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  • Committer: Teddy Hogeborn
  • Date: 2015-08-10 16:19:28 UTC
  • Revision ID: teddy@recompile.se-20150810161928-bnukog7l47j3pjix
Depend on Avahi and the network in the server's systemd service file.

* mandos.service ([Unit]/After): New; set to "network.target" and
  "avahi-daemon.service".
  ([Unit]/RequisiteOverridable): New; set to "avahi-daemon.service".

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mandos-monitor
3
3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
5
# 
6
 
# Copyright © 2009-2011 Teddy Hogeborn
7
 
# Copyright © 2009-2011 Björn Påhlsson
 
6
# Copyright © 2009-2015 Teddy Hogeborn
 
7
# Copyright © 2009-2015 Björn Påhlsson
8
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
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
 
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
21
22
# 
22
 
# Contact the authors at <mandos@fukt.bsnet.se>.
 
23
# Contact the authors at <mandos@recompile.se>.
23
24
# 
24
25
 
25
 
from __future__ import division, absolute_import, print_function, unicode_literals
 
26
from __future__ import (division, absolute_import, print_function,
 
27
                        unicode_literals)
 
28
try:
 
29
    from future_builtins import *
 
30
except ImportError:
 
31
    pass
26
32
 
27
33
import sys
28
34
import os
29
 
import signal
30
35
 
31
36
import datetime
32
37
 
34
39
import urwid
35
40
 
36
41
from dbus.mainloop.glib import DBusGMainLoop
37
 
import gobject
 
42
try:
 
43
    import gobject
 
44
except ImportError:
 
45
    from gi.repository import GObject as gobject
38
46
 
39
47
import dbus
40
48
 
41
 
import UserList
42
 
 
43
49
import locale
44
50
 
 
51
if sys.version_info.major == 2:
 
52
    str = unicode
 
53
 
45
54
locale.setlocale(locale.LC_ALL, '')
46
55
 
47
56
import logging
48
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
49
58
 
50
59
# Some useful constants
51
 
domain = 'se.bsnet.fukt'
 
60
domain = 'se.recompile'
52
61
server_interface = domain + '.Mandos'
53
62
client_interface = domain + '.Mandos.Client'
54
 
version = "1.3.0"
55
 
 
56
 
# Always run in monochrome mode
57
 
urwid.curses_display.curses.has_colors = lambda : False
58
 
 
59
 
# Urwid doesn't support blinking, but we want it.  Since we have no
60
 
# use for underline on its own, we make underline also always blink.
61
 
urwid.curses_display.curses.A_UNDERLINE |= (
62
 
    urwid.curses_display.curses.A_BLINK)
 
63
version = "1.6.9"
 
64
 
 
65
try:
 
66
    dbus.OBJECT_MANAGER_IFACE
 
67
except AttributeError:
 
68
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
63
69
 
64
70
def isoformat_to_datetime(iso):
65
71
    "Parse an ISO 8601 date string to a datetime.datetime()"
82
88
    properties and calls a hook function when any of them are
83
89
    changed.
84
90
    """
85
 
    def __init__(self, proxy_object=None, *args, **kwargs):
 
91
    def __init__(self, proxy_object=None, properties=None, **kwargs):
86
92
        self.proxy = proxy_object # Mandos Client proxy object
87
 
        
88
 
        self.properties = dict()
89
 
        self.proxy.connect_to_signal("PropertyChanged",
90
 
                                     self.property_changed,
91
 
                                     client_interface,
92
 
                                     byte_arrays=True)
93
 
        
94
 
        self.properties.update(
95
 
            self.proxy.GetAll(client_interface,
96
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
97
 
 
98
 
        #XXX This break good super behaviour!
99
 
#        super(MandosClientPropertyCache, self).__init__(
100
 
#            *args, **kwargs)
 
93
        self.properties = dict() if properties is None else properties
 
94
        self.property_changed_match = (
 
95
            self.proxy.connect_to_signal("PropertiesChanged",
 
96
                                         self.properties_changed,
 
97
                                         dbus.PROPERTIES_IFACE,
 
98
                                         byte_arrays=True))
 
99
        
 
100
        if properties is None:
 
101
            self.properties.update(
 
102
                self.proxy.GetAll(client_interface,
 
103
                                  dbus_interface
 
104
                                  = dbus.PROPERTIES_IFACE))
 
105
        
 
106
        super(MandosClientPropertyCache, self).__init__(**kwargs)
101
107
    
102
 
    def property_changed(self, property=None, value=None):
103
 
        """This is called whenever we get a PropertyChanged signal
104
 
        It updates the changed property in the "properties" dict.
 
108
    def properties_changed(self, interface, properties, invalidated):
 
109
        """This is called whenever we get a PropertiesChanged signal
 
110
        It updates the changed properties in the "properties" dict.
105
111
        """
106
112
        # Update properties dict with new value
107
 
        self.properties[property] = value
 
113
        if interface == client_interface:
 
114
            self.properties.update(properties)
 
115
    
 
116
    def delete(self):
 
117
        self.property_changed_match.remove()
108
118
 
109
119
 
110
120
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
112
122
    """
113
123
    
114
124
    def __init__(self, server_proxy_object=None, update_hook=None,
115
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
125
                 delete_hook=None, logger=None, **kwargs):
116
126
        # Called on update
117
127
        self.update_hook = update_hook
118
128
        # Called on delete
123
133
        self.logger = logger
124
134
        
125
135
        self._update_timer_callback_tag = None
126
 
        self._update_timer_callback_lock = 0
127
 
        self.last_checker_failed = False
128
136
        
129
137
        # The widget shown normally
130
138
        self._text_widget = urwid.Text("")
131
139
        # The widget shown when we have focus
132
140
        self._focus_text_widget = urwid.Text("")
133
 
        super(MandosClientWidget, self).__init__(
134
 
            update_hook=update_hook, delete_hook=delete_hook,
135
 
            *args, **kwargs)
 
141
        super(MandosClientWidget, self).__init__(**kwargs)
136
142
        self.update()
137
143
        self.opened = False
138
144
        
139
 
        last_checked_ok = isoformat_to_datetime(self.properties
140
 
                                                ["LastCheckedOK"])
141
 
        if last_checked_ok is None:
142
 
            self.last_checker_failed = True
143
 
        else:
144
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
145
 
                                         - last_checked_ok)
146
 
                                        > datetime.timedelta
147
 
                                        (milliseconds=
148
 
                                         self.properties
149
 
                                         ["Interval"]))
150
 
        
151
 
        if self.last_checker_failed:
152
 
            self.using_timer(True)
153
 
        
154
 
        if self.need_approval:
155
 
            self.using_timer(True)
156
 
        
157
 
        self.proxy.connect_to_signal("CheckerCompleted",
158
 
                                     self.checker_completed,
159
 
                                     client_interface,
160
 
                                     byte_arrays=True)
161
 
        self.proxy.connect_to_signal("CheckerStarted",
162
 
                                     self.checker_started,
163
 
                                     client_interface,
164
 
                                     byte_arrays=True)
165
 
        self.proxy.connect_to_signal("GotSecret",
166
 
                                     self.got_secret,
167
 
                                     client_interface,
168
 
                                     byte_arrays=True)
169
 
        self.proxy.connect_to_signal("NeedApproval",
170
 
                                     self.need_approval,
171
 
                                     client_interface,
172
 
                                     byte_arrays=True)
173
 
        self.proxy.connect_to_signal("Rejected",
174
 
                                     self.rejected,
175
 
                                     client_interface,
176
 
                                     byte_arrays=True)
 
145
        self.match_objects = (
 
146
            self.proxy.connect_to_signal("CheckerCompleted",
 
147
                                         self.checker_completed,
 
148
                                         client_interface,
 
149
                                         byte_arrays=True),
 
150
            self.proxy.connect_to_signal("CheckerStarted",
 
151
                                         self.checker_started,
 
152
                                         client_interface,
 
153
                                         byte_arrays=True),
 
154
            self.proxy.connect_to_signal("GotSecret",
 
155
                                         self.got_secret,
 
156
                                         client_interface,
 
157
                                         byte_arrays=True),
 
158
            self.proxy.connect_to_signal("NeedApproval",
 
159
                                         self.need_approval,
 
160
                                         client_interface,
 
161
                                         byte_arrays=True),
 
162
            self.proxy.connect_to_signal("Rejected",
 
163
                                         self.rejected,
 
164
                                         client_interface,
 
165
                                         byte_arrays=True))
 
166
        self.logger('Created client {}'
 
167
                    .format(self.properties["Name"]), level=0)
177
168
    
178
 
    def property_changed(self, property=None, value=None):
179
 
        super(self, MandosClientWidget).property_changed(property,
180
 
                                                         value)
181
 
        if property == "ApprovalPending":
182
 
            using_timer(bool(value))
183
 
        
184
169
    def using_timer(self, flag):
185
170
        """Call this method with True or False when timer should be
186
171
        activated or deactivated.
187
172
        """
188
 
        old = self._update_timer_callback_lock
189
 
        if flag:
190
 
            self._update_timer_callback_lock += 1
191
 
        else:
192
 
            self._update_timer_callback_lock -= 1
193
 
        if old == 0 and self._update_timer_callback_lock:
 
173
        if flag and self._update_timer_callback_tag is None:
 
174
            # Will update the shown timer value every second
194
175
            self._update_timer_callback_tag = (gobject.timeout_add
195
176
                                               (1000,
196
177
                                                self.update_timer))
197
 
        elif old and self._update_timer_callback_lock == 0:
 
178
        elif not (flag or self._update_timer_callback_tag is None):
198
179
            gobject.source_remove(self._update_timer_callback_tag)
199
180
            self._update_timer_callback_tag = None
200
181
    
201
182
    def checker_completed(self, exitstatus, condition, command):
202
183
        if exitstatus == 0:
203
 
            if self.last_checker_failed:
204
 
                self.last_checker_failed = False
205
 
                self.using_timer(False)
206
 
            #self.logger('Checker for client %s (command "%s")'
207
 
            #            ' was successful'
208
 
            #            % (self.properties["Name"], command))
 
184
            self.logger('Checker for client {} (command "{}")'
 
185
                        ' succeeded'.format(self.properties["Name"],
 
186
                                            command), level=0)
209
187
            self.update()
210
188
            return
211
189
        # Checker failed
212
 
        if not self.last_checker_failed:
213
 
            self.last_checker_failed = True
214
 
            self.using_timer(True)
215
190
        if os.WIFEXITED(condition):
216
 
            self.logger('Checker for client %s (command "%s")'
217
 
                        ' failed with exit code %s'
218
 
                        % (self.properties["Name"], command,
219
 
                           os.WEXITSTATUS(condition)))
 
191
            self.logger('Checker for client {} (command "{}") failed'
 
192
                        ' with exit code {}'
 
193
                        .format(self.properties["Name"], command,
 
194
                                os.WEXITSTATUS(condition)))
220
195
        elif os.WIFSIGNALED(condition):
221
 
            self.logger('Checker for client %s (command "%s")'
222
 
                        ' was killed by signal %s'
223
 
                        % (self.properties["Name"], command,
224
 
                           os.WTERMSIG(condition)))
225
 
        elif os.WCOREDUMP(condition):
226
 
            self.logger('Checker for client %s (command "%s")'
227
 
                        ' dumped core'
228
 
                        % (self.properties["Name"], command))
229
 
        else:
230
 
            self.logger('Checker for client %s completed'
231
 
                        ' mysteriously')
 
196
            self.logger('Checker for client {} (command "{}") was'
 
197
                        ' killed by signal {}'
 
198
                        .format(self.properties["Name"], command,
 
199
                                os.WTERMSIG(condition)))
232
200
        self.update()
233
201
    
234
202
    def checker_started(self, command):
235
 
        #self.logger('Client %s started checker "%s"'
236
 
        #            % (self.properties["Name"], unicode(command)))
237
 
        pass
 
203
        """Server signals that a checker started."""
 
204
        self.logger('Client {} started checker "{}"'
 
205
                    .format(self.properties["Name"],
 
206
                            command), level=0)
238
207
    
239
208
    def got_secret(self):
240
 
        self.last_checker_failed = False
241
 
        self.logger('Client %s received its secret'
242
 
                    % self.properties["Name"])
 
209
        self.logger('Client {} received its secret'
 
210
                    .format(self.properties["Name"]))
243
211
    
244
212
    def need_approval(self, timeout, default):
245
213
        if not default:
246
 
            message = 'Client %s needs approval within %s seconds'
 
214
            message = 'Client {} needs approval within {} seconds'
247
215
        else:
248
 
            message = 'Client %s will get its secret in %s seconds'
249
 
        self.logger(message
250
 
                    % (self.properties["Name"], timeout/1000))
251
 
        self.using_timer(True)
 
216
            message = 'Client {} will get its secret in {} seconds'
 
217
        self.logger(message.format(self.properties["Name"],
 
218
                                   timeout/1000))
252
219
    
253
220
    def rejected(self, reason):
254
 
        self.logger('Client %s was rejected; reason: %s'
255
 
                    % (self.properties["Name"], reason))
 
221
        self.logger('Client {} was rejected; reason: {}'
 
222
                    .format(self.properties["Name"], reason))
256
223
    
257
224
    def selectable(self):
258
225
        """Make this a "selectable" widget.
280
247
                          "bold-underline-blink":
281
248
                              "bold-underline-blink-standout",
282
249
                          }
283
 
 
 
250
        
284
251
        # Rebuild focus and non-focus widgets using current properties
285
 
 
 
252
        
286
253
        # Base part of a client. Name!
287
 
        base = ('%(name)s: '
288
 
                      % {"name": self.properties["Name"]})
 
254
        base = '{name}: '.format(name=self.properties["Name"])
289
255
        if not self.properties["Enabled"]:
290
256
            message = "DISABLED"
 
257
            self.using_timer(False)
291
258
        elif self.properties["ApprovalPending"]:
292
259
            timeout = datetime.timedelta(milliseconds
293
260
                                         = self.properties
295
262
            last_approval_request = isoformat_to_datetime(
296
263
                self.properties["LastApprovalRequest"])
297
264
            if last_approval_request is not None:
298
 
                timer = timeout - (datetime.datetime.utcnow()
299
 
                                   - last_approval_request)
 
265
                timer = max(timeout - (datetime.datetime.utcnow()
 
266
                                       - last_approval_request),
 
267
                            datetime.timedelta())
300
268
            else:
301
269
                timer = datetime.timedelta()
302
270
            if self.properties["ApprovedByDefault"]:
303
 
                message = "Approval in %s. (d)eny?"
304
 
            else:
305
 
                message = "Denial in %s. (a)pprove?"
306
 
            message = message % unicode(timer).rsplit(".", 1)[0]
307
 
        elif self.last_checker_failed:
308
 
            timeout = datetime.timedelta(milliseconds
309
 
                                         = self.properties
310
 
                                         ["Timeout"])
311
 
            last_ok = isoformat_to_datetime(
312
 
                max((self.properties["LastCheckedOK"]
313
 
                     or self.properties["Created"]),
314
 
                    self.properties["LastEnabled"]))
315
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
271
                message = "Approval in {}. (d)eny?"
 
272
            else:
 
273
                message = "Denial in {}. (a)pprove?"
 
274
            message = message.format(str(timer).rsplit(".", 1)[0])
 
275
            self.using_timer(True)
 
276
        elif self.properties["LastCheckerStatus"] != 0:
 
277
            # When checker has failed, show timer until client expires
 
278
            expires = self.properties["Expires"]
 
279
            if expires == "":
 
280
                timer = datetime.timedelta(0)
 
281
            else:
 
282
                expires = (datetime.datetime.strptime
 
283
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
284
                timer = max(expires - datetime.datetime.utcnow(),
 
285
                            datetime.timedelta())
316
286
            message = ('A checker has failed! Time until client'
317
 
                       ' gets disabled: %s'
318
 
                           % unicode(timer).rsplit(".", 1)[0])
 
287
                       ' gets disabled: {}'
 
288
                       .format(str(timer).rsplit(".", 1)[0]))
 
289
            self.using_timer(True)
319
290
        else:
320
291
            message = "enabled"
321
 
        self._text = "%s%s" % (base, message)
322
 
            
 
292
            self.using_timer(False)
 
293
        self._text = "{}{}".format(base, message)
 
294
        
323
295
        if not urwid.supports_unicode():
324
296
            self._text = self._text.encode("ascii", "replace")
325
297
        textlist = [("normal", self._text)]
337
309
            self.update_hook()
338
310
    
339
311
    def update_timer(self):
340
 
        "called by gobject"
 
312
        """called by gobject. Will indefinitely loop until
 
313
        gobject.source_remove() on tag is called"""
341
314
        self.update()
342
315
        return True             # Keep calling this
343
316
    
344
 
    def delete(self):
 
317
    def delete(self, **kwargs):
345
318
        if self._update_timer_callback_tag is not None:
346
319
            gobject.source_remove(self._update_timer_callback_tag)
347
320
            self._update_timer_callback_tag = None
 
321
        for match in self.match_objects:
 
322
            match.remove()
 
323
        self.match_objects = ()
348
324
        if self.delete_hook is not None:
349
325
            self.delete_hook(self)
 
326
        return super(MandosClientWidget, self).delete(**kwargs)
350
327
    
351
328
    def render(self, maxcolrow, focus=False):
352
329
        """Render differently if we have focus.
358
335
        """Handle keys.
359
336
        This overrides the method from urwid.FlowWidget"""
360
337
        if key == "+":
361
 
            self.proxy.Enable(dbus_interface = client_interface)
 
338
            self.proxy.Set(client_interface, "Enabled",
 
339
                           dbus.Boolean(True), ignore_reply = True,
 
340
                           dbus_interface = dbus.PROPERTIES_IFACE)
362
341
        elif key == "-":
363
 
            self.proxy.Disable(dbus_interface = client_interface)
 
342
            self.proxy.Set(client_interface, "Enabled", False,
 
343
                           ignore_reply = True,
 
344
                           dbus_interface = dbus.PROPERTIES_IFACE)
364
345
        elif key == "a":
365
346
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
366
 
                               dbus_interface = client_interface)
 
347
                               dbus_interface = client_interface,
 
348
                               ignore_reply=True)
367
349
        elif key == "d":
368
350
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
369
 
                                  dbus_interface = client_interface)
 
351
                                  dbus_interface = client_interface,
 
352
                               ignore_reply=True)
370
353
        elif key == "R" or key == "_" or key == "ctrl k":
371
354
            self.server_proxy_object.RemoveClient(self.proxy
372
 
                                                  .object_path)
 
355
                                                  .object_path,
 
356
                                                  ignore_reply=True)
373
357
        elif key == "s":
374
 
            self.proxy.StartChecker(dbus_interface = client_interface)
 
358
            self.proxy.Set(client_interface, "CheckerRunning",
 
359
                           dbus.Boolean(True), ignore_reply = True,
 
360
                           dbus_interface = dbus.PROPERTIES_IFACE)
375
361
        elif key == "S":
376
 
            self.proxy.StopChecker(dbus_interface = client_interface)
 
362
            self.proxy.Set(client_interface, "CheckerRunning",
 
363
                           dbus.Boolean(False), ignore_reply = True,
 
364
                           dbus_interface = dbus.PROPERTIES_IFACE)
377
365
        elif key == "C":
378
 
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
366
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
367
                                 ignore_reply=True)
379
368
        # xxx
380
369
#         elif key == "p" or key == "=":
381
370
#             self.proxy.pause()
386
375
        else:
387
376
            return key
388
377
    
389
 
    def property_changed(self, property=None, value=None,
390
 
                         *args, **kwargs):
391
 
        """Call self.update() if old value is not new value.
 
378
    def properties_changed(self, interface, properties, invalidated):
 
379
        """Call self.update() if any properties changed.
392
380
        This overrides the method from MandosClientPropertyCache"""
393
 
        property_name = unicode(property)
394
 
        old_value = self.properties.get(property_name)
395
 
        super(MandosClientWidget, self).property_changed(
396
 
            property=property, value=value, *args, **kwargs)
397
 
        if self.properties.get(property_name) != old_value:
 
381
        old_values = { key: self.properties.get(key)
 
382
                       for key in properties.keys() }
 
383
        super(MandosClientWidget, self).properties_changed(
 
384
            interface, properties, invalidated)
 
385
        if any(old_values[key] != self.properties.get(key)
 
386
               for key in old_values):
398
387
            self.update()
399
388
 
400
389
 
403
392
    "down" key presses, thus not allowing any containing widgets to
404
393
    use them as an excuse to shift focus away from this widget.
405
394
    """
406
 
    def keypress(self, maxcolrow, key):
407
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
395
    def keypress(self, *args, **kwargs):
 
396
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
408
397
        if ret in ("up", "down"):
409
398
            return
410
399
        return ret
414
403
    """This is the entire user interface - the whole screen
415
404
    with boxes, lists of client widgets, etc.
416
405
    """
417
 
    def __init__(self, max_log_length=1000):
 
406
    def __init__(self, max_log_length=1000, log_level=1):
418
407
        DBusGMainLoop(set_as_default=True)
419
408
        
420
409
        self.screen = urwid.curses_display.Screen()
423
412
                ("normal",
424
413
                 "default", "default", None),
425
414
                ("bold",
426
 
                 "default", "default", "bold"),
 
415
                 "bold", "default", "bold"),
427
416
                ("underline-blink",
428
 
                 "default", "default", "underline"),
 
417
                 "underline,blink", "default", "underline,blink"),
429
418
                ("standout",
430
 
                 "default", "default", "standout"),
 
419
                 "standout", "default", "standout"),
431
420
                ("bold-underline-blink",
432
 
                 "default", "default", ("bold", "underline")),
 
421
                 "bold,underline,blink", "default", "bold,underline,blink"),
433
422
                ("bold-standout",
434
 
                 "default", "default", ("bold", "standout")),
 
423
                 "bold,standout", "default", "bold,standout"),
435
424
                ("underline-blink-standout",
436
 
                 "default", "default", ("underline", "standout")),
 
425
                 "underline,blink,standout", "default",
 
426
                 "underline,blink,standout"),
437
427
                ("bold-underline-blink-standout",
438
 
                 "default", "default", ("bold", "underline",
439
 
                                          "standout")),
 
428
                 "bold,underline,blink,standout", "default",
 
429
                 "bold,underline,blink,standout"),
440
430
                ))
441
431
        
442
432
        if urwid.supports_unicode():
457
447
        self.log = []
458
448
        self.max_log_length = max_log_length
459
449
        
 
450
        self.log_level = log_level
 
451
        
460
452
        # We keep a reference to the log widget so we can remove it
461
453
        # from the ListWalker without it getting destroyed
462
454
        self.logbox = ConstrainedListBox(self.log)
474
466
        
475
467
        self.busname = domain + '.Mandos'
476
468
        self.main_loop = gobject.MainLoop()
477
 
        self.bus = dbus.SystemBus()
478
 
        mandos_dbus_objc = self.bus.get_object(
479
 
            self.busname, "/", follow_name_owner_changes=True)
480
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
481
 
                                          dbus_interface
482
 
                                          = server_interface)
483
 
        try:
484
 
            mandos_clients = (self.mandos_serv
485
 
                              .GetAllClientsWithProperties())
486
 
        except dbus.exceptions.DBusException:
487
 
            mandos_clients = dbus.Dictionary()
488
 
        
489
 
        (self.mandos_serv
490
 
         .connect_to_signal("ClientRemoved",
491
 
                            self.find_and_remove_client,
492
 
                            dbus_interface=server_interface,
493
 
                            byte_arrays=True))
494
 
        (self.mandos_serv
495
 
         .connect_to_signal("ClientAdded",
496
 
                            self.add_new_client,
497
 
                            dbus_interface=server_interface,
498
 
                            byte_arrays=True))
499
 
        (self.mandos_serv
500
 
         .connect_to_signal("ClientNotFound",
501
 
                            self.client_not_found,
502
 
                            dbus_interface=server_interface,
503
 
                            byte_arrays=True))
504
 
        for path, client in mandos_clients.iteritems():
505
 
            client_proxy_object = self.bus.get_object(self.busname,
506
 
                                                      path)
507
 
            self.add_client(MandosClientWidget(server_proxy_object
508
 
                                               =self.mandos_serv,
509
 
                                               proxy_object
510
 
                                               =client_proxy_object,
511
 
                                               properties=client,
512
 
                                               update_hook
513
 
                                               =self.refresh,
514
 
                                               delete_hook
515
 
                                               =self.remove_client,
516
 
                                               logger
517
 
                                               =self.log_message),
518
 
                            path=path)
519
469
    
520
470
    def client_not_found(self, fingerprint, address):
521
 
        self.log_message(("Client with address %s and fingerprint %s"
522
 
                          " could not be found" % (address,
523
 
                                                    fingerprint)))
 
471
        self.log_message("Client with address {} and fingerprint {}"
 
472
                         " could not be found"
 
473
                         .format(address, fingerprint))
524
474
    
525
475
    def rebuild(self):
526
476
        """This rebuilds the User Interface.
536
486
                                                     self.divider)))
537
487
        if self.log_visible:
538
488
            self.uilist.append(self.logbox)
539
 
            pass
540
489
        self.topwidget = urwid.Pile(self.uilist)
541
490
    
542
 
    def log_message(self, message):
 
491
    def log_message(self, message, level=1):
 
492
        """Log message formatted with timestamp"""
 
493
        if level < self.log_level:
 
494
            return
543
495
        timestamp = datetime.datetime.now().isoformat()
544
 
        self.log_message_raw(timestamp + ": " + message)
 
496
        self.log_message_raw("{}: {}".format(timestamp, message),
 
497
                             level=level)
545
498
    
546
 
    def log_message_raw(self, markup):
 
499
    def log_message_raw(self, markup, level=1):
547
500
        """Add a log message to the log buffer."""
 
501
        if level < self.log_level:
 
502
            return
548
503
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
549
504
        if (self.max_log_length
550
505
            and len(self.log) > self.max_log_length):
557
512
        """Toggle visibility of the log buffer."""
558
513
        self.log_visible = not self.log_visible
559
514
        self.rebuild()
560
 
        #self.log_message("Log visibility changed to: "
561
 
        #                 + unicode(self.log_visible))
 
515
        self.log_message("Log visibility changed to: {}"
 
516
                         .format(self.log_visible), level=0)
562
517
    
563
518
    def change_log_display(self):
564
519
        """Change type of log display.
569
524
            self.log_wrap = "clip"
570
525
        for textwidget in self.log:
571
526
            textwidget.set_wrap_mode(self.log_wrap)
572
 
        #self.log_message("Wrap mode: " + self.log_wrap)
 
527
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
528
                         level=0)
573
529
    
574
 
    def find_and_remove_client(self, path, name):
575
 
        """Find an client from its object path and remove it.
 
530
    def find_and_remove_client(self, path, interfaces):
 
531
        """Find a client by its object path and remove it.
576
532
        
577
 
        This is connected to the ClientRemoved signal from the
 
533
        This is connected to the InterfacesRemoved signal from the
578
534
        Mandos server object."""
 
535
        if client_interface not in interfaces:
 
536
            # Not a Mandos client object; ignore
 
537
            return
579
538
        try:
580
539
            client = self.clients_dict[path]
581
540
        except KeyError:
582
541
            # not found?
 
542
            self.log_message("Unknown client {!r} removed"
 
543
                             .format(path))
583
544
            return
584
 
        self.remove_client(client, path)
 
545
        client.delete()
585
546
    
586
 
    def add_new_client(self, path):
 
547
    def add_new_client(self, path, ifs_and_props):
 
548
        """Find a client by its object path and remove it.
 
549
        
 
550
        This is connected to the InterfacesAdded signal from the
 
551
        Mandos server object.
 
552
        """
 
553
        if client_interface not in ifs_and_props:
 
554
            # Not a Mandos client object; ignore
 
555
            return
587
556
        client_proxy_object = self.bus.get_object(self.busname, path)
588
557
        self.add_client(MandosClientWidget(server_proxy_object
589
558
                                           =self.mandos_serv,
594
563
                                           delete_hook
595
564
                                           =self.remove_client,
596
565
                                           logger
597
 
                                           =self.log_message),
 
566
                                           =self.log_message,
 
567
                                           properties
 
568
                                           = dict(ifs_and_props[
 
569
                                               client_interface])),
598
570
                        path=path)
599
571
    
600
572
    def add_client(self, client, path=None):
602
574
        if path is None:
603
575
            path = client.proxy.object_path
604
576
        self.clients_dict[path] = client
605
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
577
        self.clients.sort(key=lambda c: c.properties["Name"])
606
578
        self.refresh()
607
579
    
608
580
    def remove_client(self, client, path=None):
610
582
        if path is None:
611
583
            path = client.proxy.object_path
612
584
        del self.clients_dict[path]
613
 
        if not self.clients_dict:
614
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
615
 
            # is completely emptied, we need to recreate it.
616
 
            self.clients = urwid.SimpleListWalker([])
617
 
            self.rebuild()
618
585
        self.refresh()
619
586
    
620
587
    def refresh(self):
624
591
    
625
592
    def run(self):
626
593
        """Start the main loop and exit when it's done."""
 
594
        self.bus = dbus.SystemBus()
 
595
        mandos_dbus_objc = self.bus.get_object(
 
596
            self.busname, "/", follow_name_owner_changes=True)
 
597
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
598
                                          dbus_interface
 
599
                                          = server_interface)
 
600
        try:
 
601
            mandos_clients = (self.mandos_serv
 
602
                              .GetAllClientsWithProperties())
 
603
            if not mandos_clients:
 
604
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
605
        except dbus.exceptions.DBusException:
 
606
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
607
            mandos_clients = dbus.Dictionary()
 
608
        
 
609
        (self.mandos_serv
 
610
         .connect_to_signal("InterfacesRemoved",
 
611
                            self.find_and_remove_client,
 
612
                            dbus_interface
 
613
                            = dbus.OBJECT_MANAGER_IFACE,
 
614
                            byte_arrays=True))
 
615
        (self.mandos_serv
 
616
         .connect_to_signal("InterfacesAdded",
 
617
                            self.add_new_client,
 
618
                            dbus_interface
 
619
                            = dbus.OBJECT_MANAGER_IFACE,
 
620
                            byte_arrays=True))
 
621
        (self.mandos_serv
 
622
         .connect_to_signal("ClientNotFound",
 
623
                            self.client_not_found,
 
624
                            dbus_interface=server_interface,
 
625
                            byte_arrays=True))
 
626
        for path, client in mandos_clients.items():
 
627
            client_proxy_object = self.bus.get_object(self.busname,
 
628
                                                      path)
 
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),
 
640
                            path=path)
 
641
        
627
642
        self.refresh()
628
643
        self._input_callback_tag = (gobject.io_add_watch
629
644
                                    (sys.stdin.fileno(),
661
676
            elif key == "window resize":
662
677
                self.size = self.screen.get_cols_rows()
663
678
                self.refresh()
664
 
            elif key == "\f":  # Ctrl-L
 
679
            elif key == "ctrl l":
 
680
                self.screen.clear()
665
681
                self.refresh()
666
682
            elif key == "l" or key == "D":
667
683
                self.toggle_log_display()
679
695
                                            "?: Help",
680
696
                                            "l: Log window toggle",
681
697
                                            "TAB: Switch window",
682
 
                                            "w: Wrap (log)"))))
 
698
                                            "w: Wrap (log lines)",
 
699
                                            "v: Toggle verbose log",
 
700
                                            ))))
683
701
                self.log_message_raw(("bold",
684
702
                                      "  "
685
703
                                      .join(("Clients:",
698
716
                else:
699
717
                    self.topwidget.set_focus(self.logbox)
700
718
                self.refresh()
 
719
            elif key == "v":
 
720
                if self.log_level == 0:
 
721
                    self.log_level = 1
 
722
                    self.log_message("Verbose mode: Off")
 
723
                else:
 
724
                    self.log_level = 0
 
725
                    self.log_message("Verbose mode: On")
701
726
            #elif (key == "end" or key == "meta >" or key == "G"
702
727
            #      or key == ">"):
703
728
            #    pass            # xxx end-of-buffer
726
751
    ui.run()
727
752
except KeyboardInterrupt:
728
753
    ui.screen.stop()
729
 
except Exception, e:
730
 
    ui.log_message(unicode(e))
 
754
except Exception as e:
 
755
    ui.log_message(str(e))
731
756
    ui.screen.stop()
732
757
    raise