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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#ifndef SSHCONNECTION_P_H
#define SSHCONNECTION_P_H
#include "sshconnection.h"
#include "sshexception_p.h"
#include "sshincomingpacket_p.h"
#include "sshremoteprocess.h"
#include "sshsendfacility_p.h"
#include <QtCore/QHash>
#include <QtCore/QList>
#include <QtCore/QObject>
#include <QtCore/QPair>
#include <QtCore/QScopedPointer>
#include <QtCore/QTimer>
QT_BEGIN_NAMESPACE
class QTcpSocket;
QT_END_NAMESPACE
namespace Botan { class Exception; }
namespace Utils {
class SftpChannel;
namespace Internal {
class SshChannelManager;
// NOTE: When you add stuff here, don't forget to update m_packetHandlers.
enum SshStateInternal {
SocketUnconnected, // initial and after disconnect
SocketConnecting, // After connectToHost()
SocketConnected, // After socket's connected() signal
UserAuthServiceRequested,
UserAuthRequested,
ConnectionEstablished // After service has been started
// ...
};
enum SshKeyExchangeState {
NoKeyExchange,
KexInitSent,
DhInitSent,
NewKeysSent,
KeyExchangeSuccess // After server's DH_REPLY message
};
class SshConnectionPrivate : public QObject
{
Q_OBJECT
friend class Utils::SshConnection;
public:
SshConnectionPrivate(SshConnection *conn,
const SshConnectionParameters &serverInfo);
~SshConnectionPrivate();
void connectToHost();
void closeConnection(SshErrorCode sshError, SshError userError,
const QByteArray &serverErrorString, const QString &userErrorString);
QSharedPointer<SshRemoteProcess> createRemoteProcess(const QByteArray &command);
QSharedPointer<SshRemoteProcess> createRemoteShell();
QSharedPointer<SftpChannel> createSftpChannel();
SshStateInternal state() const { return m_state; }
SshError error() const { return m_error; }
QString errorString() const { return m_errorString; }
signals:
void connected();
void disconnected();
void dataAvailable(const QString &message);
void error(Utils::SshError);
private:
Q_SLOT void handleSocketConnected();
Q_SLOT void handleIncomingData();
Q_SLOT void handleSocketError();
Q_SLOT void handleSocketDisconnected();
Q_SLOT void handleTimeout();
Q_SLOT void sendKeepAlivePacket();
void handleServerId();
void handlePackets();
void handleCurrentPacket();
void handleKeyExchangeInitPacket();
void handleKeyExchangeReplyPacket();
void handleNewKeysPacket();
void handleServiceAcceptPacket();
void handlePasswordExpiredPacket();
void handleUserAuthSuccessPacket();
void handleUserAuthFailurePacket();
void handleUserAuthBannerPacket();
void handleGlobalRequest();
void handleDebugPacket();
void handleUnimplementedPacket();
void handleChannelRequest();
void handleChannelOpen();
void handleChannelOpenFailure();
void handleChannelOpenConfirmation();
void handleChannelSuccess();
void handleChannelFailure();
void handleChannelWindowAdjust();
void handleChannelData();
void handleChannelExtendedData();
void handleChannelEof();
void handleChannelClose();
void handleDisconnect();
bool canUseSocket() const;
void sendData(const QByteArray &data);
typedef void (SshConnectionPrivate::*PacketHandler)();
typedef QList<SshStateInternal> StateList;
void setupPacketHandlers();
void setupPacketHandler(SshPacketType type, const StateList &states,
PacketHandler handler);
typedef QPair<StateList, PacketHandler> HandlerInStates;
QHash<SshPacketType, HandlerInStates> m_packetHandlers;
static const quint64 InvalidSeqNr;
QTcpSocket *m_socket;
SshStateInternal m_state;
SshKeyExchangeState m_keyExchangeState;
SshIncomingPacket m_incomingPacket;
SshSendFacility m_sendFacility;
SshChannelManager * const m_channelManager;
const SshConnectionParameters m_connParams;
QByteArray m_incomingData;
SshError m_error;
QString m_errorString;
QScopedPointer<SshKeyExchange> m_keyExchange;
QTimer m_timeoutTimer;
QTimer m_keepAliveTimer;
bool m_ignoreNextPacket;
SshConnection *m_conn;
quint64 m_lastInvalidMsgSeqNr;
QByteArray m_serverId;
};
} // namespace Internal
} // namespace Utils
#endif // SSHCONNECTION_P_H
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