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/ProtoClientConnection.h

@@ -0,0 +1,135 @@
+#pragma once
+
+// util
+#include <utils/Logger.h>
+#include <utils/Image.h>
+#include <utils/ColorRgb.h>
+#include <utils/Components.h>
+
+// protobuffer PROTO
+#include "message.pb.h"
+
+class QTcpSocket;
+class QTimer;
+class Hyperion;
+
+namespace proto {
+class HyperionRequest;
+}
+
+///
+/// The Connection object created by a ProtoServer when a new connection is established
+///
+class ProtoClientConnection : public QObject
+{
+	Q_OBJECT
+
+public:
+	///
+	/// @brief Construct the client
+	/// @param socket   The socket
+	/// @param timeout  The timeout when a client is automatically disconnected and the priority unregistered
+	/// @param parent   The parent
+	///
+	explicit ProtoClientConnection(QTcpSocket* socket, const int &timeout, QObject *parent);
+
+signals:
+	///
+	/// @brief Emits whenever the client disconnected
+	///
+	void clientDisconnected();
+
+public slots:
+	///
+	/// @brief close the socket and call disconnected()
+	///
+	void forceClose();
+
+private slots:
+	///
+	/// @brief Is called whenever the socket got new data to read
+	///
+	void readyRead();
+
+	///
+	/// @brief Is called when the socket closed the connection, also requests thread exit
+	///
+	void disconnected();
+
+private:
+	///
+	/// Handle an incoming Proto message
+	///
+	/// @param message the incoming message as string
+	///
+	void handleMessage(const proto::HyperionRequest &message);
+
+	///
+	/// Handle an incoming Proto Color message
+	///
+	/// @param message the incoming message
+	///
+	void handleColorCommand(const proto::ColorRequest & message);
+
+	///
+	/// Handle an incoming Proto Image message
+	///
+	/// @param message the incoming message
+	///
+	void handleImageCommand(const proto::ImageRequest & message);
+
+	///
+	/// Handle an incoming Proto Clear message
+	///
+	/// @param message the incoming message
+	///
+	void handleClearCommand(const proto::ClearRequest & message);
+
+	///
+	/// Handle an incoming Proto Clearall message
+	///
+	void handleClearallCommand();
+
+	///
+	/// Handle an incoming Proto message of unknown type
+	///
+	void handleNotImplemented();
+
+	///
+	/// Send a message to the connected client
+	///
+	/// @param message The Proto message to send
+	///
+	void sendMessage(const google::protobuf::Message &message);
+
+	///
+	/// Send a standard reply indicating success
+	///
+	void sendSuccessReply();
+
+	///
+	/// Send an error message back to the client
+	///
+	/// @param error String describing the error
+	///
+	void sendErrorReply(const std::string & error);
+
+private:
+	Logger*_log;
+
+	/// The TCP-Socket that is connected tot the Proto-client
+	QTcpSocket* _socket;
+
+	/// address of client
+	const QString _clientAddress;
+
+	QTimer*_timeoutTimer;
+	int _timeout;
+	int _priority;
+
+	/// Link to Hyperion for writing led-values to a priority channel
+	Hyperion* _hyperion;
+
+	/// The buffer used for reading data from the socket
+	QByteArray _receiveBuffer;
+};