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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 © 2009-2014 Teddy Hogeborn
 
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# Copyright © 2009-2014 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
 
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# <http://www.gnu.org/licenses/>.
 
 
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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,
 
 
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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.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("PropertyChanged",
 
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                                         self._property_changed,
 
 
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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(
 
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                self.proxy.GetAll(client_interface,
 
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                                  = dbus.PROPERTIES_IFACE))
 
 
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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 _property_changed(self, property, value):
 
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        """Helper which takes positional arguments"""
 
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        return self.property_changed(property=property, value=value)
 
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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 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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    def delete(self):
 
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        self.property_changed_match.remove()
 
 
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                                         client_interface,
 
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                                         byte_arrays=True))
 
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        #self.logger('Created client {0}'
 
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        #            .format(self.properties["Name"]))
 
 
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        self.logger('Created client {}'
 
 
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                    .format(self.properties["Name"]), level=0)
 
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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.
 
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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 = (gobject.timeout_add
 
 
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            self._update_timer_callback_tag = (GLib.timeout_add
 
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                                                self.update_timer))
 
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        elif not (flag or self._update_timer_callback_tag is None):
 
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            gobject.source_remove(self._update_timer_callback_tag)
 
 
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            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:
 
 
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            self.logger('Checker for client {} (command "{}")'
 
 
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                        ' succeeded'.format(self.properties["Name"],
 
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        if os.WIFEXITED(condition):
 
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            self.logger('Checker for client {0} (command "{1}")'
 
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                        ' failed with exit code {2}'
 
 
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            self.logger('Checker for client {} (command "{}") failed'
 
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                        .format(self.properties["Name"], command,
 
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                                os.WEXITSTATUS(condition)))
 
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        elif os.WIFSIGNALED(condition):
 
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            self.logger('Checker for client {0} (command "{1}") was'
 
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                        ' killed by signal {2}'
 
 
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            self.logger('Checker for client {} (command "{}") was'
 
 
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                        ' killed by signal {}'
 
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                        .format(self.properties["Name"], command,
 
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                                os.WTERMSIG(condition)))
 
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        elif os.WCOREDUMP(condition):
 
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            self.logger('Checker for client {0} (command "{1}")'
 
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                        .format(self.properties["Name"], command))
 
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            self.logger('Checker for client {0} completed'
 
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                        .format(self.properties["Name"]))
 
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    def checker_started(self, command):
 
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        """Server signals that a checker started. This could be useful
 
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           to log in the future. """
 
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        #self.logger('Client {0} started checker "{1}"'
 
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        #            .format(self.properties["Name"],
 
 
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        """Server signals that a checker started."""
 
 
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        self.logger('Client {} started checker "{}"'
 
 
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                    .format(self.properties["Name"],
 
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    def got_secret(self):
 
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        self.logger('Client {0} received its secret'
 
 
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        self.logger('Client {} received its secret'
 
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                    .format(self.properties["Name"]))
 
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    def need_approval(self, timeout, default):
 
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            message = 'Client {0} needs approval within {1} seconds'
 
 
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            message = 'Client {} needs approval within {} seconds'
 
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            message = 'Client {0} will get its secret in {1} seconds'
 
 
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            message = 'Client {} will get its secret in {} seconds'
 
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        self.logger(message.format(self.properties["Name"],
 
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    def rejected(self, reason):
 
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        self.logger('Client {0} was rejected; reason: {1}'
 
 
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        self.logger('Client {} was rejected; reason: {}'
 
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                    .format(self.properties["Name"], reason))
 
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    def selectable(self):
 
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        """Make this a "selectable" widget.
 
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        This overrides the method from urwid.FlowWidget."""
 
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    def rows(self, maxcolrow, focus=False):
 
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        """How many rows this widget will occupy might depend on
 
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        whether we have focus or not.
 
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        This overrides the method from urwid.FlowWidget"""
 
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        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
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    def current_widget(self, focus=False):
 
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        if focus or self.opened:
 
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            return self._focus_widget
 
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        return self._widget
 
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    def update(self):
 
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        "Called when what is visible on the screen should be updated."
 
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        # How to add standout mode to a style
 
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        with_standout = { "normal": "standout",
 
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                          "bold": "bold-standout",
 
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                              "underline-blink-standout",
 
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                          "bold-underline-blink":
 
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                              "bold-underline-blink-standout",
 
 
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        with_standout = {"normal": "standout",
 
 
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                         "bold": "bold-standout",
 
 
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                         "underline-blink-standout",
 
 
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                         "bold-underline-blink":
 
 
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                         "bold-underline-blink-standout",
 
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        # Rebuild focus and non-focus widgets using current properties
 
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        # Base part of a client. Name!
 
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        base = '{name}: '.format(name=self.properties["Name"])
 
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        if not self.properties["Enabled"]:
 
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            message = "DISABLED"
 
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            self.using_timer(False)
 
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        elif self.properties["ApprovalPending"]:
 
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            timeout = datetime.timedelta(milliseconds
 
 
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            timeout = datetime.timedelta(
 
 
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                milliseconds=self.properties["ApprovalDelay"])
 
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            last_approval_request = isoformat_to_datetime(
 
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                self.properties["LastApprovalRequest"])
 
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            if last_approval_request is not None:
 
 
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        if self.delete_hook is not None:
 
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            self.delete_hook(self)
 
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        return super(MandosClientWidget, self).delete(**kwargs)
 
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    def render(self, maxcolrow, focus=False):
 
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        """Render differently if we have focus.
 
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        This overrides the method from urwid.FlowWidget"""
 
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        return self.current_widget(focus).render(maxcolrow,
 
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    def keypress(self, maxcolrow, key):
 
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        This overrides the method from urwid.FlowWidget"""
 
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            self.proxy.Enable(dbus_interface = client_interface,
 
 
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            self.proxy.Set(client_interface, "Enabled",
 
 
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                           dbus.Boolean(True), ignore_reply=True,
 
 
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                           dbus_interface=dbus.PROPERTIES_IFACE)
 
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            self.proxy.Disable(dbus_interface = client_interface,
 
 
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            self.proxy.Set(client_interface, "Enabled", False,
 
 
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                           dbus_interface=dbus.PROPERTIES_IFACE)
 
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            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
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                               dbus_interface = client_interface,
 
 
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                               dbus_interface=client_interface,
 
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                               ignore_reply=True)
 
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            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
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                                  dbus_interface = client_interface,
 
 
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                               dbus_interface=client_interface,
 
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                               ignore_reply=True)
 
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        elif key == "R" or key == "_" or key == "ctrl k":
 
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            self.server_proxy_object.RemoveClient(self.proxy
 
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                                                  ignore_reply=True)
 
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            self.proxy.StartChecker(dbus_interface = client_interface,
 
 
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            self.proxy.Set(client_interface, "CheckerRunning",
 
 
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                           dbus.Boolean(True), ignore_reply=True,
 
 
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                           dbus_interface=dbus.PROPERTIES_IFACE)
 
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            self.proxy.StopChecker(dbus_interface = client_interface,
 
 
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            self.proxy.Set(client_interface, "CheckerRunning",
 
 
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                           dbus.Boolean(False), ignore_reply=True,
 
 
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                           dbus_interface=dbus.PROPERTIES_IFACE)
 
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            self.proxy.CheckedOK(dbus_interface = client_interface,
 
 
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            self.proxy.CheckedOK(dbus_interface=client_interface,
 
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                                 ignore_reply=True)
 
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#         elif key == "p" or key == "=":
 
 
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    def property_changed(self, property=None, **kwargs):
 
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        """Call self.update() if old value is not new value.
 
 
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    def properties_changed(self, interface, properties, invalidated):
 
 
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        """Call self.update() if any properties changed.
 
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        This overrides the method from MandosClientPropertyCache"""
 
382
 
        property_name = str(property)
 
383
 
        old_value = self.properties.get(property_name)
 
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        super(MandosClientWidget, self).property_changed(
 
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            property=property, **kwargs)
 
386
 
        if self.properties.get(property_name) != old_value:
 
 
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        old_values = {key: self.properties.get(key)
 
 
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                      for key in properties.keys()}
 
 
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        super(MandosClientWidget, self).properties_changed(
 
 
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            interface, properties, invalidated)
 
 
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        if any(old_values[key] != self.properties.get(key)
 
 
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               for key in old_values):
 
 
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                 "bold,underline,blink,standout", "default",
 
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                 "bold,underline,blink,standout"),
 
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        if urwid.supports_unicode():
 
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            self.divider = "─" # \u2500
 
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            #self.divider = "━" # \u2501
 
 
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            self.divider = "─"  # \u2500
 
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            #self.divider = "-" # \u002d
 
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            self.divider = "_" # \u005f
 
 
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            self.divider = "_"  # \u005f
 
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        self.screen.start()
 
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        self.size = self.screen.get_cols_rows()
 
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        self.clients = urwid.SimpleListWalker([])
 
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        self.clients_dict = {}
 
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        # We will add Text widgets to this list
 
 
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        self.log = urwid.SimpleListWalker([])
 
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        self.max_log_length = max_log_length
 
 
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        self.log_level = log_level
 
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        # We keep a reference to the log widget so we can remove it
 
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        # from the ListWalker without it getting destroyed
 
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        self.logbox = ConstrainedListBox(self.log)
 
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        # This keeps track of whether self.uilist currently has
 
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        # self.logbox in it or not
 
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        self.log_visible = True
 
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        self.log_wrap = "any"
 
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        self.log_message_raw(("bold",
 
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                              "Mandos Monitor version " + version))
 
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        self.log_message_raw(("bold",
 
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                              "q: Quit  ?: Help"))
 
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        self.busname = domain + '.Mandos'
 
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        self.main_loop = gobject.MainLoop()
 
 
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        self.main_loop = GLib.MainLoop()
 
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    def client_not_found(self, fingerprint, address):
 
469
 
        self.log_message("Client with address {0} and fingerprint"
 
470
 
                         " {1} could not be found"
 
 
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        self.log_message("Client with address {} and fingerprint {}"
 
 
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                         " could not be found"
 
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                         .format(address, fingerprint))
 
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    def rebuild(self):
 
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        """This rebuilds the User Interface.
 
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        Call this when the widget layout needs to change"""
 
477
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
 
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        # self.uilist.append(urwid.ListBox(self.clients))
 
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        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
480
 
                                       #header=urwid.Divider(),
 
 
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                                       # header=urwid.Divider(),
 
483
 
                                       urwid.Divider(div_char=
 
 
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                                       footer=urwid.Divider(
 
 
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                                           div_char=self.divider)))
 
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        if self.log_visible:
 
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            self.uilist.append(self.logbox)
 
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        self.topwidget = urwid.Pile(self.uilist)
 
489
 
    def log_message(self, message):
 
 
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    def log_message(self, message, level=1):
 
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        """Log message formatted with timestamp"""
 
 
492
        if level < self.log_level:
 
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        timestamp = datetime.datetime.now().isoformat()
 
492
 
        self.log_message_raw(timestamp + ": " + message)
 
494
 
    def log_message_raw(self, markup):
 
 
495
        self.log_message_raw("{}: {}".format(timestamp, message),
 
 
498
    def log_message_raw(self, markup, level=1):
 
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        """Add a log message to the log buffer."""
 
 
500
        if level < self.log_level:
 
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        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
497
 
        if (self.max_log_length
 
498
 
            and len(self.log) > self.max_log_length):
 
499
 
            del self.log[0:len(self.log)-self.max_log_length-1]
 
500
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
 
503
        if self.max_log_length:
 
 
504
            if len(self.log) > self.max_log_length:
 
 
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                del self.log[0:len(self.log)-self.max_log_length-1]
 
 
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        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
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                              coming_from="above")
 
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    def toggle_log_display(self):
 
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        """Toggle visibility of the log buffer."""
 
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        self.log_visible = not self.log_visible
 
508
 
        #self.log_message("Log visibility changed to: "
 
509
 
        #                 + str(self.log_visible))
 
 
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        self.log_message("Log visibility changed to: {}"
 
 
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                         .format(self.log_visible), level=0)
 
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    def change_log_display(self):
 
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        """Change type of log display.
 
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        Currently, this toggles wrapping of text lines."""
 
 
517
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            self.log_wrap = "clip"
 
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        for textwidget in self.log:
 
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            textwidget.set_wrap_mode(self.log_wrap)
 
520
 
        #self.log_message("Wrap mode: " + self.log_wrap)
 
522
 
    def find_and_remove_client(self, path, name):
 
 
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        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
 
529
    def find_and_remove_client(self, path, interfaces):
 
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        """Find a client by its object path and remove it.
 
525
 
        This is connected to the ClientRemoved signal from the
 
 
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        This is connected to the InterfacesRemoved signal from the
 
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        Mandos server object."""
 
 
534
        if client_interface not in interfaces:
 
 
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            # Not a Mandos client object; ignore
 
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            client = self.clients_dict[path]
 
531
 
            self.log_message("Unknown client {0!r} ({1!r}) removed"
 
 
541
            self.log_message("Unknown client {!r} removed"
 
536
 
    def add_new_client(self, path):
 
 
546
    def add_new_client(self, path, ifs_and_props):
 
 
547
        """Find a client by its object path and remove it.
 
 
549
        This is connected to the InterfacesAdded signal from the
 
 
550
        Mandos server object.
 
 
552
        if client_interface not in ifs_and_props:
 
 
553
            # Not a Mandos client object; ignore
 
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        client_proxy_object = self.bus.get_object(self.busname, path)
 
538
 
        self.add_client(MandosClientWidget(server_proxy_object
 
541
 
                                           =client_proxy_object,
 
 
556
        self.add_client(MandosClientWidget(
 
 
557
            server_proxy_object=self.mandos_serv,
 
 
558
            proxy_object=client_proxy_object,
 
 
559
            update_hook=self.refresh,
 
 
560
            delete_hook=self.remove_client,
 
 
561
            logger=self.log_message,
 
 
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            properties=dict(ifs_and_props[client_interface])),
 
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    def add_client(self, client, path=None):
 
551
566
        self.clients.append(client)
 
 
554
569
        self.clients_dict[path] = client
 
555
570
        self.clients.sort(key=lambda c: c.properties["Name"])
 
558
573
    def remove_client(self, client, path=None):
 
559
574
        self.clients.remove(client)
 
561
576
            path = client.proxy.object_path
 
562
577
        del self.clients_dict[path]
 
565
580
    def refresh(self):
 
566
581
        """Redraw the screen"""
 
567
582
        canvas = self.topwidget.render(self.size, focus=True)
 
568
583
        self.screen.draw_screen(self.size, canvas)
 
571
586
        """Start the main loop and exit when it's done."""
 
572
587
        self.bus = dbus.SystemBus()
 
573
588
        mandos_dbus_objc = self.bus.get_object(
 
574
589
            self.busname, "/", follow_name_owner_changes=True)
 
575
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
 
590
        self.mandos_serv = dbus.Interface(
 
 
591
            mandos_dbus_objc, dbus_interface=server_interface)
 
579
593
            mandos_clients = (self.mandos_serv
 
580
594
                              .GetAllClientsWithProperties())
 
581
595
            if not mandos_clients:
 
582
 
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
 
596
                self.log_message_raw(("bold",
 
 
597
                                      "Note: Server has no clients."))
 
583
598
        except dbus.exceptions.DBusException:
 
584
 
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
 
599
            self.log_message_raw(("bold",
 
 
600
                                  "Note: No Mandos server running."))
 
585
601
            mandos_clients = dbus.Dictionary()
 
587
603
        (self.mandos_serv
 
588
 
         .connect_to_signal("ClientRemoved",
 
 
604
         .connect_to_signal("InterfacesRemoved",
 
589
605
                            self.find_and_remove_client,
 
590
 
                            dbus_interface=server_interface,
 
 
606
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
591
607
                            byte_arrays=True))
 
592
608
        (self.mandos_serv
 
593
 
         .connect_to_signal("ClientAdded",
 
 
609
         .connect_to_signal("InterfacesAdded",
 
594
610
                            self.add_new_client,
 
595
 
                            dbus_interface=server_interface,
 
 
611
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
596
612
                            byte_arrays=True))
 
597
613
        (self.mandos_serv
 
598
614
         .connect_to_signal("ClientNotFound",
 
 
602
618
        for path, client in mandos_clients.items():
 
603
619
            client_proxy_object = self.bus.get_object(self.busname,
 
605
 
            self.add_client(MandosClientWidget(server_proxy_object
 
608
 
                                               =client_proxy_object,
 
 
621
            self.add_client(MandosClientWidget(
 
 
622
                server_proxy_object=self.mandos_serv,
 
 
623
                proxy_object=client_proxy_object,
 
 
625
                update_hook=self.refresh,
 
 
626
                delete_hook=self.remove_client,
 
 
627
                logger=self.log_message),
 
619
 
        self._input_callback_tag = (gobject.io_add_watch
 
 
631
        self._input_callback_tag = (GLib.io_add_watch
 
620
632
                                    (sys.stdin.fileno(),
 
622
634
                                     self.process_input))
 
623
635
        self.main_loop.run()
 
624
636
        # Main loop has finished, we should close everything now
 
625
 
        gobject.source_remove(self._input_callback_tag)
 
 
637
        GLib.source_remove(self._input_callback_tag)
 
626
638
        self.screen.stop()
 
629
641
        self.main_loop.quit()
 
631
643
    def process_input(self, source, condition):
 
632
644
        keys = self.screen.get_input()
 
633
 
        translations = { "ctrl n": "down",      # Emacs
 
634
 
                         "ctrl p": "up",        # Emacs
 
635
 
                         "ctrl v": "page down", # Emacs
 
636
 
                         "meta v": "page up",   # Emacs
 
637
 
                         " ": "page down",      # less
 
638
 
                         "f": "page down",      # less
 
639
 
                         "b": "page up",        # less
 
 
645
        translations = {"ctrl n": "down",       # Emacs
 
 
646
                        "ctrl p": "up",         # Emacs
 
 
647
                        "ctrl v": "page down",  # Emacs
 
 
648
                        "meta v": "page up",    # Emacs
 
 
649
                        " ": "page down",       # less
 
 
650
                        "f": "page down",       # less
 
 
651
                        "b": "page up",         # less
 
645
657
                key = translations[key]
 
646
658
            except KeyError:    # :-)
 
649
661
            if key == "q" or key == "Q":
 
652
664
            elif key == "window resize":
 
653
665
                self.size = self.screen.get_cols_rows()
 
655
 
            elif key == "\f":  # Ctrl-L
 
 
667
            elif key == "ctrl l":
 
657
670
            elif key == "l" or key == "D":
 
658
671
                self.toggle_log_display()
 
 
690
705
                    self.topwidget.set_focus(self.logbox)
 
692
 
            #elif (key == "end" or key == "meta >" or key == "G"
 
694
 
            #    pass            # xxx end-of-buffer
 
695
 
            #elif (key == "home" or key == "meta <" or key == "g"
 
697
 
            #    pass            # xxx beginning-of-buffer
 
698
 
            #elif key == "ctrl e" or key == "$":
 
699
 
            #    pass            # xxx move-end-of-line
 
700
 
            #elif key == "ctrl a" or key == "^":
 
701
 
            #    pass            # xxx move-beginning-of-line
 
702
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
704
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
707
 
            #    pass            # scroll up log
 
709
 
            #    pass            # scroll down log
 
 
708
                if self.log_level == 0:
 
 
710
                    self.log_message("Verbose mode: Off")
 
 
713
                    self.log_message("Verbose mode: On")
 
 
714
            # elif (key == "end" or key == "meta >" or key == "G"
 
 
716
            #     pass            # xxx end-of-buffer
 
 
717
            # elif (key == "home" or key == "meta <" or key == "g"
 
 
719
            #     pass            # xxx beginning-of-buffer
 
 
720
            # elif key == "ctrl e" or key == "$":
 
 
721
            #     pass            # xxx move-end-of-line
 
 
722
            # elif key == "ctrl a" or key == "^":
 
 
723
            #     pass            # xxx move-beginning-of-line
 
 
724
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
 
726
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
 
729
            #     pass            # scroll up log
 
 
731
            #     pass            # scroll down log
 
710
732
            elif self.topwidget.selectable():
 
711
733
                self.topwidget.keypress(self.size, key)
 
715
738
ui = UserInterface()