fix up 2

application/controllers/infofix.php

@@ -29,9 +29,7 @@ class infofix extends CI_Controller
     if (
       empty($site) ||
       empty($keys) ||
-      mb_stripos($keys, '/') === false ||
-      mb_stripos($keys, 'undefined') !== false ||
-      mb_stripos($keys, 'null') !== false
+      mb_stripos($keys, '/') === false
     ) {
       echo json_encode(array());
       return false;
@@ -118,7 +116,13 @@ class infofix extends CI_Controller
     //return true;
 
     // 容错
-    if (empty($site) || count($keyArr) != 4 || strpos($keys, '/') === false) {
+    if (
+      empty($site) ||
+      count($keyArr) != 4 ||
+      mb_stripos($keys, '/') === false ||
+      mb_stripos($keys, 'undefined') !== false ||
+      mb_stripos($keys, 'null') !== false
+    ) {
       echo json_encode(array());
       return false;
     }