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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
 
104
 
        self.properties = dict() if properties is None else properties
 
105
 
        self.property_changed_match = (
 
106
 
            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))
 
 
77
        #XXX This break good super behaviour!
 
 
78
#        super(MandosClientPropertyCache, self).__init__(
 
 
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    def property_changed(self, property=None, value=None):
 
 
82
        """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):
 
 
94
                 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
 
 
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        self.last_checker_failed = False
 
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        # 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",
 
 
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                                     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()
 
 
145
                                         self.properties["interval"]))
 
 
146
        if self.last_checker_failed:
 
 
147
            self._update_timer_callback_tag = (gobject.timeout_add
 
189
151
    def checker_completed(self, exitstatus, condition, command):
 
190
152
        if exitstatus == 0:
 
191
 
            log.debug('Checker for client %s (command "%s")'
 
192
 
                      " succeeded", self.properties["Name"], command)
 
 
153
            if self.last_checker_failed:
 
 
154
                self.last_checker_failed = False
 
 
155
                gobject.source_remove(self._update_timer_callback_tag)
 
 
156
                self._update_timer_callback_tag = None
 
 
157
            self.logger(u'Checker for client %s (command "%s")'
 
 
159
                        % (self.properties[u"name"], command))
 
 
163
        if not self.last_checker_failed:
 
 
164
            self.last_checker_failed = True
 
 
165
            self._update_timer_callback_tag = (gobject.timeout_add
 
196
168
        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))
 
 
169
            self.logger(u'Checker for client %s (command "%s")'
 
 
170
                        u' failed with exit code %s'
 
 
171
                        % (self.properties[u"name"], command,
 
 
172
                           os.WEXITSTATUS(condition)))
 
200
173
        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))
 
 
174
            self.logger(u'Checker for client %s (command "%s")'
 
 
175
                        u' was killed by signal %s'
 
 
176
                        % (self.properties[u"name"], command,
 
 
177
                           os.WTERMSIG(condition)))
 
 
178
        elif os.WCOREDUMP(condition):
 
 
179
            self.logger(u'Checker for client %s (command "%s")'
 
 
181
                        % (self.properties[u"name"], command))
 
 
183
            self.logger(u'Checker for client %s completed mysteriously')
 
206
186
    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)
 
 
187
        #self.logger(u'Client %s started checker "%s"'
 
 
188
        #            % (self.properties[u"name"], unicode(command)))
 
211
191
    def got_secret(self):
 
212
 
        log.info("Client %s received its secret",
 
213
 
                 self.properties["Name"])
 
 
192
        self.logger(u'Client %s received its secret'
 
 
193
                    % self.properties[u"name"])
 
215
195
    def need_approval(self, timeout, default):
 
217
 
            message = "Client %s needs approval within %f seconds"
 
 
197
            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)
 
 
199
            message = u'Client %s will get its secret in %s seconds'
 
 
201
                    % (self.properties[u"name"], timeout/1000))
 
222
203
    def rejected(self, reason):
 
223
 
        log.info("Client %s was rejected; reason: %s",
 
224
 
                 self.properties["Name"], reason)
 
 
204
        self.logger(u'Client %s was rejected; reason: %s'
 
 
205
                    % (self.properties[u"name"], reason))
 
226
207
    def selectable(self):
 
227
208
        """Make this a "selectable" widget.
 
228
209
        This overrides the method from urwid.FlowWidget."""
 
231
 
    def rows(self, maxcolrow, focus=False):
 
 
212
    def rows(self, (maxcol,), focus=False):
 
232
213
        """How many rows this widget will occupy might depend on
 
233
214
        whether we have focus or not.
 
234
215
        This overrides the method from urwid.FlowWidget"""
 
235
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
 
216
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
237
218
    def current_widget(self, focus=False):
 
238
219
        if focus or self.opened:
 
239
220
            return self._focus_widget
 
240
221
        return self._widget
 
242
223
    def update(self):
 
243
224
        "Called when what is visible on the screen should be updated."
 
244
225
        # 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",
 
 
226
        with_standout = { u"normal": u"standout",
 
 
227
                          u"bold": u"bold-standout",
 
 
229
                              u"underline-blink-standout",
 
 
230
                          u"bold-underline-blink":
 
 
231
                              u"bold-underline-blink-standout",
 
253
234
        # Rebuild focus and non-focus widgets using current properties
 
255
236
        # 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)
 
 
237
        base = (u'%(name)s: '
 
 
238
                      % {u"name": self.properties[u"name"]})
 
 
239
        if not self.properties[u"enabled"]:
 
 
240
            message = u"DISABLED"
 
 
241
        elif self.last_checker_failed:
 
 
242
            timeout = datetime.timedelta(milliseconds
 
 
243
                                         = self.properties[u"timeout"])
 
 
244
            last_ok = isoformat_to_datetime(
 
 
245
                max((self.properties["last_checked_ok"]
 
 
246
                     or self.properties["created"]),
 
 
247
                    self.properties[u"last_enabled"]))
 
 
248
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
 
250
            message = (u'A checker has failed! Time until client gets diabled: %s'
 
 
252
        elif self.properties[u"approved_pending"]:
 
 
253
            if self.properties[u"approved_by_default"]:
 
 
254
                message = u"Connection established to client. (d)eny?"
 
 
256
                message = u"Seeks approval to send secret. (a)pprove?"
 
293
 
            self.using_timer(False)
 
294
 
        self._text = "{}{}".format(base, message)
 
 
259
        self._text = "%s%s" % (base, message)
 
296
261
        if not urwid.supports_unicode():
 
297
262
            self._text = self._text.encode("ascii", "replace")
 
298
 
        textlist = [("normal", self._text)]
 
 
263
        textlist = [(u"normal", self._text)]
 
299
264
        self._text_widget.set_text(textlist)
 
300
265
        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
308
273
        # Run update hook, if any
 
309
274
        if self.update_hook is not None:
 
310
275
            self.update_hook()
 
312
277
    def update_timer(self):
 
313
 
        """called by GLib. Will indefinitely loop until
 
314
 
        GLib.source_remove() on tag is called
 
317
280
        return True             # Keep calling this
 
319
 
    def delete(self, **kwargs):
 
320
283
        if self._update_timer_callback_tag is not None:
 
321
 
            GLib.source_remove(self._update_timer_callback_tag)
 
 
284
            gobject.source_remove(self._update_timer_callback_tag)
 
322
285
            self._update_timer_callback_tag = None
 
323
 
        for match in self.match_objects:
 
325
 
        self.match_objects = ()
 
326
286
        if self.delete_hook is not None:
 
327
287
            self.delete_hook(self)
 
328
 
        return super(MandosClientWidget, self).delete(**kwargs)
 
330
 
    def render(self, maxcolrow, focus=False):
 
 
289
    def render(self, (maxcol,), focus=False):
 
331
290
        """Render differently if we have focus.
 
332
291
        This overrides the method from urwid.FlowWidget"""
 
333
 
        return self.current_widget(focus).render(maxcolrow,
 
 
292
        return self.current_widget(focus).render((maxcol,),
 
336
 
    def keypress(self, maxcolrow, key):
 
 
295
    def keypress(self, (maxcol,), key):
 
338
297
        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)
 
 
299
            self.proxy.Enable(dbus_interface = client_interface)
 
 
301
            self.proxy.Disable(dbus_interface = client_interface)
 
348
303
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
349
 
                               dbus_interface=client_interface,
 
 
304
                               dbus_interface = client_interface)
 
352
306
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
353
 
                               dbus_interface=client_interface,
 
355
 
        elif key == "R" or key == "_" or key == "ctrl k":
 
 
307
                                  dbus_interface = client_interface)
 
 
308
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
356
309
            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,
 
 
312
            self.proxy.StartChecker(dbus_interface = client_interface)
 
 
314
            self.proxy.StopChecker(dbus_interface = client_interface)
 
 
316
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
371
 
#         elif key == "p" or key == "=":
 
 
318
#         elif key == u"p" or key == "=":
 
372
319
#             self.proxy.pause()
 
373
 
#         elif key == "u" or key == ":":
 
 
320
#         elif key == u"u" or key == ":":
 
374
321
#             self.proxy.unpause()
 
 
322
#         elif key == u"RET":
 
 
325
#            self.proxy.Approve(True)
 
 
327
#            self.proxy.Approve(False)
 
380
 
    def properties_changed(self, interface, properties, invalidated):
 
381
 
        """Call self.update() if any properties changed.
 
 
331
    def property_changed(self, property=None, value=None,
 
 
333
        """Call self.update() if old value is not new value.
 
382
334
        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):
 
 
335
        property_name = unicode(property)
 
 
336
        old_value = self.properties.get(property_name)
 
 
337
        super(MandosClientWidget, self).property_changed(
 
 
338
            property=property, value=value, *args, **kwargs)
 
 
339
        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
343
class ConstrainedListBox(urwid.ListBox):
 
403
344
    """Like a normal urwid.ListBox, but will consume all "up" or
 
404
345
    "down" key presses, thus not allowing any containing widgets to
 
405
346
    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"):
 
 
348
    def keypress(self, (maxcol, maxrow), key):
 
 
349
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
 
 
350
        if ret in (u"up", u"down"):
 
 
355
class UserInterface(object):
 
416
356
    """This is the entire user interface - the whole screen
 
417
357
    with boxes, lists of client widgets, etc.
 
419
359
    def __init__(self, max_log_length=1000):
 
420
360
        DBusGMainLoop(set_as_default=True)
 
422
362
        self.screen = urwid.curses_display.Screen()
 
424
364
        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"),
 
 
366
                 u"default", u"default", None),
 
 
368
                 u"default", u"default", u"bold"),
 
 
370
                 u"default", u"default", u"underline"),
 
 
372
                 u"default", u"default", u"standout"),
 
 
373
                (u"bold-underline-blink",
 
 
374
                 u"default", u"default", (u"bold", u"underline")),
 
 
376
                 u"default", u"default", (u"bold", u"standout")),
 
 
377
                (u"underline-blink-standout",
 
 
378
                 u"default", u"default", (u"underline", u"standout")),
 
 
379
                (u"bold-underline-blink-standout",
 
 
380
                 u"default", u"default", (u"bold", u"underline",
 
446
384
        if urwid.supports_unicode():
 
447
 
            self.divider = "─"  # \u2500
 
 
385
            self.divider = u"─" # \u2500
 
 
386
            #self.divider = u"━" # \u2501
 
449
 
            self.divider = "_"  # \u005f
 
 
388
            #self.divider = u"-" # \u002d
 
 
389
            self.divider = u"_" # \u005f
 
451
391
        self.screen.start()
 
453
393
        self.size = self.screen.get_cols_rows()
 
455
395
        self.clients = urwid.SimpleListWalker([])
 
456
396
        self.clients_dict = {}
 
458
398
        # We will add Text widgets to this list
 
459
 
        self.log = urwid.SimpleListWalker([])
 
460
400
        self.max_log_length = max_log_length
 
462
402
        # We keep a reference to the log widget so we can remove it
 
463
403
        # from the ListWalker without it getting destroyed
 
464
404
        self.logbox = ConstrainedListBox(self.log)
 
466
406
        # This keeps track of whether self.uilist currently has
 
467
407
        # self.logbox in it or not
 
468
408
        self.log_visible = True
 
469
 
        self.log_wrap = "any"
 
471
 
        self.loghandler = UILogHandler(self)
 
 
409
        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)
 
 
412
        self.log_message_raw((u"bold",
 
 
413
                              u"Mandos Monitor version " + version))
 
 
414
        self.log_message_raw((u"bold",
 
 
417
        self.busname = domain + '.Mandos'
 
 
418
        self.main_loop = gobject.MainLoop()
 
 
419
        self.bus = dbus.SystemBus()
 
 
420
        mandos_dbus_objc = self.bus.get_object(
 
 
421
            self.busname, u"/", follow_name_owner_changes=True)
 
 
422
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
 
426
            mandos_clients = (self.mandos_serv
 
 
427
                              .GetAllClientsWithProperties())
 
 
428
        except dbus.exceptions.DBusException:
 
 
429
            mandos_clients = dbus.Dictionary()
 
 
432
         .connect_to_signal(u"ClientRemoved",
 
 
433
                            self.find_and_remove_client,
 
 
434
                            dbus_interface=server_interface,
 
 
437
         .connect_to_signal(u"ClientAdded",
 
 
439
                            dbus_interface=server_interface,
 
 
442
         .connect_to_signal(u"ClientNotFound",
 
 
443
                            self.client_not_found,
 
 
444
                            dbus_interface=server_interface,
 
 
446
        for path, client in mandos_clients.iteritems():
 
 
447
            client_proxy_object = self.bus.get_object(self.busname,
 
 
449
            self.add_client(MandosClientWidget(server_proxy_object
 
 
452
                                               =client_proxy_object,
 
 
462
    def client_not_found(self, fingerprint, address):
 
 
463
        self.log_message((u"Client with address %s and fingerprint %s"
 
 
464
                          u" could not be found" % (address,
 
485
467
    def rebuild(self):
 
486
468
        """This rebuilds the User Interface.
 
487
469
        Call this when the widget layout needs to change"""
 
489
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
490
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
492
 
                                       # header=urwid.Divider(),
 
 
471
        #self.uilist.append(urwid.ListBox(self.clients))
 
 
472
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
 
473
                                       #header=urwid.Divider(),
 
494
 
                                       footer=urwid.Divider(
 
495
 
                                           div_char=self.divider)))
 
 
475
                                       footer=urwid.Divider(div_char=self.divider)))
 
496
476
        if self.log_visible:
 
497
477
            self.uilist.append(self.logbox)
 
498
479
        self.topwidget = urwid.Pile(self.uilist)
 
500
 
    def add_log_line(self, markup):
 
 
481
    def log_message(self, message):
 
 
482
        timestamp = datetime.datetime.now().isoformat()
 
 
483
        self.log_message_raw(timestamp + u": " + message)
 
 
485
    def log_message_raw(self, markup):
 
 
486
        """Add a log message to the log buffer."""
 
501
487
        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,
 
 
488
        if (self.max_log_length
 
 
489
            and len(self.log) > self.max_log_length):
 
 
490
            del self.log[0:len(self.log)-self.max_log_length-1]
 
 
491
        self.logbox.set_focus(len(self.logbox.body.contents),
 
 
492
                              coming_from=u"above")
 
509
495
    def toggle_log_display(self):
 
510
496
        """Toggle visibility of the log buffer."""
 
511
497
        self.log_visible = not self.log_visible
 
513
 
        log.debug("Log visibility changed to: %s", self.log_visible)
 
 
499
        self.log_message(u"Log visibility changed to: "
 
 
500
                         + unicode(self.log_visible))
 
515
502
    def change_log_display(self):
 
516
503
        """Change type of log display.
 
517
504
        Currently, this toggles wrapping of text lines."""
 
518
 
        if self.log_wrap == "clip":
 
519
 
            self.log_wrap = "any"
 
 
505
        if self.log_wrap == u"clip":
 
 
506
            self.log_wrap = u"any"
 
521
 
            self.log_wrap = "clip"
 
 
508
            self.log_wrap = u"clip"
 
522
509
        for textwidget in self.log:
 
523
510
            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
 
 
511
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
 
513
    def find_and_remove_client(self, path, name):
 
 
514
        """Find an client from its object path and remove it.
 
 
516
        This is connected to the ClientRemoved signal from the
 
530
517
        Mandos server object."""
 
531
 
        if client_interface not in interfaces:
 
532
 
            # Not a Mandos client object; ignore
 
535
519
            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
 
 
523
        self.remove_client(client, path)
 
 
525
    def add_new_client(self, path):
 
551
526
        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])),
 
 
527
        self.add_client(MandosClientWidget(server_proxy_object
 
 
530
                                           =client_proxy_object,
 
560
539
    def add_client(self, client, path=None):
 
561
540
        self.clients.append(client)
 
563
542
            path = client.proxy.object_path
 
564
543
        self.clients_dict[path] = client
 
565
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
 
544
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
568
547
    def remove_client(self, client, path=None):
 
569
548
        self.clients.remove(client)
 
571
550
            path = client.proxy.object_path
 
572
551
        del self.clients_dict[path]
 
 
552
        if not self.clients_dict:
 
 
553
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
 
554
            # is completely emptied, we need to recreate it.
 
 
555
            self.clients = urwid.SimpleListWalker([])
 
575
559
    def refresh(self):
 
576
560
        """Redraw the screen"""
 
577
561
        canvas = self.topwidget.render(self.size, focus=True)
 
578
562
        self.screen.draw_screen(self.size, canvas)
 
581
565
        """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)))
 
 
567
        self._input_callback_tag = (gobject.io_add_watch
 
633
571
        self.main_loop.run()
 
634
572
        # 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)
 
 
573
        gobject.source_remove(self._input_callback_tag)
 
641
577
        self.main_loop.quit()
 
642
 
        log.removeHandler(self.loghandler)
 
643
 
        log.propagate = self.orig_log_propagate
 
645
579
    def process_input(self, source, condition):
 
646
580
        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
 
 
581
        translations = { u"ctrl n": u"down",      # Emacs
 
 
582
                         u"ctrl p": u"up",        # Emacs
 
 
583
                         u"ctrl v": u"page down", # Emacs
 
 
584
                         u"meta v": u"page up",   # Emacs
 
 
585
                         u" ": u"page down",      # less
 
 
586
                         u"f": u"page down",      # less
 
 
587
                         u"b": u"page up",        # less
 
659
593
                key = translations[key]
 
660
594
            except KeyError:    # :-)
 
663
 
            if key == "q" or key == "Q":
 
 
597
            if key == u"q" or key == u"Q":
 
666
 
            elif key == "window resize":
 
 
600
            elif key == u"window resize":
 
667
601
                self.size = self.screen.get_cols_rows()
 
669
 
            elif key == "ctrl l":
 
 
603
            elif key == u"\f":  # Ctrl-L
 
672
 
            elif key == "l" or key == "D":
 
 
605
            elif key == u"l" or key == u"D":
 
673
606
                self.toggle_log_display()
 
675
 
            elif key == "w" or key == "i":
 
 
608
            elif key == u"w" or key == u"i":
 
676
609
                self.change_log_display()
 
678
 
            elif key == "?" or key == "f1" or key == "esc":
 
 
611
            elif key == u"?" or key == u"f1" or key == u"esc":
 
679
612
                if not self.log_visible:
 
680
613
                    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",
 
 
615
                self.log_message_raw((u"bold",
 
 
619
                                            u"l: Log window toggle",
 
 
620
                                            u"TAB: Switch window",
 
 
622
                self.log_message_raw((u"bold",
 
 
628
                                             u"s: Start new checker",
 
703
635
                if self.topwidget.get_focus() is self.logbox:
 
704
636
                    self.topwidget.set_focus(0)
 
706
638
                    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
 
 
640
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
 
642
            #    pass            # xxx end-of-buffer
 
 
643
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
 
645
            #    pass            # xxx beginning-of-buffer
 
 
646
            #elif key == u"ctrl e" or key == u"$":
 
 
647
            #    pass            # xxx move-end-of-line
 
 
648
            #elif key == u"ctrl a" or key == u"^":
 
 
649
            #    pass            # xxx move-beginning-of-line
 
 
650
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
 
652
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
 
655
            #    pass            # scroll up log
 
 
657
            #    pass            # scroll down log
 
733
658
            elif self.topwidget.selectable():
 
734
659
                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
663
ui = UserInterface()
 
755
 
except KeyboardInterrupt:
 
756
 
    with warnings.catch_warnings():
 
757
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
760
 
    with warnings.catch_warnings():
 
761
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
667
    ui.log_message(unicode(e))