77
 
                             int(second),           # Whole seconds
 
78
 
                             int(fraction*1000000)) # Microseconds
 
 
82
                             int(second),            # Whole seconds
 
 
83
                             int(fraction*1000000))  # Microseconds
 
80
86
class MandosClientPropertyCache(object):
 
81
87
    """This wraps a Mandos Client D-Bus proxy object, caches the
 
82
88
    properties and calls a hook function when any of them are
 
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.
 
 
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.
 
106
111
        # Update properties dict with new value
 
107
 
        self.properties[property] = value
 
 
112
        if interface == client_interface:
 
 
113
            self.properties.update(properties)
 
 
116
        self.property_changed_match.remove()
 
110
119
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
111
120
    """A Mandos Client which is visible on the screen.
 
114
123
    def __init__(self, server_proxy_object=None, update_hook=None,
 
115
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
 
124
                 delete_hook=None, logger=None, **kwargs):
 
116
125
        # Called on update
 
117
126
        self.update_hook = update_hook
 
118
127
        # Called on delete
 
 
121
130
        self.server_proxy_object = server_proxy_object
 
123
132
        self.logger = logger
 
125
134
        self._update_timer_callback_tag = None
 
126
 
        self._update_timer_callback_lock = 0
 
127
 
        self.last_checker_failed = False
 
129
136
        # The widget shown normally
 
130
137
        self._text_widget = urwid.Text("")
 
131
138
        # The widget shown when we have focus
 
132
139
        self._focus_text_widget = urwid.Text("")
 
133
 
        super(MandosClientWidget, self).__init__(
 
134
 
            update_hook=update_hook, delete_hook=delete_hook,
 
 
140
        super(MandosClientWidget, self).__init__(**kwargs)
 
137
142
        self.opened = False
 
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))
 
 
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)
 
184
168
    def using_timer(self, flag):
 
185
169
        """Call this method with True or False when timer should be
 
186
170
        activated or deactivated.
 
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
 
 
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
 
196
176
                                                self.update_timer))
 
197
 
        elif old and self._update_timer_callback_lock == 0:
 
198
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
177
        elif not (flag or self._update_timer_callback_tag is None):
 
 
178
            GLib.source_remove(self._update_timer_callback_tag)
 
199
179
            self._update_timer_callback_tag = None
 
201
181
    def checker_completed(self, exitstatus, condition, command):
 
202
182
        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")'
 
208
 
            #            % (self.properties["Name"], command))
 
 
183
            self.logger('Checker for client {} (command "{}")'
 
 
184
                        ' succeeded'.format(self.properties["Name"],
 
212
 
        if not self.last_checker_failed:
 
213
 
            self.last_checker_failed = True
 
214
 
            self.using_timer(True)
 
215
189
        if os.WIFEXITED(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)))
 
 
190
            self.logger('Checker for client {} (command "{}") failed'
 
 
192
                        .format(self.properties["Name"], command,
 
 
193
                                os.WEXITSTATUS(condition)))
 
220
194
        elif os.WIFSIGNALED(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'
 
 
195
            self.logger('Checker for client {} (command "{}") was'
 
 
196
                        ' killed by signal {}'
 
 
197
                        .format(self.properties["Name"], command,
 
 
198
                                os.WTERMSIG(condition)))
 
234
201
    def checker_started(self, command):
 
235
 
        #self.logger('Client %s started checker "%s"'
 
236
 
        #            % (self.properties["Name"], unicode(command)))
 
 
202
        """Server signals that a checker started."""
 
 
203
        self.logger('Client {} started checker "{}"'
 
 
204
                    .format(self.properties["Name"],
 
239
207
    def got_secret(self):
 
240
 
        self.last_checker_failed = False
 
241
 
        self.logger('Client %s received its secret'
 
242
 
                    % self.properties["Name"])
 
 
208
        self.logger('Client {} received its secret'
 
 
209
                    .format(self.properties["Name"]))
 
244
211
    def need_approval(self, timeout, default):
 
246
 
            message = 'Client %s needs approval within %s seconds'
 
 
213
            message = 'Client {} needs approval within {} seconds'
 
248
 
            message = 'Client %s will get its secret in %s seconds'
 
250
 
                    % (self.properties["Name"], timeout/1000))
 
251
 
        self.using_timer(True)
 
 
215
            message = 'Client {} will get its secret in {} seconds'
 
 
216
        self.logger(message.format(self.properties["Name"],
 
253
219
    def rejected(self, reason):
 
254
 
        self.logger('Client %s was rejected; reason: %s'
 
255
 
                    % (self.properties["Name"], reason))
 
 
220
        self.logger('Client {} was rejected; reason: {}'
 
 
221
                    .format(self.properties["Name"], reason))
 
257
223
    def selectable(self):
 
258
224
        """Make this a "selectable" widget.
 
259
225
        This overrides the method from urwid.FlowWidget."""
 
262
228
    def rows(self, maxcolrow, focus=False):
 
263
229
        """How many rows this widget will occupy might depend on
 
264
230
        whether we have focus or not.
 
265
231
        This overrides the method from urwid.FlowWidget"""
 
266
232
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
268
234
    def current_widget(self, focus=False):
 
269
235
        if focus or self.opened:
 
270
236
            return self._focus_widget
 
271
237
        return self._widget
 
273
239
    def update(self):
 
274
240
        "Called when what is visible on the screen should be updated."
 
275
241
        # How to add standout mode to a style
 
276
 
        with_standout = { "normal": "standout",
 
277
 
                          "bold": "bold-standout",
 
279
 
                              "underline-blink-standout",
 
280
 
                          "bold-underline-blink":
 
281
 
                              "bold-underline-blink-standout",
 
 
242
        with_standout = {"normal": "standout",
 
 
243
                         "bold": "bold-standout",
 
 
245
                         "underline-blink-standout",
 
 
246
                         "bold-underline-blink":
 
 
247
                         "bold-underline-blink-standout",
 
284
250
        # Rebuild focus and non-focus widgets using current properties
 
286
252
        # Base part of a client. Name!
 
288
 
                      % {"name": self.properties["Name"]})
 
 
253
        base = '{name}: '.format(name=self.properties["Name"])
 
289
254
        if not self.properties["Enabled"]:
 
290
255
            message = "DISABLED"
 
 
256
            self.using_timer(False)
 
291
257
        elif self.properties["ApprovalPending"]:
 
292
 
            timeout = datetime.timedelta(milliseconds
 
 
258
            timeout = datetime.timedelta(
 
 
259
                milliseconds=self.properties["ApprovalDelay"])
 
295
260
            last_approval_request = isoformat_to_datetime(
 
296
261
                self.properties["LastApprovalRequest"])
 
297
262
            if last_approval_request is not None:
 
298
 
                timer = timeout - (datetime.datetime.utcnow()
 
299
 
                                   - last_approval_request)
 
 
263
                timer = max(timeout - (datetime.datetime.utcnow()
 
 
264
                                       - last_approval_request),
 
 
265
                            datetime.timedelta())
 
301
267
                timer = datetime.timedelta()
 
302
268
            if self.properties["ApprovedByDefault"]:
 
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)
 
 
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())
 
316
284
            message = ('A checker has failed! Time until client'
 
318
 
                           % unicode(timer).rsplit(".", 1)[0])
 
 
286
                       .format(str(timer).rsplit(".", 1)[0]))
 
 
287
            self.using_timer(True)
 
320
289
            message = "enabled"
 
321
 
        self._text = "%s%s" % (base, message)
 
 
290
            self.using_timer(False)
 
 
291
        self._text = "{}{}".format(base, message)
 
323
293
        if not urwid.supports_unicode():
 
324
294
            self._text = self._text.encode("ascii", "replace")
 
325
295
        textlist = [("normal", self._text)]
 
 
335
305
        # Run update hook, if any
 
336
306
        if self.update_hook is not None:
 
337
307
            self.update_hook()
 
339
309
    def update_timer(self):
 
 
310
        """called by GLib. Will indefinitely loop until
 
 
311
        GLib.source_remove() on tag is called
 
342
314
        return True             # Keep calling this
 
 
316
    def delete(self, **kwargs):
 
345
317
        if self._update_timer_callback_tag is not None:
 
346
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
318
            GLib.source_remove(self._update_timer_callback_tag)
 
347
319
            self._update_timer_callback_tag = None
 
 
320
        for match in self.match_objects:
 
 
322
        self.match_objects = ()
 
348
323
        if self.delete_hook is not None:
 
349
324
            self.delete_hook(self)
 
 
325
        return super(MandosClientWidget, self).delete(**kwargs)
 
351
327
    def render(self, maxcolrow, focus=False):
 
352
328
        """Render differently if we have focus.
 
353
329
        This overrides the method from urwid.FlowWidget"""
 
354
330
        return self.current_widget(focus).render(maxcolrow,
 
357
333
    def keypress(self, maxcolrow, key):
 
359
335
        This overrides the method from urwid.FlowWidget"""
 
361
 
            self.proxy.Enable(dbus_interface = client_interface)
 
 
337
            self.proxy.Set(client_interface, "Enabled",
 
 
338
                           dbus.Boolean(True), ignore_reply=True,
 
 
339
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
363
 
            self.proxy.Disable(dbus_interface = client_interface)
 
 
341
            self.proxy.Set(client_interface, "Enabled", False,
 
 
343
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
365
345
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
366
 
                               dbus_interface = client_interface)
 
 
346
                               dbus_interface=client_interface,
 
368
349
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
369
 
                                  dbus_interface = client_interface)
 
 
350
                               dbus_interface=client_interface,
 
370
352
        elif key == "R" or key == "_" or key == "ctrl k":
 
371
353
            self.server_proxy_object.RemoveClient(self.proxy
 
374
 
            self.proxy.StartChecker(dbus_interface = client_interface)
 
 
357
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
358
                           dbus.Boolean(True), ignore_reply=True,
 
 
359
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
376
 
            self.proxy.StopChecker(dbus_interface = client_interface)
 
 
361
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
362
                           dbus.Boolean(False), ignore_reply=True,
 
 
363
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
378
 
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
 
365
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
380
368
#         elif key == "p" or key == "=":
 
381
369
#             self.proxy.pause()
 
 
414
403
    """This is the entire user interface - the whole screen
 
415
404
    with boxes, lists of client widgets, etc.
 
417
 
    def __init__(self, max_log_length=1000):
 
 
406
    def __init__(self, max_log_length=1000, log_level=1):
 
418
407
        DBusGMainLoop(set_as_default=True)
 
420
409
        self.screen = urwid.curses_display.Screen()
 
422
411
        self.screen.register_palette((
 
424
413
                 "default", "default", None),
 
426
 
                 "default", "default", "bold"),
 
 
415
                 "bold", "default", "bold"),
 
427
416
                ("underline-blink",
 
428
 
                 "default", "default", "underline"),
 
 
417
                 "underline,blink", "default", "underline,blink"),
 
430
 
                 "default", "default", "standout"),
 
 
419
                 "standout", "default", "standout"),
 
431
420
                ("bold-underline-blink",
 
432
 
                 "default", "default", ("bold", "underline")),
 
 
421
                 "bold,underline,blink", "default",
 
 
422
                 "bold,underline,blink"),
 
433
423
                ("bold-standout",
 
434
 
                 "default", "default", ("bold", "standout")),
 
 
424
                 "bold,standout", "default", "bold,standout"),
 
435
425
                ("underline-blink-standout",
 
436
 
                 "default", "default", ("underline", "standout")),
 
 
426
                 "underline,blink,standout", "default",
 
 
427
                 "underline,blink,standout"),
 
437
428
                ("bold-underline-blink-standout",
 
438
 
                 "default", "default", ("bold", "underline",
 
 
429
                 "bold,underline,blink,standout", "default",
 
 
430
                 "bold,underline,blink,standout"),
 
442
433
        if urwid.supports_unicode():
 
443
 
            self.divider = "─" # \u2500
 
444
 
            #self.divider = "━" # \u2501
 
 
434
            self.divider = "─"  # \u2500
 
446
 
            #self.divider = "-" # \u002d
 
447
 
            self.divider = "_" # \u005f
 
 
436
            self.divider = "_"  # \u005f
 
449
438
        self.screen.start()
 
451
440
        self.size = self.screen.get_cols_rows()
 
453
442
        self.clients = urwid.SimpleListWalker([])
 
454
443
        self.clients_dict = {}
 
456
445
        # We will add Text widgets to this list
 
458
447
        self.max_log_length = max_log_length
 
 
449
        self.log_level = log_level
 
460
451
        # We keep a reference to the log widget so we can remove it
 
461
452
        # from the ListWalker without it getting destroyed
 
462
453
        self.logbox = ConstrainedListBox(self.log)
 
464
455
        # This keeps track of whether self.uilist currently has
 
465
456
        # self.logbox in it or not
 
466
457
        self.log_visible = True
 
467
458
        self.log_wrap = "any"
 
470
461
        self.log_message_raw(("bold",
 
471
462
                              "Mandos Monitor version " + version))
 
472
463
        self.log_message_raw(("bold",
 
473
464
                              "q: Quit  ?: Help"))
 
475
466
        self.busname = domain + '.Mandos'
 
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,
 
 
467
        self.main_loop = GLib.MainLoop()
 
520
469
    def client_not_found(self, fingerprint, address):
 
521
 
        self.log_message(("Client with address %s and fingerprint %s"
 
522
 
                          " could not be found" % (address,
 
 
470
        self.log_message("Client with address {} and fingerprint {}"
 
 
471
                         " could not be found"
 
 
472
                         .format(address, fingerprint))
 
525
474
    def rebuild(self):
 
526
475
        """This rebuilds the User Interface.
 
527
476
        Call this when the widget layout needs to change"""
 
529
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
 
478
        # self.uilist.append(urwid.ListBox(self.clients))
 
530
479
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
532
 
                                       #header=urwid.Divider(),
 
 
481
                                       # header=urwid.Divider(),
 
535
 
                                       urwid.Divider(div_char=
 
 
483
                                       footer=urwid.Divider(
 
 
484
                                           div_char=self.divider)))
 
537
485
        if self.log_visible:
 
538
486
            self.uilist.append(self.logbox)
 
540
487
        self.topwidget = urwid.Pile(self.uilist)
 
542
 
    def log_message(self, message):
 
 
489
    def log_message(self, message, level=1):
 
 
490
        """Log message formatted with timestamp"""
 
 
491
        if level < self.log_level:
 
543
493
        timestamp = datetime.datetime.now().isoformat()
 
544
 
        self.log_message_raw(timestamp + ": " + message)
 
546
 
    def log_message_raw(self, markup):
 
 
494
        self.log_message_raw("{}: {}".format(timestamp, message),
 
 
497
    def log_message_raw(self, markup, level=1):
 
547
498
        """Add a log message to the log buffer."""
 
 
499
        if level < self.log_level:
 
548
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
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]
 
 
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]
 
552
505
        self.logbox.set_focus(len(self.logbox.body.contents),
 
553
506
                              coming_from="above")
 
556
509
    def toggle_log_display(self):
 
557
510
        """Toggle visibility of the log buffer."""
 
558
511
        self.log_visible = not self.log_visible
 
560
 
        #self.log_message("Log visibility changed to: "
 
561
 
        #                 + unicode(self.log_visible))
 
 
513
        self.log_message("Log visibility changed to: {}"
 
 
514
                         .format(self.log_visible), level=0)
 
563
516
    def change_log_display(self):
 
564
517
        """Change type of log display.
 
565
518
        Currently, this toggles wrapping of text lines."""
 
 
569
522
            self.log_wrap = "clip"
 
570
523
        for textwidget in self.log:
 
571
524
            textwidget.set_wrap_mode(self.log_wrap)
 
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
 
 
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
 
578
532
        Mandos server object."""
 
 
533
        if client_interface not in interfaces:
 
 
534
            # Not a Mandos client object; ignore
 
580
537
            client = self.clients_dict[path]
 
584
 
        self.remove_client(client, path)
 
586
 
    def add_new_client(self, 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
 
587
554
        client_proxy_object = self.bus.get_object(self.busname, path)
 
588
 
        self.add_client(MandosClientWidget(server_proxy_object
 
591
 
                                           =client_proxy_object,
 
 
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])),
 
600
564
    def add_client(self, client, path=None):
 
601
565
        self.clients.append(client)
 
603
567
            path = client.proxy.object_path
 
604
568
        self.clients_dict[path] = client
 
605
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
 
569
        self.clients.sort(key=lambda c: c.properties["Name"])
 
608
572
    def remove_client(self, client, path=None):
 
609
573
        self.clients.remove(client)
 
611
575
            path = client.proxy.object_path
 
612
576
        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([])
 
620
579
    def refresh(self):
 
621
580
        """Redraw the screen"""
 
622
581
        canvas = self.topwidget.render(self.size, focus=True)
 
623
582
        self.screen.draw_screen(self.size, canvas)
 
626
585
        """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),
 
628
 
        self._input_callback_tag = (gobject.io_add_watch
 
 
630
        self._input_callback_tag = (GLib.io_add_watch
 
629
631
                                    (sys.stdin.fileno(),
 
631
633
                                     self.process_input))
 
632
634
        self.main_loop.run()
 
633
635
        # Main loop has finished, we should close everything now
 
634
 
        gobject.source_remove(self._input_callback_tag)
 
 
636
        GLib.source_remove(self._input_callback_tag)
 
635
637
        self.screen.stop()
 
638
640
        self.main_loop.quit()
 
640
642
    def process_input(self, source, condition):
 
641
643
        keys = self.screen.get_input()
 
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
 
 
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
 
654
656
                key = translations[key]
 
655
657
            except KeyError:    # :-)
 
658
660
            if key == "q" or key == "Q":
 
661
663
            elif key == "window resize":
 
662
664
                self.size = self.screen.get_cols_rows()
 
664
 
            elif key == "\f":  # Ctrl-L
 
 
666
            elif key == "ctrl l":
 
666
669
            elif key == "l" or key == "D":
 
667
670
                self.toggle_log_display()