<?php
/**
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; under version 2
 * of the License (non-upgradable).
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright (c) 2013 (original work) Open Assessment Technologies SA (under the project TAO-PRODUCT);
 *
 *
 */

/**
 * Authentication adapter interface to be implemented by authentication methodes
 *
 * @access public
 * @author Joel Bout, <joel@taotesting.com>
 * @package generis

 */
interface common_user_auth_Adapter
{

    /**
     * Performs an authentication attempt
     *
     * @access public
     * @author Joel Bout, <joel@taotesting.com>
     * @return common_user_User
     * @throws common_user_auth_AuthFailedException
     */
    public function authenticate();
}