do not hardcode server ports in unittest, get one dynamically with bind(0)

.dockerignore

@@ -1 +0,0 @@
-build

.travis.yml

@@ -2,16 +2,10 @@ language: cpp
 dist: xenial
 
 compiler:
-  - gcc
   - clang
-os:
-  - linux
-  - osx
-
-matrix:
-  exclude:
-    # GCC fails on recent Travis OSX images.
-    - compiler: gcc
-      os: osx
+#   - gcc
 
+os: osx
+# os: windows
+# script: make test
 script: python test/run.py

CMakeLists.txt

@@ -10,20 +10,15 @@ set (CMAKE_CXX_STANDARD 14)
 set (CXX_STANDARD_REQUIRED ON)
 set (CMAKE_CXX_EXTENSIONS OFF)
 
-# -Wshorten-64-to-32 does not work with clang
 if (NOT WIN32)
   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/IXEventFd.cpp
     ixwebsocket/IXSocket.cpp
     ixwebsocket/IXSocketServer.cpp
     ixwebsocket/IXSocketConnect.cpp
-    ixwebsocket/IXSocketFactory.cpp
     ixwebsocket/IXDNSLookup.cpp
     ixwebsocket/IXCancellationRequest.cpp
     ixwebsocket/IXWebSocket.cpp
@@ -33,23 +28,16 @@ set( IXWEBSOCKET_SOURCES
     ixwebsocket/IXWebSocketPerMessageDeflate.cpp
     ixwebsocket/IXWebSocketPerMessageDeflateCodec.cpp
     ixwebsocket/IXWebSocketPerMessageDeflateOptions.cpp
-    ixwebsocket/IXWebSocketHttpHeaders.cpp
-    ixwebsocket/IXHttpClient.cpp
-    ixwebsocket/IXUrlParser.cpp
-    ixwebsocket/IXSelectInterrupt.cpp
-    ixwebsocket/IXSelectInterruptFactory.cpp
-    ixwebsocket/IXConnectionState.cpp
 )
 
 set( IXWEBSOCKET_HEADERS
+    ixwebsocket/IXEventFd.h
     ixwebsocket/IXSocket.h
     ixwebsocket/IXSocketServer.h
     ixwebsocket/IXSocketConnect.h
-    ixwebsocket/IXSocketFactory.h
     ixwebsocket/IXSetThreadName.h
     ixwebsocket/IXDNSLookup.h
     ixwebsocket/IXCancellationRequest.h
-    ixwebsocket/IXProgressCallback.h
     ixwebsocket/IXWebSocket.h
     ixwebsocket/IXWebSocketServer.h
     ixwebsocket/IXWebSocketTransport.h
@@ -61,19 +49,8 @@ set( IXWEBSOCKET_HEADERS
     ixwebsocket/IXWebSocketPerMessageDeflateOptions.h
     ixwebsocket/IXWebSocketHttpHeaders.h
     ixwebsocket/libwshandshake.hpp
-    ixwebsocket/IXHttpClient.h
-    ixwebsocket/IXUrlParser.h
-    ixwebsocket/IXSelectInterrupt.h
-    ixwebsocket/IXSelectInterruptFactory.h
-    ixwebsocket/IXConnectionState.h
 )
 
-if (UNIX)
-    # Linux, Mac, iOS, Android
-    list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/IXSelectInterruptPipe.cpp )
-    list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/IXSelectInterruptPipe.h )
-endif()
-
 # Platform specific code
 if (APPLE)
     list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/apple/IXSetThreadName_apple.cpp)
@@ -81,11 +58,8 @@ elseif (WIN32)
     list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/windows/IXSetThreadName_windows.cpp)
 else()
     list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/linux/IXSetThreadName_linux.cpp)
-    list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/IXSelectInterruptEventFd.cpp)
-    list( APPEND IXWEBSOCKET_HEADERS ixwebsocket/IXSelectInterruptEventFd.h)
 endif()
 
-set(USE_OPEN_SSL FALSE)
 if (USE_TLS)
     add_definitions(-DIXWEBSOCKET_USE_TLS)
 
@@ -96,7 +70,6 @@ if (USE_TLS)
         list( APPEND IXWEBSOCKET_HEADERS ixwebsocket/IXSocketSChannel.h)
         list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/IXSocketSChannel.cpp)
     else()
-        set(USE_OPEN_SSL TRUE)
         list( APPEND IXWEBSOCKET_HEADERS ixwebsocket/IXSocketOpenSSL.h)
         list( APPEND IXWEBSOCKET_SOURCES ixwebsocket/IXSocketOpenSSL.cpp)
     endif()
@@ -107,16 +80,14 @@ add_library( ixwebsocket STATIC
     ${IXWEBSOCKET_HEADERS}
 )
 
-if (APPLE AND USE_TLS)
-  target_link_libraries(ixwebsocket "-framework foundation" "-framework security")
-endif()
+# gcc/Linux needs -pthread
+find_package(Threads)
 
-if(USE_OPEN_SSL)
+if(UNIX AND NOT APPLE)
   find_package(OpenSSL REQUIRED)
   add_definitions(${OPENSSL_DEFINITIONS})
   message(STATUS "OpenSSL: " ${OPENSSL_VERSION})
   include_directories(${OPENSSL_INCLUDE_DIR})
-  target_link_libraries(ixwebsocket ${OPENSSL_LIBRARIES})
 endif()
 
 if (WIN32)
@@ -131,21 +102,13 @@ if (WIN32)
 
   target_link_libraries(ixwebsocket libz wsock32 ws2_32)
   add_definitions(-D_CRT_SECURE_NO_WARNINGS)
-
+  
 else()
-  # gcc/Linux needs -pthread
-  find_package(Threads)
-
   target_link_libraries(ixwebsocket 
-    z ${CMAKE_THREAD_LIBS_INIT})
+    z ${OPENSSL_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
 endif()
 
 set( IXWEBSOCKET_INCLUDE_DIRS
     .
-)
-
+    ../../shared/OpenSSL/include)
 target_include_directories( ixwebsocket PUBLIC ${IXWEBSOCKET_INCLUDE_DIRS} )
-
-if (NOT WIN32)
-    add_subdirectory(ws)
-endif()

DOCKER_VERSION

@@ -1 +0,0 @@
-1.4.0

Dockerfile

@@ -1,47 +0,0 @@
-# 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 
-
-# Debugging
-RUN apt-get install -y strace
-RUN apt-get install -y gdb
-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
-
-CMD ["ws"]

Dockerfile

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

README.md

@@ -4,18 +4,18 @@
 
 ## Introduction
 
-[*WebSocket*](https://en.wikipedia.org/wiki/WebSocket) is a computer communications protocol, providing full-duplex and bi-directionnal communication channels over a single TCP connection. *IXWebSocket* is a C++ library for client and server Websocket communication, and for client HTTP communication. The code is derived from [easywsclient](https://github.com/dhbaird/easywsclient) and from the [Satori C SDK](https://github.com/satori-com/satori-rtm-sdk-c). It has been tested on the following platforms.
+[*WebSocket*](https://en.wikipedia.org/wiki/WebSocket) is a computer communications protocol, providing full-duplex
+communication channels over a single TCP connection. *IXWebSocket* is a C++ library for client and server Websocket communication. The code is derived from [easywsclient](https://github.com/dhbaird/easywsclient) and from the [Satori C SDK](https://github.com/satori-com/satori-rtm-sdk-c). It has been tested on the following platforms.
 
 * macOS
 * iOS
 * Linux
-* Android
-
-The code was made to compile once on Windows but support is currently broken on this platform.
+* Android 
+* Windows (no TLS support yet)
 
 ## 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.
+The examples folder countains a simple chat program, using a node.js broadcast server.
 
 Here is what the client API looks like.
 
@@ -25,7 +25,7 @@ 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
+// Optional heart beat, sent every 45 seconds when there isn't any traffic
 // to make sure that load balancers do not kill an idle connection.
 webSocket.setHeartBeatPeriod(45);
 
@@ -47,12 +47,9 @@ webSocket.setOnMessageCallback(
 // 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 BINARY mode)
+// Send a message to the server
 webSocket.send("hello world");
 
-// The message can be sent in TEXT mode
-webSocket.sendText("hello again");
-
 // ... finally ...
 
 // Stop the connection
@@ -67,11 +64,10 @@ Here is what the server API looks like. Note that server support is very recent
 ix::WebSocketServer server(port);
 
 server.setOnConnectionCallback(
-    [&server](std::shared_ptr<WebSocket> webSocket,
-              std::shared_ptr<ConnectionState> connectionState)
+    [&server](std::shared_ptr<ix::WebSocket> webSocket)
     {
         webSocket->setOnMessageCallback(
-            [webSocket, connectionState, &server](ix::WebSocketMessageType messageType,
+            [webSocket, &server](ix::WebSocketMessageType messageType,
                const std::string& str,
                size_t wireSize,
                const ix::WebSocketErrorInfo& error,
@@ -81,16 +77,7 @@ server.setOnConnectionCallback(
                 if (messageType == ix::WebSocket_MessageType_Open)
                 {
                     std::cerr << "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::cerr << "id: " << connectionState->getId() << std::endl;
-
-                    // The uri the client did connect to.
                     std::cerr << "Uri: " << openInfo.uri << std::endl;
-
                     std::cerr << "Headers:" << std::endl;
                     for (auto it : openInfo.headers)
                     {
@@ -123,81 +110,12 @@ server.wait();
 
 ```
 
-Here is what the HTTP client API looks like. Note that HTTP client support is very recent and subject to changes.
-
-```
-//
-// Preparation
-//
-HttpClient httpClient;
-HttpRequestArgs args;
-
-// 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;
-};
-
-//
-// Request
-//
-HttpResponse 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";
-out = httpClient.post(url, httpParameters, args);
-
-// POST request with a body
-out = httpClient.post(url, std::string("foo=bar"), args);
-
-//
-// Result
-//
-auto statusCode = std::get<0>(out);
-auto errorCode = std::get<1>(out);
-auto responseHeaders = std::get<2>(out);
-auto payload = std::get<3>(out);
-auto errorMsg = std::get<4>(out);
-auto uploadSize = std::get<5>(out);
-auto downloadSize = std::get<6>(out);
-```
-
 ## Build
 
 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.
 
 There is a Dockerfile for running some code on Linux, and a unittest which can be executed by typing `make test`.
 
-You can build and install the ws command line tool with Homebrew.
-
-```
-brew tap bsergean/IXWebSocket
-brew install IXWebSocket
-```
-
 ## Implementation details
 
 ### Per Message Deflate compression.
@@ -216,31 +134,37 @@ No manual polling to fetch data is required. Data is sent and received instantly
 
 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.
 
-### 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.
-
 ## Limitations
 
-* No utf-8 validation is made when sending TEXT message with sendText()
+* There is no text support for sending data, only the binary protocol is supported. Sending json or text over the binary protocol works well.
 * 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.
+* The server code is using select to detect incoming data, and creates one OS thread per connection. This isn't as scalable as strategies using epoll or kqueue.
+
+## Examples
+
+1. Bring up a terminal and jump to the examples folder.
+2. Compile the example C++ code. `sh build.sh`
+3. Install node.js from [here](https://nodejs.org/en/download/).
+4. Type `npm install` to install the node.js dependencies. Then `node broadcast-server.js` to run the server.
+5. Bring up a second terminal. `./cmd_websocket_chat bob`
+6. Bring up a third terminal. `./cmd_websocket_chat bill`
+7. Start typing things in any of those terminals. Hopefully you should see your message being received on the other end.
 
 ## C++ code organization
 
-Here is a simplistic diagram which explains how the code is structured in term of class/modules.
+Here's 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
++-----------------------+ --- Private 
 |                       |
 |  IXWebSocketTransport | Low level websocket code, framing, managing raw socket. Adapted from easywsclient.
 |                       |
@@ -280,7 +204,7 @@ If the connection was closed and sending failed, the return value will be set to
 1. WebSocket_ReadyState_Connecting - The connection is not yet open.
 2. WebSocket_ReadyState_Open       - The connection is open and ready to communicate.
 3. WebSocket_ReadyState_Closing    - The connection is in the process of closing.
-4. WebSocket_MessageType_Close     - The connection is closed or could not be opened.
+4. WebSocket_MessageType_Close     - The connection is closed or couldn't be opened.
 
 ### Open and Close notifications
 
@@ -385,12 +309,11 @@ A ping message can be sent to the server, with an optional data string.
 
 ```
 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
+when there isn't any traffic to make sure that load balancers do not kill an
 idle connection.
 
 ```

docker-compose.yml

@@ -1,21 +0,0 @@
-version: "3"
-services:
-  ws:
-    stdin_open: true
-    tty: true
-    image: bsergean/ws:build
-    ports:
-      - "8765:8765"
-    entrypoint: bash
-    networks:
-      - ws-net
-    depends_on:
-      - redis1
-
-  redis1:
-    image: redis:alpine
-    networks:
-      - ws-net
-
-networks:
-  ws-net:

docker/Dockerfile

@@ -0,0 +1,16 @@
+FROM debian:stretch
+
+# RUN yum install -y gcc-c++ make cmake openssl-devel gdb
+ENV DEBIAN_FRONTEND noninteractive
+RUN apt-get update 
+RUN apt-get -y install g++ 
+RUN apt-get -y install libssl-dev
+RUN apt-get -y install gdb
+RUN apt-get -y install screen
+RUN apt-get -y install procps
+RUN apt-get -y install lsof
+
+COPY . .
+
+WORKDIR examples/ws_connect
+RUN ["sh", "build_linux.sh"]

docker/Dockerfile.alpine

@@ -0,0 +1,11 @@
+FROM alpine:3.8
+
+RUN apk add --no-cache g++ musl-dev make cmake openssl-dev
+
+COPY . .
+
+WORKDIR examples/ws_connect
+RUN ["sh", "build_linux.sh"]
+
+EXPOSE 8765
+CMD ["ws_connect"]

docker/Dockerfile.centos

@@ -0,0 +1,11 @@
+FROM alpine:3.8
+
+RUN apk add --no-cache g++ musl-dev make cmake openssl-dev
+
+COPY . .
+
+WORKDIR examples/ws_connect
+RUN ["sh", "build_linux.sh"]
+
+EXPOSE 8765
+CMD ["ws_connect"]

docker/Dockerfile.debian

@@ -0,0 +1,19 @@
+FROM debian:stretch
+
+ENV DEBIAN_FRONTEND noninteractive
+RUN apt-get update 
+RUN apt-get -y install g++ 
+RUN apt-get -y install libssl-dev
+RUN apt-get -y install gdb
+RUN apt-get -y install screen
+RUN apt-get -y install procps
+RUN apt-get -y install lsof
+RUN apt-get -y install libz-dev
+RUN apt-get -y install vim
+RUN apt-get -y install make
+RUN apt-get -y install cmake
+
+COPY . .
+
+WORKDIR test
+RUN ["sh", "build_linux.sh"]

docker/Dockerfile.gcc

@@ -0,0 +1,8 @@
+FROM gcc:8
+
+# RUN yum install -y gcc-c++ make cmake openssl-devel gdb
+
+COPY . .
+
+WORKDIR examples/ws_connect
+RUN ["sh", "build_linux.sh"]

examples/broadcast_server/.gitignore

@@ -0,0 +1,9 @@
+CMakeCache.txt
+package-lock.json
+CMakeFiles		
+ixwebsocket_unittest	
+cmake_install.cmake	
+node_modules
+ixwebsocket
+Makefile
+build

examples/broadcast_server/CMakeLists.txt

@@ -0,0 +1,30 @@
+#
+# Author: Benjamin Sergeant
+# Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+#
+
+cmake_minimum_required (VERSION 3.4.1)
+project (broadcast_server)
+
+# There's -Weverything too for clang
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic -Wshorten-64-to-32")
+
+set (OPENSSL_PREFIX /usr/local/opt/openssl) # Homebrew openssl
+
+set (CMAKE_CXX_STANDARD 14)
+
+option(USE_TLS "Add TLS support" ON)
+
+add_subdirectory(${PROJECT_SOURCE_DIR}/../.. ixwebsocket)
+
+include_directories(broadcast_server .)
+
+add_executable(broadcast_server 
+  broadcast_server.cpp)
+
+if (APPLE AND USE_TLS)
+    target_link_libraries(broadcast_server "-framework foundation" "-framework security")
+endif()
+
+target_link_libraries(broadcast_server ixwebsocket)
+install(TARGETS broadcast_server DESTINATION bin)

examples/broadcast_server/broadcast_server.cpp

@@ -0,0 +1,74 @@
+/*
+ *  broadcast_server.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+ */
+
+#include <iostream>
+#include <sstream>
+#include <ixwebsocket/IXWebSocketServer.h>
+
+int main(int argc, char** argv)
+{
+    int port = 8080;
+    if (argc == 2)
+    {
+        std::stringstream ss;
+        ss << argv[1];
+        ss >> port;
+    }
+
+    ix::WebSocketServer server(port);
+
+    server.setOnConnectionCallback(
+        [&server](std::shared_ptr<ix::WebSocket> webSocket)
+        {
+            webSocket->setOnMessageCallback(
+                [webSocket, &server](ix::WebSocketMessageType messageType,
+                   const std::string& str,
+                   size_t wireSize,
+                   const ix::WebSocketErrorInfo& error,
+                   const ix::WebSocketOpenInfo& openInfo,
+                   const ix::WebSocketCloseInfo& closeInfo)
+                {
+                    if (messageType == ix::WebSocket_MessageType_Open)
+                    {
+                        std::cerr << "New connection" << std::endl;
+                        std::cerr << "Uri: " << openInfo.uri << std::endl;
+                        std::cerr << "Headers:" << std::endl;
+                        for (auto it : openInfo.headers)
+                        {
+                            std::cerr << it.first << ": " << it.second << std::endl;
+                        }
+                    }
+                    else if (messageType == ix::WebSocket_MessageType_Close)
+                    {
+                        std::cerr << "Closed connection" << std::endl;
+                    }
+                    else if (messageType == ix::WebSocket_MessageType_Message)
+                    {
+                        for (auto&& client : server.getClients())
+                        {
+                            if (client != webSocket)
+                            {
+                                client->send(str);
+                            }
+                        }
+                    }
+                }
+            );
+        }
+    );
+
+    auto res = server.listen();
+    if (!res.first)
+    {
+        std::cerr << res.second << std::endl;
+        return 1;
+    }
+
+    server.start();
+    server.wait();
+
+    return 0;
+}

examples/chat/.gitignore

@@ -1,2 +1,3 @@
 build
+venv
 node_modules

examples/chat/CMakeLists.txt

@@ -0,0 +1,23 @@
+#
+# cmd_websocket_chat.cpp
+# Author: Benjamin Sergeant
+# Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+#
+
+cmake_minimum_required (VERSION 3.4.1)
+project (cmd_websocket_chat)
+
+set (CMAKE_CXX_STANDARD 14)
+
+option(USE_TLS "Add TLS support" ON)
+
+add_subdirectory(${PROJECT_SOURCE_DIR}/../.. ixwebsocket)
+
+add_executable(cmd_websocket_chat cmd_websocket_chat.cpp)
+
+if (APPLE AND USE_TLS)
+    target_link_libraries(cmd_websocket_chat "-framework foundation" "-framework security")
+endif()
+
+target_link_libraries(cmd_websocket_chat ixwebsocket)
+install(TARGETS cmd_websocket_chat DESTINATION bin)

examples/chat/README.md

@@ -0,0 +1,39 @@
+# Building
+
+1. cmake -G .
+2. make
+
+## Disable TLS
+
+chat$ cmake -DUSE_TLS=OFF .
+-- Configuring done
+-- Generating done
+-- Build files have been written to: /Users/bsergeant/src/foss/ixwebsocket/examples/chat
+chat$ make
+Scanning dependencies of target ixwebsocket
+[ 16%] Building CXX object ixwebsocket/CMakeFiles/ixwebsocket.dir/ixwebsocket/IXSocket.cpp.o
+[ 33%] Building CXX object ixwebsocket/CMakeFiles/ixwebsocket.dir/ixwebsocket/IXWebSocket.cpp.o
+[ 50%] Building CXX object ixwebsocket/CMakeFiles/ixwebsocket.dir/ixwebsocket/IXWebSocketTransport.cpp.o
+[ 66%] Linking CXX static library libixwebsocket.a
+[ 66%] Built target ixwebsocket
+[ 83%] Linking CXX executable cmd_websocket_chat
+[100%] Built target cmd_websocket_chat
+
+## Enable TLS (default)
+
+```
+chat$ cmake -DUSE_TLS=ON .
+-- Configuring done
+-- Generating done
+-- Build files have been written to: /Users/bsergeant/src/foss/ixwebsocket/examples/chat
+(venv) chat$ make
+Scanning dependencies of target ixwebsocket
+[ 14%] Building CXX object ixwebsocket/CMakeFiles/ixwebsocket.dir/ixwebsocket/IXSocket.cpp.o
+[ 28%] Building CXX object ixwebsocket/CMakeFiles/ixwebsocket.dir/ixwebsocket/IXWebSocket.cpp.o
+[ 42%] Building CXX object ixwebsocket/CMakeFiles/ixwebsocket.dir/ixwebsocket/IXWebSocketTransport.cpp.o
+[ 57%] Building CXX object ixwebsocket/CMakeFiles/ixwebsocket.dir/ixwebsocket/IXSocketAppleSSL.cpp.o
+[ 71%] Linking CXX static library libixwebsocket.a
+[ 71%] Built target ixwebsocket
+[ 85%] Linking CXX executable cmd_websocket_chat
+[100%] Built target cmd_websocket_chat
+```

examples/chat/build_linux.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+#
+# Author: Benjamin Sergeant
+# Copyright (c) 2017-2018 Machine Zone, Inc. All rights reserved.
+#
+
+# 'manual' way of building. You can also use cmake.
+
+g++ --std=c++11 \
+    ../../ixwebsocket/IXSocket.cpp	\
+    ../../ixwebsocket/IXWebSocketTransport.cpp \
+    ../../ixwebsocket/IXWebSocket.cpp \
+    -I ../.. \
+    cmd_websocket_chat.cpp \
+    -o cmd_websocket_chat

examples/chat/build_macos.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+#
+# Author: Benjamin Sergeant
+# Copyright (c) 2017-2018 Machine Zone, Inc. All rights reserved.
+#
+
+# 'manual' way of building. You can also use cmake.
+
+clang++ --std=c++11 --stdlib=libc++ \
+    ../../ixwebsocket/IXSocket.cpp	\
+    ../../ixwebsocket/IXWebSocketTransport.cpp \
+    ../../ixwebsocket/IXSocketAppleSSL.cpp	\
+    ../../ixwebsocket/IXWebSocket.cpp \
+    cmd_websocket_chat.cpp \
+    -o cmd_websocket_chat \
+    -framework Security \
+    -framework Foundation

examples/chat/cmd_websocket_chat.cpp

@@ -1,12 +1,12 @@
 /*
- *  ws_chat.cpp
+ *  cmd_websocket_chat.cpp
  *  Author: Benjamin Sergeant
- *  Copyright (c) 2017-2019 Machine Zone, Inc. All rights reserved.
+ *  Copyright (c) 2017-2018 Machine Zone, Inc. All rights reserved.
  */
 
 //
-// Simple chat program that talks to a broadcast server
-// Broadcast server can be ran with `ws broadcast_server`
+// Simple chat program that talks to the node.js server at
+// websocket_chat_server/broacast-server.js
 //
 
 #include <iostream>
@@ -20,13 +20,19 @@
 // for convenience
 using json = nlohmann::json;
 
-namespace ix
+using namespace ix;
+
+namespace
 {
+    void log(const std::string& msg)
+    {
+        std::cout << msg << std::endl;
+    }
+
     class WebSocketChat
     {
         public:
-            WebSocketChat(const std::string& url,
-                          const std::string& user);
+            WebSocketChat(const std::string& user);
 
             void subscribe(const std::string& channel);
             void start();
@@ -40,27 +46,19 @@ namespace ix
             std::pair<std::string, std::string> decodeMessage(const std::string& str);
 
         private:
-            std::string _url;
             std::string _user;
-            ix::WebSocket _webSocket;
-            std::queue<std::string> _receivedQueue;
 
-            void log(const std::string& msg);
+            ix::WebSocket _webSocket;
+
+            std::queue<std::string> _receivedQueue;
     };
 
-    WebSocketChat::WebSocketChat(const std::string& url,
-                                 const std::string& user) :
-        _url(url),
+    WebSocketChat::WebSocketChat(const std::string& user) :
         _user(user)
     {
         ;
     }
 
-    void WebSocketChat::log(const std::string& msg)
-    {
-        std::cout << msg << std::endl;
-    }
-
     size_t WebSocketChat::getReceivedMessagesCount() const
     {
         return _receivedQueue.size();
@@ -78,10 +76,11 @@ namespace ix
 
     void WebSocketChat::start()
     {
-        _webSocket.setUrl(_url);
+        std::string url("ws://localhost:8080/");
+        _webSocket.setUrl(url);
 
         std::stringstream ss;
-        log(std::string("Connecting to url: ") + _url);
+        log(std::string("Connecting to url: ") + url);
 
         _webSocket.setOnMessageCallback(
             [this](ix::WebSocketMessageType messageType,
@@ -94,26 +93,16 @@ namespace ix
                 std::stringstream ss;
                 if (messageType == ix::WebSocket_MessageType_Open)
                 {
-                    log("ws chat: connected");
-                    std::cout << "Uri: " << openInfo.uri << std::endl;
-                    std::cout << "Handshake Headers:" << std::endl;
-                    for (auto it : openInfo.headers)
-                    {
-                        std::cout << it.first << ": " << it.second << std::endl;
-                    }
-
-                    ss << "ws chat: user "
+                    ss << "cmd_websocket_chat: user "
                        << _user
                        << " Connected !";
                        log(ss.str());
                 }
                 else if (messageType == ix::WebSocket_MessageType_Close)
                 {
-                    ss << "ws chat: user "
+                    ss << "cmd_websocket_chat: user "
                        << _user
-                       << " disconnected !"
-                       << " code " << closeInfo.code
-                       << " reason " << closeInfo.reason;
+                       << " disconnected !";
                        log(ss.str());
                 }
                 else if (messageType == ix::WebSocket_MessageType_Message)
@@ -126,8 +115,8 @@ namespace ix
                     // store text
                     _receivedQueue.push(result.second);
 
-                    ss << std::endl
-                       << result.first << "(" << wireSize << " bytes)" << " > " << result.second
+                    ss << std::endl 
+                       << result.first << " > " << result.second
                        << std::endl
                        << _user << " > ";
                     log(ss.str());
@@ -175,11 +164,10 @@ namespace ix
         _webSocket.send(encodeMessage(text));
     }
 
-    int ws_chat_main(const std::string& url,
-                     const std::string& user)
+    void interactiveMain(const std::string& user)
     {
         std::cout << "Type Ctrl-D to exit prompt..." << std::endl;
-        WebSocketChat webSocketChat(url, user);
+        WebSocketChat webSocketChat(user);
         webSocketChat.start();
 
         while (true)
@@ -198,7 +186,18 @@ namespace ix
 
         std::cout << std::endl;
         webSocketChat.stop();
-
-        return 0;
     }
 }
+
+int main(int argc, char** argv)
+{
+    std::string user("user");
+    if (argc == 2)
+    {
+        user = argv[1];
+    }
+
+    Socket::init();
+    interactiveMain(user);
+    return 0;
+}

examples/chat/package-lock.json

@@ -0,0 +1,31 @@
+{
+  "requires": true,
+  "lockfileVersion": 1,
+  "dependencies": {
+    "async-limiter": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
+      "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg=="
+    },
+    "safe-buffer": {
+      "version": "5.1.2",
+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+      "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+    },
+    "ultron": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
+      "integrity": "sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og=="
+    },
+    "ws": {
+      "version": "3.3.3",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-3.3.3.tgz",
+      "integrity": "sha512-nnWLa/NwZSt4KQJu51MYlCcSQ5g7INpOrOMt4XV8j4dqTXdmlUmSHQ8/oLC069ckre0fRsgfvsKwbTdtKLCDkA==",
+      "requires": {
+        "async-limiter": "1.0.0",
+        "safe-buffer": "5.1.2",
+        "ultron": "1.1.1"
+      }
+    }
+  }
+}

examples/chat/package.json

@@ -0,0 +1,6 @@
+{
+  "dependencies": {
+    "msgpack-js": "^0.3.0",
+    "ws": "^3.3.3"
+  }
+}

examples/cobra_publisher/.gitignore

@@ -0,0 +1,3 @@
+venv
+build
+node_modules

examples/cobra_publisher/CMakeLists.txt

@@ -0,0 +1,40 @@
+#
+# Author: Benjamin Sergeant
+# Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+#
+
+cmake_minimum_required (VERSION 3.4.1)
+project (cobra_publisher)
+
+# There's -Weverything too for clang
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic -Wshorten-64-to-32")
+
+set (OPENSSL_PREFIX /usr/local/opt/openssl) # Homebrew openssl
+
+set (CMAKE_CXX_STANDARD 14)
+
+option(USE_TLS "Add TLS support" ON)
+
+add_subdirectory(${PROJECT_SOURCE_DIR}/../.. ixwebsocket)
+
+include_directories(cobra_publisher ${OPENSSL_PREFIX}/include)
+include_directories(cobra_publisher .)
+
+add_executable(cobra_publisher 
+  jsoncpp/jsoncpp.cpp
+  ixcrypto/IXHMac.cpp
+  ixcrypto/IXBase64.cpp
+  IXCobraConnection.cpp
+  cobra_publisher.cpp)
+
+if (APPLE AND USE_TLS)
+    target_link_libraries(cobra_publisher "-framework foundation" "-framework security")
+endif()
+
+get_filename_component(crypto_lib_path ${OPENSSL_PREFIX}/lib/libcrypto.a ABSOLUTE)
+add_library(lib_crypto STATIC IMPORTED)
+set_target_properties(lib_crypto PROPERTIES IMPORTED_LOCATION ${crypto_lib_path})
+
+link_directories(/usr/local/opt/openssl/lib)
+target_link_libraries(cobra_publisher ixwebsocket lib_crypto)
+install(TARGETS cobra_publisher DESTINATION bin)

examples/cobra_publisher/IXCobraConnection.cpp

@@ -6,7 +6,6 @@
 
 #include "IXCobraConnection.h"
 #include <ixcrypto/IXHMac.h>
-#include <ixwebsocket/IXWebSocket.h>
 
 #include <algorithm>
 #include <stdexcept>
@@ -21,10 +20,9 @@ namespace ix
     constexpr size_t CobraConnection::kQueueMaxSize;
 
     CobraConnection::CobraConnection() :
-        _webSocket(new WebSocket()),
-        _publishMode(CobraConnection_PublishMode_Immediate),
         _authenticated(false),
-        _eventCallback(nullptr)
+        _eventCallback(nullptr),
+        _publishMode(CobraConnection_PublishMode_Immediate)
     {
         _pdu["action"] = "rtm/publish";
 
@@ -34,7 +32,6 @@ namespace ix
     CobraConnection::~CobraConnection()
     {
         disconnect();
-        setEventCallback(nullptr);
     }
 
     void CobraConnection::setTrafficTrackerCallback(const TrafficTrackerCallback& callback)
@@ -63,39 +60,35 @@ namespace ix
 
     void CobraConnection::invokeEventCallback(ix::CobraConnectionEventType eventType,
                                                const std::string& errorMsg,
-                                               const WebSocketHttpHeaders& headers,
-                                               const std::string& subscriptionId)
+                                               const WebSocketHttpHeaders& headers)
     {
         std::lock_guard<std::mutex> lock(_eventCallbackMutex);
         if (_eventCallback)
         {
-            _eventCallback(eventType, errorMsg, headers, subscriptionId);
+            _eventCallback(eventType, errorMsg, headers);
         }
     }
 
-    void CobraConnection::invokeErrorCallback(const std::string& errorMsg,
-                                               const std::string& serializedPdu)
+    void CobraConnection::invokeErrorCallback(const std::string& errorMsg)
     {
-        std::stringstream ss;
-        ss << errorMsg << " : received pdu => " << serializedPdu;
-        invokeEventCallback(ix::CobraConnection_EventType_Error, ss.str());
+        invokeEventCallback(ix::CobraConnection_EventType_Error, errorMsg);
     }
 
     void CobraConnection::disconnect()
     {
         _authenticated = false;
-        _webSocket->stop();
+        _webSocket.stop();
     }
 
     void CobraConnection::initWebSocketOnMessageCallback()
     {
-        _webSocket->setOnMessageCallback(
+        _webSocket.setOnMessageCallback(
             [this](ix::WebSocketMessageType messageType,
                    const std::string& str,
                    size_t wireSize,
                    const ix::WebSocketErrorInfo& error,
-                   const ix::WebSocketOpenInfo& openInfo,
-                   const ix::WebSocketCloseInfo& closeInfo)
+                   const ix::WebSocketCloseInfo& closeInfo,
+                   const ix::WebSocketHttpHeaders& headers)
             {
                 CobraConnection::invokeTrafficTrackerCallback(wireSize, true);
 
@@ -104,7 +97,7 @@ namespace ix
                 {
                     invokeEventCallback(ix::CobraConnection_EventType_Open,
                                         std::string(),
-                                        openInfo.headers);
+                                        headers);
                     sendHandshakeMessage();
                 }
                 else if (messageType == ix::WebSocket_MessageType_Close)
@@ -123,13 +116,13 @@ namespace ix
                     Json::Reader reader;
                     if (!reader.parse(str, data))
                     {
-                        invokeErrorCallback("Invalid json", str);
+                        invokeErrorCallback(std::string("Invalid json: ") + str);
                         return;
                     }
 
                     if (!data.isMember("action"))
                     {
-                        invokeErrorCallback("Missing action", str);
+                        invokeErrorCallback("Missing action");
                         return;
                     }
 
@@ -139,12 +132,12 @@ namespace ix
                     {
                         if (!handleHandshakeResponse(data))
                         {
-                            invokeErrorCallback("Error extracting nonce from handshake response", str);
+                            invokeErrorCallback("Error extracting nonce from handshake response");
                         }
                     }
                     else if (action == "auth/handshake/error")
                     {
-                        invokeErrorCallback("Handshake error", str);
+                        invokeErrorCallback("Handshake error."); // print full message ?
                     }
                     else if (action == "auth/authenticate/ok")
                     {
@@ -154,37 +147,15 @@ namespace ix
                     }
                     else if (action == "auth/authenticate/error")
                     {
-                        invokeErrorCallback("Authentication error", str);
+                        invokeErrorCallback("Authentication error."); // print full message ?
                     }
                     else if (action == "rtm/subscription/data")
                     {
                         handleSubscriptionData(data);
                     }
-                    else if (action == "rtm/subscribe/ok")
-                    {
-                        if (!handleSubscriptionResponse(data))
-                        {
-                            invokeErrorCallback("Error processing subscribe response", str);
-                        }
-                    }
-                    else if (action == "rtm/subscribe/error")
-                    {
-                        invokeErrorCallback("Subscription error", str);
-                    }
-                    else if (action == "rtm/unsubscribe/ok")
-                    {
-                        if (!handleUnsubscriptionResponse(data))
-                        {
-                            invokeErrorCallback("Error processing subscribe response", str);
-                        }
-                    }
-                    else if (action == "rtm/unsubscribe/error")
-                    {
-                        invokeErrorCallback("Unsubscription error", str);
-                    }
                     else
                     {
-                        invokeErrorCallback("Un-handled message type", str);
+                        invokeErrorCallback(std::string("Un-handled message type: ") + action);
                     }
                 }
                 else if (messageType == ix::WebSocket_MessageType_Error)
@@ -194,7 +165,7 @@ namespace ix
                     ss << "#retries: "         << error.retries     << std::endl;
                     ss << "Wait time(ms): "    << error.wait_time   << std::endl;
                     ss << "HTTP Status: "      << error.http_status << std::endl;
-                    invokeErrorCallback(ss.str(), std::string());
+                    invokeErrorCallback(ss.str());
                 }
         });
     }
@@ -221,8 +192,8 @@ namespace ix
         ss << _appkey;
 
         std::string url = ss.str();
-        _webSocket->setUrl(url);
-        _webSocket->setPerMessageDeflateOptions(webSocketPerMessageDeflateOptions);
+        _webSocket.setUrl(url);
+        _webSocket.setPerMessageDeflateOptions(webSocketPerMessageDeflateOptions);
     }
 
     //
@@ -255,7 +226,7 @@ namespace ix
         std::string serializedJson = serializeJson(pdu);
         CobraConnection::invokeTrafficTrackerCallback(serializedJson.size(), false);
 
-        return _webSocket->send(serializedJson).success;
+        return _webSocket.send(serializedJson).success;
     }
 
     // 
@@ -317,40 +288,9 @@ namespace ix
         std::string serializedJson = serializeJson(pdu);
         CobraConnection::invokeTrafficTrackerCallback(serializedJson.size(), false);
 
-        return _webSocket->send(serializedJson).success;
+        return _webSocket.send(serializedJson).success;
     }
 
-    bool CobraConnection::handleSubscriptionResponse(const Json::Value& pdu)
-    {
-        if (!pdu.isMember("body")) return false;
-        Json::Value body = pdu["body"];
-
-        if (!body.isMember("subscription_id")) return false;
-        Json::Value subscriptionId = body["subscription_id"];
-
-        if (!subscriptionId.isString()) return false;
-
-        invokeEventCallback(ix::CobraConnection_EventType_Subscribed,
-                            std::string(), WebSocketHttpHeaders(),
-                            subscriptionId.asString());
-        return true;
-    }
-
-    bool CobraConnection::handleUnsubscriptionResponse(const Json::Value& pdu)
-    {
-        if (!pdu.isMember("body")) return false;
-        Json::Value body = pdu["body"];
-
-        if (!body.isMember("subscription_id")) return false;
-        Json::Value subscriptionId = body["subscription_id"];
-
-        if (!subscriptionId.isString()) return false;
-
-        invokeEventCallback(ix::CobraConnection_EventType_UnSubscribed,
-                            std::string(), WebSocketHttpHeaders(),
-                            subscriptionId.asString());
-        return true;
-    }
 
     bool CobraConnection::handleSubscriptionData(const Json::Value& pdu)
     {
@@ -380,13 +320,13 @@ namespace ix
 
     bool CobraConnection::connect()
     {
-        _webSocket->start();
+        _webSocket.start();
         return true;
     }
 
     bool CobraConnection::isConnected() const
     {
-        return _webSocket->getReadyState() == ix::WebSocket_ReadyState_Open;
+        return _webSocket.getReadyState() == ix::WebSocket_ReadyState_Open;
     }
 
     std::string CobraConnection::serializeJson(const Json::Value& value)
@@ -441,7 +381,7 @@ namespace ix
         pdu["action"] = "rtm/subscribe";
         pdu["body"] = body;
 
-        _webSocket->send(pdu.toStyledString());
+        _webSocket.send(pdu.toStyledString());
 
         // Set the callback
         std::lock_guard<std::mutex> lock(_cbsMutex);
@@ -460,13 +400,13 @@ namespace ix
 
         // Create and send an unsubscribe pdu
         Json::Value body;
-        body["subscription_id"] = channel;
+        body["channel"] = channel;
 
         Json::Value pdu;
         pdu["action"] = "rtm/unsubscribe";
         pdu["body"] = body;
 
-        _webSocket->send(pdu.toStyledString());
+        _webSocket.send(pdu.toStyledString());
     }
 
     //
@@ -516,7 +456,7 @@ namespace ix
 
     bool CobraConnection::publishMessage(const std::string& serializedJson)
     {
-        auto webSocketSendInfo = _webSocket->send(serializedJson);
+        auto webSocketSendInfo = _webSocket.send(serializedJson);
         CobraConnection::invokeTrafficTrackerCallback(webSocketSendInfo.wireSize,
                                                        false);
         return webSocketSendInfo.success;

examples/cobra_publisher/IXCobraConnection.h

@@ -11,24 +11,19 @@
 #include <string>
 #include <thread>
 #include <unordered_map>
-#include <memory>
 
 #include <jsoncpp/json/json.h>
-#include <ixwebsocket/IXWebSocketHttpHeaders.h>
+#include <ixwebsocket/IXWebSocket.h>
 #include <ixwebsocket/IXWebSocketPerMessageDeflateOptions.h>
 
 namespace ix
 {
-    class WebSocket;
-
     enum CobraConnectionEventType
     {
         CobraConnection_EventType_Authenticated = 0,
         CobraConnection_EventType_Error = 1,
         CobraConnection_EventType_Open = 2,
-        CobraConnection_EventType_Closed = 3,
-        CobraConnection_EventType_Subscribed = 4,
-        CobraConnection_EventType_UnSubscribed = 5
+        CobraConnection_EventType_Closed = 3
     };
 
     enum CobraConnectionPublishMode
@@ -40,8 +35,7 @@ namespace ix
     using SubscriptionCallback = std::function<void(const Json::Value&)>;
     using EventCallback = std::function<void(CobraConnectionEventType,
                                              const std::string&,
-                                             const WebSocketHttpHeaders&,
-                                             const std::string&)>;
+                                             const WebSocketHttpHeaders&)>;
     using TrafficTrackerCallback = std::function<void(size_t size, bool incoming)>;
 
     class CobraConnection
@@ -106,8 +100,6 @@ namespace ix
         bool handleHandshakeResponse(const Json::Value& data);
         bool sendAuthMessage(const std::string& nonce);
         bool handleSubscriptionData(const Json::Value& pdu);
-        bool handleSubscriptionResponse(const Json::Value& pdu);
-        bool handleUnsubscriptionResponse(const Json::Value& pdu);
 
         void initWebSocketOnMessageCallback();
 
@@ -121,15 +113,13 @@ namespace ix
         /// Invoke event callbacks
         void invokeEventCallback(CobraConnectionEventType eventType,
                                  const std::string& errorMsg = std::string(),
-                                 const WebSocketHttpHeaders& headers = WebSocketHttpHeaders(),
-                                 const std::string& subscriptionId = std::string());
-        void invokeErrorCallback(const std::string& errorMsg,
-                                 const std::string& serializedPdu);
+                                 const WebSocketHttpHeaders& headers = WebSocketHttpHeaders());
+        void invokeErrorCallback(const std::string& errorMsg);
 
         ///
         /// Member variables
         /// 
-        std::unique_ptr<WebSocket> _webSocket;
+        WebSocket _webSocket;
 
         /// Configuration data
         std::string _appkey;

examples/cobra_publisher/README.md

@@ -0,0 +1,6 @@
+```
+mkdir build
+cd build
+cmake ..
+make && (cd .. ; sh cobra_publisher.sh)
+```

examples/cobra_publisher/cobra_publisher.cpp

@@ -0,0 +1,123 @@
+/*
+ *  cobra_publisher.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+ */
+
+#include <iostream>
+#include <sstream>
+#include <fstream>
+#include <atomic>
+#include <ixwebsocket/IXWebSocket.h>
+#include "IXCobraConnection.h"
+#include "jsoncpp/json/json.h"
+
+void msleep(int ms)
+{
+    std::chrono::duration<double, std::milli> duration(ms);
+    std::this_thread::sleep_for(duration);
+}
+
+int main(int argc, char* argv[])
+{
+    if (argc != 7)
+    {
+        std::cerr << "Usage error: need 6 arguments." << std::endl;
+    }
+
+    std::string endpoint = argv[1];
+    std::string appkey = argv[2];
+    std::string channel = argv[3];
+    std::string rolename = argv[4];
+    std::string rolesecret = argv[5];
+    std::string path = argv[6];
+
+    std::atomic<size_t> incomingBytes(0);
+    std::atomic<size_t> outgoingBytes(0);
+    ix::CobraConnection::setTrafficTrackerCallback(
+        [&incomingBytes, &outgoingBytes](size_t size, bool incoming)
+        {
+            if (incoming)
+            {
+                incomingBytes += size;
+            }
+            else
+            {
+                outgoingBytes += size;
+            }
+        }
+    );
+
+    bool done = false;
+    ix::CobraConnection cobraConnection;
+    ix::WebSocketPerMessageDeflateOptions webSocketPerMessageDeflateOptions(
+        true, false, false, 15, 15);
+    cobraConnection.configure(appkey, endpoint, rolename, rolesecret,
+                               webSocketPerMessageDeflateOptions);
+    cobraConnection.connect();
+    cobraConnection.setEventCallback(
+        [&cobraConnection, channel, path, &done]
+        (ix::CobraConnectionEventType eventType,
+         const std::string& errMsg,
+         const ix::WebSocketHttpHeaders& headers)
+        {
+            if (eventType == ix::CobraConnection_EventType_Open)
+            {
+                std::cout << "Handshake Headers:" << std::endl;
+                for (auto it : headers)
+                {
+                    std::cout << it.first << ": " << it.second << std::endl;
+                }
+            }
+            else if (eventType == ix::CobraConnection_EventType_Authenticated)
+            {
+                std::cout << "Authenticated" << std::endl;
+
+                std::string line;
+                std::ifstream f(path);
+                if (!f.is_open())
+                {
+                    std::cerr << "Error while opening file: " << path << std::endl;
+                }
+
+                int n = 0;
+                while (getline(f, line))
+                {
+                    Json::Value value;
+                    Json::Reader reader;
+                    reader.parse(line, value);
+
+                    cobraConnection.publish(channel, value);
+                    n++;
+                }
+                std::cerr << "#published messages: " << n << std::endl;
+
+                if (f.bad())
+                {
+                    std::cerr << "Error while opening file: " << path << std::endl;
+                }
+
+                done = true;
+            }
+            else if (eventType == ix::CobraConnection_EventType_Error)
+            {
+                std::cerr << "Cobra Error received: " << errMsg << std::endl;
+                done = true;
+            }
+            else if (eventType == ix::CobraConnection_EventType_Closed)
+            {
+                std::cerr << "Cobra connection closed" << std::endl;
+            }
+        }
+    );
+
+    while (!done)
+    {
+        msleep(1);
+    }
+
+    std::cout << "Incoming bytes: " << incomingBytes << std::endl;
+    std::cout << "Outgoing bytes: " << outgoingBytes << std::endl;
+
+    return 0;
+}

examples/cobra_publisher/cobra_publisher.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+endpoint="ws://127.0.0.1:8765"
+endpoint="ws://127.0.0.1:5678"
+appkey="appkey"
+channel="foo"
+rolename="a_role"
+rolesecret="a_secret"
+filename=${FILENAME:=events.jsonl}
+
+build/cobra_publisher $endpoint $appkey $channel $rolename $rolesecret $filename

examples/cobra_publisher/devnull_server.js

@@ -0,0 +1,45 @@
+/*
+ *  devnull_server.js
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+ */
+const WebSocket = require('ws');
+
+let wss = new WebSocket.Server({ port: 5678, perMessageDeflate: true })
+
+wss.on('connection', (ws) => {
+
+  let handshake = false
+  let authenticated = false
+
+  ws.on('message', (data) => {
+
+    console.log(data.toString('utf-8'))
+
+    if (!handshake) {
+      let response = {
+          "action": "auth/handshake/ok",
+          "body": {
+              "data": {
+                  "nonce": "MTI0Njg4NTAyMjYxMzgxMzgzMg==",
+                  "version": "0.0.24"
+              }
+          },
+          "id": 1
+      }
+      ws.send(JSON.stringify(response))
+      handshake = true
+    } else if (!authenticated) {
+      let response = {
+        "action": "auth/authenticate/ok",
+        "body": {},
+        "id": 2
+      }
+      
+      ws.send(JSON.stringify(response))
+      authenticated = true
+    } else {
+      console.log(data)
+    }
+  });
+})

examples/cobra_publisher/devnull_server.py

@@ -0,0 +1,43 @@
+#!/usr/bin/env python
+
+import os
+import json
+import asyncio
+import websockets
+
+
+async def echo(websocket, path):
+    handshake = False
+    authenticated = False
+
+    async for message in websocket:
+        print(message)
+
+        if not handshake:
+            response = {
+                "action": "auth/handshake/ok",
+                "body": {
+                    "data": {
+                        "nonce": "MTI0Njg4NTAyMjYxMzgxMzgzMg==",
+                        "version": "0.0.24"
+                    }
+                },
+                "id": 1
+            }
+            await websocket.send(json.dumps(response))
+            handshake = True
+
+        elif not authenticated:
+            response = {
+                "action": "auth/authenticate/ok",
+                "body": {},
+                "id": 2
+            }
+          
+            await websocket.send(json.dumps(response))
+            authenticated = True
+
+
+asyncio.get_event_loop().run_until_complete(
+    websockets.serve(echo, 'localhost', 5678))
+asyncio.get_event_loop().run_forever()

examples/cobra_publisher/events.jsonl

@@ -0,0 +1,3 @@
+{"array":[1,2,3],"boolean":true,"color":"#82b92c","null":null,"number":123,"object":{"a":"b","c":"d","e":"f"},"string":"Foo"}
+{"array":[1,2,3],"boolean":true,"color":"#82b92c","null":null,"number":123,"object":{"a":"b","c":"d","e":"f"},"string":"Bar"}
+{"array":[1,2,3],"boolean":true,"color":"#82b92c","null":null,"number":123,"object":{"a":"b","c":"d","e":"f"},"string":"Baz"}

examples/cobra_publisher/ixcrypto/IXBase64.cpp

@@ -1,39 +1,39 @@
 /*
  base64.cpp and base64.h
-
+ 
  Copyright (C) 2004-2008 René Nyffenegger
-
+ 
  This source code is provided 'as-is', without any express or implied
  warranty. In no event will the author be held liable for any damages
  arising from the use of this software.
-
+ 
  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:
-
+ 
  1. The origin of this source code must not be misrepresented; you must not
  claim that you wrote the original source code. If you use this source code
  in a product, an acknowledgment in the product documentation would be
  appreciated but is not required.
-
+ 
  2. Altered source versions must be plainly marked as such, and must not be
  misrepresented as being the original source code.
-
+ 
  3. This notice may not be removed or altered from any source distribution.
-
+ 
  René Nyffenegger rene.nyffenegger@adp-gmbh.ch
-
+ 
  */
 
 #include "IXBase64.h"
-
+    
 namespace ix
 {
     static const std::string base64_chars =
     "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
     "abcdefghijklmnopqrstuvwxyz"
     "0123456789+/";
-
+    
     std::string base64_encode(const std::string& data, size_t len)
     {
         std::string ret;
@@ -41,9 +41,9 @@ namespace ix
         int j = 0;
         unsigned char char_array_3[3];
         unsigned char char_array_4[4];
-
+        
         const char* bytes_to_encode = data.c_str();
-
+        
         while(len--)
         {
             char_array_3[i++] = *(bytes_to_encode++);
@@ -53,83 +53,32 @@ namespace ix
                 char_array_4[1] = ((char_array_3[0] & 0x03) << 4) + ((char_array_3[1] & 0xf0) >> 4);
                 char_array_4[2] = ((char_array_3[1] & 0x0f) << 2) + ((char_array_3[2] & 0xc0) >> 6);
                 char_array_4[3] = char_array_3[2] & 0x3f;
-
+                
                 for(i = 0; (i <4) ; i++)
                     ret += base64_chars[char_array_4[i]];
-
+                
                 i = 0;
             }
         }
-
+        
         if(i)
         {
             for(j = i; j < 3; j++)
                 char_array_3[j] = '\0';
-
+            
             char_array_4[0] = (char_array_3[0] & 0xfc) >> 2;
             char_array_4[1] = ((char_array_3[0] & 0x03) << 4) + ((char_array_3[1] & 0xf0) >> 4);
             char_array_4[2] = ((char_array_3[1] & 0x0f) << 2) + ((char_array_3[2] & 0xc0) >> 6);
             char_array_4[3] = char_array_3[2] & 0x3f;
-
+            
             for(j = 0; (j < i + 1); j++)
                 ret += base64_chars[char_array_4[j]];
-
+            
             while((i++ < 3))
                 ret += '=';
-
+            
         }
-
-        return ret;
-    }
-
-    static inline bool is_base64(unsigned char c)
-    {
-        return (isalnum(c) || (c == '+') || (c == '/'));
-    }
-
-    std::string base64_decode(const std::string& encoded_string)
-    {
-        int in_len = (int)encoded_string.size();
-        int i = 0;
-        int j = 0;
-        int in_ = 0;
-        unsigned char char_array_4[4], char_array_3[3];
-        std::string ret;
-
-        while(in_len-- && ( encoded_string[in_] != '=') && is_base64(encoded_string[in_]))
-        {
-            char_array_4[i++] = encoded_string[in_]; in_++;
-            if(i ==4)
-            {
-                for(i = 0; i <4; i++)
-                    char_array_4[i] = base64_chars.find(char_array_4[i]);
-
-                char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4);
-                char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);
-                char_array_3[2] = ((char_array_4[2] & 0x3) << 6) + char_array_4[3];
-
-                for(i = 0; (i < 3); i++)
-                    ret += char_array_3[i];
-
-                i = 0;
-            }
-        }
-
-        if(i)
-        {
-            for(j = i; j <4; j++)
-                char_array_4[j] = 0;
-
-            for(j = 0; j <4; j++)
-                char_array_4[j] = base64_chars.find(char_array_4[j]);
-
-            char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4);
-            char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);
-            char_array_3[2] = ((char_array_4[2] & 0x3) << 6) + char_array_4[3];
-
-            for(j = 0; (j < i - 1); j++) ret += char_array_3[j];
-        }
-
+        
         return ret;
     }
 }

examples/cobra_publisher/ixcrypto/IXBase64.h

@@ -11,5 +11,4 @@
 namespace ix
 {
     std::string base64_encode(const std::string& data, size_t len);
-    std::string base64_decode(const std::string& encoded_string);
 }

examples/cobra_publisher/ixcrypto/IXHMac.cpp

@@ -6,11 +6,7 @@
 #include "IXHMac.h"
 #include "IXBase64.h"
 
-#ifdef __APPLE__
-# include <CommonCrypto/CommonHMAC.h>
-#else
-# include <openssl/hmac.h>
-#endif
+#include <openssl/hmac.h>
 
 namespace ix
 {
@@ -19,17 +15,10 @@ namespace ix
         constexpr size_t hashSize = 16;
         unsigned char hash[hashSize];
 
-#ifdef __APPLE__
-        CCHmac(kCCHmacAlgMD5,
-               key.c_str(), key.size(),
-               data.c_str(), data.size(),
-               &hash);
-#else
         HMAC(EVP_md5(),
              key.c_str(), (int) key.size(),
              (unsigned char *) data.c_str(), (int) data.size(),
              (unsigned char *) hash, nullptr);
-#endif
 
         std::string hashString(reinterpret_cast<char*>(hash), hashSize);
 

examples/cobra_publisher/jsoncpp/json/json-forwards.h

@@ -7,28 +7,28 @@
 // //////////////////////////////////////////////////////////////////////
 
 /*
-The JsonCpp library's source code, including accompanying documentation,
+The JsonCpp library's source code, including accompanying documentation, 
 tests and demonstration applications, are licensed under the following
 conditions...
 
-Baptiste Lepilleur and The JsonCpp Authors explicitly disclaim copyright in all
-jurisdictions which recognize such a disclaimer. In such jurisdictions,
+Baptiste Lepilleur and The JsonCpp Authors explicitly disclaim copyright in all 
+jurisdictions which recognize such a disclaimer. In such jurisdictions, 
 this software is released into the Public Domain.
 
 In jurisdictions which do not recognize Public Domain property (e.g. Germany as of
 2010), this software is Copyright (c) 2007-2010 by Baptiste Lepilleur and
 The JsonCpp Authors, and is released under the terms of the MIT License (see below).
 
-In jurisdictions which recognize Public Domain property, the user of this
-software may choose to accept it either as 1) Public Domain, 2) under the
-conditions of the MIT License (see below), or 3) under the terms of dual
+In jurisdictions which recognize Public Domain property, the user of this 
+software may choose to accept it either as 1) Public Domain, 2) under the 
+conditions of the MIT License (see below), or 3) under the terms of dual 
 Public Domain/MIT License conditions described here, as they choose.
 
 The MIT License is about as close to Public Domain as a license can get, and is
 described in clear, concise terms at:
 
    http://en.wikipedia.org/wiki/MIT_License
-
+   
 The full text of the MIT License follows:
 
 ========================================================================

examples/cobra_publisher/jsoncpp/json/json.h

@@ -6,28 +6,28 @@
 // //////////////////////////////////////////////////////////////////////
 
 /*
-The JsonCpp library's source code, including accompanying documentation,
+The JsonCpp library's source code, including accompanying documentation, 
 tests and demonstration applications, are licensed under the following
 conditions...
 
-Baptiste Lepilleur and The JsonCpp Authors explicitly disclaim copyright in all
-jurisdictions which recognize such a disclaimer. In such jurisdictions,
+Baptiste Lepilleur and The JsonCpp Authors explicitly disclaim copyright in all 
+jurisdictions which recognize such a disclaimer. In such jurisdictions, 
 this software is released into the Public Domain.
 
 In jurisdictions which do not recognize Public Domain property (e.g. Germany as of
 2010), this software is Copyright (c) 2007-2010 by Baptiste Lepilleur and
 The JsonCpp Authors, and is released under the terms of the MIT License (see below).
 
-In jurisdictions which recognize Public Domain property, the user of this
-software may choose to accept it either as 1) Public Domain, 2) under the
-conditions of the MIT License (see below), or 3) under the terms of dual
+In jurisdictions which recognize Public Domain property, the user of this 
+software may choose to accept it either as 1) Public Domain, 2) under the 
+conditions of the MIT License (see below), or 3) under the terms of dual 
 Public Domain/MIT License conditions described here, as they choose.
 
 The MIT License is about as close to Public Domain as a license can get, and is
 described in clear, concise terms at:
 
    http://en.wikipedia.org/wiki/MIT_License
-
+   
 The full text of the MIT License follows:
 
 ========================================================================
@@ -1673,7 +1673,7 @@ public:
     - `"rejectDupKeys": false or true`
       - If true, `parse()` returns false when a key is duplicated within an object.
     - `"allowSpecialFloats": false or true`
-      - If true, special float values (NaNs and infinities) are allowed
+      - If true, special float values (NaNs and infinities) are allowed 
         and their values are lossfree restorable.
 
     You can examine 'settings_` yourself

examples/cobra_publisher/jsoncpp/jsoncpp.cpp

@@ -6,28 +6,28 @@
 // //////////////////////////////////////////////////////////////////////
 
 /*
-The JsonCpp library's source code, including accompanying documentation,
+The JsonCpp library's source code, including accompanying documentation, 
 tests and demonstration applications, are licensed under the following
 conditions...
 
-Baptiste Lepilleur and The JsonCpp Authors explicitly disclaim copyright in all
-jurisdictions which recognize such a disclaimer. In such jurisdictions,
+Baptiste Lepilleur and The JsonCpp Authors explicitly disclaim copyright in all 
+jurisdictions which recognize such a disclaimer. In such jurisdictions, 
 this software is released into the Public Domain.
 
 In jurisdictions which do not recognize Public Domain property (e.g. Germany as of
 2010), this software is Copyright (c) 2007-2010 by Baptiste Lepilleur and
 The JsonCpp Authors, and is released under the terms of the MIT License (see below).
 
-In jurisdictions which recognize Public Domain property, the user of this
-software may choose to accept it either as 1) Public Domain, 2) under the
-conditions of the MIT License (see below), or 3) under the terms of dual
+In jurisdictions which recognize Public Domain property, the user of this 
+software may choose to accept it either as 1) Public Domain, 2) under the 
+conditions of the MIT License (see below), or 3) under the terms of dual 
 Public Domain/MIT License conditions described here, as they choose.
 
 The MIT License is about as close to Public Domain as a license can get, and is
 described in clear, concise terms at:
 
    http://en.wikipedia.org/wiki/MIT_License
-
+   
 The full text of the MIT License follows:
 
 ========================================================================
@@ -238,7 +238,7 @@ static inline void fixNumericLocaleInput(char* begin, char* end) {
 #include <limits>
 
 #if defined(_MSC_VER)
-#if !defined(WINCE) && defined(__STDC_SECURE_LIB__) && _MSC_VER >= 1500 // VC++ 9.0 and above
+#if !defined(WINCE) && defined(__STDC_SECURE_LIB__) && _MSC_VER >= 1500 // VC++ 9.0 and above 
 #define snprintf sprintf_s
 #elif _MSC_VER >= 1900 // VC++ 14.0 and above
 #define snprintf std::snprintf
@@ -383,7 +383,7 @@ bool Reader::parse(const char* beginDoc,
 
 bool Reader::readValue() {
   // readValue() may call itself only if it calls readObject() or ReadArray().
-  // These methods execute nodes_.push() just before and nodes_.pop)() just after calling readValue().
+  // These methods execute nodes_.push() just before and nodes_.pop)() just after calling readValue(). 
   // parse() executes one nodes_.push(), so > instead of >=.
   if (nodes_.size() > stackLimit_g) throwRuntimeError("Exceeded stackLimit in readValue().");
 
@@ -4215,7 +4215,7 @@ Value& Path::make(Value& root) const {
 #endif
 #endif
 
-#if defined(__BORLANDC__)
+#if defined(__BORLANDC__)  
 #include <float.h>
 #define isfinite _finite
 #define snprintf _snprintf
@@ -5290,7 +5290,7 @@ StreamWriter* StreamWriterBuilder::newStreamWriter() const
   JSONCPP_STRING cs_str = settings_["commentStyle"].asString();
   bool eyc = settings_["enableYAMLCompatibility"].asBool();
   bool dnp = settings_["dropNullPlaceholders"].asBool();
-  bool usf = settings_["useSpecialFloats"].asBool();
+  bool usf = settings_["useSpecialFloats"].asBool(); 
   unsigned int pre = settings_["precision"].asUInt();
   CommentStyle::Enum cs = CommentStyle::All;
   if (cs_str == "All") {

examples/cobra_publisher/package-lock.json

@@ -8,9 +8,9 @@
       "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg=="
     },
     "ws": {
-      "version": "6.2.0",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-6.2.0.tgz",
-      "integrity": "sha512-deZYUNlt2O4buFCa3t5bKLf8A7FPP/TVjwOeVNpw818Ma5nk4MLXls2eoEGS39o8119QIYxTrTDoPQ5B/gTD6w==",
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-6.1.0.tgz",
+      "integrity": "sha512-H3dGVdGvW2H8bnYpIDc3u3LH8Wue3Qh+Zto6aXXFzvESkTVT6rAfKR6tR/+coaUvxs8yHtmNV0uioBF62ZGSTg==",
       "requires": {
         "async-limiter": "1.0.0"
       }

examples/echo_server/CMakeLists.txt

@@ -0,0 +1,30 @@
+#
+# Author: Benjamin Sergeant
+# Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+#
+
+cmake_minimum_required (VERSION 3.4.1)
+project (echo_server)
+
+# There's -Weverything too for clang
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic -Wshorten-64-to-32")
+
+set (OPENSSL_PREFIX /usr/local/opt/openssl) # Homebrew openssl
+
+set (CMAKE_CXX_STANDARD 14)
+
+option(USE_TLS "Add TLS support" ON)
+
+add_subdirectory(${PROJECT_SOURCE_DIR}/../.. ixwebsocket)
+
+include_directories(echo_server .)
+
+add_executable(echo_server 
+  echo_server.cpp)
+
+if (APPLE AND USE_TLS)
+    target_link_libraries(echo_server "-framework foundation" "-framework security")
+endif()
+
+target_link_libraries(echo_server ixwebsocket)
+install(TARGETS echo_server DESTINATION bin)

examples/echo_server/echo_server.cpp

@@ -0,0 +1,68 @@
+/*
+ *  echo_server.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+ */
+
+#include <iostream>
+#include <sstream>
+#include <ixwebsocket/IXWebSocketServer.h>
+
+int main(int argc, char** argv)
+{
+    int port = 8080;
+    if (argc == 2)
+    {
+        std::stringstream ss;
+        ss << argv[1];
+        ss >> port;
+    }
+
+    ix::WebSocketServer server(port);
+
+    server.setOnConnectionCallback(
+        [&server](std::shared_ptr<ix::WebSocket> webSocket)
+        {
+            webSocket->setOnMessageCallback(
+                [webSocket, &server](ix::WebSocketMessageType messageType,
+                   const std::string& str,
+                   size_t wireSize,
+                   const ix::WebSocketErrorInfo& error,
+                   const ix::WebSocketOpenInfo& openInfo,
+                   const ix::WebSocketCloseInfo& closeInfo)
+                {
+                    if (messageType == ix::WebSocket_MessageType_Open)
+                    {
+                        std::cerr << "New connection" << std::endl;
+                        std::cerr << "Uri: " << openInfo.uri << std::endl;
+                        std::cerr << "Headers:" << std::endl;
+                        for (auto it : openInfo.headers)
+                        {
+                            std::cerr << it.first << ": " << it.second << std::endl;
+                        }
+                    }
+                    else if (messageType == ix::WebSocket_MessageType_Close)
+                    {
+                        std::cerr << "Closed connection" << std::endl;
+                    }
+                    else if (messageType == ix::WebSocket_MessageType_Message)
+                    {
+                        webSocket->send(str);
+                    }
+                }
+            );
+        }
+    );
+
+    auto res = server.listen();
+    if (!res.first)
+    {
+        std::cerr << res.second << std::endl;
+        return 1;
+    }
+
+    server.start();
+    server.wait();
+
+    return 0;
+}

examples/ping_pong/.gitignore

@@ -1 +1,2 @@
+venv
 build

examples/ping_pong/CMakeLists.txt

@@ -0,0 +1,27 @@
+#
+# Author: Benjamin Sergeant
+# Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+#
+
+cmake_minimum_required (VERSION 3.4.1)
+project (ping_pong)
+
+set (CMAKE_CXX_STANDARD 14)
+
+option(USE_TLS "Add TLS support" ON)
+
+add_subdirectory(${PROJECT_SOURCE_DIR}/../.. ixwebsocket)
+
+add_executable(ping_pong ping_pong.cpp)
+
+if (APPLE AND USE_TLS)
+    target_link_libraries(ping_pong "-framework foundation" "-framework security")
+endif()
+
+if (WIN32)
+    target_link_libraries(ping_pong wsock32 ws2_32)
+    add_definitions(-D_CRT_SECURE_NO_WARNINGS)
+endif()
+
+target_link_libraries(ping_pong ixwebsocket)
+install(TARGETS ping_pong DESTINATION bin)

examples/ping_pong/build_linux.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+#
+# Author: Benjamin Sergeant
+# Copyright (c) 2017-2018 Machine Zone, Inc. All rights reserved.
+#
+
+# 'manual' way of building. You can also use cmake.
+
+g++ --std=c++11 \
+    ../../ixwebsocket/IXSocket.cpp	\
+    ../../ixwebsocket/IXWebSocketTransport.cpp \
+    ../../ixwebsocket/IXWebSocket.cpp \
+    -I ../.. \
+    cmd_websocket_chat.cpp \
+    -o cmd_websocket_chat

examples/ping_pong/client.py

@@ -0,0 +1,17 @@
+#!/usr/bin/env python
+
+import asyncio
+import websockets
+
+async def hello(uri):
+    async with websockets.connect(uri) as websocket:
+        await websocket.send("Hello world!")
+        response = await websocket.recv()
+        print(response)
+
+        pong_waiter = await websocket.ping('coucou')
+        ret = await pong_waiter   # only if you want to wait for the pong
+        print(ret)
+
+asyncio.get_event_loop().run_until_complete(
+    hello('ws://localhost:5678'))

examples/ping_pong/ping_pong.cpp

@@ -1,7 +1,7 @@
 /*
- *  ws_ping_pong.cpp
+ *  ping_pong.cpp
  *  Author: Benjamin Sergeant
- *  Copyright (c) 2018-2019 Machine Zone, Inc. All rights reserved.
+ *  Copyright (c) 2017-2018 Machine Zone, Inc. All rights reserved.
  */
 
 #include <iostream>
@@ -9,8 +9,15 @@
 #include <ixwebsocket/IXWebSocket.h>
 #include <ixwebsocket/IXSocket.h>
 
-namespace ix
+using namespace ix;
+
+namespace
 {
+    void log(const std::string& msg)
+    {
+        std::cout << msg << std::endl;
+    }
+
     class WebSocketPingPong
     {
         public:
@@ -26,8 +33,6 @@ namespace ix
         private:
             std::string _url;
             ix::WebSocket _webSocket;
-
-            void log(const std::string& msg);
     };
 
     WebSocketPingPong::WebSocketPingPong(const std::string& url) :
@@ -36,11 +41,6 @@ namespace ix
         ;
     }
 
-    void WebSocketPingPong::log(const std::string& msg)
-    {
-        std::cout << msg << std::endl;
-    }
-
     void WebSocketPingPong::stop()
     {
         _webSocket.stop();
@@ -61,19 +61,10 @@ namespace ix
                const ix::WebSocketOpenInfo& openInfo,
                const ix::WebSocketCloseInfo& closeInfo)
             {
-                std::cerr << "Received " << wireSize << " bytes" << std::endl;
-
                 std::stringstream ss;
                 if (messageType == ix::WebSocket_MessageType_Open)
                 {
                     log("ping_pong: connected");
-
-                    std::cout << "Uri: " << openInfo.uri << std::endl;
-                    std::cout << "Handshake Headers:" << std::endl;
-                    for (auto it : openInfo.headers)
-                    {
-                        std::cout << it.first << ": " << it.second << std::endl;
-                    }
                 }
                 else if (messageType == ix::WebSocket_MessageType_Close)
                 {
@@ -133,7 +124,7 @@ namespace ix
         _webSocket.send(text);
     }
 
-    int ws_ping_pong_main(const std::string& url)
+    void interactiveMain(const std::string& url)
     {
         std::cout << "Type Ctrl-D to exit prompt..." << std::endl;
         WebSocketPingPong webSocketPingPong(url);
@@ -162,7 +153,19 @@ namespace ix
 
         std::cout << std::endl;
         webSocketPingPong.stop();
-
-        return 0;
     }
 }
+
+int main(int argc, char** argv)
+{
+    if (argc != 2)
+    {
+        std::cerr << "Usage: ping_pong <url>" << std::endl;
+        return 1;
+    }
+    std::string url = argv[1];
+
+    Socket::init();
+    interactiveMain(url);
+    return 0;
+}

examples/ping_pong/server.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python
+
+import os
+import asyncio
+import websockets
+
+async def echo(websocket, path):
+    async for message in websocket:
+        print(message)
+        await websocket.send(message)
+
+        if os.getenv('TEST_CLOSE'):
+            print('Closing')
+            # breakpoint()
+            await websocket.close(1001, 'close message')
+            # await websocket.close()
+            break
+
+asyncio.get_event_loop().run_until_complete(
+    websockets.serve(echo, 'localhost', 5678))
+asyncio.get_event_loop().run_forever()

examples/ping_pong/test.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+test -d build || {
+    mkdir -p build
+    cd build
+    cmake ..
+}
+(cd build ; make)
+./build/ping_pong ws://localhost:5678

examples/ws_connect/.gitignore

@@ -0,0 +1,3 @@
+build
+venv
+node_modules

examples/ws_connect/CMakeLists.txt

@@ -0,0 +1,22 @@
+#
+# Author: Benjamin Sergeant
+# Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+#
+
+cmake_minimum_required (VERSION 3.4.1)
+project (ws_connect)
+
+set (CMAKE_CXX_STANDARD 14)
+
+option(USE_TLS "Add TLS support" ON)
+
+add_subdirectory(${PROJECT_SOURCE_DIR}/../.. ixwebsocket)
+
+add_executable(ws_connect ws_connect.cpp)
+
+if (APPLE AND USE_TLS)
+    target_link_libraries(ws_connect "-framework foundation" "-framework security")
+endif()
+
+target_link_libraries(ws_connect ixwebsocket)
+install(TARGETS ws_connect DESTINATION bin)

examples/ws_connect/README.md

@@ -0,0 +1,11 @@
+# Building
+
+1. mkdir build
+2. cd build
+3. cmake ..
+4. make
+
+## Disable TLS
+
+* Enable: `cmake -DUSE_TLS=OFF ..`
+* Disable: `cmake -DUSE_TLS=ON ..`

examples/ws_connect/build_linux.sh

@@ -0,0 +1,25 @@
+#!/bin/sh
+#
+# Author: Benjamin Sergeant
+# Copyright (c) 2017-2018 Machine Zone, Inc. All rights reserved.
+#
+
+# 'manual' way of building. You can also use cmake.
+
+g++ --std=c++11 \
+    -DIXWEBSOCKET_USE_TLS \
+    -g \
+    ../../ixwebsocket/IXEventFd.cpp	\
+    ../../ixwebsocket/IXSocket.cpp	\
+    ../../ixwebsocket/IXSetThreadName.cpp	\
+    ../../ixwebsocket/IXWebSocketTransport.cpp \
+    ../../ixwebsocket/IXWebSocket.cpp \
+    ../../ixwebsocket/IXDNSLookup.cpp \
+    ../../ixwebsocket/IXSocketConnect.cpp \
+    ../../ixwebsocket/IXSocketOpenSSL.cpp \
+    ../../ixwebsocket/IXWebSocketPerMessageDeflate.cpp \
+    ../../ixwebsocket/IXWebSocketPerMessageDeflateOptions.cpp \
+    -I ../.. \
+    ws_connect.cpp \
+    -o ws_connect \
+    -lcrypto -lssl -lz -lpthread

examples/ws_connect/ws_connect.cpp

@@ -9,8 +9,15 @@
 #include <ixwebsocket/IXWebSocket.h>
 #include <ixwebsocket/IXSocket.h>
 
-namespace ix
+using namespace ix;
+
+namespace
 {
+    void log(const std::string& msg)
+    {
+        std::cout << msg << std::endl;
+    }
+
     class WebSocketConnect
     {
         public:
@@ -25,8 +32,6 @@ namespace ix
         private:
             std::string _url;
             ix::WebSocket _webSocket;
-
-            void log(const std::string& msg);
     };
 
     WebSocketConnect::WebSocketConnect(const std::string& url) :
@@ -35,11 +40,6 @@ namespace ix
         ;
     }
 
-    void WebSocketConnect::log(const std::string& msg)
-    {
-        std::cout << msg << std::endl;
-    }
-
     void WebSocketConnect::stop()
     {
         _webSocket.stop();
@@ -84,8 +84,6 @@ namespace ix
                 }
                 else if (messageType == ix::WebSocket_MessageType_Message)
                 {
-                    std::cerr << "Received " << wireSize << " bytes" << std::endl;
-
                     ss << "ws_connect: received message: "
                        << str;
                     log(ss.str());
@@ -150,11 +148,18 @@ namespace ix
         std::cout << std::endl;
         webSocketChat.stop();
     }
-
-    int ws_connect_main(const std::string& url)
-    {
-        interactiveMain(url);
-        return 0;
-    }
 }
 
+int main(int argc, char** argv)
+{
+    if (argc != 2)
+    {
+        std::cerr << "Usage: ws_connect <url>" << std::endl;
+        return 1;
+    }
+    std::string url = argv[1];
+
+    Socket::init();
+    interactiveMain(url);
+    return 0;
+}

ixwebsocket/IXCancellationRequest.cpp

@@ -8,7 +8,7 @@
 
 #include <chrono>
 
-namespace ix
+namespace ix 
 {
     CancellationRequest makeCancellationRequestWithTimeout(int secs,
                                                            std::atomic<bool>& requestInitCancellation)
@@ -20,7 +20,7 @@ namespace ix
         {
             // Was an explicit cancellation requested ?
             if (requestInitCancellation) return true;
-
+            
             auto now = std::chrono::system_clock::now();
             if ((now - start) > timeout) return true;
 

ixwebsocket/IXCancellationRequest.h

@@ -9,7 +9,7 @@
 #include <functional>
 #include <atomic>
 
-namespace ix
+namespace ix 
 {
     using CancellationRequest = std::function<bool()>;
 

ixwebsocket/IXConnectionState.cpp

@@ -1,43 +0,0 @@
-/*
- *  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>();
-    }
-
-    bool ConnectionState::isTerminated() const
-    {
-        return _terminated;
-    }
-
-    bool ConnectionState::setTerminated()
-    {
-        _terminated = true;
-    }
-}
-

ixwebsocket/IXConnectionState.h

@@ -1,37 +0,0 @@
-/*
- *  IXConnectionState.h
- *  Author: Benjamin Sergeant
- *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
- */
-
-#pragma once
-
-#include <stdint.h>
-#include <string>
-#include <atomic>
-#include <memory>
-
-namespace ix
-{
-    class ConnectionState {
-    public:
-        ConnectionState();
-        virtual ~ConnectionState() = default;
-
-        virtual void computeId();
-        virtual const std::string& getId() const;
-
-        bool setTerminated();
-        bool isTerminated() const;
-
-        static std::shared_ptr<ConnectionState> createConnectionState();
-
-    protected:
-        std::atomic<bool> _terminated;
-        std::string _id;
-
-        static std::atomic<uint64_t> _globalId;
-    };
-}
-
-

ixwebsocket/IXDNSLookup.cpp

@@ -10,7 +10,7 @@
 #include <string.h>
 #include <chrono>
 
-namespace ix
+namespace ix 
 {
     const int64_t DNSLookup::kDefaultWait = 10; // ms
 
@@ -26,7 +26,7 @@ namespace ix
         _done(false),
         _id(_nextId++)
     {
-
+        
     }
 
     DNSLookup::~DNSLookup()
@@ -36,7 +36,7 @@ namespace ix
         _activeJobs.erase(_id);
     }
 
-    struct addrinfo* DNSLookup::getAddrInfo(const std::string& hostname,
+    struct addrinfo* DNSLookup::getAddrInfo(const std::string& hostname, 
                                             int port,
                                             std::string& errMsg)
     {
@@ -49,7 +49,7 @@ namespace ix
         std::string sport = std::to_string(port);
 
         struct addrinfo* res;
-        int getaddrinfo_result = getaddrinfo(hostname.c_str(), sport.c_str(),
+        int getaddrinfo_result = getaddrinfo(hostname.c_str(), sport.c_str(), 
                                              &hints, &res);
         if (getaddrinfo_result)
         {
@@ -73,7 +73,7 @@ namespace ix
         errMsg = "no error";
 
         // Maybe a cancellation request got in before the background thread terminated ?
-        if (isCancellationRequested && isCancellationRequested())
+        if (isCancellationRequested())
         {
             errMsg = "cancellation requested";
             return nullptr;
@@ -101,7 +101,7 @@ namespace ix
             _activeJobs.insert(_id);
         }
 
-        //
+        // 
         // Good resource on thread forced termination
         // https://www.bo-yang.net/2017/11/19/cpp-kill-detached-thread
         //
@@ -121,7 +121,7 @@ namespace ix
             }
 
             // Were we cancelled ?
-            if (isCancellationRequested && isCancellationRequested())
+            if (isCancellationRequested())
             {
                 errMsg = "cancellation requested";
                 return nullptr;
@@ -129,7 +129,7 @@ namespace ix
         }
 
         // Maybe a cancellation request got in before the bg terminated ?
-        if (isCancellationRequested && isCancellationRequested())
+        if (isCancellationRequested())
         {
             errMsg = "cancellation requested";
             return nullptr;
@@ -141,7 +141,7 @@ namespace ix
     void DNSLookup::run(uint64_t id, const 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
+        // gone, so we use temporary variables (res) or we pass in by copy everything that 
         // getAddrInfo needs to work.
         std::string errMsg;
         struct addrinfo* res = getAddrInfo(hostname, port, errMsg);

ixwebsocket/IXDNSLookup.h

@@ -3,7 +3,7 @@
  *  Author: Benjamin Sergeant
  *  Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
  *
- *  Resolve a hostname+port to a struct addrinfo obtained with getaddrinfo
+ *  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.
  */
@@ -20,7 +20,7 @@
 
 struct addrinfo;
 
-namespace ix
+namespace ix 
 {
     class DNSLookup {
     public:
@@ -39,7 +39,7 @@ namespace ix
         struct addrinfo* resolveBlocking(std::string& errMsg,
                                          const CancellationRequest& isCancellationRequested);
 
-        static struct addrinfo* getAddrInfo(const std::string& hostname,
+        static struct addrinfo* getAddrInfo(const std::string& hostname, 
                                             int port,
                                             std::string& errMsg);
 

ixwebsocket/IXEventFd.cpp

@@ -0,0 +1,82 @@
+/*
+ *  IXEventFd.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+ */
+
+//
+// Linux/Android has a special type of virtual files. select(2) will react
+// when reading/writing to those files, unlike closing sockets.
+//
+// https://linux.die.net/man/2/eventfd
+// http://www.sourcexr.com/articles/2013/10/26/lightweight-inter-process-signaling-with-eventfd
+//
+// eventfd was added in Linux kernel 2.x, and our oldest Android (Kitkat 4.4)
+// is on Kernel 3.x
+//
+// cf Android/Kernel table here 
+// https://android.stackexchange.com/questions/51651/which-android-runs-which-linux-kernel
+//
+
+#include "IXEventFd.h"
+
+#ifdef __linux__
+# include <sys/eventfd.h>
+#endif
+
+#ifndef _WIN32
+#include <unistd.h> // for write
+#endif
+
+namespace ix 
+{
+    EventFd::EventFd() : 
+        _eventfd(-1)
+    {
+#ifdef __linux__
+        _eventfd = eventfd(0, 0);
+#endif
+    }
+
+    EventFd::~EventFd()
+    {
+#ifdef __linux__
+        ::close(_eventfd);
+#endif
+    }
+
+    bool EventFd::notify()
+    {
+#if defined(__linux__)
+        if (_eventfd == -1) return false;
+
+        // select will wake up when a non-zero value is written to our eventfd
+        uint64_t value = 1;
+
+        // we should write 8 bytes for an uint64_t
+        return write(_eventfd, &value, sizeof(value)) == 8;
+#else
+        return true;
+#endif
+    }
+
+    bool EventFd::clear()
+    {
+#if defined(__linux__)
+        if (_eventfd == -1) return false;
+
+        // 0 is a special value ; select will not wake up 
+        uint64_t value = 0;
+
+        // we should write 8 bytes for an uint64_t
+        return write(_eventfd, &value, sizeof(value)) == 8;
+#else
+        return true;
+#endif
+    }
+
+    int EventFd::getFd()
+    {
+        return _eventfd;
+    }
+}

ixwebsocket/IXEventFd.h

@@ -0,0 +1,23 @@
+/*
+ *  IXEventFd.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
+ */
+
+#pragma once
+
+namespace ix 
+{
+    class EventFd {
+    public:
+        EventFd();
+        virtual ~EventFd();
+
+        bool notify();
+        bool clear();
+        int getFd();
+
+    private:
+        int _eventfd;
+    };
+}

ixwebsocket/IXHttpClient.cpp

@@ -1,467 +0,0 @@
-/*
- *  IXHttpClient.cpp
- *  Author: Benjamin Sergeant
- *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
- */
-
-#include "IXHttpClient.h"
-#include "IXUrlParser.h"
-#include "IXWebSocketHttpHeaders.h"
-#include "IXSocketFactory.h"
-
-#include <sstream>
-#include <iomanip>
-#include <vector>
-#include <cstring>
-
-#include <zlib.h>
-
-namespace ix
-{
-    const std::string HttpClient::kPost = "POST";
-    const std::string HttpClient::kGet = "GET";
-    const std::string HttpClient::kHead = "HEAD";
-
-    HttpClient::HttpClient()
-    {
-
-    }
-
-    HttpClient::~HttpClient()
-    {
-
-    }
-
-    HttpResponse HttpClient::request(
-        const std::string& url,
-        const std::string& verb,
-        const std::string& body,
-        const HttpRequestArgs& args,
-        int redirects)
-    {
-        uint64_t uploadSize = 0;
-        uint64_t downloadSize = 0;
-        int code = 0;
-        WebSocketHttpHeaders headers;
-        std::string payload;
-
-        std::string protocol, host, path, query;
-        int port;
-        bool websocket = false;
-
-        if (!UrlParser::parse(url, protocol, host, path, query, port, websocket))
-        {
-            std::stringstream ss;
-            ss << "Cannot parse url: " << url;
-            return std::make_tuple(code, HttpErrorCode_UrlMalformed,
-                                   headers, payload, ss.str(),
-                                   uploadSize, downloadSize);
-        }
-
-        bool tls = protocol == "https";
-        std::string errorMsg;
-        _socket = createSocket(tls, errorMsg);
-
-        if (!_socket)
-        {
-            return std::make_tuple(code, HttpErrorCode_CannotCreateSocket,
-                                   headers, payload, errorMsg,
-                                   uploadSize, downloadSize);
-        }
-
-        // Build request string
-        std::stringstream ss;
-        ss << verb << " " << path << " HTTP/1.1\r\n";
-        ss << "Host: " << host << "\r\n";
-        ss << "User-Agent: ixwebsocket/1.0.0" << "\r\n";
-        ss << "Accept: */*" << "\r\n";
-
-        if (args.compress)
-        {
-            ss << "Accept-Encoding: gzip" << "\r\n";
-        }
-
-        // Append extra headers
-        for (auto&& it : args.extraHeaders)
-        {
-            ss << it.first << ": " << it.second << "\r\n";
-        }
-
-        if (verb == kPost)
-        {
-            ss << "Content-Length: " << body.size() << "\r\n";
-
-            // Set default Content-Type if unspecified
-            if (args.extraHeaders.find("Content-Type") == args.extraHeaders.end())
-            {
-                ss << "Content-Type: application/x-www-form-urlencoded" << "\r\n";
-            }
-            ss << "\r\n";
-            ss << body;
-        }
-        else
-        {
-            ss << "\r\n";
-        }
-
-        std::string req(ss.str());
-        std::string errMsg;
-        std::atomic<bool> requestInitCancellation(false);
-
-        // Make a cancellation object dealing with connection timeout
-        auto isCancellationRequested =
-            makeCancellationRequestWithTimeout(args.connectTimeout, requestInitCancellation);
-
-        bool success = _socket->connect(host, port, errMsg, isCancellationRequested);
-        if (!success)
-        {
-            std::stringstream ss;
-            ss << "Cannot connect to url: " << url;
-            return std::make_tuple(code, HttpErrorCode_CannotConnect,
-                                   headers, payload, ss.str(),
-                                   uploadSize, downloadSize);
-        }
-
-        // Make a new cancellation object dealing with transfer timeout
-        isCancellationRequested =
-            makeCancellationRequestWithTimeout(args.transferTimeout, requestInitCancellation);
-
-        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))
-        {
-            std::string errorMsg("Cannot send request");
-            return std::make_tuple(code, HttpErrorCode_SendError,
-                                   headers, payload, errorMsg,
-                                   uploadSize, downloadSize);
-        }
-
-        uploadSize = req.size();
-
-        auto lineResult = _socket->readLine(isCancellationRequested);
-        auto lineValid = lineResult.first;
-        auto line = lineResult.second;
-
-        if (!lineValid)
-        {
-            std::string errorMsg("Cannot retrieve status line");
-            return std::make_tuple(code, HttpErrorCode_CannotReadStatusLine,
-                                   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_tuple(code, HttpErrorCode_MissingStatus,
-                                   headers, payload, errorMsg,
-                                   uploadSize, downloadSize);
-        }
-
-        auto result = parseHttpHeaders(_socket, isCancellationRequested);
-        auto headersValid = result.first;
-        headers = result.second;
-
-        if (!headersValid)
-        {
-            std::string errorMsg("Cannot parse http headers");
-            return std::make_tuple(code, HttpErrorCode_HeaderParsingError,
-                                   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_tuple(code, HttpErrorCode_MissingLocation,
-                                       headers, payload, errorMsg,
-                                       uploadSize, downloadSize);
-            }
-
-            if (redirects >= args.maxRedirects)
-            {
-                std::stringstream ss;
-                ss << "Too many redirects: " << redirects;
-                return std::make_tuple(code, 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_tuple(code, 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;
-
-            payload.reserve(contentLength);
-
-            auto chunkResult = _socket->readBytes(contentLength,
-                                                  args.onProgressCallback,
-                                                  isCancellationRequested);
-            if (!chunkResult.first)
-            {
-                errorMsg = "Cannot read chunk";
-                return std::make_tuple(code, HttpErrorCode_ChunkReadError,
-                                       headers, payload, errorMsg,
-                                       uploadSize, downloadSize);
-            }
-            payload += chunkResult.second;
-        }
-        else if (headers.find("Transfer-Encoding") != headers.end() &&
-                 headers["Transfer-Encoding"] == "chunked")
-        {
-            std::stringstream ss;
-
-            while (true)
-            {
-                lineResult = _socket->readLine(isCancellationRequested);
-                line = lineResult.second;
-
-                if (!lineResult.first)
-                {
-                    return std::make_tuple(code, HttpErrorCode_ChunkReadError,
-                                           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);
-                }
-
-                payload.reserve(payload.size() + chunkSize);
-
-                // Read a chunk
-                auto chunkResult = _socket->readBytes(chunkSize,
-                                                      args.onProgressCallback,
-                                                      isCancellationRequested);
-                if (!chunkResult.first)
-                {
-                    errorMsg = "Cannot read chunk";
-                    return std::make_tuple(code, HttpErrorCode_ChunkReadError,
-                                           headers, payload, errorMsg,
-                                           uploadSize, downloadSize);
-                }
-                payload += chunkResult.second;
-
-                // Read the line that terminates the chunk (\r\n)
-                lineResult = _socket->readLine(isCancellationRequested);
-
-                if (!lineResult.first)
-                {
-                    return std::make_tuple(code, HttpErrorCode_ChunkReadError,
-                                           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_tuple(code, HttpErrorCode_CannotReadBody,
-                                   headers, payload, errorMsg,
-                                   uploadSize, downloadSize);
-        }
-
-        downloadSize = payload.size();
-
-        // If the content was compressed with gzip, decode it
-        if (headers["Content-Encoding"] == "gzip")
-        {
-            std::string decompressedPayload;
-            if (!gzipInflate(payload, decompressedPayload))
-            {
-                std::string errorMsg("Error decompressing payload");
-                return std::make_tuple(code, HttpErrorCode_Gzip,
-                                       headers, payload, errorMsg,
-                                       uploadSize, downloadSize);
-            }
-            payload = decompressedPayload;
-        }
-
-        return std::make_tuple(code, HttpErrorCode_Ok,
-                               headers, payload, std::string(),
-                               uploadSize, downloadSize);
-    }
-
-    HttpResponse HttpClient::get(const std::string& url,
-                                 const HttpRequestArgs& args)
-    {
-        return request(url, kGet, std::string(), args);
-    }
-
-    HttpResponse HttpClient::head(const std::string& url,
-                                  const HttpRequestArgs& args)
-    {
-        return request(url, kHead, std::string(), args);
-    }
-
-    HttpResponse HttpClient::post(const std::string& url,
-                                  const HttpParameters& httpParameters,
-                                  const HttpRequestArgs& args)
-    {
-        return request(url, kPost, serializeHttpParameters(httpParameters), args);
-    }
-
-    HttpResponse HttpClient::post(const std::string& url,
-                                  const std::string& body,
-                                  const HttpRequestArgs& args)
-    {
-        return request(url, kPost, 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();
-    }
-
-    bool HttpClient::gzipInflate(
-        const std::string& in,
-        std::string& out)
-    {
-        z_stream inflateState;
-        std::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::unique_ptr<unsigned char[]> compressBuffer =
-            std::make_unique<unsigned char[]>(kBufferSize);
-
-        do
-        {
-            inflateState.avail_out = (uInt) kBufferSize;
-            inflateState.next_out = compressBuffer.get();
-
-            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.get()),
-                kBufferSize - inflateState.avail_out
-            );
-        } while (inflateState.avail_out == 0);
-
-        inflateEnd(&inflateState);
-        return true;
-    }
-
-    void HttpClient::log(const std::string& msg,
-                         const HttpRequestArgs& args)
-    {
-        if (args.logger)
-        {
-            args.logger(msg);
-        }
-    }
-}

ixwebsocket/IXHttpClient.h

@@ -1,107 +0,0 @@
-/*
- *  IXHttpClient.h
- *  Author: Benjamin Sergeant
- *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
- */
-
-#pragma once
-
-#include <algorithm>
-#include <functional>
-#include <mutex>
-#include <atomic>
-#include <tuple>
-#include <memory>
-#include <map>
-
-#include "IXSocket.h"
-#include "IXWebSocketHttpHeaders.h"
-
-namespace ix
-{
-    enum HttpErrorCode
-    {
-        HttpErrorCode_Ok = 0,
-        HttpErrorCode_CannotConnect = 1,
-        HttpErrorCode_Timeout = 2,
-        HttpErrorCode_Gzip = 3,
-        HttpErrorCode_UrlMalformed = 4,
-        HttpErrorCode_CannotCreateSocket = 5,
-        HttpErrorCode_SendError = 6,
-        HttpErrorCode_ReadError = 7,
-        HttpErrorCode_CannotReadStatusLine = 8,
-        HttpErrorCode_MissingStatus = 9,
-        HttpErrorCode_HeaderParsingError = 10,
-        HttpErrorCode_MissingLocation = 11,
-        HttpErrorCode_TooManyRedirects = 12,
-        HttpErrorCode_ChunkReadError = 13,
-        HttpErrorCode_CannotReadBody = 14
-    };
-
-    using HttpResponse = std::tuple<int, // status
-                                    HttpErrorCode, // error code
-                                    WebSocketHttpHeaders,
-                                    std::string, // payload
-                                    std::string, // error msg
-                                    uint64_t,    // upload size
-                                    uint64_t>;   // download size
-
-    using HttpParameters = std::map<std::string, std::string>;
-    using Logger = std::function<void(const std::string&)>;
-
-    struct HttpRequestArgs
-    {
-        std::string url;
-        WebSocketHttpHeaders extraHeaders;
-        std::string body;
-        int connectTimeout;
-        int transferTimeout;
-        bool followRedirects;
-        int maxRedirects;
-        bool verbose;
-        bool compress;
-        Logger logger;
-        OnProgressCallback onProgressCallback;
-    };
-
-    class HttpClient {
-    public:
-        HttpClient();
-        ~HttpClient();
-
-        HttpResponse get(const std::string& url,
-                         const HttpRequestArgs& args);
-        HttpResponse head(const std::string& url,
-                          const HttpRequestArgs& args);
-
-        HttpResponse post(const std::string& url,
-                          const HttpParameters& httpParameters,
-                          const HttpRequestArgs& args);
-        HttpResponse post(const std::string& url,
-                          const std::string& body,
-                          const HttpRequestArgs& args);
-
-    private:
-        HttpResponse request(const std::string& url,
-                             const std::string& verb,
-                             const std::string& body,
-                             const HttpRequestArgs& args,
-                             int redirects = 0);
-
-        std::string serializeHttpParameters(const HttpParameters& httpParameters);
-
-        std::string urlEncode(const std::string& value);
-
-        void log(const std::string& msg, const HttpRequestArgs& args);
-
-        bool gzipInflate(
-            const std::string& in,
-            std::string& out);
-
-        std::shared_ptr<Socket> _socket;
-
-        const static std::string kPost;
-        const static std::string kGet;
-        const static std::string kHead;
-    };
-}

ixwebsocket/IXProgressCallback.h

@@ -1,14 +0,0 @@
-/*
- *  IXProgressCallback.h
- *  Author: Benjamin Sergeant
- *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
- */
-
-#pragma once
-
-#include <functional>
-
-namespace ix
-{
-    using OnProgressCallback = std::function<bool(int current, int total)>;
-}

ixwebsocket/IXSelectInterrupt.cpp

@@ -1,46 +0,0 @@
-/*
- *  IXSelectInterrupt.cpp
- *  Author: Benjamin Sergeant
- *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
- */
-
-#include "IXSelectInterrupt.h"
-
-namespace ix
-{
-    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;
-    }
-}
-

ixwebsocket/IXSelectInterrupt.h

@@ -1,28 +0,0 @@
-/*
- *  IXSelectInterrupt.h
- *  Author: Benjamin Sergeant
- *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
- */
-
-#pragma once
-
-#include <stdint.h>
-#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;
-    };
-}
-
-

ixwebsocket/IXSelectInterruptEventFd.cpp

@@ -1,116 +0,0 @@
-/*
- *  IXSelectInterruptEventFd.cpp
- *  Author: Benjamin Sergeant
- *  Copyright (c) 2018-2019 Machine Zone, Inc. All rights reserved.
- */
-
-//
-// On Linux we use eventd to wake up select.
-//
-
-//
-// Linux/Android has a special type of virtual files. select(2) will react
-// when reading/writing to those files, unlike closing sockets.
-//
-// https://linux.die.net/man/2/eventfd
-// http://www.sourcexr.com/articles/2013/10/26/lightweight-inter-process-signaling-with-eventfd
-//
-// eventfd was added in Linux kernel 2.x, and our oldest Android (Kitkat 4.4)
-// is on Kernel 3.x
-//
-// cf Android/Kernel table here
-// https://android.stackexchange.com/questions/51651/which-android-runs-which-linux-kernel
-//
-// On macOS we use UNIX pipes to wake up select.
-//
-
-#include "IXSelectInterruptEventFd.h"
-
-#include <sys/eventfd.h>
-
-#include <unistd.h> // for write
-#include <string.h> // for strerror
-#include <fcntl.h>
-#include <errno.h>
-#include <assert.h>
-#include <sstream>
-
-namespace ix
-{
-    SelectInterruptEventFd::SelectInterruptEventFd()
-    {
-        _eventfd = -1;
-    }
-
-    SelectInterruptEventFd::~SelectInterruptEventFd()
-    {
-        ::close(_eventfd);
-    }
-
-    bool SelectInterruptEventFd::init(std::string& errorMsg)
-    {
-        // calling init twice is a programming error
-        assert(_eventfd == -1);
-
-        _eventfd = eventfd(0, 0);
-        if (_eventfd < 0)
-        {
-            std::stringstream ss;
-            ss << "SelectInterruptEventFd::init() failed in eventfd()"
-               << " : " << strerror(errno);
-            errorMsg = ss.str();
-
-            _eventfd = -1;
-            return false;
-        }
-
-        if (fcntl(_eventfd, F_SETFL, O_NONBLOCK) == -1)
-        {
-            std::stringstream ss;
-            ss << "SelectInterruptEventFd::init() failed in fcntl() call"
-               << " : " << strerror(errno);
-            errorMsg = ss.str();
-
-            _eventfd = -1;
-            return false;
-        }
-
-        return true;
-    }
-
-    bool SelectInterruptEventFd::notify(uint64_t value)
-    {
-        int fd = _eventfd;
-
-        if (fd == -1) return false;
-
-        // we should write 8 bytes for an uint64_t
-        return write(fd, &value, sizeof(value)) == 8;
-    }
-
-    // TODO: return max uint64_t for errors ?
-    uint64_t SelectInterruptEventFd::read()
-    {
-        int fd = _eventfd;
-
-        uint64_t value = 0;
-        ::read(fd, &value, sizeof(value));
-        return value;
-    }
-
-    bool SelectInterruptEventFd::clear()
-    {
-        if (_eventfd == -1) return false;
-
-        // 0 is a special value ; select will not wake up
-        uint64_t value = 0;
-
-        // we should write 8 bytes for an uint64_t
-        return write(_eventfd, &value, sizeof(value)) == 8;
-    }
-
-    int SelectInterruptEventFd::getFd() const
-    {
-        return _eventfd;
-    }
-}

ixwebsocket/IXSelectInterruptEventFd.h

@@ -1,32 +0,0 @@
-/*
- *  IXSelectInterruptEventFd.h
- *  Author: Benjamin Sergeant
- *  Copyright (c) 2018-2019 Machine Zone, Inc. All rights reserved.
- */
-
-#pragma once
-
-#include "IXSelectInterrupt.h"
-
-#include <stdint.h>
-#include <string>
-
-namespace ix
-{
-    class SelectInterruptEventFd : public SelectInterrupt {
-    public:
-        SelectInterruptEventFd();
-        virtual ~SelectInterruptEventFd();
-
-        bool init(std::string& errorMsg) final;
-
-        bool notify(uint64_t value) final;
-        bool clear() final;
-        uint64_t read() final;
-        int getFd() const final;
-
-    private:
-        int _eventfd;
-    };
-}
-

ixwebsocket/IXSelectInterruptFactory.cpp

@@ -1,25 +0,0 @@
-/*
- *  IXSelectInterruptFactory.cpp
- *  Author: Benjamin Sergeant
- *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
- */
-
-#include "IXSelectInterruptFactory.h"
-
-#if defined(__linux__) || defined(__APPLE__)
-# include <ixwebsocket/IXSelectInterruptPipe.h>
-#else
-# include <ixwebsocket/IXSelectInterrupt.h>
-#endif
-
-namespace ix
-{
-    std::shared_ptr<SelectInterrupt> createSelectInterrupt()
-    {
-#if defined(__linux__) || defined(__APPLE__)
-        return std::make_shared<SelectInterruptPipe>();
-#else
-        return std::make_shared<SelectInterrupt>();
-#endif
-    }
-}

ixwebsocket/IXSelectInterruptFactory.h

@@ -1,15 +0,0 @@
-/*
- *  IXSelectInterruptFactory.h
- *  Author: Benjamin Sergeant
- *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
- */
-
-#pragma once
-
-#include <memory>
-
-namespace ix
-{
-    class SelectInterrupt;
-    std::shared_ptr<SelectInterrupt> createSelectInterrupt();
-}

ixwebsocket/IXSelectInterruptPipe.cpp

@@ -1,138 +0,0 @@
-/*
- *  IXSelectInterruptPipe.cpp
- *  Author: Benjamin Sergeant
- *  Copyright (c) 2018-2019 Machine Zone, Inc. All rights reserved.
- */
-
-//
-// On macOS we use UNIX pipes to wake up select.
-//
-
-#include "IXSelectInterruptPipe.h"
-
-#include <unistd.h> // for write
-#include <string.h> // for strerror
-#include <fcntl.h>
-#include <errno.h>
-#include <assert.h>
-#include <sstream>
-
-namespace ix
-{
-    // File descriptor at index 0 in _fildes is the read end of the pipe
-    // File descriptor at index 1 in _fildes is the write end of the pipe
-    const int SelectInterruptPipe::kPipeReadIndex = 0;
-    const int SelectInterruptPipe::kPipeWriteIndex = 1;
-
-    SelectInterruptPipe::SelectInterruptPipe()
-    {
-        _fildes[kPipeReadIndex] = -1;
-        _fildes[kPipeWriteIndex] = -1;
-    }
-
-    SelectInterruptPipe::~SelectInterruptPipe()
-    {
-        ::close(_fildes[kPipeReadIndex]);
-        ::close(_fildes[kPipeWriteIndex]);
-        _fildes[kPipeReadIndex] = -1;
-        _fildes[kPipeWriteIndex] = -1;
-    }
-
-    bool SelectInterruptPipe::init(std::string& errorMsg)
-    {
-        // calling init twice is a programming error
-        assert(_fildes[kPipeReadIndex] == -1);
-        assert(_fildes[kPipeWriteIndex] == -1);
-
-        if (pipe(_fildes) < 0)
-        {
-            std::stringstream ss;
-            ss << "SelectInterruptPipe::init() failed in pipe() call"
-               << " : " << strerror(errno);
-            errorMsg = ss.str();
-            return false;
-        }
-
-        if (fcntl(_fildes[kPipeReadIndex], F_SETFL, O_NONBLOCK) == -1)
-        {
-            std::stringstream ss;
-            ss << "SelectInterruptPipe::init() failed in fcntl(..., O_NONBLOCK) call"
-               << " : " << strerror(errno);
-            errorMsg = ss.str();
-
-            _fildes[kPipeReadIndex] = -1;
-            _fildes[kPipeWriteIndex] = -1;
-            return false;
-        }
-
-        if (fcntl(_fildes[kPipeWriteIndex], F_SETFL, O_NONBLOCK) == -1)
-        {
-            std::stringstream ss;
-            ss << "SelectInterruptPipe::init() failed in fcntl(..., O_NONBLOCK) call"
-               << " : " << strerror(errno);
-            errorMsg = ss.str();
-
-            _fildes[kPipeReadIndex] = -1;
-            _fildes[kPipeWriteIndex] = -1;
-            return false;
-        }
-
-#ifdef F_SETNOSIGPIPE
-        if (fcntl(_fildes[kPipeWriteIndex], F_SETNOSIGPIPE, 1) == -1)
-        {
-            std::stringstream ss;
-            ss << "SelectInterruptPipe::init() failed in fcntl(.... F_SETNOSIGPIPE) call"
-               << " : " << strerror(errno);
-            errorMsg = ss.str();
-
-            _fildes[kPipeReadIndex] = -1;
-            _fildes[kPipeWriteIndex] = -1;
-            return false;
-        }
-
-        if (fcntl(_fildes[kPipeWriteIndex], F_SETNOSIGPIPE, 1) == -1)
-        {
-            std::stringstream ss;
-            ss << "SelectInterruptPipe::init() failed in fcntl(..., F_SETNOSIGPIPE) call"
-               << " : " << strerror(errno);
-            errorMsg = ss.str();
-
-            _fildes[kPipeReadIndex] = -1;
-            _fildes[kPipeWriteIndex] = -1;
-            return false;
-        }
-#endif
-
-        return true;
-    }
-
-    bool SelectInterruptPipe::notify(uint64_t value)
-    {
-        int fd = _fildes[kPipeWriteIndex];
-        if (fd == -1) return false;
-
-        // we should write 8 bytes for an uint64_t
-        return write(fd, &value, sizeof(value)) == 8;
-    }
-
-    // TODO: return max uint64_t for errors ?
-    uint64_t SelectInterruptPipe::read()
-    {
-        int fd = _fildes[kPipeReadIndex];
-
-        uint64_t value = 0;
-        ::read(fd, &value, sizeof(value));
-
-        return value;
-    }
-
-    bool SelectInterruptPipe::clear()
-    {
-        return true;
-    }
-
-    int SelectInterruptPipe::getFd() const
-    {
-        return _fildes[kPipeReadIndex];
-    }
-}

ixwebsocket/IXSelectInterruptPipe.h

@@ -1,39 +0,0 @@
-/*
- *  IXSelectInterruptPipe.h
- *  Author: Benjamin Sergeant
- *  Copyright (c) 2018-2019 Machine Zone, Inc. All rights reserved.
- */
-
-#pragma once
-
-#include "IXSelectInterrupt.h"
-
-#include <stdint.h>
-#include <string>
-
-namespace ix
-{
-    class SelectInterruptPipe : public SelectInterrupt {
-    public:
-        SelectInterruptPipe();
-        virtual ~SelectInterruptPipe();
-
-        bool init(std::string& errorMsg) final;
-
-        bool notify(uint64_t value) final;
-        bool clear() final;
-        uint64_t read() final;
-        int getFd() const final;
-
-    private:
-        // Store file descriptors used by the communication pipe. Communication
-        // happens between a control thread and a background thread, which is
-        // blocked on select.
-        int _fildes[2];
-
-        // Used to identify the read/write idx
-        static const int kPipeReadIndex;
-        static const int kPipeWriteIndex;
-    };
-}
-

ixwebsocket/IXSocket.cpp

@@ -7,8 +7,6 @@
 #include "IXSocket.h"
 #include "IXSocketConnect.h"
 #include "IXNetSystem.h"
-#include "IXSelectInterrupt.h"
-#include "IXSelectInterruptFactory.h"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -17,27 +15,20 @@
 #include <stdint.h>
 #include <fcntl.h>
 #include <sys/types.h>
+#include <poll.h>
 
 #include <algorithm>
 #include <iostream>
 
-#ifdef min
-#undef min
-#endif
-
-namespace ix
+namespace ix 
 {
     const int Socket::kDefaultPollNoTimeout = -1; // No poll timeout by default
     const int Socket::kDefaultPollTimeout = kDefaultPollNoTimeout;
-    const uint64_t Socket::kSendRequest = 1;
-    const uint64_t Socket::kCloseRequest = 2;
-    constexpr size_t Socket::kChunkSize;
 
-    Socket::Socket(int fd) :
-        _sockfd(fd),
-        _selectInterrupt(createSelectInterrupt())
+    Socket::Socket(int fd) : 
+        _sockfd(fd)
     {
-        ;
+
     }
 
     Socket::~Socket()
@@ -49,93 +40,44 @@ namespace ix
     {
         if (_sockfd == -1)
         {
-            if (onPollCallback) onPollCallback(PollResultType::Error);
+            onPollCallback(PollResultType_Error);
             return;
         }
 
-        PollResultType pollResult = isReadyToRead(1000 * timeoutSecs);
+#ifdef __linux__
+        constexpr int nfds = 2;
+#else
+        constexpr int nfds = 1;
+#endif
 
-        if (onPollCallback) onPollCallback(pollResult);
-    }
+        struct pollfd fds[nfds];
+        fds[0].fd = _sockfd;
+        fds[0].events = POLLIN;
 
-    PollResultType Socket::select(bool readyToRead, int timeoutMs)
-    {
-        fd_set rfds;
-        fd_set wfds;
-        FD_ZERO(&rfds);
-        FD_ZERO(&wfds);
+#ifdef __linux__
+        fds[1].fd = _eventfd.getFd();
+        fds[1].events = POLLIN;
+#endif
+        int ret = ::poll(fds, nfds, timeoutSecs * 1000);
 
-        fd_set* fds = (readyToRead) ? &rfds : & wfds;
-        FD_SET(_sockfd, fds);
-
-        // File descriptor used to interrupt select when needed
-        int interruptFd = _selectInterrupt->getFd();
-        if (interruptFd != -1)
-        {
-            FD_SET(interruptFd, fds);
-        }
-
-        struct timeval timeout;
-        timeout.tv_sec = timeoutMs / 1000;
-        timeout.tv_usec = (timeoutMs < 1000) ? 0 : 1000 * (timeoutMs % 1000);
-
-        // Compute the highest fd.
-        int sockfd = _sockfd;
-        int nfds = (std::max)(sockfd, interruptFd);
-
-        int ret = ::select(nfds + 1, &rfds, &wfds, nullptr,
-                           (timeoutMs < 0) ? nullptr : &timeout);
-
-        PollResultType pollResult = PollResultType::ReadyForRead;
+        PollResultType pollResult = PollResultType_ReadyForRead;
         if (ret < 0)
         {
-            pollResult = PollResultType::Error;
+            pollResult = PollResultType_Error;
         }
         else if (ret == 0)
         {
-            pollResult = PollResultType::Timeout;
-        }
-        else if (interruptFd != -1 && FD_ISSET(interruptFd, &rfds))
-        {
-            uint64_t value = _selectInterrupt->read();
-
-            if (value == kSendRequest)
-            {
-                pollResult = PollResultType::SendRequest;
-            }
-            else if (value == kCloseRequest)
-            {
-                pollResult = PollResultType::CloseRequest;
-            }
-        }
-        else if (sockfd != -1 && readyToRead && FD_ISSET(sockfd, &rfds))
-        {
-            pollResult = PollResultType::ReadyForRead;
-        }
-        else if (sockfd != -1 && !readyToRead && FD_ISSET(sockfd, &wfds))
-        {
-            pollResult = PollResultType::ReadyForWrite;
+            pollResult = PollResultType_Timeout;
         }
 
-        return pollResult;
+        onPollCallback(pollResult);
+
     }
 
-    PollResultType Socket::isReadyToRead(int timeoutMs)
+    void Socket::wakeUpFromPoll()
     {
-        bool readyToRead = true;
-        return select(readyToRead, timeoutMs);
-    }
-
-    PollResultType Socket::isReadyToWrite(int timeoutMs)
-    {
-        bool readyToRead = false;
-        return select(readyToRead, timeoutMs);
-    }
-
-    // Wake up from poll/select by writing to the pipe which is watched by select
-    bool Socket::wakeUpFromPoll(uint8_t wakeUpCode)
-    {
-        return _selectInterrupt->notify(wakeUpCode);
+        // this will wake up the thread blocked on select, only needed on Linux
+        _eventfd.notify();
     }
 
     bool Socket::connect(const std::string& host,
@@ -145,7 +87,7 @@ namespace ix
     {
         std::lock_guard<std::mutex> lock(_socketMutex);
 
-        if (!_selectInterrupt->clear()) return false;
+        if (!_eventfd.clear()) return false;
 
         _sockfd = SocketConnect::connect(host, port, errMsg, isCancellationRequested);
         return _sockfd != -1;
@@ -204,40 +146,24 @@ namespace ix
 #endif
     }
 
-    bool Socket::init(std::string& errorMsg)
+    bool Socket::init()
     {
-        return _selectInterrupt->init(errorMsg);
+#ifdef _WIN32
+        INT rc;
+        WSADATA wsaData;
+        
+        rc = WSAStartup(MAKEWORD(2, 2), &wsaData);
+        return rc != 0;
+#else
+        return true;
+#endif
     }
 
-    bool Socket::writeBytes(const std::string& str,
-                            const CancellationRequest& isCancellationRequested)
+    void Socket::cleanup()
     {
-        while (true)
-        {
-            if (isCancellationRequested && isCancellationRequested()) return false;
-
-            char* buffer = const_cast<char*>(str.c_str());
-            int len = (int) str.size();
-
-            ssize_t ret = send(buffer, len);
-
-            // We wrote some bytes, as needed, all good.
-            if (ret > 0)
-            {
-                return ret == len;
-            }
-            // There is possibly something to be writen, try again
-            else if (ret < 0 && (getErrno() == EWOULDBLOCK ||
-                                 getErrno() == EAGAIN))
-            {
-                continue;
-            }
-            // There was an error during the write, abort
-            else
-            {
-                return false;
-            }
-        }
+#ifdef _WIN32
+        WSACleanup();
+#endif
     }
 
     bool Socket::readByte(void* buffer,
@@ -245,7 +171,7 @@ namespace ix
     {
         while (true)
         {
-            if (isCancellationRequested && isCancellationRequested()) return false;
+            if (isCancellationRequested()) return false;
 
             ssize_t ret;
             ret = recv(buffer, 1);
@@ -259,12 +185,23 @@ namespace ix
             else if (ret < 0 && (getErrno() == EWOULDBLOCK ||
                                  getErrno() == EAGAIN))
             {
-                // Wait with a 1ms timeout until the socket is ready to read.
+                // Wait with a timeout until something is written.
                 // This way we are not busy looping
-                if (isReadyToRead(1) == PollResultType::Error)
+                fd_set rfds;
+                struct timeval timeout;
+                timeout.tv_sec = 0;
+                timeout.tv_usec = 1 * 1000; // 1ms timeout
+
+                FD_ZERO(&rfds);
+                FD_SET(_sockfd, &rfds);
+
+                if (select(_sockfd + 1, &rfds, nullptr, nullptr, &timeout) < 0 &&
+                    (errno == EBADF || errno == EINVAL))
                 {
                     return false;
                 }
+
+                continue;
             }
             // There was an error during the read, abort
             else
@@ -274,8 +211,38 @@ namespace ix
         }
     }
 
-    std::pair<bool, std::string> Socket::readLine(
-        const CancellationRequest& isCancellationRequested)
+    bool Socket::writeBytes(const std::string& str,
+                            const CancellationRequest& isCancellationRequested)
+    {
+        while (true)
+        {
+            if (isCancellationRequested()) return false;
+
+            char* buffer = const_cast<char*>(str.c_str());
+            int len = (int) str.size();
+
+            ssize_t ret = send(buffer, len);
+
+            // We wrote some bytes, as needed, all good.
+            if (ret > 0)
+            {
+                return ret == len;
+            }
+            // There is possibly something to be write, try again
+            else if (ret < 0 && (getErrno() == EWOULDBLOCK ||
+                                 getErrno() == EAGAIN))
+            {
+                continue;
+            }
+            // There was an error during the write, abort
+            else
+            {
+                return false;
+            }
+        }
+    }
+
+    std::pair<bool, std::string> Socket::readLine(const CancellationRequest& isCancellationRequested)
     {
         char c;
         std::string line;
@@ -285,8 +252,7 @@ namespace ix
         {
             if (!readByte(&c, isCancellationRequested))
             {
-                // Return what we were able to read
-                return std::make_pair(false, line);
+                return std::make_pair(false, std::string());
             }
 
             line += c;
@@ -294,52 +260,4 @@ namespace ix
 
         return std::make_pair(true, line);
     }
-
-    std::pair<bool, std::string> Socket::readBytes(
-        size_t length,
-        const OnProgressCallback& onProgressCallback,
-        const CancellationRequest& isCancellationRequested)
-    {
-        if (_readBuffer.empty())
-        {
-            _readBuffer.resize(kChunkSize);
-        }
-
-        std::vector<uint8_t> output;
-        while (output.size() != length)
-        {
-            if (isCancellationRequested && isCancellationRequested())
-            {
-                return std::make_pair(false, std::string());
-            }
-
-            size_t size = std::min(kChunkSize, length - output.size());
-            ssize_t ret = recv((char*)&_readBuffer[0], size);
-
-            if (ret <= 0 && (getErrno() != EWOULDBLOCK &&
-                             getErrno() != EAGAIN))
-            {
-                // Error
-                return std::make_pair(false, std::string());
-            }
-            else if (ret > 0)
-            {
-                output.insert(output.end(),
-                              _readBuffer.begin(),
-                              _readBuffer.begin() + ret);
-            }
-
-            if (onProgressCallback) onProgressCallback((int) output.size(), (int) length);
-
-            // Wait with a 1ms timeout until the socket is ready to read.
-            // This way we are not busy looping
-            if (isReadyToRead(1) == PollResultType::Error)
-            {
-                return std::make_pair(false, std::string());
-            }
-        }
-
-        return std::make_pair(true, std::string(output.begin(),
-                                                output.end()));
-    }
 }

ixwebsocket/IXSocket.h

@@ -10,29 +10,22 @@
 #include <functional>
 #include <mutex>
 #include <atomic>
-#include <vector>
-#include <memory>
 
 #ifdef _WIN32
 #include <BaseTsd.h>
 typedef SSIZE_T ssize_t;
 #endif
 
+#include "IXEventFd.h"
 #include "IXCancellationRequest.h"
-#include "IXProgressCallback.h"
 
-namespace ix
+namespace ix 
 {
-    class SelectInterrupt;
-
-    enum class PollResultType
+    enum PollResultType
     {
-        ReadyForRead = 0,
-        ReadyForWrite = 1,
-        Timeout = 2,
-        Error = 3,
-        SendRequest = 4,
-        CloseRequest = 5
+        PollResultType_ReadyForRead = 0,
+        PollResultType_Timeout = 1,
+        PollResultType_Error = 2
     };
 
     class Socket {
@@ -41,20 +34,15 @@ namespace ix
 
         Socket(int fd = -1);
         virtual ~Socket();
-        bool init(std::string& errorMsg);
 
         void configure();
 
-        // Functions to check whether there is activity on the socket
-        void poll(const OnPollCallback& onPollCallback,
-                  int timeoutSecs = kDefaultPollTimeout);
-        bool wakeUpFromPoll(uint8_t wakeUpCode);
-
-        PollResultType isReadyToWrite(int timeoutMs);
-        PollResultType isReadyToRead(int timeoutMs);
+        virtual void poll(const OnPollCallback& onPollCallback,
+                          int timeoutSecs = kDefaultPollTimeout);
+        virtual void wakeUpFromPoll();
 
         // Virtual methods
-        virtual bool connect(const std::string& url,
+        virtual bool connect(const std::string& url, 
                              int port,
                              std::string& errMsg,
                              const CancellationRequest& isCancellationRequested);
@@ -70,36 +58,21 @@ namespace ix
                       const CancellationRequest& isCancellationRequested);
         bool writeBytes(const std::string& str,
                         const CancellationRequest& isCancellationRequested);
-
-        std::pair<bool, std::string> readLine(
-            const CancellationRequest& isCancellationRequested);
-        std::pair<bool, std::string> readBytes(
-            size_t length,
-            const OnProgressCallback& onProgressCallback,
-            const CancellationRequest& isCancellationRequested);
+        std::pair<bool, std::string> readLine(const CancellationRequest& isCancellationRequested);
 
         static int getErrno();
-
-        // Used as special codes for pipe communication
-        static const uint64_t kSendRequest;
-        static const uint64_t kCloseRequest;
+        static bool init(); // Required on Windows to initialize WinSocket
+        static void cleanup(); // Required on Windows to cleanup WinSocket
 
     protected:
         void closeSocket(int fd);
 
         std::atomic<int> _sockfd;
         std::mutex _socketMutex;
+        EventFd _eventfd;
 
     private:
-        PollResultType select(bool readyToRead, int timeoutMs);
-
         static const int kDefaultPollTimeout;
         static const int kDefaultPollNoTimeout;
-
-        // Buffer for reading from our socket. That buffer is never resized.
-        std::vector<uint8_t> _readBuffer;
-        static constexpr size_t kChunkSize = 1 << 15;
-
-        std::shared_ptr<SelectInterrupt> _selectInterrupt;
     };
 }

ixwebsocket/IXSocketAppleSSL.cpp

@@ -50,7 +50,7 @@ OSStatus read_from_socket(SSLConnectionRef connection, void *data, size_t *len)
         else
             return noErr;
     }
-    else if (0 == status)
+    else if (0 == status) 
     {
         *len = 0;
         return errSSLClosedGraceful;
@@ -102,7 +102,7 @@ OSStatus write_to_socket(SSLConnectionRef connection, const void *data, size_t *
     else
     {
         *len = 0;
-        if (EAGAIN == errno)
+        if (EAGAIN == errno) 
         {
             return errSSLWouldBlock;
         }
@@ -141,7 +141,7 @@ std::string getSSLErrorDescription(OSStatus status)
 
 } // anonymous namespace
 
-namespace ix
+namespace ix 
 {
     SocketAppleSSL::SocketAppleSSL(int fd) : Socket(fd),
         _sslContext(nullptr)
@@ -176,11 +176,11 @@ namespace ix
 
             do {
                 status = SSLHandshake(_sslContext);
-            } while (errSSLWouldBlock == status ||
+            } while (errSSLWouldBlock == status || 
                      errSSLServerAuthCompleted == status);
         }
 
-        if (noErr != status)
+        if (noErr != status) 
         {
             errMsg = getSSLErrorDescription(status);
             close();
@@ -230,7 +230,7 @@ namespace ix
     ssize_t SocketAppleSSL::recv(void* buf, size_t nbyte)
     {
         OSStatus status = errSSLWouldBlock;
-        while (errSSLWouldBlock == status)
+        while (errSSLWouldBlock == status) 
         {
             size_t processed = 0;
             std::lock_guard<std::mutex> lock(_mutex);
@@ -239,7 +239,7 @@ namespace ix
             if (processed > 0)
                 return (ssize_t) processed;
 
-            // The connection was reset, inform the caller that this
+            // The connection was reset, inform the caller that this 
             // Socket should close
             if (status == errSSLClosedGraceful ||
                 status == errSSLClosedNoNotify ||

ixwebsocket/IXSocketAppleSSL.h

@@ -14,15 +14,15 @@
 
 #include <mutex>
 
-namespace ix
+namespace ix 
 {
-    class SocketAppleSSL : public Socket
+    class SocketAppleSSL : public Socket 
     {
     public:
         SocketAppleSSL(int fd = -1);
         ~SocketAppleSSL();
 
-        virtual bool connect(const std::string& host,
+        virtual bool connect(const std::string& host, 
                              int port,
                              std::string& errMsg,
                              const CancellationRequest& isCancellationRequested) final;

ixwebsocket/IXSocketConnect.cpp

@@ -30,7 +30,7 @@ namespace
     }
 }
 
-namespace ix
+namespace ix 
 {
     //
     // This function can be cancelled every 50 ms
@@ -42,7 +42,7 @@ namespace ix
                                         const CancellationRequest& isCancellationRequested)
     {
         errMsg = "no error";
-
+        
         int fd = socket(address->ai_family,
                         address->ai_socktype,
                         address->ai_protocol);
@@ -66,13 +66,13 @@ namespace ix
 
         for (;;)
         {
-            if (isCancellationRequested && isCancellationRequested()) // Must handle timeout as well
+            if (isCancellationRequested()) // Must handle timeout as well
             {
                 closeSocket(fd);
                 errMsg = "Cancelled";
                 return -1;
             }
-
+            
             // Use select to check the status of the new connection
             struct timeval timeout;
             timeout.tv_sec = 0;
@@ -179,7 +179,7 @@ namespace ix
         // 3. (apple) prevent SIGPIPE from being emitted when the remote end disconnect
 #ifdef SO_NOSIGPIPE
         int value = 1;
-        setsockopt(sockfd, SOL_SOCKET, SO_NOSIGPIPE,
+        setsockopt(sockfd, SOL_SOCKET, SO_NOSIGPIPE, 
                    (void *)&value, sizeof(value));
 #endif
     }

ixwebsocket/IXSocketConnect.h

@@ -12,7 +12,7 @@
 
 struct addrinfo;
 
-namespace ix
+namespace ix 
 {
     class SocketConnect {
     public:

ixwebsocket/IXSocketFactory.cpp

@@ -1,74 +0,0 @@
-/*
- *  IXSocketFactory.cpp
- *  Author: Benjamin Sergeant
- *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
- */
-
-#include "IXSocketFactory.h"
-
-#ifdef IXWEBSOCKET_USE_TLS
-
-# ifdef __APPLE__
-#  include <ixwebsocket/IXSocketAppleSSL.h>
-# elif defined(_WIN32)
-#  include <ixwebsocket/IXSocketSChannel.h>
-# else
-#  include <ixwebsocket/IXSocketOpenSSL.h>
-# endif
-
-#else
-
-#include <ixwebsocket/IXSocket.h>
-
-#endif
-
-namespace ix
-{
-    std::shared_ptr<Socket> createSocket(bool tls,
-                                         std::string& errorMsg)
-    {
-        errorMsg.clear();
-        std::shared_ptr<Socket> socket;
-
-        if (!tls)
-        {
-            socket = std::make_shared<Socket>();
-        }
-        else
-        {
-#ifdef IXWEBSOCKET_USE_TLS
-# ifdef __APPLE__
-            socket = std::make_shared<SocketAppleSSL>();
-# elif defined(_WIN32)
-            socket = std::make_shared<SocketSChannel>();
-# else
-            socket = std::make_shared<SocketOpenSSL>();
-# endif
-#else
-            errorMsg = "TLS support is not enabled on this platform.";
-            return nullptr;
-#endif
-        }
-
-        if (!socket->init(errorMsg))
-        {
-            socket.reset();
-        }
-
-        return socket;
-    }
-
-    std::shared_ptr<Socket> createSocket(int fd,
-                                         std::string& errorMsg)
-    {
-        errorMsg.clear();
-
-        std::shared_ptr<Socket> socket = std::make_shared<Socket>(fd);
-        if (!socket->init(errorMsg))
-        {
-            socket.reset();
-        }
-
-        return socket;
-    }
-}

ixwebsocket/IXSocketFactory.h

@@ -1,21 +0,0 @@
-
-/*
- *  IXSocketFactory.h
- *  Author: Benjamin Sergeant
- *  Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
- */
-
-#pragma once
-
-#include <memory>
-#include <string>
-
-namespace ix
-{
-    class Socket;
-    std::shared_ptr<Socket> createSocket(bool tls,
-                                         std::string& errorMsg);
-
-    std::shared_ptr<Socket> createSocket(int fd,
-                                         std::string& errorMsg);
-}

ixwebsocket/IXSocketOpenSSL.cpp

@@ -18,13 +18,12 @@
 #include <errno.h>
 #define socketerrno errno
 
-namespace ix
+namespace ix 
 {
     std::atomic<bool> SocketOpenSSL::_openSSLInitializationSuccessful(false);
-    std::once_flag SocketOpenSSL::_openSSLInitFlag;
 
     SocketOpenSSL::SocketOpenSSL(int fd) : Socket(fd),
-        _ssl_connection(nullptr),
+        _ssl_connection(nullptr), 
         _ssl_context(nullptr)
     {
         std::call_once(_openSSLInitFlag, &SocketOpenSSL::openSSLInitialize, this);
@@ -81,7 +80,7 @@ namespace ix
                 return "OpenSSL failed - underlying BIO reported an I/O error";
             }
         }
-        else if (err == SSL_ERROR_SSL)
+        else if (err == SSL_ERROR_SSL) 
         {
             e = ERR_get_error();
             std::string errMsg("OpenSSL failed - ");
@@ -150,7 +149,7 @@ namespace ix
 #if OPENSSL_VERSION_NUMBER < 0x10100000L
         // Check server name
         bool hostname_verifies_ok = false;
-        STACK_OF(GENERAL_NAME) *san_names =
+        STACK_OF(GENERAL_NAME) *san_names = 
             (STACK_OF(GENERAL_NAME)*) X509_get_ext_d2i((X509 *)server_cert,
                                                        NID_subject_alt_name, NULL, NULL);
         if (san_names)
@@ -161,8 +160,8 @@ namespace ix
                 if (sk_name->type == GEN_DNS)
                 {
                     char *name = (char *)ASN1_STRING_data(sk_name->d.dNSName);
-                    if ((size_t)ASN1_STRING_length(sk_name->d.dNSName) == strlen(name) &&
-                        checkHost(hostname, name))
+                    if ((size_t)ASN1_STRING_length(sk_name->d.dNSName) == strlen(name) && 
+                        checkHost(hostname, name)) 
                     {
                         hostname_verifies_ok = true;
                         break;
@@ -186,8 +185,8 @@ namespace ix
                     ASN1_STRING *cn_asn1 = X509_NAME_ENTRY_get_data(cn_entry);
                     char *cn = (char *)ASN1_STRING_data(cn_asn1);
 
-                    if ((size_t)ASN1_STRING_length(cn_asn1) == strlen(cn) &&
-                       checkHost(hostname, cn))
+                    if ((size_t)ASN1_STRING_length(cn_asn1) == strlen(cn) && 
+                       checkHost(hostname, cn)) 
                     {
                         hostname_verifies_ok = true;
                     }
@@ -206,7 +205,7 @@ namespace ix
         return true;
     }
 
-    bool SocketOpenSSL::openSSLHandshake(const std::string& host, std::string& errMsg)
+    bool SocketOpenSSL::openSSLHandshake(const std::string& host, std::string& errMsg) 
     {
         while (true)
         {

ixwebsocket/IXSocketOpenSSL.h

@@ -17,15 +17,15 @@
 
 #include <mutex>
 
-namespace ix
+namespace ix 
 {
-    class SocketOpenSSL : public Socket
+    class SocketOpenSSL : public Socket 
     {
     public:
         SocketOpenSSL(int fd = -1);
         ~SocketOpenSSL();
 
-        virtual bool connect(const std::string& host,
+        virtual bool connect(const std::string& host, 
                              int port,
                              std::string& errMsg,
                              const CancellationRequest& isCancellationRequested) final;
@@ -50,7 +50,7 @@ namespace ix
         const SSL_METHOD* _ssl_method;
         mutable std::mutex _mutex;  // OpenSSL routines are not thread-safe
 
-        static std::once_flag _openSSLInitFlag;
+        std::once_flag _openSSLInitFlag;
         static std::atomic<bool> _openSSLInitializationSuccessful;
     };
 

ixwebsocket/IXSocketSChannel.cpp

@@ -18,7 +18,7 @@
 # include <ws2def.h>
 # include <WS2tcpip.h>
 # include <schannel.h>
-//# include <sslsock.h>
+# include <sslsock.h>
 # include <io.h>
 
 #define WIN32_LEAN_AND_MEAN
@@ -47,7 +47,7 @@
 // link with ntdsapi.lib for DsMakeSpn function
 #pragma comment(lib, "ntdsapi.lib")
 
-// The following function assumes that Winsock
+// The following function assumes that Winsock 
 // has already been initialized
 
 
@@ -59,7 +59,7 @@
 # error("This file should only be built on Windows")
 #endif
 
-namespace ix
+namespace ix 
 {
     SocketSChannel::SocketSChannel()
     {
@@ -68,17 +68,17 @@ namespace ix
 
     SocketSChannel::~SocketSChannel()
     {
-
+        
     }
 
     bool SocketSChannel::connect(const std::string& host,
                                  int port,
                                  std::string& errMsg)
     {
-        return Socket::connect(host, port, errMsg, nullptr);
+        return Socket::connect(host, port, errMsg);
     }
 
-
+    
     void SocketSChannel::secureSocket()
     {
         // there will be a lot to do here ...
@@ -89,17 +89,17 @@ namespace ix
         Socket::close();
     }
 
-    ssize_t SocketSChannel::send(char* buf, size_t nbyte)
+    int SocketSChannel::send(char* buf, size_t nbyte)
     {
         return Socket::send(buf, nbyte);
     }
 
-    ssize_t SocketSChannel::send(const std::string& buffer)
+    int SocketSChannel::send(const std::string& buffer)
     {
         return Socket::send(buffer);
     }
 
-    ssize_t SocketSChannel::recv(void* buf, size_t nbyte)
+    int SocketSChannel::recv(void* buf, size_t nbyte)
     {
         return Socket::recv(buf, nbyte);
     }

ixwebsocket/IXSocketSChannel.h

@@ -8,15 +8,15 @@
 
 #include "IXSocket.h"
 
-namespace ix
+namespace ix 
 {
-    class SocketSChannel : public Socket
+    class SocketSChannel : public Socket 
     {
     public:
         SocketSChannel();
         ~SocketSChannel();
 
-        virtual bool connect(const std::string& host,
+        virtual bool connect(const std::string& host, 
                              int port,
                              std::string& errMsg) final;
         virtual void close() final;
@@ -24,9 +24,9 @@ namespace ix
         // The important override
         virtual void secureSocket() final;
 
-        virtual ssize_t send(char* buffer, size_t length) final;
-        virtual ssize_t send(const std::string& buffer) final;
-        virtual ssize_t recv(void* buffer, size_t length) final;
+        virtual int send(char* buffer, size_t length) final;
+        virtual int send(const std::string& buffer) final;
+        virtual int recv(void* buffer, size_t length) final;
 
     private:
     };

ixwebsocket/IXSocketServer.cpp

@@ -14,7 +14,7 @@
 #include <future>
 #include <string.h>
 
-namespace ix
+namespace ix 
 {
     const int SocketServer::kDefaultPort(8080);
     const std::string SocketServer::kDefaultHost("127.0.0.1");
@@ -29,8 +29,7 @@ namespace ix
         _host(host),
         _backlog(backlog),
         _maxConnections(maxConnections),
-        _stop(false),
-        _connectionStateFactory(&ConnectionState::createConnectionState)
+        _stop(false)
     {
 
     }
@@ -84,7 +83,7 @@ namespace ix
         server.sin_family = AF_INET;
         server.sin_port   = htons(_port);
 
-        // Using INADDR_ANY trigger a pop-up box as binding to any address is detected
+        // Using INADDR_ANY trigger a pop-up box as binding to any address is detected 
         // by the osx firewall. We need to codesign the binary with a self-signed cert
         // to allow that, but this is a bit of a pain. (this is what node or python would do).
         //
@@ -136,9 +135,6 @@ namespace ix
 
     void SocketServer::stop()
     {
-        closeTerminatedThreads();
-        assert(_connectionsThreads.empty());
-
         if (!_thread.joinable()) return; // nothing to do
 
         _stop = true;
@@ -149,50 +145,18 @@ namespace ix
         ::close(_serverFd);
     }
 
-    void SocketServer::setConnectionStateFactory(
-        const ConnectionStateFactory& connectionStateFactory)
-    {
-        _connectionStateFactory = connectionStateFactory;
-    }
-
-    // join the threads for connections that have been closed
-    void SocketServer::closeTerminatedThreads()
-    {
-        auto it = _connectionsThreads.begin();
-        auto itEnd  = _connectionsThreads.end();
-
-        while (it != itEnd)
-        {
-            auto& connectionState = it->first;
-            auto& thread = it->second;
-
-            if (!connectionState->isTerminated() ||
-                !thread.joinable())
-            {
-                ++it;
-                continue;
-            }
-
-            thread.join();
-            it = _connectionsThreads.erase(it);
-        }
-    }
-
     void SocketServer::run()
     {
         // Set the socket to non blocking mode, so that accept calls are not blocking
         SocketConnect::configure(_serverFd);
 
+        // Return value of std::async, ignored
+        std::future<void> f;
+
         for (;;)
         {
             if (_stop) return;
 
-            // Garbage collection to shutdown/join threads for closed connections.
-            // We could run this in its own thread, so that we dont need to accept 
-            // a new connection to close a thread.
-            // We could also use a condition variable to be notify when we need to do this
-            closeTerminatedThreads();
-
             // Use select to check whether a new connection is in progress
             fd_set rfds;
             struct timeval timeout;
@@ -250,19 +214,14 @@ namespace ix
                 continue;
             }
 
-            std::shared_ptr<ConnectionState> connectionState;
-            if (_connectionStateFactory)
-            {
-                connectionState = _connectionStateFactory();
-            }
-
             // Launch the handleConnection work asynchronously in its own thread.
-            _connectionsThreads.push_back(std::make_pair(
-                    connectionState,
-                    std::thread(&SocketServer::handleConnection,
-                                this,
-                                clientFd,
-                                connectionState)));
+            //
+            // the destructor of a future returned by std::async blocks, 
+            // so we need to declare it outside of this loop
+            f = std::async(std::launch::async,
+                           &SocketServer::handleConnection,
+                           this,
+                           clientFd);
         }
     }
 }

ixwebsocket/IXSocketServer.h

@@ -6,29 +6,20 @@
 
 #pragma once
 
-#include "IXConnectionState.h"
-
 #include <utility> // pair
 #include <string>
 #include <set>
 #include <thread>
-#include <list>
 #include <mutex>
 #include <functional>
 #include <memory>
 #include <atomic>
 #include <condition_variable>
 
-namespace ix
+namespace ix 
 {
     class SocketServer {
     public:
-        using ConnectionStateFactory = std::function<std::shared_ptr<ConnectionState>()>;
-
-        // We use a list as we only care about remove and append operations.
-        using ConnectionThreads = std::list<std::pair<std::shared_ptr<ConnectionState>,
-                                                      std::thread>>;
-
         SocketServer(int port = SocketServer::kDefaultPort,
                      const std::string& host = SocketServer::kDefaultHost,
                      int backlog = SocketServer::kDefaultTcpBacklog,
@@ -36,8 +27,6 @@ namespace ix
         virtual ~SocketServer();
         virtual void stop();
 
-        void setConnectionStateFactory(const ConnectionStateFactory& connectionStateFactory);
-
         const static int kDefaultPort;
         const static std::string kDefaultHost;
         const static int kDefaultTcpBacklog;
@@ -68,20 +57,12 @@ namespace ix
         std::atomic<bool> _stop;
         std::thread _thread;
 
-        ConnectionThreads _connectionsThreads;
-
         std::condition_variable _conditionVariable;
         std::mutex _conditionVariableMutex;
 
-        //
-        ConnectionStateFactory _connectionStateFactory;
-
         // Methods
         void run();
-        virtual void handleConnection(int fd,
-                                      std::shared_ptr<ConnectionState> connectionState) = 0;
+        virtual void handleConnection(int fd) = 0;
         virtual size_t getConnectedClientsCount() = 0;
-
-        void closeTerminatedThreads();
     };
 }

ixwebsocket/IXUrlParser.cpp

@@ -1,104 +0,0 @@
-/*
- *  IXUrlParser.cpp
- *  Author: Benjamin Sergeant
- *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
- */
-
-#include "IXUrlParser.h"
-
-#include <iostream>
-#include <sstream>
-
-
-namespace ix
-{
-    //
-    // The only difference between those 2 regex is the protocol
-    //
-    std::regex UrlParser::_httpRegex("(http|https)://([^/ :]+):?([^/ ]*)(/?[^ #?]*)\\x3f?([^ #]*)#?([^ ]*)");
-    std::regex UrlParser::_webSocketRegex("(ws|wss)://([^/ :]+):?([^/ ]*)(/?[^ #?]*)\\x3f?([^ #]*)#?([^ ]*)");
-
-    bool UrlParser::parse(const std::string& url,
-                          std::string& protocol,
-                          std::string& host,
-                          std::string& path,
-                          std::string& query,
-                          int& port,
-                          bool websocket)
-    {
-        std::cmatch what;
-        if (!regex_match(url.c_str(), what,
-                         websocket ? _webSocketRegex : _httpRegex))
-        {
-            return false;
-        }
-
-        std::string portStr;
-
-        protocol = std::string(what[1].first, what[1].second);
-        host     = std::string(what[2].first, what[2].second);
-        portStr  = std::string(what[3].first, what[3].second);
-        path     = std::string(what[4].first, what[4].second);
-        query    = std::string(what[5].first, what[5].second);
-
-        if (portStr.empty())
-        {
-            if (protocol == "ws" || protocol == "http")
-            {
-                port = 80;
-            }
-            else if (protocol == "wss" || protocol == "https")
-            {
-                port = 443;
-            }
-            else
-            {
-                // Invalid protocol. Should be caught by regex check
-                // but this missing branch trigger cpplint linter.
-                return false;
-            }
-        }
-        else
-        {
-            std::stringstream ss;
-            ss << portStr;
-            ss >> port;
-        }
-
-        if (path.empty())
-        {
-            path = "/";
-        }
-        else if (path[0] != '/')
-        {
-            path = '/' + path;
-        }
-
-        if (!query.empty())
-        {
-            path += "?";
-            path += query;
-        }
-
-        return true;
-    }
-
-    void UrlParser::printUrl(const std::string& url, bool websocket)
-    {
-        std::string protocol, host, path, query;
-        int port {0};
-
-        if (!parse(url, protocol, host, path, query, port, websocket))
-        {
-            return;
-        }
-
-        std::cout << "[" << url << "]" << std::endl;
-        std::cout << protocol << std::endl;
-        std::cout << host << std::endl;
-        std::cout << port << std::endl;
-        std::cout << path << std::endl;
-        std::cout << query << std::endl;
-        std::cout << "-------------------------------" << std::endl;
-    }
-}

ixwebsocket/IXUrlParser.h

@@ -1,31 +0,0 @@
-/*
- *  IXUrlParser.h
- *  Author: Benjamin Sergeant
- *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
- */
-
-#pragma once
-
-#include <string>
-#include <regex>
-
-namespace ix
-{
-    class UrlParser
-    {
-    public:
-        static bool parse(const std::string& url,
-                          std::string& protocol,
-                          std::string& host,
-                          std::string& path,
-                          std::string& query,
-                          int& port,
-                          bool websocket);
-
-        static void printUrl(const std::string& url, bool websocket);
-
-    private:
-        static std::regex _httpRegex;
-        static std::regex _webSocketRegex;
-    };
-}

ixwebsocket/IXWebSocket.cpp

@@ -50,7 +50,7 @@ namespace ix
         );
     }
 
-    WebSocket::~WebSocket()
+    WebSocket::~WebSocket() 
     {
         stop();
     }
@@ -79,10 +79,10 @@ namespace ix
         return _perMessageDeflateOptions;
     }
 
-    void WebSocket::setHeartBeatPeriod(int heartBeatPeriod)
+    void WebSocket::setHeartBeatPeriod(int hearBeatPeriod)
     {
         std::lock_guard<std::mutex> lock(_configMutex);
-        _heartBeatPeriod = heartBeatPeriod;
+        _heartBeatPeriod = hearBeatPeriod;
     }
 
     int WebSocket::getHeartBeatPeriod() const
@@ -135,7 +135,7 @@ namespace ix
         }
 
         _onMessageCallback(WebSocket_MessageType_Open, "", 0,
-                           WebSocketErrorInfo(),
+                           WebSocketErrorInfo(), 
                            WebSocketOpenInfo(status.uri, status.headers),
                            WebSocketCloseInfo());
         return status;
@@ -155,7 +155,7 @@ namespace ix
         }
 
         _onMessageCallback(WebSocket_MessageType_Open, "", 0,
-                           WebSocketErrorInfo(),
+                           WebSocketErrorInfo(), 
                            WebSocketOpenInfo(status.uri, status.headers),
                            WebSocketCloseInfo());
         return status;
@@ -184,7 +184,7 @@ namespace ix
         using millis = std::chrono::duration<double, std::milli>;
         millis duration;
 
-        while (true)
+        while (true) 
         {
             if (isConnected() || isClosing() || _stop || !_automaticReconnection)
             {
@@ -214,7 +214,7 @@ namespace ix
     {
         setThreadName(_url);
 
-        while (true)
+        while (true) 
         {
             if (_stop) return;
 
@@ -223,7 +223,7 @@ namespace ix
 
             if (_stop) return;
 
-            // 2. Poll to see if there's any new data available
+            // 2. Poll to see if there's any new data available 
             _ws.poll();
 
             if (_stop) return;
@@ -252,11 +252,6 @@ namespace ix
                         {
                             webSocketMessageType = WebSocket_MessageType_Pong;
                         } break;
-
-                        case WebSocketTransport::FRAGMENT:
-                        {
-                            webSocketMessageType = WebSocket_MessageType_Fragment;
-                        } break;
                     }
 
                     WebSocketErrorInfo webSocketErrorInfo;
@@ -278,7 +273,7 @@ namespace ix
 
     void WebSocket::setOnMessageCallback(const OnMessageCallback& callback)
     {
-        _onMessageCallback = callback;
+        _onMessageCallback = callback; 
     }
 
     void WebSocket::setTrafficTrackerCallback(const OnTrafficTrackerCallback& callback)
@@ -299,16 +294,9 @@ namespace ix
         }
     }
 
-    WebSocketSendInfo WebSocket::send(const std::string& text,
-                                      const OnProgressCallback& onProgressCallback)
+    WebSocketSendInfo WebSocket::send(const std::string& text)
     {
-        return sendMessage(text, SendMessageKind::Binary, onProgressCallback);
-    }
-
-    WebSocketSendInfo WebSocket::sendText(const std::string& text,
-                                          const OnProgressCallback& onProgressCallback)
-    {
-        return sendMessage(text, SendMessageKind::Text, onProgressCallback);
+        return sendMessage(text, false);
     }
 
     WebSocketSendInfo WebSocket::ping(const std::string& text)
@@ -317,12 +305,10 @@ namespace ix
         constexpr size_t pingMaxPayloadSize = 125;
         if (text.size() > pingMaxPayloadSize) return WebSocketSendInfo(false);
 
-        return sendMessage(text, SendMessageKind::Ping);
+        return sendMessage(text, true);
     }
 
-    WebSocketSendInfo WebSocket::sendMessage(const std::string& text,
-                                             SendMessageKind sendMessageKind,
-                                             const OnProgressCallback& onProgressCallback)
+    WebSocketSendInfo WebSocket::sendMessage(const std::string& text, bool ping)
     {
         if (!isConnected()) return WebSocketSendInfo(false);
 
@@ -338,22 +324,13 @@ namespace ix
         std::lock_guard<std::mutex> lock(_writeMutex);
         WebSocketSendInfo webSocketSendInfo;
 
-        switch (sendMessageKind)
+        if (ping)
         {
-            case SendMessageKind::Text:
-            {
-                webSocketSendInfo = _ws.sendText(text, onProgressCallback);
-            } break;
-
-            case SendMessageKind::Binary:
-            {
-                webSocketSendInfo = _ws.sendBinary(text, onProgressCallback);
-            } break;
-
-            case SendMessageKind::Ping:
-            {
-                webSocketSendInfo = _ws.sendPing(text);
-            } break;
+            webSocketSendInfo = _ws.sendPing(text);
+        }
+        else
+        {
+            webSocketSendInfo = _ws.sendBinary(text);
         }
 
         WebSocket::invokeTrafficTrackerCallback(webSocketSendInfo.wireSize, false);
@@ -363,7 +340,7 @@ namespace ix
 
     ReadyState WebSocket::getReadyState() const
     {
-        switch (_ws.getReadyState())
+        switch (_ws.getReadyState()) 
         {
             case ix::WebSocketTransport::OPEN: return WebSocket_ReadyState_Open;
             case ix::WebSocketTransport::CONNECTING: return WebSocket_ReadyState_Connecting;
@@ -394,9 +371,4 @@ namespace ix
     {
         _automaticReconnection = false;
     }
-
-    size_t WebSocket::bufferedAmount() const
-    {
-        return _ws.bufferedAmount();
-    }
 }

ixwebsocket/IXWebSocket.h

@@ -19,12 +19,11 @@
 #include "IXWebSocketSendInfo.h"
 #include "IXWebSocketPerMessageDeflateOptions.h"
 #include "IXWebSocketHttpHeaders.h"
-#include "IXProgressCallback.h"
 
 namespace ix
 {
     // https://developer.mozilla.org/en-US/docs/Web/API/WebSocket#Ready_state_constants
-    enum ReadyState
+    enum ReadyState 
     {
         WebSocket_ReadyState_Connecting = 0,
         WebSocket_ReadyState_Open = 1,
@@ -39,8 +38,7 @@ namespace ix
         WebSocket_MessageType_Close = 2,
         WebSocket_MessageType_Error = 3,
         WebSocket_MessageType_Ping = 4,
-        WebSocket_MessageType_Pong = 5,
-        WebSocket_MessageType_Fragment = 6
+        WebSocket_MessageType_Pong = 5
     };
 
     struct WebSocketOpenInfo
@@ -80,7 +78,7 @@ namespace ix
 
     using OnTrafficTrackerCallback = std::function<void(size_t size, bool incoming)>;
 
-    class WebSocket
+    class WebSocket 
     {
     public:
         WebSocket();
@@ -89,7 +87,7 @@ namespace ix
         void setUrl(const std::string& url);
         void setPerMessageDeflateOptions(const WebSocketPerMessageDeflateOptions& perMessageDeflateOptions);
         void setHandshakeTimeout(int handshakeTimeoutSecs);
-        void setHeartBeatPeriod(int heartBeatPeriod);
+        void setHeartBeatPeriod(int hearBeatPeriod);
 
         // Run asynchronously, by calling start and stop.
         void start();
@@ -99,10 +97,7 @@ namespace ix
         WebSocketInitResult connect(int timeoutSecs);
         void run();
 
-        WebSocketSendInfo send(const std::string& text,
-                               const OnProgressCallback& onProgressCallback = nullptr);
-        WebSocketSendInfo sendText(const std::string& text,
-                                   const OnProgressCallback& onProgressCallback = nullptr);
+        WebSocketSendInfo send(const std::string& text);
         WebSocketSendInfo ping(const std::string& text);
         void close();
 
@@ -114,16 +109,13 @@ namespace ix
         const std::string& getUrl() const;
         const WebSocketPerMessageDeflateOptions& getPerMessageDeflateOptions() const;
         int getHeartBeatPeriod() const;
-        size_t bufferedAmount() const;
 
         void enableAutomaticReconnection();
         void disableAutomaticReconnection();
 
     private:
 
-        WebSocketSendInfo sendMessage(const std::string& text,
-                                      SendMessageKind sendMessageKind,
-                                      const OnProgressCallback& callback = nullptr);
+        WebSocketSendInfo sendMessage(const std::string& text, bool ping);
 
         bool isConnected() const;
         bool isClosing() const;

ixwebsocket/IXWebSocketErrorInfo.h

@@ -8,7 +8,7 @@
 
 #include <string>
 
-namespace ix
+namespace ix 
 {
     struct WebSocketErrorInfo
     {

ixwebsocket/IXWebSocketHandshake.cpp

@@ -6,7 +6,6 @@
 
 #include "IXWebSocketHandshake.h"
 #include "IXSocketConnect.h"
-#include "IXUrlParser.h"
 
 #include "libwshandshake.hpp"
 
@@ -17,7 +16,7 @@
 #include <algorithm>
 
 
-namespace ix
+namespace ix 
 {
     WebSocketHandshake::WebSocketHandshake(std::atomic<bool>& requestInitCancellation,
                                            std::shared_ptr<Socket> socket,
@@ -33,6 +32,90 @@ namespace ix
 
     }
 
+    bool WebSocketHandshake::parseUrl(const std::string& url,
+                                      std::string& protocol,
+                                      std::string& host,
+                                      std::string& path,
+                                      std::string& query,
+                                      int& port)
+    {
+        std::regex ex("(ws|wss)://([^/ :]+):?([^/ ]*)(/?[^ #?]*)\\x3f?([^ #]*)#?([^ ]*)");
+        std::cmatch what;
+        if (!regex_match(url.c_str(), what, ex))
+        {
+            return false;
+        }
+
+        std::string portStr;
+
+        protocol = std::string(what[1].first, what[1].second);
+        host     = std::string(what[2].first, what[2].second);
+        portStr  = std::string(what[3].first, what[3].second);
+        path     = std::string(what[4].first, what[4].second);
+        query    = std::string(what[5].first, what[5].second);
+
+        if (portStr.empty())
+        {
+            if (protocol == "ws")
+            {
+                port = 80;
+            }
+            else if (protocol == "wss")
+            {
+                port = 443;
+            }
+            else
+            {
+                // Invalid protocol. Should be caught by regex check
+                // but this missing branch trigger cpplint linter.
+                return false;
+            }
+        }
+        else
+        {
+            std::stringstream ss;
+            ss << portStr;
+            ss >> port;
+        }
+
+        if (path.empty())
+        {
+            path = "/";
+        }
+        else if (path[0] != '/')
+        {
+            path = '/' + path;
+        }
+
+        if (!query.empty())
+        {
+            path += "?";
+            path += query;
+        }
+
+        return true;
+    }
+
+    void WebSocketHandshake::printUrl(const std::string& url)
+    {
+        std::string protocol, host, path, query;
+        int port {0};
+
+        if (!WebSocketHandshake::parseUrl(url, protocol, host,
+                                          path, query, port))
+        {
+            return;
+        }
+
+        std::cout << "[" << url << "]" << std::endl;
+        std::cout << protocol << std::endl;
+        std::cout << host << std::endl;
+        std::cout << port << std::endl;
+        std::cout << path << std::endl;
+        std::cout << query << std::endl;
+        std::cout << "-------------------------------" << std::endl;
+    }
+
     std::string WebSocketHandshake::trim(const std::string& str)
     {
         std::string out(str);
@@ -88,7 +171,7 @@ namespace ix
 
     std::string WebSocketHandshake::genRandomString(const int len)
     {
-        std::string alphanum =
+        std::string alphanum = 
             "0123456789"
             "ABCDEFGH"
             "abcdefgh";
@@ -109,12 +192,67 @@ namespace ix
         return s;
     }
 
+
+    std::pair<bool, WebSocketHttpHeaders> WebSocketHandshake::parseHttpHeaders(
+        const CancellationRequest& isCancellationRequested)
+    {
+        WebSocketHttpHeaders headers;
+
+        char line[256];
+        int i;
+
+        while (true) 
+        {
+            int colon = 0;
+
+            for (i = 0;
+                 i < 2 || (i < 255 && line[i-2] != '\r' && line[i-1] != '\n');
+                 ++i)
+            {
+                if (!_socket->readByte(line+i, isCancellationRequested))
+                {
+                    return std::make_pair(false, headers);
+                }
+
+                if (line[i] == ':' && colon == 0)
+                {
+                    colon = i;
+                }
+            }
+            if (line[0] == '\r' && line[1] == '\n')
+            {
+                break;
+            }
+
+            // line is a single header entry. split by ':', and add it to our
+            // header map. ignore lines with no colon.
+            if (colon > 0)
+            {
+                line[i] = '\0';
+                std::string lineStr(line);
+                // colon is ':', colon+1 is ' ', colon+2 is the start of the value.
+                // i is end of string (\0), i-colon is length of string minus key;
+                // subtract 1 for '\0', 1 for '\n', 1 for '\r',
+                // 1 for the ' ' after the ':', and total is -4
+                std::string name(lineStr.substr(0, colon));
+                std::string value(lineStr.substr(colon + 2, i - colon - 4));
+
+                // Make the name lower case.
+                std::transform(name.begin(), name.end(), name.begin(), ::tolower);
+
+                headers[name] = value;
+            }
+        }
+
+        return std::make_pair(true, headers);
+    }
+
     WebSocketInitResult WebSocketHandshake::sendErrorResponse(int code, const std::string& reason)
     {
         std::stringstream ss;
         ss << "HTTP/1.1 ";
         ss << code;
-        ss << " ";
+        ss << "\r\n";
         ss << reason;
         ss << "\r\n";
 
@@ -139,7 +277,7 @@ namespace ix
     {
         _requestInitCancellation = false;
 
-        auto isCancellationRequested =
+        auto isCancellationRequested = 
             makeCancellationRequestWithTimeout(timeoutSecs, _requestInitCancellation);
 
         std::string errMsg;
@@ -217,7 +355,7 @@ namespace ix
             return WebSocketInitResult(false, status, ss.str());
         }
 
-        auto result = parseHttpHeaders(_socket, isCancellationRequested);
+        auto result = parseHttpHeaders(isCancellationRequested);
         auto headersValid = result.first;
         auto headers = result.second;
 
@@ -234,7 +372,7 @@ namespace ix
         }
 
         // Check the value of the connection field
-        // Some websocket servers (Go/Gorilla?) send lowercase values for the
+        // Some websocket servers (Go/Gorilla?) send lowercase values for the 
         // connection header, so do a case insensitive comparison
         if (!insensitiveStringCompare(headers["connection"], "Upgrade"))
         {
@@ -280,7 +418,7 @@ namespace ix
         // Set the socket to non blocking mode + other tweaks
         SocketConnect::configure(fd);
 
-        auto isCancellationRequested =
+        auto isCancellationRequested = 
             makeCancellationRequestWithTimeout(timeoutSecs, _requestInitCancellation);
 
         std::string remote = std::string("remote fd ") + std::to_string(fd);
@@ -294,7 +432,7 @@ namespace ix
         {
             return sendErrorResponse(400, "Error reading HTTP request line");
         }
-
+        
         // Validate request line (GET /foo HTTP/1.1\r\n)
         auto requestLine = parseRequestLine(line);
         auto method      = std::get<0>(requestLine);
@@ -312,7 +450,7 @@ namespace ix
         }
 
         // Retrieve and validate HTTP headers
-        auto result = parseHttpHeaders(_socket, isCancellationRequested);
+        auto result = parseHttpHeaders(isCancellationRequested);
         auto headersValid = result.first;
         auto headers = result.second;
 
@@ -353,7 +491,7 @@ namespace ix
         WebSocketHandshakeKeyGen::generate(headers["sec-websocket-key"].c_str(), output);
 
         std::stringstream ss;
-        ss << "HTTP/1.1 101 Switching Protocols\r\n";
+        ss << "HTTP/1.1 101\r\n";
         ss << "Sec-WebSocket-Accept: " << std::string(output) << "\r\n";
         ss << "Upgrade: websocket\r\n";
         ss << "Connection: Upgrade\r\n";

ixwebsocket/IXWebSocketHandshake.h

@@ -18,7 +18,7 @@
 #include <memory>
 #include <tuple>
 
-namespace ix
+namespace ix 
 {
     struct WebSocketInitResult
     {
@@ -59,10 +59,19 @@ namespace ix
         WebSocketInitResult serverHandshake(int fd,
                                             int timeoutSecs);
 
+        static bool parseUrl(const std::string& url,
+                             std::string& protocol,
+                             std::string& host,
+                             std::string& path,
+                             std::string& query,
+                             int& port);
+
     private:
+        static void printUrl(const std::string& url);
         std::string genRandomString(const int len);
 
         // Parse HTTP headers
+        std::pair<bool, WebSocketHttpHeaders> parseHttpHeaders(const CancellationRequest& isCancellationRequested);
         WebSocketInitResult sendErrorResponse(int code, const std::string& reason);
 
         std::tuple<std::string, std::string, std::string> parseRequestLine(const std::string& line);