Current Path : C:/Users/Mahmood/Desktop/moodle8/auth/shibboleth/ |
Current File : C:/Users/Mahmood/Desktop/moodle8/auth/shibboleth/logout.php |
<?php // Implements logout for Shibboleth authenticated users according to: // - https://wiki.shibboleth.net/confluence/display/SHIB2/NativeSPLogoutInitiator // - https://wiki.shibboleth.net/confluence/display/SHIB2/NativeSPNotify require_once("../../config.php"); require_once($CFG->dirroot."/auth/shibboleth/auth.php"); $action = optional_param('action', '', PARAM_ALPHA); $redirect = optional_param('return', '', PARAM_URL); // Find out whether host supports https $protocol = 'http://'; if (is_https()) { $protocol = 'https://'; } // If the shibboleth plugin is not enable, throw an exception. if (!is_enabled_auth('shibboleth')) { throw new moodle_exception(get_string('pluginnotenabled', 'auth', 'shibboleth')); } // Front channel logout. $inputstream = file_get_contents("php://input"); if ($action == 'logout' && !empty($redirect)) { if (isloggedin($USER) && $USER->auth == 'shibboleth') { // Logout user from application. require_logout(); } // Finally, send user to the return URL. redirect($redirect); } else if (!empty($inputstream)) { // Back channel logout. // Set SOAP header. $server = new SoapServer($protocol.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'].'/LogoutNotification.wsdl'); $server->addFunction("LogoutNotification"); $server->handle(); } else { // Return WSDL. header('Content-Type: text/xml'); echo <<<WSDL <?xml version ="1.0" encoding ="UTF-8" ?> <definitions name="LogoutNotification" targetNamespace="urn:mace:shibboleth:2.0:sp:notify" xmlns:notify="urn:mace:shibboleth:2.0:sp:notify" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns="http://schemas.xmlsoap.org/wsdl/"> <!-- This page either has to be called with the GET arguments 'action' and 'return' via a redirect from the Shibboleth Service Provider logout handler (front-channel logout) or via a SOAP request by a Shibboleth Service Provider (back-channel logout). Because neither of these two variants seems to be the case, the WSDL file for the web service is returned. For more information see: - https://wiki.shibboleth.net/confluence/display/SHIB2/NativeSPLogoutInitiator - https://wiki.shibboleth.net/confluence/display/SHIB2/NativeSPNotify --> <types> <schema targetNamespace="urn:mace:shibboleth:2.0:sp:notify" xmlns="http://www.w3.org/2000/10/XMLSchema" xmlns:notify="urn:mace:shibboleth:2.0:sp:notify"> <simpleType name="string"> <restriction base="string"> <minLength value="1"/> </restriction> </simpleType> <element name="OK" type="notify:OKType"/> <complexType name="OKType"> <sequence/> </complexType> </schema> </types> <message name="getLogoutNotificationRequest"> <part name="SessionID" type="notify:string" /> </message> <message name="getLogoutNotificationResponse" > <part name="OK"/> </message> <portType name="LogoutNotificationPortType"> <operation name="LogoutNotification"> <input message="getLogoutNotificationRequest"/> <output message="getLogoutNotificationResponse"/> </operation> </portType> <binding name="LogoutNotificationBinding" type="notify:LogoutNotificationPortType"> <soap:binding style="rpc" transport="http://schemas.xmlsoap.org/soap/http"/> <operation name="LogoutNotification"> <soap:operation soapAction="urn:xmethods-logout-notification#LogoutNotification"/> </operation> </binding> <service name="LogoutNotificationService"> <port name="LogoutNotificationPort" binding="notify:LogoutNotificationBinding"> <soap:address location="{$protocol}{$_SERVER['HTTP_HOST']}{$_SERVER['PHP_SELF']}"/> </port> </service> </definitions> WSDL; exit; } /******************************************************************************/ /** * Handles SOAP Back-channel logout notification * * @param string $spsessionid SP-provided Shibboleth Session ID * @return SoapFault or void if everything was fine */ function LogoutNotification($spsessionid) { $sessionclass = \core\session\manager::get_handler_class(); switch ($sessionclass) { case '\core\session\file': return \auth_shibboleth\helper::logout_file_session($spsessionid); case '\core\session\database': return \auth_shibboleth\helper::logout_db_session($spsessionid); default: throw new moodle_exception("Shibboleth logout not implemented for '$sessionclass'"); } // If no SoapFault was thrown, the function will return OK as the SP assumes. }