class Rack::Handler::FastCGI

def self.serve(request, 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      => Rack::VERSION,
    RACK_INPUT        => rack_input,
    RACK_ERRORS       => request.err,
    RACK_MULTITHREAD  => false,
    RACK_MULTIPROCESS => true,
    RACK_RUNONCE      => 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 "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