- Qt 5.5
- Qt Network
- Torrent Example
- metainfo.h Example File
- Qt 5.5.1 Reference Documentation

# metainfo.h Example File

torrent/metainfo.h

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the examples of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:BSD$
    ** You may use this file under the terms of the BSD license as follows:
    **
    ** "Redistribution and use in source and binary forms, with or without
    ** modification, are permitted provided that the following conditions are
    ** met:
    **   * Redistributions of source code must retain the above copyright
    **     notice, this list of conditions and the following disclaimer.
    **   * Redistributions in binary form must reproduce the above copyright
    **     notice, this list of conditions and the following disclaimer in
    **     the documentation and/or other materials provided with the
    **     distribution.
    **   * Neither the name of The Qt Company Ltd nor the names of its
    **     contributors may be used to endorse or promote products derived
    **     from this software without specific prior written permission.
    **
    **
    ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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    ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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    ****************************************************************************/

    #ifndef METAINFO_H
    #define METAINFO_H

    #include <QByteArray>
    #include <QDateTime>
    #include <QList>
    #include <QMap>
    #include <QString>
    #include <QStringList>
    #include <QVariant>

    struct MetaInfoSingleFile
    {
        qint64 length;
        QByteArray md5sum;
        QString name;
        int pieceLength;
        QList<QByteArray> sha1Sums;
    };

    struct MetaInfoMultiFile
    {
        qint64 length;
        QByteArray md5sum;
        QString path;
    };

    class MetaInfo
    {
    public:
        enum FileForm {
            SingleFileForm,
            MultiFileForm
        };

        MetaInfo();
        void clear();

        bool parse(const QByteArray &data);
        QString errorString() const;

        QByteArray infoValue() const;

        FileForm fileForm() const;
        QString announceUrl() const;
        QStringList announceList() const;
        QDateTime creationDate() const;
        QString comment() const;
        QString createdBy() const;

        // For single file form
        MetaInfoSingleFile singleFile() const;

        // For multifile form
        QList<MetaInfoMultiFile> multiFiles() const;
        QString name() const;
        int pieceLength() const;
        QList<QByteArray> sha1Sums() const;

        // Total size
        qint64 totalSize() const;

    private:
        QString errString;
        QByteArray content;
        QByteArray infoData;

        FileForm metaInfoFileForm;
        MetaInfoSingleFile metaInfoSingleFile;
        QList<MetaInfoMultiFile> metaInfoMultiFiles;
        QString metaInfoAnnounce;
        QStringList metaInfoAnnounceList;
        QDateTime metaInfoCreationDate;
        QString metaInfoComment;
        QString metaInfoCreatedBy;
        QString metaInfoName;
        int metaInfoPieceLength;
        QList<QByteArray> metaInfoSha1Sums;
    };

    #endif