user_name=self.user.replace(self.authority+".", '')
if user_name.count(".") > 0:
user_name = user_name.replace(".", '_')
self.user=self.authority + "." + user_name
user_name=self.user.replace(self.authority+".", '')
if user_name.count(".") > 0:
user_name = user_name.replace(".", '_')
self.user=self.authority + "." + user_name