82
int(second), # Whole seconds
83
int(fraction*1000000)) # Microseconds
77
int(second), # Whole seconds
78
int(fraction*1000000)) # Microseconds
86
80
class MandosClientPropertyCache(object):
87
81
"""This wraps a Mandos Client D-Bus proxy object, caches the
88
82
properties and calls a hook function when any of them are
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.
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.
111
106
# Update properties dict with new value
112
if interface == client_interface:
113
self.properties.update(properties)
116
self.property_changed_match.remove()
107
self.properties[property] = value
119
110
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
120
111
"""A Mandos Client which is visible on the screen.
123
114
def __init__(self, server_proxy_object=None, update_hook=None,
124
delete_hook=None, logger=None, **kwargs):
115
delete_hook=None, logger=None, *args, **kwargs):
125
116
# Called on update
126
117
self.update_hook = update_hook
127
118
# Called on delete
130
121
self.server_proxy_object = server_proxy_object
132
123
self.logger = logger
134
125
self._update_timer_callback_tag = None
126
self._update_timer_callback_lock = 0
127
self.last_checker_failed = False
136
129
# The widget shown normally
137
130
self._text_widget = urwid.Text("")
138
131
# The widget shown when we have focus
139
132
self._focus_text_widget = urwid.Text("")
140
super(MandosClientWidget, self).__init__(**kwargs)
133
super(MandosClientWidget, self).__init__(
134
update_hook=update_hook, delete_hook=delete_hook,
142
137
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 {}'
166
.format(self.properties["Name"]), level=0)
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))
168
184
def using_timer(self, flag):
169
185
"""Call this method with True or False when timer should be
170
186
activated or deactivated.
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
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
176
196
self.update_timer))
177
elif not (flag or self._update_timer_callback_tag is None):
178
GLib.source_remove(self._update_timer_callback_tag)
197
elif old and self._update_timer_callback_lock == 0:
198
gobject.source_remove(self._update_timer_callback_tag)
179
199
self._update_timer_callback_tag = None
181
201
def checker_completed(self, exitstatus, condition, command):
182
202
if exitstatus == 0:
183
self.logger('Checker for client {} (command "{}")'
184
' succeeded'.format(self.properties["Name"],
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))
212
if not self.last_checker_failed:
213
self.last_checker_failed = True
214
self.using_timer(True)
189
215
if os.WIFEXITED(condition):
190
self.logger('Checker for client {} (command "{}") failed'
192
.format(self.properties["Name"], command,
193
os.WEXITSTATUS(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)))
194
220
elif os.WIFSIGNALED(condition):
195
self.logger('Checker for client {} (command "{}") was'
196
' killed by signal {}'
197
.format(self.properties["Name"], command,
198
os.WTERMSIG(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'
201
234
def checker_started(self, command):
202
"""Server signals that a checker started."""
203
self.logger('Client {} started checker "{}"'
204
.format(self.properties["Name"],
235
#self.logger('Client %s started checker "%s"'
236
# % (self.properties["Name"], unicode(command)))
207
239
def got_secret(self):
208
self.logger('Client {} received its secret'
209
.format(self.properties["Name"]))
240
self.last_checker_failed = False
241
self.logger('Client %s received its secret'
242
% self.properties["Name"])
211
244
def need_approval(self, timeout, default):
213
message = 'Client {} needs approval within {} seconds'
246
message = 'Client %s needs approval within %s seconds'
215
message = 'Client {} will get its secret in {} seconds'
216
self.logger(message.format(self.properties["Name"],
248
message = 'Client %s will get its secret in %s seconds'
250
% (self.properties["Name"], timeout/1000))
251
self.using_timer(True)
219
253
def rejected(self, reason):
220
self.logger('Client {} was rejected; reason: {}'
221
.format(self.properties["Name"], reason))
254
self.logger('Client %s was rejected; reason: %s'
255
% (self.properties["Name"], reason))
223
257
def selectable(self):
224
258
"""Make this a "selectable" widget.
225
259
This overrides the method from urwid.FlowWidget."""
228
262
def rows(self, maxcolrow, focus=False):
229
263
"""How many rows this widget will occupy might depend on
230
264
whether we have focus or not.
231
265
This overrides the method from urwid.FlowWidget"""
232
266
return self.current_widget(focus).rows(maxcolrow, focus=focus)
234
268
def current_widget(self, focus=False):
235
269
if focus or self.opened:
236
270
return self._focus_widget
237
271
return self._widget
239
273
def update(self):
240
274
"Called when what is visible on the screen should be updated."
241
275
# How to add standout mode to a style
242
with_standout = {"normal": "standout",
243
"bold": "bold-standout",
245
"underline-blink-standout",
246
"bold-underline-blink":
247
"bold-underline-blink-standout",
276
with_standout = { "normal": "standout",
277
"bold": "bold-standout",
279
"underline-blink-standout",
280
"bold-underline-blink":
281
"bold-underline-blink-standout",
250
284
# Rebuild focus and non-focus widgets using current properties
252
286
# Base part of a client. Name!
253
base = '{name}: '.format(name=self.properties["Name"])
288
% {"name": self.properties["Name"]})
254
289
if not self.properties["Enabled"]:
255
290
message = "DISABLED"
256
self.using_timer(False)
257
291
elif self.properties["ApprovalPending"]:
258
timeout = datetime.timedelta(
259
milliseconds=self.properties["ApprovalDelay"])
292
timeout = datetime.timedelta(milliseconds
260
295
last_approval_request = isoformat_to_datetime(
261
296
self.properties["LastApprovalRequest"])
262
297
if last_approval_request is not None:
263
timer = max(timeout - (datetime.datetime.utcnow()
264
- last_approval_request),
265
datetime.timedelta())
298
timer = timeout - (datetime.datetime.utcnow()
299
- last_approval_request)
267
301
timer = datetime.timedelta()
268
302
if self.properties["ApprovedByDefault"]:
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())
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)
284
316
message = ('A checker has failed! Time until client'
286
.format(str(timer).rsplit(".", 1)[0]))
287
self.using_timer(True)
318
% unicode(timer).rsplit(".", 1)[0])
289
320
message = "enabled"
290
self.using_timer(False)
291
self._text = "{}{}".format(base, message)
321
self._text = "%s%s" % (base, message)
293
323
if not urwid.supports_unicode():
294
324
self._text = self._text.encode("ascii", "replace")
295
325
textlist = [("normal", self._text)]
305
335
# Run update hook, if any
306
336
if self.update_hook is not None:
307
337
self.update_hook()
309
339
def update_timer(self):
310
"""called by GLib. Will indefinitely loop until
311
GLib.source_remove() on tag is called
314
342
return True # Keep calling this
316
def delete(self, **kwargs):
317
345
if self._update_timer_callback_tag is not None:
318
GLib.source_remove(self._update_timer_callback_tag)
346
gobject.source_remove(self._update_timer_callback_tag)
319
347
self._update_timer_callback_tag = None
320
for match in self.match_objects:
322
self.match_objects = ()
323
348
if self.delete_hook is not None:
324
349
self.delete_hook(self)
325
return super(MandosClientWidget, self).delete(**kwargs)
327
351
def render(self, maxcolrow, focus=False):
328
352
"""Render differently if we have focus.
329
353
This overrides the method from urwid.FlowWidget"""
330
354
return self.current_widget(focus).render(maxcolrow,
333
357
def keypress(self, maxcolrow, key):
335
359
This overrides the method from urwid.FlowWidget"""
337
self.proxy.Set(client_interface, "Enabled",
338
dbus.Boolean(True), ignore_reply=True,
339
dbus_interface=dbus.PROPERTIES_IFACE)
361
self.proxy.Enable(dbus_interface = client_interface)
341
self.proxy.Set(client_interface, "Enabled", False,
343
dbus_interface=dbus.PROPERTIES_IFACE)
363
self.proxy.Disable(dbus_interface = client_interface)
345
365
self.proxy.Approve(dbus.Boolean(True, variant_level=1),
346
dbus_interface=client_interface,
366
dbus_interface = client_interface)
349
368
self.proxy.Approve(dbus.Boolean(False, variant_level=1),
350
dbus_interface=client_interface,
369
dbus_interface = client_interface)
352
370
elif key == "R" or key == "_" or key == "ctrl k":
353
371
self.server_proxy_object.RemoveClient(self.proxy
357
self.proxy.Set(client_interface, "CheckerRunning",
358
dbus.Boolean(True), ignore_reply=True,
359
dbus_interface=dbus.PROPERTIES_IFACE)
374
self.proxy.StartChecker(dbus_interface = client_interface)
361
self.proxy.Set(client_interface, "CheckerRunning",
362
dbus.Boolean(False), ignore_reply=True,
363
dbus_interface=dbus.PROPERTIES_IFACE)
376
self.proxy.StopChecker(dbus_interface = client_interface)
365
self.proxy.CheckedOK(dbus_interface=client_interface,
378
self.proxy.CheckedOK(dbus_interface = client_interface)
368
380
# elif key == "p" or key == "=":
369
381
# self.proxy.pause()
403
414
"""This is the entire user interface - the whole screen
404
415
with boxes, lists of client widgets, etc.
406
def __init__(self, max_log_length=1000, log_level=1):
417
def __init__(self, max_log_length=1000):
407
418
DBusGMainLoop(set_as_default=True)
409
420
self.screen = urwid.curses_display.Screen()
411
422
self.screen.register_palette((
413
424
"default", "default", None),
415
"bold", "default", "bold"),
426
"default", "default", "bold"),
416
427
("underline-blink",
417
"underline,blink", "default", "underline,blink"),
428
"default", "default", "underline"),
419
"standout", "default", "standout"),
430
"default", "default", "standout"),
420
431
("bold-underline-blink",
421
"bold,underline,blink", "default",
422
"bold,underline,blink"),
432
"default", "default", ("bold", "underline")),
423
433
("bold-standout",
424
"bold,standout", "default", "bold,standout"),
434
"default", "default", ("bold", "standout")),
425
435
("underline-blink-standout",
426
"underline,blink,standout", "default",
427
"underline,blink,standout"),
436
"default", "default", ("underline", "standout")),
428
437
("bold-underline-blink-standout",
429
"bold,underline,blink,standout", "default",
430
"bold,underline,blink,standout"),
438
"default", "default", ("bold", "underline",
433
442
if urwid.supports_unicode():
434
self.divider = "─" # \u2500
443
self.divider = "─" # \u2500
444
#self.divider = "━" # \u2501
436
self.divider = "_" # \u005f
446
#self.divider = "-" # \u002d
447
self.divider = "_" # \u005f
438
449
self.screen.start()
440
451
self.size = self.screen.get_cols_rows()
442
453
self.clients = urwid.SimpleListWalker([])
443
454
self.clients_dict = {}
445
456
# We will add Text widgets to this list
447
458
self.max_log_length = max_log_length
449
self.log_level = log_level
451
460
# We keep a reference to the log widget so we can remove it
452
461
# from the ListWalker without it getting destroyed
453
462
self.logbox = ConstrainedListBox(self.log)
455
464
# This keeps track of whether self.uilist currently has
456
465
# self.logbox in it or not
457
466
self.log_visible = True
458
467
self.log_wrap = "any"
461
470
self.log_message_raw(("bold",
462
471
"Mandos Monitor version " + version))
463
472
self.log_message_raw(("bold",
464
473
"q: Quit ?: Help"))
466
475
self.busname = domain + '.Mandos'
467
self.main_loop = GLib.MainLoop()
476
self.main_loop = gobject.MainLoop()
477
self.bus = dbus.SystemBus()
478
mandos_dbus_objc = self.bus.get_object(
479
self.busname, "/", follow_name_owner_changes=True)
480
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
484
mandos_clients = (self.mandos_serv
485
.GetAllClientsWithProperties())
486
except dbus.exceptions.DBusException:
487
mandos_clients = dbus.Dictionary()
490
.connect_to_signal("ClientRemoved",
491
self.find_and_remove_client,
492
dbus_interface=server_interface,
495
.connect_to_signal("ClientAdded",
497
dbus_interface=server_interface,
500
.connect_to_signal("ClientNotFound",
501
self.client_not_found,
502
dbus_interface=server_interface,
504
for path, client in mandos_clients.iteritems():
505
client_proxy_object = self.bus.get_object(self.busname,
507
self.add_client(MandosClientWidget(server_proxy_object
510
=client_proxy_object,
469
520
def client_not_found(self, fingerprint, address):
470
self.log_message("Client with address {} and fingerprint {}"
471
" could not be found"
472
.format(address, fingerprint))
521
self.log_message(("Client with address %s and fingerprint %s"
522
" could not be found" % (address,
474
525
def rebuild(self):
475
526
"""This rebuilds the User Interface.
476
527
Call this when the widget layout needs to change"""
478
# self.uilist.append(urwid.ListBox(self.clients))
529
#self.uilist.append(urwid.ListBox(self.clients))
479
530
self.uilist.append(urwid.Frame(ConstrainedListBox(self.
481
# header=urwid.Divider(),
532
#header=urwid.Divider(),
483
footer=urwid.Divider(
484
div_char=self.divider)))
535
urwid.Divider(div_char=
485
537
if self.log_visible:
486
538
self.uilist.append(self.logbox)
487
540
self.topwidget = urwid.Pile(self.uilist)
489
def log_message(self, message, level=1):
490
"""Log message formatted with timestamp"""
491
if level < self.log_level:
542
def log_message(self, message):
493
543
timestamp = datetime.datetime.now().isoformat()
494
self.log_message_raw("{}: {}".format(timestamp, message),
497
def log_message_raw(self, markup, level=1):
544
self.log_message_raw(timestamp + ": " + message)
546
def log_message_raw(self, markup):
498
547
"""Add a log message to the log buffer."""
499
if level < self.log_level:
501
548
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
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]
549
if (self.max_log_length
550
and len(self.log) > self.max_log_length):
551
del self.log[0:len(self.log)-self.max_log_length-1]
505
552
self.logbox.set_focus(len(self.logbox.body.contents),
506
553
coming_from="above")
509
556
def toggle_log_display(self):
510
557
"""Toggle visibility of the log buffer."""
511
558
self.log_visible = not self.log_visible
513
self.log_message("Log visibility changed to: {}"
514
.format(self.log_visible), level=0)
560
#self.log_message("Log visibility changed to: "
561
# + unicode(self.log_visible))
516
563
def change_log_display(self):
517
564
"""Change type of log display.
518
565
Currently, this toggles wrapping of text lines."""
522
569
self.log_wrap = "clip"
523
570
for textwidget in self.log:
524
571
textwidget.set_wrap_mode(self.log_wrap)
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
572
#self.log_message("Wrap mode: " + self.log_wrap)
574
def find_and_remove_client(self, path, name):
575
"""Find an client from its object path and remove it.
577
This is connected to the ClientRemoved signal from the
532
578
Mandos server object."""
533
if client_interface not in interfaces:
534
# Not a Mandos client object; ignore
537
580
client = self.clients_dict[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
584
self.remove_client(client, path)
586
def add_new_client(self, path):
554
587
client_proxy_object = self.bus.get_object(self.busname, path)
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])),
588
self.add_client(MandosClientWidget(server_proxy_object
591
=client_proxy_object,
564
600
def add_client(self, client, path=None):
565
601
self.clients.append(client)
567
603
path = client.proxy.object_path
568
604
self.clients_dict[path] = client
569
self.clients.sort(key=lambda c: c.properties["Name"])
605
self.clients.sort(None, lambda c: c.properties["Name"])
572
608
def remove_client(self, client, path=None):
573
609
self.clients.remove(client)
575
611
path = client.proxy.object_path
576
612
del self.clients_dict[path]
613
if not self.clients_dict:
614
# Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
615
# is completely emptied, we need to recreate it.
616
self.clients = urwid.SimpleListWalker([])
579
620
def refresh(self):
580
621
"""Redraw the screen"""
581
622
canvas = self.topwidget.render(self.size, focus=True)
582
623
self.screen.draw_screen(self.size, canvas)
585
626
"""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),
630
self._input_callback_tag = (GLib.io_add_watch
628
self._input_callback_tag = (gobject.io_add_watch
631
629
(sys.stdin.fileno(),
633
631
self.process_input))
634
632
self.main_loop.run()
635
633
# Main loop has finished, we should close everything now
636
GLib.source_remove(self._input_callback_tag)
634
gobject.source_remove(self._input_callback_tag)
637
635
self.screen.stop()
640
638
self.main_loop.quit()
642
640
def process_input(self, source, condition):
643
641
keys = self.screen.get_input()
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
642
translations = { "ctrl n": "down", # Emacs
643
"ctrl p": "up", # Emacs
644
"ctrl v": "page down", # Emacs
645
"meta v": "page up", # Emacs
646
" ": "page down", # less
647
"f": "page down", # less
648
"b": "page up", # less
656
654
key = translations[key]
657
655
except KeyError: # :-)
660
658
if key == "q" or key == "Q":
663
661
elif key == "window resize":
664
662
self.size = self.screen.get_cols_rows()
666
elif key == "ctrl l":
664
elif key == "\f": # Ctrl-L
669
666
elif key == "l" or key == "D":
670
667
self.toggle_log_display()