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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 © 2009-2012 Teddy Hogeborn
 
 
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# Copyright © 2009-2012 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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# along with this program.  If not, see
 
 
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# <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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    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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# Show warnings by default
 
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if not sys.warnoptions:
 
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    warnings.simplefilter("default")
 
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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.recompile'
 
 
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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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class MandosClientPropertyCache:
 
 
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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
 
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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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    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))
 
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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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        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
 
 
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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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        # Update properties dict with new value
 
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        if interface == client_interface:
 
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            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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        self._update_timer_callback_tag = None
 
 
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        self._update_timer_callback_lock = 0
 
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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("")
 
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        super(MandosClientWidget, self).__init__(**kwargs)
 
 
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        super(MandosClientWidget, self).__init__(
 
 
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            update_hook=update_hook, delete_hook=delete_hook,
 
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        self.opened = False
 
 
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        last_checked_ok = isoformat_to_datetime(self.properties
 
 
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        if self.properties ["LastCheckerStatus"] != 0:
 
 
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            self.using_timer(True)
 
 
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        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))
 
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        log.debug("Created client %s", self.properties["Name"])
 
 
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        #self.logger('Created client {0}'
 
 
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        #            .format(self.properties["Name"]))
 
 
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    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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        if property == "LastCheckerStatus":
 
 
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            using_timer(value != 0)
 
 
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            #self.logger('Checker for client {0} (command "{1}") was '
 
 
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            #            ' successful'.format(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.
 
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        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
 
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            self._update_timer_callback_tag = (
 
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                GLib.timeout_add(1000,
 
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                                 glib_safely(self.update_timer)))
 
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        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")'
 
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                      " succeeded", self.properties["Name"], command)
 
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        if os.WIFEXITED(condition):
 
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            log.info('Checker for client %s (command "%s") failed'
 
198
 
                     " with exit code %d", self.properties["Name"],
 
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                     command, os.WEXITSTATUS(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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                        .format(self.properties["Name"], command,
 
 
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                                os.WEXITSTATUS(condition)))
 
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        elif os.WIFSIGNALED(condition):
 
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            log.info('Checker for client %s (command "%s") was'
 
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                     " killed by signal %d", self.properties["Name"],
 
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                     command, os.WTERMSIG(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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                        .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):
 
207
 
        """Server signals that a checker started."""
 
208
 
        log.debug('Client %s started checker "%s"',
 
209
 
                  self.properties["Name"], command)
 
 
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        """Server signals that a checker started. This could be useful
 
 
235
           to log in the future. """
 
 
236
        #self.logger('Client {0} started checker "{1}"'
 
 
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        #            .format(self.properties["Name"],
 
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    def got_secret(self):
 
212
 
        log.info("Client %s received its secret",
 
213
 
                 self.properties["Name"])
 
 
242
        self.logger('Client {0} received its secret'
 
 
243
                    .format(self.properties["Name"]))
 
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    def need_approval(self, timeout, default):
 
217
 
            message = "Client %s needs approval within %f seconds"
 
 
247
            message = 'Client {0} needs approval within {1} seconds'
 
219
 
            message = "Client %s will get its secret in %f seconds"
 
220
 
        log.info(message, self.properties["Name"], timeout/1000)
 
 
249
            message = 'Client {0} will get its secret in {1} seconds'
 
 
250
        self.logger(message.format(self.properties["Name"],
 
 
252
        self.using_timer(True)
 
222
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    def rejected(self, reason):
 
223
 
        log.info("Client %s was rejected; reason: %s",
 
224
 
                 self.properties["Name"], reason)
 
 
255
        self.logger('Client {0} was rejected; reason: {1}'
 
 
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                    .format(self.properties["Name"], reason))
 
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    def selectable(self):
 
227
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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
 
242
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    def update(self):
 
243
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        "Called when what is visible on the screen should be updated."
 
244
276
        # How to add standout mode to a style
 
245
 
        with_standout = {"normal": "standout",
 
246
 
                         "bold": "bold-standout",
 
248
 
                         "underline-blink-standout",
 
249
 
                         "bold-underline-blink":
 
250
 
                         "bold-underline-blink-standout",
 
 
277
        with_standout = { "normal": "standout",
 
 
278
                          "bold": "bold-standout",
 
 
280
                              "underline-blink-standout",
 
 
281
                          "bold-underline-blink":
 
 
282
                              "bold-underline-blink-standout",
 
253
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        # Rebuild focus and non-focus widgets using current properties
 
255
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        # Base part of a client. Name!
 
256
 
        base = "{name}: ".format(name=self.properties["Name"])
 
 
288
        base = '{name}: '.format(name=self.properties["Name"])
 
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        if not self.properties["Enabled"]:
 
258
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            message = "DISABLED"
 
259
 
            self.using_timer(False)
 
260
291
        elif self.properties["ApprovalPending"]:
 
261
 
            timeout = datetime.timedelta(
 
262
 
                milliseconds=self.properties["ApprovalDelay"])
 
 
292
            timeout = datetime.timedelta(milliseconds
 
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            last_approval_request = isoformat_to_datetime(
 
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                self.properties["LastApprovalRequest"])
 
265
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            if last_approval_request is not None:
 
266
 
                timer = max(timeout - (datetime.datetime.utcnow()
 
267
 
                                       - last_approval_request),
 
268
 
                            datetime.timedelta())
 
 
298
                timer = timeout - (datetime.datetime.utcnow()
 
 
299
                                   - last_approval_request)
 
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                timer = datetime.timedelta()
 
271
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            if self.properties["ApprovedByDefault"]:
 
272
 
                message = "Approval in {}. (d)eny?"
 
 
303
                message = "Approval in {0}. (d)eny?"
 
274
 
                message = "Denial in {}. (a)pprove?"
 
275
 
            message = message.format(str(timer).rsplit(".", 1)[0])
 
276
 
            self.using_timer(True)
 
 
305
                message = "Denial in {0}. (a)pprove?"
 
 
306
            message = message.format(unicode(timer).rsplit(".", 1)[0])
 
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        elif self.properties["LastCheckerStatus"] != 0:
 
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            # When checker has failed, show timer until client expires
 
279
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            expires = self.properties["Expires"]
 
 
308
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        # Run update hook, if any
 
309
336
        if self.update_hook is not None:
 
310
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            self.update_hook()
 
312
339
    def update_timer(self):
 
313
 
        """called by GLib. Will indefinitely loop until
 
314
 
        GLib.source_remove() on tag is called
 
 
340
        """called by gobject. Will indefinitely loop until
 
 
341
        gobject.source_remove() on tag is called"""
 
317
343
        return True             # Keep calling this
 
319
 
    def delete(self, **kwargs):
 
 
345
    def delete(self, *args, **kwargs):
 
320
346
        if self._update_timer_callback_tag is not None:
 
321
 
            GLib.source_remove(self._update_timer_callback_tag)
 
 
347
            gobject.source_remove(self._update_timer_callback_tag)
 
322
348
            self._update_timer_callback_tag = None
 
323
349
        for match in self.match_objects:
 
325
351
        self.match_objects = ()
 
326
352
        if self.delete_hook is not None:
 
327
353
            self.delete_hook(self)
 
328
 
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
354
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
330
356
    def render(self, maxcolrow, focus=False):
 
331
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        """Render differently if we have focus.
 
332
358
        This overrides the method from urwid.FlowWidget"""
 
333
359
        return self.current_widget(focus).render(maxcolrow,
 
336
362
    def keypress(self, maxcolrow, key):
 
338
364
        This overrides the method from urwid.FlowWidget"""
 
340
 
            self.proxy.Set(client_interface, "Enabled",
 
341
 
                           dbus.Boolean(True), ignore_reply=True,
 
342
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
366
            self.proxy.Enable(dbus_interface = client_interface,
 
344
 
            self.proxy.Set(client_interface, "Enabled", False,
 
346
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
369
            self.proxy.Disable(dbus_interface = client_interface,
 
348
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            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
349
 
                               dbus_interface=client_interface,
 
 
373
                               dbus_interface = client_interface,
 
350
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                               ignore_reply=True)
 
352
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            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
353
 
                               dbus_interface=client_interface,
 
 
377
                                  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)
 
360
 
            self.proxy.Set(client_interface, "CheckerRunning",
 
361
 
                           dbus.Boolean(True), ignore_reply=True,
 
362
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
384
            self.proxy.StartChecker(dbus_interface = client_interface,
 
364
 
            self.proxy.Set(client_interface, "CheckerRunning",
 
365
 
                           dbus.Boolean(False), ignore_reply=True,
 
366
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
387
            self.proxy.StopChecker(dbus_interface = client_interface,
 
368
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
 
390
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
369
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                                 ignore_reply=True)
 
371
393
#         elif key == "p" or key == "=":
 
 
380
 
    def properties_changed(self, interface, properties, invalidated):
 
381
 
        """Call self.update() if any properties changed.
 
 
402
    def property_changed(self, property=None, value=None,
 
 
404
        """Call self.update() if old value is not new value.
 
382
405
        This overrides the method from MandosClientPropertyCache"""
 
383
 
        old_values = {key: self.properties.get(key)
 
384
 
                      for key in properties.keys()}
 
385
 
        super(MandosClientWidget, self).properties_changed(
 
386
 
            interface, properties, invalidated)
 
387
 
        if any(old_values[key] != self.properties.get(key)
 
388
 
               for key in old_values):
 
 
406
        property_name = unicode(property)
 
 
407
        old_value = self.properties.get(property_name)
 
 
408
        super(MandosClientWidget, self).property_changed(
 
 
409
            property=property, value=value, *args, **kwargs)
 
 
410
        if self.properties.get(property_name) != old_value:
 
392
 
def glib_safely(func, retval=True):
 
393
 
    def safe_func(*args, **kwargs):
 
395
 
            return func(*args, **kwargs)
 
402
414
class ConstrainedListBox(urwid.ListBox):
 
403
415
    """Like a normal urwid.ListBox, but will consume all "up" or
 
404
416
    "down" key presses, thus not allowing any containing widgets to
 
405
417
    use them as an excuse to shift focus away from this widget.
 
407
 
    def keypress(self, *args, **kwargs):
 
408
 
        ret = (super(ConstrainedListBox, self)
 
409
 
               .keypress(*args, **kwargs))
 
 
419
    def keypress(self, maxcolrow, key):
 
 
420
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
410
421
        if ret in ("up", "down"):
 
 
426
class UserInterface(object):
 
416
427
    """This is the entire user interface - the whole screen
 
417
428
    with boxes, lists of client widgets, etc.
 
419
430
    def __init__(self, max_log_length=1000):
 
420
431
        DBusGMainLoop(set_as_default=True)
 
422
433
        self.screen = urwid.curses_display.Screen()
 
424
435
        self.screen.register_palette((
 
426
437
                 "default", "default", None),
 
428
 
                 "bold", "default", "bold"),
 
 
439
                 "default", "default", "bold"),
 
429
440
                ("underline-blink",
 
430
 
                 "underline,blink", "default", "underline,blink"),
 
 
441
                 "default", "default", "underline"),
 
432
 
                 "standout", "default", "standout"),
 
 
443
                 "default", "default", "standout"),
 
433
444
                ("bold-underline-blink",
 
434
 
                 "bold,underline,blink", "default",
 
435
 
                 "bold,underline,blink"),
 
 
445
                 "default", "default", ("bold", "underline")),
 
436
446
                ("bold-standout",
 
437
 
                 "bold,standout", "default", "bold,standout"),
 
 
447
                 "default", "default", ("bold", "standout")),
 
438
448
                ("underline-blink-standout",
 
439
 
                 "underline,blink,standout", "default",
 
440
 
                 "underline,blink,standout"),
 
 
449
                 "default", "default", ("underline", "standout")),
 
441
450
                ("bold-underline-blink-standout",
 
442
 
                 "bold,underline,blink,standout", "default",
 
443
 
                 "bold,underline,blink,standout"),
 
 
451
                 "default", "default", ("bold", "underline",
 
446
455
        if urwid.supports_unicode():
 
447
 
            self.divider = "─"  # \u2500
 
 
456
            self.divider = "─" # \u2500
 
 
457
            #self.divider = "━" # \u2501
 
449
 
            self.divider = "_"  # \u005f
 
 
459
            #self.divider = "-" # \u002d
 
 
460
            self.divider = "_" # \u005f
 
451
462
        self.screen.start()
 
453
464
        self.size = self.screen.get_cols_rows()
 
455
466
        self.clients = urwid.SimpleListWalker([])
 
456
467
        self.clients_dict = {}
 
458
469
        # We will add Text widgets to this list
 
459
 
        self.log = urwid.SimpleListWalker([])
 
460
471
        self.max_log_length = max_log_length
 
462
473
        # We keep a reference to the log widget so we can remove it
 
463
474
        # from the ListWalker without it getting destroyed
 
464
475
        self.logbox = ConstrainedListBox(self.log)
 
466
477
        # This keeps track of whether self.uilist currently has
 
467
478
        # self.logbox in it or not
 
468
479
        self.log_visible = True
 
469
480
        self.log_wrap = "any"
 
471
 
        self.loghandler = UILogHandler(self)
 
474
 
        self.add_log_line(("bold",
 
475
 
                           "Mandos Monitor version " + version))
 
476
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
478
 
        self.busname = domain + ".Mandos"
 
479
 
        self.main_loop = GLib.MainLoop()
 
481
 
    def client_not_found(self, key_id, address):
 
482
 
        log.info("Client with address %s and key ID %s could"
 
483
 
                 " not be found", address, key_id)
 
 
483
        self.log_message_raw(("bold",
 
 
484
                              "Mandos Monitor version " + version))
 
 
485
        self.log_message_raw(("bold",
 
 
488
        self.busname = domain + '.Mandos'
 
 
489
        self.main_loop = gobject.MainLoop()
 
 
491
    def client_not_found(self, fingerprint, address):
 
 
492
        self.log_message("Client with address {0} and fingerprint"
 
 
493
                         " {1} could not be found"
 
 
494
                         .format(address, fingerprint))
 
485
496
    def rebuild(self):
 
486
497
        """This rebuilds the User Interface.
 
487
498
        Call this when the widget layout needs to change"""
 
489
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
 
500
        #self.uilist.append(urwid.ListBox(self.clients))
 
490
501
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
492
 
                                       # header=urwid.Divider(),
 
 
503
                                       #header=urwid.Divider(),
 
494
 
                                       footer=urwid.Divider(
 
495
 
                                           div_char=self.divider)))
 
 
506
                                       urwid.Divider(div_char=
 
496
508
        if self.log_visible:
 
497
509
            self.uilist.append(self.logbox)
 
498
510
        self.topwidget = urwid.Pile(self.uilist)
 
500
 
    def add_log_line(self, markup):
 
 
512
    def log_message(self, message):
 
 
513
        timestamp = datetime.datetime.now().isoformat()
 
 
514
        self.log_message_raw(timestamp + ": " + message)
 
 
516
    def log_message_raw(self, markup):
 
 
517
        """Add a log message to the log buffer."""
 
501
518
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
502
 
        if self.max_log_length:
 
503
 
            if len(self.log) > self.max_log_length:
 
504
 
                del self.log[0:(len(self.log) - self.max_log_length)]
 
505
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
 
519
        if (self.max_log_length
 
 
520
            and len(self.log) > self.max_log_length):
 
 
521
            del self.log[0:len(self.log)-self.max_log_length-1]
 
 
522
        self.logbox.set_focus(len(self.logbox.body.contents),
 
506
523
                              coming_from="above")
 
509
526
    def toggle_log_display(self):
 
510
527
        """Toggle visibility of the log buffer."""
 
511
528
        self.log_visible = not self.log_visible
 
513
 
        log.debug("Log visibility changed to: %s", self.log_visible)
 
 
530
        #self.log_message("Log visibility changed to: "
 
 
531
        #                 + unicode(self.log_visible))
 
515
533
    def change_log_display(self):
 
516
534
        """Change type of log display.
 
517
535
        Currently, this toggles wrapping of text lines."""
 
 
521
539
            self.log_wrap = "clip"
 
522
540
        for textwidget in self.log:
 
523
541
            textwidget.set_wrap_mode(self.log_wrap)
 
524
 
        log.debug("Wrap mode: %s", self.log_wrap)
 
526
 
    def find_and_remove_client(self, path, interfaces):
 
 
542
        #self.log_message("Wrap mode: " + self.log_wrap)
 
 
544
    def find_and_remove_client(self, path, name):
 
527
545
        """Find a client by its object path and remove it.
 
529
 
        This is connected to the InterfacesRemoved signal from the
 
 
547
        This is connected to the ClientRemoved signal from the
 
530
548
        Mandos server object."""
 
531
 
        if client_interface not in interfaces:
 
532
 
            # Not a Mandos client object; ignore
 
535
550
            client = self.clients_dict[path]
 
538
 
            log.warning("Unknown client %s removed", path)
 
 
553
            self.log_message("Unknown client {0!r} ({1!r}) removed"
 
542
 
    def add_new_client(self, path, ifs_and_props):
 
543
 
        """Find a client by its object path and remove it.
 
545
 
        This is connected to the InterfacesAdded signal from the
 
546
 
        Mandos server object.
 
548
 
        if client_interface not in ifs_and_props:
 
549
 
            # Not a Mandos client object; ignore
 
 
558
    def add_new_client(self, path):
 
551
559
        client_proxy_object = self.bus.get_object(self.busname, path)
 
552
 
        self.add_client(MandosClientWidget(
 
553
 
            server_proxy_object=self.mandos_serv,
 
554
 
            proxy_object=client_proxy_object,
 
555
 
            update_hook=self.refresh,
 
556
 
            delete_hook=self.remove_client,
 
557
 
            properties=dict(ifs_and_props[client_interface])),
 
 
560
        self.add_client(MandosClientWidget(server_proxy_object
 
 
563
                                           =client_proxy_object,
 
560
572
    def add_client(self, client, path=None):
 
561
573
        self.clients.append(client)
 
563
575
            path = client.proxy.object_path
 
564
576
        self.clients_dict[path] = client
 
565
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
 
577
        self.clients.sort(None, lambda c: c.properties["Name"])
 
568
580
    def remove_client(self, client, path=None):
 
569
581
        self.clients.remove(client)
 
571
583
            path = client.proxy.object_path
 
572
584
        del self.clients_dict[path]
 
 
585
        if not self.clients_dict:
 
 
586
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
 
587
            # is completely emptied, we need to recreate it.
 
 
588
            self.clients = urwid.SimpleListWalker([])
 
575
592
    def refresh(self):
 
576
593
        """Redraw the screen"""
 
577
594
        canvas = self.topwidget.render(self.size, focus=True)
 
578
595
        self.screen.draw_screen(self.size, canvas)
 
581
598
        """Start the main loop and exit when it's done."""
 
582
 
        log.addHandler(self.loghandler)
 
583
 
        self.orig_log_propagate = log.propagate
 
584
 
        log.propagate = False
 
585
 
        self.orig_log_level = log.level
 
587
599
        self.bus = dbus.SystemBus()
 
588
600
        mandos_dbus_objc = self.bus.get_object(
 
589
601
            self.busname, "/", follow_name_owner_changes=True)
 
590
 
        self.mandos_serv = dbus.Interface(
 
591
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
 
602
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
593
606
            mandos_clients = (self.mandos_serv
 
594
607
                              .GetAllClientsWithProperties())
 
595
 
            if not mandos_clients:
 
596
 
                log.warning("Note: Server has no clients.")
 
597
608
        except dbus.exceptions.DBusException:
 
598
 
            log.warning("Note: No Mandos server running.")
 
599
609
            mandos_clients = dbus.Dictionary()
 
601
611
        (self.mandos_serv
 
602
 
         .connect_to_signal("InterfacesRemoved",
 
 
612
         .connect_to_signal("ClientRemoved",
 
603
613
                            self.find_and_remove_client,
 
604
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
614
                            dbus_interface=server_interface,
 
605
615
                            byte_arrays=True))
 
606
616
        (self.mandos_serv
 
607
 
         .connect_to_signal("InterfacesAdded",
 
 
617
         .connect_to_signal("ClientAdded",
 
608
618
                            self.add_new_client,
 
609
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
619
                            dbus_interface=server_interface,
 
610
620
                            byte_arrays=True))
 
611
621
        (self.mandos_serv
 
612
622
         .connect_to_signal("ClientNotFound",
 
613
623
                            self.client_not_found,
 
614
624
                            dbus_interface=server_interface,
 
615
625
                            byte_arrays=True))
 
616
 
        for path, client in mandos_clients.items():
 
 
626
        for path, client in mandos_clients.iteritems():
 
617
627
            client_proxy_object = self.bus.get_object(self.busname,
 
619
 
            self.add_client(MandosClientWidget(
 
620
 
                server_proxy_object=self.mandos_serv,
 
621
 
                proxy_object=client_proxy_object,
 
623
 
                update_hook=self.refresh,
 
624
 
                delete_hook=self.remove_client),
 
 
629
            self.add_client(MandosClientWidget(server_proxy_object
 
 
632
                                               =client_proxy_object,
 
628
 
        self._input_callback_tag = (
 
630
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
631
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
632
 
                glib_safely(self.process_input)))
 
 
643
        self._input_callback_tag = (gobject.io_add_watch
 
633
647
        self.main_loop.run()
 
634
648
        # Main loop has finished, we should close everything now
 
635
 
        GLib.source_remove(self._input_callback_tag)
 
636
 
        with warnings.catch_warnings():
 
637
 
            warnings.simplefilter("ignore", BytesWarning)
 
 
649
        gobject.source_remove(self._input_callback_tag)
 
641
653
        self.main_loop.quit()
 
642
 
        log.removeHandler(self.loghandler)
 
643
 
        log.propagate = self.orig_log_propagate
 
645
655
    def process_input(self, source, condition):
 
646
656
        keys = self.screen.get_input()
 
647
 
        translations = {"ctrl n": "down",       # Emacs
 
648
 
                        "ctrl p": "up",         # Emacs
 
649
 
                        "ctrl v": "page down",  # Emacs
 
650
 
                        "meta v": "page up",    # Emacs
 
651
 
                        " ": "page down",       # less
 
652
 
                        "f": "page down",       # less
 
653
 
                        "b": "page up",         # less
 
 
657
        translations = { "ctrl n": "down",      # Emacs
 
 
658
                         "ctrl p": "up",        # Emacs
 
 
659
                         "ctrl v": "page down", # Emacs
 
 
660
                         "meta v": "page up",   # Emacs
 
 
661
                         " ": "page down",      # less
 
 
662
                         "f": "page down",      # less
 
 
663
                         "b": "page up",        # less
 
659
669
                key = translations[key]
 
660
670
            except KeyError:    # :-)
 
663
673
            if key == "q" or key == "Q":
 
666
676
            elif key == "window resize":
 
667
677
                self.size = self.screen.get_cols_rows()
 
669
 
            elif key == "ctrl l":
 
 
679
            elif key == "\f":  # Ctrl-L
 
672
681
            elif key == "l" or key == "D":
 
673
682
                self.toggle_log_display()
 
 
706
714
                    self.topwidget.set_focus(self.logbox)
 
709
 
                if log.level < logging.INFO:
 
710
 
                    log.setLevel(logging.INFO)
 
711
 
                    log.info("Verbose mode: Off")
 
713
 
                    log.setLevel(logging.NOTSET)
 
714
 
                    log.info("Verbose mode: On")
 
715
 
            # elif (key == "end" or key == "meta >" or key == "G"
 
717
 
            #     pass            # xxx end-of-buffer
 
718
 
            # elif (key == "home" or key == "meta <" or key == "g"
 
720
 
            #     pass            # xxx beginning-of-buffer
 
721
 
            # elif key == "ctrl e" or key == "$":
 
722
 
            #     pass            # xxx move-end-of-line
 
723
 
            # elif key == "ctrl a" or key == "^":
 
724
 
            #     pass            # xxx move-beginning-of-line
 
725
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
727
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
730
 
            #     pass            # scroll up log
 
732
 
            #     pass            # scroll down log
 
 
716
            #elif (key == "end" or key == "meta >" or key == "G"
 
 
718
            #    pass            # xxx end-of-buffer
 
 
719
            #elif (key == "home" or key == "meta <" or key == "g"
 
 
721
            #    pass            # xxx beginning-of-buffer
 
 
722
            #elif key == "ctrl e" or key == "$":
 
 
723
            #    pass            # xxx move-end-of-line
 
 
724
            #elif key == "ctrl a" or key == "^":
 
 
725
            #    pass            # xxx move-beginning-of-line
 
 
726
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
 
728
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
 
731
            #    pass            # scroll up log
 
 
733
            #    pass            # scroll down log
 
733
734
            elif self.topwidget.selectable():
 
734
735
                self.topwidget.keypress(self.size, key)
 
739
 
class UILogHandler(logging.Handler):
 
740
 
    def __init__(self, ui, *args, **kwargs):
 
742
 
        super(UILogHandler, self).__init__(*args, **kwargs)
 
744
 
            logging.Formatter("%(asctime)s: %(message)s"))
 
745
 
    def emit(self, record):
 
746
 
        msg = self.format(record)
 
747
 
        if record.levelno > logging.INFO:
 
749
 
        self.ui.add_log_line(msg)
 
752
739
ui = UserInterface()
 
755
742
except KeyboardInterrupt:
 
756
 
    with warnings.catch_warnings():
 
757
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
760
 
    with warnings.catch_warnings():
 
761
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
745
    ui.log_message(unicode(e))