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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
 
if sys.version_info[0] == 2:
 
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 = "1.6.4"
 
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
 
            self.proxy.connect_to_signal("PropertyChanged",
91
 
                                         self._property_changed,
92
 
                                         client_interface,
 
100
            self.proxy.connect_to_signal("PropertiesChanged",
 
101
                                         self.properties_changed,
 
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
 
    
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.
 
111
 
 
112
    def properties_changed(self, interface, properties, invalidated):
 
113
        """This is called whenever we get a PropertiesChanged signal
 
114
        It updates the changed properties in the "properties" dict.
110
115
        """
111
116
        # Update properties dict with new value
112
 
        self.properties[property] = value
113
 
    
 
117
        if interface == client_interface:
 
118
            self.properties.update(properties)
 
119
 
114
120
    def delete(self):
115
121
        self.property_changed_match.remove()
116
122
 
118
124
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
119
125
    """A Mandos Client which is visible on the screen.
120
126
    """
121
 
    
 
127
 
122
128
    def __init__(self, server_proxy_object=None, update_hook=None,
123
 
                 delete_hook=None, logger=None, **kwargs):
 
129
                 delete_hook=None, **kwargs):
124
130
        # Called on update
125
131
        self.update_hook = update_hook
126
132
        # Called on delete
127
133
        self.delete_hook = delete_hook
128
134
        # Mandos Server proxy object
129
135
        self.server_proxy_object = server_proxy_object
130
 
        # Logger
131
 
        self.logger = logger
132
 
        
 
136
 
133
137
        self._update_timer_callback_tag = None
134
 
        
 
138
 
135
139
        # The widget shown normally
136
140
        self._text_widget = urwid.Text("")
137
141
        # The widget shown when we have focus
139
143
        super(MandosClientWidget, self).__init__(**kwargs)
140
144
        self.update()
141
145
        self.opened = False
142
 
        
 
146
 
143
147
        self.match_objects = (
144
148
            self.proxy.connect_to_signal("CheckerCompleted",
145
149
                                         self.checker_completed,
161
165
                                         self.rejected,
162
166
                                         client_interface,
163
167
                                         byte_arrays=True))
164
 
        #self.logger('Created client {0}'
165
 
        #            .format(self.properties["Name"]))
166
 
    
 
168
        log.debug("Created client %s", self.properties["Name"])
 
169
 
167
170
    def using_timer(self, flag):
168
171
        """Call this method with True or False when timer should be
169
172
        activated or deactivated.
170
173
        """
171
174
        if flag and self._update_timer_callback_tag is None:
172
175
            # Will update the shown timer value every second
173
 
            self._update_timer_callback_tag = (gobject.timeout_add
174
 
                                               (1000,
175
 
                                                self.update_timer))
 
176
            self._update_timer_callback_tag = (
 
177
                GLib.timeout_add(1000,
 
178
                                 glib_safely(self.update_timer)))
176
179
        elif not (flag or self._update_timer_callback_tag is None):
177
 
            gobject.source_remove(self._update_timer_callback_tag)
 
180
            GLib.source_remove(self._update_timer_callback_tag)
178
181
            self._update_timer_callback_tag = None
179
 
    
 
182
 
180
183
    def checker_completed(self, exitstatus, condition, command):
181
184
        if exitstatus == 0:
 
185
            log.debug('Checker for client %s (command "%s")'
 
186
                      " succeeded", self.properties["Name"], command)
182
187
            self.update()
183
188
            return
184
189
        # Checker failed
185
190
        if os.WIFEXITED(condition):
186
 
            self.logger('Checker for client {0} (command "{1}")'
187
 
                        ' failed with exit code {2}'
188
 
                        .format(self.properties["Name"], command,
189
 
                                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))
190
194
        elif os.WIFSIGNALED(condition):
191
 
            self.logger('Checker for client {0} (command "{1}") was'
192
 
                        ' killed by signal {2}'
193
 
                        .format(self.properties["Name"], command,
194
 
                                os.WTERMSIG(condition)))
195
 
        elif os.WCOREDUMP(condition):
196
 
            self.logger('Checker for client {0} (command "{1}")'
197
 
                        ' dumped core'
198
 
                        .format(self.properties["Name"], command))
199
 
        else:
200
 
            self.logger('Checker for client {0} completed'
201
 
                        ' mysteriously'
202
 
                        .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))
203
198
        self.update()
204
 
    
 
199
 
205
200
    def checker_started(self, command):
206
 
        """Server signals that a checker started. This could be useful
207
 
           to log in the future. """
208
 
        #self.logger('Client {0} started checker "{1}"'
209
 
        #            .format(self.properties["Name"],
210
 
        #                    str(command)))
211
 
        pass
212
 
    
 
201
        """Server signals that a checker started."""
 
202
        log.debug('Client %s started checker "%s"',
 
203
                  self.properties["Name"], command)
 
204
 
213
205
    def got_secret(self):
214
 
        self.logger('Client {0} received its secret'
215
 
                    .format(self.properties["Name"]))
216
 
    
 
206
        log.info("Client %s received its secret",
 
207
                 self.properties["Name"])
 
208
 
217
209
    def need_approval(self, timeout, default):
218
210
        if not default:
219
 
            message = 'Client {0} needs approval within {1} seconds'
 
211
            message = "Client %s needs approval within %f seconds"
220
212
        else:
221
 
            message = 'Client {0} will get its secret in {1} seconds'
222
 
        self.logger(message.format(self.properties["Name"],
223
 
                                   timeout/1000))
224
 
    
 
213
            message = "Client %s will get its secret in %f seconds"
 
214
        log.info(message, self.properties["Name"], timeout/1000)
 
215
 
225
216
    def rejected(self, reason):
226
 
        self.logger('Client {0} was rejected; reason: {1}'
227
 
                    .format(self.properties["Name"], reason))
228
 
    
 
217
        log.info("Client %s was rejected; reason: %s",
 
218
                 self.properties["Name"], reason)
 
219
 
229
220
    def selectable(self):
230
221
        """Make this a "selectable" widget.
231
222
        This overrides the method from urwid.FlowWidget."""
232
223
        return True
233
 
    
 
224
 
234
225
    def rows(self, maxcolrow, focus=False):
235
226
        """How many rows this widget will occupy might depend on
236
227
        whether we have focus or not.
237
228
        This overrides the method from urwid.FlowWidget"""
238
229
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
239
 
    
 
230
 
240
231
    def current_widget(self, focus=False):
241
232
        if focus or self.opened:
242
233
            return self._focus_widget
243
234
        return self._widget
244
 
    
 
235
 
245
236
    def update(self):
246
237
        "Called when what is visible on the screen should be updated."
247
238
        # How to add standout mode to a style
248
 
        with_standout = { "normal": "standout",
249
 
                          "bold": "bold-standout",
250
 
                          "underline-blink":
251
 
                              "underline-blink-standout",
252
 
                          "bold-underline-blink":
253
 
                              "bold-underline-blink-standout",
254
 
                          }
255
 
        
 
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
 
256
247
        # Rebuild focus and non-focus widgets using current properties
257
 
        
 
248
 
258
249
        # Base part of a client. Name!
259
 
        base = '{name}: '.format(name=self.properties["Name"])
 
250
        base = "{name}: ".format(name=self.properties["Name"])
260
251
        if not self.properties["Enabled"]:
261
252
            message = "DISABLED"
262
253
            self.using_timer(False)
263
254
        elif self.properties["ApprovalPending"]:
264
 
            timeout = datetime.timedelta(milliseconds
265
 
                                         = self.properties
266
 
                                         ["ApprovalDelay"])
 
255
            timeout = datetime.timedelta(
 
256
                milliseconds=self.properties["ApprovalDelay"])
267
257
            last_approval_request = isoformat_to_datetime(
268
258
                self.properties["LastApprovalRequest"])
269
259
            if last_approval_request is not None:
273
263
            else:
274
264
                timer = datetime.timedelta()
275
265
            if self.properties["ApprovedByDefault"]:
276
 
                message = "Approval in {0}. (d)eny?"
 
266
                message = "Approval in {}. (d)eny?"
277
267
            else:
278
 
                message = "Denial in {0}. (a)pprove?"
 
268
                message = "Denial in {}. (a)pprove?"
279
269
            message = message.format(str(timer).rsplit(".", 1)[0])
280
270
            self.using_timer(True)
281
271
        elif self.properties["LastCheckerStatus"] != 0:
285
275
                timer = datetime.timedelta(0)
286
276
            else:
287
277
                expires = (datetime.datetime.strptime
288
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
278
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
289
279
                timer = max(expires - datetime.datetime.utcnow(),
290
280
                            datetime.timedelta())
291
 
            message = ('A checker has failed! Time until client'
292
 
                       ' gets disabled: {0}'
 
281
            message = ("A checker has failed! Time until client"
 
282
                       " gets disabled: {}"
293
283
                       .format(str(timer).rsplit(".", 1)[0]))
294
284
            self.using_timer(True)
295
285
        else:
296
286
            message = "enabled"
297
287
            self.using_timer(False)
298
 
        self._text = "{0}{1}".format(base, message)
299
 
        
 
288
        self._text = "{}{}".format(base, message)
 
289
 
300
290
        if not urwid.supports_unicode():
301
291
            self._text = self._text.encode("ascii", "replace")
302
292
        textlist = [("normal", self._text)]
312
302
        # Run update hook, if any
313
303
        if self.update_hook is not None:
314
304
            self.update_hook()
315
 
    
 
305
 
316
306
    def update_timer(self):
317
 
        """called by gobject. Will indefinitely loop until
318
 
        gobject.source_remove() on tag is called"""
 
307
        """called by GLib. Will indefinitely loop until
 
308
        GLib.source_remove() on tag is called
 
309
        """
319
310
        self.update()
320
311
        return True             # Keep calling this
321
 
    
 
312
 
322
313
    def delete(self, **kwargs):
323
314
        if self._update_timer_callback_tag is not None:
324
 
            gobject.source_remove(self._update_timer_callback_tag)
 
315
            GLib.source_remove(self._update_timer_callback_tag)
325
316
            self._update_timer_callback_tag = None
326
317
        for match in self.match_objects:
327
318
            match.remove()
329
320
        if self.delete_hook is not None:
330
321
            self.delete_hook(self)
331
322
        return super(MandosClientWidget, self).delete(**kwargs)
332
 
    
 
323
 
333
324
    def render(self, maxcolrow, focus=False):
334
325
        """Render differently if we have focus.
335
326
        This overrides the method from urwid.FlowWidget"""
336
327
        return self.current_widget(focus).render(maxcolrow,
337
328
                                                 focus=focus)
338
 
    
 
329
 
339
330
    def keypress(self, maxcolrow, key):
340
331
        """Handle keys.
341
332
        This overrides the method from urwid.FlowWidget"""
342
333
        if key == "+":
343
 
            self.proxy.Enable(dbus_interface = client_interface,
344
 
                              ignore_reply=True)
 
334
            self.proxy.Set(client_interface, "Enabled",
 
335
                           dbus.Boolean(True), ignore_reply=True,
 
336
                           dbus_interface=dbus.PROPERTIES_IFACE)
345
337
        elif key == "-":
346
 
            self.proxy.Disable(dbus_interface = client_interface,
347
 
                               ignore_reply=True)
 
338
            self.proxy.Set(client_interface, "Enabled", False,
 
339
                           ignore_reply=True,
 
340
                           dbus_interface=dbus.PROPERTIES_IFACE)
348
341
        elif key == "a":
349
342
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
350
 
                               dbus_interface = client_interface,
 
343
                               dbus_interface=client_interface,
351
344
                               ignore_reply=True)
352
345
        elif key == "d":
353
346
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
354
 
                                  dbus_interface = client_interface,
 
347
                               dbus_interface=client_interface,
355
348
                               ignore_reply=True)
356
349
        elif key == "R" or key == "_" or key == "ctrl k":
357
350
            self.server_proxy_object.RemoveClient(self.proxy
358
351
                                                  .object_path,
359
352
                                                  ignore_reply=True)
360
353
        elif key == "s":
361
 
            self.proxy.StartChecker(dbus_interface = client_interface,
362
 
                                    ignore_reply=True)
 
354
            self.proxy.Set(client_interface, "CheckerRunning",
 
355
                           dbus.Boolean(True), ignore_reply=True,
 
356
                           dbus_interface=dbus.PROPERTIES_IFACE)
363
357
        elif key == "S":
364
 
            self.proxy.StopChecker(dbus_interface = client_interface,
365
 
                                   ignore_reply=True)
 
358
            self.proxy.Set(client_interface, "CheckerRunning",
 
359
                           dbus.Boolean(False), ignore_reply=True,
 
360
                           dbus_interface=dbus.PROPERTIES_IFACE)
366
361
        elif key == "C":
367
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
362
            self.proxy.CheckedOK(dbus_interface=client_interface,
368
363
                                 ignore_reply=True)
369
364
        # xxx
370
365
#         elif key == "p" or key == "=":
375
370
#             self.open()
376
371
        else:
377
372
            return key
378
 
    
379
 
    def property_changed(self, property=None, **kwargs):
380
 
        """Call self.update() if old value is not new value.
 
373
 
 
374
    def properties_changed(self, interface, properties, invalidated):
 
375
        """Call self.update() if any properties changed.
381
376
        This overrides the method from MandosClientPropertyCache"""
382
 
        property_name = str(property)
383
 
        old_value = self.properties.get(property_name)
384
 
        super(MandosClientWidget, self).property_changed(
385
 
            property=property, **kwargs)
386
 
        if self.properties.get(property_name) != old_value:
 
377
        old_values = {key: self.properties.get(key)
 
378
                      for key in properties.keys()}
 
379
        super(MandosClientWidget, self).properties_changed(
 
380
            interface, properties, invalidated)
 
381
        if any(old_values[key] != self.properties.get(key)
 
382
               for key in old_values):
387
383
            self.update()
388
384
 
389
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
 
390
396
class ConstrainedListBox(urwid.ListBox):
391
397
    """Like a normal urwid.ListBox, but will consume all "up" or
392
398
    "down" key presses, thus not allowing any containing widgets to
393
399
    use them as an excuse to shift focus away from this widget.
394
400
    """
395
401
    def keypress(self, *args, **kwargs):
396
 
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
402
        ret = (super(ConstrainedListBox, self)
 
403
               .keypress(*args, **kwargs))
397
404
        if ret in ("up", "down"):
398
405
            return
399
406
        return ret
405
412
    """
406
413
    def __init__(self, max_log_length=1000):
407
414
        DBusGMainLoop(set_as_default=True)
408
 
        
 
415
 
409
416
        self.screen = urwid.curses_display.Screen()
410
 
        
 
417
 
411
418
        self.screen.register_palette((
412
419
                ("normal",
413
420
                 "default", "default", None),
418
425
                ("standout",
419
426
                 "standout", "default", "standout"),
420
427
                ("bold-underline-blink",
421
 
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
428
                 "bold,underline,blink", "default",
 
429
                 "bold,underline,blink"),
422
430
                ("bold-standout",
423
431
                 "bold,standout", "default", "bold,standout"),
424
432
                ("underline-blink-standout",
428
436
                 "bold,underline,blink,standout", "default",
429
437
                 "bold,underline,blink,standout"),
430
438
                ))
431
 
        
 
439
 
432
440
        if urwid.supports_unicode():
433
 
            self.divider = "─" # \u2500
434
 
            #self.divider = "━" # \u2501
 
441
            self.divider = "─"  # \u2500
435
442
        else:
436
 
            #self.divider = "-" # \u002d
437
 
            self.divider = "_" # \u005f
438
 
        
 
443
            self.divider = "_"  # \u005f
 
444
 
439
445
        self.screen.start()
440
 
        
 
446
 
441
447
        self.size = self.screen.get_cols_rows()
442
 
        
 
448
 
443
449
        self.clients = urwid.SimpleListWalker([])
444
450
        self.clients_dict = {}
445
 
        
 
451
 
446
452
        # We will add Text widgets to this list
447
 
        self.log = []
 
453
        self.log = urwid.SimpleListWalker([])
448
454
        self.max_log_length = max_log_length
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 {0} and fingerprint"
470
 
                         " {1} 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):
490
 
        """Log message formatted with timestamp"""
491
 
        timestamp = datetime.datetime.now().isoformat()
492
 
        self.log_message_raw(timestamp + ": " + message)
493
 
    
494
 
    def log_message_raw(self, markup):
495
 
        """Add a log message to the log buffer."""
 
493
 
 
494
    def add_log_line(self, markup):
496
495
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
497
 
        if (self.max_log_length
498
 
            and len(self.log) > self.max_log_length):
499
 
            del self.log[0:len(self.log)-self.max_log_length-1]
500
 
        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,
501
500
                              coming_from="above")
502
501
        self.refresh()
503
 
    
 
502
 
504
503
    def toggle_log_display(self):
505
504
        """Toggle visibility of the log buffer."""
506
505
        self.log_visible = not self.log_visible
507
506
        self.rebuild()
508
 
        #self.log_message("Log visibility changed to: "
509
 
        #                 + str(self.log_visible))
510
 
    
 
507
        log.debug("Log visibility changed to: %s", self.log_visible)
 
508
 
511
509
    def change_log_display(self):
512
510
        """Change type of log display.
513
511
        Currently, this toggles wrapping of text lines."""
517
515
            self.log_wrap = "clip"
518
516
        for textwidget in self.log:
519
517
            textwidget.set_wrap_mode(self.log_wrap)
520
 
        #self.log_message("Wrap mode: " + self.log_wrap)
521
 
    
522
 
    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):
523
521
        """Find a client by its object path and remove it.
524
 
        
525
 
        This is connected to the ClientRemoved signal from the
 
522
 
 
523
        This is connected to the InterfacesRemoved signal from the
526
524
        Mandos server object."""
 
525
        if client_interface not in interfaces:
 
526
            # Not a Mandos client object; ignore
 
527
            return
527
528
        try:
528
529
            client = self.clients_dict[path]
529
530
        except KeyError:
530
531
            # not found?
531
 
            self.log_message("Unknown client {0!r} ({1!r}) removed"
532
 
                             .format(name, path))
 
532
            log.warning("Unknown client %s removed", path)
533
533
            return
534
534
        client.delete()
535
 
    
536
 
    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
537
545
        client_proxy_object = self.bus.get_object(self.busname, path)
538
 
        self.add_client(MandosClientWidget(server_proxy_object
539
 
                                           =self.mandos_serv,
540
 
                                           proxy_object
541
 
                                           =client_proxy_object,
542
 
                                           update_hook
543
 
                                           =self.refresh,
544
 
                                           delete_hook
545
 
                                           =self.remove_client,
546
 
                                           logger
547
 
                                           =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])),
548
552
                        path=path)
549
 
    
 
553
 
550
554
    def add_client(self, client, path=None):
551
555
        self.clients.append(client)
552
556
        if path is None:
554
558
        self.clients_dict[path] = client
555
559
        self.clients.sort(key=lambda c: c.properties["Name"])
556
560
        self.refresh()
557
 
    
 
561
 
558
562
    def remove_client(self, client, path=None):
559
563
        self.clients.remove(client)
560
564
        if path is None:
561
565
            path = client.proxy.object_path
562
566
        del self.clients_dict[path]
563
567
        self.refresh()
564
 
    
 
568
 
565
569
    def refresh(self):
566
570
        """Redraw the screen"""
567
571
        canvas = self.topwidget.render(self.size, focus=True)
568
572
        self.screen.draw_screen(self.size, canvas)
569
 
    
 
573
 
570
574
    def run(self):
571
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")
572
581
        self.bus = dbus.SystemBus()
573
582
        mandos_dbus_objc = self.bus.get_object(
574
583
            self.busname, "/", follow_name_owner_changes=True)
575
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
576
 
                                          dbus_interface
577
 
                                          = server_interface)
 
584
        self.mandos_serv = dbus.Interface(
 
585
            mandos_dbus_objc, dbus_interface=server_interface)
578
586
        try:
579
587
            mandos_clients = (self.mandos_serv
580
588
                              .GetAllClientsWithProperties())
581
589
            if not mandos_clients:
582
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
590
                log.warning("Note: Server has no clients.")
583
591
        except dbus.exceptions.DBusException:
584
 
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
592
            log.warning("Note: No Mandos server running.")
585
593
            mandos_clients = dbus.Dictionary()
586
 
        
 
594
 
587
595
        (self.mandos_serv
588
 
         .connect_to_signal("ClientRemoved",
 
596
         .connect_to_signal("InterfacesRemoved",
589
597
                            self.find_and_remove_client,
590
 
                            dbus_interface=server_interface,
 
598
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
591
599
                            byte_arrays=True))
592
600
        (self.mandos_serv
593
 
         .connect_to_signal("ClientAdded",
 
601
         .connect_to_signal("InterfacesAdded",
594
602
                            self.add_new_client,
595
 
                            dbus_interface=server_interface,
 
603
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
596
604
                            byte_arrays=True))
597
605
        (self.mandos_serv
598
606
         .connect_to_signal("ClientNotFound",
602
610
        for path, client in mandos_clients.items():
603
611
            client_proxy_object = self.bus.get_object(self.busname,
604
612
                                                      path)
605
 
            self.add_client(MandosClientWidget(server_proxy_object
606
 
                                               =self.mandos_serv,
607
 
                                               proxy_object
608
 
                                               =client_proxy_object,
609
 
                                               properties=client,
610
 
                                               update_hook
611
 
                                               =self.refresh,
612
 
                                               delete_hook
613
 
                                               =self.remove_client,
614
 
                                               logger
615
 
                                               =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),
616
619
                            path=path)
617
 
        
 
620
 
618
621
        self.refresh()
619
 
        self._input_callback_tag = (gobject.io_add_watch
620
 
                                    (sys.stdin.fileno(),
621
 
                                     gobject.IO_IN,
622
 
                                     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)))
623
627
        self.main_loop.run()
624
628
        # Main loop has finished, we should close everything now
625
 
        gobject.source_remove(self._input_callback_tag)
626
 
        self.screen.stop()
627
 
    
 
629
        GLib.source_remove(self._input_callback_tag)
 
630
        with warnings.catch_warnings():
 
631
            warnings.simplefilter("ignore", BytesWarning)
 
632
            self.screen.stop()
 
633
 
628
634
    def stop(self):
629
635
        self.main_loop.quit()
630
 
    
 
636
        log.removeHandler(self.loghandler)
 
637
        log.propagate = self.orig_log_propagate
 
638
 
631
639
    def process_input(self, source, condition):
632
640
        keys = self.screen.get_input()
633
 
        translations = { "ctrl n": "down",      # Emacs
634
 
                         "ctrl p": "up",        # Emacs
635
 
                         "ctrl v": "page down", # Emacs
636
 
                         "meta v": "page up",   # Emacs
637
 
                         " ": "page down",      # less
638
 
                         "f": "page down",      # less
639
 
                         "b": "page up",        # less
640
 
                         "j": "down",           # vi
641
 
                         "k": "up",             # vi
642
 
                         }
 
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
                        }
643
651
        for key in keys:
644
652
            try:
645
653
                key = translations[key]
646
654
            except KeyError:    # :-)
647
655
                pass
648
 
            
 
656
 
649
657
            if key == "q" or key == "Q":
650
658
                self.stop()
651
659
                break
652
660
            elif key == "window resize":
653
661
                self.size = self.screen.get_cols_rows()
654
662
                self.refresh()
655
 
            elif key == "\f":  # Ctrl-L
 
663
            elif key == "ctrl l":
 
664
                self.screen.clear()
656
665
                self.refresh()
657
666
            elif key == "l" or key == "D":
658
667
                self.toggle_log_display()
664
673
                if not self.log_visible:
665
674
                    self.log_visible = True
666
675
                    self.rebuild()
667
 
                self.log_message_raw(("bold",
668
 
                                      "  ".
669
 
                                      join(("q: Quit",
670
 
                                            "?: Help",
671
 
                                            "l: Log window toggle",
672
 
                                            "TAB: Switch window",
673
 
                                            "w: Wrap (log)"))))
674
 
                self.log_message_raw(("bold",
675
 
                                      "  "
676
 
                                      .join(("Clients:",
677
 
                                             "+: Enable",
678
 
                                             "-: Disable",
679
 
                                             "R: Remove",
680
 
                                             "s: Start new checker",
681
 
                                             "S: Stop checker",
682
 
                                             "C: Checker OK",
683
 
                                             "a: Approve",
684
 
                                             "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
                                   ))))
685
695
                self.refresh()
686
696
            elif key == "tab":
687
697
                if self.topwidget.get_focus() is self.logbox:
689
699
                else:
690
700
                    self.topwidget.set_focus(self.logbox)
691
701
                self.refresh()
692
 
            #elif (key == "end" or key == "meta >" or key == "G"
693
 
            #      or key == ">"):
694
 
            #    pass            # xxx end-of-buffer
695
 
            #elif (key == "home" or key == "meta <" or key == "g"
696
 
            #      or key == "<"):
697
 
            #    pass            # xxx beginning-of-buffer
698
 
            #elif key == "ctrl e" or key == "$":
699
 
            #    pass            # xxx move-end-of-line
700
 
            #elif key == "ctrl a" or key == "^":
701
 
            #    pass            # xxx move-beginning-of-line
702
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
703
 
            #    pass            # xxx left
704
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
705
 
            #    pass            # xxx right
706
 
            #elif key == "a":
707
 
            #    pass            # scroll up log
708
 
            #elif key == "z":
709
 
            #    pass            # scroll down log
 
702
            elif key == "v":
 
703
                if log.level < logging.INFO:
 
704
                    log.setLevel(logging.INFO)
 
705
                    log.info("Verbose mode: Off")
 
706
                else:
 
707
                    log.setLevel(logging.NOTSET)
 
708
                    log.info("Verbose mode: On")
 
709
            # elif (key == "end" or key == "meta >" or key == "G"
 
710
            #       or key == ">"):
 
711
            #     pass            # xxx end-of-buffer
 
712
            # elif (key == "home" or key == "meta <" or key == "g"
 
713
            #       or key == "<"):
 
714
            #     pass            # xxx beginning-of-buffer
 
715
            # elif key == "ctrl e" or key == "$":
 
716
            #     pass            # xxx move-end-of-line
 
717
            # elif key == "ctrl a" or key == "^":
 
718
            #     pass            # xxx move-beginning-of-line
 
719
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
720
            #     pass            # xxx left
 
721
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
722
            #     pass            # xxx right
 
723
            # elif key == "a":
 
724
            #     pass            # scroll up log
 
725
            # elif key == "z":
 
726
            #     pass            # scroll down log
710
727
            elif self.topwidget.selectable():
711
728
                self.topwidget.keypress(self.size, key)
712
729
                self.refresh()
713
730
        return True
714
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
 
715
746
ui = UserInterface()
716
747
try:
717
748
    ui.run()
718
749
except KeyboardInterrupt:
719
 
    ui.screen.stop()
720
 
except Exception as e:
721
 
    ui.log_message(str(e))
722
 
    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()
723
757
    raise