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  • Committer: Teddy Hogeborn
  • Date: 2014-07-14 21:41:08 UTC
  • Revision ID: teddy@recompile.se-20140714214108-awg7u6gaiy7d40dz
mandos-monitor: New "verbose" mode to see less important log messages.

* mandos-monitor (MandosClientWidget.__init__): Log client creation.
  (MandosClientWidget.checker_completed): Log a successful checker.
  (MandosClientWidget.checker_started): Log starting of a checker.
  (UserInterface.__init__): New optional "log_level" argument.
  (UserInterface.log_message, UserInterface.log_message_raw): Take
                                                              optional
                                                              "level"
                                                              arg.
  (UserInterface.toggle_log_display): Log visibility change.
  (UserInterface.change_log_display): Log wrap mode change.
  (UserInterface.process_input): Show new "v" key in help message and
                                 process "v" key if pressed.
* mandos-monitor.xml (KEYS): Document new "v" key.

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mandos-monitor
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# 
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# Mandos Monitor - Control and monitor the Mandos server
5
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# 
6
 
# Copyright © 2009-2011 Teddy Hogeborn
7
 
# Copyright © 2009-2011 Björn Påhlsson
 
6
# Copyright © 2009-2014 Teddy Hogeborn
 
7
# Copyright © 2009-2014 Björn Påhlsson
8
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# 
9
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# This program is free software: you can redistribute it and/or modify
10
10
# it under the terms of the GNU General Public License as published by
17
17
#     GNU General Public License for more details.
18
18
# 
19
19
# You should have received a copy of the GNU General Public License
20
 
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
21
22
# 
22
23
# Contact the authors at <mandos@recompile.se>.
23
24
# 
24
25
 
25
26
from __future__ import (division, absolute_import, print_function,
26
27
                        unicode_literals)
 
28
try:
 
29
    from future_builtins import *
 
30
except ImportError:
 
31
    pass
27
32
 
28
33
import sys
29
34
import os
30
 
import signal
31
35
 
32
36
import datetime
33
37
 
35
39
import urwid
36
40
 
37
41
from dbus.mainloop.glib import DBusGMainLoop
38
 
import gobject
 
42
try:
 
43
    import gobject
 
44
except ImportError:
 
45
    from gi.repository import GObject as gobject
39
46
 
40
47
import dbus
41
48
 
42
 
import UserList
43
 
 
44
49
import locale
45
50
 
 
51
if sys.version_info[0] == 2:
 
52
    str = unicode
 
53
 
46
54
locale.setlocale(locale.LC_ALL, '')
47
55
 
48
56
import logging
52
60
domain = 'se.recompile'
53
61
server_interface = domain + '.Mandos'
54
62
client_interface = domain + '.Mandos.Client'
55
 
version = "1.4.1"
56
 
 
57
 
# Always run in monochrome mode
58
 
urwid.curses_display.curses.has_colors = lambda : False
59
 
 
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)
 
63
version = "1.6.6"
64
64
 
65
65
def isoformat_to_datetime(iso):
66
66
    "Parse an ISO 8601 date string to a datetime.datetime()"
83
83
    properties and calls a hook function when any of them are
84
84
    changed.
85
85
    """
86
 
    def __init__(self, proxy_object=None, *args, **kwargs):
 
86
    def __init__(self, proxy_object=None, properties=None, **kwargs):
87
87
        self.proxy = proxy_object # Mandos Client proxy object
88
 
        
89
 
        self.properties = dict()
 
88
        self.properties = dict() if properties is None else properties
90
89
        self.property_changed_match = (
91
90
            self.proxy.connect_to_signal("PropertyChanged",
92
 
                                         self.property_changed,
 
91
                                         self._property_changed,
93
92
                                         client_interface,
94
93
                                         byte_arrays=True))
95
94
        
96
 
        self.properties.update(
97
 
            self.proxy.GetAll(client_interface,
98
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
99
 
 
100
 
        #XXX This breaks good super behaviour
101
 
#        super(MandosClientPropertyCache, self).__init__(
102
 
#            *args, **kwargs)
 
95
        if properties is None:
 
96
            self.properties.update(
 
97
                self.proxy.GetAll(client_interface,
 
98
                                  dbus_interface
 
99
                                  = dbus.PROPERTIES_IFACE))
 
100
        
 
101
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
102
    
 
103
    def _property_changed(self, property, value):
 
104
        """Helper which takes positional arguments"""
 
105
        return self.property_changed(property=property, value=value)
103
106
    
104
107
    def property_changed(self, property=None, value=None):
105
108
        """This is called whenever we get a PropertyChanged signal
108
111
        # Update properties dict with new value
109
112
        self.properties[property] = value
110
113
    
111
 
    def delete(self, *args, **kwargs):
 
114
    def delete(self):
112
115
        self.property_changed_match.remove()
113
 
        super(MandosClientPropertyCache, self).__init__(
114
 
            *args, **kwargs)
115
116
 
116
117
 
117
118
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
119
120
    """
120
121
    
121
122
    def __init__(self, server_proxy_object=None, update_hook=None,
122
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
123
                 delete_hook=None, logger=None, **kwargs):
123
124
        # Called on update
124
125
        self.update_hook = update_hook
125
126
        # Called on delete
130
131
        self.logger = logger
131
132
        
132
133
        self._update_timer_callback_tag = None
133
 
        self._update_timer_callback_lock = 0
134
 
        self.last_checker_failed = False
135
134
        
136
135
        # The widget shown normally
137
136
        self._text_widget = urwid.Text("")
138
137
        # The widget shown when we have focus
139
138
        self._focus_text_widget = urwid.Text("")
140
 
        super(MandosClientWidget, self).__init__(
141
 
            update_hook=update_hook, delete_hook=delete_hook,
142
 
            *args, **kwargs)
 
139
        super(MandosClientWidget, self).__init__(**kwargs)
143
140
        self.update()
144
141
        self.opened = False
145
142
        
146
 
        last_checked_ok = isoformat_to_datetime(self.properties
147
 
                                                ["LastCheckedOK"])
148
 
        if last_checked_ok is None:
149
 
            self.last_checker_failed = True
150
 
        else:
151
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
152
 
                                         - last_checked_ok)
153
 
                                        > datetime.timedelta
154
 
                                        (milliseconds=
155
 
                                         self.properties
156
 
                                         ["Interval"]))
157
 
        
158
 
        if self.last_checker_failed:
159
 
            self.using_timer(True)
160
 
        
161
 
        if self.need_approval:
162
 
            self.using_timer(True)
163
 
        
164
143
        self.match_objects = (
165
144
            self.proxy.connect_to_signal("CheckerCompleted",
166
145
                                         self.checker_completed,
182
161
                                         self.rejected,
183
162
                                         client_interface,
184
163
                                         byte_arrays=True))
185
 
        #self.logger('Created client %s' % (self.properties["Name"]))
 
164
        self.logger('Created client {0}'
 
165
                    .format(self.properties["Name"]), level=0)
186
166
    
187
 
    def property_changed(self, property=None, value=None):
188
 
        super(self, MandosClientWidget).property_changed(property,
189
 
                                                         value)
190
 
        if property == "ApprovalPending":
191
 
            using_timer(bool(value))
192
 
        
193
167
    def using_timer(self, flag):
194
168
        """Call this method with True or False when timer should be
195
169
        activated or deactivated.
196
170
        """
197
 
        old = self._update_timer_callback_lock
198
 
        if flag:
199
 
            self._update_timer_callback_lock += 1
200
 
        else:
201
 
            self._update_timer_callback_lock -= 1
202
 
        if old == 0 and self._update_timer_callback_lock:
 
171
        if flag and self._update_timer_callback_tag is None:
203
172
            # Will update the shown timer value every second
204
173
            self._update_timer_callback_tag = (gobject.timeout_add
205
174
                                               (1000,
206
175
                                                self.update_timer))
207
 
        elif old and self._update_timer_callback_lock == 0:
 
176
        elif not (flag or self._update_timer_callback_tag is None):
208
177
            gobject.source_remove(self._update_timer_callback_tag)
209
178
            self._update_timer_callback_tag = None
210
179
    
211
180
    def checker_completed(self, exitstatus, condition, command):
212
181
        if exitstatus == 0:
213
 
            if self.last_checker_failed:
214
 
                self.last_checker_failed = False
215
 
                self.using_timer(False)
216
 
            #self.logger('Checker for client %s (command "%s")'
217
 
            #            ' was successful'
218
 
            #            % (self.properties["Name"], command))
 
182
            self.logger('Checker for client {0} (command "{1}")'
 
183
                        ' succeeded'.format(self.properties["Name"],
 
184
                                            command), level=0)
219
185
            self.update()
220
186
            return
221
187
        # Checker failed
222
 
        if not self.last_checker_failed:
223
 
            self.last_checker_failed = True
224
 
            self.using_timer(True)
225
188
        if os.WIFEXITED(condition):
226
 
            self.logger('Checker for client %s (command "%s")'
227
 
                        ' failed with exit code %s'
228
 
                        % (self.properties["Name"], command,
229
 
                           os.WEXITSTATUS(condition)))
 
189
            self.logger('Checker for client {0} (command "{1}")'
 
190
                        ' failed with exit code {2}'
 
191
                        .format(self.properties["Name"], command,
 
192
                                os.WEXITSTATUS(condition)))
230
193
        elif os.WIFSIGNALED(condition):
231
 
            self.logger('Checker for client %s (command "%s")'
232
 
                        ' was killed by signal %s'
233
 
                        % (self.properties["Name"], command,
234
 
                           os.WTERMSIG(condition)))
 
194
            self.logger('Checker for client {0} (command "{1}") was'
 
195
                        ' killed by signal {2}'
 
196
                        .format(self.properties["Name"], command,
 
197
                                os.WTERMSIG(condition)))
235
198
        elif os.WCOREDUMP(condition):
236
 
            self.logger('Checker for client %s (command "%s")'
 
199
            self.logger('Checker for client {0} (command "{1}")'
237
200
                        ' dumped core'
238
 
                        % (self.properties["Name"], command))
 
201
                        .format(self.properties["Name"], command))
239
202
        else:
240
 
            self.logger('Checker for client %s completed'
241
 
                        ' mysteriously')
 
203
            self.logger('Checker for client {0} completed'
 
204
                        ' mysteriously'
 
205
                        .format(self.properties["Name"]))
242
206
        self.update()
243
207
    
244
208
    def checker_started(self, command):
245
 
        #self.logger('Client %s started checker "%s"'
246
 
        #            % (self.properties["Name"], unicode(command)))
247
 
        pass
 
209
        """Server signals that a checker started."""
 
210
        self.logger('Client {0} started checker "{1}"'
 
211
                    .format(self.properties["Name"],
 
212
                            command), level=0)
248
213
    
249
214
    def got_secret(self):
250
 
        self.last_checker_failed = False
251
 
        self.logger('Client %s received its secret'
252
 
                    % self.properties["Name"])
 
215
        self.logger('Client {0} received its secret'
 
216
                    .format(self.properties["Name"]))
253
217
    
254
218
    def need_approval(self, timeout, default):
255
219
        if not default:
256
 
            message = 'Client %s needs approval within %s seconds'
 
220
            message = 'Client {0} needs approval within {1} seconds'
257
221
        else:
258
 
            message = 'Client %s will get its secret in %s seconds'
259
 
        self.logger(message
260
 
                    % (self.properties["Name"], timeout/1000))
261
 
        self.using_timer(True)
 
222
            message = 'Client {0} will get its secret in {1} seconds'
 
223
        self.logger(message.format(self.properties["Name"],
 
224
                                   timeout/1000))
262
225
    
263
226
    def rejected(self, reason):
264
 
        self.logger('Client %s was rejected; reason: %s'
265
 
                    % (self.properties["Name"], reason))
 
227
        self.logger('Client {0} was rejected; reason: {1}'
 
228
                    .format(self.properties["Name"], reason))
266
229
    
267
230
    def selectable(self):
268
231
        """Make this a "selectable" widget.
290
253
                          "bold-underline-blink":
291
254
                              "bold-underline-blink-standout",
292
255
                          }
293
 
 
 
256
        
294
257
        # Rebuild focus and non-focus widgets using current properties
295
 
 
 
258
        
296
259
        # Base part of a client. Name!
297
 
        base = ('%(name)s: '
298
 
                      % {"name": self.properties["Name"]})
 
260
        base = '{name}: '.format(name=self.properties["Name"])
299
261
        if not self.properties["Enabled"]:
300
262
            message = "DISABLED"
 
263
            self.using_timer(False)
301
264
        elif self.properties["ApprovalPending"]:
302
265
            timeout = datetime.timedelta(milliseconds
303
266
                                         = self.properties
305
268
            last_approval_request = isoformat_to_datetime(
306
269
                self.properties["LastApprovalRequest"])
307
270
            if last_approval_request is not None:
308
 
                timer = timeout - (datetime.datetime.utcnow()
309
 
                                   - last_approval_request)
 
271
                timer = max(timeout - (datetime.datetime.utcnow()
 
272
                                       - last_approval_request),
 
273
                            datetime.timedelta())
310
274
            else:
311
275
                timer = datetime.timedelta()
312
276
            if self.properties["ApprovedByDefault"]:
313
 
                message = "Approval in %s. (d)eny?"
 
277
                message = "Approval in {0}. (d)eny?"
314
278
            else:
315
 
                message = "Denial in %s. (a)pprove?"
316
 
            message = message % unicode(timer).rsplit(".", 1)[0]
317
 
        elif self.last_checker_failed:
318
 
            # When checker has failed, print a timer until client expires
 
279
                message = "Denial in {0}. (a)pprove?"
 
280
            message = message.format(str(timer).rsplit(".", 1)[0])
 
281
            self.using_timer(True)
 
282
        elif self.properties["LastCheckerStatus"] != 0:
 
283
            # When checker has failed, show timer until client expires
319
284
            expires = self.properties["Expires"]
320
285
            if expires == "":
321
286
                timer = datetime.timedelta(0)
322
287
            else:
323
 
                expires = datetime.datetime.strptime(expires,
324
 
                                                     '%Y-%m-%dT%H:%M:%S.%f')
325
 
                timer = expires - datetime.datetime.utcnow()
 
288
                expires = (datetime.datetime.strptime
 
289
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
290
                timer = max(expires - datetime.datetime.utcnow(),
 
291
                            datetime.timedelta())
326
292
            message = ('A checker has failed! Time until client'
327
 
                       ' gets disabled: %s'
328
 
                           % unicode(timer).rsplit(".", 1)[0])
 
293
                       ' gets disabled: {0}'
 
294
                       .format(str(timer).rsplit(".", 1)[0]))
 
295
            self.using_timer(True)
329
296
        else:
330
297
            message = "enabled"
331
 
        self._text = "%s%s" % (base, message)
332
 
            
 
298
            self.using_timer(False)
 
299
        self._text = "{0}{1}".format(base, message)
 
300
        
333
301
        if not urwid.supports_unicode():
334
302
            self._text = self._text.encode("ascii", "replace")
335
303
        textlist = [("normal", self._text)]
352
320
        self.update()
353
321
        return True             # Keep calling this
354
322
    
355
 
    def delete(self, *args, **kwargs):
 
323
    def delete(self, **kwargs):
356
324
        if self._update_timer_callback_tag is not None:
357
325
            gobject.source_remove(self._update_timer_callback_tag)
358
326
            self._update_timer_callback_tag = None
361
329
        self.match_objects = ()
362
330
        if self.delete_hook is not None:
363
331
            self.delete_hook(self)
364
 
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
332
        return super(MandosClientWidget, self).delete(**kwargs)
365
333
    
366
334
    def render(self, maxcolrow, focus=False):
367
335
        """Render differently if we have focus.
409
377
        else:
410
378
            return key
411
379
    
412
 
    def property_changed(self, property=None, value=None,
413
 
                         *args, **kwargs):
 
380
    def property_changed(self, property=None, **kwargs):
414
381
        """Call self.update() if old value is not new value.
415
382
        This overrides the method from MandosClientPropertyCache"""
416
 
        property_name = unicode(property)
 
383
        property_name = str(property)
417
384
        old_value = self.properties.get(property_name)
418
385
        super(MandosClientWidget, self).property_changed(
419
 
            property=property, value=value, *args, **kwargs)
 
386
            property=property, **kwargs)
420
387
        if self.properties.get(property_name) != old_value:
421
388
            self.update()
422
389
 
426
393
    "down" key presses, thus not allowing any containing widgets to
427
394
    use them as an excuse to shift focus away from this widget.
428
395
    """
429
 
    def keypress(self, maxcolrow, key):
430
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
396
    def keypress(self, *args, **kwargs):
 
397
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
431
398
        if ret in ("up", "down"):
432
399
            return
433
400
        return ret
437
404
    """This is the entire user interface - the whole screen
438
405
    with boxes, lists of client widgets, etc.
439
406
    """
440
 
    def __init__(self, max_log_length=1000):
 
407
    def __init__(self, max_log_length=1000, log_level=1):
441
408
        DBusGMainLoop(set_as_default=True)
442
409
        
443
410
        self.screen = urwid.curses_display.Screen()
446
413
                ("normal",
447
414
                 "default", "default", None),
448
415
                ("bold",
449
 
                 "default", "default", "bold"),
 
416
                 "bold", "default", "bold"),
450
417
                ("underline-blink",
451
 
                 "default", "default", "underline"),
 
418
                 "underline,blink", "default", "underline,blink"),
452
419
                ("standout",
453
 
                 "default", "default", "standout"),
 
420
                 "standout", "default", "standout"),
454
421
                ("bold-underline-blink",
455
 
                 "default", "default", ("bold", "underline")),
 
422
                 "bold,underline,blink", "default", "bold,underline,blink"),
456
423
                ("bold-standout",
457
 
                 "default", "default", ("bold", "standout")),
 
424
                 "bold,standout", "default", "bold,standout"),
458
425
                ("underline-blink-standout",
459
 
                 "default", "default", ("underline", "standout")),
 
426
                 "underline,blink,standout", "default",
 
427
                 "underline,blink,standout"),
460
428
                ("bold-underline-blink-standout",
461
 
                 "default", "default", ("bold", "underline",
462
 
                                          "standout")),
 
429
                 "bold,underline,blink,standout", "default",
 
430
                 "bold,underline,blink,standout"),
463
431
                ))
464
432
        
465
433
        if urwid.supports_unicode():
480
448
        self.log = []
481
449
        self.max_log_length = max_log_length
482
450
        
 
451
        self.log_level = log_level
 
452
        
483
453
        # We keep a reference to the log widget so we can remove it
484
454
        # from the ListWalker without it getting destroyed
485
455
        self.logbox = ConstrainedListBox(self.log)
497
467
        
498
468
        self.busname = domain + '.Mandos'
499
469
        self.main_loop = gobject.MainLoop()
500
 
        self.bus = dbus.SystemBus()
501
 
        mandos_dbus_objc = self.bus.get_object(
502
 
            self.busname, "/", follow_name_owner_changes=True)
503
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
504
 
                                          dbus_interface
505
 
                                          = server_interface)
506
 
        try:
507
 
            mandos_clients = (self.mandos_serv
508
 
                              .GetAllClientsWithProperties())
509
 
        except dbus.exceptions.DBusException:
510
 
            mandos_clients = dbus.Dictionary()
511
 
        
512
 
        (self.mandos_serv
513
 
         .connect_to_signal("ClientRemoved",
514
 
                            self.find_and_remove_client,
515
 
                            dbus_interface=server_interface,
516
 
                            byte_arrays=True))
517
 
        (self.mandos_serv
518
 
         .connect_to_signal("ClientAdded",
519
 
                            self.add_new_client,
520
 
                            dbus_interface=server_interface,
521
 
                            byte_arrays=True))
522
 
        (self.mandos_serv
523
 
         .connect_to_signal("ClientNotFound",
524
 
                            self.client_not_found,
525
 
                            dbus_interface=server_interface,
526
 
                            byte_arrays=True))
527
 
        for path, client in mandos_clients.iteritems():
528
 
            client_proxy_object = self.bus.get_object(self.busname,
529
 
                                                      path)
530
 
            self.add_client(MandosClientWidget(server_proxy_object
531
 
                                               =self.mandos_serv,
532
 
                                               proxy_object
533
 
                                               =client_proxy_object,
534
 
                                               properties=client,
535
 
                                               update_hook
536
 
                                               =self.refresh,
537
 
                                               delete_hook
538
 
                                               =self.remove_client,
539
 
                                               logger
540
 
                                               =self.log_message),
541
 
                            path=path)
542
470
    
543
471
    def client_not_found(self, fingerprint, address):
544
 
        self.log_message(("Client with address %s and fingerprint %s"
545
 
                          " could not be found" % (address,
546
 
                                                    fingerprint)))
 
472
        self.log_message("Client with address {0} and fingerprint"
 
473
                         " {1} could not be found"
 
474
                         .format(address, fingerprint))
547
475
    
548
476
    def rebuild(self):
549
477
        """This rebuilds the User Interface.
559
487
                                                     self.divider)))
560
488
        if self.log_visible:
561
489
            self.uilist.append(self.logbox)
562
 
            pass
563
490
        self.topwidget = urwid.Pile(self.uilist)
564
491
    
565
 
    def log_message(self, message):
 
492
    def log_message(self, message, level=1):
 
493
        """Log message formatted with timestamp"""
 
494
        if level < self.log_level:
 
495
            return
566
496
        timestamp = datetime.datetime.now().isoformat()
567
 
        self.log_message_raw(timestamp + ": " + message)
 
497
        self.log_message_raw("{0}: {1}".format(timestamp, message),
 
498
                             level=level)
568
499
    
569
 
    def log_message_raw(self, markup):
 
500
    def log_message_raw(self, markup, level=1):
570
501
        """Add a log message to the log buffer."""
 
502
        if level < self.log_level:
 
503
            return
571
504
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
572
505
        if (self.max_log_length
573
506
            and len(self.log) > self.max_log_length):
580
513
        """Toggle visibility of the log buffer."""
581
514
        self.log_visible = not self.log_visible
582
515
        self.rebuild()
583
 
        #self.log_message("Log visibility changed to: "
584
 
        #                 + unicode(self.log_visible))
 
516
        self.log_message("Log visibility changed to: {0}"
 
517
                         .format(self.log_visible), level=0)
585
518
    
586
519
    def change_log_display(self):
587
520
        """Change type of log display.
592
525
            self.log_wrap = "clip"
593
526
        for textwidget in self.log:
594
527
            textwidget.set_wrap_mode(self.log_wrap)
595
 
        #self.log_message("Wrap mode: " + self.log_wrap)
 
528
        self.log_message("Wrap mode: {0}".format(self.log_wrap),
 
529
                         level=0)
596
530
    
597
531
    def find_and_remove_client(self, path, name):
598
532
        """Find a client by its object path and remove it.
603
537
            client = self.clients_dict[path]
604
538
        except KeyError:
605
539
            # not found?
606
 
            self.log_message("Unknown client %r (%r) removed", name,
607
 
                             path)
 
540
            self.log_message("Unknown client {0!r} ({1!r}) removed"
 
541
                             .format(name, path))
608
542
            return
609
543
        client.delete()
610
544
    
627
561
        if path is None:
628
562
            path = client.proxy.object_path
629
563
        self.clients_dict[path] = client
630
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
564
        self.clients.sort(key=lambda c: c.properties["Name"])
631
565
        self.refresh()
632
566
    
633
567
    def remove_client(self, client, path=None):
635
569
        if path is None:
636
570
            path = client.proxy.object_path
637
571
        del self.clients_dict[path]
638
 
        if not self.clients_dict:
639
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
640
 
            # is completely emptied, we need to recreate it.
641
 
            self.clients = urwid.SimpleListWalker([])
642
 
            self.rebuild()
643
572
        self.refresh()
644
573
    
645
574
    def refresh(self):
649
578
    
650
579
    def run(self):
651
580
        """Start the main loop and exit when it's done."""
 
581
        self.bus = dbus.SystemBus()
 
582
        mandos_dbus_objc = self.bus.get_object(
 
583
            self.busname, "/", follow_name_owner_changes=True)
 
584
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
585
                                          dbus_interface
 
586
                                          = server_interface)
 
587
        try:
 
588
            mandos_clients = (self.mandos_serv
 
589
                              .GetAllClientsWithProperties())
 
590
            if not mandos_clients:
 
591
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
592
        except dbus.exceptions.DBusException:
 
593
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
594
            mandos_clients = dbus.Dictionary()
 
595
        
 
596
        (self.mandos_serv
 
597
         .connect_to_signal("ClientRemoved",
 
598
                            self.find_and_remove_client,
 
599
                            dbus_interface=server_interface,
 
600
                            byte_arrays=True))
 
601
        (self.mandos_serv
 
602
         .connect_to_signal("ClientAdded",
 
603
                            self.add_new_client,
 
604
                            dbus_interface=server_interface,
 
605
                            byte_arrays=True))
 
606
        (self.mandos_serv
 
607
         .connect_to_signal("ClientNotFound",
 
608
                            self.client_not_found,
 
609
                            dbus_interface=server_interface,
 
610
                            byte_arrays=True))
 
611
        for path, client in mandos_clients.items():
 
612
            client_proxy_object = self.bus.get_object(self.busname,
 
613
                                                      path)
 
614
            self.add_client(MandosClientWidget(server_proxy_object
 
615
                                               =self.mandos_serv,
 
616
                                               proxy_object
 
617
                                               =client_proxy_object,
 
618
                                               properties=client,
 
619
                                               update_hook
 
620
                                               =self.refresh,
 
621
                                               delete_hook
 
622
                                               =self.remove_client,
 
623
                                               logger
 
624
                                               =self.log_message),
 
625
                            path=path)
 
626
        
652
627
        self.refresh()
653
628
        self._input_callback_tag = (gobject.io_add_watch
654
629
                                    (sys.stdin.fileno(),
704
679
                                            "?: Help",
705
680
                                            "l: Log window toggle",
706
681
                                            "TAB: Switch window",
707
 
                                            "w: Wrap (log)"))))
 
682
                                            "w: Wrap (log lines)",
 
683
                                            "v: Toggle verbose log",
 
684
                                            ))))
708
685
                self.log_message_raw(("bold",
709
686
                                      "  "
710
687
                                      .join(("Clients:",
723
700
                else:
724
701
                    self.topwidget.set_focus(self.logbox)
725
702
                self.refresh()
 
703
            elif key == "v":
 
704
                if self.log_level == 0:
 
705
                    self.log_level = 1
 
706
                    self.log_message("Verbose mode: Off")
 
707
                else:
 
708
                    self.log_level = 0
 
709
                    self.log_message("Verbose mode: On")
726
710
            #elif (key == "end" or key == "meta >" or key == "G"
727
711
            #      or key == ">"):
728
712
            #    pass            # xxx end-of-buffer
751
735
    ui.run()
752
736
except KeyboardInterrupt:
753
737
    ui.screen.stop()
754
 
except Exception, e:
755
 
    ui.log_message(unicode(e))
 
738
except Exception as e:
 
739
    ui.log_message(str(e))
756
740
    ui.screen.stop()
757
741
    raise