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  • Committer: Teddy Hogeborn
  • Date: 2019-02-28 21:07:58 UTC
  • Revision ID: teddy@recompile.se-20190228210758-zt2bfeer3v66porp
mandos-ctl (rfc3339_duration_to_delta): Improve tests

* mandos-ctl (rfc3339_duration_to_delta): Add test for month-only
                                          value, and tests that
                                          invalid values raises
                                          ValueError.

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#!/usr/bin/python
2
 
# -*- mode: python; coding: utf-8 -*-
3
 
 
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
#
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
 
6
 
# Copyright © 2008-2014 Teddy Hogeborn
7
 
# Copyright © 2008-2014 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
 
5
#
 
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
 
 
22
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
23
#
23
24
# Contact the authors at <mandos@recompile.se>.
24
 
 
25
#
25
26
 
26
27
from __future__ import (division, absolute_import, print_function,
27
28
                        unicode_literals)
38
39
import re
39
40
import os
40
41
import collections
41
 
import doctest
 
42
import json
 
43
import unittest
 
44
import logging
42
45
 
43
46
import dbus
44
47
 
45
 
if sys.version_info[0] == 2:
 
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
 
 
59
if sys.version_info.major == 2:
46
60
    str = unicode
47
61
 
48
62
locale.setlocale(locale.LC_ALL, "")
57
71
    "Interval": "Interval",
58
72
    "Host": "Host",
59
73
    "Fingerprint": "Fingerprint",
 
74
    "KeyID": "Key ID",
60
75
    "CheckerRunning": "Check Is Running",
61
76
    "LastEnabled": "Last Enabled",
62
77
    "ApprovalPending": "Approval Is Pending",
64
79
    "ApprovalDelay": "Approval Delay",
65
80
    "ApprovalDuration": "Approval Duration",
66
81
    "Checker": "Checker",
67
 
    "ExtendedTimeout" : "Extended Timeout"
68
 
    }
 
82
    "ExtendedTimeout": "Extended Timeout",
 
83
    "Expires": "Expires",
 
84
    "LastCheckerStatus": "Last Checker Status",
 
85
}
69
86
defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
70
87
domain = "se.recompile"
71
88
busname = domain + ".Mandos"
72
89
server_path = "/"
73
90
server_interface = domain + ".Mandos"
74
91
client_interface = domain + ".Mandos.Client"
75
 
version = "1.6.7"
76
 
 
77
 
def timedelta_to_milliseconds(td):
78
 
    """Convert a datetime.timedelta object to milliseconds"""
79
 
    return ((td.days * 24 * 60 * 60 * 1000)
80
 
            + (td.seconds * 1000)
81
 
            + (td.microseconds // 1000))
 
92
version = "1.8.3"
 
93
 
 
94
 
 
95
try:
 
96
    dbus.OBJECT_MANAGER_IFACE
 
97
except AttributeError:
 
98
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
99
 
82
100
 
83
101
def milliseconds_to_string(ms):
84
102
    td = datetime.timedelta(0, 0, 0, ms)
85
103
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
86
 
            .format(days = "{0}T".format(td.days) if td.days else "",
87
 
                    hours = td.seconds // 3600,
88
 
                    minutes = (td.seconds % 3600) // 60,
89
 
                    seconds = td.seconds % 60,
90
 
                    ))
 
104
            .format(days="{}T".format(td.days) if td.days else "",
 
105
                    hours=td.seconds // 3600,
 
106
                    minutes=(td.seconds % 3600) // 60,
 
107
                    seconds=td.seconds % 60))
91
108
 
92
109
 
93
110
def rfc3339_duration_to_delta(duration):
94
111
    """Parse an RFC 3339 "duration" and return a datetime.timedelta
95
 
    
 
112
 
96
113
    >>> rfc3339_duration_to_delta("P7D")
97
114
    datetime.timedelta(7)
98
115
    >>> rfc3339_duration_to_delta("PT60S")
99
116
    datetime.timedelta(0, 60)
100
117
    >>> rfc3339_duration_to_delta("PT60M")
101
118
    datetime.timedelta(0, 3600)
 
119
    >>> rfc3339_duration_to_delta("P60M")
 
120
    datetime.timedelta(1680)
102
121
    >>> rfc3339_duration_to_delta("PT24H")
103
122
    datetime.timedelta(1)
104
123
    >>> rfc3339_duration_to_delta("P1W")
107
126
    datetime.timedelta(0, 330)
108
127
    >>> rfc3339_duration_to_delta("P1DT3M20S")
109
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'
110
158
    """
111
 
    
 
159
 
112
160
    # Parsing an RFC 3339 duration with regular expressions is not
113
161
    # possible - there would have to be multiple places for the same
114
162
    # values, like seconds.  The current code, while more esoteric, is
115
163
    # cleaner without depending on a parsing library.  If Python had a
116
164
    # built-in library for parsing we would use it, but we'd like to
117
165
    # avoid excessive use of external libraries.
118
 
    
 
166
 
119
167
    # New type for defining tokens, syntax, and semantics all-in-one
120
 
    Token = collections.namedtuple("Token",
121
 
                                   ("regexp", # To match token; if
122
 
                                              # "value" is not None,
123
 
                                              # must have a "group"
124
 
                                              # containing digits
125
 
                                    "value",  # datetime.timedelta or
126
 
                                              # None
127
 
                                    "followers")) # Tokens valid after
128
 
                                                  # this token
 
168
    Token = collections.namedtuple("Token", (
 
169
        "regexp",  # To match token; if "value" is not None, must have
 
170
                   # a "group" containing digits
 
171
        "value",   # datetime.timedelta or None
 
172
        "followers"))           # Tokens valid after this token
129
173
    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
130
174
    # the "duration" ABNF definition in RFC 3339, Appendix A.
131
175
    token_end = Token(re.compile(r"$"), None, frozenset())
132
176
    token_second = Token(re.compile(r"(\d+)S"),
133
177
                         datetime.timedelta(seconds=1),
134
 
                         frozenset((token_end,)))
 
178
                         frozenset((token_end, )))
135
179
    token_minute = Token(re.compile(r"(\d+)M"),
136
180
                         datetime.timedelta(minutes=1),
137
181
                         frozenset((token_second, token_end)))
153
197
                       frozenset((token_month, token_end)))
154
198
    token_week = Token(re.compile(r"(\d+)W"),
155
199
                       datetime.timedelta(weeks=1),
156
 
                       frozenset((token_end,)))
 
200
                       frozenset((token_end, )))
157
201
    token_duration = Token(re.compile(r"P"), None,
158
202
                           frozenset((token_year, token_month,
159
203
                                      token_day, token_time,
160
204
                                      token_week)))
161
 
    # Define starting values
162
 
    value = datetime.timedelta() # Value so far
 
205
    # Define starting values:
 
206
    # Value so far
 
207
    value = datetime.timedelta()
163
208
    found_token = None
164
 
    followers = frozenset((token_duration,)) # Following valid tokens
165
 
    s = duration                # String left to parse
 
209
    # Following valid tokens
 
210
    followers = frozenset((token_duration, ))
 
211
    # String left to parse
 
212
    s = duration
166
213
    # Loop until end token is found
167
214
    while found_token is not token_end:
168
215
        # Search for any currently valid tokens
184
231
                break
185
232
        else:
186
233
            # No currently valid tokens were found
187
 
            raise ValueError("Invalid RFC 3339 duration")
 
234
            raise ValueError("Invalid RFC 3339 duration: {!r}"
 
235
                             .format(duration))
188
236
    # End token found
189
237
    return value
190
238
 
191
239
 
192
240
def string_to_delta(interval):
193
241
    """Parse a string and return a datetime.timedelta
194
 
    
195
 
    >>> string_to_delta("7d")
 
242
 
 
243
    >>> string_to_delta('7d')
196
244
    datetime.timedelta(7)
197
 
    >>> string_to_delta("60s")
 
245
    >>> string_to_delta('60s')
198
246
    datetime.timedelta(0, 60)
199
 
    >>> string_to_delta("60m")
 
247
    >>> string_to_delta('60m')
200
248
    datetime.timedelta(0, 3600)
201
 
    >>> string_to_delta("24h")
 
249
    >>> string_to_delta('24h')
202
250
    datetime.timedelta(1)
203
 
    >>> string_to_delta("1w")
 
251
    >>> string_to_delta('1w')
204
252
    datetime.timedelta(7)
205
 
    >>> string_to_delta("5m 30s")
 
253
    >>> string_to_delta('5m 30s')
206
254
    datetime.timedelta(0, 330)
207
255
    """
208
 
    
 
256
 
209
257
    try:
210
258
        return rfc3339_duration_to_delta(interval)
211
259
    except ValueError:
212
260
        pass
213
 
    
 
261
 
214
262
    value = datetime.timedelta(0)
215
263
    regexp = re.compile(r"(\d+)([dsmhw]?)")
216
 
    
 
264
 
217
265
    for num, suffix in regexp.findall(interval):
218
266
        if suffix == "d":
219
267
            value += datetime.timedelta(int(num))
229
277
            value += datetime.timedelta(0, 0, 0, int(num))
230
278
    return value
231
279
 
 
280
 
232
281
def print_clients(clients, keywords):
233
282
    def valuetostring(value, keyword):
234
 
        if type(value) is dbus.Boolean:
 
283
        if isinstance(value, dbus.Boolean):
235
284
            return "Yes" if value else "No"
236
285
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
237
286
                       "ApprovalDuration", "ExtendedTimeout"):
238
287
            return milliseconds_to_string(value)
239
288
        return str(value)
240
 
    
 
289
 
241
290
    # Create format string to print table rows
242
291
    format_string = " ".join("{{{key}:{width}}}".format(
243
 
            width = max(len(tablewords[key]),
244
 
                        max(len(valuetostring(client[key],
245
 
                                              key))
246
 
                            for client in
247
 
                            clients)),
248
 
            key = key) for key in keywords)
 
292
        width=max(len(tablewords[key]),
 
293
                  max(len(valuetostring(client[key], key))
 
294
                      for client in clients)),
 
295
        key=key)
 
296
                             for key in keywords)
249
297
    # Print header line
250
298
    print(format_string.format(**tablewords))
251
299
    for client in clients:
252
 
        print(format_string.format(**dict((key,
253
 
                                           valuetostring(client[key],
254
 
                                                         key))
255
 
                                          for key in keywords)))
 
300
        print(format_string
 
301
              .format(**{key: valuetostring(client[key], key)
 
302
                         for key in keywords}))
 
303
 
256
304
 
257
305
def has_actions(options):
258
306
    return any((options.enable,
274
322
                options.approve,
275
323
                options.deny))
276
324
 
 
325
 
277
326
def main():
278
327
    parser = argparse.ArgumentParser()
279
328
    parser.add_argument("--version", action="version",
280
 
                        version = "%(prog)s {0}".format(version),
 
329
                        version="%(prog)s {}".format(version),
281
330
                        help="show version number and exit")
282
331
    parser.add_argument("-a", "--all", action="store_true",
283
332
                        help="Select all clients")
284
333
    parser.add_argument("-v", "--verbose", action="store_true",
285
334
                        help="Print all fields")
 
335
    parser.add_argument("-j", "--dump-json", action="store_true",
 
336
                        help="Dump client data in JSON format")
286
337
    parser.add_argument("-e", "--enable", action="store_true",
287
338
                        help="Enable client")
288
339
    parser.add_argument("-d", "--disable", action="store_true",
327
378
                        help="Run self-test")
328
379
    parser.add_argument("client", nargs="*", help="Client name")
329
380
    options = parser.parse_args()
330
 
    
 
381
 
331
382
    if has_actions(options) and not (options.client or options.all):
332
383
        parser.error("Options require clients names or --all.")
333
384
    if options.verbose and has_actions(options):
334
 
        parser.error("--verbose can only be used alone or with"
335
 
                     " --all.")
 
385
        parser.error("--verbose can only be used alone.")
 
386
    if options.dump_json and (options.verbose
 
387
                              or has_actions(options)):
 
388
        parser.error("--dump-json can only be used alone.")
336
389
    if options.all and not has_actions(options):
337
390
        parser.error("--all requires an action.")
338
391
 
339
 
    if options.check:
340
 
        fail_count, test_count = doctest.testmod()
341
 
        sys.exit(os.EX_OK if fail_count == 0 else 1)
342
 
    
343
392
    try:
344
393
        bus = dbus.SystemBus()
345
394
        mandos_dbus_objc = bus.get_object(busname, server_path)
346
395
    except dbus.exceptions.DBusException:
347
 
        print("Could not connect to Mandos server",
348
 
              file=sys.stderr)
 
396
        log.critical("Could not connect to Mandos server")
349
397
        sys.exit(1)
350
 
    
 
398
 
351
399
    mandos_serv = dbus.Interface(mandos_dbus_objc,
352
 
                                 dbus_interface = server_interface)
353
 
    
354
 
    #block stderr since dbus library prints to stderr
 
400
                                 dbus_interface=server_interface)
 
401
    mandos_serv_object_manager = dbus.Interface(
 
402
        mandos_dbus_objc, dbus_interface=dbus.OBJECT_MANAGER_IFACE)
 
403
 
 
404
    # block stderr since dbus library prints to stderr
355
405
    null = os.open(os.path.devnull, os.O_RDWR)
356
406
    stderrcopy = os.dup(sys.stderr.fileno())
357
407
    os.dup2(null, sys.stderr.fileno())
358
408
    os.close(null)
359
409
    try:
360
410
        try:
361
 
            mandos_clients = mandos_serv.GetAllClientsWithProperties()
 
411
            mandos_clients = {path: ifs_and_props[client_interface]
 
412
                              for path, ifs_and_props in
 
413
                              mandos_serv_object_manager
 
414
                              .GetManagedObjects().items()
 
415
                              if client_interface in ifs_and_props}
362
416
        finally:
363
 
            #restore stderr
 
417
            # restore stderr
364
418
            os.dup2(stderrcopy, sys.stderr.fileno())
365
419
            os.close(stderrcopy)
366
 
    except dbus.exceptions.DBusException:
367
 
        print("Access denied: Accessing mandos server through dbus.",
368
 
              file=sys.stderr)
 
420
    except dbus.exceptions.DBusException as e:
 
421
        log.critical("Failed to access Mandos server through D-Bus:"
 
422
                     "\n%s", e)
369
423
        sys.exit(1)
370
 
    
 
424
 
371
425
    # Compile dict of (clients: properties) to process
372
 
    clients={}
373
 
    
 
426
    clients = {}
 
427
 
374
428
    if options.all or not options.client:
375
 
        clients = dict((bus.get_object(busname, path), properties)
376
 
                       for path, properties in
377
 
                       mandos_clients.items())
 
429
        clients = {bus.get_object(busname, path): properties
 
430
                   for path, properties in mandos_clients.items()}
378
431
    else:
379
432
        for name in options.client:
380
 
            for path, client in mandos_clients.iteritems():
 
433
            for path, client in mandos_clients.items():
381
434
                if client["Name"] == name:
382
435
                    client_objc = bus.get_object(busname, path)
383
436
                    clients[client_objc] = client
384
437
                    break
385
438
            else:
386
 
                print("Client not found on server: {0!r}"
387
 
                      .format(name), file=sys.stderr)
 
439
                log.critical("Client not found on server: %r", name)
388
440
                sys.exit(1)
389
 
    
 
441
 
390
442
    if not has_actions(options) and clients:
391
 
        if options.verbose:
392
 
            keywords = ("Name", "Enabled", "Timeout",
393
 
                        "LastCheckedOK", "Created", "Interval",
394
 
                        "Host", "Fingerprint", "CheckerRunning",
 
443
        if options.verbose or options.dump_json:
 
444
            keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
 
445
                        "Created", "Interval", "Host", "KeyID",
 
446
                        "Fingerprint", "CheckerRunning",
395
447
                        "LastEnabled", "ApprovalPending",
396
 
                        "ApprovedByDefault",
397
 
                        "LastApprovalRequest", "ApprovalDelay",
398
 
                        "ApprovalDuration", "Checker",
399
 
                        "ExtendedTimeout")
 
448
                        "ApprovedByDefault", "LastApprovalRequest",
 
449
                        "ApprovalDelay", "ApprovalDuration",
 
450
                        "Checker", "ExtendedTimeout", "Expires",
 
451
                        "LastCheckerStatus")
400
452
        else:
401
453
            keywords = defaultkeywords
402
 
        
403
 
        print_clients(clients.values(), keywords)
 
454
 
 
455
        if options.dump_json:
 
456
            json.dump({client["Name"]: {key:
 
457
                                        bool(client[key])
 
458
                                        if isinstance(client[key],
 
459
                                                      dbus.Boolean)
 
460
                                        else client[key]
 
461
                                        for key in keywords}
 
462
                       for client in clients.values()},
 
463
                      fp=sys.stdout, indent=4,
 
464
                      separators=(',', ': '))
 
465
            print()
 
466
        else:
 
467
            print_clients(clients.values(), keywords)
404
468
    else:
405
469
        # Process each client in the list by all selected options
406
470
        for client in clients:
 
471
 
407
472
            def set_client_prop(prop, value):
408
473
                """Set a Client D-Bus property"""
409
474
                client.Set(client_interface, prop, value,
410
475
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
476
 
411
477
            def set_client_prop_ms(prop, value):
412
478
                """Set a Client D-Bus property, converted
413
479
                from a string to milliseconds."""
414
480
                set_client_prop(prop,
415
 
                                timedelta_to_milliseconds
416
 
                                (string_to_delta(value)))
 
481
                                string_to_delta(value).total_seconds()
 
482
                                * 1000)
 
483
 
417
484
            if options.remove:
418
485
                mandos_serv.RemoveClient(client.__dbus_object_path__)
419
486
            if options.enable:
427
494
            if options.stop_checker:
428
495
                set_client_prop("CheckerRunning", dbus.Boolean(False))
429
496
            if options.is_enabled:
430
 
                sys.exit(0 if client.Get(client_interface,
431
 
                                         "Enabled",
432
 
                                         dbus_interface=
433
 
                                         dbus.PROPERTIES_IFACE)
434
 
                         else 1)
 
497
                if client.Get(client_interface, "Enabled",
 
498
                              dbus_interface=dbus.PROPERTIES_IFACE):
 
499
                    sys.exit(0)
 
500
                else:
 
501
                    sys.exit(1)
435
502
            if options.checker is not None:
436
503
                set_client_prop("Checker", options.checker)
437
504
            if options.host is not None:
463
530
                client.Approve(dbus.Boolean(False),
464
531
                               dbus_interface=client_interface)
465
532
 
 
533
 
 
534
class Test_milliseconds_to_string(unittest.TestCase):
 
535
    def test_all(self):
 
536
        self.assertEqual(milliseconds_to_string(93785000),
 
537
                         "1T02:03:05")
 
538
    def test_no_days(self):
 
539
        self.assertEqual(milliseconds_to_string(7385000), "02:03:05")
 
540
    def test_all_zero(self):
 
541
        self.assertEqual(milliseconds_to_string(0), "00:00:00")
 
542
    def test_no_fractional_seconds(self):
 
543
        self.assertEqual(milliseconds_to_string(400), "00:00:00")
 
544
        self.assertEqual(milliseconds_to_string(900), "00:00:00")
 
545
        self.assertEqual(milliseconds_to_string(1900), "00:00:01")
 
546
 
 
547
 
 
548
def should_only_run_tests():
 
549
    parser = argparse.ArgumentParser(add_help=False)
 
550
    parser.add_argument("--check", action='store_true')
 
551
    args, unknown_args = parser.parse_known_args()
 
552
    run_tests = args.check
 
553
    if run_tests:
 
554
        # Remove --check argument from sys.argv
 
555
        sys.argv[1:] = unknown_args
 
556
    return run_tests
 
557
 
 
558
# Add all tests from doctest strings
 
559
def load_tests(loader, tests, none):
 
560
    import doctest
 
561
    tests.addTests(doctest.DocTestSuite())
 
562
    return tests
 
563
 
466
564
if __name__ == "__main__":
467
 
    main()
 
565
    if should_only_run_tests():
 
566
        # Call using ./tdd-python-script --check [--verbose]
 
567
        unittest.main()
 
568
    else:
 
569
        main()