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Viewing changes to mandos-monitor

  • Committer: Teddy Hogeborn
  • Date: 2011-07-16 00:29:19 UTC
  • Revision ID: teddy@fukt.bsnet.se-20110716002919-r77yikuiulj42o40
* initramfs-tools-script: Abort if plugin-runner is missing.  Removed
                          workaround for Debian bug #633582; the
                          workaround required getopt, which can not be
                          guaranteed.
* plugin-runner.c (main): Work around Debian bug #633582.
* plugins.d/mandos-client.c (main): - '' -

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mandos-monitor
3
3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
5
# 
6
 
# Copyright © 2009-2012 Teddy Hogeborn
7
 
# Copyright © 2009-2012 Björn Påhlsson
 
6
# Copyright © 2009-2011 Teddy Hogeborn
 
7
# Copyright © 2009-2011 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
21
 
# <http://www.gnu.org/licenses/>.
 
20
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
22
21
# 
23
 
# Contact the authors at <mandos@recompile.se>.
 
22
# Contact the authors at <mandos@fukt.bsnet.se>.
24
23
# 
25
24
 
26
 
from __future__ import (division, absolute_import, print_function,
27
 
                        unicode_literals)
28
 
try:
29
 
    from future_builtins import *
30
 
except ImportError:
31
 
    pass
 
25
from __future__ import division, absolute_import, print_function, unicode_literals
32
26
 
33
27
import sys
34
28
import os
40
34
import urwid
41
35
 
42
36
from dbus.mainloop.glib import DBusGMainLoop
43
 
try:
44
 
    import gobject
45
 
except ImportError:
46
 
    from gi.repository import GObject as gobject
 
37
import gobject
47
38
 
48
39
import dbus
49
40
 
 
41
import UserList
 
42
 
50
43
import locale
51
44
 
52
 
if sys.version_info[0] == 2:
53
 
    str = unicode
54
 
 
55
45
locale.setlocale(locale.LC_ALL, '')
56
46
 
57
47
import logging
58
48
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
59
49
 
60
50
# Some useful constants
61
 
domain = 'se.recompile'
 
51
domain = 'se.bsnet.fukt'
62
52
server_interface = domain + '.Mandos'
63
53
client_interface = domain + '.Mandos.Client'
64
 
version = "1.6.1"
 
54
version = "1.3.0"
 
55
 
 
56
# Always run in monochrome mode
 
57
urwid.curses_display.curses.has_colors = lambda : False
 
58
 
 
59
# Urwid doesn't support blinking, but we want it.  Since we have no
 
60
# use for underline on its own, we make underline also always blink.
 
61
urwid.curses_display.curses.A_UNDERLINE |= (
 
62
    urwid.curses_display.curses.A_BLINK)
65
63
 
66
64
def isoformat_to_datetime(iso):
67
65
    "Parse an ISO 8601 date string to a datetime.datetime()"
84
82
    properties and calls a hook function when any of them are
85
83
    changed.
86
84
    """
87
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
85
    def __init__(self, proxy_object=None, *args, **kwargs):
88
86
        self.proxy = proxy_object # Mandos Client proxy object
89
 
        self.properties = dict() if properties is None else properties
90
 
        self.property_changed_match = (
91
 
            self.proxy.connect_to_signal("PropertyChanged",
92
 
                                         self._property_changed,
93
 
                                         client_interface,
94
 
                                         byte_arrays=True))
95
 
        
96
 
        if properties is None:
97
 
            self.properties.update(
98
 
                self.proxy.GetAll(client_interface,
99
 
                                  dbus_interface
100
 
                                  = dbus.PROPERTIES_IFACE))
101
 
        
102
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
103
 
    
104
 
    def _property_changed(self, property, value):
105
 
        """Helper which takes positional arguments"""
106
 
        return self.property_changed(property=property, value=value)
 
87
        
 
88
        self.properties = dict()
 
89
        self.proxy.connect_to_signal("PropertyChanged",
 
90
                                     self.property_changed,
 
91
                                     client_interface,
 
92
                                     byte_arrays=True)
 
93
        
 
94
        self.properties.update(
 
95
            self.proxy.GetAll(client_interface,
 
96
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
97
 
 
98
        #XXX This break good super behaviour!
 
99
#        super(MandosClientPropertyCache, self).__init__(
 
100
#            *args, **kwargs)
107
101
    
108
102
    def property_changed(self, property=None, value=None):
109
103
        """This is called whenever we get a PropertyChanged signal
111
105
        """
112
106
        # Update properties dict with new value
113
107
        self.properties[property] = value
114
 
    
115
 
    def delete(self):
116
 
        self.property_changed_match.remove()
117
108
 
118
109
 
119
110
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
121
112
    """
122
113
    
123
114
    def __init__(self, server_proxy_object=None, update_hook=None,
124
 
                 delete_hook=None, logger=None, **kwargs):
 
115
                 delete_hook=None, logger=None, *args, **kwargs):
125
116
        # Called on update
126
117
        self.update_hook = update_hook
127
118
        # Called on delete
132
123
        self.logger = logger
133
124
        
134
125
        self._update_timer_callback_tag = None
 
126
        self._update_timer_callback_lock = 0
 
127
        self.last_checker_failed = False
135
128
        
136
129
        # The widget shown normally
137
130
        self._text_widget = urwid.Text("")
138
131
        # The widget shown when we have focus
139
132
        self._focus_text_widget = urwid.Text("")
140
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
133
        super(MandosClientWidget, self).__init__(
 
134
            update_hook=update_hook, delete_hook=delete_hook,
 
135
            *args, **kwargs)
141
136
        self.update()
142
137
        self.opened = False
143
138
        
144
 
        self.match_objects = (
145
 
            self.proxy.connect_to_signal("CheckerCompleted",
146
 
                                         self.checker_completed,
147
 
                                         client_interface,
148
 
                                         byte_arrays=True),
149
 
            self.proxy.connect_to_signal("CheckerStarted",
150
 
                                         self.checker_started,
151
 
                                         client_interface,
152
 
                                         byte_arrays=True),
153
 
            self.proxy.connect_to_signal("GotSecret",
154
 
                                         self.got_secret,
155
 
                                         client_interface,
156
 
                                         byte_arrays=True),
157
 
            self.proxy.connect_to_signal("NeedApproval",
158
 
                                         self.need_approval,
159
 
                                         client_interface,
160
 
                                         byte_arrays=True),
161
 
            self.proxy.connect_to_signal("Rejected",
162
 
                                         self.rejected,
163
 
                                         client_interface,
164
 
                                         byte_arrays=True))
165
 
        #self.logger('Created client {0}'
166
 
        #            .format(self.properties["Name"]))
 
139
        last_checked_ok = isoformat_to_datetime(self.properties
 
140
                                                ["LastCheckedOK"])
 
141
        if last_checked_ok is None:
 
142
            self.last_checker_failed = True
 
143
        else:
 
144
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
145
                                         - last_checked_ok)
 
146
                                        > datetime.timedelta
 
147
                                        (milliseconds=
 
148
                                         self.properties
 
149
                                         ["Interval"]))
 
150
        
 
151
        if self.last_checker_failed:
 
152
            self.using_timer(True)
 
153
        
 
154
        if self.need_approval:
 
155
            self.using_timer(True)
 
156
        
 
157
        self.proxy.connect_to_signal("CheckerCompleted",
 
158
                                     self.checker_completed,
 
159
                                     client_interface,
 
160
                                     byte_arrays=True)
 
161
        self.proxy.connect_to_signal("CheckerStarted",
 
162
                                     self.checker_started,
 
163
                                     client_interface,
 
164
                                     byte_arrays=True)
 
165
        self.proxy.connect_to_signal("GotSecret",
 
166
                                     self.got_secret,
 
167
                                     client_interface,
 
168
                                     byte_arrays=True)
 
169
        self.proxy.connect_to_signal("NeedApproval",
 
170
                                     self.need_approval,
 
171
                                     client_interface,
 
172
                                     byte_arrays=True)
 
173
        self.proxy.connect_to_signal("Rejected",
 
174
                                     self.rejected,
 
175
                                     client_interface,
 
176
                                     byte_arrays=True)
167
177
    
 
178
    def property_changed(self, property=None, value=None):
 
179
        super(self, MandosClientWidget).property_changed(property,
 
180
                                                         value)
 
181
        if property == "ApprovalPending":
 
182
            using_timer(bool(value))
 
183
        
168
184
    def using_timer(self, flag):
169
185
        """Call this method with True or False when timer should be
170
186
        activated or deactivated.
171
187
        """
172
 
        if flag and self._update_timer_callback_tag is None:
173
 
            # Will update the shown timer value every second
 
188
        old = self._update_timer_callback_lock
 
189
        if flag:
 
190
            self._update_timer_callback_lock += 1
 
191
        else:
 
192
            self._update_timer_callback_lock -= 1
 
193
        if old == 0 and self._update_timer_callback_lock:
174
194
            self._update_timer_callback_tag = (gobject.timeout_add
175
195
                                               (1000,
176
196
                                                self.update_timer))
177
 
        elif not (flag or self._update_timer_callback_tag is None):
 
197
        elif old and self._update_timer_callback_lock == 0:
178
198
            gobject.source_remove(self._update_timer_callback_tag)
179
199
            self._update_timer_callback_tag = None
180
200
    
181
201
    def checker_completed(self, exitstatus, condition, command):
182
202
        if exitstatus == 0:
 
203
            if self.last_checker_failed:
 
204
                self.last_checker_failed = False
 
205
                self.using_timer(False)
 
206
            #self.logger('Checker for client %s (command "%s")'
 
207
            #            ' was successful'
 
208
            #            % (self.properties["Name"], command))
183
209
            self.update()
184
210
            return
185
211
        # Checker failed
 
212
        if not self.last_checker_failed:
 
213
            self.last_checker_failed = True
 
214
            self.using_timer(True)
186
215
        if os.WIFEXITED(condition):
187
 
            self.logger('Checker for client {0} (command "{1}")'
188
 
                        ' failed with exit code {2}'
189
 
                        .format(self.properties["Name"], command,
190
 
                                os.WEXITSTATUS(condition)))
 
216
            self.logger('Checker for client %s (command "%s")'
 
217
                        ' failed with exit code %s'
 
218
                        % (self.properties["Name"], command,
 
219
                           os.WEXITSTATUS(condition)))
191
220
        elif os.WIFSIGNALED(condition):
192
 
            self.logger('Checker for client {0} (command "{1}") was'
193
 
                        ' killed by signal {2}'
194
 
                        .format(self.properties["Name"], command,
195
 
                                os.WTERMSIG(condition)))
 
221
            self.logger('Checker for client %s (command "%s")'
 
222
                        ' was killed by signal %s'
 
223
                        % (self.properties["Name"], command,
 
224
                           os.WTERMSIG(condition)))
196
225
        elif os.WCOREDUMP(condition):
197
 
            self.logger('Checker for client {0} (command "{1}")'
 
226
            self.logger('Checker for client %s (command "%s")'
198
227
                        ' dumped core'
199
 
                        .format(self.properties["Name"], command))
 
228
                        % (self.properties["Name"], command))
200
229
        else:
201
 
            self.logger('Checker for client {0} completed'
202
 
                        ' mysteriously'
203
 
                        .format(self.properties["Name"]))
 
230
            self.logger('Checker for client %s completed'
 
231
                        ' mysteriously')
204
232
        self.update()
205
233
    
206
234
    def checker_started(self, command):
207
 
        """Server signals that a checker started. This could be useful
208
 
           to log in the future. """
209
 
        #self.logger('Client {0} started checker "{1}"'
210
 
        #            .format(self.properties["Name"],
211
 
        #                    str(command)))
 
235
        #self.logger('Client %s started checker "%s"'
 
236
        #            % (self.properties["Name"], unicode(command)))
212
237
        pass
213
238
    
214
239
    def got_secret(self):
215
 
        self.logger('Client {0} received its secret'
216
 
                    .format(self.properties["Name"]))
 
240
        self.last_checker_failed = False
 
241
        self.logger('Client %s received its secret'
 
242
                    % self.properties["Name"])
217
243
    
218
244
    def need_approval(self, timeout, default):
219
245
        if not default:
220
 
            message = 'Client {0} needs approval within {1} seconds'
 
246
            message = 'Client %s needs approval within %s seconds'
221
247
        else:
222
 
            message = 'Client {0} will get its secret in {1} seconds'
223
 
        self.logger(message.format(self.properties["Name"],
224
 
                                   timeout/1000))
 
248
            message = 'Client %s will get its secret in %s seconds'
 
249
        self.logger(message
 
250
                    % (self.properties["Name"], timeout/1000))
 
251
        self.using_timer(True)
225
252
    
226
253
    def rejected(self, reason):
227
 
        self.logger('Client {0} was rejected; reason: {1}'
228
 
                    .format(self.properties["Name"], reason))
 
254
        self.logger('Client %s was rejected; reason: %s'
 
255
                    % (self.properties["Name"], reason))
229
256
    
230
257
    def selectable(self):
231
258
        """Make this a "selectable" widget.
253
280
                          "bold-underline-blink":
254
281
                              "bold-underline-blink-standout",
255
282
                          }
256
 
        
 
283
 
257
284
        # Rebuild focus and non-focus widgets using current properties
258
 
        
 
285
 
259
286
        # Base part of a client. Name!
260
 
        base = '{name}: '.format(name=self.properties["Name"])
 
287
        base = ('%(name)s: '
 
288
                      % {"name": self.properties["Name"]})
261
289
        if not self.properties["Enabled"]:
262
290
            message = "DISABLED"
263
 
            self.using_timer(False)
264
291
        elif self.properties["ApprovalPending"]:
265
292
            timeout = datetime.timedelta(milliseconds
266
293
                                         = self.properties
268
295
            last_approval_request = isoformat_to_datetime(
269
296
                self.properties["LastApprovalRequest"])
270
297
            if last_approval_request is not None:
271
 
                timer = max(timeout - (datetime.datetime.utcnow()
272
 
                                       - last_approval_request),
273
 
                            datetime.timedelta())
 
298
                timer = timeout - (datetime.datetime.utcnow()
 
299
                                   - last_approval_request)
274
300
            else:
275
301
                timer = datetime.timedelta()
276
302
            if self.properties["ApprovedByDefault"]:
277
 
                message = "Approval in {0}. (d)eny?"
278
 
            else:
279
 
                message = "Denial in {0}. (a)pprove?"
280
 
            message = message.format(str(timer).rsplit(".", 1)[0])
281
 
            self.using_timer(True)
282
 
        elif self.properties["LastCheckerStatus"] != 0:
283
 
            # When checker has failed, show timer until client expires
284
 
            expires = self.properties["Expires"]
285
 
            if expires == "":
286
 
                timer = datetime.timedelta(0)
287
 
            else:
288
 
                expires = (datetime.datetime.strptime
289
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
290
 
                timer = max(expires - datetime.datetime.utcnow(),
291
 
                            datetime.timedelta())
 
303
                message = "Approval in %s. (d)eny?"
 
304
            else:
 
305
                message = "Denial in %s. (a)pprove?"
 
306
            message = message % unicode(timer).rsplit(".", 1)[0]
 
307
        elif self.last_checker_failed:
 
308
            timeout = datetime.timedelta(milliseconds
 
309
                                         = self.properties
 
310
                                         ["Timeout"])
 
311
            last_ok = isoformat_to_datetime(
 
312
                max((self.properties["LastCheckedOK"]
 
313
                     or self.properties["Created"]),
 
314
                    self.properties["LastEnabled"]))
 
315
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
292
316
            message = ('A checker has failed! Time until client'
293
 
                       ' gets disabled: {0}'
294
 
                       .format(str(timer).rsplit(".", 1)[0]))
295
 
            self.using_timer(True)
 
317
                       ' gets disabled: %s'
 
318
                           % unicode(timer).rsplit(".", 1)[0])
296
319
        else:
297
320
            message = "enabled"
298
 
            self.using_timer(False)
299
 
        self._text = "{0}{1}".format(base, message)
300
 
        
 
321
        self._text = "%s%s" % (base, message)
 
322
            
301
323
        if not urwid.supports_unicode():
302
324
            self._text = self._text.encode("ascii", "replace")
303
325
        textlist = [("normal", self._text)]
315
337
            self.update_hook()
316
338
    
317
339
    def update_timer(self):
318
 
        """called by gobject. Will indefinitely loop until
319
 
        gobject.source_remove() on tag is called"""
 
340
        "called by gobject"
320
341
        self.update()
321
342
        return True             # Keep calling this
322
343
    
323
 
    def delete(self, **kwargs):
 
344
    def delete(self):
324
345
        if self._update_timer_callback_tag is not None:
325
346
            gobject.source_remove(self._update_timer_callback_tag)
326
347
            self._update_timer_callback_tag = None
327
 
        for match in self.match_objects:
328
 
            match.remove()
329
 
        self.match_objects = ()
330
348
        if self.delete_hook is not None:
331
349
            self.delete_hook(self)
332
 
        return super(MandosClientWidget, self).delete(**kwargs)
333
350
    
334
351
    def render(self, maxcolrow, focus=False):
335
352
        """Render differently if we have focus.
377
394
        else:
378
395
            return key
379
396
    
380
 
    def property_changed(self, property=None, **kwargs):
 
397
    def property_changed(self, property=None, value=None,
 
398
                         *args, **kwargs):
381
399
        """Call self.update() if old value is not new value.
382
400
        This overrides the method from MandosClientPropertyCache"""
383
 
        property_name = str(property)
 
401
        property_name = unicode(property)
384
402
        old_value = self.properties.get(property_name)
385
403
        super(MandosClientWidget, self).property_changed(
386
 
            property=property, **kwargs)
 
404
            property=property, value=value, *args, **kwargs)
387
405
        if self.properties.get(property_name) != old_value:
388
406
            self.update()
389
407
 
393
411
    "down" key presses, thus not allowing any containing widgets to
394
412
    use them as an excuse to shift focus away from this widget.
395
413
    """
396
 
    def keypress(self, *args, **kwargs):
397
 
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
414
    def keypress(self, maxcolrow, key):
 
415
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
398
416
        if ret in ("up", "down"):
399
417
            return
400
418
        return ret
413
431
                ("normal",
414
432
                 "default", "default", None),
415
433
                ("bold",
416
 
                 "bold", "default", "bold"),
 
434
                 "default", "default", "bold"),
417
435
                ("underline-blink",
418
 
                 "underline,blink", "default", "underline,blink"),
 
436
                 "default", "default", "underline"),
419
437
                ("standout",
420
 
                 "standout", "default", "standout"),
 
438
                 "default", "default", "standout"),
421
439
                ("bold-underline-blink",
422
 
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
440
                 "default", "default", ("bold", "underline")),
423
441
                ("bold-standout",
424
 
                 "bold,standout", "default", "bold,standout"),
 
442
                 "default", "default", ("bold", "standout")),
425
443
                ("underline-blink-standout",
426
 
                 "underline,blink,standout", "default",
427
 
                 "underline,blink,standout"),
 
444
                 "default", "default", ("underline", "standout")),
428
445
                ("bold-underline-blink-standout",
429
 
                 "bold,underline,blink,standout", "default",
430
 
                 "bold,underline,blink,standout"),
 
446
                 "default", "default", ("bold", "underline",
 
447
                                          "standout")),
431
448
                ))
432
449
        
433
450
        if urwid.supports_unicode():
465
482
        
466
483
        self.busname = domain + '.Mandos'
467
484
        self.main_loop = gobject.MainLoop()
 
485
        self.bus = dbus.SystemBus()
 
486
        mandos_dbus_objc = self.bus.get_object(
 
487
            self.busname, "/", follow_name_owner_changes=True)
 
488
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
489
                                          dbus_interface
 
490
                                          = server_interface)
 
491
        try:
 
492
            mandos_clients = (self.mandos_serv
 
493
                              .GetAllClientsWithProperties())
 
494
        except dbus.exceptions.DBusException:
 
495
            mandos_clients = dbus.Dictionary()
 
496
        
 
497
        (self.mandos_serv
 
498
         .connect_to_signal("ClientRemoved",
 
499
                            self.find_and_remove_client,
 
500
                            dbus_interface=server_interface,
 
501
                            byte_arrays=True))
 
502
        (self.mandos_serv
 
503
         .connect_to_signal("ClientAdded",
 
504
                            self.add_new_client,
 
505
                            dbus_interface=server_interface,
 
506
                            byte_arrays=True))
 
507
        (self.mandos_serv
 
508
         .connect_to_signal("ClientNotFound",
 
509
                            self.client_not_found,
 
510
                            dbus_interface=server_interface,
 
511
                            byte_arrays=True))
 
512
        for path, client in mandos_clients.iteritems():
 
513
            client_proxy_object = self.bus.get_object(self.busname,
 
514
                                                      path)
 
515
            self.add_client(MandosClientWidget(server_proxy_object
 
516
                                               =self.mandos_serv,
 
517
                                               proxy_object
 
518
                                               =client_proxy_object,
 
519
                                               properties=client,
 
520
                                               update_hook
 
521
                                               =self.refresh,
 
522
                                               delete_hook
 
523
                                               =self.remove_client,
 
524
                                               logger
 
525
                                               =self.log_message),
 
526
                            path=path)
468
527
    
469
528
    def client_not_found(self, fingerprint, address):
470
 
        self.log_message("Client with address {0} and fingerprint"
471
 
                         " {1} could not be found"
472
 
                         .format(address, fingerprint))
 
529
        self.log_message(("Client with address %s and fingerprint %s"
 
530
                          " could not be found" % (address,
 
531
                                                    fingerprint)))
473
532
    
474
533
    def rebuild(self):
475
534
        """This rebuilds the User Interface.
485
544
                                                     self.divider)))
486
545
        if self.log_visible:
487
546
            self.uilist.append(self.logbox)
 
547
            pass
488
548
        self.topwidget = urwid.Pile(self.uilist)
489
549
    
490
550
    def log_message(self, message):
491
 
        """Log message formatted with timestamp"""
492
551
        timestamp = datetime.datetime.now().isoformat()
493
552
        self.log_message_raw(timestamp + ": " + message)
494
553
    
507
566
        self.log_visible = not self.log_visible
508
567
        self.rebuild()
509
568
        #self.log_message("Log visibility changed to: "
510
 
        #                 + str(self.log_visible))
 
569
        #                 + unicode(self.log_visible))
511
570
    
512
571
    def change_log_display(self):
513
572
        """Change type of log display.
521
580
        #self.log_message("Wrap mode: " + self.log_wrap)
522
581
    
523
582
    def find_and_remove_client(self, path, name):
524
 
        """Find a client by its object path and remove it.
 
583
        """Find an client from its object path and remove it.
525
584
        
526
585
        This is connected to the ClientRemoved signal from the
527
586
        Mandos server object."""
529
588
            client = self.clients_dict[path]
530
589
        except KeyError:
531
590
            # not found?
532
 
            self.log_message("Unknown client {0!r} ({1!r}) removed"
533
 
                             .format(name, path))
534
591
            return
535
 
        client.delete()
 
592
        self.remove_client(client, path)
536
593
    
537
594
    def add_new_client(self, path):
538
595
        client_proxy_object = self.bus.get_object(self.busname, path)
553
610
        if path is None:
554
611
            path = client.proxy.object_path
555
612
        self.clients_dict[path] = client
556
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
613
        self.clients.sort(None, lambda c: c.properties["Name"])
557
614
        self.refresh()
558
615
    
559
616
    def remove_client(self, client, path=None):
561
618
        if path is None:
562
619
            path = client.proxy.object_path
563
620
        del self.clients_dict[path]
 
621
        if not self.clients_dict:
 
622
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
623
            # is completely emptied, we need to recreate it.
 
624
            self.clients = urwid.SimpleListWalker([])
 
625
            self.rebuild()
564
626
        self.refresh()
565
627
    
566
628
    def refresh(self):
570
632
    
571
633
    def run(self):
572
634
        """Start the main loop and exit when it's done."""
573
 
        self.bus = dbus.SystemBus()
574
 
        mandos_dbus_objc = self.bus.get_object(
575
 
            self.busname, "/", follow_name_owner_changes=True)
576
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
577
 
                                          dbus_interface
578
 
                                          = server_interface)
579
 
        try:
580
 
            mandos_clients = (self.mandos_serv
581
 
                              .GetAllClientsWithProperties())
582
 
            if not mandos_clients:
583
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
584
 
        except dbus.exceptions.DBusException:
585
 
            self.log_message_raw(("bold", "Note: No Mandos server running."))
586
 
            mandos_clients = dbus.Dictionary()
587
 
        
588
 
        (self.mandos_serv
589
 
         .connect_to_signal("ClientRemoved",
590
 
                            self.find_and_remove_client,
591
 
                            dbus_interface=server_interface,
592
 
                            byte_arrays=True))
593
 
        (self.mandos_serv
594
 
         .connect_to_signal("ClientAdded",
595
 
                            self.add_new_client,
596
 
                            dbus_interface=server_interface,
597
 
                            byte_arrays=True))
598
 
        (self.mandos_serv
599
 
         .connect_to_signal("ClientNotFound",
600
 
                            self.client_not_found,
601
 
                            dbus_interface=server_interface,
602
 
                            byte_arrays=True))
603
 
        for path, client in mandos_clients.items():
604
 
            client_proxy_object = self.bus.get_object(self.busname,
605
 
                                                      path)
606
 
            self.add_client(MandosClientWidget(server_proxy_object
607
 
                                               =self.mandos_serv,
608
 
                                               proxy_object
609
 
                                               =client_proxy_object,
610
 
                                               properties=client,
611
 
                                               update_hook
612
 
                                               =self.refresh,
613
 
                                               delete_hook
614
 
                                               =self.remove_client,
615
 
                                               logger
616
 
                                               =self.log_message),
617
 
                            path=path)
618
 
        
619
635
        self.refresh()
620
636
        self._input_callback_tag = (gobject.io_add_watch
621
637
                                    (sys.stdin.fileno(),
718
734
    ui.run()
719
735
except KeyboardInterrupt:
720
736
    ui.screen.stop()
721
 
except Exception as e:
722
 
    ui.log_message(str(e))
 
737
except Exception, e:
 
738
    ui.log_message(unicode(e))
723
739
    ui.screen.stop()
724
740
    raise