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  • Committer: Björn Påhlsson
  • Date: 2008-08-15 20:17:32 UTC
  • mto: (237.7.1 mandos) (24.1.154 mandos)
  • mto: This revision was merged to the branch mainline in revision 77.
  • Revision ID: belorn@braxen-20080815201732-b7uux3yqs05b3fy9
Added configuration files support for mandos-client
Removed plus argument support for mandos-client

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mandos-ctl
1
 
#!/usr/bin/python
2
 
# -*- mode: python; coding: utf-8 -*-
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
 
 
44
 
import dbus
45
 
 
46
 
if sys.version_info.major == 2:
47
 
    str = unicode
48
 
 
49
 
locale.setlocale(locale.LC_ALL, "")
50
 
 
51
 
tablewords = {
52
 
    "Name": "Name",
53
 
    "Enabled": "Enabled",
54
 
    "Timeout": "Timeout",
55
 
    "LastCheckedOK": "Last Successful Check",
56
 
    "LastApprovalRequest": "Last Approval Request",
57
 
    "Created": "Created",
58
 
    "Interval": "Interval",
59
 
    "Host": "Host",
60
 
    "Fingerprint": "Fingerprint",
61
 
    "KeyID": "Key ID",
62
 
    "CheckerRunning": "Check Is Running",
63
 
    "LastEnabled": "Last Enabled",
64
 
    "ApprovalPending": "Approval Is Pending",
65
 
    "ApprovedByDefault": "Approved By Default",
66
 
    "ApprovalDelay": "Approval Delay",
67
 
    "ApprovalDuration": "Approval Duration",
68
 
    "Checker": "Checker",
69
 
    "ExtendedTimeout": "Extended Timeout",
70
 
    "Expires": "Expires",
71
 
    "LastCheckerStatus": "Last Checker Status",
72
 
}
73
 
defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
74
 
domain = "se.recompile"
75
 
busname = domain + ".Mandos"
76
 
server_path = "/"
77
 
server_interface = domain + ".Mandos"
78
 
client_interface = domain + ".Mandos.Client"
79
 
version = "1.8.0"
80
 
 
81
 
 
82
 
try:
83
 
    dbus.OBJECT_MANAGER_IFACE
84
 
except AttributeError:
85
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
86
 
 
87
 
 
88
 
def milliseconds_to_string(ms):
89
 
    td = datetime.timedelta(0, 0, 0, ms)
90
 
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
91
 
            .format(days="{}T".format(td.days) if td.days else "",
92
 
                    hours=td.seconds // 3600,
93
 
                    minutes=(td.seconds % 3600) // 60,
94
 
                    seconds=td.seconds % 60))
95
 
 
96
 
 
97
 
def rfc3339_duration_to_delta(duration):
98
 
    """Parse an RFC 3339 "duration" and return a datetime.timedelta
99
 
 
100
 
    >>> rfc3339_duration_to_delta("P7D")
101
 
    datetime.timedelta(7)
102
 
    >>> rfc3339_duration_to_delta("PT60S")
103
 
    datetime.timedelta(0, 60)
104
 
    >>> rfc3339_duration_to_delta("PT60M")
105
 
    datetime.timedelta(0, 3600)
106
 
    >>> rfc3339_duration_to_delta("PT24H")
107
 
    datetime.timedelta(1)
108
 
    >>> rfc3339_duration_to_delta("P1W")
109
 
    datetime.timedelta(7)
110
 
    >>> rfc3339_duration_to_delta("PT5M30S")
111
 
    datetime.timedelta(0, 330)
112
 
    >>> rfc3339_duration_to_delta("P1DT3M20S")
113
 
    datetime.timedelta(1, 200)
114
 
    """
115
 
 
116
 
    # Parsing an RFC 3339 duration with regular expressions is not
117
 
    # possible - there would have to be multiple places for the same
118
 
    # values, like seconds.  The current code, while more esoteric, is
119
 
    # cleaner without depending on a parsing library.  If Python had a
120
 
    # built-in library for parsing we would use it, but we'd like to
121
 
    # avoid excessive use of external libraries.
122
 
 
123
 
    # New type for defining tokens, syntax, and semantics all-in-one
124
 
    Token = collections.namedtuple("Token", (
125
 
        "regexp",  # To match token; if "value" is not None, must have
126
 
                   # a "group" containing digits
127
 
        "value",   # datetime.timedelta or None
128
 
        "followers"))           # Tokens valid after this token
129
 
    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
130
 
    # the "duration" ABNF definition in RFC 3339, Appendix A.
131
 
    token_end = Token(re.compile(r"$"), None, frozenset())
132
 
    token_second = Token(re.compile(r"(\d+)S"),
133
 
                         datetime.timedelta(seconds=1),
134
 
                         frozenset((token_end, )))
135
 
    token_minute = Token(re.compile(r"(\d+)M"),
136
 
                         datetime.timedelta(minutes=1),
137
 
                         frozenset((token_second, token_end)))
138
 
    token_hour = Token(re.compile(r"(\d+)H"),
139
 
                       datetime.timedelta(hours=1),
140
 
                       frozenset((token_minute, token_end)))
141
 
    token_time = Token(re.compile(r"T"),
142
 
                       None,
143
 
                       frozenset((token_hour, token_minute,
144
 
                                  token_second)))
145
 
    token_day = Token(re.compile(r"(\d+)D"),
146
 
                      datetime.timedelta(days=1),
147
 
                      frozenset((token_time, token_end)))
148
 
    token_month = Token(re.compile(r"(\d+)M"),
149
 
                        datetime.timedelta(weeks=4),
150
 
                        frozenset((token_day, token_end)))
151
 
    token_year = Token(re.compile(r"(\d+)Y"),
152
 
                       datetime.timedelta(weeks=52),
153
 
                       frozenset((token_month, token_end)))
154
 
    token_week = Token(re.compile(r"(\d+)W"),
155
 
                       datetime.timedelta(weeks=1),
156
 
                       frozenset((token_end, )))
157
 
    token_duration = Token(re.compile(r"P"), None,
158
 
                           frozenset((token_year, token_month,
159
 
                                      token_day, token_time,
160
 
                                      token_week)))
161
 
    # Define starting values:
162
 
    # Value so far
163
 
    value = datetime.timedelta()
164
 
    found_token = None
165
 
    # Following valid tokens
166
 
    followers = frozenset((token_duration, ))
167
 
    # String left to parse
168
 
    s = duration
169
 
    # Loop until end token is found
170
 
    while found_token is not token_end:
171
 
        # Search for any currently valid tokens
172
 
        for token in followers:
173
 
            match = token.regexp.match(s)
174
 
            if match is not None:
175
 
                # Token found
176
 
                if token.value is not None:
177
 
                    # Value found, parse digits
178
 
                    factor = int(match.group(1), 10)
179
 
                    # Add to value so far
180
 
                    value += factor * token.value
181
 
                # Strip token from string
182
 
                s = token.regexp.sub("", s, 1)
183
 
                # Go to found token
184
 
                found_token = token
185
 
                # Set valid next tokens
186
 
                followers = found_token.followers
187
 
                break
188
 
        else:
189
 
            # No currently valid tokens were found
190
 
            raise ValueError("Invalid RFC 3339 duration: {!r}"
191
 
                             .format(duration))
192
 
    # End token found
193
 
    return value
194
 
 
195
 
 
196
 
def string_to_delta(interval):
197
 
    """Parse a string and return a datetime.timedelta
198
 
 
199
 
    >>> string_to_delta('7d')
200
 
    datetime.timedelta(7)
201
 
    >>> string_to_delta('60s')
202
 
    datetime.timedelta(0, 60)
203
 
    >>> string_to_delta('60m')
204
 
    datetime.timedelta(0, 3600)
205
 
    >>> string_to_delta('24h')
206
 
    datetime.timedelta(1)
207
 
    >>> string_to_delta('1w')
208
 
    datetime.timedelta(7)
209
 
    >>> string_to_delta('5m 30s')
210
 
    datetime.timedelta(0, 330)
211
 
    """
212
 
 
213
 
    try:
214
 
        return rfc3339_duration_to_delta(interval)
215
 
    except ValueError:
216
 
        pass
217
 
 
218
 
    value = datetime.timedelta(0)
219
 
    regexp = re.compile(r"(\d+)([dsmhw]?)")
220
 
 
221
 
    for num, suffix in regexp.findall(interval):
222
 
        if suffix == "d":
223
 
            value += datetime.timedelta(int(num))
224
 
        elif suffix == "s":
225
 
            value += datetime.timedelta(0, int(num))
226
 
        elif suffix == "m":
227
 
            value += datetime.timedelta(0, 0, 0, 0, int(num))
228
 
        elif suffix == "h":
229
 
            value += datetime.timedelta(0, 0, 0, 0, 0, int(num))
230
 
        elif suffix == "w":
231
 
            value += datetime.timedelta(0, 0, 0, 0, 0, 0, int(num))
232
 
        elif suffix == "":
233
 
            value += datetime.timedelta(0, 0, 0, int(num))
234
 
    return value
235
 
 
236
 
 
237
 
def print_clients(clients, keywords):
238
 
    def valuetostring(value, keyword):
239
 
        if type(value) is dbus.Boolean:
240
 
            return "Yes" if value else "No"
241
 
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
242
 
                       "ApprovalDuration", "ExtendedTimeout"):
243
 
            return milliseconds_to_string(value)
244
 
        return str(value)
245
 
 
246
 
    # Create format string to print table rows
247
 
    format_string = " ".join("{{{key}:{width}}}".format(
248
 
        width=max(len(tablewords[key]),
249
 
                  max(len(valuetostring(client[key], key))
250
 
                      for client in clients)),
251
 
        key=key)
252
 
                             for key in keywords)
253
 
    # Print header line
254
 
    print(format_string.format(**tablewords))
255
 
    for client in clients:
256
 
        print(format_string
257
 
              .format(**{key: valuetostring(client[key], key)
258
 
                         for key in keywords}))
259
 
 
260
 
 
261
 
def has_actions(options):
262
 
    return any((options.enable,
263
 
                options.disable,
264
 
                options.bump_timeout,
265
 
                options.start_checker,
266
 
                options.stop_checker,
267
 
                options.is_enabled,
268
 
                options.remove,
269
 
                options.checker is not None,
270
 
                options.timeout is not None,
271
 
                options.extended_timeout is not None,
272
 
                options.interval is not None,
273
 
                options.approved_by_default is not None,
274
 
                options.approval_delay is not None,
275
 
                options.approval_duration is not None,
276
 
                options.host is not None,
277
 
                options.secret is not None,
278
 
                options.approve,
279
 
                options.deny))
280
 
 
281
 
 
282
 
def main():
283
 
    parser = argparse.ArgumentParser()
284
 
    parser.add_argument("--version", action="version",
285
 
                        version="%(prog)s {}".format(version),
286
 
                        help="show version number and exit")
287
 
    parser.add_argument("-a", "--all", action="store_true",
288
 
                        help="Select all clients")
289
 
    parser.add_argument("-v", "--verbose", action="store_true",
290
 
                        help="Print all fields")
291
 
    parser.add_argument("-j", "--dump-json", action="store_true",
292
 
                        help="Dump client data in JSON format")
293
 
    parser.add_argument("-e", "--enable", action="store_true",
294
 
                        help="Enable client")
295
 
    parser.add_argument("-d", "--disable", action="store_true",
296
 
                        help="disable client")
297
 
    parser.add_argument("-b", "--bump-timeout", action="store_true",
298
 
                        help="Bump timeout for client")
299
 
    parser.add_argument("--start-checker", action="store_true",
300
 
                        help="Start checker for client")
301
 
    parser.add_argument("--stop-checker", action="store_true",
302
 
                        help="Stop checker for client")
303
 
    parser.add_argument("-V", "--is-enabled", action="store_true",
304
 
                        help="Check if client is enabled")
305
 
    parser.add_argument("-r", "--remove", action="store_true",
306
 
                        help="Remove client")
307
 
    parser.add_argument("-c", "--checker",
308
 
                        help="Set checker command for client")
309
 
    parser.add_argument("-t", "--timeout",
310
 
                        help="Set timeout for client")
311
 
    parser.add_argument("--extended-timeout",
312
 
                        help="Set extended timeout for client")
313
 
    parser.add_argument("-i", "--interval",
314
 
                        help="Set checker interval for client")
315
 
    parser.add_argument("--approve-by-default", action="store_true",
316
 
                        default=None, dest="approved_by_default",
317
 
                        help="Set client to be approved by default")
318
 
    parser.add_argument("--deny-by-default", action="store_false",
319
 
                        dest="approved_by_default",
320
 
                        help="Set client to be denied by default")
321
 
    parser.add_argument("--approval-delay",
322
 
                        help="Set delay before client approve/deny")
323
 
    parser.add_argument("--approval-duration",
324
 
                        help="Set duration of one client approval")
325
 
    parser.add_argument("-H", "--host", help="Set host for client")
326
 
    parser.add_argument("-s", "--secret",
327
 
                        type=argparse.FileType(mode="rb"),
328
 
                        help="Set password blob (file) for client")
329
 
    parser.add_argument("-A", "--approve", action="store_true",
330
 
                        help="Approve any current client request")
331
 
    parser.add_argument("-D", "--deny", action="store_true",
332
 
                        help="Deny any current client request")
333
 
    parser.add_argument("--check", action="store_true",
334
 
                        help="Run self-test")
335
 
    parser.add_argument("client", nargs="*", help="Client name")
336
 
    options = parser.parse_args()
337
 
 
338
 
    if has_actions(options) and not (options.client or options.all):
339
 
        parser.error("Options require clients names or --all.")
340
 
    if options.verbose and has_actions(options):
341
 
        parser.error("--verbose can only be used alone.")
342
 
    if options.dump_json and (options.verbose
343
 
                              or has_actions(options)):
344
 
        parser.error("--dump-json can only be used alone.")
345
 
    if options.all and not has_actions(options):
346
 
        parser.error("--all requires an action.")
347
 
 
348
 
    if options.check:
349
 
        import doctest
350
 
        fail_count, test_count = doctest.testmod()
351
 
        sys.exit(os.EX_OK if fail_count == 0 else 1)
352
 
 
353
 
    try:
354
 
        bus = dbus.SystemBus()
355
 
        mandos_dbus_objc = bus.get_object(busname, server_path)
356
 
    except dbus.exceptions.DBusException:
357
 
        print("Could not connect to Mandos server", file=sys.stderr)
358
 
        sys.exit(1)
359
 
 
360
 
    mandos_serv = dbus.Interface(mandos_dbus_objc,
361
 
                                 dbus_interface=server_interface)
362
 
    mandos_serv_object_manager = dbus.Interface(
363
 
        mandos_dbus_objc, dbus_interface=dbus.OBJECT_MANAGER_IFACE)
364
 
 
365
 
    # block stderr since dbus library prints to stderr
366
 
    null = os.open(os.path.devnull, os.O_RDWR)
367
 
    stderrcopy = os.dup(sys.stderr.fileno())
368
 
    os.dup2(null, sys.stderr.fileno())
369
 
    os.close(null)
370
 
    try:
371
 
        try:
372
 
            mandos_clients = {path: ifs_and_props[client_interface]
373
 
                              for path, ifs_and_props in
374
 
                              mandos_serv_object_manager
375
 
                              .GetManagedObjects().items()
376
 
                              if client_interface in ifs_and_props}
377
 
        finally:
378
 
            # restore stderr
379
 
            os.dup2(stderrcopy, sys.stderr.fileno())
380
 
            os.close(stderrcopy)
381
 
    except dbus.exceptions.DBusException as e:
382
 
        print("Access denied: "
383
 
              "Accessing mandos server through D-Bus: {}".format(e),
384
 
              file=sys.stderr)
385
 
        sys.exit(1)
386
 
 
387
 
    # Compile dict of (clients: properties) to process
388
 
    clients = {}
389
 
 
390
 
    if options.all or not options.client:
391
 
        clients = {bus.get_object(busname, path): properties
392
 
                   for path, properties in mandos_clients.items()}
393
 
    else:
394
 
        for name in options.client:
395
 
            for path, client in mandos_clients.items():
396
 
                if client["Name"] == name:
397
 
                    client_objc = bus.get_object(busname, path)
398
 
                    clients[client_objc] = client
399
 
                    break
400
 
            else:
401
 
                print("Client not found on server: {!r}"
402
 
                      .format(name), file=sys.stderr)
403
 
                sys.exit(1)
404
 
 
405
 
    if not has_actions(options) and clients:
406
 
        if options.verbose or options.dump_json:
407
 
            keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
408
 
                        "Created", "Interval", "Host", "KeyID",
409
 
                        "Fingerprint", "CheckerRunning",
410
 
                        "LastEnabled", "ApprovalPending",
411
 
                        "ApprovedByDefault", "LastApprovalRequest",
412
 
                        "ApprovalDelay", "ApprovalDuration",
413
 
                        "Checker", "ExtendedTimeout", "Expires",
414
 
                        "LastCheckerStatus")
415
 
        else:
416
 
            keywords = defaultkeywords
417
 
 
418
 
        if options.dump_json:
419
 
            json.dump({client["Name"]: {key:
420
 
                                        bool(client[key])
421
 
                                        if isinstance(client[key],
422
 
                                                      dbus.Boolean)
423
 
                                        else client[key]
424
 
                                        for key in keywords}
425
 
                       for client in clients.values()},
426
 
                      fp=sys.stdout, indent=4,
427
 
                      separators=(',', ': '))
428
 
            print()
429
 
        else:
430
 
            print_clients(clients.values(), keywords)
431
 
    else:
432
 
        # Process each client in the list by all selected options
433
 
        for client in clients:
434
 
 
435
 
            def set_client_prop(prop, value):
436
 
                """Set a Client D-Bus property"""
437
 
                client.Set(client_interface, prop, value,
438
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
439
 
 
440
 
            def set_client_prop_ms(prop, value):
441
 
                """Set a Client D-Bus property, converted
442
 
                from a string to milliseconds."""
443
 
                set_client_prop(prop,
444
 
                                string_to_delta(value).total_seconds()
445
 
                                * 1000)
446
 
 
447
 
            if options.remove:
448
 
                mandos_serv.RemoveClient(client.__dbus_object_path__)
449
 
            if options.enable:
450
 
                set_client_prop("Enabled", dbus.Boolean(True))
451
 
            if options.disable:
452
 
                set_client_prop("Enabled", dbus.Boolean(False))
453
 
            if options.bump_timeout:
454
 
                set_client_prop("LastCheckedOK", "")
455
 
            if options.start_checker:
456
 
                set_client_prop("CheckerRunning", dbus.Boolean(True))
457
 
            if options.stop_checker:
458
 
                set_client_prop("CheckerRunning", dbus.Boolean(False))
459
 
            if options.is_enabled:
460
 
                if client.Get(client_interface, "Enabled",
461
 
                              dbus_interface=dbus.PROPERTIES_IFACE):
462
 
                    sys.exit(0)
463
 
                else:
464
 
                    sys.exit(1)
465
 
            if options.checker is not None:
466
 
                set_client_prop("Checker", options.checker)
467
 
            if options.host is not None:
468
 
                set_client_prop("Host", options.host)
469
 
            if options.interval is not None:
470
 
                set_client_prop_ms("Interval", options.interval)
471
 
            if options.approval_delay is not None:
472
 
                set_client_prop_ms("ApprovalDelay",
473
 
                                   options.approval_delay)
474
 
            if options.approval_duration is not None:
475
 
                set_client_prop_ms("ApprovalDuration",
476
 
                                   options.approval_duration)
477
 
            if options.timeout is not None:
478
 
                set_client_prop_ms("Timeout", options.timeout)
479
 
            if options.extended_timeout is not None:
480
 
                set_client_prop_ms("ExtendedTimeout",
481
 
                                   options.extended_timeout)
482
 
            if options.secret is not None:
483
 
                set_client_prop("Secret",
484
 
                                dbus.ByteArray(options.secret.read()))
485
 
            if options.approved_by_default is not None:
486
 
                set_client_prop("ApprovedByDefault",
487
 
                                dbus.Boolean(options
488
 
                                             .approved_by_default))
489
 
            if options.approve:
490
 
                client.Approve(dbus.Boolean(True),
491
 
                               dbus_interface=client_interface)
492
 
            elif options.deny:
493
 
                client.Approve(dbus.Boolean(False),
494
 
                               dbus_interface=client_interface)
495
 
 
496
 
 
497
 
if __name__ == "__main__":
498
 
    main()