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  • Committer: Teddy Hogeborn
  • Date: 2016-06-03 17:27:03 UTC
  • Revision ID: teddy@recompile.se-20160603172703-mc6tjor6rhq4xy74
mandos: Bug fix: Do multiprocessing cleanup correctly on exit

* mandos (main): Save module "multiprocessing" and open file "wnull"
                 as scope variables accessible by function cleanup(),
                 since the module and global variable may not be
                 accessible when the cleanup() function is run as
                 scheduled by atexit().

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mandos-ctl
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3
# 
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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
 
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# Copyright © 2008-2016 Teddy Hogeborn
 
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# 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
26
26
from __future__ import (division, absolute_import, print_function,
27
27
                        unicode_literals)
28
28
 
29
 
from future_builtins import *
 
29
try:
 
30
    from future_builtins import *
 
31
except ImportError:
 
32
    pass
30
33
 
31
34
import sys
32
35
import argparse
39
42
 
40
43
import dbus
41
44
 
 
45
if sys.version_info.major == 2:
 
46
    str = unicode
 
47
 
42
48
locale.setlocale(locale.LC_ALL, "")
43
49
 
44
50
tablewords = {
58
64
    "ApprovalDelay": "Approval Delay",
59
65
    "ApprovalDuration": "Approval Duration",
60
66
    "Checker": "Checker",
61
 
    "ExtendedTimeout" : "Extended Timeout"
62
 
    }
 
67
    "ExtendedTimeout": "Extended Timeout"
 
68
}
63
69
defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
64
70
domain = "se.recompile"
65
71
busname = domain + ".Mandos"
66
72
server_path = "/"
67
73
server_interface = domain + ".Mandos"
68
74
client_interface = domain + ".Mandos.Client"
69
 
version = "1.6.2"
70
 
 
71
 
def timedelta_to_milliseconds(td):
72
 
    """Convert a datetime.timedelta object to milliseconds"""
73
 
    return ((td.days * 24 * 60 * 60 * 1000)
74
 
            + (td.seconds * 1000)
75
 
            + (td.microseconds // 1000))
 
75
version = "1.7.7"
 
76
 
 
77
 
 
78
try:
 
79
    dbus.OBJECT_MANAGER_IFACE
 
80
except AttributeError:
 
81
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
76
82
 
77
83
def milliseconds_to_string(ms):
78
84
    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
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}".format(
 
86
        days = "{}T".format(td.days) if td.days else "",
 
87
        hours = td.seconds // 3600,
 
88
        minutes = (td.seconds % 3600) // 60,
 
89
        seconds = td.seconds % 60))
85
90
 
86
91
 
87
92
def rfc3339_duration_to_delta(duration):
111
116
    # avoid excessive use of external libraries.
112
117
    
113
118
    # 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
 
119
    Token = collections.namedtuple("Token", (
 
120
        "regexp",  # To match token; if "value" is not None, must have
 
121
                   # a "group" containing digits
 
122
        "value",   # datetime.timedelta or None
 
123
        "followers"))           # Tokens valid after this token
123
124
    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
124
125
    # the "duration" ABNF definition in RFC 3339, Appendix A.
125
126
    token_end = Token(re.compile(r"$"), None, frozenset())
126
127
    token_second = Token(re.compile(r"(\d+)S"),
127
128
                         datetime.timedelta(seconds=1),
128
 
                         frozenset((token_end,)))
 
129
                         frozenset((token_end, )))
129
130
    token_minute = Token(re.compile(r"(\d+)M"),
130
131
                         datetime.timedelta(minutes=1),
131
132
                         frozenset((token_second, token_end)))
147
148
                       frozenset((token_month, token_end)))
148
149
    token_week = Token(re.compile(r"(\d+)W"),
149
150
                       datetime.timedelta(weeks=1),
150
 
                       frozenset((token_end,)))
 
151
                       frozenset((token_end, )))
151
152
    token_duration = Token(re.compile(r"P"), None,
152
153
                           frozenset((token_year, token_month,
153
154
                                      token_day, token_time,
154
 
                                      token_week))),
 
155
                                      token_week)))
155
156
    # Define starting values
156
157
    value = datetime.timedelta() # Value so far
157
158
    found_token = None
158
 
    followers = frozenset(token_duration,) # Following valid tokens
 
159
    followers = frozenset((token_duration, )) # Following valid tokens
159
160
    s = duration                # String left to parse
160
161
    # Loop until end token is found
161
162
    while found_token is not token_end:
178
179
                break
179
180
        else:
180
181
            # No currently valid tokens were found
181
 
            raise ValueError("Invalid RFC 3339 duration")
 
182
            raise ValueError("Invalid RFC 3339 duration: {!r}"
 
183
                             .format(duration))
182
184
    # End token found
183
185
    return value
184
186
 
186
188
def string_to_delta(interval):
187
189
    """Parse a string and return a datetime.timedelta
188
190
    
189
 
    >>> string_to_delta("7d")
 
191
    >>> string_to_delta('7d')
190
192
    datetime.timedelta(7)
191
 
    >>> string_to_delta("60s")
 
193
    >>> string_to_delta('60s')
192
194
    datetime.timedelta(0, 60)
193
 
    >>> string_to_delta("60m")
 
195
    >>> string_to_delta('60m')
194
196
    datetime.timedelta(0, 3600)
195
 
    >>> string_to_delta("24h")
 
197
    >>> string_to_delta('24h')
196
198
    datetime.timedelta(1)
197
 
    >>> string_to_delta("1w")
 
199
    >>> string_to_delta('1w')
198
200
    datetime.timedelta(7)
199
 
    >>> string_to_delta("5m 30s")
 
201
    >>> string_to_delta('5m 30s')
200
202
    datetime.timedelta(0, 330)
201
203
    """
202
204
    
223
225
            value += datetime.timedelta(0, 0, 0, int(num))
224
226
    return value
225
227
 
 
228
 
226
229
def print_clients(clients, keywords):
227
230
    def valuetostring(value, keyword):
228
231
        if type(value) is dbus.Boolean:
230
233
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
231
234
                       "ApprovalDuration", "ExtendedTimeout"):
232
235
            return milliseconds_to_string(value)
233
 
        return unicode(value)
 
236
        return str(value)
234
237
    
235
238
    # Create format string to print table rows
236
239
    format_string = " ".join("{{{key}:{width}}}".format(
237
 
            width = max(len(tablewords[key]),
238
 
                        max(len(valuetostring(client[key],
239
 
                                              key))
240
 
                            for client in
241
 
                            clients)),
242
 
            key = key) for key in keywords)
 
240
        width = max(len(tablewords[key]),
 
241
                    max(len(valuetostring(client[key], key))
 
242
                        for client in clients)),
 
243
        key = key)
 
244
                             for key in keywords)
243
245
    # Print header line
244
246
    print(format_string.format(**tablewords))
245
247
    for client in clients:
246
 
        print(format_string.format(**dict((key,
247
 
                                           valuetostring(client[key],
248
 
                                                         key))
249
 
                                          for key in keywords)))
 
248
        print(format_string.format(**{
 
249
            key: valuetostring(client[key], key)
 
250
            for key in keywords }))
 
251
 
250
252
 
251
253
def has_actions(options):
252
254
    return any((options.enable,
268
270
                options.approve,
269
271
                options.deny))
270
272
 
 
273
 
271
274
def main():
272
275
    parser = argparse.ArgumentParser()
273
276
    parser.add_argument("--version", action="version",
274
 
                        version = "%(prog)s {0}".format(version),
 
277
                        version = "%(prog)s {}".format(version),
275
278
                        help="show version number and exit")
276
279
    parser.add_argument("-a", "--all", action="store_true",
277
280
                        help="Select all clients")
310
313
    parser.add_argument("--approval-duration",
311
314
                        help="Set duration of one client approval")
312
315
    parser.add_argument("-H", "--host", help="Set host for client")
313
 
    parser.add_argument("-s", "--secret", type=file,
 
316
    parser.add_argument("-s", "--secret",
 
317
                        type=argparse.FileType(mode="rb"),
314
318
                        help="Set password blob (file) for client")
315
319
    parser.add_argument("-A", "--approve", action="store_true",
316
320
                        help="Approve any current client request")
331
335
 
332
336
    if options.check:
333
337
        fail_count, test_count = doctest.testmod()
334
 
        sys.exit(0 if fail_count == 0 else 1)
 
338
        sys.exit(os.EX_OK if fail_count == 0 else 1)
335
339
    
336
340
    try:
337
341
        bus = dbus.SystemBus()
338
342
        mandos_dbus_objc = bus.get_object(busname, server_path)
339
343
    except dbus.exceptions.DBusException:
340
 
        print("Could not connect to Mandos server",
341
 
              file=sys.stderr)
 
344
        print("Could not connect to Mandos server", file=sys.stderr)
342
345
        sys.exit(1)
343
346
    
344
347
    mandos_serv = dbus.Interface(mandos_dbus_objc,
345
348
                                 dbus_interface = server_interface)
 
349
    mandos_serv_object_manager = dbus.Interface(
 
350
        mandos_dbus_objc, dbus_interface = dbus.OBJECT_MANAGER_IFACE)
346
351
    
347
352
    #block stderr since dbus library prints to stderr
348
353
    null = os.open(os.path.devnull, os.O_RDWR)
351
356
    os.close(null)
352
357
    try:
353
358
        try:
354
 
            mandos_clients = mandos_serv.GetAllClientsWithProperties()
 
359
            mandos_clients = { path: ifs_and_props[client_interface]
 
360
                               for path, ifs_and_props in
 
361
                               mandos_serv_object_manager
 
362
                               .GetManagedObjects().items()
 
363
                               if client_interface in ifs_and_props }
355
364
        finally:
356
365
            #restore stderr
357
366
            os.dup2(stderrcopy, sys.stderr.fileno())
358
367
            os.close(stderrcopy)
359
 
    except dbus.exceptions.DBusException:
360
 
        print("Access denied: Accessing mandos server through dbus.",
361
 
              file=sys.stderr)
 
368
    except dbus.exceptions.DBusException as e:
 
369
        print("Access denied: Accessing mandos server through D-Bus: {}"
 
370
              .format(e), file=sys.stderr)
362
371
        sys.exit(1)
363
372
    
364
373
    # Compile dict of (clients: properties) to process
365
374
    clients={}
366
375
    
367
376
    if options.all or not options.client:
368
 
        clients = dict((bus.get_object(busname, path), properties)
369
 
                       for path, properties in
370
 
                       mandos_clients.iteritems())
 
377
        clients = { bus.get_object(busname, path): properties
 
378
                    for path, properties in mandos_clients.items() }
371
379
    else:
372
380
        for name in options.client:
373
 
            for path, client in mandos_clients.iteritems():
 
381
            for path, client in mandos_clients.items():
374
382
                if client["Name"] == name:
375
383
                    client_objc = bus.get_object(busname, path)
376
384
                    clients[client_objc] = client
377
385
                    break
378
386
            else:
379
 
                print("Client not found on server: {0!r}"
 
387
                print("Client not found on server: {!r}"
380
388
                      .format(name), file=sys.stderr)
381
389
                sys.exit(1)
382
390
    
383
391
    if not has_actions(options) and clients:
384
392
        if options.verbose:
385
 
            keywords = ("Name", "Enabled", "Timeout",
386
 
                        "LastCheckedOK", "Created", "Interval",
387
 
                        "Host", "Fingerprint", "CheckerRunning",
388
 
                        "LastEnabled", "ApprovalPending",
389
 
                        "ApprovedByDefault",
 
393
            keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
 
394
                        "Created", "Interval", "Host", "Fingerprint",
 
395
                        "CheckerRunning", "LastEnabled",
 
396
                        "ApprovalPending", "ApprovedByDefault",
390
397
                        "LastApprovalRequest", "ApprovalDelay",
391
398
                        "ApprovalDuration", "Checker",
392
399
                        "ExtendedTimeout")
397
404
    else:
398
405
        # Process each client in the list by all selected options
399
406
        for client in clients:
 
407
            
400
408
            def set_client_prop(prop, value):
401
409
                """Set a Client D-Bus property"""
402
410
                client.Set(client_interface, prop, value,
403
411
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
412
            
404
413
            def set_client_prop_ms(prop, value):
405
414
                """Set a Client D-Bus property, converted
406
415
                from a string to milliseconds."""
407
416
                set_client_prop(prop,
408
 
                                timedelta_to_milliseconds
409
 
                                (string_to_delta(value)))
 
417
                                string_to_delta(value).total_seconds()
 
418
                                * 1000)
 
419
            
410
420
            if options.remove:
411
421
                mandos_serv.RemoveClient(client.__dbus_object_path__)
412
422
            if options.enable:
456
466
                client.Approve(dbus.Boolean(False),
457
467
                               dbus_interface=client_interface)
458
468
 
 
469
 
459
470
if __name__ == "__main__":
460
471
    main()