41
37
from dbus.mainloop.glib import DBusGMainLoop
 
42
 
from gi.repository import GLib
 
48
 
if sys.version_info.major == 2:
 
51
46
locale.setlocale(locale.LC_ALL, '')
 
54
49
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
56
51
# Some useful constants
 
57
 
domain = 'se.recompile'
 
 
52
domain = 'se.bsnet.fukt'
 
58
53
server_interface = domain + '.Mandos'
 
59
54
client_interface = domain + '.Mandos.Client'
 
63
 
    dbus.OBJECT_MANAGER_IFACE
 
64
 
except AttributeError:
 
65
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
 
57
# Always run in monochrome mode
 
 
58
urwid.curses_display.curses.has_colors = lambda : False
 
 
60
# Urwid doesn't support blinking, but we want it.  Since we have no
 
 
61
# use for underline on its own, we make underline also always blink.
 
 
62
urwid.curses_display.curses.A_UNDERLINE |= (
 
 
63
    urwid.curses_display.curses.A_BLINK)
 
67
65
def isoformat_to_datetime(iso):
 
68
66
    "Parse an ISO 8601 date string to a datetime.datetime()"
 
 
85
83
    properties and calls a hook function when any of them are
 
88
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
 
86
    def __init__(self, proxy_object=None, *args, **kwargs):
 
89
87
        self.proxy = proxy_object # Mandos Client proxy object
 
90
 
        self.properties = dict() if properties is None else properties
 
 
89
        self.properties = dict()
 
91
90
        self.property_changed_match = (
 
92
 
            self.proxy.connect_to_signal("PropertiesChanged",
 
93
 
                                         self.properties_changed,
 
94
 
                                         dbus.PROPERTIES_IFACE,
 
 
91
            self.proxy.connect_to_signal("PropertyChanged",
 
 
92
                                         self.property_changed,
 
97
 
        if properties is None:
 
98
 
            self.properties.update(
 
99
 
                self.proxy.GetAll(client_interface,
 
101
 
                                  = dbus.PROPERTIES_IFACE))
 
103
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
 
96
        self.properties.update(
 
 
97
            self.proxy.GetAll(client_interface,
 
 
98
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
 
100
        #XXX This breaks good super behaviour
 
 
101
#        super(MandosClientPropertyCache, self).__init__(
 
105
 
    def properties_changed(self, interface, properties, invalidated):
 
106
 
        """This is called whenever we get a PropertiesChanged signal
 
107
 
        It updates the changed properties in the "properties" dict.
 
 
104
    def property_changed(self, property=None, value=None):
 
 
105
        """This is called whenever we get a PropertyChanged signal
 
 
106
        It updates the changed property in the "properties" dict.
 
109
108
        # Update properties dict with new value
 
110
 
        if interface == client_interface:
 
111
 
            self.properties.update(properties)
 
 
109
        self.properties[property] = value
 
 
111
    def delete(self, *args, **kwargs):
 
114
112
        self.property_changed_match.remove()
 
 
113
        super(MandosClientPropertyCache, self).__init__(
 
117
117
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
 
130
130
        self.logger = logger
 
132
132
        self._update_timer_callback_tag = None
 
 
133
        self._update_timer_callback_lock = 0
 
 
134
        self.last_checker_failed = False
 
134
136
        # The widget shown normally
 
135
137
        self._text_widget = urwid.Text("")
 
136
138
        # The widget shown when we have focus
 
137
139
        self._focus_text_widget = urwid.Text("")
 
138
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
 
140
        super(MandosClientWidget, self).__init__(
 
 
141
            update_hook=update_hook, delete_hook=delete_hook,
 
140
144
        self.opened = False
 
 
146
        last_checked_ok = isoformat_to_datetime(self.properties
 
 
148
        if last_checked_ok is None:
 
 
149
            self.last_checker_failed = True
 
 
151
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
 
158
        if self.last_checker_failed:
 
 
159
            self.using_timer(True)
 
 
161
        if self.need_approval:
 
 
162
            self.using_timer(True)
 
142
164
        self.match_objects = (
 
143
165
            self.proxy.connect_to_signal("CheckerCompleted",
 
144
166
                                         self.checker_completed,
 
 
161
183
                                         client_interface,
 
162
184
                                         byte_arrays=True))
 
163
 
        self.logger('Created client {}'
 
164
 
                    .format(self.properties["Name"]), level=0)
 
 
185
        #self.logger('Created client %s' % (self.properties["Name"]))
 
 
187
    def property_changed(self, property=None, value=None):
 
 
188
        super(self, MandosClientWidget).property_changed(property,
 
 
190
        if property == "ApprovalPending":
 
 
191
            using_timer(bool(value))
 
166
193
    def using_timer(self, flag):
 
167
194
        """Call this method with True or False when timer should be
 
168
195
        activated or deactivated.
 
170
 
        if flag and self._update_timer_callback_tag is None:
 
171
 
            # Will update the shown timer value every second
 
172
 
            self._update_timer_callback_tag = (GLib.timeout_add
 
 
197
        old = self._update_timer_callback_lock
 
 
199
            self._update_timer_callback_lock += 1
 
 
201
            self._update_timer_callback_lock -= 1
 
 
202
        if old == 0 and self._update_timer_callback_lock:
 
 
203
            self._update_timer_callback_tag = (gobject.timeout_add
 
174
205
                                                self.update_timer))
 
175
 
        elif not (flag or self._update_timer_callback_tag is None):
 
176
 
            GLib.source_remove(self._update_timer_callback_tag)
 
 
206
        elif old and self._update_timer_callback_lock == 0:
 
 
207
            gobject.source_remove(self._update_timer_callback_tag)
 
177
208
            self._update_timer_callback_tag = None
 
179
210
    def checker_completed(self, exitstatus, condition, command):
 
180
211
        if exitstatus == 0:
 
181
 
            self.logger('Checker for client {} (command "{}")'
 
182
 
                        ' succeeded'.format(self.properties["Name"],
 
 
212
            if self.last_checker_failed:
 
 
213
                self.last_checker_failed = False
 
 
214
                self.using_timer(False)
 
 
215
            #self.logger('Checker for client %s (command "%s")'
 
 
217
            #            % (self.properties["Name"], command))
 
 
221
        if not self.last_checker_failed:
 
 
222
            self.last_checker_failed = True
 
 
223
            self.using_timer(True)
 
187
224
        if os.WIFEXITED(condition):
 
188
 
            self.logger('Checker for client {} (command "{}") failed'
 
190
 
                        .format(self.properties["Name"], command,
 
191
 
                                os.WEXITSTATUS(condition)))
 
 
225
            self.logger('Checker for client %s (command "%s")'
 
 
226
                        ' failed with exit code %s'
 
 
227
                        % (self.properties["Name"], command,
 
 
228
                           os.WEXITSTATUS(condition)))
 
192
229
        elif os.WIFSIGNALED(condition):
 
193
 
            self.logger('Checker for client {} (command "{}") was'
 
194
 
                        ' killed by signal {}'
 
195
 
                        .format(self.properties["Name"], command,
 
196
 
                                os.WTERMSIG(condition)))
 
 
230
            self.logger('Checker for client %s (command "%s")'
 
 
231
                        ' was killed by signal %s'
 
 
232
                        % (self.properties["Name"], command,
 
 
233
                           os.WTERMSIG(condition)))
 
 
234
        elif os.WCOREDUMP(condition):
 
 
235
            self.logger('Checker for client %s (command "%s")'
 
 
237
                        % (self.properties["Name"], command))
 
 
239
            self.logger('Checker for client %s completed'
 
199
243
    def checker_started(self, command):
 
200
 
        """Server signals that a checker started."""
 
201
 
        self.logger('Client {} started checker "{}"'
 
202
 
                    .format(self.properties["Name"],
 
 
244
        #self.logger('Client %s started checker "%s"'
 
 
245
        #            % (self.properties["Name"], unicode(command)))
 
205
248
    def got_secret(self):
 
206
 
        self.logger('Client {} received its secret'
 
207
 
                    .format(self.properties["Name"]))
 
 
249
        self.last_checker_failed = False
 
 
250
        self.logger('Client %s received its secret'
 
 
251
                    % self.properties["Name"])
 
209
253
    def need_approval(self, timeout, default):
 
211
 
            message = 'Client {} needs approval within {} seconds'
 
 
255
            message = 'Client %s needs approval within %s seconds'
 
213
 
            message = 'Client {} will get its secret in {} seconds'
 
214
 
        self.logger(message.format(self.properties["Name"],
 
 
257
            message = 'Client %s will get its secret in %s seconds'
 
 
259
                    % (self.properties["Name"], timeout/1000))
 
 
260
        self.using_timer(True)
 
217
262
    def rejected(self, reason):
 
218
 
        self.logger('Client {} was rejected; reason: {}'
 
219
 
                    .format(self.properties["Name"], reason))
 
 
263
        self.logger('Client %s was rejected; reason: %s'
 
 
264
                    % (self.properties["Name"], reason))
 
221
266
    def selectable(self):
 
222
267
        """Make this a "selectable" widget.
 
 
259
304
            last_approval_request = isoformat_to_datetime(
 
260
305
                self.properties["LastApprovalRequest"])
 
261
306
            if last_approval_request is not None:
 
262
 
                timer = max(timeout - (datetime.datetime.utcnow()
 
263
 
                                       - last_approval_request),
 
264
 
                            datetime.timedelta())
 
 
307
                timer = timeout - (datetime.datetime.utcnow()
 
 
308
                                   - last_approval_request)
 
266
310
                timer = datetime.timedelta()
 
267
311
            if self.properties["ApprovedByDefault"]:
 
268
 
                message = "Approval in {}. (d)eny?"
 
270
 
                message = "Denial in {}. (a)pprove?"
 
271
 
            message = message.format(str(timer).rsplit(".", 1)[0])
 
272
 
            self.using_timer(True)
 
273
 
        elif self.properties["LastCheckerStatus"] != 0:
 
274
 
            # When checker has failed, show timer until client expires
 
275
 
            expires = self.properties["Expires"]
 
277
 
                timer = datetime.timedelta(0)
 
279
 
                expires = (datetime.datetime.strptime
 
280
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
281
 
                timer = max(expires - datetime.datetime.utcnow(),
 
282
 
                            datetime.timedelta())
 
 
312
                message = "Approval in %s. (d)eny?"
 
 
314
                message = "Denial in %s. (a)pprove?"
 
 
315
            message = message % unicode(timer).rsplit(".", 1)[0]
 
 
316
        elif self.last_checker_failed:
 
 
317
            timeout = datetime.timedelta(milliseconds
 
 
320
            last_ok = isoformat_to_datetime(
 
 
321
                max((self.properties["LastCheckedOK"]
 
 
322
                     or self.properties["Created"]),
 
 
323
                    self.properties["LastEnabled"]))
 
 
324
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
283
325
            message = ('A checker has failed! Time until client'
 
285
 
                       .format(str(timer).rsplit(".", 1)[0]))
 
286
 
            self.using_timer(True)
 
 
327
                           % unicode(timer).rsplit(".", 1)[0])
 
288
329
            message = "enabled"
 
289
 
            self.using_timer(False)
 
290
 
        self._text = "{}{}".format(base, message)
 
 
330
        self._text = "%s%s" % (base, message)
 
292
332
        if not urwid.supports_unicode():
 
293
333
            self._text = self._text.encode("ascii", "replace")
 
294
334
        textlist = [("normal", self._text)]
 
 
306
346
            self.update_hook()
 
308
348
    def update_timer(self):
 
309
 
        """called by GLib. Will indefinitely loop until
 
310
 
        GLib.source_remove() on tag is called
 
313
351
        return True             # Keep calling this
 
315
 
    def delete(self, **kwargs):
 
 
353
    def delete(self, *args, **kwargs):
 
316
354
        if self._update_timer_callback_tag is not None:
 
317
 
            GLib.source_remove(self._update_timer_callback_tag)
 
 
355
            gobject.source_remove(self._update_timer_callback_tag)
 
318
356
            self._update_timer_callback_tag = None
 
319
357
        for match in self.match_objects:
 
321
359
        self.match_objects = ()
 
322
360
        if self.delete_hook is not None:
 
323
361
            self.delete_hook(self)
 
324
 
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
362
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
326
364
    def render(self, maxcolrow, focus=False):
 
327
365
        """Render differently if we have focus.
 
 
334
372
        This overrides the method from urwid.FlowWidget"""
 
336
 
            self.proxy.Set(client_interface, "Enabled",
 
337
 
                           dbus.Boolean(True), ignore_reply = True,
 
338
 
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
 
374
            self.proxy.Enable(dbus_interface = client_interface,
 
340
 
            self.proxy.Set(client_interface, "Enabled", False,
 
342
 
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
 
377
            self.proxy.Disable(dbus_interface = client_interface,
 
344
380
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
345
381
                               dbus_interface = client_interface,
 
 
376
 
    def properties_changed(self, interface, properties, invalidated):
 
377
 
        """Call self.update() if any properties changed.
 
 
410
    def property_changed(self, property=None, value=None,
 
 
412
        """Call self.update() if old value is not new value.
 
378
413
        This overrides the method from MandosClientPropertyCache"""
 
379
 
        old_values = { key: self.properties.get(key)
 
380
 
                       for key in properties.keys() }
 
381
 
        super(MandosClientWidget, self).properties_changed(
 
382
 
            interface, properties, invalidated)
 
383
 
        if any(old_values[key] != self.properties.get(key)
 
384
 
               for key in old_values):
 
 
414
        property_name = unicode(property)
 
 
415
        old_value = self.properties.get(property_name)
 
 
416
        super(MandosClientWidget, self).property_changed(
 
 
417
            property=property, value=value, *args, **kwargs)
 
 
418
        if self.properties.get(property_name) != old_value:
 
 
411
445
                 "default", "default", None),
 
413
 
                 "bold", "default", "bold"),
 
 
447
                 "default", "default", "bold"),
 
414
448
                ("underline-blink",
 
415
 
                 "underline,blink", "default", "underline,blink"),
 
 
449
                 "default", "default", "underline"),
 
417
 
                 "standout", "default", "standout"),
 
 
451
                 "default", "default", "standout"),
 
418
452
                ("bold-underline-blink",
 
419
 
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
 
453
                 "default", "default", ("bold", "underline")),
 
420
454
                ("bold-standout",
 
421
 
                 "bold,standout", "default", "bold,standout"),
 
 
455
                 "default", "default", ("bold", "standout")),
 
422
456
                ("underline-blink-standout",
 
423
 
                 "underline,blink,standout", "default",
 
424
 
                 "underline,blink,standout"),
 
 
457
                 "default", "default", ("underline", "standout")),
 
425
458
                ("bold-underline-blink-standout",
 
426
 
                 "bold,underline,blink,standout", "default",
 
427
 
                 "bold,underline,blink,standout"),
 
 
459
                 "default", "default", ("bold", "underline",
 
430
463
        if urwid.supports_unicode():
 
 
463
494
                              "q: Quit  ?: Help"))
 
465
496
        self.busname = domain + '.Mandos'
 
466
 
        self.main_loop = GLib.MainLoop()
 
 
497
        self.main_loop = gobject.MainLoop()
 
 
498
        self.bus = dbus.SystemBus()
 
 
499
        mandos_dbus_objc = self.bus.get_object(
 
 
500
            self.busname, "/", follow_name_owner_changes=True)
 
 
501
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
 
505
            mandos_clients = (self.mandos_serv
 
 
506
                              .GetAllClientsWithProperties())
 
 
507
        except dbus.exceptions.DBusException:
 
 
508
            mandos_clients = dbus.Dictionary()
 
 
511
         .connect_to_signal("ClientRemoved",
 
 
512
                            self.find_and_remove_client,
 
 
513
                            dbus_interface=server_interface,
 
 
516
         .connect_to_signal("ClientAdded",
 
 
518
                            dbus_interface=server_interface,
 
 
521
         .connect_to_signal("ClientNotFound",
 
 
522
                            self.client_not_found,
 
 
523
                            dbus_interface=server_interface,
 
 
525
        for path, client in mandos_clients.iteritems():
 
 
526
            client_proxy_object = self.bus.get_object(self.busname,
 
 
528
            self.add_client(MandosClientWidget(server_proxy_object
 
 
531
                                               =client_proxy_object,
 
468
541
    def client_not_found(self, fingerprint, address):
 
469
 
        self.log_message("Client with address {} and fingerprint {}"
 
470
 
                         " could not be found"
 
471
 
                         .format(address, fingerprint))
 
 
542
        self.log_message(("Client with address %s and fingerprint %s"
 
 
543
                          " could not be found" % (address,
 
473
546
    def rebuild(self):
 
474
547
        """This rebuilds the User Interface.
 
 
485
558
        if self.log_visible:
 
486
559
            self.uilist.append(self.logbox)
 
487
561
        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:
 
 
563
    def log_message(self, message):
 
493
564
        timestamp = datetime.datetime.now().isoformat()
 
494
 
        self.log_message_raw("{}: {}".format(timestamp, message),
 
 
565
        self.log_message_raw(timestamp + ": " + message)
 
497
 
    def log_message_raw(self, markup, level=1):
 
 
567
    def log_message_raw(self, markup):
 
498
568
        """Add a log message to the log buffer."""
 
499
 
        if level < self.log_level:
 
501
569
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
502
570
        if (self.max_log_length
 
503
571
            and len(self.log) > self.max_log_length):
 
 
522
590
            self.log_wrap = "clip"
 
523
591
        for textwidget in self.log:
 
524
592
            textwidget.set_wrap_mode(self.log_wrap)
 
525
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
 
593
        #self.log_message("Wrap mode: " + self.log_wrap)
 
528
 
    def find_and_remove_client(self, path, interfaces):
 
 
595
    def find_and_remove_client(self, path, name):
 
529
596
        """Find a client by its object path and remove it.
 
531
 
        This is connected to the InterfacesRemoved signal from the
 
 
598
        This is connected to the ClientRemoved signal from the
 
532
599
        Mandos server object."""
 
533
 
        if client_interface not in interfaces:
 
534
 
            # Not a Mandos client object; ignore
 
537
601
            client = self.clients_dict[path]
 
540
 
            self.log_message("Unknown client {!r} removed"
 
 
604
            self.log_message("Unknown client %r (%r) removed", name,
 
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
 
 
609
    def add_new_client(self, path):
 
554
610
        client_proxy_object = self.bus.get_object(self.busname, path)
 
555
611
        self.add_client(MandosClientWidget(server_proxy_object
 
556
612
                                           =self.mandos_serv,
 
 
591
649
        """Start the main loop and exit when it's done."""
 
592
 
        self.bus = dbus.SystemBus()
 
593
 
        mandos_dbus_objc = self.bus.get_object(
 
594
 
            self.busname, "/", follow_name_owner_changes=True)
 
595
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
599
 
            mandos_clients = (self.mandos_serv
 
600
 
                              .GetAllClientsWithProperties())
 
601
 
            if not mandos_clients:
 
602
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
603
 
        except dbus.exceptions.DBusException:
 
604
 
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
605
 
            mandos_clients = dbus.Dictionary()
 
608
 
         .connect_to_signal("InterfacesRemoved",
 
609
 
                            self.find_and_remove_client,
 
611
 
                            = dbus.OBJECT_MANAGER_IFACE,
 
614
 
         .connect_to_signal("InterfacesAdded",
 
617
 
                            = dbus.OBJECT_MANAGER_IFACE,
 
620
 
         .connect_to_signal("ClientNotFound",
 
621
 
                            self.client_not_found,
 
622
 
                            dbus_interface=server_interface,
 
624
 
        for path, client in mandos_clients.items():
 
625
 
            client_proxy_object = self.bus.get_object(self.busname,
 
627
 
            self.add_client(MandosClientWidget(server_proxy_object
 
630
 
                                               =client_proxy_object,
 
641
 
        self._input_callback_tag = (GLib.io_add_watch
 
 
651
        self._input_callback_tag = (gobject.io_add_watch
 
642
652
                                    (sys.stdin.fileno(),
 
644
654
                                     self.process_input))
 
645
655
        self.main_loop.run()
 
646
656
        # Main loop has finished, we should close everything now
 
647
 
        GLib.source_remove(self._input_callback_tag)
 
 
657
        gobject.source_remove(self._input_callback_tag)
 
648
658
        self.screen.stop()