src/gui/programupdater.cpp

   1 /*
   2  * Bittorrent Client using Qt and libtorrent.
   3  * Copyright (C) 2021  Mike Tzou (Chocobo1)
   4  * Copyright (C) 2010  Christophe Dumez <chris@qbittorrent.org>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19  *
  20  * In addition, as a special exception, the copyright holders give permission to
  21  * link this program with the OpenSSL project's "OpenSSL" library (or with
  22  * modified versions of it that use the same license as the "OpenSSL" library),
  23  * and distribute the linked executables. You must obey the GNU General Public
  24  * License in all respects for all of the code used other than "OpenSSL".  If you
  25  * modify file(s), you may extend this exception to your version of the file(s),
  26  * but you are not obligated to do so. If you do not wish to do so, delete this
  27  * exception statement from your version.
  28  */
  29
  30 #include "programupdater.h"
  31
  32 #if defined(Q_OS_WIN)
  33 #include <Windows.h>
  34 #include <versionhelpers.h>  // must follow after Windows.h
  35 #endif
  36
  37 #include <QDebug>
  38 #include <QDesktopServices>
  39 #include <QRegularExpression>
  40 #include <QXmlStreamReader>
  41
  42 #if defined(Q_OS_WIN)
  43 #include <QSysInfo>
  44 #endif
  45
  46 #include "base/net/downloadmanager.h"
  47 #include "base/utils/version.h"
  48 #include "base/version.h"
  49
  50 namespace
  51 {
  52     bool isVersionMoreRecent(const QString &remoteVersion)
  53     {
  54         using Version = Utils::Version<int, 4, 3>;
  55
  56         try
  57         {
  58             const Version newVersion {remoteVersion};
  59             const Version currentVersion {QBT_VERSION_MAJOR, QBT_VERSION_MINOR, QBT_VERSION_BUGFIX, QBT_VERSION_BUILD};
  60             if (newVersion == currentVersion)
  61             {
  62                 const bool isDevVersion = QString::fromLatin1(QBT_VERSION_STATUS).contains(
  63                     QRegularExpression(QLatin1String("(alpha|beta|rc)")));
  64                 if (isDevVersion)
  65                     return true;
  66             }
  67             return (newVersion > currentVersion);
  68         }
  69         catch (const RuntimeError &)
  70         {
  71             return false;
  72         }
  73     }
  74 }
  75
  76 void ProgramUpdater::checkForUpdates() const
  77 {
  78     const auto RSS_URL = QString::fromLatin1("https://www.fosshub.com/feed/5b8793a7f9ee5a5c3e97a3b2.xml");
  79     // Don't change this User-Agent. In case our updater goes haywire,
  80     // the filehost can identify it and contact us.
  81     Net::DownloadManager::instance()->download(
  82         Net::DownloadRequest(RSS_URL).userAgent("qBittorrent/" QBT_VERSION_2 " ProgramUpdater (www.qbittorrent.org)")
  83         , this, &ProgramUpdater::rssDownloadFinished);
  84 }
  85
  86 QString ProgramUpdater::getNewVersion() const
  87 {
  88     return m_newVersion;
  89 }
  90
  91 void ProgramUpdater::rssDownloadFinished(const Net::DownloadResult &result)
  92 {
  93     if (result.status != Net::DownloadStatus::Success)
  94     {
  95         qDebug() << "Downloading the new qBittorrent updates RSS failed:" << result.errorString;
  96         emit updateCheckFinished();
  97         return;
  98     }
  99
 100     qDebug("Finished downloading the new qBittorrent updates RSS");
 101
 102     const auto getStringValue = [](QXmlStreamReader &xml) -> QString
 103     {
 104         xml.readNext();
 105         return (xml.isCharacters() && !xml.isWhitespace())
 106             ? xml.text().toString()
 107             : QString {};
 108     };
 109
 110 #ifdef Q_OS_MACOS
 111     const QString OS_TYPE {"Mac OS X"};
 112 #elif defined(Q_OS_WIN)
 113     const QString OS_TYPE {(::IsWindows7OrGreater()
 114         && QSysInfo::currentCpuArchitecture().endsWith("64"))
 115         ? "Windows x64" : "Windows"};
 116 #endif
 117
 118     bool inItem = false;
 119     QString version;
 120     QString updateLink;
 121     QString type;
 122     QXmlStreamReader xml(result.data);
 123
 124     while (!xml.atEnd())
 125     {
 126         xml.readNext();
 127
 128         if (xml.isStartElement())
 129         {
 130             if (xml.name() == QLatin1String("item"))
 131                 inItem = true;
 132             else if (inItem && (xml.name() == QLatin1String("link")))
 133                 updateLink = getStringValue(xml);
 134             else if (inItem && (xml.name() == QLatin1String("type")))
 135                 type = getStringValue(xml);
 136             else if (inItem && (xml.name() == QLatin1String("version")))
 137                 version = getStringValue(xml);
 138         }
 139         else if (xml.isEndElement())
 140         {
 141             if (inItem && (xml.name() == QLatin1String("item")))
 142             {
 143                 if (type.compare(OS_TYPE, Qt::CaseInsensitive) == 0)
 144                 {
 145                     qDebug("The last update available is %s", qUtf8Printable(version));
 146                     if (!version.isEmpty())
 147                     {
 148                         qDebug("Detected version is %s", qUtf8Printable(version));
 149                         if (isVersionMoreRecent(version))
 150                         {
 151                             m_newVersion = version;
 152                             m_updateURL = updateLink;
 153                         }
 154                     }
 155                     break;
 156                 }
 157
 158                 inItem = false;
 159                 updateLink.clear();
 160                 type.clear();
 161                 version.clear();
 162             }
 163         }
 164     }
 165
 166     emit updateCheckFinished();
 167 }
 168
 169 bool ProgramUpdater::updateProgram() const
 170 {
 171     return QDesktopServices::openUrl(m_updateURL);
 172 }