[libdatachannel] Add new port (#13704)

* libdatachannel port

* Fixed various things for pr.

* Update to v0.9.2

* Update to 0.9.4 and enable SRTP feature

* Add openssl dependency

* Fix usrsctp find_library

* Flip the sense of the websockets feature and use a manifest instead of CONTROL file.

* Need to update libjuice and libdatachannel but there is now a USE_SRTP option.

* Update libdatachannel for USE_SRTP Option

* Update libdatachannel to v0.10.1

Co-authored-by: Nemirtingas <nanaki89@hotmail.fr>
Co-authored-by: JackBoosY <yuzaiyang@beyondsoft.com>
Co-authored-by: Billy Robert O'Neal III <bion@microsoft.com>

3 files changed, 170 insertions, 0 deletions

diff --git a/ports/libdatachannel/fix-for-vcpkg.patch b/ports/libdatachannel/fix-for-vcpkg.patch
new file mode 100644
index 000000000..fc6c26adf
--- /dev/null
+++ b/ports/libdatachannel/fix-for-vcpkg.patch
@@ -0,0 +1,110 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index bed634b..fced56e 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -112,28 +112,18 @@ set(THREADS_PREFER_PTHREAD_FLAG TRUE)
+ find_package(Threads REQUIRED)
+ 
+ set(CMAKE_POLICY_DEFAULT_CMP0048 NEW)
+-add_subdirectory(deps/plog)
+-
+-option(sctp_build_programs 0)
+-option(sctp_build_shared_lib 0)
+-add_subdirectory(deps/usrsctp EXCLUDE_FROM_ALL)
+-if (MSYS OR MINGW)
+-	target_compile_definitions(usrsctp PUBLIC -DSCTP_STDINT_INCLUDE=<stdint.h>)
+-endif()
+-if (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
+-    target_compile_options(usrsctp PRIVATE -Wno-error=format-truncation)
+-endif()
+-add_library(Usrsctp::Usrsctp ALIAS usrsctp)
++find_library(USRSCTP_LIBRARY usrsctp REQUIRED)
++find_path(PLOG_INCLUDE_DIRS "plog/Appenders/AndroidAppender.h")
+ 
+ if (NO_WEBSOCKET)
+-	add_library(datachannel SHARED
++	add_library(datachannel
+ 		${LIBDATACHANNEL_SOURCES})
+ 	add_library(datachannel-static STATIC EXCLUDE_FROM_ALL
+ 		${LIBDATACHANNEL_SOURCES})
+ 	target_compile_definitions(datachannel PUBLIC RTC_ENABLE_WEBSOCKET=0)
+ 	target_compile_definitions(datachannel-static PUBLIC RTC_ENABLE_WEBSOCKET=0)
+ else()
+-	add_library(datachannel SHARED
++	add_library(datachannel
+ 		${LIBDATACHANNEL_SOURCES}
+ 		${LIBDATACHANNEL_WEBSOCKET_SOURCES})
+ 	add_library(datachannel-static STATIC EXCLUDE_FROM_ALL
+@@ -150,17 +140,17 @@ set_target_properties(datachannel-static PROPERTIES
+ 	VERSION ${PROJECT_VERSION}
+ 	CXX_STANDARD 17)
+ 
+-target_include_directories(datachannel PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include)
++target_include_directories(datachannel PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include> $<INSTALL_INTERFACE:include>)
+ target_include_directories(datachannel PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/include/rtc)
+ target_include_directories(datachannel PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src)
+-target_link_libraries(datachannel PUBLIC Threads::Threads plog::plog)
+-target_link_libraries(datachannel PRIVATE Usrsctp::Usrsctp)
++target_include_directories(datachannel PRIVATE ${PLOG_INCLUDE_DIRS})
++target_link_libraries(datachannel PUBLIC Threads::Threads ${USRSCTP_LIBRARY})
+ 
+ target_include_directories(datachannel-static PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include)
+ target_include_directories(datachannel-static PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/include/rtc)
+ target_include_directories(datachannel-static PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src)
+-target_link_libraries(datachannel-static PUBLIC Threads::Threads plog::plog)
+-target_link_libraries(datachannel-static PRIVATE Usrsctp::Usrsctp)
++target_include_directories(datachannel-static PRIVATE ${PLOG_INCLUDE_DIRS})
++target_link_libraries(datachannel-static PUBLIC Threads::Threads ${USRSCTP_LIBRARY})
+ 
+ if(WIN32)
+ 	target_link_libraries(datachannel PRIVATE ws2_32) # winsock2
+@@ -224,11 +214,11 @@ if (USE_NICE OR NOT USE_JUICE)
+ 	target_link_libraries(datachannel PRIVATE LibNice::LibNice)
+ 	target_link_libraries(datachannel-static PRIVATE LibNice::LibNice)
+ else()
+-	add_subdirectory(deps/libjuice EXCLUDE_FROM_ALL)
++    find_package(libjuice CONFIG REQUIRED)
+ 	target_compile_definitions(datachannel PRIVATE USE_NICE=0)
+ 	target_compile_definitions(datachannel-static PRIVATE USE_NICE=0)
+-	target_link_libraries(datachannel PRIVATE LibJuice::LibJuiceStatic)
+-	target_link_libraries(datachannel-static PRIVATE LibJuice::LibJuiceStatic)
++	target_link_libraries(datachannel PRIVATE LibJuice::juice)
++	target_link_libraries(datachannel-static PRIVATE LibJuice::juice)
+ endif()
+ 
+ if(RSA_KEY_BITS_2048)
+@@ -244,7 +234,11 @@ endif()
+ add_library(LibDataChannel::LibDataChannel ALIAS datachannel)
+ add_library(LibDataChannel::LibDataChannelStatic ALIAS datachannel-static)
+ 
+-install(TARGETS datachannel LIBRARY DESTINATION lib)
++install(TARGETS datachannel EXPORT libdatachannel-config
++  RUNTIME DESTINATION bin
++  LIBRARY DESTINATION lib
++  ARCHIVE DESTINATION lib
++)
+ install(FILES ${LIBDATACHANNEL_HEADERS} DESTINATION include/rtc)
+ 
+ if(NOT MSVC)
+@@ -306,3 +300,8 @@ if(NOT NO_EXAMPLES AND NOT CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
+ 	add_subdirectory(examples/copy-paste-capi)
+ endif()
+ 
++install(
++  EXPORT libdatachannel-config
++  NAMESPACE LibDatachannel::
++  DESTINATION share/cmake/libdatachannel
++)
+diff --git a/src/tcptransport.hpp b/src/tcptransport.hpp
+index 1447835..1c92686 100644
+--- a/src/tcptransport.hpp
++++ b/src/tcptransport.hpp
+@@ -29,7 +29,7 @@
+ #include <thread>
+ 
+ // Use the socket defines from libjuice
+-#include "../deps/libjuice/src/socket.h"
++#include <juice/src/socket.h>
+ 
+ namespace rtc {
+ 
diff --git a/ports/libdatachannel/portfile.cmake b/ports/libdatachannel/portfile.cmake
new file mode 100644
index 000000000..9fb73f372
--- /dev/null
+++ b/ports/libdatachannel/portfile.cmake
@@ -0,0 +1,34 @@
+vcpkg_from_github(

+    OUT_SOURCE_PATH SOURCE_PATH

+    REPO paullouisageneau/libdatachannel

+    REF v0.10.1

+    SHA512 195f564776b2a7ab6fe3a838d55be7fa03b72a5f08faaba5ddefac59ae1fff28f3ee0b9ed5dc17a7ef9155a1d30a61f8c593f2a108f60e415ffd213188e081bd

+    HEAD_REF master

+    PATCHES

+        fix-for-vcpkg.patch

+)

+

+vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS

+    INVERTED_FEATURES

+    ws NO_WEBSOCKET

+    srtp NO_MEDIA

+)

+

+vcpkg_configure_cmake(

+    SOURCE_PATH ${SOURCE_PATH}

+    PREFER_NINJA

+    OPTIONS

+        ${FEATURE_OPTIONS}

+        -DUSE_SYSTEM_SRTP=ON

+        -DNO_EXAMPLES=ON

+        -DNO_TESTS=ON

+)

+

+vcpkg_install_cmake()

+

+file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include")

+

+vcpkg_fixup_cmake_targets(CONFIG_PATH share/cmake/libdatachannel)

+vcpkg_fixup_pkgconfig()

+

+file(INSTALL ${SOURCE_PATH}/LICENSE DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT} RENAME copyright)

diff --git a/ports/libdatachannel/vcpkg.json b/ports/libdatachannel/vcpkg.json
new file mode 100644
index 000000000..79299fa5c
--- /dev/null
+++ b/ports/libdatachannel/vcpkg.json
@@ -0,0 +1,26 @@
+{
+  "name": "libdatachannel",
+  "version-string": "v0.10.1",
+  "description": "libdatachannel is a standalone implementation of WebRTC Data Channels, WebRTC Media Transport, and WebSockets in C++17 with C bindings for POSIX platforms (including GNU/Linux, Android, and Apple macOS) and Microsoft Windows.",
+  "homepage": "https://github.com/paullouisageneau/libdatachannel",
+  "dependencies": [
+    "libjuice",
+    "openssl",
+    "plog",
+    "usrsctp"
+  ],
+  "default-features": [
+    "ws"
+  ],
+  "features": {
+    "srtp": {
+      "description": "Use Cisco's libSRTP for media transport.",
+      "dependencies": [
+        "libsrtp"
+      ]
+    },
+    "ws": {
+      "description": "Web Socket support"
+    }
+  }
+}