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  • Committer: Teddy Hogeborn
  • Date: 2014-07-25 22:44:20 UTC
  • mto: This revision was merged to the branch mainline in revision 724.
  • Revision ID: teddy@recompile.se-20140725224420-4a5ct2ptt0hsc92z
Require Python 2.7.

This is in preparation for the eventual move to Python 3, which will
happen as soon as all Python modules required by Mandos are available.
The mandos-ctl and mandos-monitor programs are already portable
between Python 2.6 and Python 3 without changes; this change will
bring the requirement up to Python 2.7.

* INSTALL (Prerequisites/Libraries/Mandos Server): Document
                                                   requirement of
                                                   Python 2.7; remove
                                                   Python-argparse
                                                   which is in the
                                                   Python 2.7 standard
                                                   library.
* debian/control (Source: mandos/Build-Depends-Indep): Depend on
                                                       exactly the
                                                       python2.7
                                                       package and all
                                                       the Python 2.7
                                                       versions of the
                                                       python modules.
  (Package: mandos/Depends): - '' - but still depend on python (<=2.7)
                            and the generic versions of the Python
                            modules; this is for mandos-ctl and
                            mandos-monitor, both of which are
                            compatible with Python 3, and use
                            #!/usr/bin/python.
* mandos: Use #!/usr/bin/python2.7 instead of #!/usr/bin/python.

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mandos-ctl
3
3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
5
# 
6
 
# Copyright © 2008-2011 Teddy Hogeborn
7
 
# Copyright © 2008-2011 Björn Påhlsson
 
6
# Copyright © 2008-2014 Teddy Hogeborn
 
7
# Copyright © 2008-2014 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
 
 
43
import dbus
 
44
 
 
45
if sys.version_info[0] == 2:
 
46
    str = unicode
35
47
 
36
48
locale.setlocale(locale.LC_ALL, "")
37
49
 
60
72
server_path = "/"
61
73
server_interface = domain + ".Mandos"
62
74
client_interface = domain + ".Mandos.Client"
63
 
version = "1.4.1"
 
75
version = "1.6.7"
64
76
 
65
77
def timedelta_to_milliseconds(td):
66
78
    """Convert a datetime.timedelta object to milliseconds"""
70
82
 
71
83
def milliseconds_to_string(ms):
72
84
    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
 
                })
 
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
 
79
191
 
80
192
def string_to_delta(interval):
81
193
    """Parse a string and return a datetime.timedelta
93
205
    >>> string_to_delta("5m 30s")
94
206
    datetime.timedelta(0, 330)
95
207
    """
 
208
    
 
209
    try:
 
210
        return rfc3339_duration_to_delta(interval)
 
211
    except ValueError:
 
212
        pass
 
213
    
96
214
    value = datetime.timedelta(0)
97
 
    regexp = re.compile("(\d+)([dsmhw]?)")
 
215
    regexp = re.compile(r"(\d+)([dsmhw]?)")
98
216
    
99
217
    for num, suffix in regexp.findall(interval):
100
218
        if suffix == "d":
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))
130
 
                             for key in keywords)
 
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)
131
249
    # Print header line
132
 
    print(format_string % tuple(tablewords[key] for key in keywords))
 
250
    print(format_string.format(**tablewords))
133
251
    for client in clients:
134
 
        print(format_string % tuple(valuetostring(client[key], key)
135
 
                                    for key in keywords))
 
252
        print(format_string.format(**dict((key,
 
253
                                           valuetostring(client[key],
 
254
                                                         key))
 
255
                                          for key in keywords)))
136
256
 
137
257
def has_actions(options):
138
258
    return any((options.enable,
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 {0}".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")
196
316
    parser.add_argument("--approval-duration",
197
317
                        help="Set duration of one client approval")
198
318
    parser.add_argument("-H", "--host", help="Set host for client")
199
 
    parser.add_argument("-s", "--secret", type=file,
 
319
    parser.add_argument("-s", "--secret",
 
320
                        type=argparse.FileType(mode="rb"),
200
321
                        help="Set password blob (file) for client")
201
322
    parser.add_argument("-A", "--approve", action="store_true",
202
323
                        help="Approve any current client request")
203
324
    parser.add_argument("-D", "--deny", action="store_true",
204
325
                        help="Deny any current client request")
 
326
    parser.add_argument("--check", action="store_true",
 
327
                        help="Run self-test")
205
328
    parser.add_argument("client", nargs="*", help="Client name")
206
329
    options = parser.parse_args()
207
330
    
208
 
    if has_actions(options) and not options.client and not options.all:
 
331
    if has_actions(options) and not (options.client or options.all):
209
332
        parser.error("Options require clients names or --all.")
210
333
    if options.verbose and has_actions(options):
211
334
        parser.error("--verbose can only be used alone or with"
212
335
                     " --all.")
213
336
    if options.all and not has_actions(options):
214
337
        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)
215
342
    
216
343
    try:
217
344
        bus = dbus.SystemBus()
236
363
            #restore stderr
237
364
            os.dup2(stderrcopy, sys.stderr.fileno())
238
365
            os.close(stderrcopy)
239
 
    except dbus.exceptions.DBusException, e:
 
366
    except dbus.exceptions.DBusException:
240
367
        print("Access denied: Accessing mandos server through dbus.",
241
368
              file=sys.stderr)
242
369
        sys.exit(1)
247
374
    if options.all or not options.client:
248
375
        clients = dict((bus.get_object(busname, path), properties)
249
376
                       for path, properties in
250
 
                       mandos_clients.iteritems())
 
377
                       mandos_clients.items())
251
378
    else:
252
379
        for name in options.client:
253
380
            for path, client in mandos_clients.iteritems():
256
383
                    clients[client_objc] = client
257
384
                    break
258
385
            else:
259
 
                print("Client not found on server: %r" % name,
260
 
                      file=sys.stderr)
 
386
                print("Client not found on server: {0!r}"
 
387
                      .format(name), file=sys.stderr)
261
388
                sys.exit(1)
262
389
    
263
390
    if not has_actions(options) and clients:
277
404
    else:
278
405
        # Process each client in the list by all selected options
279
406
        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)))
280
417
            if options.remove:
281
418
                mandos_serv.RemoveClient(client.__dbus_object_path__)
282
419
            if options.enable:
283
 
                client.Enable(dbus_interface=client_interface)
 
420
                set_client_prop("Enabled", dbus.Boolean(True))
284
421
            if options.disable:
285
 
                client.Disable(dbus_interface=client_interface)
 
422
                set_client_prop("Enabled", dbus.Boolean(False))
286
423
            if options.bump_timeout:
287
 
                client.CheckedOK(dbus_interface=client_interface)
 
424
                set_client_prop("LastCheckedOK", "")
288
425
            if options.start_checker:
289
 
                client.StartChecker(dbus_interface=client_interface)
 
426
                set_client_prop("CheckerRunning", dbus.Boolean(True))
290
427
            if options.stop_checker:
291
 
                client.StopChecker(dbus_interface=client_interface)
 
428
                set_client_prop("CheckerRunning", dbus.Boolean(False))
292
429
            if options.is_enabled:
293
430
                sys.exit(0 if client.Get(client_interface,
294
431
                                         "Enabled",
296
433
                                         dbus.PROPERTIES_IFACE)
297
434
                         else 1)
298
435
            if options.checker is not None:
299
 
                client.Set(client_interface, "Checker",
300
 
                           options.checker,
301
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
436
                set_client_prop("Checker", options.checker)
302
437
            if options.host is not None:
303
 
                client.Set(client_interface, "Host", options.host,
304
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
438
                set_client_prop("Host", options.host)
305
439
            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)
 
440
                set_client_prop_ms("Interval", options.interval)
310
441
            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)
 
442
                set_client_prop_ms("ApprovalDelay",
 
443
                                   options.approval_delay)
316
444
            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)
 
445
                set_client_prop_ms("ApprovalDuration",
 
446
                                   options.approval_duration)
322
447
            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)
 
448
                set_client_prop_ms("Timeout", options.timeout)
327
449
            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)
 
450
                set_client_prop_ms("ExtendedTimeout",
 
451
                                   options.extended_timeout)
332
452
            if options.secret is not None:
333
 
                client.Set(client_interface, "Secret",
334
 
                           dbus.ByteArray(open(options.secret,
335
 
                                               "rb").read()),
336
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
453
                set_client_prop("Secret",
 
454
                                dbus.ByteArray(options.secret.read()))
337
455
            if options.approved_by_default is not None:
338
 
                client.Set(client_interface, "ApprovedByDefault",
339
 
                           dbus.Boolean(options
340
 
                                        .approved_by_default),
341
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
456
                set_client_prop("ApprovedByDefault",
 
457
                                dbus.Boolean(options
 
458
                                             .approved_by_default))
342
459
            if options.approve:
343
460
                client.Approve(dbus.Boolean(True),
344
461
                               dbus_interface=client_interface)