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
38
9
import urwid.curses_display
41
12
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, '')
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
59
19
# Some useful constants
60
domain = 'se.recompile'
20
domain = 'se.bsnet.fukt'
61
21
server_interface = domain + '.Mandos'
62
22
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
25
# Always run in monochrome mode
26
urwid.curses_display.curses.has_colors = lambda : False
28
# Urwid doesn't support blinking, but we want it. Since we have no
29
# use for underline on its own, we make underline also always blink.
30
urwid.curses_display.curses.A_UNDERLINE |= (
31
urwid.curses_display.curses.A_BLINK)
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, properties=None, **kwargs):
38
def __init__(self, proxy_object=None, properties=None, *args,
87
40
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)
42
if properties is None:
43
self.properties = dict()
45
self.properties = properties
46
self.proxy.connect_to_signal("PropertyChanged",
47
self.property_changed,
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)
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.
59
def property_changed(self, property=None, value=None):
60
"""This is called whenever we get a PropertyChanged signal
61
It updates the changed property in the "properties" dict.
107
63
# Update properties dict with new value
108
self.properties.update(properties)
111
self.property_changed_match.remove()
64
self.properties[property] = value
114
67
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
118
71
def __init__(self, server_proxy_object=None, update_hook=None,
119
delete_hook=None, logger=None, **kwargs):
72
delete_hook=None, *args, **kwargs):
120
73
# Called on update
121
74
self.update_hook = update_hook
122
75
# Called on delete
123
76
self.delete_hook = delete_hook
124
77
# Mandos Server proxy object
125
78
self.server_proxy_object = server_proxy_object
129
self._update_timer_callback_tag = None
131
80
# The widget shown normally
132
81
self._text_widget = urwid.Text("")
133
82
# The widget shown when we have focus
134
83
self._focus_text_widget = urwid.Text("")
135
super(MandosClientWidget, self).__init__(**kwargs)
84
super(MandosClientWidget, self).__init__(
85
update_hook=update_hook, delete_hook=delete_hook,
137
88
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):
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"]))
200
def checker_started(self, command):
201
"""Server signals that a checker started."""
202
self.logger('Client {} started checker "{}"'
203
.format(self.properties["Name"],
206
def got_secret(self):
207
self.logger('Client {} received its secret'
208
.format(self.properties["Name"]))
210
def need_approval(self, timeout, default):
212
message = 'Client {} needs approval within {} seconds'
214
message = 'Client {} will get its secret in {} seconds'
215
self.logger(message.format(self.properties["Name"],
218
def rejected(self, reason):
219
self.logger('Client {} was rejected; reason: {}'
220
.format(self.properties["Name"], reason))
222
90
def selectable(self):
223
91
"""Make this a "selectable" widget.
224
92
This overrides the method from urwid.FlowWidget."""
227
def rows(self, maxcolrow, focus=False):
95
def rows(self, (maxcol,), focus=False):
228
96
"""How many rows this widget will occupy might depend on
229
97
whether we have focus or not.
230
98
This overrides the method from urwid.FlowWidget"""
231
return self.current_widget(focus).rows(maxcolrow, focus=focus)
99
return self.current_widget(focus).rows((maxcol,), focus=focus)
233
101
def current_widget(self, focus=False):
234
102
if focus or self.opened:
238
106
def update(self):
239
107
"Called when what is visible on the screen should be updated."
240
108
# 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",
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",
249
117
# 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)
118
self._text = (u'name="%(name)s", enabled=%(enabled)s'
293
120
if not urwid.supports_unicode():
294
121
self._text = self._text.encode("ascii", "replace")
295
textlist = [("normal", self._text)]
122
textlist = [(u"normal", u"BLARGH: "), (u"bold", self._text)]
296
123
self._text_widget.set_text(textlist)
297
124
self._focus_text_widget.set_text([(with_standout[text[0]],
306
133
if self.update_hook is not None:
307
134
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
137
if self.delete_hook is not None:
323
138
self.delete_hook(self)
324
return super(MandosClientWidget, self).delete(**kwargs)
326
def render(self, maxcolrow, focus=False):
140
def render(self, (maxcol,), focus=False):
327
141
"""Render differently if we have focus.
328
142
This overrides the method from urwid.FlowWidget"""
329
return self.current_widget(focus).render(maxcolrow,
143
return self.current_widget(focus).render((maxcol,),
332
def keypress(self, maxcolrow, key):
146
def keypress(self, (maxcol,), key):
334
148
This overrides the method from urwid.FlowWidget"""
336
self.proxy.Enable(dbus_interface = client_interface,
339
self.proxy.Disable(dbus_interface = client_interface,
342
self.proxy.Approve(dbus.Boolean(True, variant_level=1),
343
dbus_interface = client_interface,
346
self.proxy.Approve(dbus.Boolean(False, variant_level=1),
347
dbus_interface = client_interface,
349
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"_":
350
154
self.server_proxy_object.RemoveClient(self.proxy
354
self.proxy.StartChecker(dbus_interface = client_interface,
357
self.proxy.StopChecker(dbus_interface = client_interface,
360
self.proxy.CheckedOK(dbus_interface = client_interface,
157
self.proxy.StartChecker()
159
self.proxy.StopChecker()
161
self.proxy.CheckedOK()
363
# elif key == "p" or key == "=":
163
# elif key == u"p" or key == "=":
364
164
# self.proxy.pause()
365
# elif key == "u" or key == ":":
165
# elif key == u"u" or key == ":":
366
166
# self.proxy.unpause()
167
# elif key == u"RET":
372
def properties_changed(self, interface, properties, invalidated):
373
"""Call self.update() if any properties changed.
172
def property_changed(self, property=None, value=None,
174
"""Call self.update() if old value is not new value.
374
175
This overrides the method from MandosClientPropertyCache"""
375
old_values = { key: self.properties.get(key)
376
for key in properties.keys() }
377
super(MandosClientWidget, self).properties_changed(
378
interface, properties, invalidated)
379
if any(old_values[key] != self.properties.get(key)
380
for key in old_values):
176
property_name = unicode(property)
177
old_value = self.properties.get(property_name)
178
super(MandosClientWidget, self).property_changed(
179
property=property, value=value, *args, **kwargs)
180
if self.properties.get(property_name) != old_value:
397
197
"""This is the entire user interface - the whole screen
398
198
with boxes, lists of client widgets, etc.
400
def __init__(self, max_log_length=1000, log_level=1):
200
def __init__(self, max_log_length=1000):
401
201
DBusGMainLoop(set_as_default=True)
403
203
self.screen = urwid.curses_display.Screen()
405
205
self.screen.register_palette((
407
"default", "default", None),
409
"bold", "default", "bold"),
411
"underline,blink", "default", "underline,blink"),
413
"standout", "default", "standout"),
414
("bold-underline-blink",
415
"bold,underline,blink", "default", "bold,underline,blink"),
417
"bold,standout", "default", "bold,standout"),
418
("underline-blink-standout",
419
"underline,blink,standout", "default",
420
"underline,blink,standout"),
421
("bold-underline-blink-standout",
422
"bold,underline,blink,standout", "default",
423
"bold,underline,blink,standout"),
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",
426
225
if urwid.supports_unicode():
427
self.divider = "─" # \u2500
428
#self.divider = "━" # \u2501
226
#self.divider = u"─" # \u2500
227
self.divider = u"━" # \u2501
430
#self.divider = "-" # \u002d
431
self.divider = "_" # \u005f
229
#self.divider = u"-" # \u002d
230
self.divider = u"_" # \u005f
433
232
self.screen.start()
450
247
# This keeps track of whether self.uilist currently has
451
248
# self.logbox in it or not
452
249
self.log_visible = True
453
self.log_wrap = "any"
250
self.log_wrap = u"any"
456
self.log_message_raw(("bold",
457
"Mandos Monitor version " + version))
458
self.log_message_raw(("bold",
253
self.log_message((u"bold",
254
u"Mandos Monitor version " + version))
255
self.log_message((u"bold",
461
258
self.busname = domain + '.Mandos'
462
259
self.main_loop = gobject.MainLoop()
464
def client_not_found(self, fingerprint, address):
465
self.log_message("Client with address {} and fingerprint {}"
466
" could not be found"
467
.format(address, fingerprint))
260
self.bus = dbus.SystemBus()
261
mandos_dbus_objc = self.bus.get_object(
262
self.busname, u"/", follow_name_owner_changes=True)
263
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
267
mandos_clients = (self.mandos_serv
268
.GetAllClientsWithProperties())
269
except dbus.exceptions.DBusException:
270
mandos_clients = dbus.Dictionary()
273
.connect_to_signal("ClientRemoved",
274
self.find_and_remove_client,
275
dbus_interface=server_interface,
278
.connect_to_signal("ClientAdded",
280
dbus_interface=server_interface,
282
for path, client in mandos_clients.iteritems():
283
client_proxy_object = self.bus.get_object(self.busname,
285
self.add_client(MandosClientWidget(server_proxy_object
288
=client_proxy_object,
293
=self.remove_client),
469
296
def rebuild(self):
470
297
"""This rebuilds the User Interface.
471
298
Call this when the widget layout needs to change"""
473
300
#self.uilist.append(urwid.ListBox(self.clients))
474
self.uilist.append(urwid.Frame(ConstrainedListBox(self.
301
self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
476
302
#header=urwid.Divider(),
479
urwid.Divider(div_char=
304
footer=urwid.Divider(div_char=self.divider)))
481
305
if self.log_visible:
482
306
self.uilist.append(self.logbox)
483
308
self.topwidget = urwid.Pile(self.uilist)
485
def log_message(self, message, level=1):
486
"""Log message formatted with timestamp"""
487
if level < self.log_level:
489
timestamp = datetime.datetime.now().isoformat()
490
self.log_message_raw("{}: {}".format(timestamp, message),
493
def log_message_raw(self, markup, level=1):
310
def log_message(self, markup):
494
311
"""Add a log message to the log buffer."""
495
if level < self.log_level:
497
312
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
498
313
if (self.max_log_length
499
314
and len(self.log) > self.max_log_length):
500
315
del self.log[0:len(self.log)-self.max_log_length-1]
501
self.logbox.set_focus(len(self.logbox.body.contents),
505
317
def toggle_log_display(self):
506
318
"""Toggle visibility of the log buffer."""
507
319
self.log_visible = not self.log_visible
509
self.log_message("Log visibility changed to: {}"
510
.format(self.log_visible), level=0)
321
self.log_message(u"Log visibility changed to: "
322
+ unicode(self.log_visible))
512
324
def change_log_display(self):
513
325
"""Change type of log display.
514
326
Currently, this toggles wrapping of text lines."""
515
if self.log_wrap == "clip":
516
self.log_wrap = "any"
327
if self.log_wrap == u"clip":
328
self.log_wrap = u"any"
518
self.log_wrap = "clip"
330
self.log_wrap = u"clip"
519
331
for textwidget in self.log:
520
332
textwidget.set_wrap_mode(self.log_wrap)
521
self.log_message("Wrap mode: {}".format(self.log_wrap),
333
self.log_message(u"Wrap mode: " + self.log_wrap)
524
335
def find_and_remove_client(self, path, name):
525
"""Find a client by its object path and remove it.
336
"""Find an client from its object path and remove it.
527
338
This is connected to the ClientRemoved signal from the
528
339
Mandos server object."""
573
386
"""Start the main loop and exit when it's done."""
574
self.bus = dbus.SystemBus()
575
mandos_dbus_objc = self.bus.get_object(
576
self.busname, "/", follow_name_owner_changes=True)
577
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
581
mandos_clients = (self.mandos_serv
582
.GetAllClientsWithProperties())
583
if not mandos_clients:
584
self.log_message_raw(("bold", "Note: Server has no clients."))
585
except dbus.exceptions.DBusException:
586
self.log_message_raw(("bold", "Note: No Mandos server running."))
587
mandos_clients = dbus.Dictionary()
590
.connect_to_signal("ClientRemoved",
591
self.find_and_remove_client,
592
dbus_interface=server_interface,
595
.connect_to_signal("ClientAdded",
597
dbus_interface=server_interface,
600
.connect_to_signal("ClientNotFound",
601
self.client_not_found,
602
dbus_interface=server_interface,
604
for path, client in mandos_clients.items():
605
client_proxy_object = self.bus.get_object(self.busname,
607
self.add_client(MandosClientWidget(server_proxy_object
610
=client_proxy_object,
621
388
self._input_callback_tag = (gobject.io_add_watch
622
389
(sys.stdin.fileno(),
633
400
def process_input(self, source, condition):
634
401
keys = self.screen.get_input()
635
translations = { "ctrl n": "down", # Emacs
636
"ctrl p": "up", # Emacs
637
"ctrl v": "page down", # Emacs
638
"meta v": "page up", # Emacs
639
" ": "page down", # less
640
"f": "page down", # less
641
"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
648
415
except KeyError: # :-)
651
if key == "q" or key == "Q":
418
if key == u"q" or key == u"Q":
654
elif key == "window resize":
421
elif key == u"window resize":
655
422
self.size = self.screen.get_cols_rows()
657
elif key == "ctrl l":
424
elif key == u"\f": # Ctrl-L
660
elif key == "l" or key == "D":
426
elif key == u"l" or key == u"D":
661
427
self.toggle_log_display()
663
elif key == "w" or key == "i":
429
elif key == u"w" or key == u"i":
664
430
self.change_log_display()
666
elif key == "?" or key == "f1" or key == "esc":
432
elif key == u"?" or key == u"f1":
667
433
if not self.log_visible:
668
434
self.log_visible = True
670
self.log_message_raw(("bold",
674
"l: Log window toggle",
675
"TAB: Switch window",
676
"w: Wrap (log lines)",
677
"v: Toggle verbose log",
679
self.log_message_raw(("bold",
685
"s: Start new checker",
436
self.log_message((u"bold",
437
u" ".join((u"q: Quit",
439
u"l: Log window toggle",
440
u"TAB: Switch window",
442
self.log_message((u"bold",
443
u" ".join((u"Clients:",
447
u"s: Start new checker",
692
452
if self.topwidget.get_focus() is self.logbox:
693
453
self.topwidget.set_focus(0)
695
455
self.topwidget.set_focus(self.logbox)
698
if self.log_level == 0:
700
self.log_message("Verbose mode: Off")
703
self.log_message("Verbose mode: On")
704
#elif (key == "end" or key == "meta >" or key == "G"
457
#elif (key == u"end" or key == u"meta >" or key == u"G"
706
459
# pass # xxx end-of-buffer
707
#elif (key == "home" or key == "meta <" or key == "g"
460
#elif (key == u"home" or key == u"meta <" or key == u"g"
709
462
# pass # xxx beginning-of-buffer
710
#elif key == "ctrl e" or key == "$":
463
#elif key == u"ctrl e" or key == u"$":
711
464
# pass # xxx move-end-of-line
712
#elif key == "ctrl a" or key == "^":
465
#elif key == u"ctrl a" or key == u"^":
713
466
# pass # xxx move-beginning-of-line
714
#elif key == "ctrl b" or key == "meta (" or key == "h":
467
#elif key == u"ctrl b" or key == u"meta (" or key == u"h":
715
468
# pass # xxx left
716
#elif key == "ctrl f" or key == "meta )" or key == "l":
469
#elif key == u"ctrl f" or key == u"meta )" or key == u"l":
717
470
# pass # xxx right
719
472
# pass # scroll up log
721
474
# pass # scroll down log
722
475
elif self.topwidget.selectable():
723
476
self.topwidget.keypress(self.size, key)