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  • Committer: Teddy Hogeborn
  • Date: 2012-05-06 17:23:08 UTC
  • Revision ID: teddy@recompile.se-20120506172308-xw7368koksmjmnv3
* mandos (Client.start_checker): Reworded comment.
 (MandosServer.handle_ipc): Removed dead code.

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#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
#
 
3
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
 
#
6
 
# Copyright © 2009-2016 Teddy Hogeborn
7
 
# Copyright © 2009-2016 Björn Påhlsson
8
 
#
 
5
 
6
# Copyright © 2009-2012 Teddy Hogeborn
 
7
# Copyright © 2009-2012 Björn Påhlsson
 
8
9
9
# This program is free software: you can redistribute it and/or modify
10
10
# it under the terms of the GNU General Public License as published by
11
11
# the Free Software Foundation, either version 3 of the License, or
15
15
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
16
16
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
17
#     GNU General Public License for more details.
18
 
#
 
18
19
19
# You should have received a copy of the GNU General Public License
20
20
# along with this program.  If not, see
21
21
# <http://www.gnu.org/licenses/>.
22
 
#
 
22
23
23
# Contact the authors at <mandos@recompile.se>.
24
 
#
 
24
25
25
 
26
26
from __future__ import (division, absolute_import, print_function,
27
27
                        unicode_literals)
28
 
try:
29
 
    from future_builtins import *
30
 
except ImportError:
31
 
    pass
32
28
 
33
29
import sys
34
30
import os
 
31
import signal
35
32
 
36
33
import datetime
37
34
 
39
36
import urwid
40
37
 
41
38
from dbus.mainloop.glib import DBusGMainLoop
42
 
from gi.repository import GLib
 
39
import gobject
43
40
 
44
41
import dbus
45
42
 
 
43
import UserList
 
44
 
46
45
import locale
47
46
 
 
47
locale.setlocale(locale.LC_ALL, '')
 
48
 
48
49
import logging
49
 
 
50
 
if sys.version_info.major == 2:
51
 
    str = unicode
52
 
 
53
 
locale.setlocale(locale.LC_ALL, '')
54
 
 
55
50
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
56
51
 
57
52
# Some useful constants
58
53
domain = 'se.recompile'
59
54
server_interface = domain + '.Mandos'
60
55
client_interface = domain + '.Mandos.Client'
61
 
version = "1.7.14"
62
 
 
63
 
try:
64
 
    dbus.OBJECT_MANAGER_IFACE
65
 
except AttributeError:
66
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
67
 
 
 
56
version = "1.5.3"
 
57
 
 
58
# Always run in monochrome mode
 
59
urwid.curses_display.curses.has_colors = lambda : False
 
60
 
 
61
# Urwid doesn't support blinking, but we want it.  Since we have no
 
62
# use for underline on its own, we make underline also always blink.
 
63
urwid.curses_display.curses.A_UNDERLINE |= (
 
64
    urwid.curses_display.curses.A_BLINK)
68
65
 
69
66
def isoformat_to_datetime(iso):
70
67
    "Parse an ISO 8601 date string to a datetime.datetime()"
79
76
                             int(day),
80
77
                             int(hour),
81
78
                             int(minute),
82
 
                             int(second),            # Whole seconds
83
 
                             int(fraction*1000000))  # Microseconds
84
 
 
 
79
                             int(second),           # Whole seconds
 
80
                             int(fraction*1000000)) # Microseconds
85
81
 
86
82
class MandosClientPropertyCache(object):
87
83
    """This wraps a Mandos Client D-Bus proxy object, caches the
88
84
    properties and calls a hook function when any of them are
89
85
    changed.
90
86
    """
91
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
92
 
        self.proxy = proxy_object  # Mandos Client proxy object
93
 
        self.properties = dict() if properties is None else properties
 
87
    def __init__(self, proxy_object=None, *args, **kwargs):
 
88
        self.proxy = proxy_object # Mandos Client proxy object
 
89
        
 
90
        self.properties = dict()
94
91
        self.property_changed_match = (
95
 
            self.proxy.connect_to_signal("PropertiesChanged",
96
 
                                         self.properties_changed,
97
 
                                         dbus.PROPERTIES_IFACE,
 
92
            self.proxy.connect_to_signal("PropertyChanged",
 
93
                                         self.property_changed,
 
94
                                         client_interface,
98
95
                                         byte_arrays=True))
99
 
 
100
 
        if properties is None:
101
 
            self.properties.update(self.proxy.GetAll(
102
 
                client_interface,
103
 
                dbus_interface=dbus.PROPERTIES_IFACE))
104
 
 
105
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
106
 
 
107
 
    def properties_changed(self, interface, properties, invalidated):
108
 
        """This is called whenever we get a PropertiesChanged signal
109
 
        It updates the changed properties in the "properties" dict.
 
96
        
 
97
        self.properties.update(
 
98
            self.proxy.GetAll(client_interface,
 
99
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
100
 
 
101
        #XXX This breaks good super behaviour
 
102
#        super(MandosClientPropertyCache, self).__init__(
 
103
#            *args, **kwargs)
 
104
    
 
105
    def property_changed(self, property=None, value=None):
 
106
        """This is called whenever we get a PropertyChanged signal
 
107
        It updates the changed property in the "properties" dict.
110
108
        """
111
109
        # Update properties dict with new value
112
 
        if interface == client_interface:
113
 
            self.properties.update(properties)
114
 
 
115
 
    def delete(self):
 
110
        self.properties[property] = value
 
111
    
 
112
    def delete(self, *args, **kwargs):
116
113
        self.property_changed_match.remove()
 
114
        super(MandosClientPropertyCache, self).__init__(
 
115
            *args, **kwargs)
117
116
 
118
117
 
119
118
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
120
119
    """A Mandos Client which is visible on the screen.
121
120
    """
122
 
 
 
121
    
123
122
    def __init__(self, server_proxy_object=None, update_hook=None,
124
 
                 delete_hook=None, logger=None, **kwargs):
 
123
                 delete_hook=None, logger=None, *args, **kwargs):
125
124
        # Called on update
126
125
        self.update_hook = update_hook
127
126
        # Called on delete
130
129
        self.server_proxy_object = server_proxy_object
131
130
        # Logger
132
131
        self.logger = logger
133
 
 
 
132
        
134
133
        self._update_timer_callback_tag = None
135
 
 
 
134
        self._update_timer_callback_lock = 0
 
135
        
136
136
        # The widget shown normally
137
137
        self._text_widget = urwid.Text("")
138
138
        # The widget shown when we have focus
139
139
        self._focus_text_widget = urwid.Text("")
140
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
140
        super(MandosClientWidget, self).__init__(
 
141
            update_hook=update_hook, delete_hook=delete_hook,
 
142
            *args, **kwargs)
141
143
        self.update()
142
144
        self.opened = False
143
 
 
 
145
        
 
146
        last_checked_ok = isoformat_to_datetime(self.properties
 
147
                                                ["LastCheckedOK"])
 
148
        
 
149
        if self.properties ["LastCheckerStatus"] != 0:
 
150
            self.using_timer(True)
 
151
        
 
152
        if self.need_approval:
 
153
            self.using_timer(True)
 
154
        
144
155
        self.match_objects = (
145
156
            self.proxy.connect_to_signal("CheckerCompleted",
146
157
                                         self.checker_completed,
162
173
                                         self.rejected,
163
174
                                         client_interface,
164
175
                                         byte_arrays=True))
165
 
        self.logger('Created client {}'
166
 
                    .format(self.properties["Name"]), level=0)
167
 
 
 
176
        #self.logger('Created client {0}'
 
177
        #            .format(self.properties["Name"]))
 
178
    
 
179
    def property_changed(self, property=None, value=None):
 
180
        super(self, MandosClientWidget).property_changed(property,
 
181
                                                         value)
 
182
        if property == "ApprovalPending":
 
183
            using_timer(bool(value))
 
184
        if property == "LastCheckerStatus":
 
185
            using_timer(value != 0)
 
186
            #self.logger('Checker for client {0} (command "{1}") was '
 
187
            #            ' successful'.format(self.properties["Name"],
 
188
            #                                 command))
 
189
    
168
190
    def using_timer(self, flag):
169
191
        """Call this method with True or False when timer should be
170
192
        activated or deactivated.
171
193
        """
172
 
        if flag and self._update_timer_callback_tag is None:
 
194
        old = self._update_timer_callback_lock
 
195
        if flag:
 
196
            self._update_timer_callback_lock += 1
 
197
        else:
 
198
            self._update_timer_callback_lock -= 1
 
199
        if old == 0 and self._update_timer_callback_lock:
173
200
            # Will update the shown timer value every second
174
 
            self._update_timer_callback_tag = (GLib.timeout_add
 
201
            self._update_timer_callback_tag = (gobject.timeout_add
175
202
                                               (1000,
176
203
                                                self.update_timer))
177
 
        elif not (flag or self._update_timer_callback_tag is None):
178
 
            GLib.source_remove(self._update_timer_callback_tag)
 
204
        elif old and self._update_timer_callback_lock == 0:
 
205
            gobject.source_remove(self._update_timer_callback_tag)
179
206
            self._update_timer_callback_tag = None
180
 
 
 
207
    
181
208
    def checker_completed(self, exitstatus, condition, command):
182
209
        if exitstatus == 0:
183
 
            self.logger('Checker for client {} (command "{}")'
184
 
                        ' succeeded'.format(self.properties["Name"],
185
 
                                            command), level=0)
186
210
            self.update()
187
211
            return
188
212
        # Checker failed
189
213
        if os.WIFEXITED(condition):
190
 
            self.logger('Checker for client {} (command "{}") failed'
191
 
                        ' with exit code {}'
 
214
            self.logger('Checker for client {0} (command "{1}")'
 
215
                        ' failed with exit code {2}'
192
216
                        .format(self.properties["Name"], command,
193
217
                                os.WEXITSTATUS(condition)))
194
218
        elif os.WIFSIGNALED(condition):
195
 
            self.logger('Checker for client {} (command "{}") was'
196
 
                        ' killed by signal {}'
 
219
            self.logger('Checker for client {0} (command "{1}") was'
 
220
                        ' killed by signal {2}'
197
221
                        .format(self.properties["Name"], command,
198
222
                                os.WTERMSIG(condition)))
 
223
        elif os.WCOREDUMP(condition):
 
224
            self.logger('Checker for client {0} (command "{1}")'
 
225
                        ' dumped core'
 
226
                        .format(self.properties["Name"], command))
 
227
        else:
 
228
            self.logger('Checker for client {0} completed'
 
229
                        ' mysteriously'
 
230
                        .format(self.properties["Name"]))
199
231
        self.update()
200
 
 
 
232
    
201
233
    def checker_started(self, command):
202
 
        """Server signals that a checker started."""
203
 
        self.logger('Client {} started checker "{}"'
204
 
                    .format(self.properties["Name"],
205
 
                            command), level=0)
206
 
 
 
234
        """Server signals that a checker started. This could be useful
 
235
           to log in the future. """
 
236
        #self.logger('Client {0} started checker "{1}"'
 
237
        #            .format(self.properties["Name"],
 
238
        #                    unicode(command)))
 
239
        pass
 
240
    
207
241
    def got_secret(self):
208
 
        self.logger('Client {} received its secret'
 
242
        self.logger('Client {0} received its secret'
209
243
                    .format(self.properties["Name"]))
210
 
 
 
244
    
211
245
    def need_approval(self, timeout, default):
212
246
        if not default:
213
 
            message = 'Client {} needs approval within {} seconds'
 
247
            message = 'Client {0} needs approval within {1} seconds'
214
248
        else:
215
 
            message = 'Client {} will get its secret in {} seconds'
 
249
            message = 'Client {0} will get its secret in {1} seconds'
216
250
        self.logger(message.format(self.properties["Name"],
217
251
                                   timeout/1000))
218
 
 
 
252
        self.using_timer(True)
 
253
    
219
254
    def rejected(self, reason):
220
 
        self.logger('Client {} was rejected; reason: {}'
 
255
        self.logger('Client {0} was rejected; reason: {1}'
221
256
                    .format(self.properties["Name"], reason))
222
 
 
 
257
    
223
258
    def selectable(self):
224
259
        """Make this a "selectable" widget.
225
260
        This overrides the method from urwid.FlowWidget."""
226
261
        return True
227
 
 
 
262
    
228
263
    def rows(self, maxcolrow, focus=False):
229
264
        """How many rows this widget will occupy might depend on
230
265
        whether we have focus or not.
231
266
        This overrides the method from urwid.FlowWidget"""
232
267
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
233
 
 
 
268
    
234
269
    def current_widget(self, focus=False):
235
270
        if focus or self.opened:
236
271
            return self._focus_widget
237
272
        return self._widget
238
 
 
 
273
    
239
274
    def update(self):
240
275
        "Called when what is visible on the screen should be updated."
241
276
        # How to add standout mode to a style
242
 
        with_standout = {"normal": "standout",
243
 
                         "bold": "bold-standout",
244
 
                         "underline-blink":
245
 
                         "underline-blink-standout",
246
 
                         "bold-underline-blink":
247
 
                         "bold-underline-blink-standout",
248
 
                         }
 
277
        with_standout = { "normal": "standout",
 
278
                          "bold": "bold-standout",
 
279
                          "underline-blink":
 
280
                              "underline-blink-standout",
 
281
                          "bold-underline-blink":
 
282
                              "bold-underline-blink-standout",
 
283
                          }
249
284
 
250
285
        # Rebuild focus and non-focus widgets using current properties
251
286
 
253
288
        base = '{name}: '.format(name=self.properties["Name"])
254
289
        if not self.properties["Enabled"]:
255
290
            message = "DISABLED"
256
 
            self.using_timer(False)
257
291
        elif self.properties["ApprovalPending"]:
258
 
            timeout = datetime.timedelta(
259
 
                milliseconds=self.properties["ApprovalDelay"])
 
292
            timeout = datetime.timedelta(milliseconds
 
293
                                         = self.properties
 
294
                                         ["ApprovalDelay"])
260
295
            last_approval_request = isoformat_to_datetime(
261
296
                self.properties["LastApprovalRequest"])
262
297
            if last_approval_request is not None:
263
 
                timer = max(timeout - (datetime.datetime.utcnow()
264
 
                                       - last_approval_request),
265
 
                            datetime.timedelta())
 
298
                timer = timeout - (datetime.datetime.utcnow()
 
299
                                   - last_approval_request)
266
300
            else:
267
301
                timer = datetime.timedelta()
268
302
            if self.properties["ApprovedByDefault"]:
269
 
                message = "Approval in {}. (d)eny?"
 
303
                message = "Approval in {0}. (d)eny?"
270
304
            else:
271
 
                message = "Denial in {}. (a)pprove?"
272
 
            message = message.format(str(timer).rsplit(".", 1)[0])
273
 
            self.using_timer(True)
 
305
                message = "Denial in {0}. (a)pprove?"
 
306
            message = message.format(unicode(timer).rsplit(".", 1)[0])
274
307
        elif self.properties["LastCheckerStatus"] != 0:
275
308
            # When checker has failed, show timer until client expires
276
309
            expires = self.properties["Expires"]
279
312
            else:
280
313
                expires = (datetime.datetime.strptime
281
314
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
282
 
                timer = max(expires - datetime.datetime.utcnow(),
283
 
                            datetime.timedelta())
 
315
                timer = expires - datetime.datetime.utcnow()
284
316
            message = ('A checker has failed! Time until client'
285
 
                       ' gets disabled: {}'
286
 
                       .format(str(timer).rsplit(".", 1)[0]))
287
 
            self.using_timer(True)
 
317
                       ' gets disabled: {0}'
 
318
                       .format(unicode(timer).rsplit(".", 1)[0]))
288
319
        else:
289
320
            message = "enabled"
290
 
            self.using_timer(False)
291
 
        self._text = "{}{}".format(base, message)
292
 
 
 
321
        self._text = "{0}{1}".format(base, message)
 
322
            
293
323
        if not urwid.supports_unicode():
294
324
            self._text = self._text.encode("ascii", "replace")
295
325
        textlist = [("normal", self._text)]
305
335
        # Run update hook, if any
306
336
        if self.update_hook is not None:
307
337
            self.update_hook()
308
 
 
 
338
    
309
339
    def update_timer(self):
310
 
        """called by GLib. Will indefinitely loop until
311
 
        GLib.source_remove() on tag is called
312
 
        """
 
340
        """called by gobject. Will indefinitely loop until
 
341
        gobject.source_remove() on tag is called"""
313
342
        self.update()
314
343
        return True             # Keep calling this
315
 
 
316
 
    def delete(self, **kwargs):
 
344
    
 
345
    def delete(self, *args, **kwargs):
317
346
        if self._update_timer_callback_tag is not None:
318
 
            GLib.source_remove(self._update_timer_callback_tag)
 
347
            gobject.source_remove(self._update_timer_callback_tag)
319
348
            self._update_timer_callback_tag = None
320
349
        for match in self.match_objects:
321
350
            match.remove()
322
351
        self.match_objects = ()
323
352
        if self.delete_hook is not None:
324
353
            self.delete_hook(self)
325
 
        return super(MandosClientWidget, self).delete(**kwargs)
326
 
 
 
354
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
355
    
327
356
    def render(self, maxcolrow, focus=False):
328
357
        """Render differently if we have focus.
329
358
        This overrides the method from urwid.FlowWidget"""
330
359
        return self.current_widget(focus).render(maxcolrow,
331
360
                                                 focus=focus)
332
 
 
 
361
    
333
362
    def keypress(self, maxcolrow, key):
334
363
        """Handle keys.
335
364
        This overrides the method from urwid.FlowWidget"""
336
365
        if key == "+":
337
 
            self.proxy.Set(client_interface, "Enabled",
338
 
                           dbus.Boolean(True), ignore_reply=True,
339
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
366
            self.proxy.Enable(dbus_interface = client_interface,
 
367
                              ignore_reply=True)
340
368
        elif key == "-":
341
 
            self.proxy.Set(client_interface, "Enabled", False,
342
 
                           ignore_reply=True,
343
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
369
            self.proxy.Disable(dbus_interface = client_interface,
 
370
                               ignore_reply=True)
344
371
        elif key == "a":
345
372
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
346
 
                               dbus_interface=client_interface,
 
373
                               dbus_interface = client_interface,
347
374
                               ignore_reply=True)
348
375
        elif key == "d":
349
376
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
350
 
                               dbus_interface=client_interface,
 
377
                                  dbus_interface = client_interface,
351
378
                               ignore_reply=True)
352
379
        elif key == "R" or key == "_" or key == "ctrl k":
353
380
            self.server_proxy_object.RemoveClient(self.proxy
354
381
                                                  .object_path,
355
382
                                                  ignore_reply=True)
356
383
        elif key == "s":
357
 
            self.proxy.Set(client_interface, "CheckerRunning",
358
 
                           dbus.Boolean(True), ignore_reply=True,
359
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
384
            self.proxy.StartChecker(dbus_interface = client_interface,
 
385
                                    ignore_reply=True)
360
386
        elif key == "S":
361
 
            self.proxy.Set(client_interface, "CheckerRunning",
362
 
                           dbus.Boolean(False), ignore_reply=True,
363
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
387
            self.proxy.StopChecker(dbus_interface = client_interface,
 
388
                                   ignore_reply=True)
364
389
        elif key == "C":
365
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
390
            self.proxy.CheckedOK(dbus_interface = client_interface,
366
391
                                 ignore_reply=True)
367
392
        # xxx
368
393
#         elif key == "p" or key == "=":
373
398
#             self.open()
374
399
        else:
375
400
            return key
376
 
 
377
 
    def properties_changed(self, interface, properties, invalidated):
378
 
        """Call self.update() if any properties changed.
 
401
    
 
402
    def property_changed(self, property=None, value=None,
 
403
                         *args, **kwargs):
 
404
        """Call self.update() if old value is not new value.
379
405
        This overrides the method from MandosClientPropertyCache"""
380
 
        old_values = {key: self.properties.get(key)
381
 
                      for key in properties.keys()}
382
 
        super(MandosClientWidget, self).properties_changed(
383
 
            interface, properties, invalidated)
384
 
        if any(old_values[key] != self.properties.get(key)
385
 
               for key in old_values):
 
406
        property_name = unicode(property)
 
407
        old_value = self.properties.get(property_name)
 
408
        super(MandosClientWidget, self).property_changed(
 
409
            property=property, value=value, *args, **kwargs)
 
410
        if self.properties.get(property_name) != old_value:
386
411
            self.update()
387
412
 
388
413
 
391
416
    "down" key presses, thus not allowing any containing widgets to
392
417
    use them as an excuse to shift focus away from this widget.
393
418
    """
394
 
    def keypress(self, *args, **kwargs):
395
 
        ret = (super(ConstrainedListBox, self)
396
 
               .keypress(*args, **kwargs))
 
419
    def keypress(self, maxcolrow, key):
 
420
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
397
421
        if ret in ("up", "down"):
398
422
            return
399
423
        return ret
403
427
    """This is the entire user interface - the whole screen
404
428
    with boxes, lists of client widgets, etc.
405
429
    """
406
 
    def __init__(self, max_log_length=1000, log_level=1):
 
430
    def __init__(self, max_log_length=1000):
407
431
        DBusGMainLoop(set_as_default=True)
408
 
 
 
432
        
409
433
        self.screen = urwid.curses_display.Screen()
410
 
 
 
434
        
411
435
        self.screen.register_palette((
412
436
                ("normal",
413
437
                 "default", "default", None),
414
438
                ("bold",
415
 
                 "bold", "default", "bold"),
 
439
                 "default", "default", "bold"),
416
440
                ("underline-blink",
417
 
                 "underline,blink", "default", "underline,blink"),
 
441
                 "default", "default", "underline"),
418
442
                ("standout",
419
 
                 "standout", "default", "standout"),
 
443
                 "default", "default", "standout"),
420
444
                ("bold-underline-blink",
421
 
                 "bold,underline,blink", "default",
422
 
                 "bold,underline,blink"),
 
445
                 "default", "default", ("bold", "underline")),
423
446
                ("bold-standout",
424
 
                 "bold,standout", "default", "bold,standout"),
 
447
                 "default", "default", ("bold", "standout")),
425
448
                ("underline-blink-standout",
426
 
                 "underline,blink,standout", "default",
427
 
                 "underline,blink,standout"),
 
449
                 "default", "default", ("underline", "standout")),
428
450
                ("bold-underline-blink-standout",
429
 
                 "bold,underline,blink,standout", "default",
430
 
                 "bold,underline,blink,standout"),
 
451
                 "default", "default", ("bold", "underline",
 
452
                                          "standout")),
431
453
                ))
432
 
 
 
454
        
433
455
        if urwid.supports_unicode():
434
 
            self.divider = "─"  # \u2500
 
456
            self.divider = "─" # \u2500
 
457
            #self.divider = "━" # \u2501
435
458
        else:
436
 
            self.divider = "_"  # \u005f
437
 
 
 
459
            #self.divider = "-" # \u002d
 
460
            self.divider = "_" # \u005f
 
461
        
438
462
        self.screen.start()
439
 
 
 
463
        
440
464
        self.size = self.screen.get_cols_rows()
441
 
 
 
465
        
442
466
        self.clients = urwid.SimpleListWalker([])
443
467
        self.clients_dict = {}
444
 
 
 
468
        
445
469
        # We will add Text widgets to this list
446
470
        self.log = []
447
471
        self.max_log_length = max_log_length
448
 
 
449
 
        self.log_level = log_level
450
 
 
 
472
        
451
473
        # We keep a reference to the log widget so we can remove it
452
474
        # from the ListWalker without it getting destroyed
453
475
        self.logbox = ConstrainedListBox(self.log)
454
 
 
 
476
        
455
477
        # This keeps track of whether self.uilist currently has
456
478
        # self.logbox in it or not
457
479
        self.log_visible = True
458
480
        self.log_wrap = "any"
459
 
 
 
481
        
460
482
        self.rebuild()
461
483
        self.log_message_raw(("bold",
462
484
                              "Mandos Monitor version " + version))
463
485
        self.log_message_raw(("bold",
464
486
                              "q: Quit  ?: Help"))
465
 
 
 
487
        
466
488
        self.busname = domain + '.Mandos'
467
 
        self.main_loop = GLib.MainLoop()
468
 
 
 
489
        self.main_loop = gobject.MainLoop()
 
490
    
469
491
    def client_not_found(self, fingerprint, address):
470
 
        self.log_message("Client with address {} and fingerprint {}"
471
 
                         " could not be found"
 
492
        self.log_message("Client with address {0} and fingerprint"
 
493
                         " {1} could not be found"
472
494
                         .format(address, fingerprint))
473
 
 
 
495
    
474
496
    def rebuild(self):
475
497
        """This rebuilds the User Interface.
476
498
        Call this when the widget layout needs to change"""
477
499
        self.uilist = []
478
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
500
        #self.uilist.append(urwid.ListBox(self.clients))
479
501
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
480
502
                                                          clients),
481
 
                                       # header=urwid.Divider(),
 
503
                                       #header=urwid.Divider(),
482
504
                                       header=None,
483
 
                                       footer=urwid.Divider(
484
 
                                           div_char=self.divider)))
 
505
                                       footer=
 
506
                                       urwid.Divider(div_char=
 
507
                                                     self.divider)))
485
508
        if self.log_visible:
486
509
            self.uilist.append(self.logbox)
487
510
        self.topwidget = urwid.Pile(self.uilist)
488
 
 
489
 
    def log_message(self, message, level=1):
490
 
        """Log message formatted with timestamp"""
491
 
        if level < self.log_level:
492
 
            return
 
511
    
 
512
    def log_message(self, message):
493
513
        timestamp = datetime.datetime.now().isoformat()
494
 
        self.log_message_raw("{}: {}".format(timestamp, message),
495
 
                             level=level)
496
 
 
497
 
    def log_message_raw(self, markup, level=1):
 
514
        self.log_message_raw(timestamp + ": " + message)
 
515
    
 
516
    def log_message_raw(self, markup):
498
517
        """Add a log message to the log buffer."""
499
 
        if level < self.log_level:
500
 
            return
501
518
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
502
 
        if self.max_log_length:
503
 
            if len(self.log) > self.max_log_length:
504
 
                del self.log[0:len(self.log)-self.max_log_length-1]
 
519
        if (self.max_log_length
 
520
            and len(self.log) > self.max_log_length):
 
521
            del self.log[0:len(self.log)-self.max_log_length-1]
505
522
        self.logbox.set_focus(len(self.logbox.body.contents),
506
523
                              coming_from="above")
507
524
        self.refresh()
508
 
 
 
525
    
509
526
    def toggle_log_display(self):
510
527
        """Toggle visibility of the log buffer."""
511
528
        self.log_visible = not self.log_visible
512
529
        self.rebuild()
513
 
        self.log_message("Log visibility changed to: {}"
514
 
                         .format(self.log_visible), level=0)
515
 
 
 
530
        #self.log_message("Log visibility changed to: "
 
531
        #                 + unicode(self.log_visible))
 
532
    
516
533
    def change_log_display(self):
517
534
        """Change type of log display.
518
535
        Currently, this toggles wrapping of text lines."""
522
539
            self.log_wrap = "clip"
523
540
        for textwidget in self.log:
524
541
            textwidget.set_wrap_mode(self.log_wrap)
525
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
526
 
                         level=0)
527
 
 
528
 
    def find_and_remove_client(self, path, interfaces):
 
542
        #self.log_message("Wrap mode: " + self.log_wrap)
 
543
    
 
544
    def find_and_remove_client(self, path, name):
529
545
        """Find a client by its object path and remove it.
530
 
 
531
 
        This is connected to the InterfacesRemoved signal from the
 
546
        
 
547
        This is connected to the ClientRemoved signal from the
532
548
        Mandos server object."""
533
 
        if client_interface not in interfaces:
534
 
            # Not a Mandos client object; ignore
535
 
            return
536
549
        try:
537
550
            client = self.clients_dict[path]
538
551
        except KeyError:
539
552
            # not found?
540
 
            self.log_message("Unknown client {!r} removed"
541
 
                             .format(path))
 
553
            self.log_message("Unknown client {0!r} ({1!r}) removed"
 
554
                             .format(name, path))
542
555
            return
543
556
        client.delete()
544
 
 
545
 
    def add_new_client(self, path, ifs_and_props):
546
 
        """Find a client by its object path and remove it.
547
 
 
548
 
        This is connected to the InterfacesAdded signal from the
549
 
        Mandos server object.
550
 
        """
551
 
        if client_interface not in ifs_and_props:
552
 
            # Not a Mandos client object; ignore
553
 
            return
 
557
    
 
558
    def add_new_client(self, path):
554
559
        client_proxy_object = self.bus.get_object(self.busname, path)
555
 
        self.add_client(MandosClientWidget(
556
 
            server_proxy_object=self.mandos_serv,
557
 
            proxy_object=client_proxy_object,
558
 
            update_hook=self.refresh,
559
 
            delete_hook=self.remove_client,
560
 
            logger=self.log_message,
561
 
            properties=dict(ifs_and_props[client_interface])),
 
560
        self.add_client(MandosClientWidget(server_proxy_object
 
561
                                           =self.mandos_serv,
 
562
                                           proxy_object
 
563
                                           =client_proxy_object,
 
564
                                           update_hook
 
565
                                           =self.refresh,
 
566
                                           delete_hook
 
567
                                           =self.remove_client,
 
568
                                           logger
 
569
                                           =self.log_message),
562
570
                        path=path)
563
 
 
 
571
    
564
572
    def add_client(self, client, path=None):
565
573
        self.clients.append(client)
566
574
        if path is None:
567
575
            path = client.proxy.object_path
568
576
        self.clients_dict[path] = client
569
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
577
        self.clients.sort(None, lambda c: c.properties["Name"])
570
578
        self.refresh()
571
 
 
 
579
    
572
580
    def remove_client(self, client, path=None):
573
581
        self.clients.remove(client)
574
582
        if path is None:
575
583
            path = client.proxy.object_path
576
584
        del self.clients_dict[path]
 
585
        if not self.clients_dict:
 
586
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
587
            # is completely emptied, we need to recreate it.
 
588
            self.clients = urwid.SimpleListWalker([])
 
589
            self.rebuild()
577
590
        self.refresh()
578
 
 
 
591
    
579
592
    def refresh(self):
580
593
        """Redraw the screen"""
581
594
        canvas = self.topwidget.render(self.size, focus=True)
582
595
        self.screen.draw_screen(self.size, canvas)
583
 
 
 
596
    
584
597
    def run(self):
585
598
        """Start the main loop and exit when it's done."""
586
599
        self.bus = dbus.SystemBus()
587
600
        mandos_dbus_objc = self.bus.get_object(
588
601
            self.busname, "/", follow_name_owner_changes=True)
589
 
        self.mandos_serv = dbus.Interface(
590
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
602
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
603
                                          dbus_interface
 
604
                                          = server_interface)
591
605
        try:
592
606
            mandos_clients = (self.mandos_serv
593
607
                              .GetAllClientsWithProperties())
594
 
            if not mandos_clients:
595
 
                self.log_message_raw(("bold",
596
 
                                      "Note: Server has no clients."))
597
608
        except dbus.exceptions.DBusException:
598
 
            self.log_message_raw(("bold",
599
 
                                  "Note: No Mandos server running."))
600
609
            mandos_clients = dbus.Dictionary()
601
 
 
 
610
        
602
611
        (self.mandos_serv
603
 
         .connect_to_signal("InterfacesRemoved",
 
612
         .connect_to_signal("ClientRemoved",
604
613
                            self.find_and_remove_client,
605
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
614
                            dbus_interface=server_interface,
606
615
                            byte_arrays=True))
607
616
        (self.mandos_serv
608
 
         .connect_to_signal("InterfacesAdded",
 
617
         .connect_to_signal("ClientAdded",
609
618
                            self.add_new_client,
610
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
619
                            dbus_interface=server_interface,
611
620
                            byte_arrays=True))
612
621
        (self.mandos_serv
613
622
         .connect_to_signal("ClientNotFound",
614
623
                            self.client_not_found,
615
624
                            dbus_interface=server_interface,
616
625
                            byte_arrays=True))
617
 
        for path, client in mandos_clients.items():
 
626
        for path, client in mandos_clients.iteritems():
618
627
            client_proxy_object = self.bus.get_object(self.busname,
619
628
                                                      path)
620
 
            self.add_client(MandosClientWidget(
621
 
                server_proxy_object=self.mandos_serv,
622
 
                proxy_object=client_proxy_object,
623
 
                properties=client,
624
 
                update_hook=self.refresh,
625
 
                delete_hook=self.remove_client,
626
 
                logger=self.log_message),
 
629
            self.add_client(MandosClientWidget(server_proxy_object
 
630
                                               =self.mandos_serv,
 
631
                                               proxy_object
 
632
                                               =client_proxy_object,
 
633
                                               properties=client,
 
634
                                               update_hook
 
635
                                               =self.refresh,
 
636
                                               delete_hook
 
637
                                               =self.remove_client,
 
638
                                               logger
 
639
                                               =self.log_message),
627
640
                            path=path)
628
641
 
629
642
        self.refresh()
630
 
        self._input_callback_tag = (GLib.io_add_watch
 
643
        self._input_callback_tag = (gobject.io_add_watch
631
644
                                    (sys.stdin.fileno(),
632
 
                                     GLib.IO_IN,
 
645
                                     gobject.IO_IN,
633
646
                                     self.process_input))
634
647
        self.main_loop.run()
635
648
        # Main loop has finished, we should close everything now
636
 
        GLib.source_remove(self._input_callback_tag)
 
649
        gobject.source_remove(self._input_callback_tag)
637
650
        self.screen.stop()
638
 
 
 
651
    
639
652
    def stop(self):
640
653
        self.main_loop.quit()
641
 
 
 
654
    
642
655
    def process_input(self, source, condition):
643
656
        keys = self.screen.get_input()
644
 
        translations = {"ctrl n": "down",       # Emacs
645
 
                        "ctrl p": "up",         # Emacs
646
 
                        "ctrl v": "page down",  # Emacs
647
 
                        "meta v": "page up",    # Emacs
648
 
                        " ": "page down",       # less
649
 
                        "f": "page down",       # less
650
 
                        "b": "page up",         # less
651
 
                        "j": "down",            # vi
652
 
                        "k": "up",              # vi
653
 
                        }
 
657
        translations = { "ctrl n": "down",      # Emacs
 
658
                         "ctrl p": "up",        # Emacs
 
659
                         "ctrl v": "page down", # Emacs
 
660
                         "meta v": "page up",   # Emacs
 
661
                         " ": "page down",      # less
 
662
                         "f": "page down",      # less
 
663
                         "b": "page up",        # less
 
664
                         "j": "down",           # vi
 
665
                         "k": "up",             # vi
 
666
                         }
654
667
        for key in keys:
655
668
            try:
656
669
                key = translations[key]
657
670
            except KeyError:    # :-)
658
671
                pass
659
 
 
 
672
            
660
673
            if key == "q" or key == "Q":
661
674
                self.stop()
662
675
                break
663
676
            elif key == "window resize":
664
677
                self.size = self.screen.get_cols_rows()
665
678
                self.refresh()
666
 
            elif key == "ctrl l":
667
 
                self.screen.clear()
 
679
            elif key == "\f":  # Ctrl-L
668
680
                self.refresh()
669
681
            elif key == "l" or key == "D":
670
682
                self.toggle_log_display()
682
694
                                            "?: Help",
683
695
                                            "l: Log window toggle",
684
696
                                            "TAB: Switch window",
685
 
                                            "w: Wrap (log lines)",
686
 
                                            "v: Toggle verbose log",
687
 
                                            ))))
 
697
                                            "w: Wrap (log)"))))
688
698
                self.log_message_raw(("bold",
689
699
                                      "  "
690
700
                                      .join(("Clients:",
703
713
                else:
704
714
                    self.topwidget.set_focus(self.logbox)
705
715
                self.refresh()
706
 
            elif key == "v":
707
 
                if self.log_level == 0:
708
 
                    self.log_level = 1
709
 
                    self.log_message("Verbose mode: Off")
710
 
                else:
711
 
                    self.log_level = 0
712
 
                    self.log_message("Verbose mode: On")
713
 
            # elif (key == "end" or key == "meta >" or key == "G"
714
 
            #       or key == ">"):
715
 
            #     pass            # xxx end-of-buffer
716
 
            # elif (key == "home" or key == "meta <" or key == "g"
717
 
            #       or key == "<"):
718
 
            #     pass            # xxx beginning-of-buffer
719
 
            # elif key == "ctrl e" or key == "$":
720
 
            #     pass            # xxx move-end-of-line
721
 
            # elif key == "ctrl a" or key == "^":
722
 
            #     pass            # xxx move-beginning-of-line
723
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
724
 
            #     pass            # xxx left
725
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
726
 
            #     pass            # xxx right
727
 
            # elif key == "a":
728
 
            #     pass            # scroll up log
729
 
            # elif key == "z":
730
 
            #     pass            # scroll down log
 
716
            #elif (key == "end" or key == "meta >" or key == "G"
 
717
            #      or key == ">"):
 
718
            #    pass            # xxx end-of-buffer
 
719
            #elif (key == "home" or key == "meta <" or key == "g"
 
720
            #      or key == "<"):
 
721
            #    pass            # xxx beginning-of-buffer
 
722
            #elif key == "ctrl e" or key == "$":
 
723
            #    pass            # xxx move-end-of-line
 
724
            #elif key == "ctrl a" or key == "^":
 
725
            #    pass            # xxx move-beginning-of-line
 
726
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
727
            #    pass            # xxx left
 
728
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
729
            #    pass            # xxx right
 
730
            #elif key == "a":
 
731
            #    pass            # scroll up log
 
732
            #elif key == "z":
 
733
            #    pass            # scroll down log
731
734
            elif self.topwidget.selectable():
732
735
                self.topwidget.keypress(self.size, key)
733
736
                self.refresh()
734
737
        return True
735
738
 
736
 
 
737
739
ui = UserInterface()
738
740
try:
739
741
    ui.run()
740
742
except KeyboardInterrupt:
741
743
    ui.screen.stop()
742
 
except Exception as e:
743
 
    ui.log_message(str(e))
 
744
except Exception, e:
 
745
    ui.log_message(unicode(e))
744
746
    ui.screen.stop()
745
747
    raise