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: / usr / share / node_modules / undici / lib / websocket /

Filename : constants.js

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'use strict'

// This is a Globally Unique Identifier unique used
// to validate that the endpoint accepts websocket
// connections.
// See https://www.rfc-editor.org/rfc/rfc6455.html#section-1.3
const uid = '258EAFA5-E914-47DA-95CA-C5AB0DC85B11'

/** @type {PropertyDescriptor} */
const staticPropertyDescriptors = {
  enumerable: true,
  writable: false,
  configurable: false
}

const states = {
  CONNECTING: 0,
  OPEN: 1,
  CLOSING: 2,
  CLOSED: 3
}

const opcodes = {
  CONTINUATION: 0x0,
  TEXT: 0x1,
  BINARY: 0x2,
  CLOSE: 0x8,
  PING: 0x9,
  PONG: 0xA
}

const maxUnsigned16Bit = 2 ** 16 - 1 // 65535

const parserStates = {
  INFO: 0,
  PAYLOADLENGTH_16: 2,
  PAYLOADLENGTH_64: 3,
  READ_DATA: 4
}

const emptyBuffer = Buffer.allocUnsafe(0)

module.exports = {
  uid,
  staticPropertyDescriptors,
  states,
  opcodes,
  maxUnsigned16Bit,
  parserStates,
  emptyBuffer
}