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  • Committer: Teddy Hogeborn
  • Date: 2018-08-19 01:35:11 UTC
  • Revision ID: teddy@recompile.se-20180819013511-cku25q9yeub3dnr0
Adapt to changes in cryptsetup; use "cryptroot-unlock" program

* Makefile (install-client-nokey): Also install new script files
  "mandos-to-cryptroot-unlock" and "initramfs-tools-script-stop".
* debian/mandos-client.dirs: Add
  "usr/share/initramfs-tools/scripts/local-premount".
* initramfs-tools-hook: Also copy "mandos-to-cryptroot-unlock".
* initramfs-tools-script: Only modify keyscript setting in cryptroot
  file if the file exists, otherwise start
  "mandos-to-cryptroot-unlock" in background.
* initramfs-tools-script-stop: New script to make sure plugin-runner
  has stopped before continuing.
* mandos-to-cryptroot-unlock: New script to run plugin-runner and feed
  any password it gets into the "cryptroot-unlock" program.

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Lines of Context:
mandos-monitor
1
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
# 
 
3
#
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
 
# 
6
 
# Copyright © 2009,2010 Teddy Hogeborn
7
 
# Copyright © 2009,2010 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
 
5
#
 
6
# Copyright © 2009-2018 Teddy Hogeborn
 
7
# Copyright © 2009-2018 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
11
13
# the Free Software Foundation, either version 3 of the License, or
12
14
# (at your option) any later version.
13
15
#
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
#     Mandos is distributed in the hope that it will be useful, but
 
17
#     WITHOUT ANY WARRANTY; without even the implied warranty of
16
18
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
19
#     GNU General Public License for more details.
18
 
# 
 
20
#
19
21
# You should have received a copy of the GNU General Public License
20
 
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
21
 
# 
22
 
# Contact the authors at <mandos@fukt.bsnet.se>.
23
 
# 
 
22
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
23
#
 
24
# Contact the authors at <mandos@recompile.se>.
 
25
#
24
26
 
25
 
from __future__ import division, absolute_import, with_statement
 
27
from __future__ import (division, absolute_import, print_function,
 
28
                        unicode_literals)
 
29
try:
 
30
    from future_builtins import *
 
31
except ImportError:
 
32
    pass
26
33
 
27
34
import sys
28
35
import os
29
 
import signal
30
36
 
31
37
import datetime
32
38
 
34
40
import urwid
35
41
 
36
42
from dbus.mainloop.glib import DBusGMainLoop
37
 
import gobject
 
43
from gi.repository import GLib
38
44
 
39
45
import dbus
40
46
 
41
 
import UserList
42
 
 
43
47
import locale
44
48
 
45
 
locale.setlocale(locale.LC_ALL, u'')
46
 
 
47
49
import logging
 
50
 
 
51
if sys.version_info.major == 2:
 
52
    str = unicode
 
53
 
 
54
locale.setlocale(locale.LC_ALL, '')
 
55
 
48
56
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
49
57
 
50
58
# Some useful constants
51
 
domain = 'se.bsnet.fukt'
 
59
domain = 'se.recompile'
52
60
server_interface = domain + '.Mandos'
53
61
client_interface = domain + '.Mandos.Client'
54
 
version = "1.2.1"
55
 
 
56
 
# Always run in monochrome mode
57
 
urwid.curses_display.curses.has_colors = lambda : False
58
 
 
59
 
# Urwid doesn't support blinking, but we want it.  Since we have no
60
 
# use for underline on its own, we make underline also always blink.
61
 
urwid.curses_display.curses.A_UNDERLINE |= (
62
 
    urwid.curses_display.curses.A_BLINK)
 
62
version = "1.7.19"
 
63
 
 
64
try:
 
65
    dbus.OBJECT_MANAGER_IFACE
 
66
except AttributeError:
 
67
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
68
 
63
69
 
64
70
def isoformat_to_datetime(iso):
65
71
    "Parse an ISO 8601 date string to a datetime.datetime()"
66
72
    if not iso:
67
73
        return None
68
 
    d, t = iso.split(u"T", 1)
69
 
    year, month, day = d.split(u"-", 2)
70
 
    hour, minute, second = t.split(u":", 2)
 
74
    d, t = iso.split("T", 1)
 
75
    year, month, day = d.split("-", 2)
 
76
    hour, minute, second = t.split(":", 2)
71
77
    second, fraction = divmod(float(second), 1)
72
78
    return datetime.datetime(int(year),
73
79
                             int(month),
74
80
                             int(day),
75
81
                             int(hour),
76
82
                             int(minute),
77
 
                             int(second),           # Whole seconds
78
 
                             int(fraction*1000000)) # Microseconds
 
83
                             int(second),            # Whole seconds
 
84
                             int(fraction*1000000))  # Microseconds
 
85
 
79
86
 
80
87
class MandosClientPropertyCache(object):
81
88
    """This wraps a Mandos Client D-Bus proxy object, caches the
82
89
    properties and calls a hook function when any of them are
83
90
    changed.
84
91
    """
85
 
    def __init__(self, proxy_object=None, *args, **kwargs):
86
 
        self.proxy = proxy_object # Mandos Client proxy object
87
 
        
88
 
        self.properties = dict()
89
 
        self.proxy.connect_to_signal(u"PropertyChanged",
90
 
                                     self.property_changed,
91
 
                                     client_interface,
92
 
                                     byte_arrays=True)
93
 
        
94
 
        self.properties.update(
95
 
            self.proxy.GetAll(client_interface,
96
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
97
 
 
98
 
        #XXX This break good super behaviour!
99
 
#        super(MandosClientPropertyCache, self).__init__(
100
 
#            *args, **kwargs)
101
 
    
102
 
    def property_changed(self, property=None, value=None):
103
 
        """This is called whenever we get a PropertyChanged signal
104
 
        It updates the changed property in the "properties" dict.
 
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.
105
111
        """
106
112
        # Update properties dict with new value
107
 
        self.properties[property] = value
 
113
        if interface == client_interface:
 
114
            self.properties.update(properties)
 
115
 
 
116
    def delete(self):
 
117
        self.property_changed_match.remove()
108
118
 
109
119
 
110
120
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
111
121
    """A Mandos Client which is visible on the screen.
112
122
    """
113
 
    
 
123
 
114
124
    def __init__(self, server_proxy_object=None, update_hook=None,
115
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
125
                 delete_hook=None, logger=None, **kwargs):
116
126
        # Called on update
117
127
        self.update_hook = update_hook
118
128
        # Called on delete
121
131
        self.server_proxy_object = server_proxy_object
122
132
        # Logger
123
133
        self.logger = logger
124
 
        
 
134
 
125
135
        self._update_timer_callback_tag = None
126
 
        self._update_timer_callback_lock = 0
127
 
        self.last_checker_failed = False
128
 
        
 
136
 
129
137
        # The widget shown normally
130
 
        self._text_widget = urwid.Text(u"")
 
138
        self._text_widget = urwid.Text("")
131
139
        # The widget shown when we have focus
132
 
        self._focus_text_widget = urwid.Text(u"")
133
 
        super(MandosClientWidget, self).__init__(
134
 
            update_hook=update_hook, delete_hook=delete_hook,
135
 
            *args, **kwargs)
 
140
        self._focus_text_widget = urwid.Text("")
 
141
        super(MandosClientWidget, self).__init__(**kwargs)
136
142
        self.update()
137
143
        self.opened = False
138
 
        
139
 
        last_checked_ok = isoformat_to_datetime(self.properties
140
 
                                                [u"LastCheckedOK"])
141
 
        if last_checked_ok is None:
142
 
            self.last_checker_failed = True
143
 
        else:
144
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
145
 
                                         - last_checked_ok)
146
 
                                        > datetime.timedelta
147
 
                                        (milliseconds=
148
 
                                         self.properties
149
 
                                         [u"Interval"]))
150
 
        
151
 
        if self.last_checker_failed:
152
 
            self.using_timer(True)
153
 
        
154
 
        if self.need_approval:
155
 
            self.using_timer(True)
156
 
        
157
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
158
 
                                     self.checker_completed,
159
 
                                     client_interface,
160
 
                                     byte_arrays=True)
161
 
        self.proxy.connect_to_signal(u"CheckerStarted",
162
 
                                     self.checker_started,
163
 
                                     client_interface,
164
 
                                     byte_arrays=True)
165
 
        self.proxy.connect_to_signal(u"GotSecret",
166
 
                                     self.got_secret,
167
 
                                     client_interface,
168
 
                                     byte_arrays=True)
169
 
        self.proxy.connect_to_signal(u"NeedApproval",
170
 
                                     self.need_approval,
171
 
                                     client_interface,
172
 
                                     byte_arrays=True)
173
 
        self.proxy.connect_to_signal(u"Rejected",
174
 
                                     self.rejected,
175
 
                                     client_interface,
176
 
                                     byte_arrays=True)
177
 
    
178
 
    def property_changed(self, property=None, value=None):
179
 
        super(self, MandosClientWidget).property_changed(property,
180
 
                                                         value)
181
 
        if property == u"ApprovalPending":
182
 
            using_timer(bool(value))
183
 
        
 
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
 
184
169
    def using_timer(self, flag):
185
170
        """Call this method with True or False when timer should be
186
171
        activated or deactivated.
187
172
        """
188
 
        old = self._update_timer_callback_lock
189
 
        if flag:
190
 
            self._update_timer_callback_lock += 1
191
 
        else:
192
 
            self._update_timer_callback_lock -= 1
193
 
        if old == 0 and self._update_timer_callback_lock:
194
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
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
195
176
                                               (1000,
196
177
                                                self.update_timer))
197
 
        elif old and self._update_timer_callback_lock == 0:
198
 
            gobject.source_remove(self._update_timer_callback_tag)
 
178
        elif not (flag or self._update_timer_callback_tag is None):
 
179
            GLib.source_remove(self._update_timer_callback_tag)
199
180
            self._update_timer_callback_tag = None
200
 
    
 
181
 
201
182
    def checker_completed(self, exitstatus, condition, command):
202
183
        if exitstatus == 0:
203
 
            if self.last_checker_failed:
204
 
                self.last_checker_failed = False
205
 
                self.using_timer(False)
206
 
            #self.logger(u'Checker for client %s (command "%s")'
207
 
            #            u' was successful'
208
 
            #            % (self.properties[u"Name"], command))
 
184
            self.logger('Checker for client {} (command "{}")'
 
185
                        ' succeeded'.format(self.properties["Name"],
 
186
                                            command), level=0)
209
187
            self.update()
210
188
            return
211
189
        # Checker failed
212
 
        if not self.last_checker_failed:
213
 
            self.last_checker_failed = True
214
 
            self.using_timer(True)
215
190
        if os.WIFEXITED(condition):
216
 
            self.logger(u'Checker for client %s (command "%s")'
217
 
                        u' failed with exit code %s'
218
 
                        % (self.properties[u"Name"], command,
219
 
                           os.WEXITSTATUS(condition)))
 
191
            self.logger('Checker for client {} (command "{}") failed'
 
192
                        ' with exit code {}'
 
193
                        .format(self.properties["Name"], command,
 
194
                                os.WEXITSTATUS(condition)))
220
195
        elif os.WIFSIGNALED(condition):
221
 
            self.logger(u'Checker for client %s (command "%s")'
222
 
                        u' was killed by signal %s'
223
 
                        % (self.properties[u"Name"], command,
224
 
                           os.WTERMSIG(condition)))
225
 
        elif os.WCOREDUMP(condition):
226
 
            self.logger(u'Checker for client %s (command "%s")'
227
 
                        u' dumped core'
228
 
                        % (self.properties[u"Name"], command))
229
 
        else:
230
 
            self.logger(u'Checker for client %s completed'
231
 
                        u' mysteriously')
 
196
            self.logger('Checker for client {} (command "{}") was'
 
197
                        ' killed by signal {}'
 
198
                        .format(self.properties["Name"], command,
 
199
                                os.WTERMSIG(condition)))
232
200
        self.update()
233
 
    
 
201
 
234
202
    def checker_started(self, command):
235
 
        #self.logger(u'Client %s started checker "%s"'
236
 
        #            % (self.properties[u"Name"], unicode(command)))
237
 
        pass
238
 
    
 
203
        """Server signals that a checker started."""
 
204
        self.logger('Client {} started checker "{}"'
 
205
                    .format(self.properties["Name"],
 
206
                            command), level=0)
 
207
 
239
208
    def got_secret(self):
240
 
        self.last_checker_failed = False
241
 
        self.logger(u'Client %s received its secret'
242
 
                    % self.properties[u"Name"])
243
 
    
 
209
        self.logger('Client {} received its secret'
 
210
                    .format(self.properties["Name"]))
 
211
 
244
212
    def need_approval(self, timeout, default):
245
213
        if not default:
246
 
            message = u'Client %s needs approval within %s seconds'
 
214
            message = 'Client {} needs approval within {} seconds'
247
215
        else:
248
 
            message = u'Client %s will get its secret in %s seconds'
249
 
        self.logger(message
250
 
                    % (self.properties[u"Name"], timeout/1000))
251
 
        self.using_timer(True)
252
 
    
 
216
            message = 'Client {} will get its secret in {} seconds'
 
217
        self.logger(message.format(self.properties["Name"],
 
218
                                   timeout/1000))
 
219
 
253
220
    def rejected(self, reason):
254
 
        self.logger(u'Client %s was rejected; reason: %s'
255
 
                    % (self.properties[u"Name"], reason))
256
 
    
 
221
        self.logger('Client {} was rejected; reason: {}'
 
222
                    .format(self.properties["Name"], reason))
 
223
 
257
224
    def selectable(self):
258
225
        """Make this a "selectable" widget.
259
226
        This overrides the method from urwid.FlowWidget."""
260
227
        return True
261
 
    
262
 
    def rows(self, (maxcol,), focus=False):
 
228
 
 
229
    def rows(self, maxcolrow, focus=False):
263
230
        """How many rows this widget will occupy might depend on
264
231
        whether we have focus or not.
265
232
        This overrides the method from urwid.FlowWidget"""
266
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
267
 
    
 
233
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
234
 
268
235
    def current_widget(self, focus=False):
269
236
        if focus or self.opened:
270
237
            return self._focus_widget
271
238
        return self._widget
272
 
    
 
239
 
273
240
    def update(self):
274
241
        "Called when what is visible on the screen should be updated."
275
242
        # How to add standout mode to a style
276
 
        with_standout = { u"normal": u"standout",
277
 
                          u"bold": u"bold-standout",
278
 
                          u"underline-blink":
279
 
                              u"underline-blink-standout",
280
 
                          u"bold-underline-blink":
281
 
                              u"bold-underline-blink-standout",
282
 
                          }
 
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
                         }
283
250
 
284
251
        # Rebuild focus and non-focus widgets using current properties
285
252
 
286
253
        # Base part of a client. Name!
287
 
        base = (u'%(name)s: '
288
 
                      % {u"name": self.properties[u"Name"]})
289
 
        if not self.properties[u"Enabled"]:
290
 
            message = u"DISABLED"
291
 
        elif self.properties[u"ApprovalPending"]:
292
 
            timeout = datetime.timedelta(milliseconds
293
 
                                         = self.properties
294
 
                                         [u"ApprovalDelay"])
 
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"])
295
261
            last_approval_request = isoformat_to_datetime(
296
 
                self.properties[u"LastApprovalRequest"])
 
262
                self.properties["LastApprovalRequest"])
297
263
            if last_approval_request is not None:
298
 
                timer = timeout - (datetime.datetime.utcnow()
299
 
                                   - last_approval_request)
 
264
                timer = max(timeout - (datetime.datetime.utcnow()
 
265
                                       - last_approval_request),
 
266
                            datetime.timedelta())
300
267
            else:
301
268
                timer = datetime.timedelta()
302
 
            if self.properties[u"ApprovedByDefault"]:
303
 
                message = u"Approval in %s. (d)eny?"
304
 
            else:
305
 
                message = u"Denial in %s. (a)pprove?"
306
 
            message = message % unicode(timer).rsplit(".", 1)[0]
307
 
        elif self.last_checker_failed:
308
 
            timeout = datetime.timedelta(milliseconds
309
 
                                         = self.properties
310
 
                                         [u"Timeout"])
311
 
            last_ok = isoformat_to_datetime(
312
 
                max((self.properties[u"LastCheckedOK"]
313
 
                     or self.properties[u"Created"]),
314
 
                    self.properties[u"LastEnabled"]))
315
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
316
 
            message = (u'A checker has failed! Time until client'
317
 
                       u' gets disabled: %s'
318
 
                           % unicode(timer).rsplit(".", 1)[0])
 
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)
319
289
        else:
320
 
            message = u"enabled"
321
 
        self._text = "%s%s" % (base, message)
322
 
            
 
290
            message = "enabled"
 
291
            self.using_timer(False)
 
292
        self._text = "{}{}".format(base, message)
 
293
 
323
294
        if not urwid.supports_unicode():
324
295
            self._text = self._text.encode("ascii", "replace")
325
 
        textlist = [(u"normal", self._text)]
 
296
        textlist = [("normal", self._text)]
326
297
        self._text_widget.set_text(textlist)
327
298
        self._focus_text_widget.set_text([(with_standout[text[0]],
328
299
                                           text[1])
335
306
        # Run update hook, if any
336
307
        if self.update_hook is not None:
337
308
            self.update_hook()
338
 
    
 
309
 
339
310
    def update_timer(self):
340
 
        "called by gobject"
 
311
        """called by GLib. Will indefinitely loop until
 
312
        GLib.source_remove() on tag is called
 
313
        """
341
314
        self.update()
342
315
        return True             # Keep calling this
343
 
    
344
 
    def delete(self):
 
316
 
 
317
    def delete(self, **kwargs):
345
318
        if self._update_timer_callback_tag is not None:
346
 
            gobject.source_remove(self._update_timer_callback_tag)
 
319
            GLib.source_remove(self._update_timer_callback_tag)
347
320
            self._update_timer_callback_tag = None
 
321
        for match in self.match_objects:
 
322
            match.remove()
 
323
        self.match_objects = ()
348
324
        if self.delete_hook is not None:
349
325
            self.delete_hook(self)
350
 
    
351
 
    def render(self, (maxcol,), focus=False):
 
326
        return super(MandosClientWidget, self).delete(**kwargs)
 
327
 
 
328
    def render(self, maxcolrow, focus=False):
352
329
        """Render differently if we have focus.
353
330
        This overrides the method from urwid.FlowWidget"""
354
 
        return self.current_widget(focus).render((maxcol,),
 
331
        return self.current_widget(focus).render(maxcolrow,
355
332
                                                 focus=focus)
356
 
    
357
 
    def keypress(self, (maxcol,), key):
 
333
 
 
334
    def keypress(self, maxcolrow, key):
358
335
        """Handle keys.
359
336
        This overrides the method from urwid.FlowWidget"""
360
 
        if key == u"+":
361
 
            self.proxy.Enable(dbus_interface = client_interface)
362
 
        elif key == u"-":
363
 
            self.proxy.Disable(dbus_interface = client_interface)
364
 
        elif key == u"a":
 
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":
365
346
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
366
 
                               dbus_interface = client_interface)
367
 
        elif key == u"d":
 
347
                               dbus_interface=client_interface,
 
348
                               ignore_reply=True)
 
349
        elif key == "d":
368
350
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
369
 
                                  dbus_interface = client_interface)
370
 
        elif key == u"R" or key == u"_" or key == u"ctrl k":
 
351
                               dbus_interface=client_interface,
 
352
                               ignore_reply=True)
 
353
        elif key == "R" or key == "_" or key == "ctrl k":
371
354
            self.server_proxy_object.RemoveClient(self.proxy
372
 
                                                  .object_path)
373
 
        elif key == u"s":
374
 
            self.proxy.StartChecker(dbus_interface = client_interface)
375
 
        elif key == u"S":
376
 
            self.proxy.StopChecker(dbus_interface = client_interface)
377
 
        elif key == u"C":
378
 
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
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)
379
368
        # xxx
380
 
#         elif key == u"p" or key == "=":
 
369
#         elif key == "p" or key == "=":
381
370
#             self.proxy.pause()
382
 
#         elif key == u"u" or key == ":":
 
371
#         elif key == "u" or key == ":":
383
372
#             self.proxy.unpause()
384
 
#         elif key == u"RET":
 
373
#         elif key == "RET":
385
374
#             self.open()
386
375
        else:
387
376
            return key
388
 
    
389
 
    def property_changed(self, property=None, value=None,
390
 
                         *args, **kwargs):
391
 
        """Call self.update() if old value is not new value.
 
377
 
 
378
    def properties_changed(self, interface, properties, invalidated):
 
379
        """Call self.update() if any properties changed.
392
380
        This overrides the method from MandosClientPropertyCache"""
393
 
        property_name = unicode(property)
394
 
        old_value = self.properties.get(property_name)
395
 
        super(MandosClientWidget, self).property_changed(
396
 
            property=property, value=value, *args, **kwargs)
397
 
        if self.properties.get(property_name) != old_value:
 
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):
398
387
            self.update()
399
388
 
400
389
 
403
392
    "down" key presses, thus not allowing any containing widgets to
404
393
    use them as an excuse to shift focus away from this widget.
405
394
    """
406
 
    def keypress(self, (maxcol, maxrow), key):
407
 
        ret = super(ConstrainedListBox, self).keypress((maxcol,
408
 
                                                        maxrow), key)
409
 
        if ret in (u"up", u"down"):
 
395
    def keypress(self, *args, **kwargs):
 
396
        ret = (super(ConstrainedListBox, self)
 
397
               .keypress(*args, **kwargs))
 
398
        if ret in ("up", "down"):
410
399
            return
411
400
        return ret
412
401
 
415
404
    """This is the entire user interface - the whole screen
416
405
    with boxes, lists of client widgets, etc.
417
406
    """
418
 
    def __init__(self, max_log_length=1000):
 
407
    def __init__(self, max_log_length=1000, log_level=1):
419
408
        DBusGMainLoop(set_as_default=True)
420
 
        
 
409
 
421
410
        self.screen = urwid.curses_display.Screen()
422
 
        
 
411
 
423
412
        self.screen.register_palette((
424
 
                (u"normal",
425
 
                 u"default", u"default", None),
426
 
                (u"bold",
427
 
                 u"default", u"default", u"bold"),
428
 
                (u"underline-blink",
429
 
                 u"default", u"default", u"underline"),
430
 
                (u"standout",
431
 
                 u"default", u"default", u"standout"),
432
 
                (u"bold-underline-blink",
433
 
                 u"default", u"default", (u"bold", u"underline")),
434
 
                (u"bold-standout",
435
 
                 u"default", u"default", (u"bold", u"standout")),
436
 
                (u"underline-blink-standout",
437
 
                 u"default", u"default", (u"underline", u"standout")),
438
 
                (u"bold-underline-blink-standout",
439
 
                 u"default", u"default", (u"bold", u"underline",
440
 
                                          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",
 
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"),
441
432
                ))
442
 
        
 
433
 
443
434
        if urwid.supports_unicode():
444
 
            self.divider = u"─" # \u2500
445
 
            #self.divider = u"━" # \u2501
 
435
            self.divider = "─"  # \u2500
446
436
        else:
447
 
            #self.divider = u"-" # \u002d
448
 
            self.divider = u"_" # \u005f
449
 
        
 
437
            self.divider = "_"  # \u005f
 
438
 
450
439
        self.screen.start()
451
 
        
 
440
 
452
441
        self.size = self.screen.get_cols_rows()
453
 
        
 
442
 
454
443
        self.clients = urwid.SimpleListWalker([])
455
444
        self.clients_dict = {}
456
 
        
 
445
 
457
446
        # We will add Text widgets to this list
458
447
        self.log = []
459
448
        self.max_log_length = max_log_length
460
 
        
 
449
 
 
450
        self.log_level = log_level
 
451
 
461
452
        # We keep a reference to the log widget so we can remove it
462
453
        # from the ListWalker without it getting destroyed
463
454
        self.logbox = ConstrainedListBox(self.log)
464
 
        
 
455
 
465
456
        # This keeps track of whether self.uilist currently has
466
457
        # self.logbox in it or not
467
458
        self.log_visible = True
468
 
        self.log_wrap = u"any"
469
 
        
 
459
        self.log_wrap = "any"
 
460
 
470
461
        self.rebuild()
471
 
        self.log_message_raw((u"bold",
472
 
                              u"Mandos Monitor version " + version))
473
 
        self.log_message_raw((u"bold",
474
 
                              u"q: Quit  ?: Help"))
475
 
        
 
462
        self.log_message_raw(("bold",
 
463
                              "Mandos Monitor version " + version))
 
464
        self.log_message_raw(("bold",
 
465
                              "q: Quit  ?: Help"))
 
466
 
476
467
        self.busname = domain + '.Mandos'
477
 
        self.main_loop = gobject.MainLoop()
478
 
        self.bus = dbus.SystemBus()
479
 
        mandos_dbus_objc = self.bus.get_object(
480
 
            self.busname, u"/", follow_name_owner_changes=True)
481
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
482
 
                                          dbus_interface
483
 
                                          = server_interface)
484
 
        try:
485
 
            mandos_clients = (self.mandos_serv
486
 
                              .GetAllClientsWithProperties())
487
 
        except dbus.exceptions.DBusException:
488
 
            mandos_clients = dbus.Dictionary()
489
 
        
490
 
        (self.mandos_serv
491
 
         .connect_to_signal(u"ClientRemoved",
492
 
                            self.find_and_remove_client,
493
 
                            dbus_interface=server_interface,
494
 
                            byte_arrays=True))
495
 
        (self.mandos_serv
496
 
         .connect_to_signal(u"ClientAdded",
497
 
                            self.add_new_client,
498
 
                            dbus_interface=server_interface,
499
 
                            byte_arrays=True))
500
 
        (self.mandos_serv
501
 
         .connect_to_signal(u"ClientNotFound",
502
 
                            self.client_not_found,
503
 
                            dbus_interface=server_interface,
504
 
                            byte_arrays=True))
505
 
        for path, client in mandos_clients.iteritems():
506
 
            client_proxy_object = self.bus.get_object(self.busname,
507
 
                                                      path)
508
 
            self.add_client(MandosClientWidget(server_proxy_object
509
 
                                               =self.mandos_serv,
510
 
                                               proxy_object
511
 
                                               =client_proxy_object,
512
 
                                               properties=client,
513
 
                                               update_hook
514
 
                                               =self.refresh,
515
 
                                               delete_hook
516
 
                                               =self.remove_client,
517
 
                                               logger
518
 
                                               =self.log_message),
519
 
                            path=path)
520
 
    
 
468
        self.main_loop = GLib.MainLoop()
 
469
 
521
470
    def client_not_found(self, fingerprint, address):
522
 
        self.log_message((u"Client with address %s and fingerprint %s"
523
 
                          u" could not be found" % (address,
524
 
                                                    fingerprint)))
525
 
    
 
471
        self.log_message("Client with address {} and fingerprint {}"
 
472
                         " could not be found"
 
473
                         .format(address, fingerprint))
 
474
 
526
475
    def rebuild(self):
527
476
        """This rebuilds the User Interface.
528
477
        Call this when the widget layout needs to change"""
529
478
        self.uilist = []
530
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
479
        # self.uilist.append(urwid.ListBox(self.clients))
531
480
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
532
481
                                                          clients),
533
 
                                       #header=urwid.Divider(),
 
482
                                       # header=urwid.Divider(),
534
483
                                       header=None,
535
 
                                       footer=
536
 
                                       urwid.Divider(div_char=
537
 
                                                     self.divider)))
 
484
                                       footer=urwid.Divider(
 
485
                                           div_char=self.divider)))
538
486
        if self.log_visible:
539
487
            self.uilist.append(self.logbox)
540
 
            pass
541
488
        self.topwidget = urwid.Pile(self.uilist)
542
 
    
543
 
    def log_message(self, message):
 
489
 
 
490
    def log_message(self, message, level=1):
 
491
        """Log message formatted with timestamp"""
 
492
        if level < self.log_level:
 
493
            return
544
494
        timestamp = datetime.datetime.now().isoformat()
545
 
        self.log_message_raw(timestamp + u": " + message)
546
 
    
547
 
    def log_message_raw(self, markup):
 
495
        self.log_message_raw("{}: {}".format(timestamp, message),
 
496
                             level=level)
 
497
 
 
498
    def log_message_raw(self, markup, level=1):
548
499
        """Add a log message to the log buffer."""
 
500
        if level < self.log_level:
 
501
            return
549
502
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
550
 
        if (self.max_log_length
551
 
            and len(self.log) > self.max_log_length):
552
 
            del self.log[0:len(self.log)-self.max_log_length-1]
 
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]
553
506
        self.logbox.set_focus(len(self.logbox.body.contents),
554
 
                              coming_from=u"above")
 
507
                              coming_from="above")
555
508
        self.refresh()
556
 
    
 
509
 
557
510
    def toggle_log_display(self):
558
511
        """Toggle visibility of the log buffer."""
559
512
        self.log_visible = not self.log_visible
560
513
        self.rebuild()
561
 
        #self.log_message(u"Log visibility changed to: "
562
 
        #                 + unicode(self.log_visible))
563
 
    
 
514
        self.log_message("Log visibility changed to: {}"
 
515
                         .format(self.log_visible), level=0)
 
516
 
564
517
    def change_log_display(self):
565
518
        """Change type of log display.
566
519
        Currently, this toggles wrapping of text lines."""
567
 
        if self.log_wrap == u"clip":
568
 
            self.log_wrap = u"any"
 
520
        if self.log_wrap == "clip":
 
521
            self.log_wrap = "any"
569
522
        else:
570
 
            self.log_wrap = u"clip"
 
523
            self.log_wrap = "clip"
571
524
        for textwidget in self.log:
572
525
            textwidget.set_wrap_mode(self.log_wrap)
573
 
        #self.log_message(u"Wrap mode: " + self.log_wrap)
574
 
    
575
 
    def find_and_remove_client(self, path, name):
576
 
        """Find an client from its object path and remove it.
577
 
        
578
 
        This is connected to the ClientRemoved signal from the
 
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
579
533
        Mandos server object."""
 
534
        if client_interface not in interfaces:
 
535
            # Not a Mandos client object; ignore
 
536
            return
580
537
        try:
581
538
            client = self.clients_dict[path]
582
539
        except KeyError:
583
540
            # not found?
584
 
            return
585
 
        self.remove_client(client, path)
586
 
    
587
 
    def add_new_client(self, path):
 
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
588
555
        client_proxy_object = self.bus.get_object(self.busname, path)
589
 
        self.add_client(MandosClientWidget(server_proxy_object
590
 
                                           =self.mandos_serv,
591
 
                                           proxy_object
592
 
                                           =client_proxy_object,
593
 
                                           update_hook
594
 
                                           =self.refresh,
595
 
                                           delete_hook
596
 
                                           =self.remove_client,
597
 
                                           logger
598
 
                                           =self.log_message),
 
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])),
599
563
                        path=path)
600
 
    
 
564
 
601
565
    def add_client(self, client, path=None):
602
566
        self.clients.append(client)
603
567
        if path is None:
604
568
            path = client.proxy.object_path
605
569
        self.clients_dict[path] = client
606
 
        self.clients.sort(None, lambda c: c.properties[u"Name"])
 
570
        self.clients.sort(key=lambda c: c.properties["Name"])
607
571
        self.refresh()
608
 
    
 
572
 
609
573
    def remove_client(self, client, path=None):
610
574
        self.clients.remove(client)
611
575
        if path is None:
612
576
            path = client.proxy.object_path
613
577
        del self.clients_dict[path]
614
 
        if not self.clients_dict:
615
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
616
 
            # is completely emptied, we need to recreate it.
617
 
            self.clients = urwid.SimpleListWalker([])
618
 
            self.rebuild()
619
578
        self.refresh()
620
 
    
 
579
 
621
580
    def refresh(self):
622
581
        """Redraw the screen"""
623
582
        canvas = self.topwidget.render(self.size, focus=True)
624
583
        self.screen.draw_screen(self.size, canvas)
625
 
    
 
584
 
626
585
    def run(self):
627
586
        """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
 
628
630
        self.refresh()
629
 
        self._input_callback_tag = (gobject.io_add_watch
 
631
        self._input_callback_tag = (GLib.io_add_watch
630
632
                                    (sys.stdin.fileno(),
631
 
                                     gobject.IO_IN,
 
633
                                     GLib.IO_IN,
632
634
                                     self.process_input))
633
635
        self.main_loop.run()
634
636
        # Main loop has finished, we should close everything now
635
 
        gobject.source_remove(self._input_callback_tag)
 
637
        GLib.source_remove(self._input_callback_tag)
636
638
        self.screen.stop()
637
 
    
 
639
 
638
640
    def stop(self):
639
641
        self.main_loop.quit()
640
 
    
 
642
 
641
643
    def process_input(self, source, condition):
642
644
        keys = self.screen.get_input()
643
 
        translations = { u"ctrl n": u"down",      # Emacs
644
 
                         u"ctrl p": u"up",        # Emacs
645
 
                         u"ctrl v": u"page down", # Emacs
646
 
                         u"meta v": u"page up",   # Emacs
647
 
                         u" ": u"page down",      # less
648
 
                         u"f": u"page down",      # less
649
 
                         u"b": u"page up",        # less
650
 
                         u"j": u"down",           # vi
651
 
                         u"k": u"up",             # vi
652
 
                         }
 
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
                        }
653
655
        for key in keys:
654
656
            try:
655
657
                key = translations[key]
656
658
            except KeyError:    # :-)
657
659
                pass
658
 
            
659
 
            if key == u"q" or key == u"Q":
 
660
 
 
661
            if key == "q" or key == "Q":
660
662
                self.stop()
661
663
                break
662
 
            elif key == u"window resize":
 
664
            elif key == "window resize":
663
665
                self.size = self.screen.get_cols_rows()
664
666
                self.refresh()
665
 
            elif key == u"\f":  # Ctrl-L
 
667
            elif key == "ctrl l":
 
668
                self.screen.clear()
666
669
                self.refresh()
667
 
            elif key == u"l" or key == u"D":
 
670
            elif key == "l" or key == "D":
668
671
                self.toggle_log_display()
669
672
                self.refresh()
670
 
            elif key == u"w" or key == u"i":
 
673
            elif key == "w" or key == "i":
671
674
                self.change_log_display()
672
675
                self.refresh()
673
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
676
            elif key == "?" or key == "f1" or key == "esc":
674
677
                if not self.log_visible:
675
678
                    self.log_visible = True
676
679
                    self.rebuild()
677
 
                self.log_message_raw((u"bold",
678
 
                                      u"  ".
679
 
                                      join((u"q: Quit",
680
 
                                            u"?: Help",
681
 
                                            u"l: Log window toggle",
682
 
                                            u"TAB: Switch window",
683
 
                                            u"w: Wrap (log)"))))
684
 
                self.log_message_raw((u"bold",
685
 
                                      u"  "
686
 
                                      .join((u"Clients:",
687
 
                                             u"+: Enable",
688
 
                                             u"-: Disable",
689
 
                                             u"R: Remove",
690
 
                                             u"s: Start new checker",
691
 
                                             u"S: Stop checker",
692
 
                                             u"C: Checker OK",
693
 
                                             u"a: Approve",
694
 
                                             u"d: Deny"))))
 
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"))))
695
700
                self.refresh()
696
 
            elif key == u"tab":
 
701
            elif key == "tab":
697
702
                if self.topwidget.get_focus() is self.logbox:
698
703
                    self.topwidget.set_focus(0)
699
704
                else:
700
705
                    self.topwidget.set_focus(self.logbox)
701
706
                self.refresh()
702
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
703
 
            #      or key == u">"):
704
 
            #    pass            # xxx end-of-buffer
705
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
706
 
            #      or key == u"<"):
707
 
            #    pass            # xxx beginning-of-buffer
708
 
            #elif key == u"ctrl e" or key == u"$":
709
 
            #    pass            # xxx move-end-of-line
710
 
            #elif key == u"ctrl a" or key == u"^":
711
 
            #    pass            # xxx move-beginning-of-line
712
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
713
 
            #    pass            # xxx left
714
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
715
 
            #    pass            # xxx right
716
 
            #elif key == u"a":
717
 
            #    pass            # scroll up log
718
 
            #elif key == u"z":
719
 
            #    pass            # scroll down log
 
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
720
732
            elif self.topwidget.selectable():
721
733
                self.topwidget.keypress(self.size, key)
722
734
                self.refresh()
723
735
        return True
724
736
 
 
737
 
725
738
ui = UserInterface()
726
739
try:
727
740
    ui.run()
728
741
except KeyboardInterrupt:
729
742
    ui.screen.stop()
730
 
except Exception, e:
731
 
    ui.log_message(unicode(e))
 
743
except Exception as e:
 
744
    ui.log_message(str(e))
732
745
    ui.screen.stop()
733
746
    raise