2
2
# -*- mode: python; coding: utf-8 -*-
4
# Mandos Monitor - Control and monitor the Mandos server
6
# Copyright © 2009-2011 Teddy Hogeborn
7
# Copyright © 2009-2011 Björn Påhlsson
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.
14
# 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.
19
# You should have received a copy of the GNU General Public License
20
# along with this program. If not, see <http://www.gnu.org/licenses/>.
22
# Contact the authors at <mandos@fukt.bsnet.se>.
25
from __future__ import (division, absolute_import, print_function,
4
from __future__ import division, absolute_import, with_statement
34
9
import urwid.curses_display
62
30
urwid.curses_display.curses.A_UNDERLINE |= (
63
31
urwid.curses_display.curses.A_BLINK)
65
def isoformat_to_datetime(iso):
66
"Parse an ISO 8601 date string to a datetime.datetime()"
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),
78
int(second), # Whole seconds
79
int(fraction*1000000)) # Microseconds
81
33
class MandosClientPropertyCache(object):
82
34
"""This wraps a Mandos Client D-Bus proxy object, caches the
83
35
properties and calls a hook function when any of them are
86
def __init__(self, proxy_object=None, *args, **kwargs):
38
def __init__(self, proxy_object=None, properties=None, *args,
87
40
self.proxy = proxy_object # Mandos Client proxy object
89
self.properties = dict()
90
self.property_changed_match = (
91
self.proxy.connect_to_signal("PropertyChanged",
92
self.property_changed,
42
if properties is None:
43
self.properties = dict()
45
self.properties = properties
46
self.proxy.connect_to_signal("PropertyChanged",
47
self.property_changed,
96
self.properties.update(
97
self.proxy.GetAll(client_interface,
98
dbus_interface = dbus.PROPERTIES_IFACE))
100
#XXX This breaks good super behaviour
101
# super(MandosClientPropertyCache, self).__init__(
51
if properties is None:
52
self.properties.update(self.proxy.GetAll(client_interface,
54
dbus.PROPERTIES_IFACE))
55
super(MandosClientPropertyCache, self).__init__(
56
proxy_object=proxy_object,
57
properties=properties, *args, **kwargs)
104
59
def property_changed(self, property=None, value=None):
105
60
"""This is called whenever we get a PropertyChanged signal
121
71
def __init__(self, server_proxy_object=None, update_hook=None,
122
delete_hook=None, logger=None, *args, **kwargs):
72
delete_hook=None, *args, **kwargs):
123
73
# Called on update
124
74
self.update_hook = update_hook
125
75
# Called on delete
126
76
self.delete_hook = delete_hook
127
77
# Mandos Server proxy object
128
78
self.server_proxy_object = server_proxy_object
132
self._update_timer_callback_tag = None
133
self._update_timer_callback_lock = 0
134
self.last_checker_failed = False
136
80
# The widget shown normally
137
81
self._text_widget = urwid.Text("")
144
88
self.opened = False
146
last_checked_ok = isoformat_to_datetime(self.properties
148
if last_checked_ok is None:
149
self.last_checker_failed = True
151
self.last_checker_failed = ((datetime.datetime.utcnow()
158
if self.last_checker_failed:
159
self.using_timer(True)
161
if self.need_approval:
162
self.using_timer(True)
164
self.match_objects = (
165
self.proxy.connect_to_signal("CheckerCompleted",
166
self.checker_completed,
169
self.proxy.connect_to_signal("CheckerStarted",
170
self.checker_started,
173
self.proxy.connect_to_signal("GotSecret",
177
self.proxy.connect_to_signal("NeedApproval",
181
self.proxy.connect_to_signal("Rejected",
185
#self.logger('Created client %s' % (self.properties["Name"]))
187
def property_changed(self, property=None, value=None):
188
super(self, MandosClientWidget).property_changed(property,
190
if property == "ApprovalPending":
191
using_timer(bool(value))
193
def using_timer(self, flag):
194
"""Call this method with True or False when timer should be
195
activated or deactivated.
197
old = self._update_timer_callback_lock
199
self._update_timer_callback_lock += 1
201
self._update_timer_callback_lock -= 1
202
if old == 0 and self._update_timer_callback_lock:
203
# Will update the shown timer value every second
204
self._update_timer_callback_tag = (gobject.timeout_add
207
elif old and self._update_timer_callback_lock == 0:
208
gobject.source_remove(self._update_timer_callback_tag)
209
self._update_timer_callback_tag = None
211
def checker_completed(self, exitstatus, condition, command):
213
if self.last_checker_failed:
214
self.last_checker_failed = False
215
self.using_timer(False)
216
#self.logger('Checker for client %s (command "%s")'
218
# % (self.properties["Name"], command))
222
if not self.last_checker_failed:
223
self.last_checker_failed = True
224
self.using_timer(True)
225
if os.WIFEXITED(condition):
226
self.logger('Checker for client %s (command "%s")'
227
' failed with exit code %s'
228
% (self.properties["Name"], command,
229
os.WEXITSTATUS(condition)))
230
elif os.WIFSIGNALED(condition):
231
self.logger('Checker for client %s (command "%s")'
232
' was killed by signal %s'
233
% (self.properties["Name"], command,
234
os.WTERMSIG(condition)))
235
elif os.WCOREDUMP(condition):
236
self.logger('Checker for client %s (command "%s")'
238
% (self.properties["Name"], command))
240
self.logger('Checker for client %s completed'
244
def checker_started(self, command):
245
#self.logger('Client %s started checker "%s"'
246
# % (self.properties["Name"], unicode(command)))
249
def got_secret(self):
250
self.last_checker_failed = False
251
self.logger('Client %s received its secret'
252
% self.properties["Name"])
254
def need_approval(self, timeout, default):
256
message = 'Client %s needs approval within %s seconds'
258
message = 'Client %s will get its secret in %s seconds'
260
% (self.properties["Name"], timeout/1000))
261
self.using_timer(True)
263
def rejected(self, reason):
264
self.logger('Client %s was rejected; reason: %s'
265
% (self.properties["Name"], reason))
267
90
def selectable(self):
268
91
"""Make this a "selectable" widget.
269
92
This overrides the method from urwid.FlowWidget."""
272
def rows(self, maxcolrow, focus=False):
95
def rows(self, (maxcol,), focus=False):
273
96
"""How many rows this widget will occupy might depend on
274
97
whether we have focus or not.
275
98
This overrides the method from urwid.FlowWidget"""
276
return self.current_widget(focus).rows(maxcolrow, focus=focus)
99
return self.current_widget(focus).rows((maxcol,), focus=focus)
278
101
def current_widget(self, focus=False):
279
102
if focus or self.opened:
283
106
def update(self):
284
107
"Called when what is visible on the screen should be updated."
285
108
# How to add standout mode to a style
286
with_standout = { "normal": "standout",
287
"bold": "bold-standout",
289
"underline-blink-standout",
290
"bold-underline-blink":
291
"bold-underline-blink-standout",
109
with_standout = { u"normal": u"standout",
110
u"bold": u"bold-standout",
112
u"underline-blink-standout",
113
u"bold-underline-blink":
114
u"bold-underline-blink-standout",
294
117
# Rebuild focus and non-focus widgets using current properties
296
# Base part of a client. Name!
298
% {"name": self.properties["Name"]})
299
if not self.properties["Enabled"]:
301
elif self.properties["ApprovalPending"]:
302
timeout = datetime.timedelta(milliseconds
305
last_approval_request = isoformat_to_datetime(
306
self.properties["LastApprovalRequest"])
307
if last_approval_request is not None:
308
timer = timeout - (datetime.datetime.utcnow()
309
- last_approval_request)
311
timer = datetime.timedelta()
312
if self.properties["ApprovedByDefault"]:
313
message = "Approval in %s. (d)eny?"
315
message = "Denial in %s. (a)pprove?"
316
message = message % unicode(timer).rsplit(".", 1)[0]
317
elif self.last_checker_failed:
318
# When checker has failed, print a timer until client expires
319
expires = self.properties["Expires"]
321
timer = datetime.timedelta(0)
323
expires = datetime.datetime.strptime(expires,
324
'%Y-%m-%dT%H:%M:%S.%f')
325
timer = expires - datetime.datetime.utcnow()
326
message = ('A checker has failed! Time until client'
328
% unicode(timer).rsplit(".", 1)[0])
331
self._text = "%s%s" % (base, message)
118
self._text = (u'name="%(name)s", enabled=%(enabled)s'
333
120
if not urwid.supports_unicode():
334
121
self._text = self._text.encode("ascii", "replace")
335
textlist = [("normal", self._text)]
122
textlist = [(u"normal", u"BLARGH: "), (u"bold", self._text)]
336
123
self._text_widget.set_text(textlist)
337
124
self._focus_text_widget.set_text([(with_standout[text[0]],
346
133
if self.update_hook is not None:
347
134
self.update_hook()
349
def update_timer(self):
350
"""called by gobject. Will indefinitely loop until
351
gobject.source_remove() on tag is called"""
353
return True # Keep calling this
355
def delete(self, *args, **kwargs):
356
if self._update_timer_callback_tag is not None:
357
gobject.source_remove(self._update_timer_callback_tag)
358
self._update_timer_callback_tag = None
359
for match in self.match_objects:
361
self.match_objects = ()
362
137
if self.delete_hook is not None:
363
138
self.delete_hook(self)
364
return super(MandosClientWidget, self).delete(*args, **kwargs)
366
def render(self, maxcolrow, focus=False):
140
def render(self, (maxcol,), focus=False):
367
141
"""Render differently if we have focus.
368
142
This overrides the method from urwid.FlowWidget"""
369
return self.current_widget(focus).render(maxcolrow,
143
return self.current_widget(focus).render((maxcol,),
372
def keypress(self, maxcolrow, key):
146
def keypress(self, (maxcol,), key):
374
148
This overrides the method from urwid.FlowWidget"""
376
self.proxy.Enable(dbus_interface = client_interface,
379
self.proxy.Disable(dbus_interface = client_interface,
382
self.proxy.Approve(dbus.Boolean(True, variant_level=1),
383
dbus_interface = client_interface,
386
self.proxy.Approve(dbus.Boolean(False, variant_level=1),
387
dbus_interface = client_interface,
389
elif key == "R" or key == "_" or key == "ctrl k":
149
if key == u"e" or key == u"+":
151
elif key == u"d" or key == u"-":
153
elif key == u"r" or key == u"_":
390
154
self.server_proxy_object.RemoveClient(self.proxy
394
self.proxy.StartChecker(dbus_interface = client_interface,
397
self.proxy.StopChecker(dbus_interface = client_interface,
400
self.proxy.CheckedOK(dbus_interface = client_interface,
157
self.proxy.StartChecker()
159
self.proxy.StopChecker()
161
self.proxy.CheckedOK()
403
# elif key == "p" or key == "=":
163
# elif key == u"p" or key == "=":
404
164
# self.proxy.pause()
405
# elif key == "u" or key == ":":
165
# elif key == u"u" or key == ":":
406
166
# self.proxy.unpause()
167
# elif key == u"RET":
426
186
"down" key presses, thus not allowing any containing widgets to
427
187
use them as an excuse to shift focus away from this widget.
429
def keypress(self, maxcolrow, key):
430
ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
431
if ret in ("up", "down"):
189
def keypress(self, (maxcol, maxrow), key):
190
ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
191
if ret in (u"up", u"down"):
443
203
self.screen = urwid.curses_display.Screen()
445
205
self.screen.register_palette((
447
"default", "default", None),
449
"default", "default", "bold"),
451
"default", "default", "underline"),
453
"default", "default", "standout"),
454
("bold-underline-blink",
455
"default", "default", ("bold", "underline")),
457
"default", "default", ("bold", "standout")),
458
("underline-blink-standout",
459
"default", "default", ("underline", "standout")),
460
("bold-underline-blink-standout",
461
"default", "default", ("bold", "underline",
207
u"default", u"default", None),
209
u"default", u"default", u"bold"),
211
u"default", u"default", u"underline"),
213
u"default", u"default", u"standout"),
214
(u"bold-underline-blink",
215
u"default", u"default", (u"bold", u"underline")),
217
u"default", u"default", (u"bold", u"standout")),
218
(u"underline-blink-standout",
219
u"default", u"default", (u"underline", u"standout")),
220
(u"bold-underline-blink-standout",
221
u"default", u"default", (u"bold", u"underline",
465
225
if urwid.supports_unicode():
466
self.divider = "─" # \u2500
467
#self.divider = "━" # \u2501
226
#self.divider = u"─" # \u2500
227
self.divider = u"━" # \u2501
469
#self.divider = "-" # \u002d
470
self.divider = "_" # \u005f
229
#self.divider = u"-" # \u002d
230
self.divider = u"_" # \u005f
472
232
self.screen.start()
487
247
# This keeps track of whether self.uilist currently has
488
248
# self.logbox in it or not
489
249
self.log_visible = True
490
self.log_wrap = "any"
250
self.log_wrap = u"any"
493
self.log_message_raw(("bold",
494
"Mandos Monitor version " + version))
495
self.log_message_raw(("bold",
253
self.log_message(u"Message")
254
self.log_message(u"Message0 Message1 Message2 Message3 Message4 Message5 Message6 Message7 Message8 Message9")
255
self.log_message(u"Message10 Message11 Message12 Message13 Message14 Message15 Message16 Message17 Message18 Message19")
256
self.log_message(u"Message20 Message21 Message22 Message23 Message24 Message25 Message26 Message27 Message28 Message29")
498
258
self.busname = domain + '.Mandos'
499
259
self.main_loop = gobject.MainLoop()
500
260
self.bus = dbus.SystemBus()
501
261
mandos_dbus_objc = self.bus.get_object(
502
self.busname, "/", follow_name_owner_changes=True)
262
self.busname, u"/", follow_name_owner_changes=True)
503
263
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
505
265
= server_interface)
293
=self.remove_client),
543
def client_not_found(self, fingerprint, address):
544
self.log_message(("Client with address %s and fingerprint %s"
545
" could not be found" % (address,
548
296
def rebuild(self):
549
297
"""This rebuilds the User Interface.
550
298
Call this when the widget layout needs to change"""
552
300
#self.uilist.append(urwid.ListBox(self.clients))
553
self.uilist.append(urwid.Frame(ConstrainedListBox(self.
301
self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
555
302
#header=urwid.Divider(),
558
urwid.Divider(div_char=
304
footer=urwid.Divider(div_char=self.divider)))
560
305
if self.log_visible:
561
306
self.uilist.append(self.logbox)
563
308
self.topwidget = urwid.Pile(self.uilist)
565
def log_message(self, message):
566
timestamp = datetime.datetime.now().isoformat()
567
self.log_message_raw(timestamp + ": " + message)
569
def log_message_raw(self, markup):
310
def log_message(self, markup):
570
311
"""Add a log message to the log buffer."""
571
312
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
572
313
if (self.max_log_length
573
314
and len(self.log) > self.max_log_length):
574
315
del self.log[0:len(self.log)-self.max_log_length-1]
575
self.logbox.set_focus(len(self.logbox.body.contents),
579
317
def toggle_log_display(self):
580
318
"""Toggle visibility of the log buffer."""
581
319
self.log_visible = not self.log_visible
583
#self.log_message("Log visibility changed to: "
584
# + unicode(self.log_visible))
321
self.log_message(u"Log visibility changed to: "
322
+ unicode(self.log_visible))
586
324
def change_log_display(self):
587
325
"""Change type of log display.
588
326
Currently, this toggles wrapping of text lines."""
589
if self.log_wrap == "clip":
590
self.log_wrap = "any"
327
if self.log_wrap == u"clip":
328
self.log_wrap = u"any"
592
self.log_wrap = "clip"
330
self.log_wrap = u"clip"
593
331
for textwidget in self.log:
594
332
textwidget.set_wrap_mode(self.log_wrap)
595
#self.log_message("Wrap mode: " + self.log_wrap)
333
self.log_message(u"Wrap mode: " + self.log_wrap)
597
335
def find_and_remove_client(self, path, name):
598
"""Find a client by its object path and remove it.
336
"""Find an client from its object path and remove it.
600
338
This is connected to the ClientRemoved signal from the
601
339
Mandos server object."""
665
400
def process_input(self, source, condition):
666
401
keys = self.screen.get_input()
667
translations = { "ctrl n": "down", # Emacs
668
"ctrl p": "up", # Emacs
669
"ctrl v": "page down", # Emacs
670
"meta v": "page up", # Emacs
671
" ": "page down", # less
672
"f": "page down", # less
673
"b": "page up", # less
402
translations = { u"ctrl n": u"down", # Emacs
403
u"ctrl p": u"up", # Emacs
404
u"ctrl v": u"page down", # Emacs
405
u"meta v": u"page up", # Emacs
406
u" ": u"page down", # less
407
u"f": u"page down", # less
408
u"b": u"page up", # less
680
415
except KeyError: # :-)
683
if key == "q" or key == "Q":
418
if key == u"q" or key == u"Q":
686
elif key == "window resize":
421
elif key == u"window resize":
687
422
self.size = self.screen.get_cols_rows()
689
elif key == "\f": # Ctrl-L
424
elif key == u"\f": # Ctrl-L
691
elif key == "l" or key == "D":
426
elif key == u"l" or key == u"D":
692
427
self.toggle_log_display()
694
elif key == "w" or key == "i":
429
elif key == u"w" or key == u"i":
695
430
self.change_log_display()
697
elif key == "?" or key == "f1" or key == "esc":
698
if not self.log_visible:
699
self.log_visible = True
701
self.log_message_raw(("bold",
705
"l: Log window toggle",
706
"TAB: Switch window",
708
self.log_message_raw(("bold",
714
"s: Start new checker",
432
elif key == u"?" or key == u"f1":
433
self.log_message(u"Help!")
721
436
if self.topwidget.get_focus() is self.logbox:
722
437
self.topwidget.set_focus(0)
724
439
self.topwidget.set_focus(self.logbox)
726
#elif (key == "end" or key == "meta >" or key == "G"
728
# pass # xxx end-of-buffer
729
#elif (key == "home" or key == "meta <" or key == "g"
731
# pass # xxx beginning-of-buffer
732
#elif key == "ctrl e" or key == "$":
733
# pass # xxx move-end-of-line
734
#elif key == "ctrl a" or key == "^":
735
# pass # xxx move-beginning-of-line
736
#elif key == "ctrl b" or key == "meta (" or key == "h":
738
#elif key == "ctrl f" or key == "meta )" or key == "l":
741
# pass # scroll up log
743
# pass # scroll down log
441
elif (key == u"end" or key == u"meta >" or key == u"G"
443
pass # xxx end-of-buffer
444
elif (key == u"home" or key == u"meta <" or key == u"g"
446
pass # xxx beginning-of-buffer
447
elif key == u"ctrl e" or key == u"$":
448
pass # xxx move-end-of-line
449
elif key == u"ctrl a" or key == u"^":
450
pass # xxx move-beginning-of-line
451
elif key == u"ctrl b" or key == u"meta (" or key == u"h":
453
elif key == u"ctrl f" or key == u"meta )" or key == u"l":
458
pass # scroll down log
744
459
elif self.topwidget.selectable():
745
460
self.topwidget.keypress(self.size, key)