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- Committer: Teddy Hogeborn
- Date: 2017-02-23 21:14:58 UTC
- mfrom: (237.4.90 release)
- Revision ID: teddy@recompile.se-20170223211458-2rv7ec5bxmk4ts81
Merge from release branch
added
removed
mandos-monitor
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#!/usr/bin/python
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# -*- mode: python; coding: utf-8 -*-
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#
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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 © 2009-2014 Teddy Hogeborn
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# Copyright © 2009-2014 Björn Påhlsson
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#
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#
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# Copyright © 2009-2017 Teddy Hogeborn
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# Copyright © 2009-2017 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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# 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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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see
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# <http://www.gnu.org/licenses/>.
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#
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#
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# Contact the authors at <mandos@recompile.se>.
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#
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#
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from __future__ import (division, absolute_import, print_function,
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unicode_literals)
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import urwid
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from dbus.mainloop.glib import DBusGMainLoop
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try:
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import gobject
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except ImportError:
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from gi.repository import GObject as gobject
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from gi.repository import GLib
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import dbus
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import locale
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import logging
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if sys.version_info.major == 2:
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str = unicode
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locale.setlocale(locale.LC_ALL, '')
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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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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 = "1.6.8"
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version = "1.7.15"
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try:
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dbus.OBJECT_MANAGER_IFACE
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except AttributeError:
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dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
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def isoformat_to_datetime(iso):
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"Parse an ISO 8601 date string to a datetime.datetime()"
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int(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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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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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.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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self.proxy.connect_to_signal("PropertiesChanged",
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self.properties_changed,
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dbus.PROPERTIES_IFACE,
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byte_arrays=True))
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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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self.properties.update(self.proxy.GetAll(
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client_interface,
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dbus_interface=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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def properties_changed(self, interface, properties, invalidated):
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"""This is called whenever we get a PropertiesChanged signal
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It updates the changed properties in the "properties" dict.
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"""
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# Update properties dict with new value
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self.properties[property] = value
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if interface == client_interface:
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self.properties.update(properties)
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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.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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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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byte_arrays=True))
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self.logger('Created client {}'
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.format(self.properties["Name"]), level=0)
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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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self._update_timer_callback_tag = (GLib.timeout_add
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(1000,
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self.update_timer))
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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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GLib.source_remove(self._update_timer_callback_tag)
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self._update_timer_callback_tag = None
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def checker_completed(self, exitstatus, condition, command):
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if exitstatus == 0:
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self.logger('Checker for client {} (command "{}")'
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' killed by signal {}'
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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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self.logger('Checker for client {} (command "{}") dumped'
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' core'.format(self.properties["Name"],
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command))
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else:
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self.logger('Checker for client {} completed'
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' mysteriously'
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.format(self.properties["Name"]))
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self.update()
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def checker_started(self, command):
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"""Server signals that a checker started."""
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self.logger('Client {} started checker "{}"'
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.format(self.properties["Name"],
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command), level=0)
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def got_secret(self):
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self.logger('Client {} received its secret'
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.format(self.properties["Name"]))
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def need_approval(self, timeout, default):
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if not default:
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message = 'Client {} needs approval within {} seconds'
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message = 'Client {} will get its secret in {} seconds'
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self.logger(message.format(self.properties["Name"],
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timeout/1000))
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def rejected(self, reason):
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self.logger('Client {} was rejected; reason: {}'
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.format(self.properties["Name"], reason))
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def selectable(self):
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"""Make this a "selectable" widget.
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This overrides the method from urwid.FlowWidget."""
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return True
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def rows(self, maxcolrow, focus=False):
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"""How many rows this widget will occupy might depend on
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whether we have focus or not.
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This overrides the method from urwid.FlowWidget"""
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return self.current_widget(focus).rows(maxcolrow, focus=focus)
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def current_widget(self, focus=False):
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if focus or self.opened:
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return self._focus_widget
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return self._widget
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def update(self):
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"Called when what is visible on the screen should be updated."
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# How to add standout mode to a style
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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":
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"bold-underline-blink-standout",
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}
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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":
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"bold-underline-blink-standout",
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}
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# Rebuild focus and non-focus widgets using current properties
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# Base part of a client. Name!
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base = '{name}: '.format(name=self.properties["Name"])
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if not self.properties["Enabled"]:
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message = "DISABLED"
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self.using_timer(False)
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elif self.properties["ApprovalPending"]:
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timeout = datetime.timedelta(milliseconds
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= self.properties
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["ApprovalDelay"])
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timeout = datetime.timedelta(
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milliseconds=self.properties["ApprovalDelay"])
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last_approval_request = isoformat_to_datetime(
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self.properties["LastApprovalRequest"])
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if last_approval_request is not None:
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message = "enabled"
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self.using_timer(False)
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self._text = "{}{}".format(base, message)
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if not urwid.supports_unicode():
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self._text = self._text.encode("ascii", "replace")
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textlist = [("normal", self._text)]
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# Run update hook, if any
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if self.update_hook is not None:
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self.update_hook()
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def update_timer(self):
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"""called by gobject. Will indefinitely loop until
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gobject.source_remove() on tag is called"""
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"""called by GLib. Will indefinitely loop until
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GLib.source_remove() on tag is called
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"""
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self.update()
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return True # Keep calling this
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def delete(self, **kwargs):
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if self._update_timer_callback_tag is not None:
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gobject.source_remove(self._update_timer_callback_tag)
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GLib.source_remove(self._update_timer_callback_tag)
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self._update_timer_callback_tag = None
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for match in self.match_objects:
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match.remove()
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if self.delete_hook is not None:
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self.delete_hook(self)
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return super(MandosClientWidget, self).delete(**kwargs)
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def render(self, maxcolrow, focus=False):
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"""Render differently if we have focus.
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This overrides the method from urwid.FlowWidget"""
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return self.current_widget(focus).render(maxcolrow,
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focus=focus)
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def keypress(self, maxcolrow, key):
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"""Handle keys.
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This overrides the method from urwid.FlowWidget"""
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if key == "+":
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self.proxy.Enable(dbus_interface = client_interface,
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ignore_reply=True)
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self.proxy.Set(client_interface, "Enabled",
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dbus.Boolean(True), ignore_reply=True,
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dbus_interface=dbus.PROPERTIES_IFACE)
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elif key == "-":
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self.proxy.Disable(dbus_interface = client_interface,
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ignore_reply=True)
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self.proxy.Set(client_interface, "Enabled", False,
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ignore_reply=True,
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dbus_interface=dbus.PROPERTIES_IFACE)
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elif key == "a":
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self.proxy.Approve(dbus.Boolean(True, variant_level=1),
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dbus_interface = client_interface,
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dbus_interface=client_interface,
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ignore_reply=True)
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elif key == "d":
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self.proxy.Approve(dbus.Boolean(False, variant_level=1),
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dbus_interface = client_interface,
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dbus_interface=client_interface,
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ignore_reply=True)
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elif key == "R" or key == "_" or key == "ctrl k":
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self.server_proxy_object.RemoveClient(self.proxy
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.object_path,
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ignore_reply=True)
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elif key == "s":
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self.proxy.StartChecker(dbus_interface = client_interface,
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ignore_reply=True)
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self.proxy.Set(client_interface, "CheckerRunning",
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dbus.Boolean(True), ignore_reply=True,
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dbus_interface=dbus.PROPERTIES_IFACE)
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elif key == "S":
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self.proxy.StopChecker(dbus_interface = client_interface,
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ignore_reply=True)
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self.proxy.Set(client_interface, "CheckerRunning",
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dbus.Boolean(False), ignore_reply=True,
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dbus_interface=dbus.PROPERTIES_IFACE)
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elif key == "C":
368
self.proxy.CheckedOK(dbus_interface = client_interface,
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self.proxy.CheckedOK(dbus_interface=client_interface,
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ignore_reply=True)
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# xxx
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# elif key == "p" or key == "=":
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# self.open()
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else:
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return key
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def property_changed(self, property=None, **kwargs):
381
"""Call self.update() if old value is not new value.
376
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def properties_changed(self, interface, properties, invalidated):
378
"""Call self.update() if any properties changed.
382
379
This overrides the method from MandosClientPropertyCache"""
383
property_name = str(property)
384
old_value = self.properties.get(property_name)
385
super(MandosClientWidget, self).property_changed(
386
property=property, **kwargs)
387
if self.properties.get(property_name) != old_value:
380
old_values = {key: self.properties.get(key)
381
for key in properties.keys()}
382
super(MandosClientWidget, self).properties_changed(
383
interface, properties, invalidated)
384
if any(old_values[key] != self.properties.get(key)
385
for key in old_values):
388
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self.update()
389
387
390
388
394
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use them as an excuse to shift focus away from this widget.
395
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"""
396
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def keypress(self, *args, **kwargs):
397
ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
395
ret = (super(ConstrainedListBox, self)
396
.keypress(*args, **kwargs))
398
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if ret in ("up", "down"):
399
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return
400
399
return ret
406
405
"""
407
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def __init__(self, max_log_length=1000, log_level=1):
408
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DBusGMainLoop(set_as_default=True)
409
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410
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self.screen = urwid.curses_display.Screen()
411
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412
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self.screen.register_palette((
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("normal",
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"default", "default", None),
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("standout",
420
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"standout", "default", "standout"),
421
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("bold-underline-blink",
422
"bold,underline,blink", "default", "bold,underline,blink"),
421
"bold,underline,blink", "default",
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"bold,underline,blink"),
423
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("bold-standout",
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"bold,standout", "default", "bold,standout"),
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("underline-blink-standout",
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429
"bold,underline,blink,standout", "default",
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430
"bold,underline,blink,standout"),
431
431
))
432
432
433
433
if urwid.supports_unicode():
434
self.divider = "─" # \u2500
435
#self.divider = "━" # \u2501
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self.divider = "─" # \u2500
436
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else:
437
#self.divider = "-" # \u002d
438
self.divider = "_" # \u005f
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436
self.divider = "_" # \u005f
437
440
438
self.screen.start()
441
439
442
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self.size = self.screen.get_cols_rows()
443
441
444
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self.clients = urwid.SimpleListWalker([])
445
443
self.clients_dict = {}
446
444
447
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# We will add Text widgets to this list
448
446
self.log = []
449
447
self.max_log_length = max_log_length
450
448
451
449
self.log_level = log_level
452
450
453
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# We keep a reference to the log widget so we can remove it
454
452
# from the ListWalker without it getting destroyed
455
453
self.logbox = ConstrainedListBox(self.log)
456
454
457
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# This keeps track of whether self.uilist currently has
458
456
# self.logbox in it or not
459
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self.log_visible = True
460
458
self.log_wrap = "any"
461
459
462
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self.rebuild()
463
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self.log_message_raw(("bold",
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462
"Mandos Monitor version " + version))
465
463
self.log_message_raw(("bold",
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464
"q: Quit ?: Help"))
467
465
468
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self.busname = domain + '.Mandos'
469
self.main_loop = gobject.MainLoop()
470
467
self.main_loop = GLib.MainLoop()
468
471
469
def client_not_found(self, fingerprint, address):
472
470
self.log_message("Client with address {} and fingerprint {}"
473
471
" could not be found"
474
472
.format(address, fingerprint))
475
473
476
474
def rebuild(self):
477
475
"""This rebuilds the User Interface.
478
476
Call this when the widget layout needs to change"""
479
477
self.uilist = []
480
#self.uilist.append(urwid.ListBox(self.clients))
478
# self.uilist.append(urwid.ListBox(self.clients))
481
479
self.uilist.append(urwid.Frame(ConstrainedListBox(self.
482
480
clients),
483
#header=urwid.Divider(),
481
# header=urwid.Divider(),
484
482
header=None,
485
footer=
486
urwid.Divider(div_char=
487
self.divider)))
483
footer=urwid.Divider(
484
div_char=self.divider)))
488
485
if self.log_visible:
489
486
self.uilist.append(self.logbox)
490
487
self.topwidget = urwid.Pile(self.uilist)
491
488
492
489
def log_message(self, message, level=1):
493
490
"""Log message formatted with timestamp"""
494
491
if level < self.log_level:
496
493
timestamp = datetime.datetime.now().isoformat()
497
494
self.log_message_raw("{}: {}".format(timestamp, message),
498
495
level=level)
499
496
500
497
def log_message_raw(self, markup, level=1):
501
498
"""Add a log message to the log buffer."""
502
499
if level < self.log_level:
503
500
return
504
501
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
505
if (self.max_log_length
506
and len(self.log) > self.max_log_length):
507
del self.log[0:len(self.log)-self.max_log_length-1]
502
if self.max_log_length:
503
if len(self.log) > self.max_log_length:
504
del self.log[0:len(self.log)-self.max_log_length-1]
508
505
self.logbox.set_focus(len(self.logbox.body.contents),
509
506
coming_from="above")
510
507
self.refresh()
511
508
512
509
def toggle_log_display(self):
513
510
"""Toggle visibility of the log buffer."""
514
511
self.log_visible = not self.log_visible
515
512
self.rebuild()
516
513
self.log_message("Log visibility changed to: {}"
517
514
.format(self.log_visible), level=0)
518
515
519
516
def change_log_display(self):
520
517
"""Change type of log display.
521
518
Currently, this toggles wrapping of text lines."""
527
524
textwidget.set_wrap_mode(self.log_wrap)
528
525
self.log_message("Wrap mode: {}".format(self.log_wrap),
529
526
level=0)
530
531
def find_and_remove_client(self, path, name):
527
528
def find_and_remove_client(self, path, interfaces):
532
529
"""Find a client by its object path and remove it.
533
534
This is connected to the ClientRemoved signal from the
530
531
This is connected to the InterfacesRemoved signal from the
535
532
Mandos server object."""
533
if client_interface not in interfaces:
534
# Not a Mandos client object; ignore
535
return
536
536
try:
537
537
client = self.clients_dict[path]
538
538
except KeyError:
539
539
# not found?
540
self.log_message("Unknown client {!r} ({!r}) removed"
541
.format(name, path))
540
self.log_message("Unknown client {!r} removed"
541
.format(path))
542
542
return
543
543
client.delete()
544
545
def add_new_client(self, path):
544
545
def add_new_client(self, path, ifs_and_props):
546
"""Find a client by its object path and remove it.
547
548
This is connected to the InterfacesAdded signal from the
549
Mandos server object.
550
"""
551
if client_interface not in ifs_and_props:
552
# Not a Mandos client object; ignore
553
return
546
554
client_proxy_object = self.bus.get_object(self.busname, path)
547
self.add_client(MandosClientWidget(server_proxy_object
548
=self.mandos_serv,
549
proxy_object
550
=client_proxy_object,
551
update_hook
552
=self.refresh,
553
delete_hook
554
=self.remove_client,
555
logger
556
=self.log_message),
555
self.add_client(MandosClientWidget(
556
server_proxy_object=self.mandos_serv,
557
proxy_object=client_proxy_object,
558
update_hook=self.refresh,
559
delete_hook=self.remove_client,
560
logger=self.log_message,
561
properties=dict(ifs_and_props[client_interface])),
557
562
path=path)
558
563
559
564
def add_client(self, client, path=None):
560
565
self.clients.append(client)
561
566
if path is None:
563
568
self.clients_dict[path] = client
564
569
self.clients.sort(key=lambda c: c.properties["Name"])
565
570
self.refresh()
566
571
567
572
def remove_client(self, client, path=None):
568
573
self.clients.remove(client)
569
574
if path is None:
570
575
path = client.proxy.object_path
571
576
del self.clients_dict[path]
572
577
self.refresh()
573
578
574
579
def refresh(self):
575
580
"""Redraw the screen"""
576
581
canvas = self.topwidget.render(self.size, focus=True)
577
582
self.screen.draw_screen(self.size, canvas)
578
583
579
584
def run(self):
580
585
"""Start the main loop and exit when it's done."""
581
586
self.bus = dbus.SystemBus()
582
587
mandos_dbus_objc = self.bus.get_object(
583
588
self.busname, "/", follow_name_owner_changes=True)
584
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
585
dbus_interface
586
= server_interface)
589
self.mandos_serv = dbus.Interface(
590
mandos_dbus_objc, dbus_interface=server_interface)
587
591
try:
588
592
mandos_clients = (self.mandos_serv
589
593
.GetAllClientsWithProperties())
590
594
if not mandos_clients:
591
self.log_message_raw(("bold", "Note: Server has no clients."))
595
self.log_message_raw(("bold",
596
"Note: Server has no clients."))
592
597
except dbus.exceptions.DBusException:
593
self.log_message_raw(("bold", "Note: No Mandos server running."))
598
self.log_message_raw(("bold",
599
"Note: No Mandos server running."))
594
600
mandos_clients = dbus.Dictionary()
595
601
596
602
(self.mandos_serv
597
.connect_to_signal("ClientRemoved",
603
.connect_to_signal("InterfacesRemoved",
598
604
self.find_and_remove_client,
599
dbus_interface=server_interface,
605
dbus_interface=dbus.OBJECT_MANAGER_IFACE,
600
606
byte_arrays=True))
601
607
(self.mandos_serv
602
.connect_to_signal("ClientAdded",
608
.connect_to_signal("InterfacesAdded",
603
609
self.add_new_client,
604
dbus_interface=server_interface,
610
dbus_interface=dbus.OBJECT_MANAGER_IFACE,
605
611
byte_arrays=True))
606
612
(self.mandos_serv
607
613
.connect_to_signal("ClientNotFound",
611
617
for path, client in mandos_clients.items():
612
618
client_proxy_object = self.bus.get_object(self.busname,
613
619
path)
614
self.add_client(MandosClientWidget(server_proxy_object
615
=self.mandos_serv,
616
proxy_object
617
=client_proxy_object,
618
properties=client,
619
update_hook
620
=self.refresh,
621
delete_hook
622
=self.remove_client,
623
logger
624
=self.log_message),
620
self.add_client(MandosClientWidget(
621
server_proxy_object=self.mandos_serv,
622
proxy_object=client_proxy_object,
623
properties=client,
624
update_hook=self.refresh,
625
delete_hook=self.remove_client,
626
logger=self.log_message),
625
627
path=path)
626
628
627
629
self.refresh()
628
self._input_callback_tag = (gobject.io_add_watch
630
self._input_callback_tag = (GLib.io_add_watch
629
631
(sys.stdin.fileno(),
630
gobject.IO_IN,
632
GLib.IO_IN,
631
633
self.process_input))
632
634
self.main_loop.run()
633
635
# Main loop has finished, we should close everything now
634
gobject.source_remove(self._input_callback_tag)
636
GLib.source_remove(self._input_callback_tag)
635
637
self.screen.stop()
636
638
637
639
def stop(self):
638
640
self.main_loop.quit()
639
641
640
642
def process_input(self, source, condition):
641
643
keys = self.screen.get_input()
642
translations = { "ctrl n": "down", # Emacs
643
"ctrl p": "up", # Emacs
644
"ctrl v": "page down", # Emacs
645
"meta v": "page up", # Emacs
646
" ": "page down", # less
647
"f": "page down", # less
648
"b": "page up", # less
649
"j": "down", # vi
650
"k": "up", # vi
651
}
644
translations = {"ctrl n": "down", # Emacs
645
"ctrl p": "up", # Emacs
646
"ctrl v": "page down", # Emacs
647
"meta v": "page up", # Emacs
648
" ": "page down", # less
649
"f": "page down", # less
650
"b": "page up", # less
651
"j": "down", # vi
652
"k": "up", # vi
653
}
652
654
for key in keys:
653
655
try:
654
656
key = translations[key]
655
657
except KeyError: # :-)
656
658
pass
657
659
658
660
if key == "q" or key == "Q":
659
661
self.stop()
660
662
break
708
710
else:
709
711
self.log_level = 0
710
712
self.log_message("Verbose mode: On")
711
#elif (key == "end" or key == "meta >" or key == "G"
712
# or key == ">"):
713
# pass # xxx end-of-buffer
714
#elif (key == "home" or key == "meta <" or key == "g"
715
# or key == "<"):
716
# pass # xxx beginning-of-buffer
717
#elif key == "ctrl e" or key == "$":
718
# pass # xxx move-end-of-line
719
#elif key == "ctrl a" or key == "^":
720
# pass # xxx move-beginning-of-line
721
#elif key == "ctrl b" or key == "meta (" or key == "h":
722
# pass # xxx left
723
#elif key == "ctrl f" or key == "meta )" or key == "l":
724
# pass # xxx right
725
#elif key == "a":
726
# pass # scroll up log
727
#elif key == "z":
728
# pass # scroll down log
713
# elif (key == "end" or key == "meta >" or key == "G"
714
# or key == ">"):
715
# pass # xxx end-of-buffer
716
# elif (key == "home" or key == "meta <" or key == "g"
717
# or key == "<"):
718
# pass # xxx beginning-of-buffer
719
# elif key == "ctrl e" or key == "$":
720
# pass # xxx move-end-of-line
721
# elif key == "ctrl a" or key == "^":
722
# pass # xxx move-beginning-of-line
723
# elif key == "ctrl b" or key == "meta (" or key == "h":
724
# pass # xxx left
725
# elif key == "ctrl f" or key == "meta )" or key == "l":
726
# pass # xxx right
727
# elif key == "a":
728
# pass # scroll up log
729
# elif key == "z":
730
# pass # scroll down log
729
731
elif self.topwidget.selectable():
730
732
self.topwidget.keypress(self.size, key)
731
733
self.refresh()
732
734
return True
733
735
736
734
737
ui = UserInterface()
735
738
try:
736
739
ui.run()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0