src/base/bittorrent/trackerentry.cpp

   1 /*
   2  * Bittorrent Client using Qt and libtorrent.
   3  * Copyright (C) 2015-2022  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 "trackerentry.h"
  30
  31 #include <QList>
  32 #include <QVector>
  33
  34 QVector<BitTorrent::TrackerEntry> BitTorrent::parseTrackerEntries(const QStringView str)
  35 {
  36     const QList<QStringView> trackers = str.split(u'\n');  // keep the empty parts to track tracker tier
  37
  38     QVector<BitTorrent::TrackerEntry> entries;
  39     entries.reserve(trackers.size());
  40
  41     int trackerTier = 0;
  42     for (QStringView tracker : trackers)
  43     {
  44         tracker = tracker.trimmed();
  45
  46         if (tracker.isEmpty())
  47         {
  48             if (trackerTier < std::numeric_limits<decltype(trackerTier)>::max())  // prevent overflow
  49                 ++trackerTier;
  50             continue;
  51         }
  52
  53         entries.append({tracker.toString(), trackerTier});
  54     }
  55
  56     return entries;
  57 }
  58
  59 bool BitTorrent::operator==(const TrackerEntry &left, const TrackerEntry &right)
  60 {
  61     return (left.url == right.url);
  62 }
  63
  64 std::size_t BitTorrent::qHash(const TrackerEntry &key, const std::size_t seed)
  65 {
  66     return ::qHash(key.url, seed);
  67 }