UNPKG

687 BJavaScriptView Raw
1'use strict';
2
3try {
4 const isValidUTF8 = require('utf-8-validate');
5
6 exports.isValidUTF8 = typeof isValidUTF8 === 'object'
7 ? isValidUTF8.Validation.isValidUTF8 // utf-8-validate@<3.0.0
8 : isValidUTF8;
9} catch (e) /* istanbul ignore next */ {
10 exports.isValidUTF8 = () => true;
11}
12
13/**
14 * Checks if a status code is allowed in a close frame.
15 *
16 * @param {Number} code The status code
17 * @return {Boolean} `true` if the status code is valid, else `false`
18 * @public
19 */
20exports.isValidStatusCode = (code) => {
21 return (
22 (code >= 1000 &&
23 code <= 1013 &&
24 code !== 1004 &&
25 code !== 1005 &&
26 code !== 1006) ||
27 (code >= 3000 && code <= 4999)
28 );
29};