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  • Committer: Teddy Hogeborn
  • Date: 2014-07-25 23:32:04 UTC
  • mto: (237.7.272 trunk)
  • mto: This revision was merged to the branch mainline in revision 321.
  • Revision ID: teddy@recompile.se-20140725233204-arvlsqrpfkfcwo10
Use the new auto-numbered "{}" syntax for the .format() string method.

* mandos (AvahiService.entry_group_state_changed): Use auto-numbering
                                                   for .format().
  (AvahiServiceToSyslog.rename): - '' -
  (Client.config_parser): - '' -
  (dbus_service_property): - '' -
  (DBusObjectWithProperties._is_dbus_thing): - '' -
  (DBusObjectWithProperties.Set): - '' -
  (alternate_dbus_interfaces/wrapper): - '' -
  (ClientDBus.notifychangeproperty): - '' -
  (string_to_delta): - '' -
  (daemon): - '' -
  (main): - '' -
  (main/cleanup): - '' -
* mandos-ctl (milliseconds_to_string): - '' -
  (main): - '' -
* mandos-monitor (MandosClientWidget.__init__): - '' -
  (MandosClientWidget.checker_completed): - '' -
  (MandosClientWidget.update): - '' -
  (UserInterface.client_not_found): - '' -
  (UserInterface.log_message): - '' -
  (UserInterface.toggle_log_display): - '' -
  (UserInterface.change_log_display): - '' -
  (UserInterface.find_and_remove_client): - '' -

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Lines of Context:
mandos-monitor
3
3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
5
# 
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
8
# 
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
 
# Contact the authors at <mandos@fukt.bsnet.se>.
 
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
49
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
50
58
 
51
59
# Some useful constants
52
 
domain = 'se.bsnet.fukt'
 
60
domain = 'se.recompile'
53
61
server_interface = domain + '.Mandos'
54
62
client_interface = domain + '.Mandos.Client'
55
 
version = "1.3.1"
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 = "1.6.7"
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 {}'
 
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:
 
172
            # Will update the shown timer value every second
203
173
            self._update_timer_callback_tag = (gobject.timeout_add
204
174
                                               (1000,
205
175
                                                self.update_timer))
206
 
        elif old and self._update_timer_callback_lock == 0:
 
176
        elif not (flag or self._update_timer_callback_tag is None):
207
177
            gobject.source_remove(self._update_timer_callback_tag)
208
178
            self._update_timer_callback_tag = None
209
179
    
210
180
    def checker_completed(self, exitstatus, condition, command):
211
181
        if exitstatus == 0:
212
 
            if self.last_checker_failed:
213
 
                self.last_checker_failed = False
214
 
                self.using_timer(False)
215
 
            #self.logger('Checker for client %s (command "%s")'
216
 
            #            ' was successful'
217
 
            #            % (self.properties["Name"], command))
 
182
            self.logger('Checker for client {} (command "{}")'
 
183
                        ' succeeded'.format(self.properties["Name"],
 
184
                                            command), level=0)
218
185
            self.update()
219
186
            return
220
187
        # Checker failed
221
 
        if not self.last_checker_failed:
222
 
            self.last_checker_failed = True
223
 
            self.using_timer(True)
224
188
        if os.WIFEXITED(condition):
225
 
            self.logger('Checker for client %s (command "%s")'
226
 
                        ' failed with exit code %s'
227
 
                        % (self.properties["Name"], command,
228
 
                           os.WEXITSTATUS(condition)))
 
189
            self.logger('Checker for client {} (command "{}") failed'
 
190
                        ' with exit code {}'
 
191
                        .format(self.properties["Name"], command,
 
192
                                os.WEXITSTATUS(condition)))
229
193
        elif os.WIFSIGNALED(condition):
230
 
            self.logger('Checker for client %s (command "%s")'
231
 
                        ' was killed by signal %s'
232
 
                        % (self.properties["Name"], command,
233
 
                           os.WTERMSIG(condition)))
 
194
            self.logger('Checker for client {} (command "{}") was'
 
195
                        ' killed by signal {}'
 
196
                        .format(self.properties["Name"], command,
 
197
                                os.WTERMSIG(condition)))
234
198
        elif os.WCOREDUMP(condition):
235
 
            self.logger('Checker for client %s (command "%s")'
236
 
                        ' dumped core'
237
 
                        % (self.properties["Name"], command))
 
199
            self.logger('Checker for client {} (command "{}") dumped'
 
200
                        ' core'.format(self.properties["Name"],
 
201
                                       command))
238
202
        else:
239
 
            self.logger('Checker for client %s completed'
240
 
                        ' mysteriously')
 
203
            self.logger('Checker for client {} completed'
 
204
                        ' mysteriously'
 
205
                        .format(self.properties["Name"]))
241
206
        self.update()
242
207
    
243
208
    def checker_started(self, command):
244
 
        #self.logger('Client %s started checker "%s"'
245
 
        #            % (self.properties["Name"], unicode(command)))
246
 
        pass
 
209
        """Server signals that a checker started."""
 
210
        self.logger('Client {} started checker "{}"'
 
211
                    .format(self.properties["Name"],
 
212
                            command), level=0)
247
213
    
248
214
    def got_secret(self):
249
 
        self.last_checker_failed = False
250
 
        self.logger('Client %s received its secret'
251
 
                    % self.properties["Name"])
 
215
        self.logger('Client {} received its secret'
 
216
                    .format(self.properties["Name"]))
252
217
    
253
218
    def need_approval(self, timeout, default):
254
219
        if not default:
255
 
            message = 'Client %s needs approval within %s seconds'
 
220
            message = 'Client {} needs approval within {} seconds'
256
221
        else:
257
 
            message = 'Client %s will get its secret in %s seconds'
258
 
        self.logger(message
259
 
                    % (self.properties["Name"], timeout/1000))
260
 
        self.using_timer(True)
 
222
            message = 'Client {} will get its secret in {} seconds'
 
223
        self.logger(message.format(self.properties["Name"],
 
224
                                   timeout/1000))
261
225
    
262
226
    def rejected(self, reason):
263
 
        self.logger('Client %s was rejected; reason: %s'
264
 
                    % (self.properties["Name"], reason))
 
227
        self.logger('Client {} was rejected; reason: {}'
 
228
                    .format(self.properties["Name"], reason))
265
229
    
266
230
    def selectable(self):
267
231
        """Make this a "selectable" widget.
289
253
                          "bold-underline-blink":
290
254
                              "bold-underline-blink-standout",
291
255
                          }
292
 
 
 
256
        
293
257
        # Rebuild focus and non-focus widgets using current properties
294
 
 
 
258
        
295
259
        # Base part of a client. Name!
296
 
        base = ('%(name)s: '
297
 
                      % {"name": self.properties["Name"]})
 
260
        base = '{name}: '.format(name=self.properties["Name"])
298
261
        if not self.properties["Enabled"]:
299
262
            message = "DISABLED"
 
263
            self.using_timer(False)
300
264
        elif self.properties["ApprovalPending"]:
301
265
            timeout = datetime.timedelta(milliseconds
302
266
                                         = self.properties
304
268
            last_approval_request = isoformat_to_datetime(
305
269
                self.properties["LastApprovalRequest"])
306
270
            if last_approval_request is not None:
307
 
                timer = timeout - (datetime.datetime.utcnow()
308
 
                                   - last_approval_request)
 
271
                timer = max(timeout - (datetime.datetime.utcnow()
 
272
                                       - last_approval_request),
 
273
                            datetime.timedelta())
309
274
            else:
310
275
                timer = datetime.timedelta()
311
276
            if self.properties["ApprovedByDefault"]:
312
 
                message = "Approval in %s. (d)eny?"
313
 
            else:
314
 
                message = "Denial in %s. (a)pprove?"
315
 
            message = message % unicode(timer).rsplit(".", 1)[0]
316
 
        elif self.last_checker_failed:
317
 
            timeout = datetime.timedelta(milliseconds
318
 
                                         = self.properties
319
 
                                         ["Timeout"])
320
 
            last_ok = isoformat_to_datetime(
321
 
                max((self.properties["LastCheckedOK"]
322
 
                     or self.properties["Created"]),
323
 
                    self.properties["LastEnabled"]))
324
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
277
                message = "Approval in {}. (d)eny?"
 
278
            else:
 
279
                message = "Denial in {}. (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
 
284
            expires = self.properties["Expires"]
 
285
            if expires == "":
 
286
                timer = datetime.timedelta(0)
 
287
            else:
 
288
                expires = (datetime.datetime.strptime
 
289
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
290
                timer = max(expires - datetime.datetime.utcnow(),
 
291
                            datetime.timedelta())
325
292
            message = ('A checker has failed! Time until client'
326
 
                       ' gets disabled: %s'
327
 
                           % unicode(timer).rsplit(".", 1)[0])
 
293
                       ' gets disabled: {}'
 
294
                       .format(str(timer).rsplit(".", 1)[0]))
 
295
            self.using_timer(True)
328
296
        else:
329
297
            message = "enabled"
330
 
        self._text = "%s%s" % (base, message)
331
 
            
 
298
            self.using_timer(False)
 
299
        self._text = "{}{}".format(base, message)
 
300
        
332
301
        if not urwid.supports_unicode():
333
302
            self._text = self._text.encode("ascii", "replace")
334
303
        textlist = [("normal", self._text)]
346
315
            self.update_hook()
347
316
    
348
317
    def update_timer(self):
349
 
        "called by gobject"
 
318
        """called by gobject. Will indefinitely loop until
 
319
        gobject.source_remove() on tag is called"""
350
320
        self.update()
351
321
        return True             # Keep calling this
352
322
    
353
 
    def delete(self, *args, **kwargs):
 
323
    def delete(self, **kwargs):
354
324
        if self._update_timer_callback_tag is not None:
355
325
            gobject.source_remove(self._update_timer_callback_tag)
356
326
            self._update_timer_callback_tag = None
359
329
        self.match_objects = ()
360
330
        if self.delete_hook is not None:
361
331
            self.delete_hook(self)
362
 
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
332
        return super(MandosClientWidget, self).delete(**kwargs)
363
333
    
364
334
    def render(self, maxcolrow, focus=False):
365
335
        """Render differently if we have focus.
407
377
        else:
408
378
            return key
409
379
    
410
 
    def property_changed(self, property=None, value=None,
411
 
                         *args, **kwargs):
 
380
    def property_changed(self, property=None, **kwargs):
412
381
        """Call self.update() if old value is not new value.
413
382
        This overrides the method from MandosClientPropertyCache"""
414
 
        property_name = unicode(property)
 
383
        property_name = str(property)
415
384
        old_value = self.properties.get(property_name)
416
385
        super(MandosClientWidget, self).property_changed(
417
 
            property=property, value=value, *args, **kwargs)
 
386
            property=property, **kwargs)
418
387
        if self.properties.get(property_name) != old_value:
419
388
            self.update()
420
389
 
424
393
    "down" key presses, thus not allowing any containing widgets to
425
394
    use them as an excuse to shift focus away from this widget.
426
395
    """
427
 
    def keypress(self, maxcolrow, key):
428
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
396
    def keypress(self, *args, **kwargs):
 
397
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
429
398
        if ret in ("up", "down"):
430
399
            return
431
400
        return ret
435
404
    """This is the entire user interface - the whole screen
436
405
    with boxes, lists of client widgets, etc.
437
406
    """
438
 
    def __init__(self, max_log_length=1000):
 
407
    def __init__(self, max_log_length=1000, log_level=1):
439
408
        DBusGMainLoop(set_as_default=True)
440
409
        
441
410
        self.screen = urwid.curses_display.Screen()
444
413
                ("normal",
445
414
                 "default", "default", None),
446
415
                ("bold",
447
 
                 "default", "default", "bold"),
 
416
                 "bold", "default", "bold"),
448
417
                ("underline-blink",
449
 
                 "default", "default", "underline"),
 
418
                 "underline,blink", "default", "underline,blink"),
450
419
                ("standout",
451
 
                 "default", "default", "standout"),
 
420
                 "standout", "default", "standout"),
452
421
                ("bold-underline-blink",
453
 
                 "default", "default", ("bold", "underline")),
 
422
                 "bold,underline,blink", "default", "bold,underline,blink"),
454
423
                ("bold-standout",
455
 
                 "default", "default", ("bold", "standout")),
 
424
                 "bold,standout", "default", "bold,standout"),
456
425
                ("underline-blink-standout",
457
 
                 "default", "default", ("underline", "standout")),
 
426
                 "underline,blink,standout", "default",
 
427
                 "underline,blink,standout"),
458
428
                ("bold-underline-blink-standout",
459
 
                 "default", "default", ("bold", "underline",
460
 
                                          "standout")),
 
429
                 "bold,underline,blink,standout", "default",
 
430
                 "bold,underline,blink,standout"),
461
431
                ))
462
432
        
463
433
        if urwid.supports_unicode():
478
448
        self.log = []
479
449
        self.max_log_length = max_log_length
480
450
        
 
451
        self.log_level = log_level
 
452
        
481
453
        # We keep a reference to the log widget so we can remove it
482
454
        # from the ListWalker without it getting destroyed
483
455
        self.logbox = ConstrainedListBox(self.log)
495
467
        
496
468
        self.busname = domain + '.Mandos'
497
469
        self.main_loop = gobject.MainLoop()
498
 
        self.bus = dbus.SystemBus()
499
 
        mandos_dbus_objc = self.bus.get_object(
500
 
            self.busname, "/", follow_name_owner_changes=True)
501
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
502
 
                                          dbus_interface
503
 
                                          = server_interface)
504
 
        try:
505
 
            mandos_clients = (self.mandos_serv
506
 
                              .GetAllClientsWithProperties())
507
 
        except dbus.exceptions.DBusException:
508
 
            mandos_clients = dbus.Dictionary()
509
 
        
510
 
        (self.mandos_serv
511
 
         .connect_to_signal("ClientRemoved",
512
 
                            self.find_and_remove_client,
513
 
                            dbus_interface=server_interface,
514
 
                            byte_arrays=True))
515
 
        (self.mandos_serv
516
 
         .connect_to_signal("ClientAdded",
517
 
                            self.add_new_client,
518
 
                            dbus_interface=server_interface,
519
 
                            byte_arrays=True))
520
 
        (self.mandos_serv
521
 
         .connect_to_signal("ClientNotFound",
522
 
                            self.client_not_found,
523
 
                            dbus_interface=server_interface,
524
 
                            byte_arrays=True))
525
 
        for path, client in mandos_clients.iteritems():
526
 
            client_proxy_object = self.bus.get_object(self.busname,
527
 
                                                      path)
528
 
            self.add_client(MandosClientWidget(server_proxy_object
529
 
                                               =self.mandos_serv,
530
 
                                               proxy_object
531
 
                                               =client_proxy_object,
532
 
                                               properties=client,
533
 
                                               update_hook
534
 
                                               =self.refresh,
535
 
                                               delete_hook
536
 
                                               =self.remove_client,
537
 
                                               logger
538
 
                                               =self.log_message),
539
 
                            path=path)
540
470
    
541
471
    def client_not_found(self, fingerprint, address):
542
 
        self.log_message(("Client with address %s and fingerprint %s"
543
 
                          " could not be found" % (address,
544
 
                                                    fingerprint)))
 
472
        self.log_message("Client with address {} and fingerprint {}"
 
473
                         " could not be found"
 
474
                         .format(address, fingerprint))
545
475
    
546
476
    def rebuild(self):
547
477
        """This rebuilds the User Interface.
557
487
                                                     self.divider)))
558
488
        if self.log_visible:
559
489
            self.uilist.append(self.logbox)
560
 
            pass
561
490
        self.topwidget = urwid.Pile(self.uilist)
562
491
    
563
 
    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
564
496
        timestamp = datetime.datetime.now().isoformat()
565
 
        self.log_message_raw(timestamp + ": " + message)
 
497
        self.log_message_raw("{}: {}".format(timestamp, message),
 
498
                             level=level)
566
499
    
567
 
    def log_message_raw(self, markup):
 
500
    def log_message_raw(self, markup, level=1):
568
501
        """Add a log message to the log buffer."""
 
502
        if level < self.log_level:
 
503
            return
569
504
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
570
505
        if (self.max_log_length
571
506
            and len(self.log) > self.max_log_length):
578
513
        """Toggle visibility of the log buffer."""
579
514
        self.log_visible = not self.log_visible
580
515
        self.rebuild()
581
 
        #self.log_message("Log visibility changed to: "
582
 
        #                 + unicode(self.log_visible))
 
516
        self.log_message("Log visibility changed to: {}"
 
517
                         .format(self.log_visible), level=0)
583
518
    
584
519
    def change_log_display(self):
585
520
        """Change type of log display.
590
525
            self.log_wrap = "clip"
591
526
        for textwidget in self.log:
592
527
            textwidget.set_wrap_mode(self.log_wrap)
593
 
        #self.log_message("Wrap mode: " + self.log_wrap)
 
528
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
529
                         level=0)
594
530
    
595
531
    def find_and_remove_client(self, path, name):
596
532
        """Find a client by its object path and remove it.
601
537
            client = self.clients_dict[path]
602
538
        except KeyError:
603
539
            # not found?
604
 
            self.log_message("Unknown client %r (%r) removed", name,
605
 
                             path)
 
540
            self.log_message("Unknown client {!r} ({!r}) removed"
 
541
                             .format(name, path))
606
542
            return
607
543
        client.delete()
608
544
    
625
561
        if path is None:
626
562
            path = client.proxy.object_path
627
563
        self.clients_dict[path] = client
628
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
564
        self.clients.sort(key=lambda c: c.properties["Name"])
629
565
        self.refresh()
630
566
    
631
567
    def remove_client(self, client, path=None):
633
569
        if path is None:
634
570
            path = client.proxy.object_path
635
571
        del self.clients_dict[path]
636
 
        if not self.clients_dict:
637
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
638
 
            # is completely emptied, we need to recreate it.
639
 
            self.clients = urwid.SimpleListWalker([])
640
 
            self.rebuild()
641
572
        self.refresh()
642
573
    
643
574
    def refresh(self):
647
578
    
648
579
    def run(self):
649
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
        
650
627
        self.refresh()
651
628
        self._input_callback_tag = (gobject.io_add_watch
652
629
                                    (sys.stdin.fileno(),
684
661
            elif key == "window resize":
685
662
                self.size = self.screen.get_cols_rows()
686
663
                self.refresh()
687
 
            elif key == "\f":  # Ctrl-L
 
664
            elif key == "ctrl l":
 
665
                self.screen.clear()
688
666
                self.refresh()
689
667
            elif key == "l" or key == "D":
690
668
                self.toggle_log_display()
702
680
                                            "?: Help",
703
681
                                            "l: Log window toggle",
704
682
                                            "TAB: Switch window",
705
 
                                            "w: Wrap (log)"))))
 
683
                                            "w: Wrap (log lines)",
 
684
                                            "v: Toggle verbose log",
 
685
                                            ))))
706
686
                self.log_message_raw(("bold",
707
687
                                      "  "
708
688
                                      .join(("Clients:",
721
701
                else:
722
702
                    self.topwidget.set_focus(self.logbox)
723
703
                self.refresh()
 
704
            elif key == "v":
 
705
                if self.log_level == 0:
 
706
                    self.log_level = 1
 
707
                    self.log_message("Verbose mode: Off")
 
708
                else:
 
709
                    self.log_level = 0
 
710
                    self.log_message("Verbose mode: On")
724
711
            #elif (key == "end" or key == "meta >" or key == "G"
725
712
            #      or key == ">"):
726
713
            #    pass            # xxx end-of-buffer
749
736
    ui.run()
750
737
except KeyboardInterrupt:
751
738
    ui.screen.stop()
752
 
except Exception, e:
753
 
    ui.log_message(unicode(e))
 
739
except Exception as e:
 
740
    ui.log_message(str(e))
754
741
    ui.screen.stop()
755
742
    raise