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Fix RFD Affiliate Link

A 20 minutes attempt to fix RFD Affliated Link

// ==UserScript==
// @name         Fix RFD Affiliate Link
// @namespace    http://tampermonkey.net/
// @version      0.7
// @description  A 20 minutes attempt to fix RFD Affliated Link
// @author       Chatbox
// @match        forums.redflagdeals.com/*/*
// @match        www.redflagdeals.com/deal/*/*
// @grant        none
// ==/UserScript==

//Credit to https://www.sitepoint.com/get-url-parameters-with-javascript/ for the getAllUrlParams function.

(function() {

    function getAllUrlParams(url) {

  // get query string from url (optional) or window
  var queryString = url ? url.split('?')[1] : window.location.search.slice(1);

  // we'll store the parameters here
  var obj = {};

  // if query string exists
  if (queryString) {

    // stuff after # is not part of query string, so get rid of it
    queryString = queryString.split('#')[0];

    // split our query string into its component parts
    var arr = queryString.split('&');

    for (var i=0; i<arr.length; i++) {
      // separate the keys and the values
      var a = arr[i].split('=');

      // in case params look like: list[]=thing1&list[]=thing2
      var paramNum = undefined;
      var paramName = a[0].replace(/\[\d*\]/, function(v) {
        paramNum = v.slice(1,-1);
        return '';
      });

      // set parameter value (use 'true' if empty)
      var paramValue = typeof(a[1])==='undefined' ? true : a[1];

      // (optional) keep case consistent
      paramName = paramName.toLowerCase();
      //paramValue = paramValue.toLowerCase();

      // if parameter name already exists
      if (obj[paramName]) {
        // convert value to array (if still string)
        if (typeof obj[paramName] === 'string') {
          obj[paramName] = [obj[paramName]];
        }
        // if no array index number specified...
        if (typeof paramNum === 'undefined') {
          // put the value on the end of the array
          obj[paramName].push(paramValue);
        }
        // if array index number specified...
        else {
          // put the value at that index number
          obj[paramName][paramNum] = paramValue;
        }
      }
      // if param name doesn't exist yet, set it
      else {
        obj[paramName] = paramValue;
      }
    }
  }

  return obj;
}
    'use strict';

    var els;
    let potentialParamName = ['url', 'murl', 'location', 'u', 'p'];
    var lnk;
    var title;
    var i=0, j=0;

    els = document.querySelectorAll('[title="RedFlagDeals.com Affiliate Link"]');

    for(i=0;i<els.length;i++) {
        var val;
        var parms;
        lnk = els[i];
        parms = getAllUrlParams(lnk.getAttribute("href"));
        j=0;

        do {
            val = parms[potentialParamName[j++]];
        } while ((val == null || val == undefined) && j < potentialParamName.length);

        if(val != undefined) {
            lnk.setAttribute("href", decodeURIComponent( val ));
            lnk.setAttribute("title", "Un-affiliated Link...hopefully");
        }

    }

})();