Initial Version of plugin
This commit is contained in:
Matthias Bilger
220
certbot_dns_ispconfig/dns_ispconfig.py
Normal file
220
certbot_dns_ispconfig/dns_ispconfig.py
Normal file
@@ -0,0 +1,220 @@
|
||||
"""DNS Authenticator for ISPConfig."""
|
||||
import json
|
||||
import logging
|
||||
|
||||
import requests
|
||||
import zope.interface
|
||||
|
||||
from certbot import errors
|
||||
from certbot import interfaces
|
||||
from certbot.plugins import dns_common
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
|
||||
|
||||
@zope.interface.implementer(interfaces.IAuthenticator)
|
||||
@zope.interface.provider(interfaces.IPluginFactory)
|
||||
class Authenticator(dns_common.DNSAuthenticator):
|
||||
"""DNS Authenticator for ISPConfig
|
||||
|
||||
This Authenticator uses the ISPConfig Remote REST API to fulfill a dns-01 challenge.
|
||||
"""
|
||||
|
||||
description = ('Obtain certificates using a DNS TXT record (if you are using ISPConfig 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=120)
|
||||
add('credentials', help='ISPConfig 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 ISPConfig Remote REST API.'
|
||||
|
||||
def _setup_credentials(self):
|
||||
self.credentials = self._configure_credentials(
|
||||
'credentials',
|
||||
'ISPConfig credentials INI file',
|
||||
{
|
||||
'endpoint': 'URL of the ISPConfig Remote API.',
|
||||
'username': 'Username for ISPConfig Remote API.',
|
||||
'password': 'Password for ISPConfig Remote API.'
|
||||
}
|
||||
)
|
||||
|
||||
def _perform(self, domain, validation_name, validation):
|
||||
self._get_ispconfig_client().add_txt_record(domain, validation_name, validation, self.ttl)
|
||||
|
||||
def _cleanup(self, domain, validation_name, validation):
|
||||
self._get_ispconfig_client().del_txt_record(domain, validation_name, validation, self.ttl)
|
||||
|
||||
def _get_ispconfig_client(self):
|
||||
return _ISPConfigClient(self.credentials.conf('endpoint'), self.credentials.conf('username'), self.credentials.conf('password'))
|
||||
|
||||
|
||||
class _ISPConfigClient(object):
|
||||
"""
|
||||
Encapsulates all communication with the ISPConfig Remote REST API.
|
||||
"""
|
||||
|
||||
def __init__(self, endpoint, username, password):
|
||||
self.endpoint = endpoint
|
||||
self.username = username
|
||||
self.password = password
|
||||
self.session = requests.Session()
|
||||
self.session_id = None
|
||||
|
||||
def _login(self):
|
||||
if self.session_id is not None:
|
||||
return
|
||||
logindata = {'username': self.username, 'password':self.password}
|
||||
self.session_id = self._api_request('login', logindata)
|
||||
|
||||
def _api_request(self, action, data):
|
||||
if self.session_id is not None:
|
||||
data['session_id'] = self.session_id
|
||||
resp = self.session.get(
|
||||
self._get_url(action),
|
||||
json=data
|
||||
)
|
||||
if resp.status_code != 200:
|
||||
raise errors.PluginError('HTTP Error during login {0}'.format(resp.status_code))
|
||||
try:
|
||||
result = resp.json()
|
||||
except:
|
||||
raise errors.PluginError('API response with non JSON: {0}'.format(resp.text))
|
||||
if (result['code'] == 'ok'):
|
||||
return result['response']
|
||||
elif (result['code'] == 'remote_fault'):
|
||||
raise errors.PluginError('API response with an error: {0}'.format(result['message']))
|
||||
else:
|
||||
raise errors.PluginError('API response unknown {0}'.format(resp.text))
|
||||
|
||||
def _get_url(self, action):
|
||||
return '{0}?{1}'.format(self.endpoint, action)
|
||||
|
||||
def _get_server_id(self, zone_id):
|
||||
zone = self._api_request('dns_zone_get', {'primary_id': zone_id})
|
||||
return zone['server_id']
|
||||
|
||||
def add_txt_record(self, domain, record_name, record_content, record_ttl):
|
||||
"""
|
||||
Add a TXT record using the supplied information.
|
||||
|
||||
:param str domain: The domain to use to look up the managed zone.
|
||||
:param str record_name: The record name (typically beginning with '_acme-challenge.').
|
||||
:param str record_content: The record content (typically the challenge validation).
|
||||
:param int record_ttl: The record TTL (number of seconds that the record may be cached).
|
||||
:raises certbot.errors.PluginError: if an error occurs communicating with the ISPConfig API
|
||||
"""
|
||||
self._login()
|
||||
zone_id = self._find_managed_zone_id(domain)
|
||||
if zone_id is None:
|
||||
raise errors.PluginError("Domain not known")
|
||||
record = self.get_existing_txt(zone_id, record_name)
|
||||
if record is not None:
|
||||
if record['data'] == record_content:
|
||||
print('already there, id {0}'.format(record['id']))
|
||||
return
|
||||
else:
|
||||
self._update_txt_record(zone_id, record['id'], record_name, record_content, record_ttl)
|
||||
else:
|
||||
self._insert_txt_record(zone_id, record_name, record_content, record_ttl)
|
||||
|
||||
def del_txt_record(self, domain, record_name, record_content, record_ttl):
|
||||
"""
|
||||
Delete a TXT record using the supplied information.
|
||||
|
||||
:param str domain: The domain to use to look up the managed zone.
|
||||
:param str record_name: The record name (typically beginning with '_acme-challenge.').
|
||||
:param str record_content: The record content (typically the challenge validation).
|
||||
:param int record_ttl: The record TTL (number of seconds that the record may be cached).
|
||||
:raises certbot.errors.PluginError: if an error occurs communicating with the ISPConfig API
|
||||
"""
|
||||
self._login()
|
||||
zone_id = self._find_managed_zone_id(domain)
|
||||
if zone_id is None:
|
||||
raise errors.PluginError("Domain not known")
|
||||
record = self.get_existing_txt(zone_id, record_name)
|
||||
if record is not None:
|
||||
if record['data'] == record_content:
|
||||
self._delete_txt_record(record['id'])
|
||||
|
||||
def _prepare_rr_data(self, zone_id, record_name, record_content, record_ttl):
|
||||
server_id = self._get_server_id(zone_id)
|
||||
data = {
|
||||
'client_id': None,
|
||||
'rr_type': 'TXT',
|
||||
'params':{
|
||||
'server_id': server_id,
|
||||
'name': record_name,
|
||||
'active': 'Y',
|
||||
'type': 'TXT',
|
||||
'data': record_content,
|
||||
'zone': zone_id,
|
||||
'ttl': record_ttl,
|
||||
'update_serial':False,
|
||||
},
|
||||
}
|
||||
return data
|
||||
|
||||
def _insert_txt_record(self, zone_id, record_name, record_content, record_ttl):
|
||||
data = self._prepare_rr_data(zone_id, record_name, record_content, record_ttl)
|
||||
result = self._api_request('dns_txt_add', data)
|
||||
|
||||
def _update_txt_record(self, zone_id, primary_id, record_name, record_content, record_ttl):
|
||||
data = self._prepare_rr_data(zone_id, record_name, record_content, record_ttl)
|
||||
data['primary_id'] = primary_id
|
||||
result = self._api_request('dns_txt_update', data)
|
||||
|
||||
def _delete_txt_record(self, primary_id):
|
||||
data = { 'primary_id': primary_id }
|
||||
result = self._api_request('dns_txt_delete', data)
|
||||
|
||||
def _find_managed_zone_id(self, domain):
|
||||
"""
|
||||
Find the managed zone for a given domain.
|
||||
|
||||
:param str domain: The domain for which to find the managed zone.
|
||||
:returns: The ID of the managed zone, if found.
|
||||
:rtype: str
|
||||
:raises certbot.errors.PluginError: if the managed zone cannot be found.
|
||||
"""
|
||||
|
||||
zone_dns_name_guesses = dns_common.base_domain_name_guesses(domain)
|
||||
|
||||
for zone_name in zone_dns_name_guesses:
|
||||
#get the zone id
|
||||
try:
|
||||
zone_id = self._api_request('dns_zone_get_id', {'origin': zone_name})
|
||||
return zone_id
|
||||
except errors.PluginError as e:
|
||||
pass
|
||||
return None
|
||||
|
||||
def get_existing_txt(self, zone_id, record_name):
|
||||
"""
|
||||
Get existing TXT records from the RRset for the record name.
|
||||
|
||||
If an error occurs while requesting the record set, it is suppressed
|
||||
and None is returned.
|
||||
|
||||
:param str zone_id: The ID of the managed zone.
|
||||
:param str record_name: The record name (typically beginning with '_acme-challenge.').
|
||||
|
||||
:returns: TXT record value or None
|
||||
:rtype: `string` or `None`
|
||||
|
||||
"""
|
||||
self._login()
|
||||
read_zone_data = {'zone_id': zone_id}
|
||||
zone_data = self._api_request('dns_rr_get_all_by_zone', read_zone_data)
|
||||
for entry in zone_data:
|
||||
if entry['name'] == record_name and entry['type'] == 'TXT':
|
||||
return entry
|
||||
return None
|
||||
Reference in New Issue
Block a user