Gecko [ unitednationsplay.com ]

Name	Size	Permission	Date
buffer-util.js	2.84 KB	-rw-rw-r--	2022-08-30 11:49
constants.js	360 B	-rw-rw-r--	2022-08-30 11:49
event-target.js	6.44 KB	-rw-rw-r--	2022-08-30 11:49
extension.js	6.04 KB	-rw-rw-r--	2022-08-30 11:49
limiter.js	1.01 KB	-rw-rw-r--	2022-08-30 11:49
permessage-deflate.js	13.67 KB	-rw-rw-r--	2022-08-30 11:49
receiver.js	14.06 KB	-rw-rw-r--	2022-08-30 11:49
sender.js	10.86 KB	-rw-rw-r--	2022-08-30 11:49
stream.js	4.59 KB	-rw-rw-r--	2022-08-30 11:49
subprotocol.js	1.46 KB	-rw-rw-r--	2022-08-30 11:49
validation.js	3.07 KB	-rw-rw-r--	2022-08-30 11:49
websocket-server.js	13.38 KB	-rw-rw-r--	2022-08-30 11:49
websocket.js	28.9 KB	-rw-rw-r--	2022-08-30 11:49

Rename

'use strict';

//
// Allowed token characters:
//
// '!', '#', '$', '%', '&', ''', '*', '+', '-',
// '.', 0-9, A-Z, '^', '_', '`', a-z, '|', '~'
//
// tokenChars[32] === 0 // ' '
// tokenChars[33] === 1 // '!'
// tokenChars[34] === 0 // '"'
// ...
//
// prettier-ignore
const tokenChars = [
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0 - 15
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 16 - 31
  0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, // 32 - 47
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, // 48 - 63
  0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 64 - 79
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, // 80 - 95
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 96 - 111
  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0 // 112 - 127
];

/**
 * Checks if a status code is allowed in a close frame.
 *
 * @param {Number} code The status code
 * @return {Boolean} `true` if the status code is valid, else `false`
 * @public
 */
function isValidStatusCode(code) {
  return (
    (code >= 1000 &&
      code <= 1014 &&
      code !== 1004 &&
      code !== 1005 &&
      code !== 1006) ||
    (code >= 3000 && code <= 4999)
  );
}

/**
 * Checks if a given buffer contains only correct UTF-8.
 * Ported from https://www.cl.cam.ac.uk/%7Emgk25/ucs/utf8_check.c by
 * Markus Kuhn.
 *
 * @param {Buffer} buf The buffer to check
 * @return {Boolean} `true` if `buf` contains only correct UTF-8, else `false`
 * @public
 */
function _isValidUTF8(buf) {
  const len = buf.length;
  let i = 0;

while (i < len) {
    if ((buf[i] & 0x80) === 0) {
      // 0xxxxxxx
      i++;
    } else if ((buf[i] & 0xe0) === 0xc0) {
      // 110xxxxx 10xxxxxx
      if (
        i + 1 === len ||
        (buf[i + 1] & 0xc0) !== 0x80 ||
        (buf[i] & 0xfe) === 0xc0 // Overlong
      ) {
        return false;
      }

i += 2;
    } else if ((buf[i] & 0xf0) === 0xe0) {
      // 1110xxxx 10xxxxxx 10xxxxxx
      if (
        i + 2 >= len ||
        (buf[i + 1] & 0xc0) !== 0x80 ||
        (buf[i + 2] & 0xc0) !== 0x80 ||
        (buf[i] === 0xe0 && (buf[i + 1] & 0xe0) === 0x80) || // Overlong
        (buf[i] === 0xed && (buf[i + 1] & 0xe0) === 0xa0) // Surrogate (U+D800 - U+DFFF)
      ) {
        return false;
      }

i += 3;
    } else if ((buf[i] & 0xf8) === 0xf0) {
      // 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
      if (
        i + 3 >= len ||
        (buf[i + 1] & 0xc0) !== 0x80 ||
        (buf[i + 2] & 0xc0) !== 0x80 ||
        (buf[i + 3] & 0xc0) !== 0x80 ||
        (buf[i] === 0xf0 && (buf[i + 1] & 0xf0) === 0x80) || // Overlong
        (buf[i] === 0xf4 && buf[i + 1] > 0x8f) ||
        buf[i] > 0xf4 // > U+10FFFF
      ) {
        return false;
      }

i += 4;
    } else {
      return false;
    }
  }

return true;
}

try {
  const isValidUTF8 = require('utf-8-validate');

module.exports = {
    isValidStatusCode,
    isValidUTF8(buf) {
      return buf.length < 150 ? _isValidUTF8(buf) : isValidUTF8(buf);
    },
    tokenChars
  };
} catch (e) /* istanbul ignore next */ {
  module.exports = {
    isValidStatusCode,
    isValidUTF8: _isValidUTF8,
    tokenChars
  };
}