127 lines
5.9 KiB
C++
127 lines
5.9 KiB
C++
/*
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* ws_transfer.cpp
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* Author: Benjamin Sergeant
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* Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
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*/
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#include <iostream>
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#include <ixwebsocket/IXWebSocketServer.h>
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#include <sstream>
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namespace ix
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{
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int ws_transfer_main(int port,
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const std::string& hostname,
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const ix::SocketTLSOptions& tlsOptions)
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{
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std::cout << "ws_transfer: Listening on " << hostname << ":" << port << std::endl;
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ix::WebSocketServer server(port, hostname);
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server.setTLSOptions(tlsOptions);
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server.setOnConnectionCallback([&server](std::shared_ptr<ix::WebSocket> webSocket,
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std::shared_ptr<ConnectionState> connectionState) {
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webSocket->setOnMessageCallback([webSocket, connectionState, &server](
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const WebSocketMessagePtr& msg) {
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if (msg->type == ix::WebSocketMessageType::Open)
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{
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std::cerr << "ws_transfer: New connection" << std::endl;
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std::cerr << "id: " << connectionState->getId() << std::endl;
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std::cerr << "Uri: " << msg->openInfo.uri << std::endl;
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std::cerr << "Headers:" << std::endl;
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for (auto it : msg->openInfo.headers)
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{
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std::cerr << it.first << ": " << it.second << std::endl;
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}
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}
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else if (msg->type == ix::WebSocketMessageType::Close)
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{
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std::cerr << "ws_transfer: [client " << connectionState->getId()
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<< "]: Closed connection, code " << msg->closeInfo.code << " reason "
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<< msg->closeInfo.reason << std::endl;
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auto remaining = server.getClients().erase(webSocket);
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std::cerr << "ws_transfer: " << remaining << " remaining clients " << std::endl;
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}
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else if (msg->type == ix::WebSocketMessageType::Error)
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{
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std::stringstream ss;
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ss << "ws_transfer: Connection error: " << msg->errorInfo.reason << std::endl;
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ss << "#retries: " << msg->errorInfo.retries << std::endl;
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ss << "Wait time(ms): " << msg->errorInfo.wait_time << std::endl;
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ss << "HTTP Status: " << msg->errorInfo.http_status << std::endl;
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std::cerr << ss.str();
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}
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else if (msg->type == ix::WebSocketMessageType::Fragment)
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{
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std::cerr << "ws_transfer: Received message fragment " << std::endl;
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}
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else if (msg->type == ix::WebSocketMessageType::Message)
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{
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std::cerr << "ws_transfer: Received " << msg->wireSize << " bytes" << std::endl;
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size_t receivers = 0;
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for (auto&& client : server.getClients())
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{
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if (client != webSocket)
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{
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auto readyState = client->getReadyState();
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if (readyState == ReadyState::Open)
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{
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++receivers;
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client->send(msg->str,
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msg->binary,
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[id = connectionState->getId()](int current,
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int total) -> bool {
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std::cerr << "ws_transfer: [client " << id
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<< "]: Step " << current << " out of "
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<< total << std::endl;
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return true;
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});
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do
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{
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size_t bufferedAmount = client->bufferedAmount();
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std::cerr << "ws_transfer: [client " << connectionState->getId()
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<< "]: " << bufferedAmount
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<< " bytes left to be sent, " << std::endl;
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std::this_thread::sleep_for(std::chrono::milliseconds(500));
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} while (client->bufferedAmount() != 0 &&
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client->getReadyState() == ReadyState::Open);
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}
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else
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{
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std::string readyStateString =
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readyState == ReadyState::Connecting
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? "Connecting"
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: readyState == ReadyState::Closing ? "Closing" : "Closed";
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size_t bufferedAmount = client->bufferedAmount();
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std::cerr << "ws_transfer: [client " << connectionState->getId()
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<< "]: has readystate '" << readyStateString << "' and "
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<< bufferedAmount << " bytes left to be sent, "
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<< std::endl;
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}
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}
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}
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if (!receivers)
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{
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std::cerr << "ws_transfer: no remaining receivers" << std::endl;
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}
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}
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});
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});
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auto res = server.listen();
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if (!res.first)
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{
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std::cerr << res.second << std::endl;
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return 1;
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}
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server.start();
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server.wait();
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return 0;
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}
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} // namespace ix
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