52 lines
881 B
JavaScript
52 lines
881 B
JavaScript
|
'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
|
||
|
|
}
|