<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <title>Qt 4.2: metainfo.cpp Example File (network/torrent/metainfo.cpp)</title> <link href="classic.css" rel="stylesheet" type="text/css" /> </head> <body> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td align="left" valign="top" width="32"><a href="http://www.trolltech.com/products/qt"><img src="images/qt-logo.png" align="left" width="32" height="32" border="0" /></a></td> <td width="1"> </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a> · <a href="classes.html"><font color="#004faf">All Classes</font></a> · <a href="mainclasses.html"><font color="#004faf">Main Classes</font></a> · <a href="groups.html"><font color="#004faf">Grouped Classes</font></a> · <a href="modules.html"><font color="#004faf">Modules</font></a> · <a href="functions.html"><font color="#004faf">Functions</font></a></td> <td align="right" valign="top" width="230"><a href="http://www.trolltech.com"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></a></td></tr></table><h1 align="center">metainfo.cpp Example File<br /><sup><sup>network/torrent/metainfo.cpp</sup></sup></h1> <pre> /**************************************************************************** ** ** Copyright (C) 2004-2006 Trolltech ASA. All rights reserved. ** ** This file is part of the example classes of the Qt Toolkit. ** ** This file may be used under the terms of the GNU General Public ** License version 2.0 as published by the Free Software Foundation ** and appearing in the file LICENSE.GPL included in the packaging of ** this file. Please review the following information to ensure GNU ** General Public Licensing requirements will be met: ** http:<span class="comment">//www.trolltech.com/products/qt/opensource.html</span> ** ** If you are unsure which license is appropriate for your use, please ** review the following information: ** http:<span class="comment">//www.trolltech.com/products/qt/licensing.html or contact the</span> ** sales department at sales@trolltech.com. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ****************************************************************************/ #include "bencodeparser.h" #include "metainfo.h" #include <QDateTime> #include <QMetaType> #include <QString> MetaInfo::MetaInfo() { clear(); } void MetaInfo::clear() { errString = "Unknown error"; content.clear(); infoData.clear(); metaInfoMultiFiles.clear(); metaInfoAnnounce.clear(); metaInfoAnnounceList.clear(); metaInfoCreationDate = QDateTime(); metaInfoComment.clear(); metaInfoCreatedBy.clear(); metaInfoName.clear(); metaInfoPieceLength = 0; metaInfoSha1Sums.clear(); } bool MetaInfo::parse(const QByteArray &data) { clear(); content = data; BencodeParser parser; if (!parser.parse(content)) { errString = parser.errorString(); return false; } infoData = parser.infoSection(); QMap<QByteArray, QVariant> dict = parser.dictionary(); if (!dict.contains("info")) return false; QMap<QByteArray, QVariant> info = qVariantValue<Dictionary>(dict.value("info")); if (info.contains("files")) { metaInfoFileForm = MultiFileForm; QList<QVariant> files = info.value("files").toList(); for (int i = 0; i < files.size(); ++i) { QMap<QByteArray, QVariant> file = qVariantValue<Dictionary>(files.at(i)); QList<QVariant> pathElements = file.value("path").toList(); QByteArray path; foreach (QVariant p, pathElements) { if (!path.isEmpty()) path += "/"; path += p.toByteArray(); } MetaInfoMultiFile multiFile; multiFile.length = file.value("length").toLongLong(); multiFile.path = QString::fromUtf8(path); multiFile.md5sum = file.value("md5sum").toByteArray(); metaInfoMultiFiles << multiFile; } metaInfoName = QString::fromUtf8(info.value("name").toByteArray()); metaInfoPieceLength = info.value("piece length").toInt(); QByteArray pieces = info.value("pieces").toByteArray(); for (int i = 0; i < pieces.size(); i += 20) metaInfoSha1Sums << pieces.mid(i, 20); } else if (info.contains("length")) { metaInfoFileForm = SingleFileForm; metaInfoSingleFile.length = info.value("length").toLongLong(); metaInfoSingleFile.md5sum = info.value("md5sum").toByteArray(); metaInfoSingleFile.name = QString::fromUtf8(info.value("name").toByteArray()); metaInfoSingleFile.pieceLength = info.value("piece length").toInt(); QByteArray pieces = info.value("pieces").toByteArray(); for (int i = 0; i < pieces.size(); i += 20) metaInfoSingleFile.sha1Sums << pieces.mid(i, 20); } metaInfoAnnounce = QString::fromUtf8(dict.value("announce").toByteArray()); if (dict.contains("announce-list")) { <span class="comment">// ### unimplemented</span> } if (dict.contains("creation date")) metaInfoCreationDate.setTime_t(dict.value("creation date").toInt()); if (dict.contains("comment")) metaInfoComment = QString::fromUtf8(dict.value("comment").toByteArray()); if (dict.contains("created by")) metaInfoCreatedBy = QString::fromUtf8(dict.value("created by").toByteArray()); return true; } QByteArray MetaInfo::infoValue() const { return infoData; } QString MetaInfo::errorString() const { return errString; } MetaInfo::FileForm MetaInfo::fileForm() const { return metaInfoFileForm; } QString MetaInfo::announceUrl() const { return metaInfoAnnounce; } QStringList MetaInfo::announceList() const { return metaInfoAnnounceList; } QDateTime MetaInfo::creationDate() const { return metaInfoCreationDate; } QString MetaInfo::comment() const { return metaInfoComment; } QString MetaInfo::createdBy() const { return metaInfoCreatedBy; } MetaInfoSingleFile MetaInfo::singleFile() const { return metaInfoSingleFile; } QList<MetaInfoMultiFile> MetaInfo::multiFiles() const { return metaInfoMultiFiles; } QString MetaInfo::name() const { return metaInfoName; } int MetaInfo::pieceLength() const { return metaInfoPieceLength; } QList<QByteArray> MetaInfo::sha1Sums() const { return metaInfoSha1Sums; } qint64 MetaInfo::totalSize() const { if (fileForm() == SingleFileForm) return singleFile().length; qint64 size = 0; foreach (MetaInfoMultiFile file, multiFiles()) size += file.length; return size; }</pre> <p /><address><hr /><div align="center"> <table width="100%" cellspacing="0" border="0"><tr class="address"> <td width="30%">Copyright © 2006 <a href="trolltech.html">Trolltech</a></td> <td width="40%" align="center"><a href="trademarks.html">Trademarks</a></td> <td width="30%" align="right"><div align="right">Qt 4.2.1</div></td> </tr></table></div></address></body> </html>