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<?php
declare(strict_types=1);
/**
* @copyright 2020 Christoph Wurst <christoph@winzerhof-wurst.at>
*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Joas Schilling <coding@schilljs.com>
*
* @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 OC\Authentication\Listeners;
use OC\Authentication\Token\Manager;
use OCP\EventDispatcher\Event;
use OCP\EventDispatcher\IEventListener;
use OCP\User\Events\UserDeletedEvent;
use Psr\Log\LoggerInterface;
use Throwable;
/**
* @template-implements IEventListener<\OCP\User\Events\UserDeletedEvent>
*/
class UserDeletedTokenCleanupListener implements IEventListener {
/** @var Manager */
private $manager;
/** @var LoggerInterface */
private $logger;
public function __construct(Manager $manager,
LoggerInterface $logger) {
$this->manager = $manager;
$this->logger = $logger;
}
public function handle(Event $event): void {
if (!($event instanceof UserDeletedEvent)) {
// Unrelated
return;
}
/**
* Catch any exception during this process as any failure here shouldn't block the
* user deletion.
*/
try {
$uid = $event->getUser()->getUID();
$tokens = $this->manager->getTokenByUser($uid);
foreach ($tokens as $token) {
$this->manager->invalidateTokenById($uid, $token->getId());
}
} catch (Throwable $e) {
$this->logger->error('Could not clean up auth tokens after user deletion: ' . $e->getMessage(), [
'exception' => $e,
]);
}
}
}
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