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  • Committer: Teddy Hogeborn
  • Date: 2016-03-13 00:37:02 UTC
  • Revision ID: teddy@recompile.se-20160313003702-dulwtwt8ilpojra9
Server: Fix bug where it did not exit timely on signals

Use GLib.unix_signal_add() instead of signal.signal() to catch
signals; this will allow GLib to do its internal magic with signal
file descriptors.  (GLib does not handle signals properly otherwise.)
The function unix_signal_add() requires GLib 2.30 or later, which was
not required by PyGobject until version 3.7.1, so depend on this.

* INSTALL (Mandos Server): Document dependency on PyGObject 3.7.1
* mandos (main): Use GLib.unix_signal_add instead of signal.signal.
* init.d-mandos (do_stop): Remove workaround.
* mandos.service ([Service]): - '' -

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Lines of Context:
mandos-monitor
1
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
 
3
# 
 
4
# Mandos Monitor - Control and monitor the Mandos server
 
5
# 
 
6
# Copyright © 2009-2016 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
from gi.repository import GLib
17
43
 
18
44
import dbus
19
45
 
20
 
import UserList
21
 
 
22
46
import locale
23
47
 
24
 
locale.setlocale(locale.LC_ALL, u'')
 
48
if sys.version_info.major == 2:
 
49
    str = unicode
 
50
 
 
51
locale.setlocale(locale.LC_ALL, '')
25
52
 
26
53
import logging
27
54
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
28
55
 
29
56
# Some useful constants
30
 
domain = 'se.bsnet.fukt'
 
57
domain = 'se.recompile'
31
58
server_interface = domain + '.Mandos'
32
59
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)
 
60
version = "1.7.5"
 
61
 
 
62
try:
 
63
    dbus.OBJECT_MANAGER_IFACE
 
64
except AttributeError:
 
65
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
66
 
 
67
def isoformat_to_datetime(iso):
 
68
    "Parse an ISO 8601 date string to a datetime.datetime()"
 
69
    if not iso:
 
70
        return None
 
71
    d, t = iso.split("T", 1)
 
72
    year, month, day = d.split("-", 2)
 
73
    hour, minute, second = t.split(":", 2)
 
74
    second, fraction = divmod(float(second), 1)
 
75
    return datetime.datetime(int(year),
 
76
                             int(month),
 
77
                             int(day),
 
78
                             int(hour),
 
79
                             int(minute),
 
80
                             int(second),           # Whole seconds
 
81
                             int(fraction*1000000)) # Microseconds
42
82
 
43
83
class MandosClientPropertyCache(object):
44
84
    """This wraps a Mandos Client D-Bus proxy object, caches the
45
85
    properties and calls a hook function when any of them are
46
86
    changed.
47
87
    """
48
 
    def __init__(self, proxy_object=None, *args, **kwargs):
 
88
    def __init__(self, proxy_object=None, properties=None, **kwargs):
49
89
        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)
 
90
        self.properties = dict() if properties is None else properties
 
91
        self.property_changed_match = (
 
92
            self.proxy.connect_to_signal("PropertiesChanged",
 
93
                                         self.properties_changed,
 
94
                                         dbus.PROPERTIES_IFACE,
 
95
                                         byte_arrays=True))
 
96
        
 
97
        if properties is None:
 
98
            self.properties.update(
 
99
                self.proxy.GetAll(client_interface,
 
100
                                  dbus_interface
 
101
                                  = dbus.PROPERTIES_IFACE))
 
102
        
 
103
        super(MandosClientPropertyCache, self).__init__(**kwargs)
64
104
    
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.
 
105
    def properties_changed(self, interface, properties, invalidated):
 
106
        """This is called whenever we get a PropertiesChanged signal
 
107
        It updates the changed properties in the "properties" dict.
68
108
        """
69
109
        # Update properties dict with new value
70
 
        self.properties[property] = value
 
110
        if interface == client_interface:
 
111
            self.properties.update(properties)
 
112
    
 
113
    def delete(self):
 
114
        self.property_changed_match.remove()
71
115
 
72
116
 
73
117
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
75
119
    """
76
120
    
77
121
    def __init__(self, server_proxy_object=None, update_hook=None,
78
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
122
                 delete_hook=None, logger=None, **kwargs):
79
123
        # Called on update
80
124
        self.update_hook = update_hook
81
125
        # Called on delete
85
129
        # Logger
86
130
        self.logger = logger
87
131
        
 
132
        self._update_timer_callback_tag = None
 
133
        
88
134
        # The widget shown normally
89
 
        self._text_widget = urwid.Text(u"")
 
135
        self._text_widget = urwid.Text("")
90
136
        # 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)
 
137
        self._focus_text_widget = urwid.Text("")
 
138
        super(MandosClientWidget, self).__init__(**kwargs)
95
139
        self.update()
96
140
        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)
 
141
        
 
142
        self.match_objects = (
 
143
            self.proxy.connect_to_signal("CheckerCompleted",
 
144
                                         self.checker_completed,
 
145
                                         client_interface,
 
146
                                         byte_arrays=True),
 
147
            self.proxy.connect_to_signal("CheckerStarted",
 
148
                                         self.checker_started,
 
149
                                         client_interface,
 
150
                                         byte_arrays=True),
 
151
            self.proxy.connect_to_signal("GotSecret",
 
152
                                         self.got_secret,
 
153
                                         client_interface,
 
154
                                         byte_arrays=True),
 
155
            self.proxy.connect_to_signal("NeedApproval",
 
156
                                         self.need_approval,
 
157
                                         client_interface,
 
158
                                         byte_arrays=True),
 
159
            self.proxy.connect_to_signal("Rejected",
 
160
                                         self.rejected,
 
161
                                         client_interface,
 
162
                                         byte_arrays=True))
 
163
        self.logger('Created client {}'
 
164
                    .format(self.properties["Name"]), level=0)
 
165
    
 
166
    def using_timer(self, flag):
 
167
        """Call this method with True or False when timer should be
 
168
        activated or deactivated.
 
169
        """
 
170
        if flag and self._update_timer_callback_tag is None:
 
171
            # Will update the shown timer value every second
 
172
            self._update_timer_callback_tag = (GLib.timeout_add
 
173
                                               (1000,
 
174
                                                self.update_timer))
 
175
        elif not (flag or self._update_timer_callback_tag is None):
 
176
            GLib.source_remove(self._update_timer_callback_tag)
 
177
            self._update_timer_callback_tag = None
117
178
    
118
179
    def checker_completed(self, exitstatus, condition, command):
119
180
        if exitstatus == 0:
120
 
            #self.logger(u'Checker for client %s (command "%s")'
121
 
            #            u' was successful'
122
 
            #            % (self.properties[u"name"], command))
 
181
            self.logger('Checker for client {} (command "{}")'
 
182
                        ' succeeded'.format(self.properties["Name"],
 
183
                                            command), level=0)
 
184
            self.update()
123
185
            return
 
186
        # Checker failed
124
187
        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')
 
188
            self.logger('Checker for client {} (command "{}") failed'
 
189
                        ' with exit code {}'
 
190
                        .format(self.properties["Name"], command,
 
191
                                os.WEXITSTATUS(condition)))
 
192
        elif os.WIFSIGNALED(condition):
 
193
            self.logger('Checker for client {} (command "{}") was'
 
194
                        ' killed by signal {}'
 
195
                        .format(self.properties["Name"], command,
 
196
                                os.WTERMSIG(condition)))
 
197
        self.update()
141
198
    
142
199
    def checker_started(self, command):
143
 
        #self.logger(u'Client %s started checker "%s"'
144
 
        #            % (self.properties[u"name"], unicode(command)))
145
 
        pass
 
200
        """Server signals that a checker started."""
 
201
        self.logger('Client {} started checker "{}"'
 
202
                    .format(self.properties["Name"],
 
203
                            command), level=0)
146
204
    
147
205
    def got_secret(self):
148
 
        self.logger(u'Client %s received its secret'
149
 
                    % self.properties[u"name"])
 
206
        self.logger('Client {} received its secret'
 
207
                    .format(self.properties["Name"]))
150
208
    
151
209
    def need_approval(self, timeout, default):
152
210
        if not default:
153
 
            message = u'Client %s needs approval within %s seconds'
 
211
            message = 'Client {} needs approval within {} seconds'
154
212
        else:
155
 
            message = u'Client %s will get its secret in %s seconds'
156
 
        self.logger(message
157
 
                    % (self.properties[u"name"], timeout/1000))
 
213
            message = 'Client {} will get its secret in {} seconds'
 
214
        self.logger(message.format(self.properties["Name"],
 
215
                                   timeout/1000))
158
216
    
159
217
    def rejected(self, reason):
160
 
        self.logger(u'Client %s was rejected; reason: %s'
161
 
                    % (self.properties[u"name"], reason))
 
218
        self.logger('Client {} was rejected; reason: {}'
 
219
                    .format(self.properties["Name"], reason))
162
220
    
163
221
    def selectable(self):
164
222
        """Make this a "selectable" widget.
165
223
        This overrides the method from urwid.FlowWidget."""
166
224
        return True
167
225
    
168
 
    def rows(self, (maxcol,), focus=False):
 
226
    def rows(self, maxcolrow, focus=False):
169
227
        """How many rows this widget will occupy might depend on
170
228
        whether we have focus or not.
171
229
        This overrides the method from urwid.FlowWidget"""
172
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
230
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
173
231
    
174
232
    def current_widget(self, focus=False):
175
233
        if focus or self.opened:
179
237
    def update(self):
180
238
        "Called when what is visible on the screen should be updated."
181
239
        # 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",
 
240
        with_standout = { "normal": "standout",
 
241
                          "bold": "bold-standout",
 
242
                          "underline-blink":
 
243
                              "underline-blink-standout",
 
244
                          "bold-underline-blink":
 
245
                              "bold-underline-blink-standout",
188
246
                          }
189
 
 
 
247
        
190
248
        # Rebuild focus and non-focus widgets using current properties
191
 
 
 
249
        
192
250
        # 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?"
 
251
        base = '{name}: '.format(name=self.properties["Name"])
 
252
        if not self.properties["Enabled"]:
 
253
            message = "DISABLED"
 
254
            self.using_timer(False)
 
255
        elif self.properties["ApprovalPending"]:
 
256
            timeout = datetime.timedelta(milliseconds
 
257
                                         = self.properties
 
258
                                         ["ApprovalDelay"])
 
259
            last_approval_request = isoformat_to_datetime(
 
260
                self.properties["LastApprovalRequest"])
 
261
            if last_approval_request is not None:
 
262
                timer = max(timeout - (datetime.datetime.utcnow()
 
263
                                       - last_approval_request),
 
264
                            datetime.timedelta())
 
265
            else:
 
266
                timer = datetime.timedelta()
 
267
            if self.properties["ApprovedByDefault"]:
 
268
                message = "Approval in {}. (d)eny?"
 
269
            else:
 
270
                message = "Denial in {}. (a)pprove?"
 
271
            message = message.format(str(timer).rsplit(".", 1)[0])
 
272
            self.using_timer(True)
 
273
        elif self.properties["LastCheckerStatus"] != 0:
 
274
            # When checker has failed, show timer until client expires
 
275
            expires = self.properties["Expires"]
 
276
            if expires == "":
 
277
                timer = datetime.timedelta(0)
 
278
            else:
 
279
                expires = (datetime.datetime.strptime
 
280
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
281
                timer = max(expires - datetime.datetime.utcnow(),
 
282
                            datetime.timedelta())
 
283
            message = ('A checker has failed! Time until client'
 
284
                       ' gets disabled: {}'
 
285
                       .format(str(timer).rsplit(".", 1)[0]))
 
286
            self.using_timer(True)
201
287
        else:
202
 
            self._text += (u'%(enabled)s'
203
 
                           % {u"enabled":
204
 
                               (u"enabled"
205
 
                                if self.properties[u"enabled"]
206
 
                                else u"DISABLED")})
 
288
            message = "enabled"
 
289
            self.using_timer(False)
 
290
        self._text = "{}{}".format(base, message)
 
291
        
207
292
        if not urwid.supports_unicode():
208
293
            self._text = self._text.encode("ascii", "replace")
209
 
        textlist = [(u"normal", self._text)]
 
294
        textlist = [("normal", self._text)]
210
295
        self._text_widget.set_text(textlist)
211
296
        self._focus_text_widget.set_text([(with_standout[text[0]],
212
297
                                           text[1])
220
305
        if self.update_hook is not None:
221
306
            self.update_hook()
222
307
    
223
 
    def delete(self):
 
308
    def update_timer(self):
 
309
        """called by GLib. Will indefinitely loop until
 
310
        GLib.source_remove() on tag is called
 
311
        """
 
312
        self.update()
 
313
        return True             # Keep calling this
 
314
    
 
315
    def delete(self, **kwargs):
 
316
        if self._update_timer_callback_tag is not None:
 
317
            GLib.source_remove(self._update_timer_callback_tag)
 
318
            self._update_timer_callback_tag = None
 
319
        for match in self.match_objects:
 
320
            match.remove()
 
321
        self.match_objects = ()
224
322
        if self.delete_hook is not None:
225
323
            self.delete_hook(self)
 
324
        return super(MandosClientWidget, self).delete(**kwargs)
226
325
    
227
 
    def render(self, (maxcol,), focus=False):
 
326
    def render(self, maxcolrow, focus=False):
228
327
        """Render differently if we have focus.
229
328
        This overrides the method from urwid.FlowWidget"""
230
 
        return self.current_widget(focus).render((maxcol,),
 
329
        return self.current_widget(focus).render(maxcolrow,
231
330
                                                 focus=focus)
232
331
    
233
 
    def keypress(self, (maxcol,), key):
 
332
    def keypress(self, maxcolrow, key):
234
333
        """Handle keys.
235
334
        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":
 
335
        if key == "+":
 
336
            self.proxy.Set(client_interface, "Enabled",
 
337
                           dbus.Boolean(True), ignore_reply = True,
 
338
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
339
        elif key == "-":
 
340
            self.proxy.Set(client_interface, "Enabled", False,
 
341
                           ignore_reply = True,
 
342
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
343
        elif key == "a":
241
344
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
242
 
                               dbus_interface = client_interface)
243
 
        elif key == u"d":
 
345
                               dbus_interface = client_interface,
 
346
                               ignore_reply=True)
 
347
        elif key == "d":
244
348
            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":
 
349
                                  dbus_interface = client_interface,
 
350
                               ignore_reply=True)
 
351
        elif key == "R" or key == "_" or key == "ctrl k":
247
352
            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)
 
353
                                                  .object_path,
 
354
                                                  ignore_reply=True)
 
355
        elif key == "s":
 
356
            self.proxy.Set(client_interface, "CheckerRunning",
 
357
                           dbus.Boolean(True), ignore_reply = True,
 
358
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
359
        elif key == "S":
 
360
            self.proxy.Set(client_interface, "CheckerRunning",
 
361
                           dbus.Boolean(False), ignore_reply = True,
 
362
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
363
        elif key == "C":
 
364
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
365
                                 ignore_reply=True)
255
366
        # xxx
256
 
#         elif key == u"p" or key == "=":
 
367
#         elif key == "p" or key == "=":
257
368
#             self.proxy.pause()
258
 
#         elif key == u"u" or key == ":":
 
369
#         elif key == "u" or key == ":":
259
370
#             self.proxy.unpause()
260
 
#         elif key == u"RET":
 
371
#         elif key == "RET":
261
372
#             self.open()
262
 
#        elif key == u"+":
263
 
#            self.proxy.Approve(True)
264
 
#        elif key == u"-":
265
 
#            self.proxy.Approve(False)
266
373
        else:
267
374
            return key
268
375
    
269
 
    def property_changed(self, property=None, value=None,
270
 
                         *args, **kwargs):
271
 
        """Call self.update() if old value is not new value.
 
376
    def properties_changed(self, interface, properties, invalidated):
 
377
        """Call self.update() if any properties changed.
272
378
        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:
 
379
        old_values = { key: self.properties.get(key)
 
380
                       for key in properties.keys() }
 
381
        super(MandosClientWidget, self).properties_changed(
 
382
            interface, properties, invalidated)
 
383
        if any(old_values[key] != self.properties.get(key)
 
384
               for key in old_values):
278
385
            self.update()
279
386
 
280
387
 
283
390
    "down" key presses, thus not allowing any containing widgets to
284
391
    use them as an excuse to shift focus away from this widget.
285
392
    """
286
 
    def keypress(self, (maxcol, maxrow), key):
287
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
288
 
        if ret in (u"up", u"down"):
 
393
    def keypress(self, *args, **kwargs):
 
394
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
395
        if ret in ("up", "down"):
289
396
            return
290
397
        return ret
291
398
 
294
401
    """This is the entire user interface - the whole screen
295
402
    with boxes, lists of client widgets, etc.
296
403
    """
297
 
    def __init__(self, max_log_length=1000):
 
404
    def __init__(self, max_log_length=1000, log_level=1):
298
405
        DBusGMainLoop(set_as_default=True)
299
406
        
300
407
        self.screen = urwid.curses_display.Screen()
301
408
        
302
409
        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")),
 
410
                ("normal",
 
411
                 "default", "default", None),
 
412
                ("bold",
 
413
                 "bold", "default", "bold"),
 
414
                ("underline-blink",
 
415
                 "underline,blink", "default", "underline,blink"),
 
416
                ("standout",
 
417
                 "standout", "default", "standout"),
 
418
                ("bold-underline-blink",
 
419
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
420
                ("bold-standout",
 
421
                 "bold,standout", "default", "bold,standout"),
 
422
                ("underline-blink-standout",
 
423
                 "underline,blink,standout", "default",
 
424
                 "underline,blink,standout"),
 
425
                ("bold-underline-blink-standout",
 
426
                 "bold,underline,blink,standout", "default",
 
427
                 "bold,underline,blink,standout"),
320
428
                ))
321
429
        
322
430
        if urwid.supports_unicode():
323
 
            self.divider = u"─" # \u2500
324
 
            #self.divider = u"━" # \u2501
 
431
            self.divider = "─" # \u2500
 
432
            #self.divider = "━" # \u2501
325
433
        else:
326
 
            #self.divider = u"-" # \u002d
327
 
            self.divider = u"_" # \u005f
 
434
            #self.divider = "-" # \u002d
 
435
            self.divider = "_" # \u005f
328
436
        
329
437
        self.screen.start()
330
438
        
337
445
        self.log = []
338
446
        self.max_log_length = max_log_length
339
447
        
 
448
        self.log_level = log_level
 
449
        
340
450
        # We keep a reference to the log widget so we can remove it
341
451
        # from the ListWalker without it getting destroyed
342
452
        self.logbox = ConstrainedListBox(self.log)
344
454
        # This keeps track of whether self.uilist currently has
345
455
        # self.logbox in it or not
346
456
        self.log_visible = True
347
 
        self.log_wrap = u"any"
 
457
        self.log_wrap = "any"
348
458
        
349
459
        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"))
 
460
        self.log_message_raw(("bold",
 
461
                              "Mandos Monitor version " + version))
 
462
        self.log_message_raw(("bold",
 
463
                              "q: Quit  ?: Help"))
354
464
        
355
465
        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)
 
466
        self.main_loop = GLib.MainLoop()
399
467
    
400
468
    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)))
 
469
        self.log_message("Client with address {} and fingerprint {}"
 
470
                         " could not be found"
 
471
                         .format(address, fingerprint))
404
472
    
405
473
    def rebuild(self):
406
474
        """This rebuilds the User Interface.
407
475
        Call this when the widget layout needs to change"""
408
476
        self.uilist = []
409
477
        #self.uilist.append(urwid.ListBox(self.clients))
410
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
478
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
479
                                                          clients),
411
480
                                       #header=urwid.Divider(),
412
481
                                       header=None,
413
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
482
                                       footer=
 
483
                                       urwid.Divider(div_char=
 
484
                                                     self.divider)))
414
485
        if self.log_visible:
415
486
            self.uilist.append(self.logbox)
416
 
            pass
417
487
        self.topwidget = urwid.Pile(self.uilist)
418
488
    
419
 
    def log_message(self, message):
 
489
    def log_message(self, message, level=1):
 
490
        """Log message formatted with timestamp"""
 
491
        if level < self.log_level:
 
492
            return
420
493
        timestamp = datetime.datetime.now().isoformat()
421
 
        self.log_message_raw(timestamp + u": " + message)
 
494
        self.log_message_raw("{}: {}".format(timestamp, message),
 
495
                             level=level)
422
496
    
423
 
    def log_message_raw(self, markup):
 
497
    def log_message_raw(self, markup, level=1):
424
498
        """Add a log message to the log buffer."""
 
499
        if level < self.log_level:
 
500
            return
425
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
426
502
        if (self.max_log_length
427
503
            and len(self.log) > self.max_log_length):
428
504
            del self.log[0:len(self.log)-self.max_log_length-1]
429
505
        self.logbox.set_focus(len(self.logbox.body.contents),
430
 
                              coming_from=u"above")
 
506
                              coming_from="above")
431
507
        self.refresh()
432
508
    
433
509
    def toggle_log_display(self):
434
510
        """Toggle visibility of the log buffer."""
435
511
        self.log_visible = not self.log_visible
436
512
        self.rebuild()
437
 
        self.log_message(u"Log visibility changed to: "
438
 
                         + unicode(self.log_visible))
 
513
        self.log_message("Log visibility changed to: {}"
 
514
                         .format(self.log_visible), level=0)
439
515
    
440
516
    def change_log_display(self):
441
517
        """Change type of log display.
442
518
        Currently, this toggles wrapping of text lines."""
443
 
        if self.log_wrap == u"clip":
444
 
            self.log_wrap = u"any"
 
519
        if self.log_wrap == "clip":
 
520
            self.log_wrap = "any"
445
521
        else:
446
 
            self.log_wrap = u"clip"
 
522
            self.log_wrap = "clip"
447
523
        for textwidget in self.log:
448
524
            textwidget.set_wrap_mode(self.log_wrap)
449
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
525
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
526
                         level=0)
450
527
    
451
 
    def find_and_remove_client(self, path, name):
452
 
        """Find an client from its object path and remove it.
 
528
    def find_and_remove_client(self, path, interfaces):
 
529
        """Find a client by its object path and remove it.
453
530
        
454
 
        This is connected to the ClientRemoved signal from the
 
531
        This is connected to the InterfacesRemoved signal from the
455
532
        Mandos server object."""
 
533
        if client_interface not in interfaces:
 
534
            # Not a Mandos client object; ignore
 
535
            return
456
536
        try:
457
537
            client = self.clients_dict[path]
458
538
        except KeyError:
459
539
            # not found?
 
540
            self.log_message("Unknown client {!r} removed"
 
541
                             .format(path))
460
542
            return
461
 
        self.remove_client(client, path)
 
543
        client.delete()
462
544
    
463
 
    def add_new_client(self, path):
 
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
464
554
        client_proxy_object = self.bus.get_object(self.busname, path)
465
555
        self.add_client(MandosClientWidget(server_proxy_object
466
556
                                           =self.mandos_serv,
471
561
                                           delete_hook
472
562
                                           =self.remove_client,
473
563
                                           logger
474
 
                                           =self.log_message),
 
564
                                           =self.log_message,
 
565
                                           properties
 
566
                                           = dict(ifs_and_props[
 
567
                                               client_interface])),
475
568
                        path=path)
476
569
    
477
570
    def add_client(self, client, path=None):
479
572
        if path is None:
480
573
            path = client.proxy.object_path
481
574
        self.clients_dict[path] = client
482
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
575
        self.clients.sort(key=lambda c: c.properties["Name"])
483
576
        self.refresh()
484
577
    
485
578
    def remove_client(self, client, path=None):
487
580
        if path is None:
488
581
            path = client.proxy.object_path
489
582
        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
583
        self.refresh()
496
584
    
497
585
    def refresh(self):
501
589
    
502
590
    def run(self):
503
591
        """Start the main loop and exit when it's done."""
 
592
        self.bus = dbus.SystemBus()
 
593
        mandos_dbus_objc = self.bus.get_object(
 
594
            self.busname, "/", follow_name_owner_changes=True)
 
595
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
596
                                          dbus_interface
 
597
                                          = server_interface)
 
598
        try:
 
599
            mandos_clients = (self.mandos_serv
 
600
                              .GetAllClientsWithProperties())
 
601
            if not mandos_clients:
 
602
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
603
        except dbus.exceptions.DBusException:
 
604
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
605
            mandos_clients = dbus.Dictionary()
 
606
        
 
607
        (self.mandos_serv
 
608
         .connect_to_signal("InterfacesRemoved",
 
609
                            self.find_and_remove_client,
 
610
                            dbus_interface
 
611
                            = dbus.OBJECT_MANAGER_IFACE,
 
612
                            byte_arrays=True))
 
613
        (self.mandos_serv
 
614
         .connect_to_signal("InterfacesAdded",
 
615
                            self.add_new_client,
 
616
                            dbus_interface
 
617
                            = dbus.OBJECT_MANAGER_IFACE,
 
618
                            byte_arrays=True))
 
619
        (self.mandos_serv
 
620
         .connect_to_signal("ClientNotFound",
 
621
                            self.client_not_found,
 
622
                            dbus_interface=server_interface,
 
623
                            byte_arrays=True))
 
624
        for path, client in mandos_clients.items():
 
625
            client_proxy_object = self.bus.get_object(self.busname,
 
626
                                                      path)
 
627
            self.add_client(MandosClientWidget(server_proxy_object
 
628
                                               =self.mandos_serv,
 
629
                                               proxy_object
 
630
                                               =client_proxy_object,
 
631
                                               properties=client,
 
632
                                               update_hook
 
633
                                               =self.refresh,
 
634
                                               delete_hook
 
635
                                               =self.remove_client,
 
636
                                               logger
 
637
                                               =self.log_message),
 
638
                            path=path)
 
639
        
504
640
        self.refresh()
505
 
        self._input_callback_tag = (gobject.io_add_watch
 
641
        self._input_callback_tag = (GLib.io_add_watch
506
642
                                    (sys.stdin.fileno(),
507
 
                                     gobject.IO_IN,
 
643
                                     GLib.IO_IN,
508
644
                                     self.process_input))
509
645
        self.main_loop.run()
510
646
        # Main loop has finished, we should close everything now
511
 
        gobject.source_remove(self._input_callback_tag)
 
647
        GLib.source_remove(self._input_callback_tag)
512
648
        self.screen.stop()
513
649
    
514
650
    def stop(self):
516
652
    
517
653
    def process_input(self, source, condition):
518
654
        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
 
655
        translations = { "ctrl n": "down",      # Emacs
 
656
                         "ctrl p": "up",        # Emacs
 
657
                         "ctrl v": "page down", # Emacs
 
658
                         "meta v": "page up",   # Emacs
 
659
                         " ": "page down",      # less
 
660
                         "f": "page down",      # less
 
661
                         "b": "page up",        # less
 
662
                         "j": "down",           # vi
 
663
                         "k": "up",             # vi
528
664
                         }
529
665
        for key in keys:
530
666
            try:
532
668
            except KeyError:    # :-)
533
669
                pass
534
670
            
535
 
            if key == u"q" or key == u"Q":
 
671
            if key == "q" or key == "Q":
536
672
                self.stop()
537
673
                break
538
 
            elif key == u"window resize":
 
674
            elif key == "window resize":
539
675
                self.size = self.screen.get_cols_rows()
540
676
                self.refresh()
541
 
            elif key == u"\f":  # Ctrl-L
 
677
            elif key == "ctrl l":
 
678
                self.screen.clear()
542
679
                self.refresh()
543
 
            elif key == u"l" or key == u"D":
 
680
            elif key == "l" or key == "D":
544
681
                self.toggle_log_display()
545
682
                self.refresh()
546
 
            elif key == u"w" or key == u"i":
 
683
            elif key == "w" or key == "i":
547
684
                self.change_log_display()
548
685
                self.refresh()
549
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
686
            elif key == "?" or key == "f1" or key == "esc":
550
687
                if not self.log_visible:
551
688
                    self.log_visible = True
552
689
                    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"))))
 
690
                self.log_message_raw(("bold",
 
691
                                      "  ".
 
692
                                      join(("q: Quit",
 
693
                                            "?: Help",
 
694
                                            "l: Log window toggle",
 
695
                                            "TAB: Switch window",
 
696
                                            "w: Wrap (log lines)",
 
697
                                            "v: Toggle verbose log",
 
698
                                            ))))
 
699
                self.log_message_raw(("bold",
 
700
                                      "  "
 
701
                                      .join(("Clients:",
 
702
                                             "+: Enable",
 
703
                                             "-: Disable",
 
704
                                             "R: Remove",
 
705
                                             "s: Start new checker",
 
706
                                             "S: Stop checker",
 
707
                                             "C: Checker OK",
 
708
                                             "a: Approve",
 
709
                                             "d: Deny"))))
571
710
                self.refresh()
572
 
            elif key == u"tab":
 
711
            elif key == "tab":
573
712
                if self.topwidget.get_focus() is self.logbox:
574
713
                    self.topwidget.set_focus(0)
575
714
                else:
576
715
                    self.topwidget.set_focus(self.logbox)
577
716
                self.refresh()
578
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
579
 
            #      or key == u">"):
 
717
            elif key == "v":
 
718
                if self.log_level == 0:
 
719
                    self.log_level = 1
 
720
                    self.log_message("Verbose mode: Off")
 
721
                else:
 
722
                    self.log_level = 0
 
723
                    self.log_message("Verbose mode: On")
 
724
            #elif (key == "end" or key == "meta >" or key == "G"
 
725
            #      or key == ">"):
580
726
            #    pass            # xxx end-of-buffer
581
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
582
 
            #      or key == u"<"):
 
727
            #elif (key == "home" or key == "meta <" or key == "g"
 
728
            #      or key == "<"):
583
729
            #    pass            # xxx beginning-of-buffer
584
 
            #elif key == u"ctrl e" or key == u"$":
 
730
            #elif key == "ctrl e" or key == "$":
585
731
            #    pass            # xxx move-end-of-line
586
 
            #elif key == u"ctrl a" or key == u"^":
 
732
            #elif key == "ctrl a" or key == "^":
587
733
            #    pass            # xxx move-beginning-of-line
588
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
734
            #elif key == "ctrl b" or key == "meta (" or key == "h":
589
735
            #    pass            # xxx left
590
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
736
            #elif key == "ctrl f" or key == "meta )" or key == "l":
591
737
            #    pass            # xxx right
592
 
            #elif key == u"a":
 
738
            #elif key == "a":
593
739
            #    pass            # scroll up log
594
 
            #elif key == u"z":
 
740
            #elif key == "z":
595
741
            #    pass            # scroll down log
596
742
            elif self.topwidget.selectable():
597
743
                self.topwidget.keypress(self.size, key)
601
747
ui = UserInterface()
602
748
try:
603
749
    ui.run()
604
 
except Exception, e:
605
 
    ui.log_message(unicode(e))
 
750
except KeyboardInterrupt:
 
751
    ui.screen.stop()
 
752
except Exception as e:
 
753
    ui.log_message(str(e))
606
754
    ui.screen.stop()
607
755
    raise