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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, with_statement
 
 
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from __future__ import (division, absolute_import, print_function,
 
 
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    from future_builtins import *
 
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import urwid.curses_display
 
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from dbus.mainloop.glib import DBusGMainLoop
 
 
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from gi.repository import GLib
 
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locale.setlocale(locale.LC_ALL, u'')
 
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logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
 
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if sys.version_info.major == 2:
 
 
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log = logging.getLogger(os.path.basename(sys.argv[0]))
 
 
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logging.basicConfig(level="NOTSET", # Show all messages
 
 
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                    format="%(message)s") # Show basic log messages
 
 
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logging.captureWarnings(True)   # Show warnings via the logging system
 
 
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locale.setlocale(locale.LC_ALL, "")
 
 
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logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
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# Some useful constants
 
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domain = 'se.bsnet.fukt'
 
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server_interface = domain + '.Mandos'
 
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client_interface = domain + '.Mandos.Client'
 
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# Always run in monochrome mode
 
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",
 
90
 
                                     self.property_changed,
 
94
 
        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.
 
 
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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
 
 
100
        self.property_changed_match = (
 
 
101
            self.proxy.connect_to_signal("PropertiesChanged",
 
 
102
                                         self.properties_changed,
 
 
103
                                         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
 
107
 
        self.properties[property] = value
 
 
118
        if interface == client_interface:
 
 
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            self.properties.update(properties)
 
 
122
        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
 
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        self.last_checker_failed = False
 
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        # The widget shown normally
 
130
 
        self._text_widget = urwid.Text(u"")
 
 
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        self._text_widget = urwid.Text("")
 
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        # The widget shown when we have focus
 
132
 
        self._focus_text_widget = urwid.Text(u"")
 
133
 
        super(MandosClientWidget, self).__init__(
 
134
 
            update_hook=update_hook, delete_hook=delete_hook,
 
 
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        self._focus_text_widget = urwid.Text("")
 
 
144
        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",
 
 
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        log.debug("Created client %s", self.properties["Name"])
 
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    def using_timer(self, flag):
 
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        """Call this method with True or False when timer should be
 
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        activated or deactivated.
 
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)
 
 
175
        if flag and self._update_timer_callback_tag is None:
 
 
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            # Will update the shown timer value every second
 
 
177
            self._update_timer_callback_tag = (
 
 
178
                GLib.timeout_add(1000,
 
 
179
                                 glib_safely(self.update_timer)))
 
 
180
        elif not (flag or self._update_timer_callback_tag is None):
 
 
181
            GLib.source_remove(self._update_timer_callback_tag)
 
199
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            self._update_timer_callback_tag = None
 
201
184
    def checker_completed(self, exitstatus, condition, command):
 
202
185
        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))
 
 
186
            log.debug('Checker for client %s (command "%s")'
 
 
187
                      " succeeded", self.properties["Name"], command)
 
212
 
        if not self.last_checker_failed:
 
213
 
            self.last_checker_failed = True
 
214
 
            self.using_timer(True)
 
215
191
        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)))
 
 
192
            log.info('Checker for client %s (command "%s") failed'
 
 
193
                     " with exit code %d", self.properties["Name"],
 
 
194
                     command, os.WEXITSTATUS(condition))
 
220
195
        elif os.WIFSIGNALED(condition):
 
221
 
            self.logger(u'Checker for client %s (command "%s")'
 
222
 
                        u' was killed by signal %s'
 
223
 
                        % (self.properties[u"Name"], command,
 
224
 
                           os.WTERMSIG(condition)))
 
225
 
        elif os.WCOREDUMP(condition):
 
226
 
            self.logger(u'Checker for client %s (command "%s")'
 
228
 
                        % (self.properties[u"Name"], command))
 
230
 
            self.logger(u'Checker for client %s completed'
 
 
196
            log.info('Checker for client %s (command "%s") was'
 
 
197
                     " killed by signal %d", self.properties["Name"],
 
 
198
                     command, os.WTERMSIG(condition))
 
234
201
    def checker_started(self, command):
 
235
 
        #self.logger(u'Client %s started checker "%s"'
 
236
 
        #            % (self.properties[u"Name"], unicode(command)))
 
 
202
        """Server signals that a checker started."""
 
 
203
        log.debug('Client %s started checker "%s"',
 
 
204
                  self.properties["Name"], command)
 
239
206
    def got_secret(self):
 
240
 
        self.last_checker_failed = False
 
241
 
        self.logger(u'Client %s received its secret'
 
242
 
                    % self.properties[u"Name"])
 
 
207
        log.info("Client %s received its secret",
 
 
208
                 self.properties["Name"])
 
244
210
    def need_approval(self, timeout, default):
 
246
 
            message = u'Client %s needs approval within %s seconds'
 
 
212
            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)
 
 
214
            message = "Client %s will get its secret in %f seconds"
 
 
215
        log.info(message, self.properties["Name"], timeout/1000)
 
253
217
    def rejected(self, reason):
 
254
 
        self.logger(u'Client %s was rejected; reason: %s'
 
255
 
                    % (self.properties[u"Name"], reason))
 
 
218
        log.info("Client %s was rejected; reason: %s",
 
 
219
                 self.properties["Name"], reason)
 
257
221
    def selectable(self):
 
258
222
        """Make this a "selectable" widget.
 
259
223
        This overrides the method from urwid.FlowWidget."""
 
262
 
    def rows(self, (maxcol,), focus=False):
 
 
226
    def rows(self, maxcolrow, focus=False):
 
263
227
        """How many rows this widget will occupy might depend on
 
264
228
        whether we have focus or not.
 
265
229
        This overrides the method from urwid.FlowWidget"""
 
266
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
 
230
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
268
232
    def current_widget(self, focus=False):
 
269
233
        if focus or self.opened:
 
270
234
            return self._focus_widget
 
271
235
        return self._widget
 
273
237
    def update(self):
 
274
238
        "Called when what is visible on the screen should be updated."
 
275
239
        # 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",
 
 
240
        with_standout = {"normal": "standout",
 
 
241
                         "bold": "bold-standout",
 
 
243
                         "underline-blink-standout",
 
 
244
                         "bold-underline-blink":
 
 
245
                         "bold-underline-blink-standout",
 
284
248
        # Rebuild focus and non-focus widgets using current properties
 
286
250
        # 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
 
 
251
        base = "{name}: ".format(name=self.properties["Name"])
 
 
252
        if not self.properties["Enabled"]:
 
 
254
            self.using_timer(False)
 
 
255
        elif self.properties["ApprovalPending"]:
 
 
256
            timeout = datetime.timedelta(
 
 
257
                milliseconds=self.properties["ApprovalDelay"])
 
295
258
            last_approval_request = isoformat_to_datetime(
 
296
 
                self.properties[u"LastApprovalRequest"])
 
 
259
                self.properties["LastApprovalRequest"])
 
297
260
            if last_approval_request is not None:
 
298
 
                timer = timeout - (datetime.datetime.utcnow()
 
299
 
                                   - last_approval_request)
 
 
261
                timer = max(timeout - (datetime.datetime.utcnow()
 
 
262
                                       - last_approval_request),
 
 
263
                            datetime.timedelta())
 
301
265
                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])
 
 
266
            if self.properties["ApprovedByDefault"]:
 
 
267
                message = "Approval in {}. (d)eny?"
 
 
269
                message = "Denial in {}. (a)pprove?"
 
 
270
            message = message.format(str(timer).rsplit(".", 1)[0])
 
 
271
            self.using_timer(True)
 
 
272
        elif self.properties["LastCheckerStatus"] != 0:
 
 
273
            # When checker has failed, show timer until client expires
 
 
274
            expires = self.properties["Expires"]
 
 
276
                timer = datetime.timedelta(0)
 
 
278
                expires = (datetime.datetime.strptime
 
 
279
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
 
280
                timer = max(expires - datetime.datetime.utcnow(),
 
 
281
                            datetime.timedelta())
 
 
282
            message = ("A checker has failed! Time until client"
 
 
284
                       .format(str(timer).rsplit(".", 1)[0]))
 
 
285
            self.using_timer(True)
 
321
 
        self._text = "%s%s" % (base, message)
 
 
288
            self.using_timer(False)
 
 
289
        self._text = "{}{}".format(base, message)
 
323
291
        if not urwid.supports_unicode():
 
324
292
            self._text = self._text.encode("ascii", "replace")
 
325
 
        textlist = [(u"normal", self._text)]
 
 
293
        textlist = [("normal", self._text)]
 
326
294
        self._text_widget.set_text(textlist)
 
327
295
        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
335
303
        # Run update hook, if any
 
336
304
        if self.update_hook is not None:
 
337
305
            self.update_hook()
 
339
307
    def update_timer(self):
 
 
308
        """called by GLib. Will indefinitely loop until
 
 
309
        GLib.source_remove() on tag is called
 
342
312
        return True             # Keep calling this
 
 
314
    def delete(self, **kwargs):
 
345
315
        if self._update_timer_callback_tag is not None:
 
346
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
316
            GLib.source_remove(self._update_timer_callback_tag)
 
347
317
            self._update_timer_callback_tag = None
 
 
318
        for match in self.match_objects:
 
 
320
        self.match_objects = ()
 
348
321
        if self.delete_hook is not None:
 
349
322
            self.delete_hook(self)
 
351
 
    def render(self, (maxcol,), focus=False):
 
 
323
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
325
    def render(self, maxcolrow, focus=False):
 
352
326
        """Render differently if we have focus.
 
353
327
        This overrides the method from urwid.FlowWidget"""
 
354
 
        return self.current_widget(focus).render((maxcol,),
 
 
328
        return self.current_widget(focus).render(maxcolrow,
 
357
 
    def keypress(self, (maxcol,), key):
 
 
331
    def keypress(self, maxcolrow, key):
 
359
333
        This overrides the method from urwid.FlowWidget"""
 
361
 
            self.proxy.Enable(dbus_interface = client_interface)
 
363
 
            self.proxy.Disable(dbus_interface = client_interface)
 
 
335
            self.proxy.Set(client_interface, "Enabled",
 
 
336
                           dbus.Boolean(True), ignore_reply=True,
 
 
337
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
339
            self.proxy.Set(client_interface, "Enabled", False,
 
 
341
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
365
343
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
366
 
                               dbus_interface = client_interface)
 
 
344
                               dbus_interface=client_interface,
 
368
347
            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":
 
 
348
                               dbus_interface=client_interface,
 
 
350
        elif key == "R" or key == "_" or key == "ctrl k":
 
371
351
            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)
 
 
355
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
356
                           dbus.Boolean(True), ignore_reply=True,
 
 
357
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
359
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
360
                           dbus.Boolean(False), ignore_reply=True,
 
 
361
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
363
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
380
 
#         elif key == u"p" or key == "=":
 
 
366
#         elif key == "p" or key == "=":
 
381
367
#             self.proxy.pause()
 
382
 
#         elif key == u"u" or key == ":":
 
 
368
#         elif key == "u" or key == ":":
 
383
369
#             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.
 
 
375
    def properties_changed(self, interface, properties, invalidated):
 
 
376
        """Call self.update() if any properties changed.
 
392
377
        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:
 
 
378
        old_values = {key: self.properties.get(key)
 
 
379
                      for key in properties.keys()}
 
 
380
        super(MandosClientWidget, self).properties_changed(
 
 
381
            interface, properties, invalidated)
 
 
382
        if any(old_values[key] != self.properties.get(key)
 
 
383
               for key in old_values):
 
 
387
def glib_safely(func, retval=True):
 
 
388
    def safe_func(*args, **kwargs):
 
 
390
            return func(*args, **kwargs)
 
401
397
class ConstrainedListBox(urwid.ListBox):
 
402
398
    """Like a normal urwid.ListBox, but will consume all "up" or
 
403
399
    "down" key presses, thus not allowing any containing widgets to
 
404
400
    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"):
 
 
402
    def keypress(self, *args, **kwargs):
 
 
403
        ret = (super(ConstrainedListBox, self)
 
 
404
               .keypress(*args, **kwargs))
 
 
405
        if ret in ("up", "down"):
 
414
 
class UserInterface(object):
 
415
411
    """This is the entire user interface - the whole screen
 
416
412
    with boxes, lists of client widgets, etc.
 
418
414
    def __init__(self, max_log_length=1000):
 
419
415
        DBusGMainLoop(set_as_default=True)
 
421
417
        self.screen = urwid.curses_display.Screen()
 
423
419
        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",
 
 
421
                 "default", "default", None),
 
 
423
                 "bold", "default", "bold"),
 
 
425
                 "underline,blink", "default", "underline,blink"),
 
 
427
                 "standout", "default", "standout"),
 
 
428
                ("bold-underline-blink",
 
 
429
                 "bold,underline,blink", "default",
 
 
430
                 "bold,underline,blink"),
 
 
432
                 "bold,standout", "default", "bold,standout"),
 
 
433
                ("underline-blink-standout",
 
 
434
                 "underline,blink,standout", "default",
 
 
435
                 "underline,blink,standout"),
 
 
436
                ("bold-underline-blink-standout",
 
 
437
                 "bold,underline,blink,standout", "default",
 
 
438
                 "bold,underline,blink,standout"),
 
443
441
        if urwid.supports_unicode():
 
444
 
            self.divider = u"─" # \u2500
 
445
 
            #self.divider = u"━" # \u2501
 
 
442
            self.divider = "─"  # \u2500
 
447
 
            #self.divider = u"-" # \u002d
 
448
 
            self.divider = u"_" # \u005f
 
 
444
            self.divider = "_"  # \u005f
 
450
446
        self.screen.start()
 
452
448
        self.size = self.screen.get_cols_rows()
 
454
450
        self.clients = urwid.SimpleListWalker([])
 
455
451
        self.clients_dict = {}
 
457
453
        # We will add Text widgets to this list
 
 
454
        self.log = urwid.SimpleListWalker([])
 
459
455
        self.max_log_length = max_log_length
 
461
457
        # We keep a reference to the log widget so we can remove it
 
462
458
        # from the ListWalker without it getting destroyed
 
463
459
        self.logbox = ConstrainedListBox(self.log)
 
465
461
        # This keeps track of whether self.uilist currently has
 
466
462
        # self.logbox in it or not
 
467
463
        self.log_visible = True
 
468
 
        self.log_wrap = u"any"
 
 
464
        self.log_wrap = "any"
 
 
466
        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,
 
 
469
        self.add_log_line(("bold",
 
 
470
                           "Mandos Monitor version " + version))
 
 
471
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
 
473
        self.busname = domain + ".Mandos"
 
 
474
        self.main_loop = GLib.MainLoop()
 
 
476
    def client_not_found(self, key_id, address):
 
 
477
        log.info("Client with address %s and key ID %s could"
 
 
478
                 " not be found", address, key_id)
 
526
480
    def rebuild(self):
 
527
481
        """This rebuilds the User Interface.
 
528
482
        Call this when the widget layout needs to change"""
 
530
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
 
484
        # self.uilist.append(urwid.ListBox(self.clients))
 
531
485
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
533
 
                                       #header=urwid.Divider(),
 
 
487
                                       # header=urwid.Divider(),
 
536
 
                                       urwid.Divider(div_char=
 
 
489
                                       footer=urwid.Divider(
 
 
490
                                           div_char=self.divider)))
 
538
491
        if self.log_visible:
 
539
492
            self.uilist.append(self.logbox)
 
541
493
        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."""
 
 
495
    def add_log_line(self, markup):
 
549
496
        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")
 
 
497
        if self.max_log_length:
 
 
498
            if len(self.log) > self.max_log_length:
 
 
499
                del self.log[0:(len(self.log) - self.max_log_length)]
 
 
500
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
557
504
    def toggle_log_display(self):
 
558
505
        """Toggle visibility of the log buffer."""
 
559
506
        self.log_visible = not self.log_visible
 
561
 
        #self.log_message(u"Log visibility changed to: "
 
562
 
        #                 + unicode(self.log_visible))
 
 
508
        log.debug("Log visibility changed to: %s", self.log_visible)
 
564
510
    def change_log_display(self):
 
565
511
        """Change type of log display.
 
566
512
        Currently, this toggles wrapping of text lines."""
 
567
 
        if self.log_wrap == u"clip":
 
568
 
            self.log_wrap = u"any"
 
 
513
        if self.log_wrap == "clip":
 
 
514
            self.log_wrap = "any"
 
570
 
            self.log_wrap = u"clip"
 
 
516
            self.log_wrap = "clip"
 
571
517
        for textwidget in self.log:
 
572
518
            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
 
 
519
        log.debug("Wrap mode: %s", self.log_wrap)
 
 
521
    def find_and_remove_client(self, path, interfaces):
 
 
522
        """Find a client by its object path and remove it.
 
 
524
        This is connected to the InterfacesRemoved signal from the
 
579
525
        Mandos server object."""
 
 
526
        if client_interface not in interfaces:
 
 
527
            # Not a Mandos client object; ignore
 
581
530
            client = self.clients_dict[path]
 
585
 
        self.remove_client(client, path)
 
587
 
    def add_new_client(self, path):
 
 
533
            log.warning("Unknown client %s removed", path)
 
 
537
    def add_new_client(self, path, ifs_and_props):
 
 
538
        """Find a client by its object path and remove it.
 
 
540
        This is connected to the InterfacesAdded signal from the
 
 
541
        Mandos server object.
 
 
543
        if client_interface not in ifs_and_props:
 
 
544
            # Not a Mandos client object; ignore
 
588
546
        client_proxy_object = self.bus.get_object(self.busname, path)
 
589
 
        self.add_client(MandosClientWidget(server_proxy_object
 
592
 
                                           =client_proxy_object,
 
 
547
        self.add_client(MandosClientWidget(
 
 
548
            server_proxy_object=self.mandos_serv,
 
 
549
            proxy_object=client_proxy_object,
 
 
550
            update_hook=self.refresh,
 
 
551
            delete_hook=self.remove_client,
 
 
552
            properties=dict(ifs_and_props[client_interface])),
 
601
555
    def add_client(self, client, path=None):
 
602
556
        self.clients.append(client)
 
604
558
            path = client.proxy.object_path
 
605
559
        self.clients_dict[path] = client
 
606
 
        self.clients.sort(None, lambda c: c.properties[u"Name"])
 
 
560
        self.clients.sort(key=lambda c: c.properties["Name"])
 
609
563
    def remove_client(self, client, path=None):
 
610
564
        self.clients.remove(client)
 
612
566
            path = client.proxy.object_path
 
613
567
        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
570
    def refresh(self):
 
622
571
        """Redraw the screen"""
 
623
572
        canvas = self.topwidget.render(self.size, focus=True)
 
624
573
        self.screen.draw_screen(self.size, canvas)
 
627
576
        """Start the main loop and exit when it's done."""
 
 
577
        log.addHandler(self.loghandler)
 
 
578
        self.orig_log_propagate = log.propagate
 
 
579
        log.propagate = False
 
 
580
        self.orig_log_level = log.level
 
 
582
        self.bus = dbus.SystemBus()
 
 
583
        mandos_dbus_objc = self.bus.get_object(
 
 
584
            self.busname, "/", follow_name_owner_changes=True)
 
 
585
        self.mandos_serv = dbus.Interface(
 
 
586
            mandos_dbus_objc, dbus_interface=server_interface)
 
 
588
            mandos_clients = (self.mandos_serv
 
 
589
                              .GetAllClientsWithProperties())
 
 
590
            if not mandos_clients:
 
 
591
                log.warning("Note: Server has no clients.")
 
 
592
        except dbus.exceptions.DBusException:
 
 
593
            log.warning("Note: No Mandos server running.")
 
 
594
            mandos_clients = dbus.Dictionary()
 
 
597
         .connect_to_signal("InterfacesRemoved",
 
 
598
                            self.find_and_remove_client,
 
 
599
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
602
         .connect_to_signal("InterfacesAdded",
 
 
604
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
607
         .connect_to_signal("ClientNotFound",
 
 
608
                            self.client_not_found,
 
 
609
                            dbus_interface=server_interface,
 
 
611
        for path, client in mandos_clients.items():
 
 
612
            client_proxy_object = self.bus.get_object(self.busname,
 
 
614
            self.add_client(MandosClientWidget(
 
 
615
                server_proxy_object=self.mandos_serv,
 
 
616
                proxy_object=client_proxy_object,
 
 
618
                update_hook=self.refresh,
 
 
619
                delete_hook=self.remove_client),
 
629
 
        self._input_callback_tag = (gobject.io_add_watch
 
 
623
        self._input_callback_tag = (
 
 
625
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
 
626
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
 
627
                glib_safely(self.process_input)))
 
633
628
        self.main_loop.run()
 
634
629
        # Main loop has finished, we should close everything now
 
635
 
        gobject.source_remove(self._input_callback_tag)
 
 
630
        GLib.source_remove(self._input_callback_tag)
 
 
631
        with warnings.catch_warnings():
 
 
632
            warnings.simplefilter("ignore", BytesWarning)
 
639
636
        self.main_loop.quit()
 
 
637
        log.removeHandler(self.loghandler)
 
 
638
        log.propagate = self.orig_log_propagate
 
641
640
    def process_input(self, source, condition):
 
642
641
        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
 
 
642
        translations = {"ctrl n": "down",       # Emacs
 
 
643
                        "ctrl p": "up",         # Emacs
 
 
644
                        "ctrl v": "page down",  # Emacs
 
 
645
                        "meta v": "page up",    # Emacs
 
 
646
                        " ": "page down",       # less
 
 
647
                        "f": "page down",       # less
 
 
648
                        "b": "page up",         # less
 
655
654
                key = translations[key]
 
656
655
            except KeyError:    # :-)
 
659
 
            if key == u"q" or key == u"Q":
 
 
658
            if key == "q" or key == "Q":
 
662
 
            elif key == u"window resize":
 
 
661
            elif key == "window resize":
 
663
662
                self.size = self.screen.get_cols_rows()
 
665
 
            elif key == u"\f":  # Ctrl-L
 
 
664
            elif key == "ctrl l":
 
667
 
            elif key == u"l" or key == u"D":
 
 
667
            elif key == "l" or key == "D":
 
668
668
                self.toggle_log_display()
 
670
 
            elif key == u"w" or key == u"i":
 
 
670
            elif key == "w" or key == "i":
 
671
671
                self.change_log_display()
 
673
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
 
673
            elif key == "?" or key == "f1" or key == "esc":
 
674
674
                if not self.log_visible:
 
675
675
                    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",
 
 
677
                self.add_log_line(("bold",
 
 
680
                                              "l: Log window toggle",
 
 
681
                                              "TAB: Switch window",
 
 
682
                                              "w: Wrap (log lines)",
 
 
683
                                              "v: Toggle verbose log",
 
 
685
                self.add_log_line(("bold",
 
 
686
                                   "  ".join(("Clients:",
 
 
690
                                              "s: Start new checker",
 
697
698
                if self.topwidget.get_focus() is self.logbox:
 
698
699
                    self.topwidget.set_focus(0)
 
700
701
                    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
 
 
704
                if log.level < logging.INFO:
 
 
705
                    log.setLevel(logging.INFO)
 
 
706
                    log.info("Verbose mode: Off")
 
 
708
                    log.setLevel(logging.NOTSET)
 
 
709
                    log.info("Verbose mode: On")
 
 
710
            # elif (key == "end" or key == "meta >" or key == "G"
 
 
712
            #     pass            # xxx end-of-buffer
 
 
713
            # elif (key == "home" or key == "meta <" or key == "g"
 
 
715
            #     pass            # xxx beginning-of-buffer
 
 
716
            # elif key == "ctrl e" or key == "$":
 
 
717
            #     pass            # xxx move-end-of-line
 
 
718
            # elif key == "ctrl a" or key == "^":
 
 
719
            #     pass            # xxx move-beginning-of-line
 
 
720
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
 
722
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
 
725
            #     pass            # scroll up log
 
 
727
            #     pass            # scroll down log
 
720
728
            elif self.topwidget.selectable():
 
721
729
                self.topwidget.keypress(self.size, key)
 
 
734
class UILogHandler(logging.Handler):
 
 
735
    def __init__(self, ui, *args, **kwargs):
 
 
737
        super(UILogHandler, self).__init__(*args, **kwargs)
 
 
739
            logging.Formatter("%(asctime)s: %(message)s"))
 
 
740
    def emit(self, record):
 
 
741
        msg = self.format(record)
 
 
742
        if record.levelno > logging.INFO:
 
 
744
        self.ui.add_log_line(msg)
 
725
747
ui = UserInterface()
 
728
750
except KeyboardInterrupt:
 
731
 
    ui.log_message(unicode(e))
 
 
751
    with warnings.catch_warnings():
 
 
752
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
755
    with warnings.catch_warnings():
 
 
756
        warnings.filterwarnings("ignore", "", BytesWarning)