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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 © 2009-2012 Teddy Hogeborn
7
 
# Copyright © 2009-2012 Björn Påhlsson
8
 
# 
9
 
# This program is free software: you can redistribute it and/or modify
10
 
# it under the terms of the GNU General Public License as published by
 
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 <http://www.gnu.org/licenses/>.
21
 
# 
 
22
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
23
#
22
24
# Contact the authors at <mandos@recompile.se>.
23
 
# 
24
 
 
 
25
#
25
26
from __future__ import (division, absolute_import, print_function,
26
27
                        unicode_literals)
27
28
 
 
29
try:
 
30
    from future_builtins import *
 
31
except ImportError:
 
32
    pass
 
33
 
28
34
import sys
 
35
import logging
29
36
import os
30
 
import signal
31
 
 
 
37
import warnings
32
38
import datetime
 
39
import locale
33
40
 
34
41
import urwid.curses_display
35
42
import urwid
36
43
 
37
44
from dbus.mainloop.glib import DBusGMainLoop
38
 
import gobject
 
45
from gi.repository import GLib
39
46
 
40
47
import dbus
41
48
 
42
 
import UserList
43
 
 
44
 
import locale
45
 
 
46
 
locale.setlocale(locale.LC_ALL, '')
47
 
 
48
 
import logging
49
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
49
if sys.version_info.major == 2:
 
50
    __metaclass__ = type
 
51
    str = unicode
 
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)
50
68
 
51
69
# Some useful constants
52
 
domain = 'se.recompile'
53
 
server_interface = domain + '.Mandos'
54
 
client_interface = domain + '.Mandos.Client'
55
 
version = "1.5.2"
56
 
 
57
 
# Always run in monochrome mode
58
 
urwid.curses_display.curses.has_colors = lambda : False
59
 
 
60
 
# Urwid doesn't support blinking, but we want it.  Since we have no
61
 
# use for underline on its own, we make underline also always blink.
62
 
urwid.curses_display.curses.A_UNDERLINE |= (
63
 
    urwid.curses_display.curses.A_BLINK)
 
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
 
    def __init__(self, proxy_object=None, *args, **kwargs):
87
 
        self.proxy = proxy_object # Mandos Client proxy object
88
 
        
89
 
        self.properties = dict()
 
103
    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
104
        self.proxy = proxy_object  # Mandos Client proxy object
 
105
        self.properties = dict() if properties is None else properties
90
106
        self.property_changed_match = (
91
 
            self.proxy.connect_to_signal("PropertyChanged",
92
 
                                         self.property_changed,
93
 
                                         client_interface,
 
107
            self.proxy.connect_to_signal("PropertiesChanged",
 
108
                                         self.properties_changed,
 
109
                                         dbus.PROPERTIES_IFACE,
94
110
                                         byte_arrays=True))
95
 
        
96
 
        self.properties.update(
97
 
            self.proxy.GetAll(client_interface,
98
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
99
 
 
100
 
        #XXX This breaks good super behaviour
101
 
#        super(MandosClientPropertyCache, self).__init__(
102
 
#            *args, **kwargs)
103
 
    
104
 
    def property_changed(self, property=None, value=None):
105
 
        """This is called whenever we get a PropertyChanged signal
106
 
        It updates the changed property in the "properties" dict.
 
111
 
 
112
        if properties is None:
 
113
            self.properties.update(self.proxy.GetAll(
 
114
                client_interface,
 
115
                dbus_interface=dbus.PROPERTIES_IFACE))
 
116
 
 
117
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
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.
107
122
        """
108
123
        # Update properties dict with new value
109
 
        self.properties[property] = value
110
 
    
111
 
    def delete(self, *args, **kwargs):
 
124
        if interface == client_interface:
 
125
            self.properties.update(properties)
 
126
 
 
127
    def delete(self):
112
128
        self.property_changed_match.remove()
113
 
        super(MandosClientPropertyCache, self).__init__(
114
 
            *args, **kwargs)
115
 
 
116
 
 
117
 
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
129
 
 
130
 
 
131
class MandosClientWidget(MandosClientPropertyCache, urwid.Widget):
118
132
    """A Mandos Client which is visible on the screen.
119
133
    """
120
 
    
 
134
 
 
135
    _sizing = frozenset(["flow"])
 
136
 
121
137
    def __init__(self, server_proxy_object=None, update_hook=None,
122
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
138
                 delete_hook=None, **kwargs):
123
139
        # Called on update
124
140
        self.update_hook = update_hook
125
141
        # Called on delete
126
142
        self.delete_hook = delete_hook
127
143
        # Mandos Server proxy object
128
144
        self.server_proxy_object = server_proxy_object
129
 
        # Logger
130
 
        self.logger = logger
131
 
        
 
145
 
132
146
        self._update_timer_callback_tag = None
133
 
        self._update_timer_callback_lock = 0
134
 
        
 
147
 
135
148
        # The widget shown normally
136
149
        self._text_widget = urwid.Text("")
137
150
        # The widget shown when we have focus
138
151
        self._focus_text_widget = urwid.Text("")
139
 
        super(MandosClientWidget, self).__init__(
140
 
            update_hook=update_hook, delete_hook=delete_hook,
141
 
            *args, **kwargs)
 
152
        super(MandosClientWidget, self).__init__(**kwargs)
142
153
        self.update()
143
154
        self.opened = False
144
 
        
145
 
        last_checked_ok = isoformat_to_datetime(self.properties
146
 
                                                ["LastCheckedOK"])
147
 
        
148
 
        if self.properties ["LastCheckerStatus"] != 0:
149
 
            self.using_timer(True)
150
 
        
151
 
        if self.need_approval:
152
 
            self.using_timer(True)
153
 
        
 
155
 
154
156
        self.match_objects = (
155
157
            self.proxy.connect_to_signal("CheckerCompleted",
156
158
                                         self.checker_completed,
172
174
                                         self.rejected,
173
175
                                         client_interface,
174
176
                                         byte_arrays=True))
175
 
        #self.logger('Created client %s' % (self.properties["Name"]))
176
 
    
177
 
    def property_changed(self, property=None, value=None):
178
 
        super(self, MandosClientWidget).property_changed(property,
179
 
                                                         value)
180
 
        if property == "ApprovalPending":
181
 
            using_timer(bool(value))
182
 
        if property == "LastCheckerStatus":
183
 
            using_timer(value != 0)
184
 
            #self.logger('Checker for client %s (command "%s")'
185
 
            #            ' was successful'
186
 
            #            % (self.properties["Name"], command))
187
 
    
 
177
        log.debug("Created client %s", self.properties["Name"])
 
178
 
188
179
    def using_timer(self, flag):
189
180
        """Call this method with True or False when timer should be
190
181
        activated or deactivated.
191
182
        """
192
 
        old = self._update_timer_callback_lock
193
 
        if flag:
194
 
            self._update_timer_callback_lock += 1
195
 
        else:
196
 
            self._update_timer_callback_lock -= 1
197
 
        if old == 0 and self._update_timer_callback_lock:
 
183
        if flag and self._update_timer_callback_tag is None:
198
184
            # Will update the shown timer value every second
199
 
            self._update_timer_callback_tag = (gobject.timeout_add
200
 
                                               (1000,
201
 
                                                self.update_timer))
202
 
        elif old and self._update_timer_callback_lock == 0:
203
 
            gobject.source_remove(self._update_timer_callback_tag)
 
185
            self._update_timer_callback_tag = (
 
186
                GLib.timeout_add(1000,
 
187
                                 glib_safely(self.update_timer)))
 
188
        elif not (flag or self._update_timer_callback_tag is None):
 
189
            GLib.source_remove(self._update_timer_callback_tag)
204
190
            self._update_timer_callback_tag = None
205
 
    
 
191
 
206
192
    def checker_completed(self, exitstatus, condition, command):
207
193
        if exitstatus == 0:
 
194
            log.debug('Checker for client %s (command "%s")'
 
195
                      " succeeded", self.properties["Name"], command)
208
196
            self.update()
209
197
            return
210
198
        # Checker failed
211
199
        if os.WIFEXITED(condition):
212
 
            self.logger('Checker for client %s (command "%s")'
213
 
                        ' failed with exit code %s'
214
 
                        % (self.properties["Name"], command,
215
 
                           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))
216
203
        elif os.WIFSIGNALED(condition):
217
 
            self.logger('Checker for client %s (command "%s")'
218
 
                        ' was killed by signal %s'
219
 
                        % (self.properties["Name"], command,
220
 
                           os.WTERMSIG(condition)))
221
 
        elif os.WCOREDUMP(condition):
222
 
            self.logger('Checker for client %s (command "%s")'
223
 
                        ' dumped core'
224
 
                        % (self.properties["Name"], command))
225
 
        else:
226
 
            self.logger('Checker for client %s completed'
227
 
                        ' mysteriously')
 
204
            log.info('Checker for client %s (command "%s") was'
 
205
                     " killed by signal %d", self.properties["Name"],
 
206
                     command, os.WTERMSIG(condition))
228
207
        self.update()
229
 
    
 
208
 
230
209
    def checker_started(self, command):
231
 
        """Server signals that a checker started. This could be useful
232
 
           to log in the future. """
233
 
        #self.logger('Client %s started checker "%s"'
234
 
        #            % (self.properties["Name"], unicode(command)))
235
 
        pass
236
 
    
 
210
        """Server signals that a checker started."""
 
211
        log.debug('Client %s started checker "%s"',
 
212
                  self.properties["Name"], command)
 
213
 
237
214
    def got_secret(self):
238
 
        self.logger('Client %s received its secret'
239
 
                    % self.properties["Name"])
240
 
    
 
215
        log.info("Client %s received its secret",
 
216
                 self.properties["Name"])
 
217
 
241
218
    def need_approval(self, timeout, default):
242
219
        if not default:
243
 
            message = 'Client %s needs approval within %s seconds'
 
220
            message = "Client %s needs approval within %f seconds"
244
221
        else:
245
 
            message = 'Client %s will get its secret in %s seconds'
246
 
        self.logger(message
247
 
                    % (self.properties["Name"], timeout/1000))
248
 
        self.using_timer(True)
249
 
    
 
222
            message = "Client %s will get its secret in %f seconds"
 
223
        log.info(message, self.properties["Name"], timeout/1000)
 
224
 
250
225
    def rejected(self, reason):
251
 
        self.logger('Client %s was rejected; reason: %s'
252
 
                    % (self.properties["Name"], reason))
253
 
    
 
226
        log.info("Client %s was rejected; reason: %s",
 
227
                 self.properties["Name"], reason)
 
228
 
254
229
    def selectable(self):
255
230
        """Make this a "selectable" widget.
256
 
        This overrides the method from urwid.FlowWidget."""
 
231
        This overrides the method from urwid.Widget."""
257
232
        return True
258
 
    
 
233
 
259
234
    def rows(self, maxcolrow, focus=False):
260
235
        """How many rows this widget will occupy might depend on
261
236
        whether we have focus or not.
262
 
        This overrides the method from urwid.FlowWidget"""
 
237
        This overrides the method from urwid.Widget"""
263
238
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
264
 
    
 
239
 
265
240
    def current_widget(self, focus=False):
266
241
        if focus or self.opened:
267
242
            return self._focus_widget
268
243
        return self._widget
269
 
    
 
244
 
270
245
    def update(self):
271
246
        "Called when what is visible on the screen should be updated."
272
247
        # How to add standout mode to a style
273
 
        with_standout = { "normal": "standout",
274
 
                          "bold": "bold-standout",
275
 
                          "underline-blink":
276
 
                              "underline-blink-standout",
277
 
                          "bold-underline-blink":
278
 
                              "bold-underline-blink-standout",
279
 
                          }
 
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
                         }
280
255
 
281
256
        # Rebuild focus and non-focus widgets using current properties
282
257
 
283
258
        # Base part of a client. Name!
284
 
        base = ('%(name)s: '
285
 
                      % {"name": self.properties["Name"]})
 
259
        base = "{name}: ".format(name=self.properties["Name"])
286
260
        if not self.properties["Enabled"]:
287
261
            message = "DISABLED"
 
262
            self.using_timer(False)
288
263
        elif self.properties["ApprovalPending"]:
289
 
            timeout = datetime.timedelta(milliseconds
290
 
                                         = self.properties
291
 
                                         ["ApprovalDelay"])
 
264
            timeout = datetime.timedelta(
 
265
                milliseconds=self.properties["ApprovalDelay"])
292
266
            last_approval_request = isoformat_to_datetime(
293
267
                self.properties["LastApprovalRequest"])
294
268
            if last_approval_request is not None:
295
 
                timer = timeout - (datetime.datetime.utcnow()
296
 
                                   - last_approval_request)
 
269
                timer = max(timeout - (datetime.datetime.utcnow()
 
270
                                       - last_approval_request),
 
271
                            datetime.timedelta())
297
272
            else:
298
273
                timer = datetime.timedelta()
299
274
            if self.properties["ApprovedByDefault"]:
300
 
                message = "Approval in %s. (d)eny?"
 
275
                message = "Approval in {}. (d)eny?"
301
276
            else:
302
 
                message = "Denial in %s. (a)pprove?"
303
 
            message = message % unicode(timer).rsplit(".", 1)[0]
 
277
                message = "Denial in {}. (a)pprove?"
 
278
            message = message.format(str(timer).rsplit(".", 1)[0])
 
279
            self.using_timer(True)
304
280
        elif self.properties["LastCheckerStatus"] != 0:
305
 
            # When checker has failed, print a timer until client expires
 
281
            # When checker has failed, show timer until client expires
306
282
            expires = self.properties["Expires"]
307
283
            if expires == "":
308
284
                timer = datetime.timedelta(0)
309
285
            else:
310
 
                expires = datetime.datetime.strptime(expires,
311
 
                                                     '%Y-%m-%dT%H:%M:%S.%f')
312
 
                timer = expires - datetime.datetime.utcnow()
313
 
            message = ('A checker has failed! Time until client'
314
 
                       ' gets disabled: %s'
315
 
                           % unicode(timer).rsplit(".", 1)[0])
 
286
                expires = (datetime.datetime.strptime
 
287
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
288
                timer = max(expires - datetime.datetime.utcnow(),
 
289
                            datetime.timedelta())
 
290
            message = ("A checker has failed! Time until client"
 
291
                       " gets disabled: {}"
 
292
                       .format(str(timer).rsplit(".", 1)[0]))
 
293
            self.using_timer(True)
316
294
        else:
317
295
            message = "enabled"
318
 
        self._text = "%s%s" % (base, message)
319
 
            
 
296
            self.using_timer(False)
 
297
        self._text = "{}{}".format(base, message)
 
298
 
320
299
        if not urwid.supports_unicode():
321
300
            self._text = self._text.encode("ascii", "replace")
322
301
        textlist = [("normal", self._text)]
332
311
        # Run update hook, if any
333
312
        if self.update_hook is not None:
334
313
            self.update_hook()
335
 
    
 
314
 
336
315
    def update_timer(self):
337
 
        """called by gobject. Will indefinitely loop until
338
 
        gobject.source_remove() on tag is called"""
 
316
        """called by GLib. Will indefinitely loop until
 
317
        GLib.source_remove() on tag is called
 
318
        """
339
319
        self.update()
340
320
        return True             # Keep calling this
341
 
    
342
 
    def delete(self, *args, **kwargs):
 
321
 
 
322
    def delete(self, **kwargs):
343
323
        if self._update_timer_callback_tag is not None:
344
 
            gobject.source_remove(self._update_timer_callback_tag)
 
324
            GLib.source_remove(self._update_timer_callback_tag)
345
325
            self._update_timer_callback_tag = None
346
326
        for match in self.match_objects:
347
327
            match.remove()
348
328
        self.match_objects = ()
349
329
        if self.delete_hook is not None:
350
330
            self.delete_hook(self)
351
 
        return super(MandosClientWidget, self).delete(*args, **kwargs)
352
 
    
 
331
        return super(MandosClientWidget, self).delete(**kwargs)
 
332
 
353
333
    def render(self, maxcolrow, focus=False):
354
334
        """Render differently if we have focus.
355
 
        This overrides the method from urwid.FlowWidget"""
 
335
        This overrides the method from urwid.Widget"""
356
336
        return self.current_widget(focus).render(maxcolrow,
357
337
                                                 focus=focus)
358
 
    
 
338
 
359
339
    def keypress(self, maxcolrow, key):
360
340
        """Handle keys.
361
 
        This overrides the method from urwid.FlowWidget"""
 
341
        This overrides the method from urwid.Widget"""
362
342
        if key == "+":
363
 
            self.proxy.Enable(dbus_interface = client_interface,
364
 
                              ignore_reply=True)
 
343
            self.proxy.Set(client_interface, "Enabled",
 
344
                           dbus.Boolean(True), ignore_reply=True,
 
345
                           dbus_interface=dbus.PROPERTIES_IFACE)
365
346
        elif key == "-":
366
 
            self.proxy.Disable(dbus_interface = client_interface,
367
 
                               ignore_reply=True)
 
347
            self.proxy.Set(client_interface, "Enabled", False,
 
348
                           ignore_reply=True,
 
349
                           dbus_interface=dbus.PROPERTIES_IFACE)
368
350
        elif key == "a":
369
351
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
370
 
                               dbus_interface = client_interface,
 
352
                               dbus_interface=client_interface,
371
353
                               ignore_reply=True)
372
354
        elif key == "d":
373
355
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
374
 
                                  dbus_interface = client_interface,
 
356
                               dbus_interface=client_interface,
375
357
                               ignore_reply=True)
376
358
        elif key == "R" or key == "_" or key == "ctrl k":
377
359
            self.server_proxy_object.RemoveClient(self.proxy
378
360
                                                  .object_path,
379
361
                                                  ignore_reply=True)
380
362
        elif key == "s":
381
 
            self.proxy.StartChecker(dbus_interface = client_interface,
382
 
                                    ignore_reply=True)
 
363
            self.proxy.Set(client_interface, "CheckerRunning",
 
364
                           dbus.Boolean(True), ignore_reply=True,
 
365
                           dbus_interface=dbus.PROPERTIES_IFACE)
383
366
        elif key == "S":
384
 
            self.proxy.StopChecker(dbus_interface = client_interface,
385
 
                                   ignore_reply=True)
 
367
            self.proxy.Set(client_interface, "CheckerRunning",
 
368
                           dbus.Boolean(False), ignore_reply=True,
 
369
                           dbus_interface=dbus.PROPERTIES_IFACE)
386
370
        elif key == "C":
387
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
371
            self.proxy.CheckedOK(dbus_interface=client_interface,
388
372
                                 ignore_reply=True)
389
373
        # xxx
390
374
#         elif key == "p" or key == "=":
395
379
#             self.open()
396
380
        else:
397
381
            return key
398
 
    
399
 
    def property_changed(self, property=None, value=None,
400
 
                         *args, **kwargs):
401
 
        """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.
402
385
        This overrides the method from MandosClientPropertyCache"""
403
 
        property_name = unicode(property)
404
 
        old_value = self.properties.get(property_name)
405
 
        super(MandosClientWidget, self).property_changed(
406
 
            property=property, value=value, *args, **kwargs)
407
 
        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):
408
392
            self.update()
409
393
 
410
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
 
411
405
class ConstrainedListBox(urwid.ListBox):
412
406
    """Like a normal urwid.ListBox, but will consume all "up" or
413
407
    "down" key presses, thus not allowing any containing widgets to
414
408
    use them as an excuse to shift focus away from this widget.
415
409
    """
416
 
    def keypress(self, maxcolrow, key):
417
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
410
    def keypress(self, *args, **kwargs):
 
411
        ret = (super(ConstrainedListBox, self)
 
412
               .keypress(*args, **kwargs))
418
413
        if ret in ("up", "down"):
419
414
            return
420
415
        return ret
421
416
 
422
417
 
423
 
class UserInterface(object):
 
418
class UserInterface:
424
419
    """This is the entire user interface - the whole screen
425
420
    with boxes, lists of client widgets, etc.
426
421
    """
427
422
    def __init__(self, max_log_length=1000):
428
423
        DBusGMainLoop(set_as_default=True)
429
 
        
 
424
 
430
425
        self.screen = urwid.curses_display.Screen()
431
 
        
 
426
 
432
427
        self.screen.register_palette((
433
428
                ("normal",
434
429
                 "default", "default", None),
435
430
                ("bold",
436
 
                 "default", "default", "bold"),
 
431
                 "bold", "default", "bold"),
437
432
                ("underline-blink",
438
 
                 "default", "default", "underline"),
 
433
                 "underline,blink", "default", "underline,blink"),
439
434
                ("standout",
440
 
                 "default", "default", "standout"),
 
435
                 "standout", "default", "standout"),
441
436
                ("bold-underline-blink",
442
 
                 "default", "default", ("bold", "underline")),
 
437
                 "bold,underline,blink", "default",
 
438
                 "bold,underline,blink"),
443
439
                ("bold-standout",
444
 
                 "default", "default", ("bold", "standout")),
 
440
                 "bold,standout", "default", "bold,standout"),
445
441
                ("underline-blink-standout",
446
 
                 "default", "default", ("underline", "standout")),
 
442
                 "underline,blink,standout", "default",
 
443
                 "underline,blink,standout"),
447
444
                ("bold-underline-blink-standout",
448
 
                 "default", "default", ("bold", "underline",
449
 
                                          "standout")),
 
445
                 "bold,underline,blink,standout", "default",
 
446
                 "bold,underline,blink,standout"),
450
447
                ))
451
 
        
 
448
 
452
449
        if urwid.supports_unicode():
453
 
            self.divider = "─" # \u2500
454
 
            #self.divider = "━" # \u2501
 
450
            self.divider = "─"  # \u2500
455
451
        else:
456
 
            #self.divider = "-" # \u002d
457
 
            self.divider = "_" # \u005f
458
 
        
 
452
            self.divider = "_"  # \u005f
 
453
 
459
454
        self.screen.start()
460
 
        
 
455
 
461
456
        self.size = self.screen.get_cols_rows()
462
 
        
 
457
 
463
458
        self.clients = urwid.SimpleListWalker([])
464
459
        self.clients_dict = {}
465
 
        
 
460
 
466
461
        # We will add Text widgets to this list
467
 
        self.log = []
 
462
        self.log = urwid.SimpleListWalker([])
468
463
        self.max_log_length = max_log_length
469
 
        
 
464
 
470
465
        # We keep a reference to the log widget so we can remove it
471
466
        # from the ListWalker without it getting destroyed
472
467
        self.logbox = ConstrainedListBox(self.log)
473
 
        
 
468
 
474
469
        # This keeps track of whether self.uilist currently has
475
470
        # self.logbox in it or not
476
471
        self.log_visible = True
477
472
        self.log_wrap = "any"
478
 
        
 
473
 
 
474
        self.loghandler = UILogHandler(self)
 
475
 
479
476
        self.rebuild()
480
 
        self.log_message_raw(("bold",
481
 
                              "Mandos Monitor version " + version))
482
 
        self.log_message_raw(("bold",
483
 
                              "q: Quit  ?: Help"))
484
 
        
485
 
        self.busname = domain + '.Mandos'
486
 
        self.main_loop = gobject.MainLoop()
487
 
    
488
 
    def client_not_found(self, fingerprint, address):
489
 
        self.log_message(("Client with address %s and fingerprint %s"
490
 
                          " could not be found" % (address,
491
 
                                                    fingerprint)))
492
 
    
 
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
 
493
488
    def rebuild(self):
494
489
        """This rebuilds the User Interface.
495
490
        Call this when the widget layout needs to change"""
496
491
        self.uilist = []
497
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
492
        # self.uilist.append(urwid.ListBox(self.clients))
498
493
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
499
494
                                                          clients),
500
 
                                       #header=urwid.Divider(),
 
495
                                       # header=urwid.Divider(),
501
496
                                       header=None,
502
 
                                       footer=
503
 
                                       urwid.Divider(div_char=
504
 
                                                     self.divider)))
 
497
                                       footer=urwid.Divider(
 
498
                                           div_char=self.divider)))
505
499
        if self.log_visible:
506
500
            self.uilist.append(self.logbox)
507
501
        self.topwidget = urwid.Pile(self.uilist)
508
 
    
509
 
    def log_message(self, message):
510
 
        timestamp = datetime.datetime.now().isoformat()
511
 
        self.log_message_raw(timestamp + ": " + message)
512
 
    
513
 
    def log_message_raw(self, markup):
514
 
        """Add a log message to the log buffer."""
 
502
 
 
503
    def add_log_line(self, markup):
515
504
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
516
 
        if (self.max_log_length
517
 
            and len(self.log) > self.max_log_length):
518
 
            del self.log[0:len(self.log)-self.max_log_length-1]
519
 
        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,
520
509
                              coming_from="above")
521
510
        self.refresh()
522
 
    
 
511
 
523
512
    def toggle_log_display(self):
524
513
        """Toggle visibility of the log buffer."""
525
514
        self.log_visible = not self.log_visible
526
515
        self.rebuild()
527
 
        #self.log_message("Log visibility changed to: "
528
 
        #                 + unicode(self.log_visible))
529
 
    
 
516
        log.debug("Log visibility changed to: %s", self.log_visible)
 
517
 
530
518
    def change_log_display(self):
531
519
        """Change type of log display.
532
520
        Currently, this toggles wrapping of text lines."""
536
524
            self.log_wrap = "clip"
537
525
        for textwidget in self.log:
538
526
            textwidget.set_wrap_mode(self.log_wrap)
539
 
        #self.log_message("Wrap mode: " + self.log_wrap)
540
 
    
541
 
    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):
542
530
        """Find a client by its object path and remove it.
543
 
        
544
 
        This is connected to the ClientRemoved signal from the
 
531
 
 
532
        This is connected to the InterfacesRemoved signal from the
545
533
        Mandos server object."""
 
534
        if client_interface not in interfaces:
 
535
            # Not a Mandos client object; ignore
 
536
            return
546
537
        try:
547
538
            client = self.clients_dict[path]
548
539
        except KeyError:
549
540
            # not found?
550
 
            self.log_message("Unknown client %r (%r) removed", name,
551
 
                             path)
 
541
            log.warning("Unknown client %s removed", path)
552
542
            return
553
543
        client.delete()
554
 
    
555
 
    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
556
554
        client_proxy_object = self.bus.get_object(self.busname, path)
557
 
        self.add_client(MandosClientWidget(server_proxy_object
558
 
                                           =self.mandos_serv,
559
 
                                           proxy_object
560
 
                                           =client_proxy_object,
561
 
                                           update_hook
562
 
                                           =self.refresh,
563
 
                                           delete_hook
564
 
                                           =self.remove_client,
565
 
                                           logger
566
 
                                           =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])),
567
561
                        path=path)
568
 
    
 
562
 
569
563
    def add_client(self, client, path=None):
570
564
        self.clients.append(client)
571
565
        if path is None:
572
566
            path = client.proxy.object_path
573
567
        self.clients_dict[path] = client
574
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
568
        self.clients.sort(key=lambda c: c.properties["Name"])
575
569
        self.refresh()
576
 
    
 
570
 
577
571
    def remove_client(self, client, path=None):
578
572
        self.clients.remove(client)
579
573
        if path is None:
580
574
            path = client.proxy.object_path
581
575
        del self.clients_dict[path]
582
 
        if not self.clients_dict:
583
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
584
 
            # is completely emptied, we need to recreate it.
585
 
            self.clients = urwid.SimpleListWalker([])
586
 
            self.rebuild()
587
576
        self.refresh()
588
 
    
 
577
 
589
578
    def refresh(self):
590
579
        """Redraw the screen"""
591
580
        canvas = self.topwidget.render(self.size, focus=True)
592
581
        self.screen.draw_screen(self.size, canvas)
593
 
    
 
582
 
594
583
    def run(self):
595
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")
596
590
        self.bus = dbus.SystemBus()
597
591
        mandos_dbus_objc = self.bus.get_object(
598
592
            self.busname, "/", follow_name_owner_changes=True)
599
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
600
 
                                          dbus_interface
601
 
                                          = server_interface)
 
593
        self.mandos_serv = dbus.Interface(
 
594
            mandos_dbus_objc, dbus_interface=server_interface)
602
595
        try:
603
596
            mandos_clients = (self.mandos_serv
604
597
                              .GetAllClientsWithProperties())
 
598
            if not mandos_clients:
 
599
                log.warning("Note: Server has no clients.")
605
600
        except dbus.exceptions.DBusException:
 
601
            log.warning("Note: No Mandos server running.")
606
602
            mandos_clients = dbus.Dictionary()
607
 
        
 
603
 
608
604
        (self.mandos_serv
609
 
         .connect_to_signal("ClientRemoved",
 
605
         .connect_to_signal("InterfacesRemoved",
610
606
                            self.find_and_remove_client,
611
 
                            dbus_interface=server_interface,
 
607
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
612
608
                            byte_arrays=True))
613
609
        (self.mandos_serv
614
 
         .connect_to_signal("ClientAdded",
 
610
         .connect_to_signal("InterfacesAdded",
615
611
                            self.add_new_client,
616
 
                            dbus_interface=server_interface,
 
612
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
617
613
                            byte_arrays=True))
618
614
        (self.mandos_serv
619
615
         .connect_to_signal("ClientNotFound",
620
616
                            self.client_not_found,
621
617
                            dbus_interface=server_interface,
622
618
                            byte_arrays=True))
623
 
        for path, client in mandos_clients.iteritems():
 
619
        for path, client in mandos_clients.items():
624
620
            client_proxy_object = self.bus.get_object(self.busname,
625
621
                                                      path)
626
 
            self.add_client(MandosClientWidget(server_proxy_object
627
 
                                               =self.mandos_serv,
628
 
                                               proxy_object
629
 
                                               =client_proxy_object,
630
 
                                               properties=client,
631
 
                                               update_hook
632
 
                                               =self.refresh,
633
 
                                               delete_hook
634
 
                                               =self.remove_client,
635
 
                                               logger
636
 
                                               =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),
637
628
                            path=path)
638
629
 
639
630
        self.refresh()
640
 
        self._input_callback_tag = (gobject.io_add_watch
641
 
                                    (sys.stdin.fileno(),
642
 
                                     gobject.IO_IN,
643
 
                                     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)))
644
636
        self.main_loop.run()
645
637
        # Main loop has finished, we should close everything now
646
 
        gobject.source_remove(self._input_callback_tag)
647
 
        self.screen.stop()
648
 
    
 
638
        GLib.source_remove(self._input_callback_tag)
 
639
        with warnings.catch_warnings():
 
640
            warnings.simplefilter("ignore", BytesWarning)
 
641
            self.screen.stop()
 
642
 
649
643
    def stop(self):
650
644
        self.main_loop.quit()
651
 
    
 
645
        log.removeHandler(self.loghandler)
 
646
        log.propagate = self.orig_log_propagate
 
647
 
652
648
    def process_input(self, source, condition):
653
649
        keys = self.screen.get_input()
654
 
        translations = { "ctrl n": "down",      # Emacs
655
 
                         "ctrl p": "up",        # Emacs
656
 
                         "ctrl v": "page down", # Emacs
657
 
                         "meta v": "page up",   # Emacs
658
 
                         " ": "page down",      # less
659
 
                         "f": "page down",      # less
660
 
                         "b": "page up",        # less
661
 
                         "j": "down",           # vi
662
 
                         "k": "up",             # vi
663
 
                         }
 
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
                        }
664
660
        for key in keys:
665
661
            try:
666
662
                key = translations[key]
667
663
            except KeyError:    # :-)
668
664
                pass
669
 
            
 
665
 
670
666
            if key == "q" or key == "Q":
671
667
                self.stop()
672
668
                break
673
669
            elif key == "window resize":
674
670
                self.size = self.screen.get_cols_rows()
675
671
                self.refresh()
676
 
            elif key == "\f":  # Ctrl-L
 
672
            elif key == "ctrl l":
 
673
                self.screen.clear()
677
674
                self.refresh()
678
675
            elif key == "l" or key == "D":
679
676
                self.toggle_log_display()
685
682
                if not self.log_visible:
686
683
                    self.log_visible = True
687
684
                    self.rebuild()
688
 
                self.log_message_raw(("bold",
689
 
                                      "  ".
690
 
                                      join(("q: Quit",
691
 
                                            "?: Help",
692
 
                                            "l: Log window toggle",
693
 
                                            "TAB: Switch window",
694
 
                                            "w: Wrap (log)"))))
695
 
                self.log_message_raw(("bold",
696
 
                                      "  "
697
 
                                      .join(("Clients:",
698
 
                                             "+: Enable",
699
 
                                             "-: Disable",
700
 
                                             "R: Remove",
701
 
                                             "s: Start new checker",
702
 
                                             "S: Stop checker",
703
 
                                             "C: Checker OK",
704
 
                                             "a: Approve",
705
 
                                             "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
                                   ))))
706
704
                self.refresh()
707
705
            elif key == "tab":
708
706
                if self.topwidget.get_focus() is self.logbox:
710
708
                else:
711
709
                    self.topwidget.set_focus(self.logbox)
712
710
                self.refresh()
713
 
            #elif (key == "end" or key == "meta >" or key == "G"
714
 
            #      or key == ">"):
715
 
            #    pass            # xxx end-of-buffer
716
 
            #elif (key == "home" or key == "meta <" or key == "g"
717
 
            #      or key == "<"):
718
 
            #    pass            # xxx beginning-of-buffer
719
 
            #elif key == "ctrl e" or key == "$":
720
 
            #    pass            # xxx move-end-of-line
721
 
            #elif key == "ctrl a" or key == "^":
722
 
            #    pass            # xxx move-beginning-of-line
723
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
724
 
            #    pass            # xxx left
725
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
726
 
            #    pass            # xxx right
727
 
            #elif key == "a":
728
 
            #    pass            # scroll up log
729
 
            #elif key == "z":
730
 
            #    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
731
736
            elif self.topwidget.selectable():
732
737
                self.topwidget.keypress(self.size, key)
733
738
                self.refresh()
734
739
        return True
735
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
 
736
755
ui = UserInterface()
737
756
try:
738
757
    ui.run()
739
758
except KeyboardInterrupt:
740
 
    ui.screen.stop()
741
 
except Exception, e:
742
 
    ui.log_message(unicode(e))
743
 
    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()
744
766
    raise