Add CSRF token controller to retrieve the current CSRF token

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

1 files changed, 63 insertions, 0 deletions

diff --git a/core/Controller/CSRFTokenController.php b/core/Controller/CSRFTokenController.php
new file mode 100644
index 00000000000..24888e2179f
--- /dev/null
+++ b/core/Controller/CSRFTokenController.php
@@ -0,0 +1,63 @@
+<?php
+declare(strict_types=1);
+
+/**
+ * @copyright 2017 Christoph Wurst <christoph@winzerhof-wurst.at>
+ *
+ * @author 2017 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\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 {
+		$requestToken = $this->tokenManager->getToken();
+
+		return new JSONResponse([
+			'token' => $requestToken->getEncryptedValue(),
+		]);
+	}
+
+}