qBittorrent/src/base/rss/rssparser.h

/*
 * Bittorrent Client using Qt and libtorrent.
 * Copyright (C) 2012  Christophe Dumez
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * In addition, as a special exception, the copyright holders give permission to
 * link this program with the OpenSSL project's "OpenSSL" library (or with
 * modified versions of it that use the same license as the "OpenSSL" library),
 * and distribute the linked executables. You must obey the GNU General Public
 * License in all respects for all of the code used other than "OpenSSL".  If you
 * modify file(s), you may extend this exception to your version of the file(s),
 * but you are not obligated to do so. If you do not wish to do so, delete this
 * exception statement from your version.
 *
 * Contact : chris@qbittorrent.org
 */

#ifndef RSSPARSER_H
#define RSSPARSER_H

#include <QMutex>
#include <QQueue>
#include <QThread>
#include <QWaitCondition>

#include "rssarticle.h"

namespace Rss
{
    struct ParsingJob;

    class Parser: public QThread
    {
        Q_OBJECT

    public:
        explicit Parser(QObject *parent = 0);
        virtual ~Parser();

    signals:
        void newArticle(const QString &feedUrl, const QVariantHash &rssArticle);
        void feedTitle(const QString &feedUrl, const QString &title);
        void feedParsingFinished(const QString &feedUrl, const QString &error);

    public slots:
        void parseRssFile(const QString &feedUrl, const QString &filePath);
        void clearFeedData(const QString &feedUrl);

    protected:
        virtual void run();

    private:
        static QDateTime parseDate(const QString &string);
        void parseRssArticle(QXmlStreamReader &xml, const QString &feedUrl);
        void parseRSSChannel(QXmlStreamReader &xml, const QString &feedUrl);
        void parseAtomArticle(QXmlStreamReader &xml, const QString &feedUrl, const QString &baseUrl);
        void parseAtomChannel(QXmlStreamReader &xml, const QString &feedUrl);
        void parseFeed(const ParsingJob &job);
        void reportFailure(const ParsingJob &job, const QString &error);

        bool m_running;
        QMutex m_mutex;
        QQueue<ParsingJob> m_queue;
        QWaitCondition m_waitCondition;
        QHash<QString/*feedUrl*/, QString/*lastBuildDate*/> m_lastBuildDates; // Optimization
    };
}

#endif // RSSPARSER_H