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  • Committer: Teddy Hogeborn
  • Date: 2014-07-15 23:52:00 UTC
  • Revision ID: teddy@recompile.se-20140715235200-4dukd7i2tvbcix61
mandos-client: Bug Fix: Fix some memory leaks.

* plugins.d/mandos-client.c (resolve_callback): Always free resolver.
  (run_network_hooks): Free the individual direntries.
  (main): When listing network interfaces and when removing the GPGME
          temp directory, free the individual direntries.

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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 © 2009-2014 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
37
 
39
38
import urwid.curses_display
40
39
import urwid
41
40
 
42
41
from dbus.mainloop.glib import DBusGMainLoop
43
 
from gi.repository import GLib
 
42
try:
 
43
    import gobject
 
44
except ImportError:
 
45
    from gi.repository import GObject as gobject
44
46
 
45
47
import dbus
46
48
 
47
49
import locale
48
50
 
49
 
import logging
50
 
 
51
 
if sys.version_info.major == 2:
 
51
if sys.version_info[0] == 2:
52
52
    str = unicode
53
53
 
54
 
log = logging.getLogger(os.path.basename(sys.argv[0]))
55
 
logging.basicConfig(level="NOTSET", # Show all messages
56
 
                    format="%(message)s") # Show basic log messages
57
 
 
58
 
logging.captureWarnings(True)   # Show warnings via the logging system
59
 
 
60
54
locale.setlocale(locale.LC_ALL, '')
61
55
 
 
56
import logging
62
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
63
58
 
64
59
# Some useful constants
65
60
domain = 'se.recompile'
66
61
server_interface = domain + '.Mandos'
67
62
client_interface = domain + '.Mandos.Client'
68
 
version = "1.8.9"
69
 
 
70
 
try:
71
 
    dbus.OBJECT_MANAGER_IFACE
72
 
except AttributeError:
73
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
74
 
 
 
63
version = "1.6.6"
75
64
 
76
65
def isoformat_to_datetime(iso):
77
66
    "Parse an ISO 8601 date string to a datetime.datetime()"
86
75
                             int(day),
87
76
                             int(hour),
88
77
                             int(minute),
89
 
                             int(second),            # Whole seconds
90
 
                             int(fraction*1000000))  # Microseconds
91
 
 
 
78
                             int(second),           # Whole seconds
 
79
                             int(fraction*1000000)) # Microseconds
92
80
 
93
81
class MandosClientPropertyCache(object):
94
82
    """This wraps a Mandos Client D-Bus proxy object, caches the
96
84
    changed.
97
85
    """
98
86
    def __init__(self, proxy_object=None, properties=None, **kwargs):
99
 
        self.proxy = proxy_object  # Mandos Client proxy object
 
87
        self.proxy = proxy_object # Mandos Client proxy object
100
88
        self.properties = dict() if properties is None else properties
101
89
        self.property_changed_match = (
102
 
            self.proxy.connect_to_signal("PropertiesChanged",
103
 
                                         self.properties_changed,
104
 
                                         dbus.PROPERTIES_IFACE,
 
90
            self.proxy.connect_to_signal("PropertyChanged",
 
91
                                         self._property_changed,
 
92
                                         client_interface,
105
93
                                         byte_arrays=True))
106
 
 
 
94
        
107
95
        if properties is None:
108
 
            self.properties.update(self.proxy.GetAll(
109
 
                client_interface,
110
 
                dbus_interface=dbus.PROPERTIES_IFACE))
111
 
 
 
96
            self.properties.update(
 
97
                self.proxy.GetAll(client_interface,
 
98
                                  dbus_interface
 
99
                                  = dbus.PROPERTIES_IFACE))
 
100
        
112
101
        super(MandosClientPropertyCache, self).__init__(**kwargs)
113
 
 
114
 
    def properties_changed(self, interface, properties, invalidated):
115
 
        """This is called whenever we get a PropertiesChanged signal
116
 
        It updates the changed properties in the "properties" dict.
 
102
    
 
103
    def _property_changed(self, property, value):
 
104
        """Helper which takes positional arguments"""
 
105
        return self.property_changed(property=property, value=value)
 
106
    
 
107
    def property_changed(self, property=None, value=None):
 
108
        """This is called whenever we get a PropertyChanged signal
 
109
        It updates the changed property in the "properties" dict.
117
110
        """
118
111
        # Update properties dict with new value
119
 
        if interface == client_interface:
120
 
            self.properties.update(properties)
121
 
 
 
112
        self.properties[property] = value
 
113
    
122
114
    def delete(self):
123
115
        self.property_changed_match.remove()
124
116
 
126
118
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
127
119
    """A Mandos Client which is visible on the screen.
128
120
    """
129
 
 
 
121
    
130
122
    def __init__(self, server_proxy_object=None, update_hook=None,
131
 
                 delete_hook=None, **kwargs):
 
123
                 delete_hook=None, logger=None, **kwargs):
132
124
        # Called on update
133
125
        self.update_hook = update_hook
134
126
        # Called on delete
135
127
        self.delete_hook = delete_hook
136
128
        # Mandos Server proxy object
137
129
        self.server_proxy_object = server_proxy_object
138
 
 
 
130
        # Logger
 
131
        self.logger = logger
 
132
        
139
133
        self._update_timer_callback_tag = None
140
 
 
 
134
        
141
135
        # The widget shown normally
142
136
        self._text_widget = urwid.Text("")
143
137
        # The widget shown when we have focus
145
139
        super(MandosClientWidget, self).__init__(**kwargs)
146
140
        self.update()
147
141
        self.opened = False
148
 
 
 
142
        
149
143
        self.match_objects = (
150
144
            self.proxy.connect_to_signal("CheckerCompleted",
151
145
                                         self.checker_completed,
167
161
                                         self.rejected,
168
162
                                         client_interface,
169
163
                                         byte_arrays=True))
170
 
        log.debug('Created client %s', self.properties["Name"])
171
 
 
 
164
        self.logger('Created client {0}'
 
165
                    .format(self.properties["Name"]), level=0)
 
166
    
172
167
    def using_timer(self, flag):
173
168
        """Call this method with True or False when timer should be
174
169
        activated or deactivated.
175
170
        """
176
171
        if flag and self._update_timer_callback_tag is None:
177
172
            # Will update the shown timer value every second
178
 
            self._update_timer_callback_tag = (
179
 
                GLib.timeout_add(1000,
180
 
                                 glib_safely(self.update_timer)))
 
173
            self._update_timer_callback_tag = (gobject.timeout_add
 
174
                                               (1000,
 
175
                                                self.update_timer))
181
176
        elif not (flag or self._update_timer_callback_tag is None):
182
 
            GLib.source_remove(self._update_timer_callback_tag)
 
177
            gobject.source_remove(self._update_timer_callback_tag)
183
178
            self._update_timer_callback_tag = None
184
 
 
 
179
    
185
180
    def checker_completed(self, exitstatus, condition, command):
186
181
        if exitstatus == 0:
187
 
            log.debug('Checker for client %s (command "%s")'
188
 
                      ' succeeded', self.properties["Name"], command)
 
182
            self.logger('Checker for client {0} (command "{1}")'
 
183
                        ' succeeded'.format(self.properties["Name"],
 
184
                                            command), level=0)
189
185
            self.update()
190
186
            return
191
187
        # Checker failed
192
188
        if os.WIFEXITED(condition):
193
 
            log.info('Checker for client %s (command "%s") failed'
194
 
                     ' with exit code %d', self.properties["Name"],
195
 
                     command, os.WEXITSTATUS(condition))
 
189
            self.logger('Checker for client {0} (command "{1}")'
 
190
                        ' failed with exit code {2}'
 
191
                        .format(self.properties["Name"], command,
 
192
                                os.WEXITSTATUS(condition)))
196
193
        elif os.WIFSIGNALED(condition):
197
 
            log.info('Checker for client %s (command "%s") was'
198
 
                     ' killed by signal %d', self.properties["Name"],
199
 
                     command, os.WTERMSIG(condition))
 
194
            self.logger('Checker for client {0} (command "{1}") was'
 
195
                        ' killed by signal {2}'
 
196
                        .format(self.properties["Name"], command,
 
197
                                os.WTERMSIG(condition)))
 
198
        elif os.WCOREDUMP(condition):
 
199
            self.logger('Checker for client {0} (command "{1}")'
 
200
                        ' dumped core'
 
201
                        .format(self.properties["Name"], command))
 
202
        else:
 
203
            self.logger('Checker for client {0} completed'
 
204
                        ' mysteriously'
 
205
                        .format(self.properties["Name"]))
200
206
        self.update()
201
 
 
 
207
    
202
208
    def checker_started(self, command):
203
209
        """Server signals that a checker started."""
204
 
        log.debug('Client %s started checker "%s"',
205
 
                  self.properties["Name"], command)
206
 
 
 
210
        self.logger('Client {0} started checker "{1}"'
 
211
                    .format(self.properties["Name"],
 
212
                            command), level=0)
 
213
    
207
214
    def got_secret(self):
208
 
        log.info("Client %s received its secret",
209
 
                 self.properties["Name"])
210
 
 
 
215
        self.logger('Client {0} received its secret'
 
216
                    .format(self.properties["Name"]))
 
217
    
211
218
    def need_approval(self, timeout, default):
212
219
        if not default:
213
 
            message = "Client %s needs approval within %f seconds"
 
220
            message = 'Client {0} needs approval within {1} seconds'
214
221
        else:
215
 
            message = "Client %s will get its secret in %f seconds"
216
 
        log.info(message, self.properties["Name"], timeout/1000)
217
 
 
 
222
            message = 'Client {0} will get its secret in {1} seconds'
 
223
        self.logger(message.format(self.properties["Name"],
 
224
                                   timeout/1000))
 
225
    
218
226
    def rejected(self, reason):
219
 
        log.info("Client %s was rejected; reason: %s",
220
 
                 self.properties["Name"], reason)
221
 
 
 
227
        self.logger('Client {0} was rejected; reason: {1}'
 
228
                    .format(self.properties["Name"], reason))
 
229
    
222
230
    def selectable(self):
223
231
        """Make this a "selectable" widget.
224
232
        This overrides the method from urwid.FlowWidget."""
225
233
        return True
226
 
 
 
234
    
227
235
    def rows(self, maxcolrow, focus=False):
228
236
        """How many rows this widget will occupy might depend on
229
237
        whether we have focus or not.
230
238
        This overrides the method from urwid.FlowWidget"""
231
239
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
232
 
 
 
240
    
233
241
    def current_widget(self, focus=False):
234
242
        if focus or self.opened:
235
243
            return self._focus_widget
236
244
        return self._widget
237
 
 
 
245
    
238
246
    def update(self):
239
247
        "Called when what is visible on the screen should be updated."
240
248
        # How to add standout mode to a style
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
 
 
 
249
        with_standout = { "normal": "standout",
 
250
                          "bold": "bold-standout",
 
251
                          "underline-blink":
 
252
                              "underline-blink-standout",
 
253
                          "bold-underline-blink":
 
254
                              "bold-underline-blink-standout",
 
255
                          }
 
256
        
249
257
        # Rebuild focus and non-focus widgets using current properties
250
 
 
 
258
        
251
259
        # Base part of a client. Name!
252
260
        base = '{name}: '.format(name=self.properties["Name"])
253
261
        if not self.properties["Enabled"]:
254
262
            message = "DISABLED"
255
263
            self.using_timer(False)
256
264
        elif self.properties["ApprovalPending"]:
257
 
            timeout = datetime.timedelta(
258
 
                milliseconds=self.properties["ApprovalDelay"])
 
265
            timeout = datetime.timedelta(milliseconds
 
266
                                         = self.properties
 
267
                                         ["ApprovalDelay"])
259
268
            last_approval_request = isoformat_to_datetime(
260
269
                self.properties["LastApprovalRequest"])
261
270
            if last_approval_request is not None:
265
274
            else:
266
275
                timer = datetime.timedelta()
267
276
            if self.properties["ApprovedByDefault"]:
268
 
                message = "Approval in {}. (d)eny?"
 
277
                message = "Approval in {0}. (d)eny?"
269
278
            else:
270
 
                message = "Denial in {}. (a)pprove?"
 
279
                message = "Denial in {0}. (a)pprove?"
271
280
            message = message.format(str(timer).rsplit(".", 1)[0])
272
281
            self.using_timer(True)
273
282
        elif self.properties["LastCheckerStatus"] != 0:
281
290
                timer = max(expires - datetime.datetime.utcnow(),
282
291
                            datetime.timedelta())
283
292
            message = ('A checker has failed! Time until client'
284
 
                       ' gets disabled: {}'
 
293
                       ' gets disabled: {0}'
285
294
                       .format(str(timer).rsplit(".", 1)[0]))
286
295
            self.using_timer(True)
287
296
        else:
288
297
            message = "enabled"
289
298
            self.using_timer(False)
290
 
        self._text = "{}{}".format(base, message)
291
 
 
 
299
        self._text = "{0}{1}".format(base, message)
 
300
        
292
301
        if not urwid.supports_unicode():
293
302
            self._text = self._text.encode("ascii", "replace")
294
303
        textlist = [("normal", self._text)]
304
313
        # Run update hook, if any
305
314
        if self.update_hook is not None:
306
315
            self.update_hook()
307
 
 
 
316
    
308
317
    def update_timer(self):
309
 
        """called by GLib. Will indefinitely loop until
310
 
        GLib.source_remove() on tag is called
311
 
        """
 
318
        """called by gobject. Will indefinitely loop until
 
319
        gobject.source_remove() on tag is called"""
312
320
        self.update()
313
321
        return True             # Keep calling this
314
 
 
 
322
    
315
323
    def delete(self, **kwargs):
316
324
        if self._update_timer_callback_tag is not None:
317
 
            GLib.source_remove(self._update_timer_callback_tag)
 
325
            gobject.source_remove(self._update_timer_callback_tag)
318
326
            self._update_timer_callback_tag = None
319
327
        for match in self.match_objects:
320
328
            match.remove()
322
330
        if self.delete_hook is not None:
323
331
            self.delete_hook(self)
324
332
        return super(MandosClientWidget, self).delete(**kwargs)
325
 
 
 
333
    
326
334
    def render(self, maxcolrow, focus=False):
327
335
        """Render differently if we have focus.
328
336
        This overrides the method from urwid.FlowWidget"""
329
337
        return self.current_widget(focus).render(maxcolrow,
330
338
                                                 focus=focus)
331
 
 
 
339
    
332
340
    def keypress(self, maxcolrow, key):
333
341
        """Handle keys.
334
342
        This overrides the method from urwid.FlowWidget"""
335
343
        if key == "+":
336
 
            self.proxy.Set(client_interface, "Enabled",
337
 
                           dbus.Boolean(True), ignore_reply=True,
338
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
344
            self.proxy.Enable(dbus_interface = client_interface,
 
345
                              ignore_reply=True)
339
346
        elif key == "-":
340
 
            self.proxy.Set(client_interface, "Enabled", False,
341
 
                           ignore_reply=True,
342
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
347
            self.proxy.Disable(dbus_interface = client_interface,
 
348
                               ignore_reply=True)
343
349
        elif key == "a":
344
350
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
345
 
                               dbus_interface=client_interface,
 
351
                               dbus_interface = client_interface,
346
352
                               ignore_reply=True)
347
353
        elif key == "d":
348
354
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
349
 
                               dbus_interface=client_interface,
 
355
                                  dbus_interface = client_interface,
350
356
                               ignore_reply=True)
351
357
        elif key == "R" or key == "_" or key == "ctrl k":
352
358
            self.server_proxy_object.RemoveClient(self.proxy
353
359
                                                  .object_path,
354
360
                                                  ignore_reply=True)
355
361
        elif key == "s":
356
 
            self.proxy.Set(client_interface, "CheckerRunning",
357
 
                           dbus.Boolean(True), ignore_reply=True,
358
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
362
            self.proxy.StartChecker(dbus_interface = client_interface,
 
363
                                    ignore_reply=True)
359
364
        elif key == "S":
360
 
            self.proxy.Set(client_interface, "CheckerRunning",
361
 
                           dbus.Boolean(False), ignore_reply=True,
362
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
365
            self.proxy.StopChecker(dbus_interface = client_interface,
 
366
                                   ignore_reply=True)
363
367
        elif key == "C":
364
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
368
            self.proxy.CheckedOK(dbus_interface = client_interface,
365
369
                                 ignore_reply=True)
366
370
        # xxx
367
371
#         elif key == "p" or key == "=":
372
376
#             self.open()
373
377
        else:
374
378
            return key
375
 
 
376
 
    def properties_changed(self, interface, properties, invalidated):
377
 
        """Call self.update() if any properties changed.
 
379
    
 
380
    def property_changed(self, property=None, **kwargs):
 
381
        """Call self.update() if old value is not new value.
378
382
        This overrides the method from MandosClientPropertyCache"""
379
 
        old_values = {key: self.properties.get(key)
380
 
                      for key in properties.keys()}
381
 
        super(MandosClientWidget, self).properties_changed(
382
 
            interface, properties, invalidated)
383
 
        if any(old_values[key] != self.properties.get(key)
384
 
               for key in old_values):
 
383
        property_name = str(property)
 
384
        old_value = self.properties.get(property_name)
 
385
        super(MandosClientWidget, self).property_changed(
 
386
            property=property, **kwargs)
 
387
        if self.properties.get(property_name) != old_value:
385
388
            self.update()
386
389
 
387
390
 
388
 
def glib_safely(func, retval=True):
389
 
    def safe_func(*args, **kwargs):
390
 
        try:
391
 
            return func(*args, **kwargs)
392
 
        except Exception:
393
 
            log.exception("")
394
 
            return retval
395
 
    return safe_func
396
 
 
397
 
 
398
391
class ConstrainedListBox(urwid.ListBox):
399
392
    """Like a normal urwid.ListBox, but will consume all "up" or
400
393
    "down" key presses, thus not allowing any containing widgets to
401
394
    use them as an excuse to shift focus away from this widget.
402
395
    """
403
396
    def keypress(self, *args, **kwargs):
404
 
        ret = (super(ConstrainedListBox, self)
405
 
               .keypress(*args, **kwargs))
 
397
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
406
398
        if ret in ("up", "down"):
407
399
            return
408
400
        return ret
412
404
    """This is the entire user interface - the whole screen
413
405
    with boxes, lists of client widgets, etc.
414
406
    """
415
 
    def __init__(self, max_log_length=1000):
 
407
    def __init__(self, max_log_length=1000, log_level=1):
416
408
        DBusGMainLoop(set_as_default=True)
417
 
 
 
409
        
418
410
        self.screen = urwid.curses_display.Screen()
419
 
 
 
411
        
420
412
        self.screen.register_palette((
421
413
                ("normal",
422
414
                 "default", "default", None),
427
419
                ("standout",
428
420
                 "standout", "default", "standout"),
429
421
                ("bold-underline-blink",
430
 
                 "bold,underline,blink", "default",
431
 
                 "bold,underline,blink"),
 
422
                 "bold,underline,blink", "default", "bold,underline,blink"),
432
423
                ("bold-standout",
433
424
                 "bold,standout", "default", "bold,standout"),
434
425
                ("underline-blink-standout",
438
429
                 "bold,underline,blink,standout", "default",
439
430
                 "bold,underline,blink,standout"),
440
431
                ))
441
 
 
 
432
        
442
433
        if urwid.supports_unicode():
443
 
            self.divider = "─"  # \u2500
 
434
            self.divider = "─" # \u2500
 
435
            #self.divider = "━" # \u2501
444
436
        else:
445
 
            self.divider = "_"  # \u005f
446
 
 
 
437
            #self.divider = "-" # \u002d
 
438
            self.divider = "_" # \u005f
 
439
        
447
440
        self.screen.start()
448
 
 
 
441
        
449
442
        self.size = self.screen.get_cols_rows()
450
 
 
 
443
        
451
444
        self.clients = urwid.SimpleListWalker([])
452
445
        self.clients_dict = {}
453
 
 
 
446
        
454
447
        # We will add Text widgets to this list
455
 
        self.log = urwid.SimpleListWalker([])
 
448
        self.log = []
456
449
        self.max_log_length = max_log_length
457
 
 
 
450
        
 
451
        self.log_level = log_level
 
452
        
458
453
        # We keep a reference to the log widget so we can remove it
459
454
        # from the ListWalker without it getting destroyed
460
455
        self.logbox = ConstrainedListBox(self.log)
461
 
 
 
456
        
462
457
        # This keeps track of whether self.uilist currently has
463
458
        # self.logbox in it or not
464
459
        self.log_visible = True
465
460
        self.log_wrap = "any"
466
 
 
467
 
        self.loghandler = UILogHandler(self)
468
 
 
 
461
        
469
462
        self.rebuild()
470
 
        self.add_log_line(("bold",
471
 
                           "Mandos Monitor version " + version))
472
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
473
 
 
 
463
        self.log_message_raw(("bold",
 
464
                              "Mandos Monitor version " + version))
 
465
        self.log_message_raw(("bold",
 
466
                              "q: Quit  ?: Help"))
 
467
        
474
468
        self.busname = domain + '.Mandos'
475
 
        self.main_loop = GLib.MainLoop()
476
 
 
477
 
    def client_not_found(self, key_id, address):
478
 
        log.info("Client with address %s and key ID %s could"
479
 
                 " not be found", address, key_id)
480
 
 
 
469
        self.main_loop = gobject.MainLoop()
 
470
    
 
471
    def client_not_found(self, fingerprint, address):
 
472
        self.log_message("Client with address {0} and fingerprint"
 
473
                         " {1} could not be found"
 
474
                         .format(address, fingerprint))
 
475
    
481
476
    def rebuild(self):
482
477
        """This rebuilds the User Interface.
483
478
        Call this when the widget layout needs to change"""
484
479
        self.uilist = []
485
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
480
        #self.uilist.append(urwid.ListBox(self.clients))
486
481
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
487
482
                                                          clients),
488
 
                                       # header=urwid.Divider(),
 
483
                                       #header=urwid.Divider(),
489
484
                                       header=None,
490
 
                                       footer=urwid.Divider(
491
 
                                           div_char=self.divider)))
 
485
                                       footer=
 
486
                                       urwid.Divider(div_char=
 
487
                                                     self.divider)))
492
488
        if self.log_visible:
493
489
            self.uilist.append(self.logbox)
494
490
        self.topwidget = urwid.Pile(self.uilist)
495
 
 
496
 
    def add_log_line(self, markup):
 
491
    
 
492
    def log_message(self, message, level=1):
 
493
        """Log message formatted with timestamp"""
 
494
        if level < self.log_level:
 
495
            return
 
496
        timestamp = datetime.datetime.now().isoformat()
 
497
        self.log_message_raw("{0}: {1}".format(timestamp, message),
 
498
                             level=level)
 
499
    
 
500
    def log_message_raw(self, markup, level=1):
 
501
        """Add a log message to the log buffer."""
 
502
        if level < self.log_level:
 
503
            return
497
504
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
498
 
        if self.max_log_length:
499
 
            if len(self.log) > self.max_log_length:
500
 
                del self.log[0:(len(self.log) - self.max_log_length)]
501
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
505
        if (self.max_log_length
 
506
            and len(self.log) > self.max_log_length):
 
507
            del self.log[0:len(self.log)-self.max_log_length-1]
 
508
        self.logbox.set_focus(len(self.logbox.body.contents),
502
509
                              coming_from="above")
503
510
        self.refresh()
504
 
 
 
511
    
505
512
    def toggle_log_display(self):
506
513
        """Toggle visibility of the log buffer."""
507
514
        self.log_visible = not self.log_visible
508
515
        self.rebuild()
509
 
        log.debug("Log visibility changed to: %s", self.log_visible)
510
 
 
 
516
        self.log_message("Log visibility changed to: {0}"
 
517
                         .format(self.log_visible), level=0)
 
518
    
511
519
    def change_log_display(self):
512
520
        """Change type of log display.
513
521
        Currently, this toggles wrapping of text lines."""
517
525
            self.log_wrap = "clip"
518
526
        for textwidget in self.log:
519
527
            textwidget.set_wrap_mode(self.log_wrap)
520
 
        log.debug("Wrap mode: %s", self.log_wrap)
521
 
 
522
 
    def find_and_remove_client(self, path, interfaces):
 
528
        self.log_message("Wrap mode: {0}".format(self.log_wrap),
 
529
                         level=0)
 
530
    
 
531
    def find_and_remove_client(self, path, name):
523
532
        """Find a client by its object path and remove it.
524
 
 
525
 
        This is connected to the InterfacesRemoved signal from the
 
533
        
 
534
        This is connected to the ClientRemoved signal from the
526
535
        Mandos server object."""
527
 
        if client_interface not in interfaces:
528
 
            # Not a Mandos client object; ignore
529
 
            return
530
536
        try:
531
537
            client = self.clients_dict[path]
532
538
        except KeyError:
533
539
            # not found?
534
 
            log.warning("Unknown client %s removed", path)
 
540
            self.log_message("Unknown client {0!r} ({1!r}) removed"
 
541
                             .format(name, path))
535
542
            return
536
543
        client.delete()
537
 
 
538
 
    def add_new_client(self, path, ifs_and_props):
539
 
        """Find a client by its object path and remove it.
540
 
 
541
 
        This is connected to the InterfacesAdded signal from the
542
 
        Mandos server object.
543
 
        """
544
 
        if client_interface not in ifs_and_props:
545
 
            # Not a Mandos client object; ignore
546
 
            return
 
544
    
 
545
    def add_new_client(self, path):
547
546
        client_proxy_object = self.bus.get_object(self.busname, path)
548
 
        self.add_client(MandosClientWidget(
549
 
            server_proxy_object=self.mandos_serv,
550
 
            proxy_object=client_proxy_object,
551
 
            update_hook=self.refresh,
552
 
            delete_hook=self.remove_client,
553
 
            properties=dict(ifs_and_props[client_interface])),
 
547
        self.add_client(MandosClientWidget(server_proxy_object
 
548
                                           =self.mandos_serv,
 
549
                                           proxy_object
 
550
                                           =client_proxy_object,
 
551
                                           update_hook
 
552
                                           =self.refresh,
 
553
                                           delete_hook
 
554
                                           =self.remove_client,
 
555
                                           logger
 
556
                                           =self.log_message),
554
557
                        path=path)
555
 
 
 
558
    
556
559
    def add_client(self, client, path=None):
557
560
        self.clients.append(client)
558
561
        if path is None:
560
563
        self.clients_dict[path] = client
561
564
        self.clients.sort(key=lambda c: c.properties["Name"])
562
565
        self.refresh()
563
 
 
 
566
    
564
567
    def remove_client(self, client, path=None):
565
568
        self.clients.remove(client)
566
569
        if path is None:
567
570
            path = client.proxy.object_path
568
571
        del self.clients_dict[path]
569
572
        self.refresh()
570
 
 
 
573
    
571
574
    def refresh(self):
572
575
        """Redraw the screen"""
573
576
        canvas = self.topwidget.render(self.size, focus=True)
574
577
        self.screen.draw_screen(self.size, canvas)
575
 
 
 
578
    
576
579
    def run(self):
577
580
        """Start the main loop and exit when it's done."""
578
 
        log.addHandler(self.loghandler)
579
 
        self.orig_log_propagate = log.propagate
580
 
        log.propagate = False
581
 
        self.orig_log_level = log.level
582
 
        log.setLevel("INFO")
583
581
        self.bus = dbus.SystemBus()
584
582
        mandos_dbus_objc = self.bus.get_object(
585
583
            self.busname, "/", follow_name_owner_changes=True)
586
 
        self.mandos_serv = dbus.Interface(
587
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
584
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
585
                                          dbus_interface
 
586
                                          = server_interface)
588
587
        try:
589
588
            mandos_clients = (self.mandos_serv
590
589
                              .GetAllClientsWithProperties())
591
590
            if not mandos_clients:
592
 
                log.warning("Note: Server has no clients.")
 
591
                self.log_message_raw(("bold", "Note: Server has no clients."))
593
592
        except dbus.exceptions.DBusException:
594
 
            log.warning("Note: No Mandos server running.")
 
593
            self.log_message_raw(("bold", "Note: No Mandos server running."))
595
594
            mandos_clients = dbus.Dictionary()
596
 
 
 
595
        
597
596
        (self.mandos_serv
598
 
         .connect_to_signal("InterfacesRemoved",
 
597
         .connect_to_signal("ClientRemoved",
599
598
                            self.find_and_remove_client,
600
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
599
                            dbus_interface=server_interface,
601
600
                            byte_arrays=True))
602
601
        (self.mandos_serv
603
 
         .connect_to_signal("InterfacesAdded",
 
602
         .connect_to_signal("ClientAdded",
604
603
                            self.add_new_client,
605
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
604
                            dbus_interface=server_interface,
606
605
                            byte_arrays=True))
607
606
        (self.mandos_serv
608
607
         .connect_to_signal("ClientNotFound",
612
611
        for path, client in mandos_clients.items():
613
612
            client_proxy_object = self.bus.get_object(self.busname,
614
613
                                                      path)
615
 
            self.add_client(MandosClientWidget(
616
 
                server_proxy_object=self.mandos_serv,
617
 
                proxy_object=client_proxy_object,
618
 
                properties=client,
619
 
                update_hook=self.refresh,
620
 
                delete_hook=self.remove_client),
 
614
            self.add_client(MandosClientWidget(server_proxy_object
 
615
                                               =self.mandos_serv,
 
616
                                               proxy_object
 
617
                                               =client_proxy_object,
 
618
                                               properties=client,
 
619
                                               update_hook
 
620
                                               =self.refresh,
 
621
                                               delete_hook
 
622
                                               =self.remove_client,
 
623
                                               logger
 
624
                                               =self.log_message),
621
625
                            path=path)
622
 
 
 
626
        
623
627
        self.refresh()
624
 
        self._input_callback_tag = (
625
 
            GLib.io_add_watch(
626
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
627
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
628
 
                glib_safely(self.process_input)))
 
628
        self._input_callback_tag = (gobject.io_add_watch
 
629
                                    (sys.stdin.fileno(),
 
630
                                     gobject.IO_IN,
 
631
                                     self.process_input))
629
632
        self.main_loop.run()
630
633
        # Main loop has finished, we should close everything now
631
 
        GLib.source_remove(self._input_callback_tag)
632
 
        with warnings.catch_warnings():
633
 
            warnings.simplefilter("ignore", BytesWarning)
634
 
            self.screen.stop()
635
 
 
 
634
        gobject.source_remove(self._input_callback_tag)
 
635
        self.screen.stop()
 
636
    
636
637
    def stop(self):
637
638
        self.main_loop.quit()
638
 
        log.removeHandler(self.loghandler)
639
 
        log.propagate = self.orig_log_propagate
640
 
 
 
639
    
641
640
    def process_input(self, source, condition):
642
641
        keys = self.screen.get_input()
643
 
        translations = {"ctrl n": "down",       # Emacs
644
 
                        "ctrl p": "up",         # Emacs
645
 
                        "ctrl v": "page down",  # Emacs
646
 
                        "meta v": "page up",    # Emacs
647
 
                        " ": "page down",       # less
648
 
                        "f": "page down",       # less
649
 
                        "b": "page up",         # less
650
 
                        "j": "down",            # vi
651
 
                        "k": "up",              # vi
652
 
                        }
 
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
                         }
653
652
        for key in keys:
654
653
            try:
655
654
                key = translations[key]
656
655
            except KeyError:    # :-)
657
656
                pass
658
 
 
 
657
            
659
658
            if key == "q" or key == "Q":
660
659
                self.stop()
661
660
                break
662
661
            elif key == "window resize":
663
662
                self.size = self.screen.get_cols_rows()
664
663
                self.refresh()
665
 
            elif key == "ctrl l":
666
 
                self.screen.clear()
 
664
            elif key == "\f":  # Ctrl-L
667
665
                self.refresh()
668
666
            elif key == "l" or key == "D":
669
667
                self.toggle_log_display()
675
673
                if not self.log_visible:
676
674
                    self.log_visible = True
677
675
                    self.rebuild()
678
 
                self.add_log_line(("bold",
679
 
                                   "  ".join(("q: Quit",
680
 
                                              "?: Help",
681
 
                                              "l: Log window toggle",
682
 
                                              "TAB: Switch window",
683
 
                                              "w: Wrap (log lines)",
684
 
                                              "v: Toggle verbose log",
685
 
                                   ))))
686
 
                self.add_log_line(("bold",
687
 
                                   "  ".join(("Clients:",
688
 
                                              "+: Enable",
689
 
                                              "-: Disable",
690
 
                                              "R: Remove",
691
 
                                              "s: Start new checker",
692
 
                                              "S: Stop checker",
693
 
                                              "C: Checker OK",
694
 
                                              "a: Approve",
695
 
                                              "d: Deny",
696
 
                                   ))))
 
676
                self.log_message_raw(("bold",
 
677
                                      "  ".
 
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.log_message_raw(("bold",
 
686
                                      "  "
 
687
                                      .join(("Clients:",
 
688
                                             "+: Enable",
 
689
                                             "-: Disable",
 
690
                                             "R: Remove",
 
691
                                             "s: Start new checker",
 
692
                                             "S: Stop checker",
 
693
                                             "C: Checker OK",
 
694
                                             "a: Approve",
 
695
                                             "d: Deny"))))
697
696
                self.refresh()
698
697
            elif key == "tab":
699
698
                if self.topwidget.get_focus() is self.logbox:
702
701
                    self.topwidget.set_focus(self.logbox)
703
702
                self.refresh()
704
703
            elif key == "v":
705
 
                if log.level < logging.INFO:
706
 
                    log.setLevel(logging.INFO)
707
 
                    log.info("Verbose mode: Off")
 
704
                if self.log_level == 0:
 
705
                    self.log_level = 1
 
706
                    self.log_message("Verbose mode: Off")
708
707
                else:
709
 
                    log.setLevel(logging.NOTSET)
710
 
                    log.info("Verbose mode: On")
711
 
            # elif (key == "end" or key == "meta >" or key == "G"
712
 
            #       or key == ">"):
713
 
            #     pass            # xxx end-of-buffer
714
 
            # elif (key == "home" or key == "meta <" or key == "g"
715
 
            #       or key == "<"):
716
 
            #     pass            # xxx beginning-of-buffer
717
 
            # elif key == "ctrl e" or key == "$":
718
 
            #     pass            # xxx move-end-of-line
719
 
            # elif key == "ctrl a" or key == "^":
720
 
            #     pass            # xxx move-beginning-of-line
721
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
722
 
            #     pass            # xxx left
723
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
724
 
            #     pass            # xxx right
725
 
            # elif key == "a":
726
 
            #     pass            # scroll up log
727
 
            # elif key == "z":
728
 
            #     pass            # scroll down log
 
708
                    self.log_level = 0
 
709
                    self.log_message("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
729
728
            elif self.topwidget.selectable():
730
729
                self.topwidget.keypress(self.size, key)
731
730
                self.refresh()
732
731
        return True
733
732
 
734
 
 
735
 
class UILogHandler(logging.Handler):
736
 
    def __init__(self, ui, *args, **kwargs):
737
 
        self.ui = ui
738
 
        super(UILogHandler, self).__init__(*args, **kwargs)
739
 
        self.setFormatter(
740
 
            logging.Formatter("%(asctime)s: %(message)s"))
741
 
    def emit(self, record):
742
 
        msg = self.format(record)
743
 
        if record.levelno > logging.INFO:
744
 
            msg = ("bold", msg)
745
 
        self.ui.add_log_line(msg)
746
 
 
747
 
 
748
733
ui = UserInterface()
749
734
try:
750
735
    ui.run()
751
736
except KeyboardInterrupt:
752
 
    with warnings.catch_warnings():
753
 
        warnings.filterwarnings("ignore", "", BytesWarning)
754
 
        ui.screen.stop()
755
 
except Exception:
756
 
    with warnings.catch_warnings():
757
 
        warnings.filterwarnings("ignore", "", BytesWarning)
758
 
        ui.screen.stop()
 
737
    ui.screen.stop()
 
738
except Exception as e:
 
739
    ui.log_message(str(e))
 
740
    ui.screen.stop()
759
741
    raise