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"""DNS Authenticator for Linode."""
import logging
from typing import Any
from typing import Callable
from typing import Optional
from certbot import errors
from certbot.plugins import dns_common_lexicon
logger = logging.getLogger(__name__)
API_KEY_URL_V4 = 'https://cloud.linode.com/profile/tokens'
class Authenticator(dns_common_lexicon.LexiconDNSAuthenticator):
"""DNS Authenticator for Linode
This Authenticator uses the Linode API to fulfill a dns-01 challenge.
"""
description = 'Obtain certificates using a DNS TXT record (if you are using Linode for DNS).'
def __init__(self, *args: Any, **kwargs: Any) -> None:
super().__init__(*args, **kwargs)
self._add_provider_option('key',
'API key for Linode account, '
f'obtained from {API_KEY_URL_V4}',
'auth_token')
@classmethod
def add_parser_arguments(cls, add: Callable[..., None],
default_propagation_seconds: int = 120) -> None:
super().add_parser_arguments(add, default_propagation_seconds)
add('credentials', help='Linode credentials INI file.')
def more_info(self) -> str:
return 'This plugin configures a DNS TXT record to respond to a dns-01 challenge using ' + \
'the Linode API.'
@property
def _provider_name(self) -> str:
if not hasattr(self, '_credentials'): # pragma: no cover
self._setup_credentials()
return 'linode4'
def _setup_credentials(self) -> None:
self._credentials = self._configure_credentials(
key='credentials',
label='Credentials INI file for linode DNS authenticator',
required_variables={item[0]: item[1] for item in self._provider_options},
)
def _handle_general_error(self, e: Exception, domain_name: str) -> Optional[errors.PluginError]:
if not str(e).startswith('Domain not found'):
return errors.PluginError('Unexpected error determining zone identifier '
f'for {domain_name}: {e}')
return None
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