/mandos/trunk

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  • Committer: Teddy Hogeborn
  • Date: 2014-10-08 21:07:10 UTC
  • Revision ID: teddy@recompile.se-20141008210710-x0rg80z2aabdg05d
Handle local Zeroconf service name collisions.

Service name collisions from other servers have always been handled,
but not *local* name collisions from services on the same host.

* mandos (AvahiService/rename): Handle local Zeroconf service name
                                collision.
  (AvahiServiceToSyslog.rename): Pass on any extra arguments.

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mandos-monitor
1
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
 
3
# 
 
4
# Mandos Monitor - Control and monitor the Mandos server
 
5
# 
 
6
# Copyright © 2009-2014 Teddy Hogeborn
 
7
# Copyright © 2009-2014 Björn Påhlsson
 
8
# 
 
9
# This program is free software: you can redistribute it and/or modify
 
10
# it under the terms of the GNU General Public License as published by
 
11
# the Free Software Foundation, either version 3 of the License, or
 
12
# (at your option) any later version.
 
13
#
 
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
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
17
#     GNU General Public License for more details.
 
18
# 
 
19
# 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
# 
 
23
# Contact the authors at <mandos@recompile.se>.
 
24
# 
3
25
 
4
 
from __future__ import division, absolute_import, with_statement
 
26
from __future__ import (division, absolute_import, print_function,
 
27
                        unicode_literals)
 
28
try:
 
29
    from future_builtins import *
 
30
except ImportError:
 
31
    pass
5
32
 
6
33
import sys
7
 
import signal
 
34
import os
 
35
 
 
36
import datetime
8
37
 
9
38
import urwid.curses_display
10
39
import urwid
11
40
 
12
41
from dbus.mainloop.glib import DBusGMainLoop
13
 
import gobject
 
42
try:
 
43
    import gobject
 
44
except ImportError:
 
45
    from gi.repository import GObject as gobject
14
46
 
15
47
import dbus
16
48
 
17
 
import UserList
 
49
import locale
 
50
 
 
51
if sys.version_info.major == 2:
 
52
    str = unicode
 
53
 
 
54
locale.setlocale(locale.LC_ALL, '')
 
55
 
 
56
import logging
 
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
18
58
 
19
59
# Some useful constants
20
 
domain = 'se.bsnet.fukt'
 
60
domain = 'se.recompile'
21
61
server_interface = domain + '.Mandos'
22
62
client_interface = domain + '.Mandos.Client'
23
 
version = "1.0.14"
24
 
 
25
 
# Always run in monochrome mode
26
 
urwid.curses_display.curses.has_colors = lambda : False
27
 
 
28
 
# Urwid doesn't support blinking, but we want it.  Since we have no
29
 
# use for underline on its own, we make underline also always blink.
30
 
urwid.curses_display.curses.A_UNDERLINE |= (
31
 
    urwid.curses_display.curses.A_BLINK)
 
63
version = "1.6.9"
 
64
 
 
65
def isoformat_to_datetime(iso):
 
66
    "Parse an ISO 8601 date string to a datetime.datetime()"
 
67
    if not iso:
 
68
        return None
 
69
    d, t = iso.split("T", 1)
 
70
    year, month, day = d.split("-", 2)
 
71
    hour, minute, second = t.split(":", 2)
 
72
    second, fraction = divmod(float(second), 1)
 
73
    return datetime.datetime(int(year),
 
74
                             int(month),
 
75
                             int(day),
 
76
                             int(hour),
 
77
                             int(minute),
 
78
                             int(second),           # Whole seconds
 
79
                             int(fraction*1000000)) # Microseconds
32
80
 
33
81
class MandosClientPropertyCache(object):
34
82
    """This wraps a Mandos Client D-Bus proxy object, caches the
35
83
    properties and calls a hook function when any of them are
36
84
    changed.
37
85
    """
38
 
    def __init__(self, proxy_object=None, properties=None, *args,
39
 
                 **kwargs):
 
86
    def __init__(self, proxy_object=None, properties=None, **kwargs):
40
87
        self.proxy = proxy_object # Mandos Client proxy object
41
 
        
42
 
        if properties is None:
43
 
            self.properties = dict()
44
 
        else:
45
 
            self.properties = properties
46
 
        self.proxy.connect_to_signal("PropertyChanged",
47
 
                                     self.property_changed,
48
 
                                     client_interface,
49
 
                                     byte_arrays=True)
50
 
        
51
 
        if properties is None:
52
 
            self.properties.update(self.proxy.GetAll(client_interface,
53
 
                                                     dbus_interface =
54
 
                                                     dbus.PROPERTIES_IFACE))
55
 
        super(MandosClientPropertyCache, self).__init__(
56
 
            proxy_object=proxy_object,
57
 
            properties=properties, *args, **kwargs)
 
88
        self.properties = dict() if properties is None else properties
 
89
        self.property_changed_match = (
 
90
            self.proxy.connect_to_signal("PropertiesChanged",
 
91
                                         self.properties_changed,
 
92
                                         dbus.PROPERTIES_IFACE,
 
93
                                         byte_arrays=True))
 
94
        
 
95
        if properties is None:
 
96
            self.properties.update(
 
97
                self.proxy.GetAll(client_interface,
 
98
                                  dbus_interface
 
99
                                  = dbus.PROPERTIES_IFACE))
 
100
        
 
101
        super(MandosClientPropertyCache, self).__init__(**kwargs)
58
102
    
59
 
    def property_changed(self, property=None, value=None):
60
 
        """This is called whenever we get a PropertyChanged signal
61
 
        It updates the changed property in the "properties" dict.
 
103
    def properties_changed(self, interface, properties, invalidated):
 
104
        """This is called whenever we get a PropertiesChanged signal
 
105
        It updates the changed properties in the "properties" dict.
62
106
        """
63
107
        # Update properties dict with new value
64
 
        self.properties[property] = value
 
108
        self.properties.update(properties)
 
109
    
 
110
    def delete(self):
 
111
        self.property_changed_match.remove()
65
112
 
66
113
 
67
114
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
69
116
    """
70
117
    
71
118
    def __init__(self, server_proxy_object=None, update_hook=None,
72
 
                 delete_hook=None, *args, **kwargs):
 
119
                 delete_hook=None, logger=None, **kwargs):
73
120
        # Called on update
74
121
        self.update_hook = update_hook
75
122
        # Called on delete
76
123
        self.delete_hook = delete_hook
77
124
        # Mandos Server proxy object
78
125
        self.server_proxy_object = server_proxy_object
 
126
        # Logger
 
127
        self.logger = logger
 
128
        
 
129
        self._update_timer_callback_tag = None
79
130
        
80
131
        # The widget shown normally
81
132
        self._text_widget = urwid.Text("")
82
133
        # The widget shown when we have focus
83
134
        self._focus_text_widget = urwid.Text("")
84
 
        super(MandosClientWidget, self).__init__(
85
 
            update_hook=update_hook, delete_hook=delete_hook,
86
 
            *args, **kwargs)
 
135
        super(MandosClientWidget, self).__init__(**kwargs)
87
136
        self.update()
88
137
        self.opened = False
 
138
        
 
139
        self.match_objects = (
 
140
            self.proxy.connect_to_signal("CheckerCompleted",
 
141
                                         self.checker_completed,
 
142
                                         client_interface,
 
143
                                         byte_arrays=True),
 
144
            self.proxy.connect_to_signal("CheckerStarted",
 
145
                                         self.checker_started,
 
146
                                         client_interface,
 
147
                                         byte_arrays=True),
 
148
            self.proxy.connect_to_signal("GotSecret",
 
149
                                         self.got_secret,
 
150
                                         client_interface,
 
151
                                         byte_arrays=True),
 
152
            self.proxy.connect_to_signal("NeedApproval",
 
153
                                         self.need_approval,
 
154
                                         client_interface,
 
155
                                         byte_arrays=True),
 
156
            self.proxy.connect_to_signal("Rejected",
 
157
                                         self.rejected,
 
158
                                         client_interface,
 
159
                                         byte_arrays=True))
 
160
        self.logger('Created client {}'
 
161
                    .format(self.properties["Name"]), level=0)
 
162
    
 
163
    def using_timer(self, flag):
 
164
        """Call this method with True or False when timer should be
 
165
        activated or deactivated.
 
166
        """
 
167
        if flag and self._update_timer_callback_tag is None:
 
168
            # Will update the shown timer value every second
 
169
            self._update_timer_callback_tag = (gobject.timeout_add
 
170
                                               (1000,
 
171
                                                self.update_timer))
 
172
        elif not (flag or self._update_timer_callback_tag is None):
 
173
            gobject.source_remove(self._update_timer_callback_tag)
 
174
            self._update_timer_callback_tag = None
 
175
    
 
176
    def checker_completed(self, exitstatus, condition, command):
 
177
        if exitstatus == 0:
 
178
            self.logger('Checker for client {} (command "{}")'
 
179
                        ' succeeded'.format(self.properties["Name"],
 
180
                                            command), level=0)
 
181
            self.update()
 
182
            return
 
183
        # Checker failed
 
184
        if os.WIFEXITED(condition):
 
185
            self.logger('Checker for client {} (command "{}") failed'
 
186
                        ' with exit code {}'
 
187
                        .format(self.properties["Name"], command,
 
188
                                os.WEXITSTATUS(condition)))
 
189
        elif os.WIFSIGNALED(condition):
 
190
            self.logger('Checker for client {} (command "{}") was'
 
191
                        ' killed by signal {}'
 
192
                        .format(self.properties["Name"], command,
 
193
                                os.WTERMSIG(condition)))
 
194
        elif os.WCOREDUMP(condition):
 
195
            self.logger('Checker for client {} (command "{}") dumped'
 
196
                        ' core'.format(self.properties["Name"],
 
197
                                       command))
 
198
        else:
 
199
            self.logger('Checker for client {} completed'
 
200
                        ' mysteriously'
 
201
                        .format(self.properties["Name"]))
 
202
        self.update()
 
203
    
 
204
    def checker_started(self, command):
 
205
        """Server signals that a checker started."""
 
206
        self.logger('Client {} started checker "{}"'
 
207
                    .format(self.properties["Name"],
 
208
                            command), level=0)
 
209
    
 
210
    def got_secret(self):
 
211
        self.logger('Client {} received its secret'
 
212
                    .format(self.properties["Name"]))
 
213
    
 
214
    def need_approval(self, timeout, default):
 
215
        if not default:
 
216
            message = 'Client {} needs approval within {} seconds'
 
217
        else:
 
218
            message = 'Client {} will get its secret in {} seconds'
 
219
        self.logger(message.format(self.properties["Name"],
 
220
                                   timeout/1000))
 
221
    
 
222
    def rejected(self, reason):
 
223
        self.logger('Client {} was rejected; reason: {}'
 
224
                    .format(self.properties["Name"], reason))
89
225
    
90
226
    def selectable(self):
91
227
        """Make this a "selectable" widget.
92
228
        This overrides the method from urwid.FlowWidget."""
93
229
        return True
94
230
    
95
 
    def rows(self, (maxcol,), focus=False):
 
231
    def rows(self, maxcolrow, focus=False):
96
232
        """How many rows this widget will occupy might depend on
97
233
        whether we have focus or not.
98
234
        This overrides the method from urwid.FlowWidget"""
99
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
235
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
100
236
    
101
237
    def current_widget(self, focus=False):
102
238
        if focus or self.opened:
106
242
    def update(self):
107
243
        "Called when what is visible on the screen should be updated."
108
244
        # How to add standout mode to a style
109
 
        with_standout = { u"normal": u"standout",
110
 
                          u"bold": u"bold-standout",
111
 
                          u"underline-blink":
112
 
                              u"underline-blink-standout",
113
 
                          u"bold-underline-blink":
114
 
                              u"bold-underline-blink-standout",
 
245
        with_standout = { "normal": "standout",
 
246
                          "bold": "bold-standout",
 
247
                          "underline-blink":
 
248
                              "underline-blink-standout",
 
249
                          "bold-underline-blink":
 
250
                              "bold-underline-blink-standout",
115
251
                          }
116
252
        
117
253
        # Rebuild focus and non-focus widgets using current properties
118
 
        self._text = (u'name="%(name)s", enabled=%(enabled)s'
119
 
                      % self.properties)
 
254
        
 
255
        # Base part of a client. Name!
 
256
        base = '{name}: '.format(name=self.properties["Name"])
 
257
        if not self.properties["Enabled"]:
 
258
            message = "DISABLED"
 
259
            self.using_timer(False)
 
260
        elif self.properties["ApprovalPending"]:
 
261
            timeout = datetime.timedelta(milliseconds
 
262
                                         = self.properties
 
263
                                         ["ApprovalDelay"])
 
264
            last_approval_request = isoformat_to_datetime(
 
265
                self.properties["LastApprovalRequest"])
 
266
            if last_approval_request is not None:
 
267
                timer = max(timeout - (datetime.datetime.utcnow()
 
268
                                       - last_approval_request),
 
269
                            datetime.timedelta())
 
270
            else:
 
271
                timer = datetime.timedelta()
 
272
            if self.properties["ApprovedByDefault"]:
 
273
                message = "Approval in {}. (d)eny?"
 
274
            else:
 
275
                message = "Denial in {}. (a)pprove?"
 
276
            message = message.format(str(timer).rsplit(".", 1)[0])
 
277
            self.using_timer(True)
 
278
        elif self.properties["LastCheckerStatus"] != 0:
 
279
            # When checker has failed, show timer until client expires
 
280
            expires = self.properties["Expires"]
 
281
            if expires == "":
 
282
                timer = datetime.timedelta(0)
 
283
            else:
 
284
                expires = (datetime.datetime.strptime
 
285
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
286
                timer = max(expires - datetime.datetime.utcnow(),
 
287
                            datetime.timedelta())
 
288
            message = ('A checker has failed! Time until client'
 
289
                       ' gets disabled: {}'
 
290
                       .format(str(timer).rsplit(".", 1)[0]))
 
291
            self.using_timer(True)
 
292
        else:
 
293
            message = "enabled"
 
294
            self.using_timer(False)
 
295
        self._text = "{}{}".format(base, message)
 
296
        
120
297
        if not urwid.supports_unicode():
121
298
            self._text = self._text.encode("ascii", "replace")
122
 
        textlist = [(u"normal", u"BLARGH: "), (u"bold", self._text)]
 
299
        textlist = [("normal", self._text)]
123
300
        self._text_widget.set_text(textlist)
124
301
        self._focus_text_widget.set_text([(with_standout[text[0]],
125
302
                                           text[1])
133
310
        if self.update_hook is not None:
134
311
            self.update_hook()
135
312
    
136
 
    def delete(self):
 
313
    def update_timer(self):
 
314
        """called by gobject. Will indefinitely loop until
 
315
        gobject.source_remove() on tag is called"""
 
316
        self.update()
 
317
        return True             # Keep calling this
 
318
    
 
319
    def delete(self, **kwargs):
 
320
        if self._update_timer_callback_tag is not None:
 
321
            gobject.source_remove(self._update_timer_callback_tag)
 
322
            self._update_timer_callback_tag = None
 
323
        for match in self.match_objects:
 
324
            match.remove()
 
325
        self.match_objects = ()
137
326
        if self.delete_hook is not None:
138
327
            self.delete_hook(self)
 
328
        return super(MandosClientWidget, self).delete(**kwargs)
139
329
    
140
 
    def render(self, (maxcol,), focus=False):
 
330
    def render(self, maxcolrow, focus=False):
141
331
        """Render differently if we have focus.
142
332
        This overrides the method from urwid.FlowWidget"""
143
 
        return self.current_widget(focus).render((maxcol,),
 
333
        return self.current_widget(focus).render(maxcolrow,
144
334
                                                 focus=focus)
145
335
    
146
 
    def keypress(self, (maxcol,), key):
 
336
    def keypress(self, maxcolrow, key):
147
337
        """Handle keys.
148
338
        This overrides the method from urwid.FlowWidget"""
149
 
        if key == u"e" or key == u"+":
150
 
            self.proxy.Enable()
151
 
        elif key == u"d" or key == u"-":
152
 
            self.proxy.Disable()
153
 
        elif key == u"r" or key == u"_":
 
339
        if key == "+":
 
340
            self.proxy.Enable(dbus_interface = client_interface,
 
341
                              ignore_reply=True)
 
342
        elif key == "-":
 
343
            self.proxy.Disable(dbus_interface = client_interface,
 
344
                               ignore_reply=True)
 
345
        elif key == "a":
 
346
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
347
                               dbus_interface = client_interface,
 
348
                               ignore_reply=True)
 
349
        elif key == "d":
 
350
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
351
                                  dbus_interface = client_interface,
 
352
                               ignore_reply=True)
 
353
        elif key == "R" or key == "_" or key == "ctrl k":
154
354
            self.server_proxy_object.RemoveClient(self.proxy
155
 
                                                  .object_path)
156
 
        elif key == u"s":
157
 
            self.proxy.StartChecker()
158
 
        elif key == u"c":
159
 
            self.proxy.StopChecker()
160
 
        elif key == u"S":
161
 
            self.proxy.CheckedOK()
 
355
                                                  .object_path,
 
356
                                                  ignore_reply=True)
 
357
        elif key == "s":
 
358
            self.proxy.StartChecker(dbus_interface = client_interface,
 
359
                                    ignore_reply=True)
 
360
        elif key == "S":
 
361
            self.proxy.StopChecker(dbus_interface = client_interface,
 
362
                                   ignore_reply=True)
 
363
        elif key == "C":
 
364
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
365
                                 ignore_reply=True)
162
366
        # xxx
163
 
#         elif key == u"p" or key == "=":
 
367
#         elif key == "p" or key == "=":
164
368
#             self.proxy.pause()
165
 
#         elif key == u"u" or key == ":":
 
369
#         elif key == "u" or key == ":":
166
370
#             self.proxy.unpause()
167
 
#         elif key == u"RET":
 
371
#         elif key == "RET":
168
372
#             self.open()
169
373
        else:
170
374
            return key
171
375
    
172
 
    def property_changed(self, property=None, value=None,
173
 
                         *args, **kwargs):
174
 
        """Call self.update() if old value is not new value.
 
376
    def properties_changed(self, interface, properties, invalidated):
 
377
        """Call self.update() if any properties changed.
175
378
        This overrides the method from MandosClientPropertyCache"""
176
 
        property_name = unicode(property)
177
 
        old_value = self.properties.get(property_name)
178
 
        super(MandosClientWidget, self).property_changed(
179
 
            property=property, value=value, *args, **kwargs)
180
 
        if self.properties.get(property_name) != old_value:
 
379
        old_values = { key: self.properties.get(key)
 
380
                       for key in properties.keys() }
 
381
        super(MandosClientWidget, self).properties_changed(
 
382
            interface, properties, invalidated)
 
383
        if any(old_values[key] != self.properties.get(key)
 
384
               for key in old_values):
181
385
            self.update()
182
386
 
183
387
 
186
390
    "down" key presses, thus not allowing any containing widgets to
187
391
    use them as an excuse to shift focus away from this widget.
188
392
    """
189
 
    def keypress(self, (maxcol, maxrow), key):
190
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
191
 
        if ret in (u"up", u"down"):
 
393
    def keypress(self, *args, **kwargs):
 
394
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
395
        if ret in ("up", "down"):
192
396
            return
193
397
        return ret
194
398
 
197
401
    """This is the entire user interface - the whole screen
198
402
    with boxes, lists of client widgets, etc.
199
403
    """
200
 
    def __init__(self, max_log_length=1000):
 
404
    def __init__(self, max_log_length=1000, log_level=1):
201
405
        DBusGMainLoop(set_as_default=True)
202
406
        
203
407
        self.screen = urwid.curses_display.Screen()
204
408
        
205
409
        self.screen.register_palette((
206
 
                (u"normal",
207
 
                 u"default", u"default", None),
208
 
                (u"bold",
209
 
                 u"default", u"default", u"bold"),
210
 
                (u"underline-blink",
211
 
                 u"default", u"default", u"underline"),
212
 
                (u"standout",
213
 
                 u"default", u"default", u"standout"),
214
 
                (u"bold-underline-blink",
215
 
                 u"default", u"default", (u"bold", u"underline")),
216
 
                (u"bold-standout",
217
 
                 u"default", u"default", (u"bold", u"standout")),
218
 
                (u"underline-blink-standout",
219
 
                 u"default", u"default", (u"underline", u"standout")),
220
 
                (u"bold-underline-blink-standout",
221
 
                 u"default", u"default", (u"bold", u"underline",
222
 
                                          u"standout")),
 
410
                ("normal",
 
411
                 "default", "default", None),
 
412
                ("bold",
 
413
                 "bold", "default", "bold"),
 
414
                ("underline-blink",
 
415
                 "underline,blink", "default", "underline,blink"),
 
416
                ("standout",
 
417
                 "standout", "default", "standout"),
 
418
                ("bold-underline-blink",
 
419
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
420
                ("bold-standout",
 
421
                 "bold,standout", "default", "bold,standout"),
 
422
                ("underline-blink-standout",
 
423
                 "underline,blink,standout", "default",
 
424
                 "underline,blink,standout"),
 
425
                ("bold-underline-blink-standout",
 
426
                 "bold,underline,blink,standout", "default",
 
427
                 "bold,underline,blink,standout"),
223
428
                ))
224
429
        
225
430
        if urwid.supports_unicode():
226
 
            #self.divider = u"─" # \u2500
227
 
            self.divider = u"━" # \u2501
 
431
            self.divider = "─" # \u2500
 
432
            #self.divider = "━" # \u2501
228
433
        else:
229
 
            #self.divider = u"-" # \u002d
230
 
            self.divider = u"_" # \u005f
 
434
            #self.divider = "-" # \u002d
 
435
            self.divider = "_" # \u005f
231
436
        
232
437
        self.screen.start()
233
438
        
240
445
        self.log = []
241
446
        self.max_log_length = max_log_length
242
447
        
 
448
        self.log_level = log_level
 
449
        
243
450
        # We keep a reference to the log widget so we can remove it
244
451
        # from the ListWalker without it getting destroyed
245
452
        self.logbox = ConstrainedListBox(self.log)
247
454
        # This keeps track of whether self.uilist currently has
248
455
        # self.logbox in it or not
249
456
        self.log_visible = True
250
 
        self.log_wrap = u"any"
 
457
        self.log_wrap = "any"
251
458
        
252
459
        self.rebuild()
253
 
        self.log_message(u"Message")
254
 
        self.log_message(u"Message0 Message1 Message2 Message3 Message4 Message5 Message6 Message7 Message8 Message9")
255
 
        self.log_message(u"Message10 Message11 Message12 Message13 Message14 Message15 Message16 Message17 Message18 Message19")
256
 
        self.log_message(u"Message20 Message21 Message22 Message23 Message24 Message25 Message26 Message27 Message28 Message29")
 
460
        self.log_message_raw(("bold",
 
461
                              "Mandos Monitor version " + version))
 
462
        self.log_message_raw(("bold",
 
463
                              "q: Quit  ?: Help"))
257
464
        
258
465
        self.busname = domain + '.Mandos'
259
466
        self.main_loop = gobject.MainLoop()
260
 
        self.bus = dbus.SystemBus()
261
 
        mandos_dbus_objc = self.bus.get_object(
262
 
            self.busname, u"/", follow_name_owner_changes=True)
263
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
264
 
                                          dbus_interface
265
 
                                          = server_interface)
266
 
        try:
267
 
            mandos_clients = (self.mandos_serv
268
 
                              .GetAllClientsWithProperties())
269
 
        except dbus.exceptions.DBusException:
270
 
            mandos_clients = dbus.Dictionary()
271
 
        
272
 
        (self.mandos_serv
273
 
         .connect_to_signal("ClientRemoved",
274
 
                            self.find_and_remove_client,
275
 
                            dbus_interface=server_interface,
276
 
                            byte_arrays=True))
277
 
        (self.mandos_serv
278
 
         .connect_to_signal("ClientAdded",
279
 
                            self.add_new_client,
280
 
                            dbus_interface=server_interface,
281
 
                            byte_arrays=True))
282
 
        for path, client in mandos_clients.iteritems():
283
 
            client_proxy_object = self.bus.get_object(self.busname,
284
 
                                                      path)
285
 
            self.add_client(MandosClientWidget(server_proxy_object
286
 
                                               =self.mandos_serv,
287
 
                                               proxy_object
288
 
                                               =client_proxy_object,
289
 
                                               properties=client,
290
 
                                               update_hook
291
 
                                               =self.refresh,
292
 
                                               delete_hook
293
 
                                               =self.remove_client),
294
 
                            path=path)
 
467
    
 
468
    def client_not_found(self, fingerprint, address):
 
469
        self.log_message("Client with address {} and fingerprint {}"
 
470
                         " could not be found"
 
471
                         .format(address, fingerprint))
295
472
    
296
473
    def rebuild(self):
297
474
        """This rebuilds the User Interface.
298
475
        Call this when the widget layout needs to change"""
299
476
        self.uilist = []
300
477
        #self.uilist.append(urwid.ListBox(self.clients))
301
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
478
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
479
                                                          clients),
302
480
                                       #header=urwid.Divider(),
303
481
                                       header=None,
304
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
482
                                       footer=
 
483
                                       urwid.Divider(div_char=
 
484
                                                     self.divider)))
305
485
        if self.log_visible:
306
486
            self.uilist.append(self.logbox)
307
 
            pass
308
487
        self.topwidget = urwid.Pile(self.uilist)
309
488
    
310
 
    def log_message(self, markup):
 
489
    def log_message(self, message, level=1):
 
490
        """Log message formatted with timestamp"""
 
491
        if level < self.log_level:
 
492
            return
 
493
        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):
311
498
        """Add a log message to the log buffer."""
 
499
        if level < self.log_level:
 
500
            return
312
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
313
502
        if (self.max_log_length
314
503
            and len(self.log) > self.max_log_length):
315
504
            del self.log[0:len(self.log)-self.max_log_length-1]
 
505
        self.logbox.set_focus(len(self.logbox.body.contents),
 
506
                              coming_from="above")
 
507
        self.refresh()
316
508
    
317
509
    def toggle_log_display(self):
318
510
        """Toggle visibility of the log buffer."""
319
511
        self.log_visible = not self.log_visible
320
512
        self.rebuild()
321
 
        self.log_message(u"Log visibility changed to: "
322
 
                         + unicode(self.log_visible))
 
513
        self.log_message("Log visibility changed to: {}"
 
514
                         .format(self.log_visible), level=0)
323
515
    
324
516
    def change_log_display(self):
325
517
        """Change type of log display.
326
518
        Currently, this toggles wrapping of text lines."""
327
 
        if self.log_wrap == u"clip":
328
 
            self.log_wrap = u"any"
 
519
        if self.log_wrap == "clip":
 
520
            self.log_wrap = "any"
329
521
        else:
330
 
            self.log_wrap = u"clip"
 
522
            self.log_wrap = "clip"
331
523
        for textwidget in self.log:
332
524
            textwidget.set_wrap_mode(self.log_wrap)
333
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
525
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
526
                         level=0)
334
527
    
335
528
    def find_and_remove_client(self, path, name):
336
 
        """Find an client from its object path and remove it.
 
529
        """Find a client by its object path and remove it.
337
530
        
338
531
        This is connected to the ClientRemoved signal from the
339
532
        Mandos server object."""
341
534
            client = self.clients_dict[path]
342
535
        except KeyError:
343
536
            # not found?
 
537
            self.log_message("Unknown client {!r} ({!r}) removed"
 
538
                             .format(name, path))
344
539
            return
345
 
        self.remove_client(client, path)
 
540
        client.delete()
346
541
    
347
 
    def add_new_client(self, path, properties):
 
542
    def add_new_client(self, path):
348
543
        client_proxy_object = self.bus.get_object(self.busname, path)
349
544
        self.add_client(MandosClientWidget(server_proxy_object
350
545
                                           =self.mandos_serv,
351
546
                                           proxy_object
352
547
                                           =client_proxy_object,
353
 
                                           properties=properties,
354
548
                                           update_hook
355
549
                                           =self.refresh,
356
550
                                           delete_hook
357
 
                                           =self.remove_client),
 
551
                                           =self.remove_client,
 
552
                                           logger
 
553
                                           =self.log_message),
358
554
                        path=path)
359
555
    
360
556
    def add_client(self, client, path=None):
362
558
        if path is None:
363
559
            path = client.proxy.object_path
364
560
        self.clients_dict[path] = client
365
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
561
        self.clients.sort(key=lambda c: c.properties["Name"])
366
562
        self.refresh()
367
563
    
368
564
    def remove_client(self, client, path=None):
370
566
        if path is None:
371
567
            path = client.proxy.object_path
372
568
        del self.clients_dict[path]
373
 
        if not self.clients_dict:
374
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
375
 
            # is completely emptied, we need to recreate it.
376
 
            self.clients = urwid.SimpleListWalker([])
377
 
            self.rebuild()
378
569
        self.refresh()
379
570
    
380
571
    def refresh(self):
384
575
    
385
576
    def run(self):
386
577
        """Start the main loop and exit when it's done."""
 
578
        self.bus = dbus.SystemBus()
 
579
        mandos_dbus_objc = self.bus.get_object(
 
580
            self.busname, "/", follow_name_owner_changes=True)
 
581
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
582
                                          dbus_interface
 
583
                                          = server_interface)
 
584
        try:
 
585
            mandos_clients = (self.mandos_serv
 
586
                              .GetAllClientsWithProperties())
 
587
            if not mandos_clients:
 
588
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
589
        except dbus.exceptions.DBusException:
 
590
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
591
            mandos_clients = dbus.Dictionary()
 
592
        
 
593
        (self.mandos_serv
 
594
         .connect_to_signal("ClientRemoved",
 
595
                            self.find_and_remove_client,
 
596
                            dbus_interface=server_interface,
 
597
                            byte_arrays=True))
 
598
        (self.mandos_serv
 
599
         .connect_to_signal("ClientAdded",
 
600
                            self.add_new_client,
 
601
                            dbus_interface=server_interface,
 
602
                            byte_arrays=True))
 
603
        (self.mandos_serv
 
604
         .connect_to_signal("ClientNotFound",
 
605
                            self.client_not_found,
 
606
                            dbus_interface=server_interface,
 
607
                            byte_arrays=True))
 
608
        for path, client in mandos_clients.items():
 
609
            client_proxy_object = self.bus.get_object(self.busname,
 
610
                                                      path)
 
611
            self.add_client(MandosClientWidget(server_proxy_object
 
612
                                               =self.mandos_serv,
 
613
                                               proxy_object
 
614
                                               =client_proxy_object,
 
615
                                               properties=client,
 
616
                                               update_hook
 
617
                                               =self.refresh,
 
618
                                               delete_hook
 
619
                                               =self.remove_client,
 
620
                                               logger
 
621
                                               =self.log_message),
 
622
                            path=path)
 
623
        
387
624
        self.refresh()
388
625
        self._input_callback_tag = (gobject.io_add_watch
389
626
                                    (sys.stdin.fileno(),
399
636
    
400
637
    def process_input(self, source, condition):
401
638
        keys = self.screen.get_input()
402
 
        translations = { u"ctrl n": u"down",      # Emacs
403
 
                         u"ctrl p": u"up",        # Emacs
404
 
                         u"ctrl v": u"page down", # Emacs
405
 
                         u"meta v": u"page up",   # Emacs
406
 
                         u" ": u"page down",      # less
407
 
                         u"f": u"page down",      # less
408
 
                         u"b": u"page up",        # less
409
 
                         u"j": u"down",           # vi
410
 
                         u"k": u"up",             # vi
 
639
        translations = { "ctrl n": "down",      # Emacs
 
640
                         "ctrl p": "up",        # Emacs
 
641
                         "ctrl v": "page down", # Emacs
 
642
                         "meta v": "page up",   # Emacs
 
643
                         " ": "page down",      # less
 
644
                         "f": "page down",      # less
 
645
                         "b": "page up",        # less
 
646
                         "j": "down",           # vi
 
647
                         "k": "up",             # vi
411
648
                         }
412
649
        for key in keys:
413
650
            try:
415
652
            except KeyError:    # :-)
416
653
                pass
417
654
            
418
 
            if key == u"q" or key == u"Q":
 
655
            if key == "q" or key == "Q":
419
656
                self.stop()
420
657
                break
421
 
            elif key == u"window resize":
 
658
            elif key == "window resize":
422
659
                self.size = self.screen.get_cols_rows()
423
660
                self.refresh()
424
 
            elif key == u"\f":  # Ctrl-L
 
661
            elif key == "ctrl l":
 
662
                self.screen.clear()
425
663
                self.refresh()
426
 
            elif key == u"l" or key == u"D":
 
664
            elif key == "l" or key == "D":
427
665
                self.toggle_log_display()
428
666
                self.refresh()
429
 
            elif key == u"w" or key == u"i":
 
667
            elif key == "w" or key == "i":
430
668
                self.change_log_display()
431
669
                self.refresh()
432
 
            elif key == u"?" or key == u"f1":
433
 
                self.log_message(u"Help!")
 
670
            elif key == "?" or key == "f1" or key == "esc":
 
671
                if not self.log_visible:
 
672
                    self.log_visible = True
 
673
                    self.rebuild()
 
674
                self.log_message_raw(("bold",
 
675
                                      "  ".
 
676
                                      join(("q: Quit",
 
677
                                            "?: Help",
 
678
                                            "l: Log window toggle",
 
679
                                            "TAB: Switch window",
 
680
                                            "w: Wrap (log lines)",
 
681
                                            "v: Toggle verbose log",
 
682
                                            ))))
 
683
                self.log_message_raw(("bold",
 
684
                                      "  "
 
685
                                      .join(("Clients:",
 
686
                                             "+: Enable",
 
687
                                             "-: Disable",
 
688
                                             "R: Remove",
 
689
                                             "s: Start new checker",
 
690
                                             "S: Stop checker",
 
691
                                             "C: Checker OK",
 
692
                                             "a: Approve",
 
693
                                             "d: Deny"))))
434
694
                self.refresh()
435
 
            elif key == u"tab":
 
695
            elif key == "tab":
436
696
                if self.topwidget.get_focus() is self.logbox:
437
697
                    self.topwidget.set_focus(0)
438
698
                else:
439
699
                    self.topwidget.set_focus(self.logbox)
440
700
                self.refresh()
441
 
            elif (key == u"end" or key == u"meta >" or key == u"G"
442
 
                  or key == u">"):
443
 
                pass            # xxx end-of-buffer
444
 
            elif (key == u"home" or key == u"meta <" or key == u"g"
445
 
                  or key == u"<"):
446
 
                pass            # xxx beginning-of-buffer
447
 
            elif key == u"ctrl e" or key == u"$":
448
 
                pass            # xxx move-end-of-line
449
 
            elif key == u"ctrl a" or key == u"^":
450
 
                pass            # xxx move-beginning-of-line
451
 
            elif key == u"ctrl b" or key == u"meta (" or key == u"h":
452
 
                pass            # xxx left
453
 
            elif key == u"ctrl f" or key == u"meta )" or key == u"l":
454
 
                pass            # xxx right
455
 
            elif key == u"a":
456
 
                pass            # scroll up log
457
 
            elif key == u"z":
458
 
                pass            # scroll down log
 
701
            elif key == "v":
 
702
                if self.log_level == 0:
 
703
                    self.log_level = 1
 
704
                    self.log_message("Verbose mode: Off")
 
705
                else:
 
706
                    self.log_level = 0
 
707
                    self.log_message("Verbose mode: On")
 
708
            #elif (key == "end" or key == "meta >" or key == "G"
 
709
            #      or key == ">"):
 
710
            #    pass            # xxx end-of-buffer
 
711
            #elif (key == "home" or key == "meta <" or key == "g"
 
712
            #      or key == "<"):
 
713
            #    pass            # xxx beginning-of-buffer
 
714
            #elif key == "ctrl e" or key == "$":
 
715
            #    pass            # xxx move-end-of-line
 
716
            #elif key == "ctrl a" or key == "^":
 
717
            #    pass            # xxx move-beginning-of-line
 
718
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
719
            #    pass            # xxx left
 
720
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
721
            #    pass            # xxx right
 
722
            #elif key == "a":
 
723
            #    pass            # scroll up log
 
724
            #elif key == "z":
 
725
            #    pass            # scroll down log
459
726
            elif self.topwidget.selectable():
460
727
                self.topwidget.keypress(self.size, key)
461
728
                self.refresh()
464
731
ui = UserInterface()
465
732
try:
466
733
    ui.run()
467
 
except:
 
734
except KeyboardInterrupt:
 
735
    ui.screen.stop()
 
736
except Exception as e:
 
737
    ui.log_message(str(e))
468
738
    ui.screen.stop()
469
739
    raise