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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 sys
import json
from tabulate import tabulate
from vyos.configquery import ConfigTreeQuery
from vyos.utils.process import rc_cmd
import vyos.opmode
occtl = '/usr/bin/occtl'
occtl_socket = '/run/ocserv/occtl.socket'
def _get_raw_data_sessions():
rc, out = rc_cmd(f'sudo {occtl} --json --socket-file {occtl_socket} show users')
if rc != 0:
raise vyos.opmode.DataUnavailable(out)
sessions = json.loads(out)
return sessions
def _get_formatted_sessions(data):
headers = ["Interface", "Username", "IP", "Remote IP", "RX", "TX", "State", "Uptime"]
ses_list = []
for ses in data:
ses_list.append([
ses.get("Device", '(none)'), ses.get("Username", '(none)'),
ses.get("IPv4", '(none)'), ses.get("Remote IP", '(none)'),
ses.get("_RX", '(none)'), ses.get("_TX", '(none)'),
ses.get("State", '(none)'), ses.get("_Connected at", '(none)')
])
if len(ses_list) > 0:
output = tabulate(ses_list, headers)
else:
output = 'No active openconnect sessions'
return output
def show_sessions(raw: bool):
config = ConfigTreeQuery()
if not config.exists('vpn openconnect'):
raise vyos.opmode.UnconfiguredSubsystem('Openconnect is not configured')
openconnect_data = _get_raw_data_sessions()
if raw:
return openconnect_data
return _get_formatted_sessions(openconnect_data)
if __name__ == '__main__':
try:
res = vyos.opmode.run(sys.modules[__name__])
if res:
print(res)
except (ValueError, vyos.opmode.Error) as e:
print(e)
sys.exit(1)
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