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  • Committer: Teddy Hogeborn
  • Date: 2016-07-10 03:43:48 UTC
  • Revision ID: teddy@recompile.se-20160710034348-5qc50yeyyn7peirm
Update RFC references to their modern equivalents.

* plugins.d/mandos-client.xml (SEE ALSO): Replace RFC 4346 (TLS 1.1)
  with RFC 5246 (TLS 1.2), and replace RFC 5081 (TLS OpenPGP) with its
  replacement RFC 6091.

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Lines of Context:
mandos-ctl
3
3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
5
# 
6
 
# Copyright © 2008-2012 Teddy Hogeborn
7
 
# Copyright © 2008-2012 Björn Påhlsson
 
6
# Copyright © 2008-2016 Teddy Hogeborn
 
7
# Copyright © 2008-2016 Björn Påhlsson
8
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
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 <http://www.gnu.org/licenses/>.
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
21
22
# 
22
23
# Contact the authors at <mandos@recompile.se>.
23
24
# 
25
26
from __future__ import (division, absolute_import, print_function,
26
27
                        unicode_literals)
27
28
 
 
29
try:
 
30
    from future_builtins import *
 
31
except ImportError:
 
32
    pass
 
33
 
28
34
import sys
29
 
import dbus
30
35
import argparse
31
36
import locale
32
37
import datetime
33
38
import re
34
39
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
35
48
 
36
49
locale.setlocale(locale.LC_ALL, "")
37
50
 
52
65
    "ApprovalDelay": "Approval Delay",
53
66
    "ApprovalDuration": "Approval Duration",
54
67
    "Checker": "Checker",
55
 
    "ExtendedTimeout" : "Extended Timeout"
56
 
    }
 
68
    "ExtendedTimeout": "Extended Timeout",
 
69
    "Expires": "Expires",
 
70
    "LastCheckerStatus": "Last Checker Status",
 
71
}
57
72
defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
58
73
domain = "se.recompile"
59
74
busname = domain + ".Mandos"
60
75
server_path = "/"
61
76
server_interface = domain + ".Mandos"
62
77
client_interface = domain + ".Mandos.Client"
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))
 
78
version = "1.7.10"
 
79
 
 
80
 
 
81
try:
 
82
    dbus.OBJECT_MANAGER_IFACE
 
83
except AttributeError:
 
84
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
70
85
 
71
86
def milliseconds_to_string(ms):
72
87
    td = datetime.timedelta(0, 0, 0, ms)
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
 
                })
 
88
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}".format(
 
89
        days = "{}T".format(td.days) if td.days else "",
 
90
        hours = td.seconds // 3600,
 
91
        minutes = (td.seconds % 3600) // 60,
 
92
        seconds = td.seconds % 60))
 
93
 
 
94
 
 
95
def rfc3339_duration_to_delta(duration):
 
96
    """Parse an RFC 3339 "duration" and return a datetime.timedelta
 
97
    
 
98
    >>> rfc3339_duration_to_delta("P7D")
 
99
    datetime.timedelta(7)
 
100
    >>> rfc3339_duration_to_delta("PT60S")
 
101
    datetime.timedelta(0, 60)
 
102
    >>> rfc3339_duration_to_delta("PT60M")
 
103
    datetime.timedelta(0, 3600)
 
104
    >>> rfc3339_duration_to_delta("PT24H")
 
105
    datetime.timedelta(1)
 
106
    >>> rfc3339_duration_to_delta("P1W")
 
107
    datetime.timedelta(7)
 
108
    >>> rfc3339_duration_to_delta("PT5M30S")
 
109
    datetime.timedelta(0, 330)
 
110
    >>> rfc3339_duration_to_delta("P1DT3M20S")
 
111
    datetime.timedelta(1, 200)
 
112
    """
 
113
    
 
114
    # Parsing an RFC 3339 duration with regular expressions is not
 
115
    # possible - there would have to be multiple places for the same
 
116
    # values, like seconds.  The current code, while more esoteric, is
 
117
    # cleaner without depending on a parsing library.  If Python had a
 
118
    # built-in library for parsing we would use it, but we'd like to
 
119
    # avoid excessive use of external libraries.
 
120
    
 
121
    # New type for defining tokens, syntax, and semantics all-in-one
 
122
    Token = collections.namedtuple("Token", (
 
123
        "regexp",  # To match token; if "value" is not None, must have
 
124
                   # a "group" containing digits
 
125
        "value",   # datetime.timedelta or None
 
126
        "followers"))           # Tokens valid after this token
 
127
    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
 
128
    # the "duration" ABNF definition in RFC 3339, Appendix A.
 
129
    token_end = Token(re.compile(r"$"), None, frozenset())
 
130
    token_second = Token(re.compile(r"(\d+)S"),
 
131
                         datetime.timedelta(seconds=1),
 
132
                         frozenset((token_end, )))
 
133
    token_minute = Token(re.compile(r"(\d+)M"),
 
134
                         datetime.timedelta(minutes=1),
 
135
                         frozenset((token_second, token_end)))
 
136
    token_hour = Token(re.compile(r"(\d+)H"),
 
137
                       datetime.timedelta(hours=1),
 
138
                       frozenset((token_minute, token_end)))
 
139
    token_time = Token(re.compile(r"T"),
 
140
                       None,
 
141
                       frozenset((token_hour, token_minute,
 
142
                                  token_second)))
 
143
    token_day = Token(re.compile(r"(\d+)D"),
 
144
                      datetime.timedelta(days=1),
 
145
                      frozenset((token_time, token_end)))
 
146
    token_month = Token(re.compile(r"(\d+)M"),
 
147
                        datetime.timedelta(weeks=4),
 
148
                        frozenset((token_day, token_end)))
 
149
    token_year = Token(re.compile(r"(\d+)Y"),
 
150
                       datetime.timedelta(weeks=52),
 
151
                       frozenset((token_month, token_end)))
 
152
    token_week = Token(re.compile(r"(\d+)W"),
 
153
                       datetime.timedelta(weeks=1),
 
154
                       frozenset((token_end, )))
 
155
    token_duration = Token(re.compile(r"P"), None,
 
156
                           frozenset((token_year, token_month,
 
157
                                      token_day, token_time,
 
158
                                      token_week)))
 
159
    # Define starting values
 
160
    value = datetime.timedelta() # Value so far
 
161
    found_token = None
 
162
    followers = frozenset((token_duration, )) # Following valid tokens
 
163
    s = duration                # String left to parse
 
164
    # Loop until end token is found
 
165
    while found_token is not token_end:
 
166
        # Search for any currently valid tokens
 
167
        for token in followers:
 
168
            match = token.regexp.match(s)
 
169
            if match is not None:
 
170
                # Token found
 
171
                if token.value is not None:
 
172
                    # Value found, parse digits
 
173
                    factor = int(match.group(1), 10)
 
174
                    # Add to value so far
 
175
                    value += factor * token.value
 
176
                # Strip token from string
 
177
                s = token.regexp.sub("", s, 1)
 
178
                # Go to found token
 
179
                found_token = token
 
180
                # Set valid next tokens
 
181
                followers = found_token.followers
 
182
                break
 
183
        else:
 
184
            # No currently valid tokens were found
 
185
            raise ValueError("Invalid RFC 3339 duration: {!r}"
 
186
                             .format(duration))
 
187
    # End token found
 
188
    return value
 
189
 
79
190
 
80
191
def string_to_delta(interval):
81
192
    """Parse a string and return a datetime.timedelta
82
193
    
83
 
    >>> string_to_delta("7d")
 
194
    >>> string_to_delta('7d')
84
195
    datetime.timedelta(7)
85
 
    >>> string_to_delta("60s")
 
196
    >>> string_to_delta('60s')
86
197
    datetime.timedelta(0, 60)
87
 
    >>> string_to_delta("60m")
 
198
    >>> string_to_delta('60m')
88
199
    datetime.timedelta(0, 3600)
89
 
    >>> string_to_delta("24h")
 
200
    >>> string_to_delta('24h')
90
201
    datetime.timedelta(1)
91
 
    >>> string_to_delta("1w")
 
202
    >>> string_to_delta('1w')
92
203
    datetime.timedelta(7)
93
 
    >>> string_to_delta("5m 30s")
 
204
    >>> string_to_delta('5m 30s')
94
205
    datetime.timedelta(0, 330)
95
206
    """
 
207
    
 
208
    try:
 
209
        return rfc3339_duration_to_delta(interval)
 
210
    except ValueError:
 
211
        pass
 
212
    
96
213
    value = datetime.timedelta(0)
97
 
    regexp = re.compile("(\d+)([dsmhw]?)")
 
214
    regexp = re.compile(r"(\d+)([dsmhw]?)")
98
215
    
99
216
    for num, suffix in regexp.findall(interval):
100
217
        if suffix == "d":
111
228
            value += datetime.timedelta(0, 0, 0, int(num))
112
229
    return value
113
230
 
 
231
 
114
232
def print_clients(clients, keywords):
115
233
    def valuetostring(value, keyword):
116
234
        if type(value) is dbus.Boolean:
117
235
            return "Yes" if value else "No"
118
236
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
119
 
                       "ApprovalDuration"):
 
237
                       "ApprovalDuration", "ExtendedTimeout"):
120
238
            return milliseconds_to_string(value)
121
 
        return unicode(value)
 
239
        return str(value)
122
240
    
123
241
    # Create format string to print table rows
124
 
    format_string = " ".join("%%-%ds" %
125
 
                             max(len(tablewords[key]),
126
 
                                 max(len(valuetostring(client[key],
127
 
                                                       key))
128
 
                                     for client in
129
 
                                     clients))
 
242
    format_string = " ".join("{{{key}:{width}}}".format(
 
243
        width = max(len(tablewords[key]),
 
244
                    max(len(valuetostring(client[key], key))
 
245
                        for client in clients)),
 
246
        key = key)
130
247
                             for key in keywords)
131
248
    # Print header line
132
 
    print(format_string % tuple(tablewords[key] for key in keywords))
 
249
    print(format_string.format(**tablewords))
133
250
    for client in clients:
134
 
        print(format_string % tuple(valuetostring(client[key], key)
135
 
                                    for key in keywords))
 
251
        print(format_string.format(**{
 
252
            key: valuetostring(client[key], key)
 
253
            for key in keywords }))
 
254
 
136
255
 
137
256
def has_actions(options):
138
257
    return any((options.enable,
154
273
                options.approve,
155
274
                options.deny))
156
275
 
 
276
 
157
277
def main():
158
278
    parser = argparse.ArgumentParser()
159
279
    parser.add_argument("--version", action="version",
160
 
                        version = "%%prog %s" % version,
 
280
                        version = "%(prog)s {}".format(version),
161
281
                        help="show version number and exit")
162
282
    parser.add_argument("-a", "--all", action="store_true",
163
283
                        help="Select all clients")
164
284
    parser.add_argument("-v", "--verbose", action="store_true",
165
285
                        help="Print all fields")
 
286
    parser.add_argument("-j", "--dump-json", action="store_true",
 
287
                        help="Dump client data in JSON format")
166
288
    parser.add_argument("-e", "--enable", action="store_true",
167
289
                        help="Enable client")
168
290
    parser.add_argument("-d", "--disable", action="store_true",
196
318
    parser.add_argument("--approval-duration",
197
319
                        help="Set duration of one client approval")
198
320
    parser.add_argument("-H", "--host", help="Set host for client")
199
 
    parser.add_argument("-s", "--secret", type=file,
 
321
    parser.add_argument("-s", "--secret",
 
322
                        type=argparse.FileType(mode="rb"),
200
323
                        help="Set password blob (file) for client")
201
324
    parser.add_argument("-A", "--approve", action="store_true",
202
325
                        help="Approve any current client request")
203
326
    parser.add_argument("-D", "--deny", action="store_true",
204
327
                        help="Deny any current client request")
 
328
    parser.add_argument("--check", action="store_true",
 
329
                        help="Run self-test")
205
330
    parser.add_argument("client", nargs="*", help="Client name")
206
331
    options = parser.parse_args()
207
332
    
208
 
    if has_actions(options) and not options.client and not options.all:
 
333
    if has_actions(options) and not (options.client or options.all):
209
334
        parser.error("Options require clients names or --all.")
210
335
    if options.verbose and has_actions(options):
211
 
        parser.error("--verbose can only be used alone or with"
212
 
                     " --all.")
 
336
        parser.error("--verbose can only be used alone.")
 
337
    if options.dump_json and (options.verbose or has_actions(options)):
 
338
        parser.error("--dump-json can only be used alone.")
213
339
    if options.all and not has_actions(options):
214
340
        parser.error("--all requires an action.")
215
341
    
 
342
    if options.check:
 
343
        fail_count, test_count = doctest.testmod()
 
344
        sys.exit(os.EX_OK if fail_count == 0 else 1)
 
345
    
216
346
    try:
217
347
        bus = dbus.SystemBus()
218
348
        mandos_dbus_objc = bus.get_object(busname, server_path)
219
349
    except dbus.exceptions.DBusException:
220
 
        print("Could not connect to Mandos server",
221
 
              file=sys.stderr)
 
350
        print("Could not connect to Mandos server", file=sys.stderr)
222
351
        sys.exit(1)
223
352
    
224
353
    mandos_serv = dbus.Interface(mandos_dbus_objc,
225
354
                                 dbus_interface = server_interface)
 
355
    mandos_serv_object_manager = dbus.Interface(
 
356
        mandos_dbus_objc, dbus_interface = dbus.OBJECT_MANAGER_IFACE)
226
357
    
227
358
    #block stderr since dbus library prints to stderr
228
359
    null = os.open(os.path.devnull, os.O_RDWR)
231
362
    os.close(null)
232
363
    try:
233
364
        try:
234
 
            mandos_clients = mandos_serv.GetAllClientsWithProperties()
 
365
            mandos_clients = { path: ifs_and_props[client_interface]
 
366
                               for path, ifs_and_props in
 
367
                               mandos_serv_object_manager
 
368
                               .GetManagedObjects().items()
 
369
                               if client_interface in ifs_and_props }
235
370
        finally:
236
371
            #restore stderr
237
372
            os.dup2(stderrcopy, sys.stderr.fileno())
238
373
            os.close(stderrcopy)
239
 
    except dbus.exceptions.DBusException:
240
 
        print("Access denied: Accessing mandos server through dbus.",
241
 
              file=sys.stderr)
 
374
    except dbus.exceptions.DBusException as e:
 
375
        print("Access denied: Accessing mandos server through D-Bus: {}"
 
376
              .format(e), file=sys.stderr)
242
377
        sys.exit(1)
243
378
    
244
379
    # Compile dict of (clients: properties) to process
245
380
    clients={}
246
381
    
247
382
    if options.all or not options.client:
248
 
        clients = dict((bus.get_object(busname, path), properties)
249
 
                       for path, properties in
250
 
                       mandos_clients.iteritems())
 
383
        clients = { bus.get_object(busname, path): properties
 
384
                    for path, properties in mandos_clients.items() }
251
385
    else:
252
386
        for name in options.client:
253
 
            for path, client in mandos_clients.iteritems():
 
387
            for path, client in mandos_clients.items():
254
388
                if client["Name"] == name:
255
389
                    client_objc = bus.get_object(busname, path)
256
390
                    clients[client_objc] = client
257
391
                    break
258
392
            else:
259
 
                print("Client not found on server: %r" % name,
260
 
                      file=sys.stderr)
 
393
                print("Client not found on server: {!r}"
 
394
                      .format(name), file=sys.stderr)
261
395
                sys.exit(1)
262
396
    
263
397
    if not has_actions(options) and clients:
264
 
        if options.verbose:
265
 
            keywords = ("Name", "Enabled", "Timeout",
266
 
                        "LastCheckedOK", "Created", "Interval",
267
 
                        "Host", "Fingerprint", "CheckerRunning",
268
 
                        "LastEnabled", "ApprovalPending",
269
 
                        "ApprovedByDefault",
 
398
        if options.verbose or options.dump_json:
 
399
            keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
 
400
                        "Created", "Interval", "Host", "Fingerprint",
 
401
                        "CheckerRunning", "LastEnabled",
 
402
                        "ApprovalPending", "ApprovedByDefault",
270
403
                        "LastApprovalRequest", "ApprovalDelay",
271
404
                        "ApprovalDuration", "Checker",
272
 
                        "ExtendedTimeout")
 
405
                        "ExtendedTimeout", "Expires",
 
406
                        "LastCheckerStatus")
273
407
        else:
274
408
            keywords = defaultkeywords
275
409
        
276
 
        print_clients(clients.values(), keywords)
 
410
        if options.dump_json:
 
411
            json.dump({client["Name"]: {key:
 
412
                                        bool(client[key])
 
413
                                        if isinstance(client[key],
 
414
                                                      dbus.Boolean)
 
415
                                        else client[key]
 
416
                                        for key in keywords }
 
417
                       for client in clients.values() },
 
418
                      fp = sys.stdout, indent = 4,
 
419
                      separators = (',', ': '))
 
420
            print()
 
421
        else:
 
422
            print_clients(clients.values(), keywords)
277
423
    else:
278
424
        # Process each client in the list by all selected options
279
425
        for client in clients:
 
426
            
 
427
            def set_client_prop(prop, value):
 
428
                """Set a Client D-Bus property"""
 
429
                client.Set(client_interface, prop, value,
 
430
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
431
            
 
432
            def set_client_prop_ms(prop, value):
 
433
                """Set a Client D-Bus property, converted
 
434
                from a string to milliseconds."""
 
435
                set_client_prop(prop,
 
436
                                string_to_delta(value).total_seconds()
 
437
                                * 1000)
 
438
            
280
439
            if options.remove:
281
440
                mandos_serv.RemoveClient(client.__dbus_object_path__)
282
441
            if options.enable:
283
 
                client.Enable(dbus_interface=client_interface)
 
442
                set_client_prop("Enabled", dbus.Boolean(True))
284
443
            if options.disable:
285
 
                client.Disable(dbus_interface=client_interface)
 
444
                set_client_prop("Enabled", dbus.Boolean(False))
286
445
            if options.bump_timeout:
287
 
                client.CheckedOK(dbus_interface=client_interface)
 
446
                set_client_prop("LastCheckedOK", "")
288
447
            if options.start_checker:
289
 
                client.StartChecker(dbus_interface=client_interface)
 
448
                set_client_prop("CheckerRunning", dbus.Boolean(True))
290
449
            if options.stop_checker:
291
 
                client.StopChecker(dbus_interface=client_interface)
 
450
                set_client_prop("CheckerRunning", dbus.Boolean(False))
292
451
            if options.is_enabled:
293
452
                sys.exit(0 if client.Get(client_interface,
294
453
                                         "Enabled",
296
455
                                         dbus.PROPERTIES_IFACE)
297
456
                         else 1)
298
457
            if options.checker is not None:
299
 
                client.Set(client_interface, "Checker",
300
 
                           options.checker,
301
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
458
                set_client_prop("Checker", options.checker)
302
459
            if options.host is not None:
303
 
                client.Set(client_interface, "Host", options.host,
304
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
460
                set_client_prop("Host", options.host)
305
461
            if options.interval is not None:
306
 
                client.Set(client_interface, "Interval",
307
 
                           timedelta_to_milliseconds
308
 
                           (string_to_delta(options.interval)),
309
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
462
                set_client_prop_ms("Interval", options.interval)
310
463
            if options.approval_delay is not None:
311
 
                client.Set(client_interface, "ApprovalDelay",
312
 
                           timedelta_to_milliseconds
313
 
                           (string_to_delta(options.
314
 
                                            approval_delay)),
315
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
464
                set_client_prop_ms("ApprovalDelay",
 
465
                                   options.approval_delay)
316
466
            if options.approval_duration is not None:
317
 
                client.Set(client_interface, "ApprovalDuration",
318
 
                           timedelta_to_milliseconds
319
 
                           (string_to_delta(options.
320
 
                                            approval_duration)),
321
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
467
                set_client_prop_ms("ApprovalDuration",
 
468
                                   options.approval_duration)
322
469
            if options.timeout is not None:
323
 
                client.Set(client_interface, "Timeout",
324
 
                           timedelta_to_milliseconds
325
 
                           (string_to_delta(options.timeout)),
326
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
470
                set_client_prop_ms("Timeout", options.timeout)
327
471
            if options.extended_timeout is not None:
328
 
                client.Set(client_interface, "ExtendedTimeout",
329
 
                           timedelta_to_milliseconds
330
 
                           (string_to_delta(options.extended_timeout)),
331
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
472
                set_client_prop_ms("ExtendedTimeout",
 
473
                                   options.extended_timeout)
332
474
            if options.secret is not None:
333
 
                client.Set(client_interface, "Secret",
334
 
                           dbus.ByteArray(options.secret.read()),
335
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
475
                set_client_prop("Secret",
 
476
                                dbus.ByteArray(options.secret.read()))
336
477
            if options.approved_by_default is not None:
337
 
                client.Set(client_interface, "ApprovedByDefault",
338
 
                           dbus.Boolean(options
339
 
                                        .approved_by_default),
340
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
478
                set_client_prop("ApprovedByDefault",
 
479
                                dbus.Boolean(options
 
480
                                             .approved_by_default))
341
481
            if options.approve:
342
482
                client.Approve(dbus.Boolean(True),
343
483
                               dbus_interface=client_interface)
345
485
                client.Approve(dbus.Boolean(False),
346
486
                               dbus_interface=client_interface)
347
487
 
 
488
 
348
489
if __name__ == "__main__":
349
490
    main()