Changes needed to make XMPP-TDG example 14-4 work with SleekXMPP version 1.0

XMPP-TDG_ex_14-4.py

  def handleXMPPPresenceProbe(self, event) :
    self.xmpp.sendPresence(pto = event["from"])

  def handleXMPPPresenceSubscription(self, subscription) :
    if subscription["type"] == "subscribe" :
      userJID = subscription["from"].jid
      self.xmpp.sendPresenceSubscription(pto=userJID, ptype="subscribed")
      self.xmpp.sendPresence(pto = userJID)
      self.xmpp.sendPresenceSubscription(pto=userJID, ptype="subscribe")

  def handleMessageAddedToBackend(self, message) :
    body = message.user + ": " + message.text
    for subscriberJID in self.backend.getSubscriberJIDs(message.user) :
      self.xmpp.sendMessage(subscriberJID, body, mfrom=self.xmpp.jid)