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working new feature: network-hooks - Enables user-scripts to take up
                     interfaces during bootup

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mandos-ctl
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# 
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# Mandos Monitor - Control and monitor the Mandos server
5
5
# 
6
 
# Copyright © 2008-2012 Teddy Hogeborn
7
 
# Copyright © 2008-2012 Björn Påhlsson
 
6
# Copyright © 2008-2011 Teddy Hogeborn
 
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# 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
 
from future_builtins import *
30
 
 
31
28
import sys
 
29
import dbus
32
30
import argparse
33
31
import locale
34
32
import datetime
35
33
import re
36
34
import os
37
 
import collections
38
 
import doctest
39
 
 
40
 
import dbus
41
35
 
42
36
locale.setlocale(locale.LC_ALL, "")
43
37
 
66
60
server_path = "/"
67
61
server_interface = domain + ".Mandos"
68
62
client_interface = domain + ".Mandos.Client"
69
 
version = "1.6.0"
 
63
version = "1.4.1"
70
64
 
71
65
def timedelta_to_milliseconds(td):
72
66
    """Convert a datetime.timedelta object to milliseconds"""
76
70
 
77
71
def milliseconds_to_string(ms):
78
72
    td = datetime.timedelta(0, 0, 0, ms)
79
 
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
80
 
            .format(days = "{0}T".format(td.days) if td.days else "",
81
 
                    hours = td.seconds // 3600,
82
 
                    minutes = (td.seconds % 3600) // 60,
83
 
                    seconds = td.seconds % 60,
84
 
                    ))
85
 
 
86
 
 
87
 
def rfc3339_duration_to_delta(duration):
88
 
    """Parse an RFC 3339 "duration" and return a datetime.timedelta
89
 
    
90
 
    >>> rfc3339_duration_to_delta("P7D")
91
 
    datetime.timedelta(7)
92
 
    >>> rfc3339_duration_to_delta("PT60S")
93
 
    datetime.timedelta(0, 60)
94
 
    >>> rfc3339_duration_to_delta("PT60M")
95
 
    datetime.timedelta(0, 3600)
96
 
    >>> rfc3339_duration_to_delta("PT24H")
97
 
    datetime.timedelta(1)
98
 
    >>> rfc3339_duration_to_delta("P1W")
99
 
    datetime.timedelta(7)
100
 
    >>> rfc3339_duration_to_delta("PT5M30S")
101
 
    datetime.timedelta(0, 330)
102
 
    >>> rfc3339_duration_to_delta("P1DT3M20S")
103
 
    datetime.timedelta(1, 200)
104
 
    """
105
 
    
106
 
    # Parsing an RFC 3339 duration with regular expressions is not
107
 
    # possible - there would have to be multiple places for the same
108
 
    # values, like seconds.  The current code, while more esoteric, is
109
 
    # cleaner without depending on a parsing library.  If Python had a
110
 
    # built-in library for parsing we would use it, but we'd like to
111
 
    # avoid excessive use of external libraries.
112
 
    
113
 
    # New type for defining tokens, syntax, and semantics all-in-one
114
 
    Token = collections.namedtuple("Token",
115
 
                                   ("regexp", # To match token; if
116
 
                                              # "value" is not None,
117
 
                                              # must have a "group"
118
 
                                              # containing digits
119
 
                                    "value",  # datetime.timedelta or
120
 
                                              # None
121
 
                                    "followers")) # Tokens valid after
122
 
                                                  # this token
123
 
    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
124
 
    # the "duration" ABNF definition in RFC 3339, Appendix A.
125
 
    token_end = Token(re.compile(r"$"), None, frozenset())
126
 
    token_second = Token(re.compile(r"(\d+)S"),
127
 
                         datetime.timedelta(seconds=1),
128
 
                         frozenset((token_end,)))
129
 
    token_minute = Token(re.compile(r"(\d+)M"),
130
 
                         datetime.timedelta(minutes=1),
131
 
                         frozenset((token_second, token_end)))
132
 
    token_hour = Token(re.compile(r"(\d+)H"),
133
 
                       datetime.timedelta(hours=1),
134
 
                       frozenset((token_minute, token_end)))
135
 
    token_time = Token(re.compile(r"T"),
136
 
                       None,
137
 
                       frozenset((token_hour, token_minute,
138
 
                                  token_second)))
139
 
    token_day = Token(re.compile(r"(\d+)D"),
140
 
                      datetime.timedelta(days=1),
141
 
                      frozenset((token_time, token_end)))
142
 
    token_month = Token(re.compile(r"(\d+)M"),
143
 
                        datetime.timedelta(weeks=4),
144
 
                        frozenset((token_day, token_end)))
145
 
    token_year = Token(re.compile(r"(\d+)Y"),
146
 
                       datetime.timedelta(weeks=52),
147
 
                       frozenset((token_month, token_end)))
148
 
    token_week = Token(re.compile(r"(\d+)W"),
149
 
                       datetime.timedelta(weeks=1),
150
 
                       frozenset((token_end,)))
151
 
    token_duration = Token(re.compile(r"P"), None,
152
 
                           frozenset((token_year, token_month,
153
 
                                      token_day, token_time,
154
 
                                      token_week))),
155
 
    # Define starting values
156
 
    value = datetime.timedelta() # Value so far
157
 
    found_token = None
158
 
    followers = frozenset(token_duration,) # Following valid tokens
159
 
    s = duration                # String left to parse
160
 
    # Loop until end token is found
161
 
    while found_token is not token_end:
162
 
        # Search for any currently valid tokens
163
 
        for token in followers:
164
 
            match = token.regexp.match(s)
165
 
            if match is not None:
166
 
                # Token found
167
 
                if token.value is not None:
168
 
                    # Value found, parse digits
169
 
                    factor = int(match.group(1), 10)
170
 
                    # Add to value so far
171
 
                    value += factor * token.value
172
 
                # Strip token from string
173
 
                s = token.regexp.sub("", s, 1)
174
 
                # Go to found token
175
 
                found_token = token
176
 
                # Set valid next tokens
177
 
                followers = found_token.followers
178
 
                break
179
 
        else:
180
 
            # No currently valid tokens were found
181
 
            raise ValueError("Invalid RFC 3339 duration")
182
 
    # End token found
183
 
    return value
184
 
 
 
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
                })
185
79
 
186
80
def string_to_delta(interval):
187
81
    """Parse a string and return a datetime.timedelta
200
94
    datetime.timedelta(0, 330)
201
95
    """
202
96
    value = datetime.timedelta(0)
203
 
    regexp = re.compile(r"(\d+)([dsmhw]?)")
204
 
    
205
 
    try:
206
 
        return rfc3339_duration_to_delta(interval)
207
 
    except ValueError:
208
 
        pass
 
97
    regexp = re.compile("(\d+)([dsmhw]?)")
209
98
    
210
99
    for num, suffix in regexp.findall(interval):
211
100
        if suffix == "d":
227
116
        if type(value) is dbus.Boolean:
228
117
            return "Yes" if value else "No"
229
118
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
230
 
                       "ApprovalDuration", "ExtendedTimeout"):
 
119
                       "ApprovalDuration"):
231
120
            return milliseconds_to_string(value)
232
121
        return unicode(value)
233
122
    
234
123
    # Create format string to print table rows
235
 
    format_string = " ".join("{{{key}:{width}}}".format(
236
 
            width = max(len(tablewords[key]),
237
 
                        max(len(valuetostring(client[key],
238
 
                                              key))
239
 
                            for client in
240
 
                            clients)),
241
 
            key = key) for key in keywords)
 
124
    format_string = " ".join("%%-%ds" %
 
125
                             max(len(tablewords[key]),
 
126
                                 max(len(valuetostring(client[key],
 
127
                                                       key))
 
128
                                     for client in
 
129
                                     clients))
 
130
                             for key in keywords)
242
131
    # Print header line
243
 
    print(format_string.format(**tablewords))
 
132
    print(format_string % tuple(tablewords[key] for key in keywords))
244
133
    for client in clients:
245
 
        print(format_string.format(**dict((key,
246
 
                                           valuetostring(client[key],
247
 
                                                         key))
248
 
                                          for key in keywords)))
 
134
        print(format_string % tuple(valuetostring(client[key], key)
 
135
                                    for key in keywords))
249
136
 
250
137
def has_actions(options):
251
138
    return any((options.enable,
270
157
def main():
271
158
    parser = argparse.ArgumentParser()
272
159
    parser.add_argument("--version", action="version",
273
 
                        version = "%(prog)s {0}".format(version),
 
160
                        version = "%%prog %s" % version,
274
161
                        help="show version number and exit")
275
162
    parser.add_argument("-a", "--all", action="store_true",
276
163
                        help="Select all clients")
315
202
                        help="Approve any current client request")
316
203
    parser.add_argument("-D", "--deny", action="store_true",
317
204
                        help="Deny any current client request")
318
 
    parser.add_argument("--check", action="store_true",
319
 
                        help="Run self-test")
320
205
    parser.add_argument("client", nargs="*", help="Client name")
321
206
    options = parser.parse_args()
322
207
    
323
 
    if has_actions(options) and not (options.client or options.all):
 
208
    if has_actions(options) and not options.client and not options.all:
324
209
        parser.error("Options require clients names or --all.")
325
210
    if options.verbose and has_actions(options):
326
211
        parser.error("--verbose can only be used alone or with"
327
212
                     " --all.")
328
213
    if options.all and not has_actions(options):
329
214
        parser.error("--all requires an action.")
330
 
 
331
 
    if options.check:
332
 
        fail_count, test_count = doctest.testmod()
333
 
        sys.exit(0 if fail_count == 0 else 1)
334
215
    
335
216
    try:
336
217
        bus = dbus.SystemBus()
355
236
            #restore stderr
356
237
            os.dup2(stderrcopy, sys.stderr.fileno())
357
238
            os.close(stderrcopy)
358
 
    except dbus.exceptions.DBusException:
 
239
    except dbus.exceptions.DBusException, e:
359
240
        print("Access denied: Accessing mandos server through dbus.",
360
241
              file=sys.stderr)
361
242
        sys.exit(1)
375
256
                    clients[client_objc] = client
376
257
                    break
377
258
            else:
378
 
                print("Client not found on server: {0!r}"
379
 
                      .format(name), file=sys.stderr)
 
259
                print("Client not found on server: %r" % name,
 
260
                      file=sys.stderr)
380
261
                sys.exit(1)
381
262
    
382
263
    if not has_actions(options) and clients:
396
277
    else:
397
278
        # Process each client in the list by all selected options
398
279
        for client in clients:
399
 
            def set_client_prop(prop, value):
400
 
                """Set a Client D-Bus property"""
401
 
                client.Set(client_interface, prop, value,
402
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
403
 
            def set_client_prop_ms(prop, value):
404
 
                """Set a Client D-Bus property, converted
405
 
                from a string to milliseconds."""
406
 
                set_client_prop(prop,
407
 
                                timedelta_to_milliseconds
408
 
                                (string_to_delta(value)))
409
280
            if options.remove:
410
281
                mandos_serv.RemoveClient(client.__dbus_object_path__)
411
282
            if options.enable:
412
 
                set_client_prop("Enabled", dbus.Boolean(True))
 
283
                client.Enable(dbus_interface=client_interface)
413
284
            if options.disable:
414
 
                set_client_prop("Enabled", dbus.Boolean(False))
 
285
                client.Disable(dbus_interface=client_interface)
415
286
            if options.bump_timeout:
416
 
                set_client_prop("LastCheckedOK", "")
 
287
                client.CheckedOK(dbus_interface=client_interface)
417
288
            if options.start_checker:
418
 
                set_client_prop("CheckerRunning", dbus.Boolean(True))
 
289
                client.StartChecker(dbus_interface=client_interface)
419
290
            if options.stop_checker:
420
 
                set_client_prop("CheckerRunning", dbus.Boolean(False))
 
291
                client.StopChecker(dbus_interface=client_interface)
421
292
            if options.is_enabled:
422
293
                sys.exit(0 if client.Get(client_interface,
423
294
                                         "Enabled",
425
296
                                         dbus.PROPERTIES_IFACE)
426
297
                         else 1)
427
298
            if options.checker is not None:
428
 
                set_client_prop("Checker", options.checker)
 
299
                client.Set(client_interface, "Checker",
 
300
                           options.checker,
 
301
                           dbus_interface=dbus.PROPERTIES_IFACE)
429
302
            if options.host is not None:
430
 
                set_client_prop("Host", options.host)
 
303
                client.Set(client_interface, "Host", options.host,
 
304
                           dbus_interface=dbus.PROPERTIES_IFACE)
431
305
            if options.interval is not None:
432
 
                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)
433
310
            if options.approval_delay is not None:
434
 
                set_client_prop_ms("ApprovalDelay",
435
 
                                   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)
436
316
            if options.approval_duration is not None:
437
 
                set_client_prop_ms("ApprovalDuration",
438
 
                                   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)
439
322
            if options.timeout is not None:
440
 
                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)
441
327
            if options.extended_timeout is not None:
442
 
                set_client_prop_ms("ExtendedTimeout",
443
 
                                   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)
444
332
            if options.secret is not None:
445
 
                set_client_prop("Secret",
446
 
                                dbus.ByteArray(options.secret.read()))
 
333
                client.Set(client_interface, "Secret",
 
334
                           dbus.ByteArray(open(options.secret,
 
335
                                               "rb").read()),
 
336
                           dbus_interface=dbus.PROPERTIES_IFACE)
447
337
            if options.approved_by_default is not None:
448
 
                set_client_prop("ApprovedByDefault",
449
 
                                dbus.Boolean(options
450
 
                                             .approved_by_default))
 
338
                client.Set(client_interface, "ApprovedByDefault",
 
339
                           dbus.Boolean(options
 
340
                                        .approved_by_default),
 
341
                           dbus_interface=dbus.PROPERTIES_IFACE)
451
342
            if options.approve:
452
343
                client.Approve(dbus.Boolean(True),
453
344
                               dbus_interface=client_interface)