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#!/usr/bin/python3 -bbI
 
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# -*- mode: python; coding: utf-8 -*-
 
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# Mandos Monitor - Control and monitor the Mandos server
 
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# Copyright © 2009-2011 Teddy Hogeborn
 
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# Copyright © 2009-2011 Björn Påhlsson
 
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# This program is free software: you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
 
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# Copyright © 2009-2019 Teddy Hogeborn
 
 
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# Copyright © 2009-2019 Björn Påhlsson
 
 
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# This file is part of Mandos.
 
 
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# Mandos is free software: you can redistribute it and/or modify it
 
 
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# under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation, either version 3 of the License, or
 
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# (at your option) any later version.
 
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#     This program is distributed in the hope that it will be useful,
 
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#     but WITHOUT ANY WARRANTY; without even the implied warranty of
 
 
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#     Mandos is distributed in the hope that it will be useful, but
 
 
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#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
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#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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#     GNU General Public License for more details.
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
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# Contact the authors at <mandos@fukt.bsnet.se>.
 
 
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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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# 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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# Some useful constants
 
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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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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
 
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
 
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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
 
133
 
        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("")
 
140
 
        super(MandosClientWidget, self).__init__(
 
141
 
            update_hook=update_hook, delete_hook=delete_hook,
 
 
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        super(MandosClientWidget, self).__init__(**kwargs)
 
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        self.opened = False
 
146
 
        last_checked_ok = isoformat_to_datetime(self.properties
 
148
 
        if last_checked_ok is None:
 
149
 
            self.last_checker_failed = True
 
151
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
158
 
        if self.last_checker_failed:
 
159
 
            self.using_timer(True)
 
161
 
        if self.need_approval:
 
162
 
            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))
 
185
 
        #self.logger('Created client %s' % (self.properties["Name"]))
 
187
 
    def property_changed(self, property=None, value=None):
 
188
 
        super(self, MandosClientWidget).property_changed(property,
 
190
 
        if property == "ApprovalPending":
 
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            using_timer(bool(value))
 
 
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        log.debug("Created client %s", self.properties["Name"])
 
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    def using_timer(self, flag):
 
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        """Call this method with True or False when timer should be
 
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        activated or deactivated.
 
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        old = self._update_timer_callback_lock
 
199
 
            self._update_timer_callback_lock += 1
 
201
 
            self._update_timer_callback_lock -= 1
 
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        if old == 0 and self._update_timer_callback_lock:
 
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            self._update_timer_callback_tag = (gobject.timeout_add
 
206
 
        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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        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 = (
 
 
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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:
 
212
 
            if self.last_checker_failed:
 
213
 
                self.last_checker_failed = False
 
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                self.using_timer(False)
 
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            #self.logger('Checker for client %s (command "%s")'
 
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            #            % (self.properties["Name"], command))
 
 
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            log.debug('Checker for client %s (command "%s")'
 
 
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                      " succeeded", self.properties["Name"], command)
 
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        if not self.last_checker_failed:
 
222
 
            self.last_checker_failed = True
 
223
 
            self.using_timer(True)
 
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        if os.WIFEXITED(condition):
 
225
 
            self.logger('Checker for client %s (command "%s")'
 
226
 
                        ' failed with exit code %s'
 
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                        % (self.properties["Name"], command,
 
228
 
                           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):
 
230
 
            self.logger('Checker for client %s (command "%s")'
 
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                        ' was killed by signal %s'
 
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                        % (self.properties["Name"], command,
 
233
 
                           os.WTERMSIG(condition)))
 
234
 
        elif os.WCOREDUMP(condition):
 
235
 
            self.logger('Checker for client %s (command "%s")'
 
237
 
                        % (self.properties["Name"], command))
 
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            self.logger('Checker for client %s completed'
 
 
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            log.info('Checker for client %s (command "%s") was'
 
 
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                     " killed by signal %d", self.properties["Name"],
 
 
203
                     command, os.WTERMSIG(condition))
 
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    def checker_started(self, command):
 
244
 
        #self.logger('Client %s started checker "%s"'
 
245
 
        #            % (self.properties["Name"], unicode(command)))
 
 
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        """Server signals that a checker started."""
 
 
208
        log.debug('Client %s started checker "%s"',
 
 
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                  self.properties["Name"], command)
 
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    def got_secret(self):
 
249
 
        self.last_checker_failed = False
 
250
 
        self.logger('Client %s received its secret'
 
251
 
                    % 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):
 
255
 
            message = 'Client %s needs approval within %s seconds'
 
 
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            message = "Client %s needs approval within %f seconds"
 
257
 
            message = 'Client %s will get its secret in %s seconds'
 
259
 
                    % (self.properties["Name"], timeout/1000))
 
260
 
        self.using_timer(True)
 
 
219
            message = "Client %s will get its secret in %f seconds"
 
 
220
        log.info(message, self.properties["Name"], timeout/1000)
 
262
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    def rejected(self, reason):
 
263
 
        self.logger('Client %s was rejected; reason: %s'
 
264
 
                    % (self.properties["Name"], reason))
 
 
223
        log.info("Client %s was rejected; reason: %s",
 
 
224
                 self.properties["Name"], reason)
 
266
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    def selectable(self):
 
267
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        """Make this a "selectable" widget.
 
268
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        This overrides the method from urwid.FlowWidget."""
 
271
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    def rows(self, maxcolrow, focus=False):
 
272
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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"""
 
275
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        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
277
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    def current_widget(self, focus=False):
 
278
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        if focus or self.opened:
 
279
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            return self._focus_widget
 
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        return self._widget
 
282
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    def update(self):
 
283
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        "Called when what is visible on the screen should be updated."
 
284
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        # How to add standout mode to a style
 
285
 
        with_standout = { "normal": "standout",
 
286
 
                          "bold": "bold-standout",
 
288
 
                              "underline-blink-standout",
 
289
 
                          "bold-underline-blink":
 
290
 
                              "bold-underline-blink-standout",
 
 
245
        with_standout = {"normal": "standout",
 
 
246
                         "bold": "bold-standout",
 
 
248
                         "underline-blink-standout",
 
 
249
                         "bold-underline-blink":
 
 
250
                         "bold-underline-blink-standout",
 
293
253
        # Rebuild focus and non-focus widgets using current properties
 
295
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        # Base part of a client. Name!
 
297
 
                      % {"name": self.properties["Name"]})
 
 
256
        base = "{name}: ".format(name=self.properties["Name"])
 
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        if not self.properties["Enabled"]:
 
299
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            message = "DISABLED"
 
 
259
            self.using_timer(False)
 
300
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        elif self.properties["ApprovalPending"]:
 
301
 
            timeout = datetime.timedelta(milliseconds
 
 
261
            timeout = datetime.timedelta(
 
 
262
                milliseconds=self.properties["ApprovalDelay"])
 
304
263
            last_approval_request = isoformat_to_datetime(
 
305
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                self.properties["LastApprovalRequest"])
 
306
265
            if last_approval_request is not None:
 
307
 
                timer = timeout - (datetime.datetime.utcnow()
 
308
 
                                   - last_approval_request)
 
 
266
                timer = max(timeout - (datetime.datetime.utcnow()
 
 
267
                                       - last_approval_request),
 
 
268
                            datetime.timedelta())
 
310
270
                timer = datetime.timedelta()
 
311
271
            if self.properties["ApprovedByDefault"]:
 
312
 
                message = "Approval in %s. (d)eny?"
 
314
 
                message = "Denial in %s. (a)pprove?"
 
315
 
            message = message % unicode(timer).rsplit(".", 1)[0]
 
316
 
        elif self.last_checker_failed:
 
317
 
            timeout = datetime.timedelta(milliseconds
 
320
 
            last_ok = isoformat_to_datetime(
 
321
 
                max((self.properties["LastCheckedOK"]
 
322
 
                     or self.properties["Created"]),
 
323
 
                    self.properties["LastEnabled"]))
 
324
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
325
 
            message = ('A checker has failed! Time until client'
 
327
 
                           % unicode(timer).rsplit(".", 1)[0])
 
 
272
                message = "Approval in {}. (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
 
 
279
            expires = self.properties["Expires"]
 
 
281
                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)
 
329
292
            message = "enabled"
 
330
 
        self._text = "%s%s" % (base, message)
 
 
293
            self.using_timer(False)
 
 
294
        self._text = "{}{}".format(base, message)
 
332
296
        if not urwid.supports_unicode():
 
333
297
            self._text = self._text.encode("ascii", "replace")
 
334
298
        textlist = [("normal", self._text)]
 
 
344
308
        # Run update hook, if any
 
345
309
        if self.update_hook is not None:
 
346
310
            self.update_hook()
 
348
312
    def update_timer(self):
 
 
313
        """called by GLib. Will indefinitely loop until
 
 
314
        GLib.source_remove() on tag is called
 
351
317
        return True             # Keep calling this
 
353
 
    def delete(self, *args, **kwargs):
 
 
319
    def delete(self, **kwargs):
 
354
320
        if self._update_timer_callback_tag is not None:
 
355
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
321
            GLib.source_remove(self._update_timer_callback_tag)
 
356
322
            self._update_timer_callback_tag = None
 
357
323
        for match in self.match_objects:
 
359
325
        self.match_objects = ()
 
360
326
        if self.delete_hook is not None:
 
361
327
            self.delete_hook(self)
 
362
 
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
 
328
        return super(MandosClientWidget, self).delete(**kwargs)
 
364
330
    def render(self, maxcolrow, focus=False):
 
365
331
        """Render differently if we have focus.
 
366
332
        This overrides the method from urwid.FlowWidget"""
 
367
333
        return self.current_widget(focus).render(maxcolrow,
 
370
336
    def keypress(self, maxcolrow, key):
 
372
338
        This overrides the method from urwid.FlowWidget"""
 
374
 
            self.proxy.Enable(dbus_interface = client_interface,
 
 
340
            self.proxy.Set(client_interface, "Enabled",
 
 
341
                           dbus.Boolean(True), ignore_reply=True,
 
 
342
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
377
 
            self.proxy.Disable(dbus_interface = client_interface,
 
 
344
            self.proxy.Set(client_interface, "Enabled", False,
 
 
346
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
380
348
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
381
 
                               dbus_interface = client_interface,
 
 
349
                               dbus_interface=client_interface,
 
382
350
                               ignore_reply=True)
 
384
352
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
385
 
                                  dbus_interface = client_interface,
 
 
353
                               dbus_interface=client_interface,
 
386
354
                               ignore_reply=True)
 
387
355
        elif key == "R" or key == "_" or key == "ctrl k":
 
388
356
            self.server_proxy_object.RemoveClient(self.proxy
 
390
358
                                                  ignore_reply=True)
 
392
 
            self.proxy.StartChecker(dbus_interface = client_interface,
 
 
360
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
361
                           dbus.Boolean(True), ignore_reply=True,
 
 
362
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
395
 
            self.proxy.StopChecker(dbus_interface = client_interface,
 
 
364
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
365
                           dbus.Boolean(False), ignore_reply=True,
 
 
366
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
398
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
 
368
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
399
369
                                 ignore_reply=True)
 
401
371
#         elif key == "p" or key == "=":
 
 
410
 
    def property_changed(self, property=None, value=None,
 
412
 
        """Call self.update() if old value is not new value.
 
 
380
    def properties_changed(self, interface, properties, invalidated):
 
 
381
        """Call self.update() if any properties changed.
 
413
382
        This overrides the method from MandosClientPropertyCache"""
 
414
 
        property_name = unicode(property)
 
415
 
        old_value = self.properties.get(property_name)
 
416
 
        super(MandosClientWidget, self).property_changed(
 
417
 
            property=property, value=value, *args, **kwargs)
 
418
 
        if self.properties.get(property_name) != old_value:
 
 
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):
 
 
392
def glib_safely(func, retval=True):
 
 
393
    def safe_func(*args, **kwargs):
 
 
395
            return func(*args, **kwargs)
 
422
402
class ConstrainedListBox(urwid.ListBox):
 
423
403
    """Like a normal urwid.ListBox, but will consume all "up" or
 
424
404
    "down" key presses, thus not allowing any containing widgets to
 
425
405
    use them as an excuse to shift focus away from this widget.
 
427
 
    def keypress(self, maxcolrow, key):
 
428
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
 
407
    def keypress(self, *args, **kwargs):
 
 
408
        ret = (super(ConstrainedListBox, self)
 
 
409
               .keypress(*args, **kwargs))
 
429
410
        if ret in ("up", "down"):
 
434
 
class UserInterface(object):
 
435
416
    """This is the entire user interface - the whole screen
 
436
417
    with boxes, lists of client widgets, etc.
 
438
419
    def __init__(self, max_log_length=1000):
 
439
420
        DBusGMainLoop(set_as_default=True)
 
441
422
        self.screen = urwid.curses_display.Screen()
 
443
424
        self.screen.register_palette((
 
445
426
                 "default", "default", None),
 
447
 
                 "default", "default", "bold"),
 
 
428
                 "bold", "default", "bold"),
 
448
429
                ("underline-blink",
 
449
 
                 "default", "default", "underline"),
 
 
430
                 "underline,blink", "default", "underline,blink"),
 
451
 
                 "default", "default", "standout"),
 
 
432
                 "standout", "default", "standout"),
 
452
433
                ("bold-underline-blink",
 
453
 
                 "default", "default", ("bold", "underline")),
 
 
434
                 "bold,underline,blink", "default",
 
 
435
                 "bold,underline,blink"),
 
454
436
                ("bold-standout",
 
455
 
                 "default", "default", ("bold", "standout")),
 
 
437
                 "bold,standout", "default", "bold,standout"),
 
456
438
                ("underline-blink-standout",
 
457
 
                 "default", "default", ("underline", "standout")),
 
 
439
                 "underline,blink,standout", "default",
 
 
440
                 "underline,blink,standout"),
 
458
441
                ("bold-underline-blink-standout",
 
459
 
                 "default", "default", ("bold", "underline",
 
 
442
                 "bold,underline,blink,standout", "default",
 
 
443
                 "bold,underline,blink,standout"),
 
463
446
        if urwid.supports_unicode():
 
464
 
            self.divider = "─" # \u2500
 
465
 
            #self.divider = "━" # \u2501
 
 
447
            self.divider = "─"  # \u2500
 
467
 
            #self.divider = "-" # \u002d
 
468
 
            self.divider = "_" # \u005f
 
 
449
            self.divider = "_"  # \u005f
 
470
451
        self.screen.start()
 
472
453
        self.size = self.screen.get_cols_rows()
 
474
455
        self.clients = urwid.SimpleListWalker([])
 
475
456
        self.clients_dict = {}
 
477
458
        # We will add Text widgets to this list
 
 
459
        self.log = urwid.SimpleListWalker([])
 
479
460
        self.max_log_length = max_log_length
 
481
462
        # We keep a reference to the log widget so we can remove it
 
482
463
        # from the ListWalker without it getting destroyed
 
483
464
        self.logbox = ConstrainedListBox(self.log)
 
485
466
        # This keeps track of whether self.uilist currently has
 
486
467
        # self.logbox in it or not
 
487
468
        self.log_visible = True
 
488
469
        self.log_wrap = "any"
 
 
471
        self.loghandler = UILogHandler(self)
 
491
 
        self.log_message_raw(("bold",
 
492
 
                              "Mandos Monitor version " + version))
 
493
 
        self.log_message_raw(("bold",
 
496
 
        self.busname = domain + '.Mandos'
 
497
 
        self.main_loop = gobject.MainLoop()
 
498
 
        self.bus = dbus.SystemBus()
 
499
 
        mandos_dbus_objc = self.bus.get_object(
 
500
 
            self.busname, "/", follow_name_owner_changes=True)
 
501
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
505
 
            mandos_clients = (self.mandos_serv
 
506
 
                              .GetAllClientsWithProperties())
 
507
 
        except dbus.exceptions.DBusException:
 
508
 
            mandos_clients = dbus.Dictionary()
 
511
 
         .connect_to_signal("ClientRemoved",
 
512
 
                            self.find_and_remove_client,
 
513
 
                            dbus_interface=server_interface,
 
516
 
         .connect_to_signal("ClientAdded",
 
518
 
                            dbus_interface=server_interface,
 
521
 
         .connect_to_signal("ClientNotFound",
 
522
 
                            self.client_not_found,
 
523
 
                            dbus_interface=server_interface,
 
525
 
        for path, client in mandos_clients.iteritems():
 
526
 
            client_proxy_object = self.bus.get_object(self.busname,
 
528
 
            self.add_client(MandosClientWidget(server_proxy_object
 
531
 
                                               =client_proxy_object,
 
541
 
    def client_not_found(self, fingerprint, address):
 
542
 
        self.log_message(("Client with address %s and fingerprint %s"
 
543
 
                          " could not be found" % (address,
 
 
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)
 
546
485
    def rebuild(self):
 
547
486
        """This rebuilds the User Interface.
 
548
487
        Call this when the widget layout needs to change"""
 
550
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
 
489
        # self.uilist.append(urwid.ListBox(self.clients))
 
551
490
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
553
 
                                       #header=urwid.Divider(),
 
 
492
                                       # header=urwid.Divider(),
 
556
 
                                       urwid.Divider(div_char=
 
 
494
                                       footer=urwid.Divider(
 
 
495
                                           div_char=self.divider)))
 
558
496
        if self.log_visible:
 
559
497
            self.uilist.append(self.logbox)
 
561
498
        self.topwidget = urwid.Pile(self.uilist)
 
563
 
    def log_message(self, message):
 
564
 
        timestamp = datetime.datetime.now().isoformat()
 
565
 
        self.log_message_raw(timestamp + ": " + message)
 
567
 
    def log_message_raw(self, markup):
 
568
 
        """Add a log message to the log buffer."""
 
 
500
    def add_log_line(self, markup):
 
569
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
570
 
        if (self.max_log_length
 
571
 
            and len(self.log) > self.max_log_length):
 
572
 
            del self.log[0:len(self.log)-self.max_log_length-1]
 
573
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
 
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,
 
574
506
                              coming_from="above")
 
577
509
    def toggle_log_display(self):
 
578
510
        """Toggle visibility of the log buffer."""
 
579
511
        self.log_visible = not self.log_visible
 
581
 
        #self.log_message("Log visibility changed to: "
 
582
 
        #                 + unicode(self.log_visible))
 
 
513
        log.debug("Log visibility changed to: %s", self.log_visible)
 
584
515
    def change_log_display(self):
 
585
516
        """Change type of log display.
 
586
517
        Currently, this toggles wrapping of text lines."""
 
 
590
521
            self.log_wrap = "clip"
 
591
522
        for textwidget in self.log:
 
592
523
            textwidget.set_wrap_mode(self.log_wrap)
 
593
 
        #self.log_message("Wrap mode: " + self.log_wrap)
 
595
 
    def find_and_remove_client(self, path, name):
 
 
524
        log.debug("Wrap mode: %s", self.log_wrap)
 
 
526
    def find_and_remove_client(self, path, interfaces):
 
596
527
        """Find a client by its object path and remove it.
 
598
 
        This is connected to the ClientRemoved signal from the
 
 
529
        This is connected to the InterfacesRemoved signal from the
 
599
530
        Mandos server object."""
 
 
531
        if client_interface not in interfaces:
 
 
532
            # Not a Mandos client object; ignore
 
601
535
            client = self.clients_dict[path]
 
604
 
            self.log_message("Unknown client %r (%r) removed", name,
 
 
538
            log.warning("Unknown client %s removed", path)
 
609
 
    def add_new_client(self, path):
 
 
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
 
610
551
        client_proxy_object = self.bus.get_object(self.busname, path)
 
611
 
        self.add_client(MandosClientWidget(server_proxy_object
 
614
 
                                           =client_proxy_object,
 
 
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])),
 
623
560
    def add_client(self, client, path=None):
 
624
561
        self.clients.append(client)
 
626
563
            path = client.proxy.object_path
 
627
564
        self.clients_dict[path] = client
 
628
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
 
565
        self.clients.sort(key=lambda c: c.properties["Name"])
 
631
568
    def remove_client(self, client, path=None):
 
632
569
        self.clients.remove(client)
 
634
571
            path = client.proxy.object_path
 
635
572
        del self.clients_dict[path]
 
636
 
        if not self.clients_dict:
 
637
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
638
 
            # is completely emptied, we need to recreate it.
 
639
 
            self.clients = urwid.SimpleListWalker([])
 
643
575
    def refresh(self):
 
644
576
        """Redraw the screen"""
 
645
577
        canvas = self.topwidget.render(self.size, focus=True)
 
646
578
        self.screen.draw_screen(self.size, canvas)
 
649
581
        """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),
 
651
 
        self._input_callback_tag = (gobject.io_add_watch
 
 
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)))
 
655
633
        self.main_loop.run()
 
656
634
        # Main loop has finished, we should close everything now
 
657
 
        gobject.source_remove(self._input_callback_tag)
 
 
635
        GLib.source_remove(self._input_callback_tag)
 
 
636
        with warnings.catch_warnings():
 
 
637
            warnings.simplefilter("ignore", BytesWarning)
 
661
641
        self.main_loop.quit()
 
 
642
        log.removeHandler(self.loghandler)
 
 
643
        log.propagate = self.orig_log_propagate
 
663
645
    def process_input(self, source, condition):
 
664
646
        keys = self.screen.get_input()
 
665
 
        translations = { "ctrl n": "down",      # Emacs
 
666
 
                         "ctrl p": "up",        # Emacs
 
667
 
                         "ctrl v": "page down", # Emacs
 
668
 
                         "meta v": "page up",   # Emacs
 
669
 
                         " ": "page down",      # less
 
670
 
                         "f": "page down",      # less
 
671
 
                         "b": "page up",        # less
 
 
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
 
677
659
                key = translations[key]
 
678
660
            except KeyError:    # :-)
 
681
663
            if key == "q" or key == "Q":
 
684
666
            elif key == "window resize":
 
685
667
                self.size = self.screen.get_cols_rows()
 
687
 
            elif key == "\f":  # Ctrl-L
 
 
669
            elif key == "ctrl l":
 
689
672
            elif key == "l" or key == "D":
 
690
673
                self.toggle_log_display()
 
 
722
706
                    self.topwidget.set_focus(self.logbox)
 
724
 
            #elif (key == "end" or key == "meta >" or key == "G"
 
726
 
            #    pass            # xxx end-of-buffer
 
727
 
            #elif (key == "home" or key == "meta <" or key == "g"
 
729
 
            #    pass            # xxx beginning-of-buffer
 
730
 
            #elif key == "ctrl e" or key == "$":
 
731
 
            #    pass            # xxx move-end-of-line
 
732
 
            #elif key == "ctrl a" or key == "^":
 
733
 
            #    pass            # xxx move-beginning-of-line
 
734
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
736
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
739
 
            #    pass            # scroll up log
 
741
 
            #    pass            # scroll down log
 
 
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
 
742
733
            elif self.topwidget.selectable():
 
743
734
                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)
 
747
752
ui = UserInterface()
 
750
755
except KeyboardInterrupt:
 
753
 
    ui.log_message(unicode(e))
 
 
756
    with warnings.catch_warnings():
 
 
757
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
760
    with warnings.catch_warnings():
 
 
761
        warnings.filterwarnings("ignore", "", BytesWarning)