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- Committer: Teddy Hogeborn
- Date: 2008-09-06 17:24:58 UTC
- Revision ID: teddy@fukt.bsnet.se-20080906172458-2x5wlfkn7oqckt1y
* legalnotice.xml: Copy DocBook 4.4-formatted text from
<http://www.gnu.org/licenses/gpl-3.0.dbk>.
<http://www.gnu.org/licenses/gpl-3.0.dbk>.
- files added:
- etc-plugins.d-README
- files removed:
- .bzr-builddeb
- debian
- debian/po
- files modified:
- .bzrignore
added
removed
mandos-monitor
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
4
from __future__ import division, absolute_import, with_statement
5
6
import sys
7
import os
8
import signal
9
10
import datetime
11
12
import urwid.curses_display
13
import urwid
14
15
from dbus.mainloop.glib import DBusGMainLoop
16
import gobject
17
18
import dbus
19
20
import UserList
21
22
import locale
23
24
locale.setlocale(locale.LC_ALL, u'')
25
26
import logging
27
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
28
29
# Some useful constants
30
domain = 'se.bsnet.fukt'
31
server_interface = domain + '.Mandos'
32
client_interface = domain + '.Mandos.Client'
33
version = "1.0.15"
34
35
# Always run in monochrome mode
36
urwid.curses_display.curses.has_colors = lambda : False
37
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)
42
43
class MandosClientPropertyCache(object):
44
"""This wraps a Mandos Client D-Bus proxy object, caches the
45
properties and calls a hook function when any of them are
46
changed.
47
"""
48
def __init__(self, proxy_object=None, *args, **kwargs):
49
self.proxy = proxy_object # Mandos Client proxy object
50
51
self.properties = dict()
52
self.proxy.connect_to_signal(u"PropertyChanged",
53
self.property_changed,
54
client_interface,
55
byte_arrays=True)
56
57
self.properties.update(
58
self.proxy.GetAll(client_interface,
59
dbus_interface = dbus.PROPERTIES_IFACE))
60
super(MandosClientPropertyCache, self).__init__(
61
*args, **kwargs)
62
63
def property_changed(self, property=None, value=None):
64
"""This is called whenever we get a PropertyChanged signal
65
It updates the changed property in the "properties" dict.
66
"""
67
# Update properties dict with new value
68
self.properties[property] = value
69
70
71
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
72
"""A Mandos Client which is visible on the screen.
73
"""
74
75
def __init__(self, server_proxy_object=None, update_hook=None,
76
delete_hook=None, logger=None, *args, **kwargs):
77
# Called on update
78
self.update_hook = update_hook
79
# Called on delete
80
self.delete_hook = delete_hook
81
# Mandos Server proxy object
82
self.server_proxy_object = server_proxy_object
83
# Logger
84
self.logger = logger
85
86
# The widget shown normally
87
self._text_widget = urwid.Text(u"")
88
# The widget shown when we have focus
89
self._focus_text_widget = urwid.Text(u"")
90
super(MandosClientWidget, self).__init__(
91
update_hook=update_hook, delete_hook=delete_hook,
92
*args, **kwargs)
93
self.update()
94
self.opened = False
95
self.proxy.connect_to_signal(u"CheckerCompleted",
96
self.checker_completed,
97
client_interface,
98
byte_arrays=True)
99
self.proxy.connect_to_signal(u"CheckerStarted",
100
self.checker_started,
101
client_interface,
102
byte_arrays=True)
103
self.proxy.connect_to_signal(u"GotSecret",
104
self.got_secret,
105
client_interface,
106
byte_arrays=True)
107
self.proxy.connect_to_signal(u"NeedApproval",
108
self.need_approval,
109
client_interface,
110
byte_arrays=True)
111
self.proxy.connect_to_signal(u"Rejected",
112
self.rejected,
113
client_interface,
114
byte_arrays=True)
115
116
def checker_completed(self, exitstatus, condition, command):
117
if exitstatus == 0:
118
#self.logger(u'Checker for client %s (command "%s")'
119
# u' was successful'
120
# % (self.properties[u"name"], command))
121
return
122
if os.WIFEXITED(condition):
123
self.logger(u'Checker for client %s (command "%s")'
124
u' failed with exit code %s'
125
% (self.properties[u"name"], command,
126
os.WEXITSTATUS(condition)))
127
return
128
if os.WIFSIGNALED(condition):
129
self.logger(u'Checker for client %s (command "%s")'
130
u' was killed by signal %s'
131
% (self.properties[u"name"], command,
132
os.WTERMSIG(condition)))
133
return
134
if os.WCOREDUMP(condition):
135
self.logger(u'Checker for client %s (command "%s")'
136
u' dumped core'
137
% (self.properties[u"name"], command))
138
self.logger(u'Checker for client %s completed mysteriously')
139
140
def checker_started(self, command):
141
#self.logger(u'Client %s started checker "%s"'
142
# % (self.properties[u"name"], unicode(command)))
143
pass
144
145
def got_secret(self):
146
self.logger(u'Client %s received its secret'
147
% self.properties[u"name"])
148
149
def need_approval(self, timeout, default):
150
if not default:
151
message = u'Client %s needs approval within %s seconds'
152
else:
153
message = u'Client %s will get its secret in %s seconds'
154
self.logger(message
155
% (self.properties[u"name"], timeout/1000))
156
157
def rejected(self, reason):
158
self.logger(u'Client %s was rejected; reason: %s'
159
% (self.properties[u"name"], reason))
160
161
def selectable(self):
162
"""Make this a "selectable" widget.
163
This overrides the method from urwid.FlowWidget."""
164
return True
165
166
def rows(self, (maxcol,), focus=False):
167
"""How many rows this widget will occupy might depend on
168
whether we have focus or not.
169
This overrides the method from urwid.FlowWidget"""
170
return self.current_widget(focus).rows((maxcol,), focus=focus)
171
172
def current_widget(self, focus=False):
173
if focus or self.opened:
174
return self._focus_widget
175
return self._widget
176
177
def update(self):
178
"Called when what is visible on the screen should be updated."
179
# How to add standout mode to a style
180
with_standout = { u"normal": u"standout",
181
u"bold": u"bold-standout",
182
u"underline-blink":
183
u"underline-blink-standout",
184
u"bold-underline-blink":
185
u"bold-underline-blink-standout",
186
}
187
188
# Rebuild focus and non-focus widgets using current properties
189
self._text = (u'%(name)s: %(enabled)s'
190
% { u"name": self.properties[u"name"],
191
u"enabled":
192
(u"enabled"
193
if self.properties[u"enabled"]
194
else u"DISABLED")})
195
if not urwid.supports_unicode():
196
self._text = self._text.encode("ascii", "replace")
197
textlist = [(u"normal", self._text)]
198
self._text_widget.set_text(textlist)
199
self._focus_text_widget.set_text([(with_standout[text[0]],
200
text[1])
201
if isinstance(text, tuple)
202
else text
203
for text in textlist])
204
self._widget = self._text_widget
205
self._focus_widget = urwid.AttrWrap(self._focus_text_widget,
206
"standout")
207
# Run update hook, if any
208
if self.update_hook is not None:
209
self.update_hook()
210
211
def delete(self):
212
if self.delete_hook is not None:
213
self.delete_hook(self)
214
215
def render(self, (maxcol,), focus=False):
216
"""Render differently if we have focus.
217
This overrides the method from urwid.FlowWidget"""
218
return self.current_widget(focus).render((maxcol,),
219
focus=focus)
220
221
def keypress(self, (maxcol,), key):
222
"""Handle keys.
223
This overrides the method from urwid.FlowWidget"""
224
if key == u"e" or key == u"+":
225
self.proxy.Enable()
226
elif key == u"d" or key == u"-":
227
self.proxy.Disable()
228
elif key == u"r" or key == u"_" or key == u"ctrl k":
229
self.server_proxy_object.RemoveClient(self.proxy
230
.object_path)
231
elif key == u"s":
232
self.proxy.StartChecker()
233
elif key == u"S":
234
self.proxy.StopChecker()
235
elif key == u"C":
236
self.proxy.CheckedOK()
237
# xxx
238
# elif key == u"p" or key == "=":
239
# self.proxy.pause()
240
# elif key == u"u" or key == ":":
241
# self.proxy.unpause()
242
# elif key == u"RET":
243
# self.open()
244
elif key == u"+":
245
self.proxy.Approve(True)
246
elif key == u"-":
247
self.proxy.Approve(False)
248
else:
249
return key
250
251
def property_changed(self, property=None, value=None,
252
*args, **kwargs):
253
"""Call self.update() if old value is not new value.
254
This overrides the method from MandosClientPropertyCache"""
255
property_name = unicode(property)
256
old_value = self.properties.get(property_name)
257
super(MandosClientWidget, self).property_changed(
258
property=property, value=value, *args, **kwargs)
259
if self.properties.get(property_name) != old_value:
260
self.update()
261
262
263
class ConstrainedListBox(urwid.ListBox):
264
"""Like a normal urwid.ListBox, but will consume all "up" or
265
"down" key presses, thus not allowing any containing widgets to
266
use them as an excuse to shift focus away from this widget.
267
"""
268
def keypress(self, (maxcol, maxrow), key):
269
ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
270
if ret in (u"up", u"down"):
271
return
272
return ret
273
274
275
class UserInterface(object):
276
"""This is the entire user interface - the whole screen
277
with boxes, lists of client widgets, etc.
278
"""
279
def __init__(self, max_log_length=1000):
280
DBusGMainLoop(set_as_default=True)
281
282
self.screen = urwid.curses_display.Screen()
283
284
self.screen.register_palette((
285
(u"normal",
286
u"default", u"default", None),
287
(u"bold",
288
u"default", u"default", u"bold"),
289
(u"underline-blink",
290
u"default", u"default", u"underline"),
291
(u"standout",
292
u"default", u"default", u"standout"),
293
(u"bold-underline-blink",
294
u"default", u"default", (u"bold", u"underline")),
295
(u"bold-standout",
296
u"default", u"default", (u"bold", u"standout")),
297
(u"underline-blink-standout",
298
u"default", u"default", (u"underline", u"standout")),
299
(u"bold-underline-blink-standout",
300
u"default", u"default", (u"bold", u"underline",
301
u"standout")),
302
))
303
304
if urwid.supports_unicode():
305
self.divider = u"─" # \u2500
306
#self.divider = u"━" # \u2501
307
else:
308
#self.divider = u"-" # \u002d
309
self.divider = u"_" # \u005f
310
311
self.screen.start()
312
313
self.size = self.screen.get_cols_rows()
314
315
self.clients = urwid.SimpleListWalker([])
316
self.clients_dict = {}
317
318
# We will add Text widgets to this list
319
self.log = []
320
self.max_log_length = max_log_length
321
322
# We keep a reference to the log widget so we can remove it
323
# from the ListWalker without it getting destroyed
324
self.logbox = ConstrainedListBox(self.log)
325
326
# This keeps track of whether self.uilist currently has
327
# self.logbox in it or not
328
self.log_visible = True
329
self.log_wrap = u"any"
330
331
self.rebuild()
332
self.log_message_raw((u"bold",
333
u"Mandos Monitor version " + version))
334
self.log_message_raw((u"bold",
335
u"q: Quit ?: Help"))
336
337
self.busname = domain + '.Mandos'
338
self.main_loop = gobject.MainLoop()
339
self.bus = dbus.SystemBus()
340
mandos_dbus_objc = self.bus.get_object(
341
self.busname, u"/", follow_name_owner_changes=True)
342
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
343
dbus_interface
344
= server_interface)
345
try:
346
mandos_clients = (self.mandos_serv
347
.GetAllClientsWithProperties())
348
except dbus.exceptions.DBusException:
349
mandos_clients = dbus.Dictionary()
350
351
(self.mandos_serv
352
.connect_to_signal(u"ClientRemoved",
353
self.find_and_remove_client,
354
dbus_interface=server_interface,
355
byte_arrays=True))
356
(self.mandos_serv
357
.connect_to_signal(u"ClientAdded",
358
self.add_new_client,
359
dbus_interface=server_interface,
360
byte_arrays=True))
361
(self.mandos_serv
362
.connect_to_signal(u"ClientNotFound",
363
self.client_not_found,
364
dbus_interface=server_interface,
365
byte_arrays=True))
366
for path, client in mandos_clients.iteritems():
367
client_proxy_object = self.bus.get_object(self.busname,
368
path)
369
self.add_client(MandosClientWidget(server_proxy_object
370
=self.mandos_serv,
371
proxy_object
372
=client_proxy_object,
373
properties=client,
374
update_hook
375
=self.refresh,
376
delete_hook
377
=self.remove_client,
378
logger
379
=self.log_message),
380
path=path)
381
382
def client_not_found(self, fingerprint, address):
383
self.log_message((u"Client with address %s and fingerprint %s"
384
u" could not be found" % (address,
385
fingerprint)))
386
387
def rebuild(self):
388
"""This rebuilds the User Interface.
389
Call this when the widget layout needs to change"""
390
self.uilist = []
391
#self.uilist.append(urwid.ListBox(self.clients))
392
self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
393
#header=urwid.Divider(),
394
header=None,
395
footer=urwid.Divider(div_char=self.divider)))
396
if self.log_visible:
397
self.uilist.append(self.logbox)
398
pass
399
self.topwidget = urwid.Pile(self.uilist)
400
401
def log_message(self, message):
402
timestamp = datetime.datetime.now().isoformat()
403
self.log_message_raw(timestamp + u": " + message)
404
405
def log_message_raw(self, markup):
406
"""Add a log message to the log buffer."""
407
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
408
if (self.max_log_length
409
and len(self.log) > self.max_log_length):
410
del self.log[0:len(self.log)-self.max_log_length-1]
411
self.logbox.set_focus(len(self.logbox.body.contents),
412
coming_from=u"above")
413
self.refresh()
414
415
def toggle_log_display(self):
416
"""Toggle visibility of the log buffer."""
417
self.log_visible = not self.log_visible
418
self.rebuild()
419
self.log_message(u"Log visibility changed to: "
420
+ unicode(self.log_visible))
421
422
def change_log_display(self):
423
"""Change type of log display.
424
Currently, this toggles wrapping of text lines."""
425
if self.log_wrap == u"clip":
426
self.log_wrap = u"any"
427
else:
428
self.log_wrap = u"clip"
429
for textwidget in self.log:
430
textwidget.set_wrap_mode(self.log_wrap)
431
self.log_message(u"Wrap mode: " + self.log_wrap)
432
433
def find_and_remove_client(self, path, name):
434
"""Find an client from its object path and remove it.
435
436
This is connected to the ClientRemoved signal from the
437
Mandos server object."""
438
try:
439
client = self.clients_dict[path]
440
except KeyError:
441
# not found?
442
return
443
self.remove_client(client, path)
444
445
def add_new_client(self, path):
446
client_proxy_object = self.bus.get_object(self.busname, path)
447
self.add_client(MandosClientWidget(server_proxy_object
448
=self.mandos_serv,
449
proxy_object
450
=client_proxy_object,
451
update_hook
452
=self.refresh,
453
delete_hook
454
=self.remove_client,
455
logger
456
=self.log_message),
457
path=path)
458
459
def add_client(self, client, path=None):
460
self.clients.append(client)
461
if path is None:
462
path = client.proxy.object_path
463
self.clients_dict[path] = client
464
self.clients.sort(None, lambda c: c.properties[u"name"])
465
self.refresh()
466
467
def remove_client(self, client, path=None):
468
self.clients.remove(client)
469
if path is None:
470
path = client.proxy.object_path
471
del self.clients_dict[path]
472
if not self.clients_dict:
473
# Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
474
# is completely emptied, we need to recreate it.
475
self.clients = urwid.SimpleListWalker([])
476
self.rebuild()
477
self.refresh()
478
479
def refresh(self):
480
"""Redraw the screen"""
481
canvas = self.topwidget.render(self.size, focus=True)
482
self.screen.draw_screen(self.size, canvas)
483
484
def run(self):
485
"""Start the main loop and exit when it's done."""
486
self.refresh()
487
self._input_callback_tag = (gobject.io_add_watch
488
(sys.stdin.fileno(),
489
gobject.IO_IN,
490
self.process_input))
491
self.main_loop.run()
492
# Main loop has finished, we should close everything now
493
gobject.source_remove(self._input_callback_tag)
494
self.screen.stop()
495
496
def stop(self):
497
self.main_loop.quit()
498
499
def process_input(self, source, condition):
500
keys = self.screen.get_input()
501
translations = { u"ctrl n": u"down", # Emacs
502
u"ctrl p": u"up", # Emacs
503
u"ctrl v": u"page down", # Emacs
504
u"meta v": u"page up", # Emacs
505
u" ": u"page down", # less
506
u"f": u"page down", # less
507
u"b": u"page up", # less
508
u"j": u"down", # vi
509
u"k": u"up", # vi
510
}
511
for key in keys:
512
try:
513
key = translations[key]
514
except KeyError: # :-)
515
pass
516
517
if key == u"q" or key == u"Q":
518
self.stop()
519
break
520
elif key == u"window resize":
521
self.size = self.screen.get_cols_rows()
522
self.refresh()
523
elif key == u"\f": # Ctrl-L
524
self.refresh()
525
elif key == u"l" or key == u"D":
526
self.toggle_log_display()
527
self.refresh()
528
elif key == u"w" or key == u"i":
529
self.change_log_display()
530
self.refresh()
531
elif key == u"?" or key == u"f1" or key == u"esc":
532
if not self.log_visible:
533
self.log_visible = True
534
self.rebuild()
535
self.log_message_raw((u"bold",
536
u" ".
537
join((u"q: Quit",
538
u"?: Help",
539
u"l: Log window toggle",
540
u"TAB: Switch window",
541
u"w: Wrap (log)"))))
542
self.log_message_raw((u"bold",
543
u" "
544
.join((u"Clients:",
545
u"e: Enable",
546
u"d: Disable",
547
u"r: Remove",
548
u"s: Start new checker",
549
u"S: Stop checker",
550
u"C: Checker OK"))))
551
self.refresh()
552
elif key == u"tab":
553
if self.topwidget.get_focus() is self.logbox:
554
self.topwidget.set_focus(0)
555
else:
556
self.topwidget.set_focus(self.logbox)
557
self.refresh()
558
#elif (key == u"end" or key == u"meta >" or key == u"G"
559
# or key == u">"):
560
# pass # xxx end-of-buffer
561
#elif (key == u"home" or key == u"meta <" or key == u"g"
562
# or key == u"<"):
563
# pass # xxx beginning-of-buffer
564
#elif key == u"ctrl e" or key == u"$":
565
# pass # xxx move-end-of-line
566
#elif key == u"ctrl a" or key == u"^":
567
# pass # xxx move-beginning-of-line
568
#elif key == u"ctrl b" or key == u"meta (" or key == u"h":
569
# pass # xxx left
570
#elif key == u"ctrl f" or key == u"meta )" or key == u"l":
571
# pass # xxx right
572
#elif key == u"a":
573
# pass # scroll up log
574
#elif key == u"z":
575
# pass # scroll down log
576
elif self.topwidget.selectable():
577
self.topwidget.keypress(self.size, key)
578
self.refresh()
579
return True
580
581
ui = UserInterface()
582
try:
583
ui.run()
584
except Exception, e:
585
ui.log_message(unicode(e))
586
ui.screen.stop()
587
raise
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