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#!/usr/bin/python3 -bbI
 
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# -*- mode: python; coding: utf-8 -*-
 
 
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# Mandos Monitor - Control and monitor the Mandos server
 
 
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# Copyright © 2009-2019 Teddy Hogeborn
 
 
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# Copyright © 2009-2019 Björn Påhlsson
 
 
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# This file is part of Mandos.
 
 
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# Mandos is free software: you can redistribute it and/or modify it
 
 
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# under the terms of the GNU General Public License as published by
 
 
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# the Free Software Foundation, either version 3 of the License, or
 
 
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# (at your option) any later version.
 
 
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#     Mandos is distributed in the hope that it will be useful, but
 
 
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#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
 
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#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
 
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#     GNU General Public License for more details.
 
 
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# You should have received a copy of the GNU General Public License
 
 
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# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
 
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# Contact the authors at <mandos@recompile.se>.
 
 
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from __future__ import (division, absolute_import, print_function,
 
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from __future__ import division, absolute_import, with_statement
 
 
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    from future_builtins import *
 
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import urwid.curses_display
 
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from dbus.mainloop.glib import DBusGMainLoop
 
 
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from gi.repository import GLib
 
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locale.setlocale(locale.LC_ALL, u'')
 
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logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
 
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if sys.version_info.major == 2:
 
 
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# Show warnings by default
 
 
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if not sys.warnoptions:
 
 
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    warnings.simplefilter("default")
 
 
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log = logging.getLogger(os.path.basename(sys.argv[0]))
 
 
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logging.basicConfig(level="NOTSET", # Show all messages
 
 
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                    format="%(message)s") # Show basic log messages
 
 
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logging.captureWarnings(True)   # Show warnings via the logging system
 
 
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locale.setlocale(locale.LC_ALL, "")
 
 
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logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
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# Some useful constants
 
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domain = 'se.bsnet.fukt'
 
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server_interface = domain + '.Mandos'
 
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client_interface = domain + '.Mandos.Client'
 
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# Always run in monochrome mode
 
36
 
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.
 
40
 
urwid.curses_display.curses.A_UNDERLINE |= (
 
41
 
    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)
 
 
118
    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
 
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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
 
84
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        self.server_proxy_object = server_proxy_object
 
 
143
        self._update_timer_callback_tag = None
 
88
145
        # The widget shown normally
 
89
 
        self._text_widget = urwid.Text(u"")
 
 
146
        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,
 
 
148
        self._focus_text_widget = urwid.Text("")
 
 
149
        super(MandosClientWidget, self).__init__(**kwargs)
 
96
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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,
 
105
 
        self.proxy.connect_to_signal(u"GotSecret",
 
109
 
        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"])
 
 
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
 
118
189
    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")'
 
 
192
                      " succeeded", self.properties["Name"], command)
 
124
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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')
 
 
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'
 
 
202
                     " killed by signal %d", self.properties["Name"],
 
 
203
                     command, os.WTERMSIG(condition))
 
142
206
    def checker_started(self, command):
 
143
 
        #self.logger(u'Client %s started checker "%s"'
 
144
 
        #            % (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)
 
147
211
    def got_secret(self):
 
148
 
        self.logger(u'Client %s received its secret'
 
149
 
                    % self.properties[u"name"])
 
 
212
        log.info("Client %s received its secret",
 
 
213
                 self.properties["Name"])
 
151
215
    def need_approval(self, timeout, default):
 
153
 
            message = u'Client %s needs approval within %s seconds'
 
 
217
            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))
 
 
219
            message = "Client %s will get its secret in %f seconds"
 
 
220
        log.info(message, self.properties["Name"], timeout/1000)
 
159
222
    def rejected(self, reason):
 
160
 
        self.logger(u'Client %s was rejected; reason: %s'
 
161
 
                    % (self.properties[u"name"], reason))
 
 
223
        log.info("Client %s was rejected; reason: %s",
 
 
224
                 self.properties["Name"], reason)
 
163
226
    def selectable(self):
 
164
227
        """Make this a "selectable" widget.
 
165
228
        This overrides the method from urwid.FlowWidget."""
 
168
 
    def rows(self, (maxcol,), focus=False):
 
 
231
    def rows(self, maxcolrow, focus=False):
 
169
232
        """How many rows this widget will occupy might depend on
 
170
233
        whether we have focus or not.
 
171
234
        This overrides the method from urwid.FlowWidget"""
 
172
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
 
235
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
174
237
    def current_widget(self, focus=False):
 
175
238
        if focus or self.opened:
 
176
239
            return self._focus_widget
 
177
240
        return self._widget
 
179
242
    def update(self):
 
180
243
        "Called when what is visible on the screen should be updated."
 
181
244
        # 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",
 
 
245
        with_standout = {"normal": "standout",
 
 
246
                         "bold": "bold-standout",
 
 
248
                         "underline-blink-standout",
 
 
249
                         "bold-underline-blink":
 
 
250
                         "bold-underline-blink-standout",
 
190
253
        # Rebuild focus and non-focus widgets using current properties
 
192
255
        # Base part of a client. Name!
 
193
 
        self._text = (u'%(name)s: '
 
194
 
                      % {u"name": self.properties[u"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)
 
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
296
        if not urwid.supports_unicode():
 
208
297
            self._text = self._text.encode("ascii", "replace")
 
209
 
        textlist = [(u"normal", self._text)]
 
 
298
        textlist = [("normal", self._text)]
 
210
299
        self._text_widget.set_text(textlist)
 
211
300
        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
219
308
        # Run update hook, if any
 
220
309
        if self.update_hook is not None:
 
221
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 = ()
 
224
326
        if self.delete_hook is not None:
 
225
327
            self.delete_hook(self)
 
227
 
    def render(self, (maxcol,), focus=False):
 
 
328
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
330
    def render(self, maxcolrow, focus=False):
 
228
331
        """Render differently if we have focus.
 
229
332
        This overrides the method from urwid.FlowWidget"""
 
230
 
        return self.current_widget(focus).render((maxcol,),
 
 
333
        return self.current_widget(focus).render(maxcolrow,
 
233
 
    def keypress(self, (maxcol,), key):
 
 
336
    def keypress(self, maxcolrow, key):
 
235
338
        This overrides the method from urwid.FlowWidget"""
 
237
 
            self.proxy.Enable(dbus_interface = client_interface)
 
239
 
            self.proxy.Disable(dbus_interface = client_interface)
 
 
340
            self.proxy.Set(client_interface, "Enabled",
 
 
341
                           dbus.Boolean(True), ignore_reply=True,
 
 
342
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
344
            self.proxy.Set(client_interface, "Enabled", False,
 
 
346
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
241
348
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
242
 
                               dbus_interface = client_interface)
 
 
349
                               dbus_interface=client_interface,
 
244
352
            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":
 
 
353
                               dbus_interface=client_interface,
 
 
355
        elif key == "R" or key == "_" or key == "ctrl k":
 
247
356
            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)
 
 
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,
 
256
 
#         elif key == u"p" or key == "=":
 
 
371
#         elif key == "p" or key == "=":
 
257
372
#             self.proxy.pause()
 
258
 
#         elif key == u"u" or key == ":":
 
 
373
#         elif key == "u" or key == ":":
 
259
374
#             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.
 
 
380
    def properties_changed(self, interface, properties, invalidated):
 
 
381
        """Call self.update() if any properties changed.
 
272
382
        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:
 
 
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)
 
281
402
class ConstrainedListBox(urwid.ListBox):
 
282
403
    """Like a normal urwid.ListBox, but will consume all "up" or
 
283
404
    "down" key presses, thus not allowing any containing widgets to
 
284
405
    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"):
 
 
407
    def keypress(self, *args, **kwargs):
 
 
408
        ret = (super(ConstrainedListBox, self)
 
 
409
               .keypress(*args, **kwargs))
 
 
410
        if ret in ("up", "down"):
 
293
 
class UserInterface(object):
 
294
416
    """This is the entire user interface - the whole screen
 
295
417
    with boxes, lists of client widgets, etc.
 
297
419
    def __init__(self, max_log_length=1000):
 
298
420
        DBusGMainLoop(set_as_default=True)
 
300
422
        self.screen = urwid.curses_display.Screen()
 
302
424
        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",
 
 
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"),
 
322
446
        if urwid.supports_unicode():
 
323
 
            self.divider = u"─" # \u2500
 
324
 
            #self.divider = u"━" # \u2501
 
 
447
            self.divider = "─"  # \u2500
 
326
 
            #self.divider = u"-" # \u002d
 
327
 
            self.divider = u"_" # \u005f
 
 
449
            self.divider = "_"  # \u005f
 
329
451
        self.screen.start()
 
331
453
        self.size = self.screen.get_cols_rows()
 
333
455
        self.clients = urwid.SimpleListWalker([])
 
334
456
        self.clients_dict = {}
 
336
458
        # We will add Text widgets to this list
 
 
459
        self.log = urwid.SimpleListWalker([])
 
338
460
        self.max_log_length = max_log_length
 
340
462
        # We keep a reference to the log widget so we can remove it
 
341
463
        # from the ListWalker without it getting destroyed
 
342
464
        self.logbox = ConstrainedListBox(self.log)
 
344
466
        # This keeps track of whether self.uilist currently has
 
345
467
        # self.logbox in it or not
 
346
468
        self.log_visible = True
 
347
 
        self.log_wrap = u"any"
 
 
469
        self.log_wrap = "any"
 
 
471
        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,
 
 
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)
 
405
485
    def rebuild(self):
 
406
486
        """This rebuilds the User Interface.
 
407
487
        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(),
 
 
489
        # self.uilist.append(urwid.ListBox(self.clients))
 
 
490
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
 
492
                                       # header=urwid.Divider(),
 
413
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
 
494
                                       footer=urwid.Divider(
 
 
495
                                           div_char=self.divider)))
 
414
496
        if self.log_visible:
 
415
497
            self.uilist.append(self.logbox)
 
417
498
        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."""
 
 
500
    def add_log_line(self, markup):
 
425
501
        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")
 
 
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,
 
433
509
    def toggle_log_display(self):
 
434
510
        """Toggle visibility of the log buffer."""
 
435
511
        self.log_visible = not self.log_visible
 
437
 
        self.log_message(u"Log visibility changed to: "
 
438
 
                         + unicode(self.log_visible))
 
 
513
        log.debug("Log visibility changed to: %s", self.log_visible)
 
440
515
    def change_log_display(self):
 
441
516
        """Change type of log display.
 
442
517
        Currently, this toggles wrapping of text lines."""
 
443
 
        if self.log_wrap == u"clip":
 
444
 
            self.log_wrap = u"any"
 
 
518
        if self.log_wrap == "clip":
 
 
519
            self.log_wrap = "any"
 
446
 
            self.log_wrap = u"clip"
 
 
521
            self.log_wrap = "clip"
 
447
522
        for textwidget in self.log:
 
448
523
            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
 
 
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
 
455
530
        Mandos server object."""
 
 
531
        if client_interface not in interfaces:
 
 
532
            # Not a Mandos client object; ignore
 
457
535
            client = self.clients_dict[path]
 
461
 
        self.remove_client(client, path)
 
463
 
    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
 
464
551
        client_proxy_object = self.bus.get_object(self.busname, path)
 
465
 
        self.add_client(MandosClientWidget(server_proxy_object
 
468
 
                                           =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])),
 
477
560
    def add_client(self, client, path=None):
 
478
561
        self.clients.append(client)
 
480
563
            path = client.proxy.object_path
 
481
564
        self.clients_dict[path] = client
 
482
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
 
565
        self.clients.sort(key=lambda c: c.properties["Name"])
 
485
568
    def remove_client(self, client, path=None):
 
486
569
        self.clients.remove(client)
 
488
571
            path = client.proxy.object_path
 
489
572
        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
575
    def refresh(self):
 
498
576
        """Redraw the screen"""
 
499
577
        canvas = self.topwidget.render(self.size, focus=True)
 
500
578
        self.screen.draw_screen(self.size, canvas)
 
503
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),
 
505
 
        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)))
 
509
633
        self.main_loop.run()
 
510
634
        # Main loop has finished, we should close everything now
 
511
 
        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)
 
515
641
        self.main_loop.quit()
 
 
642
        log.removeHandler(self.loghandler)
 
 
643
        log.propagate = self.orig_log_propagate
 
517
645
    def process_input(self, source, condition):
 
518
646
        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
 
 
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
 
531
659
                key = translations[key]
 
532
660
            except KeyError:    # :-)
 
535
 
            if key == u"q" or key == u"Q":
 
 
663
            if key == "q" or key == "Q":
 
538
 
            elif key == u"window resize":
 
 
666
            elif key == "window resize":
 
539
667
                self.size = self.screen.get_cols_rows()
 
541
 
            elif key == u"\f":  # Ctrl-L
 
 
669
            elif key == "ctrl l":
 
543
 
            elif key == u"l" or key == u"D":
 
 
672
            elif key == "l" or key == "D":
 
544
673
                self.toggle_log_display()
 
546
 
            elif key == u"w" or key == u"i":
 
 
675
            elif key == "w" or key == "i":
 
547
676
                self.change_log_display()
 
549
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
 
678
            elif key == "?" or key == "f1" or key == "esc":
 
550
679
                if not self.log_visible:
 
551
680
                    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",
 
 
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",
 
573
703
                if self.topwidget.get_focus() is self.logbox:
 
574
704
                    self.topwidget.set_focus(0)
 
576
706
                    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
 
 
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
 
596
733
            elif self.topwidget.selectable():
 
597
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)
 
601
752
ui = UserInterface()
 
605
 
    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)