class Jekyll::Livereload::HttpAwareConnection

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

Attributes

reload_file[R]

Public Class Methods

new(opts) click to toggle source
Calls superclass method
# File lib/jekyll-livereload/websocket.rb, line 39
def initialize(opts)
  @reload_file = File.join(LIVERELOAD_DIR, "livereload.js")
  super opts
end

Public Instance Methods

dispatch(data) click to toggle source
Calls superclass method
# File lib/jekyll-livereload/websocket.rb, line 44
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 =~ /^\/livereload.js/
    headers = [
      'HTTP/1.1 200 OK',
      'Content-Type: application/javascript',
      "Content-Length: #{File.size(reload_file)}",
      '',
      '',
    ].join("\r\n")
    send_data(headers)
    stream_file_data(reload_file).callback do
      close_connection_after_writing
    end
  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