phpbb/phpBB/includes/auth/provider/base.php

<?php
/**
*
* @package auth
* @copyright (c) 2013 phpBB Group
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
*
*/

/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
	exit;
}

/**
 * Base authentication provider class that all other providers must implement.
 *
 * @package auth
 */
abstract class phpbb_auth_provider_base implements phpbb_auth_provider_interface
{
	/**
	 * {@inheritdoc}
	 */
	public function init()
	{
		return;
	}

	/**
	 * {@inheritdoc}
	 */
	abstract public function login($username, $password);

	/**
	 * {@inheritdoc}
	 */
	public function autologin()
	{
		return;
	}

	/**
	 * {@inheritdoc}
	 */
	public function acp($new)
	{
		return;
	}

	/**
	 * {@inheritdoc}
	 */
	public function logout($data, $new_session)
	{
		return;
	}

	/**
	 * {@inheritdoc}
	 */
	public function validate_session($user)
	{
		return;
	}
}