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#!/usr/bin/python3 -bbI
 
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# -*- mode: python; coding: utf-8 -*-
 
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# Mandos Monitor - Control and monitor the Mandos server
 
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# Copyright © 2009-2011 Teddy Hogeborn
 
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# Copyright © 2009-2011 Björn Påhlsson
 
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# This program is free software: you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
 
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# Copyright © 2009-2019 Teddy Hogeborn
 
 
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# Copyright © 2009-2019 Björn Påhlsson
 
 
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# This file is part of Mandos.
 
 
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# Mandos is free software: you can redistribute it and/or modify it
 
 
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# under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation, either version 3 of the License, or
 
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# (at your option) any later version.
 
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#     This program is distributed in the hope that it will be useful,
 
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#     but WITHOUT ANY WARRANTY; without even the implied warranty of
 
 
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#     Mandos is distributed in the hope that it will be useful, but
 
 
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#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
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#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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#     GNU General Public License for more details.
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
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# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
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# Contact the authors at <mandos@recompile.se>.
 
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from __future__ import (division, absolute_import, print_function,
 
 
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    from future_builtins import *
 
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import urwid.curses_display
 
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from dbus.mainloop.glib import DBusGMainLoop
 
 
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from gi.repository import GLib
 
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locale.setlocale(locale.LC_ALL, '')
 
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logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
 
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if sys.version_info.major == 2:
 
 
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log = logging.getLogger(os.path.basename(sys.argv[0]))
 
 
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logging.basicConfig(level="NOTSET", # Show all messages
 
 
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                    format="%(message)s") # Show basic log messages
 
 
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logging.captureWarnings(True)   # Show warnings via the logging system
 
 
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locale.setlocale(locale.LC_ALL, "")
 
 
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logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
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# Some useful constants
 
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domain = 'se.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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domain = "se.recompile"
 
 
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server_interface = domain + ".Mandos"
 
 
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client_interface = domain + ".Mandos.Client"
 
 
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    dbus.OBJECT_MANAGER_IFACE
 
 
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except AttributeError:
 
 
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    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
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def isoformat_to_datetime(iso):
 
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    "Parse an ISO 8601 date string to a datetime.datetime()"
 
 
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                             int(second),           # Whole seconds
 
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                             int(fraction*1000000)) # Microseconds
 
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class MandosClientPropertyCache(object):
 
 
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                             int(second),            # Whole seconds
 
 
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                             int(fraction*1000000))  # Microseconds
 
 
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class MandosClientPropertyCache:
 
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    """This wraps a Mandos Client D-Bus proxy object, caches the
 
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    properties and calls a hook function when any of them are
 
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    def __init__(self, proxy_object=None, *args, **kwargs):
 
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        self.proxy = proxy_object # Mandos Client proxy object
 
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        self.properties = dict()
 
 
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    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
 
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        self.proxy = proxy_object  # Mandos Client proxy object
 
 
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        self.properties = dict() if properties is None else properties
 
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        self.property_changed_match = (
 
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            self.proxy.connect_to_signal("PropertyChanged",
 
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                                         self.property_changed,
 
 
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            self.proxy.connect_to_signal("PropertiesChanged",
 
 
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                                         self.properties_changed,
 
 
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                                         dbus.PROPERTIES_IFACE,
 
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                                         byte_arrays=True))
 
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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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        if properties is None:
 
 
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            self.properties.update(self.proxy.GetAll(
 
 
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                dbus_interface=dbus.PROPERTIES_IFACE))
 
 
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        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
 
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    def properties_changed(self, interface, properties, invalidated):
 
 
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        """This is called whenever we get a PropertiesChanged signal
 
 
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        It updates the changed properties in the "properties" dict.
 
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        # Update properties dict with new value
 
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        self.properties[property] = value
 
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    def delete(self, *args, **kwargs):
 
 
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        if interface == client_interface:
 
 
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            self.properties.update(properties)
 
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        self.property_changed_match.remove()
 
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        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, logger=None, *args, **kwargs):
 
 
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                 delete_hook=None, **kwargs):
 
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        # Called on update
 
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        self.update_hook = update_hook
 
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        # Called on delete
 
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        self.delete_hook = delete_hook
 
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        # Mandos Server proxy object
 
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        self.server_proxy_object = server_proxy_object
 
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        self._update_timer_callback_tag = None
 
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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("")
 
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        super(MandosClientWidget, self).__init__(
 
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            update_hook=update_hook, delete_hook=delete_hook,
 
 
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        super(MandosClientWidget, self).__init__(**kwargs)
 
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        self.opened = False
 
146
 
        last_checked_ok = isoformat_to_datetime(self.properties
 
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        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)
 
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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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        #self.logger('Created client %s' % (self.properties["Name"]))
 
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    def property_changed(self, property=None, value=None):
 
188
 
        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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        log.debug("Created client %s", self.properties["Name"])
 
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    def using_timer(self, flag):
 
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        """Call this method with True or False when timer should be
 
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        activated or deactivated.
 
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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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        if flag and self._update_timer_callback_tag is None:
 
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            # Will update the shown timer value every second
 
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            self._update_timer_callback_tag = (gobject.timeout_add
 
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        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 = (
 
 
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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 = None
 
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    def checker_completed(self, exitstatus, condition, command):
 
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        if exitstatus == 0:
 
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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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            log.debug('Checker for client %s (command "%s")'
 
 
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                      " succeeded", 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):
 
226
 
            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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            log.info('Checker for client %s (command "%s") failed'
 
 
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                     " with exit code %d", self.properties["Name"],
 
 
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                     command, os.WEXITSTATUS(condition))
 
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        elif os.WIFSIGNALED(condition):
 
231
 
            self.logger('Checker for client %s (command "%s")'
 
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                        ' was killed by signal %s'
 
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                        % (self.properties["Name"], command,
 
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                           os.WTERMSIG(condition)))
 
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        elif os.WCOREDUMP(condition):
 
236
 
            self.logger('Checker for client %s (command "%s")'
 
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                        % (self.properties["Name"], command))
 
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            self.logger('Checker for client %s completed'
 
 
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            log.info('Checker for client %s (command "%s") was'
 
 
197
                     " killed by signal %d", self.properties["Name"],
 
 
198
                     command, os.WTERMSIG(condition))
 
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    def checker_started(self, command):
 
245
 
        #self.logger('Client %s started checker "%s"'
 
246
 
        #            % (self.properties["Name"], unicode(command)))
 
 
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        """Server signals that a checker started."""
 
 
203
        log.debug('Client %s started checker "%s"',
 
 
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                  self.properties["Name"], command)
 
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    def got_secret(self):
 
250
 
        self.last_checker_failed = False
 
251
 
        self.logger('Client %s received its secret'
 
252
 
                    % self.properties["Name"])
 
 
207
        log.info("Client %s received its secret",
 
 
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                 self.properties["Name"])
 
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    def need_approval(self, timeout, default):
 
256
 
            message = 'Client %s needs approval within %s seconds'
 
 
212
            message = "Client %s needs approval within %f seconds"
 
258
 
            message = 'Client %s will get its secret in %s seconds'
 
260
 
                    % (self.properties["Name"], timeout/1000))
 
261
 
        self.using_timer(True)
 
 
214
            message = "Client %s will get its secret in %f seconds"
 
 
215
        log.info(message, self.properties["Name"], timeout/1000)
 
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    def rejected(self, reason):
 
264
 
        self.logger('Client %s was rejected; reason: %s'
 
265
 
                    % (self.properties["Name"], reason))
 
 
218
        log.info("Client %s was rejected; reason: %s",
 
 
219
                 self.properties["Name"], reason)
 
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    def selectable(self):
 
268
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        """Make this a "selectable" widget.
 
269
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        This overrides the method from urwid.FlowWidget."""
 
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    def rows(self, maxcolrow, focus=False):
 
273
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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"""
 
276
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        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
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    def current_widget(self, focus=False):
 
279
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        if focus or self.opened:
 
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            return self._focus_widget
 
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        return self._widget
 
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    def update(self):
 
284
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        "Called when what is visible on the screen should be updated."
 
285
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        # How to add standout mode to a style
 
286
 
        with_standout = { "normal": "standout",
 
287
 
                          "bold": "bold-standout",
 
289
 
                              "underline-blink-standout",
 
290
 
                          "bold-underline-blink":
 
291
 
                              "bold-underline-blink-standout",
 
 
240
        with_standout = {"normal": "standout",
 
 
241
                         "bold": "bold-standout",
 
 
243
                         "underline-blink-standout",
 
 
244
                         "bold-underline-blink":
 
 
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                         "bold-underline-blink-standout",
 
294
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        # Rebuild focus and non-focus widgets using current properties
 
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        # Base part of a client. Name!
 
298
 
                      % {"name": self.properties["Name"]})
 
 
251
        base = "{name}: ".format(name=self.properties["Name"])
 
299
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        if not self.properties["Enabled"]:
 
300
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            message = "DISABLED"
 
 
254
            self.using_timer(False)
 
301
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        elif self.properties["ApprovalPending"]:
 
302
 
            timeout = datetime.timedelta(milliseconds
 
 
256
            timeout = datetime.timedelta(
 
 
257
                milliseconds=self.properties["ApprovalDelay"])
 
305
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            last_approval_request = isoformat_to_datetime(
 
306
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                self.properties["LastApprovalRequest"])
 
307
260
            if last_approval_request is not None:
 
308
 
                timer = timeout - (datetime.datetime.utcnow()
 
309
 
                                   - last_approval_request)
 
 
261
                timer = max(timeout - (datetime.datetime.utcnow()
 
 
262
                                       - last_approval_request),
 
 
263
                            datetime.timedelta())
 
311
265
                timer = datetime.timedelta()
 
312
266
            if self.properties["ApprovedByDefault"]:
 
313
 
                message = "Approval in %s. (d)eny?"
 
 
267
                message = "Approval in {}. (d)eny?"
 
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
 
 
269
                message = "Denial in {}. (a)pprove?"
 
 
270
            message = message.format(str(timer).rsplit(".", 1)[0])
 
 
271
            self.using_timer(True)
 
 
272
        elif self.properties["LastCheckerStatus"] != 0:
 
 
273
            # When checker has failed, show timer until client expires
 
319
274
            expires = self.properties["Expires"]
 
320
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            if expires == "":
 
321
276
                timer = datetime.timedelta(0)
 
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])
 
 
278
                expires = (datetime.datetime.strptime
 
 
279
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
 
280
                timer = max(expires - datetime.datetime.utcnow(),
 
 
281
                            datetime.timedelta())
 
 
282
            message = ("A checker has failed! Time until client"
 
 
284
                       .format(str(timer).rsplit(".", 1)[0]))
 
 
285
            self.using_timer(True)
 
330
287
            message = "enabled"
 
331
 
        self._text = "%s%s" % (base, message)
 
 
288
            self.using_timer(False)
 
 
289
        self._text = "{}{}".format(base, message)
 
333
291
        if not urwid.supports_unicode():
 
334
292
            self._text = self._text.encode("ascii", "replace")
 
335
293
        textlist = [("normal", self._text)]
 
 
345
303
        # Run update hook, if any
 
346
304
        if self.update_hook is not None:
 
347
305
            self.update_hook()
 
349
307
    def update_timer(self):
 
350
 
        """called by gobject. Will indefinitely loop until
 
351
 
        gobject.source_remove() on tag is called"""
 
 
308
        """called by GLib. Will indefinitely loop until
 
 
309
        GLib.source_remove() on tag is called
 
353
312
        return True             # Keep calling this
 
355
 
    def delete(self, *args, **kwargs):
 
 
314
    def delete(self, **kwargs):
 
356
315
        if self._update_timer_callback_tag is not None:
 
357
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
316
            GLib.source_remove(self._update_timer_callback_tag)
 
358
317
            self._update_timer_callback_tag = None
 
359
318
        for match in self.match_objects:
 
361
320
        self.match_objects = ()
 
362
321
        if self.delete_hook is not None:
 
363
322
            self.delete_hook(self)
 
364
 
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
 
323
        return super(MandosClientWidget, self).delete(**kwargs)
 
366
325
    def render(self, maxcolrow, focus=False):
 
367
326
        """Render differently if we have focus.
 
368
327
        This overrides the method from urwid.FlowWidget"""
 
369
328
        return self.current_widget(focus).render(maxcolrow,
 
372
331
    def keypress(self, maxcolrow, key):
 
374
333
        This overrides the method from urwid.FlowWidget"""
 
376
 
            self.proxy.Enable(dbus_interface = client_interface,
 
 
335
            self.proxy.Set(client_interface, "Enabled",
 
 
336
                           dbus.Boolean(True), ignore_reply=True,
 
 
337
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
379
 
            self.proxy.Disable(dbus_interface = client_interface,
 
 
339
            self.proxy.Set(client_interface, "Enabled", False,
 
 
341
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
382
343
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
383
 
                               dbus_interface = client_interface,
 
 
344
                               dbus_interface=client_interface,
 
384
345
                               ignore_reply=True)
 
386
347
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
387
 
                                  dbus_interface = client_interface,
 
 
348
                               dbus_interface=client_interface,
 
388
349
                               ignore_reply=True)
 
389
350
        elif key == "R" or key == "_" or key == "ctrl k":
 
390
351
            self.server_proxy_object.RemoveClient(self.proxy
 
392
353
                                                  ignore_reply=True)
 
394
 
            self.proxy.StartChecker(dbus_interface = client_interface,
 
 
355
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
356
                           dbus.Boolean(True), ignore_reply=True,
 
 
357
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
397
 
            self.proxy.StopChecker(dbus_interface = client_interface,
 
 
359
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
360
                           dbus.Boolean(False), ignore_reply=True,
 
 
361
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
400
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
 
363
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
401
364
                                 ignore_reply=True)
 
403
366
#         elif key == "p" or key == "=":
 
 
412
 
    def property_changed(self, property=None, value=None,
 
414
 
        """Call self.update() if old value is not new value.
 
 
375
    def properties_changed(self, interface, properties, invalidated):
 
 
376
        """Call self.update() if any properties changed.
 
415
377
        This overrides the method from MandosClientPropertyCache"""
 
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:
 
 
378
        old_values = {key: self.properties.get(key)
 
 
379
                      for key in properties.keys()}
 
 
380
        super(MandosClientWidget, self).properties_changed(
 
 
381
            interface, properties, invalidated)
 
 
382
        if any(old_values[key] != self.properties.get(key)
 
 
383
               for key in old_values):
 
 
387
def glib_safely(func, retval=True):
 
 
388
    def safe_func(*args, **kwargs):
 
 
390
            return func(*args, **kwargs)
 
424
397
class ConstrainedListBox(urwid.ListBox):
 
425
398
    """Like a normal urwid.ListBox, but will consume all "up" or
 
426
399
    "down" key presses, thus not allowing any containing widgets to
 
427
400
    use them as an excuse to shift focus away from this widget.
 
429
 
    def keypress(self, maxcolrow, key):
 
430
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
 
402
    def keypress(self, *args, **kwargs):
 
 
403
        ret = (super(ConstrainedListBox, self)
 
 
404
               .keypress(*args, **kwargs))
 
431
405
        if ret in ("up", "down"):
 
436
 
class UserInterface(object):
 
437
411
    """This is the entire user interface - the whole screen
 
438
412
    with boxes, lists of client widgets, etc.
 
440
414
    def __init__(self, max_log_length=1000):
 
441
415
        DBusGMainLoop(set_as_default=True)
 
443
417
        self.screen = urwid.curses_display.Screen()
 
445
419
        self.screen.register_palette((
 
447
421
                 "default", "default", None),
 
449
 
                 "default", "default", "bold"),
 
 
423
                 "bold", "default", "bold"),
 
450
424
                ("underline-blink",
 
451
 
                 "default", "default", "underline"),
 
 
425
                 "underline,blink", "default", "underline,blink"),
 
453
 
                 "default", "default", "standout"),
 
 
427
                 "standout", "default", "standout"),
 
454
428
                ("bold-underline-blink",
 
455
 
                 "default", "default", ("bold", "underline")),
 
 
429
                 "bold,underline,blink", "default",
 
 
430
                 "bold,underline,blink"),
 
456
431
                ("bold-standout",
 
457
 
                 "default", "default", ("bold", "standout")),
 
 
432
                 "bold,standout", "default", "bold,standout"),
 
458
433
                ("underline-blink-standout",
 
459
 
                 "default", "default", ("underline", "standout")),
 
 
434
                 "underline,blink,standout", "default",
 
 
435
                 "underline,blink,standout"),
 
460
436
                ("bold-underline-blink-standout",
 
461
 
                 "default", "default", ("bold", "underline",
 
 
437
                 "bold,underline,blink,standout", "default",
 
 
438
                 "bold,underline,blink,standout"),
 
465
441
        if urwid.supports_unicode():
 
466
 
            self.divider = "─" # \u2500
 
467
 
            #self.divider = "━" # \u2501
 
 
442
            self.divider = "─"  # \u2500
 
469
 
            #self.divider = "-" # \u002d
 
470
 
            self.divider = "_" # \u005f
 
 
444
            self.divider = "_"  # \u005f
 
472
446
        self.screen.start()
 
474
448
        self.size = self.screen.get_cols_rows()
 
476
450
        self.clients = urwid.SimpleListWalker([])
 
477
451
        self.clients_dict = {}
 
479
453
        # We will add Text widgets to this list
 
 
454
        self.log = urwid.SimpleListWalker([])
 
481
455
        self.max_log_length = max_log_length
 
483
457
        # We keep a reference to the log widget so we can remove it
 
484
458
        # from the ListWalker without it getting destroyed
 
485
459
        self.logbox = ConstrainedListBox(self.log)
 
487
461
        # This keeps track of whether self.uilist currently has
 
488
462
        # self.logbox in it or not
 
489
463
        self.log_visible = True
 
490
464
        self.log_wrap = "any"
 
 
466
        self.loghandler = UILogHandler(self)
 
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,
 
 
469
        self.add_log_line(("bold",
 
 
470
                           "Mandos Monitor version " + version))
 
 
471
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
 
473
        self.busname = domain + ".Mandos"
 
 
474
        self.main_loop = GLib.MainLoop()
 
 
476
    def client_not_found(self, key_id, address):
 
 
477
        log.info("Client with address %s and key ID %s could"
 
 
478
                 " not be found", address, key_id)
 
548
480
    def rebuild(self):
 
549
481
        """This rebuilds the User Interface.
 
550
482
        Call this when the widget layout needs to change"""
 
552
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
 
484
        # self.uilist.append(urwid.ListBox(self.clients))
 
553
485
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
555
 
                                       #header=urwid.Divider(),
 
 
487
                                       # header=urwid.Divider(),
 
558
 
                                       urwid.Divider(div_char=
 
 
489
                                       footer=urwid.Divider(
 
 
490
                                           div_char=self.divider)))
 
560
491
        if self.log_visible:
 
561
492
            self.uilist.append(self.logbox)
 
563
493
        self.topwidget = urwid.Pile(self.uilist)
 
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
    def add_log_line(self, markup):
 
571
496
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
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),
 
 
497
        if self.max_log_length:
 
 
498
            if len(self.log) > self.max_log_length:
 
 
499
                del self.log[0:(len(self.log) - self.max_log_length)]
 
 
500
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
576
501
                              coming_from="above")
 
579
504
    def toggle_log_display(self):
 
580
505
        """Toggle visibility of the log buffer."""
 
581
506
        self.log_visible = not self.log_visible
 
583
 
        #self.log_message("Log visibility changed to: "
 
584
 
        #                 + unicode(self.log_visible))
 
 
508
        log.debug("Log visibility changed to: %s", self.log_visible)
 
586
510
    def change_log_display(self):
 
587
511
        """Change type of log display.
 
588
512
        Currently, this toggles wrapping of text lines."""
 
 
592
516
            self.log_wrap = "clip"
 
593
517
        for textwidget in self.log:
 
594
518
            textwidget.set_wrap_mode(self.log_wrap)
 
595
 
        #self.log_message("Wrap mode: " + self.log_wrap)
 
597
 
    def find_and_remove_client(self, path, name):
 
 
519
        log.debug("Wrap mode: %s", self.log_wrap)
 
 
521
    def find_and_remove_client(self, path, interfaces):
 
598
522
        """Find a client by its object path and remove it.
 
600
 
        This is connected to the ClientRemoved signal from the
 
 
524
        This is connected to the InterfacesRemoved signal from the
 
601
525
        Mandos server object."""
 
 
526
        if client_interface not in interfaces:
 
 
527
            # Not a Mandos client object; ignore
 
603
530
            client = self.clients_dict[path]
 
606
 
            self.log_message("Unknown client %r (%r) removed", name,
 
 
533
            log.warning("Unknown client %s removed", path)
 
611
 
    def add_new_client(self, path):
 
 
537
    def add_new_client(self, path, ifs_and_props):
 
 
538
        """Find a client by its object path and remove it.
 
 
540
        This is connected to the InterfacesAdded signal from the
 
 
541
        Mandos server object.
 
 
543
        if client_interface not in ifs_and_props:
 
 
544
            # Not a Mandos client object; ignore
 
612
546
        client_proxy_object = self.bus.get_object(self.busname, path)
 
613
 
        self.add_client(MandosClientWidget(server_proxy_object
 
616
 
                                           =client_proxy_object,
 
 
547
        self.add_client(MandosClientWidget(
 
 
548
            server_proxy_object=self.mandos_serv,
 
 
549
            proxy_object=client_proxy_object,
 
 
550
            update_hook=self.refresh,
 
 
551
            delete_hook=self.remove_client,
 
 
552
            properties=dict(ifs_and_props[client_interface])),
 
625
555
    def add_client(self, client, path=None):
 
626
556
        self.clients.append(client)
 
628
558
            path = client.proxy.object_path
 
629
559
        self.clients_dict[path] = client
 
630
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
 
560
        self.clients.sort(key=lambda c: c.properties["Name"])
 
633
563
    def remove_client(self, client, path=None):
 
634
564
        self.clients.remove(client)
 
636
566
            path = client.proxy.object_path
 
637
567
        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([])
 
645
570
    def refresh(self):
 
646
571
        """Redraw the screen"""
 
647
572
        canvas = self.topwidget.render(self.size, focus=True)
 
648
573
        self.screen.draw_screen(self.size, canvas)
 
651
576
        """Start the main loop and exit when it's done."""
 
 
577
        log.addHandler(self.loghandler)
 
 
578
        self.orig_log_propagate = log.propagate
 
 
579
        log.propagate = False
 
 
580
        self.orig_log_level = log.level
 
 
582
        self.bus = dbus.SystemBus()
 
 
583
        mandos_dbus_objc = self.bus.get_object(
 
 
584
            self.busname, "/", follow_name_owner_changes=True)
 
 
585
        self.mandos_serv = dbus.Interface(
 
 
586
            mandos_dbus_objc, dbus_interface=server_interface)
 
 
588
            mandos_clients = (self.mandos_serv
 
 
589
                              .GetAllClientsWithProperties())
 
 
590
            if not mandos_clients:
 
 
591
                log.warning("Note: Server has no clients.")
 
 
592
        except dbus.exceptions.DBusException:
 
 
593
            log.warning("Note: No Mandos server running.")
 
 
594
            mandos_clients = dbus.Dictionary()
 
 
597
         .connect_to_signal("InterfacesRemoved",
 
 
598
                            self.find_and_remove_client,
 
 
599
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
602
         .connect_to_signal("InterfacesAdded",
 
 
604
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
607
         .connect_to_signal("ClientNotFound",
 
 
608
                            self.client_not_found,
 
 
609
                            dbus_interface=server_interface,
 
 
611
        for path, client in mandos_clients.items():
 
 
612
            client_proxy_object = self.bus.get_object(self.busname,
 
 
614
            self.add_client(MandosClientWidget(
 
 
615
                server_proxy_object=self.mandos_serv,
 
 
616
                proxy_object=client_proxy_object,
 
 
618
                update_hook=self.refresh,
 
 
619
                delete_hook=self.remove_client),
 
653
 
        self._input_callback_tag = (gobject.io_add_watch
 
 
623
        self._input_callback_tag = (
 
 
625
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
 
626
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
 
627
                glib_safely(self.process_input)))
 
657
628
        self.main_loop.run()
 
658
629
        # Main loop has finished, we should close everything now
 
659
 
        gobject.source_remove(self._input_callback_tag)
 
 
630
        GLib.source_remove(self._input_callback_tag)
 
 
631
        with warnings.catch_warnings():
 
 
632
            warnings.simplefilter("ignore", BytesWarning)
 
663
636
        self.main_loop.quit()
 
 
637
        log.removeHandler(self.loghandler)
 
 
638
        log.propagate = self.orig_log_propagate
 
665
640
    def process_input(self, source, condition):
 
666
641
        keys = self.screen.get_input()
 
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
 
 
642
        translations = {"ctrl n": "down",       # Emacs
 
 
643
                        "ctrl p": "up",         # Emacs
 
 
644
                        "ctrl v": "page down",  # Emacs
 
 
645
                        "meta v": "page up",    # Emacs
 
 
646
                        " ": "page down",       # less
 
 
647
                        "f": "page down",       # less
 
 
648
                        "b": "page up",         # less
 
679
654
                key = translations[key]
 
680
655
            except KeyError:    # :-)
 
683
658
            if key == "q" or key == "Q":
 
686
661
            elif key == "window resize":
 
687
662
                self.size = self.screen.get_cols_rows()
 
689
 
            elif key == "\f":  # Ctrl-L
 
 
664
            elif key == "ctrl l":
 
691
667
            elif key == "l" or key == "D":
 
692
668
                self.toggle_log_display()
 
 
724
701
                    self.topwidget.set_focus(self.logbox)
 
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
 
 
704
                if log.level < logging.INFO:
 
 
705
                    log.setLevel(logging.INFO)
 
 
706
                    log.info("Verbose mode: Off")
 
 
708
                    log.setLevel(logging.NOTSET)
 
 
709
                    log.info("Verbose mode: On")
 
 
710
            # elif (key == "end" or key == "meta >" or key == "G"
 
 
712
            #     pass            # xxx end-of-buffer
 
 
713
            # elif (key == "home" or key == "meta <" or key == "g"
 
 
715
            #     pass            # xxx beginning-of-buffer
 
 
716
            # elif key == "ctrl e" or key == "$":
 
 
717
            #     pass            # xxx move-end-of-line
 
 
718
            # elif key == "ctrl a" or key == "^":
 
 
719
            #     pass            # xxx move-beginning-of-line
 
 
720
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
 
722
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
 
725
            #     pass            # scroll up log
 
 
727
            #     pass            # scroll down log
 
744
728
            elif self.topwidget.selectable():
 
745
729
                self.topwidget.keypress(self.size, key)
 
 
734
class UILogHandler(logging.Handler):
 
 
735
    def __init__(self, ui, *args, **kwargs):
 
 
737
        super(UILogHandler, self).__init__(*args, **kwargs)
 
 
739
            logging.Formatter("%(asctime)s: %(message)s"))
 
 
740
    def emit(self, record):
 
 
741
        msg = self.format(record)
 
 
742
        if record.levelno > logging.INFO:
 
 
744
        self.ui.add_log_line(msg)
 
749
747
ui = UserInterface()
 
752
750
except KeyboardInterrupt:
 
755
 
    ui.log_message(unicode(e))
 
 
751
    with warnings.catch_warnings():
 
 
752
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
755
    with warnings.catch_warnings():
 
 
756
        warnings.filterwarnings("ignore", "", BytesWarning)