119 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			119 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/* Copyright 2013-2021 MultiMC Contributors
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 *
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 *     http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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#include "ExtractNatives.h"
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#include <minecraft/MinecraftInstance.h>
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#include <launch/LaunchTask.h>
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#include <quazip/quazip.h>
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#include <quazip/quazipdir.h>
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#include "MMCZip.h"
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#include "FileSystem.h"
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#include <QDir>
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#ifdef major
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    #undef major
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#endif
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#ifdef minor
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    #undef minor
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#endif
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static QString replaceSuffix (QString target, const QString &suffix, const QString &replacement)
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{
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    if (!target.endsWith(suffix))
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    {
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        return target;
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    }
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    target.resize(target.length() - suffix.length());
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    return target + replacement;
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}
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static bool unzipNatives(QString source, QString targetFolder, bool applyJnilibHack, bool nativeOpenAL, bool nativeGLFW)
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{
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    QuaZip zip(source);
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    if(!zip.open(QuaZip::mdUnzip))
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    {
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        return false;
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    }
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    QDir directory(targetFolder);
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    if (!zip.goToFirstFile())
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    {
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        return false;
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    }
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    do
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    {
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        QString name = zip.getCurrentFileName();
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        auto lowercase = name.toLower();
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        if (nativeGLFW && name.contains("glfw")) {
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            continue;
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        }
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        if (nativeOpenAL && name.contains("openal")) {
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            continue;
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        }
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        if(applyJnilibHack)
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        {
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            name = replaceSuffix(name, ".jnilib", ".dylib");
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        }
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        QString absFilePath = directory.absoluteFilePath(name);
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        if (!JlCompress::extractFile(&zip, "", absFilePath))
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        {
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            return false;
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        }
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    } while (zip.goToNextFile());
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    zip.close();
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    if(zip.getZipError()!=0)
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    {
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        return false;
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    }
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    return true;
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}
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void ExtractNatives::executeTask()
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{
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    auto instance = m_parent->instance();
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    std::shared_ptr<MinecraftInstance> minecraftInstance = std::dynamic_pointer_cast<MinecraftInstance>(instance);
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    auto toExtract = minecraftInstance->getNativeJars();
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    if(toExtract.isEmpty())
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    {
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        emitSucceeded();
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        return;
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    }
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    auto settings = minecraftInstance->settings();
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    bool nativeOpenAL = settings->get("UseNativeOpenAL").toBool();
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    bool nativeGLFW = settings->get("UseNativeGLFW").toBool();
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    auto outputPath  = minecraftInstance->getNativePath();
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    auto javaVersion = minecraftInstance->getJavaVersion();
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    bool jniHackEnabled = javaVersion.major() >= 8;
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    for(const auto &source: toExtract)
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    {
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        if(!unzipNatives(source, outputPath, jniHackEnabled, nativeOpenAL, nativeGLFW))
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        {
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            const char *reason = QT_TR_NOOP("Couldn't extract native jar '%1' to destination '%2'");
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            emit logLine(QString(reason).arg(source, outputPath), MessageLevel::Fatal);
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            emitFailed(tr(reason).arg(source, outputPath));
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        }
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    }
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    emitSucceeded();
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}
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void ExtractNatives::finalize()
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{
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    auto instance = m_parent->instance();
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    QString target_dir = FS::PathCombine(instance->instanceRoot(), "natives/");
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    QDir dir(target_dir);
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    dir.removeRecursively();
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}
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