mirror of
https://github.com/MultiMC/MultiMC5.git
synced 2024-12-29 00:20:21 +00:00
492 lines
11 KiB
C++
492 lines
11 KiB
C++
/*
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Copyright (C) 2010 Roberto Pompermaier
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Copyright (C) 2005-2014 Sergey A. Tachenov
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Parts of this file were part of QuaZIP.
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QuaZIP is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2.1 of the License, or
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(at your option) any later version.
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QuaZIP is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with QuaZIP. If not, see <http://www.gnu.org/licenses/>.
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See COPYING file for the full LGPL text.
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Original ZIP package is copyrighted by Gilles Vollant and contributors,
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see quazip/(un)MMCZip.h files for details. Basically it's the zlib license.
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*/
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#include <quazip.h>
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#include <JlCompress.h>
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#include <quazipdir.h>
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#include "MMCZip.h"
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#include "FileSystem.h"
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#include <QDebug>
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bool copyData(QIODevice &inFile, QIODevice &outFile)
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{
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while (!inFile.atEnd())
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{
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char buf[4096];
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qint64 readLen = inFile.read(buf, 4096);
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if (readLen <= 0)
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return false;
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if (outFile.write(buf, readLen) != readLen)
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return false;
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}
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return true;
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}
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QStringList MMCZip::extractDir(QString fileCompressed, QString dir)
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{
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return JlCompress::extractDir(fileCompressed, dir);
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}
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bool compressFile(QuaZip *zip, QString fileName, QString fileDest)
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{
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if (!zip)
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{
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return false;
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}
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if (zip->getMode() != QuaZip::mdCreate && zip->getMode() != QuaZip::mdAppend &&
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zip->getMode() != QuaZip::mdAdd)
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{
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return false;
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}
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QFile inFile;
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inFile.setFileName(fileName);
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if (!inFile.open(QIODevice::ReadOnly))
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{
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return false;
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}
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QuaZipFile outFile(zip);
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if (!outFile.open(QIODevice::WriteOnly, QuaZipNewInfo(fileDest, inFile.fileName())))
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{
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return false;
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}
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if (!copyData(inFile, outFile) || outFile.getZipError() != UNZ_OK)
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{
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return false;
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}
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outFile.close();
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if (outFile.getZipError() != UNZ_OK)
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{
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return false;
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}
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inFile.close();
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return true;
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}
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bool MMCZip::compressSubDir(QuaZip* zip, QString dir, QString origDir, QSet<QString>& added, QString prefix, const SeparatorPrefixTree <'/'> * blacklist)
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{
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if (!zip) return false;
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if (zip->getMode()!=QuaZip::mdCreate && zip->getMode()!=QuaZip::mdAppend && zip->getMode()!=QuaZip::mdAdd)
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{
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return false;
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}
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QDir directory(dir);
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if (!directory.exists())
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{
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return false;
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}
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QDir origDirectory(origDir);
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if (dir != origDir)
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{
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QString internalDirName = origDirectory.relativeFilePath(dir);
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if(!blacklist || !blacklist->covers(internalDirName))
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{
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QuaZipFile dirZipFile(zip);
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auto dirPrefix = FS::PathCombine(prefix, origDirectory.relativeFilePath(dir)) + "/";
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if (!dirZipFile.open(QIODevice::WriteOnly, QuaZipNewInfo(dirPrefix, dir), 0, 0, 0))
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{
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return false;
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}
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dirZipFile.close();
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}
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}
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QFileInfoList files = directory.entryInfoList(QDir::AllDirs | QDir::NoDotAndDotDot | QDir::Hidden);
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for (auto file: files)
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{
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if(!file.isDir())
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{
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continue;
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}
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if(!compressSubDir(zip,file.absoluteFilePath(),origDir, added, prefix, blacklist))
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{
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return false;
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}
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}
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files = directory.entryInfoList(QDir::Files);
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for (auto file: files)
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{
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if(!file.isFile())
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{
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continue;
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}
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if(file.absoluteFilePath()==zip->getZipName())
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{
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continue;
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}
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QString filename = origDirectory.relativeFilePath(file.absoluteFilePath());
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if(blacklist && blacklist->covers(filename))
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{
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continue;
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}
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if(prefix.size())
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{
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filename = FS::PathCombine(prefix, filename);
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}
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added.insert(filename);
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if (!compressFile(zip,file.absoluteFilePath(),filename))
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{
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return false;
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}
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}
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return true;
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}
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bool MMCZip::mergeZipFiles(QuaZip *into, QFileInfo from, QSet<QString> &contained,
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std::function<bool(QString)> filter)
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{
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QuaZip modZip(from.filePath());
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modZip.open(QuaZip::mdUnzip);
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QuaZipFile fileInsideMod(&modZip);
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QuaZipFile zipOutFile(into);
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for (bool more = modZip.goToFirstFile(); more; more = modZip.goToNextFile())
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{
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QString filename = modZip.getCurrentFileName();
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if (!filter(filename))
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{
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qDebug() << "Skipping file " << filename << " from "
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<< from.fileName() << " - filtered";
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continue;
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}
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if (contained.contains(filename))
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{
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qDebug() << "Skipping already contained file " << filename << " from "
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<< from.fileName();
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continue;
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}
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contained.insert(filename);
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if (!fileInsideMod.open(QIODevice::ReadOnly))
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{
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qCritical() << "Failed to open " << filename << " from " << from.fileName();
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return false;
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}
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QuaZipNewInfo info_out(fileInsideMod.getActualFileName());
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if (!zipOutFile.open(QIODevice::WriteOnly, info_out))
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{
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qCritical() << "Failed to open " << filename << " in the jar";
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fileInsideMod.close();
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return false;
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}
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if (!copyData(fileInsideMod, zipOutFile))
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{
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zipOutFile.close();
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fileInsideMod.close();
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qCritical() << "Failed to copy data of " << filename << " into the jar";
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return false;
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}
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zipOutFile.close();
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fileInsideMod.close();
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}
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return true;
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}
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bool MMCZip::createModdedJar(QString sourceJarPath, QString targetJarPath, const QList<Mod>& mods)
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{
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QuaZip zipOut(targetJarPath);
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if (!zipOut.open(QuaZip::mdCreate))
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{
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QFile::remove(targetJarPath);
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qCritical() << "Failed to open the minecraft.jar for modding";
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return false;
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}
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// Files already added to the jar.
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// These files will be skipped.
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QSet<QString> addedFiles;
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// Modify the jar
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QListIterator<Mod> i(mods);
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i.toBack();
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while (i.hasPrevious())
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{
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const Mod &mod = i.previous();
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// do not merge disabled mods.
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if (!mod.enabled())
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continue;
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if (mod.type() == Mod::MOD_ZIPFILE)
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{
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if (!mergeZipFiles(&zipOut, mod.filename(), addedFiles, noFilter))
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{
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zipOut.close();
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QFile::remove(targetJarPath);
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qCritical() << "Failed to add" << mod.filename().fileName() << "to the jar.";
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return false;
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}
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}
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else if (mod.type() == Mod::MOD_SINGLEFILE)
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{
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auto filename = mod.filename();
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if (!compressFile(&zipOut, filename.absoluteFilePath(),
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filename.fileName()))
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{
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zipOut.close();
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QFile::remove(targetJarPath);
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qCritical() << "Failed to add" << mod.filename().fileName() << "to the jar.";
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return false;
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}
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addedFiles.insert(filename.fileName());
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}
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else if (mod.type() == Mod::MOD_FOLDER)
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{
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auto filename = mod.filename();
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QString what_to_zip = filename.absoluteFilePath();
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QDir dir(what_to_zip);
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dir.cdUp();
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QString parent_dir = dir.absolutePath();
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if (!compressSubDir(&zipOut, what_to_zip, parent_dir, addedFiles))
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{
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zipOut.close();
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QFile::remove(targetJarPath);
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qCritical() << "Failed to add" << mod.filename().fileName() << "to the jar.";
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return false;
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}
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qDebug() << "Adding folder " << filename.fileName() << " from "
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<< filename.absoluteFilePath();
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}
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}
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if (!mergeZipFiles(&zipOut, QFileInfo(sourceJarPath), addedFiles, metaInfFilter))
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{
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zipOut.close();
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QFile::remove(targetJarPath);
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qCritical() << "Failed to insert minecraft.jar contents.";
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return false;
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}
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// Recompress the jar
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zipOut.close();
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if (zipOut.getZipError() != 0)
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{
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QFile::remove(targetJarPath);
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qCritical() << "Failed to finalize minecraft.jar!";
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return false;
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}
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return true;
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}
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bool MMCZip::noFilter(QString)
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{
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return true;
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}
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bool MMCZip::metaInfFilter(QString key)
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{
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if(key.contains("META-INF"))
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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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bool MMCZip::compressDir(QString zipFile, QString dir, QString prefix, const SeparatorPrefixTree <'/'> * blacklist)
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{
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QuaZip zip(zipFile);
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QDir().mkpath(QFileInfo(zipFile).absolutePath());
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if(!zip.open(QuaZip::mdCreate))
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{
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QFile::remove(zipFile);
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return false;
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}
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QSet<QString> added;
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if (!compressSubDir(&zip, dir, dir, added, prefix, blacklist))
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{
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QFile::remove(zipFile);
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return false;
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}
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zip.close();
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if(zip.getZipError()!=0)
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{
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QFile::remove(zipFile);
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return false;
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}
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return true;
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}
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QString MMCZip::findFileInZip(QuaZip * zip, const QString & what, const QString &root)
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{
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QuaZipDir rootDir(zip, root);
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for(auto fileName: rootDir.entryList(QDir::Files))
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{
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if(fileName == what)
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return root;
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}
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for(auto fileName: rootDir.entryList(QDir::Dirs))
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{
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QString result = findFileInZip(zip, what, root + fileName);
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if(!result.isEmpty())
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{
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return result;
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}
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}
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return QString();
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}
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bool MMCZip::findFilesInZip(QuaZip * zip, const QString & what, QStringList & result, const QString &root)
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{
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QuaZipDir rootDir(zip, root);
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for(auto fileName: rootDir.entryList(QDir::Files))
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{
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if(fileName == what)
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{
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result.append(root);
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return true;
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}
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}
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for(auto fileName: rootDir.entryList(QDir::Dirs))
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{
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findFilesInZip(zip, what, result, root + fileName);
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}
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return !result.isEmpty();
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}
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bool removeFile(QStringList listFile)
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{
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bool ret = true;
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for (int i = 0; i < listFile.count(); i++)
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{
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ret &= QFile::remove(listFile.at(i));
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}
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return ret;
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}
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bool MMCZip::extractFile(QuaZip *zip, const QString &fileName, const QString &fileDest)
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{
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if(!zip)
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return false;
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if (zip->getMode() != QuaZip::mdUnzip)
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return false;
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if (!fileName.isEmpty())
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zip->setCurrentFile(fileName);
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QuaZipFile inFile(zip);
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if (!inFile.open(QIODevice::ReadOnly) || inFile.getZipError() != UNZ_OK)
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return false;
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// Controllo esistenza cartella file risultato
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QDir curDir;
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if (fileDest.endsWith('/'))
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{
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if (!curDir.mkpath(fileDest))
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{
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return false;
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}
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}
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else
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{
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if (!curDir.mkpath(QFileInfo(fileDest).absolutePath()))
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{
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return false;
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}
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}
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QuaZipFileInfo64 info;
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if (!zip->getCurrentFileInfo(&info))
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return false;
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QFile::Permissions srcPerm = info.getPermissions();
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if (fileDest.endsWith('/') && QFileInfo(fileDest).isDir())
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{
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if (srcPerm != 0)
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{
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QFile(fileDest).setPermissions(srcPerm);
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}
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return true;
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}
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QFile outFile;
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outFile.setFileName(fileDest);
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if (!outFile.open(QIODevice::WriteOnly))
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return false;
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if (!copyData(inFile, outFile) || inFile.getZipError() != UNZ_OK)
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{
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outFile.close();
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removeFile(QStringList(fileDest));
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return false;
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}
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outFile.close();
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inFile.close();
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if (inFile.getZipError() != UNZ_OK)
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{
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removeFile(QStringList(fileDest));
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return false;
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}
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if (srcPerm != 0)
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{
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outFile.setPermissions(srcPerm);
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}
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return true;
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}
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QStringList MMCZip::extractSubDir(QuaZip *zip, const QString & subdir, const QString &target)
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{
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QDir directory(target);
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QStringList extracted;
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if (!zip->goToFirstFile())
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{
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return QStringList();
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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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if(!name.startsWith(subdir))
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{
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continue;
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}
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name.remove(0, subdir.size());
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QString absFilePath = directory.absoluteFilePath(name);
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if(name.isEmpty())
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{
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absFilePath += "/";
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}
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if (!extractFile(zip, "", absFilePath))
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{
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removeFile(extracted);
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return QStringList();
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}
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extracted.append(absFilePath);
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} while (zip->goToNextFile());
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return extracted;
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}
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