create received_dir_path with correct permissions

opt/ahenk/base/system/system.py

@@ -126,8 +126,8 @@ class System:
         def received_dir_path():
             path = '/tmp/.ahenk/'
             if Util.is_exist(path) is False:
-                # TODO write permission add
                 Util.create_directory(path)
+                Util.set_permission(path, '777')
             return path
 
     class Process(object):