316
308
"host", "interval", "last_checked_ok",
317
309
"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))
319
318
def timeout_milliseconds(self):
320
319
"Return the 'timeout' attribute in milliseconds"
321
return _timedelta_to_milliseconds(self.timeout)
320
return self._timedelta_to_milliseconds(self.timeout)
323
322
def extended_timeout_milliseconds(self):
324
323
"Return the 'extended_timeout' attribute in milliseconds"
325
return _timedelta_to_milliseconds(self.extended_timeout)
324
return self._timedelta_to_milliseconds(self.extended_timeout)
327
326
def interval_milliseconds(self):
328
327
"Return the 'interval' attribute in milliseconds"
329
return _timedelta_to_milliseconds(self.interval)
328
return self._timedelta_to_milliseconds(self.interval)
331
330
def approval_delay_milliseconds(self):
332
return _timedelta_to_milliseconds(self.approval_delay)
331
return self._timedelta_to_milliseconds(self.approval_delay)
334
333
def __init__(self, name = None, disable_hook=None, config=None):
335
334
"""Note: the 'checker' key in 'config' sets the
631
626
def _get_all_dbus_properties(self):
632
627
"""Returns a generator of (name, attribute) pairs
634
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
635
for cls in self.__class__.__mro__
629
return ((prop._dbus_name, prop)
636
630
for name, prop in
637
inspect.getmembers(cls, self._is_dbus_property))
631
inspect.getmembers(self, self._is_dbus_property))
639
633
def _get_dbus_property(self, interface_name, property_name):
640
634
"""Returns a bound method if one exists which is a D-Bus
641
635
property with the specified name and 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)
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)):
650
647
# No such property
651
648
raise DBusPropertyNotFound(self.dbus_object_path + ":"
652
649
+ 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)
861
754
class ClientDBus(Client, DBusObjectWithProperties):
862
755
"""A Client class using D-Bus
884
777
("/clients/" + client_object_name))
885
778
DBusObjectWithProperties.__init__(self, self.bus,
886
779
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)
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
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"),
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
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))
954
837
def __del__(self, *args, **kwargs):
979
865
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,
982
885
def start_checker(self, *args, **kwargs):
983
886
old_checker = self.checker
984
887
if self.checker is not None:
1105
1025
def ApprovalDelay_dbus_property(self, value=None):
1106
1026
if value is None: # get
1107
1027
return dbus.UInt64(self.approval_delay_milliseconds())
1028
old_value = self.approval_delay
1108
1029
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))
1110
1035
# ApprovalDuration - property
1111
1036
@dbus_service_property(_interface, signature="t",
1112
1037
access="readwrite")
1113
1038
def ApprovalDuration_dbus_property(self, value=None):
1114
1039
if value is None: # get
1115
return dbus.UInt64(_timedelta_to_milliseconds(
1040
return dbus.UInt64(self._timedelta_to_milliseconds(
1116
1041
self.approval_duration))
1042
old_value = self.approval_duration
1117
1043
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))
1119
1049
# Name - property
1120
1050
@dbus_service_property(_interface, signature="s", access="read")
1132
1062
def Host_dbus_property(self, value=None):
1133
1063
if value is None: # get
1134
1064
return dbus.String(self.host)
1065
old_value = self.host
1135
1066
self.host = value
1068
if old_value != self.host:
1069
self.PropertyChanged(dbus.String("Host"),
1070
dbus.String(value, variant_level=1))
1137
1072
# Created - property
1138
1073
@dbus_service_property(_interface, signature="s", access="read")
1139
1074
def Created_dbus_property(self):
1140
return dbus.String(datetime_to_dbus(self.created))
1075
return dbus.String(self._datetime_to_dbus(self.created))
1142
1077
# LastEnabled - property
1143
1078
@dbus_service_property(_interface, signature="s", access="read")
1144
1079
def LastEnabled_dbus_property(self):
1145
return datetime_to_dbus(self.last_enabled)
1080
return self._datetime_to_dbus(self.last_enabled)
1147
1082
# Enabled - property
1148
1083
@dbus_service_property(_interface, signature="b",
1200
1140
self.expires = (datetime.datetime.utcnow()
1201
+ datetime.timedelta(milliseconds =
1141
+ datetime.timedelta(milliseconds = time_to_die))
1203
1142
self.disable_initiator_tag = (gobject.timeout_add
1204
1143
(time_to_die, self.disable))
1206
1145
# ExtendedTimeout - property
1207
1146
@dbus_service_property(_interface, signature="t",
1208
1147
access="readwrite")
1209
1148
def ExtendedTimeout_dbus_property(self, value=None):
1210
1149
if value is None: # get
1211
1150
return dbus.UInt64(self.extended_timeout_milliseconds())
1151
old_value = self.extended_timeout
1212
1152
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))
1214
1158
# Interval - property
1215
1159
@dbus_service_property(_interface, signature="t",
1216
1160
access="readwrite")
1217
1161
def Interval_dbus_property(self, value=None):
1218
1162
if value is None: # get
1219
1163
return dbus.UInt64(self.interval_milliseconds())
1164
old_value = self.interval
1220
1165
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))
1221
1170
if getattr(self, "checker_initiator_tag", None) is None:
1223
1172
# Reschedule checker run
1678
1625
"dress: %s", fpr, address)
1679
1626
if self.use_dbus:
1680
1627
# Emit D-Bus signal
1681
mandos_dbus_service.ClientNotFound(fpr,
1628
mandos_dbus_service.ClientNotFound(fpr, address[0])
1683
1629
parent_pipe.send(False)
1686
1632
gobject.io_add_watch(parent_pipe.fileno(),
1687
1633
gobject.IO_IN | gobject.IO_HUP,
1688
1634
functools.partial(self.handle_ipc,
1635
parent_pipe = parent_pipe,
1636
client_object = client))
1693
1637
parent_pipe.send(True)
1694
# remove the old hook in favor of the new above hook on
1638
# remove the old hook in favor of the new above hook on same fileno
1697
1640
if command == 'funcall':
1698
1641
funcname = request[1]
1699
1642
args = request[2]
1700
1643
kwargs = request[3]
1702
parent_pipe.send(('data', getattr(client_object,
1645
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1706
1647
if command == 'getattr':
1707
1648
attrname = request[1]
1708
1649
if callable(client_object.__getattribute__(attrname)):
1709
1650
parent_pipe.send(('function',))
1711
parent_pipe.send(('data', client_object
1712
.__getattribute__(attrname)))
1652
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1714
1654
if command == 'setattr':
1715
1655
attrname = request[1]
1716
1656
value = request[2]
1717
1657
setattr(client_object, attrname, value)