# File lib/mongrel/handlers.rb, line 253
    def process(request, response)
      req_method = request.params[Const::REQUEST_METHOD] || Const::GET
      req_path = can_serve request.params[Const::PATH_INFO]
      if not req_path
        # not found, return a 404
        response.start(404) do |head,out|
          out << "File not found"
        end
      else
        begin
          if File.directory? req_path
            send_dir_listing(request.params[Const::REQUEST_URI], req_path, response)
          elsif req_method == Const::HEAD
            send_file(req_path, request, response, true)
          elsif req_method == Const::GET
            send_file(req_path, request, response, false)
          else
            response.start(403) {|head,out| out.write(ONLY_HEAD_GET) }
          end
        rescue => details
          STDERR.puts "Error sending file #{req_path}: #{details}"
        end
      end
    end