mirror of
https://github.com/github/octodns.git
synced 2024-05-11 05:55:00 +00:00
882 lines
29 KiB
Python
882 lines
29 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 base64 import b64encode
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from six import string_types
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from pycountry_convert import country_alpha2_to_continent_code
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import hashlib
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import hmac
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import logging
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import time
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from ..record import Record
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from . import ProviderException
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from .base import BaseProvider
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class ConstellixClientException(ProviderException):
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pass
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class ConstellixClientBadRequest(ConstellixClientException):
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def __init__(self, resp):
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errors = '\n - '.join(resp.json()['errors'])
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super(ConstellixClientBadRequest, self).__init__(f'\n - {errors}')
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class ConstellixClientUnauthorized(ConstellixClientException):
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def __init__(self):
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super(ConstellixClientUnauthorized, self).__init__('Unauthorized')
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class ConstellixClientNotFound(ConstellixClientException):
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def __init__(self):
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super(ConstellixClientNotFound, self).__init__('Not Found')
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class ConstellixClient(object):
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BASE = 'https://api.dns.constellix.com/v1'
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def __init__(self, api_key, secret_key, ratelimit_delay=0.0):
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self.api_key = api_key
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self.secret_key = secret_key
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self.ratelimit_delay = ratelimit_delay
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self._sess = Session()
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self._sess.headers.update({'x-cnsdns-apiKey': self.api_key})
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self._domains = None
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self._pools = {'A': None, 'AAAA': None, 'CNAME': None}
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self._geofilters = None
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def _current_time(self):
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return str(int(time.time() * 1000))
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def _hmac_hash(self, now):
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return hmac.new(self.secret_key.encode('utf-8'), now.encode('utf-8'),
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digestmod=hashlib.sha1).digest()
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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-cnsdns-hmac': b64encode(hmac_hash),
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'x-cnsdns-requestDate': now
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}
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url = f'{self.BASE}{path}'
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resp = self._sess.request(method, url, headers=headers,
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params=params, json=data)
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if resp.status_code == 400:
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raise ConstellixClientBadRequest(resp)
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if resp.status_code == 401:
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raise ConstellixClientUnauthorized()
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if resp.status_code == 404:
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raise ConstellixClientNotFound()
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resp.raise_for_status()
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time.sleep(self.ratelimit_delay)
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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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resp = self._request('GET', '/domains').json()
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zones += resp
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self._domains = {f'{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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zone_id = self.domains.get(name, False)
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if not zone_id:
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raise ConstellixClientNotFound()
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path = f'/domains/{zone_id}'
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return self._request('GET', path).json()
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def domain_create(self, name):
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resp = self._request('POST', '/domains', data={'names': [name]})
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# Add newly created zone to domain cache
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self._domains[f'{name}.'] = resp.json()[0]['id']
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def domain_enable_geoip(self, domain_name):
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domain = self.domain(domain_name)
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if domain['hasGeoIP'] is False:
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domain_id = self.domains[domain_name]
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self._request(
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'PUT',
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f'/domains/{domain_id}',
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data={'hasGeoIP': True}
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)
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def _absolutize_value(self, value, zone_name):
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if value == '':
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value = zone_name
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elif not value.endswith('.'):
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value = f'{value}.{zone_name}'
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return value
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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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if not zone_id:
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raise ConstellixClientNotFound()
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path = f'/domains/{zone_id}/records'
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resp = self._request('GET', path).json()
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for record in resp:
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# change ANAME records to ALIAS
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if record['type'] == 'ANAME':
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record['type'] = 'ALIAS'
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# change relative values to absolute
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value = record['value']
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if record['type'] in ['ALIAS', 'CNAME', 'MX', 'NS', 'SRV']:
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if isinstance(value, string_types):
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record['value'] = self._absolutize_value(value,
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zone_name)
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if isinstance(value, list):
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for v in value:
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v['value'] = self._absolutize_value(v['value'],
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zone_name)
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return resp
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def record_create(self, zone_name, record_type, params):
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# change ALIAS records to ANAME
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if record_type == 'ALIAS':
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record_type = 'ANAME'
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zone_id = self.domains.get(zone_name, False)
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path = f'/domains/{zone_id}/records/{record_type}'
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self._request('POST', path, data=params)
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def record_delete(self, zone_name, record_type, record_id):
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# change ALIAS records to ANAME
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if record_type == 'ALIAS':
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record_type = 'ANAME'
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zone_id = self.domains.get(zone_name, False)
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path = f'/domains/{zone_id}/records/{record_type}/{record_id}'
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self._request('DELETE', path)
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def pools(self, pool_type):
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if self._pools[pool_type] is None:
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self._pools[pool_type] = {}
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path = f'/pools/{pool_type}'
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response = self._request('GET', path).json()
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for pool in response:
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self._pools[pool_type][pool['id']] = pool
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return self._pools[pool_type].values()
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def pool(self, pool_type, pool_name):
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pools = self.pools(pool_type)
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for pool in pools:
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if pool['name'] == pool_name and pool['type'] == pool_type:
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return pool
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return None
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def pool_by_id(self, pool_type, pool_id):
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pools = self.pools(pool_type)
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for pool in pools:
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if pool['id'] == pool_id:
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return pool
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def pool_create(self, data):
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path = f'/pools/{data.get("type")}'
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# This returns a list of items, we want the first one
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response = self._request('POST', path, data=data).json()
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# Update our cache
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self._pools[data.get('type')][response[0]['id']] = response[0]
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return response[0]
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def pool_update(self, pool_id, data):
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path = f'/pools/{data.get("type")}/{pool_id}'
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try:
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self._request('PUT', path, data=data).json()
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except ConstellixClientBadRequest as e:
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message = str(e)
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if not message or "no changes to save" not in message:
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raise e
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return data
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def pool_delete(self, pool_type, pool_id):
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path = f'/pools/{pool_type}/{pool_id}'
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self._request('DELETE', path)
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# Update our cache
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if self._pools[pool_type] is not None:
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self._pools[pool_type].pop(pool_id, None)
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def geofilters(self):
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if self._geofilters is None:
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self._geofilters = {}
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path = '/geoFilters'
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response = self._request('GET', path).json()
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for geofilter in response:
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self._geofilters[geofilter['id']] = geofilter
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return self._geofilters.values()
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def geofilter(self, geofilter_name):
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geofilters = self.geofilters()
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for geofilter in geofilters:
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if geofilter['name'] == geofilter_name:
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return geofilter
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return None
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def geofilter_by_id(self, geofilter_id):
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geofilters = self.geofilters()
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for geofilter in geofilters:
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if geofilter['id'] == geofilter_id:
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return geofilter
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def geofilter_create(self, data):
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path = '/geoFilters'
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response = self._request('POST', path, data=data).json()
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# Update our cache
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self._geofilters[response[0]['id']] = response[0]
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return response[0]
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def geofilter_update(self, geofilter_id, data):
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path = f'/geoFilters/{geofilter_id}'
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try:
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self._request('PUT', path, data=data).json()
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except ConstellixClientBadRequest as e:
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message = str(e)
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if not message or "no changes to save" not in message:
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raise e
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return data
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def geofilter_delete(self, geofilter_id):
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path = f'/geoFilters/{geofilter_id}'
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self._request('DELETE', path)
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# Update our cache
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if self._geofilters is not None:
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self._geofilters.pop(geofilter_id, None)
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class ConstellixProvider(BaseProvider):
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'''
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Constellix DNS provider
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constellix:
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class: octodns.provider.constellix.ConstellixProvider
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# Your Contellix api key (required)
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api_key: env/CONSTELLIX_API_KEY
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# Your Constellix secret key (required)
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secret_key: env/CONSTELLIX_SECRET_KEY
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# Amount of time to wait between requests to avoid
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# ratelimit (optional)
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ratelimit_delay: 0.0
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'''
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SUPPORTS_GEO = False
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SUPPORTS_DYNAMIC = True
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SUPPORTS = set(('A', 'AAAA', 'ALIAS', 'CAA', 'CNAME', 'MX',
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'NS', 'PTR', 'SPF', 'SRV', 'TXT'))
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def __init__(self, id, api_key, secret_key, ratelimit_delay=0.0,
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*args, **kwargs):
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self.log = logging.getLogger(f'ConstellixProvider[{id}]')
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self.log.debug('__init__: id=%s, api_key=***, secret_key=***', id)
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super(ConstellixProvider, self).__init__(id, *args, **kwargs)
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self._client = ConstellixClient(api_key, secret_key, ratelimit_delay)
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self._zone_records = {}
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def _data_for_multiple(self, _type, records):
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record = records[0]
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if record['recordOption'] == 'pools':
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return self._data_for_pool(_type, records)
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return {
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'ttl': record['ttl'],
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'type': _type,
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'values': record['value']
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}
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def _data_for_pool(self, _type, records):
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default_values = []
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fallback_pool_name = None
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pools = {}
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rules = []
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for record in records:
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# fetch record pool data
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pool_id = record['pools'][0]
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pool = self._client.pool_by_id(_type, pool_id)
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geofilter_id = 1
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if 'geolocation' in record.keys() \
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and record['geolocation'] is not None:
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# fetch record geofilter data
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geofilter_id = record['geolocation']['geoipFilter']
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geofilter = self._client.geofilter_by_id(geofilter_id)
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pool_name = pool['name'].split(':')[-1]
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# fetch default values from the World Default pool
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if geofilter_id == 1:
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fallback_pool_name = pool_name
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for value in pool['values']:
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default_values.append(value['value'])
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# populate pools
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pools[pool_name] = {
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'fallback': None,
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'values': []
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}
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for value in pool['values']:
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pools[pool_name]['values'].append({
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'value': value['value'],
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'weight': value['weight']
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})
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# populate rules
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if geofilter_id == 1:
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rules.append({'pool': pool_name})
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else:
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geos = []
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if 'geoipContinents' in geofilter.keys():
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for continent_code in geofilter['geoipContinents']:
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geos.append(continent_code)
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if 'geoipCountries' in geofilter.keys():
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for country_code in geofilter['geoipCountries']:
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continent_code = \
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country_alpha2_to_continent_code(country_code)
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geos.append(f'{continent_code}-{country_code}')
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if 'regions' in geofilter.keys():
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for region in geofilter['regions']:
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geos.append(f'{region["continentCode"]}-'
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f'{region["countryCode"]}-'
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f'{region["regionCode"]}')
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rules.append({
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'pool': pool_name,
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'geos': sorted(geos)
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})
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# set fallback pool
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for pool_name in pools:
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if pool_name != fallback_pool_name:
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pools[pool_name]['fallback'] = fallback_pool_name
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res = {
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'ttl': record['ttl'],
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'type': _type,
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'dynamic': {
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'pools': dict(
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sorted(pools.items(), key=lambda t: t[0])),
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'rules': sorted(rules, key=lambda t: t['pool'])
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},
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'values': default_values
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}
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return res
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_data_for_A = _data_for_multiple
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_data_for_AAAA = _data_for_multiple
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def _data_for_CAA(self, _type, records):
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values = []
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record = records[0]
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for value in record['value']:
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values.append({
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'flags': value['flag'],
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'tag': value['tag'],
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'value': value['data']
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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_NS(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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'values': [value['value'] for value in record['value']]
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}
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def _data_for_ALIAS(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'][0]['value']
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}
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_data_for_PTR = _data_for_ALIAS
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def _data_for_TXT(self, _type, records):
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values = [value['value'].replace(';', '\\;')
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for value in records[0]['value']]
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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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record = records[0]
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for value in record['value']:
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values.append({
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'preference': value['level'],
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'exchange': value['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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def _data_for_SRV(self, _type, records):
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values = []
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record = records[0]
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for value in record['value']:
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values.append({
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'port': value['port'],
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'priority': value['priority'],
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'target': value['value'],
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'weight': value['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 ConstellixClientNotFound:
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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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if _type not in self.SUPPORTS:
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self.log.warning('populate: skipping unsupported %s record',
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_type)
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continue
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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, f'_data_for_{_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, lenient=lenient)
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exists = zone.name in self._zone_records
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self.log.info('populate: found %s records, exists=%s',
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len(zone.records) - before, exists)
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return exists
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def _params_for_multiple(self, record):
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yield {
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'name': record.name,
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'ttl': record.ttl,
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'roundRobin': [{
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'value': value
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} for value in record.values]
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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
|
|
# there is an A record before creating NS
|
|
_params_for_NS = _params_for_multiple
|
|
|
|
def _params_for_single(self, record):
|
|
yield {
|
|
'name': record.name,
|
|
'ttl': record.ttl,
|
|
'host': record.value,
|
|
}
|
|
|
|
_params_for_CNAME = _params_for_single
|
|
|
|
def _params_for_ALIAS(self, record):
|
|
yield {
|
|
'name': record.name,
|
|
'ttl': record.ttl,
|
|
'roundRobin': [{
|
|
'value': record.value,
|
|
'disableFlag': False
|
|
}]
|
|
}
|
|
|
|
_params_for_PTR = _params_for_ALIAS
|
|
|
|
def _params_for_MX(self, record):
|
|
values = []
|
|
for value in record.values:
|
|
values.append({
|
|
'value': value.exchange,
|
|
'level': value.preference
|
|
})
|
|
yield {
|
|
'value': value.exchange,
|
|
'name': record.name,
|
|
'ttl': record.ttl,
|
|
'roundRobin': values
|
|
}
|
|
|
|
def _params_for_SRV(self, record):
|
|
values = []
|
|
for value in record.values:
|
|
values.append({
|
|
'value': value.target,
|
|
'priority': value.priority,
|
|
'weight': value.weight,
|
|
'port': value.port
|
|
})
|
|
for value in record.values:
|
|
yield {
|
|
'name': record.name,
|
|
'ttl': record.ttl,
|
|
'roundRobin': values
|
|
}
|
|
|
|
def _params_for_TXT(self, record):
|
|
# Constellix does not want values escaped
|
|
values = []
|
|
for value in record.chunked_values:
|
|
values.append({
|
|
'value': value.replace('\\;', ';')
|
|
})
|
|
yield {
|
|
'name': record.name,
|
|
'ttl': record.ttl,
|
|
'roundRobin': values
|
|
}
|
|
|
|
_params_for_SPF = _params_for_TXT
|
|
|
|
def _params_for_CAA(self, record):
|
|
values = []
|
|
for value in record.values:
|
|
values.append({
|
|
'tag': value.tag,
|
|
'data': value.value,
|
|
'flag': value.flags,
|
|
})
|
|
yield {
|
|
'name': record.name,
|
|
'ttl': record.ttl,
|
|
'roundRobin': values
|
|
}
|
|
|
|
def _handle_pools(self, record):
|
|
# If we don't have dynamic, then there's no pools
|
|
if not getattr(record, 'dynamic', False):
|
|
return []
|
|
|
|
res_pools = []
|
|
|
|
for i, rule in enumerate(record.dynamic.rules):
|
|
pool_name = rule.data.get('pool')
|
|
pool = record.dynamic.pools.get(pool_name)
|
|
values = pool.data.get('values')
|
|
|
|
# Make a pool name based on zone, record, type and name
|
|
generated_pool_name = \
|
|
f'{record.zone.name}:{record.name}:{record._type}:{pool_name}'
|
|
|
|
# OK, pool is valid, let's create it or update it
|
|
self.log.debug("Creating pool %s", generated_pool_name)
|
|
pool_obj = self._create_update_pool(
|
|
pool_name = generated_pool_name,
|
|
pool_type = record._type,
|
|
ttl = record.ttl,
|
|
values = values
|
|
)
|
|
|
|
# Now will crate GeoFilter for the pool
|
|
continents = []
|
|
countries = []
|
|
regions = []
|
|
|
|
for geo in rule.data.get('geos', []):
|
|
codes = geo.split('-')
|
|
n = len(geo)
|
|
if n == 2:
|
|
continents.append(geo)
|
|
elif n == 5:
|
|
countries.append(codes[1])
|
|
else:
|
|
regions.append({
|
|
'continentCode': codes[0],
|
|
'countryCode': codes[1],
|
|
'regionCode': codes[2]
|
|
})
|
|
|
|
if len(continents) == 0 and \
|
|
len(countries) == 0 and \
|
|
len(regions) == 0:
|
|
pool_obj['geofilter'] = 1
|
|
else:
|
|
self.log.debug(
|
|
"Creating geofilter %s",
|
|
generated_pool_name
|
|
)
|
|
geofilter_obj = self._create_update_geofilter(
|
|
generated_pool_name,
|
|
continents,
|
|
countries,
|
|
regions
|
|
)
|
|
pool_obj['geofilter'] = geofilter_obj['id']
|
|
|
|
res_pools.append(pool_obj)
|
|
return res_pools
|
|
|
|
def _create_update_pool(self, pool_name, pool_type, ttl, values):
|
|
pool = {
|
|
'name': pool_name,
|
|
'type': pool_type,
|
|
'numReturn': 1,
|
|
'minAvailableFailover': 1,
|
|
'ttl': ttl,
|
|
'values': values
|
|
}
|
|
existing_pool = self._client.pool(pool_type, pool_name)
|
|
if not existing_pool:
|
|
return self._client.pool_create(pool)
|
|
|
|
pool_id = existing_pool['id']
|
|
updated_pool = self._client.pool_update(pool_id, pool)
|
|
updated_pool['id'] = pool_id
|
|
return updated_pool
|
|
|
|
def _create_update_geofilter(
|
|
self,
|
|
geofilter_name,
|
|
continents,
|
|
countries,
|
|
regions):
|
|
geofilter = {
|
|
'filterRulesLimit': 100,
|
|
'name': geofilter_name,
|
|
'geoipContinents': continents,
|
|
'geoipCountries': countries,
|
|
'regions': regions
|
|
}
|
|
if len(regions) == 0:
|
|
geofilter.pop('regions', None)
|
|
|
|
existing_geofilter = self._client.geofilter(geofilter_name)
|
|
if not existing_geofilter:
|
|
return self._client.geofilter_create(geofilter)
|
|
|
|
geofilter_id = existing_geofilter['id']
|
|
updated_geofilter = self._client.geofilter_update(
|
|
geofilter_id, geofilter)
|
|
updated_geofilter['id'] = geofilter_id
|
|
return updated_geofilter
|
|
|
|
def _apply_Create(self, change, domain_name):
|
|
new = change.new
|
|
params_for = getattr(self, f'_params_for_{new._type}')
|
|
pools = self._handle_pools(new)
|
|
|
|
for params in params_for(new):
|
|
if len(pools) == 0:
|
|
self._client.record_create(new.zone.name, new._type, params)
|
|
elif len(pools) == 1:
|
|
params['pools'] = [pools[0]['id']]
|
|
params['recordOption'] = 'pools'
|
|
params.pop('roundRobin', None)
|
|
self.log.debug(
|
|
"Creating record %s %s",
|
|
new.zone.name,
|
|
new._type
|
|
)
|
|
self._client.record_create(
|
|
new.zone.name,
|
|
new._type,
|
|
params
|
|
)
|
|
else:
|
|
# To use GeoIPFilter feature we need to enable it for domain
|
|
self.log.debug("Enabling domain %s geo support", domain_name)
|
|
self._client.domain_enable_geoip(domain_name)
|
|
|
|
# First we need to create World Default (1) Record
|
|
for pool in pools:
|
|
if pool['geofilter'] != 1:
|
|
continue
|
|
params['pools'] = [pool['id']]
|
|
params['recordOption'] = 'pools'
|
|
params['geolocation'] = {
|
|
'geoipUserRegion': [pool['geofilter']]
|
|
}
|
|
params.pop('roundRobin', None)
|
|
self.log.debug(
|
|
"Creating record %s %s",
|
|
new.zone.name,
|
|
new._type)
|
|
self._client.record_create(
|
|
new.zone.name,
|
|
new._type,
|
|
params
|
|
)
|
|
|
|
# Now we can create the rest of records
|
|
for pool in pools:
|
|
if pool['geofilter'] == 1:
|
|
continue
|
|
params['pools'] = [pool['id']]
|
|
params['recordOption'] = 'pools'
|
|
params['geolocation'] = {
|
|
'geoipUserRegion': [pool['geofilter']]
|
|
}
|
|
params.pop('roundRobin', None)
|
|
self.log.debug(
|
|
"Creating record %s %s",
|
|
new.zone.name,
|
|
new._type)
|
|
self._client.record_create(
|
|
new.zone.name,
|
|
new._type,
|
|
params)
|
|
|
|
def _apply_Update(self, change, domain_name):
|
|
self._apply_Delete(change, domain_name)
|
|
self._apply_Create(change, domain_name)
|
|
|
|
def _apply_Delete(self, change, domain_name):
|
|
existing = change.existing
|
|
zone = existing.zone
|
|
|
|
# if it is dynamic pools record, we need to delete World Default last
|
|
world_default_record = None
|
|
|
|
for record in self.zone_records(zone):
|
|
if existing.name == record['name'] and \
|
|
existing._type == record['type']:
|
|
|
|
# handle dynamic record
|
|
if record['recordOption'] == 'pools':
|
|
if record['geolocation'] is None:
|
|
world_default_record = record
|
|
else:
|
|
if record['geolocation']['geoipFilter'] == 1:
|
|
world_default_record = record
|
|
else:
|
|
# delete record
|
|
self.log.debug(
|
|
"Deleting record %s %s",
|
|
zone.name,
|
|
record['type'])
|
|
self._client.record_delete(
|
|
zone.name,
|
|
record['type'],
|
|
record['id'])
|
|
# delete geofilter
|
|
self.log.debug(
|
|
"Deleting geofilter %s",
|
|
zone.name)
|
|
self._client.geofilter_delete(
|
|
record['geolocation']['geoipFilter'])
|
|
|
|
# delete pool
|
|
self.log.debug(
|
|
"Deleting pool %s %s",
|
|
zone.name,
|
|
record['type'])
|
|
self._client.pool_delete(
|
|
record['type'],
|
|
record['pools'][0])
|
|
|
|
# for all the rest records
|
|
else:
|
|
self._client.record_delete(
|
|
zone.name, record['type'], record['id'])
|
|
# delete World Default
|
|
if world_default_record:
|
|
# delete record
|
|
self.log.debug(
|
|
"Deleting record %s %s",
|
|
zone.name,
|
|
world_default_record['type']
|
|
)
|
|
self._client.record_delete(
|
|
zone.name,
|
|
world_default_record['type'],
|
|
world_default_record['id']
|
|
)
|
|
# delete pool
|
|
self.log.debug(
|
|
"Deleting pool %s %s",
|
|
zone.name,
|
|
world_default_record['type']
|
|
)
|
|
self._client.pool_delete(
|
|
world_default_record['type'],
|
|
world_default_record['pools'][0]
|
|
)
|
|
|
|
def _apply(self, plan):
|
|
desired = plan.desired
|
|
changes = plan.changes
|
|
self.log.debug('_apply: zone=%s, len(changes)=%d', desired.name,
|
|
len(changes))
|
|
|
|
try:
|
|
self._client.domain(desired.name)
|
|
except ConstellixClientNotFound:
|
|
self.log.debug('_apply: no matching zone, creating domain')
|
|
self._client.domain_create(desired.name[:-1])
|
|
|
|
for change in changes:
|
|
class_name = change.__class__.__name__
|
|
getattr(self, f'_apply_{class_name}')(
|
|
change,
|
|
desired.name)
|
|
|
|
# Clear out the cache if any
|
|
self._zone_records.pop(desired.name, None)
|