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e048da1e38
* Isort execution * Fix pylint, adapt coverage * New isort * Fix magic_typing lint * Second round * Fix pylint * Third round. Store isort configuration * Fix latest mistakes * Other fixes * Add newline * Fix lint errors
108 lines
3.7 KiB
Python
108 lines
3.7 KiB
Python
"""DNS Authenticator for Linode."""
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import logging
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import re
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from lexicon.providers import linode
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from lexicon.providers import linode4
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import zope.interface
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from certbot import errors
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from certbot import interfaces
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from certbot.plugins import dns_common
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from certbot.plugins import dns_common_lexicon
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logger = logging.getLogger(__name__)
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API_KEY_URL = 'https://manager.linode.com/profile/api'
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API_KEY_URL_V4 = 'https://cloud.linode.com/profile/tokens'
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@zope.interface.implementer(interfaces.IAuthenticator)
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@zope.interface.provider(interfaces.IPluginFactory)
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class Authenticator(dns_common.DNSAuthenticator):
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"""DNS Authenticator for Linode
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This Authenticator uses the Linode API to fulfill a dns-01 challenge.
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"""
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description = 'Obtain certs using a DNS TXT record (if you are using Linode for DNS).'
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def __init__(self, *args, **kwargs):
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super(Authenticator, self).__init__(*args, **kwargs)
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self.credentials = None
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@classmethod
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def add_parser_arguments(cls, add): # pylint: disable=arguments-differ
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super(Authenticator, cls).add_parser_arguments(add, default_propagation_seconds=1200)
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add('credentials', help='Linode credentials INI file.')
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def more_info(self): # pylint: disable=missing-docstring,no-self-use
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return 'This plugin configures a DNS TXT record to respond to a dns-01 challenge using ' + \
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'the Linode API.'
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def _setup_credentials(self):
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self.credentials = self._configure_credentials(
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'credentials',
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'Linode credentials INI file',
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{
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'key': 'API key for Linode account, obtained from {0} or {1}'
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.format(API_KEY_URL, API_KEY_URL_V4)
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}
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)
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def _perform(self, domain, validation_name, validation):
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self._get_linode_client().add_txt_record(domain, validation_name, validation)
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def _cleanup(self, domain, validation_name, validation):
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self._get_linode_client().del_txt_record(domain, validation_name, validation)
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def _get_linode_client(self):
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api_key = self.credentials.conf('key')
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api_version = self.credentials.conf('version')
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if api_version == '':
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api_version = None
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if not api_version:
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api_version = 3
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# Match for v4 api key
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regex_v4 = re.compile('^[0-9a-f]{64}$')
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regex_match = regex_v4.match(api_key)
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if regex_match:
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api_version = 4
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else:
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api_version = int(api_version)
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return _LinodeLexiconClient(api_key, api_version)
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class _LinodeLexiconClient(dns_common_lexicon.LexiconClient):
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"""
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Encapsulates all communication with the Linode API.
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"""
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def __init__(self, api_key, api_version):
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super(_LinodeLexiconClient, self).__init__()
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self.api_version = api_version
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if api_version == 3:
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config = dns_common_lexicon.build_lexicon_config('linode', {}, {
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'auth_token': api_key,
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})
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self.provider = linode.Provider(config)
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elif api_version == 4:
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config = dns_common_lexicon.build_lexicon_config('linode4', {}, {
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'auth_token': api_key,
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})
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self.provider = linode4.Provider(config)
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else:
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raise errors.PluginError('Invalid api version specified: {0}. (Supported: 3, 4)'
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.format(api_version))
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def _handle_general_error(self, e, domain_name):
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if not str(e).startswith('Domain not found'):
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return errors.PluginError('Unexpected error determining zone identifier for {0}: {1}'
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.format(domain_name, e))
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return None
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