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  • Committer: Teddy Hogeborn
  • Date: 2008-12-10 01:26:02 UTC
  • mfrom: (237.1.2 mandos)
  • Revision ID: teddy@fukt.bsnet.se-20081210012602-vhz3h75xkj24t340
First version of a somewhat complete D-Bus server interface.  Also
change user/group name to "_mandos".

* debian/mandos.postinst: Rename old "mandos" user and group to
                          "_mandos"; create "_mandos" user and group
                          if none exist.
* debian/mandos-client.postinst: - '' -

* initramfs-tools-hook: Try "_mandos" before "mandos" as user and
                        group name.

* mandos (_datetime_to_dbus_struct): New; was previously local.
  (Client.started): Renamed to "last_started".  All users changed.
  (Client.started): New; boolean.
  (Client.dbus_object_path): New.
  (Client.check_command): Renamed to "checker_command".  All users
                          changed.
  (Client.__init__): Set and use "self.dbus_object_path".  Set
                     "self.started".
  (Client.start): Update "self.started".  Emit "self.PropertyChanged"
                  signals for both "started" and "last_started".
  (Client.stop): Update "self.started".  Emit "self.PropertyChanged"
                 signal for "started".
  (Client.checker_callback): Take additional "command" argument.  All
                             callers changed. Emit
                             "self.PropertyChanged" signal.
  (Client.bump_timeout): Emit "self.PropertyChanged" signal for
                         "last_checked_ok".
  (Client.start_checker): Emit "self.PropertyChanged" signal for
                          "checker_running".
  (Client.stop_checker): Emit "self.PropertyChanged" signal for
                         "checker_running".
  (Client.still_valid): Bug fix: use "getattr(self, started, False)"
                        instead of "self.started" in case this client
                        object is so new that the "started" attribute
                        has not been created yet.
  (Client.IntervalChanged, Client.CheckerIsRunning, Client.GetChecker,
  Client.GetCreated, Client.GetFingerprint, Client.GetHost,
  Client.GetInterval, Client.GetName, Client.GetStarted,
  Client.GetTimeout, Client.StateChanged, Client.TimeoutChanged):
  Removed; all callers changed.
  (Client.CheckerCompleted): Add "condition" and "command" arguments.
                             All callers changed.
  (Client.GetAllProperties, Client.PropertyChanged): New.
  (Client.StillValid): Renamed to "IsStillValid".
  (Client.StartChecker): Changed to its own function to avoid the
                         return value from "Client.start_checker()".
  (Client.Stop): Changed to its own function to avoid the return value
                 from "Client.stop()".
  (main): Try "_mandos" before "mandos" as user and group name.
          Removed inner function "remove_from_clients".  New inner
          class "MandosServer".

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Lines of Context:
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
 
    dbus_logger.addFilter(dbus_filter)
698
 
    try:
699
 
        try:
700
 
            mandos_clients = {path: ifs_and_props[client_interface]
701
 
                              for path, ifs_and_props in
702
 
                              mandos_serv_object_manager
703
 
                              .GetManagedObjects().items()
704
 
                              if client_interface in ifs_and_props}
705
 
        finally:
706
 
            # restore dbus logger
707
 
            dbus_logger.removeFilter(dbus_filter)
708
 
    except dbus.exceptions.DBusException as e:
709
 
        log.critical("Failed to access Mandos server through D-Bus:"
710
 
                     "\n%s", e)
711
 
        sys.exit(1)
712
 
 
713
 
    # Compile dict of (clients: properties) to process
714
 
    clients = {}
715
 
 
716
 
    if not clientnames:
717
 
        clients = {bus.get_object(busname, path): properties
718
 
                   for path, properties in mandos_clients.items()}
719
 
    else:
720
 
        for name in clientnames:
721
 
            for path, client in mandos_clients.items():
722
 
                if client["Name"] == name:
723
 
                    client_objc = bus.get_object(busname, path)
724
 
                    clients[client_objc] = client
725
 
                    break
726
 
            else:
727
 
                log.critical("Client not found on server: %r", name)
728
 
                sys.exit(1)
729
 
 
730
 
    # Run all commands on clients
731
 
    for command in commands:
732
 
        command.run(mandos_serv, clients)
733
 
 
734
 
 
735
 
class Test_milliseconds_to_string(unittest.TestCase):
736
 
    def test_all(self):
737
 
        self.assertEqual(milliseconds_to_string(93785000),
738
 
                         "1T02:03:05")
739
 
    def test_no_days(self):
740
 
        self.assertEqual(milliseconds_to_string(7385000), "02:03:05")
741
 
    def test_all_zero(self):
742
 
        self.assertEqual(milliseconds_to_string(0), "00:00:00")
743
 
    def test_no_fractional_seconds(self):
744
 
        self.assertEqual(milliseconds_to_string(400), "00:00:00")
745
 
        self.assertEqual(milliseconds_to_string(900), "00:00:00")
746
 
        self.assertEqual(milliseconds_to_string(1900), "00:00:01")
747
 
 
748
 
class Test_string_to_delta(unittest.TestCase):
749
 
    def test_handles_basic_rfc3339(self):
750
 
        self.assertEqual(string_to_delta("PT2H"),
751
 
                         datetime.timedelta(0, 7200))
752
 
    def test_falls_back_to_pre_1_6_1_with_warning(self):
753
 
        # assertLogs only exists in Python 3.4
754
 
        if hasattr(self, "assertLogs"):
755
 
            with self.assertLogs(log, logging.WARNING):
756
 
                value = string_to_delta("2h")
757
 
        else:
758
 
            class WarningFilter(logging.Filter):
759
 
                """Don't show, but record the presence of, warnings"""
760
 
                def filter(self, record):
761
 
                    is_warning = record.levelno >= logging.WARNING
762
 
                    self.found = is_warning or getattr(self, "found",
763
 
                                                       False)
764
 
                    return not is_warning
765
 
            warning_filter = WarningFilter()
766
 
            log.addFilter(warning_filter)
767
 
            try:
768
 
                value = string_to_delta("2h")
769
 
            finally:
770
 
                log.removeFilter(warning_filter)
771
 
            self.assertTrue(getattr(warning_filter, "found", False))
772
 
        self.assertEqual(value, datetime.timedelta(0, 7200))
773
 
 
774
 
 
775
 
class TestCmd(unittest.TestCase):
776
 
    """Abstract class for tests of command classes"""
777
 
    def setUp(self):
778
 
        testcase = self
779
 
        class MockClient(object):
780
 
            def __init__(self, name, **attributes):
781
 
                self.__dbus_object_path__ = "objpath_{}".format(name)
782
 
                self.attributes = attributes
783
 
                self.attributes["Name"] = name
784
 
                self.calls = []
785
 
            def Set(self, interface, property, value, dbus_interface):
786
 
                testcase.assertEqual(interface, client_interface)
787
 
                testcase.assertEqual(dbus_interface,
788
 
                                     dbus.PROPERTIES_IFACE)
789
 
                self.attributes[property] = value
790
 
                self.calls.append(("Set", (interface, property, value,
791
 
                                           dbus_interface)))
792
 
            def Get(self, interface, property, dbus_interface):
793
 
                testcase.assertEqual(interface, client_interface)
794
 
                testcase.assertEqual(dbus_interface,
795
 
                                     dbus.PROPERTIES_IFACE)
796
 
                self.calls.append(("Get", (interface, property,
797
 
                                           dbus_interface)))
798
 
                return self.attributes[property]
799
 
            def __getitem__(self, key):
800
 
                return self.attributes[key]
801
 
            def __setitem__(self, key, value):
802
 
                self.attributes[key] = value
803
 
        self.clients = collections.OrderedDict([
804
 
            ("foo",
805
 
             MockClient(
806
 
                 "foo",
807
 
                 KeyID=("92ed150794387c03ce684574b1139a65"
808
 
                        "94a34f895daaaf09fd8ea90a27cddb12"),
809
 
                 Secret=b"secret",
810
 
                 Host="foo.example.org",
811
 
                 Enabled=dbus.Boolean(True),
812
 
                 Timeout=300000,
813
 
                 LastCheckedOK="2019-02-03T00:00:00",
814
 
                 Created="2019-01-02T00:00:00",
815
 
                 Interval=120000,
816
 
                 Fingerprint=("778827225BA7DE539C5A"
817
 
                              "7CFA59CFF7CDBD9A5920"),
818
 
                 CheckerRunning=dbus.Boolean(False),
819
 
                 LastEnabled="2019-01-03T00:00:00",
820
 
                 ApprovalPending=dbus.Boolean(False),
821
 
                 ApprovedByDefault=dbus.Boolean(True),
822
 
                 LastApprovalRequest="",
823
 
                 ApprovalDelay=0,
824
 
                 ApprovalDuration=1000,
825
 
                 Checker="fping -q -- %(host)s",
826
 
                 ExtendedTimeout=900000,
827
 
                 Expires="2019-02-04T00:00:00",
828
 
                 LastCheckerStatus=0)),
829
 
            ("barbar",
830
 
             MockClient(
831
 
                 "barbar",
832
 
                 KeyID=("0558568eedd67d622f5c83b35a115f79"
833
 
                        "6ab612cff5ad227247e46c2b020f441c"),
834
 
                 Secret=b"secretbar",
835
 
                 Host="192.0.2.3",
836
 
                 Enabled=dbus.Boolean(True),
837
 
                 Timeout=300000,
838
 
                 LastCheckedOK="2019-02-04T00:00:00",
839
 
                 Created="2019-01-03T00:00:00",
840
 
                 Interval=120000,
841
 
                 Fingerprint=("3E393AEAEFB84C7E89E2"
842
 
                              "F547B3A107558FCA3A27"),
843
 
                 CheckerRunning=dbus.Boolean(True),
844
 
                 LastEnabled="2019-01-04T00:00:00",
845
 
                 ApprovalPending=dbus.Boolean(False),
846
 
                 ApprovedByDefault=dbus.Boolean(False),
847
 
                 LastApprovalRequest="2019-01-03T00:00:00",
848
 
                 ApprovalDelay=30000,
849
 
                 ApprovalDuration=1000,
850
 
                 Checker=":",
851
 
                 ExtendedTimeout=900000,
852
 
                 Expires="2019-02-05T00:00:00",
853
 
                 LastCheckerStatus=-2)),
854
 
            ])
855
 
 
856
 
class TestPrintTableCmd(TestCmd):
857
 
    def test_normal(self):
858
 
        output = PrintTableCmd().output(self.clients)
859
 
        expected_output = """
860
 
Name   Enabled Timeout  Last Successful Check
861
 
foo    Yes     00:05:00 2019-02-03T00:00:00  
862
 
barbar Yes     00:05:00 2019-02-04T00:00:00  
863
 
"""[1:-1]
864
 
        self.assertEqual(output, expected_output)
865
 
    def test_verbose(self):
866
 
        output = PrintTableCmd(verbose=True).output(self.clients)
867
 
        expected_output = """
868
 
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
869
 
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                  
870
 
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                 
871
 
"""[1:-1]
872
 
        self.assertEqual(output, expected_output)
873
 
    def test_one_client(self):
874
 
        output = PrintTableCmd().output({"foo": self.clients["foo"]})
875
 
        expected_output = """
876
 
Name Enabled Timeout  Last Successful Check
877
 
foo  Yes     00:05:00 2019-02-03T00:00:00  
878
 
"""[1:-1]
879
 
        self.assertEqual(output, expected_output)
880
 
 
881
 
class TestDumpJSONCmd(TestCmd):
882
 
    def setUp(self):
883
 
        self.expected_json = {
884
 
            "foo": {
885
 
                "Name": "foo",
886
 
                "KeyID": ("92ed150794387c03ce684574b1139a65"
887
 
                          "94a34f895daaaf09fd8ea90a27cddb12"),
888
 
                "Host": "foo.example.org",
889
 
                "Enabled": True,
890
 
                "Timeout": 300000,
891
 
                "LastCheckedOK": "2019-02-03T00:00:00",
892
 
                "Created": "2019-01-02T00:00:00",
893
 
                "Interval": 120000,
894
 
                "Fingerprint": ("778827225BA7DE539C5A"
895
 
                                "7CFA59CFF7CDBD9A5920"),
896
 
                "CheckerRunning": False,
897
 
                "LastEnabled": "2019-01-03T00:00:00",
898
 
                "ApprovalPending": False,
899
 
                "ApprovedByDefault": True,
900
 
                "LastApprovalRequest": "",
901
 
                "ApprovalDelay": 0,
902
 
                "ApprovalDuration": 1000,
903
 
                "Checker": "fping -q -- %(host)s",
904
 
                "ExtendedTimeout": 900000,
905
 
                "Expires": "2019-02-04T00:00:00",
906
 
                "LastCheckerStatus": 0,
907
 
            },
908
 
            "barbar": {
909
 
                "Name": "barbar",
910
 
                "KeyID": ("0558568eedd67d622f5c83b35a115f79"
911
 
                          "6ab612cff5ad227247e46c2b020f441c"),
912
 
                "Host": "192.0.2.3",
913
 
                "Enabled": True,
914
 
                "Timeout": 300000,
915
 
                "LastCheckedOK": "2019-02-04T00:00:00",
916
 
                "Created": "2019-01-03T00:00:00",
917
 
                "Interval": 120000,
918
 
                "Fingerprint": ("3E393AEAEFB84C7E89E2"
919
 
                                "F547B3A107558FCA3A27"),
920
 
                "CheckerRunning": True,
921
 
                "LastEnabled": "2019-01-04T00:00:00",
922
 
                "ApprovalPending": False,
923
 
                "ApprovedByDefault": False,
924
 
                "LastApprovalRequest": "2019-01-03T00:00:00",
925
 
                "ApprovalDelay": 30000,
926
 
                "ApprovalDuration": 1000,
927
 
                "Checker": ":",
928
 
                "ExtendedTimeout": 900000,
929
 
                "Expires": "2019-02-05T00:00:00",
930
 
                "LastCheckerStatus": -2,
931
 
            },
932
 
        }
933
 
        return super(TestDumpJSONCmd, self).setUp()
934
 
    def test_normal(self):
935
 
        json_data = json.loads(DumpJSONCmd().output(self.clients))
936
 
        self.assertDictEqual(json_data, self.expected_json)
937
 
    def test_one_client(self):
938
 
        clients = {"foo": self.clients["foo"]}
939
 
        json_data = json.loads(DumpJSONCmd().output(clients))
940
 
        expected_json = {"foo": self.expected_json["foo"]}
941
 
        self.assertDictEqual(json_data, expected_json)
942
 
 
943
 
class TestIsEnabledCmd(TestCmd):
944
 
    def test_is_enabled(self):
945
 
        self.assertTrue(all(IsEnabledCmd().is_enabled(client)
946
 
                            for client in self.clients.values()))
947
 
    def test_is_enabled_does_get_attribute(self):
948
 
        client = self.clients["foo"]
949
 
        self.assertTrue(IsEnabledCmd().is_enabled(client))
950
 
        self.assertListEqual(client.calls,
951
 
                             [("Get",
952
 
                               ("se.recompile.Mandos.Client",
953
 
                                "Enabled",
954
 
                                "org.freedesktop.DBus.Properties"))])
955
 
    def test_is_enabled_run_exits_successfully(self):
956
 
        client = self.clients["foo"]
957
 
        with self.assertRaises(SystemExit) as e:
958
 
            IsEnabledCmd().run_on_one_client(client)
959
 
        if e.exception.code is not None:
960
 
            self.assertEqual(e.exception.code, 0)
961
 
        else:
962
 
            self.assertIsNone(e.exception.code)
963
 
    def test_is_enabled_run_exits_with_failure(self):
964
 
        client = self.clients["foo"]
965
 
        client["Enabled"] = dbus.Boolean(False)
966
 
        with self.assertRaises(SystemExit) as e:
967
 
            IsEnabledCmd().run_on_one_client(client)
968
 
        if isinstance(e.exception.code, int):
969
 
            self.assertNotEqual(e.exception.code, 0)
970
 
        else:
971
 
            self.assertIsNotNone(e.exception.code)
972
 
 
973
 
 
974
 
 
975
 
def should_only_run_tests():
976
 
    parser = argparse.ArgumentParser(add_help=False)
977
 
    parser.add_argument("--check", action='store_true')
978
 
    args, unknown_args = parser.parse_known_args()
979
 
    run_tests = args.check
980
 
    if run_tests:
981
 
        # Remove --check argument from sys.argv
982
 
        sys.argv[1:] = unknown_args
983
 
    return run_tests
984
 
 
985
 
# Add all tests from doctest strings
986
 
def load_tests(loader, tests, none):
987
 
    import doctest
988
 
    tests.addTests(doctest.DocTestSuite())
989
 
    return tests
990
 
 
991
 
if __name__ == "__main__":
992
 
    if should_only_run_tests():
993
 
        # Call using ./tdd-python-script --check [--verbose]
994
 
        unittest.main()
995
 
    else:
996
 
        main()