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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#include "sshremoteprocess.h"
#include "sshlogging_p.h"
#include "sshsettings.h"
#include <utils/fileutils.h>
#include <utils/qtcassert.h>
#include <QTimer>
#include <cstring>
#include <cstdlib>
/*!
\class QSsh::SshRemoteProcess
\brief The SshRemoteProcess class implements an SSH channel for running a
remote process.
Objects are created via SshConnection::createRemoteProcess.
The process is started via the start() member function.
If the process needs a pseudo terminal, you can request one
via requestTerminal() before calling start().
*/
namespace QSsh {
using namespace Internal;
struct SshRemoteProcess::SshRemoteProcessPrivate
{
QByteArray remoteCommand;
QStringList connectionArgs;
QString displayName;
bool useTerminal = false;
};
SshRemoteProcess::SshRemoteProcess(const QByteArray &command, const QStringList &connectionArgs)
: d(new SshRemoteProcessPrivate)
{
d->remoteCommand = command;
d->connectionArgs = connectionArgs;
connect(this,
static_cast<void (QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished),
[this] {
QString error;
if (exitStatus() == QProcess::CrashExit)
error = tr("The ssh binary crashed: %1").arg(errorString());
else if (exitCode() == 255)
error = tr("Remote process crashed.");
emit done(error);
});
connect(this, &QProcess::errorOccurred, [this](QProcess::ProcessError error) {
if (error == QProcess::FailedToStart)
emit done(errorString());
});
}
void SshRemoteProcess::doStart()
{
QTC_ASSERT(!isRunning(), return);
QStringList args = QStringList("-q") << d->connectionArgs;
if (d->useTerminal)
args.prepend("-tt");
if (!d->displayName.isEmpty()) {
args.prepend("-X");
QProcessEnvironment env = processEnvironment();
env.insert("DISPLAY", d->displayName);
setProcessEnvironment(env);
}
if (!d->remoteCommand.isEmpty())
args << QLatin1String(d->remoteCommand);
qCDebug(sshLog) << "starting remote process:" << SshSettings::sshFilePath().toUserOutput()
<< args;
QProcess::start(SshSettings::sshFilePath().toString(), args);
}
SshRemoteProcess::~SshRemoteProcess()
{
delete d;
}
void SshRemoteProcess::requestTerminal()
{
d->useTerminal = true;
}
void SshRemoteProcess::requestX11Forwarding(const QString &displayName)
{
d->displayName = displayName;
}
void SshRemoteProcess::start()
{
QTimer::singleShot(0, this, &SshRemoteProcess::doStart);
}
bool SshRemoteProcess::isRunning() const
{
return state() == QProcess::Running;
}
} // namespace QSsh
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