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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 Qt Creator.
**
** 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.
**
****************************************************************************/
#ifndef SSHCHANNEL_P_H
#define SSHCHANNEL_P_H
#include <QByteArray>
#include <QObject>
#include <QString>
QT_FORWARD_DECLARE_CLASS(QTimer)
namespace QSsh {
namespace Internal {
struct SshChannelExitSignal;
struct SshChannelExitStatus;
class SshIncomingPacket;
class SshSendFacility;
class AbstractSshChannel : public QObject
{
Q_OBJECT
public:
enum ChannelState {
Inactive, SessionRequested, SessionEstablished, CloseRequested, Closed
};
ChannelState channelState() const { return m_state; }
void setChannelState(ChannelState state);
quint32 localChannelId() const { return m_localChannel; }
quint32 remoteChannel() const { return m_remoteChannel; }
virtual void handleChannelSuccess() = 0;
virtual void handleChannelFailure() = 0;
virtual void closeHook() = 0;
void handleOpenSuccess(quint32 remoteChannelId, quint32 remoteWindowSize,
quint32 remoteMaxPacketSize);
void handleOpenFailure(const QString &reason);
void handleWindowAdjust(quint32 bytesToAdd);
void handleChannelEof();
void handleChannelClose();
void handleChannelData(const QByteArray &data);
void handleChannelExtendedData(quint32 type, const QByteArray &data);
void handleChannelRequest(const SshIncomingPacket &packet);
void requestSessionStart();
void sendData(const QByteArray &data);
void closeChannel();
virtual ~AbstractSshChannel();
static const int ReplyTimeout = 10000; // milli seconds
signals:
void timeout();
protected:
AbstractSshChannel(quint32 channelId, SshSendFacility &sendFacility);
quint32 maxDataSize() const;
void checkChannelActive();
SshSendFacility &m_sendFacility;
QTimer * const m_timeoutTimer;
private:
virtual void handleOpenSuccessInternal() = 0;
virtual void handleOpenFailureInternal(const QString &reason) = 0;
virtual void handleChannelDataInternal(const QByteArray &data) = 0;
virtual void handleChannelExtendedDataInternal(quint32 type,
const QByteArray &data) = 0;
virtual void handleExitStatus(const SshChannelExitStatus &exitStatus) = 0;
virtual void handleExitSignal(const SshChannelExitSignal &signal) = 0;
void setState(ChannelState newState);
void flushSendBuffer();
int handleChannelOrExtendedChannelData(const QByteArray &data);
const quint32 m_localChannel;
quint32 m_remoteChannel;
quint32 m_localWindowSize;
quint32 m_remoteWindowSize;
quint32 m_remoteMaxPacketSize;
ChannelState m_state;
QByteArray m_sendBuffer;
};
} // namespace Internal
} // namespace QSsh
#endif // SSHCHANNEL_P_H
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