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  • Committer: Teddy Hogeborn
  • Date: 2014-06-15 02:48:49 UTC
  • mto: (237.7.272 trunk)
  • mto: This revision was merged to the branch mainline in revision 317.
  • Revision ID: teddy@recompile.se-20140615024849-68x3q8g4yzadl33s
mandos: New "--no-zeroconf" option.  Also make "--socket=0" work.

* mandos (main): New "--no-zeroconf" option.  Also do not interpret
                 socket=0 as no socket.
* mandos-options.xml (zeroconf): New.
* mandos.conf (socket, zeroconf): New.
* mandos.xml (SYNOPSIS, OPTIONS): Added "--no-zeroconf".

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Lines of Context:
mandos-monitor
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3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
5
# 
6
 
# Copyright © 2009-2011 Teddy Hogeborn
7
 
# Copyright © 2009-2011 Björn Påhlsson
 
6
# Copyright © 2009-2014 Teddy Hogeborn
 
7
# Copyright © 2009-2014 Björn Påhlsson
8
8
# 
9
9
# This program is free software: you can redistribute it and/or modify
10
10
# it under the terms of the GNU General Public License as published by
17
17
#     GNU General Public License for more details.
18
18
# 
19
19
# You should have received a copy of the GNU General Public License
20
 
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
21
22
# 
22
 
# Contact the authors at <mandos@fukt.bsnet.se>.
 
23
# Contact the authors at <mandos@recompile.se>.
23
24
# 
24
25
 
25
26
from __future__ import (division, absolute_import, print_function,
26
27
                        unicode_literals)
 
28
try:
 
29
    from future_builtins import *
 
30
except ImportError:
 
31
    pass
27
32
 
28
33
import sys
29
34
import os
30
 
import signal
31
35
 
32
36
import datetime
33
37
 
35
39
import urwid
36
40
 
37
41
from dbus.mainloop.glib import DBusGMainLoop
38
 
import gobject
 
42
try:
 
43
    import gobject
 
44
except ImportError:
 
45
    from gi.repository import GObject as gobject
39
46
 
40
47
import dbus
41
48
 
42
 
import UserList
43
 
 
44
49
import locale
45
50
 
 
51
if sys.version_info[0] == 2:
 
52
    str = unicode
 
53
 
46
54
locale.setlocale(locale.LC_ALL, '')
47
55
 
48
56
import logging
49
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
50
58
 
51
59
# Some useful constants
52
 
domain = 'se.bsnet.fukt'
 
60
domain = 'se.recompile'
53
61
server_interface = domain + '.Mandos'
54
62
client_interface = domain + '.Mandos.Client'
55
 
version = "1.3.1"
56
 
 
57
 
# Always run in monochrome mode
58
 
urwid.curses_display.curses.has_colors = lambda : False
59
 
 
60
 
# Urwid doesn't support blinking, but we want it.  Since we have no
61
 
# use for underline on its own, we make underline also always blink.
62
 
urwid.curses_display.curses.A_UNDERLINE |= (
63
 
    urwid.curses_display.curses.A_BLINK)
 
63
version = "1.6.5"
64
64
 
65
65
def isoformat_to_datetime(iso):
66
66
    "Parse an ISO 8601 date string to a datetime.datetime()"
83
83
    properties and calls a hook function when any of them are
84
84
    changed.
85
85
    """
86
 
    def __init__(self, proxy_object=None, *args, **kwargs):
 
86
    def __init__(self, proxy_object=None, properties=None, **kwargs):
87
87
        self.proxy = proxy_object # Mandos Client proxy object
88
 
        
89
 
        self.properties = dict()
 
88
        self.properties = dict() if properties is None else properties
90
89
        self.property_changed_match = (
91
90
            self.proxy.connect_to_signal("PropertyChanged",
92
 
                                         self.property_changed,
 
91
                                         self._property_changed,
93
92
                                         client_interface,
94
93
                                         byte_arrays=True))
95
94
        
96
 
        self.properties.update(
97
 
            self.proxy.GetAll(client_interface,
98
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
99
 
 
100
 
        #XXX This breaks good super behaviour
101
 
#        super(MandosClientPropertyCache, self).__init__(
102
 
#            *args, **kwargs)
 
95
        if properties is None:
 
96
            self.properties.update(
 
97
                self.proxy.GetAll(client_interface,
 
98
                                  dbus_interface
 
99
                                  = dbus.PROPERTIES_IFACE))
 
100
        
 
101
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
102
    
 
103
    def _property_changed(self, property, value):
 
104
        """Helper which takes positional arguments"""
 
105
        return self.property_changed(property=property, value=value)
103
106
    
104
107
    def property_changed(self, property=None, value=None):
105
108
        """This is called whenever we get a PropertyChanged signal
108
111
        # Update properties dict with new value
109
112
        self.properties[property] = value
110
113
    
111
 
    def delete(self, *args, **kwargs):
 
114
    def delete(self):
112
115
        self.property_changed_match.remove()
113
 
        super(MandosClientPropertyCache, self).__init__(
114
 
            *args, **kwargs)
115
116
 
116
117
 
117
118
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
119
120
    """
120
121
    
121
122
    def __init__(self, server_proxy_object=None, update_hook=None,
122
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
123
                 delete_hook=None, logger=None, **kwargs):
123
124
        # Called on update
124
125
        self.update_hook = update_hook
125
126
        # Called on delete
130
131
        self.logger = logger
131
132
        
132
133
        self._update_timer_callback_tag = None
133
 
        self._update_timer_callback_lock = 0
134
 
        self.last_checker_failed = False
135
134
        
136
135
        # The widget shown normally
137
136
        self._text_widget = urwid.Text("")
138
137
        # The widget shown when we have focus
139
138
        self._focus_text_widget = urwid.Text("")
140
 
        super(MandosClientWidget, self).__init__(
141
 
            update_hook=update_hook, delete_hook=delete_hook,
142
 
            *args, **kwargs)
 
139
        super(MandosClientWidget, self).__init__(**kwargs)
143
140
        self.update()
144
141
        self.opened = False
145
142
        
146
 
        last_checked_ok = isoformat_to_datetime(self.properties
147
 
                                                ["LastCheckedOK"])
148
 
        if last_checked_ok is None:
149
 
            self.last_checker_failed = True
150
 
        else:
151
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
152
 
                                         - last_checked_ok)
153
 
                                        > datetime.timedelta
154
 
                                        (milliseconds=
155
 
                                         self.properties
156
 
                                         ["Interval"]))
157
 
        
158
 
        if self.last_checker_failed:
159
 
            self.using_timer(True)
160
 
        
161
 
        if self.need_approval:
162
 
            self.using_timer(True)
163
 
        
164
143
        self.match_objects = (
165
144
            self.proxy.connect_to_signal("CheckerCompleted",
166
145
                                         self.checker_completed,
182
161
                                         self.rejected,
183
162
                                         client_interface,
184
163
                                         byte_arrays=True))
185
 
        #self.logger('Created client %s' % (self.properties["Name"]))
 
164
        #self.logger('Created client {0}'
 
165
        #            .format(self.properties["Name"]))
186
166
    
187
 
    def property_changed(self, property=None, value=None):
188
 
        super(self, MandosClientWidget).property_changed(property,
189
 
                                                         value)
190
 
        if property == "ApprovalPending":
191
 
            using_timer(bool(value))
192
 
        
193
167
    def using_timer(self, flag):
194
168
        """Call this method with True or False when timer should be
195
169
        activated or deactivated.
196
170
        """
197
 
        old = self._update_timer_callback_lock
198
 
        if flag:
199
 
            self._update_timer_callback_lock += 1
200
 
        else:
201
 
            self._update_timer_callback_lock -= 1
202
 
        if old == 0 and self._update_timer_callback_lock:
 
171
        if flag and self._update_timer_callback_tag is None:
 
172
            # Will update the shown timer value every second
203
173
            self._update_timer_callback_tag = (gobject.timeout_add
204
174
                                               (1000,
205
175
                                                self.update_timer))
206
 
        elif old and self._update_timer_callback_lock == 0:
 
176
        elif not (flag or self._update_timer_callback_tag is None):
207
177
            gobject.source_remove(self._update_timer_callback_tag)
208
178
            self._update_timer_callback_tag = None
209
179
    
210
180
    def checker_completed(self, exitstatus, condition, command):
211
181
        if exitstatus == 0:
212
 
            if self.last_checker_failed:
213
 
                self.last_checker_failed = False
214
 
                self.using_timer(False)
215
 
            #self.logger('Checker for client %s (command "%s")'
216
 
            #            ' was successful'
217
 
            #            % (self.properties["Name"], command))
218
182
            self.update()
219
183
            return
220
184
        # Checker failed
221
 
        if not self.last_checker_failed:
222
 
            self.last_checker_failed = True
223
 
            self.using_timer(True)
224
185
        if os.WIFEXITED(condition):
225
 
            self.logger('Checker for client %s (command "%s")'
226
 
                        ' failed with exit code %s'
227
 
                        % (self.properties["Name"], command,
228
 
                           os.WEXITSTATUS(condition)))
 
186
            self.logger('Checker for client {0} (command "{1}")'
 
187
                        ' failed with exit code {2}'
 
188
                        .format(self.properties["Name"], command,
 
189
                                os.WEXITSTATUS(condition)))
229
190
        elif os.WIFSIGNALED(condition):
230
 
            self.logger('Checker for client %s (command "%s")'
231
 
                        ' was killed by signal %s'
232
 
                        % (self.properties["Name"], command,
233
 
                           os.WTERMSIG(condition)))
 
191
            self.logger('Checker for client {0} (command "{1}") was'
 
192
                        ' killed by signal {2}'
 
193
                        .format(self.properties["Name"], command,
 
194
                                os.WTERMSIG(condition)))
234
195
        elif os.WCOREDUMP(condition):
235
 
            self.logger('Checker for client %s (command "%s")'
 
196
            self.logger('Checker for client {0} (command "{1}")'
236
197
                        ' dumped core'
237
 
                        % (self.properties["Name"], command))
 
198
                        .format(self.properties["Name"], command))
238
199
        else:
239
 
            self.logger('Checker for client %s completed'
240
 
                        ' mysteriously')
 
200
            self.logger('Checker for client {0} completed'
 
201
                        ' mysteriously'
 
202
                        .format(self.properties["Name"]))
241
203
        self.update()
242
204
    
243
205
    def checker_started(self, command):
244
 
        #self.logger('Client %s started checker "%s"'
245
 
        #            % (self.properties["Name"], unicode(command)))
 
206
        """Server signals that a checker started. This could be useful
 
207
           to log in the future. """
 
208
        #self.logger('Client {0} started checker "{1}"'
 
209
        #            .format(self.properties["Name"],
 
210
        #                    str(command)))
246
211
        pass
247
212
    
248
213
    def got_secret(self):
249
 
        self.last_checker_failed = False
250
 
        self.logger('Client %s received its secret'
251
 
                    % self.properties["Name"])
 
214
        self.logger('Client {0} received its secret'
 
215
                    .format(self.properties["Name"]))
252
216
    
253
217
    def need_approval(self, timeout, default):
254
218
        if not default:
255
 
            message = 'Client %s needs approval within %s seconds'
 
219
            message = 'Client {0} needs approval within {1} seconds'
256
220
        else:
257
 
            message = 'Client %s will get its secret in %s seconds'
258
 
        self.logger(message
259
 
                    % (self.properties["Name"], timeout/1000))
260
 
        self.using_timer(True)
 
221
            message = 'Client {0} will get its secret in {1} seconds'
 
222
        self.logger(message.format(self.properties["Name"],
 
223
                                   timeout/1000))
261
224
    
262
225
    def rejected(self, reason):
263
 
        self.logger('Client %s was rejected; reason: %s'
264
 
                    % (self.properties["Name"], reason))
 
226
        self.logger('Client {0} was rejected; reason: {1}'
 
227
                    .format(self.properties["Name"], reason))
265
228
    
266
229
    def selectable(self):
267
230
        """Make this a "selectable" widget.
289
252
                          "bold-underline-blink":
290
253
                              "bold-underline-blink-standout",
291
254
                          }
292
 
 
 
255
        
293
256
        # Rebuild focus and non-focus widgets using current properties
294
 
 
 
257
        
295
258
        # Base part of a client. Name!
296
 
        base = ('%(name)s: '
297
 
                      % {"name": self.properties["Name"]})
 
259
        base = '{name}: '.format(name=self.properties["Name"])
298
260
        if not self.properties["Enabled"]:
299
261
            message = "DISABLED"
 
262
            self.using_timer(False)
300
263
        elif self.properties["ApprovalPending"]:
301
264
            timeout = datetime.timedelta(milliseconds
302
265
                                         = self.properties
304
267
            last_approval_request = isoformat_to_datetime(
305
268
                self.properties["LastApprovalRequest"])
306
269
            if last_approval_request is not None:
307
 
                timer = timeout - (datetime.datetime.utcnow()
308
 
                                   - last_approval_request)
 
270
                timer = max(timeout - (datetime.datetime.utcnow()
 
271
                                       - last_approval_request),
 
272
                            datetime.timedelta())
309
273
            else:
310
274
                timer = datetime.timedelta()
311
275
            if self.properties["ApprovedByDefault"]:
312
 
                message = "Approval in %s. (d)eny?"
313
 
            else:
314
 
                message = "Denial in %s. (a)pprove?"
315
 
            message = message % unicode(timer).rsplit(".", 1)[0]
316
 
        elif self.last_checker_failed:
317
 
            timeout = datetime.timedelta(milliseconds
318
 
                                         = self.properties
319
 
                                         ["Timeout"])
320
 
            last_ok = isoformat_to_datetime(
321
 
                max((self.properties["LastCheckedOK"]
322
 
                     or self.properties["Created"]),
323
 
                    self.properties["LastEnabled"]))
324
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
276
                message = "Approval in {0}. (d)eny?"
 
277
            else:
 
278
                message = "Denial in {0}. (a)pprove?"
 
279
            message = message.format(str(timer).rsplit(".", 1)[0])
 
280
            self.using_timer(True)
 
281
        elif self.properties["LastCheckerStatus"] != 0:
 
282
            # When checker has failed, show timer until client expires
 
283
            expires = self.properties["Expires"]
 
284
            if expires == "":
 
285
                timer = datetime.timedelta(0)
 
286
            else:
 
287
                expires = (datetime.datetime.strptime
 
288
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
289
                timer = max(expires - datetime.datetime.utcnow(),
 
290
                            datetime.timedelta())
325
291
            message = ('A checker has failed! Time until client'
326
 
                       ' gets disabled: %s'
327
 
                           % unicode(timer).rsplit(".", 1)[0])
 
292
                       ' gets disabled: {0}'
 
293
                       .format(str(timer).rsplit(".", 1)[0]))
 
294
            self.using_timer(True)
328
295
        else:
329
296
            message = "enabled"
330
 
        self._text = "%s%s" % (base, message)
331
 
            
 
297
            self.using_timer(False)
 
298
        self._text = "{0}{1}".format(base, message)
 
299
        
332
300
        if not urwid.supports_unicode():
333
301
            self._text = self._text.encode("ascii", "replace")
334
302
        textlist = [("normal", self._text)]
346
314
            self.update_hook()
347
315
    
348
316
    def update_timer(self):
349
 
        "called by gobject"
 
317
        """called by gobject. Will indefinitely loop until
 
318
        gobject.source_remove() on tag is called"""
350
319
        self.update()
351
320
        return True             # Keep calling this
352
321
    
353
 
    def delete(self, *args, **kwargs):
 
322
    def delete(self, **kwargs):
354
323
        if self._update_timer_callback_tag is not None:
355
324
            gobject.source_remove(self._update_timer_callback_tag)
356
325
            self._update_timer_callback_tag = None
359
328
        self.match_objects = ()
360
329
        if self.delete_hook is not None:
361
330
            self.delete_hook(self)
362
 
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
331
        return super(MandosClientWidget, self).delete(**kwargs)
363
332
    
364
333
    def render(self, maxcolrow, focus=False):
365
334
        """Render differently if we have focus.
407
376
        else:
408
377
            return key
409
378
    
410
 
    def property_changed(self, property=None, value=None,
411
 
                         *args, **kwargs):
 
379
    def property_changed(self, property=None, **kwargs):
412
380
        """Call self.update() if old value is not new value.
413
381
        This overrides the method from MandosClientPropertyCache"""
414
 
        property_name = unicode(property)
 
382
        property_name = str(property)
415
383
        old_value = self.properties.get(property_name)
416
384
        super(MandosClientWidget, self).property_changed(
417
 
            property=property, value=value, *args, **kwargs)
 
385
            property=property, **kwargs)
418
386
        if self.properties.get(property_name) != old_value:
419
387
            self.update()
420
388
 
424
392
    "down" key presses, thus not allowing any containing widgets to
425
393
    use them as an excuse to shift focus away from this widget.
426
394
    """
427
 
    def keypress(self, maxcolrow, key):
428
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
395
    def keypress(self, *args, **kwargs):
 
396
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
429
397
        if ret in ("up", "down"):
430
398
            return
431
399
        return ret
444
412
                ("normal",
445
413
                 "default", "default", None),
446
414
                ("bold",
447
 
                 "default", "default", "bold"),
 
415
                 "bold", "default", "bold"),
448
416
                ("underline-blink",
449
 
                 "default", "default", "underline"),
 
417
                 "underline,blink", "default", "underline,blink"),
450
418
                ("standout",
451
 
                 "default", "default", "standout"),
 
419
                 "standout", "default", "standout"),
452
420
                ("bold-underline-blink",
453
 
                 "default", "default", ("bold", "underline")),
 
421
                 "bold,underline,blink", "default", "bold,underline,blink"),
454
422
                ("bold-standout",
455
 
                 "default", "default", ("bold", "standout")),
 
423
                 "bold,standout", "default", "bold,standout"),
456
424
                ("underline-blink-standout",
457
 
                 "default", "default", ("underline", "standout")),
 
425
                 "underline,blink,standout", "default",
 
426
                 "underline,blink,standout"),
458
427
                ("bold-underline-blink-standout",
459
 
                 "default", "default", ("bold", "underline",
460
 
                                          "standout")),
 
428
                 "bold,underline,blink,standout", "default",
 
429
                 "bold,underline,blink,standout"),
461
430
                ))
462
431
        
463
432
        if urwid.supports_unicode():
495
464
        
496
465
        self.busname = domain + '.Mandos'
497
466
        self.main_loop = gobject.MainLoop()
498
 
        self.bus = dbus.SystemBus()
499
 
        mandos_dbus_objc = self.bus.get_object(
500
 
            self.busname, "/", follow_name_owner_changes=True)
501
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
502
 
                                          dbus_interface
503
 
                                          = server_interface)
504
 
        try:
505
 
            mandos_clients = (self.mandos_serv
506
 
                              .GetAllClientsWithProperties())
507
 
        except dbus.exceptions.DBusException:
508
 
            mandos_clients = dbus.Dictionary()
509
 
        
510
 
        (self.mandos_serv
511
 
         .connect_to_signal("ClientRemoved",
512
 
                            self.find_and_remove_client,
513
 
                            dbus_interface=server_interface,
514
 
                            byte_arrays=True))
515
 
        (self.mandos_serv
516
 
         .connect_to_signal("ClientAdded",
517
 
                            self.add_new_client,
518
 
                            dbus_interface=server_interface,
519
 
                            byte_arrays=True))
520
 
        (self.mandos_serv
521
 
         .connect_to_signal("ClientNotFound",
522
 
                            self.client_not_found,
523
 
                            dbus_interface=server_interface,
524
 
                            byte_arrays=True))
525
 
        for path, client in mandos_clients.iteritems():
526
 
            client_proxy_object = self.bus.get_object(self.busname,
527
 
                                                      path)
528
 
            self.add_client(MandosClientWidget(server_proxy_object
529
 
                                               =self.mandos_serv,
530
 
                                               proxy_object
531
 
                                               =client_proxy_object,
532
 
                                               properties=client,
533
 
                                               update_hook
534
 
                                               =self.refresh,
535
 
                                               delete_hook
536
 
                                               =self.remove_client,
537
 
                                               logger
538
 
                                               =self.log_message),
539
 
                            path=path)
540
467
    
541
468
    def client_not_found(self, fingerprint, address):
542
 
        self.log_message(("Client with address %s and fingerprint %s"
543
 
                          " could not be found" % (address,
544
 
                                                    fingerprint)))
 
469
        self.log_message("Client with address {0} and fingerprint"
 
470
                         " {1} could not be found"
 
471
                         .format(address, fingerprint))
545
472
    
546
473
    def rebuild(self):
547
474
        """This rebuilds the User Interface.
557
484
                                                     self.divider)))
558
485
        if self.log_visible:
559
486
            self.uilist.append(self.logbox)
560
 
            pass
561
487
        self.topwidget = urwid.Pile(self.uilist)
562
488
    
563
489
    def log_message(self, message):
 
490
        """Log message formatted with timestamp"""
564
491
        timestamp = datetime.datetime.now().isoformat()
565
492
        self.log_message_raw(timestamp + ": " + message)
566
493
    
579
506
        self.log_visible = not self.log_visible
580
507
        self.rebuild()
581
508
        #self.log_message("Log visibility changed to: "
582
 
        #                 + unicode(self.log_visible))
 
509
        #                 + str(self.log_visible))
583
510
    
584
511
    def change_log_display(self):
585
512
        """Change type of log display.
601
528
            client = self.clients_dict[path]
602
529
        except KeyError:
603
530
            # not found?
604
 
            self.log_message("Unknown client %r (%r) removed", name,
605
 
                             path)
 
531
            self.log_message("Unknown client {0!r} ({1!r}) removed"
 
532
                             .format(name, path))
606
533
            return
607
534
        client.delete()
608
535
    
625
552
        if path is None:
626
553
            path = client.proxy.object_path
627
554
        self.clients_dict[path] = client
628
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
555
        self.clients.sort(key=lambda c: c.properties["Name"])
629
556
        self.refresh()
630
557
    
631
558
    def remove_client(self, client, path=None):
633
560
        if path is None:
634
561
            path = client.proxy.object_path
635
562
        del self.clients_dict[path]
636
 
        if not self.clients_dict:
637
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
638
 
            # is completely emptied, we need to recreate it.
639
 
            self.clients = urwid.SimpleListWalker([])
640
 
            self.rebuild()
641
563
        self.refresh()
642
564
    
643
565
    def refresh(self):
647
569
    
648
570
    def run(self):
649
571
        """Start the main loop and exit when it's done."""
 
572
        self.bus = dbus.SystemBus()
 
573
        mandos_dbus_objc = self.bus.get_object(
 
574
            self.busname, "/", follow_name_owner_changes=True)
 
575
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
576
                                          dbus_interface
 
577
                                          = server_interface)
 
578
        try:
 
579
            mandos_clients = (self.mandos_serv
 
580
                              .GetAllClientsWithProperties())
 
581
            if not mandos_clients:
 
582
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
583
        except dbus.exceptions.DBusException:
 
584
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
585
            mandos_clients = dbus.Dictionary()
 
586
        
 
587
        (self.mandos_serv
 
588
         .connect_to_signal("ClientRemoved",
 
589
                            self.find_and_remove_client,
 
590
                            dbus_interface=server_interface,
 
591
                            byte_arrays=True))
 
592
        (self.mandos_serv
 
593
         .connect_to_signal("ClientAdded",
 
594
                            self.add_new_client,
 
595
                            dbus_interface=server_interface,
 
596
                            byte_arrays=True))
 
597
        (self.mandos_serv
 
598
         .connect_to_signal("ClientNotFound",
 
599
                            self.client_not_found,
 
600
                            dbus_interface=server_interface,
 
601
                            byte_arrays=True))
 
602
        for path, client in mandos_clients.items():
 
603
            client_proxy_object = self.bus.get_object(self.busname,
 
604
                                                      path)
 
605
            self.add_client(MandosClientWidget(server_proxy_object
 
606
                                               =self.mandos_serv,
 
607
                                               proxy_object
 
608
                                               =client_proxy_object,
 
609
                                               properties=client,
 
610
                                               update_hook
 
611
                                               =self.refresh,
 
612
                                               delete_hook
 
613
                                               =self.remove_client,
 
614
                                               logger
 
615
                                               =self.log_message),
 
616
                            path=path)
 
617
        
650
618
        self.refresh()
651
619
        self._input_callback_tag = (gobject.io_add_watch
652
620
                                    (sys.stdin.fileno(),
749
717
    ui.run()
750
718
except KeyboardInterrupt:
751
719
    ui.screen.stop()
752
 
except Exception, e:
753
 
    ui.log_message(unicode(e))
 
720
except Exception as e:
 
721
    ui.log_message(str(e))
754
722
    ui.screen.stop()
755
723
    raise