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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 © 2009-2012 Teddy Hogeborn
 
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# Copyright © 2009-2012 Björn Påhlsson
 
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# This program is free software: you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
 
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# Copyright © 2009-2019 Teddy Hogeborn
 
 
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# Copyright © 2009-2019 Björn Påhlsson
 
 
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# This file is part of Mandos.
 
 
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# Mandos is free software: you can redistribute it and/or modify it
 
 
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# under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation, either version 3 of the License, or
 
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# (at your option) any later version.
 
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#     This program is distributed in the hope that it will be useful,
 
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#     but WITHOUT ANY WARRANTY; without even the implied warranty of
 
 
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#     Mandos is distributed in the hope that it will be useful, but
 
 
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#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
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#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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#     GNU General Public License for more details.
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
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# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
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# Contact the authors at <mandos@recompile.se>.
 
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from __future__ import (division, absolute_import, print_function,
 
 
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    from future_builtins import *
 
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import urwid.curses_display
 
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from dbus.mainloop.glib import DBusGMainLoop
 
 
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from gi.repository import GLib
 
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locale.setlocale(locale.LC_ALL, '')
 
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logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
 
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if sys.version_info.major == 2:
 
 
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log = logging.getLogger(os.path.basename(sys.argv[0]))
 
 
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logging.basicConfig(level="NOTSET", # Show all messages
 
 
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                    format="%(message)s") # Show basic log messages
 
 
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logging.captureWarnings(True)   # Show warnings via the logging system
 
 
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locale.setlocale(locale.LC_ALL, "")
 
 
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logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
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# Some useful constants
 
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domain = 'se.recompile'
 
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server_interface = domain + '.Mandos'
 
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client_interface = domain + '.Mandos.Client'
 
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# Always run in monochrome mode
 
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urwid.curses_display.curses.has_colors = lambda : False
 
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# Urwid doesn't support blinking, but we want it.  Since we have no
 
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# use for underline on its own, we make underline also always blink.
 
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urwid.curses_display.curses.A_UNDERLINE |= (
 
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    urwid.curses_display.curses.A_BLINK)
 
 
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domain = "se.recompile"
 
 
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server_interface = domain + ".Mandos"
 
 
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client_interface = domain + ".Mandos.Client"
 
 
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    dbus.OBJECT_MANAGER_IFACE
 
 
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except AttributeError:
 
 
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    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
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def isoformat_to_datetime(iso):
 
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    "Parse an ISO 8601 date string to a datetime.datetime()"
 
 
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                             int(second),           # Whole seconds
 
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                             int(fraction*1000000)) # Microseconds
 
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class MandosClientPropertyCache(object):
 
 
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                             int(second),            # Whole seconds
 
 
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                             int(fraction*1000000))  # Microseconds
 
 
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class MandosClientPropertyCache:
 
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    """This wraps a Mandos Client D-Bus proxy object, caches the
 
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    properties and calls a hook function when any of them are
 
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    def __init__(self, proxy_object=None, *args, **kwargs):
 
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        self.proxy = proxy_object # Mandos Client proxy object
 
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        self.properties = dict()
 
 
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    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
 
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        self.proxy = proxy_object  # Mandos Client proxy object
 
 
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        self.properties = dict() if properties is None else properties
 
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        self.property_changed_match = (
 
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            self.proxy.connect_to_signal("PropertyChanged",
 
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                                         self.property_changed,
 
 
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            self.proxy.connect_to_signal("PropertiesChanged",
 
 
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                                         self.properties_changed,
 
 
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                                         dbus.PROPERTIES_IFACE,
 
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                                         byte_arrays=True))
 
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        self.properties.update(
 
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            self.proxy.GetAll(client_interface,
 
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                              dbus_interface = dbus.PROPERTIES_IFACE))
 
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        #XXX This breaks good super behaviour
 
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#        super(MandosClientPropertyCache, self).__init__(
 
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    def property_changed(self, property=None, value=None):
 
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        """This is called whenever we get a PropertyChanged signal
 
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        It updates the changed property in the "properties" dict.
 
 
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        if properties is None:
 
 
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            self.properties.update(self.proxy.GetAll(
 
 
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                dbus_interface=dbus.PROPERTIES_IFACE))
 
 
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        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
 
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    def properties_changed(self, interface, properties, invalidated):
 
 
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        """This is called whenever we get a PropertiesChanged signal
 
 
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        It updates the changed properties in the "properties" dict.
 
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        # Update properties dict with new value
 
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        self.properties[property] = value
 
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    def delete(self, *args, **kwargs):
 
 
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        if interface == client_interface:
 
 
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            self.properties.update(properties)
 
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        self.property_changed_match.remove()
 
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        super(MandosClientPropertyCache, self).__init__(
 
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class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
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    """A Mandos Client which is visible on the screen.
 
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    def __init__(self, server_proxy_object=None, update_hook=None,
 
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                 delete_hook=None, logger=None, *args, **kwargs):
 
 
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                 delete_hook=None, **kwargs):
 
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        # Called on update
 
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        self.update_hook = update_hook
 
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        # Called on delete
 
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        self.delete_hook = delete_hook
 
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        # Mandos Server proxy object
 
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        self.server_proxy_object = server_proxy_object
 
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        self._update_timer_callback_tag = None
 
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        self._update_timer_callback_lock = 0
 
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        # 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 self.properties ["LastCheckerStatus"] != 0:
 
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            self.using_timer(True)
 
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        if self.need_approval:
 
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            self.using_timer(True)
 
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        self.match_objects = (
 
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            self.proxy.connect_to_signal("CheckerCompleted",
 
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                                         self.checker_completed,
 
 
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                                         client_interface,
 
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                                         byte_arrays=True))
 
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        #self.logger('Created client {0}'
 
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        #            .format(self.properties["Name"]))
 
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    def property_changed(self, property=None, value=None):
 
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        super(self, MandosClientWidget).property_changed(property,
 
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        if property == "ApprovalPending":
 
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            using_timer(bool(value))
 
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        if property == "LastCheckerStatus":
 
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            using_timer(value != 0)
 
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            #self.logger('Checker for client {0} (command "{1}") was '
 
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            #            ' successful'.format(self.properties["Name"],
 
 
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        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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            log.debug('Checker for client %s (command "%s")'
 
 
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                      " succeeded", self.properties["Name"], command)
 
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        if os.WIFEXITED(condition):
 
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            self.logger('Checker for client {0} (command "{1}")'
 
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                        ' failed with exit code {2}'
 
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                        .format(self.properties["Name"], command,
 
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                                os.WEXITSTATUS(condition)))
 
 
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            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):
 
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            self.logger('Checker for client {0} (command "{1}") was'
 
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                        ' killed by signal {2}'
 
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                        .format(self.properties["Name"], command,
 
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                                os.WTERMSIG(condition)))
 
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        elif os.WCOREDUMP(condition):
 
223
 
            self.logger('Checker for client {0} (command "{1}")'
 
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                        .format(self.properties["Name"], command))
 
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            self.logger('Checker for client {0} completed'
 
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                        .format(self.properties["Name"]))
 
 
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            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):
 
233
 
        """Server signals that a checker started. This could be useful
 
234
 
           to log in the future. """
 
235
 
        #self.logger('Client {0} started checker "{1}"'
 
236
 
        #            .format(self.properties["Name"],
 
 
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        """Server signals that a checker started."""
 
 
203
        log.debug('Client %s started checker "%s"',
 
 
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                  self.properties["Name"], command)
 
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    def got_secret(self):
 
241
 
        self.logger('Client {0} received its secret'
 
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                    .format(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):
 
246
 
            message = 'Client {0} needs approval within {1} seconds'
 
 
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            message = "Client %s needs approval within %f seconds"
 
248
 
            message = 'Client {0} will get its secret in {1} seconds'
 
249
 
        self.logger(message.format(self.properties["Name"],
 
251
 
        self.using_timer(True)
 
 
214
            message = "Client %s will get its secret in %f seconds"
 
 
215
        log.info(message, self.properties["Name"], timeout/1000)
 
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    def rejected(self, reason):
 
254
 
        self.logger('Client {0} was rejected; reason: {1}'
 
255
 
                    .format(self.properties["Name"], reason))
 
 
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        log.info("Client %s was rejected; reason: %s",
 
 
219
                 self.properties["Name"], reason)
 
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    def selectable(self):
 
258
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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"""
 
266
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        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
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    def current_widget(self, focus=False):
 
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        if focus or self.opened:
 
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            return self._focus_widget
 
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        return self._widget
 
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    def update(self):
 
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        "Called when what is visible on the screen should be updated."
 
275
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        # How to add standout mode to a style
 
276
 
        with_standout = { "normal": "standout",
 
277
 
                          "bold": "bold-standout",
 
279
 
                              "underline-blink-standout",
 
280
 
                          "bold-underline-blink":
 
281
 
                              "bold-underline-blink-standout",
 
 
240
        with_standout = {"normal": "standout",
 
 
241
                         "bold": "bold-standout",
 
 
243
                         "underline-blink-standout",
 
 
244
                         "bold-underline-blink":
 
 
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                         "bold-underline-blink-standout",
 
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        # Rebuild focus and non-focus widgets using current properties
 
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        # Base part of a client. Name!
 
287
 
        base = '{name}: '.format(name=self.properties["Name"])
 
 
251
        base = "{name}: ".format(name=self.properties["Name"])
 
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        if not self.properties["Enabled"]:
 
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            message = "DISABLED"
 
 
254
            self.using_timer(False)
 
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        elif self.properties["ApprovalPending"]:
 
291
 
            timeout = datetime.timedelta(milliseconds
 
 
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            timeout = datetime.timedelta(
 
 
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                milliseconds=self.properties["ApprovalDelay"])
 
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            last_approval_request = isoformat_to_datetime(
 
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                self.properties["LastApprovalRequest"])
 
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            if last_approval_request is not None:
 
297
 
                timer = timeout - (datetime.datetime.utcnow()
 
298
 
                                   - last_approval_request)
 
 
261
                timer = max(timeout - (datetime.datetime.utcnow()
 
 
262
                                       - last_approval_request),
 
 
263
                            datetime.timedelta())
 
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                timer = datetime.timedelta()
 
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            if self.properties["ApprovedByDefault"]:
 
302
 
                message = "Approval in {0}. (d)eny?"
 
 
267
                message = "Approval in {}. (d)eny?"
 
304
 
                message = "Denial in {0}. (a)pprove?"
 
305
 
            message = message.format(unicode(timer).rsplit(".", 1)[0])
 
 
269
                message = "Denial in {}. (a)pprove?"
 
 
270
            message = message.format(str(timer).rsplit(".", 1)[0])
 
 
271
            self.using_timer(True)
 
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        elif self.properties["LastCheckerStatus"] != 0:
 
307
 
            # When checker has failed, print a timer until client expires
 
 
273
            # When checker has failed, show timer until client expires
 
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            expires = self.properties["Expires"]
 
309
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            if expires == "":
 
310
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                timer = datetime.timedelta(0)
 
312
 
                expires = datetime.datetime.strptime(expires,
 
313
 
                                                     '%Y-%m-%dT%H:%M:%S.%f')
 
314
 
                timer = expires - datetime.datetime.utcnow()
 
315
 
            message = ('A checker has failed! Time until client'
 
316
 
                       ' gets disabled: {0}'
 
317
 
                       .format(unicode(timer).rsplit(".", 1)[0]))
 
 
278
                expires = (datetime.datetime.strptime
 
 
279
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
 
280
                timer = max(expires - datetime.datetime.utcnow(),
 
 
281
                            datetime.timedelta())
 
 
282
            message = ("A checker has failed! Time until client"
 
 
284
                       .format(str(timer).rsplit(".", 1)[0]))
 
 
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            self.using_timer(True)
 
319
287
            message = "enabled"
 
320
 
        self._text = "{0}{1}".format(base, message)
 
 
288
            self.using_timer(False)
 
 
289
        self._text = "{}{}".format(base, message)
 
322
291
        if not urwid.supports_unicode():
 
323
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            self._text = self._text.encode("ascii", "replace")
 
324
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        textlist = [("normal", self._text)]
 
 
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        # Run update hook, if any
 
335
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        if self.update_hook is not None:
 
336
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            self.update_hook()
 
338
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    def update_timer(self):
 
339
 
        """called by gobject. Will indefinitely loop until
 
340
 
        gobject.source_remove() on tag is called"""
 
 
308
        """called by GLib. Will indefinitely loop until
 
 
309
        GLib.source_remove() on tag is called
 
342
312
        return True             # Keep calling this
 
344
 
    def delete(self, *args, **kwargs):
 
 
314
    def delete(self, **kwargs):
 
345
315
        if self._update_timer_callback_tag is not None:
 
346
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
316
            GLib.source_remove(self._update_timer_callback_tag)
 
347
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            self._update_timer_callback_tag = None
 
348
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        for match in self.match_objects:
 
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        self.match_objects = ()
 
351
321
        if self.delete_hook is not None:
 
352
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            self.delete_hook(self)
 
353
 
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
 
323
        return super(MandosClientWidget, self).delete(**kwargs)
 
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    def render(self, maxcolrow, focus=False):
 
356
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        """Render differently if we have focus.
 
357
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        This overrides the method from urwid.FlowWidget"""
 
358
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        return self.current_widget(focus).render(maxcolrow,
 
361
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    def keypress(self, maxcolrow, key):
 
363
333
        This overrides the method from urwid.FlowWidget"""
 
365
 
            self.proxy.Enable(dbus_interface = client_interface,
 
 
335
            self.proxy.Set(client_interface, "Enabled",
 
 
336
                           dbus.Boolean(True), ignore_reply=True,
 
 
337
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
368
 
            self.proxy.Disable(dbus_interface = client_interface,
 
 
339
            self.proxy.Set(client_interface, "Enabled", False,
 
 
341
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
371
343
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
372
 
                               dbus_interface = client_interface,
 
 
344
                               dbus_interface=client_interface,
 
373
345
                               ignore_reply=True)
 
375
347
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
376
 
                                  dbus_interface = client_interface,
 
 
348
                               dbus_interface=client_interface,
 
377
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                               ignore_reply=True)
 
378
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        elif key == "R" or key == "_" or key == "ctrl k":
 
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            self.server_proxy_object.RemoveClient(self.proxy
 
381
353
                                                  ignore_reply=True)
 
383
 
            self.proxy.StartChecker(dbus_interface = client_interface,
 
 
355
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
356
                           dbus.Boolean(True), ignore_reply=True,
 
 
357
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
386
 
            self.proxy.StopChecker(dbus_interface = client_interface,
 
 
359
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
360
                           dbus.Boolean(False), ignore_reply=True,
 
 
361
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
389
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
 
363
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
390
364
                                 ignore_reply=True)
 
392
366
#         elif key == "p" or key == "=":
 
 
401
 
    def property_changed(self, property=None, value=None,
 
403
 
        """Call self.update() if old value is not new value.
 
 
375
    def properties_changed(self, interface, properties, invalidated):
 
 
376
        """Call self.update() if any properties changed.
 
404
377
        This overrides the method from MandosClientPropertyCache"""
 
405
 
        property_name = unicode(property)
 
406
 
        old_value = self.properties.get(property_name)
 
407
 
        super(MandosClientWidget, self).property_changed(
 
408
 
            property=property, value=value, *args, **kwargs)
 
409
 
        if self.properties.get(property_name) != old_value:
 
 
378
        old_values = {key: self.properties.get(key)
 
 
379
                      for key in properties.keys()}
 
 
380
        super(MandosClientWidget, self).properties_changed(
 
 
381
            interface, properties, invalidated)
 
 
382
        if any(old_values[key] != self.properties.get(key)
 
 
383
               for key in old_values):
 
 
387
def glib_safely(func, retval=True):
 
 
388
    def safe_func(*args, **kwargs):
 
 
390
            return func(*args, **kwargs)
 
413
397
class ConstrainedListBox(urwid.ListBox):
 
414
398
    """Like a normal urwid.ListBox, but will consume all "up" or
 
415
399
    "down" key presses, thus not allowing any containing widgets to
 
416
400
    use them as an excuse to shift focus away from this widget.
 
418
 
    def keypress(self, maxcolrow, key):
 
419
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
 
402
    def keypress(self, *args, **kwargs):
 
 
403
        ret = (super(ConstrainedListBox, self)
 
 
404
               .keypress(*args, **kwargs))
 
420
405
        if ret in ("up", "down"):
 
425
 
class UserInterface(object):
 
426
411
    """This is the entire user interface - the whole screen
 
427
412
    with boxes, lists of client widgets, etc.
 
429
414
    def __init__(self, max_log_length=1000):
 
430
415
        DBusGMainLoop(set_as_default=True)
 
432
417
        self.screen = urwid.curses_display.Screen()
 
434
419
        self.screen.register_palette((
 
436
421
                 "default", "default", None),
 
438
 
                 "default", "default", "bold"),
 
 
423
                 "bold", "default", "bold"),
 
439
424
                ("underline-blink",
 
440
 
                 "default", "default", "underline"),
 
 
425
                 "underline,blink", "default", "underline,blink"),
 
442
 
                 "default", "default", "standout"),
 
 
427
                 "standout", "default", "standout"),
 
443
428
                ("bold-underline-blink",
 
444
 
                 "default", "default", ("bold", "underline")),
 
 
429
                 "bold,underline,blink", "default",
 
 
430
                 "bold,underline,blink"),
 
445
431
                ("bold-standout",
 
446
 
                 "default", "default", ("bold", "standout")),
 
 
432
                 "bold,standout", "default", "bold,standout"),
 
447
433
                ("underline-blink-standout",
 
448
 
                 "default", "default", ("underline", "standout")),
 
 
434
                 "underline,blink,standout", "default",
 
 
435
                 "underline,blink,standout"),
 
449
436
                ("bold-underline-blink-standout",
 
450
 
                 "default", "default", ("bold", "underline",
 
 
437
                 "bold,underline,blink,standout", "default",
 
 
438
                 "bold,underline,blink,standout"),
 
454
441
        if urwid.supports_unicode():
 
455
 
            self.divider = "─" # \u2500
 
456
 
            #self.divider = "━" # \u2501
 
 
442
            self.divider = "─"  # \u2500
 
458
 
            #self.divider = "-" # \u002d
 
459
 
            self.divider = "_" # \u005f
 
 
444
            self.divider = "_"  # \u005f
 
461
446
        self.screen.start()
 
463
448
        self.size = self.screen.get_cols_rows()
 
465
450
        self.clients = urwid.SimpleListWalker([])
 
466
451
        self.clients_dict = {}
 
468
453
        # We will add Text widgets to this list
 
 
454
        self.log = urwid.SimpleListWalker([])
 
470
455
        self.max_log_length = max_log_length
 
472
457
        # We keep a reference to the log widget so we can remove it
 
473
458
        # from the ListWalker without it getting destroyed
 
474
459
        self.logbox = ConstrainedListBox(self.log)
 
476
461
        # This keeps track of whether self.uilist currently has
 
477
462
        # self.logbox in it or not
 
478
463
        self.log_visible = True
 
479
464
        self.log_wrap = "any"
 
 
466
        self.loghandler = UILogHandler(self)
 
482
 
        self.log_message_raw(("bold",
 
483
 
                              "Mandos Monitor version " + version))
 
484
 
        self.log_message_raw(("bold",
 
487
 
        self.busname = domain + '.Mandos'
 
488
 
        self.main_loop = gobject.MainLoop()
 
490
 
    def client_not_found(self, fingerprint, address):
 
491
 
        self.log_message("Client with address {0} and fingerprint"
 
492
 
                         " {1} could not be found"
 
493
 
                         .format(address, fingerprint))
 
 
469
        self.add_log_line(("bold",
 
 
470
                           "Mandos Monitor version " + version))
 
 
471
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
 
473
        self.busname = domain + ".Mandos"
 
 
474
        self.main_loop = GLib.MainLoop()
 
 
476
    def client_not_found(self, key_id, address):
 
 
477
        log.info("Client with address %s and key ID %s could"
 
 
478
                 " not be found", address, key_id)
 
495
480
    def rebuild(self):
 
496
481
        """This rebuilds the User Interface.
 
497
482
        Call this when the widget layout needs to change"""
 
499
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
 
484
        # self.uilist.append(urwid.ListBox(self.clients))
 
500
485
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
502
 
                                       #header=urwid.Divider(),
 
 
487
                                       # header=urwid.Divider(),
 
505
 
                                       urwid.Divider(div_char=
 
 
489
                                       footer=urwid.Divider(
 
 
490
                                           div_char=self.divider)))
 
507
491
        if self.log_visible:
 
508
492
            self.uilist.append(self.logbox)
 
509
493
        self.topwidget = urwid.Pile(self.uilist)
 
511
 
    def log_message(self, message):
 
512
 
        timestamp = datetime.datetime.now().isoformat()
 
513
 
        self.log_message_raw(timestamp + ": " + message)
 
515
 
    def log_message_raw(self, markup):
 
516
 
        """Add a log message to the log buffer."""
 
 
495
    def add_log_line(self, markup):
 
517
496
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
518
 
        if (self.max_log_length
 
519
 
            and len(self.log) > self.max_log_length):
 
520
 
            del self.log[0:len(self.log)-self.max_log_length-1]
 
521
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
 
497
        if self.max_log_length:
 
 
498
            if len(self.log) > self.max_log_length:
 
 
499
                del self.log[0:(len(self.log) - self.max_log_length)]
 
 
500
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
522
501
                              coming_from="above")
 
525
504
    def toggle_log_display(self):
 
526
505
        """Toggle visibility of the log buffer."""
 
527
506
        self.log_visible = not self.log_visible
 
529
 
        #self.log_message("Log visibility changed to: "
 
530
 
        #                 + unicode(self.log_visible))
 
 
508
        log.debug("Log visibility changed to: %s", self.log_visible)
 
532
510
    def change_log_display(self):
 
533
511
        """Change type of log display.
 
534
512
        Currently, this toggles wrapping of text lines."""
 
 
538
516
            self.log_wrap = "clip"
 
539
517
        for textwidget in self.log:
 
540
518
            textwidget.set_wrap_mode(self.log_wrap)
 
541
 
        #self.log_message("Wrap mode: " + self.log_wrap)
 
543
 
    def find_and_remove_client(self, path, name):
 
 
519
        log.debug("Wrap mode: %s", self.log_wrap)
 
 
521
    def find_and_remove_client(self, path, interfaces):
 
544
522
        """Find a client by its object path and remove it.
 
546
 
        This is connected to the ClientRemoved signal from the
 
 
524
        This is connected to the InterfacesRemoved signal from the
 
547
525
        Mandos server object."""
 
 
526
        if client_interface not in interfaces:
 
 
527
            # Not a Mandos client object; ignore
 
549
530
            client = self.clients_dict[path]
 
552
 
            self.log_message("Unknown client {0!r} ({1!r}) removed"
 
 
533
            log.warning("Unknown client %s removed", path)
 
557
 
    def add_new_client(self, path):
 
 
537
    def add_new_client(self, path, ifs_and_props):
 
 
538
        """Find a client by its object path and remove it.
 
 
540
        This is connected to the InterfacesAdded signal from the
 
 
541
        Mandos server object.
 
 
543
        if client_interface not in ifs_and_props:
 
 
544
            # Not a Mandos client object; ignore
 
558
546
        client_proxy_object = self.bus.get_object(self.busname, path)
 
559
 
        self.add_client(MandosClientWidget(server_proxy_object
 
562
 
                                           =client_proxy_object,
 
 
547
        self.add_client(MandosClientWidget(
 
 
548
            server_proxy_object=self.mandos_serv,
 
 
549
            proxy_object=client_proxy_object,
 
 
550
            update_hook=self.refresh,
 
 
551
            delete_hook=self.remove_client,
 
 
552
            properties=dict(ifs_and_props[client_interface])),
 
571
555
    def add_client(self, client, path=None):
 
572
556
        self.clients.append(client)
 
574
558
            path = client.proxy.object_path
 
575
559
        self.clients_dict[path] = client
 
576
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
 
560
        self.clients.sort(key=lambda c: c.properties["Name"])
 
579
563
    def remove_client(self, client, path=None):
 
580
564
        self.clients.remove(client)
 
582
566
            path = client.proxy.object_path
 
583
567
        del self.clients_dict[path]
 
584
 
        if not self.clients_dict:
 
585
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
586
 
            # is completely emptied, we need to recreate it.
 
587
 
            self.clients = urwid.SimpleListWalker([])
 
591
570
    def refresh(self):
 
592
571
        """Redraw the screen"""
 
593
572
        canvas = self.topwidget.render(self.size, focus=True)
 
594
573
        self.screen.draw_screen(self.size, canvas)
 
597
576
        """Start the main loop and exit when it's done."""
 
 
577
        log.addHandler(self.loghandler)
 
 
578
        self.orig_log_propagate = log.propagate
 
 
579
        log.propagate = False
 
 
580
        self.orig_log_level = log.level
 
598
582
        self.bus = dbus.SystemBus()
 
599
583
        mandos_dbus_objc = self.bus.get_object(
 
600
584
            self.busname, "/", follow_name_owner_changes=True)
 
601
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
 
585
        self.mandos_serv = dbus.Interface(
 
 
586
            mandos_dbus_objc, dbus_interface=server_interface)
 
605
588
            mandos_clients = (self.mandos_serv
 
606
589
                              .GetAllClientsWithProperties())
 
 
590
            if not mandos_clients:
 
 
591
                log.warning("Note: Server has no clients.")
 
607
592
        except dbus.exceptions.DBusException:
 
 
593
            log.warning("Note: No Mandos server running.")
 
608
594
            mandos_clients = dbus.Dictionary()
 
610
596
        (self.mandos_serv
 
611
 
         .connect_to_signal("ClientRemoved",
 
 
597
         .connect_to_signal("InterfacesRemoved",
 
612
598
                            self.find_and_remove_client,
 
613
 
                            dbus_interface=server_interface,
 
 
599
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
614
600
                            byte_arrays=True))
 
615
601
        (self.mandos_serv
 
616
 
         .connect_to_signal("ClientAdded",
 
 
602
         .connect_to_signal("InterfacesAdded",
 
617
603
                            self.add_new_client,
 
618
 
                            dbus_interface=server_interface,
 
 
604
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
619
605
                            byte_arrays=True))
 
620
606
        (self.mandos_serv
 
621
607
         .connect_to_signal("ClientNotFound",
 
622
608
                            self.client_not_found,
 
623
609
                            dbus_interface=server_interface,
 
624
610
                            byte_arrays=True))
 
625
 
        for path, client in mandos_clients.iteritems():
 
 
611
        for path, client in mandos_clients.items():
 
626
612
            client_proxy_object = self.bus.get_object(self.busname,
 
628
 
            self.add_client(MandosClientWidget(server_proxy_object
 
631
 
                                               =client_proxy_object,
 
 
614
            self.add_client(MandosClientWidget(
 
 
615
                server_proxy_object=self.mandos_serv,
 
 
616
                proxy_object=client_proxy_object,
 
 
618
                update_hook=self.refresh,
 
 
619
                delete_hook=self.remove_client),
 
642
 
        self._input_callback_tag = (gobject.io_add_watch
 
 
623
        self._input_callback_tag = (
 
 
625
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
 
626
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
 
627
                glib_safely(self.process_input)))
 
646
628
        self.main_loop.run()
 
647
629
        # Main loop has finished, we should close everything now
 
648
 
        gobject.source_remove(self._input_callback_tag)
 
 
630
        GLib.source_remove(self._input_callback_tag)
 
 
631
        with warnings.catch_warnings():
 
 
632
            warnings.simplefilter("ignore", BytesWarning)
 
652
636
        self.main_loop.quit()
 
 
637
        log.removeHandler(self.loghandler)
 
 
638
        log.propagate = self.orig_log_propagate
 
654
640
    def process_input(self, source, condition):
 
655
641
        keys = self.screen.get_input()
 
656
 
        translations = { "ctrl n": "down",      # Emacs
 
657
 
                         "ctrl p": "up",        # Emacs
 
658
 
                         "ctrl v": "page down", # Emacs
 
659
 
                         "meta v": "page up",   # Emacs
 
660
 
                         " ": "page down",      # less
 
661
 
                         "f": "page down",      # less
 
662
 
                         "b": "page up",        # less
 
 
642
        translations = {"ctrl n": "down",       # Emacs
 
 
643
                        "ctrl p": "up",         # Emacs
 
 
644
                        "ctrl v": "page down",  # Emacs
 
 
645
                        "meta v": "page up",    # Emacs
 
 
646
                        " ": "page down",       # less
 
 
647
                        "f": "page down",       # less
 
 
648
                        "b": "page up",         # less
 
668
654
                key = translations[key]
 
669
655
            except KeyError:    # :-)
 
672
658
            if key == "q" or key == "Q":
 
675
661
            elif key == "window resize":
 
676
662
                self.size = self.screen.get_cols_rows()
 
678
 
            elif key == "\f":  # Ctrl-L
 
 
664
            elif key == "ctrl l":
 
680
667
            elif key == "l" or key == "D":
 
681
668
                self.toggle_log_display()
 
 
713
701
                    self.topwidget.set_focus(self.logbox)
 
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
 
 
704
                if log.level < logging.INFO:
 
 
705
                    log.setLevel(logging.INFO)
 
 
706
                    log.info("Verbose mode: Off")
 
 
708
                    log.setLevel(logging.NOTSET)
 
 
709
                    log.info("Verbose mode: On")
 
 
710
            # elif (key == "end" or key == "meta >" or key == "G"
 
 
712
            #     pass            # xxx end-of-buffer
 
 
713
            # elif (key == "home" or key == "meta <" or key == "g"
 
 
715
            #     pass            # xxx beginning-of-buffer
 
 
716
            # elif key == "ctrl e" or key == "$":
 
 
717
            #     pass            # xxx move-end-of-line
 
 
718
            # elif key == "ctrl a" or key == "^":
 
 
719
            #     pass            # xxx move-beginning-of-line
 
 
720
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
 
722
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
 
725
            #     pass            # scroll up log
 
 
727
            #     pass            # scroll down log
 
733
728
            elif self.topwidget.selectable():
 
734
729
                self.topwidget.keypress(self.size, key)
 
 
734
class UILogHandler(logging.Handler):
 
 
735
    def __init__(self, ui, *args, **kwargs):
 
 
737
        super(UILogHandler, self).__init__(*args, **kwargs)
 
 
739
            logging.Formatter("%(asctime)s: %(message)s"))
 
 
740
    def emit(self, record):
 
 
741
        msg = self.format(record)
 
 
742
        if record.levelno > logging.INFO:
 
 
744
        self.ui.add_log_line(msg)
 
738
747
ui = UserInterface()
 
741
750
except KeyboardInterrupt:
 
744
 
    ui.log_message(unicode(e))
 
 
751
    with warnings.catch_warnings():
 
 
752
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
755
    with warnings.catch_warnings():
 
 
756
        warnings.filterwarnings("ignore", "", BytesWarning)