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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_builtins import *
 
 
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from __future__ import division, absolute_import, with_statement
 
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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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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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locale.setlocale(locale.LC_ALL, u'')
 
 
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logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
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# Some useful constants
 
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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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domain = 'se.bsnet.fukt'
 
 
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server_interface = domain + '.Mandos'
 
 
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client_interface = domain + '.Mandos.Client'
 
 
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# Always run in monochrome mode
 
 
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urwid.curses_display.curses.has_colors = lambda : False
 
 
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# Urwid doesn't support blinking, but we want it.  Since we have no
 
 
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# use for underline on its own, we make underline also always blink.
 
 
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urwid.curses_display.curses.A_UNDERLINE |= (
 
 
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    urwid.curses_display.curses.A_BLINK)
 
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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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    d, t = iso.split(u"T", 1)
 
 
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    year, month, day = d.split(u"-", 2)
 
 
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    hour, minute, second = t.split(u":", 2)
 
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    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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                             int(second),           # Whole seconds
 
 
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                             int(fraction*1000000)) # Microseconds
 
 
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class MandosClientPropertyCache(object):
 
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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
 
102
 
    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:
 
112
 
            self.properties.update(self.proxy.GetAll(
 
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                dbus_interface=dbus.PROPERTIES_IFACE))
 
116
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
118
 
    def properties_changed(self, interface, properties, invalidated):
 
119
 
        """This is called whenever we get a PropertiesChanged signal
 
120
 
        It updates the changed properties in the "properties" dict.
 
 
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    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!
 
 
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#        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
 
 
83
        It updates the changed property in the "properties" dict.
 
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85
        # Update properties dict with new value
 
123
 
        if interface == client_interface:
 
124
 
            self.properties.update(properties)
 
127
 
        self.property_changed_match.remove()
 
 
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        self.properties[property] = value
 
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class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
131
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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,
 
135
 
                 delete_hook=None, **kwargs):
 
 
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                 delete_hook=None, logger=None, *args, **kwargs):
 
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        # Called on update
 
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        self.update_hook = update_hook
 
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        # Called on delete
 
139
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        self.delete_hook = delete_hook
 
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        # Mandos Server proxy object
 
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        self.server_proxy_object = server_proxy_object
 
143
104
        self._update_timer_callback_tag = None
 
 
105
        self.last_checker_failed = False
 
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107
        # The widget shown normally
 
146
 
        self._text_widget = urwid.Text("")
 
 
108
        self._text_widget = urwid.Text(u"")
 
147
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        # The widget shown when we have focus
 
148
 
        self._focus_text_widget = urwid.Text("")
 
149
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
 
110
        self._focus_text_widget = urwid.Text(u"")
 
 
111
        super(MandosClientWidget, self).__init__(
 
 
112
            update_hook=update_hook, delete_hook=delete_hook,
 
151
115
        self.opened = False
 
153
 
        self.match_objects = (
 
154
 
            self.proxy.connect_to_signal("CheckerCompleted",
 
155
 
                                         self.checker_completed,
 
158
 
            self.proxy.connect_to_signal("CheckerStarted",
 
159
 
                                         self.checker_started,
 
162
 
            self.proxy.connect_to_signal("GotSecret",
 
166
 
            self.proxy.connect_to_signal("NeedApproval",
 
170
 
            self.proxy.connect_to_signal("Rejected",
 
174
 
        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
 
 
116
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
 
117
                                     self.checker_completed,
 
 
120
        self.proxy.connect_to_signal(u"CheckerStarted",
 
 
121
                                     self.checker_started,
 
 
124
        self.proxy.connect_to_signal(u"GotSecret",
 
 
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        self.proxy.connect_to_signal(u"NeedApproval",
 
 
132
        self.proxy.connect_to_signal(u"Rejected",
 
 
136
        last_checked_ok = isoformat_to_datetime(self.properties
 
 
138
        if last_checked_ok is None:
 
 
139
            self.last_checker_failed = True
 
 
141
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
 
147
        if self.last_checker_failed:
 
 
148
            self._update_timer_callback_tag = (gobject.timeout_add
 
189
152
    def checker_completed(self, exitstatus, condition, command):
 
190
153
        if exitstatus == 0:
 
191
 
            log.debug('Checker for client %s (command "%s")'
 
192
 
                      " succeeded", self.properties["Name"], command)
 
 
154
            if self.last_checker_failed:
 
 
155
                self.last_checker_failed = False
 
 
156
                gobject.source_remove(self._update_timer_callback_tag)
 
 
157
                self._update_timer_callback_tag = None
 
 
158
            #self.logger(u'Checker for client %s (command "%s")'
 
 
160
            #            % (self.properties[u"Name"], command))
 
 
164
        if not self.last_checker_failed:
 
 
165
            self.last_checker_failed = True
 
 
166
            self._update_timer_callback_tag = (gobject.timeout_add
 
196
169
        if os.WIFEXITED(condition):
 
197
 
            log.info('Checker for client %s (command "%s") failed'
 
198
 
                     " with exit code %d", self.properties["Name"],
 
199
 
                     command, os.WEXITSTATUS(condition))
 
 
170
            self.logger(u'Checker for client %s (command "%s")'
 
 
171
                        u' failed with exit code %s'
 
 
172
                        % (self.properties[u"Name"], command,
 
 
173
                           os.WEXITSTATUS(condition)))
 
200
174
        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))
 
 
175
            self.logger(u'Checker for client %s (command "%s")'
 
 
176
                        u' was killed by signal %s'
 
 
177
                        % (self.properties[u"Name"], command,
 
 
178
                           os.WTERMSIG(condition)))
 
 
179
        elif os.WCOREDUMP(condition):
 
 
180
            self.logger(u'Checker for client %s (command "%s")'
 
 
182
                        % (self.properties[u"Name"], command))
 
 
184
            self.logger(u'Checker for client %s completed'
 
206
188
    def checker_started(self, command):
 
207
 
        """Server signals that a checker started."""
 
208
 
        log.debug('Client %s started checker "%s"',
 
209
 
                  self.properties["Name"], command)
 
 
189
        #self.logger(u'Client %s started checker "%s"'
 
 
190
        #            % (self.properties[u"Name"], unicode(command)))
 
211
193
    def got_secret(self):
 
212
 
        log.info("Client %s received its secret",
 
213
 
                 self.properties["Name"])
 
 
194
        self.last_checker_failed = False
 
 
195
        self.logger(u'Client %s received its secret'
 
 
196
                    % self.properties[u"Name"])
 
215
198
    def need_approval(self, timeout, default):
 
217
 
            message = "Client %s needs approval within %f seconds"
 
 
200
            message = u'Client %s needs approval within %s seconds'
 
219
 
            message = "Client %s will get its secret in %f seconds"
 
220
 
        log.info(message, self.properties["Name"], timeout/1000)
 
 
202
            message = u'Client %s will get its secret in %s seconds'
 
 
204
                    % (self.properties[u"Name"], timeout/1000))
 
222
206
    def rejected(self, reason):
 
223
 
        log.info("Client %s was rejected; reason: %s",
 
224
 
                 self.properties["Name"], reason)
 
 
207
        self.logger(u'Client %s was rejected; reason: %s'
 
 
208
                    % (self.properties[u"Name"], reason))
 
226
210
    def selectable(self):
 
227
211
        """Make this a "selectable" widget.
 
228
212
        This overrides the method from urwid.FlowWidget."""
 
231
 
    def rows(self, maxcolrow, focus=False):
 
 
215
    def rows(self, (maxcol,), focus=False):
 
232
216
        """How many rows this widget will occupy might depend on
 
233
217
        whether we have focus or not.
 
234
218
        This overrides the method from urwid.FlowWidget"""
 
235
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
 
219
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
237
221
    def current_widget(self, focus=False):
 
238
222
        if focus or self.opened:
 
239
223
            return self._focus_widget
 
240
224
        return self._widget
 
242
226
    def update(self):
 
243
227
        "Called when what is visible on the screen should be updated."
 
244
228
        # How to add standout mode to a style
 
245
 
        with_standout = {"normal": "standout",
 
246
 
                         "bold": "bold-standout",
 
248
 
                         "underline-blink-standout",
 
249
 
                         "bold-underline-blink":
 
250
 
                         "bold-underline-blink-standout",
 
 
229
        with_standout = { u"normal": u"standout",
 
 
230
                          u"bold": u"bold-standout",
 
 
232
                              u"underline-blink-standout",
 
 
233
                          u"bold-underline-blink":
 
 
234
                              u"bold-underline-blink-standout",
 
253
237
        # Rebuild focus and non-focus widgets using current properties
 
255
239
        # 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)
 
 
240
        base = (u'%(name)s: '
 
 
241
                      % {u"name": self.properties[u"Name"]})
 
 
242
        if not self.properties[u"Enabled"]:
 
 
243
            message = u"DISABLED"
 
 
244
        elif self.properties[u"ApprovalPending"]:
 
 
245
            if self.properties[u"ApprovedByDefault"]:
 
 
246
                message = u"Connection established to client. (d)eny?"
 
 
248
                message = u"Seeks approval to send secret. (a)pprove?"
 
 
249
        elif self.last_checker_failed:
 
 
250
            timeout = datetime.timedelta(milliseconds
 
 
253
            last_ok = isoformat_to_datetime(
 
 
254
                max((self.properties[u"LastCheckedOK"]
 
 
255
                     or self.properties[u"Created"]),
 
 
256
                    self.properties[u"LastEnabled"]))
 
 
257
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
 
258
            message = (u'A checker has failed! Time until client'
 
 
260
                           % unicode(timer).rsplit(".", 1)[0])
 
293
 
            self.using_timer(False)
 
294
 
        self._text = "{}{}".format(base, message)
 
 
263
        self._text = "%s%s" % (base, message)
 
296
265
        if not urwid.supports_unicode():
 
297
266
            self._text = self._text.encode("ascii", "replace")
 
298
 
        textlist = [("normal", self._text)]
 
 
267
        textlist = [(u"normal", self._text)]
 
299
268
        self._text_widget.set_text(textlist)
 
300
269
        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
308
277
        # Run update hook, if any
 
309
278
        if self.update_hook is not None:
 
310
279
            self.update_hook()
 
312
281
    def update_timer(self):
 
313
 
        """called by GLib. Will indefinitely loop until
 
314
 
        GLib.source_remove() on tag is called
 
317
284
        return True             # Keep calling this
 
319
 
    def delete(self, **kwargs):
 
320
287
        if self._update_timer_callback_tag is not None:
 
321
 
            GLib.source_remove(self._update_timer_callback_tag)
 
 
288
            gobject.source_remove(self._update_timer_callback_tag)
 
322
289
            self._update_timer_callback_tag = None
 
323
 
        for match in self.match_objects:
 
325
 
        self.match_objects = ()
 
326
290
        if self.delete_hook is not None:
 
327
291
            self.delete_hook(self)
 
328
 
        return super(MandosClientWidget, self).delete(**kwargs)
 
330
 
    def render(self, maxcolrow, focus=False):
 
 
293
    def render(self, (maxcol,), focus=False):
 
331
294
        """Render differently if we have focus.
 
332
295
        This overrides the method from urwid.FlowWidget"""
 
333
 
        return self.current_widget(focus).render(maxcolrow,
 
 
296
        return self.current_widget(focus).render((maxcol,),
 
336
 
    def keypress(self, maxcolrow, key):
 
 
299
    def keypress(self, (maxcol,), key):
 
338
301
        This overrides the method from urwid.FlowWidget"""
 
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)
 
 
303
            self.proxy.Enable(dbus_interface = client_interface)
 
 
305
            self.proxy.Disable(dbus_interface = client_interface)
 
348
307
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
349
 
                               dbus_interface=client_interface,
 
 
308
                               dbus_interface = client_interface)
 
352
310
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
353
 
                               dbus_interface=client_interface,
 
355
 
        elif key == "R" or key == "_" or key == "ctrl k":
 
 
311
                                  dbus_interface = client_interface)
 
 
312
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
356
313
            self.server_proxy_object.RemoveClient(self.proxy
 
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,
 
 
316
            self.proxy.StartChecker(dbus_interface = client_interface)
 
 
318
            self.proxy.StopChecker(dbus_interface = client_interface)
 
 
320
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
371
 
#         elif key == "p" or key == "=":
 
 
322
#         elif key == u"p" or key == "=":
 
372
323
#             self.proxy.pause()
 
373
 
#         elif key == "u" or key == ":":
 
 
324
#         elif key == u"u" or key == ":":
 
374
325
#             self.proxy.unpause()
 
 
326
#         elif key == u"RET":
 
 
329
#            self.proxy.Approve(True)
 
 
331
#            self.proxy.Approve(False)
 
380
 
    def properties_changed(self, interface, properties, invalidated):
 
381
 
        """Call self.update() if any properties changed.
 
 
335
    def property_changed(self, property=None, value=None,
 
 
337
        """Call self.update() if old value is not new value.
 
382
338
        This overrides the method from MandosClientPropertyCache"""
 
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):
 
 
339
        property_name = unicode(property)
 
 
340
        old_value = self.properties.get(property_name)
 
 
341
        super(MandosClientWidget, self).property_changed(
 
 
342
            property=property, value=value, *args, **kwargs)
 
 
343
        if self.properties.get(property_name) != old_value:
 
392
 
def glib_safely(func, retval=True):
 
393
 
    def safe_func(*args, **kwargs):
 
395
 
            return func(*args, **kwargs)
 
402
347
class ConstrainedListBox(urwid.ListBox):
 
403
348
    """Like a normal urwid.ListBox, but will consume all "up" or
 
404
349
    "down" key presses, thus not allowing any containing widgets to
 
405
350
    use them as an excuse to shift focus away from this widget.
 
407
 
    def keypress(self, *args, **kwargs):
 
408
 
        ret = (super(ConstrainedListBox, self)
 
409
 
               .keypress(*args, **kwargs))
 
410
 
        if ret in ("up", "down"):
 
 
352
    def keypress(self, (maxcol, maxrow), key):
 
 
353
        ret = super(ConstrainedListBox, self).keypress((maxcol,
 
 
355
        if ret in (u"up", u"down"):
 
 
360
class UserInterface(object):
 
416
361
    """This is the entire user interface - the whole screen
 
417
362
    with boxes, lists of client widgets, etc.
 
419
364
    def __init__(self, max_log_length=1000):
 
420
365
        DBusGMainLoop(set_as_default=True)
 
422
367
        self.screen = urwid.curses_display.Screen()
 
424
369
        self.screen.register_palette((
 
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"),
 
 
371
                 u"default", u"default", None),
 
 
373
                 u"default", u"default", u"bold"),
 
 
375
                 u"default", u"default", u"underline"),
 
 
377
                 u"default", u"default", u"standout"),
 
 
378
                (u"bold-underline-blink",
 
 
379
                 u"default", u"default", (u"bold", u"underline")),
 
 
381
                 u"default", u"default", (u"bold", u"standout")),
 
 
382
                (u"underline-blink-standout",
 
 
383
                 u"default", u"default", (u"underline", u"standout")),
 
 
384
                (u"bold-underline-blink-standout",
 
 
385
                 u"default", u"default", (u"bold", u"underline",
 
446
389
        if urwid.supports_unicode():
 
447
 
            self.divider = "─"  # \u2500
 
 
390
            self.divider = u"─" # \u2500
 
 
391
            #self.divider = u"━" # \u2501
 
449
 
            self.divider = "_"  # \u005f
 
 
393
            #self.divider = u"-" # \u002d
 
 
394
            self.divider = u"_" # \u005f
 
451
396
        self.screen.start()
 
453
398
        self.size = self.screen.get_cols_rows()
 
455
400
        self.clients = urwid.SimpleListWalker([])
 
456
401
        self.clients_dict = {}
 
458
403
        # We will add Text widgets to this list
 
459
 
        self.log = urwid.SimpleListWalker([])
 
460
405
        self.max_log_length = max_log_length
 
462
407
        # We keep a reference to the log widget so we can remove it
 
463
408
        # from the ListWalker without it getting destroyed
 
464
409
        self.logbox = ConstrainedListBox(self.log)
 
466
411
        # This keeps track of whether self.uilist currently has
 
467
412
        # self.logbox in it or not
 
468
413
        self.log_visible = True
 
469
 
        self.log_wrap = "any"
 
471
 
        self.loghandler = UILogHandler(self)
 
 
414
        self.log_wrap = u"any"
 
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)
 
 
417
        self.log_message_raw((u"bold",
 
 
418
                              u"Mandos Monitor version " + version))
 
 
419
        self.log_message_raw((u"bold",
 
 
422
        self.busname = domain + '.Mandos'
 
 
423
        self.main_loop = gobject.MainLoop()
 
 
424
        self.bus = dbus.SystemBus()
 
 
425
        mandos_dbus_objc = self.bus.get_object(
 
 
426
            self.busname, u"/", follow_name_owner_changes=True)
 
 
427
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
 
431
            mandos_clients = (self.mandos_serv
 
 
432
                              .GetAllClientsWithProperties())
 
 
433
        except dbus.exceptions.DBusException:
 
 
434
            mandos_clients = dbus.Dictionary()
 
 
437
         .connect_to_signal(u"ClientRemoved",
 
 
438
                            self.find_and_remove_client,
 
 
439
                            dbus_interface=server_interface,
 
 
442
         .connect_to_signal(u"ClientAdded",
 
 
444
                            dbus_interface=server_interface,
 
 
447
         .connect_to_signal(u"ClientNotFound",
 
 
448
                            self.client_not_found,
 
 
449
                            dbus_interface=server_interface,
 
 
451
        for path, client in mandos_clients.iteritems():
 
 
452
            client_proxy_object = self.bus.get_object(self.busname,
 
 
454
            self.add_client(MandosClientWidget(server_proxy_object
 
 
457
                                               =client_proxy_object,
 
 
467
    def client_not_found(self, fingerprint, address):
 
 
468
        self.log_message((u"Client with address %s and fingerprint %s"
 
 
469
                          u" could not be found" % (address,
 
485
472
    def rebuild(self):
 
486
473
        """This rebuilds the User Interface.
 
487
474
        Call this when the widget layout needs to change"""
 
489
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
 
476
        #self.uilist.append(urwid.ListBox(self.clients))
 
490
477
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
492
 
                                       # header=urwid.Divider(),
 
 
479
                                       #header=urwid.Divider(),
 
494
 
                                       footer=urwid.Divider(
 
495
 
                                           div_char=self.divider)))
 
 
482
                                       urwid.Divider(div_char=
 
496
484
        if self.log_visible:
 
497
485
            self.uilist.append(self.logbox)
 
498
487
        self.topwidget = urwid.Pile(self.uilist)
 
500
 
    def add_log_line(self, markup):
 
 
489
    def log_message(self, message):
 
 
490
        timestamp = datetime.datetime.now().isoformat()
 
 
491
        self.log_message_raw(timestamp + u": " + message)
 
 
493
    def log_message_raw(self, markup):
 
 
494
        """Add a log message to the log buffer."""
 
501
495
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
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,
 
 
496
        if (self.max_log_length
 
 
497
            and len(self.log) > self.max_log_length):
 
 
498
            del self.log[0:len(self.log)-self.max_log_length-1]
 
 
499
        self.logbox.set_focus(len(self.logbox.body.contents),
 
 
500
                              coming_from=u"above")
 
509
503
    def toggle_log_display(self):
 
510
504
        """Toggle visibility of the log buffer."""
 
511
505
        self.log_visible = not self.log_visible
 
513
 
        log.debug("Log visibility changed to: %s", self.log_visible)
 
 
507
        self.log_message(u"Log visibility changed to: "
 
 
508
                         + unicode(self.log_visible))
 
515
510
    def change_log_display(self):
 
516
511
        """Change type of log display.
 
517
512
        Currently, this toggles wrapping of text lines."""
 
518
 
        if self.log_wrap == "clip":
 
519
 
            self.log_wrap = "any"
 
 
513
        if self.log_wrap == u"clip":
 
 
514
            self.log_wrap = u"any"
 
521
 
            self.log_wrap = "clip"
 
 
516
            self.log_wrap = u"clip"
 
522
517
        for textwidget in self.log:
 
523
518
            textwidget.set_wrap_mode(self.log_wrap)
 
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
 
 
519
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
 
521
    def find_and_remove_client(self, path, name):
 
 
522
        """Find an client from its object path and remove it.
 
 
524
        This is connected to the ClientRemoved signal from the
 
530
525
        Mandos server object."""
 
531
 
        if client_interface not in interfaces:
 
532
 
            # Not a Mandos client object; ignore
 
535
527
            client = self.clients_dict[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
 
 
531
        self.remove_client(client, path)
 
 
533
    def add_new_client(self, path):
 
551
534
        client_proxy_object = self.bus.get_object(self.busname, path)
 
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])),
 
 
535
        self.add_client(MandosClientWidget(server_proxy_object
 
 
538
                                           =client_proxy_object,
 
560
547
    def add_client(self, client, path=None):
 
561
548
        self.clients.append(client)
 
563
550
            path = client.proxy.object_path
 
564
551
        self.clients_dict[path] = client
 
565
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
 
552
        self.clients.sort(None, lambda c: c.properties[u"Name"])
 
568
555
    def remove_client(self, client, path=None):
 
569
556
        self.clients.remove(client)
 
571
558
            path = client.proxy.object_path
 
572
559
        del self.clients_dict[path]
 
 
560
        if not self.clients_dict:
 
 
561
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
 
562
            # is completely emptied, we need to recreate it.
 
 
563
            self.clients = urwid.SimpleListWalker([])
 
575
567
    def refresh(self):
 
576
568
        """Redraw the screen"""
 
577
569
        canvas = self.topwidget.render(self.size, focus=True)
 
578
570
        self.screen.draw_screen(self.size, canvas)
 
581
573
        """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),
 
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)))
 
 
575
        self._input_callback_tag = (gobject.io_add_watch
 
633
579
        self.main_loop.run()
 
634
580
        # Main loop has finished, we should close everything now
 
635
 
        GLib.source_remove(self._input_callback_tag)
 
636
 
        with warnings.catch_warnings():
 
637
 
            warnings.simplefilter("ignore", BytesWarning)
 
 
581
        gobject.source_remove(self._input_callback_tag)
 
641
585
        self.main_loop.quit()
 
642
 
        log.removeHandler(self.loghandler)
 
643
 
        log.propagate = self.orig_log_propagate
 
645
587
    def process_input(self, source, condition):
 
646
588
        keys = self.screen.get_input()
 
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
 
 
589
        translations = { u"ctrl n": u"down",      # Emacs
 
 
590
                         u"ctrl p": u"up",        # Emacs
 
 
591
                         u"ctrl v": u"page down", # Emacs
 
 
592
                         u"meta v": u"page up",   # Emacs
 
 
593
                         u" ": u"page down",      # less
 
 
594
                         u"f": u"page down",      # less
 
 
595
                         u"b": u"page up",        # less
 
659
601
                key = translations[key]
 
660
602
            except KeyError:    # :-)
 
663
 
            if key == "q" or key == "Q":
 
 
605
            if key == u"q" or key == u"Q":
 
666
 
            elif key == "window resize":
 
 
608
            elif key == u"window resize":
 
667
609
                self.size = self.screen.get_cols_rows()
 
669
 
            elif key == "ctrl l":
 
 
611
            elif key == u"\f":  # Ctrl-L
 
672
 
            elif key == "l" or key == "D":
 
 
613
            elif key == u"l" or key == u"D":
 
673
614
                self.toggle_log_display()
 
675
 
            elif key == "w" or key == "i":
 
 
616
            elif key == u"w" or key == u"i":
 
676
617
                self.change_log_display()
 
678
 
            elif key == "?" or key == "f1" or key == "esc":
 
 
619
            elif key == u"?" or key == u"f1" or key == u"esc":
 
679
620
                if not self.log_visible:
 
680
621
                    self.log_visible = True
 
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",
 
 
623
                self.log_message_raw((u"bold",
 
 
627
                                            u"l: Log window toggle",
 
 
628
                                            u"TAB: Switch window",
 
 
630
                self.log_message_raw((u"bold",
 
 
636
                                             u"s: Start new checker",
 
703
643
                if self.topwidget.get_focus() is self.logbox:
 
704
644
                    self.topwidget.set_focus(0)
 
706
646
                    self.topwidget.set_focus(self.logbox)
 
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
 
 
648
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
 
650
            #    pass            # xxx end-of-buffer
 
 
651
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
 
653
            #    pass            # xxx beginning-of-buffer
 
 
654
            #elif key == u"ctrl e" or key == u"$":
 
 
655
            #    pass            # xxx move-end-of-line
 
 
656
            #elif key == u"ctrl a" or key == u"^":
 
 
657
            #    pass            # xxx move-beginning-of-line
 
 
658
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
 
660
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
 
663
            #    pass            # scroll up log
 
 
665
            #    pass            # scroll down log
 
733
666
            elif self.topwidget.selectable():
 
734
667
                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)
 
752
671
ui = UserInterface()
 
755
674
except KeyboardInterrupt:
 
756
 
    with warnings.catch_warnings():
 
757
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
760
 
    with warnings.catch_warnings():
 
761
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
677
    ui.log_message(unicode(e))