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  • Committer: Teddy Hogeborn
  • Date: 2013-10-28 20:08:32 UTC
  • mto: (237.7.272 trunk)
  • mto: This revision was merged to the branch mainline in revision 307.
  • Revision ID: teddy@recompile.se-20131028200832-80d1k8c5e8mugpkx
Syntax fix; use "raise" better in Mandos server.

* mandos: Syntax fix; use "raise" better in Mandos server; Always
          raise instances, not classes, skip argument when re-raising,
          etc.

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mandos-monitor
1
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
 
3
# 
 
4
# Mandos Monitor - Control and monitor the Mandos server
 
5
# 
 
6
# Copyright © 2009-2013 Teddy Hogeborn
 
7
# Copyright © 2009-2013 Björn Påhlsson
 
8
# 
 
9
# This program is free software: you can redistribute it and/or modify
 
10
# it under the terms of the GNU General Public License as published by
 
11
# the Free Software Foundation, either version 3 of the License, or
 
12
# (at your option) any later version.
 
13
#
 
14
#     This program is distributed in the hope that it will be useful,
 
15
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
 
16
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
17
#     GNU General Public License for more details.
 
18
# 
 
19
# You should have received a copy of the GNU General Public License
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
 
22
# 
 
23
# Contact the authors at <mandos@recompile.se>.
 
24
# 
3
25
 
4
 
from __future__ import division, absolute_import, with_statement
 
26
from __future__ import (division, absolute_import, print_function,
 
27
                        unicode_literals)
 
28
try:
 
29
    from future_builtins import *
 
30
except ImportError:
 
31
    pass
5
32
 
6
33
import sys
7
34
import os
13
40
import urwid
14
41
 
15
42
from dbus.mainloop.glib import DBusGMainLoop
16
 
import gobject
 
43
try:
 
44
    import gobject
 
45
except ImportError:
 
46
    from gi.repository import GObject as gobject
17
47
 
18
48
import dbus
19
49
 
20
 
import UserList
21
 
 
22
50
import locale
23
51
 
24
 
locale.setlocale(locale.LC_ALL, u'')
 
52
if sys.version_info[0] == 2:
 
53
    str = unicode
 
54
 
 
55
locale.setlocale(locale.LC_ALL, '')
25
56
 
26
57
import logging
27
58
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
28
59
 
29
60
# Some useful constants
30
 
domain = 'se.bsnet.fukt'
 
61
domain = 'se.recompile'
31
62
server_interface = domain + '.Mandos'
32
63
client_interface = domain + '.Mandos.Client'
33
 
version = "1.0.15"
34
 
 
35
 
# Always run in monochrome mode
36
 
urwid.curses_display.curses.has_colors = lambda : False
37
 
 
38
 
# Urwid doesn't support blinking, but we want it.  Since we have no
39
 
# use for underline on its own, we make underline also always blink.
40
 
urwid.curses_display.curses.A_UNDERLINE |= (
41
 
    urwid.curses_display.curses.A_BLINK)
 
64
version = "1.6.2"
42
65
 
43
66
def isoformat_to_datetime(iso):
44
67
    "Parse an ISO 8601 date string to a datetime.datetime()"
45
68
    if not iso:
46
69
        return None
47
 
    d, t = iso.split(u"T", 1)
48
 
    year, month, day = d.split(u"-", 2)
49
 
    hour, minute, second = t.split(u":", 2)
 
70
    d, t = iso.split("T", 1)
 
71
    year, month, day = d.split("-", 2)
 
72
    hour, minute, second = t.split(":", 2)
50
73
    second, fraction = divmod(float(second), 1)
51
74
    return datetime.datetime(int(year),
52
75
                             int(month),
61
84
    properties and calls a hook function when any of them are
62
85
    changed.
63
86
    """
64
 
    def __init__(self, proxy_object=None, *args, **kwargs):
 
87
    def __init__(self, proxy_object=None, properties=None, **kwargs):
65
88
        self.proxy = proxy_object # Mandos Client proxy object
66
 
        
67
 
        self.properties = dict()
68
 
        self.proxy.connect_to_signal(u"PropertyChanged",
69
 
                                     self.property_changed,
70
 
                                     client_interface,
71
 
                                     byte_arrays=True)
72
 
        
73
 
        self.properties.update(
74
 
            self.proxy.GetAll(client_interface,
75
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
76
 
 
77
 
        #XXX This break good super behaviour!
78
 
#        super(MandosClientPropertyCache, self).__init__(
79
 
#            *args, **kwargs)
 
89
        self.properties = dict() if properties is None else properties
 
90
        self.property_changed_match = (
 
91
            self.proxy.connect_to_signal("PropertyChanged",
 
92
                                         self._property_changed,
 
93
                                         client_interface,
 
94
                                         byte_arrays=True))
 
95
        
 
96
        if properties is None:
 
97
            self.properties.update(
 
98
                self.proxy.GetAll(client_interface,
 
99
                                  dbus_interface
 
100
                                  = dbus.PROPERTIES_IFACE))
 
101
        
 
102
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
103
    
 
104
    def _property_changed(self, property, value):
 
105
        """Helper which takes positional arguments"""
 
106
        return self.property_changed(property=property, value=value)
80
107
    
81
108
    def property_changed(self, property=None, value=None):
82
109
        """This is called whenever we get a PropertyChanged signal
84
111
        """
85
112
        # Update properties dict with new value
86
113
        self.properties[property] = value
 
114
    
 
115
    def delete(self):
 
116
        self.property_changed_match.remove()
87
117
 
88
118
 
89
119
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
91
121
    """
92
122
    
93
123
    def __init__(self, server_proxy_object=None, update_hook=None,
94
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
124
                 delete_hook=None, logger=None, **kwargs):
95
125
        # Called on update
96
126
        self.update_hook = update_hook
97
127
        # Called on delete
102
132
        self.logger = logger
103
133
        
104
134
        self._update_timer_callback_tag = None
105
 
        self.last_checker_failed = False
106
135
        
107
136
        # The widget shown normally
108
 
        self._text_widget = urwid.Text(u"")
 
137
        self._text_widget = urwid.Text("")
109
138
        # The widget shown when we have focus
110
 
        self._focus_text_widget = urwid.Text(u"")
111
 
        super(MandosClientWidget, self).__init__(
112
 
            update_hook=update_hook, delete_hook=delete_hook,
113
 
            *args, **kwargs)
 
139
        self._focus_text_widget = urwid.Text("")
 
140
        super(MandosClientWidget, self).__init__(**kwargs)
114
141
        self.update()
115
142
        self.opened = False
116
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
117
 
                                     self.checker_completed,
118
 
                                     client_interface,
119
 
                                     byte_arrays=True)
120
 
        self.proxy.connect_to_signal(u"CheckerStarted",
121
 
                                     self.checker_started,
122
 
                                     client_interface,
123
 
                                     byte_arrays=True)
124
 
        self.proxy.connect_to_signal(u"GotSecret",
125
 
                                     self.got_secret,
126
 
                                     client_interface,
127
 
                                     byte_arrays=True)
128
 
        self.proxy.connect_to_signal(u"NeedApproval",
129
 
                                     self.need_approval,
130
 
                                     client_interface,
131
 
                                     byte_arrays=True)
132
 
        self.proxy.connect_to_signal(u"Rejected",
133
 
                                     self.rejected,
134
 
                                     client_interface,
135
 
                                     byte_arrays=True)
136
 
        last_checked_ok = isoformat_to_datetime(self.properties
137
 
                                                [u"LastCheckedOK"])
138
 
        if last_checked_ok is None:
139
 
            self.last_checker_failed = True
140
 
        else:
141
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
142
 
                                         - last_checked_ok)
143
 
                                        > datetime.timedelta
144
 
                                        (milliseconds=
145
 
                                         self.properties
146
 
                                         [u"Interval"]))
147
 
        if self.last_checker_failed:
 
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 {0}'
 
166
        #            .format(self.properties["Name"]))
 
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
148
174
            self._update_timer_callback_tag = (gobject.timeout_add
149
175
                                               (1000,
150
176
                                                self.update_timer))
 
177
        elif not (flag or self._update_timer_callback_tag is None):
 
178
            gobject.source_remove(self._update_timer_callback_tag)
 
179
            self._update_timer_callback_tag = None
151
180
    
152
181
    def checker_completed(self, exitstatus, condition, command):
153
182
        if exitstatus == 0:
154
 
            if self.last_checker_failed:
155
 
                self.last_checker_failed = False
156
 
                gobject.source_remove(self._update_timer_callback_tag)
157
 
                self._update_timer_callback_tag = None
158
 
            #self.logger(u'Checker for client %s (command "%s")'
159
 
            #            u' was successful'
160
 
            #            % (self.properties[u"Name"], command))
161
183
            self.update()
162
184
            return
163
185
        # Checker failed
164
 
        if not self.last_checker_failed:
165
 
            self.last_checker_failed = True
166
 
            self._update_timer_callback_tag = (gobject.timeout_add
167
 
                                               (1000,
168
 
                                                self.update_timer))
169
186
        if os.WIFEXITED(condition):
170
 
            self.logger(u'Checker for client %s (command "%s")'
171
 
                        u' failed with exit code %s'
172
 
                        % (self.properties[u"Name"], command,
173
 
                           os.WEXITSTATUS(condition)))
 
187
            self.logger('Checker for client {0} (command "{1}")'
 
188
                        ' failed with exit code {2}'
 
189
                        .format(self.properties["Name"], command,
 
190
                                os.WEXITSTATUS(condition)))
174
191
        elif os.WIFSIGNALED(condition):
175
 
            self.logger(u'Checker for client %s (command "%s")'
176
 
                        u' was killed by signal %s'
177
 
                        % (self.properties[u"Name"], command,
178
 
                           os.WTERMSIG(condition)))
 
192
            self.logger('Checker for client {0} (command "{1}") was'
 
193
                        ' killed by signal {2}'
 
194
                        .format(self.properties["Name"], command,
 
195
                                os.WTERMSIG(condition)))
179
196
        elif os.WCOREDUMP(condition):
180
 
            self.logger(u'Checker for client %s (command "%s")'
181
 
                        u' dumped core'
182
 
                        % (self.properties[u"Name"], command))
 
197
            self.logger('Checker for client {0} (command "{1}")'
 
198
                        ' dumped core'
 
199
                        .format(self.properties["Name"], command))
183
200
        else:
184
 
            self.logger(u'Checker for client %s completed'
185
 
                        u' mysteriously')
 
201
            self.logger('Checker for client {0} completed'
 
202
                        ' mysteriously'
 
203
                        .format(self.properties["Name"]))
186
204
        self.update()
187
205
    
188
206
    def checker_started(self, command):
189
 
        #self.logger(u'Client %s started checker "%s"'
190
 
        #            % (self.properties[u"Name"], unicode(command)))
 
207
        """Server signals that a checker started. This could be useful
 
208
           to log in the future. """
 
209
        #self.logger('Client {0} started checker "{1}"'
 
210
        #            .format(self.properties["Name"],
 
211
        #                    str(command)))
191
212
        pass
192
213
    
193
214
    def got_secret(self):
194
 
        self.last_checker_failed = False
195
 
        self.logger(u'Client %s received its secret'
196
 
                    % self.properties[u"Name"])
 
215
        self.logger('Client {0} received its secret'
 
216
                    .format(self.properties["Name"]))
197
217
    
198
218
    def need_approval(self, timeout, default):
199
219
        if not default:
200
 
            message = u'Client %s needs approval within %s seconds'
 
220
            message = 'Client {0} needs approval within {1} seconds'
201
221
        else:
202
 
            message = u'Client %s will get its secret in %s seconds'
203
 
        self.logger(message
204
 
                    % (self.properties[u"Name"], timeout/1000))
 
222
            message = 'Client {0} will get its secret in {1} seconds'
 
223
        self.logger(message.format(self.properties["Name"],
 
224
                                   timeout/1000))
205
225
    
206
226
    def rejected(self, reason):
207
 
        self.logger(u'Client %s was rejected; reason: %s'
208
 
                    % (self.properties[u"Name"], reason))
 
227
        self.logger('Client {0} was rejected; reason: {1}'
 
228
                    .format(self.properties["Name"], reason))
209
229
    
210
230
    def selectable(self):
211
231
        """Make this a "selectable" widget.
212
232
        This overrides the method from urwid.FlowWidget."""
213
233
        return True
214
234
    
215
 
    def rows(self, (maxcol,), focus=False):
 
235
    def rows(self, maxcolrow, focus=False):
216
236
        """How many rows this widget will occupy might depend on
217
237
        whether we have focus or not.
218
238
        This overrides the method from urwid.FlowWidget"""
219
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
239
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
220
240
    
221
241
    def current_widget(self, focus=False):
222
242
        if focus or self.opened:
226
246
    def update(self):
227
247
        "Called when what is visible on the screen should be updated."
228
248
        # How to add standout mode to a style
229
 
        with_standout = { u"normal": u"standout",
230
 
                          u"bold": u"bold-standout",
231
 
                          u"underline-blink":
232
 
                              u"underline-blink-standout",
233
 
                          u"bold-underline-blink":
234
 
                              u"bold-underline-blink-standout",
 
249
        with_standout = { "normal": "standout",
 
250
                          "bold": "bold-standout",
 
251
                          "underline-blink":
 
252
                              "underline-blink-standout",
 
253
                          "bold-underline-blink":
 
254
                              "bold-underline-blink-standout",
235
255
                          }
236
 
 
 
256
        
237
257
        # Rebuild focus and non-focus widgets using current properties
238
 
 
 
258
        
239
259
        # Base part of a client. Name!
240
 
        base = (u'%(name)s: '
241
 
                      % {u"name": self.properties[u"Name"]})
242
 
        if not self.properties[u"Enabled"]:
243
 
            message = u"DISABLED"
244
 
        elif self.properties[u"ApprovalPending"]:
245
 
            if self.properties[u"ApprovedByDefault"]:
246
 
                message = u"Connection established to client. (d)eny?"
247
 
            else:
248
 
                message = u"Seeks approval to send secret. (a)pprove?"
249
 
        elif self.last_checker_failed:
 
260
        base = '{name}: '.format(name=self.properties["Name"])
 
261
        if not self.properties["Enabled"]:
 
262
            message = "DISABLED"
 
263
            self.using_timer(False)
 
264
        elif self.properties["ApprovalPending"]:
250
265
            timeout = datetime.timedelta(milliseconds
251
266
                                         = self.properties
252
 
                                         [u"Timeout"])
253
 
            last_ok = isoformat_to_datetime(
254
 
                max((self.properties[u"LastCheckedOK"]
255
 
                     or self.properties[u"Created"]),
256
 
                    self.properties[u"LastEnabled"]))
257
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
258
 
            message = (u'A checker has failed! Time until client'
259
 
                       u' gets diabled: %s'
260
 
                           % unicode(timer).rsplit(".", 1)[0])
 
267
                                         ["ApprovalDelay"])
 
268
            last_approval_request = isoformat_to_datetime(
 
269
                self.properties["LastApprovalRequest"])
 
270
            if last_approval_request is not None:
 
271
                timer = max(timeout - (datetime.datetime.utcnow()
 
272
                                       - last_approval_request),
 
273
                            datetime.timedelta())
 
274
            else:
 
275
                timer = datetime.timedelta()
 
276
            if self.properties["ApprovedByDefault"]:
 
277
                message = "Approval in {0}. (d)eny?"
 
278
            else:
 
279
                message = "Denial in {0}. (a)pprove?"
 
280
            message = message.format(str(timer).rsplit(".", 1)[0])
 
281
            self.using_timer(True)
 
282
        elif self.properties["LastCheckerStatus"] != 0:
 
283
            # When checker has failed, show timer until client expires
 
284
            expires = self.properties["Expires"]
 
285
            if expires == "":
 
286
                timer = datetime.timedelta(0)
 
287
            else:
 
288
                expires = (datetime.datetime.strptime
 
289
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
290
                timer = max(expires - datetime.datetime.utcnow(),
 
291
                            datetime.timedelta())
 
292
            message = ('A checker has failed! Time until client'
 
293
                       ' gets disabled: {0}'
 
294
                       .format(str(timer).rsplit(".", 1)[0]))
 
295
            self.using_timer(True)
261
296
        else:
262
 
            message = u"enabled"
263
 
        self._text = "%s%s" % (base, message)
264
 
            
 
297
            message = "enabled"
 
298
            self.using_timer(False)
 
299
        self._text = "{0}{1}".format(base, message)
 
300
        
265
301
        if not urwid.supports_unicode():
266
302
            self._text = self._text.encode("ascii", "replace")
267
 
        textlist = [(u"normal", self._text)]
 
303
        textlist = [("normal", self._text)]
268
304
        self._text_widget.set_text(textlist)
269
305
        self._focus_text_widget.set_text([(with_standout[text[0]],
270
306
                                           text[1])
279
315
            self.update_hook()
280
316
    
281
317
    def update_timer(self):
282
 
        "called by gobject"
 
318
        """called by gobject. Will indefinitely loop until
 
319
        gobject.source_remove() on tag is called"""
283
320
        self.update()
284
321
        return True             # Keep calling this
285
322
    
286
 
    def delete(self):
 
323
    def delete(self, **kwargs):
287
324
        if self._update_timer_callback_tag is not None:
288
325
            gobject.source_remove(self._update_timer_callback_tag)
289
326
            self._update_timer_callback_tag = None
 
327
        for match in self.match_objects:
 
328
            match.remove()
 
329
        self.match_objects = ()
290
330
        if self.delete_hook is not None:
291
331
            self.delete_hook(self)
 
332
        return super(MandosClientWidget, self).delete(**kwargs)
292
333
    
293
 
    def render(self, (maxcol,), focus=False):
 
334
    def render(self, maxcolrow, focus=False):
294
335
        """Render differently if we have focus.
295
336
        This overrides the method from urwid.FlowWidget"""
296
 
        return self.current_widget(focus).render((maxcol,),
 
337
        return self.current_widget(focus).render(maxcolrow,
297
338
                                                 focus=focus)
298
339
    
299
 
    def keypress(self, (maxcol,), key):
 
340
    def keypress(self, maxcolrow, key):
300
341
        """Handle keys.
301
342
        This overrides the method from urwid.FlowWidget"""
302
 
        if key == u"+":
303
 
            self.proxy.Enable(dbus_interface = client_interface)
304
 
        elif key == u"-":
305
 
            self.proxy.Disable(dbus_interface = client_interface)
306
 
        elif key == u"a":
 
343
        if key == "+":
 
344
            self.proxy.Enable(dbus_interface = client_interface,
 
345
                              ignore_reply=True)
 
346
        elif key == "-":
 
347
            self.proxy.Disable(dbus_interface = client_interface,
 
348
                               ignore_reply=True)
 
349
        elif key == "a":
307
350
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
308
 
                               dbus_interface = client_interface)
309
 
        elif key == u"d":
 
351
                               dbus_interface = client_interface,
 
352
                               ignore_reply=True)
 
353
        elif key == "d":
310
354
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
311
 
                                  dbus_interface = client_interface)
312
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
355
                                  dbus_interface = client_interface,
 
356
                               ignore_reply=True)
 
357
        elif key == "R" or key == "_" or key == "ctrl k":
313
358
            self.server_proxy_object.RemoveClient(self.proxy
314
 
                                                  .object_path)
315
 
        elif key == u"s":
316
 
            self.proxy.StartChecker(dbus_interface = client_interface)
317
 
        elif key == u"S":
318
 
            self.proxy.StopChecker(dbus_interface = client_interface)
319
 
        elif key == u"C":
320
 
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
359
                                                  .object_path,
 
360
                                                  ignore_reply=True)
 
361
        elif key == "s":
 
362
            self.proxy.StartChecker(dbus_interface = client_interface,
 
363
                                    ignore_reply=True)
 
364
        elif key == "S":
 
365
            self.proxy.StopChecker(dbus_interface = client_interface,
 
366
                                   ignore_reply=True)
 
367
        elif key == "C":
 
368
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
369
                                 ignore_reply=True)
321
370
        # xxx
322
 
#         elif key == u"p" or key == "=":
 
371
#         elif key == "p" or key == "=":
323
372
#             self.proxy.pause()
324
 
#         elif key == u"u" or key == ":":
 
373
#         elif key == "u" or key == ":":
325
374
#             self.proxy.unpause()
326
 
#         elif key == u"RET":
 
375
#         elif key == "RET":
327
376
#             self.open()
328
377
        else:
329
378
            return key
330
379
    
331
 
    def property_changed(self, property=None, value=None,
332
 
                         *args, **kwargs):
 
380
    def property_changed(self, property=None, **kwargs):
333
381
        """Call self.update() if old value is not new value.
334
382
        This overrides the method from MandosClientPropertyCache"""
335
 
        property_name = unicode(property)
 
383
        property_name = str(property)
336
384
        old_value = self.properties.get(property_name)
337
385
        super(MandosClientWidget, self).property_changed(
338
 
            property=property, value=value, *args, **kwargs)
 
386
            property=property, **kwargs)
339
387
        if self.properties.get(property_name) != old_value:
340
388
            self.update()
341
389
 
345
393
    "down" key presses, thus not allowing any containing widgets to
346
394
    use them as an excuse to shift focus away from this widget.
347
395
    """
348
 
    def keypress(self, (maxcol, maxrow), key):
349
 
        ret = super(ConstrainedListBox, self).keypress((maxcol,
350
 
                                                        maxrow), key)
351
 
        if ret in (u"up", u"down"):
 
396
    def keypress(self, *args, **kwargs):
 
397
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
398
        if ret in ("up", "down"):
352
399
            return
353
400
        return ret
354
401
 
363
410
        self.screen = urwid.curses_display.Screen()
364
411
        
365
412
        self.screen.register_palette((
366
 
                (u"normal",
367
 
                 u"default", u"default", None),
368
 
                (u"bold",
369
 
                 u"default", u"default", u"bold"),
370
 
                (u"underline-blink",
371
 
                 u"default", u"default", u"underline"),
372
 
                (u"standout",
373
 
                 u"default", u"default", u"standout"),
374
 
                (u"bold-underline-blink",
375
 
                 u"default", u"default", (u"bold", u"underline")),
376
 
                (u"bold-standout",
377
 
                 u"default", u"default", (u"bold", u"standout")),
378
 
                (u"underline-blink-standout",
379
 
                 u"default", u"default", (u"underline", u"standout")),
380
 
                (u"bold-underline-blink-standout",
381
 
                 u"default", u"default", (u"bold", u"underline",
382
 
                                          u"standout")),
 
413
                ("normal",
 
414
                 "default", "default", None),
 
415
                ("bold",
 
416
                 "bold", "default", "bold"),
 
417
                ("underline-blink",
 
418
                 "underline,blink", "default", "underline,blink"),
 
419
                ("standout",
 
420
                 "standout", "default", "standout"),
 
421
                ("bold-underline-blink",
 
422
                 "bold,underline,blink", "default", "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"),
383
431
                ))
384
432
        
385
433
        if urwid.supports_unicode():
386
 
            self.divider = u"─" # \u2500
387
 
            #self.divider = u"━" # \u2501
 
434
            self.divider = "─" # \u2500
 
435
            #self.divider = "━" # \u2501
388
436
        else:
389
 
            #self.divider = u"-" # \u002d
390
 
            self.divider = u"_" # \u005f
 
437
            #self.divider = "-" # \u002d
 
438
            self.divider = "_" # \u005f
391
439
        
392
440
        self.screen.start()
393
441
        
407
455
        # This keeps track of whether self.uilist currently has
408
456
        # self.logbox in it or not
409
457
        self.log_visible = True
410
 
        self.log_wrap = u"any"
 
458
        self.log_wrap = "any"
411
459
        
412
460
        self.rebuild()
413
 
        self.log_message_raw((u"bold",
414
 
                              u"Mandos Monitor version " + version))
415
 
        self.log_message_raw((u"bold",
416
 
                              u"q: Quit  ?: Help"))
 
461
        self.log_message_raw(("bold",
 
462
                              "Mandos Monitor version " + version))
 
463
        self.log_message_raw(("bold",
 
464
                              "q: Quit  ?: Help"))
417
465
        
418
466
        self.busname = domain + '.Mandos'
419
467
        self.main_loop = gobject.MainLoop()
420
 
        self.bus = dbus.SystemBus()
421
 
        mandos_dbus_objc = self.bus.get_object(
422
 
            self.busname, u"/", follow_name_owner_changes=True)
423
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
424
 
                                          dbus_interface
425
 
                                          = server_interface)
426
 
        try:
427
 
            mandos_clients = (self.mandos_serv
428
 
                              .GetAllClientsWithProperties())
429
 
        except dbus.exceptions.DBusException:
430
 
            mandos_clients = dbus.Dictionary()
431
 
        
432
 
        (self.mandos_serv
433
 
         .connect_to_signal(u"ClientRemoved",
434
 
                            self.find_and_remove_client,
435
 
                            dbus_interface=server_interface,
436
 
                            byte_arrays=True))
437
 
        (self.mandos_serv
438
 
         .connect_to_signal(u"ClientAdded",
439
 
                            self.add_new_client,
440
 
                            dbus_interface=server_interface,
441
 
                            byte_arrays=True))
442
 
        (self.mandos_serv
443
 
         .connect_to_signal(u"ClientNotFound",
444
 
                            self.client_not_found,
445
 
                            dbus_interface=server_interface,
446
 
                            byte_arrays=True))
447
 
        for path, client in mandos_clients.iteritems():
448
 
            client_proxy_object = self.bus.get_object(self.busname,
449
 
                                                      path)
450
 
            self.add_client(MandosClientWidget(server_proxy_object
451
 
                                               =self.mandos_serv,
452
 
                                               proxy_object
453
 
                                               =client_proxy_object,
454
 
                                               properties=client,
455
 
                                               update_hook
456
 
                                               =self.refresh,
457
 
                                               delete_hook
458
 
                                               =self.remove_client,
459
 
                                               logger
460
 
                                               =self.log_message),
461
 
                            path=path)
462
468
    
463
469
    def client_not_found(self, fingerprint, address):
464
 
        self.log_message((u"Client with address %s and fingerprint %s"
465
 
                          u" could not be found" % (address,
466
 
                                                    fingerprint)))
 
470
        self.log_message("Client with address {0} and fingerprint"
 
471
                         " {1} could not be found"
 
472
                         .format(address, fingerprint))
467
473
    
468
474
    def rebuild(self):
469
475
        """This rebuilds the User Interface.
479
485
                                                     self.divider)))
480
486
        if self.log_visible:
481
487
            self.uilist.append(self.logbox)
482
 
            pass
483
488
        self.topwidget = urwid.Pile(self.uilist)
484
489
    
485
490
    def log_message(self, message):
 
491
        """Log message formatted with timestamp"""
486
492
        timestamp = datetime.datetime.now().isoformat()
487
 
        self.log_message_raw(timestamp + u": " + message)
 
493
        self.log_message_raw(timestamp + ": " + message)
488
494
    
489
495
    def log_message_raw(self, markup):
490
496
        """Add a log message to the log buffer."""
493
499
            and len(self.log) > self.max_log_length):
494
500
            del self.log[0:len(self.log)-self.max_log_length-1]
495
501
        self.logbox.set_focus(len(self.logbox.body.contents),
496
 
                              coming_from=u"above")
 
502
                              coming_from="above")
497
503
        self.refresh()
498
504
    
499
505
    def toggle_log_display(self):
500
506
        """Toggle visibility of the log buffer."""
501
507
        self.log_visible = not self.log_visible
502
508
        self.rebuild()
503
 
        #self.log_message(u"Log visibility changed to: "
504
 
        #                 + unicode(self.log_visible))
 
509
        #self.log_message("Log visibility changed to: "
 
510
        #                 + str(self.log_visible))
505
511
    
506
512
    def change_log_display(self):
507
513
        """Change type of log display.
508
514
        Currently, this toggles wrapping of text lines."""
509
 
        if self.log_wrap == u"clip":
510
 
            self.log_wrap = u"any"
 
515
        if self.log_wrap == "clip":
 
516
            self.log_wrap = "any"
511
517
        else:
512
 
            self.log_wrap = u"clip"
 
518
            self.log_wrap = "clip"
513
519
        for textwidget in self.log:
514
520
            textwidget.set_wrap_mode(self.log_wrap)
515
 
        #self.log_message(u"Wrap mode: " + self.log_wrap)
 
521
        #self.log_message("Wrap mode: " + self.log_wrap)
516
522
    
517
523
    def find_and_remove_client(self, path, name):
518
 
        """Find an client from its object path and remove it.
 
524
        """Find a client by its object path and remove it.
519
525
        
520
526
        This is connected to the ClientRemoved signal from the
521
527
        Mandos server object."""
523
529
            client = self.clients_dict[path]
524
530
        except KeyError:
525
531
            # not found?
 
532
            self.log_message("Unknown client {0!r} ({1!r}) removed"
 
533
                             .format(name, path))
526
534
            return
527
 
        self.remove_client(client, path)
 
535
        client.delete()
528
536
    
529
537
    def add_new_client(self, path):
530
538
        client_proxy_object = self.bus.get_object(self.busname, path)
545
553
        if path is None:
546
554
            path = client.proxy.object_path
547
555
        self.clients_dict[path] = client
548
 
        self.clients.sort(None, lambda c: c.properties[u"Name"])
 
556
        self.clients.sort(key=lambda c: c.properties["Name"])
549
557
        self.refresh()
550
558
    
551
559
    def remove_client(self, client, path=None):
553
561
        if path is None:
554
562
            path = client.proxy.object_path
555
563
        del self.clients_dict[path]
556
 
        if not self.clients_dict:
557
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
558
 
            # is completely emptied, we need to recreate it.
559
 
            self.clients = urwid.SimpleListWalker([])
560
 
            self.rebuild()
561
564
        self.refresh()
562
565
    
563
566
    def refresh(self):
567
570
    
568
571
    def run(self):
569
572
        """Start the main loop and exit when it's done."""
 
573
        self.bus = dbus.SystemBus()
 
574
        mandos_dbus_objc = self.bus.get_object(
 
575
            self.busname, "/", follow_name_owner_changes=True)
 
576
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
577
                                          dbus_interface
 
578
                                          = server_interface)
 
579
        try:
 
580
            mandos_clients = (self.mandos_serv
 
581
                              .GetAllClientsWithProperties())
 
582
            if not mandos_clients:
 
583
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
584
        except dbus.exceptions.DBusException:
 
585
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
586
            mandos_clients = dbus.Dictionary()
 
587
        
 
588
        (self.mandos_serv
 
589
         .connect_to_signal("ClientRemoved",
 
590
                            self.find_and_remove_client,
 
591
                            dbus_interface=server_interface,
 
592
                            byte_arrays=True))
 
593
        (self.mandos_serv
 
594
         .connect_to_signal("ClientAdded",
 
595
                            self.add_new_client,
 
596
                            dbus_interface=server_interface,
 
597
                            byte_arrays=True))
 
598
        (self.mandos_serv
 
599
         .connect_to_signal("ClientNotFound",
 
600
                            self.client_not_found,
 
601
                            dbus_interface=server_interface,
 
602
                            byte_arrays=True))
 
603
        for path, client in mandos_clients.items():
 
604
            client_proxy_object = self.bus.get_object(self.busname,
 
605
                                                      path)
 
606
            self.add_client(MandosClientWidget(server_proxy_object
 
607
                                               =self.mandos_serv,
 
608
                                               proxy_object
 
609
                                               =client_proxy_object,
 
610
                                               properties=client,
 
611
                                               update_hook
 
612
                                               =self.refresh,
 
613
                                               delete_hook
 
614
                                               =self.remove_client,
 
615
                                               logger
 
616
                                               =self.log_message),
 
617
                            path=path)
 
618
        
570
619
        self.refresh()
571
620
        self._input_callback_tag = (gobject.io_add_watch
572
621
                                    (sys.stdin.fileno(),
582
631
    
583
632
    def process_input(self, source, condition):
584
633
        keys = self.screen.get_input()
585
 
        translations = { u"ctrl n": u"down",      # Emacs
586
 
                         u"ctrl p": u"up",        # Emacs
587
 
                         u"ctrl v": u"page down", # Emacs
588
 
                         u"meta v": u"page up",   # Emacs
589
 
                         u" ": u"page down",      # less
590
 
                         u"f": u"page down",      # less
591
 
                         u"b": u"page up",        # less
592
 
                         u"j": u"down",           # vi
593
 
                         u"k": u"up",             # vi
 
634
        translations = { "ctrl n": "down",      # Emacs
 
635
                         "ctrl p": "up",        # Emacs
 
636
                         "ctrl v": "page down", # Emacs
 
637
                         "meta v": "page up",   # Emacs
 
638
                         " ": "page down",      # less
 
639
                         "f": "page down",      # less
 
640
                         "b": "page up",        # less
 
641
                         "j": "down",           # vi
 
642
                         "k": "up",             # vi
594
643
                         }
595
644
        for key in keys:
596
645
            try:
598
647
            except KeyError:    # :-)
599
648
                pass
600
649
            
601
 
            if key == u"q" or key == u"Q":
 
650
            if key == "q" or key == "Q":
602
651
                self.stop()
603
652
                break
604
 
            elif key == u"window resize":
 
653
            elif key == "window resize":
605
654
                self.size = self.screen.get_cols_rows()
606
655
                self.refresh()
607
 
            elif key == u"\f":  # Ctrl-L
 
656
            elif key == "\f":  # Ctrl-L
608
657
                self.refresh()
609
 
            elif key == u"l" or key == u"D":
 
658
            elif key == "l" or key == "D":
610
659
                self.toggle_log_display()
611
660
                self.refresh()
612
 
            elif key == u"w" or key == u"i":
 
661
            elif key == "w" or key == "i":
613
662
                self.change_log_display()
614
663
                self.refresh()
615
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
664
            elif key == "?" or key == "f1" or key == "esc":
616
665
                if not self.log_visible:
617
666
                    self.log_visible = True
618
667
                    self.rebuild()
619
 
                self.log_message_raw((u"bold",
620
 
                                      u"  ".
621
 
                                      join((u"q: Quit",
622
 
                                            u"?: Help",
623
 
                                            u"l: Log window toggle",
624
 
                                            u"TAB: Switch window",
625
 
                                            u"w: Wrap (log)"))))
626
 
                self.log_message_raw((u"bold",
627
 
                                      u"  "
628
 
                                      .join((u"Clients:",
629
 
                                             u"+: Enable",
630
 
                                             u"-: Disable",
631
 
                                             u"r: Remove",
632
 
                                             u"s: Start new checker",
633
 
                                             u"S: Stop checker",
634
 
                                             u"C: Checker OK",
635
 
                                             u"a: Approve",
636
 
                                             u"d: Deny"))))
 
668
                self.log_message_raw(("bold",
 
669
                                      "  ".
 
670
                                      join(("q: Quit",
 
671
                                            "?: Help",
 
672
                                            "l: Log window toggle",
 
673
                                            "TAB: Switch window",
 
674
                                            "w: Wrap (log)"))))
 
675
                self.log_message_raw(("bold",
 
676
                                      "  "
 
677
                                      .join(("Clients:",
 
678
                                             "+: Enable",
 
679
                                             "-: Disable",
 
680
                                             "R: Remove",
 
681
                                             "s: Start new checker",
 
682
                                             "S: Stop checker",
 
683
                                             "C: Checker OK",
 
684
                                             "a: Approve",
 
685
                                             "d: Deny"))))
637
686
                self.refresh()
638
 
            elif key == u"tab":
 
687
            elif key == "tab":
639
688
                if self.topwidget.get_focus() is self.logbox:
640
689
                    self.topwidget.set_focus(0)
641
690
                else:
642
691
                    self.topwidget.set_focus(self.logbox)
643
692
                self.refresh()
644
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
645
 
            #      or key == u">"):
 
693
            #elif (key == "end" or key == "meta >" or key == "G"
 
694
            #      or key == ">"):
646
695
            #    pass            # xxx end-of-buffer
647
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
648
 
            #      or key == u"<"):
 
696
            #elif (key == "home" or key == "meta <" or key == "g"
 
697
            #      or key == "<"):
649
698
            #    pass            # xxx beginning-of-buffer
650
 
            #elif key == u"ctrl e" or key == u"$":
 
699
            #elif key == "ctrl e" or key == "$":
651
700
            #    pass            # xxx move-end-of-line
652
 
            #elif key == u"ctrl a" or key == u"^":
 
701
            #elif key == "ctrl a" or key == "^":
653
702
            #    pass            # xxx move-beginning-of-line
654
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
703
            #elif key == "ctrl b" or key == "meta (" or key == "h":
655
704
            #    pass            # xxx left
656
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
705
            #elif key == "ctrl f" or key == "meta )" or key == "l":
657
706
            #    pass            # xxx right
658
 
            #elif key == u"a":
 
707
            #elif key == "a":
659
708
            #    pass            # scroll up log
660
 
            #elif key == u"z":
 
709
            #elif key == "z":
661
710
            #    pass            # scroll down log
662
711
            elif self.topwidget.selectable():
663
712
                self.topwidget.keypress(self.size, key)
669
718
    ui.run()
670
719
except KeyboardInterrupt:
671
720
    ui.screen.stop()
672
 
except Exception, e:
673
 
    ui.log_message(unicode(e))
 
721
except Exception as e:
 
722
    ui.log_message(str(e))
674
723
    ui.screen.stop()
675
724
    raise