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Diffstat (limited to 'examples/network/torrent/metainfo.cpp')
| -rw-r--r-- | examples/network/torrent/metainfo.cpp | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/examples/network/torrent/metainfo.cpp b/examples/network/torrent/metainfo.cpp new file mode 100644 index 0000000000..ba55ebace6 --- /dev/null +++ b/examples/network/torrent/metainfo.cpp @@ -0,0 +1,217 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** 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 Nokia Corporation and its Subsidiary(-ies) 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, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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 = qvariant_cast<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 = qvariant_cast<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")) { + // ### unimplemented + } + + 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; +} |