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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 © 2009-2014 Teddy Hogeborn
7
 
# Copyright © 2009-2014 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
40
43
 
41
44
from dbus.mainloop.glib import DBusGMainLoop
42
 
try:
43
 
    import gobject
44
 
except ImportError:
45
 
    from gi.repository import GObject as gobject
 
45
from gi.repository import GLib
46
46
 
47
47
import dbus
48
48
 
49
 
import locale
50
 
 
51
49
if sys.version_info.major == 2:
 
50
    __metaclass__ = type
52
51
    str = unicode
53
 
 
54
 
locale.setlocale(locale.LC_ALL, '')
55
 
 
56
 
import logging
57
 
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)
58
68
 
59
69
# Some useful constants
60
 
domain = 'se.recompile'
61
 
server_interface = domain + '.Mandos'
62
 
client_interface = domain + '.Mandos.Client'
63
 
version = "1.6.8"
 
70
domain = "se.recompile"
 
71
server_interface = domain + ".Mandos"
 
72
client_interface = domain + ".Mandos.Client"
 
73
version = "1.8.17"
 
74
 
 
75
try:
 
76
    dbus.OBJECT_MANAGER_IFACE
 
77
except AttributeError:
 
78
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
79
 
64
80
 
65
81
def isoformat_to_datetime(iso):
66
82
    "Parse an ISO 8601 date string to a datetime.datetime()"
75
91
                             int(day),
76
92
                             int(hour),
77
93
                             int(minute),
78
 
                             int(second),           # Whole seconds
79
 
                             int(fraction*1000000)) # Microseconds
80
 
 
81
 
class MandosClientPropertyCache(object):
 
94
                             int(second),            # Whole seconds
 
95
                             int(fraction*1000000))  # Microseconds
 
96
 
 
97
 
 
98
class MandosClientPropertyCache:
82
99
    """This wraps a Mandos Client D-Bus proxy object, caches the
83
100
    properties and calls a hook function when any of them are
84
101
    changed.
85
102
    """
86
103
    def __init__(self, proxy_object=None, properties=None, **kwargs):
87
 
        self.proxy = proxy_object # Mandos Client proxy object
 
104
        self.proxy = proxy_object  # Mandos Client proxy object
88
105
        self.properties = dict() if properties is None else properties
89
106
        self.property_changed_match = (
90
107
            self.proxy.connect_to_signal("PropertiesChanged",
91
108
                                         self.properties_changed,
92
109
                                         dbus.PROPERTIES_IFACE,
93
110
                                         byte_arrays=True))
94
 
        
 
111
 
95
112
        if properties is None:
96
 
            self.properties.update(
97
 
                self.proxy.GetAll(client_interface,
98
 
                                  dbus_interface
99
 
                                  = dbus.PROPERTIES_IFACE))
100
 
        
 
113
            self.properties.update(self.proxy.GetAll(
 
114
                client_interface,
 
115
                dbus_interface=dbus.PROPERTIES_IFACE))
 
116
 
101
117
        super(MandosClientPropertyCache, self).__init__(**kwargs)
102
 
    
 
118
 
103
119
    def properties_changed(self, interface, properties, invalidated):
104
120
        """This is called whenever we get a PropertiesChanged signal
105
121
        It updates the changed properties in the "properties" dict.
106
122
        """
107
123
        # Update properties dict with new value
108
 
        self.properties.update(properties)
109
 
    
 
124
        if interface == client_interface:
 
125
            self.properties.update(properties)
 
126
 
110
127
    def delete(self):
111
128
        self.property_changed_match.remove()
112
129
 
113
130
 
114
 
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
131
class MandosClientWidget(MandosClientPropertyCache, urwid.Widget):
115
132
    """A Mandos Client which is visible on the screen.
116
133
    """
117
 
    
 
134
 
 
135
    _sizing = frozenset(["flow"])
 
136
 
118
137
    def __init__(self, server_proxy_object=None, update_hook=None,
119
 
                 delete_hook=None, logger=None, **kwargs):
 
138
                 delete_hook=None, **kwargs):
120
139
        # Called on update
121
140
        self.update_hook = update_hook
122
141
        # Called on delete
123
142
        self.delete_hook = delete_hook
124
143
        # Mandos Server proxy object
125
144
        self.server_proxy_object = server_proxy_object
126
 
        # Logger
127
 
        self.logger = logger
128
 
        
 
145
 
129
146
        self._update_timer_callback_tag = None
130
 
        
 
147
 
131
148
        # The widget shown normally
132
149
        self._text_widget = urwid.Text("")
133
150
        # The widget shown when we have focus
135
152
        super(MandosClientWidget, self).__init__(**kwargs)
136
153
        self.update()
137
154
        self.opened = False
138
 
        
 
155
 
139
156
        self.match_objects = (
140
157
            self.proxy.connect_to_signal("CheckerCompleted",
141
158
                                         self.checker_completed,
157
174
                                         self.rejected,
158
175
                                         client_interface,
159
176
                                         byte_arrays=True))
160
 
        self.logger('Created client {}'
161
 
                    .format(self.properties["Name"]), level=0)
162
 
    
 
177
        log.debug("Created client %s", self.properties["Name"])
 
178
 
163
179
    def using_timer(self, flag):
164
180
        """Call this method with True or False when timer should be
165
181
        activated or deactivated.
166
182
        """
167
183
        if flag and self._update_timer_callback_tag is None:
168
184
            # Will update the shown timer value every second
169
 
            self._update_timer_callback_tag = (gobject.timeout_add
170
 
                                               (1000,
171
 
                                                self.update_timer))
 
185
            self._update_timer_callback_tag = (
 
186
                GLib.timeout_add(1000,
 
187
                                 glib_safely(self.update_timer)))
172
188
        elif not (flag or self._update_timer_callback_tag is None):
173
 
            gobject.source_remove(self._update_timer_callback_tag)
 
189
            GLib.source_remove(self._update_timer_callback_tag)
174
190
            self._update_timer_callback_tag = None
175
 
    
 
191
 
176
192
    def checker_completed(self, exitstatus, condition, command):
177
193
        if exitstatus == 0:
178
 
            self.logger('Checker for client {} (command "{}")'
179
 
                        ' succeeded'.format(self.properties["Name"],
180
 
                                            command), level=0)
 
194
            log.debug('Checker for client %s (command "%s")'
 
195
                      " succeeded", self.properties["Name"], command)
181
196
            self.update()
182
197
            return
183
198
        # Checker failed
184
199
        if os.WIFEXITED(condition):
185
 
            self.logger('Checker for client {} (command "{}") failed'
186
 
                        ' with exit code {}'
187
 
                        .format(self.properties["Name"], command,
188
 
                                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))
189
203
        elif os.WIFSIGNALED(condition):
190
 
            self.logger('Checker for client {} (command "{}") was'
191
 
                        ' killed by signal {}'
192
 
                        .format(self.properties["Name"], command,
193
 
                                os.WTERMSIG(condition)))
194
 
        elif os.WCOREDUMP(condition):
195
 
            self.logger('Checker for client {} (command "{}") dumped'
196
 
                        ' core'.format(self.properties["Name"],
197
 
                                       command))
198
 
        else:
199
 
            self.logger('Checker for client {} completed'
200
 
                        ' mysteriously'
201
 
                        .format(self.properties["Name"]))
 
204
            log.info('Checker for client %s (command "%s") was'
 
205
                     " killed by signal %d", self.properties["Name"],
 
206
                     command, os.WTERMSIG(condition))
202
207
        self.update()
203
 
    
 
208
 
204
209
    def checker_started(self, command):
205
210
        """Server signals that a checker started."""
206
 
        self.logger('Client {} started checker "{}"'
207
 
                    .format(self.properties["Name"],
208
 
                            command), level=0)
209
 
    
 
211
        log.debug('Client %s started checker "%s"',
 
212
                  self.properties["Name"], command)
 
213
 
210
214
    def got_secret(self):
211
 
        self.logger('Client {} received its secret'
212
 
                    .format(self.properties["Name"]))
213
 
    
 
215
        log.info("Client %s received its secret",
 
216
                 self.properties["Name"])
 
217
 
214
218
    def need_approval(self, timeout, default):
215
219
        if not default:
216
 
            message = 'Client {} needs approval within {} seconds'
 
220
            message = "Client %s needs approval within %f seconds"
217
221
        else:
218
 
            message = 'Client {} will get its secret in {} seconds'
219
 
        self.logger(message.format(self.properties["Name"],
220
 
                                   timeout/1000))
221
 
    
 
222
            message = "Client %s will get its secret in %f seconds"
 
223
        log.info(message, self.properties["Name"], timeout/1000)
 
224
 
222
225
    def rejected(self, reason):
223
 
        self.logger('Client {} was rejected; reason: {}'
224
 
                    .format(self.properties["Name"], reason))
225
 
    
 
226
        log.info("Client %s was rejected; reason: %s",
 
227
                 self.properties["Name"], reason)
 
228
 
226
229
    def selectable(self):
227
230
        """Make this a "selectable" widget.
228
 
        This overrides the method from urwid.FlowWidget."""
 
231
        This overrides the method from urwid.Widget."""
229
232
        return True
230
 
    
 
233
 
231
234
    def rows(self, maxcolrow, focus=False):
232
235
        """How many rows this widget will occupy might depend on
233
236
        whether we have focus or not.
234
 
        This overrides the method from urwid.FlowWidget"""
 
237
        This overrides the method from urwid.Widget"""
235
238
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
236
 
    
 
239
 
237
240
    def current_widget(self, focus=False):
238
241
        if focus or self.opened:
239
242
            return self._focus_widget
240
243
        return self._widget
241
 
    
 
244
 
242
245
    def update(self):
243
246
        "Called when what is visible on the screen should be updated."
244
247
        # How to add standout mode to a style
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
        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
 
253
256
        # Rebuild focus and non-focus widgets using current properties
254
 
        
 
257
 
255
258
        # Base part of a client. Name!
256
 
        base = '{name}: '.format(name=self.properties["Name"])
 
259
        base = "{name}: ".format(name=self.properties["Name"])
257
260
        if not self.properties["Enabled"]:
258
261
            message = "DISABLED"
259
262
            self.using_timer(False)
260
263
        elif self.properties["ApprovalPending"]:
261
 
            timeout = datetime.timedelta(milliseconds
262
 
                                         = self.properties
263
 
                                         ["ApprovalDelay"])
 
264
            timeout = datetime.timedelta(
 
265
                milliseconds=self.properties["ApprovalDelay"])
264
266
            last_approval_request = isoformat_to_datetime(
265
267
                self.properties["LastApprovalRequest"])
266
268
            if last_approval_request is not None:
282
284
                timer = datetime.timedelta(0)
283
285
            else:
284
286
                expires = (datetime.datetime.strptime
285
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
287
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
286
288
                timer = max(expires - datetime.datetime.utcnow(),
287
289
                            datetime.timedelta())
288
 
            message = ('A checker has failed! Time until client'
289
 
                       ' gets disabled: {}'
 
290
            message = ("A checker has failed! Time until client"
 
291
                       " gets disabled: {}"
290
292
                       .format(str(timer).rsplit(".", 1)[0]))
291
293
            self.using_timer(True)
292
294
        else:
293
295
            message = "enabled"
294
296
            self.using_timer(False)
295
297
        self._text = "{}{}".format(base, message)
296
 
        
 
298
 
297
299
        if not urwid.supports_unicode():
298
300
            self._text = self._text.encode("ascii", "replace")
299
301
        textlist = [("normal", self._text)]
309
311
        # Run update hook, if any
310
312
        if self.update_hook is not None:
311
313
            self.update_hook()
312
 
    
 
314
 
313
315
    def update_timer(self):
314
 
        """called by gobject. Will indefinitely loop until
315
 
        gobject.source_remove() on tag is called"""
 
316
        """called by GLib. Will indefinitely loop until
 
317
        GLib.source_remove() on tag is called
 
318
        """
316
319
        self.update()
317
320
        return True             # Keep calling this
318
 
    
 
321
 
319
322
    def delete(self, **kwargs):
320
323
        if self._update_timer_callback_tag is not None:
321
 
            gobject.source_remove(self._update_timer_callback_tag)
 
324
            GLib.source_remove(self._update_timer_callback_tag)
322
325
            self._update_timer_callback_tag = None
323
326
        for match in self.match_objects:
324
327
            match.remove()
326
329
        if self.delete_hook is not None:
327
330
            self.delete_hook(self)
328
331
        return super(MandosClientWidget, self).delete(**kwargs)
329
 
    
 
332
 
330
333
    def render(self, maxcolrow, focus=False):
331
334
        """Render differently if we have focus.
332
 
        This overrides the method from urwid.FlowWidget"""
 
335
        This overrides the method from urwid.Widget"""
333
336
        return self.current_widget(focus).render(maxcolrow,
334
337
                                                 focus=focus)
335
 
    
 
338
 
336
339
    def keypress(self, maxcolrow, key):
337
340
        """Handle keys.
338
 
        This overrides the method from urwid.FlowWidget"""
 
341
        This overrides the method from urwid.Widget"""
339
342
        if key == "+":
340
 
            self.proxy.Enable(dbus_interface = client_interface,
341
 
                              ignore_reply=True)
 
343
            self.proxy.Set(client_interface, "Enabled",
 
344
                           dbus.Boolean(True), ignore_reply=True,
 
345
                           dbus_interface=dbus.PROPERTIES_IFACE)
342
346
        elif key == "-":
343
 
            self.proxy.Disable(dbus_interface = client_interface,
344
 
                               ignore_reply=True)
 
347
            self.proxy.Set(client_interface, "Enabled", False,
 
348
                           ignore_reply=True,
 
349
                           dbus_interface=dbus.PROPERTIES_IFACE)
345
350
        elif key == "a":
346
351
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
347
 
                               dbus_interface = client_interface,
 
352
                               dbus_interface=client_interface,
348
353
                               ignore_reply=True)
349
354
        elif key == "d":
350
355
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
351
 
                                  dbus_interface = client_interface,
 
356
                               dbus_interface=client_interface,
352
357
                               ignore_reply=True)
353
358
        elif key == "R" or key == "_" or key == "ctrl k":
354
359
            self.server_proxy_object.RemoveClient(self.proxy
355
360
                                                  .object_path,
356
361
                                                  ignore_reply=True)
357
362
        elif key == "s":
358
 
            self.proxy.StartChecker(dbus_interface = client_interface,
359
 
                                    ignore_reply=True)
 
363
            self.proxy.Set(client_interface, "CheckerRunning",
 
364
                           dbus.Boolean(True), ignore_reply=True,
 
365
                           dbus_interface=dbus.PROPERTIES_IFACE)
360
366
        elif key == "S":
361
 
            self.proxy.StopChecker(dbus_interface = client_interface,
362
 
                                   ignore_reply=True)
 
367
            self.proxy.Set(client_interface, "CheckerRunning",
 
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'
466
 
        self.main_loop = gobject.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
 
    
 
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"
 
482
        self.main_loop = GLib.MainLoop()
 
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
 
    
528
 
    def find_and_remove_client(self, path, name):
 
527
        log.debug("Wrap mode: %s", self.log_wrap)
 
528
 
 
529
    def find_and_remove_client(self, path, interfaces):
529
530
        """Find a client by its object path and remove it.
530
 
        
531
 
        This is connected to the ClientRemoved signal from the
 
531
 
 
532
        This is connected to the InterfacesRemoved signal from the
532
533
        Mandos server object."""
 
534
        if client_interface not in interfaces:
 
535
            # Not a Mandos client object; ignore
 
536
            return
533
537
        try:
534
538
            client = self.clients_dict[path]
535
539
        except KeyError:
536
540
            # not found?
537
 
            self.log_message("Unknown client {!r} ({!r}) removed"
538
 
                             .format(name, path))
 
541
            log.warning("Unknown client %s removed", path)
539
542
            return
540
543
        client.delete()
541
 
    
542
 
    def add_new_client(self, path):
 
544
 
 
545
    def add_new_client(self, path, ifs_and_props):
 
546
        """Find a client by its object path and remove it.
 
547
 
 
548
        This is connected to the InterfacesAdded signal from the
 
549
        Mandos server object.
 
550
        """
 
551
        if client_interface not in ifs_and_props:
 
552
            # Not a Mandos client object; ignore
 
553
            return
543
554
        client_proxy_object = self.bus.get_object(self.busname, path)
544
 
        self.add_client(MandosClientWidget(server_proxy_object
545
 
                                           =self.mandos_serv,
546
 
                                           proxy_object
547
 
                                           =client_proxy_object,
548
 
                                           update_hook
549
 
                                           =self.refresh,
550
 
                                           delete_hook
551
 
                                           =self.remove_client,
552
 
                                           logger
553
 
                                           =self.log_message),
 
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])),
554
561
                        path=path)
555
 
    
 
562
 
556
563
    def add_client(self, client, path=None):
557
564
        self.clients.append(client)
558
565
        if path is None:
560
567
        self.clients_dict[path] = client
561
568
        self.clients.sort(key=lambda c: c.properties["Name"])
562
569
        self.refresh()
563
 
    
 
570
 
564
571
    def remove_client(self, client, path=None):
565
572
        self.clients.remove(client)
566
573
        if path is None:
567
574
            path = client.proxy.object_path
568
575
        del self.clients_dict[path]
569
576
        self.refresh()
570
 
    
 
577
 
571
578
    def refresh(self):
572
579
        """Redraw the screen"""
573
580
        canvas = self.topwidget.render(self.size, focus=True)
574
581
        self.screen.draw_screen(self.size, canvas)
575
 
    
 
582
 
576
583
    def run(self):
577
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")
578
590
        self.bus = dbus.SystemBus()
579
591
        mandos_dbus_objc = self.bus.get_object(
580
592
            self.busname, "/", follow_name_owner_changes=True)
581
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
582
 
                                          dbus_interface
583
 
                                          = server_interface)
 
593
        self.mandos_serv = dbus.Interface(
 
594
            mandos_dbus_objc, dbus_interface=server_interface)
584
595
        try:
585
596
            mandos_clients = (self.mandos_serv
586
597
                              .GetAllClientsWithProperties())
587
598
            if not mandos_clients:
588
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
599
                log.warning("Note: Server has no clients.")
589
600
        except dbus.exceptions.DBusException:
590
 
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
601
            log.warning("Note: No Mandos server running.")
591
602
            mandos_clients = dbus.Dictionary()
592
 
        
 
603
 
593
604
        (self.mandos_serv
594
 
         .connect_to_signal("ClientRemoved",
 
605
         .connect_to_signal("InterfacesRemoved",
595
606
                            self.find_and_remove_client,
596
 
                            dbus_interface=server_interface,
 
607
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
597
608
                            byte_arrays=True))
598
609
        (self.mandos_serv
599
 
         .connect_to_signal("ClientAdded",
 
610
         .connect_to_signal("InterfacesAdded",
600
611
                            self.add_new_client,
601
 
                            dbus_interface=server_interface,
 
612
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
602
613
                            byte_arrays=True))
603
614
        (self.mandos_serv
604
615
         .connect_to_signal("ClientNotFound",
608
619
        for path, client in mandos_clients.items():
609
620
            client_proxy_object = self.bus.get_object(self.busname,
610
621
                                                      path)
611
 
            self.add_client(MandosClientWidget(server_proxy_object
612
 
                                               =self.mandos_serv,
613
 
                                               proxy_object
614
 
                                               =client_proxy_object,
615
 
                                               properties=client,
616
 
                                               update_hook
617
 
                                               =self.refresh,
618
 
                                               delete_hook
619
 
                                               =self.remove_client,
620
 
                                               logger
621
 
                                               =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),
622
628
                            path=path)
623
 
        
 
629
 
624
630
        self.refresh()
625
 
        self._input_callback_tag = (gobject.io_add_watch
626
 
                                    (sys.stdin.fileno(),
627
 
                                     gobject.IO_IN,
628
 
                                     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)))
629
636
        self.main_loop.run()
630
637
        # Main loop has finished, we should close everything now
631
 
        gobject.source_remove(self._input_callback_tag)
632
 
        self.screen.stop()
633
 
    
 
638
        GLib.source_remove(self._input_callback_tag)
 
639
        with warnings.catch_warnings():
 
640
            warnings.simplefilter("ignore", BytesWarning)
 
641
            self.screen.stop()
 
642
 
634
643
    def stop(self):
635
644
        self.main_loop.quit()
636
 
    
 
645
        log.removeHandler(self.loghandler)
 
646
        log.propagate = self.orig_log_propagate
 
647
 
637
648
    def process_input(self, source, condition):
638
649
        keys = self.screen.get_input()
639
 
        translations = { "ctrl n": "down",      # Emacs
640
 
                         "ctrl p": "up",        # Emacs
641
 
                         "ctrl v": "page down", # Emacs
642
 
                         "meta v": "page up",   # Emacs
643
 
                         " ": "page down",      # less
644
 
                         "f": "page down",      # less
645
 
                         "b": "page up",        # less
646
 
                         "j": "down",           # vi
647
 
                         "k": "up",             # vi
648
 
                         }
 
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
                        }
649
660
        for key in keys:
650
661
            try:
651
662
                key = translations[key]
652
663
            except KeyError:    # :-)
653
664
                pass
654
 
            
 
665
 
655
666
            if key == "q" or key == "Q":
656
667
                self.stop()
657
668
                break
671
682
                if not self.log_visible:
672
683
                    self.log_visible = True
673
684
                    self.rebuild()
674
 
                self.log_message_raw(("bold",
675
 
                                      "  ".
676
 
                                      join(("q: Quit",
677
 
                                            "?: Help",
678
 
                                            "l: Log window toggle",
679
 
                                            "TAB: Switch window",
680
 
                                            "w: Wrap (log lines)",
681
 
                                            "v: Toggle verbose log",
682
 
                                            ))))
683
 
                self.log_message_raw(("bold",
684
 
                                      "  "
685
 
                                      .join(("Clients:",
686
 
                                             "+: Enable",
687
 
                                             "-: Disable",
688
 
                                             "R: Remove",
689
 
                                             "s: Start new checker",
690
 
                                             "S: Stop checker",
691
 
                                             "C: Checker OK",
692
 
                                             "a: Approve",
693
 
                                             "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
                                   ))))
694
704
                self.refresh()
695
705
            elif key == "tab":
696
706
                if self.topwidget.get_focus() is self.logbox:
699
709
                    self.topwidget.set_focus(self.logbox)
700
710
                self.refresh()
701
711
            elif key == "v":
702
 
                if self.log_level == 0:
703
 
                    self.log_level = 1
704
 
                    self.log_message("Verbose mode: Off")
 
712
                if log.level < logging.INFO:
 
713
                    log.setLevel(logging.INFO)
 
714
                    log.info("Verbose mode: Off")
705
715
                else:
706
 
                    self.log_level = 0
707
 
                    self.log_message("Verbose mode: On")
708
 
            #elif (key == "end" or key == "meta >" or key == "G"
709
 
            #      or key == ">"):
710
 
            #    pass            # xxx end-of-buffer
711
 
            #elif (key == "home" or key == "meta <" or key == "g"
712
 
            #      or key == "<"):
713
 
            #    pass            # xxx beginning-of-buffer
714
 
            #elif key == "ctrl e" or key == "$":
715
 
            #    pass            # xxx move-end-of-line
716
 
            #elif key == "ctrl a" or key == "^":
717
 
            #    pass            # xxx move-beginning-of-line
718
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
719
 
            #    pass            # xxx left
720
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
721
 
            #    pass            # xxx right
722
 
            #elif key == "a":
723
 
            #    pass            # scroll up log
724
 
            #elif key == "z":
725
 
            #    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
726
736
            elif self.topwidget.selectable():
727
737
                self.topwidget.keypress(self.size, key)
728
738
                self.refresh()
729
739
        return True
730
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
 
731
755
ui = UserInterface()
732
756
try:
733
757
    ui.run()
734
758
except KeyboardInterrupt:
735
 
    ui.screen.stop()
736
 
except Exception as e:
737
 
    ui.log_message(str(e))
738
 
    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()
739
766
    raise