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# Authors:
# Matthew Harmsen <mharmsen@redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Copyright (C) 2016 Red Hat, Inc.
# All rights reserved.
#
from __future__ import absolute_import
from __future__ import print_function
import re
# PKI Deployment Imports
from .. import pkiconfig as config
from .. import pkimessages as log
from .. import pkiscriptlet
import pki.nssdb
import pki.server
# PKI Deployment CSR Generation Scriptlet
class PkiScriptlet(pkiscriptlet.AbstractBasePkiScriptlet):
def spawn(self, deployer):
external = deployer.configuration_file.external
standalone = deployer.configuration_file.standalone
step_one = deployer.configuration_file.external_step_one
skip_configuration = deployer.configuration_file.skip_configuration
if skip_configuration:
config.pki_log.info(log.SKIP_CSR_GENERATION_SPAWN_1, __name__,
extra=config.PKI_INDENTATION_LEVEL_1)
return
instance = pki.server.PKIInstance(deployer.mdict['pki_instance_name'])
instance.load()
subsystem = instance.get_subsystem(deployer.mdict['pki_subsystem'].lower())
token = deployer.mdict['pki_token_name']
nssdb = instance.open_nssdb(token)
try:
if external and step_one: # external CA step 1
# Determine CA signing key type and algorithm
key_type = deployer.mdict['pki_ca_signing_key_type']
key_alg = deployer.mdict['pki_ca_signing_key_algorithm']
if key_type == 'rsa':
key_size = int(deployer.mdict['pki_ca_signing_key_size'])
curve = None
m = re.match(r'(.*)withRSA', key_alg)
if not m:
raise Exception('Invalid key algorithm: %s' % key_alg)
hash_alg = m.group(1)
elif key_type == 'ec' or key_type == 'ecc':
key_type = 'ec'
key_size = None
curve = deployer.mdict['pki_ca_signing_key_size']
m = re.match(r'(.*)withEC', key_alg)
if not m:
raise Exception('Invalid key algorithm: %s' % key_alg)
hash_alg = m.group(1)
else:
raise Exception('Invalid key type: %s' % key_type)
# If filename specified, generate CA cert request and
# import it into CS.cfg.
external_csr_path = deployer.mdict['pki_external_csr_path']
if external_csr_path:
config.pki_log.info(
"generating CA signing certificate request in %s",
external_csr_path,
extra=config.PKI_INDENTATION_LEVEL_2)
nssdb.create_request(
subject_dn=deployer.mdict['pki_ca_signing_subject_dn'],
request_file=external_csr_path,
key_type=key_type,
key_size=key_size,
curve=curve,
hash_alg=hash_alg)
with open(external_csr_path) as f:
signing_csr = f.read()
signing_csr = pki.nssdb.convert_csr(signing_csr, 'pem', 'base64')
subsystem.config['ca.signing.certreq'] = signing_csr
# This is needed by IPA to detect step 1 completion.
# See is_step_one_done() in ipaserver/install/cainstance.py.
subsystem.config['preop.ca.type'] = 'otherca'
subsystem.save()
# verify the signing certificate
# raises exception on failure
config.pki_log.info("validating the signing certificate",
extra=config.PKI_INDENTATION_LEVEL_2)
verifier = pkihelper.PKIDeployer.create_system_cert_verifier(
instance, 'ca')
verifier.verify_certificate('signing')
elif standalone and step_one: # standalone step 1
# To be implemented in ticket #1692.
# Generate CSRs for standalone system certs.
else: # self-signed CA
# To be implemented in ticket #1692.
# Generate CSR for self-signed CA cert.
pass
finally:
nssdb.close()
def destroy(self, deployer):
pass
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