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  • Committer: Teddy Hogeborn
  • Date: 2008-09-04 13:36:59 UTC
  • Revision ID: teddy@fukt.bsnet.se-20080904133659-0omre4j6luosb20q
* mandos-clients.conf.xml (OPTIONS): Improved spelling.

* mandos.conf.xml (BUGS): - '' -

* mandos.xml (BUGS): - '' -

* plugin-runner.xml (NAME): Fix spelling by changing wording.
  (OPTIONS): Improved spelling.
  (EXAMPLE): Do not use obsolete "--keydir" option.  Improved wording.

* plugins.d/password-prompt.xml (DESCRIPTION): Improved spelling.
  (EXAMPLE): Add <acronym> tag.
  (SECURITY): Improved spelling.

* plugins.d/password-request.xml (SYNOPSIS): Changed replaceable to
                                             match OPTIONS section.
  (DESCRIPTION, OVERVIEW): Improved spelling.

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1
 
#!/usr/bin/python
2
 
# -*- mode: python; coding: utf-8 -*-
3
 
#
4
 
# Mandos Monitor - Control and monitor the Mandos server
5
 
#
6
 
# Copyright © 2009-2016 Teddy Hogeborn
7
 
# Copyright © 2009-2016 Björn Påhlsson
8
 
#
9
 
# This program is free software: you can redistribute it and/or modify
10
 
# it under the terms of the GNU General Public License as published by
11
 
# the Free Software Foundation, either version 3 of the License, or
12
 
# (at your option) any later version.
13
 
#
14
 
#     This program is distributed in the hope that it will be useful,
15
 
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
16
 
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
 
#     GNU General Public License for more details.
18
 
#
19
 
# You should have received a copy of the GNU General Public License
20
 
# along with this program.  If not, see
21
 
# <http://www.gnu.org/licenses/>.
22
 
#
23
 
# Contact the authors at <mandos@recompile.se>.
24
 
#
25
 
 
26
 
from __future__ import (division, absolute_import, print_function,
27
 
                        unicode_literals)
28
 
try:
29
 
    from future_builtins import *
30
 
except ImportError:
31
 
    pass
32
 
 
33
 
import sys
34
 
import os
35
 
 
36
 
import datetime
37
 
 
38
 
import urwid.curses_display
39
 
import urwid
40
 
 
41
 
from dbus.mainloop.glib import DBusGMainLoop
42
 
from gi.repository import GLib
43
 
 
44
 
import dbus
45
 
 
46
 
import locale
47
 
 
48
 
import logging
49
 
 
50
 
if sys.version_info.major == 2:
51
 
    str = unicode
52
 
 
53
 
locale.setlocale(locale.LC_ALL, '')
54
 
 
55
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
56
 
 
57
 
# Some useful constants
58
 
domain = 'se.recompile'
59
 
server_interface = domain + '.Mandos'
60
 
client_interface = domain + '.Mandos.Client'
61
 
version = "1.7.10"
62
 
 
63
 
try:
64
 
    dbus.OBJECT_MANAGER_IFACE
65
 
except AttributeError:
66
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
67
 
 
68
 
 
69
 
def isoformat_to_datetime(iso):
70
 
    "Parse an ISO 8601 date string to a datetime.datetime()"
71
 
    if not iso:
72
 
        return None
73
 
    d, t = iso.split("T", 1)
74
 
    year, month, day = d.split("-", 2)
75
 
    hour, minute, second = t.split(":", 2)
76
 
    second, fraction = divmod(float(second), 1)
77
 
    return datetime.datetime(int(year),
78
 
                             int(month),
79
 
                             int(day),
80
 
                             int(hour),
81
 
                             int(minute),
82
 
                             int(second),            # Whole seconds
83
 
                             int(fraction*1000000))  # Microseconds
84
 
 
85
 
 
86
 
class MandosClientPropertyCache(object):
87
 
    """This wraps a Mandos Client D-Bus proxy object, caches the
88
 
    properties and calls a hook function when any of them are
89
 
    changed.
90
 
    """
91
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
92
 
        self.proxy = proxy_object  # Mandos Client proxy object
93
 
        self.properties = dict() if properties is None else properties
94
 
        self.property_changed_match = (
95
 
            self.proxy.connect_to_signal("PropertiesChanged",
96
 
                                         self.properties_changed,
97
 
                                         dbus.PROPERTIES_IFACE,
98
 
                                         byte_arrays=True))
99
 
 
100
 
        if properties is None:
101
 
            self.properties.update(self.proxy.GetAll(
102
 
                client_interface,
103
 
                dbus_interface=dbus.PROPERTIES_IFACE))
104
 
 
105
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
106
 
 
107
 
    def properties_changed(self, interface, properties, invalidated):
108
 
        """This is called whenever we get a PropertiesChanged signal
109
 
        It updates the changed properties in the "properties" dict.
110
 
        """
111
 
        # Update properties dict with new value
112
 
        if interface == client_interface:
113
 
            self.properties.update(properties)
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 {}'
166
 
                    .format(self.properties["Name"]), level=0)
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 = (GLib.timeout_add
175
 
                                               (1000,
176
 
                                                self.update_timer))
177
 
        elif not (flag or self._update_timer_callback_tag is None):
178
 
            GLib.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.logger('Checker for client {} (command "{}")'
184
 
                        ' succeeded'.format(self.properties["Name"],
185
 
                                            command), level=0)
186
 
            self.update()
187
 
            return
188
 
        # Checker failed
189
 
        if os.WIFEXITED(condition):
190
 
            self.logger('Checker for client {} (command "{}") failed'
191
 
                        ' with exit code {}'
192
 
                        .format(self.properties["Name"], command,
193
 
                                os.WEXITSTATUS(condition)))
194
 
        elif os.WIFSIGNALED(condition):
195
 
            self.logger('Checker for client {} (command "{}") was'
196
 
                        ' killed by signal {}'
197
 
                        .format(self.properties["Name"], command,
198
 
                                os.WTERMSIG(condition)))
199
 
        self.update()
200
 
 
201
 
    def checker_started(self, command):
202
 
        """Server signals that a checker started."""
203
 
        self.logger('Client {} started checker "{}"'
204
 
                    .format(self.properties["Name"],
205
 
                            command), level=0)
206
 
 
207
 
    def got_secret(self):
208
 
        self.logger('Client {} received its secret'
209
 
                    .format(self.properties["Name"]))
210
 
 
211
 
    def need_approval(self, timeout, default):
212
 
        if not default:
213
 
            message = 'Client {} needs approval within {} seconds'
214
 
        else:
215
 
            message = 'Client {} will get its secret in {} seconds'
216
 
        self.logger(message.format(self.properties["Name"],
217
 
                                   timeout/1000))
218
 
 
219
 
    def rejected(self, reason):
220
 
        self.logger('Client {} was rejected; reason: {}'
221
 
                    .format(self.properties["Name"], reason))
222
 
 
223
 
    def selectable(self):
224
 
        """Make this a "selectable" widget.
225
 
        This overrides the method from urwid.FlowWidget."""
226
 
        return True
227
 
 
228
 
    def rows(self, maxcolrow, focus=False):
229
 
        """How many rows this widget will occupy might depend on
230
 
        whether we have focus or not.
231
 
        This overrides the method from urwid.FlowWidget"""
232
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
233
 
 
234
 
    def current_widget(self, focus=False):
235
 
        if focus or self.opened:
236
 
            return self._focus_widget
237
 
        return self._widget
238
 
 
239
 
    def update(self):
240
 
        "Called when what is visible on the screen should be updated."
241
 
        # How to add standout mode to a style
242
 
        with_standout = {"normal": "standout",
243
 
                         "bold": "bold-standout",
244
 
                         "underline-blink":
245
 
                         "underline-blink-standout",
246
 
                         "bold-underline-blink":
247
 
                         "bold-underline-blink-standout",
248
 
                         }
249
 
 
250
 
        # Rebuild focus and non-focus widgets using current properties
251
 
 
252
 
        # Base part of a client. Name!
253
 
        base = '{name}: '.format(name=self.properties["Name"])
254
 
        if not self.properties["Enabled"]:
255
 
            message = "DISABLED"
256
 
            self.using_timer(False)
257
 
        elif self.properties["ApprovalPending"]:
258
 
            timeout = datetime.timedelta(
259
 
                milliseconds=self.properties["ApprovalDelay"])
260
 
            last_approval_request = isoformat_to_datetime(
261
 
                self.properties["LastApprovalRequest"])
262
 
            if last_approval_request is not None:
263
 
                timer = max(timeout - (datetime.datetime.utcnow()
264
 
                                       - last_approval_request),
265
 
                            datetime.timedelta())
266
 
            else:
267
 
                timer = datetime.timedelta()
268
 
            if self.properties["ApprovedByDefault"]:
269
 
                message = "Approval in {}. (d)eny?"
270
 
            else:
271
 
                message = "Denial in {}. (a)pprove?"
272
 
            message = message.format(str(timer).rsplit(".", 1)[0])
273
 
            self.using_timer(True)
274
 
        elif self.properties["LastCheckerStatus"] != 0:
275
 
            # When checker has failed, show timer until client expires
276
 
            expires = self.properties["Expires"]
277
 
            if expires == "":
278
 
                timer = datetime.timedelta(0)
279
 
            else:
280
 
                expires = (datetime.datetime.strptime
281
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
282
 
                timer = max(expires - datetime.datetime.utcnow(),
283
 
                            datetime.timedelta())
284
 
            message = ('A checker has failed! Time until client'
285
 
                       ' gets disabled: {}'
286
 
                       .format(str(timer).rsplit(".", 1)[0]))
287
 
            self.using_timer(True)
288
 
        else:
289
 
            message = "enabled"
290
 
            self.using_timer(False)
291
 
        self._text = "{}{}".format(base, message)
292
 
 
293
 
        if not urwid.supports_unicode():
294
 
            self._text = self._text.encode("ascii", "replace")
295
 
        textlist = [("normal", self._text)]
296
 
        self._text_widget.set_text(textlist)
297
 
        self._focus_text_widget.set_text([(with_standout[text[0]],
298
 
                                           text[1])
299
 
                                          if isinstance(text, tuple)
300
 
                                          else text
301
 
                                          for text in textlist])
302
 
        self._widget = self._text_widget
303
 
        self._focus_widget = urwid.AttrWrap(self._focus_text_widget,
304
 
                                            "standout")
305
 
        # Run update hook, if any
306
 
        if self.update_hook is not None:
307
 
            self.update_hook()
308
 
 
309
 
    def update_timer(self):
310
 
        """called by GLib. Will indefinitely loop until
311
 
        GLib.source_remove() on tag is called
312
 
        """
313
 
        self.update()
314
 
        return True             # Keep calling this
315
 
 
316
 
    def delete(self, **kwargs):
317
 
        if self._update_timer_callback_tag is not None:
318
 
            GLib.source_remove(self._update_timer_callback_tag)
319
 
            self._update_timer_callback_tag = None
320
 
        for match in self.match_objects:
321
 
            match.remove()
322
 
        self.match_objects = ()
323
 
        if self.delete_hook is not None:
324
 
            self.delete_hook(self)
325
 
        return super(MandosClientWidget, self).delete(**kwargs)
326
 
 
327
 
    def render(self, maxcolrow, focus=False):
328
 
        """Render differently if we have focus.
329
 
        This overrides the method from urwid.FlowWidget"""
330
 
        return self.current_widget(focus).render(maxcolrow,
331
 
                                                 focus=focus)
332
 
 
333
 
    def keypress(self, maxcolrow, key):
334
 
        """Handle keys.
335
 
        This overrides the method from urwid.FlowWidget"""
336
 
        if key == "+":
337
 
            self.proxy.Set(client_interface, "Enabled",
338
 
                           dbus.Boolean(True), ignore_reply=True,
339
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
340
 
        elif key == "-":
341
 
            self.proxy.Set(client_interface, "Enabled", False,
342
 
                           ignore_reply=True,
343
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
344
 
        elif key == "a":
345
 
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
346
 
                               dbus_interface=client_interface,
347
 
                               ignore_reply=True)
348
 
        elif key == "d":
349
 
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
350
 
                               dbus_interface=client_interface,
351
 
                               ignore_reply=True)
352
 
        elif key == "R" or key == "_" or key == "ctrl k":
353
 
            self.server_proxy_object.RemoveClient(self.proxy
354
 
                                                  .object_path,
355
 
                                                  ignore_reply=True)
356
 
        elif key == "s":
357
 
            self.proxy.Set(client_interface, "CheckerRunning",
358
 
                           dbus.Boolean(True), ignore_reply=True,
359
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
360
 
        elif key == "S":
361
 
            self.proxy.Set(client_interface, "CheckerRunning",
362
 
                           dbus.Boolean(False), ignore_reply=True,
363
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
364
 
        elif key == "C":
365
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
366
 
                                 ignore_reply=True)
367
 
        # xxx
368
 
#         elif key == "p" or key == "=":
369
 
#             self.proxy.pause()
370
 
#         elif key == "u" or key == ":":
371
 
#             self.proxy.unpause()
372
 
#         elif key == "RET":
373
 
#             self.open()
374
 
        else:
375
 
            return key
376
 
 
377
 
    def properties_changed(self, interface, properties, invalidated):
378
 
        """Call self.update() if any properties changed.
379
 
        This overrides the method from MandosClientPropertyCache"""
380
 
        old_values = {key: self.properties.get(key)
381
 
                      for key in properties.keys()}
382
 
        super(MandosClientWidget, self).properties_changed(
383
 
            interface, properties, invalidated)
384
 
        if any(old_values[key] != self.properties.get(key)
385
 
               for key in old_values):
386
 
            self.update()
387
 
 
388
 
 
389
 
class ConstrainedListBox(urwid.ListBox):
390
 
    """Like a normal urwid.ListBox, but will consume all "up" or
391
 
    "down" key presses, thus not allowing any containing widgets to
392
 
    use them as an excuse to shift focus away from this widget.
393
 
    """
394
 
    def keypress(self, *args, **kwargs):
395
 
        ret = (super(ConstrainedListBox, self)
396
 
               .keypress(*args, **kwargs))
397
 
        if ret in ("up", "down"):
398
 
            return
399
 
        return ret
400
 
 
401
 
 
402
 
class UserInterface(object):
403
 
    """This is the entire user interface - the whole screen
404
 
    with boxes, lists of client widgets, etc.
405
 
    """
406
 
    def __init__(self, max_log_length=1000, log_level=1):
407
 
        DBusGMainLoop(set_as_default=True)
408
 
 
409
 
        self.screen = urwid.curses_display.Screen()
410
 
 
411
 
        self.screen.register_palette((
412
 
                ("normal",
413
 
                 "default", "default", None),
414
 
                ("bold",
415
 
                 "bold", "default", "bold"),
416
 
                ("underline-blink",
417
 
                 "underline,blink", "default", "underline,blink"),
418
 
                ("standout",
419
 
                 "standout", "default", "standout"),
420
 
                ("bold-underline-blink",
421
 
                 "bold,underline,blink", "default",
422
 
                 "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
 
        else:
436
 
            self.divider = "_"  # \u005f
437
 
 
438
 
        self.screen.start()
439
 
 
440
 
        self.size = self.screen.get_cols_rows()
441
 
 
442
 
        self.clients = urwid.SimpleListWalker([])
443
 
        self.clients_dict = {}
444
 
 
445
 
        # We will add Text widgets to this list
446
 
        self.log = []
447
 
        self.max_log_length = max_log_length
448
 
 
449
 
        self.log_level = log_level
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 = GLib.MainLoop()
468
 
 
469
 
    def client_not_found(self, fingerprint, address):
470
 
        self.log_message("Client with address {} and fingerprint {}"
471
 
                         " 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=urwid.Divider(
484
 
                                           div_char=self.divider)))
485
 
        if self.log_visible:
486
 
            self.uilist.append(self.logbox)
487
 
        self.topwidget = urwid.Pile(self.uilist)
488
 
 
489
 
    def log_message(self, message, level=1):
490
 
        """Log message formatted with timestamp"""
491
 
        if level < self.log_level:
492
 
            return
493
 
        timestamp = datetime.datetime.now().isoformat()
494
 
        self.log_message_raw("{}: {}".format(timestamp, message),
495
 
                             level=level)
496
 
 
497
 
    def log_message_raw(self, markup, level=1):
498
 
        """Add a log message to the log buffer."""
499
 
        if level < self.log_level:
500
 
            return
501
 
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
502
 
        if self.max_log_length:
503
 
            if len(self.log) > self.max_log_length:
504
 
                del self.log[0:len(self.log)-self.max_log_length-1]
505
 
        self.logbox.set_focus(len(self.logbox.body.contents),
506
 
                              coming_from="above")
507
 
        self.refresh()
508
 
 
509
 
    def toggle_log_display(self):
510
 
        """Toggle visibility of the log buffer."""
511
 
        self.log_visible = not self.log_visible
512
 
        self.rebuild()
513
 
        self.log_message("Log visibility changed to: {}"
514
 
                         .format(self.log_visible), level=0)
515
 
 
516
 
    def change_log_display(self):
517
 
        """Change type of log display.
518
 
        Currently, this toggles wrapping of text lines."""
519
 
        if self.log_wrap == "clip":
520
 
            self.log_wrap = "any"
521
 
        else:
522
 
            self.log_wrap = "clip"
523
 
        for textwidget in self.log:
524
 
            textwidget.set_wrap_mode(self.log_wrap)
525
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
526
 
                         level=0)
527
 
 
528
 
    def find_and_remove_client(self, path, interfaces):
529
 
        """Find a client by its object path and remove it.
530
 
 
531
 
        This is connected to the InterfacesRemoved signal from the
532
 
        Mandos server object."""
533
 
        if client_interface not in interfaces:
534
 
            # Not a Mandos client object; ignore
535
 
            return
536
 
        try:
537
 
            client = self.clients_dict[path]
538
 
        except KeyError:
539
 
            # not found?
540
 
            self.log_message("Unknown client {!r} removed"
541
 
                             .format(path))
542
 
            return
543
 
        client.delete()
544
 
 
545
 
    def add_new_client(self, path, ifs_and_props):
546
 
        """Find a client by its object path and remove it.
547
 
 
548
 
        This is connected to the InterfacesAdded signal from the
549
 
        Mandos server object.
550
 
        """
551
 
        if client_interface not in ifs_and_props:
552
 
            # Not a Mandos client object; ignore
553
 
            return
554
 
        client_proxy_object = self.bus.get_object(self.busname, path)
555
 
        self.add_client(MandosClientWidget(
556
 
            server_proxy_object=self.mandos_serv,
557
 
            proxy_object=client_proxy_object,
558
 
            update_hook=self.refresh,
559
 
            delete_hook=self.remove_client,
560
 
            logger=self.log_message,
561
 
            properties=dict(ifs_and_props[client_interface])),
562
 
                        path=path)
563
 
 
564
 
    def add_client(self, client, path=None):
565
 
        self.clients.append(client)
566
 
        if path is None:
567
 
            path = client.proxy.object_path
568
 
        self.clients_dict[path] = client
569
 
        self.clients.sort(key=lambda c: c.properties["Name"])
570
 
        self.refresh()
571
 
 
572
 
    def remove_client(self, client, path=None):
573
 
        self.clients.remove(client)
574
 
        if path is None:
575
 
            path = client.proxy.object_path
576
 
        del self.clients_dict[path]
577
 
        self.refresh()
578
 
 
579
 
    def refresh(self):
580
 
        """Redraw the screen"""
581
 
        canvas = self.topwidget.render(self.size, focus=True)
582
 
        self.screen.draw_screen(self.size, canvas)
583
 
 
584
 
    def run(self):
585
 
        """Start the main loop and exit when it's done."""
586
 
        self.bus = dbus.SystemBus()
587
 
        mandos_dbus_objc = self.bus.get_object(
588
 
            self.busname, "/", follow_name_owner_changes=True)
589
 
        self.mandos_serv = dbus.Interface(
590
 
            mandos_dbus_objc, dbus_interface=server_interface)
591
 
        try:
592
 
            mandos_clients = (self.mandos_serv
593
 
                              .GetAllClientsWithProperties())
594
 
            if not mandos_clients:
595
 
                self.log_message_raw(("bold",
596
 
                                      "Note: Server has no clients."))
597
 
        except dbus.exceptions.DBusException:
598
 
            self.log_message_raw(("bold",
599
 
                                  "Note: No Mandos server running."))
600
 
            mandos_clients = dbus.Dictionary()
601
 
 
602
 
        (self.mandos_serv
603
 
         .connect_to_signal("InterfacesRemoved",
604
 
                            self.find_and_remove_client,
605
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
606
 
                            byte_arrays=True))
607
 
        (self.mandos_serv
608
 
         .connect_to_signal("InterfacesAdded",
609
 
                            self.add_new_client,
610
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
611
 
                            byte_arrays=True))
612
 
        (self.mandos_serv
613
 
         .connect_to_signal("ClientNotFound",
614
 
                            self.client_not_found,
615
 
                            dbus_interface=server_interface,
616
 
                            byte_arrays=True))
617
 
        for path, client in mandos_clients.items():
618
 
            client_proxy_object = self.bus.get_object(self.busname,
619
 
                                                      path)
620
 
            self.add_client(MandosClientWidget(
621
 
                server_proxy_object=self.mandos_serv,
622
 
                proxy_object=client_proxy_object,
623
 
                properties=client,
624
 
                update_hook=self.refresh,
625
 
                delete_hook=self.remove_client,
626
 
                logger=self.log_message),
627
 
                            path=path)
628
 
 
629
 
        self.refresh()
630
 
        self._input_callback_tag = (GLib.io_add_watch
631
 
                                    (sys.stdin.fileno(),
632
 
                                     GLib.IO_IN,
633
 
                                     self.process_input))
634
 
        self.main_loop.run()
635
 
        # Main loop has finished, we should close everything now
636
 
        GLib.source_remove(self._input_callback_tag)
637
 
        self.screen.stop()
638
 
 
639
 
    def stop(self):
640
 
        self.main_loop.quit()
641
 
 
642
 
    def process_input(self, source, condition):
643
 
        keys = self.screen.get_input()
644
 
        translations = {"ctrl n": "down",       # Emacs
645
 
                        "ctrl p": "up",         # Emacs
646
 
                        "ctrl v": "page down",  # Emacs
647
 
                        "meta v": "page up",    # Emacs
648
 
                        " ": "page down",       # less
649
 
                        "f": "page down",       # less
650
 
                        "b": "page up",         # less
651
 
                        "j": "down",            # vi
652
 
                        "k": "up",              # vi
653
 
                        }
654
 
        for key in keys:
655
 
            try:
656
 
                key = translations[key]
657
 
            except KeyError:    # :-)
658
 
                pass
659
 
 
660
 
            if key == "q" or key == "Q":
661
 
                self.stop()
662
 
                break
663
 
            elif key == "window resize":
664
 
                self.size = self.screen.get_cols_rows()
665
 
                self.refresh()
666
 
            elif key == "ctrl l":
667
 
                self.screen.clear()
668
 
                self.refresh()
669
 
            elif key == "l" or key == "D":
670
 
                self.toggle_log_display()
671
 
                self.refresh()
672
 
            elif key == "w" or key == "i":
673
 
                self.change_log_display()
674
 
                self.refresh()
675
 
            elif key == "?" or key == "f1" or key == "esc":
676
 
                if not self.log_visible:
677
 
                    self.log_visible = True
678
 
                    self.rebuild()
679
 
                self.log_message_raw(("bold",
680
 
                                      "  ".
681
 
                                      join(("q: Quit",
682
 
                                            "?: Help",
683
 
                                            "l: Log window toggle",
684
 
                                            "TAB: Switch window",
685
 
                                            "w: Wrap (log lines)",
686
 
                                            "v: Toggle verbose log",
687
 
                                            ))))
688
 
                self.log_message_raw(("bold",
689
 
                                      "  "
690
 
                                      .join(("Clients:",
691
 
                                             "+: Enable",
692
 
                                             "-: Disable",
693
 
                                             "R: Remove",
694
 
                                             "s: Start new checker",
695
 
                                             "S: Stop checker",
696
 
                                             "C: Checker OK",
697
 
                                             "a: Approve",
698
 
                                             "d: Deny"))))
699
 
                self.refresh()
700
 
            elif key == "tab":
701
 
                if self.topwidget.get_focus() is self.logbox:
702
 
                    self.topwidget.set_focus(0)
703
 
                else:
704
 
                    self.topwidget.set_focus(self.logbox)
705
 
                self.refresh()
706
 
            elif key == "v":
707
 
                if self.log_level == 0:
708
 
                    self.log_level = 1
709
 
                    self.log_message("Verbose mode: Off")
710
 
                else:
711
 
                    self.log_level = 0
712
 
                    self.log_message("Verbose mode: On")
713
 
            # elif (key == "end" or key == "meta >" or key == "G"
714
 
            #       or key == ">"):
715
 
            #     pass            # xxx end-of-buffer
716
 
            # elif (key == "home" or key == "meta <" or key == "g"
717
 
            #       or key == "<"):
718
 
            #     pass            # xxx beginning-of-buffer
719
 
            # elif key == "ctrl e" or key == "$":
720
 
            #     pass            # xxx move-end-of-line
721
 
            # elif key == "ctrl a" or key == "^":
722
 
            #     pass            # xxx move-beginning-of-line
723
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
724
 
            #     pass            # xxx left
725
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
726
 
            #     pass            # xxx right
727
 
            # elif key == "a":
728
 
            #     pass            # scroll up log
729
 
            # elif key == "z":
730
 
            #     pass            # scroll down log
731
 
            elif self.topwidget.selectable():
732
 
                self.topwidget.keypress(self.size, key)
733
 
                self.refresh()
734
 
        return True
735
 
 
736
 
ui = UserInterface()
737
 
try:
738
 
    ui.run()
739
 
except KeyboardInterrupt:
740
 
    ui.screen.stop()
741
 
except Exception as e:
742
 
    ui.log_message(str(e))
743
 
    ui.screen.stop()
744
 
    raise