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/* 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/>.
*/
#include "MetaCacheSink.h"
#include <QFile>
#include <QFileInfo>
#include "FileSystem.h"
#include "Application.h"
namespace Net
{
MetaCacheSink::MetaCacheSink(MetaEntryPtr entry, ChecksumValidator* md5sum)
: Net::FileSink(entry->getFullPath()), m_entry(entry), m_md5Node(md5sum)
{
addValidator(md5sum);
}
MetaCacheSink::~MetaCacheSink()
{
// nil
}
JobStatus MetaCacheSink::initCache(QNetworkRequest& request)
{
if (!m_entry->isStale()) {
return Job_Finished;
}
// check if file exists, if it does, use its information for the request
QFile current(m_filename);
if (current.exists() && current.size() != 0) {
if (m_entry->getRemoteChangedTimestamp().size()) {
request.setRawHeader(
QString("If-Modified-Since").toLatin1(),
m_entry->getRemoteChangedTimestamp().toLatin1());
}
if (m_entry->getETag().size()) {
request.setRawHeader(QString("If-None-Match").toLatin1(),
m_entry->getETag().toLatin1());
}
}
return Job_InProgress;
}
JobStatus MetaCacheSink::finalizeCache(QNetworkReply& reply)
{
QFileInfo output_file_info(m_filename);
if (wroteAnyData) {
m_entry->setMD5Sum(m_md5Node->hash().toHex().constData());
}
m_entry->setETag(reply.rawHeader("ETag").constData());
if (reply.hasRawHeader("Last-Modified")) {
m_entry->setRemoteChangedTimestamp(
reply.rawHeader("Last-Modified").constData());
}
m_entry->setLocalChangedTimestamp(
output_file_info.lastModified().toUTC().toMSecsSinceEpoch());
m_entry->setStale(false);
APPLICATION->metacache()->updateEntry(m_entry);
return Job_Finished;
}
bool MetaCacheSink::hasLocalData()
{
QFileInfo info(m_filename);
return info.exists() && info.size() != 0;
}
} // namespace Net
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