2
2
# -*- mode: python; coding: utf-8 -*-
4
4
# Mandos Monitor - Control and monitor the Mandos server
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
6
# Copyright © 2009-2016 Teddy Hogeborn
7
# Copyright © 2009-2016 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
13
11
# the Free Software Foundation, either version 3 of the License, or
14
12
# (at your option) any later version.
16
# Mandos is distributed in the hope that it will be useful, but
17
# WITHOUT ANY WARRANTY; without even the implied warranty of
14
# This program is distributed in the hope that it will be useful,
15
# but WITHOUT ANY WARRANTY; without even the implied warranty of
18
16
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19
17
# GNU General Public License for more details.
21
19
# You should have received a copy of the GNU General Public License
22
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
20
# along with this program. If not, see
21
# <http://www.gnu.org/licenses/>.
24
23
# Contact the authors at <mandos@recompile.se>.
27
26
from __future__ import (division, absolute_import, print_function,
39
38
import urwid.curses_display
42
41
from dbus.mainloop.glib import DBusGMainLoop
43
from gi.repository import GLib
45
from gi.repository import GObject as gobject
51
51
if sys.version_info.major == 2:
54
54
locale.setlocale(locale.LC_ALL, '')
56
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
58
59
# Some useful constants
59
60
domain = 'se.recompile'
60
61
server_interface = domain + '.Mandos'
61
62
client_interface = domain + '.Mandos.Client'
65
66
dbus.OBJECT_MANAGER_IFACE
66
67
except AttributeError:
67
68
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
70
70
def isoformat_to_datetime(iso):
71
71
"Parse an ISO 8601 date string to a datetime.datetime()"
83
int(second), # Whole seconds
84
int(fraction*1000000)) # Microseconds
83
int(second), # Whole seconds
84
int(fraction*1000000)) # Microseconds
87
86
class MandosClientPropertyCache(object):
88
87
"""This wraps a Mandos Client D-Bus proxy object, caches the
92
91
def __init__(self, proxy_object=None, properties=None, **kwargs):
93
self.proxy = proxy_object # Mandos Client proxy object
92
self.proxy = proxy_object # Mandos Client proxy object
94
93
self.properties = dict() if properties is None else properties
95
94
self.property_changed_match = (
96
95
self.proxy.connect_to_signal("PropertiesChanged",
97
96
self.properties_changed,
98
97
dbus.PROPERTIES_IFACE,
101
100
if properties is None:
102
self.properties.update(self.proxy.GetAll(
104
dbus_interface=dbus.PROPERTIES_IFACE))
101
self.properties.update(
102
self.proxy.GetAll(client_interface,
104
= dbus.PROPERTIES_IFACE))
106
106
super(MandosClientPropertyCache, self).__init__(**kwargs)
108
108
def properties_changed(self, interface, properties, invalidated):
109
109
"""This is called whenever we get a PropertiesChanged signal
110
110
It updates the changed properties in the "properties" dict.
165
165
byte_arrays=True))
166
166
self.logger('Created client {}'
167
167
.format(self.properties["Name"]), level=0)
169
169
def using_timer(self, flag):
170
170
"""Call this method with True or False when timer should be
171
171
activated or deactivated.
173
173
if flag and self._update_timer_callback_tag is None:
174
174
# Will update the shown timer value every second
175
self._update_timer_callback_tag = (GLib.timeout_add
175
self._update_timer_callback_tag = (gobject.timeout_add
177
177
self.update_timer))
178
178
elif not (flag or self._update_timer_callback_tag is None):
179
GLib.source_remove(self._update_timer_callback_tag)
179
gobject.source_remove(self._update_timer_callback_tag)
180
180
self._update_timer_callback_tag = None
182
182
def checker_completed(self, exitstatus, condition, command):
183
183
if exitstatus == 0:
184
184
self.logger('Checker for client {} (command "{}")'
198
198
.format(self.properties["Name"], command,
199
199
os.WTERMSIG(condition)))
202
202
def checker_started(self, command):
203
203
"""Server signals that a checker started."""
204
204
self.logger('Client {} started checker "{}"'
205
205
.format(self.properties["Name"],
206
206
command), level=0)
208
208
def got_secret(self):
209
209
self.logger('Client {} received its secret'
210
210
.format(self.properties["Name"]))
212
212
def need_approval(self, timeout, default):
214
214
message = 'Client {} needs approval within {} seconds'
216
216
message = 'Client {} will get its secret in {} seconds'
217
217
self.logger(message.format(self.properties["Name"],
220
220
def rejected(self, reason):
221
221
self.logger('Client {} was rejected; reason: {}'
222
222
.format(self.properties["Name"], reason))
224
224
def selectable(self):
225
225
"""Make this a "selectable" widget.
226
226
This overrides the method from urwid.FlowWidget."""
229
229
def rows(self, maxcolrow, focus=False):
230
230
"""How many rows this widget will occupy might depend on
231
231
whether we have focus or not.
232
232
This overrides the method from urwid.FlowWidget"""
233
233
return self.current_widget(focus).rows(maxcolrow, focus=focus)
235
235
def current_widget(self, focus=False):
236
236
if focus or self.opened:
237
237
return self._focus_widget
238
238
return self._widget
240
240
def update(self):
241
241
"Called when what is visible on the screen should be updated."
242
242
# How to add standout mode to a style
243
with_standout = {"normal": "standout",
244
"bold": "bold-standout",
246
"underline-blink-standout",
247
"bold-underline-blink":
248
"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",
251
251
# Rebuild focus and non-focus widgets using current properties
253
253
# Base part of a client. Name!
254
254
base = '{name}: '.format(name=self.properties["Name"])
255
255
if not self.properties["Enabled"]:
256
256
message = "DISABLED"
257
257
self.using_timer(False)
258
258
elif self.properties["ApprovalPending"]:
259
timeout = datetime.timedelta(
260
milliseconds=self.properties["ApprovalDelay"])
259
timeout = datetime.timedelta(milliseconds
261
262
last_approval_request = isoformat_to_datetime(
262
263
self.properties["LastApprovalRequest"])
263
264
if last_approval_request is not None:
306
307
# Run update hook, if any
307
308
if self.update_hook is not None:
308
309
self.update_hook()
310
311
def update_timer(self):
311
"""called by GLib. Will indefinitely loop until
312
GLib.source_remove() on tag is called
312
"""called by gobject. Will indefinitely loop until
313
gobject.source_remove() on tag is called"""
315
315
return True # Keep calling this
317
317
def delete(self, **kwargs):
318
318
if self._update_timer_callback_tag is not None:
319
GLib.source_remove(self._update_timer_callback_tag)
319
gobject.source_remove(self._update_timer_callback_tag)
320
320
self._update_timer_callback_tag = None
321
321
for match in self.match_objects:
324
324
if self.delete_hook is not None:
325
325
self.delete_hook(self)
326
326
return super(MandosClientWidget, self).delete(**kwargs)
328
328
def render(self, maxcolrow, focus=False):
329
329
"""Render differently if we have focus.
330
330
This overrides the method from urwid.FlowWidget"""
331
331
return self.current_widget(focus).render(maxcolrow,
334
334
def keypress(self, maxcolrow, key):
336
336
This overrides the method from urwid.FlowWidget"""
338
338
self.proxy.Set(client_interface, "Enabled",
339
dbus.Boolean(True), ignore_reply=True,
340
dbus_interface=dbus.PROPERTIES_IFACE)
339
dbus.Boolean(True), ignore_reply = True,
340
dbus_interface = dbus.PROPERTIES_IFACE)
342
342
self.proxy.Set(client_interface, "Enabled", False,
344
dbus_interface=dbus.PROPERTIES_IFACE)
344
dbus_interface = dbus.PROPERTIES_IFACE)
346
346
self.proxy.Approve(dbus.Boolean(True, variant_level=1),
347
dbus_interface=client_interface,
347
dbus_interface = client_interface,
348
348
ignore_reply=True)
350
350
self.proxy.Approve(dbus.Boolean(False, variant_level=1),
351
dbus_interface=client_interface,
351
dbus_interface = client_interface,
352
352
ignore_reply=True)
353
353
elif key == "R" or key == "_" or key == "ctrl k":
354
354
self.server_proxy_object.RemoveClient(self.proxy
356
356
ignore_reply=True)
358
358
self.proxy.Set(client_interface, "CheckerRunning",
359
dbus.Boolean(True), ignore_reply=True,
360
dbus_interface=dbus.PROPERTIES_IFACE)
359
dbus.Boolean(True), ignore_reply = True,
360
dbus_interface = dbus.PROPERTIES_IFACE)
362
362
self.proxy.Set(client_interface, "CheckerRunning",
363
dbus.Boolean(False), ignore_reply=True,
364
dbus_interface=dbus.PROPERTIES_IFACE)
363
dbus.Boolean(False), ignore_reply = True,
364
dbus_interface = dbus.PROPERTIES_IFACE)
366
self.proxy.CheckedOK(dbus_interface=client_interface,
366
self.proxy.CheckedOK(dbus_interface = client_interface,
367
367
ignore_reply=True)
369
369
# elif key == "p" or key == "=":
378
378
def properties_changed(self, interface, properties, invalidated):
379
379
"""Call self.update() if any properties changed.
380
380
This overrides the method from MandosClientPropertyCache"""
381
old_values = {key: self.properties.get(key)
382
for key in properties.keys()}
381
old_values = { key: self.properties.get(key)
382
for key in properties.keys() }
383
383
super(MandosClientWidget, self).properties_changed(
384
384
interface, properties, invalidated)
385
385
if any(old_values[key] != self.properties.get(key)
393
393
use them as an excuse to shift focus away from this widget.
395
395
def keypress(self, *args, **kwargs):
396
ret = (super(ConstrainedListBox, self)
397
.keypress(*args, **kwargs))
396
ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
398
397
if ret in ("up", "down"):
407
406
def __init__(self, max_log_length=1000, log_level=1):
408
407
DBusGMainLoop(set_as_default=True)
410
409
self.screen = urwid.curses_display.Screen()
412
411
self.screen.register_palette((
414
413
"default", "default", None),
420
419
"standout", "default", "standout"),
421
420
("bold-underline-blink",
422
"bold,underline,blink", "default",
423
"bold,underline,blink"),
421
"bold,underline,blink", "default", "bold,underline,blink"),
424
422
("bold-standout",
425
423
"bold,standout", "default", "bold,standout"),
426
424
("underline-blink-standout",
430
428
"bold,underline,blink,standout", "default",
431
429
"bold,underline,blink,standout"),
434
432
if urwid.supports_unicode():
435
self.divider = "─" # \u2500
433
self.divider = "─" # \u2500
434
#self.divider = "━" # \u2501
437
self.divider = "_" # \u005f
436
#self.divider = "-" # \u002d
437
self.divider = "_" # \u005f
439
439
self.screen.start()
441
441
self.size = self.screen.get_cols_rows()
443
443
self.clients = urwid.SimpleListWalker([])
444
444
self.clients_dict = {}
446
446
# We will add Text widgets to this list
447
self.log = urwid.SimpleListWalker([])
448
448
self.max_log_length = max_log_length
450
450
self.log_level = log_level
452
452
# We keep a reference to the log widget so we can remove it
453
453
# from the ListWalker without it getting destroyed
454
454
self.logbox = ConstrainedListBox(self.log)
456
456
# This keeps track of whether self.uilist currently has
457
457
# self.logbox in it or not
458
458
self.log_visible = True
459
459
self.log_wrap = "any"
462
462
self.log_message_raw(("bold",
463
463
"Mandos Monitor version " + version))
464
464
self.log_message_raw(("bold",
465
465
"q: Quit ?: Help"))
467
467
self.busname = domain + '.Mandos'
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))
468
self.main_loop = gobject.MainLoop()
470
def client_not_found(self, fingerprint, address):
471
self.log_message("Client with address {} and fingerprint {}"
472
" could not be found"
473
.format(address, fingerprint))
474
475
def rebuild(self):
475
476
"""This rebuilds the User Interface.
476
477
Call this when the widget layout needs to change"""
478
# self.uilist.append(urwid.ListBox(self.clients))
479
#self.uilist.append(urwid.ListBox(self.clients))
479
480
self.uilist.append(urwid.Frame(ConstrainedListBox(self.
481
# header=urwid.Divider(),
482
#header=urwid.Divider(),
483
footer=urwid.Divider(
484
div_char=self.divider)))
485
urwid.Divider(div_char=
485
487
if self.log_visible:
486
488
self.uilist.append(self.logbox)
487
489
self.topwidget = urwid.Pile(self.uilist)
489
491
def log_message(self, message, level=1):
490
492
"""Log message formatted with timestamp"""
491
493
if level < self.log_level:
493
495
timestamp = datetime.datetime.now().isoformat()
494
496
self.log_message_raw("{}: {}".format(timestamp, message),
497
499
def log_message_raw(self, markup, level=1):
498
500
"""Add a log message to the log buffer."""
499
501
if level < self.log_level:
501
503
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
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,
504
if (self.max_log_length
505
and len(self.log) > self.max_log_length):
506
del self.log[0:len(self.log)-self.max_log_length-1]
507
self.logbox.set_focus(len(self.logbox.body.contents),
506
508
coming_from="above")
509
511
def toggle_log_display(self):
510
512
"""Toggle visibility of the log buffer."""
511
513
self.log_visible = not self.log_visible
513
515
self.log_message("Log visibility changed to: {}"
514
516
.format(self.log_visible), level=0)
516
518
def change_log_display(self):
517
519
"""Change type of log display.
518
520
Currently, this toggles wrapping of text lines."""
524
526
textwidget.set_wrap_mode(self.log_wrap)
525
527
self.log_message("Wrap mode: {}".format(self.log_wrap),
528
530
def find_and_remove_client(self, path, interfaces):
529
531
"""Find a client by its object path and remove it.
531
533
This is connected to the InterfacesRemoved signal from the
532
534
Mandos server object."""
533
535
if client_interface not in interfaces:
552
554
# Not a Mandos client object; ignore
554
556
client_proxy_object = self.bus.get_object(self.busname, path)
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])),
557
self.add_client(MandosClientWidget(server_proxy_object
560
=client_proxy_object,
568
= dict(ifs_and_props[
564
572
def add_client(self, client, path=None):
565
573
self.clients.append(client)
568
576
self.clients_dict[path] = client
569
577
self.clients.sort(key=lambda c: c.properties["Name"])
572
580
def remove_client(self, client, path=None):
573
581
self.clients.remove(client)
575
583
path = client.proxy.object_path
576
584
del self.clients_dict[path]
579
587
def refresh(self):
580
588
"""Redraw the screen"""
581
589
canvas = self.topwidget.render(self.size, focus=True)
582
590
self.screen.draw_screen(self.size, canvas)
585
593
"""Start the main loop and exit when it's done."""
586
594
self.bus = dbus.SystemBus()
587
595
mandos_dbus_objc = self.bus.get_object(
588
596
self.busname, "/", follow_name_owner_changes=True)
589
self.mandos_serv = dbus.Interface(
590
mandos_dbus_objc, dbus_interface=server_interface)
597
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
592
601
mandos_clients = (self.mandos_serv
593
602
.GetAllClientsWithProperties())
594
603
if not mandos_clients:
595
self.log_message_raw(("bold",
596
"Note: Server has no clients."))
604
self.log_message_raw(("bold", "Note: Server has no clients."))
597
605
except dbus.exceptions.DBusException:
598
self.log_message_raw(("bold",
599
"Note: No Mandos server running."))
606
self.log_message_raw(("bold", "Note: No Mandos server running."))
600
607
mandos_clients = dbus.Dictionary()
602
609
(self.mandos_serv
603
610
.connect_to_signal("InterfacesRemoved",
604
611
self.find_and_remove_client,
605
dbus_interface=dbus.OBJECT_MANAGER_IFACE,
613
= dbus.OBJECT_MANAGER_IFACE,
606
614
byte_arrays=True))
607
615
(self.mandos_serv
608
616
.connect_to_signal("InterfacesAdded",
609
617
self.add_new_client,
610
dbus_interface=dbus.OBJECT_MANAGER_IFACE,
619
= dbus.OBJECT_MANAGER_IFACE,
611
620
byte_arrays=True))
612
621
(self.mandos_serv
613
622
.connect_to_signal("ClientNotFound",
617
626
for path, client in mandos_clients.items():
618
627
client_proxy_object = self.bus.get_object(self.busname,
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),
629
self.add_client(MandosClientWidget(server_proxy_object
632
=client_proxy_object,
630
self._input_callback_tag = (
632
GLib.IOChannel.unix_new(sys.stdin.fileno()),
633
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
643
self._input_callback_tag = (gobject.io_add_watch
635
647
self.main_loop.run()
636
648
# Main loop has finished, we should close everything now
637
GLib.source_remove(self._input_callback_tag)
638
with warnings.catch_warnings():
639
warnings.simplefilter("ignore", BytesWarning)
649
gobject.source_remove(self._input_callback_tag)
643
653
self.main_loop.quit()
645
655
def process_input(self, source, condition):
646
656
keys = self.screen.get_input()
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
657
translations = { "ctrl n": "down", # Emacs
658
"ctrl p": "up", # Emacs
659
"ctrl v": "page down", # Emacs
660
"meta v": "page up", # Emacs
661
" ": "page down", # less
662
"f": "page down", # less
663
"b": "page up", # less
659
669
key = translations[key]
660
670
except KeyError: # :-)
663
673
if key == "q" or key == "Q":
714
724
self.log_level = 0
715
725
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 == "$":
723
# pass # xxx move-end-of-line
724
# elif key == "ctrl a" or key == "^":
725
# pass # xxx move-beginning-of-line
726
# elif key == "ctrl b" or key == "meta (" or key == "h":
728
# elif key == "ctrl f" or key == "meta )" or key == "l":
731
# pass # scroll up log
733
# pass # scroll down log
726
#elif (key == "end" or key == "meta >" or key == "G"
728
# pass # xxx end-of-buffer
729
#elif (key == "home" or key == "meta <" or key == "g"
731
# pass # xxx beginning-of-buffer
732
#elif key == "ctrl e" or key == "$":
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
734
744
elif self.topwidget.selectable():
735
745
self.topwidget.keypress(self.size, key)
740
749
ui = UserInterface()