/home/edulekha/studygroup.edulekha.com/ow_core/session_authenticator.php
<?php
/**
* EXHIBIT A. Common Public Attribution License Version 1.0
* The contents of this file are subject to the Common Public Attribution License Version 1.0 (the “License”);
* you may not use this file except in compliance with the License. You may obtain a copy of the License at
* http://www.oxwall.org/license. The License is based on the Mozilla Public License Version 1.1
* but Sections 14 and 15 have been added to cover use of software over a computer network and provide for
* limited attribution for the Original Developer. In addition, Exhibit A has been modified to be consistent
* with Exhibit B. Software distributed under the License is distributed on an “AS IS” basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the specific language
* governing rights and limitations under the License. The Original Code is Oxwall software.
* The Initial Developer of the Original Code is Oxwall Foundation (http://www.oxwall.org/foundation).
* All portions of the code written by Oxwall Foundation are Copyright (c) 2011. All Rights Reserved.
* EXHIBIT B. Attribution Information
* Attribution Copyright Notice: Copyright 2011 Oxwall Foundation. All rights reserved.
* Attribution Phrase (not exceeding 10 words): Powered by Oxwall community software
* Attribution URL: http://www.oxwall.org/
* Graphic Image as provided in the Covered Code.
* Display of Attribution Information is required in Larger Works which are defined in the CPAL as a work
* which combines Covered Code or portions thereof with code not governed by the terms of the CPAL.
*/
/**
* The class is a gateway for auth. adapters and provides common API to authenticate users.
*
* @author Sardar Madumarov <madumarov@gmail.com>
* @package ow_core
* @since 1.0
*/
class OW_SessionAuthenticator implements OW_IAuthenticator
{
const USER_ID_SESSION_KEY = 'userId';
public function __construct()
{
}
/**
* Checks if current user is authenticated.
*
* @return boolean
*/
public function isAuthenticated()
{
return ( OW::getSession()->isKeySet(self::USER_ID_SESSION_KEY) && $this->getUserId() > 0 );
}
/**
* Returns current user id.
* If user is not authenticated 0 returned.
*
* @return integer
*/
public function getUserId()
{
return (int) OW::getSession()->get(self::USER_ID_SESSION_KEY);
}
/**
* Logins user by provided user id.
*
* @param integer $userId
*/
public function login( $userId )
{
OW::getSession()->set(self::USER_ID_SESSION_KEY, $userId);
}
/**
* Logs out current user.
*/
public function logout()
{
OW::getSession()->delete(self::USER_ID_SESSION_KEY);
}
/**
* Returns auth id
*
* @return string
*/
public function getId()
{
return session_id();
}
}