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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtWebSockets module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QWEBSOCKETFRAME_P_H
#define QWEBSOCKETFRAME_P_H
#include <QString>
#include <QByteArray>
#include <limits.h>
#include "qwebsocketprotocol.h"
#include "qwebsockets_global.h"
QT_BEGIN_NAMESPACE
class QIODevice;
const quint64 MAX_FRAME_SIZE_IN_BYTES = INT_MAX - 1;
const quint64 MAX_MESSAGE_SIZE_IN_BYTES = INT_MAX - 1;
class Q_AUTOTEST_EXPORT QWebSocketFrame
{
public:
QWebSocketFrame();
QWebSocketFrame(const QWebSocketFrame &other);
QWebSocketFrame &operator =(const QWebSocketFrame &other);
QWebSocketProtocol::CloseCode closeCode() const;
QString closeReason() const;
bool isFinalFrame() const;
bool isControlFrame() const;
bool isDataFrame() const;
bool isContinuationFrame() const;
bool hasMask() const;
quint32 mask() const; //returns 0 if no mask
int rsv1() const;
int rsv2() const;
int rsv3() const;
QWebSocketProtocol::OpCode opCode() const;
QByteArray payload() const;
void clear(); //resets all member variables, and invalidates the object
bool isValid() const;
static QWebSocketFrame readFrame(QIODevice *pIoDevice);
private:
QWebSocketProtocol::CloseCode m_closeCode;
QString m_closeReason;
bool m_isFinalFrame;
quint32 m_mask;
int m_rsv1; //reserved field 1
int m_rsv2; //reserved field 2
int m_rsv3; //reserved field 3
QWebSocketProtocol::OpCode m_opCode;
quint8 m_length; //length field as read from the header; this is 1 byte, which when 126 or 127, indicates a large payload
QByteArray m_payload;
bool m_isValid;
enum ProcessingState
{
PS_READ_HEADER,
PS_READ_PAYLOAD_LENGTH,
PS_READ_BIG_PAYLOAD_LENGTH,
PS_READ_MASK,
PS_READ_PAYLOAD,
PS_DISPATCH_RESULT,
PS_WAIT_FOR_MORE_DATA
};
void setError(QWebSocketProtocol::CloseCode code, QString closeReason);
bool checkValidity();
};
QT_END_NAMESPACE
#endif // QWEBSOCKETFRAME_P_H
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