require 'xmpp4r'
 require 'xmpp4r/roster'
 require 'cgi'
 
 module Signin

     include Jabber

     def self.try_login(jid, pass)
         @client = Client.new(jid)

         begin
             connect(pass)
             @client

         rescue Exception => e
             raise LoginError, e.message

         end
     end

     def self.connect(pass)
         @client.connect()
         @client.auth(pass)
     end

     def self.is_facebook(client_jid)
         client_jid.domain == 'chat.facebook.com'
     end
 

     class LoginError < Exception

     end

 end