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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
 
if sys.version_info[0] == 2:
 
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 = "1.6.5"
 
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
 
            self.proxy.connect_to_signal("PropertyChanged",
91
 
                                         self._property_changed,
92
 
                                         client_interface,
 
107
            self.proxy.connect_to_signal("PropertiesChanged",
 
108
                                         self.properties_changed,
 
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
 
    
103
 
    def _property_changed(self, property, value):
104
 
        """Helper which takes positional arguments"""
105
 
        return self.property_changed(property=property, value=value)
106
 
    
107
 
    def property_changed(self, property=None, value=None):
108
 
        """This is called whenever we get a PropertyChanged signal
109
 
        It updates the changed property in the "properties" dict.
 
118
 
 
119
    def properties_changed(self, interface, properties, invalidated):
 
120
        """This is called whenever we get a PropertiesChanged signal
 
121
        It updates the changed properties in the "properties" dict.
110
122
        """
111
123
        # Update properties dict with new value
112
 
        self.properties[property] = value
113
 
    
 
124
        if interface == client_interface:
 
125
            self.properties.update(properties)
 
126
 
114
127
    def delete(self):
115
128
        self.property_changed_match.remove()
116
129
 
117
130
 
118
 
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
131
class MandosClientWidget(MandosClientPropertyCache, urwid.Widget):
119
132
    """A Mandos Client which is visible on the screen.
120
133
    """
121
 
    
 
134
 
 
135
    _sizing = frozenset(["flow"])
 
136
 
122
137
    def __init__(self, server_proxy_object=None, update_hook=None,
123
 
                 delete_hook=None, logger=None, **kwargs):
 
138
                 delete_hook=None, **kwargs):
124
139
        # Called on update
125
140
        self.update_hook = update_hook
126
141
        # Called on delete
127
142
        self.delete_hook = delete_hook
128
143
        # Mandos Server proxy object
129
144
        self.server_proxy_object = server_proxy_object
130
 
        # Logger
131
 
        self.logger = logger
132
 
        
 
145
 
133
146
        self._update_timer_callback_tag = None
134
 
        
 
147
 
135
148
        # The widget shown normally
136
149
        self._text_widget = urwid.Text("")
137
150
        # The widget shown when we have focus
139
152
        super(MandosClientWidget, self).__init__(**kwargs)
140
153
        self.update()
141
154
        self.opened = False
142
 
        
 
155
 
143
156
        self.match_objects = (
144
157
            self.proxy.connect_to_signal("CheckerCompleted",
145
158
                                         self.checker_completed,
161
174
                                         self.rejected,
162
175
                                         client_interface,
163
176
                                         byte_arrays=True))
164
 
        #self.logger('Created client {0}'
165
 
        #            .format(self.properties["Name"]))
166
 
    
 
177
        log.debug("Created client %s", self.properties["Name"])
 
178
 
167
179
    def using_timer(self, flag):
168
180
        """Call this method with True or False when timer should be
169
181
        activated or deactivated.
170
182
        """
171
183
        if flag and self._update_timer_callback_tag is None:
172
184
            # Will update the shown timer value every second
173
 
            self._update_timer_callback_tag = (gobject.timeout_add
174
 
                                               (1000,
175
 
                                                self.update_timer))
 
185
            self._update_timer_callback_tag = (
 
186
                GLib.timeout_add(1000,
 
187
                                 glib_safely(self.update_timer)))
176
188
        elif not (flag or self._update_timer_callback_tag is None):
177
 
            gobject.source_remove(self._update_timer_callback_tag)
 
189
            GLib.source_remove(self._update_timer_callback_tag)
178
190
            self._update_timer_callback_tag = None
179
 
    
 
191
 
180
192
    def checker_completed(self, exitstatus, condition, command):
181
193
        if exitstatus == 0:
 
194
            log.debug('Checker for client %s (command "%s")'
 
195
                      " succeeded", self.properties["Name"], command)
182
196
            self.update()
183
197
            return
184
198
        # Checker failed
185
199
        if os.WIFEXITED(condition):
186
 
            self.logger('Checker for client {0} (command "{1}")'
187
 
                        ' failed with exit code {2}'
188
 
                        .format(self.properties["Name"], command,
189
 
                                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))
190
203
        elif os.WIFSIGNALED(condition):
191
 
            self.logger('Checker for client {0} (command "{1}") was'
192
 
                        ' killed by signal {2}'
193
 
                        .format(self.properties["Name"], command,
194
 
                                os.WTERMSIG(condition)))
195
 
        elif os.WCOREDUMP(condition):
196
 
            self.logger('Checker for client {0} (command "{1}")'
197
 
                        ' dumped core'
198
 
                        .format(self.properties["Name"], command))
199
 
        else:
200
 
            self.logger('Checker for client {0} completed'
201
 
                        ' mysteriously'
202
 
                        .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))
203
207
        self.update()
204
 
    
 
208
 
205
209
    def checker_started(self, command):
206
 
        """Server signals that a checker started. This could be useful
207
 
           to log in the future. """
208
 
        #self.logger('Client {0} started checker "{1}"'
209
 
        #            .format(self.properties["Name"],
210
 
        #                    str(command)))
211
 
        pass
212
 
    
 
210
        """Server signals that a checker started."""
 
211
        log.debug('Client %s started checker "%s"',
 
212
                  self.properties["Name"], command)
 
213
 
213
214
    def got_secret(self):
214
 
        self.logger('Client {0} received its secret'
215
 
                    .format(self.properties["Name"]))
216
 
    
 
215
        log.info("Client %s received its secret",
 
216
                 self.properties["Name"])
 
217
 
217
218
    def need_approval(self, timeout, default):
218
219
        if not default:
219
 
            message = 'Client {0} needs approval within {1} seconds'
 
220
            message = "Client %s needs approval within %f seconds"
220
221
        else:
221
 
            message = 'Client {0} will get its secret in {1} seconds'
222
 
        self.logger(message.format(self.properties["Name"],
223
 
                                   timeout/1000))
224
 
    
 
222
            message = "Client %s will get its secret in %f seconds"
 
223
        log.info(message, self.properties["Name"], timeout/1000)
 
224
 
225
225
    def rejected(self, reason):
226
 
        self.logger('Client {0} was rejected; reason: {1}'
227
 
                    .format(self.properties["Name"], reason))
228
 
    
 
226
        log.info("Client %s was rejected; reason: %s",
 
227
                 self.properties["Name"], reason)
 
228
 
229
229
    def selectable(self):
230
230
        """Make this a "selectable" widget.
231
 
        This overrides the method from urwid.FlowWidget."""
 
231
        This overrides the method from urwid.Widget."""
232
232
        return True
233
 
    
 
233
 
234
234
    def rows(self, maxcolrow, focus=False):
235
235
        """How many rows this widget will occupy might depend on
236
236
        whether we have focus or not.
237
 
        This overrides the method from urwid.FlowWidget"""
 
237
        This overrides the method from urwid.Widget"""
238
238
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
239
 
    
 
239
 
240
240
    def current_widget(self, focus=False):
241
241
        if focus or self.opened:
242
242
            return self._focus_widget
243
243
        return self._widget
244
 
    
 
244
 
245
245
    def update(self):
246
246
        "Called when what is visible on the screen should be updated."
247
247
        # How to add standout mode to a style
248
 
        with_standout = { "normal": "standout",
249
 
                          "bold": "bold-standout",
250
 
                          "underline-blink":
251
 
                              "underline-blink-standout",
252
 
                          "bold-underline-blink":
253
 
                              "bold-underline-blink-standout",
254
 
                          }
255
 
        
 
248
        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
 
256
256
        # Rebuild focus and non-focus widgets using current properties
257
 
        
 
257
 
258
258
        # Base part of a client. Name!
259
 
        base = '{name}: '.format(name=self.properties["Name"])
 
259
        base = "{name}: ".format(name=self.properties["Name"])
260
260
        if not self.properties["Enabled"]:
261
261
            message = "DISABLED"
262
262
            self.using_timer(False)
263
263
        elif self.properties["ApprovalPending"]:
264
 
            timeout = datetime.timedelta(milliseconds
265
 
                                         = self.properties
266
 
                                         ["ApprovalDelay"])
 
264
            timeout = datetime.timedelta(
 
265
                milliseconds=self.properties["ApprovalDelay"])
267
266
            last_approval_request = isoformat_to_datetime(
268
267
                self.properties["LastApprovalRequest"])
269
268
            if last_approval_request is not None:
273
272
            else:
274
273
                timer = datetime.timedelta()
275
274
            if self.properties["ApprovedByDefault"]:
276
 
                message = "Approval in {0}. (d)eny?"
 
275
                message = "Approval in {}. (d)eny?"
277
276
            else:
278
 
                message = "Denial in {0}. (a)pprove?"
 
277
                message = "Denial in {}. (a)pprove?"
279
278
            message = message.format(str(timer).rsplit(".", 1)[0])
280
279
            self.using_timer(True)
281
280
        elif self.properties["LastCheckerStatus"] != 0:
285
284
                timer = datetime.timedelta(0)
286
285
            else:
287
286
                expires = (datetime.datetime.strptime
288
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
287
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
289
288
                timer = max(expires - datetime.datetime.utcnow(),
290
289
                            datetime.timedelta())
291
 
            message = ('A checker has failed! Time until client'
292
 
                       ' gets disabled: {0}'
 
290
            message = ("A checker has failed! Time until client"
 
291
                       " gets disabled: {}"
293
292
                       .format(str(timer).rsplit(".", 1)[0]))
294
293
            self.using_timer(True)
295
294
        else:
296
295
            message = "enabled"
297
296
            self.using_timer(False)
298
 
        self._text = "{0}{1}".format(base, message)
299
 
        
 
297
        self._text = "{}{}".format(base, message)
 
298
 
300
299
        if not urwid.supports_unicode():
301
300
            self._text = self._text.encode("ascii", "replace")
302
301
        textlist = [("normal", self._text)]
312
311
        # Run update hook, if any
313
312
        if self.update_hook is not None:
314
313
            self.update_hook()
315
 
    
 
314
 
316
315
    def update_timer(self):
317
 
        """called by gobject. Will indefinitely loop until
318
 
        gobject.source_remove() on tag is called"""
 
316
        """called by GLib. Will indefinitely loop until
 
317
        GLib.source_remove() on tag is called
 
318
        """
319
319
        self.update()
320
320
        return True             # Keep calling this
321
 
    
 
321
 
322
322
    def delete(self, **kwargs):
323
323
        if self._update_timer_callback_tag is not None:
324
 
            gobject.source_remove(self._update_timer_callback_tag)
 
324
            GLib.source_remove(self._update_timer_callback_tag)
325
325
            self._update_timer_callback_tag = None
326
326
        for match in self.match_objects:
327
327
            match.remove()
329
329
        if self.delete_hook is not None:
330
330
            self.delete_hook(self)
331
331
        return super(MandosClientWidget, self).delete(**kwargs)
332
 
    
 
332
 
333
333
    def render(self, maxcolrow, focus=False):
334
334
        """Render differently if we have focus.
335
 
        This overrides the method from urwid.FlowWidget"""
 
335
        This overrides the method from urwid.Widget"""
336
336
        return self.current_widget(focus).render(maxcolrow,
337
337
                                                 focus=focus)
338
 
    
 
338
 
339
339
    def keypress(self, maxcolrow, key):
340
340
        """Handle keys.
341
 
        This overrides the method from urwid.FlowWidget"""
 
341
        This overrides the method from urwid.Widget"""
342
342
        if key == "+":
343
 
            self.proxy.Enable(dbus_interface = client_interface,
344
 
                              ignore_reply=True)
 
343
            self.proxy.Set(client_interface, "Enabled",
 
344
                           dbus.Boolean(True), ignore_reply=True,
 
345
                           dbus_interface=dbus.PROPERTIES_IFACE)
345
346
        elif key == "-":
346
 
            self.proxy.Disable(dbus_interface = client_interface,
347
 
                               ignore_reply=True)
 
347
            self.proxy.Set(client_interface, "Enabled", False,
 
348
                           ignore_reply=True,
 
349
                           dbus_interface=dbus.PROPERTIES_IFACE)
348
350
        elif key == "a":
349
351
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
350
 
                               dbus_interface = client_interface,
 
352
                               dbus_interface=client_interface,
351
353
                               ignore_reply=True)
352
354
        elif key == "d":
353
355
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
354
 
                                  dbus_interface = client_interface,
 
356
                               dbus_interface=client_interface,
355
357
                               ignore_reply=True)
356
358
        elif key == "R" or key == "_" or key == "ctrl k":
357
359
            self.server_proxy_object.RemoveClient(self.proxy
358
360
                                                  .object_path,
359
361
                                                  ignore_reply=True)
360
362
        elif key == "s":
361
 
            self.proxy.StartChecker(dbus_interface = client_interface,
362
 
                                    ignore_reply=True)
 
363
            self.proxy.Set(client_interface, "CheckerRunning",
 
364
                           dbus.Boolean(True), ignore_reply=True,
 
365
                           dbus_interface=dbus.PROPERTIES_IFACE)
363
366
        elif key == "S":
364
 
            self.proxy.StopChecker(dbus_interface = client_interface,
365
 
                                   ignore_reply=True)
 
367
            self.proxy.Set(client_interface, "CheckerRunning",
 
368
                           dbus.Boolean(False), ignore_reply=True,
 
369
                           dbus_interface=dbus.PROPERTIES_IFACE)
366
370
        elif key == "C":
367
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
371
            self.proxy.CheckedOK(dbus_interface=client_interface,
368
372
                                 ignore_reply=True)
369
373
        # xxx
370
374
#         elif key == "p" or key == "=":
375
379
#             self.open()
376
380
        else:
377
381
            return key
378
 
    
379
 
    def property_changed(self, property=None, **kwargs):
380
 
        """Call self.update() if old value is not new value.
 
382
 
 
383
    def properties_changed(self, interface, properties, invalidated):
 
384
        """Call self.update() if any properties changed.
381
385
        This overrides the method from MandosClientPropertyCache"""
382
 
        property_name = str(property)
383
 
        old_value = self.properties.get(property_name)
384
 
        super(MandosClientWidget, self).property_changed(
385
 
            property=property, **kwargs)
386
 
        if self.properties.get(property_name) != old_value:
 
386
        old_values = {key: self.properties.get(key)
 
387
                      for key in properties.keys()}
 
388
        super(MandosClientWidget, self).properties_changed(
 
389
            interface, properties, invalidated)
 
390
        if any(old_values[key] != self.properties.get(key)
 
391
               for key in old_values):
387
392
            self.update()
388
393
 
389
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
 
390
405
class ConstrainedListBox(urwid.ListBox):
391
406
    """Like a normal urwid.ListBox, but will consume all "up" or
392
407
    "down" key presses, thus not allowing any containing widgets to
393
408
    use them as an excuse to shift focus away from this widget.
394
409
    """
395
410
    def keypress(self, *args, **kwargs):
396
 
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
411
        ret = (super(ConstrainedListBox, self)
 
412
               .keypress(*args, **kwargs))
397
413
        if ret in ("up", "down"):
398
414
            return
399
415
        return ret
400
416
 
401
417
 
402
 
class UserInterface(object):
 
418
class UserInterface:
403
419
    """This is the entire user interface - the whole screen
404
420
    with boxes, lists of client widgets, etc.
405
421
    """
406
422
    def __init__(self, max_log_length=1000):
407
423
        DBusGMainLoop(set_as_default=True)
408
 
        
 
424
 
409
425
        self.screen = urwid.curses_display.Screen()
410
 
        
 
426
 
411
427
        self.screen.register_palette((
412
428
                ("normal",
413
429
                 "default", "default", None),
418
434
                ("standout",
419
435
                 "standout", "default", "standout"),
420
436
                ("bold-underline-blink",
421
 
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
437
                 "bold,underline,blink", "default",
 
438
                 "bold,underline,blink"),
422
439
                ("bold-standout",
423
440
                 "bold,standout", "default", "bold,standout"),
424
441
                ("underline-blink-standout",
428
445
                 "bold,underline,blink,standout", "default",
429
446
                 "bold,underline,blink,standout"),
430
447
                ))
431
 
        
 
448
 
432
449
        if urwid.supports_unicode():
433
 
            self.divider = "─" # \u2500
434
 
            #self.divider = "━" # \u2501
 
450
            self.divider = "─"  # \u2500
435
451
        else:
436
 
            #self.divider = "-" # \u002d
437
 
            self.divider = "_" # \u005f
438
 
        
 
452
            self.divider = "_"  # \u005f
 
453
 
439
454
        self.screen.start()
440
 
        
 
455
 
441
456
        self.size = self.screen.get_cols_rows()
442
 
        
 
457
 
443
458
        self.clients = urwid.SimpleListWalker([])
444
459
        self.clients_dict = {}
445
 
        
 
460
 
446
461
        # We will add Text widgets to this list
447
 
        self.log = []
 
462
        self.log = urwid.SimpleListWalker([])
448
463
        self.max_log_length = max_log_length
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 {0} and fingerprint"
470
 
                         " {1} 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):
490
 
        """Log message formatted with timestamp"""
491
 
        timestamp = datetime.datetime.now().isoformat()
492
 
        self.log_message_raw(timestamp + ": " + message)
493
 
    
494
 
    def log_message_raw(self, markup):
495
 
        """Add a log message to the log buffer."""
 
502
 
 
503
    def add_log_line(self, markup):
496
504
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
497
 
        if (self.max_log_length
498
 
            and len(self.log) > self.max_log_length):
499
 
            del self.log[0:len(self.log)-self.max_log_length-1]
500
 
        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,
501
509
                              coming_from="above")
502
510
        self.refresh()
503
 
    
 
511
 
504
512
    def toggle_log_display(self):
505
513
        """Toggle visibility of the log buffer."""
506
514
        self.log_visible = not self.log_visible
507
515
        self.rebuild()
508
 
        #self.log_message("Log visibility changed to: "
509
 
        #                 + str(self.log_visible))
510
 
    
 
516
        log.debug("Log visibility changed to: %s", self.log_visible)
 
517
 
511
518
    def change_log_display(self):
512
519
        """Change type of log display.
513
520
        Currently, this toggles wrapping of text lines."""
517
524
            self.log_wrap = "clip"
518
525
        for textwidget in self.log:
519
526
            textwidget.set_wrap_mode(self.log_wrap)
520
 
        #self.log_message("Wrap mode: " + self.log_wrap)
521
 
    
522
 
    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):
523
530
        """Find a client by its object path and remove it.
524
 
        
525
 
        This is connected to the ClientRemoved signal from the
 
531
 
 
532
        This is connected to the InterfacesRemoved signal from the
526
533
        Mandos server object."""
 
534
        if client_interface not in interfaces:
 
535
            # Not a Mandos client object; ignore
 
536
            return
527
537
        try:
528
538
            client = self.clients_dict[path]
529
539
        except KeyError:
530
540
            # not found?
531
 
            self.log_message("Unknown client {0!r} ({1!r}) removed"
532
 
                             .format(name, path))
 
541
            log.warning("Unknown client %s removed", path)
533
542
            return
534
543
        client.delete()
535
 
    
536
 
    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
537
554
        client_proxy_object = self.bus.get_object(self.busname, path)
538
 
        self.add_client(MandosClientWidget(server_proxy_object
539
 
                                           =self.mandos_serv,
540
 
                                           proxy_object
541
 
                                           =client_proxy_object,
542
 
                                           update_hook
543
 
                                           =self.refresh,
544
 
                                           delete_hook
545
 
                                           =self.remove_client,
546
 
                                           logger
547
 
                                           =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])),
548
561
                        path=path)
549
 
    
 
562
 
550
563
    def add_client(self, client, path=None):
551
564
        self.clients.append(client)
552
565
        if path is None:
554
567
        self.clients_dict[path] = client
555
568
        self.clients.sort(key=lambda c: c.properties["Name"])
556
569
        self.refresh()
557
 
    
 
570
 
558
571
    def remove_client(self, client, path=None):
559
572
        self.clients.remove(client)
560
573
        if path is None:
561
574
            path = client.proxy.object_path
562
575
        del self.clients_dict[path]
563
576
        self.refresh()
564
 
    
 
577
 
565
578
    def refresh(self):
566
579
        """Redraw the screen"""
567
580
        canvas = self.topwidget.render(self.size, focus=True)
568
581
        self.screen.draw_screen(self.size, canvas)
569
 
    
 
582
 
570
583
    def run(self):
571
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")
572
590
        self.bus = dbus.SystemBus()
573
591
        mandos_dbus_objc = self.bus.get_object(
574
592
            self.busname, "/", follow_name_owner_changes=True)
575
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
576
 
                                          dbus_interface
577
 
                                          = server_interface)
 
593
        self.mandos_serv = dbus.Interface(
 
594
            mandos_dbus_objc, dbus_interface=server_interface)
578
595
        try:
579
596
            mandos_clients = (self.mandos_serv
580
597
                              .GetAllClientsWithProperties())
581
598
            if not mandos_clients:
582
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
599
                log.warning("Note: Server has no clients.")
583
600
        except dbus.exceptions.DBusException:
584
 
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
601
            log.warning("Note: No Mandos server running.")
585
602
            mandos_clients = dbus.Dictionary()
586
 
        
 
603
 
587
604
        (self.mandos_serv
588
 
         .connect_to_signal("ClientRemoved",
 
605
         .connect_to_signal("InterfacesRemoved",
589
606
                            self.find_and_remove_client,
590
 
                            dbus_interface=server_interface,
 
607
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
591
608
                            byte_arrays=True))
592
609
        (self.mandos_serv
593
 
         .connect_to_signal("ClientAdded",
 
610
         .connect_to_signal("InterfacesAdded",
594
611
                            self.add_new_client,
595
 
                            dbus_interface=server_interface,
 
612
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
596
613
                            byte_arrays=True))
597
614
        (self.mandos_serv
598
615
         .connect_to_signal("ClientNotFound",
602
619
        for path, client in mandos_clients.items():
603
620
            client_proxy_object = self.bus.get_object(self.busname,
604
621
                                                      path)
605
 
            self.add_client(MandosClientWidget(server_proxy_object
606
 
                                               =self.mandos_serv,
607
 
                                               proxy_object
608
 
                                               =client_proxy_object,
609
 
                                               properties=client,
610
 
                                               update_hook
611
 
                                               =self.refresh,
612
 
                                               delete_hook
613
 
                                               =self.remove_client,
614
 
                                               logger
615
 
                                               =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),
616
628
                            path=path)
617
 
        
 
629
 
618
630
        self.refresh()
619
 
        self._input_callback_tag = (gobject.io_add_watch
620
 
                                    (sys.stdin.fileno(),
621
 
                                     gobject.IO_IN,
622
 
                                     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)))
623
636
        self.main_loop.run()
624
637
        # Main loop has finished, we should close everything now
625
 
        gobject.source_remove(self._input_callback_tag)
626
 
        self.screen.stop()
627
 
    
 
638
        GLib.source_remove(self._input_callback_tag)
 
639
        with warnings.catch_warnings():
 
640
            warnings.simplefilter("ignore", BytesWarning)
 
641
            self.screen.stop()
 
642
 
628
643
    def stop(self):
629
644
        self.main_loop.quit()
630
 
    
 
645
        log.removeHandler(self.loghandler)
 
646
        log.propagate = self.orig_log_propagate
 
647
 
631
648
    def process_input(self, source, condition):
632
649
        keys = self.screen.get_input()
633
 
        translations = { "ctrl n": "down",      # Emacs
634
 
                         "ctrl p": "up",        # Emacs
635
 
                         "ctrl v": "page down", # Emacs
636
 
                         "meta v": "page up",   # Emacs
637
 
                         " ": "page down",      # less
638
 
                         "f": "page down",      # less
639
 
                         "b": "page up",        # less
640
 
                         "j": "down",           # vi
641
 
                         "k": "up",             # vi
642
 
                         }
 
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
                        }
643
660
        for key in keys:
644
661
            try:
645
662
                key = translations[key]
646
663
            except KeyError:    # :-)
647
664
                pass
648
 
            
 
665
 
649
666
            if key == "q" or key == "Q":
650
667
                self.stop()
651
668
                break
652
669
            elif key == "window resize":
653
670
                self.size = self.screen.get_cols_rows()
654
671
                self.refresh()
655
 
            elif key == "\f":  # Ctrl-L
 
672
            elif key == "ctrl l":
 
673
                self.screen.clear()
656
674
                self.refresh()
657
675
            elif key == "l" or key == "D":
658
676
                self.toggle_log_display()
664
682
                if not self.log_visible:
665
683
                    self.log_visible = True
666
684
                    self.rebuild()
667
 
                self.log_message_raw(("bold",
668
 
                                      "  ".
669
 
                                      join(("q: Quit",
670
 
                                            "?: Help",
671
 
                                            "l: Log window toggle",
672
 
                                            "TAB: Switch window",
673
 
                                            "w: Wrap (log)"))))
674
 
                self.log_message_raw(("bold",
675
 
                                      "  "
676
 
                                      .join(("Clients:",
677
 
                                             "+: Enable",
678
 
                                             "-: Disable",
679
 
                                             "R: Remove",
680
 
                                             "s: Start new checker",
681
 
                                             "S: Stop checker",
682
 
                                             "C: Checker OK",
683
 
                                             "a: Approve",
684
 
                                             "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
                                   ))))
685
704
                self.refresh()
686
705
            elif key == "tab":
687
706
                if self.topwidget.get_focus() is self.logbox:
689
708
                else:
690
709
                    self.topwidget.set_focus(self.logbox)
691
710
                self.refresh()
692
 
            #elif (key == "end" or key == "meta >" or key == "G"
693
 
            #      or key == ">"):
694
 
            #    pass            # xxx end-of-buffer
695
 
            #elif (key == "home" or key == "meta <" or key == "g"
696
 
            #      or key == "<"):
697
 
            #    pass            # xxx beginning-of-buffer
698
 
            #elif key == "ctrl e" or key == "$":
699
 
            #    pass            # xxx move-end-of-line
700
 
            #elif key == "ctrl a" or key == "^":
701
 
            #    pass            # xxx move-beginning-of-line
702
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
703
 
            #    pass            # xxx left
704
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
705
 
            #    pass            # xxx right
706
 
            #elif key == "a":
707
 
            #    pass            # scroll up log
708
 
            #elif key == "z":
709
 
            #    pass            # scroll down log
 
711
            elif key == "v":
 
712
                if log.level < logging.INFO:
 
713
                    log.setLevel(logging.INFO)
 
714
                    log.info("Verbose mode: Off")
 
715
                else:
 
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
710
736
            elif self.topwidget.selectable():
711
737
                self.topwidget.keypress(self.size, key)
712
738
                self.refresh()
713
739
        return True
714
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
 
715
755
ui = UserInterface()
716
756
try:
717
757
    ui.run()
718
758
except KeyboardInterrupt:
719
 
    ui.screen.stop()
720
 
except Exception as e:
721
 
    ui.log_message(str(e))
722
 
    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()
723
766
    raise