responses.rb:68-81 from rubycas-client 2.2.1

gistfile1.rb

        @extra_attributes = {}
        @xml.elements.to_a('//cas:authenticationSuccess/*').each do |el|
          # generating the hash requires prefixes to be defined, so add all of the namespaces
          el.namespaces.each {|k,v| el.add_namespace(k,v)}
          @extra_attributes.merge!(Hash.from_xml(el.to_s)) unless (el == cas_user)
        end 
              
        @extra_attributes.each do |k, v|
          if v.blank?
            @extra_attributes[k] = nil 
          else
            @extra_attributes[k] = YAML.load(v)
          end 
        end