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* mandos: Use a class decorator instead of a metaclass to provide
          alternate D-Bus interface names on D-Bus object attributes.
  (alternate_dbus_interfaces): New class decorator.
  (AlternateDBusNamesMetaclass, ClientDBusTransitional,
   MandosDBusServiceTransitional): Removed; all users changed.
  (ClientDbus, MandosDBusService): Use new "alternate_dbus_interfaces"
                                   class decorator.

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mandos-monitor
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#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
#
 
3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
 
#
6
 
# Copyright © 2009-2019 Teddy Hogeborn
7
 
# Copyright © 2009-2019 Björn Påhlsson
8
 
#
9
 
# This file is part of Mandos.
10
 
#
11
 
# Mandos is free software: you can redistribute it and/or modify it
12
 
# under the terms of the GNU General Public License as published by
 
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
13
11
# the Free Software Foundation, either version 3 of the License, or
14
12
# (at your option) any later version.
15
13
#
16
 
#     Mandos is distributed in the hope that it will be useful, but
17
 
#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
14
#     This program is distributed in the hope that it will be useful,
 
15
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
18
16
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19
17
#     GNU General Public License for more details.
20
 
#
 
18
# 
21
19
# You should have received a copy of the GNU General Public License
22
 
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
23
 
#
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
 
22
# 
24
23
# Contact the authors at <mandos@recompile.se>.
25
 
#
 
24
# 
26
25
 
27
26
from __future__ import (division, absolute_import, print_function,
28
27
                        unicode_literals)
29
 
try:
30
 
    from future_builtins import *
31
 
except ImportError:
32
 
    pass
33
28
 
34
29
import sys
35
30
import os
 
31
import signal
36
32
 
37
33
import datetime
38
34
 
40
36
import urwid
41
37
 
42
38
from dbus.mainloop.glib import DBusGMainLoop
43
 
from gi.repository import GLib
 
39
import gobject
44
40
 
45
41
import dbus
46
42
 
 
43
import UserList
 
44
 
47
45
import locale
48
46
 
 
47
locale.setlocale(locale.LC_ALL, '')
 
48
 
49
49
import logging
50
 
 
51
 
if sys.version_info.major == 2:
52
 
    str = unicode
53
 
 
54
 
locale.setlocale(locale.LC_ALL, '')
55
 
 
56
50
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
57
51
 
58
52
# Some useful constants
59
53
domain = 'se.recompile'
60
54
server_interface = domain + '.Mandos'
61
55
client_interface = domain + '.Mandos.Client'
62
 
version = "1.8.3"
63
 
 
64
 
try:
65
 
    dbus.OBJECT_MANAGER_IFACE
66
 
except AttributeError:
67
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
68
 
 
 
56
version = "1.5.3"
 
57
 
 
58
# Always run in monochrome mode
 
59
urwid.curses_display.curses.has_colors = lambda : False
 
60
 
 
61
# Urwid doesn't support blinking, but we want it.  Since we have no
 
62
# use for underline on its own, we make underline also always blink.
 
63
urwid.curses_display.curses.A_UNDERLINE |= (
 
64
    urwid.curses_display.curses.A_BLINK)
69
65
 
70
66
def isoformat_to_datetime(iso):
71
67
    "Parse an ISO 8601 date string to a datetime.datetime()"
80
76
                             int(day),
81
77
                             int(hour),
82
78
                             int(minute),
83
 
                             int(second),            # Whole seconds
84
 
                             int(fraction*1000000))  # Microseconds
85
 
 
 
79
                             int(second),           # Whole seconds
 
80
                             int(fraction*1000000)) # Microseconds
86
81
 
87
82
class MandosClientPropertyCache(object):
88
83
    """This wraps a Mandos Client D-Bus proxy object, caches the
89
84
    properties and calls a hook function when any of them are
90
85
    changed.
91
86
    """
92
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
93
 
        self.proxy = proxy_object  # Mandos Client proxy object
94
 
        self.properties = dict() if properties is None else properties
 
87
    def __init__(self, proxy_object=None, *args, **kwargs):
 
88
        self.proxy = proxy_object # Mandos Client proxy object
 
89
        
 
90
        self.properties = dict()
95
91
        self.property_changed_match = (
96
 
            self.proxy.connect_to_signal("PropertiesChanged",
97
 
                                         self.properties_changed,
98
 
                                         dbus.PROPERTIES_IFACE,
 
92
            self.proxy.connect_to_signal("PropertyChanged",
 
93
                                         self.property_changed,
 
94
                                         client_interface,
99
95
                                         byte_arrays=True))
100
 
 
101
 
        if properties is None:
102
 
            self.properties.update(self.proxy.GetAll(
103
 
                client_interface,
104
 
                dbus_interface=dbus.PROPERTIES_IFACE))
105
 
 
106
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
107
 
 
108
 
    def properties_changed(self, interface, properties, invalidated):
109
 
        """This is called whenever we get a PropertiesChanged signal
110
 
        It updates the changed properties in the "properties" dict.
 
96
        
 
97
        self.properties.update(
 
98
            self.proxy.GetAll(client_interface,
 
99
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
100
 
 
101
        #XXX This breaks good super behaviour
 
102
#        super(MandosClientPropertyCache, self).__init__(
 
103
#            *args, **kwargs)
 
104
    
 
105
    def property_changed(self, property=None, value=None):
 
106
        """This is called whenever we get a PropertyChanged signal
 
107
        It updates the changed property in the "properties" dict.
111
108
        """
112
109
        # Update properties dict with new value
113
 
        if interface == client_interface:
114
 
            self.properties.update(properties)
115
 
 
116
 
    def delete(self):
 
110
        self.properties[property] = value
 
111
    
 
112
    def delete(self, *args, **kwargs):
117
113
        self.property_changed_match.remove()
 
114
        super(MandosClientPropertyCache, self).__init__(
 
115
            *args, **kwargs)
118
116
 
119
117
 
120
118
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
121
119
    """A Mandos Client which is visible on the screen.
122
120
    """
123
 
 
 
121
    
124
122
    def __init__(self, server_proxy_object=None, update_hook=None,
125
 
                 delete_hook=None, logger=None, **kwargs):
 
123
                 delete_hook=None, logger=None, *args, **kwargs):
126
124
        # Called on update
127
125
        self.update_hook = update_hook
128
126
        # Called on delete
131
129
        self.server_proxy_object = server_proxy_object
132
130
        # Logger
133
131
        self.logger = logger
134
 
 
 
132
        
135
133
        self._update_timer_callback_tag = None
136
 
 
 
134
        self._update_timer_callback_lock = 0
 
135
        
137
136
        # The widget shown normally
138
137
        self._text_widget = urwid.Text("")
139
138
        # The widget shown when we have focus
140
139
        self._focus_text_widget = urwid.Text("")
141
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
140
        super(MandosClientWidget, self).__init__(
 
141
            update_hook=update_hook, delete_hook=delete_hook,
 
142
            *args, **kwargs)
142
143
        self.update()
143
144
        self.opened = False
144
 
 
 
145
        
 
146
        last_checked_ok = isoformat_to_datetime(self.properties
 
147
                                                ["LastCheckedOK"])
 
148
        
 
149
        if self.properties ["LastCheckerStatus"] != 0:
 
150
            self.using_timer(True)
 
151
        
 
152
        if self.need_approval:
 
153
            self.using_timer(True)
 
154
        
145
155
        self.match_objects = (
146
156
            self.proxy.connect_to_signal("CheckerCompleted",
147
157
                                         self.checker_completed,
163
173
                                         self.rejected,
164
174
                                         client_interface,
165
175
                                         byte_arrays=True))
166
 
        self.logger('Created client {}'
167
 
                    .format(self.properties["Name"]), level=0)
168
 
 
 
176
        #self.logger('Created client {0}'
 
177
        #            .format(self.properties["Name"]))
 
178
    
 
179
    def property_changed(self, property=None, value=None):
 
180
        super(self, MandosClientWidget).property_changed(property,
 
181
                                                         value)
 
182
        if property == "ApprovalPending":
 
183
            using_timer(bool(value))
 
184
        if property == "LastCheckerStatus":
 
185
            using_timer(value != 0)
 
186
            #self.logger('Checker for client {0} (command "{1}") was '
 
187
            #            ' successful'.format(self.properties["Name"],
 
188
            #                                 command))
 
189
    
169
190
    def using_timer(self, flag):
170
191
        """Call this method with True or False when timer should be
171
192
        activated or deactivated.
172
193
        """
173
 
        if flag and self._update_timer_callback_tag is None:
 
194
        old = self._update_timer_callback_lock
 
195
        if flag:
 
196
            self._update_timer_callback_lock += 1
 
197
        else:
 
198
            self._update_timer_callback_lock -= 1
 
199
        if old == 0 and self._update_timer_callback_lock:
174
200
            # Will update the shown timer value every second
175
 
            self._update_timer_callback_tag = (GLib.timeout_add
 
201
            self._update_timer_callback_tag = (gobject.timeout_add
176
202
                                               (1000,
177
203
                                                self.update_timer))
178
 
        elif not (flag or self._update_timer_callback_tag is None):
179
 
            GLib.source_remove(self._update_timer_callback_tag)
 
204
        elif old and self._update_timer_callback_lock == 0:
 
205
            gobject.source_remove(self._update_timer_callback_tag)
180
206
            self._update_timer_callback_tag = None
181
 
 
 
207
    
182
208
    def checker_completed(self, exitstatus, condition, command):
183
209
        if exitstatus == 0:
184
 
            self.logger('Checker for client {} (command "{}")'
185
 
                        ' succeeded'.format(self.properties["Name"],
186
 
                                            command), level=0)
187
210
            self.update()
188
211
            return
189
212
        # Checker failed
190
213
        if os.WIFEXITED(condition):
191
 
            self.logger('Checker for client {} (command "{}") failed'
192
 
                        ' with exit code {}'
 
214
            self.logger('Checker for client {0} (command "{1}")'
 
215
                        ' failed with exit code {2}'
193
216
                        .format(self.properties["Name"], command,
194
217
                                os.WEXITSTATUS(condition)))
195
218
        elif os.WIFSIGNALED(condition):
196
 
            self.logger('Checker for client {} (command "{}") was'
197
 
                        ' killed by signal {}'
 
219
            self.logger('Checker for client {0} (command "{1}") was'
 
220
                        ' killed by signal {2}'
198
221
                        .format(self.properties["Name"], command,
199
222
                                os.WTERMSIG(condition)))
 
223
        elif os.WCOREDUMP(condition):
 
224
            self.logger('Checker for client {0} (command "{1}")'
 
225
                        ' dumped core'
 
226
                        .format(self.properties["Name"], command))
 
227
        else:
 
228
            self.logger('Checker for client {0} completed'
 
229
                        ' mysteriously'
 
230
                        .format(self.properties["Name"]))
200
231
        self.update()
201
 
 
 
232
    
202
233
    def checker_started(self, command):
203
 
        """Server signals that a checker started."""
204
 
        self.logger('Client {} started checker "{}"'
205
 
                    .format(self.properties["Name"],
206
 
                            command), level=0)
207
 
 
 
234
        """Server signals that a checker started. This could be useful
 
235
           to log in the future. """
 
236
        #self.logger('Client {0} started checker "{1}"'
 
237
        #            .format(self.properties["Name"],
 
238
        #                    unicode(command)))
 
239
        pass
 
240
    
208
241
    def got_secret(self):
209
 
        self.logger('Client {} received its secret'
 
242
        self.logger('Client {0} received its secret'
210
243
                    .format(self.properties["Name"]))
211
 
 
 
244
    
212
245
    def need_approval(self, timeout, default):
213
246
        if not default:
214
 
            message = 'Client {} needs approval within {} seconds'
 
247
            message = 'Client {0} needs approval within {1} seconds'
215
248
        else:
216
 
            message = 'Client {} will get its secret in {} seconds'
 
249
            message = 'Client {0} will get its secret in {1} seconds'
217
250
        self.logger(message.format(self.properties["Name"],
218
251
                                   timeout/1000))
219
 
 
 
252
        self.using_timer(True)
 
253
    
220
254
    def rejected(self, reason):
221
 
        self.logger('Client {} was rejected; reason: {}'
 
255
        self.logger('Client {0} was rejected; reason: {1}'
222
256
                    .format(self.properties["Name"], reason))
223
 
 
 
257
    
224
258
    def selectable(self):
225
259
        """Make this a "selectable" widget.
226
260
        This overrides the method from urwid.FlowWidget."""
227
261
        return True
228
 
 
 
262
    
229
263
    def rows(self, maxcolrow, focus=False):
230
264
        """How many rows this widget will occupy might depend on
231
265
        whether we have focus or not.
232
266
        This overrides the method from urwid.FlowWidget"""
233
267
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
234
 
 
 
268
    
235
269
    def current_widget(self, focus=False):
236
270
        if focus or self.opened:
237
271
            return self._focus_widget
238
272
        return self._widget
239
 
 
 
273
    
240
274
    def update(self):
241
275
        "Called when what is visible on the screen should be updated."
242
276
        # How to add standout mode to a style
243
 
        with_standout = {"normal": "standout",
244
 
                         "bold": "bold-standout",
245
 
                         "underline-blink":
246
 
                         "underline-blink-standout",
247
 
                         "bold-underline-blink":
248
 
                         "bold-underline-blink-standout",
249
 
                         }
 
277
        with_standout = { "normal": "standout",
 
278
                          "bold": "bold-standout",
 
279
                          "underline-blink":
 
280
                              "underline-blink-standout",
 
281
                          "bold-underline-blink":
 
282
                              "bold-underline-blink-standout",
 
283
                          }
250
284
 
251
285
        # Rebuild focus and non-focus widgets using current properties
252
286
 
254
288
        base = '{name}: '.format(name=self.properties["Name"])
255
289
        if not self.properties["Enabled"]:
256
290
            message = "DISABLED"
257
 
            self.using_timer(False)
258
291
        elif self.properties["ApprovalPending"]:
259
 
            timeout = datetime.timedelta(
260
 
                milliseconds=self.properties["ApprovalDelay"])
 
292
            timeout = datetime.timedelta(milliseconds
 
293
                                         = self.properties
 
294
                                         ["ApprovalDelay"])
261
295
            last_approval_request = isoformat_to_datetime(
262
296
                self.properties["LastApprovalRequest"])
263
297
            if last_approval_request is not None:
264
 
                timer = max(timeout - (datetime.datetime.utcnow()
265
 
                                       - last_approval_request),
266
 
                            datetime.timedelta())
 
298
                timer = timeout - (datetime.datetime.utcnow()
 
299
                                   - last_approval_request)
267
300
            else:
268
301
                timer = datetime.timedelta()
269
302
            if self.properties["ApprovedByDefault"]:
270
 
                message = "Approval in {}. (d)eny?"
 
303
                message = "Approval in {0}. (d)eny?"
271
304
            else:
272
 
                message = "Denial in {}. (a)pprove?"
273
 
            message = message.format(str(timer).rsplit(".", 1)[0])
274
 
            self.using_timer(True)
 
305
                message = "Denial in {0}. (a)pprove?"
 
306
            message = message.format(unicode(timer).rsplit(".", 1)[0])
275
307
        elif self.properties["LastCheckerStatus"] != 0:
276
308
            # When checker has failed, show timer until client expires
277
309
            expires = self.properties["Expires"]
280
312
            else:
281
313
                expires = (datetime.datetime.strptime
282
314
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
283
 
                timer = max(expires - datetime.datetime.utcnow(),
284
 
                            datetime.timedelta())
 
315
                timer = expires - datetime.datetime.utcnow()
285
316
            message = ('A checker has failed! Time until client'
286
 
                       ' gets disabled: {}'
287
 
                       .format(str(timer).rsplit(".", 1)[0]))
288
 
            self.using_timer(True)
 
317
                       ' gets disabled: {0}'
 
318
                       .format(unicode(timer).rsplit(".", 1)[0]))
289
319
        else:
290
320
            message = "enabled"
291
 
            self.using_timer(False)
292
 
        self._text = "{}{}".format(base, message)
293
 
 
 
321
        self._text = "{0}{1}".format(base, message)
 
322
            
294
323
        if not urwid.supports_unicode():
295
324
            self._text = self._text.encode("ascii", "replace")
296
325
        textlist = [("normal", self._text)]
306
335
        # Run update hook, if any
307
336
        if self.update_hook is not None:
308
337
            self.update_hook()
309
 
 
 
338
    
310
339
    def update_timer(self):
311
 
        """called by GLib. Will indefinitely loop until
312
 
        GLib.source_remove() on tag is called
313
 
        """
 
340
        """called by gobject. Will indefinitely loop until
 
341
        gobject.source_remove() on tag is called"""
314
342
        self.update()
315
343
        return True             # Keep calling this
316
 
 
317
 
    def delete(self, **kwargs):
 
344
    
 
345
    def delete(self, *args, **kwargs):
318
346
        if self._update_timer_callback_tag is not None:
319
 
            GLib.source_remove(self._update_timer_callback_tag)
 
347
            gobject.source_remove(self._update_timer_callback_tag)
320
348
            self._update_timer_callback_tag = None
321
349
        for match in self.match_objects:
322
350
            match.remove()
323
351
        self.match_objects = ()
324
352
        if self.delete_hook is not None:
325
353
            self.delete_hook(self)
326
 
        return super(MandosClientWidget, self).delete(**kwargs)
327
 
 
 
354
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
355
    
328
356
    def render(self, maxcolrow, focus=False):
329
357
        """Render differently if we have focus.
330
358
        This overrides the method from urwid.FlowWidget"""
331
359
        return self.current_widget(focus).render(maxcolrow,
332
360
                                                 focus=focus)
333
 
 
 
361
    
334
362
    def keypress(self, maxcolrow, key):
335
363
        """Handle keys.
336
364
        This overrides the method from urwid.FlowWidget"""
337
365
        if key == "+":
338
 
            self.proxy.Set(client_interface, "Enabled",
339
 
                           dbus.Boolean(True), ignore_reply=True,
340
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
366
            self.proxy.Enable(dbus_interface = client_interface,
 
367
                              ignore_reply=True)
341
368
        elif key == "-":
342
 
            self.proxy.Set(client_interface, "Enabled", False,
343
 
                           ignore_reply=True,
344
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
369
            self.proxy.Disable(dbus_interface = client_interface,
 
370
                               ignore_reply=True)
345
371
        elif key == "a":
346
372
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
347
 
                               dbus_interface=client_interface,
 
373
                               dbus_interface = client_interface,
348
374
                               ignore_reply=True)
349
375
        elif key == "d":
350
376
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
351
 
                               dbus_interface=client_interface,
 
377
                                  dbus_interface = client_interface,
352
378
                               ignore_reply=True)
353
379
        elif key == "R" or key == "_" or key == "ctrl k":
354
380
            self.server_proxy_object.RemoveClient(self.proxy
355
381
                                                  .object_path,
356
382
                                                  ignore_reply=True)
357
383
        elif key == "s":
358
 
            self.proxy.Set(client_interface, "CheckerRunning",
359
 
                           dbus.Boolean(True), ignore_reply=True,
360
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
384
            self.proxy.StartChecker(dbus_interface = client_interface,
 
385
                                    ignore_reply=True)
361
386
        elif key == "S":
362
 
            self.proxy.Set(client_interface, "CheckerRunning",
363
 
                           dbus.Boolean(False), ignore_reply=True,
364
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
387
            self.proxy.StopChecker(dbus_interface = client_interface,
 
388
                                   ignore_reply=True)
365
389
        elif key == "C":
366
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
390
            self.proxy.CheckedOK(dbus_interface = client_interface,
367
391
                                 ignore_reply=True)
368
392
        # xxx
369
393
#         elif key == "p" or key == "=":
374
398
#             self.open()
375
399
        else:
376
400
            return key
377
 
 
378
 
    def properties_changed(self, interface, properties, invalidated):
379
 
        """Call self.update() if any properties changed.
 
401
    
 
402
    def property_changed(self, property=None, value=None,
 
403
                         *args, **kwargs):
 
404
        """Call self.update() if old value is not new value.
380
405
        This overrides the method from MandosClientPropertyCache"""
381
 
        old_values = {key: self.properties.get(key)
382
 
                      for key in properties.keys()}
383
 
        super(MandosClientWidget, self).properties_changed(
384
 
            interface, properties, invalidated)
385
 
        if any(old_values[key] != self.properties.get(key)
386
 
               for key in old_values):
 
406
        property_name = unicode(property)
 
407
        old_value = self.properties.get(property_name)
 
408
        super(MandosClientWidget, self).property_changed(
 
409
            property=property, value=value, *args, **kwargs)
 
410
        if self.properties.get(property_name) != old_value:
387
411
            self.update()
388
412
 
389
413
 
392
416
    "down" key presses, thus not allowing any containing widgets to
393
417
    use them as an excuse to shift focus away from this widget.
394
418
    """
395
 
    def keypress(self, *args, **kwargs):
396
 
        ret = (super(ConstrainedListBox, self)
397
 
               .keypress(*args, **kwargs))
 
419
    def keypress(self, maxcolrow, key):
 
420
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
398
421
        if ret in ("up", "down"):
399
422
            return
400
423
        return ret
404
427
    """This is the entire user interface - the whole screen
405
428
    with boxes, lists of client widgets, etc.
406
429
    """
407
 
    def __init__(self, max_log_length=1000, log_level=1):
 
430
    def __init__(self, max_log_length=1000):
408
431
        DBusGMainLoop(set_as_default=True)
409
 
 
 
432
        
410
433
        self.screen = urwid.curses_display.Screen()
411
 
 
 
434
        
412
435
        self.screen.register_palette((
413
436
                ("normal",
414
437
                 "default", "default", None),
415
438
                ("bold",
416
 
                 "bold", "default", "bold"),
 
439
                 "default", "default", "bold"),
417
440
                ("underline-blink",
418
 
                 "underline,blink", "default", "underline,blink"),
 
441
                 "default", "default", "underline"),
419
442
                ("standout",
420
 
                 "standout", "default", "standout"),
 
443
                 "default", "default", "standout"),
421
444
                ("bold-underline-blink",
422
 
                 "bold,underline,blink", "default",
423
 
                 "bold,underline,blink"),
 
445
                 "default", "default", ("bold", "underline")),
424
446
                ("bold-standout",
425
 
                 "bold,standout", "default", "bold,standout"),
 
447
                 "default", "default", ("bold", "standout")),
426
448
                ("underline-blink-standout",
427
 
                 "underline,blink,standout", "default",
428
 
                 "underline,blink,standout"),
 
449
                 "default", "default", ("underline", "standout")),
429
450
                ("bold-underline-blink-standout",
430
 
                 "bold,underline,blink,standout", "default",
431
 
                 "bold,underline,blink,standout"),
 
451
                 "default", "default", ("bold", "underline",
 
452
                                          "standout")),
432
453
                ))
433
 
 
 
454
        
434
455
        if urwid.supports_unicode():
435
 
            self.divider = "─"  # \u2500
 
456
            self.divider = "─" # \u2500
 
457
            #self.divider = "━" # \u2501
436
458
        else:
437
 
            self.divider = "_"  # \u005f
438
 
 
 
459
            #self.divider = "-" # \u002d
 
460
            self.divider = "_" # \u005f
 
461
        
439
462
        self.screen.start()
440
 
 
 
463
        
441
464
        self.size = self.screen.get_cols_rows()
442
 
 
 
465
        
443
466
        self.clients = urwid.SimpleListWalker([])
444
467
        self.clients_dict = {}
445
 
 
 
468
        
446
469
        # We will add Text widgets to this list
447
 
        self.log = urwid.SimpleListWalker([])
 
470
        self.log = []
448
471
        self.max_log_length = max_log_length
449
 
 
450
 
        self.log_level = log_level
451
 
 
 
472
        
452
473
        # We keep a reference to the log widget so we can remove it
453
474
        # from the ListWalker without it getting destroyed
454
475
        self.logbox = ConstrainedListBox(self.log)
455
 
 
 
476
        
456
477
        # This keeps track of whether self.uilist currently has
457
478
        # self.logbox in it or not
458
479
        self.log_visible = True
459
480
        self.log_wrap = "any"
460
 
 
 
481
        
461
482
        self.rebuild()
462
483
        self.log_message_raw(("bold",
463
484
                              "Mandos Monitor version " + version))
464
485
        self.log_message_raw(("bold",
465
486
                              "q: Quit  ?: Help"))
466
 
 
 
487
        
467
488
        self.busname = domain + '.Mandos'
468
 
        self.main_loop = GLib.MainLoop()
469
 
 
 
489
        self.main_loop = gobject.MainLoop()
 
490
    
470
491
    def client_not_found(self, fingerprint, address):
471
 
        self.log_message("Client with address {} and fingerprint {}"
472
 
                         " could not be found"
 
492
        self.log_message("Client with address {0} and fingerprint"
 
493
                         " {1} could not be found"
473
494
                         .format(address, fingerprint))
474
 
 
 
495
    
475
496
    def rebuild(self):
476
497
        """This rebuilds the User Interface.
477
498
        Call this when the widget layout needs to change"""
478
499
        self.uilist = []
479
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
500
        #self.uilist.append(urwid.ListBox(self.clients))
480
501
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
481
502
                                                          clients),
482
 
                                       # header=urwid.Divider(),
 
503
                                       #header=urwid.Divider(),
483
504
                                       header=None,
484
 
                                       footer=urwid.Divider(
485
 
                                           div_char=self.divider)))
 
505
                                       footer=
 
506
                                       urwid.Divider(div_char=
 
507
                                                     self.divider)))
486
508
        if self.log_visible:
487
509
            self.uilist.append(self.logbox)
488
510
        self.topwidget = urwid.Pile(self.uilist)
489
 
 
490
 
    def log_message(self, message, level=1):
491
 
        """Log message formatted with timestamp"""
492
 
        if level < self.log_level:
493
 
            return
 
511
    
 
512
    def log_message(self, message):
494
513
        timestamp = datetime.datetime.now().isoformat()
495
 
        self.log_message_raw("{}: {}".format(timestamp, message),
496
 
                             level=level)
497
 
 
498
 
    def log_message_raw(self, markup, level=1):
 
514
        self.log_message_raw(timestamp + ": " + message)
 
515
    
 
516
    def log_message_raw(self, markup):
499
517
        """Add a log message to the log buffer."""
500
 
        if level < self.log_level:
501
 
            return
502
518
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
503
 
        if self.max_log_length:
504
 
            if len(self.log) > self.max_log_length:
505
 
                del self.log[0:len(self.log)-self.max_log_length-1]
506
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
519
        if (self.max_log_length
 
520
            and len(self.log) > self.max_log_length):
 
521
            del self.log[0:len(self.log)-self.max_log_length-1]
 
522
        self.logbox.set_focus(len(self.logbox.body.contents),
507
523
                              coming_from="above")
508
524
        self.refresh()
509
 
 
 
525
    
510
526
    def toggle_log_display(self):
511
527
        """Toggle visibility of the log buffer."""
512
528
        self.log_visible = not self.log_visible
513
529
        self.rebuild()
514
 
        self.log_message("Log visibility changed to: {}"
515
 
                         .format(self.log_visible), level=0)
516
 
 
 
530
        #self.log_message("Log visibility changed to: "
 
531
        #                 + unicode(self.log_visible))
 
532
    
517
533
    def change_log_display(self):
518
534
        """Change type of log display.
519
535
        Currently, this toggles wrapping of text lines."""
523
539
            self.log_wrap = "clip"
524
540
        for textwidget in self.log:
525
541
            textwidget.set_wrap_mode(self.log_wrap)
526
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
527
 
                         level=0)
528
 
 
529
 
    def find_and_remove_client(self, path, interfaces):
 
542
        #self.log_message("Wrap mode: " + self.log_wrap)
 
543
    
 
544
    def find_and_remove_client(self, path, name):
530
545
        """Find a client by its object path and remove it.
531
 
 
532
 
        This is connected to the InterfacesRemoved signal from the
 
546
        
 
547
        This is connected to the ClientRemoved signal from the
533
548
        Mandos server object."""
534
 
        if client_interface not in interfaces:
535
 
            # Not a Mandos client object; ignore
536
 
            return
537
549
        try:
538
550
            client = self.clients_dict[path]
539
551
        except KeyError:
540
552
            # not found?
541
 
            self.log_message("Unknown client {!r} removed"
542
 
                             .format(path))
 
553
            self.log_message("Unknown client {0!r} ({1!r}) removed"
 
554
                             .format(name, path))
543
555
            return
544
556
        client.delete()
545
 
 
546
 
    def add_new_client(self, path, ifs_and_props):
547
 
        """Find a client by its object path and remove it.
548
 
 
549
 
        This is connected to the InterfacesAdded signal from the
550
 
        Mandos server object.
551
 
        """
552
 
        if client_interface not in ifs_and_props:
553
 
            # Not a Mandos client object; ignore
554
 
            return
 
557
    
 
558
    def add_new_client(self, path):
555
559
        client_proxy_object = self.bus.get_object(self.busname, path)
556
 
        self.add_client(MandosClientWidget(
557
 
            server_proxy_object=self.mandos_serv,
558
 
            proxy_object=client_proxy_object,
559
 
            update_hook=self.refresh,
560
 
            delete_hook=self.remove_client,
561
 
            logger=self.log_message,
562
 
            properties=dict(ifs_and_props[client_interface])),
 
560
        self.add_client(MandosClientWidget(server_proxy_object
 
561
                                           =self.mandos_serv,
 
562
                                           proxy_object
 
563
                                           =client_proxy_object,
 
564
                                           update_hook
 
565
                                           =self.refresh,
 
566
                                           delete_hook
 
567
                                           =self.remove_client,
 
568
                                           logger
 
569
                                           =self.log_message),
563
570
                        path=path)
564
 
 
 
571
    
565
572
    def add_client(self, client, path=None):
566
573
        self.clients.append(client)
567
574
        if path is None:
568
575
            path = client.proxy.object_path
569
576
        self.clients_dict[path] = client
570
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
577
        self.clients.sort(None, lambda c: c.properties["Name"])
571
578
        self.refresh()
572
 
 
 
579
    
573
580
    def remove_client(self, client, path=None):
574
581
        self.clients.remove(client)
575
582
        if path is None:
576
583
            path = client.proxy.object_path
577
584
        del self.clients_dict[path]
 
585
        if not self.clients_dict:
 
586
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
587
            # is completely emptied, we need to recreate it.
 
588
            self.clients = urwid.SimpleListWalker([])
 
589
            self.rebuild()
578
590
        self.refresh()
579
 
 
 
591
    
580
592
    def refresh(self):
581
593
        """Redraw the screen"""
582
594
        canvas = self.topwidget.render(self.size, focus=True)
583
595
        self.screen.draw_screen(self.size, canvas)
584
 
 
 
596
    
585
597
    def run(self):
586
598
        """Start the main loop and exit when it's done."""
587
599
        self.bus = dbus.SystemBus()
588
600
        mandos_dbus_objc = self.bus.get_object(
589
601
            self.busname, "/", follow_name_owner_changes=True)
590
 
        self.mandos_serv = dbus.Interface(
591
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
602
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
603
                                          dbus_interface
 
604
                                          = server_interface)
592
605
        try:
593
606
            mandos_clients = (self.mandos_serv
594
607
                              .GetAllClientsWithProperties())
595
 
            if not mandos_clients:
596
 
                self.log_message_raw(("bold",
597
 
                                      "Note: Server has no clients."))
598
608
        except dbus.exceptions.DBusException:
599
 
            self.log_message_raw(("bold",
600
 
                                  "Note: No Mandos server running."))
601
609
            mandos_clients = dbus.Dictionary()
602
 
 
 
610
        
603
611
        (self.mandos_serv
604
 
         .connect_to_signal("InterfacesRemoved",
 
612
         .connect_to_signal("ClientRemoved",
605
613
                            self.find_and_remove_client,
606
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
614
                            dbus_interface=server_interface,
607
615
                            byte_arrays=True))
608
616
        (self.mandos_serv
609
 
         .connect_to_signal("InterfacesAdded",
 
617
         .connect_to_signal("ClientAdded",
610
618
                            self.add_new_client,
611
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
619
                            dbus_interface=server_interface,
612
620
                            byte_arrays=True))
613
621
        (self.mandos_serv
614
622
         .connect_to_signal("ClientNotFound",
615
623
                            self.client_not_found,
616
624
                            dbus_interface=server_interface,
617
625
                            byte_arrays=True))
618
 
        for path, client in mandos_clients.items():
 
626
        for path, client in mandos_clients.iteritems():
619
627
            client_proxy_object = self.bus.get_object(self.busname,
620
628
                                                      path)
621
 
            self.add_client(MandosClientWidget(
622
 
                server_proxy_object=self.mandos_serv,
623
 
                proxy_object=client_proxy_object,
624
 
                properties=client,
625
 
                update_hook=self.refresh,
626
 
                delete_hook=self.remove_client,
627
 
                logger=self.log_message),
 
629
            self.add_client(MandosClientWidget(server_proxy_object
 
630
                                               =self.mandos_serv,
 
631
                                               proxy_object
 
632
                                               =client_proxy_object,
 
633
                                               properties=client,
 
634
                                               update_hook
 
635
                                               =self.refresh,
 
636
                                               delete_hook
 
637
                                               =self.remove_client,
 
638
                                               logger
 
639
                                               =self.log_message),
628
640
                            path=path)
629
641
 
630
642
        self.refresh()
631
 
        self._input_callback_tag = (GLib.io_add_watch
 
643
        self._input_callback_tag = (gobject.io_add_watch
632
644
                                    (sys.stdin.fileno(),
633
 
                                     GLib.IO_IN,
 
645
                                     gobject.IO_IN,
634
646
                                     self.process_input))
635
647
        self.main_loop.run()
636
648
        # Main loop has finished, we should close everything now
637
 
        GLib.source_remove(self._input_callback_tag)
 
649
        gobject.source_remove(self._input_callback_tag)
638
650
        self.screen.stop()
639
 
 
 
651
    
640
652
    def stop(self):
641
653
        self.main_loop.quit()
642
 
 
 
654
    
643
655
    def process_input(self, source, condition):
644
656
        keys = self.screen.get_input()
645
 
        translations = {"ctrl n": "down",       # Emacs
646
 
                        "ctrl p": "up",         # Emacs
647
 
                        "ctrl v": "page down",  # Emacs
648
 
                        "meta v": "page up",    # Emacs
649
 
                        " ": "page down",       # less
650
 
                        "f": "page down",       # less
651
 
                        "b": "page up",         # less
652
 
                        "j": "down",            # vi
653
 
                        "k": "up",              # vi
654
 
                        }
 
657
        translations = { "ctrl n": "down",      # Emacs
 
658
                         "ctrl p": "up",        # Emacs
 
659
                         "ctrl v": "page down", # Emacs
 
660
                         "meta v": "page up",   # Emacs
 
661
                         " ": "page down",      # less
 
662
                         "f": "page down",      # less
 
663
                         "b": "page up",        # less
 
664
                         "j": "down",           # vi
 
665
                         "k": "up",             # vi
 
666
                         }
655
667
        for key in keys:
656
668
            try:
657
669
                key = translations[key]
658
670
            except KeyError:    # :-)
659
671
                pass
660
 
 
 
672
            
661
673
            if key == "q" or key == "Q":
662
674
                self.stop()
663
675
                break
664
676
            elif key == "window resize":
665
677
                self.size = self.screen.get_cols_rows()
666
678
                self.refresh()
667
 
            elif key == "ctrl l":
668
 
                self.screen.clear()
 
679
            elif key == "\f":  # Ctrl-L
669
680
                self.refresh()
670
681
            elif key == "l" or key == "D":
671
682
                self.toggle_log_display()
683
694
                                            "?: Help",
684
695
                                            "l: Log window toggle",
685
696
                                            "TAB: Switch window",
686
 
                                            "w: Wrap (log lines)",
687
 
                                            "v: Toggle verbose log",
688
 
                                            ))))
 
697
                                            "w: Wrap (log)"))))
689
698
                self.log_message_raw(("bold",
690
699
                                      "  "
691
700
                                      .join(("Clients:",
704
713
                else:
705
714
                    self.topwidget.set_focus(self.logbox)
706
715
                self.refresh()
707
 
            elif key == "v":
708
 
                if self.log_level == 0:
709
 
                    self.log_level = 1
710
 
                    self.log_message("Verbose mode: Off")
711
 
                else:
712
 
                    self.log_level = 0
713
 
                    self.log_message("Verbose mode: On")
714
 
            # elif (key == "end" or key == "meta >" or key == "G"
715
 
            #       or key == ">"):
716
 
            #     pass            # xxx end-of-buffer
717
 
            # elif (key == "home" or key == "meta <" or key == "g"
718
 
            #       or key == "<"):
719
 
            #     pass            # xxx beginning-of-buffer
720
 
            # elif key == "ctrl e" or key == "$":
721
 
            #     pass            # xxx move-end-of-line
722
 
            # elif key == "ctrl a" or key == "^":
723
 
            #     pass            # xxx move-beginning-of-line
724
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
725
 
            #     pass            # xxx left
726
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
727
 
            #     pass            # xxx right
728
 
            # elif key == "a":
729
 
            #     pass            # scroll up log
730
 
            # elif key == "z":
731
 
            #     pass            # scroll down log
 
716
            #elif (key == "end" or key == "meta >" or key == "G"
 
717
            #      or key == ">"):
 
718
            #    pass            # xxx end-of-buffer
 
719
            #elif (key == "home" or key == "meta <" or key == "g"
 
720
            #      or key == "<"):
 
721
            #    pass            # xxx beginning-of-buffer
 
722
            #elif key == "ctrl e" or key == "$":
 
723
            #    pass            # xxx move-end-of-line
 
724
            #elif key == "ctrl a" or key == "^":
 
725
            #    pass            # xxx move-beginning-of-line
 
726
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
727
            #    pass            # xxx left
 
728
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
729
            #    pass            # xxx right
 
730
            #elif key == "a":
 
731
            #    pass            # scroll up log
 
732
            #elif key == "z":
 
733
            #    pass            # scroll down log
732
734
            elif self.topwidget.selectable():
733
735
                self.topwidget.keypress(self.size, key)
734
736
                self.refresh()
735
737
        return True
736
738
 
737
 
 
738
739
ui = UserInterface()
739
740
try:
740
741
    ui.run()
741
742
except KeyboardInterrupt:
742
743
    ui.screen.stop()
743
 
except Exception as e:
744
 
    ui.log_message(str(e))
 
744
except Exception, e:
 
745
    ui.log_message(unicode(e))
745
746
    ui.screen.stop()
746
747
    raise