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- Committer: Teddy Hogeborn
- Date: 2014-07-25 23:44:04 UTC
- mfrom: (723.1.7 python27)
- Revision ID: teddy@recompile.se-20140725234404-m6c733af4i3zs0la
Merge from Python 2.7 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 © 2009-2016 Teddy Hogeborn
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# Copyright © 2009-2016 Björn Påhlsson
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#
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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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# 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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from gi.repository import GLib
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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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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 = "1.7.13"
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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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version = "1.6.7"
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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("PropertiesChanged",
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self.properties_changed,
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dbus.PROPERTIES_IFACE,
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self.proxy.connect_to_signal("PropertyChanged",
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self._property_changed,
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client_interface,
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byte_arrays=True))
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if properties is None:
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self.properties.update(self.proxy.GetAll(
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client_interface,
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dbus_interface=dbus.PROPERTIES_IFACE))
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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 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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def _property_changed(self, property, value):
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"""Helper which takes positional arguments"""
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return self.property_changed(property=property, value=value)
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def property_changed(self, property=None, value=None):
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"""This is called whenever we get a PropertyChanged signal
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It updates the changed property in the "properties" dict.
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"""
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# Update properties dict with new value
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if interface == client_interface:
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self.properties.update(properties)
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self.properties[property] = value
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def delete(self):
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self.property_changed_match.remove()
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class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
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"""A Mandos Client which is visible on the screen.
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"""
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def __init__(self, server_proxy_object=None, update_hook=None,
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delete_hook=None, logger=None, **kwargs):
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# Called on update
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self.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 = (GLib.timeout_add
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self._update_timer_callback_tag = (gobject.timeout_add
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(1000,
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self.update_timer))
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elif not (flag or self._update_timer_callback_tag is None):
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GLib.source_remove(self._update_timer_callback_tag)
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gobject.source_remove(self._update_timer_callback_tag)
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self._update_timer_callback_tag = None
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def checker_completed(self, exitstatus, condition, command):
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if exitstatus == 0:
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self.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(
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milliseconds=self.properties["ApprovalDelay"])
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timeout = datetime.timedelta(milliseconds
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= self.properties
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["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):
310
"""called by GLib. Will indefinitely loop until
311
GLib.source_remove() on tag is called
312
"""
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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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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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GLib.source_remove(self._update_timer_callback_tag)
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gobject.source_remove(self._update_timer_callback_tag)
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self._update_timer_callback_tag = None
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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.Set(client_interface, "Enabled",
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dbus.Boolean(True), ignore_reply=True,
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dbus_interface=dbus.PROPERTIES_IFACE)
344
self.proxy.Enable(dbus_interface = client_interface,
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ignore_reply=True)
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elif key == "-":
341
self.proxy.Set(client_interface, "Enabled", False,
342
ignore_reply=True,
343
dbus_interface=dbus.PROPERTIES_IFACE)
347
self.proxy.Disable(dbus_interface = client_interface,
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ignore_reply=True)
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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,
351
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.Set(client_interface, "CheckerRunning",
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dbus.Boolean(True), ignore_reply=True,
359
dbus_interface=dbus.PROPERTIES_IFACE)
362
self.proxy.StartChecker(dbus_interface = client_interface,
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ignore_reply=True)
360
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elif key == "S":
361
self.proxy.Set(client_interface, "CheckerRunning",
362
dbus.Boolean(False), ignore_reply=True,
363
dbus_interface=dbus.PROPERTIES_IFACE)
365
self.proxy.StopChecker(dbus_interface = client_interface,
366
ignore_reply=True)
364
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elif key == "C":
365
self.proxy.CheckedOK(dbus_interface=client_interface,
368
self.proxy.CheckedOK(dbus_interface = client_interface,
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ignore_reply=True)
367
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# xxx
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# elif key == "p" or key == "=":
373
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# self.open()
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else:
375
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return key
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def properties_changed(self, interface, properties, invalidated):
378
"""Call self.update() if any properties changed.
379
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def property_changed(self, property=None, **kwargs):
381
"""Call self.update() if old value is not new value.
379
382
This overrides the method from MandosClientPropertyCache"""
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):
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:
386
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self.update()
387
389
388
390
392
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use them as an excuse to shift focus away from this widget.
393
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"""
394
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def keypress(self, *args, **kwargs):
395
ret = (super(ConstrainedListBox, self)
396
.keypress(*args, **kwargs))
397
ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
397
398
if ret in ("up", "down"):
398
399
return
399
400
return ret
405
406
"""
406
407
def __init__(self, max_log_length=1000, log_level=1):
407
408
DBusGMainLoop(set_as_default=True)
408
409
409
410
self.screen = urwid.curses_display.Screen()
410
411
411
412
self.screen.register_palette((
412
413
("normal",
413
414
"default", "default", None),
418
419
("standout",
419
420
"standout", "default", "standout"),
420
421
("bold-underline-blink",
421
"bold,underline,blink", "default",
422
"bold,underline,blink"),
422
"bold,underline,blink", "default", "bold,underline,blink"),
423
423
("bold-standout",
424
424
"bold,standout", "default", "bold,standout"),
425
425
("underline-blink-standout",
429
429
"bold,underline,blink,standout", "default",
430
430
"bold,underline,blink,standout"),
431
431
))
432
432
433
433
if urwid.supports_unicode():
434
self.divider = "─" # \u2500
434
self.divider = "─" # \u2500
435
#self.divider = "━" # \u2501
435
436
else:
436
self.divider = "_" # \u005f
437
437
#self.divider = "-" # \u002d
438
self.divider = "_" # \u005f
439
438
440
self.screen.start()
439
441
440
442
self.size = self.screen.get_cols_rows()
441
443
442
444
self.clients = urwid.SimpleListWalker([])
443
445
self.clients_dict = {}
444
446
445
447
# We will add Text widgets to this list
446
448
self.log = []
447
449
self.max_log_length = max_log_length
448
450
449
451
self.log_level = log_level
450
452
451
453
# We keep a reference to the log widget so we can remove it
452
454
# from the ListWalker without it getting destroyed
453
455
self.logbox = ConstrainedListBox(self.log)
454
456
455
457
# This keeps track of whether self.uilist currently has
456
458
# self.logbox in it or not
457
459
self.log_visible = True
458
460
self.log_wrap = "any"
459
461
460
462
self.rebuild()
461
463
self.log_message_raw(("bold",
462
464
"Mandos Monitor version " + version))
463
465
self.log_message_raw(("bold",
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466
"q: Quit ?: Help"))
465
467
466
468
self.busname = domain + '.Mandos'
467
self.main_loop = GLib.MainLoop()
468
469
self.main_loop = gobject.MainLoop()
470
469
471
def client_not_found(self, fingerprint, address):
470
472
self.log_message("Client with address {} and fingerprint {}"
471
473
" could not be found"
472
474
.format(address, fingerprint))
473
475
474
476
def rebuild(self):
475
477
"""This rebuilds the User Interface.
476
478
Call this when the widget layout needs to change"""
477
479
self.uilist = []
478
# self.uilist.append(urwid.ListBox(self.clients))
480
#self.uilist.append(urwid.ListBox(self.clients))
479
481
self.uilist.append(urwid.Frame(ConstrainedListBox(self.
480
482
clients),
481
# header=urwid.Divider(),
483
#header=urwid.Divider(),
482
484
header=None,
483
footer=urwid.Divider(
484
div_char=self.divider)))
485
footer=
486
urwid.Divider(div_char=
487
self.divider)))
485
488
if self.log_visible:
486
489
self.uilist.append(self.logbox)
487
490
self.topwidget = urwid.Pile(self.uilist)
488
491
489
492
def log_message(self, message, level=1):
490
493
"""Log message formatted with timestamp"""
491
494
if level < self.log_level:
493
496
timestamp = datetime.datetime.now().isoformat()
494
497
self.log_message_raw("{}: {}".format(timestamp, message),
495
498
level=level)
496
499
497
500
def log_message_raw(self, markup, level=1):
498
501
"""Add a log message to the log buffer."""
499
502
if level < self.log_level:
500
503
return
501
504
self.log.append(urwid.Text(markup, wrap=self.log_wrap))
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]
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]
505
508
self.logbox.set_focus(len(self.logbox.body.contents),
506
509
coming_from="above")
507
510
self.refresh()
508
511
509
512
def toggle_log_display(self):
510
513
"""Toggle visibility of the log buffer."""
511
514
self.log_visible = not self.log_visible
512
515
self.rebuild()
513
516
self.log_message("Log visibility changed to: {}"
514
517
.format(self.log_visible), level=0)
515
518
516
519
def change_log_display(self):
517
520
"""Change type of log display.
518
521
Currently, this toggles wrapping of text lines."""
524
527
textwidget.set_wrap_mode(self.log_wrap)
525
528
self.log_message("Wrap mode: {}".format(self.log_wrap),
526
529
level=0)
527
528
def find_and_remove_client(self, path, interfaces):
530
531
def find_and_remove_client(self, path, name):
529
532
"""Find a client by its object path and remove it.
530
531
This is connected to the InterfacesRemoved signal from the
533
534
This is connected to the ClientRemoved signal from the
532
535
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} removed"
541
.format(path))
540
self.log_message("Unknown client {!r} ({!r}) removed"
541
.format(name, path))
542
542
return
543
543
client.delete()
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
544
545
def add_new_client(self, path):
554
546
client_proxy_object = self.bus.get_object(self.busname, path)
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])),
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),
562
557
path=path)
563
558
564
559
def add_client(self, client, path=None):
565
560
self.clients.append(client)
566
561
if path is None:
568
563
self.clients_dict[path] = client
569
564
self.clients.sort(key=lambda c: c.properties["Name"])
570
565
self.refresh()
571
566
572
567
def remove_client(self, client, path=None):
573
568
self.clients.remove(client)
574
569
if path is None:
575
570
path = client.proxy.object_path
576
571
del self.clients_dict[path]
577
572
self.refresh()
578
573
579
574
def refresh(self):
580
575
"""Redraw the screen"""
581
576
canvas = self.topwidget.render(self.size, focus=True)
582
577
self.screen.draw_screen(self.size, canvas)
583
578
584
579
def run(self):
585
580
"""Start the main loop and exit when it's done."""
586
581
self.bus = dbus.SystemBus()
587
582
mandos_dbus_objc = self.bus.get_object(
588
583
self.busname, "/", follow_name_owner_changes=True)
589
self.mandos_serv = dbus.Interface(
590
mandos_dbus_objc, dbus_interface=server_interface)
584
self.mandos_serv = dbus.Interface(mandos_dbus_objc,
585
dbus_interface
586
= server_interface)
591
587
try:
592
588
mandos_clients = (self.mandos_serv
593
589
.GetAllClientsWithProperties())
594
590
if not mandos_clients:
595
self.log_message_raw(("bold",
596
"Note: Server has no clients."))
591
self.log_message_raw(("bold", "Note: Server has no clients."))
597
592
except dbus.exceptions.DBusException:
598
self.log_message_raw(("bold",
599
"Note: No Mandos server running."))
593
self.log_message_raw(("bold", "Note: No Mandos server running."))
600
594
mandos_clients = dbus.Dictionary()
601
595
602
596
(self.mandos_serv
603
.connect_to_signal("InterfacesRemoved",
597
.connect_to_signal("ClientRemoved",
604
598
self.find_and_remove_client,
605
dbus_interface=dbus.OBJECT_MANAGER_IFACE,
599
dbus_interface=server_interface,
606
600
byte_arrays=True))
607
601
(self.mandos_serv
608
.connect_to_signal("InterfacesAdded",
602
.connect_to_signal("ClientAdded",
609
603
self.add_new_client,
610
dbus_interface=dbus.OBJECT_MANAGER_IFACE,
604
dbus_interface=server_interface,
611
605
byte_arrays=True))
612
606
(self.mandos_serv
613
607
.connect_to_signal("ClientNotFound",
617
611
for path, client in mandos_clients.items():
618
612
client_proxy_object = self.bus.get_object(self.busname,
619
613
path)
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),
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),
627
625
path=path)
628
626
629
627
self.refresh()
630
self._input_callback_tag = (GLib.io_add_watch
628
self._input_callback_tag = (gobject.io_add_watch
631
629
(sys.stdin.fileno(),
632
GLib.IO_IN,
630
gobject.IO_IN,
633
631
self.process_input))
634
632
self.main_loop.run()
635
633
# Main loop has finished, we should close everything now
636
GLib.source_remove(self._input_callback_tag)
634
gobject.source_remove(self._input_callback_tag)
637
635
self.screen.stop()
638
636
639
637
def stop(self):
640
638
self.main_loop.quit()
641
639
642
640
def process_input(self, source, condition):
643
641
keys = self.screen.get_input()
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
}
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
}
654
652
for key in keys:
655
653
try:
656
654
key = translations[key]
657
655
except KeyError: # :-)
658
656
pass
659
657
660
658
if key == "q" or key == "Q":
661
659
self.stop()
662
660
break
710
708
else:
711
709
self.log_level = 0
712
710
self.log_message("Verbose mode: On")
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 == "$":
720
# pass # xxx move-end-of-line
721
# elif key == "ctrl a" or key == "^":
722
# pass # xxx move-beginning-of-line
723
# elif key == "ctrl b" or key == "meta (" or key == "h":
724
# pass # xxx left
725
# elif key == "ctrl f" or key == "meta )" or key == "l":
726
# pass # xxx right
727
# elif key == "a":
728
# pass # scroll up log
729
# elif key == "z":
730
# pass # scroll down log
711
#elif (key == "end" or key == "meta >" or key == "G"
712
# or key == ">"):
713
# pass # xxx end-of-buffer
714
#elif (key == "home" or key == "meta <" or key == "g"
715
# or key == "<"):
716
# pass # xxx beginning-of-buffer
717
#elif key == "ctrl e" or key == "$":
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
731
729
elif self.topwidget.selectable():
732
730
self.topwidget.keypress(self.size, key)
733
731
self.refresh()
734
732
return True
735
733
736
737
734
ui = UserInterface()
738
735
try:
739
736
ui.run()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0