修改好友备注，限制必须是当前用户好友

app/enterprise/controller/Friend.php

@@ -166,6 +166,10 @@ class Friend extends BaseController
         if(!$friend_id){
             return warning(lang('system.notNull'));
         }
+        $query = FriendModel::where(['friend_id' => $friend_id,'create_user' => $this->uid])->find();
+        if (!$query) {
+            return warning(lang('system.fail'));
+        }
         FriendModel::update(['nickname'=>$nickname],['friend_id'=>$friend_id]);
         return success(lang('system.editOk'));
     }