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  • Committer: Teddy Hogeborn
  • Date: 2019-03-02 01:40:17 UTC
  • mto: (237.7.594 trunk)
  • mto: This revision was merged to the branch mainline in revision 382.
  • Revision ID: teddy@recompile.se-20190302014017-w6c8qytzlroqej24
mandos-ctl: Refactor

* mandos-ctl (table_rows_of_clients): Refactor into TableOfClients
                                      class.  All callers changed.
  (class TableOfClients): New.

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mandos-ctl
1
1
#!/usr/bin/python
2
 
# -*- mode: python; coding: utf-8 -*-
 
2
# -*- 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*")))); -*-
3
3
#
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
5
#
6
 
# Copyright © 2008-2016 Teddy Hogeborn
7
 
# Copyright © 2008-2016 Björn Påhlsson
8
 
#
9
 
# This program is free software: you can redistribute it and/or modify
10
 
# it under the terms of the GNU General Public License as published by
 
6
# Copyright © 2008-2019 Teddy Hogeborn
 
7
# Copyright © 2008-2019 Björn Påhlsson
 
8
#
 
9
# This file is part of Mandos.
 
10
#
 
11
# Mandos is free software: you can redistribute it and/or modify it
 
12
# under the terms of the GNU General Public License as published by
11
13
# the Free Software Foundation, either version 3 of the License, or
12
14
# (at your option) any later version.
13
15
#
14
 
#     This program is distributed in the hope that it will be useful,
15
 
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
 
16
#     Mandos is distributed in the hope that it will be useful, but
 
17
#     WITHOUT ANY WARRANTY; without even the implied warranty of
16
18
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
19
#     GNU General Public License for more details.
18
20
#
19
21
# You should have received a copy of the GNU General Public License
20
 
# along with this program.  If not, see
21
 
# <http://www.gnu.org/licenses/>.
 
22
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
22
23
#
23
24
# Contact the authors at <mandos@recompile.se>.
24
25
#
38
39
import re
39
40
import os
40
41
import collections
41
 
import doctest
42
42
import json
 
43
import unittest
 
44
import logging
43
45
 
44
46
import dbus
45
47
 
 
48
# Show warnings by default
 
49
if not sys.warnoptions:
 
50
    import warnings
 
51
    warnings.simplefilter("default")
 
52
 
 
53
log = logging.getLogger(sys.argv[0])
 
54
logging.basicConfig(level="INFO", # Show info level messages
 
55
                    format="%(message)s") # Show basic log messages
 
56
 
 
57
logging.captureWarnings(True)   # Show warnings via the logging system
 
58
 
46
59
if sys.version_info.major == 2:
47
60
    str = unicode
48
61
 
58
71
    "Interval": "Interval",
59
72
    "Host": "Host",
60
73
    "Fingerprint": "Fingerprint",
 
74
    "KeyID": "Key ID",
61
75
    "CheckerRunning": "Check Is Running",
62
76
    "LastEnabled": "Last Enabled",
63
77
    "ApprovalPending": "Approval Is Pending",
75
89
server_path = "/"
76
90
server_interface = domain + ".Mandos"
77
91
client_interface = domain + ".Mandos.Client"
78
 
version = "1.7.12"
 
92
version = "1.8.3"
79
93
 
80
94
 
81
95
try:
102
116
    datetime.timedelta(0, 60)
103
117
    >>> rfc3339_duration_to_delta("PT60M")
104
118
    datetime.timedelta(0, 3600)
 
119
    >>> rfc3339_duration_to_delta("P60M")
 
120
    datetime.timedelta(1680)
105
121
    >>> rfc3339_duration_to_delta("PT24H")
106
122
    datetime.timedelta(1)
107
123
    >>> rfc3339_duration_to_delta("P1W")
110
126
    datetime.timedelta(0, 330)
111
127
    >>> rfc3339_duration_to_delta("P1DT3M20S")
112
128
    datetime.timedelta(1, 200)
 
129
    >>> # Can not be empty:
 
130
    >>> rfc3339_duration_to_delta("")
 
131
    Traceback (most recent call last):
 
132
    ...
 
133
    ValueError: Invalid RFC 3339 duration: u''
 
134
    >>> # Must start with "P":
 
135
    >>> rfc3339_duration_to_delta("1D")
 
136
    Traceback (most recent call last):
 
137
    ...
 
138
    ValueError: Invalid RFC 3339 duration: u'1D'
 
139
    >>> # Must use correct order
 
140
    >>> rfc3339_duration_to_delta("PT1S2M")
 
141
    Traceback (most recent call last):
 
142
    ...
 
143
    ValueError: Invalid RFC 3339 duration: u'PT1S2M'
 
144
    >>> # Time needs time marker
 
145
    >>> rfc3339_duration_to_delta("P1H2S")
 
146
    Traceback (most recent call last):
 
147
    ...
 
148
    ValueError: Invalid RFC 3339 duration: u'P1H2S'
 
149
    >>> # Weeks can not be combined with anything else
 
150
    >>> rfc3339_duration_to_delta("P1D2W")
 
151
    Traceback (most recent call last):
 
152
    ...
 
153
    ValueError: Invalid RFC 3339 duration: u'P1D2W'
 
154
    >>> rfc3339_duration_to_delta("P2W2H")
 
155
    Traceback (most recent call last):
 
156
    ...
 
157
    ValueError: Invalid RFC 3339 duration: u'P2W2H'
113
158
    """
114
159
 
115
160
    # Parsing an RFC 3339 duration with regular expressions is not
194
239
 
195
240
def string_to_delta(interval):
196
241
    """Parse a string and return a datetime.timedelta
197
 
 
198
 
    >>> string_to_delta('7d')
199
 
    datetime.timedelta(7)
200
 
    >>> string_to_delta('60s')
201
 
    datetime.timedelta(0, 60)
202
 
    >>> string_to_delta('60m')
203
 
    datetime.timedelta(0, 3600)
204
 
    >>> string_to_delta('24h')
205
 
    datetime.timedelta(1)
206
 
    >>> string_to_delta('1w')
207
 
    datetime.timedelta(7)
208
 
    >>> string_to_delta('5m 30s')
209
 
    datetime.timedelta(0, 330)
210
242
    """
211
243
 
212
244
    try:
213
245
        return rfc3339_duration_to_delta(interval)
214
 
    except ValueError:
215
 
        pass
 
246
    except ValueError as e:
 
247
        log.warning("%s - Parsing as pre-1.6.1 interval instead",
 
248
                    ' '.join(e.args))
 
249
    return parse_pre_1_6_1_interval(interval)
 
250
 
 
251
 
 
252
def parse_pre_1_6_1_interval(interval):
 
253
    """Parse an interval string as documented by Mandos before 1.6.1, and
 
254
    return a datetime.timedelta
 
255
    >>> parse_pre_1_6_1_interval('7d')
 
256
    datetime.timedelta(7)
 
257
    >>> parse_pre_1_6_1_interval('60s')
 
258
    datetime.timedelta(0, 60)
 
259
    >>> parse_pre_1_6_1_interval('60m')
 
260
    datetime.timedelta(0, 3600)
 
261
    >>> parse_pre_1_6_1_interval('24h')
 
262
    datetime.timedelta(1)
 
263
    >>> parse_pre_1_6_1_interval('1w')
 
264
    datetime.timedelta(7)
 
265
    >>> parse_pre_1_6_1_interval('5m 30s')
 
266
    datetime.timedelta(0, 330)
 
267
    >>> parse_pre_1_6_1_interval('')
 
268
    datetime.timedelta(0)
 
269
    >>> # Ignore unknown characters, allow any order and repetitions
 
270
    >>> parse_pre_1_6_1_interval('2dxy7zz11y3m5m')
 
271
    datetime.timedelta(2, 480, 18000)
 
272
 
 
273
    """
216
274
 
217
275
    value = datetime.timedelta(0)
218
276
    regexp = re.compile(r"(\d+)([dsmhw]?)")
234
292
 
235
293
 
236
294
def print_clients(clients, keywords):
 
295
    print('\n'.join(TableOfClients(clients, keywords).rows()))
 
296
 
 
297
class TableOfClients(object):
 
298
    def __init__(self, clients, keywords):
 
299
        self.clients = clients
 
300
        self.keywords = keywords
 
301
 
 
302
    @staticmethod
237
303
    def valuetostring(value, keyword):
238
 
        if type(value) is dbus.Boolean:
 
304
        if isinstance(value, dbus.Boolean):
239
305
            return "Yes" if value else "No"
240
306
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
241
307
                       "ApprovalDuration", "ExtendedTimeout"):
242
308
            return milliseconds_to_string(value)
243
309
        return str(value)
244
310
 
245
 
    # Create format string to print table rows
246
 
    format_string = " ".join("{{{key}:{width}}}".format(
247
 
        width=max(len(tablewords[key]),
248
 
                  max(len(valuetostring(client[key], key))
249
 
                      for client in clients)),
250
 
        key=key)
251
 
                             for key in keywords)
252
 
    # Print header line
253
 
    print(format_string.format(**tablewords))
254
 
    for client in clients:
255
 
        print(format_string
256
 
              .format(**{key: valuetostring(client[key], key)
257
 
                         for key in keywords}))
 
311
    def rows(self):
 
312
        # Create format string to format table rows
 
313
        format_string = " ".join("{{{key}:{width}}}".format(
 
314
            width=max(len(tablewords[key]),
 
315
                      max(len(self.valuetostring(client[key], key))
 
316
                          for client in self.clients)),
 
317
            key=key)
 
318
                                 for key in self.keywords)
 
319
        # Start with header line
 
320
        rows = [format_string.format(**tablewords)]
 
321
        for client in self.clients:
 
322
            rows.append(format_string
 
323
                        .format(**{key: self.valuetostring(client[key], key)
 
324
                                   for key in self.keywords}))
 
325
        return rows
258
326
 
259
327
 
260
328
def has_actions(options):
344
412
    if options.all and not has_actions(options):
345
413
        parser.error("--all requires an action.")
346
414
 
347
 
    if options.check:
348
 
        fail_count, test_count = doctest.testmod()
349
 
        sys.exit(os.EX_OK if fail_count == 0 else 1)
350
 
 
351
415
    try:
352
416
        bus = dbus.SystemBus()
353
417
        mandos_dbus_objc = bus.get_object(busname, server_path)
354
418
    except dbus.exceptions.DBusException:
355
 
        print("Could not connect to Mandos server", file=sys.stderr)
 
419
        log.critical("Could not connect to Mandos server")
356
420
        sys.exit(1)
357
421
 
358
422
    mandos_serv = dbus.Interface(mandos_dbus_objc,
377
441
            os.dup2(stderrcopy, sys.stderr.fileno())
378
442
            os.close(stderrcopy)
379
443
    except dbus.exceptions.DBusException as e:
380
 
        print("Access denied: "
381
 
              "Accessing mandos server through D-Bus: {}".format(e),
382
 
              file=sys.stderr)
 
444
        log.critical("Failed to access Mandos server through D-Bus:"
 
445
                     "\n%s", e)
383
446
        sys.exit(1)
384
447
 
385
448
    # Compile dict of (clients: properties) to process
396
459
                    clients[client_objc] = client
397
460
                    break
398
461
            else:
399
 
                print("Client not found on server: {!r}"
400
 
                      .format(name), file=sys.stderr)
 
462
                log.critical("Client not found on server: %r", name)
401
463
                sys.exit(1)
402
464
 
403
465
    if not has_actions(options) and clients:
404
466
        if options.verbose or options.dump_json:
405
467
            keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
406
 
                        "Created", "Interval", "Host", "Fingerprint",
407
 
                        "CheckerRunning", "LastEnabled",
408
 
                        "ApprovalPending", "ApprovedByDefault",
409
 
                        "LastApprovalRequest", "ApprovalDelay",
410
 
                        "ApprovalDuration", "Checker",
411
 
                        "ExtendedTimeout", "Expires",
 
468
                        "Created", "Interval", "Host", "KeyID",
 
469
                        "Fingerprint", "CheckerRunning",
 
470
                        "LastEnabled", "ApprovalPending",
 
471
                        "ApprovedByDefault", "LastApprovalRequest",
 
472
                        "ApprovalDelay", "ApprovalDuration",
 
473
                        "Checker", "ExtendedTimeout", "Expires",
412
474
                        "LastCheckerStatus")
413
475
        else:
414
476
            keywords = defaultkeywords
491
553
                client.Approve(dbus.Boolean(False),
492
554
                               dbus_interface=client_interface)
493
555
 
 
556
 
 
557
class Test_milliseconds_to_string(unittest.TestCase):
 
558
    def test_all(self):
 
559
        self.assertEqual(milliseconds_to_string(93785000),
 
560
                         "1T02:03:05")
 
561
    def test_no_days(self):
 
562
        self.assertEqual(milliseconds_to_string(7385000), "02:03:05")
 
563
    def test_all_zero(self):
 
564
        self.assertEqual(milliseconds_to_string(0), "00:00:00")
 
565
    def test_no_fractional_seconds(self):
 
566
        self.assertEqual(milliseconds_to_string(400), "00:00:00")
 
567
        self.assertEqual(milliseconds_to_string(900), "00:00:00")
 
568
        self.assertEqual(milliseconds_to_string(1900), "00:00:01")
 
569
 
 
570
class Test_string_to_delta(unittest.TestCase):
 
571
    def test_handles_basic_rfc3339(self):
 
572
        self.assertEqual(string_to_delta("PT2H"),
 
573
                         datetime.timedelta(0, 7200))
 
574
    def test_falls_back_to_pre_1_6_1_with_warning(self):
 
575
        # assertLogs only exists in Python 3.4
 
576
        if hasattr(self, "assertLogs"):
 
577
            with self.assertLogs(log, logging.WARNING):
 
578
                value = string_to_delta("2h")
 
579
        else:
 
580
            value = string_to_delta("2h")
 
581
        self.assertEqual(value, datetime.timedelta(0, 7200))
 
582
 
 
583
class Test_TableOfClients(unittest.TestCase):
 
584
    def setUp(self):
 
585
        global tablewords
 
586
        self.old_tablewords = tablewords
 
587
        tablewords = {
 
588
            "Attr1": "X",
 
589
            "AttrTwo": "Yy",
 
590
            "AttrThree": "Zzz",
 
591
            "Bool": "A D-BUS Boolean",
 
592
            "NonDbusBoolean": "A Non-D-BUS Boolean",
 
593
            "Integer": "An Integer",
 
594
            "Timeout": "Timedelta 1",
 
595
            "Interval": "Timedelta 2",
 
596
            "ApprovalDelay": "Timedelta 3",
 
597
            "ApprovalDuration": "Timedelta 4",
 
598
            "ExtendedTimeout": "Timedelta 5",
 
599
            "String": "A String",
 
600
        }
 
601
        self.keywords = ["Attr1", "AttrTwo"]
 
602
        self.clients = [
 
603
            {
 
604
                "Attr1": "x1",
 
605
                "AttrTwo": "y1",
 
606
                "AttrThree": "z1",
 
607
                "Bool": dbus.Boolean(False),
 
608
                "NonDbusBoolean": False,
 
609
                "Integer": 0,
 
610
                "Timeout": 0,
 
611
                "Interval": 1000,
 
612
                "ApprovalDelay": 2000,
 
613
                "ApprovalDuration": 3000,
 
614
                "ExtendedTimeout": 4000,
 
615
                "String": "",
 
616
            },
 
617
            {
 
618
                "Attr1": "x2",
 
619
                "AttrTwo": "y2",
 
620
                "AttrThree": "z2",
 
621
                "Bool": dbus.Boolean(True),
 
622
                "NonDbusBoolean": True,
 
623
                "Integer": 1,
 
624
                "Timeout": 93785000,
 
625
                "Interval": 93786000,
 
626
                "ApprovalDelay": 93787000,
 
627
                "ApprovalDuration": 93788000,
 
628
                "ExtendedTimeout": 93789000,
 
629
                "String": "A huge string which will not fit," * 10,
 
630
            },
 
631
        ]
 
632
    def tearDown(self):
 
633
        global tablewords
 
634
        tablewords = self.old_tablewords
 
635
    def test_short_header(self):
 
636
        rows = TableOfClients(self.clients, self.keywords).rows()
 
637
        expected_rows = [
 
638
            "X  Yy",
 
639
            "x1 y1",
 
640
            "x2 y2"]
 
641
        self.assertEqual(rows, expected_rows)
 
642
    def test_booleans(self):
 
643
        keywords = ["Bool", "NonDbusBoolean"]
 
644
        rows = TableOfClients(self.clients, keywords).rows()
 
645
        expected_rows = [
 
646
            "A D-BUS Boolean A Non-D-BUS Boolean",
 
647
            "No              False              ",
 
648
            "Yes             True               ",
 
649
        ]
 
650
        self.assertEqual(rows, expected_rows)
 
651
    def test_milliseconds_detection(self):
 
652
        keywords = ["Integer", "Timeout", "Interval", "ApprovalDelay",
 
653
                    "ApprovalDuration", "ExtendedTimeout"]
 
654
        rows = TableOfClients(self.clients, keywords).rows()
 
655
        expected_rows = ("""
 
656
An Integer Timedelta 1 Timedelta 2 Timedelta 3 Timedelta 4 Timedelta 5
 
657
0          00:00:00    00:00:01    00:00:02    00:00:03    00:00:04   
 
658
1          1T02:03:05  1T02:03:06  1T02:03:07  1T02:03:08  1T02:03:09 
 
659
"""
 
660
        ).splitlines()[1:]
 
661
        self.assertEqual(rows, expected_rows)
 
662
    def test_empty_and_long_string_values(self):
 
663
        keywords = ["String"]
 
664
        rows = TableOfClients(self.clients, keywords).rows()
 
665
        expected_rows = ("""
 
666
A String                                                                                                                                                                                                                                                                                                                                  
 
667
                                                                                                                                                                                                                                                                                                                                          
 
668
A huge string which will not fit,A huge string which will not fit,A huge string which will not fit,A huge string which will not fit,A huge string which will not fit,A huge string which will not fit,A huge string which will not fit,A huge string which will not fit,A huge string which will not fit,A huge string which will not fit,
 
669
"""
 
670
        ).splitlines()[1:]
 
671
        self.assertEqual(rows, expected_rows)
 
672
 
 
673
 
 
674
 
 
675
def should_only_run_tests():
 
676
    parser = argparse.ArgumentParser(add_help=False)
 
677
    parser.add_argument("--check", action='store_true')
 
678
    args, unknown_args = parser.parse_known_args()
 
679
    run_tests = args.check
 
680
    if run_tests:
 
681
        # Remove --check argument from sys.argv
 
682
        sys.argv[1:] = unknown_args
 
683
    return run_tests
 
684
 
 
685
# Add all tests from doctest strings
 
686
def load_tests(loader, tests, none):
 
687
    import doctest
 
688
    tests.addTests(doctest.DocTestSuite())
 
689
    return tests
494
690
 
495
691
if __name__ == "__main__":
496
 
    main()
 
692
    if should_only_run_tests():
 
693
        # Call using ./tdd-python-script --check [--verbose]
 
694
        unittest.main()
 
695
    else:
 
696
        main()