2022-12-10 08:56:05 +05:30
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// SPDX-FileCopyrightText: 2022 Rachel Powers <508861+Ryex@users.noreply.github.com>
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//
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// SPDX-License-Identifier: GPL-3.0-only
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/*
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* Prism Launcher - Minecraft Launcher
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* Copyright (C) 2022 Rachel Powers <508861+Ryex@users.noreply.github.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "LocalDataPackParseTask.h"
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#include "FileSystem.h"
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#include "Json.h"
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#include <quazip/quazip.h>
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#include <quazip/quazipdir.h>
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#include <quazip/quazipfile.h>
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#include <QCryptographicHash>
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namespace DataPackUtils {
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bool process(DataPack& pack, ProcessingLevel level)
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{
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switch (pack.type()) {
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case ResourceType::FOLDER:
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return DataPackUtils::processFolder(pack, level);
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case ResourceType::ZIPFILE:
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return DataPackUtils::processZIP(pack, level);
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default:
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qWarning() << "Invalid type for data pack parse task!";
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return false;
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}
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}
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bool processFolder(DataPack& pack, ProcessingLevel level)
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{
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Q_ASSERT(pack.type() == ResourceType::FOLDER);
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2022-12-27 02:59:13 +05:30
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auto mcmeta_invalid = [&pack]() {
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qWarning() << "Resource pack at" << pack.fileinfo().filePath() << "does not have a valid pack.mcmeta";
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return false; // the mcmeta is not optional
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};
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2022-12-10 08:56:05 +05:30
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QFileInfo mcmeta_file_info(FS::PathCombine(pack.fileinfo().filePath(), "pack.mcmeta"));
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if (mcmeta_file_info.exists() && mcmeta_file_info.isFile()) {
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QFile mcmeta_file(mcmeta_file_info.filePath());
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if (!mcmeta_file.open(QIODevice::ReadOnly))
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return mcmeta_invalid(); // can't open mcmeta file
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auto data = mcmeta_file.readAll();
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bool mcmeta_result = DataPackUtils::processMCMeta(pack, std::move(data));
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mcmeta_file.close();
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if (!mcmeta_result) {
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return mcmeta_invalid(); // mcmeta invalid
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}
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} else {
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return mcmeta_invalid(); // mcmeta file isn't a valid file
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}
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QFileInfo data_dir_info(FS::PathCombine(pack.fileinfo().filePath(), "data"));
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if (!data_dir_info.exists() || !data_dir_info.isDir()) {
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return false; // data dir does not exists or isn't valid
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}
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if (level == ProcessingLevel::BasicInfoOnly) {
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return true; // only need basic info already checked
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}
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return true; // all tests passed
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}
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bool processZIP(DataPack& pack, ProcessingLevel level)
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{
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Q_ASSERT(pack.type() == ResourceType::ZIPFILE);
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QuaZip zip(pack.fileinfo().filePath());
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if (!zip.open(QuaZip::mdUnzip))
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return false; // can't open zip file
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QuaZipFile file(&zip);
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auto mcmeta_invalid = [&pack]() {
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qWarning() << "Resource pack at" << pack.fileinfo().filePath() << "does not have a valid pack.mcmeta";
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return false; // the mcmeta is not optional
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};
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if (zip.setCurrentFile("pack.mcmeta")) {
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if (!file.open(QIODevice::ReadOnly)) {
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qCritical() << "Failed to open file in zip.";
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zip.close();
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return mcmeta_invalid();
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}
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auto data = file.readAll();
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bool mcmeta_result = DataPackUtils::processMCMeta(pack, std::move(data));
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file.close();
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if (!mcmeta_result) {
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return mcmeta_invalid(); // mcmeta invalid
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}
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} else {
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return mcmeta_invalid(); // could not set pack.mcmeta as current file.
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}
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QuaZipDir zipDir(&zip);
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if (!zipDir.exists("/data")) {
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return false; // data dir does not exists at zip root
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}
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if (level == ProcessingLevel::BasicInfoOnly) {
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zip.close();
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return true; // only need basic info already checked
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}
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zip.close();
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return true;
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}
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2022-12-27 02:59:13 +05:30
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// https://minecraft.fandom.com/wiki/Data_pack#pack.mcmeta
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bool processMCMeta(DataPack& pack, QByteArray&& raw_data)
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{
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try {
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auto json_doc = QJsonDocument::fromJson(raw_data);
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auto pack_obj = Json::requireObject(json_doc.object(), "pack", {});
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pack.setPackFormat(Json::ensureInteger(pack_obj, "pack_format", 0));
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pack.setDescription(Json::ensureString(pack_obj, "description", ""));
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} catch (Json::JsonException& e) {
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qWarning() << "JsonException: " << e.what() << e.cause();
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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 validate(QFileInfo file)
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{
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DataPack dp{ file };
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return DataPackUtils::process(dp, ProcessingLevel::BasicInfoOnly) && dp.valid();
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}
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} // namespace DataPackUtils
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LocalDataPackParseTask::LocalDataPackParseTask(int token, DataPack& dp) : Task(nullptr, false), m_token(token), m_data_pack(dp) {}
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bool LocalDataPackParseTask::abort()
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{
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m_aborted = true;
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return true;
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}
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void LocalDataPackParseTask::executeTask()
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{
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if (!DataPackUtils::process(m_data_pack))
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return;
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if (m_aborted)
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emitAborted();
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else
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emitSucceeded();
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}
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