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  • Committer: teddy at recompile
  • Date: 2019-12-04 23:46:59 UTC
  • Revision ID: teddy@recompile.se-20191204234659-m4u7bxnjrns6d3fc
Simplification of Python 3 compatibility code

Apply previously-made change in mandos and mandos-ctl also to
mandos-monitor.

* mandos-monitor: Set "__metaclass__ = type" globally for Python 2,
  and remove inheriting from "object" in all places possible.

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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 © 2009-2013 Teddy Hogeborn
7
 
# Copyright © 2009-2013 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
 
import signal
36
 
 
 
36
import warnings
37
37
import datetime
 
38
import locale
 
39
import logging
38
40
 
39
41
import urwid.curses_display
40
42
import urwid
41
43
 
42
44
from dbus.mainloop.glib import DBusGMainLoop
43
 
try:
44
 
    import gobject
45
 
except ImportError:
46
 
    from gi.repository import GObject as gobject
 
45
from gi.repository import GLib
47
46
 
48
47
import dbus
49
48
 
50
 
import locale
51
 
 
52
 
if sys.version_info[0] == 2:
 
49
if sys.version_info.major == 2:
 
50
    __metaclass__ = type
53
51
    str = unicode
54
52
 
55
 
locale.setlocale(locale.LC_ALL, '')
56
 
 
57
 
import logging
58
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
53
log = logging.getLogger(os.path.basename(sys.argv[0]))
 
54
logging.basicConfig(level="NOTSET", # Show all messages
 
55
                    format="%(message)s") # Show basic log messages
 
56
 
 
57
logging.captureWarnings(True)   # Show warnings via the logging system
 
58
 
 
59
locale.setlocale(locale.LC_ALL, "")
 
60
 
 
61
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
59
62
 
60
63
# Some useful constants
61
 
domain = 'se.recompile'
62
 
server_interface = domain + '.Mandos'
63
 
client_interface = domain + '.Mandos.Client'
64
 
version = "1.6.2"
 
64
domain = "se.recompile"
 
65
server_interface = domain + ".Mandos"
 
66
client_interface = domain + ".Mandos.Client"
 
67
version = "1.8.9"
 
68
 
 
69
try:
 
70
    dbus.OBJECT_MANAGER_IFACE
 
71
except AttributeError:
 
72
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
73
 
65
74
 
66
75
def isoformat_to_datetime(iso):
67
76
    "Parse an ISO 8601 date string to a datetime.datetime()"
76
85
                             int(day),
77
86
                             int(hour),
78
87
                             int(minute),
79
 
                             int(second),           # Whole seconds
80
 
                             int(fraction*1000000)) # Microseconds
81
 
 
82
 
class MandosClientPropertyCache(object):
 
88
                             int(second),            # Whole seconds
 
89
                             int(fraction*1000000))  # Microseconds
 
90
 
 
91
 
 
92
class MandosClientPropertyCache:
83
93
    """This wraps a Mandos Client D-Bus proxy object, caches the
84
94
    properties and calls a hook function when any of them are
85
95
    changed.
86
96
    """
87
97
    def __init__(self, proxy_object=None, properties=None, **kwargs):
88
 
        self.proxy = proxy_object # Mandos Client proxy object
 
98
        self.proxy = proxy_object  # Mandos Client proxy object
89
99
        self.properties = dict() if properties is None else properties
90
100
        self.property_changed_match = (
91
 
            self.proxy.connect_to_signal("PropertyChanged",
92
 
                                         self._property_changed,
93
 
                                         client_interface,
 
101
            self.proxy.connect_to_signal("PropertiesChanged",
 
102
                                         self.properties_changed,
 
103
                                         dbus.PROPERTIES_IFACE,
94
104
                                         byte_arrays=True))
95
 
        
 
105
 
96
106
        if properties is None:
97
 
            self.properties.update(
98
 
                self.proxy.GetAll(client_interface,
99
 
                                  dbus_interface
100
 
                                  = dbus.PROPERTIES_IFACE))
101
 
        
 
107
            self.properties.update(self.proxy.GetAll(
 
108
                client_interface,
 
109
                dbus_interface=dbus.PROPERTIES_IFACE))
 
110
 
102
111
        super(MandosClientPropertyCache, self).__init__(**kwargs)
103
 
    
104
 
    def _property_changed(self, property, value):
105
 
        """Helper which takes positional arguments"""
106
 
        return self.property_changed(property=property, value=value)
107
 
    
108
 
    def property_changed(self, property=None, value=None):
109
 
        """This is called whenever we get a PropertyChanged signal
110
 
        It updates the changed property in the "properties" dict.
 
112
 
 
113
    def properties_changed(self, interface, properties, invalidated):
 
114
        """This is called whenever we get a PropertiesChanged signal
 
115
        It updates the changed properties in the "properties" dict.
111
116
        """
112
117
        # Update properties dict with new value
113
 
        self.properties[property] = value
114
 
    
 
118
        if interface == client_interface:
 
119
            self.properties.update(properties)
 
120
 
115
121
    def delete(self):
116
122
        self.property_changed_match.remove()
117
123
 
119
125
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
120
126
    """A Mandos Client which is visible on the screen.
121
127
    """
122
 
    
 
128
 
123
129
    def __init__(self, server_proxy_object=None, update_hook=None,
124
 
                 delete_hook=None, logger=None, **kwargs):
 
130
                 delete_hook=None, **kwargs):
125
131
        # Called on update
126
132
        self.update_hook = update_hook
127
133
        # Called on delete
128
134
        self.delete_hook = delete_hook
129
135
        # Mandos Server proxy object
130
136
        self.server_proxy_object = server_proxy_object
131
 
        # Logger
132
 
        self.logger = logger
133
 
        
 
137
 
134
138
        self._update_timer_callback_tag = None
135
 
        
 
139
 
136
140
        # The widget shown normally
137
141
        self._text_widget = urwid.Text("")
138
142
        # The widget shown when we have focus
140
144
        super(MandosClientWidget, self).__init__(**kwargs)
141
145
        self.update()
142
146
        self.opened = False
143
 
        
 
147
 
144
148
        self.match_objects = (
145
149
            self.proxy.connect_to_signal("CheckerCompleted",
146
150
                                         self.checker_completed,
162
166
                                         self.rejected,
163
167
                                         client_interface,
164
168
                                         byte_arrays=True))
165
 
        #self.logger('Created client {0}'
166
 
        #            .format(self.properties["Name"]))
167
 
    
 
169
        log.debug("Created client %s", self.properties["Name"])
 
170
 
168
171
    def using_timer(self, flag):
169
172
        """Call this method with True or False when timer should be
170
173
        activated or deactivated.
171
174
        """
172
175
        if flag and self._update_timer_callback_tag is None:
173
176
            # Will update the shown timer value every second
174
 
            self._update_timer_callback_tag = (gobject.timeout_add
175
 
                                               (1000,
176
 
                                                self.update_timer))
 
177
            self._update_timer_callback_tag = (
 
178
                GLib.timeout_add(1000,
 
179
                                 glib_safely(self.update_timer)))
177
180
        elif not (flag or self._update_timer_callback_tag is None):
178
 
            gobject.source_remove(self._update_timer_callback_tag)
 
181
            GLib.source_remove(self._update_timer_callback_tag)
179
182
            self._update_timer_callback_tag = None
180
 
    
 
183
 
181
184
    def checker_completed(self, exitstatus, condition, command):
182
185
        if exitstatus == 0:
 
186
            log.debug('Checker for client %s (command "%s")'
 
187
                      " succeeded", self.properties["Name"], command)
183
188
            self.update()
184
189
            return
185
190
        # Checker failed
186
191
        if os.WIFEXITED(condition):
187
 
            self.logger('Checker for client {0} (command "{1}")'
188
 
                        ' failed with exit code {2}'
189
 
                        .format(self.properties["Name"], command,
190
 
                                os.WEXITSTATUS(condition)))
 
192
            log.info('Checker for client %s (command "%s") failed'
 
193
                     " with exit code %d", self.properties["Name"],
 
194
                     command, os.WEXITSTATUS(condition))
191
195
        elif os.WIFSIGNALED(condition):
192
 
            self.logger('Checker for client {0} (command "{1}") was'
193
 
                        ' killed by signal {2}'
194
 
                        .format(self.properties["Name"], command,
195
 
                                os.WTERMSIG(condition)))
196
 
        elif os.WCOREDUMP(condition):
197
 
            self.logger('Checker for client {0} (command "{1}")'
198
 
                        ' dumped core'
199
 
                        .format(self.properties["Name"], command))
200
 
        else:
201
 
            self.logger('Checker for client {0} completed'
202
 
                        ' mysteriously'
203
 
                        .format(self.properties["Name"]))
 
196
            log.info('Checker for client %s (command "%s") was'
 
197
                     " killed by signal %d", self.properties["Name"],
 
198
                     command, os.WTERMSIG(condition))
204
199
        self.update()
205
 
    
 
200
 
206
201
    def checker_started(self, command):
207
 
        """Server signals that a checker started. This could be useful
208
 
           to log in the future. """
209
 
        #self.logger('Client {0} started checker "{1}"'
210
 
        #            .format(self.properties["Name"],
211
 
        #                    str(command)))
212
 
        pass
213
 
    
 
202
        """Server signals that a checker started."""
 
203
        log.debug('Client %s started checker "%s"',
 
204
                  self.properties["Name"], command)
 
205
 
214
206
    def got_secret(self):
215
 
        self.logger('Client {0} received its secret'
216
 
                    .format(self.properties["Name"]))
217
 
    
 
207
        log.info("Client %s received its secret",
 
208
                 self.properties["Name"])
 
209
 
218
210
    def need_approval(self, timeout, default):
219
211
        if not default:
220
 
            message = 'Client {0} needs approval within {1} seconds'
 
212
            message = "Client %s needs approval within %f seconds"
221
213
        else:
222
 
            message = 'Client {0} will get its secret in {1} seconds'
223
 
        self.logger(message.format(self.properties["Name"],
224
 
                                   timeout/1000))
225
 
    
 
214
            message = "Client %s will get its secret in %f seconds"
 
215
        log.info(message, self.properties["Name"], timeout/1000)
 
216
 
226
217
    def rejected(self, reason):
227
 
        self.logger('Client {0} was rejected; reason: {1}'
228
 
                    .format(self.properties["Name"], reason))
229
 
    
 
218
        log.info("Client %s was rejected; reason: %s",
 
219
                 self.properties["Name"], reason)
 
220
 
230
221
    def selectable(self):
231
222
        """Make this a "selectable" widget.
232
223
        This overrides the method from urwid.FlowWidget."""
233
224
        return True
234
 
    
 
225
 
235
226
    def rows(self, maxcolrow, focus=False):
236
227
        """How many rows this widget will occupy might depend on
237
228
        whether we have focus or not.
238
229
        This overrides the method from urwid.FlowWidget"""
239
230
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
240
 
    
 
231
 
241
232
    def current_widget(self, focus=False):
242
233
        if focus or self.opened:
243
234
            return self._focus_widget
244
235
        return self._widget
245
 
    
 
236
 
246
237
    def update(self):
247
238
        "Called when what is visible on the screen should be updated."
248
239
        # 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
 
        
 
240
        with_standout = {"normal": "standout",
 
241
                         "bold": "bold-standout",
 
242
                         "underline-blink":
 
243
                         "underline-blink-standout",
 
244
                         "bold-underline-blink":
 
245
                         "bold-underline-blink-standout",
 
246
                         }
 
247
 
257
248
        # Rebuild focus and non-focus widgets using current properties
258
 
        
 
249
 
259
250
        # Base part of a client. Name!
260
 
        base = '{name}: '.format(name=self.properties["Name"])
 
251
        base = "{name}: ".format(name=self.properties["Name"])
261
252
        if not self.properties["Enabled"]:
262
253
            message = "DISABLED"
263
254
            self.using_timer(False)
264
255
        elif self.properties["ApprovalPending"]:
265
 
            timeout = datetime.timedelta(milliseconds
266
 
                                         = self.properties
267
 
                                         ["ApprovalDelay"])
 
256
            timeout = datetime.timedelta(
 
257
                milliseconds=self.properties["ApprovalDelay"])
268
258
            last_approval_request = isoformat_to_datetime(
269
259
                self.properties["LastApprovalRequest"])
270
260
            if last_approval_request is not None:
274
264
            else:
275
265
                timer = datetime.timedelta()
276
266
            if self.properties["ApprovedByDefault"]:
277
 
                message = "Approval in {0}. (d)eny?"
 
267
                message = "Approval in {}. (d)eny?"
278
268
            else:
279
 
                message = "Denial in {0}. (a)pprove?"
 
269
                message = "Denial in {}. (a)pprove?"
280
270
            message = message.format(str(timer).rsplit(".", 1)[0])
281
271
            self.using_timer(True)
282
272
        elif self.properties["LastCheckerStatus"] != 0:
286
276
                timer = datetime.timedelta(0)
287
277
            else:
288
278
                expires = (datetime.datetime.strptime
289
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
279
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
290
280
                timer = max(expires - datetime.datetime.utcnow(),
291
281
                            datetime.timedelta())
292
 
            message = ('A checker has failed! Time until client'
293
 
                       ' gets disabled: {0}'
 
282
            message = ("A checker has failed! Time until client"
 
283
                       " gets disabled: {}"
294
284
                       .format(str(timer).rsplit(".", 1)[0]))
295
285
            self.using_timer(True)
296
286
        else:
297
287
            message = "enabled"
298
288
            self.using_timer(False)
299
 
        self._text = "{0}{1}".format(base, message)
300
 
        
 
289
        self._text = "{}{}".format(base, message)
 
290
 
301
291
        if not urwid.supports_unicode():
302
292
            self._text = self._text.encode("ascii", "replace")
303
293
        textlist = [("normal", self._text)]
313
303
        # Run update hook, if any
314
304
        if self.update_hook is not None:
315
305
            self.update_hook()
316
 
    
 
306
 
317
307
    def update_timer(self):
318
 
        """called by gobject. Will indefinitely loop until
319
 
        gobject.source_remove() on tag is called"""
 
308
        """called by GLib. Will indefinitely loop until
 
309
        GLib.source_remove() on tag is called
 
310
        """
320
311
        self.update()
321
312
        return True             # Keep calling this
322
 
    
 
313
 
323
314
    def delete(self, **kwargs):
324
315
        if self._update_timer_callback_tag is not None:
325
 
            gobject.source_remove(self._update_timer_callback_tag)
 
316
            GLib.source_remove(self._update_timer_callback_tag)
326
317
            self._update_timer_callback_tag = None
327
318
        for match in self.match_objects:
328
319
            match.remove()
330
321
        if self.delete_hook is not None:
331
322
            self.delete_hook(self)
332
323
        return super(MandosClientWidget, self).delete(**kwargs)
333
 
    
 
324
 
334
325
    def render(self, maxcolrow, focus=False):
335
326
        """Render differently if we have focus.
336
327
        This overrides the method from urwid.FlowWidget"""
337
328
        return self.current_widget(focus).render(maxcolrow,
338
329
                                                 focus=focus)
339
 
    
 
330
 
340
331
    def keypress(self, maxcolrow, key):
341
332
        """Handle keys.
342
333
        This overrides the method from urwid.FlowWidget"""
343
334
        if key == "+":
344
 
            self.proxy.Enable(dbus_interface = client_interface,
345
 
                              ignore_reply=True)
 
335
            self.proxy.Set(client_interface, "Enabled",
 
336
                           dbus.Boolean(True), ignore_reply=True,
 
337
                           dbus_interface=dbus.PROPERTIES_IFACE)
346
338
        elif key == "-":
347
 
            self.proxy.Disable(dbus_interface = client_interface,
348
 
                               ignore_reply=True)
 
339
            self.proxy.Set(client_interface, "Enabled", False,
 
340
                           ignore_reply=True,
 
341
                           dbus_interface=dbus.PROPERTIES_IFACE)
349
342
        elif key == "a":
350
343
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
351
 
                               dbus_interface = client_interface,
 
344
                               dbus_interface=client_interface,
352
345
                               ignore_reply=True)
353
346
        elif key == "d":
354
347
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
355
 
                                  dbus_interface = client_interface,
 
348
                               dbus_interface=client_interface,
356
349
                               ignore_reply=True)
357
350
        elif key == "R" or key == "_" or key == "ctrl k":
358
351
            self.server_proxy_object.RemoveClient(self.proxy
359
352
                                                  .object_path,
360
353
                                                  ignore_reply=True)
361
354
        elif key == "s":
362
 
            self.proxy.StartChecker(dbus_interface = client_interface,
363
 
                                    ignore_reply=True)
 
355
            self.proxy.Set(client_interface, "CheckerRunning",
 
356
                           dbus.Boolean(True), ignore_reply=True,
 
357
                           dbus_interface=dbus.PROPERTIES_IFACE)
364
358
        elif key == "S":
365
 
            self.proxy.StopChecker(dbus_interface = client_interface,
366
 
                                   ignore_reply=True)
 
359
            self.proxy.Set(client_interface, "CheckerRunning",
 
360
                           dbus.Boolean(False), ignore_reply=True,
 
361
                           dbus_interface=dbus.PROPERTIES_IFACE)
367
362
        elif key == "C":
368
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
363
            self.proxy.CheckedOK(dbus_interface=client_interface,
369
364
                                 ignore_reply=True)
370
365
        # xxx
371
366
#         elif key == "p" or key == "=":
376
371
#             self.open()
377
372
        else:
378
373
            return key
379
 
    
380
 
    def property_changed(self, property=None, **kwargs):
381
 
        """Call self.update() if old value is not new value.
 
374
 
 
375
    def properties_changed(self, interface, properties, invalidated):
 
376
        """Call self.update() if any properties changed.
382
377
        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:
 
378
        old_values = {key: self.properties.get(key)
 
379
                      for key in properties.keys()}
 
380
        super(MandosClientWidget, self).properties_changed(
 
381
            interface, properties, invalidated)
 
382
        if any(old_values[key] != self.properties.get(key)
 
383
               for key in old_values):
388
384
            self.update()
389
385
 
390
386
 
 
387
def glib_safely(func, retval=True):
 
388
    def safe_func(*args, **kwargs):
 
389
        try:
 
390
            return func(*args, **kwargs)
 
391
        except Exception:
 
392
            log.exception("")
 
393
            return retval
 
394
    return safe_func
 
395
 
 
396
 
391
397
class ConstrainedListBox(urwid.ListBox):
392
398
    """Like a normal urwid.ListBox, but will consume all "up" or
393
399
    "down" key presses, thus not allowing any containing widgets to
394
400
    use them as an excuse to shift focus away from this widget.
395
401
    """
396
402
    def keypress(self, *args, **kwargs):
397
 
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
403
        ret = (super(ConstrainedListBox, self)
 
404
               .keypress(*args, **kwargs))
398
405
        if ret in ("up", "down"):
399
406
            return
400
407
        return ret
401
408
 
402
409
 
403
 
class UserInterface(object):
 
410
class UserInterface:
404
411
    """This is the entire user interface - the whole screen
405
412
    with boxes, lists of client widgets, etc.
406
413
    """
407
414
    def __init__(self, max_log_length=1000):
408
415
        DBusGMainLoop(set_as_default=True)
409
 
        
 
416
 
410
417
        self.screen = urwid.curses_display.Screen()
411
 
        
 
418
 
412
419
        self.screen.register_palette((
413
420
                ("normal",
414
421
                 "default", "default", None),
419
426
                ("standout",
420
427
                 "standout", "default", "standout"),
421
428
                ("bold-underline-blink",
422
 
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
429
                 "bold,underline,blink", "default",
 
430
                 "bold,underline,blink"),
423
431
                ("bold-standout",
424
432
                 "bold,standout", "default", "bold,standout"),
425
433
                ("underline-blink-standout",
429
437
                 "bold,underline,blink,standout", "default",
430
438
                 "bold,underline,blink,standout"),
431
439
                ))
432
 
        
 
440
 
433
441
        if urwid.supports_unicode():
434
 
            self.divider = "─" # \u2500
435
 
            #self.divider = "━" # \u2501
 
442
            self.divider = "─"  # \u2500
436
443
        else:
437
 
            #self.divider = "-" # \u002d
438
 
            self.divider = "_" # \u005f
439
 
        
 
444
            self.divider = "_"  # \u005f
 
445
 
440
446
        self.screen.start()
441
 
        
 
447
 
442
448
        self.size = self.screen.get_cols_rows()
443
 
        
 
449
 
444
450
        self.clients = urwid.SimpleListWalker([])
445
451
        self.clients_dict = {}
446
 
        
 
452
 
447
453
        # We will add Text widgets to this list
448
 
        self.log = []
 
454
        self.log = urwid.SimpleListWalker([])
449
455
        self.max_log_length = max_log_length
450
 
        
 
456
 
451
457
        # We keep a reference to the log widget so we can remove it
452
458
        # from the ListWalker without it getting destroyed
453
459
        self.logbox = ConstrainedListBox(self.log)
454
 
        
 
460
 
455
461
        # This keeps track of whether self.uilist currently has
456
462
        # self.logbox in it or not
457
463
        self.log_visible = True
458
464
        self.log_wrap = "any"
459
 
        
 
465
 
 
466
        self.loghandler = UILogHandler(self)
 
467
 
460
468
        self.rebuild()
461
 
        self.log_message_raw(("bold",
462
 
                              "Mandos Monitor version " + version))
463
 
        self.log_message_raw(("bold",
464
 
                              "q: Quit  ?: Help"))
465
 
        
466
 
        self.busname = domain + '.Mandos'
467
 
        self.main_loop = gobject.MainLoop()
468
 
    
469
 
    def client_not_found(self, fingerprint, address):
470
 
        self.log_message("Client with address {0} and fingerprint"
471
 
                         " {1} could not be found"
472
 
                         .format(address, fingerprint))
473
 
    
 
469
        self.add_log_line(("bold",
 
470
                           "Mandos Monitor version " + version))
 
471
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
472
 
 
473
        self.busname = domain + ".Mandos"
 
474
        self.main_loop = GLib.MainLoop()
 
475
 
 
476
    def client_not_found(self, key_id, address):
 
477
        log.info("Client with address %s and key ID %s could"
 
478
                 " not be found", address, key_id)
 
479
 
474
480
    def rebuild(self):
475
481
        """This rebuilds the User Interface.
476
482
        Call this when the widget layout needs to change"""
477
483
        self.uilist = []
478
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
484
        # self.uilist.append(urwid.ListBox(self.clients))
479
485
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
480
486
                                                          clients),
481
 
                                       #header=urwid.Divider(),
 
487
                                       # header=urwid.Divider(),
482
488
                                       header=None,
483
 
                                       footer=
484
 
                                       urwid.Divider(div_char=
485
 
                                                     self.divider)))
 
489
                                       footer=urwid.Divider(
 
490
                                           div_char=self.divider)))
486
491
        if self.log_visible:
487
492
            self.uilist.append(self.logbox)
488
493
        self.topwidget = urwid.Pile(self.uilist)
489
 
    
490
 
    def log_message(self, message):
491
 
        """Log message formatted with timestamp"""
492
 
        timestamp = datetime.datetime.now().isoformat()
493
 
        self.log_message_raw(timestamp + ": " + message)
494
 
    
495
 
    def log_message_raw(self, markup):
496
 
        """Add a log message to the log buffer."""
 
494
 
 
495
    def add_log_line(self, markup):
497
496
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
498
 
        if (self.max_log_length
499
 
            and len(self.log) > self.max_log_length):
500
 
            del self.log[0:len(self.log)-self.max_log_length-1]
501
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
497
        if self.max_log_length:
 
498
            if len(self.log) > self.max_log_length:
 
499
                del self.log[0:(len(self.log) - self.max_log_length)]
 
500
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
502
501
                              coming_from="above")
503
502
        self.refresh()
504
 
    
 
503
 
505
504
    def toggle_log_display(self):
506
505
        """Toggle visibility of the log buffer."""
507
506
        self.log_visible = not self.log_visible
508
507
        self.rebuild()
509
 
        #self.log_message("Log visibility changed to: "
510
 
        #                 + str(self.log_visible))
511
 
    
 
508
        log.debug("Log visibility changed to: %s", self.log_visible)
 
509
 
512
510
    def change_log_display(self):
513
511
        """Change type of log display.
514
512
        Currently, this toggles wrapping of text lines."""
518
516
            self.log_wrap = "clip"
519
517
        for textwidget in self.log:
520
518
            textwidget.set_wrap_mode(self.log_wrap)
521
 
        #self.log_message("Wrap mode: " + self.log_wrap)
522
 
    
523
 
    def find_and_remove_client(self, path, name):
 
519
        log.debug("Wrap mode: %s", self.log_wrap)
 
520
 
 
521
    def find_and_remove_client(self, path, interfaces):
524
522
        """Find a client by its object path and remove it.
525
 
        
526
 
        This is connected to the ClientRemoved signal from the
 
523
 
 
524
        This is connected to the InterfacesRemoved signal from the
527
525
        Mandos server object."""
 
526
        if client_interface not in interfaces:
 
527
            # Not a Mandos client object; ignore
 
528
            return
528
529
        try:
529
530
            client = self.clients_dict[path]
530
531
        except KeyError:
531
532
            # not found?
532
 
            self.log_message("Unknown client {0!r} ({1!r}) removed"
533
 
                             .format(name, path))
 
533
            log.warning("Unknown client %s removed", path)
534
534
            return
535
535
        client.delete()
536
 
    
537
 
    def add_new_client(self, path):
 
536
 
 
537
    def add_new_client(self, path, ifs_and_props):
 
538
        """Find a client by its object path and remove it.
 
539
 
 
540
        This is connected to the InterfacesAdded signal from the
 
541
        Mandos server object.
 
542
        """
 
543
        if client_interface not in ifs_and_props:
 
544
            # Not a Mandos client object; ignore
 
545
            return
538
546
        client_proxy_object = self.bus.get_object(self.busname, path)
539
 
        self.add_client(MandosClientWidget(server_proxy_object
540
 
                                           =self.mandos_serv,
541
 
                                           proxy_object
542
 
                                           =client_proxy_object,
543
 
                                           update_hook
544
 
                                           =self.refresh,
545
 
                                           delete_hook
546
 
                                           =self.remove_client,
547
 
                                           logger
548
 
                                           =self.log_message),
 
547
        self.add_client(MandosClientWidget(
 
548
            server_proxy_object=self.mandos_serv,
 
549
            proxy_object=client_proxy_object,
 
550
            update_hook=self.refresh,
 
551
            delete_hook=self.remove_client,
 
552
            properties=dict(ifs_and_props[client_interface])),
549
553
                        path=path)
550
 
    
 
554
 
551
555
    def add_client(self, client, path=None):
552
556
        self.clients.append(client)
553
557
        if path is None:
555
559
        self.clients_dict[path] = client
556
560
        self.clients.sort(key=lambda c: c.properties["Name"])
557
561
        self.refresh()
558
 
    
 
562
 
559
563
    def remove_client(self, client, path=None):
560
564
        self.clients.remove(client)
561
565
        if path is None:
562
566
            path = client.proxy.object_path
563
567
        del self.clients_dict[path]
564
568
        self.refresh()
565
 
    
 
569
 
566
570
    def refresh(self):
567
571
        """Redraw the screen"""
568
572
        canvas = self.topwidget.render(self.size, focus=True)
569
573
        self.screen.draw_screen(self.size, canvas)
570
 
    
 
574
 
571
575
    def run(self):
572
576
        """Start the main loop and exit when it's done."""
 
577
        log.addHandler(self.loghandler)
 
578
        self.orig_log_propagate = log.propagate
 
579
        log.propagate = False
 
580
        self.orig_log_level = log.level
 
581
        log.setLevel("INFO")
573
582
        self.bus = dbus.SystemBus()
574
583
        mandos_dbus_objc = self.bus.get_object(
575
584
            self.busname, "/", follow_name_owner_changes=True)
576
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
577
 
                                          dbus_interface
578
 
                                          = server_interface)
 
585
        self.mandos_serv = dbus.Interface(
 
586
            mandos_dbus_objc, dbus_interface=server_interface)
579
587
        try:
580
588
            mandos_clients = (self.mandos_serv
581
589
                              .GetAllClientsWithProperties())
582
590
            if not mandos_clients:
583
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
591
                log.warning("Note: Server has no clients.")
584
592
        except dbus.exceptions.DBusException:
585
 
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
593
            log.warning("Note: No Mandos server running.")
586
594
            mandos_clients = dbus.Dictionary()
587
 
        
 
595
 
588
596
        (self.mandos_serv
589
 
         .connect_to_signal("ClientRemoved",
 
597
         .connect_to_signal("InterfacesRemoved",
590
598
                            self.find_and_remove_client,
591
 
                            dbus_interface=server_interface,
 
599
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
592
600
                            byte_arrays=True))
593
601
        (self.mandos_serv
594
 
         .connect_to_signal("ClientAdded",
 
602
         .connect_to_signal("InterfacesAdded",
595
603
                            self.add_new_client,
596
 
                            dbus_interface=server_interface,
 
604
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
597
605
                            byte_arrays=True))
598
606
        (self.mandos_serv
599
607
         .connect_to_signal("ClientNotFound",
603
611
        for path, client in mandos_clients.items():
604
612
            client_proxy_object = self.bus.get_object(self.busname,
605
613
                                                      path)
606
 
            self.add_client(MandosClientWidget(server_proxy_object
607
 
                                               =self.mandos_serv,
608
 
                                               proxy_object
609
 
                                               =client_proxy_object,
610
 
                                               properties=client,
611
 
                                               update_hook
612
 
                                               =self.refresh,
613
 
                                               delete_hook
614
 
                                               =self.remove_client,
615
 
                                               logger
616
 
                                               =self.log_message),
 
614
            self.add_client(MandosClientWidget(
 
615
                server_proxy_object=self.mandos_serv,
 
616
                proxy_object=client_proxy_object,
 
617
                properties=client,
 
618
                update_hook=self.refresh,
 
619
                delete_hook=self.remove_client),
617
620
                            path=path)
618
 
        
 
621
 
619
622
        self.refresh()
620
 
        self._input_callback_tag = (gobject.io_add_watch
621
 
                                    (sys.stdin.fileno(),
622
 
                                     gobject.IO_IN,
623
 
                                     self.process_input))
 
623
        self._input_callback_tag = (
 
624
            GLib.io_add_watch(
 
625
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
626
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
627
                glib_safely(self.process_input)))
624
628
        self.main_loop.run()
625
629
        # Main loop has finished, we should close everything now
626
 
        gobject.source_remove(self._input_callback_tag)
627
 
        self.screen.stop()
628
 
    
 
630
        GLib.source_remove(self._input_callback_tag)
 
631
        with warnings.catch_warnings():
 
632
            warnings.simplefilter("ignore", BytesWarning)
 
633
            self.screen.stop()
 
634
 
629
635
    def stop(self):
630
636
        self.main_loop.quit()
631
 
    
 
637
        log.removeHandler(self.loghandler)
 
638
        log.propagate = self.orig_log_propagate
 
639
 
632
640
    def process_input(self, source, condition):
633
641
        keys = self.screen.get_input()
634
 
        translations = { "ctrl n": "down",      # Emacs
635
 
                         "ctrl p": "up",        # Emacs
636
 
                         "ctrl v": "page down", # Emacs
637
 
                         "meta v": "page up",   # Emacs
638
 
                         " ": "page down",      # less
639
 
                         "f": "page down",      # less
640
 
                         "b": "page up",        # less
641
 
                         "j": "down",           # vi
642
 
                         "k": "up",             # vi
643
 
                         }
 
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
                        }
644
652
        for key in keys:
645
653
            try:
646
654
                key = translations[key]
647
655
            except KeyError:    # :-)
648
656
                pass
649
 
            
 
657
 
650
658
            if key == "q" or key == "Q":
651
659
                self.stop()
652
660
                break
653
661
            elif key == "window resize":
654
662
                self.size = self.screen.get_cols_rows()
655
663
                self.refresh()
656
 
            elif key == "\f":  # Ctrl-L
 
664
            elif key == "ctrl l":
 
665
                self.screen.clear()
657
666
                self.refresh()
658
667
            elif key == "l" or key == "D":
659
668
                self.toggle_log_display()
665
674
                if not self.log_visible:
666
675
                    self.log_visible = True
667
676
                    self.rebuild()
668
 
                self.log_message_raw(("bold",
669
 
                                      "  ".
670
 
                                      join(("q: Quit",
671
 
                                            "?: Help",
672
 
                                            "l: Log window toggle",
673
 
                                            "TAB: Switch window",
674
 
                                            "w: Wrap (log)"))))
675
 
                self.log_message_raw(("bold",
676
 
                                      "  "
677
 
                                      .join(("Clients:",
678
 
                                             "+: Enable",
679
 
                                             "-: Disable",
680
 
                                             "R: Remove",
681
 
                                             "s: Start new checker",
682
 
                                             "S: Stop checker",
683
 
                                             "C: Checker OK",
684
 
                                             "a: Approve",
685
 
                                             "d: Deny"))))
 
677
                self.add_log_line(("bold",
 
678
                                   "  ".join(("q: Quit",
 
679
                                              "?: Help",
 
680
                                              "l: Log window toggle",
 
681
                                              "TAB: Switch window",
 
682
                                              "w: Wrap (log lines)",
 
683
                                              "v: Toggle verbose log",
 
684
                                   ))))
 
685
                self.add_log_line(("bold",
 
686
                                   "  ".join(("Clients:",
 
687
                                              "+: Enable",
 
688
                                              "-: Disable",
 
689
                                              "R: Remove",
 
690
                                              "s: Start new checker",
 
691
                                              "S: Stop checker",
 
692
                                              "C: Checker OK",
 
693
                                              "a: Approve",
 
694
                                              "d: Deny",
 
695
                                   ))))
686
696
                self.refresh()
687
697
            elif key == "tab":
688
698
                if self.topwidget.get_focus() is self.logbox:
690
700
                else:
691
701
                    self.topwidget.set_focus(self.logbox)
692
702
                self.refresh()
693
 
            #elif (key == "end" or key == "meta >" or key == "G"
694
 
            #      or key == ">"):
695
 
            #    pass            # xxx end-of-buffer
696
 
            #elif (key == "home" or key == "meta <" or key == "g"
697
 
            #      or key == "<"):
698
 
            #    pass            # xxx beginning-of-buffer
699
 
            #elif key == "ctrl e" or key == "$":
700
 
            #    pass            # xxx move-end-of-line
701
 
            #elif key == "ctrl a" or key == "^":
702
 
            #    pass            # xxx move-beginning-of-line
703
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
704
 
            #    pass            # xxx left
705
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
706
 
            #    pass            # xxx right
707
 
            #elif key == "a":
708
 
            #    pass            # scroll up log
709
 
            #elif key == "z":
710
 
            #    pass            # scroll down log
 
703
            elif key == "v":
 
704
                if log.level < logging.INFO:
 
705
                    log.setLevel(logging.INFO)
 
706
                    log.info("Verbose mode: Off")
 
707
                else:
 
708
                    log.setLevel(logging.NOTSET)
 
709
                    log.info("Verbose mode: On")
 
710
            # elif (key == "end" or key == "meta >" or key == "G"
 
711
            #       or key == ">"):
 
712
            #     pass            # xxx end-of-buffer
 
713
            # elif (key == "home" or key == "meta <" or key == "g"
 
714
            #       or key == "<"):
 
715
            #     pass            # xxx beginning-of-buffer
 
716
            # elif key == "ctrl e" or key == "$":
 
717
            #     pass            # xxx move-end-of-line
 
718
            # elif key == "ctrl a" or key == "^":
 
719
            #     pass            # xxx move-beginning-of-line
 
720
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
721
            #     pass            # xxx left
 
722
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
723
            #     pass            # xxx right
 
724
            # elif key == "a":
 
725
            #     pass            # scroll up log
 
726
            # elif key == "z":
 
727
            #     pass            # scroll down log
711
728
            elif self.topwidget.selectable():
712
729
                self.topwidget.keypress(self.size, key)
713
730
                self.refresh()
714
731
        return True
715
732
 
 
733
 
 
734
class UILogHandler(logging.Handler):
 
735
    def __init__(self, ui, *args, **kwargs):
 
736
        self.ui = ui
 
737
        super(UILogHandler, self).__init__(*args, **kwargs)
 
738
        self.setFormatter(
 
739
            logging.Formatter("%(asctime)s: %(message)s"))
 
740
    def emit(self, record):
 
741
        msg = self.format(record)
 
742
        if record.levelno > logging.INFO:
 
743
            msg = ("bold", msg)
 
744
        self.ui.add_log_line(msg)
 
745
 
 
746
 
716
747
ui = UserInterface()
717
748
try:
718
749
    ui.run()
719
750
except KeyboardInterrupt:
720
 
    ui.screen.stop()
721
 
except Exception as e:
722
 
    ui.log_message(str(e))
723
 
    ui.screen.stop()
 
751
    with warnings.catch_warnings():
 
752
        warnings.filterwarnings("ignore", "", BytesWarning)
 
753
        ui.screen.stop()
 
754
except Exception:
 
755
    with warnings.catch_warnings():
 
756
        warnings.filterwarnings("ignore", "", BytesWarning)
 
757
        ui.screen.stop()
724
758
    raise