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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; under version 2 |
| 7 | * of the License (non-upgradable). |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 17 | * |
| 18 | * Copyright (c) 2017 (original work) Open Assessment Technologies SA; |
| 19 | * |
| 20 | */ |
| 21 | |
| 22 | namespace oat\tao\helpers\form\validators; |
| 23 | |
| 24 | use oat\tao\model\security\xsrf\TokenService; |
| 25 | use oat\oatbox\service\ServiceManager; |
| 26 | |
| 27 | /** |
| 28 | * Validate a token |
| 29 | * |
| 30 | * @author Bertrand Chevrier <bertrand@taotesting.com> |
| 31 | */ |
| 32 | class XsrfTokenValidator extends \tao_helpers_form_Validator |
| 33 | { |
| 34 | /** |
| 35 | * Validate an active XSRF token. |
| 36 | * |
| 37 | * @param string $values should be the token |
| 38 | * @return boolean true only if valid |
| 39 | * @throws \common_exception_Unauthorized if the token is not valid |
| 40 | */ |
| 41 | public function evaluate($values) |
| 42 | { |
| 43 | $tokenService = $this->getServiceManager()->get(TokenService::SERVICE_ID); |
| 44 | |
| 45 | if ($tokenService->checkToken($values)) { |
| 46 | $tokenService->revokeToken($values); |
| 47 | return true; |
| 48 | } |
| 49 | |
| 50 | \common_Logger::e('Attempt to post a form with the incorrect token'); |
| 51 | throw new \common_exception_Unauthorized('Invalid token ' . $values); |
| 52 | } |
| 53 | |
| 54 | protected function getServiceManager() |
| 55 | { |
| 56 | return ServiceManager::getServiceManager(); |
| 57 | } |
| 58 | } |