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#!/usr/bin/python3 -bbI
 
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# -*- mode: python; coding: utf-8 -*-
 
 
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# Mandos Monitor - Control and monitor the Mandos server
 
 
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# Copyright © 2009-2019 Teddy Hogeborn
 
 
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# Copyright © 2009-2019 Björn Påhlsson
 
 
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# This file is part of Mandos.
 
 
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# Mandos is free software: you can redistribute it and/or modify it
 
 
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# under the terms of the GNU General Public License as published by
 
 
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# the Free Software Foundation, either version 3 of the License, or
 
 
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# (at your option) any later version.
 
 
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#     Mandos is distributed in the hope that it will be useful, but
 
 
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#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
 
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#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
 
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#     GNU General Public License for more details.
 
 
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# You should have received a copy of the GNU General Public License
 
 
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# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
 
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# Contact the authors at <mandos@recompile.se>.
 
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from __future__ import division, absolute_import, 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
 
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urwid.curses_display.curses.has_colors = lambda : False
 
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# Urwid doesn't support blinking, but we want it.  Since we have no
 
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# use for underline on its own, we make underline also always blink.
 
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urwid.curses_display.curses.A_UNDERLINE |= (
 
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    urwid.curses_display.curses.A_BLINK)
 
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class MandosClientPropertyCache(object):
 
 
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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("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:
 
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    """This wraps a Mandos Client D-Bus proxy object, caches the
 
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    properties and calls a hook function when any of them are
 
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    def __init__(self, proxy_object=None, *args, **kwargs):
 
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        self.proxy = proxy_object # Mandos Client proxy object
 
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        self.properties = dict()
 
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        self.proxy.connect_to_signal(u"PropertyChanged",
 
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                                     self.property_changed,
 
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        self.properties.update(
 
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            self.proxy.GetAll(client_interface,
 
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                              dbus_interface = dbus.PROPERTIES_IFACE))
 
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        #XXX This break good super behaviour!
 
62
 
#        super(MandosClientPropertyCache, self).__init__(
 
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    def property_changed(self, property=None, value=None):
 
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        """This is called whenever we get a PropertyChanged signal
 
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        It updates the changed property in the "properties" dict.
 
 
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    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
 
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        self.proxy = proxy_object  # Mandos Client proxy object
 
 
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        self.properties = dict() if properties is None else properties
 
 
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        self.property_changed_match = (
 
 
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            self.proxy.connect_to_signal("PropertiesChanged",
 
 
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                                         self.properties_changed,
 
 
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                                         dbus.PROPERTIES_IFACE,
 
 
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        if properties is None:
 
 
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            self.properties.update(self.proxy.GetAll(
 
 
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                dbus_interface=dbus.PROPERTIES_IFACE))
 
 
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        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
 
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    def properties_changed(self, interface, properties, invalidated):
 
 
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        """This is called whenever we get a PropertiesChanged signal
 
 
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        It updates the changed properties in the "properties" dict.
 
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        # Update properties dict with new value
 
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        self.properties[property] = value
 
 
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        if interface == client_interface:
 
 
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            self.properties.update(properties)
 
 
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        self.property_changed_match.remove()
 
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class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
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    """A Mandos Client which is visible on the screen.
 
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    def __init__(self, server_proxy_object=None, update_hook=None,
 
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                 delete_hook=None, logger=None, *args, **kwargs):
 
 
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                 delete_hook=None, **kwargs):
 
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        # Called on update
 
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        self.update_hook = update_hook
 
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        # Called on delete
 
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        self.delete_hook = delete_hook
 
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        # Mandos Server proxy object
 
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        self.server_proxy_object = server_proxy_object
 
 
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        self._update_timer_callback_tag = None
 
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        # The widget shown normally
 
89
 
        self._text_widget = urwid.Text(u"")
 
 
141
        self._text_widget = urwid.Text("")
 
90
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        # The widget shown when we have focus
 
91
 
        self._focus_text_widget = urwid.Text(u"")
 
92
 
        super(MandosClientWidget, self).__init__(
 
93
 
            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
 
97
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
98
 
                                     self.checker_completed,
 
101
 
        self.proxy.connect_to_signal(u"CheckerStarted",
 
102
 
                                     self.checker_started,
 
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        self.proxy.connect_to_signal(u"GotSecret",
 
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        self.proxy.connect_to_signal(u"NeedApproval",
 
113
 
        self.proxy.connect_to_signal(u"Rejected",
 
 
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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"])
 
 
171
    def using_timer(self, flag):
 
 
172
        """Call this method with True or False when timer should be
 
 
173
        activated or deactivated.
 
 
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,
 
 
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                                 glib_safely(self.update_timer)))
 
 
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        elif not (flag or self._update_timer_callback_tag is None):
 
 
181
            GLib.source_remove(self._update_timer_callback_tag)
 
 
182
            self._update_timer_callback_tag = None
 
118
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    def checker_completed(self, exitstatus, condition, command):
 
119
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        if exitstatus == 0:
 
120
 
            #self.logger(u'Checker for client %s (command "%s")'
 
122
 
            #            % (self.properties[u"name"], command))
 
 
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            log.debug('Checker for client %s (command "%s")'
 
 
187
                      " succeeded", self.properties["Name"], command)
 
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        if os.WIFEXITED(condition):
 
125
 
            self.logger(u'Checker for client %s (command "%s")'
 
126
 
                        u' failed with exit code %s'
 
127
 
                        % (self.properties[u"name"], command,
 
128
 
                           os.WEXITSTATUS(condition)))
 
130
 
        if os.WIFSIGNALED(condition):
 
131
 
            self.logger(u'Checker for client %s (command "%s")'
 
132
 
                        u' was killed by signal %s'
 
133
 
                        % (self.properties[u"name"], command,
 
134
 
                           os.WTERMSIG(condition)))
 
136
 
        if os.WCOREDUMP(condition):
 
137
 
            self.logger(u'Checker for client %s (command "%s")'
 
139
 
                        % (self.properties[u"name"], command))
 
140
 
        self.logger(u'Checker for client %s completed mysteriously')
 
 
192
            log.info('Checker for client %s (command "%s") failed'
 
 
193
                     " with exit code %d", self.properties["Name"],
 
 
194
                     command, os.WEXITSTATUS(condition))
 
 
195
        elif os.WIFSIGNALED(condition):
 
 
196
            log.info('Checker for client %s (command "%s") was'
 
 
197
                     " killed by signal %d", self.properties["Name"],
 
 
198
                     command, os.WTERMSIG(condition))
 
142
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    def checker_started(self, command):
 
143
 
        #self.logger(u'Client %s started checker "%s"'
 
144
 
        #            % (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)
 
147
206
    def got_secret(self):
 
148
 
        self.logger(u'Client %s received its secret'
 
149
 
                    % self.properties[u"name"])
 
 
207
        log.info("Client %s received its secret",
 
 
208
                 self.properties["Name"])
 
151
210
    def need_approval(self, timeout, default):
 
153
 
            message = u'Client %s needs approval within %s seconds'
 
 
212
            message = "Client %s needs approval within %f seconds"
 
155
 
            message = u'Client %s will get its secret in %s seconds'
 
157
 
                    % (self.properties[u"name"], timeout/1000))
 
 
214
            message = "Client %s will get its secret in %f seconds"
 
 
215
        log.info(message, self.properties["Name"], timeout/1000)
 
159
217
    def rejected(self, reason):
 
160
 
        self.logger(u'Client %s was rejected; reason: %s'
 
161
 
                    % (self.properties[u"name"], reason))
 
 
218
        log.info("Client %s was rejected; reason: %s",
 
 
219
                 self.properties["Name"], reason)
 
163
221
    def selectable(self):
 
164
222
        """Make this a "selectable" widget.
 
165
223
        This overrides the method from urwid.FlowWidget."""
 
168
 
    def rows(self, (maxcol,), focus=False):
 
 
226
    def rows(self, maxcolrow, focus=False):
 
169
227
        """How many rows this widget will occupy might depend on
 
170
228
        whether we have focus or not.
 
171
229
        This overrides the method from urwid.FlowWidget"""
 
172
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
 
230
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
174
232
    def current_widget(self, focus=False):
 
175
233
        if focus or self.opened:
 
176
234
            return self._focus_widget
 
177
235
        return self._widget
 
179
237
    def update(self):
 
180
238
        "Called when what is visible on the screen should be updated."
 
181
239
        # How to add standout mode to a style
 
182
 
        with_standout = { u"normal": u"standout",
 
183
 
                          u"bold": u"bold-standout",
 
185
 
                              u"underline-blink-standout",
 
186
 
                          u"bold-underline-blink":
 
187
 
                              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",
 
190
248
        # Rebuild focus and non-focus widgets using current properties
 
192
250
        # Base part of a client. Name!
 
193
 
        self._text = (u'%(name)s: '
 
194
 
                      % {u"name": self.properties[u"name"]})
 
 
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"])
 
 
258
            last_approval_request = isoformat_to_datetime(
 
 
259
                self.properties["LastApprovalRequest"])
 
 
260
            if last_approval_request is not None:
 
 
261
                timer = max(timeout - (datetime.datetime.utcnow()
 
 
262
                                       - last_approval_request),
 
 
263
                            datetime.timedelta())
 
 
265
                timer = datetime.timedelta()
 
 
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)
 
 
288
            self.using_timer(False)
 
 
289
        self._text = "{}{}".format(base, message)
 
196
 
        if self.properties[u"approved_pending"]:
 
197
 
            if self.properties[u"approved_by_default"]:
 
198
 
                self._text += u"Connection established to client. (d)eny?"
 
200
 
                self._text += u"Seeks approval to send secret. (a)pprove?"
 
202
 
            self._text += (u'%(enabled)s'
 
205
 
                                if self.properties[u"enabled"]
 
207
291
        if not urwid.supports_unicode():
 
208
292
            self._text = self._text.encode("ascii", "replace")
 
209
 
        textlist = [(u"normal", self._text)]
 
 
293
        textlist = [("normal", self._text)]
 
210
294
        self._text_widget.set_text(textlist)
 
211
295
        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
219
303
        # Run update hook, if any
 
220
304
        if self.update_hook is not None:
 
221
305
            self.update_hook()
 
 
307
    def update_timer(self):
 
 
308
        """called by GLib. Will indefinitely loop until
 
 
309
        GLib.source_remove() on tag is called
 
 
312
        return True             # Keep calling this
 
 
314
    def delete(self, **kwargs):
 
 
315
        if self._update_timer_callback_tag is not None:
 
 
316
            GLib.source_remove(self._update_timer_callback_tag)
 
 
317
            self._update_timer_callback_tag = None
 
 
318
        for match in self.match_objects:
 
 
320
        self.match_objects = ()
 
224
321
        if self.delete_hook is not None:
 
225
322
            self.delete_hook(self)
 
227
 
    def render(self, (maxcol,), focus=False):
 
 
323
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
325
    def render(self, maxcolrow, focus=False):
 
228
326
        """Render differently if we have focus.
 
229
327
        This overrides the method from urwid.FlowWidget"""
 
230
 
        return self.current_widget(focus).render((maxcol,),
 
 
328
        return self.current_widget(focus).render(maxcolrow,
 
233
 
    def keypress(self, (maxcol,), key):
 
 
331
    def keypress(self, maxcolrow, key):
 
235
333
        This overrides the method from urwid.FlowWidget"""
 
237
 
            self.proxy.Enable(dbus_interface = client_interface)
 
239
 
            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)
 
241
343
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
242
 
                               dbus_interface = client_interface)
 
 
344
                               dbus_interface=client_interface,
 
244
347
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
245
 
                                  dbus_interface = client_interface)
 
246
 
        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":
 
247
351
            self.server_proxy_object.RemoveClient(self.proxy
 
250
 
            self.proxy.StartChecker(dbus_interface = client_interface)
 
252
 
            self.proxy.StopChecker(dbus_interface = client_interface)
 
254
 
            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,
 
256
 
#         elif key == u"p" or key == "=":
 
 
366
#         elif key == "p" or key == "=":
 
257
367
#             self.proxy.pause()
 
258
 
#         elif key == u"u" or key == ":":
 
 
368
#         elif key == "u" or key == ":":
 
259
369
#             self.proxy.unpause()
 
260
 
#         elif key == u"RET":
 
263
 
#            self.proxy.Approve(True)
 
265
 
#            self.proxy.Approve(False)
 
269
 
    def property_changed(self, property=None, value=None,
 
271
 
        """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.
 
272
377
        This overrides the method from MandosClientPropertyCache"""
 
273
 
        property_name = unicode(property)
 
274
 
        old_value = self.properties.get(property_name)
 
275
 
        super(MandosClientWidget, self).property_changed(
 
276
 
            property=property, value=value, *args, **kwargs)
 
277
 
        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)
 
281
397
class ConstrainedListBox(urwid.ListBox):
 
282
398
    """Like a normal urwid.ListBox, but will consume all "up" or
 
283
399
    "down" key presses, thus not allowing any containing widgets to
 
284
400
    use them as an excuse to shift focus away from this widget.
 
286
 
    def keypress(self, (maxcol, maxrow), key):
 
287
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
 
288
 
        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"):
 
293
 
class UserInterface(object):
 
294
411
    """This is the entire user interface - the whole screen
 
295
412
    with boxes, lists of client widgets, etc.
 
297
414
    def __init__(self, max_log_length=1000):
 
298
415
        DBusGMainLoop(set_as_default=True)
 
300
417
        self.screen = urwid.curses_display.Screen()
 
302
419
        self.screen.register_palette((
 
304
 
                 u"default", u"default", None),
 
306
 
                 u"default", u"default", u"bold"),
 
308
 
                 u"default", u"default", u"underline"),
 
310
 
                 u"default", u"default", u"standout"),
 
311
 
                (u"bold-underline-blink",
 
312
 
                 u"default", u"default", (u"bold", u"underline")),
 
314
 
                 u"default", u"default", (u"bold", u"standout")),
 
315
 
                (u"underline-blink-standout",
 
316
 
                 u"default", u"default", (u"underline", u"standout")),
 
317
 
                (u"bold-underline-blink-standout",
 
318
 
                 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"),
 
322
441
        if urwid.supports_unicode():
 
323
 
            self.divider = u"─" # \u2500
 
324
 
            #self.divider = u"━" # \u2501
 
 
442
            self.divider = "─"  # \u2500
 
326
 
            #self.divider = u"-" # \u002d
 
327
 
            self.divider = u"_" # \u005f
 
 
444
            self.divider = "_"  # \u005f
 
329
446
        self.screen.start()
 
331
448
        self.size = self.screen.get_cols_rows()
 
333
450
        self.clients = urwid.SimpleListWalker([])
 
334
451
        self.clients_dict = {}
 
336
453
        # We will add Text widgets to this list
 
 
454
        self.log = urwid.SimpleListWalker([])
 
338
455
        self.max_log_length = max_log_length
 
340
457
        # We keep a reference to the log widget so we can remove it
 
341
458
        # from the ListWalker without it getting destroyed
 
342
459
        self.logbox = ConstrainedListBox(self.log)
 
344
461
        # This keeps track of whether self.uilist currently has
 
345
462
        # self.logbox in it or not
 
346
463
        self.log_visible = True
 
347
 
        self.log_wrap = u"any"
 
 
464
        self.log_wrap = "any"
 
 
466
        self.loghandler = UILogHandler(self)
 
350
 
        self.log_message_raw((u"bold",
 
351
 
                              u"Mandos Monitor version " + version))
 
352
 
        self.log_message_raw((u"bold",
 
355
 
        self.busname = domain + '.Mandos'
 
356
 
        self.main_loop = gobject.MainLoop()
 
357
 
        self.bus = dbus.SystemBus()
 
358
 
        mandos_dbus_objc = self.bus.get_object(
 
359
 
            self.busname, u"/", follow_name_owner_changes=True)
 
360
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
364
 
            mandos_clients = (self.mandos_serv
 
365
 
                              .GetAllClientsWithProperties())
 
366
 
        except dbus.exceptions.DBusException:
 
367
 
            mandos_clients = dbus.Dictionary()
 
370
 
         .connect_to_signal(u"ClientRemoved",
 
371
 
                            self.find_and_remove_client,
 
372
 
                            dbus_interface=server_interface,
 
375
 
         .connect_to_signal(u"ClientAdded",
 
377
 
                            dbus_interface=server_interface,
 
380
 
         .connect_to_signal(u"ClientNotFound",
 
381
 
                            self.client_not_found,
 
382
 
                            dbus_interface=server_interface,
 
384
 
        for path, client in mandos_clients.iteritems():
 
385
 
            client_proxy_object = self.bus.get_object(self.busname,
 
387
 
            self.add_client(MandosClientWidget(server_proxy_object
 
390
 
                                               =client_proxy_object,
 
400
 
    def client_not_found(self, fingerprint, address):
 
401
 
        self.log_message((u"Client with address %s and fingerprint %s"
 
402
 
                          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)
 
405
480
    def rebuild(self):
 
406
481
        """This rebuilds the User Interface.
 
407
482
        Call this when the widget layout needs to change"""
 
409
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
410
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
411
 
                                       #header=urwid.Divider(),
 
 
484
        # self.uilist.append(urwid.ListBox(self.clients))
 
 
485
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
 
487
                                       # header=urwid.Divider(),
 
413
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
 
489
                                       footer=urwid.Divider(
 
 
490
                                           div_char=self.divider)))
 
414
491
        if self.log_visible:
 
415
492
            self.uilist.append(self.logbox)
 
417
493
        self.topwidget = urwid.Pile(self.uilist)
 
419
 
    def log_message(self, message):
 
420
 
        timestamp = datetime.datetime.now().isoformat()
 
421
 
        self.log_message_raw(timestamp + u": " + message)
 
423
 
    def log_message_raw(self, markup):
 
424
 
        """Add a log message to the log buffer."""
 
 
495
    def add_log_line(self, markup):
 
425
496
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
426
 
        if (self.max_log_length
 
427
 
            and len(self.log) > self.max_log_length):
 
428
 
            del self.log[0:len(self.log)-self.max_log_length-1]
 
429
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
430
 
                              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,
 
433
504
    def toggle_log_display(self):
 
434
505
        """Toggle visibility of the log buffer."""
 
435
506
        self.log_visible = not self.log_visible
 
437
 
        self.log_message(u"Log visibility changed to: "
 
438
 
                         + unicode(self.log_visible))
 
 
508
        log.debug("Log visibility changed to: %s", self.log_visible)
 
440
510
    def change_log_display(self):
 
441
511
        """Change type of log display.
 
442
512
        Currently, this toggles wrapping of text lines."""
 
443
 
        if self.log_wrap == u"clip":
 
444
 
            self.log_wrap = u"any"
 
 
513
        if self.log_wrap == "clip":
 
 
514
            self.log_wrap = "any"
 
446
 
            self.log_wrap = u"clip"
 
 
516
            self.log_wrap = "clip"
 
447
517
        for textwidget in self.log:
 
448
518
            textwidget.set_wrap_mode(self.log_wrap)
 
449
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
451
 
    def find_and_remove_client(self, path, name):
 
452
 
        """Find an client from its object path and remove it.
 
454
 
        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
 
455
525
        Mandos server object."""
 
 
526
        if client_interface not in interfaces:
 
 
527
            # Not a Mandos client object; ignore
 
457
530
            client = self.clients_dict[path]
 
461
 
        self.remove_client(client, path)
 
463
 
    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
 
464
546
        client_proxy_object = self.bus.get_object(self.busname, path)
 
465
 
        self.add_client(MandosClientWidget(server_proxy_object
 
468
 
                                           =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])),
 
477
555
    def add_client(self, client, path=None):
 
478
556
        self.clients.append(client)
 
480
558
            path = client.proxy.object_path
 
481
559
        self.clients_dict[path] = client
 
482
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
 
560
        self.clients.sort(key=lambda c: c.properties["Name"])
 
485
563
    def remove_client(self, client, path=None):
 
486
564
        self.clients.remove(client)
 
488
566
            path = client.proxy.object_path
 
489
567
        del self.clients_dict[path]
 
490
 
        if not self.clients_dict:
 
491
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
492
 
            # is completely emptied, we need to recreate it.
 
493
 
            self.clients = urwid.SimpleListWalker([])
 
497
570
    def refresh(self):
 
498
571
        """Redraw the screen"""
 
499
572
        canvas = self.topwidget.render(self.size, focus=True)
 
500
573
        self.screen.draw_screen(self.size, canvas)
 
503
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),
 
505
 
        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)))
 
509
628
        self.main_loop.run()
 
510
629
        # Main loop has finished, we should close everything now
 
511
 
        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)
 
515
636
        self.main_loop.quit()
 
 
637
        log.removeHandler(self.loghandler)
 
 
638
        log.propagate = self.orig_log_propagate
 
517
640
    def process_input(self, source, condition):
 
518
641
        keys = self.screen.get_input()
 
519
 
        translations = { u"ctrl n": u"down",      # Emacs
 
520
 
                         u"ctrl p": u"up",        # Emacs
 
521
 
                         u"ctrl v": u"page down", # Emacs
 
522
 
                         u"meta v": u"page up",   # Emacs
 
523
 
                         u" ": u"page down",      # less
 
524
 
                         u"f": u"page down",      # less
 
525
 
                         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
 
531
654
                key = translations[key]
 
532
655
            except KeyError:    # :-)
 
535
 
            if key == u"q" or key == u"Q":
 
 
658
            if key == "q" or key == "Q":
 
538
 
            elif key == u"window resize":
 
 
661
            elif key == "window resize":
 
539
662
                self.size = self.screen.get_cols_rows()
 
541
 
            elif key == u"\f":  # Ctrl-L
 
 
664
            elif key == "ctrl l":
 
543
 
            elif key == u"l" or key == u"D":
 
 
667
            elif key == "l" or key == "D":
 
544
668
                self.toggle_log_display()
 
546
 
            elif key == u"w" or key == u"i":
 
 
670
            elif key == "w" or key == "i":
 
547
671
                self.change_log_display()
 
549
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
 
673
            elif key == "?" or key == "f1" or key == "esc":
 
550
674
                if not self.log_visible:
 
551
675
                    self.log_visible = True
 
553
 
                self.log_message_raw((u"bold",
 
557
 
                                            u"l: Log window toggle",
 
558
 
                                            u"TAB: Switch window",
 
560
 
                self.log_message_raw((u"bold",
 
566
 
                                             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",
 
573
698
                if self.topwidget.get_focus() is self.logbox:
 
574
699
                    self.topwidget.set_focus(0)
 
576
701
                    self.topwidget.set_focus(self.logbox)
 
578
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
580
 
            #    pass            # xxx end-of-buffer
 
581
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
583
 
            #    pass            # xxx beginning-of-buffer
 
584
 
            #elif key == u"ctrl e" or key == u"$":
 
585
 
            #    pass            # xxx move-end-of-line
 
586
 
            #elif key == u"ctrl a" or key == u"^":
 
587
 
            #    pass            # xxx move-beginning-of-line
 
588
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
590
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
593
 
            #    pass            # scroll up log
 
595
 
            #    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
 
596
728
            elif self.topwidget.selectable():
 
597
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)
 
601
747
ui = UserInterface()
 
605
 
    ui.log_message(unicode(e))
 
 
750
except KeyboardInterrupt:
 
 
751
    with warnings.catch_warnings():
 
 
752
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
755
    with warnings.catch_warnings():
 
 
756
        warnings.filterwarnings("ignore", "", BytesWarning)