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# Mandos Monitor - Control and monitor the Mandos server
 
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# Copyright © 2009-2012 Teddy Hogeborn
 
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# Copyright © 2009-2012 Björn Påhlsson
 
 
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# Copyright © 2009-2014 Teddy Hogeborn
 
 
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# Copyright © 2009-2014 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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domain = 'se.recompile'
 
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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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    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, **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.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("PropertyChanged",
 
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                                         self.property_changed,
 
 
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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 breaks 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(
 
 
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                self.proxy.GetAll(client_interface,
 
 
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                                  = dbus.PROPERTIES_IFACE))
 
 
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        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
 
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    def _property_changed(self, property, value):
 
 
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        """Helper which takes positional arguments"""
 
 
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        return self.property_changed(property=property, value=value)
 
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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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        # Update properties dict with new value
 
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        self.properties[property] = value
 
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    def delete(self, *args, **kwargs):
 
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        self.property_changed_match.remove()
 
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        super(MandosClientPropertyCache, self).__init__(
 
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class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
 
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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, logger=None, **kwargs):
 
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        # Called on update
 
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        self.update_hook = update_hook
 
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        # Called on delete
 
 
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        self.logger = logger
 
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        self._update_timer_callback_tag = None
 
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        self._update_timer_callback_lock = 0
 
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        # The widget shown normally
 
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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("")
 
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        super(MandosClientWidget, self).__init__(
 
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            update_hook=update_hook, delete_hook=delete_hook,
 
 
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        super(MandosClientWidget, self).__init__(**kwargs)
 
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        self.opened = False
 
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        last_checked_ok = isoformat_to_datetime(self.properties
 
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        if self.properties ["LastCheckerStatus"] != 0:
 
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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.match_objects = (
 
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            self.proxy.connect_to_signal("CheckerCompleted",
 
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                                         self.checker_completed,
 
 
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        #self.logger('Created client {0}'
 
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        #            .format(self.properties["Name"]))
 
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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 == "ApprovalPending":
 
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            using_timer(bool(value))
 
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        if property == "LastCheckerStatus":
 
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            using_timer(value != 0)
 
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            #self.logger('Checker for client {0} (command "{1}") was '
 
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            #            ' successful'.format(self.properties["Name"],
 
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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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        if flag and self._update_timer_callback_tag is None:
 
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            # Will update the shown timer value every second
 
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            self._update_timer_callback_tag = (gobject.timeout_add
 
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                                                self.update_timer))
 
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        elif old and self._update_timer_callback_lock == 0:
 
 
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        elif not (flag or self._update_timer_callback_tag is None):
 
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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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                          "bold-underline-blink":
 
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                              "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 = '{name}: '.format(name=self.properties["Name"])
 
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        if not self.properties["Enabled"]:
 
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            message = "DISABLED"
 
 
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            self.using_timer(False)
 
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        elif self.properties["ApprovalPending"]:
 
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            timeout = datetime.timedelta(milliseconds
 
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                                         = self.properties
 
 
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            last_approval_request = isoformat_to_datetime(
 
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                self.properties["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 = max(timeout - (datetime.datetime.utcnow()
 
 
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                                       - last_approval_request),
 
 
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                            datetime.timedelta())
 
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                timer = datetime.timedelta()
 
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            if self.properties["ApprovedByDefault"]:
 
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                message = "Approval in {0}. (d)eny?"
 
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                message = "Denial in {0}. (a)pprove?"
 
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            message = message.format(unicode(timer).rsplit(".", 1)[0])
 
 
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            message = message.format(str(timer).rsplit(".", 1)[0])
 
 
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            self.using_timer(True)
 
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        elif self.properties["LastCheckerStatus"] != 0:
 
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            # When checker has failed, show timer until client expires
 
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            expires = self.properties["Expires"]
 
 
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                expires = (datetime.datetime.strptime
 
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                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
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                timer = expires - datetime.datetime.utcnow()
 
 
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                timer = max(expires - datetime.datetime.utcnow(),
 
 
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                            datetime.timedelta())
 
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            message = ('A checker has failed! Time until client'
 
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                       ' gets disabled: {0}'
 
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                       .format(unicode(timer).rsplit(".", 1)[0]))
 
 
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                       .format(str(timer).rsplit(".", 1)[0]))
 
 
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            self.using_timer(True)
 
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            message = "enabled"
 
 
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            self.using_timer(False)
 
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        self._text = "{0}{1}".format(base, message)
 
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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 = [("normal", self._text)]
 
 
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        return True             # Keep calling this
 
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    def delete(self, *args, **kwargs):
 
 
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    def delete(self, **kwargs):
 
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        if self._update_timer_callback_tag is not None:
 
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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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        self.match_objects = ()
 
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        if self.delete_hook is not None:
 
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            self.delete_hook(self)
 
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        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
 
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        return super(MandosClientWidget, self).delete(**kwargs)
 
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    def render(self, maxcolrow, focus=False):
 
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        """Render differently if we have focus.
 
 
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    def property_changed(self, property=None, value=None,
 
 
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    def property_changed(self, property=None, **kwargs):
 
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        """Call self.update() if old value is not new value.
 
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        This overrides the method from MandosClientPropertyCache"""
 
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        property_name = unicode(property)
 
 
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        property_name = str(property)
 
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        old_value = self.properties.get(property_name)
 
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        super(MandosClientWidget, self).property_changed(
 
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            property=property, value=value, *args, **kwargs)
 
 
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            property=property, **kwargs)
 
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        if self.properties.get(property_name) != old_value:
 
 
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    "down" key presses, thus not allowing any containing widgets to
 
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    use them as an excuse to shift focus away from this widget.
 
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    def keypress(self, maxcolrow, key):
 
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        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
 
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    def keypress(self, *args, **kwargs):
 
 
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        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
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        if ret in ("up", "down"):
 
 
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                 "default", "default", None),
 
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                 "default", "default", "bold"),
 
 
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                 "bold", "default", "bold"),
 
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                ("underline-blink",
 
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                 "default", "default", "underline"),
 
 
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                 "underline,blink", "default", "underline,blink"),
 
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                 "default", "default", "standout"),
 
 
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                 "standout", "default", "standout"),
 
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                ("bold-underline-blink",
 
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                 "default", "default", ("bold", "underline")),
 
 
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                 "bold,underline,blink", "default", "bold,underline,blink"),
 
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                ("bold-standout",
 
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                 "default", "default", ("bold", "standout")),
 
 
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                 "bold,standout", "default", "bold,standout"),
 
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                ("underline-blink-standout",
 
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                 "default", "default", ("underline", "standout")),
 
 
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                 "underline,blink,standout", "default",
 
 
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                 "underline,blink,standout"),
 
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                ("bold-underline-blink-standout",
 
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                 "default", "default", ("bold", "underline",
 
 
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                 "bold,underline,blink,standout", "default",
 
 
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                 "bold,underline,blink,standout"),
 
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        if urwid.supports_unicode():
 
 
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            mandos_clients = (self.mandos_serv
 
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                              .GetAllClientsWithProperties())
 
 
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            if not mandos_clients:
 
 
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                self.log_message_raw(("bold", "Note: Server has no clients."))
 
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        except dbus.exceptions.DBusException:
 
 
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            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
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            mandos_clients = dbus.Dictionary()
 
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        (self.mandos_serv
 
 
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                            self.client_not_found,
 
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                            dbus_interface=server_interface,
 
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                            byte_arrays=True))
 
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        for path, client in mandos_clients.iteritems():
 
 
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        for path, client in mandos_clients.items():
 
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            client_proxy_object = self.bus.get_object(self.busname,
 
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            self.add_client(MandosClientWidget(server_proxy_object