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  • Committer: Teddy Hogeborn
  • Date: 2015-07-20 03:03:33 UTC
  • Revision ID: teddy@recompile.se-20150720030333-203m2aeblypcsfte
Bug fix for GnuTLS 3: be compatible with old 2048-bit DSA keys.

The mandos-keygen program in Mandos version 1.6.0 and older generated
2048-bit DSA keys, and when GnuTLS uses these it has trouble
connecting using the Mandos default priority string.  This was
previously fixed in Mandos 1.6.2, but the bug reappeared when using
GnuTLS 3, so the default priority string has to change again; this
time also the Mandos client has to change its default, so now the
server and the client should use the same default priority string:

SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA:+SIGN-DSA-SHA256

* mandos (main/server_defaults): Changed default priority string.
* mandos-options.xml (/section/para[id="priority_compat"]): Removed.
  (/section/para[id="priority"]): Changed default priority string.
* mandos.conf ([DEFAULT]/priority): - '' -
* mandos.conf.xml (OPTIONS/priority): Refer to the id "priority"
                                      instead of "priority_compat".
* mandos.xml (OPTIONS/--priority): - '' -
* plugins.d/mandos-client.c (main): Changed default priority string.

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Lines of Context:
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 © 2009-2015 Teddy Hogeborn
 
7
# Copyright © 2009-2015 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
34
import os
8
 
import signal
9
35
 
10
36
import datetime
11
37
 
13
39
import urwid
14
40
 
15
41
from dbus.mainloop.glib import DBusGMainLoop
16
 
import gobject
 
42
try:
 
43
    import gobject
 
44
except ImportError:
 
45
    from gi.repository import GObject as gobject
17
46
 
18
47
import dbus
19
48
 
20
 
import UserList
21
 
 
22
49
import locale
23
50
 
24
 
locale.setlocale(locale.LC_ALL, u'')
 
51
if sys.version_info.major == 2:
 
52
    str = unicode
 
53
 
 
54
locale.setlocale(locale.LC_ALL, '')
25
55
 
26
56
import logging
27
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
28
58
 
29
59
# Some useful constants
30
 
domain = 'se.bsnet.fukt'
 
60
domain = 'se.recompile'
31
61
server_interface = domain + '.Mandos'
32
62
client_interface = domain + '.Mandos.Client'
33
 
version = "1.0.15"
34
 
 
35
 
# Always run in monochrome mode
36
 
urwid.curses_display.curses.has_colors = lambda : False
37
 
 
38
 
# Urwid doesn't support blinking, but we want it.  Since we have no
39
 
# use for underline on its own, we make underline also always blink.
40
 
urwid.curses_display.curses.A_UNDERLINE |= (
41
 
    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
42
80
 
43
81
class MandosClientPropertyCache(object):
44
82
    """This wraps a Mandos Client D-Bus proxy object, caches the
45
83
    properties and calls a hook function when any of them are
46
84
    changed.
47
85
    """
48
 
    def __init__(self, proxy_object=None, *args, **kwargs):
 
86
    def __init__(self, proxy_object=None, properties=None, **kwargs):
49
87
        self.proxy = proxy_object # Mandos Client proxy object
50
 
        
51
 
        self.properties = dict()
52
 
        self.proxy.connect_to_signal(u"PropertyChanged",
53
 
                                     self.property_changed,
54
 
                                     client_interface,
55
 
                                     byte_arrays=True)
56
 
        
57
 
        self.properties.update(
58
 
            self.proxy.GetAll(client_interface,
59
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
60
 
        super(MandosClientPropertyCache, self).__init__(
61
 
            *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)
62
102
    
63
 
    def property_changed(self, property=None, value=None):
64
 
        """This is called whenever we get a PropertyChanged signal
65
 
        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.
66
106
        """
67
107
        # Update properties dict with new value
68
 
        self.properties[property] = value
 
108
        self.properties.update(properties)
 
109
    
 
110
    def delete(self):
 
111
        self.property_changed_match.remove()
69
112
 
70
113
 
71
114
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
73
116
    """
74
117
    
75
118
    def __init__(self, server_proxy_object=None, update_hook=None,
76
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
119
                 delete_hook=None, logger=None, **kwargs):
77
120
        # Called on update
78
121
        self.update_hook = update_hook
79
122
        # Called on delete
83
126
        # Logger
84
127
        self.logger = logger
85
128
        
 
129
        self._update_timer_callback_tag = None
 
130
        
86
131
        # The widget shown normally
87
 
        self._text_widget = urwid.Text(u"")
 
132
        self._text_widget = urwid.Text("")
88
133
        # The widget shown when we have focus
89
 
        self._focus_text_widget = urwid.Text(u"")
90
 
        super(MandosClientWidget, self).__init__(
91
 
            update_hook=update_hook, delete_hook=delete_hook,
92
 
            *args, **kwargs)
 
134
        self._focus_text_widget = urwid.Text("")
 
135
        super(MandosClientWidget, self).__init__(**kwargs)
93
136
        self.update()
94
137
        self.opened = False
95
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
96
 
                                     self.checker_completed,
97
 
                                     client_interface,
98
 
                                     byte_arrays=True)
99
 
        self.proxy.connect_to_signal(u"CheckerStarted",
100
 
                                     self.checker_started,
101
 
                                     client_interface,
102
 
                                     byte_arrays=True)
103
 
        self.proxy.connect_to_signal(u"GotSecret",
104
 
                                     self.got_secret,
105
 
                                     client_interface,
106
 
                                     byte_arrays=True)
107
 
        self.proxy.connect_to_signal(u"NeedApproval",
108
 
                                     self.need_approval,
109
 
                                     client_interface,
110
 
                                     byte_arrays=True)
111
 
        self.proxy.connect_to_signal(u"Rejected",
112
 
                                     self.rejected,
113
 
                                     client_interface,
114
 
                                     byte_arrays=True)
115
 
    
116
 
    def checker_completed(self, exitstatus, condition, command):
 
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, signal, command):
117
177
        if exitstatus == 0:
118
 
            #self.logger(u'Checker for client %s (command "%s")'
119
 
            #            u' was successful'
120
 
            #            % (self.properties[u"name"], command))
121
 
            return
122
 
        if os.WIFEXITED(condition):
123
 
            self.logger(u'Checker for client %s (command "%s")'
124
 
                        u' failed with exit code %s'
125
 
                        % (self.properties[u"name"], command,
126
 
                           os.WEXITSTATUS(condition)))
127
 
            return
128
 
        if os.WIFSIGNALED(condition):
129
 
            self.logger(u'Checker for client %s (command "%s")'
130
 
                        u' was killed by signal %s'
131
 
                        % (self.properties[u"name"], command,
132
 
                           os.WTERMSIG(condition)))
133
 
            return
134
 
        if os.WCOREDUMP(condition):
135
 
            self.logger(u'Checker for client %s (command "%s")'
136
 
                        u' dumped core'
137
 
                        % (self.properties[u"name"], command))
138
 
        self.logger(u'Checker for client %s completed mysteriously')
 
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 exitstatus >= 0:
 
185
            self.logger('Checker for client {} (command "{}") failed'
 
186
                        ' with exit code {}'
 
187
                        .format(self.properties["Name"], command,
 
188
                                exitstatus))
 
189
        elif signal != 0:
 
190
            self.logger('Checker for client {} (command "{}") was'
 
191
                        ' killed by signal {}'
 
192
                        .format(self.properties["Name"], command,
 
193
                                signal))
 
194
        else:
 
195
            self.logger('Checker for client {} completed'
 
196
                        ' mysteriously'
 
197
                        .format(self.properties["Name"]))
 
198
        self.update()
139
199
    
140
200
    def checker_started(self, command):
141
 
        #self.logger(u'Client %s started checker "%s"'
142
 
        #            % (self.properties[u"name"], unicode(command)))
143
 
        pass
 
201
        """Server signals that a checker started."""
 
202
        self.logger('Client {} started checker "{}"'
 
203
                    .format(self.properties["Name"],
 
204
                            command), level=0)
144
205
    
145
206
    def got_secret(self):
146
 
        self.logger(u'Client %s received its secret'
147
 
                    % self.properties[u"name"])
 
207
        self.logger('Client {} received its secret'
 
208
                    .format(self.properties["Name"]))
148
209
    
149
210
    def need_approval(self, timeout, default):
150
211
        if not default:
151
 
            message = u'Client %s needs approval within %s seconds'
 
212
            message = 'Client {} needs approval within {} seconds'
152
213
        else:
153
 
            message = u'Client %s will get its secret in %s seconds'
154
 
        self.logger(message
155
 
                    % (self.properties[u"name"], timeout/1000))
 
214
            message = 'Client {} will get its secret in {} seconds'
 
215
        self.logger(message.format(self.properties["Name"],
 
216
                                   timeout/1000))
156
217
    
157
218
    def rejected(self, reason):
158
 
        self.logger(u'Client %s was rejected; reason: %s'
159
 
                    % (self.properties[u"name"], reason))
 
219
        self.logger('Client {} was rejected; reason: {}'
 
220
                    .format(self.properties["Name"], reason))
160
221
    
161
222
    def selectable(self):
162
223
        """Make this a "selectable" widget.
163
224
        This overrides the method from urwid.FlowWidget."""
164
225
        return True
165
226
    
166
 
    def rows(self, (maxcol,), focus=False):
 
227
    def rows(self, maxcolrow, focus=False):
167
228
        """How many rows this widget will occupy might depend on
168
229
        whether we have focus or not.
169
230
        This overrides the method from urwid.FlowWidget"""
170
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
231
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
171
232
    
172
233
    def current_widget(self, focus=False):
173
234
        if focus or self.opened:
177
238
    def update(self):
178
239
        "Called when what is visible on the screen should be updated."
179
240
        # How to add standout mode to a style
180
 
        with_standout = { u"normal": u"standout",
181
 
                          u"bold": u"bold-standout",
182
 
                          u"underline-blink":
183
 
                              u"underline-blink-standout",
184
 
                          u"bold-underline-blink":
185
 
                              u"bold-underline-blink-standout",
 
241
        with_standout = { "normal": "standout",
 
242
                          "bold": "bold-standout",
 
243
                          "underline-blink":
 
244
                              "underline-blink-standout",
 
245
                          "bold-underline-blink":
 
246
                              "bold-underline-blink-standout",
186
247
                          }
187
248
        
188
249
        # Rebuild focus and non-focus widgets using current properties
189
 
        self._text = (u'%(name)s: %(enabled)s'
190
 
                      % { u"name": self.properties[u"name"],
191
 
                          u"enabled":
192
 
                              (u"enabled"
193
 
                               if self.properties[u"enabled"]
194
 
                               else u"DISABLED")})
 
250
        
 
251
        # Base part of a client. Name!
 
252
        base = '{name}: '.format(name=self.properties["Name"])
 
253
        if not self.properties["Enabled"]:
 
254
            message = "DISABLED"
 
255
            self.using_timer(False)
 
256
        elif self.properties["ApprovalPending"]:
 
257
            timeout = datetime.timedelta(milliseconds
 
258
                                         = self.properties
 
259
                                         ["ApprovalDelay"])
 
260
            last_approval_request = isoformat_to_datetime(
 
261
                self.properties["LastApprovalRequest"])
 
262
            if last_approval_request is not None:
 
263
                timer = max(timeout - (datetime.datetime.utcnow()
 
264
                                       - last_approval_request),
 
265
                            datetime.timedelta())
 
266
            else:
 
267
                timer = datetime.timedelta()
 
268
            if self.properties["ApprovedByDefault"]:
 
269
                message = "Approval in {}. (d)eny?"
 
270
            else:
 
271
                message = "Denial in {}. (a)pprove?"
 
272
            message = message.format(str(timer).rsplit(".", 1)[0])
 
273
            self.using_timer(True)
 
274
        elif self.properties["LastCheckerStatus"] != 0:
 
275
            # When checker has failed, show timer until client expires
 
276
            expires = self.properties["Expires"]
 
277
            if expires == "":
 
278
                timer = datetime.timedelta(0)
 
279
            else:
 
280
                expires = (datetime.datetime.strptime
 
281
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
282
                timer = max(expires - datetime.datetime.utcnow(),
 
283
                            datetime.timedelta())
 
284
            message = ('A checker has failed! Time until client'
 
285
                       ' gets disabled: {}'
 
286
                       .format(str(timer).rsplit(".", 1)[0]))
 
287
            self.using_timer(True)
 
288
        else:
 
289
            message = "enabled"
 
290
            self.using_timer(False)
 
291
        self._text = "{}{}".format(base, message)
 
292
        
195
293
        if not urwid.supports_unicode():
196
294
            self._text = self._text.encode("ascii", "replace")
197
 
        textlist = [(u"normal", self._text)]
 
295
        textlist = [("normal", self._text)]
198
296
        self._text_widget.set_text(textlist)
199
297
        self._focus_text_widget.set_text([(with_standout[text[0]],
200
298
                                           text[1])
208
306
        if self.update_hook is not None:
209
307
            self.update_hook()
210
308
    
211
 
    def delete(self):
 
309
    def update_timer(self):
 
310
        """called by gobject. Will indefinitely loop until
 
311
        gobject.source_remove() on tag is called"""
 
312
        self.update()
 
313
        return True             # Keep calling this
 
314
    
 
315
    def delete(self, **kwargs):
 
316
        if self._update_timer_callback_tag is not None:
 
317
            gobject.source_remove(self._update_timer_callback_tag)
 
318
            self._update_timer_callback_tag = None
 
319
        for match in self.match_objects:
 
320
            match.remove()
 
321
        self.match_objects = ()
212
322
        if self.delete_hook is not None:
213
323
            self.delete_hook(self)
 
324
        return super(MandosClientWidget, self).delete(**kwargs)
214
325
    
215
 
    def render(self, (maxcol,), focus=False):
 
326
    def render(self, maxcolrow, focus=False):
216
327
        """Render differently if we have focus.
217
328
        This overrides the method from urwid.FlowWidget"""
218
 
        return self.current_widget(focus).render((maxcol,),
 
329
        return self.current_widget(focus).render(maxcolrow,
219
330
                                                 focus=focus)
220
331
    
221
 
    def keypress(self, (maxcol,), key):
 
332
    def keypress(self, maxcolrow, key):
222
333
        """Handle keys.
223
334
        This overrides the method from urwid.FlowWidget"""
224
 
        if key == u"e" or key == u"+":
225
 
            self.proxy.Enable()
226
 
        elif key == u"d" or key == u"-":
227
 
            self.proxy.Disable()
228
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
335
        if key == "+":
 
336
            self.proxy.Enable(dbus_interface = client_interface,
 
337
                              ignore_reply=True)
 
338
        elif key == "-":
 
339
            self.proxy.Disable(dbus_interface = client_interface,
 
340
                               ignore_reply=True)
 
341
        elif key == "a":
 
342
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
343
                               dbus_interface = client_interface,
 
344
                               ignore_reply=True)
 
345
        elif key == "d":
 
346
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
347
                                  dbus_interface = client_interface,
 
348
                               ignore_reply=True)
 
349
        elif key == "R" or key == "_" or key == "ctrl k":
229
350
            self.server_proxy_object.RemoveClient(self.proxy
230
 
                                                  .object_path)
231
 
        elif key == u"s":
232
 
            self.proxy.StartChecker()
233
 
        elif key == u"S":
234
 
            self.proxy.StopChecker()
235
 
        elif key == u"C":
236
 
            self.proxy.CheckedOK()
 
351
                                                  .object_path,
 
352
                                                  ignore_reply=True)
 
353
        elif key == "s":
 
354
            self.proxy.StartChecker(dbus_interface = client_interface,
 
355
                                    ignore_reply=True)
 
356
        elif key == "S":
 
357
            self.proxy.StopChecker(dbus_interface = client_interface,
 
358
                                   ignore_reply=True)
 
359
        elif key == "C":
 
360
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
361
                                 ignore_reply=True)
237
362
        # xxx
238
 
#         elif key == u"p" or key == "=":
 
363
#         elif key == "p" or key == "=":
239
364
#             self.proxy.pause()
240
 
#         elif key == u"u" or key == ":":
 
365
#         elif key == "u" or key == ":":
241
366
#             self.proxy.unpause()
242
 
#         elif key == u"RET":
 
367
#         elif key == "RET":
243
368
#             self.open()
244
 
        elif key == u"+":
245
 
            self.proxy.Approve(True)
246
 
        elif key == u"-":
247
 
            self.proxy.Approve(False)
248
369
        else:
249
370
            return key
250
371
    
251
 
    def property_changed(self, property=None, value=None,
252
 
                         *args, **kwargs):
253
 
        """Call self.update() if old value is not new value.
 
372
    def properties_changed(self, interface, properties, invalidated):
 
373
        """Call self.update() if any properties changed.
254
374
        This overrides the method from MandosClientPropertyCache"""
255
 
        property_name = unicode(property)
256
 
        old_value = self.properties.get(property_name)
257
 
        super(MandosClientWidget, self).property_changed(
258
 
            property=property, value=value, *args, **kwargs)
259
 
        if self.properties.get(property_name) != old_value:
 
375
        old_values = { key: self.properties.get(key)
 
376
                       for key in properties.keys() }
 
377
        super(MandosClientWidget, self).properties_changed(
 
378
            interface, properties, invalidated)
 
379
        if any(old_values[key] != self.properties.get(key)
 
380
               for key in old_values):
260
381
            self.update()
261
382
 
262
383
 
265
386
    "down" key presses, thus not allowing any containing widgets to
266
387
    use them as an excuse to shift focus away from this widget.
267
388
    """
268
 
    def keypress(self, (maxcol, maxrow), key):
269
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
270
 
        if ret in (u"up", u"down"):
 
389
    def keypress(self, *args, **kwargs):
 
390
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
391
        if ret in ("up", "down"):
271
392
            return
272
393
        return ret
273
394
 
276
397
    """This is the entire user interface - the whole screen
277
398
    with boxes, lists of client widgets, etc.
278
399
    """
279
 
    def __init__(self, max_log_length=1000):
 
400
    def __init__(self, max_log_length=1000, log_level=1):
280
401
        DBusGMainLoop(set_as_default=True)
281
402
        
282
403
        self.screen = urwid.curses_display.Screen()
283
404
        
284
405
        self.screen.register_palette((
285
 
                (u"normal",
286
 
                 u"default", u"default", None),
287
 
                (u"bold",
288
 
                 u"default", u"default", u"bold"),
289
 
                (u"underline-blink",
290
 
                 u"default", u"default", u"underline"),
291
 
                (u"standout",
292
 
                 u"default", u"default", u"standout"),
293
 
                (u"bold-underline-blink",
294
 
                 u"default", u"default", (u"bold", u"underline")),
295
 
                (u"bold-standout",
296
 
                 u"default", u"default", (u"bold", u"standout")),
297
 
                (u"underline-blink-standout",
298
 
                 u"default", u"default", (u"underline", u"standout")),
299
 
                (u"bold-underline-blink-standout",
300
 
                 u"default", u"default", (u"bold", u"underline",
301
 
                                          u"standout")),
 
406
                ("normal",
 
407
                 "default", "default", None),
 
408
                ("bold",
 
409
                 "bold", "default", "bold"),
 
410
                ("underline-blink",
 
411
                 "underline,blink", "default", "underline,blink"),
 
412
                ("standout",
 
413
                 "standout", "default", "standout"),
 
414
                ("bold-underline-blink",
 
415
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
416
                ("bold-standout",
 
417
                 "bold,standout", "default", "bold,standout"),
 
418
                ("underline-blink-standout",
 
419
                 "underline,blink,standout", "default",
 
420
                 "underline,blink,standout"),
 
421
                ("bold-underline-blink-standout",
 
422
                 "bold,underline,blink,standout", "default",
 
423
                 "bold,underline,blink,standout"),
302
424
                ))
303
425
        
304
426
        if urwid.supports_unicode():
305
 
            self.divider = u"─" # \u2500
306
 
            #self.divider = u"━" # \u2501
 
427
            self.divider = "─" # \u2500
 
428
            #self.divider = "━" # \u2501
307
429
        else:
308
 
            #self.divider = u"-" # \u002d
309
 
            self.divider = u"_" # \u005f
 
430
            #self.divider = "-" # \u002d
 
431
            self.divider = "_" # \u005f
310
432
        
311
433
        self.screen.start()
312
434
        
319
441
        self.log = []
320
442
        self.max_log_length = max_log_length
321
443
        
 
444
        self.log_level = log_level
 
445
        
322
446
        # We keep a reference to the log widget so we can remove it
323
447
        # from the ListWalker without it getting destroyed
324
448
        self.logbox = ConstrainedListBox(self.log)
326
450
        # This keeps track of whether self.uilist currently has
327
451
        # self.logbox in it or not
328
452
        self.log_visible = True
329
 
        self.log_wrap = u"any"
 
453
        self.log_wrap = "any"
330
454
        
331
455
        self.rebuild()
332
 
        self.log_message_raw((u"bold",
333
 
                              u"Mandos Monitor version " + version))
334
 
        self.log_message_raw((u"bold",
335
 
                              u"q: Quit  ?: Help"))
 
456
        self.log_message_raw(("bold",
 
457
                              "Mandos Monitor version " + version))
 
458
        self.log_message_raw(("bold",
 
459
                              "q: Quit  ?: Help"))
336
460
        
337
461
        self.busname = domain + '.Mandos'
338
462
        self.main_loop = gobject.MainLoop()
339
 
        self.bus = dbus.SystemBus()
340
 
        mandos_dbus_objc = self.bus.get_object(
341
 
            self.busname, u"/", follow_name_owner_changes=True)
342
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
343
 
                                          dbus_interface
344
 
                                          = server_interface)
345
 
        try:
346
 
            mandos_clients = (self.mandos_serv
347
 
                              .GetAllClientsWithProperties())
348
 
        except dbus.exceptions.DBusException:
349
 
            mandos_clients = dbus.Dictionary()
350
 
        
351
 
        (self.mandos_serv
352
 
         .connect_to_signal(u"ClientRemoved",
353
 
                            self.find_and_remove_client,
354
 
                            dbus_interface=server_interface,
355
 
                            byte_arrays=True))
356
 
        (self.mandos_serv
357
 
         .connect_to_signal(u"ClientAdded",
358
 
                            self.add_new_client,
359
 
                            dbus_interface=server_interface,
360
 
                            byte_arrays=True))
361
 
        (self.mandos_serv
362
 
         .connect_to_signal(u"ClientNotFound",
363
 
                            self.client_not_found,
364
 
                            dbus_interface=server_interface,
365
 
                            byte_arrays=True))
366
 
        for path, client in mandos_clients.iteritems():
367
 
            client_proxy_object = self.bus.get_object(self.busname,
368
 
                                                      path)
369
 
            self.add_client(MandosClientWidget(server_proxy_object
370
 
                                               =self.mandos_serv,
371
 
                                               proxy_object
372
 
                                               =client_proxy_object,
373
 
                                               properties=client,
374
 
                                               update_hook
375
 
                                               =self.refresh,
376
 
                                               delete_hook
377
 
                                               =self.remove_client,
378
 
                                               logger
379
 
                                               =self.log_message),
380
 
                            path=path)
381
463
    
382
464
    def client_not_found(self, fingerprint, address):
383
 
        self.log_message((u"Client with address %s and fingerprint %s"
384
 
                          u" could not be found" % (address,
385
 
                                                    fingerprint)))
 
465
        self.log_message("Client with address {} and fingerprint {}"
 
466
                         " could not be found"
 
467
                         .format(address, fingerprint))
386
468
    
387
469
    def rebuild(self):
388
470
        """This rebuilds the User Interface.
389
471
        Call this when the widget layout needs to change"""
390
472
        self.uilist = []
391
473
        #self.uilist.append(urwid.ListBox(self.clients))
392
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
474
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
475
                                                          clients),
393
476
                                       #header=urwid.Divider(),
394
477
                                       header=None,
395
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
478
                                       footer=
 
479
                                       urwid.Divider(div_char=
 
480
                                                     self.divider)))
396
481
        if self.log_visible:
397
482
            self.uilist.append(self.logbox)
398
 
            pass
399
483
        self.topwidget = urwid.Pile(self.uilist)
400
484
    
401
 
    def log_message(self, message):
 
485
    def log_message(self, message, level=1):
 
486
        """Log message formatted with timestamp"""
 
487
        if level < self.log_level:
 
488
            return
402
489
        timestamp = datetime.datetime.now().isoformat()
403
 
        self.log_message_raw(timestamp + u": " + message)
 
490
        self.log_message_raw("{}: {}".format(timestamp, message),
 
491
                             level=level)
404
492
    
405
 
    def log_message_raw(self, markup):
 
493
    def log_message_raw(self, markup, level=1):
406
494
        """Add a log message to the log buffer."""
 
495
        if level < self.log_level:
 
496
            return
407
497
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
408
498
        if (self.max_log_length
409
499
            and len(self.log) > self.max_log_length):
410
500
            del self.log[0:len(self.log)-self.max_log_length-1]
411
501
        self.logbox.set_focus(len(self.logbox.body.contents),
412
 
                              coming_from=u"above")
 
502
                              coming_from="above")
413
503
        self.refresh()
414
504
    
415
505
    def toggle_log_display(self):
416
506
        """Toggle visibility of the log buffer."""
417
507
        self.log_visible = not self.log_visible
418
508
        self.rebuild()
419
 
        self.log_message(u"Log visibility changed to: "
420
 
                         + unicode(self.log_visible))
 
509
        self.log_message("Log visibility changed to: {}"
 
510
                         .format(self.log_visible), level=0)
421
511
    
422
512
    def change_log_display(self):
423
513
        """Change type of log display.
424
514
        Currently, this toggles wrapping of text lines."""
425
 
        if self.log_wrap == u"clip":
426
 
            self.log_wrap = u"any"
 
515
        if self.log_wrap == "clip":
 
516
            self.log_wrap = "any"
427
517
        else:
428
 
            self.log_wrap = u"clip"
 
518
            self.log_wrap = "clip"
429
519
        for textwidget in self.log:
430
520
            textwidget.set_wrap_mode(self.log_wrap)
431
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
521
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
522
                         level=0)
432
523
    
433
524
    def find_and_remove_client(self, path, name):
434
 
        """Find an client from its object path and remove it.
 
525
        """Find a client by its object path and remove it.
435
526
        
436
527
        This is connected to the ClientRemoved signal from the
437
528
        Mandos server object."""
439
530
            client = self.clients_dict[path]
440
531
        except KeyError:
441
532
            # not found?
 
533
            self.log_message("Unknown client {!r} ({!r}) removed"
 
534
                             .format(name, path))
442
535
            return
443
 
        self.remove_client(client, path)
 
536
        client.delete()
444
537
    
445
538
    def add_new_client(self, path):
446
539
        client_proxy_object = self.bus.get_object(self.busname, path)
461
554
        if path is None:
462
555
            path = client.proxy.object_path
463
556
        self.clients_dict[path] = client
464
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
557
        self.clients.sort(key=lambda c: c.properties["Name"])
465
558
        self.refresh()
466
559
    
467
560
    def remove_client(self, client, path=None):
469
562
        if path is None:
470
563
            path = client.proxy.object_path
471
564
        del self.clients_dict[path]
472
 
        if not self.clients_dict:
473
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
474
 
            # is completely emptied, we need to recreate it.
475
 
            self.clients = urwid.SimpleListWalker([])
476
 
            self.rebuild()
477
565
        self.refresh()
478
566
    
479
567
    def refresh(self):
483
571
    
484
572
    def run(self):
485
573
        """Start the main loop and exit when it's done."""
 
574
        self.bus = dbus.SystemBus()
 
575
        mandos_dbus_objc = self.bus.get_object(
 
576
            self.busname, "/", follow_name_owner_changes=True)
 
577
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
578
                                          dbus_interface
 
579
                                          = server_interface)
 
580
        try:
 
581
            mandos_clients = (self.mandos_serv
 
582
                              .GetAllClientsWithProperties())
 
583
            if not mandos_clients:
 
584
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
585
        except dbus.exceptions.DBusException:
 
586
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
587
            mandos_clients = dbus.Dictionary()
 
588
        
 
589
        (self.mandos_serv
 
590
         .connect_to_signal("ClientRemoved",
 
591
                            self.find_and_remove_client,
 
592
                            dbus_interface=server_interface,
 
593
                            byte_arrays=True))
 
594
        (self.mandos_serv
 
595
         .connect_to_signal("ClientAdded",
 
596
                            self.add_new_client,
 
597
                            dbus_interface=server_interface,
 
598
                            byte_arrays=True))
 
599
        (self.mandos_serv
 
600
         .connect_to_signal("ClientNotFound",
 
601
                            self.client_not_found,
 
602
                            dbus_interface=server_interface,
 
603
                            byte_arrays=True))
 
604
        for path, client in mandos_clients.items():
 
605
            client_proxy_object = self.bus.get_object(self.busname,
 
606
                                                      path)
 
607
            self.add_client(MandosClientWidget(server_proxy_object
 
608
                                               =self.mandos_serv,
 
609
                                               proxy_object
 
610
                                               =client_proxy_object,
 
611
                                               properties=client,
 
612
                                               update_hook
 
613
                                               =self.refresh,
 
614
                                               delete_hook
 
615
                                               =self.remove_client,
 
616
                                               logger
 
617
                                               =self.log_message),
 
618
                            path=path)
 
619
        
486
620
        self.refresh()
487
621
        self._input_callback_tag = (gobject.io_add_watch
488
622
                                    (sys.stdin.fileno(),
498
632
    
499
633
    def process_input(self, source, condition):
500
634
        keys = self.screen.get_input()
501
 
        translations = { u"ctrl n": u"down",      # Emacs
502
 
                         u"ctrl p": u"up",        # Emacs
503
 
                         u"ctrl v": u"page down", # Emacs
504
 
                         u"meta v": u"page up",   # Emacs
505
 
                         u" ": u"page down",      # less
506
 
                         u"f": u"page down",      # less
507
 
                         u"b": u"page up",        # less
508
 
                         u"j": u"down",           # vi
509
 
                         u"k": u"up",             # vi
 
635
        translations = { "ctrl n": "down",      # Emacs
 
636
                         "ctrl p": "up",        # Emacs
 
637
                         "ctrl v": "page down", # Emacs
 
638
                         "meta v": "page up",   # Emacs
 
639
                         " ": "page down",      # less
 
640
                         "f": "page down",      # less
 
641
                         "b": "page up",        # less
 
642
                         "j": "down",           # vi
 
643
                         "k": "up",             # vi
510
644
                         }
511
645
        for key in keys:
512
646
            try:
514
648
            except KeyError:    # :-)
515
649
                pass
516
650
            
517
 
            if key == u"q" or key == u"Q":
 
651
            if key == "q" or key == "Q":
518
652
                self.stop()
519
653
                break
520
 
            elif key == u"window resize":
 
654
            elif key == "window resize":
521
655
                self.size = self.screen.get_cols_rows()
522
656
                self.refresh()
523
 
            elif key == u"\f":  # Ctrl-L
 
657
            elif key == "ctrl l":
 
658
                self.screen.clear()
524
659
                self.refresh()
525
 
            elif key == u"l" or key == u"D":
 
660
            elif key == "l" or key == "D":
526
661
                self.toggle_log_display()
527
662
                self.refresh()
528
 
            elif key == u"w" or key == u"i":
 
663
            elif key == "w" or key == "i":
529
664
                self.change_log_display()
530
665
                self.refresh()
531
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
666
            elif key == "?" or key == "f1" or key == "esc":
532
667
                if not self.log_visible:
533
668
                    self.log_visible = True
534
669
                    self.rebuild()
535
 
                self.log_message_raw((u"bold",
536
 
                                      u"  ".
537
 
                                      join((u"q: Quit",
538
 
                                            u"?: Help",
539
 
                                            u"l: Log window toggle",
540
 
                                            u"TAB: Switch window",
541
 
                                            u"w: Wrap (log)"))))
542
 
                self.log_message_raw((u"bold",
543
 
                                      u"  "
544
 
                                      .join((u"Clients:",
545
 
                                             u"e: Enable",
546
 
                                             u"d: Disable",
547
 
                                             u"r: Remove",
548
 
                                             u"s: Start new checker",
549
 
                                             u"S: Stop checker",
550
 
                                             u"C: Checker OK"))))
 
670
                self.log_message_raw(("bold",
 
671
                                      "  ".
 
672
                                      join(("q: Quit",
 
673
                                            "?: Help",
 
674
                                            "l: Log window toggle",
 
675
                                            "TAB: Switch window",
 
676
                                            "w: Wrap (log lines)",
 
677
                                            "v: Toggle verbose log",
 
678
                                            ))))
 
679
                self.log_message_raw(("bold",
 
680
                                      "  "
 
681
                                      .join(("Clients:",
 
682
                                             "+: Enable",
 
683
                                             "-: Disable",
 
684
                                             "R: Remove",
 
685
                                             "s: Start new checker",
 
686
                                             "S: Stop checker",
 
687
                                             "C: Checker OK",
 
688
                                             "a: Approve",
 
689
                                             "d: Deny"))))
551
690
                self.refresh()
552
 
            elif key == u"tab":
 
691
            elif key == "tab":
553
692
                if self.topwidget.get_focus() is self.logbox:
554
693
                    self.topwidget.set_focus(0)
555
694
                else:
556
695
                    self.topwidget.set_focus(self.logbox)
557
696
                self.refresh()
558
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
559
 
            #      or key == u">"):
 
697
            elif key == "v":
 
698
                if self.log_level == 0:
 
699
                    self.log_level = 1
 
700
                    self.log_message("Verbose mode: Off")
 
701
                else:
 
702
                    self.log_level = 0
 
703
                    self.log_message("Verbose mode: On")
 
704
            #elif (key == "end" or key == "meta >" or key == "G"
 
705
            #      or key == ">"):
560
706
            #    pass            # xxx end-of-buffer
561
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
562
 
            #      or key == u"<"):
 
707
            #elif (key == "home" or key == "meta <" or key == "g"
 
708
            #      or key == "<"):
563
709
            #    pass            # xxx beginning-of-buffer
564
 
            #elif key == u"ctrl e" or key == u"$":
 
710
            #elif key == "ctrl e" or key == "$":
565
711
            #    pass            # xxx move-end-of-line
566
 
            #elif key == u"ctrl a" or key == u"^":
 
712
            #elif key == "ctrl a" or key == "^":
567
713
            #    pass            # xxx move-beginning-of-line
568
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
714
            #elif key == "ctrl b" or key == "meta (" or key == "h":
569
715
            #    pass            # xxx left
570
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
716
            #elif key == "ctrl f" or key == "meta )" or key == "l":
571
717
            #    pass            # xxx right
572
 
            #elif key == u"a":
 
718
            #elif key == "a":
573
719
            #    pass            # scroll up log
574
 
            #elif key == u"z":
 
720
            #elif key == "z":
575
721
            #    pass            # scroll down log
576
722
            elif self.topwidget.selectable():
577
723
                self.topwidget.keypress(self.size, key)
581
727
ui = UserInterface()
582
728
try:
583
729
    ui.run()
584
 
except Exception, e:
585
 
    ui.log_message(unicode(e))
 
730
except KeyboardInterrupt:
 
731
    ui.screen.stop()
 
732
except Exception as e:
 
733
    ui.log_message(str(e))
586
734
    ui.screen.stop()
587
735
    raise