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#!/usr/bin/env python3
#
# Copyright (C) 2022 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 time
from vyos.configquery import ConfigTreeQuery
from vyos.firewall import get_ips_domains_dict
from vyos.firewall import nft_add_set_elements
from vyos.firewall import nft_flush_set
from vyos.firewall import nft_init_set
from vyos.firewall import nft_update_set_elements
from vyos.util import call
base = ['firewall', 'group', 'domain-group']
check_required = True
# count_failed = 0
# Timeout in sec between checks
timeout = 300
domain_state = {}
if __name__ == '__main__':
while check_required:
config = ConfigTreeQuery()
if config.exists(base):
domain_groups = config.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True)
for set_name, domain_config in domain_groups.items():
list_domains = domain_config['address']
elements = []
ip_dict = get_ips_domains_dict(list_domains)
for domain in list_domains:
# Resolution succeeded, update domain state
if domain in ip_dict:
domain_state[domain] = ip_dict[domain]
elements += ip_dict[domain]
# Resolution failed, use previous domain state
elif domain in domain_state:
elements += domain_state[domain]
# Resolve successful
if elements:
nft_update_set_elements(f'D_{set_name}', elements)
time.sleep(timeout)
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