hyperion.ng/libsrc/jsonserver/JsonClientConnection.h
redPanther 9428586195 Json write (#313)
* always output latest version of config file to webui

* fix permissions after default config export

* tune code

* set permissions for exported effects

* use qt setperm instead of chmod
update effects code style a bit

* add fallback when config is not readable

* ui: when sending config, convert to utf8 to save size and avoid jumbo frames (todo: minify it)
jsonclient: add some constants for websocket frames (taken from https://github.com/zaphoyd/websocketpp/blob/master/websocketpp/frame.hpp)

* webui:
refactory of websocket connector
sended json data is always convert to utf8
2016-12-05 11:10:44 +01:00

342 lines
8.6 KiB
C++

#pragma once
// stl includes
#include <string>
// Qt includes
#include <QByteArray>
#include <QTcpSocket>
// Hyperion includes
#include <hyperion/Hyperion.h>
// util includes
#include <utils/jsonschema/QJsonSchemaChecker.h>
#include <utils/Logger.h>
#include <utils/Components.h>
class ImageProcessor;
/// Constants and utility functions related to WebSocket opcodes
/**
* WebSocket Opcodes are 4 bits. See RFC6455 section 5.2.
*/
namespace OPCODE {
enum value {
CONTINUATION = 0x0,
TEXT = 0x1,
BINARY = 0x2,
RSV3 = 0x3,
RSV4 = 0x4,
RSV5 = 0x5,
RSV6 = 0x6,
RSV7 = 0x7,
CLOSE = 0x8,
PING = 0x9,
PONG = 0xA,
CONTROL_RSVB = 0xB,
CONTROL_RSVC = 0xC,
CONTROL_RSVD = 0xD,
CONTROL_RSVE = 0xE,
CONTROL_RSVF = 0xF
};
/// Check if an opcode is reserved
/**
* @param v The opcode to test.
* @return Whether or not the opcode is reserved.
*/
inline bool reserved(value v) {
return (v >= RSV3 && v <= RSV7) || (v >= CONTROL_RSVB && v <= CONTROL_RSVF);
}
/// Check if an opcode is invalid
/**
* Invalid opcodes are negative or require greater than 4 bits to store.
*
* @param v The opcode to test.
* @return Whether or not the opcode is invalid.
*/
inline bool invalid(value v) {
return (v > 0xF || v < 0);
}
/// Check if an opcode is for a control frame
/**
* @param v The opcode to test.
* @return Whether or not the opcode is a control opcode.
*/
inline bool is_control(value v) {
return v >= 0x8;
}
}
///
/// The Connection object created by \a JsonServer when a new connection is establshed
///
class JsonClientConnection : public QObject
{
Q_OBJECT
public:
///
/// Constructor
/// @param socket The Socket object for this connection
/// @param hyperion The Hyperion server
///
JsonClientConnection(QTcpSocket * socket);
///
/// Destructor
///
~JsonClientConnection();
public slots:
void componentStateChanged(const hyperion::Components component, bool enable);
void streamLedcolorsUpdate();
void incommingLogMessage(Logger::T_LOG_MESSAGE);
signals:
///
/// Signal which is emitted when the connection is being closed
/// @param connection This connection object
///
void connectionClosed(JsonClientConnection * connection);
private slots:
///
/// Slot called when new data has arrived
///
void readData();
///
/// Slot called when this connection is being closed
///
void socketClosed();
private:
///
/// Handle an incoming JSON message
///
/// @param message the incoming message as string
///
void handleMessage(const QString & message);
///
/// Handle an incoming JSON Color message
///
/// @param message the incoming message
///
void handleColorCommand(const QJsonObject & message, const QString &command, const int tan);
///
/// Handle an incoming JSON Image message
///
/// @param message the incoming message
///
void handleImageCommand(const QJsonObject & message, const QString &command, const int tan);
///
/// Handle an incoming JSON Effect message
///
/// @param message the incoming message
///
void handleEffectCommand(const QJsonObject & message, const QString &command, const int tan);
///
/// Handle an incoming JSON Effect message (Write JSON Effect)
///
/// @param message the incoming message
///
void handleCreateEffectCommand(const QJsonObject & message, const QString &command, const int tan);
///
/// Handle an incoming JSON Effect message (Delete JSON Effect)
///
/// @param message the incoming message
///
void handleDeleteEffectCommand(const QJsonObject & message, const QString &command, const int tan);
///
/// Handle an incoming JSON Server info message
///
/// @param message the incoming message
///
void handleServerInfoCommand(const QJsonObject & message, const QString &command, const int tan);
///
/// Handle an incoming JSON Clear message
///
/// @param message the incoming message
///
void handleClearCommand(const QJsonObject & message, const QString &command, const int tan);
///
/// Handle an incoming JSON Clearall message
///
/// @param message the incoming message
///
void handleClearallCommand(const QJsonObject & message, const QString &command, const int tan);
///
/// Handle an incoming JSON Transform message
///
/// @param message the incoming message
///
void handleTransformCommand(const QJsonObject & message, const QString &command, const int tan);
///
/// Handle an incoming JSON Adjustment message
///
/// @param message the incoming message
///
void handleAdjustmentCommand(const QJsonObject & message, const QString &command, const int tan);
///
/// Handle an incoming JSON SourceSelect message
///
/// @param message the incoming message
///
void handleSourceSelectCommand(const QJsonObject & message, const QString &command, const int tan);
/// Handle an incoming JSON GetConfig message
///
/// @param message the incoming message
///
void handleConfigCommand(const QJsonObject & message, const QString &command, const int tan);
/// Handle an incoming JSON GetConfig message
///
/// @param message the incoming message
///
void handleSchemaGetCommand(const QJsonObject & message, const QString &command, const int tan);
/// Handle an incoming JSON GetConfig message
///
/// @param message the incoming message
///
void handleConfigGetCommand(const QJsonObject & message, const QString &command, const int tan);
///
/// Handle an incoming JSON SetConfig message
///
void handleConfigSetCommand(const QJsonObject & message, const QString &command, const int tan);
///
/// Handle an incoming JSON Component State message
///
/// @param message the incoming message
///
void handleComponentStateCommand(const QJsonObject & message, const QString &command, const int tan);
/// Handle an incoming JSON Led Colors message
///
/// @param message the incoming message
///
void handleLedColorsCommand(const QJsonObject & message, const QString &command, const int tan);
/// Handle an incoming JSON Logging message
///
/// @param message the incoming message
///
void handleLoggingCommand(const QJsonObject & message, const QString &command, const int tan);
///
/// Handle an incoming JSON message of unknown type
///
void handleNotImplemented();
///
/// Send a message to the connected client
///
/// @param message The JSON message to send
///
void sendMessage(const QJsonObject & message);
void sendMessage(const QJsonObject & message, QTcpSocket * socket);
///
/// Send a standard reply indicating success
///
void sendSuccessReply(const QString &command="", const int tan=0);
///
/// Send an error message back to the client
///
/// @param error String describing the error
///
void sendErrorReply(const QString & error, const QString &command="", const int tan=0);
///
/// Do handshake for a websocket connection
///
void doWebSocketHandshake();
///
/// Handle incoming websocket data frame
///
void handleWebSocketFrame();
///
/// forward json message
///
void forwardJsonMessage(const QJsonObject & message);
///
/// Check if a JSON messag is valid according to a given JSON schema
///
/// @param message JSON message which need to be checked
/// @param schemaResource Qt Resource identifier with the JSON schema
/// @param errors Output error message
/// @param ignoreRequired ignore the required value in JSON schema
///
/// @return true if message conforms the given JSON schema
///
bool checkJson(const QJsonObject & message, const QString &schemaResource, QString & errors, bool ignoreRequired = false);
/// The TCP-Socket that is connected tot the Json-client
QTcpSocket * _socket;
/// The processor for translating images to led-values
ImageProcessor * _imageProcessor;
/// Link to Hyperion for writing led-values to a priority channel
Hyperion * _hyperion;
/// The buffer used for reading data from the socket
QByteArray _receiveBuffer;
/// used for WebSocket detection and connection handling
bool _webSocketHandshakeDone;
/// The logger instance
Logger * _log;
/// Flag if forwarder is enabled
bool _forwarder_enabled;
/// timer for ledcolors streaming
QTimer _timer_ledcolors;
// streaming buffers
QJsonObject _streaming_leds_reply;
QJsonObject _streaming_logging_reply;
bool _streaming_logging_activated;
// masks for fields in the basic header
static uint8_t const BHB0_OPCODE = 0x0F;
static uint8_t const BHB0_RSV3 = 0x10;
static uint8_t const BHB0_RSV2 = 0x20;
static uint8_t const BHB0_RSV1 = 0x40;
static uint8_t const BHB0_FIN = 0x80;
static uint8_t const BHB1_PAYLOAD = 0x7F;
static uint8_t const BHB1_MASK = 0x80;
static uint8_t const payload_size_code_16bit = 0x7E; // 126
static uint8_t const payload_size_code_64bit = 0x7F; // 127
};