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sdrangel/plugins/feature/map/mapwebsocketserver.cpp

101 lines
3.8 KiB
C++

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