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- Committer: Björn Påhlsson
- Date: 2010-08-22 13:34:42 UTC
- mfrom: (416.1.2 mandos)
- mto: (24.1.154 mandos) (237.4.3 mandos-release)
- mto: This revision was merged to the branch mainline in revision 421.
- Revision ID: belorn@fukt.bsnet.se-20100822133442-rbx6xls26j2sejky
Changed ForkingMixIn in favor of multiprocessing
Added approval functionallity
Added approval functionallity
- files removed:
- DBUS-API
- debian/source
- debian/upstream
- network-hooks.d
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
#
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
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#
5
#
6
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# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2016 Teddy Hogeborn
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# Copyright © 2008-2016 Björn Påhlsson
16
#
14
# Copyright © 2008,2009 Teddy Hogeborn
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# Copyright © 2008,2009 Björn Påhlsson
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#
17
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# 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
19
19
# the Free Software Foundation, either version 3 of the License, or
23
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25
25
# GNU General Public License for more details.
26
#
26
#
27
27
# You should have received a copy of the GNU General Public License
28
28
# along with this program. If not, see
29
29
# <http://www.gnu.org/licenses/>.
30
#
31
# Contact the authors at <mandos@recompile.se>.
32
#
33
34
from __future__ import (division, absolute_import, print_function,
35
unicode_literals)
36
37
try:
38
from future_builtins import *
39
except ImportError:
40
pass
41
42
try:
43
import SocketServer as socketserver
44
except ImportError:
45
import socketserver
30
#
31
# Contact the authors at <mandos@fukt.bsnet.se>.
32
#
33
34
from __future__ import division, with_statement, absolute_import
35
36
import SocketServer as socketserver
46
37
import socket
47
import argparse
38
import optparse
48
39
import datetime
49
40
import errno
50
try:
51
import ConfigParser as configparser
52
except ImportError:
53
import configparser
41
import gnutls.crypto
42
import gnutls.connection
43
import gnutls.errors
44
import gnutls.library.functions
45
import gnutls.library.constants
46
import gnutls.library.types
47
import ConfigParser as configparser
54
48
import sys
55
49
import re
56
50
import os
65
59
import struct
66
60
import fcntl
67
61
import functools
68
try:
69
import cPickle as pickle
70
except ImportError:
71
import pickle
62
import cPickle as pickle
72
63
import multiprocessing
73
import types
74
import binascii
75
import tempfile
76
import itertools
77
import collections
78
import codecs
79
64
80
65
import dbus
81
66
import dbus.service
82
from gi.repository import GLib
67
import gobject
68
import avahi
83
69
from dbus.mainloop.glib import DBusGMainLoop
84
70
import ctypes
85
71
import ctypes.util
86
72
import xml.dom.minidom
87
73
import inspect
88
74
89
# Try to find the value of SO_BINDTODEVICE:
90
75
try:
91
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
92
# newer, and it is also the most natural place for it:
93
76
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
94
77
except AttributeError:
95
78
try:
96
# This is where SO_BINDTODEVICE was up to and including Python
97
# 2.6, and also 3.2:
98
79
from IN import SO_BINDTODEVICE
99
80
except ImportError:
100
# In Python 2.7 it seems to have been removed entirely.
101
# Try running the C preprocessor:
102
try:
103
cc = subprocess.Popen(["cc", "--language=c", "-E",
104
"/dev/stdin"],
105
stdin=subprocess.PIPE,
106
stdout=subprocess.PIPE)
107
stdout = cc.communicate(
108
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
109
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
110
except (OSError, ValueError, IndexError):
111
# No value found
112
SO_BINDTODEVICE = None
113
114
if sys.version_info.major == 2:
115
str = unicode
116
117
version = "1.7.10"
118
stored_state_file = "clients.pickle"
119
120
logger = logging.getLogger()
121
syslogger = None
122
123
try:
124
if_nametoindex = ctypes.cdll.LoadLibrary(
125
ctypes.util.find_library("c")).if_nametoindex
126
except (OSError, AttributeError):
127
128
def if_nametoindex(interface):
129
"Get an interface index the hard way, i.e. using fcntl()"
130
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
131
with contextlib.closing(socket.socket()) as s:
132
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
133
struct.pack(b"16s16x", interface))
134
interface_index = struct.unpack("I", ifreq[16:20])[0]
135
return interface_index
136
137
138
def copy_function(func):
139
"""Make a copy of a function"""
140
if sys.version_info.major == 2:
141
return types.FunctionType(func.func_code,
142
func.func_globals,
143
func.func_name,
144
func.func_defaults,
145
func.func_closure)
146
else:
147
return types.FunctionType(func.__code__,
148
func.__globals__,
149
func.__name__,
150
func.__defaults__,
151
func.__closure__)
152
153
154
def initlogger(debug, level=logging.WARNING):
155
"""init logger and add loglevel"""
156
157
global syslogger
158
syslogger = (logging.handlers.SysLogHandler(
159
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
160
address="/dev/log"))
161
syslogger.setFormatter(logging.Formatter
162
('Mandos [%(process)d]: %(levelname)s:'
163
' %(message)s'))
164
logger.addHandler(syslogger)
165
166
if debug:
167
console = logging.StreamHandler()
168
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
169
' [%(process)d]:'
170
' %(levelname)s:'
171
' %(message)s'))
172
logger.addHandler(console)
173
logger.setLevel(level)
174
175
176
class PGPError(Exception):
177
"""Exception if encryption/decryption fails"""
178
pass
179
180
181
class PGPEngine(object):
182
"""A simple class for OpenPGP symmetric encryption & decryption"""
183
184
def __init__(self):
185
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
186
self.gpg = "gpg"
187
try:
188
output = subprocess.check_output(["gpgconf"])
189
for line in output.splitlines():
190
name, text, path = line.split(b":")
191
if name == "gpg":
192
self.gpg = path
193
break
194
except OSError as e:
195
if e.errno != errno.ENOENT:
196
raise
197
self.gnupgargs = ['--batch',
198
'--homedir', self.tempdir,
199
'--force-mdc',
200
'--quiet']
201
# Only GPG version 1 has the --no-use-agent option.
202
if self.gpg == "gpg" or self.gpg.endswith("/gpg"):
203
self.gnupgargs.append("--no-use-agent")
204
205
def __enter__(self):
206
return self
207
208
def __exit__(self, exc_type, exc_value, traceback):
209
self._cleanup()
210
return False
211
212
def __del__(self):
213
self._cleanup()
214
215
def _cleanup(self):
216
if self.tempdir is not None:
217
# Delete contents of tempdir
218
for root, dirs, files in os.walk(self.tempdir,
219
topdown=False):
220
for filename in files:
221
os.remove(os.path.join(root, filename))
222
for dirname in dirs:
223
os.rmdir(os.path.join(root, dirname))
224
# Remove tempdir
225
os.rmdir(self.tempdir)
226
self.tempdir = None
227
228
def password_encode(self, password):
229
# Passphrase can not be empty and can not contain newlines or
230
# NUL bytes. So we prefix it and hex encode it.
231
encoded = b"mandos" + binascii.hexlify(password)
232
if len(encoded) > 2048:
233
# GnuPG can't handle long passwords, so encode differently
234
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
235
.replace(b"\n", b"\\n")
236
.replace(b"\0", b"\\x00"))
237
return encoded
238
239
def encrypt(self, data, password):
240
passphrase = self.password_encode(password)
241
with tempfile.NamedTemporaryFile(
242
dir=self.tempdir) as passfile:
243
passfile.write(passphrase)
244
passfile.flush()
245
proc = subprocess.Popen([self.gpg, '--symmetric',
246
'--passphrase-file',
247
passfile.name]
248
+ self.gnupgargs,
249
stdin=subprocess.PIPE,
250
stdout=subprocess.PIPE,
251
stderr=subprocess.PIPE)
252
ciphertext, err = proc.communicate(input=data)
253
if proc.returncode != 0:
254
raise PGPError(err)
255
return ciphertext
256
257
def decrypt(self, data, password):
258
passphrase = self.password_encode(password)
259
with tempfile.NamedTemporaryFile(
260
dir=self.tempdir) as passfile:
261
passfile.write(passphrase)
262
passfile.flush()
263
proc = subprocess.Popen([self.gpg, '--decrypt',
264
'--passphrase-file',
265
passfile.name]
266
+ self.gnupgargs,
267
stdin=subprocess.PIPE,
268
stdout=subprocess.PIPE,
269
stderr=subprocess.PIPE)
270
decrypted_plaintext, err = proc.communicate(input=data)
271
if proc.returncode != 0:
272
raise PGPError(err)
273
return decrypted_plaintext
274
275
276
# Pretend that we have an Avahi module
277
class Avahi(object):
278
"""This isn't so much a class as it is a module-like namespace.
279
It is instantiated once, and simulates having an Avahi module."""
280
IF_UNSPEC = -1 # avahi-common/address.h
281
PROTO_UNSPEC = -1 # avahi-common/address.h
282
PROTO_INET = 0 # avahi-common/address.h
283
PROTO_INET6 = 1 # avahi-common/address.h
284
DBUS_NAME = "org.freedesktop.Avahi"
285
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
286
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
287
DBUS_PATH_SERVER = "/"
288
289
def string_array_to_txt_array(self, t):
290
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
291
for s in t), signature="ay")
292
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
293
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
294
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
295
SERVER_INVALID = 0 # avahi-common/defs.h
296
SERVER_REGISTERING = 1 # avahi-common/defs.h
297
SERVER_RUNNING = 2 # avahi-common/defs.h
298
SERVER_COLLISION = 3 # avahi-common/defs.h
299
SERVER_FAILURE = 4 # avahi-common/defs.h
300
avahi = Avahi()
301
81
SO_BINDTODEVICE = None
82
83
84
version = "1.0.14"
85
86
logger = logging.Logger(u'mandos')
87
syslogger = (logging.handlers.SysLogHandler
88
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
89
address = "/dev/log"))
90
syslogger.setFormatter(logging.Formatter
91
(u'Mandos [%(process)d]: %(levelname)s:'
92
u' %(message)s'))
93
logger.addHandler(syslogger)
94
95
console = logging.StreamHandler()
96
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
97
u' %(levelname)s:'
98
u' %(message)s'))
99
logger.addHandler(console)
100
101
multiprocessing_manager = multiprocessing.Manager()
302
102
303
103
class AvahiError(Exception):
304
104
def __init__(self, value, *args, **kwargs):
305
105
self.value = value
306
return super(AvahiError, self).__init__(value, *args,
307
**kwargs)
308
106
super(AvahiError, self).__init__(value, *args, **kwargs)
107
def __unicode__(self):
108
return unicode(repr(self.value))
309
109
310
110
class AvahiServiceError(AvahiError):
311
111
pass
312
112
313
314
113
class AvahiGroupError(AvahiError):
315
114
pass
316
115
317
116
318
117
class AvahiService(object):
319
118
"""An Avahi (Zeroconf) service.
320
119
321
120
Attributes:
322
121
interface: integer; avahi.IF_UNSPEC or an interface index.
323
122
Used to optionally bind to the specified interface.
324
name: string; Example: 'Mandos'
325
type: string; Example: '_mandos._tcp'.
326
See <https://www.iana.org/assignments/service-names-port-numbers>
123
name: string; Example: u'Mandos'
124
type: string; Example: u'_mandos._tcp'.
125
See <http://www.dns-sd.org/ServiceTypes.html>
327
126
port: integer; what port to announce
328
127
TXT: list of strings; TXT record for the service
329
128
domain: string; Domain to publish on, default to .local if empty.
335
134
server: D-Bus Server
336
135
bus: dbus.SystemBus()
337
136
"""
338
339
def __init__(self,
340
interface=avahi.IF_UNSPEC,
341
name=None,
342
servicetype=None,
343
port=None,
344
TXT=None,
345
domain="",
346
host="",
347
max_renames=32768,
348
protocol=avahi.PROTO_UNSPEC,
349
bus=None):
137
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
138
servicetype = None, port = None, TXT = None,
139
domain = u"", host = u"", max_renames = 32768,
140
protocol = avahi.PROTO_UNSPEC, bus = None):
350
141
self.interface = interface
351
142
self.name = name
352
143
self.type = servicetype
360
151
self.group = None # our entry group
361
152
self.server = None
362
153
self.bus = bus
363
self.entry_group_state_changed_match = None
364
365
def rename(self, remove=True):
154
def rename(self):
366
155
"""Derived from the Avahi example code"""
367
156
if self.rename_count >= self.max_renames:
368
logger.critical("No suitable Zeroconf service name found"
369
" after %i retries, exiting.",
157
logger.critical(u"No suitable Zeroconf service name found"
158
u" after %i retries, exiting.",
370
159
self.rename_count)
371
raise AvahiServiceError("Too many renames")
372
self.name = str(
373
self.server.GetAlternativeServiceName(self.name))
160
raise AvahiServiceError(u"Too many renames")
161
self.name = self.server.GetAlternativeServiceName(self.name)
162
logger.info(u"Changing Zeroconf service name to %r ...",
163
unicode(self.name))
164
syslogger.setFormatter(logging.Formatter
165
(u'Mandos (%s) [%%(process)d]:'
166
u' %%(levelname)s: %%(message)s'
167
% self.name))
168
self.remove()
169
self.add()
374
170
self.rename_count += 1
375
logger.info("Changing Zeroconf service name to %r ...",
376
self.name)
377
if remove:
378
self.remove()
379
try:
380
self.add()
381
except dbus.exceptions.DBusException as error:
382
if (error.get_dbus_name()
383
== "org.freedesktop.Avahi.CollisionError"):
384
logger.info("Local Zeroconf service name collision.")
385
return self.rename(remove=False)
386
else:
387
logger.critical("D-Bus Exception", exc_info=error)
388
self.cleanup()
389
os._exit(1)
390
391
171
def remove(self):
392
172
"""Derived from the Avahi example code"""
393
if self.entry_group_state_changed_match is not None:
394
self.entry_group_state_changed_match.remove()
395
self.entry_group_state_changed_match = None
396
173
if self.group is not None:
397
174
self.group.Reset()
398
399
175
def add(self):
400
176
"""Derived from the Avahi example code"""
401
self.remove()
402
177
if self.group is None:
403
178
self.group = dbus.Interface(
404
179
self.bus.get_object(avahi.DBUS_NAME,
405
180
self.server.EntryGroupNew()),
406
181
avahi.DBUS_INTERFACE_ENTRY_GROUP)
407
self.entry_group_state_changed_match = (
408
self.group.connect_to_signal(
409
'StateChanged', self.entry_group_state_changed))
410
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
182
self.group.connect_to_signal('StateChanged',
183
self
184
.entry_group_state_changed)
185
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
411
186
self.name, self.type)
412
187
self.group.AddService(
413
188
self.interface,
418
193
dbus.UInt16(self.port),
419
194
avahi.string_array_to_txt_array(self.TXT))
420
195
self.group.Commit()
421
422
196
def entry_group_state_changed(self, state, error):
423
197
"""Derived from the Avahi example code"""
424
logger.debug("Avahi entry group state change: %i", state)
425
198
logger.debug(u"Avahi state change: %i", state)
199
426
200
if state == avahi.ENTRY_GROUP_ESTABLISHED:
427
logger.debug("Zeroconf service established.")
201
logger.debug(u"Zeroconf service established.")
428
202
elif state == avahi.ENTRY_GROUP_COLLISION:
429
logger.info("Zeroconf service name collision.")
203
logger.warning(u"Zeroconf service name collision.")
430
204
self.rename()
431
205
elif state == avahi.ENTRY_GROUP_FAILURE:
432
logger.critical("Avahi: Error in group state changed %s",
433
str(error))
434
raise AvahiGroupError("State changed: {!s}".format(error))
435
206
logger.critical(u"Avahi: Error in group state changed %s",
207
unicode(error))
208
raise AvahiGroupError(u"State changed: %s"
209
% unicode(error))
436
210
def cleanup(self):
437
211
"""Derived from the Avahi example code"""
438
212
if self.group is not None:
439
try:
440
self.group.Free()
441
except (dbus.exceptions.UnknownMethodException,
442
dbus.exceptions.DBusException):
443
pass
213
self.group.Free()
444
214
self.group = None
445
self.remove()
446
447
def server_state_changed(self, state, error=None):
215
def server_state_changed(self, state):
448
216
"""Derived from the Avahi example code"""
449
logger.debug("Avahi server state change: %i", state)
450
bad_states = {
451
avahi.SERVER_INVALID: "Zeroconf server invalid",
452
avahi.SERVER_REGISTERING: None,
453
avahi.SERVER_COLLISION: "Zeroconf server name collision",
454
avahi.SERVER_FAILURE: "Zeroconf server failure",
455
}
456
if state in bad_states:
457
if bad_states[state] is not None:
458
if error is None:
459
logger.error(bad_states[state])
460
else:
461
logger.error(bad_states[state] + ": %r", error)
462
self.cleanup()
217
if state == avahi.SERVER_COLLISION:
218
logger.error(u"Zeroconf server name collision")
219
self.remove()
463
220
elif state == avahi.SERVER_RUNNING:
464
try:
465
self.add()
466
except dbus.exceptions.DBusException as error:
467
if (error.get_dbus_name()
468
== "org.freedesktop.Avahi.CollisionError"):
469
logger.info("Local Zeroconf service name"
470
" collision.")
471
return self.rename(remove=False)
472
else:
473
logger.critical("D-Bus Exception", exc_info=error)
474
self.cleanup()
475
os._exit(1)
476
else:
477
if error is None:
478
logger.debug("Unknown state: %r", state)
479
else:
480
logger.debug("Unknown state: %r: %r", state, error)
481
221
self.add()
482
222
def activate(self):
483
223
"""Derived from the Avahi example code"""
484
224
if self.server is None:
485
225
self.server = dbus.Interface(
486
226
self.bus.get_object(avahi.DBUS_NAME,
487
avahi.DBUS_PATH_SERVER,
488
follow_name_owner_changes=True),
227
avahi.DBUS_PATH_SERVER),
489
228
avahi.DBUS_INTERFACE_SERVER)
490
self.server.connect_to_signal("StateChanged",
491
self.server_state_changed)
229
self.server.connect_to_signal(u"StateChanged",
230
self.server_state_changed)
492
231
self.server_state_changed(self.server.GetState())
493
232
494
233
495
class AvahiServiceToSyslog(AvahiService):
496
def rename(self, *args, **kwargs):
497
"""Add the new name to the syslog messages"""
498
ret = AvahiService.rename(self, *args, **kwargs)
499
syslogger.setFormatter(logging.Formatter(
500
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
501
.format(self.name)))
502
return ret
503
504
505
# Pretend that we have a GnuTLS module
506
class GnuTLS(object):
507
"""This isn't so much a class as it is a module-like namespace.
508
It is instantiated once, and simulates having a GnuTLS module."""
509
510
_library = ctypes.cdll.LoadLibrary(
511
ctypes.util.find_library("gnutls"))
512
_need_version = b"3.3.0"
513
514
def __init__(self):
515
# Need to use class name "GnuTLS" here, since this method is
516
# called before the assignment to the "gnutls" global variable
517
# happens.
518
if GnuTLS.check_version(self._need_version) is None:
519
raise GnuTLS.Error("Needs GnuTLS {} or later"
520
.format(self._need_version))
521
522
# Unless otherwise indicated, the constants and types below are
523
# all from the gnutls/gnutls.h C header file.
524
525
# Constants
526
E_SUCCESS = 0
527
E_INTERRUPTED = -52
528
E_AGAIN = -28
529
CRT_OPENPGP = 2
530
CLIENT = 2
531
SHUT_RDWR = 0
532
CRD_CERTIFICATE = 1
533
E_NO_CERTIFICATE_FOUND = -49
534
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
535
536
# Types
537
class session_int(ctypes.Structure):
538
_fields_ = []
539
session_t = ctypes.POINTER(session_int)
540
541
class certificate_credentials_st(ctypes.Structure):
542
_fields_ = []
543
certificate_credentials_t = ctypes.POINTER(
544
certificate_credentials_st)
545
certificate_type_t = ctypes.c_int
546
547
class datum_t(ctypes.Structure):
548
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
549
('size', ctypes.c_uint)]
550
551
class openpgp_crt_int(ctypes.Structure):
552
_fields_ = []
553
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
554
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
555
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
556
credentials_type_t = ctypes.c_int
557
transport_ptr_t = ctypes.c_void_p
558
close_request_t = ctypes.c_int
559
560
# Exceptions
561
class Error(Exception):
562
# We need to use the class name "GnuTLS" here, since this
563
# exception might be raised from within GnuTLS.__init__,
564
# which is called before the assignment to the "gnutls"
565
# global variable has happened.
566
def __init__(self, message=None, code=None, args=()):
567
# Default usage is by a message string, but if a return
568
# code is passed, convert it to a string with
569
# gnutls.strerror()
570
self.code = code
571
if message is None and code is not None:
572
message = GnuTLS.strerror(code)
573
return super(GnuTLS.Error, self).__init__(
574
message, *args)
575
576
class CertificateSecurityError(Error):
577
pass
578
579
# Classes
580
class Credentials(object):
581
def __init__(self):
582
self._c_object = gnutls.certificate_credentials_t()
583
gnutls.certificate_allocate_credentials(
584
ctypes.byref(self._c_object))
585
self.type = gnutls.CRD_CERTIFICATE
586
587
def __del__(self):
588
gnutls.certificate_free_credentials(self._c_object)
589
590
class ClientSession(object):
591
def __init__(self, socket, credentials=None):
592
self._c_object = gnutls.session_t()
593
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
594
gnutls.set_default_priority(self._c_object)
595
gnutls.transport_set_ptr(self._c_object, socket.fileno())
596
gnutls.handshake_set_private_extensions(self._c_object,
597
True)
598
self.socket = socket
599
if credentials is None:
600
credentials = gnutls.Credentials()
601
gnutls.credentials_set(self._c_object, credentials.type,
602
ctypes.cast(credentials._c_object,
603
ctypes.c_void_p))
604
self.credentials = credentials
605
606
def __del__(self):
607
gnutls.deinit(self._c_object)
608
609
def handshake(self):
610
return gnutls.handshake(self._c_object)
611
612
def send(self, data):
613
data = bytes(data)
614
data_len = len(data)
615
while data_len > 0:
616
data_len -= gnutls.record_send(self._c_object,
617
data[-data_len:],
618
data_len)
619
620
def bye(self):
621
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
622
623
# Error handling functions
624
def _error_code(result):
625
"""A function to raise exceptions on errors, suitable
626
for the 'restype' attribute on ctypes functions"""
627
if result >= 0:
628
return result
629
if result == gnutls.E_NO_CERTIFICATE_FOUND:
630
raise gnutls.CertificateSecurityError(code=result)
631
raise gnutls.Error(code=result)
632
633
def _retry_on_error(result, func, arguments):
634
"""A function to retry on some errors, suitable
635
for the 'errcheck' attribute on ctypes functions"""
636
while result < 0:
637
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
638
return _error_code(result)
639
result = func(*arguments)
640
return result
641
642
# Unless otherwise indicated, the function declarations below are
643
# all from the gnutls/gnutls.h C header file.
644
645
# Functions
646
priority_set_direct = _library.gnutls_priority_set_direct
647
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
648
ctypes.POINTER(ctypes.c_char_p)]
649
priority_set_direct.restype = _error_code
650
651
init = _library.gnutls_init
652
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
653
init.restype = _error_code
654
655
set_default_priority = _library.gnutls_set_default_priority
656
set_default_priority.argtypes = [session_t]
657
set_default_priority.restype = _error_code
658
659
record_send = _library.gnutls_record_send
660
record_send.argtypes = [session_t, ctypes.c_void_p,
661
ctypes.c_size_t]
662
record_send.restype = ctypes.c_ssize_t
663
record_send.errcheck = _retry_on_error
664
665
certificate_allocate_credentials = (
666
_library.gnutls_certificate_allocate_credentials)
667
certificate_allocate_credentials.argtypes = [
668
ctypes.POINTER(certificate_credentials_t)]
669
certificate_allocate_credentials.restype = _error_code
670
671
certificate_free_credentials = (
672
_library.gnutls_certificate_free_credentials)
673
certificate_free_credentials.argtypes = [
674
certificate_credentials_t]
675
certificate_free_credentials.restype = None
676
677
handshake_set_private_extensions = (
678
_library.gnutls_handshake_set_private_extensions)
679
handshake_set_private_extensions.argtypes = [session_t,
680
ctypes.c_int]
681
handshake_set_private_extensions.restype = None
682
683
credentials_set = _library.gnutls_credentials_set
684
credentials_set.argtypes = [session_t, credentials_type_t,
685
ctypes.c_void_p]
686
credentials_set.restype = _error_code
687
688
strerror = _library.gnutls_strerror
689
strerror.argtypes = [ctypes.c_int]
690
strerror.restype = ctypes.c_char_p
691
692
certificate_type_get = _library.gnutls_certificate_type_get
693
certificate_type_get.argtypes = [session_t]
694
certificate_type_get.restype = _error_code
695
696
certificate_get_peers = _library.gnutls_certificate_get_peers
697
certificate_get_peers.argtypes = [session_t,
698
ctypes.POINTER(ctypes.c_uint)]
699
certificate_get_peers.restype = ctypes.POINTER(datum_t)
700
701
global_set_log_level = _library.gnutls_global_set_log_level
702
global_set_log_level.argtypes = [ctypes.c_int]
703
global_set_log_level.restype = None
704
705
global_set_log_function = _library.gnutls_global_set_log_function
706
global_set_log_function.argtypes = [log_func]
707
global_set_log_function.restype = None
708
709
deinit = _library.gnutls_deinit
710
deinit.argtypes = [session_t]
711
deinit.restype = None
712
713
handshake = _library.gnutls_handshake
714
handshake.argtypes = [session_t]
715
handshake.restype = _error_code
716
handshake.errcheck = _retry_on_error
717
718
transport_set_ptr = _library.gnutls_transport_set_ptr
719
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
720
transport_set_ptr.restype = None
721
722
bye = _library.gnutls_bye
723
bye.argtypes = [session_t, close_request_t]
724
bye.restype = _error_code
725
bye.errcheck = _retry_on_error
726
727
check_version = _library.gnutls_check_version
728
check_version.argtypes = [ctypes.c_char_p]
729
check_version.restype = ctypes.c_char_p
730
731
# All the function declarations below are from gnutls/openpgp.h
732
733
openpgp_crt_init = _library.gnutls_openpgp_crt_init
734
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
735
openpgp_crt_init.restype = _error_code
736
737
openpgp_crt_import = _library.gnutls_openpgp_crt_import
738
openpgp_crt_import.argtypes = [openpgp_crt_t,
739
ctypes.POINTER(datum_t),
740
openpgp_crt_fmt_t]
741
openpgp_crt_import.restype = _error_code
742
743
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
744
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
745
ctypes.POINTER(ctypes.c_uint)]
746
openpgp_crt_verify_self.restype = _error_code
747
748
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
749
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
750
openpgp_crt_deinit.restype = None
751
752
openpgp_crt_get_fingerprint = (
753
_library.gnutls_openpgp_crt_get_fingerprint)
754
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
755
ctypes.c_void_p,
756
ctypes.POINTER(
757
ctypes.c_size_t)]
758
openpgp_crt_get_fingerprint.restype = _error_code
759
760
# Remove non-public functions
761
del _error_code, _retry_on_error
762
# Create the global "gnutls" object, simulating a module
763
gnutls = GnuTLS()
764
765
766
def call_pipe(connection, # : multiprocessing.Connection
767
func, *args, **kwargs):
768
"""This function is meant to be called by multiprocessing.Process
769
770
This function runs func(*args, **kwargs), and writes the resulting
771
return value on the provided multiprocessing.Connection.
772
"""
773
connection.send(func(*args, **kwargs))
774
connection.close()
775
776
234
# XXX Need to add:
235
# approved_by_default (Config option for each client)
236
# approved_delay (config option for each client)
237
# approved_duration (config option for each client)
777
238
class Client(object):
778
239
"""A representation of a client host served by this server.
779
240
780
241
Attributes:
781
approved: bool(); 'None' if not yet approved/disapproved
782
approval_delay: datetime.timedelta(); Time to wait for approval
783
approval_duration: datetime.timedelta(); Duration of one approval
242
name: string; from the config file, used in log messages and
243
D-Bus identifiers
244
fingerprint: string (40 or 32 hexadecimal digits); used to
245
uniquely identify the client
246
secret: bytestring; sent verbatim (over TLS) to client
247
host: string; available for use by the checker command
248
created: datetime.datetime(); (UTC) object creation
249
last_enabled: datetime.datetime(); (UTC)
250
enabled: bool()
251
last_checked_ok: datetime.datetime(); (UTC) or None
252
timeout: datetime.timedelta(); How long from last_checked_ok
253
until this client is disabled
254
interval: datetime.timedelta(); How often to start a new checker
255
disable_hook: If set, called by disable() as disable_hook(self)
784
256
checker: subprocess.Popen(); a running checker process used
785
257
to see if the client lives.
786
258
'None' if no process is running.
787
checker_callback_tag: a GLib event source tag, or None
788
checker_command: string; External command which is run to check
789
if client lives. %() expansions are done at
259
checker_initiator_tag: a gobject event source tag, or None
260
disable_initiator_tag: - '' -
261
checker_callback_tag: - '' -
262
checker_command: string; External command which is run to check if
263
client lives. %() expansions are done at
790
264
runtime with vars(self) as dict, so that for
791
265
instance %(name)s can be used in the command.
792
checker_initiator_tag: a GLib event source tag, or None
793
created: datetime.datetime(); (UTC) object creation
794
client_structure: Object describing what attributes a client has
795
and is used for storing the client at exit
796
266
current_checker_command: string; current running checker_command
797
disable_initiator_tag: a GLib event source tag, or None
798
enabled: bool()
799
fingerprint: string (40 or 32 hexadecimal digits); used to
800
uniquely identify the client
801
host: string; available for use by the checker command
802
interval: datetime.timedelta(); How often to start a new checker
803
last_approval_request: datetime.datetime(); (UTC) or None
804
last_checked_ok: datetime.datetime(); (UTC) or None
805
last_checker_status: integer between 0 and 255 reflecting exit
806
status of last checker. -1 reflects crashed
807
checker, -2 means no checker completed yet.
808
last_checker_signal: The signal which killed the last checker, if
809
last_checker_status is -1
810
last_enabled: datetime.datetime(); (UTC) or None
811
name: string; from the config file, used in log messages and
812
D-Bus identifiers
813
secret: bytestring; sent verbatim (over TLS) to client
814
timeout: datetime.timedelta(); How long from last_checked_ok
815
until this client is disabled
816
extended_timeout: extra long timeout when secret has been sent
817
runtime_expansions: Allowed attributes for runtime expansion.
818
expires: datetime.datetime(); time (UTC) when a client will be
819
disabled, or None
820
server_settings: The server_settings dict from main()
267
approved_delay: datetime.timedelta(); Time to wait for approval
268
_approved: bool(); 'None' if not yet approved/disapproved
269
approved_duration: datetime.timedelta(); Duration of one approval
821
270
"""
822
823
runtime_expansions = ("approval_delay", "approval_duration",
824
"created", "enabled", "expires",
825
"fingerprint", "host", "interval",
826
"last_approval_request", "last_checked_ok",
827
"last_enabled", "name", "timeout")
828
client_defaults = {
829
"timeout": "PT5M",
830
"extended_timeout": "PT15M",
831
"interval": "PT2M",
832
"checker": "fping -q -- %%(host)s",
833
"host": "",
834
"approval_delay": "PT0S",
835
"approval_duration": "PT1S",
836
"approved_by_default": "True",
837
"enabled": "True",
838
}
839
271
840
272
@staticmethod
841
def config_parser(config):
842
"""Construct a new dict of client settings of this form:
843
{ client_name: {setting_name: value, ...}, ...}
844
with exceptions for any special settings as defined above.
845
NOTE: Must be a pure function. Must return the same result
846
value given the same arguments.
847
"""
848
settings = {}
849
for client_name in config.sections():
850
section = dict(config.items(client_name))
851
client = settings[client_name] = {}
852
853
client["host"] = section["host"]
854
# Reformat values from string types to Python types
855
client["approved_by_default"] = config.getboolean(
856
client_name, "approved_by_default")
857
client["enabled"] = config.getboolean(client_name,
858
"enabled")
859
860
# Uppercase and remove spaces from fingerprint for later
861
# comparison purposes with return value from the
862
# fingerprint() function
863
client["fingerprint"] = (section["fingerprint"].upper()
864
.replace(" ", ""))
865
if "secret" in section:
866
client["secret"] = codecs.decode(section["secret"]
867
.encode("utf-8"),
868
"base64")
869
elif "secfile" in section:
870
with open(os.path.expanduser(os.path.expandvars
871
(section["secfile"])),
872
"rb") as secfile:
873
client["secret"] = secfile.read()
874
else:
875
raise TypeError("No secret or secfile for section {}"
876
.format(section))
877
client["timeout"] = string_to_delta(section["timeout"])
878
client["extended_timeout"] = string_to_delta(
879
section["extended_timeout"])
880
client["interval"] = string_to_delta(section["interval"])
881
client["approval_delay"] = string_to_delta(
882
section["approval_delay"])
883
client["approval_duration"] = string_to_delta(
884
section["approval_duration"])
885
client["checker_command"] = section["checker"]
886
client["last_approval_request"] = None
887
client["last_checked_ok"] = None
888
client["last_checker_status"] = -2
889
890
return settings
891
892
def __init__(self, settings, name=None, server_settings=None):
273
def _timedelta_to_milliseconds(td):
274
"Convert a datetime.timedelta() to milliseconds"
275
return ((td.days * 24 * 60 * 60 * 1000)
276
+ (td.seconds * 1000)
277
+ (td.microseconds // 1000))
278
279
def timeout_milliseconds(self):
280
"Return the 'timeout' attribute in milliseconds"
281
return self._timedelta_to_milliseconds(self.timeout)
282
283
def interval_milliseconds(self):
284
"Return the 'interval' attribute in milliseconds"
285
return self._timedelta_to_milliseconds(self.interval)
286
287
def approved_delay_milliseconds(self):
288
return self._timedelta_to_milliseconds(self.approved_delay)
289
290
def __init__(self, name = None, disable_hook=None, config=None):
291
"""Note: the 'checker' key in 'config' sets the
292
'checker_command' attribute and *not* the 'checker'
293
attribute."""
893
294
self.name = name
894
if server_settings is None:
895
server_settings = {}
896
self.server_settings = server_settings
897
# adding all client settings
898
for setting, value in settings.items():
899
setattr(self, setting, value)
900
901
if self.enabled:
902
if not hasattr(self, "last_enabled"):
903
self.last_enabled = datetime.datetime.utcnow()
904
if not hasattr(self, "expires"):
905
self.expires = (datetime.datetime.utcnow()
906
+ self.timeout)
295
if config is None:
296
config = {}
297
logger.debug(u"Creating client %r", self.name)
298
# Uppercase and remove spaces from fingerprint for later
299
# comparison purposes with return value from the fingerprint()
300
# function
301
self.fingerprint = (config[u"fingerprint"].upper()
302
.replace(u" ", u""))
303
logger.debug(u" Fingerprint: %s", self.fingerprint)
304
if u"secret" in config:
305
self.secret = config[u"secret"].decode(u"base64")
306
elif u"secfile" in config:
307
with open(os.path.expanduser(os.path.expandvars
308
(config[u"secfile"])),
309
"rb") as secfile:
310
self.secret = secfile.read()
907
311
else:
908
self.last_enabled = None
909
self.expires = None
910
911
logger.debug("Creating client %r", self.name)
912
logger.debug(" Fingerprint: %s", self.fingerprint)
913
self.created = settings.get("created",
914
datetime.datetime.utcnow())
915
916
# attributes specific for this server instance
312
#XXX Need to allow secret on demand!
313
raise TypeError(u"No secret or secfile for client %s"
314
% self.name)
315
self.host = config.get(u"host", u"")
316
self.created = datetime.datetime.utcnow()
317
self.enabled = False
318
self.last_enabled = None
319
self.last_checked_ok = None
320
self.timeout = string_to_delta(config[u"timeout"])
321
self.interval = string_to_delta(config[u"interval"])
322
self.disable_hook = disable_hook
917
323
self.checker = None
918
324
self.checker_initiator_tag = None
919
325
self.disable_initiator_tag = None
920
326
self.checker_callback_tag = None
327
self.checker_command = config[u"checker"]
921
328
self.current_checker_command = None
922
self.approved = None
923
self.approvals_pending = 0
924
self.changedstate = multiprocessing_manager.Condition(
925
multiprocessing_manager.Lock())
926
self.client_structure = [attr
927
for attr in self.__dict__.keys()
928
if not attr.startswith("_")]
929
self.client_structure.append("client_structure")
930
931
for name, t in inspect.getmembers(
932
type(self), lambda obj: isinstance(obj, property)):
933
if not name.startswith("_"):
934
self.client_structure.append(name)
935
936
# Send notice to process children that client state has changed
329
self.last_connect = None
330
self._approved = None
331
self.approved_by_default = config.get(u"approved_by_default",
332
False)
333
self.approved_delay = string_to_delta(
334
config[u"approved_delay"])
335
self.approved_duration = string_to_delta(
336
config[u"approved_duration"])
337
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
338
937
339
def send_changedstate(self):
938
with self.changedstate:
939
self.changedstate.notify_all()
940
340
self.changedstate.acquire()
341
self.changedstate.notify_all()
342
self.changedstate.release()
343
941
344
def enable(self):
942
345
"""Start this client's checker and timeout hooks"""
943
if getattr(self, "enabled", False):
346
if getattr(self, u"enabled", False):
944
347
# Already enabled
945
348
return
946
self.expires = datetime.datetime.utcnow() + self.timeout
947
self.enabled = True
349
self.send_changedstate()
948
350
self.last_enabled = datetime.datetime.utcnow()
949
self.init_checker()
950
self.send_changedstate()
951
351
# Schedule a new checker to be started an 'interval' from now,
352
# and every interval from then on.
353
self.checker_initiator_tag = (gobject.timeout_add
354
(self.interval_milliseconds(),
355
self.start_checker))
356
# Schedule a disable() when 'timeout' has passed
357
self.disable_initiator_tag = (gobject.timeout_add
358
(self.timeout_milliseconds(),
359
self.disable))
360
self.enabled = True
361
# Also start a new checker *right now*.
362
self.start_checker()
363
952
364
def disable(self, quiet=True):
953
365
"""Disable this client."""
954
366
if not getattr(self, "enabled", False):
955
367
return False
956
368
if not quiet:
957
logger.info("Disabling client %s", self.name)
958
if getattr(self, "disable_initiator_tag", None) is not None:
959
GLib.source_remove(self.disable_initiator_tag)
369
self.send_changedstate()
370
if not quiet:
371
logger.info(u"Disabling client %s", self.name)
372
if getattr(self, u"disable_initiator_tag", False):
373
gobject.source_remove(self.disable_initiator_tag)
960
374
self.disable_initiator_tag = None
961
self.expires = None
962
if getattr(self, "checker_initiator_tag", None) is not None:
963
GLib.source_remove(self.checker_initiator_tag)
375
if getattr(self, u"checker_initiator_tag", False):
376
gobject.source_remove(self.checker_initiator_tag)
964
377
self.checker_initiator_tag = None
965
378
self.stop_checker()
379
if self.disable_hook:
380
self.disable_hook(self)
966
381
self.enabled = False
967
if not quiet:
968
self.send_changedstate()
969
# Do not run this again if called by a GLib.timeout_add
382
# Do not run this again if called by a gobject.timeout_add
970
383
return False
971
384
972
385
def __del__(self):
386
self.disable_hook = None
973
387
self.disable()
974
975
def init_checker(self):
976
# Schedule a new checker to be started an 'interval' from now,
977
# and every interval from then on.
978
if self.checker_initiator_tag is not None:
979
GLib.source_remove(self.checker_initiator_tag)
980
self.checker_initiator_tag = GLib.timeout_add(
981
int(self.interval.total_seconds() * 1000),
982
self.start_checker)
983
# Schedule a disable() when 'timeout' has passed
984
if self.disable_initiator_tag is not None:
985
GLib.source_remove(self.disable_initiator_tag)
986
self.disable_initiator_tag = GLib.timeout_add(
987
int(self.timeout.total_seconds() * 1000), self.disable)
988
# Also start a new checker *right now*.
989
self.start_checker()
990
991
def checker_callback(self, source, condition, connection,
992
command):
388
389
def checker_callback(self, pid, condition, command):
993
390
"""The checker has completed, so take appropriate actions."""
994
391
self.checker_callback_tag = None
995
392
self.checker = None
996
# Read return code from connection (see call_pipe)
997
returncode = connection.recv()
998
connection.close()
999
1000
if returncode >= 0:
1001
self.last_checker_status = returncode
1002
self.last_checker_signal = None
1003
if self.last_checker_status == 0:
1004
logger.info("Checker for %(name)s succeeded",
393
if os.WIFEXITED(condition):
394
exitstatus = os.WEXITSTATUS(condition)
395
if exitstatus == 0:
396
logger.info(u"Checker for %(name)s succeeded",
1005
397
vars(self))
1006
398
self.checked_ok()
1007
399
else:
1008
logger.info("Checker for %(name)s failed", vars(self))
400
logger.info(u"Checker for %(name)s failed",
401
vars(self))
1009
402
else:
1010
self.last_checker_status = -1
1011
self.last_checker_signal = -returncode
1012
logger.warning("Checker for %(name)s crashed?",
403
logger.warning(u"Checker for %(name)s crashed?",
1013
404
vars(self))
1014
return False
1015
405
1016
406
def checked_ok(self):
1017
"""Assert that the client has been seen, alive and well."""
407
"""Bump up the timeout for this client.
408
409
This should only be called when the client has been seen,
410
alive and well.
411
"""
1018
412
self.last_checked_ok = datetime.datetime.utcnow()
1019
self.last_checker_status = 0
1020
self.last_checker_signal = None
1021
self.bump_timeout()
1022
1023
def bump_timeout(self, timeout=None):
1024
"""Bump up the timeout for this client."""
1025
if timeout is None:
1026
timeout = self.timeout
1027
if self.disable_initiator_tag is not None:
1028
GLib.source_remove(self.disable_initiator_tag)
1029
self.disable_initiator_tag = None
1030
if getattr(self, "enabled", False):
1031
self.disable_initiator_tag = GLib.timeout_add(
1032
int(timeout.total_seconds() * 1000), self.disable)
1033
self.expires = datetime.datetime.utcnow() + timeout
1034
1035
def need_approval(self):
1036
self.last_approval_request = datetime.datetime.utcnow()
1037
413
gobject.source_remove(self.disable_initiator_tag)
414
self.disable_initiator_tag = (gobject.timeout_add
415
(self.timeout_milliseconds(),
416
self.disable))
417
1038
418
def start_checker(self):
1039
419
"""Start a new checker subprocess if one is not running.
1040
420
1041
421
If a checker already exists, leave it running and do
1042
422
nothing."""
1043
423
# The reason for not killing a running checker is that if we
1044
# did that, and if a checker (for some reason) started running
1045
# slowly and taking more than 'interval' time, then the client
1046
# would inevitably timeout, since no checker would get a
1047
# chance to run to completion. If we instead leave running
424
# did that, then if a checker (for some reason) started
425
# running slowly and taking more than 'interval' time, the
426
# client would inevitably timeout, since no checker would get
427
# a chance to run to completion. If we instead leave running
1048
428
# checkers alone, the checker would have to take more time
1049
429
# than 'timeout' for the client to be disabled, which is as it
1050
430
# should be.
1051
1052
if self.checker is not None and not self.checker.is_alive():
1053
logger.warning("Checker was not alive; joining")
1054
self.checker.join()
1055
self.checker = None
431
432
# If a checker exists, make sure it is not a zombie
433
try:
434
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
435
except (AttributeError, OSError), error:
436
if (isinstance(error, OSError)
437
and error.errno != errno.ECHILD):
438
raise error
439
else:
440
if pid:
441
logger.warning(u"Checker was a zombie")
442
gobject.source_remove(self.checker_callback_tag)
443
self.checker_callback(pid, status,
444
self.current_checker_command)
1056
445
# Start a new checker if needed
1057
446
if self.checker is None:
1058
# Escape attributes for the shell
1059
escaped_attrs = {
1060
attr: re.escape(str(getattr(self, attr)))
1061
for attr in self.runtime_expansions}
1062
447
try:
1063
command = self.checker_command % escaped_attrs
1064
except TypeError as error:
1065
logger.error('Could not format string "%s"',
1066
self.checker_command,
1067
exc_info=error)
1068
return True # Try again later
448
# In case checker_command has exactly one % operator
449
command = self.checker_command % self.host
450
except TypeError:
451
# Escape attributes for the shell
452
escaped_attrs = dict((key,
453
re.escape(unicode(str(val),
454
errors=
455
u'replace')))
456
for key, val in
457
vars(self).iteritems())
458
try:
459
command = self.checker_command % escaped_attrs
460
except TypeError, error:
461
logger.error(u'Could not format string "%s":'
462
u' %s', self.checker_command, error)
463
return True # Try again later
1069
464
self.current_checker_command = command
1070
logger.info("Starting checker %r for %s", command,
1071
self.name)
1072
# We don't need to redirect stdout and stderr, since
1073
# in normal mode, that is already done by daemon(),
1074
# and in debug mode we don't want to. (Stdin is
1075
# always replaced by /dev/null.)
1076
# The exception is when not debugging but nevertheless
1077
# running in the foreground; use the previously
1078
# created wnull.
1079
popen_args = {"close_fds": True,
1080
"shell": True,
1081
"cwd": "/"}
1082
if (not self.server_settings["debug"]
1083
and self.server_settings["foreground"]):
1084
popen_args.update({"stdout": wnull,
1085
"stderr": wnull})
1086
pipe = multiprocessing.Pipe(duplex=False)
1087
self.checker = multiprocessing.Process(
1088
target=call_pipe,
1089
args=(pipe[1], subprocess.call, command),
1090
kwargs=popen_args)
1091
self.checker.start()
1092
self.checker_callback_tag = GLib.io_add_watch(
1093
pipe[0].fileno(), GLib.IO_IN,
1094
self.checker_callback, pipe[0], command)
1095
# Re-run this periodically if run by GLib.timeout_add
465
try:
466
logger.info(u"Starting checker %r for %s",
467
command, self.name)
468
# We don't need to redirect stdout and stderr, since
469
# in normal mode, that is already done by daemon(),
470
# and in debug mode we don't want to. (Stdin is
471
# always replaced by /dev/null.)
472
self.checker = subprocess.Popen(command,
473
close_fds=True,
474
shell=True, cwd=u"/")
475
self.checker_callback_tag = (gobject.child_watch_add
476
(self.checker.pid,
477
self.checker_callback,
478
data=command))
479
# The checker may have completed before the gobject
480
# watch was added. Check for this.
481
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
482
if pid:
483
gobject.source_remove(self.checker_callback_tag)
484
self.checker_callback(pid, status, command)
485
except OSError, error:
486
logger.error(u"Failed to start subprocess: %s",
487
error)
488
# Re-run this periodically if run by gobject.timeout_add
1096
489
return True
1097
490
1098
491
def stop_checker(self):
1099
492
"""Force the checker process, if any, to stop."""
1100
493
if self.checker_callback_tag:
1101
GLib.source_remove(self.checker_callback_tag)
494
gobject.source_remove(self.checker_callback_tag)
1102
495
self.checker_callback_tag = None
1103
if getattr(self, "checker", None) is None:
496
if getattr(self, u"checker", None) is None:
1104
497
return
1105
logger.debug("Stopping checker for %(name)s", vars(self))
1106
self.checker.terminate()
498
logger.debug(u"Stopping checker for %(name)s", vars(self))
499
try:
500
os.kill(self.checker.pid, signal.SIGTERM)
501
#time.sleep(0.5)
502
#if self.checker.poll() is None:
503
# os.kill(self.checker.pid, signal.SIGKILL)
504
except OSError, error:
505
if error.errno != errno.ESRCH: # No such process
506
raise
1107
507
self.checker = None
1108
508
1109
1110
def dbus_service_property(dbus_interface,
1111
signature="v",
1112
access="readwrite",
1113
byte_arrays=False):
509
def dbus_service_property(dbus_interface, signature=u"v",
510
access=u"readwrite", byte_arrays=False):
1114
511
"""Decorators for marking methods of a DBusObjectWithProperties to
1115
512
become properties on the D-Bus.
1116
513
1117
514
The decorated method will be called with no arguments by "Get"
1118
515
and with one argument by "Set".
1119
516
1120
517
The parameters, where they are supported, are the same as
1121
518
dbus.service.method, except there is only "signature", since the
1122
519
type from Get() and the type sent to Set() is the same.
1123
520
"""
1124
521
# Encoding deeply encoded byte arrays is not supported yet by the
1125
522
# "Set" method, so we fail early here:
1126
if byte_arrays and signature != "ay":
1127
raise ValueError("Byte arrays not supported for non-'ay'"
1128
" signature {!r}".format(signature))
1129
523
if byte_arrays and signature != u"ay":
524
raise ValueError(u"Byte arrays not supported for non-'ay'"
525
u" signature %r" % signature)
1130
526
def decorator(func):
1131
527
func._dbus_is_property = True
1132
528
func._dbus_interface = dbus_interface
1133
529
func._dbus_signature = signature
1134
530
func._dbus_access = access
1135
531
func._dbus_name = func.__name__
1136
if func._dbus_name.endswith("_dbus_property"):
532
if func._dbus_name.endswith(u"_dbus_property"):
1137
533
func._dbus_name = func._dbus_name[:-14]
1138
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1139
return func
1140
1141
return decorator
1142
1143
1144
def dbus_interface_annotations(dbus_interface):
1145
"""Decorator for marking functions returning interface annotations
1146
1147
Usage:
1148
1149
@dbus_interface_annotations("org.example.Interface")
1150
def _foo(self): # Function name does not matter
1151
return {"org.freedesktop.DBus.Deprecated": "true",
1152
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1153
"false"}
1154
"""
1155
1156
def decorator(func):
1157
func._dbus_is_interface = True
1158
func._dbus_interface = dbus_interface
1159
func._dbus_name = dbus_interface
1160
return func
1161
1162
return decorator
1163
1164
1165
def dbus_annotations(annotations):
1166
"""Decorator to annotate D-Bus methods, signals or properties
1167
Usage:
1168
1169
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1170
"org.freedesktop.DBus.Property."
1171
"EmitsChangedSignal": "false"})
1172
@dbus_service_property("org.example.Interface", signature="b",
1173
access="r")
1174
def Property_dbus_property(self):
1175
return dbus.Boolean(False)
1176
1177
See also the DBusObjectWithAnnotations class.
1178
"""
1179
1180
def decorator(func):
1181
func._dbus_annotations = annotations
1182
return func
1183
534
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
535
return func
1184
536
return decorator
1185
537
1186
538
1187
539
class DBusPropertyException(dbus.exceptions.DBusException):
1188
540
"""A base class for D-Bus property-related exceptions
1189
541
"""
1190
pass
542
def __unicode__(self):
543
return unicode(str(self))
1191
544
1192
545
1193
546
class DBusPropertyAccessException(DBusPropertyException):
1202
555
pass
1203
556
1204
557
1205
class DBusObjectWithAnnotations(dbus.service.Object):
1206
"""A D-Bus object with annotations.
1207
1208
Classes inheriting from this can use the dbus_annotations
1209
decorator to add annotations to methods or signals.
1210
"""
1211
1212
@staticmethod
1213
def _is_dbus_thing(thing):
1214
"""Returns a function testing if an attribute is a D-Bus thing
1215
1216
If called like _is_dbus_thing("method") it returns a function
1217
suitable for use as predicate to inspect.getmembers().
1218
"""
1219
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1220
False)
1221
1222
def _get_all_dbus_things(self, thing):
1223
"""Returns a generator of (name, attribute) pairs
1224
"""
1225
return ((getattr(athing.__get__(self), "_dbus_name", name),
1226
athing.__get__(self))
1227
for cls in self.__class__.__mro__
1228
for name, athing in
1229
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1230
1231
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1232
out_signature="s",
1233
path_keyword='object_path',
1234
connection_keyword='connection')
1235
def Introspect(self, object_path, connection):
1236
"""Overloading of standard D-Bus method.
1237
1238
Inserts annotation tags on methods and signals.
1239
"""
1240
xmlstring = dbus.service.Object.Introspect(self, object_path,
1241
connection)
1242
try:
1243
document = xml.dom.minidom.parseString(xmlstring)
1244
1245
for if_tag in document.getElementsByTagName("interface"):
1246
# Add annotation tags
1247
for typ in ("method", "signal"):
1248
for tag in if_tag.getElementsByTagName(typ):
1249
annots = dict()
1250
for name, prop in (self.
1251
_get_all_dbus_things(typ)):
1252
if (name == tag.getAttribute("name")
1253
and prop._dbus_interface
1254
== if_tag.getAttribute("name")):
1255
annots.update(getattr(
1256
prop, "_dbus_annotations", {}))
1257
for name, value in annots.items():
1258
ann_tag = document.createElement(
1259
"annotation")
1260
ann_tag.setAttribute("name", name)
1261
ann_tag.setAttribute("value", value)
1262
tag.appendChild(ann_tag)
1263
# Add interface annotation tags
1264
for annotation, value in dict(
1265
itertools.chain.from_iterable(
1266
annotations().items()
1267
for name, annotations
1268
in self._get_all_dbus_things("interface")
1269
if name == if_tag.getAttribute("name")
1270
)).items():
1271
ann_tag = document.createElement("annotation")
1272
ann_tag.setAttribute("name", annotation)
1273
ann_tag.setAttribute("value", value)
1274
if_tag.appendChild(ann_tag)
1275
# Fix argument name for the Introspect method itself
1276
if (if_tag.getAttribute("name")
1277
== dbus.INTROSPECTABLE_IFACE):
1278
for cn in if_tag.getElementsByTagName("method"):
1279
if cn.getAttribute("name") == "Introspect":
1280
for arg in cn.getElementsByTagName("arg"):
1281
if (arg.getAttribute("direction")
1282
== "out"):
1283
arg.setAttribute("name",
1284
"xml_data")
1285
xmlstring = document.toxml("utf-8")
1286
document.unlink()
1287
except (AttributeError, xml.dom.DOMException,
1288
xml.parsers.expat.ExpatError) as error:
1289
logger.error("Failed to override Introspection method",
1290
exc_info=error)
1291
return xmlstring
1292
1293
1294
class DBusObjectWithProperties(DBusObjectWithAnnotations):
558
class DBusObjectWithProperties(dbus.service.Object):
1295
559
"""A D-Bus object with properties.
1296
560
1297
561
Classes inheriting from this can use the dbus_service_property
1298
562
decorator to expose methods as D-Bus properties. It exposes the
1299
563
standard Get(), Set(), and GetAll() methods on the D-Bus.
1300
564
"""
1301
565
566
@staticmethod
567
def _is_dbus_property(obj):
568
return getattr(obj, u"_dbus_is_property", False)
569
570
def _get_all_dbus_properties(self):
571
"""Returns a generator of (name, attribute) pairs
572
"""
573
return ((prop._dbus_name, prop)
574
for name, prop in
575
inspect.getmembers(self, self._is_dbus_property))
576
1302
577
def _get_dbus_property(self, interface_name, property_name):
1303
578
"""Returns a bound method if one exists which is a D-Bus
1304
579
property with the specified name and interface.
1305
580
"""
1306
for cls in self.__class__.__mro__:
1307
for name, value in inspect.getmembers(
1308
cls, self._is_dbus_thing("property")):
1309
if (value._dbus_name == property_name
1310
and value._dbus_interface == interface_name):
1311
return value.__get__(self)
1312
581
for name in (property_name,
582
property_name + u"_dbus_property"):
583
prop = getattr(self, name, None)
584
if (prop is None
585
or not self._is_dbus_property(prop)
586
or prop._dbus_name != property_name
587
or (interface_name and prop._dbus_interface
588
and interface_name != prop._dbus_interface)):
589
continue
590
return prop
1313
591
# No such property
1314
raise DBusPropertyNotFound("{}:{}.{}".format(
1315
self.dbus_object_path, interface_name, property_name))
1316
1317
@classmethod
1318
def _get_all_interface_names(cls):
1319
"""Get a sequence of all interfaces supported by an object"""
1320
return (name for name in set(getattr(getattr(x, attr),
1321
"_dbus_interface", None)
1322
for x in (inspect.getmro(cls))
1323
for attr in dir(x))
1324
if name is not None)
1325
1326
@dbus.service.method(dbus.PROPERTIES_IFACE,
1327
in_signature="ss",
1328
out_signature="v")
592
raise DBusPropertyNotFound(self.dbus_object_path + u":"
593
+ interface_name + u"."
594
+ property_name)
595
596
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
597
out_signature=u"v")
1329
598
def Get(self, interface_name, property_name):
1330
599
"""Standard D-Bus property Get() method, see D-Bus standard.
1331
600
"""
1332
601
prop = self._get_dbus_property(interface_name, property_name)
1333
if prop._dbus_access == "write":
602
if prop._dbus_access == u"write":
1334
603
raise DBusPropertyAccessException(property_name)
1335
604
value = prop()
1336
if not hasattr(value, "variant_level"):
605
if not hasattr(value, u"variant_level"):
1337
606
return value
1338
607
return type(value)(value, variant_level=value.variant_level+1)
1339
1340
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
608
609
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
1341
610
def Set(self, interface_name, property_name, value):
1342
611
"""Standard D-Bus property Set() method, see D-Bus standard.
1343
612
"""
1344
613
prop = self._get_dbus_property(interface_name, property_name)
1345
if prop._dbus_access == "read":
614
if prop._dbus_access == u"read":
1346
615
raise DBusPropertyAccessException(property_name)
1347
if prop._dbus_get_args_options["byte_arrays"]:
616
if prop._dbus_get_args_options[u"byte_arrays"]:
1348
617
# The byte_arrays option is not supported yet on
1349
618
# signatures other than "ay".
1350
if prop._dbus_signature != "ay":
1351
raise ValueError("Byte arrays not supported for non-"
1352
"'ay' signature {!r}"
1353
.format(prop._dbus_signature))
1354
value = dbus.ByteArray(b''.join(chr(byte)
1355
for byte in value))
619
if prop._dbus_signature != u"ay":
620
raise ValueError
621
value = dbus.ByteArray(''.join(unichr(byte)
622
for byte in value))
1356
623
prop(value)
1357
1358
@dbus.service.method(dbus.PROPERTIES_IFACE,
1359
in_signature="s",
1360
out_signature="a{sv}")
624
625
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
626
out_signature=u"a{sv}")
1361
627
def GetAll(self, interface_name):
1362
628
"""Standard D-Bus property GetAll() method, see D-Bus
1363
629
standard.
1364
630
1365
631
Note: Will not include properties with access="write".
1366
632
"""
1367
properties = {}
1368
for name, prop in self._get_all_dbus_things("property"):
633
all = {}
634
for name, prop in self._get_all_dbus_properties():
1369
635
if (interface_name
1370
636
and interface_name != prop._dbus_interface):
1371
637
# Interface non-empty but did not match
1372
638
continue
1373
639
# Ignore write-only properties
1374
if prop._dbus_access == "write":
640
if prop._dbus_access == u"write":
1375
641
continue
1376
642
value = prop()
1377
if not hasattr(value, "variant_level"):
1378
properties[name] = value
643
if not hasattr(value, u"variant_level"):
644
all[name] = value
1379
645
continue
1380
properties[name] = type(value)(
1381
value, variant_level=value.variant_level + 1)
1382
return dbus.Dictionary(properties, signature="sv")
1383
1384
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1385
def PropertiesChanged(self, interface_name, changed_properties,
1386
invalidated_properties):
1387
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1388
standard.
1389
"""
1390
pass
1391
646
all[name] = type(value)(value, variant_level=
647
value.variant_level+1)
648
return dbus.Dictionary(all, signature=u"sv")
649
1392
650
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1393
out_signature="s",
651
out_signature=u"s",
1394
652
path_keyword='object_path',
1395
653
connection_keyword='connection')
1396
654
def Introspect(self, object_path, connection):
1397
"""Overloading of standard D-Bus method.
1398
1399
Inserts property tags and interface annotation tags.
655
"""Standard D-Bus method, overloaded to insert property tags.
1400
656
"""
1401
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1402
object_path,
1403
connection)
657
xmlstring = dbus.service.Object.Introspect(self, object_path,
658
connection)
1404
659
try:
1405
660
document = xml.dom.minidom.parseString(xmlstring)
1406
1407
661
def make_tag(document, name, prop):
1408
e = document.createElement("property")
1409
e.setAttribute("name", name)
1410
e.setAttribute("type", prop._dbus_signature)
1411
e.setAttribute("access", prop._dbus_access)
662
e = document.createElement(u"property")
663
e.setAttribute(u"name", name)
664
e.setAttribute(u"type", prop._dbus_signature)
665
e.setAttribute(u"access", prop._dbus_access)
1412
666
return e
1413
1414
for if_tag in document.getElementsByTagName("interface"):
1415
# Add property tags
667
for if_tag in document.getElementsByTagName(u"interface"):
1416
668
for tag in (make_tag(document, name, prop)
1417
669
for name, prop
1418
in self._get_all_dbus_things("property")
670
in self._get_all_dbus_properties()
1419
671
if prop._dbus_interface
1420
== if_tag.getAttribute("name")):
672
== if_tag.getAttribute(u"name")):
1421
673
if_tag.appendChild(tag)
1422
# Add annotation tags for properties
1423
for tag in if_tag.getElementsByTagName("property"):
1424
annots = dict()
1425
for name, prop in self._get_all_dbus_things(
1426
"property"):
1427
if (name == tag.getAttribute("name")
1428
and prop._dbus_interface
1429
== if_tag.getAttribute("name")):
1430
annots.update(getattr(
1431
prop, "_dbus_annotations", {}))
1432
for name, value in annots.items():
1433
ann_tag = document.createElement(
1434
"annotation")
1435
ann_tag.setAttribute("name", name)
1436
ann_tag.setAttribute("value", value)
1437
tag.appendChild(ann_tag)
1438
674
# Add the names to the return values for the
1439
675
# "org.freedesktop.DBus.Properties" methods
1440
if (if_tag.getAttribute("name")
1441
== "org.freedesktop.DBus.Properties"):
1442
for cn in if_tag.getElementsByTagName("method"):
1443
if cn.getAttribute("name") == "Get":
1444
for arg in cn.getElementsByTagName("arg"):
1445
if (arg.getAttribute("direction")
1446
== "out"):
1447
arg.setAttribute("name", "value")
1448
elif cn.getAttribute("name") == "GetAll":
1449
for arg in cn.getElementsByTagName("arg"):
1450
if (arg.getAttribute("direction")
1451
== "out"):
1452
arg.setAttribute("name", "props")
1453
xmlstring = document.toxml("utf-8")
1454
document.unlink()
1455
except (AttributeError, xml.dom.DOMException,
1456
xml.parsers.expat.ExpatError) as error:
1457
logger.error("Failed to override Introspection method",
1458
exc_info=error)
1459
return xmlstring
1460
1461
try:
1462
dbus.OBJECT_MANAGER_IFACE
1463
except AttributeError:
1464
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1465
1466
1467
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1468
"""A D-Bus object with an ObjectManager.
1469
1470
Classes inheriting from this exposes the standard
1471
GetManagedObjects call and the InterfacesAdded and
1472
InterfacesRemoved signals on the standard
1473
"org.freedesktop.DBus.ObjectManager" interface.
1474
1475
Note: No signals are sent automatically; they must be sent
1476
manually.
1477
"""
1478
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1479
out_signature="a{oa{sa{sv}}}")
1480
def GetManagedObjects(self):
1481
"""This function must be overridden"""
1482
raise NotImplementedError()
1483
1484
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1485
signature="oa{sa{sv}}")
1486
def InterfacesAdded(self, object_path, interfaces_and_properties):
1487
pass
1488
1489
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1490
def InterfacesRemoved(self, object_path, interfaces):
1491
pass
1492
1493
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1494
out_signature="s",
1495
path_keyword='object_path',
1496
connection_keyword='connection')
1497
def Introspect(self, object_path, connection):
1498
"""Overloading of standard D-Bus method.
1499
1500
Override return argument name of GetManagedObjects to be
1501
"objpath_interfaces_and_properties"
1502
"""
1503
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1504
object_path,
1505
connection)
1506
try:
1507
document = xml.dom.minidom.parseString(xmlstring)
1508
1509
for if_tag in document.getElementsByTagName("interface"):
1510
# Fix argument name for the GetManagedObjects method
1511
if (if_tag.getAttribute("name")
1512
== dbus.OBJECT_MANAGER_IFACE):
1513
for cn in if_tag.getElementsByTagName("method"):
1514
if (cn.getAttribute("name")
1515
== "GetManagedObjects"):
1516
for arg in cn.getElementsByTagName("arg"):
1517
if (arg.getAttribute("direction")
1518
== "out"):
1519
arg.setAttribute(
1520
"name",
1521
"objpath_interfaces"
1522
"_and_properties")
1523
xmlstring = document.toxml("utf-8")
1524
document.unlink()
1525
except (AttributeError, xml.dom.DOMException,
1526
xml.parsers.expat.ExpatError) as error:
1527
logger.error("Failed to override Introspection method",
1528
exc_info=error)
1529
return xmlstring
1530
1531
1532
def datetime_to_dbus(dt, variant_level=0):
1533
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1534
if dt is None:
1535
return dbus.String("", variant_level=variant_level)
1536
return dbus.String(dt.isoformat(), variant_level=variant_level)
1537
1538
1539
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1540
"""A class decorator; applied to a subclass of
1541
dbus.service.Object, it will add alternate D-Bus attributes with
1542
interface names according to the "alt_interface_names" mapping.
1543
Usage:
1544
1545
@alternate_dbus_interfaces({"org.example.Interface":
1546
"net.example.AlternateInterface"})
1547
class SampleDBusObject(dbus.service.Object):
1548
@dbus.service.method("org.example.Interface")
1549
def SampleDBusMethod():
1550
pass
1551
1552
The above "SampleDBusMethod" on "SampleDBusObject" will be
1553
reachable via two interfaces: "org.example.Interface" and
1554
"net.example.AlternateInterface", the latter of which will have
1555
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1556
"true", unless "deprecate" is passed with a False value.
1557
1558
This works for methods and signals, and also for D-Bus properties
1559
(from DBusObjectWithProperties) and interfaces (from the
1560
dbus_interface_annotations decorator).
1561
"""
1562
1563
def wrapper(cls):
1564
for orig_interface_name, alt_interface_name in (
1565
alt_interface_names.items()):
1566
attr = {}
1567
interface_names = set()
1568
# Go though all attributes of the class
1569
for attrname, attribute in inspect.getmembers(cls):
1570
# Ignore non-D-Bus attributes, and D-Bus attributes
1571
# with the wrong interface name
1572
if (not hasattr(attribute, "_dbus_interface")
1573
or not attribute._dbus_interface.startswith(
1574
orig_interface_name)):
1575
continue
1576
# Create an alternate D-Bus interface name based on
1577
# the current name
1578
alt_interface = attribute._dbus_interface.replace(
1579
orig_interface_name, alt_interface_name)
1580
interface_names.add(alt_interface)
1581
# Is this a D-Bus signal?
1582
if getattr(attribute, "_dbus_is_signal", False):
1583
# Extract the original non-method undecorated
1584
# function by black magic
1585
if sys.version_info.major == 2:
1586
nonmethod_func = (dict(
1587
zip(attribute.func_code.co_freevars,
1588
attribute.__closure__))
1589
["func"].cell_contents)
1590
else:
1591
nonmethod_func = (dict(
1592
zip(attribute.__code__.co_freevars,
1593
attribute.__closure__))
1594
["func"].cell_contents)
1595
# Create a new, but exactly alike, function
1596
# object, and decorate it to be a new D-Bus signal
1597
# with the alternate D-Bus interface name
1598
new_function = copy_function(nonmethod_func)
1599
new_function = (dbus.service.signal(
1600
alt_interface,
1601
attribute._dbus_signature)(new_function))
1602
# Copy annotations, if any
1603
try:
1604
new_function._dbus_annotations = dict(
1605
attribute._dbus_annotations)
1606
except AttributeError:
1607
pass
1608
1609
# Define a creator of a function to call both the
1610
# original and alternate functions, so both the
1611
# original and alternate signals gets sent when
1612
# the function is called
1613
def fixscope(func1, func2):
1614
"""This function is a scope container to pass
1615
func1 and func2 to the "call_both" function
1616
outside of its arguments"""
1617
1618
@functools.wraps(func2)
1619
def call_both(*args, **kwargs):
1620
"""This function will emit two D-Bus
1621
signals by calling func1 and func2"""
1622
func1(*args, **kwargs)
1623
func2(*args, **kwargs)
1624
# Make wrapper function look like a D-Bus
1625
# signal
1626
for name, attr in inspect.getmembers(func2):
1627
if name.startswith("_dbus_"):
1628
setattr(call_both, name, attr)
1629
1630
return call_both
1631
# Create the "call_both" function and add it to
1632
# the class
1633
attr[attrname] = fixscope(attribute, new_function)
1634
# Is this a D-Bus method?
1635
elif getattr(attribute, "_dbus_is_method", False):
1636
# Create a new, but exactly alike, function
1637
# object. Decorate it to be a new D-Bus method
1638
# with the alternate D-Bus interface name. Add it
1639
# to the class.
1640
attr[attrname] = (
1641
dbus.service.method(
1642
alt_interface,
1643
attribute._dbus_in_signature,
1644
attribute._dbus_out_signature)
1645
(copy_function(attribute)))
1646
# Copy annotations, if any
1647
try:
1648
attr[attrname]._dbus_annotations = dict(
1649
attribute._dbus_annotations)
1650
except AttributeError:
1651
pass
1652
# Is this a D-Bus property?
1653
elif getattr(attribute, "_dbus_is_property", False):
1654
# Create a new, but exactly alike, function
1655
# object, and decorate it to be a new D-Bus
1656
# property with the alternate D-Bus interface
1657
# name. Add it to the class.
1658
attr[attrname] = (dbus_service_property(
1659
alt_interface, attribute._dbus_signature,
1660
attribute._dbus_access,
1661
attribute._dbus_get_args_options
1662
["byte_arrays"])
1663
(copy_function(attribute)))
1664
# Copy annotations, if any
1665
try:
1666
attr[attrname]._dbus_annotations = dict(
1667
attribute._dbus_annotations)
1668
except AttributeError:
1669
pass
1670
# Is this a D-Bus interface?
1671
elif getattr(attribute, "_dbus_is_interface", False):
1672
# Create a new, but exactly alike, function
1673
# object. Decorate it to be a new D-Bus interface
1674
# with the alternate D-Bus interface name. Add it
1675
# to the class.
1676
attr[attrname] = (
1677
dbus_interface_annotations(alt_interface)
1678
(copy_function(attribute)))
1679
if deprecate:
1680
# Deprecate all alternate interfaces
1681
iname = "_AlternateDBusNames_interface_annotation{}"
1682
for interface_name in interface_names:
1683
1684
@dbus_interface_annotations(interface_name)
1685
def func(self):
1686
return {"org.freedesktop.DBus.Deprecated":
1687
"true"}
1688
# Find an unused name
1689
for aname in (iname.format(i)
1690
for i in itertools.count()):
1691
if aname not in attr:
1692
attr[aname] = func
1693
break
1694
if interface_names:
1695
# Replace the class with a new subclass of it with
1696
# methods, signals, etc. as created above.
1697
if sys.version_info.major == 2:
1698
cls = type(b"{}Alternate".format(cls.__name__),
1699
(cls, ), attr)
1700
else:
1701
cls = type("{}Alternate".format(cls.__name__),
1702
(cls, ), attr)
1703
return cls
1704
1705
return wrapper
1706
1707
1708
@alternate_dbus_interfaces({"se.recompile.Mandos":
1709
"se.bsnet.fukt.Mandos"})
676
if (if_tag.getAttribute(u"name")
677
== u"org.freedesktop.DBus.Properties"):
678
for cn in if_tag.getElementsByTagName(u"method"):
679
if cn.getAttribute(u"name") == u"Get":
680
for arg in cn.getElementsByTagName(u"arg"):
681
if (arg.getAttribute(u"direction")
682
== u"out"):
683
arg.setAttribute(u"name", u"value")
684
elif cn.getAttribute(u"name") == u"GetAll":
685
for arg in cn.getElementsByTagName(u"arg"):
686
if (arg.getAttribute(u"direction")
687
== u"out"):
688
arg.setAttribute(u"name", u"props")
689
xmlstring = document.toxml(u"utf-8")
690
document.unlink()
691
except (AttributeError, xml.dom.DOMException,
692
xml.parsers.expat.ExpatError), error:
693
logger.error(u"Failed to override Introspection method",
694
error)
695
return xmlstring
696
697
1710
698
class ClientDBus(Client, DBusObjectWithProperties):
1711
699
"""A Client class using D-Bus
1712
700
1713
701
Attributes:
1714
702
dbus_object_path: dbus.ObjectPath
1715
703
bus: dbus.SystemBus()
1716
704
"""
1717
1718
runtime_expansions = (Client.runtime_expansions
1719
+ ("dbus_object_path", ))
1720
1721
_interface = "se.recompile.Mandos.Client"
1722
1723
705
# dbus.service.Object doesn't use super(), so we can't either.
1724
1725
def __init__(self, bus=None, *args, **kwargs):
706
707
def __init__(self, bus = None, *args, **kwargs):
1726
708
self.bus = bus
1727
709
Client.__init__(self, *args, **kwargs)
1728
710
# Only now, when this client is initialized, can it show up on
1729
711
# the D-Bus
1730
client_object_name = str(self.name).translate(
1731
{ord("."): ord("_"),
1732
ord("-"): ord("_")})
1733
self.dbus_object_path = dbus.ObjectPath(
1734
"/clients/" + client_object_name)
712
self.dbus_object_path = (dbus.ObjectPath
713
(u"/clients/"
714
+ self.name.replace(u".", u"_")))
1735
715
DBusObjectWithProperties.__init__(self, self.bus,
1736
716
self.dbus_object_path)
1737
1738
def notifychangeproperty(transform_func, dbus_name,
1739
type_func=lambda x: x,
1740
variant_level=1,
1741
invalidate_only=False,
1742
_interface=_interface):
1743
""" Modify a variable so that it's a property which announces
1744
its changes to DBus.
1745
1746
transform_fun: Function that takes a value and a variant_level
1747
and transforms it to a D-Bus type.
1748
dbus_name: D-Bus name of the variable
1749
type_func: Function that transform the value before sending it
1750
to the D-Bus. Default: no transform
1751
variant_level: D-Bus variant level. Default: 1
1752
"""
1753
attrname = "_{}".format(dbus_name)
1754
1755
def setter(self, value):
1756
if hasattr(self, "dbus_object_path"):
1757
if (not hasattr(self, attrname) or
1758
type_func(getattr(self, attrname, None))
1759
!= type_func(value)):
1760
if invalidate_only:
1761
self.PropertiesChanged(
1762
_interface, dbus.Dictionary(),
1763
dbus.Array((dbus_name, )))
1764
else:
1765
dbus_value = transform_func(
1766
type_func(value),
1767
variant_level=variant_level)
1768
self.PropertyChanged(dbus.String(dbus_name),
1769
dbus_value)
1770
self.PropertiesChanged(
1771
_interface,
1772
dbus.Dictionary({dbus.String(dbus_name):
1773
dbus_value}),
1774
dbus.Array())
1775
setattr(self, attrname, value)
1776
1777
return property(lambda self: getattr(self, attrname), setter)
1778
1779
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1780
approvals_pending = notifychangeproperty(dbus.Boolean,
1781
"ApprovalPending",
1782
type_func=bool)
1783
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1784
last_enabled = notifychangeproperty(datetime_to_dbus,
1785
"LastEnabled")
1786
checker = notifychangeproperty(
1787
dbus.Boolean, "CheckerRunning",
1788
type_func=lambda checker: checker is not None)
1789
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1790
"LastCheckedOK")
1791
last_checker_status = notifychangeproperty(dbus.Int16,
1792
"LastCheckerStatus")
1793
last_approval_request = notifychangeproperty(
1794
datetime_to_dbus, "LastApprovalRequest")
1795
approved_by_default = notifychangeproperty(dbus.Boolean,
1796
"ApprovedByDefault")
1797
approval_delay = notifychangeproperty(
1798
dbus.UInt64, "ApprovalDelay",
1799
type_func=lambda td: td.total_seconds() * 1000)
1800
approval_duration = notifychangeproperty(
1801
dbus.UInt64, "ApprovalDuration",
1802
type_func=lambda td: td.total_seconds() * 1000)
1803
host = notifychangeproperty(dbus.String, "Host")
1804
timeout = notifychangeproperty(
1805
dbus.UInt64, "Timeout",
1806
type_func=lambda td: td.total_seconds() * 1000)
1807
extended_timeout = notifychangeproperty(
1808
dbus.UInt64, "ExtendedTimeout",
1809
type_func=lambda td: td.total_seconds() * 1000)
1810
interval = notifychangeproperty(
1811
dbus.UInt64, "Interval",
1812
type_func=lambda td: td.total_seconds() * 1000)
1813
checker_command = notifychangeproperty(dbus.String, "Checker")
1814
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1815
invalidate_only=True)
1816
1817
del notifychangeproperty
1818
717
718
@staticmethod
719
def _datetime_to_dbus(dt, variant_level=0):
720
"""Convert a UTC datetime.datetime() to a D-Bus type."""
721
return dbus.String(dt.isoformat(),
722
variant_level=variant_level)
723
724
def enable(self):
725
oldstate = getattr(self, u"enabled", False)
726
r = Client.enable(self)
727
if oldstate != self.enabled:
728
# Emit D-Bus signals
729
self.PropertyChanged(dbus.String(u"enabled"),
730
dbus.Boolean(True, variant_level=1))
731
self.PropertyChanged(
732
dbus.String(u"last_enabled"),
733
self._datetime_to_dbus(self.last_enabled,
734
variant_level=1))
735
return r
736
737
def disable(self, quiet = False):
738
oldstate = getattr(self, u"enabled", False)
739
r = Client.disable(self, quiet=quiet)
740
if not quiet and oldstate != self.enabled:
741
# Emit D-Bus signal
742
self.PropertyChanged(dbus.String(u"enabled"),
743
dbus.Boolean(False, variant_level=1))
744
return r
745
1819
746
def __del__(self, *args, **kwargs):
1820
747
try:
1821
748
self.remove_from_connection()
1822
749
except LookupError:
1823
750
pass
1824
if hasattr(DBusObjectWithProperties, "__del__"):
751
if hasattr(DBusObjectWithProperties, u"__del__"):
1825
752
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1826
753
Client.__del__(self, *args, **kwargs)
1827
1828
def checker_callback(self, source, condition,
1829
connection, command, *args, **kwargs):
1830
ret = Client.checker_callback(self, source, condition,
1831
connection, command, *args,
1832
**kwargs)
1833
exitstatus = self.last_checker_status
1834
if exitstatus >= 0:
754
755
def checker_callback(self, pid, condition, command,
756
*args, **kwargs):
757
self.checker_callback_tag = None
758
self.checker = None
759
# Emit D-Bus signal
760
self.PropertyChanged(dbus.String(u"checker_running"),
761
dbus.Boolean(False, variant_level=1))
762
if os.WIFEXITED(condition):
763
exitstatus = os.WEXITSTATUS(condition)
1835
764
# Emit D-Bus signal
1836
765
self.CheckerCompleted(dbus.Int16(exitstatus),
1837
# This is specific to GNU libC
1838
dbus.Int64(exitstatus << 8),
766
dbus.Int64(condition),
1839
767
dbus.String(command))
1840
768
else:
1841
769
# Emit D-Bus signal
1842
770
self.CheckerCompleted(dbus.Int16(-1),
1843
dbus.Int64(
1844
# This is specific to GNU libC
1845
(exitstatus << 8)
1846
| self.last_checker_signal),
771
dbus.Int64(condition),
1847
772
dbus.String(command))
1848
return ret
1849
773
774
return Client.checker_callback(self, pid, condition, command,
775
*args, **kwargs)
776
777
def checked_ok(self, *args, **kwargs):
778
r = Client.checked_ok(self, *args, **kwargs)
779
# Emit D-Bus signal
780
self.PropertyChanged(
781
dbus.String(u"last_checked_ok"),
782
(self._datetime_to_dbus(self.last_checked_ok,
783
variant_level=1)))
784
return r
785
1850
786
def start_checker(self, *args, **kwargs):
1851
old_checker_pid = getattr(self.checker, "pid", None)
787
old_checker = self.checker
788
if self.checker is not None:
789
old_checker_pid = self.checker.pid
790
else:
791
old_checker_pid = None
1852
792
r = Client.start_checker(self, *args, **kwargs)
1853
793
# Only if new checker process was started
1854
794
if (self.checker is not None
1855
795
and old_checker_pid != self.checker.pid):
1856
796
# Emit D-Bus signal
1857
797
self.CheckerStarted(self.current_checker_command)
798
self.PropertyChanged(
799
dbus.String(u"checker_running"),
800
dbus.Boolean(True, variant_level=1))
801
return r
802
803
def stop_checker(self, *args, **kwargs):
804
old_checker = getattr(self, u"checker", None)
805
r = Client.stop_checker(self, *args, **kwargs)
806
if (old_checker is not None
807
and getattr(self, u"checker", None) is None):
808
self.PropertyChanged(dbus.String(u"checker_running"),
809
dbus.Boolean(False, variant_level=1))
1858
810
return r
1859
811
1860
812
def _reset_approved(self):
1861
self.approved = None
813
self._approved = None
1862
814
return False
1863
815
1864
816
def approve(self, value=True):
1865
self.approved = value
1866
GLib.timeout_add(int(self.approval_duration.total_seconds()
1867
* 1000), self._reset_approved)
1868
self.send_changedstate()
1869
1870
# D-Bus methods, signals & properties
1871
1872
# Interfaces
1873
1874
# Signals
1875
817
self._approved = value
818
gobject.timeout_add(self._timedelta_to_milliseconds(self.approved_duration, self._reset_approved))
819
820
## D-Bus methods, signals & properties
821
_interface = u"se.bsnet.fukt.Mandos.Client"
822
823
## Signals
824
1876
825
# CheckerCompleted - signal
1877
@dbus.service.signal(_interface, signature="nxs")
826
@dbus.service.signal(_interface, signature=u"nxs")
1878
827
def CheckerCompleted(self, exitcode, waitstatus, command):
1879
828
"D-Bus signal"
1880
829
pass
1881
830
1882
831
# CheckerStarted - signal
1883
@dbus.service.signal(_interface, signature="s")
832
@dbus.service.signal(_interface, signature=u"s")
1884
833
def CheckerStarted(self, command):
1885
834
"D-Bus signal"
1886
835
pass
1887
836
1888
837
# PropertyChanged - signal
1889
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1890
@dbus.service.signal(_interface, signature="sv")
838
@dbus.service.signal(_interface, signature=u"sv")
1891
839
def PropertyChanged(self, property, value):
1892
840
"D-Bus signal"
1893
841
pass
1894
842
1895
843
# GotSecret - signal
1896
844
@dbus.service.signal(_interface)
1897
845
def GotSecret(self):
1898
"""D-Bus signal
1899
Is sent after a successful transfer of secret from the Mandos
1900
server to mandos-client
1901
"""
846
"D-Bus signal"
1902
847
pass
1903
848
1904
849
# Rejected - signal
1905
@dbus.service.signal(_interface, signature="s")
850
@dbus.service.signal(_interface, signature=u"s")
1906
851
def Rejected(self, reason):
1907
852
"D-Bus signal"
1908
853
pass
1909
854
1910
855
# NeedApproval - signal
1911
@dbus.service.signal(_interface, signature="tb")
856
@dbus.service.signal(_interface, signature=u"db")
1912
857
def NeedApproval(self, timeout, default):
1913
858
"D-Bus signal"
1914
return self.need_approval()
1915
1916
# Methods
859
pass
860
861
## Methods
1917
862
1918
863
# Approve - method
1919
@dbus.service.method(_interface, in_signature="b")
864
@dbus.service.method(_interface, in_signature=u"b")
1920
865
def Approve(self, value):
1921
866
self.approve(value)
1922
867
1923
868
# CheckedOK - method
1924
869
@dbus.service.method(_interface)
1925
870
def CheckedOK(self):
1926
self.checked_ok()
1927
871
return self.checked_ok()
872
1928
873
# Enable - method
1929
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1930
874
@dbus.service.method(_interface)
1931
875
def Enable(self):
1932
876
"D-Bus method"
1933
877
self.enable()
1934
878
1935
879
# StartChecker - method
1936
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1937
880
@dbus.service.method(_interface)
1938
881
def StartChecker(self):
1939
882
"D-Bus method"
1940
883
self.start_checker()
1941
884
1942
885
# Disable - method
1943
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1944
886
@dbus.service.method(_interface)
1945
887
def Disable(self):
1946
888
"D-Bus method"
1947
889
self.disable()
1948
890
1949
891
# StopChecker - method
1950
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1951
892
@dbus.service.method(_interface)
1952
893
def StopChecker(self):
1953
894
self.stop_checker()
1954
1955
# Properties
1956
1957
# ApprovalPending - property
1958
@dbus_service_property(_interface, signature="b", access="read")
1959
def ApprovalPending_dbus_property(self):
1960
return dbus.Boolean(bool(self.approvals_pending))
1961
1962
# ApprovedByDefault - property
1963
@dbus_service_property(_interface,
1964
signature="b",
1965
access="readwrite")
1966
def ApprovedByDefault_dbus_property(self, value=None):
1967
if value is None: # get
1968
return dbus.Boolean(self.approved_by_default)
1969
self.approved_by_default = bool(value)
1970
1971
# ApprovalDelay - property
1972
@dbus_service_property(_interface,
1973
signature="t",
1974
access="readwrite")
1975
def ApprovalDelay_dbus_property(self, value=None):
1976
if value is None: # get
1977
return dbus.UInt64(self.approval_delay.total_seconds()
1978
* 1000)
1979
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1980
1981
# ApprovalDuration - property
1982
@dbus_service_property(_interface,
1983
signature="t",
1984
access="readwrite")
1985
def ApprovalDuration_dbus_property(self, value=None):
1986
if value is None: # get
1987
return dbus.UInt64(self.approval_duration.total_seconds()
1988
* 1000)
1989
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1990
1991
# Name - property
1992
@dbus_annotations(
1993
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1994
@dbus_service_property(_interface, signature="s", access="read")
1995
def Name_dbus_property(self):
895
896
## Properties
897
898
# xxx 3 new properties
899
900
# name - property
901
@dbus_service_property(_interface, signature=u"s", access=u"read")
902
def name_dbus_property(self):
1996
903
return dbus.String(self.name)
1997
1998
# Fingerprint - property
1999
@dbus_annotations(
2000
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2001
@dbus_service_property(_interface, signature="s", access="read")
2002
def Fingerprint_dbus_property(self):
904
905
# fingerprint - property
906
@dbus_service_property(_interface, signature=u"s", access=u"read")
907
def fingerprint_dbus_property(self):
2003
908
return dbus.String(self.fingerprint)
2004
2005
# Host - property
2006
@dbus_service_property(_interface,
2007
signature="s",
2008
access="readwrite")
2009
def Host_dbus_property(self, value=None):
909
910
# host - property
911
@dbus_service_property(_interface, signature=u"s",
912
access=u"readwrite")
913
def host_dbus_property(self, value=None):
2010
914
if value is None: # get
2011
915
return dbus.String(self.host)
2012
self.host = str(value)
2013
2014
# Created - property
2015
@dbus_annotations(
2016
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2017
@dbus_service_property(_interface, signature="s", access="read")
2018
def Created_dbus_property(self):
2019
return datetime_to_dbus(self.created)
2020
2021
# LastEnabled - property
2022
@dbus_service_property(_interface, signature="s", access="read")
2023
def LastEnabled_dbus_property(self):
2024
return datetime_to_dbus(self.last_enabled)
2025
2026
# Enabled - property
2027
@dbus_service_property(_interface,
2028
signature="b",
2029
access="readwrite")
2030
def Enabled_dbus_property(self, value=None):
916
self.host = value
917
# Emit D-Bus signal
918
self.PropertyChanged(dbus.String(u"host"),
919
dbus.String(value, variant_level=1))
920
921
# created - property
922
@dbus_service_property(_interface, signature=u"s", access=u"read")
923
def created_dbus_property(self):
924
return dbus.String(self._datetime_to_dbus(self.created))
925
926
# last_enabled - property
927
@dbus_service_property(_interface, signature=u"s", access=u"read")
928
def last_enabled_dbus_property(self):
929
if self.last_enabled is None:
930
return dbus.String(u"")
931
return dbus.String(self._datetime_to_dbus(self.last_enabled))
932
933
# enabled - property
934
@dbus_service_property(_interface, signature=u"b",
935
access=u"readwrite")
936
def enabled_dbus_property(self, value=None):
2031
937
if value is None: # get
2032
938
return dbus.Boolean(self.enabled)
2033
939
if value:
2034
940
self.enable()
2035
941
else:
2036
942
self.disable()
2037
2038
# LastCheckedOK - property
2039
@dbus_service_property(_interface,
2040
signature="s",
2041
access="readwrite")
2042
def LastCheckedOK_dbus_property(self, value=None):
943
944
# last_checked_ok - property
945
@dbus_service_property(_interface, signature=u"s",
946
access=u"readwrite")
947
def last_checked_ok_dbus_property(self, value=None):
2043
948
if value is not None:
2044
949
self.checked_ok()
2045
950
return
2046
return datetime_to_dbus(self.last_checked_ok)
2047
2048
# LastCheckerStatus - property
2049
@dbus_service_property(_interface, signature="n", access="read")
2050
def LastCheckerStatus_dbus_property(self):
2051
return dbus.Int16(self.last_checker_status)
2052
2053
# Expires - property
2054
@dbus_service_property(_interface, signature="s", access="read")
2055
def Expires_dbus_property(self):
2056
return datetime_to_dbus(self.expires)
2057
2058
# LastApprovalRequest - property
2059
@dbus_service_property(_interface, signature="s", access="read")
2060
def LastApprovalRequest_dbus_property(self):
2061
return datetime_to_dbus(self.last_approval_request)
2062
2063
# Timeout - property
2064
@dbus_service_property(_interface,
2065
signature="t",
2066
access="readwrite")
2067
def Timeout_dbus_property(self, value=None):
951
if self.last_checked_ok is None:
952
return dbus.String(u"")
953
return dbus.String(self._datetime_to_dbus(self
954
.last_checked_ok))
955
956
# timeout - property
957
@dbus_service_property(_interface, signature=u"t",
958
access=u"readwrite")
959
def timeout_dbus_property(self, value=None):
2068
960
if value is None: # get
2069
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2070
old_timeout = self.timeout
961
return dbus.UInt64(self.timeout_milliseconds())
2071
962
self.timeout = datetime.timedelta(0, 0, 0, value)
2072
# Reschedule disabling
2073
if self.enabled:
2074
now = datetime.datetime.utcnow()
2075
self.expires += self.timeout - old_timeout
2076
if self.expires <= now:
2077
# The timeout has passed
2078
self.disable()
2079
else:
2080
if (getattr(self, "disable_initiator_tag", None)
2081
is None):
2082
return
2083
GLib.source_remove(self.disable_initiator_tag)
2084
self.disable_initiator_tag = GLib.timeout_add(
2085
int((self.expires - now).total_seconds() * 1000),
2086
self.disable)
2087
2088
# ExtendedTimeout - property
2089
@dbus_service_property(_interface,
2090
signature="t",
2091
access="readwrite")
2092
def ExtendedTimeout_dbus_property(self, value=None):
2093
if value is None: # get
2094
return dbus.UInt64(self.extended_timeout.total_seconds()
2095
* 1000)
2096
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2097
2098
# Interval - property
2099
@dbus_service_property(_interface,
2100
signature="t",
2101
access="readwrite")
2102
def Interval_dbus_property(self, value=None):
2103
if value is None: # get
2104
return dbus.UInt64(self.interval.total_seconds() * 1000)
963
# Emit D-Bus signal
964
self.PropertyChanged(dbus.String(u"timeout"),
965
dbus.UInt64(value, variant_level=1))
966
if getattr(self, u"disable_initiator_tag", None) is None:
967
return
968
# Reschedule timeout
969
gobject.source_remove(self.disable_initiator_tag)
970
self.disable_initiator_tag = None
971
time_to_die = (self.
972
_timedelta_to_milliseconds((self
973
.last_checked_ok
974
+ self.timeout)
975
- datetime.datetime
976
.utcnow()))
977
if time_to_die <= 0:
978
# The timeout has passed
979
self.disable()
980
else:
981
self.disable_initiator_tag = (gobject.timeout_add
982
(time_to_die, self.disable))
983
984
# interval - property
985
@dbus_service_property(_interface, signature=u"t",
986
access=u"readwrite")
987
def interval_dbus_property(self, value=None):
988
if value is None: # get
989
return dbus.UInt64(self.interval_milliseconds())
2105
990
self.interval = datetime.timedelta(0, 0, 0, value)
2106
if getattr(self, "checker_initiator_tag", None) is None:
991
# Emit D-Bus signal
992
self.PropertyChanged(dbus.String(u"interval"),
993
dbus.UInt64(value, variant_level=1))
994
if getattr(self, u"checker_initiator_tag", None) is None:
2107
995
return
2108
if self.enabled:
2109
# Reschedule checker run
2110
GLib.source_remove(self.checker_initiator_tag)
2111
self.checker_initiator_tag = GLib.timeout_add(
2112
value, self.start_checker)
2113
self.start_checker() # Start one now, too
996
# Reschedule checker run
997
gobject.source_remove(self.checker_initiator_tag)
998
self.checker_initiator_tag = (gobject.timeout_add
999
(value, self.start_checker))
1000
self.start_checker() # Start one now, too
2114
1001
2115
# Checker - property
2116
@dbus_service_property(_interface,
2117
signature="s",
2118
access="readwrite")
2119
def Checker_dbus_property(self, value=None):
1002
# checker - property
1003
@dbus_service_property(_interface, signature=u"s",
1004
access=u"readwrite")
1005
def checker_dbus_property(self, value=None):
2120
1006
if value is None: # get
2121
1007
return dbus.String(self.checker_command)
2122
self.checker_command = str(value)
2123
2124
# CheckerRunning - property
2125
@dbus_service_property(_interface,
2126
signature="b",
2127
access="readwrite")
2128
def CheckerRunning_dbus_property(self, value=None):
1008
self.checker_command = value
1009
# Emit D-Bus signal
1010
self.PropertyChanged(dbus.String(u"checker"),
1011
dbus.String(self.checker_command,
1012
variant_level=1))
1013
1014
# checker_running - property
1015
@dbus_service_property(_interface, signature=u"b",
1016
access=u"readwrite")
1017
def checker_running_dbus_property(self, value=None):
2129
1018
if value is None: # get
2130
1019
return dbus.Boolean(self.checker is not None)
2131
1020
if value:
2132
1021
self.start_checker()
2133
1022
else:
2134
1023
self.stop_checker()
2135
2136
# ObjectPath - property
2137
@dbus_annotations(
2138
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2139
"org.freedesktop.DBus.Deprecated": "true"})
2140
@dbus_service_property(_interface, signature="o", access="read")
2141
def ObjectPath_dbus_property(self):
2142
return self.dbus_object_path # is already a dbus.ObjectPath
2143
2144
# Secret = property
2145
@dbus_annotations(
2146
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2147
"invalidates"})
2148
@dbus_service_property(_interface,
2149
signature="ay",
2150
access="write",
2151
byte_arrays=True)
2152
def Secret_dbus_property(self, value):
2153
self.secret = bytes(value)
2154
1024
1025
# object_path - property
1026
@dbus_service_property(_interface, signature=u"o", access=u"read")
1027
def object_path_dbus_property(self):
1028
return self.dbus_object_path # is already a dbus.ObjectPath
1029
1030
# secret = property
1031
@dbus_service_property(_interface, signature=u"ay",
1032
access=u"write", byte_arrays=True)
1033
def secret_dbus_property(self, value):
1034
self.secret = str(value)
1035
2155
1036
del _interface
2156
1037
2157
1038
2160
1041
self._pipe = child_pipe
2161
1042
self._pipe.send(('init', fpr, address))
2162
1043
if not self._pipe.recv():
2163
raise KeyError(fpr)
1044
raise KeyError()
2164
1045
2165
1046
def __getattribute__(self, name):
2166
if name == '_pipe':
1047
if(name == '_pipe'):
2167
1048
return super(ProxyClient, self).__getattribute__(name)
2168
1049
self._pipe.send(('getattr', name))
2169
1050
data = self._pipe.recv()
2170
1051
if data[0] == 'data':
2171
1052
return data[1]
2172
1053
if data[0] == 'function':
2173
2174
1054
def func(*args, **kwargs):
2175
1055
self._pipe.send(('funcall', name, args, kwargs))
2176
1056
return self._pipe.recv()[1]
2177
2178
1057
return func
2179
1058
2180
1059
def __setattr__(self, name, value):
2181
if name == '_pipe':
1060
if(name == '_pipe'):
2182
1061
return super(ProxyClient, self).__setattr__(name, value)
2183
1062
self._pipe.send(('setattr', name, value))
2184
1063
2185
1064
2186
1065
class ClientHandler(socketserver.BaseRequestHandler, object):
2187
1066
"""A class to handle client connections.
2188
1067
2189
1068
Instantiated once for each connection to handle it.
2190
1069
Note: This will run in its own forked process."""
2191
1070
2192
1071
def handle(self):
2193
1072
with contextlib.closing(self.server.child_pipe) as child_pipe:
2194
logger.info("TCP connection from: %s",
2195
str(self.client_address))
2196
logger.debug("Pipe FD: %d",
1073
logger.info(u"TCP connection from: %s",
1074
unicode(self.client_address))
1075
logger.debug(u"Pipe FD: %d",
2197
1076
self.server.child_pipe.fileno())
2198
1077
2199
session = gnutls.ClientSession(self.request)
2200
2201
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2202
# "+AES-256-CBC", "+SHA1",
2203
# "+COMP-NULL", "+CTYPE-OPENPGP",
2204
# "+DHE-DSS"))
1078
session = (gnutls.connection
1079
.ClientSession(self.request,
1080
gnutls.connection
1081
.X509Credentials()))
1082
1083
# Note: gnutls.connection.X509Credentials is really a
1084
# generic GnuTLS certificate credentials object so long as
1085
# no X.509 keys are added to it. Therefore, we can use it
1086
# here despite using OpenPGP certificates.
1087
1088
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1089
# u"+AES-256-CBC", u"+SHA1",
1090
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1091
# u"+DHE-DSS"))
2205
1092
# Use a fallback default, since this MUST be set.
2206
1093
priority = self.server.gnutls_priority
2207
1094
if priority is None:
2208
priority = "NORMAL"
2209
gnutls.priority_set_direct(session._c_object,
2210
priority.encode("utf-8"),
2211
None)
1095
priority = u"NORMAL"
1096
(gnutls.library.functions
1097
.gnutls_priority_set_direct(session._c_object,
1098
priority, None))
2212
1099
2213
1100
# Start communication using the Mandos protocol
2214
1101
# Get protocol number
2215
1102
line = self.request.makefile().readline()
2216
logger.debug("Protocol version: %r", line)
1103
logger.debug(u"Protocol version: %r", line)
2217
1104
try:
2218
1105
if int(line.strip().split()[0]) > 1:
2219
raise RuntimeError(line)
2220
except (ValueError, IndexError, RuntimeError) as error:
2221
logger.error("Unknown protocol version: %s", error)
1106
raise RuntimeError
1107
except (ValueError, IndexError, RuntimeError), error:
1108
logger.error(u"Unknown protocol version: %s", error)
2222
1109
return
2223
1110
2224
1111
# Start GnuTLS connection
2225
1112
try:
2226
1113
session.handshake()
2227
except gnutls.Error as error:
2228
logger.warning("Handshake failed: %s", error)
1114
except gnutls.errors.GNUTLSError, error:
1115
logger.warning(u"Handshake failed: %s", error)
2229
1116
# Do not run session.bye() here: the session is not
2230
1117
# established. Just abandon the request.
2231
1118
return
2232
logger.debug("Handshake succeeded")
2233
2234
approval_required = False
1119
logger.debug(u"Handshake succeeded")
2235
1120
try:
2236
1121
try:
2237
fpr = self.fingerprint(
2238
self.peer_certificate(session))
2239
except (TypeError, gnutls.Error) as error:
2240
logger.warning("Bad certificate: %s", error)
1122
fpr = self.fingerprint(self.peer_certificate
1123
(session))
1124
except (TypeError, gnutls.errors.GNUTLSError), error:
1125
logger.warning(u"Bad certificate: %s", error)
2241
1126
return
2242
logger.debug("Fingerprint: %s", fpr)
1127
logger.debug(u"Fingerprint: %s", fpr)
2243
1128
2244
1129
try:
2245
1130
client = ProxyClient(child_pipe, fpr,
2246
1131
self.client_address)
2247
1132
except KeyError:
2248
1133
return
2249
2250
if client.approval_delay:
2251
delay = client.approval_delay
2252
client.approvals_pending += 1
2253
approval_required = True
2254
1134
1135
delay = client.approved_delay
2255
1136
while True:
2256
1137
if not client.enabled:
2257
logger.info("Client %s is disabled",
1138
logger.warning(u"Client %s is disabled",
1139
client.name)
1140
if self.server.use_dbus:
1141
# Emit D-Bus signal
1142
client.Rejected("Disabled")
1143
return
1144
if client._approved is None:
1145
logger.info(u"Client %s need approval",
2258
1146
client.name)
2259
1147
if self.server.use_dbus:
2260
1148
# Emit D-Bus signal
2261
client.Rejected("Disabled")
2262
return
2263
2264
if client.approved or not client.approval_delay:
2265
# We are approved or approval is disabled
1149
client.NeedApproval(
1150
client.approved_delay_milliseconds(),
1151
client.approved_by_default)
1152
elif client._approved:
1153
#We have a password and are approved
2266
1154
break
2267
elif client.approved is None:
2268
logger.info("Client %s needs approval",
2269
client.name)
2270
if self.server.use_dbus:
2271
# Emit D-Bus signal
2272
client.NeedApproval(
2273
client.approval_delay.total_seconds()
2274
* 1000, client.approved_by_default)
2275
1155
else:
2276
logger.warning("Client %s was not approved",
1156
logger.warning(u"Client %s was not approved",
2277
1157
client.name)
2278
1158
if self.server.use_dbus:
2279
# Emit D-Bus signal
2280
client.Rejected("Denied")
1159
# Emit D-Bus signal
1160
client.Rejected("Disapproved")
2281
1161
return
2282
2283
# wait until timeout or approved
1162
1163
#wait until timeout or approved
1164
#x = float(client._timedelta_to_milliseconds(delay))
2284
1165
time = datetime.datetime.now()
2285
1166
client.changedstate.acquire()
2286
client.changedstate.wait(delay.total_seconds())
1167
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
2287
1168
client.changedstate.release()
2288
1169
time2 = datetime.datetime.now()
2289
1170
if (time2 - time) >= delay:
2293
1174
client.name)
2294
1175
if self.server.use_dbus:
2295
1176
# Emit D-Bus signal
2296
client.Rejected("Approval timed out")
1177
client.Rejected("Time out")
2297
1178
return
2298
1179
else:
2299
1180
break
2300
1181
else:
2301
1182
delay -= time2 - time
2302
2303
try:
2304
session.send(client.secret)
2305
except gnutls.Error as error:
2306
logger.warning("gnutls send failed",
2307
exc_info=error)
2308
return
2309
2310
logger.info("Sending secret to %s", client.name)
2311
# bump the timeout using extended_timeout
2312
client.bump_timeout(client.extended_timeout)
1183
1184
sent_size = 0
1185
while sent_size < len(client.secret):
1186
# XXX handle session exception
1187
sent = session.send(client.secret[sent_size:])
1188
logger.debug(u"Sent: %d, remaining: %d",
1189
sent, len(client.secret)
1190
- (sent_size + sent))
1191
sent_size += sent
1192
1193
logger.info(u"Sending secret to %s", client.name)
1194
# bump the timeout as if seen
1195
client.checked_ok()
2313
1196
if self.server.use_dbus:
2314
1197
# Emit D-Bus signal
2315
1198
client.GotSecret()
2316
1199
2317
1200
finally:
2318
if approval_required:
2319
client.approvals_pending -= 1
2320
try:
2321
session.bye()
2322
except gnutls.Error as error:
2323
logger.warning("GnuTLS bye failed",
2324
exc_info=error)
2325
1201
session.bye()
1202
2326
1203
@staticmethod
2327
1204
def peer_certificate(session):
2328
1205
"Return the peer's OpenPGP certificate as a bytestring"
2329
1206
# If not an OpenPGP certificate...
2330
if (gnutls.certificate_type_get(session._c_object)
2331
!= gnutls.CRT_OPENPGP):
2332
# ...return invalid data
2333
return b""
1207
if (gnutls.library.functions
1208
.gnutls_certificate_type_get(session._c_object)
1209
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1210
# ...do the normal thing
1211
return session.peer_certificate
2334
1212
list_size = ctypes.c_uint(1)
2335
cert_list = (gnutls.certificate_get_peers
1213
cert_list = (gnutls.library.functions
1214
.gnutls_certificate_get_peers
2336
1215
(session._c_object, ctypes.byref(list_size)))
2337
1216
if not bool(cert_list) and list_size.value != 0:
2338
raise gnutls.Error("error getting peer certificate")
1217
raise gnutls.errors.GNUTLSError(u"error getting peer"
1218
u" certificate")
2339
1219
if list_size.value == 0:
2340
1220
return None
2341
1221
cert = cert_list[0]
2342
1222
return ctypes.string_at(cert.data, cert.size)
2343
1223
2344
1224
@staticmethod
2345
1225
def fingerprint(openpgp):
2346
1226
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2347
1227
# New GnuTLS "datum" with the OpenPGP public key
2348
datum = gnutls.datum_t(
2349
ctypes.cast(ctypes.c_char_p(openpgp),
2350
ctypes.POINTER(ctypes.c_ubyte)),
2351
ctypes.c_uint(len(openpgp)))
1228
datum = (gnutls.library.types
1229
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1230
ctypes.POINTER
1231
(ctypes.c_ubyte)),
1232
ctypes.c_uint(len(openpgp))))
2352
1233
# New empty GnuTLS certificate
2353
crt = gnutls.openpgp_crt_t()
2354
gnutls.openpgp_crt_init(ctypes.byref(crt))
1234
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1235
(gnutls.library.functions
1236
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2355
1237
# Import the OpenPGP public key into the certificate
2356
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2357
gnutls.OPENPGP_FMT_RAW)
1238
(gnutls.library.functions
1239
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1240
gnutls.library.constants
1241
.GNUTLS_OPENPGP_FMT_RAW))
2358
1242
# Verify the self signature in the key
2359
1243
crtverify = ctypes.c_uint()
2360
gnutls.openpgp_crt_verify_self(crt, 0,
2361
ctypes.byref(crtverify))
1244
(gnutls.library.functions
1245
.gnutls_openpgp_crt_verify_self(crt, 0,
1246
ctypes.byref(crtverify)))
2362
1247
if crtverify.value != 0:
2363
gnutls.openpgp_crt_deinit(crt)
2364
raise gnutls.CertificateSecurityError("Verify failed")
1248
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1249
raise (gnutls.errors.CertificateSecurityError
1250
(u"Verify failed"))
2365
1251
# New buffer for the fingerprint
2366
1252
buf = ctypes.create_string_buffer(20)
2367
1253
buf_len = ctypes.c_size_t()
2368
1254
# Get the fingerprint from the certificate into the buffer
2369
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2370
ctypes.byref(buf_len))
1255
(gnutls.library.functions
1256
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1257
ctypes.byref(buf_len)))
2371
1258
# Deinit the certificate
2372
gnutls.openpgp_crt_deinit(crt)
1259
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2373
1260
# Convert the buffer to a Python bytestring
2374
1261
fpr = ctypes.string_at(buf, buf_len.value)
2375
1262
# Convert the bytestring to hexadecimal notation
2376
hex_fpr = binascii.hexlify(fpr).upper()
1263
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
2377
1264
return hex_fpr
2378
1265
2379
1266
2380
1267
class MultiprocessingMixIn(object):
2381
1268
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2382
2383
1269
def sub_process_main(self, request, address):
2384
1270
try:
2385
1271
self.finish_request(request, address)
2386
except Exception:
1272
except:
2387
1273
self.handle_error(request, address)
2388
1274
self.close_request(request)
2389
1275
2390
1276
def process_request(self, request, address):
2391
1277
"""Start a new process to process the request."""
2392
proc = multiprocessing.Process(target=self.sub_process_main,
2393
args=(request, address))
2394
proc.start()
2395
return proc
2396
1278
multiprocessing.Process(target = self.sub_process_main,
1279
args = (request, address)).start()
2397
1280
2398
1281
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2399
1282
""" adds a pipe to the MixIn """
2400
2401
1283
def process_request(self, request, client_address):
2402
1284
"""Overrides and wraps the original process_request().
2403
1285
2404
1286
This function creates a new pipe in self.pipe
2405
1287
"""
2406
1288
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2407
1289
2408
proc = MultiprocessingMixIn.process_request(self, request,
2409
client_address)
2410
self.child_pipe.close()
2411
self.add_pipe(parent_pipe, proc)
2412
2413
def add_pipe(self, parent_pipe, proc):
1290
super(MultiprocessingMixInWithPipe,
1291
self).process_request(request, client_address)
1292
self.add_pipe(parent_pipe)
1293
def add_pipe(self, parent_pipe):
2414
1294
"""Dummy function; override as necessary"""
2415
raise NotImplementedError()
2416
1295
pass
2417
1296
2418
1297
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2419
1298
socketserver.TCPServer, object):
2420
1299
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2421
1300
2422
1301
Attributes:
2423
1302
enabled: Boolean; whether this server is activated yet
2424
1303
interface: None or a network interface name (string)
2425
1304
use_ipv6: Boolean; to use IPv6 or not
2426
1305
"""
2427
2428
1306
def __init__(self, server_address, RequestHandlerClass,
2429
interface=None,
2430
use_ipv6=True,
2431
socketfd=None):
2432
"""If socketfd is set, use that file descriptor instead of
2433
creating a new one with socket.socket().
2434
"""
1307
interface=None, use_ipv6=True):
2435
1308
self.interface = interface
2436
1309
if use_ipv6:
2437
1310
self.address_family = socket.AF_INET6
2438
if socketfd is not None:
2439
# Save the file descriptor
2440
self.socketfd = socketfd
2441
# Save the original socket.socket() function
2442
self.socket_socket = socket.socket
2443
2444
# To implement --socket, we monkey patch socket.socket.
2445
#
2446
# (When socketserver.TCPServer is a new-style class, we
2447
# could make self.socket into a property instead of monkey
2448
# patching socket.socket.)
2449
#
2450
# Create a one-time-only replacement for socket.socket()
2451
@functools.wraps(socket.socket)
2452
def socket_wrapper(*args, **kwargs):
2453
# Restore original function so subsequent calls are
2454
# not affected.
2455
socket.socket = self.socket_socket
2456
del self.socket_socket
2457
# This time only, return a new socket object from the
2458
# saved file descriptor.
2459
return socket.fromfd(self.socketfd, *args, **kwargs)
2460
# Replace socket.socket() function with wrapper
2461
socket.socket = socket_wrapper
2462
# The socketserver.TCPServer.__init__ will call
2463
# socket.socket(), which might be our replacement,
2464
# socket_wrapper(), if socketfd was set.
2465
1311
socketserver.TCPServer.__init__(self, server_address,
2466
1312
RequestHandlerClass)
2467
2468
1313
def server_bind(self):
2469
1314
"""This overrides the normal server_bind() function
2470
1315
to bind to an interface if one was specified, and also NOT to
2471
1316
bind to an address or port if they were not specified."""
2472
global SO_BINDTODEVICE
2473
1317
if self.interface is not None:
2474
1318
if SO_BINDTODEVICE is None:
2475
# Fall back to a hard-coded value which seems to be
2476
# common enough.
2477
logger.warning("SO_BINDTODEVICE not found, trying 25")
2478
SO_BINDTODEVICE = 25
2479
try:
2480
self.socket.setsockopt(
2481
socket.SOL_SOCKET, SO_BINDTODEVICE,
2482
(self.interface + "\0").encode("utf-8"))
2483
except socket.error as error:
2484
if error.errno == errno.EPERM:
2485
logger.error("No permission to bind to"
2486
" interface %s", self.interface)
2487
elif error.errno == errno.ENOPROTOOPT:
2488
logger.error("SO_BINDTODEVICE not available;"
2489
" cannot bind to interface %s",
2490
self.interface)
2491
elif error.errno == errno.ENODEV:
2492
logger.error("Interface %s does not exist,"
2493
" cannot bind", self.interface)
2494
else:
2495
raise
1319
logger.error(u"SO_BINDTODEVICE does not exist;"
1320
u" cannot bind to interface %s",
1321
self.interface)
1322
else:
1323
try:
1324
self.socket.setsockopt(socket.SOL_SOCKET,
1325
SO_BINDTODEVICE,
1326
str(self.interface
1327
+ u'\0'))
1328
except socket.error, error:
1329
if error[0] == errno.EPERM:
1330
logger.error(u"No permission to"
1331
u" bind to interface %s",
1332
self.interface)
1333
elif error[0] == errno.ENOPROTOOPT:
1334
logger.error(u"SO_BINDTODEVICE not available;"
1335
u" cannot bind to interface %s",
1336
self.interface)
1337
else:
1338
raise
2496
1339
# Only bind(2) the socket if we really need to.
2497
1340
if self.server_address[0] or self.server_address[1]:
2498
1341
if not self.server_address[0]:
2499
1342
if self.address_family == socket.AF_INET6:
2500
any_address = "::" # in6addr_any
1343
any_address = u"::" # in6addr_any
2501
1344
else:
2502
any_address = "0.0.0.0" # INADDR_ANY
1345
any_address = socket.INADDR_ANY
2503
1346
self.server_address = (any_address,
2504
1347
self.server_address[1])
2505
1348
elif not self.server_address[1]:
2506
self.server_address = (self.server_address[0], 0)
1349
self.server_address = (self.server_address[0],
1350
0)
2507
1351
# if self.interface:
2508
1352
# self.server_address = (self.server_address[0],
2509
1353
# 0, # port
2515
1359
2516
1360
class MandosServer(IPv6_TCPServer):
2517
1361
"""Mandos server.
2518
1362
2519
1363
Attributes:
2520
1364
clients: set of Client objects
2521
1365
gnutls_priority GnuTLS priority string
2522
1366
use_dbus: Boolean; to emit D-Bus signals or not
2523
2524
Assumes a GLib.MainLoop event loop.
1367
1368
Assumes a gobject.MainLoop event loop.
2525
1369
"""
2526
2527
1370
def __init__(self, server_address, RequestHandlerClass,
2528
interface=None,
2529
use_ipv6=True,
2530
clients=None,
2531
gnutls_priority=None,
2532
use_dbus=True,
2533
socketfd=None):
1371
interface=None, use_ipv6=True, clients=None,
1372
gnutls_priority=None, use_dbus=True):
2534
1373
self.enabled = False
2535
1374
self.clients = clients
2536
1375
if self.clients is None:
2537
self.clients = {}
1376
self.clients = set()
2538
1377
self.use_dbus = use_dbus
2539
1378
self.gnutls_priority = gnutls_priority
2540
1379
IPv6_TCPServer.__init__(self, server_address,
2541
1380
RequestHandlerClass,
2542
interface=interface,
2543
use_ipv6=use_ipv6,
2544
socketfd=socketfd)
2545
1381
interface = interface,
1382
use_ipv6 = use_ipv6)
2546
1383
def server_activate(self):
2547
1384
if self.enabled:
2548
1385
return socketserver.TCPServer.server_activate(self)
2549
2550
1386
def enable(self):
2551
1387
self.enabled = True
2552
2553
def add_pipe(self, parent_pipe, proc):
1388
def add_pipe(self, parent_pipe):
2554
1389
# Call "handle_ipc" for both data and EOF events
2555
GLib.io_add_watch(
2556
parent_pipe.fileno(),
2557
GLib.IO_IN | GLib.IO_HUP,
2558
functools.partial(self.handle_ipc,
2559
parent_pipe=parent_pipe,
2560
proc=proc))
2561
2562
def handle_ipc(self, source, condition,
2563
parent_pipe=None,
2564
proc=None,
1390
gobject.io_add_watch(parent_pipe.fileno(),
1391
gobject.IO_IN | gobject.IO_HUP,
1392
functools.partial(self.handle_ipc,
1393
parent_pipe = parent_pipe))
1394
1395
def handle_ipc(self, source, condition, parent_pipe=None,
2565
1396
client_object=None):
2566
# error, or the other end of multiprocessing.Pipe has closed
2567
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2568
# Wait for other process to exit
2569
proc.join()
2570
return False
2571
1397
condition_names = {
1398
gobject.IO_IN: u"IN", # There is data to read.
1399
gobject.IO_OUT: u"OUT", # Data can be written (without
1400
# blocking).
1401
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1402
gobject.IO_ERR: u"ERR", # Error condition.
1403
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1404
# broken, usually for pipes and
1405
# sockets).
1406
}
1407
conditions_string = ' | '.join(name
1408
for cond, name in
1409
condition_names.iteritems()
1410
if cond & condition)
1411
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1412
conditions_string)
1413
2572
1414
# Read a request from the child
2573
1415
request = parent_pipe.recv()
2574
1416
command = request[0]
2575
1417
2576
1418
if command == 'init':
2577
1419
fpr = request[1]
2578
1420
address = request[2]
2579
2580
for c in self.clients.values():
1421
1422
for c in self.clients:
2581
1423
if c.fingerprint == fpr:
2582
1424
client = c
2583
1425
break
2584
1426
else:
2585
logger.info("Client not found for fingerprint: %s, ad"
2586
"dress: %s", fpr, address)
1427
logger.warning(u"Client not found for fingerprint: %s, ad"
1428
u"dress: %s", fpr, address)
2587
1429
if self.use_dbus:
2588
1430
# Emit D-Bus signal
2589
mandos_dbus_service.ClientNotFound(fpr,
2590
address[0])
1431
mandos_dbus_service.ClientNotFound(fpr, address)
2591
1432
parent_pipe.send(False)
2592
1433
return False
2593
2594
GLib.io_add_watch(
2595
parent_pipe.fileno(),
2596
GLib.IO_IN | GLib.IO_HUP,
2597
functools.partial(self.handle_ipc,
2598
parent_pipe=parent_pipe,
2599
proc=proc,
2600
client_object=client))
1434
1435
gobject.io_add_watch(parent_pipe.fileno(),
1436
gobject.IO_IN | gobject.IO_HUP,
1437
functools.partial(self.handle_ipc,
1438
parent_pipe = parent_pipe,
1439
client_object = client))
2601
1440
parent_pipe.send(True)
2602
# remove the old hook in favor of the new above hook on
2603
# same fileno
1441
# remove the old hook in favor of the new above hook on same fileno
2604
1442
return False
2605
1443
if command == 'funcall':
2606
1444
funcname = request[1]
2607
1445
args = request[2]
2608
1446
kwargs = request[3]
2609
2610
parent_pipe.send(('data', getattr(client_object,
2611
funcname)(*args,
2612
**kwargs)))
1447
1448
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
2613
1449
2614
1450
if command == 'getattr':
2615
1451
attrname = request[1]
2616
if isinstance(client_object.__getattribute__(attrname),
2617
collections.Callable):
2618
parent_pipe.send(('function', ))
1452
if callable(client_object.__getattribute__(attrname)):
1453
parent_pipe.send(('function',))
2619
1454
else:
2620
parent_pipe.send((
2621
'data', client_object.__getattribute__(attrname)))
1455
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2622
1456
2623
1457
if command == 'setattr':
2624
1458
attrname = request[1]
2625
1459
value = request[2]
2626
1460
setattr(client_object, attrname, value)
2627
1461
2628
1462
return True
2629
1463
2630
1464
2631
def rfc3339_duration_to_delta(duration):
2632
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2633
2634
>>> rfc3339_duration_to_delta("P7D")
2635
datetime.timedelta(7)
2636
>>> rfc3339_duration_to_delta("PT60S")
2637
datetime.timedelta(0, 60)
2638
>>> rfc3339_duration_to_delta("PT60M")
2639
datetime.timedelta(0, 3600)
2640
>>> rfc3339_duration_to_delta("PT24H")
2641
datetime.timedelta(1)
2642
>>> rfc3339_duration_to_delta("P1W")
2643
datetime.timedelta(7)
2644
>>> rfc3339_duration_to_delta("PT5M30S")
2645
datetime.timedelta(0, 330)
2646
>>> rfc3339_duration_to_delta("P1DT3M20S")
2647
datetime.timedelta(1, 200)
2648
"""
2649
2650
# Parsing an RFC 3339 duration with regular expressions is not
2651
# possible - there would have to be multiple places for the same
2652
# values, like seconds. The current code, while more esoteric, is
2653
# cleaner without depending on a parsing library. If Python had a
2654
# built-in library for parsing we would use it, but we'd like to
2655
# avoid excessive use of external libraries.
2656
2657
# New type for defining tokens, syntax, and semantics all-in-one
2658
Token = collections.namedtuple("Token", (
2659
"regexp", # To match token; if "value" is not None, must have
2660
# a "group" containing digits
2661
"value", # datetime.timedelta or None
2662
"followers")) # Tokens valid after this token
2663
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2664
# the "duration" ABNF definition in RFC 3339, Appendix A.
2665
token_end = Token(re.compile(r"$"), None, frozenset())
2666
token_second = Token(re.compile(r"(\d+)S"),
2667
datetime.timedelta(seconds=1),
2668
frozenset((token_end, )))
2669
token_minute = Token(re.compile(r"(\d+)M"),
2670
datetime.timedelta(minutes=1),
2671
frozenset((token_second, token_end)))
2672
token_hour = Token(re.compile(r"(\d+)H"),
2673
datetime.timedelta(hours=1),
2674
frozenset((token_minute, token_end)))
2675
token_time = Token(re.compile(r"T"),
2676
None,
2677
frozenset((token_hour, token_minute,
2678
token_second)))
2679
token_day = Token(re.compile(r"(\d+)D"),
2680
datetime.timedelta(days=1),
2681
frozenset((token_time, token_end)))
2682
token_month = Token(re.compile(r"(\d+)M"),
2683
datetime.timedelta(weeks=4),
2684
frozenset((token_day, token_end)))
2685
token_year = Token(re.compile(r"(\d+)Y"),
2686
datetime.timedelta(weeks=52),
2687
frozenset((token_month, token_end)))
2688
token_week = Token(re.compile(r"(\d+)W"),
2689
datetime.timedelta(weeks=1),
2690
frozenset((token_end, )))
2691
token_duration = Token(re.compile(r"P"), None,
2692
frozenset((token_year, token_month,
2693
token_day, token_time,
2694
token_week)))
2695
# Define starting values:
2696
# Value so far
2697
value = datetime.timedelta()
2698
found_token = None
2699
# Following valid tokens
2700
followers = frozenset((token_duration, ))
2701
# String left to parse
2702
s = duration
2703
# Loop until end token is found
2704
while found_token is not token_end:
2705
# Search for any currently valid tokens
2706
for token in followers:
2707
match = token.regexp.match(s)
2708
if match is not None:
2709
# Token found
2710
if token.value is not None:
2711
# Value found, parse digits
2712
factor = int(match.group(1), 10)
2713
# Add to value so far
2714
value += factor * token.value
2715
# Strip token from string
2716
s = token.regexp.sub("", s, 1)
2717
# Go to found token
2718
found_token = token
2719
# Set valid next tokens
2720
followers = found_token.followers
2721
break
2722
else:
2723
# No currently valid tokens were found
2724
raise ValueError("Invalid RFC 3339 duration: {!r}"
2725
.format(duration))
2726
# End token found
2727
return value
2728
2729
2730
1465
def string_to_delta(interval):
2731
1466
"""Parse a string and return a datetime.timedelta
2732
2733
>>> string_to_delta('7d')
1467
1468
>>> string_to_delta(u'7d')
2734
1469
datetime.timedelta(7)
2735
>>> string_to_delta('60s')
1470
>>> string_to_delta(u'60s')
2736
1471
datetime.timedelta(0, 60)
2737
>>> string_to_delta('60m')
1472
>>> string_to_delta(u'60m')
2738
1473
datetime.timedelta(0, 3600)
2739
>>> string_to_delta('24h')
1474
>>> string_to_delta(u'24h')
2740
1475
datetime.timedelta(1)
2741
>>> string_to_delta('1w')
1476
>>> string_to_delta(u'1w')
2742
1477
datetime.timedelta(7)
2743
>>> string_to_delta('5m 30s')
1478
>>> string_to_delta(u'5m 30s')
2744
1479
datetime.timedelta(0, 330)
2745
1480
"""
2746
2747
try:
2748
return rfc3339_duration_to_delta(interval)
2749
except ValueError:
2750
pass
2751
2752
1481
timevalue = datetime.timedelta(0)
2753
1482
for s in interval.split():
2754
1483
try:
2755
suffix = s[-1]
1484
suffix = unicode(s[-1])
2756
1485
value = int(s[:-1])
2757
if suffix == "d":
1486
if suffix == u"d":
2758
1487
delta = datetime.timedelta(value)
2759
elif suffix == "s":
1488
elif suffix == u"s":
2760
1489
delta = datetime.timedelta(0, value)
2761
elif suffix == "m":
1490
elif suffix == u"m":
2762
1491
delta = datetime.timedelta(0, 0, 0, 0, value)
2763
elif suffix == "h":
1492
elif suffix == u"h":
2764
1493
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
2765
elif suffix == "w":
1494
elif suffix == u"w":
2766
1495
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2767
1496
else:
2768
raise ValueError("Unknown suffix {!r}".format(suffix))
2769
except IndexError as e:
2770
raise ValueError(*(e.args))
1497
raise ValueError(u"Unknown suffix %r" % suffix)
1498
except (ValueError, IndexError), e:
1499
raise ValueError(e.message)
2771
1500
timevalue += delta
2772
1501
return timevalue
2773
1502
2774
1503
2775
def daemon(nochdir=False, noclose=False):
1504
def if_nametoindex(interface):
1505
"""Call the C function if_nametoindex(), or equivalent
1506
1507
Note: This function cannot accept a unicode string."""
1508
global if_nametoindex
1509
try:
1510
if_nametoindex = (ctypes.cdll.LoadLibrary
1511
(ctypes.util.find_library(u"c"))
1512
.if_nametoindex)
1513
except (OSError, AttributeError):
1514
logger.warning(u"Doing if_nametoindex the hard way")
1515
def if_nametoindex(interface):
1516
"Get an interface index the hard way, i.e. using fcntl()"
1517
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1518
with contextlib.closing(socket.socket()) as s:
1519
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1520
struct.pack(str(u"16s16x"),
1521
interface))
1522
interface_index = struct.unpack(str(u"I"),
1523
ifreq[16:20])[0]
1524
return interface_index
1525
return if_nametoindex(interface)
1526
1527
1528
def daemon(nochdir = False, noclose = False):
2776
1529
"""See daemon(3). Standard BSD Unix function.
2777
1530
2778
1531
This should really exist as os.daemon, but it doesn't (yet)."""
2779
1532
if os.fork():
2780
1533
sys.exit()
2781
1534
os.setsid()
2782
1535
if not nochdir:
2783
os.chdir("/")
1536
os.chdir(u"/")
2784
1537
if os.fork():
2785
1538
sys.exit()
2786
1539
if not noclose:
2787
1540
# Close all standard open file descriptors
2788
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1541
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2789
1542
if not stat.S_ISCHR(os.fstat(null).st_mode):
2790
1543
raise OSError(errno.ENODEV,
2791
"{} not a character device"
2792
.format(os.devnull))
1544
u"%s not a character device"
1545
% os.path.devnull)
2793
1546
os.dup2(null, sys.stdin.fileno())
2794
1547
os.dup2(null, sys.stdout.fileno())
2795
1548
os.dup2(null, sys.stderr.fileno())
2798
1551
2799
1552
2800
1553
def main():
2801
1554
2802
1555
##################################################################
2803
1556
# Parsing of options, both command line and config file
2804
2805
parser = argparse.ArgumentParser()
2806
parser.add_argument("-v", "--version", action="version",
2807
version="%(prog)s {}".format(version),
2808
help="show version number and exit")
2809
parser.add_argument("-i", "--interface", metavar="IF",
2810
help="Bind to interface IF")
2811
parser.add_argument("-a", "--address",
2812
help="Address to listen for requests on")
2813
parser.add_argument("-p", "--port", type=int,
2814
help="Port number to receive requests on")
2815
parser.add_argument("--check", action="store_true",
2816
help="Run self-test")
2817
parser.add_argument("--debug", action="store_true",
2818
help="Debug mode; run in foreground and log"
2819
" to terminal", default=None)
2820
parser.add_argument("--debuglevel", metavar="LEVEL",
2821
help="Debug level for stdout output")
2822
parser.add_argument("--priority", help="GnuTLS"
2823
" priority string (see GnuTLS documentation)")
2824
parser.add_argument("--servicename",
2825
metavar="NAME", help="Zeroconf service name")
2826
parser.add_argument("--configdir",
2827
default="/etc/mandos", metavar="DIR",
2828
help="Directory to search for configuration"
2829
" files")
2830
parser.add_argument("--no-dbus", action="store_false",
2831
dest="use_dbus", help="Do not provide D-Bus"
2832
" system bus interface", default=None)
2833
parser.add_argument("--no-ipv6", action="store_false",
2834
dest="use_ipv6", help="Do not use IPv6",
2835
default=None)
2836
parser.add_argument("--no-restore", action="store_false",
2837
dest="restore", help="Do not restore stored"
2838
" state", default=None)
2839
parser.add_argument("--socket", type=int,
2840
help="Specify a file descriptor to a network"
2841
" socket to use instead of creating one")
2842
parser.add_argument("--statedir", metavar="DIR",
2843
help="Directory to save/restore state in")
2844
parser.add_argument("--foreground", action="store_true",
2845
help="Run in foreground", default=None)
2846
parser.add_argument("--no-zeroconf", action="store_false",
2847
dest="zeroconf", help="Do not use Zeroconf",
2848
default=None)
2849
2850
options = parser.parse_args()
2851
1557
1558
parser = optparse.OptionParser(version = "%%prog %s" % version)
1559
parser.add_option("-i", u"--interface", type=u"string",
1560
metavar="IF", help=u"Bind to interface IF")
1561
parser.add_option("-a", u"--address", type=u"string",
1562
help=u"Address to listen for requests on")
1563
parser.add_option("-p", u"--port", type=u"int",
1564
help=u"Port number to receive requests on")
1565
parser.add_option("--check", action=u"store_true",
1566
help=u"Run self-test")
1567
parser.add_option("--debug", action=u"store_true",
1568
help=u"Debug mode; run in foreground and log to"
1569
u" terminal")
1570
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1571
u" priority string (see GnuTLS documentation)")
1572
parser.add_option("--servicename", type=u"string",
1573
metavar=u"NAME", help=u"Zeroconf service name")
1574
parser.add_option("--configdir", type=u"string",
1575
default=u"/etc/mandos", metavar=u"DIR",
1576
help=u"Directory to search for configuration"
1577
u" files")
1578
parser.add_option("--no-dbus", action=u"store_false",
1579
dest=u"use_dbus", help=u"Do not provide D-Bus"
1580
u" system bus interface")
1581
parser.add_option("--no-ipv6", action=u"store_false",
1582
dest=u"use_ipv6", help=u"Do not use IPv6")
1583
options = parser.parse_args()[0]
1584
2852
1585
if options.check:
2853
1586
import doctest
2854
fail_count, test_count = doctest.testmod()
2855
sys.exit(os.EX_OK if fail_count == 0 else 1)
2856
1587
doctest.testmod()
1588
sys.exit()
1589
2857
1590
# Default values for config file for server-global settings
2858
server_defaults = {"interface": "",
2859
"address": "",
2860
"port": "",
2861
"debug": "False",
2862
"priority":
2863
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2864
":+SIGN-DSA-SHA256",
2865
"servicename": "Mandos",
2866
"use_dbus": "True",
2867
"use_ipv6": "True",
2868
"debuglevel": "",
2869
"restore": "True",
2870
"socket": "",
2871
"statedir": "/var/lib/mandos",
2872
"foreground": "False",
2873
"zeroconf": "True",
2874
}
2875
1591
server_defaults = { u"interface": u"",
1592
u"address": u"",
1593
u"port": u"",
1594
u"debug": u"False",
1595
u"priority":
1596
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1597
u"servicename": u"Mandos",
1598
u"use_dbus": u"True",
1599
u"use_ipv6": u"True",
1600
}
1601
2876
1602
# Parse config file for server-global settings
2877
1603
server_config = configparser.SafeConfigParser(server_defaults)
2878
1604
del server_defaults
2879
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1605
server_config.read(os.path.join(options.configdir,
1606
u"mandos.conf"))
2880
1607
# Convert the SafeConfigParser object to a dict
2881
1608
server_settings = server_config.defaults()
2882
1609
# Use the appropriate methods on the non-string config options
2883
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2884
server_settings[option] = server_config.getboolean("DEFAULT",
1610
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1611
server_settings[option] = server_config.getboolean(u"DEFAULT",
2885
1612
option)
2886
1613
if server_settings["port"]:
2887
server_settings["port"] = server_config.getint("DEFAULT",
2888
"port")
2889
if server_settings["socket"]:
2890
server_settings["socket"] = server_config.getint("DEFAULT",
2891
"socket")
2892
# Later, stdin will, and stdout and stderr might, be dup'ed
2893
# over with an opened os.devnull. But we don't want this to
2894
# happen with a supplied network socket.
2895
if 0 <= server_settings["socket"] <= 2:
2896
server_settings["socket"] = os.dup(server_settings
2897
["socket"])
1614
server_settings["port"] = server_config.getint(u"DEFAULT",
1615
u"port")
2898
1616
del server_config
2899
1617
2900
1618
# Override the settings from the config file with command line
2901
1619
# options, if set.
2902
for option in ("interface", "address", "port", "debug",
2903
"priority", "servicename", "configdir", "use_dbus",
2904
"use_ipv6", "debuglevel", "restore", "statedir",
2905
"socket", "foreground", "zeroconf"):
1620
for option in (u"interface", u"address", u"port", u"debug",
1621
u"priority", u"servicename", u"configdir",
1622
u"use_dbus", u"use_ipv6"):
2906
1623
value = getattr(options, option)
2907
1624
if value is not None:
2908
1625
server_settings[option] = value
2909
1626
del options
2910
1627
# Force all strings to be unicode
2911
1628
for option in server_settings.keys():
2912
if isinstance(server_settings[option], bytes):
2913
server_settings[option] = (server_settings[option]
2914
.decode("utf-8"))
2915
# Force all boolean options to be boolean
2916
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2917
"foreground", "zeroconf"):
2918
server_settings[option] = bool(server_settings[option])
2919
# Debug implies foreground
2920
if server_settings["debug"]:
2921
server_settings["foreground"] = True
1629
if type(server_settings[option]) is str:
1630
server_settings[option] = unicode(server_settings[option])
2922
1631
# Now we have our good server settings in "server_settings"
2923
1632
2924
1633
##################################################################
2925
2926
if (not server_settings["zeroconf"]
2927
and not (server_settings["port"]
2928
or server_settings["socket"] != "")):
2929
parser.error("Needs port or socket to work without Zeroconf")
2930
1634
2931
1635
# For convenience
2932
debug = server_settings["debug"]
2933
debuglevel = server_settings["debuglevel"]
2934
use_dbus = server_settings["use_dbus"]
2935
use_ipv6 = server_settings["use_ipv6"]
2936
stored_state_path = os.path.join(server_settings["statedir"],
2937
stored_state_file)
2938
foreground = server_settings["foreground"]
2939
zeroconf = server_settings["zeroconf"]
2940
2941
if debug:
2942
initlogger(debug, logging.DEBUG)
2943
else:
2944
if not debuglevel:
2945
initlogger(debug)
2946
else:
2947
level = getattr(logging, debuglevel.upper())
2948
initlogger(debug, level)
2949
2950
if server_settings["servicename"] != "Mandos":
2951
syslogger.setFormatter(
2952
logging.Formatter('Mandos ({}) [%(process)d]:'
2953
' %(levelname)s: %(message)s'.format(
2954
server_settings["servicename"])))
2955
1636
debug = server_settings[u"debug"]
1637
use_dbus = server_settings[u"use_dbus"]
1638
use_ipv6 = server_settings[u"use_ipv6"]
1639
1640
if not debug:
1641
syslogger.setLevel(logging.WARNING)
1642
console.setLevel(logging.WARNING)
1643
1644
if server_settings[u"servicename"] != u"Mandos":
1645
syslogger.setFormatter(logging.Formatter
1646
(u'Mandos (%s) [%%(process)d]:'
1647
u' %%(levelname)s: %%(message)s'
1648
% server_settings[u"servicename"]))
1649
2956
1650
# Parse config file with clients
2957
client_config = configparser.SafeConfigParser(Client
2958
.client_defaults)
2959
client_config.read(os.path.join(server_settings["configdir"],
2960
"clients.conf"))
2961
1651
client_defaults = { u"timeout": u"1h",
1652
u"interval": u"5m",
1653
u"checker": u"fping -q -- %%(host)s",
1654
u"host": u"",
1655
u"approved_delay": u"5m",
1656
u"approved_duration": u"1s",
1657
}
1658
client_config = configparser.SafeConfigParser(client_defaults)
1659
client_config.read(os.path.join(server_settings[u"configdir"],
1660
u"clients.conf"))
1661
2962
1662
global mandos_dbus_service
2963
1663
mandos_dbus_service = None
2964
2965
socketfd = None
2966
if server_settings["socket"] != "":
2967
socketfd = server_settings["socket"]
2968
tcp_server = MandosServer(
2969
(server_settings["address"], server_settings["port"]),
2970
ClientHandler,
2971
interface=(server_settings["interface"] or None),
2972
use_ipv6=use_ipv6,
2973
gnutls_priority=server_settings["priority"],
2974
use_dbus=use_dbus,
2975
socketfd=socketfd)
2976
if not foreground:
2977
pidfilename = "/run/mandos.pid"
2978
if not os.path.isdir("/run/."):
2979
pidfilename = "/var/run/mandos.pid"
2980
pidfile = None
2981
try:
2982
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2983
except IOError as e:
2984
logger.error("Could not open file %r", pidfilename,
2985
exc_info=e)
2986
2987
for name, group in (("_mandos", "_mandos"),
2988
("mandos", "mandos"),
2989
("nobody", "nogroup")):
2990
try:
2991
uid = pwd.getpwnam(name).pw_uid
2992
gid = pwd.getpwnam(group).pw_gid
2993
break
1664
1665
tcp_server = MandosServer((server_settings[u"address"],
1666
server_settings[u"port"]),
1667
ClientHandler,
1668
interface=server_settings[u"interface"],
1669
use_ipv6=use_ipv6,
1670
gnutls_priority=
1671
server_settings[u"priority"],
1672
use_dbus=use_dbus)
1673
pidfilename = u"/var/run/mandos.pid"
1674
try:
1675
pidfile = open(pidfilename, u"w")
1676
except IOError:
1677
logger.error(u"Could not open file %r", pidfilename)
1678
1679
try:
1680
uid = pwd.getpwnam(u"_mandos").pw_uid
1681
gid = pwd.getpwnam(u"_mandos").pw_gid
1682
except KeyError:
1683
try:
1684
uid = pwd.getpwnam(u"mandos").pw_uid
1685
gid = pwd.getpwnam(u"mandos").pw_gid
2994
1686
except KeyError:
2995
continue
2996
else:
2997
uid = 65534
2998
gid = 65534
1687
try:
1688
uid = pwd.getpwnam(u"nobody").pw_uid
1689
gid = pwd.getpwnam(u"nobody").pw_gid
1690
except KeyError:
1691
uid = 65534
1692
gid = 65534
2999
1693
try:
3000
1694
os.setgid(gid)
3001
1695
os.setuid(uid)
3002
if debug:
3003
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3004
gid))
3005
except OSError as error:
3006
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3007
.format(uid, gid, os.strerror(error.errno)))
3008
if error.errno != errno.EPERM:
3009
raise
3010
1696
except OSError, error:
1697
if error[0] != errno.EPERM:
1698
raise error
1699
1700
# Enable all possible GnuTLS debugging
3011
1701
if debug:
3012
# Enable all possible GnuTLS debugging
3013
3014
1702
# "Use a log level over 10 to enable all debugging options."
3015
1703
# - GnuTLS manual
3016
gnutls.global_set_log_level(11)
3017
3018
@gnutls.log_func
1704
gnutls.library.functions.gnutls_global_set_log_level(11)
1705
1706
@gnutls.library.types.gnutls_log_func
3019
1707
def debug_gnutls(level, string):
3020
logger.debug("GnuTLS: %s", string[:-1])
3021
3022
gnutls.global_set_log_function(debug_gnutls)
3023
3024
# Redirect stdin so all checkers get /dev/null
3025
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
3026
os.dup2(null, sys.stdin.fileno())
3027
if null > 2:
3028
os.close(null)
3029
3030
# Need to fork before connecting to D-Bus
3031
if not foreground:
3032
# Close all input and output, do double fork, etc.
3033
daemon()
3034
3035
# multiprocessing will use threads, so before we use GLib we need
3036
# to inform GLib that threads will be used.
3037
GLib.threads_init()
3038
1708
logger.debug(u"GnuTLS: %s", string[:-1])
1709
1710
(gnutls.library.functions
1711
.gnutls_global_set_log_function(debug_gnutls))
1712
3039
1713
global main_loop
3040
1714
# From the Avahi example code
3041
DBusGMainLoop(set_as_default=True)
3042
main_loop = GLib.MainLoop()
1715
DBusGMainLoop(set_as_default=True )
1716
main_loop = gobject.MainLoop()
3043
1717
bus = dbus.SystemBus()
3044
1718
# End of Avahi example code
3045
1719
if use_dbus:
3046
1720
try:
3047
bus_name = dbus.service.BusName("se.recompile.Mandos",
3048
bus,
3049
do_not_queue=True)
3050
old_bus_name = dbus.service.BusName(
3051
"se.bsnet.fukt.Mandos", bus,
3052
do_not_queue=True)
3053
except dbus.exceptions.DBusException as e:
3054
logger.error("Disabling D-Bus:", exc_info=e)
1721
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
1722
bus, do_not_queue=True)
1723
except dbus.exceptions.NameExistsException, e:
1724
logger.error(unicode(e) + u", disabling D-Bus")
3055
1725
use_dbus = False
3056
server_settings["use_dbus"] = False
1726
server_settings[u"use_dbus"] = False
3057
1727
tcp_server.use_dbus = False
3058
if zeroconf:
3059
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3060
service = AvahiServiceToSyslog(
3061
name=server_settings["servicename"],
3062
servicetype="_mandos._tcp",
3063
protocol=protocol,
3064
bus=bus)
3065
if server_settings["interface"]:
3066
service.interface = if_nametoindex(
3067
server_settings["interface"].encode("utf-8"))
3068
3069
global multiprocessing_manager
3070
multiprocessing_manager = multiprocessing.Manager()
3071
1728
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1729
service = AvahiService(name = server_settings[u"servicename"],
1730
servicetype = u"_mandos._tcp",
1731
protocol = protocol, bus = bus)
1732
if server_settings["interface"]:
1733
service.interface = (if_nametoindex
1734
(str(server_settings[u"interface"])))
1735
3072
1736
client_class = Client
3073
1737
if use_dbus:
3074
client_class = functools.partial(ClientDBus, bus=bus)
3075
3076
client_settings = Client.config_parser(client_config)
3077
old_client_settings = {}
3078
clients_data = {}
3079
3080
# This is used to redirect stdout and stderr for checker processes
3081
global wnull
3082
wnull = open(os.devnull, "w") # A writable /dev/null
3083
# Only used if server is running in foreground but not in debug
3084
# mode
3085
if debug or not foreground:
3086
wnull.close()
3087
3088
# Get client data and settings from last running state.
3089
if server_settings["restore"]:
3090
try:
3091
with open(stored_state_path, "rb") as stored_state:
3092
if sys.version_info.major == 2:
3093
clients_data, old_client_settings = pickle.load(
3094
stored_state)
3095
else:
3096
bytes_clients_data, bytes_old_client_settings = (
3097
pickle.load(stored_state, encoding="bytes"))
3098
# Fix bytes to strings
3099
# clients_data
3100
# .keys()
3101
clients_data = {(key.decode("utf-8")
3102
if isinstance(key, bytes)
3103
else key): value
3104
for key, value in
3105
bytes_clients_data.items()}
3106
del bytes_clients_data
3107
for key in clients_data:
3108
value = {(k.decode("utf-8")
3109
if isinstance(k, bytes) else k): v
3110
for k, v in
3111
clients_data[key].items()}
3112
clients_data[key] = value
3113
# .client_structure
3114
value["client_structure"] = [
3115
(s.decode("utf-8")
3116
if isinstance(s, bytes)
3117
else s) for s in
3118
value["client_structure"]]
3119
# .name & .host
3120
for k in ("name", "host"):
3121
if isinstance(value[k], bytes):
3122
value[k] = value[k].decode("utf-8")
3123
# old_client_settings
3124
# .keys()
3125
old_client_settings = {
3126
(key.decode("utf-8")
3127
if isinstance(key, bytes)
3128
else key): value
3129
for key, value in
3130
bytes_old_client_settings.items()}
3131
del bytes_old_client_settings
3132
# .host
3133
for value in old_client_settings.values():
3134
if isinstance(value["host"], bytes):
3135
value["host"] = (value["host"]
3136
.decode("utf-8"))
3137
os.remove(stored_state_path)
3138
except IOError as e:
3139
if e.errno == errno.ENOENT:
3140
logger.warning("Could not load persistent state:"
3141
" {}".format(os.strerror(e.errno)))
3142
else:
3143
logger.critical("Could not load persistent state:",
3144
exc_info=e)
3145
raise
3146
except EOFError as e:
3147
logger.warning("Could not load persistent state: "
3148
"EOFError:",
3149
exc_info=e)
3150
3151
with PGPEngine() as pgp:
3152
for client_name, client in clients_data.items():
3153
# Skip removed clients
3154
if client_name not in client_settings:
3155
continue
3156
3157
# Decide which value to use after restoring saved state.
3158
# We have three different values: Old config file,
3159
# new config file, and saved state.
3160
# New config value takes precedence if it differs from old
3161
# config value, otherwise use saved state.
3162
for name, value in client_settings[client_name].items():
3163
try:
3164
# For each value in new config, check if it
3165
# differs from the old config value (Except for
3166
# the "secret" attribute)
3167
if (name != "secret"
3168
and (value !=
3169
old_client_settings[client_name][name])):
3170
client[name] = value
3171
except KeyError:
3172
pass
3173
3174
# Clients who has passed its expire date can still be
3175
# enabled if its last checker was successful. A Client
3176
# whose checker succeeded before we stored its state is
3177
# assumed to have successfully run all checkers during
3178
# downtime.
3179
if client["enabled"]:
3180
if datetime.datetime.utcnow() >= client["expires"]:
3181
if not client["last_checked_ok"]:
3182
logger.warning(
3183
"disabling client {} - Client never "
3184
"performed a successful checker".format(
3185
client_name))
3186
client["enabled"] = False
3187
elif client["last_checker_status"] != 0:
3188
logger.warning(
3189
"disabling client {} - Client last"
3190
" checker failed with error code"
3191
" {}".format(
3192
client_name,
3193
client["last_checker_status"]))
3194
client["enabled"] = False
3195
else:
3196
client["expires"] = (
3197
datetime.datetime.utcnow()
3198
+ client["timeout"])
3199
logger.debug("Last checker succeeded,"
3200
" keeping {} enabled".format(
3201
client_name))
1738
client_class = functools.partial(ClientDBus, bus = bus)
1739
def client_config_items(config, section):
1740
special_settings = {
1741
"approve_by_default":
1742
lambda: config.getboolean(section,
1743
"approve_by_default"),
1744
}
1745
for name, value in config.items(section):
3202
1746
try:
3203
client["secret"] = pgp.decrypt(
3204
client["encrypted_secret"],
3205
client_settings[client_name]["secret"])
3206
except PGPError:
3207
# If decryption fails, we use secret from new settings
3208
logger.debug("Failed to decrypt {} old secret".format(
3209
client_name))
3210
client["secret"] = (client_settings[client_name]
3211
["secret"])
3212
3213
# Add/remove clients based on new changes made to config
3214
for client_name in (set(old_client_settings)
3215
- set(client_settings)):
3216
del clients_data[client_name]
3217
for client_name in (set(client_settings)
3218
- set(old_client_settings)):
3219
clients_data[client_name] = client_settings[client_name]
3220
3221
# Create all client objects
3222
for client_name, client in clients_data.items():
3223
tcp_server.clients[client_name] = client_class(
3224
name=client_name,
3225
settings=client,
3226
server_settings=server_settings)
3227
1747
yield special_settings[name]()
1748
except KeyError:
1749
yield (name, value)
1750
1751
tcp_server.clients.update(set(
1752
client_class(name = section,
1753
config= dict(client_config_items(
1754
client_config, section)))
1755
for section in client_config.sections()))
3228
1756
if not tcp_server.clients:
3229
logger.warning("No clients defined")
3230
3231
if not foreground:
3232
if pidfile is not None:
1757
logger.warning(u"No clients defined")
1758
1759
if debug:
1760
# Redirect stdin so all checkers get /dev/null
1761
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1762
os.dup2(null, sys.stdin.fileno())
1763
if null > 2:
1764
os.close(null)
1765
else:
1766
# No console logging
1767
logger.removeHandler(console)
1768
# Close all input and output, do double fork, etc.
1769
daemon()
1770
1771
try:
1772
with pidfile:
3233
1773
pid = os.getpid()
3234
try:
3235
with pidfile:
3236
print(pid, file=pidfile)
3237
except IOError:
3238
logger.error("Could not write to file %r with PID %d",
3239
pidfilename, pid)
1774
pidfile.write(str(pid) + "\n")
3240
1775
del pidfile
3241
del pidfilename
3242
3243
for termsig in (signal.SIGHUP, signal.SIGTERM):
3244
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3245
lambda: main_loop.quit() and False)
3246
1776
except IOError:
1777
logger.error(u"Could not write to file %r with PID %d",
1778
pidfilename, pid)
1779
except NameError:
1780
# "pidfile" was never created
1781
pass
1782
del pidfilename
1783
1784
if not debug:
1785
signal.signal(signal.SIGINT, signal.SIG_IGN)
1786
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1787
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1788
3247
1789
if use_dbus:
3248
3249
@alternate_dbus_interfaces(
3250
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3251
class MandosDBusService(DBusObjectWithObjectManager):
1790
class MandosDBusService(dbus.service.Object):
3252
1791
"""A D-Bus proxy object"""
3253
3254
1792
def __init__(self):
3255
dbus.service.Object.__init__(self, bus, "/")
3256
3257
_interface = "se.recompile.Mandos"
3258
3259
@dbus.service.signal(_interface, signature="o")
1793
dbus.service.Object.__init__(self, bus, u"/")
1794
_interface = u"se.bsnet.fukt.Mandos"
1795
1796
@dbus.service.signal(_interface, signature=u"o")
3260
1797
def ClientAdded(self, objpath):
3261
1798
"D-Bus signal"
3262
1799
pass
3263
3264
@dbus.service.signal(_interface, signature="ss")
1800
1801
@dbus.service.signal(_interface, signature=u"ss")
3265
1802
def ClientNotFound(self, fingerprint, address):
3266
1803
"D-Bus signal"
3267
1804
pass
3268
3269
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3270
"true"})
3271
@dbus.service.signal(_interface, signature="os")
1805
1806
@dbus.service.signal(_interface, signature=u"os")
3272
1807
def ClientRemoved(self, objpath, name):
3273
1808
"D-Bus signal"
3274
1809
pass
3275
3276
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3277
"true"})
3278
@dbus.service.method(_interface, out_signature="ao")
1810
1811
@dbus.service.method(_interface, out_signature=u"ao")
3279
1812
def GetAllClients(self):
3280
1813
"D-Bus method"
3281
return dbus.Array(c.dbus_object_path for c in
3282
tcp_server.clients.values())
3283
3284
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3285
"true"})
1814
return dbus.Array(c.dbus_object_path
1815
for c in tcp_server.clients)
1816
3286
1817
@dbus.service.method(_interface,
3287
out_signature="a{oa{sv}}")
1818
out_signature=u"a{oa{sv}}")
3288
1819
def GetAllClientsWithProperties(self):
3289
1820
"D-Bus method"
3290
1821
return dbus.Dictionary(
3291
{c.dbus_object_path: c.GetAll(
3292
"se.recompile.Mandos.Client")
3293
for c in tcp_server.clients.values()},
3294
signature="oa{sv}")
3295
3296
@dbus.service.method(_interface, in_signature="o")
1822
((c.dbus_object_path, c.GetAll(u""))
1823
for c in tcp_server.clients),
1824
signature=u"oa{sv}")
1825
1826
@dbus.service.method(_interface, in_signature=u"o")
3297
1827
def RemoveClient(self, object_path):
3298
1828
"D-Bus method"
3299
for c in tcp_server.clients.values():
1829
for c in tcp_server.clients:
3300
1830
if c.dbus_object_path == object_path:
3301
del tcp_server.clients[c.name]
1831
tcp_server.clients.remove(c)
3302
1832
c.remove_from_connection()
3303
# Don't signal the disabling
1833
# Don't signal anything except ClientRemoved
3304
1834
c.disable(quiet=True)
3305
# Emit D-Bus signal for removal
3306
self.client_removed_signal(c)
1835
# Emit D-Bus signal
1836
self.ClientRemoved(object_path, c.name)
3307
1837
return
3308
1838
raise KeyError(object_path)
3309
1839
3310
1840
del _interface
3311
3312
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3313
out_signature="a{oa{sa{sv}}}")
3314
def GetManagedObjects(self):
3315
"""D-Bus method"""
3316
return dbus.Dictionary(
3317
{client.dbus_object_path:
3318
dbus.Dictionary(
3319
{interface: client.GetAll(interface)
3320
for interface in
3321
client._get_all_interface_names()})
3322
for client in tcp_server.clients.values()})
3323
3324
def client_added_signal(self, client):
3325
"""Send the new standard signal and the old signal"""
3326
if use_dbus:
3327
# New standard signal
3328
self.InterfacesAdded(
3329
client.dbus_object_path,
3330
dbus.Dictionary(
3331
{interface: client.GetAll(interface)
3332
for interface in
3333
client._get_all_interface_names()}))
3334
# Old signal
3335
self.ClientAdded(client.dbus_object_path)
3336
3337
def client_removed_signal(self, client):
3338
"""Send the new standard signal and the old signal"""
3339
if use_dbus:
3340
# New standard signal
3341
self.InterfacesRemoved(
3342
client.dbus_object_path,
3343
client._get_all_interface_names())
3344
# Old signal
3345
self.ClientRemoved(client.dbus_object_path,
3346
client.name)
3347
1841
3348
1842
mandos_dbus_service = MandosDBusService()
3349
3350
# Save modules to variables to exempt the modules from being
3351
# unloaded before the function registered with atexit() is run.
3352
mp = multiprocessing
3353
wn = wnull
3354
1843
3355
1844
def cleanup():
3356
1845
"Cleanup function; run on exit"
3357
if zeroconf:
3358
service.cleanup()
3359
3360
mp.active_children()
3361
wn.close()
3362
if not (tcp_server.clients or client_settings):
3363
return
3364
3365
# Store client before exiting. Secrets are encrypted with key
3366
# based on what config file has. If config file is
3367
# removed/edited, old secret will thus be unrecovable.
3368
clients = {}
3369
with PGPEngine() as pgp:
3370
for client in tcp_server.clients.values():
3371
key = client_settings[client.name]["secret"]
3372
client.encrypted_secret = pgp.encrypt(client.secret,
3373
key)
3374
client_dict = {}
3375
3376
# A list of attributes that can not be pickled
3377
# + secret.
3378
exclude = {"bus", "changedstate", "secret",
3379
"checker", "server_settings"}
3380
for name, typ in inspect.getmembers(dbus.service
3381
.Object):
3382
exclude.add(name)
3383
3384
client_dict["encrypted_secret"] = (client
3385
.encrypted_secret)
3386
for attr in client.client_structure:
3387
if attr not in exclude:
3388
client_dict[attr] = getattr(client, attr)
3389
3390
clients[client.name] = client_dict
3391
del client_settings[client.name]["secret"]
3392
3393
try:
3394
with tempfile.NamedTemporaryFile(
3395
mode='wb',
3396
suffix=".pickle",
3397
prefix='clients-',
3398
dir=os.path.dirname(stored_state_path),
3399
delete=False) as stored_state:
3400
pickle.dump((clients, client_settings), stored_state,
3401
protocol=2)
3402
tempname = stored_state.name
3403
os.rename(tempname, stored_state_path)
3404
except (IOError, OSError) as e:
3405
if not debug:
3406
try:
3407
os.remove(tempname)
3408
except NameError:
3409
pass
3410
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3411
logger.warning("Could not save persistent state: {}"
3412
.format(os.strerror(e.errno)))
3413
else:
3414
logger.warning("Could not save persistent state:",
3415
exc_info=e)
3416
raise
3417
3418
# Delete all clients, and settings from config
1846
service.cleanup()
1847
3419
1848
while tcp_server.clients:
3420
name, client = tcp_server.clients.popitem()
1849
client = tcp_server.clients.pop()
3421
1850
if use_dbus:
3422
1851
client.remove_from_connection()
3423
# Don't signal the disabling
1852
client.disable_hook = None
1853
# Don't signal anything except ClientRemoved
3424
1854
client.disable(quiet=True)
3425
# Emit D-Bus signal for removal
3426
1855
if use_dbus:
3427
mandos_dbus_service.client_removed_signal(client)
3428
client_settings.clear()
3429
1856
# Emit D-Bus signal
1857
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
1858
client.name)
1859
3430
1860
atexit.register(cleanup)
3431
3432
for client in tcp_server.clients.values():
1861
1862
for client in tcp_server.clients:
3433
1863
if use_dbus:
3434
# Emit D-Bus signal for adding
3435
mandos_dbus_service.client_added_signal(client)
3436
# Need to initiate checking of clients
3437
if client.enabled:
3438
client.init_checker()
3439
1864
# Emit D-Bus signal
1865
mandos_dbus_service.ClientAdded(client.dbus_object_path)
1866
client.enable()
1867
3440
1868
tcp_server.enable()
3441
1869
tcp_server.server_activate()
3442
1870
3443
1871
# Find out what port we got
3444
if zeroconf:
3445
service.port = tcp_server.socket.getsockname()[1]
1872
service.port = tcp_server.socket.getsockname()[1]
3446
1873
if use_ipv6:
3447
logger.info("Now listening on address %r, port %d,"
3448
" flowinfo %d, scope_id %d",
3449
*tcp_server.socket.getsockname())
1874
logger.info(u"Now listening on address %r, port %d,"
1875
" flowinfo %d, scope_id %d"
1876
% tcp_server.socket.getsockname())
3450
1877
else: # IPv4
3451
logger.info("Now listening on address %r, port %d",
3452
*tcp_server.socket.getsockname())
3453
3454
# service.interface = tcp_server.socket.getsockname()[3]
3455
1878
logger.info(u"Now listening on address %r, port %d"
1879
% tcp_server.socket.getsockname())
1880
1881
#service.interface = tcp_server.socket.getsockname()[3]
1882
3456
1883
try:
3457
if zeroconf:
3458
# From the Avahi example code
3459
try:
3460
service.activate()
3461
except dbus.exceptions.DBusException as error:
3462
logger.critical("D-Bus Exception", exc_info=error)
3463
cleanup()
3464
sys.exit(1)
3465
# End of Avahi example code
3466
3467
GLib.io_add_watch(tcp_server.fileno(), GLib.IO_IN,
3468
lambda *args, **kwargs:
3469
(tcp_server.handle_request
3470
(*args[2:], **kwargs) or True))
3471
3472
logger.debug("Starting main loop")
1884
# From the Avahi example code
1885
try:
1886
service.activate()
1887
except dbus.exceptions.DBusException, error:
1888
logger.critical(u"DBusException: %s", error)
1889
cleanup()
1890
sys.exit(1)
1891
# End of Avahi example code
1892
1893
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
1894
lambda *args, **kwargs:
1895
(tcp_server.handle_request
1896
(*args[2:], **kwargs) or True))
1897
1898
logger.debug(u"Starting main loop")
3473
1899
main_loop.run()
3474
except AvahiError as error:
3475
logger.critical("Avahi Error", exc_info=error)
1900
except AvahiError, error:
1901
logger.critical(u"AvahiError: %s", error)
3476
1902
cleanup()
3477
1903
sys.exit(1)
3478
1904
except KeyboardInterrupt:
3479
1905
if debug:
3480
print("", file=sys.stderr)
3481
logger.debug("Server received KeyboardInterrupt")
3482
logger.debug("Server exiting")
1906
print >> sys.stderr
1907
logger.debug(u"Server received KeyboardInterrupt")
1908
logger.debug(u"Server exiting")
3483
1909
# Must run before the D-Bus bus name gets deregistered
3484
1910
cleanup()
3485
1911
3486
3487
1912
if __name__ == '__main__':
3488
1913
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0