/mandos/trunk

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  • Committer: Teddy Hogeborn
  • Date: 2015-07-12 01:41:14 UTC
  • Revision ID: teddy@recompile.se-20150712014114-qbala4mutkixxct3
Handle local Zeroconf service name collisions on startup, too.

* mandos (AvahiService.server_state_changed): Catch name collision
                                              error when adding
                                              server.

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mandos-monitor
1
 
#!/usr/bin/python3 -bb
 
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 © 2009-2015 Teddy Hogeborn
 
7
# Copyright © 2009-2015 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
# 
26
25
 
27
26
from __future__ import (division, absolute_import, print_function,
28
27
                        unicode_literals)
33
32
 
34
33
import sys
35
34
import os
36
 
import warnings
 
35
 
37
36
import datetime
38
 
import locale
39
 
import logging
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
52
    str = unicode
51
53
 
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)
 
54
locale.setlocale(locale.LC_ALL, '')
 
55
 
 
56
import logging
 
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
61
58
 
62
59
# Some useful constants
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
 
 
 
60
domain = 'se.recompile'
 
61
server_interface = domain + '.Mandos'
 
62
client_interface = domain + '.Mandos.Client'
 
63
version = "1.6.9"
73
64
 
74
65
def isoformat_to_datetime(iso):
75
66
    "Parse an ISO 8601 date string to a datetime.datetime()"
84
75
                             int(day),
85
76
                             int(hour),
86
77
                             int(minute),
87
 
                             int(second),            # Whole seconds
88
 
                             int(fraction*1000000))  # Microseconds
89
 
 
 
78
                             int(second),           # Whole seconds
 
79
                             int(fraction*1000000)) # Microseconds
90
80
 
91
81
class MandosClientPropertyCache(object):
92
82
    """This wraps a Mandos Client D-Bus proxy object, caches the
94
84
    changed.
95
85
    """
96
86
    def __init__(self, proxy_object=None, properties=None, **kwargs):
97
 
        self.proxy = proxy_object  # Mandos Client proxy object
 
87
        self.proxy = proxy_object # Mandos Client proxy object
98
88
        self.properties = dict() if properties is None else properties
99
89
        self.property_changed_match = (
100
90
            self.proxy.connect_to_signal("PropertiesChanged",
101
91
                                         self.properties_changed,
102
92
                                         dbus.PROPERTIES_IFACE,
103
93
                                         byte_arrays=True))
104
 
 
 
94
        
105
95
        if properties is None:
106
 
            self.properties.update(self.proxy.GetAll(
107
 
                client_interface,
108
 
                dbus_interface=dbus.PROPERTIES_IFACE))
109
 
 
 
96
            self.properties.update(
 
97
                self.proxy.GetAll(client_interface,
 
98
                                  dbus_interface
 
99
                                  = dbus.PROPERTIES_IFACE))
 
100
        
110
101
        super(MandosClientPropertyCache, self).__init__(**kwargs)
111
 
 
 
102
    
112
103
    def properties_changed(self, interface, properties, invalidated):
113
104
        """This is called whenever we get a PropertiesChanged signal
114
105
        It updates the changed properties in the "properties" dict.
115
106
        """
116
107
        # Update properties dict with new value
117
 
        if interface == client_interface:
118
 
            self.properties.update(properties)
119
 
 
 
108
        self.properties.update(properties)
 
109
    
120
110
    def delete(self):
121
111
        self.property_changed_match.remove()
122
112
 
124
114
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
125
115
    """A Mandos Client which is visible on the screen.
126
116
    """
127
 
 
 
117
    
128
118
    def __init__(self, server_proxy_object=None, update_hook=None,
129
 
                 delete_hook=None, **kwargs):
 
119
                 delete_hook=None, logger=None, **kwargs):
130
120
        # Called on update
131
121
        self.update_hook = update_hook
132
122
        # Called on delete
133
123
        self.delete_hook = delete_hook
134
124
        # Mandos Server proxy object
135
125
        self.server_proxy_object = server_proxy_object
136
 
 
 
126
        # Logger
 
127
        self.logger = logger
 
128
        
137
129
        self._update_timer_callback_tag = None
138
 
 
 
130
        
139
131
        # The widget shown normally
140
132
        self._text_widget = urwid.Text("")
141
133
        # The widget shown when we have focus
143
135
        super(MandosClientWidget, self).__init__(**kwargs)
144
136
        self.update()
145
137
        self.opened = False
146
 
 
 
138
        
147
139
        self.match_objects = (
148
140
            self.proxy.connect_to_signal("CheckerCompleted",
149
141
                                         self.checker_completed,
165
157
                                         self.rejected,
166
158
                                         client_interface,
167
159
                                         byte_arrays=True))
168
 
        log.debug("Created client %s", self.properties["Name"])
169
 
 
 
160
        self.logger('Created client {}'
 
161
                    .format(self.properties["Name"]), level=0)
 
162
    
170
163
    def using_timer(self, flag):
171
164
        """Call this method with True or False when timer should be
172
165
        activated or deactivated.
173
166
        """
174
167
        if flag and self._update_timer_callback_tag is None:
175
168
            # Will update the shown timer value every second
176
 
            self._update_timer_callback_tag = (
177
 
                GLib.timeout_add(1000,
178
 
                                 glib_safely(self.update_timer)))
 
169
            self._update_timer_callback_tag = (gobject.timeout_add
 
170
                                               (1000,
 
171
                                                self.update_timer))
179
172
        elif not (flag or self._update_timer_callback_tag is None):
180
 
            GLib.source_remove(self._update_timer_callback_tag)
 
173
            gobject.source_remove(self._update_timer_callback_tag)
181
174
            self._update_timer_callback_tag = None
182
 
 
183
 
    def checker_completed(self, exitstatus, condition, command):
 
175
    
 
176
    def checker_completed(self, exitstatus, signal, command):
184
177
        if exitstatus == 0:
185
 
            log.debug('Checker for client %s (command "%s")'
186
 
                      " succeeded", self.properties["Name"], command)
 
178
            self.logger('Checker for client {} (command "{}")'
 
179
                        ' succeeded'.format(self.properties["Name"],
 
180
                                            command), level=0)
187
181
            self.update()
188
182
            return
189
183
        # Checker failed
190
 
        if os.WIFEXITED(condition):
191
 
            log.info('Checker for client %s (command "%s") failed'
192
 
                     " with exit code %d", self.properties["Name"],
193
 
                     command, os.WEXITSTATUS(condition))
194
 
        elif os.WIFSIGNALED(condition):
195
 
            log.info('Checker for client %s (command "%s") was'
196
 
                     " killed by signal %d", self.properties["Name"],
197
 
                     command, os.WTERMSIG(condition))
 
184
        if exitstatus >= 0:
 
185
            self.logger('Checker for client {} (command "{}") failed'
 
186
                        ' with exit code {}'
 
187
                        .format(self.properties["Name"], command,
 
188
                                exitstatus))
 
189
        elif signal != 0:
 
190
            self.logger('Checker for client {} (command "{}") was'
 
191
                        ' killed by signal {}'
 
192
                        .format(self.properties["Name"], command,
 
193
                                signal))
 
194
        else:
 
195
            self.logger('Checker for client {} completed'
 
196
                        ' mysteriously'
 
197
                        .format(self.properties["Name"]))
198
198
        self.update()
199
 
 
 
199
    
200
200
    def checker_started(self, command):
201
201
        """Server signals that a checker started."""
202
 
        log.debug('Client %s started checker "%s"',
203
 
                  self.properties["Name"], command)
204
 
 
 
202
        self.logger('Client {} started checker "{}"'
 
203
                    .format(self.properties["Name"],
 
204
                            command), level=0)
 
205
    
205
206
    def got_secret(self):
206
 
        log.info("Client %s received its secret",
207
 
                 self.properties["Name"])
208
 
 
 
207
        self.logger('Client {} received its secret'
 
208
                    .format(self.properties["Name"]))
 
209
    
209
210
    def need_approval(self, timeout, default):
210
211
        if not default:
211
 
            message = "Client %s needs approval within %f seconds"
 
212
            message = 'Client {} needs approval within {} seconds'
212
213
        else:
213
 
            message = "Client %s will get its secret in %f seconds"
214
 
        log.info(message, self.properties["Name"], timeout/1000)
215
 
 
 
214
            message = 'Client {} will get its secret in {} seconds'
 
215
        self.logger(message.format(self.properties["Name"],
 
216
                                   timeout/1000))
 
217
    
216
218
    def rejected(self, reason):
217
 
        log.info("Client %s was rejected; reason: %s",
218
 
                 self.properties["Name"], reason)
219
 
 
 
219
        self.logger('Client {} was rejected; reason: {}'
 
220
                    .format(self.properties["Name"], reason))
 
221
    
220
222
    def selectable(self):
221
223
        """Make this a "selectable" widget.
222
224
        This overrides the method from urwid.FlowWidget."""
223
225
        return True
224
 
 
 
226
    
225
227
    def rows(self, maxcolrow, focus=False):
226
228
        """How many rows this widget will occupy might depend on
227
229
        whether we have focus or not.
228
230
        This overrides the method from urwid.FlowWidget"""
229
231
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
230
 
 
 
232
    
231
233
    def current_widget(self, focus=False):
232
234
        if focus or self.opened:
233
235
            return self._focus_widget
234
236
        return self._widget
235
 
 
 
237
    
236
238
    def update(self):
237
239
        "Called when what is visible on the screen should be updated."
238
240
        # How to add standout mode to a style
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
 
 
 
241
        with_standout = { "normal": "standout",
 
242
                          "bold": "bold-standout",
 
243
                          "underline-blink":
 
244
                              "underline-blink-standout",
 
245
                          "bold-underline-blink":
 
246
                              "bold-underline-blink-standout",
 
247
                          }
 
248
        
247
249
        # Rebuild focus and non-focus widgets using current properties
248
 
 
 
250
        
249
251
        # Base part of a client. Name!
250
 
        base = "{name}: ".format(name=self.properties["Name"])
 
252
        base = '{name}: '.format(name=self.properties["Name"])
251
253
        if not self.properties["Enabled"]:
252
254
            message = "DISABLED"
253
255
            self.using_timer(False)
254
256
        elif self.properties["ApprovalPending"]:
255
 
            timeout = datetime.timedelta(
256
 
                milliseconds=self.properties["ApprovalDelay"])
 
257
            timeout = datetime.timedelta(milliseconds
 
258
                                         = self.properties
 
259
                                         ["ApprovalDelay"])
257
260
            last_approval_request = isoformat_to_datetime(
258
261
                self.properties["LastApprovalRequest"])
259
262
            if last_approval_request is not None:
275
278
                timer = datetime.timedelta(0)
276
279
            else:
277
280
                expires = (datetime.datetime.strptime
278
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
281
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
279
282
                timer = max(expires - datetime.datetime.utcnow(),
280
283
                            datetime.timedelta())
281
 
            message = ("A checker has failed! Time until client"
282
 
                       " gets disabled: {}"
 
284
            message = ('A checker has failed! Time until client'
 
285
                       ' gets disabled: {}'
283
286
                       .format(str(timer).rsplit(".", 1)[0]))
284
287
            self.using_timer(True)
285
288
        else:
286
289
            message = "enabled"
287
290
            self.using_timer(False)
288
291
        self._text = "{}{}".format(base, message)
289
 
 
 
292
        
290
293
        if not urwid.supports_unicode():
291
294
            self._text = self._text.encode("ascii", "replace")
292
295
        textlist = [("normal", self._text)]
302
305
        # Run update hook, if any
303
306
        if self.update_hook is not None:
304
307
            self.update_hook()
305
 
 
 
308
    
306
309
    def update_timer(self):
307
 
        """called by GLib. Will indefinitely loop until
308
 
        GLib.source_remove() on tag is called
309
 
        """
 
310
        """called by gobject. Will indefinitely loop until
 
311
        gobject.source_remove() on tag is called"""
310
312
        self.update()
311
313
        return True             # Keep calling this
312
 
 
 
314
    
313
315
    def delete(self, **kwargs):
314
316
        if self._update_timer_callback_tag is not None:
315
 
            GLib.source_remove(self._update_timer_callback_tag)
 
317
            gobject.source_remove(self._update_timer_callback_tag)
316
318
            self._update_timer_callback_tag = None
317
319
        for match in self.match_objects:
318
320
            match.remove()
320
322
        if self.delete_hook is not None:
321
323
            self.delete_hook(self)
322
324
        return super(MandosClientWidget, self).delete(**kwargs)
323
 
 
 
325
    
324
326
    def render(self, maxcolrow, focus=False):
325
327
        """Render differently if we have focus.
326
328
        This overrides the method from urwid.FlowWidget"""
327
329
        return self.current_widget(focus).render(maxcolrow,
328
330
                                                 focus=focus)
329
 
 
 
331
    
330
332
    def keypress(self, maxcolrow, key):
331
333
        """Handle keys.
332
334
        This overrides the method from urwid.FlowWidget"""
333
335
        if key == "+":
334
 
            self.proxy.Set(client_interface, "Enabled",
335
 
                           dbus.Boolean(True), ignore_reply=True,
336
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
336
            self.proxy.Enable(dbus_interface = client_interface,
 
337
                              ignore_reply=True)
337
338
        elif key == "-":
338
 
            self.proxy.Set(client_interface, "Enabled", False,
339
 
                           ignore_reply=True,
340
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
339
            self.proxy.Disable(dbus_interface = client_interface,
 
340
                               ignore_reply=True)
341
341
        elif key == "a":
342
342
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
343
 
                               dbus_interface=client_interface,
 
343
                               dbus_interface = client_interface,
344
344
                               ignore_reply=True)
345
345
        elif key == "d":
346
346
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
347
 
                               dbus_interface=client_interface,
 
347
                                  dbus_interface = client_interface,
348
348
                               ignore_reply=True)
349
349
        elif key == "R" or key == "_" or key == "ctrl k":
350
350
            self.server_proxy_object.RemoveClient(self.proxy
351
351
                                                  .object_path,
352
352
                                                  ignore_reply=True)
353
353
        elif key == "s":
354
 
            self.proxy.Set(client_interface, "CheckerRunning",
355
 
                           dbus.Boolean(True), ignore_reply=True,
356
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
354
            self.proxy.StartChecker(dbus_interface = client_interface,
 
355
                                    ignore_reply=True)
357
356
        elif key == "S":
358
 
            self.proxy.Set(client_interface, "CheckerRunning",
359
 
                           dbus.Boolean(False), ignore_reply=True,
360
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
357
            self.proxy.StopChecker(dbus_interface = client_interface,
 
358
                                   ignore_reply=True)
361
359
        elif key == "C":
362
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
360
            self.proxy.CheckedOK(dbus_interface = client_interface,
363
361
                                 ignore_reply=True)
364
362
        # xxx
365
363
#         elif key == "p" or key == "=":
370
368
#             self.open()
371
369
        else:
372
370
            return key
373
 
 
 
371
    
374
372
    def properties_changed(self, interface, properties, invalidated):
375
373
        """Call self.update() if any properties changed.
376
374
        This overrides the method from MandosClientPropertyCache"""
377
 
        old_values = {key: self.properties.get(key)
378
 
                      for key in properties.keys()}
 
375
        old_values = { key: self.properties.get(key)
 
376
                       for key in properties.keys() }
379
377
        super(MandosClientWidget, self).properties_changed(
380
378
            interface, properties, invalidated)
381
379
        if any(old_values[key] != self.properties.get(key)
383
381
            self.update()
384
382
 
385
383
 
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
 
 
396
384
class ConstrainedListBox(urwid.ListBox):
397
385
    """Like a normal urwid.ListBox, but will consume all "up" or
398
386
    "down" key presses, thus not allowing any containing widgets to
399
387
    use them as an excuse to shift focus away from this widget.
400
388
    """
401
389
    def keypress(self, *args, **kwargs):
402
 
        ret = (super(ConstrainedListBox, self)
403
 
               .keypress(*args, **kwargs))
 
390
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
404
391
        if ret in ("up", "down"):
405
392
            return
406
393
        return ret
410
397
    """This is the entire user interface - the whole screen
411
398
    with boxes, lists of client widgets, etc.
412
399
    """
413
 
    def __init__(self, max_log_length=1000):
 
400
    def __init__(self, max_log_length=1000, log_level=1):
414
401
        DBusGMainLoop(set_as_default=True)
415
 
 
 
402
        
416
403
        self.screen = urwid.curses_display.Screen()
417
 
 
 
404
        
418
405
        self.screen.register_palette((
419
406
                ("normal",
420
407
                 "default", "default", None),
425
412
                ("standout",
426
413
                 "standout", "default", "standout"),
427
414
                ("bold-underline-blink",
428
 
                 "bold,underline,blink", "default",
429
 
                 "bold,underline,blink"),
 
415
                 "bold,underline,blink", "default", "bold,underline,blink"),
430
416
                ("bold-standout",
431
417
                 "bold,standout", "default", "bold,standout"),
432
418
                ("underline-blink-standout",
436
422
                 "bold,underline,blink,standout", "default",
437
423
                 "bold,underline,blink,standout"),
438
424
                ))
439
 
 
 
425
        
440
426
        if urwid.supports_unicode():
441
 
            self.divider = "─"  # \u2500
 
427
            self.divider = "─" # \u2500
 
428
            #self.divider = "━" # \u2501
442
429
        else:
443
 
            self.divider = "_"  # \u005f
444
 
 
 
430
            #self.divider = "-" # \u002d
 
431
            self.divider = "_" # \u005f
 
432
        
445
433
        self.screen.start()
446
 
 
 
434
        
447
435
        self.size = self.screen.get_cols_rows()
448
 
 
 
436
        
449
437
        self.clients = urwid.SimpleListWalker([])
450
438
        self.clients_dict = {}
451
 
 
 
439
        
452
440
        # We will add Text widgets to this list
453
 
        self.log = urwid.SimpleListWalker([])
 
441
        self.log = []
454
442
        self.max_log_length = max_log_length
455
 
 
 
443
        
 
444
        self.log_level = log_level
 
445
        
456
446
        # We keep a reference to the log widget so we can remove it
457
447
        # from the ListWalker without it getting destroyed
458
448
        self.logbox = ConstrainedListBox(self.log)
459
 
 
 
449
        
460
450
        # This keeps track of whether self.uilist currently has
461
451
        # self.logbox in it or not
462
452
        self.log_visible = True
463
453
        self.log_wrap = "any"
464
 
 
465
 
        self.loghandler = UILogHandler(self)
466
 
 
 
454
        
467
455
        self.rebuild()
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
 
 
 
456
        self.log_message_raw(("bold",
 
457
                              "Mandos Monitor version " + version))
 
458
        self.log_message_raw(("bold",
 
459
                              "q: Quit  ?: Help"))
 
460
        
 
461
        self.busname = domain + '.Mandos'
 
462
        self.main_loop = gobject.MainLoop()
 
463
    
 
464
    def client_not_found(self, fingerprint, address):
 
465
        self.log_message("Client with address {} and fingerprint {}"
 
466
                         " could not be found"
 
467
                         .format(address, fingerprint))
 
468
    
479
469
    def rebuild(self):
480
470
        """This rebuilds the User Interface.
481
471
        Call this when the widget layout needs to change"""
482
472
        self.uilist = []
483
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
473
        #self.uilist.append(urwid.ListBox(self.clients))
484
474
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
485
475
                                                          clients),
486
 
                                       # header=urwid.Divider(),
 
476
                                       #header=urwid.Divider(),
487
477
                                       header=None,
488
 
                                       footer=urwid.Divider(
489
 
                                           div_char=self.divider)))
 
478
                                       footer=
 
479
                                       urwid.Divider(div_char=
 
480
                                                     self.divider)))
490
481
        if self.log_visible:
491
482
            self.uilist.append(self.logbox)
492
483
        self.topwidget = urwid.Pile(self.uilist)
493
 
 
494
 
    def add_log_line(self, markup):
 
484
    
 
485
    def log_message(self, message, level=1):
 
486
        """Log message formatted with timestamp"""
 
487
        if level < self.log_level:
 
488
            return
 
489
        timestamp = datetime.datetime.now().isoformat()
 
490
        self.log_message_raw("{}: {}".format(timestamp, message),
 
491
                             level=level)
 
492
    
 
493
    def log_message_raw(self, markup, level=1):
 
494
        """Add a log message to the log buffer."""
 
495
        if level < self.log_level:
 
496
            return
495
497
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
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,
 
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),
500
502
                              coming_from="above")
501
503
        self.refresh()
502
 
 
 
504
    
503
505
    def toggle_log_display(self):
504
506
        """Toggle visibility of the log buffer."""
505
507
        self.log_visible = not self.log_visible
506
508
        self.rebuild()
507
 
        log.debug("Log visibility changed to: %s", self.log_visible)
508
 
 
 
509
        self.log_message("Log visibility changed to: {}"
 
510
                         .format(self.log_visible), level=0)
 
511
    
509
512
    def change_log_display(self):
510
513
        """Change type of log display.
511
514
        Currently, this toggles wrapping of text lines."""
515
518
            self.log_wrap = "clip"
516
519
        for textwidget in self.log:
517
520
            textwidget.set_wrap_mode(self.log_wrap)
518
 
        log.debug("Wrap mode: %s", self.log_wrap)
519
 
 
520
 
    def find_and_remove_client(self, path, interfaces):
 
521
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
522
                         level=0)
 
523
    
 
524
    def find_and_remove_client(self, path, name):
521
525
        """Find a client by its object path and remove it.
522
 
 
523
 
        This is connected to the InterfacesRemoved signal from the
 
526
        
 
527
        This is connected to the ClientRemoved signal from the
524
528
        Mandos server object."""
525
 
        if client_interface not in interfaces:
526
 
            # Not a Mandos client object; ignore
527
 
            return
528
529
        try:
529
530
            client = self.clients_dict[path]
530
531
        except KeyError:
531
532
            # not found?
532
 
            log.warning("Unknown client %s removed", path)
 
533
            self.log_message("Unknown client {!r} ({!r}) removed"
 
534
                             .format(name, path))
533
535
            return
534
536
        client.delete()
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
 
537
    
 
538
    def add_new_client(self, path):
545
539
        client_proxy_object = self.bus.get_object(self.busname, path)
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])),
 
540
        self.add_client(MandosClientWidget(server_proxy_object
 
541
                                           =self.mandos_serv,
 
542
                                           proxy_object
 
543
                                           =client_proxy_object,
 
544
                                           update_hook
 
545
                                           =self.refresh,
 
546
                                           delete_hook
 
547
                                           =self.remove_client,
 
548
                                           logger
 
549
                                           =self.log_message),
552
550
                        path=path)
553
 
 
 
551
    
554
552
    def add_client(self, client, path=None):
555
553
        self.clients.append(client)
556
554
        if path is None:
558
556
        self.clients_dict[path] = client
559
557
        self.clients.sort(key=lambda c: c.properties["Name"])
560
558
        self.refresh()
561
 
 
 
559
    
562
560
    def remove_client(self, client, path=None):
563
561
        self.clients.remove(client)
564
562
        if path is None:
565
563
            path = client.proxy.object_path
566
564
        del self.clients_dict[path]
567
565
        self.refresh()
568
 
 
 
566
    
569
567
    def refresh(self):
570
568
        """Redraw the screen"""
571
569
        canvas = self.topwidget.render(self.size, focus=True)
572
570
        self.screen.draw_screen(self.size, canvas)
573
 
 
 
571
    
574
572
    def run(self):
575
573
        """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")
581
574
        self.bus = dbus.SystemBus()
582
575
        mandos_dbus_objc = self.bus.get_object(
583
576
            self.busname, "/", follow_name_owner_changes=True)
584
 
        self.mandos_serv = dbus.Interface(
585
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
577
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
578
                                          dbus_interface
 
579
                                          = server_interface)
586
580
        try:
587
581
            mandos_clients = (self.mandos_serv
588
582
                              .GetAllClientsWithProperties())
589
583
            if not mandos_clients:
590
 
                log.warning("Note: Server has no clients.")
 
584
                self.log_message_raw(("bold", "Note: Server has no clients."))
591
585
        except dbus.exceptions.DBusException:
592
 
            log.warning("Note: No Mandos server running.")
 
586
            self.log_message_raw(("bold", "Note: No Mandos server running."))
593
587
            mandos_clients = dbus.Dictionary()
594
 
 
 
588
        
595
589
        (self.mandos_serv
596
 
         .connect_to_signal("InterfacesRemoved",
 
590
         .connect_to_signal("ClientRemoved",
597
591
                            self.find_and_remove_client,
598
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
592
                            dbus_interface=server_interface,
599
593
                            byte_arrays=True))
600
594
        (self.mandos_serv
601
 
         .connect_to_signal("InterfacesAdded",
 
595
         .connect_to_signal("ClientAdded",
602
596
                            self.add_new_client,
603
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
597
                            dbus_interface=server_interface,
604
598
                            byte_arrays=True))
605
599
        (self.mandos_serv
606
600
         .connect_to_signal("ClientNotFound",
610
604
        for path, client in mandos_clients.items():
611
605
            client_proxy_object = self.bus.get_object(self.busname,
612
606
                                                      path)
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),
 
607
            self.add_client(MandosClientWidget(server_proxy_object
 
608
                                               =self.mandos_serv,
 
609
                                               proxy_object
 
610
                                               =client_proxy_object,
 
611
                                               properties=client,
 
612
                                               update_hook
 
613
                                               =self.refresh,
 
614
                                               delete_hook
 
615
                                               =self.remove_client,
 
616
                                               logger
 
617
                                               =self.log_message),
619
618
                            path=path)
620
 
 
 
619
        
621
620
        self.refresh()
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)))
 
621
        self._input_callback_tag = (gobject.io_add_watch
 
622
                                    (sys.stdin.fileno(),
 
623
                                     gobject.IO_IN,
 
624
                                     self.process_input))
627
625
        self.main_loop.run()
628
626
        # Main loop has finished, we should close everything now
629
 
        GLib.source_remove(self._input_callback_tag)
630
 
        with warnings.catch_warnings():
631
 
            warnings.simplefilter("ignore", BytesWarning)
632
 
            self.screen.stop()
633
 
 
 
627
        gobject.source_remove(self._input_callback_tag)
 
628
        self.screen.stop()
 
629
    
634
630
    def stop(self):
635
631
        self.main_loop.quit()
636
 
        log.removeHandler(self.loghandler)
637
 
        log.propagate = self.orig_log_propagate
638
 
 
 
632
    
639
633
    def process_input(self, source, condition):
640
634
        keys = self.screen.get_input()
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
 
                        }
 
635
        translations = { "ctrl n": "down",      # Emacs
 
636
                         "ctrl p": "up",        # Emacs
 
637
                         "ctrl v": "page down", # Emacs
 
638
                         "meta v": "page up",   # Emacs
 
639
                         " ": "page down",      # less
 
640
                         "f": "page down",      # less
 
641
                         "b": "page up",        # less
 
642
                         "j": "down",           # vi
 
643
                         "k": "up",             # vi
 
644
                         }
651
645
        for key in keys:
652
646
            try:
653
647
                key = translations[key]
654
648
            except KeyError:    # :-)
655
649
                pass
656
 
 
 
650
            
657
651
            if key == "q" or key == "Q":
658
652
                self.stop()
659
653
                break
673
667
                if not self.log_visible:
674
668
                    self.log_visible = True
675
669
                    self.rebuild()
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
 
                                   ))))
 
670
                self.log_message_raw(("bold",
 
671
                                      "  ".
 
672
                                      join(("q: Quit",
 
673
                                            "?: Help",
 
674
                                            "l: Log window toggle",
 
675
                                            "TAB: Switch window",
 
676
                                            "w: Wrap (log lines)",
 
677
                                            "v: Toggle verbose log",
 
678
                                            ))))
 
679
                self.log_message_raw(("bold",
 
680
                                      "  "
 
681
                                      .join(("Clients:",
 
682
                                             "+: Enable",
 
683
                                             "-: Disable",
 
684
                                             "R: Remove",
 
685
                                             "s: Start new checker",
 
686
                                             "S: Stop checker",
 
687
                                             "C: Checker OK",
 
688
                                             "a: Approve",
 
689
                                             "d: Deny"))))
695
690
                self.refresh()
696
691
            elif key == "tab":
697
692
                if self.topwidget.get_focus() is self.logbox:
700
695
                    self.topwidget.set_focus(self.logbox)
701
696
                self.refresh()
702
697
            elif key == "v":
703
 
                if log.level < logging.INFO:
704
 
                    log.setLevel(logging.INFO)
705
 
                    log.info("Verbose mode: Off")
 
698
                if self.log_level == 0:
 
699
                    self.log_level = 1
 
700
                    self.log_message("Verbose mode: Off")
706
701
                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
 
702
                    self.log_level = 0
 
703
                    self.log_message("Verbose mode: On")
 
704
            #elif (key == "end" or key == "meta >" or key == "G"
 
705
            #      or key == ">"):
 
706
            #    pass            # xxx end-of-buffer
 
707
            #elif (key == "home" or key == "meta <" or key == "g"
 
708
            #      or key == "<"):
 
709
            #    pass            # xxx beginning-of-buffer
 
710
            #elif key == "ctrl e" or key == "$":
 
711
            #    pass            # xxx move-end-of-line
 
712
            #elif key == "ctrl a" or key == "^":
 
713
            #    pass            # xxx move-beginning-of-line
 
714
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
715
            #    pass            # xxx left
 
716
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
717
            #    pass            # xxx right
 
718
            #elif key == "a":
 
719
            #    pass            # scroll up log
 
720
            #elif key == "z":
 
721
            #    pass            # scroll down log
727
722
            elif self.topwidget.selectable():
728
723
                self.topwidget.keypress(self.size, key)
729
724
                self.refresh()
730
725
        return True
731
726
 
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
 
 
746
727
ui = UserInterface()
747
728
try:
748
729
    ui.run()
749
730
except KeyboardInterrupt:
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()
 
731
    ui.screen.stop()
 
732
except Exception as e:
 
733
    ui.log_message(str(e))
 
734
    ui.screen.stop()
757
735
    raise