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mandos-ctl
3
3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
5
# 
6
 
# Copyright © 2008-2014 Teddy Hogeborn
7
 
# Copyright © 2008-2014 Björn Påhlsson
 
6
# Copyright © 2008-2011 Teddy Hogeborn
 
7
# Copyright © 2008-2011 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
21
 
# <http://www.gnu.org/licenses/>.
 
20
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
22
21
# 
23
22
# Contact the authors at <mandos@recompile.se>.
24
23
# 
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
 
 
43
 
import dbus
44
 
 
45
 
if sys.version_info[0] == 2:
46
 
    str = unicode
47
35
 
48
36
locale.setlocale(locale.LC_ALL, "")
49
37
 
72
60
server_path = "/"
73
61
server_interface = domain + ".Mandos"
74
62
client_interface = domain + ".Mandos.Client"
75
 
version = "1.6.7"
 
63
version = "1.4.1"
76
64
 
77
65
def timedelta_to_milliseconds(td):
78
66
    """Convert a datetime.timedelta object to milliseconds"""
82
70
 
83
71
def milliseconds_to_string(ms):
84
72
    td = datetime.timedelta(0, 0, 0, ms)
85
 
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
86
 
            .format(days = "{0}T".format(td.days) if td.days else "",
87
 
                    hours = td.seconds // 3600,
88
 
                    minutes = (td.seconds % 3600) // 60,
89
 
                    seconds = td.seconds % 60,
90
 
                    ))
91
 
 
92
 
 
93
 
def rfc3339_duration_to_delta(duration):
94
 
    """Parse an RFC 3339 "duration" and return a datetime.timedelta
95
 
    
96
 
    >>> rfc3339_duration_to_delta("P7D")
97
 
    datetime.timedelta(7)
98
 
    >>> rfc3339_duration_to_delta("PT60S")
99
 
    datetime.timedelta(0, 60)
100
 
    >>> rfc3339_duration_to_delta("PT60M")
101
 
    datetime.timedelta(0, 3600)
102
 
    >>> rfc3339_duration_to_delta("PT24H")
103
 
    datetime.timedelta(1)
104
 
    >>> rfc3339_duration_to_delta("P1W")
105
 
    datetime.timedelta(7)
106
 
    >>> rfc3339_duration_to_delta("PT5M30S")
107
 
    datetime.timedelta(0, 330)
108
 
    >>> rfc3339_duration_to_delta("P1DT3M20S")
109
 
    datetime.timedelta(1, 200)
110
 
    """
111
 
    
112
 
    # Parsing an RFC 3339 duration with regular expressions is not
113
 
    # possible - there would have to be multiple places for the same
114
 
    # values, like seconds.  The current code, while more esoteric, is
115
 
    # cleaner without depending on a parsing library.  If Python had a
116
 
    # built-in library for parsing we would use it, but we'd like to
117
 
    # avoid excessive use of external libraries.
118
 
    
119
 
    # New type for defining tokens, syntax, and semantics all-in-one
120
 
    Token = collections.namedtuple("Token",
121
 
                                   ("regexp", # To match token; if
122
 
                                              # "value" is not None,
123
 
                                              # must have a "group"
124
 
                                              # containing digits
125
 
                                    "value",  # datetime.timedelta or
126
 
                                              # None
127
 
                                    "followers")) # Tokens valid after
128
 
                                                  # this token
129
 
    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
130
 
    # the "duration" ABNF definition in RFC 3339, Appendix A.
131
 
    token_end = Token(re.compile(r"$"), None, frozenset())
132
 
    token_second = Token(re.compile(r"(\d+)S"),
133
 
                         datetime.timedelta(seconds=1),
134
 
                         frozenset((token_end,)))
135
 
    token_minute = Token(re.compile(r"(\d+)M"),
136
 
                         datetime.timedelta(minutes=1),
137
 
                         frozenset((token_second, token_end)))
138
 
    token_hour = Token(re.compile(r"(\d+)H"),
139
 
                       datetime.timedelta(hours=1),
140
 
                       frozenset((token_minute, token_end)))
141
 
    token_time = Token(re.compile(r"T"),
142
 
                       None,
143
 
                       frozenset((token_hour, token_minute,
144
 
                                  token_second)))
145
 
    token_day = Token(re.compile(r"(\d+)D"),
146
 
                      datetime.timedelta(days=1),
147
 
                      frozenset((token_time, token_end)))
148
 
    token_month = Token(re.compile(r"(\d+)M"),
149
 
                        datetime.timedelta(weeks=4),
150
 
                        frozenset((token_day, token_end)))
151
 
    token_year = Token(re.compile(r"(\d+)Y"),
152
 
                       datetime.timedelta(weeks=52),
153
 
                       frozenset((token_month, token_end)))
154
 
    token_week = Token(re.compile(r"(\d+)W"),
155
 
                       datetime.timedelta(weeks=1),
156
 
                       frozenset((token_end,)))
157
 
    token_duration = Token(re.compile(r"P"), None,
158
 
                           frozenset((token_year, token_month,
159
 
                                      token_day, token_time,
160
 
                                      token_week)))
161
 
    # Define starting values
162
 
    value = datetime.timedelta() # Value so far
163
 
    found_token = None
164
 
    followers = frozenset((token_duration,)) # Following valid tokens
165
 
    s = duration                # String left to parse
166
 
    # Loop until end token is found
167
 
    while found_token is not token_end:
168
 
        # Search for any currently valid tokens
169
 
        for token in followers:
170
 
            match = token.regexp.match(s)
171
 
            if match is not None:
172
 
                # Token found
173
 
                if token.value is not None:
174
 
                    # Value found, parse digits
175
 
                    factor = int(match.group(1), 10)
176
 
                    # Add to value so far
177
 
                    value += factor * token.value
178
 
                # Strip token from string
179
 
                s = token.regexp.sub("", s, 1)
180
 
                # Go to found token
181
 
                found_token = token
182
 
                # Set valid next tokens
183
 
                followers = found_token.followers
184
 
                break
185
 
        else:
186
 
            # No currently valid tokens were found
187
 
            raise ValueError("Invalid RFC 3339 duration")
188
 
    # End token found
189
 
    return value
190
 
 
 
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
                })
191
79
 
192
80
def string_to_delta(interval):
193
81
    """Parse a string and return a datetime.timedelta
205
93
    >>> string_to_delta("5m 30s")
206
94
    datetime.timedelta(0, 330)
207
95
    """
208
 
    
209
 
    try:
210
 
        return rfc3339_duration_to_delta(interval)
211
 
    except ValueError:
212
 
        pass
213
 
    
214
 
    value = datetime.timedelta(0)
215
 
    regexp = re.compile(r"(\d+)([dsmhw]?)")
216
 
    
217
 
    for num, suffix in regexp.findall(interval):
218
 
        if suffix == "d":
219
 
            value += datetime.timedelta(int(num))
220
 
        elif suffix == "s":
221
 
            value += datetime.timedelta(0, int(num))
222
 
        elif suffix == "m":
223
 
            value += datetime.timedelta(0, 0, 0, 0, int(num))
224
 
        elif suffix == "h":
225
 
            value += datetime.timedelta(0, 0, 0, 0, 0, int(num))
226
 
        elif suffix == "w":
227
 
            value += datetime.timedelta(0, 0, 0, 0, 0, 0, int(num))
228
 
        elif suffix == "":
229
 
            value += datetime.timedelta(0, 0, 0, int(num))
230
 
    return value
 
96
    timevalue = datetime.timedelta(0)
 
97
    regexp = re.compile("\d+[dsmhw]")
 
98
    
 
99
    for s in regexp.findall(interval):
 
100
        try:
 
101
            suffix = unicode(s[-1])
 
102
            value = int(s[:-1])
 
103
            if suffix == "d":
 
104
                delta = datetime.timedelta(value)
 
105
            elif suffix == "s":
 
106
                delta = datetime.timedelta(0, value)
 
107
            elif suffix == "m":
 
108
                delta = datetime.timedelta(0, 0, 0, 0, value)
 
109
            elif suffix == "h":
 
110
                delta = datetime.timedelta(0, 0, 0, 0, 0, value)
 
111
            elif suffix == "w":
 
112
                delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
 
113
            else:
 
114
                raise ValueError
 
115
        except (ValueError, IndexError):
 
116
            raise ValueError
 
117
        timevalue += delta
 
118
    return timevalue
231
119
 
232
120
def print_clients(clients, keywords):
233
121
    def valuetostring(value, keyword):
234
122
        if type(value) is dbus.Boolean:
235
123
            return "Yes" if value else "No"
236
124
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
237
 
                       "ApprovalDuration", "ExtendedTimeout"):
 
125
                       "ApprovalDuration"):
238
126
            return milliseconds_to_string(value)
239
 
        return str(value)
 
127
        return unicode(value)
240
128
    
241
129
    # Create format string to print table rows
242
 
    format_string = " ".join("{{{key}:{width}}}".format(
243
 
            width = max(len(tablewords[key]),
244
 
                        max(len(valuetostring(client[key],
245
 
                                              key))
246
 
                            for client in
247
 
                            clients)),
248
 
            key = key) for key in keywords)
 
130
    format_string = " ".join("%%-%ds" %
 
131
                             max(len(tablewords[key]),
 
132
                                 max(len(valuetostring(client[key],
 
133
                                                       key))
 
134
                                     for client in
 
135
                                     clients))
 
136
                             for key in keywords)
249
137
    # Print header line
250
 
    print(format_string.format(**tablewords))
 
138
    print(format_string % tuple(tablewords[key] for key in keywords))
251
139
    for client in clients:
252
 
        print(format_string.format(**dict((key,
253
 
                                           valuetostring(client[key],
254
 
                                                         key))
255
 
                                          for key in keywords)))
 
140
        print(format_string % tuple(valuetostring(client[key], key)
 
141
                                    for key in keywords))
256
142
 
257
143
def has_actions(options):
258
144
    return any((options.enable,
277
163
def main():
278
164
    parser = argparse.ArgumentParser()
279
165
    parser.add_argument("--version", action="version",
280
 
                        version = "%(prog)s {0}".format(version),
 
166
                        version = "%%prog %s" % version,
281
167
                        help="show version number and exit")
282
168
    parser.add_argument("-a", "--all", action="store_true",
283
169
                        help="Select all clients")
316
202
    parser.add_argument("--approval-duration",
317
203
                        help="Set duration of one client approval")
318
204
    parser.add_argument("-H", "--host", help="Set host for client")
319
 
    parser.add_argument("-s", "--secret",
320
 
                        type=argparse.FileType(mode="rb"),
 
205
    parser.add_argument("-s", "--secret", type=file,
321
206
                        help="Set password blob (file) for client")
322
207
    parser.add_argument("-A", "--approve", action="store_true",
323
208
                        help="Approve any current client request")
324
209
    parser.add_argument("-D", "--deny", action="store_true",
325
210
                        help="Deny any current client request")
326
 
    parser.add_argument("--check", action="store_true",
327
 
                        help="Run self-test")
328
211
    parser.add_argument("client", nargs="*", help="Client name")
329
212
    options = parser.parse_args()
330
213
    
331
 
    if has_actions(options) and not (options.client or options.all):
 
214
    if has_actions(options) and not options.client and not options.all:
332
215
        parser.error("Options require clients names or --all.")
333
216
    if options.verbose and has_actions(options):
334
217
        parser.error("--verbose can only be used alone or with"
335
218
                     " --all.")
336
219
    if options.all and not has_actions(options):
337
220
        parser.error("--all requires an action.")
338
 
 
339
 
    if options.check:
340
 
        fail_count, test_count = doctest.testmod()
341
 
        sys.exit(os.EX_OK if fail_count == 0 else 1)
342
221
    
343
222
    try:
344
223
        bus = dbus.SystemBus()
363
242
            #restore stderr
364
243
            os.dup2(stderrcopy, sys.stderr.fileno())
365
244
            os.close(stderrcopy)
366
 
    except dbus.exceptions.DBusException:
 
245
    except dbus.exceptions.DBusException, e:
367
246
        print("Access denied: Accessing mandos server through dbus.",
368
247
              file=sys.stderr)
369
248
        sys.exit(1)
374
253
    if options.all or not options.client:
375
254
        clients = dict((bus.get_object(busname, path), properties)
376
255
                       for path, properties in
377
 
                       mandos_clients.items())
 
256
                       mandos_clients.iteritems())
378
257
    else:
379
258
        for name in options.client:
380
259
            for path, client in mandos_clients.iteritems():
383
262
                    clients[client_objc] = client
384
263
                    break
385
264
            else:
386
 
                print("Client not found on server: {0!r}"
387
 
                      .format(name), file=sys.stderr)
 
265
                print("Client not found on server: %r" % name,
 
266
                      file=sys.stderr)
388
267
                sys.exit(1)
389
268
    
390
269
    if not has_actions(options) and clients:
404
283
    else:
405
284
        # Process each client in the list by all selected options
406
285
        for client in clients:
407
 
            def set_client_prop(prop, value):
408
 
                """Set a Client D-Bus property"""
409
 
                client.Set(client_interface, prop, value,
410
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
411
 
            def set_client_prop_ms(prop, value):
412
 
                """Set a Client D-Bus property, converted
413
 
                from a string to milliseconds."""
414
 
                set_client_prop(prop,
415
 
                                timedelta_to_milliseconds
416
 
                                (string_to_delta(value)))
417
286
            if options.remove:
418
287
                mandos_serv.RemoveClient(client.__dbus_object_path__)
419
288
            if options.enable:
420
 
                set_client_prop("Enabled", dbus.Boolean(True))
 
289
                client.Enable(dbus_interface=client_interface)
421
290
            if options.disable:
422
 
                set_client_prop("Enabled", dbus.Boolean(False))
 
291
                client.Disable(dbus_interface=client_interface)
423
292
            if options.bump_timeout:
424
 
                set_client_prop("LastCheckedOK", "")
 
293
                client.CheckedOK(dbus_interface=client_interface)
425
294
            if options.start_checker:
426
 
                set_client_prop("CheckerRunning", dbus.Boolean(True))
 
295
                client.StartChecker(dbus_interface=client_interface)
427
296
            if options.stop_checker:
428
 
                set_client_prop("CheckerRunning", dbus.Boolean(False))
 
297
                client.StopChecker(dbus_interface=client_interface)
429
298
            if options.is_enabled:
430
299
                sys.exit(0 if client.Get(client_interface,
431
300
                                         "Enabled",
433
302
                                         dbus.PROPERTIES_IFACE)
434
303
                         else 1)
435
304
            if options.checker is not None:
436
 
                set_client_prop("Checker", options.checker)
 
305
                client.Set(client_interface, "Checker",
 
306
                           options.checker,
 
307
                           dbus_interface=dbus.PROPERTIES_IFACE)
437
308
            if options.host is not None:
438
 
                set_client_prop("Host", options.host)
 
309
                client.Set(client_interface, "Host", options.host,
 
310
                           dbus_interface=dbus.PROPERTIES_IFACE)
439
311
            if options.interval is not None:
440
 
                set_client_prop_ms("Interval", options.interval)
 
312
                client.Set(client_interface, "Interval",
 
313
                           timedelta_to_milliseconds
 
314
                           (string_to_delta(options.interval)),
 
315
                           dbus_interface=dbus.PROPERTIES_IFACE)
441
316
            if options.approval_delay is not None:
442
 
                set_client_prop_ms("ApprovalDelay",
443
 
                                   options.approval_delay)
 
317
                client.Set(client_interface, "ApprovalDelay",
 
318
                           timedelta_to_milliseconds
 
319
                           (string_to_delta(options.
 
320
                                            approval_delay)),
 
321
                           dbus_interface=dbus.PROPERTIES_IFACE)
444
322
            if options.approval_duration is not None:
445
 
                set_client_prop_ms("ApprovalDuration",
446
 
                                   options.approval_duration)
 
323
                client.Set(client_interface, "ApprovalDuration",
 
324
                           timedelta_to_milliseconds
 
325
                           (string_to_delta(options.
 
326
                                            approval_duration)),
 
327
                           dbus_interface=dbus.PROPERTIES_IFACE)
447
328
            if options.timeout is not None:
448
 
                set_client_prop_ms("Timeout", options.timeout)
 
329
                client.Set(client_interface, "Timeout",
 
330
                           timedelta_to_milliseconds
 
331
                           (string_to_delta(options.timeout)),
 
332
                           dbus_interface=dbus.PROPERTIES_IFACE)
449
333
            if options.extended_timeout is not None:
450
 
                set_client_prop_ms("ExtendedTimeout",
451
 
                                   options.extended_timeout)
 
334
                client.Set(client_interface, "ExtendedTimeout",
 
335
                           timedelta_to_milliseconds
 
336
                           (string_to_delta(options.extended_timeout)),
 
337
                           dbus_interface=dbus.PROPERTIES_IFACE)
452
338
            if options.secret is not None:
453
 
                set_client_prop("Secret",
454
 
                                dbus.ByteArray(options.secret.read()))
 
339
                client.Set(client_interface, "Secret",
 
340
                           dbus.ByteArray(open(options.secret,
 
341
                                               "rb").read()),
 
342
                           dbus_interface=dbus.PROPERTIES_IFACE)
455
343
            if options.approved_by_default is not None:
456
 
                set_client_prop("ApprovedByDefault",
457
 
                                dbus.Boolean(options
458
 
                                             .approved_by_default))
 
344
                client.Set(client_interface, "ApprovedByDefault",
 
345
                           dbus.Boolean(options
 
346
                                        .approved_by_default),
 
347
                           dbus_interface=dbus.PROPERTIES_IFACE)
459
348
            if options.approve:
460
349
                client.Approve(dbus.Boolean(True),
461
350
                               dbus_interface=client_interface)