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  • Committer: Teddy Hogeborn
  • Date: 2019-03-03 22:48:29 UTC
  • Revision ID: teddy@recompile.se-20190303224829-ra6qltynsmegom8a
mandos-ctl: Refactor

* mandos-ctl (main): Convert try...try...finally...except into one
                     try...finally...except clause.

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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
## Classes for commands.
 
272
 
 
273
# Abstract classes first
 
274
class Command(object):
 
275
    """Abstract class for commands"""
 
276
    def run(self, mandos, clients):
 
277
        """Normal commands should implement run_on_one_client(), but
 
278
        commands which want to operate on all clients at the same time
 
279
        can override this run() method instead."""
 
280
        self.mandos = mandos
 
281
        for client in clients:
 
282
            self.run_on_one_client(client)
 
283
 
 
284
class PrintCmd(Command):
 
285
    """Abstract class for commands printing client details"""
 
286
    all_keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
 
287
                    "Created", "Interval", "Host", "KeyID",
 
288
                    "Fingerprint", "CheckerRunning", "LastEnabled",
 
289
                    "ApprovalPending", "ApprovedByDefault",
 
290
                    "LastApprovalRequest", "ApprovalDelay",
 
291
                    "ApprovalDuration", "Checker", "ExtendedTimeout",
 
292
                    "Expires", "LastCheckerStatus")
 
293
    def run(self, mandos, clients):
 
294
        print(self.output(clients))
 
295
 
 
296
class PropertyCmd(Command):
 
297
    """Abstract class for Actions for setting one client property"""
 
298
    def run_on_one_client(self, client):
 
299
        """Set the Client's D-Bus property"""
 
300
        client.Set(client_interface, self.property, self.value_to_set,
 
301
                   dbus_interface=dbus.PROPERTIES_IFACE)
 
302
 
 
303
class ValueArgumentMixIn(object):
 
304
    """Mixin class for commands taking a value as argument"""
 
305
    def __init__(self, value):
 
306
        self.value_to_set = value
 
307
 
 
308
class MillisecondsValueArgumentMixIn(ValueArgumentMixIn):
 
309
    """Mixin class for commands taking a value argument as
 
310
    milliseconds."""
 
311
    @property
 
312
    def value_to_set(self):
 
313
        return self._vts
 
314
    @value_to_set.setter
 
315
    def value_to_set(self, value):
 
316
        """When setting, convert value to a datetime.timedelta"""
 
317
        self._vts = string_to_delta(value).total_seconds() * 1000
 
318
 
 
319
# Actual (non-abstract) command classes
 
320
 
 
321
class PrintTableCmd(PrintCmd):
 
322
    def __init__(self, verbose=False):
 
323
        self.verbose = verbose
 
324
 
 
325
    def output(self, clients):
 
326
        if self.verbose:
 
327
            keywords = self.all_keywords
 
328
        else:
 
329
            keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
 
330
        return str(self.TableOfClients(clients.values(), keywords))
 
331
 
 
332
    class TableOfClients(object):
 
333
        tableheaders = {
 
334
            "Name": "Name",
 
335
            "Enabled": "Enabled",
 
336
            "Timeout": "Timeout",
 
337
            "LastCheckedOK": "Last Successful Check",
 
338
            "LastApprovalRequest": "Last Approval Request",
 
339
            "Created": "Created",
 
340
            "Interval": "Interval",
 
341
            "Host": "Host",
 
342
            "Fingerprint": "Fingerprint",
 
343
            "KeyID": "Key ID",
 
344
            "CheckerRunning": "Check Is Running",
 
345
            "LastEnabled": "Last Enabled",
 
346
            "ApprovalPending": "Approval Is Pending",
 
347
            "ApprovedByDefault": "Approved By Default",
 
348
            "ApprovalDelay": "Approval Delay",
 
349
            "ApprovalDuration": "Approval Duration",
 
350
            "Checker": "Checker",
 
351
            "ExtendedTimeout": "Extended Timeout",
 
352
            "Expires": "Expires",
 
353
            "LastCheckerStatus": "Last Checker Status",
 
354
        }
 
355
 
 
356
        def __init__(self, clients, keywords, tableheaders=None):
 
357
            self.clients = clients
 
358
            self.keywords = keywords
 
359
            if tableheaders is not None:
 
360
                self.tableheaders = tableheaders
 
361
 
 
362
        def __str__(self):
 
363
            return "\n".join(self.rows())
 
364
 
 
365
        if sys.version_info.major == 2:
 
366
            __unicode__ = __str__
 
367
            def __str__(self):
 
368
                return str(self).encode(locale.getpreferredencoding())
 
369
 
 
370
        def rows(self):
 
371
            format_string = self.row_formatting_string()
 
372
            rows = [self.header_line(format_string)]
 
373
            rows.extend(self.client_line(client, format_string)
 
374
                        for client in self.clients)
 
375
            return rows
 
376
 
 
377
        def row_formatting_string(self):
 
378
            "Format string used to format table rows"
 
379
            return " ".join("{{{key}:{width}}}".format(
 
380
                width=max(len(self.tableheaders[key]),
 
381
                          *(len(self.string_from_client(client, key))
 
382
                            for client in self.clients)),
 
383
                key=key)
 
384
                            for key in self.keywords)
 
385
 
 
386
        def string_from_client(self, client, key):
 
387
            return self.valuetostring(client[key], key)
 
388
 
 
389
        @staticmethod
 
390
        def valuetostring(value, keyword):
 
391
            if isinstance(value, dbus.Boolean):
 
392
                return "Yes" if value else "No"
 
393
            if keyword in ("Timeout", "Interval", "ApprovalDelay",
 
394
                           "ApprovalDuration", "ExtendedTimeout"):
 
395
                return milliseconds_to_string(value)
 
396
            return str(value)
 
397
 
 
398
        def header_line(self, format_string):
 
399
            return format_string.format(**self.tableheaders)
 
400
 
 
401
        def client_line(self, client, format_string):
 
402
            return format_string.format(
 
403
                **{key: self.string_from_client(client, key)
 
404
                   for key in self.keywords})
 
405
 
 
406
 
 
407
 
 
408
class DumpJSONCmd(PrintCmd):
 
409
    def output(self, clients):
 
410
        data = {client["Name"]:
 
411
                {key: self.dbus_boolean_to_bool(client[key])
 
412
                 for key in self.all_keywords}
 
413
                for client in clients.values()}
 
414
        return json.dumps(data, indent=4, separators=(',', ': '))
 
415
    @staticmethod
 
416
    def dbus_boolean_to_bool(value):
 
417
        if isinstance(value, dbus.Boolean):
 
418
            value = bool(value)
 
419
        return value
 
420
 
 
421
class IsEnabledCmd(Command):
 
422
    def run_on_one_client(self, client):
 
423
        if self.is_enabled(client):
 
424
            sys.exit(0)
 
425
        sys.exit(1)
 
426
    def is_enabled(self, client):
 
427
        return client.Get(client_interface, "Enabled",
 
428
                          dbus_interface=dbus.PROPERTIES_IFACE)
 
429
 
 
430
class RemoveCmd(Command):
 
431
    def run_on_one_client(self, client):
 
432
        self.mandos.RemoveClient(client.__dbus_object_path__)
 
433
 
 
434
class ApproveCmd(Command):
 
435
    def run_on_one_client(self, client):
 
436
        client.Approve(dbus.Boolean(True),
 
437
                       dbus_interface=client_interface)
 
438
 
 
439
class DenyCmd(Command):
 
440
    def run_on_one_client(self, client):
 
441
        client.Approve(dbus.Boolean(False),
 
442
                       dbus_interface=client_interface)
 
443
 
 
444
class EnableCmd(PropertyCmd):
 
445
    property = "Enabled"
 
446
    value_to_set = dbus.Boolean(True)
 
447
 
 
448
class DisableCmd(PropertyCmd):
 
449
    property = "Enabled"
 
450
    value_to_set = dbus.Boolean(False)
 
451
 
 
452
class BumpTimeoutCmd(PropertyCmd):
 
453
    property = "LastCheckedOK"
 
454
    value_to_set = ""
 
455
 
 
456
class StartCheckerCmd(PropertyCmd):
 
457
    property = "CheckerRunning"
 
458
    value_to_set = dbus.Boolean(True)
 
459
 
 
460
class StopCheckerCmd(PropertyCmd):
 
461
    property = "CheckerRunning"
 
462
    value_to_set = dbus.Boolean(False)
 
463
 
 
464
class ApproveByDefaultCmd(PropertyCmd):
 
465
    property = "ApprovedByDefault"
 
466
    value_to_set = dbus.Boolean(True)
 
467
 
 
468
class DenyByDefaultCmd(PropertyCmd):
 
469
    property = "ApprovedByDefault"
 
470
    value_to_set = dbus.Boolean(False)
 
471
 
 
472
class SetCheckerCmd(PropertyCmd, ValueArgumentMixIn):
 
473
    property = "Checker"
 
474
 
 
475
class SetHostCmd(PropertyCmd, ValueArgumentMixIn):
 
476
    property = "Host"
 
477
 
 
478
class SetSecretCmd(PropertyCmd, ValueArgumentMixIn):
 
479
    property = "Secret"
 
480
 
 
481
class SetTimeoutCmd(PropertyCmd, MillisecondsValueArgumentMixIn):
 
482
    property = "Timeout"
 
483
 
 
484
class SetExtendedTimeoutCmd(PropertyCmd,
 
485
                            MillisecondsValueArgumentMixIn):
 
486
    property = "ExtendedTimeout"
 
487
 
 
488
class SetIntervalCmd(PropertyCmd, MillisecondsValueArgumentMixIn):
 
489
    property = "Interval"
 
490
 
 
491
class SetApprovalDelayCmd(PropertyCmd,
 
492
                          MillisecondsValueArgumentMixIn):
 
493
    property = "ApprovalDelay"
 
494
 
 
495
class SetApprovalDurationCmd(PropertyCmd,
 
496
                             MillisecondsValueArgumentMixIn):
 
497
    property = "ApprovalDuration"
 
498
 
 
499
def has_actions(options):
 
500
    return any((options.enable,
 
501
                options.disable,
 
502
                options.bump_timeout,
 
503
                options.start_checker,
 
504
                options.stop_checker,
 
505
                options.is_enabled,
 
506
                options.remove,
 
507
                options.checker is not None,
 
508
                options.timeout is not None,
 
509
                options.extended_timeout is not None,
 
510
                options.interval is not None,
 
511
                options.approved_by_default is not None,
 
512
                options.approval_delay is not None,
 
513
                options.approval_duration is not None,
 
514
                options.host is not None,
 
515
                options.secret is not None,
 
516
                options.approve,
 
517
                options.deny))
 
518
 
 
519
def add_command_line_options(parser):
 
520
    parser.add_argument("--version", action="version",
 
521
                        version="%(prog)s {}".format(version),
 
522
                        help="show version number and exit")
 
523
    parser.add_argument("-a", "--all", action="store_true",
 
524
                        help="Select all clients")
 
525
    parser.add_argument("-v", "--verbose", action="store_true",
 
526
                        help="Print all fields")
 
527
    parser.add_argument("-j", "--dump-json", action="store_true",
 
528
                        help="Dump client data in JSON format")
 
529
    enable_disable = parser.add_mutually_exclusive_group()
 
530
    enable_disable.add_argument("-e", "--enable", action="store_true",
 
531
                                help="Enable client")
 
532
    enable_disable.add_argument("-d", "--disable",
 
533
                                action="store_true",
 
534
                                help="disable client")
 
535
    parser.add_argument("-b", "--bump-timeout", action="store_true",
 
536
                        help="Bump timeout for client")
 
537
    start_stop_checker = parser.add_mutually_exclusive_group()
 
538
    start_stop_checker.add_argument("--start-checker",
 
539
                                    action="store_true",
 
540
                                    help="Start checker for client")
 
541
    start_stop_checker.add_argument("--stop-checker",
 
542
                                    action="store_true",
 
543
                                    help="Stop checker for client")
 
544
    parser.add_argument("-V", "--is-enabled", action="store_true",
 
545
                        help="Check if client is enabled")
 
546
    parser.add_argument("-r", "--remove", action="store_true",
 
547
                        help="Remove client")
 
548
    parser.add_argument("-c", "--checker",
 
549
                        help="Set checker command for client")
 
550
    parser.add_argument("-t", "--timeout",
 
551
                        help="Set timeout for client")
 
552
    parser.add_argument("--extended-timeout",
 
553
                        help="Set extended timeout for client")
 
554
    parser.add_argument("-i", "--interval",
 
555
                        help="Set checker interval for client")
 
556
    approve_deny_default = parser.add_mutually_exclusive_group()
 
557
    approve_deny_default.add_argument(
 
558
        "--approve-by-default", action="store_true",
 
559
        default=None, dest="approved_by_default",
 
560
        help="Set client to be approved by default")
 
561
    approve_deny_default.add_argument(
 
562
        "--deny-by-default", action="store_false",
 
563
        dest="approved_by_default",
 
564
        help="Set client to be denied by default")
 
565
    parser.add_argument("--approval-delay",
 
566
                        help="Set delay before client approve/deny")
 
567
    parser.add_argument("--approval-duration",
 
568
                        help="Set duration of one client approval")
 
569
    parser.add_argument("-H", "--host", help="Set host for client")
 
570
    parser.add_argument("-s", "--secret",
 
571
                        type=argparse.FileType(mode="rb"),
 
572
                        help="Set password blob (file) for client")
 
573
    approve_deny = parser.add_mutually_exclusive_group()
 
574
    approve_deny.add_argument(
 
575
        "-A", "--approve", action="store_true",
 
576
        help="Approve any current client request")
 
577
    approve_deny.add_argument("-D", "--deny", action="store_true",
 
578
                              help="Deny any current client request")
 
579
    parser.add_argument("--check", action="store_true",
 
580
                        help="Run self-test")
 
581
    parser.add_argument("client", nargs="*", help="Client name")
 
582
 
 
583
 
 
584
def commands_and_clients_from_options(options):
 
585
 
 
586
    commands = []
 
587
 
 
588
    if options.dump_json:
 
589
        commands.append(DumpJSONCmd())
 
590
 
 
591
    if options.enable:
 
592
        commands.append(EnableCmd())
 
593
 
 
594
    if options.disable:
 
595
        commands.append(DisableCmd())
 
596
 
 
597
    if options.bump_timeout:
 
598
        commands.append(BumpTimeoutCmd(options.bump_timeout))
 
599
 
 
600
    if options.start_checker:
 
601
        commands.append(StartCheckerCmd())
 
602
 
 
603
    if options.stop_checker:
 
604
        commands.append(StopCheckerCmd())
 
605
 
 
606
    if options.is_enabled:
 
607
        commands.append(IsEnabledCmd())
 
608
 
 
609
    if options.remove:
 
610
        commands.append(RemoveCmd())
 
611
 
 
612
    if options.checker is not None:
 
613
        commands.append(SetCheckerCmd())
 
614
 
 
615
    if options.timeout is not None:
 
616
        commands.append(SetTimeoutCmd(options.timeout))
 
617
 
 
618
    if options.extended_timeout:
 
619
        commands.append(
 
620
            SetExtendedTimeoutCmd(options.extended_timeout))
 
621
 
 
622
    if options.interval is not None:
 
623
        command.append(SetIntervalCmd(options.interval))
 
624
 
 
625
    if options.approved_by_default is not None:
 
626
        if options.approved_by_default:
 
627
            command.append(ApproveByDefaultCmd())
 
628
        else:
 
629
            command.append(DenyByDefaultCmd())
 
630
 
 
631
    if options.approval_delay is not None:
 
632
        command.append(SetApprovalDelayCmd(options.approval_delay))
 
633
 
 
634
    if options.approval_duration is not None:
 
635
        command.append(
 
636
            SetApprovalDurationCmd(options.approval_duration))
 
637
 
 
638
    if options.host is not None:
 
639
        command.append(SetHostCmd(options.host))
 
640
 
 
641
    if options.secret is not None:
 
642
        command.append(SetSecretCmd(options.secret))
 
643
 
 
644
    if options.approve:
 
645
        commands.append(ApproveCmd())
 
646
 
 
647
    if options.deny:
 
648
        commands.append(DenyCmd())
 
649
 
 
650
    # If no command option has been given, show table of clients,
 
651
    # optionally verbosely
 
652
    if not commands:
 
653
        commands.append(PrintTableCmd(verbose=options.verbose))
 
654
 
 
655
    return commands, options.client
 
656
 
 
657
 
 
658
def main():
 
659
    parser = argparse.ArgumentParser()
 
660
 
 
661
    add_command_line_options(parser)
 
662
 
 
663
    options = parser.parse_args()
 
664
 
 
665
    if has_actions(options) and not (options.client or options.all):
 
666
        parser.error("Options require clients names or --all.")
 
667
    if options.verbose and has_actions(options):
 
668
        parser.error("--verbose can only be used alone.")
 
669
    if options.dump_json and (options.verbose
 
670
                              or has_actions(options)):
 
671
        parser.error("--dump-json can only be used alone.")
 
672
    if options.all and not has_actions(options):
 
673
        parser.error("--all requires an action.")
 
674
    if options.is_enabled and len(options.client) > 1:
 
675
        parser.error("--is-enabled requires exactly one client")
 
676
 
 
677
    commands, clientnames = commands_and_clients_from_options(options)
 
678
 
 
679
    try:
 
680
        bus = dbus.SystemBus()
 
681
        mandos_dbus_objc = bus.get_object(busname, server_path)
 
682
    except dbus.exceptions.DBusException:
 
683
        log.critical("Could not connect to Mandos server")
 
684
        sys.exit(1)
 
685
 
 
686
    mandos_serv = dbus.Interface(mandos_dbus_objc,
 
687
                                 dbus_interface=server_interface)
 
688
    mandos_serv_object_manager = dbus.Interface(
 
689
        mandos_dbus_objc, dbus_interface=dbus.OBJECT_MANAGER_IFACE)
 
690
 
 
691
    # Filter out log message from dbus module
 
692
    dbus_logger = logging.getLogger("dbus.proxies")
 
693
    class NullFilter(logging.Filter):
 
694
        def filter(self, record):
 
695
            return False
 
696
    dbus_filter = NullFilter()
 
697
    try:
 
698
        dbus_logger.addFilter(dbus_filter)
 
699
        mandos_clients = {path: ifs_and_props[client_interface]
 
700
                          for path, ifs_and_props in
 
701
                          mandos_serv_object_manager
 
702
                          .GetManagedObjects().items()
 
703
                          if client_interface in ifs_and_props}
 
704
    except dbus.exceptions.DBusException as e:
 
705
        log.critical("Failed to access Mandos server through D-Bus:"
 
706
                     "\n%s", e)
 
707
        sys.exit(1)
 
708
    finally:
 
709
        # restore dbus logger
 
710
        dbus_logger.removeFilter(dbus_filter)
 
711
 
 
712
    # Compile dict of (clients: properties) to process
 
713
    clients = {}
 
714
 
 
715
    if not clientnames:
 
716
        clients = {bus.get_object(busname, path): properties
 
717
                   for path, properties in mandos_clients.items()}
 
718
    else:
 
719
        for name in clientnames:
 
720
            for path, client in mandos_clients.items():
 
721
                if client["Name"] == name:
 
722
                    client_objc = bus.get_object(busname, path)
 
723
                    clients[client_objc] = client
 
724
                    break
 
725
            else:
 
726
                log.critical("Client not found on server: %r", name)
 
727
                sys.exit(1)
 
728
 
 
729
    # Run all commands on clients
 
730
    for command in commands:
 
731
        command.run(mandos_serv, clients)
 
732
 
 
733
 
 
734
class Test_milliseconds_to_string(unittest.TestCase):
 
735
    def test_all(self):
 
736
        self.assertEqual(milliseconds_to_string(93785000),
 
737
                         "1T02:03:05")
 
738
    def test_no_days(self):
 
739
        self.assertEqual(milliseconds_to_string(7385000), "02:03:05")
 
740
    def test_all_zero(self):
 
741
        self.assertEqual(milliseconds_to_string(0), "00:00:00")
 
742
    def test_no_fractional_seconds(self):
 
743
        self.assertEqual(milliseconds_to_string(400), "00:00:00")
 
744
        self.assertEqual(milliseconds_to_string(900), "00:00:00")
 
745
        self.assertEqual(milliseconds_to_string(1900), "00:00:01")
 
746
 
 
747
class Test_string_to_delta(unittest.TestCase):
 
748
    def test_handles_basic_rfc3339(self):
 
749
        self.assertEqual(string_to_delta("PT2H"),
 
750
                         datetime.timedelta(0, 7200))
 
751
    def test_falls_back_to_pre_1_6_1_with_warning(self):
 
752
        # assertLogs only exists in Python 3.4
 
753
        if hasattr(self, "assertLogs"):
 
754
            with self.assertLogs(log, logging.WARNING):
 
755
                value = string_to_delta("2h")
 
756
        else:
 
757
            class WarningFilter(logging.Filter):
 
758
                """Don't show, but record the presence of, warnings"""
 
759
                def filter(self, record):
 
760
                    is_warning = record.levelno >= logging.WARNING
 
761
                    self.found = is_warning or getattr(self, "found",
 
762
                                                       False)
 
763
                    return not is_warning
 
764
            warning_filter = WarningFilter()
 
765
            log.addFilter(warning_filter)
 
766
            try:
 
767
                value = string_to_delta("2h")
 
768
            finally:
 
769
                log.removeFilter(warning_filter)
 
770
            self.assertTrue(getattr(warning_filter, "found", False))
 
771
        self.assertEqual(value, datetime.timedelta(0, 7200))
 
772
 
 
773
 
 
774
class TestCmd(unittest.TestCase):
 
775
    """Abstract class for tests of command classes"""
 
776
    def setUp(self):
 
777
        testcase = self
 
778
        class MockClient(object):
 
779
            def __init__(self, name, **attributes):
 
780
                self.__dbus_object_path__ = "objpath_{}".format(name)
 
781
                self.attributes = attributes
 
782
                self.attributes["Name"] = name
 
783
                self.calls = []
 
784
            def Set(self, interface, property, value, dbus_interface):
 
785
                testcase.assertEqual(interface, client_interface)
 
786
                testcase.assertEqual(dbus_interface,
 
787
                                     dbus.PROPERTIES_IFACE)
 
788
                self.attributes[property] = value
 
789
                self.calls.append(("Set", (interface, property, value,
 
790
                                           dbus_interface)))
 
791
            def Get(self, interface, property, dbus_interface):
 
792
                testcase.assertEqual(interface, client_interface)
 
793
                testcase.assertEqual(dbus_interface,
 
794
                                     dbus.PROPERTIES_IFACE)
 
795
                self.calls.append(("Get", (interface, property,
 
796
                                           dbus_interface)))
 
797
                return self.attributes[property]
 
798
            def __getitem__(self, key):
 
799
                return self.attributes[key]
 
800
            def __setitem__(self, key, value):
 
801
                self.attributes[key] = value
 
802
        self.clients = collections.OrderedDict([
 
803
            ("foo",
 
804
             MockClient(
 
805
                 "foo",
 
806
                 KeyID=("92ed150794387c03ce684574b1139a65"
 
807
                        "94a34f895daaaf09fd8ea90a27cddb12"),
 
808
                 Secret=b"secret",
 
809
                 Host="foo.example.org",
 
810
                 Enabled=dbus.Boolean(True),
 
811
                 Timeout=300000,
 
812
                 LastCheckedOK="2019-02-03T00:00:00",
 
813
                 Created="2019-01-02T00:00:00",
 
814
                 Interval=120000,
 
815
                 Fingerprint=("778827225BA7DE539C5A"
 
816
                              "7CFA59CFF7CDBD9A5920"),
 
817
                 CheckerRunning=dbus.Boolean(False),
 
818
                 LastEnabled="2019-01-03T00:00:00",
 
819
                 ApprovalPending=dbus.Boolean(False),
 
820
                 ApprovedByDefault=dbus.Boolean(True),
 
821
                 LastApprovalRequest="",
 
822
                 ApprovalDelay=0,
 
823
                 ApprovalDuration=1000,
 
824
                 Checker="fping -q -- %(host)s",
 
825
                 ExtendedTimeout=900000,
 
826
                 Expires="2019-02-04T00:00:00",
 
827
                 LastCheckerStatus=0)),
 
828
            ("barbar",
 
829
             MockClient(
 
830
                 "barbar",
 
831
                 KeyID=("0558568eedd67d622f5c83b35a115f79"
 
832
                        "6ab612cff5ad227247e46c2b020f441c"),
 
833
                 Secret=b"secretbar",
 
834
                 Host="192.0.2.3",
 
835
                 Enabled=dbus.Boolean(True),
 
836
                 Timeout=300000,
 
837
                 LastCheckedOK="2019-02-04T00:00:00",
 
838
                 Created="2019-01-03T00:00:00",
 
839
                 Interval=120000,
 
840
                 Fingerprint=("3E393AEAEFB84C7E89E2"
 
841
                              "F547B3A107558FCA3A27"),
 
842
                 CheckerRunning=dbus.Boolean(True),
 
843
                 LastEnabled="2019-01-04T00:00:00",
 
844
                 ApprovalPending=dbus.Boolean(False),
 
845
                 ApprovedByDefault=dbus.Boolean(False),
 
846
                 LastApprovalRequest="2019-01-03T00:00:00",
 
847
                 ApprovalDelay=30000,
 
848
                 ApprovalDuration=1000,
 
849
                 Checker=":",
 
850
                 ExtendedTimeout=900000,
 
851
                 Expires="2019-02-05T00:00:00",
 
852
                 LastCheckerStatus=-2)),
 
853
            ])
 
854
 
 
855
class TestPrintTableCmd(TestCmd):
 
856
    def test_normal(self):
 
857
        output = PrintTableCmd().output(self.clients)
 
858
        expected_output = """
 
859
Name   Enabled Timeout  Last Successful Check
 
860
foo    Yes     00:05:00 2019-02-03T00:00:00  
 
861
barbar Yes     00:05:00 2019-02-04T00:00:00  
 
862
"""[1:-1]
 
863
        self.assertEqual(output, expected_output)
 
864
    def test_verbose(self):
 
865
        output = PrintTableCmd(verbose=True).output(self.clients)
 
866
        expected_output = """
 
867
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
 
868
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                  
 
869
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                 
 
870
"""[1:-1]
 
871
        self.assertEqual(output, expected_output)
 
872
    def test_one_client(self):
 
873
        output = PrintTableCmd().output({"foo": self.clients["foo"]})
 
874
        expected_output = """
 
875
Name Enabled Timeout  Last Successful Check
 
876
foo  Yes     00:05:00 2019-02-03T00:00:00  
 
877
"""[1:-1]
 
878
        self.assertEqual(output, expected_output)
 
879
 
 
880
class TestDumpJSONCmd(TestCmd):
 
881
    def setUp(self):
 
882
        self.expected_json = {
 
883
            "foo": {
 
884
                "Name": "foo",
 
885
                "KeyID": ("92ed150794387c03ce684574b1139a65"
 
886
                          "94a34f895daaaf09fd8ea90a27cddb12"),
 
887
                "Host": "foo.example.org",
 
888
                "Enabled": True,
 
889
                "Timeout": 300000,
 
890
                "LastCheckedOK": "2019-02-03T00:00:00",
 
891
                "Created": "2019-01-02T00:00:00",
 
892
                "Interval": 120000,
 
893
                "Fingerprint": ("778827225BA7DE539C5A"
 
894
                                "7CFA59CFF7CDBD9A5920"),
 
895
                "CheckerRunning": False,
 
896
                "LastEnabled": "2019-01-03T00:00:00",
 
897
                "ApprovalPending": False,
 
898
                "ApprovedByDefault": True,
 
899
                "LastApprovalRequest": "",
 
900
                "ApprovalDelay": 0,
 
901
                "ApprovalDuration": 1000,
 
902
                "Checker": "fping -q -- %(host)s",
 
903
                "ExtendedTimeout": 900000,
 
904
                "Expires": "2019-02-04T00:00:00",
 
905
                "LastCheckerStatus": 0,
 
906
            },
 
907
            "barbar": {
 
908
                "Name": "barbar",
 
909
                "KeyID": ("0558568eedd67d622f5c83b35a115f79"
 
910
                          "6ab612cff5ad227247e46c2b020f441c"),
 
911
                "Host": "192.0.2.3",
 
912
                "Enabled": True,
 
913
                "Timeout": 300000,
 
914
                "LastCheckedOK": "2019-02-04T00:00:00",
 
915
                "Created": "2019-01-03T00:00:00",
 
916
                "Interval": 120000,
 
917
                "Fingerprint": ("3E393AEAEFB84C7E89E2"
 
918
                                "F547B3A107558FCA3A27"),
 
919
                "CheckerRunning": True,
 
920
                "LastEnabled": "2019-01-04T00:00:00",
 
921
                "ApprovalPending": False,
 
922
                "ApprovedByDefault": False,
 
923
                "LastApprovalRequest": "2019-01-03T00:00:00",
 
924
                "ApprovalDelay": 30000,
 
925
                "ApprovalDuration": 1000,
 
926
                "Checker": ":",
 
927
                "ExtendedTimeout": 900000,
 
928
                "Expires": "2019-02-05T00:00:00",
 
929
                "LastCheckerStatus": -2,
 
930
            },
 
931
        }
 
932
        return super(TestDumpJSONCmd, self).setUp()
 
933
    def test_normal(self):
 
934
        json_data = json.loads(DumpJSONCmd().output(self.clients))
 
935
        self.assertDictEqual(json_data, self.expected_json)
 
936
    def test_one_client(self):
 
937
        clients = {"foo": self.clients["foo"]}
 
938
        json_data = json.loads(DumpJSONCmd().output(clients))
 
939
        expected_json = {"foo": self.expected_json["foo"]}
 
940
        self.assertDictEqual(json_data, expected_json)
 
941
 
 
942
class TestIsEnabledCmd(TestCmd):
 
943
    def test_is_enabled(self):
 
944
        self.assertTrue(all(IsEnabledCmd().is_enabled(client)
 
945
                            for client in self.clients.values()))
 
946
    def test_is_enabled_does_get_attribute(self):
 
947
        client = self.clients["foo"]
 
948
        self.assertTrue(IsEnabledCmd().is_enabled(client))
 
949
        self.assertListEqual(client.calls,
 
950
                             [("Get",
 
951
                               ("se.recompile.Mandos.Client",
 
952
                                "Enabled",
 
953
                                "org.freedesktop.DBus.Properties"))])
 
954
    def test_is_enabled_run_exits_successfully(self):
 
955
        client = self.clients["foo"]
 
956
        with self.assertRaises(SystemExit) as e:
 
957
            IsEnabledCmd().run_on_one_client(client)
 
958
        if e.exception.code is not None:
 
959
            self.assertEqual(e.exception.code, 0)
 
960
        else:
 
961
            self.assertIsNone(e.exception.code)
 
962
    def test_is_enabled_run_exits_with_failure(self):
 
963
        client = self.clients["foo"]
 
964
        client["Enabled"] = dbus.Boolean(False)
 
965
        with self.assertRaises(SystemExit) as e:
 
966
            IsEnabledCmd().run_on_one_client(client)
 
967
        if isinstance(e.exception.code, int):
 
968
            self.assertNotEqual(e.exception.code, 0)
 
969
        else:
 
970
            self.assertIsNotNone(e.exception.code)
 
971
 
 
972
 
 
973
 
 
974
def should_only_run_tests():
 
975
    parser = argparse.ArgumentParser(add_help=False)
 
976
    parser.add_argument("--check", action='store_true')
 
977
    args, unknown_args = parser.parse_known_args()
 
978
    run_tests = args.check
 
979
    if run_tests:
 
980
        # Remove --check argument from sys.argv
 
981
        sys.argv[1:] = unknown_args
 
982
    return run_tests
 
983
 
 
984
# Add all tests from doctest strings
 
985
def load_tests(loader, tests, none):
 
986
    import doctest
 
987
    tests.addTests(doctest.DocTestSuite())
 
988
    return tests
 
989
 
 
990
if __name__ == "__main__":
 
991
    if should_only_run_tests():
 
992
        # Call using ./tdd-python-script --check [--verbose]
 
993
        unittest.main()
 
994
    else:
 
995
        main()