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  • Committer: Teddy Hogeborn
  • Date: 2008-09-05 23:39:07 UTC
  • Revision ID: teddy@fukt.bsnet.se-20080905233907-3rz7kuwyjwma0pjx
* Makefile (confdir/clients.conf): Tighten permissions to "u=rw".
  (install-server): Set mode of "/etc/mandos/clients.conf" to
                             "u=rw".
  (install-client): Set mode of "/etc/mandos/plugins.d" to "u=rwx".
  (uninstall-client): Also remove "/usr/lib/mandos/plugins.d/usplash",
                "/usr/share/initramfs-tools/scripts/local-top/mandos",
                      and "/etc/keys/mandos".
  (purge-server): Also remove "/var/run/mandos.pid".

* initramfs-tools-hook: Use "install" instead of "mkdir".  Change
                        owner of "/lib/mandos/plugins.d" and key
                        files.  Bug fix: do not repair permissions of
                        "/lib/mandos/plugins.d".  Bug fix: Really
                        avoid deliberately unreadable files and/or
                        directories.

* mandos-keygen (umask): Changed to "077".

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mandos-monitor
1
 
#!/usr/bin/python
2
 
# -*- mode: python; coding: utf-8 -*-
3
 
# 
4
 
# Mandos Monitor - Control and monitor the Mandos server
5
 
# 
6
 
# Copyright © 2009-2013 Teddy Hogeborn
7
 
# Copyright © 2009-2013 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[0] == 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 = "1.6.4"
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 {0}'
165
 
        #            .format(self.properties["Name"]))
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.update()
183
 
            return
184
 
        # Checker failed
185
 
        if os.WIFEXITED(condition):
186
 
            self.logger('Checker for client {0} (command "{1}")'
187
 
                        ' failed with exit code {2}'
188
 
                        .format(self.properties["Name"], command,
189
 
                                os.WEXITSTATUS(condition)))
190
 
        elif os.WIFSIGNALED(condition):
191
 
            self.logger('Checker for client {0} (command "{1}") was'
192
 
                        ' killed by signal {2}'
193
 
                        .format(self.properties["Name"], command,
194
 
                                os.WTERMSIG(condition)))
195
 
        elif os.WCOREDUMP(condition):
196
 
            self.logger('Checker for client {0} (command "{1}")'
197
 
                        ' dumped core'
198
 
                        .format(self.properties["Name"], command))
199
 
        else:
200
 
            self.logger('Checker for client {0} completed'
201
 
                        ' mysteriously'
202
 
                        .format(self.properties["Name"]))
203
 
        self.update()
204
 
    
205
 
    def checker_started(self, command):
206
 
        """Server signals that a checker started. This could be useful
207
 
           to log in the future. """
208
 
        #self.logger('Client {0} started checker "{1}"'
209
 
        #            .format(self.properties["Name"],
210
 
        #                    str(command)))
211
 
        pass
212
 
    
213
 
    def got_secret(self):
214
 
        self.logger('Client {0} received its secret'
215
 
                    .format(self.properties["Name"]))
216
 
    
217
 
    def need_approval(self, timeout, default):
218
 
        if not default:
219
 
            message = 'Client {0} needs approval within {1} seconds'
220
 
        else:
221
 
            message = 'Client {0} will get its secret in {1} seconds'
222
 
        self.logger(message.format(self.properties["Name"],
223
 
                                   timeout/1000))
224
 
    
225
 
    def rejected(self, reason):
226
 
        self.logger('Client {0} was rejected; reason: {1}'
227
 
                    .format(self.properties["Name"], reason))
228
 
    
229
 
    def selectable(self):
230
 
        """Make this a "selectable" widget.
231
 
        This overrides the method from urwid.FlowWidget."""
232
 
        return True
233
 
    
234
 
    def rows(self, maxcolrow, focus=False):
235
 
        """How many rows this widget will occupy might depend on
236
 
        whether we have focus or not.
237
 
        This overrides the method from urwid.FlowWidget"""
238
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
239
 
    
240
 
    def current_widget(self, focus=False):
241
 
        if focus or self.opened:
242
 
            return self._focus_widget
243
 
        return self._widget
244
 
    
245
 
    def update(self):
246
 
        "Called when what is visible on the screen should be updated."
247
 
        # How to add standout mode to a style
248
 
        with_standout = { "normal": "standout",
249
 
                          "bold": "bold-standout",
250
 
                          "underline-blink":
251
 
                              "underline-blink-standout",
252
 
                          "bold-underline-blink":
253
 
                              "bold-underline-blink-standout",
254
 
                          }
255
 
        
256
 
        # Rebuild focus and non-focus widgets using current properties
257
 
        
258
 
        # Base part of a client. Name!
259
 
        base = '{name}: '.format(name=self.properties["Name"])
260
 
        if not self.properties["Enabled"]:
261
 
            message = "DISABLED"
262
 
            self.using_timer(False)
263
 
        elif self.properties["ApprovalPending"]:
264
 
            timeout = datetime.timedelta(milliseconds
265
 
                                         = self.properties
266
 
                                         ["ApprovalDelay"])
267
 
            last_approval_request = isoformat_to_datetime(
268
 
                self.properties["LastApprovalRequest"])
269
 
            if last_approval_request is not None:
270
 
                timer = max(timeout - (datetime.datetime.utcnow()
271
 
                                       - last_approval_request),
272
 
                            datetime.timedelta())
273
 
            else:
274
 
                timer = datetime.timedelta()
275
 
            if self.properties["ApprovedByDefault"]:
276
 
                message = "Approval in {0}. (d)eny?"
277
 
            else:
278
 
                message = "Denial in {0}. (a)pprove?"
279
 
            message = message.format(str(timer).rsplit(".", 1)[0])
280
 
            self.using_timer(True)
281
 
        elif self.properties["LastCheckerStatus"] != 0:
282
 
            # When checker has failed, show timer until client expires
283
 
            expires = self.properties["Expires"]
284
 
            if expires == "":
285
 
                timer = datetime.timedelta(0)
286
 
            else:
287
 
                expires = (datetime.datetime.strptime
288
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
289
 
                timer = max(expires - datetime.datetime.utcnow(),
290
 
                            datetime.timedelta())
291
 
            message = ('A checker has failed! Time until client'
292
 
                       ' gets disabled: {0}'
293
 
                       .format(str(timer).rsplit(".", 1)[0]))
294
 
            self.using_timer(True)
295
 
        else:
296
 
            message = "enabled"
297
 
            self.using_timer(False)
298
 
        self._text = "{0}{1}".format(base, message)
299
 
        
300
 
        if not urwid.supports_unicode():
301
 
            self._text = self._text.encode("ascii", "replace")
302
 
        textlist = [("normal", self._text)]
303
 
        self._text_widget.set_text(textlist)
304
 
        self._focus_text_widget.set_text([(with_standout[text[0]],
305
 
                                           text[1])
306
 
                                          if isinstance(text, tuple)
307
 
                                          else text
308
 
                                          for text in textlist])
309
 
        self._widget = self._text_widget
310
 
        self._focus_widget = urwid.AttrWrap(self._focus_text_widget,
311
 
                                            "standout")
312
 
        # Run update hook, if any
313
 
        if self.update_hook is not None:
314
 
            self.update_hook()
315
 
    
316
 
    def update_timer(self):
317
 
        """called by gobject. Will indefinitely loop until
318
 
        gobject.source_remove() on tag is called"""
319
 
        self.update()
320
 
        return True             # Keep calling this
321
 
    
322
 
    def delete(self, **kwargs):
323
 
        if self._update_timer_callback_tag is not None:
324
 
            gobject.source_remove(self._update_timer_callback_tag)
325
 
            self._update_timer_callback_tag = None
326
 
        for match in self.match_objects:
327
 
            match.remove()
328
 
        self.match_objects = ()
329
 
        if self.delete_hook is not None:
330
 
            self.delete_hook(self)
331
 
        return super(MandosClientWidget, self).delete(**kwargs)
332
 
    
333
 
    def render(self, maxcolrow, focus=False):
334
 
        """Render differently if we have focus.
335
 
        This overrides the method from urwid.FlowWidget"""
336
 
        return self.current_widget(focus).render(maxcolrow,
337
 
                                                 focus=focus)
338
 
    
339
 
    def keypress(self, maxcolrow, key):
340
 
        """Handle keys.
341
 
        This overrides the method from urwid.FlowWidget"""
342
 
        if key == "+":
343
 
            self.proxy.Enable(dbus_interface = client_interface,
344
 
                              ignore_reply=True)
345
 
        elif key == "-":
346
 
            self.proxy.Disable(dbus_interface = client_interface,
347
 
                               ignore_reply=True)
348
 
        elif key == "a":
349
 
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
350
 
                               dbus_interface = client_interface,
351
 
                               ignore_reply=True)
352
 
        elif key == "d":
353
 
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
354
 
                                  dbus_interface = client_interface,
355
 
                               ignore_reply=True)
356
 
        elif key == "R" or key == "_" or key == "ctrl k":
357
 
            self.server_proxy_object.RemoveClient(self.proxy
358
 
                                                  .object_path,
359
 
                                                  ignore_reply=True)
360
 
        elif key == "s":
361
 
            self.proxy.StartChecker(dbus_interface = client_interface,
362
 
                                    ignore_reply=True)
363
 
        elif key == "S":
364
 
            self.proxy.StopChecker(dbus_interface = client_interface,
365
 
                                   ignore_reply=True)
366
 
        elif key == "C":
367
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
368
 
                                 ignore_reply=True)
369
 
        # xxx
370
 
#         elif key == "p" or key == "=":
371
 
#             self.proxy.pause()
372
 
#         elif key == "u" or key == ":":
373
 
#             self.proxy.unpause()
374
 
#         elif key == "RET":
375
 
#             self.open()
376
 
        else:
377
 
            return key
378
 
    
379
 
    def property_changed(self, property=None, **kwargs):
380
 
        """Call self.update() if old value is not new value.
381
 
        This overrides the method from MandosClientPropertyCache"""
382
 
        property_name = str(property)
383
 
        old_value = self.properties.get(property_name)
384
 
        super(MandosClientWidget, self).property_changed(
385
 
            property=property, **kwargs)
386
 
        if self.properties.get(property_name) != old_value:
387
 
            self.update()
388
 
 
389
 
 
390
 
class ConstrainedListBox(urwid.ListBox):
391
 
    """Like a normal urwid.ListBox, but will consume all "up" or
392
 
    "down" key presses, thus not allowing any containing widgets to
393
 
    use them as an excuse to shift focus away from this widget.
394
 
    """
395
 
    def keypress(self, *args, **kwargs):
396
 
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
397
 
        if ret in ("up", "down"):
398
 
            return
399
 
        return ret
400
 
 
401
 
 
402
 
class UserInterface(object):
403
 
    """This is the entire user interface - the whole screen
404
 
    with boxes, lists of client widgets, etc.
405
 
    """
406
 
    def __init__(self, max_log_length=1000):
407
 
        DBusGMainLoop(set_as_default=True)
408
 
        
409
 
        self.screen = urwid.curses_display.Screen()
410
 
        
411
 
        self.screen.register_palette((
412
 
                ("normal",
413
 
                 "default", "default", None),
414
 
                ("bold",
415
 
                 "bold", "default", "bold"),
416
 
                ("underline-blink",
417
 
                 "underline,blink", "default", "underline,blink"),
418
 
                ("standout",
419
 
                 "standout", "default", "standout"),
420
 
                ("bold-underline-blink",
421
 
                 "bold,underline,blink", "default", "bold,underline,blink"),
422
 
                ("bold-standout",
423
 
                 "bold,standout", "default", "bold,standout"),
424
 
                ("underline-blink-standout",
425
 
                 "underline,blink,standout", "default",
426
 
                 "underline,blink,standout"),
427
 
                ("bold-underline-blink-standout",
428
 
                 "bold,underline,blink,standout", "default",
429
 
                 "bold,underline,blink,standout"),
430
 
                ))
431
 
        
432
 
        if urwid.supports_unicode():
433
 
            self.divider = "─" # \u2500
434
 
            #self.divider = "━" # \u2501
435
 
        else:
436
 
            #self.divider = "-" # \u002d
437
 
            self.divider = "_" # \u005f
438
 
        
439
 
        self.screen.start()
440
 
        
441
 
        self.size = self.screen.get_cols_rows()
442
 
        
443
 
        self.clients = urwid.SimpleListWalker([])
444
 
        self.clients_dict = {}
445
 
        
446
 
        # We will add Text widgets to this list
447
 
        self.log = []
448
 
        self.max_log_length = max_log_length
449
 
        
450
 
        # We keep a reference to the log widget so we can remove it
451
 
        # from the ListWalker without it getting destroyed
452
 
        self.logbox = ConstrainedListBox(self.log)
453
 
        
454
 
        # This keeps track of whether self.uilist currently has
455
 
        # self.logbox in it or not
456
 
        self.log_visible = True
457
 
        self.log_wrap = "any"
458
 
        
459
 
        self.rebuild()
460
 
        self.log_message_raw(("bold",
461
 
                              "Mandos Monitor version " + version))
462
 
        self.log_message_raw(("bold",
463
 
                              "q: Quit  ?: Help"))
464
 
        
465
 
        self.busname = domain + '.Mandos'
466
 
        self.main_loop = gobject.MainLoop()
467
 
    
468
 
    def client_not_found(self, fingerprint, address):
469
 
        self.log_message("Client with address {0} and fingerprint"
470
 
                         " {1} could not be found"
471
 
                         .format(address, fingerprint))
472
 
    
473
 
    def rebuild(self):
474
 
        """This rebuilds the User Interface.
475
 
        Call this when the widget layout needs to change"""
476
 
        self.uilist = []
477
 
        #self.uilist.append(urwid.ListBox(self.clients))
478
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
479
 
                                                          clients),
480
 
                                       #header=urwid.Divider(),
481
 
                                       header=None,
482
 
                                       footer=
483
 
                                       urwid.Divider(div_char=
484
 
                                                     self.divider)))
485
 
        if self.log_visible:
486
 
            self.uilist.append(self.logbox)
487
 
        self.topwidget = urwid.Pile(self.uilist)
488
 
    
489
 
    def log_message(self, message):
490
 
        """Log message formatted with timestamp"""
491
 
        timestamp = datetime.datetime.now().isoformat()
492
 
        self.log_message_raw(timestamp + ": " + message)
493
 
    
494
 
    def log_message_raw(self, markup):
495
 
        """Add a log message to the log buffer."""
496
 
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
497
 
        if (self.max_log_length
498
 
            and len(self.log) > self.max_log_length):
499
 
            del self.log[0:len(self.log)-self.max_log_length-1]
500
 
        self.logbox.set_focus(len(self.logbox.body.contents),
501
 
                              coming_from="above")
502
 
        self.refresh()
503
 
    
504
 
    def toggle_log_display(self):
505
 
        """Toggle visibility of the log buffer."""
506
 
        self.log_visible = not self.log_visible
507
 
        self.rebuild()
508
 
        #self.log_message("Log visibility changed to: "
509
 
        #                 + str(self.log_visible))
510
 
    
511
 
    def change_log_display(self):
512
 
        """Change type of log display.
513
 
        Currently, this toggles wrapping of text lines."""
514
 
        if self.log_wrap == "clip":
515
 
            self.log_wrap = "any"
516
 
        else:
517
 
            self.log_wrap = "clip"
518
 
        for textwidget in self.log:
519
 
            textwidget.set_wrap_mode(self.log_wrap)
520
 
        #self.log_message("Wrap mode: " + self.log_wrap)
521
 
    
522
 
    def find_and_remove_client(self, path, name):
523
 
        """Find a client by its object path and remove it.
524
 
        
525
 
        This is connected to the ClientRemoved signal from the
526
 
        Mandos server object."""
527
 
        try:
528
 
            client = self.clients_dict[path]
529
 
        except KeyError:
530
 
            # not found?
531
 
            self.log_message("Unknown client {0!r} ({1!r}) removed"
532
 
                             .format(name, path))
533
 
            return
534
 
        client.delete()
535
 
    
536
 
    def add_new_client(self, path):
537
 
        client_proxy_object = self.bus.get_object(self.busname, path)
538
 
        self.add_client(MandosClientWidget(server_proxy_object
539
 
                                           =self.mandos_serv,
540
 
                                           proxy_object
541
 
                                           =client_proxy_object,
542
 
                                           update_hook
543
 
                                           =self.refresh,
544
 
                                           delete_hook
545
 
                                           =self.remove_client,
546
 
                                           logger
547
 
                                           =self.log_message),
548
 
                        path=path)
549
 
    
550
 
    def add_client(self, client, path=None):
551
 
        self.clients.append(client)
552
 
        if path is None:
553
 
            path = client.proxy.object_path
554
 
        self.clients_dict[path] = client
555
 
        self.clients.sort(key=lambda c: c.properties["Name"])
556
 
        self.refresh()
557
 
    
558
 
    def remove_client(self, client, path=None):
559
 
        self.clients.remove(client)
560
 
        if path is None:
561
 
            path = client.proxy.object_path
562
 
        del self.clients_dict[path]
563
 
        self.refresh()
564
 
    
565
 
    def refresh(self):
566
 
        """Redraw the screen"""
567
 
        canvas = self.topwidget.render(self.size, focus=True)
568
 
        self.screen.draw_screen(self.size, canvas)
569
 
    
570
 
    def run(self):
571
 
        """Start the main loop and exit when it's done."""
572
 
        self.bus = dbus.SystemBus()
573
 
        mandos_dbus_objc = self.bus.get_object(
574
 
            self.busname, "/", follow_name_owner_changes=True)
575
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
576
 
                                          dbus_interface
577
 
                                          = server_interface)
578
 
        try:
579
 
            mandos_clients = (self.mandos_serv
580
 
                              .GetAllClientsWithProperties())
581
 
            if not mandos_clients:
582
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
583
 
        except dbus.exceptions.DBusException:
584
 
            self.log_message_raw(("bold", "Note: No Mandos server running."))
585
 
            mandos_clients = dbus.Dictionary()
586
 
        
587
 
        (self.mandos_serv
588
 
         .connect_to_signal("ClientRemoved",
589
 
                            self.find_and_remove_client,
590
 
                            dbus_interface=server_interface,
591
 
                            byte_arrays=True))
592
 
        (self.mandos_serv
593
 
         .connect_to_signal("ClientAdded",
594
 
                            self.add_new_client,
595
 
                            dbus_interface=server_interface,
596
 
                            byte_arrays=True))
597
 
        (self.mandos_serv
598
 
         .connect_to_signal("ClientNotFound",
599
 
                            self.client_not_found,
600
 
                            dbus_interface=server_interface,
601
 
                            byte_arrays=True))
602
 
        for path, client in mandos_clients.items():
603
 
            client_proxy_object = self.bus.get_object(self.busname,
604
 
                                                      path)
605
 
            self.add_client(MandosClientWidget(server_proxy_object
606
 
                                               =self.mandos_serv,
607
 
                                               proxy_object
608
 
                                               =client_proxy_object,
609
 
                                               properties=client,
610
 
                                               update_hook
611
 
                                               =self.refresh,
612
 
                                               delete_hook
613
 
                                               =self.remove_client,
614
 
                                               logger
615
 
                                               =self.log_message),
616
 
                            path=path)
617
 
        
618
 
        self.refresh()
619
 
        self._input_callback_tag = (gobject.io_add_watch
620
 
                                    (sys.stdin.fileno(),
621
 
                                     gobject.IO_IN,
622
 
                                     self.process_input))
623
 
        self.main_loop.run()
624
 
        # Main loop has finished, we should close everything now
625
 
        gobject.source_remove(self._input_callback_tag)
626
 
        self.screen.stop()
627
 
    
628
 
    def stop(self):
629
 
        self.main_loop.quit()
630
 
    
631
 
    def process_input(self, source, condition):
632
 
        keys = self.screen.get_input()
633
 
        translations = { "ctrl n": "down",      # Emacs
634
 
                         "ctrl p": "up",        # Emacs
635
 
                         "ctrl v": "page down", # Emacs
636
 
                         "meta v": "page up",   # Emacs
637
 
                         " ": "page down",      # less
638
 
                         "f": "page down",      # less
639
 
                         "b": "page up",        # less
640
 
                         "j": "down",           # vi
641
 
                         "k": "up",             # vi
642
 
                         }
643
 
        for key in keys:
644
 
            try:
645
 
                key = translations[key]
646
 
            except KeyError:    # :-)
647
 
                pass
648
 
            
649
 
            if key == "q" or key == "Q":
650
 
                self.stop()
651
 
                break
652
 
            elif key == "window resize":
653
 
                self.size = self.screen.get_cols_rows()
654
 
                self.refresh()
655
 
            elif key == "\f":  # Ctrl-L
656
 
                self.refresh()
657
 
            elif key == "l" or key == "D":
658
 
                self.toggle_log_display()
659
 
                self.refresh()
660
 
            elif key == "w" or key == "i":
661
 
                self.change_log_display()
662
 
                self.refresh()
663
 
            elif key == "?" or key == "f1" or key == "esc":
664
 
                if not self.log_visible:
665
 
                    self.log_visible = True
666
 
                    self.rebuild()
667
 
                self.log_message_raw(("bold",
668
 
                                      "  ".
669
 
                                      join(("q: Quit",
670
 
                                            "?: Help",
671
 
                                            "l: Log window toggle",
672
 
                                            "TAB: Switch window",
673
 
                                            "w: Wrap (log)"))))
674
 
                self.log_message_raw(("bold",
675
 
                                      "  "
676
 
                                      .join(("Clients:",
677
 
                                             "+: Enable",
678
 
                                             "-: Disable",
679
 
                                             "R: Remove",
680
 
                                             "s: Start new checker",
681
 
                                             "S: Stop checker",
682
 
                                             "C: Checker OK",
683
 
                                             "a: Approve",
684
 
                                             "d: Deny"))))
685
 
                self.refresh()
686
 
            elif key == "tab":
687
 
                if self.topwidget.get_focus() is self.logbox:
688
 
                    self.topwidget.set_focus(0)
689
 
                else:
690
 
                    self.topwidget.set_focus(self.logbox)
691
 
                self.refresh()
692
 
            #elif (key == "end" or key == "meta >" or key == "G"
693
 
            #      or key == ">"):
694
 
            #    pass            # xxx end-of-buffer
695
 
            #elif (key == "home" or key == "meta <" or key == "g"
696
 
            #      or key == "<"):
697
 
            #    pass            # xxx beginning-of-buffer
698
 
            #elif key == "ctrl e" or key == "$":
699
 
            #    pass            # xxx move-end-of-line
700
 
            #elif key == "ctrl a" or key == "^":
701
 
            #    pass            # xxx move-beginning-of-line
702
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
703
 
            #    pass            # xxx left
704
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
705
 
            #    pass            # xxx right
706
 
            #elif key == "a":
707
 
            #    pass            # scroll up log
708
 
            #elif key == "z":
709
 
            #    pass            # scroll down log
710
 
            elif self.topwidget.selectable():
711
 
                self.topwidget.keypress(self.size, key)
712
 
                self.refresh()
713
 
        return True
714
 
 
715
 
ui = UserInterface()
716
 
try:
717
 
    ui.run()
718
 
except KeyboardInterrupt:
719
 
    ui.screen.stop()
720
 
except Exception as e:
721
 
    ui.log_message(str(e))
722
 
    ui.screen.stop()
723
 
    raise