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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, print_function,
 
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from __future__ import division, absolute_import, with_statement
 
 
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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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# 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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# 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.
 
40
 
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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class MandosClientPropertyCache(object):
 
 
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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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    """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!
 
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#        super(MandosClientPropertyCache, self).__init__(
 
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    def property_changed(self, property=None, value=None):
 
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        """This is called whenever we get a PropertyChanged signal
 
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        It updates the changed property in the "properties" dict.
 
 
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    def __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
 
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        self.properties[property] = value
 
 
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        if interface == client_interface:
 
 
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            self.properties.update(properties)
 
 
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        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,
 
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                 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"")
 
 
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        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("")
 
 
149
        super(MandosClientWidget, self).__init__(**kwargs)
 
115
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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()
 
145
 
                                         self.properties["interval"]))
 
146
 
        if self.last_checker_failed:
 
147
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
 
153
        self.match_objects = (
 
 
154
            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.
 
 
180
        if flag and self._update_timer_callback_tag is None:
 
 
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            # Will update the shown timer value every second
 
 
182
            self._update_timer_callback_tag = (
 
 
183
                GLib.timeout_add(1000,
 
 
184
                                 glib_safely(self.update_timer)))
 
 
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        elif not (flag or self._update_timer_callback_tag is None):
 
 
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            GLib.source_remove(self._update_timer_callback_tag)
 
 
187
            self._update_timer_callback_tag = None
 
151
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    def checker_completed(self, exitstatus, condition, command):
 
152
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        if exitstatus == 0:
 
153
 
            if self.last_checker_failed:
 
154
 
                self.last_checker_failed = False
 
155
 
                gobject.source_remove(self._update_timer_callback_tag)
 
156
 
                self._update_timer_callback_tag = None
 
157
 
            self.logger(u'Checker for client %s (command "%s")'
 
159
 
                        % (self.properties[u"name"], command))
 
 
191
            log.debug('Checker for client %s (command "%s")'
 
 
192
                      " succeeded", self.properties["Name"], command)
 
163
 
        if not self.last_checker_failed:
 
164
 
            self.last_checker_failed = True
 
165
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
168
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        if os.WIFEXITED(condition):
 
169
 
            self.logger(u'Checker for client %s (command "%s")'
 
170
 
                        u' failed with exit code %s'
 
171
 
                        % (self.properties[u"name"], command,
 
172
 
                           os.WEXITSTATUS(condition)))
 
 
197
            log.info('Checker for client %s (command "%s") failed'
 
 
198
                     " with exit code %d", self.properties["Name"],
 
 
199
                     command, os.WEXITSTATUS(condition))
 
173
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        elif os.WIFSIGNALED(condition):
 
174
 
            self.logger(u'Checker for client %s (command "%s")'
 
175
 
                        u' was killed by signal %s'
 
176
 
                        % (self.properties[u"name"], command,
 
177
 
                           os.WTERMSIG(condition)))
 
178
 
        elif os.WCOREDUMP(condition):
 
179
 
            self.logger(u'Checker for client %s (command "%s")'
 
181
 
                        % (self.properties[u"name"], command))
 
183
 
            self.logger(u'Checker for client %s completed mysteriously')
 
 
201
            log.info('Checker for client %s (command "%s") was'
 
 
202
                     " killed by signal %d", self.properties["Name"],
 
 
203
                     command, os.WTERMSIG(condition))
 
186
206
    def checker_started(self, command):
 
187
 
        #self.logger(u'Client %s started checker "%s"'
 
188
 
        #            % (self.properties[u"name"], unicode(command)))
 
 
207
        """Server signals that a checker started."""
 
 
208
        log.debug('Client %s started checker "%s"',
 
 
209
                  self.properties["Name"], command)
 
191
211
    def got_secret(self):
 
192
 
        self.logger(u'Client %s received its secret'
 
193
 
                    % self.properties[u"name"])
 
 
212
        log.info("Client %s received its secret",
 
 
213
                 self.properties["Name"])
 
195
215
    def need_approval(self, timeout, default):
 
197
 
            message = u'Client %s needs approval within %s seconds'
 
 
217
            message = "Client %s needs approval within %f seconds"
 
199
 
            message = u'Client %s will get its secret in %s seconds'
 
201
 
                    % (self.properties[u"name"], timeout/1000))
 
 
219
            message = "Client %s will get its secret in %f seconds"
 
 
220
        log.info(message, self.properties["Name"], timeout/1000)
 
203
222
    def rejected(self, reason):
 
204
 
        self.logger(u'Client %s was rejected; reason: %s'
 
205
 
                    % (self.properties[u"name"], reason))
 
 
223
        log.info("Client %s was rejected; reason: %s",
 
 
224
                 self.properties["Name"], reason)
 
207
226
    def selectable(self):
 
208
227
        """Make this a "selectable" widget.
 
209
228
        This overrides the method from urwid.FlowWidget."""
 
212
 
    def rows(self, (maxcol,), focus=False):
 
 
231
    def rows(self, maxcolrow, focus=False):
 
213
232
        """How many rows this widget will occupy might depend on
 
214
233
        whether we have focus or not.
 
215
234
        This overrides the method from urwid.FlowWidget"""
 
216
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
 
235
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
218
237
    def current_widget(self, focus=False):
 
219
238
        if focus or self.opened:
 
220
239
            return self._focus_widget
 
221
240
        return self._widget
 
223
242
    def update(self):
 
224
243
        "Called when what is visible on the screen should be updated."
 
225
244
        # How to add standout mode to a style
 
226
 
        with_standout = { u"normal": u"standout",
 
227
 
                          u"bold": u"bold-standout",
 
229
 
                              u"underline-blink-standout",
 
230
 
                          u"bold-underline-blink":
 
231
 
                              u"bold-underline-blink-standout",
 
 
245
        with_standout = {"normal": "standout",
 
 
246
                         "bold": "bold-standout",
 
 
248
                         "underline-blink-standout",
 
 
249
                         "bold-underline-blink":
 
 
250
                         "bold-underline-blink-standout",
 
234
253
        # Rebuild focus and non-focus widgets using current properties
 
236
255
        # Base part of a client. Name!
 
237
 
        base = (u'%(name)s: '
 
238
 
                      % {u"name": self.properties[u"name"]})
 
239
 
        if not self.properties[u"enabled"]:
 
240
 
            message = u"DISABLED"
 
241
 
        elif self.last_checker_failed:
 
242
 
            timeout = datetime.timedelta(milliseconds
 
243
 
                                         = self.properties[u"timeout"])
 
244
 
            last_ok = isoformat_to_datetime(
 
245
 
                max((self.properties["last_checked_ok"]
 
246
 
                     or self.properties["created"]),
 
247
 
                    self.properties[u"last_enabled"]))
 
248
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
 
256
        base = "{name}: ".format(name=self.properties["Name"])
 
 
257
        if not self.properties["Enabled"]:
 
 
259
            self.using_timer(False)
 
 
260
        elif self.properties["ApprovalPending"]:
 
 
261
            timeout = datetime.timedelta(
 
 
262
                milliseconds=self.properties["ApprovalDelay"])
 
 
263
            last_approval_request = isoformat_to_datetime(
 
 
264
                self.properties["LastApprovalRequest"])
 
 
265
            if last_approval_request is not None:
 
 
266
                timer = max(timeout - (datetime.datetime.utcnow()
 
 
267
                                       - last_approval_request),
 
 
268
                            datetime.timedelta())
 
 
270
                timer = datetime.timedelta()
 
 
271
            if self.properties["ApprovedByDefault"]:
 
 
272
                message = "Approval in {}. (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
 
 
279
            expires = self.properties["Expires"]
 
 
281
                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)
 
 
293
            self.using_timer(False)
 
 
294
        self._text = "{}{}".format(base, message)
 
250
 
            message = (u'A checker has failed! Time until client gets diabled: %s'
 
252
 
        elif self.properties[u"approved_pending"]:
 
253
 
            if self.properties[u"approved_by_default"]:
 
254
 
                message = u"Connection established to client. (d)eny?"
 
256
 
                message = u"Seeks approval to send secret. (a)pprove?"
 
259
 
        self._text = "%s%s" % (base, message)
 
261
296
        if not urwid.supports_unicode():
 
262
297
            self._text = self._text.encode("ascii", "replace")
 
263
 
        textlist = [(u"normal", self._text)]
 
 
298
        textlist = [("normal", self._text)]
 
264
299
        self._text_widget.set_text(textlist)
 
265
300
        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
273
308
        # Run update hook, if any
 
274
309
        if self.update_hook is not None:
 
275
310
            self.update_hook()
 
277
312
    def update_timer(self):
 
 
313
        """called by GLib. Will indefinitely loop until
 
 
314
        GLib.source_remove() on tag is called
 
280
317
        return True             # Keep calling this
 
 
319
    def delete(self, **kwargs):
 
283
320
        if self._update_timer_callback_tag is not None:
 
284
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
321
            GLib.source_remove(self._update_timer_callback_tag)
 
285
322
            self._update_timer_callback_tag = None
 
 
323
        for match in self.match_objects:
 
 
325
        self.match_objects = ()
 
286
326
        if self.delete_hook is not None:
 
287
327
            self.delete_hook(self)
 
289
 
    def render(self, (maxcol,), focus=False):
 
 
328
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
330
    def render(self, maxcolrow, focus=False):
 
290
331
        """Render differently if we have focus.
 
291
332
        This overrides the method from urwid.FlowWidget"""
 
292
 
        return self.current_widget(focus).render((maxcol,),
 
 
333
        return self.current_widget(focus).render(maxcolrow,
 
295
 
    def keypress(self, (maxcol,), key):
 
 
336
    def keypress(self, maxcolrow, key):
 
297
338
        This overrides the method from urwid.FlowWidget"""
 
299
 
            self.proxy.Enable(dbus_interface = client_interface)
 
301
 
            self.proxy.Disable(dbus_interface = client_interface)
 
 
340
            self.proxy.Set(client_interface, "Enabled",
 
 
341
                           dbus.Boolean(True), ignore_reply=True,
 
 
342
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
344
            self.proxy.Set(client_interface, "Enabled", False,
 
 
346
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
303
348
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
304
 
                               dbus_interface = client_interface)
 
 
349
                               dbus_interface=client_interface,
 
306
352
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
307
 
                                  dbus_interface = client_interface)
 
308
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
 
353
                               dbus_interface=client_interface,
 
 
355
        elif key == "R" or key == "_" or key == "ctrl k":
 
309
356
            self.server_proxy_object.RemoveClient(self.proxy
 
312
 
            self.proxy.StartChecker(dbus_interface = client_interface)
 
314
 
            self.proxy.StopChecker(dbus_interface = client_interface)
 
316
 
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
 
360
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
361
                           dbus.Boolean(True), ignore_reply=True,
 
 
362
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
364
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
365
                           dbus.Boolean(False), ignore_reply=True,
 
 
366
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
368
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
318
 
#         elif key == u"p" or key == "=":
 
 
371
#         elif key == "p" or key == "=":
 
319
372
#             self.proxy.pause()
 
320
 
#         elif key == u"u" or key == ":":
 
 
373
#         elif key == "u" or key == ":":
 
321
374
#             self.proxy.unpause()
 
322
 
#         elif key == u"RET":
 
325
 
#            self.proxy.Approve(True)
 
327
 
#            self.proxy.Approve(False)
 
331
 
    def property_changed(self, property=None, value=None,
 
333
 
        """Call self.update() if old value is not new value.
 
 
380
    def properties_changed(self, interface, properties, invalidated):
 
 
381
        """Call self.update() if any properties changed.
 
334
382
        This overrides the method from MandosClientPropertyCache"""
 
335
 
        property_name = unicode(property)
 
336
 
        old_value = self.properties.get(property_name)
 
337
 
        super(MandosClientWidget, self).property_changed(
 
338
 
            property=property, value=value, *args, **kwargs)
 
339
 
        if self.properties.get(property_name) != old_value:
 
 
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):
 
 
392
def glib_safely(func, retval=True):
 
 
393
    def safe_func(*args, **kwargs):
 
 
395
            return func(*args, **kwargs)
 
343
402
class ConstrainedListBox(urwid.ListBox):
 
344
403
    """Like a normal urwid.ListBox, but will consume all "up" or
 
345
404
    "down" key presses, thus not allowing any containing widgets to
 
346
405
    use them as an excuse to shift focus away from this widget.
 
348
 
    def keypress(self, (maxcol, maxrow), key):
 
349
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
 
350
 
        if ret in (u"up", u"down"):
 
 
407
    def keypress(self, *args, **kwargs):
 
 
408
        ret = (super(ConstrainedListBox, self)
 
 
409
               .keypress(*args, **kwargs))
 
 
410
        if ret in ("up", "down"):
 
355
 
class UserInterface(object):
 
356
416
    """This is the entire user interface - the whole screen
 
357
417
    with boxes, lists of client widgets, etc.
 
359
419
    def __init__(self, max_log_length=1000):
 
360
420
        DBusGMainLoop(set_as_default=True)
 
362
422
        self.screen = urwid.curses_display.Screen()
 
364
424
        self.screen.register_palette((
 
366
 
                 u"default", u"default", None),
 
368
 
                 u"default", u"default", u"bold"),
 
370
 
                 u"default", u"default", u"underline"),
 
372
 
                 u"default", u"default", u"standout"),
 
373
 
                (u"bold-underline-blink",
 
374
 
                 u"default", u"default", (u"bold", u"underline")),
 
376
 
                 u"default", u"default", (u"bold", u"standout")),
 
377
 
                (u"underline-blink-standout",
 
378
 
                 u"default", u"default", (u"underline", u"standout")),
 
379
 
                (u"bold-underline-blink-standout",
 
380
 
                 u"default", u"default", (u"bold", u"underline",
 
 
426
                 "default", "default", None),
 
 
428
                 "bold", "default", "bold"),
 
 
430
                 "underline,blink", "default", "underline,blink"),
 
 
432
                 "standout", "default", "standout"),
 
 
433
                ("bold-underline-blink",
 
 
434
                 "bold,underline,blink", "default",
 
 
435
                 "bold,underline,blink"),
 
 
437
                 "bold,standout", "default", "bold,standout"),
 
 
438
                ("underline-blink-standout",
 
 
439
                 "underline,blink,standout", "default",
 
 
440
                 "underline,blink,standout"),
 
 
441
                ("bold-underline-blink-standout",
 
 
442
                 "bold,underline,blink,standout", "default",
 
 
443
                 "bold,underline,blink,standout"),
 
384
446
        if urwid.supports_unicode():
 
385
 
            self.divider = u"─" # \u2500
 
386
 
            #self.divider = u"━" # \u2501
 
 
447
            self.divider = "─"  # \u2500
 
388
 
            #self.divider = u"-" # \u002d
 
389
 
            self.divider = u"_" # \u005f
 
 
449
            self.divider = "_"  # \u005f
 
391
451
        self.screen.start()
 
393
453
        self.size = self.screen.get_cols_rows()
 
395
455
        self.clients = urwid.SimpleListWalker([])
 
396
456
        self.clients_dict = {}
 
398
458
        # We will add Text widgets to this list
 
 
459
        self.log = urwid.SimpleListWalker([])
 
400
460
        self.max_log_length = max_log_length
 
402
462
        # We keep a reference to the log widget so we can remove it
 
403
463
        # from the ListWalker without it getting destroyed
 
404
464
        self.logbox = ConstrainedListBox(self.log)
 
406
466
        # This keeps track of whether self.uilist currently has
 
407
467
        # self.logbox in it or not
 
408
468
        self.log_visible = True
 
409
 
        self.log_wrap = u"any"
 
 
469
        self.log_wrap = "any"
 
 
471
        self.loghandler = UILogHandler(self)
 
412
 
        self.log_message_raw((u"bold",
 
413
 
                              u"Mandos Monitor version " + version))
 
414
 
        self.log_message_raw((u"bold",
 
417
 
        self.busname = domain + '.Mandos'
 
418
 
        self.main_loop = gobject.MainLoop()
 
419
 
        self.bus = dbus.SystemBus()
 
420
 
        mandos_dbus_objc = self.bus.get_object(
 
421
 
            self.busname, u"/", follow_name_owner_changes=True)
 
422
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
426
 
            mandos_clients = (self.mandos_serv
 
427
 
                              .GetAllClientsWithProperties())
 
428
 
        except dbus.exceptions.DBusException:
 
429
 
            mandos_clients = dbus.Dictionary()
 
432
 
         .connect_to_signal(u"ClientRemoved",
 
433
 
                            self.find_and_remove_client,
 
434
 
                            dbus_interface=server_interface,
 
437
 
         .connect_to_signal(u"ClientAdded",
 
439
 
                            dbus_interface=server_interface,
 
442
 
         .connect_to_signal(u"ClientNotFound",
 
443
 
                            self.client_not_found,
 
444
 
                            dbus_interface=server_interface,
 
446
 
        for path, client in mandos_clients.iteritems():
 
447
 
            client_proxy_object = self.bus.get_object(self.busname,
 
449
 
            self.add_client(MandosClientWidget(server_proxy_object
 
452
 
                                               =client_proxy_object,
 
462
 
    def client_not_found(self, fingerprint, address):
 
463
 
        self.log_message((u"Client with address %s and fingerprint %s"
 
464
 
                          u" could not be found" % (address,
 
 
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)
 
467
485
    def rebuild(self):
 
468
486
        """This rebuilds the User Interface.
 
469
487
        Call this when the widget layout needs to change"""
 
471
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
472
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
473
 
                                       #header=urwid.Divider(),
 
 
489
        # self.uilist.append(urwid.ListBox(self.clients))
 
 
490
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
 
492
                                       # header=urwid.Divider(),
 
475
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
 
494
                                       footer=urwid.Divider(
 
 
495
                                           div_char=self.divider)))
 
476
496
        if self.log_visible:
 
477
497
            self.uilist.append(self.logbox)
 
479
498
        self.topwidget = urwid.Pile(self.uilist)
 
481
 
    def log_message(self, message):
 
482
 
        timestamp = datetime.datetime.now().isoformat()
 
483
 
        self.log_message_raw(timestamp + u": " + message)
 
485
 
    def log_message_raw(self, markup):
 
486
 
        """Add a log message to the log buffer."""
 
 
500
    def add_log_line(self, markup):
 
487
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
488
 
        if (self.max_log_length
 
489
 
            and len(self.log) > self.max_log_length):
 
490
 
            del self.log[0:len(self.log)-self.max_log_length-1]
 
491
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
492
 
                              coming_from=u"above")
 
 
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,
 
495
509
    def toggle_log_display(self):
 
496
510
        """Toggle visibility of the log buffer."""
 
497
511
        self.log_visible = not self.log_visible
 
499
 
        self.log_message(u"Log visibility changed to: "
 
500
 
                         + unicode(self.log_visible))
 
 
513
        log.debug("Log visibility changed to: %s", self.log_visible)
 
502
515
    def change_log_display(self):
 
503
516
        """Change type of log display.
 
504
517
        Currently, this toggles wrapping of text lines."""
 
505
 
        if self.log_wrap == u"clip":
 
506
 
            self.log_wrap = u"any"
 
 
518
        if self.log_wrap == "clip":
 
 
519
            self.log_wrap = "any"
 
508
 
            self.log_wrap = u"clip"
 
 
521
            self.log_wrap = "clip"
 
509
522
        for textwidget in self.log:
 
510
523
            textwidget.set_wrap_mode(self.log_wrap)
 
511
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
513
 
    def find_and_remove_client(self, path, name):
 
514
 
        """Find an client from its object path and remove it.
 
516
 
        This is connected to the ClientRemoved signal from the
 
 
524
        log.debug("Wrap mode: %s", self.log_wrap)
 
 
526
    def find_and_remove_client(self, path, interfaces):
 
 
527
        """Find a client by its object path and remove it.
 
 
529
        This is connected to the InterfacesRemoved signal from the
 
517
530
        Mandos server object."""
 
 
531
        if client_interface not in interfaces:
 
 
532
            # Not a Mandos client object; ignore
 
519
535
            client = self.clients_dict[path]
 
523
 
        self.remove_client(client, path)
 
525
 
    def add_new_client(self, path):
 
 
538
            log.warning("Unknown client %s removed", path)
 
 
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
 
526
551
        client_proxy_object = self.bus.get_object(self.busname, path)
 
527
 
        self.add_client(MandosClientWidget(server_proxy_object
 
530
 
                                           =client_proxy_object,
 
 
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])),
 
539
560
    def add_client(self, client, path=None):
 
540
561
        self.clients.append(client)
 
542
563
            path = client.proxy.object_path
 
543
564
        self.clients_dict[path] = client
 
544
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
 
565
        self.clients.sort(key=lambda c: c.properties["Name"])
 
547
568
    def remove_client(self, client, path=None):
 
548
569
        self.clients.remove(client)
 
550
571
            path = client.proxy.object_path
 
551
572
        del self.clients_dict[path]
 
552
 
        if not self.clients_dict:
 
553
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
554
 
            # is completely emptied, we need to recreate it.
 
555
 
            self.clients = urwid.SimpleListWalker([])
 
559
575
    def refresh(self):
 
560
576
        """Redraw the screen"""
 
561
577
        canvas = self.topwidget.render(self.size, focus=True)
 
562
578
        self.screen.draw_screen(self.size, canvas)
 
565
581
        """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
        self.bus = dbus.SystemBus()
 
 
588
        mandos_dbus_objc = self.bus.get_object(
 
 
589
            self.busname, "/", follow_name_owner_changes=True)
 
 
590
        self.mandos_serv = dbus.Interface(
 
 
591
            mandos_dbus_objc, dbus_interface=server_interface)
 
 
593
            mandos_clients = (self.mandos_serv
 
 
594
                              .GetAllClientsWithProperties())
 
 
595
            if not mandos_clients:
 
 
596
                log.warning("Note: Server has no clients.")
 
 
597
        except dbus.exceptions.DBusException:
 
 
598
            log.warning("Note: No Mandos server running.")
 
 
599
            mandos_clients = dbus.Dictionary()
 
 
602
         .connect_to_signal("InterfacesRemoved",
 
 
603
                            self.find_and_remove_client,
 
 
604
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
607
         .connect_to_signal("InterfacesAdded",
 
 
609
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
612
         .connect_to_signal("ClientNotFound",
 
 
613
                            self.client_not_found,
 
 
614
                            dbus_interface=server_interface,
 
 
616
        for path, client in mandos_clients.items():
 
 
617
            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),
 
567
 
        self._input_callback_tag = (gobject.io_add_watch
 
 
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)))
 
571
633
        self.main_loop.run()
 
572
634
        # Main loop has finished, we should close everything now
 
573
 
        gobject.source_remove(self._input_callback_tag)
 
 
635
        GLib.source_remove(self._input_callback_tag)
 
 
636
        with warnings.catch_warnings():
 
 
637
            warnings.simplefilter("ignore", BytesWarning)
 
577
641
        self.main_loop.quit()
 
 
642
        log.removeHandler(self.loghandler)
 
 
643
        log.propagate = self.orig_log_propagate
 
579
645
    def process_input(self, source, condition):
 
580
646
        keys = self.screen.get_input()
 
581
 
        translations = { u"ctrl n": u"down",      # Emacs
 
582
 
                         u"ctrl p": u"up",        # Emacs
 
583
 
                         u"ctrl v": u"page down", # Emacs
 
584
 
                         u"meta v": u"page up",   # Emacs
 
585
 
                         u" ": u"page down",      # less
 
586
 
                         u"f": u"page down",      # less
 
587
 
                         u"b": u"page up",        # less
 
 
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
 
593
659
                key = translations[key]
 
594
660
            except KeyError:    # :-)
 
597
 
            if key == u"q" or key == u"Q":
 
 
663
            if key == "q" or key == "Q":
 
600
 
            elif key == u"window resize":
 
 
666
            elif key == "window resize":
 
601
667
                self.size = self.screen.get_cols_rows()
 
603
 
            elif key == u"\f":  # Ctrl-L
 
 
669
            elif key == "ctrl l":
 
605
 
            elif key == u"l" or key == u"D":
 
 
672
            elif key == "l" or key == "D":
 
606
673
                self.toggle_log_display()
 
608
 
            elif key == u"w" or key == u"i":
 
 
675
            elif key == "w" or key == "i":
 
609
676
                self.change_log_display()
 
611
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
 
678
            elif key == "?" or key == "f1" or key == "esc":
 
612
679
                if not self.log_visible:
 
613
680
                    self.log_visible = True
 
615
 
                self.log_message_raw((u"bold",
 
619
 
                                            u"l: Log window toggle",
 
620
 
                                            u"TAB: Switch window",
 
622
 
                self.log_message_raw((u"bold",
 
628
 
                                             u"s: Start new checker",
 
 
682
                self.add_log_line(("bold",
 
 
685
                                              "l: Log window toggle",
 
 
686
                                              "TAB: Switch window",
 
 
687
                                              "w: Wrap (log lines)",
 
 
688
                                              "v: Toggle verbose log",
 
 
690
                self.add_log_line(("bold",
 
 
691
                                   "  ".join(("Clients:",
 
 
695
                                              "s: Start new checker",
 
635
703
                if self.topwidget.get_focus() is self.logbox:
 
636
704
                    self.topwidget.set_focus(0)
 
638
706
                    self.topwidget.set_focus(self.logbox)
 
640
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
642
 
            #    pass            # xxx end-of-buffer
 
643
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
645
 
            #    pass            # xxx beginning-of-buffer
 
646
 
            #elif key == u"ctrl e" or key == u"$":
 
647
 
            #    pass            # xxx move-end-of-line
 
648
 
            #elif key == u"ctrl a" or key == u"^":
 
649
 
            #    pass            # xxx move-beginning-of-line
 
650
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
652
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
655
 
            #    pass            # scroll up log
 
657
 
            #    pass            # scroll down log
 
 
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
 
658
733
            elif self.topwidget.selectable():
 
659
734
                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)
 
663
752
ui = UserInterface()
 
667
 
    ui.log_message(unicode(e))
 
 
755
except KeyboardInterrupt:
 
 
756
    with warnings.catch_warnings():
 
 
757
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
760
    with warnings.catch_warnings():
 
 
761
        warnings.filterwarnings("ignore", "", BytesWarning)