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  • Committer: Björn Påhlsson
  • Date: 2010-09-07 18:48:56 UTC
  • mto: (237.7.1 mandos)
  • mto: This revision was merged to the branch mainline in revision 270.
  • Revision ID: belorn@fukt.bsnet.se-20100907184856-waz6cvxbm7ranha2
added the actually plugin file for plymouth

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1
 
#!/usr/bin/python3 -bbI
 
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
 
from __future__ import (division, absolute_import, print_function,
27
 
                        unicode_literals)
28
3
 
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
 
import logging
36
7
import os
37
 
import warnings
 
8
import signal
 
9
 
38
10
import datetime
39
 
import locale
40
11
 
41
12
import urwid.curses_display
42
13
import urwid
43
14
 
44
15
from dbus.mainloop.glib import DBusGMainLoop
45
 
from gi.repository import GLib
 
16
import gobject
46
17
 
47
18
import dbus
48
19
 
49
 
if sys.version_info.major == 2:
50
 
    __metaclass__ = type
51
 
    str = unicode
52
 
    input = raw_input
53
 
 
54
 
# Show warnings by default
55
 
if not sys.warnoptions:
56
 
    warnings.simplefilter("default")
57
 
 
58
 
log = logging.getLogger(os.path.basename(sys.argv[0]))
59
 
logging.basicConfig(level="NOTSET", # Show all messages
60
 
                    format="%(message)s") # Show basic log messages
61
 
 
62
 
logging.captureWarnings(True)   # Show warnings via the logging system
63
 
 
64
 
locale.setlocale(locale.LC_ALL, "")
65
 
 
66
 
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
67
 
logging.getLogger("urwid").setLevel(logging.INFO)
 
20
import UserList
 
21
 
 
22
import locale
 
23
 
 
24
locale.setlocale(locale.LC_ALL, u'')
 
25
 
 
26
import logging
 
27
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
68
28
 
69
29
# Some useful constants
70
 
domain = "se.recompile"
71
 
server_interface = domain + ".Mandos"
72
 
client_interface = domain + ".Mandos.Client"
73
 
version = "1.8.18"
74
 
 
75
 
try:
76
 
    dbus.OBJECT_MANAGER_IFACE
77
 
except AttributeError:
78
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
79
 
 
 
30
domain = 'se.bsnet.fukt'
 
31
server_interface = domain + '.Mandos'
 
32
client_interface = domain + '.Mandos.Client'
 
33
version = "1.0.15"
 
34
 
 
35
# Always run in monochrome mode
 
36
urwid.curses_display.curses.has_colors = lambda : False
 
37
 
 
38
# Urwid doesn't support blinking, but we want it.  Since we have no
 
39
# use for underline on its own, we make underline also always blink.
 
40
urwid.curses_display.curses.A_UNDERLINE |= (
 
41
    urwid.curses_display.curses.A_BLINK)
80
42
 
81
43
def isoformat_to_datetime(iso):
82
44
    "Parse an ISO 8601 date string to a datetime.datetime()"
83
45
    if not iso:
84
46
        return None
85
 
    d, t = iso.split("T", 1)
86
 
    year, month, day = d.split("-", 2)
87
 
    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)
88
50
    second, fraction = divmod(float(second), 1)
89
51
    return datetime.datetime(int(year),
90
52
                             int(month),
91
53
                             int(day),
92
54
                             int(hour),
93
55
                             int(minute),
94
 
                             int(second),            # Whole seconds
95
 
                             int(fraction*1000000))  # Microseconds
96
 
 
97
 
 
98
 
class MandosClientPropertyCache:
 
56
                             int(second),           # Whole seconds
 
57
                             int(fraction*1000000)) # Microseconds
 
58
 
 
59
class MandosClientPropertyCache(object):
99
60
    """This wraps a Mandos Client D-Bus proxy object, caches the
100
61
    properties and calls a hook function when any of them are
101
62
    changed.
102
63
    """
103
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
104
 
        self.proxy = proxy_object  # Mandos Client proxy object
105
 
        self.properties = dict() if properties is None else properties
106
 
        self.property_changed_match = (
107
 
            self.proxy.connect_to_signal("PropertiesChanged",
108
 
                                         self.properties_changed,
109
 
                                         dbus.PROPERTIES_IFACE,
110
 
                                         byte_arrays=True))
111
 
 
112
 
        if properties is None:
113
 
            self.properties.update(self.proxy.GetAll(
114
 
                client_interface,
115
 
                dbus_interface=dbus.PROPERTIES_IFACE))
116
 
 
117
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
118
 
 
119
 
    def properties_changed(self, interface, properties, invalidated):
120
 
        """This is called whenever we get a PropertiesChanged signal
121
 
        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.
122
84
        """
123
85
        # Update properties dict with new value
124
 
        if interface == client_interface:
125
 
            self.properties.update(properties)
126
 
 
127
 
    def delete(self):
128
 
        self.property_changed_match.remove()
129
 
 
130
 
 
131
 
class MandosClientWidget(MandosClientPropertyCache, urwid.Widget):
 
86
        self.properties[property] = value
 
87
 
 
88
 
 
89
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
132
90
    """A Mandos Client which is visible on the screen.
133
91
    """
134
 
 
135
 
    _sizing = frozenset(["flow"])
136
 
 
 
92
    
137
93
    def __init__(self, server_proxy_object=None, update_hook=None,
138
 
                 delete_hook=None, **kwargs):
 
94
                 delete_hook=None, logger=None, *args, **kwargs):
139
95
        # Called on update
140
96
        self.update_hook = update_hook
141
97
        # Called on delete
142
98
        self.delete_hook = delete_hook
143
99
        # Mandos Server proxy object
144
100
        self.server_proxy_object = server_proxy_object
145
 
 
 
101
        # Logger
 
102
        self.logger = logger
 
103
        
146
104
        self._update_timer_callback_tag = None
147
 
 
 
105
        self.last_checker_failed = False
 
106
        
148
107
        # The widget shown normally
149
 
        self._text_widget = urwid.Text("")
 
108
        self._text_widget = urwid.Text(u"")
150
109
        # The widget shown when we have focus
151
 
        self._focus_text_widget = urwid.Text("")
152
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
110
        self._focus_text_widget = urwid.Text(u"")
 
111
        super(MandosClientWidget, self).__init__(
 
112
            update_hook=update_hook, delete_hook=delete_hook,
 
113
            *args, **kwargs)
153
114
        self.update()
154
115
        self.opened = False
155
 
 
156
 
        self.match_objects = (
157
 
            self.proxy.connect_to_signal("CheckerCompleted",
158
 
                                         self.checker_completed,
159
 
                                         client_interface,
160
 
                                         byte_arrays=True),
161
 
            self.proxy.connect_to_signal("CheckerStarted",
162
 
                                         self.checker_started,
163
 
                                         client_interface,
164
 
                                         byte_arrays=True),
165
 
            self.proxy.connect_to_signal("GotSecret",
166
 
                                         self.got_secret,
167
 
                                         client_interface,
168
 
                                         byte_arrays=True),
169
 
            self.proxy.connect_to_signal("NeedApproval",
170
 
                                         self.need_approval,
171
 
                                         client_interface,
172
 
                                         byte_arrays=True),
173
 
            self.proxy.connect_to_signal("Rejected",
174
 
                                         self.rejected,
175
 
                                         client_interface,
176
 
                                         byte_arrays=True))
177
 
        log.debug("Created client %s", self.properties["Name"])
178
 
 
179
 
    def using_timer(self, flag):
180
 
        """Call this method with True or False when timer should be
181
 
        activated or deactivated.
182
 
        """
183
 
        if flag and self._update_timer_callback_tag is None:
184
 
            # Will update the shown timer value every second
185
 
            self._update_timer_callback_tag = (
186
 
                GLib.timeout_add(1000,
187
 
                                 glib_safely(self.update_timer)))
188
 
        elif not (flag or self._update_timer_callback_tag is None):
189
 
            GLib.source_remove(self._update_timer_callback_tag)
190
 
            self._update_timer_callback_tag = None
191
 
 
 
116
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
117
                                     self.checker_completed,
 
118
                                     client_interface,
 
119
                                     byte_arrays=True)
 
120
        self.proxy.connect_to_signal(u"CheckerStarted",
 
121
                                     self.checker_started,
 
122
                                     client_interface,
 
123
                                     byte_arrays=True)
 
124
        self.proxy.connect_to_signal(u"GotSecret",
 
125
                                     self.got_secret,
 
126
                                     client_interface,
 
127
                                     byte_arrays=True)
 
128
        self.proxy.connect_to_signal(u"NeedApproval",
 
129
                                     self.need_approval,
 
130
                                     client_interface,
 
131
                                     byte_arrays=True)
 
132
        self.proxy.connect_to_signal(u"Rejected",
 
133
                                     self.rejected,
 
134
                                     client_interface,
 
135
                                     byte_arrays=True)
 
136
        last_checked_ok = isoformat_to_datetime(self.properties
 
137
                                                ["last_checked_ok"])
 
138
        if last_checked_ok is None:
 
139
            self.last_checker_failed = True
 
140
        else:
 
141
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
142
                                         - last_checked_ok)
 
143
                                        > datetime.timedelta
 
144
                                        (milliseconds=
 
145
                                         self.properties["interval"]))
 
146
        if self.last_checker_failed:
 
147
            self._update_timer_callback_tag = (gobject.timeout_add
 
148
                                               (1000,
 
149
                                                self.update_timer))
 
150
    
192
151
    def checker_completed(self, exitstatus, condition, command):
193
152
        if exitstatus == 0:
194
 
            log.debug('Checker for client %s (command "%s")'
195
 
                      " succeeded", self.properties["Name"], command)
 
153
            if self.last_checker_failed:
 
154
                self.last_checker_failed = False
 
155
                gobject.source_remove(self._update_timer_callback_tag)
 
156
                self._update_timer_callback_tag = None
 
157
            self.logger(u'Checker for client %s (command "%s")'
 
158
                        u' was successful'
 
159
                        % (self.properties[u"name"], command))
196
160
            self.update()
197
161
            return
198
162
        # Checker failed
 
163
        if not self.last_checker_failed:
 
164
            self.last_checker_failed = True
 
165
            self._update_timer_callback_tag = (gobject.timeout_add
 
166
                                               (1000,
 
167
                                                self.update_timer))
199
168
        if os.WIFEXITED(condition):
200
 
            log.info('Checker for client %s (command "%s") failed'
201
 
                     " with exit code %d", self.properties["Name"],
202
 
                     command, os.WEXITSTATUS(condition))
 
169
            self.logger(u'Checker for client %s (command "%s")'
 
170
                        u' failed with exit code %s'
 
171
                        % (self.properties[u"name"], command,
 
172
                           os.WEXITSTATUS(condition)))
203
173
        elif os.WIFSIGNALED(condition):
204
 
            log.info('Checker for client %s (command "%s") was'
205
 
                     " killed by signal %d", self.properties["Name"],
206
 
                     command, os.WTERMSIG(condition))
 
174
            self.logger(u'Checker for client %s (command "%s")'
 
175
                        u' was killed by signal %s'
 
176
                        % (self.properties[u"name"], command,
 
177
                           os.WTERMSIG(condition)))
 
178
        elif os.WCOREDUMP(condition):
 
179
            self.logger(u'Checker for client %s (command "%s")'
 
180
                        u' dumped core'
 
181
                        % (self.properties[u"name"], command))
 
182
        else:
 
183
            self.logger(u'Checker for client %s completed mysteriously')
207
184
        self.update()
208
 
 
 
185
    
209
186
    def checker_started(self, command):
210
 
        """Server signals that a checker started."""
211
 
        log.debug('Client %s started checker "%s"',
212
 
                  self.properties["Name"], command)
213
 
 
 
187
        #self.logger(u'Client %s started checker "%s"'
 
188
        #            % (self.properties[u"name"], unicode(command)))
 
189
        pass
 
190
    
214
191
    def got_secret(self):
215
 
        log.info("Client %s received its secret",
216
 
                 self.properties["Name"])
217
 
 
 
192
        self.logger(u'Client %s received its secret'
 
193
                    % self.properties[u"name"])
 
194
    
218
195
    def need_approval(self, timeout, default):
219
196
        if not default:
220
 
            message = "Client %s needs approval within %f seconds"
 
197
            message = u'Client %s needs approval within %s seconds'
221
198
        else:
222
 
            message = "Client %s will get its secret in %f seconds"
223
 
        log.info(message, self.properties["Name"], timeout/1000)
224
 
 
 
199
            message = u'Client %s will get its secret in %s seconds'
 
200
        self.logger(message
 
201
                    % (self.properties[u"name"], timeout/1000))
 
202
    
225
203
    def rejected(self, reason):
226
 
        log.info("Client %s was rejected; reason: %s",
227
 
                 self.properties["Name"], reason)
228
 
 
 
204
        self.logger(u'Client %s was rejected; reason: %s'
 
205
                    % (self.properties[u"name"], reason))
 
206
    
229
207
    def selectable(self):
230
208
        """Make this a "selectable" widget.
231
 
        This overrides the method from urwid.Widget."""
 
209
        This overrides the method from urwid.FlowWidget."""
232
210
        return True
233
 
 
234
 
    def rows(self, maxcolrow, focus=False):
 
211
    
 
212
    def rows(self, (maxcol,), focus=False):
235
213
        """How many rows this widget will occupy might depend on
236
214
        whether we have focus or not.
237
 
        This overrides the method from urwid.Widget"""
238
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
239
 
 
 
215
        This overrides the method from urwid.FlowWidget"""
 
216
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
217
    
240
218
    def current_widget(self, focus=False):
241
219
        if focus or self.opened:
242
220
            return self._focus_widget
243
221
        return self._widget
244
 
 
 
222
    
245
223
    def update(self):
246
224
        "Called when what is visible on the screen should be updated."
247
225
        # How to add standout mode to a style
248
 
        with_standout = {"normal": "standout",
249
 
                         "bold": "bold-standout",
250
 
                         "underline-blink":
251
 
                         "underline-blink-standout",
252
 
                         "bold-underline-blink":
253
 
                         "bold-underline-blink-standout",
254
 
                         }
 
226
        with_standout = { u"normal": u"standout",
 
227
                          u"bold": u"bold-standout",
 
228
                          u"underline-blink":
 
229
                              u"underline-blink-standout",
 
230
                          u"bold-underline-blink":
 
231
                              u"bold-underline-blink-standout",
 
232
                          }
255
233
 
256
234
        # Rebuild focus and non-focus widgets using current properties
257
235
 
258
236
        # Base part of a client. Name!
259
 
        base = "{name}: ".format(name=self.properties["Name"])
260
 
        if not self.properties["Enabled"]:
261
 
            message = "DISABLED"
262
 
            self.using_timer(False)
263
 
        elif self.properties["ApprovalPending"]:
264
 
            timeout = datetime.timedelta(
265
 
                milliseconds=self.properties["ApprovalDelay"])
266
 
            last_approval_request = isoformat_to_datetime(
267
 
                self.properties["LastApprovalRequest"])
268
 
            if last_approval_request is not None:
269
 
                timer = max(timeout - (datetime.datetime.utcnow()
270
 
                                       - last_approval_request),
271
 
                            datetime.timedelta())
272
 
            else:
273
 
                timer = datetime.timedelta()
274
 
            if self.properties["ApprovedByDefault"]:
275
 
                message = "Approval in {}. (d)eny?"
276
 
            else:
277
 
                message = "Denial in {}. (a)pprove?"
278
 
            message = message.format(str(timer).rsplit(".", 1)[0])
279
 
            self.using_timer(True)
280
 
        elif self.properties["LastCheckerStatus"] != 0:
281
 
            # When checker has failed, show timer until client expires
282
 
            expires = self.properties["Expires"]
283
 
            if expires == "":
284
 
                timer = datetime.timedelta(0)
285
 
            else:
286
 
                expires = (datetime.datetime.strptime
287
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
288
 
                timer = max(expires - datetime.datetime.utcnow(),
289
 
                            datetime.timedelta())
290
 
            message = ("A checker has failed! Time until client"
291
 
                       " gets disabled: {}"
292
 
                       .format(str(timer).rsplit(".", 1)[0]))
293
 
            self.using_timer(True)
 
237
        base = (u'%(name)s: '
 
238
                      % {u"name": self.properties[u"name"]})
 
239
        if not self.properties[u"enabled"]:
 
240
            message = u"DISABLED"
 
241
        elif self.last_checker_failed:
 
242
            timeout = datetime.timedelta(milliseconds
 
243
                                         = self.properties[u"timeout"])
 
244
            last_ok = isoformat_to_datetime(
 
245
                max((self.properties["last_checked_ok"]
 
246
                     or self.properties["created"]),
 
247
                    self.properties[u"last_enabled"]))
 
248
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
249
 
 
250
            message = (u'A checker has failed! Time until client gets diabled: %s'
 
251
                           % unicode(timer))
 
252
        elif self.properties[u"approved_pending"]:
 
253
            if self.properties[u"approved_by_default"]:
 
254
                message = u"Connection established to client. (d)eny?"
 
255
            else:
 
256
                message = u"Seeks approval to send secret. (a)pprove?"
294
257
        else:
295
 
            message = "enabled"
296
 
            self.using_timer(False)
297
 
        self._text = "{}{}".format(base, message)
298
 
 
 
258
            message = u"enabled"
 
259
        self._text = "%s%s" % (base, message)
 
260
            
299
261
        if not urwid.supports_unicode():
300
262
            self._text = self._text.encode("ascii", "replace")
301
 
        textlist = [("normal", self._text)]
 
263
        textlist = [(u"normal", self._text)]
302
264
        self._text_widget.set_text(textlist)
303
265
        self._focus_text_widget.set_text([(with_standout[text[0]],
304
266
                                           text[1])
311
273
        # Run update hook, if any
312
274
        if self.update_hook is not None:
313
275
            self.update_hook()
314
 
 
 
276
    
315
277
    def update_timer(self):
316
 
        """called by GLib. Will indefinitely loop until
317
 
        GLib.source_remove() on tag is called
318
 
        """
 
278
        "called by gobject"
319
279
        self.update()
320
280
        return True             # Keep calling this
321
 
 
322
 
    def delete(self, **kwargs):
 
281
    
 
282
    def delete(self):
323
283
        if self._update_timer_callback_tag is not None:
324
 
            GLib.source_remove(self._update_timer_callback_tag)
 
284
            gobject.source_remove(self._update_timer_callback_tag)
325
285
            self._update_timer_callback_tag = None
326
 
        for match in self.match_objects:
327
 
            match.remove()
328
 
        self.match_objects = ()
329
286
        if self.delete_hook is not None:
330
287
            self.delete_hook(self)
331
 
        return super(MandosClientWidget, self).delete(**kwargs)
332
 
 
333
 
    def render(self, maxcolrow, focus=False):
 
288
    
 
289
    def render(self, (maxcol,), focus=False):
334
290
        """Render differently if we have focus.
335
 
        This overrides the method from urwid.Widget"""
336
 
        return self.current_widget(focus).render(maxcolrow,
 
291
        This overrides the method from urwid.FlowWidget"""
 
292
        return self.current_widget(focus).render((maxcol,),
337
293
                                                 focus=focus)
338
 
 
339
 
    def keypress(self, maxcolrow, key):
 
294
    
 
295
    def keypress(self, (maxcol,), key):
340
296
        """Handle keys.
341
 
        This overrides the method from urwid.Widget"""
342
 
        if key == "+":
343
 
            self.proxy.Set(client_interface, "Enabled",
344
 
                           dbus.Boolean(True), ignore_reply=True,
345
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
346
 
        elif key == "-":
347
 
            self.proxy.Set(client_interface, "Enabled", False,
348
 
                           ignore_reply=True,
349
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
350
 
        elif key == "a":
 
297
        This overrides the method from urwid.FlowWidget"""
 
298
        if key == u"+":
 
299
            self.proxy.Enable(dbus_interface = client_interface)
 
300
        elif key == u"-":
 
301
            self.proxy.Disable(dbus_interface = client_interface)
 
302
        elif key == u"a":
351
303
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
352
 
                               dbus_interface=client_interface,
353
 
                               ignore_reply=True)
354
 
        elif key == "d":
 
304
                               dbus_interface = client_interface)
 
305
        elif key == u"d":
355
306
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
356
 
                               dbus_interface=client_interface,
357
 
                               ignore_reply=True)
358
 
        elif key == "R" or key == "_" or key == "ctrl k":
 
307
                                  dbus_interface = client_interface)
 
308
        elif key == u"r" or key == u"_" or key == u"ctrl k":
359
309
            self.server_proxy_object.RemoveClient(self.proxy
360
 
                                                  .object_path,
361
 
                                                  ignore_reply=True)
362
 
        elif key == "s":
363
 
            self.proxy.Set(client_interface, "CheckerRunning",
364
 
                           dbus.Boolean(True), ignore_reply=True,
365
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
366
 
        elif key == "S":
367
 
            self.proxy.Set(client_interface, "CheckerRunning",
368
 
                           dbus.Boolean(False), ignore_reply=True,
369
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
370
 
        elif key == "C":
371
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
372
 
                                 ignore_reply=True)
 
310
                                                  .object_path)
 
311
        elif key == u"s":
 
312
            self.proxy.StartChecker(dbus_interface = client_interface)
 
313
        elif key == u"S":
 
314
            self.proxy.StopChecker(dbus_interface = client_interface)
 
315
        elif key == u"C":
 
316
            self.proxy.CheckedOK(dbus_interface = client_interface)
373
317
        # xxx
374
 
#         elif key == "p" or key == "=":
 
318
#         elif key == u"p" or key == "=":
375
319
#             self.proxy.pause()
376
 
#         elif key == "u" or key == ":":
 
320
#         elif key == u"u" or key == ":":
377
321
#             self.proxy.unpause()
378
 
#         elif key == "RET":
 
322
#         elif key == u"RET":
379
323
#             self.open()
 
324
#        elif key == u"+":
 
325
#            self.proxy.Approve(True)
 
326
#        elif key == u"-":
 
327
#            self.proxy.Approve(False)
380
328
        else:
381
329
            return key
382
 
 
383
 
    def properties_changed(self, interface, properties, invalidated):
384
 
        """Call self.update() if any properties changed.
 
330
    
 
331
    def property_changed(self, property=None, value=None,
 
332
                         *args, **kwargs):
 
333
        """Call self.update() if old value is not new value.
385
334
        This overrides the method from MandosClientPropertyCache"""
386
 
        old_values = {key: self.properties.get(key)
387
 
                      for key in properties.keys()}
388
 
        super(MandosClientWidget, self).properties_changed(
389
 
            interface, properties, invalidated)
390
 
        if any(old_values[key] != self.properties.get(key)
391
 
               for key in old_values):
 
335
        property_name = unicode(property)
 
336
        old_value = self.properties.get(property_name)
 
337
        super(MandosClientWidget, self).property_changed(
 
338
            property=property, value=value, *args, **kwargs)
 
339
        if self.properties.get(property_name) != old_value:
392
340
            self.update()
393
341
 
394
342
 
395
 
def glib_safely(func, retval=True):
396
 
    def safe_func(*args, **kwargs):
397
 
        try:
398
 
            return func(*args, **kwargs)
399
 
        except Exception:
400
 
            log.exception("")
401
 
            return retval
402
 
    return safe_func
403
 
 
404
 
 
405
343
class ConstrainedListBox(urwid.ListBox):
406
344
    """Like a normal urwid.ListBox, but will consume all "up" or
407
345
    "down" key presses, thus not allowing any containing widgets to
408
346
    use them as an excuse to shift focus away from this widget.
409
347
    """
410
 
    def keypress(self, *args, **kwargs):
411
 
        ret = (super(ConstrainedListBox, self)
412
 
               .keypress(*args, **kwargs))
413
 
        if ret in ("up", "down"):
 
348
    def keypress(self, (maxcol, maxrow), key):
 
349
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
 
350
        if ret in (u"up", u"down"):
414
351
            return
415
352
        return ret
416
353
 
417
354
 
418
 
class UserInterface:
 
355
class UserInterface(object):
419
356
    """This is the entire user interface - the whole screen
420
357
    with boxes, lists of client widgets, etc.
421
358
    """
422
359
    def __init__(self, max_log_length=1000):
423
360
        DBusGMainLoop(set_as_default=True)
424
 
 
 
361
        
425
362
        self.screen = urwid.curses_display.Screen()
426
 
 
 
363
        
427
364
        self.screen.register_palette((
428
 
                ("normal",
429
 
                 "default", "default", None),
430
 
                ("bold",
431
 
                 "bold", "default", "bold"),
432
 
                ("underline-blink",
433
 
                 "underline,blink", "default", "underline,blink"),
434
 
                ("standout",
435
 
                 "standout", "default", "standout"),
436
 
                ("bold-underline-blink",
437
 
                 "bold,underline,blink", "default",
438
 
                 "bold,underline,blink"),
439
 
                ("bold-standout",
440
 
                 "bold,standout", "default", "bold,standout"),
441
 
                ("underline-blink-standout",
442
 
                 "underline,blink,standout", "default",
443
 
                 "underline,blink,standout"),
444
 
                ("bold-underline-blink-standout",
445
 
                 "bold,underline,blink,standout", "default",
446
 
                 "bold,underline,blink,standout"),
 
365
                (u"normal",
 
366
                 u"default", u"default", None),
 
367
                (u"bold",
 
368
                 u"default", u"default", u"bold"),
 
369
                (u"underline-blink",
 
370
                 u"default", u"default", u"underline"),
 
371
                (u"standout",
 
372
                 u"default", u"default", u"standout"),
 
373
                (u"bold-underline-blink",
 
374
                 u"default", u"default", (u"bold", u"underline")),
 
375
                (u"bold-standout",
 
376
                 u"default", u"default", (u"bold", u"standout")),
 
377
                (u"underline-blink-standout",
 
378
                 u"default", u"default", (u"underline", u"standout")),
 
379
                (u"bold-underline-blink-standout",
 
380
                 u"default", u"default", (u"bold", u"underline",
 
381
                                          u"standout")),
447
382
                ))
448
 
 
 
383
        
449
384
        if urwid.supports_unicode():
450
 
            self.divider = "─"  # \u2500
 
385
            self.divider = u"─" # \u2500
 
386
            #self.divider = u"━" # \u2501
451
387
        else:
452
 
            self.divider = "_"  # \u005f
453
 
 
 
388
            #self.divider = u"-" # \u002d
 
389
            self.divider = u"_" # \u005f
 
390
        
454
391
        self.screen.start()
455
 
 
 
392
        
456
393
        self.size = self.screen.get_cols_rows()
457
 
 
 
394
        
458
395
        self.clients = urwid.SimpleListWalker([])
459
396
        self.clients_dict = {}
460
 
 
 
397
        
461
398
        # We will add Text widgets to this list
462
 
        self.log = urwid.SimpleListWalker([])
 
399
        self.log = []
463
400
        self.max_log_length = max_log_length
464
 
 
 
401
        
465
402
        # We keep a reference to the log widget so we can remove it
466
403
        # from the ListWalker without it getting destroyed
467
404
        self.logbox = ConstrainedListBox(self.log)
468
 
 
 
405
        
469
406
        # This keeps track of whether self.uilist currently has
470
407
        # self.logbox in it or not
471
408
        self.log_visible = True
472
 
        self.log_wrap = "any"
473
 
 
474
 
        self.loghandler = UILogHandler(self)
475
 
 
 
409
        self.log_wrap = u"any"
 
410
        
476
411
        self.rebuild()
477
 
        self.add_log_line(("bold",
478
 
                           "Mandos Monitor version " + version))
479
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
480
 
 
481
 
        self.busname = domain + ".Mandos"
482
 
        self.main_loop = GLib.MainLoop()
483
 
 
484
 
    def client_not_found(self, key_id, address):
485
 
        log.info("Client with address %s and key ID %s could"
486
 
                 " not be found", address, key_id)
487
 
 
 
412
        self.log_message_raw((u"bold",
 
413
                              u"Mandos Monitor version " + version))
 
414
        self.log_message_raw((u"bold",
 
415
                              u"q: Quit  ?: Help"))
 
416
        
 
417
        self.busname = domain + '.Mandos'
 
418
        self.main_loop = gobject.MainLoop()
 
419
        self.bus = dbus.SystemBus()
 
420
        mandos_dbus_objc = self.bus.get_object(
 
421
            self.busname, u"/", follow_name_owner_changes=True)
 
422
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
423
                                          dbus_interface
 
424
                                          = server_interface)
 
425
        try:
 
426
            mandos_clients = (self.mandos_serv
 
427
                              .GetAllClientsWithProperties())
 
428
        except dbus.exceptions.DBusException:
 
429
            mandos_clients = dbus.Dictionary()
 
430
        
 
431
        (self.mandos_serv
 
432
         .connect_to_signal(u"ClientRemoved",
 
433
                            self.find_and_remove_client,
 
434
                            dbus_interface=server_interface,
 
435
                            byte_arrays=True))
 
436
        (self.mandos_serv
 
437
         .connect_to_signal(u"ClientAdded",
 
438
                            self.add_new_client,
 
439
                            dbus_interface=server_interface,
 
440
                            byte_arrays=True))
 
441
        (self.mandos_serv
 
442
         .connect_to_signal(u"ClientNotFound",
 
443
                            self.client_not_found,
 
444
                            dbus_interface=server_interface,
 
445
                            byte_arrays=True))
 
446
        for path, client in mandos_clients.iteritems():
 
447
            client_proxy_object = self.bus.get_object(self.busname,
 
448
                                                      path)
 
449
            self.add_client(MandosClientWidget(server_proxy_object
 
450
                                               =self.mandos_serv,
 
451
                                               proxy_object
 
452
                                               =client_proxy_object,
 
453
                                               properties=client,
 
454
                                               update_hook
 
455
                                               =self.refresh,
 
456
                                               delete_hook
 
457
                                               =self.remove_client,
 
458
                                               logger
 
459
                                               =self.log_message),
 
460
                            path=path)
 
461
    
 
462
    def client_not_found(self, fingerprint, address):
 
463
        self.log_message((u"Client with address %s and fingerprint %s"
 
464
                          u" could not be found" % (address,
 
465
                                                    fingerprint)))
 
466
    
488
467
    def rebuild(self):
489
468
        """This rebuilds the User Interface.
490
469
        Call this when the widget layout needs to change"""
491
470
        self.uilist = []
492
 
        # self.uilist.append(urwid.ListBox(self.clients))
493
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
494
 
                                                          clients),
495
 
                                       # header=urwid.Divider(),
 
471
        #self.uilist.append(urwid.ListBox(self.clients))
 
472
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
473
                                       #header=urwid.Divider(),
496
474
                                       header=None,
497
 
                                       footer=urwid.Divider(
498
 
                                           div_char=self.divider)))
 
475
                                       footer=urwid.Divider(div_char=self.divider)))
499
476
        if self.log_visible:
500
477
            self.uilist.append(self.logbox)
 
478
            pass
501
479
        self.topwidget = urwid.Pile(self.uilist)
502
 
 
503
 
    def add_log_line(self, markup):
 
480
    
 
481
    def log_message(self, message):
 
482
        timestamp = datetime.datetime.now().isoformat()
 
483
        self.log_message_raw(timestamp + u": " + message)
 
484
    
 
485
    def log_message_raw(self, markup):
 
486
        """Add a log message to the log buffer."""
504
487
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
505
 
        if self.max_log_length:
506
 
            if len(self.log) > self.max_log_length:
507
 
                del self.log[0:(len(self.log) - self.max_log_length)]
508
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
509
 
                              coming_from="above")
 
488
        if (self.max_log_length
 
489
            and len(self.log) > self.max_log_length):
 
490
            del self.log[0:len(self.log)-self.max_log_length-1]
 
491
        self.logbox.set_focus(len(self.logbox.body.contents),
 
492
                              coming_from=u"above")
510
493
        self.refresh()
511
 
 
 
494
    
512
495
    def toggle_log_display(self):
513
496
        """Toggle visibility of the log buffer."""
514
497
        self.log_visible = not self.log_visible
515
498
        self.rebuild()
516
 
        log.debug("Log visibility changed to: %s", self.log_visible)
517
 
 
 
499
        self.log_message(u"Log visibility changed to: "
 
500
                         + unicode(self.log_visible))
 
501
    
518
502
    def change_log_display(self):
519
503
        """Change type of log display.
520
504
        Currently, this toggles wrapping of text lines."""
521
 
        if self.log_wrap == "clip":
522
 
            self.log_wrap = "any"
 
505
        if self.log_wrap == u"clip":
 
506
            self.log_wrap = u"any"
523
507
        else:
524
 
            self.log_wrap = "clip"
 
508
            self.log_wrap = u"clip"
525
509
        for textwidget in self.log:
526
510
            textwidget.set_wrap_mode(self.log_wrap)
527
 
        log.debug("Wrap mode: %s", self.log_wrap)
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
 
511
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
512
    
 
513
    def find_and_remove_client(self, path, name):
 
514
        """Find an client from its object path and remove it.
 
515
        
 
516
        This is connected to the ClientRemoved signal from the
533
517
        Mandos server object."""
534
 
        if client_interface not in interfaces:
535
 
            # Not a Mandos client object; ignore
536
 
            return
537
518
        try:
538
519
            client = self.clients_dict[path]
539
520
        except KeyError:
540
521
            # not found?
541
 
            log.warning("Unknown client %s removed", path)
542
 
            return
543
 
        client.delete()
544
 
 
545
 
    def add_new_client(self, path, ifs_and_props):
546
 
        """Find a client by its object path and remove it.
547
 
 
548
 
        This is connected to the InterfacesAdded signal from the
549
 
        Mandos server object.
550
 
        """
551
 
        if client_interface not in ifs_and_props:
552
 
            # Not a Mandos client object; ignore
553
 
            return
 
522
            return
 
523
        self.remove_client(client, path)
 
524
    
 
525
    def add_new_client(self, path):
554
526
        client_proxy_object = self.bus.get_object(self.busname, path)
555
 
        self.add_client(MandosClientWidget(
556
 
            server_proxy_object=self.mandos_serv,
557
 
            proxy_object=client_proxy_object,
558
 
            update_hook=self.refresh,
559
 
            delete_hook=self.remove_client,
560
 
            properties=dict(ifs_and_props[client_interface])),
 
527
        self.add_client(MandosClientWidget(server_proxy_object
 
528
                                           =self.mandos_serv,
 
529
                                           proxy_object
 
530
                                           =client_proxy_object,
 
531
                                           update_hook
 
532
                                           =self.refresh,
 
533
                                           delete_hook
 
534
                                           =self.remove_client,
 
535
                                           logger
 
536
                                           =self.log_message),
561
537
                        path=path)
562
 
 
 
538
    
563
539
    def add_client(self, client, path=None):
564
540
        self.clients.append(client)
565
541
        if path is None:
566
542
            path = client.proxy.object_path
567
543
        self.clients_dict[path] = client
568
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
544
        self.clients.sort(None, lambda c: c.properties[u"name"])
569
545
        self.refresh()
570
 
 
 
546
    
571
547
    def remove_client(self, client, path=None):
572
548
        self.clients.remove(client)
573
549
        if path is None:
574
550
            path = client.proxy.object_path
575
551
        del self.clients_dict[path]
 
552
        if not self.clients_dict:
 
553
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
554
            # is completely emptied, we need to recreate it.
 
555
            self.clients = urwid.SimpleListWalker([])
 
556
            self.rebuild()
576
557
        self.refresh()
577
 
 
 
558
    
578
559
    def refresh(self):
579
560
        """Redraw the screen"""
580
561
        canvas = self.topwidget.render(self.size, focus=True)
581
562
        self.screen.draw_screen(self.size, canvas)
582
 
 
 
563
    
583
564
    def run(self):
584
565
        """Start the main loop and exit when it's done."""
585
 
        log.addHandler(self.loghandler)
586
 
        self.orig_log_propagate = log.propagate
587
 
        log.propagate = False
588
 
        self.orig_log_level = log.level
589
 
        log.setLevel("INFO")
590
 
        self.bus = dbus.SystemBus()
591
 
        mandos_dbus_objc = self.bus.get_object(
592
 
            self.busname, "/", follow_name_owner_changes=True)
593
 
        self.mandos_serv = dbus.Interface(
594
 
            mandos_dbus_objc, dbus_interface=server_interface)
595
 
        try:
596
 
            mandos_clients = (self.mandos_serv
597
 
                              .GetAllClientsWithProperties())
598
 
            if not mandos_clients:
599
 
                log.warning("Note: Server has no clients.")
600
 
        except dbus.exceptions.DBusException:
601
 
            log.warning("Note: No Mandos server running.")
602
 
            mandos_clients = dbus.Dictionary()
603
 
 
604
 
        (self.mandos_serv
605
 
         .connect_to_signal("InterfacesRemoved",
606
 
                            self.find_and_remove_client,
607
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
608
 
                            byte_arrays=True))
609
 
        (self.mandos_serv
610
 
         .connect_to_signal("InterfacesAdded",
611
 
                            self.add_new_client,
612
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
613
 
                            byte_arrays=True))
614
 
        (self.mandos_serv
615
 
         .connect_to_signal("ClientNotFound",
616
 
                            self.client_not_found,
617
 
                            dbus_interface=server_interface,
618
 
                            byte_arrays=True))
619
 
        for path, client in mandos_clients.items():
620
 
            client_proxy_object = self.bus.get_object(self.busname,
621
 
                                                      path)
622
 
            self.add_client(MandosClientWidget(
623
 
                server_proxy_object=self.mandos_serv,
624
 
                proxy_object=client_proxy_object,
625
 
                properties=client,
626
 
                update_hook=self.refresh,
627
 
                delete_hook=self.remove_client),
628
 
                            path=path)
629
 
 
630
566
        self.refresh()
631
 
        self._input_callback_tag = (
632
 
            GLib.io_add_watch(
633
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
634
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
635
 
                glib_safely(self.process_input)))
 
567
        self._input_callback_tag = (gobject.io_add_watch
 
568
                                    (sys.stdin.fileno(),
 
569
                                     gobject.IO_IN,
 
570
                                     self.process_input))
636
571
        self.main_loop.run()
637
572
        # Main loop has finished, we should close everything now
638
 
        GLib.source_remove(self._input_callback_tag)
639
 
        with warnings.catch_warnings():
640
 
            warnings.simplefilter("ignore", BytesWarning)
641
 
            self.screen.stop()
642
 
 
 
573
        gobject.source_remove(self._input_callback_tag)
 
574
        self.screen.stop()
 
575
    
643
576
    def stop(self):
644
577
        self.main_loop.quit()
645
 
        log.removeHandler(self.loghandler)
646
 
        log.propagate = self.orig_log_propagate
647
 
 
 
578
    
648
579
    def process_input(self, source, condition):
649
580
        keys = self.screen.get_input()
650
 
        translations = {"ctrl n": "down",       # Emacs
651
 
                        "ctrl p": "up",         # Emacs
652
 
                        "ctrl v": "page down",  # Emacs
653
 
                        "meta v": "page up",    # Emacs
654
 
                        " ": "page down",       # less
655
 
                        "f": "page down",       # less
656
 
                        "b": "page up",         # less
657
 
                        "j": "down",            # vi
658
 
                        "k": "up",              # vi
659
 
                        }
 
581
        translations = { u"ctrl n": u"down",      # Emacs
 
582
                         u"ctrl p": u"up",        # Emacs
 
583
                         u"ctrl v": u"page down", # Emacs
 
584
                         u"meta v": u"page up",   # Emacs
 
585
                         u" ": u"page down",      # less
 
586
                         u"f": u"page down",      # less
 
587
                         u"b": u"page up",        # less
 
588
                         u"j": u"down",           # vi
 
589
                         u"k": u"up",             # vi
 
590
                         }
660
591
        for key in keys:
661
592
            try:
662
593
                key = translations[key]
663
594
            except KeyError:    # :-)
664
595
                pass
665
 
 
666
 
            if key == "q" or key == "Q":
 
596
            
 
597
            if key == u"q" or key == u"Q":
667
598
                self.stop()
668
599
                break
669
 
            elif key == "window resize":
 
600
            elif key == u"window resize":
670
601
                self.size = self.screen.get_cols_rows()
671
602
                self.refresh()
672
 
            elif key == "ctrl l":
673
 
                self.screen.clear()
 
603
            elif key == u"\f":  # Ctrl-L
674
604
                self.refresh()
675
 
            elif key == "l" or key == "D":
 
605
            elif key == u"l" or key == u"D":
676
606
                self.toggle_log_display()
677
607
                self.refresh()
678
 
            elif key == "w" or key == "i":
 
608
            elif key == u"w" or key == u"i":
679
609
                self.change_log_display()
680
610
                self.refresh()
681
 
            elif key == "?" or key == "f1" or key == "esc":
 
611
            elif key == u"?" or key == u"f1" or key == u"esc":
682
612
                if not self.log_visible:
683
613
                    self.log_visible = True
684
614
                    self.rebuild()
685
 
                self.add_log_line(("bold",
686
 
                                   "  ".join(("q: Quit",
687
 
                                              "?: Help",
688
 
                                              "l: Log window toggle",
689
 
                                              "TAB: Switch window",
690
 
                                              "w: Wrap (log lines)",
691
 
                                              "v: Toggle verbose log",
692
 
                                   ))))
693
 
                self.add_log_line(("bold",
694
 
                                   "  ".join(("Clients:",
695
 
                                              "+: Enable",
696
 
                                              "-: Disable",
697
 
                                              "R: Remove",
698
 
                                              "s: Start new checker",
699
 
                                              "S: Stop checker",
700
 
                                              "C: Checker OK",
701
 
                                              "a: Approve",
702
 
                                              "d: Deny",
703
 
                                   ))))
 
615
                self.log_message_raw((u"bold",
 
616
                                      u"  ".
 
617
                                      join((u"q: Quit",
 
618
                                            u"?: Help",
 
619
                                            u"l: Log window toggle",
 
620
                                            u"TAB: Switch window",
 
621
                                            u"w: Wrap (log)"))))
 
622
                self.log_message_raw((u"bold",
 
623
                                      u"  "
 
624
                                      .join((u"Clients:",
 
625
                                             u"+: Enable",
 
626
                                             u"-: Disable",
 
627
                                             u"r: Remove",
 
628
                                             u"s: Start new checker",
 
629
                                             u"S: Stop checker",
 
630
                                             u"C: Checker OK",
 
631
                                             u"a: Approve",
 
632
                                             u"d: Deny"))))
704
633
                self.refresh()
705
 
            elif key == "tab":
 
634
            elif key == u"tab":
706
635
                if self.topwidget.get_focus() is self.logbox:
707
636
                    self.topwidget.set_focus(0)
708
637
                else:
709
638
                    self.topwidget.set_focus(self.logbox)
710
639
                self.refresh()
711
 
            elif key == "v":
712
 
                if log.level < logging.INFO:
713
 
                    log.setLevel(logging.INFO)
714
 
                    log.info("Verbose mode: Off")
715
 
                else:
716
 
                    log.setLevel(logging.NOTSET)
717
 
                    log.info("Verbose mode: On")
718
 
            # elif (key == "end" or key == "meta >" or key == "G"
719
 
            #       or key == ">"):
720
 
            #     pass            # xxx end-of-buffer
721
 
            # elif (key == "home" or key == "meta <" or key == "g"
722
 
            #       or key == "<"):
723
 
            #     pass            # xxx beginning-of-buffer
724
 
            # elif key == "ctrl e" or key == "$":
725
 
            #     pass            # xxx move-end-of-line
726
 
            # elif key == "ctrl a" or key == "^":
727
 
            #     pass            # xxx move-beginning-of-line
728
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
729
 
            #     pass            # xxx left
730
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
731
 
            #     pass            # xxx right
732
 
            # elif key == "a":
733
 
            #     pass            # scroll up log
734
 
            # elif key == "z":
735
 
            #     pass            # scroll down log
 
640
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
641
            #      or key == u">"):
 
642
            #    pass            # xxx end-of-buffer
 
643
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
644
            #      or key == u"<"):
 
645
            #    pass            # xxx beginning-of-buffer
 
646
            #elif key == u"ctrl e" or key == u"$":
 
647
            #    pass            # xxx move-end-of-line
 
648
            #elif key == u"ctrl a" or key == u"^":
 
649
            #    pass            # xxx move-beginning-of-line
 
650
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
651
            #    pass            # xxx left
 
652
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
653
            #    pass            # xxx right
 
654
            #elif key == u"a":
 
655
            #    pass            # scroll up log
 
656
            #elif key == u"z":
 
657
            #    pass            # scroll down log
736
658
            elif self.topwidget.selectable():
737
659
                self.topwidget.keypress(self.size, key)
738
660
                self.refresh()
739
661
        return True
740
662
 
741
 
 
742
 
class UILogHandler(logging.Handler):
743
 
    def __init__(self, ui, *args, **kwargs):
744
 
        self.ui = ui
745
 
        super(UILogHandler, self).__init__(*args, **kwargs)
746
 
        self.setFormatter(
747
 
            logging.Formatter("%(asctime)s: %(message)s"))
748
 
    def emit(self, record):
749
 
        msg = self.format(record)
750
 
        if record.levelno > logging.INFO:
751
 
            msg = ("bold", msg)
752
 
        self.ui.add_log_line(msg)
753
 
 
754
 
 
755
663
ui = UserInterface()
756
664
try:
757
665
    ui.run()
758
 
except KeyboardInterrupt:
759
 
    with warnings.catch_warnings():
760
 
        warnings.filterwarnings("ignore", "", BytesWarning)
761
 
        ui.screen.stop()
762
 
except Exception:
763
 
    with warnings.catch_warnings():
764
 
        warnings.filterwarnings("ignore", "", BytesWarning)
765
 
        ui.screen.stop()
 
666
except Exception, e:
 
667
    ui.log_message(unicode(e))
 
668
    ui.screen.stop()
766
669
    raise