src/base/bittorrent/torrentcreator.h

   1 /*
   2  * Bittorrent Client using Qt and libtorrent.
   3  * Copyright (C) 2024  Vladimir Golovnev <glassez@yandex.ru>
   4  * Copyright (C) 2024  Radu Carpa <radu.carpa@cern.ch>
   5  * Copyright (C) 2010  Christophe Dumez <chris@qbittorrent.org>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  20  *
  21  * In addition, as a special exception, the copyright holders give permission to
  22  * link this program with the OpenSSL project's "OpenSSL" library (or with
  23  * modified versions of it that use the same license as the "OpenSSL" library),
  24  * and distribute the linked executables. You must obey the GNU General Public
  25  * License in all respects for all of the code used other than "OpenSSL".  If you
  26  * modify file(s), you may extend this exception to your version of the file(s),
  27  * but you are not obligated to do so. If you do not wish to do so, delete this
  28  * exception statement from your version.
  29  */
  30
  31 #pragma once
  32
  33 #include <atomic>
  34
  35 #include <QObject>
  36 #include <QRunnable>
  37 #include <QStringList>
  38
  39 #include "base/path.h"
  40
  41 namespace BitTorrent
  42 {
  43 #ifdef QBT_USES_LIBTORRENT2
  44     enum class TorrentFormat
  45     {
  46         V1,
  47         V2,
  48         Hybrid
  49     };
  50 #endif
  51
  52     struct TorrentCreatorParams
  53     {
  54         bool isPrivate = false;
  55 #ifdef QBT_USES_LIBTORRENT2
  56         TorrentFormat torrentFormat = TorrentFormat::Hybrid;
  57 #else
  58         bool isAlignmentOptimized = false;
  59         int paddedFileSizeLimit = 0;
  60 #endif
  61         int pieceSize = 0;
  62         Path sourcePath;
  63         Path torrentFilePath;
  64         QString comment;
  65         QString source;
  66         QStringList trackers;
  67         QStringList urlSeeds;
  68     };
  69
  70     struct TorrentCreatorResult
  71     {
  72         Path torrentFilePath;
  73         Path savePath;
  74         int pieceSize;
  75     };
  76
  77     class TorrentCreator final : public QObject, public QRunnable
  78     {
  79         Q_OBJECT
  80         Q_DISABLE_COPY_MOVE(TorrentCreator)
  81
  82     public:
  83         explicit TorrentCreator(const TorrentCreatorParams &params, QObject *parent = nullptr);
  84
  85         const TorrentCreatorParams &params() const;
  86         bool isInterruptionRequested() const;
  87
  88         void run() override;
  89
  90 #ifdef QBT_USES_LIBTORRENT2
  91         static int calculateTotalPieces(const Path &inputPath, int pieceSize, TorrentFormat torrentFormat);
  92 #else
  93         static int calculateTotalPieces(const Path &inputPath, const int pieceSize
  94                 , const bool isAlignmentOptimized, int paddedFileSizeLimit);
  95 #endif
  96
  97     public slots:
  98         void requestInterruption();
  99
 100     signals:
 101         void started();
 102         void creationFailure(const QString &msg);
 103         void creationSuccess(const TorrentCreatorResult &result);
 104         void progressUpdated(int progress);
 105
 106     private:
 107         void sendProgressSignal(int currentPieceIdx, int totalPieces);
 108         void checkInterruptionRequested() const;
 109
 110         TorrentCreatorParams m_params;
 111         std::atomic_bool m_interruptionRequested;
 112     };
 113 }