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  • Committer: Björn Påhlsson
  • Date: 2010-09-07 20:22:16 UTC
  • mto: (237.4.3 mandos-release)
  • mto: This revision was merged to the branch mainline in revision 421.
  • Revision ID: belorn@fukt.bsnet.se-20100907202216-vypcn3nsd02mqz4s
mandos-monitor: removed milisecondsseconds from countdown.

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#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
#
4
 
# Mandos Monitor - Control and monitor the Mandos server
5
 
#
6
 
# Copyright © 2009-2016 Teddy Hogeborn
7
 
# Copyright © 2009-2016 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
 
#
25
3
 
26
 
from __future__ import (division, absolute_import, print_function,
27
 
                        unicode_literals)
28
 
try:
29
 
    from future_builtins import *
30
 
except ImportError:
31
 
    pass
 
4
from __future__ import division, absolute_import, with_statement
32
5
 
33
6
import sys
34
7
import os
 
8
import signal
35
9
 
36
10
import datetime
37
11
 
39
13
import urwid
40
14
 
41
15
from dbus.mainloop.glib import DBusGMainLoop
42
 
from gi.repository import GLib
 
16
import gobject
43
17
 
44
18
import dbus
45
19
 
 
20
import UserList
 
21
 
46
22
import locale
47
23
 
 
24
locale.setlocale(locale.LC_ALL, u'')
 
25
 
48
26
import logging
49
 
 
50
 
if sys.version_info.major == 2:
51
 
    str = unicode
52
 
 
53
 
locale.setlocale(locale.LC_ALL, '')
54
 
 
55
27
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
56
28
 
57
29
# Some useful constants
58
 
domain = 'se.recompile'
 
30
domain = 'se.bsnet.fukt'
59
31
server_interface = domain + '.Mandos'
60
32
client_interface = domain + '.Mandos.Client'
61
 
version = "1.7.13"
62
 
 
63
 
try:
64
 
    dbus.OBJECT_MANAGER_IFACE
65
 
except AttributeError:
66
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
67
 
 
 
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)
68
42
 
69
43
def isoformat_to_datetime(iso):
70
44
    "Parse an ISO 8601 date string to a datetime.datetime()"
71
45
    if not iso:
72
46
        return None
73
 
    d, t = iso.split("T", 1)
74
 
    year, month, day = d.split("-", 2)
75
 
    hour, minute, second = t.split(":", 2)
 
47
    d, t = iso.split(u"T", 1)
 
48
    year, month, day = d.split(u"-", 2)
 
49
    hour, minute, second = t.split(u":", 2)
76
50
    second, fraction = divmod(float(second), 1)
77
51
    return datetime.datetime(int(year),
78
52
                             int(month),
79
53
                             int(day),
80
54
                             int(hour),
81
55
                             int(minute),
82
 
                             int(second),            # Whole seconds
83
 
                             int(fraction*1000000))  # Microseconds
84
 
 
 
56
                             int(second),           # Whole seconds
 
57
                             int(fraction*1000000)) # Microseconds
85
58
 
86
59
class MandosClientPropertyCache(object):
87
60
    """This wraps a Mandos Client D-Bus proxy object, caches the
88
61
    properties and calls a hook function when any of them are
89
62
    changed.
90
63
    """
91
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
92
 
        self.proxy = proxy_object  # Mandos Client proxy object
93
 
        self.properties = dict() if properties is None else properties
94
 
        self.property_changed_match = (
95
 
            self.proxy.connect_to_signal("PropertiesChanged",
96
 
                                         self.properties_changed,
97
 
                                         dbus.PROPERTIES_IFACE,
98
 
                                         byte_arrays=True))
99
 
 
100
 
        if properties is None:
101
 
            self.properties.update(self.proxy.GetAll(
102
 
                client_interface,
103
 
                dbus_interface=dbus.PROPERTIES_IFACE))
104
 
 
105
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
106
 
 
107
 
    def properties_changed(self, interface, properties, invalidated):
108
 
        """This is called whenever we get a PropertiesChanged signal
109
 
        It updates the changed properties in the "properties" dict.
 
64
    def __init__(self, proxy_object=None, *args, **kwargs):
 
65
        self.proxy = proxy_object # Mandos Client proxy object
 
66
        
 
67
        self.properties = dict()
 
68
        self.proxy.connect_to_signal(u"PropertyChanged",
 
69
                                     self.property_changed,
 
70
                                     client_interface,
 
71
                                     byte_arrays=True)
 
72
        
 
73
        self.properties.update(
 
74
            self.proxy.GetAll(client_interface,
 
75
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
76
 
 
77
        #XXX This break good super behaviour!
 
78
#        super(MandosClientPropertyCache, self).__init__(
 
79
#            *args, **kwargs)
 
80
    
 
81
    def property_changed(self, property=None, value=None):
 
82
        """This is called whenever we get a PropertyChanged signal
 
83
        It updates the changed property in the "properties" dict.
110
84
        """
111
85
        # Update properties dict with new value
112
 
        if interface == client_interface:
113
 
            self.properties.update(properties)
114
 
 
115
 
    def delete(self):
116
 
        self.property_changed_match.remove()
 
86
        self.properties[property] = value
117
87
 
118
88
 
119
89
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
120
90
    """A Mandos Client which is visible on the screen.
121
91
    """
122
 
 
 
92
    
123
93
    def __init__(self, server_proxy_object=None, update_hook=None,
124
 
                 delete_hook=None, logger=None, **kwargs):
 
94
                 delete_hook=None, logger=None, *args, **kwargs):
125
95
        # Called on update
126
96
        self.update_hook = update_hook
127
97
        # Called on delete
130
100
        self.server_proxy_object = server_proxy_object
131
101
        # Logger
132
102
        self.logger = logger
133
 
 
 
103
        
134
104
        self._update_timer_callback_tag = None
135
 
 
 
105
        self.last_checker_failed = False
 
106
        
136
107
        # The widget shown normally
137
 
        self._text_widget = urwid.Text("")
 
108
        self._text_widget = urwid.Text(u"")
138
109
        # The widget shown when we have focus
139
 
        self._focus_text_widget = urwid.Text("")
140
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
110
        self._focus_text_widget = urwid.Text(u"")
 
111
        super(MandosClientWidget, self).__init__(
 
112
            update_hook=update_hook, delete_hook=delete_hook,
 
113
            *args, **kwargs)
141
114
        self.update()
142
115
        self.opened = False
143
 
 
144
 
        self.match_objects = (
145
 
            self.proxy.connect_to_signal("CheckerCompleted",
146
 
                                         self.checker_completed,
147
 
                                         client_interface,
148
 
                                         byte_arrays=True),
149
 
            self.proxy.connect_to_signal("CheckerStarted",
150
 
                                         self.checker_started,
151
 
                                         client_interface,
152
 
                                         byte_arrays=True),
153
 
            self.proxy.connect_to_signal("GotSecret",
154
 
                                         self.got_secret,
155
 
                                         client_interface,
156
 
                                         byte_arrays=True),
157
 
            self.proxy.connect_to_signal("NeedApproval",
158
 
                                         self.need_approval,
159
 
                                         client_interface,
160
 
                                         byte_arrays=True),
161
 
            self.proxy.connect_to_signal("Rejected",
162
 
                                         self.rejected,
163
 
                                         client_interface,
164
 
                                         byte_arrays=True))
165
 
        self.logger('Created client {}'
166
 
                    .format(self.properties["Name"]), level=0)
167
 
 
168
 
    def using_timer(self, flag):
169
 
        """Call this method with True or False when timer should be
170
 
        activated or deactivated.
171
 
        """
172
 
        if flag and self._update_timer_callback_tag is None:
173
 
            # Will update the shown timer value every second
174
 
            self._update_timer_callback_tag = (GLib.timeout_add
 
116
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
117
                                     self.checker_completed,
 
118
                                     client_interface,
 
119
                                     byte_arrays=True)
 
120
        self.proxy.connect_to_signal(u"CheckerStarted",
 
121
                                     self.checker_started,
 
122
                                     client_interface,
 
123
                                     byte_arrays=True)
 
124
        self.proxy.connect_to_signal(u"GotSecret",
 
125
                                     self.got_secret,
 
126
                                     client_interface,
 
127
                                     byte_arrays=True)
 
128
        self.proxy.connect_to_signal(u"NeedApproval",
 
129
                                     self.need_approval,
 
130
                                     client_interface,
 
131
                                     byte_arrays=True)
 
132
        self.proxy.connect_to_signal(u"Rejected",
 
133
                                     self.rejected,
 
134
                                     client_interface,
 
135
                                     byte_arrays=True)
 
136
        last_checked_ok = isoformat_to_datetime(self.properties
 
137
                                                ["last_checked_ok"])
 
138
        if last_checked_ok is None:
 
139
            self.last_checker_failed = True
 
140
        else:
 
141
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
142
                                         - last_checked_ok)
 
143
                                        > datetime.timedelta
 
144
                                        (milliseconds=
 
145
                                         self.properties["interval"]))
 
146
        if self.last_checker_failed:
 
147
            self._update_timer_callback_tag = (gobject.timeout_add
175
148
                                               (1000,
176
149
                                                self.update_timer))
177
 
        elif not (flag or self._update_timer_callback_tag is None):
178
 
            GLib.source_remove(self._update_timer_callback_tag)
179
 
            self._update_timer_callback_tag = None
180
 
 
 
150
    
181
151
    def checker_completed(self, exitstatus, condition, command):
182
152
        if exitstatus == 0:
183
 
            self.logger('Checker for client {} (command "{}")'
184
 
                        ' succeeded'.format(self.properties["Name"],
185
 
                                            command), level=0)
 
153
            if self.last_checker_failed:
 
154
                self.last_checker_failed = False
 
155
                gobject.source_remove(self._update_timer_callback_tag)
 
156
                self._update_timer_callback_tag = None
 
157
            self.logger(u'Checker for client %s (command "%s")'
 
158
                        u' was successful'
 
159
                        % (self.properties[u"name"], command))
186
160
            self.update()
187
161
            return
188
162
        # Checker failed
 
163
        if not self.last_checker_failed:
 
164
            self.last_checker_failed = True
 
165
            self._update_timer_callback_tag = (gobject.timeout_add
 
166
                                               (1000,
 
167
                                                self.update_timer))
189
168
        if os.WIFEXITED(condition):
190
 
            self.logger('Checker for client {} (command "{}") failed'
191
 
                        ' with exit code {}'
192
 
                        .format(self.properties["Name"], command,
193
 
                                os.WEXITSTATUS(condition)))
 
169
            self.logger(u'Checker for client %s (command "%s")'
 
170
                        u' failed with exit code %s'
 
171
                        % (self.properties[u"name"], command,
 
172
                           os.WEXITSTATUS(condition)))
194
173
        elif os.WIFSIGNALED(condition):
195
 
            self.logger('Checker for client {} (command "{}") was'
196
 
                        ' killed by signal {}'
197
 
                        .format(self.properties["Name"], command,
198
 
                                os.WTERMSIG(condition)))
 
174
            self.logger(u'Checker for client %s (command "%s")'
 
175
                        u' was killed by signal %s'
 
176
                        % (self.properties[u"name"], command,
 
177
                           os.WTERMSIG(condition)))
 
178
        elif os.WCOREDUMP(condition):
 
179
            self.logger(u'Checker for client %s (command "%s")'
 
180
                        u' dumped core'
 
181
                        % (self.properties[u"name"], command))
 
182
        else:
 
183
            self.logger(u'Checker for client %s completed mysteriously')
199
184
        self.update()
200
 
 
 
185
    
201
186
    def checker_started(self, command):
202
 
        """Server signals that a checker started."""
203
 
        self.logger('Client {} started checker "{}"'
204
 
                    .format(self.properties["Name"],
205
 
                            command), level=0)
206
 
 
 
187
        #self.logger(u'Client %s started checker "%s"'
 
188
        #            % (self.properties[u"name"], unicode(command)))
 
189
        pass
 
190
    
207
191
    def got_secret(self):
208
 
        self.logger('Client {} received its secret'
209
 
                    .format(self.properties["Name"]))
210
 
 
 
192
        self.logger(u'Client %s received its secret'
 
193
                    % self.properties[u"name"])
 
194
    
211
195
    def need_approval(self, timeout, default):
212
196
        if not default:
213
 
            message = 'Client {} needs approval within {} seconds'
 
197
            message = u'Client %s needs approval within %s seconds'
214
198
        else:
215
 
            message = 'Client {} will get its secret in {} seconds'
216
 
        self.logger(message.format(self.properties["Name"],
217
 
                                   timeout/1000))
218
 
 
 
199
            message = u'Client %s will get its secret in %s seconds'
 
200
        self.logger(message
 
201
                    % (self.properties[u"name"], timeout/1000))
 
202
    
219
203
    def rejected(self, reason):
220
 
        self.logger('Client {} was rejected; reason: {}'
221
 
                    .format(self.properties["Name"], reason))
222
 
 
 
204
        self.logger(u'Client %s was rejected; reason: %s'
 
205
                    % (self.properties[u"name"], reason))
 
206
    
223
207
    def selectable(self):
224
208
        """Make this a "selectable" widget.
225
209
        This overrides the method from urwid.FlowWidget."""
226
210
        return True
227
 
 
228
 
    def rows(self, maxcolrow, focus=False):
 
211
    
 
212
    def rows(self, (maxcol,), focus=False):
229
213
        """How many rows this widget will occupy might depend on
230
214
        whether we have focus or not.
231
215
        This overrides the method from urwid.FlowWidget"""
232
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
233
 
 
 
216
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
217
    
234
218
    def current_widget(self, focus=False):
235
219
        if focus or self.opened:
236
220
            return self._focus_widget
237
221
        return self._widget
238
 
 
 
222
    
239
223
    def update(self):
240
224
        "Called when what is visible on the screen should be updated."
241
225
        # How to add standout mode to a style
242
 
        with_standout = {"normal": "standout",
243
 
                         "bold": "bold-standout",
244
 
                         "underline-blink":
245
 
                         "underline-blink-standout",
246
 
                         "bold-underline-blink":
247
 
                         "bold-underline-blink-standout",
248
 
                         }
 
226
        with_standout = { u"normal": u"standout",
 
227
                          u"bold": u"bold-standout",
 
228
                          u"underline-blink":
 
229
                              u"underline-blink-standout",
 
230
                          u"bold-underline-blink":
 
231
                              u"bold-underline-blink-standout",
 
232
                          }
249
233
 
250
234
        # Rebuild focus and non-focus widgets using current properties
251
235
 
252
236
        # Base part of a client. Name!
253
 
        base = '{name}: '.format(name=self.properties["Name"])
254
 
        if not self.properties["Enabled"]:
255
 
            message = "DISABLED"
256
 
            self.using_timer(False)
257
 
        elif self.properties["ApprovalPending"]:
258
 
            timeout = datetime.timedelta(
259
 
                milliseconds=self.properties["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)
 
237
        base = (u'%(name)s: '
 
238
                      % {u"name": self.properties[u"name"]})
 
239
        if not self.properties[u"enabled"]:
 
240
            message = u"DISABLED"
 
241
        elif self.last_checker_failed:
 
242
            timeout = datetime.timedelta(milliseconds
 
243
                                         = self.properties[u"timeout"])
 
244
            last_ok = isoformat_to_datetime(
 
245
                max((self.properties["last_checked_ok"]
 
246
                     or self.properties["created"]),
 
247
                    self.properties[u"last_enabled"]))
 
248
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
249
            message = (u'A checker has failed! Time until client gets diabled: %s'
 
250
                           % unicode(timer).rsplit(".", 1)[0])
 
251
        elif self.properties[u"approved_pending"]:
 
252
            if self.properties[u"approved_by_default"]:
 
253
                message = u"Connection established to client. (d)eny?"
 
254
            else:
 
255
                message = u"Seeks approval to send secret. (a)pprove?"
288
256
        else:
289
 
            message = "enabled"
290
 
            self.using_timer(False)
291
 
        self._text = "{}{}".format(base, message)
292
 
 
 
257
            message = u"enabled"
 
258
        self._text = "%s%s" % (base, message)
 
259
            
293
260
        if not urwid.supports_unicode():
294
261
            self._text = self._text.encode("ascii", "replace")
295
 
        textlist = [("normal", self._text)]
 
262
        textlist = [(u"normal", self._text)]
296
263
        self._text_widget.set_text(textlist)
297
264
        self._focus_text_widget.set_text([(with_standout[text[0]],
298
265
                                           text[1])
305
272
        # Run update hook, if any
306
273
        if self.update_hook is not None:
307
274
            self.update_hook()
308
 
 
 
275
    
309
276
    def update_timer(self):
310
 
        """called by GLib. Will indefinitely loop until
311
 
        GLib.source_remove() on tag is called
312
 
        """
 
277
        "called by gobject"
313
278
        self.update()
314
279
        return True             # Keep calling this
315
 
 
316
 
    def delete(self, **kwargs):
 
280
    
 
281
    def delete(self):
317
282
        if self._update_timer_callback_tag is not None:
318
 
            GLib.source_remove(self._update_timer_callback_tag)
 
283
            gobject.source_remove(self._update_timer_callback_tag)
319
284
            self._update_timer_callback_tag = None
320
 
        for match in self.match_objects:
321
 
            match.remove()
322
 
        self.match_objects = ()
323
285
        if self.delete_hook is not None:
324
286
            self.delete_hook(self)
325
 
        return super(MandosClientWidget, self).delete(**kwargs)
326
 
 
327
 
    def render(self, maxcolrow, focus=False):
 
287
    
 
288
    def render(self, (maxcol,), focus=False):
328
289
        """Render differently if we have focus.
329
290
        This overrides the method from urwid.FlowWidget"""
330
 
        return self.current_widget(focus).render(maxcolrow,
 
291
        return self.current_widget(focus).render((maxcol,),
331
292
                                                 focus=focus)
332
 
 
333
 
    def keypress(self, maxcolrow, key):
 
293
    
 
294
    def keypress(self, (maxcol,), key):
334
295
        """Handle keys.
335
296
        This overrides the method from urwid.FlowWidget"""
336
 
        if key == "+":
337
 
            self.proxy.Set(client_interface, "Enabled",
338
 
                           dbus.Boolean(True), ignore_reply=True,
339
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
340
 
        elif key == "-":
341
 
            self.proxy.Set(client_interface, "Enabled", False,
342
 
                           ignore_reply=True,
343
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
344
 
        elif key == "a":
 
297
        if key == u"+":
 
298
            self.proxy.Enable(dbus_interface = client_interface)
 
299
        elif key == u"-":
 
300
            self.proxy.Disable(dbus_interface = client_interface)
 
301
        elif key == u"a":
345
302
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
346
 
                               dbus_interface=client_interface,
347
 
                               ignore_reply=True)
348
 
        elif key == "d":
 
303
                               dbus_interface = client_interface)
 
304
        elif key == u"d":
349
305
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
350
 
                               dbus_interface=client_interface,
351
 
                               ignore_reply=True)
352
 
        elif key == "R" or key == "_" or key == "ctrl k":
 
306
                                  dbus_interface = client_interface)
 
307
        elif key == u"r" or key == u"_" or key == u"ctrl k":
353
308
            self.server_proxy_object.RemoveClient(self.proxy
354
 
                                                  .object_path,
355
 
                                                  ignore_reply=True)
356
 
        elif key == "s":
357
 
            self.proxy.Set(client_interface, "CheckerRunning",
358
 
                           dbus.Boolean(True), ignore_reply=True,
359
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
360
 
        elif key == "S":
361
 
            self.proxy.Set(client_interface, "CheckerRunning",
362
 
                           dbus.Boolean(False), ignore_reply=True,
363
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
364
 
        elif key == "C":
365
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
366
 
                                 ignore_reply=True)
 
309
                                                  .object_path)
 
310
        elif key == u"s":
 
311
            self.proxy.StartChecker(dbus_interface = client_interface)
 
312
        elif key == u"S":
 
313
            self.proxy.StopChecker(dbus_interface = client_interface)
 
314
        elif key == u"C":
 
315
            self.proxy.CheckedOK(dbus_interface = client_interface)
367
316
        # xxx
368
 
#         elif key == "p" or key == "=":
 
317
#         elif key == u"p" or key == "=":
369
318
#             self.proxy.pause()
370
 
#         elif key == "u" or key == ":":
 
319
#         elif key == u"u" or key == ":":
371
320
#             self.proxy.unpause()
372
 
#         elif key == "RET":
 
321
#         elif key == u"RET":
373
322
#             self.open()
 
323
#        elif key == u"+":
 
324
#            self.proxy.Approve(True)
 
325
#        elif key == u"-":
 
326
#            self.proxy.Approve(False)
374
327
        else:
375
328
            return key
376
 
 
377
 
    def properties_changed(self, interface, properties, invalidated):
378
 
        """Call self.update() if any properties changed.
 
329
    
 
330
    def property_changed(self, property=None, value=None,
 
331
                         *args, **kwargs):
 
332
        """Call self.update() if old value is not new value.
379
333
        This overrides the method from MandosClientPropertyCache"""
380
 
        old_values = {key: self.properties.get(key)
381
 
                      for key in properties.keys()}
382
 
        super(MandosClientWidget, self).properties_changed(
383
 
            interface, properties, invalidated)
384
 
        if any(old_values[key] != self.properties.get(key)
385
 
               for key in old_values):
 
334
        property_name = unicode(property)
 
335
        old_value = self.properties.get(property_name)
 
336
        super(MandosClientWidget, self).property_changed(
 
337
            property=property, value=value, *args, **kwargs)
 
338
        if self.properties.get(property_name) != old_value:
386
339
            self.update()
387
340
 
388
341
 
391
344
    "down" key presses, thus not allowing any containing widgets to
392
345
    use them as an excuse to shift focus away from this widget.
393
346
    """
394
 
    def keypress(self, *args, **kwargs):
395
 
        ret = (super(ConstrainedListBox, self)
396
 
               .keypress(*args, **kwargs))
397
 
        if ret in ("up", "down"):
 
347
    def keypress(self, (maxcol, maxrow), key):
 
348
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
 
349
        if ret in (u"up", u"down"):
398
350
            return
399
351
        return ret
400
352
 
403
355
    """This is the entire user interface - the whole screen
404
356
    with boxes, lists of client widgets, etc.
405
357
    """
406
 
    def __init__(self, max_log_length=1000, log_level=1):
 
358
    def __init__(self, max_log_length=1000):
407
359
        DBusGMainLoop(set_as_default=True)
408
 
 
 
360
        
409
361
        self.screen = urwid.curses_display.Screen()
410
 
 
 
362
        
411
363
        self.screen.register_palette((
412
 
                ("normal",
413
 
                 "default", "default", None),
414
 
                ("bold",
415
 
                 "bold", "default", "bold"),
416
 
                ("underline-blink",
417
 
                 "underline,blink", "default", "underline,blink"),
418
 
                ("standout",
419
 
                 "standout", "default", "standout"),
420
 
                ("bold-underline-blink",
421
 
                 "bold,underline,blink", "default",
422
 
                 "bold,underline,blink"),
423
 
                ("bold-standout",
424
 
                 "bold,standout", "default", "bold,standout"),
425
 
                ("underline-blink-standout",
426
 
                 "underline,blink,standout", "default",
427
 
                 "underline,blink,standout"),
428
 
                ("bold-underline-blink-standout",
429
 
                 "bold,underline,blink,standout", "default",
430
 
                 "bold,underline,blink,standout"),
 
364
                (u"normal",
 
365
                 u"default", u"default", None),
 
366
                (u"bold",
 
367
                 u"default", u"default", u"bold"),
 
368
                (u"underline-blink",
 
369
                 u"default", u"default", u"underline"),
 
370
                (u"standout",
 
371
                 u"default", u"default", u"standout"),
 
372
                (u"bold-underline-blink",
 
373
                 u"default", u"default", (u"bold", u"underline")),
 
374
                (u"bold-standout",
 
375
                 u"default", u"default", (u"bold", u"standout")),
 
376
                (u"underline-blink-standout",
 
377
                 u"default", u"default", (u"underline", u"standout")),
 
378
                (u"bold-underline-blink-standout",
 
379
                 u"default", u"default", (u"bold", u"underline",
 
380
                                          u"standout")),
431
381
                ))
432
 
 
 
382
        
433
383
        if urwid.supports_unicode():
434
 
            self.divider = "─"  # \u2500
 
384
            self.divider = u"─" # \u2500
 
385
            #self.divider = u"━" # \u2501
435
386
        else:
436
 
            self.divider = "_"  # \u005f
437
 
 
 
387
            #self.divider = u"-" # \u002d
 
388
            self.divider = u"_" # \u005f
 
389
        
438
390
        self.screen.start()
439
 
 
 
391
        
440
392
        self.size = self.screen.get_cols_rows()
441
 
 
 
393
        
442
394
        self.clients = urwid.SimpleListWalker([])
443
395
        self.clients_dict = {}
444
 
 
 
396
        
445
397
        # We will add Text widgets to this list
446
398
        self.log = []
447
399
        self.max_log_length = max_log_length
448
 
 
449
 
        self.log_level = log_level
450
 
 
 
400
        
451
401
        # We keep a reference to the log widget so we can remove it
452
402
        # from the ListWalker without it getting destroyed
453
403
        self.logbox = ConstrainedListBox(self.log)
454
 
 
 
404
        
455
405
        # This keeps track of whether self.uilist currently has
456
406
        # self.logbox in it or not
457
407
        self.log_visible = True
458
 
        self.log_wrap = "any"
459
 
 
 
408
        self.log_wrap = u"any"
 
409
        
460
410
        self.rebuild()
461
 
        self.log_message_raw(("bold",
462
 
                              "Mandos Monitor version " + version))
463
 
        self.log_message_raw(("bold",
464
 
                              "q: Quit  ?: Help"))
465
 
 
 
411
        self.log_message_raw((u"bold",
 
412
                              u"Mandos Monitor version " + version))
 
413
        self.log_message_raw((u"bold",
 
414
                              u"q: Quit  ?: Help"))
 
415
        
466
416
        self.busname = domain + '.Mandos'
467
 
        self.main_loop = GLib.MainLoop()
468
 
 
 
417
        self.main_loop = gobject.MainLoop()
 
418
        self.bus = dbus.SystemBus()
 
419
        mandos_dbus_objc = self.bus.get_object(
 
420
            self.busname, u"/", follow_name_owner_changes=True)
 
421
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
422
                                          dbus_interface
 
423
                                          = server_interface)
 
424
        try:
 
425
            mandos_clients = (self.mandos_serv
 
426
                              .GetAllClientsWithProperties())
 
427
        except dbus.exceptions.DBusException:
 
428
            mandos_clients = dbus.Dictionary()
 
429
        
 
430
        (self.mandos_serv
 
431
         .connect_to_signal(u"ClientRemoved",
 
432
                            self.find_and_remove_client,
 
433
                            dbus_interface=server_interface,
 
434
                            byte_arrays=True))
 
435
        (self.mandos_serv
 
436
         .connect_to_signal(u"ClientAdded",
 
437
                            self.add_new_client,
 
438
                            dbus_interface=server_interface,
 
439
                            byte_arrays=True))
 
440
        (self.mandos_serv
 
441
         .connect_to_signal(u"ClientNotFound",
 
442
                            self.client_not_found,
 
443
                            dbus_interface=server_interface,
 
444
                            byte_arrays=True))
 
445
        for path, client in mandos_clients.iteritems():
 
446
            client_proxy_object = self.bus.get_object(self.busname,
 
447
                                                      path)
 
448
            self.add_client(MandosClientWidget(server_proxy_object
 
449
                                               =self.mandos_serv,
 
450
                                               proxy_object
 
451
                                               =client_proxy_object,
 
452
                                               properties=client,
 
453
                                               update_hook
 
454
                                               =self.refresh,
 
455
                                               delete_hook
 
456
                                               =self.remove_client,
 
457
                                               logger
 
458
                                               =self.log_message),
 
459
                            path=path)
 
460
    
469
461
    def client_not_found(self, fingerprint, address):
470
 
        self.log_message("Client with address {} and fingerprint {}"
471
 
                         " could not be found"
472
 
                         .format(address, fingerprint))
473
 
 
 
462
        self.log_message((u"Client with address %s and fingerprint %s"
 
463
                          u" could not be found" % (address,
 
464
                                                    fingerprint)))
 
465
    
474
466
    def rebuild(self):
475
467
        """This rebuilds the User Interface.
476
468
        Call this when the widget layout needs to change"""
477
469
        self.uilist = []
478
 
        # self.uilist.append(urwid.ListBox(self.clients))
479
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
480
 
                                                          clients),
481
 
                                       # header=urwid.Divider(),
 
470
        #self.uilist.append(urwid.ListBox(self.clients))
 
471
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
472
                                       #header=urwid.Divider(),
482
473
                                       header=None,
483
 
                                       footer=urwid.Divider(
484
 
                                           div_char=self.divider)))
 
474
                                       footer=urwid.Divider(div_char=self.divider)))
485
475
        if self.log_visible:
486
476
            self.uilist.append(self.logbox)
 
477
            pass
487
478
        self.topwidget = urwid.Pile(self.uilist)
488
 
 
489
 
    def log_message(self, message, level=1):
490
 
        """Log message formatted with timestamp"""
491
 
        if level < self.log_level:
492
 
            return
 
479
    
 
480
    def log_message(self, message):
493
481
        timestamp = datetime.datetime.now().isoformat()
494
 
        self.log_message_raw("{}: {}".format(timestamp, message),
495
 
                             level=level)
496
 
 
497
 
    def log_message_raw(self, markup, level=1):
 
482
        self.log_message_raw(timestamp + u": " + message)
 
483
    
 
484
    def log_message_raw(self, markup):
498
485
        """Add a log message to the log buffer."""
499
 
        if level < self.log_level:
500
 
            return
501
486
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
502
 
        if self.max_log_length:
503
 
            if len(self.log) > self.max_log_length:
504
 
                del self.log[0:len(self.log)-self.max_log_length-1]
 
487
        if (self.max_log_length
 
488
            and len(self.log) > self.max_log_length):
 
489
            del self.log[0:len(self.log)-self.max_log_length-1]
505
490
        self.logbox.set_focus(len(self.logbox.body.contents),
506
 
                              coming_from="above")
 
491
                              coming_from=u"above")
507
492
        self.refresh()
508
 
 
 
493
    
509
494
    def toggle_log_display(self):
510
495
        """Toggle visibility of the log buffer."""
511
496
        self.log_visible = not self.log_visible
512
497
        self.rebuild()
513
 
        self.log_message("Log visibility changed to: {}"
514
 
                         .format(self.log_visible), level=0)
515
 
 
 
498
        self.log_message(u"Log visibility changed to: "
 
499
                         + unicode(self.log_visible))
 
500
    
516
501
    def change_log_display(self):
517
502
        """Change type of log display.
518
503
        Currently, this toggles wrapping of text lines."""
519
 
        if self.log_wrap == "clip":
520
 
            self.log_wrap = "any"
 
504
        if self.log_wrap == u"clip":
 
505
            self.log_wrap = u"any"
521
506
        else:
522
 
            self.log_wrap = "clip"
 
507
            self.log_wrap = u"clip"
523
508
        for textwidget in self.log:
524
509
            textwidget.set_wrap_mode(self.log_wrap)
525
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
526
 
                         level=0)
527
 
 
528
 
    def find_and_remove_client(self, path, interfaces):
529
 
        """Find a client by its object path and remove it.
530
 
 
531
 
        This is connected to the InterfacesRemoved signal from the
 
510
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
511
    
 
512
    def find_and_remove_client(self, path, name):
 
513
        """Find an client from its object path and remove it.
 
514
        
 
515
        This is connected to the ClientRemoved signal from the
532
516
        Mandos server object."""
533
 
        if client_interface not in interfaces:
534
 
            # Not a Mandos client object; ignore
535
 
            return
536
517
        try:
537
518
            client = self.clients_dict[path]
538
519
        except KeyError:
539
520
            # not found?
540
 
            self.log_message("Unknown client {!r} removed"
541
 
                             .format(path))
542
 
            return
543
 
        client.delete()
544
 
 
545
 
    def add_new_client(self, path, ifs_and_props):
546
 
        """Find a client by its object path and remove it.
547
 
 
548
 
        This is connected to the InterfacesAdded signal from the
549
 
        Mandos server object.
550
 
        """
551
 
        if client_interface not in ifs_and_props:
552
 
            # Not a Mandos client object; ignore
553
 
            return
 
521
            return
 
522
        self.remove_client(client, path)
 
523
    
 
524
    def add_new_client(self, path):
554
525
        client_proxy_object = self.bus.get_object(self.busname, path)
555
 
        self.add_client(MandosClientWidget(
556
 
            server_proxy_object=self.mandos_serv,
557
 
            proxy_object=client_proxy_object,
558
 
            update_hook=self.refresh,
559
 
            delete_hook=self.remove_client,
560
 
            logger=self.log_message,
561
 
            properties=dict(ifs_and_props[client_interface])),
 
526
        self.add_client(MandosClientWidget(server_proxy_object
 
527
                                           =self.mandos_serv,
 
528
                                           proxy_object
 
529
                                           =client_proxy_object,
 
530
                                           update_hook
 
531
                                           =self.refresh,
 
532
                                           delete_hook
 
533
                                           =self.remove_client,
 
534
                                           logger
 
535
                                           =self.log_message),
562
536
                        path=path)
563
 
 
 
537
    
564
538
    def add_client(self, client, path=None):
565
539
        self.clients.append(client)
566
540
        if path is None:
567
541
            path = client.proxy.object_path
568
542
        self.clients_dict[path] = client
569
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
543
        self.clients.sort(None, lambda c: c.properties[u"name"])
570
544
        self.refresh()
571
 
 
 
545
    
572
546
    def remove_client(self, client, path=None):
573
547
        self.clients.remove(client)
574
548
        if path is None:
575
549
            path = client.proxy.object_path
576
550
        del self.clients_dict[path]
 
551
        if not self.clients_dict:
 
552
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
553
            # is completely emptied, we need to recreate it.
 
554
            self.clients = urwid.SimpleListWalker([])
 
555
            self.rebuild()
577
556
        self.refresh()
578
 
 
 
557
    
579
558
    def refresh(self):
580
559
        """Redraw the screen"""
581
560
        canvas = self.topwidget.render(self.size, focus=True)
582
561
        self.screen.draw_screen(self.size, canvas)
583
 
 
 
562
    
584
563
    def run(self):
585
564
        """Start the main loop and exit when it's done."""
586
 
        self.bus = dbus.SystemBus()
587
 
        mandos_dbus_objc = self.bus.get_object(
588
 
            self.busname, "/", follow_name_owner_changes=True)
589
 
        self.mandos_serv = dbus.Interface(
590
 
            mandos_dbus_objc, dbus_interface=server_interface)
591
 
        try:
592
 
            mandos_clients = (self.mandos_serv
593
 
                              .GetAllClientsWithProperties())
594
 
            if not mandos_clients:
595
 
                self.log_message_raw(("bold",
596
 
                                      "Note: Server has no clients."))
597
 
        except dbus.exceptions.DBusException:
598
 
            self.log_message_raw(("bold",
599
 
                                  "Note: No Mandos server running."))
600
 
            mandos_clients = dbus.Dictionary()
601
 
 
602
 
        (self.mandos_serv
603
 
         .connect_to_signal("InterfacesRemoved",
604
 
                            self.find_and_remove_client,
605
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
606
 
                            byte_arrays=True))
607
 
        (self.mandos_serv
608
 
         .connect_to_signal("InterfacesAdded",
609
 
                            self.add_new_client,
610
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
611
 
                            byte_arrays=True))
612
 
        (self.mandos_serv
613
 
         .connect_to_signal("ClientNotFound",
614
 
                            self.client_not_found,
615
 
                            dbus_interface=server_interface,
616
 
                            byte_arrays=True))
617
 
        for path, client in mandos_clients.items():
618
 
            client_proxy_object = self.bus.get_object(self.busname,
619
 
                                                      path)
620
 
            self.add_client(MandosClientWidget(
621
 
                server_proxy_object=self.mandos_serv,
622
 
                proxy_object=client_proxy_object,
623
 
                properties=client,
624
 
                update_hook=self.refresh,
625
 
                delete_hook=self.remove_client,
626
 
                logger=self.log_message),
627
 
                            path=path)
628
 
 
629
565
        self.refresh()
630
 
        self._input_callback_tag = (GLib.io_add_watch
 
566
        self._input_callback_tag = (gobject.io_add_watch
631
567
                                    (sys.stdin.fileno(),
632
 
                                     GLib.IO_IN,
 
568
                                     gobject.IO_IN,
633
569
                                     self.process_input))
634
570
        self.main_loop.run()
635
571
        # Main loop has finished, we should close everything now
636
 
        GLib.source_remove(self._input_callback_tag)
 
572
        gobject.source_remove(self._input_callback_tag)
637
573
        self.screen.stop()
638
 
 
 
574
    
639
575
    def stop(self):
640
576
        self.main_loop.quit()
641
 
 
 
577
    
642
578
    def process_input(self, source, condition):
643
579
        keys = self.screen.get_input()
644
 
        translations = {"ctrl n": "down",       # Emacs
645
 
                        "ctrl p": "up",         # Emacs
646
 
                        "ctrl v": "page down",  # Emacs
647
 
                        "meta v": "page up",    # Emacs
648
 
                        " ": "page down",       # less
649
 
                        "f": "page down",       # less
650
 
                        "b": "page up",         # less
651
 
                        "j": "down",            # vi
652
 
                        "k": "up",              # vi
653
 
                        }
 
580
        translations = { u"ctrl n": u"down",      # Emacs
 
581
                         u"ctrl p": u"up",        # Emacs
 
582
                         u"ctrl v": u"page down", # Emacs
 
583
                         u"meta v": u"page up",   # Emacs
 
584
                         u" ": u"page down",      # less
 
585
                         u"f": u"page down",      # less
 
586
                         u"b": u"page up",        # less
 
587
                         u"j": u"down",           # vi
 
588
                         u"k": u"up",             # vi
 
589
                         }
654
590
        for key in keys:
655
591
            try:
656
592
                key = translations[key]
657
593
            except KeyError:    # :-)
658
594
                pass
659
 
 
660
 
            if key == "q" or key == "Q":
 
595
            
 
596
            if key == u"q" or key == u"Q":
661
597
                self.stop()
662
598
                break
663
 
            elif key == "window resize":
 
599
            elif key == u"window resize":
664
600
                self.size = self.screen.get_cols_rows()
665
601
                self.refresh()
666
 
            elif key == "ctrl l":
667
 
                self.screen.clear()
 
602
            elif key == u"\f":  # Ctrl-L
668
603
                self.refresh()
669
 
            elif key == "l" or key == "D":
 
604
            elif key == u"l" or key == u"D":
670
605
                self.toggle_log_display()
671
606
                self.refresh()
672
 
            elif key == "w" or key == "i":
 
607
            elif key == u"w" or key == u"i":
673
608
                self.change_log_display()
674
609
                self.refresh()
675
 
            elif key == "?" or key == "f1" or key == "esc":
 
610
            elif key == u"?" or key == u"f1" or key == u"esc":
676
611
                if not self.log_visible:
677
612
                    self.log_visible = True
678
613
                    self.rebuild()
679
 
                self.log_message_raw(("bold",
680
 
                                      "  ".
681
 
                                      join(("q: Quit",
682
 
                                            "?: Help",
683
 
                                            "l: Log window toggle",
684
 
                                            "TAB: Switch window",
685
 
                                            "w: Wrap (log lines)",
686
 
                                            "v: Toggle verbose log",
687
 
                                            ))))
688
 
                self.log_message_raw(("bold",
689
 
                                      "  "
690
 
                                      .join(("Clients:",
691
 
                                             "+: Enable",
692
 
                                             "-: Disable",
693
 
                                             "R: Remove",
694
 
                                             "s: Start new checker",
695
 
                                             "S: Stop checker",
696
 
                                             "C: Checker OK",
697
 
                                             "a: Approve",
698
 
                                             "d: Deny"))))
 
614
                self.log_message_raw((u"bold",
 
615
                                      u"  ".
 
616
                                      join((u"q: Quit",
 
617
                                            u"?: Help",
 
618
                                            u"l: Log window toggle",
 
619
                                            u"TAB: Switch window",
 
620
                                            u"w: Wrap (log)"))))
 
621
                self.log_message_raw((u"bold",
 
622
                                      u"  "
 
623
                                      .join((u"Clients:",
 
624
                                             u"+: Enable",
 
625
                                             u"-: Disable",
 
626
                                             u"r: Remove",
 
627
                                             u"s: Start new checker",
 
628
                                             u"S: Stop checker",
 
629
                                             u"C: Checker OK",
 
630
                                             u"a: Approve",
 
631
                                             u"d: Deny"))))
699
632
                self.refresh()
700
 
            elif key == "tab":
 
633
            elif key == u"tab":
701
634
                if self.topwidget.get_focus() is self.logbox:
702
635
                    self.topwidget.set_focus(0)
703
636
                else:
704
637
                    self.topwidget.set_focus(self.logbox)
705
638
                self.refresh()
706
 
            elif key == "v":
707
 
                if self.log_level == 0:
708
 
                    self.log_level = 1
709
 
                    self.log_message("Verbose mode: Off")
710
 
                else:
711
 
                    self.log_level = 0
712
 
                    self.log_message("Verbose mode: On")
713
 
            # elif (key == "end" or key == "meta >" or key == "G"
714
 
            #       or key == ">"):
715
 
            #     pass            # xxx end-of-buffer
716
 
            # elif (key == "home" or key == "meta <" or key == "g"
717
 
            #       or key == "<"):
718
 
            #     pass            # xxx beginning-of-buffer
719
 
            # elif key == "ctrl e" or key == "$":
720
 
            #     pass            # xxx move-end-of-line
721
 
            # elif key == "ctrl a" or key == "^":
722
 
            #     pass            # xxx move-beginning-of-line
723
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
724
 
            #     pass            # xxx left
725
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
726
 
            #     pass            # xxx right
727
 
            # elif key == "a":
728
 
            #     pass            # scroll up log
729
 
            # elif key == "z":
730
 
            #     pass            # scroll down log
 
639
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
640
            #      or key == u">"):
 
641
            #    pass            # xxx end-of-buffer
 
642
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
643
            #      or key == u"<"):
 
644
            #    pass            # xxx beginning-of-buffer
 
645
            #elif key == u"ctrl e" or key == u"$":
 
646
            #    pass            # xxx move-end-of-line
 
647
            #elif key == u"ctrl a" or key == u"^":
 
648
            #    pass            # xxx move-beginning-of-line
 
649
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
650
            #    pass            # xxx left
 
651
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
652
            #    pass            # xxx right
 
653
            #elif key == u"a":
 
654
            #    pass            # scroll up log
 
655
            #elif key == u"z":
 
656
            #    pass            # scroll down log
731
657
            elif self.topwidget.selectable():
732
658
                self.topwidget.keypress(self.size, key)
733
659
                self.refresh()
736
662
ui = UserInterface()
737
663
try:
738
664
    ui.run()
739
 
except KeyboardInterrupt:
740
 
    ui.screen.stop()
741
 
except Exception as e:
742
 
    ui.log_message(str(e))
 
665
except Exception, e:
 
666
    ui.log_message(unicode(e))
743
667
    ui.screen.stop()
744
668
    raise