MG_FOPEN_MODE_READ, &file)) {
+ return -1;
+ }
+ fclose_on_exec(&file.access, conn);
+ send_file_data(conn, &file, 0, INT64_MAX);
+ (void)mg_fclose(&file.access); /* Ignore errors for readonly files */
+ return 0; /* >= 0 for OK */
+}
+
+
+#if !defined(NO_CACHING)
+/* Return True if we should reply 304 Not Modified. */
+static int
+is_not_modified(const struct mg_connection *conn,
+ const struct mg_file_stat *filestat)
+{
+ char etag[64];
+ const char *ims = mg_get_header(conn, "If-Modified-Since");
+ const char *inm = mg_get_header(conn, "If-None-Match");
+ construct_etag(etag, sizeof(etag), filestat);
+
+ return ((inm != NULL) && !mg_strcasecmp(etag, inm))
+ || ((ims != NULL)
+ && (filestat->last_modified <= parse_date_string(ims)));
+}
+
+static void
+handle_not_modified_static_file_request(struct mg_connection *conn,
+ struct mg_file *filep)
+{
+ char date[64], lm[64], etag[64];
+ time_t curtime = time(NULL);
+
+ if ((conn == NULL) || (filep == NULL)) {
+ return;
+ }
+ conn->status_code = 304;
+ gmt_time_string(date, sizeof(date), &curtime);
+ gmt_time_string(lm, sizeof(lm), &filep->stat.last_modified);
+ construct_etag(etag, sizeof(etag), &filep->stat);
+
+ (void)mg_printf(conn,
+ "HTTP/1.1 %d %s\r\n"
+ "Date: %s\r\n",
+ conn->status_code,
+ mg_get_response_code_text(conn, conn->status_code),
+ date);
+ send_static_cache_header(conn);
+ send_additional_header(conn);
+ (void)mg_printf(conn,
+ "Last-Modified: %s\r\n"
+ "Etag: %s\r\n"
+ "Connection: %s\r\n"
+ "\r\n",
+ lm,
+ etag,
+ suggest_connection_header(conn));
+}
+#endif
+
+
+void
+mg_send_file(struct mg_connection *conn, const char *path)
+{
+ mg_send_mime_file2(conn, path, NULL, NULL);
+}
+
+
+void
+mg_send_mime_file(struct mg_connection *conn,
+ const char *path,
+ const char *mime_type)
+{
+ mg_send_mime_file2(conn, path, mime_type, NULL);
+}
+
+
+void
+mg_send_mime_file2(struct mg_connection *conn,
+ const char *path,
+ const char *mime_type,
+ const char *additional_headers)
+{
+ struct mg_file file = STRUCT_FILE_INITIALIZER;
+
+ if (!conn) {
+ /* No conn */
+ return;
+ }
+
+ if (mg_stat(conn, path, &file.stat)) {
+#if !defined(NO_CACHING)
+ if (is_not_modified(conn, &file.stat)) {
+ /* Send 304 "Not Modified" - this must not send any body data */
+ handle_not_modified_static_file_request(conn, &file);
+ } else
+#endif /* NO_CACHING */
+ if (file.stat.is_directory) {
+ if (!mg_strcasecmp(conn->dom_ctx->config[ENABLE_DIRECTORY_LISTING],
+ "yes")) {
+ handle_directory_request(conn, path);
+ } else {
+ mg_send_http_error(conn,
+ 403,
+ "%s",
+ "Error: Directory listing denied");
+ }
+ } else {
+ handle_static_file_request(
+ conn, path, &file, mime_type, additional_headers);
+ }
+ } else {
+ mg_send_http_error(conn, 404, "%s", "Error: File not found");
+ }
+}
+
+
+/* For a given PUT path, create all intermediate subdirectories.
+ * Return 0 if the path itself is a directory.
+ * Return 1 if the path leads to a file.
+ * Return -1 for if the path is too long.
+ * Return -2 if path can not be created.
+ */
+static int
+put_dir(struct mg_connection *conn, const char *path)
+{
+ char buf[PATH_MAX];
+ const char *s, *p;
+ struct mg_file file = STRUCT_FILE_INITIALIZER;
+ size_t len;
+ int res = 1;
+
+ for (s = p = path + 2; (p = strchr(s, '/')) != NULL; s = ++p) {
+ len = (size_t)(p - path);
+ if (len >= sizeof(buf)) {
+ /* path too long */
+ res = -1;
+ break;
+ }
+ memcpy(buf, path, len);
+ buf[len] = '\0';
+
+ /* Try to create intermediate directory */
+ DEBUG_TRACE("mkdir(%s)", buf);
+ if (!mg_stat(conn, buf, &file.stat) && mg_mkdir(conn, buf, 0755) != 0) {
+ /* path does not exixt and can not be created */
+ res = -2;
+ break;
+ }
+
+ /* Is path itself a directory? */
+ if (p[1] == '\0') {
+ res = 0;
+ }
+ }
+
+ return res;
+}
+
+
+static void
+remove_bad_file(const struct mg_connection *conn, const char *path)
+{
+ int r = mg_remove(conn, path);
+ if (r != 0) {
+ mg_cry_internal(conn,
+ "%s: Cannot remove invalid file %s",
+ __func__,
+ path);
+ }
+}
+
+
+long long
+mg_store_body(struct mg_connection *conn, const char *path)
+{
+ char buf[MG_BUF_LEN];
+ long long len = 0;
+ int ret, n;
+ struct mg_file fi;
+
+ if (conn->consumed_content != 0) {
+ mg_cry_internal(conn, "%s: Contents already consumed", __func__);
+ return -11;
+ }
+
+ ret = put_dir(conn, path);
+ if (ret < 0) {
+ /* -1 for path too long,
+ * -2 for path can not be created. */
+ return ret;
+ }
+ if (ret != 1) {
+ /* Return 0 means, path itself is a directory. */
+ return 0;
+ }
+
+ if (mg_fopen(conn, path, MG_FOPEN_MODE_WRITE, &fi) == 0) {
+ return -12;
+ }
+
+ ret = mg_read(conn, buf, sizeof(buf));
+ while (ret > 0) {
+ n = (int)fwrite(buf, 1, (size_t)ret, fi.access.fp);
+ if (n != ret) {
+ (void)mg_fclose(
+ &fi.access); /* File is bad and will be removed anyway. */
+ remove_bad_file(conn, path);
+ return -13;
+ }
+ len += ret;
+ ret = mg_read(conn, buf, sizeof(buf));
+ }
+
+ /* File is open for writing. If fclose fails, there was probably an
+ * error flushing the buffer to disk, so the file on disk might be
+ * broken. Delete it and return an error to the caller. */
+ if (mg_fclose(&fi.access) != 0) {
+ remove_bad_file(conn, path);
+ return -14;
+ }
+
+ return len;
+}
+
+
+/* Parse a buffer:
+ * Forward the string pointer till the end of a word, then
+ * terminate it and forward till the begin of the next word.
+ */
+static int
+skip_to_end_of_word_and_terminate(char **ppw, int eol)
+{
+ /* Forward until a space is found - use isgraph here */
+ /* See http://www.cplusplus.com/reference/cctype/ */
+ while (isgraph((unsigned char)**ppw)) {
+ (*ppw)++;
+ }
+
+ /* Check end of word */
+ if (eol) {
+ /* must be a end of line */
+ if ((**ppw != '\r') && (**ppw != '\n')) {
+ return -1;
+ }
+ } else {
+ /* must be a end of a word, but not a line */
+ if (**ppw != ' ') {
+ return -1;
+ }
+ }
+
+ /* Terminate and forward to the next word */
+ do {
+ **ppw = 0;
+ (*ppw)++;
+ } while (isspace((unsigned char)**ppw));
+
+ /* Check after term */
+ if (!eol) {
+ /* if it's not the end of line, there must be a next word */
+ if (!isgraph((unsigned char)**ppw)) {
+ return -1;
+ }
+ }
+
+ /* ok */
+ return 1;
+}
+
+
+/* Parse HTTP headers from the given buffer, advance buf pointer
+ * to the point where parsing stopped.
+ * All parameters must be valid pointers (not NULL).
+ * Return <0 on error. */
+static int
+parse_http_headers(char **buf, struct mg_header hdr[MG_MAX_HEADERS])
+{
+ int i;
+ int num_headers = 0;
+
+ for (i = 0; i < (int)MG_MAX_HEADERS; i++) {
+ char *dp = *buf;
+ while ((*dp != ':') && (*dp >= 33) && (*dp <= 126)) {
+ dp++;
+ }
+ if (dp == *buf) {
+ /* End of headers reached. */
+ break;
+ }
+ if (*dp != ':') {
+ /* This is not a valid field. */
+ return -1;
+ }
+
+ /* End of header key (*dp == ':') */
+ /* Truncate here and set the key name */
+ *dp = 0;
+ hdr[i].name = *buf;
+ do {
+ dp++;
+ } while (*dp == ' ');
+
+ /* The rest of the line is the value */
+ hdr[i].value = dp;
+ *buf = dp + strcspn(dp, "\r\n");
+ if (((*buf)[0] != '\r') || ((*buf)[1] != '\n')) {
+ *buf = NULL;
+ }
+
+ num_headers = i + 1;
+ if (*buf) {
+ (*buf)[0] = 0;
+ (*buf)[1] = 0;
+ *buf += 2;
+ } else {
+ *buf = dp;
+ break;
+ }
+
+ if ((*buf)[0] == '\r') {
+ /* This is the end of the header */
+ break;
+ }
+ }
+ return num_headers;
+}
+
+
+struct mg_http_method_info {
+ const char *name;
+ int request_has_body;
+ int response_has_body;
+ int is_safe;
+ int is_idempotent;
+ int is_cacheable;
+};
+
+
+/* https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods */
+static struct mg_http_method_info http_methods[] = {
+ /* HTTP (RFC 2616) */
+ {"GET", 0, 1, 1, 1, 1},
+ {"POST", 1, 1, 0, 0, 0},
+ {"PUT", 1, 0, 0, 1, 0},
+ {"DELETE", 0, 0, 0, 1, 0},
+ {"HEAD", 0, 0, 1, 1, 1},
+ {"OPTIONS", 0, 0, 1, 1, 0},
+ {"CONNECT", 1, 1, 0, 0, 0},
+ /* TRACE method (RFC 2616) is not supported for security reasons */
+
+ /* PATCH method (RFC 5789) */
+ {"PATCH", 1, 0, 0, 0, 0},
+ /* PATCH method only allowed for CGI/Lua/LSP and callbacks. */
+
+ /* WEBDAV (RFC 2518) */
+ {"PROPFIND", 0, 1, 1, 1, 0},
+ /* http://www.webdav.org/specs/rfc4918.html, 9.1:
+ * Some PROPFIND results MAY be cached, with care,
+ * as there is no cache validation mechanism for
+ * most properties. This method is both safe and
+ * idempotent (see Section 9.1 of [RFC2616]). */
+ {"MKCOL", 0, 0, 0, 1, 0},
+ /* http://www.webdav.org/specs/rfc4918.html, 9.1:
+ * When MKCOL is invoked without a request body,
+ * the newly created collection SHOULD have no
+ * members. A MKCOL request message may contain
+ * a message body. The precise behavior of a MKCOL
+ * request when the body is present is undefined,
+ * ... ==> We do not support MKCOL with body data.
+ * This method is idempotent, but not safe (see
+ * Section 9.1 of [RFC2616]). Responses to this
+ * method MUST NOT be cached. */
+
+ /* Unsupported WEBDAV Methods: */
+ /* PROPPATCH, COPY, MOVE, LOCK, UNLOCK (RFC 2518) */
+ /* + 11 methods from RFC 3253 */
+ /* ORDERPATCH (RFC 3648) */
+ /* ACL (RFC 3744) */
+ /* SEARCH (RFC 5323) */
+ /* + MicroSoft extensions
+ * https://msdn.microsoft.com/en-us/library/aa142917.aspx */
+
+ /* REPORT method (RFC 3253) */
+ {"REPORT", 1, 1, 1, 1, 1},
+ /* REPORT method only allowed for CGI/Lua/LSP and callbacks. */
+ /* It was defined for WEBDAV in RFC 3253, Sec. 3.6
+ * (https://tools.ietf.org/html/rfc3253#section-3.6), but seems
+ * to be useful for REST in case a "GET request with body" is
+ * required. */
+
+ {NULL, 0, 0, 0, 0, 0}
+ /* end of list */
+};
+
+
+static const struct mg_http_method_info *
+get_http_method_info(const char *method)
+{
+ /* Check if the method is known to the server. The list of all known
+ * HTTP methods can be found here at
+ * http://www.iana.org/assignments/http-methods/http-methods.xhtml
+ */
+ const struct mg_http_method_info *m = http_methods;
+
+ while (m->name) {
+ if (!strcmp(m->name, method)) {
+ return m;
+ }
+ m++;
+ }
+ return NULL;
+}
+
+
+static int
+is_valid_http_method(const char *method)
+{
+ return (get_http_method_info(method) != NULL);
+}
+
+
+/* Parse HTTP request, fill in mg_request_info structure.
+ * This function modifies the buffer by NUL-terminating
+ * HTTP request components, header names and header values.
+ * Parameters:
+ * buf (in/out): pointer to the HTTP header to parse and split
+ * len (in): length of HTTP header buffer
+ * re (out): parsed header as mg_request_info
+ * buf and ri must be valid pointers (not NULL), len>0.
+ * Returns <0 on error. */
+static int
+parse_http_request(char *buf, int len, struct mg_request_info *ri)
+{
+ int request_length;
+ int init_skip = 0;
+
+ /* Reset attributes. DO NOT TOUCH is_ssl, remote_addr,
+ * remote_port */
+ ri->remote_user = ri->request_method = ri->request_uri = ri->http_version =
+ NULL;
+ ri->num_headers = 0;
+
+ /* RFC says that all initial whitespaces should be ingored */
+ /* This included all leading \r and \n (isspace) */
+ /* See table: http://www.cplusplus.com/reference/cctype/ */
+ while ((len > 0) && isspace((unsigned char)*buf)) {
+ buf++;
+ len--;
+ init_skip++;
+ }
+
+ if (len == 0) {
+ /* Incomplete request */
+ return 0;
+ }
+
+ /* Control characters are not allowed, including zero */
+ if (iscntrl((unsigned char)*buf)) {
+ return -1;
+ }
+
+ /* Find end of HTTP header */
+ request_length = get_http_header_len(buf, len);
+ if (request_length <= 0) {
+ return request_length;
+ }
+ buf[request_length - 1] = '\0';
+
+ if ((*buf == 0) || (*buf == '\r') || (*buf == '\n')) {
+ return -1;
+ }
+
+ /* The first word has to be the HTTP method */
+ ri->request_method = buf;
+
+ if (skip_to_end_of_word_and_terminate(&buf, 0) <= 0) {
+ return -1;
+ }
+
+ /* Check for a valid http method */
+ if (!is_valid_http_method(ri->request_method)) {
+ return -1;
+ }
+
+ /* The second word is the URI */
+ ri->request_uri = buf;
+
+ if (skip_to_end_of_word_and_terminate(&buf, 0) <= 0) {
+ return -1;
+ }
+
+ /* Next would be the HTTP version */
+ ri->http_version = buf;
+
+ if (skip_to_end_of_word_and_terminate(&buf, 1) <= 0) {
+ return -1;
+ }
+
+ /* Check for a valid HTTP version key */
+ if (strncmp(ri->http_version, "HTTP/", 5) != 0) {
+ /* Invalid request */
+ return -1;
+ }
+ ri->http_version += 5;
+
+
+ /* Parse all HTTP headers */
+ ri->num_headers = parse_http_headers(&buf, ri->http_headers);
+ if (ri->num_headers < 0) {
+ /* Error while parsing headers */
+ return -1;
+ }
+
+ return request_length + init_skip;
+}
+
+
+static int
+parse_http_response(char *buf, int len, struct mg_response_info *ri)
+{
+ int response_length;
+ int init_skip = 0;
+ char *tmp, *tmp2;
+ long l;
+
+ /* Initialize elements. */
+ ri->http_version = ri->status_text = NULL;
+ ri->num_headers = ri->status_code = 0;
+
+ /* RFC says that all initial whitespaces should be ingored */
+ /* This included all leading \r and \n (isspace) */
+ /* See table: http://www.cplusplus.com/reference/cctype/ */
+ while ((len > 0) && isspace((unsigned char)*buf)) {
+ buf++;
+ len--;
+ init_skip++;
+ }
+
+ if (len == 0) {
+ /* Incomplete request */
+ return 0;
+ }
+
+ /* Control characters are not allowed, including zero */
+ if (iscntrl((unsigned char)*buf)) {
+ return -1;
+ }
+
+ /* Find end of HTTP header */
+ response_length = get_http_header_len(buf, len);
+ if (response_length <= 0) {
+ return response_length;
+ }
+ buf[response_length - 1] = '\0';
+
+ if ((*buf == 0) || (*buf == '\r') || (*buf == '\n')) {
+ return -1;
+ }
+
+ /* The first word is the HTTP version */
+ /* Check for a valid HTTP version key */
+ if (strncmp(buf, "HTTP/", 5) != 0) {
+ /* Invalid request */
+ return -1;
+ }
+ buf += 5;
+ if (!isgraph((unsigned char)buf[0])) {
+ /* Invalid request */
+ return -1;
+ }
+ ri->http_version = buf;
+
+ if (skip_to_end_of_word_and_terminate(&buf, 0) <= 0) {
+ return -1;
+ }
+
+ /* The second word is the status as a number */
+ tmp = buf;
+
+ if (skip_to_end_of_word_and_terminate(&buf, 0) <= 0) {
+ return -1;
+ }
+
+ l = strtol(tmp, &tmp2, 10);
+ if ((l < 100) || (l >= 1000) || ((tmp2 - tmp) != 3) || (*tmp2 != 0)) {
+ /* Everything else but a 3 digit code is invalid */
+ return -1;
+ }
+ ri->status_code = (int)l;
+
+ /* The rest of the line is the status text */
+ ri->status_text = buf;
+
+ /* Find end of status text */
+ /* isgraph or isspace = isprint */
+ while (isprint((unsigned char)*buf)) {
+ buf++;
+ }
+ if ((*buf != '\r') && (*buf != '\n')) {
+ return -1;
+ }
+ /* Terminate string and forward buf to next line */
+ do {
+ *buf = 0;
+ buf++;
+ } while (isspace((unsigned char)*buf));
+
+
+ /* Parse all HTTP headers */
+ ri->num_headers = parse_http_headers(&buf, ri->http_headers);
+ if (ri->num_headers < 0) {
+ /* Error while parsing headers */
+ return -1;
+ }
+
+ return response_length + init_skip;
+}
+
+
+/* Keep reading the input (either opened file descriptor fd, or socket sock,
+ * or SSL descriptor ssl) into buffer buf, until \r\n\r\n appears in the
+ * buffer (which marks the end of HTTP request). Buffer buf may already
+ * have some data. The length of the data is stored in nread.
+ * Upon every read operation, increase nread by the number of bytes read. */
+static int
+read_message(FILE *fp,
+ struct mg_connection *conn,
+ char *buf,
+ int bufsiz,
+ int *nread)
+{
+ int request_len, n = 0;
+ struct timespec last_action_time;
+ double request_timeout;
+
+ if (!conn) {
+ return 0;
+ }
+
+ memset(&last_action_time, 0, sizeof(last_action_time));
+
+ if (conn->dom_ctx->config[REQUEST_TIMEOUT]) {
+ /* value of request_timeout is in seconds, config in milliseconds */
+ request_timeout = atof(conn->dom_ctx->config[REQUEST_TIMEOUT]) / 1000.0;
+ } else {
+ request_timeout = -1.0;
+ }
+ if (conn->handled_requests > 0) {
+ if (conn->dom_ctx->config[KEEP_ALIVE_TIMEOUT]) {
+ request_timeout =
+ atof(conn->dom_ctx->config[KEEP_ALIVE_TIMEOUT]) / 1000.0;
+ }
+ }
+
+ request_len = get_http_header_len(buf, *nread);
+
+ while (request_len == 0) {
+ /* Full request not yet received */
+ if (conn->phys_ctx->stop_flag != 0) {
+ /* Server is to be stopped. */
+ return -1;
+ }
+
+ if (*nread >= bufsiz) {
+ /* Request too long */
+ return -2;
+ }
+
+ n = pull_inner(
+ fp, conn, buf + *nread, bufsiz - *nread, request_timeout);
+ if (n == -2) {
+ /* Receive error */
+ return -1;
+ }
+
+ /* update clock after every read request */
+ clock_gettime(CLOCK_MONOTONIC, &last_action_time);
+
+ if (n > 0) {
+ *nread += n;
+ request_len = get_http_header_len(buf, *nread);
+ } else {
+ request_len = 0;
+ }
+
+ if ((request_len == 0) && (request_timeout >= 0)) {
+ if (mg_difftimespec(&last_action_time, &(conn->req_time))
+ > request_timeout) {
+ /* Timeout */
+ return -1;
+ }
+ }
+ }
+
+ return request_len;
+}
+
+
+#if !defined(NO_CGI) || !defined(NO_FILES)
+static int
+forward_body_data(struct mg_connection *conn, FILE *fp, SOCKET sock, SSL *ssl)
+{
+ const char *expect;
+ char buf[MG_BUF_LEN];
+ int success = 0;
+
+ if (!conn) {
+ return 0;
+ }
+
+ expect = mg_get_header(conn, "Expect");
+ DEBUG_ASSERT(fp != NULL);
+ if (!fp) {
+ mg_send_http_error(conn, 500, "%s", "Error: NULL File");
+ return 0;
+ }
+
+ if ((expect != NULL) && (mg_strcasecmp(expect, "100-continue") != 0)) {
+ /* Client sent an "Expect: xyz" header and xyz is not 100-continue.
+ */
+ mg_send_http_error(conn,
+ 417,
+ "Error: Can not fulfill expectation %s",
+ expect);
+ } else {
+ if (expect != NULL) {
+ (void)mg_printf(conn, "%s", "HTTP/1.1 100 Continue\r\n\r\n");
+ conn->status_code = 100;
+ } else {
+ conn->status_code = 200;
+ }
+
+ DEBUG_ASSERT(conn->consumed_content == 0);
+
+ if (conn->consumed_content != 0) {
+ mg_send_http_error(conn, 500, "%s", "Error: Size mismatch");
+ return 0;
+ }
+
+ for (;;) {
+ int nread = mg_read(conn, buf, sizeof(buf));
+ if (nread <= 0) {
+ success = (nread == 0);
+ break;
+ }
+ if (push_all(conn->phys_ctx, fp, sock, ssl, buf, nread) != nread) {
+ break;
+ }
+ }
+
+ /* Each error code path in this function must send an error */
+ if (!success) {
+ /* NOTE: Maybe some data has already been sent. */
+ /* TODO (low): If some data has been sent, a correct error
+ * reply can no longer be sent, so just close the connection */
+ mg_send_http_error(conn, 500, "%s", "");
+ }
+ }
+
+ return success;
+}
+#endif
+
+
+#if defined(USE_TIMERS)
+
+#define TIMER_API static
+#include "timer.inl"
+
+#endif /* USE_TIMERS */
+
+
+#if !defined(NO_CGI)
+/* This structure helps to create an environment for the spawned CGI
+ * program.
+ * Environment is an array of "VARIABLE=VALUE\0" ASCIIZ strings,
+ * last element must be NULL.
+ * However, on Windows there is a requirement that all these
+ * VARIABLE=VALUE\0
+ * strings must reside in a contiguous buffer. The end of the buffer is
+ * marked by two '\0' characters.
+ * We satisfy both worlds: we create an envp array (which is vars), all
+ * entries are actually pointers inside buf. */
+struct cgi_environment {
+ struct mg_connection *conn;
+ /* Data block */
+ char *buf; /* Environment buffer */
+ size_t buflen; /* Space available in buf */
+ size_t bufused; /* Space taken in buf */
+ /* Index block */
+ char **var; /* char **envp */
+ size_t varlen; /* Number of variables available in var */
+ size_t varused; /* Number of variables stored in var */
+};
+
+
+static void addenv(struct cgi_environment *env,
+ PRINTF_FORMAT_STRING(const char *fmt),
+ ...) PRINTF_ARGS(2, 3);
+
+/* Append VARIABLE=VALUE\0 string to the buffer, and add a respective
+ * pointer into the vars array. Assumes env != NULL and fmt != NULL. */
+static void
+addenv(struct cgi_environment *env, const char *fmt, ...)
+{
+ size_t i, n, space;
+ int truncated = 0;
+ char *added;
+ va_list ap;
+
+ if ((env->varlen - env->varused) < 2) {
+ mg_cry_internal(env->conn,
+ "%s: Cannot register CGI variable [%s]",
+ __func__,
+ fmt);
+ return;
+ }
+
+ /* Calculate how much space is left in the buffer */
+ space = (env->buflen - env->bufused);
+
+ do {
+ /* Space for "\0\0" is always needed. */
+ if (space <= 2) {
+ /* Allocate new buffer */
+ n = env->buflen + CGI_ENVIRONMENT_SIZE;
+ added = (char *)mg_realloc_ctx(env->buf, n, env->conn->phys_ctx);
+ if (!added) {
+ /* Out of memory */
+ mg_cry_internal(
+ env->conn,
+ "%s: Cannot allocate memory for CGI variable [%s]",
+ __func__,
+ fmt);
+ return;
+ }
+ /* Retarget pointers */
+ env->buf = added;
+ env->buflen = n;
+ for (i = 0, n = 0; i < env->varused; i++) {
+ env->var[i] = added + n;
+ n += strlen(added + n) + 1;
+ }
+ space = (env->buflen - env->bufused);
+ }
+
+ /* Make a pointer to the free space int the buffer */
+ added = env->buf + env->bufused;
+
+ /* Copy VARIABLE=VALUE\0 string into the free space */
+ va_start(ap, fmt);
+ mg_vsnprintf(env->conn, &truncated, added, space - 1, fmt, ap);
+ va_end(ap);
+
+ /* Do not add truncated strings to the environment */
+ if (truncated) {
+ /* Reallocate the buffer */
+ space = 0;
+ }
+ } while (truncated);
+
+ /* Calculate number of bytes added to the environment */
+ n = strlen(added) + 1;
+ env->bufused += n;
+
+ /* Append a pointer to the added string into the envp array */
+ env->var[env->varused] = added;
+ env->varused++;
+}
+
+/* Return 0 on success, non-zero if an error occurs. */
+
+static int
+prepare_cgi_environment(struct mg_connection *conn,
+ const char *prog,
+ struct cgi_environment *env)
+{
+ const char *s;
+ struct vec var_vec;
+ char *p, src_addr[IP_ADDR_STR_LEN], http_var_name[128];
+ int i, truncated, uri_len;
+
+ if ((conn == NULL) || (prog == NULL) || (env == NULL)) {
+ return -1;
+ }
+
+ env->conn = conn;
+ env->buflen = CGI_ENVIRONMENT_SIZE;
+ env->bufused = 0;
+ env->buf = (char *)mg_malloc_ctx(env->buflen, conn->phys_ctx);
+ if (env->buf == NULL) {
+ mg_cry_internal(conn,
+ "%s: Not enough memory for environmental buffer",
+ __func__);
+ return -1;
+ }
+ env->varlen = MAX_CGI_ENVIR_VARS;
+ env->varused = 0;
+ env->var =
+ (char **)mg_malloc_ctx(env->varlen * sizeof(char *), conn->phys_ctx);
+ if (env->var == NULL) {
+ mg_cry_internal(conn,
+ "%s: Not enough memory for environmental variables",
+ __func__);
+ mg_free(env->buf);
+ return -1;
+ }
+
+ addenv(env, "SERVER_NAME=%s", conn->dom_ctx->config[AUTHENTICATION_DOMAIN]);
+ addenv(env, "SERVER_ROOT=%s", conn->dom_ctx->config[DOCUMENT_ROOT]);
+ addenv(env, "DOCUMENT_ROOT=%s", conn->dom_ctx->config[DOCUMENT_ROOT]);
+ addenv(env, "SERVER_SOFTWARE=CivetWeb/%s", mg_version());
+
+ /* Prepare the environment block */
+ addenv(env, "%s", "GATEWAY_INTERFACE=CGI/1.1");
+ addenv(env, "%s", "SERVER_PROTOCOL=HTTP/1.1");
+ addenv(env, "%s", "REDIRECT_STATUS=200"); /* For PHP */
+
+#if defined(USE_IPV6)
+ if (conn->client.lsa.sa.sa_family == AF_INET6) {
+ addenv(env, "SERVER_PORT=%d", ntohs(conn->client.lsa.sin6.sin6_port));
+ } else
+#endif
+ {
+ addenv(env, "SERVER_PORT=%d", ntohs(conn->client.lsa.sin.sin_port));
+ }
+
+ sockaddr_to_string(src_addr, sizeof(src_addr), &conn->client.rsa);
+ addenv(env, "REMOTE_ADDR=%s", src_addr);
+
+ addenv(env, "REQUEST_METHOD=%s", conn->request_info.request_method);
+ addenv(env, "REMOTE_PORT=%d", conn->request_info.remote_port);
+
+ addenv(env, "REQUEST_URI=%s", conn->request_info.request_uri);
+ addenv(env, "LOCAL_URI=%s", conn->request_info.local_uri);
+
+ /* SCRIPT_NAME */
+ uri_len = (int)strlen(conn->request_info.local_uri);
+ if (conn->path_info == NULL) {
+ if (conn->request_info.local_uri[uri_len - 1] != '/') {
+ /* URI: /path_to_script/script.cgi */
+ addenv(env, "SCRIPT_NAME=%s", conn->request_info.local_uri);
+ } else {
+ /* URI: /path_to_script/ ... using index.cgi */
+ const char *index_file = strrchr(prog, '/');
+ if (index_file) {
+ addenv(env,
+ "SCRIPT_NAME=%s%s",
+ conn->request_info.local_uri,
+ index_file + 1);
+ }
+ }
+ } else {
+ /* URI: /path_to_script/script.cgi/path_info */
+ addenv(env,
+ "SCRIPT_NAME=%.*s",
+ uri_len - (int)strlen(conn->path_info),
+ conn->request_info.local_uri);
+ }
+
+ addenv(env, "SCRIPT_FILENAME=%s", prog);
+ if (conn->path_info == NULL) {
+ addenv(env, "PATH_TRANSLATED=%s", conn->dom_ctx->config[DOCUMENT_ROOT]);
+ } else {
+ addenv(env,
+ "PATH_TRANSLATED=%s%s",
+ conn->dom_ctx->config[DOCUMENT_ROOT],
+ conn->path_info);
+ }
+
+ addenv(env, "HTTPS=%s", (conn->ssl == NULL) ? "off" : "on");
+
+ if ((s = mg_get_header(conn, "Content-Type")) != NULL) {
+ addenv(env, "CONTENT_TYPE=%s", s);
+ }
+ if (conn->request_info.query_string != NULL) {
+ addenv(env, "QUERY_STRING=%s", conn->request_info.query_string);
+ }
+ if ((s = mg_get_header(conn, "Content-Length")) != NULL) {
+ addenv(env, "CONTENT_LENGTH=%s", s);
+ }
+ if ((s = getenv("PATH")) != NULL) {
+ addenv(env, "PATH=%s", s);
+ }
+ if (conn->path_info != NULL) {
+ addenv(env, "PATH_INFO=%s", conn->path_info);
+ }
+
+ if (conn->status_code > 0) {
+ /* CGI error handler should show the status code */
+ addenv(env, "STATUS=%d", conn->status_code);
+ }
+
+#if defined(_WIN32)
+ if ((s = getenv("COMSPEC")) != NULL) {
+ addenv(env, "COMSPEC=%s", s);
+ }
+ if ((s = getenv("SYSTEMROOT")) != NULL) {
+ addenv(env, "SYSTEMROOT=%s", s);
+ }
+ if ((s = getenv("SystemDrive")) != NULL) {
+ addenv(env, "SystemDrive=%s", s);
+ }
+ if ((s = getenv("ProgramFiles")) != NULL) {
+ addenv(env, "ProgramFiles=%s", s);
+ }
+ if ((s = getenv("ProgramFiles(x86)")) != NULL) {
+ addenv(env, "ProgramFiles(x86)=%s", s);
+ }
+#else
+ if ((s = getenv("LD_LIBRARY_PATH")) != NULL) {
+ addenv(env, "LD_LIBRARY_PATH=%s", s);
+ }
+#endif /* _WIN32 */
+
+ if ((s = getenv("PERLLIB")) != NULL) {
+ addenv(env, "PERLLIB=%s", s);
+ }
+
+ if (conn->request_info.remote_user != NULL) {
+ addenv(env, "REMOTE_USER=%s", conn->request_info.remote_user);
+ addenv(env, "%s", "AUTH_TYPE=Digest");
+ }
+
+ /* Add all headers as HTTP_* variables */
+ for (i = 0; i < conn->request_info.num_headers; i++) {
+
+ (void)mg_snprintf(conn,
+ &truncated,
+ http_var_name,
+ sizeof(http_var_name),
+ "HTTP_%s",
+ conn->request_info.http_headers[i].name);
+
+ if (truncated) {
+ mg_cry_internal(conn,
+ "%s: HTTP header variable too long [%s]",
+ __func__,
+ conn->request_info.http_headers[i].name);
+ continue;
+ }
+
+ /* Convert variable name into uppercase, and change - to _ */
+ for (p = http_var_name; *p != '\0'; p++) {
+ if (*p == '-') {
+ *p = '_';
+ }
+ *p = (char)toupper((unsigned char)*p);
+ }
+
+ addenv(env,
+ "%s=%s",
+ http_var_name,
+ conn->request_info.http_headers[i].value);
+ }
+
+ /* Add user-specified variables */
+ s = conn->dom_ctx->config[CGI_ENVIRONMENT];
+ while ((s = next_option(s, &var_vec, NULL)) != NULL) {
+ addenv(env, "%.*s", (int)var_vec.len, var_vec.ptr);
+ }
+
+ env->var[env->varused] = NULL;
+ env->buf[env->bufused] = '\0';
+
+ return 0;
+}
+
+
+/* Data for CGI process control: PID and number of references */
+struct process_control_data {
+ pid_t pid;
+ int references;
+};
+
+static int
+abort_process(void *data)
+{
+ /* Waitpid checks for child status and won't work for a pid that does not
+ * identify a child of the current process. Thus, if the pid is reused,
+ * we will not affect a different process. */
+ struct process_control_data *proc = (struct process_control_data *)data;
+ int status = 0;
+ int refs;
+ pid_t ret_pid;
+
+ ret_pid = waitpid(proc->pid, &status, WNOHANG);
+ if ((ret_pid != (pid_t)-1) && (status == 0)) {
+ /* Stop child process */
+ DEBUG_TRACE("CGI timer: Stop child process %p\n", proc->pid);
+ kill(proc->pid, SIGABRT);
+
+ /* Wait until process is terminated (don't leave zombies) */
+ while (waitpid(proc->pid, &status, 0) != (pid_t)-1) /* nop */
+ ;
+ } else {
+ DEBUG_TRACE("CGI timer: Child process %p already stopped\n", proc->pid);
+ }
+ /* Dec reference counter */
+ refs = mg_atomic_dec(&proc->references);
+ if (refs == 0) {
+ /* no more references - free data */
+ mg_free(data);
+ }
+
+ return 0;
+}
+
+
+/* Local (static) function assumes all arguments are valid. */
+static void
+handle_cgi_request(struct mg_connection *conn, const char *prog)
+{
+ char *buf;
+ size_t buflen;
+ int headers_len, data_len, i, truncated;
+ int fdin[2] = {-1, -1}, fdout[2] = {-1, -1}, fderr[2] = {-1, -1};
+ const char *status, *status_text, *connection_state;
+ char *pbuf, dir[PATH_MAX], *p;
+ struct mg_request_info ri;
+ struct cgi_environment blk;
+ FILE *in = NULL, *out = NULL, *err = NULL;
+ struct mg_file fout = STRUCT_FILE_INITIALIZER;
+ pid_t pid = (pid_t)-1;
+ struct process_control_data *proc = NULL;
+
+#if defined(USE_TIMERS)
+ double cgi_timeout = -1.0;
+ if (conn->dom_ctx->config[CGI_TIMEOUT]) {
+ /* Get timeout in seconds */
+ cgi_timeout = atof(conn->dom_ctx->config[CGI_TIMEOUT]) * 0.001;
+ }
+#endif
+
+ buf = NULL;
+ buflen = conn->phys_ctx->max_request_size;
+ i = prepare_cgi_environment(conn, prog, &blk);
+ if (i != 0) {
+ blk.buf = NULL;
+ blk.var = NULL;
+ goto done;
+ }
+
+ /* CGI must be executed in its own directory. 'dir' must point to the
+ * directory containing executable program, 'p' must point to the
+ * executable program name relative to 'dir'. */
+ (void)mg_snprintf(conn, &truncated, dir, sizeof(dir), "%s", prog);
+
+ if (truncated) {
+ mg_cry_internal(conn, "Error: CGI program \"%s\": Path too long", prog);
+ mg_send_http_error(conn, 500, "Error: %s", "CGI path too long");
+ goto done;
+ }
+
+ if ((p = strrchr(dir, '/')) != NULL) {
+ *p++ = '\0';
+ } else {
+ dir[0] = '.';
+ dir[1] = '\0';
+ p = (char *)prog;
+ }
+
+ if ((pipe(fdin) != 0) || (pipe(fdout) != 0) || (pipe(fderr) != 0)) {
+ status = strerror(ERRNO);
+ mg_cry_internal(
+ conn,
+ "Error: CGI program \"%s\": Can not create CGI pipes: %s",
+ prog,
+ status);
+ mg_send_http_error(conn,
+ 500,
+ "Error: Cannot create CGI pipe: %s",
+ status);
+ goto done;
+ }
+
+ proc = (struct process_control_data *)
+ mg_malloc_ctx(sizeof(struct process_control_data), conn->phys_ctx);
+ if (proc == NULL) {
+ mg_cry_internal(conn, "Error: CGI program \"%s\": Out or memory", prog);
+ mg_send_http_error(conn, 500, "Error: Out of memory [%s]", prog);
+ goto done;
+ }
+
+ DEBUG_TRACE("CGI: spawn %s %s\n", dir, p);
+ pid = spawn_process(conn, p, blk.buf, blk.var, fdin, fdout, fderr, dir);
+
+ if (pid == (pid_t)-1) {
+ status = strerror(ERRNO);
+ mg_cry_internal(
+ conn,
+ "Error: CGI program \"%s\": Can not spawn CGI process: %s",
+ prog,
+ status);
+ mg_send_http_error(conn,
+ 500,
+ "Error: Cannot spawn CGI process [%s]: %s",
+ prog,
+ status);
+ mg_free(proc);
+ proc = NULL;
+ goto done;
+ }
+
+ /* Store data in shared process_control_data */
+ proc->pid = pid;
+ proc->references = 1;
+
+#if defined(USE_TIMERS)
+ if (cgi_timeout > 0.0) {
+ proc->references = 2;
+
+ // Start a timer for CGI
+ timer_add(conn->phys_ctx,
+ cgi_timeout /* in seconds */,
+ 0.0,
+ 1,
+ abort_process,
+ (void *)proc);
+ }
+#endif
+
+ /* Parent closes only one side of the pipes.
+ * If we don't mark them as closed, close() attempt before
+ * return from this function throws an exception on Windows.
+ * Windows does not like when closed descriptor is closed again. */
+ (void)close(fdin[0]);
+ (void)close(fdout[1]);
+ (void)close(fderr[1]);
+ fdin[0] = fdout[1] = fderr[1] = -1;
+
+ if (((in = fdopen(fdin[1], "wb")) == NULL)
+ || ((out = fdopen(fdout[0], "rb")) == NULL)
+ || ((err = fdopen(fderr[0], "rb")) == NULL)) {
+ status = strerror(ERRNO);
+ mg_cry_internal(conn,
+ "Error: CGI program \"%s\": Can not open fd: %s",
+ prog,
+ status);
+ mg_send_http_error(conn,
+ 500,
+ "Error: CGI can not open fd\nfdopen: %s",
+ status);
+ goto done;
+ }
+
+ setbuf(in, NULL);
+ setbuf(out, NULL);
+ setbuf(err, NULL);
+ fout.access.fp = out;
+
+ if ((conn->content_len != 0) || (conn->is_chunked)) {
+ DEBUG_TRACE("CGI: send body data (%" INT64_FMT ")\n",
+ conn->content_len);
+
+ /* This is a POST/PUT request, or another request with body data. */
+ if (!forward_body_data(conn, in, INVALID_SOCKET, NULL)) {
+ /* Error sending the body data */
+ mg_cry_internal(
+ conn,
+ "Error: CGI program \"%s\": Forward body data failed",
+ prog);
+ goto done;
+ }
+ }
+
+ /* Close so child gets an EOF. */
+ fclose(in);
+ in = NULL;
+ fdin[1] = -1;
+
+ /* Now read CGI reply into a buffer. We need to set correct
+ * status code, thus we need to see all HTTP headers first.
+ * Do not send anything back to client, until we buffer in all
+ * HTTP headers. */
+ data_len = 0;
+ buf = (char *)mg_malloc_ctx(buflen, conn->phys_ctx);
+ if (buf == NULL) {
+ mg_send_http_error(conn,
+ 500,
+ "Error: Not enough memory for CGI buffer (%u bytes)",
+ (unsigned int)buflen);
+ mg_cry_internal(
+ conn,
+ "Error: CGI program \"%s\": Not enough memory for buffer (%u "
+ "bytes)",
+ prog,
+ (unsigned int)buflen);
+ goto done;
+ }
+
+ DEBUG_TRACE("CGI: %s", "wait for response");
+ headers_len = read_message(out, conn, buf, (int)buflen, &data_len);
+ DEBUG_TRACE("CGI: response: %li", (signed long)headers_len);
+
+ if (headers_len <= 0) {
+
+ /* Could not parse the CGI response. Check if some error message on
+ * stderr. */
+ i = pull_all(err, conn, buf, (int)buflen);
+ if (i > 0) {
+ /* CGI program explicitly sent an error */
+ /* Write the error message to the internal log */
+ mg_cry_internal(conn,
+ "Error: CGI program \"%s\" sent error "
+ "message: [%.*s]",
+ prog,
+ i,
+ buf);
+ /* Don't send the error message back to the client */
+ mg_send_http_error(conn,
+ 500,
+ "Error: CGI program \"%s\" failed.",
+ prog);
+ } else {
+ /* CGI program did not explicitly send an error, but a broken
+ * respon header */
+ mg_cry_internal(conn,
+ "Error: CGI program sent malformed or too big "
+ "(>%u bytes) HTTP headers: [%.*s]",
+ (unsigned)buflen,
+ data_len,
+ buf);
+
+ mg_send_http_error(conn,
+ 500,
+ "Error: CGI program sent malformed or too big "
+ "(>%u bytes) HTTP headers: [%.*s]",
+ (unsigned)buflen,
+ data_len,
+ buf);
+ }
+
+ /* in both cases, abort processing CGI */
+ goto done;
+ }
+
+ pbuf = buf;
+ buf[headers_len - 1] = '\0';
+ ri.num_headers = parse_http_headers(&pbuf, ri.http_headers);
+
+ /* Make up and send the status line */
+ status_text = "OK";
+ if ((status = get_header(ri.http_headers, ri.num_headers, "Status"))
+ != NULL) {
+ conn->status_code = atoi(status);
+ status_text = status;
+ while (isdigit((unsigned char)*status_text) || *status_text == ' ') {
+ status_text++;
+ }
+ } else if (get_header(ri.http_headers, ri.num_headers, "Location")
+ != NULL) {
+ conn->status_code = 307;
+ } else {
+ conn->status_code = 200;
+ }
+ connection_state =
+ get_header(ri.http_headers, ri.num_headers, "Connection");
+ if (!header_has_option(connection_state, "keep-alive")) {
+ conn->must_close = 1;
+ }
+
+ DEBUG_TRACE("CGI: response %u %s", conn->status_code, status_text);
+
+ (void)mg_printf(conn, "HTTP/1.1 %d %s\r\n", conn->status_code, status_text);
+
+ /* Send headers */
+ for (i = 0; i < ri.num_headers; i++) {
+ mg_printf(conn,
+ "%s: %s\r\n",
+ ri.http_headers[i].name,
+ ri.http_headers[i].value);
+ }
+ mg_write(conn, "\r\n", 2);
+
+ /* Send chunk of data that may have been read after the headers */
+ mg_write(conn, buf + headers_len, (size_t)(data_len - headers_len));
+
+ /* Read the rest of CGI output and send to the client */
+ DEBUG_TRACE("CGI: %s", "forward all data");
+ send_file_data(conn, &fout, 0, INT64_MAX);
+ DEBUG_TRACE("CGI: %s", "all data sent");
+
+done:
+ mg_free(blk.var);
+ mg_free(blk.buf);
+
+ if (pid != (pid_t)-1) {
+ abort_process((void *)proc);
+ }
+
+ if (fdin[0] != -1) {
+ close(fdin[0]);
+ }
+ if (fdout[1] != -1) {
+ close(fdout[1]);
+ }
+ if (fderr[1] != -1) {
+ close(fderr[1]);
+ }
+
+ if (in != NULL) {
+ fclose(in);
+ } else if (fdin[1] != -1) {
+ close(fdin[1]);
+ }
+
+ if (out != NULL) {
+ fclose(out);
+ } else if (fdout[0] != -1) {
+ close(fdout[0]);
+ }
+
+ if (err != NULL) {
+ fclose(err);
+ } else if (fderr[0] != -1) {
+ close(fderr[0]);
+ }
+
+ mg_free(buf);
+}
+#endif /* !NO_CGI */
+
+
+#if !defined(NO_FILES)
+static void
+mkcol(struct mg_connection *conn, const char *path)
+{
+ int rc, body_len;
+ struct de de;
+ char date[64];
+ time_t curtime = time(NULL);
+
+ if (conn == NULL) {
+ return;
+ }
+
+ /* TODO (mid): Check the mg_send_http_error situations in this function
+ */
+
+ memset(&de.file, 0, sizeof(de.file));
+ if (!mg_stat(conn, path, &de.file)) {
+ mg_cry_internal(conn,
+ "%s: mg_stat(%s) failed: %s",
+ __func__,
+ path,
+ strerror(ERRNO));
+ }
+
+ if (de.file.last_modified) {
+ /* TODO (mid): This check does not seem to make any sense ! */
+ /* TODO (mid): Add a webdav unit test first, before changing
+ * anything here. */
+ mg_send_http_error(
+ conn, 405, "Error: mkcol(%s): %s", path, strerror(ERRNO));
+ return;
+ }
+
+ body_len = conn->data_len - conn->request_len;
+ if (body_len > 0) {
+ mg_send_http_error(
+ conn, 415, "Error: mkcol(%s): %s", path, strerror(ERRNO));
+ return;
+ }
+
+ rc = mg_mkdir(conn, path, 0755);
+
+ if (rc == 0) {
+ conn->status_code = 201;
+ gmt_time_string(date, sizeof(date), &curtime);
+ mg_printf(conn,
+ "HTTP/1.1 %d Created\r\n"
+ "Date: %s\r\n",
+ conn->status_code,
+ date);
+ send_static_cache_header(conn);
+ send_additional_header(conn);
+ mg_printf(conn,
+ "Content-Length: 0\r\n"
+ "Connection: %s\r\n\r\n",
+ suggest_connection_header(conn));
+ } else {
+ if (errno == EEXIST) {
+ mg_send_http_error(
+ conn, 405, "Error: mkcol(%s): %s", path, strerror(ERRNO));
+ } else if (errno == EACCES) {
+ mg_send_http_error(
+ conn, 403, "Error: mkcol(%s): %s", path, strerror(ERRNO));
+ } else if (errno == ENOENT) {
+ mg_send_http_error(
+ conn, 409, "Error: mkcol(%s): %s", path, strerror(ERRNO));
+ } else {
+ mg_send_http_error(
+ conn, 500, "fopen(%s): %s", path, strerror(ERRNO));
+ }
+ }
+}
+
+
+static void
+put_file(struct mg_connection *conn, const char *path)
+{
+ struct mg_file file = STRUCT_FILE_INITIALIZER;
+ const char *range;
+ int64_t r1, r2;
+ int rc;
+ char date[64];
+ time_t curtime = time(NULL);
+
+ if (conn == NULL) {
+ return;
+ }
+
+ if (mg_stat(conn, path, &file.stat)) {
+ /* File already exists */
+ conn->status_code = 200;
+
+ if (file.stat.is_directory) {
+ /* This is an already existing directory,
+ * so there is nothing to do for the server. */
+ rc = 0;
+
+ } else {
+ /* File exists and is not a directory. */
+ /* Can it be replaced? */
+
+#if defined(MG_USE_OPEN_FILE)
+ if (file.access.membuf != NULL) {
+ /* This is an "in-memory" file, that can not be replaced */
+ mg_send_http_error(conn,
+ 405,
+ "Error: Put not possible\nReplacing %s "
+ "is not supported",
+ path);
+ return;
+ }
+#endif
+
+ /* Check if the server may write this file */
+ if (access(path, W_OK) == 0) {
+ /* Access granted */
+ conn->status_code = 200;
+ rc = 1;
+ } else {
+ mg_send_http_error(
+ conn,
+ 403,
+ "Error: Put not possible\nReplacing %s is not allowed",
+ path);
+ return;
+ }
+ }
+ } else {
+ /* File should be created */
+ conn->status_code = 201;
+ rc = put_dir(conn, path);
+ }
+
+ if (rc == 0) {
+ /* put_dir returns 0 if path is a directory */
+ gmt_time_string(date, sizeof(date), &curtime);
+ mg_printf(conn,
+ "HTTP/1.1 %d %s\r\n",
+ conn->status_code,
+ mg_get_response_code_text(NULL, conn->status_code));
+ send_no_cache_header(conn);
+ send_additional_header(conn);
+ mg_printf(conn,
+ "Date: %s\r\n"
+ "Content-Length: 0\r\n"
+ "Connection: %s\r\n\r\n",
+ date,
+ suggest_connection_header(conn));
+
+ /* Request to create a directory has been fulfilled successfully.
+ * No need to put a file. */
+ return;
+ }
+
+ if (rc == -1) {
+ /* put_dir returns -1 if the path is too long */
+ mg_send_http_error(conn,
+ 414,
+ "Error: Path too long\nput_dir(%s): %s",
+ path,
+ strerror(ERRNO));
+ return;
+ }
+
+ if (rc == -2) {
+ /* put_dir returns -2 if the directory can not be created */
+ mg_send_http_error(conn,
+ 500,
+ "Error: Can not create directory\nput_dir(%s): %s",
+ path,
+ strerror(ERRNO));
+ return;
+ }
+
+ /* A file should be created or overwritten. */
+ /* Currently CivetWeb does not nead read+write access. */
+ if (!mg_fopen(conn, path, MG_FOPEN_MODE_WRITE, &file)
+ || file.access.fp == NULL) {
+ (void)mg_fclose(&file.access);
+ mg_send_http_error(conn,
+ 500,
+ "Error: Can not create file\nfopen(%s): %s",
+ path,
+ strerror(ERRNO));
+ return;
+ }
+
+ fclose_on_exec(&file.access, conn);
+ range = mg_get_header(conn, "Content-Range");
+ r1 = r2 = 0;
+ if ((range != NULL) && parse_range_header(range, &r1, &r2) > 0) {
+ conn->status_code = 206; /* Partial content */
+ fseeko(file.access.fp, r1, SEEK_SET);
+ }
+
+ if (!forward_body_data(conn, file.access.fp, INVALID_SOCKET, NULL)) {
+ /* forward_body_data failed.
+ * The error code has already been sent to the client,
+ * and conn->status_code is already set. */
+ (void)mg_fclose(&file.access);
+ return;
+ }
+
+ if (mg_fclose(&file.access) != 0) {
+ /* fclose failed. This might have different reasons, but a likely
+ * one is "no space on disk", http 507. */
+ conn->status_code = 507;
+ }
+
+ gmt_time_string(date, sizeof(date), &curtime);
+ mg_printf(conn,
+ "HTTP/1.1 %d %s\r\n",
+ conn->status_code,
+ mg_get_response_code_text(NULL, conn->status_code));
+ send_no_cache_header(conn);
+ send_additional_header(conn);
+ mg_printf(conn,
+ "Date: %s\r\n"
+ "Content-Length: 0\r\n"
+ "Connection: %s\r\n\r\n",
+ date,
+ suggest_connection_header(conn));
+}
+
+
+static void
+delete_file(struct mg_connection *conn, const char *path)
+{
+ struct de de;
+ memset(&de.file, 0, sizeof(de.file));
+ if (!mg_stat(conn, path, &de.file)) {
+ /* mg_stat returns 0 if the file does not exist */
+ mg_send_http_error(conn,
+ 404,
+ "Error: Cannot delete file\nFile %s not found",
+ path);
+ return;
+ }
+
+#if 0 /* Ignore if a file in memory is inside a folder */
+ if (de.access.membuf != NULL) {
+ /* the file is cached in memory */
+ mg_send_http_error(
+ conn,
+ 405,
+ "Error: Delete not possible\nDeleting %s is not supported",
+ path);
+ return;
+ }
+#endif
+
+ if (de.file.is_directory) {
+ if (remove_directory(conn, path)) {
+ /* Delete is successful: Return 204 without content. */
+ mg_send_http_error(conn, 204, "%s", "");
+ } else {
+ /* Delete is not successful: Return 500 (Server error). */
+ mg_send_http_error(conn, 500, "Error: Could not delete %s", path);
+ }
+ return;
+ }
+
+ /* This is an existing file (not a directory).
+ * Check if write permission is granted. */
+ if (access(path, W_OK) != 0) {
+ /* File is read only */
+ mg_send_http_error(
+ conn,
+ 403,
+ "Error: Delete not possible\nDeleting %s is not allowed",
+ path);
+ return;
+ }
+
+ /* Try to delete it. */
+ if (mg_remove(conn, path) == 0) {
+ /* Delete was successful: Return 204 without content. */
+ mg_send_http_error(conn, 204, "%s", "");
+ } else {
+ /* Delete not successful (file locked). */
+ mg_send_http_error(conn,
+ 423,
+ "Error: Cannot delete file\nremove(%s): %s",
+ path,
+ strerror(ERRNO));
+ }
+}
+#endif /* !NO_FILES */
+
+
+static void
+send_ssi_file(struct mg_connection *, const char *, struct mg_file *, int);
+
+
+static void
+do_ssi_include(struct mg_connection *conn,
+ const char *ssi,
+ char *tag,
+ int include_level)
+{
+ char file_name[MG_BUF_LEN], path[512], *p;
+ struct mg_file file = STRUCT_FILE_INITIALIZER;
+ size_t len;
+ int truncated = 0;
+
+ if (conn == NULL) {
+ return;
+ }
+
+ /* sscanf() is safe here, since send_ssi_file() also uses buffer
+ * of size MG_BUF_LEN to get the tag. So strlen(tag) is
+ * always < MG_BUF_LEN. */
+ if (sscanf(tag, " virtual=\"%511[^\"]\"", file_name) == 1) {
+ /* File name is relative to the webserver root */
+ file_name[511] = 0;
+ (void)mg_snprintf(conn,
+ &truncated,
+ path,
+ sizeof(path),
+ "%s/%s",
+ conn->dom_ctx->config[DOCUMENT_ROOT],
+ file_name);
+
+ } else if (sscanf(tag, " abspath=\"%511[^\"]\"", file_name) == 1) {
+ /* File name is relative to the webserver working directory
+ * or it is absolute system path */
+ file_name[511] = 0;
+ (void)
+ mg_snprintf(conn, &truncated, path, sizeof(path), "%s", file_name);
+
+ } else if ((sscanf(tag, " file=\"%511[^\"]\"", file_name) == 1)
+ || (sscanf(tag, " \"%511[^\"]\"", file_name) == 1)) {
+ /* File name is relative to the currect document */
+ file_name[511] = 0;
+ (void)mg_snprintf(conn, &truncated, path, sizeof(path), "%s", ssi);
+
+ if (!truncated) {
+ if ((p = strrchr(path, '/')) != NULL) {
+ p[1] = '\0';
+ }
+ len = strlen(path);
+ (void)mg_snprintf(conn,
+ &truncated,
+ path + len,
+ sizeof(path) - len,
+ "%s",
+ file_name);
+ }
+
+ } else {
+ mg_cry_internal(conn, "Bad SSI #include: [%s]", tag);
+ return;
+ }
+
+ if (truncated) {
+ mg_cry_internal(conn, "SSI #include path length overflow: [%s]", tag);
+ return;
+ }
+
+ if (!mg_fopen(conn, path, MG_FOPEN_MODE_READ, &file)) {
+ mg_cry_internal(conn,
+ "Cannot open SSI #include: [%s]: fopen(%s): %s",
+ tag,
+ path,
+ strerror(ERRNO));
+ } else {
+ fclose_on_exec(&file.access, conn);
+ if (match_prefix(conn->dom_ctx->config[SSI_EXTENSIONS],
+ strlen(conn->dom_ctx->config[SSI_EXTENSIONS]),
+ path)
+ > 0) {
+ send_ssi_file(conn, path, &file, include_level + 1);
+ } else {
+ send_file_data(conn, &file, 0, INT64_MAX);
+ }
+ (void)mg_fclose(&file.access); /* Ignore errors for readonly files */
+ }
+}
+
+
+#if !defined(NO_POPEN)
+static void
+do_ssi_exec(struct mg_connection *conn, char *tag)
+{
+ char cmd[1024] = "";
+ struct mg_file file = STRUCT_FILE_INITIALIZER;
+
+ if (sscanf(tag, " \"%1023[^\"]\"", cmd) != 1) {
+ mg_cry_internal(conn, "Bad SSI #exec: [%s]", tag);
+ } else {
+ cmd[1023] = 0;
+ if ((file.access.fp = popen(cmd, "r")) == NULL) {
+ mg_cry_internal(conn,
+ "Cannot SSI #exec: [%s]: %s",
+ cmd,
+ strerror(ERRNO));
+ } else {
+ send_file_data(conn, &file, 0, INT64_MAX);
+ pclose(file.access.fp);
+ }
+ }
+}
+#endif /* !NO_POPEN */
+
+
+static int
+mg_fgetc(struct mg_file *filep, int offset)
+{
+ (void)offset; /* unused in case MG_USE_OPEN_FILE is set */
+
+ if (filep == NULL) {
+ return EOF;
+ }
+#if defined(MG_USE_OPEN_FILE)
+ if ((filep->access.membuf != NULL) && (offset >= 0)
+ && (((unsigned int)(offset)) < filep->stat.size)) {
+ return ((const unsigned char *)filep->access.membuf)[offset];
+ } else /* else block below */
+#endif
+ if (filep->access.fp != NULL) {
+ return fgetc(filep->access.fp);
+ } else {
+ return EOF;
+ }
+}
+
+
+static void
+send_ssi_file(struct mg_connection *conn,
+ const char *path,
+ struct mg_file *filep,
+ int include_level)
+{
+ char buf[MG_BUF_LEN];
+ int ch, offset, len, in_tag, in_ssi_tag;
+
+ if (include_level > 10) {
+ mg_cry_internal(conn, "SSI #include level is too deep (%s)", path);
+ return;
+ }
+
+ in_tag = in_ssi_tag = len = offset = 0;
+
+ /* Read file, byte by byte, and look for SSI include tags */
+ while ((ch = mg_fgetc(filep, offset++)) != EOF) {
+
+ if (in_tag) {
+ /* We are in a tag, either SSI tag or html tag */
+
+ if (ch == '>') {
+ /* Tag is closing */
+ buf[len++] = '>';
+
+ if (in_ssi_tag) {
+ /* Handle SSI tag */
+ buf[len] = 0;
+
+ if ((len > 12) && !memcmp(buf + 5, "include", 7)) {
+ do_ssi_include(conn, path, buf + 12, include_level + 1);
+#if !defined(NO_POPEN)
+ } else if ((len > 9) && !memcmp(buf + 5, "exec", 4)) {
+ do_ssi_exec(conn, buf + 9);
+#endif /* !NO_POPEN */
+ } else {
+ mg_cry_internal(conn,
+ "%s: unknown SSI "
+ "command: \"%s\"",
+ path,
+ buf);
+ }
+ len = 0;
+ in_ssi_tag = in_tag = 0;
+
+ } else {
+ /* Not an SSI tag */
+ /* Flush buffer */
+ (void)mg_write(conn, buf, (size_t)len);
+ len = 0;
+ in_tag = 0;
+ }
+
+ } else {
+ /* Tag is still open */
+ buf[len++] = (char)(ch & 0xff);
+
+ if ((len == 5) && !memcmp(buf, "<!--#", 5)) {
+ /* All SSI tags start with <!--# */
+ in_ssi_tag = 1;
+ }
+
+ if ((len + 2) > (int)sizeof(buf)) {
+ /* Tag to long for buffer */
+ mg_cry_internal(conn, "%s: tag is too large", path);
+ return;
+ }
+ }
+
+ } else {
+
+ /* We are not in a tag yet. */
+ if (ch == '<') {
+ /* Tag is opening */
+ in_tag = 1;
+
+ if (len > 0) {
+ /* Flush current buffer.
+ * Buffer is filled with "len" bytes. */
+ (void)mg_write(conn, buf, (size_t)len);
+ }
+ /* Store the < */
+ len = 1;
+ buf[0] = '<';
+
+ } else {
+ /* No Tag */
+ /* Add data to buffer */
+ buf[len++] = (char)(ch & 0xff);
+ /* Flush if buffer is full */
+ if (len == (int)sizeof(buf)) {
+ mg_write(conn, buf, (size_t)len);
+ len = 0;
+ }
+ }
+ }
+ }
+
+ /* Send the rest of buffered data */
+ if (len > 0) {
+ mg_write(conn, buf, (size_t)len);
+ }
+}
+
+
+static void
+handle_ssi_file_request(struct mg_connection *conn,
+ const char *path,
+ struct mg_file *filep)
+{
+ char date[64];
+ time_t curtime = time(NULL);
+ const char *cors_orig_cfg;
+ const char *cors1, *cors2, *cors3;
+
+ if ((conn == NULL) || (path == NULL) || (filep == NULL)) {
+ return;
+ }
+
+ cors_orig_cfg = conn->dom_ctx->config[ACCESS_CONTROL_ALLOW_ORIGIN];
+ if (cors_orig_cfg && *cors_orig_cfg && mg_get_header(conn, "Origin")) {
+ /* Cross-origin resource sharing (CORS). */
+ cors1 = "Access-Control-Allow-Origin: ";
+ cors2 = cors_orig_cfg;
+ cors3 = "\r\n";
+ } else {
+ cors1 = cors2 = cors3 = "";
+ }
+
+ if (!mg_fopen(conn, path, MG_FOPEN_MODE_READ, filep)) {
+ /* File exists (precondition for calling this function),
+ * but can not be opened by the server. */
+ mg_send_http_error(conn,
+ 500,
+ "Error: Cannot read file\nfopen(%s): %s",
+ path,
+ strerror(ERRNO));
+ } else {
+ conn->must_close = 1;
+ gmt_time_string(date, sizeof(date), &curtime);
+ fclose_on_exec(&filep->access, conn);
+ mg_printf(conn, "HTTP/1.1 200 OK\r\n");
+ send_no_cache_header(conn);
+ send_additional_header(conn);
+ mg_printf(conn,
+ "%s%s%s"
+ "Date: %s\r\n"
+ "Content-Type: text/html\r\n"
+ "Connection: %s\r\n\r\n",
+ cors1,
+ cors2,
+ cors3,
+ date,
+ suggest_connection_header(conn));
+ send_ssi_file(conn, path, filep, 0);
+ (void)mg_fclose(&filep->access); /* Ignore errors for readonly files */
+ }
+}
+
+
+#if !defined(NO_FILES)
+static void
+send_options(struct mg_connection *conn)
+{
+ char date[64];
+ time_t curtime = time(NULL);
+
+ if (!conn) {
+ return;
+ }
+
+ conn->status_code = 200;
+ conn->must_close = 1;
+ gmt_time_string(date, sizeof(date), &curtime);
+
+ /* We do not set a "Cache-Control" header here, but leave the default.
+ * Since browsers do not send an OPTIONS request, we can not test the
+ * effect anyway. */
+ mg_printf(conn,
+ "HTTP/1.1 200 OK\r\n"
+ "Date: %s\r\n"
+ "Connection: %s\r\n"
+ "Allow: GET, POST, HEAD, CONNECT, PUT, DELETE, OPTIONS, "
+ "PROPFIND, MKCOL\r\n"
+ "DAV: 1\r\n",
+ date,
+ suggest_connection_header(conn));
+ send_additional_header(conn);
+ mg_printf(conn, "\r\n");
+}
+
+
+/* Writes PROPFIND properties for a collection element */
+static int
+print_props(struct mg_connection *conn,
+ const char *uri,
+ const char *name,
+ struct mg_file_stat *filep)
+{
+ size_t href_size, i, j;
+ int len;
+ char *href, mtime[64];
+
+ if ((conn == NULL) || (uri == NULL) || (name == NULL) || (filep == NULL)) {
+ return 0;
+ }
+ /* Estimate worst case size for encoding */
+ href_size = (strlen(uri) + strlen(name)) * 3 + 1;
+ href = (char *)mg_malloc(href_size);
+ if (href == NULL) {
+ return 0;
+ }
+ len = mg_url_encode(uri, href, href_size);
+ if (len >= 0) {
+ /* Append an extra string */
+ mg_url_encode(name, href + len, href_size - (size_t)len);
+ }
+ /* Directory separator should be preserved. */
+ for (i = j = 0; href[i]; j++) {
+ if (!strncmp(href + i, "%2f", 3)) {
+ href[j] = '/';
+ i += 3;
+ } else {
+ href[j] = href[i++];
+ }
+ }
+ href[j] = '\0';
+
+ gmt_time_string(mtime, sizeof(mtime), &filep->last_modified);
+ mg_printf(conn,
+ "<d:response>"
+ "<d:href>%s</d:href>"
+ "<d:propstat>"
+ "<d:prop>"
+ "<d:resourcetype>%s</d:resourcetype>"
+ "<d:getcontentlength>%" INT64_FMT "</d:getcontentlength>"
+ "<d:getlastmodified>%s</d:getlastmodified>"
+ "</d:prop>"
+ "<d:status>HTTP/1.1 200 OK</d:status>"
+ "</d:propstat>"
+ "</d:response>\n",
+ href,
+ filep->is_directory ? "<d:collection/>" : "",
+ filep->size,
+ mtime);
+ mg_free(href);
+ return 1;
+}
+
+
+static int
+print_dav_dir_entry(struct de *de, void *data)
+{
+ struct mg_connection *conn = (struct mg_connection *)data;
+ if (!de || !conn
+ || !print_props(
+ conn, conn->request_info.local_uri, de->file_name, &de->file)) {
+ return -1;
+ }
+ return 0;
+}
+
+
+static void
+handle_propfind(struct mg_connection *conn,
+ const char *path,
+ struct mg_file_stat *filep)
+{
+ const char *depth = mg_get_header(conn, "Depth");
+ char date[64];
+ time_t curtime = time(NULL);
+
+ gmt_time_string(date, sizeof(date), &curtime);
+
+ if (!conn || !path || !filep || !conn->dom_ctx) {
+ return;
+ }
+
+ conn->must_close = 1;
+ conn->status_code = 207;
+ mg_printf(conn,
+ "HTTP/1.1 207 Multi-Status\r\n"
+ "Date: %s\r\n",
+ date);
+ send_static_cache_header(conn);
+ send_additional_header(conn);
+ mg_printf(conn,
+ "Connection: %s\r\n"
+ "Content-Type: text/xml; charset=utf-8\r\n\r\n",
+ suggest_connection_header(conn));
+
+ mg_printf(conn,
+ "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
+ "<d:multistatus xmlns:d='DAV:'>\n");
+
+ /* Print properties for the requested resource itself */
+ print_props(conn, conn->request_info.local_uri, "", filep);
+
+ /* If it is a directory, print directory entries too if Depth is not 0
+ */
+ if (filep->is_directory
+ && !mg_strcasecmp(conn->dom_ctx->config[ENABLE_DIRECTORY_LISTING],
+ "yes")
+ && ((depth == NULL) || (strcmp(depth, "0") != 0))) {
+ scan_directory(conn, path, conn, &print_dav_dir_entry);
+ }
+
+ mg_printf(conn, "%s\n", "</d:multistatus>");
+}
+#endif
+
+void
+mg_lock_connection(struct mg_connection *conn)
+{
+ if (conn) {
+ (void)pthread_mutex_lock(&conn->mutex);
+ }
+}
+
+void
+mg_unlock_connection(struct mg_connection *conn)
+{
+ if (conn) {
+ (void)pthread_mutex_unlock(&conn->mutex);
+ }
+}
+
+void
+mg_lock_context(struct mg_context *ctx)
+{
+ if (ctx) {
+ (void)pthread_mutex_lock(&ctx->nonce_mutex);
+ }
+}
+
+void
+mg_unlock_context(struct mg_context *ctx)
+{
+ if (ctx) {
+ (void)pthread_mutex_unlock(&ctx->nonce_mutex);
+ }
+}
+
+
+#if defined(USE_LUA)
+#include "mod_lua.inl"
+#endif /* USE_LUA */
+
+#if defined(USE_DUKTAPE)
+#include "mod_duktape.inl"
+#endif /* USE_DUKTAPE */
+
+#if defined(USE_WEBSOCKET)
+
+#if !defined(NO_SSL_DL)
+#define SHA_API static
+/*
+SHA-1 in C
+By Steve Reid <sreid@sea-to-sky.net>
+100% Public Domain
+
+-----------------
+Modified 7/98
+By James H. Brown <jbrown@burgoyne.com>
+Still 100% Public Domain
+
+Corrected a problem which generated improper hash values on 16 bit machines
+Routine SHA1Update changed from
+ void SHA1Update(SHA_CTX* context, unsigned char* data, unsigned int
+len)
+to
+ void SHA1Update(SHA_CTX* context, unsigned char* data, unsigned
+long len)
+
+The 'len' parameter was declared an int which works fine on 32 bit machines.
+However, on 16 bit machines an int is too small for the shifts being done
+against
+it. This caused the hash function to generate incorrect values if len was
+greater than 8191 (8K - 1) due to the 'len << 3' on line 3 of SHA1Update().
+
+Since the file IO in main() reads 16K at a time, any file 8K or larger would
+be guaranteed to generate the wrong hash (e.g. Test Vector #3, a million
+"a"s).
+
+I also changed the declaration of variables i & j in SHA1Update to
+unsigned long from unsigned int for the same reason.
+
+These changes should make no difference to any 32 bit implementations since
+an
+int and a long are the same size in those environments.
+
+--
+I also corrected a few compiler warnings generated by Borland C.
+1. Added #include <process.h> for exit() prototype
+2. Removed unused variable 'j' in SHA1Final
+3. Changed exit(0) to return(0) at end of main.
+
+ALL changes I made can be located by searching for comments containing 'JHB'
+-----------------
+Modified 8/98
+By Steve Reid <sreid@sea-to-sky.net>
+Still 100% public domain
+
+1- Removed #include <process.h> and used return() instead of exit()
+2- Fixed overwriting of finalcount in SHA1Final() (discovered by Chris Hall)
+3- Changed email address from steve@edmweb.com to sreid@sea-to-sky.net
+
+-----------------
+Modified 4/01
+By Saul Kravitz <Saul.Kravitz@celera.com>
+Still 100% PD
+Modified to run on Compaq Alpha hardware.
+
+-----------------
+Modified 07/2002
+By Ralph Giles <giles@ghostscript.com>
+Still 100% public domain
+modified for use with stdint types, autoconf
+code cleanup, removed attribution comments
+switched SHA1Final() argument order for consistency
+use SHA1_ prefix for public api
+move public api to sha1.h
+*/
+
+/*
+11/2016 adapted for CivetWeb:
+ include sha1.h in sha1.c,
+ rename to sha1.inl
+ remove unused #ifdef sections
+ make endian independent
+ align buffer to 4 bytes
+ remove unused variable assignments
+*/
+
+/*
+Test Vectors (from FIPS PUB 180-1)
+"abc"
+ A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D
+"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"
+ 84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1
+A million repetitions of "a"
+ 34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F
+*/
+
+#include <stdint.h>
+#include <string.h>
+
+typedef struct {
+ uint32_t state[5];
+ uint32_t count[2];
+ uint8_t buffer[64];
+} SHA_CTX;
+
+#define SHA1_DIGEST_SIZE 20
+
+#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
+
+/* blk0() and blk() perform the initial expand. */
+/* I got the idea of expanding during the round function from SSLeay */
+
+
+typedef union {
+ uint8_t c[64];
+ uint32_t l[16];
+} CHAR64LONG16;
+
+
+static uint32_t
+blk0(CHAR64LONG16 *block, int i)
+{
+ static const uint32_t n = 1u;
+ if ((*((uint8_t *)(&n))) == 1) {
+ /* little endian / intel byte order */
+ block->l[i] = (rol(block->l[i], 24) & 0xFF00FF00)
+ | (rol(block->l[i], 8) & 0x00FF00FF);
+ }
+ return block->l[i];
+}
+
+#define blk(block, i) \
+ ((block)->l[(i)&15] = \
+ rol((block)->l[((i) + 13) & 15] ^ (block)->l[((i) + 8) & 15] \
+ ^ (block)->l[((i) + 2) & 15] ^ (block)->l[(i)&15], \
+ 1))
+
+/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */
+#define R0(v, w, x, y, z, i) \
+ z += ((w & (x ^ y)) ^ y) + blk0(block, i) + 0x5A827999 + rol(v, 5); \
+ w = rol(w, 30);
+#define R1(v, w, x, y, z, i) \
+ z += ((w & (x ^ y)) ^ y) + blk(block, i) + 0x5A827999 + rol(v, 5); \
+ w = rol(w, 30);
+#define R2(v, w, x, y, z, i) \
+ z += (w ^ x ^ y) + blk(block, i) + 0x6ED9EBA1 + rol(v, 5); \
+ w = rol(w, 30);
+#define R3(v, w, x, y, z, i) \
+ z += (((w | x) & y) | (w & x)) + blk(block, i) + 0x8F1BBCDC + rol(v, 5); \
+ w = rol(w, 30);
+#define R4(v, w, x, y, z, i) \
+ z += (w ^ x ^ y) + blk(block, i) + 0xCA62C1D6 + rol(v, 5); \
+ w = rol(w, 30);
+
+
+/* Hash a single 512-bit block. This is the core of the algorithm. */
+static void
+SHA1_Transform(uint32_t state[5], const uint8_t buffer[64])
+{
+ uint32_t a, b, c, d, e;
+
+ /* Must use an aligned, read/write buffer */
+ CHAR64LONG16 block[1];
+ memcpy(block, buffer, sizeof(block));
+
+ /* Copy context->state[] to working vars */
+ a = state[0];
+ b = state[1];
+ c = state[2];
+ d = state[3];
+ e = state[4];
+
+ /* 4 rounds of 20 operations each. Loop unrolled. */
+ R0(a, b, c, d, e, 0);
+ R0(e, a, b, c, d, 1);
+ R0(d, e, a, b, c, 2);
+ R0(c, d, e, a, b, 3);
+ R0(b, c, d, e, a, 4);
+ R0(a, b, c, d, e, 5);
+ R0(e, a, b, c, d, 6);
+ R0(d, e, a, b, c, 7);
+ R0(c, d, e, a, b, 8);
+ R0(b, c, d, e, a, 9);
+ R0(a, b, c, d, e, 10);
+ R0(e, a, b, c, d, 11);
+ R0(d, e, a, b, c, 12);
+ R0(c, d, e, a, b, 13);
+ R0(b, c, d, e, a, 14);
+ R0(a, b, c, d, e, 15);
+ R1(e, a, b, c, d, 16);
+ R1(d, e, a, b, c, 17);
+ R1(c, d, e, a, b, 18);
+ R1(b, c, d, e, a, 19);
+ R2(a, b, c, d, e, 20);
+ R2(e, a, b, c, d, 21);
+ R2(d, e, a, b, c, 22);
+ R2(c, d, e, a, b, 23);
+ R2(b, c, d, e, a, 24);
+ R2(a, b, c, d, e, 25);
+ R2(e, a, b, c, d, 26);
+ R2(d, e, a, b, c, 27);
+ R2(c, d, e, a, b, 28);
+ R2(b, c, d, e, a, 29);
+ R2(a, b, c, d, e, 30);
+ R2(e, a, b, c, d, 31);
+ R2(d, e, a, b, c, 32);
+ R2(c, d, e, a, b, 33);
+ R2(b, c, d, e, a, 34);
+ R2(a, b, c, d, e, 35);
+ R2(e, a, b, c, d, 36);
+ R2(d, e, a, b, c, 37);
+ R2(c, d, e, a, b, 38);
+ R2(b, c, d, e, a, 39);
+ R3(a, b, c, d, e, 40);
+ R3(e, a, b, c, d, 41);
+ R3(d, e, a, b, c, 42);
+ R3(c, d, e, a, b, 43);
+ R3(b, c, d, e, a, 44);
+ R3(a, b, c, d, e, 45);
+ R3(e, a, b, c, d, 46);
+ R3(d, e, a, b, c, 47);
+ R3(c, d, e, a, b, 48);
+ R3(b, c, d, e, a, 49);
+ R3(a, b, c, d, e, 50);
+ R3(e, a, b, c, d, 51);
+ R3(d, e, a, b, c, 52);
+ R3(c, d, e, a, b, 53);
+ R3(b, c, d, e, a, 54);
+ R3(a, b, c, d, e, 55);
+ R3(e, a, b, c, d, 56);
+ R3(d, e, a, b, c, 57);
+ R3(c, d, e, a, b, 58);
+ R3(b, c, d, e, a, 59);
+ R4(a, b, c, d, e, 60);
+ R4(e, a, b, c, d, 61);
+ R4(d, e, a, b, c, 62);
+ R4(c, d, e, a, b, 63);
+ R4(b, c, d, e, a, 64);
+ R4(a, b, c, d, e, 65);
+ R4(e, a, b, c, d, 66);
+ R4(d, e, a, b, c, 67);
+ R4(c, d, e, a, b, 68);
+ R4(b, c, d, e, a, 69);
+ R4(a, b, c, d, e, 70);
+ R4(e, a, b, c, d, 71);
+ R4(d, e, a, b, c, 72);
+ R4(c, d, e, a, b, 73);
+ R4(b, c, d, e, a, 74);
+ R4(a, b, c, d, e, 75);
+ R4(e, a, b, c, d, 76);
+ R4(d, e, a, b, c, 77);
+ R4(c, d, e, a, b, 78);
+ R4(b, c, d, e, a, 79);
+
+ /* Add the working vars back into context.state[] */
+ state[0] += a;
+ state[1] += b;
+ state[2] += c;
+ state[3] += d;
+ state[4] += e;
+}
+
+
+/* SHA1Init - Initialize new context */
+SHA_API void
+SHA1_Init(SHA_CTX *context)
+{
+ /* SHA1 initialization constants */
+ context->state[0] = 0x67452301;
+ context->state[1] = 0xEFCDAB89;
+ context->state[2] = 0x98BADCFE;
+ context->state[3] = 0x10325476;
+ context->state[4] = 0xC3D2E1F0;
+ context->count[0] = context->count[1] = 0;
+}
+
+
+SHA_API void
+SHA1_Update(SHA_CTX *context, const uint8_t *data, const uint32_t len)
+{
+ uint32_t i, j;
+
+ j = context->count[0];
+ if ((context->count[0] += (len << 3)) < j) {
+ context->count[1]++;
+ }
+ context->count[1] += (len >> 29);
+ j = (j >> 3) & 63;
+ if ((j + len) > 63) {
+ i = 64 - j;
+ memcpy(&context->buffer[j], data, i);
+ SHA1_Transform(context->state, context->buffer);
+ for (; i + 63 < len; i += 64) {
+ SHA1_Transform(context->state, &data[i]);
+ }
+ j = 0;
+ } else {
+ i = 0;
+ }
+ memcpy(&context->buffer[j], &data[i], len - i);
+}
+
+
+/* Add padding and return the message digest. */
+SHA_API void
+SHA1_Final(unsigned char *digest, SHA_CTX *context)
+{
+ uint32_t i;
+ uint8_t finalcount[8];
+
+ for (i = 0; i < 8; i++) {
+ finalcount[i] =
+ (uint8_t)((context->count[(i >= 4 ? 0 : 1)] >> ((3 - (i & 3)) * 8))
+ & 255); /* Endian independent */
+ }
+ SHA1_Update(context, (uint8_t *)"\x80", 1);
+ while ((context->count[0] & 504) != 448) {
+ SHA1_Update(context, (uint8_t *)"\x00", 1);
+ }
+ SHA1_Update(context, finalcount, 8); /* Should cause a SHA1_Transform() */
+ for (i = 0; i < SHA1_DIGEST_SIZE; i++) {
+ digest[i] =
+ (uint8_t)((context->state[i >> 2] >> ((3 - (i & 3)) * 8)) & 255);
+ }
+
+ /* Wipe variables */
+ memset(context, '\0', sizeof(*context));
+}
+
+
+/* End of sha1.inl */
+#endif
+
+static int
+send_websocket_handshake(struct mg_connection *conn, const char *websock_key)
+{
+ static const char *magic = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
+ char buf[100], sha[20], b64_sha[sizeof(sha) * 2];
+ SHA_CTX sha_ctx;
+ int truncated;
+
+ /* Calculate Sec-WebSocket-Accept reply from Sec-WebSocket-Key. */
+ mg_snprintf(conn, &truncated, buf, sizeof(buf), "%s%s", websock_key, magic);
+ if (truncated) {
+ conn->must_close = 1;
+ return 0;
+ }
+
+ DEBUG_TRACE("%s", "Send websocket handshake");
+
+ SHA1_Init(&sha_ctx);
+ SHA1_Update(&sha_ctx, (unsigned char *)buf, (uint32_t)strlen(buf));
+ SHA1_Final((unsigned char *)sha, &sha_ctx);
+ base64_encode((unsigned char *)sha, sizeof(sha), b64_sha);
+ mg_printf(conn,
+ "HTTP/1.1 101 Switching Protocols\r\n"
+ "Upgrade: websocket\r\n"
+ "Connection: Upgrade\r\n"
+ "Sec-WebSocket-Accept: %s\r\n",
+ b64_sha);
+ if (conn->request_info.acceptedWebSocketSubprotocol) {
+ mg_printf(conn,
+ "Sec-WebSocket-Protocol: %s\r\n\r\n",
+ conn->request_info.acceptedWebSocketSubprotocol);
+ } else {
+ mg_printf(conn, "%s", "\r\n");
+ }
+
+ return 1;
+}
+
+
+#if !defined(MG_MAX_UNANSWERED_PING)
+/* Configuration of the maximum number of websocket PINGs that might
+ * stay unanswered before the connection is considered broken.
+ * Note: The name of this define may still change (until it is
+ * defined as a compile parameter in a documentation).
+ */
+#define MG_MAX_UNANSWERED_PING (5)
+#endif
+
+
+static void
+read_websocket(struct mg_connection *conn,
+ mg_websocket_data_handler ws_data_handler,
+ void *callback_data)
+{
+ /* Pointer to the beginning of the portion of the incoming websocket
+ * message queue.
+ * The original websocket upgrade request is never removed, so the queue
+ * begins after it. */
+ unsigned char *buf = (unsigned char *)conn->buf + conn->request_len;
+ int n, error, exit_by_callback;
+ int ret;
+
+ /* body_len is the length of the entire queue in bytes
+ * len is the length of the current message
+ * data_len is the length of the current message's data payload
+ * header_len is the length of the current message's header */
+ size_t i, len, mask_len = 0, header_len, body_len;
+ uint64_t data_len = 0;
+
+ /* "The masking key is a 32-bit value chosen at random by the client."
+ * http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-17#section-5
+ */
+ unsigned char mask[4];
+
+ /* data points to the place where the message is stored when passed to
+ * the websocket_data callback. This is either mem on the stack, or a
+ * dynamically allocated buffer if it is too large. */
+ unsigned char mem[4096];
+ unsigned char mop; /* mask flag and opcode */
+
+
+ /* Variables used for connection monitoring */
+ double timeout = -1.0;
+ int enable_ping_pong = 0;
+ int ping_count = 0;
+
+ if (conn->dom_ctx->config[ENABLE_WEBSOCKET_PING_PONG]) {
+ enable_ping_pong =
+ !mg_strcasecmp(conn->dom_ctx->config[ENABLE_WEBSOCKET_PING_PONG],
+ "yes");
+ }
+
+ if (conn->dom_ctx->config[WEBSOCKET_TIMEOUT]) {
+ timeout = atoi(conn->dom_ctx->config[WEBSOCKET_TIMEOUT]) / 1000.0;
+ }
+ if ((timeout <= 0.0) && (conn->dom_ctx->config[REQUEST_TIMEOUT])) {
+ timeout = atoi(conn->dom_ctx->config[REQUEST_TIMEOUT]) / 1000.0;
+ }
+
+ /* Enter data processing loop */
+ DEBUG_TRACE("Websocket connection %s:%u start data processing loop",
+ conn->request_info.remote_addr,
+ conn->request_info.remote_port);
+ conn->in_websocket_handling = 1;
+ mg_set_thread_name("wsock");
+
+ /* Loop continuously, reading messages from the socket, invoking the
+ * callback, and waiting repeatedly until an error occurs. */
+ while (!conn->phys_ctx->stop_flag && !conn->must_close) {
+ header_len = 0;
+ DEBUG_ASSERT(conn->data_len >= conn->request_len);
+ if ((body_len = (size_t)(conn->data_len - conn->request_len)) >= 2) {
+ len = buf[1] & 127;
+ mask_len = (buf[1] & 128) ? 4 : 0;
+ if ((len < 126) && (body_len >= mask_len)) {
+ /* inline 7-bit length field */
+ data_len = len;
+ header_len = 2 + mask_len;
+ } else if ((len == 126) && (body_len >= (4 + mask_len))) {
+ /* 16-bit length field */
+ header_len = 4 + mask_len;
+ data_len = ((((size_t)buf[2]) << 8) + buf[3]);
+ } else if (body_len >= (10 + mask_len)) {
+ /* 64-bit length field */
+ uint32_t l1, l2;
+ memcpy(&l1, &buf[2], 4); /* Use memcpy for alignment */
+ memcpy(&l2, &buf[6], 4);
+ header_len = 10 + mask_len;
+ data_len = (((uint64_t)ntohl(l1)) << 32) + ntohl(l2);
+
+ if (data_len > (uint64_t)0x7FFF0000ul) {
+ /* no can do */
+ mg_cry_internal(
+ conn,
+ "%s",
+ "websocket out of memory; closing connection");
+ break;
+ }
+ }
+ }
+
+ if ((header_len > 0) && (body_len >= header_len)) {
+ /* Allocate space to hold websocket payload */
+ unsigned char *data = mem;
+
+ if ((size_t)data_len > (size_t)sizeof(mem)) {
+ data = (unsigned char *)mg_malloc_ctx((size_t)data_len,
+ conn->phys_ctx);
+ if (data == NULL) {
+ /* Allocation failed, exit the loop and then close the
+ * connection */
+ mg_cry_internal(
+ conn,
+ "%s",
+ "websocket out of memory; closing connection");
+ break;
+ }
+ }
+
+ /* Copy the mask before we shift the queue and destroy it */
+ if (mask_len > 0) {
+ memcpy(mask, buf + header_len - mask_len, sizeof(mask));
+ } else {
+ memset(mask, 0, sizeof(mask));
+ }
+
+ /* Read frame payload from the first message in the queue into
+ * data and advance the queue by moving the memory in place. */
+ DEBUG_ASSERT(body_len >= header_len);
+ if (data_len + (uint64_t)header_len > (uint64_t)body_len) {
+ mop = buf[0]; /* current mask and opcode */
+ /* Overflow case */
+ len = body_len - header_len;
+ memcpy(data, buf + header_len, len);
+ error = 0;
+ while ((uint64_t)len < data_len) {
+ n = pull_inner(NULL,
+ conn,
+ (char *)(data + len),
+ (int)(data_len - len),
+ timeout);
+ if (n <= -2) {
+ error = 1;
+ break;
+ } else if (n > 0) {
+ len += (size_t)n;
+ } else {
+ /* Timeout: should retry */
+ /* TODO: retry condition */
+ }
+ }
+ if (error) {
+ mg_cry_internal(
+ conn,
+ "%s",
+ "Websocket pull failed; closing connection");
+ if (data != mem) {
+ mg_free(data);
+ }
+ break;
+ }
+
+ conn->data_len = conn->request_len;
+
+ } else {
+
+ mop = buf[0]; /* current mask and opcode, overwritten by
+ * memmove() */
+
+ /* Length of the message being read at the front of the
+ * queue. Cast to 31 bit is OK, since we limited
+ * data_len before. */
+ len = (size_t)data_len + header_len;
+
+ /* Copy the data payload into the data pointer for the
+ * callback. Cast to 31 bit is OK, since we
+ * limited data_len */
+ memcpy(data, buf + header_len, (size_t)data_len);
+
+ /* Move the queue forward len bytes */
+ memmove(buf, buf + len, body_len - len);
+
+ /* Mark the queue as advanced */
+ conn->data_len -= (int)len;
+ }
+
+ /* Apply mask if necessary */
+ if (mask_len > 0) {
+ for (i = 0; i < (size_t)data_len; i++) {
+ data[i] ^= mask[i & 3];
+ }
+ }
+
+ exit_by_callback = 0;
+ if (enable_ping_pong && ((mop & 0xF) == MG_WEBSOCKET_OPCODE_PONG)) {
+ /* filter PONG messages */
+ DEBUG_TRACE("PONG from %s:%u",
+ conn->request_info.remote_addr,
+ conn->request_info.remote_port);
+ /* No unanwered PINGs left */
+ ping_count = 0;
+ } else if (enable_ping_pong
+ && ((mop & 0xF) == MG_WEBSOCKET_OPCODE_PING)) {
+ /* reply PING messages */
+ DEBUG_TRACE("Reply PING from %s:%u",
+ conn->request_info.remote_addr,
+ conn->request_info.remote_port);
+ ret = mg_websocket_write(conn,
+ MG_WEBSOCKET_OPCODE_PONG,
+ (char *)data,
+ (size_t)data_len);
+ if (ret <= 0) {
+ /* Error: send failed */
+ DEBUG_TRACE("Reply PONG failed (%i)", ret);
+ break;
+ }
+
+
+ } else {
+ /* Exit the loop if callback signals to exit (server side),
+ * or "connection close" opcode received (client side). */
+ if ((ws_data_handler != NULL)
+ && !ws_data_handler(conn,
+ mop,
+ (char *)data,
+ (size_t)data_len,
+ callback_data)) {
+ exit_by_callback = 1;
+ }
+ }
+
+ /* It a buffer has been allocated, free it again */
+ if (data != mem) {
+ mg_free(data);
+ }
+
+ if (exit_by_callback) {
+ DEBUG_TRACE("Callback requests to close connection from %s:%u",
+ conn->request_info.remote_addr,
+ conn->request_info.remote_port);
+ break;
+ }
+ if ((mop & 0xf) == MG_WEBSOCKET_OPCODE_CONNECTION_CLOSE) {
+ /* Opcode == 8, connection close */
+ DEBUG_TRACE("Message requests to close connection from %s:%u",
+ conn->request_info.remote_addr,
+ conn->request_info.remote_port);
+ break;
+ }
+
+ /* Not breaking the loop, process next websocket frame. */
+ } else {
+ /* Read from the socket into the next available location in the
+ * message queue. */
+ n = pull_inner(NULL,
+ conn,
+ conn->buf + conn->data_len,
+ conn->buf_size - conn->data_len,
+ timeout);
+ if (n <= -2) {
+ /* Error, no bytes read */
+ DEBUG_TRACE("PULL from %s:%u failed",
+ conn->request_info.remote_addr,
+ conn->request_info.remote_port);
+ break;
+ }
+ if (n > 0) {
+ conn->data_len += n;
+ /* Reset open PING count */
+ ping_count = 0;
+ } else {
+ if (!conn->phys_ctx->stop_flag && !conn->must_close) {
+ if (ping_count > MG_MAX_UNANSWERED_PING) {
+ /* Stop sending PING */
+ DEBUG_TRACE("Too many (%i) unanswered ping from %s:%u "
+ "- closing connection",
+ ping_count,
+ conn->request_info.remote_addr,
+ conn->request_info.remote_port);
+ break;
+ }
+ if (enable_ping_pong) {
+ /* Send Websocket PING message */
+ DEBUG_TRACE("PING to %s:%u",
+ conn->request_info.remote_addr,
+ conn->request_info.remote_port);
+ ret = mg_websocket_write(conn,
+ MG_WEBSOCKET_OPCODE_PING,
+ NULL,
+ 0);
+
+ if (ret <= 0) {
+ /* Error: send failed */
+ DEBUG_TRACE("Send PING failed (%i)", ret);
+ break;
+ }
+ ping_count++;
+ }
+ }
+ /* Timeout: should retry */
+ /* TODO: get timeout def */
+ }
+ }
+ }
+
+ /* Leave data processing loop */
+ mg_set_thread_name("worker");
+ conn->in_websocket_handling = 0;
+ DEBUG_TRACE("Websocket connection %s:%u left data processing loop",
+ conn->request_info.remote_addr,
+ conn->request_info.remote_port);
+}
+
+
+static int
+mg_websocket_write_exec(struct mg_connection *conn,
+ int opcode,
+ const char *data,
+ size_t dataLen,
+ uint32_t masking_key)
+{
+ unsigned char header[14];
+ size_t headerLen;
+ int retval;
+
+#if defined(GCC_DIAGNOSTIC)
+/* Disable spurious conversion warning for GCC */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wconversion"
+#endif
+
+ header[0] = 0x80u | (unsigned char)((unsigned)opcode & 0xf);
+
+#if defined(GCC_DIAGNOSTIC)
+#pragma GCC diagnostic pop
+#endif
+
+ /* Frame format: http://tools.ietf.org/html/rfc6455#section-5.2 */
+ if (dataLen < 126) {
+ /* inline 7-bit length field */
+ header[1] = (unsigned char)dataLen;
+ headerLen = 2;
+ } else if (dataLen <= 0xFFFF) {
+ /* 16-bit length field */
+ uint16_t len = htons((uint16_t)dataLen);
+ header[1] = 126;
+ memcpy(header + 2, &len, 2);
+ headerLen = 4;
+ } else {
+ /* 64-bit length field */
+ uint32_t len1 = htonl((uint32_t)((uint64_t)dataLen >> 32));
+ uint32_t len2 = htonl((uint32_t)(dataLen & 0xFFFFFFFFu));
+ header[1] = 127;
+ memcpy(header + 2, &len1, 4);
+ memcpy(header + 6, &len2, 4);
+ headerLen = 10;
+ }
+
+ if (masking_key) {
+ /* add mask */
+ header[1] |= 0x80;
+ memcpy(header + headerLen, &masking_key, 4);
+ headerLen += 4;
+ }
+
+ /* Note that POSIX/Winsock's send() is threadsafe
+ * http://stackoverflow.com/questions/1981372/are-parallel-calls-to-send-recv-on-the-same-socket-valid
+ * but mongoose's mg_printf/mg_write is not (because of the loop in
+ * push(), although that is only a problem if the packet is large or
+ * outgoing buffer is full). */
+
+ /* TODO: Check if this lock should be moved to user land.
+ * Currently the server sets this lock for websockets, but
+ * not for any other connection. It must be set for every
+ * conn read/written by more than one thread, no matter if
+ * it is a websocket or regular connection. */
+ (void)mg_lock_connection(conn);
+
+ retval = mg_write(conn, header, headerLen);
+ if (retval != (int)headerLen) {
+ /* Did not send complete header */
+ retval = -1;
+ } else {
+ if (dataLen > 0) {
+ retval = mg_write(conn, data, dataLen);
+ }
+ /* if dataLen == 0, the header length (2) is returned */
+ }
+
+ /* TODO: Remove this unlock as well, when lock is removed. */
+ mg_unlock_connection(conn);
+
+ return retval;
+}
+
+int
+mg_websocket_write(struct mg_connection *conn,
+ int opcode,
+ const char *data,
+ size_t dataLen)
+{
+ return mg_websocket_write_exec(conn, opcode, data, dataLen, 0);
+}
+
+
+static void
+mask_data(const char *in, size_t in_len, uint32_t masking_key, char *out)
+{
+ size_t i = 0;
+
+ i = 0;
+ if ((in_len > 3) && ((ptrdiff_t)in % 4) == 0) {
+ /* Convert in 32 bit words, if data is 4 byte aligned */
+ while (i < (in_len - 3)) {
+ *(uint32_t *)(void *)(out + i) =
+ *(uint32_t *)(void *)(in + i) ^ masking_key;
+ i += 4;
+ }
+ }
+ if (i != in_len) {
+ /* convert 1-3 remaining bytes if ((dataLen % 4) != 0)*/
+ while (i < in_len) {
+ *(uint8_t *)(void *)(out + i) =
+ *(uint8_t *)(void *)(in + i)
+ ^ *(((uint8_t *)&masking_key) + (i % 4));
+ i++;
+ }
+ }
+}
+
+
+int
+mg_websocket_client_write(struct mg_connection *conn,
+ int opcode,
+ const char *data,
+ size_t dataLen)
+{
+ int retval = -1;
+ char *masked_data =
+ (char *)mg_malloc_ctx(((dataLen + 7) / 4) * 4, conn->phys_ctx);
+ uint32_t masking_key = 0;
+
+ if (masked_data == NULL) {
+ /* Return -1 in an error case */
+ mg_cry_internal(conn,
+ "%s",
+ "Cannot allocate buffer for masked websocket response: "
+ "Out of memory");
+ return -1;
+ }
+
+ do {
+ /* Get a masking key - but not 0 */
+ masking_key = (uint32_t)get_random();
+ } while (masking_key == 0);
+
+ mask_data(data, dataLen, masking_key, masked_data);
+
+ retval = mg_websocket_write_exec(
+ conn, opcode, masked_data, dataLen, masking_key);
+ mg_free(masked_data);
+
+ return retval;
+}
+
+
+static void
+handle_websocket_request(struct mg_connection *conn,
+ const char *path,
+ int is_callback_resource,
+ struct mg_websocket_subprotocols *subprotocols,
+ mg_websocket_connect_handler ws_connect_handler,
+ mg_websocket_ready_handler ws_ready_handler,
+ mg_websocket_data_handler ws_data_handler,
+ mg_websocket_close_handler ws_close_handler,
+ void *cbData)
+{
+ const char *websock_key = mg_get_header(conn, "Sec-WebSocket-Key");
+ const char *version = mg_get_header(conn, "Sec-WebSocket-Version");
+ ptrdiff_t lua_websock = 0;
+
+#if !defined(USE_LUA)
+ (void)path;
+#endif
+
+ /* Step 1: Check websocket protocol version. */
+ /* Step 1.1: Check Sec-WebSocket-Key. */
+ if (!websock_key) {
+ /* The RFC standard version (https://tools.ietf.org/html/rfc6455)
+ * requires a Sec-WebSocket-Key header.
+ */
+ /* It could be the hixie draft version
+ * (http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol-76).
+ */
+ const char *key1 = mg_get_header(conn, "Sec-WebSocket-Key1");
+ const char *key2 = mg_get_header(conn, "Sec-WebSocket-Key2");
+ char key3[8];
+
+ if ((key1 != NULL) && (key2 != NULL)) {
+ /* This version uses 8 byte body data in a GET request */
+ conn->content_len = 8;
+ if (8 == mg_read(conn, key3, 8)) {
+ /* This is the hixie version */
+ mg_send_http_error(conn,
+ 426,
+ "%s",
+ "Protocol upgrade to RFC 6455 required");
+ return;
+ }
+ }
+ /* This is an unknown version */
+ mg_send_http_error(conn, 400, "%s", "Malformed websocket request");
+ return;
+ }
+
+ /* Step 1.2: Check websocket protocol version. */
+ /* The RFC version (https://tools.ietf.org/html/rfc6455) is 13. */
+ if ((version == NULL) || (strcmp(version, "13") != 0)) {
+ /* Reject wrong versions */
+ mg_send_http_error(conn, 426, "%s", "Protocol upgrade required");
+ return;
+ }
+
+ /* Step 1.3: Could check for "Host", but we do not really nead this
+ * value for anything, so just ignore it. */
+
+ /* Step 2: If a callback is responsible, call it. */
+ if (is_callback_resource) {
+ /* Step 2.1 check and select subprotocol */
+ const char *protocols[64]; // max 64 headers
+ int nbSubprotocolHeader = get_req_headers(&conn->request_info,
+ "Sec-WebSocket-Protocol",
+ protocols,
+ 64);
+ if ((nbSubprotocolHeader > 0) && subprotocols) {
+ int cnt = 0;
+ int idx;
+ unsigned long len;
+ const char *sep, *curSubProtocol,
+ *acceptedWebSocketSubprotocol = NULL;
+
+
+ /* look for matching subprotocol */
+ do {
+ const char *protocol = protocols[cnt];
+
+ do {
+ sep = strchr(protocol, ',');
+ curSubProtocol = protocol;
+ len = sep ? (unsigned long)(sep - protocol)
+ : (unsigned long)strlen(protocol);
+ while (sep && isspace((unsigned char)*++sep))
+ ; // ignore leading whitespaces
+ protocol = sep;
+
+
+ for (idx = 0; idx < subprotocols->nb_subprotocols; idx++) {
+ if ((strlen(subprotocols->subprotocols[idx]) == len)
+ && (strncmp(curSubProtocol,
+ subprotocols->subprotocols[idx],
+ len)
+ == 0)) {
+ acceptedWebSocketSubprotocol =
+ subprotocols->subprotocols[idx];
+ break;
+ }
+ }
+ } while (sep && !acceptedWebSocketSubprotocol);
+ } while (++cnt < nbSubprotocolHeader
+ && !acceptedWebSocketSubprotocol);
+
+ conn->request_info.acceptedWebSocketSubprotocol =
+ acceptedWebSocketSubprotocol;
+
+ } else if (nbSubprotocolHeader > 0) {
+ /* keep legacy behavior */
+ const char *protocol = protocols[0];
+
+ /* The protocol is a comma separated list of names. */
+ /* The server must only return one value from this list. */
+ /* First check if it is a list or just a single value. */
+ const char *sep = strrchr(protocol, ',');
+ if (sep == NULL) {
+ /* Just a single protocol -> accept it. */
+ conn->request_info.acceptedWebSocketSubprotocol = protocol;
+ } else {
+ /* Multiple protocols -> accept the last one. */
+ /* This is just a quick fix if the client offers multiple
+ * protocols. The handler should have a list of accepted
+ * protocols on his own
+ * and use it to select one protocol among those the client
+ * has
+ * offered.
+ */
+ while (isspace((unsigned char)*++sep)) {
+ ; /* ignore leading whitespaces */
+ }
+ conn->request_info.acceptedWebSocketSubprotocol = sep;
+ }
+ }
+
+ if ((ws_connect_handler != NULL)
+ && (ws_connect_handler(conn, cbData) != 0)) {
+ /* C callback has returned non-zero, do not proceed with
+ * handshake.
+ */
+ /* Note that C callbacks are no longer called when Lua is
+ * responsible, so C can no longer filter callbacks for Lua. */
+ return;
+ }
+ }
+
+#if defined(USE_LUA)
+ /* Step 3: No callback. Check if Lua is responsible. */
+ else {
+ /* Step 3.1: Check if Lua is responsible. */
+ if (conn->dom_ctx->config[LUA_WEBSOCKET_EXTENSIONS]) {
+ lua_websock = match_prefix(
+ conn->dom_ctx->config[LUA_WEBSOCKET_EXTENSIONS],
+ strlen(conn->dom_ctx->config[LUA_WEBSOCKET_EXTENSIONS]),
+ path);
+ }
+
+ if (lua_websock) {
+ /* Step 3.2: Lua is responsible: call it. */
+ conn->lua_websocket_state = lua_websocket_new(path, conn);
+ if (!conn->lua_websocket_state) {
+ /* Lua rejected the new client */
+ return;
+ }
+ }
+ }
+#endif
+
+ /* Step 4: Check if there is a responsible websocket handler. */
+ if (!is_callback_resource && !lua_websock) {
+ /* There is no callback, and Lua is not responsible either. */
+ /* Reply with a 404 Not Found. We are still at a standard
+ * HTTP request here, before the websocket handshake, so
+ * we can still send standard HTTP error replies. */
+ mg_send_http_error(conn, 404, "%s", "Not found");
+ return;
+ }
+
+ /* Step 5: The websocket connection has been accepted */
+ if (!send_websocket_handshake(conn, websock_key)) {
+ mg_send_http_error(conn, 500, "%s", "Websocket handshake failed");
+ return;
+ }
+
+ /* Step 6: Call the ready handler */
+ if (is_callback_resource) {
+ if (ws_ready_handler != NULL) {
+ ws_ready_handler(conn, cbData);
+ }
+#if defined(USE_LUA)
+ } else if (lua_websock) {
+ if (!lua_websocket_ready(conn, conn->lua_websocket_state)) {
+ /* the ready handler returned false */
+ return;
+ }
+#endif
+ }
+
+ /* Step 7: Enter the read loop */
+ if (is_callback_resource) {
+ read_websocket(conn, ws_data_handler, cbData);
+#if defined(USE_LUA)
+ } else if (lua_websock) {
+ read_websocket(conn, lua_websocket_data, conn->lua_websocket_state);
+#endif
+ }
+
+ /* Step 8: Call the close handler */
+ if (ws_close_handler) {
+ ws_close_handler(conn, cbData);
+ }
+}
+
+
+static int
+is_websocket_protocol(const struct mg_connection *conn)
+{
+ const char *upgrade, *connection;
+
+ /* A websocket protocoll has the following HTTP headers:
+ *
+ * Connection: Upgrade
+ * Upgrade: Websocket
+ */
+
+ upgrade = mg_get_header(conn, "Upgrade");
+ if (upgrade == NULL) {
+ return 0; /* fail early, don't waste time checking other header
+ * fields
+ */
+ }
+ if (!mg_strcasestr(upgrade, "websocket")) {
+ return 0;
+ }
+
+ connection = mg_get_header(conn, "Connection");
+ if (connection == NULL) {
+ return 0;
+ }
+ if (!mg_strcasestr(connection, "upgrade")) {
+ return 0;
+ }
+
+ /* The headers "Host", "Sec-WebSocket-Key", "Sec-WebSocket-Protocol" and
+ * "Sec-WebSocket-Version" are also required.
+ * Don't check them here, since even an unsupported websocket protocol
+ * request still IS a websocket request (in contrast to a standard HTTP
+ * request). It will fail later in handle_websocket_request.
+ */
+
+ return 1;
+}
+#endif /* !USE_WEBSOCKET */
+
+
+static int
+isbyte(int n)
+{
+ return (n >= 0) && (n <= 255);
+}
+
+
+static int
+parse_net(const char *spec, uint32_t *net, uint32_t *mask)
+{
+ int n, a, b, c, d, slash = 32, len = 0;
+
+ if (((sscanf(spec, "%d.%d.%d.%d/%d%n", &a, &b, &c, &d, &slash, &n) == 5)
+ || (sscanf(spec, "%d.%d.%d.%d%n", &a, &b, &c, &d, &n) == 4))
+ && isbyte(a) && isbyte(b) && isbyte(c) && isbyte(d) && (slash >= 0)
+ && (slash < 33)) {
+ len = n;
+ *net = ((uint32_t)a << 24) | ((uint32_t)b << 16) | ((uint32_t)c << 8)
+ | (uint32_t)d;
+ *mask = slash ? (0xffffffffU << (32 - slash)) : 0;
+ }
+
+ return len;
+}
+
+
+static int
+set_throttle(const char *spec, uint32_t remote_ip, const char *uri)
+{
+ int throttle = 0;
+ struct vec vec, val;
+ uint32_t net, mask;
+ char mult;
+ double v;
+
+ while ((spec = next_option(spec, &vec, &val)) != NULL) {
+ mult = ',';
+ if ((val.ptr == NULL) || (sscanf(val.ptr, "%lf%c", &v, &mult) < 1)
+ || (v < 0)
+ || ((lowercase(&mult) != 'k') && (lowercase(&mult) != 'm')
+ && (mult != ','))) {
+ continue;
+ }
+ v *= (lowercase(&mult) == 'k')
+ ? 1024
+ : ((lowercase(&mult) == 'm') ? 1048576 : 1);
+ if (vec.len == 1 && vec.ptr[0] == '*') {
+ throttle = (int)v;
+ } else if (parse_net(vec.ptr, &net, &mask) > 0) {
+ if ((remote_ip & mask) == net) {
+ throttle = (int)v;
+ }
+ } else if (match_prefix(vec.ptr, vec.len, uri) > 0) {
+ throttle = (int)v;
+ }
+ }
+
+ return throttle;
+}
+
+
+static uint32_t
+get_remote_ip(const struct mg_connection *conn)
+{
+ if (!conn) {
+ return 0;
+ }
+ return ntohl(*(const uint32_t *)&conn->client.rsa.sin.sin_addr);
+}
+
+
+/* The mg_upload function is superseeded by mg_handle_form_request. */
+/* Copyright (c) 2016-2018 the Civetweb developers
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+static int
+url_encoded_field_found(const struct mg_connection *conn,
+ const char *key,
+ size_t key_len,
+ const char *filename,
+ size_t filename_len,
+ char *path,
+ size_t path_len,
+ struct mg_form_data_handler *fdh)
+{
+ char key_dec[1024];
+ char filename_dec[1024];
+ int key_dec_len;
+ int filename_dec_len;
+ int ret;
+
+ key_dec_len =
+ mg_url_decode(key, (int)key_len, key_dec, (int)sizeof(key_dec), 1);
+
+ if (((size_t)key_dec_len >= (size_t)sizeof(key_dec)) || (key_dec_len < 0)) {
+ return MG_FORM_FIELD_STORAGE_SKIP;
+ }
+
+ if (filename) {
+ filename_dec_len = mg_url_decode(filename,
+ (int)filename_len,
+ filename_dec,
+ (int)sizeof(filename_dec),
+ 1);
+
+ if (((size_t)filename_dec_len >= (size_t)sizeof(filename_dec))
+ || (filename_dec_len < 0)) {
+ /* Log error message and skip this field. */
+ mg_cry_internal(conn, "%s: Cannot decode filename", __func__);
+ return MG_FORM_FIELD_STORAGE_SKIP;
+ }
+ } else {
+ filename_dec[0] = 0;
+ }
+
+ ret =
+ fdh->field_found(key_dec, filename_dec, path, path_len, fdh->user_data);
+
+ if ((ret & 0xF) == MG_FORM_FIELD_STORAGE_GET) {
+ if (fdh->field_get == NULL) {
+ mg_cry_internal(conn,
+ "%s: Function \"Get\" not available",
+ __func__);
+ return MG_FORM_FIELD_STORAGE_SKIP;
+ }
+ }
+ if ((ret & 0xF) == MG_FORM_FIELD_STORAGE_STORE) {
+ if (fdh->field_store == NULL) {
+ mg_cry_internal(conn,
+ "%s: Function \"Store\" not available",
+ __func__);
+ return MG_FORM_FIELD_STORAGE_SKIP;
+ }
+ }
+
+ return ret;
+}
+
+static int
+url_encoded_field_get(const struct mg_connection *conn,
+ const char *key,
+ size_t key_len,
+ const char *value,
+ size_t value_len,
+ struct mg_form_data_handler *fdh)
+{
+ char key_dec[1024];
+
+ char *value_dec = (char *)mg_malloc_ctx(value_len + 1, conn->phys_ctx);
+ int value_dec_len, ret;
+
+ if (!value_dec) {
+ /* Log error message and stop parsing the form data. */
+ mg_cry_internal(conn,
+ "%s: Not enough memory (required: %lu)",
+ __func__,
+ (unsigned long)(value_len + 1));
+ return MG_FORM_FIELD_STORAGE_ABORT;
+ }
+
+ mg_url_decode(key, (int)key_len, key_dec, (int)sizeof(key_dec), 1);
+
+ value_dec_len =
+ mg_url_decode(value, (int)value_len, value_dec, (int)value_len + 1, 1);
+
+ ret = fdh->field_get(key_dec,
+ value_dec,
+ (size_t)value_dec_len,
+ fdh->user_data);
+
+ mg_free(value_dec);
+
+ return ret;
+}
+
+static int
+unencoded_field_get(const struct mg_connection *conn,
+ const char *key,
+ size_t key_len,
+ const char *value,
+ size_t value_len,
+ struct mg_form_data_handler *fdh)
+{
+ char key_dec[1024];
+ (void)conn;
+
+ mg_url_decode(key, (int)key_len, key_dec, (int)sizeof(key_dec), 1);
+
+ return fdh->field_get(key_dec, value, value_len, fdh->user_data);
+}
+
+static int
+field_stored(const struct mg_connection *conn,
+ const char *path,
+ long long file_size,
+ struct mg_form_data_handler *fdh)
+{
+ /* Equivalent to "upload" callback of "mg_upload". */
+
+ (void)conn; /* we do not need mg_cry here, so conn is currently unused */
+
+ return fdh->field_store(path, file_size, fdh->user_data);
+}
+
+static const char *
+search_boundary(const char *buf,
+ size_t buf_len,
+ const char *boundary,
+ size_t boundary_len)
+{
+ /* We must do a binary search here, not a string search, since the buffer
+ * may contain '\x00' bytes, if binary data is transferred. */
+ int clen = (int)buf_len - (int)boundary_len - 4;
+ int i;
+
+ for (i = 0; i <= clen; i++) {
+ if (!memcmp(buf + i, "\r\n--", 4)) {
+ if (!memcmp(buf + i + 4, boundary, boundary_len)) {
+ return buf + i;
+ }
+ }
+ }
+ return NULL;
+}
+
+int
+mg_handle_form_request(struct mg_connection *conn,
+ struct mg_form_data_handler *fdh)
+{
+ const char *content_type;
+ char path[512];
+ char buf[MG_BUF_LEN]; /* Must not be smaller than ~900 */
+ int field_storage;
+ int buf_fill = 0;
+ int r;
+ int field_count = 0;
+ struct mg_file fstore = STRUCT_FILE_INITIALIZER;
+ int64_t file_size = 0; /* init here, to a avoid a false positive
+ "uninitialized variable used" warning */
+
+ int has_body_data =
+ (conn->request_info.content_length > 0) || (conn->is_chunked);
+
+ /* There are three ways to encode data from a HTML form:
+ * 1) method: GET (default)
+ * The form data is in the HTTP query string.
+ * 2) method: POST, enctype: "application/x-www-form-urlencoded"
+ * The form data is in the request body.
+ * The body is url encoded (the default encoding for POST).
+ * 3) method: POST, enctype: "multipart/form-data".
+ * The form data is in the request body of a multipart message.
+ * This is the typical way to handle file upload from a form.
+ */
+
+ if (!has_body_data) {
+ const char *data;
+
+ if (0 != strcmp(conn->request_info.request_method, "GET")) {
+ /* No body data, but not a GET request.
+ * This is not a valid form request. */
+ return -1;
+ }
+
+ /* GET request: form data is in the query string. */
+ /* The entire data has already been loaded, so there is no nead to
+ * call mg_read. We just need to split the query string into key-value
+ * pairs. */
+ data = conn->request_info.query_string;
+ if (!data) {
+ /* No query string. */
+ return -1;
+ }
+
+ /* Split data in a=1&b=xy&c=3&c=4 ... */
+ while (*data) {
+ const char *val = strchr(data, '=');
+ const char *next;
+ ptrdiff_t keylen, vallen;
+
+ if (!val) {
+ break;
+ }
+ keylen = val - data;
+
+ /* In every "field_found" callback we ask what to do with the
+ * data ("field_storage"). This could be:
+ * MG_FORM_FIELD_STORAGE_SKIP (0):
+ * ignore the value of this field
+ * MG_FORM_FIELD_STORAGE_GET (1):
+ * read the data and call the get callback function
+ * MG_FORM_FIELD_STORAGE_STORE (2):
+ * store the data in a file
+ * MG_FORM_FIELD_STORAGE_READ (3):
+ * let the user read the data (for parsing long data on the fly)
+ * MG_FORM_FIELD_STORAGE_ABORT (flag):
+ * stop parsing
+ */
+ memset(path, 0, sizeof(path));
+ field_count++;
+ field_storage = url_encoded_field_found(conn,
+ data,
+ (size_t)keylen,
+ NULL,
+ 0,
+ path,
+ sizeof(path) - 1,
+ fdh);
+
+ val++;
+ next = strchr(val, '&');
+ if (next) {
+ vallen = next - val;
+ next++;
+ } else {
+ vallen = (ptrdiff_t)strlen(val);
+ next = val + vallen;
+ }
+
+ if (field_storage == MG_FORM_FIELD_STORAGE_GET) {
+ /* Call callback */
+ r = url_encoded_field_get(
+ conn, data, (size_t)keylen, val, (size_t)vallen, fdh);
+ if (r == MG_FORM_FIELD_HANDLE_ABORT) {
+ /* Stop request handling */
+ break;
+ }
+ if (r == MG_FORM_FIELD_HANDLE_NEXT) {
+ /* Skip to next field */
+ field_storage = MG_FORM_FIELD_STORAGE_SKIP;
+ }
+ }
+ if (field_storage == MG_FORM_FIELD_STORAGE_STORE) {
+ /* Store the content to a file */
+ if (mg_fopen(conn, path, MG_FOPEN_MODE_WRITE, &fstore) == 0) {
+ fstore.access.fp = NULL;
+ }
+ file_size = 0;
+ if (fstore.access.fp != NULL) {
+ size_t n = (size_t)
+ fwrite(val, 1, (size_t)vallen, fstore.access.fp);
+ if ((n != (size_t)vallen) || (ferror(fstore.access.fp))) {
+ mg_cry_internal(conn,
+ "%s: Cannot write file %s",
+ __func__,
+ path);
+ (void)mg_fclose(&fstore.access);
+ remove_bad_file(conn, path);
+ }
+ file_size += (int64_t)n;
+
+ if (fstore.access.fp) {
+ r = mg_fclose(&fstore.access);
+ if (r == 0) {
+ /* stored successfully */
+ r = field_stored(conn, path, file_size, fdh);
+ if (r == MG_FORM_FIELD_HANDLE_ABORT) {
+ /* Stop request handling */
+ break;
+ }
+
+ } else {
+ mg_cry_internal(conn,
+ "%s: Error saving file %s",
+ __func__,
+ path);
+ remove_bad_file(conn, path);
+ }
+ fstore.access.fp = NULL;
+ }
+
+ } else {
+ mg_cry_internal(conn,
+ "%s: Cannot create file %s",
+ __func__,
+ path);
+ }
+ }
+
+ /* if (field_storage == MG_FORM_FIELD_STORAGE_READ) { */
+ /* The idea of "field_storage=read" is to let the API user read
+ * data chunk by chunk and to some data processing on the fly.
+ * This should avoid the need to store data in the server:
+ * It should neither be stored in memory, like
+ * "field_storage=get" does, nor in a file like
+ * "field_storage=store".
+ * However, for a "GET" request this does not make any much
+ * sense, since the data is already stored in memory, as it is
+ * part of the query string.
+ */
+ /* } */
+
+ if ((field_storage & MG_FORM_FIELD_STORAGE_ABORT)
+ == MG_FORM_FIELD_STORAGE_ABORT) {
+ /* Stop parsing the request */
+ break;
+ }
+
+ /* Proceed to next entry */
+ data = next;
+ }
+
+ return field_count;
+ }
+
+ content_type = mg_get_header(conn, "Content-Type");
+
+ if (!content_type
+ || !mg_strncasecmp(content_type,
+ "APPLICATION/X-WWW-FORM-URLENCODED",
+ 33)
+ || !mg_strncasecmp(content_type,
+ "APPLICATION/WWW-FORM-URLENCODED",
+ 31)) {
+ /* The form data is in the request body data, encoded in key/value
+ * pairs. */
+ int all_data_read = 0;
+
+ /* Read body data and split it in keys and values.
+ * The encoding is like in the "GET" case above: a=1&b&c=3&c=4.
+ * Here we use "POST", and read the data from the request body.
+ * The data read on the fly, so it is not required to buffer the
+ * entire request in memory before processing it. */
+ for (;;) {
+ const char *val;
+ const char *next;
+ ptrdiff_t keylen, vallen;
+ ptrdiff_t used;
+ int end_of_key_value_pair_found = 0;
+ int get_block;
+
+ if ((size_t)buf_fill < (sizeof(buf) - 1)) {
+
+ size_t to_read = sizeof(buf) - 1 - (size_t)buf_fill;
+ r = mg_read(conn, buf + (size_t)buf_fill, to_read);
+ if ((r < 0) || ((r == 0) && all_data_read)) {
+ /* read error */
+ return -1;
+ }
+ if (r == 0) {
+ /* TODO: Create a function to get "all_data_read" from
+ * the conn object. All data is read if the Content-Length
+ * has been reached, or if chunked encoding is used and
+ * the end marker has been read, or if the connection has
+ * been closed. */
+ all_data_read = (buf_fill == 0);
+ }
+ buf_fill += r;
+ buf[buf_fill] = 0;
+ if (buf_fill < 1) {
+ break;
+ }
+ }
+
+ val = strchr(buf, '=');
+
+ if (!val) {
+ break;
+ }
+ keylen = val - buf;
+ val++;
+
+ /* Call callback */
+ memset(path, 0, sizeof(path));
+ field_count++;
+ field_storage = url_encoded_field_found(conn,
+ buf,
+ (size_t)keylen,
+ NULL,
+ 0,
+ path,
+ sizeof(path) - 1,
+ fdh);
+
+ if ((field_storage & MG_FORM_FIELD_STORAGE_ABORT)
+ == MG_FORM_FIELD_STORAGE_ABORT) {
+ /* Stop parsing the request */
+ break;
+ }
+
+ if (field_storage == MG_FORM_FIELD_STORAGE_STORE) {
+ if (mg_fopen(conn, path, MG_FOPEN_MODE_WRITE, &fstore) == 0) {
+ fstore.access.fp = NULL;
+ }
+ file_size = 0;
+ if (!fstore.access.fp) {
+ mg_cry_internal(conn,
+ "%s: Cannot create file %s",
+ __func__,
+ path);
+ }
+ }
+
+ get_block = 0;
+ /* Loop to read values larger than sizeof(buf)-keylen-2 */
+ do {
+ next = strchr(val, '&');
+ if (next) {
+ vallen = next - val;
+ next++;
+ end_of_key_value_pair_found = 1;
+ } else {
+ vallen = (ptrdiff_t)strlen(val);
+ next = val + vallen;
+ end_of_key_value_pair_found = all_data_read;
+ }
+
+ if (field_storage == MG_FORM_FIELD_STORAGE_GET) {
+#if 0
+ if (!end_of_key_value_pair_found && !all_data_read) {
+ /* This callback will deliver partial contents */
+ }
+#endif
+
+ /* Call callback */
+ r = url_encoded_field_get(conn,
+ ((get_block > 0) ? NULL : buf),
+ ((get_block > 0)
+ ? 0
+ : (size_t)keylen),
+ val,
+ (size_t)vallen,
+ fdh);
+ get_block++;
+ if (r == MG_FORM_FIELD_HANDLE_ABORT) {
+ /* Stop request handling */
+ break;
+ }
+ if (r == MG_FORM_FIELD_HANDLE_NEXT) {
+ /* Skip to next field */
+ field_storage = MG_FORM_FIELD_STORAGE_SKIP;
+ }
+ }
+ if (fstore.access.fp) {
+ size_t n = (size_t)
+ fwrite(val, 1, (size_t)vallen, fstore.access.fp);
+ if ((n != (size_t)vallen) || (ferror(fstore.access.fp))) {
+ mg_cry_internal(conn,
+ "%s: Cannot write file %s",
+ __func__,
+ path);
+ mg_fclose(&fstore.access);
+ remove_bad_file(conn, path);
+ }
+ file_size += (int64_t)n;
+ }
+
+ if (!end_of_key_value_pair_found) {
+ used = next - buf;
+ memmove(buf,
+ buf + (size_t)used,
+ sizeof(buf) - (size_t)used);
+ next = buf;
+ buf_fill -= (int)used;
+ if ((size_t)buf_fill < (sizeof(buf) - 1)) {
+
+ size_t to_read = sizeof(buf) - 1 - (size_t)buf_fill;
+ r = mg_read(conn, buf + (size_t)buf_fill, to_read);
+ if ((r < 0) || ((r == 0) && all_data_read)) {
+ /* read error */
+ if (fstore.access.fp) {
+ mg_fclose(&fstore.access);
+ remove_bad_file(conn, path);
+ }
+ return -1;
+ }
+ if (r == 0) {
+ /* TODO: Create a function to get "all_data_read"
+ * from the conn object. All data is read if the
+ * Content-Length has been reached, or if chunked
+ * encoding is used and the end marker has been
+ * read, or if the connection has been closed. */
+ all_data_read = (buf_fill == 0);
+ }
+ buf_fill += r;
+ buf[buf_fill] = 0;
+ if (buf_fill < 1) {
+ break;
+ }
+ val = buf;
+ }
+ }
+
+ } while (!end_of_key_value_pair_found);
+
+ if (fstore.access.fp) {
+ r = mg_fclose(&fstore.access);
+ if (r == 0) {
+ /* stored successfully */
+ r = field_stored(conn, path, file_size, fdh);
+ if (r == MG_FORM_FIELD_HANDLE_ABORT) {
+ /* Stop request handling */
+ break;
+ }
+ } else {
+ mg_cry_internal(conn,
+ "%s: Error saving file %s",
+ __func__,
+ path);
+ remove_bad_file(conn, path);
+ }
+ fstore.access.fp = NULL;
+ }
+
+ if (all_data_read && (buf_fill == 0)) {
+ /* nothing more to process */
+ break;
+ }
+
+ /* Proceed to next entry */
+ used = next - buf;
+ memmove(buf, buf + (size_t)used, sizeof(buf) - (size_t)used);
+ buf_fill -= (int)used;
+ }
+
+ return field_count;
+ }
+
+ if (!mg_strncasecmp(content_type, "MULTIPART/FORM-DATA;", 20)) {
+ /* The form data is in the request body data, encoded as multipart
+ * content (see https://www.ietf.org/rfc/rfc1867.txt,
+ * https://www.ietf.org/rfc/rfc2388.txt). */
+ char *boundary;
+ size_t bl;
+ ptrdiff_t used;
+ struct mg_request_info part_header;
+ char *hbuf;
+ const char *content_disp, *hend, *fbeg, *fend, *nbeg, *nend;
+ const char *next;
+ unsigned part_no;
+ int all_data_read = 0;
+
+ memset(&part_header, 0, sizeof(part_header));
+
+ /* Skip all spaces between MULTIPART/FORM-DATA; and BOUNDARY= */
+ bl = 20;
+ while (content_type[bl] == ' ') {
+ bl++;
+ }
+
+ /* There has to be a BOUNDARY definition in the Content-Type header */
+ if (mg_strncasecmp(content_type + bl, "BOUNDARY=", 9)) {
+ /* Malformed request */
+ return -1;
+ }
+
+ /* Copy boundary string to variable "boundary" */
+ fbeg = content_type + bl + 9;
+ bl = strlen(fbeg);
+ boundary = (char *)mg_malloc(bl + 1);
+ if (!boundary) {
+ /* Out of memory */
+ mg_cry_internal(conn,
+ "%s: Cannot allocate memory for boundary [%lu]",
+ __func__,
+ (unsigned long)bl);
+ return -1;
+ }
+ memcpy(boundary, fbeg, bl);
+ boundary[bl] = 0;
+
+ /* RFC 2046 permits the boundary string to be quoted. */
+ /* If the boundary is quoted, trim the quotes */
+ if (boundary[0] == '"') {
+ hbuf = strchr(boundary + 1, '"');
+ if ((!hbuf) || (*hbuf != '"')) {
+ /* Malformed request */
+ mg_free(boundary);
+ return -1;
+ }
+ *hbuf = 0;
+ memmove(boundary, boundary + 1, bl);
+ bl = strlen(boundary);
+ }
+
+ /* Do some sanity checks for boundary lengths */
+ if (bl > 70) {
+ /* From RFC 2046:
+ * Boundary delimiters must not appear within the
+ * encapsulated material, and must be no longer
+ * than 70 characters, not counting the two
+ * leading hyphens.
+ */
+
+ /* The algorithm can not work if bl >= sizeof(buf), or if buf
+ * can not hold the multipart header plus the boundary.
+ * Requests with long boundaries are not RFC compliant, maybe they
+ * are intended attacks to interfere with this algorithm. */
+ mg_free(boundary);
+ return -1;
+ }
+ if (bl < 4) {
+ /* Sanity check: A boundary string of less than 4 bytes makes
+ * no sense either. */
+ mg_free(boundary);
+ return -1;
+ }
+
+ for (part_no = 0;; part_no++) {
+ size_t towrite, fnlen, n;
+ int get_block;
+ size_t to_read = sizeof(buf) - 1 - (size_t)buf_fill;
+
+ r = mg_read(conn, buf + (size_t)buf_fill, to_read);
+ if ((r < 0) || ((r == 0) && all_data_read)) {
+ /* read error */
+ mg_free(boundary);
+ return -1;
+ }
+ if (r == 0) {
+ all_data_read = (buf_fill == 0);
+ }
+
+ buf_fill += r;
+ buf[buf_fill] = 0;
+ if (buf_fill < 1) {
+ /* No data */
+ mg_free(boundary);
+ return -1;
+ }
+
+ if (part_no == 0) {
+ int d = 0;
+ while ((buf[d] != '-') && (d < buf_fill)) {
+ d++;
+ }
+ if ((d > 0) && (buf[d] == '-')) {
+ memmove(buf, buf + d, (unsigned)buf_fill - (unsigned)d);
+ buf_fill -= d;
+ buf[buf_fill] = 0;
+ }
+ }
+
+ if (buf[0] != '-' || buf[1] != '-') {
+ /* Malformed request */
+ mg_free(boundary);
+ return -1;
+ }
+ if (0 != strncmp(buf + 2, boundary, bl)) {
+ /* Malformed request */
+ mg_free(boundary);
+ return -1;
+ }
+ if (buf[bl + 2] != '\r' || buf[bl + 3] != '\n') {
+ /* Every part must end with \r\n, if there is another part.
+ * The end of the request has an extra -- */
+ if (((size_t)buf_fill != (size_t)(bl + 6))
+ || (strncmp(buf + bl + 2, "--\r\n", 4))) {
+ /* Malformed request */
+ mg_free(boundary);
+ return -1;
+ }
+ /* End of the request */
+ break;
+ }
+
+ /* Next, we need to get the part header: Read until \r\n\r\n */
+ hbuf = buf + bl + 4;
+ hend = strstr(hbuf, "\r\n\r\n");
+ if (!hend) {
+ /* Malformed request */
+ mg_free(boundary);
+ return -1;
+ }
+
+ part_header.num_headers =
+ parse_http_headers(&hbuf, part_header.http_headers);
+ if ((hend + 2) != hbuf) {
+ /* Malformed request */
+ mg_free(boundary);
+ return -1;
+ }
+
+ /* Skip \r\n\r\n */
+ hend += 4;
+
+ /* According to the RFC, every part has to have a header field like:
+ * Content-Disposition: form-data; name="..." */
+ content_disp = get_header(part_header.http_headers,
+ part_header.num_headers,
+ "Content-Disposition");
+ if (!content_disp) {
+ /* Malformed request */
+ mg_free(boundary);
+ return -1;
+ }
+
+ /* Get the mandatory name="..." part of the Content-Disposition
+ * header. */
+ nbeg = strstr(content_disp, "name=\"");
+ while ((nbeg != NULL) && (strcspn(nbeg - 1, ":,; \t") != 0)) {
+ /* It could be somethingname= instead of name= */
+ nbeg = strstr(nbeg + 1, "name=\"");
+ }
+
+ /* This line is not required, but otherwise some compilers
+ * generate spurious warnings. */
+ nend = nbeg;
+ /* And others complain, the result is unused. */
+ (void)nend;
+
+ /* If name=" is found, search for the closing " */
+ if (nbeg) {
+ nbeg += 6;
+ nend = strchr(nbeg, '\"');
+ if (!nend) {
+ /* Malformed request */
+ mg_free(boundary);
+ return -1;
+ }
+ } else {
+ /* name= without quotes is also allowed */
+ nbeg = strstr(content_disp, "name=");
+ while ((nbeg != NULL) && (strcspn(nbeg - 1, ":,; \t") != 0)) {
+ /* It could be somethingname= instead of name= */
+ nbeg = strstr(nbeg + 1, "name=");
+ }
+ if (!nbeg) {
+ /* Malformed request */
+ mg_free(boundary);
+ return -1;
+ }
+ nbeg += 5;
+
+ /* RFC 2616 Sec. 2.2 defines a list of allowed
+ * separators, but many of them make no sense
+ * here, e.g. various brackets or slashes.
+ * If they are used, probably someone is
+ * trying to attack with curious hand made
+ * requests. Only ; , space and tab seem to be
+ * reasonable here. Ignore everything else. */
+ nend = nbeg + strcspn(nbeg, ",; \t");
+ }
+
+ /* Get the optional filename="..." part of the Content-Disposition
+ * header. */
+ fbeg = strstr(content_disp, "filename=\"");
+ while ((fbeg != NULL) && (strcspn(fbeg - 1, ":,; \t") != 0)) {
+ /* It could be somethingfilename= instead of filename= */
+ fbeg = strstr(fbeg + 1, "filename=\"");
+ }
+
+ /* This line is not required, but otherwise some compilers
+ * generate spurious warnings. */
+ fend = fbeg;
+
+ /* If filename=" is found, search for the closing " */
+ if (fbeg) {
+ fbeg += 10;
+ fend = strchr(fbeg, '\"');
+
+ if (!fend) {
+ /* Malformed request (the filename field is optional, but if
+ * it exists, it needs to be terminated correctly). */
+ mg_free(boundary);
+ return -1;
+ }
+
+ /* TODO: check Content-Type */
+ /* Content-Type: application/octet-stream */
+ }
+ if (!fbeg) {
+ /* Try the same without quotes */
+ fbeg = strstr(content_disp, "filename=");
+ while ((fbeg != NULL) && (strcspn(fbeg - 1, ":,; \t") != 0)) {
+ /* It could be somethingfilename= instead of filename= */
+ fbeg = strstr(fbeg + 1, "filename=");
+ }
+ if (fbeg) {
+ fbeg += 9;
+ fend = fbeg + strcspn(fbeg, ",; \t");
+ }
+ }
+
+ if (!fbeg || !fend) {
+ fbeg = NULL;
+ fend = NULL;
+ fnlen = 0;
+ } else {
+ fnlen = (size_t)(fend - fbeg);
+ }
+
+ /* In theory, it could be possible that someone crafts
+ * a request like name=filename=xyz. Check if name and
+ * filename do not overlap. */
+ if (!(((ptrdiff_t)fbeg > (ptrdiff_t)nend)
+ || ((ptrdiff_t)nbeg > (ptrdiff_t)fend))) {
+ mg_free(boundary);
+ return -1;
+ }
+
+ /* Call callback for new field */
+ memset(path, 0, sizeof(path));
+ field_count++;
+ field_storage = url_encoded_field_found(conn,
+ nbeg,
+ (size_t)(nend - nbeg),
+ ((fnlen > 0) ? fbeg : NULL),
+ fnlen,
+ path,
+ sizeof(path) - 1,
+ fdh);
+
+ /* If the boundary is already in the buffer, get the address,
+ * otherwise next will be NULL. */
+ next = search_boundary(hbuf,
+ (size_t)((buf - hbuf) + buf_fill),
+ boundary,
+ bl);
+
+ if (field_storage == MG_FORM_FIELD_STORAGE_STORE) {
+ /* Store the content to a file */
+ if (mg_fopen(conn, path, MG_FOPEN_MODE_WRITE, &fstore) == 0) {
+ fstore.access.fp = NULL;
+ }
+ file_size = 0;
+
+ if (!fstore.access.fp) {
+ mg_cry_internal(conn,
+ "%s: Cannot create file %s",
+ __func__,
+ path);
+ }
+ }
+
+ get_block = 0;
+ while (!next) {
+ /* Set "towrite" to the number of bytes available
+ * in the buffer */
+ towrite = (size_t)(buf - hend + buf_fill);
+
+ if (towrite < bl + 4) {
+ /* Not enough data stored. */
+ /* Incomplete request. */
+ mg_free(boundary);
+ return -1;
+ }
+
+ /* Subtract the boundary length, to deal with
+ * cases the boundary is only partially stored
+ * in the buffer. */
+ towrite -= bl + 4;
+
+ if (field_storage == MG_FORM_FIELD_STORAGE_GET) {
+ r = unencoded_field_get(conn,
+ ((get_block > 0) ? NULL : nbeg),
+ ((get_block > 0)
+ ? 0
+ : (size_t)(nend - nbeg)),
+ hend,
+ towrite,
+ fdh);
+ get_block++;
+ if (r == MG_FORM_FIELD_HANDLE_ABORT) {
+ /* Stop request handling */
+ break;
+ }
+ if (r == MG_FORM_FIELD_HANDLE_NEXT) {
+ /* Skip to next field */
+ field_storage = MG_FORM_FIELD_STORAGE_SKIP;
+ }
+ }
+
+ if (field_storage == MG_FORM_FIELD_STORAGE_STORE) {
+ if (fstore.access.fp) {
+
+ /* Store the content of the buffer. */
+ n = (size_t)fwrite(hend, 1, towrite, fstore.access.fp);
+ if ((n != towrite) || (ferror(fstore.access.fp))) {
+ mg_cry_internal(conn,
+ "%s: Cannot write file %s",
+ __func__,
+ path);
+ mg_fclose(&fstore.access);
+ remove_bad_file(conn, path);
+ }
+ file_size += (int64_t)n;
+ }
+ }
+
+ memmove(buf, hend + towrite, bl + 4);
+ buf_fill = (int)(bl + 4);
+ hend = buf;
+
+ /* Read new data */
+ to_read = sizeof(buf) - 1 - (size_t)buf_fill;
+ r = mg_read(conn, buf + (size_t)buf_fill, to_read);
+ if ((r < 0) || ((r == 0) && all_data_read)) {
+ /* read error */
+ if (fstore.access.fp) {
+ mg_fclose(&fstore.access);
+ remove_bad_file(conn, path);
+ }
+ mg_free(boundary);
+ return -1;
+ }
+ if (r == 0) {
+ all_data_read = (buf_fill == 0);
+ }
+
+ buf_fill += r;
+ buf[buf_fill] = 0;
+ /* buf_fill is at least 8 here */
+
+ /* Find boundary */
+ next = search_boundary(buf, (size_t)buf_fill, boundary, bl);
+
+ if (!next && (r == 0)) {
+ /* incomplete request */
+ all_data_read = 1;
+ }
+ }
+
+ towrite = (size_t)(next - hend);
+
+ if (field_storage == MG_FORM_FIELD_STORAGE_GET) {
+ /* Call callback */
+ r = unencoded_field_get(conn,
+ ((get_block > 0) ? NULL : nbeg),
+ ((get_block > 0)
+ ? 0
+ : (size_t)(nend - nbeg)),
+ hend,
+ towrite,
+ fdh);
+ if (r == MG_FORM_FIELD_HANDLE_ABORT) {
+ /* Stop request handling */
+ break;
+ }
+ if (r == MG_FORM_FIELD_HANDLE_NEXT) {
+ /* Skip to next field */
+ field_storage = MG_FORM_FIELD_STORAGE_SKIP;
+ }
+ }
+
+ if (field_storage == MG_FORM_FIELD_STORAGE_STORE) {
+
+ if (fstore.access.fp) {
+ n = (size_t)fwrite(hend, 1, towrite, fstore.access.fp);
+ if ((n != towrite) || (ferror(fstore.access.fp))) {
+ mg_cry_internal(conn,
+ "%s: Cannot write file %s",
+ __func__,
+ path);
+ mg_fclose(&fstore.access);
+ remove_bad_file(conn, path);
+ } else {
+ file_size += (int64_t)n;
+ r = mg_fclose(&fstore.access);
+ if (r == 0) {
+ /* stored successfully */
+ r = field_stored(conn, path, file_size, fdh);
+ if (r == MG_FORM_FIELD_HANDLE_ABORT) {
+ /* Stop request handling */
+ break;
+ }
+ } else {
+ mg_cry_internal(conn,
+ "%s: Error saving file %s",
+ __func__,
+ path);
+ remove_bad_file(conn, path);
+ }
+ }
+ fstore.access.fp = NULL;
+ }
+ }
+
+ if ((field_storage & MG_FORM_FIELD_STORAGE_ABORT)
+ == MG_FORM_FIELD_STORAGE_ABORT) {
+ /* Stop parsing the request */
+ break;
+ }
+
+ /* Remove from the buffer */
+ used = next - buf + 2;
+ memmove(buf, buf + (size_t)used, sizeof(buf) - (size_t)used);
+ buf_fill -= (int)used;
+ }
+
+ /* All parts handled */
+ mg_free(boundary);
+ return field_count;
+ }
+
+ /* Unknown Content-Type */
+ return -1;
+}
+
+/* End of handle_form.inl */
+
+
+#if defined(MG_LEGACY_INTERFACE)
+/* Implement the deprecated mg_upload function by calling the new
+ * mg_handle_form_request function. While mg_upload could only handle
+ * HTML forms sent as POST request in multipart/form-data format
+ * containing only file input elements, mg_handle_form_request can
+ * handle all form input elements and all standard request methods. */
+struct mg_upload_user_data {
+ struct mg_connection *conn;
+ const char *destination_dir;
+ int num_uploaded_files;
+};
+
+
+/* Helper function for deprecated mg_upload. */
+static int
+mg_upload_field_found(const char *key,
+ const char *filename,
+ char *path,
+ size_t pathlen,
+ void *user_data)
+{
+ int truncated = 0;
+ struct mg_upload_user_data *fud = (struct mg_upload_user_data *)user_data;
+ (void)key;
+
+ if (!filename) {
+ mg_cry_internal(fud->conn, "%s: No filename set", __func__);
+ return FORM_FIELD_STORAGE_ABORT;
+ }
+ mg_snprintf(fud->conn,
+ &truncated,
+ path,
+ pathlen - 1,
+ "%s/%s",
+ fud->destination_dir,
+ filename);
+ if (truncated) {
+ mg_cry_internal(fud->conn, "%s: File path too long", __func__);
+ return FORM_FIELD_STORAGE_ABORT;
+ }
+ return FORM_FIELD_STORAGE_STORE;
+}
+
+
+/* Helper function for deprecated mg_upload. */
+static int
+mg_upload_field_get(const char *key,
+ const char *value,
+ size_t value_size,
+ void *user_data)
+{
+ /* Function should never be called */
+ (void)key;
+ (void)value;
+ (void)value_size;
+ (void)user_data;
+
+ return 0;
+}
+
+
+/* Helper function for deprecated mg_upload. */
+static int
+mg_upload_field_stored(const char *path, long long file_size, void *user_data)
+{
+ struct mg_upload_user_data *fud = (struct mg_upload_user_data *)user_data;
+ (void)file_size;
+
+ fud->num_uploaded_files++;
+ fud->conn->phys_ctx->callbacks.upload(fud->conn, path);
+
+ return 0;
+}
+
+
+/* Deprecated function mg_upload - use mg_handle_form_request instead. */
+int
+mg_upload(struct mg_connection *conn, const char *destination_dir)
+{
+ struct mg_upload_user_data fud = {conn, destination_dir, 0};
+ struct mg_form_data_handler fdh = {mg_upload_field_found,
+ mg_upload_field_get,
+ mg_upload_field_stored,
+ 0};
+ int ret;
+
+ fdh.user_data = (void *)&fud;
+ ret = mg_handle_form_request(conn, &fdh);
+
+ if (ret < 0) {
+ mg_cry_internal(conn, "%s: Error while parsing the request", __func__);
+ }
+
+ return fud.num_uploaded_files;
+}
+#endif
+
+
+static int
+get_first_ssl_listener_index(const struct mg_context *ctx)
+{
+ unsigned int i;
+ int idx = -1;
+ if (ctx) {
+ for (i = 0; ((idx == -1) && (i < ctx->num_listening_sockets)); i++) {
+ idx = ctx->listening_sockets[i].is_ssl ? ((int)(i)) : -1;
+ }
+ }
+ return idx;
+}
+
+
+/* Return host (without port) */
+/* Use mg_free to free the result */
+static const char *
+alloc_get_host(struct mg_connection *conn)
+{
+ char buf[1025];
+ size_t buflen = sizeof(buf);
+ const char *host_header = get_header(conn->request_info.http_headers,
+ conn->request_info.num_headers,
+ "Host");
+ char *host;
+
+ if (host_header != NULL) {
+ char *pos;
+
+ /* Create a local copy of the "Host" header, since it might be
+ * modified here. */
+ mg_strlcpy(buf, host_header, buflen);
+ buf[buflen - 1] = '\0';
+ host = buf;
+ while (isspace((unsigned char)*host)) {
+ host++;
+ }
+
+ /* If the "Host" is an IPv6 address, like [::1], parse until ]
+ * is found. */
+ if (*host == '[') {
+ pos = strchr(host, ']');
+ if (!pos) {
+ /* Malformed hostname starts with '[', but no ']' found */
+ DEBUG_TRACE("%s", "Host name format error '[' without ']'");
+ return NULL;
+ }
+ /* terminate after ']' */
+ pos[1] = 0;
+ } else {
+ /* Otherwise, a ':' separates hostname and port number */
+ pos = strchr(host, ':');
+ if (pos != NULL) {
+ *pos = '\0';
+ }
+ }
+
+ if (conn->ssl) {
+ /* This is a HTTPS connection, maybe we have a hostname
+ * from SNI (set in ssl_servername_callback). */
+ const char *sslhost = conn->dom_ctx->config[AUTHENTICATION_DOMAIN];
+ if (sslhost && (conn->dom_ctx != &(conn->phys_ctx->dd))) {
+ /* We are not using the default domain */
+ if (mg_strcasecmp(host, sslhost)) {
+ /* Mismatch between SNI domain and HTTP domain */
+ DEBUG_TRACE("Host mismatch: SNI: %s, HTTPS: %s",
+ sslhost,
+ host);
+ return NULL;
+ }
+ }
+ DEBUG_TRACE("HTTPS Host: %s", host);
+
+ } else {
+ struct mg_domain_context *dom = &(conn->phys_ctx->dd);
+ while (dom) {
+ if (!mg_strcasecmp(host, dom->config[AUTHENTICATION_DOMAIN])) {
+
+ /* Found matching domain */
+ DEBUG_TRACE("HTTP domain %s found",
+ dom->config[AUTHENTICATION_DOMAIN]);
+
+ /* TODO: Check if this is a HTTP or HTTPS domain */
+ conn->dom_ctx = dom;
+ break;
+ }
+ dom = dom->next;
+ }
+
+ DEBUG_TRACE("HTTP Host: %s", host);
+ }
+
+ } else {
+ sockaddr_to_string(buf, buflen, &conn->client.lsa);
+ host = buf;
+
+ DEBUG_TRACE("IP: %s", host);
+ }
+
+ return mg_strdup_ctx(host, conn->phys_ctx);
+}
+
+
+static void
+redirect_to_https_port(struct mg_connection *conn, int ssl_index)
+{
+ char target_url[MG_BUF_LEN];
+ int truncated = 0;
+
+ conn->must_close = 1;
+
+ /* Send host, port, uri and (if it exists) ?query_string */
+ if (conn->host) {
+
+ /* Use "308 Permanent Redirect" */
+ int redirect_code = 308;
+
+ /* Create target URL */
+ mg_snprintf(
+ conn,
+ &truncated,
+ target_url,
+ sizeof(target_url),
+ "https://%s:%d%s%s%s",
+
+ conn->host,
+#if defined(USE_IPV6)
+ (conn->phys_ctx->listening_sockets[ssl_index].lsa.sa.sa_family
+ == AF_INET6)
+ ? (int)ntohs(conn->phys_ctx->listening_sockets[ssl_index]
+ .lsa.sin6.sin6_port)
+ :
+#endif
+ (int)ntohs(conn->phys_ctx->listening_sockets[ssl_index]
+ .lsa.sin.sin_port),
+ conn->request_info.local_uri,
+ (conn->request_info.query_string == NULL) ? "" : "?",
+ (conn->request_info.query_string == NULL)
+ ? ""
+ : conn->request_info.query_string);
+
+ /* Check overflow in location buffer (will not occur if MG_BUF_LEN
+ * is used as buffer size) */
+ if (truncated) {
+ mg_send_http_error(conn, 500, "%s", "Redirect URL too long");
+ return;
+ }
+
+ /* Use redirect helper function */
+ mg_send_http_redirect(conn, target_url, redirect_code);
+ }
+}
+
+
+static void
+handler_info_acquire(struct mg_handler_info *handler_info)
+{
+ pthread_mutex_lock(&handler_info->refcount_mutex);
+ handler_info->refcount++;
+ pthread_mutex_unlock(&handler_info->refcount_mutex);
+}
+
+
+static void
+handler_info_release(struct mg_handler_info *handler_info)
+{
+ pthread_mutex_lock(&handler_info->refcount_mutex);
+ handler_info->refcount--;
+ pthread_cond_signal(&handler_info->refcount_cond);
+ pthread_mutex_unlock(&handler_info->refcount_mutex);
+}
+
+
+static void
+handler_info_wait_unused(struct mg_handler_info *handler_info)
+{
+ pthread_mutex_lock(&handler_info->refcount_mutex);
+ while (handler_info->refcount) {
+ pthread_cond_wait(&handler_info->refcount_cond,
+ &handler_info->refcount_mutex);
+ }
+ pthread_mutex_unlock(&handler_info->refcount_mutex);
+}
+
+
+static void
+mg_set_handler_type(struct mg_context *phys_ctx,
+ struct mg_domain_context *dom_ctx,
+ const char *uri,
+ int handler_type,
+ int is_delete_request,
+ mg_request_handler handler,
+ struct mg_websocket_subprotocols *subprotocols,
+ mg_websocket_connect_handler connect_handler,
+ mg_websocket_ready_handler ready_handler,
+ mg_websocket_data_handler data_handler,
+ mg_websocket_close_handler close_handler,
+ mg_authorization_handler auth_handler,
+ void *cbdata)
+{
+ struct mg_handler_info *tmp_rh, **lastref;
+ size_t urilen = strlen(uri);
+
+ if (handler_type == WEBSOCKET_HANDLER) {
+ DEBUG_ASSERT(handler == NULL);
+ DEBUG_ASSERT(is_delete_request || connect_handler != NULL
+ || ready_handler != NULL || data_handler != NULL
+ || close_handler != NULL);
+
+ DEBUG_ASSERT(auth_handler == NULL);
+ if (handler != NULL) {
+ return;
+ }
+ if (!is_delete_request && (connect_handler == NULL)
+ && (ready_handler == NULL) && (data_handler == NULL)
+ && (close_handler == NULL)) {
+ return;
+ }
+ if (auth_handler != NULL) {
+ return;
+ }
+ } else if (handler_type == REQUEST_HANDLER) {
+ DEBUG_ASSERT(connect_handler == NULL && ready_handler == NULL
+ && data_handler == NULL && close_handler == NULL);
+ DEBUG_ASSERT(is_delete_request || (handler != NULL));
+ DEBUG_ASSERT(auth_handler == NULL);
+
+ if ((connect_handler != NULL) || (ready_handler != NULL)
+ || (data_handler != NULL) || (close_handler != NULL)) {
+ return;
+ }
+ if (!is_delete_request && (handler == NULL)) {
+ return;
+ }
+ if (auth_handler != NULL) {
+ return;
+ }
+ } else { /* AUTH_HANDLER */
+ DEBUG_ASSERT(handler == NULL);
+ DEBUG_ASSERT(connect_handler == NULL && ready_handler == NULL
+ && data_handler == NULL && close_handler == NULL);
+ DEBUG_ASSERT(auth_handler != NULL);
+ if (handler != NULL) {
+ return;
+ }
+ if ((connect_handler != NULL) || (ready_handler != NULL)
+ || (data_handler != NULL) || (close_handler != NULL)) {
+ return;
+ }
+ if (!is_delete_request && (auth_handler == NULL)) {
+ return;
+ }
+ }
+
+ if (!phys_ctx || !dom_ctx) {
+ return;
+ }
+
+ mg_lock_context(phys_ctx);
+
+ /* first try to find an existing handler */
+ lastref = &(dom_ctx->handlers);
+ for (tmp_rh = dom_ctx->handlers; tmp_rh != NULL; tmp_rh = tmp_rh->next) {
+ if (tmp_rh->handler_type == handler_type) {
+ if ((urilen == tmp_rh->uri_len) && !strcmp(tmp_rh->uri, uri)) {
+ if (!is_delete_request) {
+ /* update existing handler */
+ if (handler_type == REQUEST_HANDLER) {
+ /* Wait for end of use before updating */
+ handler_info_wait_unused(tmp_rh);
+
+ /* Ok, the handler is no more use -> Update it */
+ tmp_rh->handler = handler;
+ } else if (handler_type == WEBSOCKET_HANDLER) {
+ tmp_rh->subprotocols = subprotocols;
+ tmp_rh->connect_handler = connect_handler;
+ tmp_rh->ready_handler = ready_handler;
+ tmp_rh->data_handler = data_handler;
+ tmp_rh->close_handler = close_handler;
+ } else { /* AUTH_HANDLER */
+ tmp_rh->auth_handler = auth_handler;
+ }
+ tmp_rh->cbdata = cbdata;
+ } else {
+ /* remove existing handler */
+ if (handler_type == REQUEST_HANDLER) {
+ /* Wait for end of use before removing */
+ handler_info_wait_unused(tmp_rh);
+
+ /* Ok, the handler is no more used -> Destroy resources
+ */
+ pthread_cond_destroy(&tmp_rh->refcount_cond);
+ pthread_mutex_destroy(&tmp_rh->refcount_mutex);
+ }
+ *lastref = tmp_rh->next;
+ mg_free(tmp_rh->uri);
+ mg_free(tmp_rh);
+ }
+ mg_unlock_context(phys_ctx);
+ return;
+ }
+ }
+ lastref = &(tmp_rh->next);
+ }
+
+ if (is_delete_request) {
+ /* no handler to set, this was a remove request to a non-existing
+ * handler */
+ mg_unlock_context(phys_ctx);
+ return;
+ }
+
+ tmp_rh =
+ (struct mg_handler_info *)mg_calloc_ctx(sizeof(struct mg_handler_info),
+ 1,
+ phys_ctx);
+ if (tmp_rh == NULL) {
+ mg_unlock_context(phys_ctx);
+ mg_cry_ctx_internal(phys_ctx,
+ "%s",
+ "Cannot create new request handler struct, OOM");
+ return;
+ }
+ tmp_rh->uri = mg_strdup_ctx(uri, phys_ctx);
+ if (!tmp_rh->uri) {
+ mg_unlock_context(phys_ctx);
+ mg_free(tmp_rh);
+ mg_cry_ctx_internal(phys_ctx,
+ "%s",
+ "Cannot create new request handler struct, OOM");
+ return;
+ }
+ tmp_rh->uri_len = urilen;
+ if (handler_type == REQUEST_HANDLER) {
+ /* Init refcount mutex and condition */
+ if (0 != pthread_mutex_init(&tmp_rh->refcount_mutex, NULL)) {
+ mg_unlock_context(phys_ctx);
+ mg_free(tmp_rh);
+ mg_cry_ctx_internal(phys_ctx, "%s", "Cannot init refcount mutex");
+ return;
+ }
+ if (0 != pthread_cond_init(&tmp_rh->refcount_cond, NULL)) {
+ mg_unlock_context(phys_ctx);
+ pthread_mutex_destroy(&tmp_rh->refcount_mutex);
+ mg_free(tmp_rh);
+ mg_cry_ctx_internal(phys_ctx, "%s", "Cannot init refcount cond");
+ return;
+ }
+ tmp_rh->refcount = 0;
+ tmp_rh->handler = handler;
+ } else if (handler_type == WEBSOCKET_HANDLER) {
+ tmp_rh->subprotocols = subprotocols;
+ tmp_rh->connect_handler = connect_handler;
+ tmp_rh->ready_handler = ready_handler;
+ tmp_rh->data_handler = data_handler;
+ tmp_rh->close_handler = close_handler;
+ } else { /* AUTH_HANDLER */
+ tmp_rh->auth_handler = auth_handler;
+ }
+ tmp_rh->cbdata = cbdata;
+ tmp_rh->handler_type = handler_type;
+ tmp_rh->next = NULL;
+
+ *lastref = tmp_rh;
+ mg_unlock_context(phys_ctx);
+}
+
+
+void
+mg_set_request_handler(struct mg_context *ctx,
+ const char *uri,
+ mg_request_handler handler,
+ void *cbdata)
+{
+ mg_set_handler_type(ctx,
+ &(ctx->dd),
+ uri,
+ REQUEST_HANDLER,
+ handler == NULL,
+ handler,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ cbdata);
+}
+
+
+void
+mg_set_websocket_handler(struct mg_context *ctx,
+ const char *uri,
+ mg_websocket_connect_handler connect_handler,
+ mg_websocket_ready_handler ready_handler,
+ mg_websocket_data_handler data_handler,
+ mg_websocket_close_handler close_handler,
+ void *cbdata)
+{
+ mg_set_websocket_handler_with_subprotocols(ctx,
+ uri,
+ NULL,
+ connect_handler,
+ ready_handler,
+ data_handler,
+ close_handler,
+ cbdata);
+}
+
+
+void
+mg_set_websocket_handler_with_subprotocols(
+ struct mg_context *ctx,
+ const char *uri,
+ struct mg_websocket_subprotocols *subprotocols,
+ mg_websocket_connect_handler connect_handler,
+ mg_websocket_ready_handler ready_handler,
+ mg_websocket_data_handler data_handler,
+ mg_websocket_close_handler close_handler,
+ void *cbdata)
+{
+ int is_delete_request = (connect_handler == NULL) && (ready_handler == NULL)
+ && (data_handler == NULL)
+ && (close_handler == NULL);
+ mg_set_handler_type(ctx,
+ &(ctx->dd),
+ uri,
+ WEBSOCKET_HANDLER,
+ is_delete_request,
+ NULL,
+ subprotocols,
+ connect_handler,
+ ready_handler,
+ data_handler,
+ close_handler,
+ NULL,
+ cbdata);
+}
+
+
+void
+mg_set_auth_handler(struct mg_context *ctx,
+ const char *uri,
+ mg_authorization_handler handler,
+ void *cbdata)
+{
+ mg_set_handler_type(ctx,
+ &(ctx->dd),
+ uri,
+ AUTH_HANDLER,
+ handler == NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ handler,
+ cbdata);
+}
+
+
+static int
+get_request_handler(struct mg_connection *conn,
+ int handler_type,
+ mg_request_handler *handler,
+ struct mg_websocket_subprotocols **subprotocols,
+ mg_websocket_connect_handler *connect_handler,
+ mg_websocket_ready_handler *ready_handler,
+ mg_websocket_data_handler *data_handler,
+ mg_websocket_close_handler *close_handler,
+ mg_authorization_handler *auth_handler,
+ void **cbdata,
+ struct mg_handler_info **handler_info)
+{
+ const struct mg_request_info *request_info = mg_get_request_info(conn);
+ if (request_info) {
+ const char *uri = request_info->local_uri;
+ size_t urilen = strlen(uri);
+ struct mg_handler_info *tmp_rh;
+
+ if (!conn || !conn->phys_ctx || !conn->dom_ctx) {
+ return 0;
+ }
+
+ mg_lock_context(conn->phys_ctx);
+
+ /* first try for an exact match */
+ for (tmp_rh = conn->dom_ctx->handlers; tmp_rh != NULL;
+ tmp_rh = tmp_rh->next) {
+ if (tmp_rh->handler_type == handler_type) {
+ if ((urilen == tmp_rh->uri_len) && !strcmp(tmp_rh->uri, uri)) {
+ if (handler_type == WEBSOCKET_HANDLER) {
+ *subprotocols = tmp_rh->subprotocols;
+ *connect_handler = tmp_rh->connect_handler;
+ *ready_handler = tmp_rh->ready_handler;
+ *data_handler = tmp_rh->data_handler;
+ *close_handler = tmp_rh->close_handler;
+ } else if (handler_type == REQUEST_HANDLER) {
+ *handler = tmp_rh->handler;
+ /* Acquire handler and give it back */
+ handler_info_acquire(tmp_rh);
+ *handler_info = tmp_rh;
+ } else { /* AUTH_HANDLER */
+ *auth_handler = tmp_rh->auth_handler;
+ }
+ *cbdata = tmp_rh->cbdata;
+ mg_unlock_context(conn->phys_ctx);
+ return 1;
+ }
+ }
+ }
+
+ /* next try for a partial match, we will accept uri/something */
+ for (tmp_rh = conn->dom_ctx->handlers; tmp_rh != NULL;
+ tmp_rh = tmp_rh->next) {
+ if (tmp_rh->handler_type == handler_type) {
+ if ((tmp_rh->uri_len < urilen) && (uri[tmp_rh->uri_len] == '/')
+ && (memcmp(tmp_rh->uri, uri, tmp_rh->uri_len) == 0)) {
+ if (handler_type == WEBSOCKET_HANDLER) {
+ *subprotocols = tmp_rh->subprotocols;
+ *connect_handler = tmp_rh->connect_handler;
+ *ready_handler = tmp_rh->ready_handler;
+ *data_handler = tmp_rh->data_handler;
+ *close_handler = tmp_rh->close_handler;
+ } else if (handler_type == REQUEST_HANDLER) {
+ *handler = tmp_rh->handler;
+ /* Acquire handler and give it back */
+ handler_info_acquire(tmp_rh);
+ *handler_info = tmp_rh;
+ } else { /* AUTH_HANDLER */
+ *auth_handler = tmp_rh->auth_handler;
+ }
+ *cbdata = tmp_rh->cbdata;
+ mg_unlock_context(conn->phys_ctx);
+ return 1;
+ }
+ }
+ }
+
+ /* finally try for pattern match */
+ for (tmp_rh = conn->dom_ctx->handlers; tmp_rh != NULL;
+ tmp_rh = tmp_rh->next) {
+ if (tmp_rh->handler_type == handler_type) {
+ if (match_prefix(tmp_rh->uri, tmp_rh->uri_len, uri) > 0) {
+ if (handler_type == WEBSOCKET_HANDLER) {
+ *subprotocols = tmp_rh->subprotocols;
+ *connect_handler = tmp_rh->connect_handler;
+ *ready_handler = tmp_rh->ready_handler;
+ *data_handler = tmp_rh->data_handler;
+ *close_handler = tmp_rh->close_handler;
+ } else if (handler_type == REQUEST_HANDLER) {
+ *handler = tmp_rh->handler;
+ /* Acquire handler and give it back */
+ handler_info_acquire(tmp_rh);
+ *handler_info = tmp_rh;
+ } else { /* AUTH_HANDLER */
+ *auth_handler = tmp_rh->auth_handler;
+ }
+ *cbdata = tmp_rh->cbdata;
+ mg_unlock_context(conn->phys_ctx);
+ return 1;
+ }
+ }
+ }
+
+ mg_unlock_context(conn->phys_ctx);
+ }
+ return 0; /* none found */
+}
+
+
+/* Check if the script file is in a path, allowed for script files.
+ * This can be used if uploading files is possible not only for the server
+ * admin, and the upload mechanism does not check the file extension.
+ */
+static int
+is_in_script_path(const struct mg_connection *conn, const char *path)
+{
+ /* TODO (Feature): Add config value for allowed script path.
+ * Default: All allowed. */
+ (void)conn;
+ (void)path;
+ return 1;
+}
+
+
+#if defined(USE_WEBSOCKET) && defined(MG_LEGACY_INTERFACE)
+static int
+deprecated_websocket_connect_wrapper(const struct mg_connection *conn,
+ void *cbdata)
+{
+ struct mg_callbacks *pcallbacks = (struct mg_callbacks *)cbdata;
+ if (pcallbacks->websocket_connect) {
+ return pcallbacks->websocket_connect(conn);
+ }
+ /* No handler set - assume "OK" */
+ return 0;
+}
+
+
+static void
+deprecated_websocket_ready_wrapper(struct mg_connection *conn, void *cbdata)
+{
+ struct mg_callbacks *pcallbacks = (struct mg_callbacks *)cbdata;
+ if (pcallbacks->websocket_ready) {
+ pcallbacks->websocket_ready(conn);
+ }
+}
+
+
+static int
+deprecated_websocket_data_wrapper(struct mg_connection *conn,
+ int bits,
+ char *data,
+ size_t len,
+ void *cbdata)
+{
+ struct mg_callbacks *pcallbacks = (struct mg_callbacks *)cbdata;
+ if (pcallbacks->websocket_data) {
+ return pcallbacks->websocket_data(conn, bits, data, len);
+ }
+ /* No handler set - assume "OK" */
+ return 1;
+}
+#endif
+
+
+/* This is the heart of the Civetweb's logic.
+ * This function is called when the request is read, parsed and validated,
+ * and Civetweb must decide what action to take: serve a file, or
+ * a directory, or call embedded function, etcetera. */
+static void
+handle_request(struct mg_connection *conn)
+{
+ struct mg_request_info *ri = &conn->request_info;
+ char path[PATH_MAX];
+ int uri_len, ssl_index;
+ int is_found = 0, is_script_resource = 0, is_websocket_request = 0,
+ is_put_or_delete_request = 0, is_callback_resource = 0;
+ int i;
+ struct mg_file file = STRUCT_FILE_INITIALIZER;
+ mg_request_handler callback_handler = NULL;
+ struct mg_handler_info *handler_info = NULL;
+ struct mg_websocket_subprotocols *subprotocols;
+ mg_websocket_connect_handler ws_connect_handler = NULL;
+ mg_websocket_ready_handler ws_ready_handler = NULL;
+ mg_websocket_data_handler ws_data_handler = NULL;
+ mg_websocket_close_handler ws_close_handler = NULL;
+ void *callback_data = NULL;
+ mg_authorization_handler auth_handler = NULL;
+ void *auth_callback_data = NULL;
+ int handler_type;
+ time_t curtime = time(NULL);
+ char date[64];
+
+ path[0] = 0;
+
+ /* 1. get the request url */
+ /* 1.1. split into url and query string */
+ if ((conn->request_info.query_string = strchr(ri->request_uri, '?'))
+ != NULL) {
+ *((char *)conn->request_info.query_string++) = '\0';
+ }
+
+ /* 1.2. do a https redirect, if required. Do not decode URIs yet. */
+ if (!conn->client.is_ssl && conn->client.ssl_redir) {
+ ssl_index = get_first_ssl_listener_index(conn->phys_ctx);
+ if (ssl_index >= 0) {
+ redirect_to_https_port(conn, ssl_index);
+ } else {
+ /* A http to https forward port has been specified,
+ * but no https port to forward to. */
+ mg_send_http_error(conn,
+ 503,
+ "%s",
+ "Error: SSL forward not configured properly");
+ mg_cry_internal(conn,
+ "%s",
+ "Can not redirect to SSL, no SSL port available");
+ }
+ return;
+ }
+ uri_len = (int)strlen(ri->local_uri);
+
+ /* 1.3. decode url (if config says so) */
+ if (should_decode_url(conn)) {
+ mg_url_decode(
+ ri->local_uri, uri_len, (char *)ri->local_uri, uri_len + 1, 0);
+ }
+
+ /* 1.4. clean URIs, so a path like allowed_dir/../forbidden_file is
+ * not possible */
+ remove_double_dots_and_double_slashes((char *)ri->local_uri);
+
+ /* step 1. completed, the url is known now */
+ uri_len = (int)strlen(ri->local_uri);
+ DEBUG_TRACE("URL: %s", ri->local_uri);
+
+ /* 2. if this ip has limited speed, set it for this connection */
+ conn->throttle = set_throttle(conn->dom_ctx->config[THROTTLE],
+ get_remote_ip(conn),
+ ri->local_uri);
+
+ /* 3. call a "handle everything" callback, if registered */
+ if (conn->phys_ctx->callbacks.begin_request != NULL) {
+ /* Note that since V1.7 the "begin_request" function is called
+ * before an authorization check. If an authorization check is
+ * required, use a request_handler instead. */
+ i = conn->phys_ctx->callbacks.begin_request(conn);
+ if (i > 0) {
+ /* callback already processed the request. Store the
+ return value as a status code for the access log. */
+ conn->status_code = i;
+ discard_unread_request_data(conn);
+ return;
+ } else if (i == 0) {
+ /* civetweb should process the request */
+ } else {
+ /* unspecified - may change with the next version */
+ return;
+ }
+ }
+
+ /* request not yet handled by a handler or redirect, so the request
+ * is processed here */
+
+ /* 4. Check for CORS preflight requests and handle them (if configured).
+ * https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS
+ */
+ if (!strcmp(ri->request_method, "OPTIONS")) {
+ /* Send a response to CORS preflights only if
+ * access_control_allow_methods is not NULL and not an empty string.
+ * In this case, scripts can still handle CORS. */
+ const char *cors_meth_cfg =
+ conn->dom_ctx->config[ACCESS_CONTROL_ALLOW_METHODS];
+ const char *cors_orig_cfg =
+ conn->dom_ctx->config[ACCESS_CONTROL_ALLOW_ORIGIN];
+ const char *cors_origin =
+ get_header(ri->http_headers, ri->num_headers, "Origin");
+ const char *cors_acrm = get_header(ri->http_headers,
+ ri->num_headers,
+ "Access-Control-Request-Method");
+
+ /* Todo: check if cors_origin is in cors_orig_cfg.
+ * Or, let the client check this. */
+
+ if ((cors_meth_cfg != NULL) && (*cors_meth_cfg != 0)
+ && (cors_orig_cfg != NULL) && (*cors_orig_cfg != 0)
+ && (cors_origin != NULL) && (cors_acrm != NULL)) {
+ /* This is a valid CORS preflight, and the server is configured
+ * to
+ * handle it automatically. */
+ const char *cors_acrh =
+ get_header(ri->http_headers,
+ ri->num_headers,
+ "Access-Control-Request-Headers");
+
+ gmt_time_string(date, sizeof(date), &curtime);
+ mg_printf(conn,
+ "HTTP/1.1 200 OK\r\n"
+ "Date: %s\r\n"
+ "Access-Control-Allow-Origin: %s\r\n"
+ "Access-Control-Allow-Methods: %s\r\n"
+ "Content-Length: 0\r\n"
+ "Connection: %s\r\n",
+ date,
+ cors_orig_cfg,
+ ((cors_meth_cfg[0] == '*') ? cors_acrm : cors_meth_cfg),
+ suggest_connection_header(conn));
+
+ if (cors_acrh != NULL) {
+ /* CORS request is asking for additional headers */
+ const char *cors_hdr_cfg =
+ conn->dom_ctx->config[ACCESS_CONTROL_ALLOW_HEADERS];
+
+ if ((cors_hdr_cfg != NULL) && (*cors_hdr_cfg != 0)) {
+ /* Allow only if access_control_allow_headers is
+ * not NULL and not an empty string. If this
+ * configuration is set to *, allow everything.
+ * Otherwise this configuration must be a list
+ * of allowed HTTP header names. */
+ mg_printf(conn,
+ "Access-Control-Allow-Headers: %s\r\n",
+ ((cors_hdr_cfg[0] == '*') ? cors_acrh
+ : cors_hdr_cfg));
+ }
+ }
+ mg_printf(conn, "Access-Control-Max-Age: 60\r\n");
+
+ mg_printf(conn, "\r\n");
+ return;
+ }
+ }
+
+ /* 5. interpret the url to find out how the request must be handled
+ */
+ /* 5.1. first test, if the request targets the regular http(s)://
+ * protocol namespace or the websocket ws(s):// protocol namespace.
+ */
+ is_websocket_request = is_websocket_protocol(conn);
+#if defined(USE_WEBSOCKET)
+ handler_type = is_websocket_request ? WEBSOCKET_HANDLER : REQUEST_HANDLER;
+#else
+ handler_type = REQUEST_HANDLER;
+#endif /* defined(USE_WEBSOCKET) */
+ /* 5.2. check if the request will be handled by a callback */
+ if (get_request_handler(conn,
+ handler_type,
+ &callback_handler,
+ &subprotocols,
+ &ws_connect_handler,
+ &ws_ready_handler,
+ &ws_data_handler,
+ &ws_close_handler,
+ NULL,
+ &callback_data,
+ &handler_info)) {
+ /* 5.2.1. A callback will handle this request. All requests
+ * handled
+ * by a callback have to be considered as requests to a script
+ * resource. */
+ is_callback_resource = 1;
+ is_script_resource = 1;
+ is_put_or_delete_request = is_put_or_delete_method(conn);
+ } else {
+ no_callback_resource:
+
+ /* 5.2.2. No callback is responsible for this request. The URI
+ * addresses a file based resource (static content or Lua/cgi
+ * scripts in the file system). */
+ is_callback_resource = 0;
+ interpret_uri(conn,
+ path,
+ sizeof(path),
+ &file.stat,
+ &is_found,
+ &is_script_resource,
+ &is_websocket_request,
+ &is_put_or_delete_request);
+ }
+
+ /* 6. authorization check */
+ /* 6.1. a custom authorization handler is installed */
+ if (get_request_handler(conn,
+ AUTH_HANDLER,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ &auth_handler,
+ &auth_callback_data,
+ NULL)) {
+ if (!auth_handler(conn, auth_callback_data)) {
+ return;
+ }
+ } else if (is_put_or_delete_request && !is_script_resource
+ && !is_callback_resource) {
+/* 6.2. this request is a PUT/DELETE to a real file */
+/* 6.2.1. thus, the server must have real files */
+#if defined(NO_FILES)
+ if (1) {
+#else
+ if (conn->dom_ctx->config[DOCUMENT_ROOT] == NULL) {
+#endif
+ /* This server does not have any real files, thus the
+ * PUT/DELETE methods are not valid. */
+ mg_send_http_error(conn,
+ 405,
+ "%s method not allowed",
+ conn->request_info.request_method);
+ return;
+ }
+
+#if !defined(NO_FILES)
+ /* 6.2.2. Check if put authorization for static files is
+ * available.
+ */
+ if (!is_authorized_for_put(conn)) {
+ send_authorization_request(conn, NULL);
+ return;
+ }
+#endif
+
+ } else {
+ /* 6.3. This is either a OPTIONS, GET, HEAD or POST request,
+ * or it is a PUT or DELETE request to a resource that does not
+ * correspond to a file. Check authorization. */
+ if (!check_authorization(conn, path)) {
+ send_authorization_request(conn, NULL);
+ return;
+ }
+ }
+
+ /* request is authorized or does not need authorization */
+
+ /* 7. check if there are request handlers for this uri */
+ if (is_callback_resource) {
+ if (!is_websocket_request) {
+ i = callback_handler(conn, callback_data);
+
+ /* Callback handler will not be used anymore. Release it */
+ handler_info_release(handler_info);
+
+ if (i > 0) {
+ /* Do nothing, callback has served the request. Store
+ * then return value as status code for the log and discard
+ * all data from the client not used by the callback. */
+ conn->status_code = i;
+ discard_unread_request_data(conn);
+ } else {
+ /* The handler did NOT handle the request. */
+ /* Some proper reactions would be:
+ * a) close the connections without sending anything
+ * b) send a 404 not found
+ * c) try if there is a file matching the URI
+ * It would be possible to do a, b or c in the callback
+ * implementation, and return 1 - we cannot do anything
+ * here, that is not possible in the callback.
+ *
+ * TODO: What would be the best reaction here?
+ * (Note: The reaction may change, if there is a better
+ *idea.)
+ */
+
+ /* For the moment, use option c: We look for a proper file,
+ * but since a file request is not always a script resource,
+ * the authorization check might be different. */
+ interpret_uri(conn,
+ path,
+ sizeof(path),
+ &file.stat,
+ &is_found,
+ &is_script_resource,
+ &is_websocket_request,
+ &is_put_or_delete_request);
+ callback_handler = NULL;
+
+ /* Here we are at a dead end:
+ * According to URI matching, a callback should be
+ * responsible for handling the request,
+ * we called it, but the callback declared itself
+ * not responsible.
+ * We use a goto here, to get out of this dead end,
+ * and continue with the default handling.
+ * A goto here is simpler and better to understand
+ * than some curious loop. */
+ goto no_callback_resource;
+ }
+ } else {
+#if defined(USE_WEBSOCKET)
+ handle_websocket_request(conn,
+ path,
+ is_callback_resource,
+ subprotocols,
+ ws_connect_handler,
+ ws_ready_handler,
+ ws_data_handler,
+ ws_close_handler,
+ callback_data);
+#endif
+ }
+ return;
+ }
+
+/* 8. handle websocket requests */
+#if defined(USE_WEBSOCKET)
+ if (is_websocket_request) {
+ if (is_script_resource) {
+
+ if (is_in_script_path(conn, path)) {
+ /* Websocket Lua script */
+ handle_websocket_request(conn,
+ path,
+ 0 /* Lua Script */,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ conn->phys_ctx->user_data);
+ } else {
+ /* Script was in an illegal path */
+ mg_send_http_error(conn, 403, "%s", "Forbidden");
+ }
+ } else {
+#if defined(MG_LEGACY_INTERFACE)
+ handle_websocket_request(
+ conn,
+ path,
+ !is_script_resource /* could be deprecated global callback */,
+ NULL,
+ deprecated_websocket_connect_wrapper,
+ deprecated_websocket_ready_wrapper,
+ deprecated_websocket_data_wrapper,
+ NULL,
+ conn->phys_ctx->user_data);
+#else
+ mg_send_http_error(conn, 404, "%s", "Not found");
+#endif
+ }
+ return;
+ } else
+#endif
+
+#if defined(NO_FILES)
+ /* 9a. In case the server uses only callbacks, this uri is
+ * unknown.
+ * Then, all request handling ends here. */
+ mg_send_http_error(conn, 404, "%s", "Not Found");
+
+#else
+ /* 9b. This request is either for a static file or resource handled
+ * by a script file. Thus, a DOCUMENT_ROOT must exist. */
+ if (conn->dom_ctx->config[DOCUMENT_ROOT] == NULL) {
+ mg_send_http_error(conn, 404, "%s", "Not Found");
+ return;
+ }
+
+ /* 10. Request is handled by a script */
+ if (is_script_resource) {
+ handle_file_based_request(conn, path, &file);
+ return;
+ }
+
+ /* 11. Handle put/delete/mkcol requests */
+ if (is_put_or_delete_request) {
+ /* 11.1. PUT method */
+ if (!strcmp(ri->request_method, "PUT")) {
+ put_file(conn, path);
+ return;
+ }
+ /* 11.2. DELETE method */
+ if (!strcmp(ri->request_method, "DELETE")) {
+ delete_file(conn, path);
+ return;
+ }
+ /* 11.3. MKCOL method */
+ if (!strcmp(ri->request_method, "MKCOL")) {
+ mkcol(conn, path);
+ return;
+ }
+ /* 11.4. PATCH method
+ * This method is not supported for static resources,
+ * only for scripts (Lua, CGI) and callbacks. */
+ mg_send_http_error(conn,
+ 405,
+ "%s method not allowed",
+ conn->request_info.request_method);
+ return;
+ }
+
+ /* 11. File does not exist, or it was configured that it should be
+ * hidden */
+ if (!is_found || (must_hide_file(conn, path))) {
+ mg_send_http_error(conn, 404, "%s", "Not found");
+ return;
+ }
+
+ /* 12. Directory uris should end with a slash */
+ if (file.stat.is_directory && (uri_len > 0)
+ && (ri->local_uri[uri_len - 1] != '/')) {
+ gmt_time_string(date, sizeof(date), &curtime);
+ mg_printf(conn,
+ "HTTP/1.1 301 Moved Permanently\r\n"
+ "Location: %s/\r\n"
+ "Date: %s\r\n"
+ /* "Cache-Control: private\r\n" (= default) */
+ "Content-Length: 0\r\n"
+ "Connection: %s\r\n",
+ ri->request_uri,
+ date,
+ suggest_connection_header(conn));
+ send_additional_header(conn);
+ mg_printf(conn, "\r\n");
+ return;
+ }
+
+ /* 13. Handle other methods than GET/HEAD */
+ /* 13.1. Handle PROPFIND */
+ if (!strcmp(ri->request_method, "PROPFIND")) {
+ handle_propfind(conn, path, &file.stat);
+ return;
+ }
+ /* 13.2. Handle OPTIONS for files */
+ if (!strcmp(ri->request_method, "OPTIONS")) {
+ /* This standard handler is only used for real files.
+ * Scripts should support the OPTIONS method themselves, to allow a
+ * maximum flexibility.
+ * Lua and CGI scripts may fully support CORS this way (including
+ * preflights). */
+ send_options(conn);
+ return;
+ }
+ /* 13.3. everything but GET and HEAD (e.g. POST) */
+ if ((0 != strcmp(ri->request_method, "GET"))
+ && (0 != strcmp(ri->request_method, "HEAD"))) {
+ mg_send_http_error(conn,
+ 405,
+ "%s method not allowed",
+ conn->request_info.request_method);
+ return;
+ }
+
+ /* 14. directories */
+ if (file.stat.is_directory) {
+ /* Substitute files have already been handled above. */
+ /* Here we can either generate and send a directory listing,
+ * or send an "access denied" error. */
+ if (!mg_strcasecmp(conn->dom_ctx->config[ENABLE_DIRECTORY_LISTING],
+ "yes")) {
+ handle_directory_request(conn, path);
+ } else {
+ mg_send_http_error(conn,
+ 403,
+ "%s",
+ "Error: Directory listing denied");
+ }
+ return;
+ }
+
+ /* 15. read a normal file with GET or HEAD */
+ handle_file_based_request(conn, path, &file);
+#endif /* !defined(NO_FILES) */
+}
+
+
+static void
+handle_file_based_request(struct mg_connection *conn,
+ const char *path,
+ struct mg_file *file)
+{
+ if (!conn || !conn->dom_ctx) {
+ return;
+ }
+
+ if (0) {
+#if defined(USE_LUA)
+ } else if (match_prefix(
+ conn->dom_ctx->config[LUA_SERVER_PAGE_EXTENSIONS],
+ strlen(conn->dom_ctx->config[LUA_SERVER_PAGE_EXTENSIONS]),
+ path)
+ > 0) {
+ if (is_in_script_path(conn, path)) {
+ /* Lua server page: an SSI like page containing mostly plain
+ * html
+ * code
+ * plus some tags with server generated contents. */
+ handle_lsp_request(conn, path, file, NULL);
+ } else {
+ /* Script was in an illegal path */
+ mg_send_http_error(conn, 403, "%s", "Forbidden");
+ }
+
+ } else if (match_prefix(conn->dom_ctx->config[LUA_SCRIPT_EXTENSIONS],
+ strlen(
+ conn->dom_ctx->config[LUA_SCRIPT_EXTENSIONS]),
+ path)
+ > 0) {
+ if (is_in_script_path(conn, path)) {
+ /* Lua in-server module script: a CGI like script used to
+ * generate
+ * the
+ * entire reply. */
+ mg_exec_lua_script(conn, path, NULL);
+ } else {
+ /* Script was in an illegal path */
+ mg_send_http_error(conn, 403, "%s", "Forbidden");
+ }
+#endif
+#if defined(USE_DUKTAPE)
+ } else if (match_prefix(
+ conn->dom_ctx->config[DUKTAPE_SCRIPT_EXTENSIONS],
+ strlen(conn->dom_ctx->config[DUKTAPE_SCRIPT_EXTENSIONS]),
+ path)
+ > 0) {
+ if (is_in_script_path(conn, path)) {
+ /* Call duktape to generate the page */
+ mg_exec_duktape_script(conn, path);
+ } else {
+ /* Script was in an illegal path */
+ mg_send_http_error(conn, 403, "%s", "Forbidden");
+ }
+#endif
+#if !defined(NO_CGI)
+ } else if (match_prefix(conn->dom_ctx->config[CGI_EXTENSIONS],
+ strlen(conn->dom_ctx->config[CGI_EXTENSIONS]),
+ path)
+ > 0) {
+ if (is_in_script_path(conn, path)) {
+ /* CGI scripts may support all HTTP methods */
+ handle_cgi_request(conn, path);
+ } else {
+ /* Script was in an illegal path */
+ mg_send_http_error(conn, 403, "%s", "Forbidden");
+ }
+#endif /* !NO_CGI */
+ } else if (match_prefix(conn->dom_ctx->config[SSI_EXTENSIONS],
+ strlen(conn->dom_ctx->config[SSI_EXTENSIONS]),
+ path)
+ > 0) {
+ if (is_in_script_path(conn, path)) {
+ handle_ssi_file_request(conn, path, file);
+ } else {
+ /* Script was in an illegal path */
+ mg_send_http_error(conn, 403, "%s", "Forbidden");
+ }
+#if !defined(NO_CACHING)
+ } else if ((!conn->in_error_handler)
+ && is_not_modified(conn, &file->stat)) {
+ /* Send 304 "Not Modified" - this must not send any body data */
+ handle_not_modified_static_file_request(conn, file);
+#endif /* !NO_CACHING */
+ } else {
+ handle_static_file_request(conn, path, file, NULL, NULL);
+ }
+}
+
+
+static void
+close_all_listening_sockets(struct mg_context *ctx)
+{
+ unsigned int i;
+ if (!ctx) {
+ return;
+ }
+
+ for (i = 0; i < ctx->num_listening_sockets; i++) {
+ closesocket(ctx->listening_sockets[i].sock);
+ ctx->listening_sockets[i].sock = INVALID_SOCKET;
+ }
+ mg_free(ctx->listening_sockets);
+ ctx->listening_sockets = NULL;
+ mg_free(ctx->listening_socket_fds);
+ ctx->listening_socket_fds = NULL;
+}
+
+
+/* Valid listening port specification is: [ip_address:]port[s]
+ * Examples for IPv4: 80, 443s, 127.0.0.1:3128, 192.0.2.3:8080s
+ * Examples for IPv6: [::]:80, [::1]:80,
+ * [2001:0db8:7654:3210:FEDC:BA98:7654:3210]:443s
+ * see https://tools.ietf.org/html/rfc3513#section-2.2
+ * In order to bind to both, IPv4 and IPv6, you can either add
+ * both ports using 8080,[::]:8080, or the short form +8080.
+ * Both forms differ in detail: 8080,[::]:8080 create two sockets,
+ * one only accepting IPv4 the other only IPv6. +8080 creates
+ * one socket accepting IPv4 and IPv6. Depending on the IPv6
+ * environment, they might work differently, or might not work
+ * at all - it must be tested what options work best in the
+ * relevant network environment.
+ */
+static int
+parse_port_string(const struct vec *vec, struct socket *so, int *ip_version)
+{
+ unsigned int a, b, c, d, port;
+ int ch, len;
+ const char *cb;
+#if defined(USE_IPV6)
+ char buf[100] = {0};
+#endif
+
+ /* MacOS needs that. If we do not zero it, subsequent bind() will fail.
+ * Also, all-zeroes in the socket address means binding to all addresses
+ * for both IPv4 and IPv6 (INADDR_ANY and IN6ADDR_ANY_INIT). */
+ memset(so, 0, sizeof(*so));
+ so->lsa.sin.sin_family = AF_INET;
+ *ip_version = 0;
+
+ /* Initialize port and len as invalid. */
+ port = 0;
+ len = 0;
+
+ /* Test for different ways to format this string */
+ if (sscanf(vec->ptr, "%u.%u.%u.%u:%u%n", &a, &b, &c, &d, &port, &len)
+ == 5) {
+ /* Bind to a specific IPv4 address, e.g. 192.168.1.5:8080 */
+ so->lsa.sin.sin_addr.s_addr =
+ htonl((a << 24) | (b << 16) | (c << 8) | d);
+ so->lsa.sin.sin_port = htons((uint16_t)port);
+ *ip_version = 4;
+
+#if defined(USE_IPV6)
+ } else if (sscanf(vec->ptr, "[%49[^]]]:%u%n", buf, &port, &len) == 2
+ && mg_inet_pton(
+ AF_INET6, buf, &so->lsa.sin6, sizeof(so->lsa.sin6))) {
+ /* IPv6 address, examples: see above */
+ /* so->lsa.sin6.sin6_family = AF_INET6; already set by mg_inet_pton
+ */
+ so->lsa.sin6.sin6_port = htons((uint16_t)port);
+ *ip_version = 6;
+#endif
+
+ } else if ((vec->ptr[0] == '+')
+ && (sscanf(vec->ptr + 1, "%u%n", &port, &len) == 1)) {
+
+ /* Port is specified with a +, bind to IPv6 and IPv4, INADDR_ANY */
+ /* Add 1 to len for the + character we skipped before */
+ len++;
+
+#if defined(USE_IPV6)
+ /* Set socket family to IPv6, do not use IPV6_V6ONLY */
+ so->lsa.sin6.sin6_family = AF_INET6;
+ so->lsa.sin6.sin6_port = htons((uint16_t)port);
+ *ip_version = 4 + 6;
+#else
+ /* Bind to IPv4 only, since IPv6 is not built in. */
+ so->lsa.sin.sin_port = htons((uint16_t)port);
+ *ip_version = 4;
+#endif
+
+ } else if (sscanf(vec->ptr, "%u%n", &port, &len) == 1) {
+ /* If only port is specified, bind to IPv4, INADDR_ANY */
+ so->lsa.sin.sin_port = htons((uint16_t)port);
+ *ip_version = 4;
+
+ } else if ((cb = strchr(vec->ptr, ':')) != NULL) {
+ /* String could be a hostname. This check algotithm
+ * will only work for RFC 952 compliant hostnames,
+ * starting with a letter, containing only letters,
+ * digits and hyphen ('-'). Newer specs may allow
+ * more, but this is not guaranteed here, since it
+ * may interfere with rules for port option lists. */
+
+ /* According to RFC 1035, hostnames are restricted to 255 characters
+ * in total (63 between two dots). */
+ char hostname[256];
+ size_t hostnlen = (size_t)(cb - vec->ptr);
+
+ if (hostnlen >= sizeof(hostname)) {
+ /* This would be invalid in any case */
+ *ip_version = 0;
+ return 0;
+ }
+
+ memcpy(hostname, vec->ptr, hostnlen);
+ hostname[hostnlen] = 0;
+
+ if (mg_inet_pton(
+ AF_INET, vec->ptr, &so->lsa.sin, sizeof(so->lsa.sin))) {
+ if (sscanf(cb + 1, "%u%n", &port, &len) == 1) {
+ *ip_version = 4;
+ so->lsa.sin.sin_family = AF_INET;
+ so->lsa.sin.sin_port = htons((uint16_t)port);
+ len += (int)(hostnlen + 1);
+ } else {
+ port = 0;
+ len = 0;
+ }
+#if defined(USE_IPV6)
+ } else if (mg_inet_pton(AF_INET6,
+ vec->ptr,
+ &so->lsa.sin6,
+ sizeof(so->lsa.sin6))) {
+ if (sscanf(cb + 1, "%u%n", &port, &len) == 1) {
+ *ip_version = 6;
+ so->lsa.sin6.sin6_family = AF_INET6;
+ so->lsa.sin.sin_port = htons((uint16_t)port);
+ len += (int)(hostnlen + 1);
+ } else {
+ port = 0;
+ len = 0;
+ }
+#endif
+ }
+
+
+ } else {
+ /* Parsing failure. */
+ }
+
+ /* sscanf and the option splitting code ensure the following condition
+ */
+ if ((len < 0) && ((unsigned)len > (unsigned)vec->len)) {
+ *ip_version = 0;
+ return 0;
+ }
+ ch = vec->ptr[len]; /* Next character after the port number */
+ so->is_ssl = (ch == 's');
+ so->ssl_redir = (ch == 'r');
+
+ /* Make sure the port is valid and vector ends with 's', 'r' or ',' */
+ if (is_valid_port(port)
+ && ((ch == '\0') || (ch == 's') || (ch == 'r') || (ch == ','))) {
+ return 1;
+ }
+
+ /* Reset ip_version to 0 if there is an error */
+ *ip_version = 0;
+ return 0;
+}
+
+
+/* Is there any SSL port in use? */
+static int
+is_ssl_port_used(const char *ports)
+{
+ if (ports) {
+ /* There are several different allowed syntax variants:
+ * - "80" for a single port using every network interface
+ * - "localhost:80" for a single port using only localhost
+ * - "80,localhost:8080" for two ports, one bound to localhost
+ * - "80,127.0.0.1:8084,[::1]:8086" for three ports, one bound
+ * to IPv4 localhost, one to IPv6 localhost
+ * - "+80" use port 80 for IPv4 and IPv6
+ * - "+80r,+443s" port 80 (HTTP) is a redirect to port 443 (HTTPS),
+ * for both: IPv4 and IPv4
+ * - "+443s,localhost:8080" port 443 (HTTPS) for every interface,
+ * additionally port 8080 bound to localhost connections
+ *
+ * If we just look for 's' anywhere in the string, "localhost:80"
+ * will be detected as SSL (false positive).
+ * Looking for 's' after a digit may cause false positives in
+ * "my24service:8080".
+ * Looking from 's' backward if there are only ':' and numbers
+ * before will not work for "24service:8080" (non SSL, port 8080)
+ * or "24s" (SSL, port 24).
+ *
+ * Remark: Initially hostnames were not allowed to start with a
+ * digit (according to RFC 952), this was allowed later (RFC 1123,
+ * Section 2.1).
+ *
+ * To get this correct, the entire string must be parsed as a whole,
+ * reading it as a list element for element and parsing with an
+ * algorithm equivalent to parse_port_string.
+ *
+ * In fact, we use local interface names here, not arbitrary hostnames,
+ * so in most cases the only name will be "localhost".
+ *
+ * So, for now, we use this simple algorithm, that may still return
+ * a false positive in bizarre cases.
+ */
+ int i;
+ int portslen = (int)strlen(ports);
+ char prevIsNumber = 0;
+
+ for (i = 0; i < portslen; i++) {
+ if (prevIsNumber && (ports[i] == 's' || ports[i] == 'r')) {
+ return 1;
+ }
+ if (ports[i] >= '0' && ports[i] <= '9') {
+ prevIsNumber = 1;
+ } else {
+ prevIsNumber = 0;
+ }
+ }
+ }
+ return 0;
+}
+
+
+static int
+set_ports_option(struct mg_context *phys_ctx)
+{
+ const char *list;
+ int on = 1;
+#if defined(USE_IPV6)
+ int off = 0;
+#endif
+ struct vec vec;
+ struct socket so, *ptr;
+
+ struct mg_pollfd *pfd;
+ union usa usa;
+ socklen_t len;
+ int ip_version;
+
+ int portsTotal = 0;
+ int portsOk = 0;
+
+ if (!phys_ctx) {
+ return 0;
+ }
+
+ memset(&so, 0, sizeof(so));
+ memset(&usa, 0, sizeof(usa));
+ len = sizeof(usa);
+ list = phys_ctx->dd.config[LISTENING_PORTS];
+
+ while ((list = next_option(list, &vec, NULL)) != NULL) {
+
+ portsTotal++;
+
+ if (!parse_port_string(&vec, &so, &ip_version)) {
+ mg_cry_ctx_internal(
+ phys_ctx,
+ "%.*s: invalid port spec (entry %i). Expecting list of: %s",
+ (int)vec.len,
+ vec.ptr,
+ portsTotal,
+ "[IP_ADDRESS:]PORT[s|r]");
+ continue;
+ }
+
+#if !defined(NO_SSL)
+ if (so.is_ssl && phys_ctx->dd.ssl_ctx == NULL) {
+
+ mg_cry_ctx_internal(phys_ctx,
+ "Cannot add SSL socket (entry %i)",
+ portsTotal);
+ continue;
+ }
+#endif
+
+ if ((so.sock = socket(so.lsa.sa.sa_family, SOCK_STREAM, 6))
+ == INVALID_SOCKET) {
+
+ mg_cry_ctx_internal(phys_ctx,
+ "cannot create socket (entry %i)",
+ portsTotal);
+ continue;
+ }
+
+#if defined(_WIN32)
+ /* Windows SO_REUSEADDR lets many procs binds to a
+ * socket, SO_EXCLUSIVEADDRUSE makes the bind fail
+ * if someone already has the socket -- DTL */
+ /* NOTE: If SO_EXCLUSIVEADDRUSE is used,
+ * Windows might need a few seconds before
+ * the same port can be used again in the
+ * same process, so a short Sleep may be
+ * required between mg_stop and mg_start.
+ */
+ if (setsockopt(so.sock,
+ SOL_SOCKET,
+ SO_EXCLUSIVEADDRUSE,
+ (SOCK_OPT_TYPE)&on,
+ sizeof(on))
+ != 0) {
+
+ /* Set reuse option, but don't abort on errors. */
+ mg_cry_ctx_internal(
+ phys_ctx,
+ "cannot set socket option SO_EXCLUSIVEADDRUSE (entry %i)",
+ portsTotal);
+ }
+#else
+ if (setsockopt(so.sock,
+ SOL_SOCKET,
+ SO_REUSEADDR,
+ (SOCK_OPT_TYPE)&on,
+ sizeof(on))
+ != 0) {
+
+ /* Set reuse option, but don't abort on errors. */
+ mg_cry_ctx_internal(
+ phys_ctx,
+ "cannot set socket option SO_REUSEADDR (entry %i)",
+ portsTotal);
+ }
+#endif
+
+ if (ip_version > 4) {
+/* Could be 6 for IPv6 onlyor 10 (4+6) for IPv4+IPv6 */
+#if defined(USE_IPV6)
+ if (ip_version > 6) {
+ if (so.lsa.sa.sa_family == AF_INET6
+ && setsockopt(so.sock,
+ IPPROTO_IPV6,
+ IPV6_V6ONLY,
+ (void *)&off,
+ sizeof(off))
+ != 0) {
+
+ /* Set IPv6 only option, but don't abort on errors. */
+ mg_cry_ctx_internal(
+ phys_ctx,
+ "cannot set socket option IPV6_V6ONLY=off (entry %i)",
+ portsTotal);
+ }
+ } else {
+ if (so.lsa.sa.sa_family == AF_INET6
+ && setsockopt(so.sock,
+ IPPROTO_IPV6,
+ IPV6_V6ONLY,
+ (void *)&on,
+ sizeof(on))
+ != 0) {
+
+ /* Set IPv6 only option, but don't abort on errors. */
+ mg_cry_ctx_internal(
+ phys_ctx,
+ "cannot set socket option IPV6_V6ONLY=on (entry %i)",
+ portsTotal);
+ }
+ }
+#else
+ mg_cry_ctx_internal(phys_ctx, "%s", "IPv6 not available");
+ closesocket(so.sock);
+ so.sock = INVALID_SOCKET;
+ continue;
+#endif
+ }
+
+ if (so.lsa.sa.sa_family == AF_INET) {
+
+ len = sizeof(so.lsa.sin);
+ if (bind(so.sock, &so.lsa.sa, len) != 0) {
+ mg_cry_ctx_internal(phys_ctx,
+ "cannot bind to %.*s: %d (%s)",
+ (int)vec.len,
+ vec.ptr,
+ (int)ERRNO,
+ strerror(errno));
+ closesocket(so.sock);
+ so.sock = INVALID_SOCKET;
+ continue;
+ }
+ }
+#if defined(USE_IPV6)
+ else if (so.lsa.sa.sa_family == AF_INET6) {
+
+ len = sizeof(so.lsa.sin6);
+ if (bind(so.sock, &so.lsa.sa, len) != 0) {
+ mg_cry_ctx_internal(phys_ctx,
+ "cannot bind to IPv6 %.*s: %d (%s)",
+ (int)vec.len,
+ vec.ptr,
+ (int)ERRNO,
+ strerror(errno));
+ closesocket(so.sock);
+ so.sock = INVALID_SOCKET;
+ continue;
+ }
+ }
+#endif
+ else {
+ mg_cry_ctx_internal(
+ phys_ctx,
+ "cannot bind: address family not supported (entry %i)",
+ portsTotal);
+ closesocket(so.sock);
+ so.sock = INVALID_SOCKET;
+ continue;
+ }
+
+ if (listen(so.sock, SOMAXCONN) != 0) {
+
+ mg_cry_ctx_internal(phys_ctx,
+ "cannot listen to %.*s: %d (%s)",
+ (int)vec.len,
+ vec.ptr,
+ (int)ERRNO,
+ strerror(errno));
+ closesocket(so.sock);
+ so.sock = INVALID_SOCKET;
+ continue;
+ }
+
+ if ((getsockname(so.sock, &(usa.sa), &len) != 0)
+ || (usa.sa.sa_family != so.lsa.sa.sa_family)) {
+
+ int err = (int)ERRNO;
+ mg_cry_ctx_internal(phys_ctx,
+ "call to getsockname failed %.*s: %d (%s)",
+ (int)vec.len,
+ vec.ptr,
+ err,
+ strerror(errno));
+ closesocket(so.sock);
+ so.sock = INVALID_SOCKET;
+ continue;
+ }
+
+/* Update lsa port in case of random free ports */
+#if defined(USE_IPV6)
+ if (so.lsa.sa.sa_family == AF_INET6) {
+ so.lsa.sin6.sin6_port = usa.sin6.sin6_port;
+ } else
+#endif
+ {
+ so.lsa.sin.sin_port = usa.sin.sin_port;
+ }
+
+ if ((ptr = (struct socket *)
+ mg_realloc_ctx(phys_ctx->listening_sockets,
+ (phys_ctx->num_listening_sockets + 1)
+ * sizeof(phys_ctx->listening_sockets[0]),
+ phys_ctx))
+ == NULL) {
+
+ mg_cry_ctx_internal(phys_ctx, "%s", "Out of memory");
+ closesocket(so.sock);
+ so.sock = INVALID_SOCKET;
+ continue;
+ }
+
+ if ((pfd = (struct mg_pollfd *)
+ mg_realloc_ctx(phys_ctx->listening_socket_fds,
+ (phys_ctx->num_listening_sockets + 1)
+ * sizeof(phys_ctx->listening_socket_fds[0]),
+ phys_ctx))
+ == NULL) {
+
+ mg_cry_ctx_internal(phys_ctx, "%s", "Out of memory");
+ closesocket(so.sock);
+ so.sock = INVALID_SOCKET;
+ mg_free(ptr);
+ continue;
+ }
+
+ set_close_on_exec(so.sock, NULL, phys_ctx);
+ phys_ctx->listening_sockets = ptr;
+ phys_ctx->listening_sockets[phys_ctx->num_listening_sockets] = so;
+ phys_ctx->listening_socket_fds = pfd;
+ phys_ctx->num_listening_sockets++;
+ portsOk++;
+ }
+
+ if (portsOk != portsTotal) {
+ close_all_listening_sockets(phys_ctx);
+ portsOk = 0;
+ }
+
+ return portsOk;
+}
+
+
+static const char *
+header_val(const struct mg_connection *conn, const char *header)
+{
+ const char *header_value;
+
+ if ((header_value = mg_get_header(conn, header)) == NULL) {
+ return "-";
+ } else {
+ return header_value;
+ }
+}
+
+
+#if defined(MG_EXTERNAL_FUNCTION_log_access)
+static void log_access(const struct mg_connection *conn);
+#include "external_log_access.inl"
+#else
+
+static void
+log_access(const struct mg_connection *conn)
+{
+ const struct mg_request_info *ri;
+ struct mg_file fi;
+ char date[64], src_addr[IP_ADDR_STR_LEN];
+ struct tm *tm;
+
+ const char *referer;
+ const char *user_agent;
+
+ char buf[4096];
+
+ if (!conn || !conn->dom_ctx) {
+ return;
+ }
+
+ if (conn->dom_ctx->config[ACCESS_LOG_FILE] != NULL) {
+ if (mg_fopen(conn,
+ conn->dom_ctx->config[ACCESS_LOG_FILE],
+ MG_FOPEN_MODE_APPEND,
+ &fi)
+ == 0) {
+ fi.access.fp = NULL;
+ }
+ } else {
+ fi.access.fp = NULL;
+ }
+
+ /* Log is written to a file and/or a callback. If both are not set,
+ * executing the rest of the function is pointless. */
+ if ((fi.access.fp == NULL)
+ && (conn->phys_ctx->callbacks.log_access == NULL)) {
+ return;
+ }
+
+ tm = localtime(&conn->conn_birth_time);
+ if (tm != NULL) {
+ strftime(date, sizeof(date), "%d/%b/%Y:%H:%M:%S %z", tm);
+ } else {
+ mg_strlcpy(date, "01/Jan/1970:00:00:00 +0000", sizeof(date));
+ date[sizeof(date) - 1] = '\0';
+ }
+
+ ri = &conn->request_info;
+
+ sockaddr_to_string(src_addr, sizeof(src_addr), &conn->client.rsa);
+ referer = header_val(conn, "Referer");
+ user_agent = header_val(conn, "User-Agent");
+
+ mg_snprintf(conn,
+ NULL, /* Ignore truncation in access log */
+ buf,
+ sizeof(buf),
+ "%s - %s [%s] \"%s %s%s%s HTTP/%s\" %d %" INT64_FMT " %s %s",
+ src_addr,
+ (ri->remote_user == NULL) ? "-" : ri->remote_user,
+ date,
+ ri->request_method ? ri->request_method : "-",
+ ri->request_uri ? ri->request_uri : "-",
+ ri->query_string ? "?" : "",
+ ri->query_string ? ri->query_string : "",
+ ri->http_version,
+ conn->status_code,
+ conn->num_bytes_sent,
+ referer,
+ user_agent);
+
+ if (conn->phys_ctx->callbacks.log_access) {
+ conn->phys_ctx->callbacks.log_access(conn, buf);
+ }
+
+ if (fi.access.fp) {
+ int ok = 1;
+ flockfile(fi.access.fp);
+ if (fprintf(fi.access.fp, "%s\n", buf) < 1) {
+ ok = 0;
+ }
+ if (fflush(fi.access.fp) != 0) {
+ ok = 0;
+ }
+ funlockfile(fi.access.fp);
+ if (mg_fclose(&fi.access) != 0) {
+ ok = 0;
+ }
+ if (!ok) {
+ mg_cry_internal(conn,
+ "Error writing log file %s",
+ conn->dom_ctx->config[ACCESS_LOG_FILE]);
+ }
+ }
+}
+
+#endif /* Externally provided function */
+
+
+/* Verify given socket address against the ACL.
+ * Return -1 if ACL is malformed, 0 if address is disallowed, 1 if allowed.
+ */
+static int
+check_acl(struct mg_context *phys_ctx, uint32_t remote_ip)
+{
+ int allowed, flag;
+ uint32_t net, mask;
+ struct vec vec;
+
+ if (phys_ctx) {
+ const char *list = phys_ctx->dd.config[ACCESS_CONTROL_LIST];
+
+ /* If any ACL is set, deny by default */
+ allowed = (list == NULL) ? '+' : '-';
+
+ while ((list = next_option(list, &vec, NULL)) != NULL) {
+ flag = vec.ptr[0];
+ if ((flag != '+' && flag != '-')
+ || (parse_net(&vec.ptr[1], &net, &mask) == 0)) {
+ mg_cry_ctx_internal(phys_ctx,
+ "%s: subnet must be [+|-]x.x.x.x[/x]",
+ __func__);
+ return -1;
+ }
+
+ if (net == (remote_ip & mask)) {
+ allowed = flag;
+ }
+ }
+
+ return allowed == '+';
+ }
+ return -1;
+}
+
+
+#if !defined(_WIN32)
+static int
+set_uid_option(struct mg_context *phys_ctx)
+{
+ int success = 0;
+
+ if (phys_ctx) {
+ /* We are currently running as curr_uid. */
+ const uid_t curr_uid = getuid();
+ /* If set, we want to run as run_as_user. */
+ const char *run_as_user = phys_ctx->dd.config[RUN_AS_USER];
+ const struct passwd *to_pw = NULL;
+
+ if (run_as_user != NULL && (to_pw = getpwnam(run_as_user)) == NULL) {
+ /* run_as_user does not exist on the system. We can't proceed
+ * further. */
+ mg_cry_ctx_internal(phys_ctx,
+ "%s: unknown user [%s]",
+ __func__,
+ run_as_user);
+ } else if (run_as_user == NULL || curr_uid == to_pw->pw_uid) {
+ /* There was either no request to change user, or we're already
+ * running as run_as_user. Nothing else to do.
+ */
+ success = 1;
+ } else {
+ /* Valid change request. */
+ if (setgid(to_pw->pw_gid) == -1) {
+ mg_cry_ctx_internal(phys_ctx,
+ "%s: setgid(%s): %s",
+ __func__,
+ run_as_user,
+ strerror(errno));
+ } else if (setgroups(0, NULL) == -1) {
+ mg_cry_ctx_internal(phys_ctx,
+ "%s: setgroups(): %s",
+ __func__,
+ strerror(errno));
+ } else if (setuid(to_pw->pw_uid) == -1) {
+ mg_cry_ctx_internal(phys_ctx,
+ "%s: setuid(%s): %s",
+ __func__,
+ run_as_user,
+ strerror(errno));
+ } else {
+ success = 1;
+ }
+ }
+ }
+
+ return success;
+}
+#endif /* !_WIN32 */
+
+
+static void
+tls_dtor(void *key)
+{
+ struct mg_workerTLS *tls = (struct mg_workerTLS *)key;
+ /* key == pthread_getspecific(sTlsKey); */
+
+ if (tls) {
+ if (tls->is_master == 2) {
+ tls->is_master = -3; /* Mark memory as dead */
+ mg_free(tls);
+ }
+ }
+ pthread_setspecific(sTlsKey, NULL);
+}
+
+
+#if !defined(NO_SSL)
+
+static int ssl_use_pem_file(struct mg_context *phys_ctx,
+ struct mg_domain_context *dom_ctx,
+ const char *pem,
+ const char *chain);
+static const char *ssl_error(void);
+
+
+static int
+refresh_trust(struct mg_connection *conn)
+{
+ static int reload_lock = 0;
+ static long int data_check = 0;
+ volatile int *p_reload_lock = (volatile int *)&reload_lock;
+
+ struct stat cert_buf;
+ long int t;
+ const char *pem;
+ const char *chain;
+ int should_verify_peer;
+
+ if ((pem = conn->dom_ctx->config[SSL_CERTIFICATE]) == NULL) {
+ /* If peem is NULL and conn->phys_ctx->callbacks.init_ssl is not,
+ * refresh_trust still can not work. */
+ return 0;
+ }
+ chain = conn->dom_ctx->config[SSL_CERTIFICATE_CHAIN];
+ if (chain == NULL) {
+ /* pem is not NULL here */
+ chain = pem;
+ }
+ if (*chain == 0) {
+ chain = NULL;
+ }
+
+ t = data_check;
+ if (stat(pem, &cert_buf) != -1) {
+ t = (long int)cert_buf.st_mtime;
+ }
+
+ if (data_check != t) {
+ data_check = t;
+
+ should_verify_peer = 0;
+ if (conn->dom_ctx->config[SSL_DO_VERIFY_PEER] != NULL) {
+ if (mg_strcasecmp(conn->dom_ctx->config[SSL_DO_VERIFY_PEER], "yes")
+ == 0) {
+ should_verify_peer = 1;
+ } else if (mg_strcasecmp(conn->dom_ctx->config[SSL_DO_VERIFY_PEER],
+ "optional")
+ == 0) {
+ should_verify_peer = 1;
+ }
+ }
+
+ if (should_verify_peer) {
+ char *ca_path = conn->dom_ctx->config[SSL_CA_PATH];
+ char *ca_file = conn->dom_ctx->config[SSL_CA_FILE];
+ if (SSL_CTX_load_verify_locations(conn->dom_ctx->ssl_ctx,
+ ca_file,
+ ca_path)
+ != 1) {
+ mg_cry_ctx_internal(
+ conn->phys_ctx,
+ "SSL_CTX_load_verify_locations error: %s "
+ "ssl_verify_peer requires setting "
+ "either ssl_ca_path or ssl_ca_file. Is any of them "
+ "present in "
+ "the .conf file?",
+ ssl_error());
+ return 0;
+ }
+ }
+
+ if (1 == mg_atomic_inc(p_reload_lock)) {
+ if (ssl_use_pem_file(conn->phys_ctx, conn->dom_ctx, pem, chain)
+ == 0) {
+ return 0;
+ }
+ *p_reload_lock = 0;
+ }
+ }
+ /* lock while cert is reloading */
+ while (*p_reload_lock) {
+ sleep(1);
+ }
+
+ return 1;
+}
+
+#if defined(OPENSSL_API_1_1)
+#else
+static pthread_mutex_t *ssl_mutexes;
+#endif /* OPENSSL_API_1_1 */
+
+static int
+sslize(struct mg_connection *conn,
+ SSL_CTX *s,
+ int (*func)(SSL *),
+ volatile int *stop_server,
+ const struct mg_client_options *client_options)
+{
+ int ret, err;
+ int short_trust;
+ unsigned timeout = 1024;
+ unsigned i;
+
+ if (!conn) {
+ return 0;
+ }
+
+ short_trust =
+ (conn->dom_ctx->config[SSL_SHORT_TRUST] != NULL)
+ && (mg_strcasecmp(conn->dom_ctx->config[SSL_SHORT_TRUST], "yes") == 0);
+
+ if (short_trust) {
+ int trust_ret = refresh_trust(conn);
+ if (!trust_ret) {
+ return trust_ret;
+ }
+ }
+
+ conn->ssl = SSL_new(s);
+ if (conn->ssl == NULL) {
+ return 0;
+ }
+ SSL_set_app_data(conn->ssl, (char *)conn);
+
+ ret = SSL_set_fd(conn->ssl, conn->client.sock);
+ if (ret != 1) {
+ err = SSL_get_error(conn->ssl, ret);
+ mg_cry_internal(conn, "SSL error %i, destroying SSL context", err);
+ SSL_free(conn->ssl);
+ conn->ssl = NULL;
+ OPENSSL_REMOVE_THREAD_STATE();
+ return 0;
+ }
+
+ if (client_options) {
+ if (client_options->host_name) {
+ SSL_set_tlsext_host_name(conn->ssl, client_options->host_name);
+ }
+ }
+
+ /* Reuse the request timeout for the SSL_Accept/SSL_connect timeout */
+ if (conn->dom_ctx->config[REQUEST_TIMEOUT]) {
+ /* NOTE: The loop below acts as a back-off, so we can end
+ * up sleeping for more (or less) than the REQUEST_TIMEOUT. */
+ timeout = atoi(conn->dom_ctx->config[REQUEST_TIMEOUT]);
+ }
+
+ /* SSL functions may fail and require to be called again:
+ * see https://www.openssl.org/docs/manmaster/ssl/SSL_get_error.html
+ * Here "func" could be SSL_connect or SSL_accept. */
+ for (i = 0; i <= timeout; i += 50) {
+ ret = func(conn->ssl);
+ if (ret != 1) {
+ err = SSL_get_error(conn->ssl, ret);
+ if ((err == SSL_ERROR_WANT_CONNECT)
+ || (err == SSL_ERROR_WANT_ACCEPT)
+ || (err == SSL_ERROR_WANT_READ) || (err == SSL_ERROR_WANT_WRITE)
+ || (err == SSL_ERROR_WANT_X509_LOOKUP)) {
+ if (*stop_server) {
+ /* Don't wait if the server is going to be stopped. */
+ break;
+ }
+ if (err == SSL_ERROR_WANT_X509_LOOKUP) {
+ /* Simply retry the function call. */
+ mg_sleep(50);
+ } else {
+ /* Need to retry the function call "later".
+ * See https://linux.die.net/man/3/ssl_get_error
+ * This is typical for non-blocking sockets. */
+ struct mg_pollfd pfd;
+ pfd.fd = conn->client.sock;
+ pfd.events = ((err == SSL_ERROR_WANT_CONNECT)
+ || (err == SSL_ERROR_WANT_WRITE))
+ ? POLLOUT
+ : POLLIN;
+ mg_poll(&pfd, 1, 50, stop_server);
+ }
+
+ } else if (err == SSL_ERROR_SYSCALL) {
+ /* This is an IO error. Look at errno. */
+ err = errno;
+ mg_cry_internal(conn, "SSL syscall error %i", err);
+ break;
+
+ } else {
+ /* This is an SSL specific error, e.g. SSL_ERROR_SSL */
+ mg_cry_internal(conn, "sslize error: %s", ssl_error());
+ break;
+ }
+ ERR_clear_error();
+
+ } else {
+ /* success */
+ break;
+ }
+ }
+
+ if (ret != 1) {
+ SSL_free(conn->ssl);
+ conn->ssl = NULL;
+ OPENSSL_REMOVE_THREAD_STATE();
+ return 0;
+ }
+
+ return 1;
+}
+
+
+/* Return OpenSSL error message (from CRYPTO lib) */
+static const char *
+ssl_error(void)
+{
+ unsigned long err;
+ err = ERR_get_error();
+ return ((err == 0) ? "" : ERR_error_string(err, NULL));
+}
+
+
+static int
+hexdump2string(void *mem, int memlen, char *buf, int buflen)
+{
+ int i;
+ const char hexdigit[] = "0123456789abcdef";
+
+ if ((memlen <= 0) || (buflen <= 0)) {
+ return 0;
+ }
+ if (buflen < (3 * memlen)) {
+ return 0;
+ }
+
+ for (i = 0; i < memlen; i++) {
+ if (i > 0) {
+ buf[3 * i - 1] = ' ';
+ }
+ buf[3 * i] = hexdigit[(((uint8_t *)mem)[i] >> 4) & 0xF];
+ buf[3 * i + 1] = hexdigit[((uint8_t *)mem)[i] & 0xF];
+ }
+ buf[3 * memlen - 1] = 0;
+
+ return 1;
+}
+
+
+static void
+ssl_get_client_cert_info(struct mg_connection *conn)
+{
+ X509 *cert = SSL_get_peer_certificate(conn->ssl);
+ if (cert) {
+ char str_subject[1024];
+ char str_issuer[1024];
+ char str_finger[1024];
+ unsigned char buf[256];
+ char *str_serial = NULL;
+ unsigned int ulen;
+ int ilen;
+ unsigned char *tmp_buf;
+ unsigned char *tmp_p;
+
+ /* Handle to algorithm used for fingerprint */
+ const EVP_MD *digest = EVP_get_digestbyname("sha1");
+
+ /* Get Subject and issuer */
+ X509_NAME *subj = X509_get_subject_name(cert);
+ X509_NAME *iss = X509_get_issuer_name(cert);
+
+ /* Get serial number */
+ ASN1_INTEGER *serial = X509_get_serialNumber(cert);
+
+ /* Translate serial number to a hex string */
+ BIGNUM *serial_bn = ASN1_INTEGER_to_BN(serial, NULL);
+ str_serial = BN_bn2hex(serial_bn);
+ BN_free(serial_bn);
+
+ /* Translate subject and issuer to a string */
+ (void)X509_NAME_oneline(subj, str_subject, (int)sizeof(str_subject));
+ (void)X509_NAME_oneline(iss, str_issuer, (int)sizeof(str_issuer));
+
+ /* Calculate SHA1 fingerprint and store as a hex string */
+ ulen = 0;
+
+ /* ASN1_digest is deprecated. Do the calculation manually,
+ * using EVP_Digest. */
+ ilen = i2d_X509(cert, NULL);
+ tmp_buf = (ilen > 0)
+ ? (unsigned char *)mg_malloc_ctx((unsigned)ilen + 1,
+ conn->phys_ctx)
+ : NULL;
+ if (tmp_buf) {
+ tmp_p = tmp_buf;
+ (void)i2d_X509(cert, &tmp_p);
+ if (!EVP_Digest(
+ tmp_buf, (unsigned)ilen, buf, &ulen, digest, NULL)) {
+ ulen = 0;
+ }
+ mg_free(tmp_buf);
+ }
+
+ if (!hexdump2string(
+ buf, (int)ulen, str_finger, (int)sizeof(str_finger))) {
+ *str_finger = 0;
+ }
+
+ conn->request_info.client_cert = (struct mg_client_cert *)
+ mg_malloc_ctx(sizeof(struct mg_client_cert), conn->phys_ctx);
+ if (conn->request_info.client_cert) {
+ conn->request_info.client_cert->peer_cert = (void *)cert;
+ conn->request_info.client_cert->subject =
+ mg_strdup_ctx(str_subject, conn->phys_ctx);
+ conn->request_info.client_cert->issuer =
+ mg_strdup_ctx(str_issuer, conn->phys_ctx);
+ conn->request_info.client_cert->serial =
+ mg_strdup_ctx(str_serial, conn->phys_ctx);
+ conn->request_info.client_cert->finger =
+ mg_strdup_ctx(str_finger, conn->phys_ctx);
+ } else {
+ mg_cry_internal(conn,
+ "%s",
+ "Out of memory: Cannot allocate memory for client "
+ "certificate");
+ }
+
+ /* Strings returned from bn_bn2hex must be freed using OPENSSL_free,
+ * see https://linux.die.net/man/3/bn_bn2hex */
+ OPENSSL_free(str_serial);
+ }
+}
+
+
+#if defined(OPENSSL_API_1_1)
+#else
+static void
+ssl_locking_callback(int mode, int mutex_num, const char *file, int line)
+{
+ (void)line;
+ (void)file;
+
+ if (mode & 1) {
+ /* 1 is CRYPTO_LOCK */
+ (void)pthread_mutex_lock(&ssl_mutexes[mutex_num]);
+ } else {
+ (void)pthread_mutex_unlock(&ssl_mutexes[mutex_num]);
+ }
+}
+#endif /* OPENSSL_API_1_1 */
+
+
+#if !defined(NO_SSL_DL)
+static void *
+load_dll(char *ebuf, size_t ebuf_len, const char *dll_name, struct ssl_func *sw)
+{
+ union {
+ void *p;
+ void (*fp)(void);
+ } u;
+ void *dll_handle;
+ struct ssl_func *fp;
+ int ok;
+ int truncated = 0;
+
+ if ((dll_handle = dlopen(dll_name, RTLD_LAZY)) == NULL) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s: cannot load %s",
+ __func__,
+ dll_name);
+ return NULL;
+ }
+
+ ok = 1;
+ for (fp = sw; fp->name != NULL; fp++) {
+#if defined(_WIN32)
+ /* GetProcAddress() returns pointer to function */
+ u.fp = (void (*)(void))dlsym(dll_handle, fp->name);
+#else
+ /* dlsym() on UNIX returns void *. ISO C forbids casts of data
+ * pointers to function pointers. We need to use a union to make a
+ * cast. */
+ u.p = dlsym(dll_handle, fp->name);
+#endif /* _WIN32 */
+ if (u.fp == NULL) {
+ if (ok) {
+ mg_snprintf(NULL,
+ &truncated,
+ ebuf,
+ ebuf_len,
+ "%s: %s: cannot find %s",
+ __func__,
+ dll_name,
+ fp->name);
+ ok = 0;
+ } else {
+ size_t cur_len = strlen(ebuf);
+ if (!truncated) {
+ mg_snprintf(NULL,
+ &truncated,
+ ebuf + cur_len,
+ ebuf_len - cur_len - 3,
+ ", %s",
+ fp->name);
+ if (truncated) {
+ /* If truncated, add "..." */
+ strcat(ebuf, "...");
+ }
+ }
+ }
+ /* Debug:
+ * printf("Missing function: %s\n", fp->name); */
+ } else {
+ fp->ptr = u.fp;
+ }
+ }
+
+ if (!ok) {
+ (void)dlclose(dll_handle);
+ return NULL;
+ }
+
+ return dll_handle;
+}
+
+
+static void *ssllib_dll_handle; /* Store the ssl library handle. */
+static void *cryptolib_dll_handle; /* Store the crypto library handle. */
+
+#endif /* NO_SSL_DL */
+
+
+#if defined(SSL_ALREADY_INITIALIZED)
+static int cryptolib_users = 1; /* Reference counter for crypto library. */
+#else
+static int cryptolib_users = 0; /* Reference counter for crypto library. */
+#endif
+
+
+static int
+initialize_ssl(char *ebuf, size_t ebuf_len)
+{
+#if defined(OPENSSL_API_1_1)
+ if (ebuf_len > 0) {
+ ebuf[0] = 0;
+ }
+
+#if !defined(NO_SSL_DL)
+ if (!cryptolib_dll_handle) {
+ cryptolib_dll_handle = load_dll(ebuf, ebuf_len, CRYPTO_LIB, crypto_sw);
+ if (!cryptolib_dll_handle) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s: error loading library %s",
+ __func__,
+ CRYPTO_LIB);
+ DEBUG_TRACE("%s", ebuf);
+ return 0;
+ }
+ }
+#endif /* NO_SSL_DL */
+
+ if (mg_atomic_inc(&cryptolib_users) > 1) {
+ return 1;
+ }
+
+#else /* not OPENSSL_API_1_1 */
+ int i, num_locks;
+ size_t size;
+
+ if (ebuf_len > 0) {
+ ebuf[0] = 0;
+ }
+
+#if !defined(NO_SSL_DL)
+ if (!cryptolib_dll_handle) {
+ cryptolib_dll_handle = load_dll(ebuf, ebuf_len, CRYPTO_LIB, crypto_sw);
+ if (!cryptolib_dll_handle) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s: error loading library %s",
+ __func__,
+ CRYPTO_LIB);
+ DEBUG_TRACE("%s", ebuf);
+ return 0;
+ }
+ }
+#endif /* NO_SSL_DL */
+
+ if (mg_atomic_inc(&cryptolib_users) > 1) {
+ return 1;
+ }
+
+ /* Initialize locking callbacks, needed for thread safety.
+ * http://www.openssl.org/support/faq.html#PROG1
+ */
+ num_locks = CRYPTO_num_locks();
+ if (num_locks < 0) {
+ num_locks = 0;
+ }
+ size = sizeof(pthread_mutex_t) * ((size_t)(num_locks));
+
+ /* allocate mutex array, if required */
+ if (num_locks == 0) {
+ /* No mutex array required */
+ ssl_mutexes = NULL;
+ } else {
+ /* Mutex array required - allocate it */
+ ssl_mutexes = (pthread_mutex_t *)mg_malloc(size);
+
+ /* Check OOM */
+ if (ssl_mutexes == NULL) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s: cannot allocate mutexes: %s",
+ __func__,
+ ssl_error());
+ DEBUG_TRACE("%s", ebuf);
+ return 0;
+ }
+
+ /* initialize mutex array */
+ for (i = 0; i < num_locks; i++) {
+ if (0 != pthread_mutex_init(&ssl_mutexes[i], &pthread_mutex_attr)) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s: error initializing mutex %i of %i",
+ __func__,
+ i,
+ num_locks);
+ DEBUG_TRACE("%s", ebuf);
+ mg_free(ssl_mutexes);
+ return 0;
+ }
+ }
+ }
+
+ CRYPTO_set_locking_callback(&ssl_locking_callback);
+ CRYPTO_set_id_callback(&mg_current_thread_id);
+#endif /* OPENSSL_API_1_1 */
+
+#if !defined(NO_SSL_DL)
+ if (!ssllib_dll_handle) {
+ ssllib_dll_handle = load_dll(ebuf, ebuf_len, SSL_LIB, ssl_sw);
+ if (!ssllib_dll_handle) {
+#if !defined(OPENSSL_API_1_1)
+ mg_free(ssl_mutexes);
+#endif
+ DEBUG_TRACE("%s", ebuf);
+ return 0;
+ }
+ }
+#endif /* NO_SSL_DL */
+
+#if defined(OPENSSL_API_1_1)
+ /* Initialize SSL library */
+ OPENSSL_init_ssl(0, NULL);
+ OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
+ | OPENSSL_INIT_LOAD_CRYPTO_STRINGS,
+ NULL);
+#else
+ /* Initialize SSL library */
+ SSL_library_init();
+ SSL_load_error_strings();
+#endif
+
+ return 1;
+}
+
+
+static int
+ssl_use_pem_file(struct mg_context *phys_ctx,
+ struct mg_domain_context *dom_ctx,
+ const char *pem,
+ const char *chain)
+{
+ if (SSL_CTX_use_certificate_file(dom_ctx->ssl_ctx, pem, 1) == 0) {
+ mg_cry_ctx_internal(phys_ctx,
+ "%s: cannot open certificate file %s: %s",
+ __func__,
+ pem,
+ ssl_error());
+ return 0;
+ }
+
+ /* could use SSL_CTX_set_default_passwd_cb_userdata */
+ if (SSL_CTX_use_PrivateKey_file(dom_ctx->ssl_ctx, pem, 1) == 0) {
+ mg_cry_ctx_internal(phys_ctx,
+ "%s: cannot open private key file %s: %s",
+ __func__,
+ pem,
+ ssl_error());
+ return 0;
+ }
+
+ if (SSL_CTX_check_private_key(dom_ctx->ssl_ctx) == 0) {
+ mg_cry_ctx_internal(phys_ctx,
+ "%s: certificate and private key do not match: %s",
+ __func__,
+ pem);
+ return 0;
+ }
+
+ /* In contrast to OpenSSL, wolfSSL does not support certificate
+ * chain files that contain private keys and certificates in
+ * SSL_CTX_use_certificate_chain_file.
+ * The CivetWeb-Server used pem-Files that contained both information.
+ * In order to make wolfSSL work, it is split in two files.
+ * One file that contains key and certificate used by the server and
+ * an optional chain file for the ssl stack.
+ */
+ if (chain) {
+ if (SSL_CTX_use_certificate_chain_file(dom_ctx->ssl_ctx, chain) == 0) {
+ mg_cry_ctx_internal(phys_ctx,
+ "%s: cannot use certificate chain file %s: %s",
+ __func__,
+ chain,
+ ssl_error());
+ return 0;
+ }
+ }
+ return 1;
+}
+
+
+#if defined(OPENSSL_API_1_1)
+static unsigned long
+ssl_get_protocol(int version_id)
+{
+ long unsigned ret = (long unsigned)SSL_OP_ALL;
+ if (version_id > 0)
+ ret |= SSL_OP_NO_SSLv2;
+ if (version_id > 1)
+ ret |= SSL_OP_NO_SSLv3;
+ if (version_id > 2)
+ ret |= SSL_OP_NO_TLSv1;
+ if (version_id > 3)
+ ret |= SSL_OP_NO_TLSv1_1;
+ if (version_id > 4)
+ ret |= SSL_OP_NO_TLSv1_2;
+#if defined(SSL_OP_NO_TLSv1_3)
+ if (version_id > 5)
+ ret |= SSL_OP_NO_TLSv1_3;
+#endif
+ return ret;
+}
+#else
+static long
+ssl_get_protocol(int version_id)
+{
+ long ret = (long)SSL_OP_ALL;
+ if (version_id > 0)
+ ret |= SSL_OP_NO_SSLv2;
+ if (version_id > 1)
+ ret |= SSL_OP_NO_SSLv3;
+ if (version_id > 2)
+ ret |= SSL_OP_NO_TLSv1;
+ if (version_id > 3)
+ ret |= SSL_OP_NO_TLSv1_1;
+ if (version_id > 4)
+ ret |= SSL_OP_NO_TLSv1_2;
+#if defined(SSL_OP_NO_TLSv1_3)
+ if (version_id > 5)
+ ret |= SSL_OP_NO_TLSv1_3;
+#endif
+ return ret;
+}
+#endif /* OPENSSL_API_1_1 */
+
+
+/* SSL callback documentation:
+ * https://www.openssl.org/docs/man1.1.0/ssl/SSL_set_info_callback.html
+ * https://wiki.openssl.org/index.php/Manual:SSL_CTX_set_info_callback(3)
+ * https://linux.die.net/man/3/ssl_set_info_callback */
+/* Note: There is no "const" for the first argument in the documentation
+ * examples, however some (maybe most, but not all) headers of OpenSSL versions
+ * / OpenSSL compatibility layers have it. Having a different definition will
+ * cause a warning in C and an error in C++. Use "const SSL *", while
+ * automatical conversion from "SSL *" works for all compilers, but not other
+ * way around */
+static void
+ssl_info_callback(const SSL *ssl, int what, int ret)
+{
+ (void)ret;
+
+ if (what & SSL_CB_HANDSHAKE_START) {
+ SSL_get_app_data(ssl);
+ }
+ if (what & SSL_CB_HANDSHAKE_DONE) {
+ /* TODO: check for openSSL 1.1 */
+ //#define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001
+ // ssl->s3->flags |= SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS;
+ }
+}
+
+
+static int
+ssl_servername_callback(SSL *ssl, int *ad, void *arg)
+{
+ struct mg_context *ctx = (struct mg_context *)arg;
+ struct mg_domain_context *dom =
+ (struct mg_domain_context *)ctx ? &(ctx->dd) : NULL;
+
+#if defined(GCC_DIAGNOSTIC)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wcast-align"
+#endif /* defined(GCC_DIAGNOSTIC) */
+
+ /* We used an aligned pointer in SSL_set_app_data */
+ struct mg_connection *conn = (struct mg_connection *)SSL_get_app_data(ssl);
+
+#if defined(GCC_DIAGNOSTIC)
+#pragma GCC diagnostic pop
+#endif /* defined(GCC_DIAGNOSTIC) */
+
+ const char *servername = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
+
+ (void)ad;
+
+ if ((ctx == NULL) || (conn->phys_ctx == ctx)) {
+ DEBUG_TRACE("%s", "internal error - assertion failed");
+ return SSL_TLSEXT_ERR_NOACK;
+ }
+
+ /* Old clients (Win XP) will not support SNI. Then, there
+ * is no server name available in the request - we can
+ * only work with the default certificate.
+ * Multiple HTTPS hosts on one IP+port are only possible
+ * with a certificate containing all alternative names.
+ */
+ if ((servername == NULL) || (*servername == 0)) {
+ DEBUG_TRACE("%s", "SSL connection not supporting SNI");
+ conn->dom_ctx = &(ctx->dd);
+ SSL_set_SSL_CTX(ssl, conn->dom_ctx->ssl_ctx);
+ return SSL_TLSEXT_ERR_NOACK;
+ }
+
+ DEBUG_TRACE("TLS connection to host %s", servername);
+
+ while (dom) {
+ if (!mg_strcasecmp(servername, dom->config[AUTHENTICATION_DOMAIN])) {
+
+ /* Found matching domain */
+ DEBUG_TRACE("TLS domain %s found",
+ dom->config[AUTHENTICATION_DOMAIN]);
+ SSL_set_SSL_CTX(ssl, dom->ssl_ctx);
+ conn->dom_ctx = dom;
+ return SSL_TLSEXT_ERR_OK;
+ }
+ dom = dom->next;
+ }
+
+ /* Default domain */
+ DEBUG_TRACE("TLS default domain %s used",
+ ctx->dd.config[AUTHENTICATION_DOMAIN]);
+ conn->dom_ctx = &(ctx->dd);
+ SSL_set_SSL_CTX(ssl, conn->dom_ctx->ssl_ctx);
+ return SSL_TLSEXT_ERR_OK;
+}
+
+
+/* Setup SSL CTX as required by CivetWeb */
+static int
+init_ssl_ctx_impl(struct mg_context *phys_ctx,
+ struct mg_domain_context *dom_ctx,
+ const char *pem,
+ const char *chain)
+{
+ int callback_ret;
+ int should_verify_peer;
+ int peer_certificate_optional;
+ const char *ca_path;
+ const char *ca_file;
+ int use_default_verify_paths;
+ int verify_depth;
+ struct timespec now_mt;
+ md5_byte_t ssl_context_id[16];
+ md5_state_t md5state;
+ int protocol_ver;
+
+#if defined(OPENSSL_API_1_1)
+ if ((dom_ctx->ssl_ctx = SSL_CTX_new(TLS_server_method())) == NULL) {
+ mg_cry_ctx_internal(phys_ctx,
+ "SSL_CTX_new (server) error: %s",
+ ssl_error());
+ return 0;
+ }
+#else
+ if ((dom_ctx->ssl_ctx = SSL_CTX_new(SSLv23_server_method())) == NULL) {
+ mg_cry_ctx_internal(phys_ctx,
+ "SSL_CTX_new (server) error: %s",
+ ssl_error());
+ return 0;
+ }
+#endif /* OPENSSL_API_1_1 */
+
+ SSL_CTX_clear_options(dom_ctx->ssl_ctx,
+ SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_NO_TLSv1
+ | SSL_OP_NO_TLSv1_1);
+ protocol_ver = atoi(dom_ctx->config[SSL_PROTOCOL_VERSION]);
+ SSL_CTX_set_options(dom_ctx->ssl_ctx, ssl_get_protocol(protocol_ver));
+ SSL_CTX_set_options(dom_ctx->ssl_ctx, SSL_OP_SINGLE_DH_USE);
+ SSL_CTX_set_options(dom_ctx->ssl_ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
+ SSL_CTX_set_options(dom_ctx->ssl_ctx,
+ SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);
+ SSL_CTX_set_options(dom_ctx->ssl_ctx, SSL_OP_NO_COMPRESSION);
+
+#if defined(SSL_OP_NO_RENEGOTIATION)
+ SSL_CTX_set_options(dom_ctx->ssl_ctx, SSL_OP_NO_RENEGOTIATION);
+#endif
+
+#if !defined(NO_SSL_DL)
+ SSL_CTX_set_ecdh_auto(dom_ctx->ssl_ctx, 1);
+#endif /* NO_SSL_DL */
+
+ /* In SSL documentation examples callback defined without const specifier
+ * 'void (*)(SSL *, int, int)' See:
+ * https://www.openssl.org/docs/man1.0.2/ssl/ssl.html
+ * https://www.openssl.org/docs/man1.1.0/ssl/ssl.html
+ * But in the source code const SSL is used:
+ * 'void (*)(const SSL *, int, int)' See:
+ * https://github.com/openssl/openssl/blob/1d97c8435171a7af575f73c526d79e1ef0ee5960/ssl/ssl.h#L1173
+ * Problem about wrong documentation described, but not resolved:
+ * https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/1147526
+ * Wrong const cast ignored on C or can be suppressed by compiler flags.
+ * But when compiled with modern C++ compiler, correct const should be
+ * provided
+ */
+ SSL_CTX_set_info_callback(dom_ctx->ssl_ctx, ssl_info_callback);
+
+ SSL_CTX_set_tlsext_servername_callback(dom_ctx->ssl_ctx,
+ ssl_servername_callback);
+ SSL_CTX_set_tlsext_servername_arg(dom_ctx->ssl_ctx, phys_ctx);
+
+ /* If a callback has been specified, call it. */
+ callback_ret = (phys_ctx->callbacks.init_ssl == NULL)
+ ? 0
+ : (phys_ctx->callbacks.init_ssl(dom_ctx->ssl_ctx,
+ phys_ctx->user_data));
+
+ /* If callback returns 0, civetweb sets up the SSL certificate.
+ * If it returns 1, civetweb assumes the calback already did this.
+ * If it returns -1, initializing ssl fails. */
+ if (callback_ret < 0) {
+ mg_cry_ctx_internal(phys_ctx,
+ "SSL callback returned error: %i",
+ callback_ret);
+ return 0;
+ }
+ if (callback_ret > 0) {
+ /* Callback did everything. */
+ return 1;
+ }
+
+ /* Use some combination of start time, domain and port as a SSL
+ * context ID. This should be unique on the current machine. */
+ md5_init(&md5state);
+ clock_gettime(CLOCK_MONOTONIC, &now_mt);
+ md5_append(&md5state, (const md5_byte_t *)&now_mt, sizeof(now_mt));
+ md5_append(&md5state,
+ (const md5_byte_t *)phys_ctx->dd.config[LISTENING_PORTS],
+ strlen(phys_ctx->dd.config[LISTENING_PORTS]));
+ md5_append(&md5state,
+ (const md5_byte_t *)dom_ctx->config[AUTHENTICATION_DOMAIN],
+ strlen(dom_ctx->config[AUTHENTICATION_DOMAIN]));
+ md5_append(&md5state, (const md5_byte_t *)phys_ctx, sizeof(*phys_ctx));
+ md5_append(&md5state, (const md5_byte_t *)dom_ctx, sizeof(*dom_ctx));
+ md5_finish(&md5state, ssl_context_id);
+
+ SSL_CTX_set_session_id_context(dom_ctx->ssl_ctx,
+ (unsigned char *)ssl_context_id,
+ sizeof(ssl_context_id));
+
+ if (pem != NULL) {
+ if (!ssl_use_pem_file(phys_ctx, dom_ctx, pem, chain)) {
+ return 0;
+ }
+ }
+
+ /* Should we support client certificates? */
+ /* Default is "no". */
+ should_verify_peer = 0;
+ peer_certificate_optional = 0;
+ if (dom_ctx->config[SSL_DO_VERIFY_PEER] != NULL) {
+ if (mg_strcasecmp(dom_ctx->config[SSL_DO_VERIFY_PEER], "yes") == 0) {
+ /* Yes, they are mandatory */
+ should_verify_peer = 1;
+ peer_certificate_optional = 0;
+ } else if (mg_strcasecmp(dom_ctx->config[SSL_DO_VERIFY_PEER],
+ "optional")
+ == 0) {
+ /* Yes, they are optional */
+ should_verify_peer = 1;
+ peer_certificate_optional = 1;
+ }
+ }
+
+ use_default_verify_paths =
+ (dom_ctx->config[SSL_DEFAULT_VERIFY_PATHS] != NULL)
+ && (mg_strcasecmp(dom_ctx->config[SSL_DEFAULT_VERIFY_PATHS], "yes")
+ == 0);
+
+ if (should_verify_peer) {
+ ca_path = dom_ctx->config[SSL_CA_PATH];
+ ca_file = dom_ctx->config[SSL_CA_FILE];
+ if (SSL_CTX_load_verify_locations(dom_ctx->ssl_ctx, ca_file, ca_path)
+ != 1) {
+ mg_cry_ctx_internal(phys_ctx,
+ "SSL_CTX_load_verify_locations error: %s "
+ "ssl_verify_peer requires setting "
+ "either ssl_ca_path or ssl_ca_file. "
+ "Is any of them present in the "
+ ".conf file?",
+ ssl_error());
+ return 0;
+ }
+
+ if (peer_certificate_optional) {
+ SSL_CTX_set_verify(dom_ctx->ssl_ctx, SSL_VERIFY_PEER, NULL);
+ } else {
+ SSL_CTX_set_verify(dom_ctx->ssl_ctx,
+ SSL_VERIFY_PEER
+ | SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
+ NULL);
+ }
+
+ if (use_default_verify_paths
+ && (SSL_CTX_set_default_verify_paths(dom_ctx->ssl_ctx) != 1)) {
+ mg_cry_ctx_internal(phys_ctx,
+ "SSL_CTX_set_default_verify_paths error: %s",
+ ssl_error());
+ return 0;
+ }
+
+ if (dom_ctx->config[SSL_VERIFY_DEPTH]) {
+ verify_depth = atoi(dom_ctx->config[SSL_VERIFY_DEPTH]);
+ SSL_CTX_set_verify_depth(dom_ctx->ssl_ctx, verify_depth);
+ }
+ }
+
+ if (dom_ctx->config[SSL_CIPHER_LIST] != NULL) {
+ if (SSL_CTX_set_cipher_list(dom_ctx->ssl_ctx,
+ dom_ctx->config[SSL_CIPHER_LIST])
+ != 1) {
+ mg_cry_ctx_internal(phys_ctx,
+ "SSL_CTX_set_cipher_list error: %s",
+ ssl_error());
+ }
+ }
+
+ return 1;
+}
+
+
+/* Check if SSL is required.
+ * If so, dynamically load SSL library
+ * and set up ctx->ssl_ctx pointer. */
+static int
+init_ssl_ctx(struct mg_context *phys_ctx, struct mg_domain_context *dom_ctx)
+{
+ void *ssl_ctx = 0;
+ int callback_ret;
+ const char *pem;
+ const char *chain;
+ char ebuf[128];
+
+ if (!phys_ctx) {
+ return 0;
+ }
+
+ if (!dom_ctx) {
+ dom_ctx = &(phys_ctx->dd);
+ }
+
+ if (!is_ssl_port_used(dom_ctx->config[LISTENING_PORTS])) {
+ /* No SSL port is set. No need to setup SSL. */
+ return 1;
+ }
+
+ /* Check for external SSL_CTX */
+ callback_ret =
+ (phys_ctx->callbacks.external_ssl_ctx == NULL)
+ ? 0
+ : (phys_ctx->callbacks.external_ssl_ctx(&ssl_ctx,
+ phys_ctx->user_data));
+
+ if (callback_ret < 0) {
+ mg_cry_ctx_internal(phys_ctx,
+ "external_ssl_ctx callback returned error: %i",
+ callback_ret);
+ return 0;
+ } else if (callback_ret > 0) {
+ dom_ctx->ssl_ctx = (SSL_CTX *)ssl_ctx;
+ if (!initialize_ssl(ebuf, sizeof(ebuf))) {
+ mg_cry_ctx_internal(phys_ctx, "%s", ebuf);
+ return 0;
+ }
+ return 1;
+ }
+ /* else: external_ssl_ctx does not exist or returns 0,
+ * CivetWeb should continue initializing SSL */
+
+ /* If PEM file is not specified and the init_ssl callback
+ * is not specified, setup will fail. */
+ if (((pem = dom_ctx->config[SSL_CERTIFICATE]) == NULL)
+ && (phys_ctx->callbacks.init_ssl == NULL)) {
+ /* No certificate and no callback:
+ * Essential data to set up TLS is missing.
+ */
+ mg_cry_ctx_internal(phys_ctx,
+ "Initializing SSL failed: -%s is not set",
+ config_options[SSL_CERTIFICATE].name);
+ return 0;
+ }
+
+ chain = dom_ctx->config[SSL_CERTIFICATE_CHAIN];
+ if (chain == NULL) {
+ chain = pem;
+ }
+ if ((chain != NULL) && (*chain == 0)) {
+ chain = NULL;
+ }
+
+ if (!initialize_ssl(ebuf, sizeof(ebuf))) {
+ mg_cry_ctx_internal(phys_ctx, "%s", ebuf);
+ return 0;
+ }
+
+ return init_ssl_ctx_impl(phys_ctx, dom_ctx, pem, chain);
+}
+
+
+static void
+uninitialize_ssl(void)
+{
+#if defined(OPENSSL_API_1_1)
+
+ if (mg_atomic_dec(&cryptolib_users) == 0) {
+
+ /* Shutdown according to
+ * https://wiki.openssl.org/index.php/Library_Initialization#Cleanup
+ * http://stackoverflow.com/questions/29845527/how-to-properly-uninitialize-openssl
+ */
+ CONF_modules_unload(1);
+#else
+ int i;
+
+ if (mg_atomic_dec(&cryptolib_users) == 0) {
+
+ /* Shutdown according to
+ * https://wiki.openssl.org/index.php/Library_Initialization#Cleanup
+ * http://stackoverflow.com/questions/29845527/how-to-properly-uninitialize-openssl
+ */
+ CRYPTO_set_locking_callback(NULL);
+ CRYPTO_set_id_callback(NULL);
+ ENGINE_cleanup();
+ CONF_modules_unload(1);
+ ERR_free_strings();
+ EVP_cleanup();
+ CRYPTO_cleanup_all_ex_data();
+ OPENSSL_REMOVE_THREAD_STATE();
+
+ for (i = 0; i < CRYPTO_num_locks(); i++) {
+ pthread_mutex_destroy(&ssl_mutexes[i]);
+ }
+ mg_free(ssl_mutexes);
+ ssl_mutexes = NULL;
+#endif /* OPENSSL_API_1_1 */
+ }
+}
+#endif /* !NO_SSL */
+
+
+static int
+set_gpass_option(struct mg_context *phys_ctx, struct mg_domain_context *dom_ctx)
+{
+ if (phys_ctx) {
+ struct mg_file file = STRUCT_FILE_INITIALIZER;
+ const char *path;
+ struct mg_connection fc;
+ if (!dom_ctx) {
+ dom_ctx = &(phys_ctx->dd);
+ }
+ path = dom_ctx->config[GLOBAL_PASSWORDS_FILE];
+ if ((path != NULL)
+ && !mg_stat(fake_connection(&fc, phys_ctx), path, &file.stat)) {
+ mg_cry_ctx_internal(phys_ctx,
+ "Cannot open %s: %s",
+ path,
+ strerror(ERRNO));
+ return 0;
+ }
+ return 1;
+ }
+ return 0;
+}
+
+
+static int
+set_acl_option(struct mg_context *phys_ctx)
+{
+ return check_acl(phys_ctx, (uint32_t)0x7f000001UL) != -1;
+}
+
+
+static void
+reset_per_request_attributes(struct mg_connection *conn)
+{
+ if (!conn) {
+ return;
+ }
+ conn->connection_type =
+ CONNECTION_TYPE_INVALID; /* Not yet a valid request/response */
+
+ conn->num_bytes_sent = conn->consumed_content = 0;
+
+ conn->path_info = NULL;
+ conn->status_code = -1;
+ conn->content_len = -1;
+ conn->is_chunked = 0;
+ conn->must_close = 0;
+ conn->request_len = 0;
+ conn->throttle = 0;
+ conn->accept_gzip = 0;
+
+ conn->response_info.content_length = conn->request_info.content_length = -1;
+ conn->response_info.http_version = conn->request_info.http_version = NULL;
+ conn->response_info.num_headers = conn->request_info.num_headers = 0;
+ conn->response_info.status_text = NULL;
+ conn->response_info.status_code = 0;
+
+ conn->request_info.remote_user = NULL;
+ conn->request_info.request_method = NULL;
+ conn->request_info.request_uri = NULL;
+ conn->request_info.local_uri = NULL;
+
+#if defined(MG_LEGACY_INTERFACE)
+ /* Legacy before split into local_uri and request_uri */
+ conn->request_info.uri = NULL;
+#endif
+}
+
+
+static int
+set_tcp_nodelay(SOCKET sock, int nodelay_on)
+{
+ if (setsockopt(sock,
+ IPPROTO_TCP,
+ TCP_NODELAY,
+ (SOCK_OPT_TYPE)&nodelay_on,
+ sizeof(nodelay_on))
+ != 0) {
+ /* Error */
+ return 1;
+ }
+ /* OK */
+ return 0;
+}
+
+
+static void
+close_socket_gracefully(struct mg_connection *conn)
+{
+#if defined(_WIN32)
+ char buf[MG_BUF_LEN];
+ int n;
+#endif
+ struct linger linger;
+ int error_code = 0;
+ int linger_timeout = -2;
+ socklen_t opt_len = sizeof(error_code);
+
+ if (!conn) {
+ return;
+ }
+
+ /* http://msdn.microsoft.com/en-us/library/ms739165(v=vs.85).aspx:
+ * "Note that enabling a nonzero timeout on a nonblocking socket
+ * is not recommended.", so set it to blocking now */
+ set_blocking_mode(conn->client.sock);
+
+ /* Send FIN to the client */
+ shutdown(conn->client.sock, SHUTDOWN_WR);
+
+
+#if defined(_WIN32)
+ /* Read and discard pending incoming data. If we do not do that and
+ * close
+ * the socket, the data in the send buffer may be discarded. This
+ * behaviour is seen on Windows, when client keeps sending data
+ * when server decides to close the connection; then when client
+ * does recv() it gets no data back. */
+ do {
+ n = pull_inner(NULL, conn, buf, sizeof(buf), /* Timeout in s: */ 1.0);
+ } while (n > 0);
+#endif
+
+ if (conn->dom_ctx->config[LINGER_TIMEOUT]) {
+ linger_timeout = atoi(conn->dom_ctx->config[LINGER_TIMEOUT]);
+ }
+
+ /* Set linger option according to configuration */
+ if (linger_timeout >= 0) {
+ /* Set linger option to avoid socket hanging out after close. This
+ * prevent ephemeral port exhaust problem under high QPS. */
+ linger.l_onoff = 1;
+
+#if defined(_MSC_VER)
+#pragma warning(push)
+#pragma warning(disable : 4244)
+#endif
+#if defined(GCC_DIAGNOSTIC)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wconversion"
+#endif
+ /* Data type of linger structure elements may differ,
+ * so we don't know what cast we need here.
+ * Disable type conversion warnings. */
+
+ linger.l_linger = (linger_timeout + 999) / 1000;
+
+#if defined(GCC_DIAGNOSTIC)
+#pragma GCC diagnostic pop
+#endif
+#if defined(_MSC_VER)
+#pragma warning(pop)
+#endif
+
+ } else {
+ linger.l_onoff = 0;
+ linger.l_linger = 0;
+ }
+
+ if (linger_timeout < -1) {
+ /* Default: don't configure any linger */
+ } else if (getsockopt(conn->client.sock,
+ SOL_SOCKET,
+ SO_ERROR,
+#if defined(_WIN32) /* WinSock uses different data type here */
+ (char *)&error_code,
+#else
+ &error_code,
+#endif
+ &opt_len)
+ != 0) {
+ /* Cannot determine if socket is already closed. This should
+ * not occur and never did in a test. Log an error message
+ * and continue. */
+ mg_cry_internal(conn,
+ "%s: getsockopt(SOL_SOCKET SO_ERROR) failed: %s",
+ __func__,
+ strerror(ERRNO));
+#if defined(_WIN32)
+ } else if (error_code == WSAECONNRESET) {
+#else
+ } else if (error_code == ECONNRESET) {
+#endif
+ /* Socket already closed by client/peer, close socket without linger
+ */
+ } else {
+
+ /* Set linger timeout */
+ if (setsockopt(conn->client.sock,
+ SOL_SOCKET,
+ SO_LINGER,
+ (char *)&linger,
+ sizeof(linger))
+ != 0) {
+ mg_cry_internal(
+ conn,
+ "%s: setsockopt(SOL_SOCKET SO_LINGER(%i,%i)) failed: %s",
+ __func__,
+ linger.l_onoff,
+ linger.l_linger,
+ strerror(ERRNO));
+ }
+ }
+
+ /* Now we know that our FIN is ACK-ed, safe to close */
+ closesocket(conn->client.sock);
+ conn->client.sock = INVALID_SOCKET;
+}
+
+
+static void
+close_connection(struct mg_connection *conn)
+{
+#if defined(USE_SERVER_STATS)
+ conn->conn_state = 6; /* to close */
+#endif
+
+#if defined(USE_LUA) && defined(USE_WEBSOCKET)
+ if (conn->lua_websocket_state) {
+ lua_websocket_close(conn, conn->lua_websocket_state);
+ conn->lua_websocket_state = NULL;
+ }
+#endif
+
+ mg_lock_connection(conn);
+
+ /* Set close flag, so keep-alive loops will stop */
+ conn->must_close = 1;
+
+ /* call the connection_close callback if assigned */
+ if (conn->phys_ctx->callbacks.connection_close != NULL) {
+ if (conn->phys_ctx->context_type == CONTEXT_SERVER) {
+ conn->phys_ctx->callbacks.connection_close(conn);
+ }
+ }
+
+ /* Reset user data, after close callback is called.
+ * Do not reuse it. If the user needs a destructor,
+ * it must be done in the connection_close callback. */
+ mg_set_user_connection_data(conn, NULL);
+
+
+#if defined(USE_SERVER_STATS)
+ conn->conn_state = 7; /* closing */
+#endif
+
+#if !defined(NO_SSL)
+ if (conn->ssl != NULL) {
+ /* Run SSL_shutdown twice to ensure completely close SSL connection
+ */
+ SSL_shutdown(conn->ssl);
+ SSL_free(conn->ssl);
+ OPENSSL_REMOVE_THREAD_STATE();
+ conn->ssl = NULL;
+ }
+#endif
+ if (conn->client.sock != INVALID_SOCKET) {
+ close_socket_gracefully(conn);
+ conn->client.sock = INVALID_SOCKET;
+ }
+
+ if (conn->host) {
+ mg_free((void *)conn->host);
+ conn->host = NULL;
+ }
+
+ mg_unlock_connection(conn);
+
+#if defined(USE_SERVER_STATS)
+ conn->conn_state = 8; /* closed */
+#endif
+}
+
+
+void
+mg_close_connection(struct mg_connection *conn)
+{
+ if ((conn == NULL) || (conn->phys_ctx == NULL)) {
+ return;
+ }
+
+#if defined(USE_WEBSOCKET)
+ if (conn->phys_ctx->context_type == CONTEXT_SERVER) {
+ if (conn->in_websocket_handling) {
+ /* Set close flag, so the server thread can exit. */
+ conn->must_close = 1;
+ return;
+ }
+ }
+ if (conn->phys_ctx->context_type == CONTEXT_WS_CLIENT) {
+
+ unsigned int i;
+
+ /* client context: loops must end */
+ conn->phys_ctx->stop_flag = 1;
+ conn->must_close = 1;
+
+ /* We need to get the client thread out of the select/recv call
+ * here. */
+ /* Since we use a sleep quantum of some seconds to check for recv
+ * timeouts, we will just wait a few seconds in mg_join_thread. */
+
+ /* join worker thread */
+ for (i = 0; i < conn->phys_ctx->cfg_worker_threads; i++) {
+ mg_join_thread(conn->phys_ctx->worker_threadids[i]);
+ }
+ }
+#endif /* defined(USE_WEBSOCKET) */
+
+ close_connection(conn);
+
+#if !defined(NO_SSL)
+ if (((conn->phys_ctx->context_type == CONTEXT_HTTP_CLIENT)
+ || (conn->phys_ctx->context_type == CONTEXT_WS_CLIENT))
+ && (conn->phys_ctx->dd.ssl_ctx != NULL)) {
+ SSL_CTX_free(conn->phys_ctx->dd.ssl_ctx);
+ }
+#endif
+
+#if defined(USE_WEBSOCKET)
+ if (conn->phys_ctx->context_type == CONTEXT_WS_CLIENT) {
+ mg_free(conn->phys_ctx->worker_threadids);
+ (void)pthread_mutex_destroy(&conn->mutex);
+ mg_free(conn);
+ } else if (conn->phys_ctx->context_type == CONTEXT_HTTP_CLIENT) {
+ mg_free(conn);
+ }
+#else
+ if (conn->phys_ctx->context_type == CONTEXT_HTTP_CLIENT) { /* Client */
+ mg_free(conn);
+ }
+#endif /* defined(USE_WEBSOCKET) */
+}
+
+
+static struct mg_connection *
+mg_connect_client_impl(const struct mg_client_options *client_options,
+ int use_ssl,
+ char *ebuf,
+ size_t ebuf_len)
+{
+ struct mg_connection *conn = NULL;
+ SOCKET sock;
+ union usa sa;
+ struct sockaddr *psa;
+ socklen_t len;
+
+ unsigned max_req_size =
+ (unsigned)atoi(config_options[MAX_REQUEST_SIZE].default_value);
+
+ /* Size of structures, aligned to 8 bytes */
+ size_t conn_size = ((sizeof(struct mg_connection) + 7) >> 3) << 3;
+ size_t ctx_size = ((sizeof(struct mg_context) + 7) >> 3) << 3;
+
+ conn =
+ (struct mg_connection *)mg_calloc(1,
+ conn_size + ctx_size + max_req_size);
+
+ if (conn == NULL) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "calloc(): %s",
+ strerror(ERRNO));
+ return NULL;
+ }
+
+#if defined(GCC_DIAGNOSTIC)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wcast-align"
+#endif /* defined(GCC_DIAGNOSTIC) */
+ /* conn_size is aligned to 8 bytes */
+
+ conn->phys_ctx = (struct mg_context *)(((char *)conn) + conn_size);
+
+#if defined(GCC_DIAGNOSTIC)
+#pragma GCC diagnostic pop
+#endif /* defined(GCC_DIAGNOSTIC) */
+
+ conn->buf = (((char *)conn) + conn_size + ctx_size);
+ conn->buf_size = (int)max_req_size;
+ conn->phys_ctx->context_type = CONTEXT_HTTP_CLIENT;
+ conn->dom_ctx = &(conn->phys_ctx->dd);
+
+ if (!connect_socket(conn->phys_ctx,
+ client_options->host,
+ client_options->port,
+ use_ssl,
+ ebuf,
+ ebuf_len,
+ &sock,
+ &sa)) {
+ /* ebuf is set by connect_socket,
+ * free all memory and return NULL; */
+ mg_free(conn);
+ return NULL;
+ }
+
+#if !defined(NO_SSL)
+#if defined(OPENSSL_API_1_1)
+ if (use_ssl
+ && (conn->dom_ctx->ssl_ctx = SSL_CTX_new(TLS_client_method()))
+ == NULL) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "SSL_CTX_new error: %s",
+ ssl_error());
+ closesocket(sock);
+ mg_free(conn);
+ return NULL;
+ }
+#else
+ if (use_ssl
+ && (conn->dom_ctx->ssl_ctx = SSL_CTX_new(SSLv23_client_method()))
+ == NULL) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "SSL_CTX_new error: %s",
+ ssl_error());
+ closesocket(sock);
+ mg_free(conn);
+ return NULL;
+ }
+#endif /* OPENSSL_API_1_1 */
+#endif /* NO_SSL */
+
+
+#if defined(USE_IPV6)
+ len = (sa.sa.sa_family == AF_INET) ? sizeof(conn->client.rsa.sin)
+ : sizeof(conn->client.rsa.sin6);
+ psa = (sa.sa.sa_family == AF_INET)
+ ? (struct sockaddr *)&(conn->client.rsa.sin)
+ : (struct sockaddr *)&(conn->client.rsa.sin6);
+#else
+ len = sizeof(conn->client.rsa.sin);
+ psa = (struct sockaddr *)&(conn->client.rsa.sin);
+#endif
+
+ conn->client.sock = sock;
+ conn->client.lsa = sa;
+
+ if (getsockname(sock, psa, &len) != 0) {
+ mg_cry_internal(conn,
+ "%s: getsockname() failed: %s",
+ __func__,
+ strerror(ERRNO));
+ }
+
+ conn->client.is_ssl = use_ssl ? 1 : 0;
+ if (0 != pthread_mutex_init(&conn->mutex, &pthread_mutex_attr)) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "Can not create mutex");
+#if !defined(NO_SSL)
+ SSL_CTX_free(conn->dom_ctx->ssl_ctx);
+#endif
+ closesocket(sock);
+ mg_free(conn);
+ return NULL;
+ }
+
+
+#if !defined(NO_SSL)
+ if (use_ssl) {
+ /* TODO: Check ssl_verify_peer and ssl_ca_path here.
+ * SSL_CTX_set_verify call is needed to switch off server
+ * certificate checking, which is off by default in OpenSSL and
+ * on in yaSSL. */
+ /* TODO: SSL_CTX_set_verify(conn->dom_ctx,
+ * SSL_VERIFY_PEER, verify_ssl_server); */
+
+ if (client_options->client_cert) {
+ if (!ssl_use_pem_file(conn->phys_ctx,
+ conn->dom_ctx,
+ client_options->client_cert,
+ NULL)) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "Can not use SSL client certificate");
+ SSL_CTX_free(conn->dom_ctx->ssl_ctx);
+ closesocket(sock);
+ mg_free(conn);
+ return NULL;
+ }
+ }
+
+ if (client_options->server_cert) {
+ if (SSL_CTX_load_verify_locations(conn->dom_ctx->ssl_ctx,
+ client_options->server_cert,
+ NULL)
+ != 1) {
+ mg_cry_internal(conn,
+ "SSL_CTX_load_verify_locations error: %s ",
+ ssl_error());
+ SSL_CTX_free(conn->dom_ctx->ssl_ctx);
+ closesocket(sock);
+ mg_free(conn);
+ return NULL;
+ }
+ SSL_CTX_set_verify(conn->dom_ctx->ssl_ctx, SSL_VERIFY_PEER, NULL);
+ } else {
+ SSL_CTX_set_verify(conn->dom_ctx->ssl_ctx, SSL_VERIFY_NONE, NULL);
+ }
+
+ if (!sslize(conn,
+ conn->dom_ctx->ssl_ctx,
+ SSL_connect,
+ &(conn->phys_ctx->stop_flag),
+ client_options)) {
+ mg_snprintf(NULL,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "SSL connection error");
+ SSL_CTX_free(conn->dom_ctx->ssl_ctx);
+ closesocket(sock);
+ mg_free(conn);
+ return NULL;
+ }
+ }
+#endif
+
+ return conn;
+}
+
+
+CIVETWEB_API struct mg_connection *
+mg_connect_client_secure(const struct mg_client_options *client_options,
+ char *error_buffer,
+ size_t error_buffer_size)
+{
+ return mg_connect_client_impl(client_options,
+ 1,
+ error_buffer,
+ error_buffer_size);
+}
+
+
+struct mg_connection *
+mg_connect_client(const char *host,
+ int port,
+ int use_ssl,
+ char *error_buffer,
+ size_t error_buffer_size)
+{
+ struct mg_client_options opts;
+ memset(&opts, 0, sizeof(opts));
+ opts.host = host;
+ opts.port = port;
+ return mg_connect_client_impl(&opts,
+ use_ssl,
+ error_buffer,
+ error_buffer_size);
+}
+
+
+static const struct {
+ const char *proto;
+ size_t proto_len;
+ unsigned default_port;
+} abs_uri_protocols[] = {{"http://", 7, 80},
+ {"https://", 8, 443},
+ {"ws://", 5, 80},
+ {"wss://", 6, 443},
+ {NULL, 0, 0}};
+
+
+/* Check if the uri is valid.
+ * return 0 for invalid uri,
+ * return 1 for *,
+ * return 2 for relative uri,
+ * return 3 for absolute uri without port,
+ * return 4 for absolute uri with port */
+static int
+get_uri_type(const char *uri)
+{
+ int i;
+ const char *hostend, *portbegin;
+ char *portend;
+ unsigned long port;
+
+ /* According to the HTTP standard
+ * http://www.w3.org/Protocols/rfc2616/rfc2616-sec5.html#sec5.1.2
+ * URI can be an asterisk (*) or should start with slash (relative uri),
+ * or it should start with the protocol (absolute uri). */
+ if ((uri[0] == '*') && (uri[1] == '\0')) {
+ /* asterisk */
+ return 1;
+ }
+
+ /* Valid URIs according to RFC 3986
+ * (https://www.ietf.org/rfc/rfc3986.txt)
+ * must only contain reserved characters :/?#[]@!$&'()*+,;=
+ * and unreserved characters A-Z a-z 0-9 and -._~
+ * and % encoded symbols.
+ */
+ for (i = 0; uri[i] != 0; i++) {
+ if (uri[i] < 33) {
+ /* control characters and spaces are invalid */
+ return 0;
+ }
+ if (uri[i] > 126) {
+ /* non-ascii characters must be % encoded */
+ return 0;
+ } else {
+ switch (uri[i]) {
+ case '"': /* 34 */
+ case '<': /* 60 */
+ case '>': /* 62 */
+ case '\\': /* 92 */
+ case '^': /* 94 */
+ case '`': /* 96 */
+ case '{': /* 123 */
+ case '|': /* 124 */
+ case '}': /* 125 */
+ return 0;
+ default:
+ /* character is ok */
+ break;
+ }
+ }
+ }
+
+ /* A relative uri starts with a / character */
+ if (uri[0] == '/') {
+ /* relative uri */
+ return 2;
+ }
+
+ /* It could be an absolute uri: */
+ /* This function only checks if the uri is valid, not if it is
+ * addressing the current server. So civetweb can also be used
+ * as a proxy server. */
+ for (i = 0; abs_uri_protocols[i].proto != NULL; i++) {
+ if (mg_strncasecmp(uri,
+ abs_uri_protocols[i].proto,
+ abs_uri_protocols[i].proto_len)
+ == 0) {
+
+ hostend = strchr(uri + abs_uri_protocols[i].proto_len, '/');
+ if (!hostend) {
+ return 0;
+ }
+ portbegin = strchr(uri + abs_uri_protocols[i].proto_len, ':');
+ if (!portbegin) {
+ return 3;
+ }
+
+ port = strtoul(portbegin + 1, &portend, 10);
+ if ((portend != hostend) || (port <= 0) || !is_valid_port(port)) {
+ return 0;
+ }
+
+ return 4;
+ }
+ }
+
+ return 0;
+}
+
+
+/* Return NULL or the relative uri at the current server */
+static const char *
+get_rel_url_at_current_server(const char *uri, const struct mg_connection *conn)
+{
+ const char *server_domain;
+ size_t server_domain_len;
+ size_t request_domain_len = 0;
+ unsigned long port = 0;
+ int i, auth_domain_check_enabled;
+ const char *hostbegin = NULL;
+ const char *hostend = NULL;
+ const char *portbegin;
+ char *portend;
+
+ auth_domain_check_enabled =
+ !mg_strcasecmp(conn->dom_ctx->config[ENABLE_AUTH_DOMAIN_CHECK], "yes");
+
+ /* DNS is case insensitive, so use case insensitive string compare here
+ */
+ for (i = 0; abs_uri_protocols[i].proto != NULL; i++) {
+ if (mg_strncasecmp(uri,
+ abs_uri_protocols[i].proto,
+ abs_uri_protocols[i].proto_len)
+ == 0) {
+
+ hostbegin = uri + abs_uri_protocols[i].proto_len;
+ hostend = strchr(hostbegin, '/');
+ if (!hostend) {
+ return 0;
+ }
+ portbegin = strchr(hostbegin, ':');
+ if ((!portbegin) || (portbegin > hostend)) {
+ port = abs_uri_protocols[i].default_port;
+ request_domain_len = (size_t)(hostend - hostbegin);
+ } else {
+ port = strtoul(portbegin + 1, &portend, 10);
+ if ((portend != hostend) || (port <= 0)
+ || !is_valid_port(port)) {
+ return 0;
+ }
+ request_domain_len = (size_t)(portbegin - hostbegin);
+ }
+ /* protocol found, port set */
+ break;
+ }
+ }
+
+ if (!port) {
+ /* port remains 0 if the protocol is not found */
+ return 0;
+ }
+
+/* Check if the request is directed to a different server. */
+/* First check if the port is the same (IPv4 and IPv6). */
+#if defined(USE_IPV6)
+ if (conn->client.lsa.sa.sa_family == AF_INET6) {
+ if (ntohs(conn->client.lsa.sin6.sin6_port) != port) {
+ /* Request is directed to a different port */
+ return 0;
+ }
+ } else
+#endif
+ {
+ if (ntohs(conn->client.lsa.sin.sin_port) != port) {
+ /* Request is directed to a different port */
+ return 0;
+ }
+ }
+
+ /* Finally check if the server corresponds to the authentication
+ * domain of the server (the server domain).
+ * Allow full matches (like http://mydomain.com/path/file.ext), and
+ * allow subdomain matches (like http://www.mydomain.com/path/file.ext),
+ * but do not allow substrings (like
+ * http://notmydomain.com/path/file.ext
+ * or http://mydomain.com.fake/path/file.ext).
+ */
+ if (auth_domain_check_enabled) {
+ server_domain = conn->dom_ctx->config[AUTHENTICATION_DOMAIN];
+ server_domain_len = strlen(server_domain);
+ if ((server_domain_len == 0) || (hostbegin == NULL)) {
+ return 0;
+ }
+ if ((request_domain_len == server_domain_len)
+ && (!memcmp(server_domain, hostbegin, server_domain_len))) {
+ /* Request is directed to this server - full name match. */
+ } else {
+ if (request_domain_len < (server_domain_len + 2)) {
+ /* Request is directed to another server: The server name
+ * is longer than the request name.
+ * Drop this case here to avoid overflows in the
+ * following checks. */
+ return 0;
+ }
+ if (hostbegin[request_domain_len - server_domain_len - 1] != '.') {
+ /* Request is directed to another server: It could be a
+ * substring
+ * like notmyserver.com */
+ return 0;
+ }
+ if (0
+ != memcmp(server_domain,
+ hostbegin + request_domain_len - server_domain_len,
+ server_domain_len)) {
+ /* Request is directed to another server:
+ * The server name is different. */
+ return 0;
+ }
+ }
+ }
+
+ return hostend;
+}
+
+
+static int
+get_message(struct mg_connection *conn, char *ebuf, size_t ebuf_len, int *err)
+{
+ if (ebuf_len > 0) {
+ ebuf[0] = '\0';
+ }
+ *err = 0;
+
+ reset_per_request_attributes(conn);
+
+ if (!conn) {
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "Internal error");
+ *err = 500;
+ return 0;
+ }
+ /* Set the time the request was received. This value should be used for
+ * timeouts. */
+ clock_gettime(CLOCK_MONOTONIC, &(conn->req_time));
+
+ conn->request_len =
+ read_message(NULL, conn, conn->buf, conn->buf_size, &conn->data_len);
+ DEBUG_ASSERT(conn->request_len < 0 || conn->data_len >= conn->request_len);
+ if ((conn->request_len >= 0) && (conn->data_len < conn->request_len)) {
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "Invalid message size");
+ *err = 500;
+ return 0;
+ }
+
+ if ((conn->request_len == 0) && (conn->data_len == conn->buf_size)) {
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "Message too large");
+ *err = 413;
+ return 0;
+ }
+
+ if (conn->request_len <= 0) {
+ if (conn->data_len > 0) {
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "Malformed message");
+ *err = 400;
+ } else {
+ /* Server did not recv anything -> just close the connection */
+ conn->must_close = 1;
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "No data received");
+ *err = 0;
+ }
+ return 0;
+ }
+ return 1;
+}
+
+
+static int
+get_request(struct mg_connection *conn, char *ebuf, size_t ebuf_len, int *err)
+{
+ const char *cl;
+ if (!get_message(conn, ebuf, ebuf_len, err)) {
+ return 0;
+ }
+
+ if (parse_http_request(conn->buf, conn->buf_size, &conn->request_info)
+ <= 0) {
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "Bad request");
+ *err = 400;
+ return 0;
+ }
+
+ /* Message is a valid request */
+
+ /* Is there a "host" ? */
+ if (conn->host != NULL) {
+ mg_free((void *)conn->host);
+ }
+ conn->host = alloc_get_host(conn);
+ if (!conn->host) {
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "Bad request: Host mismatch");
+ *err = 400;
+ return 0;
+ }
+
+ if (((cl = get_header(conn->request_info.http_headers,
+ conn->request_info.num_headers,
+ "Transfer-Encoding"))
+ != NULL)
+ && mg_strcasecmp(cl, "identity")) {
+ if (mg_strcasecmp(cl, "chunked")) {
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "Bad request");
+ *err = 400;
+ return 0;
+ }
+ conn->is_chunked = 1;
+ conn->content_len = 0; /* not yet read */
+ } else if ((cl = get_header(conn->request_info.http_headers,
+ conn->request_info.num_headers,
+ "Content-Length"))
+ != NULL) {
+ /* Request has content length set */
+ char *endptr = NULL;
+ conn->content_len = strtoll(cl, &endptr, 10);
+ if ((endptr == cl) || (conn->content_len < 0)) {
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "Bad request");
+ *err = 411;
+ return 0;
+ }
+ /* Publish the content length back to the request info. */
+ conn->request_info.content_length = conn->content_len;
+ } else {
+ /* There is no exception, see RFC7230. */
+ conn->content_len = 0;
+ }
+
+ conn->connection_type = CONNECTION_TYPE_REQUEST; /* Valid request */
+ return 1;
+}
+
+
+/* conn is assumed to be valid in this internal function */
+static int
+get_response(struct mg_connection *conn, char *ebuf, size_t ebuf_len, int *err)
+{
+ const char *cl;
+ if (!get_message(conn, ebuf, ebuf_len, err)) {
+ return 0;
+ }
+
+ if (parse_http_response(conn->buf, conn->buf_size, &conn->response_info)
+ <= 0) {
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "Bad response");
+ *err = 400;
+ return 0;
+ }
+
+ /* Message is a valid response */
+
+ if (((cl = get_header(conn->response_info.http_headers,
+ conn->response_info.num_headers,
+ "Transfer-Encoding"))
+ != NULL)
+ && mg_strcasecmp(cl, "identity")) {
+ if (mg_strcasecmp(cl, "chunked")) {
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "Bad request");
+ *err = 400;
+ return 0;
+ }
+ conn->is_chunked = 1;
+ conn->content_len = 0; /* not yet read */
+ } else if ((cl = get_header(conn->response_info.http_headers,
+ conn->response_info.num_headers,
+ "Content-Length"))
+ != NULL) {
+ char *endptr = NULL;
+ conn->content_len = strtoll(cl, &endptr, 10);
+ if ((endptr == cl) || (conn->content_len < 0)) {
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "Bad request");
+ *err = 411;
+ return 0;
+ }
+ /* Publish the content length back to the response info. */
+ conn->response_info.content_length = conn->content_len;
+
+ /* TODO: check if it is still used in response_info */
+ conn->request_info.content_length = conn->content_len;
+
+ /* TODO: we should also consider HEAD method */
+ if (conn->response_info.status_code == 304) {
+ conn->content_len = 0;
+ }
+ } else {
+ /* TODO: we should also consider HEAD method */
+ if (((conn->response_info.status_code >= 100)
+ && (conn->response_info.status_code <= 199))
+ || (conn->response_info.status_code == 204)
+ || (conn->response_info.status_code == 304)) {
+ conn->content_len = 0;
+ } else {
+ conn->content_len = -1; /* unknown content length */
+ }
+ }
+
+ conn->connection_type = CONNECTION_TYPE_RESPONSE; /* Valid response */
+ return 1;
+}
+
+
+int
+mg_get_response(struct mg_connection *conn,
+ char *ebuf,
+ size_t ebuf_len,
+ int timeout)
+{
+ int err, ret;
+ char txt[32]; /* will not overflow */
+ char *save_timeout;
+ char *new_timeout;
+
+ if (ebuf_len > 0) {
+ ebuf[0] = '\0';
+ }
+
+ if (!conn) {
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "Parameter error");
+ return -1;
+ }
+
+ /* Reset the previous responses */
+ conn->data_len = 0;
+
+ /* Implementation of API function for HTTP clients */
+ save_timeout = conn->dom_ctx->config[REQUEST_TIMEOUT];
+
+ if (timeout >= 0) {
+ mg_snprintf(conn, NULL, txt, sizeof(txt), "%i", timeout);
+ new_timeout = txt;
+ } else {
+ new_timeout = NULL;
+ }
+
+ conn->dom_ctx->config[REQUEST_TIMEOUT] = new_timeout;
+ ret = get_response(conn, ebuf, ebuf_len, &err);
+ conn->dom_ctx->config[REQUEST_TIMEOUT] = save_timeout;
+
+#if defined(MG_LEGACY_INTERFACE)
+ /* TODO: 1) uri is deprecated;
+ * 2) here, ri.uri is the http response code */
+ conn->request_info.uri = conn->request_info.request_uri;
+#endif
+ conn->request_info.local_uri = conn->request_info.request_uri;
+
+ /* TODO (mid): Define proper return values - maybe return length?
+ * For the first test use <0 for error and >0 for OK */
+ return (ret == 0) ? -1 : +1;
+}
+
+
+struct mg_connection *
+mg_download(const char *host,
+ int port,
+ int use_ssl,
+ char *ebuf,
+ size_t ebuf_len,
+ const char *fmt,
+ ...)
+{
+ struct mg_connection *conn;
+ va_list ap;
+ int i;
+ int reqerr;
+
+ if (ebuf_len > 0) {
+ ebuf[0] = '\0';
+ }
+
+ va_start(ap, fmt);
+
+ /* open a connection */
+ conn = mg_connect_client(host, port, use_ssl, ebuf, ebuf_len);
+
+ if (conn != NULL) {
+ i = mg_vprintf(conn, fmt, ap);
+ if (i <= 0) {
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ ebuf_len,
+ "%s",
+ "Error sending request");
+ } else {
+ /* make sure the buffer is clear */
+ conn->data_len = 0;
+ get_response(conn, ebuf, ebuf_len, &reqerr);
+
+#if defined(MG_LEGACY_INTERFACE)
+ /* TODO: 1) uri is deprecated;
+ * 2) here, ri.uri is the http response code */
+ conn->request_info.uri = conn->request_info.request_uri;
+#endif
+ conn->request_info.local_uri = conn->request_info.request_uri;
+ }
+ }
+
+ /* if an error occurred, close the connection */
+ if ((ebuf[0] != '\0') && (conn != NULL)) {
+ mg_close_connection(conn);
+ conn = NULL;
+ }
+
+ va_end(ap);
+ return conn;
+}
+
+
+struct websocket_client_thread_data {
+ struct mg_connection *conn;
+ mg_websocket_data_handler data_handler;
+ mg_websocket_close_handler close_handler;
+ void *callback_data;
+};
+
+
+#if defined(USE_WEBSOCKET)
+#if defined(_WIN32)
+static unsigned __stdcall websocket_client_thread(void *data)
+#else
+static void *
+websocket_client_thread(void *data)
+#endif
+{
+ struct websocket_client_thread_data *cdata =
+ (struct websocket_client_thread_data *)data;
+
+ void *user_thread_ptr = NULL;
+
+#if !defined(_WIN32)
+ struct sigaction sa;
+
+ /* Ignore SIGPIPE */
+ memset(&sa, 0, sizeof(sa));
+ sa.sa_handler = SIG_IGN;
+ sigaction(SIGPIPE, &sa, NULL);
+#endif
+
+ mg_set_thread_name("ws-clnt");
+
+ if (cdata->conn->phys_ctx) {
+ if (cdata->conn->phys_ctx->callbacks.init_thread) {
+ /* 3 indicates a websocket client thread */
+ /* TODO: check if conn->phys_ctx can be set */
+ user_thread_ptr = cdata->conn->phys_ctx->callbacks.init_thread(
+ cdata->conn->phys_ctx, 3);
+ }
+ }
+
+ read_websocket(cdata->conn, cdata->data_handler, cdata->callback_data);
+
+ DEBUG_TRACE("%s", "Websocket client thread exited\n");
+
+ if (cdata->close_handler != NULL) {
+ cdata->close_handler(cdata->conn, cdata->callback_data);
+ }
+
+ /* The websocket_client context has only this thread. If it runs out,
+ set the stop_flag to 2 (= "stopped"). */
+ cdata->conn->phys_ctx->stop_flag = 2;
+
+ if (cdata->conn->phys_ctx->callbacks.exit_thread) {
+ cdata->conn->phys_ctx->callbacks.exit_thread(cdata->conn->phys_ctx,
+ 3,
+ user_thread_ptr);
+ }
+
+ mg_free((void *)cdata);
+
+#if defined(_WIN32)
+ return 0;
+#else
+ return NULL;
+#endif
+}
+#endif
+
+
+struct mg_connection *
+mg_connect_websocket_client(const char *host,
+ int port,
+ int use_ssl,
+ char *error_buffer,
+ size_t error_buffer_size,
+ const char *path,
+ const char *origin,
+ mg_websocket_data_handler data_func,
+ mg_websocket_close_handler close_func,
+ void *user_data)
+{
+ struct mg_connection *conn = NULL;
+
+#if defined(USE_WEBSOCKET)
+ struct websocket_client_thread_data *thread_data;
+ static const char *magic = "x3JJHMbDL1EzLkh9GBhXDw==";
+ static const char *handshake_req;
+
+ if (origin != NULL) {
+ handshake_req = "GET %s HTTP/1.1\r\n"
+ "Host: %s\r\n"
+ "Upgrade: websocket\r\n"
+ "Connection: Upgrade\r\n"
+ "Sec-WebSocket-Key: %s\r\n"
+ "Sec-WebSocket-Version: 13\r\n"
+ "Origin: %s\r\n"
+ "\r\n";
+ } else {
+ handshake_req = "GET %s HTTP/1.1\r\n"
+ "Host: %s\r\n"
+ "Upgrade: websocket\r\n"
+ "Connection: Upgrade\r\n"
+ "Sec-WebSocket-Key: %s\r\n"
+ "Sec-WebSocket-Version: 13\r\n"
+ "\r\n";
+ }
+
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wformat-nonliteral"
+#endif
+
+ /* Establish the client connection and request upgrade */
+ conn = mg_download(host,
+ port,
+ use_ssl,
+ error_buffer,
+ error_buffer_size,
+ handshake_req,
+ path,
+ host,
+ magic,
+ origin);
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
+ /* Connection object will be null if something goes wrong */
+ if (conn == NULL) {
+ if (!*error_buffer) {
+ /* There should be already an error message */
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ error_buffer,
+ error_buffer_size,
+ "Unexpected error");
+ }
+ return NULL;
+ }
+
+ if (conn->response_info.status_code != 101) {
+ /* We sent an "upgrade" request. For a correct websocket
+ * protocol handshake, we expect a "101 Continue" response.
+ * Otherwise it is a protocol violation. Maybe the HTTP
+ * Server does not know websockets. */
+ if (!*error_buffer) {
+ /* set an error, if not yet set */
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ error_buffer,
+ error_buffer_size,
+ "Unexpected server reply");
+ }
+
+ DEBUG_TRACE("Websocket client connect error: %s\r\n", error_buffer);
+ mg_close_connection(conn);
+ return NULL;
+ }
+
+ thread_data = (struct websocket_client_thread_data *)mg_calloc_ctx(
+ 1, sizeof(struct websocket_client_thread_data), conn->phys_ctx);
+ if (!thread_data) {
+ DEBUG_TRACE("%s\r\n", "Out of memory");
+ mg_close_connection(conn);
+ return NULL;
+ }
+
+ thread_data->conn = conn;
+ thread_data->data_handler = data_func;
+ thread_data->close_handler = close_func;
+ thread_data->callback_data = user_data;
+
+ conn->phys_ctx->worker_threadids =
+ (pthread_t *)mg_calloc_ctx(1, sizeof(pthread_t), conn->phys_ctx);
+ if (!conn->phys_ctx->worker_threadids) {
+ DEBUG_TRACE("%s\r\n", "Out of memory");
+ mg_free(thread_data);
+ mg_close_connection(conn);
+ return NULL;
+ }
+
+ /* Now upgrade to ws/wss client context */
+ conn->phys_ctx->user_data = user_data;
+ conn->phys_ctx->context_type = CONTEXT_WS_CLIENT;
+ conn->phys_ctx->cfg_worker_threads = 1; /* one worker thread */
+
+ /* Start a thread to read the websocket client connection
+ * This thread will automatically stop when mg_disconnect is
+ * called on the client connection */
+ if (mg_start_thread_with_id(websocket_client_thread,
+ thread_data,
+ conn->phys_ctx->worker_threadids)
+ != 0) {
+ conn->phys_ctx->cfg_worker_threads = 0;
+ mg_free(thread_data);
+ mg_close_connection(conn);
+ conn = NULL;
+ DEBUG_TRACE("%s",
+ "Websocket client connect thread could not be started\r\n");
+ }
+
+#else
+ /* Appease "unused parameter" warnings */
+ (void)host;
+ (void)port;
+ (void)use_ssl;
+ (void)error_buffer;
+ (void)error_buffer_size;
+ (void)path;
+ (void)origin;
+ (void)user_data;
+ (void)data_func;
+ (void)close_func;
+#endif
+
+ return conn;
+}
+
+
+/* Prepare connection data structure */
+static void
+init_connection(struct mg_connection *conn)
+{
+ /* Is keep alive allowed by the server */
+ int keep_alive_enabled =
+ !mg_strcasecmp(conn->dom_ctx->config[ENABLE_KEEP_ALIVE], "yes");
+
+ if (!keep_alive_enabled) {
+ conn->must_close = 1;
+ }
+
+ /* Important: on new connection, reset the receiving buffer. Credit
+ * goes to crule42. */
+ conn->data_len = 0;
+ conn->handled_requests = 0;
+ mg_set_user_connection_data(conn, NULL);
+
+#if defined(USE_SERVER_STATS)
+ conn->conn_state = 2; /* init */
+#endif
+
+ /* call the init_connection callback if assigned */
+ if (conn->phys_ctx->callbacks.init_connection != NULL) {
+ if (conn->phys_ctx->context_type == CONTEXT_SERVER) {
+ void *conn_data = NULL;
+ conn->phys_ctx->callbacks.init_connection(conn, &conn_data);
+ mg_set_user_connection_data(conn, conn_data);
+ }
+ }
+}
+
+
+/* Process a connection - may handle multiple requests
+ * using the same connection.
+ * Must be called with a valid connection (conn and
+ * conn->phys_ctx must be valid).
+ */
+static void
+process_new_connection(struct mg_connection *conn)
+{
+ struct mg_request_info *ri = &conn->request_info;
+ int keep_alive, discard_len;
+ char ebuf[100];
+ const char *hostend;
+ int reqerr, uri_type;
+
+#if defined(USE_SERVER_STATS)
+ int mcon = mg_atomic_inc(&(conn->phys_ctx->active_connections));
+ mg_atomic_add(&(conn->phys_ctx->total_connections), 1);
+ if (mcon > (conn->phys_ctx->max_connections)) {
+ /* could use atomic compare exchange, but this
+ * seems overkill for statistics data */
+ conn->phys_ctx->max_connections = mcon;
+ }
+#endif
+
+ init_connection(conn);
+
+ DEBUG_TRACE("Start processing connection from %s",
+ conn->request_info.remote_addr);
+
+ /* Loop over multiple requests sent using the same connection
+ * (while "keep alive"). */
+ do {
+
+ DEBUG_TRACE("calling get_request (%i times for this connection)",
+ conn->handled_requests + 1);
+
+#if defined(USE_SERVER_STATS)
+ conn->conn_state = 3; /* ready */
+#endif
+
+ if (!get_request(conn, ebuf, sizeof(ebuf), &reqerr)) {
+ /* The request sent by the client could not be understood by
+ * the server, or it was incomplete or a timeout. Send an
+ * error message and close the connection. */
+ if (reqerr > 0) {
+ DEBUG_ASSERT(ebuf[0] != '\0');
+ mg_send_http_error(conn, reqerr, "%s", ebuf);
+ }
+ } else if (strcmp(ri->http_version, "1.0")
+ && strcmp(ri->http_version, "1.1")) {
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ sizeof(ebuf),
+ "Bad HTTP version: [%s]",
+ ri->http_version);
+ mg_send_http_error(conn, 505, "%s", ebuf);
+ }
+
+ if (ebuf[0] == '\0') {
+ uri_type = get_uri_type(conn->request_info.request_uri);
+ switch (uri_type) {
+ case 1:
+ /* Asterisk */
+ conn->request_info.local_uri = NULL;
+ break;
+ case 2:
+ /* relative uri */
+ conn->request_info.local_uri = conn->request_info.request_uri;
+ break;
+ case 3:
+ case 4:
+ /* absolute uri (with/without port) */
+ hostend = get_rel_url_at_current_server(
+ conn->request_info.request_uri, conn);
+ if (hostend) {
+ conn->request_info.local_uri = hostend;
+ } else {
+ conn->request_info.local_uri = NULL;
+ }
+ break;
+ default:
+ mg_snprintf(conn,
+ NULL, /* No truncation check for ebuf */
+ ebuf,
+ sizeof(ebuf),
+ "Invalid URI");
+ mg_send_http_error(conn, 400, "%s", ebuf);
+ conn->request_info.local_uri = NULL;
+ break;
+ }
+
+#if defined(MG_LEGACY_INTERFACE)
+ /* Legacy before split into local_uri and request_uri */
+ conn->request_info.uri = conn->request_info.local_uri;
+#endif
+ }
+
+ DEBUG_TRACE("http: %s, error: %s",
+ (ri->http_version ? ri->http_version : "none"),
+ (ebuf[0] ? ebuf : "none"));
+
+ if (ebuf[0] == '\0') {
+ if (conn->request_info.local_uri) {
+
+/* handle request to local server */
+#if defined(USE_SERVER_STATS)
+ conn->conn_state = 4; /* processing */
+#endif
+ handle_request(conn);
+
+#if defined(USE_SERVER_STATS)
+ conn->conn_state = 5; /* processed */
+
+ mg_atomic_add(&(conn->phys_ctx->total_data_read),
+ conn->consumed_content);
+ mg_atomic_add(&(conn->phys_ctx->total_data_written),
+ conn->num_bytes_sent);
+#endif
+
+ DEBUG_TRACE("%s", "handle_request done");
+
+ if (conn->phys_ctx->callbacks.end_request != NULL) {
+ conn->phys_ctx->callbacks.end_request(conn,
+ conn->status_code);
+ DEBUG_TRACE("%s", "end_request callback done");
+ }
+ log_access(conn);
+ } else {
+ /* TODO: handle non-local request (PROXY) */
+ conn->must_close = 1;
+ }
+ } else {
+ conn->must_close = 1;
+ }
+
+ if (ri->remote_user != NULL) {
+ mg_free((void *)ri->remote_user);
+ /* Important! When having connections with and without auth
+ * would cause double free and then crash */
+ ri->remote_user = NULL;
+ }
+
+ /* NOTE(lsm): order is important here. should_keep_alive() call
+ * is using parsed request, which will be invalid after
+ * memmove's below.
+ * Therefore, memorize should_keep_alive() result now for later
+ * use in loop exit condition. */
+ /* Enable it only if this request is completely discardable. */
+ keep_alive = (conn->phys_ctx->stop_flag == 0) && should_keep_alive(conn)
+ && (conn->content_len >= 0) && (conn->request_len > 0)
+ && ((conn->is_chunked == 4)
+ || (!conn->is_chunked
+ && ((conn->consumed_content == conn->content_len)
+ || ((conn->request_len + conn->content_len)
+ <= conn->data_len))));
+
+ if (keep_alive) {
+ /* Discard all buffered data for this request */
+ discard_len =
+ ((conn->request_len + conn->content_len) < conn->data_len)
+ ? (int)(conn->request_len + conn->content_len)
+ : conn->data_len;
+ conn->data_len -= discard_len;
+ if (conn->data_len > 0) {
+ DEBUG_TRACE("discard_len = %d", discard_len);
+ memmove(conn->buf,
+ conn->buf + discard_len,
+ (size_t)conn->data_len);
+ }
+ }
+
+ DEBUG_ASSERT(conn->data_len >= 0);
+ DEBUG_ASSERT(conn->data_len <= conn->buf_size);
+
+ if ((conn->data_len < 0) || (conn->data_len > conn->buf_size)) {
+ DEBUG_TRACE("internal error: data_len = %li, buf_size = %li",
+ (long int)conn->data_len,
+ (long int)conn->buf_size);
+ break;
+ }
+
+ conn->handled_requests++;
+
+ } while (keep_alive);
+
+ DEBUG_TRACE("Done processing connection from %s (%f sec)",
+ conn->request_info.remote_addr,
+ difftime(time(NULL), conn->conn_birth_time));
+
+ close_connection(conn);
+
+#if defined(USE_SERVER_STATS)
+ mg_atomic_add(&(conn->phys_ctx->total_requests), conn->handled_requests);
+ mg_atomic_dec(&(conn->phys_ctx->active_connections));
+#endif
+}
+
+
+#if defined(ALTERNATIVE_QUEUE)
+
+static void
+produce_socket(struct mg_context *ctx, const struct socket *sp)
+{
+ unsigned int i;
+
+ while (!ctx->stop_flag) {
+ for (i = 0; i < ctx->cfg_worker_threads; i++) {
+ /* find a free worker slot and signal it */
+ if (ctx->client_socks[i].in_use == 2) {
+ (void)pthread_mutex_lock(&ctx->thread_mutex);
+ if ((ctx->client_socks[i].in_use == 2) && !ctx->stop_flag) {
+ ctx->client_socks[i] = *sp;
+ ctx->client_socks[i].in_use = 1;
+ /* socket has been moved to the consumer */
+ (void)pthread_mutex_unlock(&ctx->thread_mutex);
+ (void)event_signal(ctx->client_wait_events[i]);
+ return;
+ }
+ (void)pthread_mutex_unlock(&ctx->thread_mutex);
+ }
+ }
+ /* queue is full */
+ mg_sleep(1);
+ }
+ /* must consume */
+ set_blocking_mode(sp->sock);
+ closesocket(sp->sock);
+}
+
+
+static int
+consume_socket(struct mg_context *ctx, struct socket *sp, int thread_index)
+{
+ DEBUG_TRACE("%s", "going idle");
+ (void)pthread_mutex_lock(&ctx->thread_mutex);
+ ctx->client_socks[thread_index].in_use = 2;
+ (void)pthread_mutex_unlock(&ctx->thread_mutex);
+
+ event_wait(ctx->client_wait_events[thread_index]);
+
+ (void)pthread_mutex_lock(&ctx->thread_mutex);
+ *sp = ctx->client_socks[thread_index];
+ if (ctx->stop_flag) {
+ (void)pthread_mutex_unlock(&ctx->thread_mutex);
+ if (sp->in_use == 1) {
+ /* must consume */
+ set_blocking_mode(sp->sock);
+ closesocket(sp->sock);
+ }
+ return 0;
+ }
+ (void)pthread_mutex_unlock(&ctx->thread_mutex);
+ if (sp->in_use == 1) {
+ DEBUG_TRACE("grabbed socket %d, going busy", sp->sock);
+ return 1;
+ }
+ /* must not reach here */
+ DEBUG_ASSERT(0);
+ return 0;
+}
+
+#else /* ALTERNATIVE_QUEUE */
+
+/* Worker threads take accepted socket from the queue */
+static int
+consume_socket(struct mg_context *ctx, struct socket *sp, int thread_index)
+{
+#define QUEUE_SIZE(ctx) ((int)(ARRAY_SIZE(ctx->queue)))
+
+ (void)thread_index;
+
+ (void)pthread_mutex_lock(&ctx->thread_mutex);
+ DEBUG_TRACE("%s", "going idle");
+
+ /* If the queue is empty, wait. We're idle at this point. */
+ while ((ctx->sq_head == ctx->sq_tail) && (ctx->stop_flag == 0)) {
+ pthread_cond_wait(&ctx->sq_full, &ctx->thread_mutex);
+ }
+
+ /* If we're stopping, sq_head may be equal to sq_tail. */
+ if (ctx->sq_head > ctx->sq_tail) {
+ /* Copy socket from the queue and increment tail */
+ *sp = ctx->queue[ctx->sq_tail % QUEUE_SIZE(ctx)];
+ ctx->sq_tail++;
+
+ DEBUG_TRACE("grabbed socket %d, going busy", sp ? sp->sock : -1);
+
+ /* Wrap pointers if needed */
+ while (ctx->sq_tail > QUEUE_SIZE(ctx)) {
+ ctx->sq_tail -= QUEUE_SIZE(ctx);
+ ctx->sq_head -= QUEUE_SIZE(ctx);
+ }
+ }
+
+ (void)pthread_cond_signal(&ctx->sq_empty);
+ (void)pthread_mutex_unlock(&ctx->thread_mutex);
+
+ return !ctx->stop_flag;
+#undef QUEUE_SIZE
+}
+
+
+/* Master thread adds accepted socket to a queue */
+static void
+produce_socket(struct mg_context *ctx, const struct socket *sp)
+{
+#define QUEUE_SIZE(ctx) ((int)(ARRAY_SIZE(ctx->queue)))
+ if (!ctx) {
+ return;
+ }
+ (void)pthread_mutex_lock(&ctx->thread_mutex);
+
+ /* If the queue is full, wait */
+ while ((ctx->stop_flag == 0)
+ && (ctx->sq_head - ctx->sq_tail >= QUEUE_SIZE(ctx))) {
+ (void)pthread_cond_wait(&ctx->sq_empty, &ctx->thread_mutex);
+ }
+
+ if (ctx->sq_head - ctx->sq_tail < QUEUE_SIZE(ctx)) {
+ /* Copy socket to the queue and increment head */
+ ctx->queue[ctx->sq_head % QUEUE_SIZE(ctx)] = *sp;
+ ctx->sq_head++;
+ DEBUG_TRACE("queued socket %d", sp ? sp->sock : -1);
+ }
+
+ (void)pthread_cond_signal(&ctx->sq_full);
+ (void)pthread_mutex_unlock(&ctx->thread_mutex);
+#undef QUEUE_SIZE
+}
+#endif /* ALTERNATIVE_QUEUE */
+
+
+static void
+worker_thread_run(struct mg_connection *conn)
+{
+ struct mg_context *ctx = conn->phys_ctx;
+ int thread_index;
+ struct mg_workerTLS tls;
+
+#if defined(MG_LEGACY_INTERFACE)
+ uint32_t addr;
+#endif
+
+ mg_set_thread_name("worker");
+
+ tls.is_master = 0;
+ tls.thread_idx = (unsigned)mg_atomic_inc(&thread_idx_max);
+#if defined(_WIN32)
+ tls.pthread_cond_helper_mutex = CreateEvent(NULL, FALSE, FALSE, NULL);
+#endif
+
+ /* Initialize thread local storage before calling any callback */
+ pthread_setspecific(sTlsKey, &tls);
+
+ /* Check if there is a user callback */
+ if (ctx->callbacks.init_thread) {
+ /* call init_thread for a worker thread (type 1), and store the return
+ * value */
+ tls.user_ptr = ctx->callbacks.init_thread(ctx, 1);
+ } else {
+ /* No callback: set user pointer to NULL */
+ tls.user_ptr = NULL;
+ }
+
+ /* Connection structure has been pre-allocated */
+ thread_index = (int)(conn - ctx->worker_connections);
+ if ((thread_index < 0)
+ || ((unsigned)thread_index >= (unsigned)ctx->cfg_worker_threads)) {
+ mg_cry_ctx_internal(ctx,
+ "Internal error: Invalid worker index %i",
+ thread_index);
+ return;
+ }
+
+ /* Request buffers are not pre-allocated. They are private to the
+ * request and do not contain any state information that might be
+ * of interest to anyone observing a server status. */
+ conn->buf = (char *)mg_malloc_ctx(ctx->max_request_size, conn->phys_ctx);
+ if (conn->buf == NULL) {
+ mg_cry_ctx_internal(
+ ctx,
+ "Out of memory: Cannot allocate buffer for worker %i",
+ thread_index);
+ return;
+ }
+ conn->buf_size = (int)ctx->max_request_size;
+
+ conn->dom_ctx = &(ctx->dd); /* Use default domain and default host */
+ conn->host = NULL; /* until we have more information. */
+
+ conn->tls_user_ptr = tls.user_ptr; /* store ptr for quick access */
+
+ conn->request_info.user_data = ctx->user_data;
+ /* Allocate a mutex for this connection to allow communication both
+ * within the request handler and from elsewhere in the application
+ */
+ if (0 != pthread_mutex_init(&conn->mutex, &pthread_mutex_attr)) {
+ mg_free(conn->buf);
+ mg_cry_ctx_internal(ctx, "%s", "Cannot create mutex");
+ return;
+ }
+
+#if defined(USE_SERVER_STATS)
+ conn->conn_state = 1; /* not consumed */
+#endif
+
+ /* Call consume_socket() even when ctx->stop_flag > 0, to let it
+ * signal sq_empty condvar to wake up the master waiting in
+ * produce_socket() */
+ while (consume_socket(ctx, &conn->client, thread_index)) {
+
+ conn->conn_birth_time = time(NULL);
+
+/* Fill in IP, port info early so even if SSL setup below fails,
+ * error handler would have the corresponding info.
+ * Thanks to Johannes Winkelmann for the patch.
+ */
+#if defined(USE_IPV6)
+ if (conn->client.rsa.sa.sa_family == AF_INET6) {
+ conn->request_info.remote_port =
+ ntohs(conn->client.rsa.sin6.sin6_port);
+ } else
+#endif
+ {
+ conn->request_info.remote_port =
+ ntohs(conn->client.rsa.sin.sin_port);
+ }
+
+ sockaddr_to_string(conn->request_info.remote_addr,
+ sizeof(conn->request_info.remote_addr),
+ &conn->client.rsa);
+
+ DEBUG_TRACE("Start processing connection from %s",
+ conn->request_info.remote_addr);
+
+ conn->request_info.is_ssl = conn->client.is_ssl;
+
+ if (conn->client.is_ssl) {
+#if !defined(NO_SSL)
+ /* HTTPS connection */
+ if (sslize(conn,
+ conn->dom_ctx->ssl_ctx,
+ SSL_accept,
+ &(conn->phys_ctx->stop_flag),
+ NULL)) {
+ /* conn->dom_ctx is set in get_request */
+
+ /* Get SSL client certificate information (if set) */
+ ssl_get_client_cert_info(conn);
+
+ /* process HTTPS connection */
+ process_new_connection(conn);
+
+ /* Free client certificate info */
+ if (conn->request_info.client_cert) {
+ mg_free((void *)(conn->request_info.client_cert->subject));
+ mg_free((void *)(conn->request_info.client_cert->issuer));
+ mg_free((void *)(conn->request_info.client_cert->serial));
+ mg_free((void *)(conn->request_info.client_cert->finger));
+ /* Free certificate memory */
+ X509_free(
+ (X509 *)conn->request_info.client_cert->peer_cert);
+ conn->request_info.client_cert->peer_cert = 0;
+ conn->request_info.client_cert->subject = 0;
+ conn->request_info.client_cert->issuer = 0;
+ conn->request_info.client_cert->serial = 0;
+ conn->request_info.client_cert->finger = 0;
+ mg_free(conn->request_info.client_cert);
+ conn->request_info.client_cert = 0;
+ }
+ } else {
+ /* make sure the connection is cleaned up on SSL failure */
+ close_connection(conn);
+ }
+#endif
+ } else {
+ /* process HTTP connection */
+ process_new_connection(conn);
+ }
+
+ DEBUG_TRACE("%s", "Connection closed");
+ }
+
+
+ /* Call exit thread user callback */
+ if (ctx->callbacks.exit_thread) {
+ ctx->callbacks.exit_thread(ctx, 1, tls.user_ptr);
+ }
+
+ /* delete thread local storage objects */
+ pthread_setspecific(sTlsKey, NULL);
+#if defined(_WIN32)
+ CloseHandle(tls.pthread_cond_helper_mutex);
+#endif
+ pthread_mutex_destroy(&conn->mutex);
+
+ /* Free the request buffer. */
+ conn->buf_size = 0;
+ mg_free(conn->buf);
+ conn->buf = NULL;
+
+#if defined(USE_SERVER_STATS)
+ conn->conn_state = 9; /* done */
+#endif
+
+ DEBUG_TRACE("%s", "exiting");
+}
+
+
+/* Threads have different return types on Windows and Unix. */
+#if defined(_WIN32)
+static unsigned __stdcall worker_thread(void *thread_func_param)
+{
+ worker_thread_run((struct mg_connection *)thread_func_param);
+ return 0;
+}
+#else
+static void *
+worker_thread(void *thread_func_param)
+{
+ struct sigaction sa;
+
+ /* Ignore SIGPIPE */
+ memset(&sa, 0, sizeof(sa));
+ sa.sa_handler = SIG_IGN;
+ sigaction(SIGPIPE, &sa, NULL);
+
+ worker_thread_run((struct mg_connection *)thread_func_param);
+ return NULL;
+}
+#endif /* _WIN32 */
+
+
+/* This is an internal function, thus all arguments are expected to be
+ * valid - a NULL check is not required. */
+static void
+accept_new_connection(const struct socket *listener, struct mg_context *ctx)
+{
+ struct socket so;
+ char src_addr[IP_ADDR_STR_LEN];
+ socklen_t len = sizeof(so.rsa);
+ int on = 1;
+
+ if ((so.sock = accept(listener->sock, &so.rsa.sa, &len))
+ == INVALID_SOCKET) {
+ } else if (!check_acl(ctx, ntohl(*(uint32_t *)&so.rsa.sin.sin_addr))) {
+ sockaddr_to_string(src_addr, sizeof(src_addr), &so.rsa);
+ mg_cry_ctx_internal(ctx,
+ "%s: %s is not allowed to connect",
+ __func__,
+ src_addr);
+ closesocket(so.sock);
+ } else {
+ /* Put so socket structure into the queue */
+ DEBUG_TRACE("Accepted socket %d", (int)so.sock);
+ set_close_on_exec(so.sock, NULL, ctx);
+ so.is_ssl = listener->is_ssl;
+ so.ssl_redir = listener->ssl_redir;
+ if (getsockname(so.sock, &so.lsa.sa, &len) != 0) {
+ mg_cry_ctx_internal(ctx,
+ "%s: getsockname() failed: %s",
+ __func__,
+ strerror(ERRNO));
+ }
+
+ /* Set TCP keep-alive. This is needed because if HTTP-level
+ * keep-alive
+ * is enabled, and client resets the connection, server won't get
+ * TCP FIN or RST and will keep the connection open forever. With
+ * TCP keep-alive, next keep-alive handshake will figure out that
+ * the client is down and will close the server end.
+ * Thanks to Igor Klopov who suggested the patch. */
+ if (setsockopt(so.sock,
+ SOL_SOCKET,
+ SO_KEEPALIVE,
+ (SOCK_OPT_TYPE)&on,
+ sizeof(on))
+ != 0) {
+ mg_cry_ctx_internal(
+ ctx,
+ "%s: setsockopt(SOL_SOCKET SO_KEEPALIVE) failed: %s",
+ __func__,
+ strerror(ERRNO));
+ }
+
+ /* Disable TCP Nagle's algorithm. Normally TCP packets are coalesced
+ * to effectively fill up the underlying IP packet payload and
+ * reduce the overhead of sending lots of small buffers. However
+ * this hurts the server's throughput (ie. operations per second)
+ * when HTTP 1.1 persistent connections are used and the responses
+ * are relatively small (eg. less than 1400 bytes).
+ */
+ if ((ctx->dd.config[CONFIG_TCP_NODELAY] != NULL)
+ && (!strcmp(ctx->dd.config[CONFIG_TCP_NODELAY], "1"))) {
+ if (set_tcp_nodelay(so.sock, 1) != 0) {
+ mg_cry_ctx_internal(
+ ctx,
+ "%s: setsockopt(IPPROTO_TCP TCP_NODELAY) failed: %s",
+ __func__,
+ strerror(ERRNO));
+ }
+ }
+
+ /* The "non blocking" property should already be
+ * inherited from the parent socket. Set it for
+ * non-compliant socket implementations. */
+ set_non_blocking_mode(so.sock);
+
+ so.in_use = 0;
+ produce_socket(ctx, &so);
+ }
+}
+
+
+static void
+master_thread_run(struct mg_context *ctx)
+{
+ struct mg_workerTLS tls;
+ struct mg_pollfd *pfd;
+ unsigned int i;
+ unsigned int workerthreadcount;
+
+ if (!ctx) {
+ return;
+ }
+
+ mg_set_thread_name("master");
+
+/* Increase priority of the master thread */
+#if defined(_WIN32)
+ SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_ABOVE_NORMAL);
+#elif defined(USE_MASTER_THREAD_PRIORITY)
+ int min_prio = sched_get_priority_min(SCHED_RR);
+ int max_prio = sched_get_priority_max(SCHED_RR);
+ if ((min_prio >= 0) && (max_prio >= 0)
+ && ((USE_MASTER_THREAD_PRIORITY) <= max_prio)
+ && ((USE_MASTER_THREAD_PRIORITY) >= min_prio)) {
+ struct sched_param sched_param = {0};
+ sched_param.sched_priority = (USE_MASTER_THREAD_PRIORITY);
+ pthread_setschedparam(pthread_self(), SCHED_RR, &sched_param);
+ }
+#endif
+
+/* Initialize thread local storage */
+#if defined(_WIN32)
+ tls.pthread_cond_helper_mutex = CreateEvent(NULL, FALSE, FALSE, NULL);
+#endif
+ tls.is_master = 1;
+ pthread_setspecific(sTlsKey, &tls);
+
+ if (ctx->callbacks.init_thread) {
+ /* Callback for the master thread (type 0) */
+ tls.user_ptr = ctx->callbacks.init_thread(ctx, 0);
+ } else {
+ tls.user_ptr = NULL;
+ }
+
+ /* Server starts *now* */
+ ctx->start_time = time(NULL);
+
+ /* Start the server */
+ pfd = ctx->listening_socket_fds;
+ while (ctx->stop_flag == 0) {
+ for (i = 0; i < ctx->num_listening_sockets; i++) {
+ pfd[i].fd = ctx->listening_sockets[i].sock;
+ pfd[i].events = POLLIN;
+ }
+
+ if (poll(pfd, ctx->num_listening_sockets, 200) > 0) {
+ for (i = 0; i < ctx->num_listening_sockets; i++) {
+ /* NOTE(lsm): on QNX, poll() returns POLLRDNORM after the
+ * successful poll, and POLLIN is defined as
+ * (POLLRDNORM | POLLRDBAND)
+ * Therefore, we're checking pfd[i].revents & POLLIN, not
+ * pfd[i].revents == POLLIN. */
+ if ((ctx->stop_flag == 0) && (pfd[i].revents & POLLIN)) {
+ accept_new_connection(&ctx->listening_sockets[i], ctx);
+ }
+ }
+ }
+ }
+
+ /* Here stop_flag is 1 - Initiate shutdown. */
+ DEBUG_TRACE("%s", "stopping workers");
+
+ /* Stop signal received: somebody called mg_stop. Quit. */
+ close_all_listening_sockets(ctx);
+
+ /* Wakeup workers that are waiting for connections to handle. */
+#if defined(ALTERNATIVE_QUEUE)
+ for (i = 0; i < ctx->cfg_worker_threads; i++) {
+ event_signal(ctx->client_wait_events[i]);
+ }
+#else
+ (void)pthread_mutex_lock(&ctx->thread_mutex);
+ pthread_cond_broadcast(&ctx->sq_full);
+ (void)pthread_mutex_unlock(&ctx->thread_mutex);
+#endif
+
+ /* Join all worker threads to avoid leaking threads. */
+ workerthreadcount = ctx->cfg_worker_threads;
+ for (i = 0; i < workerthreadcount; i++) {
+ if (ctx->worker_threadids[i] != 0) {
+ mg_join_thread(ctx->worker_threadids[i]);
+ }
+ }
+
+#if defined(USE_LUA)
+ /* Free Lua state of lua background task */
+ if (ctx->lua_background_state) {
+ lua_State *lstate = (lua_State *)ctx->lua_background_state;
+ lua_getglobal(lstate, LUABACKGROUNDPARAMS);
+ if (lua_istable(lstate, -1)) {
+ reg_boolean(lstate, "shutdown", 1);
+ lua_pop(lstate, 1);
+ mg_sleep(2);
+ }
+ lua_close(lstate);
+ ctx->lua_background_state = 0;
+ }
+#endif
+
+ DEBUG_TRACE("%s", "exiting");
+
+ /* call exit thread callback */
+ if (ctx->callbacks.exit_thread) {
+ /* Callback for the master thread (type 0) */
+ ctx->callbacks.exit_thread(ctx, 0, tls.user_ptr);
+ }
+
+#if defined(_WIN32)
+ CloseHandle(tls.pthread_cond_helper_mutex);
+#endif
+ pthread_setspecific(sTlsKey, NULL);
+
+ /* Signal mg_stop() that we're done.
+ * WARNING: This must be the very last thing this
+ * thread does, as ctx becomes invalid after this line. */
+ ctx->stop_flag = 2;
+}
+
+
+/* Threads have different return types on Windows and Unix. */
+#if defined(_WIN32)
+static unsigned __stdcall master_thread(void *thread_func_param)
+{
+ master_thread_run((struct mg_context *)thread_func_param);
+ return 0;
+}
+#else
+static void *
+master_thread(void *thread_func_param)
+{
+ struct sigaction sa;
+
+ /* Ignore SIGPIPE */
+ memset(&sa, 0, sizeof(sa));
+ sa.sa_handler = SIG_IGN;
+ sigaction(SIGPIPE, &sa, NULL);
+
+ master_thread_run((struct mg_context *)thread_func_param);
+ return NULL;
+}
+#endif /* _WIN32 */
+
+
+static void
+free_context(struct mg_context *ctx)
+{
+ int i;
+ struct mg_handler_info *tmp_rh;
+
+ if (ctx == NULL) {
+ return;
+ }
+
+ if (ctx->callbacks.exit_context) {
+ ctx->callbacks.exit_context(ctx);
+ }
+
+ /* All threads exited, no sync is needed. Destroy thread mutex and
+ * condvars
+ */
+ (void)pthread_mutex_destroy(&ctx->thread_mutex);
+#if defined(ALTERNATIVE_QUEUE)
+ mg_free(ctx->client_socks);
+ for (i = 0; (unsigned)i < ctx->cfg_worker_threads; i++) {
+ event_destroy(ctx->client_wait_events[i]);
+ }
+ mg_free(ctx->client_wait_events);
+#else
+ (void)pthread_cond_destroy(&ctx->sq_empty);
+ (void)pthread_cond_destroy(&ctx->sq_full);
+#endif
+
+ /* Destroy other context global data structures mutex */
+ (void)pthread_mutex_destroy(&ctx->nonce_mutex);
+
+#if defined(USE_TIMERS)
+ timers_exit(ctx);
+#endif
+
+ /* Deallocate config parameters */
+ for (i = 0; i < NUM_OPTIONS; i++) {
+ if (ctx->dd.config[i] != NULL) {
+#if defined(_MSC_VER)
+#pragma warning(suppress : 6001)
+#endif
+ mg_free(ctx->dd.config[i]);
+ }
+ }
+
+ /* Deallocate request handlers */
+ while (ctx->dd.handlers) {
+ tmp_rh = ctx->dd.handlers;
+ ctx->dd.handlers = tmp_rh->next;
+ if (tmp_rh->handler_type == REQUEST_HANDLER) {
+ pthread_cond_destroy(&tmp_rh->refcount_cond);
+ pthread_mutex_destroy(&tmp_rh->refcount_mutex);
+ }
+ mg_free(tmp_rh->uri);
+ mg_free(tmp_rh);
+ }
+
+#if !defined(NO_SSL)
+ /* Deallocate SSL context */
+ if (ctx->dd.ssl_ctx != NULL) {
+ void *ssl_ctx = (void *)ctx->dd.ssl_ctx;
+ int callback_ret =
+ (ctx->callbacks.external_ssl_ctx == NULL)
+ ? 0
+ : (ctx->callbacks.external_ssl_ctx(&ssl_ctx, ctx->user_data));
+
+ if (callback_ret == 0) {
+ SSL_CTX_free(ctx->dd.ssl_ctx);
+ }
+ /* else: ignore error and ommit SSL_CTX_free in case
+ * callback_ret is 1 */
+ }
+#endif /* !NO_SSL */
+
+ /* Deallocate worker thread ID array */
+ mg_free(ctx->worker_threadids);
+
+ /* Deallocate worker thread ID array */
+ mg_free(ctx->worker_connections);
+
+ /* deallocate system name string */
+ mg_free(ctx->systemName);
+
+ /* Deallocate context itself */
+ mg_free(ctx);
+}
+
+
+void
+mg_stop(struct mg_context *ctx)
+{
+ pthread_t mt;
+ if (!ctx) {
+ return;
+ }
+
+ /* We don't use a lock here. Calling mg_stop with the same ctx from
+ * two threads is not allowed. */
+ mt = ctx->masterthreadid;
+ if (mt == 0) {
+ return;
+ }
+
+ ctx->masterthreadid = 0;
+
+ /* Set stop flag, so all threads know they have to exit. */
+ ctx->stop_flag = 1;
+
+ /* Wait until everything has stopped. */
+ while (ctx->stop_flag != 2) {
+ (void)mg_sleep(10);
+ }
+
+ mg_join_thread(mt);
+ free_context(ctx);
+
+#if defined(_WIN32)
+ (void)WSACleanup();
+#endif /* _WIN32 */
+}
+
+
+static void
+get_system_name(char **sysName)
+{
+#if defined(_WIN32)
+#if !defined(__SYMBIAN32__)
+#if defined(_WIN32_WCE)
+ *sysName = mg_strdup("WinCE");
+#else
+ char name[128];
+ DWORD dwVersion = 0;
+ DWORD dwMajorVersion = 0;
+ DWORD dwMinorVersion = 0;
+ DWORD dwBuild = 0;
+ BOOL wowRet, isWoW = FALSE;
+
+#if defined(_MSC_VER)
+#pragma warning(push)
+/* GetVersion was declared deprecated */
+#pragma warning(disable : 4996)
+#endif
+ dwVersion = GetVersion();
+#if defined(_MSC_VER)
+#pragma warning(pop)
+#endif
+
+ dwMajorVersion = (DWORD)(LOBYTE(LOWORD(dwVersion)));
+ dwMinorVersion = (DWORD)(HIBYTE(LOWORD(dwVersion)));
+ dwBuild = ((dwVersion < 0x80000000) ? (DWORD)(HIWORD(dwVersion)) : 0);
+ (void)dwBuild;
+
+ wowRet = IsWow64Process(GetCurrentProcess(), &isWoW);
+
+ sprintf(name,
+ "Windows %u.%u%s",
+ (unsigned)dwMajorVersion,
+ (unsigned)dwMinorVersion,
+ (wowRet ? (isWoW ? " (WoW64)" : "") : " (?)"));
+
+ *sysName = mg_strdup(name);
+#endif
+#else
+ *sysName = mg_strdup("Symbian");
+#endif
+#else
+ struct utsname name;
+ memset(&name, 0, sizeof(name));
+ uname(&name);
+ *sysName = mg_strdup(name.sysname);
+#endif
+}
+
+
+struct mg_context *
+mg_start(const struct mg_callbacks *callbacks,
+ void *user_data,
+ const char **options)
+{
+ struct mg_context *ctx;
+ const char *name, *value, *default_value;
+ int idx, ok, workerthreadcount;
+ unsigned int i;
+ int itmp;
+ void (*exit_callback)(const struct mg_context *ctx) = 0;
+
+ struct mg_workerTLS tls;
+
+#if defined(_WIN32)
+ WSADATA data;
+ WSAStartup(MAKEWORD(2, 2), &data);
+#endif /* _WIN32 */
+
+ /* Allocate context and initialize reasonable general case defaults. */
+ if ((ctx = (struct mg_context *)mg_calloc(1, sizeof(*ctx))) == NULL) {
+ return NULL;
+ }
+
+ /* Random number generator will initialize at the first call */
+ ctx->dd.auth_nonce_mask =
+ (uint64_t)get_random() ^ (uint64_t)(ptrdiff_t)(options);
+
+ if (mg_init_library_called == 0) {
+ /* Legacy INIT, if mg_start is called without mg_init_library.
+ * Note: This may cause a memory leak */
+ const char *ports_option =
+ config_options[LISTENING_PORTS].default_value;
+
+ if (options) {
+ const char **run_options = options;
+ const char *optname = config_options[LISTENING_PORTS].name;
+
+ /* Try to find the "listening_ports" option */
+ while (*run_options) {
+ if (!strcmp(*run_options, optname)) {
+ ports_option = run_options[1];
+ }
+ run_options += 2;
+ }
+ }
+
+ if (is_ssl_port_used(ports_option)) {
+ /* Initialize with SSL support */
+ mg_init_library(MG_FEATURES_TLS);
+ } else {
+ /* Initialize without SSL support */
+ mg_init_library(MG_FEATURES_DEFAULT);
+ }
+ }
+
+ tls.is_master = -1;
+ tls.thread_idx = (unsigned)mg_atomic_inc(&thread_idx_max);
+#if defined(_WIN32)
+ tls.pthread_cond_helper_mutex = NULL;
+#endif
+ pthread_setspecific(sTlsKey, &tls);
+
+ ok = (0 == pthread_mutex_init(&ctx->thread_mutex, &pthread_mutex_attr));
+#if !defined(ALTERNATIVE_QUEUE)
+ ok &= (0 == pthread_cond_init(&ctx->sq_empty, NULL));
+ ok &= (0 == pthread_cond_init(&ctx->sq_full, NULL));
+#endif
+ ok &= (0 == pthread_mutex_init(&ctx->nonce_mutex, &pthread_mutex_attr));
+ if (!ok) {
+ /* Fatal error - abort start. However, this situation should never
+ * occur in practice. */
+ mg_cry_ctx_internal(ctx,
+ "%s",
+ "Cannot initialize thread synchronization objects");
+ mg_free(ctx);
+ pthread_setspecific(sTlsKey, NULL);
+ return NULL;
+ }
+
+ if (callbacks) {
+ ctx->callbacks = *callbacks;
+ exit_callback = callbacks->exit_context;
+ ctx->callbacks.exit_context = 0;
+ }
+ ctx->user_data = user_data;
+ ctx->dd.handlers = NULL;
+ ctx->dd.next = NULL;
+
+#if defined(USE_LUA) && defined(USE_WEBSOCKET)
+ ctx->dd.shared_lua_websockets = NULL;
+#endif
+
+ /* Store options */
+ while (options && (name = *options++) != NULL) {
+ if ((idx = get_option_index(name)) == -1) {
+ mg_cry_ctx_internal(ctx, "Invalid option: %s", name);
+ free_context(ctx);
+ pthread_setspecific(sTlsKey, NULL);
+ return NULL;
+ } else if ((value = *options++) == NULL) {
+ mg_cry_ctx_internal(ctx, "%s: option value cannot be NULL", name);
+ free_context(ctx);
+ pthread_setspecific(sTlsKey, NULL);
+ return NULL;
+ }
+ if (ctx->dd.config[idx] != NULL) {
+ mg_cry_ctx_internal(ctx, "warning: %s: duplicate option", name);
+ mg_free(ctx->dd.config[idx]);
+ }
+ ctx->dd.config[idx] = mg_strdup_ctx(value, ctx);
+ DEBUG_TRACE("[%s] -> [%s]", name, value);
+ }
+
+ /* Set default value if needed */
+ for (i = 0; config_options[i].name != NULL; i++) {
+ default_value = config_options[i].default_value;
+ if ((ctx->dd.config[i] == NULL) && (default_value != NULL)) {
+ ctx->dd.config[i] = mg_strdup_ctx(default_value, ctx);
+ }
+ }
+
+ /* Request size option */
+ itmp = atoi(ctx->dd.config[MAX_REQUEST_SIZE]);
+ if (itmp < 1024) {
+ mg_cry_ctx_internal(ctx, "%s", "max_request_size too small");
+ free_context(ctx);
+ pthread_setspecific(sTlsKey, NULL);
+ return NULL;
+ }
+ ctx->max_request_size = (unsigned)itmp;
+
+ /* Worker thread count option */
+ workerthreadcount = atoi(ctx->dd.config[NUM_THREADS]);
+
+ if (workerthreadcount > MAX_WORKER_THREADS) {
+ mg_cry_ctx_internal(ctx, "%s", "Too many worker threads");
+ free_context(ctx);
+ pthread_setspecific(sTlsKey, NULL);
+ return NULL;
+ }
+
+ if (workerthreadcount <= 0) {
+ mg_cry_ctx_internal(ctx, "%s", "Invalid number of worker threads");
+ free_context(ctx);
+ pthread_setspecific(sTlsKey, NULL);
+ return NULL;
+ }
+
+/* Document root */
+#if defined(NO_FILES)
+ if (ctx->dd.config[DOCUMENT_ROOT] != NULL) {
+ mg_cry_ctx_internal(ctx, "%s", "Document root must not be set");
+ free_context(ctx);
+ pthread_setspecific(sTlsKey, NULL);
+ return NULL;
+ }
+#endif
+
+ get_system_name(&ctx->systemName);
+
+#if defined(USE_LUA)
+ /* If a Lua background script has been configured, start it. */
+ if (ctx->dd.config[LUA_BACKGROUND_SCRIPT] != NULL) {
+ char ebuf[256];
+ struct vec opt_vec;
+ struct vec eq_vec;
+ const char *sparams;
+ lua_State *state = mg_prepare_lua_context_script(
+ ctx->dd.config[LUA_BACKGROUND_SCRIPT], ctx, ebuf, sizeof(ebuf));
+ if (!state) {
+ mg_cry_ctx_internal(ctx, "lua_background_script error: %s", ebuf);
+ free_context(ctx);
+ pthread_setspecific(sTlsKey, NULL);
+ return NULL;
+ }
+ ctx->lua_background_state = (void *)state;
+
+ lua_newtable(state);
+ reg_boolean(state, "shutdown", 0);
+
+ sparams = ctx->dd.config[LUA_BACKGROUND_SCRIPT_PARAMS];
+
+ while ((sparams = next_option(sparams, &opt_vec, &eq_vec)) != NULL) {
+ reg_llstring(
+ state, opt_vec.ptr, opt_vec.len, eq_vec.ptr, eq_vec.len);
+ if (mg_strncasecmp(sparams, opt_vec.ptr, opt_vec.len) == 0)
+ break;
+ }
+ lua_setglobal(state, LUABACKGROUNDPARAMS);
+
+ } else {
+ ctx->lua_background_state = 0;
+ }
+#endif
+
+ /* NOTE(lsm): order is important here. SSL certificates must
+ * be initialized before listening ports. UID must be set last. */
+ if (!set_gpass_option(ctx, NULL) ||
+#if !defined(NO_SSL)
+ !init_ssl_ctx(ctx, NULL) ||
+#endif
+ !set_ports_option(ctx) ||
+#if !defined(_WIN32)
+ !set_uid_option(ctx) ||
+#endif
+ !set_acl_option(ctx)) {
+ free_context(ctx);
+ pthread_setspecific(sTlsKey, NULL);
+ return NULL;
+ }
+
+ ctx->cfg_worker_threads = ((unsigned int)(workerthreadcount));
+ ctx->worker_threadids = (pthread_t *)mg_calloc_ctx(ctx->cfg_worker_threads,
+ sizeof(pthread_t),
+ ctx);
+
+ if (ctx->worker_threadids == NULL) {
+ mg_cry_ctx_internal(ctx,
+ "%s",
+ "Not enough memory for worker thread ID array");
+ free_context(ctx);
+ pthread_setspecific(sTlsKey, NULL);
+ return NULL;
+ }
+ ctx->worker_connections =
+ (struct mg_connection *)mg_calloc_ctx(ctx->cfg_worker_threads,
+ sizeof(struct mg_connection),
+ ctx);
+ if (ctx->worker_connections == NULL) {
+ mg_cry_ctx_internal(
+ ctx, "%s", "Not enough memory for worker thread connection array");
+ free_context(ctx);
+ pthread_setspecific(sTlsKey, NULL);
+ return NULL;
+ }
+
+
+#if defined(ALTERNATIVE_QUEUE)
+ ctx->client_wait_events =
+ (void **)mg_calloc_ctx(sizeof(ctx->client_wait_events[0]),
+ ctx->cfg_worker_threads,
+ ctx);
+ if (ctx->client_wait_events == NULL) {
+ mg_cry_ctx_internal(ctx,
+ "%s",
+ "Not enough memory for worker event array");
+ mg_free(ctx->worker_threadids);
+ free_context(ctx);
+ pthread_setspecific(sTlsKey, NULL);
+ return NULL;
+ }
+
+ ctx->client_socks =
+ (struct socket *)mg_calloc_ctx(sizeof(ctx->client_socks[0]),
+ ctx->cfg_worker_threads,
+ ctx);
+ if (ctx->client_socks == NULL) {
+ mg_cry_ctx_internal(ctx,
+ "%s",
+ "Not enough memory for worker socket array");
+ mg_free(ctx->client_wait_events);
+ mg_free(ctx->worker_threadids);
+ free_context(ctx);
+ pthread_setspecific(sTlsKey, NULL);
+ return NULL;
+ }
+
+ for (i = 0; (unsigned)i < ctx->cfg_worker_threads; i++) {
+ ctx->client_wait_events[i] = event_create();
+ if (ctx->client_wait_events[i] == 0) {
+ mg_cry_ctx_internal(ctx, "Error creating worker event %i", i);
+ while (i > 0) {
+ i--;
+ event_destroy(ctx->client_wait_events[i]);
+ }
+ mg_free(ctx->client_socks);
+ mg_free(ctx->client_wait_events);
+ mg_free(ctx->worker_threadids);
+ free_context(ctx);
+ pthread_setspecific(sTlsKey, NULL);
+ return NULL;
+ }
+ }
+#endif
+
+
+#if defined(USE_TIMERS)
+ if (timers_init(ctx) != 0) {
+ mg_cry_ctx_internal(ctx, "%s", "Error creating timers");
+ free_context(ctx);
+ pthread_setspecific(sTlsKey, NULL);
+ return NULL;
+ }
+#endif
+
+ /* Context has been created - init user libraries */
+ if (ctx->callbacks.init_context) {
+ ctx->callbacks.init_context(ctx);
+ }
+ ctx->callbacks.exit_context = exit_callback;
+ ctx->context_type = CONTEXT_SERVER; /* server context */
+
+ /* Start master (listening) thread */
+ mg_start_thread_with_id(master_thread, ctx, &ctx->masterthreadid);
+
+ /* Start worker threads */
+ for (i = 0; i < ctx->cfg_worker_threads; i++) {
+ /* worker_thread sets up the other fields */
+ ctx->worker_connections[i].phys_ctx = ctx;
+ if (mg_start_thread_with_id(worker_thread,
+ &ctx->worker_connections[i],
+ &ctx->worker_threadids[i])
+ != 0) {
+
+ /* thread was not created */
+ if (i > 0) {
+ mg_cry_ctx_internal(ctx,
+ "Cannot start worker thread %i: error %ld",
+ i + 1,
+ (long)ERRNO);
+ } else {
+ mg_cry_ctx_internal(ctx,
+ "Cannot create threads: error %ld",
+ (long)ERRNO);
+ free_context(ctx);
+ pthread_setspecific(sTlsKey, NULL);
+ return NULL;
+ }
+ break;
+ }
+ }
+
+ pthread_setspecific(sTlsKey, NULL);
+ return ctx;
+}
+
+
+#if defined(MG_EXPERIMENTAL_INTERFACES)
+/* Add an additional domain to an already running web server. */
+int
+mg_start_domain(struct mg_context *ctx, const char **options)
+{
+ const char *name;
+ const char *value;
+ const char *default_value;
+ struct mg_domain_context *new_dom;
+ struct mg_domain_context *dom;
+ int idx, i;
+
+ if ((ctx == NULL) || (ctx->stop_flag != 0) || (options == NULL)) {
+ return -1;
+ }
+
+ new_dom = (struct mg_domain_context *)
+ mg_calloc_ctx(1, sizeof(struct mg_domain_context), ctx);
+
+ if (!new_dom) {
+ /* Out of memory */
+ return -6;
+ }
+
+ /* Store options - TODO: unite duplicate code */
+ while (options && (name = *options++) != NULL) {
+ if ((idx = get_option_index(name)) == -1) {
+ mg_cry_ctx_internal(ctx, "Invalid option: %s", name);
+ mg_free(new_dom);
+ return -2;
+ } else if ((value = *options++) == NULL) {
+ mg_cry_ctx_internal(ctx, "%s: option value cannot be NULL", name);
+ mg_free(new_dom);
+ return -2;
+ }
+ if (new_dom->config[idx] != NULL) {
+ mg_cry_ctx_internal(ctx, "warning: %s: duplicate option", name);
+ mg_free(new_dom->config[idx]);
+ }
+ new_dom->config[idx] = mg_strdup_ctx(value, ctx);
+ DEBUG_TRACE("[%s] -> [%s]", name, value);
+ }
+
+ /* Authentication domain is mandatory */
+ /* TODO: Maybe use a new option hostname? */
+ if (!new_dom->config[AUTHENTICATION_DOMAIN]) {
+ mg_cry_ctx_internal(ctx, "%s", "authentication domain required");
+ mg_free(new_dom);
+ return -4;
+ }
+
+ /* Set default value if needed. Take the config value from
+ * ctx as a default value. */
+ for (i = 0; config_options[i].name != NULL; i++) {
+ default_value = ctx->dd.config[i];
+ if ((new_dom->config[i] == NULL) && (default_value != NULL)) {
+ new_dom->config[i] = mg_strdup_ctx(default_value, ctx);
+ }
+ }
+
+ new_dom->handlers = NULL;
+ new_dom->next = NULL;
+ new_dom->nonce_count = 0;
+ new_dom->auth_nonce_mask =
+ (uint64_t)get_random() ^ ((uint64_t)get_random() << 31);
+
+#if defined(USE_LUA) && defined(USE_WEBSOCKET)
+ new_dom->shared_lua_websockets = NULL;
+#endif
+
+ if (!init_ssl_ctx(ctx, new_dom)) {
+ /* Init SSL failed */
+ mg_free(new_dom);
+ return -3;
+ }
+
+ /* Add element to linked list. */
+ mg_lock_context(ctx);
+
+ idx = 0;
+ dom = &(ctx->dd);
+ for (;;) {
+ if (!mg_strcasecmp(new_dom->config[AUTHENTICATION_DOMAIN],
+ dom->config[AUTHENTICATION_DOMAIN])) {
+ /* Domain collision */
+ mg_cry_ctx_internal(ctx,
+ "domain %s already in use",
+ new_dom->config[AUTHENTICATION_DOMAIN]);
+ mg_free(new_dom);
+ return -5;
+ }
+
+ /* Count number of domains */
+ idx++;
+
+ if (dom->next == NULL) {
+ dom->next = new_dom;
+ break;
+ }
+ dom = dom->next;
+ }
+
+ mg_unlock_context(ctx);
+
+ /* Return domain number */
+ return idx;
+}
+#endif
+
+
+/* Feature check API function */
+unsigned
+mg_check_feature(unsigned feature)
+{
+ static const unsigned feature_set = 0
+/* Set bits for available features according to API documentation.
+ * This bit mask is created at compile time, according to the active
+ * preprocessor defines. It is a single const value at runtime. */
+#if !defined(NO_FILES)
+ | MG_FEATURES_FILES
+#endif
+#if !defined(NO_SSL)
+ | MG_FEATURES_SSL
+#endif
+#if !defined(NO_CGI)
+ | MG_FEATURES_CGI
+#endif
+#if defined(USE_IPV6)
+ | MG_FEATURES_IPV6
+#endif
+#if defined(USE_WEBSOCKET)
+ | MG_FEATURES_WEBSOCKET
+#endif
+#if defined(USE_LUA)
+ | MG_FEATURES_LUA
+#endif
+#if defined(USE_DUKTAPE)
+ | MG_FEATURES_SSJS
+#endif
+#if !defined(NO_CACHING)
+ | MG_FEATURES_CACHE
+#endif
+#if defined(USE_SERVER_STATS)
+ | MG_FEATURES_STATS
+#endif
+#if defined(USE_ZLIB)
+ | MG_FEATURES_COMPRESSION
+#endif
+
+/* Set some extra bits not defined in the API documentation.
+ * These bits may change without further notice. */
+#if defined(MG_LEGACY_INTERFACE)
+ | 0x00008000u
+#endif
+#if defined(MG_EXPERIMENTAL_INTERFACES)
+ | 0x00004000u
+#endif
+#if defined(MEMORY_DEBUGGING)
+ | 0x00001000u
+#endif
+#if defined(USE_TIMERS)
+ | 0x00020000u
+#endif
+#if !defined(NO_NONCE_CHECK)
+ | 0x00040000u
+#endif
+#if !defined(NO_POPEN)
+ | 0x00080000u
+#endif
+ ;
+ return (feature & feature_set);
+}
+
+
+static size_t
+mg_str_append(char **dst, char *end, const char *src)
+{
+ size_t len = strlen(src);
+ if (*dst != end) {
+ /* Append src if enough space, or close dst. */
+ if ((size_t)(end - *dst) > len) {
+ strcpy(*dst, src);
+ *dst += len;
+ } else {
+ *dst = end;
+ }
+ }
+ return len;
+}
+
+
+/* Get system information. It can be printed or stored by the caller.
+ * Return the size of available information. */
+int
+mg_get_system_info(char *buffer, int buflen)
+{
+ char *end, *append_eoobj = NULL, block[256];
+ size_t system_info_length = 0;
+
+#if defined(_WIN32)
+ static const char eol[] = "\r\n", eoobj[] = "\r\n}\r\n";
+#else
+ static const char eol[] = "\n", eoobj[] = "\n}\n";
+#endif
+
+ if ((buffer == NULL) || (buflen < 1)) {
+ buflen = 0;
+ end = buffer;
+ } else {
+ *buffer = 0;
+ end = buffer + buflen;
+ }
+ if (buflen > (int)(sizeof(eoobj) - 1)) {
+ /* has enough space to append eoobj */
+ append_eoobj = buffer;
+ end -= sizeof(eoobj) - 1;
+ }
+
+ system_info_length += mg_str_append(&buffer, end, "{");
+
+ /* Server version */
+ {
+ const char *version = mg_version();
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ "%s\"version\" : \"%s\"",
+ eol,
+ version);
+ system_info_length += mg_str_append(&buffer, end, block);
+ }
+
+ /* System info */
+ {
+#if defined(_WIN32)
+ DWORD dwVersion = 0;
+ DWORD dwMajorVersion = 0;
+ DWORD dwMinorVersion = 0;
+ SYSTEM_INFO si;
+
+ GetSystemInfo(&si);
+
+#if defined(_MSC_VER)
+#pragma warning(push)
+/* GetVersion was declared deprecated */
+#pragma warning(disable : 4996)
+#endif
+ dwVersion = GetVersion();
+#if defined(_MSC_VER)
+#pragma warning(pop)
+#endif
+
+ dwMajorVersion = (DWORD)(LOBYTE(LOWORD(dwVersion)));
+ dwMinorVersion = (DWORD)(HIBYTE(LOWORD(dwVersion)));
+
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"os\" : \"Windows %u.%u\"",
+ eol,
+ (unsigned)dwMajorVersion,
+ (unsigned)dwMinorVersion);
+ system_info_length += mg_str_append(&buffer, end, block);
+
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"cpu\" : \"type %u, cores %u, mask %x\"",
+ eol,
+ (unsigned)si.wProcessorArchitecture,
+ (unsigned)si.dwNumberOfProcessors,
+ (unsigned)si.dwActiveProcessorMask);
+ system_info_length += mg_str_append(&buffer, end, block);
+#else
+ struct utsname name;
+ memset(&name, 0, sizeof(name));
+ uname(&name);
+
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"os\" : \"%s %s (%s) - %s\"",
+ eol,
+ name.sysname,
+ name.version,
+ name.release,
+ name.machine);
+ system_info_length += mg_str_append(&buffer, end, block);
+#endif
+ }
+
+ /* Features */
+ {
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"features\" : %lu"
+ ",%s\"feature_list\" : \"Server:%s%s%s%s%s%s%s%s%s\"",
+ eol,
+ (unsigned long)mg_check_feature(0xFFFFFFFFu),
+ eol,
+ mg_check_feature(MG_FEATURES_FILES) ? " Files" : "",
+ mg_check_feature(MG_FEATURES_SSL) ? " HTTPS" : "",
+ mg_check_feature(MG_FEATURES_CGI) ? " CGI" : "",
+ mg_check_feature(MG_FEATURES_IPV6) ? " IPv6" : "",
+ mg_check_feature(MG_FEATURES_WEBSOCKET) ? " WebSockets"
+ : "",
+ mg_check_feature(MG_FEATURES_LUA) ? " Lua" : "",
+ mg_check_feature(MG_FEATURES_SSJS) ? " JavaScript" : "",
+ mg_check_feature(MG_FEATURES_CACHE) ? " Cache" : "",
+ mg_check_feature(MG_FEATURES_STATS) ? " Stats" : "");
+ system_info_length += mg_str_append(&buffer, end, block);
+
+#if defined(USE_LUA)
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"lua_version\" : \"%u (%s)\"",
+ eol,
+ (unsigned)LUA_VERSION_NUM,
+ LUA_RELEASE);
+ system_info_length += mg_str_append(&buffer, end, block);
+#endif
+#if defined(USE_DUKTAPE)
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"javascript\" : \"Duktape %u.%u.%u\"",
+ eol,
+ (unsigned)DUK_VERSION / 10000,
+ ((unsigned)DUK_VERSION / 100) % 100,
+ (unsigned)DUK_VERSION % 100);
+ system_info_length += mg_str_append(&buffer, end, block);
+#endif
+ }
+
+ /* Build date */
+ {
+#if defined(GCC_DIAGNOSTIC)
+#if GCC_VERSION >= 40900
+#pragma GCC diagnostic push
+/* Disable bogus compiler warning -Wdate-time, appeared in gcc5 */
+#pragma GCC diagnostic ignored "-Wdate-time"
+#endif
+#endif
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"build\" : \"%s\"",
+ eol,
+ __DATE__);
+
+#if defined(GCC_DIAGNOSTIC)
+#if GCC_VERSION >= 40900
+#pragma GCC diagnostic pop
+#endif
+#endif
+
+ system_info_length += mg_str_append(&buffer, end, block);
+ }
+
+
+ /* Compiler information */
+ /* http://sourceforge.net/p/predef/wiki/Compilers/ */
+ {
+#if defined(_MSC_VER)
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"compiler\" : \"MSC: %u (%u)\"",
+ eol,
+ (unsigned)_MSC_VER,
+ (unsigned)_MSC_FULL_VER);
+ system_info_length += mg_str_append(&buffer, end, block);
+#elif defined(__MINGW64__)
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"compiler\" : \"MinGW64: %u.%u\"",
+ eol,
+ (unsigned)__MINGW64_VERSION_MAJOR,
+ (unsigned)__MINGW64_VERSION_MINOR);
+ system_info_length += mg_str_append(&buffer, end, block);
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"compiler\" : \"MinGW32: %u.%u\"",
+ eol,
+ (unsigned)__MINGW32_MAJOR_VERSION,
+ (unsigned)__MINGW32_MINOR_VERSION);
+ system_info_length += mg_str_append(&buffer, end, block);
+#elif defined(__MINGW32__)
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"compiler\" : \"MinGW32: %u.%u\"",
+ eol,
+ (unsigned)__MINGW32_MAJOR_VERSION,
+ (unsigned)__MINGW32_MINOR_VERSION);
+ system_info_length += mg_str_append(&buffer, end, block);
+#elif defined(__clang__)
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"compiler\" : \"clang: %u.%u.%u (%s)\"",
+ eol,
+ __clang_major__,
+ __clang_minor__,
+ __clang_patchlevel__,
+ __clang_version__);
+ system_info_length += mg_str_append(&buffer, end, block);
+#elif defined(__GNUC__)
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"compiler\" : \"gcc: %u.%u.%u\"",
+ eol,
+ (unsigned)__GNUC__,
+ (unsigned)__GNUC_MINOR__,
+ (unsigned)__GNUC_PATCHLEVEL__);
+ system_info_length += mg_str_append(&buffer, end, block);
+#elif defined(__INTEL_COMPILER)
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"compiler\" : \"Intel C/C++: %u\"",
+ eol,
+ (unsigned)__INTEL_COMPILER);
+ system_info_length += mg_str_append(&buffer, end, block);
+#elif defined(__BORLANDC__)
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"compiler\" : \"Borland C: 0x%x\"",
+ eol,
+ (unsigned)__BORLANDC__);
+ system_info_length += mg_str_append(&buffer, end, block);
+#elif defined(__SUNPRO_C)
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"compiler\" : \"Solaris: 0x%x\"",
+ eol,
+ (unsigned)__SUNPRO_C);
+ system_info_length += mg_str_append(&buffer, end, block);
+#else
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"compiler\" : \"other\"",
+ eol);
+ system_info_length += mg_str_append(&buffer, end, block);
+#endif
+ }
+
+ /* Determine 32/64 bit data mode.
+ * see https://en.wikipedia.org/wiki/64-bit_computing */
+ {
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"data_model\" : \"int:%u/%u/%u/%u, float:%u/%u/%u, "
+ "char:%u/%u, "
+ "ptr:%u, size:%u, time:%u\"",
+ eol,
+ (unsigned)sizeof(short),
+ (unsigned)sizeof(int),
+ (unsigned)sizeof(long),
+ (unsigned)sizeof(long long),
+ (unsigned)sizeof(float),
+ (unsigned)sizeof(double),
+ (unsigned)sizeof(long double),
+ (unsigned)sizeof(char),
+ (unsigned)sizeof(wchar_t),
+ (unsigned)sizeof(void *),
+ (unsigned)sizeof(size_t),
+ (unsigned)sizeof(time_t));
+ system_info_length += mg_str_append(&buffer, end, block);
+ }
+
+ /* Terminate string */
+ if (append_eoobj) {
+ strcat(append_eoobj, eoobj);
+ }
+ system_info_length += sizeof(eoobj) - 1;
+
+ return (int)system_info_length;
+}
+
+
+/* Get context information. It can be printed or stored by the caller.
+ * Return the size of available information. */
+int
+mg_get_context_info(const struct mg_context *ctx, char *buffer, int buflen)
+{
+#if defined(USE_SERVER_STATS)
+ char *end, *append_eoobj = NULL, block[256];
+ size_t context_info_length = 0;
+
+#if defined(_WIN32)
+ static const char eol[] = "\r\n", eoobj[] = "\r\n}\r\n";
+#else
+ static const char eol[] = "\n", eoobj[] = "\n}\n";
+#endif
+ struct mg_memory_stat *ms = get_memory_stat((struct mg_context *)ctx);
+
+ if ((buffer == NULL) || (buflen < 1)) {
+ buflen = 0;
+ end = buffer;
+ } else {
+ *buffer = 0;
+ end = buffer + buflen;
+ }
+ if (buflen > (int)(sizeof(eoobj) - 1)) {
+ /* has enough space to append eoobj */
+ append_eoobj = buffer;
+ end -= sizeof(eoobj) - 1;
+ }
+
+ context_info_length += mg_str_append(&buffer, end, "{");
+
+ if (ms) { /* <-- should be always true */
+ /* Memory information */
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ "%s\"memory\" : {%s"
+ "\"blocks\" : %i,%s"
+ "\"used\" : %" INT64_FMT ",%s"
+ "\"maxUsed\" : %" INT64_FMT "%s"
+ "}",
+ eol,
+ eol,
+ ms->blockCount,
+ eol,
+ ms->totalMemUsed,
+ eol,
+ ms->maxMemUsed,
+ eol);
+ context_info_length += mg_str_append(&buffer, end, block);
+ }
+
+ if (ctx) {
+ /* Declare all variables at begin of the block, to comply
+ * with old C standards. */
+ char start_time_str[64] = {0};
+ char now_str[64] = {0};
+ time_t start_time = ctx->start_time;
+ time_t now = time(NULL);
+
+ /* Connections information */
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"connections\" : {%s"
+ "\"active\" : %i,%s"
+ "\"maxActive\" : %i,%s"
+ "\"total\" : %" INT64_FMT "%s"
+ "}",
+ eol,
+ eol,
+ ctx->active_connections,
+ eol,
+ ctx->max_connections,
+ eol,
+ ctx->total_connections,
+ eol);
+ context_info_length += mg_str_append(&buffer, end, block);
+
+ /* Requests information */
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"requests\" : {%s"
+ "\"total\" : %" INT64_FMT "%s"
+ "}",
+ eol,
+ eol,
+ ctx->total_requests,
+ eol);
+ context_info_length += mg_str_append(&buffer, end, block);
+
+ /* Data information */
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"data\" : {%s"
+ "\"read\" : %" INT64_FMT ",%s"
+ "\"written\" : %" INT64_FMT "%s"
+ "}",
+ eol,
+ eol,
+ ctx->total_data_read,
+ eol,
+ ctx->total_data_written,
+ eol);
+ context_info_length += mg_str_append(&buffer, end, block);
+
+ /* Execution time information */
+ gmt_time_string(start_time_str,
+ sizeof(start_time_str) - 1,
+ &start_time);
+ gmt_time_string(now_str, sizeof(now_str) - 1, &now);
+
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ ",%s\"time\" : {%s"
+ "\"uptime\" : %.0f,%s"
+ "\"start\" : \"%s\",%s"
+ "\"now\" : \"%s\"%s"
+ "}",
+ eol,
+ eol,
+ difftime(now, start_time),
+ eol,
+ start_time_str,
+ eol,
+ now_str,
+ eol);
+ context_info_length += mg_str_append(&buffer, end, block);
+ }
+
+ /* Terminate string */
+ if (append_eoobj) {
+ strcat(append_eoobj, eoobj);
+ }
+ context_info_length += sizeof(eoobj) - 1;
+
+ return (int)context_info_length;
+#else
+ (void)ctx;
+ if ((buffer != NULL) && (buflen > 0)) {
+ *buffer = 0;
+ }
+ return 0;
+#endif
+}
+
+
+#if defined(MG_EXPERIMENTAL_INTERFACES)
+/* Get connection information. It can be printed or stored by the caller.
+ * Return the size of available information. */
+int
+mg_get_connection_info(const struct mg_context *ctx,
+ int idx,
+ char *buffer,
+ int buflen)
+{
+ const struct mg_connection *conn;
+ const struct mg_request_info *ri;
+ char *end, *append_eoobj = NULL, block[256];
+ size_t connection_info_length = 0;
+ int state = 0;
+ const char *state_str = "unknown";
+
+#if defined(_WIN32)
+ static const char eol[] = "\r\n", eoobj[] = "\r\n}\r\n";
+#else
+ static const char eol[] = "\n", eoobj[] = "\n}\n";
+#endif
+
+ if ((buffer == NULL) || (buflen < 1)) {
+ buflen = 0;
+ end = buffer;
+ } else {
+ *buffer = 0;
+ end = buffer + buflen;
+ }
+ if (buflen > (int)(sizeof(eoobj) - 1)) {
+ /* has enough space to append eoobj */
+ append_eoobj = buffer;
+ end -= sizeof(eoobj) - 1;
+ }
+
+ if ((ctx == NULL) || (idx < 0)) {
+ /* Parameter error */
+ return 0;
+ }
+
+ if ((unsigned)idx >= ctx->cfg_worker_threads) {
+ /* Out of range */
+ return 0;
+ }
+
+ /* Take connection [idx]. This connection is not locked in
+ * any way, so some other thread might use it. */
+ conn = (ctx->worker_connections) + idx;
+
+ /* Initialize output string */
+ connection_info_length += mg_str_append(&buffer, end, "{");
+
+ /* Init variables */
+ ri = &(conn->request_info);
+
+#if defined(USE_SERVER_STATS)
+ state = conn->conn_state;
+
+ /* State as string */
+ switch (state) {
+ case 0:
+ state_str = "undefined";
+ break;
+ case 1:
+ state_str = "not used";
+ break;
+ case 2:
+ state_str = "init";
+ break;
+ case 3:
+ state_str = "ready";
+ break;
+ case 4:
+ state_str = "processing";
+ break;
+ case 5:
+ state_str = "processed";
+ break;
+ case 6:
+ state_str = "to close";
+ break;
+ case 7:
+ state_str = "closing";
+ break;
+ case 8:
+ state_str = "closed";
+ break;
+ case 9:
+ state_str = "done";
+ break;
+ }
+#endif
+
+ /* Connection info */
+ if ((state >= 3) && (state < 9)) {
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ "%s\"connection\" : {%s"
+ "\"remote\" : {%s"
+ "\"protocol\" : \"%s\",%s"
+ "\"addr\" : \"%s\",%s"
+ "\"port\" : %u%s"
+ "},%s"
+ "\"handled_requests\" : %u%s"
+ "}",
+ eol,
+ eol,
+ eol,
+ get_proto_name(conn),
+ eol,
+ ri->remote_addr,
+ eol,
+ ri->remote_port,
+ eol,
+ eol,
+ conn->handled_requests,
+ eol);
+ connection_info_length += mg_str_append(&buffer, end, block);
+ }
+
+ /* Request info */
+ if ((state >= 4) && (state < 6)) {
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ "%s%s\"request_info\" : {%s"
+ "\"method\" : \"%s\",%s"
+ "\"uri\" : \"%s\",%s"
+ "\"query\" : %s%s%s%s"
+ "}",
+ (connection_info_length > 1 ? "," : ""),
+ eol,
+ eol,
+ ri->request_method,
+ eol,
+ ri->request_uri,
+ eol,
+ ri->query_string ? "\"" : "",
+ ri->query_string ? ri->query_string : "null",
+ ri->query_string ? "\"" : "",
+ eol);
+ connection_info_length += mg_str_append(&buffer, end, block);
+ }
+
+ /* Execution time information */
+ if ((state >= 2) && (state < 9)) {
+ char start_time_str[64] = {0};
+ char now_str[64] = {0};
+ time_t start_time = conn->conn_birth_time;
+ time_t now = time(NULL);
+
+ gmt_time_string(start_time_str,
+ sizeof(start_time_str) - 1,
+ &start_time);
+ gmt_time_string(now_str, sizeof(now_str) - 1, &now);
+
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ "%s%s\"time\" : {%s"
+ "\"uptime\" : %.0f,%s"
+ "\"start\" : \"%s\",%s"
+ "\"now\" : \"%s\"%s"
+ "}",
+ (connection_info_length > 1 ? "," : ""),
+ eol,
+ eol,
+ difftime(now, start_time),
+ eol,
+ start_time_str,
+ eol,
+ now_str,
+ eol);
+ connection_info_length += mg_str_append(&buffer, end, block);
+ }
+
+ /* Remote user name */
+ if ((ri->remote_user) && (state < 9)) {
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ "%s%s\"user\" : {%s"
+ "\"name\" : \"%s\",%s"
+ "}",
+ (connection_info_length > 1 ? "," : ""),
+ eol,
+ eol,
+ ri->remote_user,
+ eol);
+ connection_info_length += mg_str_append(&buffer, end, block);
+ }
+
+ /* Data block */
+ if (state >= 3) {
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ "%s%s\"data\" : {%s"
+ "\"read\" : %" INT64_FMT ",%s"
+ "\"written\" : %" INT64_FMT "%s"
+ "}",
+ (connection_info_length > 1 ? "," : ""),
+ eol,
+ eol,
+ conn->consumed_content,
+ eol,
+ conn->num_bytes_sent,
+ eol);
+ connection_info_length += mg_str_append(&buffer, end, block);
+ }
+
+ /* State */
+ mg_snprintf(NULL,
+ NULL,
+ block,
+ sizeof(block),
+ "%s%s\"state\" : \"%s\"",
+ (connection_info_length > 1 ? "," : ""),
+ eol,
+ state_str);
+ connection_info_length += mg_str_append(&buffer, end, block);
+
+ /* Terminate string */
+ if (append_eoobj) {
+ strcat(append_eoobj, eoobj);
+ }
+ connection_info_length += sizeof(eoobj) - 1;
+
+ return (int)connection_info_length;
+}
+#endif
+
+
+/* Initialize this library. This function does not need to be thread safe.
+ */
+unsigned
+mg_init_library(unsigned features)
+{
+#if !defined(NO_SSL)
+ char ebuf[128];
+#endif
+
+ unsigned features_to_init = mg_check_feature(features & 0xFFu);
+ unsigned features_inited = features_to_init;
+
+ if (mg_init_library_called <= 0) {
+ /* Not initialized yet */
+ if (0 != pthread_mutex_init(&global_lock_mutex, NULL)) {
+ return 0;
+ }
+ }
+
+ mg_global_lock();
+
+ if (mg_init_library_called <= 0) {
+ if (0 != pthread_key_create(&sTlsKey, tls_dtor)) {
+ /* Fatal error - abort start. However, this situation should
+ * never occur in practice. */
+ mg_global_unlock();
+ return 0;
+ }
+
+#if defined(_WIN32)
+ (void)pthread_mutex_init(&global_log_file_lock, &pthread_mutex_attr);
+#else
+ pthread_mutexattr_init(&pthread_mutex_attr);
+ pthread_mutexattr_settype(&pthread_mutex_attr, PTHREAD_MUTEX_RECURSIVE);
+#endif
+
+#if defined(USE_LUA)
+ lua_init_optional_libraries();
+#endif
+ }
+
+ mg_global_unlock();
+
+#if !defined(NO_SSL)
+ if (features_to_init & MG_FEATURES_SSL) {
+ if (!mg_ssl_initialized) {
+ if (initialize_ssl(ebuf, sizeof(ebuf))) {
+ mg_ssl_initialized = 1;
+ } else {
+ (void)ebuf;
+ DEBUG_TRACE("Initializing SSL failed: %s", ebuf);
+ features_inited &= ~((unsigned)(MG_FEATURES_SSL));
+ }
+ } else {
+ /* ssl already initialized */
+ }
+ }
+#endif
+
+ /* Start WinSock for Windows */
+ mg_global_lock();
+ if (mg_init_library_called <= 0) {
+#if defined(_WIN32)
+ WSADATA data;
+ WSAStartup(MAKEWORD(2, 2), &data);
+#endif /* _WIN32 */
+ mg_init_library_called = 1;
+ } else {
+ mg_init_library_called++;
+ }
+ mg_global_unlock();
+
+ return features_inited;
+}
+
+
+/* Un-initialize this library. */
+unsigned
+mg_exit_library(void)
+{
+ if (mg_init_library_called <= 0) {
+ return 0;
+ }
+
+ mg_global_lock();
+
+ mg_init_library_called--;
+ if (mg_init_library_called == 0) {
+#if defined(_WIN32)
+ (void)WSACleanup();
+#endif /* _WIN32 */
+#if !defined(NO_SSL)
+ if (mg_ssl_initialized) {
+ uninitialize_ssl();
+ mg_ssl_initialized = 0;
+ }
+#endif
+
+#if defined(_WIN32)
+ (void)pthread_mutex_destroy(&global_log_file_lock);
+#else
+ (void)pthread_mutexattr_destroy(&pthread_mutex_attr);
+#endif
+
+ (void)pthread_key_delete(sTlsKey);
+
+#if defined(USE_LUA)
+ lua_exit_optional_libraries();
+#endif
+
+ mg_global_unlock();
+ (void)pthread_mutex_destroy(&global_lock_mutex);
+ return 1;
+ }
+
+ mg_global_unlock();
+ return 1;
+}
+
+
+/* End of civetweb.c */