class.ilSoapAuthentication.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
        |                                                                             |
        | 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, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/


include_once 'Auth/Auth.php';
include_once './Services/Authentication/classes/class.ilBaseAuthentication.php';

class ilSoapAuthentication extends ilBaseAuthentication
{
        var $soap_check = true;


        function ilSoapAuthentication()
        {
                // First unset all cookie inforamtions
                unset($_COOKIE['PHPSESSID']);

                parent::ilBaseAuthentication();
                $this->__setMessageCode('Client');
        }

        function disableSoapCheck()
        {
                $this->soap_check = false;
        }

        function authenticate()
        {
                if(!$this->getClient())
                {
                        $this->__setMessage('No client given');
                        return false;
                }
                if(!$this->getUsername())
                {
                        $this->__setMessage('No username given');
                        return false;
                }
                // Read ilias ini
                if(!$this->__buildDSN())
                {
                        $this->__setMessage('Error building dsn/Wrong client Id?');
                        return false;
                }
                if(!$this->__setSessionSaveHandler())
                {
                        return false;
                }
                if(!$this->__checkAgreement('local'))
                {
                        return false;
                }
                if(!$this->__buildAuth())
                {
                        return false;
                }
                if($this->soap_check and !$this->__checkSOAPEnabled())
                {
                        $this->__setMessage('SOAP is not enabled in ILIAS administration for this client');
                        $this->__setMessageCode('Server');

                        return false;
                }


                $this->auth->start();

                if(!$this->auth->getAuth())
                {
                        $this->__getAuthStatus();

                        return false;
                }

                $this->setSid(session_id());

                return true;
        }
        
        protected function __checkAgreement($a_auth_mode)
        {
                global $ilDB;
                
                include_once('./Services/User/classes/class.ilObjUser.php');
                include_once('./Services/Administration/classes/class.ilSetting.php');
                
                $GLOBALS['ilSetting'] = new ilSetting();
                
                if(!$login = ilObjUser::_checkExternalAuthAccount($a_auth_mode,$this->getUsername()))
                {
                        // User does not exist
                        return true;
                }
                
                if(!ilObjUser::_hasAcceptedAgreement($login))
                {
                        $this->__setMessage('User aggrement no accepted.');
                        return false;
                }
                return true;
        }
        


        function validateSession()
        {
                if(!$this->getClient())
                {
                        $this->__setMessage('No client given');
                        return false;
                }
                if(!$this->getSid())
                {
                        $this->__setMessage('No session id given');
                        return false;
                }

                if(!$this->__buildDSN())
                {
                        $this->__setMessage('Error building dsn');
                        return false;
                }
                if(!$this->__checkClientEnabled())
                {
                        $this->__setMessage('Client disabled.');
                        return false;
                }
                
                if(!$this->__setSessionSaveHandler())
                {
                        return false;
                }
                if(!$this->__buildAuth())
                {
                        return false;
                }
                
                if (!$this->__checkGivenSessionId())
                {
                        $this->__setMessage('Unknown session id.');
                        session_regenerate_id();
                        return false;
                }
                
                if($this->soap_check and !$this->__checkSOAPEnabled())
                {
                        $this->__setMessage('SOAP is not enabled in ILIAS administration for this client');
                        $this->__setMessageCode('Server');

                        return false;
                }
                $this->auth->start();
                if(!$this->auth->getAuth())
                {
                        $this->__setMessage('Session not valid');

                        return false;
                }

                return true;
        }
        
        protected function __checkGivenSessionId()
        {
                if ($this->getSid() == "")
                {
                        return true;
                }
                return db_session_exists($this->getSid());
        }
        

        // PRIVATE
        function __checkSOAPEnabled()
        {
                include_once './classes/class.ilDBx.php';


                $db =& new ilDBx($this->dsn);

                $query = "SELECT * FROM settings WHERE keyword = 'soap_user_administration' AND value = 1";

                $res = $db->query($query);

                return $res->numRows() ? true : false;
        }
        
        function __checkClientEnabled()
        {
                if(is_object($this->ini) and $this->ini->readVariable('client','access'))
                {
                        return true;
                }
                return false;
        }
}
?>