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  • Committer: Teddy Hogeborn
  • Date: 2011-04-02 06:37:18 UTC
  • Revision ID: teddy@fukt.bsnet.se-20110402063718-13ldrcuu0t33sdc4
* mandos: Tolerate restarting Avahi servers.  Also Changed to new
          "except x as y" exception syntax.
  (AvahiService.entry_group_state_changed_match): New; contains the
                                                  SignalMatch object.
  (AvahiService.remove): Really remove the group and the signal
                         connection, if any.
  (AvahiService.add): Always create a new group and signal connection.
  (AvahiService.cleanup): Changed to simply call remove().
  (AvahiService.server_state_changed): Handle and log more bad states.
  (AvahiService.activate): Set "follow_name_owner_changes=True" on the
                           Avahi Server proxy object.
  (ClientDBus.checked_ok): Do not return anything.
  (ClientDBus.CheckedOK): Do not return anything, as documented.
* mandos-monitor: Call D-Bus methods asynchronously.

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mandos-monitor
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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
 
# Contact the authors at <mandos@recompile.se>.
 
22
# Contact the authors at <mandos@fukt.bsnet.se>.
24
23
# 
25
24
 
26
 
from __future__ import (division, absolute_import, print_function,
27
 
                        unicode_literals)
28
 
try:
29
 
    from future_builtins import *
30
 
except ImportError:
31
 
    pass
 
25
from __future__ import division, absolute_import, print_function, unicode_literals
32
26
 
33
27
import sys
34
28
import os
 
29
import signal
35
30
 
36
31
import datetime
37
32
 
39
34
import urwid
40
35
 
41
36
from dbus.mainloop.glib import DBusGMainLoop
42
 
try:
43
 
    import gobject
44
 
except ImportError:
45
 
    from gi.repository import GObject as gobject
 
37
import gobject
46
38
 
47
39
import dbus
48
40
 
 
41
import UserList
 
42
 
49
43
import locale
50
44
 
51
 
if sys.version_info.major == 2:
52
 
    str = unicode
53
 
 
54
45
locale.setlocale(locale.LC_ALL, '')
55
46
 
56
47
import logging
57
48
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
58
49
 
59
50
# Some useful constants
60
 
domain = 'se.recompile'
 
51
domain = 'se.bsnet.fukt'
61
52
server_interface = domain + '.Mandos'
62
53
client_interface = domain + '.Mandos.Client'
63
 
version = "1.6.9"
 
54
version = "1.3.0"
 
55
 
 
56
# Always run in monochrome mode
 
57
urwid.curses_display.curses.has_colors = lambda : False
 
58
 
 
59
# Urwid doesn't support blinking, but we want it.  Since we have no
 
60
# use for underline on its own, we make underline also always blink.
 
61
urwid.curses_display.curses.A_UNDERLINE |= (
 
62
    urwid.curses_display.curses.A_BLINK)
64
63
 
65
64
def isoformat_to_datetime(iso):
66
65
    "Parse an ISO 8601 date string to a datetime.datetime()"
83
82
    properties and calls a hook function when any of them are
84
83
    changed.
85
84
    """
86
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
85
    def __init__(self, proxy_object=None, *args, **kwargs):
87
86
        self.proxy = proxy_object # Mandos Client proxy object
88
 
        self.properties = dict() if properties is None else properties
89
 
        self.property_changed_match = (
90
 
            self.proxy.connect_to_signal("PropertiesChanged",
91
 
                                         self.properties_changed,
92
 
                                         dbus.PROPERTIES_IFACE,
93
 
                                         byte_arrays=True))
94
 
        
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)
 
87
        
 
88
        self.properties = dict()
 
89
        self.proxy.connect_to_signal("PropertyChanged",
 
90
                                     self.property_changed,
 
91
                                     client_interface,
 
92
                                     byte_arrays=True)
 
93
        
 
94
        self.properties.update(
 
95
            self.proxy.GetAll(client_interface,
 
96
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
97
 
 
98
        #XXX This break good super behaviour!
 
99
#        super(MandosClientPropertyCache, self).__init__(
 
100
#            *args, **kwargs)
102
101
    
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.
 
102
    def property_changed(self, property=None, value=None):
 
103
        """This is called whenever we get a PropertyChanged signal
 
104
        It updates the changed property in the "properties" dict.
106
105
        """
107
106
        # Update properties dict with new value
108
 
        self.properties.update(properties)
109
 
    
110
 
    def delete(self):
111
 
        self.property_changed_match.remove()
 
107
        self.properties[property] = value
112
108
 
113
109
 
114
110
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
116
112
    """
117
113
    
118
114
    def __init__(self, server_proxy_object=None, update_hook=None,
119
 
                 delete_hook=None, logger=None, **kwargs):
 
115
                 delete_hook=None, logger=None, *args, **kwargs):
120
116
        # Called on update
121
117
        self.update_hook = update_hook
122
118
        # Called on delete
127
123
        self.logger = logger
128
124
        
129
125
        self._update_timer_callback_tag = None
 
126
        self._update_timer_callback_lock = 0
 
127
        self.last_checker_failed = False
130
128
        
131
129
        # The widget shown normally
132
130
        self._text_widget = urwid.Text("")
133
131
        # The widget shown when we have focus
134
132
        self._focus_text_widget = urwid.Text("")
135
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
133
        super(MandosClientWidget, self).__init__(
 
134
            update_hook=update_hook, delete_hook=delete_hook,
 
135
            *args, **kwargs)
136
136
        self.update()
137
137
        self.opened = False
138
138
        
139
 
        self.match_objects = (
140
 
            self.proxy.connect_to_signal("CheckerCompleted",
141
 
                                         self.checker_completed,
142
 
                                         client_interface,
143
 
                                         byte_arrays=True),
144
 
            self.proxy.connect_to_signal("CheckerStarted",
145
 
                                         self.checker_started,
146
 
                                         client_interface,
147
 
                                         byte_arrays=True),
148
 
            self.proxy.connect_to_signal("GotSecret",
149
 
                                         self.got_secret,
150
 
                                         client_interface,
151
 
                                         byte_arrays=True),
152
 
            self.proxy.connect_to_signal("NeedApproval",
153
 
                                         self.need_approval,
154
 
                                         client_interface,
155
 
                                         byte_arrays=True),
156
 
            self.proxy.connect_to_signal("Rejected",
157
 
                                         self.rejected,
158
 
                                         client_interface,
159
 
                                         byte_arrays=True))
160
 
        self.logger('Created client {}'
161
 
                    .format(self.properties["Name"]), level=0)
 
139
        last_checked_ok = isoformat_to_datetime(self.properties
 
140
                                                ["LastCheckedOK"])
 
141
        if last_checked_ok is None:
 
142
            self.last_checker_failed = True
 
143
        else:
 
144
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
145
                                         - last_checked_ok)
 
146
                                        > datetime.timedelta
 
147
                                        (milliseconds=
 
148
                                         self.properties
 
149
                                         ["Interval"]))
 
150
        
 
151
        if self.last_checker_failed:
 
152
            self.using_timer(True)
 
153
        
 
154
        if self.need_approval:
 
155
            self.using_timer(True)
 
156
        
 
157
        self.proxy.connect_to_signal("CheckerCompleted",
 
158
                                     self.checker_completed,
 
159
                                     client_interface,
 
160
                                     byte_arrays=True)
 
161
        self.proxy.connect_to_signal("CheckerStarted",
 
162
                                     self.checker_started,
 
163
                                     client_interface,
 
164
                                     byte_arrays=True)
 
165
        self.proxy.connect_to_signal("GotSecret",
 
166
                                     self.got_secret,
 
167
                                     client_interface,
 
168
                                     byte_arrays=True)
 
169
        self.proxy.connect_to_signal("NeedApproval",
 
170
                                     self.need_approval,
 
171
                                     client_interface,
 
172
                                     byte_arrays=True)
 
173
        self.proxy.connect_to_signal("Rejected",
 
174
                                     self.rejected,
 
175
                                     client_interface,
 
176
                                     byte_arrays=True)
162
177
    
 
178
    def property_changed(self, property=None, value=None):
 
179
        super(self, MandosClientWidget).property_changed(property,
 
180
                                                         value)
 
181
        if property == "ApprovalPending":
 
182
            using_timer(bool(value))
 
183
        
163
184
    def using_timer(self, flag):
164
185
        """Call this method with True or False when timer should be
165
186
        activated or deactivated.
166
187
        """
167
 
        if flag and self._update_timer_callback_tag is None:
168
 
            # Will update the shown timer value every second
 
188
        old = self._update_timer_callback_lock
 
189
        if flag:
 
190
            self._update_timer_callback_lock += 1
 
191
        else:
 
192
            self._update_timer_callback_lock -= 1
 
193
        if old == 0 and self._update_timer_callback_lock:
169
194
            self._update_timer_callback_tag = (gobject.timeout_add
170
195
                                               (1000,
171
196
                                                self.update_timer))
172
 
        elif not (flag or self._update_timer_callback_tag is None):
 
197
        elif old and self._update_timer_callback_lock == 0:
173
198
            gobject.source_remove(self._update_timer_callback_tag)
174
199
            self._update_timer_callback_tag = None
175
200
    
176
 
    def checker_completed(self, exitstatus, signal, command):
 
201
    def checker_completed(self, exitstatus, condition, command):
177
202
        if exitstatus == 0:
178
 
            self.logger('Checker for client {} (command "{}")'
179
 
                        ' succeeded'.format(self.properties["Name"],
180
 
                                            command), level=0)
 
203
            if self.last_checker_failed:
 
204
                self.last_checker_failed = False
 
205
                self.using_timer(False)
 
206
            #self.logger('Checker for client %s (command "%s")'
 
207
            #            ' was successful'
 
208
            #            % (self.properties["Name"], command))
181
209
            self.update()
182
210
            return
183
211
        # 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))
 
212
        if not self.last_checker_failed:
 
213
            self.last_checker_failed = True
 
214
            self.using_timer(True)
 
215
        if os.WIFEXITED(condition):
 
216
            self.logger('Checker for client %s (command "%s")'
 
217
                        ' failed with exit code %s'
 
218
                        % (self.properties["Name"], command,
 
219
                           os.WEXITSTATUS(condition)))
 
220
        elif os.WIFSIGNALED(condition):
 
221
            self.logger('Checker for client %s (command "%s")'
 
222
                        ' was killed by signal %s'
 
223
                        % (self.properties["Name"], command,
 
224
                           os.WTERMSIG(condition)))
 
225
        elif os.WCOREDUMP(condition):
 
226
            self.logger('Checker for client %s (command "%s")'
 
227
                        ' dumped core'
 
228
                        % (self.properties["Name"], command))
194
229
        else:
195
 
            self.logger('Checker for client {} completed'
196
 
                        ' mysteriously'
197
 
                        .format(self.properties["Name"]))
 
230
            self.logger('Checker for client %s completed'
 
231
                        ' mysteriously')
198
232
        self.update()
199
233
    
200
234
    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)
 
235
        #self.logger('Client %s started checker "%s"'
 
236
        #            % (self.properties["Name"], unicode(command)))
 
237
        pass
205
238
    
206
239
    def got_secret(self):
207
 
        self.logger('Client {} received its secret'
208
 
                    .format(self.properties["Name"]))
 
240
        self.last_checker_failed = False
 
241
        self.logger('Client %s received its secret'
 
242
                    % self.properties["Name"])
209
243
    
210
244
    def need_approval(self, timeout, default):
211
245
        if not default:
212
 
            message = 'Client {} needs approval within {} seconds'
 
246
            message = 'Client %s needs approval within %s seconds'
213
247
        else:
214
 
            message = 'Client {} will get its secret in {} seconds'
215
 
        self.logger(message.format(self.properties["Name"],
216
 
                                   timeout/1000))
 
248
            message = 'Client %s will get its secret in %s seconds'
 
249
        self.logger(message
 
250
                    % (self.properties["Name"], timeout/1000))
 
251
        self.using_timer(True)
217
252
    
218
253
    def rejected(self, reason):
219
 
        self.logger('Client {} was rejected; reason: {}'
220
 
                    .format(self.properties["Name"], reason))
 
254
        self.logger('Client %s was rejected; reason: %s'
 
255
                    % (self.properties["Name"], reason))
221
256
    
222
257
    def selectable(self):
223
258
        """Make this a "selectable" widget.
245
280
                          "bold-underline-blink":
246
281
                              "bold-underline-blink-standout",
247
282
                          }
248
 
        
 
283
 
249
284
        # Rebuild focus and non-focus widgets using current properties
250
 
        
 
285
 
251
286
        # Base part of a client. Name!
252
 
        base = '{name}: '.format(name=self.properties["Name"])
 
287
        base = ('%(name)s: '
 
288
                      % {"name": self.properties["Name"]})
253
289
        if not self.properties["Enabled"]:
254
290
            message = "DISABLED"
255
 
            self.using_timer(False)
256
291
        elif self.properties["ApprovalPending"]:
257
292
            timeout = datetime.timedelta(milliseconds
258
293
                                         = self.properties
260
295
            last_approval_request = isoformat_to_datetime(
261
296
                self.properties["LastApprovalRequest"])
262
297
            if last_approval_request is not None:
263
 
                timer = max(timeout - (datetime.datetime.utcnow()
264
 
                                       - last_approval_request),
265
 
                            datetime.timedelta())
 
298
                timer = timeout - (datetime.datetime.utcnow()
 
299
                                   - last_approval_request)
266
300
            else:
267
301
                timer = datetime.timedelta()
268
302
            if self.properties["ApprovedByDefault"]:
269
 
                message = "Approval in {}. (d)eny?"
270
 
            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
276
 
            expires = self.properties["Expires"]
277
 
            if expires == "":
278
 
                timer = datetime.timedelta(0)
279
 
            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())
 
303
                message = "Approval in %s. (d)eny?"
 
304
            else:
 
305
                message = "Denial in %s. (a)pprove?"
 
306
            message = message % unicode(timer).rsplit(".", 1)[0]
 
307
        elif self.last_checker_failed:
 
308
            timeout = datetime.timedelta(milliseconds
 
309
                                         = self.properties
 
310
                                         ["Timeout"])
 
311
            last_ok = isoformat_to_datetime(
 
312
                max((self.properties["LastCheckedOK"]
 
313
                     or self.properties["Created"]),
 
314
                    self.properties["LastEnabled"]))
 
315
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
284
316
            message = ('A checker has failed! Time until client'
285
 
                       ' gets disabled: {}'
286
 
                       .format(str(timer).rsplit(".", 1)[0]))
287
 
            self.using_timer(True)
 
317
                       ' gets disabled: %s'
 
318
                           % unicode(timer).rsplit(".", 1)[0])
288
319
        else:
289
320
            message = "enabled"
290
 
            self.using_timer(False)
291
 
        self._text = "{}{}".format(base, message)
292
 
        
 
321
        self._text = "%s%s" % (base, message)
 
322
            
293
323
        if not urwid.supports_unicode():
294
324
            self._text = self._text.encode("ascii", "replace")
295
325
        textlist = [("normal", self._text)]
307
337
            self.update_hook()
308
338
    
309
339
    def update_timer(self):
310
 
        """called by gobject. Will indefinitely loop until
311
 
        gobject.source_remove() on tag is called"""
 
340
        "called by gobject"
312
341
        self.update()
313
342
        return True             # Keep calling this
314
343
    
315
 
    def delete(self, **kwargs):
 
344
    def delete(self):
316
345
        if self._update_timer_callback_tag is not None:
317
346
            gobject.source_remove(self._update_timer_callback_tag)
318
347
            self._update_timer_callback_tag = None
319
 
        for match in self.match_objects:
320
 
            match.remove()
321
 
        self.match_objects = ()
322
348
        if self.delete_hook is not None:
323
349
            self.delete_hook(self)
324
 
        return super(MandosClientWidget, self).delete(**kwargs)
325
350
    
326
351
    def render(self, maxcolrow, focus=False):
327
352
        """Render differently if we have focus.
369
394
        else:
370
395
            return key
371
396
    
372
 
    def properties_changed(self, interface, properties, invalidated):
373
 
        """Call self.update() if any properties changed.
 
397
    def property_changed(self, property=None, value=None,
 
398
                         *args, **kwargs):
 
399
        """Call self.update() if old value is not new value.
374
400
        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):
 
401
        property_name = unicode(property)
 
402
        old_value = self.properties.get(property_name)
 
403
        super(MandosClientWidget, self).property_changed(
 
404
            property=property, value=value, *args, **kwargs)
 
405
        if self.properties.get(property_name) != old_value:
381
406
            self.update()
382
407
 
383
408
 
386
411
    "down" key presses, thus not allowing any containing widgets to
387
412
    use them as an excuse to shift focus away from this widget.
388
413
    """
389
 
    def keypress(self, *args, **kwargs):
390
 
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
414
    def keypress(self, maxcolrow, key):
 
415
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
391
416
        if ret in ("up", "down"):
392
417
            return
393
418
        return ret
397
422
    """This is the entire user interface - the whole screen
398
423
    with boxes, lists of client widgets, etc.
399
424
    """
400
 
    def __init__(self, max_log_length=1000, log_level=1):
 
425
    def __init__(self, max_log_length=1000):
401
426
        DBusGMainLoop(set_as_default=True)
402
427
        
403
428
        self.screen = urwid.curses_display.Screen()
406
431
                ("normal",
407
432
                 "default", "default", None),
408
433
                ("bold",
409
 
                 "bold", "default", "bold"),
 
434
                 "default", "default", "bold"),
410
435
                ("underline-blink",
411
 
                 "underline,blink", "default", "underline,blink"),
 
436
                 "default", "default", "underline"),
412
437
                ("standout",
413
 
                 "standout", "default", "standout"),
 
438
                 "default", "default", "standout"),
414
439
                ("bold-underline-blink",
415
 
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
440
                 "default", "default", ("bold", "underline")),
416
441
                ("bold-standout",
417
 
                 "bold,standout", "default", "bold,standout"),
 
442
                 "default", "default", ("bold", "standout")),
418
443
                ("underline-blink-standout",
419
 
                 "underline,blink,standout", "default",
420
 
                 "underline,blink,standout"),
 
444
                 "default", "default", ("underline", "standout")),
421
445
                ("bold-underline-blink-standout",
422
 
                 "bold,underline,blink,standout", "default",
423
 
                 "bold,underline,blink,standout"),
 
446
                 "default", "default", ("bold", "underline",
 
447
                                          "standout")),
424
448
                ))
425
449
        
426
450
        if urwid.supports_unicode():
441
465
        self.log = []
442
466
        self.max_log_length = max_log_length
443
467
        
444
 
        self.log_level = log_level
445
 
        
446
468
        # We keep a reference to the log widget so we can remove it
447
469
        # from the ListWalker without it getting destroyed
448
470
        self.logbox = ConstrainedListBox(self.log)
460
482
        
461
483
        self.busname = domain + '.Mandos'
462
484
        self.main_loop = gobject.MainLoop()
 
485
        self.bus = dbus.SystemBus()
 
486
        mandos_dbus_objc = self.bus.get_object(
 
487
            self.busname, "/", follow_name_owner_changes=True)
 
488
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
489
                                          dbus_interface
 
490
                                          = server_interface)
 
491
        try:
 
492
            mandos_clients = (self.mandos_serv
 
493
                              .GetAllClientsWithProperties())
 
494
        except dbus.exceptions.DBusException:
 
495
            mandos_clients = dbus.Dictionary()
 
496
        
 
497
        (self.mandos_serv
 
498
         .connect_to_signal("ClientRemoved",
 
499
                            self.find_and_remove_client,
 
500
                            dbus_interface=server_interface,
 
501
                            byte_arrays=True))
 
502
        (self.mandos_serv
 
503
         .connect_to_signal("ClientAdded",
 
504
                            self.add_new_client,
 
505
                            dbus_interface=server_interface,
 
506
                            byte_arrays=True))
 
507
        (self.mandos_serv
 
508
         .connect_to_signal("ClientNotFound",
 
509
                            self.client_not_found,
 
510
                            dbus_interface=server_interface,
 
511
                            byte_arrays=True))
 
512
        for path, client in mandos_clients.iteritems():
 
513
            client_proxy_object = self.bus.get_object(self.busname,
 
514
                                                      path)
 
515
            self.add_client(MandosClientWidget(server_proxy_object
 
516
                                               =self.mandos_serv,
 
517
                                               proxy_object
 
518
                                               =client_proxy_object,
 
519
                                               properties=client,
 
520
                                               update_hook
 
521
                                               =self.refresh,
 
522
                                               delete_hook
 
523
                                               =self.remove_client,
 
524
                                               logger
 
525
                                               =self.log_message),
 
526
                            path=path)
463
527
    
464
528
    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))
 
529
        self.log_message(("Client with address %s and fingerprint %s"
 
530
                          " could not be found" % (address,
 
531
                                                    fingerprint)))
468
532
    
469
533
    def rebuild(self):
470
534
        """This rebuilds the User Interface.
480
544
                                                     self.divider)))
481
545
        if self.log_visible:
482
546
            self.uilist.append(self.logbox)
 
547
            pass
483
548
        self.topwidget = urwid.Pile(self.uilist)
484
549
    
485
 
    def log_message(self, message, level=1):
486
 
        """Log message formatted with timestamp"""
487
 
        if level < self.log_level:
488
 
            return
 
550
    def log_message(self, message):
489
551
        timestamp = datetime.datetime.now().isoformat()
490
 
        self.log_message_raw("{}: {}".format(timestamp, message),
491
 
                             level=level)
 
552
        self.log_message_raw(timestamp + ": " + message)
492
553
    
493
 
    def log_message_raw(self, markup, level=1):
 
554
    def log_message_raw(self, markup):
494
555
        """Add a log message to the log buffer."""
495
 
        if level < self.log_level:
496
 
            return
497
556
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
498
557
        if (self.max_log_length
499
558
            and len(self.log) > self.max_log_length):
506
565
        """Toggle visibility of the log buffer."""
507
566
        self.log_visible = not self.log_visible
508
567
        self.rebuild()
509
 
        self.log_message("Log visibility changed to: {}"
510
 
                         .format(self.log_visible), level=0)
 
568
        #self.log_message("Log visibility changed to: "
 
569
        #                 + unicode(self.log_visible))
511
570
    
512
571
    def change_log_display(self):
513
572
        """Change type of log display.
518
577
            self.log_wrap = "clip"
519
578
        for textwidget in self.log:
520
579
            textwidget.set_wrap_mode(self.log_wrap)
521
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
522
 
                         level=0)
 
580
        #self.log_message("Wrap mode: " + self.log_wrap)
523
581
    
524
582
    def find_and_remove_client(self, path, name):
525
 
        """Find a client by its object path and remove it.
 
583
        """Find an client from its object path and remove it.
526
584
        
527
585
        This is connected to the ClientRemoved signal from the
528
586
        Mandos server object."""
530
588
            client = self.clients_dict[path]
531
589
        except KeyError:
532
590
            # not found?
533
 
            self.log_message("Unknown client {!r} ({!r}) removed"
534
 
                             .format(name, path))
535
591
            return
536
 
        client.delete()
 
592
        self.remove_client(client, path)
537
593
    
538
594
    def add_new_client(self, path):
539
595
        client_proxy_object = self.bus.get_object(self.busname, path)
554
610
        if path is None:
555
611
            path = client.proxy.object_path
556
612
        self.clients_dict[path] = client
557
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
613
        self.clients.sort(None, lambda c: c.properties["Name"])
558
614
        self.refresh()
559
615
    
560
616
    def remove_client(self, client, path=None):
562
618
        if path is None:
563
619
            path = client.proxy.object_path
564
620
        del self.clients_dict[path]
 
621
        if not self.clients_dict:
 
622
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
623
            # is completely emptied, we need to recreate it.
 
624
            self.clients = urwid.SimpleListWalker([])
 
625
            self.rebuild()
565
626
        self.refresh()
566
627
    
567
628
    def refresh(self):
571
632
    
572
633
    def run(self):
573
634
        """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
635
        self.refresh()
621
636
        self._input_callback_tag = (gobject.io_add_watch
622
637
                                    (sys.stdin.fileno(),
654
669
            elif key == "window resize":
655
670
                self.size = self.screen.get_cols_rows()
656
671
                self.refresh()
657
 
            elif key == "ctrl l":
658
 
                self.screen.clear()
 
672
            elif key == "\f":  # Ctrl-L
659
673
                self.refresh()
660
674
            elif key == "l" or key == "D":
661
675
                self.toggle_log_display()
673
687
                                            "?: Help",
674
688
                                            "l: Log window toggle",
675
689
                                            "TAB: Switch window",
676
 
                                            "w: Wrap (log lines)",
677
 
                                            "v: Toggle verbose log",
678
 
                                            ))))
 
690
                                            "w: Wrap (log)"))))
679
691
                self.log_message_raw(("bold",
680
692
                                      "  "
681
693
                                      .join(("Clients:",
694
706
                else:
695
707
                    self.topwidget.set_focus(self.logbox)
696
708
                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
709
            #elif (key == "end" or key == "meta >" or key == "G"
705
710
            #      or key == ">"):
706
711
            #    pass            # xxx end-of-buffer
729
734
    ui.run()
730
735
except KeyboardInterrupt:
731
736
    ui.screen.stop()
732
 
except Exception as e:
733
 
    ui.log_message(str(e))
 
737
except Exception, e:
 
738
    ui.log_message(unicode(e))
734
739
    ui.screen.stop()
735
740
    raise