<?php
if(!defined('sugarEntry') || !sugarEntry) die('Not A Valid Entry Point');
/**
 * SugarCRM is a customer relationship management program developed by
 * SugarCRM, Inc. Copyright (C) 2004 - 2007 SugarCRM Inc.
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License version 3 as published by the
 * Free Software Foundation with the addition of the following permission added
 * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
 * IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
 * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 * 
 * 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, see http://www.gnu.org/licenses or write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 * 
 * You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
 * SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
 * 
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU General Public License version 3.
 * 
 * In accordance with Section 7(b) of the GNU General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "Powered by
 * SugarCRM" logo. If the display of the logo is not reasonably feasible for
 * technical reasons, the Appropriate Legal Notices must display the words
 * "Powered by SugarCRM".
 */



/**
 * This file is where the user authentication occurs. No redirection should happen in this file.
 *
 */
class SugarAuthenticateUser{
	
	/**
	 * Does the actual authentication of the user and returns an id that will be used 
	 * to load the current user (loadUserOnSession)
	 *
	 * @param STRING $name
	 * @param STRING $password
	 * @return STRING id - used for loading the user
	 */
	function authenticateUser($name, $password) {
		
		$query = "SELECT * from users where user_name='$name' AND user_hash='$password' AND (portal_only IS NULL OR portal_only !='1') AND (is_group IS NULL OR is_group !='1') AND status !='Inactive'";
		$result =$GLOBALS['db']->limitQuery($query,0,1,false);
		$row = $GLOBALS['db']->fetchByAssoc($result);
		// set the ID in the seed user.  This can be used for retrieving the full user record later
		if (empty ($row)) {
			return '';
		} else {
			return $row['id'];
		}
	}
	/**
	 * Checks if a user is a sugarLogin user 
	 * which implies they should use the sugar authentication to login
	 *
	 * @param STRING $name
	 * @param STRIUNG $password
	 * @return boolean
	 */
	function isSugarLogin($name, $password){
		$password = SugarAuthenticate::encodePassword($password);
		$query = "SELECT * from users where user_name='$name' AND user_hash='$password' AND (portal_only IS NULL OR portal_only !='1') AND (is_group IS NULL OR is_group !='1') AND status !='Inactive' AND sugar_login=1";
		$result =$GLOBALS['db']->limitQuery($query,0,1,false);
		$row = $GLOBALS['db']->fetchByAssoc($result);
		if($row)return true;
		return false;
	}
	
	/**
	 * this is called when a user logs in 
	 *
	 * @param STRING $name
	 * @param STRING $password
	 * @return boolean
	 */
	function loadUserOnLogin($name, $password) {
		global $login_error;

		$GLOBALS['log']->debug("Starting user load for ". $name);
		if(empty($name) || empty($password)) return false;
		$user_hash = SugarAuthenticate::encodePassword($password);
		$user_id = $this->authenticateUser($name, $user_hash);
		if(empty($user_id)) {
			$GLOBALS['log']->fatal('SECURITY: User authentication for '.$name.' failed');
			return false;
		}
		$this->loadUserOnSession($user_id);
		return true;
	}
	/**
	 * Loads the current user bassed on the given user_id 
	 *
	 * @param STRING $user_id
	 * @return boolean
	 */
	function loadUserOnSession($user_id=''){
		if(!empty($user_id)){
			$_SESSION['authenticated_user_id'] = $user_id;
		}
		
		if(!empty($_SESSION['authenticated_user_id']) || !empty($user_id)){
			$GLOBALS['current_user'] = new User();
			if($GLOBALS['current_user']->retrieve($_SESSION['authenticated_user_id'])){
				
				return true;
			}
		}
		return false;
		
	}

}

?>
