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Viewing changes to mandos-monitor

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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added added

removed removed

Lines of Context:
mandos-monitor
1
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
# 
4
 
# Mandos Monitor - Control and monitor the Mandos server
5
 
# 
6
 
# Copyright © 2009-2015 Teddy Hogeborn
7
 
# Copyright © 2009-2015 Björn Påhlsson
8
 
# 
9
 
# This program is free software: you can redistribute it and/or modify
10
 
# it under the terms of the GNU General Public License as published by
11
 
# the Free Software Foundation, either version 3 of the License, or
12
 
# (at your option) any later version.
13
 
#
14
 
#     This program is distributed in the hope that it will be useful,
15
 
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
16
 
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
 
#     GNU General Public License for more details.
18
 
# 
19
 
# You should have received a copy of the GNU General Public License
20
 
# along with this program.  If not, see
21
 
# <http://www.gnu.org/licenses/>.
22
 
# 
23
 
# Contact the authors at <mandos@recompile.se>.
24
 
# 
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
 
try:
43
 
    import gobject
44
 
except ImportError:
45
 
    from gi.repository import GObject as gobject
 
16
import gobject
46
17
 
47
18
import dbus
48
19
 
 
20
import UserList
 
21
 
49
22
import locale
50
23
 
51
 
if sys.version_info.major == 2:
52
 
    str = unicode
53
 
 
54
 
locale.setlocale(locale.LC_ALL, '')
55
 
 
56
 
import logging
57
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
24
locale.setlocale(locale.LC_ALL, u'')
58
25
 
59
26
# Some useful constants
60
 
domain = 'se.recompile'
 
27
domain = 'se.bsnet.fukt'
61
28
server_interface = domain + '.Mandos'
62
29
client_interface = domain + '.Mandos.Client'
63
 
version = "1.7.1"
64
 
 
65
 
try:
66
 
    dbus.OBJECT_MANAGER_IFACE
67
 
except AttributeError:
68
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
69
 
 
70
 
def isoformat_to_datetime(iso):
71
 
    "Parse an ISO 8601 date string to a datetime.datetime()"
72
 
    if not iso:
73
 
        return None
74
 
    d, t = iso.split("T", 1)
75
 
    year, month, day = d.split("-", 2)
76
 
    hour, minute, second = t.split(":", 2)
77
 
    second, fraction = divmod(float(second), 1)
78
 
    return datetime.datetime(int(year),
79
 
                             int(month),
80
 
                             int(day),
81
 
                             int(hour),
82
 
                             int(minute),
83
 
                             int(second),           # Whole seconds
84
 
                             int(fraction*1000000)) # Microseconds
 
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):
 
45
    def __init__(self, proxy_object=None, *args, **kwargs):
92
46
        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(
102
 
                self.proxy.GetAll(client_interface,
103
 
                                  dbus_interface
104
 
                                  = dbus.PROPERTIES_IFACE))
105
 
        
106
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
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)
107
59
    
108
 
    def properties_changed(self, interface, properties, invalidated):
109
 
        """This is called whenever we get a PropertiesChanged signal
110
 
        It updates the changed properties in the "properties" dict.
 
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.
111
63
        """
112
64
        # Update properties dict with new value
113
 
        if interface == client_interface:
114
 
            self.properties.update(properties)
115
 
    
116
 
    def delete(self):
117
 
        self.property_changed_match.remove()
 
65
        self.properties[property] = value
118
66
 
119
67
 
120
68
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
122
70
    """
123
71
    
124
72
    def __init__(self, server_proxy_object=None, update_hook=None,
125
 
                 delete_hook=None, logger=None, **kwargs):
 
73
                 delete_hook=None, logger=None, *args, **kwargs):
126
74
        # Called on update
127
75
        self.update_hook = update_hook
128
76
        # Called on delete
132
80
        # Logger
133
81
        self.logger = logger
134
82
        
135
 
        self._update_timer_callback_tag = None
136
 
        
137
83
        # The widget shown normally
138
 
        self._text_widget = urwid.Text("")
 
84
        self._text_widget = urwid.Text(u"")
139
85
        # The widget shown when we have focus
140
 
        self._focus_text_widget = urwid.Text("")
141
 
        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)
142
90
        self.update()
143
91
        self.opened = False
144
 
        
145
 
        self.match_objects = (
146
 
            self.proxy.connect_to_signal("CheckerCompleted",
147
 
                                         self.checker_completed,
148
 
                                         client_interface,
149
 
                                         byte_arrays=True),
150
 
            self.proxy.connect_to_signal("CheckerStarted",
151
 
                                         self.checker_started,
152
 
                                         client_interface,
153
 
                                         byte_arrays=True),
154
 
            self.proxy.connect_to_signal("GotSecret",
155
 
                                         self.got_secret,
156
 
                                         client_interface,
157
 
                                         byte_arrays=True),
158
 
            self.proxy.connect_to_signal("NeedApproval",
159
 
                                         self.need_approval,
160
 
                                         client_interface,
161
 
                                         byte_arrays=True),
162
 
            self.proxy.connect_to_signal("Rejected",
163
 
                                         self.rejected,
164
 
                                         client_interface,
165
 
                                         byte_arrays=True))
166
 
        self.logger('Created client {}'
167
 
                    .format(self.properties["Name"]), level=0)
168
 
    
169
 
    def using_timer(self, flag):
170
 
        """Call this method with True or False when timer should be
171
 
        activated or deactivated.
172
 
        """
173
 
        if flag and self._update_timer_callback_tag is None:
174
 
            # Will update the shown timer value every second
175
 
            self._update_timer_callback_tag = (gobject.timeout_add
176
 
                                               (1000,
177
 
                                                self.update_timer))
178
 
        elif not (flag or self._update_timer_callback_tag is None):
179
 
            gobject.source_remove(self._update_timer_callback_tag)
180
 
            self._update_timer_callback_tag = None
 
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)
181
108
    
182
109
    def checker_completed(self, exitstatus, condition, command):
183
110
        if exitstatus == 0:
184
 
            self.logger('Checker for client {} (command "{}")'
185
 
                        ' succeeded'.format(self.properties["Name"],
186
 
                                            command), level=0)
187
 
            self.update()
 
111
            self.logger(u'Checker for client %s (command "%s")'
 
112
                        u' was successful'
 
113
                        % (self.properties[u"name"], command))
188
114
            return
189
 
        # Checker failed
190
115
        if os.WIFEXITED(condition):
191
 
            self.logger('Checker for client {} (command "{}") failed'
192
 
                        ' with exit code {}'
193
 
                        .format(self.properties["Name"], command,
194
 
                                os.WEXITSTATUS(condition)))
195
 
        elif os.WIFSIGNALED(condition):
196
 
            self.logger('Checker for client {} (command "{}") was'
197
 
                        ' killed by signal {}'
198
 
                        .format(self.properties["Name"], command,
199
 
                                os.WTERMSIG(condition)))
200
 
        self.update()
 
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')
201
132
    
202
133
    def checker_started(self, command):
203
 
        """Server signals that a checker started."""
204
 
        self.logger('Client {} started checker "{}"'
205
 
                    .format(self.properties["Name"],
206
 
                            command), level=0)
 
134
        self.logger(u'Client %s started checker "%s"'
 
135
                    % (self.properties[u"name"], unicode(command)))
207
136
    
208
137
    def got_secret(self):
209
 
        self.logger('Client {} received its secret'
210
 
                    .format(self.properties["Name"]))
211
 
    
212
 
    def need_approval(self, timeout, default):
213
 
        if not default:
214
 
            message = 'Client {} needs approval within {} seconds'
215
 
        else:
216
 
            message = 'Client {} will get its secret in {} seconds'
217
 
        self.logger(message.format(self.properties["Name"],
218
 
                                   timeout/1000))
219
 
    
220
 
    def rejected(self, reason):
221
 
        self.logger('Client {} was rejected; reason: {}'
222
 
                    .format(self.properties["Name"], reason))
 
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"])
223
144
    
224
145
    def selectable(self):
225
146
        """Make this a "selectable" widget.
226
147
        This overrides the method from urwid.FlowWidget."""
227
148
        return True
228
149
    
229
 
    def rows(self, maxcolrow, focus=False):
 
150
    def rows(self, (maxcol,), focus=False):
230
151
        """How many rows this widget will occupy might depend on
231
152
        whether we have focus or not.
232
153
        This overrides the method from urwid.FlowWidget"""
233
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
154
        return self.current_widget(focus).rows((maxcol,), focus=focus)
234
155
    
235
156
    def current_widget(self, focus=False):
236
157
        if focus or self.opened:
240
161
    def update(self):
241
162
        "Called when what is visible on the screen should be updated."
242
163
        # How to add standout mode to a style
243
 
        with_standout = { "normal": "standout",
244
 
                          "bold": "bold-standout",
245
 
                          "underline-blink":
246
 
                              "underline-blink-standout",
247
 
                          "bold-underline-blink":
248
 
                              "bold-underline-blink-standout",
 
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",
249
170
                          }
250
171
        
251
172
        # Rebuild focus and non-focus widgets using current properties
252
 
        
253
 
        # Base part of a client. Name!
254
 
        base = '{name}: '.format(name=self.properties["Name"])
255
 
        if not self.properties["Enabled"]:
256
 
            message = "DISABLED"
257
 
            self.using_timer(False)
258
 
        elif self.properties["ApprovalPending"]:
259
 
            timeout = datetime.timedelta(milliseconds
260
 
                                         = self.properties
261
 
                                         ["ApprovalDelay"])
262
 
            last_approval_request = isoformat_to_datetime(
263
 
                self.properties["LastApprovalRequest"])
264
 
            if last_approval_request is not None:
265
 
                timer = max(timeout - (datetime.datetime.utcnow()
266
 
                                       - last_approval_request),
267
 
                            datetime.timedelta())
268
 
            else:
269
 
                timer = datetime.timedelta()
270
 
            if self.properties["ApprovedByDefault"]:
271
 
                message = "Approval in {}. (d)eny?"
272
 
            else:
273
 
                message = "Denial in {}. (a)pprove?"
274
 
            message = message.format(str(timer).rsplit(".", 1)[0])
275
 
            self.using_timer(True)
276
 
        elif self.properties["LastCheckerStatus"] != 0:
277
 
            # When checker has failed, show timer until client expires
278
 
            expires = self.properties["Expires"]
279
 
            if expires == "":
280
 
                timer = datetime.timedelta(0)
281
 
            else:
282
 
                expires = (datetime.datetime.strptime
283
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
284
 
                timer = max(expires - datetime.datetime.utcnow(),
285
 
                            datetime.timedelta())
286
 
            message = ('A checker has failed! Time until client'
287
 
                       ' gets disabled: {}'
288
 
                       .format(str(timer).rsplit(".", 1)[0]))
289
 
            self.using_timer(True)
290
 
        else:
291
 
            message = "enabled"
292
 
            self.using_timer(False)
293
 
        self._text = "{}{}".format(base, message)
294
 
        
 
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")})
295
179
        if not urwid.supports_unicode():
296
180
            self._text = self._text.encode("ascii", "replace")
297
 
        textlist = [("normal", self._text)]
 
181
        textlist = [(u"normal", self._text)]
298
182
        self._text_widget.set_text(textlist)
299
183
        self._focus_text_widget.set_text([(with_standout[text[0]],
300
184
                                           text[1])
308
192
        if self.update_hook is not None:
309
193
            self.update_hook()
310
194
    
311
 
    def update_timer(self):
312
 
        """called by gobject. Will indefinitely loop until
313
 
        gobject.source_remove() on tag is called"""
314
 
        self.update()
315
 
        return True             # Keep calling this
316
 
    
317
 
    def delete(self, **kwargs):
318
 
        if self._update_timer_callback_tag is not None:
319
 
            gobject.source_remove(self._update_timer_callback_tag)
320
 
            self._update_timer_callback_tag = None
321
 
        for match in self.match_objects:
322
 
            match.remove()
323
 
        self.match_objects = ()
 
195
    def delete(self):
324
196
        if self.delete_hook is not None:
325
197
            self.delete_hook(self)
326
 
        return super(MandosClientWidget, self).delete(**kwargs)
327
198
    
328
 
    def render(self, maxcolrow, focus=False):
 
199
    def render(self, (maxcol,), focus=False):
329
200
        """Render differently if we have focus.
330
201
        This overrides the method from urwid.FlowWidget"""
331
 
        return self.current_widget(focus).render(maxcolrow,
 
202
        return self.current_widget(focus).render((maxcol,),
332
203
                                                 focus=focus)
333
204
    
334
 
    def keypress(self, maxcolrow, key):
 
205
    def keypress(self, (maxcol,), key):
335
206
        """Handle keys.
336
207
        This overrides the method from urwid.FlowWidget"""
337
 
        if key == "+":
338
 
            self.proxy.Set(client_interface, "Enabled",
339
 
                           dbus.Boolean(True), ignore_reply = True,
340
 
                           dbus_interface = dbus.PROPERTIES_IFACE)
341
 
        elif key == "-":
342
 
            self.proxy.Set(client_interface, "Enabled", False,
343
 
                           ignore_reply = True,
344
 
                           dbus_interface = dbus.PROPERTIES_IFACE)
345
 
        elif key == "a":
346
 
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
347
 
                               dbus_interface = client_interface,
348
 
                               ignore_reply=True)
349
 
        elif key == "d":
350
 
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
351
 
                                  dbus_interface = client_interface,
352
 
                               ignore_reply=True)
353
 
        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":
354
213
            self.server_proxy_object.RemoveClient(self.proxy
355
 
                                                  .object_path,
356
 
                                                  ignore_reply=True)
357
 
        elif key == "s":
358
 
            self.proxy.Set(client_interface, "CheckerRunning",
359
 
                           dbus.Boolean(True), ignore_reply = True,
360
 
                           dbus_interface = dbus.PROPERTIES_IFACE)
361
 
        elif key == "S":
362
 
            self.proxy.Set(client_interface, "CheckerRunning",
363
 
                           dbus.Boolean(False), ignore_reply = True,
364
 
                           dbus_interface = dbus.PROPERTIES_IFACE)
365
 
        elif key == "C":
366
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
367
 
                                 ignore_reply=True)
 
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()
368
221
        # xxx
369
 
#         elif key == "p" or key == "=":
 
222
#         elif key == u"p" or key == "=":
370
223
#             self.proxy.pause()
371
 
#         elif key == "u" or key == ":":
 
224
#         elif key == u"u" or key == ":":
372
225
#             self.proxy.unpause()
373
 
#         elif key == "RET":
 
226
#         elif key == u"RET":
374
227
#             self.open()
375
228
        else:
376
229
            return key
377
230
    
378
 
    def properties_changed(self, interface, properties, invalidated):
379
 
        """Call self.update() if any properties changed.
 
231
    def property_changed(self, property=None, value=None,
 
232
                         *args, **kwargs):
 
233
        """Call self.update() if old value is not new value.
380
234
        This overrides the method from MandosClientPropertyCache"""
381
 
        old_values = { key: self.properties.get(key)
382
 
                       for key in properties.keys() }
383
 
        super(MandosClientWidget, self).properties_changed(
384
 
            interface, properties, invalidated)
385
 
        if any(old_values[key] != self.properties.get(key)
386
 
               for key in old_values):
 
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:
387
240
            self.update()
388
241
 
389
242
 
392
245
    "down" key presses, thus not allowing any containing widgets to
393
246
    use them as an excuse to shift focus away from this widget.
394
247
    """
395
 
    def keypress(self, *args, **kwargs):
396
 
        ret = super(ConstrainedListBox, self).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", "bold,underline,blink"),
422
 
                ("bold-standout",
423
 
                 "bold,standout", "default", "bold,standout"),
424
 
                ("underline-blink-standout",
425
 
                 "underline,blink,standout", "default",
426
 
                 "underline,blink,standout"),
427
 
                ("bold-underline-blink-standout",
428
 
                 "bold,underline,blink,standout", "default",
429
 
                 "bold,underline,blink,standout"),
 
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")),
430
282
                ))
431
283
        
432
284
        if urwid.supports_unicode():
433
 
            self.divider = "─" # \u2500
434
 
            #self.divider = "━" # \u2501
 
285
            self.divider = u"─" # \u2500
 
286
            #self.divider = u"━" # \u2501
435
287
        else:
436
 
            #self.divider = "-" # \u002d
437
 
            self.divider = "_" # \u005f
 
288
            #self.divider = u"-" # \u002d
 
289
            self.divider = u"_" # \u005f
438
290
        
439
291
        self.screen.start()
440
292
        
447
299
        self.log = []
448
300
        self.max_log_length = max_log_length
449
301
        
450
 
        self.log_level = log_level
451
 
        
452
302
        # We keep a reference to the log widget so we can remove it
453
303
        # from the ListWalker without it getting destroyed
454
304
        self.logbox = ConstrainedListBox(self.log)
456
306
        # This keeps track of whether self.uilist currently has
457
307
        # self.logbox in it or not
458
308
        self.log_visible = True
459
 
        self.log_wrap = "any"
 
309
        self.log_wrap = u"any"
460
310
        
461
311
        self.rebuild()
462
 
        self.log_message_raw(("bold",
463
 
                              "Mandos Monitor version " + version))
464
 
        self.log_message_raw(("bold",
465
 
                              "q: Quit  ?: Help"))
 
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"))
466
316
        
467
317
        self.busname = domain + '.Mandos'
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)
469
361
    
470
362
    def client_not_found(self, fingerprint, address):
471
 
        self.log_message("Client with address {} and fingerprint {}"
472
 
                         " could not be found"
473
 
                         .format(address, fingerprint))
 
363
        self.log_message((u"Client with address %s and fingerprint %s"
 
364
                          u" could not be found" % (address,
 
365
                                                    fingerprint)))
474
366
    
475
367
    def rebuild(self):
476
368
        """This rebuilds the User Interface.
477
369
        Call this when the widget layout needs to change"""
478
370
        self.uilist = []
479
371
        #self.uilist.append(urwid.ListBox(self.clients))
480
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
481
 
                                                          clients),
 
372
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
482
373
                                       #header=urwid.Divider(),
483
374
                                       header=None,
484
 
                                       footer=
485
 
                                       urwid.Divider(div_char=
486
 
                                                     self.divider)))
 
375
                                       footer=urwid.Divider(div_char=self.divider)))
487
376
        if self.log_visible:
488
377
            self.uilist.append(self.logbox)
 
378
            pass
489
379
        self.topwidget = urwid.Pile(self.uilist)
490
380
    
491
 
    def log_message(self, message, level=1):
492
 
        """Log message formatted with timestamp"""
493
 
        if level < self.log_level:
494
 
            return
 
381
    def log_message(self, message):
495
382
        timestamp = datetime.datetime.now().isoformat()
496
 
        self.log_message_raw("{}: {}".format(timestamp, message),
497
 
                             level=level)
 
383
        self.log_message_raw(timestamp + u": " + message)
498
384
    
499
 
    def log_message_raw(self, markup, level=1):
 
385
    def log_message_raw(self, markup):
500
386
        """Add a log message to the log buffer."""
501
 
        if level < self.log_level:
502
 
            return
503
387
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
504
388
        if (self.max_log_length
505
389
            and len(self.log) > self.max_log_length):
506
390
            del self.log[0:len(self.log)-self.max_log_length-1]
507
391
        self.logbox.set_focus(len(self.logbox.body.contents),
508
 
                              coming_from="above")
 
392
                              coming_from=u"above")
509
393
        self.refresh()
510
394
    
511
395
    def toggle_log_display(self):
512
396
        """Toggle visibility of the log buffer."""
513
397
        self.log_visible = not self.log_visible
514
398
        self.rebuild()
515
 
        self.log_message("Log visibility changed to: {}"
516
 
                         .format(self.log_visible), level=0)
 
399
        self.log_message(u"Log visibility changed to: "
 
400
                         + unicode(self.log_visible))
517
401
    
518
402
    def change_log_display(self):
519
403
        """Change type of log display.
520
404
        Currently, this toggles wrapping of text lines."""
521
 
        if self.log_wrap == "clip":
522
 
            self.log_wrap = "any"
 
405
        if self.log_wrap == u"clip":
 
406
            self.log_wrap = u"any"
523
407
        else:
524
 
            self.log_wrap = "clip"
 
408
            self.log_wrap = u"clip"
525
409
        for textwidget in self.log:
526
410
            textwidget.set_wrap_mode(self.log_wrap)
527
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
528
 
                         level=0)
 
411
        self.log_message(u"Wrap mode: " + self.log_wrap)
529
412
    
530
 
    def find_and_remove_client(self, path, interfaces):
531
 
        """Find a client by its object path and remove it.
 
413
    def find_and_remove_client(self, path, name):
 
414
        """Find an client from its object path and remove it.
532
415
        
533
 
        This is connected to the InterfacesRemoved signal from the
 
416
        This is connected to the ClientRemoved signal from the
534
417
        Mandos server object."""
535
 
        if client_interface not in interfaces:
536
 
            # Not a Mandos client object; ignore
537
 
            return
538
418
        try:
539
419
            client = self.clients_dict[path]
540
420
        except KeyError:
541
421
            # not found?
542
 
            self.log_message("Unknown client {!r} removed"
543
 
                             .format(path))
544
422
            return
545
 
        client.delete()
 
423
        self.remove_client(client, path)
546
424
    
547
 
    def add_new_client(self, path, ifs_and_props):
548
 
        """Find a client by its object path and remove it.
549
 
        
550
 
        This is connected to the InterfacesAdded signal from the
551
 
        Mandos server object.
552
 
        """
553
 
        if client_interface not in ifs_and_props:
554
 
            # Not a Mandos client object; ignore
555
 
            return
 
425
    def add_new_client(self, path):
556
426
        client_proxy_object = self.bus.get_object(self.busname, path)
557
427
        self.add_client(MandosClientWidget(server_proxy_object
558
428
                                           =self.mandos_serv,
563
433
                                           delete_hook
564
434
                                           =self.remove_client,
565
435
                                           logger
566
 
                                           =self.log_message,
567
 
                                           properties
568
 
                                           = dict(ifs_and_props[
569
 
                                               client_interface])),
 
436
                                           =self.log_message),
570
437
                        path=path)
571
438
    
572
439
    def add_client(self, client, path=None):
574
441
        if path is None:
575
442
            path = client.proxy.object_path
576
443
        self.clients_dict[path] = client
577
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
444
        self.clients.sort(None, lambda c: c.properties[u"name"])
578
445
        self.refresh()
579
446
    
580
447
    def remove_client(self, client, path=None):
582
449
        if path is None:
583
450
            path = client.proxy.object_path
584
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()
585
457
        self.refresh()
586
458
    
587
459
    def refresh(self):
591
463
    
592
464
    def run(self):
593
465
        """Start the main loop and exit when it's done."""
594
 
        self.bus = dbus.SystemBus()
595
 
        mandos_dbus_objc = self.bus.get_object(
596
 
            self.busname, "/", follow_name_owner_changes=True)
597
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
598
 
                                          dbus_interface
599
 
                                          = server_interface)
600
 
        try:
601
 
            mandos_clients = (self.mandos_serv
602
 
                              .GetAllClientsWithProperties())
603
 
            if not mandos_clients:
604
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
605
 
        except dbus.exceptions.DBusException:
606
 
            self.log_message_raw(("bold", "Note: No Mandos server running."))
607
 
            mandos_clients = dbus.Dictionary()
608
 
        
609
 
        (self.mandos_serv
610
 
         .connect_to_signal("InterfacesRemoved",
611
 
                            self.find_and_remove_client,
612
 
                            dbus_interface
613
 
                            = dbus.OBJECT_MANAGER_IFACE,
614
 
                            byte_arrays=True))
615
 
        (self.mandos_serv
616
 
         .connect_to_signal("InterfacesAdded",
617
 
                            self.add_new_client,
618
 
                            dbus_interface
619
 
                            = dbus.OBJECT_MANAGER_IFACE,
620
 
                            byte_arrays=True))
621
 
        (self.mandos_serv
622
 
         .connect_to_signal("ClientNotFound",
623
 
                            self.client_not_found,
624
 
                            dbus_interface=server_interface,
625
 
                            byte_arrays=True))
626
 
        for path, client in mandos_clients.items():
627
 
            client_proxy_object = self.bus.get_object(self.busname,
628
 
                                                      path)
629
 
            self.add_client(MandosClientWidget(server_proxy_object
630
 
                                               =self.mandos_serv,
631
 
                                               proxy_object
632
 
                                               =client_proxy_object,
633
 
                                               properties=client,
634
 
                                               update_hook
635
 
                                               =self.refresh,
636
 
                                               delete_hook
637
 
                                               =self.remove_client,
638
 
                                               logger
639
 
                                               =self.log_message),
640
 
                            path=path)
641
 
        
642
466
        self.refresh()
643
467
        self._input_callback_tag = (gobject.io_add_watch
644
468
                                    (sys.stdin.fileno(),
654
478
    
655
479
    def process_input(self, source, condition):
656
480
        keys = self.screen.get_input()
657
 
        translations = { "ctrl n": "down",      # Emacs
658
 
                         "ctrl p": "up",        # Emacs
659
 
                         "ctrl v": "page down", # Emacs
660
 
                         "meta v": "page up",   # Emacs
661
 
                         " ": "page down",      # less
662
 
                         "f": "page down",      # less
663
 
                         "b": "page up",        # less
664
 
                         "j": "down",           # vi
665
 
                         "k": "up",             # vi
 
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
666
490
                         }
667
491
        for key in keys:
668
492
            try:
670
494
            except KeyError:    # :-)
671
495
                pass
672
496
            
673
 
            if key == "q" or key == "Q":
 
497
            if key == u"q" or key == u"Q":
674
498
                self.stop()
675
499
                break
676
 
            elif key == "window resize":
 
500
            elif key == u"window resize":
677
501
                self.size = self.screen.get_cols_rows()
678
502
                self.refresh()
679
 
            elif key == "ctrl l":
680
 
                self.screen.clear()
 
503
            elif key == u"\f":  # Ctrl-L
681
504
                self.refresh()
682
 
            elif key == "l" or key == "D":
 
505
            elif key == u"l" or key == u"D":
683
506
                self.toggle_log_display()
684
507
                self.refresh()
685
 
            elif key == "w" or key == "i":
 
508
            elif key == u"w" or key == u"i":
686
509
                self.change_log_display()
687
510
                self.refresh()
688
 
            elif key == "?" or key == "f1" or key == "esc":
 
511
            elif key == u"?" or key == u"f1" or key == u"esc":
689
512
                if not self.log_visible:
690
513
                    self.log_visible = True
691
514
                    self.rebuild()
692
 
                self.log_message_raw(("bold",
693
 
                                      "  ".
694
 
                                      join(("q: Quit",
695
 
                                            "?: Help",
696
 
                                            "l: Log window toggle",
697
 
                                            "TAB: Switch window",
698
 
                                            "w: Wrap (log lines)",
699
 
                                            "v: Toggle verbose log",
700
 
                                            ))))
701
 
                self.log_message_raw(("bold",
702
 
                                      "  "
703
 
                                      .join(("Clients:",
704
 
                                             "+: Enable",
705
 
                                             "-: Disable",
706
 
                                             "R: Remove",
707
 
                                             "s: Start new checker",
708
 
                                             "S: Stop checker",
709
 
                                             "C: Checker OK",
710
 
                                             "a: Approve",
711
 
                                             "d: Deny"))))
 
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"))))
712
531
                self.refresh()
713
 
            elif key == "tab":
 
532
            elif key == u"tab":
714
533
                if self.topwidget.get_focus() is self.logbox:
715
534
                    self.topwidget.set_focus(0)
716
535
                else:
717
536
                    self.topwidget.set_focus(self.logbox)
718
537
                self.refresh()
719
 
            elif key == "v":
720
 
                if self.log_level == 0:
721
 
                    self.log_level = 1
722
 
                    self.log_message("Verbose mode: Off")
723
 
                else:
724
 
                    self.log_level = 0
725
 
                    self.log_message("Verbose mode: On")
726
 
            #elif (key == "end" or key == "meta >" or key == "G"
727
 
            #      or key == ">"):
 
538
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
539
            #      or key == u">"):
728
540
            #    pass            # xxx end-of-buffer
729
 
            #elif (key == "home" or key == "meta <" or key == "g"
730
 
            #      or key == "<"):
 
541
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
542
            #      or key == u"<"):
731
543
            #    pass            # xxx beginning-of-buffer
732
 
            #elif key == "ctrl e" or key == "$":
 
544
            #elif key == u"ctrl e" or key == u"$":
733
545
            #    pass            # xxx move-end-of-line
734
 
            #elif key == "ctrl a" or key == "^":
 
546
            #elif key == u"ctrl a" or key == u"^":
735
547
            #    pass            # xxx move-beginning-of-line
736
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
548
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
737
549
            #    pass            # xxx left
738
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
550
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
739
551
            #    pass            # xxx right
740
 
            #elif key == "a":
 
552
            #elif key == u"a":
741
553
            #    pass            # scroll up log
742
 
            #elif key == "z":
 
554
            #elif key == u"z":
743
555
            #    pass            # scroll down log
744
556
            elif self.topwidget.selectable():
745
557
                self.topwidget.keypress(self.size, key)
749
561
ui = UserInterface()
750
562
try:
751
563
    ui.run()
752
 
except KeyboardInterrupt:
753
 
    ui.screen.stop()
754
 
except Exception as e:
755
 
    ui.log_message(str(e))
 
564
except Exception, e:
 
565
    ui.log_message(unicode(e))
756
566
    ui.screen.stop()
757
567
    raise