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  • Committer: Teddy Hogeborn
  • Date: 2009-12-25 23:13:47 UTC
  • Revision ID: teddy@fukt.bsnet.se-20091225231347-gg9u9ru0wj0f24hh
More consistent terminology: Clients are no longer "invalid" - they
are "disabled".  All code and documentation changed to reflect this.

D=Bus API change: The "properties" argument was removed from the
"ClientAdded" signal on interface "se.bsnet.fukt.Mandos".  All code in
both "mandos" and "mandos-monitor" changed to reflect this.

* mandos: Replaced "with closing(F)" with simply "with F" in all
          places where F is a file object.
  (Client.still_valid): Removed.  All callers changed to look at
                        "Client.enabled" instead.
  (dbus_service_property): Check for unsupported signatures with the
                           "byte_arrays" option.
  (DBusObjectWithProperties.Set): - '' -
  (ClientHandler.handle): Use the reverse pipe to receive the
                          "Client.enabled" attribute instead of the
                          now-removed "Client.still_valid()" method.
  (ForkingMixInWithPipe): Renamed to "ForkingMixInWithPipes" (all
                          users changed).  Now also create a reverse
                          pipe for sending data to the child process.
  (ForkingMixInWithPipes.add_pipe): Now takes two pipe fd's as
                                    arguments.  All callers changed.
  (IPv6_TCPServer.handle_ipc): Take an additional "reply_fd" argument
                               (all callers changed).  Close the reply
                               pipe when the child data pipe is
                               closed.  New "GETATTR" IPC method; will
                               pickle client attribute and send it
                               over the reply pipe FD.
  (MandosDBusService.ClientAdded): Removed "properties" argument.  All
                                   emitters changed.
* mandos-clients.conf.xml (DESCRIPTION, OPTIONS): Use
                                                  "enabled/disabled"
                                                  terminology.
* mandos-ctl: Option "--is-valid" renamed to "--is-enabled".
* mandos-monitor: Enable user locale.  Try to log exceptions.
  (MandosClientPropertyCache.__init__): Removed "properties" argument.
                                        All callers changed.
  (UserInterface.add_new_client): Remove "properties" argument.  All
                                  callers changed.  Supply "logger"
                                  argument to MandosClientWidget().
  (UserInterface.add_client): New "logger" argument.  All callers
                              changed.
* mandos.xml (BUGS, SECURITY/CLIENTS): Use "enabled/disabled"
                                       terminology.

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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
 
#
25
3
 
26
 
from __future__ import (division, absolute_import, print_function,
27
 
                        unicode_literals)
28
 
try:
29
 
    from future_builtins import *
30
 
except ImportError:
31
 
    pass
 
4
from __future__ import division, absolute_import, with_statement
32
5
 
33
6
import sys
34
7
import os
 
8
import signal
35
9
 
36
10
import datetime
37
11
 
39
13
import urwid
40
14
 
41
15
from dbus.mainloop.glib import DBusGMainLoop
42
 
from gi.repository import GLib
 
16
import gobject
43
17
 
44
18
import dbus
45
19
 
 
20
import UserList
 
21
 
46
22
import locale
47
23
 
48
 
import logging
49
 
 
50
 
if sys.version_info.major == 2:
51
 
    str = unicode
52
 
 
53
 
locale.setlocale(locale.LC_ALL, '')
54
 
 
55
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
24
locale.setlocale(locale.LC_ALL, u'')
56
25
 
57
26
# Some useful constants
58
 
domain = 'se.recompile'
 
27
domain = 'se.bsnet.fukt'
59
28
server_interface = domain + '.Mandos'
60
29
client_interface = domain + '.Mandos.Client'
61
 
version = "1.7.14"
62
 
 
63
 
try:
64
 
    dbus.OBJECT_MANAGER_IFACE
65
 
except AttributeError:
66
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
67
 
 
68
 
 
69
 
def isoformat_to_datetime(iso):
70
 
    "Parse an ISO 8601 date string to a datetime.datetime()"
71
 
    if not iso:
72
 
        return None
73
 
    d, t = iso.split("T", 1)
74
 
    year, month, day = d.split("-", 2)
75
 
    hour, minute, second = t.split(":", 2)
76
 
    second, fraction = divmod(float(second), 1)
77
 
    return datetime.datetime(int(year),
78
 
                             int(month),
79
 
                             int(day),
80
 
                             int(hour),
81
 
                             int(minute),
82
 
                             int(second),            # Whole seconds
83
 
                             int(fraction*1000000))  # Microseconds
84
 
 
 
30
version = "1.0.14"
 
31
 
 
32
# Always run in monochrome mode
 
33
urwid.curses_display.curses.has_colors = lambda : False
 
34
 
 
35
# Urwid doesn't support blinking, but we want it.  Since we have no
 
36
# use for underline on its own, we make underline also always blink.
 
37
urwid.curses_display.curses.A_UNDERLINE |= (
 
38
    urwid.curses_display.curses.A_BLINK)
85
39
 
86
40
class MandosClientPropertyCache(object):
87
41
    """This wraps a Mandos Client D-Bus proxy object, caches the
88
42
    properties and calls a hook function when any of them are
89
43
    changed.
90
44
    """
91
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
92
 
        self.proxy = proxy_object  # Mandos Client proxy object
93
 
        self.properties = dict() if properties is None else properties
94
 
        self.property_changed_match = (
95
 
            self.proxy.connect_to_signal("PropertiesChanged",
96
 
                                         self.properties_changed,
97
 
                                         dbus.PROPERTIES_IFACE,
98
 
                                         byte_arrays=True))
99
 
 
100
 
        if properties is None:
101
 
            self.properties.update(self.proxy.GetAll(
102
 
                client_interface,
103
 
                dbus_interface=dbus.PROPERTIES_IFACE))
104
 
 
105
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
106
 
 
107
 
    def properties_changed(self, interface, properties, invalidated):
108
 
        """This is called whenever we get a PropertiesChanged signal
109
 
        It updates the changed properties in the "properties" dict.
 
45
    def __init__(self, proxy_object=None, *args, **kwargs):
 
46
        self.proxy = proxy_object # Mandos Client proxy object
 
47
        
 
48
        self.properties = dict()
 
49
        self.proxy.connect_to_signal(u"PropertyChanged",
 
50
                                     self.property_changed,
 
51
                                     client_interface,
 
52
                                     byte_arrays=True)
 
53
 
 
54
        self.properties.update(
 
55
            self.proxy.GetAll(client_interface,
 
56
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
57
        super(MandosClientPropertyCache, self).__init__(
 
58
            proxy_object=proxy_object, *args, **kwargs)
 
59
    
 
60
    def property_changed(self, property=None, value=None):
 
61
        """This is called whenever we get a PropertyChanged signal
 
62
        It updates the changed property in the "properties" dict.
110
63
        """
111
64
        # Update properties dict with new value
112
 
        if interface == client_interface:
113
 
            self.properties.update(properties)
114
 
 
115
 
    def delete(self):
116
 
        self.property_changed_match.remove()
 
65
        self.properties[property] = value
117
66
 
118
67
 
119
68
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
120
69
    """A Mandos Client which is visible on the screen.
121
70
    """
122
 
 
 
71
    
123
72
    def __init__(self, server_proxy_object=None, update_hook=None,
124
 
                 delete_hook=None, logger=None, **kwargs):
 
73
                 delete_hook=None, logger=None, *args, **kwargs):
125
74
        # Called on update
126
75
        self.update_hook = update_hook
127
76
        # Called on delete
130
79
        self.server_proxy_object = server_proxy_object
131
80
        # Logger
132
81
        self.logger = logger
133
 
 
134
 
        self._update_timer_callback_tag = None
135
 
 
 
82
        
136
83
        # The widget shown normally
137
 
        self._text_widget = urwid.Text("")
 
84
        self._text_widget = urwid.Text(u"")
138
85
        # The widget shown when we have focus
139
 
        self._focus_text_widget = urwid.Text("")
140
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
86
        self._focus_text_widget = urwid.Text(u"")
 
87
        super(MandosClientWidget, self).__init__(
 
88
            update_hook=update_hook, delete_hook=delete_hook,
 
89
            *args, **kwargs)
141
90
        self.update()
142
91
        self.opened = False
143
 
 
144
 
        self.match_objects = (
145
 
            self.proxy.connect_to_signal("CheckerCompleted",
146
 
                                         self.checker_completed,
147
 
                                         client_interface,
148
 
                                         byte_arrays=True),
149
 
            self.proxy.connect_to_signal("CheckerStarted",
150
 
                                         self.checker_started,
151
 
                                         client_interface,
152
 
                                         byte_arrays=True),
153
 
            self.proxy.connect_to_signal("GotSecret",
154
 
                                         self.got_secret,
155
 
                                         client_interface,
156
 
                                         byte_arrays=True),
157
 
            self.proxy.connect_to_signal("NeedApproval",
158
 
                                         self.need_approval,
159
 
                                         client_interface,
160
 
                                         byte_arrays=True),
161
 
            self.proxy.connect_to_signal("Rejected",
162
 
                                         self.rejected,
163
 
                                         client_interface,
164
 
                                         byte_arrays=True))
165
 
        self.logger('Created client {}'
166
 
                    .format(self.properties["Name"]), level=0)
167
 
 
168
 
    def using_timer(self, flag):
169
 
        """Call this method with True or False when timer should be
170
 
        activated or deactivated.
171
 
        """
172
 
        if flag and self._update_timer_callback_tag is None:
173
 
            # Will update the shown timer value every second
174
 
            self._update_timer_callback_tag = (GLib.timeout_add
175
 
                                               (1000,
176
 
                                                self.update_timer))
177
 
        elif not (flag or self._update_timer_callback_tag is None):
178
 
            GLib.source_remove(self._update_timer_callback_tag)
179
 
            self._update_timer_callback_tag = None
180
 
 
 
92
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
93
                                     self.checker_completed,
 
94
                                     client_interface,
 
95
                                     byte_arrays=True)
 
96
        self.proxy.connect_to_signal(u"CheckerStarted",
 
97
                                     self.checker_started,
 
98
                                     client_interface,
 
99
                                     byte_arrays=True)
 
100
        self.proxy.connect_to_signal(u"GotSecret",
 
101
                                     self.got_secret,
 
102
                                     client_interface,
 
103
                                     byte_arrays=True)
 
104
        self.proxy.connect_to_signal(u"Rejected",
 
105
                                     self.rejected,
 
106
                                     client_interface,
 
107
                                     byte_arrays=True)
 
108
    
181
109
    def checker_completed(self, exitstatus, condition, command):
182
110
        if exitstatus == 0:
183
 
            self.logger('Checker for client {} (command "{}")'
184
 
                        ' succeeded'.format(self.properties["Name"],
185
 
                                            command), level=0)
186
 
            self.update()
 
111
            self.logger(u'Checker for client %s (command "%s")'
 
112
                        u' was successful'
 
113
                        % (self.properties[u"name"], command))
187
114
            return
188
 
        # Checker failed
189
115
        if os.WIFEXITED(condition):
190
 
            self.logger('Checker for client {} (command "{}") failed'
191
 
                        ' with exit code {}'
192
 
                        .format(self.properties["Name"], command,
193
 
                                os.WEXITSTATUS(condition)))
194
 
        elif os.WIFSIGNALED(condition):
195
 
            self.logger('Checker for client {} (command "{}") was'
196
 
                        ' killed by signal {}'
197
 
                        .format(self.properties["Name"], command,
198
 
                                os.WTERMSIG(condition)))
199
 
        self.update()
200
 
 
 
116
            self.logger(u'Checker for client %s (command "%s")'
 
117
                        u' failed with exit code %s'
 
118
                        % (self.properties[u"name"], command,
 
119
                           os.WEXITSTATUS(condition)))
 
120
            return
 
121
        if os.WIFSIGNALED(condition):
 
122
            self.logger(u'Checker for client %s (command "%s")'
 
123
                        u' was killed by signal %s'
 
124
                        % (self.properties[u"name"], command,
 
125
                           os.WTERMSIG(condition)))
 
126
            return
 
127
        if os.WCOREDUMP(condition):
 
128
            self.logger(u'Checker for client %s (command "%s")'
 
129
                        u' dumped core'
 
130
                        % (self.properties[u"name"], command))
 
131
        self.logger(u'Checker for client %s completed mysteriously')
 
132
    
201
133
    def checker_started(self, command):
202
 
        """Server signals that a checker started."""
203
 
        self.logger('Client {} started checker "{}"'
204
 
                    .format(self.properties["Name"],
205
 
                            command), level=0)
206
 
 
 
134
        self.logger(u'Client %s started checker "%s"'
 
135
                    % (self.properties[u"name"], unicode(command)))
 
136
    
207
137
    def got_secret(self):
208
 
        self.logger('Client {} received its secret'
209
 
                    .format(self.properties["Name"]))
210
 
 
211
 
    def need_approval(self, timeout, default):
212
 
        if not default:
213
 
            message = 'Client {} needs approval within {} seconds'
214
 
        else:
215
 
            message = 'Client {} will get its secret in {} seconds'
216
 
        self.logger(message.format(self.properties["Name"],
217
 
                                   timeout/1000))
218
 
 
219
 
    def rejected(self, reason):
220
 
        self.logger('Client {} was rejected; reason: {}'
221
 
                    .format(self.properties["Name"], reason))
222
 
 
 
138
        self.logger(u'Client %s received its secret'
 
139
                    % self.properties[u"name"])
 
140
    
 
141
    def rejected(self):
 
142
        self.logger(u'Client %s was rejected'
 
143
                    % self.properties[u"name"])
 
144
    
223
145
    def selectable(self):
224
146
        """Make this a "selectable" widget.
225
147
        This overrides the method from urwid.FlowWidget."""
226
148
        return True
227
 
 
228
 
    def rows(self, maxcolrow, focus=False):
 
149
    
 
150
    def rows(self, (maxcol,), focus=False):
229
151
        """How many rows this widget will occupy might depend on
230
152
        whether we have focus or not.
231
153
        This overrides the method from urwid.FlowWidget"""
232
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
233
 
 
 
154
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
155
    
234
156
    def current_widget(self, focus=False):
235
157
        if focus or self.opened:
236
158
            return self._focus_widget
237
159
        return self._widget
238
 
 
 
160
    
239
161
    def update(self):
240
162
        "Called when what is visible on the screen should be updated."
241
163
        # How to add standout mode to a style
242
 
        with_standout = {"normal": "standout",
243
 
                         "bold": "bold-standout",
244
 
                         "underline-blink":
245
 
                         "underline-blink-standout",
246
 
                         "bold-underline-blink":
247
 
                         "bold-underline-blink-standout",
248
 
                         }
249
 
 
 
164
        with_standout = { u"normal": u"standout",
 
165
                          u"bold": u"bold-standout",
 
166
                          u"underline-blink":
 
167
                              u"underline-blink-standout",
 
168
                          u"bold-underline-blink":
 
169
                              u"bold-underline-blink-standout",
 
170
                          }
 
171
        
250
172
        # Rebuild focus and non-focus widgets using current properties
251
 
 
252
 
        # Base part of a client. Name!
253
 
        base = '{name}: '.format(name=self.properties["Name"])
254
 
        if not self.properties["Enabled"]:
255
 
            message = "DISABLED"
256
 
            self.using_timer(False)
257
 
        elif self.properties["ApprovalPending"]:
258
 
            timeout = datetime.timedelta(
259
 
                milliseconds=self.properties["ApprovalDelay"])
260
 
            last_approval_request = isoformat_to_datetime(
261
 
                self.properties["LastApprovalRequest"])
262
 
            if last_approval_request is not None:
263
 
                timer = max(timeout - (datetime.datetime.utcnow()
264
 
                                       - last_approval_request),
265
 
                            datetime.timedelta())
266
 
            else:
267
 
                timer = datetime.timedelta()
268
 
            if self.properties["ApprovedByDefault"]:
269
 
                message = "Approval in {}. (d)eny?"
270
 
            else:
271
 
                message = "Denial in {}. (a)pprove?"
272
 
            message = message.format(str(timer).rsplit(".", 1)[0])
273
 
            self.using_timer(True)
274
 
        elif self.properties["LastCheckerStatus"] != 0:
275
 
            # When checker has failed, show timer until client expires
276
 
            expires = self.properties["Expires"]
277
 
            if expires == "":
278
 
                timer = datetime.timedelta(0)
279
 
            else:
280
 
                expires = (datetime.datetime.strptime
281
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
282
 
                timer = max(expires - datetime.datetime.utcnow(),
283
 
                            datetime.timedelta())
284
 
            message = ('A checker has failed! Time until client'
285
 
                       ' gets disabled: {}'
286
 
                       .format(str(timer).rsplit(".", 1)[0]))
287
 
            self.using_timer(True)
288
 
        else:
289
 
            message = "enabled"
290
 
            self.using_timer(False)
291
 
        self._text = "{}{}".format(base, message)
292
 
 
 
173
        self._text = (u'%(name)s: %(enabled)s'
 
174
                      % { u"name": self.properties[u"name"],
 
175
                          u"enabled":
 
176
                              (u"enabled"
 
177
                               if self.properties[u"enabled"]
 
178
                               else u"DISABLED")})
293
179
        if not urwid.supports_unicode():
294
180
            self._text = self._text.encode("ascii", "replace")
295
 
        textlist = [("normal", self._text)]
 
181
        textlist = [(u"normal", self._text)]
296
182
        self._text_widget.set_text(textlist)
297
183
        self._focus_text_widget.set_text([(with_standout[text[0]],
298
184
                                           text[1])
305
191
        # Run update hook, if any
306
192
        if self.update_hook is not None:
307
193
            self.update_hook()
308
 
 
309
 
    def update_timer(self):
310
 
        """called by GLib. Will indefinitely loop until
311
 
        GLib.source_remove() on tag is called
312
 
        """
313
 
        self.update()
314
 
        return True             # Keep calling this
315
 
 
316
 
    def delete(self, **kwargs):
317
 
        if self._update_timer_callback_tag is not None:
318
 
            GLib.source_remove(self._update_timer_callback_tag)
319
 
            self._update_timer_callback_tag = None
320
 
        for match in self.match_objects:
321
 
            match.remove()
322
 
        self.match_objects = ()
 
194
    
 
195
    def delete(self):
323
196
        if self.delete_hook is not None:
324
197
            self.delete_hook(self)
325
 
        return super(MandosClientWidget, self).delete(**kwargs)
326
 
 
327
 
    def render(self, maxcolrow, focus=False):
 
198
    
 
199
    def render(self, (maxcol,), focus=False):
328
200
        """Render differently if we have focus.
329
201
        This overrides the method from urwid.FlowWidget"""
330
 
        return self.current_widget(focus).render(maxcolrow,
 
202
        return self.current_widget(focus).render((maxcol,),
331
203
                                                 focus=focus)
332
 
 
333
 
    def keypress(self, maxcolrow, key):
 
204
    
 
205
    def keypress(self, (maxcol,), key):
334
206
        """Handle keys.
335
207
        This overrides the method from urwid.FlowWidget"""
336
 
        if key == "+":
337
 
            self.proxy.Set(client_interface, "Enabled",
338
 
                           dbus.Boolean(True), ignore_reply=True,
339
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
340
 
        elif key == "-":
341
 
            self.proxy.Set(client_interface, "Enabled", False,
342
 
                           ignore_reply=True,
343
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
344
 
        elif key == "a":
345
 
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
346
 
                               dbus_interface=client_interface,
347
 
                               ignore_reply=True)
348
 
        elif key == "d":
349
 
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
350
 
                               dbus_interface=client_interface,
351
 
                               ignore_reply=True)
352
 
        elif key == "R" or key == "_" or key == "ctrl k":
 
208
        if key == u"e" or key == u"+":
 
209
            self.proxy.Enable()
 
210
        elif key == u"d" or key == u"-":
 
211
            self.proxy.Disable()
 
212
        elif key == u"r" or key == u"_" or key == u"ctrl k":
353
213
            self.server_proxy_object.RemoveClient(self.proxy
354
 
                                                  .object_path,
355
 
                                                  ignore_reply=True)
356
 
        elif key == "s":
357
 
            self.proxy.Set(client_interface, "CheckerRunning",
358
 
                           dbus.Boolean(True), ignore_reply=True,
359
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
360
 
        elif key == "S":
361
 
            self.proxy.Set(client_interface, "CheckerRunning",
362
 
                           dbus.Boolean(False), ignore_reply=True,
363
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
364
 
        elif key == "C":
365
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
366
 
                                 ignore_reply=True)
 
214
                                                  .object_path)
 
215
        elif key == u"s":
 
216
            self.proxy.StartChecker()
 
217
        elif key == u"S":
 
218
            self.proxy.StopChecker()
 
219
        elif key == u"C":
 
220
            self.proxy.CheckedOK()
367
221
        # xxx
368
 
#         elif key == "p" or key == "=":
 
222
#         elif key == u"p" or key == "=":
369
223
#             self.proxy.pause()
370
 
#         elif key == "u" or key == ":":
 
224
#         elif key == u"u" or key == ":":
371
225
#             self.proxy.unpause()
372
 
#         elif key == "RET":
 
226
#         elif key == u"RET":
373
227
#             self.open()
374
228
        else:
375
229
            return key
376
 
 
377
 
    def properties_changed(self, interface, properties, invalidated):
378
 
        """Call self.update() if any properties changed.
 
230
    
 
231
    def property_changed(self, property=None, value=None,
 
232
                         *args, **kwargs):
 
233
        """Call self.update() if old value is not new value.
379
234
        This overrides the method from MandosClientPropertyCache"""
380
 
        old_values = {key: self.properties.get(key)
381
 
                      for key in properties.keys()}
382
 
        super(MandosClientWidget, self).properties_changed(
383
 
            interface, properties, invalidated)
384
 
        if any(old_values[key] != self.properties.get(key)
385
 
               for key in old_values):
 
235
        property_name = unicode(property)
 
236
        old_value = self.properties.get(property_name)
 
237
        super(MandosClientWidget, self).property_changed(
 
238
            property=property, value=value, *args, **kwargs)
 
239
        if self.properties.get(property_name) != old_value:
386
240
            self.update()
387
241
 
388
242
 
391
245
    "down" key presses, thus not allowing any containing widgets to
392
246
    use them as an excuse to shift focus away from this widget.
393
247
    """
394
 
    def keypress(self, *args, **kwargs):
395
 
        ret = (super(ConstrainedListBox, self)
396
 
               .keypress(*args, **kwargs))
397
 
        if ret in ("up", "down"):
 
248
    def keypress(self, (maxcol, maxrow), key):
 
249
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
 
250
        if ret in (u"up", u"down"):
398
251
            return
399
252
        return ret
400
253
 
403
256
    """This is the entire user interface - the whole screen
404
257
    with boxes, lists of client widgets, etc.
405
258
    """
406
 
    def __init__(self, max_log_length=1000, log_level=1):
 
259
    def __init__(self, max_log_length=1000):
407
260
        DBusGMainLoop(set_as_default=True)
408
 
 
 
261
        
409
262
        self.screen = urwid.curses_display.Screen()
410
 
 
 
263
        
411
264
        self.screen.register_palette((
412
 
                ("normal",
413
 
                 "default", "default", None),
414
 
                ("bold",
415
 
                 "bold", "default", "bold"),
416
 
                ("underline-blink",
417
 
                 "underline,blink", "default", "underline,blink"),
418
 
                ("standout",
419
 
                 "standout", "default", "standout"),
420
 
                ("bold-underline-blink",
421
 
                 "bold,underline,blink", "default",
422
 
                 "bold,underline,blink"),
423
 
                ("bold-standout",
424
 
                 "bold,standout", "default", "bold,standout"),
425
 
                ("underline-blink-standout",
426
 
                 "underline,blink,standout", "default",
427
 
                 "underline,blink,standout"),
428
 
                ("bold-underline-blink-standout",
429
 
                 "bold,underline,blink,standout", "default",
430
 
                 "bold,underline,blink,standout"),
 
265
                (u"normal",
 
266
                 u"default", u"default", None),
 
267
                (u"bold",
 
268
                 u"default", u"default", u"bold"),
 
269
                (u"underline-blink",
 
270
                 u"default", u"default", u"underline"),
 
271
                (u"standout",
 
272
                 u"default", u"default", u"standout"),
 
273
                (u"bold-underline-blink",
 
274
                 u"default", u"default", (u"bold", u"underline")),
 
275
                (u"bold-standout",
 
276
                 u"default", u"default", (u"bold", u"standout")),
 
277
                (u"underline-blink-standout",
 
278
                 u"default", u"default", (u"underline", u"standout")),
 
279
                (u"bold-underline-blink-standout",
 
280
                 u"default", u"default", (u"bold", u"underline",
 
281
                                          u"standout")),
431
282
                ))
432
 
 
 
283
        
433
284
        if urwid.supports_unicode():
434
 
            self.divider = "─"  # \u2500
 
285
            self.divider = u"─" # \u2500
 
286
            #self.divider = u"━" # \u2501
435
287
        else:
436
 
            self.divider = "_"  # \u005f
437
 
 
 
288
            #self.divider = u"-" # \u002d
 
289
            self.divider = u"_" # \u005f
 
290
        
438
291
        self.screen.start()
439
 
 
 
292
        
440
293
        self.size = self.screen.get_cols_rows()
441
 
 
 
294
        
442
295
        self.clients = urwid.SimpleListWalker([])
443
296
        self.clients_dict = {}
444
 
 
 
297
        
445
298
        # We will add Text widgets to this list
446
299
        self.log = []
447
300
        self.max_log_length = max_log_length
448
 
 
449
 
        self.log_level = log_level
450
 
 
 
301
        
451
302
        # We keep a reference to the log widget so we can remove it
452
303
        # from the ListWalker without it getting destroyed
453
304
        self.logbox = ConstrainedListBox(self.log)
454
 
 
 
305
        
455
306
        # This keeps track of whether self.uilist currently has
456
307
        # self.logbox in it or not
457
308
        self.log_visible = True
458
 
        self.log_wrap = "any"
459
 
 
 
309
        self.log_wrap = u"any"
 
310
        
460
311
        self.rebuild()
461
 
        self.log_message_raw(("bold",
462
 
                              "Mandos Monitor version " + version))
463
 
        self.log_message_raw(("bold",
464
 
                              "q: Quit  ?: Help"))
465
 
 
 
312
        self.log_message_raw((u"bold",
 
313
                              u"Mandos Monitor version " + version))
 
314
        self.log_message_raw((u"bold",
 
315
                              u"q: Quit  ?: Help"))
 
316
        
466
317
        self.busname = domain + '.Mandos'
467
 
        self.main_loop = GLib.MainLoop()
468
 
 
 
318
        self.main_loop = gobject.MainLoop()
 
319
        self.bus = dbus.SystemBus()
 
320
        mandos_dbus_objc = self.bus.get_object(
 
321
            self.busname, u"/", follow_name_owner_changes=True)
 
322
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
323
                                          dbus_interface
 
324
                                          = server_interface)
 
325
        try:
 
326
            mandos_clients = (self.mandos_serv
 
327
                              .GetAllClientsWithProperties())
 
328
        except dbus.exceptions.DBusException:
 
329
            mandos_clients = dbus.Dictionary()
 
330
        
 
331
        (self.mandos_serv
 
332
         .connect_to_signal(u"ClientRemoved",
 
333
                            self.find_and_remove_client,
 
334
                            dbus_interface=server_interface,
 
335
                            byte_arrays=True))
 
336
        (self.mandos_serv
 
337
         .connect_to_signal(u"ClientAdded",
 
338
                            self.add_new_client,
 
339
                            dbus_interface=server_interface,
 
340
                            byte_arrays=True))
 
341
        (self.mandos_serv
 
342
         .connect_to_signal(u"ClientNotFound",
 
343
                            self.client_not_found,
 
344
                            dbus_interface=server_interface,
 
345
                            byte_arrays=True))
 
346
        for path, client in mandos_clients.iteritems():
 
347
            client_proxy_object = self.bus.get_object(self.busname,
 
348
                                                      path)
 
349
            self.add_client(MandosClientWidget(server_proxy_object
 
350
                                               =self.mandos_serv,
 
351
                                               proxy_object
 
352
                                               =client_proxy_object,
 
353
                                               properties=client,
 
354
                                               update_hook
 
355
                                               =self.refresh,
 
356
                                               delete_hook
 
357
                                               =self.remove_client,
 
358
                                               logger
 
359
                                               =self.log_message),
 
360
                            path=path)
 
361
    
469
362
    def client_not_found(self, fingerprint, address):
470
 
        self.log_message("Client with address {} and fingerprint {}"
471
 
                         " could not be found"
472
 
                         .format(address, fingerprint))
473
 
 
 
363
        self.log_message((u"Client with address %s and fingerprint %s"
 
364
                          u" could not be found" % (address,
 
365
                                                    fingerprint)))
 
366
    
474
367
    def rebuild(self):
475
368
        """This rebuilds the User Interface.
476
369
        Call this when the widget layout needs to change"""
477
370
        self.uilist = []
478
 
        # self.uilist.append(urwid.ListBox(self.clients))
479
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
480
 
                                                          clients),
481
 
                                       # header=urwid.Divider(),
 
371
        #self.uilist.append(urwid.ListBox(self.clients))
 
372
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
373
                                       #header=urwid.Divider(),
482
374
                                       header=None,
483
 
                                       footer=urwid.Divider(
484
 
                                           div_char=self.divider)))
 
375
                                       footer=urwid.Divider(div_char=self.divider)))
485
376
        if self.log_visible:
486
377
            self.uilist.append(self.logbox)
 
378
            pass
487
379
        self.topwidget = urwid.Pile(self.uilist)
488
 
 
489
 
    def log_message(self, message, level=1):
490
 
        """Log message formatted with timestamp"""
491
 
        if level < self.log_level:
492
 
            return
 
380
    
 
381
    def log_message(self, message):
493
382
        timestamp = datetime.datetime.now().isoformat()
494
 
        self.log_message_raw("{}: {}".format(timestamp, message),
495
 
                             level=level)
496
 
 
497
 
    def log_message_raw(self, markup, level=1):
 
383
        self.log_message_raw(timestamp + u": " + message)
 
384
    
 
385
    def log_message_raw(self, markup):
498
386
        """Add a log message to the log buffer."""
499
 
        if level < self.log_level:
500
 
            return
501
387
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
502
 
        if self.max_log_length:
503
 
            if len(self.log) > self.max_log_length:
504
 
                del self.log[0:len(self.log)-self.max_log_length-1]
 
388
        if (self.max_log_length
 
389
            and len(self.log) > self.max_log_length):
 
390
            del self.log[0:len(self.log)-self.max_log_length-1]
505
391
        self.logbox.set_focus(len(self.logbox.body.contents),
506
 
                              coming_from="above")
 
392
                              coming_from=u"above")
507
393
        self.refresh()
508
 
 
 
394
    
509
395
    def toggle_log_display(self):
510
396
        """Toggle visibility of the log buffer."""
511
397
        self.log_visible = not self.log_visible
512
398
        self.rebuild()
513
 
        self.log_message("Log visibility changed to: {}"
514
 
                         .format(self.log_visible), level=0)
515
 
 
 
399
        self.log_message(u"Log visibility changed to: "
 
400
                         + unicode(self.log_visible))
 
401
    
516
402
    def change_log_display(self):
517
403
        """Change type of log display.
518
404
        Currently, this toggles wrapping of text lines."""
519
 
        if self.log_wrap == "clip":
520
 
            self.log_wrap = "any"
 
405
        if self.log_wrap == u"clip":
 
406
            self.log_wrap = u"any"
521
407
        else:
522
 
            self.log_wrap = "clip"
 
408
            self.log_wrap = u"clip"
523
409
        for textwidget in self.log:
524
410
            textwidget.set_wrap_mode(self.log_wrap)
525
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
526
 
                         level=0)
527
 
 
528
 
    def find_and_remove_client(self, path, interfaces):
529
 
        """Find a client by its object path and remove it.
530
 
 
531
 
        This is connected to the InterfacesRemoved signal from the
 
411
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
412
    
 
413
    def find_and_remove_client(self, path, name):
 
414
        """Find an client from its object path and remove it.
 
415
        
 
416
        This is connected to the ClientRemoved signal from the
532
417
        Mandos server object."""
533
 
        if client_interface not in interfaces:
534
 
            # Not a Mandos client object; ignore
535
 
            return
536
418
        try:
537
419
            client = self.clients_dict[path]
538
420
        except KeyError:
539
421
            # not found?
540
 
            self.log_message("Unknown client {!r} removed"
541
 
                             .format(path))
542
 
            return
543
 
        client.delete()
544
 
 
545
 
    def add_new_client(self, path, ifs_and_props):
546
 
        """Find a client by its object path and remove it.
547
 
 
548
 
        This is connected to the InterfacesAdded signal from the
549
 
        Mandos server object.
550
 
        """
551
 
        if client_interface not in ifs_and_props:
552
 
            # Not a Mandos client object; ignore
553
 
            return
 
422
            return
 
423
        self.remove_client(client, path)
 
424
    
 
425
    def add_new_client(self, path):
554
426
        client_proxy_object = self.bus.get_object(self.busname, path)
555
 
        self.add_client(MandosClientWidget(
556
 
            server_proxy_object=self.mandos_serv,
557
 
            proxy_object=client_proxy_object,
558
 
            update_hook=self.refresh,
559
 
            delete_hook=self.remove_client,
560
 
            logger=self.log_message,
561
 
            properties=dict(ifs_and_props[client_interface])),
 
427
        self.add_client(MandosClientWidget(server_proxy_object
 
428
                                           =self.mandos_serv,
 
429
                                           proxy_object
 
430
                                           =client_proxy_object,
 
431
                                           update_hook
 
432
                                           =self.refresh,
 
433
                                           delete_hook
 
434
                                           =self.remove_client,
 
435
                                           logger
 
436
                                           =self.log_message),
562
437
                        path=path)
563
 
 
 
438
    
564
439
    def add_client(self, client, path=None):
565
440
        self.clients.append(client)
566
441
        if path is None:
567
442
            path = client.proxy.object_path
568
443
        self.clients_dict[path] = client
569
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
444
        self.clients.sort(None, lambda c: c.properties[u"name"])
570
445
        self.refresh()
571
 
 
 
446
    
572
447
    def remove_client(self, client, path=None):
573
448
        self.clients.remove(client)
574
449
        if path is None:
575
450
            path = client.proxy.object_path
576
451
        del self.clients_dict[path]
 
452
        if not self.clients_dict:
 
453
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
454
            # is completely emptied, we need to recreate it.
 
455
            self.clients = urwid.SimpleListWalker([])
 
456
            self.rebuild()
577
457
        self.refresh()
578
 
 
 
458
    
579
459
    def refresh(self):
580
460
        """Redraw the screen"""
581
461
        canvas = self.topwidget.render(self.size, focus=True)
582
462
        self.screen.draw_screen(self.size, canvas)
583
 
 
 
463
    
584
464
    def run(self):
585
465
        """Start the main loop and exit when it's done."""
586
 
        self.bus = dbus.SystemBus()
587
 
        mandos_dbus_objc = self.bus.get_object(
588
 
            self.busname, "/", follow_name_owner_changes=True)
589
 
        self.mandos_serv = dbus.Interface(
590
 
            mandos_dbus_objc, dbus_interface=server_interface)
591
 
        try:
592
 
            mandos_clients = (self.mandos_serv
593
 
                              .GetAllClientsWithProperties())
594
 
            if not mandos_clients:
595
 
                self.log_message_raw(("bold",
596
 
                                      "Note: Server has no clients."))
597
 
        except dbus.exceptions.DBusException:
598
 
            self.log_message_raw(("bold",
599
 
                                  "Note: No Mandos server running."))
600
 
            mandos_clients = dbus.Dictionary()
601
 
 
602
 
        (self.mandos_serv
603
 
         .connect_to_signal("InterfacesRemoved",
604
 
                            self.find_and_remove_client,
605
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
606
 
                            byte_arrays=True))
607
 
        (self.mandos_serv
608
 
         .connect_to_signal("InterfacesAdded",
609
 
                            self.add_new_client,
610
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
611
 
                            byte_arrays=True))
612
 
        (self.mandos_serv
613
 
         .connect_to_signal("ClientNotFound",
614
 
                            self.client_not_found,
615
 
                            dbus_interface=server_interface,
616
 
                            byte_arrays=True))
617
 
        for path, client in mandos_clients.items():
618
 
            client_proxy_object = self.bus.get_object(self.busname,
619
 
                                                      path)
620
 
            self.add_client(MandosClientWidget(
621
 
                server_proxy_object=self.mandos_serv,
622
 
                proxy_object=client_proxy_object,
623
 
                properties=client,
624
 
                update_hook=self.refresh,
625
 
                delete_hook=self.remove_client,
626
 
                logger=self.log_message),
627
 
                            path=path)
628
 
 
629
466
        self.refresh()
630
 
        self._input_callback_tag = (GLib.io_add_watch
 
467
        self._input_callback_tag = (gobject.io_add_watch
631
468
                                    (sys.stdin.fileno(),
632
 
                                     GLib.IO_IN,
 
469
                                     gobject.IO_IN,
633
470
                                     self.process_input))
634
471
        self.main_loop.run()
635
472
        # Main loop has finished, we should close everything now
636
 
        GLib.source_remove(self._input_callback_tag)
 
473
        gobject.source_remove(self._input_callback_tag)
637
474
        self.screen.stop()
638
 
 
 
475
    
639
476
    def stop(self):
640
477
        self.main_loop.quit()
641
 
 
 
478
    
642
479
    def process_input(self, source, condition):
643
480
        keys = self.screen.get_input()
644
 
        translations = {"ctrl n": "down",       # Emacs
645
 
                        "ctrl p": "up",         # Emacs
646
 
                        "ctrl v": "page down",  # Emacs
647
 
                        "meta v": "page up",    # Emacs
648
 
                        " ": "page down",       # less
649
 
                        "f": "page down",       # less
650
 
                        "b": "page up",         # less
651
 
                        "j": "down",            # vi
652
 
                        "k": "up",              # vi
653
 
                        }
 
481
        translations = { u"ctrl n": u"down",      # Emacs
 
482
                         u"ctrl p": u"up",        # Emacs
 
483
                         u"ctrl v": u"page down", # Emacs
 
484
                         u"meta v": u"page up",   # Emacs
 
485
                         u" ": u"page down",      # less
 
486
                         u"f": u"page down",      # less
 
487
                         u"b": u"page up",        # less
 
488
                         u"j": u"down",           # vi
 
489
                         u"k": u"up",             # vi
 
490
                         }
654
491
        for key in keys:
655
492
            try:
656
493
                key = translations[key]
657
494
            except KeyError:    # :-)
658
495
                pass
659
 
 
660
 
            if key == "q" or key == "Q":
 
496
            
 
497
            if key == u"q" or key == u"Q":
661
498
                self.stop()
662
499
                break
663
 
            elif key == "window resize":
 
500
            elif key == u"window resize":
664
501
                self.size = self.screen.get_cols_rows()
665
502
                self.refresh()
666
 
            elif key == "ctrl l":
667
 
                self.screen.clear()
 
503
            elif key == u"\f":  # Ctrl-L
668
504
                self.refresh()
669
 
            elif key == "l" or key == "D":
 
505
            elif key == u"l" or key == u"D":
670
506
                self.toggle_log_display()
671
507
                self.refresh()
672
 
            elif key == "w" or key == "i":
 
508
            elif key == u"w" or key == u"i":
673
509
                self.change_log_display()
674
510
                self.refresh()
675
 
            elif key == "?" or key == "f1" or key == "esc":
 
511
            elif key == u"?" or key == u"f1" or key == u"esc":
676
512
                if not self.log_visible:
677
513
                    self.log_visible = True
678
514
                    self.rebuild()
679
 
                self.log_message_raw(("bold",
680
 
                                      "  ".
681
 
                                      join(("q: Quit",
682
 
                                            "?: Help",
683
 
                                            "l: Log window toggle",
684
 
                                            "TAB: Switch window",
685
 
                                            "w: Wrap (log lines)",
686
 
                                            "v: Toggle verbose log",
687
 
                                            ))))
688
 
                self.log_message_raw(("bold",
689
 
                                      "  "
690
 
                                      .join(("Clients:",
691
 
                                             "+: Enable",
692
 
                                             "-: Disable",
693
 
                                             "R: Remove",
694
 
                                             "s: Start new checker",
695
 
                                             "S: Stop checker",
696
 
                                             "C: Checker OK",
697
 
                                             "a: Approve",
698
 
                                             "d: Deny"))))
 
515
                self.log_message_raw((u"bold",
 
516
                                      u"  ".
 
517
                                      join((u"q: Quit",
 
518
                                            u"?: Help",
 
519
                                            u"l: Log window toggle",
 
520
                                            u"TAB: Switch window",
 
521
                                            u"w: Wrap (log)"))))
 
522
                self.log_message_raw((u"bold",
 
523
                                      u"  "
 
524
                                      .join((u"Clients:",
 
525
                                             u"e: Enable",
 
526
                                             u"d: Disable",
 
527
                                             u"r: Remove",
 
528
                                             u"s: Start new checker",
 
529
                                             u"S: Stop checker",
 
530
                                             u"C: Checker OK"))))
699
531
                self.refresh()
700
 
            elif key == "tab":
 
532
            elif key == u"tab":
701
533
                if self.topwidget.get_focus() is self.logbox:
702
534
                    self.topwidget.set_focus(0)
703
535
                else:
704
536
                    self.topwidget.set_focus(self.logbox)
705
537
                self.refresh()
706
 
            elif key == "v":
707
 
                if self.log_level == 0:
708
 
                    self.log_level = 1
709
 
                    self.log_message("Verbose mode: Off")
710
 
                else:
711
 
                    self.log_level = 0
712
 
                    self.log_message("Verbose mode: On")
713
 
            # elif (key == "end" or key == "meta >" or key == "G"
714
 
            #       or key == ">"):
715
 
            #     pass            # xxx end-of-buffer
716
 
            # elif (key == "home" or key == "meta <" or key == "g"
717
 
            #       or key == "<"):
718
 
            #     pass            # xxx beginning-of-buffer
719
 
            # elif key == "ctrl e" or key == "$":
720
 
            #     pass            # xxx move-end-of-line
721
 
            # elif key == "ctrl a" or key == "^":
722
 
            #     pass            # xxx move-beginning-of-line
723
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
724
 
            #     pass            # xxx left
725
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
726
 
            #     pass            # xxx right
727
 
            # elif key == "a":
728
 
            #     pass            # scroll up log
729
 
            # elif key == "z":
730
 
            #     pass            # scroll down log
 
538
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
539
            #      or key == u">"):
 
540
            #    pass            # xxx end-of-buffer
 
541
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
542
            #      or key == u"<"):
 
543
            #    pass            # xxx beginning-of-buffer
 
544
            #elif key == u"ctrl e" or key == u"$":
 
545
            #    pass            # xxx move-end-of-line
 
546
            #elif key == u"ctrl a" or key == u"^":
 
547
            #    pass            # xxx move-beginning-of-line
 
548
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
549
            #    pass            # xxx left
 
550
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
551
            #    pass            # xxx right
 
552
            #elif key == u"a":
 
553
            #    pass            # scroll up log
 
554
            #elif key == u"z":
 
555
            #    pass            # scroll down log
731
556
            elif self.topwidget.selectable():
732
557
                self.topwidget.keypress(self.size, key)
733
558
                self.refresh()
734
559
        return True
735
560
 
736
 
 
737
561
ui = UserInterface()
738
562
try:
739
563
    ui.run()
740
 
except KeyboardInterrupt:
741
 
    ui.screen.stop()
742
 
except Exception as e:
743
 
    ui.log_message(str(e))
 
564
except Exception, e:
 
565
    ui.log_message(unicode(e))
744
566
    ui.screen.stop()
745
567
    raise