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Merge pull request #889 from flowln/fix_zip_extract

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Sefa Eyeoglu 2023-03-01 09:51:08 +01:00 committed by GitHub
commit 0eae9355e6
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3 changed files with 39 additions and 43 deletions
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18
launcher/InstanceImportTask.cpp
View File

@ -66,7 +66,12 @@ bool InstanceImportTask::abort()
if (m_filesNetJob)
m_filesNetJob->abort();
if (m_extractFuture.isRunning()) {
// NOTE: The tasks created by QtConcurrent::run() can't actually get cancelled,
// but we can use this call to check the state when the extraction finishes.
m_extractFuture.cancel();
m_extractFuture.waitForFinished();
}
return Task::abort();
}
@ -185,18 +190,20 @@ void InstanceImportTask::processZipPack()
// make sure we extract just the pack
m_extractFuture = QtConcurrent::run(QThreadPool::globalInstance(), MMCZip::extractSubDir, m_packZip.get(), root, extractDir.absolutePath());
connect(&m_extractFutureWatcher, &QFutureWatcher<QStringList>::finished, this, &InstanceImportTask::extractFinished);
connect(&m_extractFutureWatcher, &QFutureWatcher<QStringList>::canceled, this, &InstanceImportTask::extractAborted);
m_extractFutureWatcher.setFuture(m_extractFuture);
}
void InstanceImportTask::extractFinished()
{
m_packZip.reset();
if (!m_extractFuture.result())
{
if (m_extractFuture.isCanceled())
return;
if (!m_extractFuture.result().has_value()) {
emitFailed(tr("Failed to extract modpack"));
return;
}
QDir extractDir(m_stagingPath);
qDebug() << "Fixing permissions for extracted pack files...";
@ -250,11 +257,6 @@ void InstanceImportTask::extractFinished()
}
}
void InstanceImportTask::extractAborted()
{
emitAborted();
}
void InstanceImportTask::processFlame()
{
FlameCreationTask* inst_creation_task = nullptr;

1
launcher/InstanceImportTask.h
View File

@ -81,7 +81,6 @@ private slots:
void downloadProgressChanged(qint64 current, qint64 total);
void downloadAborted();
void extractFinished();
void extractAborted();
private: /* data */
NetJob::Ptr m_filesNetJob;

61
launcher/MMCZip.cpp
View File

@ -275,7 +275,7 @@ bool MMCZip::findFilesInZip(QuaZip * zip, const QString & what, QStringList & re
// ours
std::optional<QStringList> MMCZip::extractSubDir(QuaZip *zip, const QString & subdir, const QString &target)
{
auto absDirectoryUrl = QUrl::fromLocalFile(target);
auto target_top_dir = QUrl::fromLocalFile(target);
QStringList extracted;
@ -295,58 +295,53 @@ std::optional<QStringList> MMCZip::extractSubDir(QuaZip *zip, const QString & su
return std::nullopt;
}
do
{
QString name = zip->getCurrentFileName();
if(!name.startsWith(subdir))
{
do {
QString file_name = zip->getCurrentFileName();
if (!file_name.startsWith(subdir))
continue;
}
name.remove(0, subdir.size());
auto original_name = name;
auto relative_file_name = QDir::fromNativeSeparators(file_name.remove(0, subdir.size()));
auto original_name = relative_file_name;
// Fix subdirs/files ending with a / getting transformed into absolute paths
if(name.startsWith('/')){
name = name.mid(1);
}
if (relative_file_name.startsWith('/'))
relative_file_name = relative_file_name.mid(1);
// Fix weird "folders with a single file get squashed" thing
QString path;
if(name.contains('/') && !name.endsWith('/')){
path = name.section('/', 0, -2) + "/";
FS::ensureFolderPathExists(FS::PathCombine(target, path));
QString sub_path;
if (relative_file_name.contains('/') && !relative_file_name.endsWith('/')) {
sub_path = relative_file_name.section('/', 0, -2) + '/';
FS::ensureFolderPathExists(FS::PathCombine(target, sub_path));
name = name.split('/').last();
relative_file_name = relative_file_name.split('/').last();
}
QString absFilePath;
if(name.isEmpty())
{
absFilePath = FS::PathCombine(target, "/"); // FIXME this seems weird
}
else
{
absFilePath = FS::PathCombine(target, path + name);
QString target_file_path;
if (relative_file_name.isEmpty()) {
target_file_path = target + '/';
} else {
target_file_path = FS::PathCombine(target_top_dir.path(), sub_path, relative_file_name);
if (relative_file_name.endsWith('/') && !target_file_path.endsWith('/'))
target_file_path += '/';
}
if (!absDirectoryUrl.isParentOf(QUrl::fromLocalFile(absFilePath))) {
qWarning() << "Extracting" << name << "was cancelled, because it was effectively outside of the target path" << target;
if (!target_top_dir.isParentOf(QUrl::fromLocalFile(target_file_path))) {
qWarning() << "Extracting" << relative_file_name << "was cancelled, because it was effectively outside of the target path" << target;
return std::nullopt;
}
if (!JlCompress::extractFile(zip, "", absFilePath))
{
qWarning() << "Failed to extract file" << original_name << "to" << absFilePath;
if (!JlCompress::extractFile(zip, "", target_file_path)) {
qWarning() << "Failed to extract file" << original_name << "to" << target_file_path;
JlCompress::removeFile(extracted);
return std::nullopt;
}
extracted.append(absFilePath);
QFile::setPermissions(absFilePath, QFileDevice::Permission::ReadUser | QFileDevice::Permission::WriteUser | QFileDevice::Permission::ExeUser);
extracted.append(target_file_path);
QFile::setPermissions(target_file_path, QFileDevice::Permission::ReadUser | QFileDevice::Permission::WriteUser | QFileDevice::Permission::ExeUser);
qDebug() << "Extracted file" << name << "to" << absFilePath;
qDebug() << "Extracted file" << relative_file_name << "to" << target_file_path;
} while (zip->goToNextFile());
return extracted;
}