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  • Committer: Teddy Hogeborn
  • Date: 2012-05-12 19:29:05 UTC
  • Revision ID: teddy@recompile.se-20120512192905-8icx7a55j0o7o70n
* mandos (Client.runtime_expansions): Add "expires" and (bug fix)
                                      "last_approval_request".
  (main): Don't ignore SIGINT.
* mandos-clients.conf.xml (RUNTIME EXPANSION): Added "expires".

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mandos-monitor
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#     GNU General Public License for more details.
18
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# 
19
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# 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
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# 
22
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# Contact the authors at <mandos@recompile.se>.
23
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# 
25
26
from __future__ import (division, absolute_import, print_function,
26
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                        unicode_literals)
27
28
 
 
29
from future_builtins import *
 
30
 
28
31
import sys
29
32
import os
30
33
import signal
52
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domain = 'se.recompile'
53
56
server_interface = domain + '.Mandos'
54
57
client_interface = domain + '.Mandos.Client'
55
 
version = "1.4.1"
 
58
version = "1.5.3"
56
59
 
57
60
# Always run in monochrome mode
58
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urwid.curses_display.curses.has_colors = lambda : False
83
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    properties and calls a hook function when any of them are
84
87
    changed.
85
88
    """
86
 
    def __init__(self, proxy_object=None, *args, **kwargs):
 
89
    def __init__(self, proxy_object=None, properties=None, **kwargs):
87
90
        self.proxy = proxy_object # Mandos Client proxy object
88
 
        
89
 
        self.properties = dict()
 
91
        self.properties = dict() if properties is None else properties
90
92
        self.property_changed_match = (
91
93
            self.proxy.connect_to_signal("PropertyChanged",
92
 
                                         self.property_changed,
 
94
                                         self._property_changed,
93
95
                                         client_interface,
94
96
                                         byte_arrays=True))
95
97
        
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)
 
98
        if properties is None:
 
99
            self.properties.update(
 
100
                self.proxy.GetAll(client_interface,
 
101
                                  dbus_interface
 
102
                                  = dbus.PROPERTIES_IFACE))
 
103
        
 
104
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
105
    
 
106
    def _property_changed(self, property, value):
 
107
        """Helper which takes positional arguments"""
 
108
        return self.property_changed(property=property, value=value)
103
109
    
104
110
    def property_changed(self, property=None, value=None):
105
111
        """This is called whenever we get a PropertyChanged signal
108
114
        # Update properties dict with new value
109
115
        self.properties[property] = value
110
116
    
111
 
    def delete(self, *args, **kwargs):
 
117
    def delete(self):
112
118
        self.property_changed_match.remove()
113
 
        super(MandosClientPropertyCache, self).__init__(
114
 
            *args, **kwargs)
115
119
 
116
120
 
117
121
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
119
123
    """
120
124
    
121
125
    def __init__(self, server_proxy_object=None, update_hook=None,
122
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
126
                 delete_hook=None, logger=None, **kwargs):
123
127
        # Called on update
124
128
        self.update_hook = update_hook
125
129
        # Called on delete
130
134
        self.logger = logger
131
135
        
132
136
        self._update_timer_callback_tag = None
133
 
        self._update_timer_callback_lock = 0
134
 
        self.last_checker_failed = False
135
137
        
136
138
        # The widget shown normally
137
139
        self._text_widget = urwid.Text("")
138
140
        # The widget shown when we have focus
139
141
        self._focus_text_widget = urwid.Text("")
140
 
        super(MandosClientWidget, self).__init__(
141
 
            update_hook=update_hook, delete_hook=delete_hook,
142
 
            *args, **kwargs)
 
142
        super(MandosClientWidget, self).__init__(**kwargs)
143
143
        self.update()
144
144
        self.opened = False
145
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
 
        
164
146
        self.match_objects = (
165
147
            self.proxy.connect_to_signal("CheckerCompleted",
166
148
                                         self.checker_completed,
182
164
                                         self.rejected,
183
165
                                         client_interface,
184
166
                                         byte_arrays=True))
185
 
        #self.logger('Created client %s' % (self.properties["Name"]))
 
167
        #self.logger('Created client {0}'
 
168
        #            .format(self.properties["Name"]))
186
169
    
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
170
    def using_timer(self, flag):
194
171
        """Call this method with True or False when timer should be
195
172
        activated or deactivated.
196
173
        """
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:
 
174
        if flag and self._update_timer_callback_tag is None:
203
175
            # Will update the shown timer value every second
204
176
            self._update_timer_callback_tag = (gobject.timeout_add
205
177
                                               (1000,
206
178
                                                self.update_timer))
207
 
        elif old and self._update_timer_callback_lock == 0:
 
179
        elif not (flag or self._update_timer_callback_tag is None):
208
180
            gobject.source_remove(self._update_timer_callback_tag)
209
181
            self._update_timer_callback_tag = None
210
182
    
211
183
    def checker_completed(self, exitstatus, condition, command):
212
184
        if exitstatus == 0:
213
 
            if self.last_checker_failed:
214
 
                self.last_checker_failed = False
215
 
                self.using_timer(False)
216
 
            #self.logger('Checker for client %s (command "%s")'
217
 
            #            ' was successful'
218
 
            #            % (self.properties["Name"], command))
219
185
            self.update()
220
186
            return
221
187
        # Checker failed
222
 
        if not self.last_checker_failed:
223
 
            self.last_checker_failed = True
224
 
            self.using_timer(True)
225
188
        if os.WIFEXITED(condition):
226
 
            self.logger('Checker for client %s (command "%s")'
227
 
                        ' failed with exit code %s'
228
 
                        % (self.properties["Name"], command,
229
 
                           os.WEXITSTATUS(condition)))
 
189
            self.logger('Checker for client {0} (command "{1}")'
 
190
                        ' failed with exit code {2}'
 
191
                        .format(self.properties["Name"], command,
 
192
                                os.WEXITSTATUS(condition)))
230
193
        elif os.WIFSIGNALED(condition):
231
 
            self.logger('Checker for client %s (command "%s")'
232
 
                        ' was killed by signal %s'
233
 
                        % (self.properties["Name"], command,
234
 
                           os.WTERMSIG(condition)))
 
194
            self.logger('Checker for client {0} (command "{1}") was'
 
195
                        ' killed by signal {2}'
 
196
                        .format(self.properties["Name"], command,
 
197
                                os.WTERMSIG(condition)))
235
198
        elif os.WCOREDUMP(condition):
236
 
            self.logger('Checker for client %s (command "%s")'
 
199
            self.logger('Checker for client {0} (command "{1}")'
237
200
                        ' dumped core'
238
 
                        % (self.properties["Name"], command))
 
201
                        .format(self.properties["Name"], command))
239
202
        else:
240
 
            self.logger('Checker for client %s completed'
241
 
                        ' mysteriously')
 
203
            self.logger('Checker for client {0} completed'
 
204
                        ' mysteriously'
 
205
                        .format(self.properties["Name"]))
242
206
        self.update()
243
207
    
244
208
    def checker_started(self, command):
245
209
        """Server signals that a checker started. This could be useful
246
210
           to log in the future. """
247
 
        #self.logger('Client %s started checker "%s"'
248
 
        #            % (self.properties["Name"], unicode(command)))
 
211
        #self.logger('Client {0} started checker "{1}"'
 
212
        #            .format(self.properties["Name"],
 
213
        #                    unicode(command)))
249
214
        pass
250
215
    
251
216
    def got_secret(self):
252
 
        self.last_checker_failed = False
253
 
        self.logger('Client %s received its secret'
254
 
                    % self.properties["Name"])
 
217
        self.logger('Client {0} received its secret'
 
218
                    .format(self.properties["Name"]))
255
219
    
256
220
    def need_approval(self, timeout, default):
257
221
        if not default:
258
 
            message = 'Client %s needs approval within %s seconds'
 
222
            message = 'Client {0} needs approval within {1} seconds'
259
223
        else:
260
 
            message = 'Client %s will get its secret in %s seconds'
261
 
        self.logger(message
262
 
                    % (self.properties["Name"], timeout/1000))
263
 
        self.using_timer(True)
 
224
            message = 'Client {0} will get its secret in {1} seconds'
 
225
        self.logger(message.format(self.properties["Name"],
 
226
                                   timeout/1000))
264
227
    
265
228
    def rejected(self, reason):
266
 
        self.logger('Client %s was rejected; reason: %s'
267
 
                    % (self.properties["Name"], reason))
 
229
        self.logger('Client {0} was rejected; reason: {1}'
 
230
                    .format(self.properties["Name"], reason))
268
231
    
269
232
    def selectable(self):
270
233
        """Make this a "selectable" widget.
292
255
                          "bold-underline-blink":
293
256
                              "bold-underline-blink-standout",
294
257
                          }
295
 
 
 
258
        
296
259
        # Rebuild focus and non-focus widgets using current properties
297
 
 
 
260
        
298
261
        # Base part of a client. Name!
299
 
        base = ('%(name)s: '
300
 
                      % {"name": self.properties["Name"]})
 
262
        base = '{name}: '.format(name=self.properties["Name"])
301
263
        if not self.properties["Enabled"]:
302
264
            message = "DISABLED"
 
265
            self.using_timer(False)
303
266
        elif self.properties["ApprovalPending"]:
304
267
            timeout = datetime.timedelta(milliseconds
305
268
                                         = self.properties
307
270
            last_approval_request = isoformat_to_datetime(
308
271
                self.properties["LastApprovalRequest"])
309
272
            if last_approval_request is not None:
310
 
                timer = timeout - (datetime.datetime.utcnow()
311
 
                                   - last_approval_request)
 
273
                timer = max(timeout - (datetime.datetime.utcnow()
 
274
                                       - last_approval_request),
 
275
                            datetime.timedelta())
312
276
            else:
313
277
                timer = datetime.timedelta()
314
278
            if self.properties["ApprovedByDefault"]:
315
 
                message = "Approval in %s. (d)eny?"
 
279
                message = "Approval in {0}. (d)eny?"
316
280
            else:
317
 
                message = "Denial in %s. (a)pprove?"
318
 
            message = message % unicode(timer).rsplit(".", 1)[0]
319
 
        elif self.last_checker_failed:
320
 
            # When checker has failed, print a timer until client expires
 
281
                message = "Denial in {0}. (a)pprove?"
 
282
            message = message.format(unicode(timer).rsplit(".", 1)[0])
 
283
            self.using_timer(True)
 
284
        elif self.properties["LastCheckerStatus"] != 0:
 
285
            # When checker has failed, show timer until client expires
321
286
            expires = self.properties["Expires"]
322
287
            if expires == "":
323
288
                timer = datetime.timedelta(0)
324
289
            else:
325
 
                expires = datetime.datetime.strptime(expires,
326
 
                                                     '%Y-%m-%dT%H:%M:%S.%f')
327
 
                timer = expires - datetime.datetime.utcnow()
 
290
                expires = (datetime.datetime.strptime
 
291
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
292
                timer = max(expires - datetime.datetime.utcnow(),
 
293
                            datetime.timedelta())
328
294
            message = ('A checker has failed! Time until client'
329
 
                       ' gets disabled: %s'
330
 
                           % unicode(timer).rsplit(".", 1)[0])
 
295
                       ' gets disabled: {0}'
 
296
                       .format(unicode(timer).rsplit(".", 1)[0]))
 
297
            self.using_timer(True)
331
298
        else:
332
299
            message = "enabled"
333
 
        self._text = "%s%s" % (base, message)
334
 
            
 
300
            self.using_timer(False)
 
301
        self._text = "{0}{1}".format(base, message)
 
302
        
335
303
        if not urwid.supports_unicode():
336
304
            self._text = self._text.encode("ascii", "replace")
337
305
        textlist = [("normal", self._text)]
354
322
        self.update()
355
323
        return True             # Keep calling this
356
324
    
357
 
    def delete(self, *args, **kwargs):
 
325
    def delete(self, **kwargs):
358
326
        if self._update_timer_callback_tag is not None:
359
327
            gobject.source_remove(self._update_timer_callback_tag)
360
328
            self._update_timer_callback_tag = None
363
331
        self.match_objects = ()
364
332
        if self.delete_hook is not None:
365
333
            self.delete_hook(self)
366
 
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
334
        return super(MandosClientWidget, self).delete(**kwargs)
367
335
    
368
336
    def render(self, maxcolrow, focus=False):
369
337
        """Render differently if we have focus.
411
379
        else:
412
380
            return key
413
381
    
414
 
    def property_changed(self, property=None, value=None,
415
 
                         *args, **kwargs):
 
382
    def property_changed(self, property=None, **kwargs):
416
383
        """Call self.update() if old value is not new value.
417
384
        This overrides the method from MandosClientPropertyCache"""
418
385
        property_name = unicode(property)
419
386
        old_value = self.properties.get(property_name)
420
387
        super(MandosClientWidget, self).property_changed(
421
 
            property=property, value=value, *args, **kwargs)
 
388
            property=property, **kwargs)
422
389
        if self.properties.get(property_name) != old_value:
423
390
            self.update()
424
391
 
428
395
    "down" key presses, thus not allowing any containing widgets to
429
396
    use them as an excuse to shift focus away from this widget.
430
397
    """
431
 
    def keypress(self, maxcolrow, key):
432
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
398
    def keypress(self, *args, **kwargs):
 
399
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
433
400
        if ret in ("up", "down"):
434
401
            return
435
402
        return ret
501
468
        self.main_loop = gobject.MainLoop()
502
469
    
503
470
    def client_not_found(self, fingerprint, address):
504
 
        self.log_message(("Client with address %s and fingerprint %s"
505
 
                          " could not be found" % (address,
506
 
                                                    fingerprint)))
 
471
        self.log_message("Client with address {0} and fingerprint"
 
472
                         " {1} could not be found"
 
473
                         .format(address, fingerprint))
507
474
    
508
475
    def rebuild(self):
509
476
        """This rebuilds the User Interface.
562
529
            client = self.clients_dict[path]
563
530
        except KeyError:
564
531
            # not found?
565
 
            self.log_message("Unknown client %r (%r) removed", name,
566
 
                             path)
 
532
            self.log_message("Unknown client {0!r} ({1!r}) removed"
 
533
                             .format(name, path))
567
534
            return
568
535
        client.delete()
569
536
    
650
617
                                               logger
651
618
                                               =self.log_message),
652
619
                            path=path)
653
 
 
 
620
        
654
621
        self.refresh()
655
622
        self._input_callback_tag = (gobject.io_add_watch
656
623
                                    (sys.stdin.fileno(),