server/core/Controller/CSRFTokenController.php
Roeland Jago Douma da81b71f93
Only allow requesting new CSRF tokens if it passes the SameSite Cookie test
Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>
2020-01-03 13:12:03 +01:00

69 lines
1.8 KiB
PHP

<?php
declare(strict_types=1);
/**
* @copyright 2017 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 OC\Core\Controller;
use OC\Security\CSRF\CsrfTokenManager;
use OCP\AppFramework\Controller;
use OCP\AppFramework\Http;
use OCP\AppFramework\Http\JSONResponse;
use OCP\IRequest;
class CSRFTokenController extends Controller {
/** @var CsrfTokenManager */
private $tokenManager;
/**
* @param string $appName
* @param IRequest $request
* @param CsrfTokenManager $tokenManager
*/
public function __construct(string $appName, IRequest $request,
CsrfTokenManager $tokenManager) {
parent::__construct($appName, $request);
$this->tokenManager = $tokenManager;
}
/**
* @NoAdminRequired
* @NoCSRFRequired
* @PublicPage
* @return JSONResponse
*/
public function index(): JSONResponse {
if (!$this->request->passesStrictCookieCheck()) {
return new JSONResponse([], Http::STATUS_FORBIDDEN);
}
$requestToken = $this->tokenManager->getToken();
return new JSONResponse([
'token' => $requestToken->getEncryptedValue(),
]);
}
}