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<?php
declare(strict_types=1);
/**
* @copyright 2021 Christoph Wurst <christoph@winzerhof-wurst.at>
*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\DAV\CalDAV;
use OCA\DAV\AppInfo\Application;
use OCP\AppFramework\Utility\ITimeFactory;
use OCP\IConfig;
use function max;
class RetentionService {
public const RETENTION_CONFIG_KEY = 'calendarRetentionObligation';
private const DEFAULT_RETENTION_SECONDS = 30 * 24 * 60 * 60;
/** @var IConfig */
private $config;
/** @var ITimeFactory */
private $time;
/** @var CalDavBackend */
private $calDavBackend;
public function __construct(IConfig $config,
ITimeFactory $time,
CalDavBackend $calDavBackend) {
$this->config = $config;
$this->time = $time;
$this->calDavBackend = $calDavBackend;
}
public function getDuration(): int {
return max(
(int) $this->config->getAppValue(
Application::APP_ID,
self::RETENTION_CONFIG_KEY,
(string) self::DEFAULT_RETENTION_SECONDS
),
0 // Just making sure we don't delete things in the future when a negative number is passed
);
}
public function cleanUp(): void {
$retentionTime = $this->getDuration();
$now = $this->time->getTime();
$calendars = $this->calDavBackend->getDeletedCalendars($now - $retentionTime);
foreach ($calendars as $calendar) {
$this->calDavBackend->deleteCalendar($calendar['id'], true);
}
$objects = $this->calDavBackend->getDeletedCalendarObjects($now - $retentionTime);
foreach ($objects as $object) {
$this->calDavBackend->deleteCalendarObject(
$object['calendarid'],
$object['uri'],
$object['calendartype'],
true
);
}
}
}
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