Redirect the user if refreshing the login page and the session is lost...

Redirect the user if refreshing the login page and the session is lost (without entering credentials). Will improve user experience

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@1246 44740490-163a-0410-bde0-09ae8108e29a

modules/core/www/loginuserpass.php

@@ -15,6 +15,15 @@ if (!array_key_exists('AuthState', $_REQUEST)) {
 }
 $authStateId = $_REQUEST['AuthState'];
 
+try {
+	/* Retrieve the authentication state. */
+	$state = SimpleSAML_Auth_State::loadState($authStateId, sspmod_core_Auth_UserPassBase::STAGEID);
+} catch(Exception $e) {
+	if (array_key_exists('SessionLostURL', $_REQUEST)) {
+		SimpleSAML_Utilities::redirect($_REQUEST['SessionLostURL']);
+	}
+}
+
 if (array_key_exists('username', $_REQUEST)) {
 	$username = $_REQUEST['username'];
 } else {