Index: modules/blogapi/blogapi.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/blogapi/blogapi.module,v
retrieving revision 1.115.2.1
diff -u -p -r1.115.2.1 blogapi.module
--- modules/blogapi/blogapi.module	7 Feb 2008 20:11:02 -0000	1.115.2.1
+++ modules/blogapi/blogapi.module	9 Mar 2008 17:00:03 -0000
@@ -390,6 +390,11 @@ function blogapi_metaweblog_new_media_ob
  * associated with a blog node.
  */
 function blogapi_metaweblog_get_category_list($blogid, $username, $password) {
+  $user = blogapi_validate_user($username, $password);
+  if (!$user->uid) {
+    return blogapi_error($user);
+  }
+
   if (($error = _blogapi_validate_blogid($blogid)) !== TRUE) {
     // Return an error if not configured type.
     return $error;