deb-designate/designate/mdns/xfr.py

58 lines
1.8 KiB
Python

# Copyright 2014 Hewlett-Packard Development Company, L.P.
#
# Author: Endre Karlson <endre.karlson@hp.com>
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_config import cfg
from oslo_utils import timeutils
from oslo_log import log as logging
from designate import dnsutils
from designate import exceptions
from designate.mdns import base
LOG = logging.getLogger(__name__)
class XFRMixin(object):
"""
Utility mixin that holds common methods for XFR functionality.
"""
def domain_sync(self, context, domain, servers=None):
servers = servers or domain.masters
servers = dnsutils.expand_servers(servers)
timeout = cfg.CONF["service:mdns"].xfr_timeout
try:
dnspython_zone = dnsutils.do_axfr(domain.name, servers,
timeout=timeout)
except exceptions.XFRFailure as e:
LOG.warning(e.message)
return
zone = dnsutils.from_dnspython_zone(dnspython_zone)
domain.update(zone)
domain.transferred_at = timeutils.utcnow()
self.central_api.update_domain(context, domain, increment_serial=False)
class XfrEndpoint(base.BaseEndpoint, XFRMixin):
RPC_API_VERSION = '1.0'
RPC_API_NAMESPACE = 'xfr'
def perform_zone_xfr(self, context, domain):
self.domain_sync(context, domain)