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			102 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			102 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2022 Jon Beniston, M7RCE <jon@beniston.com>                     //
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//                                                                               //
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// This program is free software; you can redistribute it and/or modify          //
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// it under the terms of the GNU General Public License as published by          //
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// the Free Software Foundation as version 3 of the License, or                  //
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// (at your option) any later version.                                           //
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//                                                                               //
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// This program is distributed in the hope that it will be useful,               //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of                //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                  //
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// GNU General Public License V3 for more details.                               //
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//                                                                               //
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// You should have received a copy of the GNU General Public License             //
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// along with this program. If not, see <http://www.gnu.org/licenses/>.          //
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///////////////////////////////////////////////////////////////////////////////////
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#include <QJsonDocument>
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#include "websocketserver.h"
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WebSocketServer::WebSocketServer(QObject *parent) :
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    QObject(parent),
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    m_socket("", QWebSocketServer::NonSecureMode, this),
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    m_client(nullptr)
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{
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    connect(&m_socket, &QWebSocketServer::newConnection, this, &WebSocketServer::onNewConnection);
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    int port = 0;
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    if (!m_socket.listen(QHostAddress::Any, port)) {
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        qCritical() << "WebSocketServer - Unable to listen on port " << port;
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    }
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}
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quint16 WebSocketServer::serverPort()
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{
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    return m_socket.serverPort();
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}
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void WebSocketServer::onNewConnection()
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{
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    QWebSocket *socket = m_socket.nextPendingConnection();
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    connect(socket, &QWebSocket::textMessageReceived, this, &WebSocketServer::processTextMessage);
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    connect(socket, &QWebSocket::binaryMessageReceived, this, &WebSocketServer::processBinaryMessage);
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    connect(socket, &QWebSocket::disconnected, this, &WebSocketServer::socketDisconnected);
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    m_client = socket;
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    emit connected();
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}
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void WebSocketServer::processTextMessage(QString message)
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{
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    //QWebSocket *client = qobject_cast<QWebSocket *>(sender());
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    //qDebug() << "WebSocketServer::processTextMessage - Received text " << message;
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    QJsonParseError error;
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    QJsonDocument doc = QJsonDocument::fromJson(message.toUtf8(), &error);
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    if (!doc.isNull() && doc.isObject()) {
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        emit received(doc.object());
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    } else {
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        qDebug() << "WebSocketServer::processTextMessage: " << error.errorString();
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    }
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}
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void WebSocketServer::processBinaryMessage(QByteArray message)
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{
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    //QWebSocket *client = qobject_cast<QWebSocket *>(sender());
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    // Shouldn't receive any binary messages for now
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    qDebug() << "WebSocketServer::processBinaryMessage - Received binary " << message;
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}
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void WebSocketServer::socketDisconnected()
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{
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    QWebSocket *client = qobject_cast<QWebSocket *>(sender());
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    if (client) {
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        client->deleteLater();
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        m_client = nullptr;
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    }
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}
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bool WebSocketServer::isConnected()
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{
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    return m_client != nullptr;
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}
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void WebSocketServer::send(const QJsonObject &obj)
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{
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    if (m_client)
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    {
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        QJsonDocument doc(obj);
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        QByteArray bytes = doc.toJson();
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        qint64 bytesSent = m_client->sendTextMessage(bytes);
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        m_client->flush(); // Try to reduce latency
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        if (bytesSent != bytes.size()) {
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            qDebug() << "WebSocketServer::update - Sent only " << bytesSent << " bytes out of " << bytes.size();
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        }
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        //qDebug() << obj;
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    }
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}
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