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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# service.py
# Copyright (C) 2015-2017 LEAP
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# 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/>.
"""
VPN service declaration.
"""
import os
from twisted.internet import defer
from leap.bitmask.hooks import HookableService
from leap.bitmask.vpn.vpn import VPNManager
from leap.bitmask.vpn._checks import is_service_ready, get_vpn_cert_path
from leap.bitmask.vpn._config import get_bitmask_helper_path
from leap.bitmask.vpn._config import get_bitmask_polkit_policy_path
from leap.bitmask.vpn import privilege
from leap.common.config import get_path_prefix
from leap.common.files import check_and_fix_urw_only
class VPNService(HookableService):
name = 'vpn'
def __init__(self, basepath=None):
"""
Initialize VPN service
"""
super(VPNService, self).__init__()
self._started = False
self._vpn = None
self._domain = ''
if basepath is None:
self._basepath = get_path_prefix()
else:
self._basepath = basepath
def startService(self):
print "Starting VPN Service..."
# TODO this could trigger a check for validity of the certificates,
# etc.
super(VPNService, self).startService()
def stopService(self):
print "Stopping VPN Service..."
super(VPNService, self).stopService()
def start_vpn(self, domain):
# TODO check if the VPN is started and return an error if it is.
self._setup(domain)
self._vpn.start()
self._started = True
self._domain = domain
return {'result': 'started'}
def stop_vpn(self):
if self._started:
self._vpn.stop()
self._started = False
return {'result': 'stopped'}
def do_status(self):
if self._vpn:
status = self._vpn.get_status()
else:
status = {'VPN': 'OFF'}
status['domain'] = self._domain
return status
def do_check(self):
"""Check whether the VPN Service is properly configured,
and can be started"""
# TODO either pass a provider, or set a given provider
_ready = is_service_ready('demo.bitmask.net')
if _ready:
result = 'ok'
else:
result = 'no'
return {'vpn_ready': result}
@defer.inlineCallbacks
def do_get_cert(self, provider):
# fetch vpn cert and store
bonafide = self.parent.getServiceNamed("bonafide")
_, cert_str = yield bonafide.do_get_vpn_cert()
cert_path = get_vpn_cert_path(provider)
cert_dir = os.path.dirname(cert_path)
if not os.path.exists(cert_dir):
os.makedirs(cert_dir, mode=0700)
with open(cert_path, 'w') as outf:
outf.write(cert_str)
check_and_fix_urw_only(cert_path)
defer.returnValue({'get_cert': 'ok'})
def do_install(self):
ask = privilege.install_helpers()
return {'install': 'ok'}
def do_uninstall(self):
ask = privilege.uninstall_helpers()
return {'uninstall': 'ok'}
def _setup(self, provider):
"""Set up VPNManager for a specified provider.
:param provider: the provider to use, e.g. 'demo.bitmask.net'
:type provider: str"""
# FIXME ---------------------------------------------------------
# XXX picked manually from eip-service.json
remotes = (
("198.252.153.84", "1194"),
("46.165.242.169", "1194"),
)
prefix = os.path.join(self._basepath,
"leap/providers/{0}/keys".format(provider))
cert_path = key_path = prefix + "/client/openvpn.pem"
ca_path = prefix + "/ca/cacert.pem"
# FIXME
# XXX picked manually from vpn-service.json
extra_flags = {
"auth": "SHA1",
"cipher": "AES-128-CBC",
"keepalive": "10 30",
"tls-cipher": "DHE-RSA-AES128-SHA",
}
self._vpn = VPNManager(remotes, cert_path, key_path, ca_path,
extra_flags)
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