247
240
last_checked_ok: datetime.datetime(); (UTC) or None
248
241
timeout: datetime.timedelta(); How long from last_checked_ok
249
until this client is disabled
242
until this client is invalid
250
243
interval: datetime.timedelta(); How often to start a new checker
251
244
disable_hook: If set, called by disable() as disable_hook(self)
252
245
checker: subprocess.Popen(); a running checker process used
253
246
to see if the client lives.
254
247
'None' if no process is running.
255
248
checker_initiator_tag: a gobject event source tag, or None
256
disable_initiator_tag: - '' -
249
disable_initiator_tag: - '' -
257
250
checker_callback_tag: - '' -
258
251
checker_command: string; External command which is run to check if
259
252
client lives. %() expansions are done at
260
253
runtime with vars(self) as dict, so that for
261
254
instance %(name)s can be used in the command.
262
255
current_checker_command: string; current running checker_command
263
approved_delay: datetime.timedelta(); Time to wait for approval
264
_approved: bool(); 'None' if not yet approved/disapproved
265
approved_duration: datetime.timedelta(); Duration of one approval
269
def _timedelta_to_milliseconds(td):
270
"Convert a datetime.timedelta() to milliseconds"
271
return ((td.days * 24 * 60 * 60 * 1000)
272
+ (td.seconds * 1000)
273
+ (td.microseconds // 1000))
259
def _datetime_to_milliseconds(dt):
260
"Convert a datetime.datetime() to milliseconds"
261
return ((dt.days * 24 * 60 * 60 * 1000)
262
+ (dt.seconds * 1000)
263
+ (dt.microseconds // 1000))
275
265
def timeout_milliseconds(self):
276
266
"Return the 'timeout' attribute in milliseconds"
277
return self._timedelta_to_milliseconds(self.timeout)
267
return self._datetime_to_milliseconds(self.timeout)
279
269
def interval_milliseconds(self):
280
270
"Return the 'interval' attribute in milliseconds"
281
return self._timedelta_to_milliseconds(self.interval)
283
def approved_delay_milliseconds(self):
284
return self._timedelta_to_milliseconds(self.approved_delay)
271
return self._datetime_to_milliseconds(self.interval)
286
273
def __init__(self, name = None, disable_hook=None, config=None):
287
274
"""Note: the 'checker' key in 'config' sets the
323
309
self.checker_command = config[u"checker"]
324
310
self.current_checker_command = None
325
311
self.last_connect = None
326
self.approvals_pending = 0
327
self._approved = None
328
self.approved_by_default = config.get(u"approved_by_default",
330
self.approved_delay = string_to_delta(
331
config[u"approved_delay"])
332
self.approved_duration = string_to_delta(
333
config[u"approved_duration"])
334
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
336
def send_changedstate(self):
337
self.changedstate.acquire()
338
self.changedstate.notify_all()
339
self.changedstate.release()
341
313
def enable(self):
342
314
"""Start this client's checker and timeout hooks"""
343
315
if getattr(self, u"enabled", False):
344
316
# Already enabled
346
self.send_changedstate()
347
318
self.last_enabled = datetime.datetime.utcnow()
348
319
# Schedule a new checker to be started an 'interval' from now,
349
320
# and every interval from then on.
350
321
self.checker_initiator_tag = (gobject.timeout_add
351
322
(self.interval_milliseconds(),
352
323
self.start_checker))
324
# Also start a new checker *right now*.
353
326
# Schedule a disable() when 'timeout' has passed
354
327
self.disable_initiator_tag = (gobject.timeout_add
355
328
(self.timeout_milliseconds(),
357
330
self.enabled = True
358
# Also start a new checker *right now*.
361
def disable(self, quiet=True):
362
333
"""Disable this client."""
363
334
if not getattr(self, "enabled", False):
366
self.send_changedstate()
368
logger.info(u"Disabling client %s", self.name)
336
logger.info(u"Disabling client %s", self.name)
369
337
if getattr(self, u"disable_initiator_tag", False):
370
338
gobject.source_remove(self.disable_initiator_tag)
371
339
self.disable_initiator_tag = None
495
458
logger.debug(u"Stopping checker for %(name)s", vars(self))
497
460
os.kill(self.checker.pid, signal.SIGTERM)
499
462
#if self.checker.poll() is None:
500
463
# os.kill(self.checker.pid, signal.SIGKILL)
501
464
except OSError, error:
502
465
if error.errno != errno.ESRCH: # No such process
504
467
self.checker = None
506
def dbus_service_property(dbus_interface, signature=u"v",
507
access=u"readwrite", byte_arrays=False):
508
"""Decorators for marking methods of a DBusObjectWithProperties to
509
become properties on the D-Bus.
511
The decorated method will be called with no arguments by "Get"
512
and with one argument by "Set".
514
The parameters, where they are supported, are the same as
515
dbus.service.method, except there is only "signature", since the
516
type from Get() and the type sent to Set() is the same.
518
# Encoding deeply encoded byte arrays is not supported yet by the
519
# "Set" method, so we fail early here:
520
if byte_arrays and signature != u"ay":
521
raise ValueError(u"Byte arrays not supported for non-'ay'"
522
u" signature %r" % signature)
524
func._dbus_is_property = True
525
func._dbus_interface = dbus_interface
526
func._dbus_signature = signature
527
func._dbus_access = access
528
func._dbus_name = func.__name__
529
if func._dbus_name.endswith(u"_dbus_property"):
530
func._dbus_name = func._dbus_name[:-14]
531
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
536
class DBusPropertyException(dbus.exceptions.DBusException):
537
"""A base class for D-Bus property-related exceptions
539
def __unicode__(self):
540
return unicode(str(self))
543
class DBusPropertyAccessException(DBusPropertyException):
544
"""A property's access permissions disallows an operation.
549
class DBusPropertyNotFound(DBusPropertyException):
550
"""An attempt was made to access a non-existing property.
555
class DBusObjectWithProperties(dbus.service.Object):
556
"""A D-Bus object with properties.
558
Classes inheriting from this can use the dbus_service_property
559
decorator to expose methods as D-Bus properties. It exposes the
560
standard Get(), Set(), and GetAll() methods on the D-Bus.
564
def _is_dbus_property(obj):
565
return getattr(obj, u"_dbus_is_property", False)
567
def _get_all_dbus_properties(self):
568
"""Returns a generator of (name, attribute) pairs
570
return ((prop._dbus_name, prop)
572
inspect.getmembers(self, self._is_dbus_property))
574
def _get_dbus_property(self, interface_name, property_name):
575
"""Returns a bound method if one exists which is a D-Bus
576
property with the specified name and interface.
578
for name in (property_name,
579
property_name + u"_dbus_property"):
580
prop = getattr(self, name, None)
582
or not self._is_dbus_property(prop)
583
or prop._dbus_name != property_name
584
or (interface_name and prop._dbus_interface
585
and interface_name != prop._dbus_interface)):
589
raise DBusPropertyNotFound(self.dbus_object_path + u":"
590
+ interface_name + u"."
593
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
595
def Get(self, interface_name, property_name):
596
"""Standard D-Bus property Get() method, see D-Bus standard.
598
prop = self._get_dbus_property(interface_name, property_name)
599
if prop._dbus_access == u"write":
600
raise DBusPropertyAccessException(property_name)
602
if not hasattr(value, u"variant_level"):
604
return type(value)(value, variant_level=value.variant_level+1)
606
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
607
def Set(self, interface_name, property_name, value):
608
"""Standard D-Bus property Set() method, see D-Bus standard.
610
prop = self._get_dbus_property(interface_name, property_name)
611
if prop._dbus_access == u"read":
612
raise DBusPropertyAccessException(property_name)
613
if prop._dbus_get_args_options[u"byte_arrays"]:
614
# The byte_arrays option is not supported yet on
615
# signatures other than "ay".
616
if prop._dbus_signature != u"ay":
618
value = dbus.ByteArray(''.join(unichr(byte)
622
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
623
out_signature=u"a{sv}")
624
def GetAll(self, interface_name):
625
"""Standard D-Bus property GetAll() method, see D-Bus
628
Note: Will not include properties with access="write".
631
for name, prop in self._get_all_dbus_properties():
633
and interface_name != prop._dbus_interface):
634
# Interface non-empty but did not match
636
# Ignore write-only properties
637
if prop._dbus_access == u"write":
640
if not hasattr(value, u"variant_level"):
643
all[name] = type(value)(value, variant_level=
644
value.variant_level+1)
645
return dbus.Dictionary(all, signature=u"sv")
647
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
649
path_keyword='object_path',
650
connection_keyword='connection')
651
def Introspect(self, object_path, connection):
652
"""Standard D-Bus method, overloaded to insert property tags.
654
xmlstring = dbus.service.Object.Introspect(self, object_path,
657
document = xml.dom.minidom.parseString(xmlstring)
658
def make_tag(document, name, prop):
659
e = document.createElement(u"property")
660
e.setAttribute(u"name", name)
661
e.setAttribute(u"type", prop._dbus_signature)
662
e.setAttribute(u"access", prop._dbus_access)
664
for if_tag in document.getElementsByTagName(u"interface"):
665
for tag in (make_tag(document, name, prop)
667
in self._get_all_dbus_properties()
668
if prop._dbus_interface
669
== if_tag.getAttribute(u"name")):
670
if_tag.appendChild(tag)
671
# Add the names to the return values for the
672
# "org.freedesktop.DBus.Properties" methods
673
if (if_tag.getAttribute(u"name")
674
== u"org.freedesktop.DBus.Properties"):
675
for cn in if_tag.getElementsByTagName(u"method"):
676
if cn.getAttribute(u"name") == u"Get":
677
for arg in cn.getElementsByTagName(u"arg"):
678
if (arg.getAttribute(u"direction")
680
arg.setAttribute(u"name", u"value")
681
elif cn.getAttribute(u"name") == u"GetAll":
682
for arg in cn.getElementsByTagName(u"arg"):
683
if (arg.getAttribute(u"direction")
685
arg.setAttribute(u"name", u"props")
686
xmlstring = document.toxml(u"utf-8")
688
except (AttributeError, xml.dom.DOMException,
689
xml.parsers.expat.ExpatError), error:
690
logger.error(u"Failed to override Introspection method",
695
class ClientDBus(Client, DBusObjectWithProperties):
469
def still_valid(self):
470
"""Has the timeout not yet passed for this client?"""
471
if not getattr(self, u"enabled", False):
473
now = datetime.datetime.utcnow()
474
if self.last_checked_ok is None:
475
return now < (self.created + self.timeout)
477
return now < (self.last_checked_ok + self.timeout)
480
class ClientDBus(Client, dbus.service.Object):
696
481
"""A Client class using D-Bus
614
# GetAllProperties - method
615
@dbus.service.method(_interface, out_signature=u"a{sv}")
616
def GetAllProperties(self):
618
return dbus.Dictionary({
619
dbus.String(u"name"):
620
dbus.String(self.name, variant_level=1),
621
dbus.String(u"fingerprint"):
622
dbus.String(self.fingerprint, variant_level=1),
623
dbus.String(u"host"):
624
dbus.String(self.host, variant_level=1),
625
dbus.String(u"created"):
626
self._datetime_to_dbus(self.created,
628
dbus.String(u"last_enabled"):
629
(self._datetime_to_dbus(self.last_enabled,
631
if self.last_enabled is not None
632
else dbus.Boolean(False, variant_level=1)),
633
dbus.String(u"enabled"):
634
dbus.Boolean(self.enabled, variant_level=1),
635
dbus.String(u"last_checked_ok"):
636
(self._datetime_to_dbus(self.last_checked_ok,
638
if self.last_checked_ok is not None
639
else dbus.Boolean (False, variant_level=1)),
640
dbus.String(u"timeout"):
641
dbus.UInt64(self.timeout_milliseconds(),
643
dbus.String(u"interval"):
644
dbus.UInt64(self.interval_milliseconds(),
646
dbus.String(u"checker"):
647
dbus.String(self.checker_command,
649
dbus.String(u"checker_running"):
650
dbus.Boolean(self.checker is not None,
652
dbus.String(u"object_path"):
653
dbus.ObjectPath(self.dbus_object_path,
657
# IsStillValid - method
658
@dbus.service.method(_interface, out_signature=u"b")
659
def IsStillValid(self):
660
return self.still_valid()
838
662
# PropertyChanged - signal
839
663
@dbus.service.signal(_interface, signature=u"sv")
840
664
def PropertyChanged(self, property, value):
668
# ReceivedSecret - signal
845
669
@dbus.service.signal(_interface)
670
def ReceivedSecret(self):
850
674
# Rejected - signal
851
@dbus.service.signal(_interface, signature=u"s")
852
def Rejected(self, reason):
856
# NeedApproval - signal
857
@dbus.service.signal(_interface, signature=u"db")
858
def NeedApproval(self, timeout, default):
865
@dbus.service.method(_interface, in_signature=u"b")
866
def Approve(self, value):
870
@dbus.service.method(_interface)
872
return self.checked_ok()
675
@dbus.service.signal(_interface)
680
# SetChecker - method
681
@dbus.service.method(_interface, in_signature=u"s")
682
def SetChecker(self, checker):
683
"D-Bus setter method"
684
self.checker_command = checker
686
self.PropertyChanged(dbus.String(u"checker"),
687
dbus.String(self.checker_command,
691
@dbus.service.method(_interface, in_signature=u"s")
692
def SetHost(self, host):
693
"D-Bus setter method"
696
self.PropertyChanged(dbus.String(u"host"),
697
dbus.String(self.host, variant_level=1))
699
# SetInterval - method
700
@dbus.service.method(_interface, in_signature=u"t")
701
def SetInterval(self, milliseconds):
702
self.interval = datetime.timedelta(0, 0, 0, milliseconds)
704
self.PropertyChanged(dbus.String(u"interval"),
705
(dbus.UInt64(self.interval_milliseconds(),
709
@dbus.service.method(_interface, in_signature=u"ay",
711
def SetSecret(self, secret):
712
"D-Bus setter method"
713
self.secret = str(secret)
715
# SetTimeout - method
716
@dbus.service.method(_interface, in_signature=u"t")
717
def SetTimeout(self, milliseconds):
718
self.timeout = datetime.timedelta(0, 0, 0, milliseconds)
720
self.PropertyChanged(dbus.String(u"timeout"),
721
(dbus.UInt64(self.timeout_milliseconds(),
874
724
# Enable - method
875
725
@dbus.service.method(_interface)
894
744
def StopChecker(self):
895
745
self.stop_checker()
899
# approved_pending - property
900
@dbus_service_property(_interface, signature=u"b", access=u"read")
901
def approved_pending_dbus_property(self):
902
return dbus.Boolean(self.approved_pending())
904
# approved_by_default - property
905
@dbus_service_property(_interface, signature=u"b",
907
def approved_by_default_dbus_property(self):
908
return dbus.Boolean(self.approved_by_default)
910
# approved_delay - property
911
@dbus_service_property(_interface, signature=u"t",
913
def approved_delay_dbus_property(self):
914
return dbus.UInt64(self.approved_delay_milliseconds())
916
# approved_duration - property
917
@dbus_service_property(_interface, signature=u"t",
919
def approved_duration_dbus_property(self):
920
return dbus.UInt64(self._timedelta_to_milliseconds(
921
self.approved_duration))
924
@dbus_service_property(_interface, signature=u"s", access=u"read")
925
def name_dbus_property(self):
926
return dbus.String(self.name)
928
# fingerprint - property
929
@dbus_service_property(_interface, signature=u"s", access=u"read")
930
def fingerprint_dbus_property(self):
931
return dbus.String(self.fingerprint)
934
@dbus_service_property(_interface, signature=u"s",
936
def host_dbus_property(self, value=None):
937
if value is None: # get
938
return dbus.String(self.host)
941
self.PropertyChanged(dbus.String(u"host"),
942
dbus.String(value, variant_level=1))
945
@dbus_service_property(_interface, signature=u"s", access=u"read")
946
def created_dbus_property(self):
947
return dbus.String(self._datetime_to_dbus(self.created))
949
# last_enabled - property
950
@dbus_service_property(_interface, signature=u"s", access=u"read")
951
def last_enabled_dbus_property(self):
952
if self.last_enabled is None:
953
return dbus.String(u"")
954
return dbus.String(self._datetime_to_dbus(self.last_enabled))
957
@dbus_service_property(_interface, signature=u"b",
959
def enabled_dbus_property(self, value=None):
960
if value is None: # get
961
return dbus.Boolean(self.enabled)
967
# last_checked_ok - property
968
@dbus_service_property(_interface, signature=u"s",
970
def last_checked_ok_dbus_property(self, value=None):
971
if value is not None:
974
if self.last_checked_ok is None:
975
return dbus.String(u"")
976
return dbus.String(self._datetime_to_dbus(self
980
@dbus_service_property(_interface, signature=u"t",
982
def timeout_dbus_property(self, value=None):
983
if value is None: # get
984
return dbus.UInt64(self.timeout_milliseconds())
985
self.timeout = datetime.timedelta(0, 0, 0, value)
987
self.PropertyChanged(dbus.String(u"timeout"),
988
dbus.UInt64(value, variant_level=1))
989
if getattr(self, u"disable_initiator_tag", None) is None:
992
gobject.source_remove(self.disable_initiator_tag)
993
self.disable_initiator_tag = None
995
_timedelta_to_milliseconds((self
1000
if time_to_die <= 0:
1001
# The timeout has passed
1004
self.disable_initiator_tag = (gobject.timeout_add
1005
(time_to_die, self.disable))
1007
# interval - property
1008
@dbus_service_property(_interface, signature=u"t",
1009
access=u"readwrite")
1010
def interval_dbus_property(self, value=None):
1011
if value is None: # get
1012
return dbus.UInt64(self.interval_milliseconds())
1013
self.interval = datetime.timedelta(0, 0, 0, value)
1015
self.PropertyChanged(dbus.String(u"interval"),
1016
dbus.UInt64(value, variant_level=1))
1017
if getattr(self, u"checker_initiator_tag", None) is None:
1019
# Reschedule checker run
1020
gobject.source_remove(self.checker_initiator_tag)
1021
self.checker_initiator_tag = (gobject.timeout_add
1022
(value, self.start_checker))
1023
self.start_checker() # Start one now, too
1025
# checker - property
1026
@dbus_service_property(_interface, signature=u"s",
1027
access=u"readwrite")
1028
def checker_dbus_property(self, value=None):
1029
if value is None: # get
1030
return dbus.String(self.checker_command)
1031
self.checker_command = value
1033
self.PropertyChanged(dbus.String(u"checker"),
1034
dbus.String(self.checker_command,
1037
# checker_running - property
1038
@dbus_service_property(_interface, signature=u"b",
1039
access=u"readwrite")
1040
def checker_running_dbus_property(self, value=None):
1041
if value is None: # get
1042
return dbus.Boolean(self.checker is not None)
1044
self.start_checker()
1048
# object_path - property
1049
@dbus_service_property(_interface, signature=u"o", access=u"read")
1050
def object_path_dbus_property(self):
1051
return self.dbus_object_path # is already a dbus.ObjectPath
1054
@dbus_service_property(_interface, signature=u"ay",
1055
access=u"write", byte_arrays=True)
1056
def secret_dbus_property(self, value):
1057
self.secret = str(value)
1062
class ProxyClient(object):
1063
def __init__(self, child_pipe, fpr, address):
1064
self._pipe = child_pipe
1065
self._pipe.send(('init', fpr, address))
1066
if not self._pipe.recv():
1069
def __getattribute__(self, name):
1070
if(name == '_pipe'):
1071
return super(ProxyClient, self).__getattribute__(name)
1072
self._pipe.send(('getattr', name))
1073
data = self._pipe.recv()
1074
if data[0] == 'data':
1076
if data[0] == 'function':
1077
def func(*args, **kwargs):
1078
self._pipe.send(('funcall', name, args, kwargs))
1079
return self._pipe.recv()[1]
1082
def __setattr__(self, name, value):
1083
if(name == '_pipe'):
1084
return super(ProxyClient, self).__setattr__(name, value)
1085
self._pipe.send(('setattr', name, value))
1088
750
class ClientHandler(socketserver.BaseRequestHandler, object):
1089
751
"""A class to handle client connections.
1092
754
Note: This will run in its own forked process."""
1094
756
def handle(self):
1095
with contextlib.closing(self.server.child_pipe) as child_pipe:
1096
logger.info(u"TCP connection from: %s",
1097
unicode(self.client_address))
1098
logger.debug(u"Pipe FD: %d",
1099
self.server.child_pipe.fileno())
757
logger.info(u"TCP connection from: %s",
758
unicode(self.client_address))
759
logger.debug(u"IPC Pipe FD: %d", self.server.pipe[1])
760
# Open IPC pipe to parent process
761
with closing(os.fdopen(self.server.pipe[1], u"w", 1)) as ipc:
1101
762
session = (gnutls.connection
1102
763
.ClientSession(self.request,
1103
764
gnutls.connection
1104
765
.X509Credentials()))
767
line = self.request.makefile().readline()
768
logger.debug(u"Protocol version: %r", line)
770
if int(line.strip().split()[0]) > 1:
772
except (ValueError, IndexError, RuntimeError), error:
773
logger.error(u"Unknown protocol version: %s", error)
1106
776
# Note: gnutls.connection.X509Credentials is really a
1107
777
# generic GnuTLS certificate credentials object so long as
1108
778
# no X.509 keys are added to it. Therefore, we can use it
1109
779
# here despite using OpenPGP certificates.
1111
781
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1112
782
# u"+AES-256-CBC", u"+SHA1",
1113
783
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1140
798
# established. Just abandon the request.
1142
800
logger.debug(u"Handshake succeeded")
1144
approval_required = False
1147
fpr = self.fingerprint(self.peer_certificate
1149
except (TypeError, gnutls.errors.GNUTLSError), error:
1150
logger.warning(u"Bad certificate: %s", error)
1152
logger.debug(u"Fingerprint: %s", fpr)
1155
client = ProxyClient(child_pipe, fpr,
1156
self.client_address)
1160
if client.approved_delay:
1161
delay = client.approved_delay
1162
client.approvals_pending += 1
1163
approval_required = True
1166
if not client.enabled:
1167
logger.warning(u"Client %s is disabled",
1169
if self.server.use_dbus:
1171
client.Rejected("Disabled")
1174
if client._approved or not client.approved_delay:
1175
#We are approved or approval is disabled
1177
elif client._approved is None:
1178
logger.info(u"Client %s need approval",
1180
if self.server.use_dbus:
1182
client.NeedApproval(
1183
client.approved_delay_milliseconds(),
1184
client.approved_by_default)
1186
logger.warning(u"Client %s was not approved",
1188
if self.server.use_dbus:
1190
client.Rejected("Disapproved")
1193
#wait until timeout or approved
1194
#x = float(client._timedelta_to_milliseconds(delay))
1195
time = datetime.datetime.now()
1196
client.changedstate.acquire()
1197
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1198
client.changedstate.release()
1199
time2 = datetime.datetime.now()
1200
if (time2 - time) >= delay:
1201
if not client.approved_by_default:
1202
logger.warning("Client %s timed out while"
1203
" waiting for approval",
1205
if self.server.use_dbus:
1207
client.Rejected("Time out")
1212
delay -= time2 - time
1215
while sent_size < len(client.secret):
1216
# XXX handle session exception
1217
sent = session.send(client.secret[sent_size:])
1218
logger.debug(u"Sent: %d, remaining: %d",
1219
sent, len(client.secret)
1220
- (sent_size + sent))
1223
logger.info(u"Sending secret to %s", client.name)
1224
# bump the timeout as if seen
1226
if self.server.use_dbus:
802
fpr = self.fingerprint(self.peer_certificate(session))
803
except (TypeError, gnutls.errors.GNUTLSError), error:
804
logger.warning(u"Bad certificate: %s", error)
807
logger.debug(u"Fingerprint: %s", fpr)
1231
if approval_required:
1232
client.approvals_pending -= 1
809
for c in self.server.clients:
810
if c.fingerprint == fpr:
814
ipc.write(u"NOTFOUND %s %s\n"
815
% (fpr, unicode(self.client_address)))
818
# Have to check if client.still_valid(), since it is
819
# possible that the client timed out while establishing
820
# the GnuTLS session.
821
if not client.still_valid():
822
ipc.write(u"INVALID %s\n" % client.name)
825
ipc.write(u"SENDING %s\n" % client.name)
827
while sent_size < len(client.secret):
828
sent = session.send(client.secret[sent_size:])
829
logger.debug(u"Sent: %d, remaining: %d",
830
sent, len(client.secret)
831
- (sent_size + sent))
1236
836
def peer_certificate(session):
1299
class MultiprocessingMixIn(object):
1300
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1301
def sub_process_main(self, request, address):
1303
self.finish_request(request, address)
1305
self.handle_error(request, address)
1306
self.close_request(request)
1308
def process_request(self, request, address):
1309
"""Start a new process to process the request."""
1310
multiprocessing.Process(target = self.sub_process_main,
1311
args = (request, address)).start()
1313
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1314
""" adds a pipe to the MixIn """
899
class ForkingMixInWithPipe(socketserver.ForkingMixIn, object):
900
"""Like socketserver.ForkingMixIn, but also pass a pipe."""
1315
901
def process_request(self, request, client_address):
1316
902
"""Overrides and wraps the original process_request().
1318
904
This function creates a new pipe in self.pipe
1320
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1322
super(MultiprocessingMixInWithPipe,
906
self.pipe = os.pipe()
907
super(ForkingMixInWithPipe,
1323
908
self).process_request(request, client_address)
1324
self.add_pipe(parent_pipe)
1325
def add_pipe(self, parent_pipe):
909
os.close(self.pipe[1]) # close write end
910
self.add_pipe(self.pipe[0])
911
def add_pipe(self, pipe):
1326
912
"""Dummy function; override as necessary"""
1329
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
916
class IPv6_TCPServer(ForkingMixInWithPipe,
1330
917
socketserver.TCPServer, object):
1331
918
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1443
1026
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1444
1027
conditions_string)
1446
# Read a request from the child
1447
request = parent_pipe.recv()
1448
command = request[0]
1029
# Turn the pipe file descriptor into a Python file object
1030
if source not in file_objects:
1031
file_objects[source] = os.fdopen(source, u"r", 1)
1450
if command == 'init':
1452
address = request[2]
1454
for c in self.clients:
1455
if c.fingerprint == fpr:
1459
logger.warning(u"Client not found for fingerprint: %s, ad"
1460
u"dress: %s", fpr, address)
1463
mandos_dbus_service.ClientNotFound(fpr, address)
1464
parent_pipe.send(False)
1467
gobject.io_add_watch(parent_pipe.fileno(),
1468
gobject.IO_IN | gobject.IO_HUP,
1469
functools.partial(self.handle_ipc,
1470
parent_pipe = parent_pipe,
1471
client_object = client))
1472
parent_pipe.send(True)
1473
# remove the old hook in favor of the new above hook on same fileno
1033
# Read a line from the file object
1034
cmdline = file_objects[source].readline()
1035
if not cmdline: # Empty line means end of file
1036
# close the IPC pipe
1037
file_objects[source].close()
1038
del file_objects[source]
1040
# Stop calling this function
1475
if command == 'funcall':
1476
funcname = request[1]
1480
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1482
if command == 'getattr':
1483
attrname = request[1]
1484
if callable(client_object.__getattribute__(attrname)):
1485
parent_pipe.send(('function',))
1487
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1489
if command == 'setattr':
1490
attrname = request[1]
1492
setattr(client_object, attrname, value)
1043
logger.debug(u"IPC command: %r", cmdline)
1045
# Parse and act on command
1046
cmd, args = cmdline.rstrip(u"\r\n").split(None, 1)
1048
if cmd == u"NOTFOUND":
1049
logger.warning(u"Client not found for fingerprint: %s",
1053
mandos_dbus_service.ClientNotFound(args)
1054
elif cmd == u"INVALID":
1055
for client in self.clients:
1056
if client.name == args:
1057
logger.warning(u"Client %s is invalid", args)
1063
logger.error(u"Unknown client %s is invalid", args)
1064
elif cmd == u"SENDING":
1065
for client in self.clients:
1066
if client.name == args:
1067
logger.info(u"Sending secret to %s", client.name)
1071
client.ReceivedSecret()
1074
logger.error(u"Sending secret to unknown client %s",
1077
logger.error(u"Unknown IPC command: %r", cmdline)
1079
# Keep calling this function