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- Committer: Björn Påhlsson
- Date: 2009-09-07 23:50:12 UTC
- mfrom: (363 mandos)
- mto: (24.1.154 mandos) (237.4.3 mandos-release)
- mto: This revision was merged to the branch mainline in revision 415.
- Revision ID: belorn@braxen-20090907235012-nv0phcej18xq52qv
merge
- files removed:
- DBUS-API
- debian/source
- debian/upstream
- network-hooks.d
- files modified:
- .bzrignore
added
removed
mandos-monitor
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
# Mandos Monitor - Control and monitor the Mandos server
5
#
6
# Copyright © 2009-2014 Teddy Hogeborn
7
# Copyright © 2009-2014 Björn Påhlsson
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#
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.
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#
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# 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.
18
#
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/>.
22
#
23
# Contact the authors at <mandos@recompile.se>.
24
#
25
26
from __future__ import (division, absolute_import, print_function,
27
unicode_literals)
28
try:
29
from future_builtins import *
30
except ImportError:
31
pass
32
33
import sys
34
import os
35
36
import datetime
37
38
import urwid.curses_display
39
import urwid
40
41
from dbus.mainloop.glib import DBusGMainLoop
42
try:
43
import gobject
44
except ImportError:
45
from gi.repository import GObject as gobject
46
47
import dbus
48
49
import locale
50
51
if sys.version_info[0] == 2:
52
str = unicode
53
54
locale.setlocale(locale.LC_ALL, '')
55
56
import logging
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
58
59
# Some useful constants
60
domain = 'se.recompile'
61
server_interface = domain + '.Mandos'
62
client_interface = domain + '.Mandos.Client'
63
version = "1.6.7"
64
65
def isoformat_to_datetime(iso):
66
"Parse an ISO 8601 date string to a datetime.datetime()"
67
if not iso:
68
return None
69
d, t = iso.split("T", 1)
70
year, month, day = d.split("-", 2)
71
hour, minute, second = t.split(":", 2)
72
second, fraction = divmod(float(second), 1)
73
return datetime.datetime(int(year),
74
int(month),
75
int(day),
76
int(hour),
77
int(minute),
78
int(second), # Whole seconds
79
int(fraction*1000000)) # Microseconds
80
81
class MandosClientPropertyCache(object):
82
"""This wraps a Mandos Client D-Bus proxy object, caches the
83
properties and calls a hook function when any of them are
84
changed.
85
"""
86
def __init__(self, proxy_object=None, properties=None, **kwargs):
87
self.proxy = proxy_object # Mandos Client proxy object
88
self.properties = dict() if properties is None else properties
89
self.property_changed_match = (
90
self.proxy.connect_to_signal("PropertyChanged",
91
self._property_changed,
92
client_interface,
93
byte_arrays=True))
94
95
if properties is None:
96
self.properties.update(
97
self.proxy.GetAll(client_interface,
98
dbus_interface
99
= dbus.PROPERTIES_IFACE))
100
101
super(MandosClientPropertyCache, self).__init__(**kwargs)
102
103
def _property_changed(self, property, value):
104
"""Helper which takes positional arguments"""
105
return self.property_changed(property=property, value=value)
106
107
def property_changed(self, property=None, value=None):
108
"""This is called whenever we get a PropertyChanged signal
109
It updates the changed property in the "properties" dict.
110
"""
111
# Update properties dict with new value
112
self.properties[property] = value
113
114
def delete(self):
115
self.property_changed_match.remove()
116
117
118
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
119
"""A Mandos Client which is visible on the screen.
120
"""
121
122
def __init__(self, server_proxy_object=None, update_hook=None,
123
delete_hook=None, logger=None, **kwargs):
124
# Called on update
125
self.update_hook = update_hook
126
# Called on delete
127
self.delete_hook = delete_hook
128
# Mandos Server proxy object
129
self.server_proxy_object = server_proxy_object
130
# Logger
131
self.logger = logger
132
133
self._update_timer_callback_tag = None
134
135
# The widget shown normally
136
self._text_widget = urwid.Text("")
137
# The widget shown when we have focus
138
self._focus_text_widget = urwid.Text("")
139
super(MandosClientWidget, self).__init__(**kwargs)
140
self.update()
141
self.opened = False
142
143
self.match_objects = (
144
self.proxy.connect_to_signal("CheckerCompleted",
145
self.checker_completed,
146
client_interface,
147
byte_arrays=True),
148
self.proxy.connect_to_signal("CheckerStarted",
149
self.checker_started,
150
client_interface,
151
byte_arrays=True),
152
self.proxy.connect_to_signal("GotSecret",
153
self.got_secret,
154
client_interface,
155
byte_arrays=True),
156
self.proxy.connect_to_signal("NeedApproval",
157
self.need_approval,
158
client_interface,
159
byte_arrays=True),
160
self.proxy.connect_to_signal("Rejected",
161
self.rejected,
162
client_interface,
163
byte_arrays=True))
164
self.logger('Created client {}'
165
.format(self.properties["Name"]), level=0)
166
167
def using_timer(self, flag):
168
"""Call this method with True or False when timer should be
169
activated or deactivated.
170
"""
171
if flag and self._update_timer_callback_tag is None:
172
# Will update the shown timer value every second
173
self._update_timer_callback_tag = (gobject.timeout_add
174
(1000,
175
self.update_timer))
176
elif not (flag or self._update_timer_callback_tag is None):
177
gobject.source_remove(self._update_timer_callback_tag)
178
self._update_timer_callback_tag = None
179
180
def checker_completed(self, exitstatus, condition, command):
181
if exitstatus == 0:
182
self.logger('Checker for client {} (command "{}")'
183
' succeeded'.format(self.properties["Name"],
184
command), level=0)
185
self.update()
186
return
187
# Checker failed
188
if os.WIFEXITED(condition):
189
self.logger('Checker for client {} (command "{}") failed'
190
' with exit code {}'
191
.format(self.properties["Name"], command,
192
os.WEXITSTATUS(condition)))
193
elif os.WIFSIGNALED(condition):
194
self.logger('Checker for client {} (command "{}") was'
195
' killed by signal {}'
196
.format(self.properties["Name"], command,
197
os.WTERMSIG(condition)))
198
elif os.WCOREDUMP(condition):
199
self.logger('Checker for client {} (command "{}") dumped'
200
' core'.format(self.properties["Name"],
201
command))
202
else:
203
self.logger('Checker for client {} completed'
204
' mysteriously'
205
.format(self.properties["Name"]))
206
self.update()
207
208
def checker_started(self, command):
209
"""Server signals that a checker started."""
210
self.logger('Client {} started checker "{}"'
211
.format(self.properties["Name"],
212
command), level=0)
213
214
def got_secret(self):
215
self.logger('Client {} received its secret'
216
.format(self.properties["Name"]))
217
218
def need_approval(self, timeout, default):
219
if not default:
220
message = 'Client {} needs approval within {} seconds'
221
else:
222
message = 'Client {} will get its secret in {} seconds'
223
self.logger(message.format(self.properties["Name"],
224
timeout/1000))
225
226
def rejected(self, reason):
227
self.logger('Client {} was rejected; reason: {}'
228
.format(self.properties["Name"], reason))
229
230
def selectable(self):
231
"""Make this a "selectable" widget.
232
This overrides the method from urwid.FlowWidget."""
233
return True
234
235
def rows(self, maxcolrow, focus=False):
236
"""How many rows this widget will occupy might depend on
237
whether we have focus or not.
238
This overrides the method from urwid.FlowWidget"""
239
return self.current_widget(focus).rows(maxcolrow, focus=focus)
240
241
def current_widget(self, focus=False):
242
if focus or self.opened:
243
return self._focus_widget
244
return self._widget
245
246
def update(self):
247
"Called when what is visible on the screen should be updated."
248
# How to add standout mode to a style
249
with_standout = { "normal": "standout",
250
"bold": "bold-standout",
251
"underline-blink":
252
"underline-blink-standout",
253
"bold-underline-blink":
254
"bold-underline-blink-standout",
255
}
256
257
# Rebuild focus and non-focus widgets using current properties
258
259
# Base part of a client. Name!
260
base = '{name}: '.format(name=self.properties["Name"])
261
if not self.properties["Enabled"]:
262
message = "DISABLED"
263
self.using_timer(False)
264
elif self.properties["ApprovalPending"]:
265
timeout = datetime.timedelta(milliseconds
266
= self.properties
267
["ApprovalDelay"])
268
last_approval_request = isoformat_to_datetime(
269
self.properties["LastApprovalRequest"])
270
if last_approval_request is not None:
271
timer = max(timeout - (datetime.datetime.utcnow()
272
- last_approval_request),
273
datetime.timedelta())
274
else:
275
timer = datetime.timedelta()
276
if self.properties["ApprovedByDefault"]:
277
message = "Approval in {}. (d)eny?"
278
else:
279
message = "Denial in {}. (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"]
285
if expires == "":
286
timer = datetime.timedelta(0)
287
else:
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: {}'
294
.format(str(timer).rsplit(".", 1)[0]))
295
self.using_timer(True)
296
else:
297
message = "enabled"
298
self.using_timer(False)
299
self._text = "{}{}".format(base, message)
300
301
if not urwid.supports_unicode():
302
self._text = self._text.encode("ascii", "replace")
303
textlist = [("normal", self._text)]
304
self._text_widget.set_text(textlist)
305
self._focus_text_widget.set_text([(with_standout[text[0]],
306
text[1])
307
if isinstance(text, tuple)
308
else text
309
for text in textlist])
310
self._widget = self._text_widget
311
self._focus_widget = urwid.AttrWrap(self._focus_text_widget,
312
"standout")
313
# Run update hook, if any
314
if self.update_hook is not None:
315
self.update_hook()
316
317
def update_timer(self):
318
"""called by gobject. Will indefinitely loop until
319
gobject.source_remove() on tag is called"""
320
self.update()
321
return True # Keep calling this
322
323
def delete(self, **kwargs):
324
if self._update_timer_callback_tag is not None:
325
gobject.source_remove(self._update_timer_callback_tag)
326
self._update_timer_callback_tag = None
327
for match in self.match_objects:
328
match.remove()
329
self.match_objects = ()
330
if self.delete_hook is not None:
331
self.delete_hook(self)
332
return super(MandosClientWidget, self).delete(**kwargs)
333
334
def render(self, maxcolrow, focus=False):
335
"""Render differently if we have focus.
336
This overrides the method from urwid.FlowWidget"""
337
return self.current_widget(focus).render(maxcolrow,
338
focus=focus)
339
340
def keypress(self, maxcolrow, key):
341
"""Handle keys.
342
This overrides the method from urwid.FlowWidget"""
343
if key == "+":
344
self.proxy.Enable(dbus_interface = client_interface,
345
ignore_reply=True)
346
elif key == "-":
347
self.proxy.Disable(dbus_interface = client_interface,
348
ignore_reply=True)
349
elif key == "a":
350
self.proxy.Approve(dbus.Boolean(True, variant_level=1),
351
dbus_interface = client_interface,
352
ignore_reply=True)
353
elif key == "d":
354
self.proxy.Approve(dbus.Boolean(False, variant_level=1),
355
dbus_interface = client_interface,
356
ignore_reply=True)
357
elif key == "R" or key == "_" or key == "ctrl k":
358
self.server_proxy_object.RemoveClient(self.proxy
359
.object_path,
360
ignore_reply=True)
361
elif key == "s":
362
self.proxy.StartChecker(dbus_interface = client_interface,
363
ignore_reply=True)
364
elif key == "S":
365
self.proxy.StopChecker(dbus_interface = client_interface,
366
ignore_reply=True)
367
elif key == "C":
368
self.proxy.CheckedOK(dbus_interface = client_interface,
369
ignore_reply=True)
370
# xxx
371
# elif key == "p" or key == "=":
372
# self.proxy.pause()
373
# elif key == "u" or key == ":":
374
# self.proxy.unpause()
375
# elif key == "RET":
376
# self.open()
377
else:
378
return key
379
380
def property_changed(self, property=None, **kwargs):
381
"""Call self.update() if old value is not new value.
382
This overrides the method from MandosClientPropertyCache"""
383
property_name = str(property)
384
old_value = self.properties.get(property_name)
385
super(MandosClientWidget, self).property_changed(
386
property=property, **kwargs)
387
if self.properties.get(property_name) != old_value:
388
self.update()
389
390
391
class ConstrainedListBox(urwid.ListBox):
392
"""Like a normal urwid.ListBox, but will consume all "up" or
393
"down" key presses, thus not allowing any containing widgets to
394
use them as an excuse to shift focus away from this widget.
395
"""
396
def keypress(self, *args, **kwargs):
397
ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
398
if ret in ("up", "down"):
399
return
400
return ret
401
402
403
class UserInterface(object):
404
"""This is the entire user interface - the whole screen
405
with boxes, lists of client widgets, etc.
406
"""
407
def __init__(self, max_log_length=1000, log_level=1):
408
DBusGMainLoop(set_as_default=True)
409
410
self.screen = urwid.curses_display.Screen()
411
412
self.screen.register_palette((
413
("normal",
414
"default", "default", None),
415
("bold",
416
"bold", "default", "bold"),
417
("underline-blink",
418
"underline,blink", "default", "underline,blink"),
419
("standout",
420
"standout", "default", "standout"),
421
("bold-underline-blink",
422
"bold,underline,blink", "default", "bold,underline,blink"),
423
("bold-standout",
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"),
431
))
432
433
if urwid.supports_unicode():
434
self.divider = "─" # \u2500
435
#self.divider = "━" # \u2501
436
else:
437
#self.divider = "-" # \u002d
438
self.divider = "_" # \u005f
439
440
self.screen.start()
441
442
self.size = self.screen.get_cols_rows()
443
444
self.clients = urwid.SimpleListWalker([])
445
self.clients_dict = {}
446
447
# We will add Text widgets to this list
448
self.log = []
449
self.max_log_length = max_log_length
450
451
self.log_level = log_level
452
453
# We keep a reference to the log widget so we can remove it
454
# from the ListWalker without it getting destroyed
455
self.logbox = ConstrainedListBox(self.log)
456
457
# This keeps track of whether self.uilist currently has
458
# self.logbox in it or not
459
self.log_visible = True
460
self.log_wrap = "any"
461
462
self.rebuild()
463
self.log_message_raw(("bold",
464
"Mandos Monitor version " + version))
465
self.log_message_raw(("bold",
466
"q: Quit ?: Help"))
467
468
self.busname = domain + '.Mandos'
469
self.main_loop = gobject.MainLoop()
470
471
def client_not_found(self, fingerprint, address):
472
self.log_message("Client with address {} and fingerprint {}"
473
" could not be found"
474
.format(address, fingerprint))
475
476
def rebuild(self):
477
"""This rebuilds the User Interface.
478
Call this when the widget layout needs to change"""
479
self.uilist = []
480
#self.uilist.append(urwid.ListBox(self.clients))
481
self.uilist.append(urwid.Frame(ConstrainedListBox(self.
482
clients),
483
#header=urwid.Divider(),
484
header=None,
485
footer=
486
urwid.Divider(div_char=
487
self.divider)))
488
if self.log_visible:
489
self.uilist.append(self.logbox)
490
self.topwidget = urwid.Pile(self.uilist)
491
492
def log_message(self, message, level=1):
493
"""Log message formatted with timestamp"""
494
if level < self.log_level:
495
return
496
timestamp = datetime.datetime.now().isoformat()
497
self.log_message_raw("{}: {}".format(timestamp, message),
498
level=level)
499
500
def log_message_raw(self, markup, level=1):
501
"""Add a log message to the log buffer."""
502
if level < self.log_level:
503
return
504
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
505
if (self.max_log_length
506
and len(self.log) > self.max_log_length):
507
del self.log[0:len(self.log)-self.max_log_length-1]
508
self.logbox.set_focus(len(self.logbox.body.contents),
509
coming_from="above")
510
self.refresh()
511
512
def toggle_log_display(self):
513
"""Toggle visibility of the log buffer."""
514
self.log_visible = not self.log_visible
515
self.rebuild()
516
self.log_message("Log visibility changed to: {}"
517
.format(self.log_visible), level=0)
518
519
def change_log_display(self):
520
"""Change type of log display.
521
Currently, this toggles wrapping of text lines."""
522
if self.log_wrap == "clip":
523
self.log_wrap = "any"
524
else:
525
self.log_wrap = "clip"
526
for textwidget in self.log:
527
textwidget.set_wrap_mode(self.log_wrap)
528
self.log_message("Wrap mode: {}".format(self.log_wrap),
529
level=0)
530
531
def find_and_remove_client(self, path, name):
532
"""Find a client by its object path and remove it.
533
534
This is connected to the ClientRemoved signal from the
535
Mandos server object."""
536
try:
537
client = self.clients_dict[path]
538
except KeyError:
539
# not found?
540
self.log_message("Unknown client {!r} ({!r}) removed"
541
.format(name, path))
542
return
543
client.delete()
544
545
def add_new_client(self, path):
546
client_proxy_object = self.bus.get_object(self.busname, path)
547
self.add_client(MandosClientWidget(server_proxy_object
548
=self.mandos_serv,
549
proxy_object
550
=client_proxy_object,
551
update_hook
552
=self.refresh,
553
delete_hook
554
=self.remove_client,
555
logger
556
=self.log_message),
557
path=path)
558
559
def add_client(self, client, path=None):
560
self.clients.append(client)
561
if path is None:
562
path = client.proxy.object_path
563
self.clients_dict[path] = client
564
self.clients.sort(key=lambda c: c.properties["Name"])
565
self.refresh()
566
567
def remove_client(self, client, path=None):
568
self.clients.remove(client)
569
if path is None:
570
path = client.proxy.object_path
571
del self.clients_dict[path]
572
self.refresh()
573
574
def refresh(self):
575
"""Redraw the screen"""
576
canvas = self.topwidget.render(self.size, focus=True)
577
self.screen.draw_screen(self.size, canvas)
578
579
def run(self):
580
"""Start the main loop and exit when it's done."""
581
self.bus = dbus.SystemBus()
582
mandos_dbus_objc = self.bus.get_object(
583
self.busname, "/", follow_name_owner_changes=True)
584
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
585
dbus_interface
586
= server_interface)
587
try:
588
mandos_clients = (self.mandos_serv
589
.GetAllClientsWithProperties())
590
if not mandos_clients:
591
self.log_message_raw(("bold", "Note: Server has no clients."))
592
except dbus.exceptions.DBusException:
593
self.log_message_raw(("bold", "Note: No Mandos server running."))
594
mandos_clients = dbus.Dictionary()
595
596
(self.mandos_serv
597
.connect_to_signal("ClientRemoved",
598
self.find_and_remove_client,
599
dbus_interface=server_interface,
600
byte_arrays=True))
601
(self.mandos_serv
602
.connect_to_signal("ClientAdded",
603
self.add_new_client,
604
dbus_interface=server_interface,
605
byte_arrays=True))
606
(self.mandos_serv
607
.connect_to_signal("ClientNotFound",
608
self.client_not_found,
609
dbus_interface=server_interface,
610
byte_arrays=True))
611
for path, client in mandos_clients.items():
612
client_proxy_object = self.bus.get_object(self.busname,
613
path)
614
self.add_client(MandosClientWidget(server_proxy_object
615
=self.mandos_serv,
616
proxy_object
617
=client_proxy_object,
618
properties=client,
619
update_hook
620
=self.refresh,
621
delete_hook
622
=self.remove_client,
623
logger
624
=self.log_message),
625
path=path)
626
627
self.refresh()
628
self._input_callback_tag = (gobject.io_add_watch
629
(sys.stdin.fileno(),
630
gobject.IO_IN,
631
self.process_input))
632
self.main_loop.run()
633
# Main loop has finished, we should close everything now
634
gobject.source_remove(self._input_callback_tag)
635
self.screen.stop()
636
637
def stop(self):
638
self.main_loop.quit()
639
640
def process_input(self, source, condition):
641
keys = self.screen.get_input()
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
649
"j": "down", # vi
650
"k": "up", # vi
651
}
652
for key in keys:
653
try:
654
key = translations[key]
655
except KeyError: # :-)
656
pass
657
658
if key == "q" or key == "Q":
659
self.stop()
660
break
661
elif key == "window resize":
662
self.size = self.screen.get_cols_rows()
663
self.refresh()
664
elif key == "ctrl l":
665
self.screen.clear()
666
self.refresh()
667
elif key == "l" or key == "D":
668
self.toggle_log_display()
669
self.refresh()
670
elif key == "w" or key == "i":
671
self.change_log_display()
672
self.refresh()
673
elif key == "?" or key == "f1" or key == "esc":
674
if not self.log_visible:
675
self.log_visible = True
676
self.rebuild()
677
self.log_message_raw(("bold",
678
" ".
679
join(("q: Quit",
680
"?: Help",
681
"l: Log window toggle",
682
"TAB: Switch window",
683
"w: Wrap (log lines)",
684
"v: Toggle verbose log",
685
))))
686
self.log_message_raw(("bold",
687
" "
688
.join(("Clients:",
689
"+: Enable",
690
"-: Disable",
691
"R: Remove",
692
"s: Start new checker",
693
"S: Stop checker",
694
"C: Checker OK",
695
"a: Approve",
696
"d: Deny"))))
697
self.refresh()
698
elif key == "tab":
699
if self.topwidget.get_focus() is self.logbox:
700
self.topwidget.set_focus(0)
701
else:
702
self.topwidget.set_focus(self.logbox)
703
self.refresh()
704
elif key == "v":
705
if self.log_level == 0:
706
self.log_level = 1
707
self.log_message("Verbose mode: Off")
708
else:
709
self.log_level = 0
710
self.log_message("Verbose mode: On")
711
#elif (key == "end" or key == "meta >" or key == "G"
712
# or key == ">"):
713
# pass # xxx end-of-buffer
714
#elif (key == "home" or key == "meta <" or key == "g"
715
# or key == "<"):
716
# pass # xxx beginning-of-buffer
717
#elif key == "ctrl e" or key == "$":
718
# pass # xxx move-end-of-line
719
#elif key == "ctrl a" or key == "^":
720
# pass # xxx move-beginning-of-line
721
#elif key == "ctrl b" or key == "meta (" or key == "h":
722
# pass # xxx left
723
#elif key == "ctrl f" or key == "meta )" or key == "l":
724
# pass # xxx right
725
#elif key == "a":
726
# pass # scroll up log
727
#elif key == "z":
728
# pass # scroll down log
729
elif self.topwidget.selectable():
730
self.topwidget.keypress(self.size, key)
731
self.refresh()
732
return True
733
734
ui = UserInterface()
735
try:
736
ui.run()
737
except KeyboardInterrupt:
738
ui.screen.stop()
739
except Exception as e:
740
ui.log_message(str(e))
741
ui.screen.stop()
742
raise
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0