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  • Committer: Teddy Hogeborn
  • Date: 2015-04-03 03:01:02 UTC
  • Revision ID: teddy@recompile.se-20150403030102-xdxyaqcwc4wmqeyb
mandos: Do minor formatting and whitespace adjustments.

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# Mandos Monitor - Control and monitor the Mandos server
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# Copyright © 2008-2012 Teddy Hogeborn
7
 
# Copyright © 2008-2012 Björn Påhlsson
 
6
# Copyright © 2008-2015 Teddy Hogeborn
 
7
# Copyright © 2008-2015 Björn Påhlsson
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# 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
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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
 
 
43
import dbus
 
44
 
 
45
if sys.version_info.major == 2:
 
46
    str = unicode
36
47
 
37
48
locale.setlocale(locale.LC_ALL, "")
38
49
 
53
64
    "ApprovalDelay": "Approval Delay",
54
65
    "ApprovalDuration": "Approval Duration",
55
66
    "Checker": "Checker",
56
 
    "ExtendedTimeout" : "Extended Timeout"
57
 
    }
 
67
    "ExtendedTimeout": "Extended Timeout"
 
68
}
58
69
defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
59
70
domain = "se.recompile"
60
71
busname = domain + ".Mandos"
61
72
server_path = "/"
62
73
server_interface = domain + ".Mandos"
63
74
client_interface = domain + ".Mandos.Client"
64
 
version = "1.5.3"
 
75
version = "1.6.9"
65
76
 
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))
71
77
 
72
78
def milliseconds_to_string(ms):
73
79
    td = datetime.timedelta(0, 0, 0, ms)
74
 
    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
 
                    ))
 
80
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}".format(
 
81
        days = "{}T".format(td.days) if td.days else "",
 
82
        hours = td.seconds // 3600,
 
83
        minutes = (td.seconds % 3600) // 60,
 
84
        seconds = td.seconds % 60))
 
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
 
80
185
 
81
186
def string_to_delta(interval):
82
187
    """Parse a string and return a datetime.timedelta
94
199
    >>> string_to_delta("5m 30s")
95
200
    datetime.timedelta(0, 330)
96
201
    """
 
202
    
 
203
    try:
 
204
        return rfc3339_duration_to_delta(interval)
 
205
    except ValueError:
 
206
        pass
 
207
    
97
208
    value = datetime.timedelta(0)
98
 
    regexp = re.compile("(\d+)([dsmhw]?)")
 
209
    regexp = re.compile(r"(\d+)([dsmhw]?)")
99
210
    
100
211
    for num, suffix in regexp.findall(interval):
101
212
        if suffix == "d":
112
223
            value += datetime.timedelta(0, 0, 0, int(num))
113
224
    return value
114
225
 
 
226
 
115
227
def print_clients(clients, keywords):
116
228
    def valuetostring(value, keyword):
117
229
        if type(value) is dbus.Boolean:
119
231
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
120
232
                       "ApprovalDuration", "ExtendedTimeout"):
121
233
            return milliseconds_to_string(value)
122
 
        return unicode(value)
 
234
        return str(value)
123
235
    
124
236
    # Create format string to print table rows
125
237
    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)
 
238
        width = max(len(tablewords[key]),
 
239
                    max(len(valuetostring(client[key], key))
 
240
                        for client in clients)),
 
241
        key = key)
 
242
                             for key in keywords)
132
243
    # Print header line
133
244
    print(format_string.format(**tablewords))
134
245
    for client in clients:
135
 
        print(format_string.format(**dict((key,
136
 
                                           valuetostring(client[key],
137
 
                                                         key))
138
 
                                          for key in keywords)))
 
246
        print(format_string.format(**{
 
247
            key: valuetostring(client[key], key)
 
248
            for key in keywords }))
 
249
 
139
250
 
140
251
def has_actions(options):
141
252
    return any((options.enable,
157
268
                options.approve,
158
269
                options.deny))
159
270
 
 
271
 
160
272
def main():
161
273
    parser = argparse.ArgumentParser()
162
274
    parser.add_argument("--version", action="version",
163
 
                        version = "%(prog)s {0}".format(version),
 
275
                        version = "%(prog)s {}".format(version),
164
276
                        help="show version number and exit")
165
277
    parser.add_argument("-a", "--all", action="store_true",
166
278
                        help="Select all clients")
199
311
    parser.add_argument("--approval-duration",
200
312
                        help="Set duration of one client approval")
201
313
    parser.add_argument("-H", "--host", help="Set host for client")
202
 
    parser.add_argument("-s", "--secret", type=file,
 
314
    parser.add_argument("-s", "--secret",
 
315
                        type=argparse.FileType(mode="rb"),
203
316
                        help="Set password blob (file) for client")
204
317
    parser.add_argument("-A", "--approve", action="store_true",
205
318
                        help="Approve any current client request")
206
319
    parser.add_argument("-D", "--deny", action="store_true",
207
320
                        help="Deny any current client request")
 
321
    parser.add_argument("--check", action="store_true",
 
322
                        help="Run self-test")
208
323
    parser.add_argument("client", nargs="*", help="Client name")
209
324
    options = parser.parse_args()
210
325
    
215
330
                     " --all.")
216
331
    if options.all and not has_actions(options):
217
332
        parser.error("--all requires an action.")
 
333
 
 
334
    if options.check:
 
335
        fail_count, test_count = doctest.testmod()
 
336
        sys.exit(os.EX_OK if fail_count == 0 else 1)
218
337
    
219
338
    try:
220
339
        bus = dbus.SystemBus()
221
340
        mandos_dbus_objc = bus.get_object(busname, server_path)
222
341
    except dbus.exceptions.DBusException:
223
 
        print("Could not connect to Mandos server",
224
 
              file=sys.stderr)
 
342
        print("Could not connect to Mandos server", file=sys.stderr)
225
343
        sys.exit(1)
226
344
    
227
345
    mandos_serv = dbus.Interface(mandos_dbus_objc,
248
366
    clients={}
249
367
    
250
368
    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())
 
369
        clients = { bus.get_object(busname, path): properties
 
370
                    for path, properties in mandos_clients.items() }
254
371
    else:
255
372
        for name in options.client:
256
 
            for path, client in mandos_clients.iteritems():
 
373
            for path, client in mandos_clients.items():
257
374
                if client["Name"] == name:
258
375
                    client_objc = bus.get_object(busname, path)
259
376
                    clients[client_objc] = client
260
377
                    break
261
378
            else:
262
 
                print("Client not found on server: {0!r}"
 
379
                print("Client not found on server: {!r}"
263
380
                      .format(name), file=sys.stderr)
264
381
                sys.exit(1)
265
382
    
266
383
    if not has_actions(options) and clients:
267
384
        if options.verbose:
268
 
            keywords = ("Name", "Enabled", "Timeout",
269
 
                        "LastCheckedOK", "Created", "Interval",
270
 
                        "Host", "Fingerprint", "CheckerRunning",
271
 
                        "LastEnabled", "ApprovalPending",
272
 
                        "ApprovedByDefault",
 
385
            keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
 
386
                        "Created", "Interval", "Host", "Fingerprint",
 
387
                        "CheckerRunning", "LastEnabled",
 
388
                        "ApprovalPending", "ApprovedByDefault",
273
389
                        "LastApprovalRequest", "ApprovalDelay",
274
390
                        "ApprovalDuration", "Checker",
275
391
                        "ExtendedTimeout")
280
396
    else:
281
397
        # Process each client in the list by all selected options
282
398
        for client in clients:
 
399
            
283
400
            def set_client_prop(prop, value):
284
401
                """Set a Client D-Bus property"""
285
402
                client.Set(client_interface, prop, value,
286
403
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
404
            
287
405
            def set_client_prop_ms(prop, value):
288
406
                """Set a Client D-Bus property, converted
289
407
                from a string to milliseconds."""
290
408
                set_client_prop(prop,
291
 
                                timedelta_to_milliseconds
292
 
                                (string_to_delta(value)))
 
409
                                string_to_delta(value).total_seconds()
 
410
                                * 1000)
 
411
            
293
412
            if options.remove:
294
413
                mandos_serv.RemoveClient(client.__dbus_object_path__)
295
414
            if options.enable:
339
458
                client.Approve(dbus.Boolean(False),
340
459
                               dbus_interface=client_interface)
341
460
 
 
461
 
342
462
if __name__ == "__main__":
343
463
    main()