/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 © 2009-2012 Teddy Hogeborn
7
 
# Copyright © 2009-2012 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
 
 
29
 
from future_builtins import *
30
 
 
31
 
import sys
32
 
import os
33
 
import signal
34
 
 
35
 
import datetime
36
 
 
37
 
import urwid.curses_display
38
 
import urwid
39
 
 
40
 
from dbus.mainloop.glib import DBusGMainLoop
41
 
import gobject
42
 
 
43
 
import dbus
44
 
 
45
 
import UserList
46
 
 
47
 
import locale
48
 
 
49
 
locale.setlocale(locale.LC_ALL, '')
50
 
 
51
 
import logging
52
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
53
 
 
54
 
# Some useful constants
55
 
domain = 'se.recompile'
56
 
server_interface = domain + '.Mandos'
57
 
client_interface = domain + '.Mandos.Client'
58
 
version = "1.6.0"
59
 
 
60
 
# Always run in monochrome mode
61
 
urwid.curses_display.curses.has_colors = lambda : False
62
 
 
63
 
# Urwid doesn't support blinking, but we want it.  Since we have no
64
 
# use for underline on its own, we make underline also always blink.
65
 
urwid.curses_display.curses.A_UNDERLINE |= (
66
 
    urwid.curses_display.curses.A_BLINK)
67
 
 
68
 
def isoformat_to_datetime(iso):
69
 
    "Parse an ISO 8601 date string to a datetime.datetime()"
70
 
    if not iso:
71
 
        return None
72
 
    d, t = iso.split("T", 1)
73
 
    year, month, day = d.split("-", 2)
74
 
    hour, minute, second = t.split(":", 2)
75
 
    second, fraction = divmod(float(second), 1)
76
 
    return datetime.datetime(int(year),
77
 
                             int(month),
78
 
                             int(day),
79
 
                             int(hour),
80
 
                             int(minute),
81
 
                             int(second),           # Whole seconds
82
 
                             int(fraction*1000000)) # Microseconds
83
 
 
84
 
class MandosClientPropertyCache(object):
85
 
    """This wraps a Mandos Client D-Bus proxy object, caches the
86
 
    properties and calls a hook function when any of them are
87
 
    changed.
88
 
    """
89
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
90
 
        self.proxy = proxy_object # Mandos Client proxy object
91
 
        self.properties = dict() if properties is None else properties
92
 
        self.property_changed_match = (
93
 
            self.proxy.connect_to_signal("PropertyChanged",
94
 
                                         self._property_changed,
95
 
                                         client_interface,
96
 
                                         byte_arrays=True))
97
 
        
98
 
        if properties is None:
99
 
            self.properties.update(
100
 
                self.proxy.GetAll(client_interface,
101
 
                                  dbus_interface
102
 
                                  = dbus.PROPERTIES_IFACE))
103
 
        
104
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
105
 
    
106
 
    def _property_changed(self, property, value):
107
 
        """Helper which takes positional arguments"""
108
 
        return self.property_changed(property=property, value=value)
109
 
    
110
 
    def property_changed(self, property=None, value=None):
111
 
        """This is called whenever we get a PropertyChanged signal
112
 
        It updates the changed property in the "properties" dict.
113
 
        """
114
 
        # Update properties dict with new value
115
 
        self.properties[property] = value
116
 
    
117
 
    def delete(self):
118
 
        self.property_changed_match.remove()
119
 
 
120
 
 
121
 
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
122
 
    """A Mandos Client which is visible on the screen.
123
 
    """
124
 
    
125
 
    def __init__(self, server_proxy_object=None, update_hook=None,
126
 
                 delete_hook=None, logger=None, **kwargs):
127
 
        # Called on update
128
 
        self.update_hook = update_hook
129
 
        # Called on delete
130
 
        self.delete_hook = delete_hook
131
 
        # Mandos Server proxy object
132
 
        self.server_proxy_object = server_proxy_object
133
 
        # Logger
134
 
        self.logger = logger
135
 
        
136
 
        self._update_timer_callback_tag = None
137
 
        
138
 
        # The widget shown normally
139
 
        self._text_widget = urwid.Text("")
140
 
        # The widget shown when we have focus
141
 
        self._focus_text_widget = urwid.Text("")
142
 
        super(MandosClientWidget, self).__init__(**kwargs)
143
 
        self.update()
144
 
        self.opened = False
145
 
        
146
 
        self.match_objects = (
147
 
            self.proxy.connect_to_signal("CheckerCompleted",
148
 
                                         self.checker_completed,
149
 
                                         client_interface,
150
 
                                         byte_arrays=True),
151
 
            self.proxy.connect_to_signal("CheckerStarted",
152
 
                                         self.checker_started,
153
 
                                         client_interface,
154
 
                                         byte_arrays=True),
155
 
            self.proxy.connect_to_signal("GotSecret",
156
 
                                         self.got_secret,
157
 
                                         client_interface,
158
 
                                         byte_arrays=True),
159
 
            self.proxy.connect_to_signal("NeedApproval",
160
 
                                         self.need_approval,
161
 
                                         client_interface,
162
 
                                         byte_arrays=True),
163
 
            self.proxy.connect_to_signal("Rejected",
164
 
                                         self.rejected,
165
 
                                         client_interface,
166
 
                                         byte_arrays=True))
167
 
        #self.logger('Created client {0}'
168
 
        #            .format(self.properties["Name"]))
169
 
    
170
 
    def using_timer(self, flag):
171
 
        """Call this method with True or False when timer should be
172
 
        activated or deactivated.
173
 
        """
174
 
        if flag and self._update_timer_callback_tag is None:
175
 
            # Will update the shown timer value every second
176
 
            self._update_timer_callback_tag = (gobject.timeout_add
177
 
                                               (1000,
178
 
                                                self.update_timer))
179
 
        elif not (flag or self._update_timer_callback_tag is None):
180
 
            gobject.source_remove(self._update_timer_callback_tag)
181
 
            self._update_timer_callback_tag = None
182
 
    
183
 
    def checker_completed(self, exitstatus, condition, command):
184
 
        if exitstatus == 0:
185
 
            self.update()
186
 
            return
187
 
        # Checker failed
188
 
        if os.WIFEXITED(condition):
189
 
            self.logger('Checker for client {0} (command "{1}")'
190
 
                        ' failed with exit code {2}'
191
 
                        .format(self.properties["Name"], command,
192
 
                                os.WEXITSTATUS(condition)))
193
 
        elif os.WIFSIGNALED(condition):
194
 
            self.logger('Checker for client {0} (command "{1}") was'
195
 
                        ' killed by signal {2}'
196
 
                        .format(self.properties["Name"], command,
197
 
                                os.WTERMSIG(condition)))
198
 
        elif os.WCOREDUMP(condition):
199
 
            self.logger('Checker for client {0} (command "{1}")'
200
 
                        ' dumped core'
201
 
                        .format(self.properties["Name"], command))
202
 
        else:
203
 
            self.logger('Checker for client {0} completed'
204
 
                        ' mysteriously'
205
 
                        .format(self.properties["Name"]))
206
 
        self.update()
207
 
    
208
 
    def checker_started(self, command):
209
 
        """Server signals that a checker started. This could be useful
210
 
           to log in the future. """
211
 
        #self.logger('Client {0} started checker "{1}"'
212
 
        #            .format(self.properties["Name"],
213
 
        #                    unicode(command)))
214
 
        pass
215
 
    
216
 
    def got_secret(self):
217
 
        self.logger('Client {0} received its secret'
218
 
                    .format(self.properties["Name"]))
219
 
    
220
 
    def need_approval(self, timeout, default):
221
 
        if not default:
222
 
            message = 'Client {0} needs approval within {1} seconds'
223
 
        else:
224
 
            message = 'Client {0} will get its secret in {1} seconds'
225
 
        self.logger(message.format(self.properties["Name"],
226
 
                                   timeout/1000))
227
 
    
228
 
    def rejected(self, reason):
229
 
        self.logger('Client {0} was rejected; reason: {1}'
230
 
                    .format(self.properties["Name"], reason))
231
 
    
232
 
    def selectable(self):
233
 
        """Make this a "selectable" widget.
234
 
        This overrides the method from urwid.FlowWidget."""
235
 
        return True
236
 
    
237
 
    def rows(self, maxcolrow, focus=False):
238
 
        """How many rows this widget will occupy might depend on
239
 
        whether we have focus or not.
240
 
        This overrides the method from urwid.FlowWidget"""
241
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
242
 
    
243
 
    def current_widget(self, focus=False):
244
 
        if focus or self.opened:
245
 
            return self._focus_widget
246
 
        return self._widget
247
 
    
248
 
    def update(self):
249
 
        "Called when what is visible on the screen should be updated."
250
 
        # How to add standout mode to a style
251
 
        with_standout = { "normal": "standout",
252
 
                          "bold": "bold-standout",
253
 
                          "underline-blink":
254
 
                              "underline-blink-standout",
255
 
                          "bold-underline-blink":
256
 
                              "bold-underline-blink-standout",
257
 
                          }
258
 
        
259
 
        # Rebuild focus and non-focus widgets using current properties
260
 
        
261
 
        # Base part of a client. Name!
262
 
        base = '{name}: '.format(name=self.properties["Name"])
263
 
        if not self.properties["Enabled"]:
264
 
            message = "DISABLED"
265
 
            self.using_timer(False)
266
 
        elif self.properties["ApprovalPending"]:
267
 
            timeout = datetime.timedelta(milliseconds
268
 
                                         = self.properties
269
 
                                         ["ApprovalDelay"])
270
 
            last_approval_request = isoformat_to_datetime(
271
 
                self.properties["LastApprovalRequest"])
272
 
            if last_approval_request is not None:
273
 
                timer = max(timeout - (datetime.datetime.utcnow()
274
 
                                       - last_approval_request),
275
 
                            datetime.timedelta())
276
 
            else:
277
 
                timer = datetime.timedelta()
278
 
            if self.properties["ApprovedByDefault"]:
279
 
                message = "Approval in {0}. (d)eny?"
280
 
            else:
281
 
                message = "Denial in {0}. (a)pprove?"
282
 
            message = message.format(unicode(timer).rsplit(".", 1)[0])
283
 
            self.using_timer(True)
284
 
        elif self.properties["LastCheckerStatus"] != 0:
285
 
            # When checker has failed, show timer until client expires
286
 
            expires = self.properties["Expires"]
287
 
            if expires == "":
288
 
                timer = datetime.timedelta(0)
289
 
            else:
290
 
                expires = (datetime.datetime.strptime
291
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
292
 
                timer = max(expires - datetime.datetime.utcnow(),
293
 
                            datetime.timedelta())
294
 
            message = ('A checker has failed! Time until client'
295
 
                       ' gets disabled: {0}'
296
 
                       .format(unicode(timer).rsplit(".", 1)[0]))
297
 
            self.using_timer(True)
298
 
        else:
299
 
            message = "enabled"
300
 
            self.using_timer(False)
301
 
        self._text = "{0}{1}".format(base, message)
302
 
        
303
 
        if not urwid.supports_unicode():
304
 
            self._text = self._text.encode("ascii", "replace")
305
 
        textlist = [("normal", self._text)]
306
 
        self._text_widget.set_text(textlist)
307
 
        self._focus_text_widget.set_text([(with_standout[text[0]],
308
 
                                           text[1])
309
 
                                          if isinstance(text, tuple)
310
 
                                          else text
311
 
                                          for text in textlist])
312
 
        self._widget = self._text_widget
313
 
        self._focus_widget = urwid.AttrWrap(self._focus_text_widget,
314
 
                                            "standout")
315
 
        # Run update hook, if any
316
 
        if self.update_hook is not None:
317
 
            self.update_hook()
318
 
    
319
 
    def update_timer(self):
320
 
        """called by gobject. Will indefinitely loop until
321
 
        gobject.source_remove() on tag is called"""
322
 
        self.update()
323
 
        return True             # Keep calling this
324
 
    
325
 
    def delete(self, **kwargs):
326
 
        if self._update_timer_callback_tag is not None:
327
 
            gobject.source_remove(self._update_timer_callback_tag)
328
 
            self._update_timer_callback_tag = None
329
 
        for match in self.match_objects:
330
 
            match.remove()
331
 
        self.match_objects = ()
332
 
        if self.delete_hook is not None:
333
 
            self.delete_hook(self)
334
 
        return super(MandosClientWidget, self).delete(**kwargs)
335
 
    
336
 
    def render(self, maxcolrow, focus=False):
337
 
        """Render differently if we have focus.
338
 
        This overrides the method from urwid.FlowWidget"""
339
 
        return self.current_widget(focus).render(maxcolrow,
340
 
                                                 focus=focus)
341
 
    
342
 
    def keypress(self, maxcolrow, key):
343
 
        """Handle keys.
344
 
        This overrides the method from urwid.FlowWidget"""
345
 
        if key == "+":
346
 
            self.proxy.Enable(dbus_interface = client_interface,
347
 
                              ignore_reply=True)
348
 
        elif key == "-":
349
 
            self.proxy.Disable(dbus_interface = client_interface,
350
 
                               ignore_reply=True)
351
 
        elif key == "a":
352
 
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
353
 
                               dbus_interface = client_interface,
354
 
                               ignore_reply=True)
355
 
        elif key == "d":
356
 
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
357
 
                                  dbus_interface = client_interface,
358
 
                               ignore_reply=True)
359
 
        elif key == "R" or key == "_" or key == "ctrl k":
360
 
            self.server_proxy_object.RemoveClient(self.proxy
361
 
                                                  .object_path,
362
 
                                                  ignore_reply=True)
363
 
        elif key == "s":
364
 
            self.proxy.StartChecker(dbus_interface = client_interface,
365
 
                                    ignore_reply=True)
366
 
        elif key == "S":
367
 
            self.proxy.StopChecker(dbus_interface = client_interface,
368
 
                                   ignore_reply=True)
369
 
        elif key == "C":
370
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
371
 
                                 ignore_reply=True)
372
 
        # xxx
373
 
#         elif key == "p" or key == "=":
374
 
#             self.proxy.pause()
375
 
#         elif key == "u" or key == ":":
376
 
#             self.proxy.unpause()
377
 
#         elif key == "RET":
378
 
#             self.open()
379
 
        else:
380
 
            return key
381
 
    
382
 
    def property_changed(self, property=None, **kwargs):
383
 
        """Call self.update() if old value is not new value.
384
 
        This overrides the method from MandosClientPropertyCache"""
385
 
        property_name = unicode(property)
386
 
        old_value = self.properties.get(property_name)
387
 
        super(MandosClientWidget, self).property_changed(
388
 
            property=property, **kwargs)
389
 
        if self.properties.get(property_name) != old_value:
390
 
            self.update()
391
 
 
392
 
 
393
 
class ConstrainedListBox(urwid.ListBox):
394
 
    """Like a normal urwid.ListBox, but will consume all "up" or
395
 
    "down" key presses, thus not allowing any containing widgets to
396
 
    use them as an excuse to shift focus away from this widget.
397
 
    """
398
 
    def keypress(self, *args, **kwargs):
399
 
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
400
 
        if ret in ("up", "down"):
401
 
            return
402
 
        return ret
403
 
 
404
 
 
405
 
class UserInterface(object):
406
 
    """This is the entire user interface - the whole screen
407
 
    with boxes, lists of client widgets, etc.
408
 
    """
409
 
    def __init__(self, max_log_length=1000):
410
 
        DBusGMainLoop(set_as_default=True)
411
 
        
412
 
        self.screen = urwid.curses_display.Screen()
413
 
        
414
 
        self.screen.register_palette((
415
 
                ("normal",
416
 
                 "default", "default", None),
417
 
                ("bold",
418
 
                 "default", "default", "bold"),
419
 
                ("underline-blink",
420
 
                 "default", "default", "underline"),
421
 
                ("standout",
422
 
                 "default", "default", "standout"),
423
 
                ("bold-underline-blink",
424
 
                 "default", "default", ("bold", "underline")),
425
 
                ("bold-standout",
426
 
                 "default", "default", ("bold", "standout")),
427
 
                ("underline-blink-standout",
428
 
                 "default", "default", ("underline", "standout")),
429
 
                ("bold-underline-blink-standout",
430
 
                 "default", "default", ("bold", "underline",
431
 
                                          "standout")),
432
 
                ))
433
 
        
434
 
        if urwid.supports_unicode():
435
 
            self.divider = "─" # \u2500
436
 
            #self.divider = "━" # \u2501
437
 
        else:
438
 
            #self.divider = "-" # \u002d
439
 
            self.divider = "_" # \u005f
440
 
        
441
 
        self.screen.start()
442
 
        
443
 
        self.size = self.screen.get_cols_rows()
444
 
        
445
 
        self.clients = urwid.SimpleListWalker([])
446
 
        self.clients_dict = {}
447
 
        
448
 
        # We will add Text widgets to this list
449
 
        self.log = []
450
 
        self.max_log_length = max_log_length
451
 
        
452
 
        # We keep a reference to the log widget so we can remove it
453
 
        # from the ListWalker without it getting destroyed
454
 
        self.logbox = ConstrainedListBox(self.log)
455
 
        
456
 
        # This keeps track of whether self.uilist currently has
457
 
        # self.logbox in it or not
458
 
        self.log_visible = True
459
 
        self.log_wrap = "any"
460
 
        
461
 
        self.rebuild()
462
 
        self.log_message_raw(("bold",
463
 
                              "Mandos Monitor version " + version))
464
 
        self.log_message_raw(("bold",
465
 
                              "q: Quit  ?: Help"))
466
 
        
467
 
        self.busname = domain + '.Mandos'
468
 
        self.main_loop = gobject.MainLoop()
469
 
    
470
 
    def client_not_found(self, fingerprint, address):
471
 
        self.log_message("Client with address {0} and fingerprint"
472
 
                         " {1} could not be found"
473
 
                         .format(address, fingerprint))
474
 
    
475
 
    def rebuild(self):
476
 
        """This rebuilds the User Interface.
477
 
        Call this when the widget layout needs to change"""
478
 
        self.uilist = []
479
 
        #self.uilist.append(urwid.ListBox(self.clients))
480
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
481
 
                                                          clients),
482
 
                                       #header=urwid.Divider(),
483
 
                                       header=None,
484
 
                                       footer=
485
 
                                       urwid.Divider(div_char=
486
 
                                                     self.divider)))
487
 
        if self.log_visible:
488
 
            self.uilist.append(self.logbox)
489
 
        self.topwidget = urwid.Pile(self.uilist)
490
 
    
491
 
    def log_message(self, message):
492
 
        """Log message formatted with timestamp"""
493
 
        timestamp = datetime.datetime.now().isoformat()
494
 
        self.log_message_raw(timestamp + ": " + message)
495
 
    
496
 
    def log_message_raw(self, markup):
497
 
        """Add a log message to the log buffer."""
498
 
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
499
 
        if (self.max_log_length
500
 
            and len(self.log) > self.max_log_length):
501
 
            del self.log[0:len(self.log)-self.max_log_length-1]
502
 
        self.logbox.set_focus(len(self.logbox.body.contents),
503
 
                              coming_from="above")
504
 
        self.refresh()
505
 
    
506
 
    def toggle_log_display(self):
507
 
        """Toggle visibility of the log buffer."""
508
 
        self.log_visible = not self.log_visible
509
 
        self.rebuild()
510
 
        #self.log_message("Log visibility changed to: "
511
 
        #                 + unicode(self.log_visible))
512
 
    
513
 
    def change_log_display(self):
514
 
        """Change type of log display.
515
 
        Currently, this toggles wrapping of text lines."""
516
 
        if self.log_wrap == "clip":
517
 
            self.log_wrap = "any"
518
 
        else:
519
 
            self.log_wrap = "clip"
520
 
        for textwidget in self.log:
521
 
            textwidget.set_wrap_mode(self.log_wrap)
522
 
        #self.log_message("Wrap mode: " + self.log_wrap)
523
 
    
524
 
    def find_and_remove_client(self, path, name):
525
 
        """Find a client by its object path and remove it.
526
 
        
527
 
        This is connected to the ClientRemoved signal from the
528
 
        Mandos server object."""
529
 
        try:
530
 
            client = self.clients_dict[path]
531
 
        except KeyError:
532
 
            # not found?
533
 
            self.log_message("Unknown client {0!r} ({1!r}) removed"
534
 
                             .format(name, path))
535
 
            return
536
 
        client.delete()
537
 
    
538
 
    def add_new_client(self, path):
539
 
        client_proxy_object = self.bus.get_object(self.busname, path)
540
 
        self.add_client(MandosClientWidget(server_proxy_object
541
 
                                           =self.mandos_serv,
542
 
                                           proxy_object
543
 
                                           =client_proxy_object,
544
 
                                           update_hook
545
 
                                           =self.refresh,
546
 
                                           delete_hook
547
 
                                           =self.remove_client,
548
 
                                           logger
549
 
                                           =self.log_message),
550
 
                        path=path)
551
 
    
552
 
    def add_client(self, client, path=None):
553
 
        self.clients.append(client)
554
 
        if path is None:
555
 
            path = client.proxy.object_path
556
 
        self.clients_dict[path] = client
557
 
        self.clients.sort(None, lambda c: c.properties["Name"])
558
 
        self.refresh()
559
 
    
560
 
    def remove_client(self, client, path=None):
561
 
        self.clients.remove(client)
562
 
        if path is None:
563
 
            path = client.proxy.object_path
564
 
        del self.clients_dict[path]
565
 
        if not self.clients_dict:
566
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
567
 
            # is completely emptied, we need to recreate it.
568
 
            self.clients = urwid.SimpleListWalker([])
569
 
            self.rebuild()
570
 
        self.refresh()
571
 
    
572
 
    def refresh(self):
573
 
        """Redraw the screen"""
574
 
        canvas = self.topwidget.render(self.size, focus=True)
575
 
        self.screen.draw_screen(self.size, canvas)
576
 
    
577
 
    def run(self):
578
 
        """Start the main loop and exit when it's done."""
579
 
        self.bus = dbus.SystemBus()
580
 
        mandos_dbus_objc = self.bus.get_object(
581
 
            self.busname, "/", follow_name_owner_changes=True)
582
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
583
 
                                          dbus_interface
584
 
                                          = server_interface)
585
 
        try:
586
 
            mandos_clients = (self.mandos_serv
587
 
                              .GetAllClientsWithProperties())
588
 
            if not mandos_clients:
589
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
590
 
        except dbus.exceptions.DBusException:
591
 
            self.log_message_raw(("bold", "Note: No Mandos servers running."))
592
 
            mandos_clients = dbus.Dictionary()
593
 
        
594
 
        (self.mandos_serv
595
 
         .connect_to_signal("ClientRemoved",
596
 
                            self.find_and_remove_client,
597
 
                            dbus_interface=server_interface,
598
 
                            byte_arrays=True))
599
 
        (self.mandos_serv
600
 
         .connect_to_signal("ClientAdded",
601
 
                            self.add_new_client,
602
 
                            dbus_interface=server_interface,
603
 
                            byte_arrays=True))
604
 
        (self.mandos_serv
605
 
         .connect_to_signal("ClientNotFound",
606
 
                            self.client_not_found,
607
 
                            dbus_interface=server_interface,
608
 
                            byte_arrays=True))
609
 
        for path, client in mandos_clients.iteritems():
610
 
            client_proxy_object = self.bus.get_object(self.busname,
611
 
                                                      path)
612
 
            self.add_client(MandosClientWidget(server_proxy_object
613
 
                                               =self.mandos_serv,
614
 
                                               proxy_object
615
 
                                               =client_proxy_object,
616
 
                                               properties=client,
617
 
                                               update_hook
618
 
                                               =self.refresh,
619
 
                                               delete_hook
620
 
                                               =self.remove_client,
621
 
                                               logger
622
 
                                               =self.log_message),
623
 
                            path=path)
624
 
        
625
 
        self.refresh()
626
 
        self._input_callback_tag = (gobject.io_add_watch
627
 
                                    (sys.stdin.fileno(),
628
 
                                     gobject.IO_IN,
629
 
                                     self.process_input))
630
 
        self.main_loop.run()
631
 
        # Main loop has finished, we should close everything now
632
 
        gobject.source_remove(self._input_callback_tag)
633
 
        self.screen.stop()
634
 
    
635
 
    def stop(self):
636
 
        self.main_loop.quit()
637
 
    
638
 
    def process_input(self, source, condition):
639
 
        keys = self.screen.get_input()
640
 
        translations = { "ctrl n": "down",      # Emacs
641
 
                         "ctrl p": "up",        # Emacs
642
 
                         "ctrl v": "page down", # Emacs
643
 
                         "meta v": "page up",   # Emacs
644
 
                         " ": "page down",      # less
645
 
                         "f": "page down",      # less
646
 
                         "b": "page up",        # less
647
 
                         "j": "down",           # vi
648
 
                         "k": "up",             # vi
649
 
                         }
650
 
        for key in keys:
651
 
            try:
652
 
                key = translations[key]
653
 
            except KeyError:    # :-)
654
 
                pass
655
 
            
656
 
            if key == "q" or key == "Q":
657
 
                self.stop()
658
 
                break
659
 
            elif key == "window resize":
660
 
                self.size = self.screen.get_cols_rows()
661
 
                self.refresh()
662
 
            elif key == "\f":  # Ctrl-L
663
 
                self.refresh()
664
 
            elif key == "l" or key == "D":
665
 
                self.toggle_log_display()
666
 
                self.refresh()
667
 
            elif key == "w" or key == "i":
668
 
                self.change_log_display()
669
 
                self.refresh()
670
 
            elif key == "?" or key == "f1" or key == "esc":
671
 
                if not self.log_visible:
672
 
                    self.log_visible = True
673
 
                    self.rebuild()
674
 
                self.log_message_raw(("bold",
675
 
                                      "  ".
676
 
                                      join(("q: Quit",
677
 
                                            "?: Help",
678
 
                                            "l: Log window toggle",
679
 
                                            "TAB: Switch window",
680
 
                                            "w: Wrap (log)"))))
681
 
                self.log_message_raw(("bold",
682
 
                                      "  "
683
 
                                      .join(("Clients:",
684
 
                                             "+: Enable",
685
 
                                             "-: Disable",
686
 
                                             "R: Remove",
687
 
                                             "s: Start new checker",
688
 
                                             "S: Stop checker",
689
 
                                             "C: Checker OK",
690
 
                                             "a: Approve",
691
 
                                             "d: Deny"))))
692
 
                self.refresh()
693
 
            elif key == "tab":
694
 
                if self.topwidget.get_focus() is self.logbox:
695
 
                    self.topwidget.set_focus(0)
696
 
                else:
697
 
                    self.topwidget.set_focus(self.logbox)
698
 
                self.refresh()
699
 
            #elif (key == "end" or key == "meta >" or key == "G"
700
 
            #      or key == ">"):
701
 
            #    pass            # xxx end-of-buffer
702
 
            #elif (key == "home" or key == "meta <" or key == "g"
703
 
            #      or key == "<"):
704
 
            #    pass            # xxx beginning-of-buffer
705
 
            #elif key == "ctrl e" or key == "$":
706
 
            #    pass            # xxx move-end-of-line
707
 
            #elif key == "ctrl a" or key == "^":
708
 
            #    pass            # xxx move-beginning-of-line
709
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
710
 
            #    pass            # xxx left
711
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
712
 
            #    pass            # xxx right
713
 
            #elif key == "a":
714
 
            #    pass            # scroll up log
715
 
            #elif key == "z":
716
 
            #    pass            # scroll down log
717
 
            elif self.topwidget.selectable():
718
 
                self.topwidget.keypress(self.size, key)
719
 
                self.refresh()
720
 
        return True
721
 
 
722
 
ui = UserInterface()
723
 
try:
724
 
    ui.run()
725
 
except KeyboardInterrupt:
726
 
    ui.screen.stop()
727
 
except Exception, e:
728
 
    ui.log_message(unicode(e))
729
 
    ui.screen.stop()
730
 
    raise