/mandos/trunk

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/trunk

« back to all changes in this revision

Viewing changes to mandos-monitor

  • Committer: Teddy Hogeborn
  • Date: 2009-11-05 19:16:46 UTC
  • Revision ID: teddy@fukt.bsnet.se-20091105191646-5l7bkq5h4wkh3huh
* mandos-monitor: New prototype version of interactive server
                  administraton tool using D-Bus.

Show diffs side-by-side

added added

removed removed

Lines of Context:
1
1
#!/usr/bin/python
2
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 *
 
3
 
 
4
from __future__ import division, absolute_import, with_statement
30
5
 
31
6
import sys
32
 
import os
33
7
import signal
34
8
 
35
 
import datetime
36
 
 
37
9
import urwid.curses_display
38
10
import urwid
39
11
 
44
16
 
45
17
import UserList
46
18
 
47
 
import locale
48
 
 
49
 
locale.setlocale(locale.LC_ALL, '')
50
 
 
51
 
import logging
52
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
53
 
 
54
19
# Some useful constants
55
 
domain = 'se.recompile'
 
20
domain = 'se.bsnet.fukt'
56
21
server_interface = domain + '.Mandos'
57
22
client_interface = domain + '.Mandos.Client'
58
 
version = "1.5.3"
 
23
version = "1.0.14"
59
24
 
60
25
# Always run in monochrome mode
61
26
urwid.curses_display.curses.has_colors = lambda : False
65
30
urwid.curses_display.curses.A_UNDERLINE |= (
66
31
    urwid.curses_display.curses.A_BLINK)
67
32
 
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
33
class MandosClientPropertyCache(object):
85
34
    """This wraps a Mandos Client D-Bus proxy object, caches the
86
35
    properties and calls a hook function when any of them are
87
36
    changed.
88
37
    """
89
 
    def __init__(self, proxy_object=None, *args, **kwargs):
 
38
    def __init__(self, proxy_object=None, properties=None, *args,
 
39
                 **kwargs):
 
40
        # Type conversion mapping
 
41
        self.type_map = {
 
42
            dbus.ObjectPath: unicode,
 
43
            dbus.ByteArray: str,
 
44
            dbus.Signature: unicode,
 
45
            dbus.Byte: chr,
 
46
            dbus.Int16: int,
 
47
            dbus.UInt16: int,
 
48
            dbus.Int32: int,
 
49
            dbus.UInt32: int,
 
50
            dbus.Int64: int,
 
51
            dbus.UInt64: int,
 
52
            dbus.Dictionary: dict,
 
53
            dbus.Array: list,
 
54
            dbus.String: unicode,
 
55
            dbus.Boolean: bool,
 
56
            dbus.Double: float,
 
57
            dbus.Struct: tuple,
 
58
            }
90
59
        self.proxy = proxy_object # Mandos Client proxy object
91
60
        
92
 
        self.properties = dict()
93
 
        self.property_changed_match = (
94
 
            self.proxy.connect_to_signal("PropertyChanged",
95
 
                                         self.property_changed,
96
 
                                         client_interface,
97
 
                                         byte_arrays=True))
 
61
        if properties is None:
 
62
            self.properties = dict()
 
63
        else:
 
64
            self.properties = dict(self.convert_property(prop, val)
 
65
                                   for prop, val in
 
66
                                   properties.iteritems())
 
67
        self.proxy.connect_to_signal("PropertyChanged",
 
68
                                     self.property_changed,
 
69
                                     client_interface,
 
70
                                     byte_arrays=True)
98
71
        
99
 
        self.properties.update(
100
 
            self.proxy.GetAll(client_interface,
101
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
102
 
 
103
 
        #XXX This breaks good super behaviour
104
 
#        super(MandosClientPropertyCache, self).__init__(
105
 
#            *args, **kwargs)
 
72
        if properties is None:
 
73
            self.properties.update(
 
74
                self.convert_property(prop, val)
 
75
                for prop, val in
 
76
                self.proxy.GetAll(client_interface,
 
77
                                  dbus_interface =
 
78
                                  dbus.PROPERTIES_IFACE).iteritems())
 
79
        super(MandosClientPropertyCache, self).__init__(
 
80
            proxy_object=proxy_object,
 
81
            properties=properties, *args, **kwargs)
106
82
    
 
83
    def convert_property(self, property, value):
 
84
        """This converts the arguments from a D-Bus signal, which are
 
85
        D-Bus types, into normal Python types, using a conversion
 
86
        function from "self.type_map".
 
87
        """
 
88
        property_name = unicode(property) # Always a dbus.String
 
89
        if isinstance(value, dbus.UTF8String):
 
90
            # Should not happen, but prepare for it anyway
 
91
            value = dbus.String(str(value).decode("utf-8"))
 
92
        try:
 
93
            convfunc = self.type_map[type(value)]
 
94
        except KeyError:
 
95
            # Unknown type, return unmodified
 
96
            return property_name, value
 
97
        return property_name, convfunc(value)
107
98
    def property_changed(self, property=None, value=None):
108
99
        """This is called whenever we get a PropertyChanged signal
109
100
        It updates the changed property in the "properties" dict.
110
101
        """
 
102
        # Convert name and value
 
103
        property_name, cvalue = self.convert_property(property, value)
111
104
        # Update properties dict with new value
112
 
        self.properties[property] = value
113
 
    
114
 
    def delete(self, *args, **kwargs):
115
 
        self.property_changed_match.remove()
116
 
        super(MandosClientPropertyCache, self).__init__(
117
 
            *args, **kwargs)
 
105
        self.properties[property_name] = cvalue
118
106
 
119
107
 
120
108
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
122
110
    """
123
111
    
124
112
    def __init__(self, server_proxy_object=None, update_hook=None,
125
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
113
                 delete_hook=None, *args, **kwargs):
126
114
        # Called on update
127
115
        self.update_hook = update_hook
128
116
        # Called on delete
129
117
        self.delete_hook = delete_hook
130
118
        # Mandos Server proxy object
131
119
        self.server_proxy_object = server_proxy_object
132
 
        # Logger
133
 
        self.logger = logger
134
 
        
135
 
        self._update_timer_callback_tag = None
136
 
        self._update_timer_callback_lock = 0
137
120
        
138
121
        # The widget shown normally
139
122
        self._text_widget = urwid.Text("")
144
127
            *args, **kwargs)
145
128
        self.update()
146
129
        self.opened = False
147
 
        
148
 
        last_checked_ok = isoformat_to_datetime(self.properties
149
 
                                                ["LastCheckedOK"])
150
 
        
151
 
        if self.properties ["LastCheckerStatus"] != 0:
152
 
            self.using_timer(True)
153
 
        
154
 
        if self.need_approval:
155
 
            self.using_timer(True)
156
 
        
157
 
        self.match_objects = (
158
 
            self.proxy.connect_to_signal("CheckerCompleted",
159
 
                                         self.checker_completed,
160
 
                                         client_interface,
161
 
                                         byte_arrays=True),
162
 
            self.proxy.connect_to_signal("CheckerStarted",
163
 
                                         self.checker_started,
164
 
                                         client_interface,
165
 
                                         byte_arrays=True),
166
 
            self.proxy.connect_to_signal("GotSecret",
167
 
                                         self.got_secret,
168
 
                                         client_interface,
169
 
                                         byte_arrays=True),
170
 
            self.proxy.connect_to_signal("NeedApproval",
171
 
                                         self.need_approval,
172
 
                                         client_interface,
173
 
                                         byte_arrays=True),
174
 
            self.proxy.connect_to_signal("Rejected",
175
 
                                         self.rejected,
176
 
                                         client_interface,
177
 
                                         byte_arrays=True))
178
 
        #self.logger('Created client {0}'
179
 
        #            .format(self.properties["Name"]))
180
 
    
181
 
    def property_changed(self, property=None, value=None):
182
 
        super(self, MandosClientWidget).property_changed(property,
183
 
                                                         value)
184
 
        if property == "ApprovalPending":
185
 
            using_timer(bool(value))
186
 
        if property == "LastCheckerStatus":
187
 
            using_timer(value != 0)
188
 
            #self.logger('Checker for client {0} (command "{1}") was '
189
 
            #            ' successful'.format(self.properties["Name"],
190
 
            #                                 command))
191
 
    
192
 
    def using_timer(self, flag):
193
 
        """Call this method with True or False when timer should be
194
 
        activated or deactivated.
195
 
        """
196
 
        old = self._update_timer_callback_lock
197
 
        if flag:
198
 
            self._update_timer_callback_lock += 1
199
 
        else:
200
 
            self._update_timer_callback_lock -= 1
201
 
        if old == 0 and self._update_timer_callback_lock:
202
 
            # Will update the shown timer value every second
203
 
            self._update_timer_callback_tag = (gobject.timeout_add
204
 
                                               (1000,
205
 
                                                self.update_timer))
206
 
        elif old and self._update_timer_callback_lock == 0:
207
 
            gobject.source_remove(self._update_timer_callback_tag)
208
 
            self._update_timer_callback_tag = None
209
 
    
210
 
    def checker_completed(self, exitstatus, condition, command):
211
 
        if exitstatus == 0:
212
 
            self.update()
213
 
            return
214
 
        # Checker failed
215
 
        if os.WIFEXITED(condition):
216
 
            self.logger('Checker for client {0} (command "{1}")'
217
 
                        ' failed with exit code {2}'
218
 
                        .format(self.properties["Name"], command,
219
 
                                os.WEXITSTATUS(condition)))
220
 
        elif os.WIFSIGNALED(condition):
221
 
            self.logger('Checker for client {0} (command "{1}") was'
222
 
                        ' killed by signal {2}'
223
 
                        .format(self.properties["Name"], command,
224
 
                                os.WTERMSIG(condition)))
225
 
        elif os.WCOREDUMP(condition):
226
 
            self.logger('Checker for client {0} (command "{1}")'
227
 
                        ' dumped core'
228
 
                        .format(self.properties["Name"], command))
229
 
        else:
230
 
            self.logger('Checker for client {0} completed'
231
 
                        ' mysteriously'
232
 
                        .format(self.properties["Name"]))
233
 
        self.update()
234
 
    
235
 
    def checker_started(self, command):
236
 
        """Server signals that a checker started. This could be useful
237
 
           to log in the future. """
238
 
        #self.logger('Client {0} started checker "{1}"'
239
 
        #            .format(self.properties["Name"],
240
 
        #                    unicode(command)))
241
 
        pass
242
 
    
243
 
    def got_secret(self):
244
 
        self.logger('Client {0} received its secret'
245
 
                    .format(self.properties["Name"]))
246
 
    
247
 
    def need_approval(self, timeout, default):
248
 
        if not default:
249
 
            message = 'Client {0} needs approval within {1} seconds'
250
 
        else:
251
 
            message = 'Client {0} will get its secret in {1} seconds'
252
 
        self.logger(message.format(self.properties["Name"],
253
 
                                   timeout/1000))
254
 
        self.using_timer(True)
255
 
    
256
 
    def rejected(self, reason):
257
 
        self.logger('Client {0} was rejected; reason: {1}'
258
 
                    .format(self.properties["Name"], reason))
259
130
    
260
131
    def selectable(self):
261
132
        """Make this a "selectable" widget.
262
133
        This overrides the method from urwid.FlowWidget."""
263
134
        return True
264
135
    
265
 
    def rows(self, maxcolrow, focus=False):
 
136
    def rows(self, (maxcol,), focus=False):
266
137
        """How many rows this widget will occupy might depend on
267
138
        whether we have focus or not.
268
139
        This overrides the method from urwid.FlowWidget"""
269
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
140
        return self.current_widget(focus).rows((maxcol,), focus=focus)
270
141
    
271
142
    def current_widget(self, focus=False):
272
143
        if focus or self.opened:
276
147
    def update(self):
277
148
        "Called when what is visible on the screen should be updated."
278
149
        # How to add standout mode to a style
279
 
        with_standout = { "normal": "standout",
280
 
                          "bold": "bold-standout",
281
 
                          "underline-blink":
282
 
                              "underline-blink-standout",
283
 
                          "bold-underline-blink":
284
 
                              "bold-underline-blink-standout",
 
150
        with_standout = { u"normal": u"standout",
 
151
                          u"bold": u"bold-standout",
 
152
                          u"underline-blink":
 
153
                              u"underline-blink-standout",
 
154
                          u"bold-underline-blink":
 
155
                              u"bold-underline-blink-standout",
285
156
                          }
286
 
 
 
157
        
287
158
        # Rebuild focus and non-focus widgets using current properties
288
 
 
289
 
        # Base part of a client. Name!
290
 
        base = '{name}: '.format(name=self.properties["Name"])
291
 
        if not self.properties["Enabled"]:
292
 
            message = "DISABLED"
293
 
        elif self.properties["ApprovalPending"]:
294
 
            timeout = datetime.timedelta(milliseconds
295
 
                                         = self.properties
296
 
                                         ["ApprovalDelay"])
297
 
            last_approval_request = isoformat_to_datetime(
298
 
                self.properties["LastApprovalRequest"])
299
 
            if last_approval_request is not None:
300
 
                timer = timeout - (datetime.datetime.utcnow()
301
 
                                   - last_approval_request)
302
 
            else:
303
 
                timer = datetime.timedelta()
304
 
            if self.properties["ApprovedByDefault"]:
305
 
                message = "Approval in {0}. (d)eny?"
306
 
            else:
307
 
                message = "Denial in {0}. (a)pprove?"
308
 
            message = message.format(unicode(timer).rsplit(".", 1)[0])
309
 
        elif self.properties["LastCheckerStatus"] != 0:
310
 
            # When checker has failed, show timer until client expires
311
 
            expires = self.properties["Expires"]
312
 
            if expires == "":
313
 
                timer = datetime.timedelta(0)
314
 
            else:
315
 
                expires = (datetime.datetime.strptime
316
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
317
 
                timer = expires - datetime.datetime.utcnow()
318
 
            message = ('A checker has failed! Time until client'
319
 
                       ' gets disabled: {0}'
320
 
                       .format(unicode(timer).rsplit(".", 1)[0]))
321
 
        else:
322
 
            message = "enabled"
323
 
        self._text = "{0}{1}".format(base, message)
324
 
            
 
159
        self._text = (u'name="%(name)s", enabled=%(enabled)s'
 
160
                      % self.properties)
325
161
        if not urwid.supports_unicode():
326
162
            self._text = self._text.encode("ascii", "replace")
327
 
        textlist = [("normal", self._text)]
 
163
        textlist = [(u"normal", u"BLÄRGH: "), (u"bold", self._text)]
328
164
        self._text_widget.set_text(textlist)
329
165
        self._focus_text_widget.set_text([(with_standout[text[0]],
330
166
                                           text[1])
338
174
        if self.update_hook is not None:
339
175
            self.update_hook()
340
176
    
341
 
    def update_timer(self):
342
 
        """called by gobject. Will indefinitely loop until
343
 
        gobject.source_remove() on tag is called"""
344
 
        self.update()
345
 
        return True             # Keep calling this
346
 
    
347
 
    def delete(self, *args, **kwargs):
348
 
        if self._update_timer_callback_tag is not None:
349
 
            gobject.source_remove(self._update_timer_callback_tag)
350
 
            self._update_timer_callback_tag = None
351
 
        for match in self.match_objects:
352
 
            match.remove()
353
 
        self.match_objects = ()
 
177
    def delete(self):
354
178
        if self.delete_hook is not None:
355
179
            self.delete_hook(self)
356
 
        return super(MandosClientWidget, self).delete(*args, **kwargs)
357
180
    
358
 
    def render(self, maxcolrow, focus=False):
 
181
    def render(self, (maxcol,), focus=False):
359
182
        """Render differently if we have focus.
360
183
        This overrides the method from urwid.FlowWidget"""
361
 
        return self.current_widget(focus).render(maxcolrow,
 
184
        return self.current_widget(focus).render((maxcol,),
362
185
                                                 focus=focus)
363
186
    
364
 
    def keypress(self, maxcolrow, key):
 
187
    def keypress(self, (maxcol,), key):
365
188
        """Handle keys.
366
189
        This overrides the method from urwid.FlowWidget"""
367
 
        if key == "+":
368
 
            self.proxy.Enable(dbus_interface = client_interface,
369
 
                              ignore_reply=True)
370
 
        elif key == "-":
371
 
            self.proxy.Disable(dbus_interface = client_interface,
372
 
                               ignore_reply=True)
373
 
        elif key == "a":
374
 
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
375
 
                               dbus_interface = client_interface,
376
 
                               ignore_reply=True)
377
 
        elif key == "d":
378
 
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
379
 
                                  dbus_interface = client_interface,
380
 
                               ignore_reply=True)
381
 
        elif key == "R" or key == "_" or key == "ctrl k":
 
190
        if key == u"e" or key == u"+":
 
191
            self.proxy.Enable()
 
192
        elif key == u"d" or key == u"-":
 
193
            self.proxy.Disable()
 
194
        elif key == u"r" or key == u"_":
382
195
            self.server_proxy_object.RemoveClient(self.proxy
383
 
                                                  .object_path,
384
 
                                                  ignore_reply=True)
385
 
        elif key == "s":
386
 
            self.proxy.StartChecker(dbus_interface = client_interface,
387
 
                                    ignore_reply=True)
388
 
        elif key == "S":
389
 
            self.proxy.StopChecker(dbus_interface = client_interface,
390
 
                                   ignore_reply=True)
391
 
        elif key == "C":
392
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
393
 
                                 ignore_reply=True)
 
196
                                                  .object_path)
 
197
        elif key == u"s":
 
198
            self.proxy.StartChecker()
 
199
        elif key == u"c":
 
200
            self.proxy.StopChecker()
 
201
        elif key == u"S":
 
202
            self.proxy.CheckedOK()
394
203
        # xxx
395
 
#         elif key == "p" or key == "=":
 
204
#         elif key == u"p" or key == "=":
396
205
#             self.proxy.pause()
397
 
#         elif key == "u" or key == ":":
 
206
#         elif key == u"u" or key == ":":
398
207
#             self.proxy.unpause()
399
 
#         elif key == "RET":
 
208
#         elif key == u"RET":
400
209
#             self.open()
401
210
        else:
402
211
            return key
413
222
            self.update()
414
223
 
415
224
 
416
 
class ConstrainedListBox(urwid.ListBox):
417
 
    """Like a normal urwid.ListBox, but will consume all "up" or
418
 
    "down" key presses, thus not allowing any containing widgets to
419
 
    use them as an excuse to shift focus away from this widget.
420
 
    """
421
 
    def keypress(self, maxcolrow, key):
422
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
423
 
        if ret in ("up", "down"):
424
 
            return
425
 
        return ret
426
 
 
427
 
 
428
225
class UserInterface(object):
429
226
    """This is the entire user interface - the whole screen
430
227
    with boxes, lists of client widgets, etc.
431
228
    """
432
 
    def __init__(self, max_log_length=1000):
433
 
        DBusGMainLoop(set_as_default=True)
 
229
    def __init__(self):
 
230
        DBusGMainLoop(set_as_default=True )
434
231
        
435
232
        self.screen = urwid.curses_display.Screen()
436
233
        
437
234
        self.screen.register_palette((
438
 
                ("normal",
439
 
                 "default", "default", None),
440
 
                ("bold",
441
 
                 "default", "default", "bold"),
442
 
                ("underline-blink",
443
 
                 "default", "default", "underline"),
444
 
                ("standout",
445
 
                 "default", "default", "standout"),
446
 
                ("bold-underline-blink",
447
 
                 "default", "default", ("bold", "underline")),
448
 
                ("bold-standout",
449
 
                 "default", "default", ("bold", "standout")),
450
 
                ("underline-blink-standout",
451
 
                 "default", "default", ("underline", "standout")),
452
 
                ("bold-underline-blink-standout",
453
 
                 "default", "default", ("bold", "underline",
454
 
                                          "standout")),
 
235
                (u"normal",
 
236
                 u"default", u"default", None),
 
237
                (u"bold",
 
238
                 u"default", u"default", u"bold"),
 
239
                (u"underline-blink",
 
240
                 u"default", u"default", u"underline"),
 
241
                (u"standout",
 
242
                 u"default", u"default", u"standout"),
 
243
                (u"bold-underline-blink",
 
244
                 u"default", u"default", (u"bold", u"underline")),
 
245
                (u"bold-standout",
 
246
                 u"default", u"default", (u"bold", u"standout")),
 
247
                (u"underline-blink-standout",
 
248
                 u"default", u"default", (u"underline", u"standout")),
 
249
                (u"bold-underline-blink-standout",
 
250
                 u"default", u"default", (u"bold", u"underline",
 
251
                                          u"standout")),
455
252
                ))
456
253
        
457
 
        if urwid.supports_unicode():
458
 
            self.divider = "─" # \u2500
459
 
            #self.divider = "━" # \u2501
460
 
        else:
461
 
            #self.divider = "-" # \u002d
462
 
            self.divider = "_" # \u005f
463
 
        
464
254
        self.screen.start()
465
255
        
466
256
        self.size = self.screen.get_cols_rows()
467
257
        
468
258
        self.clients = urwid.SimpleListWalker([])
469
259
        self.clients_dict = {}
470
 
        
471
 
        # We will add Text widgets to this list
472
 
        self.log = []
473
 
        self.max_log_length = max_log_length
474
 
        
475
 
        # We keep a reference to the log widget so we can remove it
476
 
        # from the ListWalker without it getting destroyed
477
 
        self.logbox = ConstrainedListBox(self.log)
478
 
        
479
 
        # This keeps track of whether self.uilist currently has
480
 
        # self.logbox in it or not
481
 
        self.log_visible = True
482
 
        self.log_wrap = "any"
483
 
        
484
 
        self.rebuild()
485
 
        self.log_message_raw(("bold",
486
 
                              "Mandos Monitor version " + version))
487
 
        self.log_message_raw(("bold",
488
 
                              "q: Quit  ?: Help"))
 
260
        self.topwidget = urwid.LineBox(urwid.ListBox(self.clients))
 
261
        #self.topwidget = urwid.ListBox(clients)
489
262
        
490
263
        self.busname = domain + '.Mandos'
491
264
        self.main_loop = gobject.MainLoop()
492
 
    
493
 
    def client_not_found(self, fingerprint, address):
494
 
        self.log_message("Client with address {0} and fingerprint"
495
 
                         " {1} could not be found"
496
 
                         .format(address, fingerprint))
497
 
    
498
 
    def rebuild(self):
499
 
        """This rebuilds the User Interface.
500
 
        Call this when the widget layout needs to change"""
501
 
        self.uilist = []
502
 
        #self.uilist.append(urwid.ListBox(self.clients))
503
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
504
 
                                                          clients),
505
 
                                       #header=urwid.Divider(),
506
 
                                       header=None,
507
 
                                       footer=
508
 
                                       urwid.Divider(div_char=
509
 
                                                     self.divider)))
510
 
        if self.log_visible:
511
 
            self.uilist.append(self.logbox)
512
 
        self.topwidget = urwid.Pile(self.uilist)
513
 
    
514
 
    def log_message(self, message):
515
 
        timestamp = datetime.datetime.now().isoformat()
516
 
        self.log_message_raw(timestamp + ": " + message)
517
 
    
518
 
    def log_message_raw(self, markup):
519
 
        """Add a log message to the log buffer."""
520
 
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
521
 
        if (self.max_log_length
522
 
            and len(self.log) > self.max_log_length):
523
 
            del self.log[0:len(self.log)-self.max_log_length-1]
524
 
        self.logbox.set_focus(len(self.logbox.body.contents),
525
 
                              coming_from="above")
526
 
        self.refresh()
527
 
    
528
 
    def toggle_log_display(self):
529
 
        """Toggle visibility of the log buffer."""
530
 
        self.log_visible = not self.log_visible
531
 
        self.rebuild()
532
 
        #self.log_message("Log visibility changed to: "
533
 
        #                 + unicode(self.log_visible))
534
 
    
535
 
    def change_log_display(self):
536
 
        """Change type of log display.
537
 
        Currently, this toggles wrapping of text lines."""
538
 
        if self.log_wrap == "clip":
539
 
            self.log_wrap = "any"
540
 
        else:
541
 
            self.log_wrap = "clip"
542
 
        for textwidget in self.log:
543
 
            textwidget.set_wrap_mode(self.log_wrap)
544
 
        #self.log_message("Wrap mode: " + self.log_wrap)
 
265
        self.bus = dbus.SystemBus()
 
266
        mandos_dbus_objc = self.bus.get_object(
 
267
            self.busname, u"/", follow_name_owner_changes=True)
 
268
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
269
                                          dbus_interface
 
270
                                          = server_interface)
 
271
        try:
 
272
            mandos_clients = (self.mandos_serv
 
273
                              .GetAllClientsWithProperties())
 
274
        except dbus.exceptions.DBusException:
 
275
            mandos_clients = dbus.Dictionary()
 
276
        
 
277
        (self.mandos_serv
 
278
         .connect_to_signal("ClientRemoved",
 
279
                            self.find_and_remove_client,
 
280
                            dbus_interface=server_interface,
 
281
                            byte_arrays=True))
 
282
        (self.mandos_serv
 
283
         .connect_to_signal("ClientAdded",
 
284
                            self.add_new_client,
 
285
                            dbus_interface=server_interface,
 
286
                            byte_arrays=True))
 
287
        for path, client in (mandos_clients.iteritems()):
 
288
            client_proxy_object = self.bus.get_object(self.busname,
 
289
                                                      path)
 
290
            self.add_client(MandosClientWidget(server_proxy_object
 
291
                                               =self.mandos_serv,
 
292
                                               proxy_object
 
293
                                               =client_proxy_object,
 
294
                                               properties=client,
 
295
                                               update_hook
 
296
                                               =self.refresh,
 
297
                                               delete_hook
 
298
                                               =self.remove_client),
 
299
                            path=path)
545
300
    
546
301
    def find_and_remove_client(self, path, name):
547
 
        """Find a client by its object path and remove it.
 
302
        """Find an client from its object path and remove it.
548
303
        
549
304
        This is connected to the ClientRemoved signal from the
550
305
        Mandos server object."""
552
307
            client = self.clients_dict[path]
553
308
        except KeyError:
554
309
            # not found?
555
 
            self.log_message("Unknown client {0!r} ({1!r}) removed"
556
 
                             .format(name, path))
557
310
            return
558
 
        client.delete()
 
311
        self.remove_client(client, path)
559
312
    
560
 
    def add_new_client(self, path):
 
313
    def add_new_client(self, path, properties):
561
314
        client_proxy_object = self.bus.get_object(self.busname, path)
562
315
        self.add_client(MandosClientWidget(server_proxy_object
563
316
                                           =self.mandos_serv,
564
317
                                           proxy_object
565
318
                                           =client_proxy_object,
 
319
                                           properties=properties,
566
320
                                           update_hook
567
321
                                           =self.refresh,
568
322
                                           delete_hook
569
 
                                           =self.remove_client,
570
 
                                           logger
571
 
                                           =self.log_message),
 
323
                                           =self.remove_client),
572
324
                        path=path)
573
325
    
574
326
    def add_client(self, client, path=None):
576
328
        if path is None:
577
329
            path = client.proxy.object_path
578
330
        self.clients_dict[path] = client
579
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
331
        self.clients.sort(None, lambda c: c.properties[u"name"])
580
332
        self.refresh()
581
333
    
582
334
    def remove_client(self, client, path=None):
584
336
        if path is None:
585
337
            path = client.proxy.object_path
586
338
        del self.clients_dict[path]
587
 
        if not self.clients_dict:
588
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
589
 
            # is completely emptied, we need to recreate it.
590
 
            self.clients = urwid.SimpleListWalker([])
591
 
            self.rebuild()
592
339
        self.refresh()
593
340
    
594
341
    def refresh(self):
598
345
    
599
346
    def run(self):
600
347
        """Start the main loop and exit when it's done."""
601
 
        self.bus = dbus.SystemBus()
602
 
        mandos_dbus_objc = self.bus.get_object(
603
 
            self.busname, "/", follow_name_owner_changes=True)
604
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
605
 
                                          dbus_interface
606
 
                                          = server_interface)
607
 
        try:
608
 
            mandos_clients = (self.mandos_serv
609
 
                              .GetAllClientsWithProperties())
610
 
        except dbus.exceptions.DBusException:
611
 
            mandos_clients = dbus.Dictionary()
612
 
        
613
 
        (self.mandos_serv
614
 
         .connect_to_signal("ClientRemoved",
615
 
                            self.find_and_remove_client,
616
 
                            dbus_interface=server_interface,
617
 
                            byte_arrays=True))
618
 
        (self.mandos_serv
619
 
         .connect_to_signal("ClientAdded",
620
 
                            self.add_new_client,
621
 
                            dbus_interface=server_interface,
622
 
                            byte_arrays=True))
623
 
        (self.mandos_serv
624
 
         .connect_to_signal("ClientNotFound",
625
 
                            self.client_not_found,
626
 
                            dbus_interface=server_interface,
627
 
                            byte_arrays=True))
628
 
        for path, client in mandos_clients.iteritems():
629
 
            client_proxy_object = self.bus.get_object(self.busname,
630
 
                                                      path)
631
 
            self.add_client(MandosClientWidget(server_proxy_object
632
 
                                               =self.mandos_serv,
633
 
                                               proxy_object
634
 
                                               =client_proxy_object,
635
 
                                               properties=client,
636
 
                                               update_hook
637
 
                                               =self.refresh,
638
 
                                               delete_hook
639
 
                                               =self.remove_client,
640
 
                                               logger
641
 
                                               =self.log_message),
642
 
                            path=path)
643
 
 
644
348
        self.refresh()
645
349
        self._input_callback_tag = (gobject.io_add_watch
646
350
                                    (sys.stdin.fileno(),
656
360
    
657
361
    def process_input(self, source, condition):
658
362
        keys = self.screen.get_input()
659
 
        translations = { "ctrl n": "down",      # Emacs
660
 
                         "ctrl p": "up",        # Emacs
661
 
                         "ctrl v": "page down", # Emacs
662
 
                         "meta v": "page up",   # Emacs
663
 
                         " ": "page down",      # less
664
 
                         "f": "page down",      # less
665
 
                         "b": "page up",        # less
666
 
                         "j": "down",           # vi
667
 
                         "k": "up",             # vi
 
363
        translations = { u"j": u"down",
 
364
                         u"k": u"up",
668
365
                         }
669
366
        for key in keys:
670
367
            try:
672
369
            except KeyError:    # :-)
673
370
                pass
674
371
            
675
 
            if key == "q" or key == "Q":
 
372
            if key == u"q" or key == u"Q":
676
373
                self.stop()
677
374
                break
678
 
            elif key == "window resize":
 
375
            elif key == u"window resize":
679
376
                self.size = self.screen.get_cols_rows()
680
377
                self.refresh()
681
 
            elif key == "\f":  # Ctrl-L
682
 
                self.refresh()
683
 
            elif key == "l" or key == "D":
684
 
                self.toggle_log_display()
685
 
                self.refresh()
686
 
            elif key == "w" or key == "i":
687
 
                self.change_log_display()
688
 
                self.refresh()
689
 
            elif key == "?" or key == "f1" or key == "esc":
690
 
                if not self.log_visible:
691
 
                    self.log_visible = True
692
 
                    self.rebuild()
693
 
                self.log_message_raw(("bold",
694
 
                                      "  ".
695
 
                                      join(("q: Quit",
696
 
                                            "?: Help",
697
 
                                            "l: Log window toggle",
698
 
                                            "TAB: Switch window",
699
 
                                            "w: Wrap (log)"))))
700
 
                self.log_message_raw(("bold",
701
 
                                      "  "
702
 
                                      .join(("Clients:",
703
 
                                             "+: Enable",
704
 
                                             "-: Disable",
705
 
                                             "R: Remove",
706
 
                                             "s: Start new checker",
707
 
                                             "S: Stop checker",
708
 
                                             "C: Checker OK",
709
 
                                             "a: Approve",
710
 
                                             "d: Deny"))))
711
 
                self.refresh()
712
 
            elif key == "tab":
713
 
                if self.topwidget.get_focus() is self.logbox:
714
 
                    self.topwidget.set_focus(0)
715
 
                else:
716
 
                    self.topwidget.set_focus(self.logbox)
717
 
                self.refresh()
718
 
            #elif (key == "end" or key == "meta >" or key == "G"
719
 
            #      or key == ">"):
720
 
            #    pass            # xxx end-of-buffer
721
 
            #elif (key == "home" or key == "meta <" or key == "g"
722
 
            #      or key == "<"):
723
 
            #    pass            # xxx beginning-of-buffer
724
 
            #elif key == "ctrl e" or key == "$":
725
 
            #    pass            # xxx move-end-of-line
726
 
            #elif key == "ctrl a" or key == "^":
727
 
            #    pass            # xxx move-beginning-of-line
728
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
729
 
            #    pass            # xxx left
730
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
731
 
            #    pass            # xxx right
732
 
            #elif key == "a":
733
 
            #    pass            # scroll up log
734
 
            #elif key == "z":
735
 
            #    pass            # scroll down log
 
378
            elif key == " ":
 
379
                self.refresh()
736
380
            elif self.topwidget.selectable():
737
381
                self.topwidget.keypress(self.size, key)
738
382
                self.refresh()
741
385
ui = UserInterface()
742
386
try:
743
387
    ui.run()
744
 
except KeyboardInterrupt:
745
 
    ui.screen.stop()
746
 
except Exception, e:
747
 
    ui.log_message(unicode(e))
 
388
except:
748
389
    ui.screen.stop()
749
390
    raise