Devise::Models::CasAuthenticatable::ClassMethods

# File lib/devise_cas_authenticatable/model.rb, line 18
def authenticate_with_cas_ticket(ticket)
  ::Devise.cas_client.validate_service_ticket(ticket) unless ticket.has_been_validated?
  
  if ticket.is_valid?
   conditions = {::Devise.cas_username_column => ticket.respond_to?(:user) ? ticket.user : ticket.response.user} 
    # We don't want to override Devise 1.1's find_for_authentication
    resource = if respond_to?(:find_for_authentication)
      find_for_authentication(conditions)
    else
      find(:first, :conditions => conditions)
    end
    
    resource = new(conditions) if (resource.nil? and ::Devise.cas_create_user?)
    return nil unless resource
    
    if resource.respond_to? :cas_extra_attributes=
      resource.cas_extra_attributes = ticket.respond_to?(:extra_attributes) ? ticket.extra_attributes : ticket.response.extra_attributes
    end
    resource.save
    resource
  end
end