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  • Committer: Teddy Hogeborn
  • Date: 2016-03-05 21:05:11 UTC
  • Revision ID: teddy@recompile.se-20160305210511-pbehwc5ap85cfhdm
Rename "gobject" to "GObject"; prefer the new python-gi

* debian/control (Source: mandos/Build-Depends-Indep): Change
  "python-gobject | python-gi" to "python-gi | python-gobject"
  (Package: mandos/Depends): - '' -
* mandos: Prefer "gi" module over "gobject" module.  Import "gobject"
  as "GObject"; change spelling throughout.
* mandos-monitor: - '' -

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mandos-monitor
1
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
 
3
# 
 
4
# Mandos Monitor - Control and monitor the Mandos server
 
5
# 
 
6
# Copyright © 2009-2016 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
# 
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
    from gi.repository import GObject
 
44
except ImportError:
 
45
    import gobject as GObject
17
46
 
18
47
import dbus
19
48
 
20
 
import UserList
21
 
 
22
49
import locale
23
50
 
24
 
locale.setlocale(locale.LC_ALL, u'')
 
51
if sys.version_info.major == 2:
 
52
    str = unicode
 
53
 
 
54
locale.setlocale(locale.LC_ALL, '')
25
55
 
26
56
import logging
27
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
28
58
 
29
59
# Some useful constants
30
 
domain = 'se.bsnet.fukt'
 
60
domain = 'se.recompile'
31
61
server_interface = domain + '.Mandos'
32
62
client_interface = domain + '.Mandos.Client'
33
 
version = "1.0.15"
34
 
 
35
 
# Always run in monochrome mode
36
 
urwid.curses_display.curses.has_colors = lambda : False
37
 
 
38
 
# Urwid doesn't support blinking, but we want it.  Since we have no
39
 
# use for underline on its own, we make underline also always blink.
40
 
urwid.curses_display.curses.A_UNDERLINE |= (
41
 
    urwid.curses_display.curses.A_BLINK)
 
63
version = "1.7.3"
 
64
 
 
65
try:
 
66
    dbus.OBJECT_MANAGER_IFACE
 
67
except AttributeError:
 
68
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
69
 
 
70
def isoformat_to_datetime(iso):
 
71
    "Parse an ISO 8601 date string to a datetime.datetime()"
 
72
    if not iso:
 
73
        return None
 
74
    d, t = iso.split("T", 1)
 
75
    year, month, day = d.split("-", 2)
 
76
    hour, minute, second = t.split(":", 2)
 
77
    second, fraction = divmod(float(second), 1)
 
78
    return datetime.datetime(int(year),
 
79
                             int(month),
 
80
                             int(day),
 
81
                             int(hour),
 
82
                             int(minute),
 
83
                             int(second),           # Whole seconds
 
84
                             int(fraction*1000000)) # Microseconds
42
85
 
43
86
class MandosClientPropertyCache(object):
44
87
    """This wraps a Mandos Client D-Bus proxy object, caches the
45
88
    properties and calls a hook function when any of them are
46
89
    changed.
47
90
    """
48
 
    def __init__(self, proxy_object=None, *args, **kwargs):
 
91
    def __init__(self, proxy_object=None, properties=None, **kwargs):
49
92
        self.proxy = proxy_object # Mandos Client proxy object
50
 
        
51
 
        self.properties = dict()
52
 
        self.proxy.connect_to_signal(u"PropertyChanged",
53
 
                                     self.property_changed,
54
 
                                     client_interface,
55
 
                                     byte_arrays=True)
56
 
        
57
 
        self.properties.update(
58
 
            self.proxy.GetAll(client_interface,
59
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
60
 
 
61
 
        #XXX This break good super behaviour!
62
 
#        super(MandosClientPropertyCache, self).__init__(
63
 
#            *args, **kwargs)
 
93
        self.properties = dict() if properties is None else properties
 
94
        self.property_changed_match = (
 
95
            self.proxy.connect_to_signal("PropertiesChanged",
 
96
                                         self.properties_changed,
 
97
                                         dbus.PROPERTIES_IFACE,
 
98
                                         byte_arrays=True))
 
99
        
 
100
        if properties is None:
 
101
            self.properties.update(
 
102
                self.proxy.GetAll(client_interface,
 
103
                                  dbus_interface
 
104
                                  = dbus.PROPERTIES_IFACE))
 
105
        
 
106
        super(MandosClientPropertyCache, self).__init__(**kwargs)
64
107
    
65
 
    def property_changed(self, property=None, value=None):
66
 
        """This is called whenever we get a PropertyChanged signal
67
 
        It updates the changed property in the "properties" dict.
 
108
    def properties_changed(self, interface, properties, invalidated):
 
109
        """This is called whenever we get a PropertiesChanged signal
 
110
        It updates the changed properties in the "properties" dict.
68
111
        """
69
112
        # Update properties dict with new value
70
 
        self.properties[property] = value
 
113
        if interface == client_interface:
 
114
            self.properties.update(properties)
 
115
    
 
116
    def delete(self):
 
117
        self.property_changed_match.remove()
71
118
 
72
119
 
73
120
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
75
122
    """
76
123
    
77
124
    def __init__(self, server_proxy_object=None, update_hook=None,
78
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
125
                 delete_hook=None, logger=None, **kwargs):
79
126
        # Called on update
80
127
        self.update_hook = update_hook
81
128
        # Called on delete
85
132
        # Logger
86
133
        self.logger = logger
87
134
        
 
135
        self._update_timer_callback_tag = None
 
136
        
88
137
        # The widget shown normally
89
 
        self._text_widget = urwid.Text(u"")
 
138
        self._text_widget = urwid.Text("")
90
139
        # The widget shown when we have focus
91
 
        self._focus_text_widget = urwid.Text(u"")
92
 
        super(MandosClientWidget, self).__init__(
93
 
            update_hook=update_hook, delete_hook=delete_hook,
94
 
            *args, **kwargs)
 
140
        self._focus_text_widget = urwid.Text("")
 
141
        super(MandosClientWidget, self).__init__(**kwargs)
95
142
        self.update()
96
143
        self.opened = False
97
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
98
 
                                     self.checker_completed,
99
 
                                     client_interface,
100
 
                                     byte_arrays=True)
101
 
        self.proxy.connect_to_signal(u"CheckerStarted",
102
 
                                     self.checker_started,
103
 
                                     client_interface,
104
 
                                     byte_arrays=True)
105
 
        self.proxy.connect_to_signal(u"GotSecret",
106
 
                                     self.got_secret,
107
 
                                     client_interface,
108
 
                                     byte_arrays=True)
109
 
        self.proxy.connect_to_signal(u"NeedApproval",
110
 
                                     self.need_approval,
111
 
                                     client_interface,
112
 
                                     byte_arrays=True)
113
 
        self.proxy.connect_to_signal(u"Rejected",
114
 
                                     self.rejected,
115
 
                                     client_interface,
116
 
                                     byte_arrays=True)
 
144
        
 
145
        self.match_objects = (
 
146
            self.proxy.connect_to_signal("CheckerCompleted",
 
147
                                         self.checker_completed,
 
148
                                         client_interface,
 
149
                                         byte_arrays=True),
 
150
            self.proxy.connect_to_signal("CheckerStarted",
 
151
                                         self.checker_started,
 
152
                                         client_interface,
 
153
                                         byte_arrays=True),
 
154
            self.proxy.connect_to_signal("GotSecret",
 
155
                                         self.got_secret,
 
156
                                         client_interface,
 
157
                                         byte_arrays=True),
 
158
            self.proxy.connect_to_signal("NeedApproval",
 
159
                                         self.need_approval,
 
160
                                         client_interface,
 
161
                                         byte_arrays=True),
 
162
            self.proxy.connect_to_signal("Rejected",
 
163
                                         self.rejected,
 
164
                                         client_interface,
 
165
                                         byte_arrays=True))
 
166
        self.logger('Created client {}'
 
167
                    .format(self.properties["Name"]), level=0)
 
168
    
 
169
    def using_timer(self, flag):
 
170
        """Call this method with True or False when timer should be
 
171
        activated or deactivated.
 
172
        """
 
173
        if flag and self._update_timer_callback_tag is None:
 
174
            # Will update the shown timer value every second
 
175
            self._update_timer_callback_tag = (GObject.timeout_add
 
176
                                               (1000,
 
177
                                                self.update_timer))
 
178
        elif not (flag or self._update_timer_callback_tag is None):
 
179
            GObject.source_remove(self._update_timer_callback_tag)
 
180
            self._update_timer_callback_tag = None
117
181
    
118
182
    def checker_completed(self, exitstatus, condition, command):
119
183
        if exitstatus == 0:
120
 
            #self.logger(u'Checker for client %s (command "%s")'
121
 
            #            u' was successful'
122
 
            #            % (self.properties[u"name"], command))
 
184
            self.logger('Checker for client {} (command "{}")'
 
185
                        ' succeeded'.format(self.properties["Name"],
 
186
                                            command), level=0)
 
187
            self.update()
123
188
            return
 
189
        # Checker failed
124
190
        if os.WIFEXITED(condition):
125
 
            self.logger(u'Checker for client %s (command "%s")'
126
 
                        u' failed with exit code %s'
127
 
                        % (self.properties[u"name"], command,
128
 
                           os.WEXITSTATUS(condition)))
129
 
            return
130
 
        if os.WIFSIGNALED(condition):
131
 
            self.logger(u'Checker for client %s (command "%s")'
132
 
                        u' was killed by signal %s'
133
 
                        % (self.properties[u"name"], command,
134
 
                           os.WTERMSIG(condition)))
135
 
            return
136
 
        if os.WCOREDUMP(condition):
137
 
            self.logger(u'Checker for client %s (command "%s")'
138
 
                        u' dumped core'
139
 
                        % (self.properties[u"name"], command))
140
 
        self.logger(u'Checker for client %s completed mysteriously')
 
191
            self.logger('Checker for client {} (command "{}") failed'
 
192
                        ' with exit code {}'
 
193
                        .format(self.properties["Name"], command,
 
194
                                os.WEXITSTATUS(condition)))
 
195
        elif os.WIFSIGNALED(condition):
 
196
            self.logger('Checker for client {} (command "{}") was'
 
197
                        ' killed by signal {}'
 
198
                        .format(self.properties["Name"], command,
 
199
                                os.WTERMSIG(condition)))
 
200
        self.update()
141
201
    
142
202
    def checker_started(self, command):
143
 
        #self.logger(u'Client %s started checker "%s"'
144
 
        #            % (self.properties[u"name"], unicode(command)))
145
 
        pass
 
203
        """Server signals that a checker started."""
 
204
        self.logger('Client {} started checker "{}"'
 
205
                    .format(self.properties["Name"],
 
206
                            command), level=0)
146
207
    
147
208
    def got_secret(self):
148
 
        self.logger(u'Client %s received its secret'
149
 
                    % self.properties[u"name"])
 
209
        self.logger('Client {} received its secret'
 
210
                    .format(self.properties["Name"]))
150
211
    
151
212
    def need_approval(self, timeout, default):
152
213
        if not default:
153
 
            message = u'Client %s needs approval within %s seconds'
 
214
            message = 'Client {} needs approval within {} seconds'
154
215
        else:
155
 
            message = u'Client %s will get its secret in %s seconds'
156
 
        self.logger(message
157
 
                    % (self.properties[u"name"], timeout/1000))
 
216
            message = 'Client {} will get its secret in {} seconds'
 
217
        self.logger(message.format(self.properties["Name"],
 
218
                                   timeout/1000))
158
219
    
159
220
    def rejected(self, reason):
160
 
        self.logger(u'Client %s was rejected; reason: %s'
161
 
                    % (self.properties[u"name"], reason))
 
221
        self.logger('Client {} was rejected; reason: {}'
 
222
                    .format(self.properties["Name"], reason))
162
223
    
163
224
    def selectable(self):
164
225
        """Make this a "selectable" widget.
165
226
        This overrides the method from urwid.FlowWidget."""
166
227
        return True
167
228
    
168
 
    def rows(self, (maxcol,), focus=False):
 
229
    def rows(self, maxcolrow, focus=False):
169
230
        """How many rows this widget will occupy might depend on
170
231
        whether we have focus or not.
171
232
        This overrides the method from urwid.FlowWidget"""
172
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
233
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
173
234
    
174
235
    def current_widget(self, focus=False):
175
236
        if focus or self.opened:
179
240
    def update(self):
180
241
        "Called when what is visible on the screen should be updated."
181
242
        # How to add standout mode to a style
182
 
        with_standout = { u"normal": u"standout",
183
 
                          u"bold": u"bold-standout",
184
 
                          u"underline-blink":
185
 
                              u"underline-blink-standout",
186
 
                          u"bold-underline-blink":
187
 
                              u"bold-underline-blink-standout",
 
243
        with_standout = { "normal": "standout",
 
244
                          "bold": "bold-standout",
 
245
                          "underline-blink":
 
246
                              "underline-blink-standout",
 
247
                          "bold-underline-blink":
 
248
                              "bold-underline-blink-standout",
188
249
                          }
189
 
 
 
250
        
190
251
        # Rebuild focus and non-focus widgets using current properties
191
 
 
 
252
        
192
253
        # Base part of a client. Name!
193
 
        self._text = (u'%(name)s: '
194
 
                      % {u"name": self.properties[u"name"]})
195
 
 
196
 
        if self.properties[u"approved_pending"]:
197
 
            if self.properties[u"approved_by_default"]:
198
 
                self._text += u"Connection established to client. (d)eny?"
199
 
            else:
200
 
                self._text += u"Seeks approval to send secret. (a)pprove?"
 
254
        base = '{name}: '.format(name=self.properties["Name"])
 
255
        if not self.properties["Enabled"]:
 
256
            message = "DISABLED"
 
257
            self.using_timer(False)
 
258
        elif self.properties["ApprovalPending"]:
 
259
            timeout = datetime.timedelta(milliseconds
 
260
                                         = self.properties
 
261
                                         ["ApprovalDelay"])
 
262
            last_approval_request = isoformat_to_datetime(
 
263
                self.properties["LastApprovalRequest"])
 
264
            if last_approval_request is not None:
 
265
                timer = max(timeout - (datetime.datetime.utcnow()
 
266
                                       - last_approval_request),
 
267
                            datetime.timedelta())
 
268
            else:
 
269
                timer = datetime.timedelta()
 
270
            if self.properties["ApprovedByDefault"]:
 
271
                message = "Approval in {}. (d)eny?"
 
272
            else:
 
273
                message = "Denial in {}. (a)pprove?"
 
274
            message = message.format(str(timer).rsplit(".", 1)[0])
 
275
            self.using_timer(True)
 
276
        elif self.properties["LastCheckerStatus"] != 0:
 
277
            # When checker has failed, show timer until client expires
 
278
            expires = self.properties["Expires"]
 
279
            if expires == "":
 
280
                timer = datetime.timedelta(0)
 
281
            else:
 
282
                expires = (datetime.datetime.strptime
 
283
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
284
                timer = max(expires - datetime.datetime.utcnow(),
 
285
                            datetime.timedelta())
 
286
            message = ('A checker has failed! Time until client'
 
287
                       ' gets disabled: {}'
 
288
                       .format(str(timer).rsplit(".", 1)[0]))
 
289
            self.using_timer(True)
201
290
        else:
202
 
            self._text += (u'%(enabled)s'
203
 
                           % {u"enabled":
204
 
                               (u"enabled"
205
 
                                if self.properties[u"enabled"]
206
 
                                else u"DISABLED")})
 
291
            message = "enabled"
 
292
            self.using_timer(False)
 
293
        self._text = "{}{}".format(base, message)
 
294
        
207
295
        if not urwid.supports_unicode():
208
296
            self._text = self._text.encode("ascii", "replace")
209
 
        textlist = [(u"normal", self._text)]
 
297
        textlist = [("normal", self._text)]
210
298
        self._text_widget.set_text(textlist)
211
299
        self._focus_text_widget.set_text([(with_standout[text[0]],
212
300
                                           text[1])
220
308
        if self.update_hook is not None:
221
309
            self.update_hook()
222
310
    
223
 
    def delete(self):
 
311
    def update_timer(self):
 
312
        """called by GObject. Will indefinitely loop until
 
313
        GObject.source_remove() on tag is called"""
 
314
        self.update()
 
315
        return True             # Keep calling this
 
316
    
 
317
    def delete(self, **kwargs):
 
318
        if self._update_timer_callback_tag is not None:
 
319
            GObject.source_remove(self._update_timer_callback_tag)
 
320
            self._update_timer_callback_tag = None
 
321
        for match in self.match_objects:
 
322
            match.remove()
 
323
        self.match_objects = ()
224
324
        if self.delete_hook is not None:
225
325
            self.delete_hook(self)
 
326
        return super(MandosClientWidget, self).delete(**kwargs)
226
327
    
227
 
    def render(self, (maxcol,), focus=False):
 
328
    def render(self, maxcolrow, focus=False):
228
329
        """Render differently if we have focus.
229
330
        This overrides the method from urwid.FlowWidget"""
230
 
        return self.current_widget(focus).render((maxcol,),
 
331
        return self.current_widget(focus).render(maxcolrow,
231
332
                                                 focus=focus)
232
333
    
233
 
    def keypress(self, (maxcol,), key):
 
334
    def keypress(self, maxcolrow, key):
234
335
        """Handle keys.
235
336
        This overrides the method from urwid.FlowWidget"""
236
 
        if key == u"+":
237
 
            self.proxy.Enable(dbus_interface = client_interface)
238
 
        elif key == u"-":
239
 
            self.proxy.Disable(dbus_interface = client_interface)
240
 
        elif key == u"a":
 
337
        if key == "+":
 
338
            self.proxy.Set(client_interface, "Enabled",
 
339
                           dbus.Boolean(True), ignore_reply = True,
 
340
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
341
        elif key == "-":
 
342
            self.proxy.Set(client_interface, "Enabled", False,
 
343
                           ignore_reply = True,
 
344
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
345
        elif key == "a":
241
346
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
242
 
                               dbus_interface = client_interface)
243
 
        elif key == u"d":
 
347
                               dbus_interface = client_interface,
 
348
                               ignore_reply=True)
 
349
        elif key == "d":
244
350
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
245
 
                                  dbus_interface = client_interface)
246
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
351
                                  dbus_interface = client_interface,
 
352
                               ignore_reply=True)
 
353
        elif key == "R" or key == "_" or key == "ctrl k":
247
354
            self.server_proxy_object.RemoveClient(self.proxy
248
 
                                                  .object_path)
249
 
        elif key == u"s":
250
 
            self.proxy.StartChecker(dbus_interface = client_interface)
251
 
        elif key == u"S":
252
 
            self.proxy.StopChecker(dbus_interface = client_interface)
253
 
        elif key == u"C":
254
 
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
355
                                                  .object_path,
 
356
                                                  ignore_reply=True)
 
357
        elif key == "s":
 
358
            self.proxy.Set(client_interface, "CheckerRunning",
 
359
                           dbus.Boolean(True), ignore_reply = True,
 
360
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
361
        elif key == "S":
 
362
            self.proxy.Set(client_interface, "CheckerRunning",
 
363
                           dbus.Boolean(False), ignore_reply = True,
 
364
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
365
        elif key == "C":
 
366
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
367
                                 ignore_reply=True)
255
368
        # xxx
256
 
#         elif key == u"p" or key == "=":
 
369
#         elif key == "p" or key == "=":
257
370
#             self.proxy.pause()
258
 
#         elif key == u"u" or key == ":":
 
371
#         elif key == "u" or key == ":":
259
372
#             self.proxy.unpause()
260
 
#         elif key == u"RET":
 
373
#         elif key == "RET":
261
374
#             self.open()
262
 
#        elif key == u"+":
263
 
#            self.proxy.Approve(True)
264
 
#        elif key == u"-":
265
 
#            self.proxy.Approve(False)
266
375
        else:
267
376
            return key
268
377
    
269
 
    def property_changed(self, property=None, value=None,
270
 
                         *args, **kwargs):
271
 
        """Call self.update() if old value is not new value.
 
378
    def properties_changed(self, interface, properties, invalidated):
 
379
        """Call self.update() if any properties changed.
272
380
        This overrides the method from MandosClientPropertyCache"""
273
 
        property_name = unicode(property)
274
 
        old_value = self.properties.get(property_name)
275
 
        super(MandosClientWidget, self).property_changed(
276
 
            property=property, value=value, *args, **kwargs)
277
 
        if self.properties.get(property_name) != old_value:
 
381
        old_values = { key: self.properties.get(key)
 
382
                       for key in properties.keys() }
 
383
        super(MandosClientWidget, self).properties_changed(
 
384
            interface, properties, invalidated)
 
385
        if any(old_values[key] != self.properties.get(key)
 
386
               for key in old_values):
278
387
            self.update()
279
388
 
280
389
 
283
392
    "down" key presses, thus not allowing any containing widgets to
284
393
    use them as an excuse to shift focus away from this widget.
285
394
    """
286
 
    def keypress(self, (maxcol, maxrow), key):
287
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
288
 
        if ret in (u"up", u"down"):
 
395
    def keypress(self, *args, **kwargs):
 
396
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
397
        if ret in ("up", "down"):
289
398
            return
290
399
        return ret
291
400
 
294
403
    """This is the entire user interface - the whole screen
295
404
    with boxes, lists of client widgets, etc.
296
405
    """
297
 
    def __init__(self, max_log_length=1000):
 
406
    def __init__(self, max_log_length=1000, log_level=1):
298
407
        DBusGMainLoop(set_as_default=True)
299
408
        
300
409
        self.screen = urwid.curses_display.Screen()
301
410
        
302
411
        self.screen.register_palette((
303
 
                (u"normal",
304
 
                 u"default", u"default", None),
305
 
                (u"bold",
306
 
                 u"default", u"default", u"bold"),
307
 
                (u"underline-blink",
308
 
                 u"default", u"default", u"underline"),
309
 
                (u"standout",
310
 
                 u"default", u"default", u"standout"),
311
 
                (u"bold-underline-blink",
312
 
                 u"default", u"default", (u"bold", u"underline")),
313
 
                (u"bold-standout",
314
 
                 u"default", u"default", (u"bold", u"standout")),
315
 
                (u"underline-blink-standout",
316
 
                 u"default", u"default", (u"underline", u"standout")),
317
 
                (u"bold-underline-blink-standout",
318
 
                 u"default", u"default", (u"bold", u"underline",
319
 
                                          u"standout")),
 
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", "bold,underline,blink"),
 
422
                ("bold-standout",
 
423
                 "bold,standout", "default", "bold,standout"),
 
424
                ("underline-blink-standout",
 
425
                 "underline,blink,standout", "default",
 
426
                 "underline,blink,standout"),
 
427
                ("bold-underline-blink-standout",
 
428
                 "bold,underline,blink,standout", "default",
 
429
                 "bold,underline,blink,standout"),
320
430
                ))
321
431
        
322
432
        if urwid.supports_unicode():
323
 
            self.divider = u"─" # \u2500
324
 
            #self.divider = u"━" # \u2501
 
433
            self.divider = "─" # \u2500
 
434
            #self.divider = "━" # \u2501
325
435
        else:
326
 
            #self.divider = u"-" # \u002d
327
 
            self.divider = u"_" # \u005f
 
436
            #self.divider = "-" # \u002d
 
437
            self.divider = "_" # \u005f
328
438
        
329
439
        self.screen.start()
330
440
        
337
447
        self.log = []
338
448
        self.max_log_length = max_log_length
339
449
        
 
450
        self.log_level = log_level
 
451
        
340
452
        # We keep a reference to the log widget so we can remove it
341
453
        # from the ListWalker without it getting destroyed
342
454
        self.logbox = ConstrainedListBox(self.log)
344
456
        # This keeps track of whether self.uilist currently has
345
457
        # self.logbox in it or not
346
458
        self.log_visible = True
347
 
        self.log_wrap = u"any"
 
459
        self.log_wrap = "any"
348
460
        
349
461
        self.rebuild()
350
 
        self.log_message_raw((u"bold",
351
 
                              u"Mandos Monitor version " + version))
352
 
        self.log_message_raw((u"bold",
353
 
                              u"q: Quit  ?: Help"))
 
462
        self.log_message_raw(("bold",
 
463
                              "Mandos Monitor version " + version))
 
464
        self.log_message_raw(("bold",
 
465
                              "q: Quit  ?: Help"))
354
466
        
355
467
        self.busname = domain + '.Mandos'
356
 
        self.main_loop = gobject.MainLoop()
357
 
        self.bus = dbus.SystemBus()
358
 
        mandos_dbus_objc = self.bus.get_object(
359
 
            self.busname, u"/", follow_name_owner_changes=True)
360
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
361
 
                                          dbus_interface
362
 
                                          = server_interface)
363
 
        try:
364
 
            mandos_clients = (self.mandos_serv
365
 
                              .GetAllClientsWithProperties())
366
 
        except dbus.exceptions.DBusException:
367
 
            mandos_clients = dbus.Dictionary()
368
 
        
369
 
        (self.mandos_serv
370
 
         .connect_to_signal(u"ClientRemoved",
371
 
                            self.find_and_remove_client,
372
 
                            dbus_interface=server_interface,
373
 
                            byte_arrays=True))
374
 
        (self.mandos_serv
375
 
         .connect_to_signal(u"ClientAdded",
376
 
                            self.add_new_client,
377
 
                            dbus_interface=server_interface,
378
 
                            byte_arrays=True))
379
 
        (self.mandos_serv
380
 
         .connect_to_signal(u"ClientNotFound",
381
 
                            self.client_not_found,
382
 
                            dbus_interface=server_interface,
383
 
                            byte_arrays=True))
384
 
        for path, client in mandos_clients.iteritems():
385
 
            client_proxy_object = self.bus.get_object(self.busname,
386
 
                                                      path)
387
 
            self.add_client(MandosClientWidget(server_proxy_object
388
 
                                               =self.mandos_serv,
389
 
                                               proxy_object
390
 
                                               =client_proxy_object,
391
 
                                               properties=client,
392
 
                                               update_hook
393
 
                                               =self.refresh,
394
 
                                               delete_hook
395
 
                                               =self.remove_client,
396
 
                                               logger
397
 
                                               =self.log_message),
398
 
                            path=path)
 
468
        self.main_loop = GObject.MainLoop()
399
469
    
400
470
    def client_not_found(self, fingerprint, address):
401
 
        self.log_message((u"Client with address %s and fingerprint %s"
402
 
                          u" could not be found" % (address,
403
 
                                                    fingerprint)))
 
471
        self.log_message("Client with address {} and fingerprint {}"
 
472
                         " could not be found"
 
473
                         .format(address, fingerprint))
404
474
    
405
475
    def rebuild(self):
406
476
        """This rebuilds the User Interface.
407
477
        Call this when the widget layout needs to change"""
408
478
        self.uilist = []
409
479
        #self.uilist.append(urwid.ListBox(self.clients))
410
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
480
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
481
                                                          clients),
411
482
                                       #header=urwid.Divider(),
412
483
                                       header=None,
413
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
484
                                       footer=
 
485
                                       urwid.Divider(div_char=
 
486
                                                     self.divider)))
414
487
        if self.log_visible:
415
488
            self.uilist.append(self.logbox)
416
 
            pass
417
489
        self.topwidget = urwid.Pile(self.uilist)
418
490
    
419
 
    def log_message(self, message):
 
491
    def log_message(self, message, level=1):
 
492
        """Log message formatted with timestamp"""
 
493
        if level < self.log_level:
 
494
            return
420
495
        timestamp = datetime.datetime.now().isoformat()
421
 
        self.log_message_raw(timestamp + u": " + message)
 
496
        self.log_message_raw("{}: {}".format(timestamp, message),
 
497
                             level=level)
422
498
    
423
 
    def log_message_raw(self, markup):
 
499
    def log_message_raw(self, markup, level=1):
424
500
        """Add a log message to the log buffer."""
 
501
        if level < self.log_level:
 
502
            return
425
503
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
426
504
        if (self.max_log_length
427
505
            and len(self.log) > self.max_log_length):
428
506
            del self.log[0:len(self.log)-self.max_log_length-1]
429
507
        self.logbox.set_focus(len(self.logbox.body.contents),
430
 
                              coming_from=u"above")
 
508
                              coming_from="above")
431
509
        self.refresh()
432
510
    
433
511
    def toggle_log_display(self):
434
512
        """Toggle visibility of the log buffer."""
435
513
        self.log_visible = not self.log_visible
436
514
        self.rebuild()
437
 
        self.log_message(u"Log visibility changed to: "
438
 
                         + unicode(self.log_visible))
 
515
        self.log_message("Log visibility changed to: {}"
 
516
                         .format(self.log_visible), level=0)
439
517
    
440
518
    def change_log_display(self):
441
519
        """Change type of log display.
442
520
        Currently, this toggles wrapping of text lines."""
443
 
        if self.log_wrap == u"clip":
444
 
            self.log_wrap = u"any"
 
521
        if self.log_wrap == "clip":
 
522
            self.log_wrap = "any"
445
523
        else:
446
 
            self.log_wrap = u"clip"
 
524
            self.log_wrap = "clip"
447
525
        for textwidget in self.log:
448
526
            textwidget.set_wrap_mode(self.log_wrap)
449
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
527
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
528
                         level=0)
450
529
    
451
 
    def find_and_remove_client(self, path, name):
452
 
        """Find an client from its object path and remove it.
 
530
    def find_and_remove_client(self, path, interfaces):
 
531
        """Find a client by its object path and remove it.
453
532
        
454
 
        This is connected to the ClientRemoved signal from the
 
533
        This is connected to the InterfacesRemoved signal from the
455
534
        Mandos server object."""
 
535
        if client_interface not in interfaces:
 
536
            # Not a Mandos client object; ignore
 
537
            return
456
538
        try:
457
539
            client = self.clients_dict[path]
458
540
        except KeyError:
459
541
            # not found?
 
542
            self.log_message("Unknown client {!r} removed"
 
543
                             .format(path))
460
544
            return
461
 
        self.remove_client(client, path)
 
545
        client.delete()
462
546
    
463
 
    def add_new_client(self, path):
 
547
    def add_new_client(self, path, ifs_and_props):
 
548
        """Find a client by its object path and remove it.
 
549
        
 
550
        This is connected to the InterfacesAdded signal from the
 
551
        Mandos server object.
 
552
        """
 
553
        if client_interface not in ifs_and_props:
 
554
            # Not a Mandos client object; ignore
 
555
            return
464
556
        client_proxy_object = self.bus.get_object(self.busname, path)
465
557
        self.add_client(MandosClientWidget(server_proxy_object
466
558
                                           =self.mandos_serv,
471
563
                                           delete_hook
472
564
                                           =self.remove_client,
473
565
                                           logger
474
 
                                           =self.log_message),
 
566
                                           =self.log_message,
 
567
                                           properties
 
568
                                           = dict(ifs_and_props[
 
569
                                               client_interface])),
475
570
                        path=path)
476
571
    
477
572
    def add_client(self, client, path=None):
479
574
        if path is None:
480
575
            path = client.proxy.object_path
481
576
        self.clients_dict[path] = client
482
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
577
        self.clients.sort(key=lambda c: c.properties["Name"])
483
578
        self.refresh()
484
579
    
485
580
    def remove_client(self, client, path=None):
487
582
        if path is None:
488
583
            path = client.proxy.object_path
489
584
        del self.clients_dict[path]
490
 
        if not self.clients_dict:
491
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
492
 
            # is completely emptied, we need to recreate it.
493
 
            self.clients = urwid.SimpleListWalker([])
494
 
            self.rebuild()
495
585
        self.refresh()
496
586
    
497
587
    def refresh(self):
501
591
    
502
592
    def run(self):
503
593
        """Start the main loop and exit when it's done."""
 
594
        self.bus = dbus.SystemBus()
 
595
        mandos_dbus_objc = self.bus.get_object(
 
596
            self.busname, "/", follow_name_owner_changes=True)
 
597
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
598
                                          dbus_interface
 
599
                                          = server_interface)
 
600
        try:
 
601
            mandos_clients = (self.mandos_serv
 
602
                              .GetAllClientsWithProperties())
 
603
            if not mandos_clients:
 
604
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
605
        except dbus.exceptions.DBusException:
 
606
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
607
            mandos_clients = dbus.Dictionary()
 
608
        
 
609
        (self.mandos_serv
 
610
         .connect_to_signal("InterfacesRemoved",
 
611
                            self.find_and_remove_client,
 
612
                            dbus_interface
 
613
                            = dbus.OBJECT_MANAGER_IFACE,
 
614
                            byte_arrays=True))
 
615
        (self.mandos_serv
 
616
         .connect_to_signal("InterfacesAdded",
 
617
                            self.add_new_client,
 
618
                            dbus_interface
 
619
                            = dbus.OBJECT_MANAGER_IFACE,
 
620
                            byte_arrays=True))
 
621
        (self.mandos_serv
 
622
         .connect_to_signal("ClientNotFound",
 
623
                            self.client_not_found,
 
624
                            dbus_interface=server_interface,
 
625
                            byte_arrays=True))
 
626
        for path, client in mandos_clients.items():
 
627
            client_proxy_object = self.bus.get_object(self.busname,
 
628
                                                      path)
 
629
            self.add_client(MandosClientWidget(server_proxy_object
 
630
                                               =self.mandos_serv,
 
631
                                               proxy_object
 
632
                                               =client_proxy_object,
 
633
                                               properties=client,
 
634
                                               update_hook
 
635
                                               =self.refresh,
 
636
                                               delete_hook
 
637
                                               =self.remove_client,
 
638
                                               logger
 
639
                                               =self.log_message),
 
640
                            path=path)
 
641
        
504
642
        self.refresh()
505
 
        self._input_callback_tag = (gobject.io_add_watch
 
643
        self._input_callback_tag = (GObject.io_add_watch
506
644
                                    (sys.stdin.fileno(),
507
 
                                     gobject.IO_IN,
 
645
                                     GObject.IO_IN,
508
646
                                     self.process_input))
509
647
        self.main_loop.run()
510
648
        # Main loop has finished, we should close everything now
511
 
        gobject.source_remove(self._input_callback_tag)
 
649
        GObject.source_remove(self._input_callback_tag)
512
650
        self.screen.stop()
513
651
    
514
652
    def stop(self):
516
654
    
517
655
    def process_input(self, source, condition):
518
656
        keys = self.screen.get_input()
519
 
        translations = { u"ctrl n": u"down",      # Emacs
520
 
                         u"ctrl p": u"up",        # Emacs
521
 
                         u"ctrl v": u"page down", # Emacs
522
 
                         u"meta v": u"page up",   # Emacs
523
 
                         u" ": u"page down",      # less
524
 
                         u"f": u"page down",      # less
525
 
                         u"b": u"page up",        # less
526
 
                         u"j": u"down",           # vi
527
 
                         u"k": u"up",             # vi
 
657
        translations = { "ctrl n": "down",      # Emacs
 
658
                         "ctrl p": "up",        # Emacs
 
659
                         "ctrl v": "page down", # Emacs
 
660
                         "meta v": "page up",   # Emacs
 
661
                         " ": "page down",      # less
 
662
                         "f": "page down",      # less
 
663
                         "b": "page up",        # less
 
664
                         "j": "down",           # vi
 
665
                         "k": "up",             # vi
528
666
                         }
529
667
        for key in keys:
530
668
            try:
532
670
            except KeyError:    # :-)
533
671
                pass
534
672
            
535
 
            if key == u"q" or key == u"Q":
 
673
            if key == "q" or key == "Q":
536
674
                self.stop()
537
675
                break
538
 
            elif key == u"window resize":
 
676
            elif key == "window resize":
539
677
                self.size = self.screen.get_cols_rows()
540
678
                self.refresh()
541
 
            elif key == u"\f":  # Ctrl-L
 
679
            elif key == "ctrl l":
 
680
                self.screen.clear()
542
681
                self.refresh()
543
 
            elif key == u"l" or key == u"D":
 
682
            elif key == "l" or key == "D":
544
683
                self.toggle_log_display()
545
684
                self.refresh()
546
 
            elif key == u"w" or key == u"i":
 
685
            elif key == "w" or key == "i":
547
686
                self.change_log_display()
548
687
                self.refresh()
549
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
688
            elif key == "?" or key == "f1" or key == "esc":
550
689
                if not self.log_visible:
551
690
                    self.log_visible = True
552
691
                    self.rebuild()
553
 
                self.log_message_raw((u"bold",
554
 
                                      u"  ".
555
 
                                      join((u"q: Quit",
556
 
                                            u"?: Help",
557
 
                                            u"l: Log window toggle",
558
 
                                            u"TAB: Switch window",
559
 
                                            u"w: Wrap (log)"))))
560
 
                self.log_message_raw((u"bold",
561
 
                                      u"  "
562
 
                                      .join((u"Clients:",
563
 
                                             u"+: Enable",
564
 
                                             u"-: Disable",
565
 
                                             u"r: Remove",
566
 
                                             u"s: Start new checker",
567
 
                                             u"S: Stop checker",
568
 
                                             u"C: Checker OK",
569
 
                                             u"a: Approve",
570
 
                                             u"d: Deny"))))
 
692
                self.log_message_raw(("bold",
 
693
                                      "  ".
 
694
                                      join(("q: Quit",
 
695
                                            "?: Help",
 
696
                                            "l: Log window toggle",
 
697
                                            "TAB: Switch window",
 
698
                                            "w: Wrap (log lines)",
 
699
                                            "v: Toggle verbose log",
 
700
                                            ))))
 
701
                self.log_message_raw(("bold",
 
702
                                      "  "
 
703
                                      .join(("Clients:",
 
704
                                             "+: Enable",
 
705
                                             "-: Disable",
 
706
                                             "R: Remove",
 
707
                                             "s: Start new checker",
 
708
                                             "S: Stop checker",
 
709
                                             "C: Checker OK",
 
710
                                             "a: Approve",
 
711
                                             "d: Deny"))))
571
712
                self.refresh()
572
 
            elif key == u"tab":
 
713
            elif key == "tab":
573
714
                if self.topwidget.get_focus() is self.logbox:
574
715
                    self.topwidget.set_focus(0)
575
716
                else:
576
717
                    self.topwidget.set_focus(self.logbox)
577
718
                self.refresh()
578
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
579
 
            #      or key == u">"):
 
719
            elif key == "v":
 
720
                if self.log_level == 0:
 
721
                    self.log_level = 1
 
722
                    self.log_message("Verbose mode: Off")
 
723
                else:
 
724
                    self.log_level = 0
 
725
                    self.log_message("Verbose mode: On")
 
726
            #elif (key == "end" or key == "meta >" or key == "G"
 
727
            #      or key == ">"):
580
728
            #    pass            # xxx end-of-buffer
581
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
582
 
            #      or key == u"<"):
 
729
            #elif (key == "home" or key == "meta <" or key == "g"
 
730
            #      or key == "<"):
583
731
            #    pass            # xxx beginning-of-buffer
584
 
            #elif key == u"ctrl e" or key == u"$":
 
732
            #elif key == "ctrl e" or key == "$":
585
733
            #    pass            # xxx move-end-of-line
586
 
            #elif key == u"ctrl a" or key == u"^":
 
734
            #elif key == "ctrl a" or key == "^":
587
735
            #    pass            # xxx move-beginning-of-line
588
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
736
            #elif key == "ctrl b" or key == "meta (" or key == "h":
589
737
            #    pass            # xxx left
590
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
738
            #elif key == "ctrl f" or key == "meta )" or key == "l":
591
739
            #    pass            # xxx right
592
 
            #elif key == u"a":
 
740
            #elif key == "a":
593
741
            #    pass            # scroll up log
594
 
            #elif key == u"z":
 
742
            #elif key == "z":
595
743
            #    pass            # scroll down log
596
744
            elif self.topwidget.selectable():
597
745
                self.topwidget.keypress(self.size, key)
601
749
ui = UserInterface()
602
750
try:
603
751
    ui.run()
604
 
except Exception, e:
605
 
    ui.log_message(unicode(e))
 
752
except KeyboardInterrupt:
 
753
    ui.screen.stop()
 
754
except Exception as e:
 
755
    ui.log_message(str(e))
606
756
    ui.screen.stop()
607
757
    raise