root/trunk/wifidog-auth/wifidog/classes/Authenticator.php @ 708

<?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; either version 2 of   *
 * the License, or (at your option) any later version.              *
 *                                                                  *
 * 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, contact:                        *
 *                                                                  *
 * Free Software Foundation           Voice:  +1-617-542-5942       *
 * 59 Temple Place - Suite 330        Fax:    +1-617-542-2652       *
 * Boston, MA  02111-1307,  USA       gnu@gnu.org                   *
 *                                                                  *
 \********************************************************************/
/**@file Authenticator.php
 * @author Copyright (C) 2005 Benoit Grégoire <bock@step.polymtl.ca>,
 * Technologies Coeus inc.
 */
require_once 'AuthenticatorLocalUser.php';
require_once 'AuthenticatorRadius.php';

/** Abstract class to represent an authentication source */
abstract class Authenticator
{
        private $mAccountOrigin;

        function __construct($account_orgin)
        {
                $this->mAccountOrigin = $account_orgin;
        }
        
        public function getAccountOrigin()
        {
                return $this->mAccountOrigin; 
        }

        /** Attempts to login a user against the authentication source.  If successfull, returns a User object */
        function login()
        {
        }

        /** Logs out the user */
        function logout()
        {
        }

        /** Start accounting traffic for the user */
        function acctStart($info)
        {
                global $db;
                $auth_response = $info['account_status'];
                /* Login the user */
                $mac = $db->EscapeString($_REQUEST['mac']);
                $ip = $db->EscapeString($_REQUEST['ip']);
                $sql = "UPDATE connections SET "."token_status='".TOKEN_INUSE."',"."user_mac='$mac',"."user_ip='$ip',"."last_updated=NOW()"."WHERE conn_id='{$info['conn_id']}';\n";
                $db->ExecSqlUpdate($sql, false);

                /* Logging in with a new token implies that all other active tokens should expire */
                $token = $db->EscapeString($_REQUEST['token']);
                $sql = "UPDATE connections SET "."timestamp_out=NOW(), token_status='".TOKEN_USED."' "."WHERE user_id = '{$info['user_id']}' AND token_status='".TOKEN_INUSE."' AND token!='$token';\n";
                $db->ExecSqlUpdate($sql, false);
                /* Delete all unused tokens for this user, so we don't fill the database with them */
                $sql = "DELETE FROM connections "."WHERE token_status='".TOKEN_UNUSED."' AND user_id = '{$info['user_id']}';\n";
                $db->ExecSqlUpdate($sql, false);
        }

        /** Update traffic counters */
        function acctUpdate($info, $incoming, $outgoing)
        {
                // Write traffic counters to database
                global $db;
                $db->ExecSqlUpdate("UPDATE connections SET "."incoming='$incoming',"."outgoing='$outgoing',"."last_updated=NOW() "."WHERE conn_id='{$info['conn_id']}'");
        }

        /** Final update and stop accounting */
        function acctStop($info)
        {
                // Stop traffic counters update
                global $db;
                $db->ExecSqlUpdate("UPDATE connections SET "."timestamp_out=NOW(),"."token_status='".TOKEN_USED."' "."WHERE conn_id='{$info['conn_id']}';\n", false);
        }
        
        /**
         * Property method that tells if the class allows registration
         */
        function isRegistrationPermitted()
        {
                return false;
        }

} // End class
?>