queueitHelpers.js

const QueueIT = require("./sdk/queueit-knownuserv3-sdk.js");
const crypto = require('js-sha256');
const CLOUDFLARE_SDK_VERSION = "1.0.1";
exports.getParameterByName = function( url, name) {
    if (!url) url = window.location.href;
    name = name.replace(/[\[\]]/g, '\\$&');
    var regex = new RegExp('[?&]' + name + '(=([^&#]*)|&|#|$)'),
        results = regex.exec(url);
    if (!results) return null;
    if (!results[2]) return '';
    return decodeURIComponent(results[2].replace(/\+/g, ' '));
}
exports.configureKnownUserHashing= function() {
    QueueIT.KnownUserV3.SDK.Utils.generateSHA256Hash = function (secretKey, stringToHash) {      
        const hash = crypto.sha256.hmac(secretKey, stringToHash)
        return hash;
    };
}

exports.addKUPlatformVersion= function(redirectQueueUrl)
{
    return redirectQueueUrl + "&kupver=cloudflare-" + CLOUDFLARE_SDK_VERSION;
}

// $CVSHeader: _freebeer/www/lib/bin2hex.js,v 1.2 2004/03/07 17:51:35 ross Exp $

// Copyright (c) 2002-2004, Ross Smith.  All rights reserved.
// Licensed under the BSD or LGPL License. See license.txt for details.


var _hex2bin = [
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
     0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, // 0-9
     0,10,11,12,13,14,15, 0, 0, 0, 0, 0, 0, 0, 0, 0, // A-F
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
     0,10,11,12,13,14,15, 0, 0, 0, 0, 0, 0, 0, 0, 0, // a-f
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
];


exports.hex2bin = function(str) {
    var len = str.length;
    var rv = '';
    var i = 0;

    var c1;
    var c2;

    while (len > 1) {
        h1 = str.charAt(i++);
        c1 = h1.charCodeAt(0);
        h2 = str.charAt(i++);
        c2 = h2.charCodeAt(0);
        
        rv += String.fromCharCode((_hex2bin[c1] << 4) + _hex2bin[c2]);
        len -= 2;
    }

    return rv;
}