77
89
seconds = td.seconds % 60,
93
def rfc3339_duration_to_delta(duration):
94
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
96
>>> rfc3339_duration_to_delta("P7D")
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)
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.
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"
125
"value", # datetime.timedelta or
127
"followers")) # Tokens valid after
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"),
143
frozenset((token_hour, token_minute,
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,
161
# Define starting values
162
value = datetime.timedelta() # Value so far
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:
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)
182
# Set valid next tokens
183
followers = found_token.followers
186
# No currently valid tokens were found
187
raise ValueError("Invalid RFC 3339 duration")
80
192
def string_to_delta(interval):
81
193
"""Parse a string and return a datetime.timedelta
198
316
parser.add_argument("--approval-duration",
199
317
help="Set duration of one client approval")
200
318
parser.add_argument("-H", "--host", help="Set host for client")
201
parser.add_argument("-s", "--secret", type=file,
319
parser.add_argument("-s", "--secret",
320
type=argparse.FileType(mode="rb"),
202
321
help="Set password blob (file) for client")
203
322
parser.add_argument("-A", "--approve", action="store_true",
204
323
help="Approve any current client request")
205
324
parser.add_argument("-D", "--deny", action="store_true",
206
325
help="Deny any current client request")
326
parser.add_argument("--check", action="store_true",
327
help="Run self-test")
207
328
parser.add_argument("client", nargs="*", help="Client name")
208
329
options = parser.parse_args()
210
if has_actions(options) and not options.client and not options.all:
331
if has_actions(options) and not (options.client or options.all):
211
332
parser.error("Options require clients names or --all.")
212
333
if options.verbose and has_actions(options):
213
334
parser.error("--verbose can only be used alone or with"
215
336
if options.all and not has_actions(options):
216
337
parser.error("--all requires an action.")
340
fail_count, test_count = doctest.testmod()
341
sys.exit(os.EX_OK if fail_count == 0 else 1)
219
344
bus = dbus.SystemBus()
280
405
# Process each client in the list by all selected options
281
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)))
282
417
if options.remove:
283
418
mandos_serv.RemoveClient(client.__dbus_object_path__)
284
419
if options.enable:
285
client.Set(client_interface, "Enabled",
287
dbus_interface=dbus.PROPERTIES_IFACE)
420
set_client_prop("Enabled", dbus.Boolean(True))
288
421
if options.disable:
289
client.Set(client_interface, "Enabled",
291
dbus_interface=dbus.PROPERTIES_IFACE)
422
set_client_prop("Enabled", dbus.Boolean(False))
292
423
if options.bump_timeout:
293
client.Set(client_interface, "LastCheckedOK", "",
294
dbus_interface=dbus.PROPERTIES_IFACE)
424
set_client_prop("LastCheckedOK", "")
295
425
if options.start_checker:
296
client.Set(client_interface, "CheckerRunning",
298
dbus_interface=dbus.PROPERTIES_IFACE)
426
set_client_prop("CheckerRunning", dbus.Boolean(True))
299
427
if options.stop_checker:
300
client.Set(client_interface, "CheckerRunning",
302
dbus_interface=dbus.PROPERTIES_IFACE)
428
set_client_prop("CheckerRunning", dbus.Boolean(False))
303
429
if options.is_enabled:
304
430
sys.exit(0 if client.Get(client_interface,
307
433
dbus.PROPERTIES_IFACE)
309
435
if options.checker is not None:
310
client.Set(client_interface, "Checker",
312
dbus_interface=dbus.PROPERTIES_IFACE)
436
set_client_prop("Checker", options.checker)
313
437
if options.host is not None:
314
client.Set(client_interface, "Host", options.host,
315
dbus_interface=dbus.PROPERTIES_IFACE)
438
set_client_prop("Host", options.host)
316
439
if options.interval is not None:
317
client.Set(client_interface, "Interval",
318
timedelta_to_milliseconds
319
(string_to_delta(options.interval)),
320
dbus_interface=dbus.PROPERTIES_IFACE)
440
set_client_prop_ms("Interval", options.interval)
321
441
if options.approval_delay is not None:
322
client.Set(client_interface, "ApprovalDelay",
323
timedelta_to_milliseconds
324
(string_to_delta(options.
326
dbus_interface=dbus.PROPERTIES_IFACE)
442
set_client_prop_ms("ApprovalDelay",
443
options.approval_delay)
327
444
if options.approval_duration is not None:
328
client.Set(client_interface, "ApprovalDuration",
329
timedelta_to_milliseconds
330
(string_to_delta(options.
332
dbus_interface=dbus.PROPERTIES_IFACE)
445
set_client_prop_ms("ApprovalDuration",
446
options.approval_duration)
333
447
if options.timeout is not None:
334
client.Set(client_interface, "Timeout",
335
timedelta_to_milliseconds
336
(string_to_delta(options.timeout)),
337
dbus_interface=dbus.PROPERTIES_IFACE)
448
set_client_prop_ms("Timeout", options.timeout)
338
449
if options.extended_timeout is not None:
339
client.Set(client_interface, "ExtendedTimeout",
340
timedelta_to_milliseconds
341
(string_to_delta(options.extended_timeout)),
342
dbus_interface=dbus.PROPERTIES_IFACE)
450
set_client_prop_ms("ExtendedTimeout",
451
options.extended_timeout)
343
452
if options.secret is not None:
344
client.Set(client_interface, "Secret",
345
dbus.ByteArray(options.secret.read()),
346
dbus_interface=dbus.PROPERTIES_IFACE)
453
set_client_prop("Secret",
454
dbus.ByteArray(options.secret.read()))
347
455
if options.approved_by_default is not None:
348
client.Set(client_interface, "ApprovedByDefault",
350
.approved_by_default),
351
dbus_interface=dbus.PROPERTIES_IFACE)
456
set_client_prop("ApprovedByDefault",
458
.approved_by_default))
352
459
if options.approve:
353
460
client.Approve(dbus.Boolean(True),
354
461
dbus_interface=client_interface)