src/base/bittorrent/trackerentry.cpp

   1 /*
   2  * Bittorrent Client using Qt and libtorrent.
   3  * Copyright (C) 2024  Mike Tzou (Chocobo1)
   4  * Copyright (C) 2015-2023  Vladimir Golovnev <glassez@yandex.ru>
   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 "trackerentry.h"
  31
  32 #include <QHash>
  33 #include <QList>
  34 #include <QStringView>
  35
  36 QList<BitTorrent::TrackerEntry> BitTorrent::parseTrackerEntries(const QStringView str)
  37 {
  38     const QList<QStringView> trackers = str.split(u'\n');  // keep the empty parts to track tracker tier
  39
  40     QList<BitTorrent::TrackerEntry> entries;
  41     entries.reserve(trackers.size());
  42
  43     int trackerTier = 0;
  44     for (QStringView tracker : trackers)
  45     {
  46         tracker = tracker.trimmed();
  47
  48         if (tracker.isEmpty())
  49         {
  50             if (trackerTier < std::numeric_limits<decltype(trackerTier)>::max())  // prevent overflow
  51                 ++trackerTier;
  52             continue;
  53         }
  54
  55         entries.append({tracker.toString(), trackerTier});
  56     }
  57
  58     return entries;
  59 }
  60
  61 bool BitTorrent::operator==(const TrackerEntry &left, const TrackerEntry &right)
  62 {
  63     return (left.url == right.url);
  64 }
  65
  66 std::size_t BitTorrent::qHash(const TrackerEntry &key, const std::size_t seed)
  67 {
  68     return ::qHash(key.url, seed);
  69 }