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#!/usr/bin/python3 -bbI
 
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# -*- mode: python; coding: utf-8 -*-
 
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# Mandos Monitor - Control and monitor the Mandos server
 
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# Copyright © 2009-2019 Teddy Hogeborn
 
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# Copyright © 2009-2019 Björn Påhlsson
 
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# This file is part of Mandos.
 
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# Mandos is free software: you can redistribute it and/or modify it
 
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# under the terms of the GNU General Public License as published by
 
 
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# Copyright © 2009-2011 Teddy Hogeborn
 
 
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# Copyright © 2009-2011 Björn Påhlsson
 
 
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# This program is free software: you can redistribute it and/or modify
 
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation, either version 3 of the License, or
 
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# (at your option) any later version.
 
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#     Mandos is distributed in the hope that it will be useful, but
 
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#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
 
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#     This program is distributed in the hope that it will be useful,
 
 
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#     but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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#     GNU General Public License for more details.
 
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# You should have received a copy of the GNU General Public License
 
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# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
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# Contact the authors at <mandos@recompile.se>.
 
 
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# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
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# Contact the authors at <mandos@fukt.bsnet.se>.
 
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from __future__ import (division, absolute_import, print_function,
 
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    from future_builtins import *
 
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import urwid.curses_display
 
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from dbus.mainloop.glib import DBusGMainLoop
 
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from gi.repository import GLib
 
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if sys.version_info.major == 2:
 
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# Show warnings by default
 
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if not sys.warnoptions:
 
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    warnings.simplefilter("default")
 
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log = logging.getLogger(os.path.basename(sys.argv[0]))
 
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logging.basicConfig(level="NOTSET", # Show all messages
 
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                    format="%(message)s") # Show basic log messages
 
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logging.captureWarnings(True)   # Show warnings via the logging system
 
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locale.setlocale(locale.LC_ALL, "")
 
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logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
 
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locale.setlocale(locale.LC_ALL, '')
 
 
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logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
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# Some useful constants
 
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domain = "se.recompile"
 
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server_interface = domain + ".Mandos"
 
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client_interface = domain + ".Mandos.Client"
 
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    dbus.OBJECT_MANAGER_IFACE
 
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except AttributeError:
 
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    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
 
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domain = 'se.bsnet.fukt'
 
 
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server_interface = domain + '.Mandos'
 
 
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client_interface = domain + '.Mandos.Client'
 
 
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# Always run in monochrome mode
 
 
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urwid.curses_display.curses.has_colors = lambda : False
 
 
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# Urwid doesn't support blinking, but we want it.  Since we have no
 
 
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# use for underline on its own, we make underline also always blink.
 
 
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urwid.curses_display.curses.A_UNDERLINE |= (
 
 
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    urwid.curses_display.curses.A_BLINK)
 
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def isoformat_to_datetime(iso):
 
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    "Parse an ISO 8601 date string to a datetime.datetime()"
 
 
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                             int(second),            # Whole seconds
 
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                             int(fraction*1000000))  # Microseconds
 
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class MandosClientPropertyCache:
 
 
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                             int(second),           # Whole seconds
 
 
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                             int(fraction*1000000)) # Microseconds
 
 
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class MandosClientPropertyCache(object):
 
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    """This wraps a Mandos Client D-Bus proxy object, caches the
 
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    properties and calls a hook function when any of them are
 
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    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
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        self.proxy = proxy_object  # Mandos Client proxy object
 
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        self.properties = dict() if properties is None else properties
 
 
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    def __init__(self, proxy_object=None, *args, **kwargs):
 
 
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        self.proxy = proxy_object # Mandos Client proxy object
 
 
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        self.properties = dict()
 
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        self.property_changed_match = (
 
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            self.proxy.connect_to_signal("PropertiesChanged",
 
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                                         self.properties_changed,
 
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                                         dbus.PROPERTIES_IFACE,
 
 
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            self.proxy.connect_to_signal("PropertyChanged",
 
 
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                                         self.property_changed,
 
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                                         byte_arrays=True))
 
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        if properties is None:
 
112
 
            self.properties.update(self.proxy.GetAll(
 
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                dbus_interface=dbus.PROPERTIES_IFACE))
 
116
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
118
 
    def properties_changed(self, interface, properties, invalidated):
 
119
 
        """This is called whenever we get a PropertiesChanged signal
 
120
 
        It updates the changed properties in the "properties" dict.
 
 
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        self.properties.update(
 
 
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            self.proxy.GetAll(client_interface,
 
 
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                              dbus_interface = dbus.PROPERTIES_IFACE))
 
 
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        #XXX This breaks good super behaviour
 
 
101
#        super(MandosClientPropertyCache, self).__init__(
 
 
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    def property_changed(self, property=None, value=None):
 
 
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        """This is called whenever we get a PropertyChanged signal
 
 
106
        It updates the changed property in the "properties" dict.
 
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        # Update properties dict with new value
 
123
 
        if interface == client_interface:
 
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            self.properties.update(properties)
 
 
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        self.properties[property] = value
 
 
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    def delete(self, *args, **kwargs):
 
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        self.property_changed_match.remove()
 
 
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        super(MandosClientPropertyCache, self).__init__(
 
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class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
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    """A Mandos Client which is visible on the screen.
 
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    def __init__(self, server_proxy_object=None, update_hook=None,
 
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                 delete_hook=None, **kwargs):
 
 
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                 delete_hook=None, logger=None, *args, **kwargs):
 
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        # Called on update
 
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        self.update_hook = update_hook
 
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        # Called on delete
 
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        self.delete_hook = delete_hook
 
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        # Mandos Server proxy object
 
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        self.server_proxy_object = server_proxy_object
 
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        self._update_timer_callback_tag = None
 
 
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        self._update_timer_callback_lock = 0
 
 
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        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("")
 
149
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
 
140
        super(MandosClientWidget, self).__init__(
 
 
141
            update_hook=update_hook, delete_hook=delete_hook,
 
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        self.opened = False
 
 
146
        last_checked_ok = isoformat_to_datetime(self.properties
 
 
148
        if last_checked_ok is None:
 
 
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            self.last_checker_failed = True
 
 
151
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
 
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        if self.last_checker_failed:
 
 
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            self.using_timer(True)
 
 
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        if self.need_approval:
 
 
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            self.using_timer(True)
 
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        self.match_objects = (
 
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            self.proxy.connect_to_signal("CheckerCompleted",
 
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                                         self.checker_completed,
 
 
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                                         client_interface,
 
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                                         byte_arrays=True))
 
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        log.debug("Created client %s", self.properties["Name"])
 
 
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        #self.logger('Created client %s' % (self.properties["Name"]))
 
 
187
    def property_changed(self, property=None, value=None):
 
 
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        super(self, MandosClientWidget).property_changed(property,
 
 
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        if property == "ApprovalPending":
 
 
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            using_timer(bool(value))
 
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    def using_timer(self, flag):
 
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        """Call this method with True or False when timer should be
 
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        activated or deactivated.
 
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        if flag and self._update_timer_callback_tag is None:
 
 
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        old = self._update_timer_callback_lock
 
 
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            self._update_timer_callback_lock += 1
 
 
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            self._update_timer_callback_lock -= 1
 
 
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        if old == 0 and self._update_timer_callback_lock:
 
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            # Will update the shown timer value every second
 
182
 
            self._update_timer_callback_tag = (
 
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                GLib.timeout_add(1000,
 
184
 
                                 glib_safely(self.update_timer)))
 
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        elif not (flag or self._update_timer_callback_tag is None):
 
186
 
            GLib.source_remove(self._update_timer_callback_tag)
 
 
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            self._update_timer_callback_tag = (gobject.timeout_add
 
 
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        elif old and self._update_timer_callback_lock == 0:
 
 
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            gobject.source_remove(self._update_timer_callback_tag)
 
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            self._update_timer_callback_tag = None
 
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    def checker_completed(self, exitstatus, condition, command):
 
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        if exitstatus == 0:
 
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            log.debug('Checker for client %s (command "%s")'
 
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                      " succeeded", self.properties["Name"], command)
 
 
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            if self.last_checker_failed:
 
 
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                self.last_checker_failed = False
 
 
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                self.using_timer(False)
 
 
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            #self.logger('Checker for client %s (command "%s")'
 
 
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            #            % (self.properties["Name"], command))
 
 
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        if not self.last_checker_failed:
 
 
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            self.last_checker_failed = True
 
 
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            self.using_timer(True)
 
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        if os.WIFEXITED(condition):
 
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            log.info('Checker for client %s (command "%s") failed'
 
198
 
                     " with exit code %d", self.properties["Name"],
 
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                     command, os.WEXITSTATUS(condition))
 
 
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            self.logger('Checker for client %s (command "%s")'
 
 
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                        ' failed with exit code %s'
 
 
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                        % (self.properties["Name"], command,
 
 
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                           os.WEXITSTATUS(condition)))
 
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        elif os.WIFSIGNALED(condition):
 
201
 
            log.info('Checker for client %s (command "%s") was'
 
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                     " killed by signal %d", self.properties["Name"],
 
203
 
                     command, os.WTERMSIG(condition))
 
 
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            self.logger('Checker for client %s (command "%s")'
 
 
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                        ' was killed by signal %s'
 
 
233
                        % (self.properties["Name"], command,
 
 
234
                           os.WTERMSIG(condition)))
 
 
235
        elif os.WCOREDUMP(condition):
 
 
236
            self.logger('Checker for client %s (command "%s")'
 
 
238
                        % (self.properties["Name"], command))
 
 
240
            self.logger('Checker for client %s completed'
 
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    def checker_started(self, command):
 
207
 
        """Server signals that a checker started."""
 
208
 
        log.debug('Client %s started checker "%s"',
 
209
 
                  self.properties["Name"], command)
 
 
245
        #self.logger('Client %s started checker "%s"'
 
 
246
        #            % (self.properties["Name"], unicode(command)))
 
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    def got_secret(self):
 
212
 
        log.info("Client %s received its secret",
 
213
 
                 self.properties["Name"])
 
 
250
        self.last_checker_failed = False
 
 
251
        self.logger('Client %s received its secret'
 
 
252
                    % self.properties["Name"])
 
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    def need_approval(self, timeout, default):
 
217
 
            message = "Client %s needs approval within %f seconds"
 
 
256
            message = 'Client %s needs approval within %s seconds'
 
219
 
            message = "Client %s will get its secret in %f seconds"
 
220
 
        log.info(message, self.properties["Name"], timeout/1000)
 
 
258
            message = 'Client %s will get its secret in %s seconds'
 
 
260
                    % (self.properties["Name"], timeout/1000))
 
 
261
        self.using_timer(True)
 
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263
    def rejected(self, reason):
 
223
 
        log.info("Client %s was rejected; reason: %s",
 
224
 
                 self.properties["Name"], reason)
 
 
264
        self.logger('Client %s was rejected; reason: %s'
 
 
265
                    % (self.properties["Name"], reason))
 
226
267
    def selectable(self):
 
227
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        """Make this a "selectable" widget.
 
228
269
        This overrides the method from urwid.FlowWidget."""
 
231
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    def rows(self, maxcolrow, focus=False):
 
232
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        """How many rows this widget will occupy might depend on
 
233
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        whether we have focus or not.
 
234
275
        This overrides the method from urwid.FlowWidget"""
 
235
276
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
237
278
    def current_widget(self, focus=False):
 
238
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        if focus or self.opened:
 
239
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            return self._focus_widget
 
240
281
        return self._widget
 
242
283
    def update(self):
 
243
284
        "Called when what is visible on the screen should be updated."
 
244
285
        # How to add standout mode to a style
 
245
 
        with_standout = {"normal": "standout",
 
246
 
                         "bold": "bold-standout",
 
248
 
                         "underline-blink-standout",
 
249
 
                         "bold-underline-blink":
 
250
 
                         "bold-underline-blink-standout",
 
 
286
        with_standout = { "normal": "standout",
 
 
287
                          "bold": "bold-standout",
 
 
289
                              "underline-blink-standout",
 
 
290
                          "bold-underline-blink":
 
 
291
                              "bold-underline-blink-standout",
 
253
294
        # Rebuild focus and non-focus widgets using current properties
 
255
296
        # Base part of a client. Name!
 
256
 
        base = "{name}: ".format(name=self.properties["Name"])
 
 
298
                      % {"name": self.properties["Name"]})
 
257
299
        if not self.properties["Enabled"]:
 
258
300
            message = "DISABLED"
 
259
 
            self.using_timer(False)
 
260
301
        elif self.properties["ApprovalPending"]:
 
261
 
            timeout = datetime.timedelta(
 
262
 
                milliseconds=self.properties["ApprovalDelay"])
 
 
302
            timeout = datetime.timedelta(milliseconds
 
263
305
            last_approval_request = isoformat_to_datetime(
 
264
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                self.properties["LastApprovalRequest"])
 
265
307
            if last_approval_request is not None:
 
266
 
                timer = max(timeout - (datetime.datetime.utcnow()
 
267
 
                                       - last_approval_request),
 
268
 
                            datetime.timedelta())
 
 
308
                timer = timeout - (datetime.datetime.utcnow()
 
 
309
                                   - last_approval_request)
 
270
311
                timer = datetime.timedelta()
 
271
312
            if self.properties["ApprovedByDefault"]:
 
272
 
                message = "Approval in {}. (d)eny?"
 
 
313
                message = "Approval in %s. (d)eny?"
 
274
 
                message = "Denial in {}. (a)pprove?"
 
275
 
            message = message.format(str(timer).rsplit(".", 1)[0])
 
276
 
            self.using_timer(True)
 
277
 
        elif self.properties["LastCheckerStatus"] != 0:
 
278
 
            # When checker has failed, show timer until client expires
 
 
315
                message = "Denial in %s. (a)pprove?"
 
 
316
            message = message % unicode(timer).rsplit(".", 1)[0]
 
 
317
        elif self.last_checker_failed:
 
 
318
            # When checker has failed, print a timer until client expires
 
279
319
            expires = self.properties["Expires"]
 
280
320
            if expires == "":
 
281
321
                timer = datetime.timedelta(0)
 
283
 
                expires = (datetime.datetime.strptime
 
284
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
285
 
                timer = max(expires - datetime.datetime.utcnow(),
 
286
 
                            datetime.timedelta())
 
287
 
            message = ("A checker has failed! Time until client"
 
289
 
                       .format(str(timer).rsplit(".", 1)[0]))
 
290
 
            self.using_timer(True)
 
 
323
                expires = datetime.datetime.strptime(expires,
 
 
324
                                                     '%Y-%m-%dT%H:%M:%S.%f')
 
 
325
                timer = expires - datetime.datetime.utcnow()
 
 
326
            message = ('A checker has failed! Time until client'
 
 
328
                           % unicode(timer).rsplit(".", 1)[0])
 
292
330
            message = "enabled"
 
293
 
            self.using_timer(False)
 
294
 
        self._text = "{}{}".format(base, message)
 
 
331
        self._text = "%s%s" % (base, message)
 
296
333
        if not urwid.supports_unicode():
 
297
334
            self._text = self._text.encode("ascii", "replace")
 
298
335
        textlist = [("normal", self._text)]
 
 
308
345
        # Run update hook, if any
 
309
346
        if self.update_hook is not None:
 
310
347
            self.update_hook()
 
312
349
    def update_timer(self):
 
313
 
        """called by GLib. Will indefinitely loop until
 
314
 
        GLib.source_remove() on tag is called
 
 
350
        """called by gobject. Will indefinitely loop until
 
 
351
        gobject.source_remove() on tag is called"""
 
317
353
        return True             # Keep calling this
 
319
 
    def delete(self, **kwargs):
 
 
355
    def delete(self, *args, **kwargs):
 
320
356
        if self._update_timer_callback_tag is not None:
 
321
 
            GLib.source_remove(self._update_timer_callback_tag)
 
 
357
            gobject.source_remove(self._update_timer_callback_tag)
 
322
358
            self._update_timer_callback_tag = None
 
323
359
        for match in self.match_objects:
 
325
361
        self.match_objects = ()
 
326
362
        if self.delete_hook is not None:
 
327
363
            self.delete_hook(self)
 
328
 
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
364
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
330
366
    def render(self, maxcolrow, focus=False):
 
331
367
        """Render differently if we have focus.
 
332
368
        This overrides the method from urwid.FlowWidget"""
 
333
369
        return self.current_widget(focus).render(maxcolrow,
 
336
372
    def keypress(self, maxcolrow, key):
 
338
374
        This overrides the method from urwid.FlowWidget"""
 
340
 
            self.proxy.Set(client_interface, "Enabled",
 
341
 
                           dbus.Boolean(True), ignore_reply=True,
 
342
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
376
            self.proxy.Enable(dbus_interface = client_interface,
 
344
 
            self.proxy.Set(client_interface, "Enabled", False,
 
346
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
379
            self.proxy.Disable(dbus_interface = client_interface,
 
348
382
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
349
 
                               dbus_interface=client_interface,
 
 
383
                               dbus_interface = client_interface,
 
350
384
                               ignore_reply=True)
 
352
386
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
353
 
                               dbus_interface=client_interface,
 
 
387
                                  dbus_interface = client_interface,
 
354
388
                               ignore_reply=True)
 
355
389
        elif key == "R" or key == "_" or key == "ctrl k":
 
356
390
            self.server_proxy_object.RemoveClient(self.proxy
 
358
392
                                                  ignore_reply=True)
 
360
 
            self.proxy.Set(client_interface, "CheckerRunning",
 
361
 
                           dbus.Boolean(True), ignore_reply=True,
 
362
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
394
            self.proxy.StartChecker(dbus_interface = client_interface,
 
364
 
            self.proxy.Set(client_interface, "CheckerRunning",
 
365
 
                           dbus.Boolean(False), ignore_reply=True,
 
366
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
397
            self.proxy.StopChecker(dbus_interface = client_interface,
 
368
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
 
400
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
369
401
                                 ignore_reply=True)
 
371
403
#         elif key == "p" or key == "=":
 
 
380
 
    def properties_changed(self, interface, properties, invalidated):
 
381
 
        """Call self.update() if any properties changed.
 
 
412
    def property_changed(self, property=None, value=None,
 
 
414
        """Call self.update() if old value is not new value.
 
382
415
        This overrides the method from MandosClientPropertyCache"""
 
383
 
        old_values = {key: self.properties.get(key)
 
384
 
                      for key in properties.keys()}
 
385
 
        super(MandosClientWidget, self).properties_changed(
 
386
 
            interface, properties, invalidated)
 
387
 
        if any(old_values[key] != self.properties.get(key)
 
388
 
               for key in old_values):
 
 
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:
 
392
 
def glib_safely(func, retval=True):
 
393
 
    def safe_func(*args, **kwargs):
 
395
 
            return func(*args, **kwargs)
 
402
424
class ConstrainedListBox(urwid.ListBox):
 
403
425
    """Like a normal urwid.ListBox, but will consume all "up" or
 
404
426
    "down" key presses, thus not allowing any containing widgets to
 
405
427
    use them as an excuse to shift focus away from this widget.
 
407
 
    def keypress(self, *args, **kwargs):
 
408
 
        ret = (super(ConstrainedListBox, self)
 
409
 
               .keypress(*args, **kwargs))
 
 
429
    def keypress(self, maxcolrow, key):
 
 
430
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
410
431
        if ret in ("up", "down"):
 
 
436
class UserInterface(object):
 
416
437
    """This is the entire user interface - the whole screen
 
417
438
    with boxes, lists of client widgets, etc.
 
419
440
    def __init__(self, max_log_length=1000):
 
420
441
        DBusGMainLoop(set_as_default=True)
 
422
443
        self.screen = urwid.curses_display.Screen()
 
424
445
        self.screen.register_palette((
 
426
447
                 "default", "default", None),
 
428
 
                 "bold", "default", "bold"),
 
 
449
                 "default", "default", "bold"),
 
429
450
                ("underline-blink",
 
430
 
                 "underline,blink", "default", "underline,blink"),
 
 
451
                 "default", "default", "underline"),
 
432
 
                 "standout", "default", "standout"),
 
 
453
                 "default", "default", "standout"),
 
433
454
                ("bold-underline-blink",
 
434
 
                 "bold,underline,blink", "default",
 
435
 
                 "bold,underline,blink"),
 
 
455
                 "default", "default", ("bold", "underline")),
 
436
456
                ("bold-standout",
 
437
 
                 "bold,standout", "default", "bold,standout"),
 
 
457
                 "default", "default", ("bold", "standout")),
 
438
458
                ("underline-blink-standout",
 
439
 
                 "underline,blink,standout", "default",
 
440
 
                 "underline,blink,standout"),
 
 
459
                 "default", "default", ("underline", "standout")),
 
441
460
                ("bold-underline-blink-standout",
 
442
 
                 "bold,underline,blink,standout", "default",
 
443
 
                 "bold,underline,blink,standout"),
 
 
461
                 "default", "default", ("bold", "underline",
 
446
465
        if urwid.supports_unicode():
 
447
 
            self.divider = "─"  # \u2500
 
 
466
            self.divider = "─" # \u2500
 
 
467
            #self.divider = "━" # \u2501
 
449
 
            self.divider = "_"  # \u005f
 
 
469
            #self.divider = "-" # \u002d
 
 
470
            self.divider = "_" # \u005f
 
451
472
        self.screen.start()
 
453
474
        self.size = self.screen.get_cols_rows()
 
455
476
        self.clients = urwid.SimpleListWalker([])
 
456
477
        self.clients_dict = {}
 
458
479
        # We will add Text widgets to this list
 
459
 
        self.log = urwid.SimpleListWalker([])
 
460
481
        self.max_log_length = max_log_length
 
462
483
        # We keep a reference to the log widget so we can remove it
 
463
484
        # from the ListWalker without it getting destroyed
 
464
485
        self.logbox = ConstrainedListBox(self.log)
 
466
487
        # This keeps track of whether self.uilist currently has
 
467
488
        # self.logbox in it or not
 
468
489
        self.log_visible = True
 
469
490
        self.log_wrap = "any"
 
471
 
        self.loghandler = UILogHandler(self)
 
474
 
        self.add_log_line(("bold",
 
475
 
                           "Mandos Monitor version " + version))
 
476
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
478
 
        self.busname = domain + ".Mandos"
 
479
 
        self.main_loop = GLib.MainLoop()
 
481
 
    def client_not_found(self, key_id, address):
 
482
 
        log.info("Client with address %s and key ID %s could"
 
483
 
                 " not be found", address, key_id)
 
 
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,
 
485
548
    def rebuild(self):
 
486
549
        """This rebuilds the User Interface.
 
487
550
        Call this when the widget layout needs to change"""
 
489
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
 
552
        #self.uilist.append(urwid.ListBox(self.clients))
 
490
553
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
492
 
                                       # header=urwid.Divider(),
 
 
555
                                       #header=urwid.Divider(),
 
494
 
                                       footer=urwid.Divider(
 
495
 
                                           div_char=self.divider)))
 
 
558
                                       urwid.Divider(div_char=
 
496
560
        if self.log_visible:
 
497
561
            self.uilist.append(self.logbox)
 
498
563
        self.topwidget = urwid.Pile(self.uilist)
 
500
 
    def add_log_line(self, markup):
 
 
565
    def log_message(self, message):
 
 
566
        timestamp = datetime.datetime.now().isoformat()
 
 
567
        self.log_message_raw(timestamp + ": " + message)
 
 
569
    def log_message_raw(self, markup):
 
 
570
        """Add a log message to the log buffer."""
 
501
571
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
502
 
        if self.max_log_length:
 
503
 
            if len(self.log) > self.max_log_length:
 
504
 
                del self.log[0:(len(self.log) - self.max_log_length)]
 
505
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
 
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),
 
506
576
                              coming_from="above")
 
509
579
    def toggle_log_display(self):
 
510
580
        """Toggle visibility of the log buffer."""
 
511
581
        self.log_visible = not self.log_visible
 
513
 
        log.debug("Log visibility changed to: %s", self.log_visible)
 
 
583
        #self.log_message("Log visibility changed to: "
 
 
584
        #                 + unicode(self.log_visible))
 
515
586
    def change_log_display(self):
 
516
587
        """Change type of log display.
 
517
588
        Currently, this toggles wrapping of text lines."""
 
 
521
592
            self.log_wrap = "clip"
 
522
593
        for textwidget in self.log:
 
523
594
            textwidget.set_wrap_mode(self.log_wrap)
 
524
 
        log.debug("Wrap mode: %s", self.log_wrap)
 
526
 
    def find_and_remove_client(self, path, interfaces):
 
 
595
        #self.log_message("Wrap mode: " + self.log_wrap)
 
 
597
    def find_and_remove_client(self, path, name):
 
527
598
        """Find a client by its object path and remove it.
 
529
 
        This is connected to the InterfacesRemoved signal from the
 
 
600
        This is connected to the ClientRemoved signal from the
 
530
601
        Mandos server object."""
 
531
 
        if client_interface not in interfaces:
 
532
 
            # Not a Mandos client object; ignore
 
535
603
            client = self.clients_dict[path]
 
538
 
            log.warning("Unknown client %s removed", path)
 
 
606
            self.log_message("Unknown client %r (%r) removed", name,
 
542
 
    def add_new_client(self, path, ifs_and_props):
 
543
 
        """Find a client by its object path and remove it.
 
545
 
        This is connected to the InterfacesAdded signal from the
 
546
 
        Mandos server object.
 
548
 
        if client_interface not in ifs_and_props:
 
549
 
            # Not a Mandos client object; ignore
 
 
611
    def add_new_client(self, path):
 
551
612
        client_proxy_object = self.bus.get_object(self.busname, path)
 
552
 
        self.add_client(MandosClientWidget(
 
553
 
            server_proxy_object=self.mandos_serv,
 
554
 
            proxy_object=client_proxy_object,
 
555
 
            update_hook=self.refresh,
 
556
 
            delete_hook=self.remove_client,
 
557
 
            properties=dict(ifs_and_props[client_interface])),
 
 
613
        self.add_client(MandosClientWidget(server_proxy_object
 
 
616
                                           =client_proxy_object,
 
560
625
    def add_client(self, client, path=None):
 
561
626
        self.clients.append(client)
 
563
628
            path = client.proxy.object_path
 
564
629
        self.clients_dict[path] = client
 
565
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
 
630
        self.clients.sort(None, lambda c: c.properties["Name"])
 
568
633
    def remove_client(self, client, path=None):
 
569
634
        self.clients.remove(client)
 
571
636
            path = client.proxy.object_path
 
572
637
        del self.clients_dict[path]
 
 
638
        if not self.clients_dict:
 
 
639
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
 
640
            # is completely emptied, we need to recreate it.
 
 
641
            self.clients = urwid.SimpleListWalker([])
 
575
645
    def refresh(self):
 
576
646
        """Redraw the screen"""
 
577
647
        canvas = self.topwidget.render(self.size, focus=True)
 
578
648
        self.screen.draw_screen(self.size, canvas)
 
581
651
        """Start the main loop and exit when it's done."""
 
582
 
        log.addHandler(self.loghandler)
 
583
 
        self.orig_log_propagate = log.propagate
 
584
 
        log.propagate = False
 
585
 
        self.orig_log_level = log.level
 
587
 
        self.bus = dbus.SystemBus()
 
588
 
        mandos_dbus_objc = self.bus.get_object(
 
589
 
            self.busname, "/", follow_name_owner_changes=True)
 
590
 
        self.mandos_serv = dbus.Interface(
 
591
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
593
 
            mandos_clients = (self.mandos_serv
 
594
 
                              .GetAllClientsWithProperties())
 
595
 
            if not mandos_clients:
 
596
 
                log.warning("Note: Server has no clients.")
 
597
 
        except dbus.exceptions.DBusException:
 
598
 
            log.warning("Note: No Mandos server running.")
 
599
 
            mandos_clients = dbus.Dictionary()
 
602
 
         .connect_to_signal("InterfacesRemoved",
 
603
 
                            self.find_and_remove_client,
 
604
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
607
 
         .connect_to_signal("InterfacesAdded",
 
609
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
612
 
         .connect_to_signal("ClientNotFound",
 
613
 
                            self.client_not_found,
 
614
 
                            dbus_interface=server_interface,
 
616
 
        for path, client in mandos_clients.items():
 
617
 
            client_proxy_object = self.bus.get_object(self.busname,
 
619
 
            self.add_client(MandosClientWidget(
 
620
 
                server_proxy_object=self.mandos_serv,
 
621
 
                proxy_object=client_proxy_object,
 
623
 
                update_hook=self.refresh,
 
624
 
                delete_hook=self.remove_client),
 
628
 
        self._input_callback_tag = (
 
630
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
631
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
632
 
                glib_safely(self.process_input)))
 
 
653
        self._input_callback_tag = (gobject.io_add_watch
 
633
657
        self.main_loop.run()
 
634
658
        # Main loop has finished, we should close everything now
 
635
 
        GLib.source_remove(self._input_callback_tag)
 
636
 
        with warnings.catch_warnings():
 
637
 
            warnings.simplefilter("ignore", BytesWarning)
 
 
659
        gobject.source_remove(self._input_callback_tag)
 
641
663
        self.main_loop.quit()
 
642
 
        log.removeHandler(self.loghandler)
 
643
 
        log.propagate = self.orig_log_propagate
 
645
665
    def process_input(self, source, condition):
 
646
666
        keys = self.screen.get_input()
 
647
 
        translations = {"ctrl n": "down",       # Emacs
 
648
 
                        "ctrl p": "up",         # Emacs
 
649
 
                        "ctrl v": "page down",  # Emacs
 
650
 
                        "meta v": "page up",    # Emacs
 
651
 
                        " ": "page down",       # less
 
652
 
                        "f": "page down",       # less
 
653
 
                        "b": "page up",         # less
 
 
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
 
659
679
                key = translations[key]
 
660
680
            except KeyError:    # :-)
 
663
683
            if key == "q" or key == "Q":
 
666
686
            elif key == "window resize":
 
667
687
                self.size = self.screen.get_cols_rows()
 
669
 
            elif key == "ctrl l":
 
 
689
            elif key == "\f":  # Ctrl-L
 
672
691
            elif key == "l" or key == "D":
 
673
692
                self.toggle_log_display()
 
 
706
724
                    self.topwidget.set_focus(self.logbox)
 
709
 
                if log.level < logging.INFO:
 
710
 
                    log.setLevel(logging.INFO)
 
711
 
                    log.info("Verbose mode: Off")
 
713
 
                    log.setLevel(logging.NOTSET)
 
714
 
                    log.info("Verbose mode: On")
 
715
 
            # elif (key == "end" or key == "meta >" or key == "G"
 
717
 
            #     pass            # xxx end-of-buffer
 
718
 
            # elif (key == "home" or key == "meta <" or key == "g"
 
720
 
            #     pass            # xxx beginning-of-buffer
 
721
 
            # elif key == "ctrl e" or key == "$":
 
722
 
            #     pass            # xxx move-end-of-line
 
723
 
            # elif key == "ctrl a" or key == "^":
 
724
 
            #     pass            # xxx move-beginning-of-line
 
725
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
727
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
730
 
            #     pass            # scroll up log
 
732
 
            #     pass            # scroll down log
 
 
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
 
733
744
            elif self.topwidget.selectable():
 
734
745
                self.topwidget.keypress(self.size, key)
 
739
 
class UILogHandler(logging.Handler):
 
740
 
    def __init__(self, ui, *args, **kwargs):
 
742
 
        super(UILogHandler, self).__init__(*args, **kwargs)
 
744
 
            logging.Formatter("%(asctime)s: %(message)s"))
 
745
 
    def emit(self, record):
 
746
 
        msg = self.format(record)
 
747
 
        if record.levelno > logging.INFO:
 
749
 
        self.ui.add_log_line(msg)
 
752
749
ui = UserInterface()
 
755
752
except KeyboardInterrupt:
 
756
 
    with warnings.catch_warnings():
 
757
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
760
 
    with warnings.catch_warnings():
 
761
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
755
    ui.log_message(unicode(e))