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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 © 2009-2011 Teddy Hogeborn
 
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# Copyright © 2009-2011 Björn Påhlsson
 
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# This program is free software: you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
 
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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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#     This program is distributed in the hope that it will be useful,
 
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#     but WITHOUT ANY WARRANTY; without even the implied warranty of
 
 
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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 this program.  If not, see <http://www.gnu.org/licenses/>.
 
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# Contact the authors at <mandos@fukt.bsnet.se>.
 
 
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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, print_function, unicode_literals
 
 
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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, '')
 
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logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
 
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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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                             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("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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        #XXX This break good super behaviour!
 
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#        super(MandosClientPropertyCache, self).__init__(
 
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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
 
126
 
        self._update_timer_callback_lock = 0
 
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        self.last_checker_failed = False
 
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        # The widget shown normally
 
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        self._text_widget = urwid.Text("")
 
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        # The widget shown when we have focus
 
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        self._focus_text_widget = urwid.Text("")
 
133
 
        super(MandosClientWidget, self).__init__(
 
134
 
            update_hook=update_hook, delete_hook=delete_hook,
 
 
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        super(MandosClientWidget, self).__init__(**kwargs)
 
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        self.opened = False
 
139
 
        last_checked_ok = isoformat_to_datetime(self.properties
 
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        if last_checked_ok is None:
 
142
 
            self.last_checker_failed = True
 
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            self.last_checker_failed = ((datetime.datetime.utcnow()
 
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        if self.last_checker_failed:
 
152
 
            self.using_timer(True)
 
154
 
        if self.need_approval:
 
155
 
            self.using_timer(True)
 
157
 
        self.proxy.connect_to_signal("CheckerCompleted",
 
158
 
                                     self.checker_completed,
 
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        self.proxy.connect_to_signal("CheckerStarted",
 
162
 
                                     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",
 
178
 
    def property_changed(self, property=None, value=None):
 
179
 
        super(self, MandosClientWidget).property_changed(property,
 
181
 
        if property == "ApprovalPending":
 
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            using_timer(bool(value))
 
 
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        self.match_objects = (
 
 
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            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):
 
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        """Call this method with True or False when timer should be
 
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        activated or deactivated.
 
188
 
        old = self._update_timer_callback_lock
 
190
 
            self._update_timer_callback_lock += 1
 
192
 
            self._update_timer_callback_lock -= 1
 
193
 
        if old == 0 and self._update_timer_callback_lock:
 
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            self._update_timer_callback_tag = (gobject.timeout_add
 
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        elif old and self._update_timer_callback_lock == 0:
 
198
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
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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
 
 
177
            self._update_timer_callback_tag = (
 
 
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                GLib.timeout_add(1000,
 
 
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                                 glib_safely(self.update_timer)))
 
 
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        elif not (flag or self._update_timer_callback_tag is None):
 
 
181
            GLib.source_remove(self._update_timer_callback_tag)
 
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            self._update_timer_callback_tag = None
 
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    def checker_completed(self, exitstatus, condition, command):
 
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        if exitstatus == 0:
 
203
 
            if self.last_checker_failed:
 
204
 
                self.last_checker_failed = False
 
205
 
                self.using_timer(False)
 
206
 
            #self.logger('Checker for client %s (command "%s")'
 
208
 
            #            % (self.properties["Name"], command))
 
 
186
            log.debug('Checker for client %s (command "%s")'
 
 
187
                      " succeeded", self.properties["Name"], command)
 
212
 
        if not self.last_checker_failed:
 
213
 
            self.last_checker_failed = True
 
214
 
            self.using_timer(True)
 
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        if os.WIFEXITED(condition):
 
216
 
            self.logger('Checker for client %s (command "%s")'
 
217
 
                        ' failed with exit code %s'
 
218
 
                        % (self.properties["Name"], command,
 
219
 
                           os.WEXITSTATUS(condition)))
 
 
192
            log.info('Checker for client %s (command "%s") failed'
 
 
193
                     " with exit code %d", self.properties["Name"],
 
 
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                     command, os.WEXITSTATUS(condition))
 
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        elif os.WIFSIGNALED(condition):
 
221
 
            self.logger('Checker for client %s (command "%s")'
 
222
 
                        ' was killed by signal %s'
 
223
 
                        % (self.properties["Name"], command,
 
224
 
                           os.WTERMSIG(condition)))
 
225
 
        elif os.WCOREDUMP(condition):
 
226
 
            self.logger('Checker for client %s (command "%s")'
 
228
 
                        % (self.properties["Name"], command))
 
230
 
            self.logger('Checker for client %s completed'
 
 
196
            log.info('Checker for client %s (command "%s") was'
 
 
197
                     " killed by signal %d", self.properties["Name"],
 
 
198
                     command, os.WTERMSIG(condition))
 
234
201
    def checker_started(self, command):
 
235
 
        #self.logger('Client %s started checker "%s"'
 
236
 
        #            % (self.properties["Name"], unicode(command)))
 
 
202
        """Server signals that a checker started."""
 
 
203
        log.debug('Client %s started checker "%s"',
 
 
204
                  self.properties["Name"], command)
 
239
206
    def got_secret(self):
 
240
 
        self.last_checker_failed = False
 
241
 
        self.logger('Client %s received its secret'
 
242
 
                    % self.properties["Name"])
 
 
207
        log.info("Client %s received its secret",
 
 
208
                 self.properties["Name"])
 
244
210
    def need_approval(self, timeout, default):
 
246
 
            message = 'Client %s needs approval within %s seconds'
 
 
212
            message = "Client %s needs approval within %f seconds"
 
248
 
            message = 'Client %s will get its secret in %s seconds'
 
250
 
                    % (self.properties["Name"], timeout/1000))
 
251
 
        self.using_timer(True)
 
 
214
            message = "Client %s will get its secret in %f seconds"
 
 
215
        log.info(message, self.properties["Name"], timeout/1000)
 
253
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    def rejected(self, reason):
 
254
 
        self.logger('Client %s was rejected; reason: %s'
 
255
 
                    % (self.properties["Name"], reason))
 
 
218
        log.info("Client %s was rejected; reason: %s",
 
 
219
                 self.properties["Name"], reason)
 
257
221
    def selectable(self):
 
258
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        """Make this a "selectable" widget.
 
259
223
        This overrides the method from urwid.FlowWidget."""
 
262
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    def rows(self, maxcolrow, focus=False):
 
263
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        """How many rows this widget will occupy might depend on
 
264
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        whether we have focus or not.
 
265
229
        This overrides the method from urwid.FlowWidget"""
 
266
230
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
268
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    def current_widget(self, focus=False):
 
269
233
        if focus or self.opened:
 
270
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            return self._focus_widget
 
271
235
        return self._widget
 
273
237
    def update(self):
 
274
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        "Called when what is visible on the screen should be updated."
 
275
239
        # How to add standout mode to a style
 
276
 
        with_standout = { "normal": "standout",
 
277
 
                          "bold": "bold-standout",
 
279
 
                              "underline-blink-standout",
 
280
 
                          "bold-underline-blink":
 
281
 
                              "bold-underline-blink-standout",
 
 
240
        with_standout = {"normal": "standout",
 
 
241
                         "bold": "bold-standout",
 
 
243
                         "underline-blink-standout",
 
 
244
                         "bold-underline-blink":
 
 
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                         "bold-underline-blink-standout",
 
284
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        # Rebuild focus and non-focus widgets using current properties
 
286
250
        # Base part of a client. Name!
 
288
 
                      % {"name": self.properties["Name"]})
 
 
251
        base = "{name}: ".format(name=self.properties["Name"])
 
289
252
        if not self.properties["Enabled"]:
 
290
253
            message = "DISABLED"
 
 
254
            self.using_timer(False)
 
291
255
        elif self.properties["ApprovalPending"]:
 
292
 
            timeout = datetime.timedelta(milliseconds
 
 
256
            timeout = datetime.timedelta(
 
 
257
                milliseconds=self.properties["ApprovalDelay"])
 
295
258
            last_approval_request = isoformat_to_datetime(
 
296
259
                self.properties["LastApprovalRequest"])
 
297
260
            if last_approval_request is not None:
 
298
 
                timer = timeout - (datetime.datetime.utcnow()
 
299
 
                                   - last_approval_request)
 
 
261
                timer = max(timeout - (datetime.datetime.utcnow()
 
 
262
                                       - last_approval_request),
 
 
263
                            datetime.timedelta())
 
301
265
                timer = datetime.timedelta()
 
302
266
            if self.properties["ApprovedByDefault"]:
 
303
 
                message = "Approval in %s. (d)eny?"
 
305
 
                message = "Denial in %s. (a)pprove?"
 
306
 
            message = message % unicode(timer).rsplit(".", 1)[0]
 
307
 
        elif self.last_checker_failed:
 
308
 
            timeout = datetime.timedelta(milliseconds
 
311
 
            last_ok = isoformat_to_datetime(
 
312
 
                max((self.properties["LastCheckedOK"]
 
313
 
                     or self.properties["Created"]),
 
314
 
                    self.properties["LastEnabled"]))
 
315
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
316
 
            message = ('A checker has failed! Time until client'
 
318
 
                           % unicode(timer).rsplit(".", 1)[0])
 
 
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)
 
320
287
            message = "enabled"
 
321
 
        self._text = "%s%s" % (base, message)
 
 
288
            self.using_timer(False)
 
 
289
        self._text = "{}{}".format(base, message)
 
323
291
        if not urwid.supports_unicode():
 
324
292
            self._text = self._text.encode("ascii", "replace")
 
325
293
        textlist = [("normal", self._text)]
 
 
335
303
        # Run update hook, if any
 
336
304
        if self.update_hook is not None:
 
337
305
            self.update_hook()
 
339
307
    def update_timer(self):
 
 
308
        """called by GLib. Will indefinitely loop until
 
 
309
        GLib.source_remove() on tag is called
 
342
312
        return True             # Keep calling this
 
 
314
    def delete(self, **kwargs):
 
345
315
        if self._update_timer_callback_tag is not None:
 
346
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
316
            GLib.source_remove(self._update_timer_callback_tag)
 
347
317
            self._update_timer_callback_tag = None
 
 
318
        for match in self.match_objects:
 
 
320
        self.match_objects = ()
 
348
321
        if self.delete_hook is not None:
 
349
322
            self.delete_hook(self)
 
 
323
        return super(MandosClientWidget, self).delete(**kwargs)
 
351
325
    def render(self, maxcolrow, focus=False):
 
352
326
        """Render differently if we have focus.
 
353
327
        This overrides the method from urwid.FlowWidget"""
 
354
328
        return self.current_widget(focus).render(maxcolrow,
 
357
331
    def keypress(self, maxcolrow, key):
 
359
333
        This overrides the method from urwid.FlowWidget"""
 
361
 
            self.proxy.Enable(dbus_interface = client_interface,
 
 
335
            self.proxy.Set(client_interface, "Enabled",
 
 
336
                           dbus.Boolean(True), ignore_reply=True,
 
 
337
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
364
 
            self.proxy.Disable(dbus_interface = client_interface,
 
 
339
            self.proxy.Set(client_interface, "Enabled", False,
 
 
341
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
367
343
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
368
 
                               dbus_interface = client_interface,
 
 
344
                               dbus_interface=client_interface,
 
369
345
                               ignore_reply=True)
 
371
347
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
372
 
                                  dbus_interface = client_interface,
 
 
348
                               dbus_interface=client_interface,
 
373
349
                               ignore_reply=True)
 
374
350
        elif key == "R" or key == "_" or key == "ctrl k":
 
375
351
            self.server_proxy_object.RemoveClient(self.proxy
 
377
353
                                                  ignore_reply=True)
 
379
 
            self.proxy.StartChecker(dbus_interface = client_interface,
 
 
355
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
356
                           dbus.Boolean(True), ignore_reply=True,
 
 
357
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
382
 
            self.proxy.StopChecker(dbus_interface = client_interface,
 
 
359
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
360
                           dbus.Boolean(False), ignore_reply=True,
 
 
361
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
385
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
 
363
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
386
364
                                 ignore_reply=True)
 
388
366
#         elif key == "p" or key == "=":
 
 
397
 
    def property_changed(self, property=None, value=None,
 
399
 
        """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.
 
400
377
        This overrides the method from MandosClientPropertyCache"""
 
401
 
        property_name = unicode(property)
 
402
 
        old_value = self.properties.get(property_name)
 
403
 
        super(MandosClientWidget, self).property_changed(
 
404
 
            property=property, value=value, *args, **kwargs)
 
405
 
        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)
 
409
397
class ConstrainedListBox(urwid.ListBox):
 
410
398
    """Like a normal urwid.ListBox, but will consume all "up" or
 
411
399
    "down" key presses, thus not allowing any containing widgets to
 
412
400
    use them as an excuse to shift focus away from this widget.
 
414
 
    def keypress(self, maxcolrow, key):
 
415
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
 
402
    def keypress(self, *args, **kwargs):
 
 
403
        ret = (super(ConstrainedListBox, self)
 
 
404
               .keypress(*args, **kwargs))
 
416
405
        if ret in ("up", "down"):
 
421
 
class UserInterface(object):
 
422
411
    """This is the entire user interface - the whole screen
 
423
412
    with boxes, lists of client widgets, etc.
 
425
414
    def __init__(self, max_log_length=1000):
 
426
415
        DBusGMainLoop(set_as_default=True)
 
428
417
        self.screen = urwid.curses_display.Screen()
 
430
419
        self.screen.register_palette((
 
432
421
                 "default", "default", None),
 
434
 
                 "default", "default", "bold"),
 
 
423
                 "bold", "default", "bold"),
 
435
424
                ("underline-blink",
 
436
 
                 "default", "default", "underline"),
 
 
425
                 "underline,blink", "default", "underline,blink"),
 
438
 
                 "default", "default", "standout"),
 
 
427
                 "standout", "default", "standout"),
 
439
428
                ("bold-underline-blink",
 
440
 
                 "default", "default", ("bold", "underline")),
 
 
429
                 "bold,underline,blink", "default",
 
 
430
                 "bold,underline,blink"),
 
441
431
                ("bold-standout",
 
442
 
                 "default", "default", ("bold", "standout")),
 
 
432
                 "bold,standout", "default", "bold,standout"),
 
443
433
                ("underline-blink-standout",
 
444
 
                 "default", "default", ("underline", "standout")),
 
 
434
                 "underline,blink,standout", "default",
 
 
435
                 "underline,blink,standout"),
 
445
436
                ("bold-underline-blink-standout",
 
446
 
                 "default", "default", ("bold", "underline",
 
 
437
                 "bold,underline,blink,standout", "default",
 
 
438
                 "bold,underline,blink,standout"),
 
450
441
        if urwid.supports_unicode():
 
451
 
            self.divider = "─" # \u2500
 
452
 
            #self.divider = "━" # \u2501
 
 
442
            self.divider = "─"  # \u2500
 
454
 
            #self.divider = "-" # \u002d
 
455
 
            self.divider = "_" # \u005f
 
 
444
            self.divider = "_"  # \u005f
 
457
446
        self.screen.start()
 
459
448
        self.size = self.screen.get_cols_rows()
 
461
450
        self.clients = urwid.SimpleListWalker([])
 
462
451
        self.clients_dict = {}
 
464
453
        # We will add Text widgets to this list
 
 
454
        self.log = urwid.SimpleListWalker([])
 
466
455
        self.max_log_length = max_log_length
 
468
457
        # We keep a reference to the log widget so we can remove it
 
469
458
        # from the ListWalker without it getting destroyed
 
470
459
        self.logbox = ConstrainedListBox(self.log)
 
472
461
        # This keeps track of whether self.uilist currently has
 
473
462
        # self.logbox in it or not
 
474
463
        self.log_visible = True
 
475
464
        self.log_wrap = "any"
 
 
466
        self.loghandler = UILogHandler(self)
 
478
 
        self.log_message_raw(("bold",
 
479
 
                              "Mandos Monitor version " + version))
 
480
 
        self.log_message_raw(("bold",
 
483
 
        self.busname = domain + '.Mandos'
 
484
 
        self.main_loop = gobject.MainLoop()
 
485
 
        self.bus = dbus.SystemBus()
 
486
 
        mandos_dbus_objc = self.bus.get_object(
 
487
 
            self.busname, "/", follow_name_owner_changes=True)
 
488
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
492
 
            mandos_clients = (self.mandos_serv
 
493
 
                              .GetAllClientsWithProperties())
 
494
 
        except dbus.exceptions.DBusException:
 
495
 
            mandos_clients = dbus.Dictionary()
 
498
 
         .connect_to_signal("ClientRemoved",
 
499
 
                            self.find_and_remove_client,
 
500
 
                            dbus_interface=server_interface,
 
503
 
         .connect_to_signal("ClientAdded",
 
505
 
                            dbus_interface=server_interface,
 
508
 
         .connect_to_signal("ClientNotFound",
 
509
 
                            self.client_not_found,
 
510
 
                            dbus_interface=server_interface,
 
512
 
        for path, client in mandos_clients.iteritems():
 
513
 
            client_proxy_object = self.bus.get_object(self.busname,
 
515
 
            self.add_client(MandosClientWidget(server_proxy_object
 
518
 
                                               =client_proxy_object,
 
528
 
    def client_not_found(self, fingerprint, address):
 
529
 
        self.log_message(("Client with address %s and fingerprint %s"
 
530
 
                          " 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)
 
533
480
    def rebuild(self):
 
534
481
        """This rebuilds the User Interface.
 
535
482
        Call this when the widget layout needs to change"""
 
537
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
 
484
        # self.uilist.append(urwid.ListBox(self.clients))
 
538
485
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
540
 
                                       #header=urwid.Divider(),
 
 
487
                                       # header=urwid.Divider(),
 
543
 
                                       urwid.Divider(div_char=
 
 
489
                                       footer=urwid.Divider(
 
 
490
                                           div_char=self.divider)))
 
545
491
        if self.log_visible:
 
546
492
            self.uilist.append(self.logbox)
 
548
493
        self.topwidget = urwid.Pile(self.uilist)
 
550
 
    def log_message(self, message):
 
551
 
        timestamp = datetime.datetime.now().isoformat()
 
552
 
        self.log_message_raw(timestamp + ": " + message)
 
554
 
    def log_message_raw(self, markup):
 
555
 
        """Add a log message to the log buffer."""
 
 
495
    def add_log_line(self, markup):
 
556
496
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
557
 
        if (self.max_log_length
 
558
 
            and len(self.log) > self.max_log_length):
 
559
 
            del self.log[0:len(self.log)-self.max_log_length-1]
 
560
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
 
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,
 
561
501
                              coming_from="above")
 
564
504
    def toggle_log_display(self):
 
565
505
        """Toggle visibility of the log buffer."""
 
566
506
        self.log_visible = not self.log_visible
 
568
 
        #self.log_message("Log visibility changed to: "
 
569
 
        #                 + unicode(self.log_visible))
 
 
508
        log.debug("Log visibility changed to: %s", self.log_visible)
 
571
510
    def change_log_display(self):
 
572
511
        """Change type of log display.
 
573
512
        Currently, this toggles wrapping of text lines."""
 
 
577
516
            self.log_wrap = "clip"
 
578
517
        for textwidget in self.log:
 
579
518
            textwidget.set_wrap_mode(self.log_wrap)
 
580
 
        #self.log_message("Wrap mode: " + self.log_wrap)
 
582
 
    def find_and_remove_client(self, path, name):
 
583
 
        """Find an client from its object path and remove it.
 
585
 
        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
 
586
525
        Mandos server object."""
 
 
526
        if client_interface not in interfaces:
 
 
527
            # Not a Mandos client object; ignore
 
588
530
            client = self.clients_dict[path]
 
592
 
        self.remove_client(client, path)
 
594
 
    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
 
595
546
        client_proxy_object = self.bus.get_object(self.busname, path)
 
596
 
        self.add_client(MandosClientWidget(server_proxy_object
 
599
 
                                           =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])),
 
608
555
    def add_client(self, client, path=None):
 
609
556
        self.clients.append(client)
 
611
558
            path = client.proxy.object_path
 
612
559
        self.clients_dict[path] = client
 
613
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
 
560
        self.clients.sort(key=lambda c: c.properties["Name"])
 
616
563
    def remove_client(self, client, path=None):
 
617
564
        self.clients.remove(client)
 
619
566
            path = client.proxy.object_path
 
620
567
        del self.clients_dict[path]
 
621
 
        if not self.clients_dict:
 
622
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
623
 
            # is completely emptied, we need to recreate it.
 
624
 
            self.clients = urwid.SimpleListWalker([])
 
628
570
    def refresh(self):
 
629
571
        """Redraw the screen"""
 
630
572
        canvas = self.topwidget.render(self.size, focus=True)
 
631
573
        self.screen.draw_screen(self.size, canvas)
 
634
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),
 
636
 
        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)))
 
640
628
        self.main_loop.run()
 
641
629
        # Main loop has finished, we should close everything now
 
642
 
        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)
 
646
636
        self.main_loop.quit()
 
 
637
        log.removeHandler(self.loghandler)
 
 
638
        log.propagate = self.orig_log_propagate
 
648
640
    def process_input(self, source, condition):
 
649
641
        keys = self.screen.get_input()
 
650
 
        translations = { "ctrl n": "down",      # Emacs
 
651
 
                         "ctrl p": "up",        # Emacs
 
652
 
                         "ctrl v": "page down", # Emacs
 
653
 
                         "meta v": "page up",   # Emacs
 
654
 
                         " ": "page down",      # less
 
655
 
                         "f": "page down",      # less
 
656
 
                         "b": "page up",        # less
 
 
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
 
662
654
                key = translations[key]
 
663
655
            except KeyError:    # :-)
 
666
658
            if key == "q" or key == "Q":
 
669
661
            elif key == "window resize":
 
670
662
                self.size = self.screen.get_cols_rows()
 
672
 
            elif key == "\f":  # Ctrl-L
 
 
664
            elif key == "ctrl l":
 
674
667
            elif key == "l" or key == "D":
 
675
668
                self.toggle_log_display()