serve (Rack::Handler::FastCGI)

    # File lib/rack/handler/fastcgi.rb, line 27
          def self.serve(request, app)
            app = Rack::ContentLength.new(app)

            env = request.env
            env.delete "HTTP_CONTENT_LENGTH"

            env["SCRIPT_NAME"] = ""  if env["SCRIPT_NAME"] == "/"

            rack_input = RewindableInput.new(request.in)

            env.update({"rack.version" => [0,1],
                         "rack.input" => rack_input,
                         "rack.errors" => request.err,

                         "rack.multithread" => false,
                         "rack.multiprocess" => true,
                         "rack.run_once" => false,

                         "rack.url_scheme" => ["yes", "on", "1"].include?(env["HTTPS"]) ? "https" : "http"
                       })

            env["QUERY_STRING"] ||= ""
            env["HTTP_VERSION"] ||= env["SERVER_PROTOCOL"]
            env["REQUEST_PATH"] ||= "/"
            env.delete "PATH_INFO"  if env["PATH_INFO"] == ""
            env.delete "CONTENT_TYPE"  if env["CONTENT_TYPE"] == ""
            env.delete "CONTENT_LENGTH"  if env["CONTENT_LENGTH"] == ""

            begin
              status, headers, body = app.call(env)
              begin
                send_headers request.out, status, headers
                send_body request.out, body
              ensure
                body.close  if body.respond_to? :close
              end
            ensure
              rack_input.close
              request.finish
            end
          end