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