src/base/search/searchhandler.h

   1 /*
   2  * Bittorrent Client using Qt and libtorrent.
   3  * Copyright (C) 2015, 2018  Vladimir Golovnev <glassez@yandex.ru>
   4  * Copyright (C) 2006  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 #pragma once
  31
  32 #include <QByteArray>
  33 #include <QList>
  34 #include <QObject>
  35 #include <QString>
  36 #include <QtContainerFwd>
  37
  38 class QProcess;
  39 class QTimer;
  40
  41 struct SearchResult
  42 {
  43     QString fileName;
  44     QString fileUrl;
  45     qlonglong fileSize;
  46     qlonglong nbSeeders;
  47     qlonglong nbLeechers;
  48     QString siteUrl;
  49     QString descrLink;
  50 };
  51
  52 class SearchPluginManager;
  53
  54 class SearchHandler : public QObject
  55 {
  56     Q_OBJECT
  57     Q_DISABLE_COPY_MOVE(SearchHandler)
  58
  59     friend class SearchPluginManager;
  60
  61     SearchHandler(const QString &pattern, const QString &category
  62                   , const QStringList &usedPlugins, SearchPluginManager *manager);
  63
  64 public:
  65     bool isActive() const;
  66     QString pattern() const;
  67     SearchPluginManager *manager() const;
  68     QList<SearchResult> results() const;
  69
  70     void cancelSearch();
  71
  72 signals:
  73     void searchFinished(bool cancelled = false);
  74     void searchFailed();
  75     void newSearchResults(const QVector<SearchResult> &results);
  76
  77 private:
  78     void readSearchOutput();
  79     void processFailed();
  80     void processFinished(int exitcode);
  81     bool parseSearchResult(QStringView line, SearchResult &searchResult);
  82
  83     const QString m_pattern;
  84     const QString m_category;
  85     const QStringList m_usedPlugins;
  86     SearchPluginManager *m_manager = nullptr;
  87     QProcess *m_searchProcess = nullptr;
  88     QTimer *m_searchTimeout = nullptr;
  89     QByteArray m_searchResultLineTruncated;
  90     bool m_searchCancelled = false;
  91     QList<SearchResult> m_results;
  92 };