Support server subprotocols

* Fix for missing AI_NUMERICSERV on < 10.6

* Do not use pthread_setname_np on < 10.6

.github/workflows/unittest_windows.yml

@@ -1,27 +0,0 @@
-name: windows
-on:
-  push:
-    paths-ignore:
-    - 'docs/**'
-  pull_request:
-
-jobs:
-  windows:
-    runs-on: windows-latest
-    steps:
-    - uses: actions/checkout@v1
-    - uses: seanmiddleditch/gha-setup-vsdevenv@master
-    - uses: seanmiddleditch/gha-setup-ninja@master
-    - run: |
-        mkdir build
-        cd build
-        cmake -GNinja -DCMAKE_CXX_COMPILER=cl.exe -DCMAKE_C_COMPILER=cl.exe -DUSE_WS=1 -DUSE_TEST=1 -DUSE_ZLIB=OFF -DBUILD_SHARED_LIBS=OFF ..
-    - run: |
-        cd build
-        ninja
-    - run: |
-        cd build
-        ninja test
-
-#- run: ../build/test/ixwebsocket_unittest.exe
-# working-directory: test

.github/workflows/unittest_windows_gcc.yml

@@ -11,7 +11,7 @@ jobs:
     steps:
     - uses: actions/checkout@v1
     - uses: seanmiddleditch/gha-setup-ninja@master
-    - uses: egor-tensin/setup-mingw@v2
+    - uses: bsergean/setup-mingw@d79ce405bac9edef3a1726ef00554a56f0bafe66
     - run: |
         mkdir build
         cd build

.gitignore

@@ -8,3 +8,5 @@ ws/.srl
 ixhttpd
 makefile
 a.out
+.idea/
+cmake-build-debug/

CMakeLists.txt

@@ -6,7 +6,7 @@
 cmake_minimum_required(VERSION 3.4.1...3.17.2)
 set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMake;${CMAKE_MODULE_PATH}")
 
-project(ixwebsocket LANGUAGES C CXX VERSION 11.4.4)
+project(ixwebsocket LANGUAGES C CXX VERSION 11.4.6)
 
 set (CMAKE_CXX_STANDARD 11)
 set (CXX_STANDARD_REQUIRED ON)
@@ -168,8 +168,7 @@ if(BUILD_SHARED_LIBS)
     )
 
     # Set library version
-    set_target_properties(ixwebsocket PROPERTIES VERSION ${CMAKE_PROJECT_VERSION})
-
+    set_target_properties(ixwebsocket PROPERTIES VERSION ${PROJECT_VERSION})
 else()
     # Static library
     add_library( ixwebsocket

README.md

@@ -1,5 +1,7 @@
 ## Hello world
 
+(note from the main developer, sadly I don't have too much time to devote to this library anymore, maybe it's time to pass the maintenance to someone else more motivated ?)
+
 IXWebSocket is a C++ library for WebSocket client and server development. It has minimal dependencies (no boost), is very simple to use and support everything you'll likely need for websocket dev (SSL, deflate compression, compiles on most platforms, etc...). HTTP client and server code is also available, but it hasn't received as much testing.
 
 It is been used on big mobile video game titles sending and receiving tons of messages since 2017 (iOS and Android). It was tested on macOS, iOS, Linux, Android, Windows and FreeBSD. Two important design goals are simplicity and correctness.
@@ -99,15 +101,16 @@ Starting with the 11.0.8 release, IXWebSocket should be fully C++11 compatible.
 If your company or project is using this library, feel free to open an issue or PR to amend this list.
 
 - [Machine Zone](https://www.mz.com)
-- [Tokio](https://gitlab.com/HCInk/tokio), a discord library focused on audio playback with node bindings.
+- [Tokio](https://github.com/liz3/tokio), a discord library focused on audio playback with node bindings.
 - [libDiscordBot](https://github.com/tostc/libDiscordBot/tree/master), an easy to use Discord-bot framework.
 - [gwebsocket](https://github.com/norrbotten/gwebsocket), a websocket (lua) module for Garry's Mod
-- [DisCPP](https://github.com/DisCPP/DisCPP), a simple but feature rich Discord API wrapper
+- [DisCPP](https://github.com/DisCPP/DisCPP), a simple but feature rich Discord API wrapper (archived as of Oct 8, 2021)
 - [discord.cpp](https://github.com/luccanunes/discord.cpp), a discord library for making bots
 - [Teleport](http://teleportconnect.com/), Teleport is your own personal remote robot avatar
 - [Abaddon](https://github.com/uowuo/abaddon), An alternative Discord client made with C++/gtkmm 
 - [NovaCoin](https://github.com/novacoin-project/novacoin), a hybrid scrypt PoW + PoS based cryptocurrency.
 - [Candy](https://github.com/lanthora/candy), A WebSocket and TUN based VPN for Linux 
+- [ITGmania](https://github.com/itgmania/itgmania), a cross platform Dance Dance Revolution-like emulator.
 
 ## Alternative libraries
 
@@ -115,8 +118,8 @@ There are plenty of great websocket libraries out there, which might work for yo
 
 * [websocketpp](https://github.com/zaphoyd/websocketpp) - C++
 * [beast](https://github.com/boostorg/beast) - C++
+* [µWebSockets](https://github.com/uNetworking/uWebSockets) - C++
 * [libwebsockets](https://libwebsockets.org/) - C
-* [µWebSockets](https://github.com/uNetworking/uWebSockets) - C
 * [wslay](https://github.com/tatsuhiro-t/wslay) - C
 
 [uvweb](https://github.com/bsergean/uvweb) is a library written by the IXWebSocket author which is built on top of [uvw](https://github.com/skypjack/uvw), which is a C++ wrapper for [libuv](https://libuv.org/). It has more dependencies and does not support SSL at this point, but it can be used to open multiple connections within a single OS thread thanks to libuv.
@@ -134,9 +137,7 @@ To check the performance of a websocket library, you can look at the [autoroute]
 | Windows           | Disabled          | None              | [![Build2][5]][0] |
 | UWP               | Disabled          | None              | [![Build2][6]][0] |
 | Linux             | OpenSSL           | Address Sanitizer | [![Build2][7]][0] |
-| Mingw             | Disabled          | None              | [![Build2][8]][0] |
 
-* ASAN fails on Linux because of a known problem, we need a 
 * Some tests are disabled on Windows/UWP because of a pathing problem
 * TLS and ZLIB are disabled on Windows/UWP because enabling make the CI run takes a lot of time, for setting up vcpkg.
 
@@ -148,5 +149,4 @@ To check the performance of a websocket library, you can look at the [autoroute]
 [5]: https://github.com/machinezone/IXWebSocket/workflows/windows/badge.svg
 [6]: https://github.com/machinezone/IXWebSocket/workflows/uwp/badge.svg
 [7]: https://github.com/machinezone/IXWebSocket/workflows/linux_asan/badge.svg
-[8]: https://github.com/machinezone/IXWebSocket/workflows/unittest_windows_gcc/badge.svg
 

docs/CHANGELOG.md

@@ -2,6 +2,10 @@
 
 All changes to this project will be documented in this file.
 
+## [11.4.5] - 2024-06-05
+
+New changes are documented in the Release page in the GitHub repository.
+
 ## [11.4.4] - 2023-06-05
 
 ## [11.4.3] - 2022-05-13

docs/usage.md

@@ -445,6 +445,17 @@ server.wait();
 
 ```
 
+### Heartbeat
+
+You can configure an optional heartbeat / keep-alive for the WebSocket server. The heartbeat interval can be adjusted or disabled when constructing the `WebSocketServer`. Setting the interval to `-1` disables the heartbeat feature; this is the default setting. The parameter you set will be applied to every `WebSocket` object that the server creates.
+
+To enable a 45 second heartbeat on a `WebSocketServer`:
+
+```cpp
+int pingIntervalSeconds = 45;
+ix::WebSocketServer server(port, host, backlog, maxConnections, handshakeTimeoutSecs, addressFamily, pingIntervalSeconds);
+```
+
 ## HTTP client API
 
 ```cpp

ixwebsocket/IXDNSLookup.cpp

@@ -27,9 +27,19 @@
 
 // mingw build quirks
 #if defined(_WIN32) && defined(__GNUC__)
+#ifndef AI_NUMERICSERV
 #define AI_NUMERICSERV NI_NUMERICSERV
+#endif
+#ifndef AI_ADDRCONFIG
 #define AI_ADDRCONFIG LUP_ADDRCONFIG
 #endif
+#endif
+
+#ifdef __APPLE__
+#ifndef AI_NUMERICSERV
+#define AI_NUMERICSERV 0
+#endif
+#endif
 
 namespace ix
 {

ixwebsocket/IXHttp.cpp

@@ -133,16 +133,20 @@ namespace ix
         if (headers.find("Content-Length") != headers.end())
         {
             int contentLength = 0;
-            try
             {
-                contentLength = std::stoi(headers["Content-Length"]);
+                const char* p = headers["Content-Length"].c_str();
+                char* p_end{};
+                errno = 0;
+                long val = std::strtol(p, &p_end, 10);
+                if (p_end == p            // invalid argument
+                    || errno == ERANGE    // out of range
+                    || val < std::numeric_limits<int>::min()
+                    || val > std::numeric_limits<int>::max()) {
+                    return std::make_tuple(
+                        false, "Error parsing HTTP Header 'Content-Length'", httpRequest);
+                }
+                contentLength = val;
             }
-            catch (const std::exception&)
-            {
-                return std::make_tuple(
-                    false, "Error parsing HTTP Header 'Content-Length'", httpRequest);
-            }
-
             if (contentLength < 0)
             {
                 return std::make_tuple(

ixwebsocket/IXHttpServer.cpp

@@ -148,6 +148,7 @@ namespace ix
                     content = gzipCompress(content);
                     headers["Content-Encoding"] = "gzip";
                 }
+                headers["Accept-Encoding"] = "gzip";
 #endif
 
                 // Log request
@@ -161,11 +162,6 @@ namespace ix
                 // headers["Content-Type"] = "application/octet-stream";
                 headers["Accept-Ranges"] = "none";
 
-                for (auto&& it : request->headers)
-                {
-                    headers[it.first] = it.second;
-                }
-
                 return std::make_shared<HttpResponse>(
                     200, "OK", HttpErrorCode::Ok, headers, content);
             });

ixwebsocket/IXNetSystem.cpp

@@ -69,7 +69,7 @@ namespace ix
             {
                 // We must deselect the networkevents from the socket event. Otherwise the
                 // socket will report states that aren't there.
-                if (_fd != nullptr && _fd->fd != -1)
+                if (_fd != nullptr && (int)_fd->fd != -1)
                     WSAEventSelect(_fd->fd, _event, 0);
                 WSACloseEvent(_event);
             }
@@ -171,7 +171,7 @@ namespace ix
             int count = 0;
             // WSAWaitForMultipleEvents returns the index of the first signaled event. And to emulate WSAPoll()
             // all the signaled events must be processed.
-            while (socketIndex < socketEvents.size())
+            while (socketIndex < (int)socketEvents.size())
             {
                 struct pollfd* fd = socketEvents[socketIndex];
 
@@ -345,7 +345,7 @@ namespace ix
                     buf[best] = buf[best + 1] = ':';
                     memmove(buf + best + 2, buf + best + max, i - best - max + 1);
                 }
-                if (strlen(buf) < l)
+                if (strlen(buf) < (size_t)l)
                 {
                     strcpy(s, buf);
                     return s;

ixwebsocket/IXSelectInterruptPipe.cpp

@@ -34,8 +34,12 @@ namespace ix
 
     SelectInterruptPipe::~SelectInterruptPipe()
     {
-        ::close(_fildes[kPipeReadIndex]);
-        ::close(_fildes[kPipeWriteIndex]);
+        if (-1 != _fildes[kPipeReadIndex]) {
+            ::close(_fildes[kPipeReadIndex]);
+        }
+        if (-1 != _fildes[kPipeWriteIndex]) {
+            ::close(_fildes[kPipeWriteIndex]);
+        }
         _fildes[kPipeReadIndex] = -1;
         _fildes[kPipeWriteIndex] = -1;
     }

ixwebsocket/IXSetThreadName.cpp

@@ -15,6 +15,10 @@
 #include <pthread_np.h>
 #endif
 
+#ifdef __APPLE__
+#include <AvailabilityMacros.h>
+#endif
+
 // Windows
 #ifdef _WIN32
 #include <windows.h>
@@ -58,7 +62,7 @@ namespace ix
 
     void setThreadName(const std::string& name)
     {
-#if defined(__APPLE__)
+#if defined(__APPLE__) && (MAC_OS_X_VERSION_MIN_REQUIRED >= 1060)
         //
         // Apple reserves 16 bytes for its thread names
         // Notice that the Apple version of pthread_setname_np

ixwebsocket/IXSocket.h

@@ -13,6 +13,10 @@
 #include <mutex>
 #include <string>
 
+#ifdef __APPLE__
+#include <sys/types.h>
+#endif
+
 #ifdef _WIN32
 #include <basetsd.h>
 #ifdef _MSC_VER

ixwebsocket/IXSocketMbedTLS.cpp

@@ -47,9 +47,16 @@ namespace ix
         mbedtls_x509_crt_init(&_cacert);
         mbedtls_x509_crt_init(&_cert);
         mbedtls_pk_init(&_pkey);
+        // Initialize the PSA Crypto API if required by the version of Mbed TLS (3.6.0).
+        // This allows the X.509/TLS libraries to use PSA for crypto operations.
+        // See: https://github.com/Mbed-TLS/mbedtls/blob/development/docs/use-psa-crypto.md
+        if (MBEDTLS_VERSION_MAJOR >= 3 && MBEDTLS_VERSION_MINOR >= 6 && MBEDTLS_VERSION_PATCH >= 0)
+        {
+            psa_crypto_init();
+        }
     }
 
-    bool SocketMbedTLS::loadSystemCertificates(std::string& /* errorMsg */)
+    bool SocketMbedTLS::loadSystemCertificates(std::string& errorMsg)
     {
 #ifdef _WIN32
         DWORD flags = CERT_STORE_READONLY_FLAG | CERT_STORE_OPEN_EXISTING_FLAG |
@@ -352,6 +359,11 @@ namespace ix
                 return res;
             }
 
+            if (res == 0)
+            {
+                errno = ECONNRESET;
+            }
+
             if (res == MBEDTLS_ERR_SSL_WANT_READ || res == MBEDTLS_ERR_SSL_WANT_WRITE)
             {
                 errno = EWOULDBLOCK;

ixwebsocket/IXSocketOpenSSL.cpp

@@ -26,6 +26,7 @@
 
 #ifdef _WIN32
 // For manipulating the certificate store
+#include <windows.h>
 #include <wincrypt.h>
 #endif
 
@@ -49,7 +50,7 @@ namespace
         X509_STORE* opensslStore = SSL_CTX_get_cert_store(ssl);
 
         int certificateCount = 0;
-        while (certificateIterator = CertEnumCertificatesInStore(systemStore, certificateIterator))
+        while ((certificateIterator = CertEnumCertificatesInStore(systemStore, certificateIterator)))
         {
             X509* x509 = d2i_X509(NULL,
                                   (const unsigned char**) &certificateIterator->pbCertEncoded,
@@ -293,10 +294,16 @@ namespace ix
      */
     bool SocketOpenSSL::checkHost(const std::string& host, const char* pattern)
     {
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+        return true;
+#else
+
 #ifdef _WIN32
         return PathMatchSpecA(host.c_str(), pattern);
 #else
         return fnmatch(pattern, host.c_str(), 0) != FNM_NOMATCH;
+#endif
+
 #endif
     }
 

ixwebsocket/IXUrlParser.cpp

@@ -180,7 +180,7 @@ namespace
                 bHasUserName = true;
                 break;
             }
-            else if (*LocalString == '/')
+            else if (*LocalString == '/' || *LocalString == '?')
             {
                 // end of <host>:<port> specification
                 bHasUserName = false;
@@ -242,7 +242,7 @@ namespace
                 LocalString++;
                 break;
             }
-            else if (!bHasBracket && (*LocalString == ':' || *LocalString == '/'))
+            else if (!bHasBracket && (*LocalString == ':' || *LocalString == '/' || *LocalString == '?'))
             {
                 // port number is specified
                 break;
@@ -280,12 +280,14 @@ namespace
         }
 
         // skip '/'
-        if (*CurrentString != '/')
+        if (*CurrentString != '/' && *CurrentString != '?')
         {
             return clParseURL(LUrlParserError_NoSlash);
         }
 
-        CurrentString++;
+        if (*CurrentString != '?') {
+            CurrentString++;
+        }
 
         // parse the path
         LocalString = CurrentString;

ixwebsocket/IXWebSocket.cpp

@@ -41,6 +41,7 @@ namespace ix
         , _enablePong(kDefaultEnablePong)
         , _pingIntervalSecs(kDefaultPingIntervalSecs)
         , _pingType(SendMessageKind::Ping)
+        , _autoThreadName(true)
     {
         _ws.setOnCloseCallback(
             [this](uint16_t code, const std::string& reason, size_t wireSize, bool remote)
@@ -208,7 +209,7 @@ namespace ix
 
         WebSocketHttpHeaders headers(_extraHeaders);
         std::string subProtocolsHeader;
-        auto subProtocols = getSubProtocols();
+        const auto &subProtocols = getSubProtocols();
         if (!subProtocols.empty())
         {
             //
@@ -218,7 +219,7 @@ namespace ix
             // 'json,msgpack'
             //
             int i = 0;
-            for (auto subProtocol : subProtocols)
+            for (const auto & subProtocol : subProtocols)
             {
                 if (i++ != 0)
                 {
@@ -264,7 +265,8 @@ namespace ix
         }
 
         WebSocketInitResult status =
-            _ws.connectToSocket(std::move(socket), timeoutSecs, enablePerMessageDeflate, request);
+            _ws.connectToSocket(
+            std::move(socket), timeoutSecs, enablePerMessageDeflate, getSubProtocols(), request);
         if (!status.success)
         {
             return status;
@@ -370,7 +372,10 @@ namespace ix
 
     void WebSocket::run()
     {
-        setThreadName(getUrl());
+        if (_autoThreadName)
+        {
+            setThreadName(getUrl());
+        }
 
         bool firstConnectionAttempt = true;
 
@@ -627,4 +632,9 @@ namespace ix
         std::lock_guard<std::mutex> lock(_configMutex);
         return _subProtocols;
     }
+
+    void WebSocket::setAutoThreadName(bool enabled)
+    {
+        _autoThreadName = enabled;
+    }
 } // namespace ix

ixwebsocket/IXWebSocket.h

@@ -119,6 +119,8 @@ namespace ix
         uint32_t getMinWaitBetweenReconnectionRetries() const;
         const std::vector<std::string>& getSubProtocols();
 
+        void setAutoThreadName(bool enabled);
+
     private:
         WebSocketSendInfo sendMessage(const IXWebSocketSendData& message,
                                       SendMessageKind sendMessageKind,
@@ -182,6 +184,9 @@ namespace ix
         // Subprotocols
         std::vector<std::string> _subProtocols;
 
+        // enable or disable auto set thread name
+        bool _autoThreadName;
+
         friend class WebSocketServer;
     };
 } // namespace ix

ixwebsocket/IXWebSocketHandshake.cpp

@@ -246,8 +246,30 @@ namespace ix
         return WebSocketInitResult(true, status, "", headers, path);
     }
 
+    void WebSocketHandshake::getSelectedSubProtocol(const std::vector<std::string>& subProtocols,
+                                                    std::string& selectedSubProtocol,
+                                                    const std::string& headerSubProtocol)
+    {
+        std::stringstream ss;
+        ss << headerSubProtocol;
+        std::string protocol;
+        while (std::getline(ss, protocol, ','))
+        {
+            bool subProtocolFound = false;
+            for (const auto& supportedSubProtocol : subProtocols)
+            {
+                if (protocol != supportedSubProtocol) continue;
+                selectedSubProtocol = protocol;
+                subProtocolFound = true;
+                break;
+            }
+            if (subProtocolFound) break;
+        }
+    }
+
     WebSocketInitResult WebSocketHandshake::serverHandshake(int timeoutSecs,
                                                             bool enablePerMessageDeflate,
+                                                            const std::vector<std::string>& subProtocols,
                                                             HttpRequestPtr request)
     {
         _requestInitCancellation = false;
@@ -362,6 +384,17 @@ namespace ix
         ss << "Connection: Upgrade\r\n";
         ss << "Server: " << userAgent() << "\r\n";
 
+        if(!subProtocols.empty())
+        {
+            std::string headerSubProtocol = headers["sec-websocket-protocol"];
+            std::string selectedSubProtocol;
+            getSelectedSubProtocol(subProtocols, selectedSubProtocol, headerSubProtocol);
+            if(!selectedSubProtocol.empty())
+            {
+                ss << "Sec-WebSocket-Protocol: " << selectedSubProtocol << "\r\n";
+            }
+        }
+
         // Parse the client headers. Does it support deflate ?
         std::string header = headers["sec-websocket-extensions"];
         WebSocketPerMessageDeflateOptions webSocketPerMessageDeflateOptions(header);

ixwebsocket/IXWebSocketHandshake.h

@@ -39,6 +39,7 @@ namespace ix
 
         WebSocketInitResult serverHandshake(int timeoutSecs,
                                             bool enablePerMessageDeflate,
+                                            const std::vector<std::string>& subProtocols,
                                             HttpRequestPtr request = nullptr);
 
     private:
@@ -49,6 +50,10 @@ namespace ix
 
         bool insensitiveStringCompare(const std::string& a, const std::string& b);
 
+        static void getSelectedSubProtocol(const std::vector<std::string>& subProtocols,
+                                    std::string& selectedSubProtocol,
+                                    const std::string& headerSubProtocol);
+
         std::atomic<bool>& _requestInitCancellation;
         std::unique_ptr<Socket>& _socket;
         WebSocketPerMessageDeflatePtr& _perMessageDeflate;

ixwebsocket/IXWebSocketProxyServer.cpp

@@ -57,7 +57,7 @@ namespace ix
         server.setOnConnectionCallback(
             [remoteUrl, remoteUrlsMapping](std::weak_ptr<ix::WebSocket> webSocket,
                                            std::shared_ptr<ConnectionState> connectionState) {
-                auto state = std::dynamic_pointer_cast<ProxyConnectionState>(connectionState);
+                auto state = std::static_pointer_cast<ProxyConnectionState>(connectionState);
                 auto remoteIp = connectionState->getRemoteIp();
 
                 // Server connection

ixwebsocket/IXWebSocketServer.cpp

@@ -19,17 +19,20 @@ namespace ix
 {
     const int WebSocketServer::kDefaultHandShakeTimeoutSecs(3); // 3 seconds
     const bool WebSocketServer::kDefaultEnablePong(true);
+    const int WebSocketServer::kPingIntervalSeconds(-1); // disable heartbeat
 
     WebSocketServer::WebSocketServer(int port,
                                      const std::string& host,
                                      int backlog,
                                      size_t maxConnections,
                                      int handshakeTimeoutSecs,
-                                     int addressFamily)
+                                     int addressFamily,
+                                     int pingIntervalSeconds)
         : SocketServer(port, host, backlog, maxConnections, addressFamily)
         , _handshakeTimeoutSecs(handshakeTimeoutSecs)
         , _enablePong(kDefaultEnablePong)
         , _enablePerMessageDeflate(true)
+        , _pingIntervalSeconds(pingIntervalSeconds)
     {
     }
 
@@ -76,6 +79,16 @@ namespace ix
         _onClientMessageCallback = callback;
     }
 
+    void WebSocketServer::addSubProtocol(const std::string& subProtocol)
+    {
+        _subProtocols.push_back(subProtocol);
+    }
+
+    const std::vector<std::string>& WebSocketServer::getSubProtocols()
+    {
+        return _subProtocols;
+    }
+
     void WebSocketServer::handleConnection(std::unique_ptr<Socket> socket,
                                            std::shared_ptr<ConnectionState> connectionState)
     {
@@ -91,6 +104,15 @@ namespace ix
         setThreadName("Srv:ws:" + connectionState->getId());
 
         auto webSocket = std::make_shared<WebSocket>();
+
+        webSocket->setAutoThreadName(false);
+        webSocket->setPingInterval(_pingIntervalSeconds);
+        if(!_subProtocols.empty())
+        {
+            for(const auto& subProtocol : _subProtocols)
+                webSocket->addSubProtocol(subProtocol);
+        }
+
         if (_onConnectionCallback)
         {
             _onConnectionCallback(webSocket, connectionState);

ixwebsocket/IXWebSocketServer.h

@@ -33,7 +33,8 @@ namespace ix
                         int backlog = SocketServer::kDefaultTcpBacklog,
                         size_t maxConnections = SocketServer::kDefaultMaxConnections,
                         int handshakeTimeoutSecs = WebSocketServer::kDefaultHandShakeTimeoutSecs,
-                        int addressFamily = SocketServer::kDefaultAddressFamily);
+                        int addressFamily = SocketServer::kDefaultAddressFamily,
+                        int pingIntervalSeconds = WebSocketServer::kPingIntervalSeconds);
         virtual ~WebSocketServer();
         virtual void stop() final;
 
@@ -44,6 +45,9 @@ namespace ix
         void setOnConnectionCallback(const OnConnectionCallback& callback);
         void setOnClientMessageCallback(const OnClientMessageCallback& callback);
 
+        void addSubProtocol(const std::string& subProtocol);
+        const std::vector<std::string>& getSubProtocols();
+
         // Get all the connected clients
         std::set<std::shared_ptr<WebSocket>> getClients();
 
@@ -61,6 +65,8 @@ namespace ix
         int _handshakeTimeoutSecs;
         bool _enablePong;
         bool _enablePerMessageDeflate;
+        int _pingIntervalSeconds;
+        std::vector<std::string> _subProtocols;
 
         OnConnectionCallback _onConnectionCallback;
         OnClientMessageCallback _onClientMessageCallback;
@@ -69,6 +75,7 @@ namespace ix
         std::set<std::shared_ptr<WebSocket>> _clients;
 
         const static bool kDefaultEnablePong;
+        const static int kPingIntervalSeconds;
 
         // Methods
         virtual void handleConnection(std::unique_ptr<Socket> socket,

ixwebsocket/IXWebSocketTransport.cpp

@@ -172,6 +172,7 @@ namespace ix
     WebSocketInitResult WebSocketTransport::connectToSocket(std::unique_ptr<Socket> socket,
                                                             int timeoutSecs,
                                                             bool enablePerMessageDeflate,
+                                                            const std::vector<std::string>& subProtocols,
                                                             HttpRequestPtr request)
     {
         std::lock_guard<std::mutex> lock(_socketMutex);
@@ -190,7 +191,7 @@ namespace ix
                                               _enablePerMessageDeflate);
 
         auto result =
-            webSocketHandshake.serverHandshake(timeoutSecs, enablePerMessageDeflate, request);
+            webSocketHandshake.serverHandshake(timeoutSecs, enablePerMessageDeflate, subProtocols, request);
         if (result.success)
         {
             setReadyState(ReadyState::OPEN);
@@ -1174,7 +1175,22 @@ namespace ix
     {
         _requestInitCancellation = true;
 
-        if (_readyState == ReadyState::CLOSING || _readyState == ReadyState::CLOSED) return;
+        if (_readyState == ReadyState::CLOSING || _readyState == ReadyState::CLOSED)
+        {
+            // Wake up the socket polling thread, as
+            // Socket::isReadyToRead() might be still waiting the
+            // interrupt event to happen.
+            bool wakeUpPoll = false;
+            {
+              std::lock_guard<std::mutex> lock(_socketMutex);
+              wakeUpPoll = (_socket && _socket->isWakeUpFromPollSupported());
+            }
+            if (wakeUpPoll)
+            {
+                wakeUpFromPoll(SelectInterrupt::kCloseRequest);
+            }
+            return;
+        }
 
         if (closeWireSize == 0)
         {

ixwebsocket/IXWebSocketTransport.h

@@ -88,6 +88,7 @@ namespace ix
         WebSocketInitResult connectToSocket(std::unique_ptr<Socket> socket,
                                             int timeoutSecs,
                                             bool enablePerMessageDeflate,
+                                            const std::vector<std::string>& subProtocols,
                                             HttpRequestPtr request = nullptr);
 
         PollResult poll();

ixwebsocket/IXWebSocketVersion.h

@@ -6,4 +6,4 @@
 
 #pragma once
 
-#define IX_WEBSOCKET_VERSION "11.4.4"
+#define IX_WEBSOCKET_VERSION "11.4.6"

makefile.dev

@@ -27,9 +27,9 @@ install: brew
 #
 brew:
 ifeq ($(shell uname),Darwin)
-	mkdir -p build && (cd build ; cmake -GNinja -DCMAKE_INSTALL_PREFIX=/opt/homebrew -DCMAKE_UNITY_BUILD=OFF -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_BUILD_TYPE=Debug -DUSE_TLS=1 -DUSE_WS=1 -DUSE_TEST=1 .. ; ninja install)
+	mkdir -p build && (cd build ; cmake -GNinja -DCMAKE_INSTALL_PREFIX=/opt/homebrew -DCMAKE_UNITY_BUILD=OFF -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_BUILD_TYPE=Debug -DUSE_TLS=1 -DUSE_WS=1 -DUSE_TEST=1 .. ; ninja)
 else
-	mkdir -p build && (cd build ; cmake -GNinja -DCMAKE_UNITY_BUILD=OFF -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_BUILD_TYPE=Debug -DUSE_TLS=1 -DUSE_WS=1 -DUSE_TEST=1 .. ; ninja install)
+	mkdir -p build && (cd build ; cmake -GNinja -DCMAKE_UNITY_BUILD=OFF -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_BUILD_TYPE=Debug -DUSE_TLS=1 -DUSE_WS=1 -DUSE_TEST=1 .. ; ninja)
 endif
 
 # Docker default target. We've had problems with OpenSSL and TLS 1.3 (on the
@@ -39,10 +39,10 @@ ws_mbedtls_install:
 	mkdir -p build && (cd build ; cmake -GNinja -DCMAKE_UNITY_BUILD=ON -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_BUILD_TYPE=MinSizeRel -DUSE_ZLIB=OFF -DUSE_TLS=1 -DUSE_WS=1 -DUSE_MBED_TLS=1 .. ; ninja install)
 
 ws:
-	mkdir -p build && (cd build ; cmake -GNinja -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_BUILD_TYPE=Debug -DUSE_TLS=1 -DUSE_WS=1 .. && ninja install)
+	mkdir -p build && (cd build ; cmake -GNinja -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_BUILD_TYPE=Debug -DUSE_TLS=1 -DUSE_WS=1 .. && ninja)
 
 ws_unity:
-	mkdir -p build && (cd build ; cmake -GNinja -DCMAKE_UNITY_BUILD=ON -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_BUILD_TYPE=Debug -DUSE_TLS=1 -DUSE_WS=1 .. && ninja install)
+	mkdir -p build && (cd build ; cmake -GNinja -DCMAKE_UNITY_BUILD=ON -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_BUILD_TYPE=Debug -DUSE_TLS=1 -DUSE_WS=1 .. && ninja)
 
 ws_install:
 	mkdir -p build && (cd build ; cmake -GNinja -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_BUILD_TYPE=MinSizeRel -DUSE_TLS=1 -DUSE_WS=1 .. -DUSE_TEST=0 && ninja install)
@@ -54,13 +54,13 @@ ws_openssl_install:
 	mkdir -p build && (cd build ; cmake -GNinja -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_BUILD_TYPE=Debug -DUSE_TLS=1 -DUSE_WS=1 -DUSE_OPEN_SSL=1 .. ; ninja install)
 
 ws_mbedtls:
-	mkdir -p build && (cd build ; cmake -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_BUILD_TYPE=Debug -DUSE_TLS=1 -DUSE_WS=1 -DUSE_MBED_TLS=1 .. ; make -j 4)
+	mkdir -p build && (cd build ; cmake -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_BUILD_TYPE=Debug -DUSE_TLS=1 -DUSE_WS=1 -DUSE_MBED_TLS=1 .. ; ninja)
 
 ws_no_ssl:
-	mkdir -p build && (cd build ; cmake -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_BUILD_TYPE=Debug -DUSE_WS=1 .. ; make -j 4)
+	mkdir -p build && (cd build ; cmake -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_BUILD_TYPE=Debug -DUSE_WS=1 .. ; ninja)
 
 ws_no_python:
-	mkdir -p build && (cd build ; cmake -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_BUILD_TYPE=MinSizeRel -DUSE_TLS=1 -DUSE_WS=1 .. ; make -j4 install)
+	mkdir -p build && (cd build ; cmake -DCMAKE_INSTALL_MESSAGE=LAZY -DCMAKE_BUILD_TYPE=MinSizeRel -DUSE_TLS=1 -DUSE_WS=1 .. ; ninja install)
 
 uninstall:
 	xargs rm -fv < build/install_manifest.txt

test/IXHttpServerTest.cpp

@@ -60,6 +60,7 @@ TEST_CASE("http server", "[httpd]")
         REQUIRE(response->errorCode == HttpErrorCode::Ok);
         REQUIRE(response->statusCode == 200);
         REQUIRE(response->headers["Accept-Encoding"] == "gzip");
+        REQUIRE(response->headers["Content-Encoding"] == "gzip");
 
         server.stop();
     }

test/IXUrlParserTest.cpp

@@ -84,6 +84,40 @@ namespace ix
             REQUIRE(port == 443); // default port for wss
         }
 
+        SECTION("wss://google.com/?arg=value")
+        {
+            std::string url = "wss://google.com/?arg=value&arg2=value2";
+            std::string protocol, host, path, query;
+            int port;
+            bool res;
+
+            res = UrlParser::parse(url, protocol, host, path, query, port);
+
+            REQUIRE(res);
+            REQUIRE(protocol == "wss");
+            REQUIRE(host == "google.com");
+            REQUIRE(path == "/?arg=value&arg2=value2");
+            REQUIRE(query == "arg=value&arg2=value2");
+            REQUIRE(port == 443); // default port for wss
+        }
+
+        SECTION("wss://google.com?arg=value")
+        {
+            std::string url = "wss://google.com?arg=value&arg2=value2";
+            std::string protocol, host, path, query;
+            int port;
+            bool res;
+
+            res = UrlParser::parse(url, protocol, host, path, query, port);
+
+            REQUIRE(res);
+            REQUIRE(protocol == "wss");
+            REQUIRE(host == "google.com");
+            REQUIRE(path == "/?arg=value&arg2=value2");
+            REQUIRE(query == "arg=value&arg2=value2");
+            REQUIRE(port == 443); // default port for wss
+        }
+
         SECTION("real test")
         {
             std::string url =