159 lines
3.9 KiB
PHP
159 lines
3.9 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright 2019 Christoph Wurst <christoph@winzerhof-wurst.at>
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*
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* @author 2019 Christoph Wurst <christoph@winzerhof-wurst.at>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace OC\Authentication\Token;
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use function array_filter;
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use OC\Authentication\Events\RemoteWipeFinished;
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use OC\Authentication\Events\RemoteWipeStarted;
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use OC\Authentication\Exceptions\ExpiredTokenException;
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use OC\Authentication\Exceptions\InvalidTokenException;
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use OC\Authentication\Exceptions\WipeTokenException;
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use OCP\EventDispatcher\IEventDispatcher;
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use OCP\ILogger;
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use OCP\IUser;
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class RemoteWipe {
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/** @var IProvider */
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private $tokenProvider;
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/** @var IEventDispatcher */
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private $eventDispatcher;
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/** @var ILogger */
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private $logger;
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public function __construct(IProvider $tokenProvider,
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IEventDispatcher $eventDispatcher,
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ILogger $logger) {
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$this->tokenProvider = $tokenProvider;
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$this->eventDispatcher = $eventDispatcher;
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$this->logger = $logger;
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}
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/**
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* @param int $id
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*
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* @return bool
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*
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* @throws InvalidTokenException
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* @throws WipeTokenException
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* @throws ExpiredTokenException
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*/
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public function markTokenForWipe(int $id): bool {
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$token = $this->tokenProvider->getTokenById($id);
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if (!($token instanceof IWipeableToken)) {
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return false;
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}
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$token->wipe();
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$this->tokenProvider->updateToken($token);
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return true;
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}
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/**
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* @param IUser $user
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*
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* @return bool true if any tokens have been marked for remote wipe
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*/
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public function markAllTokensForWipe(IUser $user): bool {
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$tokens = $this->tokenProvider->getTokenByUser($user->getUID());
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/** @var IWipeableToken[] $wipeable */
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$wipeable = array_filter($tokens, function (IToken $token) {
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return $token instanceof IWipeableToken;
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});
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if (empty($wipeable)) {
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return false;
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}
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foreach ($wipeable as $token) {
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$token->wipe();
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$this->tokenProvider->updateToken($token);
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}
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return true;
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}
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/**
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* @param string $token
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*
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* @return bool whether wiping was started
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* @throws InvalidTokenException
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*
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*/
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public function start(string $token): bool {
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try {
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$this->tokenProvider->getToken($token);
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// We expect a WipedTokenException here. If we reach this point this
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// is an ordinary token
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return false;
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} catch (WipeTokenException $e) {
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// Expected -> continue below
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}
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$dbToken = $e->getToken();
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$this->logger->info("user " . $dbToken->getUID() . " started a remote wipe");
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$this->eventDispatcher->dispatch(RemoteWipeStarted::class, new RemoteWipeStarted($dbToken));
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return true;
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}
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/**
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* @param string $token
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*
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* @return bool whether wiping could be finished
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* @throws InvalidTokenException
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*/
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public function finish(string $token): bool {
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try {
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$this->tokenProvider->getToken($token);
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// We expect a WipedTokenException here. If we reach this point this
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// is an ordinary token
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return false;
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} catch (WipeTokenException $e) {
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// Expected -> continue below
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}
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$dbToken = $e->getToken();
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$this->tokenProvider->invalidateToken($token);
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$this->logger->info("user " . $dbToken->getUID() . " finished a remote wipe");
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$this->eventDispatcher->dispatch(RemoteWipeFinished::class, new RemoteWipeFinished($dbToken));
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return true;
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}
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}
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