Function maskedTextFrame

packages/cli/test/dev/utils.ts:284–297

(message: string)

}

function maskedTextFrame(message: string): Uint8Array<ArrayBufferLike> {
  const payload = Buffer.from(message);
  const mask = randomBytes(4);
  const frame = new Uint8Array(6 + payload.length);
  frame[0] = 0x81;
  frame[1] = 0x80 | payload.length;
  frame.set(mask, 2);

  for (let i = 0; i < payload.length; i++) {
    frame[6 + i] = payload[i] ^ mask[i % 4];
  }

  return frame;
}

function readTextFrame(
  buffer: Uint8Array<ArrayBufferLike>