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#include "minecraft/JarUtils.h"
#include <quazip.h>
#include <quazipfile.h>
#include <JlCompress.h>
#include <QDebug>
namespace JarUtils {
bool mergeZipFiles(QuaZip *into, QFileInfo from, QSet<QString> &contained,
std::function<bool(QString)> filter)
{
QuaZip modZip(from.filePath());
modZip.open(QuaZip::mdUnzip);
QuaZipFile fileInsideMod(&modZip);
QuaZipFile zipOutFile(into);
for (bool more = modZip.goToFirstFile(); more; more = modZip.goToNextFile())
{
QString filename = modZip.getCurrentFileName();
if (!filter(filename))
{
qDebug() << "Skipping file " << filename << " from "
<< from.fileName() << " - filtered";
continue;
}
if (contained.contains(filename))
{
qDebug() << "Skipping already contained file " << filename << " from "
<< from.fileName();
continue;
}
contained.insert(filename);
if (!fileInsideMod.open(QIODevice::ReadOnly))
{
qCritical() << "Failed to open " << filename << " from " << from.fileName();
return false;
}
QuaZipNewInfo info_out(fileInsideMod.getActualFileName());
if (!zipOutFile.open(QIODevice::WriteOnly, info_out))
{
qCritical() << "Failed to open " << filename << " in the jar";
fileInsideMod.close();
return false;
}
if (!JlCompress::copyData(fileInsideMod, zipOutFile))
{
zipOutFile.close();
fileInsideMod.close();
qCritical() << "Failed to copy data of " << filename << " into the jar";
return false;
}
zipOutFile.close();
fileInsideMod.close();
}
return true;
}
bool createModdedJar(QString sourceJarPath, QString targetJarPath, const QList<Mod>& mods)
{
QuaZip zipOut(targetJarPath);
if (!zipOut.open(QuaZip::mdCreate))
{
QFile::remove(targetJarPath);
qCritical() << "Failed to open the minecraft.jar for modding";
return false;
}
// Files already added to the jar.
// These files will be skipped.
QSet<QString> addedFiles;
// Modify the jar
QListIterator<Mod> i(mods);
i.toBack();
while (i.hasPrevious())
{
const Mod &mod = i.previous();
// do not merge disabled mods.
if (!mod.enabled())
continue;
if (mod.type() == Mod::MOD_ZIPFILE)
{
if (!mergeZipFiles(&zipOut, mod.filename(), addedFiles, noFilter))
{
zipOut.close();
QFile::remove(targetJarPath);
qCritical() << "Failed to add" << mod.filename().fileName() << "to the jar.";
return false;
}
}
else if (mod.type() == Mod::MOD_SINGLEFILE)
{
auto filename = mod.filename();
if (!JlCompress::compressFile(&zipOut, filename.absoluteFilePath(),
filename.fileName()))
{
zipOut.close();
QFile::remove(targetJarPath);
qCritical() << "Failed to add" << mod.filename().fileName() << "to the jar.";
return false;
}
addedFiles.insert(filename.fileName());
}
else if (mod.type() == Mod::MOD_FOLDER)
{
auto filename = mod.filename();
QString what_to_zip = filename.absoluteFilePath();
QDir dir(what_to_zip);
dir.cdUp();
QString parent_dir = dir.absolutePath();
if (!JlCompress::compressSubDir(&zipOut, what_to_zip, parent_dir, true, addedFiles))
{
zipOut.close();
QFile::remove(targetJarPath);
qCritical() << "Failed to add" << mod.filename().fileName() << "to the jar.";
return false;
}
qDebug() << "Adding folder " << filename.fileName() << " from "
<< filename.absoluteFilePath();
}
}
if (!mergeZipFiles(&zipOut, QFileInfo(sourceJarPath), addedFiles, metaInfFilter))
{
zipOut.close();
QFile::remove(targetJarPath);
qCritical() << "Failed to insert minecraft.jar contents.";
return false;
}
// Recompress the jar
zipOut.close();
if (zipOut.getZipError() != 0)
{
QFile::remove(targetJarPath);
qCritical() << "Failed to finalize minecraft.jar!";
return false;
}
return true;
}
bool noFilter(QString)
{
return true;
}
bool metaInfFilter(QString key)
{
if(key.contains("META-INF"))
{
return false;
}
return true;
}
}
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