/mandos/trunk

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/trunk
404 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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Update copyright year to "2010" wherever appropriate.
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# 
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# Mandos Monitor - Control and monitor the Mandos server
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# 
544 by Teddy Hogeborn
Updated year in copyright notices.
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# Copyright © 2009-2012 Teddy Hogeborn
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# Copyright © 2009-2012 Björn Påhlsson
444 by Teddy Hogeborn
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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
572 by Teddy Hogeborn
* 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/>.
444 by Teddy Hogeborn
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# 
505.1.2 by Teddy Hogeborn
Change "fukt.bsnet.se" to "recompile.se" throughout.
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# Contact the authors at <mandos@recompile.se>.
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# 
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
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488 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)
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
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579 by Teddy Hogeborn
* mandos: Use all new builtins.
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from future_builtins import *
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404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
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import sys
409 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
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import os
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* mandos-monitor: New prototype version of interactive server
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import signal
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409 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
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import datetime
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404 by Teddy Hogeborn
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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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411 by Teddy Hogeborn
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import locale
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463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
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locale.setlocale(locale.LC_ALL, '')
411 by Teddy Hogeborn
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24.1.153 by Björn Påhlsson
early commit to ease todays coding
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import logging
463.1.2 by teddy at bsnet
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logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
24.1.153 by Björn Påhlsson
early commit to ease todays coding
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404 by Teddy Hogeborn
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# Some useful constants
24.1.186 by Björn Påhlsson
transitional stuff actually working
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domain = 'se.recompile'
463.1.2 by teddy at bsnet
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server_interface = domain + '.Mandos'
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client_interface = domain + '.Mandos.Client'
237.4.28 by Teddy Hogeborn
* Makefile (version): Changed to "1.5.3".
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version = "1.5.3"
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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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417 by Teddy Hogeborn
* mandos (AvahiService.entry_group_state_changed): Better debug log
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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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404 by Teddy Hogeborn
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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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early commit to ease todays coding
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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)
404 by Teddy Hogeborn
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110
    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
405 by Teddy Hogeborn
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        self.properties[property] = value
488 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Save match tag for
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580 by Teddy Hogeborn
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    def delete(self):
488 by Teddy Hogeborn
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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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125
    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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417 by Teddy Hogeborn
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        self._update_timer_callback_tag = None
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404 by Teddy Hogeborn
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        # The widget shown normally
463.1.2 by teddy at bsnet
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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("")
580 by Teddy Hogeborn
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        super(MandosClientWidget, self).__init__(**kwargs)
404 by Teddy Hogeborn
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        self.update()
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        self.opened = False
442 by Teddy Hogeborn
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488 by Teddy Hogeborn
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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))
567 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
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        #self.logger('Created client {0}'
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        #            .format(self.properties["Name"]))
442 by Teddy Hogeborn
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170
    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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* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
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        if flag and self._update_timer_callback_tag is None:
24.1.179 by Björn Påhlsson
New feature:
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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))
581 by Teddy Hogeborn
* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
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        elif not (flag or self._update_timer_callback_tag is None):
442 by Teddy Hogeborn
* DBUS-API: Document new "LastApprovalRequest" client property.
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            gobject.source_remove(self._update_timer_callback_tag)
181
            self._update_timer_callback_tag = None
409 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
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183
    def checker_completed(self, exitstatus, condition, command):
184
        if exitstatus == 0:
417 by Teddy Hogeborn
* mandos (AvahiService.entry_group_state_changed): Better debug log
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            self.update()
409 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
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            return
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        # Checker failed
409 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
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        if os.WIFEXITED(condition):
567 by Teddy Hogeborn
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            self.logger('Checker for client {0} (command "{1}")'
190
                        ' failed with exit code {2}'
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                        .format(self.properties["Name"], command,
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                                os.WEXITSTATUS(condition)))
417 by Teddy Hogeborn
* mandos (AvahiService.entry_group_state_changed): Better debug log
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        elif os.WIFSIGNALED(condition):
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* mandos-monitor: Use new string format method.
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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)))
417 by Teddy Hogeborn
* mandos (AvahiService.entry_group_state_changed): Better debug log
198
        elif os.WCOREDUMP(condition):
567 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
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            self.logger('Checker for client {0} (command "{1}")'
463.1.2 by teddy at bsnet
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                        ' dumped core'
567 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
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                        .format(self.properties["Name"], command))
417 by Teddy Hogeborn
* mandos (AvahiService.entry_group_state_changed): Better debug log
202
        else:
567 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
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            self.logger('Checker for client {0} completed'
204
                        ' mysteriously'
205
                        .format(self.properties["Name"]))
417 by Teddy Hogeborn
* mandos (AvahiService.entry_group_state_changed): Better debug log
206
        self.update()
409 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
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208
    def checker_started(self, command):
537 by Björn Påhlsson
nicer stacktrace when mandos-monitor fail during startup
209
        """Server signals that a checker started. This could be useful
210
           to log in the future. """
567 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
211
        #self.logger('Client {0} started checker "{1}"'
212
        #            .format(self.properties["Name"],
213
        #                    unicode(command)))
24.1.153 by Björn Påhlsson
early commit to ease todays coding
214
        pass
409 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
215
    
216
    def got_secret(self):
567 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
217
        self.logger('Client {0} received its secret'
218
                    .format(self.properties["Name"]))
409 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
219
    
24.1.153 by Björn Påhlsson
early commit to ease todays coding
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    def need_approval(self, timeout, default):
221
        if not default:
567 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
222
            message = 'Client {0} needs approval within {1} seconds'
24.1.153 by Björn Påhlsson
early commit to ease todays coding
223
        else:
567 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
224
            message = 'Client {0} will get its secret in {1} seconds'
225
        self.logger(message.format(self.properties["Name"],
226
                                   timeout/1000))
24.1.153 by Björn Påhlsson
early commit to ease todays coding
227
    
228
    def rejected(self, reason):
567 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
229
        self.logger('Client {0} was rejected; reason: {1}'
230
                    .format(self.properties["Name"], reason))
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
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232
    def selectable(self):
233
        """Make this a "selectable" widget.
234
        This overrides the method from urwid.FlowWidget."""
235
        return True
236
    
463.1.1 by teddy at bsnet
* mandos-monitor: Use only unicode string literals.
237
    def rows(self, maxcolrow, focus=False):
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
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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"""
463.1.1 by teddy at bsnet
* mandos-monitor: Use only unicode string literals.
241
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
404 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
246
        return self._widget
247
    
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
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
251
        with_standout = { "normal": "standout",
252
                          "bold": "bold-standout",
253
                          "underline-blink":
254
                              "underline-blink-standout",
255
                          "bold-underline-blink":
256
                              "bold-underline-blink-standout",
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
257
                          }
581 by Teddy Hogeborn
* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
258
        
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
259
        # Rebuild focus and non-focus widgets using current properties
581 by Teddy Hogeborn
* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
260
        
24.1.154 by Björn Påhlsson
merge
261
        # Base part of a client. Name!
567 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
262
        base = '{name}: '.format(name=self.properties["Name"])
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
263
        if not self.properties["Enabled"]:
264
            message = "DISABLED"
581 by Teddy Hogeborn
* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
265
            self.using_timer(False)
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
266
        elif self.properties["ApprovalPending"]:
442 by Teddy Hogeborn
* DBUS-API: Document new "LastApprovalRequest" client property.
267
            timeout = datetime.timedelta(milliseconds
268
                                         = self.properties
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
269
                                         ["ApprovalDelay"])
442 by Teddy Hogeborn
* DBUS-API: Document new "LastApprovalRequest" client property.
270
            last_approval_request = isoformat_to_datetime(
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
271
                self.properties["LastApprovalRequest"])
442 by Teddy Hogeborn
* DBUS-API: Document new "LastApprovalRequest" client property.
272
            if last_approval_request is not None:
581 by Teddy Hogeborn
* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
273
                timer = max(timeout - (datetime.datetime.utcnow()
274
                                       - last_approval_request),
275
                            datetime.timedelta())
442 by Teddy Hogeborn
* DBUS-API: Document new "LastApprovalRequest" client property.
276
            else:
277
                timer = datetime.timedelta()
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
278
            if self.properties["ApprovedByDefault"]:
567 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:
567 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
281
                message = "Denial in {0}. (a)pprove?"
282
            message = message.format(unicode(timer).rsplit(".", 1)[0])
581 by Teddy Hogeborn
* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
283
            self.using_timer(True)
557 by Teddy Hogeborn
Use the new Client.LastCheckerStatus property.
284
        elif self.properties["LastCheckerStatus"] != 0:
572 by Teddy Hogeborn
* 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:
572 by Teddy Hogeborn
* mandos-ctl: Break long lines.
290
                expires = (datetime.datetime.strptime
291
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
581 by Teddy Hogeborn
* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
292
                timer = max(expires - datetime.datetime.utcnow(),
293
                            datetime.timedelta())
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
294
            message = ('A checker has failed! Time until client'
567 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
295
                       ' gets disabled: {0}'
296
                       .format(unicode(timer).rsplit(".", 1)[0]))
581 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:
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
299
            message = "enabled"
581 by Teddy Hogeborn
* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
300
            self.using_timer(False)
567 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
301
        self._text = "{0}{1}".format(base, message)
581 by Teddy Hogeborn
* mandos (Client.enable, Client.disable, ClientDBus.approve): Call
302
        
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
303
        if not urwid.supports_unicode():
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
304
            self._text = self._text.encode("ascii", "replace")
305
        textlist = [("normal", self._text)]
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
306
        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,
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
314
                                            "standout")
404 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
    
417 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"""
417 by Teddy Hogeborn
* mandos (AvahiService.entry_group_state_changed): Better debug log
322
        self.update()
323
        return True             # Keep calling this
324
    
580 by Teddy Hogeborn
* mandos-monitor: Speedup: Use properties from D-Bus
325
    def delete(self, **kwargs):
417 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
488 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Save match tag for
329
        for match in self.match_objects:
330
            match.remove()
331
        self.match_objects = ()
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
332
        if self.delete_hook is not None:
333
            self.delete_hook(self)
580 by Teddy Hogeborn
* mandos-monitor: Speedup: Use properties from D-Bus
334
        return super(MandosClientWidget, self).delete(**kwargs)
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
335
    
463.1.1 by teddy at bsnet
* mandos-monitor: Use only unicode string literals.
336
    def render(self, maxcolrow, focus=False):
404 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"""
463.1.1 by teddy at bsnet
* mandos-monitor: Use only unicode string literals.
339
        return self.current_widget(focus).render(maxcolrow,
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
340
                                                 focus=focus)
341
    
463.1.1 by teddy at bsnet
* mandos-monitor: Use only unicode string literals.
342
    def keypress(self, maxcolrow, key):
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
343
        """Handle keys.
344
        This overrides the method from urwid.FlowWidget"""
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
345
        if key == "+":
482 by Teddy Hogeborn
* mandos: Tolerate restarting Avahi servers. Also Changed to new
346
            self.proxy.Enable(dbus_interface = client_interface,
347
                              ignore_reply=True)
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
348
        elif key == "-":
482 by Teddy Hogeborn
* mandos: Tolerate restarting Avahi servers. Also Changed to new
349
            self.proxy.Disable(dbus_interface = client_interface,
350
                               ignore_reply=True)
463.1.2 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),
482 by Teddy Hogeborn
* mandos: Tolerate restarting Avahi servers. Also Changed to new
353
                               dbus_interface = client_interface,
354
                               ignore_reply=True)
463.1.2 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),
482 by Teddy Hogeborn
* mandos: Tolerate restarting Avahi servers. Also Changed to new
357
                                  dbus_interface = client_interface,
358
                               ignore_reply=True)
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
359
        elif key == "R" or key == "_" or key == "ctrl k":
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
360
            self.server_proxy_object.RemoveClient(self.proxy
482 by Teddy Hogeborn
* mandos: Tolerate restarting Avahi servers. Also Changed to new
361
                                                  .object_path,
362
                                                  ignore_reply=True)
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
363
        elif key == "s":
482 by Teddy Hogeborn
* mandos: Tolerate restarting Avahi servers. Also Changed to new
364
            self.proxy.StartChecker(dbus_interface = client_interface,
365
                                    ignore_reply=True)
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
366
        elif key == "S":
482 by Teddy Hogeborn
* mandos: Tolerate restarting Avahi servers. Also Changed to new
367
            self.proxy.StopChecker(dbus_interface = client_interface,
368
                                   ignore_reply=True)
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
369
        elif key == "C":
482 by Teddy Hogeborn
* mandos: Tolerate restarting Avahi servers. Also Changed to new
370
            self.proxy.CheckedOK(dbus_interface = client_interface,
371
                                 ignore_reply=True)
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
372
        # xxx
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
373
#         elif key == "p" or key == "=":
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
374
#             self.proxy.pause()
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
375
#         elif key == "u" or key == ":":
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
376
#             self.proxy.unpause()
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
377
#         elif key == "RET":
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
378
#             self.open()
379
        else:
380
            return key
381
    
580 by Teddy Hogeborn
* mandos-monitor: Speedup: Use properties from D-Bus
382
    def property_changed(self, property=None, **kwargs):
404 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(
580 by Teddy Hogeborn
* mandos-monitor: Speedup: Use properties from D-Bus
388
            property=property, **kwargs)
404 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
405 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
    """
580 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)
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
400
        if ret in ("up", "down"):
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
401
            return
402
        return ret
403
404
404 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
    """
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
409
    def __init__(self, max_log_length=1000):
410
        DBusGMainLoop(set_as_default=True)
404 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((
463.1.2 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")),
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
432
                ))
433
        
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
434
        if urwid.supports_unicode():
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
435
            self.divider = "─" # \u2500
436
            #self.divider = "━" # \u2501
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
437
        else:
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
438
            #self.divider = "-" # \u002d
439
            self.divider = "_" # \u005f
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
440
        
404 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 = {}
405 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
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
459
        self.log_wrap = "any"
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
460
        
461
        self.rebuild()
463.1.2 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"))
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
466
        
467
        self.busname = domain + '.Mandos'
468
        self.main_loop = gobject.MainLoop()
469
    
409 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
470
    def client_not_found(self, fingerprint, address):
567 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))
409 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
474
    
405 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))
422 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),
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
482
                                       #header=urwid.Divider(),
483
                                       header=None,
422 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)))
405 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
    
409 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
491
    def log_message(self, message):
492
        timestamp = datetime.datetime.now().isoformat()
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
493
        self.log_message_raw(timestamp + ": " + message)
409 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
494
    
495
    def log_message_raw(self, markup):
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
496
        """Add a log message to the log buffer."""
497
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
498
        if (self.max_log_length
499
            and len(self.log) > self.max_log_length):
500
            del self.log[0:len(self.log)-self.max_log_length-1]
408 by Teddy Hogeborn
* debian/rules: Only set BROKEN_PIE if binutils is a specific range of
501
        self.logbox.set_focus(len(self.logbox.body.contents),
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
502
                              coming_from="above")
409 by Teddy Hogeborn
* mandos (MandosServer.handle_ipc): Better log message.
503
        self.refresh()
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
504
    
505
    def toggle_log_display(self):
506
        """Toggle visibility of the log buffer."""
507
        self.log_visible = not self.log_visible
508
        self.rebuild()
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
509
        #self.log_message("Log visibility changed to: "
430 by teddy at bsnet
* mandos-monitor.xml: New.
510
        #                 + unicode(self.log_visible))
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
511
    
512
    def change_log_display(self):
513
        """Change type of log display.
514
        Currently, this toggles wrapping of text lines."""
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
515
        if self.log_wrap == "clip":
516
            self.log_wrap = "any"
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
517
        else:
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
518
            self.log_wrap = "clip"
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
519
        for textwidget in self.log:
520
            textwidget.set_wrap_mode(self.log_wrap)
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
521
        #self.log_message("Wrap mode: " + self.log_wrap)
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
522
    
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
523
    def find_and_remove_client(self, path, name):
488 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Save match tag for
524
        """Find a client by its object path and remove it.
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
525
        
526
        This is connected to the ClientRemoved signal from the
527
        Mandos server object."""
528
        try:
529
            client = self.clients_dict[path]
530
        except KeyError:
531
            # not found?
567 by Teddy Hogeborn
* mandos-monitor: Use new string format method.
532
            self.log_message("Unknown client {0!r} ({1!r}) removed"
533
                             .format(name, path))
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
534
            return
488 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Save match tag for
535
        client.delete()
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
536
    
411 by Teddy Hogeborn
More consistent terminology: Clients are no longer "invalid" - they
537
    def add_new_client(self, path):
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
538
        client_proxy_object = self.bus.get_object(self.busname, path)
539
        self.add_client(MandosClientWidget(server_proxy_object
540
                                           =self.mandos_serv,
541
                                           proxy_object
542
                                           =client_proxy_object,
543
                                           update_hook
544
                                           =self.refresh,
545
                                           delete_hook
411 by Teddy Hogeborn
More consistent terminology: Clients are no longer "invalid" - they
546
                                           =self.remove_client,
547
                                           logger
548
                                           =self.log_message),
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
549
                        path=path)
550
    
551
    def add_client(self, client, path=None):
552
        self.clients.append(client)
553
        if path is None:
554
            path = client.proxy.object_path
555
        self.clients_dict[path] = client
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
556
        self.clients.sort(None, lambda c: c.properties["Name"])
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
557
        self.refresh()
558
    
559
    def remove_client(self, client, path=None):
560
        self.clients.remove(client)
561
        if path is None:
562
            path = client.proxy.object_path
563
        del self.clients_dict[path]
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
564
        if not self.clients_dict:
565
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
566
            # is completely emptied, we need to recreate it.
567
            self.clients = urwid.SimpleListWalker([])
568
            self.rebuild()
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
569
        self.refresh()
570
    
571
    def refresh(self):
572
        """Redraw the screen"""
573
        canvas = self.topwidget.render(self.size, focus=True)
574
        self.screen.draw_screen(self.size, canvas)
575
    
576
    def run(self):
577
        """Start the main loop and exit when it's done."""
537 by Björn Påhlsson
nicer stacktrace when mandos-monitor fail during startup
578
        self.bus = dbus.SystemBus()
579
        mandos_dbus_objc = self.bus.get_object(
580
            self.busname, "/", follow_name_owner_changes=True)
581
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
582
                                          dbus_interface
583
                                          = server_interface)
584
        try:
585
            mandos_clients = (self.mandos_serv
586
                              .GetAllClientsWithProperties())
587
        except dbus.exceptions.DBusException:
588
            mandos_clients = dbus.Dictionary()
589
        
590
        (self.mandos_serv
591
         .connect_to_signal("ClientRemoved",
592
                            self.find_and_remove_client,
593
                            dbus_interface=server_interface,
594
                            byte_arrays=True))
595
        (self.mandos_serv
596
         .connect_to_signal("ClientAdded",
597
                            self.add_new_client,
598
                            dbus_interface=server_interface,
599
                            byte_arrays=True))
600
        (self.mandos_serv
601
         .connect_to_signal("ClientNotFound",
602
                            self.client_not_found,
603
                            dbus_interface=server_interface,
604
                            byte_arrays=True))
605
        for path, client in mandos_clients.iteritems():
606
            client_proxy_object = self.bus.get_object(self.busname,
607
                                                      path)
608
            self.add_client(MandosClientWidget(server_proxy_object
609
                                               =self.mandos_serv,
610
                                               proxy_object
611
                                               =client_proxy_object,
612
                                               properties=client,
613
                                               update_hook
614
                                               =self.refresh,
615
                                               delete_hook
616
                                               =self.remove_client,
617
                                               logger
618
                                               =self.log_message),
619
                            path=path)
580 by Teddy Hogeborn
* mandos-monitor: Speedup: Use properties from D-Bus
620
        
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
621
        self.refresh()
622
        self._input_callback_tag = (gobject.io_add_watch
623
                                    (sys.stdin.fileno(),
624
                                     gobject.IO_IN,
625
                                     self.process_input))
626
        self.main_loop.run()
627
        # Main loop has finished, we should close everything now
628
        gobject.source_remove(self._input_callback_tag)
629
        self.screen.stop()
630
    
631
    def stop(self):
632
        self.main_loop.quit()
633
    
634
    def process_input(self, source, condition):
635
        keys = self.screen.get_input()
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
636
        translations = { "ctrl n": "down",      # Emacs
637
                         "ctrl p": "up",        # Emacs
638
                         "ctrl v": "page down", # Emacs
639
                         "meta v": "page up",   # Emacs
640
                         " ": "page down",      # less
641
                         "f": "page down",      # less
642
                         "b": "page up",        # less
643
                         "j": "down",           # vi
644
                         "k": "up",             # vi
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
645
                         }
646
        for key in keys:
647
            try:
648
                key = translations[key]
649
            except KeyError:    # :-)
650
                pass
651
            
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
652
            if key == "q" or key == "Q":
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
653
                self.stop()
654
                break
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
655
            elif key == "window resize":
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
656
                self.size = self.screen.get_cols_rows()
657
                self.refresh()
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
658
            elif key == "\f":  # Ctrl-L
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
659
                self.refresh()
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
660
            elif key == "l" or key == "D":
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
661
                self.toggle_log_display()
662
                self.refresh()
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
663
            elif key == "w" or key == "i":
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
664
                self.change_log_display()
665
                self.refresh()
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
666
            elif key == "?" or key == "f1" or key == "esc":
407 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
667
                if not self.log_visible:
668
                    self.log_visible = True
669
                    self.rebuild()
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
670
                self.log_message_raw(("bold",
671
                                      "  ".
672
                                      join(("q: Quit",
673
                                            "?: Help",
674
                                            "l: Log window toggle",
675
                                            "TAB: Switch window",
676
                                            "w: Wrap (log)"))))
677
                self.log_message_raw(("bold",
678
                                      "  "
679
                                      .join(("Clients:",
680
                                             "+: Enable",
681
                                             "-: Disable",
682
                                             "R: Remove",
683
                                             "s: Start new checker",
684
                                             "S: Stop checker",
685
                                             "C: Checker OK",
686
                                             "a: Approve",
687
                                             "d: Deny"))))
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
688
                self.refresh()
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
689
            elif key == "tab":
405 by Teddy Hogeborn
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
690
                if self.topwidget.get_focus() is self.logbox:
691
                    self.topwidget.set_focus(0)
692
                else:
693
                    self.topwidget.set_focus(self.logbox)
694
                self.refresh()
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
695
            #elif (key == "end" or key == "meta >" or key == "G"
696
            #      or key == ">"):
407 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
697
            #    pass            # xxx end-of-buffer
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
698
            #elif (key == "home" or key == "meta <" or key == "g"
699
            #      or key == "<"):
407 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
700
            #    pass            # xxx beginning-of-buffer
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
701
            #elif key == "ctrl e" or key == "$":
407 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
702
            #    pass            # xxx move-end-of-line
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
703
            #elif key == "ctrl a" or key == "^":
407 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
704
            #    pass            # xxx move-beginning-of-line
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
705
            #elif key == "ctrl b" or key == "meta (" or key == "h":
407 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
706
            #    pass            # xxx left
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
707
            #elif key == "ctrl f" or key == "meta )" or key == "l":
407 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
708
            #    pass            # xxx right
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
709
            #elif key == "a":
407 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
710
            #    pass            # scroll up log
463.1.2 by teddy at bsnet
* mandos-monitor: Use unicode string literals. Update __future__
711
            #elif key == "z":
407 by Teddy Hogeborn
* mandos-monitor (MandosClientWidget): Change "StopChecker" key to "S"
712
            #    pass            # scroll down log
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
713
            elif self.topwidget.selectable():
714
                self.topwidget.keypress(self.size, key)
715
                self.refresh()
716
        return True
717
718
ui = UserInterface()
719
try:
720
    ui.run()
24.1.159 by Björn Påhlsson
added approval to mandos-ctl
721
except KeyboardInterrupt:
722
    ui.screen.stop()
411 by Teddy Hogeborn
More consistent terminology: Clients are no longer "invalid" - they
723
except Exception, e:
724
    ui.log_message(unicode(e))
404 by Teddy Hogeborn
* mandos-monitor: New prototype version of interactive server
725
    ui.screen.stop()
726
    raise