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- Committer: Teddy Hogeborn
- Date: 2015-08-10 08:25:01 UTC
- mto: (237.7.594 trunk)
- mto: This revision was merged to the branch mainline in revision 325.
- Revision ID: teddy@recompile.se-20150810082501-rb7w2dre1flqiqe2
Refactor D-Bus annotation class out from D-Bus properties class.
* mandos (DBusObjectWithAnnotations): New; factored out D-Bus
annotations code from
DBusObjectWithProperties class.
(DBusObjectWithProperties): Inherit from DBusObjectWithAnnotations.
(main/MandosDBusService): - '' -
(main/MandosDBusService._foo): Removed interface annotation for
"o.f.D.Property.EmitsChangedSignal";
this object has no properties.
* mandos (DBusObjectWithAnnotations): New; factored out D-Bus
annotations code from
DBusObjectWithProperties class.
(DBusObjectWithProperties): Inherit from DBusObjectWithAnnotations.
(main/MandosDBusService): - '' -
(main/MandosDBusService._foo): Removed interface annotation for
"o.f.D.Property.EmitsChangedSignal";
this object has no properties.
- files added:
- debian/mandos-client.examples
- debian/upstream
- network-hooks.d
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python
1
#!/usr/bin/python2.7
2
2
# -*- mode: python; coding: utf-8 -*-
3
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008-2010 Teddy Hogeborn
15
# Copyright © 2008-2010 Björn Påhlsson
14
# Copyright © 2008-2015 Teddy Hogeborn
15
# Copyright © 2008-2015 Björn Påhlsson
16
16
#
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
28
28
# along with this program. If not, see
29
29
# <http://www.gnu.org/licenses/>.
30
30
#
31
# Contact the authors at <mandos@fukt.bsnet.se>.
31
# Contact the authors at <mandos@recompile.se>.
32
32
#
33
33
34
from __future__ import division, with_statement, absolute_import
35
36
import SocketServer as socketserver
34
from __future__ import (division, absolute_import, print_function,
35
unicode_literals)
36
37
from future_builtins import *
38
39
try:
40
import SocketServer as socketserver
41
except ImportError:
42
import socketserver
37
43
import socket
38
import optparse
44
import argparse
39
45
import datetime
40
46
import errno
41
47
import gnutls.crypto
44
50
import gnutls.library.functions
45
51
import gnutls.library.constants
46
52
import gnutls.library.types
47
import ConfigParser as configparser
53
try:
54
import ConfigParser as configparser
55
except ImportError:
56
import configparser
48
57
import sys
49
58
import re
50
59
import os
59
68
import struct
60
69
import fcntl
61
70
import functools
62
import cPickle as pickle
71
try:
72
import cPickle as pickle
73
except ImportError:
74
import pickle
63
75
import multiprocessing
76
import types
77
import binascii
78
import tempfile
79
import itertools
80
import collections
81
import codecs
64
82
65
83
import dbus
66
84
import dbus.service
67
import gobject
85
try:
86
import gobject
87
except ImportError:
88
from gi.repository import GObject as gobject
68
89
import avahi
69
90
from dbus.mainloop.glib import DBusGMainLoop
70
91
import ctypes
80
101
except ImportError:
81
102
SO_BINDTODEVICE = None
82
103
83
84
version = "1.2.3"
85
86
#logger = logging.getLogger(u'mandos')
87
logger = logging.Logger(u'mandos')
88
syslogger = (logging.handlers.SysLogHandler
89
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
90
address = "/dev/log"))
91
syslogger.setFormatter(logging.Formatter
92
(u'Mandos [%(process)d]: %(levelname)s:'
93
u' %(message)s'))
94
logger.addHandler(syslogger)
95
96
console = logging.StreamHandler()
97
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
98
u' %(levelname)s:'
99
u' %(message)s'))
100
logger.addHandler(console)
104
if sys.version_info.major == 2:
105
str = unicode
106
107
version = "1.6.9"
108
stored_state_file = "clients.pickle"
109
110
logger = logging.getLogger()
111
syslogger = None
112
113
try:
114
if_nametoindex = ctypes.cdll.LoadLibrary(
115
ctypes.util.find_library("c")).if_nametoindex
116
except (OSError, AttributeError):
117
118
def if_nametoindex(interface):
119
"Get an interface index the hard way, i.e. using fcntl()"
120
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
121
with contextlib.closing(socket.socket()) as s:
122
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
123
struct.pack(b"16s16x", interface))
124
interface_index = struct.unpack("I", ifreq[16:20])[0]
125
return interface_index
126
127
128
def initlogger(debug, level=logging.WARNING):
129
"""init logger and add loglevel"""
130
131
global syslogger
132
syslogger = (logging.handlers.SysLogHandler(
133
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
134
address = "/dev/log"))
135
syslogger.setFormatter(logging.Formatter
136
('Mandos [%(process)d]: %(levelname)s:'
137
' %(message)s'))
138
logger.addHandler(syslogger)
139
140
if debug:
141
console = logging.StreamHandler()
142
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
143
' [%(process)d]:'
144
' %(levelname)s:'
145
' %(message)s'))
146
logger.addHandler(console)
147
logger.setLevel(level)
148
149
150
class PGPError(Exception):
151
"""Exception if encryption/decryption fails"""
152
pass
153
154
155
class PGPEngine(object):
156
"""A simple class for OpenPGP symmetric encryption & decryption"""
157
158
def __init__(self):
159
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
160
self.gnupgargs = ['--batch',
161
'--home', self.tempdir,
162
'--force-mdc',
163
'--quiet',
164
'--no-use-agent']
165
166
def __enter__(self):
167
return self
168
169
def __exit__(self, exc_type, exc_value, traceback):
170
self._cleanup()
171
return False
172
173
def __del__(self):
174
self._cleanup()
175
176
def _cleanup(self):
177
if self.tempdir is not None:
178
# Delete contents of tempdir
179
for root, dirs, files in os.walk(self.tempdir,
180
topdown = False):
181
for filename in files:
182
os.remove(os.path.join(root, filename))
183
for dirname in dirs:
184
os.rmdir(os.path.join(root, dirname))
185
# Remove tempdir
186
os.rmdir(self.tempdir)
187
self.tempdir = None
188
189
def password_encode(self, password):
190
# Passphrase can not be empty and can not contain newlines or
191
# NUL bytes. So we prefix it and hex encode it.
192
encoded = b"mandos" + binascii.hexlify(password)
193
if len(encoded) > 2048:
194
# GnuPG can't handle long passwords, so encode differently
195
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
196
.replace(b"\n", b"\\n")
197
.replace(b"\0", b"\\x00"))
198
return encoded
199
200
def encrypt(self, data, password):
201
passphrase = self.password_encode(password)
202
with tempfile.NamedTemporaryFile(
203
dir=self.tempdir) as passfile:
204
passfile.write(passphrase)
205
passfile.flush()
206
proc = subprocess.Popen(['gpg', '--symmetric',
207
'--passphrase-file',
208
passfile.name]
209
+ self.gnupgargs,
210
stdin = subprocess.PIPE,
211
stdout = subprocess.PIPE,
212
stderr = subprocess.PIPE)
213
ciphertext, err = proc.communicate(input = data)
214
if proc.returncode != 0:
215
raise PGPError(err)
216
return ciphertext
217
218
def decrypt(self, data, password):
219
passphrase = self.password_encode(password)
220
with tempfile.NamedTemporaryFile(
221
dir = self.tempdir) as passfile:
222
passfile.write(passphrase)
223
passfile.flush()
224
proc = subprocess.Popen(['gpg', '--decrypt',
225
'--passphrase-file',
226
passfile.name]
227
+ self.gnupgargs,
228
stdin = subprocess.PIPE,
229
stdout = subprocess.PIPE,
230
stderr = subprocess.PIPE)
231
decrypted_plaintext, err = proc.communicate(input = data)
232
if proc.returncode != 0:
233
raise PGPError(err)
234
return decrypted_plaintext
235
101
236
102
237
class AvahiError(Exception):
103
238
def __init__(self, value, *args, **kwargs):
104
239
self.value = value
105
super(AvahiError, self).__init__(value, *args, **kwargs)
106
def __unicode__(self):
107
return unicode(repr(self.value))
240
return super(AvahiError, self).__init__(value, *args,
241
**kwargs)
242
108
243
109
244
class AvahiServiceError(AvahiError):
110
245
pass
111
246
247
112
248
class AvahiGroupError(AvahiError):
113
249
pass
114
250
119
255
Attributes:
120
256
interface: integer; avahi.IF_UNSPEC or an interface index.
121
257
Used to optionally bind to the specified interface.
122
name: string; Example: u'Mandos'
123
type: string; Example: u'_mandos._tcp'.
124
See <http://www.dns-sd.org/ServiceTypes.html>
258
name: string; Example: 'Mandos'
259
type: string; Example: '_mandos._tcp'.
260
See <https://www.iana.org/assignments/service-names-port-numbers>
125
261
port: integer; what port to announce
126
262
TXT: list of strings; TXT record for the service
127
263
domain: string; Domain to publish on, default to .local if empty.
133
269
server: D-Bus Server
134
270
bus: dbus.SystemBus()
135
271
"""
136
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
137
servicetype = None, port = None, TXT = None,
138
domain = u"", host = u"", max_renames = 32768,
139
protocol = avahi.PROTO_UNSPEC, bus = None):
272
273
def __init__(self,
274
interface = avahi.IF_UNSPEC,
275
name = None,
276
servicetype = None,
277
port = None,
278
TXT = None,
279
domain = "",
280
host = "",
281
max_renames = 32768,
282
protocol = avahi.PROTO_UNSPEC,
283
bus = None):
140
284
self.interface = interface
141
285
self.name = name
142
286
self.type = servicetype
150
294
self.group = None # our entry group
151
295
self.server = None
152
296
self.bus = bus
153
def rename(self):
297
self.entry_group_state_changed_match = None
298
299
def rename(self, remove=True):
154
300
"""Derived from the Avahi example code"""
155
301
if self.rename_count >= self.max_renames:
156
logger.critical(u"No suitable Zeroconf service name found"
157
u" after %i retries, exiting.",
302
logger.critical("No suitable Zeroconf service name found"
303
" after %i retries, exiting.",
158
304
self.rename_count)
159
raise AvahiServiceError(u"Too many renames")
160
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
161
logger.info(u"Changing Zeroconf service name to %r ...",
305
raise AvahiServiceError("Too many renames")
306
self.name = str(
307
self.server.GetAlternativeServiceName(self.name))
308
self.rename_count += 1
309
logger.info("Changing Zeroconf service name to %r ...",
162
310
self.name)
163
syslogger.setFormatter(logging.Formatter
164
(u'Mandos (%s) [%%(process)d]:'
165
u' %%(levelname)s: %%(message)s'
166
% self.name))
167
self.remove()
311
if remove:
312
self.remove()
168
313
try:
169
314
self.add()
170
except dbus.exceptions.DBusException, error:
171
logger.critical(u"DBusException: %s", error)
172
self.cleanup()
173
os._exit(1)
174
self.rename_count += 1
315
except dbus.exceptions.DBusException as error:
316
if (error.get_dbus_name()
317
== "org.freedesktop.Avahi.CollisionError"):
318
logger.info("Local Zeroconf service name collision.")
319
return self.rename(remove=False)
320
else:
321
logger.critical("D-Bus Exception", exc_info=error)
322
self.cleanup()
323
os._exit(1)
324
175
325
def remove(self):
176
326
"""Derived from the Avahi example code"""
327
if self.entry_group_state_changed_match is not None:
328
self.entry_group_state_changed_match.remove()
329
self.entry_group_state_changed_match = None
177
330
if self.group is not None:
178
331
self.group.Reset()
332
179
333
def add(self):
180
334
"""Derived from the Avahi example code"""
335
self.remove()
181
336
if self.group is None:
182
337
self.group = dbus.Interface(
183
338
self.bus.get_object(avahi.DBUS_NAME,
184
339
self.server.EntryGroupNew()),
185
340
avahi.DBUS_INTERFACE_ENTRY_GROUP)
186
self.group.connect_to_signal('StateChanged',
187
self
188
.entry_group_state_changed)
189
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
341
self.entry_group_state_changed_match = (
342
self.group.connect_to_signal(
343
'StateChanged', self.entry_group_state_changed))
344
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
190
345
self.name, self.type)
191
346
self.group.AddService(
192
347
self.interface,
197
352
dbus.UInt16(self.port),
198
353
avahi.string_array_to_txt_array(self.TXT))
199
354
self.group.Commit()
355
200
356
def entry_group_state_changed(self, state, error):
201
357
"""Derived from the Avahi example code"""
202
logger.debug(u"Avahi entry group state change: %i", state)
358
logger.debug("Avahi entry group state change: %i", state)
203
359
204
360
if state == avahi.ENTRY_GROUP_ESTABLISHED:
205
logger.debug(u"Zeroconf service established.")
361
logger.debug("Zeroconf service established.")
206
362
elif state == avahi.ENTRY_GROUP_COLLISION:
207
logger.info(u"Zeroconf service name collision.")
363
logger.info("Zeroconf service name collision.")
208
364
self.rename()
209
365
elif state == avahi.ENTRY_GROUP_FAILURE:
210
logger.critical(u"Avahi: Error in group state changed %s",
211
unicode(error))
212
raise AvahiGroupError(u"State changed: %s"
213
% unicode(error))
366
logger.critical("Avahi: Error in group state changed %s",
367
str(error))
368
raise AvahiGroupError("State changed: {!s}".format(error))
369
214
370
def cleanup(self):
215
371
"""Derived from the Avahi example code"""
216
372
if self.group is not None:
217
self.group.Free()
373
try:
374
self.group.Free()
375
except (dbus.exceptions.UnknownMethodException,
376
dbus.exceptions.DBusException):
377
pass
218
378
self.group = None
219
def server_state_changed(self, state):
379
self.remove()
380
381
def server_state_changed(self, state, error=None):
220
382
"""Derived from the Avahi example code"""
221
logger.debug(u"Avahi server state change: %i", state)
222
if state == avahi.SERVER_COLLISION:
223
logger.error(u"Zeroconf server name collision")
224
self.remove()
383
logger.debug("Avahi server state change: %i", state)
384
bad_states = {
385
avahi.SERVER_INVALID: "Zeroconf server invalid",
386
avahi.SERVER_REGISTERING: None,
387
avahi.SERVER_COLLISION: "Zeroconf server name collision",
388
avahi.SERVER_FAILURE: "Zeroconf server failure",
389
}
390
if state in bad_states:
391
if bad_states[state] is not None:
392
if error is None:
393
logger.error(bad_states[state])
394
else:
395
logger.error(bad_states[state] + ": %r", error)
396
self.cleanup()
225
397
elif state == avahi.SERVER_RUNNING:
226
self.add()
398
try:
399
self.add()
400
except dbus.exceptions.DBusException as error:
401
if (error.get_dbus_name()
402
== "org.freedesktop.Avahi.CollisionError"):
403
logger.info("Local Zeroconf service name"
404
" collision.")
405
return self.rename(remove=False)
406
else:
407
logger.critical("D-Bus Exception", exc_info=error)
408
self.cleanup()
409
os._exit(1)
410
else:
411
if error is None:
412
logger.debug("Unknown state: %r", state)
413
else:
414
logger.debug("Unknown state: %r: %r", state, error)
415
227
416
def activate(self):
228
417
"""Derived from the Avahi example code"""
229
418
if self.server is None:
230
419
self.server = dbus.Interface(
231
420
self.bus.get_object(avahi.DBUS_NAME,
232
avahi.DBUS_PATH_SERVER),
421
avahi.DBUS_PATH_SERVER,
422
follow_name_owner_changes=True),
233
423
avahi.DBUS_INTERFACE_SERVER)
234
self.server.connect_to_signal(u"StateChanged",
235
self.server_state_changed)
424
self.server.connect_to_signal("StateChanged",
425
self.server_state_changed)
236
426
self.server_state_changed(self.server.GetState())
237
427
238
428
429
class AvahiServiceToSyslog(AvahiService):
430
def rename(self, *args, **kwargs):
431
"""Add the new name to the syslog messages"""
432
ret = AvahiService.rename(self, *args, **kwargs)
433
syslogger.setFormatter(logging.Formatter(
434
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
435
.format(self.name)))
436
return ret
437
438
def call_pipe(connection, # : multiprocessing.Connection
439
func, *args, **kwargs):
440
"""This function is meant to be called by multiprocessing.Process
441
442
This function runs func(*args, **kwargs), and writes the resulting
443
return value on the provided multiprocessing.Connection.
444
"""
445
connection.send(func(*args, **kwargs))
446
connection.close()
447
239
448
class Client(object):
240
449
"""A representation of a client host served by this server.
241
450
242
451
Attributes:
243
_approved: bool(); 'None' if not yet approved/disapproved
452
approved: bool(); 'None' if not yet approved/disapproved
244
453
approval_delay: datetime.timedelta(); Time to wait for approval
245
454
approval_duration: datetime.timedelta(); Duration of one approval
246
455
checker: subprocess.Popen(); a running checker process used
253
462
instance %(name)s can be used in the command.
254
463
checker_initiator_tag: a gobject event source tag, or None
255
464
created: datetime.datetime(); (UTC) object creation
465
client_structure: Object describing what attributes a client has
466
and is used for storing the client at exit
256
467
current_checker_command: string; current running checker_command
257
disable_hook: If set, called by disable() as disable_hook(self)
258
468
disable_initiator_tag: a gobject event source tag, or None
259
469
enabled: bool()
260
470
fingerprint: string (40 or 32 hexadecimal digits); used to
263
473
interval: datetime.timedelta(); How often to start a new checker
264
474
last_approval_request: datetime.datetime(); (UTC) or None
265
475
last_checked_ok: datetime.datetime(); (UTC) or None
266
last_enabled: datetime.datetime(); (UTC)
476
last_checker_status: integer between 0 and 255 reflecting exit
477
status of last checker. -1 reflects crashed
478
checker, -2 means no checker completed yet.
479
last_checker_signal: The signal which killed the last checker, if
480
last_checker_status is -1
481
last_enabled: datetime.datetime(); (UTC) or None
267
482
name: string; from the config file, used in log messages and
268
483
D-Bus identifiers
269
484
secret: bytestring; sent verbatim (over TLS) to client
270
485
timeout: datetime.timedelta(); How long from last_checked_ok
271
486
until this client is disabled
487
extended_timeout: extra long timeout when secret has been sent
272
488
runtime_expansions: Allowed attributes for runtime expansion.
489
expires: datetime.datetime(); time (UTC) when a client will be
490
disabled, or None
491
server_settings: The server_settings dict from main()
273
492
"""
274
493
275
runtime_expansions = (u"approval_delay", u"approval_duration",
276
u"created", u"enabled", u"fingerprint",
277
u"host", u"interval", u"last_checked_ok",
278
u"last_enabled", u"name", u"timeout")
494
runtime_expansions = ("approval_delay", "approval_duration",
495
"created", "enabled", "expires",
496
"fingerprint", "host", "interval",
497
"last_approval_request", "last_checked_ok",
498
"last_enabled", "name", "timeout")
499
client_defaults = {
500
"timeout": "PT5M",
501
"extended_timeout": "PT15M",
502
"interval": "PT2M",
503
"checker": "fping -q -- %%(host)s",
504
"host": "",
505
"approval_delay": "PT0S",
506
"approval_duration": "PT1S",
507
"approved_by_default": "True",
508
"enabled": "True",
509
}
279
510
280
511
@staticmethod
281
def _timedelta_to_milliseconds(td):
282
"Convert a datetime.timedelta() to milliseconds"
283
return ((td.days * 24 * 60 * 60 * 1000)
284
+ (td.seconds * 1000)
285
+ (td.microseconds // 1000))
286
287
def timeout_milliseconds(self):
288
"Return the 'timeout' attribute in milliseconds"
289
return self._timedelta_to_milliseconds(self.timeout)
290
291
def interval_milliseconds(self):
292
"Return the 'interval' attribute in milliseconds"
293
return self._timedelta_to_milliseconds(self.interval)
294
295
def approval_delay_milliseconds(self):
296
return self._timedelta_to_milliseconds(self.approval_delay)
297
298
def __init__(self, name = None, disable_hook=None, config=None):
299
"""Note: the 'checker' key in 'config' sets the
300
'checker_command' attribute and *not* the 'checker'
301
attribute."""
512
def config_parser(config):
513
"""Construct a new dict of client settings of this form:
514
{ client_name: {setting_name: value, ...}, ...}
515
with exceptions for any special settings as defined above.
516
NOTE: Must be a pure function. Must return the same result
517
value given the same arguments.
518
"""
519
settings = {}
520
for client_name in config.sections():
521
section = dict(config.items(client_name))
522
client = settings[client_name] = {}
523
524
client["host"] = section["host"]
525
# Reformat values from string types to Python types
526
client["approved_by_default"] = config.getboolean(
527
client_name, "approved_by_default")
528
client["enabled"] = config.getboolean(client_name,
529
"enabled")
530
531
# Uppercase and remove spaces from fingerprint for later
532
# comparison purposes with return value from the
533
# fingerprint() function
534
client["fingerprint"] = (section["fingerprint"].upper()
535
.replace(" ", ""))
536
if "secret" in section:
537
client["secret"] = section["secret"].decode("base64")
538
elif "secfile" in section:
539
with open(os.path.expanduser(os.path.expandvars
540
(section["secfile"])),
541
"rb") as secfile:
542
client["secret"] = secfile.read()
543
else:
544
raise TypeError("No secret or secfile for section {}"
545
.format(section))
546
client["timeout"] = string_to_delta(section["timeout"])
547
client["extended_timeout"] = string_to_delta(
548
section["extended_timeout"])
549
client["interval"] = string_to_delta(section["interval"])
550
client["approval_delay"] = string_to_delta(
551
section["approval_delay"])
552
client["approval_duration"] = string_to_delta(
553
section["approval_duration"])
554
client["checker_command"] = section["checker"]
555
client["last_approval_request"] = None
556
client["last_checked_ok"] = None
557
client["last_checker_status"] = -2
558
559
return settings
560
561
def __init__(self, settings, name = None, server_settings=None):
302
562
self.name = name
303
if config is None:
304
config = {}
305
logger.debug(u"Creating client %r", self.name)
306
# Uppercase and remove spaces from fingerprint for later
307
# comparison purposes with return value from the fingerprint()
308
# function
309
self.fingerprint = (config[u"fingerprint"].upper()
310
.replace(u" ", u""))
311
logger.debug(u" Fingerprint: %s", self.fingerprint)
312
if u"secret" in config:
313
self.secret = config[u"secret"].decode(u"base64")
314
elif u"secfile" in config:
315
with open(os.path.expanduser(os.path.expandvars
316
(config[u"secfile"])),
317
"rb") as secfile:
318
self.secret = secfile.read()
563
if server_settings is None:
564
server_settings = {}
565
self.server_settings = server_settings
566
# adding all client settings
567
for setting, value in settings.items():
568
setattr(self, setting, value)
569
570
if self.enabled:
571
if not hasattr(self, "last_enabled"):
572
self.last_enabled = datetime.datetime.utcnow()
573
if not hasattr(self, "expires"):
574
self.expires = (datetime.datetime.utcnow()
575
+ self.timeout)
319
576
else:
320
raise TypeError(u"No secret or secfile for client %s"
321
% self.name)
322
self.host = config.get(u"host", u"")
323
self.created = datetime.datetime.utcnow()
324
self.enabled = False
325
self.last_approval_request = None
326
self.last_enabled = None
327
self.last_checked_ok = None
328
self.timeout = string_to_delta(config[u"timeout"])
329
self.interval = string_to_delta(config[u"interval"])
330
self.disable_hook = disable_hook
577
self.last_enabled = None
578
self.expires = None
579
580
logger.debug("Creating client %r", self.name)
581
logger.debug(" Fingerprint: %s", self.fingerprint)
582
self.created = settings.get("created",
583
datetime.datetime.utcnow())
584
585
# attributes specific for this server instance
331
586
self.checker = None
332
587
self.checker_initiator_tag = None
333
588
self.disable_initiator_tag = None
334
589
self.checker_callback_tag = None
335
self.checker_command = config[u"checker"]
336
590
self.current_checker_command = None
337
self.last_connect = None
338
self._approved = None
339
self.approved_by_default = config.get(u"approved_by_default",
340
True)
591
self.approved = None
341
592
self.approvals_pending = 0
342
self.approval_delay = string_to_delta(
343
config[u"approval_delay"])
344
self.approval_duration = string_to_delta(
345
config[u"approval_duration"])
346
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
593
self.changedstate = multiprocessing_manager.Condition(
594
multiprocessing_manager.Lock())
595
self.client_structure = [attr
596
for attr in self.__dict__.iterkeys()
597
if not attr.startswith("_")]
598
self.client_structure.append("client_structure")
599
600
for name, t in inspect.getmembers(
601
type(self), lambda obj: isinstance(obj, property)):
602
if not name.startswith("_"):
603
self.client_structure.append(name)
347
604
605
# Send notice to process children that client state has changed
348
606
def send_changedstate(self):
349
self.changedstate.acquire()
350
self.changedstate.notify_all()
351
self.changedstate.release()
352
607
with self.changedstate:
608
self.changedstate.notify_all()
609
353
610
def enable(self):
354
611
"""Start this client's checker and timeout hooks"""
355
if getattr(self, u"enabled", False):
612
if getattr(self, "enabled", False):
356
613
# Already enabled
357
614
return
358
self.send_changedstate()
615
self.expires = datetime.datetime.utcnow() + self.timeout
616
self.enabled = True
359
617
self.last_enabled = datetime.datetime.utcnow()
360
# Schedule a new checker to be started an 'interval' from now,
361
# and every interval from then on.
362
self.checker_initiator_tag = (gobject.timeout_add
363
(self.interval_milliseconds(),
364
self.start_checker))
365
# Schedule a disable() when 'timeout' has passed
366
self.disable_initiator_tag = (gobject.timeout_add
367
(self.timeout_milliseconds(),
368
self.disable))
369
self.enabled = True
370
# Also start a new checker *right now*.
371
self.start_checker()
618
self.init_checker()
619
self.send_changedstate()
372
620
373
621
def disable(self, quiet=True):
374
622
"""Disable this client."""
375
623
if not getattr(self, "enabled", False):
376
624
return False
377
625
if not quiet:
626
logger.info("Disabling client %s", self.name)
627
if getattr(self, "disable_initiator_tag", None) is not None:
628
gobject.source_remove(self.disable_initiator_tag)
629
self.disable_initiator_tag = None
630
self.expires = None
631
if getattr(self, "checker_initiator_tag", None) is not None:
632
gobject.source_remove(self.checker_initiator_tag)
633
self.checker_initiator_tag = None
634
self.stop_checker()
635
self.enabled = False
636
if not quiet:
378
637
self.send_changedstate()
379
if not quiet:
380
logger.info(u"Disabling client %s", self.name)
381
if getattr(self, u"disable_initiator_tag", False):
382
gobject.source_remove(self.disable_initiator_tag)
383
self.disable_initiator_tag = None
384
if getattr(self, u"checker_initiator_tag", False):
385
gobject.source_remove(self.checker_initiator_tag)
386
self.checker_initiator_tag = None
387
self.stop_checker()
388
if self.disable_hook:
389
self.disable_hook(self)
390
self.enabled = False
391
638
# Do not run this again if called by a gobject.timeout_add
392
639
return False
393
640
394
641
def __del__(self):
395
self.disable_hook = None
396
642
self.disable()
397
643
398
def checker_callback(self, pid, condition, command):
644
def init_checker(self):
645
# Schedule a new checker to be started an 'interval' from now,
646
# and every interval from then on.
647
if self.checker_initiator_tag is not None:
648
gobject.source_remove(self.checker_initiator_tag)
649
self.checker_initiator_tag = gobject.timeout_add(
650
int(self.interval.total_seconds() * 1000),
651
self.start_checker)
652
# Schedule a disable() when 'timeout' has passed
653
if self.disable_initiator_tag is not None:
654
gobject.source_remove(self.disable_initiator_tag)
655
self.disable_initiator_tag = gobject.timeout_add(
656
int(self.timeout.total_seconds() * 1000), self.disable)
657
# Also start a new checker *right now*.
658
self.start_checker()
659
660
def checker_callback(self, source, condition, connection,
661
command):
399
662
"""The checker has completed, so take appropriate actions."""
400
663
self.checker_callback_tag = None
401
664
self.checker = None
402
if os.WIFEXITED(condition):
403
exitstatus = os.WEXITSTATUS(condition)
404
if exitstatus == 0:
405
logger.info(u"Checker for %(name)s succeeded",
665
# Read return code from connection (see call_pipe)
666
returncode = connection.recv()
667
connection.close()
668
669
if returncode >= 0:
670
self.last_checker_status = returncode
671
self.last_checker_signal = None
672
if self.last_checker_status == 0:
673
logger.info("Checker for %(name)s succeeded",
406
674
vars(self))
407
675
self.checked_ok()
408
676
else:
409
logger.info(u"Checker for %(name)s failed",
410
vars(self))
677
logger.info("Checker for %(name)s failed", vars(self))
411
678
else:
412
logger.warning(u"Checker for %(name)s crashed?",
679
self.last_checker_status = -1
680
self.last_checker_signal = -returncode
681
logger.warning("Checker for %(name)s crashed?",
413
682
vars(self))
683
return False
414
684
415
685
def checked_ok(self):
416
"""Bump up the timeout for this client.
417
418
This should only be called when the client has been seen,
419
alive and well.
420
"""
686
"""Assert that the client has been seen, alive and well."""
421
687
self.last_checked_ok = datetime.datetime.utcnow()
422
gobject.source_remove(self.disable_initiator_tag)
423
self.disable_initiator_tag = (gobject.timeout_add
424
(self.timeout_milliseconds(),
425
self.disable))
688
self.last_checker_status = 0
689
self.last_checker_signal = None
690
self.bump_timeout()
691
692
def bump_timeout(self, timeout=None):
693
"""Bump up the timeout for this client."""
694
if timeout is None:
695
timeout = self.timeout
696
if self.disable_initiator_tag is not None:
697
gobject.source_remove(self.disable_initiator_tag)
698
self.disable_initiator_tag = None
699
if getattr(self, "enabled", False):
700
self.disable_initiator_tag = gobject.timeout_add(
701
int(timeout.total_seconds() * 1000), self.disable)
702
self.expires = datetime.datetime.utcnow() + timeout
426
703
427
704
def need_approval(self):
428
705
self.last_approval_request = datetime.datetime.utcnow()
433
710
If a checker already exists, leave it running and do
434
711
nothing."""
435
712
# The reason for not killing a running checker is that if we
436
# did that, then if a checker (for some reason) started
437
# running slowly and taking more than 'interval' time, the
438
# client would inevitably timeout, since no checker would get
439
# a chance to run to completion. If we instead leave running
713
# did that, and if a checker (for some reason) started running
714
# slowly and taking more than 'interval' time, then the client
715
# would inevitably timeout, since no checker would get a
716
# chance to run to completion. If we instead leave running
440
717
# checkers alone, the checker would have to take more time
441
718
# than 'timeout' for the client to be disabled, which is as it
442
719
# should be.
443
720
444
# If a checker exists, make sure it is not a zombie
445
try:
446
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
447
except (AttributeError, OSError), error:
448
if (isinstance(error, OSError)
449
and error.errno != errno.ECHILD):
450
raise error
451
else:
452
if pid:
453
logger.warning(u"Checker was a zombie")
454
gobject.source_remove(self.checker_callback_tag)
455
self.checker_callback(pid, status,
456
self.current_checker_command)
721
if self.checker is not None and not self.checker.is_alive():
722
logger.warning("Checker was not alive; joining")
723
self.checker.join()
724
self.checker = None
457
725
# Start a new checker if needed
458
726
if self.checker is None:
727
# Escape attributes for the shell
728
escaped_attrs = {
729
attr: re.escape(str(getattr(self, attr)))
730
for attr in self.runtime_expansions }
459
731
try:
460
# In case checker_command has exactly one % operator
461
command = self.checker_command % self.host
462
except TypeError:
463
# Escape attributes for the shell
464
escaped_attrs = dict(
465
(attr,
466
re.escape(unicode(str(getattr(self, attr, u"")),
467
errors=
468
u'replace')))
469
for attr in
470
self.runtime_expansions)
471
472
try:
473
command = self.checker_command % escaped_attrs
474
except TypeError, error:
475
logger.error(u'Could not format string "%s":'
476
u' %s', self.checker_command, error)
477
return True # Try again later
732
command = self.checker_command % escaped_attrs
733
except TypeError as error:
734
logger.error('Could not format string "%s"',
735
self.checker_command,
736
exc_info=error)
737
return True # Try again later
478
738
self.current_checker_command = command
479
try:
480
logger.info(u"Starting checker %r for %s",
481
command, self.name)
482
# We don't need to redirect stdout and stderr, since
483
# in normal mode, that is already done by daemon(),
484
# and in debug mode we don't want to. (Stdin is
485
# always replaced by /dev/null.)
486
self.checker = subprocess.Popen(command,
487
close_fds=True,
488
shell=True, cwd=u"/")
489
self.checker_callback_tag = (gobject.child_watch_add
490
(self.checker.pid,
491
self.checker_callback,
492
data=command))
493
# The checker may have completed before the gobject
494
# watch was added. Check for this.
495
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
496
if pid:
497
gobject.source_remove(self.checker_callback_tag)
498
self.checker_callback(pid, status, command)
499
except OSError, error:
500
logger.error(u"Failed to start subprocess: %s",
501
error)
739
logger.info("Starting checker %r for %s", command,
740
self.name)
741
# We don't need to redirect stdout and stderr, since
742
# in normal mode, that is already done by daemon(),
743
# and in debug mode we don't want to. (Stdin is
744
# always replaced by /dev/null.)
745
# The exception is when not debugging but nevertheless
746
# running in the foreground; use the previously
747
# created wnull.
748
popen_args = { "close_fds": True,
749
"shell": True,
750
"cwd": "/" }
751
if (not self.server_settings["debug"]
752
and self.server_settings["foreground"]):
753
popen_args.update({"stdout": wnull,
754
"stderr": wnull })
755
pipe = multiprocessing.Pipe(duplex = False)
756
self.checker = multiprocessing.Process(
757
target = call_pipe,
758
args = (pipe[1], subprocess.call, command),
759
kwargs = popen_args)
760
self.checker.start()
761
self.checker_callback_tag = gobject.io_add_watch(
762
pipe[0].fileno(), gobject.IO_IN,
763
self.checker_callback, pipe[0], command)
502
764
# Re-run this periodically if run by gobject.timeout_add
503
765
return True
504
766
507
769
if self.checker_callback_tag:
508
770
gobject.source_remove(self.checker_callback_tag)
509
771
self.checker_callback_tag = None
510
if getattr(self, u"checker", None) is None:
772
if getattr(self, "checker", None) is None:
511
773
return
512
logger.debug(u"Stopping checker for %(name)s", vars(self))
513
try:
514
os.kill(self.checker.pid, signal.SIGTERM)
515
#time.sleep(0.5)
516
#if self.checker.poll() is None:
517
# os.kill(self.checker.pid, signal.SIGKILL)
518
except OSError, error:
519
if error.errno != errno.ESRCH: # No such process
520
raise
774
logger.debug("Stopping checker for %(name)s", vars(self))
775
self.checker.terminate()
521
776
self.checker = None
522
777
523
def dbus_service_property(dbus_interface, signature=u"v",
524
access=u"readwrite", byte_arrays=False):
778
779
def dbus_service_property(dbus_interface,
780
signature="v",
781
access="readwrite",
782
byte_arrays=False):
525
783
"""Decorators for marking methods of a DBusObjectWithProperties to
526
784
become properties on the D-Bus.
527
785
534
792
"""
535
793
# Encoding deeply encoded byte arrays is not supported yet by the
536
794
# "Set" method, so we fail early here:
537
if byte_arrays and signature != u"ay":
538
raise ValueError(u"Byte arrays not supported for non-'ay'"
539
u" signature %r" % signature)
795
if byte_arrays and signature != "ay":
796
raise ValueError("Byte arrays not supported for non-'ay'"
797
" signature {!r}".format(signature))
798
540
799
def decorator(func):
541
800
func._dbus_is_property = True
542
801
func._dbus_interface = dbus_interface
543
802
func._dbus_signature = signature
544
803
func._dbus_access = access
545
804
func._dbus_name = func.__name__
546
if func._dbus_name.endswith(u"_dbus_property"):
805
if func._dbus_name.endswith("_dbus_property"):
547
806
func._dbus_name = func._dbus_name[:-14]
548
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
549
return func
807
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
808
return func
809
810
return decorator
811
812
813
def dbus_interface_annotations(dbus_interface):
814
"""Decorator for marking functions returning interface annotations
815
816
Usage:
817
818
@dbus_interface_annotations("org.example.Interface")
819
def _foo(self): # Function name does not matter
820
return {"org.freedesktop.DBus.Deprecated": "true",
821
"org.freedesktop.DBus.Property.EmitsChangedSignal":
822
"false"}
823
"""
824
825
def decorator(func):
826
func._dbus_is_interface = True
827
func._dbus_interface = dbus_interface
828
func._dbus_name = dbus_interface
829
return func
830
831
return decorator
832
833
834
def dbus_annotations(annotations):
835
"""Decorator to annotate D-Bus methods, signals or properties
836
Usage:
837
838
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
839
"org.freedesktop.DBus.Property."
840
"EmitsChangedSignal": "false"})
841
@dbus_service_property("org.example.Interface", signature="b",
842
access="r")
843
def Property_dbus_property(self):
844
return dbus.Boolean(False)
845
846
See also the DBusObjectWithAnnotations class.
847
"""
848
849
def decorator(func):
850
func._dbus_annotations = annotations
851
return func
852
550
853
return decorator
551
854
552
855
553
856
class DBusPropertyException(dbus.exceptions.DBusException):
554
857
"""A base class for D-Bus property-related exceptions
555
858
"""
556
def __unicode__(self):
557
return unicode(str(self))
859
pass
558
860
559
861
560
862
class DBusPropertyAccessException(DBusPropertyException):
569
871
pass
570
872
571
873
572
class DBusObjectWithProperties(dbus.service.Object):
874
class DBusObjectWithAnnotations(dbus.service.Object):
875
"""A D-Bus object with annotations.
876
877
Classes inheriting from this can use the dbus_annotations
878
decorator to add annotations to methods or signals.
879
"""
880
881
@staticmethod
882
def _is_dbus_thing(thing):
883
"""Returns a function testing if an attribute is a D-Bus thing
884
885
If called like _is_dbus_thing("method") it returns a function
886
suitable for use as predicate to inspect.getmembers().
887
"""
888
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
889
False)
890
891
def _get_all_dbus_things(self, thing):
892
"""Returns a generator of (name, attribute) pairs
893
"""
894
return ((getattr(athing.__get__(self), "_dbus_name", name),
895
athing.__get__(self))
896
for cls in self.__class__.__mro__
897
for name, athing in
898
inspect.getmembers(cls, self._is_dbus_thing(thing)))
899
900
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
901
out_signature = "s",
902
path_keyword = 'object_path',
903
connection_keyword = 'connection')
904
def Introspect(self, object_path, connection):
905
"""Overloading of standard D-Bus method.
906
907
Inserts annotation tags on methods and signals.
908
"""
909
xmlstring = dbus.service.Object.Introspect(self, object_path,
910
connection)
911
try:
912
document = xml.dom.minidom.parseString(xmlstring)
913
914
for if_tag in document.getElementsByTagName("interface"):
915
# Add annotation tags
916
for typ in ("method", "signal"):
917
for tag in if_tag.getElementsByTagName(typ):
918
annots = dict()
919
for name, prop in (self.
920
_get_all_dbus_things(typ)):
921
if (name == tag.getAttribute("name")
922
and prop._dbus_interface
923
== if_tag.getAttribute("name")):
924
annots.update(getattr(
925
prop, "_dbus_annotations", {}))
926
for name, value in annots.items():
927
ann_tag = document.createElement(
928
"annotation")
929
ann_tag.setAttribute("name", name)
930
ann_tag.setAttribute("value", value)
931
tag.appendChild(ann_tag)
932
# Add interface annotation tags
933
for annotation, value in dict(
934
itertools.chain.from_iterable(
935
annotations().items()
936
for name, annotations
937
in self._get_all_dbus_things("interface")
938
if name == if_tag.getAttribute("name")
939
)).items():
940
ann_tag = document.createElement("annotation")
941
ann_tag.setAttribute("name", annotation)
942
ann_tag.setAttribute("value", value)
943
if_tag.appendChild(ann_tag)
944
# Fix argument name for the Introspect method itself
945
if (if_tag.getAttribute("name")
946
== dbus.INTROSPECTABLE_IFACE):
947
for cn in if_tag.getElementsByTagName("method"):
948
if cn.getAttribute("name") == "Introspect":
949
for arg in cn.getElementsByTagName("arg"):
950
if (arg.getAttribute("direction")
951
== "out"):
952
arg.setAttribute("name",
953
"xml_data")
954
xmlstring = document.toxml("utf-8")
955
document.unlink()
956
except (AttributeError, xml.dom.DOMException,
957
xml.parsers.expat.ExpatError) as error:
958
logger.error("Failed to override Introspection method",
959
exc_info=error)
960
return xmlstring
961
962
963
class DBusObjectWithProperties(DBusObjectWithAnnotations):
573
964
"""A D-Bus object with properties.
574
965
575
966
Classes inheriting from this can use the dbus_service_property
576
967
decorator to expose methods as D-Bus properties. It exposes the
577
968
standard Get(), Set(), and GetAll() methods on the D-Bus.
578
969
"""
579
970
580
@staticmethod
581
def _is_dbus_property(obj):
582
return getattr(obj, u"_dbus_is_property", False)
583
584
def _get_all_dbus_properties(self):
585
"""Returns a generator of (name, attribute) pairs
586
"""
587
return ((prop._dbus_name, prop)
588
for name, prop in
589
inspect.getmembers(self, self._is_dbus_property))
590
591
971
def _get_dbus_property(self, interface_name, property_name):
592
972
"""Returns a bound method if one exists which is a D-Bus
593
973
property with the specified name and interface.
594
974
"""
595
for name in (property_name,
596
property_name + u"_dbus_property"):
597
prop = getattr(self, name, None)
598
if (prop is None
599
or not self._is_dbus_property(prop)
600
or prop._dbus_name != property_name
601
or (interface_name and prop._dbus_interface
602
and interface_name != prop._dbus_interface)):
603
continue
604
return prop
975
for cls in self.__class__.__mro__:
976
for name, value in inspect.getmembers(
977
cls, self._is_dbus_thing("property")):
978
if (value._dbus_name == property_name
979
and value._dbus_interface == interface_name):
980
return value.__get__(self)
981
605
982
# No such property
606
raise DBusPropertyNotFound(self.dbus_object_path + u":"
607
+ interface_name + u"."
608
+ property_name)
983
raise DBusPropertyNotFound("{}:{}.{}".format(
984
self.dbus_object_path, interface_name, property_name))
609
985
610
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
611
out_signature=u"v")
986
@dbus.service.method(dbus.PROPERTIES_IFACE,
987
in_signature="ss",
988
out_signature="v")
612
989
def Get(self, interface_name, property_name):
613
990
"""Standard D-Bus property Get() method, see D-Bus standard.
614
991
"""
615
992
prop = self._get_dbus_property(interface_name, property_name)
616
if prop._dbus_access == u"write":
993
if prop._dbus_access == "write":
617
994
raise DBusPropertyAccessException(property_name)
618
995
value = prop()
619
if not hasattr(value, u"variant_level"):
996
if not hasattr(value, "variant_level"):
620
997
return value
621
998
return type(value)(value, variant_level=value.variant_level+1)
622
999
623
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
1000
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
624
1001
def Set(self, interface_name, property_name, value):
625
1002
"""Standard D-Bus property Set() method, see D-Bus standard.
626
1003
"""
627
1004
prop = self._get_dbus_property(interface_name, property_name)
628
if prop._dbus_access == u"read":
1005
if prop._dbus_access == "read":
629
1006
raise DBusPropertyAccessException(property_name)
630
if prop._dbus_get_args_options[u"byte_arrays"]:
1007
if prop._dbus_get_args_options["byte_arrays"]:
631
1008
# The byte_arrays option is not supported yet on
632
1009
# signatures other than "ay".
633
if prop._dbus_signature != u"ay":
634
raise ValueError
635
value = dbus.ByteArray(''.join(unichr(byte)
636
for byte in value))
1010
if prop._dbus_signature != "ay":
1011
raise ValueError("Byte arrays not supported for non-"
1012
"'ay' signature {!r}"
1013
.format(prop._dbus_signature))
1014
value = dbus.ByteArray(b''.join(chr(byte)
1015
for byte in value))
637
1016
prop(value)
638
1017
639
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
640
out_signature=u"a{sv}")
1018
@dbus.service.method(dbus.PROPERTIES_IFACE,
1019
in_signature="s",
1020
out_signature="a{sv}")
641
1021
def GetAll(self, interface_name):
642
1022
"""Standard D-Bus property GetAll() method, see D-Bus
643
1023
standard.
644
1024
645
1025
Note: Will not include properties with access="write".
646
1026
"""
647
all = {}
648
for name, prop in self._get_all_dbus_properties():
1027
properties = {}
1028
for name, prop in self._get_all_dbus_things("property"):
649
1029
if (interface_name
650
1030
and interface_name != prop._dbus_interface):
651
1031
# Interface non-empty but did not match
652
1032
continue
653
1033
# Ignore write-only properties
654
if prop._dbus_access == u"write":
1034
if prop._dbus_access == "write":
655
1035
continue
656
1036
value = prop()
657
if not hasattr(value, u"variant_level"):
658
all[name] = value
1037
if not hasattr(value, "variant_level"):
1038
properties[name] = value
659
1039
continue
660
all[name] = type(value)(value, variant_level=
661
value.variant_level+1)
662
return dbus.Dictionary(all, signature=u"sv")
1040
properties[name] = type(value)(
1041
value, variant_level = value.variant_level + 1)
1042
return dbus.Dictionary(properties, signature="sv")
1043
1044
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1045
def PropertiesChanged(self, interface_name, changed_properties,
1046
invalidated_properties):
1047
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1048
standard.
1049
"""
1050
pass
663
1051
664
1052
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
665
out_signature=u"s",
1053
out_signature="s",
666
1054
path_keyword='object_path',
667
1055
connection_keyword='connection')
668
1056
def Introspect(self, object_path, connection):
669
"""Standard D-Bus method, overloaded to insert property tags.
1057
"""Overloading of standard D-Bus method.
1058
1059
Inserts property tags and interface annotation tags.
670
1060
"""
671
xmlstring = dbus.service.Object.Introspect(self, object_path,
672
connection)
1061
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1062
object_path,
1063
connection)
673
1064
try:
674
1065
document = xml.dom.minidom.parseString(xmlstring)
1066
675
1067
def make_tag(document, name, prop):
676
e = document.createElement(u"property")
677
e.setAttribute(u"name", name)
678
e.setAttribute(u"type", prop._dbus_signature)
679
e.setAttribute(u"access", prop._dbus_access)
1068
e = document.createElement("property")
1069
e.setAttribute("name", name)
1070
e.setAttribute("type", prop._dbus_signature)
1071
e.setAttribute("access", prop._dbus_access)
680
1072
return e
681
for if_tag in document.getElementsByTagName(u"interface"):
1073
1074
for if_tag in document.getElementsByTagName("interface"):
1075
# Add property tags
682
1076
for tag in (make_tag(document, name, prop)
683
1077
for name, prop
684
in self._get_all_dbus_properties()
1078
in self._get_all_dbus_things("property")
685
1079
if prop._dbus_interface
686
== if_tag.getAttribute(u"name")):
1080
== if_tag.getAttribute("name")):
687
1081
if_tag.appendChild(tag)
1082
# Add annotation tags for properties
1083
for tag in if_tag.getElementsByTagName("property"):
1084
annots = dict()
1085
for name, prop in self._get_all_dbus_things(
1086
"property"):
1087
if (name == tag.getAttribute("name")
1088
and prop._dbus_interface
1089
== if_tag.getAttribute("name")):
1090
annots.update(getattr(
1091
prop, "_dbus_annotations", {}))
1092
for name, value in annots.items():
1093
ann_tag = document.createElement(
1094
"annotation")
1095
ann_tag.setAttribute("name", name)
1096
ann_tag.setAttribute("value", value)
1097
tag.appendChild(ann_tag)
688
1098
# Add the names to the return values for the
689
1099
# "org.freedesktop.DBus.Properties" methods
690
if (if_tag.getAttribute(u"name")
691
== u"org.freedesktop.DBus.Properties"):
692
for cn in if_tag.getElementsByTagName(u"method"):
693
if cn.getAttribute(u"name") == u"Get":
694
for arg in cn.getElementsByTagName(u"arg"):
695
if (arg.getAttribute(u"direction")
696
== u"out"):
697
arg.setAttribute(u"name", u"value")
698
elif cn.getAttribute(u"name") == u"GetAll":
699
for arg in cn.getElementsByTagName(u"arg"):
700
if (arg.getAttribute(u"direction")
701
== u"out"):
702
arg.setAttribute(u"name", u"props")
703
xmlstring = document.toxml(u"utf-8")
1100
if (if_tag.getAttribute("name")
1101
== "org.freedesktop.DBus.Properties"):
1102
for cn in if_tag.getElementsByTagName("method"):
1103
if cn.getAttribute("name") == "Get":
1104
for arg in cn.getElementsByTagName("arg"):
1105
if (arg.getAttribute("direction")
1106
== "out"):
1107
arg.setAttribute("name", "value")
1108
elif cn.getAttribute("name") == "GetAll":
1109
for arg in cn.getElementsByTagName("arg"):
1110
if (arg.getAttribute("direction")
1111
== "out"):
1112
arg.setAttribute("name", "props")
1113
xmlstring = document.toxml("utf-8")
704
1114
document.unlink()
705
1115
except (AttributeError, xml.dom.DOMException,
706
xml.parsers.expat.ExpatError), error:
707
logger.error(u"Failed to override Introspection method",
708
error)
1116
xml.parsers.expat.ExpatError) as error:
1117
logger.error("Failed to override Introspection method",
1118
exc_info=error)
709
1119
return xmlstring
710
1120
711
1121
1122
def datetime_to_dbus(dt, variant_level=0):
1123
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1124
if dt is None:
1125
return dbus.String("", variant_level = variant_level)
1126
return dbus.String(dt.isoformat(), variant_level=variant_level)
1127
1128
1129
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1130
"""A class decorator; applied to a subclass of
1131
dbus.service.Object, it will add alternate D-Bus attributes with
1132
interface names according to the "alt_interface_names" mapping.
1133
Usage:
1134
1135
@alternate_dbus_interfaces({"org.example.Interface":
1136
"net.example.AlternateInterface"})
1137
class SampleDBusObject(dbus.service.Object):
1138
@dbus.service.method("org.example.Interface")
1139
def SampleDBusMethod():
1140
pass
1141
1142
The above "SampleDBusMethod" on "SampleDBusObject" will be
1143
reachable via two interfaces: "org.example.Interface" and
1144
"net.example.AlternateInterface", the latter of which will have
1145
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1146
"true", unless "deprecate" is passed with a False value.
1147
1148
This works for methods and signals, and also for D-Bus properties
1149
(from DBusObjectWithProperties) and interfaces (from the
1150
dbus_interface_annotations decorator).
1151
"""
1152
1153
def wrapper(cls):
1154
for orig_interface_name, alt_interface_name in (
1155
alt_interface_names.items()):
1156
attr = {}
1157
interface_names = set()
1158
# Go though all attributes of the class
1159
for attrname, attribute in inspect.getmembers(cls):
1160
# Ignore non-D-Bus attributes, and D-Bus attributes
1161
# with the wrong interface name
1162
if (not hasattr(attribute, "_dbus_interface")
1163
or not attribute._dbus_interface.startswith(
1164
orig_interface_name)):
1165
continue
1166
# Create an alternate D-Bus interface name based on
1167
# the current name
1168
alt_interface = attribute._dbus_interface.replace(
1169
orig_interface_name, alt_interface_name)
1170
interface_names.add(alt_interface)
1171
# Is this a D-Bus signal?
1172
if getattr(attribute, "_dbus_is_signal", False):
1173
if sys.version_info.major == 2:
1174
# Extract the original non-method undecorated
1175
# function by black magic
1176
nonmethod_func = (dict(
1177
zip(attribute.func_code.co_freevars,
1178
attribute.__closure__))
1179
["func"].cell_contents)
1180
else:
1181
nonmethod_func = attribute
1182
# Create a new, but exactly alike, function
1183
# object, and decorate it to be a new D-Bus signal
1184
# with the alternate D-Bus interface name
1185
if sys.version_info.major == 2:
1186
new_function = types.FunctionType(
1187
nonmethod_func.func_code,
1188
nonmethod_func.func_globals,
1189
nonmethod_func.func_name,
1190
nonmethod_func.func_defaults,
1191
nonmethod_func.func_closure)
1192
else:
1193
new_function = types.FunctionType(
1194
nonmethod_func.__code__,
1195
nonmethod_func.__globals__,
1196
nonmethod_func.__name__,
1197
nonmethod_func.__defaults__,
1198
nonmethod_func.__closure__)
1199
new_function = (dbus.service.signal(
1200
alt_interface,
1201
attribute._dbus_signature)(new_function))
1202
# Copy annotations, if any
1203
try:
1204
new_function._dbus_annotations = dict(
1205
attribute._dbus_annotations)
1206
except AttributeError:
1207
pass
1208
# Define a creator of a function to call both the
1209
# original and alternate functions, so both the
1210
# original and alternate signals gets sent when
1211
# the function is called
1212
def fixscope(func1, func2):
1213
"""This function is a scope container to pass
1214
func1 and func2 to the "call_both" function
1215
outside of its arguments"""
1216
1217
def call_both(*args, **kwargs):
1218
"""This function will emit two D-Bus
1219
signals by calling func1 and func2"""
1220
func1(*args, **kwargs)
1221
func2(*args, **kwargs)
1222
1223
return call_both
1224
# Create the "call_both" function and add it to
1225
# the class
1226
attr[attrname] = fixscope(attribute, new_function)
1227
# Is this a D-Bus method?
1228
elif getattr(attribute, "_dbus_is_method", False):
1229
# Create a new, but exactly alike, function
1230
# object. Decorate it to be a new D-Bus method
1231
# with the alternate D-Bus interface name. Add it
1232
# to the class.
1233
attr[attrname] = (
1234
dbus.service.method(
1235
alt_interface,
1236
attribute._dbus_in_signature,
1237
attribute._dbus_out_signature)
1238
(types.FunctionType(attribute.func_code,
1239
attribute.func_globals,
1240
attribute.func_name,
1241
attribute.func_defaults,
1242
attribute.func_closure)))
1243
# Copy annotations, if any
1244
try:
1245
attr[attrname]._dbus_annotations = dict(
1246
attribute._dbus_annotations)
1247
except AttributeError:
1248
pass
1249
# Is this a D-Bus property?
1250
elif getattr(attribute, "_dbus_is_property", False):
1251
# Create a new, but exactly alike, function
1252
# object, and decorate it to be a new D-Bus
1253
# property with the alternate D-Bus interface
1254
# name. Add it to the class.
1255
attr[attrname] = (dbus_service_property(
1256
alt_interface, attribute._dbus_signature,
1257
attribute._dbus_access,
1258
attribute._dbus_get_args_options
1259
["byte_arrays"])
1260
(types.FunctionType(
1261
attribute.func_code,
1262
attribute.func_globals,
1263
attribute.func_name,
1264
attribute.func_defaults,
1265
attribute.func_closure)))
1266
# Copy annotations, if any
1267
try:
1268
attr[attrname]._dbus_annotations = dict(
1269
attribute._dbus_annotations)
1270
except AttributeError:
1271
pass
1272
# Is this a D-Bus interface?
1273
elif getattr(attribute, "_dbus_is_interface", False):
1274
# Create a new, but exactly alike, function
1275
# object. Decorate it to be a new D-Bus interface
1276
# with the alternate D-Bus interface name. Add it
1277
# to the class.
1278
attr[attrname] = (
1279
dbus_interface_annotations(alt_interface)
1280
(types.FunctionType(attribute.func_code,
1281
attribute.func_globals,
1282
attribute.func_name,
1283
attribute.func_defaults,
1284
attribute.func_closure)))
1285
if deprecate:
1286
# Deprecate all alternate interfaces
1287
iname="_AlternateDBusNames_interface_annotation{}"
1288
for interface_name in interface_names:
1289
1290
@dbus_interface_annotations(interface_name)
1291
def func(self):
1292
return { "org.freedesktop.DBus.Deprecated":
1293
"true" }
1294
# Find an unused name
1295
for aname in (iname.format(i)
1296
for i in itertools.count()):
1297
if aname not in attr:
1298
attr[aname] = func
1299
break
1300
if interface_names:
1301
# Replace the class with a new subclass of it with
1302
# methods, signals, etc. as created above.
1303
cls = type(b"{}Alternate".format(cls.__name__),
1304
(cls, ), attr)
1305
return cls
1306
1307
return wrapper
1308
1309
1310
@alternate_dbus_interfaces({"se.recompile.Mandos":
1311
"se.bsnet.fukt.Mandos"})
712
1312
class ClientDBus(Client, DBusObjectWithProperties):
713
1313
"""A Client class using D-Bus
714
1314
718
1318
"""
719
1319
720
1320
runtime_expansions = (Client.runtime_expansions
721
+ (u"dbus_object_path",))
1321
+ ("dbus_object_path", ))
1322
1323
_interface = "se.recompile.Mandos.Client"
722
1324
723
1325
# dbus.service.Object doesn't use super(), so we can't either.
724
1326
725
1327
def __init__(self, bus = None, *args, **kwargs):
726
self._approvals_pending = 0
727
1328
self.bus = bus
728
1329
Client.__init__(self, *args, **kwargs)
729
1330
# Only now, when this client is initialized, can it show up on
730
1331
# the D-Bus
731
client_object_name = unicode(self.name).translate(
732
{ord(u"."): ord(u"_"),
733
ord(u"-"): ord(u"_")})
734
self.dbus_object_path = (dbus.ObjectPath
735
(u"/clients/" + client_object_name))
1332
client_object_name = str(self.name).translate(
1333
{ord("."): ord("_"),
1334
ord("-"): ord("_")})
1335
self.dbus_object_path = dbus.ObjectPath(
1336
"/clients/" + client_object_name)
736
1337
DBusObjectWithProperties.__init__(self, self.bus,
737
1338
self.dbus_object_path)
738
739
def _get_approvals_pending(self):
740
return self._approvals_pending
741
def _set_approvals_pending(self, value):
742
old_value = self._approvals_pending
743
self._approvals_pending = value
744
bval = bool(value)
745
if (hasattr(self, "dbus_object_path")
746
and bval is not bool(old_value)):
747
dbus_bool = dbus.Boolean(bval, variant_level=1)
748
self.PropertyChanged(dbus.String(u"ApprovalPending"),
749
dbus_bool)
750
751
approvals_pending = property(_get_approvals_pending,
752
_set_approvals_pending)
753
del _get_approvals_pending, _set_approvals_pending
754
755
@staticmethod
756
def _datetime_to_dbus(dt, variant_level=0):
757
"""Convert a UTC datetime.datetime() to a D-Bus type."""
758
return dbus.String(dt.isoformat(),
759
variant_level=variant_level)
760
761
def enable(self):
762
oldstate = getattr(self, u"enabled", False)
763
r = Client.enable(self)
764
if oldstate != self.enabled:
765
# Emit D-Bus signals
766
self.PropertyChanged(dbus.String(u"Enabled"),
767
dbus.Boolean(True, variant_level=1))
768
self.PropertyChanged(
769
dbus.String(u"LastEnabled"),
770
self._datetime_to_dbus(self.last_enabled,
771
variant_level=1))
772
return r
773
774
def disable(self, quiet = False):
775
oldstate = getattr(self, u"enabled", False)
776
r = Client.disable(self, quiet=quiet)
777
if not quiet and oldstate != self.enabled:
778
# Emit D-Bus signal
779
self.PropertyChanged(dbus.String(u"Enabled"),
780
dbus.Boolean(False, variant_level=1))
781
return r
1339
1340
def notifychangeproperty(transform_func, dbus_name,
1341
type_func=lambda x: x,
1342
variant_level=1,
1343
invalidate_only=False,
1344
_interface=_interface):
1345
""" Modify a variable so that it's a property which announces
1346
its changes to DBus.
1347
1348
transform_fun: Function that takes a value and a variant_level
1349
and transforms it to a D-Bus type.
1350
dbus_name: D-Bus name of the variable
1351
type_func: Function that transform the value before sending it
1352
to the D-Bus. Default: no transform
1353
variant_level: D-Bus variant level. Default: 1
1354
"""
1355
attrname = "_{}".format(dbus_name)
1356
1357
def setter(self, value):
1358
if hasattr(self, "dbus_object_path"):
1359
if (not hasattr(self, attrname) or
1360
type_func(getattr(self, attrname, None))
1361
!= type_func(value)):
1362
if invalidate_only:
1363
self.PropertiesChanged(
1364
_interface, dbus.Dictionary(),
1365
dbus.Array((dbus_name, )))
1366
else:
1367
dbus_value = transform_func(
1368
type_func(value),
1369
variant_level = variant_level)
1370
self.PropertyChanged(dbus.String(dbus_name),
1371
dbus_value)
1372
self.PropertiesChanged(
1373
_interface,
1374
dbus.Dictionary({ dbus.String(dbus_name):
1375
dbus_value }),
1376
dbus.Array())
1377
setattr(self, attrname, value)
1378
1379
return property(lambda self: getattr(self, attrname), setter)
1380
1381
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1382
approvals_pending = notifychangeproperty(dbus.Boolean,
1383
"ApprovalPending",
1384
type_func = bool)
1385
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1386
last_enabled = notifychangeproperty(datetime_to_dbus,
1387
"LastEnabled")
1388
checker = notifychangeproperty(
1389
dbus.Boolean, "CheckerRunning",
1390
type_func = lambda checker: checker is not None)
1391
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1392
"LastCheckedOK")
1393
last_checker_status = notifychangeproperty(dbus.Int16,
1394
"LastCheckerStatus")
1395
last_approval_request = notifychangeproperty(
1396
datetime_to_dbus, "LastApprovalRequest")
1397
approved_by_default = notifychangeproperty(dbus.Boolean,
1398
"ApprovedByDefault")
1399
approval_delay = notifychangeproperty(
1400
dbus.UInt64, "ApprovalDelay",
1401
type_func = lambda td: td.total_seconds() * 1000)
1402
approval_duration = notifychangeproperty(
1403
dbus.UInt64, "ApprovalDuration",
1404
type_func = lambda td: td.total_seconds() * 1000)
1405
host = notifychangeproperty(dbus.String, "Host")
1406
timeout = notifychangeproperty(
1407
dbus.UInt64, "Timeout",
1408
type_func = lambda td: td.total_seconds() * 1000)
1409
extended_timeout = notifychangeproperty(
1410
dbus.UInt64, "ExtendedTimeout",
1411
type_func = lambda td: td.total_seconds() * 1000)
1412
interval = notifychangeproperty(
1413
dbus.UInt64, "Interval",
1414
type_func = lambda td: td.total_seconds() * 1000)
1415
checker_command = notifychangeproperty(dbus.String, "Checker")
1416
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1417
invalidate_only=True)
1418
1419
del notifychangeproperty
782
1420
783
1421
def __del__(self, *args, **kwargs):
784
1422
try:
785
1423
self.remove_from_connection()
786
1424
except LookupError:
787
1425
pass
788
if hasattr(DBusObjectWithProperties, u"__del__"):
1426
if hasattr(DBusObjectWithProperties, "__del__"):
789
1427
DBusObjectWithProperties.__del__(self, *args, **kwargs)
790
1428
Client.__del__(self, *args, **kwargs)
791
1429
792
def checker_callback(self, pid, condition, command,
793
*args, **kwargs):
794
self.checker_callback_tag = None
795
self.checker = None
796
# Emit D-Bus signal
797
self.PropertyChanged(dbus.String(u"CheckerRunning"),
798
dbus.Boolean(False, variant_level=1))
799
if os.WIFEXITED(condition):
800
exitstatus = os.WEXITSTATUS(condition)
1430
def checker_callback(self, source, condition,
1431
connection, command, *args, **kwargs):
1432
ret = Client.checker_callback(self, source, condition,
1433
connection, command, *args,
1434
**kwargs)
1435
exitstatus = self.last_checker_status
1436
if exitstatus >= 0:
801
1437
# Emit D-Bus signal
802
1438
self.CheckerCompleted(dbus.Int16(exitstatus),
803
dbus.Int64(condition),
1439
# This is specific to GNU libC
1440
dbus.Int64(exitstatus << 8),
804
1441
dbus.String(command))
805
1442
else:
806
1443
# Emit D-Bus signal
807
1444
self.CheckerCompleted(dbus.Int16(-1),
808
dbus.Int64(condition),
1445
dbus.Int64(
1446
# This is specific to GNU libC
1447
(exitstatus << 8)
1448
| self.last_checker_signal),
809
1449
dbus.String(command))
810
811
return Client.checker_callback(self, pid, condition, command,
812
*args, **kwargs)
813
814
def checked_ok(self, *args, **kwargs):
815
r = Client.checked_ok(self, *args, **kwargs)
816
# Emit D-Bus signal
817
self.PropertyChanged(
818
dbus.String(u"LastCheckedOK"),
819
(self._datetime_to_dbus(self.last_checked_ok,
820
variant_level=1)))
821
return r
822
823
def need_approval(self, *args, **kwargs):
824
r = Client.need_approval(self, *args, **kwargs)
825
# Emit D-Bus signal
826
self.PropertyChanged(
827
dbus.String(u"LastApprovalRequest"),
828
(self._datetime_to_dbus(self.last_approval_request,
829
variant_level=1)))
830
return r
1450
return ret
831
1451
832
1452
def start_checker(self, *args, **kwargs):
833
old_checker = self.checker
834
if self.checker is not None:
835
old_checker_pid = self.checker.pid
836
else:
837
old_checker_pid = None
1453
old_checker_pid = getattr(self.checker, "pid", None)
838
1454
r = Client.start_checker(self, *args, **kwargs)
839
1455
# Only if new checker process was started
840
1456
if (self.checker is not None
841
1457
and old_checker_pid != self.checker.pid):
842
1458
# Emit D-Bus signal
843
1459
self.CheckerStarted(self.current_checker_command)
844
self.PropertyChanged(
845
dbus.String(u"CheckerRunning"),
846
dbus.Boolean(True, variant_level=1))
847
1460
return r
848
1461
849
def stop_checker(self, *args, **kwargs):
850
old_checker = getattr(self, u"checker", None)
851
r = Client.stop_checker(self, *args, **kwargs)
852
if (old_checker is not None
853
and getattr(self, u"checker", None) is None):
854
self.PropertyChanged(dbus.String(u"CheckerRunning"),
855
dbus.Boolean(False, variant_level=1))
856
return r
857
858
1462
def _reset_approved(self):
859
self._approved = None
1463
self.approved = None
860
1464
return False
861
1465
862
1466
def approve(self, value=True):
1467
self.approved = value
1468
gobject.timeout_add(int(self.approval_duration.total_seconds()
1469
* 1000), self._reset_approved)
863
1470
self.send_changedstate()
864
self._approved = value
865
gobject.timeout_add(self._timedelta_to_milliseconds
866
(self.approval_duration),
867
self._reset_approved)
868
869
1471
870
1472
## D-Bus methods, signals & properties
871
_interface = u"se.bsnet.fukt.Mandos.Client"
1473
1474
## Interfaces
872
1475
873
1476
## Signals
874
1477
875
1478
# CheckerCompleted - signal
876
@dbus.service.signal(_interface, signature=u"nxs")
1479
@dbus.service.signal(_interface, signature="nxs")
877
1480
def CheckerCompleted(self, exitcode, waitstatus, command):
878
1481
"D-Bus signal"
879
1482
pass
880
1483
881
1484
# CheckerStarted - signal
882
@dbus.service.signal(_interface, signature=u"s")
1485
@dbus.service.signal(_interface, signature="s")
883
1486
def CheckerStarted(self, command):
884
1487
"D-Bus signal"
885
1488
pass
886
1489
887
1490
# PropertyChanged - signal
888
@dbus.service.signal(_interface, signature=u"sv")
1491
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1492
@dbus.service.signal(_interface, signature="sv")
889
1493
def PropertyChanged(self, property, value):
890
1494
"D-Bus signal"
891
1495
pass
900
1504
pass
901
1505
902
1506
# Rejected - signal
903
@dbus.service.signal(_interface, signature=u"s")
1507
@dbus.service.signal(_interface, signature="s")
904
1508
def Rejected(self, reason):
905
1509
"D-Bus signal"
906
1510
pass
907
1511
908
1512
# NeedApproval - signal
909
@dbus.service.signal(_interface, signature=u"tb")
1513
@dbus.service.signal(_interface, signature="tb")
910
1514
def NeedApproval(self, timeout, default):
911
1515
"D-Bus signal"
912
1516
return self.need_approval()
914
1518
## Methods
915
1519
916
1520
# Approve - method
917
@dbus.service.method(_interface, in_signature=u"b")
1521
@dbus.service.method(_interface, in_signature="b")
918
1522
def Approve(self, value):
919
1523
self.approve(value)
920
1524
921
1525
# CheckedOK - method
922
1526
@dbus.service.method(_interface)
923
1527
def CheckedOK(self):
924
return self.checked_ok()
1528
self.checked_ok()
925
1529
926
1530
# Enable - method
1531
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
927
1532
@dbus.service.method(_interface)
928
1533
def Enable(self):
929
1534
"D-Bus method"
930
1535
self.enable()
931
1536
932
1537
# StartChecker - method
1538
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
933
1539
@dbus.service.method(_interface)
934
1540
def StartChecker(self):
935
1541
"D-Bus method"
936
1542
self.start_checker()
937
1543
938
1544
# Disable - method
1545
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
939
1546
@dbus.service.method(_interface)
940
1547
def Disable(self):
941
1548
"D-Bus method"
942
1549
self.disable()
943
1550
944
1551
# StopChecker - method
1552
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
945
1553
@dbus.service.method(_interface)
946
1554
def StopChecker(self):
947
1555
self.stop_checker()
949
1557
## Properties
950
1558
951
1559
# ApprovalPending - property
952
@dbus_service_property(_interface, signature=u"b", access=u"read")
1560
@dbus_service_property(_interface, signature="b", access="read")
953
1561
def ApprovalPending_dbus_property(self):
954
1562
return dbus.Boolean(bool(self.approvals_pending))
955
1563
956
1564
# ApprovedByDefault - property
957
@dbus_service_property(_interface, signature=u"b",
958
access=u"readwrite")
1565
@dbus_service_property(_interface,
1566
signature="b",
1567
access="readwrite")
959
1568
def ApprovedByDefault_dbus_property(self, value=None):
960
1569
if value is None: # get
961
1570
return dbus.Boolean(self.approved_by_default)
962
1571
self.approved_by_default = bool(value)
963
# Emit D-Bus signal
964
self.PropertyChanged(dbus.String(u"ApprovedByDefault"),
965
dbus.Boolean(value, variant_level=1))
966
1572
967
1573
# ApprovalDelay - property
968
@dbus_service_property(_interface, signature=u"t",
969
access=u"readwrite")
1574
@dbus_service_property(_interface,
1575
signature="t",
1576
access="readwrite")
970
1577
def ApprovalDelay_dbus_property(self, value=None):
971
1578
if value is None: # get
972
return dbus.UInt64(self.approval_delay_milliseconds())
1579
return dbus.UInt64(self.approval_delay.total_seconds()
1580
* 1000)
973
1581
self.approval_delay = datetime.timedelta(0, 0, 0, value)
974
# Emit D-Bus signal
975
self.PropertyChanged(dbus.String(u"ApprovalDelay"),
976
dbus.UInt64(value, variant_level=1))
977
1582
978
1583
# ApprovalDuration - property
979
@dbus_service_property(_interface, signature=u"t",
980
access=u"readwrite")
1584
@dbus_service_property(_interface,
1585
signature="t",
1586
access="readwrite")
981
1587
def ApprovalDuration_dbus_property(self, value=None):
982
1588
if value is None: # get
983
return dbus.UInt64(self._timedelta_to_milliseconds(
984
self.approval_duration))
1589
return dbus.UInt64(self.approval_duration.total_seconds()
1590
* 1000)
985
1591
self.approval_duration = datetime.timedelta(0, 0, 0, value)
986
# Emit D-Bus signal
987
self.PropertyChanged(dbus.String(u"ApprovalDuration"),
988
dbus.UInt64(value, variant_level=1))
989
1592
990
1593
# Name - property
991
@dbus_service_property(_interface, signature=u"s", access=u"read")
1594
@dbus_annotations(
1595
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1596
@dbus_service_property(_interface, signature="s", access="read")
992
1597
def Name_dbus_property(self):
993
1598
return dbus.String(self.name)
994
1599
995
1600
# Fingerprint - property
996
@dbus_service_property(_interface, signature=u"s", access=u"read")
1601
@dbus_annotations(
1602
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1603
@dbus_service_property(_interface, signature="s", access="read")
997
1604
def Fingerprint_dbus_property(self):
998
1605
return dbus.String(self.fingerprint)
999
1606
1000
1607
# Host - property
1001
@dbus_service_property(_interface, signature=u"s",
1002
access=u"readwrite")
1608
@dbus_service_property(_interface,
1609
signature="s",
1610
access="readwrite")
1003
1611
def Host_dbus_property(self, value=None):
1004
1612
if value is None: # get
1005
1613
return dbus.String(self.host)
1006
self.host = value
1007
# Emit D-Bus signal
1008
self.PropertyChanged(dbus.String(u"Host"),
1009
dbus.String(value, variant_level=1))
1614
self.host = str(value)
1010
1615
1011
1616
# Created - property
1012
@dbus_service_property(_interface, signature=u"s", access=u"read")
1617
@dbus_annotations(
1618
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1619
@dbus_service_property(_interface, signature="s", access="read")
1013
1620
def Created_dbus_property(self):
1014
return dbus.String(self._datetime_to_dbus(self.created))
1621
return datetime_to_dbus(self.created)
1015
1622
1016
1623
# LastEnabled - property
1017
@dbus_service_property(_interface, signature=u"s", access=u"read")
1624
@dbus_service_property(_interface, signature="s", access="read")
1018
1625
def LastEnabled_dbus_property(self):
1019
if self.last_enabled is None:
1020
return dbus.String(u"")
1021
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1626
return datetime_to_dbus(self.last_enabled)
1022
1627
1023
1628
# Enabled - property
1024
@dbus_service_property(_interface, signature=u"b",
1025
access=u"readwrite")
1629
@dbus_service_property(_interface,
1630
signature="b",
1631
access="readwrite")
1026
1632
def Enabled_dbus_property(self, value=None):
1027
1633
if value is None: # get
1028
1634
return dbus.Boolean(self.enabled)
1032
1638
self.disable()
1033
1639
1034
1640
# LastCheckedOK - property
1035
@dbus_service_property(_interface, signature=u"s",
1036
access=u"readwrite")
1641
@dbus_service_property(_interface,
1642
signature="s",
1643
access="readwrite")
1037
1644
def LastCheckedOK_dbus_property(self, value=None):
1038
1645
if value is not None:
1039
1646
self.checked_ok()
1040
1647
return
1041
if self.last_checked_ok is None:
1042
return dbus.String(u"")
1043
return dbus.String(self._datetime_to_dbus(self
1044
.last_checked_ok))
1648
return datetime_to_dbus(self.last_checked_ok)
1649
1650
# LastCheckerStatus - property
1651
@dbus_service_property(_interface, signature="n", access="read")
1652
def LastCheckerStatus_dbus_property(self):
1653
return dbus.Int16(self.last_checker_status)
1654
1655
# Expires - property
1656
@dbus_service_property(_interface, signature="s", access="read")
1657
def Expires_dbus_property(self):
1658
return datetime_to_dbus(self.expires)
1045
1659
1046
1660
# LastApprovalRequest - property
1047
@dbus_service_property(_interface, signature=u"s", access=u"read")
1661
@dbus_service_property(_interface, signature="s", access="read")
1048
1662
def LastApprovalRequest_dbus_property(self):
1049
if self.last_approval_request is None:
1050
return dbus.String(u"")
1051
return dbus.String(self.
1052
_datetime_to_dbus(self
1053
.last_approval_request))
1663
return datetime_to_dbus(self.last_approval_request)
1054
1664
1055
1665
# Timeout - property
1056
@dbus_service_property(_interface, signature=u"t",
1057
access=u"readwrite")
1666
@dbus_service_property(_interface,
1667
signature="t",
1668
access="readwrite")
1058
1669
def Timeout_dbus_property(self, value=None):
1059
1670
if value is None: # get
1060
return dbus.UInt64(self.timeout_milliseconds())
1671
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1672
old_timeout = self.timeout
1061
1673
self.timeout = datetime.timedelta(0, 0, 0, value)
1062
# Emit D-Bus signal
1063
self.PropertyChanged(dbus.String(u"Timeout"),
1064
dbus.UInt64(value, variant_level=1))
1065
if getattr(self, u"disable_initiator_tag", None) is None:
1066
return
1067
# Reschedule timeout
1068
gobject.source_remove(self.disable_initiator_tag)
1069
self.disable_initiator_tag = None
1070
time_to_die = (self.
1071
_timedelta_to_milliseconds((self
1072
.last_checked_ok
1073
+ self.timeout)
1074
- datetime.datetime
1075
.utcnow()))
1076
if time_to_die <= 0:
1077
# The timeout has passed
1078
self.disable()
1079
else:
1080
self.disable_initiator_tag = (gobject.timeout_add
1081
(time_to_die, self.disable))
1674
# Reschedule disabling
1675
if self.enabled:
1676
now = datetime.datetime.utcnow()
1677
self.expires += self.timeout - old_timeout
1678
if self.expires <= now:
1679
# The timeout has passed
1680
self.disable()
1681
else:
1682
if (getattr(self, "disable_initiator_tag", None)
1683
is None):
1684
return
1685
gobject.source_remove(self.disable_initiator_tag)
1686
self.disable_initiator_tag = gobject.timeout_add(
1687
int((self.expires - now).total_seconds() * 1000),
1688
self.disable)
1689
1690
# ExtendedTimeout - property
1691
@dbus_service_property(_interface,
1692
signature="t",
1693
access="readwrite")
1694
def ExtendedTimeout_dbus_property(self, value=None):
1695
if value is None: # get
1696
return dbus.UInt64(self.extended_timeout.total_seconds()
1697
* 1000)
1698
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1082
1699
1083
1700
# Interval - property
1084
@dbus_service_property(_interface, signature=u"t",
1085
access=u"readwrite")
1701
@dbus_service_property(_interface,
1702
signature="t",
1703
access="readwrite")
1086
1704
def Interval_dbus_property(self, value=None):
1087
1705
if value is None: # get
1088
return dbus.UInt64(self.interval_milliseconds())
1706
return dbus.UInt64(self.interval.total_seconds() * 1000)
1089
1707
self.interval = datetime.timedelta(0, 0, 0, value)
1090
# Emit D-Bus signal
1091
self.PropertyChanged(dbus.String(u"Interval"),
1092
dbus.UInt64(value, variant_level=1))
1093
if getattr(self, u"checker_initiator_tag", None) is None:
1708
if getattr(self, "checker_initiator_tag", None) is None:
1094
1709
return
1095
# Reschedule checker run
1096
gobject.source_remove(self.checker_initiator_tag)
1097
self.checker_initiator_tag = (gobject.timeout_add
1098
(value, self.start_checker))
1099
self.start_checker() # Start one now, too
1100
1710
if self.enabled:
1711
# Reschedule checker run
1712
gobject.source_remove(self.checker_initiator_tag)
1713
self.checker_initiator_tag = gobject.timeout_add(
1714
value, self.start_checker)
1715
self.start_checker() # Start one now, too
1716
1101
1717
# Checker - property
1102
@dbus_service_property(_interface, signature=u"s",
1103
access=u"readwrite")
1718
@dbus_service_property(_interface,
1719
signature="s",
1720
access="readwrite")
1104
1721
def Checker_dbus_property(self, value=None):
1105
1722
if value is None: # get
1106
1723
return dbus.String(self.checker_command)
1107
self.checker_command = value
1108
# Emit D-Bus signal
1109
self.PropertyChanged(dbus.String(u"Checker"),
1110
dbus.String(self.checker_command,
1111
variant_level=1))
1724
self.checker_command = str(value)
1112
1725
1113
1726
# CheckerRunning - property
1114
@dbus_service_property(_interface, signature=u"b",
1115
access=u"readwrite")
1727
@dbus_service_property(_interface,
1728
signature="b",
1729
access="readwrite")
1116
1730
def CheckerRunning_dbus_property(self, value=None):
1117
1731
if value is None: # get
1118
1732
return dbus.Boolean(self.checker is not None)
1122
1736
self.stop_checker()
1123
1737
1124
1738
# ObjectPath - property
1125
@dbus_service_property(_interface, signature=u"o", access=u"read")
1739
@dbus_annotations(
1740
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
1741
"org.freedesktop.DBus.Deprecated": "true"})
1742
@dbus_service_property(_interface, signature="o", access="read")
1126
1743
def ObjectPath_dbus_property(self):
1127
1744
return self.dbus_object_path # is already a dbus.ObjectPath
1128
1745
1129
1746
# Secret = property
1130
@dbus_service_property(_interface, signature=u"ay",
1131
access=u"write", byte_arrays=True)
1747
@dbus_annotations(
1748
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
1749
"invalidates"})
1750
@dbus_service_property(_interface,
1751
signature="ay",
1752
access="write",
1753
byte_arrays=True)
1132
1754
def Secret_dbus_property(self, value):
1133
self.secret = str(value)
1755
self.secret = bytes(value)
1134
1756
1135
1757
del _interface
1136
1758
1140
1762
self._pipe = child_pipe
1141
1763
self._pipe.send(('init', fpr, address))
1142
1764
if not self._pipe.recv():
1143
raise KeyError()
1144
1765
raise KeyError(fpr)
1766
1145
1767
def __getattribute__(self, name):
1146
if(name == '_pipe'):
1768
if name == '_pipe':
1147
1769
return super(ProxyClient, self).__getattribute__(name)
1148
1770
self._pipe.send(('getattr', name))
1149
1771
data = self._pipe.recv()
1150
1772
if data[0] == 'data':
1151
1773
return data[1]
1152
1774
if data[0] == 'function':
1775
1153
1776
def func(*args, **kwargs):
1154
1777
self._pipe.send(('funcall', name, args, kwargs))
1155
1778
return self._pipe.recv()[1]
1779
1156
1780
return func
1157
1781
1158
1782
def __setattr__(self, name, value):
1159
if(name == '_pipe'):
1783
if name == '_pipe':
1160
1784
return super(ProxyClient, self).__setattr__(name, value)
1161
1785
self._pipe.send(('setattr', name, value))
1162
1786
1169
1793
1170
1794
def handle(self):
1171
1795
with contextlib.closing(self.server.child_pipe) as child_pipe:
1172
logger.info(u"TCP connection from: %s",
1173
unicode(self.client_address))
1174
logger.debug(u"Pipe FD: %d",
1796
logger.info("TCP connection from: %s",
1797
str(self.client_address))
1798
logger.debug("Pipe FD: %d",
1175
1799
self.server.child_pipe.fileno())
1176
1177
session = (gnutls.connection
1178
.ClientSession(self.request,
1179
gnutls.connection
1180
.X509Credentials()))
1181
1800
1801
session = gnutls.connection.ClientSession(
1802
self.request, gnutls.connection .X509Credentials())
1803
1182
1804
# Note: gnutls.connection.X509Credentials is really a
1183
1805
# generic GnuTLS certificate credentials object so long as
1184
1806
# no X.509 keys are added to it. Therefore, we can use it
1185
1807
# here despite using OpenPGP certificates.
1186
1187
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1188
# u"+AES-256-CBC", u"+SHA1",
1189
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1190
# u"+DHE-DSS"))
1808
1809
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1810
# "+AES-256-CBC", "+SHA1",
1811
# "+COMP-NULL", "+CTYPE-OPENPGP",
1812
# "+DHE-DSS"))
1191
1813
# Use a fallback default, since this MUST be set.
1192
1814
priority = self.server.gnutls_priority
1193
1815
if priority is None:
1194
priority = u"NORMAL"
1195
(gnutls.library.functions
1196
.gnutls_priority_set_direct(session._c_object,
1197
priority, None))
1198
1816
priority = "NORMAL"
1817
gnutls.library.functions.gnutls_priority_set_direct(
1818
session._c_object, priority, None)
1819
1199
1820
# Start communication using the Mandos protocol
1200
1821
# Get protocol number
1201
1822
line = self.request.makefile().readline()
1202
logger.debug(u"Protocol version: %r", line)
1823
logger.debug("Protocol version: %r", line)
1203
1824
try:
1204
1825
if int(line.strip().split()[0]) > 1:
1205
raise RuntimeError
1206
except (ValueError, IndexError, RuntimeError), error:
1207
logger.error(u"Unknown protocol version: %s", error)
1826
raise RuntimeError(line)
1827
except (ValueError, IndexError, RuntimeError) as error:
1828
logger.error("Unknown protocol version: %s", error)
1208
1829
return
1209
1830
1210
1831
# Start GnuTLS connection
1211
1832
try:
1212
1833
session.handshake()
1213
except gnutls.errors.GNUTLSError, error:
1214
logger.warning(u"Handshake failed: %s", error)
1834
except gnutls.errors.GNUTLSError as error:
1835
logger.warning("Handshake failed: %s", error)
1215
1836
# Do not run session.bye() here: the session is not
1216
1837
# established. Just abandon the request.
1217
1838
return
1218
logger.debug(u"Handshake succeeded")
1219
1839
logger.debug("Handshake succeeded")
1840
1220
1841
approval_required = False
1221
1842
try:
1222
1843
try:
1223
fpr = self.fingerprint(self.peer_certificate
1224
(session))
1225
except (TypeError, gnutls.errors.GNUTLSError), error:
1226
logger.warning(u"Bad certificate: %s", error)
1844
fpr = self.fingerprint(
1845
self.peer_certificate(session))
1846
except (TypeError,
1847
gnutls.errors.GNUTLSError) as error:
1848
logger.warning("Bad certificate: %s", error)
1227
1849
return
1228
logger.debug(u"Fingerprint: %s", fpr)
1229
1850
logger.debug("Fingerprint: %s", fpr)
1851
1230
1852
try:
1231
1853
client = ProxyClient(child_pipe, fpr,
1232
1854
self.client_address)
1240
1862
1241
1863
while True:
1242
1864
if not client.enabled:
1243
logger.warning(u"Client %s is disabled",
1244
client.name)
1865
logger.info("Client %s is disabled",
1866
client.name)
1245
1867
if self.server.use_dbus:
1246
1868
# Emit D-Bus signal
1247
client.Rejected("Disabled")
1869
client.Rejected("Disabled")
1248
1870
return
1249
1871
1250
if client._approved or not client.approval_delay:
1872
if client.approved or not client.approval_delay:
1251
1873
#We are approved or approval is disabled
1252
1874
break
1253
elif client._approved is None:
1254
logger.info(u"Client %s needs approval",
1875
elif client.approved is None:
1876
logger.info("Client %s needs approval",
1255
1877
client.name)
1256
1878
if self.server.use_dbus:
1257
1879
# Emit D-Bus signal
1258
1880
client.NeedApproval(
1259
client.approval_delay_milliseconds(),
1260
client.approved_by_default)
1881
client.approval_delay.total_seconds()
1882
* 1000, client.approved_by_default)
1261
1883
else:
1262
logger.warning(u"Client %s was not approved",
1884
logger.warning("Client %s was not approved",
1263
1885
client.name)
1264
1886
if self.server.use_dbus:
1265
1887
# Emit D-Bus signal
1267
1889
return
1268
1890
1269
1891
#wait until timeout or approved
1270
#x = float(client._timedelta_to_milliseconds(delay))
1271
1892
time = datetime.datetime.now()
1272
1893
client.changedstate.acquire()
1273
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1894
client.changedstate.wait(delay.total_seconds())
1274
1895
client.changedstate.release()
1275
1896
time2 = datetime.datetime.now()
1276
1897
if (time2 - time) >= delay:
1291
1912
while sent_size < len(client.secret):
1292
1913
try:
1293
1914
sent = session.send(client.secret[sent_size:])
1294
except (gnutls.errors.GNUTLSError), error:
1295
logger.warning("gnutls send failed")
1915
except gnutls.errors.GNUTLSError as error:
1916
logger.warning("gnutls send failed",
1917
exc_info=error)
1296
1918
return
1297
logger.debug(u"Sent: %d, remaining: %d",
1298
sent, len(client.secret)
1299
- (sent_size + sent))
1919
logger.debug("Sent: %d, remaining: %d", sent,
1920
len(client.secret) - (sent_size
1921
+ sent))
1300
1922
sent_size += sent
1301
1302
logger.info(u"Sending secret to %s", client.name)
1303
# bump the timeout as if seen
1304
client.checked_ok()
1923
1924
logger.info("Sending secret to %s", client.name)
1925
# bump the timeout using extended_timeout
1926
client.bump_timeout(client.extended_timeout)
1305
1927
if self.server.use_dbus:
1306
1928
# Emit D-Bus signal
1307
1929
client.GotSecret()
1311
1933
client.approvals_pending -= 1
1312
1934
try:
1313
1935
session.bye()
1314
except (gnutls.errors.GNUTLSError), error:
1315
logger.warning("GnuTLS bye failed")
1936
except gnutls.errors.GNUTLSError as error:
1937
logger.warning("GnuTLS bye failed",
1938
exc_info=error)
1316
1939
1317
1940
@staticmethod
1318
1941
def peer_certificate(session):
1319
1942
"Return the peer's OpenPGP certificate as a bytestring"
1320
1943
# If not an OpenPGP certificate...
1321
if (gnutls.library.functions
1322
.gnutls_certificate_type_get(session._c_object)
1944
if (gnutls.library.functions.gnutls_certificate_type_get(
1945
session._c_object)
1323
1946
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1324
1947
# ...do the normal thing
1325
1948
return session.peer_certificate
1328
1951
.gnutls_certificate_get_peers
1329
1952
(session._c_object, ctypes.byref(list_size)))
1330
1953
if not bool(cert_list) and list_size.value != 0:
1331
raise gnutls.errors.GNUTLSError(u"error getting peer"
1332
u" certificate")
1954
raise gnutls.errors.GNUTLSError("error getting peer"
1955
" certificate")
1333
1956
if list_size.value == 0:
1334
1957
return None
1335
1958
cert = cert_list[0]
1339
1962
def fingerprint(openpgp):
1340
1963
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1341
1964
# New GnuTLS "datum" with the OpenPGP public key
1342
datum = (gnutls.library.types
1343
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1344
ctypes.POINTER
1345
(ctypes.c_ubyte)),
1346
ctypes.c_uint(len(openpgp))))
1965
datum = gnutls.library.types.gnutls_datum_t(
1966
ctypes.cast(ctypes.c_char_p(openpgp),
1967
ctypes.POINTER(ctypes.c_ubyte)),
1968
ctypes.c_uint(len(openpgp)))
1347
1969
# New empty GnuTLS certificate
1348
1970
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1349
(gnutls.library.functions
1350
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
1971
gnutls.library.functions.gnutls_openpgp_crt_init(
1972
ctypes.byref(crt))
1351
1973
# Import the OpenPGP public key into the certificate
1352
(gnutls.library.functions
1353
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1354
gnutls.library.constants
1355
.GNUTLS_OPENPGP_FMT_RAW))
1974
gnutls.library.functions.gnutls_openpgp_crt_import(
1975
crt, ctypes.byref(datum),
1976
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
1356
1977
# Verify the self signature in the key
1357
1978
crtverify = ctypes.c_uint()
1358
(gnutls.library.functions
1359
.gnutls_openpgp_crt_verify_self(crt, 0,
1360
ctypes.byref(crtverify)))
1979
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
1980
crt, 0, ctypes.byref(crtverify))
1361
1981
if crtverify.value != 0:
1362
1982
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1363
raise (gnutls.errors.CertificateSecurityError
1364
(u"Verify failed"))
1983
raise gnutls.errors.CertificateSecurityError(
1984
"Verify failed")
1365
1985
# New buffer for the fingerprint
1366
1986
buf = ctypes.create_string_buffer(20)
1367
1987
buf_len = ctypes.c_size_t()
1368
1988
# Get the fingerprint from the certificate into the buffer
1369
(gnutls.library.functions
1370
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1371
ctypes.byref(buf_len)))
1989
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
1990
crt, ctypes.byref(buf), ctypes.byref(buf_len))
1372
1991
# Deinit the certificate
1373
1992
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1374
1993
# Convert the buffer to a Python bytestring
1375
1994
fpr = ctypes.string_at(buf, buf_len.value)
1376
1995
# Convert the bytestring to hexadecimal notation
1377
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
1996
hex_fpr = binascii.hexlify(fpr).upper()
1378
1997
return hex_fpr
1379
1998
1380
1999
1381
2000
class MultiprocessingMixIn(object):
1382
2001
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2002
1383
2003
def sub_process_main(self, request, address):
1384
2004
try:
1385
2005
self.finish_request(request, address)
1386
except:
2006
except Exception:
1387
2007
self.handle_error(request, address)
1388
2008
self.close_request(request)
1389
2009
1390
2010
def process_request(self, request, address):
1391
2011
"""Start a new process to process the request."""
1392
multiprocessing.Process(target = self.sub_process_main,
1393
args = (request, address)).start()
2012
proc = multiprocessing.Process(target = self.sub_process_main,
2013
args = (request, address))
2014
proc.start()
2015
return proc
2016
1394
2017
1395
2018
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1396
2019
""" adds a pipe to the MixIn """
2020
1397
2021
def process_request(self, request, client_address):
1398
2022
"""Overrides and wraps the original process_request().
1399
2023
1400
2024
This function creates a new pipe in self.pipe
1401
2025
"""
1402
2026
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1403
1404
super(MultiprocessingMixInWithPipe,
1405
self).process_request(request, client_address)
2027
2028
proc = MultiprocessingMixIn.process_request(self, request,
2029
client_address)
1406
2030
self.child_pipe.close()
1407
self.add_pipe(parent_pipe)
1408
1409
def add_pipe(self, parent_pipe):
2031
self.add_pipe(parent_pipe, proc)
2032
2033
def add_pipe(self, parent_pipe, proc):
1410
2034
"""Dummy function; override as necessary"""
1411
raise NotImplementedError
2035
raise NotImplementedError()
2036
1412
2037
1413
2038
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1414
2039
socketserver.TCPServer, object):
1419
2044
interface: None or a network interface name (string)
1420
2045
use_ipv6: Boolean; to use IPv6 or not
1421
2046
"""
2047
1422
2048
def __init__(self, server_address, RequestHandlerClass,
1423
interface=None, use_ipv6=True):
2049
interface=None,
2050
use_ipv6=True,
2051
socketfd=None):
2052
"""If socketfd is set, use that file descriptor instead of
2053
creating a new one with socket.socket().
2054
"""
1424
2055
self.interface = interface
1425
2056
if use_ipv6:
1426
2057
self.address_family = socket.AF_INET6
2058
if socketfd is not None:
2059
# Save the file descriptor
2060
self.socketfd = socketfd
2061
# Save the original socket.socket() function
2062
self.socket_socket = socket.socket
2063
# To implement --socket, we monkey patch socket.socket.
2064
#
2065
# (When socketserver.TCPServer is a new-style class, we
2066
# could make self.socket into a property instead of monkey
2067
# patching socket.socket.)
2068
#
2069
# Create a one-time-only replacement for socket.socket()
2070
@functools.wraps(socket.socket)
2071
def socket_wrapper(*args, **kwargs):
2072
# Restore original function so subsequent calls are
2073
# not affected.
2074
socket.socket = self.socket_socket
2075
del self.socket_socket
2076
# This time only, return a new socket object from the
2077
# saved file descriptor.
2078
return socket.fromfd(self.socketfd, *args, **kwargs)
2079
# Replace socket.socket() function with wrapper
2080
socket.socket = socket_wrapper
2081
# The socketserver.TCPServer.__init__ will call
2082
# socket.socket(), which might be our replacement,
2083
# socket_wrapper(), if socketfd was set.
1427
2084
socketserver.TCPServer.__init__(self, server_address,
1428
2085
RequestHandlerClass)
2086
1429
2087
def server_bind(self):
1430
2088
"""This overrides the normal server_bind() function
1431
2089
to bind to an interface if one was specified, and also NOT to
1432
2090
bind to an address or port if they were not specified."""
1433
2091
if self.interface is not None:
1434
2092
if SO_BINDTODEVICE is None:
1435
logger.error(u"SO_BINDTODEVICE does not exist;"
1436
u" cannot bind to interface %s",
2093
logger.error("SO_BINDTODEVICE does not exist;"
2094
" cannot bind to interface %s",
1437
2095
self.interface)
1438
2096
else:
1439
2097
try:
1440
self.socket.setsockopt(socket.SOL_SOCKET,
1441
SO_BINDTODEVICE,
1442
str(self.interface
1443
+ u'\0'))
1444
except socket.error, error:
1445
if error[0] == errno.EPERM:
1446
logger.error(u"No permission to"
1447
u" bind to interface %s",
1448
self.interface)
1449
elif error[0] == errno.ENOPROTOOPT:
1450
logger.error(u"SO_BINDTODEVICE not available;"
1451
u" cannot bind to interface %s",
1452
self.interface)
2098
self.socket.setsockopt(
2099
socket.SOL_SOCKET, SO_BINDTODEVICE,
2100
(self.interface + "\0").encode("utf-8"))
2101
except socket.error as error:
2102
if error.errno == errno.EPERM:
2103
logger.error("No permission to bind to"
2104
" interface %s", self.interface)
2105
elif error.errno == errno.ENOPROTOOPT:
2106
logger.error("SO_BINDTODEVICE not available;"
2107
" cannot bind to interface %s",
2108
self.interface)
2109
elif error.errno == errno.ENODEV:
2110
logger.error("Interface %s does not exist,"
2111
" cannot bind", self.interface)
1453
2112
else:
1454
2113
raise
1455
2114
# Only bind(2) the socket if we really need to.
1456
2115
if self.server_address[0] or self.server_address[1]:
1457
2116
if not self.server_address[0]:
1458
2117
if self.address_family == socket.AF_INET6:
1459
any_address = u"::" # in6addr_any
2118
any_address = "::" # in6addr_any
1460
2119
else:
1461
any_address = socket.INADDR_ANY
2120
any_address = "0.0.0.0" # INADDR_ANY
1462
2121
self.server_address = (any_address,
1463
2122
self.server_address[1])
1464
2123
elif not self.server_address[1]:
1465
self.server_address = (self.server_address[0],
1466
0)
2124
self.server_address = (self.server_address[0], 0)
1467
2125
# if self.interface:
1468
2126
# self.server_address = (self.server_address[0],
1469
2127
# 0, # port
1483
2141
1484
2142
Assumes a gobject.MainLoop event loop.
1485
2143
"""
2144
1486
2145
def __init__(self, server_address, RequestHandlerClass,
1487
interface=None, use_ipv6=True, clients=None,
1488
gnutls_priority=None, use_dbus=True):
2146
interface=None,
2147
use_ipv6=True,
2148
clients=None,
2149
gnutls_priority=None,
2150
use_dbus=True,
2151
socketfd=None):
1489
2152
self.enabled = False
1490
2153
self.clients = clients
1491
2154
if self.clients is None:
1492
self.clients = set()
2155
self.clients = {}
1493
2156
self.use_dbus = use_dbus
1494
2157
self.gnutls_priority = gnutls_priority
1495
2158
IPv6_TCPServer.__init__(self, server_address,
1496
2159
RequestHandlerClass,
1497
2160
interface = interface,
1498
use_ipv6 = use_ipv6)
2161
use_ipv6 = use_ipv6,
2162
socketfd = socketfd)
2163
1499
2164
def server_activate(self):
1500
2165
if self.enabled:
1501
2166
return socketserver.TCPServer.server_activate(self)
2167
1502
2168
def enable(self):
1503
2169
self.enabled = True
1504
def add_pipe(self, parent_pipe):
2170
2171
def add_pipe(self, parent_pipe, proc):
1505
2172
# Call "handle_ipc" for both data and EOF events
1506
gobject.io_add_watch(parent_pipe.fileno(),
1507
gobject.IO_IN | gobject.IO_HUP,
1508
functools.partial(self.handle_ipc,
1509
parent_pipe = parent_pipe))
1510
1511
def handle_ipc(self, source, condition, parent_pipe=None,
2173
gobject.io_add_watch(
2174
parent_pipe.fileno(),
2175
gobject.IO_IN | gobject.IO_HUP,
2176
functools.partial(self.handle_ipc,
2177
parent_pipe = parent_pipe,
2178
proc = proc))
2179
2180
def handle_ipc(self, source, condition,
2181
parent_pipe=None,
2182
proc = None,
1512
2183
client_object=None):
1513
condition_names = {
1514
gobject.IO_IN: u"IN", # There is data to read.
1515
gobject.IO_OUT: u"OUT", # Data can be written (without
1516
# blocking).
1517
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1518
gobject.IO_ERR: u"ERR", # Error condition.
1519
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1520
# broken, usually for pipes and
1521
# sockets).
1522
}
1523
conditions_string = ' | '.join(name
1524
for cond, name in
1525
condition_names.iteritems()
1526
if cond & condition)
1527
# error or the other end of multiprocessing.Pipe has closed
1528
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2184
# error, or the other end of multiprocessing.Pipe has closed
2185
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2186
# Wait for other process to exit
2187
proc.join()
1529
2188
return False
1530
2189
1531
2190
# Read a request from the child
1536
2195
fpr = request[1]
1537
2196
address = request[2]
1538
2197
1539
for c in self.clients:
2198
for c in self.clients.itervalues():
1540
2199
if c.fingerprint == fpr:
1541
2200
client = c
1542
2201
break
1543
2202
else:
1544
logger.warning(u"Client not found for fingerprint: %s, ad"
1545
u"dress: %s", fpr, address)
2203
logger.info("Client not found for fingerprint: %s, ad"
2204
"dress: %s", fpr, address)
1546
2205
if self.use_dbus:
1547
2206
# Emit D-Bus signal
1548
mandos_dbus_service.ClientNotFound(fpr, address[0])
2207
mandos_dbus_service.ClientNotFound(fpr,
2208
address[0])
1549
2209
parent_pipe.send(False)
1550
2210
return False
1551
2211
1552
gobject.io_add_watch(parent_pipe.fileno(),
1553
gobject.IO_IN | gobject.IO_HUP,
1554
functools.partial(self.handle_ipc,
1555
parent_pipe = parent_pipe,
1556
client_object = client))
2212
gobject.io_add_watch(
2213
parent_pipe.fileno(),
2214
gobject.IO_IN | gobject.IO_HUP,
2215
functools.partial(self.handle_ipc,
2216
parent_pipe = parent_pipe,
2217
proc = proc,
2218
client_object = client))
1557
2219
parent_pipe.send(True)
1558
# remove the old hook in favor of the new above hook on same fileno
2220
# remove the old hook in favor of the new above hook on
2221
# same fileno
1559
2222
return False
1560
2223
if command == 'funcall':
1561
2224
funcname = request[1]
1562
2225
args = request[2]
1563
2226
kwargs = request[3]
1564
2227
1565
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1566
2228
parent_pipe.send(('data', getattr(client_object,
2229
funcname)(*args,
2230
**kwargs)))
2231
1567
2232
if command == 'getattr':
1568
2233
attrname = request[1]
1569
if callable(client_object.__getattribute__(attrname)):
1570
parent_pipe.send(('function',))
2234
if isinstance(client_object.__getattribute__(attrname),
2235
collections.Callable):
2236
parent_pipe.send(('function', ))
1571
2237
else:
1572
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2238
parent_pipe.send((
2239
'data', client_object.__getattribute__(attrname)))
1573
2240
1574
2241
if command == 'setattr':
1575
2242
attrname = request[1]
1576
2243
value = request[2]
1577
2244
setattr(client_object, attrname, value)
1578
2245
1579
2246
return True
1580
2247
1581
2248
2249
def rfc3339_duration_to_delta(duration):
2250
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2251
2252
>>> rfc3339_duration_to_delta("P7D")
2253
datetime.timedelta(7)
2254
>>> rfc3339_duration_to_delta("PT60S")
2255
datetime.timedelta(0, 60)
2256
>>> rfc3339_duration_to_delta("PT60M")
2257
datetime.timedelta(0, 3600)
2258
>>> rfc3339_duration_to_delta("PT24H")
2259
datetime.timedelta(1)
2260
>>> rfc3339_duration_to_delta("P1W")
2261
datetime.timedelta(7)
2262
>>> rfc3339_duration_to_delta("PT5M30S")
2263
datetime.timedelta(0, 330)
2264
>>> rfc3339_duration_to_delta("P1DT3M20S")
2265
datetime.timedelta(1, 200)
2266
"""
2267
2268
# Parsing an RFC 3339 duration with regular expressions is not
2269
# possible - there would have to be multiple places for the same
2270
# values, like seconds. The current code, while more esoteric, is
2271
# cleaner without depending on a parsing library. If Python had a
2272
# built-in library for parsing we would use it, but we'd like to
2273
# avoid excessive use of external libraries.
2274
2275
# New type for defining tokens, syntax, and semantics all-in-one
2276
Token = collections.namedtuple("Token", (
2277
"regexp", # To match token; if "value" is not None, must have
2278
# a "group" containing digits
2279
"value", # datetime.timedelta or None
2280
"followers")) # Tokens valid after this token
2281
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2282
# the "duration" ABNF definition in RFC 3339, Appendix A.
2283
token_end = Token(re.compile(r"$"), None, frozenset())
2284
token_second = Token(re.compile(r"(\d+)S"),
2285
datetime.timedelta(seconds=1),
2286
frozenset((token_end, )))
2287
token_minute = Token(re.compile(r"(\d+)M"),
2288
datetime.timedelta(minutes=1),
2289
frozenset((token_second, token_end)))
2290
token_hour = Token(re.compile(r"(\d+)H"),
2291
datetime.timedelta(hours=1),
2292
frozenset((token_minute, token_end)))
2293
token_time = Token(re.compile(r"T"),
2294
None,
2295
frozenset((token_hour, token_minute,
2296
token_second)))
2297
token_day = Token(re.compile(r"(\d+)D"),
2298
datetime.timedelta(days=1),
2299
frozenset((token_time, token_end)))
2300
token_month = Token(re.compile(r"(\d+)M"),
2301
datetime.timedelta(weeks=4),
2302
frozenset((token_day, token_end)))
2303
token_year = Token(re.compile(r"(\d+)Y"),
2304
datetime.timedelta(weeks=52),
2305
frozenset((token_month, token_end)))
2306
token_week = Token(re.compile(r"(\d+)W"),
2307
datetime.timedelta(weeks=1),
2308
frozenset((token_end, )))
2309
token_duration = Token(re.compile(r"P"), None,
2310
frozenset((token_year, token_month,
2311
token_day, token_time,
2312
token_week)))
2313
# Define starting values
2314
value = datetime.timedelta() # Value so far
2315
found_token = None
2316
followers = frozenset((token_duration, )) # Following valid tokens
2317
s = duration # String left to parse
2318
# Loop until end token is found
2319
while found_token is not token_end:
2320
# Search for any currently valid tokens
2321
for token in followers:
2322
match = token.regexp.match(s)
2323
if match is not None:
2324
# Token found
2325
if token.value is not None:
2326
# Value found, parse digits
2327
factor = int(match.group(1), 10)
2328
# Add to value so far
2329
value += factor * token.value
2330
# Strip token from string
2331
s = token.regexp.sub("", s, 1)
2332
# Go to found token
2333
found_token = token
2334
# Set valid next tokens
2335
followers = found_token.followers
2336
break
2337
else:
2338
# No currently valid tokens were found
2339
raise ValueError("Invalid RFC 3339 duration: {!r}"
2340
.format(duration))
2341
# End token found
2342
return value
2343
2344
1582
2345
def string_to_delta(interval):
1583
2346
"""Parse a string and return a datetime.timedelta
1584
2347
1585
>>> string_to_delta(u'7d')
2348
>>> string_to_delta('7d')
1586
2349
datetime.timedelta(7)
1587
>>> string_to_delta(u'60s')
2350
>>> string_to_delta('60s')
1588
2351
datetime.timedelta(0, 60)
1589
>>> string_to_delta(u'60m')
2352
>>> string_to_delta('60m')
1590
2353
datetime.timedelta(0, 3600)
1591
>>> string_to_delta(u'24h')
2354
>>> string_to_delta('24h')
1592
2355
datetime.timedelta(1)
1593
>>> string_to_delta(u'1w')
2356
>>> string_to_delta('1w')
1594
2357
datetime.timedelta(7)
1595
>>> string_to_delta(u'5m 30s')
2358
>>> string_to_delta('5m 30s')
1596
2359
datetime.timedelta(0, 330)
1597
2360
"""
2361
2362
try:
2363
return rfc3339_duration_to_delta(interval)
2364
except ValueError:
2365
pass
2366
1598
2367
timevalue = datetime.timedelta(0)
1599
2368
for s in interval.split():
1600
2369
try:
1601
suffix = unicode(s[-1])
2370
suffix = s[-1]
1602
2371
value = int(s[:-1])
1603
if suffix == u"d":
2372
if suffix == "d":
1604
2373
delta = datetime.timedelta(value)
1605
elif suffix == u"s":
2374
elif suffix == "s":
1606
2375
delta = datetime.timedelta(0, value)
1607
elif suffix == u"m":
2376
elif suffix == "m":
1608
2377
delta = datetime.timedelta(0, 0, 0, 0, value)
1609
elif suffix == u"h":
2378
elif suffix == "h":
1610
2379
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1611
elif suffix == u"w":
2380
elif suffix == "w":
1612
2381
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1613
2382
else:
1614
raise ValueError(u"Unknown suffix %r" % suffix)
1615
except (ValueError, IndexError), e:
2383
raise ValueError("Unknown suffix {!r}".format(suffix))
2384
except IndexError as e:
1616
2385
raise ValueError(*(e.args))
1617
2386
timevalue += delta
1618
2387
return timevalue
1619
2388
1620
2389
1621
def if_nametoindex(interface):
1622
"""Call the C function if_nametoindex(), or equivalent
1623
1624
Note: This function cannot accept a unicode string."""
1625
global if_nametoindex
1626
try:
1627
if_nametoindex = (ctypes.cdll.LoadLibrary
1628
(ctypes.util.find_library(u"c"))
1629
.if_nametoindex)
1630
except (OSError, AttributeError):
1631
logger.warning(u"Doing if_nametoindex the hard way")
1632
def if_nametoindex(interface):
1633
"Get an interface index the hard way, i.e. using fcntl()"
1634
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1635
with contextlib.closing(socket.socket()) as s:
1636
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1637
struct.pack(str(u"16s16x"),
1638
interface))
1639
interface_index = struct.unpack(str(u"I"),
1640
ifreq[16:20])[0]
1641
return interface_index
1642
return if_nametoindex(interface)
1643
1644
1645
2390
def daemon(nochdir = False, noclose = False):
1646
2391
"""See daemon(3). Standard BSD Unix function.
1647
2392
1650
2395
sys.exit()
1651
2396
os.setsid()
1652
2397
if not nochdir:
1653
os.chdir(u"/")
2398
os.chdir("/")
1654
2399
if os.fork():
1655
2400
sys.exit()
1656
2401
if not noclose:
1657
2402
# Close all standard open file descriptors
1658
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2403
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1659
2404
if not stat.S_ISCHR(os.fstat(null).st_mode):
1660
2405
raise OSError(errno.ENODEV,
1661
u"%s not a character device"
1662
% os.path.devnull)
2406
"{} not a character device"
2407
.format(os.devnull))
1663
2408
os.dup2(null, sys.stdin.fileno())
1664
2409
os.dup2(null, sys.stdout.fileno())
1665
2410
os.dup2(null, sys.stderr.fileno())
1672
2417
##################################################################
1673
2418
# Parsing of options, both command line and config file
1674
2419
1675
parser = optparse.OptionParser(version = "%%prog %s" % version)
1676
parser.add_option("-i", u"--interface", type=u"string",
1677
metavar="IF", help=u"Bind to interface IF")
1678
parser.add_option("-a", u"--address", type=u"string",
1679
help=u"Address to listen for requests on")
1680
parser.add_option("-p", u"--port", type=u"int",
1681
help=u"Port number to receive requests on")
1682
parser.add_option("--check", action=u"store_true",
1683
help=u"Run self-test")
1684
parser.add_option("--debug", action=u"store_true",
1685
help=u"Debug mode; run in foreground and log to"
1686
u" terminal")
1687
parser.add_option("--debuglevel", type=u"string", metavar="LEVEL",
1688
help=u"Debug level for stdout output")
1689
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1690
u" priority string (see GnuTLS documentation)")
1691
parser.add_option("--servicename", type=u"string",
1692
metavar=u"NAME", help=u"Zeroconf service name")
1693
parser.add_option("--configdir", type=u"string",
1694
default=u"/etc/mandos", metavar=u"DIR",
1695
help=u"Directory to search for configuration"
1696
u" files")
1697
parser.add_option("--no-dbus", action=u"store_false",
1698
dest=u"use_dbus", help=u"Do not provide D-Bus"
1699
u" system bus interface")
1700
parser.add_option("--no-ipv6", action=u"store_false",
1701
dest=u"use_ipv6", help=u"Do not use IPv6")
1702
options = parser.parse_args()[0]
2420
parser = argparse.ArgumentParser()
2421
parser.add_argument("-v", "--version", action="version",
2422
version = "%(prog)s {}".format(version),
2423
help="show version number and exit")
2424
parser.add_argument("-i", "--interface", metavar="IF",
2425
help="Bind to interface IF")
2426
parser.add_argument("-a", "--address",
2427
help="Address to listen for requests on")
2428
parser.add_argument("-p", "--port", type=int,
2429
help="Port number to receive requests on")
2430
parser.add_argument("--check", action="store_true",
2431
help="Run self-test")
2432
parser.add_argument("--debug", action="store_true",
2433
help="Debug mode; run in foreground and log"
2434
" to terminal", default=None)
2435
parser.add_argument("--debuglevel", metavar="LEVEL",
2436
help="Debug level for stdout output")
2437
parser.add_argument("--priority", help="GnuTLS"
2438
" priority string (see GnuTLS documentation)")
2439
parser.add_argument("--servicename",
2440
metavar="NAME", help="Zeroconf service name")
2441
parser.add_argument("--configdir",
2442
default="/etc/mandos", metavar="DIR",
2443
help="Directory to search for configuration"
2444
" files")
2445
parser.add_argument("--no-dbus", action="store_false",
2446
dest="use_dbus", help="Do not provide D-Bus"
2447
" system bus interface", default=None)
2448
parser.add_argument("--no-ipv6", action="store_false",
2449
dest="use_ipv6", help="Do not use IPv6",
2450
default=None)
2451
parser.add_argument("--no-restore", action="store_false",
2452
dest="restore", help="Do not restore stored"
2453
" state", default=None)
2454
parser.add_argument("--socket", type=int,
2455
help="Specify a file descriptor to a network"
2456
" socket to use instead of creating one")
2457
parser.add_argument("--statedir", metavar="DIR",
2458
help="Directory to save/restore state in")
2459
parser.add_argument("--foreground", action="store_true",
2460
help="Run in foreground", default=None)
2461
parser.add_argument("--no-zeroconf", action="store_false",
2462
dest="zeroconf", help="Do not use Zeroconf",
2463
default=None)
2464
2465
options = parser.parse_args()
1703
2466
1704
2467
if options.check:
1705
2468
import doctest
1706
doctest.testmod()
1707
sys.exit()
2469
fail_count, test_count = doctest.testmod()
2470
sys.exit(os.EX_OK if fail_count == 0 else 1)
1708
2471
1709
2472
# Default values for config file for server-global settings
1710
server_defaults = { u"interface": u"",
1711
u"address": u"",
1712
u"port": u"",
1713
u"debug": u"False",
1714
u"priority":
1715
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1716
u"servicename": u"Mandos",
1717
u"use_dbus": u"True",
1718
u"use_ipv6": u"True",
1719
u"debuglevel": u"",
1720
}
2473
server_defaults = { "interface": "",
2474
"address": "",
2475
"port": "",
2476
"debug": "False",
2477
"priority":
2478
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2479
":+SIGN-DSA-SHA256",
2480
"servicename": "Mandos",
2481
"use_dbus": "True",
2482
"use_ipv6": "True",
2483
"debuglevel": "",
2484
"restore": "True",
2485
"socket": "",
2486
"statedir": "/var/lib/mandos",
2487
"foreground": "False",
2488
"zeroconf": "True",
2489
}
1721
2490
1722
2491
# Parse config file for server-global settings
1723
2492
server_config = configparser.SafeConfigParser(server_defaults)
1724
2493
del server_defaults
1725
server_config.read(os.path.join(options.configdir,
1726
u"mandos.conf"))
2494
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1727
2495
# Convert the SafeConfigParser object to a dict
1728
2496
server_settings = server_config.defaults()
1729
2497
# Use the appropriate methods on the non-string config options
1730
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1731
server_settings[option] = server_config.getboolean(u"DEFAULT",
2498
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2499
server_settings[option] = server_config.getboolean("DEFAULT",
1732
2500
option)
1733
2501
if server_settings["port"]:
1734
server_settings["port"] = server_config.getint(u"DEFAULT",
1735
u"port")
2502
server_settings["port"] = server_config.getint("DEFAULT",
2503
"port")
2504
if server_settings["socket"]:
2505
server_settings["socket"] = server_config.getint("DEFAULT",
2506
"socket")
2507
# Later, stdin will, and stdout and stderr might, be dup'ed
2508
# over with an opened os.devnull. But we don't want this to
2509
# happen with a supplied network socket.
2510
if 0 <= server_settings["socket"] <= 2:
2511
server_settings["socket"] = os.dup(server_settings
2512
["socket"])
1736
2513
del server_config
1737
2514
1738
2515
# Override the settings from the config file with command line
1739
2516
# options, if set.
1740
for option in (u"interface", u"address", u"port", u"debug",
1741
u"priority", u"servicename", u"configdir",
1742
u"use_dbus", u"use_ipv6", u"debuglevel"):
2517
for option in ("interface", "address", "port", "debug",
2518
"priority", "servicename", "configdir", "use_dbus",
2519
"use_ipv6", "debuglevel", "restore", "statedir",
2520
"socket", "foreground", "zeroconf"):
1743
2521
value = getattr(options, option)
1744
2522
if value is not None:
1745
2523
server_settings[option] = value
1746
2524
del options
1747
2525
# Force all strings to be unicode
1748
2526
for option in server_settings.keys():
1749
if type(server_settings[option]) is str:
1750
server_settings[option] = unicode(server_settings[option])
2527
if isinstance(server_settings[option], bytes):
2528
server_settings[option] = (server_settings[option]
2529
.decode("utf-8"))
2530
# Force all boolean options to be boolean
2531
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2532
"foreground", "zeroconf"):
2533
server_settings[option] = bool(server_settings[option])
2534
# Debug implies foreground
2535
if server_settings["debug"]:
2536
server_settings["foreground"] = True
1751
2537
# Now we have our good server settings in "server_settings"
1752
2538
1753
2539
##################################################################
1754
2540
2541
if (not server_settings["zeroconf"]
2542
and not (server_settings["port"]
2543
or server_settings["socket"] != "")):
2544
parser.error("Needs port or socket to work without Zeroconf")
2545
1755
2546
# For convenience
1756
debug = server_settings[u"debug"]
1757
debuglevel = server_settings[u"debuglevel"]
1758
use_dbus = server_settings[u"use_dbus"]
1759
use_ipv6 = server_settings[u"use_ipv6"]
1760
1761
if server_settings[u"servicename"] != u"Mandos":
1762
syslogger.setFormatter(logging.Formatter
1763
(u'Mandos (%s) [%%(process)d]:'
1764
u' %%(levelname)s: %%(message)s'
1765
% server_settings[u"servicename"]))
2547
debug = server_settings["debug"]
2548
debuglevel = server_settings["debuglevel"]
2549
use_dbus = server_settings["use_dbus"]
2550
use_ipv6 = server_settings["use_ipv6"]
2551
stored_state_path = os.path.join(server_settings["statedir"],
2552
stored_state_file)
2553
foreground = server_settings["foreground"]
2554
zeroconf = server_settings["zeroconf"]
2555
2556
if debug:
2557
initlogger(debug, logging.DEBUG)
2558
else:
2559
if not debuglevel:
2560
initlogger(debug)
2561
else:
2562
level = getattr(logging, debuglevel.upper())
2563
initlogger(debug, level)
2564
2565
if server_settings["servicename"] != "Mandos":
2566
syslogger.setFormatter(
2567
logging.Formatter('Mandos ({}) [%(process)d]:'
2568
' %(levelname)s: %(message)s'.format(
2569
server_settings["servicename"])))
1766
2570
1767
2571
# Parse config file with clients
1768
client_defaults = { u"timeout": u"1h",
1769
u"interval": u"5m",
1770
u"checker": u"fping -q -- %%(host)s",
1771
u"host": u"",
1772
u"approval_delay": u"0s",
1773
u"approval_duration": u"1s",
1774
}
1775
client_config = configparser.SafeConfigParser(client_defaults)
1776
client_config.read(os.path.join(server_settings[u"configdir"],
1777
u"clients.conf"))
2572
client_config = configparser.SafeConfigParser(Client
2573
.client_defaults)
2574
client_config.read(os.path.join(server_settings["configdir"],
2575
"clients.conf"))
1778
2576
1779
2577
global mandos_dbus_service
1780
2578
mandos_dbus_service = None
1781
2579
1782
tcp_server = MandosServer((server_settings[u"address"],
1783
server_settings[u"port"]),
1784
ClientHandler,
1785
interface=(server_settings[u"interface"]
1786
or None),
1787
use_ipv6=use_ipv6,
1788
gnutls_priority=
1789
server_settings[u"priority"],
1790
use_dbus=use_dbus)
1791
if not debug:
1792
pidfilename = u"/var/run/mandos.pid"
2580
socketfd = None
2581
if server_settings["socket"] != "":
2582
socketfd = server_settings["socket"]
2583
tcp_server = MandosServer(
2584
(server_settings["address"], server_settings["port"]),
2585
ClientHandler,
2586
interface=(server_settings["interface"] or None),
2587
use_ipv6=use_ipv6,
2588
gnutls_priority=server_settings["priority"],
2589
use_dbus=use_dbus,
2590
socketfd=socketfd)
2591
if not foreground:
2592
pidfilename = "/run/mandos.pid"
2593
if not os.path.isdir("/run/."):
2594
pidfilename = "/var/run/mandos.pid"
2595
pidfile = None
1793
2596
try:
1794
pidfile = open(pidfilename, u"w")
1795
except IOError:
1796
logger.error(u"Could not open file %r", pidfilename)
2597
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2598
except IOError as e:
2599
logger.error("Could not open file %r", pidfilename,
2600
exc_info=e)
1797
2601
1798
try:
1799
uid = pwd.getpwnam(u"_mandos").pw_uid
1800
gid = pwd.getpwnam(u"_mandos").pw_gid
1801
except KeyError:
2602
for name in ("_mandos", "mandos", "nobody"):
1802
2603
try:
1803
uid = pwd.getpwnam(u"mandos").pw_uid
1804
gid = pwd.getpwnam(u"mandos").pw_gid
2604
uid = pwd.getpwnam(name).pw_uid
2605
gid = pwd.getpwnam(name).pw_gid
2606
break
1805
2607
except KeyError:
1806
try:
1807
uid = pwd.getpwnam(u"nobody").pw_uid
1808
gid = pwd.getpwnam(u"nobody").pw_gid
1809
except KeyError:
1810
uid = 65534
1811
gid = 65534
2608
continue
2609
else:
2610
uid = 65534
2611
gid = 65534
1812
2612
try:
1813
2613
os.setgid(gid)
1814
2614
os.setuid(uid)
1815
except OSError, error:
1816
if error[0] != errno.EPERM:
1817
raise error
2615
except OSError as error:
2616
if error.errno != errno.EPERM:
2617
raise
1818
2618
1819
if not debug and not debuglevel:
1820
syslogger.setLevel(logging.WARNING)
1821
console.setLevel(logging.WARNING)
1822
if debuglevel:
1823
level = getattr(logging, debuglevel.upper())
1824
syslogger.setLevel(level)
1825
console.setLevel(level)
1826
1827
2619
if debug:
1828
2620
# Enable all possible GnuTLS debugging
1829
2621
1833
2625
1834
2626
@gnutls.library.types.gnutls_log_func
1835
2627
def debug_gnutls(level, string):
1836
logger.debug(u"GnuTLS: %s", string[:-1])
2628
logger.debug("GnuTLS: %s", string[:-1])
1837
2629
1838
(gnutls.library.functions
1839
.gnutls_global_set_log_function(debug_gnutls))
2630
gnutls.library.functions.gnutls_global_set_log_function(
2631
debug_gnutls)
1840
2632
1841
2633
# Redirect stdin so all checkers get /dev/null
1842
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2634
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1843
2635
os.dup2(null, sys.stdin.fileno())
1844
2636
if null > 2:
1845
2637
os.close(null)
1846
else:
1847
# No console logging
1848
logger.removeHandler(console)
1849
2638
1850
2639
# Need to fork before connecting to D-Bus
1851
if not debug:
2640
if not foreground:
1852
2641
# Close all input and output, do double fork, etc.
1853
2642
daemon()
1854
2643
2644
# multiprocessing will use threads, so before we use gobject we
2645
# need to inform gobject that threads will be used.
2646
gobject.threads_init()
2647
1855
2648
global main_loop
1856
2649
# From the Avahi example code
1857
DBusGMainLoop(set_as_default=True )
2650
DBusGMainLoop(set_as_default=True)
1858
2651
main_loop = gobject.MainLoop()
1859
2652
bus = dbus.SystemBus()
1860
2653
# End of Avahi example code
1861
2654
if use_dbus:
1862
2655
try:
1863
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
1864
bus, do_not_queue=True)
1865
except dbus.exceptions.NameExistsException, e:
1866
logger.error(unicode(e) + u", disabling D-Bus")
2656
bus_name = dbus.service.BusName("se.recompile.Mandos",
2657
bus,
2658
do_not_queue=True)
2659
old_bus_name = dbus.service.BusName(
2660
"se.bsnet.fukt.Mandos", bus,
2661
do_not_queue=True)
2662
except dbus.exceptions.DBusException as e:
2663
logger.error("Disabling D-Bus:", exc_info=e)
1867
2664
use_dbus = False
1868
server_settings[u"use_dbus"] = False
2665
server_settings["use_dbus"] = False
1869
2666
tcp_server.use_dbus = False
1870
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1871
service = AvahiService(name = server_settings[u"servicename"],
1872
servicetype = u"_mandos._tcp",
1873
protocol = protocol, bus = bus)
1874
if server_settings["interface"]:
1875
service.interface = (if_nametoindex
1876
(str(server_settings[u"interface"])))
2667
if zeroconf:
2668
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2669
service = AvahiServiceToSyslog(
2670
name = server_settings["servicename"],
2671
servicetype = "_mandos._tcp",
2672
protocol = protocol,
2673
bus = bus)
2674
if server_settings["interface"]:
2675
service.interface = if_nametoindex(
2676
server_settings["interface"].encode("utf-8"))
1877
2677
1878
2678
global multiprocessing_manager
1879
2679
multiprocessing_manager = multiprocessing.Manager()
1881
2681
client_class = Client
1882
2682
if use_dbus:
1883
2683
client_class = functools.partial(ClientDBus, bus = bus)
1884
def client_config_items(config, section):
1885
special_settings = {
1886
"approved_by_default":
1887
lambda: config.getboolean(section,
1888
"approved_by_default"),
1889
}
1890
for name, value in config.items(section):
2684
2685
client_settings = Client.config_parser(client_config)
2686
old_client_settings = {}
2687
clients_data = {}
2688
2689
# This is used to redirect stdout and stderr for checker processes
2690
global wnull
2691
wnull = open(os.devnull, "w") # A writable /dev/null
2692
# Only used if server is running in foreground but not in debug
2693
# mode
2694
if debug or not foreground:
2695
wnull.close()
2696
2697
# Get client data and settings from last running state.
2698
if server_settings["restore"]:
2699
try:
2700
with open(stored_state_path, "rb") as stored_state:
2701
clients_data, old_client_settings = pickle.load(
2702
stored_state)
2703
os.remove(stored_state_path)
2704
except IOError as e:
2705
if e.errno == errno.ENOENT:
2706
logger.warning("Could not load persistent state:"
2707
" {}".format(os.strerror(e.errno)))
2708
else:
2709
logger.critical("Could not load persistent state:",
2710
exc_info=e)
2711
raise
2712
except EOFError as e:
2713
logger.warning("Could not load persistent state: "
2714
"EOFError:",
2715
exc_info=e)
2716
2717
with PGPEngine() as pgp:
2718
for client_name, client in clients_data.items():
2719
# Skip removed clients
2720
if client_name not in client_settings:
2721
continue
2722
2723
# Decide which value to use after restoring saved state.
2724
# We have three different values: Old config file,
2725
# new config file, and saved state.
2726
# New config value takes precedence if it differs from old
2727
# config value, otherwise use saved state.
2728
for name, value in client_settings[client_name].items():
2729
try:
2730
# For each value in new config, check if it
2731
# differs from the old config value (Except for
2732
# the "secret" attribute)
2733
if (name != "secret"
2734
and (value !=
2735
old_client_settings[client_name][name])):
2736
client[name] = value
2737
except KeyError:
2738
pass
2739
2740
# Clients who has passed its expire date can still be
2741
# enabled if its last checker was successful. A Client
2742
# whose checker succeeded before we stored its state is
2743
# assumed to have successfully run all checkers during
2744
# downtime.
2745
if client["enabled"]:
2746
if datetime.datetime.utcnow() >= client["expires"]:
2747
if not client["last_checked_ok"]:
2748
logger.warning(
2749
"disabling client {} - Client never "
2750
"performed a successful checker".format(
2751
client_name))
2752
client["enabled"] = False
2753
elif client["last_checker_status"] != 0:
2754
logger.warning(
2755
"disabling client {} - Client last"
2756
" checker failed with error code"
2757
" {}".format(
2758
client_name,
2759
client["last_checker_status"]))
2760
client["enabled"] = False
2761
else:
2762
client["expires"] = (
2763
datetime.datetime.utcnow()
2764
+ client["timeout"])
2765
logger.debug("Last checker succeeded,"
2766
" keeping {} enabled".format(
2767
client_name))
1891
2768
try:
1892
yield (name, special_settings[name]())
1893
except KeyError:
1894
yield (name, value)
1895
1896
tcp_server.clients.update(set(
1897
client_class(name = section,
1898
config= dict(client_config_items(
1899
client_config, section)))
1900
for section in client_config.sections()))
2769
client["secret"] = pgp.decrypt(
2770
client["encrypted_secret"],
2771
client_settings[client_name]["secret"])
2772
except PGPError:
2773
# If decryption fails, we use secret from new settings
2774
logger.debug("Failed to decrypt {} old secret".format(
2775
client_name))
2776
client["secret"] = (client_settings[client_name]
2777
["secret"])
2778
2779
# Add/remove clients based on new changes made to config
2780
for client_name in (set(old_client_settings)
2781
- set(client_settings)):
2782
del clients_data[client_name]
2783
for client_name in (set(client_settings)
2784
- set(old_client_settings)):
2785
clients_data[client_name] = client_settings[client_name]
2786
2787
# Create all client objects
2788
for client_name, client in clients_data.items():
2789
tcp_server.clients[client_name] = client_class(
2790
name = client_name,
2791
settings = client,
2792
server_settings = server_settings)
2793
1901
2794
if not tcp_server.clients:
1902
logger.warning(u"No clients defined")
1903
1904
if not debug:
1905
try:
1906
with pidfile:
1907
pid = os.getpid()
1908
pidfile.write(str(pid) + "\n")
1909
del pidfile
1910
except IOError:
1911
logger.error(u"Could not write to file %r with PID %d",
1912
pidfilename, pid)
1913
except NameError:
1914
# "pidfile" was never created
1915
pass
2795
logger.warning("No clients defined")
2796
2797
if not foreground:
2798
if pidfile is not None:
2799
pid = os.getpid()
2800
try:
2801
with pidfile:
2802
print(pid, file=pidfile)
2803
except IOError:
2804
logger.error("Could not write to file %r with PID %d",
2805
pidfilename, pid)
2806
del pidfile
1916
2807
del pidfilename
1917
1918
signal.signal(signal.SIGINT, signal.SIG_IGN)
1919
2808
1920
2809
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1921
2810
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1922
2811
1923
2812
if use_dbus:
1924
class MandosDBusService(dbus.service.Object):
2813
2814
@alternate_dbus_interfaces(
2815
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2816
class MandosDBusService(DBusObjectWithAnnotations):
1925
2817
"""A D-Bus proxy object"""
2818
1926
2819
def __init__(self):
1927
dbus.service.Object.__init__(self, bus, u"/")
1928
_interface = u"se.bsnet.fukt.Mandos"
1929
1930
@dbus.service.signal(_interface, signature=u"o")
2820
dbus.service.Object.__init__(self, bus, "/")
2821
2822
_interface = "se.recompile.Mandos"
2823
2824
@dbus.service.signal(_interface, signature="o")
1931
2825
def ClientAdded(self, objpath):
1932
2826
"D-Bus signal"
1933
2827
pass
1934
2828
1935
@dbus.service.signal(_interface, signature=u"ss")
2829
@dbus.service.signal(_interface, signature="ss")
1936
2830
def ClientNotFound(self, fingerprint, address):
1937
2831
"D-Bus signal"
1938
2832
pass
1939
2833
1940
@dbus.service.signal(_interface, signature=u"os")
2834
@dbus.service.signal(_interface, signature="os")
1941
2835
def ClientRemoved(self, objpath, name):
1942
2836
"D-Bus signal"
1943
2837
pass
1944
2838
1945
@dbus.service.method(_interface, out_signature=u"ao")
2839
@dbus.service.method(_interface, out_signature="ao")
1946
2840
def GetAllClients(self):
1947
2841
"D-Bus method"
1948
return dbus.Array(c.dbus_object_path
1949
for c in tcp_server.clients)
2842
return dbus.Array(c.dbus_object_path for c in
2843
tcp_server.clients.itervalues())
1950
2844
1951
2845
@dbus.service.method(_interface,
1952
out_signature=u"a{oa{sv}}")
2846
out_signature="a{oa{sv}}")
1953
2847
def GetAllClientsWithProperties(self):
1954
2848
"D-Bus method"
1955
2849
return dbus.Dictionary(
1956
((c.dbus_object_path, c.GetAll(u""))
1957
for c in tcp_server.clients),
1958
signature=u"oa{sv}")
2850
{ c.dbus_object_path: c.GetAll("")
2851
for c in tcp_server.clients.itervalues() },
2852
signature="oa{sv}")
1959
2853
1960
@dbus.service.method(_interface, in_signature=u"o")
2854
@dbus.service.method(_interface, in_signature="o")
1961
2855
def RemoveClient(self, object_path):
1962
2856
"D-Bus method"
1963
for c in tcp_server.clients:
2857
for c in tcp_server.clients.itervalues():
1964
2858
if c.dbus_object_path == object_path:
1965
tcp_server.clients.remove(c)
2859
del tcp_server.clients[c.name]
1966
2860
c.remove_from_connection()
1967
2861
# Don't signal anything except ClientRemoved
1968
2862
c.disable(quiet=True)
1977
2871
1978
2872
def cleanup():
1979
2873
"Cleanup function; run on exit"
1980
service.cleanup()
1981
2874
if zeroconf:
2875
service.cleanup()
2876
2877
multiprocessing.active_children()
2878
wnull.close()
2879
if not (tcp_server.clients or client_settings):
2880
return
2881
2882
# Store client before exiting. Secrets are encrypted with key
2883
# based on what config file has. If config file is
2884
# removed/edited, old secret will thus be unrecovable.
2885
clients = {}
2886
with PGPEngine() as pgp:
2887
for client in tcp_server.clients.itervalues():
2888
key = client_settings[client.name]["secret"]
2889
client.encrypted_secret = pgp.encrypt(client.secret,
2890
key)
2891
client_dict = {}
2892
2893
# A list of attributes that can not be pickled
2894
# + secret.
2895
exclude = { "bus", "changedstate", "secret",
2896
"checker", "server_settings" }
2897
for name, typ in inspect.getmembers(dbus.service
2898
.Object):
2899
exclude.add(name)
2900
2901
client_dict["encrypted_secret"] = (client
2902
.encrypted_secret)
2903
for attr in client.client_structure:
2904
if attr not in exclude:
2905
client_dict[attr] = getattr(client, attr)
2906
2907
clients[client.name] = client_dict
2908
del client_settings[client.name]["secret"]
2909
2910
try:
2911
with tempfile.NamedTemporaryFile(
2912
mode='wb',
2913
suffix=".pickle",
2914
prefix='clients-',
2915
dir=os.path.dirname(stored_state_path),
2916
delete=False) as stored_state:
2917
pickle.dump((clients, client_settings), stored_state)
2918
tempname = stored_state.name
2919
os.rename(tempname, stored_state_path)
2920
except (IOError, OSError) as e:
2921
if not debug:
2922
try:
2923
os.remove(tempname)
2924
except NameError:
2925
pass
2926
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2927
logger.warning("Could not save persistent state: {}"
2928
.format(os.strerror(e.errno)))
2929
else:
2930
logger.warning("Could not save persistent state:",
2931
exc_info=e)
2932
raise
2933
2934
# Delete all clients, and settings from config
1982
2935
while tcp_server.clients:
1983
client = tcp_server.clients.pop()
2936
name, client = tcp_server.clients.popitem()
1984
2937
if use_dbus:
1985
2938
client.remove_from_connection()
1986
client.disable_hook = None
1987
2939
# Don't signal anything except ClientRemoved
1988
2940
client.disable(quiet=True)
1989
2941
if use_dbus:
1990
2942
# Emit D-Bus signal
1991
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
1992
client.name)
2943
mandos_dbus_service.ClientRemoved(
2944
client.dbus_object_path, client.name)
2945
client_settings.clear()
1993
2946
1994
2947
atexit.register(cleanup)
1995
2948
1996
for client in tcp_server.clients:
2949
for client in tcp_server.clients.itervalues():
1997
2950
if use_dbus:
1998
2951
# Emit D-Bus signal
1999
2952
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2000
client.enable()
2953
# Need to initiate checking of clients
2954
if client.enabled:
2955
client.init_checker()
2001
2956
2002
2957
tcp_server.enable()
2003
2958
tcp_server.server_activate()
2004
2959
2005
2960
# Find out what port we got
2006
service.port = tcp_server.socket.getsockname()[1]
2961
if zeroconf:
2962
service.port = tcp_server.socket.getsockname()[1]
2007
2963
if use_ipv6:
2008
logger.info(u"Now listening on address %r, port %d,"
2009
" flowinfo %d, scope_id %d"
2010
% tcp_server.socket.getsockname())
2964
logger.info("Now listening on address %r, port %d,"
2965
" flowinfo %d, scope_id %d",
2966
*tcp_server.socket.getsockname())
2011
2967
else: # IPv4
2012
logger.info(u"Now listening on address %r, port %d"
2013
% tcp_server.socket.getsockname())
2968
logger.info("Now listening on address %r, port %d",
2969
*tcp_server.socket.getsockname())
2014
2970
2015
2971
#service.interface = tcp_server.socket.getsockname()[3]
2016
2972
2017
2973
try:
2018
# From the Avahi example code
2019
try:
2020
service.activate()
2021
except dbus.exceptions.DBusException, error:
2022
logger.critical(u"DBusException: %s", error)
2023
cleanup()
2024
sys.exit(1)
2025
# End of Avahi example code
2974
if zeroconf:
2975
# From the Avahi example code
2976
try:
2977
service.activate()
2978
except dbus.exceptions.DBusException as error:
2979
logger.critical("D-Bus Exception", exc_info=error)
2980
cleanup()
2981
sys.exit(1)
2982
# End of Avahi example code
2026
2983
2027
2984
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2028
2985
lambda *args, **kwargs:
2029
2986
(tcp_server.handle_request
2030
2987
(*args[2:], **kwargs) or True))
2031
2988
2032
logger.debug(u"Starting main loop")
2989
logger.debug("Starting main loop")
2033
2990
main_loop.run()
2034
except AvahiError, error:
2035
logger.critical(u"AvahiError: %s", error)
2991
except AvahiError as error:
2992
logger.critical("Avahi Error", exc_info=error)
2036
2993
cleanup()
2037
2994
sys.exit(1)
2038
2995
except KeyboardInterrupt:
2039
2996
if debug:
2040
print >> sys.stderr
2041
logger.debug(u"Server received KeyboardInterrupt")
2042
logger.debug(u"Server exiting")
2997
print("", file=sys.stderr)
2998
logger.debug("Server received KeyboardInterrupt")
2999
logger.debug("Server exiting")
2043
3000
# Must run before the D-Bus bus name gets deregistered
2044
3001
cleanup()
2045
3002
3003
2046
3004
if __name__ == '__main__':
2047
3005
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0