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* Makefile (DOCS): Added "intro.8mandos".
  (intro.8mandos, intro.8mandos.xhtml): New.
* README: Replaced text with link, reference and short summary.
* intro.xml: New.
* mandos-clients.conf.xml (SEE ALSO): Added "intro(8mandos)".
* mandos-ctl.xml (SEE ALSO): - '' -
* mandos-keygen.xml (SEE ALSO): - '' -
* mandos-monitor.xml (SEE ALSO): - '' -
* mandos.conf.xml (SEE ALSO): - '' -
* mandos.xml (SEE ALSO): - '' -
* plugin-runner.xml (SEE ALSO): - '' -
* plugins.d/askpass-fifo.xml (SEE ALSO): - '' -
* plugins.d/mandos-client.xml (SEE ALSO): - '' -
* plugins.d/password-prompt.xml (SEE ALSO): - '' -
* plugins.d/plymouth.xml (SEE ALSO): - '' -
* plugins.d/splashy.xml (SEE ALSO): - '' -
* plugins.d/usplash.xml (SEE ALSO): - '' -

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mandos-monitor
1
 
#!/usr/bin/python3 -bbI
 
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
#
 
3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
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
 
5
# 
 
6
# Copyright © 2009-2011 Teddy Hogeborn
 
7
# Copyright © 2009-2011 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
13
11
# the Free Software Foundation, either version 3 of the License, or
14
12
# (at your option) any later version.
15
13
#
16
 
#     Mandos is distributed in the hope that it will be useful, but
17
 
#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
14
#     This program is distributed in the hope that it will be useful,
 
15
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
18
16
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19
17
#     GNU General Public License for more details.
20
 
#
 
18
# 
21
19
# You should have received a copy of the GNU General Public License
22
 
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
23
 
#
24
 
# Contact the authors at <mandos@recompile.se>.
25
 
#
 
20
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
21
# 
 
22
# Contact the authors at <mandos@fukt.bsnet.se>.
 
23
# 
 
24
 
26
25
from __future__ import (division, absolute_import, print_function,
27
26
                        unicode_literals)
28
27
 
29
 
try:
30
 
    from future_builtins import *
31
 
except ImportError:
32
 
    pass
33
 
 
34
28
import sys
35
 
import logging
36
29
import os
37
 
import warnings
 
30
import signal
 
31
 
38
32
import datetime
39
 
import locale
40
33
 
41
34
import urwid.curses_display
42
35
import urwid
43
36
 
44
37
from dbus.mainloop.glib import DBusGMainLoop
45
 
from gi.repository import GLib
 
38
import gobject
46
39
 
47
40
import dbus
48
41
 
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)
 
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)
68
50
 
69
51
# Some useful constants
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
 
 
 
52
domain = 'se.bsnet.fukt'
 
53
server_interface = domain + '.Mandos'
 
54
client_interface = domain + '.Mandos.Client'
 
55
version = "1.3.1"
 
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)
80
64
 
81
65
def isoformat_to_datetime(iso):
82
66
    "Parse an ISO 8601 date string to a datetime.datetime()"
91
75
                             int(day),
92
76
                             int(hour),
93
77
                             int(minute),
94
 
                             int(second),            # Whole seconds
95
 
                             int(fraction*1000000))  # Microseconds
96
 
 
97
 
 
98
 
class MandosClientPropertyCache:
 
78
                             int(second),           # Whole seconds
 
79
                             int(fraction*1000000)) # Microseconds
 
80
 
 
81
class MandosClientPropertyCache(object):
99
82
    """This wraps a Mandos Client D-Bus proxy object, caches the
100
83
    properties and calls a hook function when any of them are
101
84
    changed.
102
85
    """
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
 
86
    def __init__(self, proxy_object=None, *args, **kwargs):
 
87
        self.proxy = proxy_object # Mandos Client proxy object
 
88
        
 
89
        self.properties = dict()
106
90
        self.property_changed_match = (
107
 
            self.proxy.connect_to_signal("PropertiesChanged",
108
 
                                         self.properties_changed,
109
 
                                         dbus.PROPERTIES_IFACE,
 
91
            self.proxy.connect_to_signal("PropertyChanged",
 
92
                                         self.property_changed,
 
93
                                         client_interface,
110
94
                                         byte_arrays=True))
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.
 
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.
122
107
        """
123
108
        # Update properties dict with new value
124
 
        if interface == client_interface:
125
 
            self.properties.update(properties)
126
 
 
127
 
    def delete(self):
 
109
        self.properties[property] = value
 
110
    
 
111
    def delete(self, *args, **kwargs):
128
112
        self.property_changed_match.remove()
 
113
        super(MandosClientPropertyCache, self).__init__(
 
114
            *args, **kwargs)
129
115
 
130
116
 
131
117
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
132
118
    """A Mandos Client which is visible on the screen.
133
119
    """
134
 
 
 
120
    
135
121
    def __init__(self, server_proxy_object=None, update_hook=None,
136
 
                 delete_hook=None, **kwargs):
 
122
                 delete_hook=None, logger=None, *args, **kwargs):
137
123
        # Called on update
138
124
        self.update_hook = update_hook
139
125
        # Called on delete
140
126
        self.delete_hook = delete_hook
141
127
        # Mandos Server proxy object
142
128
        self.server_proxy_object = server_proxy_object
143
 
 
 
129
        # Logger
 
130
        self.logger = logger
 
131
        
144
132
        self._update_timer_callback_tag = None
145
 
 
 
133
        self._update_timer_callback_lock = 0
 
134
        self.last_checker_failed = False
 
135
        
146
136
        # The widget shown normally
147
137
        self._text_widget = urwid.Text("")
148
138
        # The widget shown when we have focus
149
139
        self._focus_text_widget = urwid.Text("")
150
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
140
        super(MandosClientWidget, self).__init__(
 
141
            update_hook=update_hook, delete_hook=delete_hook,
 
142
            *args, **kwargs)
151
143
        self.update()
152
144
        self.opened = False
153
 
 
 
145
        
 
146
        last_checked_ok = isoformat_to_datetime(self.properties
 
147
                                                ["LastCheckedOK"])
 
148
        if last_checked_ok is None:
 
149
            self.last_checker_failed = True
 
150
        else:
 
151
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
152
                                         - last_checked_ok)
 
153
                                        > datetime.timedelta
 
154
                                        (milliseconds=
 
155
                                         self.properties
 
156
                                         ["Interval"]))
 
157
        
 
158
        if self.last_checker_failed:
 
159
            self.using_timer(True)
 
160
        
 
161
        if self.need_approval:
 
162
            self.using_timer(True)
 
163
        
154
164
        self.match_objects = (
155
165
            self.proxy.connect_to_signal("CheckerCompleted",
156
166
                                         self.checker_completed,
172
182
                                         self.rejected,
173
183
                                         client_interface,
174
184
                                         byte_arrays=True))
175
 
        log.debug("Created client %s", self.properties["Name"])
176
 
 
 
185
        #self.logger('Created client %s' % (self.properties["Name"]))
 
186
    
 
187
    def property_changed(self, property=None, value=None):
 
188
        super(self, MandosClientWidget).property_changed(property,
 
189
                                                         value)
 
190
        if property == "ApprovalPending":
 
191
            using_timer(bool(value))
 
192
        
177
193
    def using_timer(self, flag):
178
194
        """Call this method with True or False when timer should be
179
195
        activated or deactivated.
180
196
        """
181
 
        if flag and self._update_timer_callback_tag is None:
182
 
            # Will update the shown timer value every second
183
 
            self._update_timer_callback_tag = (
184
 
                GLib.timeout_add(1000,
185
 
                                 glib_safely(self.update_timer)))
186
 
        elif not (flag or self._update_timer_callback_tag is None):
187
 
            GLib.source_remove(self._update_timer_callback_tag)
 
197
        old = self._update_timer_callback_lock
 
198
        if flag:
 
199
            self._update_timer_callback_lock += 1
 
200
        else:
 
201
            self._update_timer_callback_lock -= 1
 
202
        if old == 0 and self._update_timer_callback_lock:
 
203
            self._update_timer_callback_tag = (gobject.timeout_add
 
204
                                               (1000,
 
205
                                                self.update_timer))
 
206
        elif old and self._update_timer_callback_lock == 0:
 
207
            gobject.source_remove(self._update_timer_callback_tag)
188
208
            self._update_timer_callback_tag = None
189
 
 
 
209
    
190
210
    def checker_completed(self, exitstatus, condition, command):
191
211
        if exitstatus == 0:
192
 
            log.debug('Checker for client %s (command "%s")'
193
 
                      " succeeded", self.properties["Name"], command)
 
212
            if self.last_checker_failed:
 
213
                self.last_checker_failed = False
 
214
                self.using_timer(False)
 
215
            #self.logger('Checker for client %s (command "%s")'
 
216
            #            ' was successful'
 
217
            #            % (self.properties["Name"], command))
194
218
            self.update()
195
219
            return
196
220
        # Checker failed
 
221
        if not self.last_checker_failed:
 
222
            self.last_checker_failed = True
 
223
            self.using_timer(True)
197
224
        if os.WIFEXITED(condition):
198
 
            log.info('Checker for client %s (command "%s") failed'
199
 
                     " with exit code %d", self.properties["Name"],
200
 
                     command, os.WEXITSTATUS(condition))
 
225
            self.logger('Checker for client %s (command "%s")'
 
226
                        ' failed with exit code %s'
 
227
                        % (self.properties["Name"], command,
 
228
                           os.WEXITSTATUS(condition)))
201
229
        elif os.WIFSIGNALED(condition):
202
 
            log.info('Checker for client %s (command "%s") was'
203
 
                     " killed by signal %d", self.properties["Name"],
204
 
                     command, os.WTERMSIG(condition))
 
230
            self.logger('Checker for client %s (command "%s")'
 
231
                        ' was killed by signal %s'
 
232
                        % (self.properties["Name"], command,
 
233
                           os.WTERMSIG(condition)))
 
234
        elif os.WCOREDUMP(condition):
 
235
            self.logger('Checker for client %s (command "%s")'
 
236
                        ' dumped core'
 
237
                        % (self.properties["Name"], command))
 
238
        else:
 
239
            self.logger('Checker for client %s completed'
 
240
                        ' mysteriously')
205
241
        self.update()
206
 
 
 
242
    
207
243
    def checker_started(self, command):
208
 
        """Server signals that a checker started."""
209
 
        log.debug('Client %s started checker "%s"',
210
 
                  self.properties["Name"], command)
211
 
 
 
244
        #self.logger('Client %s started checker "%s"'
 
245
        #            % (self.properties["Name"], unicode(command)))
 
246
        pass
 
247
    
212
248
    def got_secret(self):
213
 
        log.info("Client %s received its secret",
214
 
                 self.properties["Name"])
215
 
 
 
249
        self.last_checker_failed = False
 
250
        self.logger('Client %s received its secret'
 
251
                    % self.properties["Name"])
 
252
    
216
253
    def need_approval(self, timeout, default):
217
254
        if not default:
218
 
            message = "Client %s needs approval within %f seconds"
 
255
            message = 'Client %s needs approval within %s seconds'
219
256
        else:
220
 
            message = "Client %s will get its secret in %f seconds"
221
 
        log.info(message, self.properties["Name"], timeout/1000)
222
 
 
 
257
            message = 'Client %s will get its secret in %s seconds'
 
258
        self.logger(message
 
259
                    % (self.properties["Name"], timeout/1000))
 
260
        self.using_timer(True)
 
261
    
223
262
    def rejected(self, reason):
224
 
        log.info("Client %s was rejected; reason: %s",
225
 
                 self.properties["Name"], reason)
226
 
 
 
263
        self.logger('Client %s was rejected; reason: %s'
 
264
                    % (self.properties["Name"], reason))
 
265
    
227
266
    def selectable(self):
228
267
        """Make this a "selectable" widget.
229
268
        This overrides the method from urwid.FlowWidget."""
230
269
        return True
231
 
 
 
270
    
232
271
    def rows(self, maxcolrow, focus=False):
233
272
        """How many rows this widget will occupy might depend on
234
273
        whether we have focus or not.
235
274
        This overrides the method from urwid.FlowWidget"""
236
275
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
237
 
 
 
276
    
238
277
    def current_widget(self, focus=False):
239
278
        if focus or self.opened:
240
279
            return self._focus_widget
241
280
        return self._widget
242
 
 
 
281
    
243
282
    def update(self):
244
283
        "Called when what is visible on the screen should be updated."
245
284
        # How to add standout mode to a style
246
 
        with_standout = {"normal": "standout",
247
 
                         "bold": "bold-standout",
248
 
                         "underline-blink":
249
 
                         "underline-blink-standout",
250
 
                         "bold-underline-blink":
251
 
                         "bold-underline-blink-standout",
252
 
                         }
 
285
        with_standout = { "normal": "standout",
 
286
                          "bold": "bold-standout",
 
287
                          "underline-blink":
 
288
                              "underline-blink-standout",
 
289
                          "bold-underline-blink":
 
290
                              "bold-underline-blink-standout",
 
291
                          }
253
292
 
254
293
        # Rebuild focus and non-focus widgets using current properties
255
294
 
256
295
        # Base part of a client. Name!
257
 
        base = "{name}: ".format(name=self.properties["Name"])
 
296
        base = ('%(name)s: '
 
297
                      % {"name": self.properties["Name"]})
258
298
        if not self.properties["Enabled"]:
259
299
            message = "DISABLED"
260
 
            self.using_timer(False)
261
300
        elif self.properties["ApprovalPending"]:
262
 
            timeout = datetime.timedelta(
263
 
                milliseconds=self.properties["ApprovalDelay"])
 
301
            timeout = datetime.timedelta(milliseconds
 
302
                                         = self.properties
 
303
                                         ["ApprovalDelay"])
264
304
            last_approval_request = isoformat_to_datetime(
265
305
                self.properties["LastApprovalRequest"])
266
306
            if last_approval_request is not None:
267
 
                timer = max(timeout - (datetime.datetime.utcnow()
268
 
                                       - last_approval_request),
269
 
                            datetime.timedelta())
 
307
                timer = timeout - (datetime.datetime.utcnow()
 
308
                                   - last_approval_request)
270
309
            else:
271
310
                timer = datetime.timedelta()
272
311
            if self.properties["ApprovedByDefault"]:
273
 
                message = "Approval in {}. (d)eny?"
274
 
            else:
275
 
                message = "Denial in {}. (a)pprove?"
276
 
            message = message.format(str(timer).rsplit(".", 1)[0])
277
 
            self.using_timer(True)
278
 
        elif self.properties["LastCheckerStatus"] != 0:
279
 
            # When checker has failed, show timer until client expires
280
 
            expires = self.properties["Expires"]
281
 
            if expires == "":
282
 
                timer = datetime.timedelta(0)
283
 
            else:
284
 
                expires = (datetime.datetime.strptime
285
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
286
 
                timer = max(expires - datetime.datetime.utcnow(),
287
 
                            datetime.timedelta())
288
 
            message = ("A checker has failed! Time until client"
289
 
                       " gets disabled: {}"
290
 
                       .format(str(timer).rsplit(".", 1)[0]))
291
 
            self.using_timer(True)
 
312
                message = "Approval in %s. (d)eny?"
 
313
            else:
 
314
                message = "Denial in %s. (a)pprove?"
 
315
            message = message % unicode(timer).rsplit(".", 1)[0]
 
316
        elif self.last_checker_failed:
 
317
            timeout = datetime.timedelta(milliseconds
 
318
                                         = self.properties
 
319
                                         ["Timeout"])
 
320
            last_ok = isoformat_to_datetime(
 
321
                max((self.properties["LastCheckedOK"]
 
322
                     or self.properties["Created"]),
 
323
                    self.properties["LastEnabled"]))
 
324
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
325
            message = ('A checker has failed! Time until client'
 
326
                       ' gets disabled: %s'
 
327
                           % unicode(timer).rsplit(".", 1)[0])
292
328
        else:
293
329
            message = "enabled"
294
 
            self.using_timer(False)
295
 
        self._text = "{}{}".format(base, message)
296
 
 
 
330
        self._text = "%s%s" % (base, message)
 
331
            
297
332
        if not urwid.supports_unicode():
298
333
            self._text = self._text.encode("ascii", "replace")
299
334
        textlist = [("normal", self._text)]
309
344
        # Run update hook, if any
310
345
        if self.update_hook is not None:
311
346
            self.update_hook()
312
 
 
 
347
    
313
348
    def update_timer(self):
314
 
        """called by GLib. Will indefinitely loop until
315
 
        GLib.source_remove() on tag is called
316
 
        """
 
349
        "called by gobject"
317
350
        self.update()
318
351
        return True             # Keep calling this
319
 
 
320
 
    def delete(self, **kwargs):
 
352
    
 
353
    def delete(self, *args, **kwargs):
321
354
        if self._update_timer_callback_tag is not None:
322
 
            GLib.source_remove(self._update_timer_callback_tag)
 
355
            gobject.source_remove(self._update_timer_callback_tag)
323
356
            self._update_timer_callback_tag = None
324
357
        for match in self.match_objects:
325
358
            match.remove()
326
359
        self.match_objects = ()
327
360
        if self.delete_hook is not None:
328
361
            self.delete_hook(self)
329
 
        return super(MandosClientWidget, self).delete(**kwargs)
330
 
 
 
362
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
363
    
331
364
    def render(self, maxcolrow, focus=False):
332
365
        """Render differently if we have focus.
333
366
        This overrides the method from urwid.FlowWidget"""
334
367
        return self.current_widget(focus).render(maxcolrow,
335
368
                                                 focus=focus)
336
 
 
 
369
    
337
370
    def keypress(self, maxcolrow, key):
338
371
        """Handle keys.
339
372
        This overrides the method from urwid.FlowWidget"""
340
373
        if key == "+":
341
 
            self.proxy.Set(client_interface, "Enabled",
342
 
                           dbus.Boolean(True), ignore_reply=True,
343
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
374
            self.proxy.Enable(dbus_interface = client_interface,
 
375
                              ignore_reply=True)
344
376
        elif key == "-":
345
 
            self.proxy.Set(client_interface, "Enabled", False,
346
 
                           ignore_reply=True,
347
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
377
            self.proxy.Disable(dbus_interface = client_interface,
 
378
                               ignore_reply=True)
348
379
        elif key == "a":
349
380
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
350
 
                               dbus_interface=client_interface,
 
381
                               dbus_interface = client_interface,
351
382
                               ignore_reply=True)
352
383
        elif key == "d":
353
384
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
354
 
                               dbus_interface=client_interface,
 
385
                                  dbus_interface = client_interface,
355
386
                               ignore_reply=True)
356
387
        elif key == "R" or key == "_" or key == "ctrl k":
357
388
            self.server_proxy_object.RemoveClient(self.proxy
358
389
                                                  .object_path,
359
390
                                                  ignore_reply=True)
360
391
        elif key == "s":
361
 
            self.proxy.Set(client_interface, "CheckerRunning",
362
 
                           dbus.Boolean(True), ignore_reply=True,
363
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
392
            self.proxy.StartChecker(dbus_interface = client_interface,
 
393
                                    ignore_reply=True)
364
394
        elif key == "S":
365
 
            self.proxy.Set(client_interface, "CheckerRunning",
366
 
                           dbus.Boolean(False), ignore_reply=True,
367
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
395
            self.proxy.StopChecker(dbus_interface = client_interface,
 
396
                                   ignore_reply=True)
368
397
        elif key == "C":
369
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
398
            self.proxy.CheckedOK(dbus_interface = client_interface,
370
399
                                 ignore_reply=True)
371
400
        # xxx
372
401
#         elif key == "p" or key == "=":
377
406
#             self.open()
378
407
        else:
379
408
            return key
380
 
 
381
 
    def properties_changed(self, interface, properties, invalidated):
382
 
        """Call self.update() if any properties changed.
 
409
    
 
410
    def property_changed(self, property=None, value=None,
 
411
                         *args, **kwargs):
 
412
        """Call self.update() if old value is not new value.
383
413
        This overrides the method from MandosClientPropertyCache"""
384
 
        old_values = {key: self.properties.get(key)
385
 
                      for key in properties.keys()}
386
 
        super(MandosClientWidget, self).properties_changed(
387
 
            interface, properties, invalidated)
388
 
        if any(old_values[key] != self.properties.get(key)
389
 
               for key in old_values):
 
414
        property_name = unicode(property)
 
415
        old_value = self.properties.get(property_name)
 
416
        super(MandosClientWidget, self).property_changed(
 
417
            property=property, value=value, *args, **kwargs)
 
418
        if self.properties.get(property_name) != old_value:
390
419
            self.update()
391
420
 
392
421
 
393
 
def glib_safely(func, retval=True):
394
 
    def safe_func(*args, **kwargs):
395
 
        try:
396
 
            return func(*args, **kwargs)
397
 
        except Exception:
398
 
            log.exception("")
399
 
            return retval
400
 
    return safe_func
401
 
 
402
 
 
403
422
class ConstrainedListBox(urwid.ListBox):
404
423
    """Like a normal urwid.ListBox, but will consume all "up" or
405
424
    "down" key presses, thus not allowing any containing widgets to
406
425
    use them as an excuse to shift focus away from this widget.
407
426
    """
408
 
    def keypress(self, *args, **kwargs):
409
 
        ret = (super(ConstrainedListBox, self)
410
 
               .keypress(*args, **kwargs))
 
427
    def keypress(self, maxcolrow, key):
 
428
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
411
429
        if ret in ("up", "down"):
412
430
            return
413
431
        return ret
414
432
 
415
433
 
416
 
class UserInterface:
 
434
class UserInterface(object):
417
435
    """This is the entire user interface - the whole screen
418
436
    with boxes, lists of client widgets, etc.
419
437
    """
420
438
    def __init__(self, max_log_length=1000):
421
439
        DBusGMainLoop(set_as_default=True)
422
 
 
 
440
        
423
441
        self.screen = urwid.curses_display.Screen()
424
 
 
 
442
        
425
443
        self.screen.register_palette((
426
444
                ("normal",
427
445
                 "default", "default", None),
428
446
                ("bold",
429
 
                 "bold", "default", "bold"),
 
447
                 "default", "default", "bold"),
430
448
                ("underline-blink",
431
 
                 "underline,blink", "default", "underline,blink"),
 
449
                 "default", "default", "underline"),
432
450
                ("standout",
433
 
                 "standout", "default", "standout"),
 
451
                 "default", "default", "standout"),
434
452
                ("bold-underline-blink",
435
 
                 "bold,underline,blink", "default",
436
 
                 "bold,underline,blink"),
 
453
                 "default", "default", ("bold", "underline")),
437
454
                ("bold-standout",
438
 
                 "bold,standout", "default", "bold,standout"),
 
455
                 "default", "default", ("bold", "standout")),
439
456
                ("underline-blink-standout",
440
 
                 "underline,blink,standout", "default",
441
 
                 "underline,blink,standout"),
 
457
                 "default", "default", ("underline", "standout")),
442
458
                ("bold-underline-blink-standout",
443
 
                 "bold,underline,blink,standout", "default",
444
 
                 "bold,underline,blink,standout"),
 
459
                 "default", "default", ("bold", "underline",
 
460
                                          "standout")),
445
461
                ))
446
 
 
 
462
        
447
463
        if urwid.supports_unicode():
448
 
            self.divider = "─"  # \u2500
 
464
            self.divider = "─" # \u2500
 
465
            #self.divider = "━" # \u2501
449
466
        else:
450
 
            self.divider = "_"  # \u005f
451
 
 
 
467
            #self.divider = "-" # \u002d
 
468
            self.divider = "_" # \u005f
 
469
        
452
470
        self.screen.start()
453
 
 
 
471
        
454
472
        self.size = self.screen.get_cols_rows()
455
 
 
 
473
        
456
474
        self.clients = urwid.SimpleListWalker([])
457
475
        self.clients_dict = {}
458
 
 
 
476
        
459
477
        # We will add Text widgets to this list
460
 
        self.log = urwid.SimpleListWalker([])
 
478
        self.log = []
461
479
        self.max_log_length = max_log_length
462
 
 
 
480
        
463
481
        # We keep a reference to the log widget so we can remove it
464
482
        # from the ListWalker without it getting destroyed
465
483
        self.logbox = ConstrainedListBox(self.log)
466
 
 
 
484
        
467
485
        # This keeps track of whether self.uilist currently has
468
486
        # self.logbox in it or not
469
487
        self.log_visible = True
470
488
        self.log_wrap = "any"
471
 
 
472
 
        self.loghandler = UILogHandler(self)
473
 
 
 
489
        
474
490
        self.rebuild()
475
 
        self.add_log_line(("bold",
476
 
                           "Mandos Monitor version " + version))
477
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
478
 
 
479
 
        self.busname = domain + ".Mandos"
480
 
        self.main_loop = GLib.MainLoop()
481
 
 
482
 
    def client_not_found(self, key_id, address):
483
 
        log.info("Client with address %s and key ID %s could"
484
 
                 " not be found", address, key_id)
485
 
 
 
491
        self.log_message_raw(("bold",
 
492
                              "Mandos Monitor version " + version))
 
493
        self.log_message_raw(("bold",
 
494
                              "q: Quit  ?: Help"))
 
495
        
 
496
        self.busname = domain + '.Mandos'
 
497
        self.main_loop = gobject.MainLoop()
 
498
        self.bus = dbus.SystemBus()
 
499
        mandos_dbus_objc = self.bus.get_object(
 
500
            self.busname, "/", follow_name_owner_changes=True)
 
501
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
502
                                          dbus_interface
 
503
                                          = server_interface)
 
504
        try:
 
505
            mandos_clients = (self.mandos_serv
 
506
                              .GetAllClientsWithProperties())
 
507
        except dbus.exceptions.DBusException:
 
508
            mandos_clients = dbus.Dictionary()
 
509
        
 
510
        (self.mandos_serv
 
511
         .connect_to_signal("ClientRemoved",
 
512
                            self.find_and_remove_client,
 
513
                            dbus_interface=server_interface,
 
514
                            byte_arrays=True))
 
515
        (self.mandos_serv
 
516
         .connect_to_signal("ClientAdded",
 
517
                            self.add_new_client,
 
518
                            dbus_interface=server_interface,
 
519
                            byte_arrays=True))
 
520
        (self.mandos_serv
 
521
         .connect_to_signal("ClientNotFound",
 
522
                            self.client_not_found,
 
523
                            dbus_interface=server_interface,
 
524
                            byte_arrays=True))
 
525
        for path, client in mandos_clients.iteritems():
 
526
            client_proxy_object = self.bus.get_object(self.busname,
 
527
                                                      path)
 
528
            self.add_client(MandosClientWidget(server_proxy_object
 
529
                                               =self.mandos_serv,
 
530
                                               proxy_object
 
531
                                               =client_proxy_object,
 
532
                                               properties=client,
 
533
                                               update_hook
 
534
                                               =self.refresh,
 
535
                                               delete_hook
 
536
                                               =self.remove_client,
 
537
                                               logger
 
538
                                               =self.log_message),
 
539
                            path=path)
 
540
    
 
541
    def client_not_found(self, fingerprint, address):
 
542
        self.log_message(("Client with address %s and fingerprint %s"
 
543
                          " could not be found" % (address,
 
544
                                                    fingerprint)))
 
545
    
486
546
    def rebuild(self):
487
547
        """This rebuilds the User Interface.
488
548
        Call this when the widget layout needs to change"""
489
549
        self.uilist = []
490
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
550
        #self.uilist.append(urwid.ListBox(self.clients))
491
551
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
492
552
                                                          clients),
493
 
                                       # header=urwid.Divider(),
 
553
                                       #header=urwid.Divider(),
494
554
                                       header=None,
495
 
                                       footer=urwid.Divider(
496
 
                                           div_char=self.divider)))
 
555
                                       footer=
 
556
                                       urwid.Divider(div_char=
 
557
                                                     self.divider)))
497
558
        if self.log_visible:
498
559
            self.uilist.append(self.logbox)
 
560
            pass
499
561
        self.topwidget = urwid.Pile(self.uilist)
500
 
 
501
 
    def add_log_line(self, markup):
 
562
    
 
563
    def log_message(self, message):
 
564
        timestamp = datetime.datetime.now().isoformat()
 
565
        self.log_message_raw(timestamp + ": " + message)
 
566
    
 
567
    def log_message_raw(self, markup):
 
568
        """Add a log message to the log buffer."""
502
569
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
503
 
        if self.max_log_length:
504
 
            if len(self.log) > self.max_log_length:
505
 
                del self.log[0:(len(self.log) - self.max_log_length)]
506
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
570
        if (self.max_log_length
 
571
            and len(self.log) > self.max_log_length):
 
572
            del self.log[0:len(self.log)-self.max_log_length-1]
 
573
        self.logbox.set_focus(len(self.logbox.body.contents),
507
574
                              coming_from="above")
508
575
        self.refresh()
509
 
 
 
576
    
510
577
    def toggle_log_display(self):
511
578
        """Toggle visibility of the log buffer."""
512
579
        self.log_visible = not self.log_visible
513
580
        self.rebuild()
514
 
        log.debug("Log visibility changed to: %s", self.log_visible)
515
 
 
 
581
        #self.log_message("Log visibility changed to: "
 
582
        #                 + unicode(self.log_visible))
 
583
    
516
584
    def change_log_display(self):
517
585
        """Change type of log display.
518
586
        Currently, this toggles wrapping of text lines."""
522
590
            self.log_wrap = "clip"
523
591
        for textwidget in self.log:
524
592
            textwidget.set_wrap_mode(self.log_wrap)
525
 
        log.debug("Wrap mode: %s", self.log_wrap)
526
 
 
527
 
    def find_and_remove_client(self, path, interfaces):
 
593
        #self.log_message("Wrap mode: " + self.log_wrap)
 
594
    
 
595
    def find_and_remove_client(self, path, name):
528
596
        """Find a client by its object path and remove it.
529
 
 
530
 
        This is connected to the InterfacesRemoved signal from the
 
597
        
 
598
        This is connected to the ClientRemoved signal from the
531
599
        Mandos server object."""
532
 
        if client_interface not in interfaces:
533
 
            # Not a Mandos client object; ignore
534
 
            return
535
600
        try:
536
601
            client = self.clients_dict[path]
537
602
        except KeyError:
538
603
            # not found?
539
 
            log.warning("Unknown client %s removed", path)
 
604
            self.log_message("Unknown client %r (%r) removed", name,
 
605
                             path)
540
606
            return
541
607
        client.delete()
542
 
 
543
 
    def add_new_client(self, path, ifs_and_props):
544
 
        """Find a client by its object path and remove it.
545
 
 
546
 
        This is connected to the InterfacesAdded signal from the
547
 
        Mandos server object.
548
 
        """
549
 
        if client_interface not in ifs_and_props:
550
 
            # Not a Mandos client object; ignore
551
 
            return
 
608
    
 
609
    def add_new_client(self, path):
552
610
        client_proxy_object = self.bus.get_object(self.busname, path)
553
 
        self.add_client(MandosClientWidget(
554
 
            server_proxy_object=self.mandos_serv,
555
 
            proxy_object=client_proxy_object,
556
 
            update_hook=self.refresh,
557
 
            delete_hook=self.remove_client,
558
 
            properties=dict(ifs_and_props[client_interface])),
 
611
        self.add_client(MandosClientWidget(server_proxy_object
 
612
                                           =self.mandos_serv,
 
613
                                           proxy_object
 
614
                                           =client_proxy_object,
 
615
                                           update_hook
 
616
                                           =self.refresh,
 
617
                                           delete_hook
 
618
                                           =self.remove_client,
 
619
                                           logger
 
620
                                           =self.log_message),
559
621
                        path=path)
560
 
 
 
622
    
561
623
    def add_client(self, client, path=None):
562
624
        self.clients.append(client)
563
625
        if path is None:
564
626
            path = client.proxy.object_path
565
627
        self.clients_dict[path] = client
566
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
628
        self.clients.sort(None, lambda c: c.properties["Name"])
567
629
        self.refresh()
568
 
 
 
630
    
569
631
    def remove_client(self, client, path=None):
570
632
        self.clients.remove(client)
571
633
        if path is None:
572
634
            path = client.proxy.object_path
573
635
        del self.clients_dict[path]
 
636
        if not self.clients_dict:
 
637
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
638
            # is completely emptied, we need to recreate it.
 
639
            self.clients = urwid.SimpleListWalker([])
 
640
            self.rebuild()
574
641
        self.refresh()
575
 
 
 
642
    
576
643
    def refresh(self):
577
644
        """Redraw the screen"""
578
645
        canvas = self.topwidget.render(self.size, focus=True)
579
646
        self.screen.draw_screen(self.size, canvas)
580
 
 
 
647
    
581
648
    def run(self):
582
649
        """Start the main loop and exit when it's done."""
583
 
        log.addHandler(self.loghandler)
584
 
        self.orig_log_propagate = log.propagate
585
 
        log.propagate = False
586
 
        self.orig_log_level = log.level
587
 
        log.setLevel("INFO")
588
 
        self.bus = dbus.SystemBus()
589
 
        mandos_dbus_objc = self.bus.get_object(
590
 
            self.busname, "/", follow_name_owner_changes=True)
591
 
        self.mandos_serv = dbus.Interface(
592
 
            mandos_dbus_objc, dbus_interface=server_interface)
593
 
        try:
594
 
            mandos_clients = (self.mandos_serv
595
 
                              .GetAllClientsWithProperties())
596
 
            if not mandos_clients:
597
 
                log.warning("Note: Server has no clients.")
598
 
        except dbus.exceptions.DBusException:
599
 
            log.warning("Note: No Mandos server running.")
600
 
            mandos_clients = dbus.Dictionary()
601
 
 
602
 
        (self.mandos_serv
603
 
         .connect_to_signal("InterfacesRemoved",
604
 
                            self.find_and_remove_client,
605
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
606
 
                            byte_arrays=True))
607
 
        (self.mandos_serv
608
 
         .connect_to_signal("InterfacesAdded",
609
 
                            self.add_new_client,
610
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
611
 
                            byte_arrays=True))
612
 
        (self.mandos_serv
613
 
         .connect_to_signal("ClientNotFound",
614
 
                            self.client_not_found,
615
 
                            dbus_interface=server_interface,
616
 
                            byte_arrays=True))
617
 
        for path, client in mandos_clients.items():
618
 
            client_proxy_object = self.bus.get_object(self.busname,
619
 
                                                      path)
620
 
            self.add_client(MandosClientWidget(
621
 
                server_proxy_object=self.mandos_serv,
622
 
                proxy_object=client_proxy_object,
623
 
                properties=client,
624
 
                update_hook=self.refresh,
625
 
                delete_hook=self.remove_client),
626
 
                            path=path)
627
 
 
628
650
        self.refresh()
629
 
        self._input_callback_tag = (
630
 
            GLib.io_add_watch(
631
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
632
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
633
 
                glib_safely(self.process_input)))
 
651
        self._input_callback_tag = (gobject.io_add_watch
 
652
                                    (sys.stdin.fileno(),
 
653
                                     gobject.IO_IN,
 
654
                                     self.process_input))
634
655
        self.main_loop.run()
635
656
        # Main loop has finished, we should close everything now
636
 
        GLib.source_remove(self._input_callback_tag)
637
 
        with warnings.catch_warnings():
638
 
            warnings.simplefilter("ignore", BytesWarning)
639
 
            self.screen.stop()
640
 
 
 
657
        gobject.source_remove(self._input_callback_tag)
 
658
        self.screen.stop()
 
659
    
641
660
    def stop(self):
642
661
        self.main_loop.quit()
643
 
        log.removeHandler(self.loghandler)
644
 
        log.propagate = self.orig_log_propagate
645
 
 
 
662
    
646
663
    def process_input(self, source, condition):
647
664
        keys = self.screen.get_input()
648
 
        translations = {"ctrl n": "down",       # Emacs
649
 
                        "ctrl p": "up",         # Emacs
650
 
                        "ctrl v": "page down",  # Emacs
651
 
                        "meta v": "page up",    # Emacs
652
 
                        " ": "page down",       # less
653
 
                        "f": "page down",       # less
654
 
                        "b": "page up",         # less
655
 
                        "j": "down",            # vi
656
 
                        "k": "up",              # vi
657
 
                        }
 
665
        translations = { "ctrl n": "down",      # Emacs
 
666
                         "ctrl p": "up",        # Emacs
 
667
                         "ctrl v": "page down", # Emacs
 
668
                         "meta v": "page up",   # Emacs
 
669
                         " ": "page down",      # less
 
670
                         "f": "page down",      # less
 
671
                         "b": "page up",        # less
 
672
                         "j": "down",           # vi
 
673
                         "k": "up",             # vi
 
674
                         }
658
675
        for key in keys:
659
676
            try:
660
677
                key = translations[key]
661
678
            except KeyError:    # :-)
662
679
                pass
663
 
 
 
680
            
664
681
            if key == "q" or key == "Q":
665
682
                self.stop()
666
683
                break
667
684
            elif key == "window resize":
668
685
                self.size = self.screen.get_cols_rows()
669
686
                self.refresh()
670
 
            elif key == "ctrl l":
671
 
                self.screen.clear()
 
687
            elif key == "\f":  # Ctrl-L
672
688
                self.refresh()
673
689
            elif key == "l" or key == "D":
674
690
                self.toggle_log_display()
680
696
                if not self.log_visible:
681
697
                    self.log_visible = True
682
698
                    self.rebuild()
683
 
                self.add_log_line(("bold",
684
 
                                   "  ".join(("q: Quit",
685
 
                                              "?: Help",
686
 
                                              "l: Log window toggle",
687
 
                                              "TAB: Switch window",
688
 
                                              "w: Wrap (log lines)",
689
 
                                              "v: Toggle verbose log",
690
 
                                   ))))
691
 
                self.add_log_line(("bold",
692
 
                                   "  ".join(("Clients:",
693
 
                                              "+: Enable",
694
 
                                              "-: Disable",
695
 
                                              "R: Remove",
696
 
                                              "s: Start new checker",
697
 
                                              "S: Stop checker",
698
 
                                              "C: Checker OK",
699
 
                                              "a: Approve",
700
 
                                              "d: Deny",
701
 
                                   ))))
 
699
                self.log_message_raw(("bold",
 
700
                                      "  ".
 
701
                                      join(("q: Quit",
 
702
                                            "?: Help",
 
703
                                            "l: Log window toggle",
 
704
                                            "TAB: Switch window",
 
705
                                            "w: Wrap (log)"))))
 
706
                self.log_message_raw(("bold",
 
707
                                      "  "
 
708
                                      .join(("Clients:",
 
709
                                             "+: Enable",
 
710
                                             "-: Disable",
 
711
                                             "R: Remove",
 
712
                                             "s: Start new checker",
 
713
                                             "S: Stop checker",
 
714
                                             "C: Checker OK",
 
715
                                             "a: Approve",
 
716
                                             "d: Deny"))))
702
717
                self.refresh()
703
718
            elif key == "tab":
704
719
                if self.topwidget.get_focus() is self.logbox:
706
721
                else:
707
722
                    self.topwidget.set_focus(self.logbox)
708
723
                self.refresh()
709
 
            elif key == "v":
710
 
                if log.level < logging.INFO:
711
 
                    log.setLevel(logging.INFO)
712
 
                    log.info("Verbose mode: Off")
713
 
                else:
714
 
                    log.setLevel(logging.NOTSET)
715
 
                    log.info("Verbose mode: On")
716
 
            # elif (key == "end" or key == "meta >" or key == "G"
717
 
            #       or key == ">"):
718
 
            #     pass            # xxx end-of-buffer
719
 
            # elif (key == "home" or key == "meta <" or key == "g"
720
 
            #       or key == "<"):
721
 
            #     pass            # xxx beginning-of-buffer
722
 
            # elif key == "ctrl e" or key == "$":
723
 
            #     pass            # xxx move-end-of-line
724
 
            # elif key == "ctrl a" or key == "^":
725
 
            #     pass            # xxx move-beginning-of-line
726
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
727
 
            #     pass            # xxx left
728
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
729
 
            #     pass            # xxx right
730
 
            # elif key == "a":
731
 
            #     pass            # scroll up log
732
 
            # elif key == "z":
733
 
            #     pass            # scroll down log
 
724
            #elif (key == "end" or key == "meta >" or key == "G"
 
725
            #      or key == ">"):
 
726
            #    pass            # xxx end-of-buffer
 
727
            #elif (key == "home" or key == "meta <" or key == "g"
 
728
            #      or key == "<"):
 
729
            #    pass            # xxx beginning-of-buffer
 
730
            #elif key == "ctrl e" or key == "$":
 
731
            #    pass            # xxx move-end-of-line
 
732
            #elif key == "ctrl a" or key == "^":
 
733
            #    pass            # xxx move-beginning-of-line
 
734
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
735
            #    pass            # xxx left
 
736
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
737
            #    pass            # xxx right
 
738
            #elif key == "a":
 
739
            #    pass            # scroll up log
 
740
            #elif key == "z":
 
741
            #    pass            # scroll down log
734
742
            elif self.topwidget.selectable():
735
743
                self.topwidget.keypress(self.size, key)
736
744
                self.refresh()
737
745
        return True
738
746
 
739
 
 
740
 
class UILogHandler(logging.Handler):
741
 
    def __init__(self, ui, *args, **kwargs):
742
 
        self.ui = ui
743
 
        super(UILogHandler, self).__init__(*args, **kwargs)
744
 
        self.setFormatter(
745
 
            logging.Formatter("%(asctime)s: %(message)s"))
746
 
    def emit(self, record):
747
 
        msg = self.format(record)
748
 
        if record.levelno > logging.INFO:
749
 
            msg = ("bold", msg)
750
 
        self.ui.add_log_line(msg)
751
 
 
752
 
 
753
747
ui = UserInterface()
754
748
try:
755
749
    ui.run()
756
750
except KeyboardInterrupt:
757
 
    with warnings.catch_warnings():
758
 
        warnings.filterwarnings("ignore", "", BytesWarning)
759
 
        ui.screen.stop()
760
 
except Exception:
761
 
    with warnings.catch_warnings():
762
 
        warnings.filterwarnings("ignore", "", BytesWarning)
763
 
        ui.screen.stop()
 
751
    ui.screen.stop()
 
752
except Exception, e:
 
753
    ui.log_message(unicode(e))
 
754
    ui.screen.stop()
764
755
    raise