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authorMehmet Samet Duman <yongdohyun@projecttick.org>2026-04-02 18:51:45 +0300
committerMehmet Samet Duman <yongdohyun@projecttick.org>2026-04-02 18:51:45 +0300
commitd3261e64152397db2dca4d691a990c6bc2a6f4dd (patch)
treefac2f7be638651181a72453d714f0f96675c2b8b /archived/projt-launcher/launcher/net/MetaCacheSink.cpp
parent31b9a8949ed0a288143e23bf739f2eb64fdc63be (diff)
downloadProject-Tick-d3261e64152397db2dca4d691a990c6bc2a6f4dd.tar.gz
Project-Tick-d3261e64152397db2dca4d691a990c6bc2a6f4dd.zip
NOISSUE add archived projects
Signed-off-by: Mehmet Samet Duman <yongdohyun@projecttick.org>
Diffstat (limited to 'archived/projt-launcher/launcher/net/MetaCacheSink.cpp')
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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 flowln <flowlnlnln@gmail.com>
+ *
+ * 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.
+ *
+ * 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 "MetaCacheSink.h"
+#include <QFile>
+#include <QFileInfo>
+#include <QRegularExpression>
+#include "Application.h"
+
+#include "net/Logging.h"
+
+namespace Net
+{
+
+/** Maximum time to hold a cache entry
+ * = 1 week in seconds
+ */
+#define MAX_TIME_TO_EXPIRE 1 * 7 * 24 * 60 * 60
+
+ MetaCacheSink::MetaCacheSink(MetaEntryPtr entry, ChecksumValidator* md5sum, bool is_eternal)
+ : Net::FileSink(entry->getFullPath()),
+ m_entry(entry),
+ m_md5Node(md5sum),
+ m_is_eternal(is_eternal)
+ {
+ addValidator(md5sum);
+ }
+
+ Task::State MetaCacheSink::initCache(QNetworkRequest& request)
+ {
+ if (!m_entry->isStale())
+ {
+ return Task::State::Succeeded;
+ }
+
+ // 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 Task::State::Running;
+ }
+
+ Task::State MetaCacheSink::finalizeCache(QNetworkReply& reply)
+ {
+ QFileInfo output_file_info(m_filename);
+
+ if (m_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());
+
+ { // Cache lifetime
+ if (m_is_eternal)
+ {
+ qCDebug(taskMetaCacheLogC) << "Adding eternal cache entry:" << m_entry->getFullPath();
+ m_entry->makeEternal(true);
+ }
+ else if (reply.hasRawHeader("Cache-Control"))
+ {
+ auto cache_control_header = reply.rawHeader("Cache-Control");
+ qCDebug(taskMetaCacheLogC) << "Parsing 'Cache-Control' header with" << cache_control_header;
+
+ static const QRegularExpression s_maxAgeExpr("max-age=([0-9]+)");
+ qint64 max_age = s_maxAgeExpr.match(cache_control_header).captured(1).toLongLong();
+ m_entry->setMaximumAge(max_age);
+ }
+ else if (reply.hasRawHeader("Expires"))
+ {
+ auto expires_header = reply.rawHeader("Expires");
+ qCDebug(taskMetaCacheLogC) << "Parsing 'Expires' header with" << expires_header;
+
+ qint64 max_age =
+ QDateTime::fromString(expires_header).toSecsSinceEpoch() - QDateTime::currentSecsSinceEpoch();
+ m_entry->setMaximumAge(max_age);
+ }
+ else
+ {
+ m_entry->setMaximumAge(MAX_TIME_TO_EXPIRE);
+ }
+
+ if (reply.hasRawHeader("Age"))
+ {
+ auto age_header = reply.rawHeader("Age");
+ qCDebug(taskMetaCacheLogC) << "Parsing 'Age' header with" << age_header;
+
+ qint64 current_age = age_header.toLongLong();
+ m_entry->setCurrentAge(current_age);
+ }
+ else
+ {
+ m_entry->setCurrentAge(0);
+ }
+ }
+
+ m_entry->setStale(false);
+ APPLICATION->metacache()->updateEntry(m_entry);
+
+ return Task::State::Succeeded;
+ }
+
+ bool MetaCacheSink::hasLocalData()
+ {
+ QFileInfo info(m_filename);
+ return info.exists() && info.size() != 0;
+ }
+} // namespace Net