sS readHttpHeaderLine(InputStream inputStream) throws IOException {
  new ByteArrayOutputStream byteArrayOutputStream;
  int c;
  for (c = inputStream.read(); c != '\n' && c != -1 ; c = inputStream.read())
    if (c != '\r')
      byteArrayOutputStream.write(c);
  if (c == -1 && byteArrayOutputStream.size() == 0) null;
  ret byteArrayOutputStream.toString("US-ASCII");
}