add ws_chat and ws_connect sub commands to ws

ws/ws_connect.cpp

@@ -0,0 +1,159 @@
+/*
+ *  ws_connect.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2017-2018 Machine Zone, Inc. All rights reserved.
+ */
+
+#include <iostream>
+#include <sstream>
+#include <ixwebsocket/IXWebSocket.h>
+#include <ixwebsocket/IXSocket.h>
+
+namespace ix
+{
+    class WebSocketConnect
+    {
+        public:
+            WebSocketConnect(const std::string& _url);
+
+            void subscribe(const std::string& channel);
+            void start();
+            void stop();
+
+            void sendMessage(const std::string& text);
+
+        private:
+            std::string _url;
+            ix::WebSocket _webSocket;
+
+            void log(const std::string& msg);
+    };
+
+    WebSocketConnect::WebSocketConnect(const std::string& url) :
+        _url(url)
+    {
+        ;
+    }
+
+    void WebSocketConnect::log(const std::string& msg)
+    {
+        std::cout << msg << std::endl;
+    }
+
+    void WebSocketConnect::stop()
+    {
+        _webSocket.stop();
+    }
+
+    void WebSocketConnect::start()
+    {
+        _webSocket.setUrl(_url);
+
+        ix::WebSocketPerMessageDeflateOptions webSocketPerMessageDeflateOptions(
+            true, false, false, 15, 15);
+        _webSocket.setPerMessageDeflateOptions(webSocketPerMessageDeflateOptions);
+
+        std::stringstream ss;
+        log(std::string("Connecting to url: ") + _url);
+
+        _webSocket.setOnMessageCallback(
+            [this](ix::WebSocketMessageType messageType,
+               const std::string& str,
+               size_t wireSize,
+               const ix::WebSocketErrorInfo& error,
+               const ix::WebSocketOpenInfo& openInfo,
+               const ix::WebSocketCloseInfo& closeInfo)
+            {
+                std::stringstream ss;
+                if (messageType == ix::WebSocket_MessageType_Open)
+                {
+                    log("ws_connect: connected");
+                    std::cout << "Uri: " << openInfo.uri << std::endl;
+                    std::cout << "Handshake Headers:" << std::endl;
+                    for (auto it : openInfo.headers)
+                    {
+                        std::cout << it.first << ": " << it.second << std::endl;
+                    }
+                }
+                else if (messageType == ix::WebSocket_MessageType_Close)
+                {
+                    ss << "ws_connect: connection closed:";
+                    ss << " code " << closeInfo.code;
+                    ss << " reason " << closeInfo.reason << std::endl;
+                    log(ss.str());
+                }
+                else if (messageType == ix::WebSocket_MessageType_Message)
+                {
+                    ss << "ws_connect: received message: "
+                       << str;
+                    log(ss.str());
+                }
+                else if (messageType == ix::WebSocket_MessageType_Error)
+                {
+                    ss << "Connection error: " << error.reason      << std::endl;
+                    ss << "#retries: "         << error.retries     << std::endl;
+                    ss << "Wait time(ms): "    << error.wait_time   << std::endl;
+                    ss << "HTTP Status: "      << error.http_status << std::endl;
+                    log(ss.str());
+                }
+                else
+                {
+                    ss << "Invalid ix::WebSocketMessageType";
+                    log(ss.str());
+                }
+            });
+
+        _webSocket.start();
+    }
+
+    void WebSocketConnect::sendMessage(const std::string& text)
+    {
+        _webSocket.send(text);
+    }
+
+    void interactiveMain(const std::string& url)
+    {
+        std::cout << "Type Ctrl-D to exit prompt..." << std::endl;
+        WebSocketConnect webSocketChat(url);
+        webSocketChat.start();
+
+        while (true)
+        {
+            std::string text;
+            std::cout << "> " << std::flush;
+            std::getline(std::cin, text);
+
+            if (text == "/stop")
+            {
+                std::cout << "Stopping connection..." << std::endl;
+                webSocketChat.stop();
+                continue;
+            }
+
+            if (text == "/start")
+            {
+                std::cout << "Starting connection..." << std::endl;
+                webSocketChat.start();
+                continue;
+            }
+
+            if (!std::cin)
+            {
+                break;
+            }
+
+            webSocketChat.sendMessage(text);
+        }
+
+        std::cout << std::endl;
+        webSocketChat.stop();
+    }
+
+    int ws_connect_main(const std::string& url)
+    {
+        Socket::init();
+        interactiveMain(url);
+        return 0;
+    }
+}
+