1 files changed, 80 insertions, 0 deletions
diff --git a/lib/private/Security/CSRF/TokenStorage/SessionStorage.php b/lib/private/Security/CSRF/TokenStorage/SessionStorage.php
new file mode 100644
index 00000000000..e1c8c96e920
--- /dev/null
+++ b/lib/private/Security/CSRF/TokenStorage/SessionStorage.php
@@ -0,0 +1,80 @@
+<?php
+/**
+ * @author Lukas Reschke <lukas@owncloud.com>
+ *
+ * @copyright Copyright (c) 2016, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace OC\Security\CSRF\TokenStorage;
+
+use OCP\ISession;
+
+/**
+ * Class SessionStorage provides the session storage
+ *
+ * @package OC\Security\CSRF\TokenStorage
+ */
+class SessionStorage {
+	/** @var ISession */
+	private $session;
+
+	/**
+	 * @param ISession $session
+	 */
+	public function __construct(ISession $session) {
+		$this->session = $session;
+	}
+
+	/**
+	 * Returns the current token or throws an exception if none is found.
+	 *
+	 * @return string
+	 * @throws \Exception
+	 */
+	public function getToken() {
+		$token = $this->session->get('requesttoken');
+		if(empty($token)) {
+			throw new \Exception('Session does not contain a requesttoken');
+		}
+
+		return $token;
+	}
+
+	/**
+	 * Set the valid current token to $value.
+	 *
+	 * @param string $value
+	 */
+	public function setToken($value) {
+		$this->session->set('requesttoken', $value);
+	}
+
+	/**
+	 * Removes the current token.
+	 */
+	public function removeToken() {
+		$this->session->remove('requesttoken');
+	}
+	/**
+	 * Whether the storage has a storage.
+	 *
+	 * @return bool
+	 */
+	public function hasToken() {
+		return $this->session->exists('requesttoken');
+	}
+}