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  • Committer: Teddy Hogeborn
  • Date: 2024-09-08 05:08:20 UTC
  • Revision ID: teddy@recompile.se-20240908050820-jpkid6ufjb9n107o
http://bugs.debian.org/1079588
Fix #1079588 by not outputting to stdout in maintainer scripts

From The Debconf Programmer's Tutorial: "Anything your maintainer
scripts output to standard output is passed into the frontend as a
command".  We must make sure to redirect stdout to stderr for every
command in the postinst and postrm scripts which might output to
stdout.

* debian/mandos-client.postinst (update_initramfs): Add "1>&2" to
  invocations of update-initramfs and /etc/kernel/postinst.d/dracut.
  (add_mandos_user): Add "1>&2" to invocations of usermod, groupmod,
  and adduser.
  (create_keys): Add "1>&2" to invocations of mandos-keygen,
  gpg-connect-agent, certtool, and openssl.
  (create_dh_params): Add "1>&2" to invocations of certtool and
  openssl.  Add "--force" option to "rm".
* debian/mandos-client.postrm (update_initramfs): Add "1>&2" to
  invocations of update-initramfs and /etc/kernel/postinst.d/dracut.

Closes: #1079588
Reported-By: Ben Hutchings <ben@decadent.org.uk>

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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)
55
67
 
56
68
# Some useful constants
57
 
domain = 'se.recompile'
58
 
server_interface = domain + '.Mandos'
59
 
client_interface = domain + '.Mandos.Client'
60
 
version = "1.7.6"
 
69
domain = "se.recompile"
 
70
server_interface = domain + ".Mandos"
 
71
client_interface = domain + ".Mandos.Client"
 
72
version = "1.8.16"
61
73
 
62
74
try:
63
75
    dbus.OBJECT_MANAGER_IFACE
64
76
except AttributeError:
65
77
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
66
78
 
 
79
 
67
80
def isoformat_to_datetime(iso):
68
81
    "Parse an ISO 8601 date string to a datetime.datetime()"
69
82
    if not iso:
77
90
                             int(day),
78
91
                             int(hour),
79
92
                             int(minute),
80
 
                             int(second),           # Whole seconds
81
 
                             int(fraction*1000000)) # Microseconds
82
 
 
83
 
class MandosClientPropertyCache(object):
 
93
                             int(second),            # Whole seconds
 
94
                             int(fraction*1000000))  # Microseconds
 
95
 
 
96
 
 
97
class MandosClientPropertyCache:
84
98
    """This wraps a Mandos Client D-Bus proxy object, caches the
85
99
    properties and calls a hook function when any of them are
86
100
    changed.
87
101
    """
88
102
    def __init__(self, proxy_object=None, properties=None, **kwargs):
89
 
        self.proxy = proxy_object # Mandos Client proxy object
 
103
        self.proxy = proxy_object  # Mandos Client proxy object
90
104
        self.properties = dict() if properties is None else properties
91
105
        self.property_changed_match = (
92
106
            self.proxy.connect_to_signal("PropertiesChanged",
93
107
                                         self.properties_changed,
94
108
                                         dbus.PROPERTIES_IFACE,
95
109
                                         byte_arrays=True))
96
 
        
 
110
 
97
111
        if properties is None:
98
 
            self.properties.update(
99
 
                self.proxy.GetAll(client_interface,
100
 
                                  dbus_interface
101
 
                                  = dbus.PROPERTIES_IFACE))
102
 
        
 
112
            self.properties.update(self.proxy.GetAll(
 
113
                client_interface,
 
114
                dbus_interface=dbus.PROPERTIES_IFACE))
 
115
 
103
116
        super(MandosClientPropertyCache, self).__init__(**kwargs)
104
 
    
 
117
 
105
118
    def properties_changed(self, interface, properties, invalidated):
106
119
        """This is called whenever we get a PropertiesChanged signal
107
120
        It updates the changed properties in the "properties" dict.
109
122
        # Update properties dict with new value
110
123
        if interface == client_interface:
111
124
            self.properties.update(properties)
112
 
    
 
125
 
113
126
    def delete(self):
114
127
        self.property_changed_match.remove()
115
128
 
117
130
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
118
131
    """A Mandos Client which is visible on the screen.
119
132
    """
120
 
    
 
133
 
121
134
    def __init__(self, server_proxy_object=None, update_hook=None,
122
 
                 delete_hook=None, logger=None, **kwargs):
 
135
                 delete_hook=None, **kwargs):
123
136
        # Called on update
124
137
        self.update_hook = update_hook
125
138
        # Called on delete
126
139
        self.delete_hook = delete_hook
127
140
        # Mandos Server proxy object
128
141
        self.server_proxy_object = server_proxy_object
129
 
        # Logger
130
 
        self.logger = logger
131
 
        
 
142
 
132
143
        self._update_timer_callback_tag = None
133
 
        
 
144
 
134
145
        # The widget shown normally
135
146
        self._text_widget = urwid.Text("")
136
147
        # The widget shown when we have focus
138
149
        super(MandosClientWidget, self).__init__(**kwargs)
139
150
        self.update()
140
151
        self.opened = False
141
 
        
 
152
 
142
153
        self.match_objects = (
143
154
            self.proxy.connect_to_signal("CheckerCompleted",
144
155
                                         self.checker_completed,
160
171
                                         self.rejected,
161
172
                                         client_interface,
162
173
                                         byte_arrays=True))
163
 
        self.logger('Created client {}'
164
 
                    .format(self.properties["Name"]), level=0)
165
 
    
 
174
        log.debug("Created client %s", self.properties["Name"])
 
175
 
166
176
    def using_timer(self, flag):
167
177
        """Call this method with True or False when timer should be
168
178
        activated or deactivated.
169
179
        """
170
180
        if flag and self._update_timer_callback_tag is None:
171
181
            # Will update the shown timer value every second
172
 
            self._update_timer_callback_tag = (GLib.timeout_add
173
 
                                               (1000,
174
 
                                                self.update_timer))
 
182
            self._update_timer_callback_tag = (
 
183
                GLib.timeout_add(1000,
 
184
                                 glib_safely(self.update_timer)))
175
185
        elif not (flag or self._update_timer_callback_tag is None):
176
186
            GLib.source_remove(self._update_timer_callback_tag)
177
187
            self._update_timer_callback_tag = None
178
 
    
 
188
 
179
189
    def checker_completed(self, exitstatus, condition, command):
180
190
        if exitstatus == 0:
181
 
            self.logger('Checker for client {} (command "{}")'
182
 
                        ' succeeded'.format(self.properties["Name"],
183
 
                                            command), level=0)
 
191
            log.debug('Checker for client %s (command "%s")'
 
192
                      " succeeded", self.properties["Name"], command)
184
193
            self.update()
185
194
            return
186
195
        # Checker failed
187
196
        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)))
 
197
            log.info('Checker for client %s (command "%s") failed'
 
198
                     " with exit code %d", self.properties["Name"],
 
199
                     command, os.WEXITSTATUS(condition))
192
200
        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)))
 
201
            log.info('Checker for client %s (command "%s") was'
 
202
                     " killed by signal %d", self.properties["Name"],
 
203
                     command, os.WTERMSIG(condition))
197
204
        self.update()
198
 
    
 
205
 
199
206
    def checker_started(self, command):
200
207
        """Server signals that a checker started."""
201
 
        self.logger('Client {} started checker "{}"'
202
 
                    .format(self.properties["Name"],
203
 
                            command), level=0)
204
 
    
 
208
        log.debug('Client %s started checker "%s"',
 
209
                  self.properties["Name"], command)
 
210
 
205
211
    def got_secret(self):
206
 
        self.logger('Client {} received its secret'
207
 
                    .format(self.properties["Name"]))
208
 
    
 
212
        log.info("Client %s received its secret",
 
213
                 self.properties["Name"])
 
214
 
209
215
    def need_approval(self, timeout, default):
210
216
        if not default:
211
 
            message = 'Client {} needs approval within {} seconds'
 
217
            message = "Client %s needs approval within %f seconds"
212
218
        else:
213
 
            message = 'Client {} will get its secret in {} seconds'
214
 
        self.logger(message.format(self.properties["Name"],
215
 
                                   timeout/1000))
216
 
    
 
219
            message = "Client %s will get its secret in %f seconds"
 
220
        log.info(message, self.properties["Name"], timeout/1000)
 
221
 
217
222
    def rejected(self, reason):
218
 
        self.logger('Client {} was rejected; reason: {}'
219
 
                    .format(self.properties["Name"], reason))
220
 
    
 
223
        log.info("Client %s was rejected; reason: %s",
 
224
                 self.properties["Name"], reason)
 
225
 
221
226
    def selectable(self):
222
227
        """Make this a "selectable" widget.
223
228
        This overrides the method from urwid.FlowWidget."""
224
229
        return True
225
 
    
 
230
 
226
231
    def rows(self, maxcolrow, focus=False):
227
232
        """How many rows this widget will occupy might depend on
228
233
        whether we have focus or not.
229
234
        This overrides the method from urwid.FlowWidget"""
230
235
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
231
 
    
 
236
 
232
237
    def current_widget(self, focus=False):
233
238
        if focus or self.opened:
234
239
            return self._focus_widget
235
240
        return self._widget
236
 
    
 
241
 
237
242
    def update(self):
238
243
        "Called when what is visible on the screen should be updated."
239
244
        # 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
 
        
 
245
        with_standout = {"normal": "standout",
 
246
                         "bold": "bold-standout",
 
247
                         "underline-blink":
 
248
                         "underline-blink-standout",
 
249
                         "bold-underline-blink":
 
250
                         "bold-underline-blink-standout",
 
251
                         }
 
252
 
248
253
        # Rebuild focus and non-focus widgets using current properties
249
 
        
 
254
 
250
255
        # Base part of a client. Name!
251
 
        base = '{name}: '.format(name=self.properties["Name"])
 
256
        base = "{name}: ".format(name=self.properties["Name"])
252
257
        if not self.properties["Enabled"]:
253
258
            message = "DISABLED"
254
259
            self.using_timer(False)
255
260
        elif self.properties["ApprovalPending"]:
256
 
            timeout = datetime.timedelta(milliseconds
257
 
                                         = self.properties
258
 
                                         ["ApprovalDelay"])
 
261
            timeout = datetime.timedelta(
 
262
                milliseconds=self.properties["ApprovalDelay"])
259
263
            last_approval_request = isoformat_to_datetime(
260
264
                self.properties["LastApprovalRequest"])
261
265
            if last_approval_request is not None:
277
281
                timer = datetime.timedelta(0)
278
282
            else:
279
283
                expires = (datetime.datetime.strptime
280
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
284
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
281
285
                timer = max(expires - datetime.datetime.utcnow(),
282
286
                            datetime.timedelta())
283
 
            message = ('A checker has failed! Time until client'
284
 
                       ' gets disabled: {}'
 
287
            message = ("A checker has failed! Time until client"
 
288
                       " gets disabled: {}"
285
289
                       .format(str(timer).rsplit(".", 1)[0]))
286
290
            self.using_timer(True)
287
291
        else:
288
292
            message = "enabled"
289
293
            self.using_timer(False)
290
294
        self._text = "{}{}".format(base, message)
291
 
        
 
295
 
292
296
        if not urwid.supports_unicode():
293
297
            self._text = self._text.encode("ascii", "replace")
294
298
        textlist = [("normal", self._text)]
304
308
        # Run update hook, if any
305
309
        if self.update_hook is not None:
306
310
            self.update_hook()
307
 
    
 
311
 
308
312
    def update_timer(self):
309
313
        """called by GLib. Will indefinitely loop until
310
314
        GLib.source_remove() on tag is called
311
315
        """
312
316
        self.update()
313
317
        return True             # Keep calling this
314
 
    
 
318
 
315
319
    def delete(self, **kwargs):
316
320
        if self._update_timer_callback_tag is not None:
317
321
            GLib.source_remove(self._update_timer_callback_tag)
322
326
        if self.delete_hook is not None:
323
327
            self.delete_hook(self)
324
328
        return super(MandosClientWidget, self).delete(**kwargs)
325
 
    
 
329
 
326
330
    def render(self, maxcolrow, focus=False):
327
331
        """Render differently if we have focus.
328
332
        This overrides the method from urwid.FlowWidget"""
329
333
        return self.current_widget(focus).render(maxcolrow,
330
334
                                                 focus=focus)
331
 
    
 
335
 
332
336
    def keypress(self, maxcolrow, key):
333
337
        """Handle keys.
334
338
        This overrides the method from urwid.FlowWidget"""
335
339
        if key == "+":
336
340
            self.proxy.Set(client_interface, "Enabled",
337
 
                           dbus.Boolean(True), ignore_reply = True,
338
 
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
341
                           dbus.Boolean(True), ignore_reply=True,
 
342
                           dbus_interface=dbus.PROPERTIES_IFACE)
339
343
        elif key == "-":
340
344
            self.proxy.Set(client_interface, "Enabled", False,
341
 
                           ignore_reply = True,
342
 
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
345
                           ignore_reply=True,
 
346
                           dbus_interface=dbus.PROPERTIES_IFACE)
343
347
        elif key == "a":
344
348
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
345
 
                               dbus_interface = client_interface,
 
349
                               dbus_interface=client_interface,
346
350
                               ignore_reply=True)
347
351
        elif key == "d":
348
352
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
349
 
                                  dbus_interface = client_interface,
 
353
                               dbus_interface=client_interface,
350
354
                               ignore_reply=True)
351
355
        elif key == "R" or key == "_" or key == "ctrl k":
352
356
            self.server_proxy_object.RemoveClient(self.proxy
354
358
                                                  ignore_reply=True)
355
359
        elif key == "s":
356
360
            self.proxy.Set(client_interface, "CheckerRunning",
357
 
                           dbus.Boolean(True), ignore_reply = True,
358
 
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
361
                           dbus.Boolean(True), ignore_reply=True,
 
362
                           dbus_interface=dbus.PROPERTIES_IFACE)
359
363
        elif key == "S":
360
364
            self.proxy.Set(client_interface, "CheckerRunning",
361
 
                           dbus.Boolean(False), ignore_reply = True,
362
 
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
365
                           dbus.Boolean(False), ignore_reply=True,
 
366
                           dbus_interface=dbus.PROPERTIES_IFACE)
363
367
        elif key == "C":
364
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
368
            self.proxy.CheckedOK(dbus_interface=client_interface,
365
369
                                 ignore_reply=True)
366
370
        # xxx
367
371
#         elif key == "p" or key == "=":
372
376
#             self.open()
373
377
        else:
374
378
            return key
375
 
    
 
379
 
376
380
    def properties_changed(self, interface, properties, invalidated):
377
381
        """Call self.update() if any properties changed.
378
382
        This overrides the method from MandosClientPropertyCache"""
379
 
        old_values = { key: self.properties.get(key)
380
 
                       for key in properties.keys() }
 
383
        old_values = {key: self.properties.get(key)
 
384
                      for key in properties.keys()}
381
385
        super(MandosClientWidget, self).properties_changed(
382
386
            interface, properties, invalidated)
383
387
        if any(old_values[key] != self.properties.get(key)
385
389
            self.update()
386
390
 
387
391
 
 
392
def glib_safely(func, retval=True):
 
393
    def safe_func(*args, **kwargs):
 
394
        try:
 
395
            return func(*args, **kwargs)
 
396
        except Exception:
 
397
            log.exception("")
 
398
            return retval
 
399
    return safe_func
 
400
 
 
401
 
388
402
class ConstrainedListBox(urwid.ListBox):
389
403
    """Like a normal urwid.ListBox, but will consume all "up" or
390
404
    "down" key presses, thus not allowing any containing widgets to
391
405
    use them as an excuse to shift focus away from this widget.
392
406
    """
393
407
    def keypress(self, *args, **kwargs):
394
 
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
408
        ret = (super(ConstrainedListBox, self)
 
409
               .keypress(*args, **kwargs))
395
410
        if ret in ("up", "down"):
396
411
            return
397
412
        return ret
398
413
 
399
414
 
400
 
class UserInterface(object):
 
415
class UserInterface:
401
416
    """This is the entire user interface - the whole screen
402
417
    with boxes, lists of client widgets, etc.
403
418
    """
404
 
    def __init__(self, max_log_length=1000, log_level=1):
 
419
    def __init__(self, max_log_length=1000):
405
420
        DBusGMainLoop(set_as_default=True)
406
 
        
 
421
 
407
422
        self.screen = urwid.curses_display.Screen()
408
 
        
 
423
 
409
424
        self.screen.register_palette((
410
425
                ("normal",
411
426
                 "default", "default", None),
416
431
                ("standout",
417
432
                 "standout", "default", "standout"),
418
433
                ("bold-underline-blink",
419
 
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
434
                 "bold,underline,blink", "default",
 
435
                 "bold,underline,blink"),
420
436
                ("bold-standout",
421
437
                 "bold,standout", "default", "bold,standout"),
422
438
                ("underline-blink-standout",
426
442
                 "bold,underline,blink,standout", "default",
427
443
                 "bold,underline,blink,standout"),
428
444
                ))
429
 
        
 
445
 
430
446
        if urwid.supports_unicode():
431
 
            self.divider = "─" # \u2500
432
 
            #self.divider = "━" # \u2501
 
447
            self.divider = "─"  # \u2500
433
448
        else:
434
 
            #self.divider = "-" # \u002d
435
 
            self.divider = "_" # \u005f
436
 
        
 
449
            self.divider = "_"  # \u005f
 
450
 
437
451
        self.screen.start()
438
 
        
 
452
 
439
453
        self.size = self.screen.get_cols_rows()
440
 
        
 
454
 
441
455
        self.clients = urwid.SimpleListWalker([])
442
456
        self.clients_dict = {}
443
 
        
 
457
 
444
458
        # We will add Text widgets to this list
445
 
        self.log = []
 
459
        self.log = urwid.SimpleListWalker([])
446
460
        self.max_log_length = max_log_length
447
 
        
448
 
        self.log_level = log_level
449
 
        
 
461
 
450
462
        # We keep a reference to the log widget so we can remove it
451
463
        # from the ListWalker without it getting destroyed
452
464
        self.logbox = ConstrainedListBox(self.log)
453
 
        
 
465
 
454
466
        # This keeps track of whether self.uilist currently has
455
467
        # self.logbox in it or not
456
468
        self.log_visible = True
457
469
        self.log_wrap = "any"
458
 
        
 
470
 
 
471
        self.loghandler = UILogHandler(self)
 
472
 
459
473
        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'
 
474
        self.add_log_line(("bold",
 
475
                           "Mandos Monitor version " + version))
 
476
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
477
 
 
478
        self.busname = domain + ".Mandos"
466
479
        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
 
    
 
480
 
 
481
    def client_not_found(self, key_id, address):
 
482
        log.info("Client with address %s and key ID %s could"
 
483
                 " not be found", address, key_id)
 
484
 
473
485
    def rebuild(self):
474
486
        """This rebuilds the User Interface.
475
487
        Call this when the widget layout needs to change"""
476
488
        self.uilist = []
477
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
489
        # self.uilist.append(urwid.ListBox(self.clients))
478
490
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
479
491
                                                          clients),
480
 
                                       #header=urwid.Divider(),
 
492
                                       # header=urwid.Divider(),
481
493
                                       header=None,
482
 
                                       footer=
483
 
                                       urwid.Divider(div_char=
484
 
                                                     self.divider)))
 
494
                                       footer=urwid.Divider(
 
495
                                           div_char=self.divider)))
485
496
        if self.log_visible:
486
497
            self.uilist.append(self.logbox)
487
498
        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
 
499
 
 
500
    def add_log_line(self, markup):
501
501
        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),
 
502
        if self.max_log_length:
 
503
            if len(self.log) > self.max_log_length:
 
504
                del self.log[0:(len(self.log) - self.max_log_length)]
 
505
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
506
506
                              coming_from="above")
507
507
        self.refresh()
508
 
    
 
508
 
509
509
    def toggle_log_display(self):
510
510
        """Toggle visibility of the log buffer."""
511
511
        self.log_visible = not self.log_visible
512
512
        self.rebuild()
513
 
        self.log_message("Log visibility changed to: {}"
514
 
                         .format(self.log_visible), level=0)
515
 
    
 
513
        log.debug("Log visibility changed to: %s", self.log_visible)
 
514
 
516
515
    def change_log_display(self):
517
516
        """Change type of log display.
518
517
        Currently, this toggles wrapping of text lines."""
522
521
            self.log_wrap = "clip"
523
522
        for textwidget in self.log:
524
523
            textwidget.set_wrap_mode(self.log_wrap)
525
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
526
 
                         level=0)
527
 
    
 
524
        log.debug("Wrap mode: %s", self.log_wrap)
 
525
 
528
526
    def find_and_remove_client(self, path, interfaces):
529
527
        """Find a client by its object path and remove it.
530
 
        
 
528
 
531
529
        This is connected to the InterfacesRemoved signal from the
532
530
        Mandos server object."""
533
531
        if client_interface not in interfaces:
537
535
            client = self.clients_dict[path]
538
536
        except KeyError:
539
537
            # not found?
540
 
            self.log_message("Unknown client {!r} removed"
541
 
                             .format(path))
 
538
            log.warning("Unknown client %s removed", path)
542
539
            return
543
540
        client.delete()
544
 
    
 
541
 
545
542
    def add_new_client(self, path, ifs_and_props):
546
543
        """Find a client by its object path and remove it.
547
 
        
 
544
 
548
545
        This is connected to the InterfacesAdded signal from the
549
546
        Mandos server object.
550
547
        """
552
549
            # Not a Mandos client object; ignore
553
550
            return
554
551
        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])),
 
552
        self.add_client(MandosClientWidget(
 
553
            server_proxy_object=self.mandos_serv,
 
554
            proxy_object=client_proxy_object,
 
555
            update_hook=self.refresh,
 
556
            delete_hook=self.remove_client,
 
557
            properties=dict(ifs_and_props[client_interface])),
568
558
                        path=path)
569
 
    
 
559
 
570
560
    def add_client(self, client, path=None):
571
561
        self.clients.append(client)
572
562
        if path is None:
574
564
        self.clients_dict[path] = client
575
565
        self.clients.sort(key=lambda c: c.properties["Name"])
576
566
        self.refresh()
577
 
    
 
567
 
578
568
    def remove_client(self, client, path=None):
579
569
        self.clients.remove(client)
580
570
        if path is None:
581
571
            path = client.proxy.object_path
582
572
        del self.clients_dict[path]
583
573
        self.refresh()
584
 
    
 
574
 
585
575
    def refresh(self):
586
576
        """Redraw the screen"""
587
577
        canvas = self.topwidget.render(self.size, focus=True)
588
578
        self.screen.draw_screen(self.size, canvas)
589
 
    
 
579
 
590
580
    def run(self):
591
581
        """Start the main loop and exit when it's done."""
 
582
        log.addHandler(self.loghandler)
 
583
        self.orig_log_propagate = log.propagate
 
584
        log.propagate = False
 
585
        self.orig_log_level = log.level
 
586
        log.setLevel("INFO")
592
587
        self.bus = dbus.SystemBus()
593
588
        mandos_dbus_objc = self.bus.get_object(
594
589
            self.busname, "/", follow_name_owner_changes=True)
595
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
596
 
                                          dbus_interface
597
 
                                          = server_interface)
 
590
        self.mandos_serv = dbus.Interface(
 
591
            mandos_dbus_objc, dbus_interface=server_interface)
598
592
        try:
599
593
            mandos_clients = (self.mandos_serv
600
594
                              .GetAllClientsWithProperties())
601
595
            if not mandos_clients:
602
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
596
                log.warning("Note: Server has no clients.")
603
597
        except dbus.exceptions.DBusException:
604
 
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
598
            log.warning("Note: No Mandos server running.")
605
599
            mandos_clients = dbus.Dictionary()
606
 
        
 
600
 
607
601
        (self.mandos_serv
608
602
         .connect_to_signal("InterfacesRemoved",
609
603
                            self.find_and_remove_client,
610
 
                            dbus_interface
611
 
                            = dbus.OBJECT_MANAGER_IFACE,
 
604
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
612
605
                            byte_arrays=True))
613
606
        (self.mandos_serv
614
607
         .connect_to_signal("InterfacesAdded",
615
608
                            self.add_new_client,
616
 
                            dbus_interface
617
 
                            = dbus.OBJECT_MANAGER_IFACE,
 
609
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
618
610
                            byte_arrays=True))
619
611
        (self.mandos_serv
620
612
         .connect_to_signal("ClientNotFound",
624
616
        for path, client in mandos_clients.items():
625
617
            client_proxy_object = self.bus.get_object(self.busname,
626
618
                                                      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),
 
619
            self.add_client(MandosClientWidget(
 
620
                server_proxy_object=self.mandos_serv,
 
621
                proxy_object=client_proxy_object,
 
622
                properties=client,
 
623
                update_hook=self.refresh,
 
624
                delete_hook=self.remove_client),
638
625
                            path=path)
639
 
        
 
626
 
640
627
        self.refresh()
641
 
        self._input_callback_tag = (GLib.io_add_watch
642
 
                                    (sys.stdin.fileno(),
643
 
                                     GLib.IO_IN,
644
 
                                     self.process_input))
 
628
        self._input_callback_tag = (
 
629
            GLib.io_add_watch(
 
630
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
631
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
632
                glib_safely(self.process_input)))
645
633
        self.main_loop.run()
646
634
        # Main loop has finished, we should close everything now
647
635
        GLib.source_remove(self._input_callback_tag)
648
 
        self.screen.stop()
649
 
    
 
636
        with warnings.catch_warnings():
 
637
            warnings.simplefilter("ignore", BytesWarning)
 
638
            self.screen.stop()
 
639
 
650
640
    def stop(self):
651
641
        self.main_loop.quit()
652
 
    
 
642
        log.removeHandler(self.loghandler)
 
643
        log.propagate = self.orig_log_propagate
 
644
 
653
645
    def process_input(self, source, condition):
654
646
        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
 
                         }
 
647
        translations = {"ctrl n": "down",       # Emacs
 
648
                        "ctrl p": "up",         # Emacs
 
649
                        "ctrl v": "page down",  # Emacs
 
650
                        "meta v": "page up",    # Emacs
 
651
                        " ": "page down",       # less
 
652
                        "f": "page down",       # less
 
653
                        "b": "page up",         # less
 
654
                        "j": "down",            # vi
 
655
                        "k": "up",              # vi
 
656
                        }
665
657
        for key in keys:
666
658
            try:
667
659
                key = translations[key]
668
660
            except KeyError:    # :-)
669
661
                pass
670
 
            
 
662
 
671
663
            if key == "q" or key == "Q":
672
664
                self.stop()
673
665
                break
687
679
                if not self.log_visible:
688
680
                    self.log_visible = True
689
681
                    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"))))
 
682
                self.add_log_line(("bold",
 
683
                                   "  ".join(("q: Quit",
 
684
                                              "?: Help",
 
685
                                              "l: Log window toggle",
 
686
                                              "TAB: Switch window",
 
687
                                              "w: Wrap (log lines)",
 
688
                                              "v: Toggle verbose log",
 
689
                                   ))))
 
690
                self.add_log_line(("bold",
 
691
                                   "  ".join(("Clients:",
 
692
                                              "+: Enable",
 
693
                                              "-: Disable",
 
694
                                              "R: Remove",
 
695
                                              "s: Start new checker",
 
696
                                              "S: Stop checker",
 
697
                                              "C: Checker OK",
 
698
                                              "a: Approve",
 
699
                                              "d: Deny",
 
700
                                   ))))
710
701
                self.refresh()
711
702
            elif key == "tab":
712
703
                if self.topwidget.get_focus() is self.logbox:
715
706
                    self.topwidget.set_focus(self.logbox)
716
707
                self.refresh()
717
708
            elif key == "v":
718
 
                if self.log_level == 0:
719
 
                    self.log_level = 1
720
 
                    self.log_message("Verbose mode: Off")
 
709
                if log.level < logging.INFO:
 
710
                    log.setLevel(logging.INFO)
 
711
                    log.info("Verbose mode: Off")
721
712
                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
 
713
                    log.setLevel(logging.NOTSET)
 
714
                    log.info("Verbose mode: On")
 
715
            # elif (key == "end" or key == "meta >" or key == "G"
 
716
            #       or key == ">"):
 
717
            #     pass            # xxx end-of-buffer
 
718
            # elif (key == "home" or key == "meta <" or key == "g"
 
719
            #       or key == "<"):
 
720
            #     pass            # xxx beginning-of-buffer
 
721
            # elif key == "ctrl e" or key == "$":
 
722
            #     pass            # xxx move-end-of-line
 
723
            # elif key == "ctrl a" or key == "^":
 
724
            #     pass            # xxx move-beginning-of-line
 
725
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
726
            #     pass            # xxx left
 
727
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
728
            #     pass            # xxx right
 
729
            # elif key == "a":
 
730
            #     pass            # scroll up log
 
731
            # elif key == "z":
 
732
            #     pass            # scroll down log
742
733
            elif self.topwidget.selectable():
743
734
                self.topwidget.keypress(self.size, key)
744
735
                self.refresh()
745
736
        return True
746
737
 
 
738
 
 
739
class UILogHandler(logging.Handler):
 
740
    def __init__(self, ui, *args, **kwargs):
 
741
        self.ui = ui
 
742
        super(UILogHandler, self).__init__(*args, **kwargs)
 
743
        self.setFormatter(
 
744
            logging.Formatter("%(asctime)s: %(message)s"))
 
745
    def emit(self, record):
 
746
        msg = self.format(record)
 
747
        if record.levelno > logging.INFO:
 
748
            msg = ("bold", msg)
 
749
        self.ui.add_log_line(msg)
 
750
 
 
751
 
747
752
ui = UserInterface()
748
753
try:
749
754
    ui.run()
750
755
except KeyboardInterrupt:
751
 
    ui.screen.stop()
752
 
except Exception as e:
753
 
    ui.log_message(str(e))
754
 
    ui.screen.stop()
 
756
    with warnings.catch_warnings():
 
757
        warnings.filterwarnings("ignore", "", BytesWarning)
 
758
        ui.screen.stop()
 
759
except Exception:
 
760
    with warnings.catch_warnings():
 
761
        warnings.filterwarnings("ignore", "", BytesWarning)
 
762
        ui.screen.stop()
755
763
    raise