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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
**
**************************************************************************/
#include "sshchannelmanager_p.h"
#include "sftpchannel.h"
#include "sftpchannel_p.h"
#include "sshincomingpacket_p.h"
#include "sshremoteprocess.h"
#include "sshremoteprocess_p.h"
#include "sshsendfacility_p.h"
#include <QtCore/QList>
namespace Core {
namespace Internal {
SshChannelManager::SshChannelManager(SshSendFacility &sendFacility)
: m_sendFacility(sendFacility), m_nextLocalChannelId(0)
{
}
SshChannelManager::~SshChannelManager() {}
void SshChannelManager::handleChannelRequest(const SshIncomingPacket &packet)
{
lookupChannel(packet.extractRecipientChannel())
->handleChannelRequest(packet);
}
void SshChannelManager::handleChannelOpen(const SshIncomingPacket &)
{
throw SSH_SERVER_EXCEPTION(SSH_DISCONNECT_PROTOCOL_ERROR,
"Server tried to open channel on client.");
}
void SshChannelManager::handleChannelOpenFailure(const SshIncomingPacket &packet)
{
const SshChannelOpenFailure &failure = packet.extractChannelOpenFailure();
ChannelIterator it = lookupChannelAsIterator(failure.localChannel);
try {
it.value()->handleOpenFailure(failure.reasonString);
} catch (SshServerException &e) {
removeChannel(it);
throw e;
}
removeChannel(it);
}
void SshChannelManager::handleChannelOpenConfirmation(const SshIncomingPacket &packet)
{
const SshChannelOpenConfirmation &confirmation
= packet.extractChannelOpenConfirmation();
lookupChannel(confirmation.localChannel)->handleOpenSuccess(confirmation.remoteChannel,
confirmation.remoteWindowSize, confirmation.remoteMaxPacketSize);
}
void SshChannelManager::handleChannelSuccess(const SshIncomingPacket &packet)
{
lookupChannel(packet.extractRecipientChannel())->handleChannelSuccess();
}
void SshChannelManager::handleChannelFailure(const SshIncomingPacket &packet)
{
lookupChannel(packet.extractRecipientChannel())->handleChannelFailure();
}
void SshChannelManager::handleChannelWindowAdjust(const SshIncomingPacket &packet)
{
const SshChannelWindowAdjust adjust = packet.extractWindowAdjust();
lookupChannel(adjust.localChannel)->handleWindowAdjust(adjust.bytesToAdd);
}
void SshChannelManager::handleChannelData(const SshIncomingPacket &packet)
{
const SshChannelData &data = packet.extractChannelData();
lookupChannel(data.localChannel)->handleChannelData(data.data);
}
void SshChannelManager::handleChannelExtendedData(const SshIncomingPacket &packet)
{
const SshChannelExtendedData &data = packet.extractChannelExtendedData();
lookupChannel(data.localChannel)->handleChannelExtendedData(data.type, data.data);
}
void SshChannelManager::handleChannelEof(const SshIncomingPacket &packet)
{
AbstractSshChannel * const channel
= lookupChannel(packet.extractRecipientChannel(), true);
if (channel)
channel->handleChannelEof();
}
void SshChannelManager::handleChannelClose(const SshIncomingPacket &packet)
{
const quint32 channelId = packet.extractRecipientChannel();
ChannelIterator it = lookupChannelAsIterator(channelId, true);
if (it != m_channels.end()) {
it.value()->handleChannelClose();
removeChannel(it);
}
}
SshChannelManager::ChannelIterator SshChannelManager::lookupChannelAsIterator(quint32 channelId,
bool allowNotFound)
{
ChannelIterator it = m_channels.find(channelId);
if (it == m_channels.end() && !allowNotFound) {
throw SshServerException(SSH_DISCONNECT_PROTOCOL_ERROR,
"Invalid channel id.",
SSH_TR("Invalid channel id %1").arg(channelId));
}
return it;
}
AbstractSshChannel *SshChannelManager::lookupChannel(quint32 channelId,
bool allowNotFound)
{
ChannelIterator it = lookupChannelAsIterator(channelId, allowNotFound);
return it == m_channels.end() ? 0 : it.value();
}
Core::SshRemoteProcess::Ptr SshChannelManager::createRemoteProcess(const QByteArray &command)
{
SshRemoteProcess::Ptr proc(new SshRemoteProcess(command, m_nextLocalChannelId++, m_sendFacility));
insertChannel(proc->d, proc);
return proc;
}
Core::SftpChannel::Ptr SshChannelManager::createSftpChannel()
{
SftpChannel::Ptr sftp(new SftpChannel(m_nextLocalChannelId++, m_sendFacility));
insertChannel(sftp->d, sftp);
return sftp;
}
void SshChannelManager::insertChannel(AbstractSshChannel *priv,
const QSharedPointer<QObject> &pub)
{
m_channels.insert(priv->localChannelId(), priv);
m_sessions.insert(priv, pub);
}
void SshChannelManager::closeAllChannels()
{
for (ChannelIterator it = m_channels.begin(); it != m_channels.end(); ++it)
it.value()->closeChannel();
m_channels.clear();
m_sessions.clear();
}
void SshChannelManager::removeChannel(ChannelIterator it)
{
Q_ASSERT(it != m_channels.end() && "Unexpected channel lookup failure.");
const int removeCount = m_sessions.remove(it.value());
Q_ASSERT(removeCount == 1 && "Session for channel not found.");
m_channels.erase(it);
}
} // namespace Internal
} // namespace Core
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