src/base/bittorrent/nativesessionextension.cpp

   1 /*
   2  * Bittorrent Client using Qt and libtorrent.
   3  * Copyright (C) 2020  Vladimir Golovnev <glassez@yandex.ru>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  *
  19  * In addition, as a special exception, the copyright holders give permission to
  20  * link this program with the OpenSSL project's "OpenSSL" library (or with
  21  * modified versions of it that use the same license as the "OpenSSL" library),
  22  * and distribute the linked executables. You must obey the GNU General Public
  23  * License in all respects for all of the code used other than "OpenSSL".  If you
  24  * modify file(s), you may extend this exception to your version of the file(s),
  25  * but you are not obligated to do so. If you do not wish to do so, delete this
  26  * exception statement from your version.
  27  */
  28
  29 #include "nativesessionextension.h"
  30
  31 #include <libtorrent/alert_types.hpp>
  32
  33 #include "nativetorrentextension.h"
  34
  35 namespace
  36 {
  37     void handleFastresumeRejectedAlert(const lt::fastresume_rejected_alert *alert)
  38     {
  39         if (alert->error.value() == lt::errors::mismatching_file_size)
  40         {
  41             alert->handle.unset_flags(lt::torrent_flags::auto_managed);
  42             alert->handle.pause();
  43         }
  44     }
  45 }
  46
  47 lt::feature_flags_t NativeSessionExtension::implemented_features()
  48 {
  49     return alert_feature;
  50 }
  51
  52 std::shared_ptr<lt::torrent_plugin> NativeSessionExtension::new_torrent(const lt::torrent_handle &torrentHandle, ClientData)
  53 {
  54     return std::make_shared<NativeTorrentExtension>(torrentHandle);
  55 }
  56
  57 void NativeSessionExtension::on_alert(const lt::alert *alert)
  58 {
  59     switch (alert->type())
  60     {
  61     case lt::fastresume_rejected_alert::alert_type:
  62         handleFastresumeRejectedAlert(static_cast<const lt::fastresume_rejected_alert *>(alert));
  63         break;
  64     }
  65 }