/mandos/trunk

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/trunk

« back to all changes in this revision

Viewing changes to mandos-monitor

Miscellaneous fixes prompted by lintian:

* debian/control (Conflicts): Changed to "Breaks:".
* debian/copyright: Updated format.
* debian/mandos-client.postinst: Use "set -e" instead of "#!/bin/sh -e".
* debian/mandos-client.postrm: - '' -
* debian/mandos.postinst: - '' -
* debian/mandos.prerm: Consistent magic.
* mandos: Small comment change.
* mandos-clients.conf.xml (OPTIONS/extended_timeout): Fix spelling.

Show diffs side-by-side

added added

removed removed

Lines of Context:
mandos-monitor
3
3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
5
# 
6
 
# Copyright © 2009-2015 Teddy Hogeborn
7
 
# Copyright © 2009-2015 Björn Påhlsson
 
6
# Copyright © 2009-2011 Teddy Hogeborn
 
7
# Copyright © 2009-2011 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
21
 
# <http://www.gnu.org/licenses/>.
 
20
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
22
21
# 
23
22
# Contact the authors at <mandos@recompile.se>.
24
23
# 
25
24
 
26
25
from __future__ import (division, absolute_import, print_function,
27
26
                        unicode_literals)
28
 
try:
29
 
    from future_builtins import *
30
 
except ImportError:
31
 
    pass
32
27
 
33
28
import sys
34
29
import os
 
30
import signal
35
31
 
36
32
import datetime
37
33
 
39
35
import urwid
40
36
 
41
37
from dbus.mainloop.glib import DBusGMainLoop
42
 
try:
43
 
    import gobject
44
 
except ImportError:
45
 
    from gi.repository import GObject as gobject
 
38
import gobject
46
39
 
47
40
import dbus
48
41
 
 
42
import UserList
 
43
 
49
44
import locale
50
45
 
51
 
if sys.version_info.major == 2:
52
 
    str = unicode
53
 
 
54
46
locale.setlocale(locale.LC_ALL, '')
55
47
 
56
48
import logging
60
52
domain = 'se.recompile'
61
53
server_interface = domain + '.Mandos'
62
54
client_interface = domain + '.Mandos.Client'
63
 
version = "1.6.9"
 
55
version = "1.4.0"
 
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)
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, properties=None, **kwargs):
 
86
    def __init__(self, proxy_object=None, *args, **kwargs):
87
87
        self.proxy = proxy_object # Mandos Client proxy object
88
 
        self.properties = dict() if properties is None else properties
 
88
        
 
89
        self.properties = dict()
89
90
        self.property_changed_match = (
90
 
            self.proxy.connect_to_signal("PropertiesChanged",
91
 
                                         self.properties_changed,
92
 
                                         dbus.PROPERTIES_IFACE,
 
91
            self.proxy.connect_to_signal("PropertyChanged",
 
92
                                         self.property_changed,
 
93
                                         client_interface,
93
94
                                         byte_arrays=True))
94
95
        
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)
 
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)
102
103
    
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.
 
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.
106
107
        """
107
108
        # Update properties dict with new value
108
 
        self.properties.update(properties)
 
109
        self.properties[property] = value
109
110
    
110
 
    def delete(self):
 
111
    def delete(self, *args, **kwargs):
111
112
        self.property_changed_match.remove()
 
113
        super(MandosClientPropertyCache, self).__init__(
 
114
            *args, **kwargs)
112
115
 
113
116
 
114
117
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
116
119
    """
117
120
    
118
121
    def __init__(self, server_proxy_object=None, update_hook=None,
119
 
                 delete_hook=None, logger=None, **kwargs):
 
122
                 delete_hook=None, logger=None, *args, **kwargs):
120
123
        # Called on update
121
124
        self.update_hook = update_hook
122
125
        # Called on delete
127
130
        self.logger = logger
128
131
        
129
132
        self._update_timer_callback_tag = None
 
133
        self._update_timer_callback_lock = 0
 
134
        self.last_checker_failed = False
130
135
        
131
136
        # The widget shown normally
132
137
        self._text_widget = urwid.Text("")
133
138
        # The widget shown when we have focus
134
139
        self._focus_text_widget = urwid.Text("")
135
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
140
        super(MandosClientWidget, self).__init__(
 
141
            update_hook=update_hook, delete_hook=delete_hook,
 
142
            *args, **kwargs)
136
143
        self.update()
137
144
        self.opened = False
138
145
        
 
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
        
139
164
        self.match_objects = (
140
165
            self.proxy.connect_to_signal("CheckerCompleted",
141
166
                                         self.checker_completed,
157
182
                                         self.rejected,
158
183
                                         client_interface,
159
184
                                         byte_arrays=True))
160
 
        self.logger('Created client {}'
161
 
                    .format(self.properties["Name"]), level=0)
 
185
        #self.logger('Created client %s' % (self.properties["Name"]))
162
186
    
 
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
        
163
193
    def using_timer(self, flag):
164
194
        """Call this method with True or False when timer should be
165
195
        activated or deactivated.
166
196
        """
167
 
        if flag and self._update_timer_callback_tag is None:
 
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:
168
203
            # Will update the shown timer value every second
169
204
            self._update_timer_callback_tag = (gobject.timeout_add
170
205
                                               (1000,
171
206
                                                self.update_timer))
172
 
        elif not (flag or self._update_timer_callback_tag is None):
 
207
        elif old and self._update_timer_callback_lock == 0:
173
208
            gobject.source_remove(self._update_timer_callback_tag)
174
209
            self._update_timer_callback_tag = None
175
210
    
176
 
    def checker_completed(self, exitstatus, signal, command):
 
211
    def checker_completed(self, exitstatus, condition, command):
177
212
        if exitstatus == 0:
178
 
            self.logger('Checker for client {} (command "{}")'
179
 
                        ' succeeded'.format(self.properties["Name"],
180
 
                                            command), level=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))
181
219
            self.update()
182
220
            return
183
221
        # Checker failed
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))
 
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))
194
239
        else:
195
 
            self.logger('Checker for client {} completed'
196
 
                        ' mysteriously'
197
 
                        .format(self.properties["Name"]))
 
240
            self.logger('Checker for client %s completed'
 
241
                        ' mysteriously')
198
242
        self.update()
199
243
    
200
244
    def checker_started(self, command):
201
 
        """Server signals that a checker started."""
202
 
        self.logger('Client {} started checker "{}"'
203
 
                    .format(self.properties["Name"],
204
 
                            command), level=0)
 
245
        #self.logger('Client %s started checker "%s"'
 
246
        #            % (self.properties["Name"], unicode(command)))
 
247
        pass
205
248
    
206
249
    def got_secret(self):
207
 
        self.logger('Client {} received its secret'
208
 
                    .format(self.properties["Name"]))
 
250
        self.last_checker_failed = False
 
251
        self.logger('Client %s received its secret'
 
252
                    % self.properties["Name"])
209
253
    
210
254
    def need_approval(self, timeout, default):
211
255
        if not default:
212
 
            message = 'Client {} needs approval within {} seconds'
 
256
            message = 'Client %s needs approval within %s seconds'
213
257
        else:
214
 
            message = 'Client {} will get its secret in {} seconds'
215
 
        self.logger(message.format(self.properties["Name"],
216
 
                                   timeout/1000))
 
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)
217
262
    
218
263
    def rejected(self, reason):
219
 
        self.logger('Client {} was rejected; reason: {}'
220
 
                    .format(self.properties["Name"], reason))
 
264
        self.logger('Client %s was rejected; reason: %s'
 
265
                    % (self.properties["Name"], reason))
221
266
    
222
267
    def selectable(self):
223
268
        """Make this a "selectable" widget.
245
290
                          "bold-underline-blink":
246
291
                              "bold-underline-blink-standout",
247
292
                          }
248
 
        
 
293
 
249
294
        # Rebuild focus and non-focus widgets using current properties
250
 
        
 
295
 
251
296
        # Base part of a client. Name!
252
 
        base = '{name}: '.format(name=self.properties["Name"])
 
297
        base = ('%(name)s: '
 
298
                      % {"name": self.properties["Name"]})
253
299
        if not self.properties["Enabled"]:
254
300
            message = "DISABLED"
255
 
            self.using_timer(False)
256
301
        elif self.properties["ApprovalPending"]:
257
302
            timeout = datetime.timedelta(milliseconds
258
303
                                         = self.properties
260
305
            last_approval_request = isoformat_to_datetime(
261
306
                self.properties["LastApprovalRequest"])
262
307
            if last_approval_request is not None:
263
 
                timer = max(timeout - (datetime.datetime.utcnow()
264
 
                                       - last_approval_request),
265
 
                            datetime.timedelta())
 
308
                timer = timeout - (datetime.datetime.utcnow()
 
309
                                   - last_approval_request)
266
310
            else:
267
311
                timer = datetime.timedelta()
268
312
            if self.properties["ApprovedByDefault"]:
269
 
                message = "Approval in {}. (d)eny?"
 
313
                message = "Approval in %s. (d)eny?"
270
314
            else:
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
 
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
276
319
            expires = self.properties["Expires"]
277
320
            if expires == "":
278
321
                timer = datetime.timedelta(0)
279
322
            else:
280
 
                expires = (datetime.datetime.strptime
281
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
282
 
                timer = max(expires - datetime.datetime.utcnow(),
283
 
                            datetime.timedelta())
 
323
                expires = datetime.datetime.strptime(expires,
 
324
                                                     '%Y-%m-%dT%H:%M:%S.%f')
 
325
                timer = expires - datetime.datetime.utcnow()
284
326
            message = ('A checker has failed! Time until client'
285
 
                       ' gets disabled: {}'
286
 
                       .format(str(timer).rsplit(".", 1)[0]))
287
 
            self.using_timer(True)
 
327
                       ' gets disabled: %s'
 
328
                           % unicode(timer).rsplit(".", 1)[0])
288
329
        else:
289
330
            message = "enabled"
290
 
            self.using_timer(False)
291
 
        self._text = "{}{}".format(base, message)
292
 
        
 
331
        self._text = "%s%s" % (base, message)
 
332
            
293
333
        if not urwid.supports_unicode():
294
334
            self._text = self._text.encode("ascii", "replace")
295
335
        textlist = [("normal", self._text)]
312
352
        self.update()
313
353
        return True             # Keep calling this
314
354
    
315
 
    def delete(self, **kwargs):
 
355
    def delete(self, *args, **kwargs):
316
356
        if self._update_timer_callback_tag is not None:
317
357
            gobject.source_remove(self._update_timer_callback_tag)
318
358
            self._update_timer_callback_tag = None
321
361
        self.match_objects = ()
322
362
        if self.delete_hook is not None:
323
363
            self.delete_hook(self)
324
 
        return super(MandosClientWidget, self).delete(**kwargs)
 
364
        return super(MandosClientWidget, self).delete(*args, **kwargs)
325
365
    
326
366
    def render(self, maxcolrow, focus=False):
327
367
        """Render differently if we have focus.
369
409
        else:
370
410
            return key
371
411
    
372
 
    def properties_changed(self, interface, properties, invalidated):
373
 
        """Call self.update() if any properties changed.
 
412
    def property_changed(self, property=None, value=None,
 
413
                         *args, **kwargs):
 
414
        """Call self.update() if old value is not new value.
374
415
        This overrides the method from MandosClientPropertyCache"""
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):
 
416
        property_name = unicode(property)
 
417
        old_value = self.properties.get(property_name)
 
418
        super(MandosClientWidget, self).property_changed(
 
419
            property=property, value=value, *args, **kwargs)
 
420
        if self.properties.get(property_name) != old_value:
381
421
            self.update()
382
422
 
383
423
 
386
426
    "down" key presses, thus not allowing any containing widgets to
387
427
    use them as an excuse to shift focus away from this widget.
388
428
    """
389
 
    def keypress(self, *args, **kwargs):
390
 
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
429
    def keypress(self, maxcolrow, key):
 
430
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
391
431
        if ret in ("up", "down"):
392
432
            return
393
433
        return ret
397
437
    """This is the entire user interface - the whole screen
398
438
    with boxes, lists of client widgets, etc.
399
439
    """
400
 
    def __init__(self, max_log_length=1000, log_level=1):
 
440
    def __init__(self, max_log_length=1000):
401
441
        DBusGMainLoop(set_as_default=True)
402
442
        
403
443
        self.screen = urwid.curses_display.Screen()
406
446
                ("normal",
407
447
                 "default", "default", None),
408
448
                ("bold",
409
 
                 "bold", "default", "bold"),
 
449
                 "default", "default", "bold"),
410
450
                ("underline-blink",
411
 
                 "underline,blink", "default", "underline,blink"),
 
451
                 "default", "default", "underline"),
412
452
                ("standout",
413
 
                 "standout", "default", "standout"),
 
453
                 "default", "default", "standout"),
414
454
                ("bold-underline-blink",
415
 
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
455
                 "default", "default", ("bold", "underline")),
416
456
                ("bold-standout",
417
 
                 "bold,standout", "default", "bold,standout"),
 
457
                 "default", "default", ("bold", "standout")),
418
458
                ("underline-blink-standout",
419
 
                 "underline,blink,standout", "default",
420
 
                 "underline,blink,standout"),
 
459
                 "default", "default", ("underline", "standout")),
421
460
                ("bold-underline-blink-standout",
422
 
                 "bold,underline,blink,standout", "default",
423
 
                 "bold,underline,blink,standout"),
 
461
                 "default", "default", ("bold", "underline",
 
462
                                          "standout")),
424
463
                ))
425
464
        
426
465
        if urwid.supports_unicode():
441
480
        self.log = []
442
481
        self.max_log_length = max_log_length
443
482
        
444
 
        self.log_level = log_level
445
 
        
446
483
        # We keep a reference to the log widget so we can remove it
447
484
        # from the ListWalker without it getting destroyed
448
485
        self.logbox = ConstrainedListBox(self.log)
460
497
        
461
498
        self.busname = domain + '.Mandos'
462
499
        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)
463
542
    
464
543
    def client_not_found(self, fingerprint, address):
465
 
        self.log_message("Client with address {} and fingerprint {}"
466
 
                         " could not be found"
467
 
                         .format(address, fingerprint))
 
544
        self.log_message(("Client with address %s and fingerprint %s"
 
545
                          " could not be found" % (address,
 
546
                                                    fingerprint)))
468
547
    
469
548
    def rebuild(self):
470
549
        """This rebuilds the User Interface.
480
559
                                                     self.divider)))
481
560
        if self.log_visible:
482
561
            self.uilist.append(self.logbox)
 
562
            pass
483
563
        self.topwidget = urwid.Pile(self.uilist)
484
564
    
485
 
    def log_message(self, message, level=1):
486
 
        """Log message formatted with timestamp"""
487
 
        if level < self.log_level:
488
 
            return
 
565
    def log_message(self, message):
489
566
        timestamp = datetime.datetime.now().isoformat()
490
 
        self.log_message_raw("{}: {}".format(timestamp, message),
491
 
                             level=level)
 
567
        self.log_message_raw(timestamp + ": " + message)
492
568
    
493
 
    def log_message_raw(self, markup, level=1):
 
569
    def log_message_raw(self, markup):
494
570
        """Add a log message to the log buffer."""
495
 
        if level < self.log_level:
496
 
            return
497
571
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
498
572
        if (self.max_log_length
499
573
            and len(self.log) > self.max_log_length):
506
580
        """Toggle visibility of the log buffer."""
507
581
        self.log_visible = not self.log_visible
508
582
        self.rebuild()
509
 
        self.log_message("Log visibility changed to: {}"
510
 
                         .format(self.log_visible), level=0)
 
583
        #self.log_message("Log visibility changed to: "
 
584
        #                 + unicode(self.log_visible))
511
585
    
512
586
    def change_log_display(self):
513
587
        """Change type of log display.
518
592
            self.log_wrap = "clip"
519
593
        for textwidget in self.log:
520
594
            textwidget.set_wrap_mode(self.log_wrap)
521
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
522
 
                         level=0)
 
595
        #self.log_message("Wrap mode: " + self.log_wrap)
523
596
    
524
597
    def find_and_remove_client(self, path, name):
525
598
        """Find a client by its object path and remove it.
530
603
            client = self.clients_dict[path]
531
604
        except KeyError:
532
605
            # not found?
533
 
            self.log_message("Unknown client {!r} ({!r}) removed"
534
 
                             .format(name, path))
 
606
            self.log_message("Unknown client %r (%r) removed", name,
 
607
                             path)
535
608
            return
536
609
        client.delete()
537
610
    
554
627
        if path is None:
555
628
            path = client.proxy.object_path
556
629
        self.clients_dict[path] = client
557
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
630
        self.clients.sort(None, lambda c: c.properties["Name"])
558
631
        self.refresh()
559
632
    
560
633
    def remove_client(self, client, path=None):
562
635
        if path is None:
563
636
            path = client.proxy.object_path
564
637
        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()
565
643
        self.refresh()
566
644
    
567
645
    def refresh(self):
571
649
    
572
650
    def run(self):
573
651
        """Start the main loop and exit when it's done."""
574
 
        self.bus = dbus.SystemBus()
575
 
        mandos_dbus_objc = self.bus.get_object(
576
 
            self.busname, "/", follow_name_owner_changes=True)
577
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
578
 
                                          dbus_interface
579
 
                                          = server_interface)
580
 
        try:
581
 
            mandos_clients = (self.mandos_serv
582
 
                              .GetAllClientsWithProperties())
583
 
            if not mandos_clients:
584
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
585
 
        except dbus.exceptions.DBusException:
586
 
            self.log_message_raw(("bold", "Note: No Mandos server running."))
587
 
            mandos_clients = dbus.Dictionary()
588
 
        
589
 
        (self.mandos_serv
590
 
         .connect_to_signal("ClientRemoved",
591
 
                            self.find_and_remove_client,
592
 
                            dbus_interface=server_interface,
593
 
                            byte_arrays=True))
594
 
        (self.mandos_serv
595
 
         .connect_to_signal("ClientAdded",
596
 
                            self.add_new_client,
597
 
                            dbus_interface=server_interface,
598
 
                            byte_arrays=True))
599
 
        (self.mandos_serv
600
 
         .connect_to_signal("ClientNotFound",
601
 
                            self.client_not_found,
602
 
                            dbus_interface=server_interface,
603
 
                            byte_arrays=True))
604
 
        for path, client in mandos_clients.items():
605
 
            client_proxy_object = self.bus.get_object(self.busname,
606
 
                                                      path)
607
 
            self.add_client(MandosClientWidget(server_proxy_object
608
 
                                               =self.mandos_serv,
609
 
                                               proxy_object
610
 
                                               =client_proxy_object,
611
 
                                               properties=client,
612
 
                                               update_hook
613
 
                                               =self.refresh,
614
 
                                               delete_hook
615
 
                                               =self.remove_client,
616
 
                                               logger
617
 
                                               =self.log_message),
618
 
                            path=path)
619
 
        
620
652
        self.refresh()
621
653
        self._input_callback_tag = (gobject.io_add_watch
622
654
                                    (sys.stdin.fileno(),
654
686
            elif key == "window resize":
655
687
                self.size = self.screen.get_cols_rows()
656
688
                self.refresh()
657
 
            elif key == "ctrl l":
658
 
                self.screen.clear()
 
689
            elif key == "\f":  # Ctrl-L
659
690
                self.refresh()
660
691
            elif key == "l" or key == "D":
661
692
                self.toggle_log_display()
673
704
                                            "?: Help",
674
705
                                            "l: Log window toggle",
675
706
                                            "TAB: Switch window",
676
 
                                            "w: Wrap (log lines)",
677
 
                                            "v: Toggle verbose log",
678
 
                                            ))))
 
707
                                            "w: Wrap (log)"))))
679
708
                self.log_message_raw(("bold",
680
709
                                      "  "
681
710
                                      .join(("Clients:",
694
723
                else:
695
724
                    self.topwidget.set_focus(self.logbox)
696
725
                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")
704
726
            #elif (key == "end" or key == "meta >" or key == "G"
705
727
            #      or key == ">"):
706
728
            #    pass            # xxx end-of-buffer
729
751
    ui.run()
730
752
except KeyboardInterrupt:
731
753
    ui.screen.stop()
732
 
except Exception as e:
733
 
    ui.log_message(str(e))
 
754
except Exception, e:
 
755
    ui.log_message(unicode(e))
734
756
    ui.screen.stop()
735
757
    raise