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metainfo.h Example File
network/torrent/metainfo.h

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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