class.ilAuthContainerOpenId.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once 'Auth/Container.php';

class ilAuthContainerOpenId extends Auth_Container
{
        private $settings = null;
        
        private $response_data = array();
        private $force_creation = false;
        
        public function __construct()
        {
                parent::__construct();
                
                $this->initSettings();
        }
        
        public function fetchData($a_username,$a_password,$isChallengeResponse = false)
        {
                global $ilLog;
                
                $ilLog->write(__METHOD__.': Fetch Data called');
                
                $response = $this->settings->getConsumer()->complete($this->settings->getReturnLocation());
                
                switch($response->status)
                {
                        case Auth_OpenID_CANCEL:
                                die("Auth cancelled");
                        
                        case Auth_OpenID_FAILURE:
                                die("Auth failed with message: ".$response->message);
                                
                        case Auth_OpenID_SUCCESS:
                                $openid = $response->getDisplayIdentifier();
                        $esc_identity = htmlentities($openid);
                                $ilLog->write(__METHOD__.': Auth success with identity '.$esc_identity);
                                
                        if($response->endpoint->canonicalID) 
                                {
                        $escaped_canonicalID = htmlentities($response->endpoint->canonicalID);
                                        $ilLog->write(__METHOD__.': Auth success with canonical id: '.$esc_identity);

                        }
                                include_once 'Auth/OpenID/SReg.php';

                                // Check if simple registration is supported
                                if(Auth_OpenID_supportsSReg($response->endpoint))
                                {
                                        $sreg_resp = Auth_OpenID_SRegResponse::fromSuccessResponse($response,true);
                                $this->response_data = $sreg_resp->contents();


                                        $ilLog->write(__METHOD__.' auth data: '.print_r($this->response_data,true));
                                        return true;
                                }
                                else
                                {
                                        // Try to fetch response values
                                        foreach($response->message->args->keys as $key => $mapping)
                                        {
                                                if($mapping[1] == 'sreg.nickname')
                                                {
                                                        $this->response_data['nickname'] = $response->message->args->values[$key];                                                      
                                                }
                                                if($mapping[1] == 'sreg.email')
                                                {
                                                        $this->response_data['email'] = $response->message->args->values[$key];                                                 
                                                }
                                        }
                                }
                                return true;

                }
                return false;
        }
        
        public function forceCreation($a_status)
        {
                $this->force_creation = true;
        }
        
        
        public function loginObserver($a_username,$a_auth)
        {
                global $ilLog;
                
                $this->initSettings();
                $this->response_data['ilInternalAccount'] = ilObjUser::_checkExternalAuthAccount(
                        "openid",
                        $this->response_data['nickname']
                );
                if(!$this->response_data['ilInternalAccount'])
                {
                        if($this->settings->isCreationEnabled())
                        {
                                if($this->settings->isAccountMigrationEnabled() and !$this->force_creation and !$_SESSION['force_creation'])
                                {
                                        $a_auth->logout();
                                        $_SESSION['tmp_auth_mode'] = 'openid';
                                        $_SESSION['tmp_oid_username'] = urldecode($_GET['openid_identity']);
                                        $_SESSION['tmp_external_account'] = $this->response_data['nickname'];
                                        $_SESSION['tmp_pass'] = $_POST['password'];
                                        $_SESSION['tmp_roles'] = array(0 => $this->settings->getDefaultRole());
                                
                                        ilUtil::redirect('ilias.php?baseClass=ilStartUpGUI&cmd=showAccountMigration&cmdClass=ilstartupgui');
                                }
                                
                                include_once './Services/OpenId/classes/class.ilOpenIdAttributeToUser.php';
                                $new_user = new ilOpenIdAttributeToUser();
                                $new_name = $new_user->create($this->response_data['nickname'],$this->response_data);

                                $a_auth->setAuth($new_name);
                                return true;
                        }
                        else
                        {
                                // No syncronisation allowed => create Error
                                $a_auth->status = AUTH_OPENID_NO_ILIAS_USER;
                                $a_auth->logout();
                                return false;
                        }
                        
                }
                else
                {
                        $a_auth->setAuth($this->response_data['ilInternalAccount']);
                        return true;
                }
                return false;
        }
        
        protected function initSettings()
        {
                include_once './Services/OpenId/classes/class.ilOpenIdSettings.php';
                $this->settings = ilOpenIdSettings::getInstance();
                $this->settings->initConsumer();
        }
}
?>