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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://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 http://www.qt.io/terms-conditions. For further information
** use the contact form at http://www.qt.io/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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "shell.h"
#include <ssh/sshconnection.h>
#include <ssh/sshremoteprocess.h>
#include <QCoreApplication>
#include <QFile>
#include <QSocketNotifier>
#include <cstdlib>
#include <iostream>
using namespace QSsh;
Shell::Shell(const SshConnectionParameters ¶meters, QObject *parent)
: QObject(parent),
m_connection(new SshConnection(parameters)),
m_stdin(new QFile(this))
{
connect(m_connection, SIGNAL(connected()), SLOT(handleConnected()));
connect(m_connection, SIGNAL(dataAvailable(QString)), SLOT(handleShellMessage(QString)));
connect(m_connection, SIGNAL(error(QSsh::SshError)), SLOT(handleConnectionError()));
}
Shell::~Shell()
{
delete m_connection;
}
void Shell::run()
{
if (!m_stdin->open(stdin, QIODevice::ReadOnly | QIODevice::Unbuffered)) {
std::cerr << "Error: Cannot read from standard input." << std::endl;
qApp->exit(EXIT_FAILURE);
return;
}
m_connection->connectToHost();
}
void Shell::handleConnectionError()
{
std::cerr << "SSH connection error: " << qPrintable(m_connection->errorString()) << std::endl;
qApp->exit(EXIT_FAILURE);
}
void Shell::handleShellMessage(const QString &message)
{
std::cout << qPrintable(message);
}
void Shell::handleConnected()
{
m_shell = m_connection->createRemoteShell();
connect(m_shell.data(), SIGNAL(started()), SLOT(handleShellStarted()));
connect(m_shell.data(), SIGNAL(readyReadStandardOutput()), SLOT(handleRemoteStdout()));
connect(m_shell.data(), SIGNAL(readyReadStandardError()), SLOT(handleRemoteStderr()));
connect(m_shell.data(), SIGNAL(closed(int)), SLOT(handleChannelClosed(int)));
m_shell->start();
}
void Shell::handleShellStarted()
{
QSocketNotifier * const notifier = new QSocketNotifier(0, QSocketNotifier::Read, this);
connect(notifier, SIGNAL(activated(int)), SLOT(handleStdin()));
}
void Shell::handleRemoteStdout()
{
std::cout << m_shell->readAllStandardOutput().data() << std::flush;
}
void Shell::handleRemoteStderr()
{
std::cerr << m_shell->readAllStandardError().data() << std::flush;
}
void Shell::handleChannelClosed(int exitStatus)
{
std::cerr << "Shell closed. Exit status was " << exitStatus << ", exit code was "
<< m_shell->exitCode() << "." << std::endl;
qApp->exit(exitStatus == SshRemoteProcess::NormalExit && m_shell->exitCode() == 0
? EXIT_SUCCESS : EXIT_FAILURE);
}
void Shell::handleStdin()
{
m_shell->write(m_stdin->readLine());
}
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