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#!/usr/bin/python3 -bbI
 
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# -*- mode: python; coding: utf-8 -*-
 
 
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# Mandos Monitor - Control and monitor the Mandos server
 
 
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# Copyright © 2009-2019 Teddy Hogeborn
 
 
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# Copyright © 2009-2019 Björn Påhlsson
 
 
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# This file is part of Mandos.
 
 
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# Mandos is free software: you can redistribute it and/or modify it
 
 
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# under the terms of the GNU General Public License as published by
 
 
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# the Free Software Foundation, either version 3 of the License, or
 
 
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# (at your option) any later version.
 
 
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#     Mandos is distributed in the hope that it will be useful, but
 
 
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#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
 
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#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
 
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#     GNU General Public License for more details.
 
 
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# You should have received a copy of the GNU General Public License
 
 
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# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
 
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# Contact the authors at <mandos@recompile.se>.
 
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from __future__ import division, absolute_import, with_statement
 
 
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from __future__ import (division, absolute_import, print_function,
 
 
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    from future_builtins import *
 
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import urwid.curses_display
 
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from dbus.mainloop.glib import DBusGMainLoop
 
 
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from gi.repository import GLib
 
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locale.setlocale(locale.LC_ALL, u'')
 
 
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if sys.version_info.major == 2:
 
 
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log = logging.getLogger(os.path.basename(sys.argv[0]))
 
 
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logging.basicConfig(level="NOTSET", # Show all messages
 
 
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                    format="%(message)s") # Show basic log messages
 
 
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logging.captureWarnings(True)   # Show warnings via the logging system
 
 
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locale.setlocale(locale.LC_ALL, "")
 
 
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logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
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# Some useful constants
 
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domain = 'se.bsnet.fukt'
 
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server_interface = domain + '.Mandos'
 
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client_interface = domain + '.Mandos.Client'
 
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# Always run in monochrome mode
 
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urwid.curses_display.curses.has_colors = lambda : False
 
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# Urwid doesn't support blinking, but we want it.  Since we have no
 
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# use for underline on its own, we make underline also always blink.
 
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urwid.curses_display.curses.A_UNDERLINE |= (
 
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    urwid.curses_display.curses.A_BLINK)
 
 
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domain = "se.recompile"
 
 
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server_interface = domain + ".Mandos"
 
 
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client_interface = domain + ".Mandos.Client"
 
 
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    dbus.OBJECT_MANAGER_IFACE
 
 
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except AttributeError:
 
 
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    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
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def isoformat_to_datetime(iso):
 
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    "Parse an ISO 8601 date string to a datetime.datetime()"
 
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    d, t = iso.split(u"T", 1)
 
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    year, month, day = d.split(u"-", 2)
 
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    hour, minute, second = t.split(u":", 2)
 
 
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    d, t = iso.split("T", 1)
 
 
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    year, month, day = d.split("-", 2)
 
 
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    hour, minute, second = t.split(":", 2)
 
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    second, fraction = divmod(float(second), 1)
 
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    return datetime.datetime(int(year),
 
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                             int(second),           # Whole seconds
 
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                             int(fraction*1000000)) # Microseconds
 
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class MandosClientPropertyCache(object):
 
 
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                             int(second),            # Whole seconds
 
 
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                             int(fraction*1000000))  # Microseconds
 
 
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class MandosClientPropertyCache:
 
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    """This wraps a Mandos Client D-Bus proxy object, caches the
 
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    properties and calls a hook function when any of them are
 
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    def __init__(self, proxy_object=None, *args, **kwargs):
 
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        self.proxy = proxy_object # Mandos Client proxy object
 
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        self.properties = dict()
 
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        self.proxy.connect_to_signal(u"PropertyChanged",
 
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                                     self.property_changed,
 
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        self.properties.update(
 
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            self.proxy.GetAll(client_interface,
 
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                              dbus_interface = dbus.PROPERTIES_IFACE))
 
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        super(MandosClientPropertyCache, self).__init__(
 
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            proxy_object=proxy_object, *args, **kwargs)
 
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    def property_changed(self, property=None, value=None):
 
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        """This is called whenever we get a PropertyChanged signal
 
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        It updates the changed property in the "properties" dict.
 
 
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    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
 
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        self.proxy = proxy_object  # Mandos Client proxy object
 
 
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        self.properties = dict() if properties is None else properties
 
 
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        self.property_changed_match = (
 
 
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            self.proxy.connect_to_signal("PropertiesChanged",
 
 
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                                         self.properties_changed,
 
 
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                                         dbus.PROPERTIES_IFACE,
 
 
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        if properties is None:
 
 
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            self.properties.update(self.proxy.GetAll(
 
 
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                dbus_interface=dbus.PROPERTIES_IFACE))
 
 
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        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
 
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    def properties_changed(self, interface, properties, invalidated):
 
 
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        """This is called whenever we get a PropertiesChanged signal
 
 
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        It updates the changed properties in the "properties" dict.
 
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        # Update properties dict with new value
 
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        self.properties[property] = value
 
 
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        if interface == client_interface:
 
 
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            self.properties.update(properties)
 
 
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        self.property_changed_match.remove()
 
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class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
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    """A Mandos Client which is visible on the screen.
 
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    def __init__(self, server_proxy_object=None, update_hook=None,
 
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                 delete_hook=None, logger=None, *args, **kwargs):
 
 
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                 delete_hook=None, **kwargs):
 
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        # Called on update
 
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        self.update_hook = update_hook
 
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        # Called on delete
 
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        self.delete_hook = delete_hook
 
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        # Mandos Server proxy object
 
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        self.server_proxy_object = server_proxy_object
 
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        self._update_timer_callback_tag = None
 
100
 
        self.last_checker_failed = False
 
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        # The widget shown normally
 
103
 
        self._text_widget = urwid.Text(u"")
 
 
141
        self._text_widget = urwid.Text("")
 
104
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        # The widget shown when we have focus
 
105
 
        self._focus_text_widget = urwid.Text(u"")
 
106
 
        super(MandosClientWidget, self).__init__(
 
107
 
            update_hook=update_hook, delete_hook=delete_hook,
 
 
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        self._focus_text_widget = urwid.Text("")
 
 
144
        super(MandosClientWidget, self).__init__(**kwargs)
 
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        self.opened = False
 
111
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
112
 
                                     self.checker_completed,
 
115
 
        self.proxy.connect_to_signal(u"CheckerStarted",
 
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                                     self.checker_started,
 
119
 
        self.proxy.connect_to_signal(u"GotSecret",
 
123
 
        self.proxy.connect_to_signal(u"Rejected",
 
127
 
        last_checked_ok = isoformat_to_datetime(self.properties
 
129
 
        if last_checked_ok is None:
 
130
 
            self.last_checker_failed = True
 
132
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
136
 
                                         self.properties["interval"]))
 
137
 
        if self.last_checker_failed:
 
138
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
 
148
        self.match_objects = (
 
 
149
            self.proxy.connect_to_signal("CheckerCompleted",
 
 
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                                         self.checker_completed,
 
 
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            self.proxy.connect_to_signal("CheckerStarted",
 
 
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                                         self.checker_started,
 
 
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            self.proxy.connect_to_signal("GotSecret",
 
 
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            self.proxy.connect_to_signal("NeedApproval",
 
 
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            self.proxy.connect_to_signal("Rejected",
 
 
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        log.debug("Created client %s", self.properties["Name"])
 
 
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    def using_timer(self, flag):
 
 
172
        """Call this method with True or False when timer should be
 
 
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        activated or deactivated.
 
 
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        if flag and self._update_timer_callback_tag is None:
 
 
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            # Will update the shown timer value every second
 
 
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            self._update_timer_callback_tag = (
 
 
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                GLib.timeout_add(1000,
 
 
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                                 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)
 
 
182
            self._update_timer_callback_tag = None
 
142
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    def checker_completed(self, exitstatus, condition, command):
 
143
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        if exitstatus == 0:
 
144
 
            if self.last_checker_failed:
 
145
 
                self.last_checker_failed = False
 
146
 
                gobject.source_remove(self._update_timer_callback_tag)
 
147
 
                self._update_timer_callback_tag = None
 
148
 
            self.logger(u'Checker for client %s (command "%s")'
 
150
 
                        % (self.properties[u"name"], command))
 
 
186
            log.debug('Checker for client %s (command "%s")'
 
 
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                      " succeeded", self.properties["Name"], command)
 
154
 
        if not self.last_checker_failed:
 
155
 
            self.last_checker_failed = True
 
156
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
159
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        if os.WIFEXITED(condition):
 
160
 
            self.logger(u'Checker for client %s (command "%s")'
 
161
 
                        u' failed with exit code %s'
 
162
 
                        % (self.properties[u"name"], command,
 
163
 
                           os.WEXITSTATUS(condition)))
 
 
192
            log.info('Checker for client %s (command "%s") failed'
 
 
193
                     " with exit code %d", self.properties["Name"],
 
 
194
                     command, os.WEXITSTATUS(condition))
 
164
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        elif os.WIFSIGNALED(condition):
 
165
 
            self.logger(u'Checker for client %s (command "%s")'
 
166
 
                        u' was killed by signal %s'
 
167
 
                        % (self.properties[u"name"], command,
 
168
 
                           os.WTERMSIG(condition)))
 
169
 
        elif os.WCOREDUMP(condition):
 
170
 
            self.logger(u'Checker for client %s (command "%s")'
 
172
 
                        % (self.properties[u"name"], command))
 
174
 
            self.logger(u'Checker for client %s completed mysteriously')
 
 
196
            log.info('Checker for client %s (command "%s") was'
 
 
197
                     " killed by signal %d", self.properties["Name"],
 
 
198
                     command, os.WTERMSIG(condition))
 
177
201
    def checker_started(self, command):
 
178
 
        self.logger(u'Client %s started checker "%s"'
 
179
 
                    % (self.properties[u"name"], unicode(command)))
 
 
202
        """Server signals that a checker started."""
 
 
203
        log.debug('Client %s started checker "%s"',
 
 
204
                  self.properties["Name"], command)
 
181
206
    def got_secret(self):
 
182
 
        self.logger(u'Client %s received its secret'
 
183
 
                    % self.properties[u"name"])
 
186
 
        self.logger(u'Client %s was rejected'
 
187
 
                    % self.properties[u"name"])
 
 
207
        log.info("Client %s received its secret",
 
 
208
                 self.properties["Name"])
 
 
210
    def need_approval(self, timeout, default):
 
 
212
            message = "Client %s needs approval within %f seconds"
 
 
214
            message = "Client %s will get its secret in %f seconds"
 
 
215
        log.info(message, self.properties["Name"], timeout/1000)
 
 
217
    def rejected(self, reason):
 
 
218
        log.info("Client %s was rejected; reason: %s",
 
 
219
                 self.properties["Name"], reason)
 
189
221
    def selectable(self):
 
190
222
        """Make this a "selectable" widget.
 
191
223
        This overrides the method from urwid.FlowWidget."""
 
194
 
    def rows(self, (maxcol,), focus=False):
 
 
226
    def rows(self, maxcolrow, focus=False):
 
195
227
        """How many rows this widget will occupy might depend on
 
196
228
        whether we have focus or not.
 
197
229
        This overrides the method from urwid.FlowWidget"""
 
198
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
 
230
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
200
232
    def current_widget(self, focus=False):
 
201
233
        if focus or self.opened:
 
202
234
            return self._focus_widget
 
203
235
        return self._widget
 
205
237
    def update(self):
 
206
238
        "Called when what is visible on the screen should be updated."
 
207
239
        # How to add standout mode to a style
 
208
 
        with_standout = { u"normal": u"standout",
 
209
 
                          u"bold": u"bold-standout",
 
211
 
                              u"underline-blink-standout",
 
212
 
                          u"bold-underline-blink":
 
213
 
                              u"bold-underline-blink-standout",
 
 
240
        with_standout = {"normal": "standout",
 
 
241
                         "bold": "bold-standout",
 
 
243
                         "underline-blink-standout",
 
 
244
                         "bold-underline-blink":
 
 
245
                         "bold-underline-blink-standout",
 
216
248
        # Rebuild focus and non-focus widgets using current properties
 
217
 
        self._text = (u'%(name)s: %(enabled)s%(timer)s'
 
218
 
                      % { u"name": self.properties[u"name"],
 
221
 
                               if self.properties[u"enabled"]
 
223
 
                          u"timer": (unicode(datetime.timedelta
 
229
 
                                                - isoformat_to_datetime
 
230
 
                                                (max((self.properties
 
235
 
                                                    self.properties[u"last_enabled"]))))
 
236
 
                                     if (self.last_checker_failed
 
 
250
        # Base part of a client. Name!
 
 
251
        base = "{name}: ".format(name=self.properties["Name"])
 
 
252
        if not self.properties["Enabled"]:
 
 
254
            self.using_timer(False)
 
 
255
        elif self.properties["ApprovalPending"]:
 
 
256
            timeout = datetime.timedelta(
 
 
257
                milliseconds=self.properties["ApprovalDelay"])
 
 
258
            last_approval_request = isoformat_to_datetime(
 
 
259
                self.properties["LastApprovalRequest"])
 
 
260
            if last_approval_request is not None:
 
 
261
                timer = max(timeout - (datetime.datetime.utcnow()
 
 
262
                                       - last_approval_request),
 
 
263
                            datetime.timedelta())
 
 
265
                timer = datetime.timedelta()
 
 
266
            if self.properties["ApprovedByDefault"]:
 
 
267
                message = "Approval in {}. (d)eny?"
 
 
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"]
 
 
276
                timer = datetime.timedelta(0)
 
 
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"
 
 
284
                       .format(str(timer).rsplit(".", 1)[0]))
 
 
285
            self.using_timer(True)
 
 
288
            self.using_timer(False)
 
 
289
        self._text = "{}{}".format(base, message)
 
240
291
        if not urwid.supports_unicode():
 
241
292
            self._text = self._text.encode("ascii", "replace")
 
242
 
        textlist = [(u"normal", self._text)]
 
 
293
        textlist = [("normal", self._text)]
 
243
294
        self._text_widget.set_text(textlist)
 
244
295
        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
252
303
        # Run update hook, if any
 
253
304
        if self.update_hook is not None:
 
254
305
            self.update_hook()
 
256
307
    def update_timer(self):
 
 
308
        """called by GLib. Will indefinitely loop until
 
 
309
        GLib.source_remove() on tag is called
 
259
312
        return True             # Keep calling this
 
 
314
    def delete(self, **kwargs):
 
262
315
        if self._update_timer_callback_tag is not None:
 
263
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
316
            GLib.source_remove(self._update_timer_callback_tag)
 
264
317
            self._update_timer_callback_tag = None
 
 
318
        for match in self.match_objects:
 
 
320
        self.match_objects = ()
 
265
321
        if self.delete_hook is not None:
 
266
322
            self.delete_hook(self)
 
268
 
    def render(self, (maxcol,), focus=False):
 
 
323
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
325
    def render(self, maxcolrow, focus=False):
 
269
326
        """Render differently if we have focus.
 
270
327
        This overrides the method from urwid.FlowWidget"""
 
271
 
        return self.current_widget(focus).render((maxcol,),
 
 
328
        return self.current_widget(focus).render(maxcolrow,
 
274
 
    def keypress(self, (maxcol,), key):
 
 
331
    def keypress(self, maxcolrow, key):
 
276
333
        This overrides the method from urwid.FlowWidget"""
 
277
 
        if key == u"e" or key == u"+":
 
279
 
        elif key == u"d" or key == u"-":
 
281
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
 
335
            self.proxy.Set(client_interface, "Enabled",
 
 
336
                           dbus.Boolean(True), ignore_reply=True,
 
 
337
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
339
            self.proxy.Set(client_interface, "Enabled", False,
 
 
341
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
343
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
 
344
                               dbus_interface=client_interface,
 
 
347
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
 
348
                               dbus_interface=client_interface,
 
 
350
        elif key == "R" or key == "_" or key == "ctrl k":
 
282
351
            self.server_proxy_object.RemoveClient(self.proxy
 
285
 
            self.proxy.StartChecker()
 
287
 
            self.proxy.StopChecker()
 
289
 
            self.proxy.CheckedOK()
 
 
355
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
356
                           dbus.Boolean(True), ignore_reply=True,
 
 
357
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
359
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
360
                           dbus.Boolean(False), ignore_reply=True,
 
 
361
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
363
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
291
 
#         elif key == u"p" or key == "=":
 
 
366
#         elif key == "p" or key == "=":
 
292
367
#             self.proxy.pause()
 
293
 
#         elif key == u"u" or key == ":":
 
 
368
#         elif key == "u" or key == ":":
 
294
369
#             self.proxy.unpause()
 
295
 
#         elif key == u"RET":
 
300
 
    def property_changed(self, property=None, value=None,
 
302
 
        """Call self.update() if old value is not new value.
 
 
375
    def properties_changed(self, interface, properties, invalidated):
 
 
376
        """Call self.update() if any properties changed.
 
303
377
        This overrides the method from MandosClientPropertyCache"""
 
304
 
        property_name = unicode(property)
 
305
 
        old_value = self.properties.get(property_name)
 
306
 
        super(MandosClientWidget, self).property_changed(
 
307
 
            property=property, value=value, *args, **kwargs)
 
308
 
        if self.properties.get(property_name) != old_value:
 
 
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):
 
 
387
def glib_safely(func, retval=True):
 
 
388
    def safe_func(*args, **kwargs):
 
 
390
            return func(*args, **kwargs)
 
312
397
class ConstrainedListBox(urwid.ListBox):
 
313
398
    """Like a normal urwid.ListBox, but will consume all "up" or
 
314
399
    "down" key presses, thus not allowing any containing widgets to
 
315
400
    use them as an excuse to shift focus away from this widget.
 
317
 
    def keypress(self, (maxcol, maxrow), key):
 
318
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
 
319
 
        if ret in (u"up", u"down"):
 
 
402
    def keypress(self, *args, **kwargs):
 
 
403
        ret = (super(ConstrainedListBox, self)
 
 
404
               .keypress(*args, **kwargs))
 
 
405
        if ret in ("up", "down"):
 
324
 
class UserInterface(object):
 
325
411
    """This is the entire user interface - the whole screen
 
326
412
    with boxes, lists of client widgets, etc.
 
328
414
    def __init__(self, max_log_length=1000):
 
329
415
        DBusGMainLoop(set_as_default=True)
 
331
417
        self.screen = urwid.curses_display.Screen()
 
333
419
        self.screen.register_palette((
 
335
 
                 u"default", u"default", None),
 
337
 
                 u"default", u"default", u"bold"),
 
339
 
                 u"default", u"default", u"underline"),
 
341
 
                 u"default", u"default", u"standout"),
 
342
 
                (u"bold-underline-blink",
 
343
 
                 u"default", u"default", (u"bold", u"underline")),
 
345
 
                 u"default", u"default", (u"bold", u"standout")),
 
346
 
                (u"underline-blink-standout",
 
347
 
                 u"default", u"default", (u"underline", u"standout")),
 
348
 
                (u"bold-underline-blink-standout",
 
349
 
                 u"default", u"default", (u"bold", u"underline",
 
 
421
                 "default", "default", None),
 
 
423
                 "bold", "default", "bold"),
 
 
425
                 "underline,blink", "default", "underline,blink"),
 
 
427
                 "standout", "default", "standout"),
 
 
428
                ("bold-underline-blink",
 
 
429
                 "bold,underline,blink", "default",
 
 
430
                 "bold,underline,blink"),
 
 
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"),
 
353
441
        if urwid.supports_unicode():
 
354
 
            self.divider = u"─" # \u2500
 
355
 
            #self.divider = u"━" # \u2501
 
 
442
            self.divider = "─"  # \u2500
 
357
 
            #self.divider = u"-" # \u002d
 
358
 
            self.divider = u"_" # \u005f
 
 
444
            self.divider = "_"  # \u005f
 
360
446
        self.screen.start()
 
362
448
        self.size = self.screen.get_cols_rows()
 
364
450
        self.clients = urwid.SimpleListWalker([])
 
365
451
        self.clients_dict = {}
 
367
453
        # We will add Text widgets to this list
 
 
454
        self.log = urwid.SimpleListWalker([])
 
369
455
        self.max_log_length = max_log_length
 
371
457
        # We keep a reference to the log widget so we can remove it
 
372
458
        # from the ListWalker without it getting destroyed
 
373
459
        self.logbox = ConstrainedListBox(self.log)
 
375
461
        # This keeps track of whether self.uilist currently has
 
376
462
        # self.logbox in it or not
 
377
463
        self.log_visible = True
 
378
 
        self.log_wrap = u"any"
 
 
464
        self.log_wrap = "any"
 
 
466
        self.loghandler = UILogHandler(self)
 
381
 
        self.log_message_raw((u"bold",
 
382
 
                              u"Mandos Monitor version " + version))
 
383
 
        self.log_message_raw((u"bold",
 
386
 
        self.busname = domain + '.Mandos'
 
387
 
        self.main_loop = gobject.MainLoop()
 
388
 
        self.bus = dbus.SystemBus()
 
389
 
        mandos_dbus_objc = self.bus.get_object(
 
390
 
            self.busname, u"/", follow_name_owner_changes=True)
 
391
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
395
 
            mandos_clients = (self.mandos_serv
 
396
 
                              .GetAllClientsWithProperties())
 
397
 
        except dbus.exceptions.DBusException:
 
398
 
            mandos_clients = dbus.Dictionary()
 
401
 
         .connect_to_signal(u"ClientRemoved",
 
402
 
                            self.find_and_remove_client,
 
403
 
                            dbus_interface=server_interface,
 
406
 
         .connect_to_signal(u"ClientAdded",
 
408
 
                            dbus_interface=server_interface,
 
411
 
         .connect_to_signal(u"ClientNotFound",
 
412
 
                            self.client_not_found,
 
413
 
                            dbus_interface=server_interface,
 
415
 
        for path, client in mandos_clients.iteritems():
 
416
 
            client_proxy_object = self.bus.get_object(self.busname,
 
418
 
            self.add_client(MandosClientWidget(server_proxy_object
 
421
 
                                               =client_proxy_object,
 
431
 
    def client_not_found(self, fingerprint, address):
 
432
 
        self.log_message((u"Client with address %s and fingerprint %s"
 
433
 
                          u" could not be found" % (address,
 
 
469
        self.add_log_line(("bold",
 
 
470
                           "Mandos Monitor version " + version))
 
 
471
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
 
473
        self.busname = domain + ".Mandos"
 
 
474
        self.main_loop = GLib.MainLoop()
 
 
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)
 
436
480
    def rebuild(self):
 
437
481
        """This rebuilds the User Interface.
 
438
482
        Call this when the widget layout needs to change"""
 
440
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
441
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
442
 
                                       #header=urwid.Divider(),
 
 
484
        # self.uilist.append(urwid.ListBox(self.clients))
 
 
485
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
 
487
                                       # header=urwid.Divider(),
 
444
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
 
489
                                       footer=urwid.Divider(
 
 
490
                                           div_char=self.divider)))
 
445
491
        if self.log_visible:
 
446
492
            self.uilist.append(self.logbox)
 
448
493
        self.topwidget = urwid.Pile(self.uilist)
 
450
 
    def log_message(self, message):
 
451
 
        timestamp = datetime.datetime.now().isoformat()
 
452
 
        self.log_message_raw(timestamp + u": " + message)
 
454
 
    def log_message_raw(self, markup):
 
455
 
        """Add a log message to the log buffer."""
 
 
495
    def add_log_line(self, markup):
 
456
496
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
457
 
        if (self.max_log_length
 
458
 
            and len(self.log) > self.max_log_length):
 
459
 
            del self.log[0:len(self.log)-self.max_log_length-1]
 
460
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
461
 
                              coming_from=u"above")
 
 
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,
 
464
504
    def toggle_log_display(self):
 
465
505
        """Toggle visibility of the log buffer."""
 
466
506
        self.log_visible = not self.log_visible
 
468
 
        self.log_message(u"Log visibility changed to: "
 
469
 
                         + unicode(self.log_visible))
 
 
508
        log.debug("Log visibility changed to: %s", self.log_visible)
 
471
510
    def change_log_display(self):
 
472
511
        """Change type of log display.
 
473
512
        Currently, this toggles wrapping of text lines."""
 
474
 
        if self.log_wrap == u"clip":
 
475
 
            self.log_wrap = u"any"
 
 
513
        if self.log_wrap == "clip":
 
 
514
            self.log_wrap = "any"
 
477
 
            self.log_wrap = u"clip"
 
 
516
            self.log_wrap = "clip"
 
478
517
        for textwidget in self.log:
 
479
518
            textwidget.set_wrap_mode(self.log_wrap)
 
480
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
482
 
    def find_and_remove_client(self, path, name):
 
483
 
        """Find an client from its object path and remove it.
 
485
 
        This is connected to the ClientRemoved signal from the
 
 
519
        log.debug("Wrap mode: %s", self.log_wrap)
 
 
521
    def find_and_remove_client(self, path, interfaces):
 
 
522
        """Find a client by its object path and remove it.
 
 
524
        This is connected to the InterfacesRemoved signal from the
 
486
525
        Mandos server object."""
 
 
526
        if client_interface not in interfaces:
 
 
527
            # Not a Mandos client object; ignore
 
488
530
            client = self.clients_dict[path]
 
492
 
        self.remove_client(client, path)
 
494
 
    def add_new_client(self, path):
 
 
533
            log.warning("Unknown client %s removed", path)
 
 
537
    def add_new_client(self, path, ifs_and_props):
 
 
538
        """Find a client by its object path and remove it.
 
 
540
        This is connected to the InterfacesAdded signal from the
 
 
541
        Mandos server object.
 
 
543
        if client_interface not in ifs_and_props:
 
 
544
            # Not a Mandos client object; ignore
 
495
546
        client_proxy_object = self.bus.get_object(self.busname, path)
 
496
 
        self.add_client(MandosClientWidget(server_proxy_object
 
499
 
                                           =client_proxy_object,
 
 
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])),
 
508
555
    def add_client(self, client, path=None):
 
509
556
        self.clients.append(client)
 
511
558
            path = client.proxy.object_path
 
512
559
        self.clients_dict[path] = client
 
513
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
 
560
        self.clients.sort(key=lambda c: c.properties["Name"])
 
516
563
    def remove_client(self, client, path=None):
 
517
564
        self.clients.remove(client)
 
519
566
            path = client.proxy.object_path
 
520
567
        del self.clients_dict[path]
 
521
 
        if not self.clients_dict:
 
522
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
523
 
            # is completely emptied, we need to recreate it.
 
524
 
            self.clients = urwid.SimpleListWalker([])
 
528
570
    def refresh(self):
 
529
571
        """Redraw the screen"""
 
530
572
        canvas = self.topwidget.render(self.size, focus=True)
 
531
573
        self.screen.draw_screen(self.size, canvas)
 
534
576
        """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
 
 
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)
 
 
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()
 
 
597
         .connect_to_signal("InterfacesRemoved",
 
 
598
                            self.find_and_remove_client,
 
 
599
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
602
         .connect_to_signal("InterfacesAdded",
 
 
604
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
607
         .connect_to_signal("ClientNotFound",
 
 
608
                            self.client_not_found,
 
 
609
                            dbus_interface=server_interface,
 
 
611
        for path, client in mandos_clients.items():
 
 
612
            client_proxy_object = self.bus.get_object(self.busname,
 
 
614
            self.add_client(MandosClientWidget(
 
 
615
                server_proxy_object=self.mandos_serv,
 
 
616
                proxy_object=client_proxy_object,
 
 
618
                update_hook=self.refresh,
 
 
619
                delete_hook=self.remove_client),
 
536
 
        self._input_callback_tag = (gobject.io_add_watch
 
 
623
        self._input_callback_tag = (
 
 
625
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
 
626
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
 
627
                glib_safely(self.process_input)))
 
540
628
        self.main_loop.run()
 
541
629
        # Main loop has finished, we should close everything now
 
542
 
        gobject.source_remove(self._input_callback_tag)
 
 
630
        GLib.source_remove(self._input_callback_tag)
 
 
631
        with warnings.catch_warnings():
 
 
632
            warnings.simplefilter("ignore", BytesWarning)
 
546
636
        self.main_loop.quit()
 
 
637
        log.removeHandler(self.loghandler)
 
 
638
        log.propagate = self.orig_log_propagate
 
548
640
    def process_input(self, source, condition):
 
549
641
        keys = self.screen.get_input()
 
550
 
        translations = { u"ctrl n": u"down",      # Emacs
 
551
 
                         u"ctrl p": u"up",        # Emacs
 
552
 
                         u"ctrl v": u"page down", # Emacs
 
553
 
                         u"meta v": u"page up",   # Emacs
 
554
 
                         u" ": u"page down",      # less
 
555
 
                         u"f": u"page down",      # less
 
556
 
                         u"b": u"page up",        # less
 
 
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
 
562
654
                key = translations[key]
 
563
655
            except KeyError:    # :-)
 
566
 
            if key == u"q" or key == u"Q":
 
 
658
            if key == "q" or key == "Q":
 
569
 
            elif key == u"window resize":
 
 
661
            elif key == "window resize":
 
570
662
                self.size = self.screen.get_cols_rows()
 
572
 
            elif key == u"\f":  # Ctrl-L
 
 
664
            elif key == "ctrl l":
 
574
 
            elif key == u"l" or key == u"D":
 
 
667
            elif key == "l" or key == "D":
 
575
668
                self.toggle_log_display()
 
577
 
            elif key == u"w" or key == u"i":
 
 
670
            elif key == "w" or key == "i":
 
578
671
                self.change_log_display()
 
580
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
 
673
            elif key == "?" or key == "f1" or key == "esc":
 
581
674
                if not self.log_visible:
 
582
675
                    self.log_visible = True
 
584
 
                self.log_message_raw((u"bold",
 
588
 
                                            u"l: Log window toggle",
 
589
 
                                            u"TAB: Switch window",
 
591
 
                self.log_message_raw((u"bold",
 
597
 
                                             u"s: Start new checker",
 
 
677
                self.add_log_line(("bold",
 
 
680
                                              "l: Log window toggle",
 
 
681
                                              "TAB: Switch window",
 
 
682
                                              "w: Wrap (log lines)",
 
 
683
                                              "v: Toggle verbose log",
 
 
685
                self.add_log_line(("bold",
 
 
686
                                   "  ".join(("Clients:",
 
 
690
                                              "s: Start new checker",
 
602
698
                if self.topwidget.get_focus() is self.logbox:
 
603
699
                    self.topwidget.set_focus(0)
 
605
701
                    self.topwidget.set_focus(self.logbox)
 
607
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
609
 
            #    pass            # xxx end-of-buffer
 
610
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
612
 
            #    pass            # xxx beginning-of-buffer
 
613
 
            #elif key == u"ctrl e" or key == u"$":
 
614
 
            #    pass            # xxx move-end-of-line
 
615
 
            #elif key == u"ctrl a" or key == u"^":
 
616
 
            #    pass            # xxx move-beginning-of-line
 
617
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
619
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
622
 
            #    pass            # scroll up log
 
624
 
            #    pass            # scroll down log
 
 
704
                if log.level < logging.INFO:
 
 
705
                    log.setLevel(logging.INFO)
 
 
706
                    log.info("Verbose mode: Off")
 
 
708
                    log.setLevel(logging.NOTSET)
 
 
709
                    log.info("Verbose mode: On")
 
 
710
            # elif (key == "end" or key == "meta >" or key == "G"
 
 
712
            #     pass            # xxx end-of-buffer
 
 
713
            # elif (key == "home" or key == "meta <" or key == "g"
 
 
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":
 
 
722
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
 
725
            #     pass            # scroll up log
 
 
727
            #     pass            # scroll down log
 
625
728
            elif self.topwidget.selectable():
 
626
729
                self.topwidget.keypress(self.size, key)
 
 
734
class UILogHandler(logging.Handler):
 
 
735
    def __init__(self, ui, *args, **kwargs):
 
 
737
        super(UILogHandler, self).__init__(*args, **kwargs)
 
 
739
            logging.Formatter("%(asctime)s: %(message)s"))
 
 
740
    def emit(self, record):
 
 
741
        msg = self.format(record)
 
 
742
        if record.levelno > logging.INFO:
 
 
744
        self.ui.add_log_line(msg)
 
630
747
ui = UserInterface()
 
634
 
    ui.log_message(unicode(e))
 
 
750
except KeyboardInterrupt:
 
 
751
    with warnings.catch_warnings():
 
 
752
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
755
    with warnings.catch_warnings():
 
 
756
        warnings.filterwarnings("ignore", "", BytesWarning)