class Puma::Client

def try_to_finish
  if env[CONTENT_LENGTH] && above_http_content_limit(env[CONTENT_LENGTH].to_i)
    @http_content_length_limit_exceeded = true
  end
  if @http_content_length_limit_exceeded
    @buffer = nil
    @body = EmptyBody
    set_ready
    return true
  end
  return read_body if in_data_phase
  data = nil
  begin
    data = @io.read_nonblock(CHUNK_SIZE)
  rescue IO::WaitReadable
    return false
  rescue EOFError
    # Swallow error, don't log
  rescue SystemCallError, IOError
    raise ConnectionError, "Connection error detected during read"
  end
  # No data means a closed socket
  unless data
    @buffer = nil
    set_ready
    raise EOFError
  end
  if @buffer
    @buffer << data
  else
    @buffer = data
  end
  return false unless try_to_parse_proxy_protocol
  @parsed_bytes = parser_execute
  if @parser.finished? && above_http_content_limit(@parser.body.bytesize)
    @http_content_length_limit_exceeded = true
  end
  if @parser.finished?
    setup_body
  elsif @parsed_bytes >= MAX_HEADER
    raise HttpParserError,
      "HEADER is longer than allowed, aborting client early."
  else
    false
  end
end