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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.
 
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urwid.curses_display.curses.A_UNDERLINE |= (
 
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    urwid.curses_display.curses.A_BLINK)
 
 
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domain = "se.recompile"
 
 
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server_interface = domain + ".Mandos"
 
 
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client_interface = domain + ".Mandos.Client"
 
 
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    dbus.OBJECT_MANAGER_IFACE
 
 
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except AttributeError:
 
 
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    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
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def isoformat_to_datetime(iso):
 
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    "Parse an ISO 8601 date string to a datetime.datetime()"
 
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    d, t = iso.split(u"T", 1)
 
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    year, month, day = d.split(u"-", 2)
 
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    hour, minute, second = t.split(u":", 2)
 
 
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    d, t = iso.split("T", 1)
 
 
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    year, month, day = d.split("-", 2)
 
 
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    hour, minute, second = t.split(":", 2)
 
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    second, fraction = divmod(float(second), 1)
 
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    return datetime.datetime(int(year),
 
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                             int(second),           # Whole seconds
 
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                             int(fraction*1000000)) # Microseconds
 
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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()
 
147
 
        if self.last_checker_failed:
 
148
 
            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):
 
 
177
        """Call this method with True or False when timer should be
 
 
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        activated or deactivated.
 
 
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        if flag and self._update_timer_callback_tag is None:
 
 
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            # Will update the shown timer value every second
 
 
182
            self._update_timer_callback_tag = (
 
 
183
                GLib.timeout_add(1000,
 
 
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                                 glib_safely(self.update_timer)))
 
 
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        elif not (flag or self._update_timer_callback_tag is None):
 
 
186
            GLib.source_remove(self._update_timer_callback_tag)
 
 
187
            self._update_timer_callback_tag = None
 
152
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    def checker_completed(self, exitstatus, condition, command):
 
153
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        if exitstatus == 0:
 
154
 
            if self.last_checker_failed:
 
155
 
                self.last_checker_failed = False
 
156
 
                gobject.source_remove(self._update_timer_callback_tag)
 
157
 
                self._update_timer_callback_tag = None
 
158
 
            #self.logger(u'Checker for client %s (command "%s")'
 
160
 
            #            % (self.properties[u"Name"], command))
 
 
191
            log.debug('Checker for client %s (command "%s")'
 
 
192
                      " succeeded", self.properties["Name"], command)
 
164
 
        if not self.last_checker_failed:
 
165
 
            self.last_checker_failed = True
 
166
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
169
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        if os.WIFEXITED(condition):
 
170
 
            self.logger(u'Checker for client %s (command "%s")'
 
171
 
                        u' failed with exit code %s'
 
172
 
                        % (self.properties[u"Name"], command,
 
173
 
                           os.WEXITSTATUS(condition)))
 
 
197
            log.info('Checker for client %s (command "%s") failed'
 
 
198
                     " with exit code %d", self.properties["Name"],
 
 
199
                     command, os.WEXITSTATUS(condition))
 
174
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        elif os.WIFSIGNALED(condition):
 
175
 
            self.logger(u'Checker for client %s (command "%s")'
 
176
 
                        u' was killed by signal %s'
 
177
 
                        % (self.properties[u"Name"], command,
 
178
 
                           os.WTERMSIG(condition)))
 
179
 
        elif os.WCOREDUMP(condition):
 
180
 
            self.logger(u'Checker for client %s (command "%s")'
 
182
 
                        % (self.properties[u"Name"], command))
 
184
 
            self.logger(u'Checker for client %s completed'
 
 
201
            log.info('Checker for client %s (command "%s") was'
 
 
202
                     " killed by signal %d", self.properties["Name"],
 
 
203
                     command, os.WTERMSIG(condition))
 
188
206
    def checker_started(self, command):
 
189
 
        #self.logger(u'Client %s started checker "%s"'
 
190
 
        #            % (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)
 
193
211
    def got_secret(self):
 
194
 
        self.last_checker_failed = False
 
195
 
        self.logger(u'Client %s received its secret'
 
196
 
                    % self.properties[u"Name"])
 
 
212
        log.info("Client %s received its secret",
 
 
213
                 self.properties["Name"])
 
198
215
    def need_approval(self, timeout, default):
 
200
 
            message = u'Client %s needs approval within %s seconds'
 
 
217
            message = "Client %s needs approval within %f seconds"
 
202
 
            message = u'Client %s will get its secret in %s seconds'
 
204
 
                    % (self.properties[u"Name"], timeout/1000))
 
 
219
            message = "Client %s will get its secret in %f seconds"
 
 
220
        log.info(message, self.properties["Name"], timeout/1000)
 
206
222
    def rejected(self, reason):
 
207
 
        self.logger(u'Client %s was rejected; reason: %s'
 
208
 
                    % (self.properties[u"Name"], reason))
 
 
223
        log.info("Client %s was rejected; reason: %s",
 
 
224
                 self.properties["Name"], reason)
 
210
226
    def selectable(self):
 
211
227
        """Make this a "selectable" widget.
 
212
228
        This overrides the method from urwid.FlowWidget."""
 
215
 
    def rows(self, (maxcol,), focus=False):
 
 
231
    def rows(self, maxcolrow, focus=False):
 
216
232
        """How many rows this widget will occupy might depend on
 
217
233
        whether we have focus or not.
 
218
234
        This overrides the method from urwid.FlowWidget"""
 
219
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
 
235
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
221
237
    def current_widget(self, focus=False):
 
222
238
        if focus or self.opened:
 
223
239
            return self._focus_widget
 
224
240
        return self._widget
 
226
242
    def update(self):
 
227
243
        "Called when what is visible on the screen should be updated."
 
228
244
        # How to add standout mode to a style
 
229
 
        with_standout = { u"normal": u"standout",
 
230
 
                          u"bold": u"bold-standout",
 
232
 
                              u"underline-blink-standout",
 
233
 
                          u"bold-underline-blink":
 
234
 
                              u"bold-underline-blink-standout",
 
 
245
        with_standout = {"normal": "standout",
 
 
246
                         "bold": "bold-standout",
 
 
248
                         "underline-blink-standout",
 
 
249
                         "bold-underline-blink":
 
 
250
                         "bold-underline-blink-standout",
 
237
253
        # Rebuild focus and non-focus widgets using current properties
 
239
255
        # Base part of a client. Name!
 
240
 
        base = (u'%(name)s: '
 
241
 
                      % {u"name": self.properties[u"Name"]})
 
242
 
        if not self.properties[u"Enabled"]:
 
243
 
            message = u"DISABLED"
 
244
 
        elif self.properties[u"ApprovalPending"]:
 
245
 
            if self.properties[u"ApprovedByDefault"]:
 
246
 
                message = u"Connection established to client. (d)eny?"
 
248
 
                message = u"Seeks approval to send secret. (a)pprove?"
 
249
 
        elif self.last_checker_failed:
 
250
 
            timeout = datetime.timedelta(milliseconds
 
253
 
            last_ok = isoformat_to_datetime(
 
254
 
                max((self.properties[u"LastCheckedOK"]
 
255
 
                     or self.properties[u"Created"]),
 
256
 
                    self.properties[u"LastEnabled"]))
 
257
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
258
 
            message = (u'A checker has failed! Time until client'
 
260
 
                           % unicode(timer).rsplit(".", 1)[0])
 
 
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)
 
263
 
        self._text = "%s%s" % (base, message)
 
 
293
            self.using_timer(False)
 
 
294
        self._text = "{}{}".format(base, message)
 
265
296
        if not urwid.supports_unicode():
 
266
297
            self._text = self._text.encode("ascii", "replace")
 
267
 
        textlist = [(u"normal", self._text)]
 
 
298
        textlist = [("normal", self._text)]
 
268
299
        self._text_widget.set_text(textlist)
 
269
300
        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
277
308
        # Run update hook, if any
 
278
309
        if self.update_hook is not None:
 
279
310
            self.update_hook()
 
281
312
    def update_timer(self):
 
 
313
        """called by GLib. Will indefinitely loop until
 
 
314
        GLib.source_remove() on tag is called
 
284
317
        return True             # Keep calling this
 
 
319
    def delete(self, **kwargs):
 
287
320
        if self._update_timer_callback_tag is not None:
 
288
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
321
            GLib.source_remove(self._update_timer_callback_tag)
 
289
322
            self._update_timer_callback_tag = None
 
 
323
        for match in self.match_objects:
 
 
325
        self.match_objects = ()
 
290
326
        if self.delete_hook is not None:
 
291
327
            self.delete_hook(self)
 
293
 
    def render(self, (maxcol,), focus=False):
 
 
328
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
330
    def render(self, maxcolrow, focus=False):
 
294
331
        """Render differently if we have focus.
 
295
332
        This overrides the method from urwid.FlowWidget"""
 
296
 
        return self.current_widget(focus).render((maxcol,),
 
 
333
        return self.current_widget(focus).render(maxcolrow,
 
299
 
    def keypress(self, (maxcol,), key):
 
 
336
    def keypress(self, maxcolrow, key):
 
301
338
        This overrides the method from urwid.FlowWidget"""
 
303
 
            self.proxy.Enable(dbus_interface = client_interface)
 
305
 
            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)
 
307
348
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
308
 
                               dbus_interface = client_interface)
 
 
349
                               dbus_interface=client_interface,
 
310
352
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
311
 
                                  dbus_interface = client_interface)
 
312
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
 
353
                               dbus_interface=client_interface,
 
 
355
        elif key == "R" or key == "_" or key == "ctrl k":
 
313
356
            self.server_proxy_object.RemoveClient(self.proxy
 
316
 
            self.proxy.StartChecker(dbus_interface = client_interface)
 
318
 
            self.proxy.StopChecker(dbus_interface = client_interface)
 
320
 
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
 
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,
 
322
 
#         elif key == u"p" or key == "=":
 
 
371
#         elif key == "p" or key == "=":
 
323
372
#             self.proxy.pause()
 
324
 
#         elif key == u"u" or key == ":":
 
 
373
#         elif key == "u" or key == ":":
 
325
374
#             self.proxy.unpause()
 
326
 
#         elif key == u"RET":
 
329
 
#            self.proxy.Approve(True)
 
331
 
#            self.proxy.Approve(False)
 
335
 
    def property_changed(self, property=None, value=None,
 
337
 
        """Call self.update() if old value is not new value.
 
 
380
    def properties_changed(self, interface, properties, invalidated):
 
 
381
        """Call self.update() if any properties changed.
 
338
382
        This overrides the method from MandosClientPropertyCache"""
 
339
 
        property_name = unicode(property)
 
340
 
        old_value = self.properties.get(property_name)
 
341
 
        super(MandosClientWidget, self).property_changed(
 
342
 
            property=property, value=value, *args, **kwargs)
 
343
 
        if self.properties.get(property_name) != old_value:
 
 
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)
 
347
402
class ConstrainedListBox(urwid.ListBox):
 
348
403
    """Like a normal urwid.ListBox, but will consume all "up" or
 
349
404
    "down" key presses, thus not allowing any containing widgets to
 
350
405
    use them as an excuse to shift focus away from this widget.
 
352
 
    def keypress(self, (maxcol, maxrow), key):
 
353
 
        ret = super(ConstrainedListBox, self).keypress((maxcol,
 
355
 
        if ret in (u"up", u"down"):
 
 
407
    def keypress(self, *args, **kwargs):
 
 
408
        ret = (super(ConstrainedListBox, self)
 
 
409
               .keypress(*args, **kwargs))
 
 
410
        if ret in ("up", "down"):
 
360
 
class UserInterface(object):
 
361
416
    """This is the entire user interface - the whole screen
 
362
417
    with boxes, lists of client widgets, etc.
 
364
419
    def __init__(self, max_log_length=1000):
 
365
420
        DBusGMainLoop(set_as_default=True)
 
367
422
        self.screen = urwid.curses_display.Screen()
 
369
424
        self.screen.register_palette((
 
371
 
                 u"default", u"default", None),
 
373
 
                 u"default", u"default", u"bold"),
 
375
 
                 u"default", u"default", u"underline"),
 
377
 
                 u"default", u"default", u"standout"),
 
378
 
                (u"bold-underline-blink",
 
379
 
                 u"default", u"default", (u"bold", u"underline")),
 
381
 
                 u"default", u"default", (u"bold", u"standout")),
 
382
 
                (u"underline-blink-standout",
 
383
 
                 u"default", u"default", (u"underline", u"standout")),
 
384
 
                (u"bold-underline-blink-standout",
 
385
 
                 u"default", u"default", (u"bold", u"underline",
 
 
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"),
 
389
446
        if urwid.supports_unicode():
 
390
 
            self.divider = u"─" # \u2500
 
391
 
            #self.divider = u"━" # \u2501
 
 
447
            self.divider = "─"  # \u2500
 
393
 
            #self.divider = u"-" # \u002d
 
394
 
            self.divider = u"_" # \u005f
 
 
449
            self.divider = "_"  # \u005f
 
396
451
        self.screen.start()
 
398
453
        self.size = self.screen.get_cols_rows()
 
400
455
        self.clients = urwid.SimpleListWalker([])
 
401
456
        self.clients_dict = {}
 
403
458
        # We will add Text widgets to this list
 
 
459
        self.log = urwid.SimpleListWalker([])
 
405
460
        self.max_log_length = max_log_length
 
407
462
        # We keep a reference to the log widget so we can remove it
 
408
463
        # from the ListWalker without it getting destroyed
 
409
464
        self.logbox = ConstrainedListBox(self.log)
 
411
466
        # This keeps track of whether self.uilist currently has
 
412
467
        # self.logbox in it or not
 
413
468
        self.log_visible = True
 
414
 
        self.log_wrap = u"any"
 
 
469
        self.log_wrap = "any"
 
 
471
        self.loghandler = UILogHandler(self)
 
417
 
        self.log_message_raw((u"bold",
 
418
 
                              u"Mandos Monitor version " + version))
 
419
 
        self.log_message_raw((u"bold",
 
422
 
        self.busname = domain + '.Mandos'
 
423
 
        self.main_loop = gobject.MainLoop()
 
424
 
        self.bus = dbus.SystemBus()
 
425
 
        mandos_dbus_objc = self.bus.get_object(
 
426
 
            self.busname, u"/", follow_name_owner_changes=True)
 
427
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
431
 
            mandos_clients = (self.mandos_serv
 
432
 
                              .GetAllClientsWithProperties())
 
433
 
        except dbus.exceptions.DBusException:
 
434
 
            mandos_clients = dbus.Dictionary()
 
437
 
         .connect_to_signal(u"ClientRemoved",
 
438
 
                            self.find_and_remove_client,
 
439
 
                            dbus_interface=server_interface,
 
442
 
         .connect_to_signal(u"ClientAdded",
 
444
 
                            dbus_interface=server_interface,
 
447
 
         .connect_to_signal(u"ClientNotFound",
 
448
 
                            self.client_not_found,
 
449
 
                            dbus_interface=server_interface,
 
451
 
        for path, client in mandos_clients.iteritems():
 
452
 
            client_proxy_object = self.bus.get_object(self.busname,
 
454
 
            self.add_client(MandosClientWidget(server_proxy_object
 
457
 
                                               =client_proxy_object,
 
467
 
    def client_not_found(self, fingerprint, address):
 
468
 
        self.log_message((u"Client with address %s and fingerprint %s"
 
469
 
                          u" could not be found" % (address,
 
 
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)
 
472
485
    def rebuild(self):
 
473
486
        """This rebuilds the User Interface.
 
474
487
        Call this when the widget layout needs to change"""
 
476
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
 
489
        # self.uilist.append(urwid.ListBox(self.clients))
 
477
490
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
479
 
                                       #header=urwid.Divider(),
 
 
492
                                       # header=urwid.Divider(),
 
482
 
                                       urwid.Divider(div_char=
 
 
494
                                       footer=urwid.Divider(
 
 
495
                                           div_char=self.divider)))
 
484
496
        if self.log_visible:
 
485
497
            self.uilist.append(self.logbox)
 
487
498
        self.topwidget = urwid.Pile(self.uilist)
 
489
 
    def log_message(self, message):
 
490
 
        timestamp = datetime.datetime.now().isoformat()
 
491
 
        self.log_message_raw(timestamp + u": " + message)
 
493
 
    def log_message_raw(self, markup):
 
494
 
        """Add a log message to the log buffer."""
 
 
500
    def add_log_line(self, markup):
 
495
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
496
 
        if (self.max_log_length
 
497
 
            and len(self.log) > self.max_log_length):
 
498
 
            del self.log[0:len(self.log)-self.max_log_length-1]
 
499
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
500
 
                              coming_from=u"above")
 
 
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,
 
503
509
    def toggle_log_display(self):
 
504
510
        """Toggle visibility of the log buffer."""
 
505
511
        self.log_visible = not self.log_visible
 
507
 
        self.log_message(u"Log visibility changed to: "
 
508
 
                         + unicode(self.log_visible))
 
 
513
        log.debug("Log visibility changed to: %s", self.log_visible)
 
510
515
    def change_log_display(self):
 
511
516
        """Change type of log display.
 
512
517
        Currently, this toggles wrapping of text lines."""
 
513
 
        if self.log_wrap == u"clip":
 
514
 
            self.log_wrap = u"any"
 
 
518
        if self.log_wrap == "clip":
 
 
519
            self.log_wrap = "any"
 
516
 
            self.log_wrap = u"clip"
 
 
521
            self.log_wrap = "clip"
 
517
522
        for textwidget in self.log:
 
518
523
            textwidget.set_wrap_mode(self.log_wrap)
 
519
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
521
 
    def find_and_remove_client(self, path, name):
 
522
 
        """Find an client from its object path and remove it.
 
524
 
        This is connected to the ClientRemoved signal from the
 
 
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
 
525
530
        Mandos server object."""
 
 
531
        if client_interface not in interfaces:
 
 
532
            # Not a Mandos client object; ignore
 
527
535
            client = self.clients_dict[path]
 
531
 
        self.remove_client(client, path)
 
533
 
    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
 
534
551
        client_proxy_object = self.bus.get_object(self.busname, path)
 
535
 
        self.add_client(MandosClientWidget(server_proxy_object
 
538
 
                                           =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])),
 
547
560
    def add_client(self, client, path=None):
 
548
561
        self.clients.append(client)
 
550
563
            path = client.proxy.object_path
 
551
564
        self.clients_dict[path] = client
 
552
 
        self.clients.sort(None, lambda c: c.properties[u"Name"])
 
 
565
        self.clients.sort(key=lambda c: c.properties["Name"])
 
555
568
    def remove_client(self, client, path=None):
 
556
569
        self.clients.remove(client)
 
558
571
            path = client.proxy.object_path
 
559
572
        del self.clients_dict[path]
 
560
 
        if not self.clients_dict:
 
561
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
562
 
            # is completely emptied, we need to recreate it.
 
563
 
            self.clients = urwid.SimpleListWalker([])
 
567
575
    def refresh(self):
 
568
576
        """Redraw the screen"""
 
569
577
        canvas = self.topwidget.render(self.size, focus=True)
 
570
578
        self.screen.draw_screen(self.size, canvas)
 
573
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),
 
575
 
        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)))
 
579
633
        self.main_loop.run()
 
580
634
        # Main loop has finished, we should close everything now
 
581
 
        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)
 
585
641
        self.main_loop.quit()
 
 
642
        log.removeHandler(self.loghandler)
 
 
643
        log.propagate = self.orig_log_propagate
 
587
645
    def process_input(self, source, condition):
 
588
646
        keys = self.screen.get_input()
 
589
 
        translations = { u"ctrl n": u"down",      # Emacs
 
590
 
                         u"ctrl p": u"up",        # Emacs
 
591
 
                         u"ctrl v": u"page down", # Emacs
 
592
 
                         u"meta v": u"page up",   # Emacs
 
593
 
                         u" ": u"page down",      # less
 
594
 
                         u"f": u"page down",      # less
 
595
 
                         u"b": u"page up",        # less
 
 
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
 
601
659
                key = translations[key]
 
602
660
            except KeyError:    # :-)
 
605
 
            if key == u"q" or key == u"Q":
 
 
663
            if key == "q" or key == "Q":
 
608
 
            elif key == u"window resize":
 
 
666
            elif key == "window resize":
 
609
667
                self.size = self.screen.get_cols_rows()
 
611
 
            elif key == u"\f":  # Ctrl-L
 
 
669
            elif key == "ctrl l":
 
613
 
            elif key == u"l" or key == u"D":
 
 
672
            elif key == "l" or key == "D":
 
614
673
                self.toggle_log_display()
 
616
 
            elif key == u"w" or key == u"i":
 
 
675
            elif key == "w" or key == "i":
 
617
676
                self.change_log_display()
 
619
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
 
678
            elif key == "?" or key == "f1" or key == "esc":
 
620
679
                if not self.log_visible:
 
621
680
                    self.log_visible = True
 
623
 
                self.log_message_raw((u"bold",
 
627
 
                                            u"l: Log window toggle",
 
628
 
                                            u"TAB: Switch window",
 
630
 
                self.log_message_raw((u"bold",
 
636
 
                                             u"s: Start new checker",
 
 
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",
 
643
703
                if self.topwidget.get_focus() is self.logbox:
 
644
704
                    self.topwidget.set_focus(0)
 
646
706
                    self.topwidget.set_focus(self.logbox)
 
648
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
650
 
            #    pass            # xxx end-of-buffer
 
651
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
653
 
            #    pass            # xxx beginning-of-buffer
 
654
 
            #elif key == u"ctrl e" or key == u"$":
 
655
 
            #    pass            # xxx move-end-of-line
 
656
 
            #elif key == u"ctrl a" or key == u"^":
 
657
 
            #    pass            # xxx move-beginning-of-line
 
658
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
660
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
663
 
            #    pass            # scroll up log
 
665
 
            #    pass            # scroll down log
 
 
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
 
666
733
            elif self.topwidget.selectable():
 
667
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)
 
671
752
ui = UserInterface()
 
674
755
except KeyboardInterrupt:
 
677
 
    ui.log_message(unicode(e))
 
 
756
    with warnings.catch_warnings():
 
 
757
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
760
    with warnings.catch_warnings():
 
 
761
        warnings.filterwarnings("ignore", "", BytesWarning)