pollymc/launcher/minecraft/mod/tasks/LocalResourcePackParseTask.cpp

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#include "LocalResourcePackParseTask.h"
#include "FileSystem.h"
#include "Json.h"
#include <quazip/quazip.h>
#include <quazip/quazipfile.h>
LocalResourcePackParseTask::LocalResourcePackParseTask(int token, ResourcePack& rp)
: Task(nullptr, false), m_token(token), m_resource_pack(rp)
{}
bool LocalResourcePackParseTask::abort()
{
m_aborted = true;
return true;
}
void LocalResourcePackParseTask::executeTask()
{
switch (m_resource_pack.type()) {
case ResourceType::FOLDER:
processAsFolder();
break;
case ResourceType::ZIPFILE:
processAsZip();
break;
default:
qWarning() << "Invalid type for resource pack parse task!";
emitFailed(tr("Invalid type."));
}
if (isFinished())
return;
if (m_aborted)
emitAborted();
else
emitSucceeded();
}
// https://minecraft.fandom.com/wiki/Tutorials/Creating_a_resource_pack#Formatting_pack.mcmeta
void LocalResourcePackParseTask::processMCMeta(QByteArray&& raw_data)
{
try {
auto json_doc = QJsonDocument::fromJson(raw_data);
auto pack_obj = Json::requireObject(json_doc.object(), "pack", {});
m_resource_pack.setPackFormat(Json::ensureInteger(pack_obj, "pack_format", 0));
m_resource_pack.setDescription(Json::ensureString(pack_obj, "description", ""));
} catch (Json::JsonException& e) {
qWarning() << "JsonException: " << e.what() << e.cause();
emitFailed(tr("Failed to process .mcmeta file."));
}
}
void LocalResourcePackParseTask::processAsFolder()
{
QFileInfo mcmeta_file_info(FS::PathCombine(m_resource_pack.fileinfo().filePath(), "pack.mcmeta"));
if (mcmeta_file_info.isFile()) {
QFile mcmeta_file(mcmeta_file_info.filePath());
if (!mcmeta_file.open(QIODevice::ReadOnly))
return;
auto data = mcmeta_file.readAll();
if (data.isEmpty() || data.isNull())
return;
processMCMeta(std::move(data));
}
}
void LocalResourcePackParseTask::processAsZip()
{
QuaZip zip(m_resource_pack.fileinfo().filePath());
if (!zip.open(QuaZip::mdUnzip))
return;
QuaZipFile file(&zip);
if (zip.setCurrentFile("pack.mcmeta")) {
if (!file.open(QIODevice::ReadOnly)) {
qCritical() << "Failed to open file in zip.";
zip.close();
return;
}
auto data = file.readAll();
processMCMeta(std::move(data));
file.close();
zip.close();
}
}