2
2
# -*- mode: python; coding: utf-8 -*-
4
# Mandos Monitor - Control and monitor the Mandos server
6
# Copyright © 2009-2014 Teddy Hogeborn
7
# Copyright © 2009-2014 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, condition, command):
178
self.logger('Checker for client {} (command "{}")'
179
' succeeded'.format(self.properties["Name"],
184
if os.WIFEXITED(condition):
185
self.logger('Checker for client {} (command "{}") failed'
187
.format(self.properties["Name"], command,
188
os.WEXITSTATUS(condition)))
189
elif os.WIFSIGNALED(condition):
190
self.logger('Checker for client {} (command "{}") was'
191
' killed by signal {}'
192
.format(self.properties["Name"], command,
193
os.WTERMSIG(condition)))
194
elif os.WCOREDUMP(condition):
195
self.logger('Checker for client {} (command "{}") dumped'
196
' core'.format(self.properties["Name"],
199
self.logger('Checker for client {} completed'
201
.format(self.properties["Name"]))
204
def checker_started(self, command):
205
"""Server signals that a checker started."""
206
self.logger('Client {} started checker "{}"'
207
.format(self.properties["Name"],
210
def got_secret(self):
211
self.logger('Client {} received its secret'
212
.format(self.properties["Name"]))
214
def need_approval(self, timeout, default):
216
message = 'Client {} needs approval within {} seconds'
218
message = 'Client {} will get its secret in {} seconds'
219
self.logger(message.format(self.properties["Name"],
222
def rejected(self, reason):
223
self.logger('Client {} was rejected; reason: {}'
224
.format(self.properties["Name"], reason))
226
90
def selectable(self):
227
91
"""Make this a "selectable" widget.
228
92
This overrides the method from urwid.FlowWidget."""
231
def rows(self, maxcolrow, focus=False):
95
def rows(self, (maxcol,), focus=False):
232
96
"""How many rows this widget will occupy might depend on
233
97
whether we have focus or not.
234
98
This overrides the method from urwid.FlowWidget"""
235
return self.current_widget(focus).rows(maxcolrow, focus=focus)
99
return self.current_widget(focus).rows((maxcol,), focus=focus)
237
101
def current_widget(self, focus=False):
238
102
if focus or self.opened:
242
106
def update(self):
243
107
"Called when what is visible on the screen should be updated."
244
108
# How to add standout mode to a style
245
with_standout = { "normal": "standout",
246
"bold": "bold-standout",
248
"underline-blink-standout",
249
"bold-underline-blink":
250
"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",
253
117
# Rebuild focus and non-focus widgets using current properties
255
# Base part of a client. Name!
256
base = '{name}: '.format(name=self.properties["Name"])
257
if not self.properties["Enabled"]:
259
self.using_timer(False)
260
elif self.properties["ApprovalPending"]:
261
timeout = datetime.timedelta(milliseconds
264
last_approval_request = isoformat_to_datetime(
265
self.properties["LastApprovalRequest"])
266
if last_approval_request is not None:
267
timer = max(timeout - (datetime.datetime.utcnow()
268
- last_approval_request),
269
datetime.timedelta())
271
timer = datetime.timedelta()
272
if self.properties["ApprovedByDefault"]:
273
message = "Approval in {}. (d)eny?"
275
message = "Denial in {}. (a)pprove?"
276
message = message.format(str(timer).rsplit(".", 1)[0])
277
self.using_timer(True)
278
elif self.properties["LastCheckerStatus"] != 0:
279
# When checker has failed, show timer until client expires
280
expires = self.properties["Expires"]
282
timer = datetime.timedelta(0)
284
expires = (datetime.datetime.strptime
285
(expires, '%Y-%m-%dT%H:%M:%S.%f'))
286
timer = max(expires - datetime.datetime.utcnow(),
287
datetime.timedelta())
288
message = ('A checker has failed! Time until client'
290
.format(str(timer).rsplit(".", 1)[0]))
291
self.using_timer(True)
294
self.using_timer(False)
295
self._text = "{}{}".format(base, message)
118
self._text = (u'name="%(name)s", enabled=%(enabled)s'
297
120
if not urwid.supports_unicode():
298
121
self._text = self._text.encode("ascii", "replace")
299
textlist = [("normal", self._text)]
122
textlist = [(u"normal", u"BLARGH: "), (u"bold", self._text)]
300
123
self._text_widget.set_text(textlist)
301
124
self._focus_text_widget.set_text([(with_standout[text[0]],
310
133
if self.update_hook is not None:
311
134
self.update_hook()
313
def update_timer(self):
314
"""called by gobject. Will indefinitely loop until
315
gobject.source_remove() on tag is called"""
317
return True # Keep calling this
319
def delete(self, **kwargs):
320
if self._update_timer_callback_tag is not None:
321
gobject.source_remove(self._update_timer_callback_tag)
322
self._update_timer_callback_tag = None
323
for match in self.match_objects:
325
self.match_objects = ()
326
137
if self.delete_hook is not None:
327
138
self.delete_hook(self)
328
return super(MandosClientWidget, self).delete(**kwargs)
330
def render(self, maxcolrow, focus=False):
140
def render(self, (maxcol,), focus=False):
331
141
"""Render differently if we have focus.
332
142
This overrides the method from urwid.FlowWidget"""
333
return self.current_widget(focus).render(maxcolrow,
143
return self.current_widget(focus).render((maxcol,),
336
def keypress(self, maxcolrow, key):
146
def keypress(self, (maxcol,), key):
338
148
This overrides the method from urwid.FlowWidget"""
340
self.proxy.Enable(dbus_interface = client_interface,
343
self.proxy.Disable(dbus_interface = client_interface,
346
self.proxy.Approve(dbus.Boolean(True, variant_level=1),
347
dbus_interface = client_interface,
350
self.proxy.Approve(dbus.Boolean(False, variant_level=1),
351
dbus_interface = client_interface,
353
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"_":
354
154
self.server_proxy_object.RemoveClient(self.proxy
358
self.proxy.StartChecker(dbus_interface = client_interface,
361
self.proxy.StopChecker(dbus_interface = client_interface,
364
self.proxy.CheckedOK(dbus_interface = client_interface,
157
self.proxy.StartChecker()
159
self.proxy.StopChecker()
161
self.proxy.CheckedOK()
367
# elif key == "p" or key == "=":
163
# elif key == u"p" or key == "=":
368
164
# self.proxy.pause()
369
# elif key == "u" or key == ":":
165
# elif key == u"u" or key == ":":
370
166
# self.proxy.unpause()
167
# elif key == u"RET":
376
def properties_changed(self, interface, properties, invalidated):
377
"""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.
378
175
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):
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:
401
197
"""This is the entire user interface - the whole screen
402
198
with boxes, lists of client widgets, etc.
404
def __init__(self, max_log_length=1000, log_level=1):
200
def __init__(self, max_log_length=1000):
405
201
DBusGMainLoop(set_as_default=True)
407
203
self.screen = urwid.curses_display.Screen()
409
205
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"),
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",
430
225
if urwid.supports_unicode():
431
self.divider = "─" # \u2500
432
#self.divider = "━" # \u2501
226
#self.divider = u"─" # \u2500
227
self.divider = u"━" # \u2501
434
#self.divider = "-" # \u002d
435
self.divider = "_" # \u005f
229
#self.divider = u"-" # \u002d
230
self.divider = u"_" # \u005f
437
232
self.screen.start()
454
247
# This keeps track of whether self.uilist currently has
455
248
# self.logbox in it or not
456
249
self.log_visible = True
457
self.log_wrap = "any"
250
self.log_wrap = u"any"
460
self.log_message_raw(("bold",
461
"Mandos Monitor version " + version))
462
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")
465
258
self.busname = domain + '.Mandos'
466
259
self.main_loop = gobject.MainLoop()
468
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))
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),
473
296
def rebuild(self):
474
297
"""This rebuilds the User Interface.
475
298
Call this when the widget layout needs to change"""
477
300
#self.uilist.append(urwid.ListBox(self.clients))
478
self.uilist.append(urwid.Frame(ConstrainedListBox(self.
301
self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
480
302
#header=urwid.Divider(),
483
urwid.Divider(div_char=
304
footer=urwid.Divider(div_char=self.divider)))
485
305
if self.log_visible:
486
306
self.uilist.append(self.logbox)
487
308
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:
493
timestamp = datetime.datetime.now().isoformat()
494
self.log_message_raw("{}: {}".format(timestamp, message),
497
def log_message_raw(self, markup, level=1):
310
def log_message(self, markup):
498
311
"""Add a log message to the log buffer."""
499
if level < self.log_level:
501
312
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
502
313
if (self.max_log_length
503
314
and len(self.log) > self.max_log_length):
504
315
del self.log[0:len(self.log)-self.max_log_length-1]
505
self.logbox.set_focus(len(self.logbox.body.contents),
509
317
def toggle_log_display(self):
510
318
"""Toggle visibility of the log buffer."""
511
319
self.log_visible = not self.log_visible
513
self.log_message("Log visibility changed to: {}"
514
.format(self.log_visible), level=0)
321
self.log_message(u"Log visibility changed to: "
322
+ unicode(self.log_visible))
516
324
def change_log_display(self):
517
325
"""Change type of log display.
518
326
Currently, this toggles wrapping of text lines."""
519
if self.log_wrap == "clip":
520
self.log_wrap = "any"
327
if self.log_wrap == u"clip":
328
self.log_wrap = u"any"
522
self.log_wrap = "clip"
330
self.log_wrap = u"clip"
523
331
for textwidget in self.log:
524
332
textwidget.set_wrap_mode(self.log_wrap)
525
self.log_message("Wrap mode: {}".format(self.log_wrap),
333
self.log_message(u"Wrap mode: " + self.log_wrap)
528
335
def find_and_remove_client(self, path, name):
529
"""Find a client by its object path and remove it.
336
"""Find an client from its object path and remove it.
531
338
This is connected to the ClientRemoved signal from the
532
339
Mandos server object."""
577
386
"""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
388
self._input_callback_tag = (gobject.io_add_watch
626
389
(sys.stdin.fileno(),
637
400
def process_input(self, source, condition):
638
401
keys = self.screen.get_input()
639
translations = { "ctrl n": "down", # Emacs
640
"ctrl p": "up", # Emacs
641
"ctrl v": "page down", # Emacs
642
"meta v": "page up", # Emacs
643
" ": "page down", # less
644
"f": "page down", # less
645
"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
652
415
except KeyError: # :-)
655
if key == "q" or key == "Q":
418
if key == u"q" or key == u"Q":
658
elif key == "window resize":
421
elif key == u"window resize":
659
422
self.size = self.screen.get_cols_rows()
661
elif key == "ctrl l":
424
elif key == u"\f": # Ctrl-L
664
elif key == "l" or key == "D":
426
elif key == u"l" or key == u"D":
665
427
self.toggle_log_display()
667
elif key == "w" or key == "i":
429
elif key == u"w" or key == u"i":
668
430
self.change_log_display()
670
elif key == "?" or key == "f1" or key == "esc":
671
if not self.log_visible:
672
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",
432
elif key == u"?" or key == u"f1":
433
self.log_message(u"Help!")
696
436
if self.topwidget.get_focus() is self.logbox:
697
437
self.topwidget.set_focus(0)
699
439
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"
710
# pass # xxx end-of-buffer
711
#elif (key == "home" or key == "meta <" or key == "g"
713
# pass # xxx beginning-of-buffer
714
#elif key == "ctrl e" or key == "$":
715
# pass # xxx move-end-of-line
716
#elif key == "ctrl a" or key == "^":
717
# pass # xxx move-beginning-of-line
718
#elif key == "ctrl b" or key == "meta (" or key == "h":
720
#elif key == "ctrl f" or key == "meta )" or key == "l":
723
# pass # scroll up log
725
# pass # scroll down log
441
elif (key == u"end" or key == u"meta >" or key == u"G"
443
pass # xxx end-of-buffer
444
elif (key == u"home" or key == u"meta <" or key == u"g"
446
pass # xxx beginning-of-buffer
447
elif key == u"ctrl e" or key == u"$":
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
726
459
elif self.topwidget.selectable():
727
460
self.topwidget.keypress(self.size, key)