308
316
"host", "interval", "last_checked_ok",
309
317
"last_enabled", "name", "timeout")
312
def _timedelta_to_milliseconds(td):
313
"Convert a datetime.timedelta() to milliseconds"
314
return ((td.days * 24 * 60 * 60 * 1000)
315
+ (td.seconds * 1000)
316
+ (td.microseconds // 1000))
318
319
def timeout_milliseconds(self):
319
320
"Return the 'timeout' attribute in milliseconds"
320
return self._timedelta_to_milliseconds(self.timeout)
321
return _timedelta_to_milliseconds(self.timeout)
322
323
def extended_timeout_milliseconds(self):
323
324
"Return the 'extended_timeout' attribute in milliseconds"
324
return self._timedelta_to_milliseconds(self.extended_timeout)
325
return _timedelta_to_milliseconds(self.extended_timeout)
326
327
def interval_milliseconds(self):
327
328
"Return the 'interval' attribute in milliseconds"
328
return self._timedelta_to_milliseconds(self.interval)
329
return _timedelta_to_milliseconds(self.interval)
330
331
def approval_delay_milliseconds(self):
331
return self._timedelta_to_milliseconds(self.approval_delay)
332
return _timedelta_to_milliseconds(self.approval_delay)
333
334
def __init__(self, name = None, disable_hook=None, config=None):
334
335
"""Note: the 'checker' key in 'config' sets the
626
631
def _get_all_dbus_properties(self):
627
632
"""Returns a generator of (name, attribute) pairs
629
return ((prop._dbus_name, prop)
634
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
635
for cls in self.__class__.__mro__
630
636
for name, prop in
631
inspect.getmembers(self, self._is_dbus_property))
637
inspect.getmembers(cls, self._is_dbus_property))
633
639
def _get_dbus_property(self, interface_name, property_name):
634
640
"""Returns a bound method if one exists which is a D-Bus
635
641
property with the specified name and interface.
637
for name in (property_name,
638
property_name + "_dbus_property"):
639
prop = getattr(self, name, None)
641
or not self._is_dbus_property(prop)
642
or prop._dbus_name != property_name
643
or (interface_name and prop._dbus_interface
644
and interface_name != prop._dbus_interface)):
643
for cls in self.__class__.__mro__:
644
for name, value in (inspect.getmembers
645
(cls, self._is_dbus_property)):
646
if (value._dbus_name == property_name
647
and value._dbus_interface == interface_name):
648
return value.__get__(self)
647
650
# No such property
648
651
raise DBusPropertyNotFound(self.dbus_object_path + ":"
649
652
+ interface_name + "."
757
def datetime_to_dbus (dt, variant_level=0):
758
"""Convert a UTC datetime.datetime() to a D-Bus type."""
760
return dbus.String("", variant_level = variant_level)
761
return dbus.String(dt.isoformat(),
762
variant_level=variant_level)
764
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
766
"""Applied to an empty subclass of a D-Bus object, this metaclass
767
will add additional D-Bus attributes matching a certain pattern.
769
def __new__(mcs, name, bases, attr):
770
# Go through all the base classes which could have D-Bus
771
# methods, signals, or properties in them
772
for base in (b for b in bases
773
if issubclass(b, dbus.service.Object)):
774
# Go though all attributes of the base class
775
for attrname, attribute in inspect.getmembers(base):
776
# Ignore non-D-Bus attributes, and D-Bus attributes
777
# with the wrong interface name
778
if (not hasattr(attribute, "_dbus_interface")
779
or not attribute._dbus_interface
780
.startswith("se.recompile.Mandos")):
782
# Create an alternate D-Bus interface name based on
784
alt_interface = (attribute._dbus_interface
785
.replace("se.recompile.Mandos",
786
"se.bsnet.fukt.Mandos"))
787
# Is this a D-Bus signal?
788
if getattr(attribute, "_dbus_is_signal", False):
789
# Extract the original non-method function by
791
nonmethod_func = (dict(
792
zip(attribute.func_code.co_freevars,
793
attribute.__closure__))["func"]
795
# Create a new, but exactly alike, function
796
# object, and decorate it to be a new D-Bus signal
797
# with the alternate D-Bus interface name
798
new_function = (dbus.service.signal
800
attribute._dbus_signature)
802
nonmethod_func.func_code,
803
nonmethod_func.func_globals,
804
nonmethod_func.func_name,
805
nonmethod_func.func_defaults,
806
nonmethod_func.func_closure)))
807
# Define a creator of a function to call both the
808
# old and new functions, so both the old and new
809
# signals gets sent when the function is called
810
def fixscope(func1, func2):
811
"""This function is a scope container to pass
812
func1 and func2 to the "call_both" function
813
outside of its arguments"""
814
def call_both(*args, **kwargs):
815
"""This function will emit two D-Bus
816
signals by calling func1 and func2"""
817
func1(*args, **kwargs)
818
func2(*args, **kwargs)
820
# Create the "call_both" function and add it to
822
attr[attrname] = fixscope(attribute,
824
# Is this a D-Bus method?
825
elif getattr(attribute, "_dbus_is_method", False):
826
# Create a new, but exactly alike, function
827
# object. Decorate it to be a new D-Bus method
828
# with the alternate D-Bus interface name. Add it
830
attr[attrname] = (dbus.service.method
832
attribute._dbus_in_signature,
833
attribute._dbus_out_signature)
835
(attribute.func_code,
836
attribute.func_globals,
838
attribute.func_defaults,
839
attribute.func_closure)))
840
# Is this a D-Bus property?
841
elif getattr(attribute, "_dbus_is_property", False):
842
# Create a new, but exactly alike, function
843
# object, and decorate it to be a new D-Bus
844
# property with the alternate D-Bus interface
845
# name. Add it to the class.
846
attr[attrname] = (dbus_service_property
848
attribute._dbus_signature,
849
attribute._dbus_access,
851
._dbus_get_args_options
854
(attribute.func_code,
855
attribute.func_globals,
857
attribute.func_defaults,
858
attribute.func_closure)))
859
return type.__new__(mcs, name, bases, attr)
754
861
class ClientDBus(Client, DBusObjectWithProperties):
755
862
"""A Client class using D-Bus
777
884
("/clients/" + client_object_name))
778
885
DBusObjectWithProperties.__init__(self, self.bus,
779
886
self.dbus_object_path)
780
def _set_expires(self, value):
781
old_value = getattr(self, "_expires", None)
782
self._expires = value
783
if hasattr(self, "dbus_object_path") and old_value != value:
784
dbus_time = (self._datetime_to_dbus(self._expires,
786
self.PropertyChanged(dbus.String("Expires"),
788
expires = property(lambda self: self._expires, _set_expires)
791
def _get_approvals_pending(self):
792
return self._approvals_pending
793
def _set_approvals_pending(self, value):
794
old_value = self._approvals_pending
795
self._approvals_pending = value
797
if (hasattr(self, "dbus_object_path")
798
and bval is not bool(old_value)):
799
dbus_bool = dbus.Boolean(bval, variant_level=1)
800
self.PropertyChanged(dbus.String("ApprovalPending"),
888
def notifychangeproperty(transform_func,
889
dbus_name, type_func=lambda x: x,
891
""" Modify a variable so that it's a property which announces
803
approvals_pending = property(_get_approvals_pending,
804
_set_approvals_pending)
805
del _get_approvals_pending, _set_approvals_pending
808
def _datetime_to_dbus(dt, variant_level=0):
809
"""Convert a UTC datetime.datetime() to a D-Bus type."""
811
return dbus.String("", variant_level = variant_level)
812
return dbus.String(dt.isoformat(),
813
variant_level=variant_level)
816
oldstate = getattr(self, "enabled", False)
817
r = Client.enable(self)
818
if oldstate != self.enabled:
820
self.PropertyChanged(dbus.String("Enabled"),
821
dbus.Boolean(True, variant_level=1))
822
self.PropertyChanged(
823
dbus.String("LastEnabled"),
824
self._datetime_to_dbus(self.last_enabled,
828
def disable(self, quiet = False):
829
oldstate = getattr(self, "enabled", False)
830
r = Client.disable(self, quiet=quiet)
831
if not quiet and oldstate != self.enabled:
833
self.PropertyChanged(dbus.String("Enabled"),
834
dbus.Boolean(False, variant_level=1))
894
transform_fun: Function that takes a value and transforms it
896
dbus_name: D-Bus name of the variable
897
type_func: Function that transform the value before sending it
898
to the D-Bus. Default: no transform
899
variant_level: D-Bus variant level. Default: 1
901
attrname = "_{0}".format(dbus_name)
902
def setter(self, value):
903
if hasattr(self, "dbus_object_path"):
904
if (not hasattr(self, attrname) or
905
type_func(getattr(self, attrname, None))
906
!= type_func(value)):
907
dbus_value = transform_func(type_func(value),
909
self.PropertyChanged(dbus.String(dbus_name),
911
setattr(self, attrname, value)
913
return property(lambda self: getattr(self, attrname), setter)
916
expires = notifychangeproperty(datetime_to_dbus, "Expires")
917
approvals_pending = notifychangeproperty(dbus.Boolean,
920
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
921
last_enabled = notifychangeproperty(datetime_to_dbus,
923
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
924
type_func = lambda checker:
926
last_checked_ok = notifychangeproperty(datetime_to_dbus,
928
last_approval_request = notifychangeproperty(
929
datetime_to_dbus, "LastApprovalRequest")
930
approved_by_default = notifychangeproperty(dbus.Boolean,
932
approval_delay = notifychangeproperty(dbus.UInt16,
935
_timedelta_to_milliseconds)
936
approval_duration = notifychangeproperty(
937
dbus.UInt16, "ApprovalDuration",
938
type_func = _timedelta_to_milliseconds)
939
host = notifychangeproperty(dbus.String, "Host")
940
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
942
_timedelta_to_milliseconds)
943
extended_timeout = notifychangeproperty(
944
dbus.UInt16, "ExtendedTimeout",
945
type_func = _timedelta_to_milliseconds)
946
interval = notifychangeproperty(dbus.UInt16,
949
_timedelta_to_milliseconds)
950
checker_command = notifychangeproperty(dbus.String, "Checker")
952
del notifychangeproperty
837
954
def __del__(self, *args, **kwargs):
865
979
return Client.checker_callback(self, pid, condition, command,
868
def checked_ok(self, *args, **kwargs):
869
Client.checked_ok(self, *args, **kwargs)
871
self.PropertyChanged(
872
dbus.String("LastCheckedOK"),
873
(self._datetime_to_dbus(self.last_checked_ok,
876
def need_approval(self, *args, **kwargs):
877
r = Client.need_approval(self, *args, **kwargs)
879
self.PropertyChanged(
880
dbus.String("LastApprovalRequest"),
881
(self._datetime_to_dbus(self.last_approval_request,
885
982
def start_checker(self, *args, **kwargs):
886
983
old_checker = self.checker
887
984
if self.checker is not None:
1025
1105
def ApprovalDelay_dbus_property(self, value=None):
1026
1106
if value is None: # get
1027
1107
return dbus.UInt64(self.approval_delay_milliseconds())
1028
old_value = self.approval_delay
1029
1108
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1031
if old_value != self.approval_delay:
1032
self.PropertyChanged(dbus.String("ApprovalDelay"),
1033
dbus.UInt64(value, variant_level=1))
1035
1110
# ApprovalDuration - property
1036
1111
@dbus_service_property(_interface, signature="t",
1037
1112
access="readwrite")
1038
1113
def ApprovalDuration_dbus_property(self, value=None):
1039
1114
if value is None: # get
1040
return dbus.UInt64(self._timedelta_to_milliseconds(
1115
return dbus.UInt64(_timedelta_to_milliseconds(
1041
1116
self.approval_duration))
1042
old_value = self.approval_duration
1043
1117
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1045
if old_value != self.approval_duration:
1046
self.PropertyChanged(dbus.String("ApprovalDuration"),
1047
dbus.UInt64(value, variant_level=1))
1049
1119
# Name - property
1050
1120
@dbus_service_property(_interface, signature="s", access="read")
1062
1132
def Host_dbus_property(self, value=None):
1063
1133
if value is None: # get
1064
1134
return dbus.String(self.host)
1065
old_value = self.host
1066
1135
self.host = value
1068
if old_value != self.host:
1069
self.PropertyChanged(dbus.String("Host"),
1070
dbus.String(value, variant_level=1))
1072
1137
# Created - property
1073
1138
@dbus_service_property(_interface, signature="s", access="read")
1074
1139
def Created_dbus_property(self):
1075
return dbus.String(self._datetime_to_dbus(self.created))
1140
return dbus.String(datetime_to_dbus(self.created))
1077
1142
# LastEnabled - property
1078
1143
@dbus_service_property(_interface, signature="s", access="read")
1079
1144
def LastEnabled_dbus_property(self):
1080
return self._datetime_to_dbus(self.last_enabled)
1145
return datetime_to_dbus(self.last_enabled)
1082
1147
# Enabled - property
1083
1148
@dbus_service_property(_interface, signature="b",
1140
1200
self.expires = (datetime.datetime.utcnow()
1141
+ datetime.timedelta(milliseconds = time_to_die))
1201
+ datetime.timedelta(milliseconds =
1142
1203
self.disable_initiator_tag = (gobject.timeout_add
1143
1204
(time_to_die, self.disable))
1145
1206
# ExtendedTimeout - property
1146
1207
@dbus_service_property(_interface, signature="t",
1147
1208
access="readwrite")
1148
1209
def ExtendedTimeout_dbus_property(self, value=None):
1149
1210
if value is None: # get
1150
1211
return dbus.UInt64(self.extended_timeout_milliseconds())
1151
old_value = self.extended_timeout
1152
1212
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1154
if old_value != self.extended_timeout:
1155
self.PropertyChanged(dbus.String("ExtendedTimeout"),
1156
dbus.UInt64(value, variant_level=1))
1158
1214
# Interval - property
1159
1215
@dbus_service_property(_interface, signature="t",
1160
1216
access="readwrite")
1161
1217
def Interval_dbus_property(self, value=None):
1162
1218
if value is None: # get
1163
1219
return dbus.UInt64(self.interval_milliseconds())
1164
old_value = self.interval
1165
1220
self.interval = datetime.timedelta(0, 0, 0, value)
1167
if old_value != self.interval:
1168
self.PropertyChanged(dbus.String("Interval"),
1169
dbus.UInt64(value, variant_level=1))
1170
1221
if getattr(self, "checker_initiator_tag", None) is None:
1172
1223
# Reschedule checker run
1480
1532
This function creates a new pipe in self.pipe
1482
1534
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1484
super(MultiprocessingMixInWithPipe,
1485
self).process_request(request, client_address)
1536
proc = MultiprocessingMixIn.process_request(self, request,
1486
1538
self.child_pipe.close()
1487
self.add_pipe(parent_pipe)
1489
def add_pipe(self, parent_pipe):
1539
self.add_pipe(parent_pipe, proc)
1541
def add_pipe(self, parent_pipe, proc):
1490
1542
"""Dummy function; override as necessary"""
1491
1543
raise NotImplementedError
1493
1546
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1494
1547
socketserver.TCPServer, object):
1495
1548
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1579
1632
def server_activate(self):
1580
1633
if self.enabled:
1581
1634
return socketserver.TCPServer.server_activate(self)
1582
1636
def enable(self):
1583
1637
self.enabled = True
1584
def add_pipe(self, parent_pipe):
1639
def add_pipe(self, parent_pipe, proc):
1585
1640
# Call "handle_ipc" for both data and EOF events
1586
1641
gobject.io_add_watch(parent_pipe.fileno(),
1587
1642
gobject.IO_IN | gobject.IO_HUP,
1588
1643
functools.partial(self.handle_ipc,
1589
parent_pipe = parent_pipe))
1591
1648
def handle_ipc(self, source, condition, parent_pipe=None,
1592
client_object=None):
1649
proc = None, client_object=None):
1593
1650
condition_names = {
1594
1651
gobject.IO_IN: "IN", # There is data to read.
1595
1652
gobject.IO_OUT: "OUT", # Data can be written (without
1625
1683
"dress: %s", fpr, address)
1626
1684
if self.use_dbus:
1627
1685
# Emit D-Bus signal
1628
mandos_dbus_service.ClientNotFound(fpr, address[0])
1686
mandos_dbus_service.ClientNotFound(fpr,
1629
1688
parent_pipe.send(False)
1632
1691
gobject.io_add_watch(parent_pipe.fileno(),
1633
1692
gobject.IO_IN | gobject.IO_HUP,
1634
1693
functools.partial(self.handle_ipc,
1635
parent_pipe = parent_pipe,
1636
client_object = client))
1637
1699
parent_pipe.send(True)
1638
# remove the old hook in favor of the new above hook on same fileno
1700
# remove the old hook in favor of the new above hook on
1640
1703
if command == 'funcall':
1641
1704
funcname = request[1]
1642
1705
args = request[2]
1643
1706
kwargs = request[3]
1645
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1708
parent_pipe.send(('data', getattr(client_object,
1647
1712
if command == 'getattr':
1648
1713
attrname = request[1]
1649
1714
if callable(client_object.__getattribute__(attrname)):
1650
1715
parent_pipe.send(('function',))
1652
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1717
parent_pipe.send(('data', client_object
1718
.__getattribute__(attrname)))
1654
1720
if command == 'setattr':
1655
1721
attrname = request[1]
1656
1722
value = request[2]
1657
1723
setattr(client_object, attrname, value)