lemur/lemur/plugins/lemur_adcs/plugin.py

121 lines
5.0 KiB
Python

from lemur.plugins.bases import IssuerPlugin, SourcePlugin
import requests
import datetime
import lemur_adcs as ADCS
from certsrv import Certsrv
import ssl
from OpenSSL import crypto
from flask import current_app
class ADCSIssuerPlugin(IssuerPlugin):
title = 'ADCS'
slug = 'adcs-issuer'
description = 'Enables the creation of certificates by ADCS (Active Direcory Certificate Services)'
version = ADCS.VERSION
author = 'sirferl'
author_url = 'https://github.com/sirferl/lemur'
def __init__(self, *args, **kwargs):
"""Initialize the issuer with the appropriate details."""
self.session = requests.Session()
super(ADCSIssuerPlugin, self).__init__(*args, **kwargs)
@staticmethod
def create_authority(options):
"""Create an authority.
Creates an authority, this authority is then used by Lemur to
allow a user to specify which Certificate Authority they want
to sign their certificate.
:param options:
:return:
"""
role = {'username': '', 'password': '', 'name': 'adcs'}
return constants.ADCS_ROOT, constants.ADCS_ISSUING, [role]
def create_certificate(self, csr, issuer_options):
adcs_server = current_app.config.get('ADCS_SERVER')
adcs_user = current_app.config.get('ADCS_USER')
adcs_pwd = current_app.config.get('ADCS_PWD')
adcs_auth_method = current_app.config.get('ADCS_AUTH_METHOD')
ca_server = Certsrv(adcs_server, adcs_user, adcs_pwd, auth_method = adcs_auth_method)
current_app.logger.info("Requesting CSR: {0}".format(csr))
current_app.logger.info("Issuer options: {0}".format(issuer_options))
cert, req_id = ca_server.get_cert(csr, ADCS_TEMPLATE, encoding='b64').decode('utf-8').replace('\r\n', '\n')
chain = ca_server.get_ca_cert(encoding='b64').decode('utf-8').replace('\r\n', '\n')
return cert, chain, req_id
def revoke_certificate(self, certificate, comments):
# requests.put('a third party')
raise NotImplementedError('Not implemented\n', self,certificate, comments)
def get_ordered_certificate(self, order_id):
# requests.get('already existing certificate')
raise NotImplementedError('Not implemented\n',self, order_id)
def canceled_ordered_certificate(self, pending_cert, **kwargs):
# requests.put('cancel an order that has yet to be issued')
raise NotImplementedError('Not implemented\n',self, pending_cert, **kwargs)
class ADCSSourcePlugin(SourcePlugin):
title = 'ADCS'
slug = 'adcs-source'
description = 'Enables the collecion of certificates'
version = ADCS.VERSION
author = 'sirferl'
author_url = 'https://github.com/sirferl/lemur'
options = [
{
'name': 'dummy',
'type': 'str',
'required': False,
'validation': '/^[0-9]{12,12}$/',
'helpMessage': 'Just to prevent error'
}
]
def get_certificates(self,options, **kwargs):
adcs_server = current_app.config.get('ADCS_SERVER')
adcs_user = current_app.config.get('ADCS_USER')
adcs_pwd = current_app.config.get('ADCS_PWD')
adcs_auth_method = current_app.config.get('ADCS_AUTH_METHOD')
adcs_start = current_app.config.get('ADCS_START')
adcs_stop = current_app.config.get('ADCS_STOP')
ca_server = Certsrv(adcs_server, adcs_user, adcs_pwd, auth_method = adcs_auth_method)
out_certlist = []
for id in range(adcs_start,adcs_stop):
try:
cert = ca_server.get_existing_cert(id, encoding='b64').decode('utf-8').replace('\r\n', '\n')
except Exception as err:
if '{0}'.format(err).find("CERTSRV_E_PROPERTY_EMPTY"):
#this error indicates end of certificate list(?), so we stop
break
else:
# We do nothing in case there is no certificate returned with the current id for other reasons
current_app.logger.info("Error with id {0}: {1}".format(id, err))
else:
#we have a certificate
pubkey = crypto.load_certificate(crypto.FILETYPE_PEM, cert)
#loop through extensions to see if we find "TLS Web Server Authentication"
for e_id in range(0,pubkey.get_extension_count()-1):
try:
extension = '{0}'.format(pubkey.get_extension(e_id))
except:
extensionn = ''
if extension.find("TLS Web Server Authentication") != -1:
out_certlist.append ( {
'name': format(pubkey.get_subject().CN),
'body' : cert})
break
return out_certlist
def get_endpoints(self, options, **kwargs):
# There are no endpoints in the ADCS
raise NotImplementedError('Not implemented\n',self, options, **kwargs)