mobiextractor.cpp

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/*
    Copyright (C) 2013  Vishesh Handa <me@vhanda.in>

    Code adapted from kdegraphics-mobipocket/strigi/
    Copyright (C) 2008 by Jakub Stachowski <qbast@go2.pl>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/


#include "mobiextractor.h"

#include <qmobipocket/mobipocket.h>
#include "qfilestream.h"

#include "nie.h"
#include "nfo.h"
#include "nco.h"

#include <Soprano/Vocabulary/NAO>

#include <KDebug>
#include <QtCore/QDateTime>
#include <QTextDocument>

using namespace Nepomuk2::Vocabulary;
using namespace Soprano::Vocabulary;

namespace Nepomuk2 {

MobiExtractor::MobiExtractor(QObject* parent, const QVariantList& )
    : ExtractorPlugin(parent)
{

}

QStringList MobiExtractor::mimetypes()
{
    QStringList types;
    types << QLatin1String("application/x-mobipocket-ebook");

    return types;
}

SimpleResourceGraph MobiExtractor::extract(const QUrl& resUri, const QUrl& fileUrl, const QString& mimeType)
{
    Q_UNUSED( mimeType );

    SimpleResource fileRes(resUri);
    SimpleResourceGraph graph;

    Mobipocket::QFileStream stream( fileUrl.toLocalFile() );
    Mobipocket::Document doc(&stream);
    if( !doc.isValid() )
        return graph;

    QMapIterator<Mobipocket::Document::MetaKey,QString> it(doc.metadata());
    while (it.hasNext()) {
        it.next();
        switch (it.key()) {
            case Mobipocket::Document::Title:
                fileRes.addProperty( NIE::title(), it.value() );
                break;
            case Mobipocket::Document::Author: {
                SimpleResource con;
                con.addType( NCO::Contact() );
                con.addProperty( NCO::fullname(), it.value() );

                fileRes.addProperty( NCO::creator(), con );
                graph << con;
                break;
            }
            case Mobipocket::Document::Description: {
                QTextDocument document;
                document.setHtml( it.value() );

                QString plain = document.toPlainText();
                if( !plain.isEmpty() )
                    fileRes.addProperty( NIE::comment(), plain );
                break;
            }
            case Mobipocket::Document::Subject:
                fileRes.addProperty( NIE::subject(), it.value() );
                break;
            case Mobipocket::Document::Copyright:
                fileRes.addProperty( NIE::copyright(), it.value() );
                break;
        }
    }

    if (!doc.hasDRM()) {
        QString html = doc.text( maxPlainTextSize() );

        QTextDocument document;
        document.setHtml(html);

        QString plainText = document.toPlainText();
        if( !plainText.isEmpty() )
            fileRes.addProperty( NIE::plainTextContent(), plainText );
    }

    graph << fileRes;
    return graph;
}

}

NEPOMUK_EXPORT_EXTRACTOR( Nepomuk2::MobiExtractor, "nepomukmobiextractor" )