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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 © 2009,2010 Teddy Hogeborn
 
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# Copyright © 2009,2010 Björn Påhlsson
 
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# This program is free software: you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
 
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# 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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#     This program is distributed in the hope that it will be useful,
 
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#     but WITHOUT ANY WARRANTY; without even the implied warranty of
 
 
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#     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 this program.  If not, see <http://www.gnu.org/licenses/>.
 
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# Contact the authors at <mandos@fukt.bsnet.se>.
 
 
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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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if sys.version_info.major == 2:
 
 
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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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domain = 'se.recompile'
 
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server_interface = domain + '.Mandos'
 
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client_interface = domain + '.Mandos.Client'
 
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# Always run in monochrome mode
 
57
 
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.
 
61
 
urwid.curses_display.curses.A_UNDERLINE |= (
 
62
 
    urwid.curses_display.curses.A_BLINK)
 
 
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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!
 
99
 
#        super(MandosClientPropertyCache, self).__init__(
 
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    def property_changed(self, property=None, value=None):
 
103
 
        """This is called whenever we get a PropertyChanged signal
 
104
 
        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)
 
 
108
    def properties_changed(self, interface, properties, invalidated):
 
 
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        """This is called whenever we get a PropertiesChanged signal
 
 
110
        It updates the changed properties in the "properties" dict.
 
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        # Update properties dict with new value
 
107
 
        self.properties[property] = value
 
 
113
        if interface == client_interface:
 
 
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            self.properties.update(properties)
 
 
117
        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, logger=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.server_proxy_object = server_proxy_object
 
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        self.logger = logger
 
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        self._update_timer_callback_tag = None
 
126
 
        self._update_timer_callback_lock = 0
 
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        self.last_checker_failed = False
 
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        # The widget shown normally
 
130
 
        self._text_widget = urwid.Text(u"")
 
 
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        self._text_widget = urwid.Text("")
 
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        # The widget shown when we have focus
 
132
 
        self._focus_text_widget = urwid.Text(u"")
 
133
 
        super(MandosClientWidget, self).__init__(
 
134
 
            update_hook=update_hook, delete_hook=delete_hook,
 
 
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        self._focus_text_widget = urwid.Text("")
 
 
141
        super(MandosClientWidget, self).__init__(**kwargs)
 
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        self.opened = False
 
139
 
        last_checked_ok = isoformat_to_datetime(self.properties
 
141
 
        if last_checked_ok is None:
 
142
 
            self.last_checker_failed = True
 
144
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
151
 
        if self.last_checker_failed:
 
152
 
            self.using_timer(True)
 
154
 
        if self.need_approval:
 
155
 
            self.using_timer(True)
 
157
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
158
 
                                     self.checker_completed,
 
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        self.proxy.connect_to_signal(u"CheckerStarted",
 
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                                     self.checker_started,
 
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        self.proxy.connect_to_signal(u"GotSecret",
 
169
 
        self.proxy.connect_to_signal(u"NeedApproval",
 
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        self.proxy.connect_to_signal(u"Rejected",
 
178
 
    def property_changed(self, property=None, value=None):
 
179
 
        super(self, MandosClientWidget).property_changed(property,
 
181
 
        if property == u"ApprovalPending":
 
182
 
            using_timer(bool(value))
 
 
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        self.match_objects = (
 
 
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            self.proxy.connect_to_signal("CheckerCompleted",
 
 
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                                         self.checker_completed,
 
 
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            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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        self.logger('Created client {}'
 
 
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                    .format(self.properties["Name"]), level=0)
 
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    def using_timer(self, flag):
 
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        """Call this method with True or False when timer should be
 
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        activated or deactivated.
 
188
 
        old = self._update_timer_callback_lock
 
190
 
            self._update_timer_callback_lock += 1
 
192
 
            self._update_timer_callback_lock -= 1
 
193
 
        if old == 0 and self._update_timer_callback_lock:
 
194
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
 
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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
 
 
175
            self._update_timer_callback_tag = (GLib.timeout_add
 
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                                                self.update_timer))
 
197
 
        elif old and self._update_timer_callback_lock == 0:
 
198
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
178
        elif not (flag or self._update_timer_callback_tag is None):
 
 
179
            GLib.source_remove(self._update_timer_callback_tag)
 
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            self._update_timer_callback_tag = None
 
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    def checker_completed(self, exitstatus, condition, command):
 
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        if exitstatus == 0:
 
203
 
            if self.last_checker_failed:
 
204
 
                self.last_checker_failed = False
 
205
 
                self.using_timer(False)
 
206
 
            #self.logger(u'Checker for client %s (command "%s")'
 
208
 
            #            % (self.properties[u"Name"], command))
 
 
184
            self.logger('Checker for client {} (command "{}")'
 
 
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                        ' succeeded'.format(self.properties["Name"],
 
212
 
        if not self.last_checker_failed:
 
213
 
            self.last_checker_failed = True
 
214
 
            self.using_timer(True)
 
215
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        if os.WIFEXITED(condition):
 
216
 
            self.logger(u'Checker for client %s (command "%s")'
 
217
 
                        u' failed with exit code %s'
 
218
 
                        % (self.properties[u"Name"], command,
 
219
 
                           os.WEXITSTATUS(condition)))
 
 
191
            self.logger('Checker for client {} (command "{}") failed'
 
 
193
                        .format(self.properties["Name"], command,
 
 
194
                                os.WEXITSTATUS(condition)))
 
220
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        elif os.WIFSIGNALED(condition):
 
221
 
            self.logger(u'Checker for client %s (command "%s")'
 
222
 
                        u' was killed by signal %s'
 
223
 
                        % (self.properties[u"Name"], command,
 
224
 
                           os.WTERMSIG(condition)))
 
225
 
        elif os.WCOREDUMP(condition):
 
226
 
            self.logger(u'Checker for client %s (command "%s")'
 
228
 
                        % (self.properties[u"Name"], command))
 
230
 
            self.logger(u'Checker for client %s completed'
 
 
196
            self.logger('Checker for client {} (command "{}") was'
 
 
197
                        ' killed by signal {}'
 
 
198
                        .format(self.properties["Name"], command,
 
 
199
                                os.WTERMSIG(condition)))
 
234
202
    def checker_started(self, command):
 
235
 
        #self.logger(u'Client %s started checker "%s"'
 
236
 
        #            % (self.properties[u"Name"], unicode(command)))
 
 
203
        """Server signals that a checker started."""
 
 
204
        self.logger('Client {} started checker "{}"'
 
 
205
                    .format(self.properties["Name"],
 
239
208
    def got_secret(self):
 
240
 
        self.last_checker_failed = False
 
241
 
        self.logger(u'Client %s received its secret'
 
242
 
                    % self.properties[u"Name"])
 
 
209
        self.logger('Client {} received its secret'
 
 
210
                    .format(self.properties["Name"]))
 
244
212
    def need_approval(self, timeout, default):
 
246
 
            message = u'Client %s needs approval within %s seconds'
 
 
214
            message = 'Client {} needs approval within {} seconds'
 
248
 
            message = u'Client %s will get its secret in %s seconds'
 
250
 
                    % (self.properties[u"Name"], timeout/1000))
 
251
 
        self.using_timer(True)
 
 
216
            message = 'Client {} will get its secret in {} seconds'
 
 
217
        self.logger(message.format(self.properties["Name"],
 
253
220
    def rejected(self, reason):
 
254
 
        self.logger(u'Client %s was rejected; reason: %s'
 
255
 
                    % (self.properties[u"Name"], reason))
 
 
221
        self.logger('Client {} was rejected; reason: {}'
 
 
222
                    .format(self.properties["Name"], reason))
 
257
224
    def selectable(self):
 
258
225
        """Make this a "selectable" widget.
 
259
226
        This overrides the method from urwid.FlowWidget."""
 
262
 
    def rows(self, (maxcol,), focus=False):
 
 
229
    def rows(self, maxcolrow, focus=False):
 
263
230
        """How many rows this widget will occupy might depend on
 
264
231
        whether we have focus or not.
 
265
232
        This overrides the method from urwid.FlowWidget"""
 
266
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
 
233
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
268
235
    def current_widget(self, focus=False):
 
269
236
        if focus or self.opened:
 
270
237
            return self._focus_widget
 
271
238
        return self._widget
 
273
240
    def update(self):
 
274
241
        "Called when what is visible on the screen should be updated."
 
275
242
        # How to add standout mode to a style
 
276
 
        with_standout = { u"normal": u"standout",
 
277
 
                          u"bold": u"bold-standout",
 
279
 
                              u"underline-blink-standout",
 
280
 
                          u"bold-underline-blink":
 
281
 
                              u"bold-underline-blink-standout",
 
 
243
        with_standout = {"normal": "standout",
 
 
244
                         "bold": "bold-standout",
 
 
246
                         "underline-blink-standout",
 
 
247
                         "bold-underline-blink":
 
 
248
                         "bold-underline-blink-standout",
 
284
251
        # Rebuild focus and non-focus widgets using current properties
 
286
253
        # Base part of a client. Name!
 
287
 
        base = (u'%(name)s: '
 
288
 
                      % {u"name": self.properties[u"Name"]})
 
289
 
        if not self.properties[u"Enabled"]:
 
290
 
            message = u"DISABLED"
 
291
 
        elif self.properties[u"ApprovalPending"]:
 
292
 
            timeout = datetime.timedelta(milliseconds
 
 
254
        base = '{name}: '.format(name=self.properties["Name"])
 
 
255
        if not self.properties["Enabled"]:
 
 
257
            self.using_timer(False)
 
 
258
        elif self.properties["ApprovalPending"]:
 
 
259
            timeout = datetime.timedelta(
 
 
260
                milliseconds=self.properties["ApprovalDelay"])
 
295
261
            last_approval_request = isoformat_to_datetime(
 
296
 
                self.properties[u"LastApprovalRequest"])
 
 
262
                self.properties["LastApprovalRequest"])
 
297
263
            if last_approval_request is not None:
 
298
 
                timer = timeout - (datetime.datetime.utcnow()
 
299
 
                                   - last_approval_request)
 
 
264
                timer = max(timeout - (datetime.datetime.utcnow()
 
 
265
                                       - last_approval_request),
 
 
266
                            datetime.timedelta())
 
301
268
                timer = datetime.timedelta()
 
302
 
            if self.properties[u"ApprovedByDefault"]:
 
303
 
                message = u"Approval in %s. (d)eny?"
 
305
 
                message = u"Denial in %s. (a)pprove?"
 
306
 
            message = message % unicode(timer).rsplit(".", 1)[0]
 
307
 
        elif self.last_checker_failed:
 
308
 
            timeout = datetime.timedelta(milliseconds
 
311
 
            last_ok = isoformat_to_datetime(
 
312
 
                max((self.properties[u"LastCheckedOK"]
 
313
 
                     or self.properties[u"Created"]),
 
314
 
                    self.properties[u"LastEnabled"]))
 
315
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
316
 
            message = (u'A checker has failed! Time until client'
 
317
 
                       u' gets disabled: %s'
 
318
 
                           % unicode(timer).rsplit(".", 1)[0])
 
 
269
            if self.properties["ApprovedByDefault"]:
 
 
270
                message = "Approval in {}. (d)eny?"
 
 
272
                message = "Denial in {}. (a)pprove?"
 
 
273
            message = message.format(str(timer).rsplit(".", 1)[0])
 
 
274
            self.using_timer(True)
 
 
275
        elif self.properties["LastCheckerStatus"] != 0:
 
 
276
            # When checker has failed, show timer until client expires
 
 
277
            expires = self.properties["Expires"]
 
 
279
                timer = datetime.timedelta(0)
 
 
281
                expires = (datetime.datetime.strptime
 
 
282
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
 
283
                timer = max(expires - datetime.datetime.utcnow(),
 
 
284
                            datetime.timedelta())
 
 
285
            message = ('A checker has failed! Time until client'
 
 
287
                       .format(str(timer).rsplit(".", 1)[0]))
 
 
288
            self.using_timer(True)
 
321
 
        self._text = "%s%s" % (base, message)
 
 
291
            self.using_timer(False)
 
 
292
        self._text = "{}{}".format(base, message)
 
323
294
        if not urwid.supports_unicode():
 
324
295
            self._text = self._text.encode("ascii", "replace")
 
325
 
        textlist = [(u"normal", self._text)]
 
 
296
        textlist = [("normal", self._text)]
 
326
297
        self._text_widget.set_text(textlist)
 
327
298
        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
335
306
        # Run update hook, if any
 
336
307
        if self.update_hook is not None:
 
337
308
            self.update_hook()
 
339
310
    def update_timer(self):
 
 
311
        """called by GLib. Will indefinitely loop until
 
 
312
        GLib.source_remove() on tag is called
 
342
315
        return True             # Keep calling this
 
 
317
    def delete(self, **kwargs):
 
345
318
        if self._update_timer_callback_tag is not None:
 
346
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
319
            GLib.source_remove(self._update_timer_callback_tag)
 
347
320
            self._update_timer_callback_tag = None
 
 
321
        for match in self.match_objects:
 
 
323
        self.match_objects = ()
 
348
324
        if self.delete_hook is not None:
 
349
325
            self.delete_hook(self)
 
351
 
    def render(self, (maxcol,), focus=False):
 
 
326
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
328
    def render(self, maxcolrow, focus=False):
 
352
329
        """Render differently if we have focus.
 
353
330
        This overrides the method from urwid.FlowWidget"""
 
354
 
        return self.current_widget(focus).render((maxcol,),
 
 
331
        return self.current_widget(focus).render(maxcolrow,
 
357
 
    def keypress(self, (maxcol,), key):
 
 
334
    def keypress(self, maxcolrow, key):
 
359
336
        This overrides the method from urwid.FlowWidget"""
 
361
 
            self.proxy.Enable(dbus_interface = client_interface)
 
363
 
            self.proxy.Disable(dbus_interface = client_interface)
 
 
338
            self.proxy.Set(client_interface, "Enabled",
 
 
339
                           dbus.Boolean(True), ignore_reply=True,
 
 
340
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
342
            self.proxy.Set(client_interface, "Enabled", False,
 
 
344
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
365
346
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
366
 
                               dbus_interface = client_interface)
 
 
347
                               dbus_interface=client_interface,
 
368
350
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
369
 
                                  dbus_interface = client_interface)
 
370
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
 
351
                               dbus_interface=client_interface,
 
 
353
        elif key == "R" or key == "_" or key == "ctrl k":
 
371
354
            self.server_proxy_object.RemoveClient(self.proxy
 
374
 
            self.proxy.StartChecker(dbus_interface = client_interface)
 
376
 
            self.proxy.StopChecker(dbus_interface = client_interface)
 
378
 
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
 
358
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
359
                           dbus.Boolean(True), ignore_reply=True,
 
 
360
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
362
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
363
                           dbus.Boolean(False), ignore_reply=True,
 
 
364
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
366
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
380
 
#         elif key == u"p" or key == "=":
 
 
369
#         elif key == "p" or key == "=":
 
381
370
#             self.proxy.pause()
 
382
 
#         elif key == u"u" or key == ":":
 
 
371
#         elif key == "u" or key == ":":
 
383
372
#             self.proxy.unpause()
 
384
 
#         elif key == u"RET":
 
389
 
    def property_changed(self, property=None, value=None,
 
391
 
        """Call self.update() if old value is not new value.
 
 
378
    def properties_changed(self, interface, properties, invalidated):
 
 
379
        """Call self.update() if any properties changed.
 
392
380
        This overrides the method from MandosClientPropertyCache"""
 
393
 
        property_name = unicode(property)
 
394
 
        old_value = self.properties.get(property_name)
 
395
 
        super(MandosClientWidget, self).property_changed(
 
396
 
            property=property, value=value, *args, **kwargs)
 
397
 
        if self.properties.get(property_name) != old_value:
 
 
381
        old_values = {key: self.properties.get(key)
 
 
382
                      for key in properties.keys()}
 
 
383
        super(MandosClientWidget, self).properties_changed(
 
 
384
            interface, properties, invalidated)
 
 
385
        if any(old_values[key] != self.properties.get(key)
 
 
386
               for key in old_values):
 
 
415
404
    """This is the entire user interface - the whole screen
 
416
405
    with boxes, lists of client widgets, etc.
 
418
 
    def __init__(self, max_log_length=1000):
 
 
407
    def __init__(self, max_log_length=1000, log_level=1):
 
419
408
        DBusGMainLoop(set_as_default=True)
 
421
410
        self.screen = urwid.curses_display.Screen()
 
423
412
        self.screen.register_palette((
 
425
 
                 u"default", u"default", None),
 
427
 
                 u"default", u"default", u"bold"),
 
429
 
                 u"default", u"default", u"underline"),
 
431
 
                 u"default", u"default", u"standout"),
 
432
 
                (u"bold-underline-blink",
 
433
 
                 u"default", u"default", (u"bold", u"underline")),
 
435
 
                 u"default", u"default", (u"bold", u"standout")),
 
436
 
                (u"underline-blink-standout",
 
437
 
                 u"default", u"default", (u"underline", u"standout")),
 
438
 
                (u"bold-underline-blink-standout",
 
439
 
                 u"default", u"default", (u"bold", u"underline",
 
 
414
                 "default", "default", None),
 
 
416
                 "bold", "default", "bold"),
 
 
418
                 "underline,blink", "default", "underline,blink"),
 
 
420
                 "standout", "default", "standout"),
 
 
421
                ("bold-underline-blink",
 
 
422
                 "bold,underline,blink", "default",
 
 
423
                 "bold,underline,blink"),
 
 
425
                 "bold,standout", "default", "bold,standout"),
 
 
426
                ("underline-blink-standout",
 
 
427
                 "underline,blink,standout", "default",
 
 
428
                 "underline,blink,standout"),
 
 
429
                ("bold-underline-blink-standout",
 
 
430
                 "bold,underline,blink,standout", "default",
 
 
431
                 "bold,underline,blink,standout"),
 
443
434
        if urwid.supports_unicode():
 
444
 
            self.divider = u"─" # \u2500
 
445
 
            #self.divider = u"━" # \u2501
 
 
435
            self.divider = "─"  # \u2500
 
447
 
            #self.divider = u"-" # \u002d
 
448
 
            self.divider = u"_" # \u005f
 
 
437
            self.divider = "_"  # \u005f
 
450
439
        self.screen.start()
 
452
441
        self.size = self.screen.get_cols_rows()
 
454
443
        self.clients = urwid.SimpleListWalker([])
 
455
444
        self.clients_dict = {}
 
457
446
        # We will add Text widgets to this list
 
 
447
        self.log = urwid.SimpleListWalker([])
 
459
448
        self.max_log_length = max_log_length
 
 
450
        self.log_level = log_level
 
461
452
        # We keep a reference to the log widget so we can remove it
 
462
453
        # from the ListWalker without it getting destroyed
 
463
454
        self.logbox = ConstrainedListBox(self.log)
 
465
456
        # This keeps track of whether self.uilist currently has
 
466
457
        # self.logbox in it or not
 
467
458
        self.log_visible = True
 
468
 
        self.log_wrap = u"any"
 
 
459
        self.log_wrap = "any"
 
471
 
        self.log_message_raw((u"bold",
 
472
 
                              u"Mandos Monitor version " + version))
 
473
 
        self.log_message_raw((u"bold",
 
 
462
        self.log_message_raw(("bold",
 
 
463
                              "Mandos Monitor version " + version))
 
 
464
        self.log_message_raw(("bold",
 
476
467
        self.busname = domain + '.Mandos'
 
477
 
        self.main_loop = gobject.MainLoop()
 
478
 
        self.bus = dbus.SystemBus()
 
479
 
        mandos_dbus_objc = self.bus.get_object(
 
480
 
            self.busname, u"/", follow_name_owner_changes=True)
 
481
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
485
 
            mandos_clients = (self.mandos_serv
 
486
 
                              .GetAllClientsWithProperties())
 
487
 
        except dbus.exceptions.DBusException:
 
488
 
            mandos_clients = dbus.Dictionary()
 
491
 
         .connect_to_signal(u"ClientRemoved",
 
492
 
                            self.find_and_remove_client,
 
493
 
                            dbus_interface=server_interface,
 
496
 
         .connect_to_signal(u"ClientAdded",
 
498
 
                            dbus_interface=server_interface,
 
501
 
         .connect_to_signal(u"ClientNotFound",
 
502
 
                            self.client_not_found,
 
503
 
                            dbus_interface=server_interface,
 
505
 
        for path, client in mandos_clients.iteritems():
 
506
 
            client_proxy_object = self.bus.get_object(self.busname,
 
508
 
            self.add_client(MandosClientWidget(server_proxy_object
 
511
 
                                               =client_proxy_object,
 
521
 
    def client_not_found(self, fingerprint, address):
 
522
 
        self.log_message((u"Client with address %s and fingerprint %s"
 
523
 
                          u" could not be found" % (address,
 
 
468
        self.main_loop = GLib.MainLoop()
 
 
470
    def client_not_found(self, key_id, address):
 
 
471
        self.log_message("Client with address {} and key ID {} could"
 
 
472
                         " not be found".format(address, key_id))
 
526
474
    def rebuild(self):
 
527
475
        """This rebuilds the User Interface.
 
528
476
        Call this when the widget layout needs to change"""
 
530
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
 
478
        # self.uilist.append(urwid.ListBox(self.clients))
 
531
479
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
533
 
                                       #header=urwid.Divider(),
 
 
481
                                       # header=urwid.Divider(),
 
536
 
                                       urwid.Divider(div_char=
 
 
483
                                       footer=urwid.Divider(
 
 
484
                                           div_char=self.divider)))
 
538
485
        if self.log_visible:
 
539
486
            self.uilist.append(self.logbox)
 
541
487
        self.topwidget = urwid.Pile(self.uilist)
 
543
 
    def log_message(self, message):
 
 
489
    def log_message(self, message, level=1):
 
 
490
        """Log message formatted with timestamp"""
 
 
491
        if level < self.log_level:
 
544
493
        timestamp = datetime.datetime.now().isoformat()
 
545
 
        self.log_message_raw(timestamp + u": " + message)
 
547
 
    def log_message_raw(self, markup):
 
 
494
        self.log_message_raw("{}: {}".format(timestamp, message),
 
 
497
    def log_message_raw(self, markup, level=1):
 
548
498
        """Add a log message to the log buffer."""
 
 
499
        if level < self.log_level:
 
549
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
550
 
        if (self.max_log_length
 
551
 
            and len(self.log) > self.max_log_length):
 
552
 
            del self.log[0:len(self.log)-self.max_log_length-1]
 
553
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
554
 
                              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-1]
 
 
505
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
557
509
    def toggle_log_display(self):
 
558
510
        """Toggle visibility of the log buffer."""
 
559
511
        self.log_visible = not self.log_visible
 
561
 
        #self.log_message(u"Log visibility changed to: "
 
562
 
        #                 + unicode(self.log_visible))
 
 
513
        self.log_message("Log visibility changed to: {}"
 
 
514
                         .format(self.log_visible), level=0)
 
564
516
    def change_log_display(self):
 
565
517
        """Change type of log display.
 
566
518
        Currently, this toggles wrapping of text lines."""
 
567
 
        if self.log_wrap == u"clip":
 
568
 
            self.log_wrap = u"any"
 
 
519
        if self.log_wrap == "clip":
 
 
520
            self.log_wrap = "any"
 
570
 
            self.log_wrap = u"clip"
 
 
522
            self.log_wrap = "clip"
 
571
523
        for textwidget in self.log:
 
572
524
            textwidget.set_wrap_mode(self.log_wrap)
 
573
 
        #self.log_message(u"Wrap mode: " + self.log_wrap)
 
575
 
    def find_and_remove_client(self, path, name):
 
576
 
        """Find an client from its object path and remove it.
 
578
 
        This is connected to the ClientRemoved signal from the
 
 
525
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
 
528
    def find_and_remove_client(self, path, interfaces):
 
 
529
        """Find a client by its object path and remove it.
 
 
531
        This is connected to the InterfacesRemoved signal from the
 
579
532
        Mandos server object."""
 
 
533
        if client_interface not in interfaces:
 
 
534
            # Not a Mandos client object; ignore
 
581
537
            client = self.clients_dict[path]
 
585
 
        self.remove_client(client, path)
 
587
 
    def add_new_client(self, path):
 
 
540
            self.log_message("Unknown client {!r} removed"
 
 
545
    def add_new_client(self, path, ifs_and_props):
 
 
546
        """Find a client by its object path and remove it.
 
 
548
        This is connected to the InterfacesAdded signal from the
 
 
549
        Mandos server object.
 
 
551
        if client_interface not in ifs_and_props:
 
 
552
            # Not a Mandos client object; ignore
 
588
554
        client_proxy_object = self.bus.get_object(self.busname, path)
 
589
 
        self.add_client(MandosClientWidget(server_proxy_object
 
592
 
                                           =client_proxy_object,
 
 
555
        self.add_client(MandosClientWidget(
 
 
556
            server_proxy_object=self.mandos_serv,
 
 
557
            proxy_object=client_proxy_object,
 
 
558
            update_hook=self.refresh,
 
 
559
            delete_hook=self.remove_client,
 
 
560
            logger=self.log_message,
 
 
561
            properties=dict(ifs_and_props[client_interface])),
 
601
564
    def add_client(self, client, path=None):
 
602
565
        self.clients.append(client)
 
604
567
            path = client.proxy.object_path
 
605
568
        self.clients_dict[path] = client
 
606
 
        self.clients.sort(None, lambda c: c.properties[u"Name"])
 
 
569
        self.clients.sort(key=lambda c: c.properties["Name"])
 
609
572
    def remove_client(self, client, path=None):
 
610
573
        self.clients.remove(client)
 
612
575
            path = client.proxy.object_path
 
613
576
        del self.clients_dict[path]
 
614
 
        if not self.clients_dict:
 
615
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
616
 
            # is completely emptied, we need to recreate it.
 
617
 
            self.clients = urwid.SimpleListWalker([])
 
621
579
    def refresh(self):
 
622
580
        """Redraw the screen"""
 
623
581
        canvas = self.topwidget.render(self.size, focus=True)
 
624
582
        self.screen.draw_screen(self.size, canvas)
 
627
585
        """Start the main loop and exit when it's done."""
 
 
586
        self.bus = dbus.SystemBus()
 
 
587
        mandos_dbus_objc = self.bus.get_object(
 
 
588
            self.busname, "/", follow_name_owner_changes=True)
 
 
589
        self.mandos_serv = dbus.Interface(
 
 
590
            mandos_dbus_objc, dbus_interface=server_interface)
 
 
592
            mandos_clients = (self.mandos_serv
 
 
593
                              .GetAllClientsWithProperties())
 
 
594
            if not mandos_clients:
 
 
595
                self.log_message_raw(("bold",
 
 
596
                                      "Note: Server has no clients."))
 
 
597
        except dbus.exceptions.DBusException:
 
 
598
            self.log_message_raw(("bold",
 
 
599
                                  "Note: No Mandos server running."))
 
 
600
            mandos_clients = dbus.Dictionary()
 
 
603
         .connect_to_signal("InterfacesRemoved",
 
 
604
                            self.find_and_remove_client,
 
 
605
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
608
         .connect_to_signal("InterfacesAdded",
 
 
610
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
613
         .connect_to_signal("ClientNotFound",
 
 
614
                            self.client_not_found,
 
 
615
                            dbus_interface=server_interface,
 
 
617
        for path, client in mandos_clients.items():
 
 
618
            client_proxy_object = self.bus.get_object(self.busname,
 
 
620
            self.add_client(MandosClientWidget(
 
 
621
                server_proxy_object=self.mandos_serv,
 
 
622
                proxy_object=client_proxy_object,
 
 
624
                update_hook=self.refresh,
 
 
625
                delete_hook=self.remove_client,
 
 
626
                logger=self.log_message),
 
629
 
        self._input_callback_tag = (gobject.io_add_watch
 
 
630
        self._input_callback_tag = (
 
 
632
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
 
633
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
633
635
        self.main_loop.run()
 
634
636
        # Main loop has finished, we should close everything now
 
635
 
        gobject.source_remove(self._input_callback_tag)
 
 
637
        GLib.source_remove(self._input_callback_tag)
 
 
638
        with warnings.catch_warnings():
 
 
639
            warnings.simplefilter("ignore", BytesWarning)
 
639
643
        self.main_loop.quit()
 
641
645
    def process_input(self, source, condition):
 
642
646
        keys = self.screen.get_input()
 
643
 
        translations = { u"ctrl n": u"down",      # Emacs
 
644
 
                         u"ctrl p": u"up",        # Emacs
 
645
 
                         u"ctrl v": u"page down", # Emacs
 
646
 
                         u"meta v": u"page up",   # Emacs
 
647
 
                         u" ": u"page down",      # less
 
648
 
                         u"f": u"page down",      # less
 
649
 
                         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
 
655
659
                key = translations[key]
 
656
660
            except KeyError:    # :-)
 
659
 
            if key == u"q" or key == u"Q":
 
 
663
            if key == "q" or key == "Q":
 
662
 
            elif key == u"window resize":
 
 
666
            elif key == "window resize":
 
663
667
                self.size = self.screen.get_cols_rows()
 
665
 
            elif key == u"\f":  # Ctrl-L
 
 
669
            elif key == "ctrl l":
 
667
 
            elif key == u"l" or key == u"D":
 
 
672
            elif key == "l" or key == "D":
 
668
673
                self.toggle_log_display()
 
670
 
            elif key == u"w" or key == u"i":
 
 
675
            elif key == "w" or key == "i":
 
671
676
                self.change_log_display()
 
673
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
 
678
            elif key == "?" or key == "f1" or key == "esc":
 
674
679
                if not self.log_visible:
 
675
680
                    self.log_visible = True
 
677
 
                self.log_message_raw((u"bold",
 
681
 
                                            u"l: Log window toggle",
 
682
 
                                            u"TAB: Switch window",
 
684
 
                self.log_message_raw((u"bold",
 
690
 
                                             u"s: Start new checker",
 
 
682
                self.log_message_raw(("bold",
 
 
686
                                            "l: Log window toggle",
 
 
687
                                            "TAB: Switch window",
 
 
688
                                            "w: Wrap (log lines)",
 
 
689
                                            "v: Toggle verbose log",
 
 
691
                self.log_message_raw(("bold",
 
 
697
                                             "s: Start new checker",
 
697
704
                if self.topwidget.get_focus() is self.logbox:
 
698
705
                    self.topwidget.set_focus(0)
 
700
707
                    self.topwidget.set_focus(self.logbox)
 
702
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
704
 
            #    pass            # xxx end-of-buffer
 
705
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
707
 
            #    pass            # xxx beginning-of-buffer
 
708
 
            #elif key == u"ctrl e" or key == u"$":
 
709
 
            #    pass            # xxx move-end-of-line
 
710
 
            #elif key == u"ctrl a" or key == u"^":
 
711
 
            #    pass            # xxx move-beginning-of-line
 
712
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
714
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
717
 
            #    pass            # scroll up log
 
719
 
            #    pass            # scroll down log
 
 
710
                if self.log_level == 0:
 
 
712
                    self.log_message("Verbose mode: Off")
 
 
715
                    self.log_message("Verbose mode: On")
 
 
716
            # elif (key == "end" or key == "meta >" or key == "G"
 
 
718
            #     pass            # xxx end-of-buffer
 
 
719
            # elif (key == "home" or key == "meta <" or key == "g"
 
 
721
            #     pass            # xxx beginning-of-buffer
 
 
722
            # elif key == "ctrl e" or key == "$":
 
 
723
            #     pass            # xxx move-end-of-line
 
 
724
            # elif key == "ctrl a" or key == "^":
 
 
725
            #     pass            # xxx move-beginning-of-line
 
 
726
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
 
728
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
 
731
            #     pass            # scroll up log
 
 
733
            #     pass            # scroll down log
 
720
734
            elif self.topwidget.selectable():
 
721
735
                self.topwidget.keypress(self.size, key)
 
725
740
ui = UserInterface()
 
728
743
except KeyboardInterrupt:
 
731
 
    ui.log_message(unicode(e))
 
 
745
except Exception as e:
 
 
746
    ui.log_message(str(e))