34
34
from __future__ import (division, absolute_import, print_function,
37
from future_builtins import *
38
from future_builtins import *
40
43
import SocketServer as socketserver
119
121
return interface_index
124
def copy_function(func):
125
"""Make a copy of a function"""
126
if sys.version_info.major == 2:
127
return types.FunctionType(func.func_code,
133
return types.FunctionType(func.__code__,
122
140
def initlogger(debug, level=logging.WARNING):
123
141
"""init logger and add loglevel"""
156
174
output = subprocess.check_output(["gpgconf"])
157
175
for line in output.splitlines():
158
name, text, path = line.split(":")
176
name, text, path = line.split(b":")
159
177
if name == "gpg":
238
256
raise PGPError(err)
239
257
return decrypted_plaintext
259
# Pretend that we have an Avahi module
261
"""This isn't so much a class as it is a module-like namespace.
262
It is instantiated once, and simulates having an Avahi module."""
263
IF_UNSPEC = -1 # avahi-common/address.h
264
PROTO_UNSPEC = -1 # avahi-common/address.h
265
PROTO_INET = 0 # avahi-common/address.h
266
PROTO_INET6 = 1 # avahi-common/address.h
267
DBUS_NAME = "org.freedesktop.Avahi"
268
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
269
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
270
DBUS_PATH_SERVER = "/"
271
def string_array_to_txt_array(self, t):
272
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
273
for s in t), signature="ay")
274
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
275
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
276
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
277
SERVER_INVALID = 0 # avahi-common/defs.h
278
SERVER_REGISTERING = 1 # avahi-common/defs.h
279
SERVER_RUNNING = 2 # avahi-common/defs.h
280
SERVER_COLLISION = 3 # avahi-common/defs.h
281
SERVER_FAILURE = 4 # avahi-common/defs.h
242
284
class AvahiError(Exception):
243
285
def __init__(self, value, *args, **kwargs):
448
490
_library = ctypes.cdll.LoadLibrary(
449
491
ctypes.util.find_library("gnutls"))
450
_need_version = "3.3.0"
492
_need_version = b"3.3.0"
451
493
def __init__(self):
452
494
# Need to use class name "GnuTLS" here, since this method is
453
495
# called before the assignment to the "gnutls" global variable
487
529
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
488
530
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
489
531
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
490
credentials_type_t = ctypes.c_int #
532
credentials_type_t = ctypes.c_int
491
533
transport_ptr_t = ctypes.c_void_p
492
534
close_request_t = ctypes.c_int
715
757
checker: subprocess.Popen(); a running checker process used
716
758
to see if the client lives.
717
759
'None' if no process is running.
718
checker_callback_tag: a gobject event source tag, or None
760
checker_callback_tag: a GObject event source tag, or None
719
761
checker_command: string; External command which is run to check
720
762
if client lives. %() expansions are done at
721
763
runtime with vars(self) as dict, so that for
722
764
instance %(name)s can be used in the command.
723
checker_initiator_tag: a gobject event source tag, or None
765
checker_initiator_tag: a GObject event source tag, or None
724
766
created: datetime.datetime(); (UTC) object creation
725
767
client_structure: Object describing what attributes a client has
726
768
and is used for storing the client at exit
727
769
current_checker_command: string; current running checker_command
728
disable_initiator_tag: a gobject event source tag, or None
770
disable_initiator_tag: a GObject event source tag, or None
730
772
fingerprint: string (40 or 32 hexadecimal digits); used to
731
773
uniquely identify the client
794
836
client["fingerprint"] = (section["fingerprint"].upper()
795
837
.replace(" ", ""))
796
838
if "secret" in section:
797
client["secret"] = section["secret"].decode("base64")
839
client["secret"] = codecs.decode(section["secret"]
798
842
elif "secfile" in section:
799
843
with open(os.path.expanduser(os.path.expandvars
800
844
(section["secfile"])),
853
897
self.changedstate = multiprocessing_manager.Condition(
854
898
multiprocessing_manager.Lock())
855
899
self.client_structure = [attr
856
for attr in self.__dict__.iterkeys()
900
for attr in self.__dict__.keys()
857
901
if not attr.startswith("_")]
858
902
self.client_structure.append("client_structure")
886
930
logger.info("Disabling client %s", self.name)
887
931
if getattr(self, "disable_initiator_tag", None) is not None:
888
gobject.source_remove(self.disable_initiator_tag)
932
GObject.source_remove(self.disable_initiator_tag)
889
933
self.disable_initiator_tag = None
890
934
self.expires = None
891
935
if getattr(self, "checker_initiator_tag", None) is not None:
892
gobject.source_remove(self.checker_initiator_tag)
936
GObject.source_remove(self.checker_initiator_tag)
893
937
self.checker_initiator_tag = None
894
938
self.stop_checker()
895
939
self.enabled = False
897
941
self.send_changedstate()
898
# Do not run this again if called by a gobject.timeout_add
942
# Do not run this again if called by a GObject.timeout_add
901
945
def __del__(self):
905
949
# Schedule a new checker to be started an 'interval' from now,
906
950
# and every interval from then on.
907
951
if self.checker_initiator_tag is not None:
908
gobject.source_remove(self.checker_initiator_tag)
909
self.checker_initiator_tag = gobject.timeout_add(
952
GObject.source_remove(self.checker_initiator_tag)
953
self.checker_initiator_tag = GObject.timeout_add(
910
954
int(self.interval.total_seconds() * 1000),
911
955
self.start_checker)
912
956
# Schedule a disable() when 'timeout' has passed
913
957
if self.disable_initiator_tag is not None:
914
gobject.source_remove(self.disable_initiator_tag)
915
self.disable_initiator_tag = gobject.timeout_add(
958
GObject.source_remove(self.disable_initiator_tag)
959
self.disable_initiator_tag = GObject.timeout_add(
916
960
int(self.timeout.total_seconds() * 1000), self.disable)
917
961
# Also start a new checker *right now*.
918
962
self.start_checker()
954
998
if timeout is None:
955
999
timeout = self.timeout
956
1000
if self.disable_initiator_tag is not None:
957
gobject.source_remove(self.disable_initiator_tag)
1001
GObject.source_remove(self.disable_initiator_tag)
958
1002
self.disable_initiator_tag = None
959
1003
if getattr(self, "enabled", False):
960
self.disable_initiator_tag = gobject.timeout_add(
1004
self.disable_initiator_tag = GObject.timeout_add(
961
1005
int(timeout.total_seconds() * 1000), self.disable)
962
1006
self.expires = datetime.datetime.utcnow() + timeout
1018
1062
args = (pipe[1], subprocess.call, command),
1019
1063
kwargs = popen_args)
1020
1064
self.checker.start()
1021
self.checker_callback_tag = gobject.io_add_watch(
1022
pipe[0].fileno(), gobject.IO_IN,
1065
self.checker_callback_tag = GObject.io_add_watch(
1066
pipe[0].fileno(), GObject.IO_IN,
1023
1067
self.checker_callback, pipe[0], command)
1024
# Re-run this periodically if run by gobject.timeout_add
1068
# Re-run this periodically if run by GObject.timeout_add
1027
1071
def stop_checker(self):
1028
1072
"""Force the checker process, if any, to stop."""
1029
1073
if self.checker_callback_tag:
1030
gobject.source_remove(self.checker_callback_tag)
1074
GObject.source_remove(self.checker_callback_tag)
1031
1075
self.checker_callback_tag = None
1032
1076
if getattr(self, "checker", None) is None:
1507
1551
interface_names.add(alt_interface)
1508
1552
# Is this a D-Bus signal?
1509
1553
if getattr(attribute, "_dbus_is_signal", False):
1554
# Extract the original non-method undecorated
1555
# function by black magic
1510
1556
if sys.version_info.major == 2:
1511
# Extract the original non-method undecorated
1512
# function by black magic
1513
1557
nonmethod_func = (dict(
1514
1558
zip(attribute.func_code.co_freevars,
1515
1559
attribute.__closure__))
1516
1560
["func"].cell_contents)
1518
nonmethod_func = attribute
1562
nonmethod_func = (dict(
1563
zip(attribute.__code__.co_freevars,
1564
attribute.__closure__))
1565
["func"].cell_contents)
1519
1566
# Create a new, but exactly alike, function
1520
1567
# object, and decorate it to be a new D-Bus signal
1521
1568
# with the alternate D-Bus interface name
1522
if sys.version_info.major == 2:
1523
new_function = types.FunctionType(
1524
nonmethod_func.func_code,
1525
nonmethod_func.func_globals,
1526
nonmethod_func.func_name,
1527
nonmethod_func.func_defaults,
1528
nonmethod_func.func_closure)
1530
new_function = types.FunctionType(
1531
nonmethod_func.__code__,
1532
nonmethod_func.__globals__,
1533
nonmethod_func.__name__,
1534
nonmethod_func.__defaults__,
1535
nonmethod_func.__closure__)
1569
new_function = copy_function(nonmethod_func)
1536
1570
new_function = (dbus.service.signal(
1538
1572
attribute._dbus_signature)(new_function))
1578
1612
attribute._dbus_in_signature,
1579
1613
attribute._dbus_out_signature)
1580
(types.FunctionType(attribute.func_code,
1581
attribute.func_globals,
1582
attribute.func_name,
1583
attribute.func_defaults,
1584
attribute.func_closure)))
1614
(copy_function(attribute)))
1585
1615
# Copy annotations, if any
1587
1617
attr[attrname]._dbus_annotations = dict(
1599
1629
attribute._dbus_access,
1600
1630
attribute._dbus_get_args_options
1601
1631
["byte_arrays"])
1602
(types.FunctionType(
1603
attribute.func_code,
1604
attribute.func_globals,
1605
attribute.func_name,
1606
attribute.func_defaults,
1607
attribute.func_closure)))
1632
(copy_function(attribute)))
1608
1633
# Copy annotations, if any
1610
1635
attr[attrname]._dbus_annotations = dict(
1619
1644
# to the class.
1620
1645
attr[attrname] = (
1621
1646
dbus_interface_annotations(alt_interface)
1622
(types.FunctionType(attribute.func_code,
1623
attribute.func_globals,
1624
attribute.func_name,
1625
attribute.func_defaults,
1626
attribute.func_closure)))
1647
(copy_function(attribute)))
1628
1649
# Deprecate all alternate interfaces
1629
1650
iname="_AlternateDBusNames_interface_annotation{}"
1642
1663
if interface_names:
1643
1664
# Replace the class with a new subclass of it with
1644
1665
# methods, signals, etc. as created above.
1645
cls = type(b"{}Alternate".format(cls.__name__),
1666
if sys.version_info.major == 2:
1667
cls = type(b"{}Alternate".format(cls.__name__),
1670
cls = type("{}Alternate".format(cls.__name__),
1808
1833
def approve(self, value=True):
1809
1834
self.approved = value
1810
gobject.timeout_add(int(self.approval_duration.total_seconds()
1835
GObject.timeout_add(int(self.approval_duration.total_seconds()
1811
1836
* 1000), self._reset_approved)
1812
1837
self.send_changedstate()
2024
2049
if (getattr(self, "disable_initiator_tag", None)
2027
gobject.source_remove(self.disable_initiator_tag)
2028
self.disable_initiator_tag = gobject.timeout_add(
2052
GObject.source_remove(self.disable_initiator_tag)
2053
self.disable_initiator_tag = GObject.timeout_add(
2029
2054
int((self.expires - now).total_seconds() * 1000),
2052
2077
if self.enabled:
2053
2078
# Reschedule checker run
2054
gobject.source_remove(self.checker_initiator_tag)
2055
self.checker_initiator_tag = gobject.timeout_add(
2079
GObject.source_remove(self.checker_initiator_tag)
2080
self.checker_initiator_tag = GObject.timeout_add(
2056
2081
value, self.start_checker)
2057
2082
self.start_checker() # Start one now, too
2462
2487
gnutls_priority GnuTLS priority string
2463
2488
use_dbus: Boolean; to emit D-Bus signals or not
2465
Assumes a gobject.MainLoop event loop.
2490
Assumes a GObject.MainLoop event loop.
2468
2493
def __init__(self, server_address, RequestHandlerClass,
2494
2519
def add_pipe(self, parent_pipe, proc):
2495
2520
# Call "handle_ipc" for both data and EOF events
2496
gobject.io_add_watch(
2521
GObject.io_add_watch(
2497
2522
parent_pipe.fileno(),
2498
gobject.IO_IN | gobject.IO_HUP,
2523
GObject.IO_IN | GObject.IO_HUP,
2499
2524
functools.partial(self.handle_ipc,
2500
2525
parent_pipe = parent_pipe,
2506
2531
client_object=None):
2507
2532
# error, or the other end of multiprocessing.Pipe has closed
2508
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2533
if condition & (GObject.IO_ERR | GObject.IO_HUP):
2509
2534
# Wait for other process to exit
2532
2557
parent_pipe.send(False)
2535
gobject.io_add_watch(
2560
GObject.io_add_watch(
2536
2561
parent_pipe.fileno(),
2537
gobject.IO_IN | gobject.IO_HUP,
2562
GObject.IO_IN | GObject.IO_HUP,
2538
2563
functools.partial(self.handle_ipc,
2539
2564
parent_pipe = parent_pipe,
2922
2947
logger.error("Could not open file %r", pidfilename,
2925
for name in ("_mandos", "mandos", "nobody"):
2950
for name, group in (("_mandos", "_mandos"),
2951
("mandos", "mandos"),
2952
("nobody", "nogroup")):
2927
2954
uid = pwd.getpwnam(name).pw_uid
2928
gid = pwd.getpwnam(name).pw_gid
2955
gid = pwd.getpwnam(group).pw_gid
2930
2957
except KeyError:
2966
logger.debug("Did setuid/setgid to {}:{}".format(uid,
2938
2968
except OSError as error:
2969
logger.warning("Failed to setuid/setgid to {}:{}: {}"
2970
.format(uid, gid, os.strerror(error.errno)))
2939
2971
if error.errno != errno.EPERM:
2963
2995
# Close all input and output, do double fork, etc.
2966
# multiprocessing will use threads, so before we use gobject we
2967
# need to inform gobject that threads will be used.
2968
gobject.threads_init()
2998
# multiprocessing will use threads, so before we use GObject we
2999
# need to inform GObject that threads will be used.
3000
GObject.threads_init()
2970
3002
global main_loop
2971
3003
# From the Avahi example code
2972
3004
DBusGMainLoop(set_as_default=True)
2973
main_loop = gobject.MainLoop()
3005
main_loop = GObject.MainLoop()
2974
3006
bus = dbus.SystemBus()
2975
3007
# End of Avahi example code
3020
3052
if server_settings["restore"]:
3022
3054
with open(stored_state_path, "rb") as stored_state:
3023
clients_data, old_client_settings = pickle.load(
3055
if sys.version_info.major == 2:
3056
clients_data, old_client_settings = pickle.load(
3059
bytes_clients_data, bytes_old_client_settings = (
3060
pickle.load(stored_state, encoding = "bytes"))
3061
### Fix bytes to strings
3064
clients_data = { (key.decode("utf-8")
3065
if isinstance(key, bytes)
3068
bytes_clients_data.items() }
3069
del bytes_clients_data
3070
for key in clients_data:
3071
value = { (k.decode("utf-8")
3072
if isinstance(k, bytes) else k): v
3074
clients_data[key].items() }
3075
clients_data[key] = value
3077
value["client_structure"] = [
3079
if isinstance(s, bytes)
3081
value["client_structure"] ]
3083
for k in ("name", "host"):
3084
if isinstance(value[k], bytes):
3085
value[k] = value[k].decode("utf-8")
3086
## old_client_settings
3088
old_client_settings = {
3089
(key.decode("utf-8")
3090
if isinstance(key, bytes)
3093
bytes_old_client_settings.items() }
3094
del bytes_old_client_settings
3096
for value in old_client_settings.values():
3097
if isinstance(value["host"], bytes):
3098
value["host"] = (value["host"]
3025
3100
os.remove(stored_state_path)
3026
3101
except IOError as e:
3027
3102
if e.errno == errno.ENOENT:
3177
3252
return dbus.Dictionary(
3178
3253
{ c.dbus_object_path: c.GetAll(
3179
3254
"se.recompile.Mandos.Client")
3180
for c in tcp_server.clients.itervalues() },
3255
for c in tcp_server.clients.values() },
3181
3256
signature="oa{sv}")
3183
3258
@dbus.service.method(_interface, in_signature="o")
3184
3259
def RemoveClient(self, object_path):
3186
for c in tcp_server.clients.itervalues():
3261
for c in tcp_server.clients.values():
3187
3262
if c.dbus_object_path == object_path:
3188
3263
del tcp_server.clients[c.name]
3189
3264
c.remove_from_connection()
3249
3324
# removed/edited, old secret will thus be unrecovable.
3251
3326
with PGPEngine() as pgp:
3252
for client in tcp_server.clients.itervalues():
3327
for client in tcp_server.clients.values():
3253
3328
key = client_settings[client.name]["secret"]
3254
3329
client.encrypted_secret = pgp.encrypt(client.secret,
3279
3354
prefix='clients-',
3280
3355
dir=os.path.dirname(stored_state_path),
3281
3356
delete=False) as stored_state:
3282
pickle.dump((clients, client_settings), stored_state)
3357
pickle.dump((clients, client_settings), stored_state,
3283
3359
tempname = stored_state.name
3284
3360
os.rename(tempname, stored_state_path)
3285
3361
except (IOError, OSError) as e:
3346
3422
# End of Avahi example code
3348
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
3424
GObject.io_add_watch(tcp_server.fileno(), GObject.IO_IN,
3349
3425
lambda *args, **kwargs:
3350
3426
(tcp_server.handle_request
3351
3427
(*args[2:], **kwargs) or True))