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/* Copyright 2013-2018 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "ExtractNatives.h"
#include <minecraft/MinecraftInstance.h>
#include <launch/LaunchTask.h>
#include <quazip.h>
#include <quazipdir.h>
#include "MMCZip.h"
#include "FileSystem.h"
#include <QDir>
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 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();
if(applyJnilibHack)
{
name = replaceSuffix(name, ".jnilib", ".dylib");
}
QString absFilePath = directory.absoluteFilePath(name);
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_parent->instance();
std::shared_ptr<MinecraftInstance> minecraftInstance = std::dynamic_pointer_cast<MinecraftInstance>(instance);
auto toExtract = minecraftInstance->getNativeJars();
if(toExtract.isEmpty())
{
emitSucceeded();
return;
}
auto outputPath = minecraftInstance->getNativePath();
auto javaVersion = minecraftInstance->getJavaVersion();
bool jniHackEnabled = javaVersion.major() >= 8;
for(const auto &source: toExtract)
{
if(!unzipNatives(source, outputPath, jniHackEnabled))
{
auto reason = tr("Couldn't extract native jar '%1' to destination '%2'").arg(source, outputPath);
emit logLine(reason, MessageLevel::Fatal);
emitFailed(reason);
}
}
emitSucceeded();
}
void ExtractNatives::finalize()
{
auto instance = m_parent->instance();
QString target_dir = FS::PathCombine(instance->instanceRoot(), "natives/");
QDir dir(target_dir);
dir.removeRecursively();
}
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