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Properly handle metadata download for an existing torrent

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Vladimir Golovnev (Glassez) 2022-03-14 12:03:54 +03:00
commit 049e376953
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GPG key ID: 52A2C7DEE2DFA6F7
1 changed files with 30 additions and 8 deletions
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36
src/base/bittorrent/torrentimpl.cpp
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@ -236,6 +236,14 @@ namespace
status.pieces = params.have_pieces;
status.verified_pieces = params.verified_pieces;
}
template <typename Vector>
Vector resized(const Vector &inVector, const typename Vector::size_type size, const typename Vector::value_type &defaultValue)
{
Vector outVector = inVector;
outVector.resize(size, defaultValue);
return outVector;
}
}
// TorrentImpl
@ -1504,27 +1512,22 @@ void TorrentImpl::fileSearchFinished(const QString &savePath, const QStringList
void TorrentImpl::endReceivedMetadataHandling(const QString &savePath, const QStringList &fileNames)
{
Q_ASSERT(m_filePaths.isEmpty());
Q_ASSERT(m_indexMap.isEmpty());
lt::add_torrent_params &p = m_ltAddTorrentParams;
const std::shared_ptr<lt::torrent_info> metadata = std::const_pointer_cast<lt::torrent_info>(m_nativeHandle.torrent_file());
m_torrentInfo = TorrentInfo(*metadata);
m_filePaths = fileNames;
m_indexMap.reserve(filesCount());
const auto nativeIndexes = m_torrentInfo.nativeIndexes();
for (int i = 0; i < fileNames.size(); ++i)
{
const auto nativeIndex = nativeIndexes.at(i);
m_indexMap[nativeIndex] = i;
p.renamed_files[nativeIndex] = fileNames[i].toStdString();
}
p.save_path = Utils::Fs::toNativePath(savePath).toStdString();
p.ti = metadata;
const int internalFilesCount = p.ti->files().num_files(); // including .pad files
// Use qBittorrent default priority rather than libtorrent's (4)
p.file_priorities = std::vector(internalFilesCount, LT::toNative(DownloadPriority::Normal));
p.file_priorities = resized(p.file_priorities, metadata->files().num_files()
, LT::toNative(p.file_priorities.empty() ? DownloadPriority::Normal : DownloadPriority::Ignored));
reload();
@ -1566,6 +1569,7 @@ void TorrentImpl::reload()
}
m_nativeHandle = m_nativeSession->add_torrent(p);
if (queuePos >= lt::queue_position_t {})
m_nativeHandle.queue_position_set(queuePos);
}
@ -1781,6 +1785,8 @@ void TorrentImpl::handleSaveResumeDataAlert(const lt::save_resume_data_alert *p)
{
if (m_maintenanceJob == MaintenanceJob::HandleMetadata)
{
Q_ASSERT(m_indexMap.isEmpty());
m_ltAddTorrentParams = p->params;
m_ltAddTorrentParams.have_pieces.clear();
@ -1790,6 +1796,19 @@ void TorrentImpl::handleSaveResumeDataAlert(const lt::save_resume_data_alert *p)
QStringList filePaths = metadata.filePaths();
applyContentLayout(filePaths, m_contentLayout);
const auto nativeIndexes = metadata.nativeIndexes();
const auto &renamedFiles = m_ltAddTorrentParams.renamed_files;
m_indexMap.reserve(filePaths.size());
for (int i = 0; i < filePaths.size(); ++i)
{
const auto nativeIndex = nativeIndexes.at(i);
m_indexMap[nativeIndex] = i;
if (const auto it = renamedFiles.find(nativeIndex); it != renamedFiles.cend())
filePaths[i] = QString::fromStdString(it->second);
}
m_session->findIncompleteFiles(metadata, savePath(), downloadPath(), filePaths);
}
else
@ -1929,6 +1948,9 @@ void TorrentImpl::handleFileRenameFailedAlert(const lt::file_rename_failed_alert
void TorrentImpl::handleFileCompletedAlert(const lt::file_completed_alert *p)
{
if (m_maintenanceJob == MaintenanceJob::HandleMetadata)
return;
if (m_session->isAppendExtensionEnabled())
{
const int fileIndex = m_indexMap.value(p->index, -1);