^^&&^^

Edit File: domain_lib.py

# -*- coding: utf-8 -*-

# domainlib.py - library for miscelaneous domain operations
#
# Copyright © Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2019 All Rights Reserved
#
# Licensed under CLOUD LINUX LICENSE AGREEMENT
# http://cloudlinux.com/docs/LICENSE.TXT

from __future__ import absolute_import
from clcommon import cpapi
from clcommon.clexception import FormattedException
from clcommon.cpapi import NotSupported

class DomainException(FormattedException):
    pass

class Domain(object):
    def __init__(self):
        self._userdomain_cache = None  # type: dict[str, str]

def get_user_domain(self, username):
        """
        Retrive main domain for supplied user
        :param username: User name
        :return: Domain name or N/A
        """
        if self._userdomain_cache is None:
            try:
                self._userdomain_cache = dict(cpapi.cpinfo(keyls=('cplogin', 'dns')))
            except NotSupported:
                self._userdomain_cache = dict()
        return self._userdomain_cache.get(username, 'N/A')

def get_user_name_by_domain(self, domain_name):
        """
        Retrive username by domain
        :param domain_name: Domain name
        :return: Username
        """
        try:
            username = cpapi.domain_owner(domain_name)
            if username:
                return username
        except (IOError, cpapi.cpapiexceptions.NotSupported) as e:
            raise DomainException(str(e))
        raise DomainException({'message': "There is no domain '%(domain)s'",
                               'context': {'domain': domain_name}})