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  • Committer: Teddy Hogeborn
  • Date: 2017-02-23 21:14:58 UTC
  • mfrom: (359 release)
  • mto: (237.7.594 trunk)
  • mto: This revision was merged to the branch mainline in revision 360.
  • Revision ID: teddy@recompile.se-20170223211458-2rv7ec5bxmk4ts81
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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 © 2008-2012 Teddy Hogeborn
7
 
# Copyright © 2008-2012 Björn Påhlsson
8
 
# 
 
5
#
 
6
# Copyright © 2008-2017 Teddy Hogeborn
 
7
# Copyright © 2008-2017 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
20
# along with this program.  If not, see
21
21
# <http://www.gnu.org/licenses/>.
22
 
# 
 
22
#
23
23
# Contact the authors at <mandos@recompile.se>.
24
 
# 
 
24
#
25
25
 
26
26
from __future__ import (division, absolute_import, print_function,
27
27
                        unicode_literals)
28
28
 
 
29
try:
 
30
    from future_builtins import *
 
31
except ImportError:
 
32
    pass
 
33
 
29
34
import sys
30
 
import dbus
31
35
import argparse
32
36
import locale
33
37
import datetime
34
38
import re
35
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
36
48
 
37
49
locale.setlocale(locale.LC_ALL, "")
38
50
 
53
65
    "ApprovalDelay": "Approval Delay",
54
66
    "ApprovalDuration": "Approval Duration",
55
67
    "Checker": "Checker",
56
 
    "ExtendedTimeout" : "Extended Timeout"
57
 
    }
 
68
    "ExtendedTimeout": "Extended Timeout",
 
69
    "Expires": "Expires",
 
70
    "LastCheckerStatus": "Last Checker Status",
 
71
}
58
72
defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
59
73
domain = "se.recompile"
60
74
busname = domain + ".Mandos"
61
75
server_path = "/"
62
76
server_interface = domain + ".Mandos"
63
77
client_interface = domain + ".Mandos.Client"
64
 
version = "1.5.3"
65
 
 
66
 
def timedelta_to_milliseconds(td):
67
 
    """Convert a datetime.timedelta object to milliseconds"""
68
 
    return ((td.days * 24 * 60 * 60 * 1000)
69
 
            + (td.seconds * 1000)
70
 
            + (td.microseconds // 1000))
 
78
version = "1.7.15"
 
79
 
 
80
 
 
81
try:
 
82
    dbus.OBJECT_MANAGER_IFACE
 
83
except AttributeError:
 
84
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
85
 
71
86
 
72
87
def milliseconds_to_string(ms):
73
88
    td = datetime.timedelta(0, 0, 0, ms)
74
89
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
75
 
            .format(days = "{0}T".format(td.days) if td.days else "",
76
 
                    hours = td.seconds // 3600,
77
 
                    minutes = (td.seconds % 3600) // 60,
78
 
                    seconds = td.seconds % 60,
79
 
                    ))
 
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
 
80
194
 
81
195
def string_to_delta(interval):
82
196
    """Parse a string and return a datetime.timedelta
83
 
    
84
 
    >>> string_to_delta("7d")
 
197
 
 
198
    >>> string_to_delta('7d')
85
199
    datetime.timedelta(7)
86
 
    >>> string_to_delta("60s")
 
200
    >>> string_to_delta('60s')
87
201
    datetime.timedelta(0, 60)
88
 
    >>> string_to_delta("60m")
 
202
    >>> string_to_delta('60m')
89
203
    datetime.timedelta(0, 3600)
90
 
    >>> string_to_delta("24h")
 
204
    >>> string_to_delta('24h')
91
205
    datetime.timedelta(1)
92
 
    >>> string_to_delta("1w")
 
206
    >>> string_to_delta('1w')
93
207
    datetime.timedelta(7)
94
 
    >>> string_to_delta("5m 30s")
 
208
    >>> string_to_delta('5m 30s')
95
209
    datetime.timedelta(0, 330)
96
210
    """
 
211
 
 
212
    try:
 
213
        return rfc3339_duration_to_delta(interval)
 
214
    except ValueError:
 
215
        pass
 
216
 
97
217
    value = datetime.timedelta(0)
98
 
    regexp = re.compile("(\d+)([dsmhw]?)")
99
 
    
 
218
    regexp = re.compile(r"(\d+)([dsmhw]?)")
 
219
 
100
220
    for num, suffix in regexp.findall(interval):
101
221
        if suffix == "d":
102
222
            value += datetime.timedelta(int(num))
112
232
            value += datetime.timedelta(0, 0, 0, int(num))
113
233
    return value
114
234
 
 
235
 
115
236
def print_clients(clients, keywords):
116
237
    def valuetostring(value, keyword):
117
238
        if type(value) is dbus.Boolean:
119
240
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
120
241
                       "ApprovalDuration", "ExtendedTimeout"):
121
242
            return milliseconds_to_string(value)
122
 
        return unicode(value)
123
 
    
 
243
        return str(value)
 
244
 
124
245
    # Create format string to print table rows
125
246
    format_string = " ".join("{{{key}:{width}}}".format(
126
 
            width = max(len(tablewords[key]),
127
 
                        max(len(valuetostring(client[key],
128
 
                                              key))
129
 
                            for client in
130
 
                            clients)),
131
 
            key = key) for key in keywords)
 
247
        width=max(len(tablewords[key]),
 
248
                  max(len(valuetostring(client[key], key))
 
249
                      for client in clients)),
 
250
        key=key)
 
251
                             for key in keywords)
132
252
    # Print header line
133
253
    print(format_string.format(**tablewords))
134
254
    for client in clients:
135
 
        print(format_string.format(**dict((key,
136
 
                                           valuetostring(client[key],
137
 
                                                         key))
138
 
                                          for key in keywords)))
 
255
        print(format_string
 
256
              .format(**{key: valuetostring(client[key], key)
 
257
                         for key in keywords}))
 
258
 
139
259
 
140
260
def has_actions(options):
141
261
    return any((options.enable,
157
277
                options.approve,
158
278
                options.deny))
159
279
 
 
280
 
160
281
def main():
161
282
    parser = argparse.ArgumentParser()
162
283
    parser.add_argument("--version", action="version",
163
 
                        version = "%(prog)s {0}".format(version),
 
284
                        version="%(prog)s {}".format(version),
164
285
                        help="show version number and exit")
165
286
    parser.add_argument("-a", "--all", action="store_true",
166
287
                        help="Select all clients")
167
288
    parser.add_argument("-v", "--verbose", action="store_true",
168
289
                        help="Print all fields")
 
290
    parser.add_argument("-j", "--dump-json", action="store_true",
 
291
                        help="Dump client data in JSON format")
169
292
    parser.add_argument("-e", "--enable", action="store_true",
170
293
                        help="Enable client")
171
294
    parser.add_argument("-d", "--disable", action="store_true",
199
322
    parser.add_argument("--approval-duration",
200
323
                        help="Set duration of one client approval")
201
324
    parser.add_argument("-H", "--host", help="Set host for client")
202
 
    parser.add_argument("-s", "--secret", type=file,
 
325
    parser.add_argument("-s", "--secret",
 
326
                        type=argparse.FileType(mode="rb"),
203
327
                        help="Set password blob (file) for client")
204
328
    parser.add_argument("-A", "--approve", action="store_true",
205
329
                        help="Approve any current client request")
206
330
    parser.add_argument("-D", "--deny", action="store_true",
207
331
                        help="Deny any current client request")
 
332
    parser.add_argument("--check", action="store_true",
 
333
                        help="Run self-test")
208
334
    parser.add_argument("client", nargs="*", help="Client name")
209
335
    options = parser.parse_args()
210
 
    
 
336
 
211
337
    if has_actions(options) and not (options.client or options.all):
212
338
        parser.error("Options require clients names or --all.")
213
339
    if options.verbose and has_actions(options):
214
 
        parser.error("--verbose can only be used alone or with"
215
 
                     " --all.")
 
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.")
216
344
    if options.all and not has_actions(options):
217
345
        parser.error("--all requires an action.")
218
 
    
 
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
 
219
351
    try:
220
352
        bus = dbus.SystemBus()
221
353
        mandos_dbus_objc = bus.get_object(busname, server_path)
222
354
    except dbus.exceptions.DBusException:
223
 
        print("Could not connect to Mandos server",
224
 
              file=sys.stderr)
 
355
        print("Could not connect to Mandos server", file=sys.stderr)
225
356
        sys.exit(1)
226
 
    
 
357
 
227
358
    mandos_serv = dbus.Interface(mandos_dbus_objc,
228
 
                                 dbus_interface = server_interface)
229
 
    
230
 
    #block stderr since dbus library prints to stderr
 
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
231
364
    null = os.open(os.path.devnull, os.O_RDWR)
232
365
    stderrcopy = os.dup(sys.stderr.fileno())
233
366
    os.dup2(null, sys.stderr.fileno())
234
367
    os.close(null)
235
368
    try:
236
369
        try:
237
 
            mandos_clients = mandos_serv.GetAllClientsWithProperties()
 
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}
238
375
        finally:
239
 
            #restore stderr
 
376
            # restore stderr
240
377
            os.dup2(stderrcopy, sys.stderr.fileno())
241
378
            os.close(stderrcopy)
242
 
    except dbus.exceptions.DBusException:
243
 
        print("Access denied: Accessing mandos server through dbus.",
 
379
    except dbus.exceptions.DBusException as e:
 
380
        print("Access denied: "
 
381
              "Accessing mandos server through D-Bus: {}".format(e),
244
382
              file=sys.stderr)
245
383
        sys.exit(1)
246
 
    
 
384
 
247
385
    # Compile dict of (clients: properties) to process
248
 
    clients={}
249
 
    
 
386
    clients = {}
 
387
 
250
388
    if options.all or not options.client:
251
 
        clients = dict((bus.get_object(busname, path), properties)
252
 
                       for path, properties in
253
 
                       mandos_clients.iteritems())
 
389
        clients = {bus.get_object(busname, path): properties
 
390
                   for path, properties in mandos_clients.items()}
254
391
    else:
255
392
        for name in options.client:
256
 
            for path, client in mandos_clients.iteritems():
 
393
            for path, client in mandos_clients.items():
257
394
                if client["Name"] == name:
258
395
                    client_objc = bus.get_object(busname, path)
259
396
                    clients[client_objc] = client
260
397
                    break
261
398
            else:
262
 
                print("Client not found on server: {0!r}"
 
399
                print("Client not found on server: {!r}"
263
400
                      .format(name), file=sys.stderr)
264
401
                sys.exit(1)
265
 
    
 
402
 
266
403
    if not has_actions(options) and clients:
267
 
        if options.verbose:
268
 
            keywords = ("Name", "Enabled", "Timeout",
269
 
                        "LastCheckedOK", "Created", "Interval",
270
 
                        "Host", "Fingerprint", "CheckerRunning",
271
 
                        "LastEnabled", "ApprovalPending",
272
 
                        "ApprovedByDefault",
 
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",
273
409
                        "LastApprovalRequest", "ApprovalDelay",
274
410
                        "ApprovalDuration", "Checker",
275
 
                        "ExtendedTimeout")
 
411
                        "ExtendedTimeout", "Expires",
 
412
                        "LastCheckerStatus")
276
413
        else:
277
414
            keywords = defaultkeywords
278
 
        
279
 
        print_clients(clients.values(), keywords)
 
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)
280
429
    else:
281
430
        # Process each client in the list by all selected options
282
431
        for client in clients:
 
432
 
283
433
            def set_client_prop(prop, value):
284
434
                """Set a Client D-Bus property"""
285
435
                client.Set(client_interface, prop, value,
286
436
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
437
 
287
438
            def set_client_prop_ms(prop, value):
288
439
                """Set a Client D-Bus property, converted
289
440
                from a string to milliseconds."""
290
441
                set_client_prop(prop,
291
 
                                timedelta_to_milliseconds
292
 
                                (string_to_delta(value)))
 
442
                                string_to_delta(value).total_seconds()
 
443
                                * 1000)
 
444
 
293
445
            if options.remove:
294
446
                mandos_serv.RemoveClient(client.__dbus_object_path__)
295
447
            if options.enable:
303
455
            if options.stop_checker:
304
456
                set_client_prop("CheckerRunning", dbus.Boolean(False))
305
457
            if options.is_enabled:
306
 
                sys.exit(0 if client.Get(client_interface,
307
 
                                         "Enabled",
308
 
                                         dbus_interface=
309
 
                                         dbus.PROPERTIES_IFACE)
310
 
                         else 1)
 
458
                if client.Get(client_interface, "Enabled",
 
459
                              dbus_interface=dbus.PROPERTIES_IFACE):
 
460
                    sys.exit(0)
 
461
                else:
 
462
                    sys.exit(1)
311
463
            if options.checker is not None:
312
464
                set_client_prop("Checker", options.checker)
313
465
            if options.host is not None:
339
491
                client.Approve(dbus.Boolean(False),
340
492
                               dbus_interface=client_interface)
341
493
 
 
494
 
342
495
if __name__ == "__main__":
343
496
    main()