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  • Committer: Teddy Hogeborn
  • Date: 2019-11-03 18:58:44 UTC
  • Revision ID: teddy@recompile.se-20191103185844-r5ghn595fdzefg4w
mandos-monitor: Formatting changes only

* mandos-monitor: Re-order imports and normally use double quotes
                  instead of single quotes for strings.

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mandos-monitor
1
 
#!/usr/bin/python
 
1
#!/usr/bin/python3 -bb
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
# 
 
3
#
4
4
# Mandos Monitor - Control and monitor the Mandos server
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
 
5
#
 
6
# Copyright © 2009-2019 Teddy Hogeborn
 
7
# Copyright © 2009-2019 Björn Påhlsson
 
8
#
 
9
# This file is part of Mandos.
 
10
#
 
11
# Mandos is free software: you can redistribute it and/or modify it
 
12
# under the terms of the GNU General Public License as published by
11
13
# the Free Software Foundation, either version 3 of the License, or
12
14
# (at your option) any later version.
13
15
#
14
 
#     This program is distributed in the hope that it will be useful,
15
 
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
 
16
#     Mandos is distributed in the hope that it will be useful, but
 
17
#     WITHOUT ANY WARRANTY; without even the implied warranty of
16
18
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
19
#     GNU General Public License for more details.
18
 
# 
 
20
#
19
21
# You should have received a copy of the GNU General Public License
20
 
# along with this program.  If not, see
21
 
# <http://www.gnu.org/licenses/>.
22
 
# 
 
22
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
23
#
23
24
# Contact the authors at <mandos@recompile.se>.
24
 
# 
 
25
#
25
26
 
26
27
from __future__ import (division, absolute_import, print_function,
27
28
                        unicode_literals)
32
33
 
33
34
import sys
34
35
import os
35
 
 
 
36
import warnings
36
37
import datetime
 
38
import locale
 
39
import logging
37
40
 
38
41
import urwid.curses_display
39
42
import urwid
40
43
 
41
44
from dbus.mainloop.glib import DBusGMainLoop
42
 
try:
43
 
    import gobject
44
 
except ImportError:
45
 
    from gi.repository import GObject as gobject
 
45
from gi.repository import GLib
46
46
 
47
47
import dbus
48
48
 
49
 
import locale
50
 
 
51
49
if sys.version_info.major == 2:
52
50
    str = unicode
53
51
 
54
 
locale.setlocale(locale.LC_ALL, '')
55
 
 
56
 
import logging
57
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
52
log = logging.getLogger(os.path.basename(sys.argv[0]))
 
53
logging.basicConfig(level="NOTSET", # Show all messages
 
54
                    format="%(message)s") # Show basic log messages
 
55
 
 
56
logging.captureWarnings(True)   # Show warnings via the logging system
 
57
 
 
58
locale.setlocale(locale.LC_ALL, "")
 
59
 
 
60
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
58
61
 
59
62
# Some useful constants
60
 
domain = 'se.recompile'
61
 
server_interface = domain + '.Mandos'
62
 
client_interface = domain + '.Mandos.Client'
63
 
version = "1.6.9"
 
63
domain = "se.recompile"
 
64
server_interface = domain + ".Mandos"
 
65
client_interface = domain + ".Mandos.Client"
 
66
version = "1.8.9"
 
67
 
 
68
try:
 
69
    dbus.OBJECT_MANAGER_IFACE
 
70
except AttributeError:
 
71
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
72
 
64
73
 
65
74
def isoformat_to_datetime(iso):
66
75
    "Parse an ISO 8601 date string to a datetime.datetime()"
75
84
                             int(day),
76
85
                             int(hour),
77
86
                             int(minute),
78
 
                             int(second),           # Whole seconds
79
 
                             int(fraction*1000000)) # Microseconds
 
87
                             int(second),            # Whole seconds
 
88
                             int(fraction*1000000))  # Microseconds
 
89
 
80
90
 
81
91
class MandosClientPropertyCache(object):
82
92
    """This wraps a Mandos Client D-Bus proxy object, caches the
84
94
    changed.
85
95
    """
86
96
    def __init__(self, proxy_object=None, properties=None, **kwargs):
87
 
        self.proxy = proxy_object # Mandos Client proxy object
 
97
        self.proxy = proxy_object  # Mandos Client proxy object
88
98
        self.properties = dict() if properties is None else properties
89
99
        self.property_changed_match = (
90
100
            self.proxy.connect_to_signal("PropertiesChanged",
91
101
                                         self.properties_changed,
92
102
                                         dbus.PROPERTIES_IFACE,
93
103
                                         byte_arrays=True))
94
 
        
 
104
 
95
105
        if properties is None:
96
 
            self.properties.update(
97
 
                self.proxy.GetAll(client_interface,
98
 
                                  dbus_interface
99
 
                                  = dbus.PROPERTIES_IFACE))
100
 
        
 
106
            self.properties.update(self.proxy.GetAll(
 
107
                client_interface,
 
108
                dbus_interface=dbus.PROPERTIES_IFACE))
 
109
 
101
110
        super(MandosClientPropertyCache, self).__init__(**kwargs)
102
 
    
 
111
 
103
112
    def properties_changed(self, interface, properties, invalidated):
104
113
        """This is called whenever we get a PropertiesChanged signal
105
114
        It updates the changed properties in the "properties" dict.
106
115
        """
107
116
        # Update properties dict with new value
108
 
        self.properties.update(properties)
109
 
    
 
117
        if interface == client_interface:
 
118
            self.properties.update(properties)
 
119
 
110
120
    def delete(self):
111
121
        self.property_changed_match.remove()
112
122
 
114
124
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
115
125
    """A Mandos Client which is visible on the screen.
116
126
    """
117
 
    
 
127
 
118
128
    def __init__(self, server_proxy_object=None, update_hook=None,
119
 
                 delete_hook=None, logger=None, **kwargs):
 
129
                 delete_hook=None, **kwargs):
120
130
        # Called on update
121
131
        self.update_hook = update_hook
122
132
        # Called on delete
123
133
        self.delete_hook = delete_hook
124
134
        # Mandos Server proxy object
125
135
        self.server_proxy_object = server_proxy_object
126
 
        # Logger
127
 
        self.logger = logger
128
 
        
 
136
 
129
137
        self._update_timer_callback_tag = None
130
 
        
 
138
 
131
139
        # The widget shown normally
132
140
        self._text_widget = urwid.Text("")
133
141
        # The widget shown when we have focus
135
143
        super(MandosClientWidget, self).__init__(**kwargs)
136
144
        self.update()
137
145
        self.opened = False
138
 
        
 
146
 
139
147
        self.match_objects = (
140
148
            self.proxy.connect_to_signal("CheckerCompleted",
141
149
                                         self.checker_completed,
157
165
                                         self.rejected,
158
166
                                         client_interface,
159
167
                                         byte_arrays=True))
160
 
        self.logger('Created client {}'
161
 
                    .format(self.properties["Name"]), level=0)
162
 
    
 
168
        log.debug("Created client %s", self.properties["Name"])
 
169
 
163
170
    def using_timer(self, flag):
164
171
        """Call this method with True or False when timer should be
165
172
        activated or deactivated.
166
173
        """
167
174
        if flag and self._update_timer_callback_tag is None:
168
175
            # Will update the shown timer value every second
169
 
            self._update_timer_callback_tag = (gobject.timeout_add
170
 
                                               (1000,
171
 
                                                self.update_timer))
 
176
            self._update_timer_callback_tag = (
 
177
                GLib.timeout_add(1000,
 
178
                                 glib_safely(self.update_timer)))
172
179
        elif not (flag or self._update_timer_callback_tag is None):
173
 
            gobject.source_remove(self._update_timer_callback_tag)
 
180
            GLib.source_remove(self._update_timer_callback_tag)
174
181
            self._update_timer_callback_tag = None
175
 
    
 
182
 
176
183
    def checker_completed(self, exitstatus, condition, command):
177
184
        if exitstatus == 0:
178
 
            self.logger('Checker for client {} (command "{}")'
179
 
                        ' succeeded'.format(self.properties["Name"],
180
 
                                            command), level=0)
 
185
            log.debug('Checker for client %s (command "%s")'
 
186
                      " succeeded", self.properties["Name"], command)
181
187
            self.update()
182
188
            return
183
189
        # Checker failed
184
190
        if os.WIFEXITED(condition):
185
 
            self.logger('Checker for client {} (command "{}") failed'
186
 
                        ' with exit code {}'
187
 
                        .format(self.properties["Name"], command,
188
 
                                os.WEXITSTATUS(condition)))
 
191
            log.info('Checker for client %s (command "%s") failed'
 
192
                     " with exit code %d", self.properties["Name"],
 
193
                     command, os.WEXITSTATUS(condition))
189
194
        elif os.WIFSIGNALED(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"]))
 
195
            log.info('Checker for client %s (command "%s") was'
 
196
                     " killed by signal %d", self.properties["Name"],
 
197
                     command, os.WTERMSIG(condition))
202
198
        self.update()
203
 
    
 
199
 
204
200
    def checker_started(self, command):
205
201
        """Server signals that a checker started."""
206
 
        self.logger('Client {} started checker "{}"'
207
 
                    .format(self.properties["Name"],
208
 
                            command), level=0)
209
 
    
 
202
        log.debug('Client %s started checker "%s"',
 
203
                  self.properties["Name"], command)
 
204
 
210
205
    def got_secret(self):
211
 
        self.logger('Client {} received its secret'
212
 
                    .format(self.properties["Name"]))
213
 
    
 
206
        log.info("Client %s received its secret",
 
207
                 self.properties["Name"])
 
208
 
214
209
    def need_approval(self, timeout, default):
215
210
        if not default:
216
 
            message = 'Client {} needs approval within {} seconds'
 
211
            message = "Client %s needs approval within %f seconds"
217
212
        else:
218
 
            message = 'Client {} will get its secret in {} seconds'
219
 
        self.logger(message.format(self.properties["Name"],
220
 
                                   timeout/1000))
221
 
    
 
213
            message = "Client %s will get its secret in %f seconds"
 
214
        log.info(message, self.properties["Name"], timeout/1000)
 
215
 
222
216
    def rejected(self, reason):
223
 
        self.logger('Client {} was rejected; reason: {}'
224
 
                    .format(self.properties["Name"], reason))
225
 
    
 
217
        log.info("Client %s was rejected; reason: %s",
 
218
                 self.properties["Name"], reason)
 
219
 
226
220
    def selectable(self):
227
221
        """Make this a "selectable" widget.
228
222
        This overrides the method from urwid.FlowWidget."""
229
223
        return True
230
 
    
 
224
 
231
225
    def rows(self, maxcolrow, focus=False):
232
226
        """How many rows this widget will occupy might depend on
233
227
        whether we have focus or not.
234
228
        This overrides the method from urwid.FlowWidget"""
235
229
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
236
 
    
 
230
 
237
231
    def current_widget(self, focus=False):
238
232
        if focus or self.opened:
239
233
            return self._focus_widget
240
234
        return self._widget
241
 
    
 
235
 
242
236
    def update(self):
243
237
        "Called when what is visible on the screen should be updated."
244
238
        # How to add standout mode to a style
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
 
        
 
239
        with_standout = {"normal": "standout",
 
240
                         "bold": "bold-standout",
 
241
                         "underline-blink":
 
242
                         "underline-blink-standout",
 
243
                         "bold-underline-blink":
 
244
                         "bold-underline-blink-standout",
 
245
                         }
 
246
 
253
247
        # Rebuild focus and non-focus widgets using current properties
254
 
        
 
248
 
255
249
        # Base part of a client. Name!
256
 
        base = '{name}: '.format(name=self.properties["Name"])
 
250
        base = "{name}: ".format(name=self.properties["Name"])
257
251
        if not self.properties["Enabled"]:
258
252
            message = "DISABLED"
259
253
            self.using_timer(False)
260
254
        elif self.properties["ApprovalPending"]:
261
 
            timeout = datetime.timedelta(milliseconds
262
 
                                         = self.properties
263
 
                                         ["ApprovalDelay"])
 
255
            timeout = datetime.timedelta(
 
256
                milliseconds=self.properties["ApprovalDelay"])
264
257
            last_approval_request = isoformat_to_datetime(
265
258
                self.properties["LastApprovalRequest"])
266
259
            if last_approval_request is not None:
282
275
                timer = datetime.timedelta(0)
283
276
            else:
284
277
                expires = (datetime.datetime.strptime
285
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
278
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
286
279
                timer = max(expires - datetime.datetime.utcnow(),
287
280
                            datetime.timedelta())
288
 
            message = ('A checker has failed! Time until client'
289
 
                       ' gets disabled: {}'
 
281
            message = ("A checker has failed! Time until client"
 
282
                       " gets disabled: {}"
290
283
                       .format(str(timer).rsplit(".", 1)[0]))
291
284
            self.using_timer(True)
292
285
        else:
293
286
            message = "enabled"
294
287
            self.using_timer(False)
295
288
        self._text = "{}{}".format(base, message)
296
 
        
 
289
 
297
290
        if not urwid.supports_unicode():
298
291
            self._text = self._text.encode("ascii", "replace")
299
292
        textlist = [("normal", self._text)]
309
302
        # Run update hook, if any
310
303
        if self.update_hook is not None:
311
304
            self.update_hook()
312
 
    
 
305
 
313
306
    def update_timer(self):
314
 
        """called by gobject. Will indefinitely loop until
315
 
        gobject.source_remove() on tag is called"""
 
307
        """called by GLib. Will indefinitely loop until
 
308
        GLib.source_remove() on tag is called
 
309
        """
316
310
        self.update()
317
311
        return True             # Keep calling this
318
 
    
 
312
 
319
313
    def delete(self, **kwargs):
320
314
        if self._update_timer_callback_tag is not None:
321
 
            gobject.source_remove(self._update_timer_callback_tag)
 
315
            GLib.source_remove(self._update_timer_callback_tag)
322
316
            self._update_timer_callback_tag = None
323
317
        for match in self.match_objects:
324
318
            match.remove()
326
320
        if self.delete_hook is not None:
327
321
            self.delete_hook(self)
328
322
        return super(MandosClientWidget, self).delete(**kwargs)
329
 
    
 
323
 
330
324
    def render(self, maxcolrow, focus=False):
331
325
        """Render differently if we have focus.
332
326
        This overrides the method from urwid.FlowWidget"""
333
327
        return self.current_widget(focus).render(maxcolrow,
334
328
                                                 focus=focus)
335
 
    
 
329
 
336
330
    def keypress(self, maxcolrow, key):
337
331
        """Handle keys.
338
332
        This overrides the method from urwid.FlowWidget"""
339
333
        if key == "+":
340
 
            self.proxy.Enable(dbus_interface = client_interface,
341
 
                              ignore_reply=True)
 
334
            self.proxy.Set(client_interface, "Enabled",
 
335
                           dbus.Boolean(True), ignore_reply=True,
 
336
                           dbus_interface=dbus.PROPERTIES_IFACE)
342
337
        elif key == "-":
343
 
            self.proxy.Disable(dbus_interface = client_interface,
344
 
                               ignore_reply=True)
 
338
            self.proxy.Set(client_interface, "Enabled", False,
 
339
                           ignore_reply=True,
 
340
                           dbus_interface=dbus.PROPERTIES_IFACE)
345
341
        elif key == "a":
346
342
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
347
 
                               dbus_interface = client_interface,
 
343
                               dbus_interface=client_interface,
348
344
                               ignore_reply=True)
349
345
        elif key == "d":
350
346
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
351
 
                                  dbus_interface = client_interface,
 
347
                               dbus_interface=client_interface,
352
348
                               ignore_reply=True)
353
349
        elif key == "R" or key == "_" or key == "ctrl k":
354
350
            self.server_proxy_object.RemoveClient(self.proxy
355
351
                                                  .object_path,
356
352
                                                  ignore_reply=True)
357
353
        elif key == "s":
358
 
            self.proxy.StartChecker(dbus_interface = client_interface,
359
 
                                    ignore_reply=True)
 
354
            self.proxy.Set(client_interface, "CheckerRunning",
 
355
                           dbus.Boolean(True), ignore_reply=True,
 
356
                           dbus_interface=dbus.PROPERTIES_IFACE)
360
357
        elif key == "S":
361
 
            self.proxy.StopChecker(dbus_interface = client_interface,
362
 
                                   ignore_reply=True)
 
358
            self.proxy.Set(client_interface, "CheckerRunning",
 
359
                           dbus.Boolean(False), ignore_reply=True,
 
360
                           dbus_interface=dbus.PROPERTIES_IFACE)
363
361
        elif key == "C":
364
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
362
            self.proxy.CheckedOK(dbus_interface=client_interface,
365
363
                                 ignore_reply=True)
366
364
        # xxx
367
365
#         elif key == "p" or key == "=":
372
370
#             self.open()
373
371
        else:
374
372
            return key
375
 
    
 
373
 
376
374
    def properties_changed(self, interface, properties, invalidated):
377
375
        """Call self.update() if any properties changed.
378
376
        This overrides the method from MandosClientPropertyCache"""
379
 
        old_values = { key: self.properties.get(key)
380
 
                       for key in properties.keys() }
 
377
        old_values = {key: self.properties.get(key)
 
378
                      for key in properties.keys()}
381
379
        super(MandosClientWidget, self).properties_changed(
382
380
            interface, properties, invalidated)
383
381
        if any(old_values[key] != self.properties.get(key)
385
383
            self.update()
386
384
 
387
385
 
 
386
def glib_safely(func, retval=True):
 
387
    def safe_func(*args, **kwargs):
 
388
        try:
 
389
            return func(*args, **kwargs)
 
390
        except Exception:
 
391
            log.exception("")
 
392
            return retval
 
393
    return safe_func
 
394
 
 
395
 
388
396
class ConstrainedListBox(urwid.ListBox):
389
397
    """Like a normal urwid.ListBox, but will consume all "up" or
390
398
    "down" key presses, thus not allowing any containing widgets to
391
399
    use them as an excuse to shift focus away from this widget.
392
400
    """
393
401
    def keypress(self, *args, **kwargs):
394
 
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
402
        ret = (super(ConstrainedListBox, self)
 
403
               .keypress(*args, **kwargs))
395
404
        if ret in ("up", "down"):
396
405
            return
397
406
        return ret
401
410
    """This is the entire user interface - the whole screen
402
411
    with boxes, lists of client widgets, etc.
403
412
    """
404
 
    def __init__(self, max_log_length=1000, log_level=1):
 
413
    def __init__(self, max_log_length=1000):
405
414
        DBusGMainLoop(set_as_default=True)
406
 
        
 
415
 
407
416
        self.screen = urwid.curses_display.Screen()
408
 
        
 
417
 
409
418
        self.screen.register_palette((
410
419
                ("normal",
411
420
                 "default", "default", None),
416
425
                ("standout",
417
426
                 "standout", "default", "standout"),
418
427
                ("bold-underline-blink",
419
 
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
428
                 "bold,underline,blink", "default",
 
429
                 "bold,underline,blink"),
420
430
                ("bold-standout",
421
431
                 "bold,standout", "default", "bold,standout"),
422
432
                ("underline-blink-standout",
426
436
                 "bold,underline,blink,standout", "default",
427
437
                 "bold,underline,blink,standout"),
428
438
                ))
429
 
        
 
439
 
430
440
        if urwid.supports_unicode():
431
 
            self.divider = "─" # \u2500
432
 
            #self.divider = "━" # \u2501
 
441
            self.divider = "─"  # \u2500
433
442
        else:
434
 
            #self.divider = "-" # \u002d
435
 
            self.divider = "_" # \u005f
436
 
        
 
443
            self.divider = "_"  # \u005f
 
444
 
437
445
        self.screen.start()
438
 
        
 
446
 
439
447
        self.size = self.screen.get_cols_rows()
440
 
        
 
448
 
441
449
        self.clients = urwid.SimpleListWalker([])
442
450
        self.clients_dict = {}
443
 
        
 
451
 
444
452
        # We will add Text widgets to this list
445
 
        self.log = []
 
453
        self.log = urwid.SimpleListWalker([])
446
454
        self.max_log_length = max_log_length
447
 
        
448
 
        self.log_level = log_level
449
 
        
 
455
 
450
456
        # We keep a reference to the log widget so we can remove it
451
457
        # from the ListWalker without it getting destroyed
452
458
        self.logbox = ConstrainedListBox(self.log)
453
 
        
 
459
 
454
460
        # This keeps track of whether self.uilist currently has
455
461
        # self.logbox in it or not
456
462
        self.log_visible = True
457
463
        self.log_wrap = "any"
458
 
        
 
464
 
 
465
        self.loghandler = UILogHandler(self)
 
466
 
459
467
        self.rebuild()
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
 
    
 
468
        self.add_log_line(("bold",
 
469
                           "Mandos Monitor version " + version))
 
470
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
471
 
 
472
        self.busname = domain + ".Mandos"
 
473
        self.main_loop = GLib.MainLoop()
 
474
 
 
475
    def client_not_found(self, key_id, address):
 
476
        log.info("Client with address %s and key ID %s could"
 
477
                 " not be found", address, key_id)
 
478
 
473
479
    def rebuild(self):
474
480
        """This rebuilds the User Interface.
475
481
        Call this when the widget layout needs to change"""
476
482
        self.uilist = []
477
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
483
        # self.uilist.append(urwid.ListBox(self.clients))
478
484
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
479
485
                                                          clients),
480
 
                                       #header=urwid.Divider(),
 
486
                                       # header=urwid.Divider(),
481
487
                                       header=None,
482
 
                                       footer=
483
 
                                       urwid.Divider(div_char=
484
 
                                                     self.divider)))
 
488
                                       footer=urwid.Divider(
 
489
                                           div_char=self.divider)))
485
490
        if self.log_visible:
486
491
            self.uilist.append(self.logbox)
487
492
        self.topwidget = urwid.Pile(self.uilist)
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
 
493
 
 
494
    def add_log_line(self, markup):
501
495
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
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),
 
496
        if self.max_log_length:
 
497
            if len(self.log) > self.max_log_length:
 
498
                del self.log[0:(len(self.log) - self.max_log_length)]
 
499
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
506
500
                              coming_from="above")
507
501
        self.refresh()
508
 
    
 
502
 
509
503
    def toggle_log_display(self):
510
504
        """Toggle visibility of the log buffer."""
511
505
        self.log_visible = not self.log_visible
512
506
        self.rebuild()
513
 
        self.log_message("Log visibility changed to: {}"
514
 
                         .format(self.log_visible), level=0)
515
 
    
 
507
        log.debug("Log visibility changed to: %s", self.log_visible)
 
508
 
516
509
    def change_log_display(self):
517
510
        """Change type of log display.
518
511
        Currently, this toggles wrapping of text lines."""
522
515
            self.log_wrap = "clip"
523
516
        for textwidget in self.log:
524
517
            textwidget.set_wrap_mode(self.log_wrap)
525
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
526
 
                         level=0)
527
 
    
528
 
    def find_and_remove_client(self, path, name):
 
518
        log.debug("Wrap mode: %s", self.log_wrap)
 
519
 
 
520
    def find_and_remove_client(self, path, interfaces):
529
521
        """Find a client by its object path and remove it.
530
 
        
531
 
        This is connected to the ClientRemoved signal from the
 
522
 
 
523
        This is connected to the InterfacesRemoved signal from the
532
524
        Mandos server object."""
 
525
        if client_interface not in interfaces:
 
526
            # Not a Mandos client object; ignore
 
527
            return
533
528
        try:
534
529
            client = self.clients_dict[path]
535
530
        except KeyError:
536
531
            # not found?
537
 
            self.log_message("Unknown client {!r} ({!r}) removed"
538
 
                             .format(name, path))
 
532
            log.warning("Unknown client %s removed", path)
539
533
            return
540
534
        client.delete()
541
 
    
542
 
    def add_new_client(self, path):
 
535
 
 
536
    def add_new_client(self, path, ifs_and_props):
 
537
        """Find a client by its object path and remove it.
 
538
 
 
539
        This is connected to the InterfacesAdded signal from the
 
540
        Mandos server object.
 
541
        """
 
542
        if client_interface not in ifs_and_props:
 
543
            # Not a Mandos client object; ignore
 
544
            return
543
545
        client_proxy_object = self.bus.get_object(self.busname, path)
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),
 
546
        self.add_client(MandosClientWidget(
 
547
            server_proxy_object=self.mandos_serv,
 
548
            proxy_object=client_proxy_object,
 
549
            update_hook=self.refresh,
 
550
            delete_hook=self.remove_client,
 
551
            properties=dict(ifs_and_props[client_interface])),
554
552
                        path=path)
555
 
    
 
553
 
556
554
    def add_client(self, client, path=None):
557
555
        self.clients.append(client)
558
556
        if path is None:
560
558
        self.clients_dict[path] = client
561
559
        self.clients.sort(key=lambda c: c.properties["Name"])
562
560
        self.refresh()
563
 
    
 
561
 
564
562
    def remove_client(self, client, path=None):
565
563
        self.clients.remove(client)
566
564
        if path is None:
567
565
            path = client.proxy.object_path
568
566
        del self.clients_dict[path]
569
567
        self.refresh()
570
 
    
 
568
 
571
569
    def refresh(self):
572
570
        """Redraw the screen"""
573
571
        canvas = self.topwidget.render(self.size, focus=True)
574
572
        self.screen.draw_screen(self.size, canvas)
575
 
    
 
573
 
576
574
    def run(self):
577
575
        """Start the main loop and exit when it's done."""
 
576
        log.addHandler(self.loghandler)
 
577
        self.orig_log_propagate = log.propagate
 
578
        log.propagate = False
 
579
        self.orig_log_level = log.level
 
580
        log.setLevel("INFO")
578
581
        self.bus = dbus.SystemBus()
579
582
        mandos_dbus_objc = self.bus.get_object(
580
583
            self.busname, "/", follow_name_owner_changes=True)
581
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
582
 
                                          dbus_interface
583
 
                                          = server_interface)
 
584
        self.mandos_serv = dbus.Interface(
 
585
            mandos_dbus_objc, dbus_interface=server_interface)
584
586
        try:
585
587
            mandos_clients = (self.mandos_serv
586
588
                              .GetAllClientsWithProperties())
587
589
            if not mandos_clients:
588
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
590
                log.warning("Note: Server has no clients.")
589
591
        except dbus.exceptions.DBusException:
590
 
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
592
            log.warning("Note: No Mandos server running.")
591
593
            mandos_clients = dbus.Dictionary()
592
 
        
 
594
 
593
595
        (self.mandos_serv
594
 
         .connect_to_signal("ClientRemoved",
 
596
         .connect_to_signal("InterfacesRemoved",
595
597
                            self.find_and_remove_client,
596
 
                            dbus_interface=server_interface,
 
598
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
597
599
                            byte_arrays=True))
598
600
        (self.mandos_serv
599
 
         .connect_to_signal("ClientAdded",
 
601
         .connect_to_signal("InterfacesAdded",
600
602
                            self.add_new_client,
601
 
                            dbus_interface=server_interface,
 
603
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
602
604
                            byte_arrays=True))
603
605
        (self.mandos_serv
604
606
         .connect_to_signal("ClientNotFound",
608
610
        for path, client in mandos_clients.items():
609
611
            client_proxy_object = self.bus.get_object(self.busname,
610
612
                                                      path)
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),
 
613
            self.add_client(MandosClientWidget(
 
614
                server_proxy_object=self.mandos_serv,
 
615
                proxy_object=client_proxy_object,
 
616
                properties=client,
 
617
                update_hook=self.refresh,
 
618
                delete_hook=self.remove_client),
622
619
                            path=path)
623
 
        
 
620
 
624
621
        self.refresh()
625
 
        self._input_callback_tag = (gobject.io_add_watch
626
 
                                    (sys.stdin.fileno(),
627
 
                                     gobject.IO_IN,
628
 
                                     self.process_input))
 
622
        self._input_callback_tag = (
 
623
            GLib.io_add_watch(
 
624
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
625
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
626
                glib_safely(self.process_input)))
629
627
        self.main_loop.run()
630
628
        # Main loop has finished, we should close everything now
631
 
        gobject.source_remove(self._input_callback_tag)
632
 
        self.screen.stop()
633
 
    
 
629
        GLib.source_remove(self._input_callback_tag)
 
630
        with warnings.catch_warnings():
 
631
            warnings.simplefilter("ignore", BytesWarning)
 
632
            self.screen.stop()
 
633
 
634
634
    def stop(self):
635
635
        self.main_loop.quit()
636
 
    
 
636
        log.removeHandler(self.loghandler)
 
637
        log.propagate = self.orig_log_propagate
 
638
 
637
639
    def process_input(self, source, condition):
638
640
        keys = self.screen.get_input()
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
 
                         }
 
641
        translations = {"ctrl n": "down",       # Emacs
 
642
                        "ctrl p": "up",         # Emacs
 
643
                        "ctrl v": "page down",  # Emacs
 
644
                        "meta v": "page up",    # Emacs
 
645
                        " ": "page down",       # less
 
646
                        "f": "page down",       # less
 
647
                        "b": "page up",         # less
 
648
                        "j": "down",            # vi
 
649
                        "k": "up",              # vi
 
650
                        }
649
651
        for key in keys:
650
652
            try:
651
653
                key = translations[key]
652
654
            except KeyError:    # :-)
653
655
                pass
654
 
            
 
656
 
655
657
            if key == "q" or key == "Q":
656
658
                self.stop()
657
659
                break
671
673
                if not self.log_visible:
672
674
                    self.log_visible = True
673
675
                    self.rebuild()
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"))))
 
676
                self.add_log_line(("bold",
 
677
                                   "  ".join(("q: Quit",
 
678
                                              "?: Help",
 
679
                                              "l: Log window toggle",
 
680
                                              "TAB: Switch window",
 
681
                                              "w: Wrap (log lines)",
 
682
                                              "v: Toggle verbose log",
 
683
                                   ))))
 
684
                self.add_log_line(("bold",
 
685
                                   "  ".join(("Clients:",
 
686
                                              "+: Enable",
 
687
                                              "-: Disable",
 
688
                                              "R: Remove",
 
689
                                              "s: Start new checker",
 
690
                                              "S: Stop checker",
 
691
                                              "C: Checker OK",
 
692
                                              "a: Approve",
 
693
                                              "d: Deny",
 
694
                                   ))))
694
695
                self.refresh()
695
696
            elif key == "tab":
696
697
                if self.topwidget.get_focus() is self.logbox:
699
700
                    self.topwidget.set_focus(self.logbox)
700
701
                self.refresh()
701
702
            elif key == "v":
702
 
                if self.log_level == 0:
703
 
                    self.log_level = 1
704
 
                    self.log_message("Verbose mode: Off")
 
703
                if log.level < logging.INFO:
 
704
                    log.setLevel(logging.INFO)
 
705
                    log.info("Verbose mode: Off")
705
706
                else:
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
 
707
                    log.setLevel(logging.NOTSET)
 
708
                    log.info("Verbose mode: On")
 
709
            # elif (key == "end" or key == "meta >" or key == "G"
 
710
            #       or key == ">"):
 
711
            #     pass            # xxx end-of-buffer
 
712
            # elif (key == "home" or key == "meta <" or key == "g"
 
713
            #       or key == "<"):
 
714
            #     pass            # xxx beginning-of-buffer
 
715
            # elif key == "ctrl e" or key == "$":
 
716
            #     pass            # xxx move-end-of-line
 
717
            # elif key == "ctrl a" or key == "^":
 
718
            #     pass            # xxx move-beginning-of-line
 
719
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
720
            #     pass            # xxx left
 
721
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
722
            #     pass            # xxx right
 
723
            # elif key == "a":
 
724
            #     pass            # scroll up log
 
725
            # elif key == "z":
 
726
            #     pass            # scroll down log
726
727
            elif self.topwidget.selectable():
727
728
                self.topwidget.keypress(self.size, key)
728
729
                self.refresh()
729
730
        return True
730
731
 
 
732
 
 
733
class UILogHandler(logging.Handler):
 
734
    def __init__(self, ui, *args, **kwargs):
 
735
        self.ui = ui
 
736
        super(UILogHandler, self).__init__(*args, **kwargs)
 
737
        self.setFormatter(
 
738
            logging.Formatter("%(asctime)s: %(message)s"))
 
739
    def emit(self, record):
 
740
        msg = self.format(record)
 
741
        if record.levelno > logging.INFO:
 
742
            msg = ("bold", msg)
 
743
        self.ui.add_log_line(msg)
 
744
 
 
745
 
731
746
ui = UserInterface()
732
747
try:
733
748
    ui.run()
734
749
except KeyboardInterrupt:
735
 
    ui.screen.stop()
736
 
except Exception as e:
737
 
    ui.log_message(str(e))
738
 
    ui.screen.stop()
 
750
    with warnings.catch_warnings():
 
751
        warnings.filterwarnings("ignore", "", BytesWarning)
 
752
        ui.screen.stop()
 
753
except Exception:
 
754
    with warnings.catch_warnings():
 
755
        warnings.filterwarnings("ignore", "", BytesWarning)
 
756
        ui.screen.stop()
739
757
    raise