/mandos/trunk

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/trunk
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
#!/usr/bin/python
# -*- mode: python; coding: utf-8; after-save-hook: (lambda () (let ((command (if (and (boundp 'tramp-file-name-structure) (string-match (car tramp-file-name-structure) (buffer-file-name))) (tramp-file-name-localname (tramp-dissect-file-name (buffer-file-name))) (buffer-file-name)))) (if (= (shell-command (format "%s --check" (shell-quote-argument command)) "*Test*") 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w)) (kill-buffer "*Test*")) (display-buffer "*Test*")))); -*-
#
# Mandos Monitor - Control and monitor the Mandos server
#
# Copyright © 2008-2019 Teddy Hogeborn
# Copyright © 2008-2019 Björn Påhlsson
#
# This file is part of Mandos.
#
# Mandos is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
#     Mandos is distributed in the hope that it will be useful, but
#     WITHOUT ANY WARRANTY; without even the implied warranty of
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#     GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
#
# Contact the authors at <mandos@recompile.se>.
#

from __future__ import (division, absolute_import, print_function,
                        unicode_literals)

try:
    from future_builtins import *
except ImportError:
    pass

import sys
import argparse
import locale
import datetime
import re
import os
import collections
import json
import unittest
import logging

import dbus

# Show warnings by default
if not sys.warnoptions:
    import warnings
    warnings.simplefilter("default")

log = logging.getLogger(sys.argv[0])
logging.basicConfig(level="INFO", # Show info level messages
                    format="%(message)s") # Show basic log messages

logging.captureWarnings(True)   # Show warnings via the logging system

if sys.version_info.major == 2:
    str = unicode

locale.setlocale(locale.LC_ALL, "")

domain = "se.recompile"
busname = domain + ".Mandos"
server_path = "/"
server_interface = domain + ".Mandos"
client_interface = domain + ".Mandos.Client"
version = "1.8.3"


try:
    dbus.OBJECT_MANAGER_IFACE
except AttributeError:
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"


def milliseconds_to_string(ms):
    td = datetime.timedelta(0, 0, 0, ms)
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
            .format(days="{}T".format(td.days) if td.days else "",
                    hours=td.seconds // 3600,
                    minutes=(td.seconds % 3600) // 60,
                    seconds=td.seconds % 60))


def rfc3339_duration_to_delta(duration):
    """Parse an RFC 3339 "duration" and return a datetime.timedelta

    >>> rfc3339_duration_to_delta("P7D")
    datetime.timedelta(7)
    >>> rfc3339_duration_to_delta("PT60S")
    datetime.timedelta(0, 60)
    >>> rfc3339_duration_to_delta("PT60M")
    datetime.timedelta(0, 3600)
    >>> rfc3339_duration_to_delta("P60M")
    datetime.timedelta(1680)
    >>> rfc3339_duration_to_delta("PT24H")
    datetime.timedelta(1)
    >>> rfc3339_duration_to_delta("P1W")
    datetime.timedelta(7)
    >>> rfc3339_duration_to_delta("PT5M30S")
    datetime.timedelta(0, 330)
    >>> rfc3339_duration_to_delta("P1DT3M20S")
    datetime.timedelta(1, 200)
    >>> # Can not be empty:
    >>> rfc3339_duration_to_delta("")
    Traceback (most recent call last):
    ...
    ValueError: Invalid RFC 3339 duration: u''
    >>> # Must start with "P":
    >>> rfc3339_duration_to_delta("1D")
    Traceback (most recent call last):
    ...
    ValueError: Invalid RFC 3339 duration: u'1D'
    >>> # Must use correct order
    >>> rfc3339_duration_to_delta("PT1S2M")
    Traceback (most recent call last):
    ...
    ValueError: Invalid RFC 3339 duration: u'PT1S2M'
    >>> # Time needs time marker
    >>> rfc3339_duration_to_delta("P1H2S")
    Traceback (most recent call last):
    ...
    ValueError: Invalid RFC 3339 duration: u'P1H2S'
    >>> # Weeks can not be combined with anything else
    >>> rfc3339_duration_to_delta("P1D2W")
    Traceback (most recent call last):
    ...
    ValueError: Invalid RFC 3339 duration: u'P1D2W'
    >>> rfc3339_duration_to_delta("P2W2H")
    Traceback (most recent call last):
    ...
    ValueError: Invalid RFC 3339 duration: u'P2W2H'
    """

    # Parsing an RFC 3339 duration with regular expressions is not
    # possible - there would have to be multiple places for the same
    # values, like seconds.  The current code, while more esoteric, is
    # cleaner without depending on a parsing library.  If Python had a
    # built-in library for parsing we would use it, but we'd like to
    # avoid excessive use of external libraries.

    # New type for defining tokens, syntax, and semantics all-in-one
    Token = collections.namedtuple("Token", (
        "regexp",  # To match token; if "value" is not None, must have
                   # a "group" containing digits
        "value",   # datetime.timedelta or None
        "followers"))           # Tokens valid after this token
    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
    # the "duration" ABNF definition in RFC 3339, Appendix A.
    token_end = Token(re.compile(r"$"), None, frozenset())
    token_second = Token(re.compile(r"(\d+)S"),
                         datetime.timedelta(seconds=1),
                         frozenset((token_end, )))
    token_minute = Token(re.compile(r"(\d+)M"),
                         datetime.timedelta(minutes=1),
                         frozenset((token_second, token_end)))
    token_hour = Token(re.compile(r"(\d+)H"),
                       datetime.timedelta(hours=1),
                       frozenset((token_minute, token_end)))
    token_time = Token(re.compile(r"T"),
                       None,
                       frozenset((token_hour, token_minute,
                                  token_second)))
    token_day = Token(re.compile(r"(\d+)D"),
                      datetime.timedelta(days=1),
                      frozenset((token_time, token_end)))
    token_month = Token(re.compile(r"(\d+)M"),
                        datetime.timedelta(weeks=4),
                        frozenset((token_day, token_end)))
    token_year = Token(re.compile(r"(\d+)Y"),
                       datetime.timedelta(weeks=52),
                       frozenset((token_month, token_end)))
    token_week = Token(re.compile(r"(\d+)W"),
                       datetime.timedelta(weeks=1),
                       frozenset((token_end, )))
    token_duration = Token(re.compile(r"P"), None,
                           frozenset((token_year, token_month,
                                      token_day, token_time,
                                      token_week)))
    # Define starting values:
    # Value so far
    value = datetime.timedelta()
    found_token = None
    # Following valid tokens
    followers = frozenset((token_duration, ))
    # String left to parse
    s = duration
    # Loop until end token is found
    while found_token is not token_end:
        # Search for any currently valid tokens
        for token in followers:
            match = token.regexp.match(s)
            if match is not None:
                # Token found
                if token.value is not None:
                    # Value found, parse digits
                    factor = int(match.group(1), 10)
                    # Add to value so far
                    value += factor * token.value
                # Strip token from string
                s = token.regexp.sub("", s, 1)
                # Go to found token
                found_token = token
                # Set valid next tokens
                followers = found_token.followers
                break
        else:
            # No currently valid tokens were found
            raise ValueError("Invalid RFC 3339 duration: {!r}"
                             .format(duration))
    # End token found
    return value


def string_to_delta(interval):
    """Parse a string and return a datetime.timedelta"""

    try:
        return rfc3339_duration_to_delta(interval)
    except ValueError as e:
        log.warning("%s - Parsing as pre-1.6.1 interval instead",
                    ' '.join(e.args))
    return parse_pre_1_6_1_interval(interval)


def parse_pre_1_6_1_interval(interval):
    """Parse an interval string as documented by Mandos before 1.6.1,
    and return a datetime.timedelta

    >>> parse_pre_1_6_1_interval('7d')
    datetime.timedelta(7)
    >>> parse_pre_1_6_1_interval('60s')
    datetime.timedelta(0, 60)
    >>> parse_pre_1_6_1_interval('60m')
    datetime.timedelta(0, 3600)
    >>> parse_pre_1_6_1_interval('24h')
    datetime.timedelta(1)
    >>> parse_pre_1_6_1_interval('1w')
    datetime.timedelta(7)
    >>> parse_pre_1_6_1_interval('5m 30s')
    datetime.timedelta(0, 330)
    >>> parse_pre_1_6_1_interval('')
    datetime.timedelta(0)
    >>> # Ignore unknown characters, allow any order and repetitions
    >>> parse_pre_1_6_1_interval('2dxy7zz11y3m5m')
    datetime.timedelta(2, 480, 18000)

    """

    value = datetime.timedelta(0)
    regexp = re.compile(r"(\d+)([dsmhw]?)")

    for num, suffix in regexp.findall(interval):
        if suffix == "d":
            value += datetime.timedelta(int(num))
        elif suffix == "s":
            value += datetime.timedelta(0, int(num))
        elif suffix == "m":
            value += datetime.timedelta(0, 0, 0, 0, int(num))
        elif suffix == "h":
            value += datetime.timedelta(0, 0, 0, 0, 0, int(num))
        elif suffix == "w":
            value += datetime.timedelta(0, 0, 0, 0, 0, 0, int(num))
        elif suffix == "":
            value += datetime.timedelta(0, 0, 0, int(num))
    return value


## Classes for commands.

# Abstract classes first
class Command(object):
    """Abstract class for commands"""
    def run(self, mandos, clients):
        """Normal commands should implement run_on_one_client(), but
        commands which want to operate on all clients at the same time
        can override this run() method instead."""
        self.mandos = mandos
        for client in clients:
            self.run_on_one_client(client)

class PrintCmd(Command):
    """Abstract class for commands printing client details"""
    all_keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
                    "Created", "Interval", "Host", "KeyID",
                    "Fingerprint", "CheckerRunning", "LastEnabled",
                    "ApprovalPending", "ApprovedByDefault",
                    "LastApprovalRequest", "ApprovalDelay",
                    "ApprovalDuration", "Checker", "ExtendedTimeout",
                    "Expires", "LastCheckerStatus")
    def run(self, mandos, clients):
        print(self.output(clients))

class PropertyCmd(Command):
    """Abstract class for Actions for setting one client property"""
    def run_on_one_client(self, client):
        """Set the Client's D-Bus property"""
        client.Set(client_interface, self.property, self.value_to_set,
                   dbus_interface=dbus.PROPERTIES_IFACE)

class ValueArgumentMixIn(object):
    """Mixin class for commands taking a value as argument"""
    def __init__(self, value):
        self.value_to_set = value

class MillisecondsValueArgumentMixIn(ValueArgumentMixIn):
    """Mixin class for commands taking a value argument as
    milliseconds."""
    @property
    def value_to_set(self):
        return self._vts
    @value_to_set.setter
    def value_to_set(self, value):
        """When setting, convert value to a datetime.timedelta"""
        self._vts = string_to_delta(value).total_seconds() * 1000

# Actual (non-abstract) command classes

class PrintTableCmd(PrintCmd):
    def __init__(self, verbose=False):
        self.verbose = verbose

    def output(self, clients):
        if self.verbose:
            keywords = self.all_keywords
        else:
            keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
        return str(self.TableOfClients(clients.values(), keywords))

    class TableOfClients(object):
        tableheaders = {
            "Name": "Name",
            "Enabled": "Enabled",
            "Timeout": "Timeout",
            "LastCheckedOK": "Last Successful Check",
            "LastApprovalRequest": "Last Approval Request",
            "Created": "Created",
            "Interval": "Interval",
            "Host": "Host",
            "Fingerprint": "Fingerprint",
            "KeyID": "Key ID",
            "CheckerRunning": "Check Is Running",
            "LastEnabled": "Last Enabled",
            "ApprovalPending": "Approval Is Pending",
            "ApprovedByDefault": "Approved By Default",
            "ApprovalDelay": "Approval Delay",
            "ApprovalDuration": "Approval Duration",
            "Checker": "Checker",
            "ExtendedTimeout": "Extended Timeout",
            "Expires": "Expires",
            "LastCheckerStatus": "Last Checker Status",
        }

        def __init__(self, clients, keywords, tableheaders=None):
            self.clients = clients
            self.keywords = keywords
            if tableheaders is not None:
                self.tableheaders = tableheaders

        def __str__(self):
            return "\n".join(self.rows())

        if sys.version_info.major == 2:
            __unicode__ = __str__
            def __str__(self):
                return str(self).encode(locale.getpreferredencoding())

        def rows(self):
            format_string = self.row_formatting_string()
            rows = [self.header_line(format_string)]
            rows.extend(self.client_line(client, format_string)
                        for client in self.clients)
            return rows

        def row_formatting_string(self):
            "Format string used to format table rows"
            return " ".join("{{{key}:{width}}}".format(
                width=max(len(self.tableheaders[key]),
                          *(len(self.string_from_client(client, key))
                            for client in self.clients)),
                key=key)
                            for key in self.keywords)

        def string_from_client(self, client, key):
            return self.valuetostring(client[key], key)

        @staticmethod
        def valuetostring(value, keyword):
            if isinstance(value, dbus.Boolean):
                return "Yes" if value else "No"
            if keyword in ("Timeout", "Interval", "ApprovalDelay",
                           "ApprovalDuration", "ExtendedTimeout"):
                return milliseconds_to_string(value)
            return str(value)

        def header_line(self, format_string):
            return format_string.format(**self.tableheaders)

        def client_line(self, client, format_string):
            return format_string.format(
                **{key: self.string_from_client(client, key)
                   for key in self.keywords})



class DumpJSONCmd(PrintCmd):
    def output(self, clients):
        data = {client["Name"]:
                {key: self.dbus_boolean_to_bool(client[key])
                 for key in self.all_keywords}
                for client in clients.values()}
        return json.dumps(data, indent=4, separators=(',', ': '))
    @staticmethod
    def dbus_boolean_to_bool(value):
        if isinstance(value, dbus.Boolean):
            value = bool(value)
        return value

class IsEnabledCmd(Command):
    def run_on_one_client(self, client):
        if self.is_enabled(client):
            sys.exit(0)
        sys.exit(1)
    def is_enabled(self, client):
        return client.Get(client_interface, "Enabled",
                          dbus_interface=dbus.PROPERTIES_IFACE)

class RemoveCmd(Command):
    def run_on_one_client(self, client):
        self.mandos.RemoveClient(client.__dbus_object_path__)

class ApproveCmd(Command):
    def run_on_one_client(self, client):
        client.Approve(dbus.Boolean(True),
                       dbus_interface=client_interface)

class DenyCmd(Command):
    def run_on_one_client(self, client):
        client.Approve(dbus.Boolean(False),
                       dbus_interface=client_interface)

class EnableCmd(PropertyCmd):
    property = "Enabled"
    value_to_set = dbus.Boolean(True)

class DisableCmd(PropertyCmd):
    property = "Enabled"
    value_to_set = dbus.Boolean(False)

class BumpTimeoutCmd(PropertyCmd):
    property = "LastCheckedOK"
    value_to_set = ""

class StartCheckerCmd(PropertyCmd):
    property = "CheckerRunning"
    value_to_set = dbus.Boolean(True)

class StopCheckerCmd(PropertyCmd):
    property = "CheckerRunning"
    value_to_set = dbus.Boolean(False)

class ApproveByDefaultCmd(PropertyCmd):
    property = "ApprovedByDefault"
    value_to_set = dbus.Boolean(True)

class DenyByDefaultCmd(PropertyCmd):
    property = "ApprovedByDefault"
    value_to_set = dbus.Boolean(False)

class SetCheckerCmd(PropertyCmd, ValueArgumentMixIn):
    property = "Checker"

class SetHostCmd(PropertyCmd, ValueArgumentMixIn):
    property = "Host"

class SetSecretCmd(PropertyCmd, ValueArgumentMixIn):
    property = "Secret"

class SetTimeoutCmd(PropertyCmd, MillisecondsValueArgumentMixIn):
    property = "Timeout"

class SetExtendedTimeoutCmd(PropertyCmd,
                            MillisecondsValueArgumentMixIn):
    property = "ExtendedTimeout"

class SetIntervalCmd(PropertyCmd, MillisecondsValueArgumentMixIn):
    property = "Interval"

class SetApprovalDelayCmd(PropertyCmd,
                          MillisecondsValueArgumentMixIn):
    property = "ApprovalDelay"

class SetApprovalDurationCmd(PropertyCmd,
                             MillisecondsValueArgumentMixIn):
    property = "ApprovalDuration"

def has_actions(options):
    return any((options.enable,
                options.disable,
                options.bump_timeout,
                options.start_checker,
                options.stop_checker,
                options.is_enabled,
                options.remove,
                options.checker is not None,
                options.timeout is not None,
                options.extended_timeout is not None,
                options.interval is not None,
                options.approved_by_default is not None,
                options.approval_delay is not None,
                options.approval_duration is not None,
                options.host is not None,
                options.secret is not None,
                options.approve,
                options.deny))

def add_command_line_options(parser):
    parser.add_argument("--version", action="version",
                        version="%(prog)s {}".format(version),
                        help="show version number and exit")
    parser.add_argument("-a", "--all", action="store_true",
                        help="Select all clients")
    parser.add_argument("-v", "--verbose", action="store_true",
                        help="Print all fields")
    parser.add_argument("-j", "--dump-json", action="store_true",
                        help="Dump client data in JSON format")
    enable_disable = parser.add_mutually_exclusive_group()
    enable_disable.add_argument("-e", "--enable", action="store_true",
                                help="Enable client")
    enable_disable.add_argument("-d", "--disable",
                                action="store_true",
                                help="disable client")
    parser.add_argument("-b", "--bump-timeout", action="store_true",
                        help="Bump timeout for client")
    start_stop_checker = parser.add_mutually_exclusive_group()
    start_stop_checker.add_argument("--start-checker",
                                    action="store_true",
                                    help="Start checker for client")
    start_stop_checker.add_argument("--stop-checker",
                                    action="store_true",
                                    help="Stop checker for client")
    parser.add_argument("-V", "--is-enabled", action="store_true",
                        help="Check if client is enabled")
    parser.add_argument("-r", "--remove", action="store_true",
                        help="Remove client")
    parser.add_argument("-c", "--checker",
                        help="Set checker command for client")
    parser.add_argument("-t", "--timeout",
                        help="Set timeout for client")
    parser.add_argument("--extended-timeout",
                        help="Set extended timeout for client")
    parser.add_argument("-i", "--interval",
                        help="Set checker interval for client")
    approve_deny_default = parser.add_mutually_exclusive_group()
    approve_deny_default.add_argument(
        "--approve-by-default", action="store_true",
        default=None, dest="approved_by_default",
        help="Set client to be approved by default")
    approve_deny_default.add_argument(
        "--deny-by-default", action="store_false",
        dest="approved_by_default",
        help="Set client to be denied by default")
    parser.add_argument("--approval-delay",
                        help="Set delay before client approve/deny")
    parser.add_argument("--approval-duration",
                        help="Set duration of one client approval")
    parser.add_argument("-H", "--host", help="Set host for client")
    parser.add_argument("-s", "--secret",
                        type=argparse.FileType(mode="rb"),
                        help="Set password blob (file) for client")
    approve_deny = parser.add_mutually_exclusive_group()
    approve_deny.add_argument(
        "-A", "--approve", action="store_true",
        help="Approve any current client request")
    approve_deny.add_argument("-D", "--deny", action="store_true",
                              help="Deny any current client request")
    parser.add_argument("--check", action="store_true",
                        help="Run self-test")
    parser.add_argument("client", nargs="*", help="Client name")


def commands_and_clients_from_options(options):

    commands = []

    if options.dump_json:
        commands.append(DumpJSONCmd())

    if options.enable:
        commands.append(EnableCmd())

    if options.disable:
        commands.append(DisableCmd())

    if options.bump_timeout:
        commands.append(BumpTimeoutCmd(options.bump_timeout))

    if options.start_checker:
        commands.append(StartCheckerCmd())

    if options.stop_checker:
        commands.append(StopCheckerCmd())

    if options.is_enabled:
        commands.append(IsEnabledCmd())

    if options.remove:
        commands.append(RemoveCmd())

    if options.checker is not None:
        commands.append(SetCheckerCmd())

    if options.timeout is not None:
        commands.append(SetTimeoutCmd(options.timeout))

    if options.extended_timeout:
        commands.append(
            SetExtendedTimeoutCmd(options.extended_timeout))

    if options.interval is not None:
        command.append(SetIntervalCmd(options.interval))

    if options.approved_by_default is not None:
        if options.approved_by_default:
            command.append(ApproveByDefaultCmd())
        else:
            command.append(DenyByDefaultCmd())

    if options.approval_delay is not None:
        command.append(SetApprovalDelayCmd(options.approval_delay))

    if options.approval_duration is not None:
        command.append(
            SetApprovalDurationCmd(options.approval_duration))

    if options.host is not None:
        command.append(SetHostCmd(options.host))

    if options.secret is not None:
        command.append(SetSecretCmd(options.secret))

    if options.approve:
        commands.append(ApproveCmd())

    if options.deny:
        commands.append(DenyCmd())

    # If no command option has been given, show table of clients,
    # optionally verbosely
    if not commands:
        commands.append(PrintTableCmd(verbose=options.verbose))

    return commands, options.client


def main():
    parser = argparse.ArgumentParser()

    add_command_line_options(parser)

    options = parser.parse_args()

    if has_actions(options) and not (options.client or options.all):
        parser.error("Options require clients names or --all.")
    if options.verbose and has_actions(options):
        parser.error("--verbose can only be used alone.")
    if options.dump_json and (options.verbose
                              or has_actions(options)):
        parser.error("--dump-json can only be used alone.")
    if options.all and not has_actions(options):
        parser.error("--all requires an action.")
    if options.is_enabled and len(options.client) > 1:
        parser.error("--is-enabled requires exactly one client")

    commands, clientnames = commands_and_clients_from_options(options)

    try:
        bus = dbus.SystemBus()
        mandos_dbus_objc = bus.get_object(busname, server_path)
    except dbus.exceptions.DBusException:
        log.critical("Could not connect to Mandos server")
        sys.exit(1)

    mandos_serv = dbus.Interface(mandos_dbus_objc,
                                 dbus_interface=server_interface)
    mandos_serv_object_manager = dbus.Interface(
        mandos_dbus_objc, dbus_interface=dbus.OBJECT_MANAGER_IFACE)

    # Filter out log message from dbus module
    dbus_logger = logging.getLogger("dbus.proxies")
    class NullFilter(logging.Filter):
        def filter(self, record):
            return False
    dbus_filter = NullFilter()
    try:
        dbus_logger.addFilter(dbus_filter)
        mandos_clients = {path: ifs_and_props[client_interface]
                          for path, ifs_and_props in
                          mandos_serv_object_manager
                          .GetManagedObjects().items()
                          if client_interface in ifs_and_props}
    except dbus.exceptions.DBusException as e:
        log.critical("Failed to access Mandos server through D-Bus:"
                     "\n%s", e)
        sys.exit(1)
    finally:
        # restore dbus logger
        dbus_logger.removeFilter(dbus_filter)

    # Compile dict of (clients: properties) to process
    clients = {}

    if not clientnames:
        clients = {bus.get_object(busname, path): properties
                   for path, properties in mandos_clients.items()}
    else:
        for name in clientnames:
            for path, client in mandos_clients.items():
                if client["Name"] == name:
                    client_objc = bus.get_object(busname, path)
                    clients[client_objc] = client
                    break
            else:
                log.critical("Client not found on server: %r", name)
                sys.exit(1)

    # Run all commands on clients
    for command in commands:
        command.run(mandos_serv, clients)


class Test_milliseconds_to_string(unittest.TestCase):
    def test_all(self):
        self.assertEqual(milliseconds_to_string(93785000),
                         "1T02:03:05")
    def test_no_days(self):
        self.assertEqual(milliseconds_to_string(7385000), "02:03:05")
    def test_all_zero(self):
        self.assertEqual(milliseconds_to_string(0), "00:00:00")
    def test_no_fractional_seconds(self):
        self.assertEqual(milliseconds_to_string(400), "00:00:00")
        self.assertEqual(milliseconds_to_string(900), "00:00:00")
        self.assertEqual(milliseconds_to_string(1900), "00:00:01")

class Test_string_to_delta(unittest.TestCase):
    def test_handles_basic_rfc3339(self):
        self.assertEqual(string_to_delta("PT2H"),
                         datetime.timedelta(0, 7200))
    def test_falls_back_to_pre_1_6_1_with_warning(self):
        # assertLogs only exists in Python 3.4
        if hasattr(self, "assertLogs"):
            with self.assertLogs(log, logging.WARNING):
                value = string_to_delta("2h")
        else:
            class WarningFilter(logging.Filter):
                """Don't show, but record the presence of, warnings"""
                def filter(self, record):
                    is_warning = record.levelno >= logging.WARNING
                    self.found = is_warning or getattr(self, "found",
                                                       False)
                    return not is_warning
            warning_filter = WarningFilter()
            log.addFilter(warning_filter)
            try:
                value = string_to_delta("2h")
            finally:
                log.removeFilter(warning_filter)
            self.assertTrue(getattr(warning_filter, "found", False))
        self.assertEqual(value, datetime.timedelta(0, 7200))


class TestCmd(unittest.TestCase):
    """Abstract class for tests of command classes"""
    def setUp(self):
        testcase = self
        class MockClient(object):
            def __init__(self, name, **attributes):
                self.__dbus_object_path__ = "objpath_{}".format(name)
                self.attributes = attributes
                self.attributes["Name"] = name
                self.calls = []
            def Set(self, interface, property, value, dbus_interface):
                testcase.assertEqual(interface, client_interface)
                testcase.assertEqual(dbus_interface,
                                     dbus.PROPERTIES_IFACE)
                self.attributes[property] = value
                self.calls.append(("Set", (interface, property, value,
                                           dbus_interface)))
            def Get(self, interface, property, dbus_interface):
                testcase.assertEqual(interface, client_interface)
                testcase.assertEqual(dbus_interface,
                                     dbus.PROPERTIES_IFACE)
                self.calls.append(("Get", (interface, property,
                                           dbus_interface)))
                return self.attributes[property]
            def __getitem__(self, key):
                return self.attributes[key]
            def __setitem__(self, key, value):
                self.attributes[key] = value
        self.clients = collections.OrderedDict([
            ("foo",
             MockClient(
                 "foo",
                 KeyID=("92ed150794387c03ce684574b1139a65"
                        "94a34f895daaaf09fd8ea90a27cddb12"),
                 Secret=b"secret",
                 Host="foo.example.org",
                 Enabled=dbus.Boolean(True),
                 Timeout=300000,
                 LastCheckedOK="2019-02-03T00:00:00",
                 Created="2019-01-02T00:00:00",
                 Interval=120000,
                 Fingerprint=("778827225BA7DE539C5A"
                              "7CFA59CFF7CDBD9A5920"),
                 CheckerRunning=dbus.Boolean(False),
                 LastEnabled="2019-01-03T00:00:00",
                 ApprovalPending=dbus.Boolean(False),
                 ApprovedByDefault=dbus.Boolean(True),
                 LastApprovalRequest="",
                 ApprovalDelay=0,
                 ApprovalDuration=1000,
                 Checker="fping -q -- %(host)s",
                 ExtendedTimeout=900000,
                 Expires="2019-02-04T00:00:00",
                 LastCheckerStatus=0)),
            ("barbar",
             MockClient(
                 "barbar",
                 KeyID=("0558568eedd67d622f5c83b35a115f79"
                        "6ab612cff5ad227247e46c2b020f441c"),
                 Secret=b"secretbar",
                 Host="192.0.2.3",
                 Enabled=dbus.Boolean(True),
                 Timeout=300000,
                 LastCheckedOK="2019-02-04T00:00:00",
                 Created="2019-01-03T00:00:00",
                 Interval=120000,
                 Fingerprint=("3E393AEAEFB84C7E89E2"
                              "F547B3A107558FCA3A27"),
                 CheckerRunning=dbus.Boolean(True),
                 LastEnabled="2019-01-04T00:00:00",
                 ApprovalPending=dbus.Boolean(False),
                 ApprovedByDefault=dbus.Boolean(False),
                 LastApprovalRequest="2019-01-03T00:00:00",
                 ApprovalDelay=30000,
                 ApprovalDuration=1000,
                 Checker=":",
                 ExtendedTimeout=900000,
                 Expires="2019-02-05T00:00:00",
                 LastCheckerStatus=-2)),
            ])

class TestPrintTableCmd(TestCmd):
    def test_normal(self):
        output = PrintTableCmd().output(self.clients)
        expected_output = """
Name   Enabled Timeout  Last Successful Check
foo    Yes     00:05:00 2019-02-03T00:00:00  
barbar Yes     00:05:00 2019-02-04T00:00:00  
"""[1:-1]
        self.assertEqual(output, expected_output)
    def test_verbose(self):
        output = PrintTableCmd(verbose=True).output(self.clients)
        expected_output = """
Name   Enabled Timeout  Last Successful Check Created             Interval Host            Key ID                                                           Fingerprint                              Check Is Running Last Enabled        Approval Is Pending Approved By Default Last Approval Request Approval Delay Approval Duration Checker              Extended Timeout Expires             Last Checker Status
foo    Yes     00:05:00 2019-02-03T00:00:00   2019-01-02T00:00:00 00:02:00 foo.example.org 92ed150794387c03ce684574b1139a6594a34f895daaaf09fd8ea90a27cddb12 778827225BA7DE539C5A7CFA59CFF7CDBD9A5920 No               2019-01-03T00:00:00 No                  Yes                                       00:00:00       00:00:01          fping -q -- %(host)s 00:15:00         2019-02-04T00:00:00 0                  
barbar Yes     00:05:00 2019-02-04T00:00:00   2019-01-03T00:00:00 00:02:00 192.0.2.3       0558568eedd67d622f5c83b35a115f796ab612cff5ad227247e46c2b020f441c 3E393AEAEFB84C7E89E2F547B3A107558FCA3A27 Yes              2019-01-04T00:00:00 No                  No                  2019-01-03T00:00:00   00:00:30       00:00:01          :                    00:15:00         2019-02-05T00:00:00 -2                 
"""[1:-1]
        self.assertEqual(output, expected_output)
    def test_one_client(self):
        output = PrintTableCmd().output({"foo": self.clients["foo"]})
        expected_output = """
Name Enabled Timeout  Last Successful Check
foo  Yes     00:05:00 2019-02-03T00:00:00  
"""[1:-1]
        self.assertEqual(output, expected_output)

class TestDumpJSONCmd(TestCmd):
    def setUp(self):
        self.expected_json = {
            "foo": {
                "Name": "foo",
                "KeyID": ("92ed150794387c03ce684574b1139a65"
                          "94a34f895daaaf09fd8ea90a27cddb12"),
                "Host": "foo.example.org",
                "Enabled": True,
                "Timeout": 300000,
                "LastCheckedOK": "2019-02-03T00:00:00",
                "Created": "2019-01-02T00:00:00",
                "Interval": 120000,
                "Fingerprint": ("778827225BA7DE539C5A"
                                "7CFA59CFF7CDBD9A5920"),
                "CheckerRunning": False,
                "LastEnabled": "2019-01-03T00:00:00",
                "ApprovalPending": False,
                "ApprovedByDefault": True,
                "LastApprovalRequest": "",
                "ApprovalDelay": 0,
                "ApprovalDuration": 1000,
                "Checker": "fping -q -- %(host)s",
                "ExtendedTimeout": 900000,
                "Expires": "2019-02-04T00:00:00",
                "LastCheckerStatus": 0,
            },
            "barbar": {
                "Name": "barbar",
                "KeyID": ("0558568eedd67d622f5c83b35a115f79"
                          "6ab612cff5ad227247e46c2b020f441c"),
                "Host": "192.0.2.3",
                "Enabled": True,
                "Timeout": 300000,
                "LastCheckedOK": "2019-02-04T00:00:00",
                "Created": "2019-01-03T00:00:00",
                "Interval": 120000,
                "Fingerprint": ("3E393AEAEFB84C7E89E2"
                                "F547B3A107558FCA3A27"),
                "CheckerRunning": True,
                "LastEnabled": "2019-01-04T00:00:00",
                "ApprovalPending": False,
                "ApprovedByDefault": False,
                "LastApprovalRequest": "2019-01-03T00:00:00",
                "ApprovalDelay": 30000,
                "ApprovalDuration": 1000,
                "Checker": ":",
                "ExtendedTimeout": 900000,
                "Expires": "2019-02-05T00:00:00",
                "LastCheckerStatus": -2,
            },
        }
        return super(TestDumpJSONCmd, self).setUp()
    def test_normal(self):
        json_data = json.loads(DumpJSONCmd().output(self.clients))
        self.assertDictEqual(json_data, self.expected_json)
    def test_one_client(self):
        clients = {"foo": self.clients["foo"]}
        json_data = json.loads(DumpJSONCmd().output(clients))
        expected_json = {"foo": self.expected_json["foo"]}
        self.assertDictEqual(json_data, expected_json)

class TestIsEnabledCmd(TestCmd):
    def test_is_enabled(self):
        self.assertTrue(all(IsEnabledCmd().is_enabled(client)
                            for client in self.clients.values()))
    def test_is_enabled_does_get_attribute(self):
        client = self.clients["foo"]
        self.assertTrue(IsEnabledCmd().is_enabled(client))
        self.assertListEqual(client.calls,
                             [("Get",
                               ("se.recompile.Mandos.Client",
                                "Enabled",
                                "org.freedesktop.DBus.Properties"))])
    def test_is_enabled_run_exits_successfully(self):
        client = self.clients["foo"]
        with self.assertRaises(SystemExit) as e:
            IsEnabledCmd().run(None, [client])
        if e.exception.code is not None:
            self.assertEqual(e.exception.code, 0)
        else:
            self.assertIsNone(e.exception.code)
    def test_is_enabled_run_exits_with_failure(self):
        client = self.clients["foo"]
        client["Enabled"] = dbus.Boolean(False)
        with self.assertRaises(SystemExit) as e:
            IsEnabledCmd().run(None, [client])
        if isinstance(e.exception.code, int):
            self.assertNotEqual(e.exception.code, 0)
        else:
            self.assertIsNotNone(e.exception.code)


class TestRemoveCmd(TestCmd):
    def test_remove(self):
        client = self.clients["foo"]
        class MockMandos(object):
            def __init__(self):
                self.calls = []
            def RemoveClient(self, dbus_path):
                self.calls.append(("RemoveClient", (dbus_path,)))
        mandos = MockMandos()
        RemoveCmd().run(mandos, [client])
        self.assertEqual(len(mandos.calls), 1)
        self.assertListEqual(mandos.calls,
                             [("RemoveClient",
                               (client.__dbus_object_path__,))])



def should_only_run_tests():
    parser = argparse.ArgumentParser(add_help=False)
    parser.add_argument("--check", action='store_true')
    args, unknown_args = parser.parse_known_args()
    run_tests = args.check
    if run_tests:
        # Remove --check argument from sys.argv
        sys.argv[1:] = unknown_args
    return run_tests

# Add all tests from doctest strings
def load_tests(loader, tests, none):
    import doctest
    tests.addTests(doctest.DocTestSuite())
    return tests

if __name__ == "__main__":
    if should_only_run_tests():
        # Call using ./tdd-python-script --check [--verbose]
        unittest.main()
    else:
        main()