static read()

in src/extensions.js [47:72]

• 25 lines of code
• 5 McCabe index (conditional complexity)

  static read(messageType, buf) {
    const type = buf.readUint16();
    let ext = {
      TYPE_TAG: type,
    };
    buf.readVector16(buf => {
      switch (type) {
        case EXTENSION_TYPE.PRE_SHARED_KEY:
          ext = PreSharedKeyExtension._read(messageType, buf);
          break;
        case EXTENSION_TYPE.SUPPORTED_VERSIONS:
          ext = SupportedVersionsExtension._read(messageType, buf);
          break;
        case EXTENSION_TYPE.PSK_KEY_EXCHANGE_MODES:
          ext = PskKeyExchangeModesExtension._read(messageType, buf);
          break;
        default:
          // Skip over unrecognised extensions.
          buf.incr(buf.length());
      }
      if (buf.hasMoreBytes()) {
        throw new TLSError(ALERT_DESCRIPTION.DECODE_ERROR);
      }
    });
    return ext;
  }