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  • Committer: Teddy Hogeborn
  • Date: 2010-11-16 17:58:49 UTC
  • Revision ID: teddy@fukt.bsnet.se-20101116175849-m0fttdoskhahgyup
* plugins.d/plymouth.c: Fixed comment to "Plymouth" instead of "Usplash".
 (makeprompt): Mimic the default prompt.
 (exec_and_wait): Correct type of "tmp"; remove cast.  Also remove
                  unnecessary cast of NULL.

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1
 
#!/usr/bin/python3 -bbI
 
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 © 2009-2019 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
 
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
13
11
# the Free Software Foundation, either version 3 of the License, or
14
12
# (at your option) any later version.
15
13
#
16
 
#     Mandos is distributed in the hope that it will be useful, but
17
 
#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
14
#     This program is distributed in the hope that it will be useful,
 
15
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
18
16
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19
17
#     GNU General Public License for more details.
20
 
#
 
18
21
19
# 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
 
#
 
20
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
21
 
22
# Contact the authors at <mandos@fukt.bsnet.se>.
 
23
26
24
 
27
 
from __future__ import (division, absolute_import, print_function,
28
 
                        unicode_literals)
29
 
try:
30
 
    from future_builtins import *
31
 
except ImportError:
32
 
    pass
 
25
from __future__ import division, absolute_import, with_statement
33
26
 
34
27
import sys
35
28
import os
36
 
import warnings
 
29
import signal
 
30
 
37
31
import datetime
38
 
import locale
39
 
import logging
40
32
 
41
33
import urwid.curses_display
42
34
import urwid
43
35
 
44
36
from dbus.mainloop.glib import DBusGMainLoop
45
 
from gi.repository import GLib
 
37
import gobject
46
38
 
47
39
import dbus
48
40
 
49
 
if sys.version_info.major == 2:
50
 
    __metaclass__ = type
51
 
    str = unicode
52
 
 
53
 
log = logging.getLogger(os.path.basename(sys.argv[0]))
54
 
logging.basicConfig(level="NOTSET", # Show all messages
55
 
                    format="%(message)s") # Show basic log messages
56
 
 
57
 
logging.captureWarnings(True)   # Show warnings via the logging system
58
 
 
59
 
locale.setlocale(locale.LC_ALL, "")
60
 
 
61
 
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
41
import UserList
 
42
 
 
43
import locale
 
44
 
 
45
locale.setlocale(locale.LC_ALL, u'')
 
46
 
 
47
import logging
 
48
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
62
49
 
63
50
# Some useful constants
64
 
domain = "se.recompile"
65
 
server_interface = domain + ".Mandos"
66
 
client_interface = domain + ".Mandos.Client"
67
 
version = "1.8.9"
68
 
 
69
 
try:
70
 
    dbus.OBJECT_MANAGER_IFACE
71
 
except AttributeError:
72
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
73
 
 
 
51
domain = 'se.bsnet.fukt'
 
52
server_interface = domain + '.Mandos'
 
53
client_interface = domain + '.Mandos.Client'
 
54
version = "1.2.3"
 
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)
74
63
 
75
64
def isoformat_to_datetime(iso):
76
65
    "Parse an ISO 8601 date string to a datetime.datetime()"
77
66
    if not iso:
78
67
        return None
79
 
    d, t = iso.split("T", 1)
80
 
    year, month, day = d.split("-", 2)
81
 
    hour, minute, second = t.split(":", 2)
 
68
    d, t = iso.split(u"T", 1)
 
69
    year, month, day = d.split(u"-", 2)
 
70
    hour, minute, second = t.split(u":", 2)
82
71
    second, fraction = divmod(float(second), 1)
83
72
    return datetime.datetime(int(year),
84
73
                             int(month),
85
74
                             int(day),
86
75
                             int(hour),
87
76
                             int(minute),
88
 
                             int(second),            # Whole seconds
89
 
                             int(fraction*1000000))  # Microseconds
90
 
 
91
 
 
92
 
class MandosClientPropertyCache:
 
77
                             int(second),           # Whole seconds
 
78
                             int(fraction*1000000)) # Microseconds
 
79
 
 
80
class MandosClientPropertyCache(object):
93
81
    """This wraps a Mandos Client D-Bus proxy object, caches the
94
82
    properties and calls a hook function when any of them are
95
83
    changed.
96
84
    """
97
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
98
 
        self.proxy = proxy_object  # Mandos Client proxy object
99
 
        self.properties = dict() if properties is None else properties
100
 
        self.property_changed_match = (
101
 
            self.proxy.connect_to_signal("PropertiesChanged",
102
 
                                         self.properties_changed,
103
 
                                         dbus.PROPERTIES_IFACE,
104
 
                                         byte_arrays=True))
105
 
 
106
 
        if properties is None:
107
 
            self.properties.update(self.proxy.GetAll(
108
 
                client_interface,
109
 
                dbus_interface=dbus.PROPERTIES_IFACE))
110
 
 
111
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
112
 
 
113
 
    def properties_changed(self, interface, properties, invalidated):
114
 
        """This is called whenever we get a PropertiesChanged signal
115
 
        It updates the changed properties in the "properties" dict.
 
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.
116
105
        """
117
106
        # Update properties dict with new value
118
 
        if interface == client_interface:
119
 
            self.properties.update(properties)
120
 
 
121
 
    def delete(self):
122
 
        self.property_changed_match.remove()
 
107
        self.properties[property] = value
123
108
 
124
109
 
125
110
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
126
111
    """A Mandos Client which is visible on the screen.
127
112
    """
128
 
 
 
113
    
129
114
    def __init__(self, server_proxy_object=None, update_hook=None,
130
 
                 delete_hook=None, **kwargs):
 
115
                 delete_hook=None, logger=None, *args, **kwargs):
131
116
        # Called on update
132
117
        self.update_hook = update_hook
133
118
        # Called on delete
134
119
        self.delete_hook = delete_hook
135
120
        # Mandos Server proxy object
136
121
        self.server_proxy_object = server_proxy_object
137
 
 
 
122
        # Logger
 
123
        self.logger = logger
 
124
        
138
125
        self._update_timer_callback_tag = None
139
 
 
 
126
        self._update_timer_callback_lock = 0
 
127
        self.last_checker_failed = False
 
128
        
140
129
        # The widget shown normally
141
 
        self._text_widget = urwid.Text("")
 
130
        self._text_widget = urwid.Text(u"")
142
131
        # The widget shown when we have focus
143
 
        self._focus_text_widget = urwid.Text("")
144
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
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)
145
136
        self.update()
146
137
        self.opened = False
147
 
 
148
 
        self.match_objects = (
149
 
            self.proxy.connect_to_signal("CheckerCompleted",
150
 
                                         self.checker_completed,
151
 
                                         client_interface,
152
 
                                         byte_arrays=True),
153
 
            self.proxy.connect_to_signal("CheckerStarted",
154
 
                                         self.checker_started,
155
 
                                         client_interface,
156
 
                                         byte_arrays=True),
157
 
            self.proxy.connect_to_signal("GotSecret",
158
 
                                         self.got_secret,
159
 
                                         client_interface,
160
 
                                         byte_arrays=True),
161
 
            self.proxy.connect_to_signal("NeedApproval",
162
 
                                         self.need_approval,
163
 
                                         client_interface,
164
 
                                         byte_arrays=True),
165
 
            self.proxy.connect_to_signal("Rejected",
166
 
                                         self.rejected,
167
 
                                         client_interface,
168
 
                                         byte_arrays=True))
169
 
        log.debug("Created client %s", self.properties["Name"])
170
 
 
 
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
        
171
184
    def using_timer(self, flag):
172
185
        """Call this method with True or False when timer should be
173
186
        activated or deactivated.
174
187
        """
175
 
        if flag and self._update_timer_callback_tag is None:
176
 
            # Will update the shown timer value every second
177
 
            self._update_timer_callback_tag = (
178
 
                GLib.timeout_add(1000,
179
 
                                 glib_safely(self.update_timer)))
180
 
        elif not (flag or self._update_timer_callback_tag is None):
181
 
            GLib.source_remove(self._update_timer_callback_tag)
 
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
 
195
                                               (1000,
 
196
                                                self.update_timer))
 
197
        elif old and self._update_timer_callback_lock == 0:
 
198
            gobject.source_remove(self._update_timer_callback_tag)
182
199
            self._update_timer_callback_tag = None
183
 
 
 
200
    
184
201
    def checker_completed(self, exitstatus, condition, command):
185
202
        if exitstatus == 0:
186
 
            log.debug('Checker for client %s (command "%s")'
187
 
                      " succeeded", self.properties["Name"], command)
 
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))
188
209
            self.update()
189
210
            return
190
211
        # Checker failed
 
212
        if not self.last_checker_failed:
 
213
            self.last_checker_failed = True
 
214
            self.using_timer(True)
191
215
        if os.WIFEXITED(condition):
192
 
            log.info('Checker for client %s (command "%s") failed'
193
 
                     " with exit code %d", self.properties["Name"],
194
 
                     command, os.WEXITSTATUS(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)))
195
220
        elif os.WIFSIGNALED(condition):
196
 
            log.info('Checker for client %s (command "%s") was'
197
 
                     " killed by signal %d", self.properties["Name"],
198
 
                     command, os.WTERMSIG(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')
199
232
        self.update()
200
 
 
 
233
    
201
234
    def checker_started(self, command):
202
 
        """Server signals that a checker started."""
203
 
        log.debug('Client %s started checker "%s"',
204
 
                  self.properties["Name"], command)
205
 
 
 
235
        #self.logger(u'Client %s started checker "%s"'
 
236
        #            % (self.properties[u"Name"], unicode(command)))
 
237
        pass
 
238
    
206
239
    def got_secret(self):
207
 
        log.info("Client %s received its secret",
208
 
                 self.properties["Name"])
209
 
 
 
240
        self.last_checker_failed = False
 
241
        self.logger(u'Client %s received its secret'
 
242
                    % self.properties[u"Name"])
 
243
    
210
244
    def need_approval(self, timeout, default):
211
245
        if not default:
212
 
            message = "Client %s needs approval within %f seconds"
 
246
            message = u'Client %s needs approval within %s seconds'
213
247
        else:
214
 
            message = "Client %s will get its secret in %f seconds"
215
 
        log.info(message, self.properties["Name"], timeout/1000)
216
 
 
 
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
    
217
253
    def rejected(self, reason):
218
 
        log.info("Client %s was rejected; reason: %s",
219
 
                 self.properties["Name"], reason)
220
 
 
 
254
        self.logger(u'Client %s was rejected; reason: %s'
 
255
                    % (self.properties[u"Name"], reason))
 
256
    
221
257
    def selectable(self):
222
258
        """Make this a "selectable" widget.
223
259
        This overrides the method from urwid.FlowWidget."""
224
260
        return True
225
 
 
226
 
    def rows(self, maxcolrow, focus=False):
 
261
    
 
262
    def rows(self, (maxcol,), focus=False):
227
263
        """How many rows this widget will occupy might depend on
228
264
        whether we have focus or not.
229
265
        This overrides the method from urwid.FlowWidget"""
230
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
231
 
 
 
266
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
267
    
232
268
    def current_widget(self, focus=False):
233
269
        if focus or self.opened:
234
270
            return self._focus_widget
235
271
        return self._widget
236
 
 
 
272
    
237
273
    def update(self):
238
274
        "Called when what is visible on the screen should be updated."
239
275
        # How to add standout mode to a style
240
 
        with_standout = {"normal": "standout",
241
 
                         "bold": "bold-standout",
242
 
                         "underline-blink":
243
 
                         "underline-blink-standout",
244
 
                         "bold-underline-blink":
245
 
                         "bold-underline-blink-standout",
246
 
                         }
 
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
                          }
247
283
 
248
284
        # Rebuild focus and non-focus widgets using current properties
249
285
 
250
286
        # Base part of a client. Name!
251
 
        base = "{name}: ".format(name=self.properties["Name"])
252
 
        if not self.properties["Enabled"]:
253
 
            message = "DISABLED"
254
 
            self.using_timer(False)
255
 
        elif self.properties["ApprovalPending"]:
256
 
            timeout = datetime.timedelta(
257
 
                milliseconds=self.properties["ApprovalDelay"])
 
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"])
258
295
            last_approval_request = isoformat_to_datetime(
259
 
                self.properties["LastApprovalRequest"])
 
296
                self.properties[u"LastApprovalRequest"])
260
297
            if last_approval_request is not None:
261
 
                timer = max(timeout - (datetime.datetime.utcnow()
262
 
                                       - last_approval_request),
263
 
                            datetime.timedelta())
 
298
                timer = timeout - (datetime.datetime.utcnow()
 
299
                                   - last_approval_request)
264
300
            else:
265
301
                timer = datetime.timedelta()
266
 
            if self.properties["ApprovedByDefault"]:
267
 
                message = "Approval in {}. (d)eny?"
268
 
            else:
269
 
                message = "Denial in {}. (a)pprove?"
270
 
            message = message.format(str(timer).rsplit(".", 1)[0])
271
 
            self.using_timer(True)
272
 
        elif self.properties["LastCheckerStatus"] != 0:
273
 
            # When checker has failed, show timer until client expires
274
 
            expires = self.properties["Expires"]
275
 
            if expires == "":
276
 
                timer = datetime.timedelta(0)
277
 
            else:
278
 
                expires = (datetime.datetime.strptime
279
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
280
 
                timer = max(expires - datetime.datetime.utcnow(),
281
 
                            datetime.timedelta())
282
 
            message = ("A checker has failed! Time until client"
283
 
                       " gets disabled: {}"
284
 
                       .format(str(timer).rsplit(".", 1)[0]))
285
 
            self.using_timer(True)
 
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])
286
319
        else:
287
 
            message = "enabled"
288
 
            self.using_timer(False)
289
 
        self._text = "{}{}".format(base, message)
290
 
 
 
320
            message = u"enabled"
 
321
        self._text = "%s%s" % (base, message)
 
322
            
291
323
        if not urwid.supports_unicode():
292
324
            self._text = self._text.encode("ascii", "replace")
293
 
        textlist = [("normal", self._text)]
 
325
        textlist = [(u"normal", self._text)]
294
326
        self._text_widget.set_text(textlist)
295
327
        self._focus_text_widget.set_text([(with_standout[text[0]],
296
328
                                           text[1])
303
335
        # Run update hook, if any
304
336
        if self.update_hook is not None:
305
337
            self.update_hook()
306
 
 
 
338
    
307
339
    def update_timer(self):
308
 
        """called by GLib. Will indefinitely loop until
309
 
        GLib.source_remove() on tag is called
310
 
        """
 
340
        "called by gobject"
311
341
        self.update()
312
342
        return True             # Keep calling this
313
 
 
314
 
    def delete(self, **kwargs):
 
343
    
 
344
    def delete(self):
315
345
        if self._update_timer_callback_tag is not None:
316
 
            GLib.source_remove(self._update_timer_callback_tag)
 
346
            gobject.source_remove(self._update_timer_callback_tag)
317
347
            self._update_timer_callback_tag = None
318
 
        for match in self.match_objects:
319
 
            match.remove()
320
 
        self.match_objects = ()
321
348
        if self.delete_hook is not None:
322
349
            self.delete_hook(self)
323
 
        return super(MandosClientWidget, self).delete(**kwargs)
324
 
 
325
 
    def render(self, maxcolrow, focus=False):
 
350
    
 
351
    def render(self, (maxcol,), focus=False):
326
352
        """Render differently if we have focus.
327
353
        This overrides the method from urwid.FlowWidget"""
328
 
        return self.current_widget(focus).render(maxcolrow,
 
354
        return self.current_widget(focus).render((maxcol,),
329
355
                                                 focus=focus)
330
 
 
331
 
    def keypress(self, maxcolrow, key):
 
356
    
 
357
    def keypress(self, (maxcol,), key):
332
358
        """Handle keys.
333
359
        This overrides the method from urwid.FlowWidget"""
334
 
        if key == "+":
335
 
            self.proxy.Set(client_interface, "Enabled",
336
 
                           dbus.Boolean(True), ignore_reply=True,
337
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
338
 
        elif key == "-":
339
 
            self.proxy.Set(client_interface, "Enabled", False,
340
 
                           ignore_reply=True,
341
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
342
 
        elif key == "a":
 
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":
343
365
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
344
 
                               dbus_interface=client_interface,
345
 
                               ignore_reply=True)
346
 
        elif key == "d":
 
366
                               dbus_interface = client_interface)
 
367
        elif key == u"d":
347
368
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
348
 
                               dbus_interface=client_interface,
349
 
                               ignore_reply=True)
350
 
        elif key == "R" or key == "_" or key == "ctrl k":
 
369
                                  dbus_interface = client_interface)
 
370
        elif key == u"R" or key == u"_" or key == u"ctrl k":
351
371
            self.server_proxy_object.RemoveClient(self.proxy
352
 
                                                  .object_path,
353
 
                                                  ignore_reply=True)
354
 
        elif key == "s":
355
 
            self.proxy.Set(client_interface, "CheckerRunning",
356
 
                           dbus.Boolean(True), ignore_reply=True,
357
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
358
 
        elif key == "S":
359
 
            self.proxy.Set(client_interface, "CheckerRunning",
360
 
                           dbus.Boolean(False), ignore_reply=True,
361
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
362
 
        elif key == "C":
363
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
364
 
                                 ignore_reply=True)
 
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)
365
379
        # xxx
366
 
#         elif key == "p" or key == "=":
 
380
#         elif key == u"p" or key == "=":
367
381
#             self.proxy.pause()
368
 
#         elif key == "u" or key == ":":
 
382
#         elif key == u"u" or key == ":":
369
383
#             self.proxy.unpause()
370
 
#         elif key == "RET":
 
384
#         elif key == u"RET":
371
385
#             self.open()
372
386
        else:
373
387
            return key
374
 
 
375
 
    def properties_changed(self, interface, properties, invalidated):
376
 
        """Call self.update() if any properties changed.
 
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
392
        This overrides the method from MandosClientPropertyCache"""
378
 
        old_values = {key: self.properties.get(key)
379
 
                      for key in properties.keys()}
380
 
        super(MandosClientWidget, self).properties_changed(
381
 
            interface, properties, invalidated)
382
 
        if any(old_values[key] != self.properties.get(key)
383
 
               for key in old_values):
 
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:
384
398
            self.update()
385
399
 
386
400
 
387
 
def glib_safely(func, retval=True):
388
 
    def safe_func(*args, **kwargs):
389
 
        try:
390
 
            return func(*args, **kwargs)
391
 
        except Exception:
392
 
            log.exception("")
393
 
            return retval
394
 
    return safe_func
395
 
 
396
 
 
397
401
class ConstrainedListBox(urwid.ListBox):
398
402
    """Like a normal urwid.ListBox, but will consume all "up" or
399
403
    "down" key presses, thus not allowing any containing widgets to
400
404
    use them as an excuse to shift focus away from this widget.
401
405
    """
402
 
    def keypress(self, *args, **kwargs):
403
 
        ret = (super(ConstrainedListBox, self)
404
 
               .keypress(*args, **kwargs))
405
 
        if ret in ("up", "down"):
 
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"):
406
410
            return
407
411
        return ret
408
412
 
409
413
 
410
 
class UserInterface:
 
414
class UserInterface(object):
411
415
    """This is the entire user interface - the whole screen
412
416
    with boxes, lists of client widgets, etc.
413
417
    """
414
418
    def __init__(self, max_log_length=1000):
415
419
        DBusGMainLoop(set_as_default=True)
416
 
 
 
420
        
417
421
        self.screen = urwid.curses_display.Screen()
418
 
 
 
422
        
419
423
        self.screen.register_palette((
420
 
                ("normal",
421
 
                 "default", "default", None),
422
 
                ("bold",
423
 
                 "bold", "default", "bold"),
424
 
                ("underline-blink",
425
 
                 "underline,blink", "default", "underline,blink"),
426
 
                ("standout",
427
 
                 "standout", "default", "standout"),
428
 
                ("bold-underline-blink",
429
 
                 "bold,underline,blink", "default",
430
 
                 "bold,underline,blink"),
431
 
                ("bold-standout",
432
 
                 "bold,standout", "default", "bold,standout"),
433
 
                ("underline-blink-standout",
434
 
                 "underline,blink,standout", "default",
435
 
                 "underline,blink,standout"),
436
 
                ("bold-underline-blink-standout",
437
 
                 "bold,underline,blink,standout", "default",
438
 
                 "bold,underline,blink,standout"),
 
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")),
439
441
                ))
440
 
 
 
442
        
441
443
        if urwid.supports_unicode():
442
 
            self.divider = "─"  # \u2500
 
444
            self.divider = u"─" # \u2500
 
445
            #self.divider = u"━" # \u2501
443
446
        else:
444
 
            self.divider = "_"  # \u005f
445
 
 
 
447
            #self.divider = u"-" # \u002d
 
448
            self.divider = u"_" # \u005f
 
449
        
446
450
        self.screen.start()
447
 
 
 
451
        
448
452
        self.size = self.screen.get_cols_rows()
449
 
 
 
453
        
450
454
        self.clients = urwid.SimpleListWalker([])
451
455
        self.clients_dict = {}
452
 
 
 
456
        
453
457
        # We will add Text widgets to this list
454
 
        self.log = urwid.SimpleListWalker([])
 
458
        self.log = []
455
459
        self.max_log_length = max_log_length
456
 
 
 
460
        
457
461
        # We keep a reference to the log widget so we can remove it
458
462
        # from the ListWalker without it getting destroyed
459
463
        self.logbox = ConstrainedListBox(self.log)
460
 
 
 
464
        
461
465
        # This keeps track of whether self.uilist currently has
462
466
        # self.logbox in it or not
463
467
        self.log_visible = True
464
 
        self.log_wrap = "any"
465
 
 
466
 
        self.loghandler = UILogHandler(self)
467
 
 
 
468
        self.log_wrap = u"any"
 
469
        
468
470
        self.rebuild()
469
 
        self.add_log_line(("bold",
470
 
                           "Mandos Monitor version " + version))
471
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
472
 
 
473
 
        self.busname = domain + ".Mandos"
474
 
        self.main_loop = GLib.MainLoop()
475
 
 
476
 
    def client_not_found(self, key_id, address):
477
 
        log.info("Client with address %s and key ID %s could"
478
 
                 " not be found", address, key_id)
479
 
 
 
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
        
 
476
        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
    
 
521
    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
    
480
526
    def rebuild(self):
481
527
        """This rebuilds the User Interface.
482
528
        Call this when the widget layout needs to change"""
483
529
        self.uilist = []
484
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
530
        #self.uilist.append(urwid.ListBox(self.clients))
485
531
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
486
532
                                                          clients),
487
 
                                       # header=urwid.Divider(),
 
533
                                       #header=urwid.Divider(),
488
534
                                       header=None,
489
 
                                       footer=urwid.Divider(
490
 
                                           div_char=self.divider)))
 
535
                                       footer=
 
536
                                       urwid.Divider(div_char=
 
537
                                                     self.divider)))
491
538
        if self.log_visible:
492
539
            self.uilist.append(self.logbox)
 
540
            pass
493
541
        self.topwidget = urwid.Pile(self.uilist)
494
 
 
495
 
    def add_log_line(self, markup):
 
542
    
 
543
    def log_message(self, message):
 
544
        timestamp = datetime.datetime.now().isoformat()
 
545
        self.log_message_raw(timestamp + u": " + message)
 
546
    
 
547
    def log_message_raw(self, markup):
 
548
        """Add a log message to the log buffer."""
496
549
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
497
 
        if self.max_log_length:
498
 
            if len(self.log) > self.max_log_length:
499
 
                del self.log[0:(len(self.log) - self.max_log_length)]
500
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
501
 
                              coming_from="above")
 
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]
 
553
        self.logbox.set_focus(len(self.logbox.body.contents),
 
554
                              coming_from=u"above")
502
555
        self.refresh()
503
 
 
 
556
    
504
557
    def toggle_log_display(self):
505
558
        """Toggle visibility of the log buffer."""
506
559
        self.log_visible = not self.log_visible
507
560
        self.rebuild()
508
 
        log.debug("Log visibility changed to: %s", self.log_visible)
509
 
 
 
561
        #self.log_message(u"Log visibility changed to: "
 
562
        #                 + unicode(self.log_visible))
 
563
    
510
564
    def change_log_display(self):
511
565
        """Change type of log display.
512
566
        Currently, this toggles wrapping of text lines."""
513
 
        if self.log_wrap == "clip":
514
 
            self.log_wrap = "any"
 
567
        if self.log_wrap == u"clip":
 
568
            self.log_wrap = u"any"
515
569
        else:
516
 
            self.log_wrap = "clip"
 
570
            self.log_wrap = u"clip"
517
571
        for textwidget in self.log:
518
572
            textwidget.set_wrap_mode(self.log_wrap)
519
 
        log.debug("Wrap mode: %s", self.log_wrap)
520
 
 
521
 
    def find_and_remove_client(self, path, interfaces):
522
 
        """Find a client by its object path and remove it.
523
 
 
524
 
        This is connected to the InterfacesRemoved signal from the
 
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
525
579
        Mandos server object."""
526
 
        if client_interface not in interfaces:
527
 
            # Not a Mandos client object; ignore
528
 
            return
529
580
        try:
530
581
            client = self.clients_dict[path]
531
582
        except KeyError:
532
583
            # not found?
533
 
            log.warning("Unknown client %s removed", path)
534
 
            return
535
 
        client.delete()
536
 
 
537
 
    def add_new_client(self, path, ifs_and_props):
538
 
        """Find a client by its object path and remove it.
539
 
 
540
 
        This is connected to the InterfacesAdded signal from the
541
 
        Mandos server object.
542
 
        """
543
 
        if client_interface not in ifs_and_props:
544
 
            # Not a Mandos client object; ignore
545
 
            return
 
584
            return
 
585
        self.remove_client(client, path)
 
586
    
 
587
    def add_new_client(self, path):
546
588
        client_proxy_object = self.bus.get_object(self.busname, path)
547
 
        self.add_client(MandosClientWidget(
548
 
            server_proxy_object=self.mandos_serv,
549
 
            proxy_object=client_proxy_object,
550
 
            update_hook=self.refresh,
551
 
            delete_hook=self.remove_client,
552
 
            properties=dict(ifs_and_props[client_interface])),
 
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),
553
599
                        path=path)
554
 
 
 
600
    
555
601
    def add_client(self, client, path=None):
556
602
        self.clients.append(client)
557
603
        if path is None:
558
604
            path = client.proxy.object_path
559
605
        self.clients_dict[path] = client
560
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
606
        self.clients.sort(None, lambda c: c.properties[u"Name"])
561
607
        self.refresh()
562
 
 
 
608
    
563
609
    def remove_client(self, client, path=None):
564
610
        self.clients.remove(client)
565
611
        if path is None:
566
612
            path = client.proxy.object_path
567
613
        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()
568
619
        self.refresh()
569
 
 
 
620
    
570
621
    def refresh(self):
571
622
        """Redraw the screen"""
572
623
        canvas = self.topwidget.render(self.size, focus=True)
573
624
        self.screen.draw_screen(self.size, canvas)
574
 
 
 
625
    
575
626
    def run(self):
576
627
        """Start the main loop and exit when it's done."""
577
 
        log.addHandler(self.loghandler)
578
 
        self.orig_log_propagate = log.propagate
579
 
        log.propagate = False
580
 
        self.orig_log_level = log.level
581
 
        log.setLevel("INFO")
582
 
        self.bus = dbus.SystemBus()
583
 
        mandos_dbus_objc = self.bus.get_object(
584
 
            self.busname, "/", follow_name_owner_changes=True)
585
 
        self.mandos_serv = dbus.Interface(
586
 
            mandos_dbus_objc, dbus_interface=server_interface)
587
 
        try:
588
 
            mandos_clients = (self.mandos_serv
589
 
                              .GetAllClientsWithProperties())
590
 
            if not mandos_clients:
591
 
                log.warning("Note: Server has no clients.")
592
 
        except dbus.exceptions.DBusException:
593
 
            log.warning("Note: No Mandos server running.")
594
 
            mandos_clients = dbus.Dictionary()
595
 
 
596
 
        (self.mandos_serv
597
 
         .connect_to_signal("InterfacesRemoved",
598
 
                            self.find_and_remove_client,
599
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
600
 
                            byte_arrays=True))
601
 
        (self.mandos_serv
602
 
         .connect_to_signal("InterfacesAdded",
603
 
                            self.add_new_client,
604
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
605
 
                            byte_arrays=True))
606
 
        (self.mandos_serv
607
 
         .connect_to_signal("ClientNotFound",
608
 
                            self.client_not_found,
609
 
                            dbus_interface=server_interface,
610
 
                            byte_arrays=True))
611
 
        for path, client in mandos_clients.items():
612
 
            client_proxy_object = self.bus.get_object(self.busname,
613
 
                                                      path)
614
 
            self.add_client(MandosClientWidget(
615
 
                server_proxy_object=self.mandos_serv,
616
 
                proxy_object=client_proxy_object,
617
 
                properties=client,
618
 
                update_hook=self.refresh,
619
 
                delete_hook=self.remove_client),
620
 
                            path=path)
621
 
 
622
628
        self.refresh()
623
 
        self._input_callback_tag = (
624
 
            GLib.io_add_watch(
625
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
626
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
627
 
                glib_safely(self.process_input)))
 
629
        self._input_callback_tag = (gobject.io_add_watch
 
630
                                    (sys.stdin.fileno(),
 
631
                                     gobject.IO_IN,
 
632
                                     self.process_input))
628
633
        self.main_loop.run()
629
634
        # Main loop has finished, we should close everything now
630
 
        GLib.source_remove(self._input_callback_tag)
631
 
        with warnings.catch_warnings():
632
 
            warnings.simplefilter("ignore", BytesWarning)
633
 
            self.screen.stop()
634
 
 
 
635
        gobject.source_remove(self._input_callback_tag)
 
636
        self.screen.stop()
 
637
    
635
638
    def stop(self):
636
639
        self.main_loop.quit()
637
 
        log.removeHandler(self.loghandler)
638
 
        log.propagate = self.orig_log_propagate
639
 
 
 
640
    
640
641
    def process_input(self, source, condition):
641
642
        keys = self.screen.get_input()
642
 
        translations = {"ctrl n": "down",       # Emacs
643
 
                        "ctrl p": "up",         # Emacs
644
 
                        "ctrl v": "page down",  # Emacs
645
 
                        "meta v": "page up",    # Emacs
646
 
                        " ": "page down",       # less
647
 
                        "f": "page down",       # less
648
 
                        "b": "page up",         # less
649
 
                        "j": "down",            # vi
650
 
                        "k": "up",              # vi
651
 
                        }
 
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
                         }
652
653
        for key in keys:
653
654
            try:
654
655
                key = translations[key]
655
656
            except KeyError:    # :-)
656
657
                pass
657
 
 
658
 
            if key == "q" or key == "Q":
 
658
            
 
659
            if key == u"q" or key == u"Q":
659
660
                self.stop()
660
661
                break
661
 
            elif key == "window resize":
 
662
            elif key == u"window resize":
662
663
                self.size = self.screen.get_cols_rows()
663
664
                self.refresh()
664
 
            elif key == "ctrl l":
665
 
                self.screen.clear()
 
665
            elif key == u"\f":  # Ctrl-L
666
666
                self.refresh()
667
 
            elif key == "l" or key == "D":
 
667
            elif key == u"l" or key == u"D":
668
668
                self.toggle_log_display()
669
669
                self.refresh()
670
 
            elif key == "w" or key == "i":
 
670
            elif key == u"w" or key == u"i":
671
671
                self.change_log_display()
672
672
                self.refresh()
673
 
            elif key == "?" or key == "f1" or key == "esc":
 
673
            elif key == u"?" or key == u"f1" or key == u"esc":
674
674
                if not self.log_visible:
675
675
                    self.log_visible = True
676
676
                    self.rebuild()
677
 
                self.add_log_line(("bold",
678
 
                                   "  ".join(("q: Quit",
679
 
                                              "?: Help",
680
 
                                              "l: Log window toggle",
681
 
                                              "TAB: Switch window",
682
 
                                              "w: Wrap (log lines)",
683
 
                                              "v: Toggle verbose log",
684
 
                                   ))))
685
 
                self.add_log_line(("bold",
686
 
                                   "  ".join(("Clients:",
687
 
                                              "+: Enable",
688
 
                                              "-: Disable",
689
 
                                              "R: Remove",
690
 
                                              "s: Start new checker",
691
 
                                              "S: Stop checker",
692
 
                                              "C: Checker OK",
693
 
                                              "a: Approve",
694
 
                                              "d: Deny",
695
 
                                   ))))
 
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"))))
696
695
                self.refresh()
697
 
            elif key == "tab":
 
696
            elif key == u"tab":
698
697
                if self.topwidget.get_focus() is self.logbox:
699
698
                    self.topwidget.set_focus(0)
700
699
                else:
701
700
                    self.topwidget.set_focus(self.logbox)
702
701
                self.refresh()
703
 
            elif key == "v":
704
 
                if log.level < logging.INFO:
705
 
                    log.setLevel(logging.INFO)
706
 
                    log.info("Verbose mode: Off")
707
 
                else:
708
 
                    log.setLevel(logging.NOTSET)
709
 
                    log.info("Verbose mode: On")
710
 
            # elif (key == "end" or key == "meta >" or key == "G"
711
 
            #       or key == ">"):
712
 
            #     pass            # xxx end-of-buffer
713
 
            # elif (key == "home" or key == "meta <" or key == "g"
714
 
            #       or key == "<"):
715
 
            #     pass            # xxx beginning-of-buffer
716
 
            # elif key == "ctrl e" or key == "$":
717
 
            #     pass            # xxx move-end-of-line
718
 
            # elif key == "ctrl a" or key == "^":
719
 
            #     pass            # xxx move-beginning-of-line
720
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
721
 
            #     pass            # xxx left
722
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
723
 
            #     pass            # xxx right
724
 
            # elif key == "a":
725
 
            #     pass            # scroll up log
726
 
            # elif key == "z":
727
 
            #     pass            # scroll down log
 
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
728
720
            elif self.topwidget.selectable():
729
721
                self.topwidget.keypress(self.size, key)
730
722
                self.refresh()
731
723
        return True
732
724
 
733
 
 
734
 
class UILogHandler(logging.Handler):
735
 
    def __init__(self, ui, *args, **kwargs):
736
 
        self.ui = ui
737
 
        super(UILogHandler, self).__init__(*args, **kwargs)
738
 
        self.setFormatter(
739
 
            logging.Formatter("%(asctime)s: %(message)s"))
740
 
    def emit(self, record):
741
 
        msg = self.format(record)
742
 
        if record.levelno > logging.INFO:
743
 
            msg = ("bold", msg)
744
 
        self.ui.add_log_line(msg)
745
 
 
746
 
 
747
725
ui = UserInterface()
748
726
try:
749
727
    ui.run()
750
728
except KeyboardInterrupt:
751
 
    with warnings.catch_warnings():
752
 
        warnings.filterwarnings("ignore", "", BytesWarning)
753
 
        ui.screen.stop()
754
 
except Exception:
755
 
    with warnings.catch_warnings():
756
 
        warnings.filterwarnings("ignore", "", BytesWarning)
757
 
        ui.screen.stop()
 
729
    ui.screen.stop()
 
730
except Exception, e:
 
731
    ui.log_message(unicode(e))
 
732
    ui.screen.stop()
758
733
    raise