2
2
# -*- mode: python; coding: utf-8 -*-
4
# Mandos Monitor - Control and monitor the Mandos server
6
# Copyright © 2009-2015 Teddy Hogeborn
7
# Copyright © 2009-2015 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
21
# <http://www.gnu.org/licenses/>.
23
# Contact the authors at <mandos@recompile.se>.
26
from __future__ import (division, absolute_import, print_function,
29
from future_builtins import *
4
from __future__ import division, absolute_import, with_statement
41
15
from dbus.mainloop.glib import DBusGMainLoop
45
from gi.repository import GObject as gobject
51
if sys.version_info.major == 2:
54
locale.setlocale(locale.LC_ALL, '')
24
locale.setlocale(locale.LC_ALL, u'')
57
27
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
59
29
# Some useful constants
60
domain = 'se.recompile'
30
domain = 'se.bsnet.fukt'
61
31
server_interface = domain + '.Mandos'
62
32
client_interface = domain + '.Mandos.Client'
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
35
# Always run in monochrome mode
36
urwid.curses_display.curses.has_colors = lambda : False
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)
81
43
class MandosClientPropertyCache(object):
82
44
"""This wraps a Mandos Client D-Bus proxy object, caches the
83
45
properties and calls a hook function when any of them are
86
def __init__(self, proxy_object=None, properties=None, **kwargs):
48
def __init__(self, proxy_object=None, *args, **kwargs):
87
49
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("PropertiesChanged",
91
self.properties_changed,
92
dbus.PROPERTIES_IFACE,
95
if properties is None:
96
self.properties.update(
97
self.proxy.GetAll(client_interface,
99
= dbus.PROPERTIES_IFACE))
101
super(MandosClientPropertyCache, self).__init__(**kwargs)
51
self.properties = dict()
52
self.proxy.connect_to_signal(u"PropertyChanged",
53
self.property_changed,
57
self.properties.update(
58
self.proxy.GetAll(client_interface,
59
dbus_interface = dbus.PROPERTIES_IFACE))
60
super(MandosClientPropertyCache, self).__init__(
103
def properties_changed(self, interface, properties, invalidated):
104
"""This is called whenever we get a PropertiesChanged signal
105
It updates the changed properties in the "properties" dict.
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.
107
67
# Update properties dict with new value
108
self.properties.update(properties)
111
self.property_changed_match.remove()
68
self.properties[property] = value
114
71
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
127
84
self.logger = logger
129
self._update_timer_callback_tag = None
131
86
# The widget shown normally
132
self._text_widget = urwid.Text("")
87
self._text_widget = urwid.Text(u"")
133
88
# The widget shown when we have focus
134
self._focus_text_widget = urwid.Text("")
135
super(MandosClientWidget, self).__init__(**kwargs)
89
self._focus_text_widget = urwid.Text(u"")
90
super(MandosClientWidget, self).__init__(
91
update_hook=update_hook, delete_hook=delete_hook,
137
94
self.opened = False
139
self.match_objects = (
140
self.proxy.connect_to_signal("CheckerCompleted",
141
self.checker_completed,
144
self.proxy.connect_to_signal("CheckerStarted",
145
self.checker_started,
148
self.proxy.connect_to_signal("GotSecret",
152
self.proxy.connect_to_signal("NeedApproval",
156
self.proxy.connect_to_signal("Rejected",
160
self.logger('Created client {}'
161
.format(self.properties["Name"]), level=0)
163
def using_timer(self, flag):
164
"""Call this method with True or False when timer should be
165
activated or deactivated.
167
if flag and self._update_timer_callback_tag is None:
168
# Will update the shown timer value every second
169
self._update_timer_callback_tag = (gobject.timeout_add
172
elif not (flag or self._update_timer_callback_tag is None):
173
gobject.source_remove(self._update_timer_callback_tag)
174
self._update_timer_callback_tag = None
176
def checker_completed(self, exitstatus, signal, command):
95
self.proxy.connect_to_signal(u"CheckerCompleted",
96
self.checker_completed,
99
self.proxy.connect_to_signal(u"CheckerStarted",
100
self.checker_started,
103
self.proxy.connect_to_signal(u"GotSecret",
107
self.proxy.connect_to_signal(u"NeedApproval",
111
self.proxy.connect_to_signal(u"Rejected",
116
def checker_completed(self, exitstatus, condition, command):
177
117
if exitstatus == 0:
178
self.logger('Checker for client {} (command "{}")'
179
' succeeded'.format(self.properties["Name"],
185
self.logger('Checker for client {} (command "{}") failed'
187
.format(self.properties["Name"], command,
190
self.logger('Checker for client {} (command "{}") was'
191
' killed by signal {}'
192
.format(self.properties["Name"], command,
195
self.logger('Checker for client {} completed'
197
.format(self.properties["Name"]))
118
#self.logger(u'Checker for client %s (command "%s")'
120
# % (self.properties[u"name"], command))
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)))
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)))
134
if os.WCOREDUMP(condition):
135
self.logger(u'Checker for client %s (command "%s")'
137
% (self.properties[u"name"], command))
138
self.logger(u'Checker for client %s completed mysteriously')
200
140
def checker_started(self, command):
201
"""Server signals that a checker started."""
202
self.logger('Client {} started checker "{}"'
203
.format(self.properties["Name"],
141
#self.logger(u'Client %s started checker "%s"'
142
# % (self.properties[u"name"], unicode(command)))
206
145
def got_secret(self):
207
self.logger('Client {} received its secret'
208
.format(self.properties["Name"]))
146
self.logger(u'Client %s received its secret'
147
% self.properties[u"name"])
210
149
def need_approval(self, timeout, default):
212
message = 'Client {} needs approval within {} seconds'
151
message = u'Client %s needs approval within %s seconds'
214
message = 'Client {} will get its secret in {} seconds'
215
self.logger(message.format(self.properties["Name"],
153
message = u'Client %s will get its secret in %s seconds'
155
% (self.properties[u"name"], timeout/1000))
218
157
def rejected(self, reason):
219
self.logger('Client {} was rejected; reason: {}'
220
.format(self.properties["Name"], reason))
158
self.logger(u'Client %s was rejected; reason: %s'
159
% (self.properties[u"name"], reason))
222
161
def selectable(self):
223
162
"""Make this a "selectable" widget.
224
163
This overrides the method from urwid.FlowWidget."""
227
def rows(self, maxcolrow, focus=False):
166
def rows(self, (maxcol,), focus=False):
228
167
"""How many rows this widget will occupy might depend on
229
168
whether we have focus or not.
230
169
This overrides the method from urwid.FlowWidget"""
231
return self.current_widget(focus).rows(maxcolrow, focus=focus)
170
return self.current_widget(focus).rows((maxcol,), focus=focus)
233
172
def current_widget(self, focus=False):
234
173
if focus or self.opened:
238
177
def update(self):
239
178
"Called when what is visible on the screen should be updated."
240
179
# How to add standout mode to a style
241
with_standout = { "normal": "standout",
242
"bold": "bold-standout",
244
"underline-blink-standout",
245
"bold-underline-blink":
246
"bold-underline-blink-standout",
180
with_standout = { u"normal": u"standout",
181
u"bold": u"bold-standout",
183
u"underline-blink-standout",
184
u"bold-underline-blink":
185
u"bold-underline-blink-standout",
249
188
# Rebuild focus and non-focus widgets using current properties
251
# Base part of a client. Name!
252
base = '{name}: '.format(name=self.properties["Name"])
253
if not self.properties["Enabled"]:
255
self.using_timer(False)
256
elif self.properties["ApprovalPending"]:
257
timeout = datetime.timedelta(milliseconds
260
last_approval_request = isoformat_to_datetime(
261
self.properties["LastApprovalRequest"])
262
if last_approval_request is not None:
263
timer = max(timeout - (datetime.datetime.utcnow()
264
- last_approval_request),
265
datetime.timedelta())
267
timer = datetime.timedelta()
268
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())
284
message = ('A checker has failed! Time until client'
286
.format(str(timer).rsplit(".", 1)[0]))
287
self.using_timer(True)
290
self.using_timer(False)
291
self._text = "{}{}".format(base, message)
189
self._text = (u'%(name)s: %(enabled)s'
190
% { u"name": self.properties[u"name"],
193
if self.properties[u"enabled"]
293
195
if not urwid.supports_unicode():
294
196
self._text = self._text.encode("ascii", "replace")
295
textlist = [("normal", self._text)]
197
textlist = [(u"normal", self._text)]
296
198
self._text_widget.set_text(textlist)
297
199
self._focus_text_widget.set_text([(with_standout[text[0]],
306
208
if self.update_hook is not None:
307
209
self.update_hook()
309
def update_timer(self):
310
"""called by gobject. Will indefinitely loop until
311
gobject.source_remove() on tag is called"""
313
return True # Keep calling this
315
def delete(self, **kwargs):
316
if self._update_timer_callback_tag is not None:
317
gobject.source_remove(self._update_timer_callback_tag)
318
self._update_timer_callback_tag = None
319
for match in self.match_objects:
321
self.match_objects = ()
322
212
if self.delete_hook is not None:
323
213
self.delete_hook(self)
324
return super(MandosClientWidget, self).delete(**kwargs)
326
def render(self, maxcolrow, focus=False):
215
def render(self, (maxcol,), focus=False):
327
216
"""Render differently if we have focus.
328
217
This overrides the method from urwid.FlowWidget"""
329
return self.current_widget(focus).render(maxcolrow,
218
return self.current_widget(focus).render((maxcol,),
332
def keypress(self, maxcolrow, key):
221
def keypress(self, (maxcol,), key):
334
223
This overrides the method from urwid.FlowWidget"""
336
self.proxy.Set(client_interface, "Enabled",
337
dbus.Boolean(True), ignore_reply = True,
338
dbus_interface = dbus.PROPERTIES_IFACE)
340
self.proxy.Set(client_interface, "Enabled", False,
342
dbus_interface = dbus.PROPERTIES_IFACE)
344
self.proxy.Approve(dbus.Boolean(True, variant_level=1),
345
dbus_interface = client_interface,
348
self.proxy.Approve(dbus.Boolean(False, variant_level=1),
349
dbus_interface = client_interface,
351
elif key == "R" or key == "_" or key == "ctrl k":
224
if key == u"e" or key == u"+":
226
elif key == u"d" or key == u"-":
228
elif key == u"r" or key == u"_" or key == u"ctrl k":
352
229
self.server_proxy_object.RemoveClient(self.proxy
356
self.proxy.Set(client_interface, "CheckerRunning",
357
dbus.Boolean(True), ignore_reply = True,
358
dbus_interface = dbus.PROPERTIES_IFACE)
360
self.proxy.Set(client_interface, "CheckerRunning",
361
dbus.Boolean(False), ignore_reply = True,
362
dbus_interface = dbus.PROPERTIES_IFACE)
364
self.proxy.CheckedOK(dbus_interface = client_interface,
232
self.proxy.StartChecker()
234
self.proxy.StopChecker()
236
self.proxy.CheckedOK()
367
# elif key == "p" or key == "=":
238
# elif key == u"p" or key == "=":
368
239
# self.proxy.pause()
369
# elif key == "u" or key == ":":
240
# elif key == u"u" or key == ":":
370
241
# self.proxy.unpause()
242
# elif key == u"RET":
245
self.proxy.Approve(True)
247
self.proxy.Approve(False)
376
def properties_changed(self, interface, properties, invalidated):
377
"""Call self.update() if any properties changed.
251
def property_changed(self, property=None, value=None,
253
"""Call self.update() if old value is not new value.
378
254
This overrides the method from MandosClientPropertyCache"""
379
old_values = { key: self.properties.get(key)
380
for key in properties.keys() }
381
super(MandosClientWidget, self).properties_changed(
382
interface, properties, invalidated)
383
if any(old_values[key] != self.properties.get(key)
384
for key in old_values):
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:
401
276
"""This is the entire user interface - the whole screen
402
277
with boxes, lists of client widgets, etc.
404
def __init__(self, max_log_length=1000, log_level=1):
279
def __init__(self, max_log_length=1000):
405
280
DBusGMainLoop(set_as_default=True)
407
282
self.screen = urwid.curses_display.Screen()
409
284
self.screen.register_palette((
411
"default", "default", None),
413
"bold", "default", "bold"),
415
"underline,blink", "default", "underline,blink"),
417
"standout", "default", "standout"),
418
("bold-underline-blink",
419
"bold,underline,blink", "default", "bold,underline,blink"),
421
"bold,standout", "default", "bold,standout"),
422
("underline-blink-standout",
423
"underline,blink,standout", "default",
424
"underline,blink,standout"),
425
("bold-underline-blink-standout",
426
"bold,underline,blink,standout", "default",
427
"bold,underline,blink,standout"),
286
u"default", u"default", None),
288
u"default", u"default", u"bold"),
290
u"default", u"default", u"underline"),
292
u"default", u"default", u"standout"),
293
(u"bold-underline-blink",
294
u"default", u"default", (u"bold", u"underline")),
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",
430
304
if urwid.supports_unicode():
431
self.divider = "─" # \u2500
432
#self.divider = "━" # \u2501
305
self.divider = u"─" # \u2500
306
#self.divider = u"━" # \u2501
434
#self.divider = "-" # \u002d
435
self.divider = "_" # \u005f
308
#self.divider = u"-" # \u002d
309
self.divider = u"_" # \u005f
437
311
self.screen.start()
454
326
# This keeps track of whether self.uilist currently has
455
327
# self.logbox in it or not
456
328
self.log_visible = True
457
self.log_wrap = "any"
329
self.log_wrap = u"any"
460
self.log_message_raw(("bold",
461
"Mandos Monitor version " + version))
462
self.log_message_raw(("bold",
332
self.log_message_raw((u"bold",
333
u"Mandos Monitor version " + version))
334
self.log_message_raw((u"bold",
465
337
self.busname = domain + '.Mandos'
466
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,
346
mandos_clients = (self.mandos_serv
347
.GetAllClientsWithProperties())
348
except dbus.exceptions.DBusException:
349
mandos_clients = dbus.Dictionary()
352
.connect_to_signal(u"ClientRemoved",
353
self.find_and_remove_client,
354
dbus_interface=server_interface,
357
.connect_to_signal(u"ClientAdded",
359
dbus_interface=server_interface,
362
.connect_to_signal(u"ClientNotFound",
363
self.client_not_found,
364
dbus_interface=server_interface,
366
for path, client in mandos_clients.iteritems():
367
client_proxy_object = self.bus.get_object(self.busname,
369
self.add_client(MandosClientWidget(server_proxy_object
372
=client_proxy_object,
468
382
def client_not_found(self, fingerprint, address):
469
self.log_message("Client with address {} and fingerprint {}"
470
" could not be found"
471
.format(address, fingerprint))
383
self.log_message((u"Client with address %s and fingerprint %s"
384
u" could not be found" % (address,
473
387
def rebuild(self):
474
388
"""This rebuilds the User Interface.
475
389
Call this when the widget layout needs to change"""
477
391
#self.uilist.append(urwid.ListBox(self.clients))
478
self.uilist.append(urwid.Frame(ConstrainedListBox(self.
392
self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
480
393
#header=urwid.Divider(),
483
urwid.Divider(div_char=
395
footer=urwid.Divider(div_char=self.divider)))
485
396
if self.log_visible:
486
397
self.uilist.append(self.logbox)
487
399
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:
401
def log_message(self, message):
493
402
timestamp = datetime.datetime.now().isoformat()
494
self.log_message_raw("{}: {}".format(timestamp, message),
403
self.log_message_raw(timestamp + u": " + message)
497
def log_message_raw(self, markup, level=1):
405
def log_message_raw(self, markup):
498
406
"""Add a log message to the log buffer."""
499
if level < self.log_level:
501
407
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
502
408
if (self.max_log_length
503
409
and len(self.log) > self.max_log_length):
504
410
del self.log[0:len(self.log)-self.max_log_length-1]
505
411
self.logbox.set_focus(len(self.logbox.body.contents),
412
coming_from=u"above")
509
415
def toggle_log_display(self):
510
416
"""Toggle visibility of the log buffer."""
511
417
self.log_visible = not self.log_visible
513
self.log_message("Log visibility changed to: {}"
514
.format(self.log_visible), level=0)
419
self.log_message(u"Log visibility changed to: "
420
+ unicode(self.log_visible))
516
422
def change_log_display(self):
517
423
"""Change type of log display.
518
424
Currently, this toggles wrapping of text lines."""
519
if self.log_wrap == "clip":
520
self.log_wrap = "any"
425
if self.log_wrap == u"clip":
426
self.log_wrap = u"any"
522
self.log_wrap = "clip"
428
self.log_wrap = u"clip"
523
429
for textwidget in self.log:
524
430
textwidget.set_wrap_mode(self.log_wrap)
525
self.log_message("Wrap mode: {}".format(self.log_wrap),
431
self.log_message(u"Wrap mode: " + self.log_wrap)
528
433
def find_and_remove_client(self, path, name):
529
"""Find a client by its object path and remove it.
434
"""Find an client from its object path and remove it.
531
436
This is connected to the ClientRemoved signal from the
532
437
Mandos server object."""
577
485
"""Start the main loop and exit when it's done."""
578
self.bus = dbus.SystemBus()
579
mandos_dbus_objc = self.bus.get_object(
580
self.busname, "/", follow_name_owner_changes=True)
581
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
585
mandos_clients = (self.mandos_serv
586
.GetAllClientsWithProperties())
587
if not mandos_clients:
588
self.log_message_raw(("bold", "Note: Server has no clients."))
589
except dbus.exceptions.DBusException:
590
self.log_message_raw(("bold", "Note: No Mandos server running."))
591
mandos_clients = dbus.Dictionary()
594
.connect_to_signal("ClientRemoved",
595
self.find_and_remove_client,
596
dbus_interface=server_interface,
599
.connect_to_signal("ClientAdded",
601
dbus_interface=server_interface,
604
.connect_to_signal("ClientNotFound",
605
self.client_not_found,
606
dbus_interface=server_interface,
608
for path, client in mandos_clients.items():
609
client_proxy_object = self.bus.get_object(self.busname,
611
self.add_client(MandosClientWidget(server_proxy_object
614
=client_proxy_object,
625
487
self._input_callback_tag = (gobject.io_add_watch
626
488
(sys.stdin.fileno(),
652
514
except KeyError: # :-)
655
if key == "q" or key == "Q":
517
if key == u"q" or key == u"Q":
658
elif key == "window resize":
520
elif key == u"window resize":
659
521
self.size = self.screen.get_cols_rows()
661
elif key == "ctrl l":
523
elif key == u"\f": # Ctrl-L
664
elif key == "l" or key == "D":
525
elif key == u"l" or key == u"D":
665
526
self.toggle_log_display()
667
elif key == "w" or key == "i":
528
elif key == u"w" or key == u"i":
668
529
self.change_log_display()
670
elif key == "?" or key == "f1" or key == "esc":
531
elif key == u"?" or key == u"f1" or key == u"esc":
671
532
if not self.log_visible:
672
533
self.log_visible = True
674
self.log_message_raw(("bold",
678
"l: Log window toggle",
679
"TAB: Switch window",
680
"w: Wrap (log lines)",
681
"v: Toggle verbose log",
683
self.log_message_raw(("bold",
689
"s: Start new checker",
535
self.log_message_raw((u"bold",
539
u"l: Log window toggle",
540
u"TAB: Switch window",
542
self.log_message_raw((u"bold",
548
u"s: Start new checker",
696
553
if self.topwidget.get_focus() is self.logbox:
697
554
self.topwidget.set_focus(0)
699
556
self.topwidget.set_focus(self.logbox)
702
if self.log_level == 0:
704
self.log_message("Verbose mode: Off")
707
self.log_message("Verbose mode: On")
708
#elif (key == "end" or key == "meta >" or key == "G"
558
#elif (key == u"end" or key == u"meta >" or key == u"G"
710
560
# pass # xxx end-of-buffer
711
#elif (key == "home" or key == "meta <" or key == "g"
561
#elif (key == u"home" or key == u"meta <" or key == u"g"
713
563
# pass # xxx beginning-of-buffer
714
#elif key == "ctrl e" or key == "$":
564
#elif key == u"ctrl e" or key == u"$":
715
565
# pass # xxx move-end-of-line
716
#elif key == "ctrl a" or key == "^":
566
#elif key == u"ctrl a" or key == u"^":
717
567
# pass # xxx move-beginning-of-line
718
#elif key == "ctrl b" or key == "meta (" or key == "h":
568
#elif key == u"ctrl b" or key == u"meta (" or key == u"h":
719
569
# pass # xxx left
720
#elif key == "ctrl f" or key == "meta )" or key == "l":
570
#elif key == u"ctrl f" or key == u"meta )" or key == u"l":
721
571
# pass # xxx right
723
573
# pass # scroll up log
725
575
# pass # scroll down log
726
576
elif self.topwidget.selectable():
727
577
self.topwidget.keypress(self.size, key)