1 files changed, 125 insertions, 0 deletions
diff --git a/lib/private/Security/CredentialsManager.php b/lib/private/Security/CredentialsManager.php
new file mode 100644
index 00000000000..d4104dbe712
--- /dev/null
+++ b/lib/private/Security/CredentialsManager.php
@@ -0,0 +1,125 @@
+<?php
+/**
+ * @author Robin McCorkell <robin@mccorkell.me.uk>
+ *
+ * @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;
+
+use OCP\Security\ICrypto;
+use OCP\IDBConnection;
+use OCP\Security\ICredentialsManager;
+use OCP\IConfig;
+
+/**
+ * Store and retrieve credentials for external services
+ *
+ * @package OC\Security
+ */
+class CredentialsManager implements ICredentialsManager {
+
+	const DB_TABLE = 'credentials';
+
+	/** @var ICrypto */
+	protected $crypto;
+
+	/** @var IDBConnection */
+	protected $dbConnection;
+
+	/**
+	 * @param ICrypto $crypto
+	 * @param IDBConnection $dbConnection
+	 */
+	public function __construct(ICrypto $crypto, IDBConnection $dbConnection) {
+		$this->crypto = $crypto;
+		$this->dbConnection = $dbConnection;
+	}
+
+	/**
+	 * Store a set of credentials
+	 *
+	 * @param string|null $userId Null for system-wide credentials
+	 * @param string $identifier
+	 * @param mixed $credentials
+	 */
+	public function store($userId, $identifier, $credentials) {
+		$value = $this->crypto->encrypt(json_encode($credentials));
+
+		$this->dbConnection->setValues(self::DB_TABLE, [
+			'user' => $userId,
+			'identifier' => $identifier,
+		], [
+			'credentials' => $value,
+		]);
+	}
+
+	/**
+	 * Retrieve a set of credentials
+	 *
+	 * @param string|null $userId Null for system-wide credentials
+	 * @param string $identifier
+	 * @return mixed
+	 */
+	public function retrieve($userId, $identifier) {
+		$qb = $this->dbConnection->getQueryBuilder();
+		$qb->select('credentials')
+			->from(self::DB_TABLE)
+			->where($qb->expr()->eq('user', $qb->createNamedParameter($userId)))
+			->andWhere($qb->expr()->eq('identifier', $qb->createNamedParameter($identifier)))
+		;
+		$result = $qb->execute()->fetch();
+
+		if (!$result) {
+			return null;
+		}
+		$value = $result['credentials'];
+
+		return json_decode($this->crypto->decrypt($value), true);
+	}
+
+	/**
+	 * Delete a set of credentials
+	 *
+	 * @param string|null $userId Null for system-wide credentials
+	 * @param string $identifier
+	 * @return int rows removed
+	 */
+	public function delete($userId, $identifier) {
+		$qb = $this->dbConnection->getQueryBuilder();
+		$qb->delete(self::DB_TABLE)
+			->where($qb->expr()->eq('user', $qb->createNamedParameter($userId)))
+			->andWhere($qb->expr()->eq('identifier', $qb->createNamedParameter($identifier)))
+		;
+		return $qb->execute();
+	}
+
+	/**
+	 * Erase all credentials stored for a user
+	 *
+	 * @param string $userId
+	 * @return int rows removed
+	 */
+	public function erase($userId) {
+		$qb = $this->dbConnection->getQueryBuilder();
+		$qb->delete(self::DB_TABLE)
+			->where($qb->expr()->eq('user', $qb->createNamedParameter($userId)))
+		;
+		return $qb->execute();
+	}
+
+}