/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 © 2009-2013 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
 
import signal
36
 
 
37
 
import datetime
38
 
 
39
 
import urwid.curses_display
40
 
import urwid
41
 
 
42
 
from dbus.mainloop.glib import DBusGMainLoop
43
 
try:
44
 
    import gobject
45
 
except ImportError:
46
 
    from gi.repository import GObject as gobject
47
 
 
48
 
import dbus
49
 
 
50
 
import locale
51
 
 
52
 
if sys.version_info[0] == 2:
53
 
    str = unicode
54
 
 
55
 
locale.setlocale(locale.LC_ALL, '')
56
 
 
57
 
import logging
58
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
59
 
 
60
 
# Some useful constants
61
 
domain = 'se.recompile'
62
 
server_interface = domain + '.Mandos'
63
 
client_interface = domain + '.Mandos.Client'
64
 
version = "1.6.3"
65
 
 
66
 
def isoformat_to_datetime(iso):
67
 
    "Parse an ISO 8601 date string to a datetime.datetime()"
68
 
    if not iso:
69
 
        return None
70
 
    d, t = iso.split("T", 1)
71
 
    year, month, day = d.split("-", 2)
72
 
    hour, minute, second = t.split(":", 2)
73
 
    second, fraction = divmod(float(second), 1)
74
 
    return datetime.datetime(int(year),
75
 
                             int(month),
76
 
                             int(day),
77
 
                             int(hour),
78
 
                             int(minute),
79
 
                             int(second),           # Whole seconds
80
 
                             int(fraction*1000000)) # Microseconds
81
 
 
82
 
class MandosClientPropertyCache(object):
83
 
    """This wraps a Mandos Client D-Bus proxy object, caches the
84
 
    properties and calls a hook function when any of them are
85
 
    changed.
86
 
    """
87
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
88
 
        self.proxy = proxy_object # Mandos Client proxy object
89
 
        self.properties = dict() if properties is None else properties
90
 
        self.property_changed_match = (
91
 
            self.proxy.connect_to_signal("PropertyChanged",
92
 
                                         self._property_changed,
93
 
                                         client_interface,
94
 
                                         byte_arrays=True))
95
 
        
96
 
        if properties is None:
97
 
            self.properties.update(
98
 
                self.proxy.GetAll(client_interface,
99
 
                                  dbus_interface
100
 
                                  = dbus.PROPERTIES_IFACE))
101
 
        
102
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
103
 
    
104
 
    def _property_changed(self, property, value):
105
 
        """Helper which takes positional arguments"""
106
 
        return self.property_changed(property=property, value=value)
107
 
    
108
 
    def property_changed(self, property=None, value=None):
109
 
        """This is called whenever we get a PropertyChanged signal
110
 
        It updates the changed property in the "properties" dict.
111
 
        """
112
 
        # Update properties dict with new value
113
 
        self.properties[property] = value
114
 
    
115
 
    def delete(self):
116
 
        self.property_changed_match.remove()
117
 
 
118
 
 
119
 
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
120
 
    """A Mandos Client which is visible on the screen.
121
 
    """
122
 
    
123
 
    def __init__(self, server_proxy_object=None, update_hook=None,
124
 
                 delete_hook=None, logger=None, **kwargs):
125
 
        # Called on update
126
 
        self.update_hook = update_hook
127
 
        # Called on delete
128
 
        self.delete_hook = delete_hook
129
 
        # Mandos Server proxy object
130
 
        self.server_proxy_object = server_proxy_object
131
 
        # Logger
132
 
        self.logger = logger
133
 
        
134
 
        self._update_timer_callback_tag = None
135
 
        
136
 
        # The widget shown normally
137
 
        self._text_widget = urwid.Text("")
138
 
        # The widget shown when we have focus
139
 
        self._focus_text_widget = urwid.Text("")
140
 
        super(MandosClientWidget, self).__init__(**kwargs)
141
 
        self.update()
142
 
        self.opened = False
143
 
        
144
 
        self.match_objects = (
145
 
            self.proxy.connect_to_signal("CheckerCompleted",
146
 
                                         self.checker_completed,
147
 
                                         client_interface,
148
 
                                         byte_arrays=True),
149
 
            self.proxy.connect_to_signal("CheckerStarted",
150
 
                                         self.checker_started,
151
 
                                         client_interface,
152
 
                                         byte_arrays=True),
153
 
            self.proxy.connect_to_signal("GotSecret",
154
 
                                         self.got_secret,
155
 
                                         client_interface,
156
 
                                         byte_arrays=True),
157
 
            self.proxy.connect_to_signal("NeedApproval",
158
 
                                         self.need_approval,
159
 
                                         client_interface,
160
 
                                         byte_arrays=True),
161
 
            self.proxy.connect_to_signal("Rejected",
162
 
                                         self.rejected,
163
 
                                         client_interface,
164
 
                                         byte_arrays=True))
165
 
        #self.logger('Created client {0}'
166
 
        #            .format(self.properties["Name"]))
167
 
    
168
 
    def using_timer(self, flag):
169
 
        """Call this method with True or False when timer should be
170
 
        activated or deactivated.
171
 
        """
172
 
        if flag and self._update_timer_callback_tag is None:
173
 
            # Will update the shown timer value every second
174
 
            self._update_timer_callback_tag = (gobject.timeout_add
175
 
                                               (1000,
176
 
                                                self.update_timer))
177
 
        elif not (flag or self._update_timer_callback_tag is None):
178
 
            gobject.source_remove(self._update_timer_callback_tag)
179
 
            self._update_timer_callback_tag = None
180
 
    
181
 
    def checker_completed(self, exitstatus, condition, command):
182
 
        if exitstatus == 0:
183
 
            self.update()
184
 
            return
185
 
        # Checker failed
186
 
        if os.WIFEXITED(condition):
187
 
            self.logger('Checker for client {0} (command "{1}")'
188
 
                        ' failed with exit code {2}'
189
 
                        .format(self.properties["Name"], command,
190
 
                                os.WEXITSTATUS(condition)))
191
 
        elif os.WIFSIGNALED(condition):
192
 
            self.logger('Checker for client {0} (command "{1}") was'
193
 
                        ' killed by signal {2}'
194
 
                        .format(self.properties["Name"], command,
195
 
                                os.WTERMSIG(condition)))
196
 
        elif os.WCOREDUMP(condition):
197
 
            self.logger('Checker for client {0} (command "{1}")'
198
 
                        ' dumped core'
199
 
                        .format(self.properties["Name"], command))
200
 
        else:
201
 
            self.logger('Checker for client {0} completed'
202
 
                        ' mysteriously'
203
 
                        .format(self.properties["Name"]))
204
 
        self.update()
205
 
    
206
 
    def checker_started(self, command):
207
 
        """Server signals that a checker started. This could be useful
208
 
           to log in the future. """
209
 
        #self.logger('Client {0} started checker "{1}"'
210
 
        #            .format(self.properties["Name"],
211
 
        #                    str(command)))
212
 
        pass
213
 
    
214
 
    def got_secret(self):
215
 
        self.logger('Client {0} received its secret'
216
 
                    .format(self.properties["Name"]))
217
 
    
218
 
    def need_approval(self, timeout, default):
219
 
        if not default:
220
 
            message = 'Client {0} needs approval within {1} seconds'
221
 
        else:
222
 
            message = 'Client {0} will get its secret in {1} seconds'
223
 
        self.logger(message.format(self.properties["Name"],
224
 
                                   timeout/1000))
225
 
    
226
 
    def rejected(self, reason):
227
 
        self.logger('Client {0} was rejected; reason: {1}'
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 {0}. (d)eny?"
278
 
            else:
279
 
                message = "Denial in {0}. (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: {0}'
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 = "{0}{1}".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):
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
 
        # We keep a reference to the log widget so we can remove it
452
 
        # from the ListWalker without it getting destroyed
453
 
        self.logbox = ConstrainedListBox(self.log)
454
 
        
455
 
        # This keeps track of whether self.uilist currently has
456
 
        # self.logbox in it or not
457
 
        self.log_visible = True
458
 
        self.log_wrap = "any"
459
 
        
460
 
        self.rebuild()
461
 
        self.log_message_raw(("bold",
462
 
                              "Mandos Monitor version " + version))
463
 
        self.log_message_raw(("bold",
464
 
                              "q: Quit  ?: Help"))
465
 
        
466
 
        self.busname = domain + '.Mandos'
467
 
        self.main_loop = gobject.MainLoop()
468
 
    
469
 
    def client_not_found(self, fingerprint, address):
470
 
        self.log_message("Client with address {0} and fingerprint"
471
 
                         " {1} could not be found"
472
 
                         .format(address, fingerprint))
473
 
    
474
 
    def rebuild(self):
475
 
        """This rebuilds the User Interface.
476
 
        Call this when the widget layout needs to change"""
477
 
        self.uilist = []
478
 
        #self.uilist.append(urwid.ListBox(self.clients))
479
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
480
 
                                                          clients),
481
 
                                       #header=urwid.Divider(),
482
 
                                       header=None,
483
 
                                       footer=
484
 
                                       urwid.Divider(div_char=
485
 
                                                     self.divider)))
486
 
        if self.log_visible:
487
 
            self.uilist.append(self.logbox)
488
 
        self.topwidget = urwid.Pile(self.uilist)
489
 
    
490
 
    def log_message(self, message):
491
 
        """Log message formatted with timestamp"""
492
 
        timestamp = datetime.datetime.now().isoformat()
493
 
        self.log_message_raw(timestamp + ": " + message)
494
 
    
495
 
    def log_message_raw(self, markup):
496
 
        """Add a log message to the log buffer."""
497
 
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
498
 
        if (self.max_log_length
499
 
            and len(self.log) > self.max_log_length):
500
 
            del self.log[0:len(self.log)-self.max_log_length-1]
501
 
        self.logbox.set_focus(len(self.logbox.body.contents),
502
 
                              coming_from="above")
503
 
        self.refresh()
504
 
    
505
 
    def toggle_log_display(self):
506
 
        """Toggle visibility of the log buffer."""
507
 
        self.log_visible = not self.log_visible
508
 
        self.rebuild()
509
 
        #self.log_message("Log visibility changed to: "
510
 
        #                 + str(self.log_visible))
511
 
    
512
 
    def change_log_display(self):
513
 
        """Change type of log display.
514
 
        Currently, this toggles wrapping of text lines."""
515
 
        if self.log_wrap == "clip":
516
 
            self.log_wrap = "any"
517
 
        else:
518
 
            self.log_wrap = "clip"
519
 
        for textwidget in self.log:
520
 
            textwidget.set_wrap_mode(self.log_wrap)
521
 
        #self.log_message("Wrap mode: " + self.log_wrap)
522
 
    
523
 
    def find_and_remove_client(self, path, name):
524
 
        """Find a client by its object path and remove it.
525
 
        
526
 
        This is connected to the ClientRemoved signal from the
527
 
        Mandos server object."""
528
 
        try:
529
 
            client = self.clients_dict[path]
530
 
        except KeyError:
531
 
            # not found?
532
 
            self.log_message("Unknown client {0!r} ({1!r}) removed"
533
 
                             .format(name, path))
534
 
            return
535
 
        client.delete()
536
 
    
537
 
    def add_new_client(self, path):
538
 
        client_proxy_object = self.bus.get_object(self.busname, path)
539
 
        self.add_client(MandosClientWidget(server_proxy_object
540
 
                                           =self.mandos_serv,
541
 
                                           proxy_object
542
 
                                           =client_proxy_object,
543
 
                                           update_hook
544
 
                                           =self.refresh,
545
 
                                           delete_hook
546
 
                                           =self.remove_client,
547
 
                                           logger
548
 
                                           =self.log_message),
549
 
                        path=path)
550
 
    
551
 
    def add_client(self, client, path=None):
552
 
        self.clients.append(client)
553
 
        if path is None:
554
 
            path = client.proxy.object_path
555
 
        self.clients_dict[path] = client
556
 
        self.clients.sort(key=lambda c: c.properties["Name"])
557
 
        self.refresh()
558
 
    
559
 
    def remove_client(self, client, path=None):
560
 
        self.clients.remove(client)
561
 
        if path is None:
562
 
            path = client.proxy.object_path
563
 
        del self.clients_dict[path]
564
 
        self.refresh()
565
 
    
566
 
    def refresh(self):
567
 
        """Redraw the screen"""
568
 
        canvas = self.topwidget.render(self.size, focus=True)
569
 
        self.screen.draw_screen(self.size, canvas)
570
 
    
571
 
    def run(self):
572
 
        """Start the main loop and exit when it's done."""
573
 
        self.bus = dbus.SystemBus()
574
 
        mandos_dbus_objc = self.bus.get_object(
575
 
            self.busname, "/", follow_name_owner_changes=True)
576
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
577
 
                                          dbus_interface
578
 
                                          = server_interface)
579
 
        try:
580
 
            mandos_clients = (self.mandos_serv
581
 
                              .GetAllClientsWithProperties())
582
 
            if not mandos_clients:
583
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
584
 
        except dbus.exceptions.DBusException:
585
 
            self.log_message_raw(("bold", "Note: No Mandos server running."))
586
 
            mandos_clients = dbus.Dictionary()
587
 
        
588
 
        (self.mandos_serv
589
 
         .connect_to_signal("ClientRemoved",
590
 
                            self.find_and_remove_client,
591
 
                            dbus_interface=server_interface,
592
 
                            byte_arrays=True))
593
 
        (self.mandos_serv
594
 
         .connect_to_signal("ClientAdded",
595
 
                            self.add_new_client,
596
 
                            dbus_interface=server_interface,
597
 
                            byte_arrays=True))
598
 
        (self.mandos_serv
599
 
         .connect_to_signal("ClientNotFound",
600
 
                            self.client_not_found,
601
 
                            dbus_interface=server_interface,
602
 
                            byte_arrays=True))
603
 
        for path, client in mandos_clients.items():
604
 
            client_proxy_object = self.bus.get_object(self.busname,
605
 
                                                      path)
606
 
            self.add_client(MandosClientWidget(server_proxy_object
607
 
                                               =self.mandos_serv,
608
 
                                               proxy_object
609
 
                                               =client_proxy_object,
610
 
                                               properties=client,
611
 
                                               update_hook
612
 
                                               =self.refresh,
613
 
                                               delete_hook
614
 
                                               =self.remove_client,
615
 
                                               logger
616
 
                                               =self.log_message),
617
 
                            path=path)
618
 
        
619
 
        self.refresh()
620
 
        self._input_callback_tag = (gobject.io_add_watch
621
 
                                    (sys.stdin.fileno(),
622
 
                                     gobject.IO_IN,
623
 
                                     self.process_input))
624
 
        self.main_loop.run()
625
 
        # Main loop has finished, we should close everything now
626
 
        gobject.source_remove(self._input_callback_tag)
627
 
        self.screen.stop()
628
 
    
629
 
    def stop(self):
630
 
        self.main_loop.quit()
631
 
    
632
 
    def process_input(self, source, condition):
633
 
        keys = self.screen.get_input()
634
 
        translations = { "ctrl n": "down",      # Emacs
635
 
                         "ctrl p": "up",        # Emacs
636
 
                         "ctrl v": "page down", # Emacs
637
 
                         "meta v": "page up",   # Emacs
638
 
                         " ": "page down",      # less
639
 
                         "f": "page down",      # less
640
 
                         "b": "page up",        # less
641
 
                         "j": "down",           # vi
642
 
                         "k": "up",             # vi
643
 
                         }
644
 
        for key in keys:
645
 
            try:
646
 
                key = translations[key]
647
 
            except KeyError:    # :-)
648
 
                pass
649
 
            
650
 
            if key == "q" or key == "Q":
651
 
                self.stop()
652
 
                break
653
 
            elif key == "window resize":
654
 
                self.size = self.screen.get_cols_rows()
655
 
                self.refresh()
656
 
            elif key == "\f":  # Ctrl-L
657
 
                self.refresh()
658
 
            elif key == "l" or key == "D":
659
 
                self.toggle_log_display()
660
 
                self.refresh()
661
 
            elif key == "w" or key == "i":
662
 
                self.change_log_display()
663
 
                self.refresh()
664
 
            elif key == "?" or key == "f1" or key == "esc":
665
 
                if not self.log_visible:
666
 
                    self.log_visible = True
667
 
                    self.rebuild()
668
 
                self.log_message_raw(("bold",
669
 
                                      "  ".
670
 
                                      join(("q: Quit",
671
 
                                            "?: Help",
672
 
                                            "l: Log window toggle",
673
 
                                            "TAB: Switch window",
674
 
                                            "w: Wrap (log)"))))
675
 
                self.log_message_raw(("bold",
676
 
                                      "  "
677
 
                                      .join(("Clients:",
678
 
                                             "+: Enable",
679
 
                                             "-: Disable",
680
 
                                             "R: Remove",
681
 
                                             "s: Start new checker",
682
 
                                             "S: Stop checker",
683
 
                                             "C: Checker OK",
684
 
                                             "a: Approve",
685
 
                                             "d: Deny"))))
686
 
                self.refresh()
687
 
            elif key == "tab":
688
 
                if self.topwidget.get_focus() is self.logbox:
689
 
                    self.topwidget.set_focus(0)
690
 
                else:
691
 
                    self.topwidget.set_focus(self.logbox)
692
 
                self.refresh()
693
 
            #elif (key == "end" or key == "meta >" or key == "G"
694
 
            #      or key == ">"):
695
 
            #    pass            # xxx end-of-buffer
696
 
            #elif (key == "home" or key == "meta <" or key == "g"
697
 
            #      or key == "<"):
698
 
            #    pass            # xxx beginning-of-buffer
699
 
            #elif key == "ctrl e" or key == "$":
700
 
            #    pass            # xxx move-end-of-line
701
 
            #elif key == "ctrl a" or key == "^":
702
 
            #    pass            # xxx move-beginning-of-line
703
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
704
 
            #    pass            # xxx left
705
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
706
 
            #    pass            # xxx right
707
 
            #elif key == "a":
708
 
            #    pass            # scroll up log
709
 
            #elif key == "z":
710
 
            #    pass            # scroll down log
711
 
            elif self.topwidget.selectable():
712
 
                self.topwidget.keypress(self.size, key)
713
 
                self.refresh()
714
 
        return True
715
 
 
716
 
ui = UserInterface()
717
 
try:
718
 
    ui.run()
719
 
except KeyboardInterrupt:
720
 
    ui.screen.stop()
721
 
except Exception as e:
722
 
    ui.log_message(str(e))
723
 
    ui.screen.stop()
724
 
    raise