qBittorrent/src/gui/programupdater.cpp

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/*
* Bittorrent Client using Qt4 and libtorrent.
* Copyright (C) 2010 Christophe Dumez
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* In addition, as a special exception, the copyright holders give permission to
* link this program with the OpenSSL project's "OpenSSL" library (or with
* modified versions of it that use the same license as the "OpenSSL" library),
* and distribute the linked executables. You must obey the GNU General Public
* License in all respects for all of the code used other than "OpenSSL". If you
* modify file(s), you may extend this exception to your version of the file(s),
* but you are not obligated to do so. If you do not wish to do so, delete this
* exception statement from your version.
*
* Contact : chris@qbittorrent.org
*/
#include <QNetworkAccessManager>
#include <QNetworkRequest>
#include <QNetworkReply>
#include <QXmlStreamReader>
#include <QNetworkProxy>
#include <QDesktopServices>
#include <QDebug>
#include <QRegExp>
#include <QStringList>
#include "programupdater.h"
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#include "base/utils/fs.h"
#include "base/preferences.h"
#ifdef Q_OS_MAC
const QUrl RSS_URL("http://sourceforge.net/projects/qbittorrent/rss?path=/qbittorrent-mac");
const QString FILE_EXT = "DMG";
#else
const QUrl RSS_URL("http://sourceforge.net/projects/qbittorrent/rss?path=/qbittorrent-win32");
const QString FILE_EXT = "EXE";
#endif
ProgramUpdater::ProgramUpdater(QObject *parent, bool invokedByUser) :
QObject(parent), m_invokedByUser(invokedByUser)
{
mp_manager = new QNetworkAccessManager(this);
Preferences* const pref = Preferences::instance();
// Proxy support
if (pref->isProxyEnabled()) {
QNetworkProxy proxy;
switch(pref->getProxyType()) {
case Proxy::SOCKS4:
case Proxy::SOCKS5:
case Proxy::SOCKS5_PW:
proxy.setType(QNetworkProxy::Socks5Proxy);
default:
proxy.setType(QNetworkProxy::HttpProxy);
break;
}
proxy.setHostName(pref->getProxyIp());
proxy.setPort(pref->getProxyPort());
// Proxy authentication
if (pref->isProxyAuthEnabled()) {
proxy.setUser(pref->getProxyUsername());
proxy.setPassword(pref->getProxyPassword());
}
mp_manager->setProxy(proxy);
}
}
ProgramUpdater::~ProgramUpdater() {
delete mp_manager;
}
void ProgramUpdater::checkForUpdates()
{
// SIGNAL/SLOT
connect(mp_manager, SIGNAL(finished(QNetworkReply*)),
this, SLOT(rssDownloadFinished(QNetworkReply*)));
// Send the request
QNetworkRequest request(RSS_URL);
request.setRawHeader("User-Agent", QString("qBittorrent/%1 ProgramUpdater (www.qbittorrent.org)").arg(VERSION).toLocal8Bit());
mp_manager->get(request);
}
void ProgramUpdater::setUpdateUrl(QString title) {
m_updateUrl = "http://downloads.sourceforge.net/project/qbittorrent"+title;
qDebug("The Update URL is %s", qPrintable(m_updateUrl));
}
void ProgramUpdater::rssDownloadFinished(QNetworkReply *reply)
{
// Disconnect SIGNAL/SLOT
disconnect(mp_manager, 0, this, 0);
qDebug("Finished downloading the new qBittorrent updates RSS");
QString new_version;
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if (!reply->error()) {
qDebug("No download error, good.");
QXmlStreamReader xml(reply);
QString item_title;
bool in_title = false;
bool in_item = false;
while (!xml.atEnd()) {
xml.readNext();
if (xml.isStartElement()) {
if (in_item && xml.name() == "title") {
in_title = true;
item_title = "";
} else if (xml.name() == "item") {
in_item = true;
}
} else if (xml.isEndElement()) {
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if (in_item && xml.name() == "title") {
in_title = false;
const QString ext = Utils::Fs::fileExtension(item_title).toUpper();
qDebug("Found an update with file extension: %s", qPrintable(ext));
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if (ext == FILE_EXT) {
qDebug("The last update available is %s", qPrintable(item_title));
new_version = extractVersionNumber(item_title);
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if (!new_version.isEmpty()) {
qDebug("Detected version is %s", qPrintable(new_version));
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if (isVersionMoreRecent(new_version))
setUpdateUrl(item_title);
}
break;
}
} else if (xml.name() == "item") {
in_item = false;
}
} else if (xml.isCharacters() && !xml.isWhitespace()) {
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if (in_item && in_title)
item_title += xml.text().toString();
}
}
}
emit updateCheckFinished(!m_updateUrl.isEmpty(), new_version, m_invokedByUser);
// Clean up
reply->deleteLater();
}
void ProgramUpdater::updateProgram()
{
Q_ASSERT(!m_updateUrl.isEmpty());
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QDesktopServices::openUrl(m_updateUrl);
return;
}
// title on Windows: /qbittorrent-win32/qbittorrent-2.4.7/qbittorrent_2.4.7_setup.exe
// title on Mac: /qbittorrent-mac/qbittorrent-2.4.4/qbittorrent-2.4.4.dmg
QString ProgramUpdater::extractVersionNumber(const QString& title) const
{
qDebug() << Q_FUNC_INFO << title;
QRegExp regVer("qbittorrent[_-]([0-9.]+)(_setup)?(\\.exe|\\.dmg)");
if (regVer.indexIn(title) < 0) {
qWarning() << Q_FUNC_INFO << "Failed to extract version from file name:" << title;
return QString::null;
} else {
QString version = regVer.cap(1);
qDebug() << Q_FUNC_INFO << "Extracted version:" << version;
return version;
}
}
bool ProgramUpdater::isVersionMoreRecent(const QString& remote_version) const
{
QRegExp regVer("([0-9.]+)");
if (regVer.indexIn(QString(VERSION)) >= 0) {
QString local_version = regVer.cap(1);
qDebug() << Q_FUNC_INFO << "local version:" << local_version << "/" << VERSION;
QStringList remote_parts = remote_version.split('.');
QStringList local_parts = local_version.split('.');
for (int i=0; i<qMin(remote_parts.size(), local_parts.size()); ++i) {
if (remote_parts[i].toInt() > local_parts[i].toInt())
return true;
if (remote_parts[i].toInt() < local_parts[i].toInt())
return false;
}
// Compared parts were equal, if remote version is longer, then it's more recent (2.9.2.1 > 2.9.2)
if (remote_parts.size() > local_parts.size())
return true;
// versions are equal, check if the local version is a development release, in which case it is older (2.9.2beta < 2.9.2)
QRegExp regDevel("(alpha|beta|rc)");
if (regDevel.indexIn(VERSION) >= 0)
return true;
}
return false;
}