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/*
QWebSockets implements the WebSocket protocol as defined in RFC 6455.
Copyright (C) 2013 Kurt Pattyn (pattyn.kurt@gmail.com)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef DATAPROCESSOR_P_H
#define DATAPROCESSOR_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QObject>
#include <QByteArray>
#include <QString>
#include <QTextCodec>
#include "qwebsocketprotocol.h"
QT_BEGIN_NAMESPACE
class QIODevice;
class Frame;
/*!
\internal
The DataProcessor class reads and interprets incoming websocket messages, and emits appropriate signals.
*/
class DataProcessor: public QObject
{
Q_OBJECT
public:
explicit DataProcessor(QObject *parent = 0);
virtual ~DataProcessor();
static quint64 maxMessageSize();
static quint64 maxFrameSize();
Q_SIGNALS:
void pingReceived(QByteArray data);
void pongReceived(QByteArray data);
void closeReceived(QWebSocketProtocol::CloseCode closeCode, QString closeReason);
void textFrameReceived(QString frame, bool lastFrame);
void binaryFrameReceived(QByteArray frame, bool lastFrame);
void textMessageReceived(QString message);
void binaryMessageReceived(QByteArray message);
void errorEncountered(QWebSocketProtocol::CloseCode code, QString description);
public Q_SLOTS:
void process(QIODevice *pIoDevice);
void clear();
private:
Q_DISABLE_COPY(DataProcessor)
enum
{
PS_READ_HEADER,
PS_READ_PAYLOAD_LENGTH,
PS_READ_BIG_PAYLOAD_LENGTH,
PS_READ_MASK,
PS_READ_PAYLOAD,
PS_DISPATCH_RESULT
} m_processingState;
bool m_isFinalFrame;
bool m_isFragmented;
QWebSocketProtocol::OpCode m_opCode;
bool m_isControlFrame;
bool m_hasMask;
quint32 m_mask;
QByteArray m_binaryMessage;
QString m_textMessage;
quint64 m_payloadLength;
QTextCodec::ConverterState *m_pConverterState;
QTextCodec *m_pTextCodec;
bool processControlFrame(const Frame &frame);
};
QT_END_NAMESPACE
#endif // DATAPROCESSOR_P_H
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