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mandos-monitor
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from __future__ import division, absolute_import, with_statement
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6
import sys
 
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import os
7
8
import signal
8
9
 
 
10
import datetime
 
11
 
9
12
import urwid.curses_display
10
13
import urwid
11
14
 
16
19
 
17
20
import UserList
18
21
 
 
22
import locale
 
23
 
 
24
locale.setlocale(locale.LC_ALL, u'')
 
25
 
 
26
import logging
 
27
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
28
 
19
29
# Some useful constants
20
30
domain = 'se.bsnet.fukt'
21
31
server_interface = domain + '.Mandos'
22
32
client_interface = domain + '.Mandos.Client'
23
 
version = "1.0.14"
 
33
version = "1.0.15"
24
34
 
25
35
# Always run in monochrome mode
26
36
urwid.curses_display.curses.has_colors = lambda : False
30
40
urwid.curses_display.curses.A_UNDERLINE |= (
31
41
    urwid.curses_display.curses.A_BLINK)
32
42
 
 
43
def isoformat_to_datetime(iso):
 
44
    "Parse an ISO 8601 date string to a datetime.datetime()"
 
45
    if not iso:
 
46
        return None
 
47
    d, t = iso.split(u"T", 1)
 
48
    year, month, day = d.split(u"-", 2)
 
49
    hour, minute, second = t.split(u":", 2)
 
50
    second, fraction = divmod(float(second), 1)
 
51
    return datetime.datetime(int(year),
 
52
                             int(month),
 
53
                             int(day),
 
54
                             int(hour),
 
55
                             int(minute),
 
56
                             int(second),           # Whole seconds
 
57
                             int(fraction*1000000)) # Microseconds
 
58
 
33
59
class MandosClientPropertyCache(object):
34
60
    """This wraps a Mandos Client D-Bus proxy object, caches the
35
61
    properties and calls a hook function when any of them are
36
62
    changed.
37
63
    """
38
 
    def __init__(self, proxy_object=None, properties=None, *args,
39
 
                 **kwargs):
40
 
        # Type conversion mapping
41
 
        self.type_map = {
42
 
            dbus.ObjectPath: unicode,
43
 
            dbus.ByteArray: str,
44
 
            dbus.Signature: unicode,
45
 
            dbus.Byte: chr,
46
 
            dbus.Int16: int,
47
 
            dbus.UInt16: int,
48
 
            dbus.Int32: int,
49
 
            dbus.UInt32: int,
50
 
            dbus.Int64: int,
51
 
            dbus.UInt64: int,
52
 
            dbus.Dictionary: dict,
53
 
            dbus.Array: list,
54
 
            dbus.String: unicode,
55
 
            dbus.Boolean: bool,
56
 
            dbus.Double: float,
57
 
            dbus.Struct: tuple,
58
 
            }
 
64
    def __init__(self, proxy_object=None, *args, **kwargs):
59
65
        self.proxy = proxy_object # Mandos Client proxy object
60
66
        
61
 
        if properties is None:
62
 
            self.properties = dict()
63
 
        else:
64
 
            self.properties = dict(self.convert_property(prop, val)
65
 
                                   for prop, val in
66
 
                                   properties.iteritems())
67
 
        self.proxy.connect_to_signal("PropertyChanged",
 
67
        self.properties = dict()
 
68
        self.proxy.connect_to_signal(u"PropertyChanged",
68
69
                                     self.property_changed,
69
70
                                     client_interface,
70
71
                                     byte_arrays=True)
71
72
        
72
 
        if properties is None:
73
 
            self.properties.update(
74
 
                self.convert_property(prop, val)
75
 
                for prop, val in
76
 
                self.proxy.GetAll(client_interface,
77
 
                                  dbus_interface =
78
 
                                  dbus.PROPERTIES_IFACE).iteritems())
79
 
        super(MandosClientPropertyCache, self).__init__(
80
 
            proxy_object=proxy_object,
81
 
            properties=properties, *args, **kwargs)
 
73
        self.properties.update(
 
74
            self.proxy.GetAll(client_interface,
 
75
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
76
 
 
77
        #XXX This break good super behaviour!
 
78
#        super(MandosClientPropertyCache, self).__init__(
 
79
#            *args, **kwargs)
82
80
    
83
 
    def convert_property(self, property, value):
84
 
        """This converts the arguments from a D-Bus signal, which are
85
 
        D-Bus types, into normal Python types, using a conversion
86
 
        function from "self.type_map".
87
 
        """
88
 
        property_name = unicode(property) # Always a dbus.String
89
 
        if isinstance(value, dbus.UTF8String):
90
 
            # Should not happen, but prepare for it anyway
91
 
            value = dbus.String(str(value).decode("utf-8"))
92
 
        try:
93
 
            convfunc = self.type_map[type(value)]
94
 
        except KeyError:
95
 
            # Unknown type, return unmodified
96
 
            return property_name, value
97
 
        return property_name, convfunc(value)
98
81
    def property_changed(self, property=None, value=None):
99
82
        """This is called whenever we get a PropertyChanged signal
100
83
        It updates the changed property in the "properties" dict.
101
84
        """
102
 
        # Convert name and value
103
 
        property_name, cvalue = self.convert_property(property, value)
104
85
        # Update properties dict with new value
105
 
        self.properties[property_name] = cvalue
 
86
        self.properties[property] = value
106
87
 
107
88
 
108
89
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
110
91
    """
111
92
    
112
93
    def __init__(self, server_proxy_object=None, update_hook=None,
113
 
                 delete_hook=None, *args, **kwargs):
 
94
                 delete_hook=None, logger=None, *args, **kwargs):
114
95
        # Called on update
115
96
        self.update_hook = update_hook
116
97
        # Called on delete
117
98
        self.delete_hook = delete_hook
118
99
        # Mandos Server proxy object
119
100
        self.server_proxy_object = server_proxy_object
 
101
        # Logger
 
102
        self.logger = logger
 
103
        
 
104
        self._update_timer_callback_tag = None
 
105
        self.last_checker_failed = False
120
106
        
121
107
        # The widget shown normally
122
 
        self._text_widget = urwid.Text("")
 
108
        self._text_widget = urwid.Text(u"")
123
109
        # The widget shown when we have focus
124
 
        self._focus_text_widget = urwid.Text("")
 
110
        self._focus_text_widget = urwid.Text(u"")
125
111
        super(MandosClientWidget, self).__init__(
126
112
            update_hook=update_hook, delete_hook=delete_hook,
127
113
            *args, **kwargs)
128
114
        self.update()
129
115
        self.opened = False
 
116
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
117
                                     self.checker_completed,
 
118
                                     client_interface,
 
119
                                     byte_arrays=True)
 
120
        self.proxy.connect_to_signal(u"CheckerStarted",
 
121
                                     self.checker_started,
 
122
                                     client_interface,
 
123
                                     byte_arrays=True)
 
124
        self.proxy.connect_to_signal(u"GotSecret",
 
125
                                     self.got_secret,
 
126
                                     client_interface,
 
127
                                     byte_arrays=True)
 
128
        self.proxy.connect_to_signal(u"NeedApproval",
 
129
                                     self.need_approval,
 
130
                                     client_interface,
 
131
                                     byte_arrays=True)
 
132
        self.proxy.connect_to_signal(u"Rejected",
 
133
                                     self.rejected,
 
134
                                     client_interface,
 
135
                                     byte_arrays=True)
 
136
        last_checked_ok = isoformat_to_datetime(self.properties
 
137
                                                [u"LastCheckedOK"])
 
138
        if last_checked_ok is None:
 
139
            self.last_checker_failed = True
 
140
        else:
 
141
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
142
                                         - last_checked_ok)
 
143
                                        > datetime.timedelta
 
144
                                        (milliseconds=
 
145
                                         self.properties
 
146
                                         [u"Interval"]))
 
147
        if self.last_checker_failed:
 
148
            self._update_timer_callback_tag = (gobject.timeout_add
 
149
                                               (1000,
 
150
                                                self.update_timer))
 
151
    
 
152
    def checker_completed(self, exitstatus, condition, command):
 
153
        if exitstatus == 0:
 
154
            if self.last_checker_failed:
 
155
                self.last_checker_failed = False
 
156
                gobject.source_remove(self._update_timer_callback_tag)
 
157
                self._update_timer_callback_tag = None
 
158
            #self.logger(u'Checker for client %s (command "%s")'
 
159
            #            u' was successful'
 
160
            #            % (self.properties[u"Name"], command))
 
161
            self.update()
 
162
            return
 
163
        # Checker failed
 
164
        if not self.last_checker_failed:
 
165
            self.last_checker_failed = True
 
166
            self._update_timer_callback_tag = (gobject.timeout_add
 
167
                                               (1000,
 
168
                                                self.update_timer))
 
169
        if os.WIFEXITED(condition):
 
170
            self.logger(u'Checker for client %s (command "%s")'
 
171
                        u' failed with exit code %s'
 
172
                        % (self.properties[u"Name"], command,
 
173
                           os.WEXITSTATUS(condition)))
 
174
        elif os.WIFSIGNALED(condition):
 
175
            self.logger(u'Checker for client %s (command "%s")'
 
176
                        u' was killed by signal %s'
 
177
                        % (self.properties[u"Name"], command,
 
178
                           os.WTERMSIG(condition)))
 
179
        elif os.WCOREDUMP(condition):
 
180
            self.logger(u'Checker for client %s (command "%s")'
 
181
                        u' dumped core'
 
182
                        % (self.properties[u"Name"], command))
 
183
        else:
 
184
            self.logger(u'Checker for client %s completed'
 
185
                        u' mysteriously')
 
186
        self.update()
 
187
    
 
188
    def checker_started(self, command):
 
189
        #self.logger(u'Client %s started checker "%s"'
 
190
        #            % (self.properties[u"Name"], unicode(command)))
 
191
        pass
 
192
    
 
193
    def got_secret(self):
 
194
        self.last_checker_failed = False
 
195
        self.logger(u'Client %s received its secret'
 
196
                    % self.properties[u"Name"])
 
197
    
 
198
    def need_approval(self, timeout, default):
 
199
        if not default:
 
200
            message = u'Client %s needs approval within %s seconds'
 
201
        else:
 
202
            message = u'Client %s will get its secret in %s seconds'
 
203
        self.logger(message
 
204
                    % (self.properties[u"Name"], timeout/1000))
 
205
    
 
206
    def rejected(self, reason):
 
207
        self.logger(u'Client %s was rejected; reason: %s'
 
208
                    % (self.properties[u"Name"], reason))
130
209
    
131
210
    def selectable(self):
132
211
        """Make this a "selectable" widget.
154
233
                          u"bold-underline-blink":
155
234
                              u"bold-underline-blink-standout",
156
235
                          }
157
 
        
 
236
 
158
237
        # Rebuild focus and non-focus widgets using current properties
159
 
        self._text = (u'name="%(name)s", enabled=%(enabled)s'
160
 
                      % self.properties)
 
238
 
 
239
        # Base part of a client. Name!
 
240
        base = (u'%(name)s: '
 
241
                      % {u"name": self.properties[u"Name"]})
 
242
        if not self.properties[u"Enabled"]:
 
243
            message = u"DISABLED"
 
244
        elif self.properties[u"ApprovalPending"]:
 
245
            if self.properties[u"ApprovedByDefault"]:
 
246
                message = u"Connection established to client. (d)eny?"
 
247
            else:
 
248
                message = u"Seeks approval to send secret. (a)pprove?"
 
249
        elif self.last_checker_failed:
 
250
            timeout = datetime.timedelta(milliseconds
 
251
                                         = self.properties
 
252
                                         [u"Timeout"])
 
253
            last_ok = isoformat_to_datetime(
 
254
                max((self.properties[u"LastCheckedOK"]
 
255
                     or self.properties[u"Created"]),
 
256
                    self.properties[u"LastEnabled"]))
 
257
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
258
            message = (u'A checker has failed! Time until client'
 
259
                       u' gets diabled: %s'
 
260
                           % unicode(timer).rsplit(".", 1)[0])
 
261
        else:
 
262
            message = u"enabled"
 
263
        self._text = "%s%s" % (base, message)
 
264
            
161
265
        if not urwid.supports_unicode():
162
266
            self._text = self._text.encode("ascii", "replace")
163
 
        textlist = [(u"normal", u"BLÄRGH: "), (u"bold", self._text)]
 
267
        textlist = [(u"normal", self._text)]
164
268
        self._text_widget.set_text(textlist)
165
269
        self._focus_text_widget.set_text([(with_standout[text[0]],
166
270
                                           text[1])
174
278
        if self.update_hook is not None:
175
279
            self.update_hook()
176
280
    
 
281
    def update_timer(self):
 
282
        "called by gobject"
 
283
        self.update()
 
284
        return True             # Keep calling this
 
285
    
177
286
    def delete(self):
 
287
        if self._update_timer_callback_tag is not None:
 
288
            gobject.source_remove(self._update_timer_callback_tag)
 
289
            self._update_timer_callback_tag = None
178
290
        if self.delete_hook is not None:
179
291
            self.delete_hook(self)
180
292
    
187
299
    def keypress(self, (maxcol,), key):
188
300
        """Handle keys.
189
301
        This overrides the method from urwid.FlowWidget"""
190
 
        if key == u"e" or key == u"+":
191
 
            self.proxy.Enable()
192
 
        elif key == u"d" or key == u"-":
193
 
            self.proxy.Disable()
194
 
        elif key == u"r" or key == u"_":
 
302
        if key == u"+":
 
303
            self.proxy.Enable(dbus_interface = client_interface)
 
304
        elif key == u"-":
 
305
            self.proxy.Disable(dbus_interface = client_interface)
 
306
        elif key == u"a":
 
307
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
308
                               dbus_interface = client_interface)
 
309
        elif key == u"d":
 
310
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
311
                                  dbus_interface = client_interface)
 
312
        elif key == u"r" or key == u"_" or key == u"ctrl k":
195
313
            self.server_proxy_object.RemoveClient(self.proxy
196
314
                                                  .object_path)
197
315
        elif key == u"s":
198
 
            self.proxy.StartChecker()
199
 
        elif key == u"c":
200
 
            self.proxy.StopChecker()
 
316
            self.proxy.StartChecker(dbus_interface = client_interface)
201
317
        elif key == u"S":
202
 
            self.proxy.CheckedOK()
 
318
            self.proxy.StopChecker(dbus_interface = client_interface)
 
319
        elif key == u"C":
 
320
            self.proxy.CheckedOK(dbus_interface = client_interface)
203
321
        # xxx
204
322
#         elif key == u"p" or key == "=":
205
323
#             self.proxy.pause()
207
325
#             self.proxy.unpause()
208
326
#         elif key == u"RET":
209
327
#             self.open()
 
328
#        elif key == u"+":
 
329
#            self.proxy.Approve(True)
 
330
#        elif key == u"-":
 
331
#            self.proxy.Approve(False)
210
332
        else:
211
333
            return key
212
334
    
222
344
            self.update()
223
345
 
224
346
 
 
347
class ConstrainedListBox(urwid.ListBox):
 
348
    """Like a normal urwid.ListBox, but will consume all "up" or
 
349
    "down" key presses, thus not allowing any containing widgets to
 
350
    use them as an excuse to shift focus away from this widget.
 
351
    """
 
352
    def keypress(self, (maxcol, maxrow), key):
 
353
        ret = super(ConstrainedListBox, self).keypress((maxcol,
 
354
                                                        maxrow), key)
 
355
        if ret in (u"up", u"down"):
 
356
            return
 
357
        return ret
 
358
 
 
359
 
225
360
class UserInterface(object):
226
361
    """This is the entire user interface - the whole screen
227
362
    with boxes, lists of client widgets, etc.
228
363
    """
229
 
    def __init__(self):
230
 
        DBusGMainLoop(set_as_default=True )
 
364
    def __init__(self, max_log_length=1000):
 
365
        DBusGMainLoop(set_as_default=True)
231
366
        
232
367
        self.screen = urwid.curses_display.Screen()
233
368
        
251
386
                                          u"standout")),
252
387
                ))
253
388
        
 
389
        if urwid.supports_unicode():
 
390
            self.divider = u"─" # \u2500
 
391
            #self.divider = u"━" # \u2501
 
392
        else:
 
393
            #self.divider = u"-" # \u002d
 
394
            self.divider = u"_" # \u005f
 
395
        
254
396
        self.screen.start()
255
397
        
256
398
        self.size = self.screen.get_cols_rows()
257
399
        
258
400
        self.clients = urwid.SimpleListWalker([])
259
401
        self.clients_dict = {}
260
 
        self.topwidget = urwid.LineBox(urwid.ListBox(self.clients))
261
 
        #self.topwidget = urwid.ListBox(clients)
 
402
        
 
403
        # We will add Text widgets to this list
 
404
        self.log = []
 
405
        self.max_log_length = max_log_length
 
406
        
 
407
        # We keep a reference to the log widget so we can remove it
 
408
        # from the ListWalker without it getting destroyed
 
409
        self.logbox = ConstrainedListBox(self.log)
 
410
        
 
411
        # This keeps track of whether self.uilist currently has
 
412
        # self.logbox in it or not
 
413
        self.log_visible = True
 
414
        self.log_wrap = u"any"
 
415
        
 
416
        self.rebuild()
 
417
        self.log_message_raw((u"bold",
 
418
                              u"Mandos Monitor version " + version))
 
419
        self.log_message_raw((u"bold",
 
420
                              u"q: Quit  ?: Help"))
262
421
        
263
422
        self.busname = domain + '.Mandos'
264
423
        self.main_loop = gobject.MainLoop()
275
434
            mandos_clients = dbus.Dictionary()
276
435
        
277
436
        (self.mandos_serv
278
 
         .connect_to_signal("ClientRemoved",
 
437
         .connect_to_signal(u"ClientRemoved",
279
438
                            self.find_and_remove_client,
280
439
                            dbus_interface=server_interface,
281
440
                            byte_arrays=True))
282
441
        (self.mandos_serv
283
 
         .connect_to_signal("ClientAdded",
 
442
         .connect_to_signal(u"ClientAdded",
284
443
                            self.add_new_client,
285
444
                            dbus_interface=server_interface,
286
445
                            byte_arrays=True))
287
 
        for path, client in (mandos_clients.iteritems()):
 
446
        (self.mandos_serv
 
447
         .connect_to_signal(u"ClientNotFound",
 
448
                            self.client_not_found,
 
449
                            dbus_interface=server_interface,
 
450
                            byte_arrays=True))
 
451
        for path, client in mandos_clients.iteritems():
288
452
            client_proxy_object = self.bus.get_object(self.busname,
289
453
                                                      path)
290
454
            self.add_client(MandosClientWidget(server_proxy_object
295
459
                                               update_hook
296
460
                                               =self.refresh,
297
461
                                               delete_hook
298
 
                                               =self.remove_client),
 
462
                                               =self.remove_client,
 
463
                                               logger
 
464
                                               =self.log_message),
299
465
                            path=path)
300
466
    
 
467
    def client_not_found(self, fingerprint, address):
 
468
        self.log_message((u"Client with address %s and fingerprint %s"
 
469
                          u" could not be found" % (address,
 
470
                                                    fingerprint)))
 
471
    
 
472
    def rebuild(self):
 
473
        """This rebuilds the User Interface.
 
474
        Call this when the widget layout needs to change"""
 
475
        self.uilist = []
 
476
        #self.uilist.append(urwid.ListBox(self.clients))
 
477
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
478
                                                          clients),
 
479
                                       #header=urwid.Divider(),
 
480
                                       header=None,
 
481
                                       footer=
 
482
                                       urwid.Divider(div_char=
 
483
                                                     self.divider)))
 
484
        if self.log_visible:
 
485
            self.uilist.append(self.logbox)
 
486
            pass
 
487
        self.topwidget = urwid.Pile(self.uilist)
 
488
    
 
489
    def log_message(self, message):
 
490
        timestamp = datetime.datetime.now().isoformat()
 
491
        self.log_message_raw(timestamp + u": " + message)
 
492
    
 
493
    def log_message_raw(self, markup):
 
494
        """Add a log message to the log buffer."""
 
495
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
496
        if (self.max_log_length
 
497
            and len(self.log) > self.max_log_length):
 
498
            del self.log[0:len(self.log)-self.max_log_length-1]
 
499
        self.logbox.set_focus(len(self.logbox.body.contents),
 
500
                              coming_from=u"above")
 
501
        self.refresh()
 
502
    
 
503
    def toggle_log_display(self):
 
504
        """Toggle visibility of the log buffer."""
 
505
        self.log_visible = not self.log_visible
 
506
        self.rebuild()
 
507
        self.log_message(u"Log visibility changed to: "
 
508
                         + unicode(self.log_visible))
 
509
    
 
510
    def change_log_display(self):
 
511
        """Change type of log display.
 
512
        Currently, this toggles wrapping of text lines."""
 
513
        if self.log_wrap == u"clip":
 
514
            self.log_wrap = u"any"
 
515
        else:
 
516
            self.log_wrap = u"clip"
 
517
        for textwidget in self.log:
 
518
            textwidget.set_wrap_mode(self.log_wrap)
 
519
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
520
    
301
521
    def find_and_remove_client(self, path, name):
302
522
        """Find an client from its object path and remove it.
303
523
        
310
530
            return
311
531
        self.remove_client(client, path)
312
532
    
313
 
    def add_new_client(self, path, properties):
 
533
    def add_new_client(self, path):
314
534
        client_proxy_object = self.bus.get_object(self.busname, path)
315
535
        self.add_client(MandosClientWidget(server_proxy_object
316
536
                                           =self.mandos_serv,
317
537
                                           proxy_object
318
538
                                           =client_proxy_object,
319
 
                                           properties=properties,
320
539
                                           update_hook
321
540
                                           =self.refresh,
322
541
                                           delete_hook
323
 
                                           =self.remove_client),
 
542
                                           =self.remove_client,
 
543
                                           logger
 
544
                                           =self.log_message),
324
545
                        path=path)
325
546
    
326
547
    def add_client(self, client, path=None):
328
549
        if path is None:
329
550
            path = client.proxy.object_path
330
551
        self.clients_dict[path] = client
331
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
552
        self.clients.sort(None, lambda c: c.properties[u"Name"])
332
553
        self.refresh()
333
554
    
334
555
    def remove_client(self, client, path=None):
336
557
        if path is None:
337
558
            path = client.proxy.object_path
338
559
        del self.clients_dict[path]
 
560
        if not self.clients_dict:
 
561
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
562
            # is completely emptied, we need to recreate it.
 
563
            self.clients = urwid.SimpleListWalker([])
 
564
            self.rebuild()
339
565
        self.refresh()
340
566
    
341
567
    def refresh(self):
360
586
    
361
587
    def process_input(self, source, condition):
362
588
        keys = self.screen.get_input()
363
 
        translations = { u"j": u"down",
364
 
                         u"k": u"up",
 
589
        translations = { u"ctrl n": u"down",      # Emacs
 
590
                         u"ctrl p": u"up",        # Emacs
 
591
                         u"ctrl v": u"page down", # Emacs
 
592
                         u"meta v": u"page up",   # Emacs
 
593
                         u" ": u"page down",      # less
 
594
                         u"f": u"page down",      # less
 
595
                         u"b": u"page up",        # less
 
596
                         u"j": u"down",           # vi
 
597
                         u"k": u"up",             # vi
365
598
                         }
366
599
        for key in keys:
367
600
            try:
375
608
            elif key == u"window resize":
376
609
                self.size = self.screen.get_cols_rows()
377
610
                self.refresh()
378
 
            elif key == " ":
379
 
                self.refresh()
 
611
            elif key == u"\f":  # Ctrl-L
 
612
                self.refresh()
 
613
            elif key == u"l" or key == u"D":
 
614
                self.toggle_log_display()
 
615
                self.refresh()
 
616
            elif key == u"w" or key == u"i":
 
617
                self.change_log_display()
 
618
                self.refresh()
 
619
            elif key == u"?" or key == u"f1" or key == u"esc":
 
620
                if not self.log_visible:
 
621
                    self.log_visible = True
 
622
                    self.rebuild()
 
623
                self.log_message_raw((u"bold",
 
624
                                      u"  ".
 
625
                                      join((u"q: Quit",
 
626
                                            u"?: Help",
 
627
                                            u"l: Log window toggle",
 
628
                                            u"TAB: Switch window",
 
629
                                            u"w: Wrap (log)"))))
 
630
                self.log_message_raw((u"bold",
 
631
                                      u"  "
 
632
                                      .join((u"Clients:",
 
633
                                             u"+: Enable",
 
634
                                             u"-: Disable",
 
635
                                             u"r: Remove",
 
636
                                             u"s: Start new checker",
 
637
                                             u"S: Stop checker",
 
638
                                             u"C: Checker OK",
 
639
                                             u"a: Approve",
 
640
                                             u"d: Deny"))))
 
641
                self.refresh()
 
642
            elif key == u"tab":
 
643
                if self.topwidget.get_focus() is self.logbox:
 
644
                    self.topwidget.set_focus(0)
 
645
                else:
 
646
                    self.topwidget.set_focus(self.logbox)
 
647
                self.refresh()
 
648
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
649
            #      or key == u">"):
 
650
            #    pass            # xxx end-of-buffer
 
651
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
652
            #      or key == u"<"):
 
653
            #    pass            # xxx beginning-of-buffer
 
654
            #elif key == u"ctrl e" or key == u"$":
 
655
            #    pass            # xxx move-end-of-line
 
656
            #elif key == u"ctrl a" or key == u"^":
 
657
            #    pass            # xxx move-beginning-of-line
 
658
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
659
            #    pass            # xxx left
 
660
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
661
            #    pass            # xxx right
 
662
            #elif key == u"a":
 
663
            #    pass            # scroll up log
 
664
            #elif key == u"z":
 
665
            #    pass            # scroll down log
380
666
            elif self.topwidget.selectable():
381
667
                self.topwidget.keypress(self.size, key)
382
668
                self.refresh()
385
671
ui = UserInterface()
386
672
try:
387
673
    ui.run()
388
 
except:
 
674
except KeyboardInterrupt:
 
675
    ui.screen.stop()
 
676
except Exception, e:
 
677
    ui.log_message(unicode(e))
389
678
    ui.screen.stop()
390
679
    raise