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  • Committer: Teddy Hogeborn
  • Date: 2012-01-15 21:01:13 UTC
  • Revision ID: teddy@recompile.se-20120115210113-mzpkowq0opshtu30
* mandos.xml (CHECKING): Don't claim that a successful secret request
                         is equivalent to a successful checker.

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mandos-ctl
1
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
#
 
3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
 
#
6
 
# Copyright © 2008-2016 Teddy Hogeborn
7
 
# Copyright © 2008-2016 Björn Påhlsson
8
 
#
 
5
# 
 
6
# Copyright © 2008-2012 Teddy Hogeborn
 
7
# Copyright © 2008-2012 Björn Påhlsson
 
8
# 
9
9
# This program is free software: you can redistribute it and/or modify
10
10
# it under the terms of the GNU General Public License as published by
11
11
# the Free Software Foundation, either version 3 of the License, or
15
15
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
16
16
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
17
#     GNU General Public License for more details.
18
 
#
 
18
# 
19
19
# You should have received a copy of the GNU General Public License
20
 
# along with this program.  If not, see
21
 
# <http://www.gnu.org/licenses/>.
22
 
#
 
20
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
21
# 
23
22
# Contact the authors at <mandos@recompile.se>.
24
 
#
 
23
# 
25
24
 
26
25
from __future__ import (division, absolute_import, print_function,
27
26
                        unicode_literals)
28
27
 
29
 
try:
30
 
    from future_builtins import *
31
 
except ImportError:
32
 
    pass
33
 
 
34
28
import sys
 
29
import dbus
35
30
import argparse
36
31
import locale
37
32
import datetime
38
33
import re
39
34
import os
40
 
import collections
41
 
import doctest
42
 
import json
43
 
 
44
 
import dbus
45
 
 
46
 
if sys.version_info.major == 2:
47
 
    str = unicode
48
35
 
49
36
locale.setlocale(locale.LC_ALL, "")
50
37
 
65
52
    "ApprovalDelay": "Approval Delay",
66
53
    "ApprovalDuration": "Approval Duration",
67
54
    "Checker": "Checker",
68
 
    "ExtendedTimeout": "Extended Timeout",
69
 
    "Expires": "Expires",
70
 
    "LastCheckerStatus": "Last Checker Status",
71
 
}
 
55
    "ExtendedTimeout" : "Extended Timeout"
 
56
    }
72
57
defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
73
58
domain = "se.recompile"
74
59
busname = domain + ".Mandos"
75
60
server_path = "/"
76
61
server_interface = domain + ".Mandos"
77
62
client_interface = domain + ".Mandos.Client"
78
 
version = "1.7.13"
79
 
 
80
 
 
81
 
try:
82
 
    dbus.OBJECT_MANAGER_IFACE
83
 
except AttributeError:
84
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
85
 
 
 
63
version = "1.5.2"
 
64
 
 
65
def timedelta_to_milliseconds(td):
 
66
    """Convert a datetime.timedelta object to milliseconds"""
 
67
    return ((td.days * 24 * 60 * 60 * 1000)
 
68
            + (td.seconds * 1000)
 
69
            + (td.microseconds // 1000))
86
70
 
87
71
def milliseconds_to_string(ms):
88
72
    td = datetime.timedelta(0, 0, 0, ms)
89
 
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
90
 
            .format(days="{}T".format(td.days) if td.days else "",
91
 
                    hours=td.seconds // 3600,
92
 
                    minutes=(td.seconds % 3600) // 60,
93
 
                    seconds=td.seconds % 60))
94
 
 
95
 
 
96
 
def rfc3339_duration_to_delta(duration):
97
 
    """Parse an RFC 3339 "duration" and return a datetime.timedelta
98
 
 
99
 
    >>> rfc3339_duration_to_delta("P7D")
100
 
    datetime.timedelta(7)
101
 
    >>> rfc3339_duration_to_delta("PT60S")
102
 
    datetime.timedelta(0, 60)
103
 
    >>> rfc3339_duration_to_delta("PT60M")
104
 
    datetime.timedelta(0, 3600)
105
 
    >>> rfc3339_duration_to_delta("PT24H")
106
 
    datetime.timedelta(1)
107
 
    >>> rfc3339_duration_to_delta("P1W")
108
 
    datetime.timedelta(7)
109
 
    >>> rfc3339_duration_to_delta("PT5M30S")
110
 
    datetime.timedelta(0, 330)
111
 
    >>> rfc3339_duration_to_delta("P1DT3M20S")
112
 
    datetime.timedelta(1, 200)
113
 
    """
114
 
 
115
 
    # Parsing an RFC 3339 duration with regular expressions is not
116
 
    # possible - there would have to be multiple places for the same
117
 
    # values, like seconds.  The current code, while more esoteric, is
118
 
    # cleaner without depending on a parsing library.  If Python had a
119
 
    # built-in library for parsing we would use it, but we'd like to
120
 
    # avoid excessive use of external libraries.
121
 
 
122
 
    # New type for defining tokens, syntax, and semantics all-in-one
123
 
    Token = collections.namedtuple("Token", (
124
 
        "regexp",  # To match token; if "value" is not None, must have
125
 
                   # a "group" containing digits
126
 
        "value",   # datetime.timedelta or None
127
 
        "followers"))           # Tokens valid after this token
128
 
    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
129
 
    # the "duration" ABNF definition in RFC 3339, Appendix A.
130
 
    token_end = Token(re.compile(r"$"), None, frozenset())
131
 
    token_second = Token(re.compile(r"(\d+)S"),
132
 
                         datetime.timedelta(seconds=1),
133
 
                         frozenset((token_end, )))
134
 
    token_minute = Token(re.compile(r"(\d+)M"),
135
 
                         datetime.timedelta(minutes=1),
136
 
                         frozenset((token_second, token_end)))
137
 
    token_hour = Token(re.compile(r"(\d+)H"),
138
 
                       datetime.timedelta(hours=1),
139
 
                       frozenset((token_minute, token_end)))
140
 
    token_time = Token(re.compile(r"T"),
141
 
                       None,
142
 
                       frozenset((token_hour, token_minute,
143
 
                                  token_second)))
144
 
    token_day = Token(re.compile(r"(\d+)D"),
145
 
                      datetime.timedelta(days=1),
146
 
                      frozenset((token_time, token_end)))
147
 
    token_month = Token(re.compile(r"(\d+)M"),
148
 
                        datetime.timedelta(weeks=4),
149
 
                        frozenset((token_day, token_end)))
150
 
    token_year = Token(re.compile(r"(\d+)Y"),
151
 
                       datetime.timedelta(weeks=52),
152
 
                       frozenset((token_month, token_end)))
153
 
    token_week = Token(re.compile(r"(\d+)W"),
154
 
                       datetime.timedelta(weeks=1),
155
 
                       frozenset((token_end, )))
156
 
    token_duration = Token(re.compile(r"P"), None,
157
 
                           frozenset((token_year, token_month,
158
 
                                      token_day, token_time,
159
 
                                      token_week)))
160
 
    # Define starting values:
161
 
    # Value so far
162
 
    value = datetime.timedelta()
163
 
    found_token = None
164
 
    # Following valid tokens
165
 
    followers = frozenset((token_duration, ))
166
 
    # String left to parse
167
 
    s = duration
168
 
    # Loop until end token is found
169
 
    while found_token is not token_end:
170
 
        # Search for any currently valid tokens
171
 
        for token in followers:
172
 
            match = token.regexp.match(s)
173
 
            if match is not None:
174
 
                # Token found
175
 
                if token.value is not None:
176
 
                    # Value found, parse digits
177
 
                    factor = int(match.group(1), 10)
178
 
                    # Add to value so far
179
 
                    value += factor * token.value
180
 
                # Strip token from string
181
 
                s = token.regexp.sub("", s, 1)
182
 
                # Go to found token
183
 
                found_token = token
184
 
                # Set valid next tokens
185
 
                followers = found_token.followers
186
 
                break
187
 
        else:
188
 
            # No currently valid tokens were found
189
 
            raise ValueError("Invalid RFC 3339 duration: {!r}"
190
 
                             .format(duration))
191
 
    # End token found
192
 
    return value
193
 
 
 
73
    return ("%(days)s%(hours)02d:%(minutes)02d:%(seconds)02d"
 
74
            % { "days": "%dT" % td.days if td.days else "",
 
75
                "hours": td.seconds // 3600,
 
76
                "minutes": (td.seconds % 3600) // 60,
 
77
                "seconds": td.seconds % 60,
 
78
                })
194
79
 
195
80
def string_to_delta(interval):
196
81
    """Parse a string and return a datetime.timedelta
197
 
 
198
 
    >>> string_to_delta('7d')
 
82
    
 
83
    >>> string_to_delta("7d")
199
84
    datetime.timedelta(7)
200
 
    >>> string_to_delta('60s')
 
85
    >>> string_to_delta("60s")
201
86
    datetime.timedelta(0, 60)
202
 
    >>> string_to_delta('60m')
 
87
    >>> string_to_delta("60m")
203
88
    datetime.timedelta(0, 3600)
204
 
    >>> string_to_delta('24h')
 
89
    >>> string_to_delta("24h")
205
90
    datetime.timedelta(1)
206
 
    >>> string_to_delta('1w')
 
91
    >>> string_to_delta("1w")
207
92
    datetime.timedelta(7)
208
 
    >>> string_to_delta('5m 30s')
 
93
    >>> string_to_delta("5m 30s")
209
94
    datetime.timedelta(0, 330)
210
95
    """
211
 
 
212
 
    try:
213
 
        return rfc3339_duration_to_delta(interval)
214
 
    except ValueError:
215
 
        pass
216
 
 
217
96
    value = datetime.timedelta(0)
218
 
    regexp = re.compile(r"(\d+)([dsmhw]?)")
219
 
 
 
97
    regexp = re.compile("(\d+)([dsmhw]?)")
 
98
    
220
99
    for num, suffix in regexp.findall(interval):
221
100
        if suffix == "d":
222
101
            value += datetime.timedelta(int(num))
232
111
            value += datetime.timedelta(0, 0, 0, int(num))
233
112
    return value
234
113
 
235
 
 
236
114
def print_clients(clients, keywords):
237
115
    def valuetostring(value, keyword):
238
116
        if type(value) is dbus.Boolean:
239
117
            return "Yes" if value else "No"
240
118
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
241
 
                       "ApprovalDuration", "ExtendedTimeout"):
 
119
                       "ApprovalDuration"):
242
120
            return milliseconds_to_string(value)
243
 
        return str(value)
244
 
 
 
121
        return unicode(value)
 
122
    
245
123
    # Create format string to print table rows
246
 
    format_string = " ".join("{{{key}:{width}}}".format(
247
 
        width=max(len(tablewords[key]),
248
 
                  max(len(valuetostring(client[key], key))
249
 
                      for client in clients)),
250
 
        key=key)
 
124
    format_string = " ".join("%%-%ds" %
 
125
                             max(len(tablewords[key]),
 
126
                                 max(len(valuetostring(client[key],
 
127
                                                       key))
 
128
                                     for client in
 
129
                                     clients))
251
130
                             for key in keywords)
252
131
    # Print header line
253
 
    print(format_string.format(**tablewords))
 
132
    print(format_string % tuple(tablewords[key] for key in keywords))
254
133
    for client in clients:
255
 
        print(format_string
256
 
              .format(**{key: valuetostring(client[key], key)
257
 
                         for key in keywords}))
258
 
 
 
134
        print(format_string % tuple(valuetostring(client[key], key)
 
135
                                    for key in keywords))
259
136
 
260
137
def has_actions(options):
261
138
    return any((options.enable,
277
154
                options.approve,
278
155
                options.deny))
279
156
 
280
 
 
281
157
def main():
282
158
    parser = argparse.ArgumentParser()
283
159
    parser.add_argument("--version", action="version",
284
 
                        version="%(prog)s {}".format(version),
 
160
                        version = "%%prog %s" % version,
285
161
                        help="show version number and exit")
286
162
    parser.add_argument("-a", "--all", action="store_true",
287
163
                        help="Select all clients")
288
164
    parser.add_argument("-v", "--verbose", action="store_true",
289
165
                        help="Print all fields")
290
 
    parser.add_argument("-j", "--dump-json", action="store_true",
291
 
                        help="Dump client data in JSON format")
292
166
    parser.add_argument("-e", "--enable", action="store_true",
293
167
                        help="Enable client")
294
168
    parser.add_argument("-d", "--disable", action="store_true",
322
196
    parser.add_argument("--approval-duration",
323
197
                        help="Set duration of one client approval")
324
198
    parser.add_argument("-H", "--host", help="Set host for client")
325
 
    parser.add_argument("-s", "--secret",
326
 
                        type=argparse.FileType(mode="rb"),
 
199
    parser.add_argument("-s", "--secret", type=file,
327
200
                        help="Set password blob (file) for client")
328
201
    parser.add_argument("-A", "--approve", action="store_true",
329
202
                        help="Approve any current client request")
330
203
    parser.add_argument("-D", "--deny", action="store_true",
331
204
                        help="Deny any current client request")
332
 
    parser.add_argument("--check", action="store_true",
333
 
                        help="Run self-test")
334
205
    parser.add_argument("client", nargs="*", help="Client name")
335
206
    options = parser.parse_args()
336
 
 
337
 
    if has_actions(options) and not (options.client or options.all):
 
207
    
 
208
    if has_actions(options) and not options.client and not options.all:
338
209
        parser.error("Options require clients names or --all.")
339
210
    if options.verbose and has_actions(options):
340
 
        parser.error("--verbose can only be used alone.")
341
 
    if options.dump_json and (options.verbose
342
 
                              or has_actions(options)):
343
 
        parser.error("--dump-json can only be used alone.")
 
211
        parser.error("--verbose can only be used alone or with"
 
212
                     " --all.")
344
213
    if options.all and not has_actions(options):
345
214
        parser.error("--all requires an action.")
346
 
 
347
 
    if options.check:
348
 
        fail_count, test_count = doctest.testmod()
349
 
        sys.exit(os.EX_OK if fail_count == 0 else 1)
350
 
 
 
215
    
351
216
    try:
352
217
        bus = dbus.SystemBus()
353
218
        mandos_dbus_objc = bus.get_object(busname, server_path)
354
219
    except dbus.exceptions.DBusException:
355
 
        print("Could not connect to Mandos server", file=sys.stderr)
 
220
        print("Could not connect to Mandos server",
 
221
              file=sys.stderr)
356
222
        sys.exit(1)
357
 
 
 
223
    
358
224
    mandos_serv = dbus.Interface(mandos_dbus_objc,
359
 
                                 dbus_interface=server_interface)
360
 
    mandos_serv_object_manager = dbus.Interface(
361
 
        mandos_dbus_objc, dbus_interface=dbus.OBJECT_MANAGER_IFACE)
362
 
 
363
 
    # block stderr since dbus library prints to stderr
 
225
                                 dbus_interface = server_interface)
 
226
    
 
227
    #block stderr since dbus library prints to stderr
364
228
    null = os.open(os.path.devnull, os.O_RDWR)
365
229
    stderrcopy = os.dup(sys.stderr.fileno())
366
230
    os.dup2(null, sys.stderr.fileno())
367
231
    os.close(null)
368
232
    try:
369
233
        try:
370
 
            mandos_clients = {path: ifs_and_props[client_interface]
371
 
                              for path, ifs_and_props in
372
 
                              mandos_serv_object_manager
373
 
                              .GetManagedObjects().items()
374
 
                              if client_interface in ifs_and_props}
 
234
            mandos_clients = mandos_serv.GetAllClientsWithProperties()
375
235
        finally:
376
 
            # restore stderr
 
236
            #restore stderr
377
237
            os.dup2(stderrcopy, sys.stderr.fileno())
378
238
            os.close(stderrcopy)
379
 
    except dbus.exceptions.DBusException as e:
380
 
        print("Access denied: "
381
 
              "Accessing mandos server through D-Bus: {}".format(e),
 
239
    except dbus.exceptions.DBusException:
 
240
        print("Access denied: Accessing mandos server through dbus.",
382
241
              file=sys.stderr)
383
242
        sys.exit(1)
384
 
 
 
243
    
385
244
    # Compile dict of (clients: properties) to process
386
 
    clients = {}
387
 
 
 
245
    clients={}
 
246
    
388
247
    if options.all or not options.client:
389
 
        clients = {bus.get_object(busname, path): properties
390
 
                   for path, properties in mandos_clients.items()}
 
248
        clients = dict((bus.get_object(busname, path), properties)
 
249
                       for path, properties in
 
250
                       mandos_clients.iteritems())
391
251
    else:
392
252
        for name in options.client:
393
 
            for path, client in mandos_clients.items():
 
253
            for path, client in mandos_clients.iteritems():
394
254
                if client["Name"] == name:
395
255
                    client_objc = bus.get_object(busname, path)
396
256
                    clients[client_objc] = client
397
257
                    break
398
258
            else:
399
 
                print("Client not found on server: {!r}"
400
 
                      .format(name), file=sys.stderr)
 
259
                print("Client not found on server: %r" % name,
 
260
                      file=sys.stderr)
401
261
                sys.exit(1)
402
 
 
 
262
    
403
263
    if not has_actions(options) and clients:
404
 
        if options.verbose or options.dump_json:
405
 
            keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
406
 
                        "Created", "Interval", "Host", "Fingerprint",
407
 
                        "CheckerRunning", "LastEnabled",
408
 
                        "ApprovalPending", "ApprovedByDefault",
 
264
        if options.verbose:
 
265
            keywords = ("Name", "Enabled", "Timeout",
 
266
                        "LastCheckedOK", "Created", "Interval",
 
267
                        "Host", "Fingerprint", "CheckerRunning",
 
268
                        "LastEnabled", "ApprovalPending",
 
269
                        "ApprovedByDefault",
409
270
                        "LastApprovalRequest", "ApprovalDelay",
410
271
                        "ApprovalDuration", "Checker",
411
 
                        "ExtendedTimeout", "Expires",
412
 
                        "LastCheckerStatus")
 
272
                        "ExtendedTimeout")
413
273
        else:
414
274
            keywords = defaultkeywords
415
 
 
416
 
        if options.dump_json:
417
 
            json.dump({client["Name"]: {key:
418
 
                                        bool(client[key])
419
 
                                        if isinstance(client[key],
420
 
                                                      dbus.Boolean)
421
 
                                        else client[key]
422
 
                                        for key in keywords}
423
 
                       for client in clients.values()},
424
 
                      fp=sys.stdout, indent=4,
425
 
                      separators=(',', ': '))
426
 
            print()
427
 
        else:
428
 
            print_clients(clients.values(), keywords)
 
275
        
 
276
        print_clients(clients.values(), keywords)
429
277
    else:
430
278
        # Process each client in the list by all selected options
431
279
        for client in clients:
432
 
 
433
 
            def set_client_prop(prop, value):
434
 
                """Set a Client D-Bus property"""
435
 
                client.Set(client_interface, prop, value,
436
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
437
 
 
438
 
            def set_client_prop_ms(prop, value):
439
 
                """Set a Client D-Bus property, converted
440
 
                from a string to milliseconds."""
441
 
                set_client_prop(prop,
442
 
                                string_to_delta(value).total_seconds()
443
 
                                * 1000)
444
 
 
445
280
            if options.remove:
446
281
                mandos_serv.RemoveClient(client.__dbus_object_path__)
447
282
            if options.enable:
448
 
                set_client_prop("Enabled", dbus.Boolean(True))
 
283
                client.Enable(dbus_interface=client_interface)
449
284
            if options.disable:
450
 
                set_client_prop("Enabled", dbus.Boolean(False))
 
285
                client.Disable(dbus_interface=client_interface)
451
286
            if options.bump_timeout:
452
 
                set_client_prop("LastCheckedOK", "")
 
287
                client.CheckedOK(dbus_interface=client_interface)
453
288
            if options.start_checker:
454
 
                set_client_prop("CheckerRunning", dbus.Boolean(True))
 
289
                client.StartChecker(dbus_interface=client_interface)
455
290
            if options.stop_checker:
456
 
                set_client_prop("CheckerRunning", dbus.Boolean(False))
 
291
                client.StopChecker(dbus_interface=client_interface)
457
292
            if options.is_enabled:
458
 
                if client.Get(client_interface, "Enabled",
459
 
                              dbus_interface=dbus.PROPERTIES_IFACE):
460
 
                    sys.exit(0)
461
 
                else:
462
 
                    sys.exit(1)
 
293
                sys.exit(0 if client.Get(client_interface,
 
294
                                         "Enabled",
 
295
                                         dbus_interface=
 
296
                                         dbus.PROPERTIES_IFACE)
 
297
                         else 1)
463
298
            if options.checker is not None:
464
 
                set_client_prop("Checker", options.checker)
 
299
                client.Set(client_interface, "Checker",
 
300
                           options.checker,
 
301
                           dbus_interface=dbus.PROPERTIES_IFACE)
465
302
            if options.host is not None:
466
 
                set_client_prop("Host", options.host)
 
303
                client.Set(client_interface, "Host", options.host,
 
304
                           dbus_interface=dbus.PROPERTIES_IFACE)
467
305
            if options.interval is not None:
468
 
                set_client_prop_ms("Interval", options.interval)
 
306
                client.Set(client_interface, "Interval",
 
307
                           timedelta_to_milliseconds
 
308
                           (string_to_delta(options.interval)),
 
309
                           dbus_interface=dbus.PROPERTIES_IFACE)
469
310
            if options.approval_delay is not None:
470
 
                set_client_prop_ms("ApprovalDelay",
471
 
                                   options.approval_delay)
 
311
                client.Set(client_interface, "ApprovalDelay",
 
312
                           timedelta_to_milliseconds
 
313
                           (string_to_delta(options.
 
314
                                            approval_delay)),
 
315
                           dbus_interface=dbus.PROPERTIES_IFACE)
472
316
            if options.approval_duration is not None:
473
 
                set_client_prop_ms("ApprovalDuration",
474
 
                                   options.approval_duration)
 
317
                client.Set(client_interface, "ApprovalDuration",
 
318
                           timedelta_to_milliseconds
 
319
                           (string_to_delta(options.
 
320
                                            approval_duration)),
 
321
                           dbus_interface=dbus.PROPERTIES_IFACE)
475
322
            if options.timeout is not None:
476
 
                set_client_prop_ms("Timeout", options.timeout)
 
323
                client.Set(client_interface, "Timeout",
 
324
                           timedelta_to_milliseconds
 
325
                           (string_to_delta(options.timeout)),
 
326
                           dbus_interface=dbus.PROPERTIES_IFACE)
477
327
            if options.extended_timeout is not None:
478
 
                set_client_prop_ms("ExtendedTimeout",
479
 
                                   options.extended_timeout)
 
328
                client.Set(client_interface, "ExtendedTimeout",
 
329
                           timedelta_to_milliseconds
 
330
                           (string_to_delta(options.extended_timeout)),
 
331
                           dbus_interface=dbus.PROPERTIES_IFACE)
480
332
            if options.secret is not None:
481
 
                set_client_prop("Secret",
482
 
                                dbus.ByteArray(options.secret.read()))
 
333
                client.Set(client_interface, "Secret",
 
334
                           dbus.ByteArray(options.secret.read()),
 
335
                           dbus_interface=dbus.PROPERTIES_IFACE)
483
336
            if options.approved_by_default is not None:
484
 
                set_client_prop("ApprovedByDefault",
485
 
                                dbus.Boolean(options
486
 
                                             .approved_by_default))
 
337
                client.Set(client_interface, "ApprovedByDefault",
 
338
                           dbus.Boolean(options
 
339
                                        .approved_by_default),
 
340
                           dbus_interface=dbus.PROPERTIES_IFACE)
487
341
            if options.approve:
488
342
                client.Approve(dbus.Boolean(True),
489
343
                               dbus_interface=client_interface)
491
345
                client.Approve(dbus.Boolean(False),
492
346
                               dbus_interface=client_interface)
493
347
 
494
 
 
495
348
if __name__ == "__main__":
496
349
    main()