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  • Committer: Teddy Hogeborn
  • Date: 2015-07-12 01:57:54 UTC
  • Revision ID: teddy@recompile.se-20150712015754-1lq7u2ejo7fdyfvi
* debian/mandos.prerm: Don't run init script, use only invoke-rc.d.

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mandos-monitor
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# 
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# Mandos Monitor - Control and monitor the Mandos server
5
5
# 
6
 
# Copyright © 2009-2012 Teddy Hogeborn
7
 
# Copyright © 2009-2012 Björn Påhlsson
 
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# Copyright © 2009-2015 Teddy Hogeborn
 
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# Copyright © 2009-2015 Björn Påhlsson
8
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# 
9
9
# 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.major == 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 = "1.5.0"
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 = "1.6.9"
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
 
            self.proxy.connect_to_signal("PropertyChanged",
92
 
                                         self.property_changed,
93
 
                                         client_interface,
 
90
            self.proxy.connect_to_signal("PropertiesChanged",
 
91
                                         self.properties_changed,
 
92
                                         dbus.PROPERTIES_IFACE,
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)
103
102
    
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.
 
103
    def properties_changed(self, interface, properties, invalidated):
 
104
        """This is called whenever we get a PropertiesChanged signal
 
105
        It updates the changed properties in the "properties" dict.
107
106
        """
108
107
        # Update properties dict with new value
109
 
        self.properties[property] = value
 
108
        self.properties.update(properties)
110
109
    
111
 
    def delete(self, *args, **kwargs):
 
110
    def delete(self):
112
111
        self.property_changed_match.remove()
113
 
        super(MandosClientPropertyCache, self).__init__(
114
 
            *args, **kwargs)
115
112
 
116
113
 
117
114
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
119
116
    """
120
117
    
121
118
    def __init__(self, server_proxy_object=None, update_hook=None,
122
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
119
                 delete_hook=None, logger=None, **kwargs):
123
120
        # Called on update
124
121
        self.update_hook = update_hook
125
122
        # Called on delete
130
127
        self.logger = logger
131
128
        
132
129
        self._update_timer_callback_tag = None
133
 
        self._update_timer_callback_lock = 0
134
 
        self.last_checker_failed = False
135
130
        
136
131
        # The widget shown normally
137
132
        self._text_widget = urwid.Text("")
138
133
        # The widget shown when we have focus
139
134
        self._focus_text_widget = urwid.Text("")
140
 
        super(MandosClientWidget, self).__init__(
141
 
            update_hook=update_hook, delete_hook=delete_hook,
142
 
            *args, **kwargs)
 
135
        super(MandosClientWidget, self).__init__(**kwargs)
143
136
        self.update()
144
137
        self.opened = False
145
138
        
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
139
        self.match_objects = (
165
140
            self.proxy.connect_to_signal("CheckerCompleted",
166
141
                                         self.checker_completed,
182
157
                                         self.rejected,
183
158
                                         client_interface,
184
159
                                         byte_arrays=True))
185
 
        #self.logger('Created client %s' % (self.properties["Name"]))
 
160
        self.logger('Created client {}'
 
161
                    .format(self.properties["Name"]), level=0)
186
162
    
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
163
    def using_timer(self, flag):
194
164
        """Call this method with True or False when timer should be
195
165
        activated or deactivated.
196
166
        """
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:
 
167
        if flag and self._update_timer_callback_tag is None:
203
168
            # Will update the shown timer value every second
204
169
            self._update_timer_callback_tag = (gobject.timeout_add
205
170
                                               (1000,
206
171
                                                self.update_timer))
207
 
        elif old and self._update_timer_callback_lock == 0:
 
172
        elif not (flag or self._update_timer_callback_tag is None):
208
173
            gobject.source_remove(self._update_timer_callback_tag)
209
174
            self._update_timer_callback_tag = None
210
175
    
211
 
    def checker_completed(self, exitstatus, condition, command):
 
176
    def checker_completed(self, exitstatus, signal, command):
212
177
        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))
 
178
            self.logger('Checker for client {} (command "{}")'
 
179
                        ' succeeded'.format(self.properties["Name"],
 
180
                                            command), level=0)
219
181
            self.update()
220
182
            return
221
183
        # Checker failed
222
 
        if not self.last_checker_failed:
223
 
            self.last_checker_failed = True
224
 
            self.using_timer(True)
225
 
        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)))
230
 
        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)))
235
 
        elif os.WCOREDUMP(condition):
236
 
            self.logger('Checker for client %s (command "%s")'
237
 
                        ' dumped core'
238
 
                        % (self.properties["Name"], command))
 
184
        if exitstatus >= 0:
 
185
            self.logger('Checker for client {} (command "{}") failed'
 
186
                        ' with exit code {}'
 
187
                        .format(self.properties["Name"], command,
 
188
                                exitstatus))
 
189
        elif signal != 0:
 
190
            self.logger('Checker for client {} (command "{}") was'
 
191
                        ' killed by signal {}'
 
192
                        .format(self.properties["Name"], command,
 
193
                                signal))
239
194
        else:
240
 
            self.logger('Checker for client %s completed'
241
 
                        ' mysteriously')
 
195
            self.logger('Checker for client {} completed'
 
196
                        ' mysteriously'
 
197
                        .format(self.properties["Name"]))
242
198
        self.update()
243
199
    
244
200
    def checker_started(self, command):
245
 
        """Server signals that a checker started. This could be useful
246
 
           to log in the future. """
247
 
        #self.logger('Client %s started checker "%s"'
248
 
        #            % (self.properties["Name"], unicode(command)))
249
 
        pass
 
201
        """Server signals that a checker started."""
 
202
        self.logger('Client {} started checker "{}"'
 
203
                    .format(self.properties["Name"],
 
204
                            command), level=0)
250
205
    
251
206
    def got_secret(self):
252
 
        self.last_checker_failed = False
253
 
        self.logger('Client %s received its secret'
254
 
                    % self.properties["Name"])
 
207
        self.logger('Client {} received its secret'
 
208
                    .format(self.properties["Name"]))
255
209
    
256
210
    def need_approval(self, timeout, default):
257
211
        if not default:
258
 
            message = 'Client %s needs approval within %s seconds'
 
212
            message = 'Client {} needs approval within {} seconds'
259
213
        else:
260
 
            message = 'Client %s will get its secret in %s seconds'
261
 
        self.logger(message
262
 
                    % (self.properties["Name"], timeout/1000))
263
 
        self.using_timer(True)
 
214
            message = 'Client {} will get its secret in {} seconds'
 
215
        self.logger(message.format(self.properties["Name"],
 
216
                                   timeout/1000))
264
217
    
265
218
    def rejected(self, reason):
266
 
        self.logger('Client %s was rejected; reason: %s'
267
 
                    % (self.properties["Name"], reason))
 
219
        self.logger('Client {} was rejected; reason: {}'
 
220
                    .format(self.properties["Name"], reason))
268
221
    
269
222
    def selectable(self):
270
223
        """Make this a "selectable" widget.
292
245
                          "bold-underline-blink":
293
246
                              "bold-underline-blink-standout",
294
247
                          }
295
 
 
 
248
        
296
249
        # Rebuild focus and non-focus widgets using current properties
297
 
 
 
250
        
298
251
        # Base part of a client. Name!
299
 
        base = ('%(name)s: '
300
 
                      % {"name": self.properties["Name"]})
 
252
        base = '{name}: '.format(name=self.properties["Name"])
301
253
        if not self.properties["Enabled"]:
302
254
            message = "DISABLED"
 
255
            self.using_timer(False)
303
256
        elif self.properties["ApprovalPending"]:
304
257
            timeout = datetime.timedelta(milliseconds
305
258
                                         = self.properties
307
260
            last_approval_request = isoformat_to_datetime(
308
261
                self.properties["LastApprovalRequest"])
309
262
            if last_approval_request is not None:
310
 
                timer = timeout - (datetime.datetime.utcnow()
311
 
                                   - last_approval_request)
 
263
                timer = max(timeout - (datetime.datetime.utcnow()
 
264
                                       - last_approval_request),
 
265
                            datetime.timedelta())
312
266
            else:
313
267
                timer = datetime.timedelta()
314
268
            if self.properties["ApprovedByDefault"]:
315
 
                message = "Approval in %s. (d)eny?"
 
269
                message = "Approval in {}. (d)eny?"
316
270
            else:
317
 
                message = "Denial in %s. (a)pprove?"
318
 
            message = message % unicode(timer).rsplit(".", 1)[0]
319
 
        elif self.last_checker_failed:
320
 
            # When checker has failed, print a timer until client expires
 
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
321
276
            expires = self.properties["Expires"]
322
277
            if expires == "":
323
278
                timer = datetime.timedelta(0)
324
279
            else:
325
 
                expires = datetime.datetime.strptime(expires,
326
 
                                                     '%Y-%m-%dT%H:%M:%S.%f')
327
 
                timer = expires - datetime.datetime.utcnow()
 
280
                expires = (datetime.datetime.strptime
 
281
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
282
                timer = max(expires - datetime.datetime.utcnow(),
 
283
                            datetime.timedelta())
328
284
            message = ('A checker has failed! Time until client'
329
 
                       ' gets disabled: %s'
330
 
                           % unicode(timer).rsplit(".", 1)[0])
 
285
                       ' gets disabled: {}'
 
286
                       .format(str(timer).rsplit(".", 1)[0]))
 
287
            self.using_timer(True)
331
288
        else:
332
289
            message = "enabled"
333
 
        self._text = "%s%s" % (base, message)
334
 
            
 
290
            self.using_timer(False)
 
291
        self._text = "{}{}".format(base, message)
 
292
        
335
293
        if not urwid.supports_unicode():
336
294
            self._text = self._text.encode("ascii", "replace")
337
295
        textlist = [("normal", self._text)]
354
312
        self.update()
355
313
        return True             # Keep calling this
356
314
    
357
 
    def delete(self, *args, **kwargs):
 
315
    def delete(self, **kwargs):
358
316
        if self._update_timer_callback_tag is not None:
359
317
            gobject.source_remove(self._update_timer_callback_tag)
360
318
            self._update_timer_callback_tag = None
363
321
        self.match_objects = ()
364
322
        if self.delete_hook is not None:
365
323
            self.delete_hook(self)
366
 
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
324
        return super(MandosClientWidget, self).delete(**kwargs)
367
325
    
368
326
    def render(self, maxcolrow, focus=False):
369
327
        """Render differently if we have focus.
411
369
        else:
412
370
            return key
413
371
    
414
 
    def property_changed(self, property=None, value=None,
415
 
                         *args, **kwargs):
416
 
        """Call self.update() if old value is not new value.
 
372
    def properties_changed(self, interface, properties, invalidated):
 
373
        """Call self.update() if any properties changed.
417
374
        This overrides the method from MandosClientPropertyCache"""
418
 
        property_name = unicode(property)
419
 
        old_value = self.properties.get(property_name)
420
 
        super(MandosClientWidget, self).property_changed(
421
 
            property=property, value=value, *args, **kwargs)
422
 
        if self.properties.get(property_name) != old_value:
 
375
        old_values = { key: self.properties.get(key)
 
376
                       for key in properties.keys() }
 
377
        super(MandosClientWidget, self).properties_changed(
 
378
            interface, properties, invalidated)
 
379
        if any(old_values[key] != self.properties.get(key)
 
380
               for key in old_values):
423
381
            self.update()
424
382
 
425
383
 
428
386
    "down" key presses, thus not allowing any containing widgets to
429
387
    use them as an excuse to shift focus away from this widget.
430
388
    """
431
 
    def keypress(self, maxcolrow, key):
432
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
389
    def keypress(self, *args, **kwargs):
 
390
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
433
391
        if ret in ("up", "down"):
434
392
            return
435
393
        return ret
439
397
    """This is the entire user interface - the whole screen
440
398
    with boxes, lists of client widgets, etc.
441
399
    """
442
 
    def __init__(self, max_log_length=1000):
 
400
    def __init__(self, max_log_length=1000, log_level=1):
443
401
        DBusGMainLoop(set_as_default=True)
444
402
        
445
403
        self.screen = urwid.curses_display.Screen()
448
406
                ("normal",
449
407
                 "default", "default", None),
450
408
                ("bold",
451
 
                 "default", "default", "bold"),
 
409
                 "bold", "default", "bold"),
452
410
                ("underline-blink",
453
 
                 "default", "default", "underline"),
 
411
                 "underline,blink", "default", "underline,blink"),
454
412
                ("standout",
455
 
                 "default", "default", "standout"),
 
413
                 "standout", "default", "standout"),
456
414
                ("bold-underline-blink",
457
 
                 "default", "default", ("bold", "underline")),
 
415
                 "bold,underline,blink", "default", "bold,underline,blink"),
458
416
                ("bold-standout",
459
 
                 "default", "default", ("bold", "standout")),
 
417
                 "bold,standout", "default", "bold,standout"),
460
418
                ("underline-blink-standout",
461
 
                 "default", "default", ("underline", "standout")),
 
419
                 "underline,blink,standout", "default",
 
420
                 "underline,blink,standout"),
462
421
                ("bold-underline-blink-standout",
463
 
                 "default", "default", ("bold", "underline",
464
 
                                          "standout")),
 
422
                 "bold,underline,blink,standout", "default",
 
423
                 "bold,underline,blink,standout"),
465
424
                ))
466
425
        
467
426
        if urwid.supports_unicode():
482
441
        self.log = []
483
442
        self.max_log_length = max_log_length
484
443
        
 
444
        self.log_level = log_level
 
445
        
485
446
        # We keep a reference to the log widget so we can remove it
486
447
        # from the ListWalker without it getting destroyed
487
448
        self.logbox = ConstrainedListBox(self.log)
501
462
        self.main_loop = gobject.MainLoop()
502
463
    
503
464
    def client_not_found(self, fingerprint, address):
504
 
        self.log_message(("Client with address %s and fingerprint %s"
505
 
                          " could not be found" % (address,
506
 
                                                    fingerprint)))
 
465
        self.log_message("Client with address {} and fingerprint {}"
 
466
                         " could not be found"
 
467
                         .format(address, fingerprint))
507
468
    
508
469
    def rebuild(self):
509
470
        """This rebuilds the User Interface.
521
482
            self.uilist.append(self.logbox)
522
483
        self.topwidget = urwid.Pile(self.uilist)
523
484
    
524
 
    def log_message(self, message):
 
485
    def log_message(self, message, level=1):
 
486
        """Log message formatted with timestamp"""
 
487
        if level < self.log_level:
 
488
            return
525
489
        timestamp = datetime.datetime.now().isoformat()
526
 
        self.log_message_raw(timestamp + ": " + message)
 
490
        self.log_message_raw("{}: {}".format(timestamp, message),
 
491
                             level=level)
527
492
    
528
 
    def log_message_raw(self, markup):
 
493
    def log_message_raw(self, markup, level=1):
529
494
        """Add a log message to the log buffer."""
 
495
        if level < self.log_level:
 
496
            return
530
497
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
531
498
        if (self.max_log_length
532
499
            and len(self.log) > self.max_log_length):
539
506
        """Toggle visibility of the log buffer."""
540
507
        self.log_visible = not self.log_visible
541
508
        self.rebuild()
542
 
        #self.log_message("Log visibility changed to: "
543
 
        #                 + unicode(self.log_visible))
 
509
        self.log_message("Log visibility changed to: {}"
 
510
                         .format(self.log_visible), level=0)
544
511
    
545
512
    def change_log_display(self):
546
513
        """Change type of log display.
551
518
            self.log_wrap = "clip"
552
519
        for textwidget in self.log:
553
520
            textwidget.set_wrap_mode(self.log_wrap)
554
 
        #self.log_message("Wrap mode: " + self.log_wrap)
 
521
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
522
                         level=0)
555
523
    
556
524
    def find_and_remove_client(self, path, name):
557
525
        """Find a client by its object path and remove it.
562
530
            client = self.clients_dict[path]
563
531
        except KeyError:
564
532
            # not found?
565
 
            self.log_message("Unknown client %r (%r) removed", name,
566
 
                             path)
 
533
            self.log_message("Unknown client {!r} ({!r}) removed"
 
534
                             .format(name, path))
567
535
            return
568
536
        client.delete()
569
537
    
586
554
        if path is None:
587
555
            path = client.proxy.object_path
588
556
        self.clients_dict[path] = client
589
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
557
        self.clients.sort(key=lambda c: c.properties["Name"])
590
558
        self.refresh()
591
559
    
592
560
    def remove_client(self, client, path=None):
594
562
        if path is None:
595
563
            path = client.proxy.object_path
596
564
        del self.clients_dict[path]
597
 
        if not self.clients_dict:
598
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
599
 
            # is completely emptied, we need to recreate it.
600
 
            self.clients = urwid.SimpleListWalker([])
601
 
            self.rebuild()
602
565
        self.refresh()
603
566
    
604
567
    def refresh(self):
617
580
        try:
618
581
            mandos_clients = (self.mandos_serv
619
582
                              .GetAllClientsWithProperties())
 
583
            if not mandos_clients:
 
584
                self.log_message_raw(("bold", "Note: Server has no clients."))
620
585
        except dbus.exceptions.DBusException:
 
586
            self.log_message_raw(("bold", "Note: No Mandos server running."))
621
587
            mandos_clients = dbus.Dictionary()
622
588
        
623
589
        (self.mandos_serv
635
601
                            self.client_not_found,
636
602
                            dbus_interface=server_interface,
637
603
                            byte_arrays=True))
638
 
        for path, client in mandos_clients.iteritems():
 
604
        for path, client in mandos_clients.items():
639
605
            client_proxy_object = self.bus.get_object(self.busname,
640
606
                                                      path)
641
607
            self.add_client(MandosClientWidget(server_proxy_object
650
616
                                               logger
651
617
                                               =self.log_message),
652
618
                            path=path)
653
 
 
 
619
        
654
620
        self.refresh()
655
621
        self._input_callback_tag = (gobject.io_add_watch
656
622
                                    (sys.stdin.fileno(),
688
654
            elif key == "window resize":
689
655
                self.size = self.screen.get_cols_rows()
690
656
                self.refresh()
691
 
            elif key == "\f":  # Ctrl-L
 
657
            elif key == "ctrl l":
 
658
                self.screen.clear()
692
659
                self.refresh()
693
660
            elif key == "l" or key == "D":
694
661
                self.toggle_log_display()
706
673
                                            "?: Help",
707
674
                                            "l: Log window toggle",
708
675
                                            "TAB: Switch window",
709
 
                                            "w: Wrap (log)"))))
 
676
                                            "w: Wrap (log lines)",
 
677
                                            "v: Toggle verbose log",
 
678
                                            ))))
710
679
                self.log_message_raw(("bold",
711
680
                                      "  "
712
681
                                      .join(("Clients:",
725
694
                else:
726
695
                    self.topwidget.set_focus(self.logbox)
727
696
                self.refresh()
 
697
            elif key == "v":
 
698
                if self.log_level == 0:
 
699
                    self.log_level = 1
 
700
                    self.log_message("Verbose mode: Off")
 
701
                else:
 
702
                    self.log_level = 0
 
703
                    self.log_message("Verbose mode: On")
728
704
            #elif (key == "end" or key == "meta >" or key == "G"
729
705
            #      or key == ">"):
730
706
            #    pass            # xxx end-of-buffer
753
729
    ui.run()
754
730
except KeyboardInterrupt:
755
731
    ui.screen.stop()
756
 
except Exception, e:
757
 
    ui.log_message(unicode(e))
 
732
except Exception as e:
 
733
    ui.log_message(str(e))
758
734
    ui.screen.stop()
759
735
    raise