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#!/usr/bin/env python3
#
# Copyright (C) 2019-2020 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
from sys import exit
from copy import deepcopy
from jinja2 import FileSystemLoader, Environment
import vyos.defaults
import vyos.certbot_util
from vyos.config import Config
from vyos.defaults import directories as vyos_data_dir
from vyos import ConfigError
from vyos.util import call
config_file = '/etc/nginx/sites-available/default'
default_server_block = {
'id' : '',
'address' : '*',
'port' : '443',
'name' : ['_'],
'api' : {},
'vyos_cert' : {},
'certbot' : False
}
def get_config():
server_block_list = []
conf = Config()
if not conf.exists('service https'):
return None
else:
conf.set_level('service https')
if not conf.exists('virtual-host'):
server_block_list.append(default_server_block)
else:
for vhost in conf.list_nodes('virtual-host'):
server_block = deepcopy(default_server_block)
server_block['id'] = vhost
if conf.exists(f'virtual-host {vhost} listen-address'):
addr = conf.return_value(f'virtual-host {vhost} listen-address')
server_block['address'] = addr
if conf.exists(f'virtual-host {vhost} listen-port'):
port = conf.return_value(f'virtual-host {vhost} listen-port')
server_block['port'] = port
if conf.exists(f'virtual-host {vhost} server-name'):
names = conf.return_values(f'virtual-host {vhost} server-name')
server_block['name'] = names[:]
server_block_list.append(server_block)
vyos_cert_data = {}
if conf.exists('certificates system-generated-certificate'):
vyos_cert_data = vyos.defaults.vyos_cert_data
if vyos_cert_data:
for block in server_block_list:
block['vyos_cert'] = vyos_cert_data
certbot = False
certbot_domains = []
if conf.exists('certificates certbot domain-name'):
certbot_domains = conf.return_values('certificates certbot domain-name')
if certbot_domains:
certbot = True
for domain in certbot_domains:
sub_list = vyos.certbot_util.choose_server_block(server_block_list,
domain)
if sub_list:
for sb in sub_list:
sb['certbot'] = True
# certbot organizes certificates by first domain
sb['certbot_dir'] = certbot_domains[0]
api_somewhere = False
api_data = {}
if conf.exists('api'):
api_somewhere = True
api_data = vyos.defaults.api_data
if conf.exists('api port'):
port = conf.return_value('api port')
api_data['port'] = port
if conf.exists('api-restrict virtual-host'):
vhosts = conf.return_values('api-restrict virtual-host')
api_data['vhost'] = vhosts[:]
if api_data:
# we do not want to include 'vhost' key as part of
# vyos.defaults.api_data, so check for key existence
vhost_list = api_data.get('vhost')
if vhost_list is None:
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
https = {'server_block_list' : server_block_list,
'api_somewhere': api_somewhere,
'certbot': certbot}
return https
def verify(https):
if https is None:
return None
if https['certbot']:
for sb in https['server_block_list']:
if sb['certbot']:
return None
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
# Prepare Jinja2 template loader from files
tmpl_path = os.path.join(vyos_data_dir['data'], 'templates', 'https')
fs_loader = FileSystemLoader(tmpl_path)
env = Environment(loader=fs_loader, trim_blocks=True)
if 'server_block_list' not in https or not https['server_block_list']:
https['server_block_list'] = [default_server_block]
tmpl = env.get_template('nginx.default.tmpl')
config_text = tmpl.render(https)
with open(config_file, 'w') as f:
f.write(config_text)
return None
def apply(https):
if https is not None:
call('sudo systemctl restart nginx.service')
else:
call('sudo systemctl stop nginx.service')
if __name__ == '__main__':
try:
c = get_config()
verify(c)
generate(c)
apply(c)
except ConfigError as e:
print(e)
exit(1)
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