static fromBytes()

in src/alerts.js [45:59]

• 14 lines of code
• 4 McCabe index (conditional complexity)

  static fromBytes(bytes) {
    if (bytes.byteLength !== 2) {
      throw new TLSError(ALERT_DESCRIPTION.DECODE_ERROR);
    }
    switch (bytes[1]) {
      case ALERT_DESCRIPTION.CLOSE_NOTIFY:
        if (bytes[0] !== ALERT_LEVEL.WARNING) {
          // Close notifications should be fatal.
          throw new TLSError(ALERT_DESCRIPTION.ILLEGAL_PARAMETER);
        }
        return new TLSCloseNotify();
      default:
        return new TLSError(bytes[1]);
    }
  }