Bug Fixes: Update to fix LTI provider as session not existing under s…

…ome circumstances.

git-svn-id: https://xerteonlinetoolkits.googlecode.com/svn/trunk@449 912cdd6b-5c7d-d5a7-a2ba-d0f0cdb91641

LTI/index.php

@@ -16,6 +16,10 @@
 require_once '../' . $xerte_toolkits_site->php_library_path . "url_library.php";
 
 
+//error_reporting(E_ALL);
+//ini_set(display_errors,"ON");
+
+
 $mysql_id = database_connect("LTI database connect success", "LTI database connect fail");
 
 
@@ -99,7 +103,7 @@ function auth($update = false) {
 
 
 } else {
-if(isset($_SESSION['toolkits_logon_username'])) {
+if(!isset($_SESSION['toolkits_logon_username'])) {
   $_SESSION['toolkits_logon_username']=$returned[0];
 }
   $time1 = strtotime($returned[1]);

play.php

@@ -241,7 +241,11 @@ function check_security_type($security_setting)
     } else {
       $lti = new UoN_LTI($mysqli);
     }
+    if(session_id()=='') {
+      session_start();
+    }
     $lti->init_lti();
+
   }