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  • Committer: Teddy Hogeborn
  • Date: 2015-05-31 15:56:58 UTC
  • mto: (237.7.594 trunk)
  • mto: This revision was merged to the branch mainline in revision 325.
  • Revision ID: teddy@recompile.se-20150531155658-l7znu7zlqr2dmuwd
mandos: Generate better messages in exceptions.

mandos (ProxyClient.__init__): Include fingerprint in KeyError().
(rfc3339_duration_to_delta): Include duration in ValueError().

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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
# 
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
 
    __metaclass__ = type
51
52
    str = unicode
52
53
 
53
 
log = logging.getLogger(os.path.basename(sys.argv[0]))
54
 
logging.basicConfig(level="NOTSET", # Show all messages
55
 
                    format="%(message)s") # Show basic log messages
56
 
 
57
 
logging.captureWarnings(True)   # Show warnings via the logging system
58
 
 
59
 
locale.setlocale(locale.LC_ALL, "")
60
 
 
61
 
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)
62
58
 
63
59
# Some useful constants
64
 
domain = "se.recompile"
65
 
server_interface = domain + ".Mandos"
66
 
client_interface = domain + ".Mandos.Client"
67
 
version = "1.8.14"
68
 
 
69
 
try:
70
 
    dbus.OBJECT_MANAGER_IFACE
71
 
except AttributeError:
72
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
73
 
 
 
60
domain = 'se.recompile'
 
61
server_interface = domain + '.Mandos'
 
62
client_interface = domain + '.Mandos.Client'
 
63
version = "1.6.9"
74
64
 
75
65
def isoformat_to_datetime(iso):
76
66
    "Parse an ISO 8601 date string to a datetime.datetime()"
85
75
                             int(day),
86
76
                             int(hour),
87
77
                             int(minute),
88
 
                             int(second),            # Whole seconds
89
 
                             int(fraction*1000000))  # Microseconds
90
 
 
91
 
 
92
 
class MandosClientPropertyCache:
 
78
                             int(second),           # Whole seconds
 
79
                             int(fraction*1000000)) # Microseconds
 
80
 
 
81
class MandosClientPropertyCache(object):
93
82
    """This wraps a Mandos Client D-Bus proxy object, caches the
94
83
    properties and calls a hook function when any of them are
95
84
    changed.
96
85
    """
97
86
    def __init__(self, proxy_object=None, properties=None, **kwargs):
98
 
        self.proxy = proxy_object  # Mandos Client proxy object
 
87
        self.proxy = proxy_object # Mandos Client proxy object
99
88
        self.properties = dict() if properties is None else properties
100
89
        self.property_changed_match = (
101
90
            self.proxy.connect_to_signal("PropertiesChanged",
102
91
                                         self.properties_changed,
103
92
                                         dbus.PROPERTIES_IFACE,
104
93
                                         byte_arrays=True))
105
 
 
 
94
        
106
95
        if properties is None:
107
 
            self.properties.update(self.proxy.GetAll(
108
 
                client_interface,
109
 
                dbus_interface=dbus.PROPERTIES_IFACE))
110
 
 
 
96
            self.properties.update(
 
97
                self.proxy.GetAll(client_interface,
 
98
                                  dbus_interface
 
99
                                  = dbus.PROPERTIES_IFACE))
 
100
        
111
101
        super(MandosClientPropertyCache, self).__init__(**kwargs)
112
 
 
 
102
    
113
103
    def properties_changed(self, interface, properties, invalidated):
114
104
        """This is called whenever we get a PropertiesChanged signal
115
105
        It updates the changed properties in the "properties" dict.
116
106
        """
117
107
        # Update properties dict with new value
118
 
        if interface == client_interface:
119
 
            self.properties.update(properties)
120
 
 
 
108
        self.properties.update(properties)
 
109
    
121
110
    def delete(self):
122
111
        self.property_changed_match.remove()
123
112
 
125
114
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
126
115
    """A Mandos Client which is visible on the screen.
127
116
    """
128
 
 
 
117
    
129
118
    def __init__(self, server_proxy_object=None, update_hook=None,
130
 
                 delete_hook=None, **kwargs):
 
119
                 delete_hook=None, logger=None, **kwargs):
131
120
        # Called on update
132
121
        self.update_hook = update_hook
133
122
        # Called on delete
134
123
        self.delete_hook = delete_hook
135
124
        # Mandos Server proxy object
136
125
        self.server_proxy_object = server_proxy_object
137
 
 
 
126
        # Logger
 
127
        self.logger = logger
 
128
        
138
129
        self._update_timer_callback_tag = None
139
 
 
 
130
        
140
131
        # The widget shown normally
141
132
        self._text_widget = urwid.Text("")
142
133
        # The widget shown when we have focus
144
135
        super(MandosClientWidget, self).__init__(**kwargs)
145
136
        self.update()
146
137
        self.opened = False
147
 
 
 
138
        
148
139
        self.match_objects = (
149
140
            self.proxy.connect_to_signal("CheckerCompleted",
150
141
                                         self.checker_completed,
166
157
                                         self.rejected,
167
158
                                         client_interface,
168
159
                                         byte_arrays=True))
169
 
        log.debug("Created client %s", self.properties["Name"])
170
 
 
 
160
        self.logger('Created client {}'
 
161
                    .format(self.properties["Name"]), level=0)
 
162
    
171
163
    def using_timer(self, flag):
172
164
        """Call this method with True or False when timer should be
173
165
        activated or deactivated.
174
166
        """
175
167
        if flag and self._update_timer_callback_tag is None:
176
168
            # Will update the shown timer value every second
177
 
            self._update_timer_callback_tag = (
178
 
                GLib.timeout_add(1000,
179
 
                                 glib_safely(self.update_timer)))
 
169
            self._update_timer_callback_tag = (gobject.timeout_add
 
170
                                               (1000,
 
171
                                                self.update_timer))
180
172
        elif not (flag or self._update_timer_callback_tag is None):
181
 
            GLib.source_remove(self._update_timer_callback_tag)
 
173
            gobject.source_remove(self._update_timer_callback_tag)
182
174
            self._update_timer_callback_tag = None
183
 
 
 
175
    
184
176
    def checker_completed(self, exitstatus, condition, command):
185
177
        if exitstatus == 0:
186
 
            log.debug('Checker for client %s (command "%s")'
187
 
                      " succeeded", self.properties["Name"], command)
 
178
            self.logger('Checker for client {} (command "{}")'
 
179
                        ' succeeded'.format(self.properties["Name"],
 
180
                                            command), level=0)
188
181
            self.update()
189
182
            return
190
183
        # Checker failed
191
184
        if os.WIFEXITED(condition):
192
 
            log.info('Checker for client %s (command "%s") failed'
193
 
                     " with exit code %d", self.properties["Name"],
194
 
                     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)))
195
189
        elif os.WIFSIGNALED(condition):
196
 
            log.info('Checker for client %s (command "%s") was'
197
 
                     " killed by signal %d", self.properties["Name"],
198
 
                     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"]))
199
202
        self.update()
200
 
 
 
203
    
201
204
    def checker_started(self, command):
202
205
        """Server signals that a checker started."""
203
 
        log.debug('Client %s started checker "%s"',
204
 
                  self.properties["Name"], command)
205
 
 
 
206
        self.logger('Client {} started checker "{}"'
 
207
                    .format(self.properties["Name"],
 
208
                            command), level=0)
 
209
    
206
210
    def got_secret(self):
207
 
        log.info("Client %s received its secret",
208
 
                 self.properties["Name"])
209
 
 
 
211
        self.logger('Client {} received its secret'
 
212
                    .format(self.properties["Name"]))
 
213
    
210
214
    def need_approval(self, timeout, default):
211
215
        if not default:
212
 
            message = "Client %s needs approval within %f seconds"
 
216
            message = 'Client {} needs approval within {} seconds'
213
217
        else:
214
 
            message = "Client %s will get its secret in %f seconds"
215
 
        log.info(message, self.properties["Name"], timeout/1000)
216
 
 
 
218
            message = 'Client {} will get its secret in {} seconds'
 
219
        self.logger(message.format(self.properties["Name"],
 
220
                                   timeout/1000))
 
221
    
217
222
    def rejected(self, reason):
218
 
        log.info("Client %s was rejected; reason: %s",
219
 
                 self.properties["Name"], reason)
220
 
 
 
223
        self.logger('Client {} was rejected; reason: {}'
 
224
                    .format(self.properties["Name"], reason))
 
225
    
221
226
    def selectable(self):
222
227
        """Make this a "selectable" widget.
223
228
        This overrides the method from urwid.FlowWidget."""
224
229
        return True
225
 
 
 
230
    
226
231
    def rows(self, maxcolrow, focus=False):
227
232
        """How many rows this widget will occupy might depend on
228
233
        whether we have focus or not.
229
234
        This overrides the method from urwid.FlowWidget"""
230
235
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
231
 
 
 
236
    
232
237
    def current_widget(self, focus=False):
233
238
        if focus or self.opened:
234
239
            return self._focus_widget
235
240
        return self._widget
236
 
 
 
241
    
237
242
    def update(self):
238
243
        "Called when what is visible on the screen should be updated."
239
244
        # How to add standout mode to a style
240
 
        with_standout = {"normal": "standout",
241
 
                         "bold": "bold-standout",
242
 
                         "underline-blink":
243
 
                         "underline-blink-standout",
244
 
                         "bold-underline-blink":
245
 
                         "bold-underline-blink-standout",
246
 
                         }
247
 
 
 
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
        
248
253
        # Rebuild focus and non-focus widgets using current properties
249
 
 
 
254
        
250
255
        # Base part of a client. Name!
251
 
        base = "{name}: ".format(name=self.properties["Name"])
 
256
        base = '{name}: '.format(name=self.properties["Name"])
252
257
        if not self.properties["Enabled"]:
253
258
            message = "DISABLED"
254
259
            self.using_timer(False)
255
260
        elif self.properties["ApprovalPending"]:
256
 
            timeout = datetime.timedelta(
257
 
                milliseconds=self.properties["ApprovalDelay"])
 
261
            timeout = datetime.timedelta(milliseconds
 
262
                                         = self.properties
 
263
                                         ["ApprovalDelay"])
258
264
            last_approval_request = isoformat_to_datetime(
259
265
                self.properties["LastApprovalRequest"])
260
266
            if last_approval_request is not None:
276
282
                timer = datetime.timedelta(0)
277
283
            else:
278
284
                expires = (datetime.datetime.strptime
279
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
285
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
280
286
                timer = max(expires - datetime.datetime.utcnow(),
281
287
                            datetime.timedelta())
282
 
            message = ("A checker has failed! Time until client"
283
 
                       " gets disabled: {}"
 
288
            message = ('A checker has failed! Time until client'
 
289
                       ' gets disabled: {}'
284
290
                       .format(str(timer).rsplit(".", 1)[0]))
285
291
            self.using_timer(True)
286
292
        else:
287
293
            message = "enabled"
288
294
            self.using_timer(False)
289
295
        self._text = "{}{}".format(base, message)
290
 
 
 
296
        
291
297
        if not urwid.supports_unicode():
292
298
            self._text = self._text.encode("ascii", "replace")
293
299
        textlist = [("normal", self._text)]
303
309
        # Run update hook, if any
304
310
        if self.update_hook is not None:
305
311
            self.update_hook()
306
 
 
 
312
    
307
313
    def update_timer(self):
308
 
        """called by GLib. Will indefinitely loop until
309
 
        GLib.source_remove() on tag is called
310
 
        """
 
314
        """called by gobject. Will indefinitely loop until
 
315
        gobject.source_remove() on tag is called"""
311
316
        self.update()
312
317
        return True             # Keep calling this
313
 
 
 
318
    
314
319
    def delete(self, **kwargs):
315
320
        if self._update_timer_callback_tag is not None:
316
 
            GLib.source_remove(self._update_timer_callback_tag)
 
321
            gobject.source_remove(self._update_timer_callback_tag)
317
322
            self._update_timer_callback_tag = None
318
323
        for match in self.match_objects:
319
324
            match.remove()
321
326
        if self.delete_hook is not None:
322
327
            self.delete_hook(self)
323
328
        return super(MandosClientWidget, self).delete(**kwargs)
324
 
 
 
329
    
325
330
    def render(self, maxcolrow, focus=False):
326
331
        """Render differently if we have focus.
327
332
        This overrides the method from urwid.FlowWidget"""
328
333
        return self.current_widget(focus).render(maxcolrow,
329
334
                                                 focus=focus)
330
 
 
 
335
    
331
336
    def keypress(self, maxcolrow, key):
332
337
        """Handle keys.
333
338
        This overrides the method from urwid.FlowWidget"""
334
339
        if key == "+":
335
 
            self.proxy.Set(client_interface, "Enabled",
336
 
                           dbus.Boolean(True), ignore_reply=True,
337
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
340
            self.proxy.Enable(dbus_interface = client_interface,
 
341
                              ignore_reply=True)
338
342
        elif key == "-":
339
 
            self.proxy.Set(client_interface, "Enabled", False,
340
 
                           ignore_reply=True,
341
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
343
            self.proxy.Disable(dbus_interface = client_interface,
 
344
                               ignore_reply=True)
342
345
        elif key == "a":
343
346
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
344
 
                               dbus_interface=client_interface,
 
347
                               dbus_interface = client_interface,
345
348
                               ignore_reply=True)
346
349
        elif key == "d":
347
350
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
348
 
                               dbus_interface=client_interface,
 
351
                                  dbus_interface = client_interface,
349
352
                               ignore_reply=True)
350
353
        elif key == "R" or key == "_" or key == "ctrl k":
351
354
            self.server_proxy_object.RemoveClient(self.proxy
352
355
                                                  .object_path,
353
356
                                                  ignore_reply=True)
354
357
        elif key == "s":
355
 
            self.proxy.Set(client_interface, "CheckerRunning",
356
 
                           dbus.Boolean(True), ignore_reply=True,
357
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
358
            self.proxy.StartChecker(dbus_interface = client_interface,
 
359
                                    ignore_reply=True)
358
360
        elif key == "S":
359
 
            self.proxy.Set(client_interface, "CheckerRunning",
360
 
                           dbus.Boolean(False), ignore_reply=True,
361
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
361
            self.proxy.StopChecker(dbus_interface = client_interface,
 
362
                                   ignore_reply=True)
362
363
        elif key == "C":
363
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
364
            self.proxy.CheckedOK(dbus_interface = client_interface,
364
365
                                 ignore_reply=True)
365
366
        # xxx
366
367
#         elif key == "p" or key == "=":
371
372
#             self.open()
372
373
        else:
373
374
            return key
374
 
 
 
375
    
375
376
    def properties_changed(self, interface, properties, invalidated):
376
377
        """Call self.update() if any properties changed.
377
378
        This overrides the method from MandosClientPropertyCache"""
378
 
        old_values = {key: self.properties.get(key)
379
 
                      for key in properties.keys()}
 
379
        old_values = { key: self.properties.get(key)
 
380
                       for key in properties.keys() }
380
381
        super(MandosClientWidget, self).properties_changed(
381
382
            interface, properties, invalidated)
382
383
        if any(old_values[key] != self.properties.get(key)
384
385
            self.update()
385
386
 
386
387
 
387
 
def glib_safely(func, retval=True):
388
 
    def safe_func(*args, **kwargs):
389
 
        try:
390
 
            return func(*args, **kwargs)
391
 
        except Exception:
392
 
            log.exception("")
393
 
            return retval
394
 
    return safe_func
395
 
 
396
 
 
397
388
class ConstrainedListBox(urwid.ListBox):
398
389
    """Like a normal urwid.ListBox, but will consume all "up" or
399
390
    "down" key presses, thus not allowing any containing widgets to
400
391
    use them as an excuse to shift focus away from this widget.
401
392
    """
402
393
    def keypress(self, *args, **kwargs):
403
 
        ret = (super(ConstrainedListBox, self)
404
 
               .keypress(*args, **kwargs))
 
394
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
405
395
        if ret in ("up", "down"):
406
396
            return
407
397
        return ret
408
398
 
409
399
 
410
 
class UserInterface:
 
400
class UserInterface(object):
411
401
    """This is the entire user interface - the whole screen
412
402
    with boxes, lists of client widgets, etc.
413
403
    """
414
 
    def __init__(self, max_log_length=1000):
 
404
    def __init__(self, max_log_length=1000, log_level=1):
415
405
        DBusGMainLoop(set_as_default=True)
416
 
 
 
406
        
417
407
        self.screen = urwid.curses_display.Screen()
418
 
 
 
408
        
419
409
        self.screen.register_palette((
420
410
                ("normal",
421
411
                 "default", "default", None),
426
416
                ("standout",
427
417
                 "standout", "default", "standout"),
428
418
                ("bold-underline-blink",
429
 
                 "bold,underline,blink", "default",
430
 
                 "bold,underline,blink"),
 
419
                 "bold,underline,blink", "default", "bold,underline,blink"),
431
420
                ("bold-standout",
432
421
                 "bold,standout", "default", "bold,standout"),
433
422
                ("underline-blink-standout",
437
426
                 "bold,underline,blink,standout", "default",
438
427
                 "bold,underline,blink,standout"),
439
428
                ))
440
 
 
 
429
        
441
430
        if urwid.supports_unicode():
442
 
            self.divider = "─"  # \u2500
 
431
            self.divider = "─" # \u2500
 
432
            #self.divider = "━" # \u2501
443
433
        else:
444
 
            self.divider = "_"  # \u005f
445
 
 
 
434
            #self.divider = "-" # \u002d
 
435
            self.divider = "_" # \u005f
 
436
        
446
437
        self.screen.start()
447
 
 
 
438
        
448
439
        self.size = self.screen.get_cols_rows()
449
 
 
 
440
        
450
441
        self.clients = urwid.SimpleListWalker([])
451
442
        self.clients_dict = {}
452
 
 
 
443
        
453
444
        # We will add Text widgets to this list
454
 
        self.log = urwid.SimpleListWalker([])
 
445
        self.log = []
455
446
        self.max_log_length = max_log_length
456
 
 
 
447
        
 
448
        self.log_level = log_level
 
449
        
457
450
        # We keep a reference to the log widget so we can remove it
458
451
        # from the ListWalker without it getting destroyed
459
452
        self.logbox = ConstrainedListBox(self.log)
460
 
 
 
453
        
461
454
        # This keeps track of whether self.uilist currently has
462
455
        # self.logbox in it or not
463
456
        self.log_visible = True
464
457
        self.log_wrap = "any"
465
 
 
466
 
        self.loghandler = UILogHandler(self)
467
 
 
 
458
        
468
459
        self.rebuild()
469
 
        self.add_log_line(("bold",
470
 
                           "Mandos Monitor version " + version))
471
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
472
 
 
473
 
        self.busname = domain + ".Mandos"
474
 
        self.main_loop = GLib.MainLoop()
475
 
 
476
 
    def client_not_found(self, key_id, address):
477
 
        log.info("Client with address %s and key ID %s could"
478
 
                 " not be found", address, key_id)
479
 
 
 
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
    
480
473
    def rebuild(self):
481
474
        """This rebuilds the User Interface.
482
475
        Call this when the widget layout needs to change"""
483
476
        self.uilist = []
484
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
477
        #self.uilist.append(urwid.ListBox(self.clients))
485
478
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
486
479
                                                          clients),
487
 
                                       # header=urwid.Divider(),
 
480
                                       #header=urwid.Divider(),
488
481
                                       header=None,
489
 
                                       footer=urwid.Divider(
490
 
                                           div_char=self.divider)))
 
482
                                       footer=
 
483
                                       urwid.Divider(div_char=
 
484
                                                     self.divider)))
491
485
        if self.log_visible:
492
486
            self.uilist.append(self.logbox)
493
487
        self.topwidget = urwid.Pile(self.uilist)
494
 
 
495
 
    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
496
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
497
 
        if self.max_log_length:
498
 
            if len(self.log) > self.max_log_length:
499
 
                del self.log[0:(len(self.log) - self.max_log_length)]
500
 
        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),
501
506
                              coming_from="above")
502
507
        self.refresh()
503
 
 
 
508
    
504
509
    def toggle_log_display(self):
505
510
        """Toggle visibility of the log buffer."""
506
511
        self.log_visible = not self.log_visible
507
512
        self.rebuild()
508
 
        log.debug("Log visibility changed to: %s", self.log_visible)
509
 
 
 
513
        self.log_message("Log visibility changed to: {}"
 
514
                         .format(self.log_visible), level=0)
 
515
    
510
516
    def change_log_display(self):
511
517
        """Change type of log display.
512
518
        Currently, this toggles wrapping of text lines."""
516
522
            self.log_wrap = "clip"
517
523
        for textwidget in self.log:
518
524
            textwidget.set_wrap_mode(self.log_wrap)
519
 
        log.debug("Wrap mode: %s", self.log_wrap)
520
 
 
521
 
    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):
522
529
        """Find a client by its object path and remove it.
523
 
 
524
 
        This is connected to the InterfacesRemoved signal from the
 
530
        
 
531
        This is connected to the ClientRemoved signal from the
525
532
        Mandos server object."""
526
 
        if client_interface not in interfaces:
527
 
            # Not a Mandos client object; ignore
528
 
            return
529
533
        try:
530
534
            client = self.clients_dict[path]
531
535
        except KeyError:
532
536
            # not found?
533
 
            log.warning("Unknown client %s removed", path)
 
537
            self.log_message("Unknown client {!r} ({!r}) removed"
 
538
                             .format(name, path))
534
539
            return
535
540
        client.delete()
536
 
 
537
 
    def add_new_client(self, path, ifs_and_props):
538
 
        """Find a client by its object path and remove it.
539
 
 
540
 
        This is connected to the InterfacesAdded signal from the
541
 
        Mandos server object.
542
 
        """
543
 
        if client_interface not in ifs_and_props:
544
 
            # Not a Mandos client object; ignore
545
 
            return
 
541
    
 
542
    def add_new_client(self, path):
546
543
        client_proxy_object = self.bus.get_object(self.busname, path)
547
 
        self.add_client(MandosClientWidget(
548
 
            server_proxy_object=self.mandos_serv,
549
 
            proxy_object=client_proxy_object,
550
 
            update_hook=self.refresh,
551
 
            delete_hook=self.remove_client,
552
 
            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),
553
554
                        path=path)
554
 
 
 
555
    
555
556
    def add_client(self, client, path=None):
556
557
        self.clients.append(client)
557
558
        if path is None:
559
560
        self.clients_dict[path] = client
560
561
        self.clients.sort(key=lambda c: c.properties["Name"])
561
562
        self.refresh()
562
 
 
 
563
    
563
564
    def remove_client(self, client, path=None):
564
565
        self.clients.remove(client)
565
566
        if path is None:
566
567
            path = client.proxy.object_path
567
568
        del self.clients_dict[path]
568
569
        self.refresh()
569
 
 
 
570
    
570
571
    def refresh(self):
571
572
        """Redraw the screen"""
572
573
        canvas = self.topwidget.render(self.size, focus=True)
573
574
        self.screen.draw_screen(self.size, canvas)
574
 
 
 
575
    
575
576
    def run(self):
576
577
        """Start the main loop and exit when it's done."""
577
 
        log.addHandler(self.loghandler)
578
 
        self.orig_log_propagate = log.propagate
579
 
        log.propagate = False
580
 
        self.orig_log_level = log.level
581
 
        log.setLevel("INFO")
582
578
        self.bus = dbus.SystemBus()
583
579
        mandos_dbus_objc = self.bus.get_object(
584
580
            self.busname, "/", follow_name_owner_changes=True)
585
 
        self.mandos_serv = dbus.Interface(
586
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
581
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
582
                                          dbus_interface
 
583
                                          = server_interface)
587
584
        try:
588
585
            mandos_clients = (self.mandos_serv
589
586
                              .GetAllClientsWithProperties())
590
587
            if not mandos_clients:
591
 
                log.warning("Note: Server has no clients.")
 
588
                self.log_message_raw(("bold", "Note: Server has no clients."))
592
589
        except dbus.exceptions.DBusException:
593
 
            log.warning("Note: No Mandos server running.")
 
590
            self.log_message_raw(("bold", "Note: No Mandos server running."))
594
591
            mandos_clients = dbus.Dictionary()
595
 
 
 
592
        
596
593
        (self.mandos_serv
597
 
         .connect_to_signal("InterfacesRemoved",
 
594
         .connect_to_signal("ClientRemoved",
598
595
                            self.find_and_remove_client,
599
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
596
                            dbus_interface=server_interface,
600
597
                            byte_arrays=True))
601
598
        (self.mandos_serv
602
 
         .connect_to_signal("InterfacesAdded",
 
599
         .connect_to_signal("ClientAdded",
603
600
                            self.add_new_client,
604
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
601
                            dbus_interface=server_interface,
605
602
                            byte_arrays=True))
606
603
        (self.mandos_serv
607
604
         .connect_to_signal("ClientNotFound",
611
608
        for path, client in mandos_clients.items():
612
609
            client_proxy_object = self.bus.get_object(self.busname,
613
610
                                                      path)
614
 
            self.add_client(MandosClientWidget(
615
 
                server_proxy_object=self.mandos_serv,
616
 
                proxy_object=client_proxy_object,
617
 
                properties=client,
618
 
                update_hook=self.refresh,
619
 
                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),
620
622
                            path=path)
621
 
 
 
623
        
622
624
        self.refresh()
623
 
        self._input_callback_tag = (
624
 
            GLib.io_add_watch(
625
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
626
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
627
 
                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))
628
629
        self.main_loop.run()
629
630
        # Main loop has finished, we should close everything now
630
 
        GLib.source_remove(self._input_callback_tag)
631
 
        with warnings.catch_warnings():
632
 
            warnings.simplefilter("ignore", BytesWarning)
633
 
            self.screen.stop()
634
 
 
 
631
        gobject.source_remove(self._input_callback_tag)
 
632
        self.screen.stop()
 
633
    
635
634
    def stop(self):
636
635
        self.main_loop.quit()
637
 
        log.removeHandler(self.loghandler)
638
 
        log.propagate = self.orig_log_propagate
639
 
 
 
636
    
640
637
    def process_input(self, source, condition):
641
638
        keys = self.screen.get_input()
642
 
        translations = {"ctrl n": "down",       # Emacs
643
 
                        "ctrl p": "up",         # Emacs
644
 
                        "ctrl v": "page down",  # Emacs
645
 
                        "meta v": "page up",    # Emacs
646
 
                        " ": "page down",       # less
647
 
                        "f": "page down",       # less
648
 
                        "b": "page up",         # less
649
 
                        "j": "down",            # vi
650
 
                        "k": "up",              # vi
651
 
                        }
 
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
                         }
652
649
        for key in keys:
653
650
            try:
654
651
                key = translations[key]
655
652
            except KeyError:    # :-)
656
653
                pass
657
 
 
 
654
            
658
655
            if key == "q" or key == "Q":
659
656
                self.stop()
660
657
                break
674
671
                if not self.log_visible:
675
672
                    self.log_visible = True
676
673
                    self.rebuild()
677
 
                self.add_log_line(("bold",
678
 
                                   "  ".join(("q: Quit",
679
 
                                              "?: Help",
680
 
                                              "l: Log window toggle",
681
 
                                              "TAB: Switch window",
682
 
                                              "w: Wrap (log lines)",
683
 
                                              "v: Toggle verbose log",
684
 
                                   ))))
685
 
                self.add_log_line(("bold",
686
 
                                   "  ".join(("Clients:",
687
 
                                              "+: Enable",
688
 
                                              "-: Disable",
689
 
                                              "R: Remove",
690
 
                                              "s: Start new checker",
691
 
                                              "S: Stop checker",
692
 
                                              "C: Checker OK",
693
 
                                              "a: Approve",
694
 
                                              "d: Deny",
695
 
                                   ))))
 
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"))))
696
694
                self.refresh()
697
695
            elif key == "tab":
698
696
                if self.topwidget.get_focus() is self.logbox:
701
699
                    self.topwidget.set_focus(self.logbox)
702
700
                self.refresh()
703
701
            elif key == "v":
704
 
                if log.level < logging.INFO:
705
 
                    log.setLevel(logging.INFO)
706
 
                    log.info("Verbose mode: Off")
 
702
                if self.log_level == 0:
 
703
                    self.log_level = 1
 
704
                    self.log_message("Verbose mode: Off")
707
705
                else:
708
 
                    log.setLevel(logging.NOTSET)
709
 
                    log.info("Verbose mode: On")
710
 
            # elif (key == "end" or key == "meta >" or key == "G"
711
 
            #       or key == ">"):
712
 
            #     pass            # xxx end-of-buffer
713
 
            # elif (key == "home" or key == "meta <" or key == "g"
714
 
            #       or key == "<"):
715
 
            #     pass            # xxx beginning-of-buffer
716
 
            # elif key == "ctrl e" or key == "$":
717
 
            #     pass            # xxx move-end-of-line
718
 
            # elif key == "ctrl a" or key == "^":
719
 
            #     pass            # xxx move-beginning-of-line
720
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
721
 
            #     pass            # xxx left
722
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
723
 
            #     pass            # xxx right
724
 
            # elif key == "a":
725
 
            #     pass            # scroll up log
726
 
            # elif key == "z":
727
 
            #     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
728
726
            elif self.topwidget.selectable():
729
727
                self.topwidget.keypress(self.size, key)
730
728
                self.refresh()
731
729
        return True
732
730
 
733
 
 
734
 
class UILogHandler(logging.Handler):
735
 
    def __init__(self, ui, *args, **kwargs):
736
 
        self.ui = ui
737
 
        super(UILogHandler, self).__init__(*args, **kwargs)
738
 
        self.setFormatter(
739
 
            logging.Formatter("%(asctime)s: %(message)s"))
740
 
    def emit(self, record):
741
 
        msg = self.format(record)
742
 
        if record.levelno > logging.INFO:
743
 
            msg = ("bold", msg)
744
 
        self.ui.add_log_line(msg)
745
 
 
746
 
 
747
731
ui = UserInterface()
748
732
try:
749
733
    ui.run()
750
734
except KeyboardInterrupt:
751
 
    with warnings.catch_warnings():
752
 
        warnings.filterwarnings("ignore", "", BytesWarning)
753
 
        ui.screen.stop()
754
 
except Exception:
755
 
    with warnings.catch_warnings():
756
 
        warnings.filterwarnings("ignore", "", BytesWarning)
757
 
        ui.screen.stop()
 
735
    ui.screen.stop()
 
736
except Exception as e:
 
737
    ui.log_message(str(e))
 
738
    ui.screen.stop()
758
739
    raise