diff options
Diffstat (limited to 'certbot-dns-luadns/certbot_dns_luadns/_internal/dns_luadns.py')
-rw-r--r-- | certbot-dns-luadns/certbot_dns_luadns/_internal/dns_luadns.py | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/certbot-dns-luadns/certbot_dns_luadns/_internal/dns_luadns.py b/certbot-dns-luadns/certbot_dns_luadns/_internal/dns_luadns.py new file mode 100644 index 000000000..7c18c7131 --- /dev/null +++ b/certbot-dns-luadns/certbot_dns_luadns/_internal/dns_luadns.py @@ -0,0 +1,86 @@ +"""DNS Authenticator for LuaDNS DNS.""" +import logging + +from lexicon.providers import luadns +import zope.interface + +from certbot import errors +from certbot import interfaces +from certbot.plugins import dns_common +from certbot.plugins import dns_common_lexicon + +logger = logging.getLogger(__name__) + +ACCOUNT_URL = 'https://api.luadns.com/settings' + + +@zope.interface.implementer(interfaces.IAuthenticator) +@zope.interface.provider(interfaces.IPluginFactory) +class Authenticator(dns_common.DNSAuthenticator): + """DNS Authenticator for LuaDNS + + This Authenticator uses the LuaDNS API to fulfill a dns-01 challenge. + """ + + description = 'Obtain certificates using a DNS TXT record (if you are using LuaDNS for DNS).' + ttl = 60 + + def __init__(self, *args, **kwargs): + super(Authenticator, self).__init__(*args, **kwargs) + self.credentials = None + + @classmethod + def add_parser_arguments(cls, add): # pylint: disable=arguments-differ + super(Authenticator, cls).add_parser_arguments(add, default_propagation_seconds=30) + add('credentials', help='LuaDNS credentials INI file.') + + def more_info(self): # pylint: disable=missing-docstring,no-self-use + return 'This plugin configures a DNS TXT record to respond to a dns-01 challenge using ' + \ + 'the LuaDNS API.' + + def _setup_credentials(self): + self.credentials = self._configure_credentials( + 'credentials', + 'LuaDNS credentials INI file', + { + 'email': 'email address associated with LuaDNS account', + 'token': 'API token for LuaDNS account, obtained from {0}'.format(ACCOUNT_URL) + } + ) + + def _perform(self, domain, validation_name, validation): + self._get_luadns_client().add_txt_record(domain, validation_name, validation) + + def _cleanup(self, domain, validation_name, validation): + self._get_luadns_client().del_txt_record(domain, validation_name, validation) + + def _get_luadns_client(self): + return _LuaDNSLexiconClient(self.credentials.conf('email'), + self.credentials.conf('token'), + self.ttl) + + +class _LuaDNSLexiconClient(dns_common_lexicon.LexiconClient): + """ + Encapsulates all communication with the LuaDNS via Lexicon. + """ + + def __init__(self, email, token, ttl): + super(_LuaDNSLexiconClient, self).__init__() + + config = dns_common_lexicon.build_lexicon_config('luadns', { + 'ttl': ttl, + }, { + 'auth_username': email, + 'auth_token': token, + }) + + self.provider = luadns.Provider(config) + + def _handle_http_error(self, e, domain_name): + hint = None + if str(e).startswith('401 Client Error: Unauthorized for url:'): + hint = 'Are your email and API token values correct?' + + return errors.PluginError('Error determining zone identifier for {0}: {1}.{2}' + .format(domain_name, e, ' ({0})'.format(hint) if hint else '')) |