add skeleton and broken http client code.

GET returns "Resource temporarily unavailable" errors...

CMakeLists.txt

@@ -28,6 +28,7 @@ set( IXWEBSOCKET_SOURCES
     ixwebsocket/IXWebSocketPerMessageDeflate.cpp
     ixwebsocket/IXWebSocketPerMessageDeflateCodec.cpp
     ixwebsocket/IXWebSocketPerMessageDeflateOptions.cpp
+    ixwebsocket/IXHttpClient.cpp
 )
 
 set( IXWEBSOCKET_HEADERS
@@ -49,6 +50,7 @@ set( IXWEBSOCKET_HEADERS
     ixwebsocket/IXWebSocketPerMessageDeflateOptions.h
     ixwebsocket/IXWebSocketHttpHeaders.h
     ixwebsocket/libwshandshake.hpp
+    ixwebsocket/IXHttpClient.h
 )
 
 # Platform specific code

examples/http_client/.gitignore

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

examples/http_client/CMakeLists.txt

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

examples/http_client/http_client.cpp

@@ -0,0 +1,32 @@
+/*
+ *  http_client.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#include <iostream>
+#include <sstream>
+#include <ixwebsocket/IXHttpClient.h>
+
+using namespace ix;
+
+void run(const std::string& url)
+{
+    HttpClient httpClient;
+    httpClient.get(url);
+}
+
+
+int main(int argc, char** argv)
+{
+    if (argc != 2)
+    {
+        std::cerr << "Usage: ws_connect <url>" << std::endl;
+        return 1;
+    }
+    std::string url = argv[1];
+
+    Socket::init();
+    run(url);
+    return 0;
+}

ixwebsocket/IXHttpClient.cpp

@@ -0,0 +1,80 @@
+/*
+ *  IXHttpClient.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#include "IXHttpClient.h"
+
+#include <iostream>
+
+namespace ix 
+{
+    HttpClient::HttpClient()
+    {
+
+    }
+
+    HttpClient::~HttpClient()
+    {
+
+    }
+
+    HttpResponse HttpClient::get(const std::string& url)
+    {
+        int code = 0;
+        WebSocketHttpHeaders headers;
+        std::string payload;
+
+        // FIXME: missing url parsing
+
+        std::string host("www.cnn.com");
+        int port = 80;
+        std::string request("GET / HTTP/1.1\r\n\r\n");
+        int expectedStatus = 200;
+        int timeoutSecs = 3;
+
+        std::string errMsg;
+        static std::atomic<bool> requestInitCancellation(false);
+        auto isCancellationRequested =
+            makeCancellationRequestWithTimeout(timeoutSecs, requestInitCancellation);
+
+        bool success = _socket.connect(host, port, errMsg, isCancellationRequested);
+        if (!success)
+        {
+            int code = 0; // 0 ?
+            return std::make_tuple(code, headers, payload);
+        }
+
+        std::cout << "Sending request: " << request
+                  << "to " << host << ":" << port
+                  << std::endl;
+        if (!_socket.writeBytes(request, isCancellationRequested))
+        {
+            int code = 0; // 0 ?
+            return std::make_tuple(code, headers, payload);
+        }
+
+        auto lineResult = _socket.readLine(isCancellationRequested);
+        auto lineValid = lineResult.first;
+        auto line = lineResult.second;
+
+        std::cout << "first line: " << line << std::endl;
+
+        std::cout << "read error: " << strerror(Socket::getErrno()) << std::endl;
+
+        int status = -1;
+        sscanf(line.c_str(), "HTTP/1.1 %d", &status) == 1;
+
+        return std::make_tuple(code, headers, payload);
+    }
+
+    HttpResponse HttpClient::post(const std::string& url)
+    {
+        int code = 0;
+        WebSocketHttpHeaders headers;
+        std::string payload;
+
+        return std::make_tuple(code, headers, payload);
+    }
+}

ixwebsocket/IXHttpClient.h

@@ -0,0 +1,34 @@
+/*
+ *  IXHttpClient.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#pragma once
+
+#include <algorithm>
+#include <functional>
+#include <mutex>
+#include <atomic>
+#include <tuple>
+
+#include "IXSocket.h"
+#include "IXWebSocketHttpHeaders.h"
+
+namespace ix 
+{
+    using HttpResponse = std::tuple<int, WebSocketHttpHeaders, std::string>;
+
+    class HttpClient {
+    public:
+        HttpClient();
+        ~HttpClient();
+
+        // Static methods ?
+        HttpResponse get(const std::string& url);
+        HttpResponse post(const std::string& url);
+
+    private:
+        Socket _socket;
+    };
+}