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  • Committer: Teddy Hogeborn
  • Date: 2019-03-03 14:22:37 UTC
  • Revision ID: teddy@recompile.se-20190303142237-tb8x6rbqms5ku1ws
mandos-ctl: Refactor

* mandos-ctl (commands_and_clients_from_options): Make args to parse
                                                  overrideable.

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mandos-ctl
 
1
#!/usr/bin/python
 
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
# Mandos Monitor - Control and monitor the Mandos server
 
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
 
13
# the Free Software Foundation, either version 3 of the License, or
 
14
# (at your option) any later version.
 
15
#
 
16
#     Mandos is distributed in the hope that it will be useful, but
 
17
#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
18
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
19
#     GNU General Public License for more details.
 
20
#
 
21
# You should have received a copy of the GNU General Public License
 
22
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
23
#
 
24
# Contact the authors at <mandos@recompile.se>.
 
25
#
 
26
 
 
27
from __future__ import (division, absolute_import, print_function,
 
28
                        unicode_literals)
 
29
 
 
30
try:
 
31
    from future_builtins import *
 
32
except ImportError:
 
33
    pass
 
34
 
 
35
import sys
 
36
import argparse
 
37
import locale
 
38
import datetime
 
39
import re
 
40
import os
 
41
import collections
 
42
import json
 
43
import unittest
 
44
import logging
 
45
 
 
46
import dbus
 
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
 
 
59
if sys.version_info.major == 2:
 
60
    str = unicode
 
61
 
 
62
locale.setlocale(locale.LC_ALL, "")
 
63
 
 
64
domain = "se.recompile"
 
65
busname = domain + ".Mandos"
 
66
server_path = "/"
 
67
server_interface = domain + ".Mandos"
 
68
client_interface = domain + ".Mandos.Client"
 
69
version = "1.8.3"
 
70
 
 
71
 
 
72
try:
 
73
    dbus.OBJECT_MANAGER_IFACE
 
74
except AttributeError:
 
75
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
76
 
 
77
 
 
78
def milliseconds_to_string(ms):
 
79
    td = datetime.timedelta(0, 0, 0, ms)
 
80
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
 
81
            .format(days="{}T".format(td.days) if td.days else "",
 
82
                    hours=td.seconds // 3600,
 
83
                    minutes=(td.seconds % 3600) // 60,
 
84
                    seconds=td.seconds % 60))
 
85
 
 
86
 
 
87
def rfc3339_duration_to_delta(duration):
 
88
    """Parse an RFC 3339 "duration" and return a datetime.timedelta
 
89
 
 
90
    >>> rfc3339_duration_to_delta("P7D")
 
91
    datetime.timedelta(7)
 
92
    >>> rfc3339_duration_to_delta("PT60S")
 
93
    datetime.timedelta(0, 60)
 
94
    >>> rfc3339_duration_to_delta("PT60M")
 
95
    datetime.timedelta(0, 3600)
 
96
    >>> rfc3339_duration_to_delta("P60M")
 
97
    datetime.timedelta(1680)
 
98
    >>> rfc3339_duration_to_delta("PT24H")
 
99
    datetime.timedelta(1)
 
100
    >>> rfc3339_duration_to_delta("P1W")
 
101
    datetime.timedelta(7)
 
102
    >>> rfc3339_duration_to_delta("PT5M30S")
 
103
    datetime.timedelta(0, 330)
 
104
    >>> rfc3339_duration_to_delta("P1DT3M20S")
 
105
    datetime.timedelta(1, 200)
 
106
    >>> # Can not be empty:
 
107
    >>> rfc3339_duration_to_delta("")
 
108
    Traceback (most recent call last):
 
109
    ...
 
110
    ValueError: Invalid RFC 3339 duration: u''
 
111
    >>> # Must start with "P":
 
112
    >>> rfc3339_duration_to_delta("1D")
 
113
    Traceback (most recent call last):
 
114
    ...
 
115
    ValueError: Invalid RFC 3339 duration: u'1D'
 
116
    >>> # Must use correct order
 
117
    >>> rfc3339_duration_to_delta("PT1S2M")
 
118
    Traceback (most recent call last):
 
119
    ...
 
120
    ValueError: Invalid RFC 3339 duration: u'PT1S2M'
 
121
    >>> # Time needs time marker
 
122
    >>> rfc3339_duration_to_delta("P1H2S")
 
123
    Traceback (most recent call last):
 
124
    ...
 
125
    ValueError: Invalid RFC 3339 duration: u'P1H2S'
 
126
    >>> # Weeks can not be combined with anything else
 
127
    >>> rfc3339_duration_to_delta("P1D2W")
 
128
    Traceback (most recent call last):
 
129
    ...
 
130
    ValueError: Invalid RFC 3339 duration: u'P1D2W'
 
131
    >>> rfc3339_duration_to_delta("P2W2H")
 
132
    Traceback (most recent call last):
 
133
    ...
 
134
    ValueError: Invalid RFC 3339 duration: u'P2W2H'
 
135
    """
 
136
 
 
137
    # Parsing an RFC 3339 duration with regular expressions is not
 
138
    # possible - there would have to be multiple places for the same
 
139
    # values, like seconds.  The current code, while more esoteric, is
 
140
    # cleaner without depending on a parsing library.  If Python had a
 
141
    # built-in library for parsing we would use it, but we'd like to
 
142
    # avoid excessive use of external libraries.
 
143
 
 
144
    # New type for defining tokens, syntax, and semantics all-in-one
 
145
    Token = collections.namedtuple("Token", (
 
146
        "regexp",  # To match token; if "value" is not None, must have
 
147
                   # a "group" containing digits
 
148
        "value",   # datetime.timedelta or None
 
149
        "followers"))           # Tokens valid after this token
 
150
    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
 
151
    # the "duration" ABNF definition in RFC 3339, Appendix A.
 
152
    token_end = Token(re.compile(r"$"), None, frozenset())
 
153
    token_second = Token(re.compile(r"(\d+)S"),
 
154
                         datetime.timedelta(seconds=1),
 
155
                         frozenset((token_end, )))
 
156
    token_minute = Token(re.compile(r"(\d+)M"),
 
157
                         datetime.timedelta(minutes=1),
 
158
                         frozenset((token_second, token_end)))
 
159
    token_hour = Token(re.compile(r"(\d+)H"),
 
160
                       datetime.timedelta(hours=1),
 
161
                       frozenset((token_minute, token_end)))
 
162
    token_time = Token(re.compile(r"T"),
 
163
                       None,
 
164
                       frozenset((token_hour, token_minute,
 
165
                                  token_second)))
 
166
    token_day = Token(re.compile(r"(\d+)D"),
 
167
                      datetime.timedelta(days=1),
 
168
                      frozenset((token_time, token_end)))
 
169
    token_month = Token(re.compile(r"(\d+)M"),
 
170
                        datetime.timedelta(weeks=4),
 
171
                        frozenset((token_day, token_end)))
 
172
    token_year = Token(re.compile(r"(\d+)Y"),
 
173
                       datetime.timedelta(weeks=52),
 
174
                       frozenset((token_month, token_end)))
 
175
    token_week = Token(re.compile(r"(\d+)W"),
 
176
                       datetime.timedelta(weeks=1),
 
177
                       frozenset((token_end, )))
 
178
    token_duration = Token(re.compile(r"P"), None,
 
179
                           frozenset((token_year, token_month,
 
180
                                      token_day, token_time,
 
181
                                      token_week)))
 
182
    # Define starting values:
 
183
    # Value so far
 
184
    value = datetime.timedelta()
 
185
    found_token = None
 
186
    # Following valid tokens
 
187
    followers = frozenset((token_duration, ))
 
188
    # String left to parse
 
189
    s = duration
 
190
    # Loop until end token is found
 
191
    while found_token is not token_end:
 
192
        # Search for any currently valid tokens
 
193
        for token in followers:
 
194
            match = token.regexp.match(s)
 
195
            if match is not None:
 
196
                # Token found
 
197
                if token.value is not None:
 
198
                    # Value found, parse digits
 
199
                    factor = int(match.group(1), 10)
 
200
                    # Add to value so far
 
201
                    value += factor * token.value
 
202
                # Strip token from string
 
203
                s = token.regexp.sub("", s, 1)
 
204
                # Go to found token
 
205
                found_token = token
 
206
                # Set valid next tokens
 
207
                followers = found_token.followers
 
208
                break
 
209
        else:
 
210
            # No currently valid tokens were found
 
211
            raise ValueError("Invalid RFC 3339 duration: {!r}"
 
212
                             .format(duration))
 
213
    # End token found
 
214
    return value
 
215
 
 
216
 
 
217
def string_to_delta(interval):
 
218
    """Parse a string and return a datetime.timedelta"""
 
219
 
 
220
    try:
 
221
        return rfc3339_duration_to_delta(interval)
 
222
    except ValueError as e:
 
223
        log.warning("%s - Parsing as pre-1.6.1 interval instead",
 
224
                    ' '.join(e.args))
 
225
    return parse_pre_1_6_1_interval(interval)
 
226
 
 
227
 
 
228
def parse_pre_1_6_1_interval(interval):
 
229
    """Parse an interval string as documented by Mandos before 1.6.1,
 
230
    and return a datetime.timedelta
 
231
 
 
232
    >>> parse_pre_1_6_1_interval('7d')
 
233
    datetime.timedelta(7)
 
234
    >>> parse_pre_1_6_1_interval('60s')
 
235
    datetime.timedelta(0, 60)
 
236
    >>> parse_pre_1_6_1_interval('60m')
 
237
    datetime.timedelta(0, 3600)
 
238
    >>> parse_pre_1_6_1_interval('24h')
 
239
    datetime.timedelta(1)
 
240
    >>> parse_pre_1_6_1_interval('1w')
 
241
    datetime.timedelta(7)
 
242
    >>> parse_pre_1_6_1_interval('5m 30s')
 
243
    datetime.timedelta(0, 330)
 
244
    >>> parse_pre_1_6_1_interval('')
 
245
    datetime.timedelta(0)
 
246
    >>> # Ignore unknown characters, allow any order and repetitions
 
247
    >>> parse_pre_1_6_1_interval('2dxy7zz11y3m5m')
 
248
    datetime.timedelta(2, 480, 18000)
 
249
 
 
250
    """
 
251
 
 
252
    value = datetime.timedelta(0)
 
253
    regexp = re.compile(r"(\d+)([dsmhw]?)")
 
254
 
 
255
    for num, suffix in regexp.findall(interval):
 
256
        if suffix == "d":
 
257
            value += datetime.timedelta(int(num))
 
258
        elif suffix == "s":
 
259
            value += datetime.timedelta(0, int(num))
 
260
        elif suffix == "m":
 
261
            value += datetime.timedelta(0, 0, 0, 0, int(num))
 
262
        elif suffix == "h":
 
263
            value += datetime.timedelta(0, 0, 0, 0, 0, int(num))
 
264
        elif suffix == "w":
 
265
            value += datetime.timedelta(0, 0, 0, 0, 0, 0, int(num))
 
266
        elif suffix == "":
 
267
            value += datetime.timedelta(0, 0, 0, int(num))
 
268
    return value
 
269
 
 
270
 
 
271
class TableOfClients(object):
 
272
    tableheaders = {
 
273
        "Name": "Name",
 
274
        "Enabled": "Enabled",
 
275
        "Timeout": "Timeout",
 
276
        "LastCheckedOK": "Last Successful Check",
 
277
        "LastApprovalRequest": "Last Approval Request",
 
278
        "Created": "Created",
 
279
        "Interval": "Interval",
 
280
        "Host": "Host",
 
281
        "Fingerprint": "Fingerprint",
 
282
        "KeyID": "Key ID",
 
283
        "CheckerRunning": "Check Is Running",
 
284
        "LastEnabled": "Last Enabled",
 
285
        "ApprovalPending": "Approval Is Pending",
 
286
        "ApprovedByDefault": "Approved By Default",
 
287
        "ApprovalDelay": "Approval Delay",
 
288
        "ApprovalDuration": "Approval Duration",
 
289
        "Checker": "Checker",
 
290
        "ExtendedTimeout": "Extended Timeout",
 
291
        "Expires": "Expires",
 
292
        "LastCheckerStatus": "Last Checker Status",
 
293
    }
 
294
 
 
295
    def __init__(self, clients, keywords, tableheaders=None):
 
296
        self.clients = clients
 
297
        self.keywords = keywords
 
298
        if tableheaders is not None:
 
299
            self.tableheaders = tableheaders
 
300
 
 
301
    def __str__(self):
 
302
        return "\n".join(self.rows())
 
303
 
 
304
    if sys.version_info.major == 2:
 
305
        __unicode__ = __str__
 
306
        def __str__(self):
 
307
            return str(self).encode(locale.getpreferredencoding())
 
308
 
 
309
    def rows(self):
 
310
        format_string = self.row_formatting_string()
 
311
        rows = [self.header_line(format_string)]
 
312
        rows.extend(self.client_line(client, format_string)
 
313
                    for client in self.clients)
 
314
        return rows
 
315
 
 
316
    def row_formatting_string(self):
 
317
        "Format string used to format table rows"
 
318
        return " ".join("{{{key}:{width}}}".format(
 
319
            width=max(len(self.tableheaders[key]),
 
320
                      *(len(self.string_from_client(client, key))
 
321
                        for client in self.clients)),
 
322
            key=key)
 
323
                        for key in self.keywords)
 
324
 
 
325
    def string_from_client(self, client, key):
 
326
        return self.valuetostring(client[key], key)
 
327
 
 
328
    @staticmethod
 
329
    def valuetostring(value, keyword):
 
330
        if isinstance(value, dbus.Boolean):
 
331
            return "Yes" if value else "No"
 
332
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
 
333
                       "ApprovalDuration", "ExtendedTimeout"):
 
334
            return milliseconds_to_string(value)
 
335
        return str(value)
 
336
 
 
337
    def header_line(self, format_string):
 
338
        return format_string.format(**self.tableheaders)
 
339
 
 
340
    def client_line(self, client, format_string):
 
341
        return format_string.format(
 
342
            **{key: self.string_from_client(client, key)
 
343
               for key in self.keywords})
 
344
 
 
345
 
 
346
## Classes for commands.
 
347
 
 
348
# Abstract classes first
 
349
class Command(object):
 
350
    """Abstract class for commands"""
 
351
    def run(self, mandos, clients):
 
352
        """Normal commands should implement run_on_one_client(), but
 
353
        commands which want to operate on all clients at the same time
 
354
        can override this run() method instead."""
 
355
        self.mandos = mandos
 
356
        for client in clients:
 
357
            self.run_on_one_client(client)
 
358
 
 
359
class PrintCmd(Command):
 
360
    """Abstract class for commands printing client details"""
 
361
    all_keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
 
362
                    "Created", "Interval", "Host", "KeyID",
 
363
                    "Fingerprint", "CheckerRunning", "LastEnabled",
 
364
                    "ApprovalPending", "ApprovedByDefault",
 
365
                    "LastApprovalRequest", "ApprovalDelay",
 
366
                    "ApprovalDuration", "Checker", "ExtendedTimeout",
 
367
                    "Expires", "LastCheckerStatus")
 
368
    def run(self, mandos, clients):
 
369
        print(self.output(clients))
 
370
 
 
371
class PropertyCmd(Command):
 
372
    """Abstract class for Actions for setting one client property"""
 
373
    def run_on_one_client(self, client):
 
374
        """Set the Client's D-Bus property"""
 
375
        client.Set(client_interface, self.property, self.value_to_set,
 
376
                   dbus_interface=dbus.PROPERTIES_IFACE)
 
377
 
 
378
class ValueArgumentMixIn(object):
 
379
    """Mixin class for commands taking a value as argument"""
 
380
    def __init__(self, value):
 
381
        self.value_to_set = value
 
382
 
 
383
class MillisecondsValueArgumentMixIn(ValueArgumentMixIn):
 
384
    """Mixin class for commands taking a value argument as
 
385
    milliseconds."""
 
386
    @property
 
387
    def value_to_set(self):
 
388
        return self._vts
 
389
    @value_to_set.setter
 
390
    def value_to_set(self, value):
 
391
        """When setting, convert value to a datetime.timedelta"""
 
392
        self._vts = string_to_delta(value).total_seconds() * 1000
 
393
 
 
394
# Actual (non-abstract) command classes
 
395
 
 
396
class PrintTableCmd(PrintCmd):
 
397
    def __init__(self, verbose=False):
 
398
        self.verbose = verbose
 
399
    def output(self, clients):
 
400
        if self.verbose:
 
401
            keywords = self.all_keywords
 
402
        else:
 
403
            keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
 
404
        return str(TableOfClients(clients.values(), keywords))
 
405
 
 
406
class DumpJSONCmd(PrintCmd):
 
407
    def output(self, clients):
 
408
        data = {client["Name"]:
 
409
                {key: self.dbus_boolean_to_bool(client[key])
 
410
                 for key in self.all_keywords}
 
411
                for client in clients.values()}
 
412
        return json.dumps(data, indent=4, separators=(',', ': '))
 
413
    @staticmethod
 
414
    def dbus_boolean_to_bool(value):
 
415
        if isinstance(value, dbus.Boolean):
 
416
            value = bool(value)
 
417
        return value
 
418
 
 
419
class IsEnabledCmd(Command):
 
420
    def run_on_one_client(self, client):
 
421
        if self.is_enabled(client):
 
422
            sys.exit(0)
 
423
        sys.exit(1)
 
424
    def is_enabled(self, client):
 
425
        return client.Get(client_interface, "Enabled",
 
426
                          dbus_interface=dbus.PROPERTIES_IFACE)
 
427
 
 
428
class RemoveCmd(Command):
 
429
    def run_on_one_client(self, client):
 
430
        self.mandos.RemoveClient(client.__dbus_object_path__)
 
431
 
 
432
class ApproveCmd(Command):
 
433
    def run_on_one_client(self, client):
 
434
        client.Approve(dbus.Boolean(True),
 
435
                       dbus_interface=client_interface)
 
436
 
 
437
class DenyCmd(Command):
 
438
    def run_on_one_client(self, client):
 
439
        client.Approve(dbus.Boolean(False),
 
440
                       dbus_interface=client_interface)
 
441
 
 
442
class EnableCmd(PropertyCmd):
 
443
    property = "Enabled"
 
444
    value_to_set = dbus.Boolean(True)
 
445
 
 
446
class DisableCmd(PropertyCmd):
 
447
    property = "Enabled"
 
448
    value_to_set = dbus.Boolean(False)
 
449
 
 
450
class BumpTimeoutCmd(PropertyCmd):
 
451
    property = "LastCheckedOK"
 
452
    value_to_set = ""
 
453
 
 
454
class StartCheckerCmd(PropertyCmd):
 
455
    property = "CheckerRunning"
 
456
    value_to_set = dbus.Boolean(True)
 
457
 
 
458
class StopCheckerCmd(PropertyCmd):
 
459
    property = "CheckerRunning"
 
460
    value_to_set = dbus.Boolean(False)
 
461
 
 
462
class ApproveByDefaultCmd(PropertyCmd):
 
463
    property = "ApprovedByDefault"
 
464
    value_to_set = dbus.Boolean(True)
 
465
 
 
466
class DenyByDefaultCmd(PropertyCmd):
 
467
    property = "ApprovedByDefault"
 
468
    value_to_set = dbus.Boolean(False)
 
469
 
 
470
class SetCheckerCmd(PropertyCmd, ValueArgumentMixIn):
 
471
    property = "Checker"
 
472
 
 
473
class SetHostCmd(PropertyCmd, ValueArgumentMixIn):
 
474
    property = "Host"
 
475
 
 
476
class SetSecretCmd(PropertyCmd, ValueArgumentMixIn):
 
477
    property = "Secret"
 
478
 
 
479
class SetTimeoutCmd(PropertyCmd, MillisecondsValueArgumentMixIn):
 
480
    property = "Timeout"
 
481
 
 
482
class SetExtendedTimeoutCmd(PropertyCmd,
 
483
                            MillisecondsValueArgumentMixIn):
 
484
    property = "ExtendedTimeout"
 
485
 
 
486
class SetIntervalCmd(PropertyCmd, MillisecondsValueArgumentMixIn):
 
487
    property = "Interval"
 
488
 
 
489
class SetApprovalDelayCmd(PropertyCmd,
 
490
                          MillisecondsValueArgumentMixIn):
 
491
    property = "ApprovalDelay"
 
492
 
 
493
class SetApprovalDurationCmd(PropertyCmd,
 
494
                             MillisecondsValueArgumentMixIn):
 
495
    property = "ApprovalDuration"
 
496
 
 
497
def has_actions(options):
 
498
    return any((options.enable,
 
499
                options.disable,
 
500
                options.bump_timeout,
 
501
                options.start_checker,
 
502
                options.stop_checker,
 
503
                options.is_enabled,
 
504
                options.remove,
 
505
                options.checker is not None,
 
506
                options.timeout is not None,
 
507
                options.extended_timeout is not None,
 
508
                options.interval is not None,
 
509
                options.approved_by_default is not None,
 
510
                options.approval_delay is not None,
 
511
                options.approval_duration is not None,
 
512
                options.host is not None,
 
513
                options.secret is not None,
 
514
                options.approve,
 
515
                options.deny))
 
516
 
 
517
 
 
518
def commands_and_clients_from_options(args=None):
 
519
    if args is None:
 
520
        args=sys.argv[1:]
 
521
    parser = argparse.ArgumentParser()
 
522
    parser.add_argument("--version", action="version",
 
523
                        version="%(prog)s {}".format(version),
 
524
                        help="show version number and exit")
 
525
    parser.add_argument("-a", "--all", action="store_true",
 
526
                        help="Select all clients")
 
527
    parser.add_argument("-v", "--verbose", action="store_true",
 
528
                        help="Print all fields")
 
529
    parser.add_argument("-j", "--dump-json", action="store_true",
 
530
                        help="Dump client data in JSON format")
 
531
    enable_disable = parser.add_mutually_exclusive_group()
 
532
    enable_disable.add_argument("-e", "--enable", action="store_true",
 
533
                                help="Enable client")
 
534
    enable_disable.add_argument("-d", "--disable",
 
535
                                action="store_true",
 
536
                                help="disable client")
 
537
    parser.add_argument("-b", "--bump-timeout", action="store_true",
 
538
                        help="Bump timeout for client")
 
539
    start_stop_checker = parser.add_mutually_exclusive_group()
 
540
    start_stop_checker.add_argument("--start-checker",
 
541
                                    action="store_true",
 
542
                                    help="Start checker for client")
 
543
    start_stop_checker.add_argument("--stop-checker",
 
544
                                    action="store_true",
 
545
                                    help="Stop checker for client")
 
546
    parser.add_argument("-V", "--is-enabled", action="store_true",
 
547
                        help="Check if client is enabled")
 
548
    parser.add_argument("-r", "--remove", action="store_true",
 
549
                        help="Remove client")
 
550
    parser.add_argument("-c", "--checker",
 
551
                        help="Set checker command for client")
 
552
    parser.add_argument("-t", "--timeout",
 
553
                        help="Set timeout for client")
 
554
    parser.add_argument("--extended-timeout",
 
555
                        help="Set extended timeout for client")
 
556
    parser.add_argument("-i", "--interval",
 
557
                        help="Set checker interval for client")
 
558
    approve_deny_default = parser.add_mutually_exclusive_group()
 
559
    approve_deny_default.add_argument(
 
560
        "--approve-by-default", action="store_true",
 
561
        default=None, dest="approved_by_default",
 
562
        help="Set client to be approved by default")
 
563
    approve_deny_default.add_argument(
 
564
        "--deny-by-default", action="store_false",
 
565
        dest="approved_by_default",
 
566
        help="Set client to be denied by default")
 
567
    parser.add_argument("--approval-delay",
 
568
                        help="Set delay before client approve/deny")
 
569
    parser.add_argument("--approval-duration",
 
570
                        help="Set duration of one client approval")
 
571
    parser.add_argument("-H", "--host", help="Set host for client")
 
572
    parser.add_argument("-s", "--secret",
 
573
                        type=argparse.FileType(mode="rb"),
 
574
                        help="Set password blob (file) for client")
 
575
    approve_deny = parser.add_mutually_exclusive_group()
 
576
    approve_deny.add_argument(
 
577
        "-A", "--approve", action="store_true",
 
578
        help="Approve any current client request")
 
579
    approve_deny.add_argument("-D", "--deny", action="store_true",
 
580
                              help="Deny any current client request")
 
581
    parser.add_argument("--check", action="store_true",
 
582
                        help="Run self-test")
 
583
    parser.add_argument("client", nargs="*", help="Client name")
 
584
    options = parser.parse_args(args=args)
 
585
 
 
586
    if has_actions(options) and not (options.client or options.all):
 
587
        parser.error("Options require clients names or --all.")
 
588
    if options.verbose and has_actions(options):
 
589
        parser.error("--verbose can only be used alone.")
 
590
    if options.dump_json and (options.verbose
 
591
                              or has_actions(options)):
 
592
        parser.error("--dump-json can only be used alone.")
 
593
    if options.all and not has_actions(options):
 
594
        parser.error("--all requires an action.")
 
595
    if options.is_enabled and len(options.client) > 1:
 
596
            parser.error("--is-enabled requires exactly one client")
 
597
 
 
598
    commands = []
 
599
 
 
600
    if options.dump_json:
 
601
        commands.append(DumpJSONCmd())
 
602
 
 
603
    if options.enable:
 
604
        commands.append(EnableCmd())
 
605
 
 
606
    if options.disable:
 
607
        commands.append(DisableCmd())
 
608
 
 
609
    if options.bump_timeout:
 
610
        commands.append(BumpTimeoutCmd(options.bump_timeout))
 
611
 
 
612
    if options.start_checker:
 
613
        commands.append(StartCheckerCmd())
 
614
 
 
615
    if options.stop_checker:
 
616
        commands.append(StopCheckerCmd())
 
617
 
 
618
    if options.is_enabled:
 
619
        commands.append(IsEnabledCmd())
 
620
 
 
621
    if options.remove:
 
622
        commands.append(RemoveCmd())
 
623
 
 
624
    if options.checker is not None:
 
625
        commands.append(SetCheckerCmd())
 
626
 
 
627
    if options.timeout is not None:
 
628
        commands.append(SetTimeoutCmd(options.timeout))
 
629
 
 
630
    if options.extended_timeout:
 
631
        commands.append(
 
632
            SetExtendedTimeoutCmd(options.extended_timeout))
 
633
 
 
634
    if options.interval is not None:
 
635
        command.append(SetIntervalCmd(options.interval))
 
636
 
 
637
    if options.approved_by_default is not None:
 
638
        if options.approved_by_default:
 
639
            command.append(ApproveByDefaultCmd())
 
640
        else:
 
641
            command.append(DenyByDefaultCmd())
 
642
 
 
643
    if options.approval_delay is not None:
 
644
        command.append(SetApprovalDelayCmd(options.approval_delay))
 
645
 
 
646
    if options.approval_duration is not None:
 
647
        command.append(
 
648
            SetApprovalDurationCmd(options.approval_duration))
 
649
 
 
650
    if options.host is not None:
 
651
        command.append(SetHostCmd(options.host))
 
652
 
 
653
    if options.secret is not None:
 
654
        command.append(SetSecretCmd(options.secret))
 
655
 
 
656
    if options.approve:
 
657
        commands.append(ApproveCmd())
 
658
 
 
659
    if options.deny:
 
660
        commands.append(DenyCmd())
 
661
 
 
662
    # If no command option has been given, show table of clients,
 
663
    # optionally verbosely
 
664
    if not commands:
 
665
        commands.append(PrintTableCmd(verbose=options.verbose))
 
666
 
 
667
    return commands, options.client
 
668
 
 
669
 
 
670
def main():
 
671
    commands, clientnames = commands_and_clients_from_options()
 
672
 
 
673
    try:
 
674
        bus = dbus.SystemBus()
 
675
        mandos_dbus_objc = bus.get_object(busname, server_path)
 
676
    except dbus.exceptions.DBusException:
 
677
        log.critical("Could not connect to Mandos server")
 
678
        sys.exit(1)
 
679
 
 
680
    mandos_serv = dbus.Interface(mandos_dbus_objc,
 
681
                                 dbus_interface=server_interface)
 
682
    mandos_serv_object_manager = dbus.Interface(
 
683
        mandos_dbus_objc, dbus_interface=dbus.OBJECT_MANAGER_IFACE)
 
684
 
 
685
    # Filter out log message from dbus module
 
686
    dbus_logger = logging.getLogger("dbus.proxies")
 
687
    class NullFilter(logging.Filter):
 
688
        def filter(self, record):
 
689
            return False
 
690
    dbus_filter = NullFilter()
 
691
    dbus_logger.addFilter(dbus_filter)
 
692
    try:
 
693
        try:
 
694
            mandos_clients = {path: ifs_and_props[client_interface]
 
695
                              for path, ifs_and_props in
 
696
                              mandos_serv_object_manager
 
697
                              .GetManagedObjects().items()
 
698
                              if client_interface in ifs_and_props}
 
699
        finally:
 
700
            # restore dbus logger
 
701
            dbus_logger.removeFilter(dbus_filter)
 
702
    except dbus.exceptions.DBusException as e:
 
703
        log.critical("Failed to access Mandos server through D-Bus:"
 
704
                     "\n%s", e)
 
705
        sys.exit(1)
 
706
 
 
707
    # Compile dict of (clients: properties) to process
 
708
    clients = {}
 
709
 
 
710
    if not clientnames:
 
711
        clients = {bus.get_object(busname, path): properties
 
712
                   for path, properties in mandos_clients.items()}
 
713
    else:
 
714
        for name in clientnames:
 
715
            for path, client in mandos_clients.items():
 
716
                if client["Name"] == name:
 
717
                    client_objc = bus.get_object(busname, path)
 
718
                    clients[client_objc] = client
 
719
                    break
 
720
            else:
 
721
                log.critical("Client not found on server: %r", name)
 
722
                sys.exit(1)
 
723
 
 
724
    # Run all commands on clients
 
725
    for command in commands:
 
726
        command.run(mandos_serv, clients)
 
727
 
 
728
 
 
729
class Test_milliseconds_to_string(unittest.TestCase):
 
730
    def test_all(self):
 
731
        self.assertEqual(milliseconds_to_string(93785000),
 
732
                         "1T02:03:05")
 
733
    def test_no_days(self):
 
734
        self.assertEqual(milliseconds_to_string(7385000), "02:03:05")
 
735
    def test_all_zero(self):
 
736
        self.assertEqual(milliseconds_to_string(0), "00:00:00")
 
737
    def test_no_fractional_seconds(self):
 
738
        self.assertEqual(milliseconds_to_string(400), "00:00:00")
 
739
        self.assertEqual(milliseconds_to_string(900), "00:00:00")
 
740
        self.assertEqual(milliseconds_to_string(1900), "00:00:01")
 
741
 
 
742
class Test_string_to_delta(unittest.TestCase):
 
743
    def test_handles_basic_rfc3339(self):
 
744
        self.assertEqual(string_to_delta("PT2H"),
 
745
                         datetime.timedelta(0, 7200))
 
746
    def test_falls_back_to_pre_1_6_1_with_warning(self):
 
747
        # assertLogs only exists in Python 3.4
 
748
        if hasattr(self, "assertLogs"):
 
749
            with self.assertLogs(log, logging.WARNING):
 
750
                value = string_to_delta("2h")
 
751
        else:
 
752
            class WarningFilter(logging.Filter):
 
753
                """Don't show, but record the presence of, warnings"""
 
754
                def filter(self, record):
 
755
                    is_warning = record.levelno >= logging.WARNING
 
756
                    self.found = is_warning or getattr(self, "found",
 
757
                                                       False)
 
758
                    return not is_warning
 
759
            warning_filter = WarningFilter()
 
760
            log.addFilter(warning_filter)
 
761
            try:
 
762
                value = string_to_delta("2h")
 
763
            finally:
 
764
                log.removeFilter(warning_filter)
 
765
            self.assertTrue(getattr(warning_filter, "found", False))
 
766
        self.assertEqual(value, datetime.timedelta(0, 7200))
 
767
 
 
768
class Test_TableOfClients(unittest.TestCase):
 
769
    def setUp(self):
 
770
        self.tableheaders = {
 
771
            "Attr1": "X",
 
772
            "AttrTwo": "Yy",
 
773
            "AttrThree": "Zzz",
 
774
            "Bool": "A D-BUS Boolean",
 
775
            "NonDbusBoolean": "A Non-D-BUS Boolean",
 
776
            "Integer": "An Integer",
 
777
            "Timeout": "Timedelta 1",
 
778
            "Interval": "Timedelta 2",
 
779
            "ApprovalDelay": "Timedelta 3",
 
780
            "ApprovalDuration": "Timedelta 4",
 
781
            "ExtendedTimeout": "Timedelta 5",
 
782
            "String": "A String",
 
783
        }
 
784
        self.keywords = ["Attr1", "AttrTwo"]
 
785
        self.clients = [
 
786
            {
 
787
                "Attr1": "x1",
 
788
                "AttrTwo": "y1",
 
789
                "AttrThree": "z1",
 
790
                "Bool": dbus.Boolean(False),
 
791
                "NonDbusBoolean": False,
 
792
                "Integer": 0,
 
793
                "Timeout": 0,
 
794
                "Interval": 1000,
 
795
                "ApprovalDelay": 2000,
 
796
                "ApprovalDuration": 3000,
 
797
                "ExtendedTimeout": 4000,
 
798
                "String": "",
 
799
            },
 
800
            {
 
801
                "Attr1": "x2",
 
802
                "AttrTwo": "y2",
 
803
                "AttrThree": "z2",
 
804
                "Bool": dbus.Boolean(True),
 
805
                "NonDbusBoolean": True,
 
806
                "Integer": 1,
 
807
                "Timeout": 93785000,
 
808
                "Interval": 93786000,
 
809
                "ApprovalDelay": 93787000,
 
810
                "ApprovalDuration": 93788000,
 
811
                "ExtendedTimeout": 93789000,
 
812
                "String": "A huge string which will not fit," * 10,
 
813
            },
 
814
        ]
 
815
    def test_short_header(self):
 
816
        text = str(TableOfClients(self.clients, self.keywords,
 
817
                                  self.tableheaders))
 
818
        expected_text = """
 
819
X  Yy
 
820
x1 y1
 
821
x2 y2
 
822
"""[1:-1]
 
823
        self.assertEqual(text, expected_text)
 
824
    def test_booleans(self):
 
825
        keywords = ["Bool", "NonDbusBoolean"]
 
826
        text = str(TableOfClients(self.clients, keywords,
 
827
                                  self.tableheaders))
 
828
        expected_text = """
 
829
A D-BUS Boolean A Non-D-BUS Boolean
 
830
No              False              
 
831
Yes             True               
 
832
"""[1:-1]
 
833
        self.assertEqual(text, expected_text)
 
834
    def test_milliseconds_detection(self):
 
835
        keywords = ["Integer", "Timeout", "Interval", "ApprovalDelay",
 
836
                    "ApprovalDuration", "ExtendedTimeout"]
 
837
        text = str(TableOfClients(self.clients, keywords,
 
838
                                  self.tableheaders))
 
839
        expected_text = """
 
840
An Integer Timedelta 1 Timedelta 2 Timedelta 3 Timedelta 4 Timedelta 5
 
841
0          00:00:00    00:00:01    00:00:02    00:00:03    00:00:04   
 
842
1          1T02:03:05  1T02:03:06  1T02:03:07  1T02:03:08  1T02:03:09 
 
843
"""[1:-1]
 
844
        self.assertEqual(text, expected_text)
 
845
    def test_empty_and_long_string_values(self):
 
846
        keywords = ["String"]
 
847
        text = str(TableOfClients(self.clients, keywords,
 
848
                                  self.tableheaders))
 
849
        expected_text = """
 
850
A String                                                                                                                                                                                                                                                                                                                                  
 
851
                                                                                                                                                                                                                                                                                                                                          
 
852
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,
 
853
"""[1:-1]
 
854
        self.assertEqual(text, expected_text)
 
855
 
 
856
 
 
857
 
 
858
def should_only_run_tests():
 
859
    parser = argparse.ArgumentParser(add_help=False)
 
860
    parser.add_argument("--check", action='store_true')
 
861
    args, unknown_args = parser.parse_known_args()
 
862
    run_tests = args.check
 
863
    if run_tests:
 
864
        # Remove --check argument from sys.argv
 
865
        sys.argv[1:] = unknown_args
 
866
    return run_tests
 
867
 
 
868
# Add all tests from doctest strings
 
869
def load_tests(loader, tests, none):
 
870
    import doctest
 
871
    tests.addTests(doctest.DocTestSuite())
 
872
    return tests
 
873
 
 
874
if __name__ == "__main__":
 
875
    if should_only_run_tests():
 
876
        # Call using ./tdd-python-script --check [--verbose]
 
877
        unittest.main()
 
878
    else:
 
879
        main()