2
2
# -*- mode: python; coding: utf-8 -*-
4
4
# Mandos Monitor - Control and monitor the Mandos server
6
# Copyright © 2008-2016 Teddy Hogeborn
7
# Copyright © 2008-2016 Björn Påhlsson
6
# Copyright © 2008-2015 Teddy Hogeborn
7
# Copyright © 2008-2015 Björn Påhlsson
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
11
11
# the Free Software Foundation, either version 3 of the License, or
15
15
# but WITHOUT ANY WARRANTY; without even the implied warranty of
16
16
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17
17
# GNU General Public License for more details.
19
19
# You should have received a copy of the GNU General Public License
20
20
# along with this program. If not, see
21
21
# <http://www.gnu.org/licenses/>.
23
23
# Contact the authors at <mandos@recompile.se>.
26
26
from __future__ import (division, absolute_import, print_function,
65
64
"ApprovalDelay": "Approval Delay",
66
65
"ApprovalDuration": "Approval Duration",
67
66
"Checker": "Checker",
68
"ExtendedTimeout": "Extended Timeout",
70
"LastCheckerStatus": "Last Checker Status",
67
"ExtendedTimeout": "Extended Timeout"
72
69
defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
73
70
domain = "se.recompile"
76
73
server_interface = domain + ".Mandos"
77
74
client_interface = domain + ".Mandos.Client"
82
dbus.OBJECT_MANAGER_IFACE
83
except AttributeError:
84
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
87
78
def milliseconds_to_string(ms):
88
79
td = datetime.timedelta(0, 0, 0, ms)
89
return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
90
.format(days="{}T".format(td.days) if td.days else "",
91
hours=td.seconds // 3600,
92
minutes=(td.seconds % 3600) // 60,
93
seconds=td.seconds % 60))
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))
96
87
def rfc3339_duration_to_delta(duration):
97
88
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
99
90
>>> rfc3339_duration_to_delta("P7D")
100
91
datetime.timedelta(7)
101
92
>>> rfc3339_duration_to_delta("PT60S")
111
102
>>> rfc3339_duration_to_delta("P1DT3M20S")
112
103
datetime.timedelta(1, 200)
115
106
# Parsing an RFC 3339 duration with regular expressions is not
116
107
# possible - there would have to be multiple places for the same
117
108
# values, like seconds. The current code, while more esoteric, is
118
109
# cleaner without depending on a parsing library. If Python had a
119
110
# built-in library for parsing we would use it, but we'd like to
120
111
# avoid excessive use of external libraries.
122
113
# New type for defining tokens, syntax, and semantics all-in-one
123
Token = collections.namedtuple("Token", (
124
"regexp", # To match token; if "value" is not None, must have
125
# a "group" containing digits
126
"value", # datetime.timedelta or None
127
"followers")) # Tokens valid after this token
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
128
123
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
129
124
# the "duration" ABNF definition in RFC 3339, Appendix A.
130
125
token_end = Token(re.compile(r"$"), None, frozenset())
157
152
frozenset((token_year, token_month,
158
153
token_day, token_time,
160
# Define starting values:
162
value = datetime.timedelta()
155
# Define starting values
156
value = datetime.timedelta() # Value so far
163
157
found_token = None
164
# Following valid tokens
165
followers = frozenset((token_duration, ))
166
# String left to parse
158
followers = frozenset((token_duration, )) # Following valid tokens
159
s = duration # String left to parse
168
160
# Loop until end token is found
169
161
while found_token is not token_end:
170
162
# Search for any currently valid tokens
188
180
# No currently valid tokens were found
189
raise ValueError("Invalid RFC 3339 duration: {!r}"
181
raise ValueError("Invalid RFC 3339 duration")
191
182
# End token found
195
186
def string_to_delta(interval):
196
187
"""Parse a string and return a datetime.timedelta
198
>>> string_to_delta('7d')
189
>>> string_to_delta("7d")
199
190
datetime.timedelta(7)
200
>>> string_to_delta('60s')
191
>>> string_to_delta("60s")
201
192
datetime.timedelta(0, 60)
202
>>> string_to_delta('60m')
193
>>> string_to_delta("60m")
203
194
datetime.timedelta(0, 3600)
204
>>> string_to_delta('24h')
195
>>> string_to_delta("24h")
205
196
datetime.timedelta(1)
206
>>> string_to_delta('1w')
197
>>> string_to_delta("1w")
207
198
datetime.timedelta(7)
208
>>> string_to_delta('5m 30s')
199
>>> string_to_delta("5m 30s")
209
200
datetime.timedelta(0, 330)
213
204
return rfc3339_duration_to_delta(interval)
214
205
except ValueError:
217
208
value = datetime.timedelta(0)
218
209
regexp = re.compile(r"(\d+)([dsmhw]?)")
220
211
for num, suffix in regexp.findall(interval):
221
212
if suffix == "d":
222
213
value += datetime.timedelta(int(num))
241
232
"ApprovalDuration", "ExtendedTimeout"):
242
233
return milliseconds_to_string(value)
243
234
return str(value)
245
236
# Create format string to print table rows
246
237
format_string = " ".join("{{{key}:{width}}}".format(
247
width=max(len(tablewords[key]),
248
max(len(valuetostring(client[key], key))
249
for client in clients)),
238
width = max(len(tablewords[key]),
239
max(len(valuetostring(client[key], key))
240
for client in clients)),
251
242
for key in keywords)
252
243
# Print header line
253
244
print(format_string.format(**tablewords))
254
245
for client in clients:
256
.format(**{key: valuetostring(client[key], key)
257
for key in keywords}))
246
print(format_string.format(**{
247
key: valuetostring(client[key], key)
248
for key in keywords }))
260
251
def has_actions(options):
282
273
parser = argparse.ArgumentParser()
283
274
parser.add_argument("--version", action="version",
284
version="%(prog)s {}".format(version),
275
version = "%(prog)s {}".format(version),
285
276
help="show version number and exit")
286
277
parser.add_argument("-a", "--all", action="store_true",
287
278
help="Select all clients")
288
279
parser.add_argument("-v", "--verbose", action="store_true",
289
280
help="Print all fields")
290
parser.add_argument("-j", "--dump-json", action="store_true",
291
help="Dump client data in JSON format")
292
281
parser.add_argument("-e", "--enable", action="store_true",
293
282
help="Enable client")
294
283
parser.add_argument("-d", "--disable", action="store_true",
333
322
help="Run self-test")
334
323
parser.add_argument("client", nargs="*", help="Client name")
335
324
options = parser.parse_args()
337
326
if has_actions(options) and not (options.client or options.all):
338
327
parser.error("Options require clients names or --all.")
339
328
if options.verbose and has_actions(options):
340
parser.error("--verbose can only be used alone.")
341
if options.dump_json and (options.verbose
342
or has_actions(options)):
343
parser.error("--dump-json can only be used alone.")
329
parser.error("--verbose can only be used alone or with"
344
331
if options.all and not has_actions(options):
345
332
parser.error("--all requires an action.")
347
334
if options.check:
348
335
fail_count, test_count = doctest.testmod()
349
336
sys.exit(os.EX_OK if fail_count == 0 else 1)
352
339
bus = dbus.SystemBus()
353
340
mandos_dbus_objc = bus.get_object(busname, server_path)
354
341
except dbus.exceptions.DBusException:
355
342
print("Could not connect to Mandos server", file=sys.stderr)
358
345
mandos_serv = dbus.Interface(mandos_dbus_objc,
359
dbus_interface=server_interface)
360
mandos_serv_object_manager = dbus.Interface(
361
mandos_dbus_objc, dbus_interface=dbus.OBJECT_MANAGER_IFACE)
363
# block stderr since dbus library prints to stderr
346
dbus_interface = server_interface)
348
#block stderr since dbus library prints to stderr
364
349
null = os.open(os.path.devnull, os.O_RDWR)
365
350
stderrcopy = os.dup(sys.stderr.fileno())
366
351
os.dup2(null, sys.stderr.fileno())
370
mandos_clients = {path: ifs_and_props[client_interface]
371
for path, ifs_and_props in
372
mandos_serv_object_manager
373
.GetManagedObjects().items()
374
if client_interface in ifs_and_props}
355
mandos_clients = mandos_serv.GetAllClientsWithProperties()
377
358
os.dup2(stderrcopy, sys.stderr.fileno())
378
359
os.close(stderrcopy)
379
except dbus.exceptions.DBusException as e:
380
print("Access denied: "
381
"Accessing mandos server through D-Bus: {}".format(e),
360
except dbus.exceptions.DBusException:
361
print("Access denied: Accessing mandos server through dbus.",
385
365
# Compile dict of (clients: properties) to process
388
368
if options.all or not options.client:
389
clients = {bus.get_object(busname, path): properties
390
for path, properties in mandos_clients.items()}
369
clients = { bus.get_object(busname, path): properties
370
for path, properties in mandos_clients.items() }
392
372
for name in options.client:
393
373
for path, client in mandos_clients.items():
399
379
print("Client not found on server: {!r}"
400
380
.format(name), file=sys.stderr)
403
383
if not has_actions(options) and clients:
404
if options.verbose or options.dump_json:
405
385
keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
406
386
"Created", "Interval", "Host", "Fingerprint",
407
387
"CheckerRunning", "LastEnabled",
408
388
"ApprovalPending", "ApprovedByDefault",
409
389
"LastApprovalRequest", "ApprovalDelay",
410
390
"ApprovalDuration", "Checker",
411
"ExtendedTimeout", "Expires",
414
393
keywords = defaultkeywords
416
if options.dump_json:
417
json.dump({client["Name"]: {key:
419
if isinstance(client[key],
423
for client in clients.values()},
424
fp=sys.stdout, indent=4,
425
separators=(',', ': '))
428
print_clients(clients.values(), keywords)
395
print_clients(clients.values(), keywords)
430
397
# Process each client in the list by all selected options
431
398
for client in clients:
433
400
def set_client_prop(prop, value):
434
401
"""Set a Client D-Bus property"""
435
402
client.Set(client_interface, prop, value,
436
403
dbus_interface=dbus.PROPERTIES_IFACE)
438
405
def set_client_prop_ms(prop, value):
439
406
"""Set a Client D-Bus property, converted
440
407
from a string to milliseconds."""
441
408
set_client_prop(prop,
442
409
string_to_delta(value).total_seconds()
445
412
if options.remove:
446
413
mandos_serv.RemoveClient(client.__dbus_object_path__)
447
414
if options.enable:
455
422
if options.stop_checker:
456
423
set_client_prop("CheckerRunning", dbus.Boolean(False))
457
424
if options.is_enabled:
458
if client.Get(client_interface, "Enabled",
459
dbus_interface=dbus.PROPERTIES_IFACE):
425
sys.exit(0 if client.Get(client_interface,
428
dbus.PROPERTIES_IFACE)
463
430
if options.checker is not None:
464
431
set_client_prop("Checker", options.checker)
465
432
if options.host is not None: