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  • Committer: Teddy Hogeborn
  • Date: 2019-11-16 15:56:49 UTC
  • Revision ID: teddy@recompile.se-20191116155649-5uep6eubrwbbbomq
Documentation fix: Correct example in password-agent(8mandos)

* dracut-module/password-agent.xml (EXAMPLE): Fix the example using
  the "default location" of mandos-client to actually use the default.

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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 © 2009-2013 Teddy Hogeborn
7
 
# Copyright © 2009-2013 Björn Påhlsson
8
 
# 
9
 
# This program is free software: you can redistribute it and/or modify
10
 
# it under the terms of the GNU General Public License as published by
 
5
#
 
6
# Copyright © 2009-2019 Teddy Hogeborn
 
7
# Copyright © 2009-2019 Björn Påhlsson
 
8
#
 
9
# This file is part of Mandos.
 
10
#
 
11
# Mandos is free software: you can redistribute it and/or modify it
 
12
# under the terms of the GNU General Public License as published by
11
13
# the Free Software Foundation, either version 3 of the License, or
12
14
# (at your option) any later version.
13
15
#
14
 
#     This program is distributed in the hope that it will be useful,
15
 
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
 
16
#     Mandos is distributed in the hope that it will be useful, but
 
17
#     WITHOUT ANY WARRANTY; without even the implied warranty of
16
18
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
19
#     GNU General Public License for more details.
18
 
# 
 
20
#
19
21
# You should have received a copy of the GNU General Public License
20
 
# along with this program.  If not, see
21
 
# <http://www.gnu.org/licenses/>.
22
 
# 
 
22
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
23
#
23
24
# Contact the authors at <mandos@recompile.se>.
24
 
# 
 
25
#
25
26
 
26
27
from __future__ import (division, absolute_import, print_function,
27
28
                        unicode_literals)
32
33
 
33
34
import sys
34
35
import os
35
 
import signal
36
 
 
 
36
import warnings
37
37
import datetime
 
38
import locale
 
39
import logging
38
40
 
39
41
import urwid.curses_display
40
42
import urwid
41
43
 
42
44
from dbus.mainloop.glib import DBusGMainLoop
43
 
try:
44
 
    import gobject
45
 
except ImportError:
46
 
    from gi.repository import GObject as gobject
 
45
from gi.repository import GLib
47
46
 
48
47
import dbus
49
48
 
50
 
import locale
51
 
 
52
 
if sys.version_info[0] == 2:
 
49
if sys.version_info.major == 2:
53
50
    str = unicode
54
51
 
55
 
locale.setlocale(locale.LC_ALL, '')
56
 
 
57
 
import logging
58
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
52
log = logging.getLogger(os.path.basename(sys.argv[0]))
 
53
logging.basicConfig(level="NOTSET", # Show all messages
 
54
                    format="%(message)s") # Show basic log messages
 
55
 
 
56
logging.captureWarnings(True)   # Show warnings via the logging system
 
57
 
 
58
locale.setlocale(locale.LC_ALL, "")
 
59
 
 
60
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
59
61
 
60
62
# Some useful constants
61
 
domain = 'se.recompile'
62
 
server_interface = domain + '.Mandos'
63
 
client_interface = domain + '.Mandos.Client'
64
 
version = "1.6.2"
 
63
domain = "se.recompile"
 
64
server_interface = domain + ".Mandos"
 
65
client_interface = domain + ".Mandos.Client"
 
66
version = "1.8.9"
 
67
 
 
68
try:
 
69
    dbus.OBJECT_MANAGER_IFACE
 
70
except AttributeError:
 
71
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
72
 
65
73
 
66
74
def isoformat_to_datetime(iso):
67
75
    "Parse an ISO 8601 date string to a datetime.datetime()"
76
84
                             int(day),
77
85
                             int(hour),
78
86
                             int(minute),
79
 
                             int(second),           # Whole seconds
80
 
                             int(fraction*1000000)) # Microseconds
 
87
                             int(second),            # Whole seconds
 
88
                             int(fraction*1000000))  # Microseconds
 
89
 
81
90
 
82
91
class MandosClientPropertyCache(object):
83
92
    """This wraps a Mandos Client D-Bus proxy object, caches the
85
94
    changed.
86
95
    """
87
96
    def __init__(self, proxy_object=None, properties=None, **kwargs):
88
 
        self.proxy = proxy_object # Mandos Client proxy object
 
97
        self.proxy = proxy_object  # Mandos Client proxy object
89
98
        self.properties = dict() if properties is None else properties
90
99
        self.property_changed_match = (
91
 
            self.proxy.connect_to_signal("PropertyChanged",
92
 
                                         self._property_changed,
93
 
                                         client_interface,
 
100
            self.proxy.connect_to_signal("PropertiesChanged",
 
101
                                         self.properties_changed,
 
102
                                         dbus.PROPERTIES_IFACE,
94
103
                                         byte_arrays=True))
95
 
        
 
104
 
96
105
        if properties is None:
97
 
            self.properties.update(
98
 
                self.proxy.GetAll(client_interface,
99
 
                                  dbus_interface
100
 
                                  = dbus.PROPERTIES_IFACE))
101
 
        
 
106
            self.properties.update(self.proxy.GetAll(
 
107
                client_interface,
 
108
                dbus_interface=dbus.PROPERTIES_IFACE))
 
109
 
102
110
        super(MandosClientPropertyCache, self).__init__(**kwargs)
103
 
    
104
 
    def _property_changed(self, property, value):
105
 
        """Helper which takes positional arguments"""
106
 
        return self.property_changed(property=property, value=value)
107
 
    
108
 
    def property_changed(self, property=None, value=None):
109
 
        """This is called whenever we get a PropertyChanged signal
110
 
        It updates the changed property in the "properties" dict.
 
111
 
 
112
    def properties_changed(self, interface, properties, invalidated):
 
113
        """This is called whenever we get a PropertiesChanged signal
 
114
        It updates the changed properties in the "properties" dict.
111
115
        """
112
116
        # Update properties dict with new value
113
 
        self.properties[property] = value
114
 
    
 
117
        if interface == client_interface:
 
118
            self.properties.update(properties)
 
119
 
115
120
    def delete(self):
116
121
        self.property_changed_match.remove()
117
122
 
119
124
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
120
125
    """A Mandos Client which is visible on the screen.
121
126
    """
122
 
    
 
127
 
123
128
    def __init__(self, server_proxy_object=None, update_hook=None,
124
 
                 delete_hook=None, logger=None, **kwargs):
 
129
                 delete_hook=None, **kwargs):
125
130
        # Called on update
126
131
        self.update_hook = update_hook
127
132
        # Called on delete
128
133
        self.delete_hook = delete_hook
129
134
        # Mandos Server proxy object
130
135
        self.server_proxy_object = server_proxy_object
131
 
        # Logger
132
 
        self.logger = logger
133
 
        
 
136
 
134
137
        self._update_timer_callback_tag = None
135
 
        
 
138
 
136
139
        # The widget shown normally
137
140
        self._text_widget = urwid.Text("")
138
141
        # The widget shown when we have focus
140
143
        super(MandosClientWidget, self).__init__(**kwargs)
141
144
        self.update()
142
145
        self.opened = False
143
 
        
 
146
 
144
147
        self.match_objects = (
145
148
            self.proxy.connect_to_signal("CheckerCompleted",
146
149
                                         self.checker_completed,
162
165
                                         self.rejected,
163
166
                                         client_interface,
164
167
                                         byte_arrays=True))
165
 
        #self.logger('Created client {0}'
166
 
        #            .format(self.properties["Name"]))
167
 
    
 
168
        log.debug("Created client %s", self.properties["Name"])
 
169
 
168
170
    def using_timer(self, flag):
169
171
        """Call this method with True or False when timer should be
170
172
        activated or deactivated.
171
173
        """
172
174
        if flag and self._update_timer_callback_tag is None:
173
175
            # Will update the shown timer value every second
174
 
            self._update_timer_callback_tag = (gobject.timeout_add
175
 
                                               (1000,
176
 
                                                self.update_timer))
 
176
            self._update_timer_callback_tag = (
 
177
                GLib.timeout_add(1000,
 
178
                                 glib_safely(self.update_timer)))
177
179
        elif not (flag or self._update_timer_callback_tag is None):
178
 
            gobject.source_remove(self._update_timer_callback_tag)
 
180
            GLib.source_remove(self._update_timer_callback_tag)
179
181
            self._update_timer_callback_tag = None
180
 
    
 
182
 
181
183
    def checker_completed(self, exitstatus, condition, command):
182
184
        if exitstatus == 0:
 
185
            log.debug('Checker for client %s (command "%s")'
 
186
                      " succeeded", self.properties["Name"], command)
183
187
            self.update()
184
188
            return
185
189
        # Checker failed
186
190
        if os.WIFEXITED(condition):
187
 
            self.logger('Checker for client {0} (command "{1}")'
188
 
                        ' failed with exit code {2}'
189
 
                        .format(self.properties["Name"], command,
190
 
                                os.WEXITSTATUS(condition)))
 
191
            log.info('Checker for client %s (command "%s") failed'
 
192
                     " with exit code %d", self.properties["Name"],
 
193
                     command, os.WEXITSTATUS(condition))
191
194
        elif os.WIFSIGNALED(condition):
192
 
            self.logger('Checker for client {0} (command "{1}") was'
193
 
                        ' killed by signal {2}'
194
 
                        .format(self.properties["Name"], command,
195
 
                                os.WTERMSIG(condition)))
196
 
        elif os.WCOREDUMP(condition):
197
 
            self.logger('Checker for client {0} (command "{1}")'
198
 
                        ' dumped core'
199
 
                        .format(self.properties["Name"], command))
200
 
        else:
201
 
            self.logger('Checker for client {0} completed'
202
 
                        ' mysteriously'
203
 
                        .format(self.properties["Name"]))
 
195
            log.info('Checker for client %s (command "%s") was'
 
196
                     " killed by signal %d", self.properties["Name"],
 
197
                     command, os.WTERMSIG(condition))
204
198
        self.update()
205
 
    
 
199
 
206
200
    def checker_started(self, command):
207
 
        """Server signals that a checker started. This could be useful
208
 
           to log in the future. """
209
 
        #self.logger('Client {0} started checker "{1}"'
210
 
        #            .format(self.properties["Name"],
211
 
        #                    str(command)))
212
 
        pass
213
 
    
 
201
        """Server signals that a checker started."""
 
202
        log.debug('Client %s started checker "%s"',
 
203
                  self.properties["Name"], command)
 
204
 
214
205
    def got_secret(self):
215
 
        self.logger('Client {0} received its secret'
216
 
                    .format(self.properties["Name"]))
217
 
    
 
206
        log.info("Client %s received its secret",
 
207
                 self.properties["Name"])
 
208
 
218
209
    def need_approval(self, timeout, default):
219
210
        if not default:
220
 
            message = 'Client {0} needs approval within {1} seconds'
 
211
            message = "Client %s needs approval within %f seconds"
221
212
        else:
222
 
            message = 'Client {0} will get its secret in {1} seconds'
223
 
        self.logger(message.format(self.properties["Name"],
224
 
                                   timeout/1000))
225
 
    
 
213
            message = "Client %s will get its secret in %f seconds"
 
214
        log.info(message, self.properties["Name"], timeout/1000)
 
215
 
226
216
    def rejected(self, reason):
227
 
        self.logger('Client {0} was rejected; reason: {1}'
228
 
                    .format(self.properties["Name"], reason))
229
 
    
 
217
        log.info("Client %s was rejected; reason: %s",
 
218
                 self.properties["Name"], reason)
 
219
 
230
220
    def selectable(self):
231
221
        """Make this a "selectable" widget.
232
222
        This overrides the method from urwid.FlowWidget."""
233
223
        return True
234
 
    
 
224
 
235
225
    def rows(self, maxcolrow, focus=False):
236
226
        """How many rows this widget will occupy might depend on
237
227
        whether we have focus or not.
238
228
        This overrides the method from urwid.FlowWidget"""
239
229
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
240
 
    
 
230
 
241
231
    def current_widget(self, focus=False):
242
232
        if focus or self.opened:
243
233
            return self._focus_widget
244
234
        return self._widget
245
 
    
 
235
 
246
236
    def update(self):
247
237
        "Called when what is visible on the screen should be updated."
248
238
        # How to add standout mode to a style
249
 
        with_standout = { "normal": "standout",
250
 
                          "bold": "bold-standout",
251
 
                          "underline-blink":
252
 
                              "underline-blink-standout",
253
 
                          "bold-underline-blink":
254
 
                              "bold-underline-blink-standout",
255
 
                          }
256
 
        
 
239
        with_standout = {"normal": "standout",
 
240
                         "bold": "bold-standout",
 
241
                         "underline-blink":
 
242
                         "underline-blink-standout",
 
243
                         "bold-underline-blink":
 
244
                         "bold-underline-blink-standout",
 
245
                         }
 
246
 
257
247
        # Rebuild focus and non-focus widgets using current properties
258
 
        
 
248
 
259
249
        # Base part of a client. Name!
260
 
        base = '{name}: '.format(name=self.properties["Name"])
 
250
        base = "{name}: ".format(name=self.properties["Name"])
261
251
        if not self.properties["Enabled"]:
262
252
            message = "DISABLED"
263
253
            self.using_timer(False)
264
254
        elif self.properties["ApprovalPending"]:
265
 
            timeout = datetime.timedelta(milliseconds
266
 
                                         = self.properties
267
 
                                         ["ApprovalDelay"])
 
255
            timeout = datetime.timedelta(
 
256
                milliseconds=self.properties["ApprovalDelay"])
268
257
            last_approval_request = isoformat_to_datetime(
269
258
                self.properties["LastApprovalRequest"])
270
259
            if last_approval_request is not None:
274
263
            else:
275
264
                timer = datetime.timedelta()
276
265
            if self.properties["ApprovedByDefault"]:
277
 
                message = "Approval in {0}. (d)eny?"
 
266
                message = "Approval in {}. (d)eny?"
278
267
            else:
279
 
                message = "Denial in {0}. (a)pprove?"
 
268
                message = "Denial in {}. (a)pprove?"
280
269
            message = message.format(str(timer).rsplit(".", 1)[0])
281
270
            self.using_timer(True)
282
271
        elif self.properties["LastCheckerStatus"] != 0:
286
275
                timer = datetime.timedelta(0)
287
276
            else:
288
277
                expires = (datetime.datetime.strptime
289
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
278
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
290
279
                timer = max(expires - datetime.datetime.utcnow(),
291
280
                            datetime.timedelta())
292
 
            message = ('A checker has failed! Time until client'
293
 
                       ' gets disabled: {0}'
 
281
            message = ("A checker has failed! Time until client"
 
282
                       " gets disabled: {}"
294
283
                       .format(str(timer).rsplit(".", 1)[0]))
295
284
            self.using_timer(True)
296
285
        else:
297
286
            message = "enabled"
298
287
            self.using_timer(False)
299
 
        self._text = "{0}{1}".format(base, message)
300
 
        
 
288
        self._text = "{}{}".format(base, message)
 
289
 
301
290
        if not urwid.supports_unicode():
302
291
            self._text = self._text.encode("ascii", "replace")
303
292
        textlist = [("normal", self._text)]
313
302
        # Run update hook, if any
314
303
        if self.update_hook is not None:
315
304
            self.update_hook()
316
 
    
 
305
 
317
306
    def update_timer(self):
318
 
        """called by gobject. Will indefinitely loop until
319
 
        gobject.source_remove() on tag is called"""
 
307
        """called by GLib. Will indefinitely loop until
 
308
        GLib.source_remove() on tag is called
 
309
        """
320
310
        self.update()
321
311
        return True             # Keep calling this
322
 
    
 
312
 
323
313
    def delete(self, **kwargs):
324
314
        if self._update_timer_callback_tag is not None:
325
 
            gobject.source_remove(self._update_timer_callback_tag)
 
315
            GLib.source_remove(self._update_timer_callback_tag)
326
316
            self._update_timer_callback_tag = None
327
317
        for match in self.match_objects:
328
318
            match.remove()
330
320
        if self.delete_hook is not None:
331
321
            self.delete_hook(self)
332
322
        return super(MandosClientWidget, self).delete(**kwargs)
333
 
    
 
323
 
334
324
    def render(self, maxcolrow, focus=False):
335
325
        """Render differently if we have focus.
336
326
        This overrides the method from urwid.FlowWidget"""
337
327
        return self.current_widget(focus).render(maxcolrow,
338
328
                                                 focus=focus)
339
 
    
 
329
 
340
330
    def keypress(self, maxcolrow, key):
341
331
        """Handle keys.
342
332
        This overrides the method from urwid.FlowWidget"""
343
333
        if key == "+":
344
 
            self.proxy.Enable(dbus_interface = client_interface,
345
 
                              ignore_reply=True)
 
334
            self.proxy.Set(client_interface, "Enabled",
 
335
                           dbus.Boolean(True), ignore_reply=True,
 
336
                           dbus_interface=dbus.PROPERTIES_IFACE)
346
337
        elif key == "-":
347
 
            self.proxy.Disable(dbus_interface = client_interface,
348
 
                               ignore_reply=True)
 
338
            self.proxy.Set(client_interface, "Enabled", False,
 
339
                           ignore_reply=True,
 
340
                           dbus_interface=dbus.PROPERTIES_IFACE)
349
341
        elif key == "a":
350
342
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
351
 
                               dbus_interface = client_interface,
 
343
                               dbus_interface=client_interface,
352
344
                               ignore_reply=True)
353
345
        elif key == "d":
354
346
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
355
 
                                  dbus_interface = client_interface,
 
347
                               dbus_interface=client_interface,
356
348
                               ignore_reply=True)
357
349
        elif key == "R" or key == "_" or key == "ctrl k":
358
350
            self.server_proxy_object.RemoveClient(self.proxy
359
351
                                                  .object_path,
360
352
                                                  ignore_reply=True)
361
353
        elif key == "s":
362
 
            self.proxy.StartChecker(dbus_interface = client_interface,
363
 
                                    ignore_reply=True)
 
354
            self.proxy.Set(client_interface, "CheckerRunning",
 
355
                           dbus.Boolean(True), ignore_reply=True,
 
356
                           dbus_interface=dbus.PROPERTIES_IFACE)
364
357
        elif key == "S":
365
 
            self.proxy.StopChecker(dbus_interface = client_interface,
366
 
                                   ignore_reply=True)
 
358
            self.proxy.Set(client_interface, "CheckerRunning",
 
359
                           dbus.Boolean(False), ignore_reply=True,
 
360
                           dbus_interface=dbus.PROPERTIES_IFACE)
367
361
        elif key == "C":
368
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
362
            self.proxy.CheckedOK(dbus_interface=client_interface,
369
363
                                 ignore_reply=True)
370
364
        # xxx
371
365
#         elif key == "p" or key == "=":
376
370
#             self.open()
377
371
        else:
378
372
            return key
379
 
    
380
 
    def property_changed(self, property=None, **kwargs):
381
 
        """Call self.update() if old value is not new value.
 
373
 
 
374
    def properties_changed(self, interface, properties, invalidated):
 
375
        """Call self.update() if any properties changed.
382
376
        This overrides the method from MandosClientPropertyCache"""
383
 
        property_name = str(property)
384
 
        old_value = self.properties.get(property_name)
385
 
        super(MandosClientWidget, self).property_changed(
386
 
            property=property, **kwargs)
387
 
        if self.properties.get(property_name) != old_value:
 
377
        old_values = {key: self.properties.get(key)
 
378
                      for key in properties.keys()}
 
379
        super(MandosClientWidget, self).properties_changed(
 
380
            interface, properties, invalidated)
 
381
        if any(old_values[key] != self.properties.get(key)
 
382
               for key in old_values):
388
383
            self.update()
389
384
 
390
385
 
 
386
def glib_safely(func, retval=True):
 
387
    def safe_func(*args, **kwargs):
 
388
        try:
 
389
            return func(*args, **kwargs)
 
390
        except Exception:
 
391
            log.exception("")
 
392
            return retval
 
393
    return safe_func
 
394
 
 
395
 
391
396
class ConstrainedListBox(urwid.ListBox):
392
397
    """Like a normal urwid.ListBox, but will consume all "up" or
393
398
    "down" key presses, thus not allowing any containing widgets to
394
399
    use them as an excuse to shift focus away from this widget.
395
400
    """
396
401
    def keypress(self, *args, **kwargs):
397
 
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
402
        ret = (super(ConstrainedListBox, self)
 
403
               .keypress(*args, **kwargs))
398
404
        if ret in ("up", "down"):
399
405
            return
400
406
        return ret
406
412
    """
407
413
    def __init__(self, max_log_length=1000):
408
414
        DBusGMainLoop(set_as_default=True)
409
 
        
 
415
 
410
416
        self.screen = urwid.curses_display.Screen()
411
 
        
 
417
 
412
418
        self.screen.register_palette((
413
419
                ("normal",
414
420
                 "default", "default", None),
419
425
                ("standout",
420
426
                 "standout", "default", "standout"),
421
427
                ("bold-underline-blink",
422
 
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
428
                 "bold,underline,blink", "default",
 
429
                 "bold,underline,blink"),
423
430
                ("bold-standout",
424
431
                 "bold,standout", "default", "bold,standout"),
425
432
                ("underline-blink-standout",
429
436
                 "bold,underline,blink,standout", "default",
430
437
                 "bold,underline,blink,standout"),
431
438
                ))
432
 
        
 
439
 
433
440
        if urwid.supports_unicode():
434
 
            self.divider = "─" # \u2500
435
 
            #self.divider = "━" # \u2501
 
441
            self.divider = "─"  # \u2500
436
442
        else:
437
 
            #self.divider = "-" # \u002d
438
 
            self.divider = "_" # \u005f
439
 
        
 
443
            self.divider = "_"  # \u005f
 
444
 
440
445
        self.screen.start()
441
 
        
 
446
 
442
447
        self.size = self.screen.get_cols_rows()
443
 
        
 
448
 
444
449
        self.clients = urwid.SimpleListWalker([])
445
450
        self.clients_dict = {}
446
 
        
 
451
 
447
452
        # We will add Text widgets to this list
448
 
        self.log = []
 
453
        self.log = urwid.SimpleListWalker([])
449
454
        self.max_log_length = max_log_length
450
 
        
 
455
 
451
456
        # We keep a reference to the log widget so we can remove it
452
457
        # from the ListWalker without it getting destroyed
453
458
        self.logbox = ConstrainedListBox(self.log)
454
 
        
 
459
 
455
460
        # This keeps track of whether self.uilist currently has
456
461
        # self.logbox in it or not
457
462
        self.log_visible = True
458
463
        self.log_wrap = "any"
459
 
        
 
464
 
 
465
        self.loghandler = UILogHandler(self)
 
466
 
460
467
        self.rebuild()
461
 
        self.log_message_raw(("bold",
462
 
                              "Mandos Monitor version " + version))
463
 
        self.log_message_raw(("bold",
464
 
                              "q: Quit  ?: Help"))
465
 
        
466
 
        self.busname = domain + '.Mandos'
467
 
        self.main_loop = gobject.MainLoop()
468
 
    
469
 
    def client_not_found(self, fingerprint, address):
470
 
        self.log_message("Client with address {0} and fingerprint"
471
 
                         " {1} could not be found"
472
 
                         .format(address, fingerprint))
473
 
    
 
468
        self.add_log_line(("bold",
 
469
                           "Mandos Monitor version " + version))
 
470
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
471
 
 
472
        self.busname = domain + ".Mandos"
 
473
        self.main_loop = GLib.MainLoop()
 
474
 
 
475
    def client_not_found(self, key_id, address):
 
476
        log.info("Client with address %s and key ID %s could"
 
477
                 " not be found", address, key_id)
 
478
 
474
479
    def rebuild(self):
475
480
        """This rebuilds the User Interface.
476
481
        Call this when the widget layout needs to change"""
477
482
        self.uilist = []
478
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
483
        # self.uilist.append(urwid.ListBox(self.clients))
479
484
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
480
485
                                                          clients),
481
 
                                       #header=urwid.Divider(),
 
486
                                       # header=urwid.Divider(),
482
487
                                       header=None,
483
 
                                       footer=
484
 
                                       urwid.Divider(div_char=
485
 
                                                     self.divider)))
 
488
                                       footer=urwid.Divider(
 
489
                                           div_char=self.divider)))
486
490
        if self.log_visible:
487
491
            self.uilist.append(self.logbox)
488
492
        self.topwidget = urwid.Pile(self.uilist)
489
 
    
490
 
    def log_message(self, message):
491
 
        """Log message formatted with timestamp"""
492
 
        timestamp = datetime.datetime.now().isoformat()
493
 
        self.log_message_raw(timestamp + ": " + message)
494
 
    
495
 
    def log_message_raw(self, markup):
496
 
        """Add a log message to the log buffer."""
 
493
 
 
494
    def add_log_line(self, markup):
497
495
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
498
 
        if (self.max_log_length
499
 
            and len(self.log) > self.max_log_length):
500
 
            del self.log[0:len(self.log)-self.max_log_length-1]
501
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
496
        if self.max_log_length:
 
497
            if len(self.log) > self.max_log_length:
 
498
                del self.log[0:(len(self.log) - self.max_log_length)]
 
499
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
502
500
                              coming_from="above")
503
501
        self.refresh()
504
 
    
 
502
 
505
503
    def toggle_log_display(self):
506
504
        """Toggle visibility of the log buffer."""
507
505
        self.log_visible = not self.log_visible
508
506
        self.rebuild()
509
 
        #self.log_message("Log visibility changed to: "
510
 
        #                 + str(self.log_visible))
511
 
    
 
507
        log.debug("Log visibility changed to: %s", self.log_visible)
 
508
 
512
509
    def change_log_display(self):
513
510
        """Change type of log display.
514
511
        Currently, this toggles wrapping of text lines."""
518
515
            self.log_wrap = "clip"
519
516
        for textwidget in self.log:
520
517
            textwidget.set_wrap_mode(self.log_wrap)
521
 
        #self.log_message("Wrap mode: " + self.log_wrap)
522
 
    
523
 
    def find_and_remove_client(self, path, name):
 
518
        log.debug("Wrap mode: %s", self.log_wrap)
 
519
 
 
520
    def find_and_remove_client(self, path, interfaces):
524
521
        """Find a client by its object path and remove it.
525
 
        
526
 
        This is connected to the ClientRemoved signal from the
 
522
 
 
523
        This is connected to the InterfacesRemoved signal from the
527
524
        Mandos server object."""
 
525
        if client_interface not in interfaces:
 
526
            # Not a Mandos client object; ignore
 
527
            return
528
528
        try:
529
529
            client = self.clients_dict[path]
530
530
        except KeyError:
531
531
            # not found?
532
 
            self.log_message("Unknown client {0!r} ({1!r}) removed"
533
 
                             .format(name, path))
 
532
            log.warning("Unknown client %s removed", path)
534
533
            return
535
534
        client.delete()
536
 
    
537
 
    def add_new_client(self, path):
 
535
 
 
536
    def add_new_client(self, path, ifs_and_props):
 
537
        """Find a client by its object path and remove it.
 
538
 
 
539
        This is connected to the InterfacesAdded signal from the
 
540
        Mandos server object.
 
541
        """
 
542
        if client_interface not in ifs_and_props:
 
543
            # Not a Mandos client object; ignore
 
544
            return
538
545
        client_proxy_object = self.bus.get_object(self.busname, path)
539
 
        self.add_client(MandosClientWidget(server_proxy_object
540
 
                                           =self.mandos_serv,
541
 
                                           proxy_object
542
 
                                           =client_proxy_object,
543
 
                                           update_hook
544
 
                                           =self.refresh,
545
 
                                           delete_hook
546
 
                                           =self.remove_client,
547
 
                                           logger
548
 
                                           =self.log_message),
 
546
        self.add_client(MandosClientWidget(
 
547
            server_proxy_object=self.mandos_serv,
 
548
            proxy_object=client_proxy_object,
 
549
            update_hook=self.refresh,
 
550
            delete_hook=self.remove_client,
 
551
            properties=dict(ifs_and_props[client_interface])),
549
552
                        path=path)
550
 
    
 
553
 
551
554
    def add_client(self, client, path=None):
552
555
        self.clients.append(client)
553
556
        if path is None:
555
558
        self.clients_dict[path] = client
556
559
        self.clients.sort(key=lambda c: c.properties["Name"])
557
560
        self.refresh()
558
 
    
 
561
 
559
562
    def remove_client(self, client, path=None):
560
563
        self.clients.remove(client)
561
564
        if path is None:
562
565
            path = client.proxy.object_path
563
566
        del self.clients_dict[path]
564
567
        self.refresh()
565
 
    
 
568
 
566
569
    def refresh(self):
567
570
        """Redraw the screen"""
568
571
        canvas = self.topwidget.render(self.size, focus=True)
569
572
        self.screen.draw_screen(self.size, canvas)
570
 
    
 
573
 
571
574
    def run(self):
572
575
        """Start the main loop and exit when it's done."""
 
576
        log.addHandler(self.loghandler)
 
577
        self.orig_log_propagate = log.propagate
 
578
        log.propagate = False
 
579
        self.orig_log_level = log.level
 
580
        log.setLevel("INFO")
573
581
        self.bus = dbus.SystemBus()
574
582
        mandos_dbus_objc = self.bus.get_object(
575
583
            self.busname, "/", follow_name_owner_changes=True)
576
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
577
 
                                          dbus_interface
578
 
                                          = server_interface)
 
584
        self.mandos_serv = dbus.Interface(
 
585
            mandos_dbus_objc, dbus_interface=server_interface)
579
586
        try:
580
587
            mandos_clients = (self.mandos_serv
581
588
                              .GetAllClientsWithProperties())
582
589
            if not mandos_clients:
583
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
590
                log.warning("Note: Server has no clients.")
584
591
        except dbus.exceptions.DBusException:
585
 
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
592
            log.warning("Note: No Mandos server running.")
586
593
            mandos_clients = dbus.Dictionary()
587
 
        
 
594
 
588
595
        (self.mandos_serv
589
 
         .connect_to_signal("ClientRemoved",
 
596
         .connect_to_signal("InterfacesRemoved",
590
597
                            self.find_and_remove_client,
591
 
                            dbus_interface=server_interface,
 
598
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
592
599
                            byte_arrays=True))
593
600
        (self.mandos_serv
594
 
         .connect_to_signal("ClientAdded",
 
601
         .connect_to_signal("InterfacesAdded",
595
602
                            self.add_new_client,
596
 
                            dbus_interface=server_interface,
 
603
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
597
604
                            byte_arrays=True))
598
605
        (self.mandos_serv
599
606
         .connect_to_signal("ClientNotFound",
603
610
        for path, client in mandos_clients.items():
604
611
            client_proxy_object = self.bus.get_object(self.busname,
605
612
                                                      path)
606
 
            self.add_client(MandosClientWidget(server_proxy_object
607
 
                                               =self.mandos_serv,
608
 
                                               proxy_object
609
 
                                               =client_proxy_object,
610
 
                                               properties=client,
611
 
                                               update_hook
612
 
                                               =self.refresh,
613
 
                                               delete_hook
614
 
                                               =self.remove_client,
615
 
                                               logger
616
 
                                               =self.log_message),
 
613
            self.add_client(MandosClientWidget(
 
614
                server_proxy_object=self.mandos_serv,
 
615
                proxy_object=client_proxy_object,
 
616
                properties=client,
 
617
                update_hook=self.refresh,
 
618
                delete_hook=self.remove_client),
617
619
                            path=path)
618
 
        
 
620
 
619
621
        self.refresh()
620
 
        self._input_callback_tag = (gobject.io_add_watch
621
 
                                    (sys.stdin.fileno(),
622
 
                                     gobject.IO_IN,
623
 
                                     self.process_input))
 
622
        self._input_callback_tag = (
 
623
            GLib.io_add_watch(
 
624
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
625
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
626
                glib_safely(self.process_input)))
624
627
        self.main_loop.run()
625
628
        # Main loop has finished, we should close everything now
626
 
        gobject.source_remove(self._input_callback_tag)
627
 
        self.screen.stop()
628
 
    
 
629
        GLib.source_remove(self._input_callback_tag)
 
630
        with warnings.catch_warnings():
 
631
            warnings.simplefilter("ignore", BytesWarning)
 
632
            self.screen.stop()
 
633
 
629
634
    def stop(self):
630
635
        self.main_loop.quit()
631
 
    
 
636
        log.removeHandler(self.loghandler)
 
637
        log.propagate = self.orig_log_propagate
 
638
 
632
639
    def process_input(self, source, condition):
633
640
        keys = self.screen.get_input()
634
 
        translations = { "ctrl n": "down",      # Emacs
635
 
                         "ctrl p": "up",        # Emacs
636
 
                         "ctrl v": "page down", # Emacs
637
 
                         "meta v": "page up",   # Emacs
638
 
                         " ": "page down",      # less
639
 
                         "f": "page down",      # less
640
 
                         "b": "page up",        # less
641
 
                         "j": "down",           # vi
642
 
                         "k": "up",             # vi
643
 
                         }
 
641
        translations = {"ctrl n": "down",       # Emacs
 
642
                        "ctrl p": "up",         # Emacs
 
643
                        "ctrl v": "page down",  # Emacs
 
644
                        "meta v": "page up",    # Emacs
 
645
                        " ": "page down",       # less
 
646
                        "f": "page down",       # less
 
647
                        "b": "page up",         # less
 
648
                        "j": "down",            # vi
 
649
                        "k": "up",              # vi
 
650
                        }
644
651
        for key in keys:
645
652
            try:
646
653
                key = translations[key]
647
654
            except KeyError:    # :-)
648
655
                pass
649
 
            
 
656
 
650
657
            if key == "q" or key == "Q":
651
658
                self.stop()
652
659
                break
653
660
            elif key == "window resize":
654
661
                self.size = self.screen.get_cols_rows()
655
662
                self.refresh()
656
 
            elif key == "\f":  # Ctrl-L
 
663
            elif key == "ctrl l":
 
664
                self.screen.clear()
657
665
                self.refresh()
658
666
            elif key == "l" or key == "D":
659
667
                self.toggle_log_display()
665
673
                if not self.log_visible:
666
674
                    self.log_visible = True
667
675
                    self.rebuild()
668
 
                self.log_message_raw(("bold",
669
 
                                      "  ".
670
 
                                      join(("q: Quit",
671
 
                                            "?: Help",
672
 
                                            "l: Log window toggle",
673
 
                                            "TAB: Switch window",
674
 
                                            "w: Wrap (log)"))))
675
 
                self.log_message_raw(("bold",
676
 
                                      "  "
677
 
                                      .join(("Clients:",
678
 
                                             "+: Enable",
679
 
                                             "-: Disable",
680
 
                                             "R: Remove",
681
 
                                             "s: Start new checker",
682
 
                                             "S: Stop checker",
683
 
                                             "C: Checker OK",
684
 
                                             "a: Approve",
685
 
                                             "d: Deny"))))
 
676
                self.add_log_line(("bold",
 
677
                                   "  ".join(("q: Quit",
 
678
                                              "?: Help",
 
679
                                              "l: Log window toggle",
 
680
                                              "TAB: Switch window",
 
681
                                              "w: Wrap (log lines)",
 
682
                                              "v: Toggle verbose log",
 
683
                                   ))))
 
684
                self.add_log_line(("bold",
 
685
                                   "  ".join(("Clients:",
 
686
                                              "+: Enable",
 
687
                                              "-: Disable",
 
688
                                              "R: Remove",
 
689
                                              "s: Start new checker",
 
690
                                              "S: Stop checker",
 
691
                                              "C: Checker OK",
 
692
                                              "a: Approve",
 
693
                                              "d: Deny",
 
694
                                   ))))
686
695
                self.refresh()
687
696
            elif key == "tab":
688
697
                if self.topwidget.get_focus() is self.logbox:
690
699
                else:
691
700
                    self.topwidget.set_focus(self.logbox)
692
701
                self.refresh()
693
 
            #elif (key == "end" or key == "meta >" or key == "G"
694
 
            #      or key == ">"):
695
 
            #    pass            # xxx end-of-buffer
696
 
            #elif (key == "home" or key == "meta <" or key == "g"
697
 
            #      or key == "<"):
698
 
            #    pass            # xxx beginning-of-buffer
699
 
            #elif key == "ctrl e" or key == "$":
700
 
            #    pass            # xxx move-end-of-line
701
 
            #elif key == "ctrl a" or key == "^":
702
 
            #    pass            # xxx move-beginning-of-line
703
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
704
 
            #    pass            # xxx left
705
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
706
 
            #    pass            # xxx right
707
 
            #elif key == "a":
708
 
            #    pass            # scroll up log
709
 
            #elif key == "z":
710
 
            #    pass            # scroll down log
 
702
            elif key == "v":
 
703
                if log.level < logging.INFO:
 
704
                    log.setLevel(logging.INFO)
 
705
                    log.info("Verbose mode: Off")
 
706
                else:
 
707
                    log.setLevel(logging.NOTSET)
 
708
                    log.info("Verbose mode: On")
 
709
            # elif (key == "end" or key == "meta >" or key == "G"
 
710
            #       or key == ">"):
 
711
            #     pass            # xxx end-of-buffer
 
712
            # elif (key == "home" or key == "meta <" or key == "g"
 
713
            #       or key == "<"):
 
714
            #     pass            # xxx beginning-of-buffer
 
715
            # elif key == "ctrl e" or key == "$":
 
716
            #     pass            # xxx move-end-of-line
 
717
            # elif key == "ctrl a" or key == "^":
 
718
            #     pass            # xxx move-beginning-of-line
 
719
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
720
            #     pass            # xxx left
 
721
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
722
            #     pass            # xxx right
 
723
            # elif key == "a":
 
724
            #     pass            # scroll up log
 
725
            # elif key == "z":
 
726
            #     pass            # scroll down log
711
727
            elif self.topwidget.selectable():
712
728
                self.topwidget.keypress(self.size, key)
713
729
                self.refresh()
714
730
        return True
715
731
 
 
732
 
 
733
class UILogHandler(logging.Handler):
 
734
    def __init__(self, ui, *args, **kwargs):
 
735
        self.ui = ui
 
736
        super(UILogHandler, self).__init__(*args, **kwargs)
 
737
        self.setFormatter(
 
738
            logging.Formatter("%(asctime)s: %(message)s"))
 
739
    def emit(self, record):
 
740
        msg = self.format(record)
 
741
        if record.levelno > logging.INFO:
 
742
            msg = ("bold", msg)
 
743
        self.ui.add_log_line(msg)
 
744
 
 
745
 
716
746
ui = UserInterface()
717
747
try:
718
748
    ui.run()
719
749
except KeyboardInterrupt:
720
 
    ui.screen.stop()
721
 
except Exception as e:
722
 
    ui.log_message(str(e))
723
 
    ui.screen.stop()
 
750
    with warnings.catch_warnings():
 
751
        warnings.filterwarnings("ignore", "", BytesWarning)
 
752
        ui.screen.stop()
 
753
except Exception:
 
754
    with warnings.catch_warnings():
 
755
        warnings.filterwarnings("ignore", "", BytesWarning)
 
756
        ui.screen.stop()
724
757
    raise