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- Committer: Teddy Hogeborn
- Date: 2009-02-13 05:38:21 UTC
- mto: (237.4.2 mandos-pipe-ipc) (24.1.137 mandos) (299.1.1 release) (300.1.1 release) (301.1.1 release)
- mto: This revision was merged to the branch mainline in revision 250.
- Revision ID: teddy@fukt.bsnet.se-20090213053821-03e696gckk4nbjps
Support not using IPv6 in server:
* mandos (AvahiService.__init__): Take new "protocol" parameter. All
callers changed.
(IPv6_TCPServer.__init__): Take new "use_ipv6" parameter. All
callers changed.
(IPv6_TCPServer.server_bind): Create IPv4 socket if not using IPv6.
(main): New "--no-ipv6" command line option. New "use_ipv6" config
option.
* mandos-options.xml ([@id="address"]): Document conditional IPv4
address support.
([@id="ipv6"]): New paragraph.
* mandos.conf (use_ipv6): New config option.
* mandos.conf.xml (OPTIONS): Document new "use_dbus" option.
(EXAMPLE): Changed to use IPv6 link-local address. Added "use_ipv6"
option.
* mandos.xml (SYNOPSIS): New "--no-ipv6" option.
(OPTIONS): Document new "--no-ipv6" option.
* mandos (AvahiService.__init__): Take new "protocol" parameter. All
callers changed.
(IPv6_TCPServer.__init__): Take new "use_ipv6" parameter. All
callers changed.
(IPv6_TCPServer.server_bind): Create IPv4 socket if not using IPv6.
(main): New "--no-ipv6" command line option. New "use_ipv6" config
option.
* mandos-options.xml ([@id="address"]): Document conditional IPv4
address support.
([@id="ipv6"]): New paragraph.
* mandos.conf (use_ipv6): New config option.
* mandos.conf.xml (OPTIONS): Document new "use_dbus" option.
(EXAMPLE): Changed to use IPv6 link-local address. Added "use_ipv6"
option.
* mandos.xml (SYNOPSIS): New "--no-ipv6" option.
(OPTIONS): Document new "--no-ipv6" option.
- files removed:
- dbus-mandos.conf
- files modified:
- INSTALL
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
def isoformat_to_datetime(iso):
44
"Parse an ISO 8601 date string to a datetime.datetime()"
45
if not iso:
46
return None
47
d, t = iso.split(u"T", 1)
48
year, month, day = d.split(u"-", 2)
49
hour, minute, second = t.split(u":", 2)
50
second, fraction = divmod(float(second), 1)
51
return datetime.datetime(int(year),
52
int(month),
53
int(day),
54
int(hour),
55
int(minute),
56
int(second), # Whole seconds
57
int(fraction*1000000)) # Microseconds
58
59
class MandosClientPropertyCache(object):
60
"""This wraps a Mandos Client D-Bus proxy object, caches the
61
properties and calls a hook function when any of them are
62
changed.
63
"""
64
def __init__(self, proxy_object=None, *args, **kwargs):
65
self.proxy = proxy_object # Mandos Client proxy object
66
67
self.properties = dict()
68
self.proxy.connect_to_signal(u"PropertyChanged",
69
self.property_changed,
70
client_interface,
71
byte_arrays=True)
72
73
self.properties.update(
74
self.proxy.GetAll(client_interface,
75
dbus_interface = dbus.PROPERTIES_IFACE))
76
77
#XXX This break good super behaviour!
78
# super(MandosClientPropertyCache, self).__init__(
79
# *args, **kwargs)
80
81
def property_changed(self, property=None, value=None):
82
"""This is called whenever we get a PropertyChanged signal
83
It updates the changed property in the "properties" dict.
84
"""
85
# Update properties dict with new value
86
self.properties[property] = value
87
88
89
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
90
"""A Mandos Client which is visible on the screen.
91
"""
92
93
def __init__(self, server_proxy_object=None, update_hook=None,
94
delete_hook=None, logger=None, *args, **kwargs):
95
# Called on update
96
self.update_hook = update_hook
97
# Called on delete
98
self.delete_hook = delete_hook
99
# Mandos Server proxy object
100
self.server_proxy_object = server_proxy_object
101
# Logger
102
self.logger = logger
103
104
self._update_timer_callback_tag = None
105
self.last_checker_failed = False
106
107
# The widget shown normally
108
self._text_widget = urwid.Text(u"")
109
# The widget shown when we have focus
110
self._focus_text_widget = urwid.Text(u"")
111
super(MandosClientWidget, self).__init__(
112
update_hook=update_hook, delete_hook=delete_hook,
113
*args, **kwargs)
114
self.update()
115
self.opened = False
116
self.proxy.connect_to_signal(u"CheckerCompleted",
117
self.checker_completed,
118
client_interface,
119
byte_arrays=True)
120
self.proxy.connect_to_signal(u"CheckerStarted",
121
self.checker_started,
122
client_interface,
123
byte_arrays=True)
124
self.proxy.connect_to_signal(u"GotSecret",
125
self.got_secret,
126
client_interface,
127
byte_arrays=True)
128
self.proxy.connect_to_signal(u"NeedApproval",
129
self.need_approval,
130
client_interface,
131
byte_arrays=True)
132
self.proxy.connect_to_signal(u"Rejected",
133
self.rejected,
134
client_interface,
135
byte_arrays=True)
136
last_checked_ok = isoformat_to_datetime(self.properties
137
["last_checked_ok"])
138
if last_checked_ok is None:
139
self.last_checker_failed = True
140
else:
141
self.last_checker_failed = ((datetime.datetime.utcnow()
142
- last_checked_ok)
143
> datetime.timedelta
144
(milliseconds=
145
self.properties["interval"]))
146
if self.last_checker_failed:
147
self._update_timer_callback_tag = (gobject.timeout_add
148
(1000,
149
self.update_timer))
150
151
def checker_completed(self, exitstatus, condition, command):
152
if exitstatus == 0:
153
if self.last_checker_failed:
154
self.last_checker_failed = False
155
gobject.source_remove(self._update_timer_callback_tag)
156
self._update_timer_callback_tag = None
157
self.logger(u'Checker for client %s (command "%s")'
158
u' was successful'
159
% (self.properties[u"name"], command))
160
self.update()
161
return
162
# Checker failed
163
if not self.last_checker_failed:
164
self.last_checker_failed = True
165
self._update_timer_callback_tag = (gobject.timeout_add
166
(1000,
167
self.update_timer))
168
if os.WIFEXITED(condition):
169
self.logger(u'Checker for client %s (command "%s")'
170
u' failed with exit code %s'
171
% (self.properties[u"name"], command,
172
os.WEXITSTATUS(condition)))
173
elif os.WIFSIGNALED(condition):
174
self.logger(u'Checker for client %s (command "%s")'
175
u' was killed by signal %s'
176
% (self.properties[u"name"], command,
177
os.WTERMSIG(condition)))
178
elif os.WCOREDUMP(condition):
179
self.logger(u'Checker for client %s (command "%s")'
180
u' dumped core'
181
% (self.properties[u"name"], command))
182
else:
183
self.logger(u'Checker for client %s completed mysteriously')
184
self.update()
185
186
def checker_started(self, command):
187
#self.logger(u'Client %s started checker "%s"'
188
# % (self.properties[u"name"], unicode(command)))
189
pass
190
191
def got_secret(self):
192
self.logger(u'Client %s received its secret'
193
% self.properties[u"name"])
194
195
def need_approval(self, timeout, default):
196
if not default:
197
message = u'Client %s needs approval within %s seconds'
198
else:
199
message = u'Client %s will get its secret in %s seconds'
200
self.logger(message
201
% (self.properties[u"name"], timeout/1000))
202
203
def rejected(self, reason):
204
self.logger(u'Client %s was rejected; reason: %s'
205
% (self.properties[u"name"], reason))
206
207
def selectable(self):
208
"""Make this a "selectable" widget.
209
This overrides the method from urwid.FlowWidget."""
210
return True
211
212
def rows(self, (maxcol,), focus=False):
213
"""How many rows this widget will occupy might depend on
214
whether we have focus or not.
215
This overrides the method from urwid.FlowWidget"""
216
return self.current_widget(focus).rows((maxcol,), focus=focus)
217
218
def current_widget(self, focus=False):
219
if focus or self.opened:
220
return self._focus_widget
221
return self._widget
222
223
def update(self):
224
"Called when what is visible on the screen should be updated."
225
# How to add standout mode to a style
226
with_standout = { u"normal": u"standout",
227
u"bold": u"bold-standout",
228
u"underline-blink":
229
u"underline-blink-standout",
230
u"bold-underline-blink":
231
u"bold-underline-blink-standout",
232
}
233
234
# Rebuild focus and non-focus widgets using current properties
235
236
# Base part of a client. Name!
237
base = (u'%(name)s: '
238
% {u"name": self.properties[u"name"]})
239
if not self.properties[u"enabled"]:
240
message = u"DISABLED"
241
elif self.last_checker_failed:
242
timeout = datetime.timedelta(milliseconds
243
= self.properties[u"timeout"])
244
last_ok = isoformat_to_datetime(
245
max((self.properties["last_checked_ok"]
246
or self.properties["created"]),
247
self.properties[u"last_enabled"]))
248
timer = timeout - (datetime.datetime.utcnow() - last_ok)
249
message = (u'A checker has failed! Time until client gets diabled: %s'
250
% unicode(timer).rsplit(".", 1)[0])
251
elif self.properties[u"approved_pending"]:
252
if self.properties[u"approved_by_default"]:
253
message = u"Connection established to client. (d)eny?"
254
else:
255
message = u"Seeks approval to send secret. (a)pprove?"
256
else:
257
message = u"enabled"
258
self._text = "%s%s" % (base, message)
259
260
if not urwid.supports_unicode():
261
self._text = self._text.encode("ascii", "replace")
262
textlist = [(u"normal", self._text)]
263
self._text_widget.set_text(textlist)
264
self._focus_text_widget.set_text([(with_standout[text[0]],
265
text[1])
266
if isinstance(text, tuple)
267
else text
268
for text in textlist])
269
self._widget = self._text_widget
270
self._focus_widget = urwid.AttrWrap(self._focus_text_widget,
271
"standout")
272
# Run update hook, if any
273
if self.update_hook is not None:
274
self.update_hook()
275
276
def update_timer(self):
277
"called by gobject"
278
self.update()
279
return True # Keep calling this
280
281
def delete(self):
282
if self._update_timer_callback_tag is not None:
283
gobject.source_remove(self._update_timer_callback_tag)
284
self._update_timer_callback_tag = None
285
if self.delete_hook is not None:
286
self.delete_hook(self)
287
288
def render(self, (maxcol,), focus=False):
289
"""Render differently if we have focus.
290
This overrides the method from urwid.FlowWidget"""
291
return self.current_widget(focus).render((maxcol,),
292
focus=focus)
293
294
def keypress(self, (maxcol,), key):
295
"""Handle keys.
296
This overrides the method from urwid.FlowWidget"""
297
if key == u"+":
298
self.proxy.Enable(dbus_interface = client_interface)
299
elif key == u"-":
300
self.proxy.Disable(dbus_interface = client_interface)
301
elif key == u"a":
302
self.proxy.Approve(dbus.Boolean(True, variant_level=1),
303
dbus_interface = client_interface)
304
elif key == u"d":
305
self.proxy.Approve(dbus.Boolean(False, variant_level=1),
306
dbus_interface = client_interface)
307
elif key == u"r" or key == u"_" or key == u"ctrl k":
308
self.server_proxy_object.RemoveClient(self.proxy
309
.object_path)
310
elif key == u"s":
311
self.proxy.StartChecker(dbus_interface = client_interface)
312
elif key == u"S":
313
self.proxy.StopChecker(dbus_interface = client_interface)
314
elif key == u"C":
315
self.proxy.CheckedOK(dbus_interface = client_interface)
316
# xxx
317
# elif key == u"p" or key == "=":
318
# self.proxy.pause()
319
# elif key == u"u" or key == ":":
320
# self.proxy.unpause()
321
# elif key == u"RET":
322
# self.open()
323
# elif key == u"+":
324
# self.proxy.Approve(True)
325
# elif key == u"-":
326
# self.proxy.Approve(False)
327
else:
328
return key
329
330
def property_changed(self, property=None, value=None,
331
*args, **kwargs):
332
"""Call self.update() if old value is not new value.
333
This overrides the method from MandosClientPropertyCache"""
334
property_name = unicode(property)
335
old_value = self.properties.get(property_name)
336
super(MandosClientWidget, self).property_changed(
337
property=property, value=value, *args, **kwargs)
338
if self.properties.get(property_name) != old_value:
339
self.update()
340
341
342
class ConstrainedListBox(urwid.ListBox):
343
"""Like a normal urwid.ListBox, but will consume all "up" or
344
"down" key presses, thus not allowing any containing widgets to
345
use them as an excuse to shift focus away from this widget.
346
"""
347
def keypress(self, (maxcol, maxrow), key):
348
ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
349
if ret in (u"up", u"down"):
350
return
351
return ret
352
353
354
class UserInterface(object):
355
"""This is the entire user interface - the whole screen
356
with boxes, lists of client widgets, etc.
357
"""
358
def __init__(self, max_log_length=1000):
359
DBusGMainLoop(set_as_default=True)
360
361
self.screen = urwid.curses_display.Screen()
362
363
self.screen.register_palette((
364
(u"normal",
365
u"default", u"default", None),
366
(u"bold",
367
u"default", u"default", u"bold"),
368
(u"underline-blink",
369
u"default", u"default", u"underline"),
370
(u"standout",
371
u"default", u"default", u"standout"),
372
(u"bold-underline-blink",
373
u"default", u"default", (u"bold", u"underline")),
374
(u"bold-standout",
375
u"default", u"default", (u"bold", u"standout")),
376
(u"underline-blink-standout",
377
u"default", u"default", (u"underline", u"standout")),
378
(u"bold-underline-blink-standout",
379
u"default", u"default", (u"bold", u"underline",
380
u"standout")),
381
))
382
383
if urwid.supports_unicode():
384
self.divider = u"─" # \u2500
385
#self.divider = u"━" # \u2501
386
else:
387
#self.divider = u"-" # \u002d
388
self.divider = u"_" # \u005f
389
390
self.screen.start()
391
392
self.size = self.screen.get_cols_rows()
393
394
self.clients = urwid.SimpleListWalker([])
395
self.clients_dict = {}
396
397
# We will add Text widgets to this list
398
self.log = []
399
self.max_log_length = max_log_length
400
401
# We keep a reference to the log widget so we can remove it
402
# from the ListWalker without it getting destroyed
403
self.logbox = ConstrainedListBox(self.log)
404
405
# This keeps track of whether self.uilist currently has
406
# self.logbox in it or not
407
self.log_visible = True
408
self.log_wrap = u"any"
409
410
self.rebuild()
411
self.log_message_raw((u"bold",
412
u"Mandos Monitor version " + version))
413
self.log_message_raw((u"bold",
414
u"q: Quit ?: Help"))
415
416
self.busname = domain + '.Mandos'
417
self.main_loop = gobject.MainLoop()
418
self.bus = dbus.SystemBus()
419
mandos_dbus_objc = self.bus.get_object(
420
self.busname, u"/", follow_name_owner_changes=True)
421
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
422
dbus_interface
423
= server_interface)
424
try:
425
mandos_clients = (self.mandos_serv
426
.GetAllClientsWithProperties())
427
except dbus.exceptions.DBusException:
428
mandos_clients = dbus.Dictionary()
429
430
(self.mandos_serv
431
.connect_to_signal(u"ClientRemoved",
432
self.find_and_remove_client,
433
dbus_interface=server_interface,
434
byte_arrays=True))
435
(self.mandos_serv
436
.connect_to_signal(u"ClientAdded",
437
self.add_new_client,
438
dbus_interface=server_interface,
439
byte_arrays=True))
440
(self.mandos_serv
441
.connect_to_signal(u"ClientNotFound",
442
self.client_not_found,
443
dbus_interface=server_interface,
444
byte_arrays=True))
445
for path, client in mandos_clients.iteritems():
446
client_proxy_object = self.bus.get_object(self.busname,
447
path)
448
self.add_client(MandosClientWidget(server_proxy_object
449
=self.mandos_serv,
450
proxy_object
451
=client_proxy_object,
452
properties=client,
453
update_hook
454
=self.refresh,
455
delete_hook
456
=self.remove_client,
457
logger
458
=self.log_message),
459
path=path)
460
461
def client_not_found(self, fingerprint, address):
462
self.log_message((u"Client with address %s and fingerprint %s"
463
u" could not be found" % (address,
464
fingerprint)))
465
466
def rebuild(self):
467
"""This rebuilds the User Interface.
468
Call this when the widget layout needs to change"""
469
self.uilist = []
470
#self.uilist.append(urwid.ListBox(self.clients))
471
self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
472
#header=urwid.Divider(),
473
header=None,
474
footer=urwid.Divider(div_char=self.divider)))
475
if self.log_visible:
476
self.uilist.append(self.logbox)
477
pass
478
self.topwidget = urwid.Pile(self.uilist)
479
480
def log_message(self, message):
481
timestamp = datetime.datetime.now().isoformat()
482
self.log_message_raw(timestamp + u": " + message)
483
484
def log_message_raw(self, markup):
485
"""Add a log message to the log buffer."""
486
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
487
if (self.max_log_length
488
and len(self.log) > self.max_log_length):
489
del self.log[0:len(self.log)-self.max_log_length-1]
490
self.logbox.set_focus(len(self.logbox.body.contents),
491
coming_from=u"above")
492
self.refresh()
493
494
def toggle_log_display(self):
495
"""Toggle visibility of the log buffer."""
496
self.log_visible = not self.log_visible
497
self.rebuild()
498
self.log_message(u"Log visibility changed to: "
499
+ unicode(self.log_visible))
500
501
def change_log_display(self):
502
"""Change type of log display.
503
Currently, this toggles wrapping of text lines."""
504
if self.log_wrap == u"clip":
505
self.log_wrap = u"any"
506
else:
507
self.log_wrap = u"clip"
508
for textwidget in self.log:
509
textwidget.set_wrap_mode(self.log_wrap)
510
self.log_message(u"Wrap mode: " + self.log_wrap)
511
512
def find_and_remove_client(self, path, name):
513
"""Find an client from its object path and remove it.
514
515
This is connected to the ClientRemoved signal from the
516
Mandos server object."""
517
try:
518
client = self.clients_dict[path]
519
except KeyError:
520
# not found?
521
return
522
self.remove_client(client, path)
523
524
def add_new_client(self, path):
525
client_proxy_object = self.bus.get_object(self.busname, path)
526
self.add_client(MandosClientWidget(server_proxy_object
527
=self.mandos_serv,
528
proxy_object
529
=client_proxy_object,
530
update_hook
531
=self.refresh,
532
delete_hook
533
=self.remove_client,
534
logger
535
=self.log_message),
536
path=path)
537
538
def add_client(self, client, path=None):
539
self.clients.append(client)
540
if path is None:
541
path = client.proxy.object_path
542
self.clients_dict[path] = client
543
self.clients.sort(None, lambda c: c.properties[u"name"])
544
self.refresh()
545
546
def remove_client(self, client, path=None):
547
self.clients.remove(client)
548
if path is None:
549
path = client.proxy.object_path
550
del self.clients_dict[path]
551
if not self.clients_dict:
552
# Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
553
# is completely emptied, we need to recreate it.
554
self.clients = urwid.SimpleListWalker([])
555
self.rebuild()
556
self.refresh()
557
558
def refresh(self):
559
"""Redraw the screen"""
560
canvas = self.topwidget.render(self.size, focus=True)
561
self.screen.draw_screen(self.size, canvas)
562
563
def run(self):
564
"""Start the main loop and exit when it's done."""
565
self.refresh()
566
self._input_callback_tag = (gobject.io_add_watch
567
(sys.stdin.fileno(),
568
gobject.IO_IN,
569
self.process_input))
570
self.main_loop.run()
571
# Main loop has finished, we should close everything now
572
gobject.source_remove(self._input_callback_tag)
573
self.screen.stop()
574
575
def stop(self):
576
self.main_loop.quit()
577
578
def process_input(self, source, condition):
579
keys = self.screen.get_input()
580
translations = { u"ctrl n": u"down", # Emacs
581
u"ctrl p": u"up", # Emacs
582
u"ctrl v": u"page down", # Emacs
583
u"meta v": u"page up", # Emacs
584
u" ": u"page down", # less
585
u"f": u"page down", # less
586
u"b": u"page up", # less
587
u"j": u"down", # vi
588
u"k": u"up", # vi
589
}
590
for key in keys:
591
try:
592
key = translations[key]
593
except KeyError: # :-)
594
pass
595
596
if key == u"q" or key == u"Q":
597
self.stop()
598
break
599
elif key == u"window resize":
600
self.size = self.screen.get_cols_rows()
601
self.refresh()
602
elif key == u"\f": # Ctrl-L
603
self.refresh()
604
elif key == u"l" or key == u"D":
605
self.toggle_log_display()
606
self.refresh()
607
elif key == u"w" or key == u"i":
608
self.change_log_display()
609
self.refresh()
610
elif key == u"?" or key == u"f1" or key == u"esc":
611
if not self.log_visible:
612
self.log_visible = True
613
self.rebuild()
614
self.log_message_raw((u"bold",
615
u" ".
616
join((u"q: Quit",
617
u"?: Help",
618
u"l: Log window toggle",
619
u"TAB: Switch window",
620
u"w: Wrap (log)"))))
621
self.log_message_raw((u"bold",
622
u" "
623
.join((u"Clients:",
624
u"+: Enable",
625
u"-: Disable",
626
u"r: Remove",
627
u"s: Start new checker",
628
u"S: Stop checker",
629
u"C: Checker OK",
630
u"a: Approve",
631
u"d: Deny"))))
632
self.refresh()
633
elif key == u"tab":
634
if self.topwidget.get_focus() is self.logbox:
635
self.topwidget.set_focus(0)
636
else:
637
self.topwidget.set_focus(self.logbox)
638
self.refresh()
639
#elif (key == u"end" or key == u"meta >" or key == u"G"
640
# or key == u">"):
641
# pass # xxx end-of-buffer
642
#elif (key == u"home" or key == u"meta <" or key == u"g"
643
# or key == u"<"):
644
# pass # xxx beginning-of-buffer
645
#elif key == u"ctrl e" or key == u"$":
646
# pass # xxx move-end-of-line
647
#elif key == u"ctrl a" or key == u"^":
648
# pass # xxx move-beginning-of-line
649
#elif key == u"ctrl b" or key == u"meta (" or key == u"h":
650
# pass # xxx left
651
#elif key == u"ctrl f" or key == u"meta )" or key == u"l":
652
# pass # xxx right
653
#elif key == u"a":
654
# pass # scroll up log
655
#elif key == u"z":
656
# pass # scroll down log
657
elif self.topwidget.selectable():
658
self.topwidget.keypress(self.size, key)
659
self.refresh()
660
return True
661
662
ui = UserInterface()
663
try:
664
ui.run()
665
except Exception, e:
666
ui.log_message(unicode(e))
667
ui.screen.stop()
668
raise
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0