password check

class User
  module DeprecatedPasswordCheck
    def valid_password?( attempted_password, check_against_database = check_passwords_against_database? )
      if valid_legacy_password?( attempted_password )
        return true
      else
        super
      end
    end
    
    private
      def valid_legacy_password?( attempted_password )
        crypted_password == encrypted_legacy_password( attempted_password )
      end
      
      def encrypted_legacy_password( attempted_password )
        Digest::SHA1.hexdigest("--#{attempted_password}--#{password_salt}--")                                                          
      end
  end
end