hyperion.ng/libsrc/jsonserver/JsonClientConnection.h

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#pragma once
// stl includes
#include <string>
// Qt includes
#include <QByteArray>
#include <QTcpSocket>
// jsoncpp includes
#include <json/json.h>
// Hyperion includes
#include <hyperion/Hyperion.h>
// util includes
#include <utils/jsonschema/JsonSchemaChecker.h>
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class ImageProcessor;
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///
/// The Connection object created by \a JsonServer when a new connection is establshed
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///
class JsonClientConnection : public QObject
{
Q_OBJECT
public:
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///
/// Constructor
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/// @param socket The Socket object for this connection
/// @param hyperion The Hyperion server
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///
JsonClientConnection(QTcpSocket * socket, Hyperion * hyperion);
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///
/// Destructor
///
~JsonClientConnection();
signals:
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///
/// Signal which is emitted when the connection is being closed
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/// @param connection This connection object
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///
void connectionClosed(JsonClientConnection * connection);
private slots:
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///
/// Slot called when new data has arrived
///
void readData();
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///
/// Slot called when this connection is being closed
///
void socketClosed();
private:
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///
/// Handle an incoming JSON message
///
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/// @param message the incoming message as string
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///
void handleMessage(const std::string & message);
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///
/// Handle an incoming JSON Color message
///
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/// @param message the incoming message
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///
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void handleColorCommand(const Json::Value & message);
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///
/// Handle an incoming JSON Image message
///
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/// @param message the incoming message
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///
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void handleImageCommand(const Json::Value & message);
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///
/// Handle an incoming JSON Effect message
///
/// @param message the incoming message
///
void handleEffectCommand(const Json::Value & message);
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///
/// Handle an incoming JSON Server info message
///
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/// @param message the incoming message
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///
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void handleServerInfoCommand(const Json::Value & message);
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///
/// Handle an incoming JSON Clear message
///
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/// @param message the incoming message
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///
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void handleClearCommand(const Json::Value & message);
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///
/// Handle an incoming JSON Clearall message
///
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/// @param message the incoming message
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///
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void handleClearallCommand(const Json::Value & message);
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///
/// Handle an incoming JSON Transform message
///
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/// @param message the incoming message
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///
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void handleTransformCommand(const Json::Value & message);
///
/// Handle an incoming JSON Temperature message
///
/// @param message the incoming message
///
void handleTemperatureCommand(const Json::Value & message);
///
/// Handle an incoming JSON Adjustment message
///
/// @param message the incoming message
///
void handleAdjustmentCommand(const Json::Value & message);
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///
/// Handle an incoming JSON message of unknown type
///
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void handleNotImplemented();
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///
/// Send a message to the connected client
///
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/// @param message The JSON message to send
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///
void sendMessage(const Json::Value & message);
void sendMessage(const Json::Value & message, QTcpSocket * socket);
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///
/// Send a standard reply indicating success
///
void sendSuccessReply();
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///
/// Send an error message back to the client
///
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/// @param error String describing the error
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///
void sendErrorReply(const std::string & error);
///
/// Do handshake for a websocket connection
///
void doWebSocketHandshake();
///
/// Handle incoming websocket data frame
///
void handleWebSocketFrame();
///
/// forward json message
///
void forwardJsonMessage(const Json::Value & message);
private:
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///
/// Check if a JSON messag is valid according to a given JSON schema
///
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/// @param message JSON message which need to be checked
/// @param schemaResource Qt esource identifier with the JSON schema
/// @param errors Output error message
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///
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/// @return true if message conforms the given JSON schema
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///
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bool checkJson(const Json::Value & message, const QString &schemaResource, std::string & errors);
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private:
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/// The TCP-Socket that is connected tot the Json-client
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QTcpSocket * _socket;
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/// The processor for translating images to led-values
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ImageProcessor * _imageProcessor;
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/// Link to Hyperion for writing led-values to a priority channel
Hyperion * _hyperion;
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/// The buffer used for reading data from the socket
QByteArray _receiveBuffer;
/// used for WebSocket detection and connection handling
bool _webSocketHandshakeDone;
};