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#!/usr/bin/env python3
#
# Copyright (C) 2021 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# 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, see <http://www.gnu.org/licenses/>.
# * Migrate system signed certificate to use PKI
import sys
from vyos.configtree import ConfigTree
from vyos.pki import create_certificate
from vyos.pki import create_certificate_request
from vyos.pki import create_private_key
from vyos.pki import encode_certificate
from vyos.pki import encode_private_key
if len(sys.argv) < 2:
print("Must specify file name!")
sys.exit(1)
file_name = sys.argv[1]
with open(file_name, 'r') as f:
config_file = f.read()
config = ConfigTree(config_file)
base = ['service', 'https', 'certificates']
pki_base = ['pki']
if not config.exists(base + ['system-generated-certificate']):
sys.exit(0)
def wrapped_pem_to_config_value(pem):
out = []
for line in pem.strip().split("\n"):
if not line or line.startswith("-----") or line[0] == '#':
continue
out.append(line)
return "".join(out)
if not config.exists(pki_base + ['certificate']):
config.set(pki_base + ['certificate'])
config.set_tag(pki_base + ['certificate'])
valid_days = 365
if config.exists(base + ['system-generated-certificate', 'lifetime']):
valid_days = int(config.return_value(base + ['system-generated-certificate', 'lifetime']))
key = create_private_key('rsa', 2048)
subject = {'country': 'GB', 'state': 'N/A', 'locality': 'N/A', 'organization': 'VyOS', 'common_name': 'vyos'}
cert_req = create_certificate_request(subject, key, ['vyos'])
cert = create_certificate(cert_req, cert_req, key, valid_days)
if cert:
cert_pem = encode_certificate(cert)
config.set(pki_base + ['certificate', 'generated_https', 'certificate'], value=wrapped_pem_to_config_value(cert_pem))
if key:
key_pem = encode_private_key(key)
config.set(pki_base + ['certificate', 'generated_https', 'private', 'key'], value=wrapped_pem_to_config_value(key_pem))
if cert and key:
config.set(base + ['certificate'], value='generated_https')
else:
print('Failed to migrate system-generated-certificate from https service')
config.delete(base + ['system-generated-certificate'])
try:
with open(file_name, 'w') as f:
f.write(config.to_string())
except OSError as e:
print("Failed to save the modified config: {}".format(e))
sys.exit(1)
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