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
633
626
def _get_all_dbus_properties(self):
634
627
"""Returns a generator of (name, attribute) pairs
636
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
637
for cls in self.__class__.__mro__
629
return ((prop._dbus_name, prop)
638
630
for name, prop in
639
inspect.getmembers(cls, self._is_dbus_property))
631
inspect.getmembers(self, self._is_dbus_property))
641
633
def _get_dbus_property(self, interface_name, property_name):
642
634
"""Returns a bound method if one exists which is a D-Bus
643
635
property with the specified name and interface.
645
for cls in self.__class__.__mro__:
646
for name, value in (inspect.getmembers
647
(cls, self._is_dbus_property)):
648
if (value._dbus_name == property_name
649
and value._dbus_interface == interface_name):
650
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)):
652
647
# No such property
653
648
raise DBusPropertyNotFound(self.dbus_object_path + ":"
654
649
+ interface_name + "."
759
def datetime_to_dbus (dt, variant_level=0):
760
"""Convert a UTC datetime.datetime() to a D-Bus type."""
762
return dbus.String("", variant_level = variant_level)
763
return dbus.String(dt.isoformat(),
764
variant_level=variant_level)
766
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
768
"""Applied to an empty subclass of a D-Bus object, this metaclass
769
will add additional D-Bus attributes matching a certain pattern.
771
def __new__(mcs, name, bases, attr):
772
# Go through all the base classes which could have D-Bus
773
# methods, signals, or properties in them
774
for base in (b for b in bases
775
if issubclass(b, dbus.service.Object)):
776
# Go though all attributes of the base class
777
for attrname, attribute in inspect.getmembers(base):
778
# Ignore non-D-Bus attributes, and D-Bus attributes
779
# with the wrong interface name
780
if (not hasattr(attribute, "_dbus_interface")
781
or not attribute._dbus_interface
782
.startswith("se.recompile.Mandos")):
784
# Create an alternate D-Bus interface name based on
786
alt_interface = (attribute._dbus_interface
787
.replace("se.recompile.Mandos",
788
"se.bsnet.fukt.Mandos"))
789
# Is this a D-Bus signal?
790
if getattr(attribute, "_dbus_is_signal", False):
791
# Extract the original non-method function by
793
nonmethod_func = (dict(
794
zip(attribute.func_code.co_freevars,
795
attribute.__closure__))["func"]
797
# Create a new, but exactly alike, function
798
# object, and decorate it to be a new D-Bus signal
799
# with the alternate D-Bus interface name
800
new_function = (dbus.service.signal
802
attribute._dbus_signature)
804
nonmethod_func.func_code,
805
nonmethod_func.func_globals,
806
nonmethod_func.func_name,
807
nonmethod_func.func_defaults,
808
nonmethod_func.func_closure)))
809
# Define a creator of a function to call both the
810
# old and new functions, so both the old and new
811
# signals gets sent when the function is called
812
def fixscope(func1, func2):
813
"""This function is a scope container to pass
814
func1 and func2 to the "call_both" function
815
outside of its arguments"""
816
def call_both(*args, **kwargs):
817
"""This function will emit two D-Bus
818
signals by calling func1 and func2"""
819
func1(*args, **kwargs)
820
func2(*args, **kwargs)
822
# Create the "call_both" function and add it to
824
attr[attrname] = fixscope(attribute,
826
# Is this a D-Bus method?
827
elif getattr(attribute, "_dbus_is_method", False):
828
# Create a new, but exactly alike, function
829
# object. Decorate it to be a new D-Bus method
830
# with the alternate D-Bus interface name. Add it
832
attr[attrname] = (dbus.service.method
834
attribute._dbus_in_signature,
835
attribute._dbus_out_signature)
837
(attribute.func_code,
838
attribute.func_globals,
840
attribute.func_defaults,
841
attribute.func_closure)))
842
# Is this a D-Bus property?
843
elif getattr(attribute, "_dbus_is_property", False):
844
# Create a new, but exactly alike, function
845
# object, and decorate it to be a new D-Bus
846
# property with the alternate D-Bus interface
847
# name. Add it to the class.
848
attr[attrname] = (dbus_service_property
850
attribute._dbus_signature,
851
attribute._dbus_access,
853
._dbus_get_args_options
856
(attribute.func_code,
857
attribute.func_globals,
859
attribute.func_defaults,
860
attribute.func_closure)))
861
return type.__new__(mcs, name, bases, attr)
863
754
class ClientDBus(Client, DBusObjectWithProperties):
864
755
"""A Client class using D-Bus
886
777
("/clients/" + client_object_name))
887
778
DBusObjectWithProperties.__init__(self, self.bus,
888
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)
890
def notifychangeproperty(transform_func,
891
dbus_name, type_func=lambda x: x,
893
""" 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"),
896
transform_fun: Function that takes a value and a variant_level
897
and transforms it to a D-Bus type.
898
dbus_name: D-Bus name of the variable
899
type_func: Function that transform the value before sending it
900
to the D-Bus. Default: no transform
901
variant_level: D-Bus variant level. Default: 1
903
attrname = "_{0}".format(dbus_name)
904
def setter(self, value):
905
if hasattr(self, "dbus_object_path"):
906
if (not hasattr(self, attrname) or
907
type_func(getattr(self, attrname, None))
908
!= type_func(value)):
909
dbus_value = transform_func(type_func(value),
912
self.PropertyChanged(dbus.String(dbus_name),
914
setattr(self, attrname, value)
916
return property(lambda self: getattr(self, attrname), setter)
919
expires = notifychangeproperty(datetime_to_dbus, "Expires")
920
approvals_pending = notifychangeproperty(dbus.Boolean,
923
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
924
last_enabled = notifychangeproperty(datetime_to_dbus,
926
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
927
type_func = lambda checker:
929
last_checked_ok = notifychangeproperty(datetime_to_dbus,
931
last_approval_request = notifychangeproperty(
932
datetime_to_dbus, "LastApprovalRequest")
933
approved_by_default = notifychangeproperty(dbus.Boolean,
935
approval_delay = notifychangeproperty(dbus.UInt16,
938
_timedelta_to_milliseconds)
939
approval_duration = notifychangeproperty(
940
dbus.UInt16, "ApprovalDuration",
941
type_func = _timedelta_to_milliseconds)
942
host = notifychangeproperty(dbus.String, "Host")
943
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
945
_timedelta_to_milliseconds)
946
extended_timeout = notifychangeproperty(
947
dbus.UInt16, "ExtendedTimeout",
948
type_func = _timedelta_to_milliseconds)
949
interval = notifychangeproperty(dbus.UInt16,
952
_timedelta_to_milliseconds)
953
checker_command = notifychangeproperty(dbus.String, "Checker")
955
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))
957
837
def __del__(self, *args, **kwargs):
982
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,
985
885
def start_checker(self, *args, **kwargs):
986
886
old_checker = self.checker
987
887
if self.checker is not None:
1108
1025
def ApprovalDelay_dbus_property(self, value=None):
1109
1026
if value is None: # get
1110
1027
return dbus.UInt64(self.approval_delay_milliseconds())
1028
old_value = self.approval_delay
1111
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))
1113
1035
# ApprovalDuration - property
1114
1036
@dbus_service_property(_interface, signature="t",
1115
1037
access="readwrite")
1116
1038
def ApprovalDuration_dbus_property(self, value=None):
1117
1039
if value is None: # get
1118
return dbus.UInt64(_timedelta_to_milliseconds(
1040
return dbus.UInt64(self._timedelta_to_milliseconds(
1119
1041
self.approval_duration))
1042
old_value = self.approval_duration
1120
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))
1122
1049
# Name - property
1123
1050
@dbus_service_property(_interface, signature="s", access="read")
1135
1062
def Host_dbus_property(self, value=None):
1136
1063
if value is None: # get
1137
1064
return dbus.String(self.host)
1065
old_value = self.host
1138
1066
self.host = value
1068
if old_value != self.host:
1069
self.PropertyChanged(dbus.String("Host"),
1070
dbus.String(value, variant_level=1))
1140
1072
# Created - property
1141
1073
@dbus_service_property(_interface, signature="s", access="read")
1142
1074
def Created_dbus_property(self):
1143
return dbus.String(datetime_to_dbus(self.created))
1075
return dbus.String(self._datetime_to_dbus(self.created))
1145
1077
# LastEnabled - property
1146
1078
@dbus_service_property(_interface, signature="s", access="read")
1147
1079
def LastEnabled_dbus_property(self):
1148
return datetime_to_dbus(self.last_enabled)
1080
return self._datetime_to_dbus(self.last_enabled)
1150
1082
# Enabled - property
1151
1083
@dbus_service_property(_interface, signature="b",
1183
1115
def Timeout_dbus_property(self, value=None):
1184
1116
if value is None: # get
1185
1117
return dbus.UInt64(self.timeout_milliseconds())
1118
old_value = self.timeout
1186
1119
self.timeout = datetime.timedelta(0, 0, 0, value)
1121
if old_value != self.timeout:
1122
self.PropertyChanged(dbus.String("Timeout"),
1123
dbus.UInt64(value, variant_level=1))
1187
1124
if getattr(self, "disable_initiator_tag", None) is None:
1189
1126
# Reschedule timeout
1190
1127
gobject.source_remove(self.disable_initiator_tag)
1191
1128
self.disable_initiator_tag = None
1192
1129
self.expires = None
1193
time_to_die = _timedelta_to_milliseconds((self
1130
time_to_die = (self.
1131
_timedelta_to_milliseconds((self
1198
1136
if time_to_die <= 0:
1199
1137
# The timeout has passed
1202
1140
self.expires = (datetime.datetime.utcnow()
1203
+ datetime.timedelta(milliseconds =
1141
+ datetime.timedelta(milliseconds = time_to_die))
1205
1142
self.disable_initiator_tag = (gobject.timeout_add
1206
1143
(time_to_die, self.disable))
1208
1145
# ExtendedTimeout - property
1209
1146
@dbus_service_property(_interface, signature="t",
1210
1147
access="readwrite")
1211
1148
def ExtendedTimeout_dbus_property(self, value=None):
1212
1149
if value is None: # get
1213
1150
return dbus.UInt64(self.extended_timeout_milliseconds())
1151
old_value = self.extended_timeout
1214
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))
1216
1158
# Interval - property
1217
1159
@dbus_service_property(_interface, signature="t",
1218
1160
access="readwrite")
1219
1161
def Interval_dbus_property(self, value=None):
1220
1162
if value is None: # get
1221
1163
return dbus.UInt64(self.interval_milliseconds())
1164
old_value = self.interval
1222
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))
1223
1170
if getattr(self, "checker_initiator_tag", None) is None:
1225
1172
# Reschedule checker run
1534
1480
This function creates a new pipe in self.pipe
1536
1482
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1538
proc = MultiprocessingMixIn.process_request(self, request,
1484
super(MultiprocessingMixInWithPipe,
1485
self).process_request(request, client_address)
1540
1486
self.child_pipe.close()
1541
self.add_pipe(parent_pipe, proc)
1543
def add_pipe(self, parent_pipe, proc):
1487
self.add_pipe(parent_pipe)
1489
def add_pipe(self, parent_pipe):
1544
1490
"""Dummy function; override as necessary"""
1545
1491
raise NotImplementedError
1548
1493
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1549
1494
socketserver.TCPServer, object):
1550
1495
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1634
1579
def server_activate(self):
1635
1580
if self.enabled:
1636
1581
return socketserver.TCPServer.server_activate(self)
1638
1582
def enable(self):
1639
1583
self.enabled = True
1641
def add_pipe(self, parent_pipe, proc):
1584
def add_pipe(self, parent_pipe):
1642
1585
# Call "handle_ipc" for both data and EOF events
1643
1586
gobject.io_add_watch(parent_pipe.fileno(),
1644
1587
gobject.IO_IN | gobject.IO_HUP,
1645
1588
functools.partial(self.handle_ipc,
1589
parent_pipe = parent_pipe))
1650
1591
def handle_ipc(self, source, condition, parent_pipe=None,
1651
proc = None, client_object=None):
1592
client_object=None):
1652
1593
condition_names = {
1653
1594
gobject.IO_IN: "IN", # There is data to read.
1654
1595
gobject.IO_OUT: "OUT", # Data can be written (without
1686
1625
"dress: %s", fpr, address)
1687
1626
if self.use_dbus:
1688
1627
# Emit D-Bus signal
1689
mandos_dbus_service.ClientNotFound(fpr,
1628
mandos_dbus_service.ClientNotFound(fpr, address[0])
1691
1629
parent_pipe.send(False)
1694
1632
gobject.io_add_watch(parent_pipe.fileno(),
1695
1633
gobject.IO_IN | gobject.IO_HUP,
1696
1634
functools.partial(self.handle_ipc,
1635
parent_pipe = parent_pipe,
1636
client_object = client))
1702
1637
parent_pipe.send(True)
1703
# 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
1706
1640
if command == 'funcall':
1707
1641
funcname = request[1]
1708
1642
args = request[2]
1709
1643
kwargs = request[3]
1711
parent_pipe.send(('data', getattr(client_object,
1645
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1715
1647
if command == 'getattr':
1716
1648
attrname = request[1]
1717
1649
if callable(client_object.__getattribute__(attrname)):
1718
1650
parent_pipe.send(('function',))
1720
parent_pipe.send(('data', client_object
1721
.__getattribute__(attrname)))
1652
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1723
1654
if command == 'setattr':
1724
1655
attrname = request[1]
1725
1656
value = request[2]
1726
1657
setattr(client_object, attrname, value)