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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 © 2009,2010 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, 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
 
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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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()
 
89
 
        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,
 
96
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
98
 
        #XXX This break good super behaviour!
 
99
 
#        super(MandosClientPropertyCache, self).__init__(
 
102
 
    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.
 
 
102
    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
 
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        self.proxy = proxy_object  # Mandos Client proxy object
 
 
104
        self.properties = dict() if properties is None else properties
 
 
105
        self.property_changed_match = (
 
 
106
            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:
 
 
112
            self.properties.update(self.proxy.GetAll(
 
 
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                dbus_interface=dbus.PROPERTIES_IFACE))
 
 
116
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
 
118
    def properties_changed(self, interface, properties, invalidated):
 
 
119
        """This is called whenever we get a PropertiesChanged signal
 
 
120
        It updates the changed properties in the "properties" dict.
 
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        # Update properties dict with new value
 
107
 
        self.properties[property] = value
 
 
123
        if interface == client_interface:
 
 
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            self.properties.update(properties)
 
 
127
        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
 
126
 
        self._update_timer_callback_lock = 0
 
127
 
        self.last_checker_failed = False
 
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        # The widget shown normally
 
130
 
        self._text_widget = urwid.Text(u"")
 
 
146
        self._text_widget = urwid.Text("")
 
131
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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,
 
 
148
        self._focus_text_widget = urwid.Text("")
 
 
149
        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,
 
161
 
        self.proxy.connect_to_signal(u"CheckerStarted",
 
162
 
                                     self.checker_started,
 
165
 
        self.proxy.connect_to_signal(u"GotSecret",
 
169
 
        self.proxy.connect_to_signal(u"NeedApproval",
 
173
 
        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",
 
 
174
        log.debug("Created client %s", self.properties["Name"])
 
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    def using_timer(self, flag):
 
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        """Call this method with True or False when timer should be
 
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        activated or deactivated.
 
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
 
197
 
        elif old and self._update_timer_callback_lock == 0:
 
198
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
180
        if flag and self._update_timer_callback_tag is None:
 
 
181
            # Will update the shown timer value every second
 
 
182
            self._update_timer_callback_tag = (
 
 
183
                GLib.timeout_add(1000,
 
 
184
                                 glib_safely(self.update_timer)))
 
 
185
        elif not (flag or self._update_timer_callback_tag is None):
 
 
186
            GLib.source_remove(self._update_timer_callback_tag)
 
199
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            self._update_timer_callback_tag = None
 
201
189
    def checker_completed(self, exitstatus, condition, command):
 
202
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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))
 
 
191
            log.debug('Checker for client %s (command "%s")'
 
 
192
                      " succeeded", self.properties["Name"], command)
 
212
 
        if not self.last_checker_failed:
 
213
 
            self.last_checker_failed = True
 
214
 
            self.using_timer(True)
 
215
196
        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)))
 
 
197
            log.info('Checker for client %s (command "%s") failed'
 
 
198
                     " with exit code %d", self.properties["Name"],
 
 
199
                     command, os.WEXITSTATUS(condition))
 
220
200
        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'
 
 
201
            log.info('Checker for client %s (command "%s") was'
 
 
202
                     " killed by signal %d", self.properties["Name"],
 
 
203
                     command, os.WTERMSIG(condition))
 
234
206
    def checker_started(self, command):
 
235
 
        #self.logger(u'Client %s started checker "%s"'
 
236
 
        #            % (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)
 
239
211
    def got_secret(self):
 
240
 
        self.last_checker_failed = False
 
241
 
        self.logger(u'Client %s received its secret'
 
242
 
                    % self.properties[u"Name"])
 
 
212
        log.info("Client %s received its secret",
 
 
213
                 self.properties["Name"])
 
244
215
    def need_approval(self, timeout, default):
 
246
 
            message = u'Client %s needs approval within %s seconds'
 
 
217
            message = "Client %s needs approval within %f 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)
 
 
219
            message = "Client %s will get its secret in %f seconds"
 
 
220
        log.info(message, self.properties["Name"], timeout/1000)
 
253
222
    def rejected(self, reason):
 
254
 
        self.logger(u'Client %s was rejected; reason: %s'
 
255
 
                    % (self.properties[u"Name"], reason))
 
 
223
        log.info("Client %s was rejected; reason: %s",
 
 
224
                 self.properties["Name"], reason)
 
257
226
    def selectable(self):
 
258
227
        """Make this a "selectable" widget.
 
259
228
        This overrides the method from urwid.FlowWidget."""
 
262
 
    def rows(self, (maxcol,), focus=False):
 
 
231
    def rows(self, maxcolrow, focus=False):
 
263
232
        """How many rows this widget will occupy might depend on
 
264
233
        whether we have focus or not.
 
265
234
        This overrides the method from urwid.FlowWidget"""
 
266
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
 
235
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
268
237
    def current_widget(self, focus=False):
 
269
238
        if focus or self.opened:
 
270
239
            return self._focus_widget
 
271
240
        return self._widget
 
273
242
    def update(self):
 
274
243
        "Called when what is visible on the screen should be updated."
 
275
244
        # 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",
 
 
245
        with_standout = {"normal": "standout",
 
 
246
                         "bold": "bold-standout",
 
 
248
                         "underline-blink-standout",
 
 
249
                         "bold-underline-blink":
 
 
250
                         "bold-underline-blink-standout",
 
284
253
        # Rebuild focus and non-focus widgets using current properties
 
286
255
        # 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
 
 
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"])
 
295
263
            last_approval_request = isoformat_to_datetime(
 
296
 
                self.properties[u"LastApprovalRequest"])
 
 
264
                self.properties["LastApprovalRequest"])
 
297
265
            if last_approval_request is not None:
 
298
 
                timer = timeout - (datetime.datetime.utcnow()
 
299
 
                                   - last_approval_request)
 
 
266
                timer = max(timeout - (datetime.datetime.utcnow()
 
 
267
                                       - last_approval_request),
 
 
268
                            datetime.timedelta())
 
301
270
                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])
 
 
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)
 
321
 
        self._text = "%s%s" % (base, message)
 
 
293
            self.using_timer(False)
 
 
294
        self._text = "{}{}".format(base, message)
 
323
296
        if not urwid.supports_unicode():
 
324
297
            self._text = self._text.encode("ascii", "replace")
 
325
 
        textlist = [(u"normal", self._text)]
 
 
298
        textlist = [("normal", self._text)]
 
326
299
        self._text_widget.set_text(textlist)
 
327
300
        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
335
308
        # Run update hook, if any
 
336
309
        if self.update_hook is not None:
 
337
310
            self.update_hook()
 
339
312
    def update_timer(self):
 
 
313
        """called by GLib. Will indefinitely loop until
 
 
314
        GLib.source_remove() on tag is called
 
342
317
        return True             # Keep calling this
 
 
319
    def delete(self, **kwargs):
 
345
320
        if self._update_timer_callback_tag is not None:
 
346
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
321
            GLib.source_remove(self._update_timer_callback_tag)
 
347
322
            self._update_timer_callback_tag = None
 
 
323
        for match in self.match_objects:
 
 
325
        self.match_objects = ()
 
348
326
        if self.delete_hook is not None:
 
349
327
            self.delete_hook(self)
 
351
 
    def render(self, (maxcol,), focus=False):
 
 
328
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
330
    def render(self, maxcolrow, focus=False):
 
352
331
        """Render differently if we have focus.
 
353
332
        This overrides the method from urwid.FlowWidget"""
 
354
 
        return self.current_widget(focus).render((maxcol,),
 
 
333
        return self.current_widget(focus).render(maxcolrow,
 
357
 
    def keypress(self, (maxcol,), key):
 
 
336
    def keypress(self, maxcolrow, key):
 
359
338
        This overrides the method from urwid.FlowWidget"""
 
361
 
            self.proxy.Enable(dbus_interface = client_interface)
 
363
 
            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)
 
365
348
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
366
 
                               dbus_interface = client_interface)
 
 
349
                               dbus_interface=client_interface,
 
368
352
            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":
 
 
353
                               dbus_interface=client_interface,
 
 
355
        elif key == "R" or key == "_" or key == "ctrl k":
 
371
356
            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)
 
 
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,
 
380
 
#         elif key == u"p" or key == "=":
 
 
371
#         elif key == "p" or key == "=":
 
381
372
#             self.proxy.pause()
 
382
 
#         elif key == u"u" or key == ":":
 
 
373
#         elif key == "u" or key == ":":
 
383
374
#             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.
 
 
380
    def properties_changed(self, interface, properties, invalidated):
 
 
381
        """Call self.update() if any properties changed.
 
392
382
        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:
 
 
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)
 
401
402
class ConstrainedListBox(urwid.ListBox):
 
402
403
    """Like a normal urwid.ListBox, but will consume all "up" or
 
403
404
    "down" key presses, thus not allowing any containing widgets to
 
404
405
    use them as an excuse to shift focus away from this widget.
 
406
 
    def keypress(self, (maxcol, maxrow), key):
 
407
 
        ret = super(ConstrainedListBox, self).keypress((maxcol,
 
409
 
        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"):
 
414
 
class UserInterface(object):
 
415
416
    """This is the entire user interface - the whole screen
 
416
417
    with boxes, lists of client widgets, etc.
 
418
419
    def __init__(self, max_log_length=1000):
 
419
420
        DBusGMainLoop(set_as_default=True)
 
421
422
        self.screen = urwid.curses_display.Screen()
 
423
424
        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",
 
 
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"),
 
443
446
        if urwid.supports_unicode():
 
444
 
            self.divider = u"─" # \u2500
 
445
 
            #self.divider = u"━" # \u2501
 
 
447
            self.divider = "─"  # \u2500
 
447
 
            #self.divider = u"-" # \u002d
 
448
 
            self.divider = u"_" # \u005f
 
 
449
            self.divider = "_"  # \u005f
 
450
451
        self.screen.start()
 
452
453
        self.size = self.screen.get_cols_rows()
 
454
455
        self.clients = urwid.SimpleListWalker([])
 
455
456
        self.clients_dict = {}
 
457
458
        # We will add Text widgets to this list
 
 
459
        self.log = urwid.SimpleListWalker([])
 
459
460
        self.max_log_length = max_log_length
 
461
462
        # We keep a reference to the log widget so we can remove it
 
462
463
        # from the ListWalker without it getting destroyed
 
463
464
        self.logbox = ConstrainedListBox(self.log)
 
465
466
        # This keeps track of whether self.uilist currently has
 
466
467
        # self.logbox in it or not
 
467
468
        self.log_visible = True
 
468
 
        self.log_wrap = u"any"
 
 
469
        self.log_wrap = "any"
 
 
471
        self.loghandler = UILogHandler(self)
 
471
 
        self.log_message_raw((u"bold",
 
472
 
                              u"Mandos Monitor version " + version))
 
473
 
        self.log_message_raw((u"bold",
 
476
 
        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,
 
 
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)
 
526
485
    def rebuild(self):
 
527
486
        """This rebuilds the User Interface.
 
528
487
        Call this when the widget layout needs to change"""
 
530
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
 
489
        # self.uilist.append(urwid.ListBox(self.clients))
 
531
490
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
533
 
                                       #header=urwid.Divider(),
 
 
492
                                       # header=urwid.Divider(),
 
536
 
                                       urwid.Divider(div_char=
 
 
494
                                       footer=urwid.Divider(
 
 
495
                                           div_char=self.divider)))
 
538
496
        if self.log_visible:
 
539
497
            self.uilist.append(self.logbox)
 
541
498
        self.topwidget = urwid.Pile(self.uilist)
 
543
 
    def log_message(self, message):
 
544
 
        timestamp = datetime.datetime.now().isoformat()
 
545
 
        self.log_message_raw(timestamp + u": " + message)
 
547
 
    def log_message_raw(self, markup):
 
548
 
        """Add a log message to the log buffer."""
 
 
500
    def add_log_line(self, markup):
 
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)]
 
 
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
        log.debug("Log visibility changed to: %s", self.log_visible)
 
564
515
    def change_log_display(self):
 
565
516
        """Change type of log display.
 
566
517
        Currently, this toggles wrapping of text lines."""
 
567
 
        if self.log_wrap == u"clip":
 
568
 
            self.log_wrap = u"any"
 
 
518
        if self.log_wrap == "clip":
 
 
519
            self.log_wrap = "any"
 
570
 
            self.log_wrap = u"clip"
 
 
521
            self.log_wrap = "clip"
 
571
522
        for textwidget in self.log:
 
572
523
            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
 
 
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
 
579
530
        Mandos server object."""
 
 
531
        if client_interface not in interfaces:
 
 
532
            # Not a Mandos client object; ignore
 
581
535
            client = self.clients_dict[path]
 
585
 
        self.remove_client(client, path)
 
587
 
    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
 
588
551
        client_proxy_object = self.bus.get_object(self.busname, path)
 
589
 
        self.add_client(MandosClientWidget(server_proxy_object
 
592
 
                                           =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])),
 
601
560
    def add_client(self, client, path=None):
 
602
561
        self.clients.append(client)
 
604
563
            path = client.proxy.object_path
 
605
564
        self.clients_dict[path] = client
 
606
 
        self.clients.sort(None, lambda c: c.properties[u"Name"])
 
 
565
        self.clients.sort(key=lambda c: c.properties["Name"])
 
609
568
    def remove_client(self, client, path=None):
 
610
569
        self.clients.remove(client)
 
612
571
            path = client.proxy.object_path
 
613
572
        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
575
    def refresh(self):
 
622
576
        """Redraw the screen"""
 
623
577
        canvas = self.topwidget.render(self.size, focus=True)
 
624
578
        self.screen.draw_screen(self.size, canvas)
 
627
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),
 
629
 
        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)))
 
633
633
        self.main_loop.run()
 
634
634
        # Main loop has finished, we should close everything now
 
635
 
        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)
 
639
641
        self.main_loop.quit()
 
 
642
        log.removeHandler(self.loghandler)
 
 
643
        log.propagate = self.orig_log_propagate
 
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.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",
 
697
703
                if self.topwidget.get_focus() is self.logbox:
 
698
704
                    self.topwidget.set_focus(0)
 
700
706
                    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
 
 
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
 
720
733
            elif self.topwidget.selectable():
 
721
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)
 
725
752
ui = UserInterface()
 
728
755
except KeyboardInterrupt:
 
731
 
    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)