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  • Committer: Teddy Hogeborn
  • Date: 2010-09-26 17:36:30 UTC
  • Revision ID: teddy@fukt.bsnet.se-20100926173630-zk7pe17fp2bv6zr7
* DBUS-API: Document new "LastApprovalRequest" client property.

* mandos (Client.last_approval_request): New attribute.
  (Client.need_approval): New method.
  (ClientDBus.need_approval): - '' -
  (ClientDBus.NeedApproval): Call self.need_approval().
  (ClientDBus.LastApprovalRequest_dbus_property): New D-Bus property.

* mandos-monitor: Show timeout counter during approval delay.
  (MandosClientWidget._update_timer_callback_lock): New.
  (MandosClientWidget.property_changed): Override to also call
                                         using_timer if
                                         ApprovalPending property is
                                         changed.
  (MandosClientWidget.using_timer): New method.
  (MandosClientWidget.checker_completed): Use "using_timer".
  (MandosClientWidget.need_approval): - '' -
  (MandosClientWidget.update): Show approval delay timer.

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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 © 2009-2019 Teddy Hogeborn
7
 
# Copyright © 2009-2019 Björn Påhlsson
8
 
#
9
 
# This file is part of Mandos.
10
 
#
11
 
# Mandos is free software: you can redistribute it and/or modify it
12
 
# under the terms of the GNU General Public License as published by
13
 
# the Free Software Foundation, either version 3 of the License, or
14
 
# (at your option) any later version.
15
 
#
16
 
#     Mandos is distributed in the hope that it will be useful, but
17
 
#     WITHOUT ANY WARRANTY; without even the implied warranty of
18
 
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19
 
#     GNU General Public License for more details.
20
 
#
21
 
# You should have received a copy of the GNU General Public License
22
 
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
23
 
#
24
 
# Contact the authors at <mandos@recompile.se>.
25
 
#
26
3
 
27
 
from __future__ import (division, absolute_import, print_function,
28
 
                        unicode_literals)
29
 
try:
30
 
    from future_builtins import *
31
 
except ImportError:
32
 
    pass
 
4
from __future__ import division, absolute_import, with_statement
33
5
 
34
6
import sys
35
7
import os
 
8
import signal
36
9
 
37
10
import datetime
38
11
 
40
13
import urwid
41
14
 
42
15
from dbus.mainloop.glib import DBusGMainLoop
43
 
from gi.repository import GLib
 
16
import gobject
44
17
 
45
18
import dbus
46
19
 
 
20
import UserList
 
21
 
47
22
import locale
48
23
 
 
24
locale.setlocale(locale.LC_ALL, u'')
 
25
 
49
26
import logging
50
 
 
51
 
if sys.version_info.major == 2:
52
 
    str = unicode
53
 
 
54
 
locale.setlocale(locale.LC_ALL, '')
55
 
 
56
27
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
57
28
 
58
29
# Some useful constants
59
 
domain = 'se.recompile'
 
30
domain = 'se.bsnet.fukt'
60
31
server_interface = domain + '.Mandos'
61
32
client_interface = domain + '.Mandos.Client'
62
 
version = "1.8.4"
63
 
 
64
 
try:
65
 
    dbus.OBJECT_MANAGER_IFACE
66
 
except AttributeError:
67
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
68
 
 
 
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)
69
42
 
70
43
def isoformat_to_datetime(iso):
71
44
    "Parse an ISO 8601 date string to a datetime.datetime()"
72
45
    if not iso:
73
46
        return None
74
 
    d, t = iso.split("T", 1)
75
 
    year, month, day = d.split("-", 2)
76
 
    hour, minute, second = t.split(":", 2)
 
47
    d, t = iso.split(u"T", 1)
 
48
    year, month, day = d.split(u"-", 2)
 
49
    hour, minute, second = t.split(u":", 2)
77
50
    second, fraction = divmod(float(second), 1)
78
51
    return datetime.datetime(int(year),
79
52
                             int(month),
80
53
                             int(day),
81
54
                             int(hour),
82
55
                             int(minute),
83
 
                             int(second),            # Whole seconds
84
 
                             int(fraction*1000000))  # Microseconds
85
 
 
 
56
                             int(second),           # Whole seconds
 
57
                             int(fraction*1000000)) # Microseconds
86
58
 
87
59
class MandosClientPropertyCache(object):
88
60
    """This wraps a Mandos Client D-Bus proxy object, caches the
89
61
    properties and calls a hook function when any of them are
90
62
    changed.
91
63
    """
92
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
93
 
        self.proxy = proxy_object  # Mandos Client proxy object
94
 
        self.properties = dict() if properties is None else properties
95
 
        self.property_changed_match = (
96
 
            self.proxy.connect_to_signal("PropertiesChanged",
97
 
                                         self.properties_changed,
98
 
                                         dbus.PROPERTIES_IFACE,
99
 
                                         byte_arrays=True))
100
 
 
101
 
        if properties is None:
102
 
            self.properties.update(self.proxy.GetAll(
103
 
                client_interface,
104
 
                dbus_interface=dbus.PROPERTIES_IFACE))
105
 
 
106
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
107
 
 
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.
 
64
    def __init__(self, proxy_object=None, *args, **kwargs):
 
65
        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)
 
80
    
 
81
    def property_changed(self, property=None, value=None):
 
82
        """This is called whenever we get a PropertyChanged signal
 
83
        It updates the changed property in the "properties" dict.
111
84
        """
112
85
        # 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()
 
86
        self.properties[property] = value
118
87
 
119
88
 
120
89
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
121
90
    """A Mandos Client which is visible on the screen.
122
91
    """
123
 
 
 
92
    
124
93
    def __init__(self, server_proxy_object=None, update_hook=None,
125
 
                 delete_hook=None, logger=None, **kwargs):
 
94
                 delete_hook=None, logger=None, *args, **kwargs):
126
95
        # Called on update
127
96
        self.update_hook = update_hook
128
97
        # Called on delete
131
100
        self.server_proxy_object = server_proxy_object
132
101
        # Logger
133
102
        self.logger = logger
134
 
 
 
103
        
135
104
        self._update_timer_callback_tag = None
136
 
 
 
105
        self._update_timer_callback_lock = 0
 
106
        self.last_checker_failed = False
 
107
        
137
108
        # The widget shown normally
138
 
        self._text_widget = urwid.Text("")
 
109
        self._text_widget = urwid.Text(u"")
139
110
        # The widget shown when we have focus
140
 
        self._focus_text_widget = urwid.Text("")
141
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
111
        self._focus_text_widget = urwid.Text(u"")
 
112
        super(MandosClientWidget, self).__init__(
 
113
            update_hook=update_hook, delete_hook=delete_hook,
 
114
            *args, **kwargs)
142
115
        self.update()
143
116
        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
 
 
 
117
        
 
118
        last_checked_ok = isoformat_to_datetime(self.properties
 
119
                                                [u"LastCheckedOK"])
 
120
        if last_checked_ok is None:
 
121
            self.last_checker_failed = True
 
122
        else:
 
123
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
124
                                         - last_checked_ok)
 
125
                                        > datetime.timedelta
 
126
                                        (milliseconds=
 
127
                                         self.properties
 
128
                                         [u"Interval"]))
 
129
        
 
130
        if self.last_checker_failed:
 
131
            self.using_timer(True)
 
132
        
 
133
        if self.need_approval:
 
134
            self.using_timer(True)
 
135
        
 
136
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
137
                                     self.checker_completed,
 
138
                                     client_interface,
 
139
                                     byte_arrays=True)
 
140
        self.proxy.connect_to_signal(u"CheckerStarted",
 
141
                                     self.checker_started,
 
142
                                     client_interface,
 
143
                                     byte_arrays=True)
 
144
        self.proxy.connect_to_signal(u"GotSecret",
 
145
                                     self.got_secret,
 
146
                                     client_interface,
 
147
                                     byte_arrays=True)
 
148
        self.proxy.connect_to_signal(u"NeedApproval",
 
149
                                     self.need_approval,
 
150
                                     client_interface,
 
151
                                     byte_arrays=True)
 
152
        self.proxy.connect_to_signal(u"Rejected",
 
153
                                     self.rejected,
 
154
                                     client_interface,
 
155
                                     byte_arrays=True)
 
156
    
 
157
    def property_changed(self, property=None, value=None):
 
158
        super(self, MandosClientWidget).property_changed(property,
 
159
                                                         value)
 
160
        if property == u"ApprovalPending":
 
161
            using_timer(bool(value))
 
162
        
169
163
    def using_timer(self, flag):
170
164
        """Call this method with True or False when timer should be
171
165
        activated or deactivated.
172
166
        """
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 = (GLib.timeout_add
 
167
        old = self._update_timer_callback_lock
 
168
        if flag:
 
169
            self._update_timer_callback_lock += 1
 
170
        else:
 
171
            self._update_timer_callback_lock -= 1
 
172
        if old == 0 and self._update_timer_callback_lock:
 
173
            self._update_timer_callback_tag = (gobject.timeout_add
176
174
                                               (1000,
177
175
                                                self.update_timer))
178
 
        elif not (flag or self._update_timer_callback_tag is None):
179
 
            GLib.source_remove(self._update_timer_callback_tag)
 
176
        elif old and self._update_timer_callback_lock == 0:
 
177
            gobject.source_remove(self._update_timer_callback_tag)
180
178
            self._update_timer_callback_tag = None
181
 
 
 
179
    
182
180
    def checker_completed(self, exitstatus, condition, command):
183
181
        if exitstatus == 0:
184
 
            self.logger('Checker for client {} (command "{}")'
185
 
                        ' succeeded'.format(self.properties["Name"],
186
 
                                            command), level=0)
 
182
            if self.last_checker_failed:
 
183
                self.last_checker_failed = False
 
184
                self.using_timer(False)
 
185
            #self.logger(u'Checker for client %s (command "%s")'
 
186
            #            u' was successful'
 
187
            #            % (self.properties[u"Name"], command))
187
188
            self.update()
188
189
            return
189
190
        # Checker failed
 
191
        if not self.last_checker_failed:
 
192
            self.last_checker_failed = True
 
193
            self.using_timer(True)
190
194
        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
            self.logger(u'Checker for client %s (command "%s")'
 
196
                        u' failed with exit code %s'
 
197
                        % (self.properties[u"Name"], command,
 
198
                           os.WEXITSTATUS(condition)))
195
199
        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.logger(u'Checker for client %s (command "%s")'
 
201
                        u' was killed by signal %s'
 
202
                        % (self.properties[u"Name"], command,
 
203
                           os.WTERMSIG(condition)))
 
204
        elif os.WCOREDUMP(condition):
 
205
            self.logger(u'Checker for client %s (command "%s")'
 
206
                        u' dumped core'
 
207
                        % (self.properties[u"Name"], command))
 
208
        else:
 
209
            self.logger(u'Checker for client %s completed'
 
210
                        u' mysteriously')
200
211
        self.update()
201
 
 
 
212
    
202
213
    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)
207
 
 
 
214
        #self.logger(u'Client %s started checker "%s"'
 
215
        #            % (self.properties[u"Name"], unicode(command)))
 
216
        pass
 
217
    
208
218
    def got_secret(self):
209
 
        self.logger('Client {} received its secret'
210
 
                    .format(self.properties["Name"]))
211
 
 
 
219
        self.last_checker_failed = False
 
220
        self.logger(u'Client %s received its secret'
 
221
                    % self.properties[u"Name"])
 
222
    
212
223
    def need_approval(self, timeout, default):
213
224
        if not default:
214
 
            message = 'Client {} needs approval within {} seconds'
 
225
            message = u'Client %s needs approval within %s seconds'
215
226
        else:
216
 
            message = 'Client {} will get its secret in {} seconds'
217
 
        self.logger(message.format(self.properties["Name"],
218
 
                                   timeout/1000))
219
 
 
 
227
            message = u'Client %s will get its secret in %s seconds'
 
228
        self.logger(message
 
229
                    % (self.properties[u"Name"], timeout/1000))
 
230
        self.using_timer(True)
 
231
    
220
232
    def rejected(self, reason):
221
 
        self.logger('Client {} was rejected; reason: {}'
222
 
                    .format(self.properties["Name"], reason))
223
 
 
 
233
        self.logger(u'Client %s was rejected; reason: %s'
 
234
                    % (self.properties[u"Name"], reason))
 
235
    
224
236
    def selectable(self):
225
237
        """Make this a "selectable" widget.
226
238
        This overrides the method from urwid.FlowWidget."""
227
239
        return True
228
 
 
229
 
    def rows(self, maxcolrow, focus=False):
 
240
    
 
241
    def rows(self, (maxcol,), focus=False):
230
242
        """How many rows this widget will occupy might depend on
231
243
        whether we have focus or not.
232
244
        This overrides the method from urwid.FlowWidget"""
233
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
234
 
 
 
245
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
246
    
235
247
    def current_widget(self, focus=False):
236
248
        if focus or self.opened:
237
249
            return self._focus_widget
238
250
        return self._widget
239
 
 
 
251
    
240
252
    def update(self):
241
253
        "Called when what is visible on the screen should be updated."
242
254
        # 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",
249
 
                         }
 
255
        with_standout = { u"normal": u"standout",
 
256
                          u"bold": u"bold-standout",
 
257
                          u"underline-blink":
 
258
                              u"underline-blink-standout",
 
259
                          u"bold-underline-blink":
 
260
                              u"bold-underline-blink-standout",
 
261
                          }
250
262
 
251
263
        # Rebuild focus and non-focus widgets using current properties
252
264
 
253
265
        # 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(
260
 
                milliseconds=self.properties["ApprovalDelay"])
 
266
        base = (u'%(name)s: '
 
267
                      % {u"name": self.properties[u"Name"]})
 
268
        if not self.properties[u"Enabled"]:
 
269
            message = u"DISABLED"
 
270
        elif self.properties[u"ApprovalPending"]:
 
271
            timeout = datetime.timedelta(milliseconds
 
272
                                         = self.properties
 
273
                                         [u"ApprovalDelay"])
261
274
            last_approval_request = isoformat_to_datetime(
262
 
                self.properties["LastApprovalRequest"])
 
275
                self.properties[u"LastApprovalRequest"])
263
276
            if last_approval_request is not None:
264
 
                timer = max(timeout - (datetime.datetime.utcnow()
265
 
                                       - last_approval_request),
266
 
                            datetime.timedelta())
 
277
                timer = timeout - (datetime.datetime.utcnow()
 
278
                                   - last_approval_request)
267
279
            else:
268
280
                timer = datetime.timedelta()
269
 
            if self.properties["ApprovedByDefault"]:
270
 
                message = "Approval in {}. (d)eny?"
271
 
            else:
272
 
                message = "Denial in {}. (a)pprove?"
273
 
            message = message.format(str(timer).rsplit(".", 1)[0])
274
 
            self.using_timer(True)
275
 
        elif self.properties["LastCheckerStatus"] != 0:
276
 
            # When checker has failed, show timer until client expires
277
 
            expires = self.properties["Expires"]
278
 
            if expires == "":
279
 
                timer = datetime.timedelta(0)
280
 
            else:
281
 
                expires = (datetime.datetime.strptime
282
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
283
 
                timer = max(expires - datetime.datetime.utcnow(),
284
 
                            datetime.timedelta())
285
 
            message = ('A checker has failed! Time until client'
286
 
                       ' gets disabled: {}'
287
 
                       .format(str(timer).rsplit(".", 1)[0]))
288
 
            self.using_timer(True)
 
281
            if self.properties[u"ApprovedByDefault"]:
 
282
                message = u"Approval in %s. (d)eny?"
 
283
            else:
 
284
                message = u"Denial in %s. (a)pprove?"
 
285
            message = message % unicode(timer).rsplit(".", 1)[0]
 
286
        elif self.last_checker_failed:
 
287
            timeout = datetime.timedelta(milliseconds
 
288
                                         = self.properties
 
289
                                         [u"Timeout"])
 
290
            last_ok = isoformat_to_datetime(
 
291
                max((self.properties[u"LastCheckedOK"]
 
292
                     or self.properties[u"Created"]),
 
293
                    self.properties[u"LastEnabled"]))
 
294
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
295
            message = (u'A checker has failed! Time until client'
 
296
                       u' gets disabled: %s'
 
297
                           % unicode(timer).rsplit(".", 1)[0])
289
298
        else:
290
 
            message = "enabled"
291
 
            self.using_timer(False)
292
 
        self._text = "{}{}".format(base, message)
293
 
 
 
299
            message = u"enabled"
 
300
        self._text = "%s%s" % (base, message)
 
301
            
294
302
        if not urwid.supports_unicode():
295
303
            self._text = self._text.encode("ascii", "replace")
296
 
        textlist = [("normal", self._text)]
 
304
        textlist = [(u"normal", self._text)]
297
305
        self._text_widget.set_text(textlist)
298
306
        self._focus_text_widget.set_text([(with_standout[text[0]],
299
307
                                           text[1])
306
314
        # Run update hook, if any
307
315
        if self.update_hook is not None:
308
316
            self.update_hook()
309
 
 
 
317
    
310
318
    def update_timer(self):
311
 
        """called by GLib. Will indefinitely loop until
312
 
        GLib.source_remove() on tag is called
313
 
        """
 
319
        "called by gobject"
314
320
        self.update()
315
321
        return True             # Keep calling this
316
 
 
317
 
    def delete(self, **kwargs):
 
322
    
 
323
    def delete(self):
318
324
        if self._update_timer_callback_tag is not None:
319
 
            GLib.source_remove(self._update_timer_callback_tag)
 
325
            gobject.source_remove(self._update_timer_callback_tag)
320
326
            self._update_timer_callback_tag = None
321
 
        for match in self.match_objects:
322
 
            match.remove()
323
 
        self.match_objects = ()
324
327
        if self.delete_hook is not None:
325
328
            self.delete_hook(self)
326
 
        return super(MandosClientWidget, self).delete(**kwargs)
327
 
 
328
 
    def render(self, maxcolrow, focus=False):
 
329
    
 
330
    def render(self, (maxcol,), focus=False):
329
331
        """Render differently if we have focus.
330
332
        This overrides the method from urwid.FlowWidget"""
331
 
        return self.current_widget(focus).render(maxcolrow,
 
333
        return self.current_widget(focus).render((maxcol,),
332
334
                                                 focus=focus)
333
 
 
334
 
    def keypress(self, maxcolrow, key):
 
335
    
 
336
    def keypress(self, (maxcol,), key):
335
337
        """Handle keys.
336
338
        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":
 
339
        if key == u"+":
 
340
            self.proxy.Enable(dbus_interface = client_interface)
 
341
        elif key == u"-":
 
342
            self.proxy.Disable(dbus_interface = client_interface)
 
343
        elif key == u"a":
346
344
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
347
 
                               dbus_interface=client_interface,
348
 
                               ignore_reply=True)
349
 
        elif key == "d":
 
345
                               dbus_interface = client_interface)
 
346
        elif key == u"d":
350
347
            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":
 
348
                                  dbus_interface = client_interface)
 
349
        elif key == u"r" or key == u"_" or key == u"ctrl k":
354
350
            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)
 
351
                                                  .object_path)
 
352
        elif key == u"s":
 
353
            self.proxy.StartChecker(dbus_interface = client_interface)
 
354
        elif key == u"S":
 
355
            self.proxy.StopChecker(dbus_interface = client_interface)
 
356
        elif key == u"C":
 
357
            self.proxy.CheckedOK(dbus_interface = client_interface)
368
358
        # xxx
369
 
#         elif key == "p" or key == "=":
 
359
#         elif key == u"p" or key == "=":
370
360
#             self.proxy.pause()
371
 
#         elif key == "u" or key == ":":
 
361
#         elif key == u"u" or key == ":":
372
362
#             self.proxy.unpause()
373
 
#         elif key == "RET":
 
363
#         elif key == u"RET":
374
364
#             self.open()
375
365
        else:
376
366
            return key
377
 
 
378
 
    def properties_changed(self, interface, properties, invalidated):
379
 
        """Call self.update() if any properties changed.
 
367
    
 
368
    def property_changed(self, property=None, value=None,
 
369
                         *args, **kwargs):
 
370
        """Call self.update() if old value is not new value.
380
371
        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):
 
372
        property_name = unicode(property)
 
373
        old_value = self.properties.get(property_name)
 
374
        super(MandosClientWidget, self).property_changed(
 
375
            property=property, value=value, *args, **kwargs)
 
376
        if self.properties.get(property_name) != old_value:
387
377
            self.update()
388
378
 
389
379
 
392
382
    "down" key presses, thus not allowing any containing widgets to
393
383
    use them as an excuse to shift focus away from this widget.
394
384
    """
395
 
    def keypress(self, *args, **kwargs):
396
 
        ret = (super(ConstrainedListBox, self)
397
 
               .keypress(*args, **kwargs))
398
 
        if ret in ("up", "down"):
 
385
    def keypress(self, (maxcol, maxrow), key):
 
386
        ret = super(ConstrainedListBox, self).keypress((maxcol,
 
387
                                                        maxrow), key)
 
388
        if ret in (u"up", u"down"):
399
389
            return
400
390
        return ret
401
391
 
404
394
    """This is the entire user interface - the whole screen
405
395
    with boxes, lists of client widgets, etc.
406
396
    """
407
 
    def __init__(self, max_log_length=1000, log_level=1):
 
397
    def __init__(self, max_log_length=1000):
408
398
        DBusGMainLoop(set_as_default=True)
409
 
 
 
399
        
410
400
        self.screen = urwid.curses_display.Screen()
411
 
 
 
401
        
412
402
        self.screen.register_palette((
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",
423
 
                 "bold,underline,blink"),
424
 
                ("bold-standout",
425
 
                 "bold,standout", "default", "bold,standout"),
426
 
                ("underline-blink-standout",
427
 
                 "underline,blink,standout", "default",
428
 
                 "underline,blink,standout"),
429
 
                ("bold-underline-blink-standout",
430
 
                 "bold,underline,blink,standout", "default",
431
 
                 "bold,underline,blink,standout"),
 
403
                (u"normal",
 
404
                 u"default", u"default", None),
 
405
                (u"bold",
 
406
                 u"default", u"default", u"bold"),
 
407
                (u"underline-blink",
 
408
                 u"default", u"default", u"underline"),
 
409
                (u"standout",
 
410
                 u"default", u"default", u"standout"),
 
411
                (u"bold-underline-blink",
 
412
                 u"default", u"default", (u"bold", u"underline")),
 
413
                (u"bold-standout",
 
414
                 u"default", u"default", (u"bold", u"standout")),
 
415
                (u"underline-blink-standout",
 
416
                 u"default", u"default", (u"underline", u"standout")),
 
417
                (u"bold-underline-blink-standout",
 
418
                 u"default", u"default", (u"bold", u"underline",
 
419
                                          u"standout")),
432
420
                ))
433
 
 
 
421
        
434
422
        if urwid.supports_unicode():
435
 
            self.divider = "─"  # \u2500
 
423
            self.divider = u"─" # \u2500
 
424
            #self.divider = u"━" # \u2501
436
425
        else:
437
 
            self.divider = "_"  # \u005f
438
 
 
 
426
            #self.divider = u"-" # \u002d
 
427
            self.divider = u"_" # \u005f
 
428
        
439
429
        self.screen.start()
440
 
 
 
430
        
441
431
        self.size = self.screen.get_cols_rows()
442
 
 
 
432
        
443
433
        self.clients = urwid.SimpleListWalker([])
444
434
        self.clients_dict = {}
445
 
 
 
435
        
446
436
        # We will add Text widgets to this list
447
 
        self.log = urwid.SimpleListWalker([])
 
437
        self.log = []
448
438
        self.max_log_length = max_log_length
449
 
 
450
 
        self.log_level = log_level
451
 
 
 
439
        
452
440
        # We keep a reference to the log widget so we can remove it
453
441
        # from the ListWalker without it getting destroyed
454
442
        self.logbox = ConstrainedListBox(self.log)
455
 
 
 
443
        
456
444
        # This keeps track of whether self.uilist currently has
457
445
        # self.logbox in it or not
458
446
        self.log_visible = True
459
 
        self.log_wrap = "any"
460
 
 
 
447
        self.log_wrap = u"any"
 
448
        
461
449
        self.rebuild()
462
 
        self.log_message_raw(("bold",
463
 
                              "Mandos Monitor version " + version))
464
 
        self.log_message_raw(("bold",
465
 
                              "q: Quit  ?: Help"))
466
 
 
 
450
        self.log_message_raw((u"bold",
 
451
                              u"Mandos Monitor version " + version))
 
452
        self.log_message_raw((u"bold",
 
453
                              u"q: Quit  ?: Help"))
 
454
        
467
455
        self.busname = domain + '.Mandos'
468
 
        self.main_loop = GLib.MainLoop()
469
 
 
 
456
        self.main_loop = gobject.MainLoop()
 
457
        self.bus = dbus.SystemBus()
 
458
        mandos_dbus_objc = self.bus.get_object(
 
459
            self.busname, u"/", follow_name_owner_changes=True)
 
460
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
461
                                          dbus_interface
 
462
                                          = server_interface)
 
463
        try:
 
464
            mandos_clients = (self.mandos_serv
 
465
                              .GetAllClientsWithProperties())
 
466
        except dbus.exceptions.DBusException:
 
467
            mandos_clients = dbus.Dictionary()
 
468
        
 
469
        (self.mandos_serv
 
470
         .connect_to_signal(u"ClientRemoved",
 
471
                            self.find_and_remove_client,
 
472
                            dbus_interface=server_interface,
 
473
                            byte_arrays=True))
 
474
        (self.mandos_serv
 
475
         .connect_to_signal(u"ClientAdded",
 
476
                            self.add_new_client,
 
477
                            dbus_interface=server_interface,
 
478
                            byte_arrays=True))
 
479
        (self.mandos_serv
 
480
         .connect_to_signal(u"ClientNotFound",
 
481
                            self.client_not_found,
 
482
                            dbus_interface=server_interface,
 
483
                            byte_arrays=True))
 
484
        for path, client in mandos_clients.iteritems():
 
485
            client_proxy_object = self.bus.get_object(self.busname,
 
486
                                                      path)
 
487
            self.add_client(MandosClientWidget(server_proxy_object
 
488
                                               =self.mandos_serv,
 
489
                                               proxy_object
 
490
                                               =client_proxy_object,
 
491
                                               properties=client,
 
492
                                               update_hook
 
493
                                               =self.refresh,
 
494
                                               delete_hook
 
495
                                               =self.remove_client,
 
496
                                               logger
 
497
                                               =self.log_message),
 
498
                            path=path)
 
499
    
470
500
    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))
474
 
 
 
501
        self.log_message((u"Client with address %s and fingerprint %s"
 
502
                          u" could not be found" % (address,
 
503
                                                    fingerprint)))
 
504
    
475
505
    def rebuild(self):
476
506
        """This rebuilds the User Interface.
477
507
        Call this when the widget layout needs to change"""
478
508
        self.uilist = []
479
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
509
        #self.uilist.append(urwid.ListBox(self.clients))
480
510
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
481
511
                                                          clients),
482
 
                                       # header=urwid.Divider(),
 
512
                                       #header=urwid.Divider(),
483
513
                                       header=None,
484
 
                                       footer=urwid.Divider(
485
 
                                           div_char=self.divider)))
 
514
                                       footer=
 
515
                                       urwid.Divider(div_char=
 
516
                                                     self.divider)))
486
517
        if self.log_visible:
487
518
            self.uilist.append(self.logbox)
 
519
            pass
488
520
        self.topwidget = urwid.Pile(self.uilist)
489
 
 
490
 
    def log_message(self, message, level=1):
491
 
        """Log message formatted with timestamp"""
492
 
        if level < self.log_level:
493
 
            return
 
521
    
 
522
    def log_message(self, message):
494
523
        timestamp = datetime.datetime.now().isoformat()
495
 
        self.log_message_raw("{}: {}".format(timestamp, message),
496
 
                             level=level)
497
 
 
498
 
    def log_message_raw(self, markup, level=1):
 
524
        self.log_message_raw(timestamp + u": " + message)
 
525
    
 
526
    def log_message_raw(self, markup):
499
527
        """Add a log message to the log buffer."""
500
 
        if level < self.log_level:
501
 
            return
502
528
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
503
 
        if self.max_log_length:
504
 
            if len(self.log) > self.max_log_length:
505
 
                del self.log[0:len(self.log)-self.max_log_length-1]
506
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
507
 
                              coming_from="above")
 
529
        if (self.max_log_length
 
530
            and len(self.log) > self.max_log_length):
 
531
            del self.log[0:len(self.log)-self.max_log_length-1]
 
532
        self.logbox.set_focus(len(self.logbox.body.contents),
 
533
                              coming_from=u"above")
508
534
        self.refresh()
509
 
 
 
535
    
510
536
    def toggle_log_display(self):
511
537
        """Toggle visibility of the log buffer."""
512
538
        self.log_visible = not self.log_visible
513
539
        self.rebuild()
514
 
        self.log_message("Log visibility changed to: {}"
515
 
                         .format(self.log_visible), level=0)
516
 
 
 
540
        #self.log_message(u"Log visibility changed to: "
 
541
        #                 + unicode(self.log_visible))
 
542
    
517
543
    def change_log_display(self):
518
544
        """Change type of log display.
519
545
        Currently, this toggles wrapping of text lines."""
520
 
        if self.log_wrap == "clip":
521
 
            self.log_wrap = "any"
 
546
        if self.log_wrap == u"clip":
 
547
            self.log_wrap = u"any"
522
548
        else:
523
 
            self.log_wrap = "clip"
 
549
            self.log_wrap = u"clip"
524
550
        for textwidget in self.log:
525
551
            textwidget.set_wrap_mode(self.log_wrap)
526
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
527
 
                         level=0)
528
 
 
529
 
    def find_and_remove_client(self, path, interfaces):
530
 
        """Find a client by its object path and remove it.
531
 
 
532
 
        This is connected to the InterfacesRemoved signal from the
 
552
        #self.log_message(u"Wrap mode: " + self.log_wrap)
 
553
    
 
554
    def find_and_remove_client(self, path, name):
 
555
        """Find an client from its object path and remove it.
 
556
        
 
557
        This is connected to the ClientRemoved signal from the
533
558
        Mandos server object."""
534
 
        if client_interface not in interfaces:
535
 
            # Not a Mandos client object; ignore
536
 
            return
537
559
        try:
538
560
            client = self.clients_dict[path]
539
561
        except KeyError:
540
562
            # not found?
541
 
            self.log_message("Unknown client {!r} removed"
542
 
                             .format(path))
543
 
            return
544
 
        client.delete()
545
 
 
546
 
    def add_new_client(self, path, ifs_and_props):
547
 
        """Find a client by its object path and remove it.
548
 
 
549
 
        This is connected to the InterfacesAdded signal from the
550
 
        Mandos server object.
551
 
        """
552
 
        if client_interface not in ifs_and_props:
553
 
            # Not a Mandos client object; ignore
554
 
            return
 
563
            return
 
564
        self.remove_client(client, path)
 
565
    
 
566
    def add_new_client(self, path):
555
567
        client_proxy_object = self.bus.get_object(self.busname, path)
556
 
        self.add_client(MandosClientWidget(
557
 
            server_proxy_object=self.mandos_serv,
558
 
            proxy_object=client_proxy_object,
559
 
            update_hook=self.refresh,
560
 
            delete_hook=self.remove_client,
561
 
            logger=self.log_message,
562
 
            properties=dict(ifs_and_props[client_interface])),
 
568
        self.add_client(MandosClientWidget(server_proxy_object
 
569
                                           =self.mandos_serv,
 
570
                                           proxy_object
 
571
                                           =client_proxy_object,
 
572
                                           update_hook
 
573
                                           =self.refresh,
 
574
                                           delete_hook
 
575
                                           =self.remove_client,
 
576
                                           logger
 
577
                                           =self.log_message),
563
578
                        path=path)
564
 
 
 
579
    
565
580
    def add_client(self, client, path=None):
566
581
        self.clients.append(client)
567
582
        if path is None:
568
583
            path = client.proxy.object_path
569
584
        self.clients_dict[path] = client
570
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
585
        self.clients.sort(None, lambda c: c.properties[u"Name"])
571
586
        self.refresh()
572
 
 
 
587
    
573
588
    def remove_client(self, client, path=None):
574
589
        self.clients.remove(client)
575
590
        if path is None:
576
591
            path = client.proxy.object_path
577
592
        del self.clients_dict[path]
 
593
        if not self.clients_dict:
 
594
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
595
            # is completely emptied, we need to recreate it.
 
596
            self.clients = urwid.SimpleListWalker([])
 
597
            self.rebuild()
578
598
        self.refresh()
579
 
 
 
599
    
580
600
    def refresh(self):
581
601
        """Redraw the screen"""
582
602
        canvas = self.topwidget.render(self.size, focus=True)
583
603
        self.screen.draw_screen(self.size, canvas)
584
 
 
 
604
    
585
605
    def run(self):
586
606
        """Start the main loop and exit when it's done."""
587
 
        self.bus = dbus.SystemBus()
588
 
        mandos_dbus_objc = self.bus.get_object(
589
 
            self.busname, "/", follow_name_owner_changes=True)
590
 
        self.mandos_serv = dbus.Interface(
591
 
            mandos_dbus_objc, dbus_interface=server_interface)
592
 
        try:
593
 
            mandos_clients = (self.mandos_serv
594
 
                              .GetAllClientsWithProperties())
595
 
            if not mandos_clients:
596
 
                self.log_message_raw(("bold",
597
 
                                      "Note: Server has no clients."))
598
 
        except dbus.exceptions.DBusException:
599
 
            self.log_message_raw(("bold",
600
 
                                  "Note: No Mandos server running."))
601
 
            mandos_clients = dbus.Dictionary()
602
 
 
603
 
        (self.mandos_serv
604
 
         .connect_to_signal("InterfacesRemoved",
605
 
                            self.find_and_remove_client,
606
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
607
 
                            byte_arrays=True))
608
 
        (self.mandos_serv
609
 
         .connect_to_signal("InterfacesAdded",
610
 
                            self.add_new_client,
611
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
612
 
                            byte_arrays=True))
613
 
        (self.mandos_serv
614
 
         .connect_to_signal("ClientNotFound",
615
 
                            self.client_not_found,
616
 
                            dbus_interface=server_interface,
617
 
                            byte_arrays=True))
618
 
        for path, client in mandos_clients.items():
619
 
            client_proxy_object = self.bus.get_object(self.busname,
620
 
                                                      path)
621
 
            self.add_client(MandosClientWidget(
622
 
                server_proxy_object=self.mandos_serv,
623
 
                proxy_object=client_proxy_object,
624
 
                properties=client,
625
 
                update_hook=self.refresh,
626
 
                delete_hook=self.remove_client,
627
 
                logger=self.log_message),
628
 
                            path=path)
629
 
 
630
607
        self.refresh()
631
 
        self._input_callback_tag = (GLib.io_add_watch
 
608
        self._input_callback_tag = (gobject.io_add_watch
632
609
                                    (sys.stdin.fileno(),
633
 
                                     GLib.IO_IN,
 
610
                                     gobject.IO_IN,
634
611
                                     self.process_input))
635
612
        self.main_loop.run()
636
613
        # Main loop has finished, we should close everything now
637
 
        GLib.source_remove(self._input_callback_tag)
 
614
        gobject.source_remove(self._input_callback_tag)
638
615
        self.screen.stop()
639
 
 
 
616
    
640
617
    def stop(self):
641
618
        self.main_loop.quit()
642
 
 
 
619
    
643
620
    def process_input(self, source, condition):
644
621
        keys = self.screen.get_input()
645
 
        translations = {"ctrl n": "down",       # Emacs
646
 
                        "ctrl p": "up",         # Emacs
647
 
                        "ctrl v": "page down",  # Emacs
648
 
                        "meta v": "page up",    # Emacs
649
 
                        " ": "page down",       # less
650
 
                        "f": "page down",       # less
651
 
                        "b": "page up",         # less
652
 
                        "j": "down",            # vi
653
 
                        "k": "up",              # vi
654
 
                        }
 
622
        translations = { u"ctrl n": u"down",      # Emacs
 
623
                         u"ctrl p": u"up",        # Emacs
 
624
                         u"ctrl v": u"page down", # Emacs
 
625
                         u"meta v": u"page up",   # Emacs
 
626
                         u" ": u"page down",      # less
 
627
                         u"f": u"page down",      # less
 
628
                         u"b": u"page up",        # less
 
629
                         u"j": u"down",           # vi
 
630
                         u"k": u"up",             # vi
 
631
                         }
655
632
        for key in keys:
656
633
            try:
657
634
                key = translations[key]
658
635
            except KeyError:    # :-)
659
636
                pass
660
 
 
661
 
            if key == "q" or key == "Q":
 
637
            
 
638
            if key == u"q" or key == u"Q":
662
639
                self.stop()
663
640
                break
664
 
            elif key == "window resize":
 
641
            elif key == u"window resize":
665
642
                self.size = self.screen.get_cols_rows()
666
643
                self.refresh()
667
 
            elif key == "ctrl l":
668
 
                self.screen.clear()
 
644
            elif key == u"\f":  # Ctrl-L
669
645
                self.refresh()
670
 
            elif key == "l" or key == "D":
 
646
            elif key == u"l" or key == u"D":
671
647
                self.toggle_log_display()
672
648
                self.refresh()
673
 
            elif key == "w" or key == "i":
 
649
            elif key == u"w" or key == u"i":
674
650
                self.change_log_display()
675
651
                self.refresh()
676
 
            elif key == "?" or key == "f1" or key == "esc":
 
652
            elif key == u"?" or key == u"f1" or key == u"esc":
677
653
                if not self.log_visible:
678
654
                    self.log_visible = True
679
655
                    self.rebuild()
680
 
                self.log_message_raw(("bold",
681
 
                                      "  ".
682
 
                                      join(("q: Quit",
683
 
                                            "?: Help",
684
 
                                            "l: Log window toggle",
685
 
                                            "TAB: Switch window",
686
 
                                            "w: Wrap (log lines)",
687
 
                                            "v: Toggle verbose log",
688
 
                                            ))))
689
 
                self.log_message_raw(("bold",
690
 
                                      "  "
691
 
                                      .join(("Clients:",
692
 
                                             "+: Enable",
693
 
                                             "-: Disable",
694
 
                                             "R: Remove",
695
 
                                             "s: Start new checker",
696
 
                                             "S: Stop checker",
697
 
                                             "C: Checker OK",
698
 
                                             "a: Approve",
699
 
                                             "d: Deny"))))
 
656
                self.log_message_raw((u"bold",
 
657
                                      u"  ".
 
658
                                      join((u"q: Quit",
 
659
                                            u"?: Help",
 
660
                                            u"l: Log window toggle",
 
661
                                            u"TAB: Switch window",
 
662
                                            u"w: Wrap (log)"))))
 
663
                self.log_message_raw((u"bold",
 
664
                                      u"  "
 
665
                                      .join((u"Clients:",
 
666
                                             u"+: Enable",
 
667
                                             u"-: Disable",
 
668
                                             u"r: Remove",
 
669
                                             u"s: Start new checker",
 
670
                                             u"S: Stop checker",
 
671
                                             u"C: Checker OK",
 
672
                                             u"a: Approve",
 
673
                                             u"d: Deny"))))
700
674
                self.refresh()
701
 
            elif key == "tab":
 
675
            elif key == u"tab":
702
676
                if self.topwidget.get_focus() is self.logbox:
703
677
                    self.topwidget.set_focus(0)
704
678
                else:
705
679
                    self.topwidget.set_focus(self.logbox)
706
680
                self.refresh()
707
 
            elif key == "v":
708
 
                if self.log_level == 0:
709
 
                    self.log_level = 1
710
 
                    self.log_message("Verbose mode: Off")
711
 
                else:
712
 
                    self.log_level = 0
713
 
                    self.log_message("Verbose mode: On")
714
 
            # elif (key == "end" or key == "meta >" or key == "G"
715
 
            #       or key == ">"):
716
 
            #     pass            # xxx end-of-buffer
717
 
            # elif (key == "home" or key == "meta <" or key == "g"
718
 
            #       or key == "<"):
719
 
            #     pass            # xxx beginning-of-buffer
720
 
            # elif key == "ctrl e" or key == "$":
721
 
            #     pass            # xxx move-end-of-line
722
 
            # elif key == "ctrl a" or key == "^":
723
 
            #     pass            # xxx move-beginning-of-line
724
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
725
 
            #     pass            # xxx left
726
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
727
 
            #     pass            # xxx right
728
 
            # elif key == "a":
729
 
            #     pass            # scroll up log
730
 
            # elif key == "z":
731
 
            #     pass            # scroll down log
 
681
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
682
            #      or key == u">"):
 
683
            #    pass            # xxx end-of-buffer
 
684
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
685
            #      or key == u"<"):
 
686
            #    pass            # xxx beginning-of-buffer
 
687
            #elif key == u"ctrl e" or key == u"$":
 
688
            #    pass            # xxx move-end-of-line
 
689
            #elif key == u"ctrl a" or key == u"^":
 
690
            #    pass            # xxx move-beginning-of-line
 
691
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
692
            #    pass            # xxx left
 
693
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
694
            #    pass            # xxx right
 
695
            #elif key == u"a":
 
696
            #    pass            # scroll up log
 
697
            #elif key == u"z":
 
698
            #    pass            # scroll down log
732
699
            elif self.topwidget.selectable():
733
700
                self.topwidget.keypress(self.size, key)
734
701
                self.refresh()
735
702
        return True
736
703
 
737
 
 
738
704
ui = UserInterface()
739
705
try:
740
706
    ui.run()
741
707
except KeyboardInterrupt:
742
708
    ui.screen.stop()
743
 
except Exception as e:
744
 
    ui.log_message(str(e))
 
709
except Exception, e:
 
710
    ui.log_message(unicode(e))
745
711
    ui.screen.stop()
746
712
    raise