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* plugin-runner.c: Comment change.

* plugins.d/mandos-client.c: Comment changes.
  (quit_now): New global flag.
  (handle_sigterm): Only call avahi_simple_poll_quit once.
  (main): Also handle SIGINT and SIGHUP.

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1
 
#!/usr/bin/python
2
 
# -*- mode: python; coding: utf-8 -*-
3
 
4
 
# Mandos Monitor - Control and monitor the Mandos server
5
 
6
 
# Copyright © 2009-2014 Teddy Hogeborn
7
 
# Copyright © 2009-2014 Björn Påhlsson
8
 
9
 
# This program is free software: you can redistribute it and/or modify
10
 
# it under the terms of the GNU General Public License as published by
11
 
# the Free Software Foundation, either version 3 of the License, or
12
 
# (at your option) any later version.
13
 
#
14
 
#     This program is distributed in the hope that it will be useful,
15
 
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
16
 
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
 
#     GNU General Public License for more details.
18
 
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/>.
22
 
23
 
# Contact the authors at <mandos@recompile.se>.
24
 
25
 
 
26
 
from __future__ import (division, absolute_import, print_function,
27
 
                        unicode_literals)
28
 
try:
29
 
    from future_builtins import *
30
 
except ImportError:
31
 
    pass
32
 
 
33
 
import sys
34
 
import os
35
 
 
36
 
import datetime
37
 
 
38
 
import urwid.curses_display
39
 
import urwid
40
 
 
41
 
from dbus.mainloop.glib import DBusGMainLoop
42
 
try:
43
 
    import gobject
44
 
except ImportError:
45
 
    from gi.repository import GObject as gobject
46
 
 
47
 
import dbus
48
 
 
49
 
import locale
50
 
 
51
 
if sys.version_info.major == 2:
52
 
    str = unicode
53
 
 
54
 
locale.setlocale(locale.LC_ALL, '')
55
 
 
56
 
import logging
57
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
58
 
 
59
 
# Some useful constants
60
 
domain = 'se.recompile'
61
 
server_interface = domain + '.Mandos'
62
 
client_interface = domain + '.Mandos.Client'
63
 
version = "1.6.7"
64
 
 
65
 
def isoformat_to_datetime(iso):
66
 
    "Parse an ISO 8601 date string to a datetime.datetime()"
67
 
    if not iso:
68
 
        return None
69
 
    d, t = iso.split("T", 1)
70
 
    year, month, day = d.split("-", 2)
71
 
    hour, minute, second = t.split(":", 2)
72
 
    second, fraction = divmod(float(second), 1)
73
 
    return datetime.datetime(int(year),
74
 
                             int(month),
75
 
                             int(day),
76
 
                             int(hour),
77
 
                             int(minute),
78
 
                             int(second),           # Whole seconds
79
 
                             int(fraction*1000000)) # Microseconds
80
 
 
81
 
class MandosClientPropertyCache(object):
82
 
    """This wraps a Mandos Client D-Bus proxy object, caches the
83
 
    properties and calls a hook function when any of them are
84
 
    changed.
85
 
    """
86
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
87
 
        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("PropertyChanged",
91
 
                                         self._property_changed,
92
 
                                         client_interface,
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)
102
 
    
103
 
    def _property_changed(self, property, value):
104
 
        """Helper which takes positional arguments"""
105
 
        return self.property_changed(property=property, value=value)
106
 
    
107
 
    def property_changed(self, property=None, value=None):
108
 
        """This is called whenever we get a PropertyChanged signal
109
 
        It updates the changed property in the "properties" dict.
110
 
        """
111
 
        # Update properties dict with new value
112
 
        self.properties[property] = value
113
 
    
114
 
    def delete(self):
115
 
        self.property_changed_match.remove()
116
 
 
117
 
 
118
 
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
119
 
    """A Mandos Client which is visible on the screen.
120
 
    """
121
 
    
122
 
    def __init__(self, server_proxy_object=None, update_hook=None,
123
 
                 delete_hook=None, logger=None, **kwargs):
124
 
        # Called on update
125
 
        self.update_hook = update_hook
126
 
        # Called on delete
127
 
        self.delete_hook = delete_hook
128
 
        # Mandos Server proxy object
129
 
        self.server_proxy_object = server_proxy_object
130
 
        # Logger
131
 
        self.logger = logger
132
 
        
133
 
        self._update_timer_callback_tag = None
134
 
        
135
 
        # The widget shown normally
136
 
        self._text_widget = urwid.Text("")
137
 
        # The widget shown when we have focus
138
 
        self._focus_text_widget = urwid.Text("")
139
 
        super(MandosClientWidget, self).__init__(**kwargs)
140
 
        self.update()
141
 
        self.opened = False
142
 
        
143
 
        self.match_objects = (
144
 
            self.proxy.connect_to_signal("CheckerCompleted",
145
 
                                         self.checker_completed,
146
 
                                         client_interface,
147
 
                                         byte_arrays=True),
148
 
            self.proxy.connect_to_signal("CheckerStarted",
149
 
                                         self.checker_started,
150
 
                                         client_interface,
151
 
                                         byte_arrays=True),
152
 
            self.proxy.connect_to_signal("GotSecret",
153
 
                                         self.got_secret,
154
 
                                         client_interface,
155
 
                                         byte_arrays=True),
156
 
            self.proxy.connect_to_signal("NeedApproval",
157
 
                                         self.need_approval,
158
 
                                         client_interface,
159
 
                                         byte_arrays=True),
160
 
            self.proxy.connect_to_signal("Rejected",
161
 
                                         self.rejected,
162
 
                                         client_interface,
163
 
                                         byte_arrays=True))
164
 
        self.logger('Created client {}'
165
 
                    .format(self.properties["Name"]), level=0)
166
 
    
167
 
    def using_timer(self, flag):
168
 
        """Call this method with True or False when timer should be
169
 
        activated or deactivated.
170
 
        """
171
 
        if flag and self._update_timer_callback_tag is None:
172
 
            # Will update the shown timer value every second
173
 
            self._update_timer_callback_tag = (gobject.timeout_add
174
 
                                               (1000,
175
 
                                                self.update_timer))
176
 
        elif not (flag or self._update_timer_callback_tag is None):
177
 
            gobject.source_remove(self._update_timer_callback_tag)
178
 
            self._update_timer_callback_tag = None
179
 
    
180
 
    def checker_completed(self, exitstatus, condition, command):
181
 
        if exitstatus == 0:
182
 
            self.logger('Checker for client {} (command "{}")'
183
 
                        ' succeeded'.format(self.properties["Name"],
184
 
                                            command), level=0)
185
 
            self.update()
186
 
            return
187
 
        # Checker failed
188
 
        if os.WIFEXITED(condition):
189
 
            self.logger('Checker for client {} (command "{}") failed'
190
 
                        ' with exit code {}'
191
 
                        .format(self.properties["Name"], command,
192
 
                                os.WEXITSTATUS(condition)))
193
 
        elif os.WIFSIGNALED(condition):
194
 
            self.logger('Checker for client {} (command "{}") was'
195
 
                        ' killed by signal {}'
196
 
                        .format(self.properties["Name"], command,
197
 
                                os.WTERMSIG(condition)))
198
 
        elif os.WCOREDUMP(condition):
199
 
            self.logger('Checker for client {} (command "{}") dumped'
200
 
                        ' core'.format(self.properties["Name"],
201
 
                                       command))
202
 
        else:
203
 
            self.logger('Checker for client {} completed'
204
 
                        ' mysteriously'
205
 
                        .format(self.properties["Name"]))
206
 
        self.update()
207
 
    
208
 
    def checker_started(self, command):
209
 
        """Server signals that a checker started."""
210
 
        self.logger('Client {} started checker "{}"'
211
 
                    .format(self.properties["Name"],
212
 
                            command), level=0)
213
 
    
214
 
    def got_secret(self):
215
 
        self.logger('Client {} received its secret'
216
 
                    .format(self.properties["Name"]))
217
 
    
218
 
    def need_approval(self, timeout, default):
219
 
        if not default:
220
 
            message = 'Client {} needs approval within {} seconds'
221
 
        else:
222
 
            message = 'Client {} will get its secret in {} seconds'
223
 
        self.logger(message.format(self.properties["Name"],
224
 
                                   timeout/1000))
225
 
    
226
 
    def rejected(self, reason):
227
 
        self.logger('Client {} was rejected; reason: {}'
228
 
                    .format(self.properties["Name"], reason))
229
 
    
230
 
    def selectable(self):
231
 
        """Make this a "selectable" widget.
232
 
        This overrides the method from urwid.FlowWidget."""
233
 
        return True
234
 
    
235
 
    def rows(self, maxcolrow, focus=False):
236
 
        """How many rows this widget will occupy might depend on
237
 
        whether we have focus or not.
238
 
        This overrides the method from urwid.FlowWidget"""
239
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
240
 
    
241
 
    def current_widget(self, focus=False):
242
 
        if focus or self.opened:
243
 
            return self._focus_widget
244
 
        return self._widget
245
 
    
246
 
    def update(self):
247
 
        "Called when what is visible on the screen should be updated."
248
 
        # How to add standout mode to a style
249
 
        with_standout = { "normal": "standout",
250
 
                          "bold": "bold-standout",
251
 
                          "underline-blink":
252
 
                              "underline-blink-standout",
253
 
                          "bold-underline-blink":
254
 
                              "bold-underline-blink-standout",
255
 
                          }
256
 
        
257
 
        # Rebuild focus and non-focus widgets using current properties
258
 
        
259
 
        # Base part of a client. Name!
260
 
        base = '{name}: '.format(name=self.properties["Name"])
261
 
        if not self.properties["Enabled"]:
262
 
            message = "DISABLED"
263
 
            self.using_timer(False)
264
 
        elif self.properties["ApprovalPending"]:
265
 
            timeout = datetime.timedelta(milliseconds
266
 
                                         = self.properties
267
 
                                         ["ApprovalDelay"])
268
 
            last_approval_request = isoformat_to_datetime(
269
 
                self.properties["LastApprovalRequest"])
270
 
            if last_approval_request is not None:
271
 
                timer = max(timeout - (datetime.datetime.utcnow()
272
 
                                       - last_approval_request),
273
 
                            datetime.timedelta())
274
 
            else:
275
 
                timer = datetime.timedelta()
276
 
            if self.properties["ApprovedByDefault"]:
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())
292
 
            message = ('A checker has failed! Time until client'
293
 
                       ' gets disabled: {}'
294
 
                       .format(str(timer).rsplit(".", 1)[0]))
295
 
            self.using_timer(True)
296
 
        else:
297
 
            message = "enabled"
298
 
            self.using_timer(False)
299
 
        self._text = "{}{}".format(base, message)
300
 
        
301
 
        if not urwid.supports_unicode():
302
 
            self._text = self._text.encode("ascii", "replace")
303
 
        textlist = [("normal", self._text)]
304
 
        self._text_widget.set_text(textlist)
305
 
        self._focus_text_widget.set_text([(with_standout[text[0]],
306
 
                                           text[1])
307
 
                                          if isinstance(text, tuple)
308
 
                                          else text
309
 
                                          for text in textlist])
310
 
        self._widget = self._text_widget
311
 
        self._focus_widget = urwid.AttrWrap(self._focus_text_widget,
312
 
                                            "standout")
313
 
        # Run update hook, if any
314
 
        if self.update_hook is not None:
315
 
            self.update_hook()
316
 
    
317
 
    def update_timer(self):
318
 
        """called by gobject. Will indefinitely loop until
319
 
        gobject.source_remove() on tag is called"""
320
 
        self.update()
321
 
        return True             # Keep calling this
322
 
    
323
 
    def delete(self, **kwargs):
324
 
        if self._update_timer_callback_tag is not None:
325
 
            gobject.source_remove(self._update_timer_callback_tag)
326
 
            self._update_timer_callback_tag = None
327
 
        for match in self.match_objects:
328
 
            match.remove()
329
 
        self.match_objects = ()
330
 
        if self.delete_hook is not None:
331
 
            self.delete_hook(self)
332
 
        return super(MandosClientWidget, self).delete(**kwargs)
333
 
    
334
 
    def render(self, maxcolrow, focus=False):
335
 
        """Render differently if we have focus.
336
 
        This overrides the method from urwid.FlowWidget"""
337
 
        return self.current_widget(focus).render(maxcolrow,
338
 
                                                 focus=focus)
339
 
    
340
 
    def keypress(self, maxcolrow, key):
341
 
        """Handle keys.
342
 
        This overrides the method from urwid.FlowWidget"""
343
 
        if key == "+":
344
 
            self.proxy.Enable(dbus_interface = client_interface,
345
 
                              ignore_reply=True)
346
 
        elif key == "-":
347
 
            self.proxy.Disable(dbus_interface = client_interface,
348
 
                               ignore_reply=True)
349
 
        elif key == "a":
350
 
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
351
 
                               dbus_interface = client_interface,
352
 
                               ignore_reply=True)
353
 
        elif key == "d":
354
 
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
355
 
                                  dbus_interface = client_interface,
356
 
                               ignore_reply=True)
357
 
        elif key == "R" or key == "_" or key == "ctrl k":
358
 
            self.server_proxy_object.RemoveClient(self.proxy
359
 
                                                  .object_path,
360
 
                                                  ignore_reply=True)
361
 
        elif key == "s":
362
 
            self.proxy.StartChecker(dbus_interface = client_interface,
363
 
                                    ignore_reply=True)
364
 
        elif key == "S":
365
 
            self.proxy.StopChecker(dbus_interface = client_interface,
366
 
                                   ignore_reply=True)
367
 
        elif key == "C":
368
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
369
 
                                 ignore_reply=True)
370
 
        # xxx
371
 
#         elif key == "p" or key == "=":
372
 
#             self.proxy.pause()
373
 
#         elif key == "u" or key == ":":
374
 
#             self.proxy.unpause()
375
 
#         elif key == "RET":
376
 
#             self.open()
377
 
        else:
378
 
            return key
379
 
    
380
 
    def property_changed(self, property=None, **kwargs):
381
 
        """Call self.update() if old value is not new value.
382
 
        This overrides the method from MandosClientPropertyCache"""
383
 
        property_name = str(property)
384
 
        old_value = self.properties.get(property_name)
385
 
        super(MandosClientWidget, self).property_changed(
386
 
            property=property, **kwargs)
387
 
        if self.properties.get(property_name) != old_value:
388
 
            self.update()
389
 
 
390
 
 
391
 
class ConstrainedListBox(urwid.ListBox):
392
 
    """Like a normal urwid.ListBox, but will consume all "up" or
393
 
    "down" key presses, thus not allowing any containing widgets to
394
 
    use them as an excuse to shift focus away from this widget.
395
 
    """
396
 
    def keypress(self, *args, **kwargs):
397
 
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
398
 
        if ret in ("up", "down"):
399
 
            return
400
 
        return ret
401
 
 
402
 
 
403
 
class UserInterface(object):
404
 
    """This is the entire user interface - the whole screen
405
 
    with boxes, lists of client widgets, etc.
406
 
    """
407
 
    def __init__(self, max_log_length=1000, log_level=1):
408
 
        DBusGMainLoop(set_as_default=True)
409
 
        
410
 
        self.screen = urwid.curses_display.Screen()
411
 
        
412
 
        self.screen.register_palette((
413
 
                ("normal",
414
 
                 "default", "default", None),
415
 
                ("bold",
416
 
                 "bold", "default", "bold"),
417
 
                ("underline-blink",
418
 
                 "underline,blink", "default", "underline,blink"),
419
 
                ("standout",
420
 
                 "standout", "default", "standout"),
421
 
                ("bold-underline-blink",
422
 
                 "bold,underline,blink", "default", "bold,underline,blink"),
423
 
                ("bold-standout",
424
 
                 "bold,standout", "default", "bold,standout"),
425
 
                ("underline-blink-standout",
426
 
                 "underline,blink,standout", "default",
427
 
                 "underline,blink,standout"),
428
 
                ("bold-underline-blink-standout",
429
 
                 "bold,underline,blink,standout", "default",
430
 
                 "bold,underline,blink,standout"),
431
 
                ))
432
 
        
433
 
        if urwid.supports_unicode():
434
 
            self.divider = "─" # \u2500
435
 
            #self.divider = "━" # \u2501
436
 
        else:
437
 
            #self.divider = "-" # \u002d
438
 
            self.divider = "_" # \u005f
439
 
        
440
 
        self.screen.start()
441
 
        
442
 
        self.size = self.screen.get_cols_rows()
443
 
        
444
 
        self.clients = urwid.SimpleListWalker([])
445
 
        self.clients_dict = {}
446
 
        
447
 
        # We will add Text widgets to this list
448
 
        self.log = []
449
 
        self.max_log_length = max_log_length
450
 
        
451
 
        self.log_level = log_level
452
 
        
453
 
        # We keep a reference to the log widget so we can remove it
454
 
        # from the ListWalker without it getting destroyed
455
 
        self.logbox = ConstrainedListBox(self.log)
456
 
        
457
 
        # This keeps track of whether self.uilist currently has
458
 
        # self.logbox in it or not
459
 
        self.log_visible = True
460
 
        self.log_wrap = "any"
461
 
        
462
 
        self.rebuild()
463
 
        self.log_message_raw(("bold",
464
 
                              "Mandos Monitor version " + version))
465
 
        self.log_message_raw(("bold",
466
 
                              "q: Quit  ?: Help"))
467
 
        
468
 
        self.busname = domain + '.Mandos'
469
 
        self.main_loop = gobject.MainLoop()
470
 
    
471
 
    def client_not_found(self, fingerprint, address):
472
 
        self.log_message("Client with address {} and fingerprint {}"
473
 
                         " could not be found"
474
 
                         .format(address, fingerprint))
475
 
    
476
 
    def rebuild(self):
477
 
        """This rebuilds the User Interface.
478
 
        Call this when the widget layout needs to change"""
479
 
        self.uilist = []
480
 
        #self.uilist.append(urwid.ListBox(self.clients))
481
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
482
 
                                                          clients),
483
 
                                       #header=urwid.Divider(),
484
 
                                       header=None,
485
 
                                       footer=
486
 
                                       urwid.Divider(div_char=
487
 
                                                     self.divider)))
488
 
        if self.log_visible:
489
 
            self.uilist.append(self.logbox)
490
 
        self.topwidget = urwid.Pile(self.uilist)
491
 
    
492
 
    def log_message(self, message, level=1):
493
 
        """Log message formatted with timestamp"""
494
 
        if level < self.log_level:
495
 
            return
496
 
        timestamp = datetime.datetime.now().isoformat()
497
 
        self.log_message_raw("{}: {}".format(timestamp, message),
498
 
                             level=level)
499
 
    
500
 
    def log_message_raw(self, markup, level=1):
501
 
        """Add a log message to the log buffer."""
502
 
        if level < self.log_level:
503
 
            return
504
 
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
505
 
        if (self.max_log_length
506
 
            and len(self.log) > self.max_log_length):
507
 
            del self.log[0:len(self.log)-self.max_log_length-1]
508
 
        self.logbox.set_focus(len(self.logbox.body.contents),
509
 
                              coming_from="above")
510
 
        self.refresh()
511
 
    
512
 
    def toggle_log_display(self):
513
 
        """Toggle visibility of the log buffer."""
514
 
        self.log_visible = not self.log_visible
515
 
        self.rebuild()
516
 
        self.log_message("Log visibility changed to: {}"
517
 
                         .format(self.log_visible), level=0)
518
 
    
519
 
    def change_log_display(self):
520
 
        """Change type of log display.
521
 
        Currently, this toggles wrapping of text lines."""
522
 
        if self.log_wrap == "clip":
523
 
            self.log_wrap = "any"
524
 
        else:
525
 
            self.log_wrap = "clip"
526
 
        for textwidget in self.log:
527
 
            textwidget.set_wrap_mode(self.log_wrap)
528
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
529
 
                         level=0)
530
 
    
531
 
    def find_and_remove_client(self, path, name):
532
 
        """Find a client by its object path and remove it.
533
 
        
534
 
        This is connected to the ClientRemoved signal from the
535
 
        Mandos server object."""
536
 
        try:
537
 
            client = self.clients_dict[path]
538
 
        except KeyError:
539
 
            # not found?
540
 
            self.log_message("Unknown client {!r} ({!r}) removed"
541
 
                             .format(name, path))
542
 
            return
543
 
        client.delete()
544
 
    
545
 
    def add_new_client(self, path):
546
 
        client_proxy_object = self.bus.get_object(self.busname, path)
547
 
        self.add_client(MandosClientWidget(server_proxy_object
548
 
                                           =self.mandos_serv,
549
 
                                           proxy_object
550
 
                                           =client_proxy_object,
551
 
                                           update_hook
552
 
                                           =self.refresh,
553
 
                                           delete_hook
554
 
                                           =self.remove_client,
555
 
                                           logger
556
 
                                           =self.log_message),
557
 
                        path=path)
558
 
    
559
 
    def add_client(self, client, path=None):
560
 
        self.clients.append(client)
561
 
        if path is None:
562
 
            path = client.proxy.object_path
563
 
        self.clients_dict[path] = client
564
 
        self.clients.sort(key=lambda c: c.properties["Name"])
565
 
        self.refresh()
566
 
    
567
 
    def remove_client(self, client, path=None):
568
 
        self.clients.remove(client)
569
 
        if path is None:
570
 
            path = client.proxy.object_path
571
 
        del self.clients_dict[path]
572
 
        self.refresh()
573
 
    
574
 
    def refresh(self):
575
 
        """Redraw the screen"""
576
 
        canvas = self.topwidget.render(self.size, focus=True)
577
 
        self.screen.draw_screen(self.size, canvas)
578
 
    
579
 
    def run(self):
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
 
        
627
 
        self.refresh()
628
 
        self._input_callback_tag = (gobject.io_add_watch
629
 
                                    (sys.stdin.fileno(),
630
 
                                     gobject.IO_IN,
631
 
                                     self.process_input))
632
 
        self.main_loop.run()
633
 
        # Main loop has finished, we should close everything now
634
 
        gobject.source_remove(self._input_callback_tag)
635
 
        self.screen.stop()
636
 
    
637
 
    def stop(self):
638
 
        self.main_loop.quit()
639
 
    
640
 
    def process_input(self, source, condition):
641
 
        keys = self.screen.get_input()
642
 
        translations = { "ctrl n": "down",      # Emacs
643
 
                         "ctrl p": "up",        # Emacs
644
 
                         "ctrl v": "page down", # Emacs
645
 
                         "meta v": "page up",   # Emacs
646
 
                         " ": "page down",      # less
647
 
                         "f": "page down",      # less
648
 
                         "b": "page up",        # less
649
 
                         "j": "down",           # vi
650
 
                         "k": "up",             # vi
651
 
                         }
652
 
        for key in keys:
653
 
            try:
654
 
                key = translations[key]
655
 
            except KeyError:    # :-)
656
 
                pass
657
 
            
658
 
            if key == "q" or key == "Q":
659
 
                self.stop()
660
 
                break
661
 
            elif key == "window resize":
662
 
                self.size = self.screen.get_cols_rows()
663
 
                self.refresh()
664
 
            elif key == "ctrl l":
665
 
                self.screen.clear()
666
 
                self.refresh()
667
 
            elif key == "l" or key == "D":
668
 
                self.toggle_log_display()
669
 
                self.refresh()
670
 
            elif key == "w" or key == "i":
671
 
                self.change_log_display()
672
 
                self.refresh()
673
 
            elif key == "?" or key == "f1" or key == "esc":
674
 
                if not self.log_visible:
675
 
                    self.log_visible = True
676
 
                    self.rebuild()
677
 
                self.log_message_raw(("bold",
678
 
                                      "  ".
679
 
                                      join(("q: Quit",
680
 
                                            "?: Help",
681
 
                                            "l: Log window toggle",
682
 
                                            "TAB: Switch window",
683
 
                                            "w: Wrap (log lines)",
684
 
                                            "v: Toggle verbose log",
685
 
                                            ))))
686
 
                self.log_message_raw(("bold",
687
 
                                      "  "
688
 
                                      .join(("Clients:",
689
 
                                             "+: Enable",
690
 
                                             "-: Disable",
691
 
                                             "R: Remove",
692
 
                                             "s: Start new checker",
693
 
                                             "S: Stop checker",
694
 
                                             "C: Checker OK",
695
 
                                             "a: Approve",
696
 
                                             "d: Deny"))))
697
 
                self.refresh()
698
 
            elif key == "tab":
699
 
                if self.topwidget.get_focus() is self.logbox:
700
 
                    self.topwidget.set_focus(0)
701
 
                else:
702
 
                    self.topwidget.set_focus(self.logbox)
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")
711
 
            #elif (key == "end" or key == "meta >" or key == "G"
712
 
            #      or key == ">"):
713
 
            #    pass            # xxx end-of-buffer
714
 
            #elif (key == "home" or key == "meta <" or key == "g"
715
 
            #      or key == "<"):
716
 
            #    pass            # xxx beginning-of-buffer
717
 
            #elif key == "ctrl e" or key == "$":
718
 
            #    pass            # xxx move-end-of-line
719
 
            #elif key == "ctrl a" or key == "^":
720
 
            #    pass            # xxx move-beginning-of-line
721
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
722
 
            #    pass            # xxx left
723
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
724
 
            #    pass            # xxx right
725
 
            #elif key == "a":
726
 
            #    pass            # scroll up log
727
 
            #elif key == "z":
728
 
            #    pass            # scroll down log
729
 
            elif self.topwidget.selectable():
730
 
                self.topwidget.keypress(self.size, key)
731
 
                self.refresh()
732
 
        return True
733
 
 
734
 
ui = UserInterface()
735
 
try:
736
 
    ui.run()
737
 
except KeyboardInterrupt:
738
 
    ui.screen.stop()
739
 
except Exception as e:
740
 
    ui.log_message(str(e))
741
 
    ui.screen.stop()
742
 
    raise