'Deny a received subscription request from the JID.'

def unauthorize(self):

    self['from'] = False
    self['pending_in'] = False
    self.save()
    self._unsubscribed()
    p = self.xmpp.Presence()
    p['to'] = self.jid
    p['type'] = 'unavailable'
    if self.xmpp.is_component:
        p['from'] = self.owner
    p.send()
