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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#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) {
const QMap<QByteArray, QVariant> file = qvariant_cast<Dictionary>(files.at(i));
const QList<QVariant> pathElements = file.value("path").toList();
QByteArray path;
for (const 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.setSecsSinceEpoch(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;
for (const MetaInfoMultiFile &file : metaInfoMultiFiles)
size += file.length;
return size;
}
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