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#!/usr/bin/python3 -bbI
 
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# -*- mode: python; coding: utf-8 -*-
 
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# Mandos Monitor - Control and monitor the Mandos server
 
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# Copyright © 2009-2019 Teddy Hogeborn
 
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# Copyright © 2009-2019 Björn Påhlsson
 
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# This file is part of Mandos.
 
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# Mandos is free software: you can redistribute it and/or modify it
 
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# under the terms of the GNU General Public License as published by
 
 
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# Copyright © 2009-2012 Teddy Hogeborn
 
 
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# Copyright © 2009-2012 Björn Påhlsson
 
 
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# This program is free software: you can redistribute it and/or modify
 
 
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# it under the terms of the GNU General Public License as published by
 
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# 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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#     Mandos is distributed in the hope that it will be useful, but
 
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#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
 
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#     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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# You should have received a copy of the GNU General Public License
 
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# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
 
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# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
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# Contact the authors at <mandos@recompile.se>.
 
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from __future__ import (division, absolute_import, print_function,
 
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    from future_builtins import *
 
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import urwid.curses_display
 
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from dbus.mainloop.glib import DBusGMainLoop
 
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from gi.repository import GLib
 
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if sys.version_info.major == 2:
 
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# Show warnings by default
 
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if not sys.warnoptions:
 
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    warnings.simplefilter("default")
 
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log = logging.getLogger(os.path.basename(sys.argv[0]))
 
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logging.basicConfig(level="NOTSET", # Show all messages
 
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                    format="%(message)s") # Show basic log messages
 
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logging.captureWarnings(True)   # Show warnings via the logging system
 
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locale.setlocale(locale.LC_ALL, "")
 
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logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
 
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locale.setlocale(locale.LC_ALL, '')
 
 
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logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
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# Some useful constants
 
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domain = "se.recompile"
 
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server_interface = domain + ".Mandos"
 
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client_interface = domain + ".Mandos.Client"
 
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    dbus.OBJECT_MANAGER_IFACE
 
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except AttributeError:
 
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    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
 
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domain = 'se.recompile'
 
 
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server_interface = domain + '.Mandos'
 
 
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client_interface = domain + '.Mandos.Client'
 
 
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# Always run in monochrome mode
 
 
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urwid.curses_display.curses.has_colors = lambda : False
 
 
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# Urwid doesn't support blinking, but we want it.  Since we have no
 
 
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# use for underline on its own, we make underline also always blink.
 
 
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urwid.curses_display.curses.A_UNDERLINE |= (
 
 
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    urwid.curses_display.curses.A_BLINK)
 
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def isoformat_to_datetime(iso):
 
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    "Parse an ISO 8601 date string to a datetime.datetime()"
 
 
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                             int(second),            # Whole seconds
 
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                             int(fraction*1000000))  # Microseconds
 
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class MandosClientPropertyCache:
 
 
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                             int(second),           # Whole seconds
 
 
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                             int(fraction*1000000)) # Microseconds
 
 
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class MandosClientPropertyCache(object):
 
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    """This wraps a Mandos Client D-Bus proxy object, caches the
 
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    properties and calls a hook function when any of them are
 
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    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
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        self.proxy = proxy_object  # Mandos Client proxy object
 
104
 
        self.properties = dict() if properties is None else properties
 
 
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    def __init__(self, proxy_object=None, *args, **kwargs):
 
 
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        self.proxy = proxy_object # Mandos Client proxy object
 
 
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        self.properties = dict()
 
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        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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                                         byte_arrays=True))
 
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        if properties is None:
 
112
 
            self.properties.update(self.proxy.GetAll(
 
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                dbus_interface=dbus.PROPERTIES_IFACE))
 
116
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
118
 
    def properties_changed(self, interface, properties, invalidated):
 
119
 
        """This is called whenever we get a PropertiesChanged signal
 
120
 
        It updates the changed properties in the "properties" dict.
 
 
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        self.properties.update(
 
 
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            self.proxy.GetAll(client_interface,
 
 
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                              dbus_interface = dbus.PROPERTIES_IFACE))
 
 
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        #XXX This breaks good super behaviour
 
 
101
#        super(MandosClientPropertyCache, self).__init__(
 
 
104
    def property_changed(self, property=None, value=None):
 
 
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        """This is called whenever we get a PropertyChanged signal
 
 
106
        It updates the changed property in the "properties" dict.
 
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108
        # Update properties dict with new value
 
123
 
        if interface == client_interface:
 
124
 
            self.properties.update(properties)
 
 
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        self.properties[property] = value
 
 
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    def delete(self, *args, **kwargs):
 
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        self.property_changed_match.remove()
 
 
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        super(MandosClientPropertyCache, self).__init__(
 
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class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
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    """A Mandos Client which is visible on the screen.
 
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    def __init__(self, server_proxy_object=None, update_hook=None,
 
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                 delete_hook=None, **kwargs):
 
 
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                 delete_hook=None, logger=None, *args, **kwargs):
 
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        # Called on update
 
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        self.update_hook = update_hook
 
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        # Called on delete
 
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        self.delete_hook = delete_hook
 
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        # Mandos Server proxy object
 
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        self.server_proxy_object = server_proxy_object
 
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        self._update_timer_callback_tag = None
 
 
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        self._update_timer_callback_lock = 0
 
 
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        self.last_checker_failed = False
 
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        # The widget shown normally
 
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        self._text_widget = urwid.Text("")
 
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        # The widget shown when we have focus
 
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        self._focus_text_widget = urwid.Text("")
 
149
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
 
140
        super(MandosClientWidget, self).__init__(
 
 
141
            update_hook=update_hook, delete_hook=delete_hook,
 
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        self.opened = False
 
 
146
        last_checked_ok = isoformat_to_datetime(self.properties
 
 
148
        if last_checked_ok is None:
 
 
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            self.last_checker_failed = True
 
 
151
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
 
158
        if self.last_checker_failed:
 
 
159
            self.using_timer(True)
 
 
161
        if self.need_approval:
 
 
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            self.using_timer(True)
 
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        self.match_objects = (
 
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            self.proxy.connect_to_signal("CheckerCompleted",
 
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                                         self.checker_completed,
 
 
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                                         client_interface,
 
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                                         byte_arrays=True))
 
174
 
        log.debug("Created client %s", self.properties["Name"])
 
 
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        #self.logger('Created client %s' % (self.properties["Name"]))
 
 
187
    def property_changed(self, property=None, value=None):
 
 
188
        super(self, MandosClientWidget).property_changed(property,
 
 
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        if property == "ApprovalPending":
 
 
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            using_timer(bool(value))
 
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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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        if flag and self._update_timer_callback_tag is None:
 
 
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        old = self._update_timer_callback_lock
 
 
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            self._update_timer_callback_lock += 1
 
 
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            self._update_timer_callback_lock -= 1
 
 
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        if old == 0 and self._update_timer_callback_lock:
 
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            # Will update the shown timer value every second
 
182
 
            self._update_timer_callback_tag = (
 
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                GLib.timeout_add(1000,
 
184
 
                                 glib_safely(self.update_timer)))
 
185
 
        elif not (flag or self._update_timer_callback_tag is None):
 
186
 
            GLib.source_remove(self._update_timer_callback_tag)
 
 
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            self._update_timer_callback_tag = (gobject.timeout_add
 
 
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        elif old and self._update_timer_callback_lock == 0:
 
 
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            gobject.source_remove(self._update_timer_callback_tag)
 
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            self._update_timer_callback_tag = None
 
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211
    def checker_completed(self, exitstatus, condition, command):
 
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        if exitstatus == 0:
 
191
 
            log.debug('Checker for client %s (command "%s")'
 
192
 
                      " succeeded", self.properties["Name"], command)
 
 
213
            if self.last_checker_failed:
 
 
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                self.last_checker_failed = False
 
 
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                self.using_timer(False)
 
 
216
            #self.logger('Checker for client %s (command "%s")'
 
 
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            #            % (self.properties["Name"], command))
 
 
222
        if not self.last_checker_failed:
 
 
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            self.last_checker_failed = True
 
 
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            self.using_timer(True)
 
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        if os.WIFEXITED(condition):
 
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            log.info('Checker for client %s (command "%s") failed'
 
198
 
                     " with exit code %d", self.properties["Name"],
 
199
 
                     command, os.WEXITSTATUS(condition))
 
 
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            self.logger('Checker for client %s (command "%s")'
 
 
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                        ' failed with exit code %s'
 
 
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                        % (self.properties["Name"], command,
 
 
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                           os.WEXITSTATUS(condition)))
 
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        elif os.WIFSIGNALED(condition):
 
201
 
            log.info('Checker for client %s (command "%s") was'
 
202
 
                     " killed by signal %d", self.properties["Name"],
 
203
 
                     command, os.WTERMSIG(condition))
 
 
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            self.logger('Checker for client %s (command "%s")'
 
 
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                        ' was killed by signal %s'
 
 
233
                        % (self.properties["Name"], command,
 
 
234
                           os.WTERMSIG(condition)))
 
 
235
        elif os.WCOREDUMP(condition):
 
 
236
            self.logger('Checker for client %s (command "%s")'
 
 
238
                        % (self.properties["Name"], command))
 
 
240
            self.logger('Checker for client %s completed'
 
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    def checker_started(self, command):
 
207
 
        """Server signals that a checker started."""
 
208
 
        log.debug('Client %s started checker "%s"',
 
209
 
                  self.properties["Name"], command)
 
 
245
        """Server signals that a checker started. This could be useful
 
 
246
           to log in the future. """
 
 
247
        #self.logger('Client %s started checker "%s"'
 
 
248
        #            % (self.properties["Name"], unicode(command)))
 
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251
    def got_secret(self):
 
212
 
        log.info("Client %s received its secret",
 
213
 
                 self.properties["Name"])
 
 
252
        self.last_checker_failed = False
 
 
253
        self.logger('Client %s received its secret'
 
 
254
                    % self.properties["Name"])
 
215
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    def need_approval(self, timeout, default):
 
217
 
            message = "Client %s needs approval within %f seconds"
 
 
258
            message = 'Client %s needs approval within %s seconds'
 
219
 
            message = "Client %s will get its secret in %f seconds"
 
220
 
        log.info(message, self.properties["Name"], timeout/1000)
 
 
260
            message = 'Client %s will get its secret in %s seconds'
 
 
262
                    % (self.properties["Name"], timeout/1000))
 
 
263
        self.using_timer(True)
 
222
265
    def rejected(self, reason):
 
223
 
        log.info("Client %s was rejected; reason: %s",
 
224
 
                 self.properties["Name"], reason)
 
 
266
        self.logger('Client %s was rejected; reason: %s'
 
 
267
                    % (self.properties["Name"], reason))
 
226
269
    def selectable(self):
 
227
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        """Make this a "selectable" widget.
 
228
271
        This overrides the method from urwid.FlowWidget."""
 
231
274
    def rows(self, maxcolrow, focus=False):
 
232
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        """How many rows this widget will occupy might depend on
 
233
276
        whether we have focus or not.
 
234
277
        This overrides the method from urwid.FlowWidget"""
 
235
278
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
237
280
    def current_widget(self, focus=False):
 
238
281
        if focus or self.opened:
 
239
282
            return self._focus_widget
 
240
283
        return self._widget
 
242
285
    def update(self):
 
243
286
        "Called when what is visible on the screen should be updated."
 
244
287
        # How to add standout mode to a style
 
245
 
        with_standout = {"normal": "standout",
 
246
 
                         "bold": "bold-standout",
 
248
 
                         "underline-blink-standout",
 
249
 
                         "bold-underline-blink":
 
250
 
                         "bold-underline-blink-standout",
 
 
288
        with_standout = { "normal": "standout",
 
 
289
                          "bold": "bold-standout",
 
 
291
                              "underline-blink-standout",
 
 
292
                          "bold-underline-blink":
 
 
293
                              "bold-underline-blink-standout",
 
253
296
        # Rebuild focus and non-focus widgets using current properties
 
255
298
        # Base part of a client. Name!
 
256
 
        base = "{name}: ".format(name=self.properties["Name"])
 
 
300
                      % {"name": self.properties["Name"]})
 
257
301
        if not self.properties["Enabled"]:
 
258
302
            message = "DISABLED"
 
259
 
            self.using_timer(False)
 
260
303
        elif self.properties["ApprovalPending"]:
 
261
 
            timeout = datetime.timedelta(
 
262
 
                milliseconds=self.properties["ApprovalDelay"])
 
 
304
            timeout = datetime.timedelta(milliseconds
 
263
307
            last_approval_request = isoformat_to_datetime(
 
264
308
                self.properties["LastApprovalRequest"])
 
265
309
            if last_approval_request is not None:
 
266
 
                timer = max(timeout - (datetime.datetime.utcnow()
 
267
 
                                       - last_approval_request),
 
268
 
                            datetime.timedelta())
 
 
310
                timer = timeout - (datetime.datetime.utcnow()
 
 
311
                                   - last_approval_request)
 
270
313
                timer = datetime.timedelta()
 
271
314
            if self.properties["ApprovedByDefault"]:
 
272
 
                message = "Approval in {}. (d)eny?"
 
 
315
                message = "Approval in %s. (d)eny?"
 
274
 
                message = "Denial in {}. (a)pprove?"
 
275
 
            message = message.format(str(timer).rsplit(".", 1)[0])
 
276
 
            self.using_timer(True)
 
277
 
        elif self.properties["LastCheckerStatus"] != 0:
 
278
 
            # When checker has failed, show timer until client expires
 
 
317
                message = "Denial in %s. (a)pprove?"
 
 
318
            message = message % unicode(timer).rsplit(".", 1)[0]
 
 
319
        elif self.last_checker_failed:
 
 
320
            # When checker has failed, print a timer until client expires
 
279
321
            expires = self.properties["Expires"]
 
280
322
            if expires == "":
 
281
323
                timer = datetime.timedelta(0)
 
283
 
                expires = (datetime.datetime.strptime
 
284
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
285
 
                timer = max(expires - datetime.datetime.utcnow(),
 
286
 
                            datetime.timedelta())
 
287
 
            message = ("A checker has failed! Time until client"
 
289
 
                       .format(str(timer).rsplit(".", 1)[0]))
 
290
 
            self.using_timer(True)
 
 
325
                expires = datetime.datetime.strptime(expires,
 
 
326
                                                     '%Y-%m-%dT%H:%M:%S.%f')
 
 
327
                timer = expires - datetime.datetime.utcnow()
 
 
328
            message = ('A checker has failed! Time until client'
 
 
330
                           % unicode(timer).rsplit(".", 1)[0])
 
292
332
            message = "enabled"
 
293
 
            self.using_timer(False)
 
294
 
        self._text = "{}{}".format(base, message)
 
 
333
        self._text = "%s%s" % (base, message)
 
296
335
        if not urwid.supports_unicode():
 
297
336
            self._text = self._text.encode("ascii", "replace")
 
298
337
        textlist = [("normal", self._text)]
 
 
308
347
        # Run update hook, if any
 
309
348
        if self.update_hook is not None:
 
310
349
            self.update_hook()
 
312
351
    def update_timer(self):
 
313
 
        """called by GLib. Will indefinitely loop until
 
314
 
        GLib.source_remove() on tag is called
 
 
352
        """called by gobject. Will indefinitely loop until
 
 
353
        gobject.source_remove() on tag is called"""
 
317
355
        return True             # Keep calling this
 
319
 
    def delete(self, **kwargs):
 
 
357
    def delete(self, *args, **kwargs):
 
320
358
        if self._update_timer_callback_tag is not None:
 
321
 
            GLib.source_remove(self._update_timer_callback_tag)
 
 
359
            gobject.source_remove(self._update_timer_callback_tag)
 
322
360
            self._update_timer_callback_tag = None
 
323
361
        for match in self.match_objects:
 
325
363
        self.match_objects = ()
 
326
364
        if self.delete_hook is not None:
 
327
365
            self.delete_hook(self)
 
328
 
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
366
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
330
368
    def render(self, maxcolrow, focus=False):
 
331
369
        """Render differently if we have focus.
 
332
370
        This overrides the method from urwid.FlowWidget"""
 
333
371
        return self.current_widget(focus).render(maxcolrow,
 
336
374
    def keypress(self, maxcolrow, key):
 
338
376
        This overrides the method from urwid.FlowWidget"""
 
340
 
            self.proxy.Set(client_interface, "Enabled",
 
341
 
                           dbus.Boolean(True), ignore_reply=True,
 
342
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
378
            self.proxy.Enable(dbus_interface = client_interface,
 
344
 
            self.proxy.Set(client_interface, "Enabled", False,
 
346
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
381
            self.proxy.Disable(dbus_interface = client_interface,
 
348
384
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
349
 
                               dbus_interface=client_interface,
 
 
385
                               dbus_interface = client_interface,
 
350
386
                               ignore_reply=True)
 
352
388
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
353
 
                               dbus_interface=client_interface,
 
 
389
                                  dbus_interface = client_interface,
 
354
390
                               ignore_reply=True)
 
355
391
        elif key == "R" or key == "_" or key == "ctrl k":
 
356
392
            self.server_proxy_object.RemoveClient(self.proxy
 
358
394
                                                  ignore_reply=True)
 
360
 
            self.proxy.Set(client_interface, "CheckerRunning",
 
361
 
                           dbus.Boolean(True), ignore_reply=True,
 
362
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
396
            self.proxy.StartChecker(dbus_interface = client_interface,
 
364
 
            self.proxy.Set(client_interface, "CheckerRunning",
 
365
 
                           dbus.Boolean(False), ignore_reply=True,
 
366
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
399
            self.proxy.StopChecker(dbus_interface = client_interface,
 
368
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
 
402
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
369
403
                                 ignore_reply=True)
 
371
405
#         elif key == "p" or key == "=":
 
 
380
 
    def properties_changed(self, interface, properties, invalidated):
 
381
 
        """Call self.update() if any properties changed.
 
 
414
    def property_changed(self, property=None, value=None,
 
 
416
        """Call self.update() if old value is not new value.
 
382
417
        This overrides the method from MandosClientPropertyCache"""
 
383
 
        old_values = {key: self.properties.get(key)
 
384
 
                      for key in properties.keys()}
 
385
 
        super(MandosClientWidget, self).properties_changed(
 
386
 
            interface, properties, invalidated)
 
387
 
        if any(old_values[key] != self.properties.get(key)
 
388
 
               for key in old_values):
 
 
418
        property_name = unicode(property)
 
 
419
        old_value = self.properties.get(property_name)
 
 
420
        super(MandosClientWidget, self).property_changed(
 
 
421
            property=property, value=value, *args, **kwargs)
 
 
422
        if self.properties.get(property_name) != old_value:
 
392
 
def glib_safely(func, retval=True):
 
393
 
    def safe_func(*args, **kwargs):
 
395
 
            return func(*args, **kwargs)
 
402
426
class ConstrainedListBox(urwid.ListBox):
 
403
427
    """Like a normal urwid.ListBox, but will consume all "up" or
 
404
428
    "down" key presses, thus not allowing any containing widgets to
 
405
429
    use them as an excuse to shift focus away from this widget.
 
407
 
    def keypress(self, *args, **kwargs):
 
408
 
        ret = (super(ConstrainedListBox, self)
 
409
 
               .keypress(*args, **kwargs))
 
 
431
    def keypress(self, maxcolrow, key):
 
 
432
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
410
433
        if ret in ("up", "down"):
 
 
438
class UserInterface(object):
 
416
439
    """This is the entire user interface - the whole screen
 
417
440
    with boxes, lists of client widgets, etc.
 
419
442
    def __init__(self, max_log_length=1000):
 
420
443
        DBusGMainLoop(set_as_default=True)
 
422
445
        self.screen = urwid.curses_display.Screen()
 
424
447
        self.screen.register_palette((
 
426
449
                 "default", "default", None),
 
428
 
                 "bold", "default", "bold"),
 
 
451
                 "default", "default", "bold"),
 
429
452
                ("underline-blink",
 
430
 
                 "underline,blink", "default", "underline,blink"),
 
 
453
                 "default", "default", "underline"),
 
432
 
                 "standout", "default", "standout"),
 
 
455
                 "default", "default", "standout"),
 
433
456
                ("bold-underline-blink",
 
434
 
                 "bold,underline,blink", "default",
 
435
 
                 "bold,underline,blink"),
 
 
457
                 "default", "default", ("bold", "underline")),
 
436
458
                ("bold-standout",
 
437
 
                 "bold,standout", "default", "bold,standout"),
 
 
459
                 "default", "default", ("bold", "standout")),
 
438
460
                ("underline-blink-standout",
 
439
 
                 "underline,blink,standout", "default",
 
440
 
                 "underline,blink,standout"),
 
 
461
                 "default", "default", ("underline", "standout")),
 
441
462
                ("bold-underline-blink-standout",
 
442
 
                 "bold,underline,blink,standout", "default",
 
443
 
                 "bold,underline,blink,standout"),
 
 
463
                 "default", "default", ("bold", "underline",
 
446
467
        if urwid.supports_unicode():
 
447
 
            self.divider = "─"  # \u2500
 
 
468
            self.divider = "─" # \u2500
 
 
469
            #self.divider = "━" # \u2501
 
449
 
            self.divider = "_"  # \u005f
 
 
471
            #self.divider = "-" # \u002d
 
 
472
            self.divider = "_" # \u005f
 
451
474
        self.screen.start()
 
453
476
        self.size = self.screen.get_cols_rows()
 
455
478
        self.clients = urwid.SimpleListWalker([])
 
456
479
        self.clients_dict = {}
 
458
481
        # We will add Text widgets to this list
 
459
 
        self.log = urwid.SimpleListWalker([])
 
460
483
        self.max_log_length = max_log_length
 
462
485
        # We keep a reference to the log widget so we can remove it
 
463
486
        # from the ListWalker without it getting destroyed
 
464
487
        self.logbox = ConstrainedListBox(self.log)
 
466
489
        # This keeps track of whether self.uilist currently has
 
467
490
        # self.logbox in it or not
 
468
491
        self.log_visible = True
 
469
492
        self.log_wrap = "any"
 
471
 
        self.loghandler = UILogHandler(self)
 
474
 
        self.add_log_line(("bold",
 
475
 
                           "Mandos Monitor version " + version))
 
476
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
478
 
        self.busname = domain + ".Mandos"
 
479
 
        self.main_loop = GLib.MainLoop()
 
481
 
    def client_not_found(self, key_id, address):
 
482
 
        log.info("Client with address %s and key ID %s could"
 
483
 
                 " not be found", address, key_id)
 
 
495
        self.log_message_raw(("bold",
 
 
496
                              "Mandos Monitor version " + version))
 
 
497
        self.log_message_raw(("bold",
 
 
500
        self.busname = domain + '.Mandos'
 
 
501
        self.main_loop = gobject.MainLoop()
 
 
503
    def client_not_found(self, fingerprint, address):
 
 
504
        self.log_message(("Client with address %s and fingerprint %s"
 
 
505
                          " could not be found" % (address,
 
485
508
    def rebuild(self):
 
486
509
        """This rebuilds the User Interface.
 
487
510
        Call this when the widget layout needs to change"""
 
489
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
 
512
        #self.uilist.append(urwid.ListBox(self.clients))
 
490
513
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
492
 
                                       # header=urwid.Divider(),
 
 
515
                                       #header=urwid.Divider(),
 
494
 
                                       footer=urwid.Divider(
 
495
 
                                           div_char=self.divider)))
 
 
518
                                       urwid.Divider(div_char=
 
496
520
        if self.log_visible:
 
497
521
            self.uilist.append(self.logbox)
 
498
522
        self.topwidget = urwid.Pile(self.uilist)
 
500
 
    def add_log_line(self, markup):
 
 
524
    def log_message(self, message):
 
 
525
        timestamp = datetime.datetime.now().isoformat()
 
 
526
        self.log_message_raw(timestamp + ": " + message)
 
 
528
    def log_message_raw(self, markup):
 
 
529
        """Add a log message to the log buffer."""
 
501
530
        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)]
 
505
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
 
531
        if (self.max_log_length
 
 
532
            and len(self.log) > self.max_log_length):
 
 
533
            del self.log[0:len(self.log)-self.max_log_length-1]
 
 
534
        self.logbox.set_focus(len(self.logbox.body.contents),
 
506
535
                              coming_from="above")
 
509
538
    def toggle_log_display(self):
 
510
539
        """Toggle visibility of the log buffer."""
 
511
540
        self.log_visible = not self.log_visible
 
513
 
        log.debug("Log visibility changed to: %s", self.log_visible)
 
 
542
        #self.log_message("Log visibility changed to: "
 
 
543
        #                 + unicode(self.log_visible))
 
515
545
    def change_log_display(self):
 
516
546
        """Change type of log display.
 
517
547
        Currently, this toggles wrapping of text lines."""
 
 
521
551
            self.log_wrap = "clip"
 
522
552
        for textwidget in self.log:
 
523
553
            textwidget.set_wrap_mode(self.log_wrap)
 
524
 
        log.debug("Wrap mode: %s", self.log_wrap)
 
526
 
    def find_and_remove_client(self, path, interfaces):
 
 
554
        #self.log_message("Wrap mode: " + self.log_wrap)
 
 
556
    def find_and_remove_client(self, path, name):
 
527
557
        """Find a client by its object path and remove it.
 
529
 
        This is connected to the InterfacesRemoved signal from the
 
 
559
        This is connected to the ClientRemoved signal from the
 
530
560
        Mandos server object."""
 
531
 
        if client_interface not in interfaces:
 
532
 
            # Not a Mandos client object; ignore
 
535
562
            client = self.clients_dict[path]
 
538
 
            log.warning("Unknown client %s removed", path)
 
 
565
            self.log_message("Unknown client %r (%r) removed", name,
 
542
 
    def add_new_client(self, path, ifs_and_props):
 
543
 
        """Find a client by its object path and remove it.
 
545
 
        This is connected to the InterfacesAdded signal from the
 
546
 
        Mandos server object.
 
548
 
        if client_interface not in ifs_and_props:
 
549
 
            # Not a Mandos client object; ignore
 
 
570
    def add_new_client(self, path):
 
551
571
        client_proxy_object = self.bus.get_object(self.busname, path)
 
552
 
        self.add_client(MandosClientWidget(
 
553
 
            server_proxy_object=self.mandos_serv,
 
554
 
            proxy_object=client_proxy_object,
 
555
 
            update_hook=self.refresh,
 
556
 
            delete_hook=self.remove_client,
 
557
 
            properties=dict(ifs_and_props[client_interface])),
 
 
572
        self.add_client(MandosClientWidget(server_proxy_object
 
 
575
                                           =client_proxy_object,
 
560
584
    def add_client(self, client, path=None):
 
561
585
        self.clients.append(client)
 
563
587
            path = client.proxy.object_path
 
564
588
        self.clients_dict[path] = client
 
565
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
 
589
        self.clients.sort(None, lambda c: c.properties["Name"])
 
568
592
    def remove_client(self, client, path=None):
 
569
593
        self.clients.remove(client)
 
571
595
            path = client.proxy.object_path
 
572
596
        del self.clients_dict[path]
 
 
597
        if not self.clients_dict:
 
 
598
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
 
599
            # is completely emptied, we need to recreate it.
 
 
600
            self.clients = urwid.SimpleListWalker([])
 
575
604
    def refresh(self):
 
576
605
        """Redraw the screen"""
 
577
606
        canvas = self.topwidget.render(self.size, focus=True)
 
578
607
        self.screen.draw_screen(self.size, canvas)
 
581
610
        """Start the main loop and exit when it's done."""
 
582
 
        log.addHandler(self.loghandler)
 
583
 
        self.orig_log_propagate = log.propagate
 
584
 
        log.propagate = False
 
585
 
        self.orig_log_level = log.level
 
587
611
        self.bus = dbus.SystemBus()
 
588
612
        mandos_dbus_objc = self.bus.get_object(
 
589
613
            self.busname, "/", follow_name_owner_changes=True)
 
590
 
        self.mandos_serv = dbus.Interface(
 
591
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
 
614
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
593
618
            mandos_clients = (self.mandos_serv
 
594
619
                              .GetAllClientsWithProperties())
 
595
 
            if not mandos_clients:
 
596
 
                log.warning("Note: Server has no clients.")
 
597
620
        except dbus.exceptions.DBusException:
 
598
 
            log.warning("Note: No Mandos server running.")
 
599
621
            mandos_clients = dbus.Dictionary()
 
601
623
        (self.mandos_serv
 
602
 
         .connect_to_signal("InterfacesRemoved",
 
 
624
         .connect_to_signal("ClientRemoved",
 
603
625
                            self.find_and_remove_client,
 
604
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
626
                            dbus_interface=server_interface,
 
605
627
                            byte_arrays=True))
 
606
628
        (self.mandos_serv
 
607
 
         .connect_to_signal("InterfacesAdded",
 
 
629
         .connect_to_signal("ClientAdded",
 
608
630
                            self.add_new_client,
 
609
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
631
                            dbus_interface=server_interface,
 
610
632
                            byte_arrays=True))
 
611
633
        (self.mandos_serv
 
612
634
         .connect_to_signal("ClientNotFound",
 
613
635
                            self.client_not_found,
 
614
636
                            dbus_interface=server_interface,
 
615
637
                            byte_arrays=True))
 
616
 
        for path, client in mandos_clients.items():
 
 
638
        for path, client in mandos_clients.iteritems():
 
617
639
            client_proxy_object = self.bus.get_object(self.busname,
 
619
 
            self.add_client(MandosClientWidget(
 
620
 
                server_proxy_object=self.mandos_serv,
 
621
 
                proxy_object=client_proxy_object,
 
623
 
                update_hook=self.refresh,
 
624
 
                delete_hook=self.remove_client),
 
 
641
            self.add_client(MandosClientWidget(server_proxy_object
 
 
644
                                               =client_proxy_object,
 
628
 
        self._input_callback_tag = (
 
630
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
631
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
632
 
                glib_safely(self.process_input)))
 
 
655
        self._input_callback_tag = (gobject.io_add_watch
 
633
659
        self.main_loop.run()
 
634
660
        # Main loop has finished, we should close everything now
 
635
 
        GLib.source_remove(self._input_callback_tag)
 
636
 
        with warnings.catch_warnings():
 
637
 
            warnings.simplefilter("ignore", BytesWarning)
 
 
661
        gobject.source_remove(self._input_callback_tag)
 
641
665
        self.main_loop.quit()
 
642
 
        log.removeHandler(self.loghandler)
 
643
 
        log.propagate = self.orig_log_propagate
 
645
667
    def process_input(self, source, condition):
 
646
668
        keys = self.screen.get_input()
 
647
 
        translations = {"ctrl n": "down",       # Emacs
 
648
 
                        "ctrl p": "up",         # Emacs
 
649
 
                        "ctrl v": "page down",  # Emacs
 
650
 
                        "meta v": "page up",    # Emacs
 
651
 
                        " ": "page down",       # less
 
652
 
                        "f": "page down",       # less
 
653
 
                        "b": "page up",         # less
 
 
669
        translations = { "ctrl n": "down",      # Emacs
 
 
670
                         "ctrl p": "up",        # Emacs
 
 
671
                         "ctrl v": "page down", # Emacs
 
 
672
                         "meta v": "page up",   # Emacs
 
 
673
                         " ": "page down",      # less
 
 
674
                         "f": "page down",      # less
 
 
675
                         "b": "page up",        # less
 
659
681
                key = translations[key]
 
660
682
            except KeyError:    # :-)
 
663
685
            if key == "q" or key == "Q":
 
666
688
            elif key == "window resize":
 
667
689
                self.size = self.screen.get_cols_rows()
 
669
 
            elif key == "ctrl l":
 
 
691
            elif key == "\f":  # Ctrl-L
 
672
693
            elif key == "l" or key == "D":
 
673
694
                self.toggle_log_display()
 
 
706
726
                    self.topwidget.set_focus(self.logbox)
 
709
 
                if log.level < logging.INFO:
 
710
 
                    log.setLevel(logging.INFO)
 
711
 
                    log.info("Verbose mode: Off")
 
713
 
                    log.setLevel(logging.NOTSET)
 
714
 
                    log.info("Verbose mode: On")
 
715
 
            # elif (key == "end" or key == "meta >" or key == "G"
 
717
 
            #     pass            # xxx end-of-buffer
 
718
 
            # elif (key == "home" or key == "meta <" or key == "g"
 
720
 
            #     pass            # xxx beginning-of-buffer
 
721
 
            # elif key == "ctrl e" or key == "$":
 
722
 
            #     pass            # xxx move-end-of-line
 
723
 
            # elif key == "ctrl a" or key == "^":
 
724
 
            #     pass            # xxx move-beginning-of-line
 
725
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
727
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
730
 
            #     pass            # scroll up log
 
732
 
            #     pass            # scroll down log
 
 
728
            #elif (key == "end" or key == "meta >" or key == "G"
 
 
730
            #    pass            # xxx end-of-buffer
 
 
731
            #elif (key == "home" or key == "meta <" or key == "g"
 
 
733
            #    pass            # xxx beginning-of-buffer
 
 
734
            #elif key == "ctrl e" or key == "$":
 
 
735
            #    pass            # xxx move-end-of-line
 
 
736
            #elif key == "ctrl a" or key == "^":
 
 
737
            #    pass            # xxx move-beginning-of-line
 
 
738
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
 
740
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
 
743
            #    pass            # scroll up log
 
 
745
            #    pass            # scroll down log
 
733
746
            elif self.topwidget.selectable():
 
734
747
                self.topwidget.keypress(self.size, key)
 
739
 
class UILogHandler(logging.Handler):
 
740
 
    def __init__(self, ui, *args, **kwargs):
 
742
 
        super(UILogHandler, self).__init__(*args, **kwargs)
 
744
 
            logging.Formatter("%(asctime)s: %(message)s"))
 
745
 
    def emit(self, record):
 
746
 
        msg = self.format(record)
 
747
 
        if record.levelno > logging.INFO:
 
749
 
        self.ui.add_log_line(msg)
 
752
751
ui = UserInterface()
 
755
754
except KeyboardInterrupt:
 
756
 
    with warnings.catch_warnings():
 
757
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
760
 
    with warnings.catch_warnings():
 
761
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
757
    ui.log_message(unicode(e))