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/*
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* Bittorrent Client using Qt4 and libtorrent.
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* Copyright (C) 2010 Christophe Dumez
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* In addition, as a special exception, the copyright holders give permission to
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* link this program with the OpenSSL project's "OpenSSL" library (or with
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* modified versions of it that use the same license as the "OpenSSL" library),
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* and distribute the linked executables. You must obey the GNU General Public
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* License in all respects for all of the code used other than "OpenSSL". If you
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* modify file(s), you may extend this exception to your version of the file(s),
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* but you are not obligated to do so. If you do not wish to do so, delete this
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* exception statement from your version.
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*
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* Contact : chris@qbittorrent.org
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*/
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#include <QXmlStreamReader>
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#include <QDesktopServices>
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#include <QDebug>
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#include <QRegExp>
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#include <QStringList>
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#include "base/utils/fs.h"
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#include "base/net/downloadmanager.h"
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#include "base/net/downloadhandler.h"
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#include "programupdater.h"
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namespace
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{
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const QString RSS_URL("https://www.fosshub.com/software/feedqBittorent");
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#ifdef Q_OS_MAC
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const QString OS_TYPE("Mac OS X");
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#elif defined(Q_OS_WIN) && (defined(__x86_64__) || defined(_M_X64))
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const QString OS_TYPE("Windows x64");
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#else
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const QString OS_TYPE("Windows");
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#endif
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QString getStringValue(QXmlStreamReader &xml);
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}
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ProgramUpdater::ProgramUpdater(QObject *parent, bool invokedByUser)
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: QObject(parent)
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, m_invokedByUser(invokedByUser)
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{
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}
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void ProgramUpdater::checkForUpdates()
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{
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Net::DownloadHandler *handler = Net::DownloadManager::instance()->downloadUrl(
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RSS_URL, false, 0, false,
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// Don't change this User-Agent. In case our updater goes haywire,
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// the filehost can identify it and contact us.
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QString("qBittorrent/%1 ProgramUpdater (www.qbittorrent.org)").arg(VERSION));
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connect(handler, SIGNAL(downloadFinished(QString,QByteArray)), SLOT(rssDownloadFinished(QString,QByteArray)));
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connect(handler, SIGNAL(downloadFailed(QString,QString)), SLOT(rssDownloadFailed(QString,QString)));
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}
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void ProgramUpdater::rssDownloadFinished(const QString &url, const QByteArray &data)
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{
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Q_UNUSED(url);
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qDebug("Finished downloading the new qBittorrent updates RSS");
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QString version;
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QXmlStreamReader xml(data);
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bool inItem = false;
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QString updateLink;
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QString type;
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while (!xml.atEnd()) {
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xml.readNext();
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if (xml.isStartElement()) {
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if (xml.name() == "item")
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inItem = true;
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else if (inItem && xml.name() == "link")
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updateLink = getStringValue(xml);
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else if (inItem && xml.name() == "type")
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type = getStringValue(xml);
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else if (inItem && xml.name() == "version")
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version = getStringValue(xml);
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}
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else if (xml.isEndElement()) {
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if (inItem && xml.name() == "item") {
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if (type.compare(OS_TYPE, Qt::CaseInsensitive) == 0) {
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qDebug("The last update available is %s", qPrintable(version));
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if (!version.isEmpty()) {
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qDebug("Detected version is %s", qPrintable(version));
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if (isVersionMoreRecent(version))
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m_updateUrl = updateLink;
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}
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break;
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}
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inItem = false;
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updateLink.clear();
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type.clear();
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version.clear();
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}
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}
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}
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emit updateCheckFinished(!m_updateUrl.isEmpty(), version, m_invokedByUser);
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}
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void ProgramUpdater::rssDownloadFailed(const QString &url, const QString &error)
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{
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Q_UNUSED(url);
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qDebug() << "Downloading the new qBittorrent updates RSS failed:" << error;
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emit updateCheckFinished(false, QString(), m_invokedByUser);
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}
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void ProgramUpdater::updateProgram()
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{
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Q_ASSERT(!m_updateUrl.isEmpty());
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QDesktopServices::openUrl(m_updateUrl);
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return;
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}
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bool ProgramUpdater::isVersionMoreRecent(const QString &remoteVersion) const
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{
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QRegExp regVer("([0-9.]+)");
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if (regVer.indexIn(QString(VERSION)) >= 0) {
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QString localVersion = regVer.cap(1);
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qDebug() << Q_FUNC_INFO << "local version:" << localVersion << "/" << VERSION;
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QStringList remoteParts = remoteVersion.split('.');
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QStringList localParts = localVersion.split('.');
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for (int i = 0; i<qMin(remoteParts.size(), localParts.size()); ++i) {
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if (remoteParts[i].toInt() > localParts[i].toInt())
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return true;
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if (remoteParts[i].toInt() < localParts[i].toInt())
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return false;
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}
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// Compared parts were equal, if remote version is longer, then it's more recent (2.9.2.1 > 2.9.2)
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if (remoteParts.size() > localParts.size())
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return true;
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// versions are equal, check if the local version is a development release, in which case it is older (2.9.2beta < 2.9.2)
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QRegExp regDevel("(alpha|beta|rc)");
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if (regDevel.indexIn(VERSION) >= 0)
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return true;
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}
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return false;
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}
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namespace
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{
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QString getStringValue(QXmlStreamReader &xml)
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{
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xml.readNext();
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if (xml.isCharacters() && !xml.isWhitespace())
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return xml.text().toString();
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return QString();
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}
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}
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