2
2
# -*- mode: python; coding: utf-8 -*-
4
# Mandos Monitor - Control and monitor the Mandos server
6
# Copyright © 2009-2012 Teddy Hogeborn
7
# Copyright © 2009-2012 Björn Påhlsson
9
# This program is free software: you can redistribute it and/or modify
10
# it under the terms of the GNU General Public License as published by
11
# the Free Software Foundation, either version 3 of the License, or
12
# (at your option) any later version.
14
# This program is distributed in the hope that it will be useful,
15
# but WITHOUT ANY WARRANTY; without even the implied warranty of
16
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17
# GNU General Public License for more details.
19
# You should have received a copy of the GNU General Public License
20
# along with this program. If not, see
21
# <http://www.gnu.org/licenses/>.
23
# Contact the authors at <mandos@recompile.se>.
26
from __future__ import (division, absolute_import, print_function,
29
from future_builtins import *
4
from __future__ import division, absolute_import, with_statement
42
15
from dbus.mainloop.glib import DBusGMainLoop
46
from gi.repository import GObject as gobject
52
if sys.version_info[0] == 2:
55
locale.setlocale(locale.LC_ALL, '')
24
locale.setlocale(locale.LC_ALL, u'')
58
27
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
60
29
# Some useful constants
61
domain = 'se.recompile'
30
domain = 'se.bsnet.fukt'
62
31
server_interface = domain + '.Mandos'
63
32
client_interface = domain + '.Mandos.Client'
35
# Always run in monochrome mode
36
urwid.curses_display.curses.has_colors = lambda : False
38
# Urwid doesn't support blinking, but we want it. Since we have no
39
# use for underline on its own, we make underline also always blink.
40
urwid.curses_display.curses.A_UNDERLINE |= (
41
urwid.curses_display.curses.A_BLINK)
66
43
def isoformat_to_datetime(iso):
67
44
"Parse an ISO 8601 date string to a datetime.datetime()"
70
d, t = iso.split("T", 1)
71
year, month, day = d.split("-", 2)
72
hour, minute, second = t.split(":", 2)
47
d, t = iso.split(u"T", 1)
48
year, month, day = d.split(u"-", 2)
49
hour, minute, second = t.split(u":", 2)
73
50
second, fraction = divmod(float(second), 1)
74
51
return datetime.datetime(int(year),
84
61
properties and calls a hook function when any of them are
87
def __init__(self, proxy_object=None, properties=None, **kwargs):
64
def __init__(self, proxy_object=None, *args, **kwargs):
88
65
self.proxy = proxy_object # Mandos Client proxy object
89
self.properties = dict() if properties is None else properties
90
self.property_changed_match = (
91
self.proxy.connect_to_signal("PropertyChanged",
92
self._property_changed,
96
if properties is None:
97
self.properties.update(
98
self.proxy.GetAll(client_interface,
100
= dbus.PROPERTIES_IFACE))
102
super(MandosClientPropertyCache, self).__init__(**kwargs)
104
def _property_changed(self, property, value):
105
"""Helper which takes positional arguments"""
106
return self.property_changed(property=property, value=value)
67
self.properties = dict()
68
self.proxy.connect_to_signal(u"PropertyChanged",
69
self.property_changed,
73
self.properties.update(
74
self.proxy.GetAll(client_interface,
75
dbus_interface = dbus.PROPERTIES_IFACE))
77
#XXX This break good super behaviour!
78
# super(MandosClientPropertyCache, self).__init__(
108
81
def property_changed(self, property=None, value=None):
109
82
"""This is called whenever we get a PropertyChanged signal
132
102
self.logger = logger
134
104
self._update_timer_callback_tag = None
105
self._update_timer_callback_lock = 0
106
self.last_checker_failed = False
136
108
# The widget shown normally
137
self._text_widget = urwid.Text("")
109
self._text_widget = urwid.Text(u"")
138
110
# The widget shown when we have focus
139
self._focus_text_widget = urwid.Text("")
140
super(MandosClientWidget, self).__init__(**kwargs)
111
self._focus_text_widget = urwid.Text(u"")
112
super(MandosClientWidget, self).__init__(
113
update_hook=update_hook, delete_hook=delete_hook,
142
116
self.opened = False
144
self.match_objects = (
145
self.proxy.connect_to_signal("CheckerCompleted",
146
self.checker_completed,
149
self.proxy.connect_to_signal("CheckerStarted",
150
self.checker_started,
153
self.proxy.connect_to_signal("GotSecret",
157
self.proxy.connect_to_signal("NeedApproval",
161
self.proxy.connect_to_signal("Rejected",
165
#self.logger('Created client {0}'
166
# .format(self.properties["Name"]))
118
last_checked_ok = isoformat_to_datetime(self.properties
120
if last_checked_ok is None:
121
self.last_checker_failed = True
123
self.last_checker_failed = ((datetime.datetime.utcnow()
130
if self.last_checker_failed:
131
self.using_timer(True)
133
if self.need_approval:
134
self.using_timer(True)
136
self.proxy.connect_to_signal(u"CheckerCompleted",
137
self.checker_completed,
140
self.proxy.connect_to_signal(u"CheckerStarted",
141
self.checker_started,
144
self.proxy.connect_to_signal(u"GotSecret",
148
self.proxy.connect_to_signal(u"NeedApproval",
152
self.proxy.connect_to_signal(u"Rejected",
157
def property_changed(self, property=None, value=None):
158
super(self, MandosClientWidget).property_changed(property,
160
if property == u"ApprovalPending":
161
using_timer(bool(value))
168
163
def using_timer(self, flag):
169
164
"""Call this method with True or False when timer should be
170
165
activated or deactivated.
172
if flag and self._update_timer_callback_tag is None:
173
# Will update the shown timer value every second
167
old = self._update_timer_callback_lock
169
self._update_timer_callback_lock += 1
171
self._update_timer_callback_lock -= 1
172
if old == 0 and self._update_timer_callback_lock:
174
173
self._update_timer_callback_tag = (gobject.timeout_add
176
175
self.update_timer))
177
elif not (flag or self._update_timer_callback_tag is None):
176
elif old and self._update_timer_callback_lock == 0:
178
177
gobject.source_remove(self._update_timer_callback_tag)
179
178
self._update_timer_callback_tag = None
181
180
def checker_completed(self, exitstatus, condition, command):
182
181
if exitstatus == 0:
182
if self.last_checker_failed:
183
self.last_checker_failed = False
184
self.using_timer(False)
185
#self.logger(u'Checker for client %s (command "%s")'
187
# % (self.properties[u"Name"], command))
191
if not self.last_checker_failed:
192
self.last_checker_failed = True
193
self.using_timer(True)
186
194
if os.WIFEXITED(condition):
187
self.logger('Checker for client {0} (command "{1}")'
188
' failed with exit code {2}'
189
.format(self.properties["Name"], command,
190
os.WEXITSTATUS(condition)))
195
self.logger(u'Checker for client %s (command "%s")'
196
u' failed with exit code %s'
197
% (self.properties[u"Name"], command,
198
os.WEXITSTATUS(condition)))
191
199
elif os.WIFSIGNALED(condition):
192
self.logger('Checker for client {0} (command "{1}") was'
193
' killed by signal {2}'
194
.format(self.properties["Name"], command,
195
os.WTERMSIG(condition)))
200
self.logger(u'Checker for client %s (command "%s")'
201
u' was killed by signal %s'
202
% (self.properties[u"Name"], command,
203
os.WTERMSIG(condition)))
196
204
elif os.WCOREDUMP(condition):
197
self.logger('Checker for client {0} (command "{1}")'
199
.format(self.properties["Name"], command))
205
self.logger(u'Checker for client %s (command "%s")'
207
% (self.properties[u"Name"], command))
201
self.logger('Checker for client {0} completed'
203
.format(self.properties["Name"]))
209
self.logger(u'Checker for client %s completed'
206
213
def checker_started(self, command):
207
"""Server signals that a checker started. This could be useful
208
to log in the future. """
209
#self.logger('Client {0} started checker "{1}"'
210
# .format(self.properties["Name"],
214
#self.logger(u'Client %s started checker "%s"'
215
# % (self.properties[u"Name"], unicode(command)))
214
218
def got_secret(self):
215
self.logger('Client {0} received its secret'
216
.format(self.properties["Name"]))
219
self.last_checker_failed = False
220
self.logger(u'Client %s received its secret'
221
% self.properties[u"Name"])
218
223
def need_approval(self, timeout, default):
220
message = 'Client {0} needs approval within {1} seconds'
225
message = u'Client %s needs approval within %s seconds'
222
message = 'Client {0} will get its secret in {1} seconds'
223
self.logger(message.format(self.properties["Name"],
227
message = u'Client %s will get its secret in %s seconds'
229
% (self.properties[u"Name"], timeout/1000))
230
self.using_timer(True)
226
232
def rejected(self, reason):
227
self.logger('Client {0} was rejected; reason: {1}'
228
.format(self.properties["Name"], reason))
233
self.logger(u'Client %s was rejected; reason: %s'
234
% (self.properties[u"Name"], reason))
230
236
def selectable(self):
231
237
"""Make this a "selectable" widget.
232
238
This overrides the method from urwid.FlowWidget."""
235
def rows(self, maxcolrow, focus=False):
241
def rows(self, (maxcol,), focus=False):
236
242
"""How many rows this widget will occupy might depend on
237
243
whether we have focus or not.
238
244
This overrides the method from urwid.FlowWidget"""
239
return self.current_widget(focus).rows(maxcolrow, focus=focus)
245
return self.current_widget(focus).rows((maxcol,), focus=focus)
241
247
def current_widget(self, focus=False):
242
248
if focus or self.opened:
246
252
def update(self):
247
253
"Called when what is visible on the screen should be updated."
248
254
# How to add standout mode to a style
249
with_standout = { "normal": "standout",
250
"bold": "bold-standout",
252
"underline-blink-standout",
253
"bold-underline-blink":
254
"bold-underline-blink-standout",
255
with_standout = { u"normal": u"standout",
256
u"bold": u"bold-standout",
258
u"underline-blink-standout",
259
u"bold-underline-blink":
260
u"bold-underline-blink-standout",
257
263
# Rebuild focus and non-focus widgets using current properties
259
265
# Base part of a client. Name!
260
base = '{name}: '.format(name=self.properties["Name"])
261
if not self.properties["Enabled"]:
263
self.using_timer(False)
264
elif self.properties["ApprovalPending"]:
266
base = (u'%(name)s: '
267
% {u"name": self.properties[u"Name"]})
268
if not self.properties[u"Enabled"]:
269
message = u"DISABLED"
270
elif self.properties[u"ApprovalPending"]:
265
271
timeout = datetime.timedelta(milliseconds
266
272
= self.properties
268
274
last_approval_request = isoformat_to_datetime(
269
self.properties["LastApprovalRequest"])
275
self.properties[u"LastApprovalRequest"])
270
276
if last_approval_request is not None:
271
timer = max(timeout - (datetime.datetime.utcnow()
272
- last_approval_request),
273
datetime.timedelta())
277
timer = timeout - (datetime.datetime.utcnow()
278
- last_approval_request)
275
280
timer = datetime.timedelta()
276
if self.properties["ApprovedByDefault"]:
277
message = "Approval in {0}. (d)eny?"
279
message = "Denial in {0}. (a)pprove?"
280
message = message.format(str(timer).rsplit(".", 1)[0])
281
self.using_timer(True)
282
elif self.properties["LastCheckerStatus"] != 0:
283
# When checker has failed, show timer until client expires
284
expires = self.properties["Expires"]
286
timer = datetime.timedelta(0)
288
expires = (datetime.datetime.strptime
289
(expires, '%Y-%m-%dT%H:%M:%S.%f'))
290
timer = max(expires - datetime.datetime.utcnow(),
291
datetime.timedelta())
292
message = ('A checker has failed! Time until client'
293
' gets disabled: {0}'
294
.format(str(timer).rsplit(".", 1)[0]))
295
self.using_timer(True)
281
if self.properties[u"ApprovedByDefault"]:
282
message = u"Approval in %s. (d)eny?"
284
message = u"Denial in %s. (a)pprove?"
285
message = message % unicode(timer).rsplit(".", 1)[0]
286
elif self.last_checker_failed:
287
timeout = datetime.timedelta(milliseconds
290
last_ok = isoformat_to_datetime(
291
max((self.properties[u"LastCheckedOK"]
292
or self.properties[u"Created"]),
293
self.properties[u"LastEnabled"]))
294
timer = timeout - (datetime.datetime.utcnow() - last_ok)
295
message = (u'A checker has failed! Time until client'
296
u' gets disabled: %s'
297
% unicode(timer).rsplit(".", 1)[0])
298
self.using_timer(False)
299
self._text = "{0}{1}".format(base, message)
300
self._text = "%s%s" % (base, message)
301
302
if not urwid.supports_unicode():
302
303
self._text = self._text.encode("ascii", "replace")
303
textlist = [("normal", self._text)]
304
textlist = [(u"normal", self._text)]
304
305
self._text_widget.set_text(textlist)
305
306
self._focus_text_widget.set_text([(with_standout[text[0]],
315
316
self.update_hook()
317
318
def update_timer(self):
318
"""called by gobject. Will indefinitely loop until
319
gobject.source_remove() on tag is called"""
321
321
return True # Keep calling this
323
def delete(self, **kwargs):
324
324
if self._update_timer_callback_tag is not None:
325
325
gobject.source_remove(self._update_timer_callback_tag)
326
326
self._update_timer_callback_tag = None
327
for match in self.match_objects:
329
self.match_objects = ()
330
327
if self.delete_hook is not None:
331
328
self.delete_hook(self)
332
return super(MandosClientWidget, self).delete(**kwargs)
334
def render(self, maxcolrow, focus=False):
330
def render(self, (maxcol,), focus=False):
335
331
"""Render differently if we have focus.
336
332
This overrides the method from urwid.FlowWidget"""
337
return self.current_widget(focus).render(maxcolrow,
333
return self.current_widget(focus).render((maxcol,),
340
def keypress(self, maxcolrow, key):
336
def keypress(self, (maxcol,), key):
342
338
This overrides the method from urwid.FlowWidget"""
344
self.proxy.Enable(dbus_interface = client_interface,
347
self.proxy.Disable(dbus_interface = client_interface,
340
self.proxy.Enable(dbus_interface = client_interface)
342
self.proxy.Disable(dbus_interface = client_interface)
350
344
self.proxy.Approve(dbus.Boolean(True, variant_level=1),
351
dbus_interface = client_interface,
345
dbus_interface = client_interface)
354
347
self.proxy.Approve(dbus.Boolean(False, variant_level=1),
355
dbus_interface = client_interface,
357
elif key == "R" or key == "_" or key == "ctrl k":
348
dbus_interface = client_interface)
349
elif key == u"r" or key == u"_" or key == u"ctrl k":
358
350
self.server_proxy_object.RemoveClient(self.proxy
362
self.proxy.StartChecker(dbus_interface = client_interface,
365
self.proxy.StopChecker(dbus_interface = client_interface,
368
self.proxy.CheckedOK(dbus_interface = client_interface,
353
self.proxy.StartChecker(dbus_interface = client_interface)
355
self.proxy.StopChecker(dbus_interface = client_interface)
357
self.proxy.CheckedOK(dbus_interface = client_interface)
371
# elif key == "p" or key == "=":
359
# elif key == u"p" or key == "=":
372
360
# self.proxy.pause()
373
# elif key == "u" or key == ":":
361
# elif key == u"u" or key == ":":
374
362
# self.proxy.unpause()
363
# elif key == u"RET":
380
def property_changed(self, property=None, **kwargs):
368
def property_changed(self, property=None, value=None,
381
370
"""Call self.update() if old value is not new value.
382
371
This overrides the method from MandosClientPropertyCache"""
383
property_name = str(property)
372
property_name = unicode(property)
384
373
old_value = self.properties.get(property_name)
385
374
super(MandosClientWidget, self).property_changed(
386
property=property, **kwargs)
375
property=property, value=value, *args, **kwargs)
387
376
if self.properties.get(property_name) != old_value:
410
400
self.screen = urwid.curses_display.Screen()
412
402
self.screen.register_palette((
414
"default", "default", None),
416
"bold", "default", "bold"),
418
"underline,blink", "default", "underline,blink"),
420
"standout", "default", "standout"),
421
("bold-underline-blink",
422
"bold,underline,blink", "default", "bold,underline,blink"),
424
"bold,standout", "default", "bold,standout"),
425
("underline-blink-standout",
426
"underline,blink,standout", "default",
427
"underline,blink,standout"),
428
("bold-underline-blink-standout",
429
"bold,underline,blink,standout", "default",
430
"bold,underline,blink,standout"),
404
u"default", u"default", None),
406
u"default", u"default", u"bold"),
408
u"default", u"default", u"underline"),
410
u"default", u"default", u"standout"),
411
(u"bold-underline-blink",
412
u"default", u"default", (u"bold", u"underline")),
414
u"default", u"default", (u"bold", u"standout")),
415
(u"underline-blink-standout",
416
u"default", u"default", (u"underline", u"standout")),
417
(u"bold-underline-blink-standout",
418
u"default", u"default", (u"bold", u"underline",
433
422
if urwid.supports_unicode():
434
self.divider = "─" # \u2500
435
#self.divider = "━" # \u2501
423
self.divider = u"─" # \u2500
424
#self.divider = u"━" # \u2501
437
#self.divider = "-" # \u002d
438
self.divider = "_" # \u005f
426
#self.divider = u"-" # \u002d
427
self.divider = u"_" # \u005f
440
429
self.screen.start()
455
444
# This keeps track of whether self.uilist currently has
456
445
# self.logbox in it or not
457
446
self.log_visible = True
458
self.log_wrap = "any"
447
self.log_wrap = u"any"
461
self.log_message_raw(("bold",
462
"Mandos Monitor version " + version))
463
self.log_message_raw(("bold",
450
self.log_message_raw((u"bold",
451
u"Mandos Monitor version " + version))
452
self.log_message_raw((u"bold",
466
455
self.busname = domain + '.Mandos'
467
456
self.main_loop = gobject.MainLoop()
457
self.bus = dbus.SystemBus()
458
mandos_dbus_objc = self.bus.get_object(
459
self.busname, u"/", follow_name_owner_changes=True)
460
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
464
mandos_clients = (self.mandos_serv
465
.GetAllClientsWithProperties())
466
except dbus.exceptions.DBusException:
467
mandos_clients = dbus.Dictionary()
470
.connect_to_signal(u"ClientRemoved",
471
self.find_and_remove_client,
472
dbus_interface=server_interface,
475
.connect_to_signal(u"ClientAdded",
477
dbus_interface=server_interface,
480
.connect_to_signal(u"ClientNotFound",
481
self.client_not_found,
482
dbus_interface=server_interface,
484
for path, client in mandos_clients.iteritems():
485
client_proxy_object = self.bus.get_object(self.busname,
487
self.add_client(MandosClientWidget(server_proxy_object
490
=client_proxy_object,
469
500
def client_not_found(self, fingerprint, address):
470
self.log_message("Client with address {0} and fingerprint"
471
" {1} could not be found"
472
.format(address, fingerprint))
501
self.log_message((u"Client with address %s and fingerprint %s"
502
u" could not be found" % (address,
474
505
def rebuild(self):
475
506
"""This rebuilds the User Interface.
499
530
and len(self.log) > self.max_log_length):
500
531
del self.log[0:len(self.log)-self.max_log_length-1]
501
532
self.logbox.set_focus(len(self.logbox.body.contents),
533
coming_from=u"above")
505
536
def toggle_log_display(self):
506
537
"""Toggle visibility of the log buffer."""
507
538
self.log_visible = not self.log_visible
509
#self.log_message("Log visibility changed to: "
510
# + str(self.log_visible))
540
#self.log_message(u"Log visibility changed to: "
541
# + unicode(self.log_visible))
512
543
def change_log_display(self):
513
544
"""Change type of log display.
514
545
Currently, this toggles wrapping of text lines."""
515
if self.log_wrap == "clip":
516
self.log_wrap = "any"
546
if self.log_wrap == u"clip":
547
self.log_wrap = u"any"
518
self.log_wrap = "clip"
549
self.log_wrap = u"clip"
519
550
for textwidget in self.log:
520
551
textwidget.set_wrap_mode(self.log_wrap)
521
#self.log_message("Wrap mode: " + self.log_wrap)
552
#self.log_message(u"Wrap mode: " + self.log_wrap)
523
554
def find_and_remove_client(self, path, name):
524
"""Find a client by its object path and remove it.
555
"""Find an client from its object path and remove it.
526
557
This is connected to the ClientRemoved signal from the
527
558
Mandos server object."""
572
606
"""Start the main loop and exit when it's done."""
573
self.bus = dbus.SystemBus()
574
mandos_dbus_objc = self.bus.get_object(
575
self.busname, "/", follow_name_owner_changes=True)
576
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
580
mandos_clients = (self.mandos_serv
581
.GetAllClientsWithProperties())
582
if not mandos_clients:
583
self.log_message_raw(("bold", "Note: Server has no clients."))
584
except dbus.exceptions.DBusException:
585
self.log_message_raw(("bold", "Note: No Mandos server running."))
586
mandos_clients = dbus.Dictionary()
589
.connect_to_signal("ClientRemoved",
590
self.find_and_remove_client,
591
dbus_interface=server_interface,
594
.connect_to_signal("ClientAdded",
596
dbus_interface=server_interface,
599
.connect_to_signal("ClientNotFound",
600
self.client_not_found,
601
dbus_interface=server_interface,
603
for path, client in mandos_clients.items():
604
client_proxy_object = self.bus.get_object(self.busname,
606
self.add_client(MandosClientWidget(server_proxy_object
609
=client_proxy_object,
620
608
self._input_callback_tag = (gobject.io_add_watch
621
609
(sys.stdin.fileno(),
647
635
except KeyError: # :-)
650
if key == "q" or key == "Q":
638
if key == u"q" or key == u"Q":
653
elif key == "window resize":
641
elif key == u"window resize":
654
642
self.size = self.screen.get_cols_rows()
656
elif key == "\f": # Ctrl-L
644
elif key == u"\f": # Ctrl-L
658
elif key == "l" or key == "D":
646
elif key == u"l" or key == u"D":
659
647
self.toggle_log_display()
661
elif key == "w" or key == "i":
649
elif key == u"w" or key == u"i":
662
650
self.change_log_display()
664
elif key == "?" or key == "f1" or key == "esc":
652
elif key == u"?" or key == u"f1" or key == u"esc":
665
653
if not self.log_visible:
666
654
self.log_visible = True
668
self.log_message_raw(("bold",
672
"l: Log window toggle",
673
"TAB: Switch window",
675
self.log_message_raw(("bold",
681
"s: Start new checker",
656
self.log_message_raw((u"bold",
660
u"l: Log window toggle",
661
u"TAB: Switch window",
663
self.log_message_raw((u"bold",
669
u"s: Start new checker",
688
676
if self.topwidget.get_focus() is self.logbox:
689
677
self.topwidget.set_focus(0)
691
679
self.topwidget.set_focus(self.logbox)
693
#elif (key == "end" or key == "meta >" or key == "G"
681
#elif (key == u"end" or key == u"meta >" or key == u"G"
695
683
# pass # xxx end-of-buffer
696
#elif (key == "home" or key == "meta <" or key == "g"
684
#elif (key == u"home" or key == u"meta <" or key == u"g"
698
686
# pass # xxx beginning-of-buffer
699
#elif key == "ctrl e" or key == "$":
687
#elif key == u"ctrl e" or key == u"$":
700
688
# pass # xxx move-end-of-line
701
#elif key == "ctrl a" or key == "^":
689
#elif key == u"ctrl a" or key == u"^":
702
690
# pass # xxx move-beginning-of-line
703
#elif key == "ctrl b" or key == "meta (" or key == "h":
691
#elif key == u"ctrl b" or key == u"meta (" or key == u"h":
704
692
# pass # xxx left
705
#elif key == "ctrl f" or key == "meta )" or key == "l":
693
#elif key == u"ctrl f" or key == u"meta )" or key == u"l":
706
694
# pass # xxx right
708
696
# pass # scroll up log
710
698
# pass # scroll down log
711
699
elif self.topwidget.selectable():
712
700
self.topwidget.keypress(self.size, key)