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#!/usr/bin/python3 -bbI
 
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# -*- mode: python; coding: utf-8 -*-
 
 
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# Mandos Monitor - Control and monitor the Mandos server
 
 
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# Copyright © 2009-2019 Teddy Hogeborn
 
 
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# Copyright © 2009-2019 Björn Påhlsson
 
 
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# This file is part of Mandos.
 
 
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# Mandos is free software: you can redistribute it and/or modify it
 
 
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# under the terms of the GNU General Public License as published by
 
 
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# the Free Software Foundation, either version 3 of the License, or
 
 
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# (at your option) any later version.
 
 
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#     Mandos is distributed in the hope that it will be useful, but
 
 
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#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
 
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#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
 
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#     GNU General Public License for more details.
 
 
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# You should have received a copy of the GNU General Public License
 
 
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# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
 
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# Contact the authors at <mandos@recompile.se>.
 
 
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from __future__ import (division, absolute_import, print_function,
 
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from __future__ import division, absolute_import, with_statement
 
 
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    from future_builtins import *
 
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import urwid.curses_display
 
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from dbus.mainloop.glib import DBusGMainLoop
 
 
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from gi.repository import GLib
 
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locale.setlocale(locale.LC_ALL, u'')
 
 
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if sys.version_info.major == 2:
 
 
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# Show warnings by default
 
 
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if not sys.warnoptions:
 
 
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    warnings.simplefilter("default")
 
 
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log = logging.getLogger(os.path.basename(sys.argv[0]))
 
 
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logging.basicConfig(level="NOTSET", # Show all messages
 
 
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                    format="%(message)s") # Show basic log messages
 
 
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logging.captureWarnings(True)   # Show warnings via the logging system
 
 
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locale.setlocale(locale.LC_ALL, "")
 
 
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logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
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# Some useful constants
 
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domain = 'se.bsnet.fukt'
 
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server_interface = domain + '.Mandos'
 
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client_interface = domain + '.Mandos.Client'
 
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# Always run in monochrome mode
 
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urwid.curses_display.curses.has_colors = lambda : False
 
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# Urwid doesn't support blinking, but we want it.  Since we have no
 
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# use for underline on its own, we make underline also always blink.
 
37
 
urwid.curses_display.curses.A_UNDERLINE |= (
 
38
 
    urwid.curses_display.curses.A_BLINK)
 
40
 
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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        super(MandosClientPropertyCache, self).__init__(
 
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            proxy_object=proxy_object, *args, **kwargs)
 
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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
 
 
120
        It updates the changed properties in the "properties" dict.
 
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        # Update properties dict with new value
 
65
 
        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,
 
73
 
                 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
 
79
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        self.server_proxy_object = server_proxy_object
 
 
143
        self._update_timer_callback_tag = None
 
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        # The widget shown normally
 
84
 
        self._text_widget = urwid.Text(u"")
 
 
146
        self._text_widget = urwid.Text("")
 
85
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        # The widget shown when we have focus
 
86
 
        self._focus_text_widget = urwid.Text(u"")
 
87
 
        super(MandosClientWidget, self).__init__(
 
88
 
            update_hook=update_hook, delete_hook=delete_hook,
 
 
148
        self._focus_text_widget = urwid.Text("")
 
 
149
        super(MandosClientWidget, self).__init__(**kwargs)
 
91
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        self.opened = False
 
92
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
93
 
                                     self.checker_completed,
 
96
 
        self.proxy.connect_to_signal(u"CheckerStarted",
 
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        self.proxy.connect_to_signal(u"GotSecret",
 
104
 
        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"])
 
 
176
    def using_timer(self, flag):
 
 
177
        """Call this method with True or False when timer should be
 
 
178
        activated or deactivated.
 
 
180
        if flag and self._update_timer_callback_tag is None:
 
 
181
            # Will update the shown timer value every second
 
 
182
            self._update_timer_callback_tag = (
 
 
183
                GLib.timeout_add(1000,
 
 
184
                                 glib_safely(self.update_timer)))
 
 
185
        elif not (flag or self._update_timer_callback_tag is None):
 
 
186
            GLib.source_remove(self._update_timer_callback_tag)
 
 
187
            self._update_timer_callback_tag = None
 
109
189
    def checker_completed(self, exitstatus, condition, command):
 
110
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        if exitstatus == 0:
 
111
 
            self.logger(u'Checker for client %s (command "%s")'
 
113
 
                        % (self.properties[u"name"], command))
 
 
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            log.debug('Checker for client %s (command "%s")'
 
 
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                      " succeeded", self.properties["Name"], command)
 
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        if os.WIFEXITED(condition):
 
116
 
            self.logger(u'Checker for client %s (command "%s")'
 
117
 
                        u' failed with exit code %s'
 
118
 
                        % (self.properties[u"name"], command,
 
119
 
                           os.WEXITSTATUS(condition)))
 
121
 
        if os.WIFSIGNALED(condition):
 
122
 
            self.logger(u'Checker for client %s (command "%s")'
 
123
 
                        u' was killed by signal %s'
 
124
 
                        % (self.properties[u"name"], command,
 
125
 
                           os.WTERMSIG(condition)))
 
127
 
        if os.WCOREDUMP(condition):
 
128
 
            self.logger(u'Checker for client %s (command "%s")'
 
130
 
                        % (self.properties[u"name"], command))
 
131
 
        self.logger(u'Checker for client %s completed mysteriously')
 
 
197
            log.info('Checker for client %s (command "%s") failed'
 
 
198
                     " with exit code %d", self.properties["Name"],
 
 
199
                     command, os.WEXITSTATUS(condition))
 
 
200
        elif os.WIFSIGNALED(condition):
 
 
201
            log.info('Checker for client %s (command "%s") was'
 
 
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                     " killed by signal %d", self.properties["Name"],
 
 
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                     command, os.WTERMSIG(condition))
 
133
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    def checker_started(self, command):
 
134
 
        self.logger(u'Client %s started checker "%s"'
 
135
 
                    % (self.properties[u"name"], unicode(command)))
 
 
207
        """Server signals that a checker started."""
 
 
208
        log.debug('Client %s started checker "%s"',
 
 
209
                  self.properties["Name"], command)
 
137
211
    def got_secret(self):
 
138
 
        self.logger(u'Client %s received its secret'
 
139
 
                    % self.properties[u"name"])
 
142
 
        self.logger(u'Client %s was rejected'
 
143
 
                    % self.properties[u"name"])
 
 
212
        log.info("Client %s received its secret",
 
 
213
                 self.properties["Name"])
 
 
215
    def need_approval(self, timeout, default):
 
 
217
            message = "Client %s needs approval within %f seconds"
 
 
219
            message = "Client %s will get its secret in %f seconds"
 
 
220
        log.info(message, self.properties["Name"], timeout/1000)
 
 
222
    def rejected(self, reason):
 
 
223
        log.info("Client %s was rejected; reason: %s",
 
 
224
                 self.properties["Name"], reason)
 
145
226
    def selectable(self):
 
146
227
        """Make this a "selectable" widget.
 
147
228
        This overrides the method from urwid.FlowWidget."""
 
150
 
    def rows(self, (maxcol,), focus=False):
 
 
231
    def rows(self, maxcolrow, focus=False):
 
151
232
        """How many rows this widget will occupy might depend on
 
152
233
        whether we have focus or not.
 
153
234
        This overrides the method from urwid.FlowWidget"""
 
154
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
 
235
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
156
237
    def current_widget(self, focus=False):
 
157
238
        if focus or self.opened:
 
158
239
            return self._focus_widget
 
159
240
        return self._widget
 
161
242
    def update(self):
 
162
243
        "Called when what is visible on the screen should be updated."
 
163
244
        # How to add standout mode to a style
 
164
 
        with_standout = { u"normal": u"standout",
 
165
 
                          u"bold": u"bold-standout",
 
167
 
                              u"underline-blink-standout",
 
168
 
                          u"bold-underline-blink":
 
169
 
                              u"bold-underline-blink-standout",
 
 
245
        with_standout = {"normal": "standout",
 
 
246
                         "bold": "bold-standout",
 
 
248
                         "underline-blink-standout",
 
 
249
                         "bold-underline-blink":
 
 
250
                         "bold-underline-blink-standout",
 
172
253
        # Rebuild focus and non-focus widgets using current properties
 
173
 
        self._text = (u'%(name)s: %(enabled)s'
 
174
 
                      % { u"name": self.properties[u"name"],
 
177
 
                               if self.properties[u"enabled"]
 
 
255
        # Base part of a client. Name!
 
 
256
        base = "{name}: ".format(name=self.properties["Name"])
 
 
257
        if not self.properties["Enabled"]:
 
 
259
            self.using_timer(False)
 
 
260
        elif self.properties["ApprovalPending"]:
 
 
261
            timeout = datetime.timedelta(
 
 
262
                milliseconds=self.properties["ApprovalDelay"])
 
 
263
            last_approval_request = isoformat_to_datetime(
 
 
264
                self.properties["LastApprovalRequest"])
 
 
265
            if last_approval_request is not None:
 
 
266
                timer = max(timeout - (datetime.datetime.utcnow()
 
 
267
                                       - last_approval_request),
 
 
268
                            datetime.timedelta())
 
 
270
                timer = datetime.timedelta()
 
 
271
            if self.properties["ApprovedByDefault"]:
 
 
272
                message = "Approval in {}. (d)eny?"
 
 
274
                message = "Denial in {}. (a)pprove?"
 
 
275
            message = message.format(str(timer).rsplit(".", 1)[0])
 
 
276
            self.using_timer(True)
 
 
277
        elif self.properties["LastCheckerStatus"] != 0:
 
 
278
            # When checker has failed, show timer until client expires
 
 
279
            expires = self.properties["Expires"]
 
 
281
                timer = datetime.timedelta(0)
 
 
283
                expires = (datetime.datetime.strptime
 
 
284
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
 
285
                timer = max(expires - datetime.datetime.utcnow(),
 
 
286
                            datetime.timedelta())
 
 
287
            message = ("A checker has failed! Time until client"
 
 
289
                       .format(str(timer).rsplit(".", 1)[0]))
 
 
290
            self.using_timer(True)
 
 
293
            self.using_timer(False)
 
 
294
        self._text = "{}{}".format(base, message)
 
179
296
        if not urwid.supports_unicode():
 
180
297
            self._text = self._text.encode("ascii", "replace")
 
181
 
        textlist = [(u"normal", self._text)]
 
 
298
        textlist = [("normal", self._text)]
 
182
299
        self._text_widget.set_text(textlist)
 
183
300
        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
191
308
        # Run update hook, if any
 
192
309
        if self.update_hook is not None:
 
193
310
            self.update_hook()
 
 
312
    def update_timer(self):
 
 
313
        """called by GLib. Will indefinitely loop until
 
 
314
        GLib.source_remove() on tag is called
 
 
317
        return True             # Keep calling this
 
 
319
    def delete(self, **kwargs):
 
 
320
        if self._update_timer_callback_tag is not None:
 
 
321
            GLib.source_remove(self._update_timer_callback_tag)
 
 
322
            self._update_timer_callback_tag = None
 
 
323
        for match in self.match_objects:
 
 
325
        self.match_objects = ()
 
196
326
        if self.delete_hook is not None:
 
197
327
            self.delete_hook(self)
 
199
 
    def render(self, (maxcol,), focus=False):
 
 
328
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
330
    def render(self, maxcolrow, focus=False):
 
200
331
        """Render differently if we have focus.
 
201
332
        This overrides the method from urwid.FlowWidget"""
 
202
 
        return self.current_widget(focus).render((maxcol,),
 
 
333
        return self.current_widget(focus).render(maxcolrow,
 
205
 
    def keypress(self, (maxcol,), key):
 
 
336
    def keypress(self, maxcolrow, key):
 
207
338
        This overrides the method from urwid.FlowWidget"""
 
208
 
        if key == u"e" or key == u"+":
 
210
 
        elif key == u"d" or key == u"-":
 
212
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
 
340
            self.proxy.Set(client_interface, "Enabled",
 
 
341
                           dbus.Boolean(True), ignore_reply=True,
 
 
342
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
344
            self.proxy.Set(client_interface, "Enabled", False,
 
 
346
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
348
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
 
349
                               dbus_interface=client_interface,
 
 
352
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
 
353
                               dbus_interface=client_interface,
 
 
355
        elif key == "R" or key == "_" or key == "ctrl k":
 
213
356
            self.server_proxy_object.RemoveClient(self.proxy
 
216
 
            self.proxy.StartChecker()
 
218
 
            self.proxy.StopChecker()
 
220
 
            self.proxy.CheckedOK()
 
 
360
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
361
                           dbus.Boolean(True), ignore_reply=True,
 
 
362
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
364
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
365
                           dbus.Boolean(False), ignore_reply=True,
 
 
366
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
368
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
222
 
#         elif key == u"p" or key == "=":
 
 
371
#         elif key == "p" or key == "=":
 
223
372
#             self.proxy.pause()
 
224
 
#         elif key == u"u" or key == ":":
 
 
373
#         elif key == "u" or key == ":":
 
225
374
#             self.proxy.unpause()
 
226
 
#         elif key == u"RET":
 
231
 
    def property_changed(self, property=None, value=None,
 
233
 
        """Call self.update() if old value is not new value.
 
 
380
    def properties_changed(self, interface, properties, invalidated):
 
 
381
        """Call self.update() if any properties changed.
 
234
382
        This overrides the method from MandosClientPropertyCache"""
 
235
 
        property_name = unicode(property)
 
236
 
        old_value = self.properties.get(property_name)
 
237
 
        super(MandosClientWidget, self).property_changed(
 
238
 
            property=property, value=value, *args, **kwargs)
 
239
 
        if self.properties.get(property_name) != old_value:
 
 
383
        old_values = {key: self.properties.get(key)
 
 
384
                      for key in properties.keys()}
 
 
385
        super(MandosClientWidget, self).properties_changed(
 
 
386
            interface, properties, invalidated)
 
 
387
        if any(old_values[key] != self.properties.get(key)
 
 
388
               for key in old_values):
 
 
392
def glib_safely(func, retval=True):
 
 
393
    def safe_func(*args, **kwargs):
 
 
395
            return func(*args, **kwargs)
 
243
402
class ConstrainedListBox(urwid.ListBox):
 
244
403
    """Like a normal urwid.ListBox, but will consume all "up" or
 
245
404
    "down" key presses, thus not allowing any containing widgets to
 
246
405
    use them as an excuse to shift focus away from this widget.
 
248
 
    def keypress(self, (maxcol, maxrow), key):
 
249
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
 
250
 
        if ret in (u"up", u"down"):
 
 
407
    def keypress(self, *args, **kwargs):
 
 
408
        ret = (super(ConstrainedListBox, self)
 
 
409
               .keypress(*args, **kwargs))
 
 
410
        if ret in ("up", "down"):
 
255
 
class UserInterface(object):
 
256
416
    """This is the entire user interface - the whole screen
 
257
417
    with boxes, lists of client widgets, etc.
 
259
419
    def __init__(self, max_log_length=1000):
 
260
420
        DBusGMainLoop(set_as_default=True)
 
262
422
        self.screen = urwid.curses_display.Screen()
 
264
424
        self.screen.register_palette((
 
266
 
                 u"default", u"default", None),
 
268
 
                 u"default", u"default", u"bold"),
 
270
 
                 u"default", u"default", u"underline"),
 
272
 
                 u"default", u"default", u"standout"),
 
273
 
                (u"bold-underline-blink",
 
274
 
                 u"default", u"default", (u"bold", u"underline")),
 
276
 
                 u"default", u"default", (u"bold", u"standout")),
 
277
 
                (u"underline-blink-standout",
 
278
 
                 u"default", u"default", (u"underline", u"standout")),
 
279
 
                (u"bold-underline-blink-standout",
 
280
 
                 u"default", u"default", (u"bold", u"underline",
 
 
426
                 "default", "default", None),
 
 
428
                 "bold", "default", "bold"),
 
 
430
                 "underline,blink", "default", "underline,blink"),
 
 
432
                 "standout", "default", "standout"),
 
 
433
                ("bold-underline-blink",
 
 
434
                 "bold,underline,blink", "default",
 
 
435
                 "bold,underline,blink"),
 
 
437
                 "bold,standout", "default", "bold,standout"),
 
 
438
                ("underline-blink-standout",
 
 
439
                 "underline,blink,standout", "default",
 
 
440
                 "underline,blink,standout"),
 
 
441
                ("bold-underline-blink-standout",
 
 
442
                 "bold,underline,blink,standout", "default",
 
 
443
                 "bold,underline,blink,standout"),
 
284
446
        if urwid.supports_unicode():
 
285
 
            self.divider = u"─" # \u2500
 
286
 
            #self.divider = u"━" # \u2501
 
 
447
            self.divider = "─"  # \u2500
 
288
 
            #self.divider = u"-" # \u002d
 
289
 
            self.divider = u"_" # \u005f
 
 
449
            self.divider = "_"  # \u005f
 
291
451
        self.screen.start()
 
293
453
        self.size = self.screen.get_cols_rows()
 
295
455
        self.clients = urwid.SimpleListWalker([])
 
296
456
        self.clients_dict = {}
 
298
458
        # We will add Text widgets to this list
 
 
459
        self.log = urwid.SimpleListWalker([])
 
300
460
        self.max_log_length = max_log_length
 
302
462
        # We keep a reference to the log widget so we can remove it
 
303
463
        # from the ListWalker without it getting destroyed
 
304
464
        self.logbox = ConstrainedListBox(self.log)
 
306
466
        # This keeps track of whether self.uilist currently has
 
307
467
        # self.logbox in it or not
 
308
468
        self.log_visible = True
 
309
 
        self.log_wrap = u"any"
 
 
469
        self.log_wrap = "any"
 
 
471
        self.loghandler = UILogHandler(self)
 
312
 
        self.log_message_raw((u"bold",
 
313
 
                              u"Mandos Monitor version " + version))
 
314
 
        self.log_message_raw((u"bold",
 
317
 
        self.busname = domain + '.Mandos'
 
318
 
        self.main_loop = gobject.MainLoop()
 
319
 
        self.bus = dbus.SystemBus()
 
320
 
        mandos_dbus_objc = self.bus.get_object(
 
321
 
            self.busname, u"/", follow_name_owner_changes=True)
 
322
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
326
 
            mandos_clients = (self.mandos_serv
 
327
 
                              .GetAllClientsWithProperties())
 
328
 
        except dbus.exceptions.DBusException:
 
329
 
            mandos_clients = dbus.Dictionary()
 
332
 
         .connect_to_signal(u"ClientRemoved",
 
333
 
                            self.find_and_remove_client,
 
334
 
                            dbus_interface=server_interface,
 
337
 
         .connect_to_signal(u"ClientAdded",
 
339
 
                            dbus_interface=server_interface,
 
342
 
         .connect_to_signal(u"ClientNotFound",
 
343
 
                            self.client_not_found,
 
344
 
                            dbus_interface=server_interface,
 
346
 
        for path, client in mandos_clients.iteritems():
 
347
 
            client_proxy_object = self.bus.get_object(self.busname,
 
349
 
            self.add_client(MandosClientWidget(server_proxy_object
 
352
 
                                               =client_proxy_object,
 
362
 
    def client_not_found(self, fingerprint, address):
 
363
 
        self.log_message((u"Client with address %s and fingerprint %s"
 
364
 
                          u" could not be found" % (address,
 
 
474
        self.add_log_line(("bold",
 
 
475
                           "Mandos Monitor version " + version))
 
 
476
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
 
478
        self.busname = domain + ".Mandos"
 
 
479
        self.main_loop = GLib.MainLoop()
 
 
481
    def client_not_found(self, key_id, address):
 
 
482
        log.info("Client with address %s and key ID %s could"
 
 
483
                 " not be found", address, key_id)
 
367
485
    def rebuild(self):
 
368
486
        """This rebuilds the User Interface.
 
369
487
        Call this when the widget layout needs to change"""
 
371
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
372
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
373
 
                                       #header=urwid.Divider(),
 
 
489
        # self.uilist.append(urwid.ListBox(self.clients))
 
 
490
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
 
492
                                       # header=urwid.Divider(),
 
375
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
 
494
                                       footer=urwid.Divider(
 
 
495
                                           div_char=self.divider)))
 
376
496
        if self.log_visible:
 
377
497
            self.uilist.append(self.logbox)
 
379
498
        self.topwidget = urwid.Pile(self.uilist)
 
381
 
    def log_message(self, message):
 
382
 
        timestamp = datetime.datetime.now().isoformat()
 
383
 
        self.log_message_raw(timestamp + u": " + message)
 
385
 
    def log_message_raw(self, markup):
 
386
 
        """Add a log message to the log buffer."""
 
 
500
    def add_log_line(self, markup):
 
387
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
388
 
        if (self.max_log_length
 
389
 
            and len(self.log) > self.max_log_length):
 
390
 
            del self.log[0:len(self.log)-self.max_log_length-1]
 
391
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
392
 
                              coming_from=u"above")
 
 
502
        if self.max_log_length:
 
 
503
            if len(self.log) > self.max_log_length:
 
 
504
                del self.log[0:(len(self.log) - self.max_log_length)]
 
 
505
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
395
509
    def toggle_log_display(self):
 
396
510
        """Toggle visibility of the log buffer."""
 
397
511
        self.log_visible = not self.log_visible
 
399
 
        self.log_message(u"Log visibility changed to: "
 
400
 
                         + unicode(self.log_visible))
 
 
513
        log.debug("Log visibility changed to: %s", self.log_visible)
 
402
515
    def change_log_display(self):
 
403
516
        """Change type of log display.
 
404
517
        Currently, this toggles wrapping of text lines."""
 
405
 
        if self.log_wrap == u"clip":
 
406
 
            self.log_wrap = u"any"
 
 
518
        if self.log_wrap == "clip":
 
 
519
            self.log_wrap = "any"
 
408
 
            self.log_wrap = u"clip"
 
 
521
            self.log_wrap = "clip"
 
409
522
        for textwidget in self.log:
 
410
523
            textwidget.set_wrap_mode(self.log_wrap)
 
411
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
413
 
    def find_and_remove_client(self, path, name):
 
414
 
        """Find an client from its object path and remove it.
 
416
 
        This is connected to the ClientRemoved signal from the
 
 
524
        log.debug("Wrap mode: %s", self.log_wrap)
 
 
526
    def find_and_remove_client(self, path, interfaces):
 
 
527
        """Find a client by its object path and remove it.
 
 
529
        This is connected to the InterfacesRemoved signal from the
 
417
530
        Mandos server object."""
 
 
531
        if client_interface not in interfaces:
 
 
532
            # Not a Mandos client object; ignore
 
419
535
            client = self.clients_dict[path]
 
423
 
        self.remove_client(client, path)
 
425
 
    def add_new_client(self, path):
 
 
538
            log.warning("Unknown client %s removed", path)
 
 
542
    def add_new_client(self, path, ifs_and_props):
 
 
543
        """Find a client by its object path and remove it.
 
 
545
        This is connected to the InterfacesAdded signal from the
 
 
546
        Mandos server object.
 
 
548
        if client_interface not in ifs_and_props:
 
 
549
            # Not a Mandos client object; ignore
 
426
551
        client_proxy_object = self.bus.get_object(self.busname, path)
 
427
 
        self.add_client(MandosClientWidget(server_proxy_object
 
430
 
                                           =client_proxy_object,
 
 
552
        self.add_client(MandosClientWidget(
 
 
553
            server_proxy_object=self.mandos_serv,
 
 
554
            proxy_object=client_proxy_object,
 
 
555
            update_hook=self.refresh,
 
 
556
            delete_hook=self.remove_client,
 
 
557
            properties=dict(ifs_and_props[client_interface])),
 
439
560
    def add_client(self, client, path=None):
 
440
561
        self.clients.append(client)
 
442
563
            path = client.proxy.object_path
 
443
564
        self.clients_dict[path] = client
 
444
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
 
565
        self.clients.sort(key=lambda c: c.properties["Name"])
 
447
568
    def remove_client(self, client, path=None):
 
448
569
        self.clients.remove(client)
 
450
571
            path = client.proxy.object_path
 
451
572
        del self.clients_dict[path]
 
452
 
        if not self.clients_dict:
 
453
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
454
 
            # is completely emptied, we need to recreate it.
 
455
 
            self.clients = urwid.SimpleListWalker([])
 
459
575
    def refresh(self):
 
460
576
        """Redraw the screen"""
 
461
577
        canvas = self.topwidget.render(self.size, focus=True)
 
462
578
        self.screen.draw_screen(self.size, canvas)
 
465
581
        """Start the main loop and exit when it's done."""
 
 
582
        log.addHandler(self.loghandler)
 
 
583
        self.orig_log_propagate = log.propagate
 
 
584
        log.propagate = False
 
 
585
        self.orig_log_level = log.level
 
 
587
        self.bus = dbus.SystemBus()
 
 
588
        mandos_dbus_objc = self.bus.get_object(
 
 
589
            self.busname, "/", follow_name_owner_changes=True)
 
 
590
        self.mandos_serv = dbus.Interface(
 
 
591
            mandos_dbus_objc, dbus_interface=server_interface)
 
 
593
            mandos_clients = (self.mandos_serv
 
 
594
                              .GetAllClientsWithProperties())
 
 
595
            if not mandos_clients:
 
 
596
                log.warning("Note: Server has no clients.")
 
 
597
        except dbus.exceptions.DBusException:
 
 
598
            log.warning("Note: No Mandos server running.")
 
 
599
            mandos_clients = dbus.Dictionary()
 
 
602
         .connect_to_signal("InterfacesRemoved",
 
 
603
                            self.find_and_remove_client,
 
 
604
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
607
         .connect_to_signal("InterfacesAdded",
 
 
609
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
612
         .connect_to_signal("ClientNotFound",
 
 
613
                            self.client_not_found,
 
 
614
                            dbus_interface=server_interface,
 
 
616
        for path, client in mandos_clients.items():
 
 
617
            client_proxy_object = self.bus.get_object(self.busname,
 
 
619
            self.add_client(MandosClientWidget(
 
 
620
                server_proxy_object=self.mandos_serv,
 
 
621
                proxy_object=client_proxy_object,
 
 
623
                update_hook=self.refresh,
 
 
624
                delete_hook=self.remove_client),
 
467
 
        self._input_callback_tag = (gobject.io_add_watch
 
 
628
        self._input_callback_tag = (
 
 
630
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
 
631
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
 
632
                glib_safely(self.process_input)))
 
471
633
        self.main_loop.run()
 
472
634
        # Main loop has finished, we should close everything now
 
473
 
        gobject.source_remove(self._input_callback_tag)
 
 
635
        GLib.source_remove(self._input_callback_tag)
 
 
636
        with warnings.catch_warnings():
 
 
637
            warnings.simplefilter("ignore", BytesWarning)
 
477
641
        self.main_loop.quit()
 
 
642
        log.removeHandler(self.loghandler)
 
 
643
        log.propagate = self.orig_log_propagate
 
479
645
    def process_input(self, source, condition):
 
480
646
        keys = self.screen.get_input()
 
481
 
        translations = { u"ctrl n": u"down",      # Emacs
 
482
 
                         u"ctrl p": u"up",        # Emacs
 
483
 
                         u"ctrl v": u"page down", # Emacs
 
484
 
                         u"meta v": u"page up",   # Emacs
 
485
 
                         u" ": u"page down",      # less
 
486
 
                         u"f": u"page down",      # less
 
487
 
                         u"b": u"page up",        # less
 
 
647
        translations = {"ctrl n": "down",       # Emacs
 
 
648
                        "ctrl p": "up",         # Emacs
 
 
649
                        "ctrl v": "page down",  # Emacs
 
 
650
                        "meta v": "page up",    # Emacs
 
 
651
                        " ": "page down",       # less
 
 
652
                        "f": "page down",       # less
 
 
653
                        "b": "page up",         # less
 
493
659
                key = translations[key]
 
494
660
            except KeyError:    # :-)
 
497
 
            if key == u"q" or key == u"Q":
 
 
663
            if key == "q" or key == "Q":
 
500
 
            elif key == u"window resize":
 
 
666
            elif key == "window resize":
 
501
667
                self.size = self.screen.get_cols_rows()
 
503
 
            elif key == u"\f":  # Ctrl-L
 
 
669
            elif key == "ctrl l":
 
505
 
            elif key == u"l" or key == u"D":
 
 
672
            elif key == "l" or key == "D":
 
506
673
                self.toggle_log_display()
 
508
 
            elif key == u"w" or key == u"i":
 
 
675
            elif key == "w" or key == "i":
 
509
676
                self.change_log_display()
 
511
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
 
678
            elif key == "?" or key == "f1" or key == "esc":
 
512
679
                if not self.log_visible:
 
513
680
                    self.log_visible = True
 
515
 
                self.log_message_raw((u"bold",
 
519
 
                                            u"l: Log window toggle",
 
520
 
                                            u"TAB: Switch window",
 
522
 
                self.log_message_raw((u"bold",
 
528
 
                                             u"s: Start new checker",
 
 
682
                self.add_log_line(("bold",
 
 
685
                                              "l: Log window toggle",
 
 
686
                                              "TAB: Switch window",
 
 
687
                                              "w: Wrap (log lines)",
 
 
688
                                              "v: Toggle verbose log",
 
 
690
                self.add_log_line(("bold",
 
 
691
                                   "  ".join(("Clients:",
 
 
695
                                              "s: Start new checker",
 
533
703
                if self.topwidget.get_focus() is self.logbox:
 
534
704
                    self.topwidget.set_focus(0)
 
536
706
                    self.topwidget.set_focus(self.logbox)
 
538
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
540
 
            #    pass            # xxx end-of-buffer
 
541
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
543
 
            #    pass            # xxx beginning-of-buffer
 
544
 
            #elif key == u"ctrl e" or key == u"$":
 
545
 
            #    pass            # xxx move-end-of-line
 
546
 
            #elif key == u"ctrl a" or key == u"^":
 
547
 
            #    pass            # xxx move-beginning-of-line
 
548
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
550
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
553
 
            #    pass            # scroll up log
 
555
 
            #    pass            # scroll down log
 
 
709
                if log.level < logging.INFO:
 
 
710
                    log.setLevel(logging.INFO)
 
 
711
                    log.info("Verbose mode: Off")
 
 
713
                    log.setLevel(logging.NOTSET)
 
 
714
                    log.info("Verbose mode: On")
 
 
715
            # elif (key == "end" or key == "meta >" or key == "G"
 
 
717
            #     pass            # xxx end-of-buffer
 
 
718
            # elif (key == "home" or key == "meta <" or key == "g"
 
 
720
            #     pass            # xxx beginning-of-buffer
 
 
721
            # elif key == "ctrl e" or key == "$":
 
 
722
            #     pass            # xxx move-end-of-line
 
 
723
            # elif key == "ctrl a" or key == "^":
 
 
724
            #     pass            # xxx move-beginning-of-line
 
 
725
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
 
727
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
 
730
            #     pass            # scroll up log
 
 
732
            #     pass            # scroll down log
 
556
733
            elif self.topwidget.selectable():
 
557
734
                self.topwidget.keypress(self.size, key)
 
 
739
class UILogHandler(logging.Handler):
 
 
740
    def __init__(self, ui, *args, **kwargs):
 
 
742
        super(UILogHandler, self).__init__(*args, **kwargs)
 
 
744
            logging.Formatter("%(asctime)s: %(message)s"))
 
 
745
    def emit(self, record):
 
 
746
        msg = self.format(record)
 
 
747
        if record.levelno > logging.INFO:
 
 
749
        self.ui.add_log_line(msg)
 
561
752
ui = UserInterface()
 
565
 
    ui.log_message(unicode(e))
 
 
755
except KeyboardInterrupt:
 
 
756
    with warnings.catch_warnings():
 
 
757
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
760
    with warnings.catch_warnings():
 
 
761
        warnings.filterwarnings("ignore", "", BytesWarning)