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// SPDX-License-Identifier: GPL-3.0-only
// SPDX-FileCopyrightText: 2026 Project Tick
// SPDX-FileContributor: Project Tick Team
/*
* ProjT Launcher - Minecraft Launcher
* 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, version 3.
*
* 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, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* === Upstream License Block (Do Not Modify) ==============================
*
*
*
* Prism Launcher - Minecraft Launcher
* Copyright (c) 2022-2023 flowln <flowlnlnln@gmail.com>
* Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
*
* 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, version 3.
*
* 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, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* ======================================================================== */
#include "ResourceDownloadTask.h"
#include "Application.h"
#include "minecraft/mod/ModFolderModel.hpp"
#include "minecraft/mod/ResourceFolderModel.hpp"
#include "modplatform/helpers/HashUtils.h"
#include "net/ApiDownload.h"
#include "net/ChecksumValidator.h"
ResourceDownloadTask::ResourceDownloadTask(ModPlatform::IndexedPack::Ptr pack,
ModPlatform::IndexedVersion version,
const std::shared_ptr<ResourceFolderModel> packs,
bool is_indexed,
QString custom_target_folder)
: m_pack(std::move(pack)),
m_pack_version(std::move(version)),
m_pack_model(packs),
m_custom_target_folder(custom_target_folder)
{
if (is_indexed)
{
m_update_task.reset(new LocalResourceUpdateTask(m_pack_model->indexDir(), *m_pack, m_pack_version));
connect(m_update_task.get(),
&LocalResourceUpdateTask::hasOldResource,
this,
&ResourceDownloadTask::hasOldResource);
addTask(m_update_task);
}
m_filesNetJob.reset(new NetJob(tr("Resource download"), APPLICATION->network()));
m_filesNetJob->setStatus(tr("Downloading resource:\n%1").arg(m_pack_version.downloadUrl));
QDir dir{ m_pack_model->dir() };
{
// Use relative path from metadata if available (Generic approach)
if (!m_pack_version.relativePath.isEmpty())
{
dir.cdUp(); // Go to base (minecraft directory assumption)
dir = QDir(dir.absoluteFilePath(m_pack_version.relativePath));
}
// Legacy/Manual override
else if (!m_custom_target_folder.isEmpty())
{
dir.cdUp();
dir.cd(m_custom_target_folder);
}
}
auto action = Net::ApiDownload::makeFile(m_pack_version.downloadUrl, dir.absoluteFilePath(getFilename()));
if (!m_pack_version.hash_type.isEmpty() && !m_pack_version.hash.isEmpty())
{
switch (Hashing::algorithmFromString(m_pack_version.hash_type))
{
case Hashing::Algorithm::Md4:
action->addValidator(
new Net::ChecksumValidator(QCryptographicHash::Algorithm::Md4, m_pack_version.hash));
break;
case Hashing::Algorithm::Md5:
action->addValidator(
new Net::ChecksumValidator(QCryptographicHash::Algorithm::Md5, m_pack_version.hash));
break;
case Hashing::Algorithm::Sha1:
action->addValidator(
new Net::ChecksumValidator(QCryptographicHash::Algorithm::Sha1, m_pack_version.hash));
break;
case Hashing::Algorithm::Sha256:
action->addValidator(
new Net::ChecksumValidator(QCryptographicHash::Algorithm::Sha256, m_pack_version.hash));
break;
case Hashing::Algorithm::Sha512:
action->addValidator(
new Net::ChecksumValidator(QCryptographicHash::Algorithm::Sha512, m_pack_version.hash));
break;
default: break;
}
}
m_filesNetJob->addNetAction(action);
connect(m_filesNetJob.get(), &NetJob::succeeded, this, &ResourceDownloadTask::downloadSucceeded);
connect(m_filesNetJob.get(), &NetJob::progress, this, &ResourceDownloadTask::downloadProgressChanged);
connect(m_filesNetJob.get(), &NetJob::stepProgress, this, &ResourceDownloadTask::propagateStepProgress);
connect(m_filesNetJob.get(), &NetJob::failed, this, &ResourceDownloadTask::downloadFailed);
addTask(m_filesNetJob);
}
void ResourceDownloadTask::downloadSucceeded()
{
m_filesNetJob.reset();
auto name = std::get<0>(to_delete);
auto filename = std::get<1>(to_delete);
if (!name.isEmpty() && filename != m_pack_version.fileName)
m_pack_model->uninstallResource(filename, true);
}
void ResourceDownloadTask::downloadFailed(QString reason)
{
emitFailed(reason);
m_filesNetJob.reset();
}
void ResourceDownloadTask::downloadProgressChanged(qint64 current, qint64 total)
{
emit progress(current, total);
}
// This indirection is done so that we don't delete a mod before being sure it was
// downloaded successfully!
void ResourceDownloadTask::hasOldResource(QString name, QString filename)
{
to_delete = { name, filename };
}
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