/mandos/release

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/release
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
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#!/usr/bin/python
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# -*- mode: python; coding: utf-8 -*-
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# 
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# Mandos Monitor - Control and monitor the Mandos server
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# 
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# Copyright © 2009-2012 Teddy Hogeborn
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# Copyright © 2009-2012 Björn Påhlsson
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# 
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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#     This program is distributed in the hope that it will be useful,
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#     but WITHOUT ANY WARRANTY; without even the implied warranty of
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#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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#     GNU General Public License for more details.
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# 
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# You should have received a copy of the GNU General Public License
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* mandos-ctl: Break long lines.
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# along with this program.  If not, see
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# <http://www.gnu.org/licenses/>.
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# 
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# Contact the authors at <mandos@recompile.se>.
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# 
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
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237.7.36 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Save match tag for
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from __future__ import (division, absolute_import, print_function,
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                        unicode_literals)
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237.7.127 by Teddy Hogeborn
* mandos: Use all new builtins.
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from future_builtins import *
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import sys
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import os
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import signal
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import datetime
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import urwid.curses_display
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import urwid
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from dbus.mainloop.glib import DBusGMainLoop
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import gobject
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import dbus
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import UserList
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import locale
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locale.setlocale(locale.LC_ALL, '')
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early commit to ease todays coding
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import logging
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logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
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# Some useful constants
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transitional stuff actually working
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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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version = "1.6.0"
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# Always run in monochrome mode
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urwid.curses_display.curses.has_colors = lambda : False
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# Urwid doesn't support blinking, but we want it.  Since we have no
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# use for underline on its own, we make underline also always blink.
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urwid.curses_display.curses.A_UNDERLINE |= (
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    urwid.curses_display.curses.A_BLINK)
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def isoformat_to_datetime(iso):
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    "Parse an ISO 8601 date string to a datetime.datetime()"
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    if not iso:
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        return None
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    d, t = iso.split("T", 1)
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    year, month, day = d.split("-", 2)
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    hour, minute, second = t.split(":", 2)
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    second, fraction = divmod(float(second), 1)
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    return datetime.datetime(int(year),
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                             int(month),
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                             int(day),
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                             int(hour),
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                             int(minute),
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                             int(second),           # Whole seconds
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                             int(fraction*1000000)) # Microseconds
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class MandosClientPropertyCache(object):
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    """This wraps a Mandos Client D-Bus proxy object, caches the
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    properties and calls a hook function when any of them are
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    changed.
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    """
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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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                                         client_interface,
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                                         byte_arrays=True))
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        if properties is None:
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            self.properties.update(
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                self.proxy.GetAll(client_interface,
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                                  dbus_interface
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                                  = dbus.PROPERTIES_IFACE))
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        super(MandosClientPropertyCache, self).__init__(**kwargs)
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    def _property_changed(self, property, value):
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        """Helper which takes positional arguments"""
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        return self.property_changed(property=property, value=value)
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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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        """
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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):
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        self.property_changed_match.remove()
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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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    """
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    def __init__(self, server_proxy_object=None, update_hook=None,
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                 delete_hook=None, logger=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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        # Logger
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        self.logger = logger
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        self._update_timer_callback_tag = None
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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__(**kwargs)
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        self.update()
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        self.opened = False
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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.proxy.connect_to_signal("CheckerStarted",
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                                         self.checker_started,
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                                         client_interface,
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                                         byte_arrays=True),
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            self.proxy.connect_to_signal("GotSecret",
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                                         self.got_secret,
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                                         client_interface,
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                                         byte_arrays=True),
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            self.proxy.connect_to_signal("NeedApproval",
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                                         self.need_approval,
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                                         client_interface,
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                                         byte_arrays=True),
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            self.proxy.connect_to_signal("Rejected",
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                                         self.rejected,
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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 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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        """
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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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                                               (1000,
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                                                self.update_timer))
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* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
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        elif not (flag or self._update_timer_callback_tag is None):
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            gobject.source_remove(self._update_timer_callback_tag)
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            self._update_timer_callback_tag = None
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    def checker_completed(self, exitstatus, condition, command):
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        if exitstatus == 0:
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            self.update()
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            return
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        # Checker failed
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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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        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):
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* mandos-monitor: Use new string format method.
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            self.logger('Checker for client {0} (command "{1}")'
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                        ' dumped core'
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* mandos-monitor: Use new string format method.
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                        .format(self.properties["Name"], command))
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* mandos (AvahiService.entry_group_state_changed): Better debug log
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        else:
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* mandos-monitor: Use new string format method.
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            self.logger('Checker for client {0} completed'
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                        ' mysteriously'
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                        .format(self.properties["Name"]))
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* mandos (AvahiService.entry_group_state_changed): Better debug log
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        self.update()
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* mandos (MandosServer.handle_ipc): Better log message.
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    def checker_started(self, command):
237.7.85 by Björn Påhlsson
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        """Server signals that a checker started. This could be useful
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           to log in the future. """
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* mandos-monitor: Use new string format method.
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        #self.logger('Client {0} started checker "{1}"'
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        #            .format(self.properties["Name"],
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        #                    unicode(command)))
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        pass
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* mandos (MandosServer.handle_ipc): Better log message.
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216
    def got_secret(self):
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* mandos-monitor: Use new string format method.
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        self.logger('Client {0} received its secret'
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                    .format(self.properties["Name"]))
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* mandos (MandosServer.handle_ipc): Better log message.
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early commit to ease todays coding
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    def need_approval(self, timeout, default):
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        if not default:
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* mandos-monitor: Use new string format method.
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            message = 'Client {0} needs approval within {1} seconds'
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early commit to ease todays coding
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        else:
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* mandos-monitor: Use new string format method.
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            message = 'Client {0} will get its secret in {1} seconds'
225
        self.logger(message.format(self.properties["Name"],
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                                   timeout/1000))
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early commit to ease todays coding
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228
    def rejected(self, reason):
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* mandos-monitor: Use new string format method.
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        self.logger('Client {0} was rejected; reason: {1}'
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                    .format(self.properties["Name"], reason))
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232
    def selectable(self):
233
        """Make this a "selectable" widget.
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        This overrides the method from urwid.FlowWidget."""
235
        return True
236
    
237.8.1 by teddy at bsnet
* mandos-monitor: Use only unicode string literals.
237
    def rows(self, maxcolrow, focus=False):
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        """How many rows this widget will occupy might depend on
239
        whether we have focus or not.
240
        This overrides the method from urwid.FlowWidget"""
237.8.1 by teddy at bsnet
* mandos-monitor: Use only unicode string literals.
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        return self.current_widget(focus).rows(maxcolrow, focus=focus)
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
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243
    def current_widget(self, focus=False):
244
        if focus or self.opened:
245
            return self._focus_widget
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        return self._widget
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248
    def update(self):
249
        "Called when what is visible on the screen should be updated."
250
        # How to add standout mode to a style
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
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        with_standout = { "normal": "standout",
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                          "bold": "bold-standout",
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                          "underline-blink":
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                              "underline-blink-standout",
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                          "bold-underline-blink":
256
                              "bold-underline-blink-standout",
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* mandos-monitor: New prototype version of interactive server
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                          }
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* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
258
        
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* mandos-monitor: New prototype version of interactive server
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        # Rebuild focus and non-focus widgets using current properties
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* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
260
        
24.1.154 by Björn Påhlsson
merge
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        # Base part of a client. Name!
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* mandos-monitor: Use new string format method.
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        base = '{name}: '.format(name=self.properties["Name"])
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
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        if not self.properties["Enabled"]:
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            message = "DISABLED"
237.7.129 by Teddy Hogeborn
* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
265
            self.using_timer(False)
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
266
        elif self.properties["ApprovalPending"]:
237.2.205 by Teddy Hogeborn
* DBUS-API: Document new "LastApprovalRequest" client property.
267
            timeout = datetime.timedelta(milliseconds
268
                                         = self.properties
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
269
                                         ["ApprovalDelay"])
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* DBUS-API: Document new "LastApprovalRequest" client property.
270
            last_approval_request = isoformat_to_datetime(
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* mandos-monitor: Use unicode string literals. Update __future__
271
                self.properties["LastApprovalRequest"])
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* DBUS-API: Document new "LastApprovalRequest" client property.
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            if last_approval_request is not None:
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* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
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                timer = max(timeout - (datetime.datetime.utcnow()
274
                                       - last_approval_request),
275
                            datetime.timedelta())
237.2.205 by Teddy Hogeborn
* DBUS-API: Document new "LastApprovalRequest" client property.
276
            else:
277
                timer = datetime.timedelta()
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* mandos-monitor: Use unicode string literals. Update __future__
278
            if self.properties["ApprovedByDefault"]:
237.7.115 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
279
                message = "Approval in {0}. (d)eny?"
24.1.159 by Björn Påhlsson
added approval to mandos-ctl
280
            else:
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* mandos-monitor: Use new string format method.
281
                message = "Denial in {0}. (a)pprove?"
282
            message = message.format(unicode(timer).rsplit(".", 1)[0])
237.7.129 by Teddy Hogeborn
* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
283
            self.using_timer(True)
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Use the new Client.LastCheckerStatus property.
284
        elif self.properties["LastCheckerStatus"] != 0:
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* mandos-ctl: Break long lines.
285
            # When checker has failed, show timer until client expires
24.1.179 by Björn Påhlsson
New feature:
286
            expires = self.properties["Expires"]
287
            if expires == "":
288
                timer = datetime.timedelta(0)
289
            else:
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* mandos-ctl: Break long lines.
290
                expires = (datetime.datetime.strptime
291
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
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* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
292
                timer = max(expires - datetime.datetime.utcnow(),
293
                            datetime.timedelta())
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
294
            message = ('A checker has failed! Time until client'
237.7.115 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
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                       ' gets disabled: {0}'
296
                       .format(unicode(timer).rsplit(".", 1)[0]))
237.7.129 by Teddy Hogeborn
* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
297
            self.using_timer(True)
24.1.154 by Björn Påhlsson
merge
298
        else:
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
299
            message = "enabled"
237.7.129 by Teddy Hogeborn
* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
300
            self.using_timer(False)
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* mandos-monitor: Use new string format method.
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        self._text = "{0}{1}".format(base, message)
237.7.129 by Teddy Hogeborn
* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
302
        
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
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        if not urwid.supports_unicode():
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* mandos-monitor: Use unicode string literals. Update __future__
304
            self._text = self._text.encode("ascii", "replace")
305
        textlist = [("normal", self._text)]
237.2.167 by Teddy Hogeborn
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        self._text_widget.set_text(textlist)
307
        self._focus_text_widget.set_text([(with_standout[text[0]],
308
                                           text[1])
309
                                          if isinstance(text, tuple)
310
                                          else text
311
                                          for text in textlist])
312
        self._widget = self._text_widget
313
        self._focus_widget = urwid.AttrWrap(self._focus_text_widget,
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
314
                                            "standout")
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
315
        # Run update hook, if any
316
        if self.update_hook is not None:
317
            self.update_hook()
318
    
237.2.180 by Teddy Hogeborn
* mandos (AvahiService.entry_group_state_changed): Better debug log
319
    def update_timer(self):
24.1.179 by Björn Påhlsson
New feature:
320
        """called by gobject. Will indefinitely loop until
321
        gobject.source_remove() on tag is called"""
237.2.180 by Teddy Hogeborn
* mandos (AvahiService.entry_group_state_changed): Better debug log
322
        self.update()
323
        return True             # Keep calling this
324
    
237.7.128 by Teddy Hogeborn
* mandos-monitor: Speedup: Use properties from D-Bus
325
    def delete(self, **kwargs):
237.2.180 by Teddy Hogeborn
* mandos (AvahiService.entry_group_state_changed): Better debug log
326
        if self._update_timer_callback_tag is not None:
327
            gobject.source_remove(self._update_timer_callback_tag)
328
            self._update_timer_callback_tag = None
237.7.36 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Save match tag for
329
        for match in self.match_objects:
330
            match.remove()
331
        self.match_objects = ()
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
332
        if self.delete_hook is not None:
333
            self.delete_hook(self)
237.7.128 by Teddy Hogeborn
* mandos-monitor: Speedup: Use properties from D-Bus
334
        return super(MandosClientWidget, self).delete(**kwargs)
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
335
    
237.8.1 by teddy at bsnet
* mandos-monitor: Use only unicode string literals.
336
    def render(self, maxcolrow, focus=False):
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
337
        """Render differently if we have focus.
338
        This overrides the method from urwid.FlowWidget"""
237.8.1 by teddy at bsnet
* mandos-monitor: Use only unicode string literals.
339
        return self.current_widget(focus).render(maxcolrow,
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
340
                                                 focus=focus)
341
    
237.8.1 by teddy at bsnet
* mandos-monitor: Use only unicode string literals.
342
    def keypress(self, maxcolrow, key):
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
343
        """Handle keys.
344
        This overrides the method from urwid.FlowWidget"""
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
345
        if key == "+":
237.7.30 by Teddy Hogeborn
* mandos: Tolerate restarting Avahi servers. Also Changed to new
346
            self.proxy.Enable(dbus_interface = client_interface,
347
                              ignore_reply=True)
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
348
        elif key == "-":
237.7.30 by Teddy Hogeborn
* mandos: Tolerate restarting Avahi servers. Also Changed to new
349
            self.proxy.Disable(dbus_interface = client_interface,
350
                               ignore_reply=True)
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
351
        elif key == "a":
24.1.154 by Björn Påhlsson
merge
352
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
237.7.30 by Teddy Hogeborn
* mandos: Tolerate restarting Avahi servers. Also Changed to new
353
                               dbus_interface = client_interface,
354
                               ignore_reply=True)
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
355
        elif key == "d":
24.1.154 by Björn Påhlsson
merge
356
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
237.7.30 by Teddy Hogeborn
* mandos: Tolerate restarting Avahi servers. Also Changed to new
357
                                  dbus_interface = client_interface,
358
                               ignore_reply=True)
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
359
        elif key == "R" or key == "_" or key == "ctrl k":
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
360
            self.server_proxy_object.RemoveClient(self.proxy
237.7.30 by Teddy Hogeborn
* mandos: Tolerate restarting Avahi servers. Also Changed to new
361
                                                  .object_path,
362
                                                  ignore_reply=True)
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
363
        elif key == "s":
237.7.30 by Teddy Hogeborn
* mandos: Tolerate restarting Avahi servers. Also Changed to new
364
            self.proxy.StartChecker(dbus_interface = client_interface,
365
                                    ignore_reply=True)
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
366
        elif key == "S":
237.7.30 by Teddy Hogeborn
* mandos: Tolerate restarting Avahi servers. Also Changed to new
367
            self.proxy.StopChecker(dbus_interface = client_interface,
368
                                   ignore_reply=True)
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
369
        elif key == "C":
237.7.30 by Teddy Hogeborn
* mandos: Tolerate restarting Avahi servers. Also Changed to new
370
            self.proxy.CheckedOK(dbus_interface = client_interface,
371
                                 ignore_reply=True)
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
372
        # xxx
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
373
#         elif key == "p" or key == "=":
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
374
#             self.proxy.pause()
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
375
#         elif key == "u" or key == ":":
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
376
#             self.proxy.unpause()
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
377
#         elif key == "RET":
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
378
#             self.open()
379
        else:
380
            return key
381
    
237.7.128 by Teddy Hogeborn
* mandos-monitor: Speedup: Use properties from D-Bus
382
    def property_changed(self, property=None, **kwargs):
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
383
        """Call self.update() if old value is not new value.
384
        This overrides the method from MandosClientPropertyCache"""
385
        property_name = unicode(property)
386
        old_value = self.properties.get(property_name)
387
        super(MandosClientWidget, self).property_changed(
237.7.128 by Teddy Hogeborn
* mandos-monitor: Speedup: Use properties from D-Bus
388
            property=property, **kwargs)
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
389
        if self.properties.get(property_name) != old_value:
390
            self.update()
391
392
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
393
class ConstrainedListBox(urwid.ListBox):
394
    """Like a normal urwid.ListBox, but will consume all "up" or
395
    "down" key presses, thus not allowing any containing widgets to
396
    use them as an excuse to shift focus away from this widget.
397
    """
237.7.128 by Teddy Hogeborn
* mandos-monitor: Speedup: Use properties from D-Bus
398
    def keypress(self, *args, **kwargs):
399
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
400
        if ret in ("up", "down"):
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
401
            return
402
        return ret
403
404
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
405
class UserInterface(object):
406
    """This is the entire user interface - the whole screen
407
    with boxes, lists of client widgets, etc.
408
    """
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
409
    def __init__(self, max_log_length=1000):
410
        DBusGMainLoop(set_as_default=True)
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
411
        
412
        self.screen = urwid.curses_display.Screen()
413
        
414
        self.screen.register_palette((
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
415
                ("normal",
416
                 "default", "default", None),
417
                ("bold",
418
                 "default", "default", "bold"),
419
                ("underline-blink",
420
                 "default", "default", "underline"),
421
                ("standout",
422
                 "default", "default", "standout"),
423
                ("bold-underline-blink",
424
                 "default", "default", ("bold", "underline")),
425
                ("bold-standout",
426
                 "default", "default", ("bold", "standout")),
427
                ("underline-blink-standout",
428
                 "default", "default", ("underline", "standout")),
429
                ("bold-underline-blink-standout",
430
                 "default", "default", ("bold", "underline",
431
                                          "standout")),
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
432
                ))
433
        
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
434
        if urwid.supports_unicode():
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
435
            self.divider = "─" # \u2500
436
            #self.divider = "━" # \u2501
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
437
        else:
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
438
            #self.divider = "-" # \u002d
439
            self.divider = "_" # \u005f
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
440
        
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
441
        self.screen.start()
442
        
443
        self.size = self.screen.get_cols_rows()
444
        
445
        self.clients = urwid.SimpleListWalker([])
446
        self.clients_dict = {}
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
447
        
448
        # We will add Text widgets to this list
449
        self.log = []
450
        self.max_log_length = max_log_length
451
        
452
        # We keep a reference to the log widget so we can remove it
453
        # from the ListWalker without it getting destroyed
454
        self.logbox = ConstrainedListBox(self.log)
455
        
456
        # This keeps track of whether self.uilist currently has
457
        # self.logbox in it or not
458
        self.log_visible = True
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
459
        self.log_wrap = "any"
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
460
        
461
        self.rebuild()
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
462
        self.log_message_raw(("bold",
463
                              "Mandos Monitor version " + version))
464
        self.log_message_raw(("bold",
465
                              "q: Quit  ?: Help"))
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
466
        
467
        self.busname = domain + '.Mandos'
468
        self.main_loop = gobject.MainLoop()
469
    
237.2.172 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
470
    def client_not_found(self, fingerprint, address):
237.7.115 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
471
        self.log_message("Client with address {0} and fingerprint"
472
                         " {1} could not be found"
473
                         .format(address, fingerprint))
237.2.172 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
474
    
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
475
    def rebuild(self):
476
        """This rebuilds the User Interface.
477
        Call this when the widget layout needs to change"""
478
        self.uilist = []
479
        #self.uilist.append(urwid.ListBox(self.clients))
237.2.185 by Teddy Hogeborn
Rename all D-Bus properties to conform to D-Bus naming conventions;
480
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
481
                                                          clients),
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
482
                                       #header=urwid.Divider(),
483
                                       header=None,
237.2.185 by Teddy Hogeborn
Rename all D-Bus properties to conform to D-Bus naming conventions;
484
                                       footer=
485
                                       urwid.Divider(div_char=
486
                                                     self.divider)))
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
487
        if self.log_visible:
488
            self.uilist.append(self.logbox)
489
        self.topwidget = urwid.Pile(self.uilist)
490
    
237.2.172 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
491
    def log_message(self, message):
237.7.160 by Björn Påhlsson
added note messages when mandos-monitor starts without running server,
492
        """Log message formatted with timestamp"""
237.2.172 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
493
        timestamp = datetime.datetime.now().isoformat()
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
494
        self.log_message_raw(timestamp + ": " + message)
237.2.172 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
495
    
496
    def log_message_raw(self, markup):
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
497
        """Add a log message to the log buffer."""
498
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
499
        if (self.max_log_length
500
            and len(self.log) > self.max_log_length):
501
            del self.log[0:len(self.log)-self.max_log_length-1]
237.2.171 by Teddy Hogeborn
* debian/rules: Only set BROKEN_PIE if binutils is a specific range of
502
        self.logbox.set_focus(len(self.logbox.body.contents),
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
503
                              coming_from="above")
237.2.172 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
504
        self.refresh()
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
505
    
506
    def toggle_log_display(self):
507
        """Toggle visibility of the log buffer."""
508
        self.log_visible = not self.log_visible
509
        self.rebuild()
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
510
        #self.log_message("Log visibility changed to: "
237.2.193 by teddy at bsnet
* mandos-monitor.xml: New.
511
        #                 + unicode(self.log_visible))
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
512
    
513
    def change_log_display(self):
514
        """Change type of log display.
515
        Currently, this toggles wrapping of text lines."""
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
516
        if self.log_wrap == "clip":
517
            self.log_wrap = "any"
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
518
        else:
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
519
            self.log_wrap = "clip"
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
520
        for textwidget in self.log:
521
            textwidget.set_wrap_mode(self.log_wrap)
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
522
        #self.log_message("Wrap mode: " + self.log_wrap)
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
523
    
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
524
    def find_and_remove_client(self, path, name):
237.7.36 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Save match tag for
525
        """Find a client by its object path and remove it.
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
526
        
527
        This is connected to the ClientRemoved signal from the
528
        Mandos server object."""
529
        try:
530
            client = self.clients_dict[path]
531
        except KeyError:
532
            # not found?
237.7.115 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
533
            self.log_message("Unknown client {0!r} ({1!r}) removed"
534
                             .format(name, path))
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
535
            return
237.7.36 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Save match tag for
536
        client.delete()
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
537
    
237.2.174 by Teddy Hogeborn
More consistent terminology: Clients are no longer "invalid" - they
538
    def add_new_client(self, path):
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
539
        client_proxy_object = self.bus.get_object(self.busname, path)
540
        self.add_client(MandosClientWidget(server_proxy_object
541
                                           =self.mandos_serv,
542
                                           proxy_object
543
                                           =client_proxy_object,
544
                                           update_hook
545
                                           =self.refresh,
546
                                           delete_hook
237.2.174 by Teddy Hogeborn
More consistent terminology: Clients are no longer "invalid" - they
547
                                           =self.remove_client,
548
                                           logger
549
                                           =self.log_message),
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
550
                        path=path)
551
    
552
    def add_client(self, client, path=None):
553
        self.clients.append(client)
554
        if path is None:
555
            path = client.proxy.object_path
556
        self.clients_dict[path] = client
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
557
        self.clients.sort(None, lambda c: c.properties["Name"])
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
558
        self.refresh()
559
    
560
    def remove_client(self, client, path=None):
561
        self.clients.remove(client)
562
        if path is None:
563
            path = client.proxy.object_path
564
        del self.clients_dict[path]
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
565
        if not self.clients_dict:
566
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
567
            # is completely emptied, we need to recreate it.
568
            self.clients = urwid.SimpleListWalker([])
569
            self.rebuild()
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
570
        self.refresh()
571
    
572
    def refresh(self):
573
        """Redraw the screen"""
574
        canvas = self.topwidget.render(self.size, focus=True)
575
        self.screen.draw_screen(self.size, canvas)
576
    
577
    def run(self):
578
        """Start the main loop and exit when it's done."""
237.7.85 by Björn Påhlsson
nicer stacktrace when mandos-monitor fail during startup
579
        self.bus = dbus.SystemBus()
580
        mandos_dbus_objc = self.bus.get_object(
581
            self.busname, "/", follow_name_owner_changes=True)
582
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
583
                                          dbus_interface
584
                                          = server_interface)
585
        try:
586
            mandos_clients = (self.mandos_serv
587
                              .GetAllClientsWithProperties())
237.7.160 by Björn Påhlsson
added note messages when mandos-monitor starts without running server,
588
            if not mandos_clients:
589
                self.log_message_raw(("bold", "Note: Server has no clients."))
237.7.85 by Björn Påhlsson
nicer stacktrace when mandos-monitor fail during startup
590
        except dbus.exceptions.DBusException:
237.7.164 by Teddy Hogeborn
* mandos-ctl (string_to_delta): Try to parse RFC 3339 duration before
591
            self.log_message_raw(("bold", "Note: No Mandos server running."))
237.7.85 by Björn Påhlsson
nicer stacktrace when mandos-monitor fail during startup
592
            mandos_clients = dbus.Dictionary()
593
        
594
        (self.mandos_serv
595
         .connect_to_signal("ClientRemoved",
596
                            self.find_and_remove_client,
597
                            dbus_interface=server_interface,
598
                            byte_arrays=True))
599
        (self.mandos_serv
600
         .connect_to_signal("ClientAdded",
601
                            self.add_new_client,
602
                            dbus_interface=server_interface,
603
                            byte_arrays=True))
604
        (self.mandos_serv
605
         .connect_to_signal("ClientNotFound",
606
                            self.client_not_found,
607
                            dbus_interface=server_interface,
608
                            byte_arrays=True))
609
        for path, client in mandos_clients.iteritems():
610
            client_proxy_object = self.bus.get_object(self.busname,
611
                                                      path)
612
            self.add_client(MandosClientWidget(server_proxy_object
613
                                               =self.mandos_serv,
614
                                               proxy_object
615
                                               =client_proxy_object,
616
                                               properties=client,
617
                                               update_hook
618
                                               =self.refresh,
619
                                               delete_hook
620
                                               =self.remove_client,
621
                                               logger
622
                                               =self.log_message),
623
                            path=path)
237.7.128 by Teddy Hogeborn
* mandos-monitor: Speedup: Use properties from D-Bus
624
        
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
625
        self.refresh()
626
        self._input_callback_tag = (gobject.io_add_watch
627
                                    (sys.stdin.fileno(),
628
                                     gobject.IO_IN,
629
                                     self.process_input))
630
        self.main_loop.run()
631
        # Main loop has finished, we should close everything now
632
        gobject.source_remove(self._input_callback_tag)
633
        self.screen.stop()
634
    
635
    def stop(self):
636
        self.main_loop.quit()
637
    
638
    def process_input(self, source, condition):
639
        keys = self.screen.get_input()
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
640
        translations = { "ctrl n": "down",      # Emacs
641
                         "ctrl p": "up",        # Emacs
642
                         "ctrl v": "page down", # Emacs
643
                         "meta v": "page up",   # Emacs
644
                         " ": "page down",      # less
645
                         "f": "page down",      # less
646
                         "b": "page up",        # less
647
                         "j": "down",           # vi
648
                         "k": "up",             # vi
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
649
                         }
650
        for key in keys:
651
            try:
652
                key = translations[key]
653
            except KeyError:    # :-)
654
                pass
655
            
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
656
            if key == "q" or key == "Q":
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
657
                self.stop()
658
                break
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
659
            elif key == "window resize":
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
660
                self.size = self.screen.get_cols_rows()
661
                self.refresh()
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
662
            elif key == "\f":  # Ctrl-L
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
663
                self.refresh()
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
664
            elif key == "l" or key == "D":
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
665
                self.toggle_log_display()
666
                self.refresh()
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
667
            elif key == "w" or key == "i":
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
668
                self.change_log_display()
669
                self.refresh()
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
670
            elif key == "?" or key == "f1" or key == "esc":
237.2.170 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
671
                if not self.log_visible:
672
                    self.log_visible = True
673
                    self.rebuild()
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
674
                self.log_message_raw(("bold",
675
                                      "  ".
676
                                      join(("q: Quit",
677
                                            "?: Help",
678
                                            "l: Log window toggle",
679
                                            "TAB: Switch window",
680
                                            "w: Wrap (log)"))))
681
                self.log_message_raw(("bold",
682
                                      "  "
683
                                      .join(("Clients:",
684
                                             "+: Enable",
685
                                             "-: Disable",
686
                                             "R: Remove",
687
                                             "s: Start new checker",
688
                                             "S: Stop checker",
689
                                             "C: Checker OK",
690
                                             "a: Approve",
691
                                             "d: Deny"))))
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
692
                self.refresh()
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
693
            elif key == "tab":
237.2.168 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
694
                if self.topwidget.get_focus() is self.logbox:
695
                    self.topwidget.set_focus(0)
696
                else:
697
                    self.topwidget.set_focus(self.logbox)
698
                self.refresh()
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
699
            #elif (key == "end" or key == "meta >" or key == "G"
700
            #      or key == ">"):
237.2.170 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
701
            #    pass            # xxx end-of-buffer
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
702
            #elif (key == "home" or key == "meta <" or key == "g"
703
            #      or key == "<"):
237.2.170 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
704
            #    pass            # xxx beginning-of-buffer
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
705
            #elif key == "ctrl e" or key == "$":
237.2.170 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
706
            #    pass            # xxx move-end-of-line
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
707
            #elif key == "ctrl a" or key == "^":
237.2.170 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
708
            #    pass            # xxx move-beginning-of-line
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
709
            #elif key == "ctrl b" or key == "meta (" or key == "h":
237.2.170 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
710
            #    pass            # xxx left
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
711
            #elif key == "ctrl f" or key == "meta )" or key == "l":
237.2.170 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
712
            #    pass            # xxx right
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
713
            #elif key == "a":
237.2.170 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
714
            #    pass            # scroll up log
237.8.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
715
            #elif key == "z":
237.2.170 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
716
            #    pass            # scroll down log
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
717
            elif self.topwidget.selectable():
718
                self.topwidget.keypress(self.size, key)
719
                self.refresh()
720
        return True
721
722
ui = UserInterface()
723
try:
724
    ui.run()
24.1.159 by Björn Påhlsson
added approval to mandos-ctl
725
except KeyboardInterrupt:
726
    ui.screen.stop()
237.2.174 by Teddy Hogeborn
More consistent terminology: Clients are no longer "invalid" - they
727
except Exception, e:
728
    ui.log_message(unicode(e))
237.2.167 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
729
    ui.screen.stop()
730
    raise