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<?php
declare(strict_types=1);
/**
* @copyright 2019 Christoph Wurst <christoph@winzerhof-wurst.at>
*
* @author 2019 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 OC\Authentication\Token;
use BadMethodCallException;
use OC\Authentication\Events\RemoteWipeFinished;
use OC\Authentication\Events\RemoteWipeStarted;
use OC\Authentication\Exceptions\InvalidTokenException;
use OC\Authentication\Exceptions\WipeTokenException;
use OCP\Activity\IEvent;
use OCP\Activity\IManager as IActivityManager;
use OCP\AppFramework\Utility\ITimeFactory;
use OCP\EventDispatcher\IEventDispatcher;
use OCP\ILogger;
use OCP\IUser;
use OCP\Notification\IManager as INotificationManager;
use Symfony\Component\EventDispatcher\EventDispatcher;
class RemoteWipe {
/** @var IProvider */
private $tokenProvider;
/** @var IEventDispatcher */
private $eventDispatcher;
/** @var ILogger */
private $logger;
public function __construct(IProvider $tokenProvider,
IEventDispatcher $eventDispatcher,
ILogger $logger) {
$this->tokenProvider = $tokenProvider;
$this->eventDispatcher = $eventDispatcher;
$this->logger = $logger;
}
public function markTokenForWipe(int $id): bool {
$token = $this->tokenProvider->getTokenById($id);
if (!($token instanceof IWipeableToken)) {
return false;
}
$token->wipe();
$this->tokenProvider->updateToken($token);
return true;
}
/**
* @param string $token
*
* @return bool whether wiping was started
* @throws InvalidTokenException
*
*/
public function start(string $token): bool {
try {
$this->tokenProvider->getToken($token);
// We expect a WipedTokenException here. If we reach this point this
// is an ordinary token
return false;
} catch (WipeTokenException $e) {
// Expected -> continue below
}
$dbToken = $e->getToken();
$this->logger->info("user " . $dbToken->getUID() . " started a remote wipe");
$this->eventDispatcher->dispatch(RemoteWipeStarted::class, new RemoteWipeStarted($dbToken));
return true;
}
/**
* @param string $token
*
* @return bool whether wiping could be finished
* @throws InvalidTokenException
*/
public function finish(string $token): bool {
try {
$this->tokenProvider->getToken($token);
// We expect a WipedTokenException here. If we reach this point this
// is an ordinary token
return false;
} catch (WipeTokenException $e) {
// Expected -> continue below
}
$dbToken = $e->getToken();
$this->tokenProvider->invalidateToken($token);
$this->logger->info("user " . $dbToken->getUID() . " finished a remote wipe");
$this->eventDispatcher->dispatch(RemoteWipeFinished::class, new RemoteWipeFinished($dbToken));
return true;
}
}
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