auth_attributes_for

# File activeresource/lib/active_resource/connection.rb, line 260
      def auth_attributes_for(uri, request_digest, params)
        [
          %(username="#{@user}"),
          %(realm="#{params['realm']}"),
          %(qop="#{params['qop']}"),
          %(uri="#{uri.path}"),
          %(nonce="#{params['nonce']}"),
          %(nc="0"),
          %(cnonce="#{params['cnonce']}"),
          %(opaque="#{params['opaque']}"),
          %(response="#{request_digest}")].join(", ")
      end