makefile: remove some install targets

* Fix for missing AI_NUMERICSERV on < 10.6

* Do not use pthread_setname_np on < 10.6

.clang-format

@@ -0,0 +1,47 @@
+# https://releases.llvm.org/7.0.0/tools/clang/docs/ClangFormatStyleOptions.html
+
+---
+Language: Cpp
+
+BasedOnStyle: WebKit
+
+AlignAfterOpenBracket: Align
+AlignOperands: true
+AlignTrailingComments: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: true
+AllowShortFunctionsOnASingleLine: false
+AllowShortIfStatementsOnASingleLine: true
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakTemplateDeclarations: true
+BinPackArguments: false
+BinPackParameters: false
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Allman
+BreakConstructorInitializersBeforeComma: true
+ColumnLimit: 100
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+Cpp11BracedListStyle: true
+FixNamespaceComments: true
+IncludeBlocks:   Regroup
+IncludeCategories:
+  - Regex:           '^["<](stdafx|pch)\.h[">]$'
+    Priority:        -1
+  - Regex:           '^<Windows\.h>$'
+    Priority:        3
+  - Regex:           '^<(WinIoCtl|winhttp|Shellapi)\.h>$'
+    Priority:        4
+  - Regex:           '.*'
+    Priority:        2
+IndentCaseLabels: true
+IndentWidth: 4
+KeepEmptyLinesAtTheStartOfBlocks: false
+MaxEmptyLinesToKeep: 2
+NamespaceIndentation: All
+PenaltyReturnTypeOnItsOwnLine: 1000
+PointerAlignment: Left
+SpaceAfterTemplateKeyword: false
+SpaceAfterCStyleCast: true
+Standard: Cpp11
+UseTab: Never

.dockerignore

@@ -0,0 +1,5 @@
+build
+CMakeCache.txt
+ws/CMakeCache.txt
+test/build
+makefile

.github/workflows/cpp.yml

@@ -1,26 +0,0 @@
-name: C++ CI
-
-on: [push]
-
-jobs:
-  build_linux:
-
-    runs-on: ubuntu-latest
-    
-    steps:
-    - name: Clone source
-      run: git clone --recursive https://github.com/uNetworking/uWebSockets.git
-    - name: Build source
-      run: make -C uWebSockets
-      
-      
-  build_osx:
-
-    runs-on: macos-latest
-    
-    steps:
-    - name: Clone source
-      run: git clone --recursive https://github.com/uNetworking/uWebSockets.git
-    - name: Build source
-      run: make -C uWebSockets
-      

.github/workflows/docker.yml

@@ -0,0 +1,66 @@
+name: docker
+
+# When its time to do a release do a build for amd64
+# and push all of them to Docker Hub.
+# Only trigger on semver shaped tags.
+on:
+  push:
+    tags:
+      - "v*.*.*"
+
+jobs:
+  login:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Prepare
+        id: prep
+        run: |
+          DOCKER_IMAGE=machinezone/ws
+          VERSION=edge
+          if [[ $GITHUB_REF == refs/tags/* ]]; then
+            VERSION=${GITHUB_REF#refs/tags/v}
+          fi
+          if [ "${{ github.event_name }}" = "schedule" ]; then
+            VERSION=nightly
+          fi
+          TAGS="${DOCKER_IMAGE}:${VERSION}"
+          if [[ $VERSION =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
+            TAGS="$TAGS,${DOCKER_IMAGE}:latest"
+          fi
+          echo ::set-output name=tags::${TAGS}
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@master
+
+      - name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
+      - name: Login to GitHub Package Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GHCR_TOKEN }}
+
+      - name: Build and push
+        id: docker_build
+        uses: docker/build-push-action@v2-build-push
+        with:
+          builder: ${{ steps.buildx.outputs.name }}
+          context: .
+          file: ./Dockerfile
+          target: prod
+          platforms: linux/amd64
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.prep.outputs.tags }}
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache

.github/workflows/mkdocs.yml

@@ -0,0 +1,30 @@
+name: mkdocs
+on:
+  push:
+    branches:
+    - master
+    paths:
+    - 'docs/**'
+
+jobs:
+  linux:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python 3.8
+      uses: actions/setup-python@v1
+      with:
+        python-version: 3.8
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install mkdocs
+        pip install mkdocs-material
+        pip install pygments
+    - name: Build doc
+      run: |
+        git checkout master
+        git clean -dfx .
+        git fetch
+        git pull
+        mkdocs gh-deploy

.github/workflows/unittest_linux.yml

@@ -0,0 +1,15 @@
+name: linux
+on:
+  push:
+    paths-ignore:
+    - 'docs/**'
+  pull_request:
+
+jobs:
+  linux:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: seanmiddleditch/gha-setup-ninja@master
+    - name: make test
+      run: make -f makefile.dev test

.github/workflows/unittest_linux_asan.yml

@@ -0,0 +1,15 @@
+name: linux_asan
+on:
+  push:
+    paths-ignore:
+    - 'docs/**'
+  pull_request:
+
+jobs:
+  linux:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: seanmiddleditch/gha-setup-ninja@master
+    - name: make test_asan
+      run: make -f makefile.dev test_asan

.github/workflows/unittest_mac_tsan_mbedtls.yml

@@ -0,0 +1,17 @@
+name: mac_tsan_mbedtls
+on:
+  push:
+    paths-ignore:
+    - 'docs/**'
+  pull_request:
+
+jobs:
+  mac_tsan_mbedtls:
+    runs-on: macOS-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: seanmiddleditch/gha-setup-ninja@master
+    - name: install mbedtls
+      run: brew install mbedtls
+    - name: make test
+      run: make -f makefile.dev test_tsan_mbedtls

.github/workflows/unittest_mac_tsan_openssl.yml

@@ -0,0 +1,17 @@
+name: mac_tsan_openssl
+on:
+  push:
+    paths-ignore:
+    - 'docs/**'
+  pull_request:
+
+jobs:
+  mac_tsan_openssl:
+    runs-on: macOS-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: seanmiddleditch/gha-setup-ninja@master
+    - name: install openssl
+      run: brew install openssl@1.1
+    - name: make test
+      run: make -f makefile.dev test_tsan_openssl

.github/workflows/unittest_mac_tsan_sectransport.yml

@@ -0,0 +1,15 @@
+name: mac_tsan_sectransport
+on:
+  push:
+    paths-ignore:
+    - 'docs/**'
+  pull_request:
+
+jobs:
+  mac_tsan_sectransport:
+    runs-on: macOS-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: seanmiddleditch/gha-setup-ninja@master
+    - name: make test_tsan_sectransport
+      run: make -f makefile.dev test_tsan_sectransport

.github/workflows/unittest_uwp.yml

@@ -0,0 +1,45 @@
+name: uwp
+on:
+  push:
+    paths-ignore:
+    - 'docs/**'
+  pull_request:
+
+jobs:
+  uwp:
+    runs-on: windows-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: seanmiddleditch/gha-setup-vsdevenv@master
+    - uses: seanmiddleditch/gha-setup-ninja@master
+    - run: |
+        mkdir build
+        cd build
+        cmake -GNinja -DCMAKE_TOOLCHAIN_FILE=c:/vcpkg/scripts/buildsystems/vcpkg.cmake -DCMAKE_SYSTEM_NAME=WindowsStore -DCMAKE_SYSTEM_VERSION="10.0" -DCMAKE_CXX_COMPILER=cl.exe -DCMAKE_C_COMPILER=cl.exe -DUSE_TEST=1 -DUSE_ZLIB=0 ..
+    - run: |
+        cd build
+        ninja
+    - run: |
+        cd build
+        ninja test
+
+#
+#   Windows with OpenSSL is working but disabled as it takes 13 minutes (10 for openssl) to build with vcpkg
+#
+#   windows_openssl:
+#     runs-on: windows-latest
+#     steps:
+#     - uses: actions/checkout@v1
+#     - uses: seanmiddleditch/gha-setup-vsdevenv@master
+#     - run: |
+#         vcpkg install zlib:x64-windows
+#         vcpkg install openssl:x64-windows
+#     - run: |
+#         mkdir build
+#         cd build
+#         cmake -DCMAKE_TOOLCHAIN_FILE=c:/vcpkg/scripts/buildsystems/vcpkg.cmake -DCMAKE_CXX_COMPILER=cl.exe -DUSE_OPEN_SSL=1 -DUSE_TLS=1 -DUSE_WS=1 -DUSE_TEST=1 ..
+#     - run: cmake --build build
+# 
+#     # Running the unittest does not work, the binary cannot be found
+#     #- run: ../build/test/ixwebsocket_unittest.exe
+#     # working-directory: test

.github/workflows/unittest_windows_gcc.yml

@@ -0,0 +1,28 @@
+name: windows_gcc
+on:
+  push:
+    paths-ignore:
+    - 'docs/**'
+  pull_request:
+
+jobs:
+  windows:
+    runs-on: windows-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: seanmiddleditch/gha-setup-ninja@master
+    - uses: bsergean/setup-mingw@d79ce405bac9edef3a1726ef00554a56f0bafe66
+    - run: |
+        mkdir build
+        cd build
+        cmake -GNinja -DCMAKE_CXX_COMPILER=c++ -DCMAKE_C_COMPILER=cc -DUSE_WS=1 -DUSE_TEST=1 -DUSE_ZLIB=0 -DCMAKE_UNITY_BUILD=ON ..
+    - run: |
+        cd build
+        ninja
+    - run: |
+        cd build
+        ctest -V
+        # ninja test
+
+#- run: ../build/test/ixwebsocket_unittest.exe
+# working-directory: test

.gitignore

@@ -0,0 +1,12 @@
+build
+*.pyc
+venv
+ixsnake/ixsnake/.certs/
+site/
+ws/.certs/
+ws/.srl
+ixhttpd
+makefile
+a.out
+.idea/
+cmake-build-debug/

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "uSockets"]
-	path = uSockets
-	url = https://github.com/uNetworking/uSockets.git

.pre-commit-config.yaml

@@ -0,0 +1,12 @@
+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v2.5.0
+    hooks:
+    -   id: check-yaml
+    -   id: end-of-file-fixer
+    -   id: trailing-whitespace
+-   repo: https://github.com/pocc/pre-commit-hooks
+    rev: v1.1.1
+    hooks:
+    -    id: clang-format
+         args: [-i, -style=file]

CMake/FindDeflate.cmake

@@ -0,0 +1,19 @@
+# Find package structure taken from libcurl
+
+include(FindPackageHandleStandardArgs)
+
+find_path(DEFLATE_INCLUDE_DIRS libdeflate.h)
+find_library(DEFLATE_LIBRARY deflate)
+
+find_package_handle_standard_args(Deflate
+    FOUND_VAR
+      DEFLATE_FOUND
+    REQUIRED_VARS
+      DEFLATE_LIBRARY
+      DEFLATE_INCLUDE_DIRS
+    FAIL_MESSAGE
+      "Could NOT find deflate"
+)
+
+set(DEFLATE_INCLUDE_DIRS ${DEFLATE_INCLUDE_DIRS})
+set(DEFLATE_LIBRARIES ${DEFLATE_LIBRARY})

CMake/FindMbedTLS.cmake

@@ -0,0 +1,16 @@
+find_path(MBEDTLS_INCLUDE_DIRS mbedtls/ssl.h)
+
+# mbedtls-3.0 changed headers files, and we need to ifdef'out a few things
+find_path(MBEDTLS_VERSION_GREATER_THAN_3 mbedtls/build_info.h)
+
+find_library(MBEDTLS_LIBRARY mbedtls)
+find_library(MBEDX509_LIBRARY mbedx509)
+find_library(MBEDCRYPTO_LIBRARY mbedcrypto)
+
+set(MBEDTLS_LIBRARIES "${MBEDTLS_LIBRARY}" "${MBEDX509_LIBRARY}" "${MBEDCRYPTO_LIBRARY}")
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(MbedTLS DEFAULT_MSG
+    MBEDTLS_INCLUDE_DIRS MBEDTLS_LIBRARY MBEDX509_LIBRARY MBEDCRYPTO_LIBRARY)
+
+mark_as_advanced(MBEDTLS_INCLUDE_DIRS MBEDTLS_LIBRARY MBEDX509_LIBRARY MBEDCRYPTO_LIBRARY)

CMake/FindSpdLog.cmake

@@ -0,0 +1,19 @@
+# Find package structure taken from libcurl
+
+include(FindPackageHandleStandardArgs)
+
+find_path(SPDLOG_INCLUDE_DIRS spdlog/spdlog.h)
+find_library(JSONCPP_LIBRARY spdlog)
+
+find_package_handle_standard_args(SPDLOG
+    FOUND_VAR
+    SPDLOG_FOUND
+    REQUIRED_VARS
+      SPDLOG_LIBRARY
+      SPDLOG_INCLUDE_DIRS
+    FAIL_MESSAGE
+      "Could NOT find spdlog"
+)
+
+set(SPDLOG_INCLUDE_DIRS ${SPDLOG_INCLUDE_DIRS})
+set(SPDLOG_LIBRARIES ${SPDLOG_LIBRARY})

CMakeLists.txt

@@ -0,0 +1,325 @@
+#
+# Author: Benjamin Sergeant
+# Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+#
+
+cmake_minimum_required(VERSION 3.4.1...3.17.2)
+set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMake;${CMAKE_MODULE_PATH}")
+
+project(ixwebsocket LANGUAGES C CXX VERSION 11.4.6)
+
+set (CMAKE_CXX_STANDARD 11)
+set (CXX_STANDARD_REQUIRED ON)
+set (CMAKE_CXX_EXTENSIONS OFF)
+set (CMAKE_EXPORT_COMPILE_COMMANDS yes)
+
+option (BUILD_DEMO OFF)
+
+if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
+  set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+endif()
+
+if (UNIX)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic")
+endif()
+
+if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wshorten-64-to-32")
+endif()
+
+set( IXWEBSOCKET_SOURCES
+    ixwebsocket/IXBench.cpp
+    ixwebsocket/IXCancellationRequest.cpp
+    ixwebsocket/IXConnectionState.cpp
+    ixwebsocket/IXDNSLookup.cpp
+    ixwebsocket/IXExponentialBackoff.cpp
+    ixwebsocket/IXGetFreePort.cpp
+    ixwebsocket/IXGzipCodec.cpp
+    ixwebsocket/IXHttp.cpp
+    ixwebsocket/IXHttpClient.cpp
+    ixwebsocket/IXHttpServer.cpp
+    ixwebsocket/IXNetSystem.cpp
+    ixwebsocket/IXSelectInterrupt.cpp
+    ixwebsocket/IXSelectInterruptFactory.cpp
+    ixwebsocket/IXSelectInterruptPipe.cpp
+    ixwebsocket/IXSelectInterruptEvent.cpp
+    ixwebsocket/IXSetThreadName.cpp
+    ixwebsocket/IXSocket.cpp
+    ixwebsocket/IXSocketConnect.cpp
+    ixwebsocket/IXSocketFactory.cpp
+    ixwebsocket/IXSocketServer.cpp
+    ixwebsocket/IXSocketTLSOptions.cpp
+    ixwebsocket/IXStrCaseCompare.cpp
+    ixwebsocket/IXUdpSocket.cpp
+    ixwebsocket/IXUrlParser.cpp
+    ixwebsocket/IXUuid.cpp
+    ixwebsocket/IXUserAgent.cpp
+    ixwebsocket/IXWebSocket.cpp
+    ixwebsocket/IXWebSocketCloseConstants.cpp
+    ixwebsocket/IXWebSocketHandshake.cpp
+    ixwebsocket/IXWebSocketHttpHeaders.cpp
+    ixwebsocket/IXWebSocketPerMessageDeflate.cpp
+    ixwebsocket/IXWebSocketPerMessageDeflateCodec.cpp
+    ixwebsocket/IXWebSocketPerMessageDeflateOptions.cpp
+    ixwebsocket/IXWebSocketProxyServer.cpp
+    ixwebsocket/IXWebSocketServer.cpp
+    ixwebsocket/IXWebSocketTransport.cpp
+)
+
+set( IXWEBSOCKET_HEADERS
+    ixwebsocket/IXBase64.h
+    ixwebsocket/IXBench.h
+    ixwebsocket/IXCancellationRequest.h
+    ixwebsocket/IXConnectionState.h
+    ixwebsocket/IXDNSLookup.h
+    ixwebsocket/IXExponentialBackoff.h
+    ixwebsocket/IXGetFreePort.h
+    ixwebsocket/IXGzipCodec.h
+    ixwebsocket/IXHttp.h
+    ixwebsocket/IXHttpClient.h
+    ixwebsocket/IXHttpServer.h
+    ixwebsocket/IXNetSystem.h
+    ixwebsocket/IXProgressCallback.h
+    ixwebsocket/IXSelectInterrupt.h
+    ixwebsocket/IXSelectInterruptFactory.h
+    ixwebsocket/IXSelectInterruptPipe.h
+    ixwebsocket/IXSelectInterruptEvent.h
+    ixwebsocket/IXSetThreadName.h
+    ixwebsocket/IXSocket.h
+    ixwebsocket/IXSocketConnect.h
+    ixwebsocket/IXSocketFactory.h
+    ixwebsocket/IXSocketServer.h
+    ixwebsocket/IXSocketTLSOptions.h
+    ixwebsocket/IXStrCaseCompare.h
+    ixwebsocket/IXUdpSocket.h
+    ixwebsocket/IXUniquePtr.h
+    ixwebsocket/IXUrlParser.h
+    ixwebsocket/IXUuid.h
+    ixwebsocket/IXUtf8Validator.h
+    ixwebsocket/IXUserAgent.h
+    ixwebsocket/IXWebSocket.h
+    ixwebsocket/IXWebSocketCloseConstants.h
+    ixwebsocket/IXWebSocketCloseInfo.h
+    ixwebsocket/IXWebSocketErrorInfo.h
+    ixwebsocket/IXWebSocketHandshake.h
+    ixwebsocket/IXWebSocketHandshakeKeyGen.h
+    ixwebsocket/IXWebSocketHttpHeaders.h
+    ixwebsocket/IXWebSocketInitResult.h
+    ixwebsocket/IXWebSocketMessage.h
+    ixwebsocket/IXWebSocketMessageType.h
+    ixwebsocket/IXWebSocketOpenInfo.h
+    ixwebsocket/IXWebSocketPerMessageDeflate.h
+    ixwebsocket/IXWebSocketPerMessageDeflateCodec.h
+    ixwebsocket/IXWebSocketPerMessageDeflateOptions.h
+    ixwebsocket/IXWebSocketProxyServer.h
+    ixwebsocket/IXWebSocketSendData.h
+    ixwebsocket/IXWebSocketSendInfo.h
+    ixwebsocket/IXWebSocketServer.h
+    ixwebsocket/IXWebSocketTransport.h
+    ixwebsocket/IXWebSocketVersion.h
+)
+
+option(BUILD_SHARED_LIBS "Build shared libraries (.dll/.so) instead of static ones (.lib/.a)" OFF)
+option(USE_TLS "Enable TLS support" FALSE)
+
+if (USE_TLS)
+    # default to securetranport on Apple if nothing is configured
+    if (APPLE)
+      if (NOT USE_MBED_TLS AND NOT USE_OPEN_SSL) # unless we want something else
+        set(USE_SECURE_TRANSPORT ON)
+      endif()
+    # default to mbedtls on windows if nothing is configured
+    elseif (WIN32)
+      if (NOT USE_OPEN_SSL) # unless we want something else
+        set(USE_MBED_TLS ON)
+      endif()
+    else() # default to OpenSSL on all other platforms
+      if (NOT USE_MBED_TLS) # Unless mbedtls is requested
+        set(USE_OPEN_SSL ON)
+        set(requires "openssl")
+      endif()
+    endif()
+
+    if (USE_MBED_TLS)
+        list( APPEND IXWEBSOCKET_HEADERS ixwebsocket/IXSocketMbedTLS.h)
+        list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/IXSocketMbedTLS.cpp)
+    elseif (USE_SECURE_TRANSPORT)
+        list( APPEND IXWEBSOCKET_HEADERS ixwebsocket/IXSocketAppleSSL.h)
+        list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/IXSocketAppleSSL.cpp)
+    elseif (USE_OPEN_SSL)
+        list( APPEND IXWEBSOCKET_HEADERS ixwebsocket/IXSocketOpenSSL.h)
+        list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/IXSocketOpenSSL.cpp)
+    else()
+        message(FATAL_ERROR "TLS Configuration error: unknown backend")
+    endif()
+endif()
+
+if(BUILD_SHARED_LIBS)
+    # Building shared library
+    
+    if(MSVC)
+        # Workaround for some projects
+        set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
+    endif()
+
+    add_library( ixwebsocket SHARED
+        ${IXWEBSOCKET_SOURCES}
+        ${IXWEBSOCKET_HEADERS}
+    )
+
+    # Set library version
+    set_target_properties(ixwebsocket PROPERTIES VERSION ${PROJECT_VERSION})
+else()
+    # Static library
+    add_library( ixwebsocket
+        ${IXWEBSOCKET_SOURCES}
+        ${IXWEBSOCKET_HEADERS}
+    )
+endif()
+
+if (USE_TLS)
+    target_compile_definitions(ixwebsocket PUBLIC IXWEBSOCKET_USE_TLS)
+    if (USE_MBED_TLS)
+        target_compile_definitions(ixwebsocket PUBLIC IXWEBSOCKET_USE_MBED_TLS)
+    elseif (USE_OPEN_SSL)
+        target_compile_definitions(ixwebsocket PUBLIC IXWEBSOCKET_USE_OPEN_SSL)
+    elseif (USE_SECURE_TRANSPORT)
+        target_compile_definitions(ixwebsocket PUBLIC IXWEBSOCKET_USE_SECURE_TRANSPORT)
+    else()
+        message(FATAL_ERROR "TLS Configuration error: unknown backend")
+    endif()
+endif()
+
+if (USE_TLS)
+  if (USE_OPEN_SSL)
+    message(STATUS "TLS configured to use openssl")
+
+    # Help finding Homebrew's OpenSSL on macOS
+    if (APPLE)
+      set(CMAKE_LIBRARY_PATH ${CMAKE_LIBRARY_PATH} /usr/local/opt/openssl/lib)
+      set(CMAKE_INCLUDE_PATH ${CMAKE_INCLUDE_PATH} /usr/local/opt/openssl/include)
+
+      # This is for MacPort OpenSSL 1.0
+      # set(CMAKE_LIBRARY_PATH ${CMAKE_LIBRARY_PATH} /opt/local/lib/openssl-1.0)
+      # set(CMAKE_INCLUDE_PATH ${CMAKE_INCLUDE_PATH} /opt/local/include/openssl-1.0)
+    endif()
+
+    # This OPENSSL_FOUND check is to help find a cmake manually configured OpenSSL
+    if (NOT OPENSSL_FOUND)
+      find_package(OpenSSL REQUIRED)
+    endif()
+    message(STATUS "OpenSSL: " ${OPENSSL_VERSION})
+
+    add_definitions(${OPENSSL_DEFINITIONS})
+    target_include_directories(ixwebsocket PUBLIC $<BUILD_INTERFACE:${OPENSSL_INCLUDE_DIR}>)
+    target_link_libraries(ixwebsocket PRIVATE ${OPENSSL_LIBRARIES})
+  elseif (USE_MBED_TLS)
+    message(STATUS "TLS configured to use mbedtls")
+
+    # This MBEDTLS_FOUND check is to help find a cmake manually configured MbedTLS
+    if (NOT MBEDTLS_FOUND)
+      find_package(MbedTLS REQUIRED)
+      
+      if (MBEDTLS_VERSION_GREATER_THAN_3)
+        target_compile_definitions(ixwebsocket PRIVATE IXWEBSOCKET_USE_MBED_TLS_MIN_VERSION_3)
+      endif()
+      
+    endif()
+    target_include_directories(ixwebsocket PUBLIC $<BUILD_INTERFACE:${MBEDTLS_INCLUDE_DIRS}>)
+    target_link_libraries(ixwebsocket PRIVATE ${MBEDTLS_LIBRARIES})
+  elseif (USE_SECURE_TRANSPORT)
+    message(STATUS "TLS configured to use secure transport")
+    target_link_libraries(ixwebsocket PRIVATE "-framework Foundation" "-framework Security")
+  endif()
+endif()
+
+option(USE_ZLIB "Enable zlib support" TRUE)
+
+if (USE_ZLIB)
+  find_package(ZLIB REQUIRED)
+  target_link_libraries(ixwebsocket PRIVATE ZLIB::ZLIB)
+
+  target_compile_definitions(ixwebsocket PUBLIC IXWEBSOCKET_USE_ZLIB)
+endif()
+
+if (WIN32)
+  target_link_libraries(ixwebsocket PRIVATE wsock32 ws2_32 shlwapi)
+  target_compile_definitions(ixwebsocket PRIVATE _CRT_SECURE_NO_WARNINGS)
+
+  if (USE_TLS)
+    target_link_libraries(ixwebsocket PRIVATE Crypt32)
+  endif()
+endif()
+
+if (UNIX AND NOT APPLE)
+  set(THREADS_PREFER_PTHREAD_FLAG TRUE)
+  find_package(Threads)
+  target_link_libraries(ixwebsocket PRIVATE Threads::Threads)
+endif()
+
+
+set( IXWEBSOCKET_INCLUDE_DIRS
+    ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+if (CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
+    # Build with Multiple Processes
+    target_compile_options(ixwebsocket PRIVATE /MP)
+endif()
+
+include(GNUInstallDirs)
+
+target_include_directories(ixwebsocket PUBLIC
+  $<BUILD_INTERFACE:${IXWEBSOCKET_INCLUDE_DIRS}/>
+  $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/ixwebsocket>
+)
+
+set_target_properties(ixwebsocket PROPERTIES PUBLIC_HEADER "${IXWEBSOCKET_HEADERS}")
+
+add_library(ixwebsocket::ixwebsocket ALIAS ixwebsocket)
+
+option(IXWEBSOCKET_INSTALL "Install IXWebSocket" TRUE)
+
+if (IXWEBSOCKET_INSTALL)
+  install(TARGETS ixwebsocket
+          EXPORT ixwebsocket
+          ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+          PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/ixwebsocket/
+  )
+
+  configure_file("${CMAKE_CURRENT_LIST_DIR}/ixwebsocket-config.cmake.in" "${CMAKE_CURRENT_BINARY_DIR}/ixwebsocket-config.cmake" @ONLY)
+  install(FILES "${CMAKE_CURRENT_BINARY_DIR}/ixwebsocket-config.cmake" DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/ixwebsocket")
+  
+  set(prefix ${CMAKE_INSTALL_PREFIX})
+  configure_file("${CMAKE_CURRENT_LIST_DIR}/ixwebsocket.pc.in" "${CMAKE_CURRENT_BINARY_DIR}/ixwebsocket.pc" @ONLY)
+  install(FILES "${CMAKE_CURRENT_BINARY_DIR}/ixwebsocket.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
+
+  install(EXPORT ixwebsocket
+          FILE ixwebsocket-targets.cmake
+          NAMESPACE ixwebsocket::
+          DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/ixwebsocket
+  )
+endif()
+
+if (USE_WS OR USE_TEST)
+  include(FetchContent)
+  FetchContent_Declare(spdlog
+      GIT_REPOSITORY "https://github.com/gabime/spdlog"
+      GIT_TAG "v1.8.0"
+      GIT_SHALLOW 1) 
+
+  FetchContent_MakeAvailable(spdlog)
+
+  if (USE_WS)
+    add_subdirectory(ws)
+  endif()
+  if (USE_TEST)
+    enable_testing()
+    add_subdirectory(test)
+  endif()
+endif()
+
+if (BUILD_DEMO) 
+  add_executable(demo main.cpp)
+  target_link_libraries(demo ixwebsocket) 
+endif()

Dockerfile

@@ -0,0 +1 @@
+docker/Dockerfile.alpine

LICENSE

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LICENSE.txt

@@ -0,0 +1,29 @@
+Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the
+   distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived
+   from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Makefile

@@ -1,40 +0,0 @@
-EXAMPLE_FILES := HelloWorld EchoServer BroadcastingEchoServer
-THREADED_EXAMPLE_FILES := HelloWorldThreaded EchoServerThreaded
-override CXXFLAGS += -lpthread -Wconversion -std=c++17 -Isrc -IuSockets/src
-override LDFLAGS += uSockets/*.o -lz
-
-# WITH_OPENSSL=1 enables OpenSSL 1.1+ support
-ifeq ($(WITH_OPENSSL),1)
-	# With problems on macOS, make sure to pass needed LDFLAGS required to find these
-	override LDFLAGS += -lssl -lcrypto
-else
-	# WITH_WOLFSSL=1 enables WolfSSL 4.2.0 support (mutually exclusive with OpenSSL)
-	ifeq ($(WITH_WOLFSSL),1)
-		override LDFLAGS += -L/usr/local/lib -lwolfssl
-	endif
-endif
-
-# WITH_LIBUV=1 builds with libuv as event-loop
-ifeq ($(WITH_LIBUV),1)
-	override LDFLAGS += -luv
-endif
-
-# WITH_ASAN builds with sanitizers
-ifeq ($(WITH_ASAN),1)
-	override CXXFLAGS += -fsanitize=address
-	override LDFLAGS += -lasan
-endif
-
-.PHONY: examples
-examples:
-	cd uSockets && make
-	$(foreach FILE,$(EXAMPLE_FILES),$(CXX) -flto -O3 $(CXXFLAGS) examples/$(FILE).cpp -o $(FILE) $(LDFLAGS);)
-	$(foreach FILE,$(THREADED_EXAMPLE_FILES),$(CXX) -pthread -flto -O3 $(CXXFLAGS) examples/$(FILE).cpp -o $(FILE) $(LDFLAGS);)
-
-all:
-	make examples
-	make -C fuzzing
-	make -C benchmarks
-clean:
-	rm -rf $(EXAMPLE_FILES) $(THREADED_EXAMPLE_FILES)
-	rm -rf fuzzing/*.o benchmarks/*.o

README.md

@@ -1,65 +1,152 @@
-<div align="center">
+## Hello world
-<img src="misc/logo.svg" height="180" />
 
-*µWebSockets™ (it's "[micro](https://en.wikipedia.org/wiki/Micro-)") is simple, secure*<sup>[[1]](fuzzing)</sup> *& standards compliant*<sup>[[2]](https://unetworking.github.io/uWebSockets.js/report.pdf)</sup> *web I/O for the most demanding*<sup>[[3]](benchmarks)</sup> *of applications.*
+(note from the main developer, sadly I don't have too much time to devote to this library anymore, maybe it's time to pass the maintenance to someone else more motivated ?)
 
-• [Read more](misc/READMORE.md) • [Read about uSockets](https://github.com/uNetworking/uSockets) • [See uWebSockets.js](https://github.com/uNetworking/uWebSockets.js)
+IXWebSocket is a C++ library for WebSocket client and server development. It has minimal dependencies (no boost), is very simple to use and support everything you'll likely need for websocket dev (SSL, deflate compression, compiles on most platforms, etc...). HTTP client and server code is also available, but it hasn't received as much testing.
 
-*© 2016-2019, >39,632,272 downloads*
+It is been used on big mobile video game titles sending and receiving tons of messages since 2017 (iOS and Android). It was tested on macOS, iOS, Linux, Android, Windows and FreeBSD. Two important design goals are simplicity and correctness.
 
-</div>
+```cpp
+/*
+ *  main.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2020 Machine Zone, Inc. All rights reserved.
+ *
+ *  Super simple standalone example. See ws folder, unittest and doc/usage.md for more.
+ *
+ *  On macOS
+ *  $ mkdir -p build ; (cd build ; cmake -DUSE_TLS=1 .. ; make -j ; make install)
+ *  $ clang++ --std=c++11 --stdlib=libc++ main.cpp -lixwebsocket -lz -framework Security -framework Foundation
+ *  $ ./a.out
+ *
+ *  Or use cmake -DBUILD_DEMO=ON option for other platforms
+ */
 
-#### Express yourself briefly.
+#include <ixwebsocket/IXNetSystem.h>
-```c++
+#include <ixwebsocket/IXWebSocket.h>
-uWS::SSLApp({
+#include <ixwebsocket/IXUserAgent.h>
+#include <iostream>
 
-    /* There are tons of SSL options */
+int main()
-    .cert_file_name = "cert.pem",
+{
-    .key_file_name = "key.pem"
+    // Required on Windows
-    
+    ix::initNetSystem();
-}).get("/hello", [](auto *res, auto *req) {
 
-    /* You can efficiently stream huge files too */
+    // Our websocket object
-    res->writeHeader("Content-Type", "text/html; charset=utf-8")->end("Hello HTTP!");
+    ix::WebSocket webSocket;
-    
-}).ws<UserData>("/*", {
 
-    /* Just a few of the available handlers */
+    // Connect to a server with encryption
-    .open = [](auto *ws, auto *req) {
+    // See https://machinezone.github.io/IXWebSocket/usage/#tls-support-and-configuration
-        ws->subscribe("buzzword weekly");
+    //     https://github.com/machinezone/IXWebSocket/issues/386#issuecomment-1105235227 (self signed certificates)
-    },
+    std::string url("wss://echo.websocket.org");
-    .message = [](auto *ws, std::string_view message, uWS::OpCode opCode) {
+    webSocket.setUrl(url);
-        ws->send(message, opCode);
+
+    std::cout << "Connecting to " << url << "..." << std::endl;
+
+    // Setup a callback to be fired (in a background thread, watch out for race conditions !)
+    // when a message or an event (open, close, error) is received
+    webSocket.setOnMessageCallback([](const ix::WebSocketMessagePtr& msg)
+        {
+            if (msg->type == ix::WebSocketMessageType::Message)
+            {
+                std::cout << "received message: " << msg->str << std::endl;
+                std::cout << "> " << std::flush;
+            }
+            else if (msg->type == ix::WebSocketMessageType::Open)
+            {
+                std::cout << "Connection established" << std::endl;
+                std::cout << "> " << std::flush;
+            }
+            else if (msg->type == ix::WebSocketMessageType::Error)
+            {
+                // Maybe SSL is not configured properly
+                std::cout << "Connection error: " << msg->errorInfo.reason << std::endl;
+                std::cout << "> " << std::flush;
+            }
+        }
+    );
+
+    // Now that our callback is setup, we can start our background thread and receive messages
+    webSocket.start();
+
+    // Send a message to the server (default to TEXT mode)
+    webSocket.send("hello world");
+
+    // Display a prompt
+    std::cout << "> " << std::flush;
+
+    std::string text;
+    // Read text from the console and send messages in text mode.
+    // Exit with Ctrl-D on Unix or Ctrl-Z on Windows.
+    while (std::getline(std::cin, text))
+    {
+        webSocket.send(text);
+        std::cout << "> " << std::flush;
     }
-    
-}).listen(9001, [](auto *token) {
 
-    if (token) {
+    return 0;
-        std::cout << "Listening on port " << 9001 << std::endl;
+}
-    }
-    
-}).run();
 ```
-Don't miss the [user manual](https://github.com/uNetworking/uWebSockets/blob/master/misc/READMORE.md#user-manual), the [C++ examples](https://github.com/uNetworking/uWebSockets/tree/master/examples) or the [JavaScript examples](https://github.com/uNetworking/uWebSockets.js/tree/master/examples). JavaScript examples are very applicable to C++ developers, so go through them as well.
 
-#### Pay what you want.
+Interested? Go read the [docs](https://machinezone.github.io/IXWebSocket/)! If things don't work as expected, please create an issue on GitHub, or even better a pull request if you know how to fix your problem.
-A free & open source ([permissive](LICENSE)) project since 2016. Kindly sponsored by [BitMEX](https://bitmex.com), [Bitfinex](https://bitfinex.com) & [Coinbase](https://www.coinbase.com/) in 2018 and/or 2019. Individual donations are always accepted via [PayPal](https://paypal.me/uwebsockets).
 
-<div align="center"><img src="misc/2018.png"/></div>
+IXWebSocket is actively being developed, check out the [changelog](https://machinezone.github.io/IXWebSocket/CHANGELOG/) to know what's cooking. If you are looking for a real time messaging service (the chat-like 'server' your websocket code will talk to) with many features such as history, backed by Redis, look at [cobra](https://github.com/machinezone/cobra).
 
-*Code is provided as-is, do not expect or demand **free** consulting services, personal tutoring, advice or debugging.*
+IXWebSocket client code is autobahn compliant beginning with the 6.0.0 version. See the current [test results](https://bsergean.github.io/autobahn/reports/clients/index.html). Some tests are still failing in the server code.
 
-#### Deploy like a boss.
+Starting with the 11.0.8 release, IXWebSocket should be fully C++11 compatible.
-Commercial support is available via a per-hourly consulting plan or as otherwise negotiated. If you're stuck, worried about design or just in need of help don't hesitate throwing [me, the author](https://github.com/alexhultman) a mail and we'll figure out what's best for both parties. I want your business to have a proper understanding of the problem before rushing in to one of the many pitfalls.
 
-#### Excel across the board.
+## Users
-All that glitters is not gold. Especially so in a market driven by flashy logos, hype and pointless badges.
 
-Http | WebSockets
+If your company or project is using this library, feel free to open an issue or PR to amend this list.
---- | ---
-![](misc/bigshot_lineup.png) | ![](misc/websocket_lineup.png)
 
-#### Keep it legal.
+- [Machine Zone](https://www.mz.com)
-Intellectual property, all rights reserved.
+- [Tokio](https://github.com/liz3/tokio), a discord library focused on audio playback with node bindings.
+- [libDiscordBot](https://github.com/tostc/libDiscordBot/tree/master), an easy to use Discord-bot framework.
+- [gwebsocket](https://github.com/norrbotten/gwebsocket), a websocket (lua) module for Garry's Mod
+- [DisCPP](https://github.com/DisCPP/DisCPP), a simple but feature rich Discord API wrapper (archived as of Oct 8, 2021)
+- [discord.cpp](https://github.com/luccanunes/discord.cpp), a discord library for making bots
+- [Teleport](http://teleportconnect.com/), Teleport is your own personal remote robot avatar
+- [Abaddon](https://github.com/uowuo/abaddon), An alternative Discord client made with C++/gtkmm 
+- [NovaCoin](https://github.com/novacoin-project/novacoin), a hybrid scrypt PoW + PoS based cryptocurrency.
+- [Candy](https://github.com/lanthora/candy), A WebSocket and TUN based VPN for Linux 
+- [ITGmania](https://github.com/itgmania/itgmania), a cross platform Dance Dance Revolution-like emulator.
+
+## Alternative libraries
+
+There are plenty of great websocket libraries out there, which might work for you. Here are a couple of serious ones.
+
+* [websocketpp](https://github.com/zaphoyd/websocketpp) - C++
+* [beast](https://github.com/boostorg/beast) - C++
+* [µWebSockets](https://github.com/uNetworking/uWebSockets) - C++
+* [libwebsockets](https://libwebsockets.org/) - C
+* [wslay](https://github.com/tatsuhiro-t/wslay) - C
+
+[uvweb](https://github.com/bsergean/uvweb) is a library written by the IXWebSocket author which is built on top of [uvw](https://github.com/skypjack/uvw), which is a C++ wrapper for [libuv](https://libuv.org/). It has more dependencies and does not support SSL at this point, but it can be used to open multiple connections within a single OS thread thanks to libuv.
+
+To check the performance of a websocket library, you can look at the [autoroute](https://github.com/bsergean/autoroute) project.
+
+## Continuous Integration
+
+| OS                | TLS               | Sanitizer         | Status            |
+|-------------------|-------------------|-------------------|-------------------|
+| Linux             | OpenSSL           | None              | [![Build2][1]][0] |
+| macOS             | Secure Transport  | Thread Sanitizer  | [![Build2][2]][0] |
+| macOS             | OpenSSL           | Thread Sanitizer  | [![Build2][3]][0] |
+| macOS             | MbedTLS           | Thread Sanitizer  | [![Build2][4]][0] |
+| Windows           | Disabled          | None              | [![Build2][5]][0] |
+| UWP               | Disabled          | None              | [![Build2][6]][0] |
+| Linux             | OpenSSL           | Address Sanitizer | [![Build2][7]][0] |
+
+* Some tests are disabled on Windows/UWP because of a pathing problem
+* TLS and ZLIB are disabled on Windows/UWP because enabling make the CI run takes a lot of time, for setting up vcpkg.
+
+[0]: https://github.com/machinezone/IXWebSocket
+[1]: https://github.com/machinezone/IXWebSocket/workflows/linux/badge.svg
+[2]: https://github.com/machinezone/IXWebSocket/workflows/mac_tsan_sectransport/badge.svg
+[3]: https://github.com/machinezone/IXWebSocket/workflows/mac_tsan_openssl/badge.svg
+[4]: https://github.com/machinezone/IXWebSocket/workflows/mac_tsan_mbedtls/badge.svg
+[5]: https://github.com/machinezone/IXWebSocket/workflows/windows/badge.svg
+[6]: https://github.com/machinezone/IXWebSocket/workflows/uwp/badge.svg
+[7]: https://github.com/machinezone/IXWebSocket/workflows/linux_asan/badge.svg
 
-*You are forbidden to use logos, product names, texts, names or otherwise perceived brand identity, of copyright holder, in any way that might state or imply that the copyright holder endorses your distribution or in any way that might state or imply that you created the original software. Modified distributions must carry, from the original distribution, significantly different names and must not be confused with the original distribution.*

SECURITY.md

@@ -0,0 +1,11 @@
+# Security Policy
+
+## Supported Versions
+
+| Version | Supported          |
+| ------- | ------------------ |
+| 7.x.x   | :white_check_mark: |
+
+## Reporting a Vulnerability
+
+Users should send an email to bsergean@gmail.com to report a vulnerability.

benchmarks/Makefile

@@ -1,4 +0,0 @@
-default:
-	clang -flto -O3 -DLIBUS_USE_OPENSSL -I../uSockets/src ../uSockets/src/*.c ../uSockets/src/eventing/*.c ../uSockets/src/crypto/*.c broadcast_test.c -o broadcast_test -lssl -lcrypto
-	clang -flto -O3 -DLIBUS_USE_OPENSSL -I../uSockets/src ../uSockets/src/*.c ../uSockets/src/eventing/*.c ../uSockets/src/crypto/*.c load_test.c -o load_test -lssl -lcrypto
-	clang -flto -O3 -DLIBUS_USE_OPENSSL -I../uSockets/src ../uSockets/src/*.c ../uSockets/src/eventing/*.c ../uSockets/src/crypto/*.c scale_test.c -o scale_test -lssl -lcrypto

benchmarks/README.md

@@ -1,17 +0,0 @@
-# Benchmark-driven development
-
-Just like testing code for correctness and stability, testing for performance is just as important if performance is a goal. You cannot really argue or reason about performance without having tests for it.
-
-* Do not trust anyone who claims performance of any kind unless they provide benchmarks. Do not listen to people who talk about performance without having actual scientific data to back their claims up.
-* Never accept absolute numbers without a direct comparison with an alternative solution. Many projects can give you a number, X, which can be "50 billion messages per second". How much is this? What kind of worth does this number have? Impossible to know without a comparison. Absolute numbers mean nothing, relative comparisons are what you should look for.
-* Make sure to benchmark the correct thing. This is an extremely common mistake, done by many of the most well-known developers out there. If you measure for CPU-time efficiency (which you do) then normalizing for spent CPU-time is the difference between a completely invalid, botched and bogus test and something that might be valid.
-
-Here are the current relative comparisons:
-
-Http | WebSockets
---- | ---
-![](../misc/bigshot_lineup.png) | ![](../misc/websocket_lineup.png)
-
-Over the period of a few years I have never come across any web server which can score as high as µWebSockets do. This is not to say that µWebSockets is fastest, as "fastest" is a silly superlative nobody should *ever* use.
-
-Never trust anyone using superlatives to describe their work; they are more often wrong than right.

benchmarks/broadcast_test.c

@@ -1,196 +0,0 @@
-/* This benchmark establishes _connections_ number of WebSocket
-   clients, then iteratively performs the following:
-
-   1. Send one message for every client.
-   2. Wait for the quadratic (_connections_^2) amount of responses from the server.
-   3. Once received all expected bytes, repeat by going to step 1.
-
-   Every 4 seconds we print the current average "iterations per second".
-   */
-
-#include <libusockets.h>
-int SSL;
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-unsigned char web_socket_request[26] = {130, 128 | 20, 1, 2, 3, 4};
-
-char request[] = "GET / HTTP/1.1\r\n"
-                 "Upgrade: websocket\r\n"
-                 "Connection: Upgrade\r\n"
-                 "Sec-WebSocket-Key: x3JJHMbDL1EzLkh9GBhXDw==\r\n"
-                 "Host: server.example.com\r\n"
-                 "Sec-WebSocket-Version: 13\r\n\r\n";
-char *host;
-int port;
-int connections;
-
-int satisfied_sockets;
-int iterations;
-
-struct http_socket {
-    /* How far we have streamed our websocket request */
-    int offset;
-
-    /* How far we have streamed our upgrade request */
-    int upgrade_offset;
-
-    /* Are we upgraded? */
-    int is_upgraded;
-
-    /* Bytes received */
-    int bytes_received;
-};
-
-/* We track upgraded websockets */
-void **web_sockets;
-int num_web_sockets;
-
-/* We don't need any of these */
-void noop(struct us_loop_t *loop) {
-
-}
-
-void start_iteration() {
-    for (int i = 0; i < num_web_sockets; i++) {
-        struct us_socket_t *s = (struct us_socket_t *) web_sockets[i];
-        struct http_socket *http_socket = (struct http_socket *) us_socket_ext(SSL, s);
-
-        http_socket->offset = us_socket_write(SSL, s, (char *) web_socket_request, sizeof(web_socket_request), 0);
-    }
-}
-
-void next_connection(struct us_socket_t *s) {
-    /* Add this connection to our array */
-    web_sockets[num_web_sockets++] = s;
-
-    /* We could wait with this until properly upgraded */
-    if (--connections) {
-        us_socket_context_connect(SSL, us_socket_context(SSL, s), host, port, 0, sizeof(struct http_socket));
-    } else {
-        printf("Running benchmark now...\n");
-        start_iteration();
-
-        us_socket_timeout(SSL, s, LIBUS_TIMEOUT_GRANULARITY);
-    }
-}
-
-struct us_socket_t *on_http_socket_writable(struct us_socket_t *s) {
-    struct http_socket *http_socket = (struct http_socket *) us_socket_ext(SSL, s);
-
-    /* Are we still not upgraded yet? */
-    if (http_socket->upgrade_offset < sizeof(request) - 1) {
-        http_socket->upgrade_offset += us_socket_write(SSL, s, request + http_socket->upgrade_offset, sizeof(request) - 1 - http_socket->upgrade_offset, 0);
-    } else {
-        /* Stream whatever is remaining of the request */
-        http_socket->offset += us_socket_write(SSL, s, (char *) web_socket_request + http_socket->offset, sizeof(web_socket_request) - http_socket->offset, 0);
-    }
-
-    return s;
-}
-
-struct us_socket_t *on_http_socket_close(struct us_socket_t *s) {
-
-    printf("Client was disconnected, exiting!\n");
-    exit(-1);
-
-    return s;
-}
-
-struct us_socket_t *on_http_socket_end(struct us_socket_t *s) {
-    return us_socket_close(SSL, s);
-}
-
-struct us_socket_t *on_http_socket_data(struct us_socket_t *s, char *data, int length) {
-    /* Get socket extension and the socket's context's extension */
-    struct http_socket *http_socket = (struct http_socket *) us_socket_ext(SSL, s);
-
-    /* Are we already upgraded? */
-    if (http_socket->is_upgraded) {
-        http_socket->bytes_received += length;
-
-        if (http_socket->bytes_received == (sizeof(web_socket_request) - 4) * num_web_sockets) {
-            satisfied_sockets++;
-            http_socket->bytes_received = 0;
-
-            if (satisfied_sockets == num_web_sockets) {
-                iterations++;
-                satisfied_sockets = 0;
-
-                start_iteration();
-            }
-        }
-    } else {
-        /* We assume the server is not sending anything immediately following upgrade and that we get rnrn in one chunk */
-        if (length >= 4 && data[length - 1] == '\n' && data[length - 2] == '\r' && data[length - 3] == '\n' && data[length - 4] == '\r') {
-            http_socket->is_upgraded = 1;
-            next_connection(s);
-        }
-    }
-
-    return s;
-}
-
-struct us_socket_t *on_http_socket_open(struct us_socket_t *s, int is_client, char *ip, int ip_length) {
-    struct http_socket *http_socket = (struct http_socket *) us_socket_ext(SSL, s);
-
-    /* Reset offsets */
-    http_socket->offset = 0;
-    http_socket->is_upgraded = 0;
-    http_socket->bytes_received = 0;
-
-    /* Send an upgrade request */
-    http_socket->upgrade_offset = us_socket_write(SSL, s, request, sizeof(request) - 1, 0);
-
-    return s;
-}
-
-struct us_socket_t *on_http_socket_timeout(struct us_socket_t *s) {
-    /* Print current statistics */
-    printf("Iterations/second (%d clients): %f\n", num_web_sockets, ((float)iterations) / LIBUS_TIMEOUT_GRANULARITY);
-
-    iterations = 0;
-    us_socket_timeout(SSL, s, LIBUS_TIMEOUT_GRANULARITY);
-
-    return s;
-}
-
-int main(int argc, char **argv) {
-
-    /* Parse host and port */
-    if (argc != 5) {
-        printf("Usage: connections host port ssl\n");
-        return 0;
-    }
-
-    port = atoi(argv[3]);
-    host = malloc(strlen(argv[2]) + 1);
-    memcpy(host, argv[2], strlen(argv[2]) + 1);
-    connections = atoi(argv[1]);
-    SSL = atoi(argv[4]);
-
-    /* Allocate room for every socket */
-    web_sockets = (void **) malloc(sizeof(void *) * connections);
-
-    /* Create the event loop */
-    struct us_loop_t *loop = us_create_loop(0, noop, noop, noop, 0);
-
-    /* Create a socket context for HTTP */
-    struct us_socket_context_options_t options = {};
-    struct us_socket_context_t *http_context = us_create_socket_context(SSL, loop, 0, options);
-
-    /* Set up event handlers */
-    us_socket_context_on_open(SSL, http_context, on_http_socket_open);
-    us_socket_context_on_data(SSL, http_context, on_http_socket_data);
-    us_socket_context_on_writable(SSL, http_context, on_http_socket_writable);
-    us_socket_context_on_close(SSL, http_context, on_http_socket_close);
-    us_socket_context_on_timeout(SSL, http_context, on_http_socket_timeout);
-    us_socket_context_on_end(SSL, http_context, on_http_socket_end);
-
-    /* Start making HTTP connections */
-    us_socket_context_connect(SSL, http_context, host, port, 0, sizeof(struct http_socket));
-
-    us_loop_run(loop);
-}

benchmarks/load_test.c

@@ -1,161 +0,0 @@
-/* This is a simple yet efficient WebSocket server benchmark much like WRK */
-
-#include <libusockets.h>
-int SSL;
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-// request eller upgradeRequest samt webSocketFrame
-
-unsigned char web_socket_request[26] = {130, 128 | 20, 1, 2, 3, 4};
-
-char request[] = "GET / HTTP/1.1\r\n"
-                 "Upgrade: websocket\r\n"
-                 "Connection: Upgrade\r\n"
-                 "Sec-WebSocket-Key: x3JJHMbDL1EzLkh9GBhXDw==\r\n"
-                 "Host: server.example.com\r\n"
-                 "Sec-WebSocket-Version: 13\r\n\r\n";
-char *host;
-int port;
-int connections;
-
-int responses;
-
-struct http_socket {
-    /* How far we have streamed our websocket request */
-    int offset;
-
-    /* How far we have streamed our upgrade request */
-    int upgrade_offset;
-};
-
-/* We don't need any of these */
-void on_wakeup(struct us_loop_t *loop) {
-
-}
-
-void on_pre(struct us_loop_t *loop) {
-
-}
-
-/* This is not HTTP POST, it is merely an event emitted post loop iteration */
-void on_post(struct us_loop_t *loop) {
-
-}
-
-void next_connection(struct us_socket_t *s) {
-    /* We could wait with this until properly upgraded */
-    if (--connections) {
-        us_socket_context_connect(SSL, us_socket_context(SSL, s), host, port, 0, sizeof(struct http_socket));
-    } else {
-        printf("Running benchmark now...\n");
-
-        us_socket_timeout(SSL, s, LIBUS_TIMEOUT_GRANULARITY);
-    }
-}
-
-struct us_socket_t *on_http_socket_writable(struct us_socket_t *s) {
-    struct http_socket *http_socket = (struct http_socket *) us_socket_ext(SSL, s);
-
-    /* Are we still not upgraded yet? */
-    if (http_socket->upgrade_offset < sizeof(request) - 1) {
-        http_socket->upgrade_offset += us_socket_write(SSL, s, request + http_socket->upgrade_offset, sizeof(request) - 1 - http_socket->upgrade_offset, 0);
-
-        /* Now we should be */
-        if (http_socket->upgrade_offset == sizeof(request) - 1) {
-            next_connection(s);
-        }
-    } else {
-        /* Stream whatever is remaining of the request */
-        http_socket->offset += us_socket_write(SSL, s, (char *) web_socket_request + http_socket->offset, sizeof(web_socket_request) - http_socket->offset, 0);
-    }
-
-    return s;
-}
-
-struct us_socket_t *on_http_socket_close(struct us_socket_t *s) {
-
-    printf("Closed!\n");
-
-    return s;
-}
-
-struct us_socket_t *on_http_socket_end(struct us_socket_t *s) {
-    return us_socket_close(SSL, s);
-}
-
-struct us_socket_t *on_http_socket_data(struct us_socket_t *s, char *data, int length) {
-    /* Get socket extension and the socket's context's extension */
-    struct http_socket *http_socket = (struct http_socket *) us_socket_ext(SSL, s);
-    //struct http_context *http_context = (struct http_context *) us_socket_context_ext(SSL, us_socket_context(SSL, s));
-
-    /* We treat all data events as a response */
-    http_socket->offset = us_socket_write(SSL, s, (char *) web_socket_request, sizeof(web_socket_request), 0);
-
-    /* */
-    responses++;
-
-    return s;
-}
-
-struct us_socket_t *on_http_socket_open(struct us_socket_t *s, int is_client, char *ip, int ip_length) {
-    struct http_socket *http_socket = (struct http_socket *) us_socket_ext(SSL, s);
-
-    /* Reset offsets */
-    http_socket->offset = 0;
-
-    /* Send an upgrade request */
-    http_socket->upgrade_offset = us_socket_write(SSL, s, request, sizeof(request) - 1, 0);
-    if (http_socket->upgrade_offset == sizeof(request) - 1) {
-        next_connection(s);
-    }
-
-    return s;
-}
-
-struct us_socket_t *on_http_socket_timeout(struct us_socket_t *s) {
-    /* Print current statistics */
-    printf("Msg/sec: %f\n", ((float)responses) / LIBUS_TIMEOUT_GRANULARITY);
-
-    responses = 0;
-    us_socket_timeout(SSL, s, LIBUS_TIMEOUT_GRANULARITY);
-
-    return s;
-}
-
-int main(int argc, char **argv) {
-
-    /* Parse host and port */
-    if (argc != 5) {
-        printf("Usage: connections host port ssl\n");
-        return 0;
-    }
-
-    port = atoi(argv[3]);
-    host = malloc(strlen(argv[2]) + 1);
-    memcpy(host, argv[2], strlen(argv[2]) + 1);
-    connections = atoi(argv[1]);
-    SSL = atoi(argv[4]);
-
-    /* Create the event loop */
-    struct us_loop_t *loop = us_create_loop(0, on_wakeup, on_pre, on_post, 0);
-
-    /* Create a socket context for HTTP */
-    struct us_socket_context_options_t options = {};
-    struct us_socket_context_t *http_context = us_create_socket_context(SSL, loop, 0, options);
-
-    /* Set up event handlers */
-    us_socket_context_on_open(SSL, http_context, on_http_socket_open);
-    us_socket_context_on_data(SSL, http_context, on_http_socket_data);
-    us_socket_context_on_writable(SSL, http_context, on_http_socket_writable);
-    us_socket_context_on_close(SSL, http_context, on_http_socket_close);
-    us_socket_context_on_timeout(SSL, http_context, on_http_socket_timeout);
-    us_socket_context_on_end(SSL, http_context, on_http_socket_end);
-
-    /* Start making HTTP connections */
-    us_socket_context_connect(SSL, http_context, host, port, 0, sizeof(struct http_socket));
-
-    us_loop_run(loop);
-}

benchmarks/scale_test.c

@@ -1,185 +0,0 @@
-/* This is a scalability test for testing million(s) of pinging connections */
-
-#include <libusockets.h>
-int SSL;
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-unsigned char web_socket_request[26] = {130, 128 | 20, 1, 2, 3, 4};
-
-char request[] = "GET / HTTP/1.1\r\n"
-                 "Upgrade: websocket\r\n"
-                 "Connection: Upgrade\r\n"
-                 "Sec-WebSocket-Key: x3JJHMbDL1EzLkh9GBhXDw==\r\n"
-                 "Host: server.example.com\r\n"
-                 "Sec-WebSocket-Version: 13\r\n\r\n";
-char *host;
-int port;
-int connections;
-
-/* Send ping every 16 seconds */
-int WEBSOCKET_PING_INTERVAL = 16;
-
-/* We only establish 20k connections per address */
-int CONNECTIONS_PER_ADDRESS = 20000;
-
-/* How many connections a time */
-int BATCH_CONNECT = 1;
-
-/* Currently open and alive connections */
-int opened_connections;
-/* Dead connections */
-int closed_connections;
-
-struct http_socket {
-    /* How far we have streamed our websocket request */
-    int offset;
-
-    /* How far we have streamed our upgrade request */
-    int upgrade_offset;
-};
-
-/* We don't need any of these */
-void on_wakeup(struct us_loop_t *loop) {
-
-}
-
-void on_pre(struct us_loop_t *loop) {
-
-}
-
-/* This is not HTTP POST, it is merely an event emitted post loop iteration */
-void on_post(struct us_loop_t *loop) {
-
-}
-
-void next_connection(struct us_socket_t *s) {
-    /* We could wait with this until properly upgraded */
-    if (--connections/* > BATCH_CONNECT*/) {
-        /* Swap address */
-        int address = opened_connections / CONNECTIONS_PER_ADDRESS + 1;
-        char buf[16];
-        sprintf(buf, "127.0.0.%d", address);
-
-        us_socket_context_connect(SSL, us_socket_context(SSL, s), buf, port, 0, sizeof(struct http_socket));
-    }
-}
-
-struct us_socket_t *on_http_socket_writable(struct us_socket_t *s) {
-    struct http_socket *http_socket = (struct http_socket *) us_socket_ext(SSL, s);
-
-    /* Are we still not upgraded yet? */
-    if (http_socket->upgrade_offset < sizeof(request) - 1) {
-        http_socket->upgrade_offset += us_socket_write(SSL, s, request + http_socket->upgrade_offset, sizeof(request) - 1 - http_socket->upgrade_offset, 0);
-
-        /* Now we should be */
-        if (http_socket->upgrade_offset == sizeof(request) - 1) {
-            next_connection(s);
-
-            /* Make sure to send ping */
-            us_socket_timeout(SSL, s, WEBSOCKET_PING_INTERVAL);
-        }
-    } else {
-        /* Stream whatever is remaining of the request */
-        http_socket->offset += us_socket_write(SSL, s, (char *) web_socket_request + http_socket->offset, sizeof(web_socket_request) - http_socket->offset, 0);
-        if (http_socket->offset == sizeof(web_socket_request)) {
-            /* Reset timeout if we managed to */
-            us_socket_timeout(SSL, s, WEBSOCKET_PING_INTERVAL);
-        }
-    }
-
-    return s;
-}
-
-struct us_socket_t *on_http_socket_close(struct us_socket_t *s) {
-
-    closed_connections++;
-    if (closed_connections % 1000 == 0) {
-        printf("Alive: %d, dead: %d\n", opened_connections, closed_connections);
-    }
-
-    return s;
-}
-
-struct us_socket_t *on_http_socket_end(struct us_socket_t *s) {
-    return us_socket_close(SSL, s);
-}
-
-// should never get a response!
-struct us_socket_t *on_http_socket_data(struct us_socket_t *s, char *data, int length) {
-    return s;
-}
-
-struct us_socket_t *on_http_socket_open(struct us_socket_t *s, int is_client, char *ip, int ip_length) {
-    struct http_socket *http_socket = (struct http_socket *) us_socket_ext(SSL, s);
-
-    /* Display number of opened connections */
-    opened_connections++;
-    if (opened_connections % 1000 == 0) {
-        printf("Alive: %d, dead: %d\n", opened_connections, closed_connections);
-    }
-
-    /* Send an upgrade request */
-    http_socket->upgrade_offset = us_socket_write(SSL, s, request, sizeof(request) - 1, 0);
-    if (http_socket->upgrade_offset == sizeof(request) - 1) {
-        next_connection(s);
-
-        /* Make sure to send ping */
-        us_socket_timeout(SSL, s, WEBSOCKET_PING_INTERVAL);
-    }
-
-    return s;
-}
-
-// here we should send a message as ping (part of the test)
-struct us_socket_t *on_http_socket_timeout(struct us_socket_t *s) {
-    struct http_socket *http_socket = (struct http_socket *) us_socket_ext(SSL, s);
-
-    /* Send ping here */
-    http_socket->offset = us_socket_write(SSL, s, (char *) web_socket_request, sizeof(web_socket_request), 0);
-    if (http_socket->offset == sizeof(web_socket_request)) {
-        /* Reset timeout if we managed to */
-        us_socket_timeout(SSL, s, WEBSOCKET_PING_INTERVAL);
-    }
-
-    return s;
-}
-
-int main(int argc, char **argv) {
-
-    /* Parse host and port */
-    if (argc != 5) {
-        printf("Usage: connections host port ssl\n");
-        return 0;
-    }
-
-    port = atoi(argv[3]);
-    host = malloc(strlen(argv[2]) + 1);
-    memcpy(host, argv[2], strlen(argv[2]) + 1);
-    connections = atoi(argv[1]);
-    SSL = atoi(argv[4]);
-
-    /* Create the event loop */
-    struct us_loop_t *loop = us_create_loop(0, on_wakeup, on_pre, on_post, 0);
-
-    /* Create a socket context for HTTP */
-    struct us_socket_context_options_t options = {};
-    struct us_socket_context_t *http_context = us_create_socket_context(SSL, loop, 0, options);
-
-    /* Set up event handlers */
-    us_socket_context_on_open(SSL, http_context, on_http_socket_open);
-    us_socket_context_on_data(SSL, http_context, on_http_socket_data);
-    us_socket_context_on_writable(SSL, http_context, on_http_socket_writable);
-    us_socket_context_on_close(SSL, http_context, on_http_socket_close);
-    us_socket_context_on_timeout(SSL, http_context, on_http_socket_timeout);
-    us_socket_context_on_end(SSL, http_context, on_http_socket_end);
-
-    /* Start making HTTP connections */
-    for (int i = 0; i < BATCH_CONNECT; i++) {
-        us_socket_context_connect(SSL, http_context, host, port, 0, sizeof(struct http_socket));
-    }
-
-    us_loop_run(loop);
-}

docker-compose.yml

@@ -0,0 +1,11 @@
+version: "3.3"
+services:
+  push:
+    entrypoint: ws push_server --host 0.0.0.0
+    image: ${DOCKER_REPO}/ws:build
+
+  autoroute:
+    entrypoint: ws autoroute ws://push:8008
+    image: ${DOCKER_REPO}/ws:build
+    depends_on:
+      - push

docker/Dockerfile.alpine

@@ -0,0 +1,39 @@
+FROM alpine:3.12 as build
+
+RUN apk add --no-cache \
+    gcc g++ musl-dev linux-headers \
+    cmake mbedtls-dev make zlib-dev python3-dev ninja git
+
+RUN addgroup -S app && \
+    adduser -S -G app app && \
+    chown -R app:app /opt && \
+    chown -R app:app /usr/local
+
+# There is a bug in CMake where we cannot build from the root top folder
+# So we build from /opt
+COPY --chown=app:app . /opt
+WORKDIR /opt
+
+USER app
+RUN make -f makefile.dev ws_mbedtls_install && \
+    sh tools/trim_repo_for_docker.sh
+
+FROM alpine:3.12 as runtime
+
+RUN apk add --no-cache libstdc++ mbedtls ca-certificates python3 strace && \
+    addgroup -S app && \
+    adduser -S -G app app
+
+COPY --chown=app:app --from=build /usr/local/bin/ws /usr/local/bin/ws
+
+# COPY --chown=app:app --from=build /opt /opt
+
+RUN chmod +x /usr/local/bin/ws && \
+    ldd /usr/local/bin/ws
+
+# Now run in usermode
+USER app
+WORKDIR /home/app
+
+ENTRYPOINT ["ws"]
+EXPOSE 8008

docker/Dockerfile.centos

@@ -0,0 +1,41 @@
+FROM centos:8 as build
+
+RUN yum install -y gcc-c++ make cmake zlib-devel openssl-devel redhat-rpm-config
+
+RUN yum install -y epel-release
+RUN yum install -y mbedtls-devel
+
+RUN groupadd app && useradd -g app app
+RUN chown -R app:app /opt
+RUN chown -R app:app /usr/local
+
+# There is a bug in CMake where we cannot build from the root top folder
+# So we build from /opt
+COPY --chown=app:app . /opt
+WORKDIR /opt
+
+USER app
+RUN [ "make", "ws_mbedtls_install" ]
+RUN [ "rm", "-rf", "build" ]
+
+FROM centos:8 as runtime
+
+RUN yum install -y gdb strace
+
+RUN yum install -y epel-release
+RUN yum install -y mbedtls
+
+RUN groupadd app && useradd -g app app
+COPY --chown=app:app --from=build /usr/local/bin/ws /usr/local/bin/ws
+RUN chmod +x /usr/local/bin/ws
+RUN ldd /usr/local/bin/ws
+
+# Copy source code for gcc
+COPY --chown=app:app --from=build /opt /opt
+
+# Now run in usermode
+USER app
+WORKDIR /home/app
+
+ENTRYPOINT ["ws"]
+EXPOSE 8008

docker/Dockerfile.centos7

@@ -0,0 +1,26 @@
+FROM centos:7 as build
+
+RUN yum install -y gcc-c++ make zlib-devel openssl-devel redhat-rpm-config
+
+RUN groupadd app && useradd -g app app
+RUN chown -R app:app /opt
+RUN chown -R app:app /usr/local
+
+WORKDIR /tmp
+RUN curl -O https://cmake.org/files/v3.14/cmake-3.14.0-Linux-x86_64.tar.gz
+RUN tar zxvf cmake-3.14.0-Linux-x86_64.tar.gz
+RUN cp -rf cmake-3.14.0-Linux-x86_64/* /usr/
+
+RUN yum install -y git
+
+# There is a bug in CMake where we cannot build from the root top folder
+# So we build from /opt
+COPY --chown=app:app . /opt
+WORKDIR /opt
+
+USER app
+RUN [ "make", "ws_no_python" ]
+RUN [ "rm", "-rf", "build" ]
+
+ENTRYPOINT ["ws"]
+CMD ["--help"]

docker/Dockerfile.debian

@@ -0,0 +1,52 @@
+# Build time
+FROM debian:buster as build
+
+ENV DEBIAN_FRONTEND noninteractive
+RUN apt-get update
+RUN apt-get -y install wget
+RUN mkdir -p /tmp/cmake
+WORKDIR /tmp/cmake
+RUN wget https://github.com/Kitware/CMake/releases/download/v3.14.0/cmake-3.14.0-Linux-x86_64.tar.gz
+RUN tar zxf cmake-3.14.0-Linux-x86_64.tar.gz
+
+RUN apt-get -y install g++
+RUN apt-get -y install libssl-dev
+RUN apt-get -y install libz-dev
+RUN apt-get -y install make
+
+COPY . .
+
+ARG CMAKE_BIN_PATH=/tmp/cmake/cmake-3.14.0-Linux-x86_64/bin
+ENV PATH="${CMAKE_BIN_PATH}:${PATH}"
+
+RUN ["make"]
+
+# Runtime
+FROM debian:buster as runtime
+
+ENV DEBIAN_FRONTEND noninteractive
+RUN apt-get update
+# Runtime
+RUN apt-get install -y libssl1.1
+RUN apt-get install -y ca-certificates
+RUN ["update-ca-certificates"]
+
+# Debugging
+RUN apt-get install -y strace
+RUN apt-get install -y procps
+RUN apt-get install -y htop
+
+RUN adduser --disabled-password --gecos '' app
+COPY --chown=app:app --from=build /usr/local/bin/ws /usr/local/bin/ws
+RUN chmod +x /usr/local/bin/ws
+RUN ldd /usr/local/bin/ws
+
+# Now run in usermode
+USER app
+WORKDIR /home/app
+
+COPY --chown=app:app ws/snake/appsConfig.json .
+COPY --chown=app:app ws/cobraMetricsSample.json .
+
+ENTRYPOINT ["ws"]
+CMD ["--help"]

docker/Dockerfile.fedora

@@ -0,0 +1,43 @@
+FROM fedora:30 as build
+
+RUN yum install -y gcc-g++
+RUN yum install -y cmake
+RUN yum install -y make
+RUN yum install -y openssl-devel
+
+RUN yum install -y wget
+RUN mkdir -p /tmp/cmake
+WORKDIR /tmp/cmake
+RUN wget https://github.com/Kitware/CMake/releases/download/v3.14.0/cmake-3.14.0-Linux-x86_64.tar.gz
+RUN tar zxf cmake-3.14.0-Linux-x86_64.tar.gz
+
+ARG CMAKE_BIN_PATH=/tmp/cmake/cmake-3.14.0-Linux-x86_64/bin
+ENV PATH="${CMAKE_BIN_PATH}:${PATH}"
+
+RUN yum install -y python
+RUN yum install -y libtsan
+RUN yum install -y zlib-devel
+
+COPY . .
+# RUN ["make", "test"]
+RUN ["make"]
+
+# Runtime
+FROM fedora:30 as runtime
+
+RUN yum install -y libtsan
+
+RUN groupadd app && useradd -g app app
+COPY --chown=app:app --from=build /usr/local/bin/ws /usr/local/bin/ws
+RUN chmod +x /usr/local/bin/ws
+RUN ldd /usr/local/bin/ws
+
+# Now run in usermode
+USER app
+WORKDIR /home/app
+
+COPY --chown=app:app ws/snake/appsConfig.json .
+COPY --chown=app:app ws/cobraMetricsSample.json .
+
+ENTRYPOINT ["ws"]
+CMD ["--help"]

docker/Dockerfile.ubuntu_bionic

@@ -0,0 +1,23 @@
+# Build time
+FROM ubuntu:bionic as build
+
+ENV DEBIAN_FRONTEND noninteractive
+RUN apt-get update
+RUN apt-get -y install wget
+RUN mkdir -p /tmp/cmake
+WORKDIR /tmp/cmake
+RUN wget https://github.com/Kitware/CMake/releases/download/v3.14.0/cmake-3.14.0-Linux-x86_64.tar.gz
+RUN tar zxf cmake-3.14.0-Linux-x86_64.tar.gz
+
+RUN apt-get -y install g++
+RUN apt-get -y install libssl-dev
+RUN apt-get -y install libz-dev
+RUN apt-get -y install make
+RUN apt-get -y install python
+
+COPY . .
+
+ARG CMAKE_BIN_PATH=/tmp/cmake/cmake-3.14.0-Linux-x86_64/bin
+ENV PATH="${CMAKE_BIN_PATH}:${PATH}"
+
+RUN ["make", "ws"]

docker/Dockerfile.ubuntu_disco

@@ -0,0 +1,24 @@
+# Build time
+FROM ubuntu:disco as build
+
+ENV DEBIAN_FRONTEND noninteractive
+RUN apt-get update
+RUN apt-get -y install wget
+RUN mkdir -p /tmp/cmake
+WORKDIR /tmp/cmake
+RUN wget https://github.com/Kitware/CMake/releases/download/v3.14.0/cmake-3.14.0-Linux-x86_64.tar.gz
+RUN tar zxf cmake-3.14.0-Linux-x86_64.tar.gz
+
+RUN apt-get -y install g++
+RUN apt-get -y install libssl-dev
+RUN apt-get -y install libz-dev
+RUN apt-get -y install make
+RUN apt-get -y install python
+
+COPY . .
+
+ARG CMAKE_BIN_PATH=/tmp/cmake/cmake-3.14.0-Linux-x86_64/bin
+ENV PATH="${CMAKE_BIN_PATH}:${PATH}"
+
+# RUN ["make", "test"]
+CMD ["sh"]

docker/Dockerfile.ubuntu_groovy

@@ -0,0 +1,23 @@
+# Build time
+FROM ubuntu:groovy as build
+
+ENV DEBIAN_FRONTEND noninteractive
+RUN apt-get update
+
+RUN apt-get -y install g++ libssl-dev libz-dev make python ninja-build
+RUN apt-get -y install cmake
+RUN apt-get -y install gdb
+
+COPY . /opt
+WORKDIR /opt
+
+#
+# To use the container interactively for debugging/building
+# 1. Build with
+#    CMD ["ls"]
+# 2. Run with
+#    docker run --entrypoint sh -it docker-game-eng-dev.addsrv.com/ws:9.10.6 
+#
+
+RUN ["make", "test"]
+# CMD ["ls"]

docker/Dockerfile.ubuntu_precise

@@ -0,0 +1,27 @@
+# Build time
+FROM ubuntu:precise as build
+
+ENV DEBIAN_FRONTEND noninteractive
+RUN apt-get update
+RUN apt-get -y install wget
+RUN mkdir -p /tmp/cmake
+WORKDIR /tmp/cmake
+RUN wget --no-check-certificate https://github.com/Kitware/CMake/releases/download/v3.14.0/cmake-3.14.0-Linux-x86_64.tar.gz
+RUN tar zxf cmake-3.14.0-Linux-x86_64.tar.gz
+
+RUN apt-get -y install g++
+RUN apt-get -y install libssl-dev
+RUN apt-get -y install libz-dev
+RUN apt-get -y install make
+RUN apt-get -y install python
+RUN apt-get -y install git
+
+COPY . .
+
+ARG CMAKE_BIN_PATH=/tmp/cmake/cmake-3.14.0-Linux-x86_64/bin
+ENV PATH="${CMAKE_BIN_PATH}:${PATH}"
+
+RUN ["make", "ws_no_python"]
+
+ENTRYPOINT ["ws"]
+CMD ["--help"]

docker/Dockerfile.ubuntu_trusty

@@ -0,0 +1,22 @@
+# Build time
+FROM ubuntu:trusty as build
+
+ENV DEBIAN_FRONTEND noninteractive
+RUN apt-get update
+RUN apt-get -y install wget
+RUN mkdir -p /tmp/cmake
+WORKDIR /tmp/cmake
+RUN wget --no-check-certificate https://github.com/Kitware/CMake/releases/download/v3.14.0/cmake-3.14.0-Linux-x86_64.tar.gz
+RUN tar zxf cmake-3.14.0-Linux-x86_64.tar.gz
+
+RUN apt-get -y install g++ libssl-dev libz-dev make python git
+
+COPY . .
+
+ARG CMAKE_BIN_PATH=/tmp/cmake/cmake-3.14.0-Linux-x86_64/bin
+ENV PATH="${CMAKE_BIN_PATH}:${PATH}"
+
+RUN ["make", "ws_no_python"]
+
+ENTRYPOINT ["ws"]
+CMD ["--help"]

docker/Dockerfile.ubuntu_xenial

@@ -0,0 +1,24 @@
+# Build time
+FROM ubuntu:xenial as build
+
+ENV DEBIAN_FRONTEND noninteractive
+RUN apt-get update
+RUN apt-get -y install wget
+RUN mkdir -p /tmp/cmake
+WORKDIR /tmp/cmake
+RUN wget https://github.com/Kitware/CMake/releases/download/v3.14.0/cmake-3.14.0-Linux-x86_64.tar.gz
+RUN tar zxf cmake-3.14.0-Linux-x86_64.tar.gz
+
+RUN apt-get -y install g++
+RUN apt-get -y install libssl-dev
+RUN apt-get -y install libz-dev
+RUN apt-get -y install make
+RUN apt-get -y install python
+
+COPY . .
+
+ARG CMAKE_BIN_PATH=/tmp/cmake/cmake-3.14.0-Linux-x86_64/bin
+ENV PATH="${CMAKE_BIN_PATH}:${PATH}"
+
+# RUN ["make"]
+RUN ["make", "test"]

docs/build.md

@@ -0,0 +1,93 @@
+## Build
+
+### CMake
+
+CMakefiles for the library and the examples are available. This library has few dependencies, so it is possible to just add the source files into your project. Otherwise the usual way will suffice.
+
+```
+mkdir build # make a build dir so that you can build out of tree.
+cd build
+cmake -DUSE_TLS=1 ..
+make -j
+make install # will install to /usr/local on Unix, on macOS it is a good idea to sudo chown -R `whoami`:staff /usr/local
+```
+
+Headers and a static library will be installed to the target dir.
+There is a unittest which can be executed by typing `make test`.
+
+Options for building:
+
+* `-DBUILD_SHARED_LIBS=ON` will build the unittest as a shared libary instead of a static library, which is the default
+* `-DUSE_ZLIB=1` will enable zlib support, required for http client + server + websocket per message deflate extension
+* `-DUSE_TLS=1` will enable TLS support
+* `-DUSE_OPEN_SSL=1` will use [openssl](https://www.openssl.org/) for the TLS support (default on Linux and Windows). When using a custom version of openssl (say a prebuilt version, odd runtime problems can happens, as in #319, and special cmake trickery will be required (see this [comment](https://github.com/machinezone/IXWebSocket/issues/175#issuecomment-620231032))
+* `-DUSE_MBED_TLS=1` will use [mbedlts](https://tls.mbed.org/) for the TLS support
+* `-DUSE_WS=1` will build the ws interactive command line tool
+* `-DUSE_TEST=1` will build the unittest
+
+If you are on Windows, look at the [appveyor](https://github.com/machinezone/IXWebSocket/blob/master/appveyor.yml) file (not maintained much though) or rather the [github actions](https://github.com/machinezone/IXWebSocket/blob/master/.github/workflows/unittest_windows.yml) which have instructions for building dependencies.
+
+It is also possible to externally include the project, so that everything is fetched over the wire when you build like so:
+
+```
+    ExternalProject_Add(
+        IXWebSocket
+        GIT_REPOSITORY https://github.com/machinezone/IXWebSocket.git
+        ...
+    )
+```
+
+### vcpkg
+
+It is possible to get IXWebSocket through Microsoft [vcpkg](https://github.com/microsoft/vcpkg).
+
+```
+vcpkg install ixwebsocket
+```
+To use the installed package within a cmake project, use the following:
+```cmake
+ set(CMAKE_TOOLCHAIN_FILE "$ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake" CACHE STRING "") # this is super important in order for cmake to include the vcpkg search/lib paths!
+
+ # find library and its headers
+ find_path(IXWEBSOCKET_INCLUDE_DIR ixwebsocket/IXWebSocket.h)
+ find_library(IXWEBSOCKET_LIBRARY ixwebsocket)
+ # include headers
+ include_directories(${IXWEBSOCKET_INCLUDE_DIR})
+ # ...
+ target_link_libraries(${PROJECT_NAME} ... ${IXWEBSOCKET_LIBRARY}) # Cmake will automatically fail the generation if the lib was not found, i.e is set to NOTFOUND
+
+```
+
+### Conan
+
+[ ![Download](https://api.bintray.com/packages/conan/conan-center/ixwebsocket%3A_/images/download.svg) ](https://bintray.com/conan/conan-center/ixwebsocket%3A_/_latestVersion)
+
+Conan is currently supported through a recipe in [Conan Center](https://github.com/conan-io/conan-center-index/tree/master/recipes/ixwebsocket) ([Bintray entry](https://bintray.com/conan/conan-center/ixwebsocket%3A_)).
+
+Package reference
+
+* Conan 1.21.0 and up: `ixwebsocket/7.9.2`
+* Earlier versions: `ixwebsocket/7.9.2@_/_`
+
+Note that the version listed here might not be the latest one. See Bintray or the recipe itself for the latest version. If you're migrating from the previous, custom Bintray remote, note that the package reference _has_ to be lower-case.
+
+### Docker
+
+There is a Dockerfile for running the unittest on Linux, and to run the `ws` tool. It is also available on the docker registry.
+
+```
+docker run docker.pkg.github.com/machinezone/ixwebsocket/ws:latest --help
+```
+
+To use docker-compose you must make a docker container first.
+
+```
+$ make docker
+...
+$ docker compose up &
+...
+$ docker exec -it ixwebsocket_ws_1 bash
+app@ca2340eb9106:~$ ws --help
+ws is a websocket tool
+...
+```

docs/design.md

@@ -0,0 +1,76 @@
+## Implementation details
+
+### Per Message Deflate compression.
+
+The per message deflate compression option is supported. It can lead to very nice bandbwith savings (20x !) if your messages are similar, which is often the case for example for chat applications. All features of the spec should be supported.
+
+### TLS/SSL
+
+Connections can be optionally secured and encrypted with TLS/SSL when using a wss:// endpoint, or using normal un-encrypted socket with ws:// endpoints. AppleSSL is used on iOS and macOS, OpenSSL and mbedTLS can be used on Android, Linux and Windows.
+
+If you are using OpenSSL, try to be on a version higher than 1.1.x as there there are thread safety problems with 1.0.x.
+
+### Polling and background thread work
+
+No manual polling to fetch data is required. Data is sent and received instantly by using a background thread for receiving data and the select [system](http://man7.org/linux/man-pages/man2/select.2.html) call to be notified by the OS of incoming data. No timeout is used for select so that the background thread is only woken up when data is available, to optimize battery life. This is also the recommended way of using select according to the select tutorial, section [select law](https://linux.die.net/man/2/select_tut). Read and Writes to the socket are non blocking. Data is sent right away and not enqueued by writing directly to the socket, which is [possible](https://stackoverflow.com/questions/1981372/are-parallel-calls-to-send-recv-on-the-same-socket-valid) since system socket implementations allow concurrent read/writes.
+
+### Automatic reconnection
+
+If the remote end (server) breaks the connection, the code will try to perpetually reconnect, by using an exponential backoff strategy, capped at one retry every 10 seconds. This behavior can be disabled.
+
+### Large messages
+
+Large frames are broken up into smaller chunks or messages to avoid filling up the os tcp buffers, which is permitted thanks to WebSocket [fragmentation](https://tools.ietf.org/html/rfc6455#section-5.4). Messages up to 1G were sent and received succesfully.
+
+### Testing
+
+The library has an interactive tool which is handy for testing compatibility ith other libraries. We have tested our client against Python, Erlang, Node.js, and C++ websocket server libraries.
+
+The unittest tries to be comprehensive, and has been running on multiple platforms, with different sanitizers such as a thread sanitizer to catch data races or the undefined behavior sanitizer.
+
+The regression test is running after each commit on github actions for multiple configurations.
+
+## Limitations
+
+* On some configuration (mostly Android) certificate validation needs to be setup so that SocketTLSOptions.caFile point to a pem file, such as the one distributed by Firefox. Unless that setup is done connecting to a wss endpoint will display an error. With mbedtls the message will contain `error in handshake : X509 - Certificate verification failed, e.g. CRL, CA or signature check failed`.
+* Automatic reconnection works at the TCP socket level, and will detect remote end disconnects. However, if the device/computer network become unreachable (by turning off wifi), it is quite hard to reliably and timely detect it at the socket level using `recv` and `send` error codes. [Here](https://stackoverflow.com/questions/14782143/linux-socket-how-to-detect-disconnected-network-in-a-client-program) is a good discussion on the subject. This behavior is consistent with other runtimes such as node.js. One way to detect a disconnected device with low level C code is to do a name resolution with DNS but this can be expensive. Mobile devices have good and reliable API to do that.
+* The server code is using select to detect incoming data, and creates one OS thread per connection. This is not as scalable as strategies using epoll or kqueue.
+
+## C++ code organization
+
+Here is a simplistic diagram which explains how the code is structured in term of class/modules.
+
+```
++-----------------------+ --- Public
+|                       | Start the receiving Background thread. Auto reconnection. Simple websocket Ping.
+|  IXWebSocket          | Interface used by C++ test clients. No IX dependencies.
+|                       |
++-----------------------+
+|                       |
+|  IXWebSocketServer    | Run a server and give each connections its own WebSocket object.
+|                       | Each connection is handled in a new OS thread.
+|                       |
++-----------------------+ --- Private
+|                       |
+|  IXWebSocketTransport | Low level websocket code, framing, managing raw socket. Adapted from easywsclient.
+|                       |
++-----------------------+
+|                       |
+|  IXWebSocketHandshake | Establish the connection between client and server.
+|                       |
++-----------------------+
+|                       |
+|  IXWebSocket          | ws://  Unencrypted Socket handler
+|  IXWebSocketAppleSSL  | wss:// TLS encrypted Socket AppleSSL handler. Used on iOS and macOS
+|  IXWebSocketOpenSSL   | wss:// TLS encrypted Socket OpenSSL handler.  Used on Android and Linux
+|                       |                                               Can be used on macOS too.
++-----------------------+
+|                       |
+|  IXSocketConnect      | Connect to the remote host (client).
+|                       |
++-----------------------+
+|                       |
+|  IXDNSLookup          | Does DNS resolution asynchronously so that it can be interrupted.
+|                       |
++-----------------------+
+```

docs/index.md

@@ -0,0 +1,149 @@
+## Hello world
+
+IXWebSocket is a C++ library for WebSocket client and server development. It has minimal dependencies (no boost), is very simple to use and support everything you'll likely need for websocket dev (SSL, deflate compression, compiles on most platforms, etc...). HTTP client and server code is also available, but it hasn't received as much testing.
+
+It is been used on big mobile video game titles sending and receiving tons of messages since 2017 (iOS and Android). It was tested on macOS, iOS, Linux, Android, Windows and FreeBSD. Note that the MinGW compiler is not supported at this point. Two important design goals are simplicity and correctness.
+
+A bad security bug affecting users compiling with SSL enabled and OpenSSL as the backend was just fixed in newly released version 11.0.0. Please upgrade ! (more details in the [https://github.com/machinezone/IXWebSocket/pull/250](PR).
+
+```cpp
+/*
+ *  main.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2020 Machine Zone, Inc. All rights reserved.
+ *
+ *  Super simple standalone example. See ws folder, unittest and doc/usage.md for more.
+ *
+ *  On macOS
+ *  $ mkdir -p build ; (cd build ; cmake -DUSE_TLS=1 .. ; make -j ; make install)
+ *  $ clang++ --std=c++11 --stdlib=libc++ main.cpp -lixwebsocket -lz -framework Security -framework Foundation
+ *  $ ./a.out
+ *
+ *  Or use cmake -DBUILD_DEMO=ON option for other platforms
+ */
+
+#include <ixwebsocket/IXNetSystem.h>
+#include <ixwebsocket/IXWebSocket.h>
+#include <ixwebsocket/IXUserAgent.h>
+#include <iostream>
+
+int main()
+{
+    // Required on Windows
+    ix::initNetSystem();
+
+    // Our websocket object
+    ix::WebSocket webSocket;
+
+    // Connect to a server with encryption
+    // See https://machinezone.github.io/IXWebSocket/usage/#tls-support-and-configuration
+    std::string url("wss://echo.websocket.org");
+    webSocket.setUrl(url);
+
+    std::cout << "Connecting to " << url << "..." << std::endl;
+
+    // Setup a callback to be fired (in a background thread, watch out for race conditions !)
+    // when a message or an event (open, close, error) is received
+    webSocket.setOnMessageCallback([](const ix::WebSocketMessagePtr& msg)
+        {
+            if (msg->type == ix::WebSocketMessageType::Message)
+            {
+                std::cout << "received message: " << msg->str << std::endl;
+                std::cout << "> " << std::flush;
+            }
+            else if (msg->type == ix::WebSocketMessageType::Open)
+            {
+                std::cout << "Connection established" << std::endl;
+                std::cout << "> " << std::flush;
+            }
+            else if (msg->type == ix::WebSocketMessageType::Error)
+            {
+                // Maybe SSL is not configured properly
+                std::cout << "Connection error: " << msg->errorInfo.reason << std::endl;
+                std::cout << "> " << std::flush;
+            }
+        }
+    );
+
+    // Now that our callback is setup, we can start our background thread and receive messages
+    webSocket.start();
+
+    // Send a message to the server (default to TEXT mode)
+    webSocket.send("hello world");
+
+    // Display a prompt
+    std::cout << "> " << std::flush;
+
+    std::string text;
+    // Read text from the console and send messages in text mode.
+    // Exit with Ctrl-D on Unix or Ctrl-Z on Windows.
+    while (std::getline(std::cin, text))
+    {
+        webSocket.send(text);
+        std::cout << "> " << std::flush;
+    }
+
+    return 0;
+}
+```
+
+Interested? Go read the [docs](https://machinezone.github.io/IXWebSocket/)! If things don't work as expected, please create an issue on GitHub, or even better a pull request if you know how to fix your problem.
+
+IXWebSocket is actively being developed, check out the [changelog](https://machinezone.github.io/IXWebSocket/CHANGELOG/) to know what's cooking. If you are looking for a real time messaging service (the chat-like 'server' your websocket code will talk to) with many features such as history, backed by Redis, look at [cobra](https://github.com/machinezone/cobra).
+
+IXWebSocket client code is autobahn compliant beginning with the 6.0.0 version. See the current [test results](https://bsergean.github.io/autobahn/reports/clients/index.html). Some tests are still failing in the server code.
+
+Starting with the 11.0.8 release, IXWebSocket should be fully C++11 compatible.
+
+## Users
+
+If your company or project is using this library, feel free to open an issue or PR to amend this list.
+
+- [Machine Zone](https://www.mz.com)
+- [Tokio](https://gitlab.com/HCInk/tokio), a discord library focused on audio playback with node bindings.
+- [libDiscordBot](https://github.com/tostc/libDiscordBot/tree/master), an easy to use Discord-bot framework.
+- [gwebsocket](https://github.com/norrbotten/gwebsocket), a websocket (lua) module for Garry's Mod
+- [DisCPP](https://github.com/DisCPP/DisCPP), a simple but feature rich Discord API wrapper
+- [discord.cpp](https://github.com/luccanunes/discord.cpp), a discord library for making bots
+- [Teleport](http://teleportconnect.com/), Teleport is your own personal remote robot avatar
+
+## Alternative libraries
+
+There are plenty of great websocket libraries out there, which might work for you. Here are a couple of serious ones.
+
+* [websocketpp](https://github.com/zaphoyd/websocketpp) - C++
+* [beast](https://github.com/boostorg/beast) - C++
+* [libwebsockets](https://libwebsockets.org/) - C
+* [µWebSockets](https://github.com/uNetworking/uWebSockets) - C
+* [wslay](https://github.com/tatsuhiro-t/wslay) - C
+
+[uvweb](https://github.com/bsergean/uvweb) is a library written by the IXWebSocket author which is built on top of [uvw](https://github.com/skypjack/uvw), which is a C++ wrapper for [libuv](https://libuv.org/). It has more dependencies and does not support SSL at this point, but it can be used to open multiple connections within a single OS thread thanks to libuv.
+
+To check the performance of a websocket library, you can look at the [autoroute](https://github.com/bsergean/autoroute) project.
+
+## Continuous Integration
+
+| OS                | TLS               | Sanitizer         | Status            |
+|-------------------|-------------------|-------------------|-------------------|
+| Linux             | OpenSSL           | None              | [![Build2][1]][0] |
+| macOS             | Secure Transport  | Thread Sanitizer  | [![Build2][2]][0] |
+| macOS             | OpenSSL           | Thread Sanitizer  | [![Build2][3]][0] |
+| macOS             | MbedTLS           | Thread Sanitizer  | [![Build2][4]][0] |
+| Windows           | Disabled          | None              | [![Build2][5]][0] |
+| UWP               | Disabled          | None              | [![Build2][6]][0] |
+| Linux             | OpenSSL           | Address Sanitizer | [![Build2][7]][0] |
+| Mingw             | Disabled          | None              | [![Build2][8]][0] |
+
+* ASAN fails on Linux because of a known problem, we need a 
+* Some tests are disabled on Windows/UWP because of a pathing problem
+* TLS and ZLIB are disabled on Windows/UWP because enabling make the CI run takes a lot of time, for setting up vcpkg.
+
+[0]: https://github.com/machinezone/IXWebSocket
+[1]: https://github.com/machinezone/IXWebSocket/workflows/linux/badge.svg
+[2]: https://github.com/machinezone/IXWebSocket/workflows/mac_tsan_sectransport/badge.svg
+[3]: https://github.com/machinezone/IXWebSocket/workflows/mac_tsan_openssl/badge.svg
+[4]: https://github.com/machinezone/IXWebSocket/workflows/mac_tsan_mbedtls/badge.svg
+[5]: https://github.com/machinezone/IXWebSocket/workflows/windows/badge.svg
+[6]: https://github.com/machinezone/IXWebSocket/workflows/uwp/badge.svg
+[7]: https://github.com/machinezone/IXWebSocket/workflows/linux_asan/badge.svg
+[8]: https://github.com/machinezone/IXWebSocket/workflows/unittest_windows_gcc/badge.svg

docs/packages.md

@@ -0,0 +1,94 @@
+Notes on how we can update the different packages for ixwebsocket.
+
+## VCPKG
+
+Visit the [releases](https://github.com/machinezone/IXWebSocket/releases) page on Github. A tag must have been made first.
+
+Download the latest entry.
+
+```
+$ cd /tmp
+/tmp$ curl -s -O -L https://github.com/machinezone/IXWebSocket/archive/v9.1.9.tar.gz
+/tmp$
+/tmp$ openssl sha512 v9.1.9.tar.gz
+SHA512(v9.1.9.tar.gz)= f1fd731b5f6a9ce6d6d10bee22a5d9d9baaa8ea0564d6c4cd7eb91dcb88a45c49b2c7fdb75f8640a3589c1b30cee33ef5df8dcbb55920d013394d1e33ddd3c8e
+```
+
+Now go punch those values in the vcpkg ixwebsocket port config files. Here is what the diff look like.
+
+```
+vcpkg$ git diff
+diff --git a/ports/ixwebsocket/CONTROL b/ports/ixwebsocket/CONTROL
+index db9c2adc9..4acae5c3f 100644
+--- a/ports/ixwebsocket/CONTROL
++++ b/ports/ixwebsocket/CONTROL
+@@ -1,5 +1,5 @@
+ Source: ixwebsocket
+-Version: 8.0.5
++Version: 9.1.9
+ Build-Depends: zlib
+ Homepage: https://github.com/machinezone/IXWebSocket
+ Description: Lightweight WebSocket Client and Server + HTTP Client and Server
+diff --git a/ports/ixwebsocket/portfile.cmake b/ports/ixwebsocket/portfile.cmake
+index de082aece..68e523a05 100644
+--- a/ports/ixwebsocket/portfile.cmake
++++ b/ports/ixwebsocket/portfile.cmake
+@@ -1,8 +1,8 @@
+ vcpkg_from_github(
+     OUT_SOURCE_PATH SOURCE_PATH
+     REPO machinezone/IXWebSocket
+-    REF v8.0.5
+-    SHA512 9dcc20d9a0629b92c62a68a8bd7c8206f18dbd9e93289b0b687ec13c478ce9ad1f3563b38c399c8277b0d3812cc78ca725786ba1dedbc3445b9bdb9b689e8add
++    REF v9.1.9
++    SHA512 f1fd731b5f6a9ce6d6d10bee22a5d9d9baaa8ea0564d6c4cd7eb91dcb88a45c49b2c7fdb75f8640a3589c1b30cee33ef5df8dcbb55920d013394d1e33ddd3c8e
+ )
+```
+
+You will need a fork of the vcpkg repo to make a pull request.
+
+```
+git fetch upstream
+git co master
+git reset --hard upstream/master
+git push origin master --force
+```
+
+Make the pull request (I use a new branch to do that).
+
+```
+vcpkg$ git co -b feature/ixwebsocket_9.1.9
+M	ports/ixwebsocket/CONTROL
+M	ports/ixwebsocket/portfile.cmake
+Switched to a new branch 'feature/ixwebsocket_9.1.9'
+vcpkg$
+vcpkg$
+vcpkg$ git commit -am 'ixwebsocket: update to 9.1.9'
+[feature/ixwebsocket_9.1.9 8587a4881] ixwebsocket: update to 9.1.9
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+vcpkg$
+vcpkg$ git push
+fatal: The current branch feature/ixwebsocket_9.1.9 has no upstream branch.
+To push the current branch and set the remote as upstream, use
+
+    git push --set-upstream origin feature/ixwebsocket_9.1.9
+
+vcpkg$ git push --set-upstream origin feature/ixwebsocket_9.1.9
+
+Enumerating objects: 11, done.
+Counting objects: 100% (11/11), done.
+Delta compression using up to 8 threads
+Compressing objects: 100% (6/6), done.
+Writing objects: 100% (6/6), 621 bytes | 621.00 KiB/s, done.
+Total 6 (delta 4), reused 0 (delta 0)
+remote: Resolving deltas: 100% (4/4), completed with 4 local objects.
+remote:
+remote: Create a pull request for 'feature/ixwebsocket_9.1.9' on GitHub by visiting:
+remote:      https://github.com/bsergean/vcpkg/pull/new/feature/ixwebsocket_9.1.9
+remote:
+To https://github.com/bsergean/vcpkg.git
+ * [new branch]          feature/ixwebsocket_9.1.9 -> feature/ixwebsocket_9.1.9
+Branch 'feature/ixwebsocket_9.1.9' set up to track remote branch 'feature/ixwebsocket_9.1.9' from 'origin' by rebasing.
+vcpkg$
+```
+
+Just visit this url, https://github.com/bsergean/vcpkg/pull/new/feature/ixwebsocket_9.1.9, printed on the console, to make the pull request.

docs/performance.md

@@ -0,0 +1,37 @@
+
+## WebSocket Client performance
+
+We will run a client and a server on the same machine, connecting to localhost. This bench is run on a MacBook Pro from 2015. We can receive over 200,000 (small) messages per second, another way to put it is that it takes 5 micro-second to receive and process one message. This is an indication about the minimal latency to receive messages.
+
+### Receiving messages
+
+By using the push_server ws sub-command, the server will send the same message in a loop to any connected client.
+
+```
+ws push_server -q --send_msg 'yo'
+```
+
+By using the echo_client ws sub-command, with the -m (mute or no_send), we will display statistics on how many messages we can receive per second.
+
+```
+$ ws echo_client -m ws://localhost:8008
+[2020-08-02 12:31:17.284] [info] ws_echo_client: connected
+[2020-08-02 12:31:17.284] [info] Uri: /
+[2020-08-02 12:31:17.284] [info] Headers:
+[2020-08-02 12:31:17.284] [info] Connection: Upgrade
+[2020-08-02 12:31:17.284] [info] Sec-WebSocket-Accept: byy/pMK2d0PtRwExaaiOnXJTQHo=
+[2020-08-02 12:31:17.284] [info] Server: ixwebsocket/10.1.4 macos ssl/SecureTransport zlib 1.2.11
+[2020-08-02 12:31:17.284] [info] Upgrade: websocket
+[2020-08-02 12:31:17.663] [info] messages received: 0 per second 2595307 total
+[2020-08-02 12:31:18.668] [info] messages received: 79679 per second 2674986 total
+[2020-08-02 12:31:19.668] [info] messages received: 207438 per second 2882424 total
+[2020-08-02 12:31:20.673] [info] messages received: 209207 per second 3091631 total
+[2020-08-02 12:31:21.676] [info] messages received: 216056 per second 3307687 total
+[2020-08-02 12:31:22.680] [info] messages received: 214927 per second 3522614 total
+[2020-08-02 12:31:23.684] [info] messages received: 216960 per second 3739574 total
+[2020-08-02 12:31:24.688] [info] messages received: 215232 per second 3954806 total
+[2020-08-02 12:31:25.691] [info] messages received: 212300 per second 4167106 total
+[2020-08-02 12:31:26.694] [info] messages received: 212501 per second 4379607 total
+[2020-08-02 12:31:27.699] [info] messages received: 212330 per second 4591937 total
+[2020-08-02 12:31:28.702] [info] messages received: 216511 per second 4808448 total
+```

docs/usage.md

@@ -0,0 +1,643 @@
+# Examples
+
+The [*ws*](https://github.com/machinezone/IXWebSocket/tree/master/ws) folder countains many interactive programs for chat, [file transfers](https://github.com/machinezone/IXWebSocket/blob/master/ws/ws_send.cpp), [curl like](https://github.com/machinezone/IXWebSocket/blob/master/ws/ws_http_client.cpp) http clients, demonstrating client and server usage.
+
+## Windows note
+
+To use the network system on Windows, you need to initialize it once with *WSAStartup()* and clean it up with *WSACleanup()*. We have helpers for that which you can use, see below. This init would typically take place in your main function.
+
+```cpp
+#include <ixwebsocket/IXNetSystem.h>
+
+int main()
+{
+    ix::initNetSystem();
+
+    ...
+
+    ix::uninitNetSystem();
+    return 0;
+}
+```
+
+## WebSocket client API
+
+```cpp
+#include <ixwebsocket/IXWebSocket.h>
+
+...
+
+// Our websocket object
+ix::WebSocket webSocket;
+
+std::string url("ws://localhost:8080/");
+webSocket.setUrl(url);
+
+// Optional heart beat, sent every 45 seconds when there is not any traffic
+// to make sure that load balancers do not kill an idle connection.
+webSocket.setPingInterval(45);
+
+// Per message deflate connection is enabled by default. You can tweak its parameters or disable it
+webSocket.disablePerMessageDeflate();
+
+// Setup a callback to be fired when a message or an event (open, close, error) is received
+webSocket.setOnMessageCallback([](const ix::WebSocketMessagePtr& msg)
+    {
+        if (msg->type == ix::WebSocketMessageType::Message)
+        {
+            std::cout << msg->str << std::endl;
+        }
+    }
+);
+
+// Now that our callback is setup, we can start our background thread and receive messages
+webSocket.start();
+
+// Send a message to the server (default to TEXT mode)
+webSocket.send("hello world");
+
+// The message can be sent in BINARY mode (useful if you send MsgPack data for example)
+webSocket.sendBinary("some serialized binary data");
+
+// ... finally ...
+
+// Stop the connection
+webSocket.stop()
+```
+
+### Sending messages
+
+`WebSocketSendInfo result = websocket.send("foo")` will send a message.
+
+If the connection was closed, sending will fail, and the success field of the result object  will be set to false. There could also be a compression error in which case the compressError field will be set to true. The payloadSize field and wireSize fields will tell you respectively how much bytes the message weight, and how many bytes were sent on the wire (potentially compressed + counting the message header (a few bytes).
+
+There is an optional progress callback that can be passed in as the second argument. If a message is large it will be fragmented into chunks which will be sent independantly. Everytime the we can write a fragment into the OS network cache, the callback will be invoked. If a user wants to cancel a slow send, false should be returned from within the callback.
+
+Here is an example code snippet copied from the ws send sub-command. Each fragment weights 32K, so the total integer is the wireSize divided by 32K. As an example if you are sending 32M of data, uncompressed, total will be 1000. current will be set to 0 for the first fragment, then 1, 2 etc...
+
+```
+auto result =
+    _webSocket.sendBinary(serializedMsg, [this, throttle](int current, int total) -> bool {
+        spdlog::info("ws_send: Step {} out of {}", current + 1, total);
+
+        if (throttle)
+        {
+            std::chrono::duration<double, std::milli> duration(10);
+            std::this_thread::sleep_for(duration);
+        }
+
+        return _connected;
+    });
+```
+
+The `send()` and `sendText()` methods check that the string contains only valid UTF-8 characters. If you know that the string is a valid UTF-8 string you can skip that step and use the `sendUtf8Text` method instead.
+
+With the IXWebSocketSendData overloads of `sendUtf8Text` and `sendBinary` it is possible to not only send std::string but also `std::vector<char>`, `std::vector<uint8_t>` and `char*`.
+
+```
+std::vector<uint8_t> data({1, 2, 3, 4});
+auto result = webSocket.sendBinary(data);
+
+const char* text = "Hello World!";
+result = webSocket.sendUtf8Text(IXWebSocketSendData(text, strlen(text)));
+```
+
+### ReadyState
+
+`getReadyState()` returns the state of the connection. There are 4 possible states.
+
+1. ReadyState::Connecting - The connection is not yet open.
+2. ReadyState::Open       - The connection is open and ready to communicate.
+3. ReadyState::Closing    - The connection is in the process of closing.
+4. ReadyState::Closed     - The connection is closed or could not be opened.
+
+### Open and Close notifications
+
+The onMessage event will be fired when the connection is opened or closed. This is similar to the [JavaScript browser API](https://developer.mozilla.org/en-US/docs/Web/API/WebSocket), which has `open` and `close` events notification that can be registered with the browser `addEventListener`.
+
+```cpp
+webSocket.setOnMessageCallback([](const ix::WebSocketMessagePtr& msg)
+    {
+        if (msg->type == ix::WebSocketMessageType::Open)
+        {
+            std::cout << "send greetings" << std::endl;
+
+            // Headers can be inspected (pairs of string/string)
+            std::cout << "Handshake Headers:" << std::endl;
+            for (auto it : msg->headers)
+            {
+                std::cout << it.first << ": " << it.second << std::endl;
+            }
+        }
+        else if (msg->type == ix::WebSocketMessageType::Close)
+        {
+            std::cout << "disconnected" << std::endl;
+
+            // The server can send an explicit code and reason for closing.
+            // This data can be accessed through the closeInfo object.
+            std::cout << msg->closeInfo.code << std::endl;
+            std::cout << msg->closeInfo.reason << std::endl;
+        }
+    }
+);
+```
+
+### Error notification
+
+A message will be fired when there is an error with the connection. The message type will be `ix::WebSocketMessageType::Error`. Multiple fields will be available on the event to describe the error.
+
+```cpp
+webSocket.setOnMessageCallback([](const ix::WebSocketMessagePtr& msg)
+    {
+        if (msg->type == ix::WebSocketMessageType::Error)
+        {
+            std::stringstream ss;
+            ss << "Error: "         << msg->errorInfo.reason      << std::endl;
+            ss << "#retries: "      << msg->errorInfo.retries     << std::endl;
+            ss << "Wait time(ms): " << msg->errorInfo.wait_time   << std::endl;
+            ss << "HTTP Status: "   << msg->errorInfo.http_status << std::endl;
+            std::cout << ss.str() << std::endl;
+        }
+    }
+);
+```
+
+### start, stop
+
+1. `websocket.start()` connect to the remote server and starts the message receiving background thread.
+2. `websocket.stop()` disconnect from the remote server and closes the background thread.
+
+### Configuring the remote url
+
+The url can be set and queried after a websocket object has been created. You will have to call `stop` and `start` if you want to disconnect and connect to that new url.
+
+```cpp
+std::string url("wss://example.com");
+websocket.configure(url);
+```
+
+### Ping/Pong support
+
+Ping/pong messages are used to implement keep-alive. 2 message types exists to identify ping and pong messages. Note that when a ping message is received, a pong is instantly send back as requested by the WebSocket spec.
+
+```cpp
+webSocket.setOnMessageCallback([](const ix::WebSocketMessagePtr& msg)
+    {
+        if (msg->type == ix::WebSocketMessageType::Ping ||
+            msg->type == ix::WebSocketMessageType::Pong)
+        {
+            std::cout << "pong data: " << msg->str << std::endl;
+        }
+    }
+);
+```
+
+A ping message can be sent to the server, with an optional data string.
+
+```cpp
+websocket.ping("ping data, optional (empty string is ok): limited to 125 bytes long");
+```
+
+### Heartbeat.
+
+You can configure an optional heart beat / keep-alive, sent every 45 seconds
+when there is no any traffic to make sure that load balancers do not kill an
+idle connection.
+
+```cpp
+webSocket.setPingInterval(45);
+```
+
+### Supply extra HTTP headers.
+
+You can set extra HTTP headers to be sent during the WebSocket handshake.
+
+```cpp
+WebSocketHttpHeaders headers;
+headers["foo"] = "bar";
+webSocket.setExtraHeaders(headers);
+```
+
+### Subprotocols
+
+You can specify subprotocols to be set during the WebSocket handshake. For more info you can refer to [this doc](https://hpbn.co/websocket/#subprotocol-negotiation).
+
+```cpp
+webSocket.addSubprotocol("appProtocol-v1");
+webSocket.addSubprotocol("appProtocol-v2");
+```
+
+The protocol that the server did accept is available in the open info `protocol` field.
+
+```cpp
+std::cout << "protocol: " << msg->openInfo.protocol << std::endl;
+```
+
+### Automatic reconnection
+
+Automatic reconnection kicks in when the connection is disconnected without the user consent. This feature is on by default and can be turned off.
+
+```cpp
+webSocket.enableAutomaticReconnection();  // turn on
+webSocket.disableAutomaticReconnection(); // turn off
+bool enabled = webSocket.isAutomaticReconnectionEnabled(); // query state
+```
+
+The technique to calculate wait time is called [exponential
+backoff](https://docs.aws.amazon.com/general/latest/gr/api-retries.html). Here
+are the default waiting times between attempts (from connecting with `ws connect ws://foo.com`)
+
+```
+> Connection error: Got bad status connecting to foo.com, status: 301, HTTP Status line: HTTP/1.1 301 Moved Permanently
+
+#retries: 1
+Wait time(ms): 100
+#retries: 2
+Wait time(ms): 200
+#retries: 3
+Wait time(ms): 400
+#retries: 4
+Wait time(ms): 800
+#retries: 5
+Wait time(ms): 1600
+#retries: 6
+Wait time(ms): 3200
+#retries: 7
+Wait time(ms): 6400
+#retries: 8
+Wait time(ms): 10000
+```
+
+The waiting time is capped by default at 10s between 2 attempts, but that value
+can be changed and queried. The minimum waiting time can also be set.
+
+```cpp
+webSocket.setMaxWaitBetweenReconnectionRetries(5 * 1000); // 5000ms = 5s
+uint32_t m = webSocket.getMaxWaitBetweenReconnectionRetries();
+
+webSocket.setMinWaitBetweenReconnectionRetries(1000); // 1000ms = 1s
+uint32_t m = webSocket.getMinWaitBetweenReconnectionRetries();
+```
+
+## Handshake timeout
+
+You can control how long to wait until timing out while waiting for the websocket handshake to be performed.
+
+```
+int handshakeTimeoutSecs = 1;
+setHandshakeTimeout(handshakeTimeoutSecs);
+```
+
+## WebSocket server API
+
+### Legacy api
+
+This api was actually changed to take a weak_ptr<WebSocket> as the first argument to setOnConnectionCallback ; previously it would take a shared_ptr<WebSocket> which was creating cycles and then memory leaks problems.
+
+```cpp
+#include <ixwebsocket/IXWebSocketServer.h>
+
+...
+
+// Run a server on localhost at a given port.
+// Bound host name, max connections and listen backlog can also be passed in as parameters.
+int port = 8008;
+std::string host("127.0.0.1"); // If you need this server to be accessible on a different machine, use "0.0.0.0"
+ix::WebSocketServer server(port, host);
+
+server.setOnConnectionCallback(
+    [&server](std::weak_ptr<WebSocket> webSocket,
+              std::shared_ptr<ConnectionState> connectionState)
+    {
+        std::cout << "Remote ip: " << connectionState->remoteIp << std::endl;
+
+        auto ws = webSocket.lock();
+        if (ws)
+        {
+            ws->setOnMessageCallback(
+                [webSocket, connectionState, &server](const ix::WebSocketMessagePtr msg)
+                {
+                    if (msg->type == ix::WebSocketMessageType::Open)
+                    {
+                        std::cout << "New connection" << std::endl;
+
+                        // A connection state object is available, and has a default id
+                        // You can subclass ConnectionState and pass an alternate factory
+                        // to override it. It is useful if you want to store custom
+                        // attributes per connection (authenticated bool flag, attributes, etc...)
+                        std::cout << "id: " << connectionState->getId() << std::endl;
+
+                        // The uri the client did connect to.
+                        std::cout << "Uri: " << msg->openInfo.uri << std::endl;
+
+                        std::cout << "Headers:" << std::endl;
+                        for (auto it : msg->openInfo.headers)
+                        {
+                            std::cout << it.first << ": " << it.second << std::endl;
+                        }
+                    }
+                    else if (msg->type == ix::WebSocketMessageType::Message)
+                    {
+                        // For an echo server, we just send back to the client whatever was received by the server
+                        // All connected clients are available in an std::set. See the broadcast cpp example.
+                        // Second parameter tells whether we are sending the message in binary or text mode.
+                        // Here we send it in the same mode as it was received.
+                        auto ws = webSocket.lock();
+                        if (ws)
+                        {
+                            ws->send(msg->str, msg->binary);
+                        }
+                    }
+                }
+            }
+        );
+    }
+);
+
+auto res = server.listen();
+if (!res.first)
+{
+    // Error handling
+    return 1;
+}
+
+// Per message deflate connection is enabled by default. It can be disabled
+// which might be helpful when running on low power devices such as a Rasbery Pi
+server.disablePerMessageDeflate();
+
+// Run the server in the background. Server can be stoped by calling server.stop()
+server.start();
+
+// Block until server.stop() is called.
+server.wait();
+
+```
+
+### New api
+
+The new API does not require to use 2 nested callbacks, which is a bit annoying. The real fix is that there was a memory leak due to a shared_ptr cycle, due to passing down a shared_ptr<WebSocket> down to the callbacks.
+
+The webSocket reference is guaranteed to be always valid ; by design the callback will never be invoked with a null webSocket object.
+
+```cpp
+#include <ixwebsocket/IXWebSocketServer.h>
+
+...
+
+// Run a server on localhost at a given port.
+// Bound host name, max connections and listen backlog can also be passed in as parameters.
+int port = 8008;
+std::string host("127.0.0.1"); // If you need this server to be accessible on a different machine, use "0.0.0.0"
+ix::WebSocketServer server(port, host);
+
+server.setOnClientMessageCallback([](std::shared_ptr<ix::ConnectionState> connectionState, ix::WebSocket & webSocket, const ix::WebSocketMessagePtr & msg) {
+    // The ConnectionState object contains information about the connection,
+    // at this point only the client ip address and the port.
+    std::cout << "Remote ip: " << connectionState->getRemoteIp() << std::endl;
+
+    if (msg->type == ix::WebSocketMessageType::Open)
+    {
+        std::cout << "New connection" << std::endl;
+
+        // A connection state object is available, and has a default id
+        // You can subclass ConnectionState and pass an alternate factory
+        // to override it. It is useful if you want to store custom
+        // attributes per connection (authenticated bool flag, attributes, etc...)
+        std::cout << "id: " << connectionState->getId() << std::endl;
+
+        // The uri the client did connect to.
+        std::cout << "Uri: " << msg->openInfo.uri << std::endl;
+
+        std::cout << "Headers:" << std::endl;
+        for (auto it : msg->openInfo.headers)
+        {
+            std::cout << "\t" << it.first << ": " << it.second << std::endl;
+        }
+    }
+    else if (msg->type == ix::WebSocketMessageType::Message)
+    {
+        // For an echo server, we just send back to the client whatever was received by the server
+        // All connected clients are available in an std::set. See the broadcast cpp example.
+        // Second parameter tells whether we are sending the message in binary or text mode.
+        // Here we send it in the same mode as it was received.
+        std::cout << "Received: " << msg->str << std::endl;
+
+        webSocket.send(msg->str, msg->binary);
+    }
+});
+
+auto res = server.listen();
+if (!res.first)
+{
+    // Error handling
+    return 1;
+}
+
+// Per message deflate connection is enabled by default. It can be disabled
+// which might be helpful when running on low power devices such as a Rasbery Pi
+server.disablePerMessageDeflate();
+
+// Run the server in the background. Server can be stoped by calling server.stop()
+server.start();
+
+// Block until server.stop() is called.
+server.wait();
+
+```
+
+### Heartbeat
+
+You can configure an optional heartbeat / keep-alive for the WebSocket server. The heartbeat interval can be adjusted or disabled when constructing the `WebSocketServer`. Setting the interval to `-1` disables the heartbeat feature; this is the default setting. The parameter you set will be applied to every `WebSocket` object that the server creates.
+
+To enable a 45 second heartbeat on a `WebSocketServer`:
+
+```cpp
+int pingIntervalSeconds = 45;
+ix::WebSocketServer server(port, host, backlog, maxConnections, handshakeTimeoutSecs, addressFamily, pingIntervalSeconds);
+```
+
+## HTTP client API
+
+```cpp
+#include <ixwebsocket/IXHttpClient.h>
+
+...
+
+//
+// Preparation
+//
+HttpClient httpClient;
+HttpRequestArgsPtr args = httpClient.createRequest();
+
+// Custom headers can be set
+WebSocketHttpHeaders headers;
+headers["Foo"] = "bar";
+args->extraHeaders = headers;
+
+// Timeout options
+args->connectTimeout = connectTimeout;
+args->transferTimeout = transferTimeout;
+
+// Redirect options
+args->followRedirects = followRedirects;
+args->maxRedirects = maxRedirects;
+
+// Misc
+args->compress = compress; // Enable gzip compression
+args->verbose = verbose;
+args->logger = [](const std::string& msg)
+{
+    std::cout << msg;
+};
+
+//
+// Synchronous Request
+//
+HttpResponsePtr out;
+std::string url = "https://www.google.com";
+
+// HEAD request
+out = httpClient.head(url, args);
+
+// GET request
+out = httpClient.get(url, args);
+
+// POST request with parameters
+HttpParameters httpParameters;
+httpParameters["foo"] = "bar";
+
+// HTTP form data can be passed in as well, for multi-part upload of files
+HttpFormDataParameters httpFormDataParameters;
+httpParameters["baz"] = "booz";
+
+out = httpClient.post(url, httpParameters, httpFormDataParameters, args);
+
+// POST request with a body
+out = httpClient.post(url, std::string("foo=bar"), args);
+
+// PUT and PATCH are available too.
+
+//
+// Result
+//
+auto statusCode = response->statusCode; // Can be HttpErrorCode::Ok, HttpErrorCode::UrlMalformed, etc...
+auto errorCode = response->errorCode; // 200, 404, etc...
+auto responseHeaders = response->headers; // All the headers in a special case-insensitive unordered_map of (string, string)
+auto body = response->body; // All the bytes from the response as an std::string
+auto errorMsg = response->errorMsg; // Descriptive error message in case of failure
+auto uploadSize = response->uploadSize; // Byte count of uploaded data
+auto downloadSize = response->downloadSize; // Byte count of downloaded data
+
+//
+// Asynchronous Request
+//
+bool async = true;
+HttpClient httpClient(async);
+auto args = httpClient.createRequest(url, HttpClient::kGet);
+
+// If you define a chunk callback it will be called repeteadly with the
+// incoming data. This allows to process data on the go or write it to disk
+// instead of accumulating the data in memory.
+args.onChunkCallback = [](const std::string& data)
+{
+    // process data
+};
+
+// Push the request to a queue,
+bool ok = httpClient.performRequest(args, [](const HttpResponsePtr& response)
+    {
+        // This callback execute in a background thread. Make sure you uses appropriate protection such as mutex
+        auto statusCode = response->statusCode; // acess results
+
+        // response->body is empty if onChunkCallback was used
+    }
+);
+
+// ok will be false if your httpClient is not async
+
+// A request in progress can be cancelled by setting the cancel flag. It does nothing if the request already completed.
+args->cancel = true;
+```
+
+See this [issue](https://github.com/machinezone/IXWebSocket/issues/209) for links about uploading files with HTTP multipart.
+
+## HTTP server API
+
+```cpp
+#include <ixwebsocket/IXHttpServer.h>
+
+ix::HttpServer server(port, hostname);
+
+auto res = server.listen();
+if (!res.first)
+{
+    std::cerr << res.second << std::endl;
+    return 1;
+}
+
+server.start();
+server.wait();
+```
+
+If you want to handle how requests are processed, implement the setOnConnectionCallback callback, which takes an HttpRequestPtr as input, and returns an HttpResponsePtr. You can look at HttpServer::setDefaultConnectionCallback for a slightly more advanced callback example.
+
+```cpp
+setOnConnectionCallback(
+    [this](HttpRequestPtr request,
+           std::shared_ptr<ConnectionState> connectionState) -> HttpResponsePtr
+    {
+        // Build a string for the response
+        std::stringstream ss;
+        ss << connectionState->getRemoteIp();
+           << " "
+           << request->method
+           << " "
+           << request->uri;
+
+        std::string content = ss.str();
+
+        return std::make_shared<HttpResponse>(200, "OK",
+                                              HttpErrorCode::Ok,
+                                              WebSocketHttpHeaders(),
+                                              content);
+}
+```
+
+## TLS support and configuration
+
+To leverage TLS features, the library must be compiled with the option `USE_TLS=1`.
+
+If you are using OpenSSL, try to be on a version higher than 1.1.x as there there are thread safety problems with 1.0.x.
+
+Then, secure sockets are automatically used when connecting to a `wss://*` url.
+
+Additional TLS options can be configured by passing a `ix::SocketTLSOptions` instance to the
+`setTLSOptions` on `ix::WebSocket` (or `ix::WebSocketServer` or `ix::HttpServer`)
+
+```cpp
+webSocket.setTLSOptions({
+    .certFile = "path/to/cert/file.pem",
+    .keyFile = "path/to/key/file.pem",
+    .caFile = "path/to/trust/bundle/file.pem", // as a file, or in memory buffer in PEM format
+    .tls = true // required in server mode
+});
+```
+
+Specifying `certFile` and `keyFile` configures the certificate that will be used to communicate with TLS peers.
+
+On a client, this is only necessary for connecting to servers that require a client certificate.
+
+On a server, this is necessary for TLS support.
+
+Specifying `caFile` configures the trusted roots bundle file (in PEM format) that will be used to verify peer certificates.
+ - The special value of `SYSTEM` (the default) indicates that the system-configured trust bundle should be used; this is generally what you want when connecting to any publicly exposed API/server.
+ - The special value of `NONE` can be used to disable peer verification; this is only recommended to rule out certificate verification when testing connectivity.
+ - If the value contain the special value `-----BEGIN CERTIFICATE-----`, the value will be read from memory, and not from a file. This is convenient on platforms like Android where reading / writing to the file system can be challenging without proper permissions, or without knowing the location of a temp directory.
+
+For a client, specifying `caFile` can be used if connecting to a server that uses a self-signed cert, or when using a custom CA in an internal environment.
+
+For a server, specifying `caFile` implies that:
+1. You require clients to present a certificate
+1. It must be signed by one of the trusted roots in the file
+
+By default, a destination's hostname is always validated against the certificate that it presents. To accept certificates with any hostname, set `ix::SocketTLSOptions::disable_hostname_validation` to `true`.

docs/ws.md

@@ -0,0 +1,308 @@
+## General
+
+ws is a command line tool that should exercise most of the IXWebSocket code, and provide example code.
+
+```
+ws is a websocket tool
+Usage: ws [OPTIONS] SUBCOMMAND
+
+Options:
+  -h,--help                   Print this help message and exit
+
+Subcommands:
+  send                        Send a file
+  receive                     Receive a file
+  transfer                    Broadcasting server
+  connect                     Connect to a remote server
+  chat                        Group chat
+  echo_server                 Echo server
+  broadcast_server            Broadcasting server
+  ping                        Ping pong
+  curl                        HTTP Client
+  httpd                       HTTP server
+```
+
+## curl
+
+The curl subcommand try to be compatible with the curl syntax, to fetch http pages.
+
+Making a HEAD request with the -I parameter.
+
+```
+$ ws curl -I https://www.google.com/
+
+Accept-Ranges: none
+Alt-Svc: quic=":443"; ma=2592000; v="46,43",h3-Q048=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000
+Cache-Control: private, max-age=0
+Content-Type: text/html; charset=ISO-8859-1
+Date: Tue, 08 Oct 2019 21:36:57 GMT
+Expires: -1
+P3P: CP="This is not a P3P policy! See g.co/p3phelp for more info."
+Server: gws
+Set-Cookie: NID=188=ASwfz8GrXQrHCLqAz-AndLOMLcz0rC9yecnf3h0yXZxRL3rTufTU_GDDwERp7qQL7LZ_EB8gCRyPXGERyOSAgaqgnrkoTmvWrwFemRLMaOZ896GrHobi5fV7VLklnSG2w48Gj8xMlwxfP7Z-bX-xR9UZxep1tHM6UmFQdD_GkBE; expires=Wed, 08-Apr-2020 21:36:57 GMT; path=/; domain=.google.com; HttpOnly
+Transfer-Encoding: chunked
+Vary: Accept-Encoding
+X-Frame-Options: SAMEORIGIN
+X-XSS-Protection: 0
+Upload size: 143
+Download size: 0
+Status: 200
+```
+
+Making a POST request with the -F parameter.
+
+```
+$ ws curl -F foo=bar https://httpbin.org/post
+foo: bar
+Downloaded 438 bytes out of 438
+Access-Control-Allow-Credentials: true
+Access-Control-Allow-Origin: *
+Connection: keep-alive
+Content-Encoding:
+Content-Length: 438
+Content-Type: application/json
+Date: Tue, 08 Oct 2019 21:47:54 GMT
+Referrer-Policy: no-referrer-when-downgrade
+Server: nginx
+X-Content-Type-Options: nosniff
+X-Frame-Options: DENY
+X-XSS-Protection: 1; mode=block
+Upload size: 219
+Download size: 438
+Status: 200
+payload: {
+  "args": {},
+  "data": "",
+  "files": {},
+  "form": {
+    "foo": "bar"
+  },
+  "headers": {
+    "Accept": "*/*",
+    "Content-Length": "7",
+    "Content-Type": "application/x-www-form-urlencoded",
+    "Host": "httpbin.org",
+    "User-Agent": "ixwebsocket/7.0.0 macos ssl/OpenSSL OpenSSL 1.0.2q  20 Nov 2018 zlib 1.2.11"
+  },
+  "json": null,
+  "origin": "155.94.127.118, 155.94.127.118",
+  "url": "https://httpbin.org/post"
+}
+```
+
+Passing in a custom header with -H.
+
+```
+$ ws curl -F foo=bar -H 'my_custom_header: baz' https://httpbin.org/post
+my_custom_header:  baz
+foo: bar
+Downloaded 470 bytes out of 470
+Access-Control-Allow-Credentials: true
+Access-Control-Allow-Origin: *
+Connection: keep-alive
+Content-Encoding:
+Content-Length: 470
+Content-Type: application/json
+Date: Tue, 08 Oct 2019 21:50:25 GMT
+Referrer-Policy: no-referrer-when-downgrade
+Server: nginx
+X-Content-Type-Options: nosniff
+X-Frame-Options: DENY
+X-XSS-Protection: 1; mode=block
+Upload size: 243
+Download size: 470
+Status: 200
+payload: {
+  "args": {},
+  "data": "",
+  "files": {},
+  "form": {
+    "foo": "bar"
+  },
+  "headers": {
+    "Accept": "*/*",
+    "Content-Length": "7",
+    "Content-Type": "application/x-www-form-urlencoded",
+    "Host": "httpbin.org",
+    "My-Custom-Header": "baz",
+    "User-Agent": "ixwebsocket/7.0.0 macos ssl/OpenSSL OpenSSL 1.0.2q  20 Nov 2018 zlib 1.2.11"
+  },
+  "json": null,
+  "origin": "155.94.127.118, 155.94.127.118",
+  "url": "https://httpbin.org/post"
+}
+```
+
+## connect
+
+The connect command connects to a websocket endpoint, and starts an interactive prompt. Line editing, such as using the direction keys to fetch the last thing you tried to type) is provided. That command is pretty useful to try to send random data to an endpoint and verify that the service handles it with grace (such as sending invalid json).
+
+```
+ws connect wss://echo.websocket.org
+Type Ctrl-D to exit prompt...
+Connecting to url: wss://echo.websocket.org
+> ws_connect: connected
+Uri: /
+Handshake Headers:
+Connection: Upgrade
+Date: Tue, 08 Oct 2019 21:38:44 GMT
+Sec-WebSocket-Accept: 2j6LBScZveqrMx1W/GJkCWvZo3M=
+sec-websocket-extensions:
+Server: Kaazing Gateway
+Upgrade: websocket
+Received ping
+Received ping
+Received ping
+Hello world !
+> Received 13 bytes
+ws_connect: received message: Hello world !
+> Hello world !
+> Received 13 bytes
+ws_connect: received message: Hello world !
+```
+
+```
+ws connect 'ws://jeanserge.com/v2?appkey=_pubsub'
+Type Ctrl-D to exit prompt...
+Connecting to url: ws://jeanserge.com/v2?appkey=_pubsub
+> ws_connect: connected
+Uri: /v2?appkey=_pubsub
+Handshake Headers:
+Connection: Upgrade
+Date: Tue, 08 Oct 2019 21:45:28 GMT
+Sec-WebSocket-Accept: LYHmjh9Gsu/Yw7aumQqyPObOEV4=
+Sec-WebSocket-Extensions: permessage-deflate; server_max_window_bits=15; client_max_window_bits=15
+Server: Python/3.7 websockets/8.0.2
+Upgrade: websocket
+bababababababab
+> ws_connect: connection closed: code 1000 reason
+
+ws_connect: connected
+Uri: /v2?appkey=_pubsub
+Handshake Headers:
+Connection: Upgrade
+Date: Tue, 08 Oct 2019 21:45:44 GMT
+Sec-WebSocket-Accept: I1rqxdLgTU+opPi5/zKPBTuXdLw=
+Sec-WebSocket-Extensions: permessage-deflate; server_max_window_bits=15; client_max_window_bits=15
+Server: Python/3.7 websockets/8.0.2
+Upgrade: websocket
+```
+
+It is possible to pass custom HTTP header when doing the connection handshake,
+the remote server might process them to implement a simple authorization
+scheme.
+
+```
+src$ ws connect -H Authorization:supersecret ws://localhost:8008
+Type Ctrl-D to exit prompt...
+[2020-12-17 22:35:08.732] [info] Authorization: supersecret
+Connecting to url: ws://localhost:8008
+> [2020-12-17 22:35:08.736] [info] ws_connect: connected
+[2020-12-17 22:35:08.736] [info] Uri: /
+[2020-12-17 22:35:08.736] [info] Headers:
+[2020-12-17 22:35:08.736] [info] Connection: Upgrade
+[2020-12-17 22:35:08.736] [info] Sec-WebSocket-Accept: 2yaTFcdwn8KL6IzSMj2u6Le7KTg=
+[2020-12-17 22:35:08.736] [info] Sec-WebSocket-Extensions: permessage-deflate; server_max_window_bits=15; client_max_window_bits=15
+[2020-12-17 22:35:08.736] [info] Server: ixwebsocket/11.0.4 macos ssl/SecureTransport zlib 1.2.11
+[2020-12-17 22:35:08.736] [info] Upgrade: websocket
+[2020-12-17 22:35:08.736] [info] Received 25 bytes
+ws_connect: received message: Authorization suceeded!
+[2020-12-17 22:35:08.736] [info] Received pong ixwebsocket::heartbeat::30s::0
+hello
+> [2020-12-17 22:35:25.157] [info] Received 7 bytes
+ws_connect: received message: hello
+```
+
+If the wrong header is passed in, the server would close the connection with a custom close code (>4000, and <4999).
+
+```
+[2020-12-17 22:39:37.044] [info] Upgrade: websocket
+ws_connect: connection closed: code 4001 reason Permission denied
+```
+
+## echo server
+
+The ws echo server will respond what the client just sent him. If we use the
+simple --http_authorization_header we can enforce that client need to pass a
+special value in the Authorization header to connect.
+
+```
+$ ws echo_server --http_authorization_header supersecret
+[2020-12-17 22:35:06.192] [info] Listening on 127.0.0.1:8008
+[2020-12-17 22:35:08.735] [info] New connection
+[2020-12-17 22:35:08.735] [info] remote ip: 127.0.0.1
+[2020-12-17 22:35:08.735] [info] id: 0
+[2020-12-17 22:35:08.735] [info] Uri: /
+[2020-12-17 22:35:08.735] [info] Headers:
+[2020-12-17 22:35:08.735] [info] Authorization: supersecret
+[2020-12-17 22:35:08.735] [info] Connection: Upgrade
+[2020-12-17 22:35:08.735] [info] Host: localhost:8008
+[2020-12-17 22:35:08.735] [info] Sec-WebSocket-Extensions: permessage-deflate; server_max_window_bits=15; client_max_window_bits=15
+[2020-12-17 22:35:08.735] [info] Sec-WebSocket-Key: eFF2Gf25dC7eC15Ab1135G==
+[2020-12-17 22:35:08.735] [info] Sec-WebSocket-Version: 13
+[2020-12-17 22:35:08.735] [info] Upgrade: websocket
+[2020-12-17 22:35:08.735] [info] User-Agent: ixwebsocket/11.0.4 macos ssl/SecureTransport zlib 1.2.11
+[2020-12-17 22:35:25.157] [info] Received 7 bytes
+```
+
+## Websocket proxy
+
+```
+ws proxy_server --remote_host ws://127.0.0.1:9000 -v
+Listening on 127.0.0.1:8008
+```
+
+If you connect to ws://127.0.0.1:8008, the proxy will connect to ws://127.0.0.1:9000 and pass all traffic to this server.
+
+You can also use a more complex setup if you want to redirect to different websocket servers based on the hostname your client is trying to connect to. If you have multiple CNAME aliases that point to the same server.
+
+A JSON config file is used to express that mapping ; here connecting to echo.jeanserge.com will proxy the client to ws://localhost:8008 on the local machine (which actually runs ws echo_server), while connecting to bavarde.jeanserge.com will proxy the client to ws://localhost:5678 where a cobra python server is running. As a side note you will need a wildcard SSL certificate if you want to have SSL enabled on that machine.
+
+```
+echo.jeanserge.com=ws://localhost:8008
+bavarde.jeanserge.com=ws://localhost:5678
+```
+The --config_path option is required to instruct ws proxy_server to read that file.
+
+```
+ws proxy_server --config_path proxyConfig.json --port 8765
+```
+
+## File transfer
+
+```
+# Start transfer server, which is just a broadcast server at this point
+ws transfer # running on port 8080.
+
+# Start receiver first
+ws receive ws://localhost:8080
+
+# Then send a file. File will be received and written to disk by the receiver process
+ws send ws://localhost:8080 /file/to/path
+```
+
+## HTTP Client
+
+```
+$ ws curl --help
+HTTP Client
+Usage: ws curl [OPTIONS] url
+
+Positionals:
+  url TEXT REQUIRED           Connection url
+
+Options:
+  -h,--help                   Print this help message and exit
+  -d TEXT                     Form data
+  -F TEXT                     Form data
+  -H TEXT                     Header
+  --output TEXT               Output file
+  -I                          Send a HEAD request
+  -L                          Follow redirects
+  --max-redirects INT         Max Redirects
+  -v                          Verbose
+  -O                          Save output to disk
+  --compress                  Enable gzip compression
+  --connect-timeout INT       Connection timeout
+  --transfer-timeout INT      Transfer timeout
+```

examples/BroadcastingEchoServer.cpp

@@ -1,52 +0,0 @@
-#include "App.h"
-
-struct us_listen_socket_t *listen_socket;
-
-int main() {
-    /* ws->getUserData returns one of these */
-    struct PerSocketData {
-
-    };
-
-    /* Very simple WebSocket broadcasting echo server */
-    uWS::App().ws<PerSocketData>("/*", {
-        /* Settings */
-        .compression = uWS::SHARED_COMPRESSOR,
-        .maxPayloadLength = 16 * 1024 * 1024,
-        .idleTimeout = 10,
-        .maxBackpressure = 1 * 1024 * 1204,
-        /* Handlers */
-        .open = [](auto *ws, auto *req) {
-            /* Let's make every connection subscribe to the "broadcast" topic */
-            ws->subscribe("broadcast");
-        },
-        .message = [](auto *ws, std::string_view message, uWS::OpCode opCode) {
-            /* Exit gracefully if we get a closedown message (ASAN debug) */
-            if (message == "closedown") {
-               /* Bye bye */
-               us_listen_socket_close(0, listen_socket);
-               ws->close();
-            }
-
-            /* Simply broadcast every single message we get */
-            ws->publish("broadcast", message, opCode);
-        },
-        .drain = [](auto *ws) {
-            /* Check getBufferedAmount here */
-        },
-        .ping = [](auto *ws) {
-
-        },
-        .pong = [](auto *ws) {
-
-        },
-        .close = [](auto *ws, int code, std::string_view message) {
-            /* We automatically unsubscribe from any topic here */
-        }
-    }).listen(9001, [](auto *token) {
-        listen_socket = token;
-        if (token) {
-            std::cout << "Listening on port " << 9001 << std::endl;
-        }
-    }).run();
-}

examples/EchoServer.cpp

@@ -1,50 +0,0 @@
-/* We simply call the root header file "App.h", giving you uWS::App and uWS::SSLApp */
-#include "App.h"
-
-/* This is a simple WebSocket echo server example.
- * You may compile it with "WITH_OPENSSL=1 make" or with "make" */
-
-int main() {
-    /* ws->getUserData returns one of these */
-    struct PerSocketData {
-        /* Fill with user data */
-    };
-
-    /* Keep in mind that uWS::SSLApp({options}) is the same as uWS::App() when compiled without SSL support.
-     * You may swap to using uWS:App() if you don't need SSL */
-    uWS::SSLApp({
-        /* There are example certificates in uWebSockets.js repo */
-	    .key_file_name = "../misc/key.pem",
-	    .cert_file_name = "../misc/cert.pem",
-	    .passphrase = "1234"
-	}).ws<PerSocketData>("/*", {
-        /* Settings */
-        .compression = uWS::SHARED_COMPRESSOR,
-        .maxPayloadLength = 16 * 1024,
-        .idleTimeout = 10,
-        .maxBackpressure = 1 * 1024 * 1204,
-        /* Handlers */
-        .open = [](auto *ws, auto *req) {
-            /* Open event here, you may access ws->getUserData() which points to a PerSocketData struct */
-        },
-        .message = [](auto *ws, std::string_view message, uWS::OpCode opCode) {
-            ws->send(message, opCode);
-        },
-        .drain = [](auto *ws) {
-            /* Check ws->getBufferedAmount() here */
-        },
-        .ping = [](auto *ws) {
-            /* Not implemented yet */
-        },
-        .pong = [](auto *ws) {
-            /* Not implemented yet */
-        },
-        .close = [](auto *ws, int code, std::string_view message) {
-            /* You may access ws->getUserData() here */
-        }
-    }).listen(9001, [](auto *token) {
-        if (token) {
-            std::cout << "Listening on port " << 9001 << std::endl;
-        }
-    }).run();
-}

examples/EchoServerThreaded.cpp

@@ -1,57 +0,0 @@
-#include "App.h"
-#include <thread>
-#include <algorithm>
-
-int main() {
-    /* ws->getUserData returns one of these */
-    struct PerSocketData {
-
-    };
-
-    /* Simple echo websocket server, using multiple threads */
-    std::vector<std::thread *> threads(std::thread::hardware_concurrency());
-
-    std::transform(threads.begin(), threads.end(), threads.begin(), [](std::thread *t) {
-        return new std::thread([]() {
-
-            /* Very simple WebSocket echo server */
-            uWS::App().ws<PerSocketData>("/*", {
-                /* Settings */
-                .compression = uWS::SHARED_COMPRESSOR,
-                .maxPayloadLength = 16 * 1024,
-                .idleTimeout = 10,
-                .maxBackpressure = 1 * 1024 * 1204,
-                /* Handlers */
-                .open = [](auto *ws, auto *req) {
-
-                },
-                .message = [](auto *ws, std::string_view message, uWS::OpCode opCode) {
-                    ws->send(message, opCode);
-                },
-                .drain = [](auto *ws) {
-                    /* Check getBufferedAmount here */
-                },
-                .ping = [](auto *ws) {
-
-                },
-                .pong = [](auto *ws) {
-
-                },
-                .close = [](auto *ws, int code, std::string_view message) {
-
-                }
-            }).listen(9001, [](auto *token) {
-                if (token) {
-                    std::cout << "Thread " << std::this_thread::get_id() << " listening on port " << 9001 << std::endl;
-                } else {
-                    std::cout << "Thread " << std::this_thread::get_id() << " failed to listen on port 9001" << std::endl;
-                }
-            }).run();
-
-        });
-    });
-
-    std::for_each(threads.begin(), threads.end(), [](std::thread *t) {
-        t->join();
-    });
-}

examples/HelloWorld.cpp

@@ -1,20 +0,0 @@
-#include "App.h"
-
-/* Note that uWS::SSLApp({options}) is the same as uWS::App() when compiled without SSL support */
-
-int main() {
-	/* Overly simple hello world app */
-	uWS::SSLApp({
-	  .key_file_name = "../misc/key.pem",
-	  .cert_file_name = "../misc/cert.pem",
-	  .passphrase = "1234"
-	}).get("/*", [](auto *res, auto *req) {
-	    res->end("Hello world!");
-	}).listen(3000, [](auto *token) {
-	    if (token) {
-		std::cout << "Listening on port " << 3000 << std::endl;
-	    }
-	}).run();
-
-	std::cout << "Failed to listen on port 3000" << std::endl;
-}

examples/HelloWorldThreaded.cpp

@@ -1,28 +0,0 @@
-#include "App.h"
-#include <thread>
-#include <algorithm>
-
-int main() {
-    /* Overly simple hello world app, using multiple threads */
-    std::vector<std::thread *> threads(std::thread::hardware_concurrency());
-
-    std::transform(threads.begin(), threads.end(), threads.begin(), [](std::thread *t) {
-        return new std::thread([]() {
-
-            uWS::App().get("/*", [](auto *res, auto *req) {
-                res->end("Hello world!");
-            }).listen(3000, [](auto *token) {
-                if (token) {
-                    std::cout << "Thread " << std::this_thread::get_id() << " listening on port " << 3000 << std::endl;
-                } else {
-                    std::cout << "Thread " << std::this_thread::get_id() << " failed to listen on port 3000" << std::endl;
-                }
-            }).run();
-
-        });
-    });
-
-    std::for_each(threads.begin(), threads.end(), [](std::thread *t) {
-        t->join();
-    });
-}

examples/HttpServer.cpp

@@ -1,90 +0,0 @@
-/* This is a simple HTTP(S) web server much like Python's SimpleHTTPServer */
-
-#include <App.h>
-
-/* Helpers for this example */
-#include "helpers/AsyncFileReader.h"
-#include "helpers/AsyncFileStreamer.h"
-#include "helpers/Middleware.h"
-
-/* optparse */
-#define OPTPARSE_IMPLEMENTATION
-#include "helpers/optparse.h"
-
-int main(int argc, char **argv) {
-
-    int option;
-    struct optparse options;
-    optparse_init(&options, argv);
-
-    struct optparse_long longopts[] = {
-        {"port", 'p', OPTPARSE_REQUIRED},
-        {"help", 'h', OPTPARSE_NONE},
-        {"passphrase", 'a', OPTPARSE_REQUIRED},
-        {"key", 'k', OPTPARSE_REQUIRED},
-        {"cert", 'c', OPTPARSE_REQUIRED},
-        {"dh_params", 'd', OPTPARSE_REQUIRED},
-        {0}
-    };
-
-    int port = 3000;
-    struct us_socket_context_options_t ssl_options = {};
-
-    while ((option = optparse_long(&options, longopts, nullptr)) != -1) {
-        switch (option) {
-        case 'p':
-            port = atoi(options.optarg);
-            break;
-        case 'a':
-            ssl_options.passphrase = options.optarg;
-            break;
-        case 'c':
-            ssl_options.cert_file_name = options.optarg;
-            break;
-        case 'k':
-            ssl_options.key_file_name = options.optarg;
-            break;
-        case 'd':
-            ssl_options.dh_params_file_name = options.optarg;
-            break;
-        case 'h':
-        case '?':
-            fail:
-            std::cout << "Usage: " << argv[0] << " [--help] [--port <port>] [--key <ssl key>] [--cert <ssl cert>] [--passphrase <ssl key passphrase>] [--dh_params <ssl dh params file>] <public root>" << std::endl;
-            return 0;
-        }
-    }
-
-    char *root = optparse_arg(&options);
-    if (!root) {
-        goto fail;
-    }
-
-    AsyncFileStreamer asyncFileStreamer(root);
-
-    /* Either serve over HTTP or HTTPS */
-    struct us_socket_context_options_t empty_ssl_options = {};
-    if (memcmp(&ssl_options, &empty_ssl_options, sizeof(empty_ssl_options))) {
-        /* HTTPS */
-        uWS::SSLApp(ssl_options).get("/*", [&asyncFileStreamer](auto *res, auto *req) {
-            serveFile(res, req);
-            asyncFileStreamer.streamFile(res, req->getUrl());
-        }).listen(port, [port, root](auto *token) {
-            if (token) {
-                std::cout << "Serving " << root << " over HTTPS a " << port << std::endl;
-            }
-        }).run();
-    } else {
-        /* HTTP */
-        uWS::App().get("/*", [&asyncFileStreamer](auto *res, auto *req) {
-            serveFile(res, req);
-            asyncFileStreamer.streamFile(res, req->getUrl());
-        }).listen(port, [port, root](auto *token) {
-            if (token) {
-                std::cout << "Serving " << root << " over HTTP a " << port << std::endl;
-            }
-        }).run();
-    }
-
-    std::cout << "Failed to listen to port " << port << std::endl;
-}

examples/helpers/AsyncFileReader.h

@@ -1,130 +0,0 @@
-#include <map>
-#include <cstring>
-#include <fstream>
-#include <sstream>
-#include <iostream>
-#include <future>
-
-/* This is just a very simple and inefficient demo of async responses,
- * please do roll your own variant or use a database or Node.js's async
- * features instead of this really bad demo */
-struct AsyncFileReader {
-private:
-    /* The cache we have in memory for this file */
-    std::string cache;
-    int cacheOffset;
-    bool hasCache;
-
-    /* The pending async file read (yes we only support one pending read) */
-    std::function<void(std::string_view)> pendingReadCb;
-
-    int fileSize;
-    std::string fileName;
-    std::ifstream fin;
-    uWS::Loop *loop;
-
-public:
-    /* Construct a demo async. file reader for fileName */
-    AsyncFileReader(std::string fileName) : fileName(fileName) {
-        fin.open(fileName, std::ios::binary);
-
-        // get fileSize
-        fin.seekg(0, fin.end);
-        fileSize = fin.tellg();
-
-        //std::cout << "File size is: " << fileSize << std::endl;
-
-        // cache up 1 mb!
-        cache.resize(1024 * 1024);
-
-        //std::cout << "Caching 1 MB at offset = " << 0 << std::endl;
-        fin.seekg(0, fin.beg);
-        fin.read(cache.data(), cache.length());
-        cacheOffset = 0;
-        hasCache = true;
-
-        // get loop for thread
-
-        loop = uWS::Loop::get();
-    }
-
-    /* Returns any data already cached for this offset */
-    std::string_view peek(int offset) {
-        /* Did we hit the cache? */
-        if (hasCache && offset >= cacheOffset && ((offset - cacheOffset) < cache.length())) {
-            /* Cache hit */
-            //std::cout << "Cache hit!" << std::endl;
-
-            /*if (fileSize - offset < cache.length()) {
-                std::cout << "LESS THAN WHAT WE HAVE!" << std::endl;
-            }*/
-
-            int chunkSize = std::min<int>(fileSize - offset, cache.length() - offset + cacheOffset);
-
-            return std::string_view(cache.data() + offset - cacheOffset, chunkSize);
-        } else {
-            /* Cache miss */
-            //std::cout << "Cache miss!" << std::endl;
-            return std::string_view(nullptr, 0);
-        }
-    }
-
-    /* Asynchronously request more data at offset */
-    void request(int offset, std::function<void(std::string_view)> cb) {
-
-        // in this case, what do we do?
-        // we need to queue up this chunk request and callback!
-        // if queue is full, either block or close the connection via abort!
-        if (!hasCache) {
-            // already requesting a chunk!
-            std::cout << "ERROR: already requesting a chunk!" << std::endl;
-            return;
-        }
-
-        // disable cache
-        hasCache = false;
-
-        std::async(std::launch::async, [this, cb, offset]() {
-            //std::cout << "ASYNC Caching 1 MB at offset = " << offset << std::endl;
-
-
-
-            // den har stängts! öppna igen!
-            if (!fin.good()) {
-                fin.close();
-                //std::cout << "Reopening fin!" << std::endl;
-                fin.open(fileName, std::ios::binary);
-            }
-            fin.seekg(offset, fin.beg);
-            fin.read(cache.data(), cache.length());
-
-            cacheOffset = offset;
-
-            loop->defer([this, cb, offset]() {
-
-                int chunkSize = std::min<int>(cache.length(), fileSize - offset);
-
-                // båda dessa sker, wtf?
-                if (chunkSize == 0) {
-                    std::cout << "Zero size!?" << std::endl;
-                }
-
-                if (chunkSize != cache.length()) {
-                    std::cout << "LESS THAN A CACHE 1 MB!" << std::endl;
-                }
-
-                hasCache = true;
-                cb(std::string_view(cache.data(), chunkSize));
-            });
-        });
-    }
-
-    /* Abort any pending async. request */
-    void abort() {
-
-    }
-
-    int getFileSize() {
-        return fileSize;
-    }
-};

examples/helpers/AsyncFileStreamer.h

@@ -1,84 +0,0 @@
-#include <filesystem>
-
-struct AsyncFileStreamer {
-
-    std::map<std::string_view, AsyncFileReader *> asyncFileReaders;
-    std::string root;
-
-    AsyncFileStreamer(std::string root) : root(root) {
-        // for all files in this path, init the map of AsyncFileReaders
-        updateRootCache();
-    }
-
-    void updateRootCache() {
-        // todo: if the root folder changes, we want to reload the cache
-        for(auto &p : std::filesystem::recursive_directory_iterator(root)) {
-            std::string url = p.path().string().substr(root.length());
-            if (url == "/index.html") {
-                url = "/";
-            }
-
-            char *key = new char[url.length()];
-            memcpy(key, url.data(), url.length());
-            asyncFileReaders[std::string_view(key, url.length())] = new AsyncFileReader(p.path().string());
-        }
-    }
-
-    template <bool SSL>
-    void streamFile(uWS::HttpResponse<SSL> *res, std::string_view url) {
-        auto it = asyncFileReaders.find(url);
-        if (it == asyncFileReaders.end()) {
-            std::cout << "Did not find file: " << url << std::endl;
-        } else {
-            streamFile(res, it->second);
-        }
-    }
-
-    template <bool SSL>
-    static void streamFile(uWS::HttpResponse<SSL> *res, AsyncFileReader *asyncFileReader) {
-        /* Peek from cache */
-        std::string_view chunk = asyncFileReader->peek(res->getWriteOffset());
-        if (!chunk.length() || res->tryEnd(chunk, asyncFileReader->getFileSize()).first) {
-            /* Request new chunk */
-            // todo: we need to abort this callback if peer closed!
-            // this also means Loop::defer needs to support aborting (functions should embedd an atomic boolean abort or something)
-
-            // Loop::defer(f) -> integer
-            // Loop::abort(integer)
-
-            // hmm? no?
-
-            // us_socket_up_ref eftersom vi delar ägandeskapet
-
-            if (chunk.length() < asyncFileReader->getFileSize()) {
-                asyncFileReader->request(res->getWriteOffset(), [res, asyncFileReader](std::string_view chunk) {
-                    // check if we were closed in the mean time
-                    //if (us_socket_is_closed()) {
-                        // free it here
-                        //return;
-                    //}
-
-                    /* We were aborted for some reason */
-                    if (!chunk.length()) {
-                        // todo: make sure to check for is_closed internally after all callbacks!
-                        res->close();
-                    } else {
-                        AsyncFileStreamer::streamFile(res, asyncFileReader);
-                    }
-                });
-            }
-        } else {
-            /* We failed writing everything, so let's continue when we can */
-            res->onWritable([res, asyncFileReader](int offset) {
-
-                // här kan skiten avbrytas!
-
-                AsyncFileStreamer::streamFile(res, asyncFileReader);
-                // todo: I don't really know what this is supposed to mean?
-                return false;
-            })->onAborted([]() {
-                std::cout << "ABORTED!" << std::endl;
-            });
-        }
-    }
-};

examples/helpers/Middleware.h

@@ -1,19 +0,0 @@
-/* Middleware to fill out content-type */
-inline bool hasExt(std::string_view file, std::string_view ext) {
-    if (ext.size() > file.size()) {
-        return false;
-    }
-    return std::equal(ext.rbegin(), ext.rend(), file.rbegin());
-}
-
-/* This should be a filter / middleware like app.use(handler) */
-template <bool SSL>
-uWS::HttpResponse<SSL> *serveFile(uWS::HttpResponse<SSL> *res, uWS::HttpRequest *req) {
-    res->writeStatus(uWS::HTTP_200_OK);
-
-    if (hasExt(req->getUrl(), ".svg")) {
-        res->writeHeader("Content-Type", "image/svg+xml");
-    }
-
-    return res;
-}

examples/helpers/optparse.h

@@ -1,407 +0,0 @@
-/* Nicked from third-party https://github.com/skeeto/optparse 2018-09-24 */
-/* µWebSockets is not the origin of this software file */
-/* ------------------------------------------------------ */
-
-/* Optparse --- portable, reentrant, embeddable, getopt-like option parser
- *
- * This is free and unencumbered software released into the public domain.
- *
- * To get the implementation, define OPTPARSE_IMPLEMENTATION.
- * Optionally define OPTPARSE_API to control the API's visibility
- * and/or linkage (static, __attribute__, __declspec).
- *
- * The POSIX getopt() option parser has three fatal flaws. These flaws
- * are solved by Optparse.
- *
- * 1) Parser state is stored entirely in global variables, some of
- * which are static and inaccessible. This means only one thread can
- * use getopt(). It also means it's not possible to recursively parse
- * nested sub-arguments while in the middle of argument parsing.
- * Optparse fixes this by storing all state on a local struct.
- *
- * 2) The POSIX standard provides no way to properly reset the parser.
- * This means for portable code that getopt() is only good for one
- * run, over one argv with one option string. It also means subcommand
- * options cannot be processed with getopt(). Most implementations
- * provide a method to reset the parser, but it's not portable.
- * Optparse provides an optparse_arg() function for stepping over
- * subcommands and continuing parsing of options with another option
- * string. The Optparse struct itself can be passed around to
- * subcommand handlers for additional subcommand option parsing. A
- * full reset can be achieved by with an additional optparse_init().
- *
- * 3) Error messages are printed to stderr. This can be disabled with
- * opterr, but the messages themselves are still inaccessible.
- * Optparse solves this by writing an error message in its errmsg
- * field. The downside to Optparse is that this error message will
- * always be in English rather than the current locale.
- *
- * Optparse should be familiar with anyone accustomed to getopt(), and
- * it could be a nearly drop-in replacement. The option string is the
- * same and the fields have the same names as the getopt() global
- * variables (optarg, optind, optopt).
- *
- * Optparse also supports GNU-style long options with optparse_long().
- * The interface is slightly different and simpler than getopt_long().
- *
- * By default, argv is permuted as it is parsed, moving non-option
- * arguments to the end. This can be disabled by setting the `permute`
- * field to 0 after initialization.
- */
-#ifndef OPTPARSE_H
-#define OPTPARSE_H
-
-#ifndef OPTPARSE_API
-#  define OPTPARSE_API
-#endif
-
-struct optparse {
-    char **argv;
-    int permute;
-    int optind;
-    int optopt;
-    char *optarg;
-    char errmsg[64];
-    int subopt;
-};
-
-enum optparse_argtype {
-    OPTPARSE_NONE,
-    OPTPARSE_REQUIRED,
-    OPTPARSE_OPTIONAL
-};
-
-struct optparse_long {
-    const char *longname;
-    int shortname;
-    enum optparse_argtype argtype;
-};
-
-/**
- * Initializes the parser state.
- */
-OPTPARSE_API
-void optparse_init(struct optparse *options, char **argv);
-
-/**
- * Read the next option in the argv array.
- * @param optstring a getopt()-formatted option string.
- * @return the next option character, -1 for done, or '?' for error
- *
- * Just like getopt(), a character followed by no colons means no
- * argument. One colon means the option has a required argument. Two
- * colons means the option takes an optional argument.
- */
-OPTPARSE_API
-int optparse(struct optparse *options, const char *optstring);
-
-/**
- * Handles GNU-style long options in addition to getopt() options.
- * This works a lot like GNU's getopt_long(). The last option in
- * longopts must be all zeros, marking the end of the array. The
- * longindex argument may be NULL.
- */
-OPTPARSE_API
-int optparse_long(struct optparse *options,
-                  const struct optparse_long *longopts,
-                  int *longindex);
-
-/**
- * Used for stepping over non-option arguments.
- * @return the next non-option argument, or NULL for no more arguments
- *
- * Argument parsing can continue with optparse() after using this
- * function. That would be used to parse the options for the
- * subcommand returned by optparse_arg(). This function allows you to
- * ignore the value of optind.
- */
-OPTPARSE_API
-char *optparse_arg(struct optparse *options);
-
-/* Implementation */
-#ifdef OPTPARSE_IMPLEMENTATION
-
-#define OPTPARSE_MSG_INVALID "invalid option"
-#define OPTPARSE_MSG_MISSING "option requires an argument"
-#define OPTPARSE_MSG_TOOMANY "option takes no arguments"
-
-static int
-optparse_error(struct optparse *options, const char *msg, const char *data)
-{
-    unsigned p = 0;
-    const char *sep = " -- '";
-    while (*msg)
-        options->errmsg[p++] = *msg++;
-    while (*sep)
-        options->errmsg[p++] = *sep++;
-    while (p < sizeof(options->errmsg) - 2 && *data)
-        options->errmsg[p++] = *data++;
-    options->errmsg[p++] = '\'';
-    options->errmsg[p++] = '\0';
-    return '?';
-}
-
-OPTPARSE_API
-void
-optparse_init(struct optparse *options, char **argv)
-{
-    options->argv = argv;
-    options->permute = 1;
-    options->optind = 1;
-    options->subopt = 0;
-    options->optarg = 0;
-    options->errmsg[0] = '\0';
-}
-
-static int
-optparse_is_dashdash(const char *arg)
-{
-    return arg != 0 && arg[0] == '-' && arg[1] == '-' && arg[2] == '\0';
-}
-
-static int
-optparse_is_shortopt(const char *arg)
-{
-    return arg != 0 && arg[0] == '-' && arg[1] != '-' && arg[1] != '\0';
-}
-
-static int
-optparse_is_longopt(const char *arg)
-{
-    return arg != 0 && arg[0] == '-' && arg[1] == '-' && arg[2] != '\0';
-}
-
-static void
-optparse_permute(struct optparse *options, int index)
-{
-    char *nonoption = options->argv[index];
-    int i;
-    for (i = index; i < options->optind - 1; i++)
-        options->argv[i] = options->argv[i + 1];
-    options->argv[options->optind - 1] = nonoption;
-}
-
-static int
-optparse_argtype(const char *optstring, char c)
-{
-    int count = OPTPARSE_NONE;
-    if (c == ':')
-        return -1;
-    for (; *optstring && c != *optstring; optstring++);
-    if (!*optstring)
-        return -1;
-    if (optstring[1] == ':')
-        count += optstring[2] == ':' ? 2 : 1;
-    return count;
-}
-
-OPTPARSE_API
-int
-optparse(struct optparse *options, const char *optstring)
-{
-    int type;
-    char *next;
-    char *option = options->argv[options->optind];
-    options->errmsg[0] = '\0';
-    options->optopt = 0;
-    options->optarg = 0;
-    if (option == 0) {
-        return -1;
-    } else if (optparse_is_dashdash(option)) {
-        options->optind++; /* consume "--" */
-        return -1;
-    } else if (!optparse_is_shortopt(option)) {
-        if (options->permute) {
-            int index = options->optind++;
-            int r = optparse(options, optstring);
-            optparse_permute(options, index);
-            options->optind--;
-            return r;
-        } else {
-            return -1;
-        }
-    }
-    option += options->subopt + 1;
-    options->optopt = option[0];
-    type = optparse_argtype(optstring, option[0]);
-    next = options->argv[options->optind + 1];
-    switch (type) {
-    case -1: {
-        char str[2] = {0, 0};
-        str[0] = option[0];
-        options->optind++;
-        return optparse_error(options, OPTPARSE_MSG_INVALID, str);
-    }
-    case OPTPARSE_NONE:
-        if (option[1]) {
-            options->subopt++;
-        } else {
-            options->subopt = 0;
-            options->optind++;
-        }
-        return option[0];
-    case OPTPARSE_REQUIRED:
-        options->subopt = 0;
-        options->optind++;
-        if (option[1]) {
-            options->optarg = option + 1;
-        } else if (next != 0) {
-            options->optarg = next;
-            options->optind++;
-        } else {
-            char str[2] = {0, 0};
-            str[0] = option[0];
-            options->optarg = 0;
-            return optparse_error(options, OPTPARSE_MSG_MISSING, str);
-        }
-        return option[0];
-    case OPTPARSE_OPTIONAL:
-        options->subopt = 0;
-        options->optind++;
-        if (option[1])
-            options->optarg = option + 1;
-        else
-            options->optarg = 0;
-        return option[0];
-    }
-    return 0;
-}
-
-OPTPARSE_API
-char *
-optparse_arg(struct optparse *options)
-{
-    char *option = options->argv[options->optind];
-    options->subopt = 0;
-    if (option != 0)
-        options->optind++;
-    return option;
-}
-
-static int
-optparse_longopts_end(const struct optparse_long *longopts, int i)
-{
-    return !longopts[i].longname && !longopts[i].shortname;
-}
-
-static void
-optparse_from_long(const struct optparse_long *longopts, char *optstring)
-{
-    char *p = optstring;
-    int i;
-    for (i = 0; !optparse_longopts_end(longopts, i); i++) {
-        if (longopts[i].shortname) {
-            int a;
-            *p++ = longopts[i].shortname;
-            for (a = 0; a < (int)longopts[i].argtype; a++)
-                *p++ = ':';
-        }
-    }
-    *p = '\0';
-}
-
-/* Unlike strcmp(), handles options containing "=". */
-static int
-optparse_longopts_match(const char *longname, const char *option)
-{
-    const char *a = option, *n = longname;
-    if (longname == 0)
-        return 0;
-    for (; *a && *n && *a != '='; a++, n++)
-        if (*a != *n)
-            return 0;
-    return *n == '\0' && (*a == '\0' || *a == '=');
-}
-
-/* Return the part after "=", or NULL. */
-static char *
-optparse_longopts_arg(char *option)
-{
-    for (; *option && *option != '='; option++);
-    if (*option == '=')
-        return option + 1;
-    else
-        return 0;
-}
-
-static int
-optparse_long_fallback(struct optparse *options,
-                       const struct optparse_long *longopts,
-                       int *longindex)
-{
-    int result;
-    char optstring[96 * 3 + 1]; /* 96 ASCII printable characters */
-    optparse_from_long(longopts, optstring);
-    result = optparse(options, optstring);
-    if (longindex != 0) {
-        *longindex = -1;
-        if (result != -1) {
-            int i;
-            for (i = 0; !optparse_longopts_end(longopts, i); i++)
-                if (longopts[i].shortname == options->optopt)
-                    *longindex = i;
-        }
-    }
-    return result;
-}
-
-OPTPARSE_API
-int
-optparse_long(struct optparse *options,
-              const struct optparse_long *longopts,
-              int *longindex)
-{
-    int i;
-    char *option = options->argv[options->optind];
-    if (option == 0) {
-        return -1;
-    } else if (optparse_is_dashdash(option)) {
-        options->optind++; /* consume "--" */
-        return -1;
-    } else if (optparse_is_shortopt(option)) {
-        return optparse_long_fallback(options, longopts, longindex);
-    } else if (!optparse_is_longopt(option)) {
-        if (options->permute) {
-            int index = options->optind++;
-            int r = optparse_long(options, longopts, longindex);
-            optparse_permute(options, index);
-            options->optind--;
-            return r;
-        } else {
-            return -1;
-        }
-    }
-
-    /* Parse as long option. */
-    options->errmsg[0] = '\0';
-    options->optopt = 0;
-    options->optarg = 0;
-    option += 2; /* skip "--" */
-    options->optind++;
-    for (i = 0; !optparse_longopts_end(longopts, i); i++) {
-        const char *name = longopts[i].longname;
-        if (optparse_longopts_match(name, option)) {
-            char *arg;
-            if (longindex)
-                *longindex = i;
-            options->optopt = longopts[i].shortname;
-            arg = optparse_longopts_arg(option);
-            if (longopts[i].argtype == OPTPARSE_NONE && arg != 0) {
-                return optparse_error(options, OPTPARSE_MSG_TOOMANY, name);
-            } if (arg != 0) {
-                options->optarg = arg;
-            } else if (longopts[i].argtype == OPTPARSE_REQUIRED) {
-                options->optarg = options->argv[options->optind];
-                if (options->optarg == 0)
-                    return optparse_error(options, OPTPARSE_MSG_MISSING, name);
-                else
-                    options->optind++;
-            }
-            return options->optopt;
-        }
-    }
-    return optparse_error(options, OPTPARSE_MSG_INVALID, option);
-}
-
-#endif /* OPTPARSE_IMPLEMENTATION */
-#endif /* OPTPARSE_H */

fuzzing/Extensions.cpp

@@ -1,39 +0,0 @@
-/* This is a fuzz test of the websocket extensions parser */
-
-#define WIN32_EXPORT
-
-#include <cstdio>
-#include <string>
-
-/* We test the websocket extensions parser */
-#include "../src/WebSocketExtensions.h"
-
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
-
-    {
-        uWS::ExtensionsNegotiator<true> extensionsNegotiator(uWS::Options::PERMESSAGE_DEFLATE);
-        extensionsNegotiator.readOffer({(char *) data, size});
-
-        extensionsNegotiator.generateOffer();
-        extensionsNegotiator.getNegotiatedOptions();
-    }
-
-    {
-        uWS::ExtensionsNegotiator<true> extensionsNegotiator(uWS::Options::NO_OPTIONS);
-        extensionsNegotiator.readOffer({(char *) data, size});
-
-        extensionsNegotiator.generateOffer();
-        extensionsNegotiator.getNegotiatedOptions();
-    }
-
-    {
-        uWS::ExtensionsNegotiator<true> extensionsNegotiator(uWS::Options::CLIENT_NO_CONTEXT_TAKEOVER);
-        extensionsNegotiator.readOffer({(char *) data, size});
-
-        extensionsNegotiator.generateOffer();
-        extensionsNegotiator.getNegotiatedOptions();
-    }
-
-    return 0;
-}
-

fuzzing/Handshake.cpp

@@ -1,20 +0,0 @@
-/* This is a fuzz test of the websocket handshake generator */
-
-#define WIN32_EXPORT
-
-#include <cstdio>
-#include <string>
-
-/* We test the websocket handshake generator */
-#include "../src/WebSocketHandshake.h"
-
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
-
-    char output[28];
-    if (size >= 24) {
-        uWS::WebSocketHandshake::generate((char *) data, output);
-    }
-
-    return 0;
-}
-

fuzzing/Http.cpp

@@ -1,124 +0,0 @@
-/* This is a fuzz test of the http parser */
-
-#define WIN32_EXPORT
-
-#include "helpers.h"
-
-/* We test the websocket parser */
-#include "../src/HttpParser.h"
-
-/* And the router */
-#include "../src/HttpRouter.h"
-
-struct StaticData {
-
-    struct RouterData {
-
-    };
-
-    uWS::HttpRouter<RouterData> router;
-
-    StaticData() {
-
-        router.add({"get"}, "/:hello/:hi", [](auto *h) mutable {
-            auto [paramsTop, params] = h->getParameters();
-
-            /* Something is horribly wrong */
-            if (paramsTop != 1 || !params[0].length() || !params[1].length()) {
-                exit(-1);
-            }
-
-            /* This route did handle it */
-            return true;
-        });
-
-        router.add({"post"}, "/:hello/:hi/*", [](auto *h) mutable {
-            auto [paramsTop, params] = h->getParameters();
-
-            /* Something is horribly wrong */
-            if (paramsTop != 1 || !params[0].length() || !params[1].length()) {
-                exit(-1);
-            }
-
-            /* This route did handle it */
-            return true;
-        });
-
-        router.add({"get"}, "/*", [](auto *h) mutable {
-            auto [paramsTop, params] = h->getParameters();
-
-            /* Something is horribly wrong */
-            if (paramsTop != -1) {
-                exit(-1);
-            }
-
-            /* This route did not handle it */
-            return false;
-        });
-
-        router.add({"get"}, "/hi", [](auto *h) mutable {
-            auto [paramsTop, params] = h->getParameters();
-
-            /* Something is horribly wrong */
-            if (paramsTop != -1) {
-                exit(-1);
-            }
-
-            /* This route did handle it */
-            return true;
-        });
-    }
-} staticData;
-
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
-    /* Create parser */
-    uWS::HttpParser httpParser;
-    /* User data */
-    void *user = (void *) 13;
-
-    /* Iterate the padded fuzz as chunks */
-    makeChunked(makePadded(data, size), size, [&httpParser, user](const uint8_t *data, size_t size) {
-        /* We need at least 1 byte post padding */
-        if (size) {
-            size--;
-        } else {
-            /* We might be given zero length chunks */
-            return;
-        }
-        
-        /* Parse it */
-        httpParser.consumePostPadded((char *) data, size, user, [](void *s, uWS::HttpRequest *httpRequest) -> void * {
-
-            readBytes(httpRequest->getHeader(httpRequest->getUrl()));
-            readBytes(httpRequest->getMethod());
-            readBytes(httpRequest->getQuery());
-
-            /* Route the method and URL in two passes */
-            staticData.router.getUserData() = {};
-            if (!staticData.router.route(httpRequest->getMethod(), httpRequest->getUrl())) {
-                /* It was not handled */
-                return nullptr;
-            }
-
-            for (auto p : *httpRequest) {
-
-            }
-
-            /* Return ok */
-            return s;
-
-        }, [](void *user, std::string_view data, bool fin) -> void * {
-
-            /* Return ok */
-            return user;
-
-        }, [](void *user) {
-
-            /* Return break */
-            return nullptr;
-        });
-    });
-
-    return 0;
-}
-

fuzzing/Makefile

@@ -1,21 +0,0 @@
-# You can select which sanitizer to use by setting this
-SANITIZER ?= address
-# These are set by OSS-Fuzz, we default to AddressSanitizer
-CXXFLAGS ?= -DLIBUS_NO_SSL -fsanitize=$(SANITIZER),fuzzer
-CFLAGS ?= -DLIBUS_NO_SSL
-OUT ?= .
-
-oss-fuzz:
-# "Unit tests"
-	$(CXX) $(CXXFLAGS) -std=c++17 -O3 WebSocket.cpp -o $(OUT)/WebSocket $(LIB_FUZZING_ENGINE)
-	$(CXX) $(CXXFLAGS) -std=c++17 -O3 Http.cpp -o $(OUT)/Http $(LIB_FUZZING_ENGINE)
-	$(CXX) $(CXXFLAGS) -std=c++17 -O3 PerMessageDeflate.cpp -o $(OUT)/PerMessageDeflate $(LIB_FUZZING_ENGINE) -lz
-# "Integration tests"
-	$(CC) $(CFLAGS) -DLIBUS_NO_SSL -c -O3 uSocketsMock.c
-	$(CXX) $(CXXFLAGS) -std=c++17 -O3 -DLIBUS_NO_SSL -I../src -I../uSockets/src MockedHelloWorld.cpp uSocketsMock.o -lz -o $(OUT)/MockedHelloWorld $(LIB_FUZZING_ENGINE)
-	$(CXX) $(CXXFLAGS) -std=c++17 -O3 -DLIBUS_NO_SSL -I../src -I../uSockets/src MockedEchoServer.cpp uSocketsMock.o -lz -o $(OUT)/MockedEchoServer $(LIB_FUZZING_ENGINE)
-
-broken:
-# Too small tests, failing coverage test
-	$(CXX) $(CXXFLAGS) -std=c++17 -O3 Extensions.cpp -o $(OUT)/Extensions $(LIB_FUZZING_ENGINE)
-	$(CXX) $(CXXFLAGS) -std=c++17 -O3 Handshake.cpp -o $(OUT)/Handshake $(LIB_FUZZING_ENGINE)

fuzzing/MockedEchoServer.cpp

@@ -1,75 +0,0 @@
-#include "App.h"
-
-#include "helpers.h"
-
-/* This function pushes data to the uSockets mock */
-extern "C" void us_loop_read_mocked_data(struct us_loop *loop, char *data, unsigned int size);
-
-uWS::TemplatedApp<false> *app;
-us_listen_socket_t *listenSocket;
-
-extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv) {
-
-    /* ws->getUserData returns one of these */
-    struct PerSocketData {
-        int nothing;
-    };
-
-    /* Very simple WebSocket echo server */
-    app = new uWS::TemplatedApp<false>(uWS::App().ws<PerSocketData>("/*", {
-        /* Settings */
-        .compression = uWS::SHARED_COMPRESSOR,
-        /* We want this to be low so that we can hit it, yet bigger than 256 */
-        .maxPayloadLength = 300,
-        .idleTimeout = 10,
-        /* Handlers */
-        .open = [](auto *ws, auto *req) {
-            if (req->getHeader("close_me").length()) {
-                ws->close();
-            } else if (req->getHeader("end_me").length()) {
-                ws->end(1006);
-            }
-        },
-        .message = [](auto *ws, std::string_view message, uWS::OpCode opCode) {
-            if (message.length() > 300) {
-                /* Inform the sanitizer of the fault */
-                fprintf(stderr, "Too long message passed\n");
-                free((void *) -1);
-            }
-
-            if (message.length() && message[0] == 'C') {
-                ws->close();
-            } else if (message.length() && message[0] == 'E') {
-                ws->end(1006);
-            } else {
-                ws->send(message, opCode, true);
-            }
-        },
-        .drain = [](auto *ws) {
-            /* Check getBufferedAmount here */
-        },
-        .ping = [](auto *ws) {
-
-        },
-        .pong = [](auto *ws) {
-
-        },
-        .close = [](auto *ws, int code, std::string_view message) {
-
-        }
-    }).listen(9001, [](us_listen_socket_t *listenSocket) {
-        if (listenSocket) {
-            std::cout << "Listening on port " << 9001 << std::endl;
-            ::listenSocket = listenSocket;
-        }
-    }));
-
-    return 0;
-}
-
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
-
-    us_loop_read_mocked_data((struct us_loop *) uWS::Loop::get(), (char *) makePadded(data, size), size);
-
-    return 0;
-}

fuzzing/MockedHelloWorld.cpp

@@ -1,47 +0,0 @@
-#include "App.h"
-
-#include "helpers.h"
-
-/* This function pushes data to the uSockets mock */
-extern "C" void us_loop_read_mocked_data(struct us_loop *loop, char *data, unsigned int size);
-
-uWS::TemplatedApp<false> *app;
-us_listen_socket_t *listenSocket;
-
-extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv) {
-
-    app = new uWS::TemplatedApp<false>(uWS::App().get("/*", [](auto *res, auto *req) {
-        if (req->getHeader("use_write").length()) {
-            res->writeStatus("200 OK")->writeHeader("write", "true")->write("Hello");
-            res->write(" world!");
-            res->end();
-        } else if (req->getQuery().length()) {
-            res->close();
-        } else {
-            res->end("Hello world!");
-        }
-    })/*.post("/*", [](auto *res, auto *req) {
-        res->onAborted([]() {
-
-        });
-        res->onData([res](std::string_view chunk, bool isEnd) {
-            if (isEnd) {
-                res->end(chunk);
-            }
-        });
-    })*/.listen(9001, [](us_listen_socket_t *listenSocket) {
-        if (listenSocket) {
-            std::cout << "Listening on port " << 9001 << std::endl;
-            ::listenSocket = listenSocket;
-        }
-    }));
-
-    return 0;
-}
-
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
-
-    us_loop_read_mocked_data((struct us_loop *) uWS::Loop::get(), (char *) makePadded(data, size), size);
-
-    return 0;
-}

fuzzing/PerMessageDeflate.cpp

@@ -1,38 +0,0 @@
-/* This is a fuzz test of the permessage-deflate module */
-
-#define WIN32_EXPORT
-
-#include <cstdio>
-#include <string>
-
-/* We test the permessage deflate module */
-#include "../src/PerMessageDeflate.h"
-
-#include "helpers.h"
-
-struct StaticData {
-    uWS::ZlibContext zlibContext;
-
-    uWS::InflationStream inflationStream;
-    uWS::DeflationStream deflationStream;
-} staticData;
-
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
-
-    /* Why is this padded? */
-    makeChunked(makePadded(data, size), size, [](const uint8_t *data, size_t size) {
-        std::string_view inflation = staticData.inflationStream.inflate(&staticData.zlibContext, std::string_view((char *) data, size), 256);
-        if (inflation.length() > 256) {
-            /* Cause ASAN to freak out */
-            delete (int *) (void *) 1;
-        }
-    });
-
-    makeChunked(makePadded(data, size), size, [](const uint8_t *data, size_t size) {
-        /* Always reset */
-        staticData.deflationStream.deflate(&staticData.zlibContext, std::string_view((char *) data, size), true);
-    });
-
-    return 0;
-}
-

fuzzing/README.md

@@ -1,29 +0,0 @@
-# Fuzz-testing of various parsers and mocked examples
-
-A secure web server must be capable of receiving mass amount of malicious input without misbehaving or performing illegal actions, such as stepping outside of a memory block or otherwise spilling the beans.
-
-### Continuous fuzzing under various sanitizers is done as part of the [Google OSS-Fuzz](https://github.com/google/oss-fuzz#oss-fuzz---continuous-fuzzing-for-open-source-software) project:
-* UndefinedBehaviorSanitizer
-* AddressSanitizer
-* MemorySanitizer
-
-### Currently the following parts are individually fuzzed:
-
-* WebSocket handshake generator
-* WebSocket message parser
-* WebSocket extensions parser & negotiator
-* WebSocket permessage-deflate compression/inflation helper
-* Http parser
-* Http method/url router
-
-### While entire (mocked) examples are fuzzed:
-
-* HelloWorld
-* EchoServer
-
-No defects or issues are left unfixed, covered up or otherwise neglected. In fact we **cannot** cover up security issues as OSS-Fuzz automatically and publicly reports security issues as they happen.
-
-Currently we are at ~80% total fuzz coverage and OSS-Fuzz is reporting **zero** issues whatsoever. The goal is to approach 90% total coverage.
-
-### Security awards
-Google have sent us thousands of USD for the integration with OSS-Fuzz - we continue working on bettering the testing with every new release.

fuzzing/WebSocket.cpp

@@ -1,59 +0,0 @@
-/* This is a fuzz test of the websocket parser */
-
-#define WIN32_EXPORT
-
-#include "helpers.h"
-
-/* We test the websocket parser */
-#include "../src/WebSocketProtocol.h"
-
-struct Impl {
-    static bool refusePayloadLength(uint64_t length, uWS::WebSocketState<true> *wState, void *s) {
-
-        /* We need a limit */
-        if (length > 16000) {
-            return true;
-        }
-
-        /* Return ok */
-        return false;
-    }
-
-    static bool setCompressed(uWS::WebSocketState<true> *wState, void *s) {
-        /* We support it */
-        return true;
-    }
-
-    static void forceClose(uWS::WebSocketState<true> *wState, void *s) {
-
-    }
-
-    static bool handleFragment(char *data, size_t length, unsigned int remainingBytes, int opCode, bool fin, uWS::WebSocketState<true> *webSocketState, void *s) {
-
-        if (opCode == uWS::TEXT) {
-            if (!uWS::protocol::isValidUtf8((unsigned char *)data, length)) {
-                /* Return break */
-                return true;
-            }
-        } else if (opCode == uWS::CLOSE) {
-            uWS::protocol::parseClosePayload((char *)data, length);
-        }
-
-        /* Return ok */
-        return false;
-    }
-};
-
-extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
-
-    /* Create the parser state */
-    uWS::WebSocketState<true> state;
-
-    makeChunked(makePadded(data, size), size, [&state](const uint8_t *data, size_t size) {
-        /* Parse it */
-        uWS::WebSocketProtocol<true, Impl>::consume((char *) data, size, &state, nullptr);
-    });
-
-    return 0;
-}
-

fuzzing/helpers.h

@@ -1,51 +0,0 @@
-#ifndef HELPERS_H
-#define HELPERS_H
-
-/* Common helpers for fuzzing */
-
-#include <functional>
-#include <string_view>
-#include <cstring>
-
-/* We use this to pad the fuzz */
-static inline const uint8_t *makePadded(const uint8_t *data, size_t size) {
-    static int paddedLength = 512 * 1024;
-    static char *padded = new char[128 + paddedLength + 128];
-
-    /* Increase landing area if required */
-    if (paddedLength < size) {
-        delete [] padded;
-        paddedLength = size;
-        padded = new char [128 + paddedLength + 128];
-    }
-
-    memcpy(padded + 128, data, size);
-
-    return (uint8_t *) padded + 128;
-}
-
-/* Splits the fuzz data in one or many chunks */
-static inline void makeChunked(const uint8_t *data, size_t size, std::function<void(const uint8_t *data, size_t size)> cb) {
-    /* First byte determines chunk size; 0 is all that remains, 1-255 is small chunk */
-    for (int i = 0; i < size; ) {
-        unsigned int chunkSize = data[i++];
-        if (!chunkSize) {
-            chunkSize = size - i;
-        } else {
-            chunkSize = std::min<int>(chunkSize, size - i);
-        }
-
-        cb(data + i, chunkSize);
-        i += chunkSize;
-    }
-}
-
-/* Reads all bytes to trigger invalid reads */
-static inline void readBytes(std::string_view s) {
-    volatile int sum = 0;
-    for (int i = 0; i < s.size(); i++) {
-        sum += s[i];
-    }
-}
-
-#endif

fuzzing/uSocketsMock.c

@@ -1,285 +0,0 @@
-/* uSockets is entierly opaque so we can use the real header straight up */
-#include "../uSockets/src/libusockets.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdalign.h>
-#include <string.h>
-
-struct us_loop_t {
-
-    /* We only support one listen socket */
-    alignas(16) struct us_listen_socket_t *listen_socket;
-
-    /* The list of closed sockets */
-    struct us_socket_t *close_list;
-};
-
-struct us_loop_t *us_create_loop(void *hint, void (*wakeup_cb)(struct us_loop_t *loop), void (*pre_cb)(struct us_loop_t *loop), void (*post_cb)(struct us_loop_t *loop), unsigned int ext_size) {
-    struct us_loop_t *loop = (struct us_loop_t *) malloc(sizeof(struct us_loop_t) + ext_size);
-
-    loop->listen_socket = 0;
-    loop->close_list = 0;
-
-    return loop;
-}
-
-void us_loop_free(struct us_loop_t *loop) {
-    free(loop);
-}
-
-void *us_loop_ext(struct us_loop_t *loop) {
-    return loop + 1;
-}
-
-void us_loop_run(struct us_loop_t *loop) {
-
-}
-
-struct us_socket_context_t {
-    alignas(16) struct us_loop_t *loop;
-
-    struct us_socket_t *(*on_open)(struct us_socket_t *s, int is_client, char *ip, int ip_length);
-    struct us_socket_t *(*on_close)(struct us_socket_t *s);
-    struct us_socket_t *(*on_data)(struct us_socket_t *s, char *data, int length);
-    struct us_socket_t *(*on_writable)(struct us_socket_t *s);
-    struct us_socket_t *(*on_timeout)(struct us_socket_t *s);
-    struct us_socket_t *(*on_end)(struct us_socket_t *s);
-};
-
-struct us_socket_context_t *us_create_socket_context(int ssl, struct us_loop_t *loop, int ext_size, struct us_socket_context_options_t options) {
-    struct us_socket_context_t *socket_context = (struct us_socket_context_t *) malloc(sizeof(struct us_socket_context_t) + ext_size);
-
-    socket_context->loop = loop;
-
-    //printf("us_create_socket_context: %p\n", socket_context);
-
-    return socket_context;
-}
-
-void us_socket_context_free(int ssl, struct us_socket_context_t *context) {
-    //printf("us_socket_context_free: %p\n", context);
-    free(context);
-}
-
-void us_socket_context_on_open(int ssl, struct us_socket_context_t *context, struct us_socket_t *(*on_open)(struct us_socket_t *s, int is_client, char *ip, int ip_length)) {
-    context->on_open = on_open;
-}
-
-void us_socket_context_on_close(int ssl, struct us_socket_context_t *context, struct us_socket_t *(*on_close)(struct us_socket_t *s)) {
-    context->on_close = on_close;
-}
-
-void us_socket_context_on_data(int ssl, struct us_socket_context_t *context, struct us_socket_t *(*on_data)(struct us_socket_t *s, char *data, int length)) {
-    context->on_data = on_data;
-}
-
-void us_socket_context_on_writable(int ssl, struct us_socket_context_t *context, struct us_socket_t *(*on_writable)(struct us_socket_t *s)) {
-    context->on_writable = on_writable;
-}
-
-void us_socket_context_on_timeout(int ssl, struct us_socket_context_t *context, struct us_socket_t *(*on_timeout)(struct us_socket_t *s)) {
-    context->on_timeout = on_timeout;
-}
-
-void us_socket_context_on_end(int ssl, struct us_socket_context_t *context, struct us_socket_t *(*on_end)(struct us_socket_t *s)) {
-    context->on_end = on_end;
-}
-
-void *us_socket_context_ext(int ssl, struct us_socket_context_t *context) {
-    return context + 1;
-}
-
-struct us_listen_socket_t {
-    int socket_ext_size;
-    struct us_socket_context_t *context;
-};
-
-struct us_listen_socket_t *us_socket_context_listen(int ssl, struct us_socket_context_t *context, const char *host, int port, int options, int socket_ext_size) {
-    struct us_listen_socket_t *listen_socket = (struct us_listen_socket_t *) malloc(sizeof(struct us_listen_socket_t));
-
-    listen_socket->socket_ext_size = socket_ext_size;
-    listen_socket->context = context;
-
-    context->loop->listen_socket = listen_socket;
-
-    return listen_socket;
-}
-
-void us_listen_socket_close(int ssl, struct us_listen_socket_t *ls) {
-    free(ls);
-}
-
-struct us_socket_t {
-    alignas(16) struct us_socket_context_t *context;
-
-    int closed;
-    int shutdown;
-    int wants_writable;
-
-    //struct us_socket_t *next;
-};
-
-struct us_socket_t *us_socket_context_connect(int ssl, struct us_socket_context_t *context, const char *host, int port, int options, int socket_ext_size) {
-    //printf("us_socket_context_connect\n");
-
-    return 0;
-}
-
-struct us_loop_t *us_socket_context_loop(int ssl, struct us_socket_context_t *context) {
-    return context->loop;
-}
-
-struct us_socket_t *us_socket_context_adopt_socket(int ssl, struct us_socket_context_t *context, struct us_socket_t *s, int ext_size) {
-    struct us_socket_t *new_s = (struct us_socket_t *) realloc(s, sizeof(struct us_socket_t) + ext_size);
-    new_s->context = context;
-
-    return new_s;
-}
-
-struct us_socket_context_t *us_create_child_socket_context(int ssl, struct us_socket_context_t *context, int context_ext_size) {
-    /* We simply create a new context in this mock */
-    struct us_socket_context_options_t options = {};
-    struct us_socket_context_t *child_context = us_create_socket_context(ssl, context->loop, context_ext_size, options);
-
-    return child_context;
-}
-
-int us_socket_write(int ssl, struct us_socket_t *s, const char *data, int length, int msg_more) {
-
-    if (!length) {
-        return 0;
-    }
-
-    /* Last byte determines if we send everything or not, to stress the buffering mechanism */
-    if (data[length - 1] % 2 == 0) {
-        /* Send only half, but first set our outgoing flag */
-        s->wants_writable = 1;
-        return length / 2;
-    }
-
-    /* Send everything */
-    return length;
-}
-
-void us_socket_timeout(int ssl, struct us_socket_t *s, unsigned int seconds) {
-
-}
-
-void *us_socket_ext(int ssl, struct us_socket_t *s) {
-    return s + 1;
-}
-
-struct us_socket_context_t *us_socket_context(int ssl, struct us_socket_t *s) {
-    return s->context;
-}
-
-void us_socket_flush(int ssl, struct us_socket_t *s) {
-
-}
-
-void us_socket_shutdown(int ssl, struct us_socket_t *s) {
-    s->shutdown = 1;
-}
-
-int us_socket_is_shut_down(int ssl, struct us_socket_t *s) {
-    return s->shutdown;
-}
-
-int us_socket_is_closed(int ssl, struct us_socket_t *s) {
-    return s->closed;
-}
-
-struct us_socket_t *us_socket_close(int ssl, struct us_socket_t *s) {
-
-    if (!us_socket_is_closed(0, s)) {
-        /* Emit close event */
-        s = s->context->on_close(s);
-    }
-
-    /* We are now closed */
-    s->closed = 1;
-
-    /* Add us to the close list */
-
-    return s;
-}
-
-void us_socket_remote_address(int ssl, struct us_socket_t *s, char *buf, int *length) {
-    printf("us_socket_remote_address\n");
-}
-
-/* We expose this function to let fuzz targets push data to uSockets */
-void us_loop_read_mocked_data(struct us_loop_t *loop, char *data, unsigned int size) {
-
-    /* We are unwound so let's free all closed polls here */
-
-
-    /* We have one listen socket */
-    int socket_ext_size = loop->listen_socket->socket_ext_size;
-
-    /* Create a socket with information from the listen socket */
-    struct us_socket_t *s = (struct us_socket_t *) malloc(sizeof(struct us_socket_t) + socket_ext_size);
-    s->context = loop->listen_socket->context;
-    s->closed = 0;
-    s->shutdown = 0;
-    s->wants_writable = 0;
-
-    /* Emit open event */
-    s = s->context->on_open(s, 0, 0, 0);
-    if (!us_socket_is_closed(0, s) && !us_socket_is_shut_down(0, s)) {
-
-        /* Trigger writable event if we want it */
-        if (s->wants_writable) {
-            s->wants_writable = 0;
-            s = s->context->on_writable(s);
-            /* Check if we closed inside of writable */
-            if (us_socket_is_closed(0, s) || us_socket_is_shut_down(0, s)) {
-                goto done;
-            }
-        }
-
-        /* Loop over the data, emitting it in chunks of 0-255 bytes */
-        for (int i = 0; i < size; ) {
-            unsigned char chunkLength = data[i++];
-            if (i + chunkLength > size) {
-                chunkLength = size - i;
-            }
-
-            /* Copy the data chunk to a properly padded buffer */
-            static char *paddedBuffer;
-            if (!paddedBuffer) {
-                paddedBuffer = malloc(128 + 255 + 128);
-                memset(paddedBuffer, 0, 128 + 255 + 128);
-            }
-            memcpy(paddedBuffer + 128, data + i, chunkLength);
-
-            /* Emit a bunch of data events here */
-            s = s->context->on_data(s, paddedBuffer + 128, chunkLength);
-            if (us_socket_is_closed(0, s) || us_socket_is_shut_down(0, s)) {
-                break;
-            }
-
-            /* Also trigger it here */
-            if (s->wants_writable) {
-                s->wants_writable = 0;
-                s = s->context->on_writable(s);
-                /* Check if we closed inside of writable */
-                if (us_socket_is_closed(0, s) || us_socket_is_shut_down(0, s)) {
-                    goto done;
-                }
-            }
-
-            i += chunkLength;
-        }
-    }
-
-done:
-    if (!us_socket_is_closed(0, s)) {
-        /* Emit close event */
-        s = s->context->on_close(s);
-    }
-
-    /* Free the socket */
-    free(s);
-}

httpd.cpp

@@ -0,0 +1,46 @@
+/*
+ *  httpd.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2020 Machine Zone, Inc. All rights reserved.
+ *
+ *  Buid with make httpd
+ */
+
+#include <ixwebsocket/IXHttpServer.h>
+#include <sstream>
+#include <iostream>
+
+int main(int argc, char** argv)
+{
+    if (argc != 3)
+    {
+        std::cerr << "Usage: " << argv[0]
+                  << " <port> <host>" << std::endl;
+        std::cerr << " " << argv[0] << " 9090 127.0.0.1" << std::endl;
+        std::cerr << " " << argv[0] << " 9090 0.0.0.0" << std::endl;
+        return 1;
+    }
+
+    int port;
+    std::stringstream ss;
+    ss << argv[1];
+    ss >> port;
+    std::string hostname(argv[2]);
+
+    std::cout << "Listening on " << hostname
+              << ":" << port << std::endl;
+
+    ix::HttpServer server(port, hostname);
+
+    auto res = server.listen();
+    if (!res.first)
+    {
+        std::cout << res.second << std::endl;
+        return 1;
+    }
+
+    server.start();
+    server.wait();
+
+    return 0;
+}

ixwebsocket-config.cmake.in

@@ -0,0 +1,9 @@
+@PACKAGE_INIT@
+
+include(CMakeFindDependencyMacro)
+
+if (@USE_ZLIB@)
+  find_dependency(ZLIB)
+endif()
+
+include("${CMAKE_CURRENT_LIST_DIR}/ixwebsocket-targets.cmake")

ixwebsocket.pc.in

@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=${prefix}
+libdir=${exec_prefix}/lib
+includedir=${prefix}/include
+
+Name: ixwebsocket
+Description: websocket and http client and server library, with TLS support and very few dependencies
+Version: @CMAKE_PROJECT_VERSION@
+Libs: -L${libdir} -lixwebsocket
+Cflags: -I${includedir}
+Requires: @requires@

ixwebsocket/IXBase64.h

@@ -0,0 +1,125 @@
+#ifndef _MACARON_BASE64_H_
+#define _MACARON_BASE64_H_
+
+/**
+ * The MIT License (MIT)
+ * Copyright (c) 2016 tomykaira
+ *
+ * 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.
+ */
+
+#include <cstdint>
+#include <string>
+
+namespace macaron {
+
+class Base64 {
+ public:
+
+  static std::string Encode(const std::string data) {
+    static constexpr char sEncodingTable[] = {
+      'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
+      'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
+      'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
+      'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
+      'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
+      'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
+      'w', 'x', 'y', 'z', '0', '1', '2', '3',
+      '4', '5', '6', '7', '8', '9', '+', '/'
+    };
+
+    size_t in_len = data.size();
+    size_t out_len = 4 * ((in_len + 2) / 3);
+    std::string ret(out_len, '\0');
+    size_t i;
+    char *p = const_cast<char*>(ret.c_str());
+
+    for (i = 0; i < in_len - 2; i += 3) {
+      *p++ = sEncodingTable[(data[i] >> 2) & 0x3F];
+      *p++ = sEncodingTable[((data[i] & 0x3) << 4) | ((int) (data[i + 1] & 0xF0) >> 4)];
+      *p++ = sEncodingTable[((data[i + 1] & 0xF) << 2) | ((int) (data[i + 2] & 0xC0) >> 6)];
+      *p++ = sEncodingTable[data[i + 2] & 0x3F];
+    }
+    if (i < in_len) {
+      *p++ = sEncodingTable[(data[i] >> 2) & 0x3F];
+      if (i == (in_len - 1)) {
+        *p++ = sEncodingTable[((data[i] & 0x3) << 4)];
+        *p++ = '=';
+      }
+      else {
+        *p++ = sEncodingTable[((data[i] & 0x3) << 4) | ((int) (data[i + 1] & 0xF0) >> 4)];
+        *p++ = sEncodingTable[((data[i + 1] & 0xF) << 2)];
+      }
+      *p++ = '=';
+    }
+
+    return ret;
+  }
+
+  static std::string Decode(const std::string& input, std::string& out) {
+    static constexpr unsigned char kDecodingTable[] = {
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 62, 64, 64, 64, 63,
+      52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 64, 64, 64, 64, 64, 64,
+      64,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
+      15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 64, 64, 64, 64, 64,
+      64, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+      41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
+      64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64
+    };
+
+    size_t in_len = input.size();
+    if (in_len % 4 != 0) return "Input data size is not a multiple of 4";
+
+    size_t out_len = in_len / 4 * 3;
+    if (input[in_len - 1] == '=') out_len--;
+    if (input[in_len - 2] == '=') out_len--;
+
+    out.resize(out_len);
+
+    for (size_t i = 0, j = 0; i < in_len;) {
+      uint32_t a = input[i] == '=' ? 0 & i++ : kDecodingTable[static_cast<int>(input[i++])];
+      uint32_t b = input[i] == '=' ? 0 & i++ : kDecodingTable[static_cast<int>(input[i++])];
+      uint32_t c = input[i] == '=' ? 0 & i++ : kDecodingTable[static_cast<int>(input[i++])];
+      uint32_t d = input[i] == '=' ? 0 & i++ : kDecodingTable[static_cast<int>(input[i++])];
+
+      uint32_t triple = (a << 3 * 6) + (b << 2 * 6) + (c << 1 * 6) + (d << 0 * 6);
+
+      if (j < out_len) out[j++] = (triple >> 2 * 8) & 0xFF;
+      if (j < out_len) out[j++] = (triple >> 1 * 8) & 0xFF;
+      if (j < out_len) out[j++] = (triple >> 0 * 8) & 0xFF;
+    }
+
+    return "";
+  }
+
+};
+
+}
+
+#endif /* _MACARON_BASE64_H_ */

ixwebsocket/IXBench.cpp

@@ -0,0 +1,61 @@
+/*
+ *  IXBench.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2017-2020 Machine Zone, Inc. All rights reserved.
+ */
+
+#include "IXBench.h"
+
+#include <iostream>
+
+namespace ix
+{
+    Bench::Bench(const std::string& description)
+        : _description(description)
+    {
+        reset();
+    }
+
+    Bench::~Bench()
+    {
+        if (!_reported)
+        {
+            report();
+        }
+    }
+
+    void Bench::reset()
+    {
+        _start = std::chrono::high_resolution_clock::now();
+        _reported = false;
+    }
+
+    void Bench::report()
+    {
+        auto now = std::chrono::high_resolution_clock::now();
+        auto microseconds = std::chrono::duration_cast<std::chrono::microseconds>(now - _start);
+
+        _duration = microseconds.count();
+        std::cerr << _description << " completed in " << _duration << " us" << std::endl;
+
+        setReported();
+    }
+
+    void Bench::record()
+    {
+        auto now = std::chrono::high_resolution_clock::now();
+        auto microseconds = std::chrono::duration_cast<std::chrono::microseconds>(now - _start);
+
+        _duration = microseconds.count();
+    }
+
+    void Bench::setReported()
+    {
+        _reported = true;
+    }
+
+    uint64_t Bench::getDuration() const
+    {
+        return _duration;
+    }
+} // namespace ix

ixwebsocket/IXBench.h

@@ -0,0 +1,32 @@
+/*
+ *  IXBench.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2017-2020 Machine Zone, Inc. All rights reserved.
+ */
+#pragma once
+
+#include <chrono>
+#include <cstdint>
+#include <string>
+
+namespace ix
+{
+    class Bench
+    {
+    public:
+        Bench(const std::string& description);
+        ~Bench();
+
+        void reset();
+        void record();
+        void report();
+        void setReported();
+        uint64_t getDuration() const;
+
+    private:
+        std::string _description;
+        std::chrono::time_point<std::chrono::high_resolution_clock> _start;
+        uint64_t _duration;
+        bool _reported;
+    };
+} // namespace ix

ixwebsocket/IXCancellationRequest.cpp

@@ -0,0 +1,35 @@
+/*
+ *  IXCancellationRequest.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#include "IXCancellationRequest.h"
+
+#include <cassert>
+#include <chrono>
+
+namespace ix
+{
+    CancellationRequest makeCancellationRequestWithTimeout(
+        int secs, std::atomic<bool>& requestInitCancellation)
+    {
+        assert(secs > 0);
+
+        auto start = std::chrono::system_clock::now();
+        auto timeout = std::chrono::seconds(secs);
+
+        auto isCancellationRequested = [&requestInitCancellation, start, timeout]() -> bool {
+            // Was an explicit cancellation requested ?
+            if (requestInitCancellation) return true;
+
+            auto now = std::chrono::system_clock::now();
+            if ((now - start) > timeout) return true;
+
+            // No cancellation request
+            return false;
+        };
+
+        return isCancellationRequested;
+    }
+} // namespace ix

ixwebsocket/IXCancellationRequest.h

@@ -0,0 +1,18 @@
+/*
+ *  IXCancellationRequest.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+ */
+
+#pragma once
+
+#include <atomic>
+#include <functional>
+
+namespace ix
+{
+    using CancellationRequest = std::function<bool()>;
+
+    CancellationRequest makeCancellationRequestWithTimeout(
+        int seconds, std::atomic<bool>& requestInitCancellation);
+} // namespace ix

ixwebsocket/IXConnectionState.cpp

@@ -0,0 +1,73 @@
+/*
+ *  IXConnectionState.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#include "IXConnectionState.h"
+
+namespace ix
+{
+    std::atomic<uint64_t> ConnectionState::_globalId(0);
+
+    ConnectionState::ConnectionState()
+        : _terminated(false)
+    {
+        computeId();
+    }
+
+    void ConnectionState::computeId()
+    {
+        _id = std::to_string(_globalId++);
+    }
+
+    const std::string& ConnectionState::getId() const
+    {
+        return _id;
+    }
+
+    std::shared_ptr<ConnectionState> ConnectionState::createConnectionState()
+    {
+        return std::make_shared<ConnectionState>();
+    }
+
+    void ConnectionState::setOnSetTerminatedCallback(const OnSetTerminatedCallback& callback)
+    {
+        _onSetTerminatedCallback = callback;
+    }
+
+    bool ConnectionState::isTerminated() const
+    {
+        return _terminated;
+    }
+
+    void ConnectionState::setTerminated()
+    {
+        _terminated = true;
+
+        if (_onSetTerminatedCallback)
+        {
+            _onSetTerminatedCallback();
+        }
+    }
+
+    const std::string& ConnectionState::getRemoteIp()
+    {
+        return _remoteIp;
+    }
+
+    int ConnectionState::getRemotePort()
+    {
+        return _remotePort;
+    }
+
+    void ConnectionState::setRemoteIp(const std::string& remoteIp)
+    {
+        _remoteIp = remoteIp;
+    }
+
+    void ConnectionState::setRemotePort(int remotePort)
+    {
+        _remotePort = remotePort;
+    }
+} // namespace ix

ixwebsocket/IXConnectionState.h

@@ -0,0 +1,54 @@
+/*
+ *  IXConnectionState.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#pragma once
+
+#include <atomic>
+#include <cstdint>
+#include <functional>
+#include <memory>
+#include <string>
+
+namespace ix
+{
+    using OnSetTerminatedCallback = std::function<void()>;
+
+    class ConnectionState
+    {
+    public:
+        ConnectionState();
+        virtual ~ConnectionState() = default;
+
+        virtual void computeId();
+        virtual const std::string& getId() const;
+
+        void setTerminated();
+        bool isTerminated() const;
+
+        const std::string& getRemoteIp();
+        int getRemotePort();
+
+        static std::shared_ptr<ConnectionState> createConnectionState();
+
+    private:
+        void setOnSetTerminatedCallback(const OnSetTerminatedCallback& callback);
+
+        void setRemoteIp(const std::string& remoteIp);
+        void setRemotePort(int remotePort);
+
+    protected:
+        std::atomic<bool> _terminated;
+        std::string _id;
+        OnSetTerminatedCallback _onSetTerminatedCallback;
+
+        static std::atomic<uint64_t> _globalId;
+
+        std::string _remoteIp;
+        int _remotePort;
+
+        friend class SocketServer;
+    };
+} // namespace ix

ixwebsocket/IXDNSLookup.cpp

@@ -0,0 +1,201 @@
+/*
+ *  IXDNSLookup.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+ */
+
+//
+// On Windows Universal Platform (uwp), gai_strerror defaults behavior is to returns wchar_t
+// which is different from all other platforms. We want the non unicode version.
+// See https://github.com/microsoft/vcpkg/pull/11030
+// We could do this in IXNetSystem.cpp but so far we are only using gai_strerror in here.
+//
+#ifdef _UNICODE
+#undef _UNICODE
+#endif
+#ifdef UNICODE
+#undef UNICODE
+#endif
+
+#include "IXDNSLookup.h"
+
+#include "IXNetSystem.h"
+#include <chrono>
+#include <string.h>
+#include <thread>
+#include <utility>
+
+// mingw build quirks
+#if defined(_WIN32) && defined(__GNUC__)
+#ifndef AI_NUMERICSERV
+#define AI_NUMERICSERV NI_NUMERICSERV
+#endif
+#ifndef AI_ADDRCONFIG
+#define AI_ADDRCONFIG LUP_ADDRCONFIG
+#endif
+#endif
+
+#ifdef __APPLE__
+#ifndef AI_NUMERICSERV
+#define AI_NUMERICSERV 0
+#endif
+#endif
+
+namespace ix
+{
+    const int64_t DNSLookup::kDefaultWait = 1; // ms
+
+    DNSLookup::DNSLookup(const std::string& hostname, int port, int64_t wait)
+        : _hostname(hostname)
+        , _port(port)
+        , _wait(wait)
+        , _res(nullptr)
+        , _done(false)
+    {
+        ;
+    }
+
+    DNSLookup::AddrInfoPtr DNSLookup::getAddrInfo(const std::string& hostname,
+                                            int port,
+                                            std::string& errMsg)
+    {
+        struct addrinfo hints;
+        memset(&hints, 0, sizeof(hints));
+        hints.ai_flags = AI_ADDRCONFIG | AI_NUMERICSERV;
+        hints.ai_family = AF_UNSPEC;
+        hints.ai_socktype = SOCK_STREAM;
+
+        std::string sport = std::to_string(port);
+
+        struct addrinfo* res;
+        int getaddrinfo_result = getaddrinfo(hostname.c_str(), sport.c_str(), &hints, &res);
+        if (getaddrinfo_result)
+        {
+            errMsg = gai_strerror(getaddrinfo_result);
+            res = nullptr;
+        }
+        return AddrInfoPtr{ res, freeaddrinfo };
+    }
+
+    DNSLookup::AddrInfoPtr DNSLookup::resolve(std::string& errMsg,
+                                        const CancellationRequest& isCancellationRequested,
+                                        bool cancellable)
+    {
+        return cancellable ? resolveCancellable(errMsg, isCancellationRequested)
+                           : resolveUnCancellable(errMsg, isCancellationRequested);
+    }
+
+    DNSLookup::AddrInfoPtr DNSLookup::resolveUnCancellable(
+        std::string& errMsg, const CancellationRequest& isCancellationRequested)
+    {
+        errMsg = "no error";
+
+        // Maybe a cancellation request got in before the background thread terminated ?
+        if (isCancellationRequested())
+        {
+            errMsg = "cancellation requested";
+            return nullptr;
+        }
+
+        return getAddrInfo(_hostname, _port, errMsg);
+    }
+
+    DNSLookup::AddrInfoPtr DNSLookup::resolveCancellable(
+        std::string& errMsg, const CancellationRequest& isCancellationRequested)
+    {
+        errMsg = "no error";
+
+        // Can only be called once, otherwise we would have to manage a pool
+        // of background thread which is overkill for our usage.
+        if (_done)
+        {
+            return nullptr; // programming error, create a second DNSLookup instance
+                            // if you need a second lookup.
+        }
+
+        //
+        // Good resource on thread forced termination
+        // https://www.bo-yang.net/2017/11/19/cpp-kill-detached-thread
+        //
+        auto ptr = shared_from_this();
+        std::weak_ptr<DNSLookup> self(ptr);
+
+        int port = _port;
+        std::string hostname(_hostname);
+
+        // We make the background thread doing the work a shared pointer
+        // instead of a member variable, because it can keep running when
+        // this object goes out of scope, in case of cancellation
+        auto t = std::make_shared<std::thread>(&DNSLookup::run, this, self, hostname, port);
+        t->detach();
+
+        while (!_done)
+        {
+            // Wait for 1 milliseconds, to see if the bg thread has terminated.
+            // We do not use a condition variable to wait, as destroying this one
+            // if the bg thread is alive can cause undefined behavior.
+            std::this_thread::sleep_for(std::chrono::milliseconds(_wait));
+
+            // Were we cancelled ?
+            if (isCancellationRequested())
+            {
+                errMsg = "cancellation requested";
+                return nullptr;
+            }
+        }
+
+        // Maybe a cancellation request got in before the bg terminated ?
+        if (isCancellationRequested())
+        {
+            errMsg = "cancellation requested";
+            return nullptr;
+        }
+
+        errMsg = getErrMsg();
+        return getRes();
+    }
+
+    void DNSLookup::run(std::weak_ptr<DNSLookup> self,
+                        std::string hostname,
+                        int port) // thread runner
+    {
+        // We don't want to read or write into members variables of an object that could be
+        // gone, so we use temporary variables (res) or we pass in by copy everything that
+        // getAddrInfo needs to work.
+        std::string errMsg;
+        auto res = getAddrInfo(hostname, port, errMsg);
+
+        if (auto lock = self.lock())
+        {
+            // Copy result into the member variables
+            setRes(res);
+            setErrMsg(errMsg);
+
+            _done = true;
+        }
+    }
+
+    void DNSLookup::setErrMsg(const std::string& errMsg)
+    {
+        std::lock_guard<std::mutex> lock(_errMsgMutex);
+        _errMsg = errMsg;
+    }
+
+    const std::string& DNSLookup::getErrMsg()
+    {
+        std::lock_guard<std::mutex> lock(_errMsgMutex);
+        return _errMsg;
+    }
+
+    void DNSLookup::setRes(DNSLookup::AddrInfoPtr addr)
+    {
+        std::lock_guard<std::mutex> lock(_resMutex);
+        _res = std::move(addr);
+    }
+
+    DNSLookup::AddrInfoPtr DNSLookup::getRes()
+    {
+        std::lock_guard<std::mutex> lock(_resMutex);
+        return _res;
+    }
+} // namespace ix

ixwebsocket/IXDNSLookup.h

@@ -0,0 +1,67 @@
+/*
+ *  IXDNSLookup.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+ *
+ *  Resolve a hostname+port to a struct addrinfo obtained with getaddrinfo
+ *  Does this in a background thread so that it can be cancelled, since
+ *  getaddrinfo is a blocking call, and we don't want to block the main thread on Mobile.
+ */
+
+#pragma once
+
+#include "IXCancellationRequest.h"
+#include <atomic>
+#include <cstdint>
+#include <memory>
+#include <mutex>
+#include <set>
+#include <string>
+
+struct addrinfo;
+
+namespace ix
+{
+    class DNSLookup : public std::enable_shared_from_this<DNSLookup>
+    {
+    public:
+        using AddrInfoPtr = std::shared_ptr<addrinfo>;
+        DNSLookup(const std::string& hostname, int port, int64_t wait = DNSLookup::kDefaultWait);
+        ~DNSLookup() = default;
+
+        AddrInfoPtr resolve(std::string& errMsg,
+                                 const CancellationRequest& isCancellationRequested,
+                                 bool cancellable = true);
+
+    private:
+        AddrInfoPtr resolveCancellable(std::string& errMsg,
+                                            const CancellationRequest& isCancellationRequested);
+        AddrInfoPtr resolveUnCancellable(std::string& errMsg,
+                                              const CancellationRequest& isCancellationRequested);
+
+        AddrInfoPtr getAddrInfo(const std::string& hostname,
+                                            int port,
+                                            std::string& errMsg);
+
+        void run(std::weak_ptr<DNSLookup> self, std::string hostname, int port); // thread runner
+
+        void setErrMsg(const std::string& errMsg);
+        const std::string& getErrMsg();
+
+        void setRes(AddrInfoPtr addr);
+        AddrInfoPtr getRes();
+
+        std::string _hostname;
+        int _port;
+        int64_t _wait;
+        const static int64_t kDefaultWait;
+
+        AddrInfoPtr _res;
+        std::mutex _resMutex;
+
+        std::string _errMsg;
+        std::mutex _errMsgMutex;
+
+        std::atomic<bool> _done;
+    };
+} // namespace ix

ixwebsocket/IXExponentialBackoff.cpp

@@ -0,0 +1,44 @@
+/*
+ *  IXExponentialBackoff.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2017-2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#include "IXExponentialBackoff.h"
+
+#include <cmath>
+
+namespace ix
+{
+    uint32_t calculateRetryWaitMilliseconds(uint32_t retryCount,
+                                            uint32_t maxWaitBetweenReconnectionRetries,
+                                            uint32_t minWaitBetweenReconnectionRetries)
+    {
+        // It's easy with a power function to go beyond 2^32, and then 
+        // have unexpected results, so prepare for that
+        const uint32_t maxRetryCountWithoutOverflow = 26;
+
+        uint32_t waitTime = 0;
+        if (retryCount < maxRetryCountWithoutOverflow)
+        {
+            waitTime = std::pow(2, retryCount) * 100;
+        }
+
+        if (waitTime < minWaitBetweenReconnectionRetries)
+        {
+            waitTime = minWaitBetweenReconnectionRetries;
+        }
+
+        if (waitTime > maxWaitBetweenReconnectionRetries)
+        {
+            waitTime = maxWaitBetweenReconnectionRetries;
+        }
+
+        if (retryCount >= maxRetryCountWithoutOverflow)
+        {
+            waitTime = maxWaitBetweenReconnectionRetries;
+        }
+
+        return waitTime;
+    }
+} // namespace ix

ixwebsocket/IXExponentialBackoff.h

@@ -0,0 +1,16 @@
+/*
+ *  IXExponentialBackoff.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2017-2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#pragma once
+
+#include <cstdint>
+
+namespace ix
+{
+    uint32_t calculateRetryWaitMilliseconds(uint32_t retryCount,
+                                            uint32_t maxWaitBetweenReconnectionRetries,
+                                            uint32_t minWaitBetweenReconnectionRetries);
+} // namespace ix

ixwebsocket/IXGetFreePort.cpp

@@ -0,0 +1,97 @@
+/*
+ *  IXGetFreePort.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone. All rights reserved.
+ */
+
+// Using inet_addr will trigger an error on uwp without this
+// FIXME: use a different api
+#ifdef _WIN32
+#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS
+#define _WINSOCK_DEPRECATED_NO_WARNINGS
+#endif
+#endif
+
+#include "IXGetFreePort.h"
+
+#include <ixwebsocket/IXNetSystem.h>
+#include <ixwebsocket/IXSocket.h>
+#include <random>
+#include <string>
+
+namespace ix
+{
+    int getAnyFreePortRandom()
+    {
+        std::random_device rd;
+        std::uniform_int_distribution<int> dist(1024 + 1, 65535);
+
+        return dist(rd);
+    }
+
+    int getAnyFreePort()
+    {
+        socket_t sockfd;
+        if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
+        {
+            return getAnyFreePortRandom();
+        }
+
+        int enable = 1;
+        if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (char*) &enable, sizeof(enable)) < 0)
+        {
+            return getAnyFreePortRandom();
+        }
+
+        // Bind to port 0. This is the standard way to get a free port.
+        struct sockaddr_in server; // server address information
+        server.sin_family = AF_INET;
+        server.sin_port = htons(0);
+        server.sin_addr.s_addr = inet_addr("127.0.0.1");
+
+        if (bind(sockfd, (struct sockaddr*) &server, sizeof(server)) < 0)
+        {
+            Socket::closeSocket(sockfd);
+            return getAnyFreePortRandom();
+        }
+
+        struct sockaddr_in sa; // server address information
+        socklen_t len = sizeof(sa);
+        if (getsockname(sockfd, (struct sockaddr*) &sa, &len) < 0)
+        {
+            Socket::closeSocket(sockfd);
+            return getAnyFreePortRandom();
+        }
+
+        int port = ntohs(sa.sin_port);
+        Socket::closeSocket(sockfd);
+
+        return port;
+    }
+
+    int getFreePort()
+    {
+        while (true)
+        {
+#if defined(__has_feature)
+#if __has_feature(address_sanitizer)
+            int port = getAnyFreePortRandom();
+#else
+            int port = getAnyFreePort();
+#endif
+#else
+            int port = getAnyFreePort();
+#endif
+            //
+            // Only port above 1024 can be used by non root users, but for some
+            // reason I got port 7 returned with macOS when binding on port 0...
+            //
+            if (port > 1024)
+            {
+                return port;
+            }
+        }
+
+        return -1;
+    }
+} // namespace ix

ixwebsocket/IXGetFreePort.h

@@ -0,0 +1,12 @@
+/*
+ *  IXGetFreePort.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone. All rights reserved.
+ */
+
+#pragma once
+
+namespace ix
+{
+    int getFreePort();
+} // namespace ix

ixwebsocket/IXGzipCodec.cpp

@@ -0,0 +1,120 @@
+/*
+ *  IXGzipCodec.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2020 Machine Zone, Inc. All rights reserved.
+ */
+
+#include "IXGzipCodec.h"
+
+#include "IXBench.h"
+#include <array>
+#include <string.h>
+
+#ifdef IXWEBSOCKET_USE_ZLIB
+#include <zlib.h>
+#endif
+
+namespace ix
+{
+    std::string gzipCompress(const std::string& str)
+    {
+#ifndef IXWEBSOCKET_USE_ZLIB
+        return std::string();
+#else
+        z_stream zs; // z_stream is zlib's control structure
+        memset(&zs, 0, sizeof(zs));
+
+        // deflateInit2 configure the file format: request gzip instead of deflate
+        const int windowBits = 15;
+        const int GZIP_ENCODING = 16;
+
+        deflateInit2(&zs,
+                     Z_DEFAULT_COMPRESSION,
+                     Z_DEFLATED,
+                     windowBits | GZIP_ENCODING,
+                     8,
+                     Z_DEFAULT_STRATEGY);
+
+        zs.next_in = (Bytef*) str.data();
+        zs.avail_in = (uInt) str.size(); // set the z_stream's input
+
+        int ret;
+        char outbuffer[32768];
+        std::string outstring;
+
+        // retrieve the compressed bytes blockwise
+        do
+        {
+            zs.next_out = reinterpret_cast<Bytef*>(outbuffer);
+            zs.avail_out = sizeof(outbuffer);
+
+            ret = deflate(&zs, Z_FINISH);
+
+            if (outstring.size() < zs.total_out)
+            {
+                // append the block to the output string
+                outstring.append(outbuffer, zs.total_out - outstring.size());
+            }
+        } while (ret == Z_OK);
+
+        deflateEnd(&zs);
+
+        return outstring;
+#endif // IXWEBSOCKET_USE_ZLIB
+    }
+
+#ifdef IXWEBSOCKET_USE_DEFLATE
+    static uint32_t loadDecompressedGzipSize(const uint8_t* p)
+    {
+        return ((uint32_t) p[0] << 0) | ((uint32_t) p[1] << 8) | ((uint32_t) p[2] << 16) |
+               ((uint32_t) p[3] << 24);
+    }
+#endif
+
+    bool gzipDecompress(const std::string& in, std::string& out)
+    {
+#ifndef IXWEBSOCKET_USE_ZLIB
+        return false;
+#else
+        z_stream inflateState;
+        memset(&inflateState, 0, sizeof(inflateState));
+
+        inflateState.zalloc = Z_NULL;
+        inflateState.zfree = Z_NULL;
+        inflateState.opaque = Z_NULL;
+        inflateState.avail_in = 0;
+        inflateState.next_in = Z_NULL;
+
+        if (inflateInit2(&inflateState, 16 + MAX_WBITS) != Z_OK)
+        {
+            return false;
+        }
+
+        inflateState.avail_in = (uInt) in.size();
+        inflateState.next_in = (unsigned char*) (const_cast<char*>(in.data()));
+
+        const int kBufferSize = 1 << 14;
+        std::array<unsigned char, kBufferSize> compressBuffer;
+
+        do
+        {
+            inflateState.avail_out = (uInt) kBufferSize;
+            inflateState.next_out = &compressBuffer.front();
+
+            int ret = inflate(&inflateState, Z_SYNC_FLUSH);
+
+            if (ret == Z_NEED_DICT || ret == Z_DATA_ERROR || ret == Z_MEM_ERROR)
+            {
+                inflateEnd(&inflateState);
+                return false;
+            }
+
+            out.append(reinterpret_cast<char*>(&compressBuffer.front()),
+                       kBufferSize - inflateState.avail_out);
+        } while (inflateState.avail_out == 0);
+
+        inflateEnd(&inflateState);
+        return true;
+#endif // IXWEBSOCKET_USE_ZLIB
+    }
+} // namespace ix

ixwebsocket/IXGzipCodec.h

@@ -0,0 +1,15 @@
+/*
+ *  IXGzipCodec.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2020 Machine Zone, Inc. All rights reserved.
+ */
+
+#pragma once
+
+#include <string>
+
+namespace ix
+{
+    std::string gzipCompress(const std::string& str);
+    bool gzipDecompress(const std::string& in, std::string& out);
+} // namespace ix

ixwebsocket/IXHttp.cpp

@@ -0,0 +1,217 @@
+/*
+ *  IXHttp.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#include "IXHttp.h"
+
+#include "IXCancellationRequest.h"
+#include "IXGzipCodec.h"
+#include "IXSocket.h"
+#include <sstream>
+#include <vector>
+
+namespace ix
+{
+    std::string Http::trim(const std::string& str)
+    {
+        std::string out;
+        for (auto c : str)
+        {
+            if (c != ' ' && c != '\n' && c != '\r')
+            {
+                out += c;
+            }
+        }
+
+        return out;
+    }
+
+    std::pair<std::string, int> Http::parseStatusLine(const std::string& line)
+    {
+        // Request-Line   = Method SP Request-URI SP HTTP-Version CRLF
+        std::string token;
+        std::stringstream tokenStream(line);
+        std::vector<std::string> tokens;
+
+        // Split by ' '
+        while (std::getline(tokenStream, token, ' '))
+        {
+            tokens.push_back(token);
+        }
+
+        std::string httpVersion;
+        if (tokens.size() >= 1)
+        {
+            httpVersion = trim(tokens[0]);
+        }
+
+        int statusCode = -1;
+        if (tokens.size() >= 2)
+        {
+            std::stringstream ss;
+            ss << trim(tokens[1]);
+            ss >> statusCode;
+        }
+
+        return std::make_pair(httpVersion, statusCode);
+    }
+
+    std::tuple<std::string, std::string, std::string> Http::parseRequestLine(
+        const std::string& line)
+    {
+        // Request-Line   = Method SP Request-URI SP HTTP-Version CRLF
+        std::string token;
+        std::stringstream tokenStream(line);
+        std::vector<std::string> tokens;
+
+        // Split by ' '
+        while (std::getline(tokenStream, token, ' '))
+        {
+            tokens.push_back(token);
+        }
+
+        std::string method;
+        if (tokens.size() >= 1)
+        {
+            method = trim(tokens[0]);
+        }
+
+        std::string requestUri;
+        if (tokens.size() >= 2)
+        {
+            requestUri = trim(tokens[1]);
+        }
+
+        std::string httpVersion;
+        if (tokens.size() >= 3)
+        {
+            httpVersion = trim(tokens[2]);
+        }
+
+        return std::make_tuple(method, requestUri, httpVersion);
+    }
+
+    std::tuple<bool, std::string, HttpRequestPtr> Http::parseRequest(
+        std::unique_ptr<Socket>& socket, int timeoutSecs)
+    {
+        HttpRequestPtr httpRequest;
+
+        std::atomic<bool> requestInitCancellation(false);
+
+        auto isCancellationRequested =
+            makeCancellationRequestWithTimeout(timeoutSecs, requestInitCancellation);
+
+        // Read first line
+        auto lineResult = socket->readLine(isCancellationRequested);
+        auto lineValid = lineResult.first;
+        auto line = lineResult.second;
+
+        if (!lineValid)
+        {
+            return std::make_tuple(false, "Error reading HTTP request line", httpRequest);
+        }
+
+        // Parse request line (GET /foo HTTP/1.1\r\n)
+        auto requestLine = Http::parseRequestLine(line);
+        auto method = std::get<0>(requestLine);
+        auto uri = std::get<1>(requestLine);
+        auto httpVersion = std::get<2>(requestLine);
+
+        // Retrieve and validate HTTP headers
+        auto result = parseHttpHeaders(socket, isCancellationRequested);
+        auto headersValid = result.first;
+        auto headers = result.second;
+
+        if (!headersValid)
+        {
+            return std::make_tuple(false, "Error parsing HTTP headers", httpRequest);
+        }
+
+        std::string body;
+        if (headers.find("Content-Length") != headers.end())
+        {
+            int contentLength = 0;
+            {
+                const char* p = headers["Content-Length"].c_str();
+                char* p_end{};
+                errno = 0;
+                long val = std::strtol(p, &p_end, 10);
+                if (p_end == p            // invalid argument
+                    || errno == ERANGE    // out of range
+                    || val < std::numeric_limits<int>::min()
+                    || val > std::numeric_limits<int>::max()) {
+                    return std::make_tuple(
+                        false, "Error parsing HTTP Header 'Content-Length'", httpRequest);
+                }
+                contentLength = val;
+            }
+            if (contentLength < 0)
+            {
+                return std::make_tuple(
+                    false, "Error: 'Content-Length' should be a positive integer", httpRequest);
+            }
+
+            auto res = socket->readBytes(contentLength, nullptr, nullptr, isCancellationRequested);
+            if (!res.first)
+            {
+                return std::make_tuple(
+                    false, std::string("Error reading request: ") + res.second, httpRequest);
+            }
+            body = res.second;
+        }
+
+        // If the content was compressed with gzip, decode it
+        if (headers["Content-Encoding"] == "gzip")
+        {
+#ifdef IXWEBSOCKET_USE_ZLIB
+            std::string decompressedPayload;
+            if (!gzipDecompress(body, decompressedPayload))
+            {
+                return std::make_tuple(
+                    false, std::string("Error during gzip decompression of the body"), httpRequest);
+            }
+            body = decompressedPayload;
+#else
+            std::string errorMsg("ixwebsocket was not compiled with gzip support on");
+            return std::make_tuple(false, errorMsg, httpRequest);
+#endif
+        }
+
+        httpRequest = std::make_shared<HttpRequest>(uri, method, httpVersion, body, headers);
+        return std::make_tuple(true, "", httpRequest);
+    }
+
+    bool Http::sendResponse(HttpResponsePtr response, std::unique_ptr<Socket>& socket)
+    {
+        // Write the response to the socket
+        std::stringstream ss;
+        ss << "HTTP/1.1 ";
+        ss << response->statusCode;
+        ss << " ";
+        ss << response->description;
+        ss << "\r\n";
+
+        if (!socket->writeBytes(ss.str(), nullptr))
+        {
+            return false;
+        }
+
+        // Write headers
+        ss.str("");
+        ss << "Content-Length: " << response->body.size() << "\r\n";
+        for (auto&& it : response->headers)
+        {
+            ss << it.first << ": " << it.second << "\r\n";
+        }
+        ss << "\r\n";
+
+        if (!socket->writeBytes(ss.str(), nullptr))
+        {
+            return false;
+        }
+
+        return response->body.empty() ? true : socket->writeBytes(response->body, nullptr);
+    }
+} // namespace ix

ixwebsocket/IXHttp.h

@@ -0,0 +1,135 @@
+/*
+ *  IXHttp.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#pragma once
+
+#include "IXProgressCallback.h"
+#include "IXWebSocketHttpHeaders.h"
+#include <atomic>
+#include <cstdint>
+#include <tuple>
+#include <unordered_map>
+
+namespace ix
+{
+    enum class HttpErrorCode : int
+    {
+        Ok = 0,
+        CannotConnect = 1,
+        Timeout = 2,
+        Gzip = 3,
+        UrlMalformed = 4,
+        CannotCreateSocket = 5,
+        SendError = 6,
+        ReadError = 7,
+        CannotReadStatusLine = 8,
+        MissingStatus = 9,
+        HeaderParsingError = 10,
+        MissingLocation = 11,
+        TooManyRedirects = 12,
+        ChunkReadError = 13,
+        CannotReadBody = 14,
+        Cancelled = 15,
+        Invalid = 100
+    };
+
+    struct HttpResponse
+    {
+        int statusCode;
+        std::string description;
+        HttpErrorCode errorCode;
+        WebSocketHttpHeaders headers;
+        std::string body;
+        std::string errorMsg;
+        uint64_t uploadSize;
+        uint64_t downloadSize;
+
+        HttpResponse(int s = 0,
+                     const std::string& des = std::string(),
+                     const HttpErrorCode& c = HttpErrorCode::Ok,
+                     const WebSocketHttpHeaders& h = WebSocketHttpHeaders(),
+                     const std::string& b = std::string(),
+                     const std::string& e = std::string(),
+                     uint64_t u = 0,
+                     uint64_t d = 0)
+            : statusCode(s)
+            , description(des)
+            , errorCode(c)
+            , headers(h)
+            , body(b)
+            , errorMsg(e)
+            , uploadSize(u)
+            , downloadSize(d)
+        {
+            ;
+        }
+    };
+
+    using HttpResponsePtr = std::shared_ptr<HttpResponse>;
+    using HttpParameters = std::unordered_map<std::string, std::string>;
+    using HttpFormDataParameters = std::unordered_map<std::string, std::string>;
+    using Logger = std::function<void(const std::string&)>;
+    using OnResponseCallback = std::function<void(const HttpResponsePtr&)>;
+
+    struct HttpRequestArgs
+    {
+        std::string url;
+        std::string verb;
+        WebSocketHttpHeaders extraHeaders;
+        std::string body;
+        std::string multipartBoundary;
+        int connectTimeout = 60;
+        int transferTimeout = 1800;
+        bool followRedirects = true;
+        int maxRedirects = 5;
+        bool verbose = false;
+        bool compress = true;
+        bool compressRequest = false;
+        Logger logger;
+        OnProgressCallback onProgressCallback;
+        OnChunkCallback onChunkCallback;
+        std::atomic<bool> cancel;
+    };
+
+    using HttpRequestArgsPtr = std::shared_ptr<HttpRequestArgs>;
+
+    struct HttpRequest
+    {
+        std::string uri;
+        std::string method;
+        std::string version;
+        std::string body;
+        WebSocketHttpHeaders headers;
+
+        HttpRequest(const std::string& u,
+                    const std::string& m,
+                    const std::string& v,
+                    const std::string& b,
+                    const WebSocketHttpHeaders& h = WebSocketHttpHeaders())
+            : uri(u)
+            , method(m)
+            , version(v)
+            , body(b)
+            , headers(h)
+        {
+        }
+    };
+
+    using HttpRequestPtr = std::shared_ptr<HttpRequest>;
+
+    class Http
+    {
+    public:
+        static std::tuple<bool, std::string, HttpRequestPtr> parseRequest(
+            std::unique_ptr<Socket>& socket, int timeoutSecs);
+        static bool sendResponse(HttpResponsePtr response, std::unique_ptr<Socket>& socket);
+
+        static std::pair<std::string, int> parseStatusLine(const std::string& line);
+        static std::tuple<std::string, std::string, std::string> parseRequestLine(
+            const std::string& line);
+        static std::string trim(const std::string& str);
+    };
+} // namespace ix

ixwebsocket/IXHttpClient.cpp

@@ -0,0 +1,785 @@
+/*
+ *  IXHttpClient.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#include "IXHttpClient.h"
+
+#include "IXGzipCodec.h"
+#include "IXSocketFactory.h"
+#include "IXUrlParser.h"
+#include "IXUserAgent.h"
+#include "IXWebSocketHttpHeaders.h"
+#include <assert.h>
+#include <cstdint>
+#include <cstring>
+#include <iomanip>
+#include <random>
+#include <sstream>
+#include <vector>
+
+namespace ix
+{
+    // https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods
+    const std::string HttpClient::kPost = "POST";
+    const std::string HttpClient::kGet = "GET";
+    const std::string HttpClient::kHead = "HEAD";
+    const std::string HttpClient::kDelete = "DELETE";
+    const std::string HttpClient::kPut = "PUT";
+    const std::string HttpClient::kPatch = "PATCH";
+
+    HttpClient::HttpClient(bool async)
+        : _async(async)
+        , _stop(false)
+        , _forceBody(false)
+    {
+        if (!_async) return;
+
+        _thread = std::thread(&HttpClient::run, this);
+    }
+
+    HttpClient::~HttpClient()
+    {
+        if (!_thread.joinable()) return;
+
+        _stop = true;
+        _condition.notify_one();
+        _thread.join();
+    }
+
+    void HttpClient::setTLSOptions(const SocketTLSOptions& tlsOptions)
+    {
+        _tlsOptions = tlsOptions;
+    }
+
+    void HttpClient::setForceBody(bool value)
+    {
+        _forceBody = value;
+    }
+
+    HttpRequestArgsPtr HttpClient::createRequest(const std::string& url, const std::string& verb)
+    {
+        auto request = std::make_shared<HttpRequestArgs>();
+        request->url = url;
+        request->verb = verb;
+        return request;
+    }
+
+    bool HttpClient::performRequest(HttpRequestArgsPtr args,
+                                    const OnResponseCallback& onResponseCallback)
+    {
+        assert(_async && "HttpClient needs its async parameter set to true "
+                         "in order to call performRequest");
+        if (!_async) return false;
+
+        // Enqueue the task
+        {
+            // acquire lock
+            std::unique_lock<std::mutex> lock(_queueMutex);
+
+            // add the task
+            _queue.push(std::make_pair(args, onResponseCallback));
+        } // release lock
+
+        // wake up one thread
+        _condition.notify_one();
+
+        return true;
+    }
+
+    void HttpClient::run()
+    {
+        while (true)
+        {
+            HttpRequestArgsPtr args;
+            OnResponseCallback onResponseCallback;
+
+            {
+                std::unique_lock<std::mutex> lock(_queueMutex);
+
+                while (!_stop && _queue.empty())
+                {
+                    _condition.wait(lock);
+                }
+
+                if (_stop) return;
+
+                auto p = _queue.front();
+                _queue.pop();
+
+                args = p.first;
+                onResponseCallback = p.second;
+            }
+
+            if (_stop) return;
+
+            HttpResponsePtr response = request(args->url, args->verb, args->body, args);
+            onResponseCallback(response);
+
+            if (_stop) return;
+        }
+    }
+
+    HttpResponsePtr HttpClient::request(const std::string& url,
+                                        const std::string& verb,
+                                        const std::string& body,
+                                        HttpRequestArgsPtr args,
+                                        int redirects)
+    {
+        // We only have one socket connection, so we cannot
+        // make multiple requests concurrently.
+        std::lock_guard<std::recursive_mutex> lock(_mutex);
+
+        uint64_t uploadSize = 0;
+        uint64_t downloadSize = 0;
+        int code = 0;
+        WebSocketHttpHeaders headers;
+        std::string payload;
+        std::string description;
+
+        std::string protocol, host, path, query;
+        int port;
+        bool isProtocolDefaultPort;
+
+        if (!UrlParser::parse(url, protocol, host, path, query, port, isProtocolDefaultPort))
+        {
+            std::stringstream ss;
+            ss << "Cannot parse url: " << url;
+            return std::make_shared<HttpResponse>(code,
+                                                  description,
+                                                  HttpErrorCode::UrlMalformed,
+                                                  headers,
+                                                  payload,
+                                                  ss.str(),
+                                                  uploadSize,
+                                                  downloadSize);
+        }
+
+        bool tls = protocol == "https";
+        std::string errorMsg;
+        _socket = createSocket(tls, -1, errorMsg, _tlsOptions);
+
+        if (!_socket)
+        {
+            return std::make_shared<HttpResponse>(code,
+                                                  description,
+                                                  HttpErrorCode::CannotCreateSocket,
+                                                  headers,
+                                                  payload,
+                                                  errorMsg,
+                                                  uploadSize,
+                                                  downloadSize);
+        }
+
+        // Build request string
+        std::stringstream ss;
+        ss << verb << " " << path << " HTTP/1.1\r\n";
+        ss << "Host: " << host;
+        if (!isProtocolDefaultPort)
+        {
+            ss << ":" << port;
+        }
+        ss << "\r\n";
+
+#ifdef IXWEBSOCKET_USE_ZLIB
+        if (args->compress && !args->onChunkCallback)
+        {
+            ss << "Accept-Encoding: gzip"
+               << "\r\n";
+        }
+#endif
+
+        // Append extra headers
+        for (auto&& it : args->extraHeaders)
+        {
+            ss << it.first << ": " << it.second << "\r\n";
+        }
+
+        // Set a default Accept header if none is present
+        if (args->extraHeaders.find("Accept") == args->extraHeaders.end())
+        {
+            ss << "Accept: */*"
+               << "\r\n";
+        }
+
+        // Set a default User agent if none is present
+        if (args->extraHeaders.find("User-Agent") == args->extraHeaders.end())
+        {
+            ss << "User-Agent: " << userAgent() << "\r\n";
+        }
+
+        // Set an origin header if missing
+        if (args->extraHeaders.find("Origin") == args->extraHeaders.end())
+        {
+            ss << "Origin: " << protocol << "://" << host << ":" << port << "\r\n";
+        }
+
+        if (verb == kPost || verb == kPut || verb == kPatch || _forceBody)
+        {
+            // Set request compression header
+#ifdef IXWEBSOCKET_USE_ZLIB
+            if (args->compressRequest)
+            {
+                ss << "Content-Encoding: gzip"
+                   << "\r\n";
+            }
+#endif
+
+            ss << "Content-Length: " << body.size() << "\r\n";
+
+            // Set default Content-Type if unspecified
+            if (args->extraHeaders.find("Content-Type") == args->extraHeaders.end())
+            {
+                if (args->multipartBoundary.empty())
+                {
+                    ss << "Content-Type: application/x-www-form-urlencoded"
+                       << "\r\n";
+                }
+                else
+                {
+                    ss << "Content-Type: multipart/form-data; boundary=" << args->multipartBoundary
+                       << "\r\n";
+                }
+            }
+            ss << "\r\n";
+            ss << body;
+        }
+        else
+        {
+            ss << "\r\n";
+        }
+
+        std::string req(ss.str());
+        std::string errMsg;
+
+        // Make a cancellation object dealing with connection timeout
+        auto cancelled = makeCancellationRequestWithTimeout(args->connectTimeout, args->cancel);
+
+        auto isCancellationRequested = [&]() {
+            return cancelled() || _stop;
+        };
+
+        bool success = _socket->connect(host, port, errMsg, isCancellationRequested);
+        if (!success)
+        {
+            auto errorCode = args->cancel ? HttpErrorCode::Cancelled : HttpErrorCode::CannotConnect;
+            std::stringstream ss;
+            ss << "Cannot connect to url: " << url << " / error : " << errMsg;
+            return std::make_shared<HttpResponse>(code,
+                                                  description,
+                                                  errorCode,
+                                                  headers,
+                                                  payload,
+                                                  ss.str(),
+                                                  uploadSize,
+                                                  downloadSize);
+        }
+
+        // Make a new cancellation object dealing with transfer timeout
+        cancelled = makeCancellationRequestWithTimeout(args->transferTimeout, args->cancel);
+
+        if (args->verbose)
+        {
+            std::stringstream ss;
+            ss << "Sending " << verb << " request "
+               << "to " << host << ":" << port << std::endl
+               << "request size: " << req.size() << " bytes" << std::endl
+               << "=============" << std::endl
+               << req << "=============" << std::endl
+               << std::endl;
+
+            log(ss.str(), args);
+        }
+
+        if (!_socket->writeBytes(req, isCancellationRequested))
+        {
+            auto errorCode = args->cancel ? HttpErrorCode::Cancelled : HttpErrorCode::SendError;
+            std::string errorMsg("Cannot send request");
+            return std::make_shared<HttpResponse>(code,
+                                                  description,
+                                                  errorCode,
+                                                  headers,
+                                                  payload,
+                                                  errorMsg,
+                                                  uploadSize,
+                                                  downloadSize);
+        }
+
+        uploadSize = req.size();
+
+        auto lineResult = _socket->readLine(isCancellationRequested);
+        auto lineValid = lineResult.first;
+        auto line = lineResult.second;
+
+        if (!lineValid)
+        {
+            auto errorCode = args->cancel ? HttpErrorCode::Cancelled : HttpErrorCode::CannotReadStatusLine;
+            std::string errorMsg("Cannot retrieve status line");
+            return std::make_shared<HttpResponse>(code,
+                                                  description,
+                                                  errorCode,
+                                                  headers,
+                                                  payload,
+                                                  errorMsg,
+                                                  uploadSize,
+                                                  downloadSize);
+        }
+
+        if (args->verbose)
+        {
+            std::stringstream ss;
+            ss << "Status line " << line;
+            log(ss.str(), args);
+        }
+
+        if (sscanf(line.c_str(), "HTTP/1.1 %d", &code) != 1)
+        {
+            std::string errorMsg("Cannot parse response code from status line");
+            return std::make_shared<HttpResponse>(code,
+                                                  description,
+                                                  HttpErrorCode::MissingStatus,
+                                                  headers,
+                                                  payload,
+                                                  errorMsg,
+                                                  uploadSize,
+                                                  downloadSize);
+        }
+
+        auto result = parseHttpHeaders(_socket, isCancellationRequested);
+        auto headersValid = result.first;
+        headers = result.second;
+
+        if (!headersValid)
+        {
+            auto errorCode = args->cancel ? HttpErrorCode::Cancelled : HttpErrorCode::HeaderParsingError;
+            std::string errorMsg("Cannot parse http headers");
+            return std::make_shared<HttpResponse>(code,
+                                                  description,
+                                                  errorCode,
+                                                  headers,
+                                                  payload,
+                                                  errorMsg,
+                                                  uploadSize,
+                                                  downloadSize);
+        }
+
+        // Redirect ?
+        if ((code >= 301 && code <= 308) && args->followRedirects)
+        {
+            if (headers.find("Location") == headers.end())
+            {
+                std::string errorMsg("Missing location header for redirect");
+                return std::make_shared<HttpResponse>(code,
+                                                      description,
+                                                      HttpErrorCode::MissingLocation,
+                                                      headers,
+                                                      payload,
+                                                      errorMsg,
+                                                      uploadSize,
+                                                      downloadSize);
+            }
+
+            if (redirects >= args->maxRedirects)
+            {
+                std::stringstream ss;
+                ss << "Too many redirects: " << redirects;
+                return std::make_shared<HttpResponse>(code,
+                                                      description,
+                                                      HttpErrorCode::TooManyRedirects,
+                                                      headers,
+                                                      payload,
+                                                      ss.str(),
+                                                      uploadSize,
+                                                      downloadSize);
+            }
+
+            // Recurse
+            std::string location = headers["Location"];
+            return request(location, verb, body, args, redirects + 1);
+        }
+
+        if (verb == "HEAD")
+        {
+            return std::make_shared<HttpResponse>(code,
+                                                  description,
+                                                  HttpErrorCode::Ok,
+                                                  headers,
+                                                  payload,
+                                                  std::string(),
+                                                  uploadSize,
+                                                  downloadSize);
+        }
+
+        // Parse response:
+        if (headers.find("Content-Length") != headers.end())
+        {
+            ssize_t contentLength = -1;
+            ss.str("");
+            ss << headers["Content-Length"];
+            ss >> contentLength;
+
+            auto chunkResult = _socket->readBytes(contentLength,
+                                                  args->onProgressCallback,
+                                                  args->onChunkCallback,
+                                                  isCancellationRequested);
+            if (!chunkResult.first)
+            {
+                auto errorCode = args->cancel ? HttpErrorCode::Cancelled : HttpErrorCode::ChunkReadError;
+                errorMsg = "Cannot read chunk";
+                return std::make_shared<HttpResponse>(code,
+                                                      description,
+                                                      errorCode,
+                                                      headers,
+                                                      payload,
+                                                      errorMsg,
+                                                      uploadSize,
+                                                      downloadSize);
+            }
+
+            if (!args->onChunkCallback)
+            {
+                payload.reserve(contentLength);
+                payload += chunkResult.second;
+            }
+        }
+        else if (headers.find("Transfer-Encoding") != headers.end() &&
+                 headers["Transfer-Encoding"] == "chunked")
+        {
+            std::stringstream ss;
+
+            while (true)
+            {
+                auto errorCode = args->cancel ? HttpErrorCode::Cancelled : HttpErrorCode::ChunkReadError;
+                lineResult = _socket->readLine(isCancellationRequested);
+                line = lineResult.second;
+
+                if (!lineResult.first)
+                {
+                    return std::make_shared<HttpResponse>(code,
+                                                          description,
+                                                          errorCode,
+                                                          headers,
+                                                          payload,
+                                                          errorMsg,
+                                                          uploadSize,
+                                                          downloadSize);
+                }
+
+                uint64_t chunkSize;
+                ss.str("");
+                ss << std::hex << line;
+                ss >> chunkSize;
+
+                if (args->verbose)
+                {
+                    std::stringstream oss;
+                    oss << "Reading " << chunkSize << " bytes" << std::endl;
+                    log(oss.str(), args);
+                }
+
+                // Read a chunk
+                auto chunkResult = _socket->readBytes((size_t) chunkSize,
+                                                      args->onProgressCallback,
+                                                      args->onChunkCallback,
+                                                      isCancellationRequested);
+                if (!chunkResult.first)
+                {
+                    auto errorCode = args->cancel ? HttpErrorCode::Cancelled : HttpErrorCode::ChunkReadError;
+                    errorMsg = "Cannot read chunk";
+                    return std::make_shared<HttpResponse>(code,
+                                                          description,
+                                                          errorCode,
+                                                          headers,
+                                                          payload,
+                                                          errorMsg,
+                                                          uploadSize,
+                                                          downloadSize);
+                }
+
+                if (!args->onChunkCallback)
+                {
+                    payload.reserve(payload.size() + (size_t) chunkSize);
+                    payload += chunkResult.second;
+                }
+
+                // Read the line that terminates the chunk (\r\n)
+                lineResult = _socket->readLine(isCancellationRequested);
+
+                if (!lineResult.first)
+                {
+                    auto errorCode = args->cancel ? HttpErrorCode::Cancelled : HttpErrorCode::ChunkReadError;
+                    return std::make_shared<HttpResponse>(code,
+                                                          description,
+                                                          errorCode,
+                                                          headers,
+                                                          payload,
+                                                          errorMsg,
+                                                          uploadSize,
+                                                          downloadSize);
+                }
+
+                if (chunkSize == 0) break;
+            }
+        }
+        else if (code == 204)
+        {
+            ; // 204 is NoContent response code
+        }
+        else
+        {
+            std::string errorMsg("Cannot read http body");
+            return std::make_shared<HttpResponse>(code,
+                                                  description,
+                                                  HttpErrorCode::CannotReadBody,
+                                                  headers,
+                                                  payload,
+                                                  errorMsg,
+                                                  uploadSize,
+                                                  downloadSize);
+        }
+
+        downloadSize = payload.size();
+
+        // If the content was compressed with gzip, decode it
+        if (headers["Content-Encoding"] == "gzip")
+        {
+#ifdef IXWEBSOCKET_USE_ZLIB
+            std::string decompressedPayload;
+            if (!gzipDecompress(payload, decompressedPayload))
+            {
+                std::string errorMsg("Error decompressing payload");
+                return std::make_shared<HttpResponse>(code,
+                                                      description,
+                                                      HttpErrorCode::Gzip,
+                                                      headers,
+                                                      payload,
+                                                      errorMsg,
+                                                      uploadSize,
+                                                      downloadSize);
+            }
+            payload = decompressedPayload;
+#else
+            std::string errorMsg("ixwebsocket was not compiled with gzip support on");
+            return std::make_shared<HttpResponse>(code,
+                                                  description,
+                                                  HttpErrorCode::Gzip,
+                                                  headers,
+                                                  payload,
+                                                  errorMsg,
+                                                  uploadSize,
+                                                  downloadSize);
+#endif
+        }
+
+        return std::make_shared<HttpResponse>(code,
+                                              description,
+                                              HttpErrorCode::Ok,
+                                              headers,
+                                              payload,
+                                              std::string(),
+                                              uploadSize,
+                                              downloadSize);
+    }
+
+    HttpResponsePtr HttpClient::get(const std::string& url, HttpRequestArgsPtr args)
+    {
+        return request(url, kGet, std::string(), args);
+    }
+
+    HttpResponsePtr HttpClient::head(const std::string& url, HttpRequestArgsPtr args)
+    {
+        return request(url, kHead, std::string(), args);
+    }
+
+    HttpResponsePtr HttpClient::Delete(const std::string& url, HttpRequestArgsPtr args)
+    {
+        return request(url, kDelete, std::string(), args);
+    }
+
+    HttpResponsePtr HttpClient::request(const std::string& url,
+                                        const std::string& verb,
+                                        const HttpParameters& httpParameters,
+                                        const HttpFormDataParameters& httpFormDataParameters,
+                                        HttpRequestArgsPtr args)
+    {
+        std::string body;
+
+        if (httpFormDataParameters.empty())
+        {
+            body = serializeHttpParameters(httpParameters);
+        }
+        else
+        {
+            std::string multipartBoundary = generateMultipartBoundary();
+            args->multipartBoundary = multipartBoundary;
+            body = serializeHttpFormDataParameters(
+                multipartBoundary, httpFormDataParameters, httpParameters);
+        }
+
+#ifdef IXWEBSOCKET_USE_ZLIB
+        if (args->compressRequest)
+        {
+            body = gzipCompress(body);
+        }
+#endif
+
+        return request(url, verb, body, args);
+    }
+
+    HttpResponsePtr HttpClient::post(const std::string& url,
+                                     const HttpParameters& httpParameters,
+                                     const HttpFormDataParameters& httpFormDataParameters,
+                                     HttpRequestArgsPtr args)
+    {
+        return request(url, kPost, httpParameters, httpFormDataParameters, args);
+    }
+
+    HttpResponsePtr HttpClient::post(const std::string& url,
+                                     const std::string& body,
+                                     HttpRequestArgsPtr args)
+    {
+        return request(url, kPost, body, args);
+    }
+
+    HttpResponsePtr HttpClient::put(const std::string& url,
+                                    const HttpParameters& httpParameters,
+                                    const HttpFormDataParameters& httpFormDataParameters,
+                                    HttpRequestArgsPtr args)
+    {
+        return request(url, kPut, httpParameters, httpFormDataParameters, args);
+    }
+
+    HttpResponsePtr HttpClient::put(const std::string& url,
+                                    const std::string& body,
+                                    const HttpRequestArgsPtr args)
+    {
+        return request(url, kPut, body, args);
+    }
+
+    HttpResponsePtr HttpClient::patch(const std::string& url,
+                                      const HttpParameters& httpParameters,
+                                      const HttpFormDataParameters& httpFormDataParameters,
+                                      HttpRequestArgsPtr args)
+    {
+        return request(url, kPatch, httpParameters, httpFormDataParameters, args);
+    }
+
+    HttpResponsePtr HttpClient::patch(const std::string& url,
+                                      const std::string& body,
+                                      const HttpRequestArgsPtr args)
+    {
+        return request(url, kPatch, body, args);
+    }
+
+    std::string HttpClient::urlEncode(const std::string& value)
+    {
+        std::ostringstream escaped;
+        escaped.fill('0');
+        escaped << std::hex;
+
+        for (std::string::const_iterator i = value.begin(), n = value.end(); i != n; ++i)
+        {
+            std::string::value_type c = (*i);
+
+            // Keep alphanumeric and other accepted characters intact
+            if (isalnum(c) || c == '-' || c == '_' || c == '.' || c == '~')
+            {
+                escaped << c;
+                continue;
+            }
+
+            // Any other characters are percent-encoded
+            escaped << std::uppercase;
+            escaped << '%' << std::setw(2) << int((unsigned char) c);
+            escaped << std::nouppercase;
+        }
+
+        return escaped.str();
+    }
+
+    std::string HttpClient::serializeHttpParameters(const HttpParameters& httpParameters)
+    {
+        std::stringstream ss;
+        size_t count = httpParameters.size();
+        size_t i = 0;
+
+        for (auto&& it : httpParameters)
+        {
+            ss << urlEncode(it.first) << "=" << urlEncode(it.second);
+
+            if (i++ < (count - 1))
+            {
+                ss << "&";
+            }
+        }
+        return ss.str();
+    }
+
+    std::string HttpClient::serializeHttpFormDataParameters(
+        const std::string& multipartBoundary,
+        const HttpFormDataParameters& httpFormDataParameters,
+        const HttpParameters& httpParameters)
+    {
+        //
+        // --AaB03x
+        // Content-Disposition: form-data; name="submit-name"
+
+        // Larry
+        // --AaB03x
+        // Content-Disposition: form-data; name="foo.txt"; filename="file1.txt"
+        // Content-Type: text/plain
+
+        // ... contents of file1.txt ...
+        // --AaB03x--
+        //
+        std::stringstream ss;
+
+        for (auto&& it : httpFormDataParameters)
+        {
+            ss << "--" << multipartBoundary << "\r\n"
+               << "Content-Disposition:"
+               << " form-data; name=\"" << it.first << "\";"
+               << " filename=\"" << it.first << "\""
+               << "\r\n"
+               << "Content-Type: application/octet-stream"
+               << "\r\n"
+               << "\r\n"
+               << it.second << "\r\n";
+        }
+
+        for (auto&& it : httpParameters)
+        {
+            ss << "--" << multipartBoundary << "\r\n"
+               << "Content-Disposition:"
+               << " form-data; name=\"" << it.first << "\";"
+               << "\r\n"
+               << "\r\n"
+               << it.second << "\r\n";
+        }
+
+        ss << "--" << multipartBoundary << "--\r\n";
+
+        return ss.str();
+    }
+
+    void HttpClient::log(const std::string& msg, HttpRequestArgsPtr args)
+    {
+        if (args->logger)
+        {
+            args->logger(msg);
+        }
+    }
+
+    std::string HttpClient::generateMultipartBoundary()
+    {
+        std::string str("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz");
+
+        static std::random_device rd;
+        static std::mt19937 generator(rd());
+
+        std::shuffle(str.begin(), str.end(), generator);
+
+        return str;
+    }
+} // namespace ix

ixwebsocket/IXHttpClient.h

@@ -0,0 +1,123 @@
+/*
+ *  IXHttpClient.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#pragma once
+
+#include "IXHttp.h"
+#include "IXSocket.h"
+#include "IXSocketTLSOptions.h"
+#include "IXWebSocketHttpHeaders.h"
+#include <algorithm>
+#include <atomic>
+#include <condition_variable>
+#include <functional>
+#include <map>
+#include <memory>
+#include <mutex>
+#include <queue>
+#include <thread>
+
+namespace ix
+{
+    class HttpClient
+    {
+    public:
+        HttpClient(bool async = false);
+        ~HttpClient();
+
+        HttpResponsePtr get(const std::string& url, HttpRequestArgsPtr args);
+        HttpResponsePtr head(const std::string& url, HttpRequestArgsPtr args);
+        HttpResponsePtr Delete(const std::string& url, HttpRequestArgsPtr args);
+
+        HttpResponsePtr post(const std::string& url,
+                             const HttpParameters& httpParameters,
+                             const HttpFormDataParameters& httpFormDataParameters,
+                             HttpRequestArgsPtr args);
+        HttpResponsePtr post(const std::string& url,
+                             const std::string& body,
+                             HttpRequestArgsPtr args);
+
+        HttpResponsePtr put(const std::string& url,
+                            const HttpParameters& httpParameters,
+                            const HttpFormDataParameters& httpFormDataParameters,
+                            HttpRequestArgsPtr args);
+        HttpResponsePtr put(const std::string& url,
+                            const std::string& body,
+                            HttpRequestArgsPtr args);
+
+        HttpResponsePtr patch(const std::string& url,
+                              const HttpParameters& httpParameters,
+                              const HttpFormDataParameters& httpFormDataParameters,
+                              HttpRequestArgsPtr args);
+        HttpResponsePtr patch(const std::string& url,
+                              const std::string& body,
+                              HttpRequestArgsPtr args);
+
+        HttpResponsePtr request(const std::string& url,
+                                const std::string& verb,
+                                const std::string& body,
+                                HttpRequestArgsPtr args,
+                                int redirects = 0);
+
+        HttpResponsePtr request(const std::string& url,
+                                const std::string& verb,
+                                const HttpParameters& httpParameters,
+                                const HttpFormDataParameters& httpFormDataParameters,
+                                HttpRequestArgsPtr args);
+
+        void setForceBody(bool value);
+
+        // Async API
+        HttpRequestArgsPtr createRequest(const std::string& url = std::string(),
+                                         const std::string& verb = HttpClient::kGet);
+
+        bool performRequest(HttpRequestArgsPtr request,
+                            const OnResponseCallback& onResponseCallback);
+
+        // TLS
+        void setTLSOptions(const SocketTLSOptions& tlsOptions);
+
+        std::string serializeHttpParameters(const HttpParameters& httpParameters);
+
+        std::string serializeHttpFormDataParameters(
+            const std::string& multipartBoundary,
+            const HttpFormDataParameters& httpFormDataParameters,
+            const HttpParameters& httpParameters = HttpParameters());
+
+        std::string generateMultipartBoundary();
+
+        std::string urlEncode(const std::string& value);
+
+        const static std::string kPost;
+        const static std::string kGet;
+        const static std::string kHead;
+        const static std::string kDelete;
+        const static std::string kPut;
+        const static std::string kPatch;
+
+    private:
+        void log(const std::string& msg, HttpRequestArgsPtr args);
+
+        // Async API background thread runner
+        void run();
+        // Async API
+        bool _async;
+        std::queue<std::pair<HttpRequestArgsPtr, OnResponseCallback>> _queue;
+        mutable std::mutex _queueMutex;
+        std::condition_variable _condition;
+        std::atomic<bool> _stop;
+        std::thread _thread;
+
+        std::unique_ptr<Socket> _socket;
+        std::recursive_mutex _mutex; // to protect accessing the _socket (only one socket per
+                                     // client) the mutex needs to be recursive as this function
+                                     // might be called recursively to follow HTTP redirections
+
+        SocketTLSOptions _tlsOptions;
+
+        bool _forceBody;
+    };
+} // namespace ix

ixwebsocket/IXHttpServer.cpp

@@ -0,0 +1,244 @@
+/*
+ *  IXHttpServer.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#include "IXHttpServer.h"
+
+#include "IXGzipCodec.h"
+#include "IXNetSystem.h"
+#include "IXSocketConnect.h"
+#include "IXUserAgent.h"
+#include <cstdint>
+#include <cstring>
+#include <fstream>
+#include <sstream>
+#include <vector>
+
+namespace
+{
+    std::pair<bool, std::vector<uint8_t>> load(const std::string& path)
+    {
+        std::vector<uint8_t> memblock;
+
+        std::ifstream file(path);
+        if (!file.is_open()) return std::make_pair(false, memblock);
+
+        file.seekg(0, file.end);
+        std::streamoff size = file.tellg();
+        file.seekg(0, file.beg);
+
+        memblock.resize((size_t) size);
+        file.read((char*) &memblock.front(), static_cast<std::streamsize>(size));
+
+        return std::make_pair(true, memblock);
+    }
+
+    std::pair<bool, std::string> readAsString(const std::string& path)
+    {
+        auto res = load(path);
+        auto vec = res.second;
+        return std::make_pair(res.first, std::string(vec.begin(), vec.end()));
+    }
+
+    std::string response_head_file(const std::string& file_name){
+
+        if (std::string::npos != file_name.find(".html") || std::string::npos != file_name.find(".htm"))
+            return "text/html";
+        else if (std::string::npos != file_name.find(".css"))
+            return "text/css";
+        else if (std::string::npos != file_name.find(".js") || std::string::npos != file_name.find(".mjs"))
+            return "application/x-javascript";
+        else if (std::string::npos != file_name.find(".ico"))
+            return "image/x-icon";
+        else if (std::string::npos != file_name.find(".png"))
+            return "image/png";
+        else if (std::string::npos != file_name.find(".jpg") || std::string::npos != file_name.find(".jpeg"))
+            return "image/jpeg";
+        else if (std::string::npos != file_name.find(".gif"))
+            return "image/gif";
+        else if (std::string::npos != file_name.find(".svg"))
+            return "image/svg+xml";
+        else
+            return "application/octet-stream";
+    }
+
+} // namespace
+
+namespace ix
+{
+    const int HttpServer::kDefaultTimeoutSecs(30);
+
+    HttpServer::HttpServer(int port,
+                           const std::string& host,
+                           int backlog,
+                           size_t maxConnections,
+                           int addressFamily,
+                           int timeoutSecs,
+                           int handshakeTimeoutSecs)
+        : WebSocketServer(port, host, backlog, maxConnections, handshakeTimeoutSecs, addressFamily)
+        , _timeoutSecs(timeoutSecs)
+    {
+        setDefaultConnectionCallback();
+    }
+
+    void HttpServer::setOnConnectionCallback(const OnConnectionCallback& callback)
+    {
+        _onConnectionCallback = callback;
+    }
+
+    void HttpServer::handleConnection(std::unique_ptr<Socket> socket,
+                                      std::shared_ptr<ConnectionState> connectionState)
+    {
+        auto ret = Http::parseRequest(socket, _timeoutSecs);
+        // FIXME: handle errors in parseRequest
+
+        if (std::get<0>(ret))
+        {
+            auto request = std::get<2>(ret);
+            std::shared_ptr<ix::HttpResponse> response;
+            if (request->headers["Upgrade"] == "websocket")
+            {
+                WebSocketServer::handleUpgrade(std::move(socket), connectionState, request);
+            }
+            else
+            {
+                auto response = _onConnectionCallback(request, connectionState);
+                if (!Http::sendResponse(response, socket))
+                {
+                    logError("Cannot send response");
+                }
+            }
+        }
+        connectionState->setTerminated();
+    }
+
+    void HttpServer::setDefaultConnectionCallback()
+    {
+        setOnConnectionCallback(
+            [this](HttpRequestPtr request,
+                   std::shared_ptr<ConnectionState> connectionState) -> HttpResponsePtr
+            {
+                std::string uri(request->uri);
+                if (uri.empty() || uri == "/")
+                {
+                    uri = "/index.html";
+                }
+
+                WebSocketHttpHeaders headers;
+                headers["Server"] = userAgent();
+                headers["Content-Type"] = response_head_file(uri);
+
+                std::string path("." + uri);
+                auto res = readAsString(path);
+                bool found = res.first;
+                if (!found)
+                {
+                    return std::make_shared<HttpResponse>(
+                        404, "Not Found", HttpErrorCode::Ok, WebSocketHttpHeaders(), std::string());
+                }
+
+                std::string content = res.second;
+
+#ifdef IXWEBSOCKET_USE_ZLIB
+                std::string acceptEncoding = request->headers["Accept-encoding"];
+                if (acceptEncoding == "*" || acceptEncoding.find("gzip") != std::string::npos)
+                {
+                    content = gzipCompress(content);
+                    headers["Content-Encoding"] = "gzip";
+                }
+                headers["Accept-Encoding"] = "gzip";
+#endif
+
+                // Log request
+                std::stringstream ss;
+                ss << connectionState->getRemoteIp() << ":" << connectionState->getRemotePort()
+                   << " " << request->method << " " << request->headers["User-Agent"] << " "
+                   << request->uri << " " << content.size();
+                logInfo(ss.str());
+
+                // FIXME: check extensions to set the content type
+                // headers["Content-Type"] = "application/octet-stream";
+                headers["Accept-Ranges"] = "none";
+
+                return std::make_shared<HttpResponse>(
+                    200, "OK", HttpErrorCode::Ok, headers, content);
+            });
+    }
+
+    void HttpServer::makeRedirectServer(const std::string& redirectUrl)
+    {
+        //
+        // See https://developer.mozilla.org/en-US/docs/Web/HTTP/Redirections
+        //
+        setOnConnectionCallback(
+            [this, redirectUrl](HttpRequestPtr request,
+                                std::shared_ptr<ConnectionState> connectionState) -> HttpResponsePtr
+            {
+                WebSocketHttpHeaders headers;
+                headers["Server"] = userAgent();
+
+                // Log request
+                std::stringstream ss;
+                ss << connectionState->getRemoteIp() << ":" << connectionState->getRemotePort()
+                   << " " << request->method << " " << request->headers["User-Agent"] << " "
+                   << request->uri;
+                logInfo(ss.str());
+
+                if (request->method == "POST")
+                {
+                    return std::make_shared<HttpResponse>(
+                        200, "OK", HttpErrorCode::Ok, headers, std::string());
+                }
+
+                headers["Location"] = redirectUrl;
+
+                return std::make_shared<HttpResponse>(
+                    301, "OK", HttpErrorCode::Ok, headers, std::string());
+            });
+    }
+
+    //
+    // Display the client parameter and body on the console
+    //
+    void HttpServer::makeDebugServer()
+    {
+        setOnConnectionCallback(
+            [this](HttpRequestPtr request,
+                   std::shared_ptr<ConnectionState> connectionState) -> HttpResponsePtr
+            {
+                WebSocketHttpHeaders headers;
+                headers["Server"] = userAgent();
+
+                // Log request
+                std::stringstream ss;
+                ss << connectionState->getRemoteIp() << ":" << connectionState->getRemotePort()
+                   << " " << request->method << " " << request->headers["User-Agent"] << " "
+                   << request->uri;
+                logInfo(ss.str());
+
+                logInfo("== Headers == ");
+                for (auto&& it : request->headers)
+                {
+                    std::ostringstream oss;
+                    oss << it.first << ": " << it.second;
+                    logInfo(oss.str());
+                }
+                logInfo("");
+
+                logInfo("== Body == ");
+                logInfo(request->body);
+                logInfo("");
+
+                return std::make_shared<HttpResponse>(
+                    200, "OK", HttpErrorCode::Ok, headers, std::string("OK"));
+            });
+    }
+
+    int HttpServer::getTimeoutSecs()
+    {
+        return _timeoutSecs;
+    }
+
+} // namespace ix

ixwebsocket/IXHttpServer.h

@@ -0,0 +1,57 @@
+/*
+ *  IXHttpServer.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+ */
+
+#pragma once
+
+#include "IXHttp.h"
+#include "IXWebSocket.h"
+#include "IXWebSocketServer.h"
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <set>
+#include <string>
+#include <thread>
+#include <utility> // pair
+
+namespace ix
+{
+    class HttpServer final : public WebSocketServer
+    {
+    public:
+        using OnConnectionCallback =
+            std::function<HttpResponsePtr(HttpRequestPtr, std::shared_ptr<ConnectionState>)>;
+
+        HttpServer(int port = SocketServer::kDefaultPort,
+                   const std::string& host = SocketServer::kDefaultHost,
+                   int backlog = SocketServer::kDefaultTcpBacklog,
+                   size_t maxConnections = SocketServer::kDefaultMaxConnections,
+                   int addressFamily = SocketServer::kDefaultAddressFamily,
+                   int timeoutSecs = HttpServer::kDefaultTimeoutSecs,
+                   int handshakeTimeoutSecs = WebSocketServer::kDefaultHandShakeTimeoutSecs);
+
+        void setOnConnectionCallback(const OnConnectionCallback& callback);
+
+        void makeRedirectServer(const std::string& redirectUrl);
+
+        void makeDebugServer();
+
+        int getTimeoutSecs();
+
+    private:
+        // Member variables
+        OnConnectionCallback _onConnectionCallback;
+
+        const static int kDefaultTimeoutSecs;
+        int _timeoutSecs;
+
+        // Methods
+        virtual void handleConnection(std::unique_ptr<Socket>,
+                                      std::shared_ptr<ConnectionState> connectionState) final;
+
+        void setDefaultConnectionCallback();
+    };
+} // namespace ix

ixwebsocket/IXNetSystem.cpp

@@ -0,0 +1,461 @@
+/*
+ *  IXNetSystem.cpp
+ *  Author: Korchynskyi Dmytro
+ *  Copyright (c) 2019 Machine Zone. All rights reserved.
+ */
+
+#include "IXNetSystem.h"
+#include <cstdint>
+#include <cstdio>
+#ifdef _WIN32
+#ifndef EAFNOSUPPORT
+  #define EAFNOSUPPORT 102
+#endif
+#ifndef ENOSPC
+  #define ENOSPC 28
+#endif
+#include <vector>
+#endif
+
+namespace ix
+{
+    bool initNetSystem()
+    {
+#ifdef _WIN32
+        WORD wVersionRequested;
+        WSADATA wsaData;
+        int err;
+
+        // Use the MAKEWORD(lowbyte, highbyte) macro declared in Windef.h
+        wVersionRequested = MAKEWORD(2, 2);
+        err = WSAStartup(wVersionRequested, &wsaData);
+
+        return err == 0;
+#else
+        return true;
+#endif
+    }
+
+    bool uninitNetSystem()
+    {
+#ifdef _WIN32
+        int err = WSACleanup();
+        return err == 0;
+#else
+        return true;
+#endif
+    }
+
+#ifdef _WIN32
+    struct WSAEvent
+    {
+    public:
+        WSAEvent(struct pollfd* fd)
+            : _fd(fd)
+        {
+            _event = WSACreateEvent();
+        }
+
+        WSAEvent(WSAEvent&& source) noexcept
+        {
+            _event = source._event;
+            source._event = WSA_INVALID_EVENT; // invalidate the event in the source
+            _fd = source._fd;
+        }
+
+        ~WSAEvent()
+        {
+            if (_event != WSA_INVALID_EVENT)
+            {
+                // We must deselect the networkevents from the socket event. Otherwise the
+                // socket will report states that aren't there.
+                if (_fd != nullptr && (int)_fd->fd != -1)
+                    WSAEventSelect(_fd->fd, _event, 0);
+                WSACloseEvent(_event);
+            }
+        }
+
+        operator HANDLE()
+        {
+            return _event;
+        }
+
+        operator struct pollfd*()
+        {
+            return _fd;
+        }
+
+    private:
+        HANDLE _event;
+        struct pollfd* _fd;
+    };
+#endif
+
+    //
+    // That function could 'return WSAPoll(pfd, nfds, timeout);'
+    // but WSAPoll is said to have weird behaviors on the internet
+    // (the curl folks have had problems with it).
+    //
+    // So we make it a select wrapper
+    //
+    // UPDATE: WSAPoll was fixed in Windows 10 Version 2004
+    //
+    // The optional "event" is set to nullptr if it wasn't signaled.
+    int poll(struct pollfd* fds, nfds_t nfds, int timeout, void** event)
+    {
+#ifdef _WIN32
+
+        if (event && *event)
+        {
+            HANDLE interruptEvent = reinterpret_cast<HANDLE>(*event);
+            *event = nullptr; // the event wasn't signaled yet
+
+            if (nfds < 0 || nfds >= MAXIMUM_WAIT_OBJECTS - 1)
+            {
+                WSASetLastError(WSAEINVAL);
+                return SOCKET_ERROR;
+            }
+
+            std::vector<WSAEvent> socketEvents;
+            std::vector<HANDLE> handles;
+            // put the interrupt event as first element, making it highest priority
+            handles.push_back(interruptEvent);
+
+            // create the WSAEvents for the sockets
+            for (nfds_t i = 0; i < nfds; ++i)
+            {
+                struct pollfd* fd = &fds[i];
+                fd->revents = 0;
+                if (fd->fd >= 0)
+                {
+                    // create WSAEvent and add it to the vectors
+                    socketEvents.push_back(std::move(WSAEvent(fd)));
+                    HANDLE handle = socketEvents.back();
+                    if (handle == WSA_INVALID_EVENT)
+                    {
+                        WSASetLastError(WSAENOBUFS);
+                        return SOCKET_ERROR;
+                    }
+                    handles.push_back(handle);
+
+                    // mapping
+                    long networkEvents = 0;
+                    if (fd->events & (POLLIN                               )) networkEvents |= FD_READ  | FD_ACCEPT;
+                    if (fd->events & (POLLOUT /*| POLLWRNORM | POLLWRBAND*/)) networkEvents |= FD_WRITE | FD_CONNECT;
+                    //if (fd->events & (POLLPRI | POLLRDBAND               )) networkEvents |= FD_OOB;
+
+                    if (WSAEventSelect(fd->fd, handle, networkEvents) != 0)
+                    {
+                        fd->revents = POLLNVAL;
+                        socketEvents.pop_back();
+                        handles.pop_back();
+                    }
+                }
+            }
+
+            DWORD n = WSAWaitForMultipleEvents(handles.size(), handles.data(), FALSE, timeout != -1 ? static_cast<DWORD>(timeout) : WSA_INFINITE, FALSE);
+
+            if (n == WSA_WAIT_FAILED) return SOCKET_ERROR;
+            if (n == WSA_WAIT_TIMEOUT) return 0;
+            if (n == WSA_WAIT_EVENT_0)
+            {
+                // the interrupt event was signaled
+                *event = reinterpret_cast<void*>(interruptEvent);
+                return 1;
+            }
+
+            int handleIndex = n - WSA_WAIT_EVENT_0;
+            int socketIndex = handleIndex - 1;
+
+            WSANETWORKEVENTS netEvents;
+            int count = 0;
+            // WSAWaitForMultipleEvents returns the index of the first signaled event. And to emulate WSAPoll()
+            // all the signaled events must be processed.
+            while (socketIndex < (int)socketEvents.size())
+            {
+                struct pollfd* fd = socketEvents[socketIndex];
+
+                memset(&netEvents, 0, sizeof(netEvents));
+                if (WSAEnumNetworkEvents(fd->fd, socketEvents[socketIndex], &netEvents) != 0)
+                {
+                    fd->revents = POLLERR;
+                }
+                else if (netEvents.lNetworkEvents != 0)
+                {
+                    // mapping
+                    if (netEvents.lNetworkEvents & (FD_READ  | FD_ACCEPT | FD_OOB)) fd->revents |= POLLIN;
+                    if (netEvents.lNetworkEvents & (FD_WRITE | FD_CONNECT        )) fd->revents |= POLLOUT;
+
+                    for (int i = 0; i < FD_MAX_EVENTS; ++i)
+                    {
+                        if (netEvents.iErrorCode[i] != 0)
+                        {
+                            fd->revents |= POLLERR;
+                            break;
+                        }
+                    }
+
+                    if (fd->revents != 0)
+                    {
+                        // only signaled sockets count
+                        count++;
+                    }
+                }
+                socketIndex++;
+            }
+
+            return count;
+        }
+        else
+        {
+            if (event && *event) *event = nullptr;
+
+            socket_t maxfd = 0;
+            fd_set readfds, writefds, errorfds;
+            FD_ZERO(&readfds);
+            FD_ZERO(&writefds);
+            FD_ZERO(&errorfds);
+
+            for (nfds_t i = 0; i < nfds; ++i)
+            {
+                struct pollfd* fd = &fds[i];
+
+                if (fd->fd > maxfd)
+                {
+                    maxfd = fd->fd;
+                }
+                if ((fd->events & POLLIN))
+                {
+                    FD_SET(fd->fd, &readfds);
+                }
+                if ((fd->events & POLLOUT))
+                {
+                    FD_SET(fd->fd, &writefds);
+                }
+                if ((fd->events & POLLERR))
+                {
+                    FD_SET(fd->fd, &errorfds);
+                }
+            }
+
+            struct timeval tv;
+            tv.tv_sec = timeout / 1000;
+            tv.tv_usec = (timeout % 1000) * 1000;
+
+            int ret = select(maxfd + 1, &readfds, &writefds, &errorfds, timeout != -1 ? &tv : NULL);
+
+            if (ret < 0)
+            {
+                return ret;
+            }
+
+            for (nfds_t i = 0; i < nfds; ++i)
+            {
+                struct pollfd* fd = &fds[i];
+                fd->revents = 0;
+
+                if (FD_ISSET(fd->fd, &readfds))
+                {
+                    fd->revents |= POLLIN;
+                }
+                if (FD_ISSET(fd->fd, &writefds))
+                {
+                    fd->revents |= POLLOUT;
+                }
+                if (FD_ISSET(fd->fd, &errorfds))
+                {
+                    fd->revents |= POLLERR;
+                }
+            }
+            return ret;
+        }
+#else
+        if (event && *event) *event = nullptr;
+
+        //
+        // It was reported that on Android poll can fail and return -1 with
+        // errno == EINTR, which should be a temp error and should typically
+        // be handled by retrying in a loop.
+        // Maybe we need to put all syscall / C functions in
+        // a new IXSysCalls.cpp and wrap them all.
+        //
+        // The style from libuv is as such.
+        //
+        int ret = -1;
+        do
+        {
+            ret = ::poll(fds, nfds, timeout);
+        } while (ret == -1 && errno == EINTR);
+
+        return ret;
+#endif
+    }
+
+    //
+    // mingw does not have inet_ntop, which were taken as is from the musl C library.
+    //
+    const char* inet_ntop(int af, const void* a0, char* s, socklen_t l)
+    {
+#if defined(_WIN32) && defined(__GNUC__)
+        const unsigned char* a = (const unsigned char*) a0;
+        int i, j, max, best;
+        char buf[100];
+
+        switch (af)
+        {
+            case AF_INET:
+                if (snprintf(s, l, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]) < l) return s;
+                break;
+            case AF_INET6:
+                if (memcmp(a, "\0\0\0\0\0\0\0\0\0\0\377\377", 12))
+                    snprintf(buf,
+                             sizeof buf,
+                             "%x:%x:%x:%x:%x:%x:%x:%x",
+                             256 * a[0] + a[1],
+                             256 * a[2] + a[3],
+                             256 * a[4] + a[5],
+                             256 * a[6] + a[7],
+                             256 * a[8] + a[9],
+                             256 * a[10] + a[11],
+                             256 * a[12] + a[13],
+                             256 * a[14] + a[15]);
+                else
+                    snprintf(buf,
+                             sizeof buf,
+                             "%x:%x:%x:%x:%x:%x:%d.%d.%d.%d",
+                             256 * a[0] + a[1],
+                             256 * a[2] + a[3],
+                             256 * a[4] + a[5],
+                             256 * a[6] + a[7],
+                             256 * a[8] + a[9],
+                             256 * a[10] + a[11],
+                             a[12],
+                             a[13],
+                             a[14],
+                             a[15]);
+                /* Replace longest /(^0|:)[:0]{2,}/ with "::" */
+                for (i = best = 0, max = 2; buf[i]; i++)
+                {
+                    if (i && buf[i] != ':') continue;
+                    j = strspn(buf + i, ":0");
+                    if (j > max) best = i, max = j;
+                }
+                if (max > 3)
+                {
+                    buf[best] = buf[best + 1] = ':';
+                    memmove(buf + best + 2, buf + best + max, i - best - max + 1);
+                }
+                if (strlen(buf) < (size_t)l)
+                {
+                    strcpy(s, buf);
+                    return s;
+                }
+                break;
+            default: errno = EAFNOSUPPORT; return 0;
+        }
+        errno = ENOSPC;
+        return 0;
+#else
+        return ::inet_ntop(af, a0, s, l);
+#endif
+    }
+
+#if defined(_WIN32) && defined(__GNUC__)
+    static int hexval(unsigned c)
+    {
+        if (c - '0' < 10) return c - '0';
+        c |= 32;
+        if (c - 'a' < 6) return c - 'a' + 10;
+        return -1;
+    }
+#endif
+
+    //
+    // mingw does not have inet_pton, which were taken as is from the musl C library.
+    //
+    int inet_pton(int af, const char* s, void* a0)
+    {
+#if defined(_WIN32) && defined(__GNUC__)
+        uint16_t ip[8];
+        unsigned char* a = (unsigned char*) a0;
+        int i, j, v, d, brk = -1, need_v4 = 0;
+
+        if (af == AF_INET)
+        {
+            for (i = 0; i < 4; i++)
+            {
+                for (v = j = 0; j < 3 && isdigit(s[j]); j++)
+                    v = 10 * v + s[j] - '0';
+                if (j == 0 || (j > 1 && s[0] == '0') || v > 255) return 0;
+                a[i] = v;
+                if (s[j] == 0 && i == 3) return 1;
+                if (s[j] != '.') return 0;
+                s += j + 1;
+            }
+            return 0;
+        }
+        else if (af != AF_INET6)
+        {
+            errno = EAFNOSUPPORT;
+            return -1;
+        }
+
+        if (*s == ':' && *++s != ':') return 0;
+
+        for (i = 0;; i++)
+        {
+            if (s[0] == ':' && brk < 0)
+            {
+                brk = i;
+                ip[i & 7] = 0;
+                if (!*++s) break;
+                if (i == 7) return 0;
+                continue;
+            }
+            for (v = j = 0; j < 4 && (d = hexval(s[j])) >= 0; j++)
+                v = 16 * v + d;
+            if (j == 0) return 0;
+            ip[i & 7] = v;
+            if (!s[j] && (brk >= 0 || i == 7)) break;
+            if (i == 7) return 0;
+            if (s[j] != ':')
+            {
+                if (s[j] != '.' || (i < 6 && brk < 0)) return 0;
+                need_v4 = 1;
+                i++;
+                break;
+            }
+            s += j + 1;
+        }
+        if (brk >= 0)
+        {
+            memmove(ip + brk + 7 - i, ip + brk, 2 * (i + 1 - brk));
+            for (j = 0; j < 7 - i; j++)
+                ip[brk + j] = 0;
+        }
+        for (j = 0; j < 8; j++)
+        {
+            *a++ = ip[j] >> 8;
+            *a++ = ip[j];
+        }
+        if (need_v4 && inet_pton(AF_INET, (const char*) s, a - 4) <= 0) return 0;
+        return 1;
+#else
+        return ::inet_pton(af, s, a0);
+#endif
+    }
+
+    // Convert network bytes to host bytes. Copied from the ASIO library
+    unsigned short network_to_host_short(unsigned short value)
+    {
+        #if defined(_WIN32)
+          unsigned char* value_p = reinterpret_cast<unsigned char*>(&value);
+          unsigned short result = (static_cast<unsigned short>(value_p[0]) << 8)
+            | static_cast<unsigned short>(value_p[1]);
+          return result;
+        #else // defined(_WIN32)
+          return ntohs(value);
+        #endif // defined(_WIN32)
+    }
+
+} // namespace ix

ixwebsocket/IXNetSystem.h

@@ -0,0 +1,93 @@
+/*
+ *  IXNetSystem.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone. All rights reserved.
+ */
+
+#pragma once
+
+#include <cstdint>
+
+#ifdef __FreeBSD__
+#include <sys/types.h>
+#endif
+
+#ifdef _WIN32
+
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+
+#include <ws2tcpip.h>
+#include <winsock2.h>
+#include <basetsd.h>
+#include <io.h>
+#include <ws2def.h>
+#include <cerrno>
+
+#undef EWOULDBLOCK
+#undef EAGAIN
+#undef EINPROGRESS
+#undef EBADF
+#undef EINVAL
+
+// map to WSA error codes
+#define EWOULDBLOCK WSAEWOULDBLOCK
+#define EAGAIN WSATRY_AGAIN
+#define EINPROGRESS WSAEINPROGRESS
+#define EBADF WSAEBADF
+#define EINVAL WSAEINVAL
+
+// Define our own poll on Windows, as a wrapper on top of select
+typedef unsigned long int nfds_t;
+
+// pollfd is not defined by some versions of mingw64 since _WIN32_WINNT is too low
+#if _WIN32_WINNT < 0x0600
+struct pollfd
+{
+    int fd;        /* file descriptor */
+    short events;  /* requested events */
+    short revents; /* returned events */
+};
+
+#define POLLIN 0x001   /* There is data to read.  */
+#define POLLOUT 0x004  /* Writing now will not block.  */
+#define POLLERR 0x008  /* Error condition.  */
+#define POLLHUP 0x010  /* Hung up.  */
+#define POLLNVAL 0x020 /* Invalid polling request.  */
+#endif
+
+#else
+#include <arpa/inet.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/tcp.h>
+#include <poll.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <unistd.h>
+#endif
+
+namespace ix
+{
+#ifdef _WIN32
+    typedef SOCKET socket_t;
+#else
+    typedef int socket_t;
+#endif
+
+    bool initNetSystem();
+    bool uninitNetSystem();
+
+    int poll(struct pollfd* fds, nfds_t nfds, int timeout, void** event);
+
+    const char* inet_ntop(int af, const void* src, char* dst, socklen_t size);
+    int inet_pton(int af, const char* src, void* dst);
+
+    unsigned short network_to_host_short(unsigned short value);
+} // namespace ix

ixwebsocket/IXProgressCallback.h

@@ -0,0 +1,16 @@
+/*
+ *  IXProgressCallback.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#pragma once
+
+#include <functional>
+#include <string>
+
+namespace ix
+{
+    using OnProgressCallback = std::function<bool(int current, int total)>;
+    using OnChunkCallback = std::function<void(const std::string&)>;
+}

ixwebsocket/IXSelectInterrupt.cpp

@@ -0,0 +1,53 @@
+/*
+ *  IXSelectInterrupt.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#include "IXSelectInterrupt.h"
+
+namespace ix
+{
+    const uint64_t SelectInterrupt::kSendRequest = 1;
+    const uint64_t SelectInterrupt::kCloseRequest = 2;
+
+    SelectInterrupt::SelectInterrupt()
+    {
+        ;
+    }
+
+    SelectInterrupt::~SelectInterrupt()
+    {
+        ;
+    }
+
+    bool SelectInterrupt::init(std::string& /*errorMsg*/)
+    {
+        return true;
+    }
+
+    bool SelectInterrupt::notify(uint64_t /*value*/)
+    {
+        return true;
+    }
+
+    uint64_t SelectInterrupt::read()
+    {
+        return 0;
+    }
+
+    bool SelectInterrupt::clear()
+    {
+        return true;
+    }
+
+    int SelectInterrupt::getFd() const
+    {
+        return -1;
+    }
+
+    void* SelectInterrupt::getEvent() const
+    {
+        return nullptr;
+    }
+} // namespace ix

ixwebsocket/IXSelectInterrupt.h

@@ -0,0 +1,35 @@
+/*
+ *  IXSelectInterrupt.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#pragma once
+
+#include <cstdint>
+#include <memory>
+#include <string>
+
+namespace ix
+{
+    class SelectInterrupt
+    {
+    public:
+        SelectInterrupt();
+        virtual ~SelectInterrupt();
+
+        virtual bool init(std::string& errorMsg);
+
+        virtual bool notify(uint64_t value);
+        virtual bool clear();
+        virtual uint64_t read();
+        virtual int getFd() const;
+        virtual void* getEvent() const;
+
+        // Used as special codes for pipe communication
+        static const uint64_t kSendRequest;
+        static const uint64_t kCloseRequest;
+    };
+
+    using SelectInterruptPtr = std::unique_ptr<SelectInterrupt>;
+} // namespace ix