1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
import logging
import os
import platform
from leap.util.fileutil import (which, check_and_fix_urw_only)
from leap.base import config as baseconfig
from leap.baseapp.permcheck import (is_pkexec_in_system,
is_auth_agent_running)
from leap.eip import exceptions as eip_exceptions
from leap.eip import specs as eipspecs
logger = logging.getLogger(name=__name__)
class EIPConfig(baseconfig.JSONLeapConfig):
spec = eipspecs.eipconfig_spec
def _get_slug(self):
return baseconfig.get_config_file('eip.json')
def _set_slug(self, *args, **kwargs):
raise AttributeError("you cannot set slug")
slug = property(_get_slug, _set_slug)
class EIPServiceConfig(baseconfig.JSONLeapConfig):
spec = eipspecs.eipservice_config_spec
def _get_slug(self):
return baseconfig.get_config_file(
'eip-service.json',
folder=baseconfig.get_default_provider_path())
def _set_slug(self):
raise AttributeError("you cannot set slug")
slug = property(_get_slug, _set_slug)
def build_ovpn_options(daemon=False):
"""
build a list of options
to be passed in the
openvpn invocation
@rtype: list
@rparam: options
"""
# XXX review which of the
# options we don't need.
# TODO pass also the config file,
# since we will need to take some
# things from there if present.
# get user/group name
# also from config.
user = baseconfig.get_username()
group = baseconfig.get_groupname()
opts = []
opts.append('--client')
opts.append('--dev')
# XXX same in win?
opts.append('tun')
opts.append('--persist-tun')
opts.append('--persist-key')
# remote
# XXX get remote from eip.json
opts.append('--remote')
opts.append('testprovider.example.org')
opts.append('1194')
opts.append('udp')
opts.append('--tls-client')
opts.append('--remote-cert-tls')
opts.append('server')
# set user and group
opts.append('--user')
opts.append('%s' % user)
opts.append('--group')
opts.append('%s' % group)
opts.append('--management-client-user')
opts.append('%s' % user)
opts.append('--management-signal')
# set default options for management
# interface. unix sockets or telnet interface for win.
# XXX take them from the config object.
ourplatform = platform.system()
if ourplatform in ("Linux", "Mac"):
opts.append('--management')
# XXX get a different sock each time ...
# XXX #505
opts.append('/tmp/.eip.sock')
opts.append('unix')
if ourplatform == "Windows":
opts.append('--management')
opts.append('localhost')
# XXX which is a good choice?
opts.append('7777')
# certs
opts.append('--cert')
opts.append(eipspecs.client_cert_path())
opts.append('--key')
opts.append(eipspecs.client_cert_path())
opts.append('--ca')
opts.append(eipspecs.provider_ca_path())
# we cannot run in daemon mode
# with the current subp setting.
# see: https://leap.se/code/issues/383
#if daemon is True:
#opts.append('--daemon')
return opts
def build_ovpn_command(debug=False, do_pkexec_check=True, vpnbin=None):
"""
build a string with the
complete openvpn invocation
@rtype [string, [list of strings]]
@rparam: a list containing the command string
and a list of options.
"""
command = []
use_pkexec = True
ovpn = None
# XXX get use_pkexec from config instead.
if platform.system() == "Linux" and use_pkexec and do_pkexec_check:
# check for both pkexec
# AND a suitable authentication
# agent running.
logger.info('use_pkexec set to True')
if not is_pkexec_in_system():
logger.error('no pkexec in system')
raise eip_exceptions.EIPNoPkexecAvailable
if not is_auth_agent_running():
logger.warning(
"no polkit auth agent found. "
"pkexec will use its own text "
"based authentication agent. "
"that's probably a bad idea")
raise eip_exceptions.EIPNoPolkitAuthAgentAvailable
command.append('pkexec')
if vpnbin is None:
ovpn = which('openvpn')
else:
ovpn = vpnbin
if ovpn:
vpn_command = ovpn
else:
vpn_command = "openvpn"
command.append(vpn_command)
daemon_mode = not debug
for opt in build_ovpn_options(daemon=daemon_mode):
command.append(opt)
# XXX check len and raise proper error
return [command[0], command[1:]]
def check_vpn_keys():
"""
performs an existance and permission check
over the openvpn keys file.
Currently we're expecting a single file
per provider, containing the CA cert,
the provider key, and our client certificate
"""
provider_ca = eipspecs.provider_ca_path()
client_cert = eipspecs.client_cert_path()
logger.debug('provider ca = %s', provider_ca)
logger.debug('client cert = %s', client_cert)
# if no keys, raise error.
# should be catched by the ui and signal user.
for keyfile in (provider_ca, client_cert):
if not os.path.isfile(keyfile):
logger.error('key file %s not found. aborting.',
keyfile)
raise eip_exceptions.EIPInitNoKeyFileError
# check proper permission on keys
# bad perms? try to fix them
try:
check_and_fix_urw_only(keyfile)
except OSError:
raise eip_exceptions.EIPInitBadKeyFilePermError
|
