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Viewing changes to mandos-ctl

  • Committer: Teddy Hogeborn
  • Date: 2012-05-27 07:30:49 UTC
  • Revision ID: teddy@recompile.se-20120527073049-f153zv8otgosqonh
* plugins.d/mandos-client.xml (EXAMPLE): Doc fix: Network interface is
                                         now automatically determined,
                                         not always "eth0".

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mandos-ctl
1
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
 
#
 
2
# -*- mode: python; coding: utf-8 -*-
 
3
# 
4
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
 
5
# 
 
6
# Copyright © 2008-2012 Teddy Hogeborn
 
7
# Copyright © 2008-2012 Björn Påhlsson
 
8
# 
 
9
# This program is free software: you can redistribute it and/or modify
 
10
# it under the terms of the GNU General Public License as published by
13
11
# the Free Software Foundation, either version 3 of the License, or
14
12
# (at your option) any later version.
15
13
#
16
 
#     Mandos is distributed in the hope that it will be useful, but
17
 
#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
14
#     This program is distributed in the hope that it will be useful,
 
15
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
18
16
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19
17
#     GNU General Public License for more details.
20
 
#
 
18
# 
21
19
# 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
 
#
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
 
22
# 
24
23
# Contact the authors at <mandos@recompile.se>.
25
 
#
 
24
# 
26
25
 
27
26
from __future__ import (division, absolute_import, print_function,
28
27
                        unicode_literals)
29
28
 
30
 
try:
31
 
    from future_builtins import *
32
 
except ImportError:
33
 
    pass
 
29
from future_builtins import *
34
30
 
35
31
import sys
 
32
import dbus
36
33
import argparse
37
34
import locale
38
35
import datetime
39
36
import re
40
37
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
38
 
62
39
locale.setlocale(locale.LC_ALL, "")
63
40
 
71
48
    "Interval": "Interval",
72
49
    "Host": "Host",
73
50
    "Fingerprint": "Fingerprint",
74
 
    "KeyID": "Key ID",
75
51
    "CheckerRunning": "Check Is Running",
76
52
    "LastEnabled": "Last Enabled",
77
53
    "ApprovalPending": "Approval Is Pending",
79
55
    "ApprovalDelay": "Approval Delay",
80
56
    "ApprovalDuration": "Approval Duration",
81
57
    "Checker": "Checker",
82
 
    "ExtendedTimeout": "Extended Timeout",
83
 
    "Expires": "Expires",
84
 
    "LastCheckerStatus": "Last Checker Status",
85
 
}
 
58
    "ExtendedTimeout" : "Extended Timeout"
 
59
    }
86
60
defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
87
61
domain = "se.recompile"
88
62
busname = domain + ".Mandos"
89
63
server_path = "/"
90
64
server_interface = domain + ".Mandos"
91
65
client_interface = domain + ".Mandos.Client"
92
 
version = "1.8.3"
93
 
 
94
 
 
95
 
try:
96
 
    dbus.OBJECT_MANAGER_IFACE
97
 
except AttributeError:
98
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
99
 
 
 
66
version = "1.5.4"
 
67
 
 
68
def timedelta_to_milliseconds(td):
 
69
    """Convert a datetime.timedelta object to milliseconds"""
 
70
    return ((td.days * 24 * 60 * 60 * 1000)
 
71
            + (td.seconds * 1000)
 
72
            + (td.microseconds // 1000))
100
73
 
101
74
def milliseconds_to_string(ms):
102
75
    td = datetime.timedelta(0, 0, 0, ms)
103
76
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
104
 
            .format(days="{}T".format(td.days) if td.days else "",
105
 
                    hours=td.seconds // 3600,
106
 
                    minutes=(td.seconds % 3600) // 60,
107
 
                    seconds=td.seconds % 60))
108
 
 
109
 
 
110
 
def rfc3339_duration_to_delta(duration):
111
 
    """Parse an RFC 3339 "duration" and return a datetime.timedelta
112
 
 
113
 
    >>> rfc3339_duration_to_delta("P7D")
114
 
    datetime.timedelta(7)
115
 
    >>> rfc3339_duration_to_delta("PT60S")
116
 
    datetime.timedelta(0, 60)
117
 
    >>> rfc3339_duration_to_delta("PT60M")
118
 
    datetime.timedelta(0, 3600)
119
 
    >>> rfc3339_duration_to_delta("PT24H")
120
 
    datetime.timedelta(1)
121
 
    >>> rfc3339_duration_to_delta("P1W")
122
 
    datetime.timedelta(7)
123
 
    >>> rfc3339_duration_to_delta("PT5M30S")
124
 
    datetime.timedelta(0, 330)
125
 
    >>> rfc3339_duration_to_delta("P1DT3M20S")
126
 
    datetime.timedelta(1, 200)
127
 
    """
128
 
 
129
 
    # Parsing an RFC 3339 duration with regular expressions is not
130
 
    # possible - there would have to be multiple places for the same
131
 
    # values, like seconds.  The current code, while more esoteric, is
132
 
    # cleaner without depending on a parsing library.  If Python had a
133
 
    # built-in library for parsing we would use it, but we'd like to
134
 
    # avoid excessive use of external libraries.
135
 
 
136
 
    # New type for defining tokens, syntax, and semantics all-in-one
137
 
    Token = collections.namedtuple("Token", (
138
 
        "regexp",  # To match token; if "value" is not None, must have
139
 
                   # a "group" containing digits
140
 
        "value",   # datetime.timedelta or None
141
 
        "followers"))           # Tokens valid after this token
142
 
    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
143
 
    # the "duration" ABNF definition in RFC 3339, Appendix A.
144
 
    token_end = Token(re.compile(r"$"), None, frozenset())
145
 
    token_second = Token(re.compile(r"(\d+)S"),
146
 
                         datetime.timedelta(seconds=1),
147
 
                         frozenset((token_end, )))
148
 
    token_minute = Token(re.compile(r"(\d+)M"),
149
 
                         datetime.timedelta(minutes=1),
150
 
                         frozenset((token_second, token_end)))
151
 
    token_hour = Token(re.compile(r"(\d+)H"),
152
 
                       datetime.timedelta(hours=1),
153
 
                       frozenset((token_minute, token_end)))
154
 
    token_time = Token(re.compile(r"T"),
155
 
                       None,
156
 
                       frozenset((token_hour, token_minute,
157
 
                                  token_second)))
158
 
    token_day = Token(re.compile(r"(\d+)D"),
159
 
                      datetime.timedelta(days=1),
160
 
                      frozenset((token_time, token_end)))
161
 
    token_month = Token(re.compile(r"(\d+)M"),
162
 
                        datetime.timedelta(weeks=4),
163
 
                        frozenset((token_day, token_end)))
164
 
    token_year = Token(re.compile(r"(\d+)Y"),
165
 
                       datetime.timedelta(weeks=52),
166
 
                       frozenset((token_month, token_end)))
167
 
    token_week = Token(re.compile(r"(\d+)W"),
168
 
                       datetime.timedelta(weeks=1),
169
 
                       frozenset((token_end, )))
170
 
    token_duration = Token(re.compile(r"P"), None,
171
 
                           frozenset((token_year, token_month,
172
 
                                      token_day, token_time,
173
 
                                      token_week)))
174
 
    # Define starting values:
175
 
    # Value so far
176
 
    value = datetime.timedelta()
177
 
    found_token = None
178
 
    # Following valid tokens
179
 
    followers = frozenset((token_duration, ))
180
 
    # String left to parse
181
 
    s = duration
182
 
    # Loop until end token is found
183
 
    while found_token is not token_end:
184
 
        # Search for any currently valid tokens
185
 
        for token in followers:
186
 
            match = token.regexp.match(s)
187
 
            if match is not None:
188
 
                # Token found
189
 
                if token.value is not None:
190
 
                    # Value found, parse digits
191
 
                    factor = int(match.group(1), 10)
192
 
                    # Add to value so far
193
 
                    value += factor * token.value
194
 
                # Strip token from string
195
 
                s = token.regexp.sub("", s, 1)
196
 
                # Go to found token
197
 
                found_token = token
198
 
                # Set valid next tokens
199
 
                followers = found_token.followers
200
 
                break
201
 
        else:
202
 
            # No currently valid tokens were found
203
 
            raise ValueError("Invalid RFC 3339 duration: {!r}"
204
 
                             .format(duration))
205
 
    # End token found
206
 
    return value
207
 
 
 
77
            .format(days = "{0}T".format(td.days) if td.days else "",
 
78
                    hours = td.seconds // 3600,
 
79
                    minutes = (td.seconds % 3600) // 60,
 
80
                    seconds = td.seconds % 60,
 
81
                    ))
208
82
 
209
83
def string_to_delta(interval):
210
84
    """Parse a string and return a datetime.timedelta
211
 
 
212
 
    >>> string_to_delta('7d')
 
85
    
 
86
    >>> string_to_delta("7d")
213
87
    datetime.timedelta(7)
214
 
    >>> string_to_delta('60s')
 
88
    >>> string_to_delta("60s")
215
89
    datetime.timedelta(0, 60)
216
 
    >>> string_to_delta('60m')
 
90
    >>> string_to_delta("60m")
217
91
    datetime.timedelta(0, 3600)
218
 
    >>> string_to_delta('24h')
 
92
    >>> string_to_delta("24h")
219
93
    datetime.timedelta(1)
220
 
    >>> string_to_delta('1w')
 
94
    >>> string_to_delta("1w")
221
95
    datetime.timedelta(7)
222
 
    >>> string_to_delta('5m 30s')
 
96
    >>> string_to_delta("5m 30s")
223
97
    datetime.timedelta(0, 330)
224
98
    """
225
 
 
226
 
    try:
227
 
        return rfc3339_duration_to_delta(interval)
228
 
    except ValueError:
229
 
        pass
230
 
 
231
99
    value = datetime.timedelta(0)
232
 
    regexp = re.compile(r"(\d+)([dsmhw]?)")
233
 
 
 
100
    regexp = re.compile("(\d+)([dsmhw]?)")
 
101
    
234
102
    for num, suffix in regexp.findall(interval):
235
103
        if suffix == "d":
236
104
            value += datetime.timedelta(int(num))
246
114
            value += datetime.timedelta(0, 0, 0, int(num))
247
115
    return value
248
116
 
249
 
 
250
117
def print_clients(clients, keywords):
251
118
    def valuetostring(value, keyword):
252
 
        if isinstance(value, dbus.Boolean):
 
119
        if type(value) is dbus.Boolean:
253
120
            return "Yes" if value else "No"
254
121
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
255
122
                       "ApprovalDuration", "ExtendedTimeout"):
256
123
            return milliseconds_to_string(value)
257
 
        return str(value)
258
 
 
 
124
        return unicode(value)
 
125
    
259
126
    # Create format string to print table rows
260
127
    format_string = " ".join("{{{key}:{width}}}".format(
261
 
        width=max(len(tablewords[key]),
262
 
                  max(len(valuetostring(client[key], key))
263
 
                      for client in clients)),
264
 
        key=key)
265
 
                             for key in keywords)
 
128
            width = max(len(tablewords[key]),
 
129
                        max(len(valuetostring(client[key],
 
130
                                              key))
 
131
                            for client in
 
132
                            clients)),
 
133
            key = key) for key in keywords)
266
134
    # Print header line
267
135
    print(format_string.format(**tablewords))
268
136
    for client in clients:
269
 
        print(format_string
270
 
              .format(**{key: valuetostring(client[key], key)
271
 
                         for key in keywords}))
272
 
 
 
137
        print(format_string.format(**dict((key,
 
138
                                           valuetostring(client[key],
 
139
                                                         key))
 
140
                                          for key in keywords)))
273
141
 
274
142
def has_actions(options):
275
143
    return any((options.enable,
291
159
                options.approve,
292
160
                options.deny))
293
161
 
294
 
 
295
162
def main():
296
163
    parser = argparse.ArgumentParser()
297
164
    parser.add_argument("--version", action="version",
298
 
                        version="%(prog)s {}".format(version),
 
165
                        version = "%(prog)s {0}".format(version),
299
166
                        help="show version number and exit")
300
167
    parser.add_argument("-a", "--all", action="store_true",
301
168
                        help="Select all clients")
302
169
    parser.add_argument("-v", "--verbose", action="store_true",
303
170
                        help="Print all fields")
304
 
    parser.add_argument("-j", "--dump-json", action="store_true",
305
 
                        help="Dump client data in JSON format")
306
171
    parser.add_argument("-e", "--enable", action="store_true",
307
172
                        help="Enable client")
308
173
    parser.add_argument("-d", "--disable", action="store_true",
336
201
    parser.add_argument("--approval-duration",
337
202
                        help="Set duration of one client approval")
338
203
    parser.add_argument("-H", "--host", help="Set host for client")
339
 
    parser.add_argument("-s", "--secret",
340
 
                        type=argparse.FileType(mode="rb"),
 
204
    parser.add_argument("-s", "--secret", type=file,
341
205
                        help="Set password blob (file) for client")
342
206
    parser.add_argument("-A", "--approve", action="store_true",
343
207
                        help="Approve any current client request")
344
208
    parser.add_argument("-D", "--deny", action="store_true",
345
209
                        help="Deny any current client request")
346
 
    parser.add_argument("--check", action="store_true",
347
 
                        help="Run self-test")
348
210
    parser.add_argument("client", nargs="*", help="Client name")
349
211
    options = parser.parse_args()
350
 
 
 
212
    
351
213
    if has_actions(options) and not (options.client or options.all):
352
214
        parser.error("Options require clients names or --all.")
353
215
    if options.verbose and has_actions(options):
354
 
        parser.error("--verbose can only be used alone.")
355
 
    if options.dump_json and (options.verbose
356
 
                              or has_actions(options)):
357
 
        parser.error("--dump-json can only be used alone.")
 
216
        parser.error("--verbose can only be used alone or with"
 
217
                     " --all.")
358
218
    if options.all and not has_actions(options):
359
219
        parser.error("--all requires an action.")
360
 
 
 
220
    
361
221
    try:
362
222
        bus = dbus.SystemBus()
363
223
        mandos_dbus_objc = bus.get_object(busname, server_path)
364
224
    except dbus.exceptions.DBusException:
365
 
        log.critical("Could not connect to Mandos server")
 
225
        print("Could not connect to Mandos server",
 
226
              file=sys.stderr)
366
227
        sys.exit(1)
367
 
 
 
228
    
368
229
    mandos_serv = dbus.Interface(mandos_dbus_objc,
369
 
                                 dbus_interface=server_interface)
370
 
    mandos_serv_object_manager = dbus.Interface(
371
 
        mandos_dbus_objc, dbus_interface=dbus.OBJECT_MANAGER_IFACE)
372
 
 
373
 
    # block stderr since dbus library prints to stderr
 
230
                                 dbus_interface = server_interface)
 
231
    
 
232
    #block stderr since dbus library prints to stderr
374
233
    null = os.open(os.path.devnull, os.O_RDWR)
375
234
    stderrcopy = os.dup(sys.stderr.fileno())
376
235
    os.dup2(null, sys.stderr.fileno())
377
236
    os.close(null)
378
237
    try:
379
238
        try:
380
 
            mandos_clients = {path: ifs_and_props[client_interface]
381
 
                              for path, ifs_and_props in
382
 
                              mandos_serv_object_manager
383
 
                              .GetManagedObjects().items()
384
 
                              if client_interface in ifs_and_props}
 
239
            mandos_clients = mandos_serv.GetAllClientsWithProperties()
385
240
        finally:
386
 
            # restore stderr
 
241
            #restore stderr
387
242
            os.dup2(stderrcopy, sys.stderr.fileno())
388
243
            os.close(stderrcopy)
389
 
    except dbus.exceptions.DBusException as e:
390
 
        log.critical("Failed to access Mandos server through D-Bus:"
391
 
                     "\n%s", e)
 
244
    except dbus.exceptions.DBusException:
 
245
        print("Access denied: Accessing mandos server through dbus.",
 
246
              file=sys.stderr)
392
247
        sys.exit(1)
393
 
 
 
248
    
394
249
    # Compile dict of (clients: properties) to process
395
 
    clients = {}
396
 
 
 
250
    clients={}
 
251
    
397
252
    if options.all or not options.client:
398
 
        clients = {bus.get_object(busname, path): properties
399
 
                   for path, properties in mandos_clients.items()}
 
253
        clients = dict((bus.get_object(busname, path), properties)
 
254
                       for path, properties in
 
255
                       mandos_clients.iteritems())
400
256
    else:
401
257
        for name in options.client:
402
 
            for path, client in mandos_clients.items():
 
258
            for path, client in mandos_clients.iteritems():
403
259
                if client["Name"] == name:
404
260
                    client_objc = bus.get_object(busname, path)
405
261
                    clients[client_objc] = client
406
262
                    break
407
263
            else:
408
 
                log.critical("Client not found on server: %r", name)
 
264
                print("Client not found on server: {0!r}"
 
265
                      .format(name), file=sys.stderr)
409
266
                sys.exit(1)
410
 
 
 
267
    
411
268
    if not has_actions(options) and clients:
412
 
        if options.verbose or options.dump_json:
413
 
            keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
414
 
                        "Created", "Interval", "Host", "KeyID",
415
 
                        "Fingerprint", "CheckerRunning",
 
269
        if options.verbose:
 
270
            keywords = ("Name", "Enabled", "Timeout",
 
271
                        "LastCheckedOK", "Created", "Interval",
 
272
                        "Host", "Fingerprint", "CheckerRunning",
416
273
                        "LastEnabled", "ApprovalPending",
417
 
                        "ApprovedByDefault", "LastApprovalRequest",
418
 
                        "ApprovalDelay", "ApprovalDuration",
419
 
                        "Checker", "ExtendedTimeout", "Expires",
420
 
                        "LastCheckerStatus")
 
274
                        "ApprovedByDefault",
 
275
                        "LastApprovalRequest", "ApprovalDelay",
 
276
                        "ApprovalDuration", "Checker",
 
277
                        "ExtendedTimeout")
421
278
        else:
422
279
            keywords = defaultkeywords
423
 
 
424
 
        if options.dump_json:
425
 
            json.dump({client["Name"]: {key:
426
 
                                        bool(client[key])
427
 
                                        if isinstance(client[key],
428
 
                                                      dbus.Boolean)
429
 
                                        else client[key]
430
 
                                        for key in keywords}
431
 
                       for client in clients.values()},
432
 
                      fp=sys.stdout, indent=4,
433
 
                      separators=(',', ': '))
434
 
            print()
435
 
        else:
436
 
            print_clients(clients.values(), keywords)
 
280
        
 
281
        print_clients(clients.values(), keywords)
437
282
    else:
438
283
        # Process each client in the list by all selected options
439
284
        for client in clients:
440
 
 
441
285
            def set_client_prop(prop, value):
442
286
                """Set a Client D-Bus property"""
443
287
                client.Set(client_interface, prop, value,
444
288
                           dbus_interface=dbus.PROPERTIES_IFACE)
445
 
 
446
289
            def set_client_prop_ms(prop, value):
447
290
                """Set a Client D-Bus property, converted
448
291
                from a string to milliseconds."""
449
292
                set_client_prop(prop,
450
 
                                string_to_delta(value).total_seconds()
451
 
                                * 1000)
452
 
 
 
293
                                timedelta_to_milliseconds
 
294
                                (string_to_delta(value)))
453
295
            if options.remove:
454
296
                mandos_serv.RemoveClient(client.__dbus_object_path__)
455
297
            if options.enable:
463
305
            if options.stop_checker:
464
306
                set_client_prop("CheckerRunning", dbus.Boolean(False))
465
307
            if options.is_enabled:
466
 
                if client.Get(client_interface, "Enabled",
467
 
                              dbus_interface=dbus.PROPERTIES_IFACE):
468
 
                    sys.exit(0)
469
 
                else:
470
 
                    sys.exit(1)
 
308
                sys.exit(0 if client.Get(client_interface,
 
309
                                         "Enabled",
 
310
                                         dbus_interface=
 
311
                                         dbus.PROPERTIES_IFACE)
 
312
                         else 1)
471
313
            if options.checker is not None:
472
314
                set_client_prop("Checker", options.checker)
473
315
            if options.host is not None:
499
341
                client.Approve(dbus.Boolean(False),
500
342
                               dbus_interface=client_interface)
501
343
 
502
 
 
503
 
class Test_milliseconds_to_string(unittest.TestCase):
504
 
    def test_all(self):
505
 
        self.assertEqual(milliseconds_to_string(93785000),
506
 
                         "1T02:03:05")
507
 
    def test_no_days(self):
508
 
        self.assertEqual(milliseconds_to_string(7385000), "02:03:05")
509
 
    def test_all_zero(self):
510
 
        self.assertEqual(milliseconds_to_string(0), "00:00:00")
511
 
    def test_no_fractional_seconds(self):
512
 
        self.assertEqual(milliseconds_to_string(400), "00:00:00")
513
 
        self.assertEqual(milliseconds_to_string(900), "00:00:00")
514
 
        self.assertEqual(milliseconds_to_string(1900), "00:00:01")
515
 
 
516
 
 
517
 
def should_only_run_tests():
518
 
    parser = argparse.ArgumentParser(add_help=False)
519
 
    parser.add_argument("--check", action='store_true')
520
 
    args, unknown_args = parser.parse_known_args()
521
 
    run_tests = args.check
522
 
    if run_tests:
523
 
        # Remove --check argument from sys.argv
524
 
        sys.argv[1:] = unknown_args
525
 
    return run_tests
526
 
 
527
 
# Add all tests from doctest strings
528
 
def load_tests(loader, tests, none):
529
 
    import doctest
530
 
    tests.addTests(doctest.DocTestSuite())
531
 
    return tests
532
 
 
533
344
if __name__ == "__main__":
534
 
    if should_only_run_tests():
535
 
        # Call using ./tdd-python-script --check [--verbose]
536
 
        unittest.main()
537
 
    else:
538
 
        main()
 
345
    main()