/mandos/trunk

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  • Committer: Teddy Hogeborn
  • Date: 2008-09-17 00:34:09 UTC
  • Revision ID: teddy@fukt.bsnet.se-20080917003409-bxbjsc4o69nx40t6
* .bzr-builddeb/default.conf: New.

* Makefile (install-server): Do not create directories that
                             should already be present in a
                             normal system.
  (install-client-nokey): - '' -  Also specify non-executable
                          mode for "initramfs-tools-hook-conf".

* README: Improved wording.  Use real copyright mark.

* debian/changelog: New.
* debian/compat: - '' -
* debian/control: - '' -
* debian/copyright: - '' -
* debian/mandos-client.README.Debian: - '' -
* debian/mandos-client.dirs: - '' -
* debian/mandos-client.lintian-overrides: - '' -
* debian/mandos-client.postinst: - '' -
* debian/mandos-client.postrm: - '' -
* debian/mandos.dirs: - '' -
* debian/mandos.lintian-overrides: - '' -
* debian/rules: - '' -
* default-mandos: - '' -

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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 © 2009-2011 Teddy Hogeborn
7
 
# Copyright © 2009-2011 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 <http://www.gnu.org/licenses/>.
21
 
# 
22
 
# Contact the authors at <mandos@fukt.bsnet.se>.
23
 
# 
24
 
 
25
 
from __future__ import division, absolute_import, print_function, unicode_literals
26
 
 
27
 
import sys
28
 
import os
29
 
import signal
30
 
 
31
 
import datetime
32
 
 
33
 
import urwid.curses_display
34
 
import urwid
35
 
 
36
 
from dbus.mainloop.glib import DBusGMainLoop
37
 
import gobject
38
 
 
39
 
import dbus
40
 
 
41
 
import UserList
42
 
 
43
 
import locale
44
 
 
45
 
locale.setlocale(locale.LC_ALL, '')
46
 
 
47
 
import logging
48
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
49
 
 
50
 
# Some useful constants
51
 
domain = 'se.bsnet.fukt'
52
 
server_interface = domain + '.Mandos'
53
 
client_interface = domain + '.Mandos.Client'
54
 
version = "1.2.3"
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)
63
 
 
64
 
def isoformat_to_datetime(iso):
65
 
    "Parse an ISO 8601 date string to a datetime.datetime()"
66
 
    if not iso:
67
 
        return None
68
 
    d, t = iso.split("T", 1)
69
 
    year, month, day = d.split("-", 2)
70
 
    hour, minute, second = t.split(":", 2)
71
 
    second, fraction = divmod(float(second), 1)
72
 
    return datetime.datetime(int(year),
73
 
                             int(month),
74
 
                             int(day),
75
 
                             int(hour),
76
 
                             int(minute),
77
 
                             int(second),           # Whole seconds
78
 
                             int(fraction*1000000)) # Microseconds
79
 
 
80
 
class MandosClientPropertyCache(object):
81
 
    """This wraps a Mandos Client D-Bus proxy object, caches the
82
 
    properties and calls a hook function when any of them are
83
 
    changed.
84
 
    """
85
 
    def __init__(self, proxy_object=None, *args, **kwargs):
86
 
        self.proxy = proxy_object # Mandos Client proxy object
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)
101
 
    
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.
105
 
        """
106
 
        # Update properties dict with new value
107
 
        self.properties[property] = value
108
 
 
109
 
 
110
 
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
111
 
    """A Mandos Client which is visible on the screen.
112
 
    """
113
 
    
114
 
    def __init__(self, server_proxy_object=None, update_hook=None,
115
 
                 delete_hook=None, logger=None, *args, **kwargs):
116
 
        # Called on update
117
 
        self.update_hook = update_hook
118
 
        # Called on delete
119
 
        self.delete_hook = delete_hook
120
 
        # Mandos Server proxy object
121
 
        self.server_proxy_object = server_proxy_object
122
 
        # Logger
123
 
        self.logger = logger
124
 
        
125
 
        self._update_timer_callback_tag = None
126
 
        self._update_timer_callback_lock = 0
127
 
        self.last_checker_failed = False
128
 
        
129
 
        # The widget shown normally
130
 
        self._text_widget = urwid.Text("")
131
 
        # The widget shown when we have focus
132
 
        self._focus_text_widget = urwid.Text("")
133
 
        super(MandosClientWidget, self).__init__(
134
 
            update_hook=update_hook, delete_hook=delete_hook,
135
 
            *args, **kwargs)
136
 
        self.update()
137
 
        self.opened = False
138
 
        
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)
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
 
        
184
 
    def using_timer(self, flag):
185
 
        """Call this method with True or False when timer should be
186
 
        activated or deactivated.
187
 
        """
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:
194
 
            self._update_timer_callback_tag = (gobject.timeout_add
195
 
                                               (1000,
196
 
                                                self.update_timer))
197
 
        elif old and self._update_timer_callback_lock == 0:
198
 
            gobject.source_remove(self._update_timer_callback_tag)
199
 
            self._update_timer_callback_tag = None
200
 
    
201
 
    def checker_completed(self, exitstatus, condition, command):
202
 
        if exitstatus == 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))
209
 
            self.update()
210
 
            return
211
 
        # Checker failed
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))
229
 
        else:
230
 
            self.logger('Checker for client %s completed'
231
 
                        ' mysteriously')
232
 
        self.update()
233
 
    
234
 
    def checker_started(self, command):
235
 
        #self.logger('Client %s started checker "%s"'
236
 
        #            % (self.properties["Name"], unicode(command)))
237
 
        pass
238
 
    
239
 
    def got_secret(self):
240
 
        self.last_checker_failed = False
241
 
        self.logger('Client %s received its secret'
242
 
                    % self.properties["Name"])
243
 
    
244
 
    def need_approval(self, timeout, default):
245
 
        if not default:
246
 
            message = 'Client %s needs approval within %s seconds'
247
 
        else:
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)
252
 
    
253
 
    def rejected(self, reason):
254
 
        self.logger('Client %s was rejected; reason: %s'
255
 
                    % (self.properties["Name"], reason))
256
 
    
257
 
    def selectable(self):
258
 
        """Make this a "selectable" widget.
259
 
        This overrides the method from urwid.FlowWidget."""
260
 
        return True
261
 
    
262
 
    def rows(self, maxcolrow, focus=False):
263
 
        """How many rows this widget will occupy might depend on
264
 
        whether we have focus or not.
265
 
        This overrides the method from urwid.FlowWidget"""
266
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
267
 
    
268
 
    def current_widget(self, focus=False):
269
 
        if focus or self.opened:
270
 
            return self._focus_widget
271
 
        return self._widget
272
 
    
273
 
    def update(self):
274
 
        "Called when what is visible on the screen should be updated."
275
 
        # How to add standout mode to a style
276
 
        with_standout = { "normal": "standout",
277
 
                          "bold": "bold-standout",
278
 
                          "underline-blink":
279
 
                              "underline-blink-standout",
280
 
                          "bold-underline-blink":
281
 
                              "bold-underline-blink-standout",
282
 
                          }
283
 
 
284
 
        # Rebuild focus and non-focus widgets using current properties
285
 
 
286
 
        # Base part of a client. Name!
287
 
        base = ('%(name)s: '
288
 
                      % {"name": self.properties["Name"]})
289
 
        if not self.properties["Enabled"]:
290
 
            message = "DISABLED"
291
 
        elif self.properties["ApprovalPending"]:
292
 
            timeout = datetime.timedelta(milliseconds
293
 
                                         = self.properties
294
 
                                         ["ApprovalDelay"])
295
 
            last_approval_request = isoformat_to_datetime(
296
 
                self.properties["LastApprovalRequest"])
297
 
            if last_approval_request is not None:
298
 
                timer = timeout - (datetime.datetime.utcnow()
299
 
                                   - last_approval_request)
300
 
            else:
301
 
                timer = datetime.timedelta()
302
 
            if self.properties["ApprovedByDefault"]:
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)
316
 
            message = ('A checker has failed! Time until client'
317
 
                       ' gets disabled: %s'
318
 
                           % unicode(timer).rsplit(".", 1)[0])
319
 
        else:
320
 
            message = "enabled"
321
 
        self._text = "%s%s" % (base, message)
322
 
            
323
 
        if not urwid.supports_unicode():
324
 
            self._text = self._text.encode("ascii", "replace")
325
 
        textlist = [("normal", self._text)]
326
 
        self._text_widget.set_text(textlist)
327
 
        self._focus_text_widget.set_text([(with_standout[text[0]],
328
 
                                           text[1])
329
 
                                          if isinstance(text, tuple)
330
 
                                          else text
331
 
                                          for text in textlist])
332
 
        self._widget = self._text_widget
333
 
        self._focus_widget = urwid.AttrWrap(self._focus_text_widget,
334
 
                                            "standout")
335
 
        # Run update hook, if any
336
 
        if self.update_hook is not None:
337
 
            self.update_hook()
338
 
    
339
 
    def update_timer(self):
340
 
        "called by gobject"
341
 
        self.update()
342
 
        return True             # Keep calling this
343
 
    
344
 
    def delete(self):
345
 
        if self._update_timer_callback_tag is not None:
346
 
            gobject.source_remove(self._update_timer_callback_tag)
347
 
            self._update_timer_callback_tag = None
348
 
        if self.delete_hook is not None:
349
 
            self.delete_hook(self)
350
 
    
351
 
    def render(self, maxcolrow, focus=False):
352
 
        """Render differently if we have focus.
353
 
        This overrides the method from urwid.FlowWidget"""
354
 
        return self.current_widget(focus).render(maxcolrow,
355
 
                                                 focus=focus)
356
 
    
357
 
    def keypress(self, maxcolrow, key):
358
 
        """Handle keys.
359
 
        This overrides the method from urwid.FlowWidget"""
360
 
        if key == "+":
361
 
            self.proxy.Enable(dbus_interface = client_interface)
362
 
        elif key == "-":
363
 
            self.proxy.Disable(dbus_interface = client_interface)
364
 
        elif key == "a":
365
 
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
366
 
                               dbus_interface = client_interface)
367
 
        elif key == "d":
368
 
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
369
 
                                  dbus_interface = client_interface)
370
 
        elif key == "R" or key == "_" or key == "ctrl k":
371
 
            self.server_proxy_object.RemoveClient(self.proxy
372
 
                                                  .object_path)
373
 
        elif key == "s":
374
 
            self.proxy.StartChecker(dbus_interface = client_interface)
375
 
        elif key == "S":
376
 
            self.proxy.StopChecker(dbus_interface = client_interface)
377
 
        elif key == "C":
378
 
            self.proxy.CheckedOK(dbus_interface = client_interface)
379
 
        # xxx
380
 
#         elif key == "p" or key == "=":
381
 
#             self.proxy.pause()
382
 
#         elif key == "u" or key == ":":
383
 
#             self.proxy.unpause()
384
 
#         elif key == "RET":
385
 
#             self.open()
386
 
        else:
387
 
            return key
388
 
    
389
 
    def property_changed(self, property=None, value=None,
390
 
                         *args, **kwargs):
391
 
        """Call self.update() if old value is not new value.
392
 
        This overrides the method from MandosClientPropertyCache"""
393
 
        property_name = unicode(property)
394
 
        old_value = self.properties.get(property_name)
395
 
        super(MandosClientWidget, self).property_changed(
396
 
            property=property, value=value, *args, **kwargs)
397
 
        if self.properties.get(property_name) != old_value:
398
 
            self.update()
399
 
 
400
 
 
401
 
class ConstrainedListBox(urwid.ListBox):
402
 
    """Like a normal urwid.ListBox, but will consume all "up" or
403
 
    "down" key presses, thus not allowing any containing widgets to
404
 
    use them as an excuse to shift focus away from this widget.
405
 
    """
406
 
    def keypress(self, maxcolrow, key):
407
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
408
 
        if ret in ("up", "down"):
409
 
            return
410
 
        return ret
411
 
 
412
 
 
413
 
class UserInterface(object):
414
 
    """This is the entire user interface - the whole screen
415
 
    with boxes, lists of client widgets, etc.
416
 
    """
417
 
    def __init__(self, max_log_length=1000):
418
 
        DBusGMainLoop(set_as_default=True)
419
 
        
420
 
        self.screen = urwid.curses_display.Screen()
421
 
        
422
 
        self.screen.register_palette((
423
 
                ("normal",
424
 
                 "default", "default", None),
425
 
                ("bold",
426
 
                 "default", "default", "bold"),
427
 
                ("underline-blink",
428
 
                 "default", "default", "underline"),
429
 
                ("standout",
430
 
                 "default", "default", "standout"),
431
 
                ("bold-underline-blink",
432
 
                 "default", "default", ("bold", "underline")),
433
 
                ("bold-standout",
434
 
                 "default", "default", ("bold", "standout")),
435
 
                ("underline-blink-standout",
436
 
                 "default", "default", ("underline", "standout")),
437
 
                ("bold-underline-blink-standout",
438
 
                 "default", "default", ("bold", "underline",
439
 
                                          "standout")),
440
 
                ))
441
 
        
442
 
        if urwid.supports_unicode():
443
 
            self.divider = "─" # \u2500
444
 
            #self.divider = "━" # \u2501
445
 
        else:
446
 
            #self.divider = "-" # \u002d
447
 
            self.divider = "_" # \u005f
448
 
        
449
 
        self.screen.start()
450
 
        
451
 
        self.size = self.screen.get_cols_rows()
452
 
        
453
 
        self.clients = urwid.SimpleListWalker([])
454
 
        self.clients_dict = {}
455
 
        
456
 
        # We will add Text widgets to this list
457
 
        self.log = []
458
 
        self.max_log_length = max_log_length
459
 
        
460
 
        # We keep a reference to the log widget so we can remove it
461
 
        # from the ListWalker without it getting destroyed
462
 
        self.logbox = ConstrainedListBox(self.log)
463
 
        
464
 
        # This keeps track of whether self.uilist currently has
465
 
        # self.logbox in it or not
466
 
        self.log_visible = True
467
 
        self.log_wrap = "any"
468
 
        
469
 
        self.rebuild()
470
 
        self.log_message_raw(("bold",
471
 
                              "Mandos Monitor version " + version))
472
 
        self.log_message_raw(("bold",
473
 
                              "q: Quit  ?: Help"))
474
 
        
475
 
        self.busname = domain + '.Mandos'
476
 
        self.main_loop = gobject.MainLoop()
477
 
        self.bus = dbus.SystemBus()
478
 
        mandos_dbus_objc = self.bus.get_object(
479
 
            self.busname, "/", follow_name_owner_changes=True)
480
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
481
 
                                          dbus_interface
482
 
                                          = server_interface)
483
 
        try:
484
 
            mandos_clients = (self.mandos_serv
485
 
                              .GetAllClientsWithProperties())
486
 
        except dbus.exceptions.DBusException:
487
 
            mandos_clients = dbus.Dictionary()
488
 
        
489
 
        (self.mandos_serv
490
 
         .connect_to_signal("ClientRemoved",
491
 
                            self.find_and_remove_client,
492
 
                            dbus_interface=server_interface,
493
 
                            byte_arrays=True))
494
 
        (self.mandos_serv
495
 
         .connect_to_signal("ClientAdded",
496
 
                            self.add_new_client,
497
 
                            dbus_interface=server_interface,
498
 
                            byte_arrays=True))
499
 
        (self.mandos_serv
500
 
         .connect_to_signal("ClientNotFound",
501
 
                            self.client_not_found,
502
 
                            dbus_interface=server_interface,
503
 
                            byte_arrays=True))
504
 
        for path, client in mandos_clients.iteritems():
505
 
            client_proxy_object = self.bus.get_object(self.busname,
506
 
                                                      path)
507
 
            self.add_client(MandosClientWidget(server_proxy_object
508
 
                                               =self.mandos_serv,
509
 
                                               proxy_object
510
 
                                               =client_proxy_object,
511
 
                                               properties=client,
512
 
                                               update_hook
513
 
                                               =self.refresh,
514
 
                                               delete_hook
515
 
                                               =self.remove_client,
516
 
                                               logger
517
 
                                               =self.log_message),
518
 
                            path=path)
519
 
    
520
 
    def client_not_found(self, fingerprint, address):
521
 
        self.log_message(("Client with address %s and fingerprint %s"
522
 
                          " could not be found" % (address,
523
 
                                                    fingerprint)))
524
 
    
525
 
    def rebuild(self):
526
 
        """This rebuilds the User Interface.
527
 
        Call this when the widget layout needs to change"""
528
 
        self.uilist = []
529
 
        #self.uilist.append(urwid.ListBox(self.clients))
530
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
531
 
                                                          clients),
532
 
                                       #header=urwid.Divider(),
533
 
                                       header=None,
534
 
                                       footer=
535
 
                                       urwid.Divider(div_char=
536
 
                                                     self.divider)))
537
 
        if self.log_visible:
538
 
            self.uilist.append(self.logbox)
539
 
            pass
540
 
        self.topwidget = urwid.Pile(self.uilist)
541
 
    
542
 
    def log_message(self, message):
543
 
        timestamp = datetime.datetime.now().isoformat()
544
 
        self.log_message_raw(timestamp + ": " + message)
545
 
    
546
 
    def log_message_raw(self, markup):
547
 
        """Add a log message to the log buffer."""
548
 
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
549
 
        if (self.max_log_length
550
 
            and len(self.log) > self.max_log_length):
551
 
            del self.log[0:len(self.log)-self.max_log_length-1]
552
 
        self.logbox.set_focus(len(self.logbox.body.contents),
553
 
                              coming_from="above")
554
 
        self.refresh()
555
 
    
556
 
    def toggle_log_display(self):
557
 
        """Toggle visibility of the log buffer."""
558
 
        self.log_visible = not self.log_visible
559
 
        self.rebuild()
560
 
        #self.log_message("Log visibility changed to: "
561
 
        #                 + unicode(self.log_visible))
562
 
    
563
 
    def change_log_display(self):
564
 
        """Change type of log display.
565
 
        Currently, this toggles wrapping of text lines."""
566
 
        if self.log_wrap == "clip":
567
 
            self.log_wrap = "any"
568
 
        else:
569
 
            self.log_wrap = "clip"
570
 
        for textwidget in self.log:
571
 
            textwidget.set_wrap_mode(self.log_wrap)
572
 
        #self.log_message("Wrap mode: " + self.log_wrap)
573
 
    
574
 
    def find_and_remove_client(self, path, name):
575
 
        """Find an client from its object path and remove it.
576
 
        
577
 
        This is connected to the ClientRemoved signal from the
578
 
        Mandos server object."""
579
 
        try:
580
 
            client = self.clients_dict[path]
581
 
        except KeyError:
582
 
            # not found?
583
 
            return
584
 
        self.remove_client(client, path)
585
 
    
586
 
    def add_new_client(self, path):
587
 
        client_proxy_object = self.bus.get_object(self.busname, path)
588
 
        self.add_client(MandosClientWidget(server_proxy_object
589
 
                                           =self.mandos_serv,
590
 
                                           proxy_object
591
 
                                           =client_proxy_object,
592
 
                                           update_hook
593
 
                                           =self.refresh,
594
 
                                           delete_hook
595
 
                                           =self.remove_client,
596
 
                                           logger
597
 
                                           =self.log_message),
598
 
                        path=path)
599
 
    
600
 
    def add_client(self, client, path=None):
601
 
        self.clients.append(client)
602
 
        if path is None:
603
 
            path = client.proxy.object_path
604
 
        self.clients_dict[path] = client
605
 
        self.clients.sort(None, lambda c: c.properties["Name"])
606
 
        self.refresh()
607
 
    
608
 
    def remove_client(self, client, path=None):
609
 
        self.clients.remove(client)
610
 
        if path is None:
611
 
            path = client.proxy.object_path
612
 
        del self.clients_dict[path]
613
 
        if not self.clients_dict:
614
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
615
 
            # is completely emptied, we need to recreate it.
616
 
            self.clients = urwid.SimpleListWalker([])
617
 
            self.rebuild()
618
 
        self.refresh()
619
 
    
620
 
    def refresh(self):
621
 
        """Redraw the screen"""
622
 
        canvas = self.topwidget.render(self.size, focus=True)
623
 
        self.screen.draw_screen(self.size, canvas)
624
 
    
625
 
    def run(self):
626
 
        """Start the main loop and exit when it's done."""
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 == "\f":  # Ctrl-L
665
 
                self.refresh()
666
 
            elif key == "l" or key == "D":
667
 
                self.toggle_log_display()
668
 
                self.refresh()
669
 
            elif key == "w" or key == "i":
670
 
                self.change_log_display()
671
 
                self.refresh()
672
 
            elif key == "?" or key == "f1" or key == "esc":
673
 
                if not self.log_visible:
674
 
                    self.log_visible = True
675
 
                    self.rebuild()
676
 
                self.log_message_raw(("bold",
677
 
                                      "  ".
678
 
                                      join(("q: Quit",
679
 
                                            "?: Help",
680
 
                                            "l: Log window toggle",
681
 
                                            "TAB: Switch window",
682
 
                                            "w: Wrap (log)"))))
683
 
                self.log_message_raw(("bold",
684
 
                                      "  "
685
 
                                      .join(("Clients:",
686
 
                                             "+: Enable",
687
 
                                             "-: Disable",
688
 
                                             "R: Remove",
689
 
                                             "s: Start new checker",
690
 
                                             "S: Stop checker",
691
 
                                             "C: Checker OK",
692
 
                                             "a: Approve",
693
 
                                             "d: Deny"))))
694
 
                self.refresh()
695
 
            elif key == "tab":
696
 
                if self.topwidget.get_focus() is self.logbox:
697
 
                    self.topwidget.set_focus(0)
698
 
                else:
699
 
                    self.topwidget.set_focus(self.logbox)
700
 
                self.refresh()
701
 
            #elif (key == "end" or key == "meta >" or key == "G"
702
 
            #      or key == ">"):
703
 
            #    pass            # xxx end-of-buffer
704
 
            #elif (key == "home" or key == "meta <" or key == "g"
705
 
            #      or key == "<"):
706
 
            #    pass            # xxx beginning-of-buffer
707
 
            #elif key == "ctrl e" or key == "$":
708
 
            #    pass            # xxx move-end-of-line
709
 
            #elif key == "ctrl a" or key == "^":
710
 
            #    pass            # xxx move-beginning-of-line
711
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
712
 
            #    pass            # xxx left
713
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
714
 
            #    pass            # xxx right
715
 
            #elif key == "a":
716
 
            #    pass            # scroll up log
717
 
            #elif key == "z":
718
 
            #    pass            # scroll down log
719
 
            elif self.topwidget.selectable():
720
 
                self.topwidget.keypress(self.size, key)
721
 
                self.refresh()
722
 
        return True
723
 
 
724
 
ui = UserInterface()
725
 
try:
726
 
    ui.run()
727
 
except KeyboardInterrupt:
728
 
    ui.screen.stop()
729
 
except Exception, e:
730
 
    ui.log_message(unicode(e))
731
 
    ui.screen.stop()
732
 
    raise