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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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# 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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#     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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# Contact the authors at <mandos@recompile.se>.
 
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from __future__ import division, absolute_import, with_statement
 
 
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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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locale.setlocale(locale.LC_ALL, u'')
 
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logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
 
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if sys.version_info.major == 2:
 
 
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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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# Some useful constants
 
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domain = 'se.bsnet.fukt'
 
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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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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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def isoformat_to_datetime(iso):
 
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    "Parse an ISO 8601 date string to a datetime.datetime()"
 
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    d, t = iso.split(u"T", 1)
 
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    year, month, day = d.split(u"-", 2)
 
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    hour, minute, second = t.split(u":", 2)
 
 
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    d, t = iso.split("T", 1)
 
 
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    year, month, day = d.split("-", 2)
 
 
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    hour, minute, second = t.split(":", 2)
 
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    second, fraction = divmod(float(second), 1)
 
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    return datetime.datetime(int(year),
 
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                             int(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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    properties and calls a hook function when any of them are
 
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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.proxy.connect_to_signal(u"PropertyChanged",
 
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                                     self.property_changed,
 
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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 break good super behaviour!
 
78
 
#        super(MandosClientPropertyCache, self).__init__(
 
81
 
    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 __init__(self, proxy_object=None, properties=None, **kwargs):
 
 
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        self.proxy = proxy_object  # Mandos Client proxy object
 
 
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        self.properties = dict() if properties is None else properties
 
 
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        self.property_changed_match = (
 
 
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            self.proxy.connect_to_signal("PropertiesChanged",
 
 
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                                         self.properties_changed,
 
 
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                                         dbus.PROPERTIES_IFACE,
 
 
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        if properties is None:
 
 
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            self.properties.update(self.proxy.GetAll(
 
 
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                dbus_interface=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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        # Update properties dict with new value
 
86
 
        self.properties[property] = value
 
 
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        if interface == client_interface:
 
 
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            self.properties.update(properties)
 
 
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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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    def __init__(self, server_proxy_object=None, update_hook=None,
 
94
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
 
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                 delete_hook=None, **kwargs):
 
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        # Called on update
 
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        self.update_hook = update_hook
 
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        # Called on delete
 
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        self.delete_hook = delete_hook
 
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        # Mandos Server proxy object
 
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        self.server_proxy_object = server_proxy_object
 
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        self._update_timer_callback_tag = None
 
105
 
        self.last_checker_failed = False
 
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        # The widget shown normally
 
108
 
        self._text_widget = urwid.Text(u"")
 
 
140
        self._text_widget = urwid.Text("")
 
109
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        # The widget shown when we have focus
 
110
 
        self._focus_text_widget = urwid.Text(u"")
 
111
 
        super(MandosClientWidget, self).__init__(
 
112
 
            update_hook=update_hook, delete_hook=delete_hook,
 
 
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        self._focus_text_widget = urwid.Text("")
 
 
143
        super(MandosClientWidget, self).__init__(**kwargs)
 
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        self.opened = False
 
116
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
117
 
                                     self.checker_completed,
 
120
 
        self.proxy.connect_to_signal(u"CheckerStarted",
 
121
 
                                     self.checker_started,
 
124
 
        self.proxy.connect_to_signal(u"GotSecret",
 
128
 
        self.proxy.connect_to_signal(u"NeedApproval",
 
132
 
        self.proxy.connect_to_signal(u"Rejected",
 
136
 
        last_checked_ok = isoformat_to_datetime(self.properties
 
138
 
        if last_checked_ok is None:
 
139
 
            self.last_checker_failed = True
 
141
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
147
 
        if self.last_checker_failed:
 
148
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
 
147
        self.match_objects = (
 
 
148
            self.proxy.connect_to_signal("CheckerCompleted",
 
 
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                                         self.checker_completed,
 
 
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            self.proxy.connect_to_signal("CheckerStarted",
 
 
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                                         self.checker_started,
 
 
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            self.proxy.connect_to_signal("GotSecret",
 
 
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            self.proxy.connect_to_signal("NeedApproval",
 
 
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            self.proxy.connect_to_signal("Rejected",
 
 
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        log.debug("Created client %s", self.properties["Name"])
 
 
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    def using_timer(self, flag):
 
 
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        """Call this method with True or False when timer should be
 
 
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        activated or deactivated.
 
 
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        if flag and self._update_timer_callback_tag is None:
 
 
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            # Will update the shown timer value every second
 
 
176
            self._update_timer_callback_tag = (
 
 
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                GLib.timeout_add(1000,
 
 
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                                 glib_safely(self.update_timer)))
 
 
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        elif not (flag or self._update_timer_callback_tag is None):
 
 
180
            GLib.source_remove(self._update_timer_callback_tag)
 
 
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            self._update_timer_callback_tag = None
 
152
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    def checker_completed(self, exitstatus, condition, command):
 
153
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        if exitstatus == 0:
 
154
 
            if self.last_checker_failed:
 
155
 
                self.last_checker_failed = False
 
156
 
                gobject.source_remove(self._update_timer_callback_tag)
 
157
 
                self._update_timer_callback_tag = None
 
158
 
            #self.logger(u'Checker for client %s (command "%s")'
 
160
 
            #            % (self.properties[u"Name"], command))
 
 
185
            log.debug('Checker for client %s (command "%s")'
 
 
186
                      " succeeded", self.properties["Name"], command)
 
164
 
        if not self.last_checker_failed:
 
165
 
            self.last_checker_failed = True
 
166
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
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        if os.WIFEXITED(condition):
 
170
 
            self.logger(u'Checker for client %s (command "%s")'
 
171
 
                        u' failed with exit code %s'
 
172
 
                        % (self.properties[u"Name"], command,
 
173
 
                           os.WEXITSTATUS(condition)))
 
 
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            log.info('Checker for client %s (command "%s") failed'
 
 
192
                     " with exit code %d", self.properties["Name"],
 
 
193
                     command, os.WEXITSTATUS(condition))
 
174
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        elif os.WIFSIGNALED(condition):
 
175
 
            self.logger(u'Checker for client %s (command "%s")'
 
176
 
                        u' was killed by signal %s'
 
177
 
                        % (self.properties[u"Name"], command,
 
178
 
                           os.WTERMSIG(condition)))
 
179
 
        elif os.WCOREDUMP(condition):
 
180
 
            self.logger(u'Checker for client %s (command "%s")'
 
182
 
                        % (self.properties[u"Name"], command))
 
184
 
            self.logger(u'Checker for client %s completed'
 
 
195
            log.info('Checker for client %s (command "%s") was'
 
 
196
                     " killed by signal %d", self.properties["Name"],
 
 
197
                     command, os.WTERMSIG(condition))
 
188
200
    def checker_started(self, command):
 
189
 
        #self.logger(u'Client %s started checker "%s"'
 
190
 
        #            % (self.properties[u"Name"], unicode(command)))
 
 
201
        """Server signals that a checker started."""
 
 
202
        log.debug('Client %s started checker "%s"',
 
 
203
                  self.properties["Name"], command)
 
193
205
    def got_secret(self):
 
194
 
        self.last_checker_failed = False
 
195
 
        self.logger(u'Client %s received its secret'
 
196
 
                    % self.properties[u"Name"])
 
 
206
        log.info("Client %s received its secret",
 
 
207
                 self.properties["Name"])
 
198
209
    def need_approval(self, timeout, default):
 
200
 
            message = u'Client %s needs approval within %s seconds'
 
 
211
            message = "Client %s needs approval within %f seconds"
 
202
 
            message = u'Client %s will get its secret in %s seconds'
 
204
 
                    % (self.properties[u"Name"], timeout/1000))
 
 
213
            message = "Client %s will get its secret in %f seconds"
 
 
214
        log.info(message, self.properties["Name"], timeout/1000)
 
206
216
    def rejected(self, reason):
 
207
 
        self.logger(u'Client %s was rejected; reason: %s'
 
208
 
                    % (self.properties[u"Name"], reason))
 
 
217
        log.info("Client %s was rejected; reason: %s",
 
 
218
                 self.properties["Name"], reason)
 
210
220
    def selectable(self):
 
211
221
        """Make this a "selectable" widget.
 
212
222
        This overrides the method from urwid.FlowWidget."""
 
215
 
    def rows(self, (maxcol,), focus=False):
 
 
225
    def rows(self, maxcolrow, focus=False):
 
216
226
        """How many rows this widget will occupy might depend on
 
217
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        whether we have focus or not.
 
218
228
        This overrides the method from urwid.FlowWidget"""
 
219
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
 
229
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
221
231
    def current_widget(self, focus=False):
 
222
232
        if focus or self.opened:
 
223
233
            return self._focus_widget
 
224
234
        return self._widget
 
226
236
    def update(self):
 
227
237
        "Called when what is visible on the screen should be updated."
 
228
238
        # How to add standout mode to a style
 
229
 
        with_standout = { u"normal": u"standout",
 
230
 
                          u"bold": u"bold-standout",
 
232
 
                              u"underline-blink-standout",
 
233
 
                          u"bold-underline-blink":
 
234
 
                              u"bold-underline-blink-standout",
 
 
239
        with_standout = {"normal": "standout",
 
 
240
                         "bold": "bold-standout",
 
 
242
                         "underline-blink-standout",
 
 
243
                         "bold-underline-blink":
 
 
244
                         "bold-underline-blink-standout",
 
237
247
        # Rebuild focus and non-focus widgets using current properties
 
239
249
        # Base part of a client. Name!
 
240
 
        base = (u'%(name)s: '
 
241
 
                      % {u"name": self.properties[u"Name"]})
 
242
 
        if not self.properties[u"Enabled"]:
 
243
 
            message = u"DISABLED"
 
244
 
        elif self.properties[u"ApprovalPending"]:
 
245
 
            if self.properties[u"ApprovedByDefault"]:
 
246
 
                message = u"Connection established to client. (d)eny?"
 
248
 
                message = u"Seeks approval to send secret. (a)pprove?"
 
249
 
        elif self.last_checker_failed:
 
250
 
            timeout = datetime.timedelta(milliseconds
 
253
 
            last_ok = isoformat_to_datetime(
 
254
 
                max((self.properties[u"LastCheckedOK"]
 
255
 
                     or self.properties[u"Created"]),
 
256
 
                    self.properties[u"LastEnabled"]))
 
257
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
258
 
            message = (u'A checker has failed! Time until client'
 
260
 
                           % unicode(timer).rsplit(".", 1)[0])
 
 
250
        base = "{name}: ".format(name=self.properties["Name"])
 
 
251
        if not self.properties["Enabled"]:
 
 
253
            self.using_timer(False)
 
 
254
        elif self.properties["ApprovalPending"]:
 
 
255
            timeout = datetime.timedelta(
 
 
256
                milliseconds=self.properties["ApprovalDelay"])
 
 
257
            last_approval_request = isoformat_to_datetime(
 
 
258
                self.properties["LastApprovalRequest"])
 
 
259
            if last_approval_request is not None:
 
 
260
                timer = max(timeout - (datetime.datetime.utcnow()
 
 
261
                                       - last_approval_request),
 
 
262
                            datetime.timedelta())
 
 
264
                timer = datetime.timedelta()
 
 
265
            if self.properties["ApprovedByDefault"]:
 
 
266
                message = "Approval in {}. (d)eny?"
 
 
268
                message = "Denial in {}. (a)pprove?"
 
 
269
            message = message.format(str(timer).rsplit(".", 1)[0])
 
 
270
            self.using_timer(True)
 
 
271
        elif self.properties["LastCheckerStatus"] != 0:
 
 
272
            # When checker has failed, show timer until client expires
 
 
273
            expires = self.properties["Expires"]
 
 
275
                timer = datetime.timedelta(0)
 
 
277
                expires = (datetime.datetime.strptime
 
 
278
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
 
279
                timer = max(expires - datetime.datetime.utcnow(),
 
 
280
                            datetime.timedelta())
 
 
281
            message = ("A checker has failed! Time until client"
 
 
283
                       .format(str(timer).rsplit(".", 1)[0]))
 
 
284
            self.using_timer(True)
 
263
 
        self._text = "%s%s" % (base, message)
 
 
287
            self.using_timer(False)
 
 
288
        self._text = "{}{}".format(base, message)
 
265
290
        if not urwid.supports_unicode():
 
266
291
            self._text = self._text.encode("ascii", "replace")
 
267
 
        textlist = [(u"normal", self._text)]
 
 
292
        textlist = [("normal", self._text)]
 
268
293
        self._text_widget.set_text(textlist)
 
269
294
        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
277
302
        # Run update hook, if any
 
278
303
        if self.update_hook is not None:
 
279
304
            self.update_hook()
 
281
306
    def update_timer(self):
 
 
307
        """called by GLib. Will indefinitely loop until
 
 
308
        GLib.source_remove() on tag is called
 
284
311
        return True             # Keep calling this
 
 
313
    def delete(self, **kwargs):
 
287
314
        if self._update_timer_callback_tag is not None:
 
288
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
315
            GLib.source_remove(self._update_timer_callback_tag)
 
289
316
            self._update_timer_callback_tag = None
 
 
317
        for match in self.match_objects:
 
 
319
        self.match_objects = ()
 
290
320
        if self.delete_hook is not None:
 
291
321
            self.delete_hook(self)
 
293
 
    def render(self, (maxcol,), focus=False):
 
 
322
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
324
    def render(self, maxcolrow, focus=False):
 
294
325
        """Render differently if we have focus.
 
295
326
        This overrides the method from urwid.FlowWidget"""
 
296
 
        return self.current_widget(focus).render((maxcol,),
 
 
327
        return self.current_widget(focus).render(maxcolrow,
 
299
 
    def keypress(self, (maxcol,), key):
 
 
330
    def keypress(self, maxcolrow, key):
 
301
332
        This overrides the method from urwid.FlowWidget"""
 
303
 
            self.proxy.Enable(dbus_interface = client_interface)
 
305
 
            self.proxy.Disable(dbus_interface = client_interface)
 
 
334
            self.proxy.Set(client_interface, "Enabled",
 
 
335
                           dbus.Boolean(True), ignore_reply=True,
 
 
336
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
338
            self.proxy.Set(client_interface, "Enabled", False,
 
 
340
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
307
342
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
308
 
                               dbus_interface = client_interface)
 
 
343
                               dbus_interface=client_interface,
 
310
346
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
311
 
                                  dbus_interface = client_interface)
 
312
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
 
347
                               dbus_interface=client_interface,
 
 
349
        elif key == "R" or key == "_" or key == "ctrl k":
 
313
350
            self.server_proxy_object.RemoveClient(self.proxy
 
316
 
            self.proxy.StartChecker(dbus_interface = client_interface)
 
318
 
            self.proxy.StopChecker(dbus_interface = client_interface)
 
320
 
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
 
354
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
355
                           dbus.Boolean(True), ignore_reply=True,
 
 
356
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
358
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
359
                           dbus.Boolean(False), ignore_reply=True,
 
 
360
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
362
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
322
 
#         elif key == u"p" or key == "=":
 
 
365
#         elif key == "p" or key == "=":
 
323
366
#             self.proxy.pause()
 
324
 
#         elif key == u"u" or key == ":":
 
 
367
#         elif key == "u" or key == ":":
 
325
368
#             self.proxy.unpause()
 
326
 
#         elif key == u"RET":
 
329
 
#            self.proxy.Approve(True)
 
331
 
#            self.proxy.Approve(False)
 
335
 
    def property_changed(self, property=None, value=None,
 
337
 
        """Call self.update() if old value is not new value.
 
 
374
    def properties_changed(self, interface, properties, invalidated):
 
 
375
        """Call self.update() if any properties changed.
 
338
376
        This overrides the method from MandosClientPropertyCache"""
 
339
 
        property_name = unicode(property)
 
340
 
        old_value = self.properties.get(property_name)
 
341
 
        super(MandosClientWidget, self).property_changed(
 
342
 
            property=property, value=value, *args, **kwargs)
 
343
 
        if self.properties.get(property_name) != old_value:
 
 
377
        old_values = {key: self.properties.get(key)
 
 
378
                      for key in properties.keys()}
 
 
379
        super(MandosClientWidget, self).properties_changed(
 
 
380
            interface, properties, invalidated)
 
 
381
        if any(old_values[key] != self.properties.get(key)
 
 
382
               for key in old_values):
 
 
386
def glib_safely(func, retval=True):
 
 
387
    def safe_func(*args, **kwargs):
 
 
389
            return func(*args, **kwargs)
 
347
396
class ConstrainedListBox(urwid.ListBox):
 
348
397
    """Like a normal urwid.ListBox, but will consume all "up" or
 
349
398
    "down" key presses, thus not allowing any containing widgets to
 
350
399
    use them as an excuse to shift focus away from this widget.
 
352
 
    def keypress(self, (maxcol, maxrow), key):
 
353
 
        ret = super(ConstrainedListBox, self).keypress((maxcol,
 
355
 
        if ret in (u"up", u"down"):
 
 
401
    def keypress(self, *args, **kwargs):
 
 
402
        ret = (super(ConstrainedListBox, self)
 
 
403
               .keypress(*args, **kwargs))
 
 
404
        if ret in ("up", "down"):
 
 
364
413
    def __init__(self, max_log_length=1000):
 
365
414
        DBusGMainLoop(set_as_default=True)
 
367
416
        self.screen = urwid.curses_display.Screen()
 
369
418
        self.screen.register_palette((
 
371
 
                 u"default", u"default", None),
 
373
 
                 u"default", u"default", u"bold"),
 
375
 
                 u"default", u"default", u"underline"),
 
377
 
                 u"default", u"default", u"standout"),
 
378
 
                (u"bold-underline-blink",
 
379
 
                 u"default", u"default", (u"bold", u"underline")),
 
381
 
                 u"default", u"default", (u"bold", u"standout")),
 
382
 
                (u"underline-blink-standout",
 
383
 
                 u"default", u"default", (u"underline", u"standout")),
 
384
 
                (u"bold-underline-blink-standout",
 
385
 
                 u"default", u"default", (u"bold", u"underline",
 
 
420
                 "default", "default", None),
 
 
422
                 "bold", "default", "bold"),
 
 
424
                 "underline,blink", "default", "underline,blink"),
 
 
426
                 "standout", "default", "standout"),
 
 
427
                ("bold-underline-blink",
 
 
428
                 "bold,underline,blink", "default",
 
 
429
                 "bold,underline,blink"),
 
 
431
                 "bold,standout", "default", "bold,standout"),
 
 
432
                ("underline-blink-standout",
 
 
433
                 "underline,blink,standout", "default",
 
 
434
                 "underline,blink,standout"),
 
 
435
                ("bold-underline-blink-standout",
 
 
436
                 "bold,underline,blink,standout", "default",
 
 
437
                 "bold,underline,blink,standout"),
 
389
440
        if urwid.supports_unicode():
 
390
 
            self.divider = u"─" # \u2500
 
391
 
            #self.divider = u"━" # \u2501
 
 
441
            self.divider = "─"  # \u2500
 
393
 
            #self.divider = u"-" # \u002d
 
394
 
            self.divider = u"_" # \u005f
 
 
443
            self.divider = "_"  # \u005f
 
396
445
        self.screen.start()
 
398
447
        self.size = self.screen.get_cols_rows()
 
400
449
        self.clients = urwid.SimpleListWalker([])
 
401
450
        self.clients_dict = {}
 
403
452
        # We will add Text widgets to this list
 
 
453
        self.log = urwid.SimpleListWalker([])
 
405
454
        self.max_log_length = max_log_length
 
407
456
        # We keep a reference to the log widget so we can remove it
 
408
457
        # from the ListWalker without it getting destroyed
 
409
458
        self.logbox = ConstrainedListBox(self.log)
 
411
460
        # This keeps track of whether self.uilist currently has
 
412
461
        # self.logbox in it or not
 
413
462
        self.log_visible = True
 
414
 
        self.log_wrap = u"any"
 
 
463
        self.log_wrap = "any"
 
 
465
        self.loghandler = UILogHandler(self)
 
417
 
        self.log_message_raw((u"bold",
 
418
 
                              u"Mandos Monitor version " + version))
 
419
 
        self.log_message_raw((u"bold",
 
422
 
        self.busname = domain + '.Mandos'
 
423
 
        self.main_loop = gobject.MainLoop()
 
424
 
        self.bus = dbus.SystemBus()
 
425
 
        mandos_dbus_objc = self.bus.get_object(
 
426
 
            self.busname, u"/", follow_name_owner_changes=True)
 
427
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
431
 
            mandos_clients = (self.mandos_serv
 
432
 
                              .GetAllClientsWithProperties())
 
433
 
        except dbus.exceptions.DBusException:
 
434
 
            mandos_clients = dbus.Dictionary()
 
437
 
         .connect_to_signal(u"ClientRemoved",
 
438
 
                            self.find_and_remove_client,
 
439
 
                            dbus_interface=server_interface,
 
442
 
         .connect_to_signal(u"ClientAdded",
 
444
 
                            dbus_interface=server_interface,
 
447
 
         .connect_to_signal(u"ClientNotFound",
 
448
 
                            self.client_not_found,
 
449
 
                            dbus_interface=server_interface,
 
451
 
        for path, client in mandos_clients.iteritems():
 
452
 
            client_proxy_object = self.bus.get_object(self.busname,
 
454
 
            self.add_client(MandosClientWidget(server_proxy_object
 
457
 
                                               =client_proxy_object,
 
467
 
    def client_not_found(self, fingerprint, address):
 
468
 
        self.log_message((u"Client with address %s and fingerprint %s"
 
469
 
                          u" could not be found" % (address,
 
 
468
        self.add_log_line(("bold",
 
 
469
                           "Mandos Monitor version " + version))
 
 
470
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
 
472
        self.busname = domain + ".Mandos"
 
 
473
        self.main_loop = GLib.MainLoop()
 
 
475
    def client_not_found(self, key_id, address):
 
 
476
        log.info("Client with address %s and key ID %s could"
 
 
477
                 " not be found", address, key_id)
 
472
479
    def rebuild(self):
 
473
480
        """This rebuilds the User Interface.
 
474
481
        Call this when the widget layout needs to change"""
 
476
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
 
483
        # self.uilist.append(urwid.ListBox(self.clients))
 
477
484
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
479
 
                                       #header=urwid.Divider(),
 
 
486
                                       # header=urwid.Divider(),
 
482
 
                                       urwid.Divider(div_char=
 
 
488
                                       footer=urwid.Divider(
 
 
489
                                           div_char=self.divider)))
 
484
490
        if self.log_visible:
 
485
491
            self.uilist.append(self.logbox)
 
487
492
        self.topwidget = urwid.Pile(self.uilist)
 
489
 
    def log_message(self, message):
 
490
 
        timestamp = datetime.datetime.now().isoformat()
 
491
 
        self.log_message_raw(timestamp + u": " + message)
 
493
 
    def log_message_raw(self, markup):
 
494
 
        """Add a log message to the log buffer."""
 
 
494
    def add_log_line(self, markup):
 
495
495
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
496
 
        if (self.max_log_length
 
497
 
            and len(self.log) > self.max_log_length):
 
498
 
            del self.log[0:len(self.log)-self.max_log_length-1]
 
499
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
500
 
                              coming_from=u"above")
 
 
496
        if self.max_log_length:
 
 
497
            if len(self.log) > self.max_log_length:
 
 
498
                del self.log[0:(len(self.log) - self.max_log_length)]
 
 
499
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
503
503
    def toggle_log_display(self):
 
504
504
        """Toggle visibility of the log buffer."""
 
505
505
        self.log_visible = not self.log_visible
 
507
 
        self.log_message(u"Log visibility changed to: "
 
508
 
                         + unicode(self.log_visible))
 
 
507
        log.debug("Log visibility changed to: %s", self.log_visible)
 
510
509
    def change_log_display(self):
 
511
510
        """Change type of log display.
 
512
511
        Currently, this toggles wrapping of text lines."""
 
513
 
        if self.log_wrap == u"clip":
 
514
 
            self.log_wrap = u"any"
 
 
512
        if self.log_wrap == "clip":
 
 
513
            self.log_wrap = "any"
 
516
 
            self.log_wrap = u"clip"
 
 
515
            self.log_wrap = "clip"
 
517
516
        for textwidget in self.log:
 
518
517
            textwidget.set_wrap_mode(self.log_wrap)
 
519
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
521
 
    def find_and_remove_client(self, path, name):
 
522
 
        """Find an client from its object path and remove it.
 
524
 
        This is connected to the ClientRemoved signal from the
 
 
518
        log.debug("Wrap mode: %s", self.log_wrap)
 
 
520
    def find_and_remove_client(self, path, interfaces):
 
 
521
        """Find a client by its object path and remove it.
 
 
523
        This is connected to the InterfacesRemoved signal from the
 
525
524
        Mandos server object."""
 
 
525
        if client_interface not in interfaces:
 
 
526
            # Not a Mandos client object; ignore
 
527
529
            client = self.clients_dict[path]
 
531
 
        self.remove_client(client, path)
 
533
 
    def add_new_client(self, path):
 
 
532
            log.warning("Unknown client %s removed", path)
 
 
536
    def add_new_client(self, path, ifs_and_props):
 
 
537
        """Find a client by its object path and remove it.
 
 
539
        This is connected to the InterfacesAdded signal from the
 
 
540
        Mandos server object.
 
 
542
        if client_interface not in ifs_and_props:
 
 
543
            # Not a Mandos client object; ignore
 
534
545
        client_proxy_object = self.bus.get_object(self.busname, path)
 
535
 
        self.add_client(MandosClientWidget(server_proxy_object
 
538
 
                                           =client_proxy_object,
 
 
546
        self.add_client(MandosClientWidget(
 
 
547
            server_proxy_object=self.mandos_serv,
 
 
548
            proxy_object=client_proxy_object,
 
 
549
            update_hook=self.refresh,
 
 
550
            delete_hook=self.remove_client,
 
 
551
            properties=dict(ifs_and_props[client_interface])),
 
547
554
    def add_client(self, client, path=None):
 
548
555
        self.clients.append(client)
 
550
557
            path = client.proxy.object_path
 
551
558
        self.clients_dict[path] = client
 
552
 
        self.clients.sort(None, lambda c: c.properties[u"Name"])
 
 
559
        self.clients.sort(key=lambda c: c.properties["Name"])
 
555
562
    def remove_client(self, client, path=None):
 
556
563
        self.clients.remove(client)
 
558
565
            path = client.proxy.object_path
 
559
566
        del self.clients_dict[path]
 
560
 
        if not self.clients_dict:
 
561
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
562
 
            # is completely emptied, we need to recreate it.
 
563
 
            self.clients = urwid.SimpleListWalker([])
 
567
569
    def refresh(self):
 
568
570
        """Redraw the screen"""
 
569
571
        canvas = self.topwidget.render(self.size, focus=True)
 
570
572
        self.screen.draw_screen(self.size, canvas)
 
573
575
        """Start the main loop and exit when it's done."""
 
 
576
        log.addHandler(self.loghandler)
 
 
577
        self.orig_log_propagate = log.propagate
 
 
578
        log.propagate = False
 
 
579
        self.orig_log_level = log.level
 
 
581
        self.bus = dbus.SystemBus()
 
 
582
        mandos_dbus_objc = self.bus.get_object(
 
 
583
            self.busname, "/", follow_name_owner_changes=True)
 
 
584
        self.mandos_serv = dbus.Interface(
 
 
585
            mandos_dbus_objc, dbus_interface=server_interface)
 
 
587
            mandos_clients = (self.mandos_serv
 
 
588
                              .GetAllClientsWithProperties())
 
 
589
            if not mandos_clients:
 
 
590
                log.warning("Note: Server has no clients.")
 
 
591
        except dbus.exceptions.DBusException:
 
 
592
            log.warning("Note: No Mandos server running.")
 
 
593
            mandos_clients = dbus.Dictionary()
 
 
596
         .connect_to_signal("InterfacesRemoved",
 
 
597
                            self.find_and_remove_client,
 
 
598
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
601
         .connect_to_signal("InterfacesAdded",
 
 
603
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
606
         .connect_to_signal("ClientNotFound",
 
 
607
                            self.client_not_found,
 
 
608
                            dbus_interface=server_interface,
 
 
610
        for path, client in mandos_clients.items():
 
 
611
            client_proxy_object = self.bus.get_object(self.busname,
 
 
613
            self.add_client(MandosClientWidget(
 
 
614
                server_proxy_object=self.mandos_serv,
 
 
615
                proxy_object=client_proxy_object,
 
 
617
                update_hook=self.refresh,
 
 
618
                delete_hook=self.remove_client),
 
575
 
        self._input_callback_tag = (gobject.io_add_watch
 
 
622
        self._input_callback_tag = (
 
 
624
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
 
625
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
 
626
                glib_safely(self.process_input)))
 
579
627
        self.main_loop.run()
 
580
628
        # Main loop has finished, we should close everything now
 
581
 
        gobject.source_remove(self._input_callback_tag)
 
 
629
        GLib.source_remove(self._input_callback_tag)
 
 
630
        with warnings.catch_warnings():
 
 
631
            warnings.simplefilter("ignore", BytesWarning)
 
585
635
        self.main_loop.quit()
 
 
636
        log.removeHandler(self.loghandler)
 
 
637
        log.propagate = self.orig_log_propagate
 
587
639
    def process_input(self, source, condition):
 
588
640
        keys = self.screen.get_input()
 
589
 
        translations = { u"ctrl n": u"down",      # Emacs
 
590
 
                         u"ctrl p": u"up",        # Emacs
 
591
 
                         u"ctrl v": u"page down", # Emacs
 
592
 
                         u"meta v": u"page up",   # Emacs
 
593
 
                         u" ": u"page down",      # less
 
594
 
                         u"f": u"page down",      # less
 
595
 
                         u"b": u"page up",        # less
 
 
641
        translations = {"ctrl n": "down",       # Emacs
 
 
642
                        "ctrl p": "up",         # Emacs
 
 
643
                        "ctrl v": "page down",  # Emacs
 
 
644
                        "meta v": "page up",    # Emacs
 
 
645
                        " ": "page down",       # less
 
 
646
                        "f": "page down",       # less
 
 
647
                        "b": "page up",         # less
 
601
653
                key = translations[key]
 
602
654
            except KeyError:    # :-)
 
605
 
            if key == u"q" or key == u"Q":
 
 
657
            if key == "q" or key == "Q":
 
608
 
            elif key == u"window resize":
 
 
660
            elif key == "window resize":
 
609
661
                self.size = self.screen.get_cols_rows()
 
611
 
            elif key == u"\f":  # Ctrl-L
 
 
663
            elif key == "ctrl l":
 
613
 
            elif key == u"l" or key == u"D":
 
 
666
            elif key == "l" or key == "D":
 
614
667
                self.toggle_log_display()
 
616
 
            elif key == u"w" or key == u"i":
 
 
669
            elif key == "w" or key == "i":
 
617
670
                self.change_log_display()
 
619
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
 
672
            elif key == "?" or key == "f1" or key == "esc":
 
620
673
                if not self.log_visible:
 
621
674
                    self.log_visible = True
 
623
 
                self.log_message_raw((u"bold",
 
627
 
                                            u"l: Log window toggle",
 
628
 
                                            u"TAB: Switch window",
 
630
 
                self.log_message_raw((u"bold",
 
636
 
                                             u"s: Start new checker",
 
 
676
                self.add_log_line(("bold",
 
 
679
                                              "l: Log window toggle",
 
 
680
                                              "TAB: Switch window",
 
 
681
                                              "w: Wrap (log lines)",
 
 
682
                                              "v: Toggle verbose log",
 
 
684
                self.add_log_line(("bold",
 
 
685
                                   "  ".join(("Clients:",
 
 
689
                                              "s: Start new checker",
 
643
697
                if self.topwidget.get_focus() is self.logbox:
 
644
698
                    self.topwidget.set_focus(0)
 
646
700
                    self.topwidget.set_focus(self.logbox)
 
648
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
650
 
            #    pass            # xxx end-of-buffer
 
651
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
653
 
            #    pass            # xxx beginning-of-buffer
 
654
 
            #elif key == u"ctrl e" or key == u"$":
 
655
 
            #    pass            # xxx move-end-of-line
 
656
 
            #elif key == u"ctrl a" or key == u"^":
 
657
 
            #    pass            # xxx move-beginning-of-line
 
658
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
660
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
663
 
            #    pass            # scroll up log
 
665
 
            #    pass            # scroll down log
 
 
703
                if log.level < logging.INFO:
 
 
704
                    log.setLevel(logging.INFO)
 
 
705
                    log.info("Verbose mode: Off")
 
 
707
                    log.setLevel(logging.NOTSET)
 
 
708
                    log.info("Verbose mode: On")
 
 
709
            # elif (key == "end" or key == "meta >" or key == "G"
 
 
711
            #     pass            # xxx end-of-buffer
 
 
712
            # elif (key == "home" or key == "meta <" or key == "g"
 
 
714
            #     pass            # xxx beginning-of-buffer
 
 
715
            # elif key == "ctrl e" or key == "$":
 
 
716
            #     pass            # xxx move-end-of-line
 
 
717
            # elif key == "ctrl a" or key == "^":
 
 
718
            #     pass            # xxx move-beginning-of-line
 
 
719
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
 
721
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
 
724
            #     pass            # scroll up log
 
 
726
            #     pass            # scroll down log
 
666
727
            elif self.topwidget.selectable():
 
667
728
                self.topwidget.keypress(self.size, key)
 
 
733
class UILogHandler(logging.Handler):
 
 
734
    def __init__(self, ui, *args, **kwargs):
 
 
736
        super(UILogHandler, self).__init__(*args, **kwargs)
 
 
738
            logging.Formatter("%(asctime)s: %(message)s"))
 
 
739
    def emit(self, record):
 
 
740
        msg = self.format(record)
 
 
741
        if record.levelno > logging.INFO:
 
 
743
        self.ui.add_log_line(msg)
 
671
746
ui = UserInterface()
 
674
749
except KeyboardInterrupt:
 
677
 
    ui.log_message(unicode(e))
 
 
750
    with warnings.catch_warnings():
 
 
751
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
754
    with warnings.catch_warnings():
 
 
755
        warnings.filterwarnings("ignore", "", BytesWarning)