community.crypto/plugins/module_utils/crypto/module_backends/crl_info.py

101 lines
3.4 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright: (c) 2020, Felix Fontein <felix@fontein.de>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
import traceback
from distutils.version import LooseVersion
from ansible.module_utils.basic import missing_required_lib
from ansible_collections.community.crypto.plugins.module_utils.crypto.cryptography_support import (
cryptography_oid_to_name,
)
from ansible_collections.community.crypto.plugins.module_utils.crypto.cryptography_crl import (
TIMESTAMP_FORMAT,
cryptography_decode_revoked_certificate,
cryptography_dump_revoked,
cryptography_get_signature_algorithm_oid_from_crl,
)
from ansible_collections.community.crypto.plugins.module_utils.crypto.pem import (
identify_pem_format,
)
# crypto_utils
MINIMAL_CRYPTOGRAPHY_VERSION = '1.2'
CRYPTOGRAPHY_IMP_ERR = None
try:
import cryptography
from cryptography import x509
from cryptography.hazmat.backends import default_backend
CRYPTOGRAPHY_VERSION = LooseVersion(cryptography.__version__)
except ImportError:
CRYPTOGRAPHY_IMP_ERR = traceback.format_exc()
CRYPTOGRAPHY_FOUND = False
else:
CRYPTOGRAPHY_FOUND = True
class CRLInfoRetrieval(object):
def __init__(self, module, content, list_revoked_certificates=True):
# content must be a bytes string
self.module = module
self.content = content
self.list_revoked_certificates = list_revoked_certificates
def get_info(self):
self.crl_pem = identify_pem_format(self.content)
try:
if self.crl_pem:
self.crl = x509.load_pem_x509_crl(self.content, default_backend())
else:
self.crl = x509.load_der_x509_crl(self.content, default_backend())
except ValueError as e:
self.module.fail_json(msg='Error while decoding CRL: {0}'.format(e))
result = {
'changed': False,
'format': 'pem' if self.crl_pem else 'der',
'last_update': None,
'next_update': None,
'digest': None,
'issuer_ordered': None,
'issuer': None,
}
result['last_update'] = self.crl.last_update.strftime(TIMESTAMP_FORMAT)
result['next_update'] = self.crl.next_update.strftime(TIMESTAMP_FORMAT)
result['digest'] = cryptography_oid_to_name(cryptography_get_signature_algorithm_oid_from_crl(self.crl))
issuer = []
for attribute in self.crl.issuer:
issuer.append([cryptography_oid_to_name(attribute.oid), attribute.value])
result['issuer_ordered'] = issuer
result['issuer'] = {}
for k, v in issuer:
result['issuer'][k] = v
if self.list_revoked_certificates:
result['revoked_certificates'] = []
for cert in self.crl:
entry = cryptography_decode_revoked_certificate(cert)
result['revoked_certificates'].append(cryptography_dump_revoked(entry))
return result
def get_crl_info(module, content, list_revoked_certificates=True):
if not CRYPTOGRAPHY_FOUND:
module.fail_json(msg=missing_required_lib('cryptography >= {0}'.format(MINIMAL_CRYPTOGRAPHY_VERSION)),
exception=CRYPTOGRAPHY_IMP_ERR)
info = CRLInfoRetrieval(module, content, list_revoked_certificates=list_revoked_certificates)
return info.get_info()