Add 'meshmc/' from commit 'fad6a1066616b69d7f5fef01178efdf014c59537'

git-subtree-dir: meshmc
git-subtree-mainline: 934382c8a1ce738589dee9ee0f14e1cec812770e
git-subtree-split: fad6a1066616b69d7f5fef01178efdf014c59537

1 files changed, 168 insertions, 0 deletions

diff --git a/meshmc/launcher/modplatform/technic/SingleZipPackInstallTask.cpp b/meshmc/launcher/modplatform/technic/SingleZipPackInstallTask.cpp
new file mode 100644
index 0000000000..e197ccbcd9
--- /dev/null
+++ b/meshmc/launcher/modplatform/technic/SingleZipPackInstallTask.cpp
@@ -0,0 +1,168 @@
+/* SPDX-FileCopyrightText: 2026 Project Tick
+ * SPDX-FileContributor: Project Tick
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ *   MeshMC - A Custom Launcher for Minecraft
+ *   Copyright (C) 2026 Project Tick
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ *  This file incorporates work covered by the following copyright and
+ *  permission notice:
+ *
+ * Copyright 2013-2021 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "SingleZipPackInstallTask.h"
+
+#include <QtConcurrent>
+
+#include "MMCZip.h"
+#include "TechnicPackProcessor.h"
+#include "FileSystem.h"
+
+#include "Application.h"
+
+Technic::SingleZipPackInstallTask::SingleZipPackInstallTask(
+	const QUrl& sourceUrl, const QString& minecraftVersion)
+{
+	m_sourceUrl = sourceUrl;
+	m_minecraftVersion = minecraftVersion;
+}
+
+bool Technic::SingleZipPackInstallTask::abort()
+{
+	if (m_abortable) {
+		return m_filesNetJob->abort();
+	}
+	return false;
+}
+
+void Technic::SingleZipPackInstallTask::executeTask()
+{
+	setStatus(tr("Downloading modpack:\n%1").arg(m_sourceUrl.toString()));
+
+	const QString path = m_sourceUrl.host() + '/' + m_sourceUrl.path();
+	auto entry = APPLICATION->metacache()->resolveEntry("general", path);
+	entry->setStale(true);
+	m_filesNetJob = new NetJob(tr("Modpack download"), APPLICATION->network());
+	m_filesNetJob->addNetAction(Net::Download::makeCached(m_sourceUrl, entry));
+	m_archivePath = entry->getFullPath();
+	auto job = m_filesNetJob.get();
+	connect(job, &NetJob::succeeded, this,
+			&Technic::SingleZipPackInstallTask::downloadSucceeded);
+	connect(job, &NetJob::progress, this,
+			&Technic::SingleZipPackInstallTask::downloadProgressChanged);
+	connect(job, &NetJob::failed, this,
+			&Technic::SingleZipPackInstallTask::downloadFailed);
+	m_filesNetJob->start();
+}
+
+void Technic::SingleZipPackInstallTask::downloadSucceeded()
+{
+	m_abortable = false;
+
+	setStatus(tr("Extracting modpack"));
+	QDir extractDir(FS::PathCombine(m_stagingPath, ".minecraft"));
+	qDebug() << "Attempting to create instance from" << m_archivePath;
+
+	QString archivePath = m_archivePath;
+	QString extractPath = extractDir.absolutePath();
+	m_extractFuture = QtConcurrent::run(
+		QThreadPool::globalInstance(), [archivePath, extractPath]() {
+			return MMCZip::extractSubDir(archivePath, QString(""), extractPath);
+		});
+	connect(&m_extractFutureWatcher, &QFutureWatcher<QStringList>::finished,
+			this, &Technic::SingleZipPackInstallTask::extractFinished);
+	connect(&m_extractFutureWatcher, &QFutureWatcher<QStringList>::canceled,
+			this, &Technic::SingleZipPackInstallTask::extractAborted);
+	m_extractFutureWatcher.setFuture(m_extractFuture);
+	m_filesNetJob.reset();
+}
+
+void Technic::SingleZipPackInstallTask::downloadFailed(QString reason)
+{
+	m_abortable = false;
+	emitFailed(reason);
+	m_filesNetJob.reset();
+}
+
+void Technic::SingleZipPackInstallTask::downloadProgressChanged(qint64 current,
+																qint64 total)
+{
+	m_abortable = true;
+	setProgress(current / 2, total);
+}
+
+void Technic::SingleZipPackInstallTask::extractFinished()
+{
+	if (!m_extractFuture.result()) {
+		emitFailed(tr("Failed to extract modpack"));
+		return;
+	}
+	QDir extractDir(m_stagingPath);
+
+	qDebug() << "Fixing permissions for extracted pack files...";
+	QDirIterator it(extractDir, QDirIterator::Subdirectories);
+	while (it.hasNext()) {
+		auto filepath = it.next();
+		QFileInfo file(filepath);
+		auto permissions = QFile::permissions(filepath);
+		auto origPermissions = permissions;
+		if (file.isDir()) {
+			// Folder +rwx for current user
+			permissions |= QFileDevice::Permission::ReadUser |
+						   QFileDevice::Permission::WriteUser |
+						   QFileDevice::Permission::ExeUser;
+		} else {
+			// File +rw for current user
+			permissions |= QFileDevice::Permission::ReadUser |
+						   QFileDevice::Permission::WriteUser;
+		}
+		if (origPermissions != permissions) {
+			if (!QFile::setPermissions(filepath, permissions)) {
+				logWarning(
+					tr("Could not fix permissions for %1").arg(filepath));
+			} else {
+				qDebug() << "Fixed" << filepath;
+			}
+		}
+	}
+
+	shared_qobject_ptr<Technic::TechnicPackProcessor> packProcessor =
+		new Technic::TechnicPackProcessor();
+	connect(packProcessor.get(), &Technic::TechnicPackProcessor::succeeded,
+			this, &Technic::SingleZipPackInstallTask::emitSucceeded);
+	connect(packProcessor.get(), &Technic::TechnicPackProcessor::failed, this,
+			&Technic::SingleZipPackInstallTask::emitFailed);
+	packProcessor->run(m_globalSettings, m_instName, m_instIcon, m_stagingPath,
+					   m_minecraftVersion);
+}
+
+void Technic::SingleZipPackInstallTask::extractAborted()
+{
+	emitFailed(tr("Instance import has been aborted."));
+}