2
2
# -*- mode: python; coding: utf-8 -*-
4
4
# Mandos Monitor - Control and monitor the Mandos server
6
# Copyright © 2009-2012 Teddy Hogeborn
7
# Copyright © 2009-2012 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
6
# Copyright © 2009-2019 Teddy Hogeborn
7
# Copyright © 2009-2019 Björn Påhlsson
9
# This file is part of Mandos.
11
# Mandos is free software: you can redistribute it and/or modify it
12
# under the terms of the GNU General Public License as published by
11
13
# the Free Software Foundation, either version 3 of the License, or
12
14
# (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
# Mandos is distributed in the hope that it will be useful, but
17
# WITHOUT ANY WARRANTY; without even the implied warranty of
16
18
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17
19
# GNU General Public License for more details.
19
21
# 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
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
23
24
# Contact the authors at <mandos@recompile.se>.
26
27
from __future__ import (division, absolute_import, print_function,
87
92
def __init__(self, proxy_object=None, properties=None, **kwargs):
88
self.proxy = proxy_object # Mandos Client proxy object
93
self.proxy = proxy_object # Mandos Client proxy object
89
94
self.properties = dict() if properties is None else properties
90
95
self.property_changed_match = (
91
self.proxy.connect_to_signal("PropertyChanged",
92
self._property_changed,
96
self.proxy.connect_to_signal("PropertiesChanged",
97
self.properties_changed,
98
dbus.PROPERTIES_IFACE,
96
101
if properties is None:
97
self.properties.update(
98
self.proxy.GetAll(client_interface,
100
= dbus.PROPERTIES_IFACE))
102
self.properties.update(self.proxy.GetAll(
104
dbus_interface=dbus.PROPERTIES_IFACE))
102
106
super(MandosClientPropertyCache, self).__init__(**kwargs)
104
def _property_changed(self, property, value):
105
"""Helper which takes positional arguments"""
106
return self.property_changed(property=property, value=value)
108
def property_changed(self, property=None, value=None):
109
"""This is called whenever we get a PropertyChanged signal
110
It updates the changed property in the "properties" dict.
108
def properties_changed(self, interface, properties, invalidated):
109
"""This is called whenever we get a PropertiesChanged signal
110
It updates the changed properties in the "properties" dict.
112
112
# Update properties dict with new value
113
self.properties[property] = value
113
if interface == client_interface:
114
self.properties.update(properties)
115
116
def delete(self):
116
117
self.property_changed_match.remove()
163
164
client_interface,
164
165
byte_arrays=True))
165
#self.logger('Created client {0}'
166
# .format(self.properties["Name"]))
166
self.logger('Created client {}'
167
.format(self.properties["Name"]), level=0)
168
169
def using_timer(self, flag):
169
170
"""Call this method with True or False when timer should be
170
171
activated or deactivated.
172
173
if flag and self._update_timer_callback_tag is None:
173
174
# Will update the shown timer value every second
174
self._update_timer_callback_tag = (gobject.timeout_add
175
self._update_timer_callback_tag = (GLib.timeout_add
176
177
self.update_timer))
177
178
elif not (flag or self._update_timer_callback_tag is None):
178
gobject.source_remove(self._update_timer_callback_tag)
179
GLib.source_remove(self._update_timer_callback_tag)
179
180
self._update_timer_callback_tag = None
181
182
def checker_completed(self, exitstatus, condition, command):
182
183
if exitstatus == 0:
184
self.logger('Checker for client {} (command "{}")'
185
' succeeded'.format(self.properties["Name"],
186
190
if os.WIFEXITED(condition):
187
self.logger('Checker for client {0} (command "{1}")'
188
' failed with exit code {2}'
191
self.logger('Checker for client {} (command "{}") failed'
189
193
.format(self.properties["Name"], command,
190
194
os.WEXITSTATUS(condition)))
191
195
elif os.WIFSIGNALED(condition):
192
self.logger('Checker for client {0} (command "{1}") was'
193
' killed by signal {2}'
196
self.logger('Checker for client {} (command "{}") was'
197
' killed by signal {}'
194
198
.format(self.properties["Name"], command,
195
199
os.WTERMSIG(condition)))
196
elif os.WCOREDUMP(condition):
197
self.logger('Checker for client {0} (command "{1}")'
199
.format(self.properties["Name"], command))
201
self.logger('Checker for client {0} completed'
203
.format(self.properties["Name"]))
206
202
def checker_started(self, command):
207
"""Server signals that a checker started. This could be useful
208
to log in the future. """
209
#self.logger('Client {0} started checker "{1}"'
210
# .format(self.properties["Name"],
203
"""Server signals that a checker started."""
204
self.logger('Client {} started checker "{}"'
205
.format(self.properties["Name"],
214
208
def got_secret(self):
215
self.logger('Client {0} received its secret'
209
self.logger('Client {} received its secret'
216
210
.format(self.properties["Name"]))
218
212
def need_approval(self, timeout, default):
220
message = 'Client {0} needs approval within {1} seconds'
214
message = 'Client {} needs approval within {} seconds'
222
message = 'Client {0} will get its secret in {1} seconds'
216
message = 'Client {} will get its secret in {} seconds'
223
217
self.logger(message.format(self.properties["Name"],
226
220
def rejected(self, reason):
227
self.logger('Client {0} was rejected; reason: {1}'
221
self.logger('Client {} was rejected; reason: {}'
228
222
.format(self.properties["Name"], reason))
230
224
def selectable(self):
231
225
"""Make this a "selectable" widget.
232
226
This overrides the method from urwid.FlowWidget."""
235
229
def rows(self, maxcolrow, focus=False):
236
230
"""How many rows this widget will occupy might depend on
237
231
whether we have focus or not.
238
232
This overrides the method from urwid.FlowWidget"""
239
233
return self.current_widget(focus).rows(maxcolrow, focus=focus)
241
235
def current_widget(self, focus=False):
242
236
if focus or self.opened:
243
237
return self._focus_widget
244
238
return self._widget
246
240
def update(self):
247
241
"Called when what is visible on the screen should be updated."
248
242
# How to add standout mode to a style
249
with_standout = { "normal": "standout",
250
"bold": "bold-standout",
252
"underline-blink-standout",
253
"bold-underline-blink":
254
"bold-underline-blink-standout",
243
with_standout = {"normal": "standout",
244
"bold": "bold-standout",
246
"underline-blink-standout",
247
"bold-underline-blink":
248
"bold-underline-blink-standout",
257
251
# Rebuild focus and non-focus widgets using current properties
259
253
# Base part of a client. Name!
260
254
base = '{name}: '.format(name=self.properties["Name"])
261
255
if not self.properties["Enabled"]:
262
256
message = "DISABLED"
263
257
self.using_timer(False)
264
258
elif self.properties["ApprovalPending"]:
265
timeout = datetime.timedelta(milliseconds
259
timeout = datetime.timedelta(
260
milliseconds=self.properties["ApprovalDelay"])
268
261
last_approval_request = isoformat_to_datetime(
269
262
self.properties["LastApprovalRequest"])
270
263
if last_approval_request is not None:
330
324
if self.delete_hook is not None:
331
325
self.delete_hook(self)
332
326
return super(MandosClientWidget, self).delete(**kwargs)
334
328
def render(self, maxcolrow, focus=False):
335
329
"""Render differently if we have focus.
336
330
This overrides the method from urwid.FlowWidget"""
337
331
return self.current_widget(focus).render(maxcolrow,
340
334
def keypress(self, maxcolrow, key):
342
336
This overrides the method from urwid.FlowWidget"""
344
self.proxy.Enable(dbus_interface = client_interface,
338
self.proxy.Set(client_interface, "Enabled",
339
dbus.Boolean(True), ignore_reply=True,
340
dbus_interface=dbus.PROPERTIES_IFACE)
347
self.proxy.Disable(dbus_interface = client_interface,
342
self.proxy.Set(client_interface, "Enabled", False,
344
dbus_interface=dbus.PROPERTIES_IFACE)
350
346
self.proxy.Approve(dbus.Boolean(True, variant_level=1),
351
dbus_interface = client_interface,
347
dbus_interface=client_interface,
352
348
ignore_reply=True)
354
350
self.proxy.Approve(dbus.Boolean(False, variant_level=1),
355
dbus_interface = client_interface,
351
dbus_interface=client_interface,
356
352
ignore_reply=True)
357
353
elif key == "R" or key == "_" or key == "ctrl k":
358
354
self.server_proxy_object.RemoveClient(self.proxy
360
356
ignore_reply=True)
362
self.proxy.StartChecker(dbus_interface = client_interface,
358
self.proxy.Set(client_interface, "CheckerRunning",
359
dbus.Boolean(True), ignore_reply=True,
360
dbus_interface=dbus.PROPERTIES_IFACE)
365
self.proxy.StopChecker(dbus_interface = client_interface,
362
self.proxy.Set(client_interface, "CheckerRunning",
363
dbus.Boolean(False), ignore_reply=True,
364
dbus_interface=dbus.PROPERTIES_IFACE)
368
self.proxy.CheckedOK(dbus_interface = client_interface,
366
self.proxy.CheckedOK(dbus_interface=client_interface,
369
367
ignore_reply=True)
371
369
# elif key == "p" or key == "=":
380
def property_changed(self, property=None, **kwargs):
381
"""Call self.update() if old value is not new value.
378
def properties_changed(self, interface, properties, invalidated):
379
"""Call self.update() if any properties changed.
382
380
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:
381
old_values = {key: self.properties.get(key)
382
for key in properties.keys()}
383
super(MandosClientWidget, self).properties_changed(
384
interface, properties, invalidated)
385
if any(old_values[key] != self.properties.get(key)
386
for key in old_values):
429
430
"bold,underline,blink,standout", "default",
430
431
"bold,underline,blink,standout"),
433
434
if urwid.supports_unicode():
434
self.divider = "─" # \u2500
435
#self.divider = "━" # \u2501
435
self.divider = "─" # \u2500
437
#self.divider = "-" # \u002d
438
self.divider = "_" # \u005f
437
self.divider = "_" # \u005f
440
439
self.screen.start()
442
441
self.size = self.screen.get_cols_rows()
444
443
self.clients = urwid.SimpleListWalker([])
445
444
self.clients_dict = {}
447
446
# We will add Text widgets to this list
447
self.log = urwid.SimpleListWalker([])
449
448
self.max_log_length = max_log_length
450
self.log_level = log_level
451
452
# We keep a reference to the log widget so we can remove it
452
453
# from the ListWalker without it getting destroyed
453
454
self.logbox = ConstrainedListBox(self.log)
455
456
# This keeps track of whether self.uilist currently has
456
457
# self.logbox in it or not
457
458
self.log_visible = True
458
459
self.log_wrap = "any"
461
462
self.log_message_raw(("bold",
462
463
"Mandos Monitor version " + version))
463
464
self.log_message_raw(("bold",
464
465
"q: Quit ?: Help"))
466
467
self.busname = domain + '.Mandos'
467
self.main_loop = gobject.MainLoop()
469
def client_not_found(self, fingerprint, address):
470
self.log_message("Client with address {0} and fingerprint"
471
" {1} could not be found"
472
.format(address, fingerprint))
468
self.main_loop = GLib.MainLoop()
470
def client_not_found(self, key_id, address):
471
self.log_message("Client with address {} and key ID {} could"
472
" not be found".format(address, key_id))
474
474
def rebuild(self):
475
475
"""This rebuilds the User Interface.
476
476
Call this when the widget layout needs to change"""
478
#self.uilist.append(urwid.ListBox(self.clients))
478
# self.uilist.append(urwid.ListBox(self.clients))
479
479
self.uilist.append(urwid.Frame(ConstrainedListBox(self.
481
#header=urwid.Divider(),
481
# header=urwid.Divider(),
484
urwid.Divider(div_char=
483
footer=urwid.Divider(
484
div_char=self.divider)))
486
485
if self.log_visible:
487
486
self.uilist.append(self.logbox)
488
487
self.topwidget = urwid.Pile(self.uilist)
490
def log_message(self, message):
489
def log_message(self, message, level=1):
491
490
"""Log message formatted with timestamp"""
491
if level < self.log_level:
492
493
timestamp = datetime.datetime.now().isoformat()
493
self.log_message_raw(timestamp + ": " + message)
495
def log_message_raw(self, markup):
494
self.log_message_raw("{}: {}".format(timestamp, message),
497
def log_message_raw(self, markup, level=1):
496
498
"""Add a log message to the log buffer."""
499
if level < self.log_level:
497
501
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
498
if (self.max_log_length
499
and len(self.log) > self.max_log_length):
500
del self.log[0:len(self.log)-self.max_log_length-1]
501
self.logbox.set_focus(len(self.logbox.body.contents),
502
if self.max_log_length:
503
if len(self.log) > self.max_log_length:
504
del self.log[0:len(self.log)-self.max_log_length-1]
505
self.logbox.set_focus(len(self.logbox.body.contents)-1,
502
506
coming_from="above")
505
509
def toggle_log_display(self):
506
510
"""Toggle visibility of the log buffer."""
507
511
self.log_visible = not self.log_visible
509
#self.log_message("Log visibility changed to: "
510
# + str(self.log_visible))
513
self.log_message("Log visibility changed to: {}"
514
.format(self.log_visible), level=0)
512
516
def change_log_display(self):
513
517
"""Change type of log display.
514
518
Currently, this toggles wrapping of text lines."""
518
522
self.log_wrap = "clip"
519
523
for textwidget in self.log:
520
524
textwidget.set_wrap_mode(self.log_wrap)
521
#self.log_message("Wrap mode: " + self.log_wrap)
523
def find_and_remove_client(self, path, name):
525
self.log_message("Wrap mode: {}".format(self.log_wrap),
528
def find_and_remove_client(self, path, interfaces):
524
529
"""Find a client by its object path and remove it.
526
This is connected to the ClientRemoved signal from the
531
This is connected to the InterfacesRemoved signal from the
527
532
Mandos server object."""
533
if client_interface not in interfaces:
534
# Not a Mandos client object; ignore
529
537
client = self.clients_dict[path]
532
self.log_message("Unknown client {0!r} ({1!r}) removed"
540
self.log_message("Unknown client {!r} removed"
537
def add_new_client(self, path):
545
def add_new_client(self, path, ifs_and_props):
546
"""Find a client by its object path and remove it.
548
This is connected to the InterfacesAdded signal from the
549
Mandos server object.
551
if client_interface not in ifs_and_props:
552
# Not a Mandos client object; ignore
538
554
client_proxy_object = self.bus.get_object(self.busname, path)
539
self.add_client(MandosClientWidget(server_proxy_object
542
=client_proxy_object,
555
self.add_client(MandosClientWidget(
556
server_proxy_object=self.mandos_serv,
557
proxy_object=client_proxy_object,
558
update_hook=self.refresh,
559
delete_hook=self.remove_client,
560
logger=self.log_message,
561
properties=dict(ifs_and_props[client_interface])),
551
564
def add_client(self, client, path=None):
552
565
self.clients.append(client)
555
568
self.clients_dict[path] = client
556
569
self.clients.sort(key=lambda c: c.properties["Name"])
559
572
def remove_client(self, client, path=None):
560
573
self.clients.remove(client)
562
575
path = client.proxy.object_path
563
576
del self.clients_dict[path]
566
579
def refresh(self):
567
580
"""Redraw the screen"""
568
581
canvas = self.topwidget.render(self.size, focus=True)
569
582
self.screen.draw_screen(self.size, canvas)
572
585
"""Start the main loop and exit when it's done."""
573
586
self.bus = dbus.SystemBus()
574
587
mandos_dbus_objc = self.bus.get_object(
575
588
self.busname, "/", follow_name_owner_changes=True)
576
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
589
self.mandos_serv = dbus.Interface(
590
mandos_dbus_objc, dbus_interface=server_interface)
580
592
mandos_clients = (self.mandos_serv
581
593
.GetAllClientsWithProperties())
582
594
if not mandos_clients:
583
self.log_message_raw(("bold", "Note: Server has no clients."))
595
self.log_message_raw(("bold",
596
"Note: Server has no clients."))
584
597
except dbus.exceptions.DBusException:
585
self.log_message_raw(("bold", "Note: No Mandos server running."))
598
self.log_message_raw(("bold",
599
"Note: No Mandos server running."))
586
600
mandos_clients = dbus.Dictionary()
588
602
(self.mandos_serv
589
.connect_to_signal("ClientRemoved",
603
.connect_to_signal("InterfacesRemoved",
590
604
self.find_and_remove_client,
591
dbus_interface=server_interface,
605
dbus_interface=dbus.OBJECT_MANAGER_IFACE,
592
606
byte_arrays=True))
593
607
(self.mandos_serv
594
.connect_to_signal("ClientAdded",
608
.connect_to_signal("InterfacesAdded",
595
609
self.add_new_client,
596
dbus_interface=server_interface,
610
dbus_interface=dbus.OBJECT_MANAGER_IFACE,
597
611
byte_arrays=True))
598
612
(self.mandos_serv
599
613
.connect_to_signal("ClientNotFound",
603
617
for path, client in mandos_clients.items():
604
618
client_proxy_object = self.bus.get_object(self.busname,
606
self.add_client(MandosClientWidget(server_proxy_object
609
=client_proxy_object,
620
self.add_client(MandosClientWidget(
621
server_proxy_object=self.mandos_serv,
622
proxy_object=client_proxy_object,
624
update_hook=self.refresh,
625
delete_hook=self.remove_client,
626
logger=self.log_message),
620
self._input_callback_tag = (gobject.io_add_watch
630
self._input_callback_tag = (
632
GLib.IOChannel.unix_new(sys.stdin.fileno()),
633
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
624
635
self.main_loop.run()
625
636
# Main loop has finished, we should close everything now
626
gobject.source_remove(self._input_callback_tag)
637
GLib.source_remove(self._input_callback_tag)
638
with warnings.catch_warnings():
639
warnings.simplefilter("ignore", BytesWarning)
630
643
self.main_loop.quit()
632
645
def process_input(self, source, condition):
633
646
keys = self.screen.get_input()
634
translations = { "ctrl n": "down", # Emacs
635
"ctrl p": "up", # Emacs
636
"ctrl v": "page down", # Emacs
637
"meta v": "page up", # Emacs
638
" ": "page down", # less
639
"f": "page down", # less
640
"b": "page up", # less
647
translations = {"ctrl n": "down", # Emacs
648
"ctrl p": "up", # Emacs
649
"ctrl v": "page down", # Emacs
650
"meta v": "page up", # Emacs
651
" ": "page down", # less
652
"f": "page down", # less
653
"b": "page up", # less
646
659
key = translations[key]
647
660
except KeyError: # :-)
650
663
if key == "q" or key == "Q":
653
666
elif key == "window resize":
654
667
self.size = self.screen.get_cols_rows()
656
elif key == "\f": # Ctrl-L
669
elif key == "ctrl l":
658
672
elif key == "l" or key == "D":
659
673
self.toggle_log_display()
691
707
self.topwidget.set_focus(self.logbox)
693
#elif (key == "end" or key == "meta >" or key == "G"
695
# pass # xxx end-of-buffer
696
#elif (key == "home" or key == "meta <" or key == "g"
698
# pass # xxx beginning-of-buffer
699
#elif key == "ctrl e" or key == "$":
700
# pass # xxx move-end-of-line
701
#elif key == "ctrl a" or key == "^":
702
# pass # xxx move-beginning-of-line
703
#elif key == "ctrl b" or key == "meta (" or key == "h":
705
#elif key == "ctrl f" or key == "meta )" or key == "l":
708
# pass # scroll up log
710
# pass # scroll down log
710
if self.log_level == 0:
712
self.log_message("Verbose mode: Off")
715
self.log_message("Verbose mode: On")
716
# elif (key == "end" or key == "meta >" or key == "G"
718
# pass # xxx end-of-buffer
719
# elif (key == "home" or key == "meta <" or key == "g"
721
# pass # xxx beginning-of-buffer
722
# elif key == "ctrl e" or key == "$":
723
# pass # xxx move-end-of-line
724
# elif key == "ctrl a" or key == "^":
725
# pass # xxx move-beginning-of-line
726
# elif key == "ctrl b" or key == "meta (" or key == "h":
728
# elif key == "ctrl f" or key == "meta )" or key == "l":
731
# pass # scroll up log
733
# pass # scroll down log
711
734
elif self.topwidget.selectable():
712
735
self.topwidget.keypress(self.size, key)
716
740
ui = UserInterface()