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  • Committer: Teddy Hogeborn
  • Date: 2015-01-25 00:02:51 UTC
  • Revision ID: teddy@recompile.se-20150125000251-j2bw50gfq9smqyxe
mandos.xml (SEE ALSO): Update links.

Update link to GnuPG home page, change reference from TLS 1.1 to TLS
1.2, and change to latest RFC for using OpenPGP keys with TLS (and use
its correct title).

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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 © 2009-2014 Teddy Hogeborn
 
7
# Copyright © 2009-2014 Björn Påhlsson
 
8
# 
 
9
# This program is free software: you can redistribute it and/or modify
 
10
# it under the terms of the GNU General Public License as published by
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
 
#
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
 
22
# 
24
23
# Contact the authors at <mandos@recompile.se>.
25
 
#
 
24
# 
 
25
 
26
26
from __future__ import (division, absolute_import, print_function,
27
27
                        unicode_literals)
28
 
 
29
28
try:
30
29
    from future_builtins import *
31
30
except ImportError:
32
31
    pass
33
32
 
34
33
import sys
35
 
import logging
36
34
import os
37
 
import warnings
 
35
 
38
36
import datetime
39
 
import locale
40
37
 
41
38
import urwid.curses_display
42
39
import urwid
43
40
 
44
41
from dbus.mainloop.glib import DBusGMainLoop
45
 
from gi.repository import GLib
 
42
try:
 
43
    import gobject
 
44
except ImportError:
 
45
    from gi.repository import GObject as gobject
46
46
 
47
47
import dbus
48
48
 
 
49
import locale
 
50
 
49
51
if sys.version_info.major == 2:
50
 
    __metaclass__ = type
51
52
    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)
 
53
 
 
54
locale.setlocale(locale.LC_ALL, '')
 
55
 
 
56
import logging
 
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
68
58
 
69
59
# 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
 
 
 
60
domain = 'se.recompile'
 
61
server_interface = domain + '.Mandos'
 
62
client_interface = domain + '.Mandos.Client'
 
63
version = "1.6.9"
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
86
    def __init__(self, proxy_object=None, properties=None, **kwargs):
104
 
        self.proxy = proxy_object  # Mandos Client proxy object
 
87
        self.proxy = proxy_object # Mandos Client proxy object
105
88
        self.properties = dict() if properties is None else properties
106
89
        self.property_changed_match = (
107
90
            self.proxy.connect_to_signal("PropertiesChanged",
108
91
                                         self.properties_changed,
109
92
                                         dbus.PROPERTIES_IFACE,
110
93
                                         byte_arrays=True))
111
 
 
 
94
        
112
95
        if properties is None:
113
 
            self.properties.update(self.proxy.GetAll(
114
 
                client_interface,
115
 
                dbus_interface=dbus.PROPERTIES_IFACE))
116
 
 
 
96
            self.properties.update(
 
97
                self.proxy.GetAll(client_interface,
 
98
                                  dbus_interface
 
99
                                  = dbus.PROPERTIES_IFACE))
 
100
        
117
101
        super(MandosClientPropertyCache, self).__init__(**kwargs)
118
 
 
 
102
    
119
103
    def properties_changed(self, interface, properties, invalidated):
120
104
        """This is called whenever we get a PropertiesChanged signal
121
105
        It updates the changed properties in the "properties" dict.
122
106
        """
123
107
        # Update properties dict with new value
124
 
        if interface == client_interface:
125
 
            self.properties.update(properties)
126
 
 
 
108
        self.properties.update(properties)
 
109
    
127
110
    def delete(self):
128
111
        self.property_changed_match.remove()
129
112
 
130
113
 
131
 
class MandosClientWidget(MandosClientPropertyCache, urwid.Widget):
 
114
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
132
115
    """A Mandos Client which is visible on the screen.
133
116
    """
134
 
 
135
 
    _sizing = frozenset(["flow"])
136
 
 
 
117
    
137
118
    def __init__(self, server_proxy_object=None, update_hook=None,
138
 
                 delete_hook=None, **kwargs):
 
119
                 delete_hook=None, logger=None, **kwargs):
139
120
        # Called on update
140
121
        self.update_hook = update_hook
141
122
        # Called on delete
142
123
        self.delete_hook = delete_hook
143
124
        # Mandos Server proxy object
144
125
        self.server_proxy_object = server_proxy_object
145
 
 
 
126
        # Logger
 
127
        self.logger = logger
 
128
        
146
129
        self._update_timer_callback_tag = None
147
 
 
 
130
        
148
131
        # The widget shown normally
149
132
        self._text_widget = urwid.Text("")
150
133
        # The widget shown when we have focus
152
135
        super(MandosClientWidget, self).__init__(**kwargs)
153
136
        self.update()
154
137
        self.opened = False
155
 
 
 
138
        
156
139
        self.match_objects = (
157
140
            self.proxy.connect_to_signal("CheckerCompleted",
158
141
                                         self.checker_completed,
174
157
                                         self.rejected,
175
158
                                         client_interface,
176
159
                                         byte_arrays=True))
177
 
        log.debug("Created client %s", self.properties["Name"])
178
 
 
 
160
        self.logger('Created client {}'
 
161
                    .format(self.properties["Name"]), level=0)
 
162
    
179
163
    def using_timer(self, flag):
180
164
        """Call this method with True or False when timer should be
181
165
        activated or deactivated.
182
166
        """
183
167
        if flag and self._update_timer_callback_tag is None:
184
168
            # Will update the shown timer value every second
185
 
            self._update_timer_callback_tag = (
186
 
                GLib.timeout_add(1000,
187
 
                                 glib_safely(self.update_timer)))
 
169
            self._update_timer_callback_tag = (gobject.timeout_add
 
170
                                               (1000,
 
171
                                                self.update_timer))
188
172
        elif not (flag or self._update_timer_callback_tag is None):
189
 
            GLib.source_remove(self._update_timer_callback_tag)
 
173
            gobject.source_remove(self._update_timer_callback_tag)
190
174
            self._update_timer_callback_tag = None
191
 
 
 
175
    
192
176
    def checker_completed(self, exitstatus, condition, command):
193
177
        if exitstatus == 0:
194
 
            log.debug('Checker for client %s (command "%s")'
195
 
                      " succeeded", self.properties["Name"], command)
 
178
            self.logger('Checker for client {} (command "{}")'
 
179
                        ' succeeded'.format(self.properties["Name"],
 
180
                                            command), level=0)
196
181
            self.update()
197
182
            return
198
183
        # Checker failed
199
184
        if os.WIFEXITED(condition):
200
 
            log.info('Checker for client %s (command "%s") failed'
201
 
                     " with exit code %d", self.properties["Name"],
202
 
                     command, os.WEXITSTATUS(condition))
 
185
            self.logger('Checker for client {} (command "{}") failed'
 
186
                        ' with exit code {}'
 
187
                        .format(self.properties["Name"], command,
 
188
                                os.WEXITSTATUS(condition)))
203
189
        elif os.WIFSIGNALED(condition):
204
 
            log.info('Checker for client %s (command "%s") was'
205
 
                     " killed by signal %d", self.properties["Name"],
206
 
                     command, os.WTERMSIG(condition))
 
190
            self.logger('Checker for client {} (command "{}") was'
 
191
                        ' killed by signal {}'
 
192
                        .format(self.properties["Name"], command,
 
193
                                os.WTERMSIG(condition)))
 
194
        elif os.WCOREDUMP(condition):
 
195
            self.logger('Checker for client {} (command "{}") dumped'
 
196
                        ' core'.format(self.properties["Name"],
 
197
                                       command))
 
198
        else:
 
199
            self.logger('Checker for client {} completed'
 
200
                        ' mysteriously'
 
201
                        .format(self.properties["Name"]))
207
202
        self.update()
208
 
 
 
203
    
209
204
    def checker_started(self, command):
210
205
        """Server signals that a checker started."""
211
 
        log.debug('Client %s started checker "%s"',
212
 
                  self.properties["Name"], command)
213
 
 
 
206
        self.logger('Client {} started checker "{}"'
 
207
                    .format(self.properties["Name"],
 
208
                            command), level=0)
 
209
    
214
210
    def got_secret(self):
215
 
        log.info("Client %s received its secret",
216
 
                 self.properties["Name"])
217
 
 
 
211
        self.logger('Client {} received its secret'
 
212
                    .format(self.properties["Name"]))
 
213
    
218
214
    def need_approval(self, timeout, default):
219
215
        if not default:
220
 
            message = "Client %s needs approval within %f seconds"
 
216
            message = 'Client {} needs approval within {} seconds'
221
217
        else:
222
 
            message = "Client %s will get its secret in %f seconds"
223
 
        log.info(message, self.properties["Name"], timeout/1000)
224
 
 
 
218
            message = 'Client {} will get its secret in {} seconds'
 
219
        self.logger(message.format(self.properties["Name"],
 
220
                                   timeout/1000))
 
221
    
225
222
    def rejected(self, reason):
226
 
        log.info("Client %s was rejected; reason: %s",
227
 
                 self.properties["Name"], reason)
228
 
 
 
223
        self.logger('Client {} was rejected; reason: {}'
 
224
                    .format(self.properties["Name"], reason))
 
225
    
229
226
    def selectable(self):
230
227
        """Make this a "selectable" widget.
231
 
        This overrides the method from urwid.Widget."""
 
228
        This overrides the method from urwid.FlowWidget."""
232
229
        return True
233
 
 
 
230
    
234
231
    def rows(self, maxcolrow, focus=False):
235
232
        """How many rows this widget will occupy might depend on
236
233
        whether we have focus or not.
237
 
        This overrides the method from urwid.Widget"""
 
234
        This overrides the method from urwid.FlowWidget"""
238
235
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
239
 
 
 
236
    
240
237
    def current_widget(self, focus=False):
241
238
        if focus or self.opened:
242
239
            return self._focus_widget
243
240
        return self._widget
244
 
 
 
241
    
245
242
    def update(self):
246
243
        "Called when what is visible on the screen should be updated."
247
244
        # How to add standout mode to a style
248
 
        with_standout = {"normal": "standout",
249
 
                         "bold": "bold-standout",
250
 
                         "underline-blink":
251
 
                         "underline-blink-standout",
252
 
                         "bold-underline-blink":
253
 
                         "bold-underline-blink-standout",
254
 
                         }
255
 
 
 
245
        with_standout = { "normal": "standout",
 
246
                          "bold": "bold-standout",
 
247
                          "underline-blink":
 
248
                              "underline-blink-standout",
 
249
                          "bold-underline-blink":
 
250
                              "bold-underline-blink-standout",
 
251
                          }
 
252
        
256
253
        # Rebuild focus and non-focus widgets using current properties
257
 
 
 
254
        
258
255
        # Base part of a client. Name!
259
 
        base = "{name}: ".format(name=self.properties["Name"])
 
256
        base = '{name}: '.format(name=self.properties["Name"])
260
257
        if not self.properties["Enabled"]:
261
258
            message = "DISABLED"
262
259
            self.using_timer(False)
263
260
        elif self.properties["ApprovalPending"]:
264
 
            timeout = datetime.timedelta(
265
 
                milliseconds=self.properties["ApprovalDelay"])
 
261
            timeout = datetime.timedelta(milliseconds
 
262
                                         = self.properties
 
263
                                         ["ApprovalDelay"])
266
264
            last_approval_request = isoformat_to_datetime(
267
265
                self.properties["LastApprovalRequest"])
268
266
            if last_approval_request is not None:
284
282
                timer = datetime.timedelta(0)
285
283
            else:
286
284
                expires = (datetime.datetime.strptime
287
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
285
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
288
286
                timer = max(expires - datetime.datetime.utcnow(),
289
287
                            datetime.timedelta())
290
 
            message = ("A checker has failed! Time until client"
291
 
                       " gets disabled: {}"
 
288
            message = ('A checker has failed! Time until client'
 
289
                       ' gets disabled: {}'
292
290
                       .format(str(timer).rsplit(".", 1)[0]))
293
291
            self.using_timer(True)
294
292
        else:
295
293
            message = "enabled"
296
294
            self.using_timer(False)
297
295
        self._text = "{}{}".format(base, message)
298
 
 
 
296
        
299
297
        if not urwid.supports_unicode():
300
298
            self._text = self._text.encode("ascii", "replace")
301
299
        textlist = [("normal", self._text)]
311
309
        # Run update hook, if any
312
310
        if self.update_hook is not None:
313
311
            self.update_hook()
314
 
 
 
312
    
315
313
    def update_timer(self):
316
 
        """called by GLib. Will indefinitely loop until
317
 
        GLib.source_remove() on tag is called
318
 
        """
 
314
        """called by gobject. Will indefinitely loop until
 
315
        gobject.source_remove() on tag is called"""
319
316
        self.update()
320
317
        return True             # Keep calling this
321
 
 
 
318
    
322
319
    def delete(self, **kwargs):
323
320
        if self._update_timer_callback_tag is not None:
324
 
            GLib.source_remove(self._update_timer_callback_tag)
 
321
            gobject.source_remove(self._update_timer_callback_tag)
325
322
            self._update_timer_callback_tag = None
326
323
        for match in self.match_objects:
327
324
            match.remove()
329
326
        if self.delete_hook is not None:
330
327
            self.delete_hook(self)
331
328
        return super(MandosClientWidget, self).delete(**kwargs)
332
 
 
 
329
    
333
330
    def render(self, maxcolrow, focus=False):
334
331
        """Render differently if we have focus.
335
 
        This overrides the method from urwid.Widget"""
 
332
        This overrides the method from urwid.FlowWidget"""
336
333
        return self.current_widget(focus).render(maxcolrow,
337
334
                                                 focus=focus)
338
 
 
 
335
    
339
336
    def keypress(self, maxcolrow, key):
340
337
        """Handle keys.
341
 
        This overrides the method from urwid.Widget"""
 
338
        This overrides the method from urwid.FlowWidget"""
342
339
        if key == "+":
343
 
            self.proxy.Set(client_interface, "Enabled",
344
 
                           dbus.Boolean(True), ignore_reply=True,
345
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
340
            self.proxy.Enable(dbus_interface = client_interface,
 
341
                              ignore_reply=True)
346
342
        elif key == "-":
347
 
            self.proxy.Set(client_interface, "Enabled", False,
348
 
                           ignore_reply=True,
349
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
343
            self.proxy.Disable(dbus_interface = client_interface,
 
344
                               ignore_reply=True)
350
345
        elif key == "a":
351
346
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
352
 
                               dbus_interface=client_interface,
 
347
                               dbus_interface = client_interface,
353
348
                               ignore_reply=True)
354
349
        elif key == "d":
355
350
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
356
 
                               dbus_interface=client_interface,
 
351
                                  dbus_interface = client_interface,
357
352
                               ignore_reply=True)
358
353
        elif key == "R" or key == "_" or key == "ctrl k":
359
354
            self.server_proxy_object.RemoveClient(self.proxy
360
355
                                                  .object_path,
361
356
                                                  ignore_reply=True)
362
357
        elif key == "s":
363
 
            self.proxy.Set(client_interface, "CheckerRunning",
364
 
                           dbus.Boolean(True), ignore_reply=True,
365
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
358
            self.proxy.StartChecker(dbus_interface = client_interface,
 
359
                                    ignore_reply=True)
366
360
        elif key == "S":
367
 
            self.proxy.Set(client_interface, "CheckerRunning",
368
 
                           dbus.Boolean(False), ignore_reply=True,
369
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
361
            self.proxy.StopChecker(dbus_interface = client_interface,
 
362
                                   ignore_reply=True)
370
363
        elif key == "C":
371
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
364
            self.proxy.CheckedOK(dbus_interface = client_interface,
372
365
                                 ignore_reply=True)
373
366
        # xxx
374
367
#         elif key == "p" or key == "=":
379
372
#             self.open()
380
373
        else:
381
374
            return key
382
 
 
 
375
    
383
376
    def properties_changed(self, interface, properties, invalidated):
384
377
        """Call self.update() if any properties changed.
385
378
        This overrides the method from MandosClientPropertyCache"""
386
 
        old_values = {key: self.properties.get(key)
387
 
                      for key in properties.keys()}
 
379
        old_values = { key: self.properties.get(key)
 
380
                       for key in properties.keys() }
388
381
        super(MandosClientWidget, self).properties_changed(
389
382
            interface, properties, invalidated)
390
383
        if any(old_values[key] != self.properties.get(key)
392
385
            self.update()
393
386
 
394
387
 
395
 
def glib_safely(func, retval=True):
396
 
    def safe_func(*args, **kwargs):
397
 
        try:
398
 
            return func(*args, **kwargs)
399
 
        except Exception:
400
 
            log.exception("")
401
 
            return retval
402
 
    return safe_func
403
 
 
404
 
 
405
388
class ConstrainedListBox(urwid.ListBox):
406
389
    """Like a normal urwid.ListBox, but will consume all "up" or
407
390
    "down" key presses, thus not allowing any containing widgets to
408
391
    use them as an excuse to shift focus away from this widget.
409
392
    """
410
393
    def keypress(self, *args, **kwargs):
411
 
        ret = (super(ConstrainedListBox, self)
412
 
               .keypress(*args, **kwargs))
 
394
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
413
395
        if ret in ("up", "down"):
414
396
            return
415
397
        return ret
416
398
 
417
399
 
418
 
class UserInterface:
 
400
class UserInterface(object):
419
401
    """This is the entire user interface - the whole screen
420
402
    with boxes, lists of client widgets, etc.
421
403
    """
422
 
    def __init__(self, max_log_length=1000):
 
404
    def __init__(self, max_log_length=1000, log_level=1):
423
405
        DBusGMainLoop(set_as_default=True)
424
 
 
 
406
        
425
407
        self.screen = urwid.curses_display.Screen()
426
 
 
 
408
        
427
409
        self.screen.register_palette((
428
410
                ("normal",
429
411
                 "default", "default", None),
434
416
                ("standout",
435
417
                 "standout", "default", "standout"),
436
418
                ("bold-underline-blink",
437
 
                 "bold,underline,blink", "default",
438
 
                 "bold,underline,blink"),
 
419
                 "bold,underline,blink", "default", "bold,underline,blink"),
439
420
                ("bold-standout",
440
421
                 "bold,standout", "default", "bold,standout"),
441
422
                ("underline-blink-standout",
445
426
                 "bold,underline,blink,standout", "default",
446
427
                 "bold,underline,blink,standout"),
447
428
                ))
448
 
 
 
429
        
449
430
        if urwid.supports_unicode():
450
 
            self.divider = "─"  # \u2500
 
431
            self.divider = "─" # \u2500
 
432
            #self.divider = "━" # \u2501
451
433
        else:
452
 
            self.divider = "_"  # \u005f
453
 
 
 
434
            #self.divider = "-" # \u002d
 
435
            self.divider = "_" # \u005f
 
436
        
454
437
        self.screen.start()
455
 
 
 
438
        
456
439
        self.size = self.screen.get_cols_rows()
457
 
 
 
440
        
458
441
        self.clients = urwid.SimpleListWalker([])
459
442
        self.clients_dict = {}
460
 
 
 
443
        
461
444
        # We will add Text widgets to this list
462
 
        self.log = urwid.SimpleListWalker([])
 
445
        self.log = []
463
446
        self.max_log_length = max_log_length
464
 
 
 
447
        
 
448
        self.log_level = log_level
 
449
        
465
450
        # We keep a reference to the log widget so we can remove it
466
451
        # from the ListWalker without it getting destroyed
467
452
        self.logbox = ConstrainedListBox(self.log)
468
 
 
 
453
        
469
454
        # This keeps track of whether self.uilist currently has
470
455
        # self.logbox in it or not
471
456
        self.log_visible = True
472
457
        self.log_wrap = "any"
473
 
 
474
 
        self.loghandler = UILogHandler(self)
475
 
 
 
458
        
476
459
        self.rebuild()
477
 
        self.add_log_line(("bold",
478
 
                           "Mandos Monitor version " + version))
479
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
480
 
 
481
 
        self.busname = domain + ".Mandos"
482
 
        self.main_loop = GLib.MainLoop()
483
 
 
484
 
    def client_not_found(self, key_id, address):
485
 
        log.info("Client with address %s and key ID %s could"
486
 
                 " not be found", address, key_id)
487
 
 
 
460
        self.log_message_raw(("bold",
 
461
                              "Mandos Monitor version " + version))
 
462
        self.log_message_raw(("bold",
 
463
                              "q: Quit  ?: Help"))
 
464
        
 
465
        self.busname = domain + '.Mandos'
 
466
        self.main_loop = gobject.MainLoop()
 
467
    
 
468
    def client_not_found(self, fingerprint, address):
 
469
        self.log_message("Client with address {} and fingerprint {}"
 
470
                         " could not be found"
 
471
                         .format(address, fingerprint))
 
472
    
488
473
    def rebuild(self):
489
474
        """This rebuilds the User Interface.
490
475
        Call this when the widget layout needs to change"""
491
476
        self.uilist = []
492
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
477
        #self.uilist.append(urwid.ListBox(self.clients))
493
478
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
494
479
                                                          clients),
495
 
                                       # header=urwid.Divider(),
 
480
                                       #header=urwid.Divider(),
496
481
                                       header=None,
497
 
                                       footer=urwid.Divider(
498
 
                                           div_char=self.divider)))
 
482
                                       footer=
 
483
                                       urwid.Divider(div_char=
 
484
                                                     self.divider)))
499
485
        if self.log_visible:
500
486
            self.uilist.append(self.logbox)
501
487
        self.topwidget = urwid.Pile(self.uilist)
502
 
 
503
 
    def add_log_line(self, markup):
 
488
    
 
489
    def log_message(self, message, level=1):
 
490
        """Log message formatted with timestamp"""
 
491
        if level < self.log_level:
 
492
            return
 
493
        timestamp = datetime.datetime.now().isoformat()
 
494
        self.log_message_raw("{}: {}".format(timestamp, message),
 
495
                             level=level)
 
496
    
 
497
    def log_message_raw(self, markup, level=1):
 
498
        """Add a log message to the log buffer."""
 
499
        if level < self.log_level:
 
500
            return
504
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
505
 
        if self.max_log_length:
506
 
            if len(self.log) > self.max_log_length:
507
 
                del self.log[0:(len(self.log) - self.max_log_length)]
508
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
502
        if (self.max_log_length
 
503
            and len(self.log) > self.max_log_length):
 
504
            del self.log[0:len(self.log)-self.max_log_length-1]
 
505
        self.logbox.set_focus(len(self.logbox.body.contents),
509
506
                              coming_from="above")
510
507
        self.refresh()
511
 
 
 
508
    
512
509
    def toggle_log_display(self):
513
510
        """Toggle visibility of the log buffer."""
514
511
        self.log_visible = not self.log_visible
515
512
        self.rebuild()
516
 
        log.debug("Log visibility changed to: %s", self.log_visible)
517
 
 
 
513
        self.log_message("Log visibility changed to: {}"
 
514
                         .format(self.log_visible), level=0)
 
515
    
518
516
    def change_log_display(self):
519
517
        """Change type of log display.
520
518
        Currently, this toggles wrapping of text lines."""
524
522
            self.log_wrap = "clip"
525
523
        for textwidget in self.log:
526
524
            textwidget.set_wrap_mode(self.log_wrap)
527
 
        log.debug("Wrap mode: %s", self.log_wrap)
528
 
 
529
 
    def find_and_remove_client(self, path, interfaces):
 
525
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
526
                         level=0)
 
527
    
 
528
    def find_and_remove_client(self, path, name):
530
529
        """Find a client by its object path and remove it.
531
 
 
532
 
        This is connected to the InterfacesRemoved signal from the
 
530
        
 
531
        This is connected to the ClientRemoved signal from the
533
532
        Mandos server object."""
534
 
        if client_interface not in interfaces:
535
 
            # Not a Mandos client object; ignore
536
 
            return
537
533
        try:
538
534
            client = self.clients_dict[path]
539
535
        except KeyError:
540
536
            # not found?
541
 
            log.warning("Unknown client %s removed", path)
 
537
            self.log_message("Unknown client {!r} ({!r}) removed"
 
538
                             .format(name, path))
542
539
            return
543
540
        client.delete()
544
 
 
545
 
    def add_new_client(self, path, ifs_and_props):
546
 
        """Find a client by its object path and remove it.
547
 
 
548
 
        This is connected to the InterfacesAdded signal from the
549
 
        Mandos server object.
550
 
        """
551
 
        if client_interface not in ifs_and_props:
552
 
            # Not a Mandos client object; ignore
553
 
            return
 
541
    
 
542
    def add_new_client(self, path):
554
543
        client_proxy_object = self.bus.get_object(self.busname, path)
555
 
        self.add_client(MandosClientWidget(
556
 
            server_proxy_object=self.mandos_serv,
557
 
            proxy_object=client_proxy_object,
558
 
            update_hook=self.refresh,
559
 
            delete_hook=self.remove_client,
560
 
            properties=dict(ifs_and_props[client_interface])),
 
544
        self.add_client(MandosClientWidget(server_proxy_object
 
545
                                           =self.mandos_serv,
 
546
                                           proxy_object
 
547
                                           =client_proxy_object,
 
548
                                           update_hook
 
549
                                           =self.refresh,
 
550
                                           delete_hook
 
551
                                           =self.remove_client,
 
552
                                           logger
 
553
                                           =self.log_message),
561
554
                        path=path)
562
 
 
 
555
    
563
556
    def add_client(self, client, path=None):
564
557
        self.clients.append(client)
565
558
        if path is None:
567
560
        self.clients_dict[path] = client
568
561
        self.clients.sort(key=lambda c: c.properties["Name"])
569
562
        self.refresh()
570
 
 
 
563
    
571
564
    def remove_client(self, client, path=None):
572
565
        self.clients.remove(client)
573
566
        if path is None:
574
567
            path = client.proxy.object_path
575
568
        del self.clients_dict[path]
576
569
        self.refresh()
577
 
 
 
570
    
578
571
    def refresh(self):
579
572
        """Redraw the screen"""
580
573
        canvas = self.topwidget.render(self.size, focus=True)
581
574
        self.screen.draw_screen(self.size, canvas)
582
 
 
 
575
    
583
576
    def run(self):
584
577
        """Start the main loop and exit when it's done."""
585
 
        log.addHandler(self.loghandler)
586
 
        self.orig_log_propagate = log.propagate
587
 
        log.propagate = False
588
 
        self.orig_log_level = log.level
589
 
        log.setLevel("INFO")
590
578
        self.bus = dbus.SystemBus()
591
579
        mandos_dbus_objc = self.bus.get_object(
592
580
            self.busname, "/", follow_name_owner_changes=True)
593
 
        self.mandos_serv = dbus.Interface(
594
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
581
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
582
                                          dbus_interface
 
583
                                          = server_interface)
595
584
        try:
596
585
            mandos_clients = (self.mandos_serv
597
586
                              .GetAllClientsWithProperties())
598
587
            if not mandos_clients:
599
 
                log.warning("Note: Server has no clients.")
 
588
                self.log_message_raw(("bold", "Note: Server has no clients."))
600
589
        except dbus.exceptions.DBusException:
601
 
            log.warning("Note: No Mandos server running.")
 
590
            self.log_message_raw(("bold", "Note: No Mandos server running."))
602
591
            mandos_clients = dbus.Dictionary()
603
 
 
 
592
        
604
593
        (self.mandos_serv
605
 
         .connect_to_signal("InterfacesRemoved",
 
594
         .connect_to_signal("ClientRemoved",
606
595
                            self.find_and_remove_client,
607
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
596
                            dbus_interface=server_interface,
608
597
                            byte_arrays=True))
609
598
        (self.mandos_serv
610
 
         .connect_to_signal("InterfacesAdded",
 
599
         .connect_to_signal("ClientAdded",
611
600
                            self.add_new_client,
612
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
601
                            dbus_interface=server_interface,
613
602
                            byte_arrays=True))
614
603
        (self.mandos_serv
615
604
         .connect_to_signal("ClientNotFound",
619
608
        for path, client in mandos_clients.items():
620
609
            client_proxy_object = self.bus.get_object(self.busname,
621
610
                                                      path)
622
 
            self.add_client(MandosClientWidget(
623
 
                server_proxy_object=self.mandos_serv,
624
 
                proxy_object=client_proxy_object,
625
 
                properties=client,
626
 
                update_hook=self.refresh,
627
 
                delete_hook=self.remove_client),
 
611
            self.add_client(MandosClientWidget(server_proxy_object
 
612
                                               =self.mandos_serv,
 
613
                                               proxy_object
 
614
                                               =client_proxy_object,
 
615
                                               properties=client,
 
616
                                               update_hook
 
617
                                               =self.refresh,
 
618
                                               delete_hook
 
619
                                               =self.remove_client,
 
620
                                               logger
 
621
                                               =self.log_message),
628
622
                            path=path)
629
 
 
 
623
        
630
624
        self.refresh()
631
 
        self._input_callback_tag = (
632
 
            GLib.io_add_watch(
633
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
634
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
635
 
                glib_safely(self.process_input)))
 
625
        self._input_callback_tag = (gobject.io_add_watch
 
626
                                    (sys.stdin.fileno(),
 
627
                                     gobject.IO_IN,
 
628
                                     self.process_input))
636
629
        self.main_loop.run()
637
630
        # Main loop has finished, we should close everything now
638
 
        GLib.source_remove(self._input_callback_tag)
639
 
        with warnings.catch_warnings():
640
 
            warnings.simplefilter("ignore", BytesWarning)
641
 
            self.screen.stop()
642
 
 
 
631
        gobject.source_remove(self._input_callback_tag)
 
632
        self.screen.stop()
 
633
    
643
634
    def stop(self):
644
635
        self.main_loop.quit()
645
 
        log.removeHandler(self.loghandler)
646
 
        log.propagate = self.orig_log_propagate
647
 
 
 
636
    
648
637
    def process_input(self, source, condition):
649
638
        keys = self.screen.get_input()
650
 
        translations = {"ctrl n": "down",       # Emacs
651
 
                        "ctrl p": "up",         # Emacs
652
 
                        "ctrl v": "page down",  # Emacs
653
 
                        "meta v": "page up",    # Emacs
654
 
                        " ": "page down",       # less
655
 
                        "f": "page down",       # less
656
 
                        "b": "page up",         # less
657
 
                        "j": "down",            # vi
658
 
                        "k": "up",              # vi
659
 
                        }
 
639
        translations = { "ctrl n": "down",      # Emacs
 
640
                         "ctrl p": "up",        # Emacs
 
641
                         "ctrl v": "page down", # Emacs
 
642
                         "meta v": "page up",   # Emacs
 
643
                         " ": "page down",      # less
 
644
                         "f": "page down",      # less
 
645
                         "b": "page up",        # less
 
646
                         "j": "down",           # vi
 
647
                         "k": "up",             # vi
 
648
                         }
660
649
        for key in keys:
661
650
            try:
662
651
                key = translations[key]
663
652
            except KeyError:    # :-)
664
653
                pass
665
 
 
 
654
            
666
655
            if key == "q" or key == "Q":
667
656
                self.stop()
668
657
                break
682
671
                if not self.log_visible:
683
672
                    self.log_visible = True
684
673
                    self.rebuild()
685
 
                self.add_log_line(("bold",
686
 
                                   "  ".join(("q: Quit",
687
 
                                              "?: Help",
688
 
                                              "l: Log window toggle",
689
 
                                              "TAB: Switch window",
690
 
                                              "w: Wrap (log lines)",
691
 
                                              "v: Toggle verbose log",
692
 
                                   ))))
693
 
                self.add_log_line(("bold",
694
 
                                   "  ".join(("Clients:",
695
 
                                              "+: Enable",
696
 
                                              "-: Disable",
697
 
                                              "R: Remove",
698
 
                                              "s: Start new checker",
699
 
                                              "S: Stop checker",
700
 
                                              "C: Checker OK",
701
 
                                              "a: Approve",
702
 
                                              "d: Deny",
703
 
                                   ))))
 
674
                self.log_message_raw(("bold",
 
675
                                      "  ".
 
676
                                      join(("q: Quit",
 
677
                                            "?: Help",
 
678
                                            "l: Log window toggle",
 
679
                                            "TAB: Switch window",
 
680
                                            "w: Wrap (log lines)",
 
681
                                            "v: Toggle verbose log",
 
682
                                            ))))
 
683
                self.log_message_raw(("bold",
 
684
                                      "  "
 
685
                                      .join(("Clients:",
 
686
                                             "+: Enable",
 
687
                                             "-: Disable",
 
688
                                             "R: Remove",
 
689
                                             "s: Start new checker",
 
690
                                             "S: Stop checker",
 
691
                                             "C: Checker OK",
 
692
                                             "a: Approve",
 
693
                                             "d: Deny"))))
704
694
                self.refresh()
705
695
            elif key == "tab":
706
696
                if self.topwidget.get_focus() is self.logbox:
709
699
                    self.topwidget.set_focus(self.logbox)
710
700
                self.refresh()
711
701
            elif key == "v":
712
 
                if log.level < logging.INFO:
713
 
                    log.setLevel(logging.INFO)
714
 
                    log.info("Verbose mode: Off")
 
702
                if self.log_level == 0:
 
703
                    self.log_level = 1
 
704
                    self.log_message("Verbose mode: Off")
715
705
                else:
716
 
                    log.setLevel(logging.NOTSET)
717
 
                    log.info("Verbose mode: On")
718
 
            # elif (key == "end" or key == "meta >" or key == "G"
719
 
            #       or key == ">"):
720
 
            #     pass            # xxx end-of-buffer
721
 
            # elif (key == "home" or key == "meta <" or key == "g"
722
 
            #       or key == "<"):
723
 
            #     pass            # xxx beginning-of-buffer
724
 
            # elif key == "ctrl e" or key == "$":
725
 
            #     pass            # xxx move-end-of-line
726
 
            # elif key == "ctrl a" or key == "^":
727
 
            #     pass            # xxx move-beginning-of-line
728
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
729
 
            #     pass            # xxx left
730
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
731
 
            #     pass            # xxx right
732
 
            # elif key == "a":
733
 
            #     pass            # scroll up log
734
 
            # elif key == "z":
735
 
            #     pass            # scroll down log
 
706
                    self.log_level = 0
 
707
                    self.log_message("Verbose mode: On")
 
708
            #elif (key == "end" or key == "meta >" or key == "G"
 
709
            #      or key == ">"):
 
710
            #    pass            # xxx end-of-buffer
 
711
            #elif (key == "home" or key == "meta <" or key == "g"
 
712
            #      or key == "<"):
 
713
            #    pass            # xxx beginning-of-buffer
 
714
            #elif key == "ctrl e" or key == "$":
 
715
            #    pass            # xxx move-end-of-line
 
716
            #elif key == "ctrl a" or key == "^":
 
717
            #    pass            # xxx move-beginning-of-line
 
718
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
719
            #    pass            # xxx left
 
720
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
721
            #    pass            # xxx right
 
722
            #elif key == "a":
 
723
            #    pass            # scroll up log
 
724
            #elif key == "z":
 
725
            #    pass            # scroll down log
736
726
            elif self.topwidget.selectable():
737
727
                self.topwidget.keypress(self.size, key)
738
728
                self.refresh()
739
729
        return True
740
730
 
741
 
 
742
 
class UILogHandler(logging.Handler):
743
 
    def __init__(self, ui, *args, **kwargs):
744
 
        self.ui = ui
745
 
        super(UILogHandler, self).__init__(*args, **kwargs)
746
 
        self.setFormatter(
747
 
            logging.Formatter("%(asctime)s: %(message)s"))
748
 
    def emit(self, record):
749
 
        msg = self.format(record)
750
 
        if record.levelno > logging.INFO:
751
 
            msg = ("bold", msg)
752
 
        self.ui.add_log_line(msg)
753
 
 
754
 
 
755
731
ui = UserInterface()
756
732
try:
757
733
    ui.run()
758
734
except KeyboardInterrupt:
759
 
    with warnings.catch_warnings():
760
 
        warnings.filterwarnings("ignore", "", BytesWarning)
761
 
        ui.screen.stop()
762
 
except Exception:
763
 
    with warnings.catch_warnings():
764
 
        warnings.filterwarnings("ignore", "", BytesWarning)
765
 
        ui.screen.stop()
 
735
    ui.screen.stop()
 
736
except Exception as e:
 
737
    ui.log_message(str(e))
 
738
    ui.screen.stop()
766
739
    raise