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#!/usr/bin/env python3
#
# Copyright (C) 2019 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 sys
import os
import jinja2
import vyos.defaults
import vyos.certbot_util
from vyos.config import Config
from vyos import ConfigError
config_file = '/etc/nginx/sites-available/default'
# Please be careful if you edit the template.
config_tmpl = """
### Autogenerated by https.py ###
# Default server configuration
#
server {
listen 80 default_server;
listen [::]:80 default_server;
server_name _;
return 301 https://$server_name$request_uri;
}
{% for server in server_block_list %}
server {
# SSL configuration
#
{% if server.address == '*' %}
listen 443 ssl;
listen [::]:443 ssl;
{% else %}
listen {{ server.address }}:{{ server.port }} ssl;
{% endif %}
{% for name in server.name %}
server_name {{ name }};
{% endfor %}
{% if server.certbot %}
ssl_certificate /etc/letsencrypt/live/{{ server.certbot_dir }}/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/{{ server.certbot_dir }}/privkey.pem;
include /etc/letsencrypt/options-ssl-nginx.conf;
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
{% elif server.vyos_cert %}
include {{ server.vyos_cert.conf }};
{% else %}
#
# Self signed certs generated by the ssl-cert package
# Don't use them in a production server!
#
include snippets/snakeoil.conf;
{% endif %}
# proxy settings for HTTP API, if enabled; 503, if not
location ~ /(retrieve|configure|config-file|image) {
{% if server.api %}
proxy_pass http://localhost:{{ server.api.port }};
proxy_buffering off;
{% else %}
return 503;
{% endif %}
}
error_page 501 502 503 =200 @50*_json;
location @50*_json {
default_type application/json;
return 200 '{"error": "Start service in configuration mode: set service https api"}';
}
}
{% endfor %}
"""
default_server_block = {
'address' : '*',
'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 conf.exists('listen-address'):
for addr in conf.list_nodes('listen-address'):
server_block = {'address' : addr}
server_block['port'] = '443'
server_block['name'] = ['_']
if conf.exists('listen-address {0} listen-port'.format(addr)):
port = conf.return_value('listen-address {0} listen-port'.format(addr))
server_block['port'] = port
if conf.exists('listen-address {0} server-name'.format(addr)):
names = conf.return_values('listen-address {0} server-name'.format(addr))
server_block['name'] = names[:]
server_block_list.append(server_block)
if not server_block_list:
server_block_list.append(default_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_data = {}
if conf.exists('api'):
api_data = vyos.defaults.api_data
if conf.exists('api port'):
port = conf.return_value('api port')
api_data['port'] = port
if api_data:
for block in server_block_list:
block['api'] = api_data
https = {'server_block_list' : server_block_list, '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 'listen-address x.x.x.x server-name' "
"matching the 'certbot domain-name' is required.")
return None
def generate(https):
if https is None:
return None
if 'server_block_list' not in https or not https['server_block_list']:
https['server_block_list'] = [default_server_block]
tmpl = jinja2.Template(config_tmpl, trim_blocks=True)
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:
os.system('sudo systemctl restart nginx.service')
else:
os.system('sudo 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)
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