1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
#!/usr/bin/env python3
#
# Copyright (C) 2019-2021 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/>.
import os
import sys
from copy import deepcopy
import vyos.defaults
import vyos.certbot_util
from vyos.config import Config
from vyos import ConfigError
from vyos.pki import wrap_certificate
from vyos.pki import wrap_private_key
from vyos.template import render
from vyos.util import call
from vyos.util import write_file
from vyos import airbag
airbag.enable()
config_file = '/etc/nginx/sites-available/default'
cert_dir = '/etc/ssl/certs'
key_dir = '/etc/ssl/private'
certbot_dir = vyos.defaults.directories['certbot']
# https config needs to coordinate several subsystems: api, certbot,
# self-signed certificate, as well as the virtual hosts defined within the
# https config definition itself. Consequently, one needs a general dict,
# encompassing the https and other configs, and a list of such virtual hosts
# (server blocks in nginx terminology) to pass to the jinja2 template.
default_server_block = {
'id' : '',
'address' : '*',
'port' : '443',
'name' : ['_'],
'api' : {},
'vyos_cert' : {},
'certbot' : False
}
def get_config(config=None):
if config:
conf = config
else:
conf = Config()
if not conf.exists('service https'):
return None
https = conf.get_config_dict('service https', get_first_key=True)
if https:
https['pki'] = conf.get_config_dict(['pki'], key_mangling=('-', '_'),
get_first_key=True, no_tag_node_value_mangle=True)
return https
def verify(https):
if https is None:
return None
if 'certificates' in https:
certificates = https['certificates']
if 'certificate' in certificates:
if not https['pki']:
raise ConfigError("PKI is not configured")
cert_name = certificates['certificate']
if cert_name not in https['pki']['certificate']:
raise ConfigError("Invalid certificate on https configuration")
pki_cert = https['pki']['certificate'][cert_name]
if 'certificate' not in pki_cert:
raise ConfigError("Missing certificate on https configuration")
if 'private' not in pki_cert or 'key' not in pki_cert['private']:
raise ConfigError("Missing certificate private key on https configuration")
if 'certbot' in https['certificates']:
vhost_names = []
for vh, vh_conf in https.get('virtual-host', {}).items():
vhost_names += vh_conf.get('server-name', [])
domains = https['certificates']['certbot'].get('domain-name', [])
domains_found = [domain for domain in domains if domain in vhost_names]
if not domains_found:
raise ConfigError("At least one 'virtual-host <id> server-name' "
"matching the 'certbot domain-name' is required.")
return None
def generate(https):
if https is None:
return None
server_block_list = []
# organize by vhosts
vhost_dict = https.get('virtual-host', {})
if not vhost_dict:
# no specified virtual hosts (server blocks); use default
server_block_list.append(default_server_block)
else:
for vhost in list(vhost_dict):
server_block = deepcopy(default_server_block)
server_block['id'] = vhost
data = vhost_dict.get(vhost, {})
server_block['address'] = data.get('listen-address', '*')
server_block['port'] = data.get('listen-port', '443')
name = data.get('server-name', ['_'])
server_block['name'] = name
server_block_list.append(server_block)
# get certificate data
cert_dict = https.get('certificates', {})
if 'certificate' in cert_dict:
cert_name = cert_dict['certificate']
pki_cert = https['pki']['certificate'][cert_name]
cert_path = os.path.join(cert_dir, f'{cert_name}.pem')
key_path = os.path.join(key_dir, f'{cert_name}.pem')
server_cert = str(wrap_certificate(pki_cert['certificate']))
if 'ca-certificate' in cert_dict:
ca_cert = cert_dict['ca-certificate']
server_cert += '\n' + str(wrap_certificate(https['pki']['ca'][ca_cert]['certificate']))
write_file(cert_path, server_cert)
write_file(key_path, wrap_private_key(pki_cert['private']['key']))
vyos_cert_data = {
'crt': cert_path,
'key': key_path
}
for block in server_block_list:
block['vyos_cert'] = vyos_cert_data
# letsencrypt certificate using certbot
certbot = False
cert_domains = cert_dict.get('certbot', {}).get('domain-name', [])
if cert_domains:
certbot = True
for domain in cert_domains:
sub_list = vyos.certbot_util.choose_server_block(server_block_list,
domain)
if sub_list:
for sb in sub_list:
sb['certbot'] = True
sb['certbot_dir'] = certbot_dir
# certbot organizes certificates by first domain
sb['certbot_domain_dir'] = cert_domains[0]
# get api data
api_set = False
api_data = {}
if 'api' in list(https):
api_set = True
api_data = vyos.defaults.api_data
api_settings = https.get('api', {})
if api_settings:
port = api_settings.get('port', '')
if port:
api_data['port'] = port
vhosts = https.get('api-restrict', {}).get('virtual-host', [])
if vhosts:
api_data['vhost'] = vhosts[:]
if api_data:
vhost_list = api_data.get('vhost', [])
if not vhost_list:
for block in server_block_list:
block['api'] = api_data
else:
for block in server_block_list:
if block['id'] in vhost_list:
block['api'] = api_data
if 'server_block_list' not in https or not https['server_block_list']:
https['server_block_list'] = [default_server_block]
data = {
'server_block_list': server_block_list,
'api_set': api_set,
'certbot': certbot
}
render(config_file, 'https/nginx.default.tmpl', data)
return None
def apply(https):
if https is not None:
call('systemctl restart nginx.service')
else:
call('systemctl stop nginx.service')
if __name__ == '__main__':
try:
c = get_config()
verify(c)
generate(c)
apply(c)
except ConfigError as e:
print(e)
sys.exit(1)
|
