class WEBrick::HTTPResponse

def send_body_string(socket)
  if @request_method == "HEAD"
    # do nothing
  elsif chunked?
    body ? @body.bytesize : 0
    while buf = @body[@sent_size, @buffer_size]
      break if buf.empty?
      size = buf.bytesize
      data = "#{size.to_s(16)}#{CRLF}#{buf}#{CRLF}"
      buf.clear
      socket.write(data)
      @sent_size += size
    end
    socket.write("0#{CRLF}#{CRLF}")
  else
    if @body && @body.bytesize > 0
      socket.write(@body)
      @sent_size = @body.bytesize
    end
  end
end