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/****************************************************************************
**
** Copyright (C) 2012 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.
**
****************************************************************************/
#include "argumentscollector.h"
#include <iostream>
using namespace QSsh;
using namespace std;
ArgumentsCollector::ArgumentsCollector(const QStringList &args)
: m_arguments(args)
{
}
Parameters ArgumentsCollector::collect(bool &success) const
{
Parameters parameters;
try {
bool authTypeGiven = false;
bool portGiven = false;
bool timeoutGiven = false;
bool smallFileCountGiven = false;
bool bigFileSizeGiven = false;
bool proxySettingGiven = false;
int pos;
int port;
for (pos = 1; pos < m_arguments.count() - 1; ++pos) {
if (checkAndSetStringArg(pos, parameters.sshParams.host, "-h")
|| checkAndSetStringArg(pos, parameters.sshParams.userName, "-u"))
continue;
if (checkAndSetIntArg(pos, port, portGiven, "-p")
|| checkAndSetIntArg(pos, parameters.sshParams.timeout, timeoutGiven, "-t")
|| checkAndSetIntArg(pos, parameters.smallFileCount, smallFileCountGiven, "-c")
|| checkAndSetIntArg(pos, parameters.bigFileSize, bigFileSizeGiven, "-s"))
continue;
if (checkAndSetStringArg(pos, parameters.sshParams.password, "-pwd")) {
if (!parameters.sshParams.privateKeyFile.isEmpty())
throw ArgumentErrorException(QLatin1String("-pwd and -k are mutually exclusive."));
parameters.sshParams.authenticationType
= SshConnectionParameters::AuthenticationByPassword;
authTypeGiven = true;
continue;
}
if (checkAndSetStringArg(pos, parameters.sshParams.privateKeyFile, "-k")) {
if (!parameters.sshParams.password.isEmpty())
throw ArgumentErrorException(QLatin1String("-pwd and -k are mutually exclusive."));
parameters.sshParams.authenticationType
= SshConnectionParameters::AuthenticationByKey;
authTypeGiven = true;
continue;
}
if (!checkForNoProxy(pos, parameters.sshParams.proxyType, proxySettingGiven))
throw ArgumentErrorException(QLatin1String("unknown option ") + m_arguments.at(pos));
}
Q_ASSERT(pos <= m_arguments.count());
if (pos == m_arguments.count() - 1) {
if (!checkForNoProxy(pos, parameters.sshParams.proxyType, proxySettingGiven))
throw ArgumentErrorException(QLatin1String("unknown option ") + m_arguments.at(pos));
}
if (!authTypeGiven)
throw ArgumentErrorException(QLatin1String("No authentication argument given."));
if (parameters.sshParams.host.isEmpty())
throw ArgumentErrorException(QLatin1String("No host given."));
if (parameters.sshParams.userName.isEmpty())
throw ArgumentErrorException(QLatin1String("No user name given."));
parameters.sshParams.port = portGiven ? port : 22;
if (!timeoutGiven)
parameters.sshParams.timeout = 30;
if (!smallFileCountGiven)
parameters.smallFileCount = 1000;
if (!bigFileSizeGiven)
parameters.bigFileSize = 1024;
success = true;
} catch (ArgumentErrorException &ex) {
cerr << "Error: " << qPrintable(ex.error) << endl;
printUsage();
success = false;
}
return parameters;
}
void ArgumentsCollector::printUsage() const
{
cerr << "Usage: " << qPrintable(m_arguments.first())
<< " -h <host> -u <user> "
<< "-pwd <password> | -k <private key file> [ -p <port> ] "
<< "[ -t <timeout> ] [ -c <small file count> ] "
<< "[ -s <big file size in MB> ] [ -no-proxy ]" << endl;
}
bool ArgumentsCollector::checkAndSetStringArg(int &pos, QString &arg, const char *opt) const
{
if (m_arguments.at(pos) == QLatin1String(opt)) {
if (!arg.isEmpty()) {
throw ArgumentErrorException(QLatin1String("option ") + opt
+ QLatin1String(" was given twice."));
}
arg = m_arguments.at(++pos);
if (arg.isEmpty() && QLatin1String(opt) != QLatin1String("-pwd"))
throw ArgumentErrorException(QLatin1String("empty argument not allowed here."));
return true;
}
return false;
}
bool ArgumentsCollector::checkAndSetIntArg(int &pos, int &val,
bool &alreadyGiven, const char *opt) const
{
if (m_arguments.at(pos) == QLatin1String(opt)) {
if (alreadyGiven) {
throw ArgumentErrorException(QLatin1String("option ") + opt
+ QLatin1String(" was given twice."));
}
bool isNumber;
val = m_arguments.at(++pos).toInt(&isNumber);
if (!isNumber) {
throw ArgumentErrorException(QLatin1String("option ") + opt
+ QLatin1String(" needs integer argument"));
}
alreadyGiven = true;
return true;
}
return false;
}
bool ArgumentsCollector::checkForNoProxy(int &pos,
SshConnectionParameters::ProxyType &type, bool &alreadyGiven) const
{
if (m_arguments.at(pos) == QLatin1String("-no-proxy")) {
if (alreadyGiven)
throw ArgumentErrorException(QLatin1String("proxy setting given twice."));
type = SshConnectionParameters::NoProxy;
alreadyGiven = true;
return true;
}
return false;
}
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