77
int(second), # Whole seconds
78
int(fraction*1000000)) # Microseconds
82
int(second), # Whole seconds
83
int(fraction*1000000)) # Microseconds
80
86
class MandosClientPropertyCache(object):
81
87
"""This wraps a Mandos Client D-Bus proxy object, caches the
82
88
properties and calls a hook function when any of them are
85
def __init__(self, proxy_object=None, *args, **kwargs):
86
self.proxy = proxy_object # Mandos Client proxy object
88
self.properties = dict()
89
self.proxy.connect_to_signal("PropertyChanged",
90
self.property_changed,
94
self.properties.update(
95
self.proxy.GetAll(client_interface,
96
dbus_interface = dbus.PROPERTIES_IFACE))
98
#XXX This break good super behaviour!
99
# super(MandosClientPropertyCache, self).__init__(
102
def property_changed(self, property=None, value=None):
103
"""This is called whenever we get a PropertyChanged signal
104
It updates the changed property in the "properties" dict.
91
def __init__(self, proxy_object=None, properties=None, **kwargs):
92
self.proxy = proxy_object # Mandos Client proxy object
93
self.properties = dict() if properties is None else properties
94
self.property_changed_match = (
95
self.proxy.connect_to_signal("PropertiesChanged",
96
self.properties_changed,
97
dbus.PROPERTIES_IFACE,
100
if properties is None:
101
self.properties.update(self.proxy.GetAll(
103
dbus_interface=dbus.PROPERTIES_IFACE))
105
super(MandosClientPropertyCache, self).__init__(**kwargs)
107
def properties_changed(self, interface, properties, invalidated):
108
"""This is called whenever we get a PropertiesChanged signal
109
It updates the changed properties in the "properties" dict.
106
111
# Update properties dict with new value
107
self.properties[property] = value
112
if interface == client_interface:
113
self.properties.update(properties)
116
self.property_changed_match.remove()
110
119
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
111
120
"""A Mandos Client which is visible on the screen.
114
123
def __init__(self, server_proxy_object=None, update_hook=None,
115
delete_hook=None, logger=None, *args, **kwargs):
124
delete_hook=None, logger=None, **kwargs):
116
125
# Called on update
117
126
self.update_hook = update_hook
118
127
# Called on delete
121
130
self.server_proxy_object = server_proxy_object
123
132
self.logger = logger
125
134
self._update_timer_callback_tag = None
126
self._update_timer_callback_lock = 0
127
self.last_checker_failed = False
129
136
# The widget shown normally
130
137
self._text_widget = urwid.Text("")
131
138
# The widget shown when we have focus
132
139
self._focus_text_widget = urwid.Text("")
133
super(MandosClientWidget, self).__init__(
134
update_hook=update_hook, delete_hook=delete_hook,
140
super(MandosClientWidget, self).__init__(**kwargs)
137
142
self.opened = False
139
last_checked_ok = isoformat_to_datetime(self.properties
141
if last_checked_ok is None:
142
self.last_checker_failed = True
144
self.last_checker_failed = ((datetime.datetime.utcnow()
151
if self.last_checker_failed:
152
self.using_timer(True)
154
if self.need_approval:
155
self.using_timer(True)
157
self.proxy.connect_to_signal("CheckerCompleted",
158
self.checker_completed,
161
self.proxy.connect_to_signal("CheckerStarted",
162
self.checker_started,
165
self.proxy.connect_to_signal("GotSecret",
169
self.proxy.connect_to_signal("NeedApproval",
173
self.proxy.connect_to_signal("Rejected",
178
def property_changed(self, property=None, value=None):
179
super(self, MandosClientWidget).property_changed(property,
181
if property == "ApprovalPending":
182
using_timer(bool(value))
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 {}'
166
.format(self.properties["Name"]), level=0)
184
168
def using_timer(self, flag):
185
169
"""Call this method with True or False when timer should be
186
170
activated or deactivated.
188
old = self._update_timer_callback_lock
190
self._update_timer_callback_lock += 1
192
self._update_timer_callback_lock -= 1
193
if old == 0 and self._update_timer_callback_lock:
194
self._update_timer_callback_tag = (gobject.timeout_add
172
if flag and self._update_timer_callback_tag is None:
173
# Will update the shown timer value every second
174
self._update_timer_callback_tag = (GLib.timeout_add
196
176
self.update_timer))
197
elif old and self._update_timer_callback_lock == 0:
198
gobject.source_remove(self._update_timer_callback_tag)
177
elif not (flag or self._update_timer_callback_tag is None):
178
GLib.source_remove(self._update_timer_callback_tag)
199
179
self._update_timer_callback_tag = None
201
181
def checker_completed(self, exitstatus, condition, command):
202
182
if exitstatus == 0:
203
if self.last_checker_failed:
204
self.last_checker_failed = False
205
self.using_timer(False)
206
#self.logger('Checker for client %s (command "%s")'
208
# % (self.properties["Name"], command))
183
self.logger('Checker for client {} (command "{}")'
184
' succeeded'.format(self.properties["Name"],
212
if not self.last_checker_failed:
213
self.last_checker_failed = True
214
self.using_timer(True)
215
189
if os.WIFEXITED(condition):
216
self.logger('Checker for client %s (command "%s")'
217
' failed with exit code %s'
218
% (self.properties["Name"], command,
219
os.WEXITSTATUS(condition)))
190
self.logger('Checker for client {} (command "{}") failed'
192
.format(self.properties["Name"], command,
193
os.WEXITSTATUS(condition)))
220
194
elif os.WIFSIGNALED(condition):
221
self.logger('Checker for client %s (command "%s")'
222
' was killed by signal %s'
223
% (self.properties["Name"], command,
224
os.WTERMSIG(condition)))
225
elif os.WCOREDUMP(condition):
226
self.logger('Checker for client %s (command "%s")'
228
% (self.properties["Name"], command))
230
self.logger('Checker for client %s completed'
195
self.logger('Checker for client {} (command "{}") was'
196
' killed by signal {}'
197
.format(self.properties["Name"], command,
198
os.WTERMSIG(condition)))
234
201
def checker_started(self, command):
235
#self.logger('Client %s started checker "%s"'
236
# % (self.properties["Name"], unicode(command)))
202
"""Server signals that a checker started."""
203
self.logger('Client {} started checker "{}"'
204
.format(self.properties["Name"],
239
207
def got_secret(self):
240
self.last_checker_failed = False
241
self.logger('Client %s received its secret'
242
% self.properties["Name"])
208
self.logger('Client {} received its secret'
209
.format(self.properties["Name"]))
244
211
def need_approval(self, timeout, default):
246
message = 'Client %s needs approval within %s seconds'
213
message = 'Client {} needs approval within {} seconds'
248
message = 'Client %s will get its secret in %s seconds'
250
% (self.properties["Name"], timeout/1000))
251
self.using_timer(True)
215
message = 'Client {} will get its secret in {} seconds'
216
self.logger(message.format(self.properties["Name"],
253
219
def rejected(self, reason):
254
self.logger('Client %s was rejected; reason: %s'
255
% (self.properties["Name"], reason))
220
self.logger('Client {} was rejected; reason: {}'
221
.format(self.properties["Name"], reason))
257
223
def selectable(self):
258
224
"""Make this a "selectable" widget.
259
225
This overrides the method from urwid.FlowWidget."""
262
228
def rows(self, maxcolrow, focus=False):
263
229
"""How many rows this widget will occupy might depend on
264
230
whether we have focus or not.
265
231
This overrides the method from urwid.FlowWidget"""
266
232
return self.current_widget(focus).rows(maxcolrow, focus=focus)
268
234
def current_widget(self, focus=False):
269
235
if focus or self.opened:
270
236
return self._focus_widget
271
237
return self._widget
273
239
def update(self):
274
240
"Called when what is visible on the screen should be updated."
275
241
# How to add standout mode to a style
276
with_standout = { "normal": "standout",
277
"bold": "bold-standout",
279
"underline-blink-standout",
280
"bold-underline-blink":
281
"bold-underline-blink-standout",
242
with_standout = {"normal": "standout",
243
"bold": "bold-standout",
245
"underline-blink-standout",
246
"bold-underline-blink":
247
"bold-underline-blink-standout",
284
250
# Rebuild focus and non-focus widgets using current properties
286
252
# Base part of a client. Name!
288
% {"name": self.properties["Name"]})
253
base = '{name}: '.format(name=self.properties["Name"])
289
254
if not self.properties["Enabled"]:
290
255
message = "DISABLED"
256
self.using_timer(False)
291
257
elif self.properties["ApprovalPending"]:
292
timeout = datetime.timedelta(milliseconds
258
timeout = datetime.timedelta(
259
milliseconds=self.properties["ApprovalDelay"])
295
260
last_approval_request = isoformat_to_datetime(
296
261
self.properties["LastApprovalRequest"])
297
262
if last_approval_request is not None:
298
timer = timeout - (datetime.datetime.utcnow()
299
- last_approval_request)
263
timer = max(timeout - (datetime.datetime.utcnow()
264
- last_approval_request),
265
datetime.timedelta())
301
267
timer = datetime.timedelta()
302
268
if self.properties["ApprovedByDefault"]:
303
message = "Approval in %s. (d)eny?"
305
message = "Denial in %s. (a)pprove?"
306
message = message % unicode(timer).rsplit(".", 1)[0]
307
elif self.last_checker_failed:
308
timeout = datetime.timedelta(milliseconds
311
last_ok = isoformat_to_datetime(
312
max((self.properties["LastCheckedOK"]
313
or self.properties["Created"]),
314
self.properties["LastEnabled"]))
315
timer = timeout - (datetime.datetime.utcnow() - last_ok)
269
message = "Approval in {}. (d)eny?"
271
message = "Denial in {}. (a)pprove?"
272
message = message.format(str(timer).rsplit(".", 1)[0])
273
self.using_timer(True)
274
elif self.properties["LastCheckerStatus"] != 0:
275
# When checker has failed, show timer until client expires
276
expires = self.properties["Expires"]
278
timer = datetime.timedelta(0)
280
expires = (datetime.datetime.strptime
281
(expires, '%Y-%m-%dT%H:%M:%S.%f'))
282
timer = max(expires - datetime.datetime.utcnow(),
283
datetime.timedelta())
316
284
message = ('A checker has failed! Time until client'
318
% unicode(timer).rsplit(".", 1)[0])
286
.format(str(timer).rsplit(".", 1)[0]))
287
self.using_timer(True)
320
289
message = "enabled"
321
self._text = "%s%s" % (base, message)
290
self.using_timer(False)
291
self._text = "{}{}".format(base, message)
323
293
if not urwid.supports_unicode():
324
294
self._text = self._text.encode("ascii", "replace")
325
295
textlist = [("normal", self._text)]
335
305
# Run update hook, if any
336
306
if self.update_hook is not None:
337
307
self.update_hook()
339
309
def update_timer(self):
310
"""called by GLib. Will indefinitely loop until
311
GLib.source_remove() on tag is called
342
314
return True # Keep calling this
316
def delete(self, **kwargs):
345
317
if self._update_timer_callback_tag is not None:
346
gobject.source_remove(self._update_timer_callback_tag)
318
GLib.source_remove(self._update_timer_callback_tag)
347
319
self._update_timer_callback_tag = None
320
for match in self.match_objects:
322
self.match_objects = ()
348
323
if self.delete_hook is not None:
349
324
self.delete_hook(self)
325
return super(MandosClientWidget, self).delete(**kwargs)
351
327
def render(self, maxcolrow, focus=False):
352
328
"""Render differently if we have focus.
353
329
This overrides the method from urwid.FlowWidget"""
354
330
return self.current_widget(focus).render(maxcolrow,
357
333
def keypress(self, maxcolrow, key):
359
335
This overrides the method from urwid.FlowWidget"""
361
self.proxy.Enable(dbus_interface = client_interface,
337
self.proxy.Set(client_interface, "Enabled",
338
dbus.Boolean(True), ignore_reply=True,
339
dbus_interface=dbus.PROPERTIES_IFACE)
364
self.proxy.Disable(dbus_interface = client_interface,
341
self.proxy.Set(client_interface, "Enabled", False,
343
dbus_interface=dbus.PROPERTIES_IFACE)
367
345
self.proxy.Approve(dbus.Boolean(True, variant_level=1),
368
dbus_interface = client_interface,
346
dbus_interface=client_interface,
369
347
ignore_reply=True)
371
349
self.proxy.Approve(dbus.Boolean(False, variant_level=1),
372
dbus_interface = client_interface,
350
dbus_interface=client_interface,
373
351
ignore_reply=True)
374
352
elif key == "R" or key == "_" or key == "ctrl k":
375
353
self.server_proxy_object.RemoveClient(self.proxy
377
355
ignore_reply=True)
379
self.proxy.StartChecker(dbus_interface = client_interface,
357
self.proxy.Set(client_interface, "CheckerRunning",
358
dbus.Boolean(True), ignore_reply=True,
359
dbus_interface=dbus.PROPERTIES_IFACE)
382
self.proxy.StopChecker(dbus_interface = client_interface,
361
self.proxy.Set(client_interface, "CheckerRunning",
362
dbus.Boolean(False), ignore_reply=True,
363
dbus_interface=dbus.PROPERTIES_IFACE)
385
self.proxy.CheckedOK(dbus_interface = client_interface,
365
self.proxy.CheckedOK(dbus_interface=client_interface,
386
366
ignore_reply=True)
388
368
# elif key == "p" or key == "=":
422
403
"""This is the entire user interface - the whole screen
423
404
with boxes, lists of client widgets, etc.
425
def __init__(self, max_log_length=1000):
406
def __init__(self, max_log_length=1000, log_level=1):
426
407
DBusGMainLoop(set_as_default=True)
428
409
self.screen = urwid.curses_display.Screen()
430
411
self.screen.register_palette((
432
413
"default", "default", None),
434
"default", "default", "bold"),
415
"bold", "default", "bold"),
435
416
("underline-blink",
436
"default", "default", "underline"),
417
"underline,blink", "default", "underline,blink"),
438
"default", "default", "standout"),
419
"standout", "default", "standout"),
439
420
("bold-underline-blink",
440
"default", "default", ("bold", "underline")),
421
"bold,underline,blink", "default",
422
"bold,underline,blink"),
441
423
("bold-standout",
442
"default", "default", ("bold", "standout")),
424
"bold,standout", "default", "bold,standout"),
443
425
("underline-blink-standout",
444
"default", "default", ("underline", "standout")),
426
"underline,blink,standout", "default",
427
"underline,blink,standout"),
445
428
("bold-underline-blink-standout",
446
"default", "default", ("bold", "underline",
429
"bold,underline,blink,standout", "default",
430
"bold,underline,blink,standout"),
450
433
if urwid.supports_unicode():
451
self.divider = "─" # \u2500
452
#self.divider = "━" # \u2501
434
self.divider = "─" # \u2500
454
#self.divider = "-" # \u002d
455
self.divider = "_" # \u005f
436
self.divider = "_" # \u005f
457
438
self.screen.start()
459
440
self.size = self.screen.get_cols_rows()
461
442
self.clients = urwid.SimpleListWalker([])
462
443
self.clients_dict = {}
464
445
# We will add Text widgets to this list
466
447
self.max_log_length = max_log_length
449
self.log_level = log_level
468
451
# We keep a reference to the log widget so we can remove it
469
452
# from the ListWalker without it getting destroyed
470
453
self.logbox = ConstrainedListBox(self.log)
472
455
# This keeps track of whether self.uilist currently has
473
456
# self.logbox in it or not
474
457
self.log_visible = True
475
458
self.log_wrap = "any"
478
461
self.log_message_raw(("bold",
479
462
"Mandos Monitor version " + version))
480
463
self.log_message_raw(("bold",
481
464
"q: Quit ?: Help"))
483
466
self.busname = domain + '.Mandos'
484
self.main_loop = gobject.MainLoop()
485
self.bus = dbus.SystemBus()
486
mandos_dbus_objc = self.bus.get_object(
487
self.busname, "/", follow_name_owner_changes=True)
488
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
492
mandos_clients = (self.mandos_serv
493
.GetAllClientsWithProperties())
494
except dbus.exceptions.DBusException:
495
mandos_clients = dbus.Dictionary()
498
.connect_to_signal("ClientRemoved",
499
self.find_and_remove_client,
500
dbus_interface=server_interface,
503
.connect_to_signal("ClientAdded",
505
dbus_interface=server_interface,
508
.connect_to_signal("ClientNotFound",
509
self.client_not_found,
510
dbus_interface=server_interface,
512
for path, client in mandos_clients.iteritems():
513
client_proxy_object = self.bus.get_object(self.busname,
515
self.add_client(MandosClientWidget(server_proxy_object
518
=client_proxy_object,
467
self.main_loop = GLib.MainLoop()
528
469
def client_not_found(self, fingerprint, address):
529
self.log_message(("Client with address %s and fingerprint %s"
530
" could not be found" % (address,
470
self.log_message("Client with address {} and fingerprint {}"
471
" could not be found"
472
.format(address, fingerprint))
533
474
def rebuild(self):
534
475
"""This rebuilds the User Interface.
535
476
Call this when the widget layout needs to change"""
537
#self.uilist.append(urwid.ListBox(self.clients))
478
# self.uilist.append(urwid.ListBox(self.clients))
538
479
self.uilist.append(urwid.Frame(ConstrainedListBox(self.
540
#header=urwid.Divider(),
481
# header=urwid.Divider(),
543
urwid.Divider(div_char=
483
footer=urwid.Divider(
484
div_char=self.divider)))
545
485
if self.log_visible:
546
486
self.uilist.append(self.logbox)
548
487
self.topwidget = urwid.Pile(self.uilist)
550
def log_message(self, message):
489
def log_message(self, message, level=1):
490
"""Log message formatted with timestamp"""
491
if level < self.log_level:
551
493
timestamp = datetime.datetime.now().isoformat()
552
self.log_message_raw(timestamp + ": " + message)
554
def log_message_raw(self, markup):
494
self.log_message_raw("{}: {}".format(timestamp, message),
497
def log_message_raw(self, markup, level=1):
555
498
"""Add a log message to the log buffer."""
499
if level < self.log_level:
556
501
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
557
if (self.max_log_length
558
and len(self.log) > self.max_log_length):
559
del self.log[0:len(self.log)-self.max_log_length-1]
502
if self.max_log_length:
503
if len(self.log) > self.max_log_length:
504
del self.log[0:len(self.log)-self.max_log_length-1]
560
505
self.logbox.set_focus(len(self.logbox.body.contents),
561
506
coming_from="above")
564
509
def toggle_log_display(self):
565
510
"""Toggle visibility of the log buffer."""
566
511
self.log_visible = not self.log_visible
568
#self.log_message("Log visibility changed to: "
569
# + unicode(self.log_visible))
513
self.log_message("Log visibility changed to: {}"
514
.format(self.log_visible), level=0)
571
516
def change_log_display(self):
572
517
"""Change type of log display.
573
518
Currently, this toggles wrapping of text lines."""
577
522
self.log_wrap = "clip"
578
523
for textwidget in self.log:
579
524
textwidget.set_wrap_mode(self.log_wrap)
580
#self.log_message("Wrap mode: " + self.log_wrap)
582
def find_and_remove_client(self, path, name):
583
"""Find an client from its object path and remove it.
585
This is connected to the ClientRemoved signal from the
525
self.log_message("Wrap mode: {}".format(self.log_wrap),
528
def find_and_remove_client(self, path, interfaces):
529
"""Find a client by its object path and remove it.
531
This is connected to the InterfacesRemoved signal from the
586
532
Mandos server object."""
533
if client_interface not in interfaces:
534
# Not a Mandos client object; ignore
588
537
client = self.clients_dict[path]
592
self.remove_client(client, path)
594
def add_new_client(self, path):
540
self.log_message("Unknown client {!r} removed"
545
def add_new_client(self, path, ifs_and_props):
546
"""Find a client by its object path and remove it.
548
This is connected to the InterfacesAdded signal from the
549
Mandos server object.
551
if client_interface not in ifs_and_props:
552
# Not a Mandos client object; ignore
595
554
client_proxy_object = self.bus.get_object(self.busname, path)
596
self.add_client(MandosClientWidget(server_proxy_object
599
=client_proxy_object,
555
self.add_client(MandosClientWidget(
556
server_proxy_object=self.mandos_serv,
557
proxy_object=client_proxy_object,
558
update_hook=self.refresh,
559
delete_hook=self.remove_client,
560
logger=self.log_message,
561
properties=dict(ifs_and_props[client_interface])),
608
564
def add_client(self, client, path=None):
609
565
self.clients.append(client)
611
567
path = client.proxy.object_path
612
568
self.clients_dict[path] = client
613
self.clients.sort(None, lambda c: c.properties["Name"])
569
self.clients.sort(key=lambda c: c.properties["Name"])
616
572
def remove_client(self, client, path=None):
617
573
self.clients.remove(client)
619
575
path = client.proxy.object_path
620
576
del self.clients_dict[path]
621
if not self.clients_dict:
622
# Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
623
# is completely emptied, we need to recreate it.
624
self.clients = urwid.SimpleListWalker([])
628
579
def refresh(self):
629
580
"""Redraw the screen"""
630
581
canvas = self.topwidget.render(self.size, focus=True)
631
582
self.screen.draw_screen(self.size, canvas)
634
585
"""Start the main loop and exit when it's done."""
586
self.bus = dbus.SystemBus()
587
mandos_dbus_objc = self.bus.get_object(
588
self.busname, "/", follow_name_owner_changes=True)
589
self.mandos_serv = dbus.Interface(
590
mandos_dbus_objc, dbus_interface=server_interface)
592
mandos_clients = (self.mandos_serv
593
.GetAllClientsWithProperties())
594
if not mandos_clients:
595
self.log_message_raw(("bold",
596
"Note: Server has no clients."))
597
except dbus.exceptions.DBusException:
598
self.log_message_raw(("bold",
599
"Note: No Mandos server running."))
600
mandos_clients = dbus.Dictionary()
603
.connect_to_signal("InterfacesRemoved",
604
self.find_and_remove_client,
605
dbus_interface=dbus.OBJECT_MANAGER_IFACE,
608
.connect_to_signal("InterfacesAdded",
610
dbus_interface=dbus.OBJECT_MANAGER_IFACE,
613
.connect_to_signal("ClientNotFound",
614
self.client_not_found,
615
dbus_interface=server_interface,
617
for path, client in mandos_clients.items():
618
client_proxy_object = self.bus.get_object(self.busname,
620
self.add_client(MandosClientWidget(
621
server_proxy_object=self.mandos_serv,
622
proxy_object=client_proxy_object,
624
update_hook=self.refresh,
625
delete_hook=self.remove_client,
626
logger=self.log_message),
636
self._input_callback_tag = (gobject.io_add_watch
630
self._input_callback_tag = (GLib.io_add_watch
637
631
(sys.stdin.fileno(),
639
633
self.process_input))
640
634
self.main_loop.run()
641
635
# Main loop has finished, we should close everything now
642
gobject.source_remove(self._input_callback_tag)
636
GLib.source_remove(self._input_callback_tag)
643
637
self.screen.stop()
646
640
self.main_loop.quit()
648
642
def process_input(self, source, condition):
649
643
keys = self.screen.get_input()
650
translations = { "ctrl n": "down", # Emacs
651
"ctrl p": "up", # Emacs
652
"ctrl v": "page down", # Emacs
653
"meta v": "page up", # Emacs
654
" ": "page down", # less
655
"f": "page down", # less
656
"b": "page up", # less
644
translations = {"ctrl n": "down", # Emacs
645
"ctrl p": "up", # Emacs
646
"ctrl v": "page down", # Emacs
647
"meta v": "page up", # Emacs
648
" ": "page down", # less
649
"f": "page down", # less
650
"b": "page up", # less
662
656
key = translations[key]
663
657
except KeyError: # :-)
666
660
if key == "q" or key == "Q":
669
663
elif key == "window resize":
670
664
self.size = self.screen.get_cols_rows()
672
elif key == "\f": # Ctrl-L
666
elif key == "ctrl l":
674
669
elif key == "l" or key == "D":
675
670
self.toggle_log_display()