diff options
Diffstat (limited to 'archived/projt-launcher/launcher/minecraft/launch/ExtractNatives.cpp')
| -rw-r--r-- | archived/projt-launcher/launcher/minecraft/launch/ExtractNatives.cpp | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/archived/projt-launcher/launcher/minecraft/launch/ExtractNatives.cpp b/archived/projt-launcher/launcher/minecraft/launch/ExtractNatives.cpp new file mode 100644 index 0000000000..4ac7e484dc --- /dev/null +++ b/archived/projt-launcher/launcher/minecraft/launch/ExtractNatives.cpp @@ -0,0 +1,161 @@ +// SPDX-License-Identifier: GPL-3.0-only +// SPDX-FileCopyrightText: 2026 Project Tick +// SPDX-FileContributor: Project Tick Team +/* + * ProjT Launcher - Minecraft Launcher + * Copyright (C) 2026 Project Tick + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, version 3. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "ExtractNatives.hpp" +#include <launch/LaunchPipeline.hpp> +#include <minecraft/MinecraftInstance.h> + +#include <quazip/quazip.h> +#include <quazip/quazipdir.h> +#include <quazip/quazipfile.h> +#include <quazip/quazipfileinfo.h> +#include <QDir> +#include "FileSystem.h" +#include "MMCZip.h" + +#ifdef major +#undef major +#endif +#ifdef minor +#undef minor +#endif + +static QString replaceSuffix(QString target, const QString& suffix, const QString& replacement) +{ + if (!target.endsWith(suffix)) + { + return target; + } + target.resize(target.length() - suffix.length()); + return target + replacement; +} + +static bool isWithinExtractionRoot(const QDir& root, const QString& path) +{ + const auto cleanRoot = QDir::cleanPath(root.absolutePath()); + const auto cleanPath = QDir::cleanPath(path); + return cleanPath == cleanRoot || cleanPath.startsWith(cleanRoot + '/'); +} + +static bool symlinkEscapesExtractionRoot(QuaZip& zip, const QString& outputPath, const QDir& root) +{ + QuaZipFileInfo64 info; + if (!zip.getCurrentFileInfo(&info) || !info.isSymbolicLink()) + { + return false; + } + + QuaZipFile linkFile(&zip); + if (!linkFile.open(QIODevice::ReadOnly)) + { + return true; + } + + const auto linkTarget = QFile::decodeName(linkFile.readAll()); + linkFile.close(); + + QString resolvedTarget; + if (QDir::isAbsolutePath(linkTarget)) + { + resolvedTarget = QDir::cleanPath(linkTarget); + } + else + { + const auto outputDir = QFileInfo(outputPath).dir(); + resolvedTarget = QDir::cleanPath(outputDir.absoluteFilePath(linkTarget)); + } + + return !isWithinExtractionRoot(root, resolvedTarget); +} + +static bool unzipNatives(QString source, QString targetFolder, bool applyJnilibHack) +{ + QuaZip zip(source); + if (!zip.open(QuaZip::mdUnzip)) + { + return false; + } + QDir directory(targetFolder); + if (!zip.goToFirstFile()) + { + return false; + } + do + { + QString name = zip.getCurrentFileName(); + auto lowercase = name.toLower(); + if (applyJnilibHack) + { + name = replaceSuffix(name, ".jnilib", ".dylib"); + } + QString absFilePath = directory.absoluteFilePath(name); + if (symlinkEscapesExtractionRoot(zip, absFilePath, directory)) + { + return false; + } + if (!JlCompress::extractFile(&zip, "", absFilePath)) + { + return false; + } + } + while (zip.goToNextFile()); + zip.close(); + if (zip.getZipError() != 0) + { + return false; + } + return true; +} + +void ExtractNatives::executeTask() +{ + auto instance = m_flow->instance(); + auto toExtract = instance->getNativeJars(); + if (toExtract.isEmpty()) + { + emitSucceeded(); + return; + } + auto settings = instance->settings(); + + auto outputPath = instance->getNativePath(); + FS::ensureFolderPathExists(outputPath); + auto javaVersion = instance->getRuntimeVersion(); + bool jniHackEnabled = javaVersion.major() >= 8; + for (const auto& source : toExtract) + { + if (!unzipNatives(source, outputPath, jniHackEnabled)) + { + const char* reason = QT_TR_NOOP("Couldn't extract native jar '%1' to destination '%2'"); + emit logLine(QString(reason).arg(source, outputPath), MessageLevel::Fatal); + emitFailed(tr(reason).arg(source, outputPath)); + } + } + emitSucceeded(); +} + +void ExtractNatives::finalize() +{ + auto instance = m_flow->instance(); + QString target_dir = FS::PathCombine(instance->instanceRoot(), "natives/"); + QDir dir(target_dir); + dir.removeRecursively(); +} |