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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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# 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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# 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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#     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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#     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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# 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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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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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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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.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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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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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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                             int(second),           # Whole seconds
 
 
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                             int(fraction*1000000)) # Microseconds
 
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class MandosClientPropertyCache(object):
 
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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
 
96
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
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        self.proxy = proxy_object  # Mandos Client proxy object
 
98
 
        self.properties = dict() if properties is None else properties
 
 
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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.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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            self.proxy.connect_to_signal("PropertyChanged",
 
 
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                                         self.property_changed,
 
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                                         byte_arrays=True))
 
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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))
 
110
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
112
 
    def properties_changed(self, interface, properties, invalidated):
 
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        """This is called whenever we get a PropertiesChanged signal
 
114
 
        It updates the changed properties in the "properties" dict.
 
 
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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 breaks good super behaviour
 
 
101
#        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
 
 
106
        It updates the changed property in the "properties" dict.
 
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        # Update properties dict with new value
 
117
 
        if interface == client_interface:
 
118
 
            self.properties.update(properties)
 
 
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        self.properties[property] = value
 
 
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    def delete(self, *args, **kwargs):
 
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        self.property_changed_match.remove()
 
 
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        super(MandosClientPropertyCache, self).__init__(
 
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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, **kwargs):
 
 
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                 delete_hook=None, logger=None, *args, **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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132
        self._update_timer_callback_tag = None
 
 
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        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("")
 
143
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
 
140
        super(MandosClientWidget, self).__init__(
 
 
141
            update_hook=update_hook, delete_hook=delete_hook,
 
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        self.opened = False
 
 
146
        last_checked_ok = isoformat_to_datetime(self.properties
 
 
148
        if last_checked_ok is None:
 
 
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            self.last_checker_failed = True
 
 
151
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
 
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        if self.last_checker_failed:
 
 
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            self.using_timer(True)
 
 
161
        if self.need_approval:
 
 
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            self.using_timer(True)
 
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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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                                         client_interface,
 
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                                         byte_arrays=True))
 
168
 
        log.debug("Created client %s", self.properties["Name"])
 
 
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        #self.logger('Created client %s' % (self.properties["Name"]))
 
 
187
    def property_changed(self, property=None, value=None):
 
 
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        super(self, MandosClientWidget).property_changed(property,
 
 
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        if property == "ApprovalPending":
 
 
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            using_timer(bool(value))
 
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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.
 
174
 
        if flag and self._update_timer_callback_tag is None:
 
 
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        old = self._update_timer_callback_lock
 
 
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            self._update_timer_callback_lock += 1
 
 
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            self._update_timer_callback_lock -= 1
 
 
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        if old == 0 and self._update_timer_callback_lock:
 
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            # Will update the shown timer value every second
 
176
 
            self._update_timer_callback_tag = (
 
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                GLib.timeout_add(1000,
 
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                                 glib_safely(self.update_timer)))
 
179
 
        elif not (flag or self._update_timer_callback_tag is None):
 
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            GLib.source_remove(self._update_timer_callback_tag)
 
 
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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:
 
 
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            gobject.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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            log.debug('Checker for client %s (command "%s")'
 
186
 
                      " succeeded", self.properties["Name"], command)
 
 
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            if self.last_checker_failed:
 
 
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                self.last_checker_failed = False
 
 
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                self.using_timer(False)
 
 
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            #self.logger('Checker for client %s (command "%s")'
 
 
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            #            % (self.properties["Name"], command))
 
 
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        if not self.last_checker_failed:
 
 
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            self.last_checker_failed = True
 
 
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            self.using_timer(True)
 
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        if os.WIFEXITED(condition):
 
191
 
            log.info('Checker for client %s (command "%s") failed'
 
192
 
                     " with exit code %d", self.properties["Name"],
 
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                     command, os.WEXITSTATUS(condition))
 
 
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            self.logger('Checker for client %s (command "%s")'
 
 
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                        ' failed with exit code %s'
 
 
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                        % (self.properties["Name"], command,
 
 
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                           os.WEXITSTATUS(condition)))
 
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        elif os.WIFSIGNALED(condition):
 
195
 
            log.info('Checker for client %s (command "%s") was'
 
196
 
                     " killed by signal %d", self.properties["Name"],
 
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                     command, os.WTERMSIG(condition))
 
 
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            self.logger('Checker for client %s (command "%s")'
 
 
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                        ' was killed by signal %s'
 
 
233
                        % (self.properties["Name"], command,
 
 
234
                           os.WTERMSIG(condition)))
 
 
235
        elif os.WCOREDUMP(condition):
 
 
236
            self.logger('Checker for client %s (command "%s")'
 
 
238
                        % (self.properties["Name"], command))
 
 
240
            self.logger('Checker for client %s completed'
 
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    def checker_started(self, command):
 
201
 
        """Server signals that a checker started."""
 
202
 
        log.debug('Client %s started checker "%s"',
 
203
 
                  self.properties["Name"], command)
 
 
245
        #self.logger('Client %s started checker "%s"'
 
 
246
        #            % (self.properties["Name"], unicode(command)))
 
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    def got_secret(self):
 
206
 
        log.info("Client %s received its secret",
 
207
 
                 self.properties["Name"])
 
 
250
        self.last_checker_failed = False
 
 
251
        self.logger('Client %s received its secret'
 
 
252
                    % self.properties["Name"])
 
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    def need_approval(self, timeout, default):
 
211
 
            message = "Client %s needs approval within %f seconds"
 
 
256
            message = 'Client %s needs approval within %s seconds'
 
213
 
            message = "Client %s will get its secret in %f seconds"
 
214
 
        log.info(message, self.properties["Name"], timeout/1000)
 
 
258
            message = 'Client %s will get its secret in %s seconds'
 
 
260
                    % (self.properties["Name"], timeout/1000))
 
 
261
        self.using_timer(True)
 
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263
    def rejected(self, reason):
 
217
 
        log.info("Client %s was rejected; reason: %s",
 
218
 
                 self.properties["Name"], reason)
 
 
264
        self.logger('Client %s was rejected; reason: %s'
 
 
265
                    % (self.properties["Name"], reason))
 
220
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    def selectable(self):
 
221
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        """Make this a "selectable" widget.
 
222
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        This overrides the method from urwid.FlowWidget."""
 
225
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    def rows(self, maxcolrow, focus=False):
 
226
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        """How many rows this widget will occupy might depend on
 
227
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        whether we have focus or not.
 
228
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        This overrides the method from urwid.FlowWidget"""
 
229
276
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
231
278
    def current_widget(self, focus=False):
 
232
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        if focus or self.opened:
 
233
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            return self._focus_widget
 
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281
        return self._widget
 
236
283
    def update(self):
 
237
284
        "Called when what is visible on the screen should be updated."
 
238
285
        # How to add standout mode to a style
 
239
 
        with_standout = {"normal": "standout",
 
240
 
                         "bold": "bold-standout",
 
242
 
                         "underline-blink-standout",
 
243
 
                         "bold-underline-blink":
 
244
 
                         "bold-underline-blink-standout",
 
 
286
        with_standout = { "normal": "standout",
 
 
287
                          "bold": "bold-standout",
 
 
289
                              "underline-blink-standout",
 
 
290
                          "bold-underline-blink":
 
 
291
                              "bold-underline-blink-standout",
 
247
294
        # Rebuild focus and non-focus widgets using current properties
 
249
296
        # Base part of a client. Name!
 
250
 
        base = "{name}: ".format(name=self.properties["Name"])
 
 
298
                      % {"name": self.properties["Name"]})
 
251
299
        if not self.properties["Enabled"]:
 
252
300
            message = "DISABLED"
 
253
 
            self.using_timer(False)
 
254
301
        elif self.properties["ApprovalPending"]:
 
255
 
            timeout = datetime.timedelta(
 
256
 
                milliseconds=self.properties["ApprovalDelay"])
 
 
302
            timeout = datetime.timedelta(milliseconds
 
257
305
            last_approval_request = isoformat_to_datetime(
 
258
306
                self.properties["LastApprovalRequest"])
 
259
307
            if last_approval_request is not None:
 
260
 
                timer = max(timeout - (datetime.datetime.utcnow()
 
261
 
                                       - last_approval_request),
 
262
 
                            datetime.timedelta())
 
 
308
                timer = timeout - (datetime.datetime.utcnow()
 
 
309
                                   - last_approval_request)
 
264
311
                timer = datetime.timedelta()
 
265
312
            if self.properties["ApprovedByDefault"]:
 
266
 
                message = "Approval in {}. (d)eny?"
 
 
313
                message = "Approval in %s. (d)eny?"
 
268
 
                message = "Denial in {}. (a)pprove?"
 
269
 
            message = message.format(str(timer).rsplit(".", 1)[0])
 
270
 
            self.using_timer(True)
 
271
 
        elif self.properties["LastCheckerStatus"] != 0:
 
272
 
            # When checker has failed, show timer until client expires
 
 
315
                message = "Denial in %s. (a)pprove?"
 
 
316
            message = message % unicode(timer).rsplit(".", 1)[0]
 
 
317
        elif self.last_checker_failed:
 
 
318
            # When checker has failed, print a timer until client expires
 
273
319
            expires = self.properties["Expires"]
 
274
320
            if expires == "":
 
275
321
                timer = datetime.timedelta(0)
 
277
 
                expires = (datetime.datetime.strptime
 
278
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
279
 
                timer = max(expires - datetime.datetime.utcnow(),
 
280
 
                            datetime.timedelta())
 
281
 
            message = ("A checker has failed! Time until client"
 
283
 
                       .format(str(timer).rsplit(".", 1)[0]))
 
284
 
            self.using_timer(True)
 
 
323
                expires = datetime.datetime.strptime(expires,
 
 
324
                                                     '%Y-%m-%dT%H:%M:%S.%f')
 
 
325
                timer = expires - datetime.datetime.utcnow()
 
 
326
            message = ('A checker has failed! Time until client'
 
 
328
                           % unicode(timer).rsplit(".", 1)[0])
 
286
330
            message = "enabled"
 
287
 
            self.using_timer(False)
 
288
 
        self._text = "{}{}".format(base, message)
 
 
331
        self._text = "%s%s" % (base, message)
 
290
333
        if not urwid.supports_unicode():
 
291
334
            self._text = self._text.encode("ascii", "replace")
 
292
335
        textlist = [("normal", self._text)]
 
 
302
345
        # Run update hook, if any
 
303
346
        if self.update_hook is not None:
 
304
347
            self.update_hook()
 
306
349
    def update_timer(self):
 
307
 
        """called by GLib. Will indefinitely loop until
 
308
 
        GLib.source_remove() on tag is called
 
 
350
        """called by gobject. Will indefinitely loop until
 
 
351
        gobject.source_remove() on tag is called"""
 
311
353
        return True             # Keep calling this
 
313
 
    def delete(self, **kwargs):
 
 
355
    def delete(self, *args, **kwargs):
 
314
356
        if self._update_timer_callback_tag is not None:
 
315
 
            GLib.source_remove(self._update_timer_callback_tag)
 
 
357
            gobject.source_remove(self._update_timer_callback_tag)
 
316
358
            self._update_timer_callback_tag = None
 
317
359
        for match in self.match_objects:
 
319
361
        self.match_objects = ()
 
320
362
        if self.delete_hook is not None:
 
321
363
            self.delete_hook(self)
 
322
 
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
364
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
324
366
    def render(self, maxcolrow, focus=False):
 
325
367
        """Render differently if we have focus.
 
326
368
        This overrides the method from urwid.FlowWidget"""
 
327
369
        return self.current_widget(focus).render(maxcolrow,
 
330
372
    def keypress(self, maxcolrow, key):
 
332
374
        This overrides the method from urwid.FlowWidget"""
 
334
 
            self.proxy.Set(client_interface, "Enabled",
 
335
 
                           dbus.Boolean(True), ignore_reply=True,
 
336
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
376
            self.proxy.Enable(dbus_interface = client_interface,
 
338
 
            self.proxy.Set(client_interface, "Enabled", False,
 
340
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
379
            self.proxy.Disable(dbus_interface = client_interface,
 
342
382
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
343
 
                               dbus_interface=client_interface,
 
 
383
                               dbus_interface = client_interface,
 
344
384
                               ignore_reply=True)
 
346
386
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
347
 
                               dbus_interface=client_interface,
 
 
387
                                  dbus_interface = client_interface,
 
348
388
                               ignore_reply=True)
 
349
389
        elif key == "R" or key == "_" or key == "ctrl k":
 
350
390
            self.server_proxy_object.RemoveClient(self.proxy
 
352
392
                                                  ignore_reply=True)
 
354
 
            self.proxy.Set(client_interface, "CheckerRunning",
 
355
 
                           dbus.Boolean(True), ignore_reply=True,
 
356
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
394
            self.proxy.StartChecker(dbus_interface = client_interface,
 
358
 
            self.proxy.Set(client_interface, "CheckerRunning",
 
359
 
                           dbus.Boolean(False), ignore_reply=True,
 
360
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
397
            self.proxy.StopChecker(dbus_interface = client_interface,
 
362
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
 
400
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
363
401
                                 ignore_reply=True)
 
365
403
#         elif key == "p" or key == "=":
 
 
374
 
    def properties_changed(self, interface, properties, invalidated):
 
375
 
        """Call self.update() if any properties changed.
 
 
412
    def property_changed(self, property=None, value=None,
 
 
414
        """Call self.update() if old value is not new value.
 
376
415
        This overrides the method from MandosClientPropertyCache"""
 
377
 
        old_values = {key: self.properties.get(key)
 
378
 
                      for key in properties.keys()}
 
379
 
        super(MandosClientWidget, self).properties_changed(
 
380
 
            interface, properties, invalidated)
 
381
 
        if any(old_values[key] != self.properties.get(key)
 
382
 
               for key in old_values):
 
 
416
        property_name = unicode(property)
 
 
417
        old_value = self.properties.get(property_name)
 
 
418
        super(MandosClientWidget, self).property_changed(
 
 
419
            property=property, value=value, *args, **kwargs)
 
 
420
        if self.properties.get(property_name) != old_value:
 
386
 
def glib_safely(func, retval=True):
 
387
 
    def safe_func(*args, **kwargs):
 
389
 
            return func(*args, **kwargs)
 
396
424
class ConstrainedListBox(urwid.ListBox):
 
397
425
    """Like a normal urwid.ListBox, but will consume all "up" or
 
398
426
    "down" key presses, thus not allowing any containing widgets to
 
399
427
    use them as an excuse to shift focus away from this widget.
 
401
 
    def keypress(self, *args, **kwargs):
 
402
 
        ret = (super(ConstrainedListBox, self)
 
403
 
               .keypress(*args, **kwargs))
 
 
429
    def keypress(self, maxcolrow, key):
 
 
430
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
404
431
        if ret in ("up", "down"):
 
 
413
440
    def __init__(self, max_log_length=1000):
 
414
441
        DBusGMainLoop(set_as_default=True)
 
416
443
        self.screen = urwid.curses_display.Screen()
 
418
445
        self.screen.register_palette((
 
420
447
                 "default", "default", None),
 
422
 
                 "bold", "default", "bold"),
 
 
449
                 "default", "default", "bold"),
 
423
450
                ("underline-blink",
 
424
 
                 "underline,blink", "default", "underline,blink"),
 
 
451
                 "default", "default", "underline"),
 
426
 
                 "standout", "default", "standout"),
 
 
453
                 "default", "default", "standout"),
 
427
454
                ("bold-underline-blink",
 
428
 
                 "bold,underline,blink", "default",
 
429
 
                 "bold,underline,blink"),
 
 
455
                 "default", "default", ("bold", "underline")),
 
430
456
                ("bold-standout",
 
431
 
                 "bold,standout", "default", "bold,standout"),
 
 
457
                 "default", "default", ("bold", "standout")),
 
432
458
                ("underline-blink-standout",
 
433
 
                 "underline,blink,standout", "default",
 
434
 
                 "underline,blink,standout"),
 
 
459
                 "default", "default", ("underline", "standout")),
 
435
460
                ("bold-underline-blink-standout",
 
436
 
                 "bold,underline,blink,standout", "default",
 
437
 
                 "bold,underline,blink,standout"),
 
 
461
                 "default", "default", ("bold", "underline",
 
440
465
        if urwid.supports_unicode():
 
441
 
            self.divider = "─"  # \u2500
 
 
466
            self.divider = "─" # \u2500
 
 
467
            #self.divider = "━" # \u2501
 
443
 
            self.divider = "_"  # \u005f
 
 
469
            #self.divider = "-" # \u002d
 
 
470
            self.divider = "_" # \u005f
 
445
472
        self.screen.start()
 
447
474
        self.size = self.screen.get_cols_rows()
 
449
476
        self.clients = urwid.SimpleListWalker([])
 
450
477
        self.clients_dict = {}
 
452
479
        # We will add Text widgets to this list
 
453
 
        self.log = urwid.SimpleListWalker([])
 
454
481
        self.max_log_length = max_log_length
 
456
483
        # We keep a reference to the log widget so we can remove it
 
457
484
        # from the ListWalker without it getting destroyed
 
458
485
        self.logbox = ConstrainedListBox(self.log)
 
460
487
        # This keeps track of whether self.uilist currently has
 
461
488
        # self.logbox in it or not
 
462
489
        self.log_visible = True
 
463
490
        self.log_wrap = "any"
 
465
 
        self.loghandler = UILogHandler(self)
 
468
 
        self.add_log_line(("bold",
 
469
 
                           "Mandos Monitor version " + version))
 
470
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
472
 
        self.busname = domain + ".Mandos"
 
473
 
        self.main_loop = GLib.MainLoop()
 
475
 
    def client_not_found(self, key_id, address):
 
476
 
        log.info("Client with address %s and key ID %s could"
 
477
 
                 " not be found", address, key_id)
 
 
493
        self.log_message_raw(("bold",
 
 
494
                              "Mandos Monitor version " + version))
 
 
495
        self.log_message_raw(("bold",
 
 
498
        self.busname = domain + '.Mandos'
 
 
499
        self.main_loop = gobject.MainLoop()
 
 
500
        self.bus = dbus.SystemBus()
 
 
501
        mandos_dbus_objc = self.bus.get_object(
 
 
502
            self.busname, "/", follow_name_owner_changes=True)
 
 
503
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
 
507
            mandos_clients = (self.mandos_serv
 
 
508
                              .GetAllClientsWithProperties())
 
 
509
        except dbus.exceptions.DBusException:
 
 
510
            mandos_clients = dbus.Dictionary()
 
 
513
         .connect_to_signal("ClientRemoved",
 
 
514
                            self.find_and_remove_client,
 
 
515
                            dbus_interface=server_interface,
 
 
518
         .connect_to_signal("ClientAdded",
 
 
520
                            dbus_interface=server_interface,
 
 
523
         .connect_to_signal("ClientNotFound",
 
 
524
                            self.client_not_found,
 
 
525
                            dbus_interface=server_interface,
 
 
527
        for path, client in mandos_clients.iteritems():
 
 
528
            client_proxy_object = self.bus.get_object(self.busname,
 
 
530
            self.add_client(MandosClientWidget(server_proxy_object
 
 
533
                                               =client_proxy_object,
 
 
543
    def client_not_found(self, fingerprint, address):
 
 
544
        self.log_message(("Client with address %s and fingerprint %s"
 
 
545
                          " could not be found" % (address,
 
479
548
    def rebuild(self):
 
480
549
        """This rebuilds the User Interface.
 
481
550
        Call this when the widget layout needs to change"""
 
483
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
 
552
        #self.uilist.append(urwid.ListBox(self.clients))
 
484
553
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
486
 
                                       # header=urwid.Divider(),
 
 
555
                                       #header=urwid.Divider(),
 
488
 
                                       footer=urwid.Divider(
 
489
 
                                           div_char=self.divider)))
 
 
558
                                       urwid.Divider(div_char=
 
490
560
        if self.log_visible:
 
491
561
            self.uilist.append(self.logbox)
 
492
563
        self.topwidget = urwid.Pile(self.uilist)
 
494
 
    def add_log_line(self, markup):
 
 
565
    def log_message(self, message):
 
 
566
        timestamp = datetime.datetime.now().isoformat()
 
 
567
        self.log_message_raw(timestamp + ": " + message)
 
 
569
    def log_message_raw(self, markup):
 
 
570
        """Add a log message to the log buffer."""
 
495
571
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
496
 
        if self.max_log_length:
 
497
 
            if len(self.log) > self.max_log_length:
 
498
 
                del self.log[0:(len(self.log) - self.max_log_length)]
 
499
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
 
572
        if (self.max_log_length
 
 
573
            and len(self.log) > self.max_log_length):
 
 
574
            del self.log[0:len(self.log)-self.max_log_length-1]
 
 
575
        self.logbox.set_focus(len(self.logbox.body.contents),
 
500
576
                              coming_from="above")
 
503
579
    def toggle_log_display(self):
 
504
580
        """Toggle visibility of the log buffer."""
 
505
581
        self.log_visible = not self.log_visible
 
507
 
        log.debug("Log visibility changed to: %s", self.log_visible)
 
 
583
        #self.log_message("Log visibility changed to: "
 
 
584
        #                 + unicode(self.log_visible))
 
509
586
    def change_log_display(self):
 
510
587
        """Change type of log display.
 
511
588
        Currently, this toggles wrapping of text lines."""
 
 
515
592
            self.log_wrap = "clip"
 
516
593
        for textwidget in self.log:
 
517
594
            textwidget.set_wrap_mode(self.log_wrap)
 
518
 
        log.debug("Wrap mode: %s", self.log_wrap)
 
520
 
    def find_and_remove_client(self, path, interfaces):
 
 
595
        #self.log_message("Wrap mode: " + self.log_wrap)
 
 
597
    def find_and_remove_client(self, path, name):
 
521
598
        """Find a client by its object path and remove it.
 
523
 
        This is connected to the InterfacesRemoved signal from the
 
 
600
        This is connected to the ClientRemoved signal from the
 
524
601
        Mandos server object."""
 
525
 
        if client_interface not in interfaces:
 
526
 
            # Not a Mandos client object; ignore
 
529
603
            client = self.clients_dict[path]
 
532
 
            log.warning("Unknown client %s removed", path)
 
 
606
            self.log_message("Unknown client %r (%r) removed", name,
 
536
 
    def add_new_client(self, path, ifs_and_props):
 
537
 
        """Find a client by its object path and remove it.
 
539
 
        This is connected to the InterfacesAdded signal from the
 
540
 
        Mandos server object.
 
542
 
        if client_interface not in ifs_and_props:
 
543
 
            # Not a Mandos client object; ignore
 
 
611
    def add_new_client(self, path):
 
545
612
        client_proxy_object = self.bus.get_object(self.busname, path)
 
546
 
        self.add_client(MandosClientWidget(
 
547
 
            server_proxy_object=self.mandos_serv,
 
548
 
            proxy_object=client_proxy_object,
 
549
 
            update_hook=self.refresh,
 
550
 
            delete_hook=self.remove_client,
 
551
 
            properties=dict(ifs_and_props[client_interface])),
 
 
613
        self.add_client(MandosClientWidget(server_proxy_object
 
 
616
                                           =client_proxy_object,
 
554
625
    def add_client(self, client, path=None):
 
555
626
        self.clients.append(client)
 
557
628
            path = client.proxy.object_path
 
558
629
        self.clients_dict[path] = client
 
559
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
 
630
        self.clients.sort(None, lambda c: c.properties["Name"])
 
562
633
    def remove_client(self, client, path=None):
 
563
634
        self.clients.remove(client)
 
565
636
            path = client.proxy.object_path
 
566
637
        del self.clients_dict[path]
 
 
638
        if not self.clients_dict:
 
 
639
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
 
640
            # is completely emptied, we need to recreate it.
 
 
641
            self.clients = urwid.SimpleListWalker([])
 
569
645
    def refresh(self):
 
570
646
        """Redraw the screen"""
 
571
647
        canvas = self.topwidget.render(self.size, focus=True)
 
572
648
        self.screen.draw_screen(self.size, canvas)
 
575
651
        """Start the main loop and exit when it's done."""
 
576
 
        log.addHandler(self.loghandler)
 
577
 
        self.orig_log_propagate = log.propagate
 
578
 
        log.propagate = False
 
579
 
        self.orig_log_level = log.level
 
581
 
        self.bus = dbus.SystemBus()
 
582
 
        mandos_dbus_objc = self.bus.get_object(
 
583
 
            self.busname, "/", follow_name_owner_changes=True)
 
584
 
        self.mandos_serv = dbus.Interface(
 
585
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
587
 
            mandos_clients = (self.mandos_serv
 
588
 
                              .GetAllClientsWithProperties())
 
589
 
            if not mandos_clients:
 
590
 
                log.warning("Note: Server has no clients.")
 
591
 
        except dbus.exceptions.DBusException:
 
592
 
            log.warning("Note: No Mandos server running.")
 
593
 
            mandos_clients = dbus.Dictionary()
 
596
 
         .connect_to_signal("InterfacesRemoved",
 
597
 
                            self.find_and_remove_client,
 
598
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
601
 
         .connect_to_signal("InterfacesAdded",
 
603
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
606
 
         .connect_to_signal("ClientNotFound",
 
607
 
                            self.client_not_found,
 
608
 
                            dbus_interface=server_interface,
 
610
 
        for path, client in mandos_clients.items():
 
611
 
            client_proxy_object = self.bus.get_object(self.busname,
 
613
 
            self.add_client(MandosClientWidget(
 
614
 
                server_proxy_object=self.mandos_serv,
 
615
 
                proxy_object=client_proxy_object,
 
617
 
                update_hook=self.refresh,
 
618
 
                delete_hook=self.remove_client),
 
622
 
        self._input_callback_tag = (
 
624
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
625
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
626
 
                glib_safely(self.process_input)))
 
 
653
        self._input_callback_tag = (gobject.io_add_watch
 
627
657
        self.main_loop.run()
 
628
658
        # Main loop has finished, we should close everything now
 
629
 
        GLib.source_remove(self._input_callback_tag)
 
630
 
        with warnings.catch_warnings():
 
631
 
            warnings.simplefilter("ignore", BytesWarning)
 
 
659
        gobject.source_remove(self._input_callback_tag)
 
635
663
        self.main_loop.quit()
 
636
 
        log.removeHandler(self.loghandler)
 
637
 
        log.propagate = self.orig_log_propagate
 
639
665
    def process_input(self, source, condition):
 
640
666
        keys = self.screen.get_input()
 
641
 
        translations = {"ctrl n": "down",       # Emacs
 
642
 
                        "ctrl p": "up",         # Emacs
 
643
 
                        "ctrl v": "page down",  # Emacs
 
644
 
                        "meta v": "page up",    # Emacs
 
645
 
                        " ": "page down",       # less
 
646
 
                        "f": "page down",       # less
 
647
 
                        "b": "page up",         # less
 
 
667
        translations = { "ctrl n": "down",      # Emacs
 
 
668
                         "ctrl p": "up",        # Emacs
 
 
669
                         "ctrl v": "page down", # Emacs
 
 
670
                         "meta v": "page up",   # Emacs
 
 
671
                         " ": "page down",      # less
 
 
672
                         "f": "page down",      # less
 
 
673
                         "b": "page up",        # less
 
653
679
                key = translations[key]
 
654
680
            except KeyError:    # :-)
 
657
683
            if key == "q" or key == "Q":
 
660
686
            elif key == "window resize":
 
661
687
                self.size = self.screen.get_cols_rows()
 
663
 
            elif key == "ctrl l":
 
 
689
            elif key == "\f":  # Ctrl-L
 
666
691
            elif key == "l" or key == "D":
 
667
692
                self.toggle_log_display()
 
 
700
724
                    self.topwidget.set_focus(self.logbox)
 
703
 
                if log.level < logging.INFO:
 
704
 
                    log.setLevel(logging.INFO)
 
705
 
                    log.info("Verbose mode: Off")
 
707
 
                    log.setLevel(logging.NOTSET)
 
708
 
                    log.info("Verbose mode: On")
 
709
 
            # elif (key == "end" or key == "meta >" or key == "G"
 
711
 
            #     pass            # xxx end-of-buffer
 
712
 
            # elif (key == "home" or key == "meta <" or key == "g"
 
714
 
            #     pass            # xxx beginning-of-buffer
 
715
 
            # elif key == "ctrl e" or key == "$":
 
716
 
            #     pass            # xxx move-end-of-line
 
717
 
            # elif key == "ctrl a" or key == "^":
 
718
 
            #     pass            # xxx move-beginning-of-line
 
719
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
721
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
724
 
            #     pass            # scroll up log
 
726
 
            #     pass            # scroll down log
 
 
726
            #elif (key == "end" or key == "meta >" or key == "G"
 
 
728
            #    pass            # xxx end-of-buffer
 
 
729
            #elif (key == "home" or key == "meta <" or key == "g"
 
 
731
            #    pass            # xxx beginning-of-buffer
 
 
732
            #elif key == "ctrl e" or key == "$":
 
 
733
            #    pass            # xxx move-end-of-line
 
 
734
            #elif key == "ctrl a" or key == "^":
 
 
735
            #    pass            # xxx move-beginning-of-line
 
 
736
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
 
738
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
 
741
            #    pass            # scroll up log
 
 
743
            #    pass            # scroll down log
 
727
744
            elif self.topwidget.selectable():
 
728
745
                self.topwidget.keypress(self.size, key)
 
733
 
class UILogHandler(logging.Handler):
 
734
 
    def __init__(self, ui, *args, **kwargs):
 
736
 
        super(UILogHandler, self).__init__(*args, **kwargs)
 
738
 
            logging.Formatter("%(asctime)s: %(message)s"))
 
739
 
    def emit(self, record):
 
740
 
        msg = self.format(record)
 
741
 
        if record.levelno > logging.INFO:
 
743
 
        self.ui.add_log_line(msg)
 
746
749
ui = UserInterface()
 
749
752
except KeyboardInterrupt:
 
750
 
    with warnings.catch_warnings():
 
751
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
754
 
    with warnings.catch_warnings():
 
755
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
755
    ui.log_message(unicode(e))