82
 
                             int(second),            # Whole seconds
 
83
 
                             int(fraction*1000000))  # Microseconds
 
 
77
                             int(second),           # Whole seconds
 
 
78
                             int(fraction*1000000)) # Microseconds
 
86
80
class MandosClientPropertyCache(object):
 
87
81
    """This wraps a Mandos Client D-Bus proxy object, caches the
 
88
82
    properties and calls a hook function when any of them are
 
91
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
92
 
        self.proxy = proxy_object  # Mandos Client proxy object
 
93
 
        self.properties = dict() if properties is None else properties
 
94
 
        self.property_changed_match = (
 
95
 
            self.proxy.connect_to_signal("PropertiesChanged",
 
96
 
                                         self.properties_changed,
 
97
 
                                         dbus.PROPERTIES_IFACE,
 
100
 
        if properties is None:
 
101
 
            self.properties.update(self.proxy.GetAll(
 
103
 
                dbus_interface=dbus.PROPERTIES_IFACE))
 
105
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
107
 
    def properties_changed(self, interface, properties, invalidated):
 
108
 
        """This is called whenever we get a PropertiesChanged signal
 
109
 
        It updates the changed properties in the "properties" dict.
 
 
85
    def __init__(self, proxy_object=None, *args, **kwargs):
 
 
86
        self.proxy = proxy_object # Mandos Client proxy object
 
 
88
        self.properties = dict()
 
 
89
        self.proxy.connect_to_signal("PropertyChanged",
 
 
90
                                     self.property_changed,
 
 
94
        self.properties.update(
 
 
95
            self.proxy.GetAll(client_interface,
 
 
96
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
 
98
        #XXX This break good super behaviour!
 
 
99
#        super(MandosClientPropertyCache, self).__init__(
 
 
102
    def property_changed(self, property=None, value=None):
 
 
103
        """This is called whenever we get a PropertyChanged signal
 
 
104
        It updates the changed property in the "properties" dict.
 
111
106
        # Update properties dict with new value
 
112
 
        if interface == client_interface:
 
113
 
            self.properties.update(properties)
 
116
 
        self.property_changed_match.remove()
 
 
107
        self.properties[property] = value
 
119
110
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
120
111
    """A Mandos Client which is visible on the screen.
 
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
 
 
130
121
        self.server_proxy_object = server_proxy_object
 
132
123
        self.logger = logger
 
134
125
        self._update_timer_callback_tag = None
 
 
126
        self._update_timer_callback_lock = 0
 
 
127
        self.last_checker_failed = False
 
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,
 
142
137
        self.opened = False
 
144
 
        self.match_objects = (
 
145
 
            self.proxy.connect_to_signal("CheckerCompleted",
 
146
 
                                         self.checker_completed,
 
149
 
            self.proxy.connect_to_signal("CheckerStarted",
 
150
 
                                         self.checker_started,
 
153
 
            self.proxy.connect_to_signal("GotSecret",
 
157
 
            self.proxy.connect_to_signal("NeedApproval",
 
161
 
            self.proxy.connect_to_signal("Rejected",
 
165
 
        self.logger('Created client {}'
 
166
 
                    .format(self.properties["Name"]), level=0)
 
 
139
        last_checked_ok = isoformat_to_datetime(self.properties
 
 
141
        if last_checked_ok is None:
 
 
142
            self.last_checker_failed = True
 
 
144
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
 
151
        if self.last_checker_failed:
 
 
152
            self.using_timer(True)
 
 
154
        if self.need_approval:
 
 
155
            self.using_timer(True)
 
 
157
        self.proxy.connect_to_signal("CheckerCompleted",
 
 
158
                                     self.checker_completed,
 
 
161
        self.proxy.connect_to_signal("CheckerStarted",
 
 
162
                                     self.checker_started,
 
 
165
        self.proxy.connect_to_signal("GotSecret",
 
 
169
        self.proxy.connect_to_signal("NeedApproval",
 
 
173
        self.proxy.connect_to_signal("Rejected",
 
 
178
    def property_changed(self, property=None, value=None):
 
 
179
        super(self, MandosClientWidget).property_changed(property,
 
 
181
        if property == "ApprovalPending":
 
 
182
            using_timer(bool(value))
 
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.
 
172
 
        if flag and self._update_timer_callback_tag is None:
 
173
 
            # Will update the shown timer value every second
 
174
 
            self._update_timer_callback_tag = (GLib.timeout_add
 
 
188
        old = self._update_timer_callback_lock
 
 
190
            self._update_timer_callback_lock += 1
 
 
192
            self._update_timer_callback_lock -= 1
 
 
193
        if old == 0 and self._update_timer_callback_lock:
 
 
194
            self._update_timer_callback_tag = (gobject.timeout_add
 
176
196
                                                self.update_timer))
 
177
 
        elif not (flag or self._update_timer_callback_tag is None):
 
178
 
            GLib.source_remove(self._update_timer_callback_tag)
 
 
197
        elif old and self._update_timer_callback_lock == 0:
 
 
198
            gobject.source_remove(self._update_timer_callback_tag)
 
179
199
            self._update_timer_callback_tag = None
 
181
201
    def checker_completed(self, exitstatus, condition, command):
 
182
202
        if exitstatus == 0:
 
183
 
            self.logger('Checker for client {} (command "{}")'
 
184
 
                        ' succeeded'.format(self.properties["Name"],
 
 
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")'
 
 
208
            #            % (self.properties["Name"], command))
 
 
212
        if not self.last_checker_failed:
 
 
213
            self.last_checker_failed = True
 
 
214
            self.using_timer(True)
 
189
215
        if os.WIFEXITED(condition):
 
190
 
            self.logger('Checker for client {} (command "{}") failed'
 
192
 
                        .format(self.properties["Name"], command,
 
193
 
                                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)))
 
194
220
        elif os.WIFSIGNALED(condition):
 
195
 
            self.logger('Checker for client {} (command "{}") was'
 
196
 
                        ' killed by signal {}'
 
197
 
                        .format(self.properties["Name"], command,
 
198
 
                                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)))
 
 
225
        elif os.WCOREDUMP(condition):
 
 
226
            self.logger('Checker for client %s (command "%s")'
 
 
228
                        % (self.properties["Name"], command))
 
 
230
            self.logger('Checker for client %s completed'
 
201
234
    def checker_started(self, command):
 
202
 
        """Server signals that a checker started."""
 
203
 
        self.logger('Client {} started checker "{}"'
 
204
 
                    .format(self.properties["Name"],
 
 
235
        #self.logger('Client %s started checker "%s"'
 
 
236
        #            % (self.properties["Name"], unicode(command)))
 
207
239
    def got_secret(self):
 
208
 
        self.logger('Client {} received its secret'
 
209
 
                    .format(self.properties["Name"]))
 
 
240
        self.last_checker_failed = False
 
 
241
        self.logger('Client %s received its secret'
 
 
242
                    % self.properties["Name"])
 
211
244
    def need_approval(self, timeout, default):
 
213
 
            message = 'Client {} needs approval within {} seconds'
 
 
246
            message = 'Client %s needs approval within %s seconds'
 
215
 
            message = 'Client {} will get its secret in {} seconds'
 
216
 
        self.logger(message.format(self.properties["Name"],
 
 
248
            message = 'Client %s will get its secret in %s seconds'
 
 
250
                    % (self.properties["Name"], timeout/1000))
 
 
251
        self.using_timer(True)
 
219
253
    def rejected(self, reason):
 
220
 
        self.logger('Client {} was rejected; reason: {}'
 
221
 
                    .format(self.properties["Name"], reason))
 
 
254
        self.logger('Client %s was rejected; reason: %s'
 
 
255
                    % (self.properties["Name"], reason))
 
223
257
    def selectable(self):
 
224
258
        """Make this a "selectable" widget.
 
225
259
        This overrides the method from urwid.FlowWidget."""
 
228
262
    def rows(self, maxcolrow, focus=False):
 
229
263
        """How many rows this widget will occupy might depend on
 
230
264
        whether we have focus or not.
 
231
265
        This overrides the method from urwid.FlowWidget"""
 
232
266
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
234
268
    def current_widget(self, focus=False):
 
235
269
        if focus or self.opened:
 
236
270
            return self._focus_widget
 
237
271
        return self._widget
 
239
273
    def update(self):
 
240
274
        "Called when what is visible on the screen should be updated."
 
241
275
        # How to add standout mode to a style
 
242
 
        with_standout = {"normal": "standout",
 
243
 
                         "bold": "bold-standout",
 
245
 
                         "underline-blink-standout",
 
246
 
                         "bold-underline-blink":
 
247
 
                         "bold-underline-blink-standout",
 
 
276
        with_standout = { "normal": "standout",
 
 
277
                          "bold": "bold-standout",
 
 
279
                              "underline-blink-standout",
 
 
280
                          "bold-underline-blink":
 
 
281
                              "bold-underline-blink-standout",
 
250
284
        # Rebuild focus and non-focus widgets using current properties
 
252
286
        # Base part of a client. Name!
 
253
 
        base = '{name}: '.format(name=self.properties["Name"])
 
 
288
                      % {"name": self.properties["Name"]})
 
254
289
        if not self.properties["Enabled"]:
 
255
290
            message = "DISABLED"
 
256
 
            self.using_timer(False)
 
257
291
        elif self.properties["ApprovalPending"]:
 
258
 
            timeout = datetime.timedelta(
 
259
 
                milliseconds=self.properties["ApprovalDelay"])
 
 
292
            timeout = datetime.timedelta(milliseconds
 
260
295
            last_approval_request = isoformat_to_datetime(
 
261
296
                self.properties["LastApprovalRequest"])
 
262
297
            if last_approval_request is not None:
 
263
 
                timer = max(timeout - (datetime.datetime.utcnow()
 
264
 
                                       - last_approval_request),
 
265
 
                            datetime.timedelta())
 
 
298
                timer = timeout - (datetime.datetime.utcnow()
 
 
299
                                   - last_approval_request)
 
267
301
                timer = datetime.timedelta()
 
268
302
            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())
 
 
303
                message = "Approval in %s. (d)eny?"
 
 
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
 
 
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)
 
284
316
            message = ('A checker has failed! Time until client'
 
286
 
                       .format(str(timer).rsplit(".", 1)[0]))
 
287
 
            self.using_timer(True)
 
 
318
                           % unicode(timer).rsplit(".", 1)[0])
 
289
320
            message = "enabled"
 
290
 
            self.using_timer(False)
 
291
 
        self._text = "{}{}".format(base, message)
 
 
321
        self._text = "%s%s" % (base, message)
 
293
323
        if not urwid.supports_unicode():
 
294
324
            self._text = self._text.encode("ascii", "replace")
 
295
325
        textlist = [("normal", self._text)]
 
 
305
335
        # Run update hook, if any
 
306
336
        if self.update_hook is not None:
 
307
337
            self.update_hook()
 
309
339
    def update_timer(self):
 
310
 
        """called by GLib. Will indefinitely loop until
 
311
 
        GLib.source_remove() on tag is called
 
314
342
        return True             # Keep calling this
 
316
 
    def delete(self, **kwargs):
 
317
345
        if self._update_timer_callback_tag is not None:
 
318
 
            GLib.source_remove(self._update_timer_callback_tag)
 
 
346
            gobject.source_remove(self._update_timer_callback_tag)
 
319
347
            self._update_timer_callback_tag = None
 
320
 
        for match in self.match_objects:
 
322
 
        self.match_objects = ()
 
323
348
        if self.delete_hook is not None:
 
324
349
            self.delete_hook(self)
 
325
 
        return super(MandosClientWidget, self).delete(**kwargs)
 
327
351
    def render(self, maxcolrow, focus=False):
 
328
352
        """Render differently if we have focus.
 
329
353
        This overrides the method from urwid.FlowWidget"""
 
330
354
        return self.current_widget(focus).render(maxcolrow,
 
333
357
    def keypress(self, maxcolrow, key):
 
335
359
        This overrides the method from urwid.FlowWidget"""
 
337
 
            self.proxy.Set(client_interface, "Enabled",
 
338
 
                           dbus.Boolean(True), ignore_reply=True,
 
339
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
361
            self.proxy.Enable(dbus_interface = client_interface)
 
341
 
            self.proxy.Set(client_interface, "Enabled", False,
 
343
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
363
            self.proxy.Disable(dbus_interface = client_interface)
 
345
365
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
346
 
                               dbus_interface=client_interface,
 
 
366
                               dbus_interface = client_interface)
 
349
368
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
350
 
                               dbus_interface=client_interface,
 
 
369
                                  dbus_interface = client_interface)
 
352
370
        elif key == "R" or key == "_" or key == "ctrl k":
 
353
371
            self.server_proxy_object.RemoveClient(self.proxy
 
357
 
            self.proxy.Set(client_interface, "CheckerRunning",
 
358
 
                           dbus.Boolean(True), ignore_reply=True,
 
359
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
374
            self.proxy.StartChecker(dbus_interface = client_interface)
 
361
 
            self.proxy.Set(client_interface, "CheckerRunning",
 
362
 
                           dbus.Boolean(False), ignore_reply=True,
 
363
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
376
            self.proxy.StopChecker(dbus_interface = client_interface)
 
365
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
 
378
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
368
380
#         elif key == "p" or key == "=":
 
369
381
#             self.proxy.pause()
 
 
403
414
    """This is the entire user interface - the whole screen
 
404
415
    with boxes, lists of client widgets, etc.
 
406
 
    def __init__(self, max_log_length=1000, log_level=1):
 
 
417
    def __init__(self, max_log_length=1000):
 
407
418
        DBusGMainLoop(set_as_default=True)
 
409
420
        self.screen = urwid.curses_display.Screen()
 
411
422
        self.screen.register_palette((
 
413
424
                 "default", "default", None),
 
415
 
                 "bold", "default", "bold"),
 
 
426
                 "default", "default", "bold"),
 
416
427
                ("underline-blink",
 
417
 
                 "underline,blink", "default", "underline,blink"),
 
 
428
                 "default", "default", "underline"),
 
419
 
                 "standout", "default", "standout"),
 
 
430
                 "default", "default", "standout"),
 
420
431
                ("bold-underline-blink",
 
421
 
                 "bold,underline,blink", "default",
 
422
 
                 "bold,underline,blink"),
 
 
432
                 "default", "default", ("bold", "underline")),
 
423
433
                ("bold-standout",
 
424
 
                 "bold,standout", "default", "bold,standout"),
 
 
434
                 "default", "default", ("bold", "standout")),
 
425
435
                ("underline-blink-standout",
 
426
 
                 "underline,blink,standout", "default",
 
427
 
                 "underline,blink,standout"),
 
 
436
                 "default", "default", ("underline", "standout")),
 
428
437
                ("bold-underline-blink-standout",
 
429
 
                 "bold,underline,blink,standout", "default",
 
430
 
                 "bold,underline,blink,standout"),
 
 
438
                 "default", "default", ("bold", "underline",
 
433
442
        if urwid.supports_unicode():
 
434
 
            self.divider = "─"  # \u2500
 
 
443
            self.divider = "─" # \u2500
 
 
444
            #self.divider = "━" # \u2501
 
436
 
            self.divider = "_"  # \u005f
 
 
446
            #self.divider = "-" # \u002d
 
 
447
            self.divider = "_" # \u005f
 
438
449
        self.screen.start()
 
440
451
        self.size = self.screen.get_cols_rows()
 
442
453
        self.clients = urwid.SimpleListWalker([])
 
443
454
        self.clients_dict = {}
 
445
456
        # We will add Text widgets to this list
 
447
458
        self.max_log_length = max_log_length
 
449
 
        self.log_level = log_level
 
451
460
        # We keep a reference to the log widget so we can remove it
 
452
461
        # from the ListWalker without it getting destroyed
 
453
462
        self.logbox = ConstrainedListBox(self.log)
 
455
464
        # This keeps track of whether self.uilist currently has
 
456
465
        # self.logbox in it or not
 
457
466
        self.log_visible = True
 
458
467
        self.log_wrap = "any"
 
461
470
        self.log_message_raw(("bold",
 
462
471
                              "Mandos Monitor version " + version))
 
463
472
        self.log_message_raw(("bold",
 
464
473
                              "q: Quit  ?: Help"))
 
466
475
        self.busname = domain + '.Mandos'
 
467
 
        self.main_loop = GLib.MainLoop()
 
 
476
        self.main_loop = gobject.MainLoop()
 
 
477
        self.bus = dbus.SystemBus()
 
 
478
        mandos_dbus_objc = self.bus.get_object(
 
 
479
            self.busname, "/", follow_name_owner_changes=True)
 
 
480
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
 
484
            mandos_clients = (self.mandos_serv
 
 
485
                              .GetAllClientsWithProperties())
 
 
486
        except dbus.exceptions.DBusException:
 
 
487
            mandos_clients = dbus.Dictionary()
 
 
490
         .connect_to_signal("ClientRemoved",
 
 
491
                            self.find_and_remove_client,
 
 
492
                            dbus_interface=server_interface,
 
 
495
         .connect_to_signal("ClientAdded",
 
 
497
                            dbus_interface=server_interface,
 
 
500
         .connect_to_signal("ClientNotFound",
 
 
501
                            self.client_not_found,
 
 
502
                            dbus_interface=server_interface,
 
 
504
        for path, client in mandos_clients.iteritems():
 
 
505
            client_proxy_object = self.bus.get_object(self.busname,
 
 
507
            self.add_client(MandosClientWidget(server_proxy_object
 
 
510
                                               =client_proxy_object,
 
469
520
    def client_not_found(self, fingerprint, address):
 
470
 
        self.log_message("Client with address {} and fingerprint {}"
 
471
 
                         " could not be found"
 
472
 
                         .format(address, fingerprint))
 
 
521
        self.log_message(("Client with address %s and fingerprint %s"
 
 
522
                          " could not be found" % (address,
 
474
525
    def rebuild(self):
 
475
526
        """This rebuilds the User Interface.
 
476
527
        Call this when the widget layout needs to change"""
 
478
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
 
529
        #self.uilist.append(urwid.ListBox(self.clients))
 
479
530
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
481
 
                                       # header=urwid.Divider(),
 
 
532
                                       #header=urwid.Divider(),
 
483
 
                                       footer=urwid.Divider(
 
484
 
                                           div_char=self.divider)))
 
 
535
                                       urwid.Divider(div_char=
 
485
537
        if self.log_visible:
 
486
538
            self.uilist.append(self.logbox)
 
487
540
        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:
 
 
542
    def log_message(self, message):
 
493
543
        timestamp = datetime.datetime.now().isoformat()
 
494
 
        self.log_message_raw("{}: {}".format(timestamp, message),
 
497
 
    def log_message_raw(self, markup, level=1):
 
 
544
        self.log_message_raw(timestamp + ": " + message)
 
 
546
    def log_message_raw(self, markup):
 
498
547
        """Add a log message to the log buffer."""
 
499
 
        if level < self.log_level:
 
501
548
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
502
 
        if self.max_log_length:
 
503
 
            if len(self.log) > self.max_log_length:
 
504
 
                del self.log[0:len(self.log)-self.max_log_length-1]
 
 
549
        if (self.max_log_length
 
 
550
            and len(self.log) > self.max_log_length):
 
 
551
            del self.log[0:len(self.log)-self.max_log_length-1]
 
505
552
        self.logbox.set_focus(len(self.logbox.body.contents),
 
506
553
                              coming_from="above")
 
509
556
    def toggle_log_display(self):
 
510
557
        """Toggle visibility of the log buffer."""
 
511
558
        self.log_visible = not self.log_visible
 
513
 
        self.log_message("Log visibility changed to: {}"
 
514
 
                         .format(self.log_visible), level=0)
 
 
560
        #self.log_message("Log visibility changed to: "
 
 
561
        #                 + unicode(self.log_visible))
 
516
563
    def change_log_display(self):
 
517
564
        """Change type of log display.
 
518
565
        Currently, this toggles wrapping of text lines."""
 
 
522
569
            self.log_wrap = "clip"
 
523
570
        for textwidget in self.log:
 
524
571
            textwidget.set_wrap_mode(self.log_wrap)
 
525
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
528
 
    def find_and_remove_client(self, path, interfaces):
 
529
 
        """Find a client by its object path and remove it.
 
531
 
        This is connected to the InterfacesRemoved signal from the
 
 
572
        #self.log_message("Wrap mode: " + self.log_wrap)
 
 
574
    def find_and_remove_client(self, path, name):
 
 
575
        """Find an client from its object path and remove it.
 
 
577
        This is connected to the ClientRemoved signal from the
 
532
578
        Mandos server object."""
 
533
 
        if client_interface not in interfaces:
 
534
 
            # Not a Mandos client object; ignore
 
537
580
            client = self.clients_dict[path]
 
540
 
            self.log_message("Unknown client {!r} removed"
 
545
 
    def add_new_client(self, path, ifs_and_props):
 
546
 
        """Find a client by its object path and remove it.
 
548
 
        This is connected to the InterfacesAdded signal from the
 
549
 
        Mandos server object.
 
551
 
        if client_interface not in ifs_and_props:
 
552
 
            # Not a Mandos client object; ignore
 
 
584
        self.remove_client(client, path)
 
 
586
    def add_new_client(self, path):
 
554
587
        client_proxy_object = self.bus.get_object(self.busname, path)
 
555
 
        self.add_client(MandosClientWidget(
 
556
 
            server_proxy_object=self.mandos_serv,
 
557
 
            proxy_object=client_proxy_object,
 
558
 
            update_hook=self.refresh,
 
559
 
            delete_hook=self.remove_client,
 
560
 
            logger=self.log_message,
 
561
 
            properties=dict(ifs_and_props[client_interface])),
 
 
588
        self.add_client(MandosClientWidget(server_proxy_object
 
 
591
                                           =client_proxy_object,
 
564
600
    def add_client(self, client, path=None):
 
565
601
        self.clients.append(client)
 
567
603
            path = client.proxy.object_path
 
568
604
        self.clients_dict[path] = client
 
569
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
 
605
        self.clients.sort(None, lambda c: c.properties["Name"])
 
572
608
    def remove_client(self, client, path=None):
 
573
609
        self.clients.remove(client)
 
575
611
            path = client.proxy.object_path
 
576
612
        del self.clients_dict[path]
 
 
613
        if not self.clients_dict:
 
 
614
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
 
615
            # is completely emptied, we need to recreate it.
 
 
616
            self.clients = urwid.SimpleListWalker([])
 
579
620
    def refresh(self):
 
580
621
        """Redraw the screen"""
 
581
622
        canvas = self.topwidget.render(self.size, focus=True)
 
582
623
        self.screen.draw_screen(self.size, canvas)
 
585
626
        """Start the main loop and exit when it's done."""
 
586
 
        self.bus = dbus.SystemBus()
 
587
 
        mandos_dbus_objc = self.bus.get_object(
 
588
 
            self.busname, "/", follow_name_owner_changes=True)
 
589
 
        self.mandos_serv = dbus.Interface(
 
590
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
592
 
            mandos_clients = (self.mandos_serv
 
593
 
                              .GetAllClientsWithProperties())
 
594
 
            if not mandos_clients:
 
595
 
                self.log_message_raw(("bold",
 
596
 
                                      "Note: Server has no clients."))
 
597
 
        except dbus.exceptions.DBusException:
 
598
 
            self.log_message_raw(("bold",
 
599
 
                                  "Note: No Mandos server running."))
 
600
 
            mandos_clients = dbus.Dictionary()
 
603
 
         .connect_to_signal("InterfacesRemoved",
 
604
 
                            self.find_and_remove_client,
 
605
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
608
 
         .connect_to_signal("InterfacesAdded",
 
610
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
613
 
         .connect_to_signal("ClientNotFound",
 
614
 
                            self.client_not_found,
 
615
 
                            dbus_interface=server_interface,
 
617
 
        for path, client in mandos_clients.items():
 
618
 
            client_proxy_object = self.bus.get_object(self.busname,
 
620
 
            self.add_client(MandosClientWidget(
 
621
 
                server_proxy_object=self.mandos_serv,
 
622
 
                proxy_object=client_proxy_object,
 
624
 
                update_hook=self.refresh,
 
625
 
                delete_hook=self.remove_client,
 
626
 
                logger=self.log_message),
 
630
 
        self._input_callback_tag = (GLib.io_add_watch
 
 
628
        self._input_callback_tag = (gobject.io_add_watch
 
631
629
                                    (sys.stdin.fileno(),
 
633
631
                                     self.process_input))
 
634
632
        self.main_loop.run()
 
635
633
        # Main loop has finished, we should close everything now
 
636
 
        GLib.source_remove(self._input_callback_tag)
 
 
634
        gobject.source_remove(self._input_callback_tag)
 
637
635
        self.screen.stop()
 
640
638
        self.main_loop.quit()
 
642
640
    def process_input(self, source, condition):
 
643
641
        keys = self.screen.get_input()
 
644
 
        translations = {"ctrl n": "down",       # Emacs
 
645
 
                        "ctrl p": "up",         # Emacs
 
646
 
                        "ctrl v": "page down",  # Emacs
 
647
 
                        "meta v": "page up",    # Emacs
 
648
 
                        " ": "page down",       # less
 
649
 
                        "f": "page down",       # less
 
650
 
                        "b": "page up",         # less
 
 
642
        translations = { "ctrl n": "down",      # Emacs
 
 
643
                         "ctrl p": "up",        # Emacs
 
 
644
                         "ctrl v": "page down", # Emacs
 
 
645
                         "meta v": "page up",   # Emacs
 
 
646
                         " ": "page down",      # less
 
 
647
                         "f": "page down",      # less
 
 
648
                         "b": "page up",        # less
 
656
654
                key = translations[key]
 
657
655
            except KeyError:    # :-)
 
660
658
            if key == "q" or key == "Q":
 
663
661
            elif key == "window resize":
 
664
662
                self.size = self.screen.get_cols_rows()
 
666
 
            elif key == "ctrl l":
 
 
664
            elif key == "\f":  # Ctrl-L
 
669
666
            elif key == "l" or key == "D":
 
670
667
                self.toggle_log_display()