Bot.py

import sys
sys.path.append("../3rdParty")
import sleekxmpp

class Bot :
  def __init__(self, jid, password, backend, url) :
    self.url = url
    self.xmpp = sleekxmpp.ClientXMPP(jid, password)
    self.xmpp.add_event_handler("session_start", self.handleXMPPConnected)
    for event in ["message", "got_online", "got_offline", "changed_status"] :
      self.xmpp.add_event_handler(event, self.handleIncomingXMPPEvent)
    self.backend = backend
    self.backend.addMessageHandler(self.handleMessageAddedToBackend)

  def handleXMPPConnected(self, event):
    self.xmpp.sendPresence()

  def handleIncomingXMPPEvent(self, event):
    msgLocations = {sleekxmpp.stanza.presence.Presence: "status",
                    sleekxmpp.stanza.message.Message: "body"}

    message = event[msgLocations[type(event)]]
    user = self.backend.getUserFromJID(event["from"].jid)
    if user is not None:
      self.backend.addMessageFromUser(message, user)
  
  def handleMessageAddedToBackend(self, message) :
    body = message.user + ": " + message.text
    htmlBody = "<p><a href=\"%(uri)s\">%(user)s</a>: %(message)s</p>" % {
      "uri": self.url + "/" + message.user,
      "user" : message.user, "message" : message.text }
    for subscriberJID in self.backend.getSubscriberJIDs(message.user) :
      self.xmpp.sendMessage(subscriberJID, body, mhtml=htmlBody)
  
  def start(self) :
    self.xmpp.connect()
    self.xmpp.process()