ProtoBuffer, UDPListener ...

Protocol Buffer reimplemented to receive image data from third-party apps
The status of the component "UDPListener" is now displayed correctly in WebUI
Global signal names for WebUI added

libsrc/protoserver/ProtoServer.cpp

@@ -0,0 +1,104 @@
+#include <protoserver/ProtoServer.h>
+#include "ProtoClientConnection.h"
+
+// qt
+#include <QJsonObject>
+#include <QTcpServer>
+#include <QTcpSocket>
+
+ProtoServer::ProtoServer(const QJsonDocument& config, QObject* parent)
+	: QObject(parent)
+	, _server(new QTcpServer(this))
+	, _log(Logger::getInstance("PROTOSERVER"))
+	, _timeout(5000)
+	, _config(config)
+{
+
+}
+
+ProtoServer::~ProtoServer()
+{
+	stopServer();
+	delete _server;
+}
+
+void ProtoServer::initServer()
+{
+	connect(_server, &QTcpServer::newConnection, this, &ProtoServer::newConnection);
+
+	// apply config
+	handleSettingsUpdate(settings::PROTOSERVER, _config);
+}
+
+void ProtoServer::handleSettingsUpdate(const settings::type& type, const QJsonDocument& config)
+{
+	if(type == settings::PROTOSERVER)
+	{
+		const QJsonObject& obj = config.object();
+
+		quint16 port = obj["port"].toInt(19445);
+
+		// port check
+		if(_server->serverPort() != port)
+		{
+			stopServer();
+			_port = port;
+		}
+
+		// new timeout just for new connections
+		_timeout = obj["timeout"].toInt(5000);
+		// enable check
+		obj["enable"].toBool(true) ? startServer() : stopServer();
+	}
+}
+
+void ProtoServer::newConnection()
+{
+	while(_server->hasPendingConnections())
+	{
+		if(QTcpSocket * socket = _server->nextPendingConnection())
+		{
+			Debug(_log, "New connection from %s", QSTRING_CSTR(socket->peerAddress().toString()));
+			ProtoClientConnection * client = new ProtoClientConnection(socket, _timeout, this);
+			// internal
+			connect(client, &ProtoClientConnection::clientDisconnected, this, &ProtoServer::clientDisconnected);
+			_openConnections.append(client);
+		}
+	}
+}
+
+void ProtoServer::clientDisconnected()
+{
+	ProtoClientConnection* client = qobject_cast<ProtoClientConnection*>(sender());
+	client->deleteLater();
+	_openConnections.removeAll(client);
+}
+
+void ProtoServer::startServer()
+{
+	if(!_server->isListening())
+	{
+		if(!_server->listen(QHostAddress::Any, _port))
+		{
+		Error(_log,"Failed to bind port %d", _port);
+		}
+		else
+		{
+		Info(_log,"Started on port %d", _port);
+		}
+	}
+}
+
+void ProtoServer::stopServer()
+{
+	if(_server->isListening())
+	{
+		// close client connections
+		for(const auto& client : _openConnections)
+		{
+			client->forceClose();
+		}
+		_server->close();
+		Info(_log, "Stopped");
+	}
+}