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  • Committer: Teddy Hogeborn
  • Date: 2024-11-24 00:44:25 UTC
  • Revision ID: teddy@recompile.se-20241124004425-6k3y0ir1ksyjq3c4
mandos-keygen: Show warning about old OpenSSH versions

When generating a config file snippet on the Mandos client system
using mandos-keygen, and the default ssh-keyscan checker is used, and
if the OpenSSH version is 9.8 or later, the "checker" command
generated for the config file on the Mandos server will include the
"-q" option for ssh-keyscan.  This option did not exist on ssh-keyscan
from OpenSSH older than version 9.8.  Therefore, if the Mandos
*server* is running an older version of OpenSSH, where ssh-keyscan
does not support the "-q" option, this option must be removed from the
generated "checker" setting.  Since we cannot know if this is the case
when running mandos-keygen on the Mandos client system, we print this
information as a comment above the generated "checker" setting.

* mandos-keygen: Show warning if the new "-q" options was used with
  ssh-keyscan in the generated "checker" setting.

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mandos-monitor
1
 
#!/usr/bin/python
 
1
#!/usr/bin/python3 -bbI
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
# 
 
3
#
4
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
 
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
11
13
# the Free Software Foundation, either version 3 of the License, or
12
14
# (at your option) any later version.
13
15
#
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
#     Mandos is distributed in the hope that it will be useful, but
 
17
#     WITHOUT ANY WARRANTY; without even the implied warranty of
16
18
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
19
#     GNU General Public License for more details.
18
 
# 
 
20
#
19
21
# 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
 
# 
 
22
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
23
#
23
24
# Contact the authors at <mandos@recompile.se>.
24
 
# 
25
 
 
 
25
#
26
26
from __future__ import (division, absolute_import, print_function,
27
27
                        unicode_literals)
 
28
 
28
29
try:
29
30
    from future_builtins import *
30
31
except ImportError:
31
32
    pass
32
33
 
33
34
import sys
 
35
import logging
34
36
import os
35
 
 
 
37
import warnings
36
38
import datetime
 
39
import locale
37
40
 
38
41
import urwid.curses_display
39
42
import urwid
43
46
 
44
47
import dbus
45
48
 
46
 
import locale
47
 
 
48
49
if sys.version_info.major == 2:
 
50
    __metaclass__ = type
49
51
    str = unicode
50
 
 
51
 
locale.setlocale(locale.LC_ALL, '')
52
 
 
53
 
import logging
54
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
52
    input = raw_input
 
53
 
 
54
# Show warnings by default
 
55
if not sys.warnoptions:
 
56
    warnings.simplefilter("default")
 
57
 
 
58
log = logging.getLogger(os.path.basename(sys.argv[0]))
 
59
logging.basicConfig(level="NOTSET", # Show all messages
 
60
                    format="%(message)s") # Show basic log messages
 
61
 
 
62
logging.captureWarnings(True)   # Show warnings via the logging system
 
63
 
 
64
locale.setlocale(locale.LC_ALL, "")
 
65
 
 
66
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
67
logging.getLogger("urwid").setLevel(logging.INFO)
55
68
 
56
69
# Some useful constants
57
 
domain = 'se.recompile'
58
 
server_interface = domain + '.Mandos'
59
 
client_interface = domain + '.Mandos.Client'
60
 
version = "1.7.7"
 
70
domain = "se.recompile"
 
71
server_interface = domain + ".Mandos"
 
72
client_interface = domain + ".Mandos.Client"
 
73
version = "1.8.17"
61
74
 
62
75
try:
63
76
    dbus.OBJECT_MANAGER_IFACE
64
77
except AttributeError:
65
78
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
66
79
 
 
80
 
67
81
def isoformat_to_datetime(iso):
68
82
    "Parse an ISO 8601 date string to a datetime.datetime()"
69
83
    if not iso:
77
91
                             int(day),
78
92
                             int(hour),
79
93
                             int(minute),
80
 
                             int(second),           # Whole seconds
81
 
                             int(fraction*1000000)) # Microseconds
82
 
 
83
 
class MandosClientPropertyCache(object):
 
94
                             int(second),            # Whole seconds
 
95
                             int(fraction*1000000))  # Microseconds
 
96
 
 
97
 
 
98
class MandosClientPropertyCache:
84
99
    """This wraps a Mandos Client D-Bus proxy object, caches the
85
100
    properties and calls a hook function when any of them are
86
101
    changed.
87
102
    """
88
103
    def __init__(self, proxy_object=None, properties=None, **kwargs):
89
 
        self.proxy = proxy_object # Mandos Client proxy object
 
104
        self.proxy = proxy_object  # Mandos Client proxy object
90
105
        self.properties = dict() if properties is None else properties
91
106
        self.property_changed_match = (
92
107
            self.proxy.connect_to_signal("PropertiesChanged",
93
108
                                         self.properties_changed,
94
109
                                         dbus.PROPERTIES_IFACE,
95
110
                                         byte_arrays=True))
96
 
        
 
111
 
97
112
        if properties is None:
98
 
            self.properties.update(
99
 
                self.proxy.GetAll(client_interface,
100
 
                                  dbus_interface
101
 
                                  = dbus.PROPERTIES_IFACE))
102
 
        
 
113
            self.properties.update(self.proxy.GetAll(
 
114
                client_interface,
 
115
                dbus_interface=dbus.PROPERTIES_IFACE))
 
116
 
103
117
        super(MandosClientPropertyCache, self).__init__(**kwargs)
104
 
    
 
118
 
105
119
    def properties_changed(self, interface, properties, invalidated):
106
120
        """This is called whenever we get a PropertiesChanged signal
107
121
        It updates the changed properties in the "properties" dict.
109
123
        # Update properties dict with new value
110
124
        if interface == client_interface:
111
125
            self.properties.update(properties)
112
 
    
 
126
 
113
127
    def delete(self):
114
128
        self.property_changed_match.remove()
115
129
 
116
130
 
117
 
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
131
class MandosClientWidget(MandosClientPropertyCache, urwid.Widget):
118
132
    """A Mandos Client which is visible on the screen.
119
133
    """
120
 
    
 
134
 
 
135
    _sizing = frozenset(["flow"])
 
136
 
121
137
    def __init__(self, server_proxy_object=None, update_hook=None,
122
 
                 delete_hook=None, logger=None, **kwargs):
 
138
                 delete_hook=None, **kwargs):
123
139
        # Called on update
124
140
        self.update_hook = update_hook
125
141
        # Called on delete
126
142
        self.delete_hook = delete_hook
127
143
        # Mandos Server proxy object
128
144
        self.server_proxy_object = server_proxy_object
129
 
        # Logger
130
 
        self.logger = logger
131
 
        
 
145
 
132
146
        self._update_timer_callback_tag = None
133
 
        
 
147
 
134
148
        # The widget shown normally
135
149
        self._text_widget = urwid.Text("")
136
150
        # The widget shown when we have focus
138
152
        super(MandosClientWidget, self).__init__(**kwargs)
139
153
        self.update()
140
154
        self.opened = False
141
 
        
 
155
 
142
156
        self.match_objects = (
143
157
            self.proxy.connect_to_signal("CheckerCompleted",
144
158
                                         self.checker_completed,
160
174
                                         self.rejected,
161
175
                                         client_interface,
162
176
                                         byte_arrays=True))
163
 
        self.logger('Created client {}'
164
 
                    .format(self.properties["Name"]), level=0)
165
 
    
 
177
        log.debug("Created client %s", self.properties["Name"])
 
178
 
166
179
    def using_timer(self, flag):
167
180
        """Call this method with True or False when timer should be
168
181
        activated or deactivated.
169
182
        """
170
183
        if flag and self._update_timer_callback_tag is None:
171
184
            # Will update the shown timer value every second
172
 
            self._update_timer_callback_tag = (GLib.timeout_add
173
 
                                               (1000,
174
 
                                                self.update_timer))
 
185
            self._update_timer_callback_tag = (
 
186
                GLib.timeout_add(1000,
 
187
                                 glib_safely(self.update_timer)))
175
188
        elif not (flag or self._update_timer_callback_tag is None):
176
189
            GLib.source_remove(self._update_timer_callback_tag)
177
190
            self._update_timer_callback_tag = None
178
 
    
 
191
 
179
192
    def checker_completed(self, exitstatus, condition, command):
180
193
        if exitstatus == 0:
181
 
            self.logger('Checker for client {} (command "{}")'
182
 
                        ' succeeded'.format(self.properties["Name"],
183
 
                                            command), level=0)
 
194
            log.debug('Checker for client %s (command "%s")'
 
195
                      " succeeded", self.properties["Name"], command)
184
196
            self.update()
185
197
            return
186
198
        # Checker failed
187
199
        if os.WIFEXITED(condition):
188
 
            self.logger('Checker for client {} (command "{}") failed'
189
 
                        ' with exit code {}'
190
 
                        .format(self.properties["Name"], command,
191
 
                                os.WEXITSTATUS(condition)))
 
200
            log.info('Checker for client %s (command "%s") failed'
 
201
                     " with exit code %d", self.properties["Name"],
 
202
                     command, os.WEXITSTATUS(condition))
192
203
        elif os.WIFSIGNALED(condition):
193
 
            self.logger('Checker for client {} (command "{}") was'
194
 
                        ' killed by signal {}'
195
 
                        .format(self.properties["Name"], command,
196
 
                                os.WTERMSIG(condition)))
 
204
            log.info('Checker for client %s (command "%s") was'
 
205
                     " killed by signal %d", self.properties["Name"],
 
206
                     command, os.WTERMSIG(condition))
197
207
        self.update()
198
 
    
 
208
 
199
209
    def checker_started(self, command):
200
210
        """Server signals that a checker started."""
201
 
        self.logger('Client {} started checker "{}"'
202
 
                    .format(self.properties["Name"],
203
 
                            command), level=0)
204
 
    
 
211
        log.debug('Client %s started checker "%s"',
 
212
                  self.properties["Name"], command)
 
213
 
205
214
    def got_secret(self):
206
 
        self.logger('Client {} received its secret'
207
 
                    .format(self.properties["Name"]))
208
 
    
 
215
        log.info("Client %s received its secret",
 
216
                 self.properties["Name"])
 
217
 
209
218
    def need_approval(self, timeout, default):
210
219
        if not default:
211
 
            message = 'Client {} needs approval within {} seconds'
 
220
            message = "Client %s needs approval within %f seconds"
212
221
        else:
213
 
            message = 'Client {} will get its secret in {} seconds'
214
 
        self.logger(message.format(self.properties["Name"],
215
 
                                   timeout/1000))
216
 
    
 
222
            message = "Client %s will get its secret in %f seconds"
 
223
        log.info(message, self.properties["Name"], timeout/1000)
 
224
 
217
225
    def rejected(self, reason):
218
 
        self.logger('Client {} was rejected; reason: {}'
219
 
                    .format(self.properties["Name"], reason))
220
 
    
 
226
        log.info("Client %s was rejected; reason: %s",
 
227
                 self.properties["Name"], reason)
 
228
 
221
229
    def selectable(self):
222
230
        """Make this a "selectable" widget.
223
 
        This overrides the method from urwid.FlowWidget."""
 
231
        This overrides the method from urwid.Widget."""
224
232
        return True
225
 
    
 
233
 
226
234
    def rows(self, maxcolrow, focus=False):
227
235
        """How many rows this widget will occupy might depend on
228
236
        whether we have focus or not.
229
 
        This overrides the method from urwid.FlowWidget"""
 
237
        This overrides the method from urwid.Widget"""
230
238
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
231
 
    
 
239
 
232
240
    def current_widget(self, focus=False):
233
241
        if focus or self.opened:
234
242
            return self._focus_widget
235
243
        return self._widget
236
 
    
 
244
 
237
245
    def update(self):
238
246
        "Called when what is visible on the screen should be updated."
239
247
        # How to add standout mode to a style
240
 
        with_standout = { "normal": "standout",
241
 
                          "bold": "bold-standout",
242
 
                          "underline-blink":
243
 
                              "underline-blink-standout",
244
 
                          "bold-underline-blink":
245
 
                              "bold-underline-blink-standout",
246
 
                          }
247
 
        
 
248
        with_standout = {"normal": "standout",
 
249
                         "bold": "bold-standout",
 
250
                         "underline-blink":
 
251
                         "underline-blink-standout",
 
252
                         "bold-underline-blink":
 
253
                         "bold-underline-blink-standout",
 
254
                         }
 
255
 
248
256
        # Rebuild focus and non-focus widgets using current properties
249
 
        
 
257
 
250
258
        # Base part of a client. Name!
251
 
        base = '{name}: '.format(name=self.properties["Name"])
 
259
        base = "{name}: ".format(name=self.properties["Name"])
252
260
        if not self.properties["Enabled"]:
253
261
            message = "DISABLED"
254
262
            self.using_timer(False)
255
263
        elif self.properties["ApprovalPending"]:
256
 
            timeout = datetime.timedelta(milliseconds
257
 
                                         = self.properties
258
 
                                         ["ApprovalDelay"])
 
264
            timeout = datetime.timedelta(
 
265
                milliseconds=self.properties["ApprovalDelay"])
259
266
            last_approval_request = isoformat_to_datetime(
260
267
                self.properties["LastApprovalRequest"])
261
268
            if last_approval_request is not None:
277
284
                timer = datetime.timedelta(0)
278
285
            else:
279
286
                expires = (datetime.datetime.strptime
280
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
287
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
281
288
                timer = max(expires - datetime.datetime.utcnow(),
282
289
                            datetime.timedelta())
283
 
            message = ('A checker has failed! Time until client'
284
 
                       ' gets disabled: {}'
 
290
            message = ("A checker has failed! Time until client"
 
291
                       " gets disabled: {}"
285
292
                       .format(str(timer).rsplit(".", 1)[0]))
286
293
            self.using_timer(True)
287
294
        else:
288
295
            message = "enabled"
289
296
            self.using_timer(False)
290
297
        self._text = "{}{}".format(base, message)
291
 
        
 
298
 
292
299
        if not urwid.supports_unicode():
293
300
            self._text = self._text.encode("ascii", "replace")
294
301
        textlist = [("normal", self._text)]
304
311
        # Run update hook, if any
305
312
        if self.update_hook is not None:
306
313
            self.update_hook()
307
 
    
 
314
 
308
315
    def update_timer(self):
309
316
        """called by GLib. Will indefinitely loop until
310
317
        GLib.source_remove() on tag is called
311
318
        """
312
319
        self.update()
313
320
        return True             # Keep calling this
314
 
    
 
321
 
315
322
    def delete(self, **kwargs):
316
323
        if self._update_timer_callback_tag is not None:
317
324
            GLib.source_remove(self._update_timer_callback_tag)
322
329
        if self.delete_hook is not None:
323
330
            self.delete_hook(self)
324
331
        return super(MandosClientWidget, self).delete(**kwargs)
325
 
    
 
332
 
326
333
    def render(self, maxcolrow, focus=False):
327
334
        """Render differently if we have focus.
328
 
        This overrides the method from urwid.FlowWidget"""
 
335
        This overrides the method from urwid.Widget"""
329
336
        return self.current_widget(focus).render(maxcolrow,
330
337
                                                 focus=focus)
331
 
    
 
338
 
332
339
    def keypress(self, maxcolrow, key):
333
340
        """Handle keys.
334
 
        This overrides the method from urwid.FlowWidget"""
 
341
        This overrides the method from urwid.Widget"""
335
342
        if key == "+":
336
343
            self.proxy.Set(client_interface, "Enabled",
337
 
                           dbus.Boolean(True), ignore_reply = True,
338
 
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
344
                           dbus.Boolean(True), ignore_reply=True,
 
345
                           dbus_interface=dbus.PROPERTIES_IFACE)
339
346
        elif key == "-":
340
347
            self.proxy.Set(client_interface, "Enabled", False,
341
 
                           ignore_reply = True,
342
 
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
348
                           ignore_reply=True,
 
349
                           dbus_interface=dbus.PROPERTIES_IFACE)
343
350
        elif key == "a":
344
351
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
345
 
                               dbus_interface = client_interface,
 
352
                               dbus_interface=client_interface,
346
353
                               ignore_reply=True)
347
354
        elif key == "d":
348
355
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
349
 
                                  dbus_interface = client_interface,
 
356
                               dbus_interface=client_interface,
350
357
                               ignore_reply=True)
351
358
        elif key == "R" or key == "_" or key == "ctrl k":
352
359
            self.server_proxy_object.RemoveClient(self.proxy
354
361
                                                  ignore_reply=True)
355
362
        elif key == "s":
356
363
            self.proxy.Set(client_interface, "CheckerRunning",
357
 
                           dbus.Boolean(True), ignore_reply = True,
358
 
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
364
                           dbus.Boolean(True), ignore_reply=True,
 
365
                           dbus_interface=dbus.PROPERTIES_IFACE)
359
366
        elif key == "S":
360
367
            self.proxy.Set(client_interface, "CheckerRunning",
361
 
                           dbus.Boolean(False), ignore_reply = True,
362
 
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
368
                           dbus.Boolean(False), ignore_reply=True,
 
369
                           dbus_interface=dbus.PROPERTIES_IFACE)
363
370
        elif key == "C":
364
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
371
            self.proxy.CheckedOK(dbus_interface=client_interface,
365
372
                                 ignore_reply=True)
366
373
        # xxx
367
374
#         elif key == "p" or key == "=":
372
379
#             self.open()
373
380
        else:
374
381
            return key
375
 
    
 
382
 
376
383
    def properties_changed(self, interface, properties, invalidated):
377
384
        """Call self.update() if any properties changed.
378
385
        This overrides the method from MandosClientPropertyCache"""
379
 
        old_values = { key: self.properties.get(key)
380
 
                       for key in properties.keys() }
 
386
        old_values = {key: self.properties.get(key)
 
387
                      for key in properties.keys()}
381
388
        super(MandosClientWidget, self).properties_changed(
382
389
            interface, properties, invalidated)
383
390
        if any(old_values[key] != self.properties.get(key)
385
392
            self.update()
386
393
 
387
394
 
 
395
def glib_safely(func, retval=True):
 
396
    def safe_func(*args, **kwargs):
 
397
        try:
 
398
            return func(*args, **kwargs)
 
399
        except Exception:
 
400
            log.exception("")
 
401
            return retval
 
402
    return safe_func
 
403
 
 
404
 
388
405
class ConstrainedListBox(urwid.ListBox):
389
406
    """Like a normal urwid.ListBox, but will consume all "up" or
390
407
    "down" key presses, thus not allowing any containing widgets to
391
408
    use them as an excuse to shift focus away from this widget.
392
409
    """
393
410
    def keypress(self, *args, **kwargs):
394
 
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
411
        ret = (super(ConstrainedListBox, self)
 
412
               .keypress(*args, **kwargs))
395
413
        if ret in ("up", "down"):
396
414
            return
397
415
        return ret
398
416
 
399
417
 
400
 
class UserInterface(object):
 
418
class UserInterface:
401
419
    """This is the entire user interface - the whole screen
402
420
    with boxes, lists of client widgets, etc.
403
421
    """
404
 
    def __init__(self, max_log_length=1000, log_level=1):
 
422
    def __init__(self, max_log_length=1000):
405
423
        DBusGMainLoop(set_as_default=True)
406
 
        
 
424
 
407
425
        self.screen = urwid.curses_display.Screen()
408
 
        
 
426
 
409
427
        self.screen.register_palette((
410
428
                ("normal",
411
429
                 "default", "default", None),
416
434
                ("standout",
417
435
                 "standout", "default", "standout"),
418
436
                ("bold-underline-blink",
419
 
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
437
                 "bold,underline,blink", "default",
 
438
                 "bold,underline,blink"),
420
439
                ("bold-standout",
421
440
                 "bold,standout", "default", "bold,standout"),
422
441
                ("underline-blink-standout",
426
445
                 "bold,underline,blink,standout", "default",
427
446
                 "bold,underline,blink,standout"),
428
447
                ))
429
 
        
 
448
 
430
449
        if urwid.supports_unicode():
431
 
            self.divider = "─" # \u2500
432
 
            #self.divider = "━" # \u2501
 
450
            self.divider = "─"  # \u2500
433
451
        else:
434
 
            #self.divider = "-" # \u002d
435
 
            self.divider = "_" # \u005f
436
 
        
 
452
            self.divider = "_"  # \u005f
 
453
 
437
454
        self.screen.start()
438
 
        
 
455
 
439
456
        self.size = self.screen.get_cols_rows()
440
 
        
 
457
 
441
458
        self.clients = urwid.SimpleListWalker([])
442
459
        self.clients_dict = {}
443
 
        
 
460
 
444
461
        # We will add Text widgets to this list
445
 
        self.log = []
 
462
        self.log = urwid.SimpleListWalker([])
446
463
        self.max_log_length = max_log_length
447
 
        
448
 
        self.log_level = log_level
449
 
        
 
464
 
450
465
        # We keep a reference to the log widget so we can remove it
451
466
        # from the ListWalker without it getting destroyed
452
467
        self.logbox = ConstrainedListBox(self.log)
453
 
        
 
468
 
454
469
        # This keeps track of whether self.uilist currently has
455
470
        # self.logbox in it or not
456
471
        self.log_visible = True
457
472
        self.log_wrap = "any"
458
 
        
 
473
 
 
474
        self.loghandler = UILogHandler(self)
 
475
 
459
476
        self.rebuild()
460
 
        self.log_message_raw(("bold",
461
 
                              "Mandos Monitor version " + version))
462
 
        self.log_message_raw(("bold",
463
 
                              "q: Quit  ?: Help"))
464
 
        
465
 
        self.busname = domain + '.Mandos'
 
477
        self.add_log_line(("bold",
 
478
                           "Mandos Monitor version " + version))
 
479
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
480
 
 
481
        self.busname = domain + ".Mandos"
466
482
        self.main_loop = GLib.MainLoop()
467
 
    
468
 
    def client_not_found(self, fingerprint, address):
469
 
        self.log_message("Client with address {} and fingerprint {}"
470
 
                         " could not be found"
471
 
                         .format(address, fingerprint))
472
 
    
 
483
 
 
484
    def client_not_found(self, key_id, address):
 
485
        log.info("Client with address %s and key ID %s could"
 
486
                 " not be found", address, key_id)
 
487
 
473
488
    def rebuild(self):
474
489
        """This rebuilds the User Interface.
475
490
        Call this when the widget layout needs to change"""
476
491
        self.uilist = []
477
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
492
        # self.uilist.append(urwid.ListBox(self.clients))
478
493
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
479
494
                                                          clients),
480
 
                                       #header=urwid.Divider(),
 
495
                                       # header=urwid.Divider(),
481
496
                                       header=None,
482
 
                                       footer=
483
 
                                       urwid.Divider(div_char=
484
 
                                                     self.divider)))
 
497
                                       footer=urwid.Divider(
 
498
                                           div_char=self.divider)))
485
499
        if self.log_visible:
486
500
            self.uilist.append(self.logbox)
487
501
        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
 
502
 
 
503
    def add_log_line(self, markup):
501
504
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
502
 
        if (self.max_log_length
503
 
            and 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),
 
505
        if self.max_log_length:
 
506
            if len(self.log) > self.max_log_length:
 
507
                del self.log[0:(len(self.log) - self.max_log_length)]
 
508
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
506
509
                              coming_from="above")
507
510
        self.refresh()
508
 
    
 
511
 
509
512
    def toggle_log_display(self):
510
513
        """Toggle visibility of the log buffer."""
511
514
        self.log_visible = not self.log_visible
512
515
        self.rebuild()
513
 
        self.log_message("Log visibility changed to: {}"
514
 
                         .format(self.log_visible), level=0)
515
 
    
 
516
        log.debug("Log visibility changed to: %s", self.log_visible)
 
517
 
516
518
    def change_log_display(self):
517
519
        """Change type of log display.
518
520
        Currently, this toggles wrapping of text lines."""
522
524
            self.log_wrap = "clip"
523
525
        for textwidget in self.log:
524
526
            textwidget.set_wrap_mode(self.log_wrap)
525
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
526
 
                         level=0)
527
 
    
 
527
        log.debug("Wrap mode: %s", self.log_wrap)
 
528
 
528
529
    def find_and_remove_client(self, path, interfaces):
529
530
        """Find a client by its object path and remove it.
530
 
        
 
531
 
531
532
        This is connected to the InterfacesRemoved signal from the
532
533
        Mandos server object."""
533
534
        if client_interface not in interfaces:
537
538
            client = self.clients_dict[path]
538
539
        except KeyError:
539
540
            # not found?
540
 
            self.log_message("Unknown client {!r} removed"
541
 
                             .format(path))
 
541
            log.warning("Unknown client %s removed", path)
542
542
            return
543
543
        client.delete()
544
 
    
 
544
 
545
545
    def add_new_client(self, path, ifs_and_props):
546
546
        """Find a client by its object path and remove it.
547
 
        
 
547
 
548
548
        This is connected to the InterfacesAdded signal from the
549
549
        Mandos server object.
550
550
        """
552
552
            # Not a Mandos client object; ignore
553
553
            return
554
554
        client_proxy_object = self.bus.get_object(self.busname, path)
555
 
        self.add_client(MandosClientWidget(server_proxy_object
556
 
                                           =self.mandos_serv,
557
 
                                           proxy_object
558
 
                                           =client_proxy_object,
559
 
                                           update_hook
560
 
                                           =self.refresh,
561
 
                                           delete_hook
562
 
                                           =self.remove_client,
563
 
                                           logger
564
 
                                           =self.log_message,
565
 
                                           properties
566
 
                                           = dict(ifs_and_props[
567
 
                                               client_interface])),
 
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
            properties=dict(ifs_and_props[client_interface])),
568
561
                        path=path)
569
 
    
 
562
 
570
563
    def add_client(self, client, path=None):
571
564
        self.clients.append(client)
572
565
        if path is None:
574
567
        self.clients_dict[path] = client
575
568
        self.clients.sort(key=lambda c: c.properties["Name"])
576
569
        self.refresh()
577
 
    
 
570
 
578
571
    def remove_client(self, client, path=None):
579
572
        self.clients.remove(client)
580
573
        if path is None:
581
574
            path = client.proxy.object_path
582
575
        del self.clients_dict[path]
583
576
        self.refresh()
584
 
    
 
577
 
585
578
    def refresh(self):
586
579
        """Redraw the screen"""
587
580
        canvas = self.topwidget.render(self.size, focus=True)
588
581
        self.screen.draw_screen(self.size, canvas)
589
 
    
 
582
 
590
583
    def run(self):
591
584
        """Start the main loop and exit when it's done."""
 
585
        log.addHandler(self.loghandler)
 
586
        self.orig_log_propagate = log.propagate
 
587
        log.propagate = False
 
588
        self.orig_log_level = log.level
 
589
        log.setLevel("INFO")
592
590
        self.bus = dbus.SystemBus()
593
591
        mandos_dbus_objc = self.bus.get_object(
594
592
            self.busname, "/", follow_name_owner_changes=True)
595
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
596
 
                                          dbus_interface
597
 
                                          = server_interface)
 
593
        self.mandos_serv = dbus.Interface(
 
594
            mandos_dbus_objc, dbus_interface=server_interface)
598
595
        try:
599
596
            mandos_clients = (self.mandos_serv
600
597
                              .GetAllClientsWithProperties())
601
598
            if not mandos_clients:
602
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
599
                log.warning("Note: Server has no clients.")
603
600
        except dbus.exceptions.DBusException:
604
 
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
601
            log.warning("Note: No Mandos server running.")
605
602
            mandos_clients = dbus.Dictionary()
606
 
        
 
603
 
607
604
        (self.mandos_serv
608
605
         .connect_to_signal("InterfacesRemoved",
609
606
                            self.find_and_remove_client,
610
 
                            dbus_interface
611
 
                            = dbus.OBJECT_MANAGER_IFACE,
 
607
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
612
608
                            byte_arrays=True))
613
609
        (self.mandos_serv
614
610
         .connect_to_signal("InterfacesAdded",
615
611
                            self.add_new_client,
616
 
                            dbus_interface
617
 
                            = dbus.OBJECT_MANAGER_IFACE,
 
612
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
618
613
                            byte_arrays=True))
619
614
        (self.mandos_serv
620
615
         .connect_to_signal("ClientNotFound",
624
619
        for path, client in mandos_clients.items():
625
620
            client_proxy_object = self.bus.get_object(self.busname,
626
621
                                                      path)
627
 
            self.add_client(MandosClientWidget(server_proxy_object
628
 
                                               =self.mandos_serv,
629
 
                                               proxy_object
630
 
                                               =client_proxy_object,
631
 
                                               properties=client,
632
 
                                               update_hook
633
 
                                               =self.refresh,
634
 
                                               delete_hook
635
 
                                               =self.remove_client,
636
 
                                               logger
637
 
                                               =self.log_message),
 
622
            self.add_client(MandosClientWidget(
 
623
                server_proxy_object=self.mandos_serv,
 
624
                proxy_object=client_proxy_object,
 
625
                properties=client,
 
626
                update_hook=self.refresh,
 
627
                delete_hook=self.remove_client),
638
628
                            path=path)
639
 
        
 
629
 
640
630
        self.refresh()
641
 
        self._input_callback_tag = (GLib.io_add_watch
642
 
                                    (sys.stdin.fileno(),
643
 
                                     GLib.IO_IN,
644
 
                                     self.process_input))
 
631
        self._input_callback_tag = (
 
632
            GLib.io_add_watch(
 
633
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
634
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
635
                glib_safely(self.process_input)))
645
636
        self.main_loop.run()
646
637
        # Main loop has finished, we should close everything now
647
638
        GLib.source_remove(self._input_callback_tag)
648
 
        self.screen.stop()
649
 
    
 
639
        with warnings.catch_warnings():
 
640
            warnings.simplefilter("ignore", BytesWarning)
 
641
            self.screen.stop()
 
642
 
650
643
    def stop(self):
651
644
        self.main_loop.quit()
652
 
    
 
645
        log.removeHandler(self.loghandler)
 
646
        log.propagate = self.orig_log_propagate
 
647
 
653
648
    def process_input(self, source, condition):
654
649
        keys = self.screen.get_input()
655
 
        translations = { "ctrl n": "down",      # Emacs
656
 
                         "ctrl p": "up",        # Emacs
657
 
                         "ctrl v": "page down", # Emacs
658
 
                         "meta v": "page up",   # Emacs
659
 
                         " ": "page down",      # less
660
 
                         "f": "page down",      # less
661
 
                         "b": "page up",        # less
662
 
                         "j": "down",           # vi
663
 
                         "k": "up",             # vi
664
 
                         }
 
650
        translations = {"ctrl n": "down",       # Emacs
 
651
                        "ctrl p": "up",         # Emacs
 
652
                        "ctrl v": "page down",  # Emacs
 
653
                        "meta v": "page up",    # Emacs
 
654
                        " ": "page down",       # less
 
655
                        "f": "page down",       # less
 
656
                        "b": "page up",         # less
 
657
                        "j": "down",            # vi
 
658
                        "k": "up",              # vi
 
659
                        }
665
660
        for key in keys:
666
661
            try:
667
662
                key = translations[key]
668
663
            except KeyError:    # :-)
669
664
                pass
670
 
            
 
665
 
671
666
            if key == "q" or key == "Q":
672
667
                self.stop()
673
668
                break
687
682
                if not self.log_visible:
688
683
                    self.log_visible = True
689
684
                    self.rebuild()
690
 
                self.log_message_raw(("bold",
691
 
                                      "  ".
692
 
                                      join(("q: Quit",
693
 
                                            "?: Help",
694
 
                                            "l: Log window toggle",
695
 
                                            "TAB: Switch window",
696
 
                                            "w: Wrap (log lines)",
697
 
                                            "v: Toggle verbose log",
698
 
                                            ))))
699
 
                self.log_message_raw(("bold",
700
 
                                      "  "
701
 
                                      .join(("Clients:",
702
 
                                             "+: Enable",
703
 
                                             "-: Disable",
704
 
                                             "R: Remove",
705
 
                                             "s: Start new checker",
706
 
                                             "S: Stop checker",
707
 
                                             "C: Checker OK",
708
 
                                             "a: Approve",
709
 
                                             "d: Deny"))))
 
685
                self.add_log_line(("bold",
 
686
                                   "  ".join(("q: Quit",
 
687
                                              "?: Help",
 
688
                                              "l: Log window toggle",
 
689
                                              "TAB: Switch window",
 
690
                                              "w: Wrap (log lines)",
 
691
                                              "v: Toggle verbose log",
 
692
                                   ))))
 
693
                self.add_log_line(("bold",
 
694
                                   "  ".join(("Clients:",
 
695
                                              "+: Enable",
 
696
                                              "-: Disable",
 
697
                                              "R: Remove",
 
698
                                              "s: Start new checker",
 
699
                                              "S: Stop checker",
 
700
                                              "C: Checker OK",
 
701
                                              "a: Approve",
 
702
                                              "d: Deny",
 
703
                                   ))))
710
704
                self.refresh()
711
705
            elif key == "tab":
712
706
                if self.topwidget.get_focus() is self.logbox:
715
709
                    self.topwidget.set_focus(self.logbox)
716
710
                self.refresh()
717
711
            elif key == "v":
718
 
                if self.log_level == 0:
719
 
                    self.log_level = 1
720
 
                    self.log_message("Verbose mode: Off")
 
712
                if log.level < logging.INFO:
 
713
                    log.setLevel(logging.INFO)
 
714
                    log.info("Verbose mode: Off")
721
715
                else:
722
 
                    self.log_level = 0
723
 
                    self.log_message("Verbose mode: On")
724
 
            #elif (key == "end" or key == "meta >" or key == "G"
725
 
            #      or key == ">"):
726
 
            #    pass            # xxx end-of-buffer
727
 
            #elif (key == "home" or key == "meta <" or key == "g"
728
 
            #      or key == "<"):
729
 
            #    pass            # xxx beginning-of-buffer
730
 
            #elif key == "ctrl e" or key == "$":
731
 
            #    pass            # xxx move-end-of-line
732
 
            #elif key == "ctrl a" or key == "^":
733
 
            #    pass            # xxx move-beginning-of-line
734
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
735
 
            #    pass            # xxx left
736
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
737
 
            #    pass            # xxx right
738
 
            #elif key == "a":
739
 
            #    pass            # scroll up log
740
 
            #elif key == "z":
741
 
            #    pass            # scroll down log
 
716
                    log.setLevel(logging.NOTSET)
 
717
                    log.info("Verbose mode: On")
 
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
742
736
            elif self.topwidget.selectable():
743
737
                self.topwidget.keypress(self.size, key)
744
738
                self.refresh()
745
739
        return True
746
740
 
 
741
 
 
742
class UILogHandler(logging.Handler):
 
743
    def __init__(self, ui, *args, **kwargs):
 
744
        self.ui = ui
 
745
        super(UILogHandler, self).__init__(*args, **kwargs)
 
746
        self.setFormatter(
 
747
            logging.Formatter("%(asctime)s: %(message)s"))
 
748
    def emit(self, record):
 
749
        msg = self.format(record)
 
750
        if record.levelno > logging.INFO:
 
751
            msg = ("bold", msg)
 
752
        self.ui.add_log_line(msg)
 
753
 
 
754
 
747
755
ui = UserInterface()
748
756
try:
749
757
    ui.run()
750
758
except KeyboardInterrupt:
751
 
    ui.screen.stop()
752
 
except Exception as e:
753
 
    ui.log_message(str(e))
754
 
    ui.screen.stop()
 
759
    with warnings.catch_warnings():
 
760
        warnings.filterwarnings("ignore", "", BytesWarning)
 
761
        ui.screen.stop()
 
762
except Exception:
 
763
    with warnings.catch_warnings():
 
764
        warnings.filterwarnings("ignore", "", BytesWarning)
 
765
        ui.screen.stop()
755
766
    raise