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        Freeing up memory during run-time.

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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, properties in clients.items():
282
 
            self.run_on_one_client(client, properties)
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, properties):
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
 
        default_keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
327
 
        keywords = default_keywords
328
 
        if self.verbose:
329
 
            keywords = self.all_keywords
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, properties):
423
 
        if self.is_enabled(client, properties):
424
 
            sys.exit(0)
425
 
        sys.exit(1)
426
 
    def is_enabled(self, client, properties):
427
 
        return bool(properties["Enabled"])
428
 
 
429
 
class RemoveCmd(Command):
430
 
    def run_on_one_client(self, client, properties):
431
 
        self.mandos.RemoveClient(client.__dbus_object_path__)
432
 
 
433
 
class ApproveCmd(Command):
434
 
    def run_on_one_client(self, client, properties):
435
 
        client.Approve(dbus.Boolean(True),
436
 
                       dbus_interface=client_interface)
437
 
 
438
 
class DenyCmd(Command):
439
 
    def run_on_one_client(self, client, properties):
440
 
        client.Approve(dbus.Boolean(False),
441
 
                       dbus_interface=client_interface)
442
 
 
443
 
class EnableCmd(PropertyCmd):
444
 
    property = "Enabled"
445
 
    value_to_set = dbus.Boolean(True)
446
 
 
447
 
class DisableCmd(PropertyCmd):
448
 
    property = "Enabled"
449
 
    value_to_set = dbus.Boolean(False)
450
 
 
451
 
class BumpTimeoutCmd(PropertyCmd):
452
 
    property = "LastCheckedOK"
453
 
    value_to_set = ""
454
 
 
455
 
class StartCheckerCmd(PropertyCmd):
456
 
    property = "CheckerRunning"
457
 
    value_to_set = dbus.Boolean(True)
458
 
 
459
 
class StopCheckerCmd(PropertyCmd):
460
 
    property = "CheckerRunning"
461
 
    value_to_set = dbus.Boolean(False)
462
 
 
463
 
class ApproveByDefaultCmd(PropertyCmd):
464
 
    property = "ApprovedByDefault"
465
 
    value_to_set = dbus.Boolean(True)
466
 
 
467
 
class DenyByDefaultCmd(PropertyCmd):
468
 
    property = "ApprovedByDefault"
469
 
    value_to_set = dbus.Boolean(False)
470
 
 
471
 
class SetCheckerCmd(PropertyCmd, ValueArgumentMixIn):
472
 
    property = "Checker"
473
 
 
474
 
class SetHostCmd(PropertyCmd, ValueArgumentMixIn):
475
 
    property = "Host"
476
 
 
477
 
class SetSecretCmd(PropertyCmd, ValueArgumentMixIn):
478
 
    property = "Secret"
479
 
 
480
 
class SetTimeoutCmd(PropertyCmd, MillisecondsValueArgumentMixIn):
481
 
    property = "Timeout"
482
 
 
483
 
class SetExtendedTimeoutCmd(PropertyCmd,
484
 
                            MillisecondsValueArgumentMixIn):
485
 
    property = "ExtendedTimeout"
486
 
 
487
 
class SetIntervalCmd(PropertyCmd, MillisecondsValueArgumentMixIn):
488
 
    property = "Interval"
489
 
 
490
 
class SetApprovalDelayCmd(PropertyCmd,
491
 
                          MillisecondsValueArgumentMixIn):
492
 
    property = "ApprovalDelay"
493
 
 
494
 
class SetApprovalDurationCmd(PropertyCmd,
495
 
                             MillisecondsValueArgumentMixIn):
496
 
    property = "ApprovalDuration"
497
 
 
498
 
def has_actions(options):
499
 
    return any((options.enable,
500
 
                options.disable,
501
 
                options.bump_timeout,
502
 
                options.start_checker,
503
 
                options.stop_checker,
504
 
                options.is_enabled,
505
 
                options.remove,
506
 
                options.checker is not None,
507
 
                options.timeout is not None,
508
 
                options.extended_timeout is not None,
509
 
                options.interval is not None,
510
 
                options.approved_by_default is not None,
511
 
                options.approval_delay is not None,
512
 
                options.approval_duration is not None,
513
 
                options.host is not None,
514
 
                options.secret is not None,
515
 
                options.approve,
516
 
                options.deny))
517
 
 
518
 
def add_command_line_options(parser):
519
 
    parser.add_argument("--version", action="version",
520
 
                        version="%(prog)s {}".format(version),
521
 
                        help="show version number and exit")
522
 
    parser.add_argument("-a", "--all", action="store_true",
523
 
                        help="Select all clients")
524
 
    parser.add_argument("-v", "--verbose", action="store_true",
525
 
                        help="Print all fields")
526
 
    parser.add_argument("-j", "--dump-json", action="store_true",
527
 
                        help="Dump client data in JSON format")
528
 
    enable_disable = parser.add_mutually_exclusive_group()
529
 
    enable_disable.add_argument("-e", "--enable", action="store_true",
530
 
                                help="Enable client")
531
 
    enable_disable.add_argument("-d", "--disable",
532
 
                                action="store_true",
533
 
                                help="disable client")
534
 
    parser.add_argument("-b", "--bump-timeout", action="store_true",
535
 
                        help="Bump timeout for client")
536
 
    start_stop_checker = parser.add_mutually_exclusive_group()
537
 
    start_stop_checker.add_argument("--start-checker",
538
 
                                    action="store_true",
539
 
                                    help="Start checker for client")
540
 
    start_stop_checker.add_argument("--stop-checker",
541
 
                                    action="store_true",
542
 
                                    help="Stop checker for client")
543
 
    parser.add_argument("-V", "--is-enabled", action="store_true",
544
 
                        help="Check if client is enabled")
545
 
    parser.add_argument("-r", "--remove", action="store_true",
546
 
                        help="Remove client")
547
 
    parser.add_argument("-c", "--checker",
548
 
                        help="Set checker command for client")
549
 
    parser.add_argument("-t", "--timeout",
550
 
                        help="Set timeout for client")
551
 
    parser.add_argument("--extended-timeout",
552
 
                        help="Set extended timeout for client")
553
 
    parser.add_argument("-i", "--interval",
554
 
                        help="Set checker interval for client")
555
 
    approve_deny_default = parser.add_mutually_exclusive_group()
556
 
    approve_deny_default.add_argument(
557
 
        "--approve-by-default", action="store_true",
558
 
        default=None, dest="approved_by_default",
559
 
        help="Set client to be approved by default")
560
 
    approve_deny_default.add_argument(
561
 
        "--deny-by-default", action="store_false",
562
 
        dest="approved_by_default",
563
 
        help="Set client to be denied by default")
564
 
    parser.add_argument("--approval-delay",
565
 
                        help="Set delay before client approve/deny")
566
 
    parser.add_argument("--approval-duration",
567
 
                        help="Set duration of one client approval")
568
 
    parser.add_argument("-H", "--host", help="Set host for client")
569
 
    parser.add_argument("-s", "--secret",
570
 
                        type=argparse.FileType(mode="rb"),
571
 
                        help="Set password blob (file) for client")
572
 
    approve_deny = parser.add_mutually_exclusive_group()
573
 
    approve_deny.add_argument(
574
 
        "-A", "--approve", action="store_true",
575
 
        help="Approve any current client request")
576
 
    approve_deny.add_argument("-D", "--deny", action="store_true",
577
 
                              help="Deny any current client request")
578
 
    parser.add_argument("--check", action="store_true",
579
 
                        help="Run self-test")
580
 
    parser.add_argument("client", nargs="*", help="Client name")
581
 
 
582
 
 
583
 
def commands_from_options(options):
584
 
 
585
 
    commands = []
586
 
 
587
 
    if options.dump_json:
588
 
        commands.append(DumpJSONCmd())
589
 
 
590
 
    if options.enable:
591
 
        commands.append(EnableCmd())
592
 
 
593
 
    if options.disable:
594
 
        commands.append(DisableCmd())
595
 
 
596
 
    if options.bump_timeout:
597
 
        commands.append(BumpTimeoutCmd())
598
 
 
599
 
    if options.start_checker:
600
 
        commands.append(StartCheckerCmd())
601
 
 
602
 
    if options.stop_checker:
603
 
        commands.append(StopCheckerCmd())
604
 
 
605
 
    if options.is_enabled:
606
 
        commands.append(IsEnabledCmd())
607
 
 
608
 
    if options.remove:
609
 
        commands.append(RemoveCmd())
610
 
 
611
 
    if options.checker is not None:
612
 
        commands.append(SetCheckerCmd())
613
 
 
614
 
    if options.timeout is not None:
615
 
        commands.append(SetTimeoutCmd(options.timeout))
616
 
 
617
 
    if options.extended_timeout:
618
 
        commands.append(
619
 
            SetExtendedTimeoutCmd(options.extended_timeout))
620
 
 
621
 
    if options.interval is not None:
622
 
        command.append(SetIntervalCmd(options.interval))
623
 
 
624
 
    if options.approved_by_default is not None:
625
 
        if options.approved_by_default:
626
 
            command.append(ApproveByDefaultCmd())
627
 
        else:
628
 
            command.append(DenyByDefaultCmd())
629
 
 
630
 
    if options.approval_delay is not None:
631
 
        command.append(SetApprovalDelayCmd(options.approval_delay))
632
 
 
633
 
    if options.approval_duration is not None:
634
 
        command.append(
635
 
            SetApprovalDurationCmd(options.approval_duration))
636
 
 
637
 
    if options.host is not None:
638
 
        command.append(SetHostCmd(options.host))
639
 
 
640
 
    if options.secret is not None:
641
 
        command.append(SetSecretCmd(options.secret))
642
 
 
643
 
    if options.approve:
644
 
        commands.append(ApproveCmd())
645
 
 
646
 
    if options.deny:
647
 
        commands.append(DenyCmd())
648
 
 
649
 
    # If no command option has been given, show table of clients,
650
 
    # optionally verbosely
651
 
    if not commands:
652
 
        commands.append(PrintTableCmd(verbose=options.verbose))
653
 
 
654
 
    return commands
655
 
 
656
 
 
657
 
def main():
658
 
    parser = argparse.ArgumentParser()
659
 
 
660
 
    add_command_line_options(parser)
661
 
 
662
 
    options = parser.parse_args()
663
 
 
664
 
    if has_actions(options) and not (options.client or options.all):
665
 
        parser.error("Options require clients names or --all.")
666
 
    if options.verbose and has_actions(options):
667
 
        parser.error("--verbose can only be used alone.")
668
 
    if options.dump_json and (options.verbose
669
 
                              or has_actions(options)):
670
 
        parser.error("--dump-json can only be used alone.")
671
 
    if options.all and not has_actions(options):
672
 
        parser.error("--all requires an action.")
673
 
    if options.is_enabled and len(options.client) > 1:
674
 
        parser.error("--is-enabled requires exactly one client")
675
 
 
676
 
    clientnames = options.client
677
 
 
678
 
    try:
679
 
        bus = dbus.SystemBus()
680
 
        mandos_dbus_objc = bus.get_object(busname, server_path)
681
 
    except dbus.exceptions.DBusException:
682
 
        log.critical("Could not connect to Mandos server")
683
 
        sys.exit(1)
684
 
 
685
 
    mandos_serv = dbus.Interface(mandos_dbus_objc,
686
 
                                 dbus_interface=server_interface)
687
 
    mandos_serv_object_manager = dbus.Interface(
688
 
        mandos_dbus_objc, dbus_interface=dbus.OBJECT_MANAGER_IFACE)
689
 
 
690
 
    # Filter out log message from dbus module
691
 
    dbus_logger = logging.getLogger("dbus.proxies")
692
 
    class NullFilter(logging.Filter):
693
 
        def filter(self, record):
694
 
            return False
695
 
    dbus_filter = NullFilter()
696
 
    try:
697
 
        dbus_logger.addFilter(dbus_filter)
698
 
        mandos_clients = {path: ifs_and_props[client_interface]
699
 
                          for path, ifs_and_props in
700
 
                          mandos_serv_object_manager
701
 
                          .GetManagedObjects().items()
702
 
                          if client_interface in ifs_and_props}
703
 
    except dbus.exceptions.DBusException as e:
704
 
        log.critical("Failed to access Mandos server through D-Bus:"
705
 
                     "\n%s", e)
706
 
        sys.exit(1)
707
 
    finally:
708
 
        # restore dbus logger
709
 
        dbus_logger.removeFilter(dbus_filter)
710
 
 
711
 
    # Compile dict of (clients: properties) to process
712
 
    clients = {}
713
 
 
714
 
    if not clientnames:
715
 
        clients = {bus.get_object(busname, path): properties
716
 
                   for path, properties in mandos_clients.items()}
717
 
    else:
718
 
        for name in clientnames:
719
 
            for path, client in mandos_clients.items():
720
 
                if client["Name"] == name:
721
 
                    client_objc = bus.get_object(busname, path)
722
 
                    clients[client_objc] = client
723
 
                    break
724
 
            else:
725
 
                log.critical("Client not found on server: %r", name)
726
 
                sys.exit(1)
727
 
 
728
 
    # Run all commands on clients
729
 
    commands = commands_from_options(options)
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 Approve(self, approve, dbus_interface):
799
 
                testcase.assertEqual(dbus_interface, client_interface)
800
 
                self.calls.append(("Approve", (approve,
801
 
                                               dbus_interface)))
802
 
        self.client = MockClient(
803
 
            "foo",
804
 
            KeyID=("92ed150794387c03ce684574b1139a65"
805
 
                   "94a34f895daaaf09fd8ea90a27cddb12"),
806
 
            Secret=b"secret",
807
 
            Host="foo.example.org",
808
 
            Enabled=dbus.Boolean(True),
809
 
            Timeout=300000,
810
 
            LastCheckedOK="2019-02-03T00:00:00",
811
 
            Created="2019-01-02T00:00:00",
812
 
            Interval=120000,
813
 
            Fingerprint=("778827225BA7DE539C5A"
814
 
                         "7CFA59CFF7CDBD9A5920"),
815
 
            CheckerRunning=dbus.Boolean(False),
816
 
            LastEnabled="2019-01-03T00:00:00",
817
 
            ApprovalPending=dbus.Boolean(False),
818
 
            ApprovedByDefault=dbus.Boolean(True),
819
 
            LastApprovalRequest="",
820
 
            ApprovalDelay=0,
821
 
            ApprovalDuration=1000,
822
 
            Checker="fping -q -- %(host)s",
823
 
            ExtendedTimeout=900000,
824
 
            Expires="2019-02-04T00:00:00",
825
 
            LastCheckerStatus=0)
826
 
        self.other_client = MockClient(
827
 
            "barbar",
828
 
            KeyID=("0558568eedd67d622f5c83b35a115f79"
829
 
                   "6ab612cff5ad227247e46c2b020f441c"),
830
 
            Secret=b"secretbar",
831
 
            Host="192.0.2.3",
832
 
            Enabled=dbus.Boolean(True),
833
 
            Timeout=300000,
834
 
            LastCheckedOK="2019-02-04T00:00:00",
835
 
            Created="2019-01-03T00:00:00",
836
 
            Interval=120000,
837
 
            Fingerprint=("3E393AEAEFB84C7E89E2"
838
 
                         "F547B3A107558FCA3A27"),
839
 
            CheckerRunning=dbus.Boolean(True),
840
 
            LastEnabled="2019-01-04T00:00:00",
841
 
            ApprovalPending=dbus.Boolean(False),
842
 
            ApprovedByDefault=dbus.Boolean(False),
843
 
            LastApprovalRequest="2019-01-03T00:00:00",
844
 
            ApprovalDelay=30000,
845
 
            ApprovalDuration=1000,
846
 
            Checker=":",
847
 
            ExtendedTimeout=900000,
848
 
            Expires="2019-02-05T00:00:00",
849
 
            LastCheckerStatus=-2)
850
 
        self.clients =  collections.OrderedDict(
851
 
            [
852
 
                (self.client, self.client.attributes),
853
 
                (self.other_client, self.other_client.attributes),
854
 
            ])
855
 
        self.one_client = {self.client: self.client.attributes}
856
 
 
857
 
class TestPrintTableCmd(TestCmd):
858
 
    def test_normal(self):
859
 
        output = PrintTableCmd().output(self.clients)
860
 
        expected_output = """
861
 
Name   Enabled Timeout  Last Successful Check
862
 
foo    Yes     00:05:00 2019-02-03T00:00:00  
863
 
barbar Yes     00:05:00 2019-02-04T00:00:00  
864
 
"""[1:-1]
865
 
        self.assertEqual(output, expected_output)
866
 
    def test_verbose(self):
867
 
        output = PrintTableCmd(verbose=True).output(self.clients)
868
 
        expected_output = """
869
 
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
870
 
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                  
871
 
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                 
872
 
"""[1:-1]
873
 
        self.assertEqual(output, expected_output)
874
 
    def test_one_client(self):
875
 
        output = PrintTableCmd().output(self.one_client)
876
 
        expected_output = """
877
 
Name Enabled Timeout  Last Successful Check
878
 
foo  Yes     00:05:00 2019-02-03T00:00:00  
879
 
"""[1:-1]
880
 
        self.assertEqual(output, expected_output)
881
 
 
882
 
class TestDumpJSONCmd(TestCmd):
883
 
    def setUp(self):
884
 
        self.expected_json = {
885
 
            "foo": {
886
 
                "Name": "foo",
887
 
                "KeyID": ("92ed150794387c03ce684574b1139a65"
888
 
                          "94a34f895daaaf09fd8ea90a27cddb12"),
889
 
                "Host": "foo.example.org",
890
 
                "Enabled": True,
891
 
                "Timeout": 300000,
892
 
                "LastCheckedOK": "2019-02-03T00:00:00",
893
 
                "Created": "2019-01-02T00:00:00",
894
 
                "Interval": 120000,
895
 
                "Fingerprint": ("778827225BA7DE539C5A"
896
 
                                "7CFA59CFF7CDBD9A5920"),
897
 
                "CheckerRunning": False,
898
 
                "LastEnabled": "2019-01-03T00:00:00",
899
 
                "ApprovalPending": False,
900
 
                "ApprovedByDefault": True,
901
 
                "LastApprovalRequest": "",
902
 
                "ApprovalDelay": 0,
903
 
                "ApprovalDuration": 1000,
904
 
                "Checker": "fping -q -- %(host)s",
905
 
                "ExtendedTimeout": 900000,
906
 
                "Expires": "2019-02-04T00:00:00",
907
 
                "LastCheckerStatus": 0,
908
 
            },
909
 
            "barbar": {
910
 
                "Name": "barbar",
911
 
                "KeyID": ("0558568eedd67d622f5c83b35a115f79"
912
 
                          "6ab612cff5ad227247e46c2b020f441c"),
913
 
                "Host": "192.0.2.3",
914
 
                "Enabled": True,
915
 
                "Timeout": 300000,
916
 
                "LastCheckedOK": "2019-02-04T00:00:00",
917
 
                "Created": "2019-01-03T00:00:00",
918
 
                "Interval": 120000,
919
 
                "Fingerprint": ("3E393AEAEFB84C7E89E2"
920
 
                                "F547B3A107558FCA3A27"),
921
 
                "CheckerRunning": True,
922
 
                "LastEnabled": "2019-01-04T00:00:00",
923
 
                "ApprovalPending": False,
924
 
                "ApprovedByDefault": False,
925
 
                "LastApprovalRequest": "2019-01-03T00:00:00",
926
 
                "ApprovalDelay": 30000,
927
 
                "ApprovalDuration": 1000,
928
 
                "Checker": ":",
929
 
                "ExtendedTimeout": 900000,
930
 
                "Expires": "2019-02-05T00:00:00",
931
 
                "LastCheckerStatus": -2,
932
 
            },
933
 
        }
934
 
        return super(TestDumpJSONCmd, self).setUp()
935
 
    def test_normal(self):
936
 
        json_data = json.loads(DumpJSONCmd().output(self.clients))
937
 
        self.assertDictEqual(json_data, self.expected_json)
938
 
    def test_one_client(self):
939
 
        clients = self.one_client
940
 
        json_data = json.loads(DumpJSONCmd().output(clients))
941
 
        expected_json = {"foo": self.expected_json["foo"]}
942
 
        self.assertDictEqual(json_data, expected_json)
943
 
 
944
 
class TestIsEnabledCmd(TestCmd):
945
 
    def test_is_enabled(self):
946
 
        self.assertTrue(all(IsEnabledCmd().is_enabled(client, properties)
947
 
                            for client, properties in self.clients.items()))
948
 
    def test_is_enabled_run_exits_successfully(self):
949
 
        with self.assertRaises(SystemExit) as e:
950
 
            IsEnabledCmd().run(None, self.one_client)
951
 
        if e.exception.code is not None:
952
 
            self.assertEqual(e.exception.code, 0)
953
 
        else:
954
 
            self.assertIsNone(e.exception.code)
955
 
    def test_is_enabled_run_exits_with_failure(self):
956
 
        self.client.attributes["Enabled"] = dbus.Boolean(False)
957
 
        with self.assertRaises(SystemExit) as e:
958
 
            IsEnabledCmd().run(None, self.one_client)
959
 
        if isinstance(e.exception.code, int):
960
 
            self.assertNotEqual(e.exception.code, 0)
961
 
        else:
962
 
            self.assertIsNotNone(e.exception.code)
963
 
 
964
 
class TestRemoveCmd(TestCmd):
965
 
    def test_remove(self):
966
 
        class MockMandos(object):
967
 
            def __init__(self):
968
 
                self.calls = []
969
 
            def RemoveClient(self, dbus_path):
970
 
                self.calls.append(("RemoveClient", (dbus_path,)))
971
 
        mandos = MockMandos()
972
 
        super(TestRemoveCmd, self).setUp()
973
 
        RemoveCmd().run(mandos, self.clients)
974
 
        self.assertEqual(len(mandos.calls), 2)
975
 
        for client in self.clients:
976
 
            self.assertIn(("RemoveClient",
977
 
                           (client.__dbus_object_path__,)),
978
 
                          mandos.calls)
979
 
 
980
 
class TestApproveCmd(TestCmd):
981
 
    def test_approve(self):
982
 
        ApproveCmd().run(None, self.clients)
983
 
        for client in self.clients:
984
 
            self.assertIn(("Approve", (True, client_interface)),
985
 
                          client.calls)
986
 
 
987
 
class TestDenyCmd(TestCmd):
988
 
    def test_deny(self):
989
 
        DenyCmd().run(None, self.clients)
990
 
        for client in self.clients:
991
 
            self.assertIn(("Approve", (False, client_interface)),
992
 
                          client.calls)
993
 
 
994
 
class TestEnableCmd(TestCmd):
995
 
    def test_enable(self):
996
 
        for client in self.clients:
997
 
            client.attributes["Enabled"] = False
998
 
 
999
 
        EnableCmd().run(None, self.clients)
1000
 
 
1001
 
        for client in self.clients:
1002
 
            self.assertTrue(client.attributes["Enabled"])
1003
 
 
1004
 
class TestDisableCmd(TestCmd):
1005
 
    def test_disable(self):
1006
 
        DisableCmd().run(None, self.clients)
1007
 
 
1008
 
        for client in self.clients:
1009
 
            self.assertFalse(client.attributes["Enabled"])
1010
 
 
1011
 
 
1012
 
 
1013
 
def should_only_run_tests():
1014
 
    parser = argparse.ArgumentParser(add_help=False)
1015
 
    parser.add_argument("--check", action='store_true')
1016
 
    args, unknown_args = parser.parse_known_args()
1017
 
    run_tests = args.check
1018
 
    if run_tests:
1019
 
        # Remove --check argument from sys.argv
1020
 
        sys.argv[1:] = unknown_args
1021
 
    return run_tests
1022
 
 
1023
 
# Add all tests from doctest strings
1024
 
def load_tests(loader, tests, none):
1025
 
    import doctest
1026
 
    tests.addTests(doctest.DocTestSuite())
1027
 
    return tests
1028
 
 
1029
 
if __name__ == "__main__":
1030
 
    if should_only_run_tests():
1031
 
        # Call using ./tdd-python-script --check [--verbose]
1032
 
        unittest.main()
1033
 
    else:
1034
 
        main()