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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 © 2009,2010 Teddy Hogeborn
 
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# Copyright © 2009,2010 Björn Påhlsson
 
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# This program is free software: you can redistribute it and/or modify
 
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# it 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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#     This program is distributed in the hope that it will be useful,
 
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#     but 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 
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# Contact the authors at <mandos@fukt.bsnet.se>.
 
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from __future__ import division, absolute_import, with_statement
 
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import urwid.curses_display
 
 
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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(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(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
 
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    def __init__(self, proxy_object=None, *args, **kwargs):
 
 
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    def __init__(self, proxy_object=None, properties=None, *args,
 
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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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        if properties is None:
 
 
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            self.properties = dict()
 
 
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            self.properties = properties
 
 
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        self.proxy.connect_to_signal("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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        if properties is None:
 
 
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            self.properties.update(self.proxy.GetAll(client_interface,
 
 
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                                                     dbus.PROPERTIES_IFACE))
 
 
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        super(MandosClientPropertyCache, self).__init__(
 
 
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            proxy_object=proxy_object,
 
 
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            properties=properties, *args, **kwargs)
 
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    def property_changed(self, property=None, value=None):
 
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        """This is called whenever we get a PropertyChanged signal
 
 
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    def __init__(self, server_proxy_object=None, update_hook=None,
 
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                 delete_hook=None, logger=None, *args, **kwargs):
 
 
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                 delete_hook=None, *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
 
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        self.delete_hook = delete_hook
 
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        # Mandos Server proxy object
 
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        self.server_proxy_object = server_proxy_object
 
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        self._update_timer_callback_tag = None
 
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        self._update_timer_callback_lock = 0
 
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        self.last_checker_failed = False
 
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        # The widget shown normally
 
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        self._text_widget = urwid.Text(u"")
 
 
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        self._text_widget = urwid.Text("")
 
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        # The widget shown when we have focus
 
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        self._focus_text_widget = urwid.Text(u"")
 
 
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        self._focus_text_widget = urwid.Text("")
 
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        super(MandosClientWidget, self).__init__(
 
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            update_hook=update_hook, delete_hook=delete_hook,
 
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        self.opened = False
 
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        last_checked_ok = isoformat_to_datetime(self.properties
 
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        if last_checked_ok is None:
 
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            self.last_checker_failed = True
 
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            self.last_checker_failed = ((datetime.datetime.utcnow()
 
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        if self.last_checker_failed:
 
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            self.using_timer(True)
 
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        if self.need_approval:
 
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            self.using_timer(True)
 
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        self.proxy.connect_to_signal(u"CheckerCompleted",
 
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                                     self.checker_completed,
 
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        self.proxy.connect_to_signal(u"CheckerStarted",
 
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                                     self.checker_started,
 
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        self.proxy.connect_to_signal(u"GotSecret",
 
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        self.proxy.connect_to_signal(u"NeedApproval",
 
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        self.proxy.connect_to_signal(u"Rejected",
 
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    def property_changed(self, property=None, value=None):
 
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        super(self, MandosClientWidget).property_changed(property,
 
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        if property == u"ApprovalPending":
 
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            using_timer(bool(value))
 
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    def using_timer(self, flag):
 
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        """Call this method with True or False when timer should be
 
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        activated or deactivated.
 
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        old = self._update_timer_callback_lock
 
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            self._update_timer_callback_lock += 1
 
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            self._update_timer_callback_lock -= 1
 
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        if old == 0 and self._update_timer_callback_lock:
 
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            self._update_timer_callback_tag = (gobject.timeout_add
 
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        elif old and self._update_timer_callback_lock == 0:
 
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            gobject.source_remove(self._update_timer_callback_tag)
 
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            self._update_timer_callback_tag = None
 
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    def checker_completed(self, exitstatus, condition, command):
 
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            if self.last_checker_failed:
 
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                self.last_checker_failed = False
 
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                self.using_timer(False)
 
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            #self.logger(u'Checker for client %s (command "%s")'
 
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            #            % (self.properties[u"Name"], command))
 
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        if not self.last_checker_failed:
 
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            self.last_checker_failed = True
 
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            self.using_timer(True)
 
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        if os.WIFEXITED(condition):
 
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            self.logger(u'Checker for client %s (command "%s")'
 
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                        u' failed with exit code %s'
 
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                        % (self.properties[u"Name"], command,
 
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                           os.WEXITSTATUS(condition)))
 
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        elif os.WIFSIGNALED(condition):
 
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            self.logger(u'Checker for client %s (command "%s")'
 
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                        u' was killed by signal %s'
 
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                        % (self.properties[u"Name"], command,
 
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                           os.WTERMSIG(condition)))
 
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        elif os.WCOREDUMP(condition):
 
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            self.logger(u'Checker for client %s (command "%s")'
 
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                        % (self.properties[u"Name"], command))
 
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            self.logger(u'Checker for client %s completed'
 
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    def checker_started(self, command):
 
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        #self.logger(u'Client %s started checker "%s"'
 
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        #            % (self.properties[u"Name"], unicode(command)))
 
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    def got_secret(self):
 
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        self.last_checker_failed = False
 
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        self.logger(u'Client %s received its secret'
 
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                    % self.properties[u"Name"])
 
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    def need_approval(self, timeout, default):
 
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            message = u'Client %s needs approval within %s seconds'
 
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            message = u'Client %s will get its secret in %s seconds'
 
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                    % (self.properties[u"Name"], timeout/1000))
 
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        self.using_timer(True)
 
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    def rejected(self, reason):
 
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        self.logger(u'Client %s was rejected; reason: %s'
 
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                    % (self.properties[u"Name"], reason))
 
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    def selectable(self):
 
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        """Make this a "selectable" widget.
 
 
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                          u"bold-underline-blink":
 
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                              u"bold-underline-blink-standout",
 
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        # Rebuild focus and non-focus widgets using current properties
 
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        # Base part of a client. Name!
 
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        base = (u'%(name)s: '
 
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                      % {u"name": self.properties[u"Name"]})
 
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        if not self.properties[u"Enabled"]:
 
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            message = u"DISABLED"
 
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        elif self.properties[u"ApprovalPending"]:
 
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            timeout = datetime.timedelta(milliseconds
 
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            last_approval_request = isoformat_to_datetime(
 
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                self.properties[u"LastApprovalRequest"])
 
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            if last_approval_request is not None:
 
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                timer = timeout - (datetime.datetime.utcnow()
 
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                                   - last_approval_request)
 
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                timer = datetime.timedelta()
 
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            if self.properties[u"ApprovedByDefault"]:
 
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                message = u"Approval in %s. (d)eny?"
 
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                message = u"Denial in %s. (a)pprove?"
 
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            message = message % unicode(timer).rsplit(".", 1)[0]
 
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        elif self.last_checker_failed:
 
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            timeout = datetime.timedelta(milliseconds
 
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            last_ok = isoformat_to_datetime(
 
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                max((self.properties[u"LastCheckedOK"]
 
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                     or self.properties[u"Created"]),
 
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                    self.properties[u"LastEnabled"]))
 
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            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
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            message = (u'A checker has failed! Time until client'
 
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                       u' gets disabled: %s'
 
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                           % unicode(timer).rsplit(".", 1)[0])
 
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        self._text = "%s%s" % (base, message)
 
 
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        self._text = (u'name="%(name)s", enabled=%(enabled)s'
 
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        if not urwid.supports_unicode():
 
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            self._text = self._text.encode("ascii", "replace")
 
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        textlist = [(u"normal", self._text)]
 
 
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        textlist = [(u"normal", u"BLARGH: "), (u"bold", self._text)]
 
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        self._text_widget.set_text(textlist)
 
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        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
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    def keypress(self, (maxcol,), key):
 
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        This overrides the method from urwid.FlowWidget"""
 
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            self.proxy.Enable(dbus_interface = client_interface)
 
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            self.proxy.Disable(dbus_interface = client_interface)
 
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            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
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                               dbus_interface = client_interface)
 
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            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
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                                  dbus_interface = client_interface)
 
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        elif key == u"R" or key == u"_" or key == u"ctrl k":
 
 
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        if key == u"e" or key == u"+":
 
 
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        elif key == u"d" or key == u"-":
 
 
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        elif key == u"r" or key == u"_":
 
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            self.server_proxy_object.RemoveClient(self.proxy
 
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        elif key == u"s":
 
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            self.proxy.StartChecker(dbus_interface = client_interface)
 
 
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            self.proxy.StartChecker()
 
 
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            self.proxy.StopChecker()
 
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        elif key == u"S":
 
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            self.proxy.StopChecker(dbus_interface = client_interface)
 
378
 
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
 
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            self.proxy.CheckedOK()
 
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#         elif key == u"p" or key == "=":
 
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#             self.proxy.pause()
 
 
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            mandos_clients = dbus.Dictionary()
 
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        (self.mandos_serv
 
491
 
         .connect_to_signal(u"ClientRemoved",
 
 
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         .connect_to_signal("ClientRemoved",
 
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                            self.find_and_remove_client,
 
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                            dbus_interface=server_interface,
 
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                            byte_arrays=True))
 
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        (self.mandos_serv
 
496
 
         .connect_to_signal(u"ClientAdded",
 
 
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         .connect_to_signal("ClientAdded",
 
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                            self.add_new_client,
 
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                            dbus_interface=server_interface,
 
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                            byte_arrays=True))
 
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         .connect_to_signal(u"ClientNotFound",
 
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                            self.client_not_found,
 
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                            dbus_interface=server_interface,
 
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        for path, client in mandos_clients.iteritems():
 
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            client_proxy_object = self.bus.get_object(self.busname,
 
 
 
293
                                               =self.remove_client),
 
521
 
    def client_not_found(self, fingerprint, address):
 
522
 
        self.log_message((u"Client with address %s and fingerprint %s"
 
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                          u" could not be found" % (address,
 
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    def rebuild(self):
 
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        """This rebuilds the User Interface.
 
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        Call this when the widget layout needs to change"""
 
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        #self.uilist.append(urwid.ListBox(self.clients))
 
531
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
 
301
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
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                                       #header=urwid.Divider(),
 
536
 
                                       urwid.Divider(div_char=
 
 
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                                       footer=urwid.Divider(div_char=self.divider)))
 
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        if self.log_visible:
 
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            self.uilist.append(self.logbox)
 
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        self.topwidget = urwid.Pile(self.uilist)
 
543
 
    def log_message(self, message):
 
544
 
        timestamp = datetime.datetime.now().isoformat()
 
545
 
        self.log_message_raw(timestamp + u": " + message)
 
547
 
    def log_message_raw(self, markup):
 
 
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    def log_message(self, markup):
 
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        """Add a log message to the log buffer."""
 
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        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
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        if (self.max_log_length
 
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            and len(self.log) > self.max_log_length):
 
552
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            del self.log[0:len(self.log)-self.max_log_length-1]
 
553
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
554
 
                              coming_from=u"above")
 
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    def toggle_log_display(self):
 
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        """Toggle visibility of the log buffer."""
 
559
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        self.log_visible = not self.log_visible
 
561
 
        #self.log_message(u"Log visibility changed to: "
 
562
 
        #                 + unicode(self.log_visible))
 
 
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        self.log_message(u"Log visibility changed to: "
 
 
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                         + unicode(self.log_visible))
 
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    def change_log_display(self):
 
565
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        """Change type of log display.
 
 
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                    self.topwidget.set_focus(self.logbox)
 
702
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
704
 
            #    pass            # xxx end-of-buffer
 
705
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
707
 
            #    pass            # xxx beginning-of-buffer
 
708
 
            #elif key == u"ctrl e" or key == u"$":
 
709
 
            #    pass            # xxx move-end-of-line
 
710
 
            #elif key == u"ctrl a" or key == u"^":
 
711
 
            #    pass            # xxx move-beginning-of-line
 
712
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
714
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
717
 
            #    pass            # scroll up log
 
719
 
            #    pass            # scroll down log
 
 
441
            elif (key == u"end" or key == u"meta >" or key == u"G"
 
 
443
                pass            # xxx end-of-buffer
 
 
444
            elif (key == u"home" or key == u"meta <" or key == u"g"
 
 
446
                pass            # xxx beginning-of-buffer
 
 
447
            elif key == u"ctrl e" or key == u"$":
 
 
448
                pass            # xxx move-end-of-line
 
 
449
            elif key == u"ctrl a" or key == u"^":
 
 
450
                pass            # xxx move-beginning-of-line
 
 
451
            elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
 
453
            elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
 
458
                pass            # scroll down log
 
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            elif self.topwidget.selectable():
 
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                self.topwidget.keypress(self.size, key)