class Jekyll::Commands::Serve::HttpAwareConnection

class addresses the dual protocols that the server needs to understand.
despite the fact that the protocol itself uses WebSockets. This custom connection
The LiveReload protocol requires the server to serve livereload.js over HTTP

def dispatch(data)

rubocop:disable Metrics/MethodLength 
def dispatch(data)
  parser = Http::Parser.new
  parser << data
  # WebSockets requests will have a Connection: Upgrade header
  if parser.http_method != "GET" || parser.upgrade?
    super
  elsif parser.request_url.start_with?("/livereload.js")
    headers = [
      "HTTP/1.1 200 OK",
      "Content-Type: application/javascript",
      "Content-Length: #{reload_size}",
      "",
      "",
    ].join("\r\n")
    send_data(headers)
    # stream_file_data would free us from keeping livereload.js in memory
    # but JRuby blocks on that call and never returns
    send_data(reload_body)
    close_connection_after_writing
  else
    body = "This port only serves livereload.js over HTTP.\n"
    headers = [
      "HTTP/1.1 400 Bad Request",
      "Content-Type: text/plain",
      "Content-Length: #{body.bytesize}",
      "",
      "",
    ].join("\r\n")
    send_data(headers)
    send_data(body)
    close_connection_after_writing
  end
end

def initialize(_opts) 

def initialize(_opts)
  # If EventMachine SSL support on Windows ever gets better, the code below will
  # set up the reactor to handle SSL
  #
  # @ssl_enabled = opts["ssl_cert"] && opts["ssl_key"]
  # if @ssl_enabled
  #   em_opts[:tls_options] = {
  #   :private_key_file => Jekyll.sanitized_path(opts["source"], opts["ssl_key"]),
  #   :cert_chain_file  => Jekyll.sanitized_path(opts["source"], opts["ssl_cert"])
  #   }
  #   em_opts[:secure] = true
  # end
  # This is too noisy even for --verbose, but uncomment if you need it for
  # a specific WebSockets issue.  Adding ?LR-verbose=true onto the URL will
  # enable logging on the client side.
  # em_opts[:debug] = true
  em_opts = {}
  super(em_opts)
  reload_file = File.join(Serve.singleton_class::LIVERELOAD_DIR, "livereload.js")
  @reload_body = File.read(reload_file)
  @reload_size = @reload_body.bytesize
end