mirror of
https://github.com/github/octodns.git
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380 lines
12 KiB
Python
380 lines
12 KiB
Python
#
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#
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#
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from __future__ import absolute_import, division, print_function, \
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unicode_literals
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from collections import defaultdict
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from requests import Session
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from time import strftime, gmtime
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import hashlib
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import hmac
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import logging
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from ..record import Record
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from .base import BaseProvider
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class DnsMadeEasyClientException(Exception):
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pass
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class DnsMadeEasyClientBadRequest(DnsMadeEasyClientException):
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@classmethod
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def build_message(self, errors):
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return '\n - {}'.format('\n - '.join(errors))
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def __init__(self, resp):
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errors = resp.json()['error']
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super(DnsMadeEasyClientBadRequest, self).__init__(
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self.build_message(errors))
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class DnsMadeEasyClientUnauthorized(DnsMadeEasyClientException):
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def __init__(self):
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super(DnsMadeEasyClientUnauthorized, self).__init__('Unauthorized')
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class DnsMadeEasyClientForbidden(DnsMadeEasyClientException):
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def __init__(self):
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super(DnsMadeEasyClientNotFound, self).__init__('Forbidden')
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class DnsMadeEasyClientNotFound(DnsMadeEasyClientException):
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def __init__(self):
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super(DnsMadeEasyClientNotFound, self).__init__('Not Found')
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class DnsMadeEasyClient(object):
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BASE = 'https://api.dnsmadeeasy.com/V2.0/dns/managed'
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def __init__(self, api_key, secret_key):
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self.api_key = api_key
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self.secret_key = secret_key
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self._sess = Session()
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self._domains = None
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def _current_time(self):
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return strftime("%a, %d %b %Y %H:%M:%S +0000", gmtime())
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def _hmac_hash(self, now):
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return hmac.new(self.secret_key.encode(), now.encode(),
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hashlib.sha1).hexdigest()
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def _request(self, method, path, params=None, data=None):
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now = self._current_time()
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hmac_hash = self._hmac_hash(now)
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headers = {
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'x-dnsme-apiKey': self.api_key,
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'x-dnsme-hmac': hmac_hash,
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'x-dnsme-requestDate': now
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}
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self._sess.headers.update(headers)
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url = '{}{}'.format(self.BASE, path)
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resp = self._sess.request(method, url, params=params, json=data)
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if resp.status_code == 400:
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raise DnsMadeEasyClientBadRequest(resp)
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if resp.status_code == 401:
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raise DnsMadeEasyClientUnauthorized()
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if resp.status_code == 403:
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raise DnsMadeEasyClientForbidden()
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if resp.status_code == 404:
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raise DnsMadeEasyClientNotFound()
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resp.raise_for_status()
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return resp
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@property
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def domains(self):
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if self._domains is None:
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zones = []
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# has pages in resp, do we need paging?
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resp = self._request('GET', '/').json()
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zones += resp['data']
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self._domains = {'{}.'.format(z['name']): z['id'] for z in zones}
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return self._domains
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def domain(self, name):
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path = '/id/{}'.format(name)
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return self._request('GET', path).json()
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def domain_create(self, name):
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self._request('POST', '/', data={'name': name})
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def records(self, zone_name):
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zone_id = self.domains.get(zone_name, False)
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path = '/{}/records'.format(zone_id)
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ret = []
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# has pages in resp, do we need paging?
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resp = self._request('GET', path).json()
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ret += resp['data']
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# change relative values to absolute
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for record in ret:
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value = record['value']
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if record['type'] in ['CNAME', 'MX', 'NS', 'SRV']:
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if value == '':
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record['value'] = zone_name
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elif not value.endswith('.'):
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record['value'] = '{}.{}'.format(value, zone_name)
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return ret
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def record_create(self, zone_name, params):
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zone_id = self.domains.get(zone_name, False)
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path = '/{}/records'.format(zone_id)
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self._request('POST', path, data=params)
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def record_delete(self, zone_name, record_id):
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zone_id = self.domains.get(zone_name, False)
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path = '/{}/records/{}'.format(zone_id, record_id)
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self._request('DELETE', path)
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class DnsMadeEasyProvider(BaseProvider):
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'''
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DNSMadeEasy DNS provider using v2.0 API
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dnsmadeeasy:
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class: octodns.provider.dnsmadeeasy.DnsMadeEasyProvider
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api_key: env/DNSMADEEASY_API_KEY
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secret_key: env/DNSMADEEASY_SECRET_KEY
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'''
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SUPPORTS_GEO = False
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SUPPORTS = set(('A', 'AAAA', 'CAA', 'CNAME', 'MX',
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'NS', 'PTR', 'SPF', 'SRV', 'TXT'))
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def __init__(self, id, api_key, secret_key, *args, **kwargs):
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self.log = logging.getLogger('DnsMadeEasyProvider[{}]'.format(id))
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self.log.debug('__init__: id=%s, api_key=***, secret_key=***', id)
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super(DnsMadeEasyProvider, self).__init__(id, *args, **kwargs)
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self._client = DnsMadeEasyClient(api_key, secret_key)
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self._zone_records = {}
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def _data_for_multiple(self, _type, records):
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return {
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'ttl': records[0]['ttl'],
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'type': _type,
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'values': [r['value'] for r in records]
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}
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_data_for_A = _data_for_multiple
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_data_for_AAAA = _data_for_multiple
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_data_for_NS = _data_for_multiple
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def _data_for_CAA(self, _type, records):
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values = []
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for record in records:
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values.append({
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'flags': record['issuerCritical'],
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'tag': record['caaType'],
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'value': record['value'][1:-1]
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})
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return {
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'ttl': records[0]['ttl'],
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'type': _type,
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'values': values
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}
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def _data_for_TXT(self, _type, records):
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values = [value['value'].replace(';', '\;') for value in records]
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return {
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'ttl': records[0]['ttl'],
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'type': _type,
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'values': values
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}
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_data_for_SPF = _data_for_TXT
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def _data_for_MX(self, _type, records):
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values = []
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for record in records:
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values.append({
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'preference': record['mxLevel'],
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'exchange': record['value']
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})
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return {
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'ttl': records[0]['ttl'],
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'type': _type,
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'values': values
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}
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def _data_for_single(self, _type, records):
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record = records[0]
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return {
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'ttl': record['ttl'],
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'type': _type,
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'value': record['value']
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}
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_data_for_CNAME = _data_for_single
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_data_for_PTR = _data_for_single
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def _data_for_SRV(self, _type, records):
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values = []
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for record in records:
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values.append({
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'port': record['port'],
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'priority': record['priority'],
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'target': record['value'],
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'weight': record['weight']
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})
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return {
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'type': _type,
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'ttl': records[0]['ttl'],
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'values': values
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}
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def zone_records(self, zone):
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if zone.name not in self._zone_records:
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try:
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self._zone_records[zone.name] = \
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self._client.records(zone.name)
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except DnsMadeEasyClientNotFound:
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return []
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return self._zone_records[zone.name]
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def populate(self, zone, target=False, lenient=False):
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self.log.debug('populate: name=%s, target=%s, lenient=%s', zone.name,
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target, lenient)
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values = defaultdict(lambda: defaultdict(list))
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for record in self.zone_records(zone):
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_type = record['type']
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values[record['name']][record['type']].append(record)
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before = len(zone.records)
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for name, types in values.items():
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for _type, records in types.items():
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data_for = getattr(self, '_data_for_{}'.format(_type))
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record = Record.new(zone, name, data_for(_type, records),
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source=self, lenient=lenient)
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zone.add_record(record)
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self.log.info('populate: found %s records',
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len(zone.records) - before)
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def _params_for_multiple(self, record):
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for value in record.values:
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yield {
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'value': value,
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'name': record.name,
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'ttl': record.ttl,
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'type': record._type
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}
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_params_for_A = _params_for_multiple
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_params_for_AAAA = _params_for_multiple
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# An A record with this name must exist in this domain for
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# this NS record to be valid. Need to handle checking if
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# there is an A record before creating NS
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_params_for_NS = _params_for_multiple
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def _params_for_single(self, record):
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yield {
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'value': record.value,
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'name': record.name,
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'ttl': record.ttl,
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'type': record._type
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}
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_params_for_CNAME = _params_for_single
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_params_for_PTR = _params_for_single
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def _params_for_MX(self, record):
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for value in record.values:
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yield {
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'value': value.exchange,
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'name': record.name,
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'mxLevel': value.preference,
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'ttl': record.ttl,
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'type': record._type
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}
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def _params_for_SRV(self, record):
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for value in record.values:
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yield {
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'value': value.target,
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'name': record.name,
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'port': value.port,
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'priority': value.priority,
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'ttl': record.ttl,
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'type': record._type,
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'weight': value.weight
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}
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def _params_for_TXT(self, record):
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# DNSMadeEasy does not want values escaped
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for value in record.chunked_values:
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yield {
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'value': value.replace('\;', ';'),
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'name': record.name,
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'ttl': record.ttl,
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'type': record._type
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}
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_params_for_SPF = _params_for_TXT
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def _params_for_CAA(self, record):
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for value in record.values:
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yield {
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'value': value.value,
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'issuerCritical': value.flags,
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'name': record.name,
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'caaType': value.tag,
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'ttl': record.ttl,
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'type': record._type
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}
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def _apply_Create(self, change):
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new = change.new
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params_for = getattr(self, '_params_for_{}'.format(new._type))
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for params in params_for(new):
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self._client.record_create(new.zone.name, params)
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def _apply_Update(self, change):
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self._apply_Delete(change)
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self._apply_Create(change)
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def _apply_Delete(self, change):
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existing = change.existing
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zone = existing.zone
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for record in self.zone_records(zone):
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if existing.name == record['name'] and \
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existing._type == record['type']:
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self._client.record_delete(zone.name, record['id'])
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def _apply(self, plan):
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desired = plan.desired
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changes = plan.changes
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self.log.debug('_apply: zone=%s, len(changes)=%d', desired.name,
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len(changes))
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domain_name = desired.name[:-1]
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try:
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self._client.domain(domain_name)
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except DnsMadeEasyClientNotFound:
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self.log.debug('_apply: no matching zone, creating domain')
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self._client.domain_create(domain_name)
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for change in changes:
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class_name = change.__class__.__name__
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getattr(self, '_apply_{}'.format(class_name))(change)
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# Clear out the cache if any
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self._zone_records.pop(desired.name, None)
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