websocket server: closed connection threads are joined properly

less buggy server connection per thread system
use threads instead of std::async, need to cleanup threads
2019-04-17 16:23:24 -07:00 · 2019-04-16 22:14:30 -07:00 · 2019-04-16 18:21:52 -07:00 · 2019-04-16 09:55:12 -07:00 · 2019-04-16 08:58:34 -07:00 · 2019-04-16 08:51:57 -07:00
72 changed files with 2115 additions and 9675 deletions
@@ -37,7 +37,6 @@ set( IXWEBSOCKET_SOURCES
    ixwebsocket/IXHttpClient.cpp
    ixwebsocket/IXUrlParser.cpp
    ixwebsocket/IXSelectInterrupt.cpp
-    ixwebsocket/IXSelectInterruptPipe.cpp
    ixwebsocket/IXSelectInterruptFactory.cpp
    ixwebsocket/IXConnectionState.cpp
 )
@@ -65,11 +64,16 @@ set( IXWEBSOCKET_HEADERS
    ixwebsocket/IXHttpClient.h
    ixwebsocket/IXUrlParser.h
    ixwebsocket/IXSelectInterrupt.h
-    ixwebsocket/IXSelectInterruptPipe.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)
@@ -81,6 +85,7 @@ else()
    list( APPEND IXWEBSOCKET_HEADERS ixwebsocket/IXSelectInterruptEventFd.h)
 endif()

+set(USE_OPEN_SSL FALSE)
 if (USE_TLS)
    add_definitions(-DIXWEBSOCKET_USE_TLS)

@@ -91,6 +96,7 @@ 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()
@@ -101,14 +107,16 @@ add_library( ixwebsocket STATIC
    ${IXWEBSOCKET_HEADERS}
 )

-# gcc/Linux needs -pthread
-find_package(Threads)
+if (APPLE AND USE_TLS)
+  target_link_libraries(ixwebsocket "-framework foundation" "-framework security")
+endif()

-if(UNIX AND NOT APPLE)
+if(USE_OPEN_SSL)
  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)
@@ -123,16 +131,21 @@ 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 ${OPENSSL_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT})
+    z ${CMAKE_THREAD_LIBS_INIT})
 endif()

 set( IXWEBSOCKET_INCLUDE_DIRS
    .
-    ../../shared/OpenSSL/include)
+)
+
 target_include_directories( ixwebsocket PUBLIC ${IXWEBSOCKET_INCLUDE_DIRS} )

-add_subdirectory(ws)
-add_subdirectory(third_party/cpp_redis)
+if (NOT WIN32)
+    add_subdirectory(ws)
+endif()
@@ -1 +1 @@
-1.3.2
+1.4.0
@@ -1 +0,0 @@
-Dockerfile.dev
@@ -0,0 +1,47 @@
+# 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"]
@@ -1,31 +0,0 @@
-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
-RUN apt-get -y install curl
-RUN apt-get -y install python
-RUN apt-get -y install netcat
-
-# debian strech cmake is too old for building with Docker
-COPY makefile .
-RUN ["make", "install_cmake_for_linux"]
-
-COPY . .
-
-ARG CMAKE_BIN_PATH=/tmp/cmake/cmake-3.14.0-rc4-Linux-x86_64/bin
-ENV PATH="${CMAKE_BIN_PATH}:${PATH}"
-
-# RUN ["make"]
-
-EXPOSE 8765
-CMD ["/ws/ws", "transfer", "--port", "8765", "--host", "0.0.0.0"]
@@ -1,30 +0,0 @@
-FROM debian:buster
-
-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 libz-dev
-RUN apt-get -y install make
-
-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 adduser app 
-
-COPY . .
-
-ARG CMAKE_BIN_PATH=/tmp/cmake/cmake-3.14.0-Linux-x86_64/bin
-ENV PATH="${CMAKE_BIN_PATH}:${PATH}"
-
-RUN ["make"]
-
-# Now run in usermode
-USER app
-
-EXPOSE 8765
-CMD ["bash"]
@@ -1,2 +0,0 @@
-all:
-	(cd .. ; make docker && make docker_push)
@@ -1,18 +0,0 @@
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-containerLayout:'<div class="remark-notes-area">\n  <div class="remark-top-area">\n    <div class="remark-toolbar">\n      <a class="remark-toolbar-link" href="#increase">+</a>\n      <a class="remark-toolbar-link" href="#decrease">-</a>\n      <span class="remark-toolbar-timer"></span>\n    </div>\n  </div>\n  <div class="remark-bottom-area">\n    <div class="remark-notes-current-area">\n      <div class="remark-toggle">Notes for current slide</div>\n      <div class="remark-notes"></div>\n    </div>\n    <div class="remark-notes-preview-area">\n      <div class="remark-toggle">Notes for next slide</div>\n      <div class="remark-notes-preview"></div>\n    </div>\n  </div>\n</div>\n<div class="remark-slides-area"></div>\n<div class="remark-preview-area"></div>\n<div class="remark-backdrop"></div>\n<div class="remark-pause">\n  <div class="remark-pause-lozenge">\n    <span>Paused</span>\n  </div>\n</div>\n<div class="remark-help">\n  <div class="remark-help-content">\n    <h1>Help</h1>\n    <p><b>Keyboard shortcuts</b></p>\n    <table class="light-keys">\n      <tr>\n        <td>\n          <span class="key"><b>&uarr;</b></span>,\n          <span class="key"><b>&larr;</b></span>,\n          <span class="key">Pg Up</span>,\n          <span class="key">k</span>\n        </td>\n        <td>Go to previous slide</td>\n      </tr>\n      <tr>\n        <td>\n          <span class="key"><b>&darr;</b></span>,\n          <span class="key"><b>&rarr;</b></span>,\n          <span class="key">Pg Dn</span>,\n          <span class="key">Space</span>,\n          <span class="key">j</span>\n        </td>\n        <td>Go to next slide</td>\n      </tr>\n      <tr>\n        <td>\n          <span class="key">Home</span>\n        </td>\n        <td>Go to first slide</td>\n      </tr>\n      <tr>\n        <td>\n          <span class="key">End</span>\n        </td>\n        <td>Go to last slide</td>\n      </tr>\n      <tr>\n        <td>\n          Number + <span class="key">Return</span>\n        </td>\n        <td>Go to specific slide</td>\n      </tr>\n      <tr>\n        <td>\n          <span class="key">b</span>&nbsp;/\n          <span class="key">m</span>&nbsp;/\n          <span class="key">f</span>\n        </td>\n        <td>Toggle blackout / mirrored / fullscreen mode</td>\n      </tr>\n      <tr>\n        <td>\n          <span class="key">c</span>\n        </td>\n        <td>Clone slideshow</td>\n      </tr>\n      <tr>\n        <td>\n          <span class="key">p</span>\n        </td>\n        <td>Toggle presenter mode</td>\n      </tr>\n      <tr>\n        <td>\n          <span class="key">t</span>\n        </td>\n        <td>Restart the presentation timer</td>\n      </tr>\n      <tr>\n        <td>\n          <span class="key">?</span>,\n          <span class="key">h</span>\n        </td>\n        <td>Toggle this help</td>\n      </tr>\n    </table>\n  </div>\n  <div class="content dismiss">\n    <table class="light-keys">\n      <tr>\n        <td>\n          <span class="key">Esc</span>\n        </td>\n        <td>Back to slideshow</td>\n      </tr>\n    </table>\n  </div>\n</div>\n'}},{}],23:[function(e,t,a){function r(e,t){var a=this;a.events=e,a.slideshow=t,a.ratio=s(t),a.dimensions=n(a.ratio),a.events.on("propertiesChanged",function(e){e.hasOwnProperty("ratio")&&(a.ratio=s(t),a.dimensions=n(a.ratio))})}function s(e){var t,a=e.getRatio().split(":");return t={width:parseInt(a[0],10),height:parseInt(a[1],10)},t.ratio=t.width/t.height,t}function n(e){return{width:Math.floor(i/o*e.ratio),height:l}}var i=908,l=681,o=i/l;t.exports=r,r.prototype.scaleToFit=function(e,t){var a,r,s,n,i,l=this,o=t.clientHeight,c=t.clientWidth,d=l.ratio,m=l.dimensions;a=c/d.width>o/d.height?o/m.height:c/m.width,r=m.width*a,s=m.height*a,n=(c-r)/2,i=(o-s)/2,e.style["-webkit-transform"]="scale("+a+")",e.style.MozTransform="scale("+a+")",e.style.left=Math.max(n,0)+"px",e.style.top=Math.max(i,0)+"px"}},{}],24:[function(e,t,a){a.addClass=function(e,t){e.className=a.getClasses(e).concat([t]).join(" ")},a.removeClass=function(e,t){e.className=a.getClasses(e).filter(function(e){return e!==t}).join(" ")},a.toggleClass=function(e,t){var r=a.getClasses(e),s=r.indexOf(t);s!==-1?r.splice(s,1):r.push(t),e.className=r.join(" ")},a.getClasses=function(e){return e.className.split(" ").filter(function(e){return""!==e})},a.hasClass=function(e,t){return a.getClasses(e).indexOf(t)!==-1},a.getPrefixedProperty=function(e,t){var a=t[0].toUpperCase()+t.slice(1);return e[t]||e["moz"+a]||e["webkit"+a]}},{}],25:[function(e,t,a){function r(e,t,a){var r=this;r.events=e,r.element=t,r.slideViewsAccessor=a,r.configureElements(),e.on("showSlide",function(e){r.showSlide(e)})}e("../converter");t.exports=r,r.prototype.showSlide=function(e){var t=this,a=t.slideViewsAccessor(),r=a[e],s=a[e+1];t.notesElement.innerHTML=r.notesElement.innerHTML,s?t.notesPreviewElement.innerHTML=s.notesElement.innerHTML:t.notesPreviewElement.innerHTML=""},r.prototype.configureElements=function(){var 
Line truncated
@@ -10,7 +10,7 @@ namespace ix
 {
    std::atomic<uint64_t> ConnectionState::_globalId(0);

-    ConnectionState::ConnectionState()
+    ConnectionState::ConnectionState() : _terminated(false)
    {
        computeId();
    }
@@ -29,5 +29,15 @@ namespace ix
    {
        return std::make_shared<ConnectionState>();
    }
+
+    bool ConnectionState::isTerminated() const
+    {
+        return _terminated;
+    }
+
+    bool ConnectionState::setTerminated()
+    {
+        _terminated = true;
+    }
 }

@@ -21,9 +21,13 @@ namespace ix
        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;
@@ -21,6 +21,10 @@
 #include <algorithm>
 #include <iostream>

+#ifdef min
+#undef min
+#endif
+
 namespace ix
 {
    const int Socket::kDefaultPollNoTimeout = -1; // No poll timeout by default
@@ -6,12 +6,20 @@

 #include "IXSocketFactory.h"

-#if defined(__APPLE__) or defined(__linux__)
+#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
@@ -31,6 +39,8 @@ namespace ix
 #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
@@ -8,6 +8,7 @@
 #pragma once

 #include <memory>
+#include <string>

 namespace ix
 {
@@ -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
@@ -75,7 +75,7 @@ namespace ix
                                 int port,
                                 std::string& errMsg)
    {
-        return Socket::connect(host, port, errMsg);
+        return Socket::connect(host, port, errMsg, nullptr);
    }


@@ -89,17 +89,17 @@ namespace ix
        Socket::close();
    }

-    int SocketSChannel::send(char* buf, size_t nbyte)
+    ssize_t SocketSChannel::send(char* buf, size_t nbyte)
    {
        return Socket::send(buf, nbyte);
    }

-    int SocketSChannel::send(const std::string& buffer)
+    ssize_t SocketSChannel::send(const std::string& buffer)
    {
        return Socket::send(buffer);
    }

-    int SocketSChannel::recv(void* buf, size_t nbyte)
+    ssize_t SocketSChannel::recv(void* buf, size_t nbyte)
    {
        return Socket::recv(buf, nbyte);
    }
@@ -24,9 +24,9 @@ namespace ix
        // The important override
        virtual void secureSocket() 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;
+        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;

    private:
    };
@@ -136,6 +136,9 @@ namespace ix

    void SocketServer::stop()
    {
+        closeTerminatedThreads();
+        assert(_connectionsThreads.empty());
+
        if (!_thread.joinable()) return; // nothing to do

        _stop = true;
@@ -152,18 +155,44 @@ namespace ix
        _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;
@@ -228,14 +257,12 @@ namespace ix
            }

            // Launch the handleConnection work asynchronously in its own thread.
-            //
-            // 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,
-                           connectionState);
+            _connectionsThreads.push_back(std::make_pair(
+                    connectionState,
+                    std::thread(&SocketServer::handleConnection,
+                                this,
+                                clientFd,
+                                connectionState)));
        }
    }
 }
@@ -12,6 +12,7 @@
 #include <string>
 #include <set>
 #include <thread>
+#include <list>
 #include <mutex>
 #include <functional>
 #include <memory>
@@ -24,6 +25,10 @@ namespace ix
    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,
@@ -63,6 +68,8 @@ namespace ix
        std::atomic<bool> _stop;
        std::thread _thread;

+        ConnectionThreads _connectionsThreads;
+
        std::condition_variable _conditionVariable;
        std::mutex _conditionVariableMutex;

@@ -74,5 +81,7 @@ namespace ix
        virtual void handleConnection(int fd,
                                      std::shared_ptr<ConnectionState> connectionState) = 0;
        virtual size_t getConnectedClientsCount() = 0;
+
+        void closeTerminatedThreads();
    };
 }
@@ -6,12 +6,28 @@

 #include "IXWebSocketHttpHeaders.h"
 #include "IXSocket.h"
-
-#include <string>
-#include <unordered_map>
+#include <algorithm>
+#include <locale>

 namespace ix
 {
+    bool CaseInsensitiveLess::NocaseCompare::operator()(const unsigned char & c1, const unsigned char & c2) const
+    {
+#ifdef _WIN32
+        return std::tolower(c1, std::locale()) < std::tolower(c2, std::locale());
+#else
+        return std::tolower(c1) < std::tolower(c2);
+#endif
+    }
+
+    bool CaseInsensitiveLess::operator()(const std::string & s1, const std::string & s2) const
+    {
+        return std::lexicographical_compare
+                (s1.begin(), s1.end(),   // source range
+                 s2.begin(), s2.end(),   // dest range
+                 NocaseCompare());       // comparison
+    }
+
    std::pair<bool, WebSocketHttpHeaders> parseHttpHeaders(
        std::shared_ptr<Socket> socket,
        const CancellationRequest& isCancellationRequested)
@@ -11,7 +11,6 @@
 #include <string>
 #include <map>
 #include <memory>
-#include <algorithm>

 namespace ix
 {
@@ -22,19 +21,10 @@ namespace ix
        // Case Insensitive compare_less binary function
        struct NocaseCompare
        {
-            bool operator() (const unsigned char& c1, const unsigned char& c2) const
-            {
-                return std::tolower(c1) < std::tolower(c2);
-            }
+            bool operator() (const unsigned char& c1, const unsigned char& c2) const;
        };

-        bool operator() (const std::string & s1, const std::string & s2) const
-        {
-            return std::lexicographical_compare
-                (s1.begin(), s1.end(),   // source range
-                 s2.begin(), s2.end(),   // dest range
-                 NocaseCompare());  // comparison
-        }
+        bool operator() (const std::string & s1, const std::string & s2) const;
    };

    using WebSocketHttpHeaders = std::map<std::string, std::string, CaseInsensitiveLess>;
@@ -91,6 +91,7 @@ namespace ix
        }

        logInfo("WebSocketServer::handleConnection() done");
+        connectionState->setTerminated();
    }

    std::set<std::shared_ptr<WebSocket>> WebSocketServer::getClients()
@@ -474,14 +474,8 @@ namespace ix
                std::string reason(_rxbuf.begin()+ws.header_size + 2,
                                   _rxbuf.begin()+ws.header_size + 2 + (size_t) ws.N);

-                {
-                    std::lock_guard<std::mutex> lock(_closeDataMutex);
-                    _closeCode = code;
-                    _closeReason = reason;
-                    _closeWireSize = _rxbuf.size();
-                }

-                close();
+                close(code, reason, _rxbuf.size());
            }
            else
            {
@@ -644,7 +638,7 @@ namespace ix
                                          std::string::const_iterator message_end,
                                          bool compress)
    {
-        auto message_size = message_end - message_begin;
+        uint64_t message_size = static_cast<uint64_t>(message_end - message_begin);

        unsigned x = getRandomUnsigned();
        uint8_t masking_key[4] = {};
@@ -781,7 +775,7 @@ namespace ix
        _lastSendTimePoint = std::chrono::steady_clock::now();
    }

-    void WebSocketTransport::close()
+    void WebSocketTransport::close(uint16_t code, const std::string& reason, size_t closeWireSize)
    {
        _requestInitCancellation = true;

@@ -789,21 +783,22 @@ namespace ix

        // See list of close events here:
        // https://developer.mozilla.org/en-US/docs/Web/API/CloseEvent
-        // We use 1000: normal closure.
-        //
-        // >>> struct.pack('!H', 1000)
-        // b'\x03\xe8'
-        //
-        const std::string normalClosure = std::string("\x03\xe8");
+        const std::string closure{(char)(code >> 8), (char)(code & 0xff)};
+
        bool compress = false;
-        sendData(wsheader_type::CLOSE, normalClosure, compress);
+        sendData(wsheader_type::CLOSE, closure, compress);
        setReadyState(CLOSING);

        _socket->wakeUpFromPoll(Socket::kCloseRequest);
        _socket->close();

-        _closeCode = 1000;
-        _closeReason = "Normal Closure";
+        {
+            std::lock_guard<std::mutex> lock(_closeDataMutex);
+            _closeCode = code;
+            _closeReason = reason;
+            _closeWireSize = closeWireSize;
+        }
+        
        setReadyState(CLOSED);
    }

@@ -81,7 +81,11 @@ namespace ix
        WebSocketSendInfo sendText(const std::string& message,
                                   const OnProgressCallback& onProgressCallback);
        WebSocketSendInfo sendPing(const std::string& message);
-        void close();
+
+        void close(uint16_t code = 1000,
+                   const std::string& reason = "Normal closure",
+                   size_t closeWireSize = 0);
+
        ReadyStateValues getReadyState() const;
        void setReadyState(ReadyStateValues readyStateValue);
        void setOnCloseCallback(const OnCloseCallback& onCloseCallback);
@@ -48,7 +48,7 @@ test_server:
 # env TEST=Websocket_chat make test
 # env TEST=heartbeat make test
 test:
-	python test/run.py
+	(cd test ; python2.7 run.py)

 ws_test: all
 	(cd ws ; bash test_ws.sh)
@@ -73,7 +73,7 @@ TEST_CASE("socket", "[socket]")
        testSocket(host, port, request, socket, expectedStatus, timeoutSecs);
    }

-#if defined(__APPLE__) or defined(__linux__)
+#if defined(__APPLE__) || defined(__linux__)
    SECTION("Connect to google HTTPS server. Send GET request without header. Should return 200")
    {
        std::string errMsg;
@@ -109,7 +109,7 @@ namespace ix
        }

        struct sockaddr_in sa; // server address information
-        unsigned int len;
+        socklen_t len;
        if (getsockname(sockfd, (struct sockaddr *) &sa, &len) < 0)
        {
            log("Cannot compute a free port. getsockname error.");
@@ -1,9 +1,31 @@
-import os
-import platform
-import shutil
+#!/usr/bin/env python2.7
+'''
+'''

-import subprocess
+from __future__ import print_function
+
+import os
+import sys
+import platform
+import argparse
+import multiprocessing
+import tempfile
+import time
+import datetime
 import threading
+import subprocess
+import re
+import xml.etree.ElementTree as ET
+from xml.dom import minidom
+
+hasClick = True
+try:
+    import click
+except ImportError:
+    hasClick = False
+
+
+DEFAULT_EXE = 'ixwebsocket_unittest'


 class Command(object):
@@ -16,12 +38,16 @@ class Command(object):
        self.cmd = cmd
        self.process = None

-    def run_command(self, capture = False):
+    def run_command(self):
        self.process = subprocess.Popen(self.cmd, shell=True)
        self.process.communicate()

-    def run(self, timeout = 5 * 60):
+    def run(self, timeout=None):
        '''5 minutes default timeout'''
+        
+        if timeout is None:
+            timeout = 5 * 60
+
        thread = threading.Thread(target=self.run_command, args=())
        thread.start()
        thread.join(timeout)
@@ -35,85 +61,424 @@ class Command(object):
            return True, self.process.returncode


-osName = platform.system()
-print('os name = {}'.format(osName))
+def runCommand(cmd, assertOnFailure=True, timeout=None):
+    '''Small wrapper to run a command and make sure it succeed'''

-root = os.path.dirname(os.path.realpath(__file__))
-buildDir = os.path.join(root, 'build', osName)
+    if timeout is None:
+        timeout = 30 * 60 # 30 minute default timeout

-if not os.path.exists(buildDir):
-    os.makedirs(buildDir)
+    print('\nRunning', cmd)
+    command = Command(cmd)
+    timedout, ret = command.run(timeout)

-os.chdir(buildDir)
+    if timedout:
+        print('Unittest timed out')

-if osName == 'Windows':
-    generator = '-G"NMake Makefiles"'
-    make = 'nmake'
-    testBinary ='ixwebsocket_unittest.exe'
-else:
-    generator = ''
-    make = 'make -j6'
-    testBinary ='./ixwebsocket_unittest'
+    msg = 'cmd {} failed with error code {}'.format(cmd, ret)
+    if ret != 0:
+        print(msg)
+        if assertOnFailure:
+            assert False

-sanitizersFlags = {
-    'asan': '-DSANITIZE_ADDRESS=On',
-    'ubsan': '-DSANITIZE_UNDEFINED=On',
-    'tsan': '-DSANITIZE_THREAD=On',
-    'none': ''
-}
-sanitizer = 'tsan'
-if osName == 'Linux':
-    sanitizer = 'none'

-sanitizerFlags = sanitizersFlags[sanitizer]
+def runCMake(sanitizer, buildDir):
+    '''Generate a makefile from CMake.
+    We do an out of dir build, so that cleaning up is easy
+    (remove build sub-folder).
+    '''

-# if osName == 'Windows':
-#     os.environ['CC'] = 'clang-cl'
-#     os.environ['CXX'] = 'clang-cl'
+    # CMake installed via Self Service ends up here.
+    cmake_executable = '/Applications/CMake.app/Contents/bin/cmake'

-cmakeCmd = 'cmake -DCMAKE_BUILD_TYPE=Debug {} {} ../..'.format(generator, sanitizerFlags)
-print(cmakeCmd)
-ret = os.system(cmakeCmd)
-assert ret == 0, 'CMake failed, exiting'
+    if not os.path.exists(cmake_executable):
+        cmake_executable = 'cmake'

-ret = os.system(make)
-assert ret == 0, 'Make failed, exiting'
+    sanitizersFlags = {
+        'asan': '-DSANITIZE_ADDRESS=On',
+        'ubsan': '-DSANITIZE_UNDEFINED=On',
+        'tsan': '-DSANITIZE_THREAD=On',
+        'none': ''
+    }
+    sanitizerFlag = sanitizersFlags[sanitizer]

-def findFiles(prefix):
-    '''Find all files under a given directory'''
+    # CMake installed via Self Service ends up here.
+    cmakeExecutable = '/Applications/CMake.app/Contents/bin/cmake'
+    if not os.path.exists(cmakeExecutable):
+        cmakeExecutable = 'cmake'

-    paths = []
+    fmt = '''
+{cmakeExecutable} -H. \
+    {sanitizerFlag} \
+    -B{buildDir} \
+    -DCMAKE_BUILD_TYPE=Debug \
+    -DCMAKE_EXPORT_COMPILE_COMMANDS=ON \
+'''
+    cmakeCmd = fmt.format(**locals())
+    runCommand(cmakeCmd)

-    for root, _, files in os.walk(prefix):
-        for path in files:
-            fullPath = os.path.join(root, path)

-            if os.path.islink(fullPath):
-                continue
+def runTest(args, buildDir, xmlOutput, testRunName):
+    '''Execute the unittest.
+    '''
+    if args is None:
+        args = ''

-            paths.append(fullPath)
+    fmt = '{buildDir}/{DEFAULT_EXE} -o {xmlOutput} -n "{testRunName}" -r junit "{args}"'
+    testCommand = fmt.format(**locals())
+    runCommand(testCommand,
+               assertOnFailure=False)

-    return paths

-#for path in findFiles('.'):
-#    print(path)
+def validateTestSuite(xmlOutput):
+    '''
+    Parse the output XML file to validate that all tests passed.

-# We need to copy the zlib DLL in the current work directory
-shutil.copy(os.path.join(
-    '..',
-    '..',
-    '..',
-    'third_party',
-    'ZLIB-Windows',
-    'zlib-1.2.11_deploy_v140',
-    'release_dynamic',
-    'x64',
-    'bin',
-    'zlib.dll'), '.')
+    Assume that the XML file contains only one testsuite.
+    (which is true when generate by catch2)
+    '''
+    tree = ET.parse(xmlOutput)
+    root = tree.getroot()
+    testSuite = root[0]
+    testSuiteAttributes = testSuite.attrib

-# lldb = "lldb --batch -o 'run' -k 'thread backtrace all' -k 'quit 1'"
-lldb = ""  # Disabled for now
-testCommand = '{} {} {}'.format(lldb, testBinary, os.getenv('TEST', ''))
-command = Command(testCommand)
-timedout, ret = command.run()
-assert ret == 0, 'Test command failed'
+    tests = testSuiteAttributes['tests']
+
+    success = True
+
+    for testcase in testSuite:
+        if testcase.tag != 'testcase':
+            continue
+
+        testName = testcase.attrib['name']
+        systemOutput = None
+
+        for child in testcase:
+            if child.tag == 'system-out':
+                systemOutput = child.text
+
+            if child.tag == 'failure':
+                success = False
+
+                print("Testcase '{}' failed".format(testName))
+                print(' ', systemOutput)
+
+    return success, tests
+
+
+def log(msg, color):
+    if hasClick:
+        click.secho(msg, fg=color)
+    else:
+        print(msg)
+
+
+def isSuccessFullRun(output):
+    '''When being run from lldb, we cannot capture the exit code 
+    so we have to parse the output which is produced in a 
+    consistent way. Whenever we'll be on a recent enough version of lldb we 
+    won't have to do this.
+    '''
+    pid = None
+    matchingPids = False
+    exitCode = -1
+
+    # 'Process 279 exited with status = 1 (0x00000001) ',
+    exitPattern = re.compile('^Process (?P<pid>[0-9]+) exited with status = (?P<exitCode>[0-9]+)')
+
+    # "Process 99232 launched: '/Users/bse...
+    launchedPattern = re.compile('^Process (?P<pid>[0-9]+) launched: ')
+
+    for line in output:
+        match = exitPattern.match(line)
+        if match:
+            exitCode = int(match.group('exitCode'))
+            pid = match.group('pid')
+
+        match = launchedPattern.match(line)
+        if match:
+            matchingPids = (pid == match.group('pid'))
+
+    return exitCode == 0 and matchingPids
+
+
+def testLLDBOutput():
+    failedOutputWithCrashLines = [
+        '    frame #15: 0x00007fff73f4d305 libsystem_pthread.dylib`_pthread_body + 126',
+        '    frame #16: 0x00007fff73f5026f libsystem_pthread.dylib`_pthread_start + 70',
+        '    frame #17: 0x00007fff73f4c415 libsystem_pthread.dylib`thread_start + 13',
+        '(lldb) quit 1'
+    ]
+
+    failedOutputWithFailedUnittest = [
+        '===============================================================================', 
+        'test cases:  1 |  0 passed | 1 failed', 'assertions: 15 | 14 passed | 1 failed', 
+        '', 
+        'Process 279 exited with status = 1 (0x00000001) ',
+        '',
+        "Process 279 launched: '/Users/bsergeant/src/foss/ixwebsocket/test/build/Darwin/ixwebsocket_unittest' (x86_64)"
+    ]
+
+    successLines = [
+        '...',
+        '...',
+        'All tests passed (16 assertions in 1 test case)',
+        '',
+        'Process 99232 exited with status = 0 (0x00000000) ',
+        '',
+        "Process 99232 launched: '/Users/bsergeant/src/foss/ixwebsocket/test/build/Darwin/ixwebsocket_unittest' (x86_64)"
+    ]
+
+    assert not isSuccessFullRun(failedOutputWithCrashLines)
+    assert not isSuccessFullRun(failedOutputWithFailedUnittest)
+    assert isSuccessFullRun(successLines)
+
+
+def executeJob(job):
+    '''Execute a unittest and capture info about it (runtime, success, etc...)'''
+
+    start = time.time()
+
+    sys.stderr.write('.')
+
+    # 2 minutes of timeout for a single test
+    timeout = 2 * 60
+    command = Command(job['cmd'])
+    timedout, ret = command.run(timeout)
+
+    job['exit_code'] = ret
+    job['success'] = ret == 0
+    job['runtime'] = time.time() - start
+
+    # Record unittest console output
+    job['output'] = ''
+    path = job['output_path']
+
+    if os.path.exists(path):
+        with open(path) as f:
+            output = f.read()
+            job['output'] = output
+
+        outputLines = output.splitlines()
+
+        if job['use_lldb']:
+            job['success'] = isSuccessFullRun(outputLines)
+
+        # Cleanup tmp file now that its content was read
+        os.unlink(path)
+
+    return job
+
+
+def executeJobs(jobs):
+    '''Execute a list of job concurrently on multiple CPU/cores'''
+
+    poolSize = multiprocessing.cpu_count()
+
+    pool = multiprocessing.Pool(poolSize)
+    results = pool.map(executeJob, jobs)
+    pool.close()
+    pool.join()
+
+    return results
+
+
+def computeAllTestNames(buildDir):
+    '''Compute all test case names, by executing the unittest in a custom mode'''
+
+    executable = os.path.join(buildDir, DEFAULT_EXE)
+    cmd = '"{}" --list-test-names-only'.format(executable)
+    names = os.popen(cmd).read().splitlines()
+    names.sort()  # Sort test names for execution determinism
+    return names
+
+
+def prettyPrintXML(root):
+    '''Pretty print an XML file. Default writer write it on a single line
+    which makes it hard for human to inspect.'''
+
+    serializedXml = ET.tostring(root, encoding='utf-8')
+    reparsed = minidom.parseString(serializedXml)
+    prettyPrinted = reparsed.toprettyxml(indent="  ")
+    return prettyPrinted
+
+
+def generateXmlOutput(results, xmlOutput, testRunName, runTime):
+    '''Generate a junit compatible XML file
+    
+    We prefer doing this ourself instead of letting Catch2 do it.
+    When the test is crashing (as has happened on Jenkins), an invalid file 
+    with no trailer can be created which trigger an XML reading error in validateTestSuite.
+
+    Something like that:
+    ```
+    <testsuite>
+      <foo>
+    ```
+    '''
+
+    root = ET.Element('testsuites')
+    testSuite = ET.Element('testsuite', {
+        'name': testRunName,
+        'tests': str(len(results)),
+        'failures': str(sum(1 for result in results if not result['success'])),
+        'time': str(runTime),
+        'timestamp': datetime.datetime.utcnow().isoformat(),
+    })
+    root.append(testSuite)
+
+    for result in results:
+        testCase = ET.Element('testcase', {
+            'name': result['name'],
+            'time': str(result['runtime'])
+        })
+
+        systemOut = ET.Element('system-out')
+        systemOut.text = result['output'].decode('utf-8')
+        testCase.append(systemOut)
+
+        if not result['success']:
+            failure = ET.Element('failure')
+            testCase.append(failure)
+
+        testSuite.append(testCase)
+
+    with open(xmlOutput, 'w') as f:
+        content = prettyPrintXML(root)
+        f.write(content.encode('utf-8'))
+
+
+def run(testName, buildDir, sanitizer, xmlOutput, testRunName, buildOnly, useLLDB):
+    '''Main driver. Run cmake, compiles, execute and validate the testsuite.'''
+
+    runCMake(sanitizer, buildDir)
+    runCommand('make -C {} -j8'.format(buildDir))
+
+    if buildOnly:
+        return
+
+    # A specific test case can be provided on the command line
+    if testName:
+        testNames = [testName]
+    else:
+        # Default case
+        testNames = computeAllTestNames(buildDir)
+
+    # This should be empty. It is useful to have a blacklist during transitions
+    # We could add something for asan as well.
+    blackLists = {
+        'ubsan': []
+    }
+    blackList = blackLists.get(sanitizer, [])
+
+    # Run through LLDB to capture crashes
+    lldb = ''
+    if useLLDB:
+        lldb = "lldb --batch -o 'run' -k 'thread backtrace all' -k 'quit 1'"
+
+    # Jobs is a list of python dicts
+    jobs = []
+
+    for testName in testNames:
+        outputPath = tempfile.mktemp(suffix=testName + '.log')
+
+        if testName in blackList:
+            log('Skipping blacklisted test {}'.format(testName), 'yellow')
+            continue
+
+        # testName can contains spaces, so we enclose them in double quotes
+        executable = os.path.join(buildDir, DEFAULT_EXE)
+
+        cmd = '{} "{}" "{}" >& "{}"'.format(lldb, executable, testName, outputPath)
+
+        jobs.append({
+            'name': testName,
+            'cmd': cmd,
+            'output_path': outputPath,
+            'use_lldb': useLLDB
+        })
+
+    start = time.time()
+    results = executeJobs(jobs)
+    runTime = time.time() - start
+    generateXmlOutput(results, xmlOutput, testRunName, runTime)
+
+    # Validate and report results
+    print('\nParsing junit test result file: {}'.format(xmlOutput))
+    log('## Results', 'blue')
+    success, tests = validateTestSuite(xmlOutput)
+
+    if success:
+        label = 'tests' if int(tests) > 1 else 'test'
+        msg = 'All test passed (#{} {})'.format(tests, label)
+        color = 'green'
+    else:
+        msg = 'unittest failed'
+        color = 'red'
+
+    log(msg, color)
+    log('Execution time: %.2fs' % (runTime), 'blue')
+    sys.exit(0 if success else 1)
+
+
+def main():
+    buildDir = 'build/' + platform.system()
+    if not os.path.exists(buildDir):
+        os.makedirs(buildDir)
+
+    defaultOutput = DEFAULT_EXE + '.xml'
+
+    parser = argparse.ArgumentParser(description='Build and Run the engine unittest')
+
+    sanitizers = ['tsan', 'asan', 'ubsan', 'none']
+
+    parser.add_argument('--sanitizer', choices=sanitizers,
+                        help='Run a clang sanitizer.')
+    parser.add_argument('--test', '-t', help='Test name.')
+    parser.add_argument('--list', '-l', action='store_true',
+                        help='Print test names and exit.')
+    parser.add_argument('--no_sanitizer', action='store_true',
+                        help='Do not execute a clang sanitizer.')
+    parser.add_argument('--validate', action='store_true',
+                        help='Validate XML output.')
+    parser.add_argument('--build_only', '-b', action='store_true',
+                        help='Stop after building. Do not run the unittest.')
+    parser.add_argument('--output', '-o', help='Output XML file.')
+    parser.add_argument('--lldb', action='store_true',
+                        help='Run the test through lldb.')
+    parser.add_argument('--run_name', '-n',
+                        help='Name of the test run.')
+
+    args = parser.parse_args()
+
+    # Default sanitizer is tsan
+    sanitizer = args.sanitizer
+    if args.sanitizer is None:
+        sanitizer = 'tsan'
+
+    defaultRunName = 'ixengine_{}_{}'.format(platform.system(), sanitizer)
+
+    xmlOutput = args.output or defaultOutput
+    testRunName = args.run_name or os.getenv('IXENGINE_TEST_RUN_NAME') or defaultRunName
+
+    if args.list:
+        # catch2 exit with a different error code when requesting the list of files
+        try:
+            runTest('--list-test-names-only', buildDir, xmlOutput, testRunName)
+        except AssertionError:
+            pass
+        return
+
+    if args.validate:
+        validateTestSuite(xmlOutput)
+        return
+
+    if platform.system() != 'Darwin' and args.lldb:
+        print('LLDB is only supported on Apple at this point')
+        args.lldb = False
+
+    return run(args.test, buildDir, sanitizer, xmlOutput, 
+               testRunName, args.build_only, args.lldb)
+
+
+if __name__ == '__main__':
+    main()
@@ -7,8 +7,6 @@
 #define CATCH_CONFIG_RUNNER
 #include "catch.hpp"

-#include <ixwebsocket/IXSocket.h>
-
 int main(int argc, char* argv[])
 {
    int result = Catch::Session().run(argc, argv);
@@ -0,0 +1,13 @@
+# Compiled Object files
+*.slo
+*.lo
+*.o
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
@@ -0,0 +1,18 @@
+cmake_minimum_required(VERSION 3.1)
+project(helloCLion)
+
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+
+include_directories(
+    src
+)
+
+add_library(statsdcppclient STATIC src/statsd_client.cpp)
+add_definitions("-fPIC")
+target_link_libraries(statsdcppclient pthread)
+
+add_executable(system_monitor demo/system_monitor.cpp)
+target_link_libraries(system_monitor statsdcppclient)
+
+add_executable(test_client demo/test_client.cpp)
+target_link_libraries(test_client statsdcppclient)
@@ -0,0 +1,27 @@
+Copyright (c) 2014, Rex
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+* Neither the name of the {organization} nor the names of its
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@@ -0,0 +1,34 @@
+# a client sdk for StatsD, written in C++
+
+## API
+See [header file](src/statsd_client.h) for more api detail.
+
+** Notice: this client is not thread-safe **
+
+## Demo
+### test\_client
+This simple demo shows how the use this client.
+
+### system\_monitor
+This is a daemon for monitoring a Linux system.
+It'll wake up every minute and monitor the following:
+
+* load
+* cpu
+* free memory
+* free swap (disabled)
+* received bytes
+* transmitted bytes
+* procs
+* uptime
+
+The stats sent to statsd will be in "host.MACAddress" namespace.
+
+Usage:
+
+    system_monitor statsd-host interface-to-monitor
+
+e.g.
+
+    `system_monitor 172.16.42.1 eth0`
+
@@ -0,0 +1,164 @@
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <unistd.h>
+#include <string.h>
+#include <netdb.h>
+#include <sys/sysinfo.h>
+
+#include <sys/ioctl.h>
+#include <netinet/in.h>
+#include <net/if.h>
+#include <string>
+#include <vector>
+
+#include "statsd_client.h"
+
+using namespace std;
+
+static int running = 1;
+
+void sigterm(int sig)
+{
+    running = 0;
+}
+
+string localhost() {
+    struct addrinfo hints, *info, *p;
+    string hostname(1024, '\0');
+    gethostname((char*)hostname.data(), hostname.capacity());
+
+    memset(&hints, 0, sizeof hints);
+    hints.ai_family = AF_UNSPEC; /*either IPV4 or IPV6*/
+    hints.ai_socktype = SOCK_STREAM;
+    hints.ai_flags = AI_CANONNAME;
+
+    if ( getaddrinfo(hostname.c_str(), "http", &hints, &info) == 0) {
+        for(p = info; p != NULL; p = p->ai_next) {
+            hostname = p->ai_canonname;
+        }
+        freeaddrinfo(info);
+    }
+
+    string::size_type pos = hostname.find(".");
+    while ( pos != string::npos )
+    {
+        hostname[pos] = '_';
+        pos = hostname.find(".", pos);
+    }
+    return hostname;
+}
+
+vector<string>& StringSplitTrim(const string& sData,
+        const string& sDelim, vector<string>& vItems)
+{
+    vItems.clear();
+
+    string::size_type bpos = 0;
+    string::size_type epos = 0;
+    string::size_type nlen = sDelim.size();
+
+    while(sData.substr(epos,nlen) == sDelim)
+    {
+        epos += nlen;
+    }
+    bpos = epos;
+
+    while ((epos=sData.find(sDelim, epos)) != string::npos)
+    {
+        vItems.push_back(sData.substr(bpos, epos-bpos));
+        epos += nlen;
+        while(sData.substr(epos,nlen) == sDelim)
+        {
+            epos += nlen;
+        }
+        bpos = epos;
+    }
+
+    if(bpos != sData.size())
+    {
+        vItems.push_back(sData.substr(bpos, sData.size()-bpos));
+    }
+    return vItems;
+}
+
+int main(int argc, char *argv[])
+{
+    FILE *net, *stat;
+    struct sysinfo si;
+    char line[256];
+    unsigned int user, nice, sys, idle, total, busy, old_total=0, old_busy=0;
+
+    if (argc != 3) {
+        printf( "Usage: %s host port\n"
+                "Eg:    %s 127.0.0.1 8125\n",
+                argv[0], argv[0]);
+        exit(1);
+    }
+
+    signal(SIGHUP, SIG_IGN);
+    signal(SIGPIPE, SIG_IGN);
+    signal(SIGCHLD, SIG_IGN); /* will save one syscall per sleep */
+    signal(SIGTERM, sigterm);
+
+    if ( (net = fopen("/proc/net/dev", "r")) == NULL) {
+        perror("fopen");
+        exit(-1);
+    }
+
+    if ( (stat = fopen("/proc/stat", "r")) == NULL) {
+        perror("fopen");
+        exit(-1);
+    }
+
+    string ns = string("host.") + localhost().c_str() + ".";
+    statsd::StatsdClient client(argv[1], atoi(argv[2]), ns);
+
+    daemon(0,0);
+    printf("running in background.\n");
+
+    while(running) {
+        rewind(net);
+        vector<string> items;
+        while(!feof(net)) {
+            fgets(line, sizeof(line), net);
+            StringSplitTrim(line, " ", items);
+
+            if ( items.size() < 17 ) continue;
+            if ( items[0].find(":") == string::npos ) continue;
+            if ( items[1] == "0" and items[9] == "0" ) continue;
+
+            string netface = "network."+items[0].erase( items[0].find(":") );
+            client.count( netface+".receive.bytes", atoll(items[1].c_str()) );
+            client.count( netface+".receive.packets", atoll(items[2].c_str()) );
+            client.count( netface+".transmit.bytes", atoll(items[9].c_str()) );
+            client.count( netface+".transmit.packets", atoll(items[10].c_str()) );
+        }
+
+        sysinfo(&si);
+        client.gauge("system.load", 100*si.loads[0]/0x10000);
+        client.gauge("system.freemem", si.freeram/1024);
+        client.gauge("system.procs", si.procs);
+        client.count("system.uptime", si.uptime);
+
+        /* rewind doesn't do the trick for /proc/stat */
+        freopen("/proc/stat", "r", stat);
+        fgets(line, sizeof(line), stat);
+        sscanf(line, "cpu  %u %u %u %u", &user, &nice, &sys, &idle);
+        total = user + sys + idle;
+        busy = user + sys;
+
+        client.send("system.cpu", 100 * (busy - old_busy)/(total - old_total), "g", 1.0);
+
+        old_total = total;
+        old_busy = busy;
+        sleep(6);
+    }
+
+    fclose(net);
+    fclose(stat);
+
+    exit(0);
+}
@@ -0,0 +1,28 @@
+
+#include <iostream>
+#include <unistd.h>
+#include "statsd_client.h"
+
+int main(void)
+{
+    std::cout << "running..." << std::endl;
+
+    statsd::StatsdClient client;
+    statsd::StatsdClient client2("127.0.0.1", 8125, "myproject.abx.", true);
+
+    client.count("count1", 123, 1.0);
+    client.count("count2", 125, 1.0);
+    client.gauge("speed", 10);
+    int i;
+    for (i=0; i<1000; i++)
+        client2.timing("request", i);
+    sleep(1);
+    client.inc("count1", 1.0);
+    client2.dec("count2", 1.0);
+//    for(i=0; i<1000; i++) {
+//        client2.count("count3", i, 0.8);
+//    }
+
+    std::cout << "done" << std::endl;
+    return 0;
+}
@@ -0,0 +1,246 @@
+#include <math.h>
+#include <netdb.h>
+#include <time.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <netinet/in.h>
+#include "statsd_client.h"
+
+using namespace std;
+namespace statsd {
+
+inline bool fequal(float a, float b)
+{
+    const float epsilon = 0.0001;
+    return ( fabs(a - b) < epsilon );
+}
+
+inline bool should_send(float sample_rate)
+{
+    if ( fequal(sample_rate, 1.0) )
+    {
+        return true;
+    }
+
+    float p = ((float)random() / RAND_MAX);
+    return sample_rate > p;
+}
+
+struct _StatsdClientData {
+    int     sock;
+    struct  sockaddr_in server;
+
+    string  ns;
+    string  host;
+    short   port;
+    bool    init;
+
+    char    errmsg[1024];
+};
+
+StatsdClient::StatsdClient(const string& host,
+                           int port,
+                           const string& ns,
+                           const bool batching)
+: batching_(batching), exit_(false)
+{
+    d = new _StatsdClientData;
+    d->sock = -1;
+    config(host, port, ns);
+    srandom(time(NULL));
+
+    if (batching_) {
+        pthread_mutex_init(&batching_mutex_lock_, nullptr);
+        batching_thread_ = std::thread([this] {
+          while (!exit_) {
+              std::deque<std::string> staged_message_queue;
+
+              pthread_mutex_lock(&batching_mutex_lock_);
+              batching_message_queue_.swap(staged_message_queue);
+              pthread_mutex_unlock(&batching_mutex_lock_);
+
+              while(!staged_message_queue.empty()) {
+                  send_to_daemon(staged_message_queue.front());
+                  staged_message_queue.pop_front();
+              }
+
+              std::this_thread::sleep_for(std::chrono::milliseconds(1000));
+          }
+        });
+    }
+}
+
+StatsdClient::~StatsdClient()
+{
+    if (batching_) {
+        exit_ = true;
+        batching_thread_.join();
+        pthread_mutex_destroy(&batching_mutex_lock_);
+    }
+
+
+    // close socket
+    if (d->sock >= 0) {
+        close(d->sock);
+        d->sock = -1;
+        delete d;
+        d = NULL;
+    }
+}
+
+void StatsdClient::config(const string& host, int port, const string& ns)
+{
+    d->ns = ns;
+    d->host = host;
+    d->port = port;
+    d->init = false;
+    if ( d->sock >= 0 ) {
+        close(d->sock);
+    }
+    d->sock = -1;
+}
+
+int StatsdClient::init()
+{
+    if ( d->init ) return 0;
+
+    d->sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+    if ( d->sock == -1 ) {
+        snprintf(d->errmsg, sizeof(d->errmsg), "could not create socket, err=%m");
+        return -1;
+    }
+
+    memset(&d->server, 0, sizeof(d->server));
+    d->server.sin_family = AF_INET;
+    d->server.sin_port = htons(d->port);
+
+    int ret = inet_aton(d->host.c_str(), &d->server.sin_addr);
+    if ( ret == 0 )
+    {
+        // host must be a domain, get it from internet
+        struct addrinfo hints, *result = NULL;
+        memset(&hints, 0, sizeof(hints));
+        hints.ai_family = AF_INET;
+        hints.ai_socktype = SOCK_DGRAM;
+
+        ret = getaddrinfo(d->host.c_str(), NULL, &hints, &result);
+        if ( ret ) {
+            close(d->sock);
+            d->sock = -1;
+            snprintf(d->errmsg, sizeof(d->errmsg),
+                     "getaddrinfo fail, error=%d, msg=%s", ret, gai_strerror(ret) );
+            return -2;
+        }
+        struct sockaddr_in* host_addr = (struct sockaddr_in*)result->ai_addr;
+        memcpy(&d->server.sin_addr, &host_addr->sin_addr, sizeof(struct in_addr));
+        freeaddrinfo(result);
+    }
+
+    d->init = true;
+    return 0;
+}
+
+/* will change the original string */
+void StatsdClient::cleanup(string& key)
+{
+    size_t pos = key.find_first_of(":|@");
+    while ( pos != string::npos )
+    {
+        key[pos] = '_';
+        pos = key.find_first_of(":|@");
+    }
+}
+
+int StatsdClient::dec(const string& key, float sample_rate)
+{
+    return count(key, -1, sample_rate);
+}
+
+int StatsdClient::inc(const string& key, float sample_rate)
+{
+    return count(key, 1, sample_rate);
+}
+
+int StatsdClient::count(const string& key, size_t value, float sample_rate)
+{
+    return send(key, value, "c", sample_rate);
+}
+
+int StatsdClient::gauge(const string& key, size_t value, float sample_rate)
+{
+    return send(key, value, "g", sample_rate);
+}
+
+int StatsdClient::timing(const string& key, size_t ms, float sample_rate)
+{
+    return send(key, ms, "ms", sample_rate);
+}
+
+int StatsdClient::send(string key, size_t value, const string &type, float sample_rate)
+{
+    if (!should_send(sample_rate)) {
+        return 0;
+    }
+
+    cleanup(key);
+
+    char buf[256];
+    if ( fequal( sample_rate, 1.0 ) )
+    {
+        snprintf(buf, sizeof(buf), "%s%s:%zd|%s",
+                 d->ns.c_str(), key.c_str(), value, type.c_str());
+    }
+    else
+    {
+        snprintf(buf, sizeof(buf), "%s%s:%zd|%s|@%.2f",
+                 d->ns.c_str(), key.c_str(), value, type.c_str(), sample_rate);
+    }
+
+    return send(buf);
+}
+
+int StatsdClient::send(const string &message)
+{
+    if (batching_) {
+        pthread_mutex_lock(&batching_mutex_lock_);
+        if (batching_message_queue_.empty() ||
+            batching_message_queue_.back().length() > max_batching_size) {
+            batching_message_queue_.push_back(message);
+        } else {
+            (*batching_message_queue_.rbegin()).append("\n").append(message);
+        }
+        pthread_mutex_unlock(&batching_mutex_lock_);
+
+        return 0;
+    } else {
+        return send_to_daemon(message);
+    }
+}
+
+
+int StatsdClient::send_to_daemon(const string &message) {
+    std::cout << "send_to_daemon: " << message.length() << " B" << std::endl;
+    int ret = init();
+    if ( ret )
+    {
+        return ret;
+    }
+    ret = sendto(d->sock, message.data(), message.size(), 0, (struct sockaddr *) &d->server, sizeof(d->server));
+    if ( ret == -1) {
+        snprintf(d->errmsg, sizeof(d->errmsg),
+                 "sendto server fail, host=%s:%d, err=%m", d->host.c_str(), d->port);
+        return -1;
+    }
+
+    return 0;
+}
+
+const char* StatsdClient::errmsg()
+{
+    return d->errmsg;
+}
+
+}
+
@@ -0,0 +1,66 @@
+
+#ifndef STATSD_CLIENT_H
+#define STATSD_CLIENT_H
+
+#include <sys/types.h>
+#include <arpa/inet.h>
+#include <sys/socket.h>
+#include <pthread.h>
+#include <string>
+#include <thread>
+#include <deque>
+#include <iostream>
+
+namespace statsd {
+
+struct _StatsdClientData;
+
+class StatsdClient {
+public:
+    StatsdClient(const std::string& host="127.0.0.1", int port=8125, const std::string& ns = "", const bool batching = false);
+    ~StatsdClient();
+
+public:
+    // you can config at anytime; client will use new address (useful for Singleton)
+    void config(const std::string& host, int port, const std::string& ns = "");
+    const char* errmsg();
+    int send_to_daemon(const std::string &);
+
+public:
+    int inc(const std::string& key, float sample_rate = 1.0);
+    int dec(const std::string& key, float sample_rate = 1.0);
+    int count(const std::string& key, size_t value, float sample_rate = 1.0);
+    int gauge(const std::string& key, size_t value, float sample_rate = 1.0);
+    int timing(const std::string& key, size_t ms, float sample_rate = 1.0);
+
+public:
+    /**
+     * (Low Level Api) manually send a message
+     * which might be composed of several lines.
+     */
+    int send(const std::string& message);
+
+    /* (Low Level Api) manually send a message
+     * type = "c", "g" or "ms"
+     */
+    int send(std::string key, size_t value,
+             const std::string& type, float sample_rate);
+
+protected:
+    int init();
+    void cleanup(std::string& key);
+
+protected:
+    struct _StatsdClientData* d;
+
+    bool batching_;
+    bool exit_;
+    pthread_mutex_t batching_mutex_lock_;
+    std::thread batching_thread_;
+    std::deque<std::string> batching_message_queue_;
+    const uint64_t max_batching_size = 32768;
+};
+
+}; // end namespace
+
+#endif
@@ -7,7 +7,12 @@ cmake_minimum_required (VERSION 3.4.1)
 project (ws)

 # There's -Weverything too for clang
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic")
+if (NOT WIN32)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic")
+endif()
+
+#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=thread")
+#set(CMAKE_LD_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=thread")

 set (CMAKE_CXX_STANDARD 14)

@@ -16,14 +21,20 @@ option(USE_TLS "Add TLS support" ON)
 include_directories(ws .)
 include_directories(ws ..)
 include_directories(ws ../third_party)
+include_directories(ws ../third_party/statsd-client-cpp/src)

 add_executable(ws 
  ../third_party/msgpack11/msgpack11.cpp
+  ../third_party/jsoncpp/jsoncpp.cpp
+  ../third_party/statsd-client-cpp/src/statsd_client.cpp
  ixcrypto/IXBase64.cpp
  ixcrypto/IXHash.cpp
  ixcrypto/IXUuid.cpp
+  ixcrypto/IXHMac.cpp

  IXRedisClient.cpp
+  IXSentryClient.cpp
+  IXCobraConnection.cpp

  ws_http_client.cpp
  ws_ping_pong.cpp
@@ -36,11 +47,19 @@ add_executable(ws
  ws_receive.cpp
  ws_redis_publish.cpp
  ws_redis_subscribe.cpp
+  ws_cobra_subscribe.cpp
+  ws_cobra_to_statsd.cpp
+  ws_cobra_to_sentry.cpp
  ws.cpp)

-if (APPLE AND USE_TLS)
-    target_link_libraries(ws "-framework foundation" "-framework security")
+target_link_libraries(ws ixwebsocket)
+
+if(NOT APPLE)
+  find_package(OpenSSL REQUIRED)
+  add_definitions(${OPENSSL_DEFINITIONS})
+  message(STATUS "OpenSSL: " ${OPENSSL_VERSION})
+  include_directories(${OPENSSL_INCLUDE_DIR})
+  target_link_libraries(ws ${OPENSSL_LIBRARIES})
 endif()

-target_link_libraries(ws ixwebsocket cpp_redis tacopie)
 install(TARGETS ws RUNTIME DESTINATION bin)
@@ -6,6 +6,7 @@

 #include "IXCobraConnection.h"
 #include <ixcrypto/IXHMac.h>
+#include <ixwebsocket/IXWebSocket.h>

 #include <algorithm>
 #include <stdexcept>
@@ -20,9 +21,10 @@ namespace ix
    constexpr size_t CobraConnection::kQueueMaxSize;

    CobraConnection::CobraConnection() :
+        _webSocket(new WebSocket()),
+        _publishMode(CobraConnection_PublishMode_Immediate),
        _authenticated(false),
-        _eventCallback(nullptr),
-        _publishMode(CobraConnection_PublishMode_Immediate)
+        _eventCallback(nullptr)
    {
        _pdu["action"] = "rtm/publish";

@@ -32,6 +34,7 @@ namespace ix
    CobraConnection::~CobraConnection()
    {
        disconnect();
+        setEventCallback(nullptr);
    }

    void CobraConnection::setTrafficTrackerCallback(const TrafficTrackerCallback& callback)
@@ -59,36 +62,40 @@ namespace ix
    }

    void CobraConnection::invokeEventCallback(ix::CobraConnectionEventType eventType,
-                                              const std::string& errorMsg,
-                                              const WebSocketHttpHeaders& headers)
+                                               const std::string& errorMsg,
+                                               const WebSocketHttpHeaders& headers,
+                                               const std::string& subscriptionId)
    {
        std::lock_guard<std::mutex> lock(_eventCallbackMutex);
        if (_eventCallback)
        {
-            _eventCallback(eventType, errorMsg, headers);
+            _eventCallback(eventType, errorMsg, headers, subscriptionId);
        }
    }

-    void CobraConnection::invokeErrorCallback(const std::string& errorMsg)
+    void CobraConnection::invokeErrorCallback(const std::string& errorMsg,
+                                               const std::string& serializedPdu)
    {
-        invokeEventCallback(ix::CobraConnection_EventType_Error, errorMsg);
+        std::stringstream ss;
+        ss << errorMsg << " : received pdu => " << serializedPdu;
+        invokeEventCallback(ix::CobraConnection_EventType_Error, ss.str());
    }

    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::WebSocketCloseInfo& closeInfo,
-                   const ix::WebSocketHttpHeaders& headers)
+                   const ix::WebSocketOpenInfo& openInfo,
+                   const ix::WebSocketCloseInfo& closeInfo)
            {
                CobraConnection::invokeTrafficTrackerCallback(wireSize, true);

@@ -97,7 +104,7 @@ namespace ix
                {
                    invokeEventCallback(ix::CobraConnection_EventType_Open,
                                        std::string(),
-                                        headers);
+                                        openInfo.headers);
                    sendHandshakeMessage();
                }
                else if (messageType == ix::WebSocket_MessageType_Close)
@@ -116,13 +123,13 @@ namespace ix
                    Json::Reader reader;
                    if (!reader.parse(str, data))
                    {
-                        invokeErrorCallback(std::string("Invalid json: ") + str);
+                        invokeErrorCallback("Invalid json", str);
                        return;
                    }

                    if (!data.isMember("action"))
                    {
-                        invokeErrorCallback("Missing action");
+                        invokeErrorCallback("Missing action", str);
                        return;
                    }

@@ -132,12 +139,12 @@ namespace ix
                    {
                        if (!handleHandshakeResponse(data))
                        {
-                            invokeErrorCallback("Error extracting nonce from handshake response");
+                            invokeErrorCallback("Error extracting nonce from handshake response", str);
                        }
                    }
                    else if (action == "auth/handshake/error")
                    {
-                        invokeErrorCallback("Handshake error."); // print full message ?
+                        invokeErrorCallback("Handshake error", str);
                    }
                    else if (action == "auth/authenticate/ok")
                    {
@@ -147,15 +154,37 @@ namespace ix
                    }
                    else if (action == "auth/authenticate/error")
                    {
-                        invokeErrorCallback("Authentication error."); // print full message ?
+                        invokeErrorCallback("Authentication error", str);
                    }
                    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(std::string("Un-handled message type: ") + action);
+                        invokeErrorCallback("Un-handled message type", str);
                    }
                }
                else if (messageType == ix::WebSocket_MessageType_Error)
@@ -165,7 +194,7 @@ 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());
+                    invokeErrorCallback(ss.str(), std::string());
                }
        });
    }
@@ -176,10 +205,10 @@ namespace ix
    }

    void CobraConnection::configure(const std::string& appkey,
-                                    const std::string& endpoint,
-                                    const std::string& rolename,
-                                    const std::string& rolesecret,
-                                    WebSocketPerMessageDeflateOptions webSocketPerMessageDeflateOptions)
+                                     const std::string& endpoint,
+                                     const std::string& rolename,
+                                     const std::string& rolesecret,
+                                     WebSocketPerMessageDeflateOptions webSocketPerMessageDeflateOptions)
    {
        _appkey = appkey;
        _endpoint = endpoint;
@@ -192,8 +221,8 @@ namespace ix
        ss << _appkey;

        std::string url = ss.str();
-        _webSocket.setUrl(url);
-        _webSocket.setPerMessageDeflateOptions(webSocketPerMessageDeflateOptions);
+        _webSocket->setUrl(url);
+        _webSocket->setPerMessageDeflateOptions(webSocketPerMessageDeflateOptions);
    }

    //
@@ -226,10 +255,10 @@ namespace ix
        std::string serializedJson = serializeJson(pdu);
        CobraConnection::invokeTrafficTrackerCallback(serializedJson.size(), false);

-        return _webSocket.send(serializedJson).success;
+        return _webSocket->send(serializedJson).success;
    }

-    //
+    // 
    // Extract the nonce from the handshake response
    // use it to compute a hash during authentication
    //
@@ -288,16 +317,47 @@ 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)
    {
        if (!pdu.isMember("body")) return false;
        Json::Value body = pdu["body"];

-        // Identify subscription_id, so that we can find
+        // Identify subscription_id, so that we can find 
        // which callback to execute
        if (!body.isMember("subscription_id")) return false;
        Json::Value subscriptionId = body["subscription_id"];
@@ -320,13 +380,13 @@ 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)
@@ -339,7 +399,7 @@ namespace ix
    // publish is not thread safe as we are trying to reuse some Json objects.
    //
    bool CobraConnection::publish(const Json::Value& channels,
-                                  const Json::Value& msg)
+                                   const Json::Value& msg)
    {
        _body["channels"] = channels;
        _body["message"] = msg;
@@ -371,7 +431,7 @@ namespace ix
    }

    void CobraConnection::subscribe(const std::string& channel,
-                                    SubscriptionCallback cb)
+                                     SubscriptionCallback cb)
    {
        // Create and send a subscribe pdu
        Json::Value body;
@@ -381,7 +441,7 @@ 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);
@@ -400,13 +460,13 @@ namespace ix

        // Create and send an unsubscribe pdu
        Json::Value body;
-        body["channel"] = channel;
+        body["subscription_id"] = channel;

        Json::Value pdu;
        pdu["action"] = "rtm/unsubscribe";
        pdu["body"] = body;

-        _webSocket.send(pdu.toStyledString());
+        _webSocket->send(pdu.toStyledString());
    }

    //
@@ -456,7 +516,7 @@ 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;
@@ -471,5 +531,5 @@ namespace ix
    {
        connect();
    }
-
+    
 } // namespace ix
@@ -11,19 +11,24 @@
 #include <string>
 #include <thread>
 #include <unordered_map>
+#include <memory>

 #include <jsoncpp/json/json.h>
-#include <ixwebsocket/IXWebSocket.h>
+#include <ixwebsocket/IXWebSocketHttpHeaders.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_Closed = 3,
+        CobraConnection_EventType_Subscribed = 4,
+        CobraConnection_EventType_UnSubscribed = 5
    };

    enum CobraConnectionPublishMode
@@ -35,7 +40,8 @@ namespace ix
    using SubscriptionCallback = std::function<void(const Json::Value&)>;
    using EventCallback = std::function<void(CobraConnectionEventType,
                                             const std::string&,
-                                             const WebSocketHttpHeaders&)>;
+                                             const WebSocketHttpHeaders&,
+                                             const std::string&)>;
    using TrafficTrackerCallback = std::function<void(size_t size, bool incoming)>;

    class CobraConnection
@@ -84,7 +90,7 @@ namespace ix

        /// Returns true only if we're connected
        bool isConnected() const;
-
+        
        /// Flush the publish queue
        bool flushQueue();

@@ -100,6 +106,8 @@ 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();

@@ -113,13 +121,15 @@ namespace ix
        /// Invoke event callbacks
        void invokeEventCallback(CobraConnectionEventType eventType,
                                 const std::string& errorMsg = std::string(),
-                                 const WebSocketHttpHeaders& headers = WebSocketHttpHeaders());
-        void invokeErrorCallback(const std::string& errorMsg);
+                                 const WebSocketHttpHeaders& headers = WebSocketHttpHeaders(),
+                                 const std::string& subscriptionId = std::string());
+        void invokeErrorCallback(const std::string& errorMsg,
+                                 const std::string& serializedPdu);

        ///
        /// Member variables
-        ///
-        WebSocket _webSocket;
+        /// 
+        std::unique_ptr<WebSocket> _webSocket;

        /// Configuration data
        std::string _appkey;
@@ -148,10 +158,10 @@ namespace ix
        std::unordered_map<std::string, SubscriptionCallback> _cbs;
        mutable std::mutex _cbsMutex;

-        // Message Queue can be touched on control+background thread,
+        // Message Queue can be touched on control+background thread, 
        // protecting with a mutex.
        //
-        // Message queue is used when there are problems sending messages so
+        // Message queue is used when there are problems sending messages so 
        // that sending can be retried later.
        std::deque<std::string> _messageQueue;
        mutable std::mutex _queueMutex;
@@ -159,5 +169,5 @@ namespace ix
        // Cap the queue size (100 elems so far -> ~100k)
        static constexpr size_t kQueueMaxSize = 256;
    };
-
+    
 } // namespace ix
@@ -7,7 +7,6 @@
 #include "IXRedisClient.h"
 #include <ixwebsocket/IXSocketFactory.h>
 #include <ixwebsocket/IXSocket.h>
-#include <cpp_redis/cpp_redis>

 #include <sstream>
 #include <iomanip>
@@ -18,14 +17,6 @@ namespace ix
 {
    bool RedisClient::connect(const std::string& hostname, int port)
    {
-         _sub.connect(hostname, port, []
-                 (const std::string& host, std::size_t port, cpp_redis::connect_state status) {
-            if (status == cpp_redis::connect_state::dropped) {
-              std::cout << "client disconnected from " << host << ":" << port << std::endl;
-            }
-          });
-
-         // also subscribe the old way
        bool tls = false;
        std::string errorMsg;
        _socket = createSocket(tls, errorMsg);
@@ -37,22 +28,11 @@ namespace ix

        std::string errMsg;
        return _socket->connect(hostname, port, errMsg, nullptr);
-        
    }

    bool RedisClient::auth(const std::string& password,
                           std::string& response)
    {
-        // authentication if server-server requires it
-        //  _sub.auth(password, [&response](const cpp_redis::reply& reply) {
-        //    if (reply.is_error()) { std::cerr << "Authentication failed: " << reply.as_string() << std::endl; }
-        //    else {
-        //      std::cout << "successful authentication" << std::endl;
-        //    }
-        //  });
-
-        return true;
-#if 0
        response.clear();

        if (!_socket) return false;
@@ -80,7 +60,6 @@ namespace ix

        response = line;
        return lineValid;
-#endif
    }


@@ -122,19 +101,6 @@ namespace ix
                                const OnRedisSubscribeResponseCallback& responseCallback,
                                const OnRedisSubscribeCallback& callback)
    {
-        _sub.subscribe(channel, [&callback](const std::string& chan, const std::string& msg) {
-            callback(msg);
-        });
-        _sub.commit();
-
-        while (true)
-        {
-            auto duration = std::chrono::seconds(1);
-            std::this_thread::sleep_for(duration);
-        }
-
-        return true;
-#if 0
        if (!_socket) return false;

        std::stringstream ss;
@@ -237,6 +203,5 @@ namespace ix
        }

        return true;
-#endif
    }
 }
@@ -8,7 +8,6 @@

 #include <memory>
 #include <functional>
-#include <cpp_redis/cpp_redis>

 namespace ix
 {
@@ -36,8 +35,6 @@ namespace ix
                       const OnRedisSubscribeCallback& callback);

    private:
-        cpp_redis::subscriber _sub;
-
        std::shared_ptr<Socket> _socket;
    };
 }
@@ -0,0 +1,178 @@
+/*
+ *  IXSentryClient.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone. All rights reserved.
+ */
+
+#include "IXSentryClient.h"
+
+#include <chrono>
+#include <iostream>
+
+#include <ixwebsocket/IXWebSocketHttpHeaders.h>
+
+
+namespace ix
+{
+    SentryClient::SentryClient(const std::string& dsn) :
+        _dsn(dsn),
+        _validDsn(false),
+        _luaFrameRegex("\t([^/]+):([0-9]+): in function '([^/]+)'")
+    {
+        const std::regex dsnRegex("(http[s]?)://([^:]+):([^@]+)@([^/]+)/([0-9]+)");
+        std::smatch group;
+
+        if (std::regex_match(dsn, group, dsnRegex) and group.size() == 6)
+        {
+            _validDsn = true;
+
+            const auto scheme = group.str(1);
+            const auto host = group.str(4);
+            const auto project_id = group.str(5);
+            _url = scheme + "://" + host + "/api/" + project_id + "/store/";
+
+            _publicKey = group.str(2);
+            _secretKey = group.str(3);
+        }
+    }
+
+    int64_t SentryClient::getTimestamp()
+    {
+        const auto tp = std::chrono::system_clock::now();
+        const auto dur = tp.time_since_epoch();
+        return std::chrono::duration_cast<std::chrono::seconds>(dur).count();
+    }
+
+    std::string SentryClient::getIso8601()
+    {
+        std::time_t now;
+        std::time(&now);
+        char buf[sizeof "2011-10-08T07:07:09Z"];
+        std::strftime(buf, sizeof buf, "%Y-%m-%dT%H:%M:%SZ", std::gmtime(&now));
+        return buf;
+    }
+
+    std::string SentryClient::computeAuthHeader()
+    {
+        std::string securityHeader("Sentry sentry_version=5");
+        securityHeader += ",sentry_client=ws/1.0.0";
+        securityHeader += ",sentry_timestamp=" + std::to_string(SentryClient::getTimestamp());
+        securityHeader += ",sentry_key=" + _publicKey;
+        securityHeader += ",sentry_secret=" + _secretKey;
+
+        return securityHeader;
+    }
+
+    Json::Value SentryClient::parseLuaStackTrace(const std::string& stack)
+    {
+        Json::Value frames;
+
+        // Split by lines
+        std::string line;
+        std::stringstream tokenStream(stack);
+
+        std::stringstream ss;
+        std::smatch group;
+
+        while (std::getline(tokenStream, line))
+        {
+            //	MapScene.lua:2169: in function 'singleCB'
+            if (std::regex_match(line, group, _luaFrameRegex))
+            {
+                const auto fileName = group.str(1);
+                const auto linenoStr = group.str(2);
+                const auto function = group.str(3);
+
+                ss << linenoStr;
+                uint64_t lineno;
+                ss >> lineno;
+
+                Json::Value frame;
+                frame["lineno"] = lineno;
+                frame["filename"] = fileName;
+                frame["function"] = function;
+
+                frames.append(frame);
+            }
+        }
+
+        return frames;
+    }
+
+    std::string SentryClient::computePayload(const Json::Value& msg)
+    {
+        Json::Value payload;
+        payload["platform"] = "python";
+        payload["sdk"]["name"] = "ws";
+        payload["sdk"]["version"] = "1.0.0";
+        payload["timestamp"] = SentryClient::getIso8601();
+
+        Json::Value exception;
+        exception["value"] = msg["data"]["message"];
+
+        std::string stackTraceFieldName = 
+            (msg["id"].asString() == "game_noisytypes_id") ? "traceback" : "stack";
+                             
+        exception["stacktrace"]["frames"] = 
+            parseLuaStackTrace(msg["data"][stackTraceFieldName].asString());
+
+        payload["exception"].append(exception);
+
+        Json::Value extra;
+        extra["cobra_event"] = msg;
+
+        exception["extra"] = extra;
+
+        return _jsonWriter.write(payload);
+    }
+
+    bool SentryClient::send(const Json::Value& msg,
+                            bool verbose)
+    {
+        HttpRequestArgs args;
+        args.extraHeaders["X-Sentry-Auth"] = SentryClient::computeAuthHeader();
+        args.connectTimeout = 60;
+        args.transferTimeout = 5 * 60;
+        args.followRedirects = true;
+        args.verbose = verbose;
+        args.logger = [](const std::string& msg)
+        {
+            std::cout << msg;
+        };
+
+        std::string body = computePayload(msg);
+        HttpResponse out = _httpClient.post(_url, body, args);
+
+        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);
+
+        if (verbose)
+        {
+            for (auto it : responseHeaders)
+            {
+                std::cerr << it.first << ": " << it.second << std::endl;
+            }
+
+            std::cerr << "Upload size: " << uploadSize << std::endl;
+            std::cerr << "Download size: " << downloadSize << std::endl;
+
+            std::cerr << "Status: " << statusCode << std::endl;
+            if (errorCode != HttpErrorCode_Ok)
+            {
+                std::cerr << "error message: " << errorMsg << std::endl;
+            }
+
+            if (responseHeaders["Content-Type"] != "application/octet-stream")
+            {
+                std::cerr << "payload: " << payload << std::endl;
+            }
+        }
+
+        return statusCode == 200;
+    }
+} // namespace ix
@@ -0,0 +1,47 @@
+/*
+ *  IXSentryClient.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone. All rights reserved.
+ */
+
+#pragma once
+
+#include <jsoncpp/json/json.h>
+#include <regex>
+
+#include <ixwebsocket/IXHttpClient.h>
+
+namespace ix
+{
+    class SentryClient
+    {
+    public:
+        SentryClient(const std::string& dsn);
+        ~SentryClient() = default;
+
+        bool send(const Json::Value& msg, bool verbose);
+
+    private:
+        int64_t getTimestamp();
+        std::string computeAuthHeader();
+        std::string getIso8601();
+        std::string computePayload(const Json::Value& msg);
+
+        Json::Value parseLuaStackTrace(const std::string& stack);
+
+        std::string _dsn;
+        bool _validDsn;
+        std::string _url;
+
+        // Used for authentication with a header
+        std::string _publicKey;
+        std::string _secretKey;
+
+        Json::FastWriter _jsonWriter;
+
+        std::regex _luaFrameRegex;
+
+        HttpClient _httpClient;
+    };
+    
+} // namespace ix
@@ -1,3 +0,0 @@
-venv
-build
-node_modules
@@ -1,38 +0,0 @@
-#
-# 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)
-
-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)
@@ -1,6 +0,0 @@
-```
-mkdir build
-cd build
-cmake ..
-make && (cd .. ; sh cobra_publisher.sh)
-```
@@ -1,123 +0,0 @@
-/*
- *  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;
-}
@@ -1,11 +0,0 @@
-#!/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
@@ -1,45 +0,0 @@
-/*
- *  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)
-    }
-  });
-})
@@ -1,43 +0,0 @@
-#!/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()
@@ -1,3 +0,0 @@
-{"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"}
@@ -1,333 +0,0 @@
-/// Json-cpp amalgated forward header (http://jsoncpp.sourceforge.net/).
-/// It is intended to be used with #include "json/json-forwards.h"
-/// This header provides forward declaration for all JsonCpp types.
-
-// //////////////////////////////////////////////////////////////////////
-// Beginning of content of file: LICENSE
-// //////////////////////////////////////////////////////////////////////
-
-/*
-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,
-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
-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:
-
-========================================================================
-Copyright (c) 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
-
-Permission is hereby granted, free of charge, to any person
-obtaining a copy of this software and associated documentation
-files (the "Software"), to deal in the Software without
-restriction, including without limitation the rights to use, copy,
-modify, merge, publish, distribute, sublicense, and/or sell copies
-of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
-BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
-ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-========================================================================
-(END LICENSE TEXT)
-
-The MIT license is compatible with both the GPL and commercial
-software, affording one all of the rights of Public Domain with the
-minor nuisance of being required to keep the above copyright notice
-and license text in the source code. Note also that by accepting the
-Public Domain "license" you can re-license your copy using whatever
-license you like.
-
-*/
-
-// //////////////////////////////////////////////////////////////////////
-// End of content of file: LICENSE
-// //////////////////////////////////////////////////////////////////////
-
-
-
-
-
-#ifndef JSON_FORWARD_AMALGATED_H_INCLUDED
-# define JSON_FORWARD_AMALGATED_H_INCLUDED
-/// If defined, indicates that the source file is amalgated
-/// to prevent private header inclusion.
-#define JSON_IS_AMALGAMATION
-
-// //////////////////////////////////////////////////////////////////////
-// Beginning of content of file: include/json/config.h
-// //////////////////////////////////////////////////////////////////////
-
-// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
-// Distributed under MIT license, or public domain if desired and
-// recognized in your jurisdiction.
-// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
-
-#ifndef JSON_CONFIG_H_INCLUDED
-#define JSON_CONFIG_H_INCLUDED
-#include <stddef.h>
-#include <string> //typedef String
-#include <stdint.h> //typedef int64_t, uint64_t
-
-/// If defined, indicates that json library is embedded in CppTL library.
-//# define JSON_IN_CPPTL 1
-
-/// If defined, indicates that json may leverage CppTL library
-//#  define JSON_USE_CPPTL 1
-/// If defined, indicates that cpptl vector based map should be used instead of
-/// std::map
-/// as Value container.
-//#  define JSON_USE_CPPTL_SMALLMAP 1
-
-// If non-zero, the library uses exceptions to report bad input instead of C
-// assertion macros. The default is to use exceptions.
-#ifndef JSON_USE_EXCEPTION
-#define JSON_USE_EXCEPTION 1
-#endif
-
-/// If defined, indicates that the source file is amalgated
-/// to prevent private header inclusion.
-/// Remarks: it is automatically defined in the generated amalgated header.
-// #define JSON_IS_AMALGAMATION
-
-#ifdef JSON_IN_CPPTL
-#include <cpptl/config.h>
-#ifndef JSON_USE_CPPTL
-#define JSON_USE_CPPTL 1
-#endif
-#endif
-
-#ifdef JSON_IN_CPPTL
-#define JSON_API CPPTL_API
-#elif defined(JSON_DLL_BUILD)
-#if defined(_MSC_VER) || defined(__MINGW32__)
-#define JSON_API __declspec(dllexport)
-#define JSONCPP_DISABLE_DLL_INTERFACE_WARNING
-#endif // if defined(_MSC_VER)
-#elif defined(JSON_DLL)
-#if defined(_MSC_VER) || defined(__MINGW32__)
-#define JSON_API __declspec(dllimport)
-#define JSONCPP_DISABLE_DLL_INTERFACE_WARNING
-#endif // if defined(_MSC_VER)
-#endif // ifdef JSON_IN_CPPTL
-#if !defined(JSON_API)
-#define JSON_API
-#endif
-
-// If JSON_NO_INT64 is defined, then Json only support C++ "int" type for
-// integer
-// Storages, and 64 bits integer support is disabled.
-// #define JSON_NO_INT64 1
-
-#if defined(_MSC_VER) // MSVC
-#  if _MSC_VER <= 1200 // MSVC 6
-    // Microsoft Visual Studio 6 only support conversion from __int64 to double
-    // (no conversion from unsigned __int64).
-#    define JSON_USE_INT64_DOUBLE_CONVERSION 1
-    // Disable warning 4786 for VS6 caused by STL (identifier was truncated to '255'
-    // characters in the debug information)
-    // All projects I've ever seen with VS6 were using this globally (not bothering
-    // with pragma push/pop).
-#    pragma warning(disable : 4786)
-#  endif // MSVC 6
-
-#  if _MSC_VER >= 1500 // MSVC 2008
-    /// Indicates that the following function is deprecated.
-#    define JSONCPP_DEPRECATED(message) __declspec(deprecated(message))
-#  endif
-
-#endif // defined(_MSC_VER)
-
-// In c++11 the override keyword allows you to explicity define that a function
-// is intended to override the base-class version.  This makes the code more
-// managable and fixes a set of common hard-to-find bugs.
-#if __cplusplus >= 201103L
-# define JSONCPP_OVERRIDE override
-# define JSONCPP_NOEXCEPT noexcept
-#elif defined(_MSC_VER) && _MSC_VER > 1600 && _MSC_VER < 1900
-# define JSONCPP_OVERRIDE override
-# define JSONCPP_NOEXCEPT throw()
-#elif defined(_MSC_VER) && _MSC_VER >= 1900
-# define JSONCPP_OVERRIDE override
-# define JSONCPP_NOEXCEPT noexcept
-#else
-# define JSONCPP_OVERRIDE
-# define JSONCPP_NOEXCEPT throw()
-#endif
-
-#ifndef JSON_HAS_RVALUE_REFERENCES
-
-#if defined(_MSC_VER) && _MSC_VER >= 1600 // MSVC >= 2010
-#define JSON_HAS_RVALUE_REFERENCES 1
-#endif // MSVC >= 2010
-
-#ifdef __clang__
-#if __has_feature(cxx_rvalue_references)
-#define JSON_HAS_RVALUE_REFERENCES 1
-#endif  // has_feature
-
-#elif defined __GNUC__ // not clang (gcc comes later since clang emulates gcc)
-#if defined(__GXX_EXPERIMENTAL_CXX0X__) || (__cplusplus >= 201103L)
-#define JSON_HAS_RVALUE_REFERENCES 1
-#endif  // GXX_EXPERIMENTAL
-
-#endif // __clang__ || __GNUC__
-
-#endif // not defined JSON_HAS_RVALUE_REFERENCES
-
-#ifndef JSON_HAS_RVALUE_REFERENCES
-#define JSON_HAS_RVALUE_REFERENCES 0
-#endif
-
-#ifdef __clang__
-#  if __has_extension(attribute_deprecated_with_message)
-#    define JSONCPP_DEPRECATED(message)  __attribute__ ((deprecated(message)))
-#  endif
-#elif defined __GNUC__ // not clang (gcc comes later since clang emulates gcc)
-#  if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5))
-#    define JSONCPP_DEPRECATED(message)  __attribute__ ((deprecated(message)))
-#  elif (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
-#    define JSONCPP_DEPRECATED(message)  __attribute__((__deprecated__))
-#  endif  // GNUC version
-#endif // __clang__ || __GNUC__
-
-#if !defined(JSONCPP_DEPRECATED)
-#define JSONCPP_DEPRECATED(message)
-#endif // if !defined(JSONCPP_DEPRECATED)
-
-#if __GNUC__ >= 6
-#  define JSON_USE_INT64_DOUBLE_CONVERSION 1
-#endif
-
-#if !defined(JSON_IS_AMALGAMATION)
-
-# include "version.h"
-
-# if JSONCPP_USING_SECURE_MEMORY
-#  include "allocator.h" //typedef Allocator
-# endif
-
-#endif // if !defined(JSON_IS_AMALGAMATION)
-
-namespace Json {
-typedef int Int;
-typedef unsigned int UInt;
-#if defined(JSON_NO_INT64)
-typedef int LargestInt;
-typedef unsigned int LargestUInt;
-#undef JSON_HAS_INT64
-#else                 // if defined(JSON_NO_INT64)
-// For Microsoft Visual use specific types as long long is not supported
-#if defined(_MSC_VER) // Microsoft Visual Studio
-typedef __int64 Int64;
-typedef unsigned __int64 UInt64;
-#else                 // if defined(_MSC_VER) // Other platforms, use long long
-typedef int64_t Int64;
-typedef uint64_t UInt64;
-#endif // if defined(_MSC_VER)
-typedef Int64 LargestInt;
-typedef UInt64 LargestUInt;
-#define JSON_HAS_INT64
-#endif // if defined(JSON_NO_INT64)
-#if JSONCPP_USING_SECURE_MEMORY
-#define JSONCPP_STRING        std::basic_string<char, std::char_traits<char>, Json::SecureAllocator<char> >
-#define JSONCPP_OSTRINGSTREAM std::basic_ostringstream<char, std::char_traits<char>, Json::SecureAllocator<char> >
-#define JSONCPP_OSTREAM       std::basic_ostream<char, std::char_traits<char>>
-#define JSONCPP_ISTRINGSTREAM std::basic_istringstream<char, std::char_traits<char>, Json::SecureAllocator<char> >
-#define JSONCPP_ISTREAM       std::istream
-#else
-#define JSONCPP_STRING        std::string
-#define JSONCPP_OSTRINGSTREAM std::ostringstream
-#define JSONCPP_OSTREAM       std::ostream
-#define JSONCPP_ISTRINGSTREAM std::istringstream
-#define JSONCPP_ISTREAM       std::istream
-#endif // if JSONCPP_USING_SECURE_MEMORY
-} // end namespace Json
-
-#endif // JSON_CONFIG_H_INCLUDED
-
-// //////////////////////////////////////////////////////////////////////
-// End of content of file: include/json/config.h
-// //////////////////////////////////////////////////////////////////////
-
-
-
-
-
-
-// //////////////////////////////////////////////////////////////////////
-// Beginning of content of file: include/json/forwards.h
-// //////////////////////////////////////////////////////////////////////
-
-// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
-// Distributed under MIT license, or public domain if desired and
-// recognized in your jurisdiction.
-// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
-
-#ifndef JSON_FORWARDS_H_INCLUDED
-#define JSON_FORWARDS_H_INCLUDED
-
-#if !defined(JSON_IS_AMALGAMATION)
-#include "config.h"
-#endif // if !defined(JSON_IS_AMALGAMATION)
-
-namespace Json {
-
-// writer.h
-class FastWriter;
-class StyledWriter;
-
-// reader.h
-class Reader;
-
-// features.h
-class Features;
-
-// value.h
-typedef unsigned int ArrayIndex;
-class StaticString;
-class Path;
-class PathArgument;
-class Value;
-class ValueIteratorBase;
-class ValueIterator;
-class ValueConstIterator;
-
-} // namespace Json
-
-#endif // JSON_FORWARDS_H_INCLUDED
-
-// //////////////////////////////////////////////////////////////////////
-// End of content of file: include/json/forwards.h
-// //////////////////////////////////////////////////////////////////////
-
-
-
-
-
-#endif //ifndef JSON_FORWARD_AMALGATED_H_INCLUDED
@@ -1,19 +0,0 @@
-{
-  "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=="
-    },
-    "ws": {
-      "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"
-      }
-    }
-  }
-}
@@ -6,7 +6,11 @@
 #include "IXHMac.h"
 #include "IXBase64.h"

-#include <openssl/hmac.h>
+#ifdef __APPLE__
+# include <CommonCrypto/CommonHMAC.h>
+#else
+# include <openssl/hmac.h>
+#endif

 namespace ix
 {
@@ -15,10 +19,17 @@ 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);

@@ -38,18 +38,28 @@ int main(int argc, char** argv)
    std::string channel;
    std::string message;
    std::string password;
+    std::string appkey;
+    std::string endpoint;
+    std::string rolename;
+    std::string rolesecret;
+    std::string prefix("ws.test.v0");
+    std::string fields;
+    std::string dsn;
    bool headersOnly = false;
    bool followRedirects = false;
    bool verbose = false;
    bool save = false;
    bool compress = false;
+    bool strict = false;
    int port = 8080;
    int redisPort = 6379;
+    int statsdPort = 8125;
    int connectTimeOut = 60;
    int transferTimeout = 1800;
    int maxRedirects = 5;
    int delayMs = -1;
    int count = 1;
+    int jobs = 4;

    CLI::App* sendApp = app.add_subcommand("send", "Send a file");
    sendApp->add_option("url", url, "Connection url")->required();
@@ -117,6 +127,40 @@ int main(int argc, char** argv)
    redisSubscribeApp->add_flag("-v", verbose, "Verbose");
    redisSubscribeApp->add_option("--pidfile", pidfile, "Pid file");

+    CLI::App* cobraSubscribeApp = app.add_subcommand("cobra_subscribe", "Cobra subscriber");
+    cobraSubscribeApp->add_option("--appkey", appkey, "Appkey");
+    cobraSubscribeApp->add_option("--endpoint", endpoint, "Endpoint");
+    cobraSubscribeApp->add_option("--rolename", rolename, "Role name");
+    cobraSubscribeApp->add_option("--rolesecret", rolesecret, "Role secret");
+    cobraSubscribeApp->add_option("channel", channel, "Channel")->required();
+    cobraSubscribeApp->add_flag("-v", verbose, "Verbose");
+    cobraSubscribeApp->add_option("--pidfile", pidfile, "Pid file");
+
+    CLI::App* cobra2statsd = app.add_subcommand("cobra_to_statsd", "Cobra to statsd");
+    cobra2statsd->add_option("--appkey", appkey, "Appkey");
+    cobra2statsd->add_option("--endpoint", endpoint, "Endpoint");
+    cobra2statsd->add_option("--rolename", rolename, "Role name");
+    cobra2statsd->add_option("--rolesecret", rolesecret, "Role secret");
+    cobra2statsd->add_option("--host", hostname, "Statsd host");
+    cobra2statsd->add_option("--port", statsdPort, "Statsd port");
+    cobra2statsd->add_option("--prefix", prefix, "Statsd prefix");
+    cobra2statsd->add_option("--fields", fields, "Extract fields for naming the event")->join();
+    cobra2statsd->add_option("channel", channel, "Channel")->required();
+    cobra2statsd->add_flag("-v", verbose, "Verbose");
+    cobra2statsd->add_option("--pidfile", pidfile, "Pid file");
+
+    CLI::App* cobra2sentry = app.add_subcommand("cobra_to_sentry", "Cobra to sentry");
+    cobra2sentry->add_option("--appkey", appkey, "Appkey");
+    cobra2sentry->add_option("--endpoint", endpoint, "Endpoint");
+    cobra2sentry->add_option("--rolename", rolename, "Role name");
+    cobra2sentry->add_option("--rolesecret", rolesecret, "Role secret");
+    cobra2sentry->add_option("--dsn", dsn, "Sentry DSN");
+    cobra2sentry->add_option("--jobs", jobs, "Number of thread sending events to Sentry");
+    cobra2sentry->add_option("channel", channel, "Channel")->required();
+    cobra2sentry->add_flag("-v", verbose, "Verbose");
+    cobra2sentry->add_flag("-s", strict, "Strict mode. Error out when sending to sentry fails");
+    cobra2sentry->add_option("--pidfile", pidfile, "Pid file");
+
    CLI11_PARSE(app, argc, argv);

    // pid file handling
@@ -179,6 +223,26 @@ int main(int argc, char** argv)
    {
        return ix::ws_redis_subscribe_main(hostname, redisPort, password, channel, verbose);
    }
+    else if (app.got_subcommand("cobra_subscribe"))
+    {
+        return ix::ws_cobra_subscribe_main(appkey, endpoint,
+                                           rolename, rolesecret,
+                                           channel, verbose);
+    }
+    else if (app.got_subcommand("cobra_to_statsd"))
+    {
+        return ix::ws_cobra_to_statsd_main(appkey, endpoint,
+                                           rolename, rolesecret,
+                                           channel, hostname, statsdPort,
+                                           prefix, fields, verbose);
+    }
+    else if (app.got_subcommand("cobra_to_sentry"))
+    {
+        return ix::ws_cobra_to_sentry_main(appkey, endpoint,
+                                           rolename, rolesecret,
+                                           channel, dsn,
+                                           verbose, strict, jobs);
+    }

    return 1;
 }
@@ -52,4 +52,32 @@ namespace ix
                                const std::string& password,
                                const std::string& channel,
                                bool verbose);
+
+    int ws_cobra_subscribe_main(const std::string& appkey,
+                                const std::string& endpoint,
+                                const std::string& rolename,
+                                const std::string& rolesecret,
+                                const std::string& channel,
+                                bool verbose);
+
+    int ws_cobra_to_statsd_main(const std::string& appkey,
+                                const std::string& endpoint,
+                                const std::string& rolename,
+                                const std::string& rolesecret,
+                                const std::string& channel,
+                                const std::string& host,
+                                int port,
+                                const std::string& prefix,
+                                const std::string& fields,
+                                bool verbose);
+    
+    int ws_cobra_to_sentry_main(const std::string& appkey,
+                                const std::string& endpoint,
+                                const std::string& rolename,
+                                const std::string& rolesecret,
+                                const std::string& channel,
+                                const std::string& dsn,
+                                bool verbose,
+                                bool strict,
+                                int jobs);
 }
@@ -0,0 +1,76 @@
+/*
+ *  ws_cobra_subscribe.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#include <iostream>
+#include <sstream>
+#include <chrono>
+#include <thread>
+#include <atomic>
+#include "IXCobraConnection.h"
+
+namespace ix
+{
+    int ws_cobra_subscribe_main(const std::string& appkey,
+                                const std::string& endpoint,
+                                const std::string& rolename,
+                                const std::string& rolesecret,
+                                const std::string& channel,
+                                bool verbose)
+    {
+
+        ix::CobraConnection conn;
+        conn.configure(appkey, endpoint,
+                       rolename, rolesecret,
+                       ix::WebSocketPerMessageDeflateOptions(true));
+        conn.connect();
+
+        Json::FastWriter jsonWriter;
+
+        conn.setEventCallback(
+            [&conn, &channel, &jsonWriter]
+            (ix::CobraConnectionEventType eventType,
+             const std::string& errMsg,
+             const ix::WebSocketHttpHeaders& headers,
+             const std::string& subscriptionId)
+            {
+                if (eventType == ix::CobraConnection_EventType_Open)
+                {
+                    std::cout << "Subscriber: connected" << std::endl;
+                }
+                else if (eventType == ix::CobraConnection_EventType_Authenticated)
+                {
+                    std::cout << "Subscriber authenticated" << std::endl;
+                    conn.subscribe(channel,
+                                   [&jsonWriter](const Json::Value& msg)
+                                   {
+                                       // std::cout << "Received message" << std::endl;
+                                       std::cout << jsonWriter.write(msg) << std::endl;
+                                   });
+                }
+                else if (eventType == ix::CobraConnection_EventType_Subscribed)
+                {
+                    std::cout << "Subscriber: subscribed to channel " << subscriptionId << std::endl;
+                }
+                else if (eventType == ix::CobraConnection_EventType_UnSubscribed)
+                {
+                    std::cout << "Subscriber: unsubscribed from channel " << subscriptionId << std::endl;
+                }
+                else if (eventType == ix::CobraConnection_EventType_Error)
+                {
+                    std::cout << "Subscriber: error" << errMsg << std::endl;
+                }
+            }
+        );
+
+        while (true)
+        {
+            std::chrono::duration<double, std::milli> duration(10);
+            std::this_thread::sleep_for(duration);
+        }
+
+        return 0;
+    }
+}
@@ -0,0 +1,189 @@
+/*
+ *  ws_cobra_to_sentry.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#include <iostream>
+#include <sstream>
+#include <chrono>
+#include <thread>
+#include <atomic>
+#include <vector>
+#include <queue>
+#include <mutex>
+#include <condition_variable>
+#include "IXCobraConnection.h"
+
+#include "IXSentryClient.h"
+
+namespace ix
+{
+    int ws_cobra_to_sentry_main(const std::string& appkey,
+                                const std::string& endpoint,
+                                const std::string& rolename,
+                                const std::string& rolesecret,
+                                const std::string& channel,
+                                const std::string& dsn,
+                                bool verbose,
+                                bool strict,
+                                int jobs)
+    {
+        ix::CobraConnection conn;
+        conn.configure(appkey, endpoint,
+                       rolename, rolesecret,
+                       ix::WebSocketPerMessageDeflateOptions(true));
+        conn.connect();
+
+        Json::FastWriter jsonWriter;
+        std::atomic<uint64_t> sentCount(0);
+        std::atomic<uint64_t> receivedCount(0);
+        std::atomic<bool> errorSending(false);
+        std::atomic<bool> stop(false);
+
+        std::mutex conditionVariableMutex;
+        std::condition_variable condition;
+        std::condition_variable progressCondition;
+        std::queue<Json::Value> queue;
+
+        auto sentrySender = [&condition, &progressCondition, &conditionVariableMutex,
+                             &queue, verbose, &errorSending, &sentCount,
+                             &stop, &dsn]
+        {
+            while (true)
+            {
+                Json::Value msg;
+
+                {
+                    std::unique_lock<std::mutex> lock(conditionVariableMutex);
+                    condition.wait(lock, [&queue, &stop]{ return !queue.empty() && !stop; });
+
+                    msg = queue.front();
+                    queue.pop();
+                }
+
+                SentryClient sc(dsn);
+
+                if (!sc.send(msg, verbose))
+                {
+                    errorSending = true;
+                }
+                else
+                {
+                    ++sentCount;
+                }
+
+                progressCondition.notify_one();
+
+                if (stop) return;
+            }
+        };
+
+        // Create a thread pool
+        std::cerr << "Starting " << jobs << " sentry sender jobs" << std::endl;
+        std::vector<std::thread> pool;
+        for (int i = 0; i < jobs; i++)
+        {
+            pool.push_back(std::thread(sentrySender));
+        }
+
+        conn.setEventCallback(
+            [&conn, &channel, &jsonWriter, 
+             verbose, &receivedCount, &sentCount,
+             &condition, &conditionVariableMutex, 
+             &progressCondition, &queue]
+            (ix::CobraConnectionEventType eventType,
+             const std::string& errMsg,
+             const ix::WebSocketHttpHeaders& headers,
+             const std::string& subscriptionId)
+            {
+                if (eventType == ix::CobraConnection_EventType_Open)
+                {
+                    std::cerr << "Subscriber: connected" << std::endl;
+
+                    for (auto it : headers)
+                    {
+                        std::cerr << it.first << ": " << it.second << std::endl;
+                    }
+                }
+                if (eventType == ix::CobraConnection_EventType_Closed)
+                {
+                    std::cerr << "Subscriber: closed" << std::endl;
+                }
+                else if (eventType == ix::CobraConnection_EventType_Authenticated)
+                {
+                    std::cerr << "Subscriber authenticated" << std::endl;
+                    conn.subscribe(channel,
+                                   [&jsonWriter, verbose, 
+                                    &sentCount, &receivedCount,
+                                    &condition, &conditionVariableMutex,
+                                    &progressCondition, &queue]
+                                   (const Json::Value& msg)
+                                   {
+                                       if (verbose)
+                                       {
+                                           std::cerr << jsonWriter.write(msg) << std::endl;
+                                       }
+
+                                       // If we cannot send to sentry fast enough, drop the message
+                                       const uint64_t scaleFactor = 2;
+
+                                       if (sentCount != 0 &&
+                                           receivedCount != 0 &&
+                                           (sentCount * scaleFactor < receivedCount))
+                                       {
+                                           std::cerr << "message dropped: sending is backlogged !" 
+                                                     << std::endl;
+
+                                           condition.notify_one();
+                                           progressCondition.notify_one();
+                                           return;
+                                       }
+
+                                       ++receivedCount;
+
+                                       {
+                                           std::unique_lock<std::mutex> lock(conditionVariableMutex);
+                                           queue.push(msg);
+                                       }
+
+                                       condition.notify_one();
+                                       progressCondition.notify_one();
+                                   });
+                }
+                else if (eventType == ix::CobraConnection_EventType_Subscribed)
+                {
+                    std::cerr << "Subscriber: subscribed to channel " << subscriptionId << std::endl;
+                }
+                else if (eventType == ix::CobraConnection_EventType_UnSubscribed)
+                {
+                    std::cerr << "Subscriber: unsubscribed from channel " << subscriptionId << std::endl;
+                }
+                else if (eventType == ix::CobraConnection_EventType_Error)
+                {
+                    std::cerr << "Subscriber: error" << errMsg << std::endl;
+                }
+            }
+        );
+
+        std::mutex progressConditionVariableMutex;
+        while (true)
+        {
+            std::unique_lock<std::mutex> lock(progressConditionVariableMutex);
+            progressCondition.wait(lock);
+
+            std::cout << "messages"
+                      << " received " << receivedCount
+                      << " sent " << sentCount
+                      << std::endl;
+
+            if (strict && errorSending) break;
+        }
+
+        conn.disconnect();
+
+        // FIXME: join all the bg threads and stop them.
+
+        return 0;
+    }
+}
@@ -0,0 +1,148 @@
+/*
+ *  ws_cobra_to_statsd.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#include <iostream>
+#include <sstream>
+#include <chrono>
+#include <thread>
+#include <atomic>
+#include <vector>
+#include "IXCobraConnection.h"
+
+#include <statsd_client.h>
+
+namespace ix
+{
+    // fields are command line argument that can be specified multiple times
+    std::vector<std::string> parseFields(const std::string& fields)
+    {
+        std::vector<std::string> tokens;
+
+        // Split by \n
+        std::string token;
+        std::stringstream tokenStream(fields);
+
+        while (std::getline(tokenStream, token))
+        {
+            tokens.push_back(token);
+        }
+
+        return tokens;
+    }
+
+    //
+    // Extract an attribute from a Json Value.
+    // extractAttr("foo.bar", {"foo": {"bar": "baz"}}) => baz
+    //
+    std::string extractAttr(const std::string& attr,
+                            const Json::Value& jsonValue)
+    {
+        // Split by .
+        std::string token;
+        std::stringstream tokenStream(attr);
+
+        Json::Value val(jsonValue);
+
+        int i = 0;
+        while (std::getline(tokenStream, token, '.'))
+        {
+            val = val[token];
+        }
+
+        return val.asString();
+    }
+
+    int ws_cobra_to_statsd_main(const std::string& appkey,
+                                const std::string& endpoint,
+                                const std::string& rolename,
+                                const std::string& rolesecret,
+                                const std::string& channel,
+                                const std::string& host,
+                                int port,
+                                const std::string& prefix,
+                                const std::string& fields,
+                                bool verbose)
+    {
+        ix::CobraConnection conn;
+        conn.configure(appkey, endpoint,
+                       rolename, rolesecret,
+                       ix::WebSocketPerMessageDeflateOptions(true));
+        conn.connect();
+
+        auto tokens = parseFields(fields);
+
+        // statsd client
+        // test with netcat as a server: `nc -ul 8125`
+        bool statsdBatch = true;
+        statsd::StatsdClient statsdClient(host, port, prefix, statsdBatch);
+
+        Json::FastWriter jsonWriter;
+        uint64_t msgCount = 0;
+
+        conn.setEventCallback(
+            [&conn, &channel, &jsonWriter, &statsdClient, verbose, &tokens, &prefix, &msgCount]
+            (ix::CobraConnectionEventType eventType,
+             const std::string& errMsg,
+             const ix::WebSocketHttpHeaders& headers,
+             const std::string& subscriptionId)
+            {
+                if (eventType == ix::CobraConnection_EventType_Open)
+                {
+                    std::cout << "Subscriber: connected" << std::endl;
+                }
+                if (eventType == ix::CobraConnection_EventType_Closed)
+                {
+                    std::cout << "Subscriber: closed" << std::endl;
+                }
+                else if (eventType == ix::CobraConnection_EventType_Authenticated)
+                {
+                    std::cout << "Subscriber authenticated" << std::endl;
+                    conn.subscribe(channel,
+                                   [&jsonWriter, &statsdClient, &channel,
+                                    verbose, &tokens, &prefix, &msgCount]
+                                   (const Json::Value& msg)
+                                   {
+                                       if (verbose)
+                                       {
+                                           std::cout << jsonWriter.write(msg) << std::endl;
+                                       }
+
+                                       std::string id;
+                                       for (auto&& attr : tokens)
+                                       {
+                                           id += ".";
+                                           id += extractAttr(attr, msg);
+                                       }
+
+                                       std::cout << msgCount++ << " " << prefix << id << std::endl;
+
+                                       statsdClient.count(id, 1);
+                                   });
+                }
+                else if (eventType == ix::CobraConnection_EventType_Subscribed)
+                {
+                    std::cout << "Subscriber: subscribed to channel " << subscriptionId << std::endl;
+                }
+                else if (eventType == ix::CobraConnection_EventType_UnSubscribed)
+                {
+                    std::cout << "Subscriber: unsubscribed from channel " << subscriptionId << std::endl;
+                }
+                else if (eventType == ix::CobraConnection_EventType_Error)
+                {
+                    std::cout << "Subscriber: error" << errMsg << std::endl;
+                }
+            }
+        );
+
+        while (true)
+        {
+            std::chrono::duration<double, std::milli> duration(1000);
+            std::this_thread::sleep_for(duration);
+        }
+
+        return 0;
+    }
+}
Author	SHA1	Message	Date
Benjamin Sergeant	b1c1e6e28d	websocket server: closed connection threads are joined properly	2019-04-17 16:23:24 -07:00
Benjamin Sergeant	66440e2330	less buggy server connection per thread system	2019-04-16 22:14:30 -07:00
Benjamin Sergeant	792610d44f	use threads instead of std::async, need to cleanup threads	2019-04-16 18:21:52 -07:00
Benjamin Sergeant	bcf2fc1812	make closeWireSize a default parameter of WebSocketTransport::close	2019-04-16 09:55:12 -07:00
Kumamon38	935e6791a3	close method change and fix code (#28 ) * close method change and fix code * missing mutex	2019-04-16 08:58:34 -07:00
Dimon4eg	fbb7c012a3	fix windows build (#29 ) * fix windows build * fix for Unix * Fix build if TLS is OFF * add OpenSSL req to ws * Fix build on Mac * fix tests for windows	2019-04-16 08:51:57 -07:00
Dimon4eg	dac18fcabf	move security framework linking to ixwebsocket (#26 )	2019-04-14 17:13:24 -07:00
Benjamin Sergeant	d8e83caffc	fix warning	2019-04-13 21:16:04 -07:00
Benjamin Sergeant	fbf80b9f50	ws: new command to subscribe to a cobra server and send an event to a sentry server	2019-04-11 16:03:05 -07:00
Benjamin Sergeant	c2a9139d41	(ws) add subcommands: cobra subscribe, and cobra subscribe to statsd bridge	2019-04-08 21:56:01 -07:00
Benjamin Sergeant	6e3dff149a	linux ci tentative fix	2019-04-03 22:02:10 -07:00
Benjamin Sergeant	1bacbe38f4	better unittest runner / can run through lldb and produce a junit XML artifact	2019-03-29 15:54:05 -07:00
@@ -1 +1 @@
 .3.2
 .4.0