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  • Committer: Teddy Hogeborn
  • Date: 2024-11-22 20:28:54 UTC
  • Revision ID: teddy@recompile.se-20241122202854-dycuf117byxhxl32
mandos-monitor: Avoid debug messages from urwid

Avoid debug messages from urwid.  Any logging output before the screen
has been set up will mangle the screen.

* mandos-monitor: When setting up logging, set urwid to only show log
  messages of level INFO or above.

(Thanks to an anonymous contributor for reporting this.)

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mandos-monitor
1
 
#!/usr/bin/python
 
1
#!/usr/bin/python3 -bbI
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
from __future__ import (division, absolute_import, print_function,
27
27
                        unicode_literals)
 
28
 
28
29
try:
29
30
    from future_builtins import *
30
31
except ImportError:
31
32
    pass
32
33
 
33
34
import sys
 
35
import logging
34
36
import os
35
 
 
 
37
import warnings
36
38
import datetime
 
39
import locale
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:
 
50
    __metaclass__ = type
52
51
    str = unicode
53
 
 
54
 
locale.setlocale(locale.LC_ALL, '')
55
 
 
56
 
import logging
57
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
52
    input = raw_input
 
53
 
 
54
# Show warnings by default
 
55
if not sys.warnoptions:
 
56
    warnings.simplefilter("default")
 
57
 
 
58
log = logging.getLogger(os.path.basename(sys.argv[0]))
 
59
logging.basicConfig(level="NOTSET", # Show all messages
 
60
                    format="%(message)s") # Show basic log messages
 
61
 
 
62
logging.captureWarnings(True)   # Show warnings via the logging system
 
63
 
 
64
locale.setlocale(locale.LC_ALL, "")
 
65
 
 
66
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
67
logging.getLogger("urwid").setLevel(logging.INFO)
58
68
 
59
69
# Some useful constants
60
 
domain = 'se.recompile'
61
 
server_interface = domain + '.Mandos'
62
 
client_interface = domain + '.Mandos.Client'
63
 
version = "1.6.7"
 
70
domain = "se.recompile"
 
71
server_interface = domain + ".Mandos"
 
72
client_interface = domain + ".Mandos.Client"
 
73
version = "1.8.17"
 
74
 
 
75
try:
 
76
    dbus.OBJECT_MANAGER_IFACE
 
77
except AttributeError:
 
78
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
79
 
64
80
 
65
81
def isoformat_to_datetime(iso):
66
82
    "Parse an ISO 8601 date string to a datetime.datetime()"
75
91
                             int(day),
76
92
                             int(hour),
77
93
                             int(minute),
78
 
                             int(second),           # Whole seconds
79
 
                             int(fraction*1000000)) # Microseconds
80
 
 
81
 
class MandosClientPropertyCache(object):
 
94
                             int(second),            # Whole seconds
 
95
                             int(fraction*1000000))  # Microseconds
 
96
 
 
97
 
 
98
class MandosClientPropertyCache:
82
99
    """This wraps a Mandos Client D-Bus proxy object, caches the
83
100
    properties and calls a hook function when any of them are
84
101
    changed.
85
102
    """
86
103
    def __init__(self, proxy_object=None, properties=None, **kwargs):
87
 
        self.proxy = proxy_object # Mandos Client proxy object
 
104
        self.proxy = proxy_object  # Mandos Client proxy object
88
105
        self.properties = dict() if properties is None else properties
89
106
        self.property_changed_match = (
90
 
            self.proxy.connect_to_signal("PropertyChanged",
91
 
                                         self._property_changed,
92
 
                                         client_interface,
 
107
            self.proxy.connect_to_signal("PropertiesChanged",
 
108
                                         self.properties_changed,
 
109
                                         dbus.PROPERTIES_IFACE,
93
110
                                         byte_arrays=True))
94
 
        
 
111
 
95
112
        if properties is None:
96
 
            self.properties.update(
97
 
                self.proxy.GetAll(client_interface,
98
 
                                  dbus_interface
99
 
                                  = dbus.PROPERTIES_IFACE))
100
 
        
 
113
            self.properties.update(self.proxy.GetAll(
 
114
                client_interface,
 
115
                dbus_interface=dbus.PROPERTIES_IFACE))
 
116
 
101
117
        super(MandosClientPropertyCache, self).__init__(**kwargs)
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.
 
118
 
 
119
    def properties_changed(self, interface, properties, invalidated):
 
120
        """This is called whenever we get a PropertiesChanged signal
 
121
        It updates the changed properties in the "properties" dict.
110
122
        """
111
123
        # Update properties dict with new value
112
 
        self.properties[property] = value
113
 
    
 
124
        if interface == client_interface:
 
125
            self.properties.update(properties)
 
126
 
114
127
    def delete(self):
115
128
        self.property_changed_match.remove()
116
129
 
118
131
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
119
132
    """A Mandos Client which is visible on the screen.
120
133
    """
121
 
    
 
134
 
122
135
    def __init__(self, server_proxy_object=None, update_hook=None,
123
 
                 delete_hook=None, logger=None, **kwargs):
 
136
                 delete_hook=None, **kwargs):
124
137
        # Called on update
125
138
        self.update_hook = update_hook
126
139
        # Called on delete
127
140
        self.delete_hook = delete_hook
128
141
        # Mandos Server proxy object
129
142
        self.server_proxy_object = server_proxy_object
130
 
        # Logger
131
 
        self.logger = logger
132
 
        
 
143
 
133
144
        self._update_timer_callback_tag = None
134
 
        
 
145
 
135
146
        # The widget shown normally
136
147
        self._text_widget = urwid.Text("")
137
148
        # The widget shown when we have focus
139
150
        super(MandosClientWidget, self).__init__(**kwargs)
140
151
        self.update()
141
152
        self.opened = False
142
 
        
 
153
 
143
154
        self.match_objects = (
144
155
            self.proxy.connect_to_signal("CheckerCompleted",
145
156
                                         self.checker_completed,
161
172
                                         self.rejected,
162
173
                                         client_interface,
163
174
                                         byte_arrays=True))
164
 
        self.logger('Created client {}'
165
 
                    .format(self.properties["Name"]), level=0)
166
 
    
 
175
        log.debug("Created client %s", self.properties["Name"])
 
176
 
167
177
    def using_timer(self, flag):
168
178
        """Call this method with True or False when timer should be
169
179
        activated or deactivated.
170
180
        """
171
181
        if flag and self._update_timer_callback_tag is None:
172
182
            # Will update the shown timer value every second
173
 
            self._update_timer_callback_tag = (gobject.timeout_add
174
 
                                               (1000,
175
 
                                                self.update_timer))
 
183
            self._update_timer_callback_tag = (
 
184
                GLib.timeout_add(1000,
 
185
                                 glib_safely(self.update_timer)))
176
186
        elif not (flag or self._update_timer_callback_tag is None):
177
 
            gobject.source_remove(self._update_timer_callback_tag)
 
187
            GLib.source_remove(self._update_timer_callback_tag)
178
188
            self._update_timer_callback_tag = None
179
 
    
 
189
 
180
190
    def checker_completed(self, exitstatus, condition, command):
181
191
        if exitstatus == 0:
182
 
            self.logger('Checker for client {} (command "{}")'
183
 
                        ' succeeded'.format(self.properties["Name"],
184
 
                                            command), level=0)
 
192
            log.debug('Checker for client %s (command "%s")'
 
193
                      " succeeded", self.properties["Name"], command)
185
194
            self.update()
186
195
            return
187
196
        # Checker failed
188
197
        if os.WIFEXITED(condition):
189
 
            self.logger('Checker for client {} (command "{}") failed'
190
 
                        ' with exit code {}'
191
 
                        .format(self.properties["Name"], command,
192
 
                                os.WEXITSTATUS(condition)))
 
198
            log.info('Checker for client %s (command "%s") failed'
 
199
                     " with exit code %d", self.properties["Name"],
 
200
                     command, os.WEXITSTATUS(condition))
193
201
        elif os.WIFSIGNALED(condition):
194
 
            self.logger('Checker for client {} (command "{}") was'
195
 
                        ' killed by signal {}'
196
 
                        .format(self.properties["Name"], command,
197
 
                                os.WTERMSIG(condition)))
198
 
        elif os.WCOREDUMP(condition):
199
 
            self.logger('Checker for client {} (command "{}") dumped'
200
 
                        ' core'.format(self.properties["Name"],
201
 
                                       command))
202
 
        else:
203
 
            self.logger('Checker for client {} completed'
204
 
                        ' mysteriously'
205
 
                        .format(self.properties["Name"]))
 
202
            log.info('Checker for client %s (command "%s") was'
 
203
                     " killed by signal %d", self.properties["Name"],
 
204
                     command, os.WTERMSIG(condition))
206
205
        self.update()
207
 
    
 
206
 
208
207
    def checker_started(self, command):
209
208
        """Server signals that a checker started."""
210
 
        self.logger('Client {} started checker "{}"'
211
 
                    .format(self.properties["Name"],
212
 
                            command), level=0)
213
 
    
 
209
        log.debug('Client %s started checker "%s"',
 
210
                  self.properties["Name"], command)
 
211
 
214
212
    def got_secret(self):
215
 
        self.logger('Client {} received its secret'
216
 
                    .format(self.properties["Name"]))
217
 
    
 
213
        log.info("Client %s received its secret",
 
214
                 self.properties["Name"])
 
215
 
218
216
    def need_approval(self, timeout, default):
219
217
        if not default:
220
 
            message = 'Client {} needs approval within {} seconds'
 
218
            message = "Client %s needs approval within %f seconds"
221
219
        else:
222
 
            message = 'Client {} will get its secret in {} seconds'
223
 
        self.logger(message.format(self.properties["Name"],
224
 
                                   timeout/1000))
225
 
    
 
220
            message = "Client %s will get its secret in %f seconds"
 
221
        log.info(message, self.properties["Name"], timeout/1000)
 
222
 
226
223
    def rejected(self, reason):
227
 
        self.logger('Client {} was rejected; reason: {}'
228
 
                    .format(self.properties["Name"], reason))
229
 
    
 
224
        log.info("Client %s was rejected; reason: %s",
 
225
                 self.properties["Name"], reason)
 
226
 
230
227
    def selectable(self):
231
228
        """Make this a "selectable" widget.
232
229
        This overrides the method from urwid.FlowWidget."""
233
230
        return True
234
 
    
 
231
 
235
232
    def rows(self, maxcolrow, focus=False):
236
233
        """How many rows this widget will occupy might depend on
237
234
        whether we have focus or not.
238
235
        This overrides the method from urwid.FlowWidget"""
239
236
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
240
 
    
 
237
 
241
238
    def current_widget(self, focus=False):
242
239
        if focus or self.opened:
243
240
            return self._focus_widget
244
241
        return self._widget
245
 
    
 
242
 
246
243
    def update(self):
247
244
        "Called when what is visible on the screen should be updated."
248
245
        # How to add standout mode to a style
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
 
        
 
246
        with_standout = {"normal": "standout",
 
247
                         "bold": "bold-standout",
 
248
                         "underline-blink":
 
249
                         "underline-blink-standout",
 
250
                         "bold-underline-blink":
 
251
                         "bold-underline-blink-standout",
 
252
                         }
 
253
 
257
254
        # Rebuild focus and non-focus widgets using current properties
258
 
        
 
255
 
259
256
        # Base part of a client. Name!
260
 
        base = '{name}: '.format(name=self.properties["Name"])
 
257
        base = "{name}: ".format(name=self.properties["Name"])
261
258
        if not self.properties["Enabled"]:
262
259
            message = "DISABLED"
263
260
            self.using_timer(False)
264
261
        elif self.properties["ApprovalPending"]:
265
 
            timeout = datetime.timedelta(milliseconds
266
 
                                         = self.properties
267
 
                                         ["ApprovalDelay"])
 
262
            timeout = datetime.timedelta(
 
263
                milliseconds=self.properties["ApprovalDelay"])
268
264
            last_approval_request = isoformat_to_datetime(
269
265
                self.properties["LastApprovalRequest"])
270
266
            if last_approval_request is not None:
286
282
                timer = datetime.timedelta(0)
287
283
            else:
288
284
                expires = (datetime.datetime.strptime
289
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
285
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
290
286
                timer = max(expires - datetime.datetime.utcnow(),
291
287
                            datetime.timedelta())
292
 
            message = ('A checker has failed! Time until client'
293
 
                       ' gets disabled: {}'
 
288
            message = ("A checker has failed! Time until client"
 
289
                       " gets disabled: {}"
294
290
                       .format(str(timer).rsplit(".", 1)[0]))
295
291
            self.using_timer(True)
296
292
        else:
297
293
            message = "enabled"
298
294
            self.using_timer(False)
299
295
        self._text = "{}{}".format(base, message)
300
 
        
 
296
 
301
297
        if not urwid.supports_unicode():
302
298
            self._text = self._text.encode("ascii", "replace")
303
299
        textlist = [("normal", self._text)]
313
309
        # Run update hook, if any
314
310
        if self.update_hook is not None:
315
311
            self.update_hook()
316
 
    
 
312
 
317
313
    def update_timer(self):
318
 
        """called by gobject. Will indefinitely loop until
319
 
        gobject.source_remove() on tag is called"""
 
314
        """called by GLib. Will indefinitely loop until
 
315
        GLib.source_remove() on tag is called
 
316
        """
320
317
        self.update()
321
318
        return True             # Keep calling this
322
 
    
 
319
 
323
320
    def delete(self, **kwargs):
324
321
        if self._update_timer_callback_tag is not None:
325
 
            gobject.source_remove(self._update_timer_callback_tag)
 
322
            GLib.source_remove(self._update_timer_callback_tag)
326
323
            self._update_timer_callback_tag = None
327
324
        for match in self.match_objects:
328
325
            match.remove()
330
327
        if self.delete_hook is not None:
331
328
            self.delete_hook(self)
332
329
        return super(MandosClientWidget, self).delete(**kwargs)
333
 
    
 
330
 
334
331
    def render(self, maxcolrow, focus=False):
335
332
        """Render differently if we have focus.
336
333
        This overrides the method from urwid.FlowWidget"""
337
334
        return self.current_widget(focus).render(maxcolrow,
338
335
                                                 focus=focus)
339
 
    
 
336
 
340
337
    def keypress(self, maxcolrow, key):
341
338
        """Handle keys.
342
339
        This overrides the method from urwid.FlowWidget"""
343
340
        if key == "+":
344
 
            self.proxy.Enable(dbus_interface = client_interface,
345
 
                              ignore_reply=True)
 
341
            self.proxy.Set(client_interface, "Enabled",
 
342
                           dbus.Boolean(True), ignore_reply=True,
 
343
                           dbus_interface=dbus.PROPERTIES_IFACE)
346
344
        elif key == "-":
347
 
            self.proxy.Disable(dbus_interface = client_interface,
348
 
                               ignore_reply=True)
 
345
            self.proxy.Set(client_interface, "Enabled", False,
 
346
                           ignore_reply=True,
 
347
                           dbus_interface=dbus.PROPERTIES_IFACE)
349
348
        elif key == "a":
350
349
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
351
 
                               dbus_interface = client_interface,
 
350
                               dbus_interface=client_interface,
352
351
                               ignore_reply=True)
353
352
        elif key == "d":
354
353
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
355
 
                                  dbus_interface = client_interface,
 
354
                               dbus_interface=client_interface,
356
355
                               ignore_reply=True)
357
356
        elif key == "R" or key == "_" or key == "ctrl k":
358
357
            self.server_proxy_object.RemoveClient(self.proxy
359
358
                                                  .object_path,
360
359
                                                  ignore_reply=True)
361
360
        elif key == "s":
362
 
            self.proxy.StartChecker(dbus_interface = client_interface,
363
 
                                    ignore_reply=True)
 
361
            self.proxy.Set(client_interface, "CheckerRunning",
 
362
                           dbus.Boolean(True), ignore_reply=True,
 
363
                           dbus_interface=dbus.PROPERTIES_IFACE)
364
364
        elif key == "S":
365
 
            self.proxy.StopChecker(dbus_interface = client_interface,
366
 
                                   ignore_reply=True)
 
365
            self.proxy.Set(client_interface, "CheckerRunning",
 
366
                           dbus.Boolean(False), ignore_reply=True,
 
367
                           dbus_interface=dbus.PROPERTIES_IFACE)
367
368
        elif key == "C":
368
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
369
            self.proxy.CheckedOK(dbus_interface=client_interface,
369
370
                                 ignore_reply=True)
370
371
        # xxx
371
372
#         elif key == "p" or key == "=":
376
377
#             self.open()
377
378
        else:
378
379
            return key
379
 
    
380
 
    def property_changed(self, property=None, **kwargs):
381
 
        """Call self.update() if old value is not new value.
 
380
 
 
381
    def properties_changed(self, interface, properties, invalidated):
 
382
        """Call self.update() if any properties changed.
382
383
        This overrides the method from MandosClientPropertyCache"""
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:
 
384
        old_values = {key: self.properties.get(key)
 
385
                      for key in properties.keys()}
 
386
        super(MandosClientWidget, self).properties_changed(
 
387
            interface, properties, invalidated)
 
388
        if any(old_values[key] != self.properties.get(key)
 
389
               for key in old_values):
388
390
            self.update()
389
391
 
390
392
 
 
393
def glib_safely(func, retval=True):
 
394
    def safe_func(*args, **kwargs):
 
395
        try:
 
396
            return func(*args, **kwargs)
 
397
        except Exception:
 
398
            log.exception("")
 
399
            return retval
 
400
    return safe_func
 
401
 
 
402
 
391
403
class ConstrainedListBox(urwid.ListBox):
392
404
    """Like a normal urwid.ListBox, but will consume all "up" or
393
405
    "down" key presses, thus not allowing any containing widgets to
394
406
    use them as an excuse to shift focus away from this widget.
395
407
    """
396
408
    def keypress(self, *args, **kwargs):
397
 
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
409
        ret = (super(ConstrainedListBox, self)
 
410
               .keypress(*args, **kwargs))
398
411
        if ret in ("up", "down"):
399
412
            return
400
413
        return ret
401
414
 
402
415
 
403
 
class UserInterface(object):
 
416
class UserInterface:
404
417
    """This is the entire user interface - the whole screen
405
418
    with boxes, lists of client widgets, etc.
406
419
    """
407
 
    def __init__(self, max_log_length=1000, log_level=1):
 
420
    def __init__(self, max_log_length=1000):
408
421
        DBusGMainLoop(set_as_default=True)
409
 
        
 
422
 
410
423
        self.screen = urwid.curses_display.Screen()
411
 
        
 
424
 
412
425
        self.screen.register_palette((
413
426
                ("normal",
414
427
                 "default", "default", None),
419
432
                ("standout",
420
433
                 "standout", "default", "standout"),
421
434
                ("bold-underline-blink",
422
 
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
435
                 "bold,underline,blink", "default",
 
436
                 "bold,underline,blink"),
423
437
                ("bold-standout",
424
438
                 "bold,standout", "default", "bold,standout"),
425
439
                ("underline-blink-standout",
429
443
                 "bold,underline,blink,standout", "default",
430
444
                 "bold,underline,blink,standout"),
431
445
                ))
432
 
        
 
446
 
433
447
        if urwid.supports_unicode():
434
 
            self.divider = "─" # \u2500
435
 
            #self.divider = "━" # \u2501
 
448
            self.divider = "─"  # \u2500
436
449
        else:
437
 
            #self.divider = "-" # \u002d
438
 
            self.divider = "_" # \u005f
439
 
        
 
450
            self.divider = "_"  # \u005f
 
451
 
440
452
        self.screen.start()
441
 
        
 
453
 
442
454
        self.size = self.screen.get_cols_rows()
443
 
        
 
455
 
444
456
        self.clients = urwid.SimpleListWalker([])
445
457
        self.clients_dict = {}
446
 
        
 
458
 
447
459
        # We will add Text widgets to this list
448
 
        self.log = []
 
460
        self.log = urwid.SimpleListWalker([])
449
461
        self.max_log_length = max_log_length
450
 
        
451
 
        self.log_level = log_level
452
 
        
 
462
 
453
463
        # We keep a reference to the log widget so we can remove it
454
464
        # from the ListWalker without it getting destroyed
455
465
        self.logbox = ConstrainedListBox(self.log)
456
 
        
 
466
 
457
467
        # This keeps track of whether self.uilist currently has
458
468
        # self.logbox in it or not
459
469
        self.log_visible = True
460
470
        self.log_wrap = "any"
461
 
        
 
471
 
 
472
        self.loghandler = UILogHandler(self)
 
473
 
462
474
        self.rebuild()
463
 
        self.log_message_raw(("bold",
464
 
                              "Mandos Monitor version " + version))
465
 
        self.log_message_raw(("bold",
466
 
                              "q: Quit  ?: Help"))
467
 
        
468
 
        self.busname = domain + '.Mandos'
469
 
        self.main_loop = gobject.MainLoop()
470
 
    
471
 
    def client_not_found(self, fingerprint, address):
472
 
        self.log_message("Client with address {} and fingerprint {}"
473
 
                         " could not be found"
474
 
                         .format(address, fingerprint))
475
 
    
 
475
        self.add_log_line(("bold",
 
476
                           "Mandos Monitor version " + version))
 
477
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
478
 
 
479
        self.busname = domain + ".Mandos"
 
480
        self.main_loop = GLib.MainLoop()
 
481
 
 
482
    def client_not_found(self, key_id, address):
 
483
        log.info("Client with address %s and key ID %s could"
 
484
                 " not be found", address, key_id)
 
485
 
476
486
    def rebuild(self):
477
487
        """This rebuilds the User Interface.
478
488
        Call this when the widget layout needs to change"""
479
489
        self.uilist = []
480
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
490
        # self.uilist.append(urwid.ListBox(self.clients))
481
491
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
482
492
                                                          clients),
483
 
                                       #header=urwid.Divider(),
 
493
                                       # header=urwid.Divider(),
484
494
                                       header=None,
485
 
                                       footer=
486
 
                                       urwid.Divider(div_char=
487
 
                                                     self.divider)))
 
495
                                       footer=urwid.Divider(
 
496
                                           div_char=self.divider)))
488
497
        if self.log_visible:
489
498
            self.uilist.append(self.logbox)
490
499
        self.topwidget = urwid.Pile(self.uilist)
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("{}: {}".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
 
500
 
 
501
    def add_log_line(self, markup):
504
502
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
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),
 
503
        if self.max_log_length:
 
504
            if len(self.log) > self.max_log_length:
 
505
                del self.log[0:(len(self.log) - self.max_log_length)]
 
506
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
509
507
                              coming_from="above")
510
508
        self.refresh()
511
 
    
 
509
 
512
510
    def toggle_log_display(self):
513
511
        """Toggle visibility of the log buffer."""
514
512
        self.log_visible = not self.log_visible
515
513
        self.rebuild()
516
 
        self.log_message("Log visibility changed to: {}"
517
 
                         .format(self.log_visible), level=0)
518
 
    
 
514
        log.debug("Log visibility changed to: %s", self.log_visible)
 
515
 
519
516
    def change_log_display(self):
520
517
        """Change type of log display.
521
518
        Currently, this toggles wrapping of text lines."""
525
522
            self.log_wrap = "clip"
526
523
        for textwidget in self.log:
527
524
            textwidget.set_wrap_mode(self.log_wrap)
528
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
529
 
                         level=0)
530
 
    
531
 
    def find_and_remove_client(self, path, name):
 
525
        log.debug("Wrap mode: %s", self.log_wrap)
 
526
 
 
527
    def find_and_remove_client(self, path, interfaces):
532
528
        """Find a client by its object path and remove it.
533
 
        
534
 
        This is connected to the ClientRemoved signal from the
 
529
 
 
530
        This is connected to the InterfacesRemoved signal from the
535
531
        Mandos server object."""
 
532
        if client_interface not in interfaces:
 
533
            # Not a Mandos client object; ignore
 
534
            return
536
535
        try:
537
536
            client = self.clients_dict[path]
538
537
        except KeyError:
539
538
            # not found?
540
 
            self.log_message("Unknown client {!r} ({!r}) removed"
541
 
                             .format(name, path))
 
539
            log.warning("Unknown client %s removed", path)
542
540
            return
543
541
        client.delete()
544
 
    
545
 
    def add_new_client(self, path):
 
542
 
 
543
    def add_new_client(self, path, ifs_and_props):
 
544
        """Find a client by its object path and remove it.
 
545
 
 
546
        This is connected to the InterfacesAdded signal from the
 
547
        Mandos server object.
 
548
        """
 
549
        if client_interface not in ifs_and_props:
 
550
            # Not a Mandos client object; ignore
 
551
            return
546
552
        client_proxy_object = self.bus.get_object(self.busname, path)
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),
 
553
        self.add_client(MandosClientWidget(
 
554
            server_proxy_object=self.mandos_serv,
 
555
            proxy_object=client_proxy_object,
 
556
            update_hook=self.refresh,
 
557
            delete_hook=self.remove_client,
 
558
            properties=dict(ifs_and_props[client_interface])),
557
559
                        path=path)
558
 
    
 
560
 
559
561
    def add_client(self, client, path=None):
560
562
        self.clients.append(client)
561
563
        if path is None:
563
565
        self.clients_dict[path] = client
564
566
        self.clients.sort(key=lambda c: c.properties["Name"])
565
567
        self.refresh()
566
 
    
 
568
 
567
569
    def remove_client(self, client, path=None):
568
570
        self.clients.remove(client)
569
571
        if path is None:
570
572
            path = client.proxy.object_path
571
573
        del self.clients_dict[path]
572
574
        self.refresh()
573
 
    
 
575
 
574
576
    def refresh(self):
575
577
        """Redraw the screen"""
576
578
        canvas = self.topwidget.render(self.size, focus=True)
577
579
        self.screen.draw_screen(self.size, canvas)
578
 
    
 
580
 
579
581
    def run(self):
580
582
        """Start the main loop and exit when it's done."""
 
583
        log.addHandler(self.loghandler)
 
584
        self.orig_log_propagate = log.propagate
 
585
        log.propagate = False
 
586
        self.orig_log_level = log.level
 
587
        log.setLevel("INFO")
581
588
        self.bus = dbus.SystemBus()
582
589
        mandos_dbus_objc = self.bus.get_object(
583
590
            self.busname, "/", follow_name_owner_changes=True)
584
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
585
 
                                          dbus_interface
586
 
                                          = server_interface)
 
591
        self.mandos_serv = dbus.Interface(
 
592
            mandos_dbus_objc, dbus_interface=server_interface)
587
593
        try:
588
594
            mandos_clients = (self.mandos_serv
589
595
                              .GetAllClientsWithProperties())
590
596
            if not mandos_clients:
591
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
597
                log.warning("Note: Server has no clients.")
592
598
        except dbus.exceptions.DBusException:
593
 
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
599
            log.warning("Note: No Mandos server running.")
594
600
            mandos_clients = dbus.Dictionary()
595
 
        
 
601
 
596
602
        (self.mandos_serv
597
 
         .connect_to_signal("ClientRemoved",
 
603
         .connect_to_signal("InterfacesRemoved",
598
604
                            self.find_and_remove_client,
599
 
                            dbus_interface=server_interface,
 
605
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
600
606
                            byte_arrays=True))
601
607
        (self.mandos_serv
602
 
         .connect_to_signal("ClientAdded",
 
608
         .connect_to_signal("InterfacesAdded",
603
609
                            self.add_new_client,
604
 
                            dbus_interface=server_interface,
 
610
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
605
611
                            byte_arrays=True))
606
612
        (self.mandos_serv
607
613
         .connect_to_signal("ClientNotFound",
611
617
        for path, client in mandos_clients.items():
612
618
            client_proxy_object = self.bus.get_object(self.busname,
613
619
                                                      path)
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),
 
620
            self.add_client(MandosClientWidget(
 
621
                server_proxy_object=self.mandos_serv,
 
622
                proxy_object=client_proxy_object,
 
623
                properties=client,
 
624
                update_hook=self.refresh,
 
625
                delete_hook=self.remove_client),
625
626
                            path=path)
626
 
        
 
627
 
627
628
        self.refresh()
628
 
        self._input_callback_tag = (gobject.io_add_watch
629
 
                                    (sys.stdin.fileno(),
630
 
                                     gobject.IO_IN,
631
 
                                     self.process_input))
 
629
        self._input_callback_tag = (
 
630
            GLib.io_add_watch(
 
631
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
632
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
633
                glib_safely(self.process_input)))
632
634
        self.main_loop.run()
633
635
        # Main loop has finished, we should close everything now
634
 
        gobject.source_remove(self._input_callback_tag)
635
 
        self.screen.stop()
636
 
    
 
636
        GLib.source_remove(self._input_callback_tag)
 
637
        with warnings.catch_warnings():
 
638
            warnings.simplefilter("ignore", BytesWarning)
 
639
            self.screen.stop()
 
640
 
637
641
    def stop(self):
638
642
        self.main_loop.quit()
639
 
    
 
643
        log.removeHandler(self.loghandler)
 
644
        log.propagate = self.orig_log_propagate
 
645
 
640
646
    def process_input(self, source, condition):
641
647
        keys = self.screen.get_input()
642
 
        translations = { "ctrl n": "down",      # Emacs
643
 
                         "ctrl p": "up",        # Emacs
644
 
                         "ctrl v": "page down", # Emacs
645
 
                         "meta v": "page up",   # Emacs
646
 
                         " ": "page down",      # less
647
 
                         "f": "page down",      # less
648
 
                         "b": "page up",        # less
649
 
                         "j": "down",           # vi
650
 
                         "k": "up",             # vi
651
 
                         }
 
648
        translations = {"ctrl n": "down",       # Emacs
 
649
                        "ctrl p": "up",         # Emacs
 
650
                        "ctrl v": "page down",  # Emacs
 
651
                        "meta v": "page up",    # Emacs
 
652
                        " ": "page down",       # less
 
653
                        "f": "page down",       # less
 
654
                        "b": "page up",         # less
 
655
                        "j": "down",            # vi
 
656
                        "k": "up",              # vi
 
657
                        }
652
658
        for key in keys:
653
659
            try:
654
660
                key = translations[key]
655
661
            except KeyError:    # :-)
656
662
                pass
657
 
            
 
663
 
658
664
            if key == "q" or key == "Q":
659
665
                self.stop()
660
666
                break
674
680
                if not self.log_visible:
675
681
                    self.log_visible = True
676
682
                    self.rebuild()
677
 
                self.log_message_raw(("bold",
678
 
                                      "  ".
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.log_message_raw(("bold",
687
 
                                      "  "
688
 
                                      .join(("Clients:",
689
 
                                             "+: Enable",
690
 
                                             "-: Disable",
691
 
                                             "R: Remove",
692
 
                                             "s: Start new checker",
693
 
                                             "S: Stop checker",
694
 
                                             "C: Checker OK",
695
 
                                             "a: Approve",
696
 
                                             "d: Deny"))))
 
683
                self.add_log_line(("bold",
 
684
                                   "  ".join(("q: Quit",
 
685
                                              "?: Help",
 
686
                                              "l: Log window toggle",
 
687
                                              "TAB: Switch window",
 
688
                                              "w: Wrap (log lines)",
 
689
                                              "v: Toggle verbose log",
 
690
                                   ))))
 
691
                self.add_log_line(("bold",
 
692
                                   "  ".join(("Clients:",
 
693
                                              "+: Enable",
 
694
                                              "-: Disable",
 
695
                                              "R: Remove",
 
696
                                              "s: Start new checker",
 
697
                                              "S: Stop checker",
 
698
                                              "C: Checker OK",
 
699
                                              "a: Approve",
 
700
                                              "d: Deny",
 
701
                                   ))))
697
702
                self.refresh()
698
703
            elif key == "tab":
699
704
                if self.topwidget.get_focus() is self.logbox:
702
707
                    self.topwidget.set_focus(self.logbox)
703
708
                self.refresh()
704
709
            elif key == "v":
705
 
                if self.log_level == 0:
706
 
                    self.log_level = 1
707
 
                    self.log_message("Verbose mode: Off")
 
710
                if log.level < logging.INFO:
 
711
                    log.setLevel(logging.INFO)
 
712
                    log.info("Verbose mode: Off")
708
713
                else:
709
 
                    self.log_level = 0
710
 
                    self.log_message("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
 
714
                    log.setLevel(logging.NOTSET)
 
715
                    log.info("Verbose mode: On")
 
716
            # elif (key == "end" or key == "meta >" or key == "G"
 
717
            #       or key == ">"):
 
718
            #     pass            # xxx end-of-buffer
 
719
            # elif (key == "home" or key == "meta <" or key == "g"
 
720
            #       or key == "<"):
 
721
            #     pass            # xxx beginning-of-buffer
 
722
            # elif key == "ctrl e" or key == "$":
 
723
            #     pass            # xxx move-end-of-line
 
724
            # elif key == "ctrl a" or key == "^":
 
725
            #     pass            # xxx move-beginning-of-line
 
726
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
727
            #     pass            # xxx left
 
728
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
729
            #     pass            # xxx right
 
730
            # elif key == "a":
 
731
            #     pass            # scroll up log
 
732
            # elif key == "z":
 
733
            #     pass            # scroll down log
729
734
            elif self.topwidget.selectable():
730
735
                self.topwidget.keypress(self.size, key)
731
736
                self.refresh()
732
737
        return True
733
738
 
 
739
 
 
740
class UILogHandler(logging.Handler):
 
741
    def __init__(self, ui, *args, **kwargs):
 
742
        self.ui = ui
 
743
        super(UILogHandler, self).__init__(*args, **kwargs)
 
744
        self.setFormatter(
 
745
            logging.Formatter("%(asctime)s: %(message)s"))
 
746
    def emit(self, record):
 
747
        msg = self.format(record)
 
748
        if record.levelno > logging.INFO:
 
749
            msg = ("bold", msg)
 
750
        self.ui.add_log_line(msg)
 
751
 
 
752
 
734
753
ui = UserInterface()
735
754
try:
736
755
    ui.run()
737
756
except KeyboardInterrupt:
738
 
    ui.screen.stop()
739
 
except Exception as e:
740
 
    ui.log_message(str(e))
741
 
    ui.screen.stop()
 
757
    with warnings.catch_warnings():
 
758
        warnings.filterwarnings("ignore", "", BytesWarning)
 
759
        ui.screen.stop()
 
760
except Exception:
 
761
    with warnings.catch_warnings():
 
762
        warnings.filterwarnings("ignore", "", BytesWarning)
 
763
        ui.screen.stop()
742
764
    raise