class VpnController(object):
""" Contains methods to check the vpn status, start and stop the vpn. """
vpn_service = System.get_vpn_service()
start_cmd = "systemctl start " + vpn_service + " > /dev/null"
stop_cmd = "systemctl stop " + vpn_service + " > /dev/null"
check_cmd = "systemctl is-active " + vpn_service + " > /dev/null"
def __init__(self):
self.vpn_connected = False
t_vpn_connected = Thread(target=self._vpn_connected)
t_vpn_connected.daemon = True
t_vpn_connected.start()
@staticmethod
def start_vpn():
""" Start openvpn """
logger.info('Starting VPN')
return subprocess.call(VpnController.start_cmd, shell=True) == 0
@staticmethod
def stop_vpn():
""" Stop openvpn """
logger.info('Stopping VPN')
return subprocess.call(VpnController.stop_cmd, shell=True) == 0
@staticmethod
def check_vpn():
""" Check if openvpn is running """
return subprocess.call(VpnController.check_cmd, shell=True) == 0
def _vpn_connected(self):
""" Checks if the VPN tunnel is connected """
while True:
try:
routes = subprocess.check_output(
'ip r | grep tun | grep via || true', shell=True).strip()
# example output:
# 10.0.0.0/24 via 10.37.0.5 dev tun0\n
# 10.37.0.1 via 10.37.0.5 dev tun0
result = False
if routes:
vpn_servers = [
route.split(' ')[0] for route in routes.split('\n')
if '/' not in route
]
for vpn_server in vpn_servers:
if VPNService.ping(vpn_server, verbose=False):
result = True
break
self.vpn_connected = result
except Exception as ex:
logger.info(
'Exception occured during vpn connectivity test: {0}'.
format(ex))
self.vpn_connected = False
time.sleep(5)
class VpnController(object):
""" Contains methods to check the vpn status, start and stop the vpn. """
vpn_service = System.get_vpn_service()
start_cmd = "systemctl start " + vpn_service + " > /dev/null"
stop_cmd = "systemctl stop " + vpn_service + " > /dev/null"
check_cmd = "systemctl is-active " + vpn_service + " > /dev/null"
def __init__(self):
pass
@staticmethod
def start_vpn():
""" Start openvpn """
return subprocess.call(VpnController.start_cmd, shell=True) == 0
@staticmethod
def stop_vpn():
""" Stop openvpn """
return subprocess.call(VpnController.stop_cmd, shell=True) == 0
@staticmethod
def check_vpn():
""" Check if openvpn is running """
return subprocess.call(VpnController.check_cmd, shell=True) == 0
@staticmethod
def vpn_connected():
""" Checks if the VPN tunnel is connected """
try:
route = subprocess.check_output('ip r | grep tun | grep via || true', shell=True).strip()
if not route:
return False
vpn_server = route.split(' ')[0]
return ping(vpn_server)
except Exception as ex:
LOGGER.log('Exception occured during vpn connectivity test: {0}'.format(ex))
return False
class VpnController(object):
""" Contains methods to check the vpn status, start and stop the vpn. """
if System.get_operating_system().get('ID') == System.OS.BUILDROOT:
vpn_binary = 'openvpn'
config_location = '/etc/openvpn/client/'
start_cmd = 'cd {} ; {} --suppress-timestamps --nobind --config vpn.conf > /dev/null'.format(
config_location, vpn_binary)
stop_cmd = 'killall {} > /dev/null'.format(vpn_binary)
check_cmd = 'ps -a | grep {} | grep -v "grep" > /dev/null'.format(
vpn_binary)
else:
vpn_service = System.get_vpn_service()
start_cmd = 'systemctl start {0} > /dev/null'.format(vpn_service)
stop_cmd = 'systemctl stop {0} > /dev/null'.format(vpn_service)
check_cmd = 'systemctl is-active {0} > /dev/null'.format(vpn_service)
def __init__(self):
self.vpn_connected = False
self._vpn_tester = DaemonThread(name='vpnctl',
target=self._vpn_connected,
interval=5)
def start(self):
self._vpn_tester.start()
@staticmethod
def start_vpn():
""" Start openvpn """
logger.info('Starting VPN')
return subprocess.call(VpnController.start_cmd, shell=True) == 0
@staticmethod
def stop_vpn():
""" Stop openvpn """
logger.info('Stopping VPN')
return subprocess.call(VpnController.stop_cmd, shell=True) == 0
@staticmethod
def check_vpn():
""" Check if openvpn is running """
return subprocess.call(VpnController.check_cmd, shell=True) == 0
def _vpn_connected(self):
""" Checks if the VPN tunnel is connected """
try:
routes = subprocess.check_output(
'ip r | grep tun | grep via || true', shell=True).strip()
# example output:
# 10.0.0.0/24 via 10.37.0.5 dev tun0\n
# 10.37.0.1 via 10.37.0.5 dev tun0
result = False
if routes:
if not isinstance(
routes, str): # to ensure python 2 and 3 compatibility
routes = routes.decode()
vpn_servers = [
route.split(' ')[0] for route in routes.split('\n')
if '/' not in route
]
for vpn_server in vpn_servers:
if TaskExecutor._ping(vpn_server, verbose=False):
result = True
break
self.vpn_connected = result
except Exception as ex:
logger.info(
'Exception occured during vpn connectivity test: {0}'.format(
ex))
self.vpn_connected = False
