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https://github.com/crystalidea/qt6windows7.git
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81 lines
2.9 KiB
C++
81 lines
2.9 KiB
C++
// Copyright (C) 2021 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include <QtCore>
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#include <QtNetwork>
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const int timeout = 60 * 1000;
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int main(int argc, char **argv)
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{
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QCoreApplication app(argc, argv);
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QTcpServer server;
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QObject::connect(&server, &QTcpServer::newConnection, [&server](){
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qDebug() << "new connection";
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QByteArray *receiveBuffer = new QByteArray();
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QTcpSocket *socket = server.nextPendingConnection();
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QObject::connect(socket, &QIODevice::readyRead, [socket, receiveBuffer](){
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// This implements a very simple command protocol, where the server
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// processes a stream of commands delimited by ';', and then performs
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// an action in reply. The supported commands with actions are:
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//
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// echo:<message>; writes the received <message> back
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// close; closes the socket
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//
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// We might receive multiple or partial commands; read all available data
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// and then scan the buffer for complete commands.
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QByteArray newData = socket->readAll();
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*receiveBuffer += newData;
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int pos = receiveBuffer->indexOf(";");
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while (pos != -1) {
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QByteArray command = receiveBuffer->left(pos);
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receiveBuffer->remove(0, pos + 1);
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pos = receiveBuffer->indexOf(";");
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if (command.startsWith("echo")) {
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// Echo expects echo:<message>
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QList<QByteArray> parts = command.split(':');
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QByteArray reply = parts.last() + ';';
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qDebug() << "Command: echo:" << parts.last();
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socket->write(reply);
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socket->flush();
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} else if (command.startsWith("close")) {
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qDebug() << "Command: close";
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socket->write("bye!;");
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socket->flush();
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socket->close();
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break;
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} else {
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qDebug() << "Unknown command:" << command;
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}
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}
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});
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QObject::connect(socket, &QAbstractSocket::disconnected, [socket, receiveBuffer](){
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delete receiveBuffer;
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socket->deleteLater();
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});
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});
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// This is example is intended to be used together with WebSockify on
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// the server and acts as a counterpart to the client examples which
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// run in the browser. (This example does not run in the browser).
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qDebug() << "\nStarting echo server at port 1516. You should now start the"
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<< "\nWebSockify forwarding server, and then connect from one of"
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<< "\nthe client examples."
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<< "\n websockify 1515 localhost:1516";
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server.listen(QHostAddress::Any, 1516);
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return app.exec();
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}
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