71
77
def milliseconds_to_string(ms):
 
72
78
    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,
 
 
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,
 
 
87
def rfc3339_duration_to_delta(duration):
 
 
88
    """Parse an RFC 3339 "duration" and return a datetime.timedelta
 
 
90
    >>> rfc3339_duration_to_delta("P7D")
 
 
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")
 
 
98
    >>> rfc3339_duration_to_delta("P1W")
 
 
100
    >>> rfc3339_duration_to_delta("PT5M30S")
 
 
101
    datetime.timedelta(0, 330)
 
 
102
    >>> rfc3339_duration_to_delta("P1DT3M20S")
 
 
103
    datetime.timedelta(1, 200)
 
 
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.
 
 
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"
 
 
119
                                    "value",  # datetime.timedelta or
 
 
121
                                    "followers")) # Tokens valid after
 
 
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"),
 
 
137
                       frozenset((token_hour, token_minute,
 
 
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,
 
 
155
    # Define starting values
 
 
156
    value = datetime.timedelta() # Value so far
 
 
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:
 
 
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)
 
 
176
                # Set valid next tokens
 
 
177
                followers = found_token.followers
 
 
180
            # No currently valid tokens were found
 
 
181
            raise ValueError("Invalid RFC 3339 duration")
 
80
186
def string_to_delta(interval):
 
81
187
    """Parse a string and return a datetime.timedelta
 
 
116
228
        if type(value) is dbus.Boolean:
 
117
229
            return "Yes" if value else "No"
 
118
230
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
 
 
231
                       "ApprovalDuration", "ExtendedTimeout"):
 
120
232
            return milliseconds_to_string(value)
 
121
233
        return unicode(value)
 
123
235
    # Create format string to print table rows
 
124
 
    format_string = " ".join("%%-%ds" %
 
125
 
                             max(len(tablewords[key]),
 
126
 
                                 max(len(valuetostring(client[key],
 
 
236
    format_string = " ".join("{{{key}:{width}}}".format(
 
 
237
            width = max(len(tablewords[key]),
 
 
238
                        max(len(valuetostring(client[key],
 
 
242
            key = key) for key in keywords)
 
131
243
    # Print header line
 
132
 
    print(format_string % tuple(tablewords[key] for key in keywords))
 
 
244
    print(format_string.format(**tablewords))
 
133
245
    for client in clients:
 
134
 
        print(format_string % tuple(valuetostring(client[key], key)
 
135
 
                                    for key in keywords))
 
 
246
        print(format_string.format(**dict((key,
 
 
247
                                           valuetostring(client[key],
 
 
249
                                          for key in keywords)))
 
137
251
def has_actions(options):
 
138
252
    return any((options.enable,
 
 
202
316
                        help="Approve any current client request")
 
203
317
    parser.add_argument("-D", "--deny", action="store_true",
 
204
318
                        help="Deny any current client request")
 
 
319
    parser.add_argument("--check", action="store_true",
 
 
320
                        help="Run self-test")
 
205
321
    parser.add_argument("client", nargs="*", help="Client name")
 
206
322
    options = parser.parse_args()
 
208
 
    if has_actions(options) and not options.client and not options.all:
 
 
324
    if has_actions(options) and not (options.client or options.all):
 
209
325
        parser.error("Options require clients names or --all.")
 
210
326
    if options.verbose and has_actions(options):
 
211
327
        parser.error("--verbose can only be used alone or with"
 
213
329
    if options.all and not has_actions(options):
 
214
330
        parser.error("--all requires an action.")
 
 
333
        fail_count, test_count = doctest.testmod()
 
 
334
        sys.exit(os.EX_OK if fail_count == 0 else 1)
 
217
337
        bus = dbus.SystemBus()
 
 
278
398
        # Process each client in the list by all selected options
 
279
399
        for client in clients:
 
 
400
            def set_client_prop(prop, value):
 
 
401
                """Set a Client D-Bus property"""
 
 
402
                client.Set(client_interface, prop, value,
 
 
403
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
404
            def set_client_prop_ms(prop, value):
 
 
405
                """Set a Client D-Bus property, converted
 
 
406
                from a string to milliseconds."""
 
 
407
                set_client_prop(prop,
 
 
408
                                timedelta_to_milliseconds
 
 
409
                                (string_to_delta(value)))
 
280
410
            if options.remove:
 
281
411
                mandos_serv.RemoveClient(client.__dbus_object_path__)
 
282
412
            if options.enable:
 
283
 
                client.Enable(dbus_interface=client_interface)
 
 
413
                set_client_prop("Enabled", dbus.Boolean(True))
 
284
414
            if options.disable:
 
285
 
                client.Disable(dbus_interface=client_interface)
 
 
415
                set_client_prop("Enabled", dbus.Boolean(False))
 
286
416
            if options.bump_timeout:
 
287
 
                client.CheckedOK(dbus_interface=client_interface)
 
 
417
                set_client_prop("LastCheckedOK", "")
 
288
418
            if options.start_checker:
 
289
 
                client.StartChecker(dbus_interface=client_interface)
 
 
419
                set_client_prop("CheckerRunning", dbus.Boolean(True))
 
290
420
            if options.stop_checker:
 
291
 
                client.StopChecker(dbus_interface=client_interface)
 
 
421
                set_client_prop("CheckerRunning", dbus.Boolean(False))
 
292
422
            if options.is_enabled:
 
293
423
                sys.exit(0 if client.Get(client_interface,
 
 
296
426
                                         dbus.PROPERTIES_IFACE)
 
298
428
            if options.checker is not None:
 
299
 
                client.Set(client_interface, "Checker",
 
301
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
429
                set_client_prop("Checker", options.checker)
 
302
430
            if options.host is not None:
 
303
 
                client.Set(client_interface, "Host", options.host,
 
304
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
431
                set_client_prop("Host", options.host)
 
305
432
            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)
 
 
433
                set_client_prop_ms("Interval", options.interval)
 
310
434
            if options.approval_delay is not None:
 
311
 
                client.Set(client_interface, "ApprovalDelay",
 
312
 
                           timedelta_to_milliseconds
 
313
 
                           (string_to_delta(options.
 
315
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
435
                set_client_prop_ms("ApprovalDelay",
 
 
436
                                   options.approval_delay)
 
316
437
            if options.approval_duration is not None:
 
317
 
                client.Set(client_interface, "ApprovalDuration",
 
318
 
                           timedelta_to_milliseconds
 
319
 
                           (string_to_delta(options.
 
321
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
438
                set_client_prop_ms("ApprovalDuration",
 
 
439
                                   options.approval_duration)
 
322
440
            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)
 
 
441
                set_client_prop_ms("Timeout", options.timeout)
 
327
442
            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)
 
 
443
                set_client_prop_ms("ExtendedTimeout",
 
 
444
                                   options.extended_timeout)
 
332
445
            if options.secret is not None:
 
333
 
                client.Set(client_interface, "Secret",
 
334
 
                           dbus.ByteArray(options.secret.read()),
 
335
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
446
                set_client_prop("Secret",
 
 
447
                                dbus.ByteArray(options.secret.read()))
 
336
448
            if options.approved_by_default is not None:
 
337
 
                client.Set(client_interface, "ApprovedByDefault",
 
339
 
                                        .approved_by_default),
 
340
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
449
                set_client_prop("ApprovedByDefault",
 
 
451
                                             .approved_by_default))
 
341
452
            if options.approve:
 
342
453
                client.Approve(dbus.Boolean(True),
 
343
454
                               dbus_interface=client_interface)