Added SLO with nameID and SessionIndex in demo1

Author: pitbulk

demo1/index.php

@@ -18,7 +18,18 @@
     $returnTo = $spBaseUrl.'/demo1/attrs.php';
     $auth->login($returnTo);
 } else if (isset($_GET['slo'])) {
-    $auth->logout();
+    $returnTo = null;
+    $paramters = array();
+    $nameId = null;
+    $sessionIndex = null;
+    if (isset($_SESSION['samlNameId'])) {
+        $nameId = $_SESSION['samlNameId'];
+    }
+    if (isset($_SESSION['samlSessionIndex'])) {
+        $sessionIndex = $_SESSION['samlSessionIndex'];
+    }
+
+    $auth->logout($returnTo, $paramters, $nameId, $sessionIndex);
 } else if (isset($_GET['acs'])) {
     $auth->processResponse();
 
@@ -34,6 +45,8 @@
     }
 
     $_SESSION['samlUserdata'] = $auth->getAttributes();
+    $_SESSION['samlNameId'] = $auth->getNameId();
+    $_SESSION['samlSessionIndex'] = $auth->getSessionIndex();        
     if (isset($_POST['RelayState']) && OneLogin_Saml2_Utils::getSelfURL() != $_POST['RelayState']) {
         $auth->redirectTo($_POST['RelayState']);
     }