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  • Committer: Teddy Hogeborn
  • Date: 2015-07-08 21:18:49 UTC
  • Revision ID: teddy@recompile.se-20150708211849-scisutuofnxumqc7
mandos-client: Add --dh-params FILE option.

* plugins.d/mandos-client.c: Added --dh-params FILE option.
  (init_gnutls_global): New "dhparamsfilename" argument.  All callers
                        changed.  Read and use Diffie-Hellman
                        parameters from it.  Bug fix:  check for error
                        when opening seckeyfile for the second time.
  (init_gnutls_session): Remove unnecessary call to
                         gnutls_dh_set_prime_bits();
  (main): New variable "dh_params_file".
  (main/argp_options): Added "--dh-params" option.
  (main/parse_opt): - '' -
* plugins.d/mandos-client.xml (SYNOPSIS): Add --dh-params option.
  (OPTIONS): Document --dh-params option and document that the
             --dh-bits options is potentially overridden by the
             --dh-params option.

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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
 
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)
21
58
 
22
59
# Some useful constants
23
 
domain = 'se.bsnet.fukt'
 
60
domain = 'se.recompile'
24
61
server_interface = domain + '.Mandos'
25
62
client_interface = domain + '.Mandos.Client'
26
 
version = "1.0.14"
27
 
 
28
 
# Always run in monochrome mode
29
 
urwid.curses_display.curses.has_colors = lambda : False
30
 
 
31
 
# Urwid doesn't support blinking, but we want it.  Since we have no
32
 
# use for underline on its own, we make underline also always blink.
33
 
urwid.curses_display.curses.A_UNDERLINE |= (
34
 
    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
35
80
 
36
81
class MandosClientPropertyCache(object):
37
82
    """This wraps a Mandos Client D-Bus proxy object, caches the
38
83
    properties and calls a hook function when any of them are
39
84
    changed.
40
85
    """
41
 
    def __init__(self, proxy_object=None, properties=None, *args,
42
 
                 **kwargs):
 
86
    def __init__(self, proxy_object=None, properties=None, **kwargs):
43
87
        self.proxy = proxy_object # Mandos Client proxy object
44
 
        
45
 
        if properties is None:
46
 
            self.properties = dict()
47
 
        else:
48
 
            self.properties = properties
49
 
        self.proxy.connect_to_signal(u"PropertyChanged",
50
 
                                     self.property_changed,
51
 
                                     client_interface,
52
 
                                     byte_arrays=True)
53
 
        
54
 
        if properties is None:
55
 
            self.properties.update(self.proxy.GetAll(client_interface,
56
 
                                                     dbus_interface =
57
 
                                                     dbus.PROPERTIES_IFACE))
58
 
        super(MandosClientPropertyCache, self).__init__(
59
 
            proxy_object=proxy_object,
60
 
            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)
61
102
    
62
 
    def property_changed(self, property=None, value=None):
63
 
        """This is called whenever we get a PropertyChanged signal
64
 
        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.
65
106
        """
66
107
        # Update properties dict with new value
67
 
        self.properties[property] = value
 
108
        self.properties.update(properties)
 
109
    
 
110
    def delete(self):
 
111
        self.property_changed_match.remove()
68
112
 
69
113
 
70
114
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
72
116
    """
73
117
    
74
118
    def __init__(self, server_proxy_object=None, update_hook=None,
75
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
119
                 delete_hook=None, logger=None, **kwargs):
76
120
        # Called on update
77
121
        self.update_hook = update_hook
78
122
        # Called on delete
82
126
        # Logger
83
127
        self.logger = logger
84
128
        
 
129
        self._update_timer_callback_tag = None
 
130
        
85
131
        # The widget shown normally
86
 
        self._text_widget = urwid.Text(u"")
 
132
        self._text_widget = urwid.Text("")
87
133
        # The widget shown when we have focus
88
 
        self._focus_text_widget = urwid.Text(u"")
89
 
        super(MandosClientWidget, self).__init__(
90
 
            update_hook=update_hook, delete_hook=delete_hook,
91
 
            *args, **kwargs)
 
134
        self._focus_text_widget = urwid.Text("")
 
135
        super(MandosClientWidget, self).__init__(**kwargs)
92
136
        self.update()
93
137
        self.opened = False
94
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
95
 
                                     self.checker_completed,
96
 
                                     client_interface,
97
 
                                     byte_arrays=True)
98
 
        self.proxy.connect_to_signal(u"CheckerStarted",
99
 
                                     self.checker_started,
100
 
                                     client_interface,
101
 
                                     byte_arrays=True)
102
 
        self.proxy.connect_to_signal(u"GotSecret",
103
 
                                     self.got_secret,
104
 
                                     client_interface,
105
 
                                     byte_arrays=True)
106
 
        self.proxy.connect_to_signal(u"Rejected",
107
 
                                     self.rejected,
108
 
                                     client_interface,
109
 
                                     byte_arrays=True)
110
 
    
111
 
    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):
112
177
        if exitstatus == 0:
113
 
            self.logger(u'Checker for client %s (command "%s")'
114
 
                        u' was successful'
115
 
                        % (self.properties[u"name"], command))
116
 
            return
117
 
        if os.WIFEXITED(condition):
118
 
            self.logger(u'Checker for client %s (command "%s")'
119
 
                        u' failed with exit code %s'
120
 
                        % (self.properties[u"name"], command,
121
 
                           os.WEXITSTATUS(condition)))
122
 
            return
123
 
        if os.WIFSIGNALED(condition):
124
 
            self.logger(u'Checker for client %s (command "%s")'
125
 
                        u' was killed by signal %s'
126
 
                        % (self.properties[u"name"], command,
127
 
                           os.WTERMSIG(condition)))
128
 
            return
129
 
        if os.WCOREDUMP(condition):
130
 
            self.logger(u'Checker for client %s (command "%s")'
131
 
                        u' dumped core'
132
 
                        % (self.properties[u"name"], command))
133
 
        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()
134
199
    
135
200
    def checker_started(self, command):
136
 
        self.logger(u'Client %s started checker "%s"'
137
 
                    % (self.properties[u"name"], unicode(command)))
 
201
        """Server signals that a checker started."""
 
202
        self.logger('Client {} started checker "{}"'
 
203
                    .format(self.properties["Name"],
 
204
                            command), level=0)
138
205
    
139
206
    def got_secret(self):
140
 
        self.logger(u'Client %s received its secret'
141
 
                    % self.properties[u"name"])
142
 
    
143
 
    def rejected(self):
144
 
        self.logger(u'Client %s was rejected'
145
 
                    % self.properties[u"name"])
 
207
        self.logger('Client {} received its secret'
 
208
                    .format(self.properties["Name"]))
 
209
    
 
210
    def need_approval(self, timeout, default):
 
211
        if not default:
 
212
            message = 'Client {} needs approval within {} seconds'
 
213
        else:
 
214
            message = 'Client {} will get its secret in {} seconds'
 
215
        self.logger(message.format(self.properties["Name"],
 
216
                                   timeout/1000))
 
217
    
 
218
    def rejected(self, reason):
 
219
        self.logger('Client {} was rejected; reason: {}'
 
220
                    .format(self.properties["Name"], reason))
146
221
    
147
222
    def selectable(self):
148
223
        """Make this a "selectable" widget.
149
224
        This overrides the method from urwid.FlowWidget."""
150
225
        return True
151
226
    
152
 
    def rows(self, (maxcol,), focus=False):
 
227
    def rows(self, maxcolrow, focus=False):
153
228
        """How many rows this widget will occupy might depend on
154
229
        whether we have focus or not.
155
230
        This overrides the method from urwid.FlowWidget"""
156
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
231
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
157
232
    
158
233
    def current_widget(self, focus=False):
159
234
        if focus or self.opened:
163
238
    def update(self):
164
239
        "Called when what is visible on the screen should be updated."
165
240
        # How to add standout mode to a style
166
 
        with_standout = { u"normal": u"standout",
167
 
                          u"bold": u"bold-standout",
168
 
                          u"underline-blink":
169
 
                              u"underline-blink-standout",
170
 
                          u"bold-underline-blink":
171
 
                              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",
172
247
                          }
173
248
        
174
249
        # Rebuild focus and non-focus widgets using current properties
175
 
        self._text = (u'%(name)s: %(enabled)s'
176
 
                      % { u"name": self.properties[u"name"],
177
 
                          u"enabled":
178
 
                              (u"enabled"
179
 
                               if self.properties[u"enabled"]
180
 
                               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
        
181
293
        if not urwid.supports_unicode():
182
294
            self._text = self._text.encode("ascii", "replace")
183
 
        textlist = [(u"normal", self._text)]
 
295
        textlist = [("normal", self._text)]
184
296
        self._text_widget.set_text(textlist)
185
297
        self._focus_text_widget.set_text([(with_standout[text[0]],
186
298
                                           text[1])
194
306
        if self.update_hook is not None:
195
307
            self.update_hook()
196
308
    
197
 
    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 = ()
198
322
        if self.delete_hook is not None:
199
323
            self.delete_hook(self)
 
324
        return super(MandosClientWidget, self).delete(**kwargs)
200
325
    
201
 
    def render(self, (maxcol,), focus=False):
 
326
    def render(self, maxcolrow, focus=False):
202
327
        """Render differently if we have focus.
203
328
        This overrides the method from urwid.FlowWidget"""
204
 
        return self.current_widget(focus).render((maxcol,),
 
329
        return self.current_widget(focus).render(maxcolrow,
205
330
                                                 focus=focus)
206
331
    
207
 
    def keypress(self, (maxcol,), key):
 
332
    def keypress(self, maxcolrow, key):
208
333
        """Handle keys.
209
334
        This overrides the method from urwid.FlowWidget"""
210
 
        if key == u"e" or key == u"+":
211
 
            self.proxy.Enable()
212
 
        elif key == u"d" or key == u"-":
213
 
            self.proxy.Disable()
214
 
        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":
215
350
            self.server_proxy_object.RemoveClient(self.proxy
216
 
                                                  .object_path)
217
 
        elif key == u"s":
218
 
            self.proxy.StartChecker()
219
 
        elif key == u"S":
220
 
            self.proxy.StopChecker()
221
 
        elif key == u"C":
222
 
            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)
223
362
        # xxx
224
 
#         elif key == u"p" or key == "=":
 
363
#         elif key == "p" or key == "=":
225
364
#             self.proxy.pause()
226
 
#         elif key == u"u" or key == ":":
 
365
#         elif key == "u" or key == ":":
227
366
#             self.proxy.unpause()
228
 
#         elif key == u"RET":
 
367
#         elif key == "RET":
229
368
#             self.open()
230
369
        else:
231
370
            return key
232
371
    
233
 
    def property_changed(self, property=None, value=None,
234
 
                         *args, **kwargs):
235
 
        """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.
236
374
        This overrides the method from MandosClientPropertyCache"""
237
 
        property_name = unicode(property)
238
 
        old_value = self.properties.get(property_name)
239
 
        super(MandosClientWidget, self).property_changed(
240
 
            property=property, value=value, *args, **kwargs)
241
 
        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):
242
381
            self.update()
243
382
 
244
383
 
247
386
    "down" key presses, thus not allowing any containing widgets to
248
387
    use them as an excuse to shift focus away from this widget.
249
388
    """
250
 
    def keypress(self, (maxcol, maxrow), key):
251
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
252
 
        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"):
253
392
            return
254
393
        return ret
255
394
 
258
397
    """This is the entire user interface - the whole screen
259
398
    with boxes, lists of client widgets, etc.
260
399
    """
261
 
    def __init__(self, max_log_length=1000):
 
400
    def __init__(self, max_log_length=1000, log_level=1):
262
401
        DBusGMainLoop(set_as_default=True)
263
402
        
264
403
        self.screen = urwid.curses_display.Screen()
265
404
        
266
405
        self.screen.register_palette((
267
 
                (u"normal",
268
 
                 u"default", u"default", None),
269
 
                (u"bold",
270
 
                 u"default", u"default", u"bold"),
271
 
                (u"underline-blink",
272
 
                 u"default", u"default", u"underline"),
273
 
                (u"standout",
274
 
                 u"default", u"default", u"standout"),
275
 
                (u"bold-underline-blink",
276
 
                 u"default", u"default", (u"bold", u"underline")),
277
 
                (u"bold-standout",
278
 
                 u"default", u"default", (u"bold", u"standout")),
279
 
                (u"underline-blink-standout",
280
 
                 u"default", u"default", (u"underline", u"standout")),
281
 
                (u"bold-underline-blink-standout",
282
 
                 u"default", u"default", (u"bold", u"underline",
283
 
                                          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"),
284
424
                ))
285
425
        
286
426
        if urwid.supports_unicode():
287
 
            self.divider = u"─" # \u2500
288
 
            #self.divider = u"━" # \u2501
 
427
            self.divider = "─" # \u2500
 
428
            #self.divider = "━" # \u2501
289
429
        else:
290
 
            #self.divider = u"-" # \u002d
291
 
            self.divider = u"_" # \u005f
 
430
            #self.divider = "-" # \u002d
 
431
            self.divider = "_" # \u005f
292
432
        
293
433
        self.screen.start()
294
434
        
301
441
        self.log = []
302
442
        self.max_log_length = max_log_length
303
443
        
 
444
        self.log_level = log_level
 
445
        
304
446
        # We keep a reference to the log widget so we can remove it
305
447
        # from the ListWalker without it getting destroyed
306
448
        self.logbox = ConstrainedListBox(self.log)
308
450
        # This keeps track of whether self.uilist currently has
309
451
        # self.logbox in it or not
310
452
        self.log_visible = True
311
 
        self.log_wrap = u"any"
 
453
        self.log_wrap = "any"
312
454
        
313
455
        self.rebuild()
314
 
        self.log_message_raw((u"bold",
315
 
                              u"Mandos Monitor version " + version))
316
 
        self.log_message_raw((u"bold",
317
 
                              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"))
318
460
        
319
461
        self.busname = domain + '.Mandos'
320
462
        self.main_loop = gobject.MainLoop()
321
 
        self.bus = dbus.SystemBus()
322
 
        mandos_dbus_objc = self.bus.get_object(
323
 
            self.busname, u"/", follow_name_owner_changes=True)
324
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
325
 
                                          dbus_interface
326
 
                                          = server_interface)
327
 
        try:
328
 
            mandos_clients = (self.mandos_serv
329
 
                              .GetAllClientsWithProperties())
330
 
        except dbus.exceptions.DBusException:
331
 
            mandos_clients = dbus.Dictionary()
332
 
        
333
 
        (self.mandos_serv
334
 
         .connect_to_signal(u"ClientRemoved",
335
 
                            self.find_and_remove_client,
336
 
                            dbus_interface=server_interface,
337
 
                            byte_arrays=True))
338
 
        (self.mandos_serv
339
 
         .connect_to_signal(u"ClientAdded",
340
 
                            self.add_new_client,
341
 
                            dbus_interface=server_interface,
342
 
                            byte_arrays=True))
343
 
        (self.mandos_serv
344
 
         .connect_to_signal(u"ClientNotFound",
345
 
                            self.client_not_found,
346
 
                            dbus_interface=server_interface,
347
 
                            byte_arrays=True))
348
 
        for path, client in mandos_clients.iteritems():
349
 
            client_proxy_object = self.bus.get_object(self.busname,
350
 
                                                      path)
351
 
            self.add_client(MandosClientWidget(server_proxy_object
352
 
                                               =self.mandos_serv,
353
 
                                               proxy_object
354
 
                                               =client_proxy_object,
355
 
                                               properties=client,
356
 
                                               update_hook
357
 
                                               =self.refresh,
358
 
                                               delete_hook
359
 
                                               =self.remove_client,
360
 
                                               logger
361
 
                                               =self.log_message),
362
 
                            path=path)
363
463
    
364
464
    def client_not_found(self, fingerprint, address):
365
 
        self.log_message((u"Client with address %s and fingerprint %s"
366
 
                          u" could not be found" % (address,
367
 
                                                    fingerprint)))
 
465
        self.log_message("Client with address {} and fingerprint {}"
 
466
                         " could not be found"
 
467
                         .format(address, fingerprint))
368
468
    
369
469
    def rebuild(self):
370
470
        """This rebuilds the User Interface.
371
471
        Call this when the widget layout needs to change"""
372
472
        self.uilist = []
373
473
        #self.uilist.append(urwid.ListBox(self.clients))
374
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
474
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
475
                                                          clients),
375
476
                                       #header=urwid.Divider(),
376
477
                                       header=None,
377
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
478
                                       footer=
 
479
                                       urwid.Divider(div_char=
 
480
                                                     self.divider)))
378
481
        if self.log_visible:
379
482
            self.uilist.append(self.logbox)
380
 
            pass
381
483
        self.topwidget = urwid.Pile(self.uilist)
382
484
    
383
 
    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
384
489
        timestamp = datetime.datetime.now().isoformat()
385
 
        self.log_message_raw(timestamp + u": " + message)
 
490
        self.log_message_raw("{}: {}".format(timestamp, message),
 
491
                             level=level)
386
492
    
387
 
    def log_message_raw(self, markup):
 
493
    def log_message_raw(self, markup, level=1):
388
494
        """Add a log message to the log buffer."""
 
495
        if level < self.log_level:
 
496
            return
389
497
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
390
498
        if (self.max_log_length
391
499
            and len(self.log) > self.max_log_length):
392
500
            del self.log[0:len(self.log)-self.max_log_length-1]
393
501
        self.logbox.set_focus(len(self.logbox.body.contents),
394
 
                              coming_from=u"above")
 
502
                              coming_from="above")
395
503
        self.refresh()
396
504
    
397
505
    def toggle_log_display(self):
398
506
        """Toggle visibility of the log buffer."""
399
507
        self.log_visible = not self.log_visible
400
508
        self.rebuild()
401
 
        self.log_message(u"Log visibility changed to: "
402
 
                         + unicode(self.log_visible))
 
509
        self.log_message("Log visibility changed to: {}"
 
510
                         .format(self.log_visible), level=0)
403
511
    
404
512
    def change_log_display(self):
405
513
        """Change type of log display.
406
514
        Currently, this toggles wrapping of text lines."""
407
 
        if self.log_wrap == u"clip":
408
 
            self.log_wrap = u"any"
 
515
        if self.log_wrap == "clip":
 
516
            self.log_wrap = "any"
409
517
        else:
410
 
            self.log_wrap = u"clip"
 
518
            self.log_wrap = "clip"
411
519
        for textwidget in self.log:
412
520
            textwidget.set_wrap_mode(self.log_wrap)
413
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
521
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
522
                         level=0)
414
523
    
415
524
    def find_and_remove_client(self, path, name):
416
 
        """Find an client from its object path and remove it.
 
525
        """Find a client by its object path and remove it.
417
526
        
418
527
        This is connected to the ClientRemoved signal from the
419
528
        Mandos server object."""
421
530
            client = self.clients_dict[path]
422
531
        except KeyError:
423
532
            # not found?
 
533
            self.log_message("Unknown client {!r} ({!r}) removed"
 
534
                             .format(name, path))
424
535
            return
425
 
        self.remove_client(client, path)
 
536
        client.delete()
426
537
    
427
 
    def add_new_client(self, path, properties):
 
538
    def add_new_client(self, path):
428
539
        client_proxy_object = self.bus.get_object(self.busname, path)
429
540
        self.add_client(MandosClientWidget(server_proxy_object
430
541
                                           =self.mandos_serv,
431
542
                                           proxy_object
432
543
                                           =client_proxy_object,
433
 
                                           properties=properties,
434
544
                                           update_hook
435
545
                                           =self.refresh,
436
546
                                           delete_hook
437
 
                                           =self.remove_client),
 
547
                                           =self.remove_client,
 
548
                                           logger
 
549
                                           =self.log_message),
438
550
                        path=path)
439
551
    
440
552
    def add_client(self, client, path=None):
442
554
        if path is None:
443
555
            path = client.proxy.object_path
444
556
        self.clients_dict[path] = client
445
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
557
        self.clients.sort(key=lambda c: c.properties["Name"])
446
558
        self.refresh()
447
559
    
448
560
    def remove_client(self, client, path=None):
450
562
        if path is None:
451
563
            path = client.proxy.object_path
452
564
        del self.clients_dict[path]
453
 
        if not self.clients_dict:
454
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
455
 
            # is completely emptied, we need to recreate it.
456
 
            self.clients = urwid.SimpleListWalker([])
457
 
            self.rebuild()
458
565
        self.refresh()
459
566
    
460
567
    def refresh(self):
464
571
    
465
572
    def run(self):
466
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
        
467
620
        self.refresh()
468
621
        self._input_callback_tag = (gobject.io_add_watch
469
622
                                    (sys.stdin.fileno(),
479
632
    
480
633
    def process_input(self, source, condition):
481
634
        keys = self.screen.get_input()
482
 
        translations = { u"ctrl n": u"down",      # Emacs
483
 
                         u"ctrl p": u"up",        # Emacs
484
 
                         u"ctrl v": u"page down", # Emacs
485
 
                         u"meta v": u"page up",   # Emacs
486
 
                         u" ": u"page down",      # less
487
 
                         u"f": u"page down",      # less
488
 
                         u"b": u"page up",        # less
489
 
                         u"j": u"down",           # vi
490
 
                         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
491
644
                         }
492
645
        for key in keys:
493
646
            try:
495
648
            except KeyError:    # :-)
496
649
                pass
497
650
            
498
 
            if key == u"q" or key == u"Q":
 
651
            if key == "q" or key == "Q":
499
652
                self.stop()
500
653
                break
501
 
            elif key == u"window resize":
 
654
            elif key == "window resize":
502
655
                self.size = self.screen.get_cols_rows()
503
656
                self.refresh()
504
 
            elif key == u"\f":  # Ctrl-L
 
657
            elif key == "ctrl l":
 
658
                self.screen.clear()
505
659
                self.refresh()
506
 
            elif key == u"l" or key == u"D":
 
660
            elif key == "l" or key == "D":
507
661
                self.toggle_log_display()
508
662
                self.refresh()
509
 
            elif key == u"w" or key == u"i":
 
663
            elif key == "w" or key == "i":
510
664
                self.change_log_display()
511
665
                self.refresh()
512
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
666
            elif key == "?" or key == "f1" or key == "esc":
513
667
                if not self.log_visible:
514
668
                    self.log_visible = True
515
669
                    self.rebuild()
516
 
                self.log_message_raw((u"bold",
517
 
                                      u"  ".
518
 
                                      join((u"q: Quit",
519
 
                                            u"?: Help",
520
 
                                            u"l: Log window toggle",
521
 
                                            u"TAB: Switch window",
522
 
                                            u"w: Wrap (log)"))))
523
 
                self.log_message_raw((u"bold",
524
 
                                      u"  "
525
 
                                      .join((u"Clients:",
526
 
                                             u"e: Enable",
527
 
                                             u"d: Disable",
528
 
                                             u"r: Remove",
529
 
                                             u"s: Start new checker",
530
 
                                             u"S: Stop checker",
531
 
                                             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"))))
532
690
                self.refresh()
533
 
            elif key == u"tab":
 
691
            elif key == "tab":
534
692
                if self.topwidget.get_focus() is self.logbox:
535
693
                    self.topwidget.set_focus(0)
536
694
                else:
537
695
                    self.topwidget.set_focus(self.logbox)
538
696
                self.refresh()
539
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
540
 
            #      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 == ">"):
541
706
            #    pass            # xxx end-of-buffer
542
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
543
 
            #      or key == u"<"):
 
707
            #elif (key == "home" or key == "meta <" or key == "g"
 
708
            #      or key == "<"):
544
709
            #    pass            # xxx beginning-of-buffer
545
 
            #elif key == u"ctrl e" or key == u"$":
 
710
            #elif key == "ctrl e" or key == "$":
546
711
            #    pass            # xxx move-end-of-line
547
 
            #elif key == u"ctrl a" or key == u"^":
 
712
            #elif key == "ctrl a" or key == "^":
548
713
            #    pass            # xxx move-beginning-of-line
549
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
714
            #elif key == "ctrl b" or key == "meta (" or key == "h":
550
715
            #    pass            # xxx left
551
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
716
            #elif key == "ctrl f" or key == "meta )" or key == "l":
552
717
            #    pass            # xxx right
553
 
            #elif key == u"a":
 
718
            #elif key == "a":
554
719
            #    pass            # scroll up log
555
 
            #elif key == u"z":
 
720
            #elif key == "z":
556
721
            #    pass            # scroll down log
557
722
            elif self.topwidget.selectable():
558
723
                self.topwidget.keypress(self.size, key)
562
727
ui = UserInterface()
563
728
try:
564
729
    ui.run()
565
 
except:
 
730
except KeyboardInterrupt:
 
731
    ui.screen.stop()
 
732
except Exception as e:
 
733
    ui.log_message(str(e))
566
734
    ui.screen.stop()
567
735
    raise