RN Decrypt

rn_decrypt.js

// ==UserScript==
// @name            RN Decrypt
// @description     Decrypt RN Posts
// @include         https://www.ruhrnachrichten.de/*
// @grant           none
// ==/UserScript==

// Install uBlock and block *$script,domain=ruhrnachrichten.de for hiding the "Please subscribe" layover
(function() {
var key="az by cx dw ev fu gt hs ir jq kp lo mn ,ü ßä ?ö AÖ BÜ CÄ DZ EY FX GW HV IU JT KS LR MQ NP 09 18 27 36 45";
var h={};
key.split(" ").forEach(
  function(pair) {
    h[pair[0]]=pair[1]; h[pair[1]]=pair[0];
    });
var count=document.evaluate('count(//div[@class="PremiumContent PianoContent"]/p)', document, null, XPathResult.ANY_TYPE, null).numberValue;
console.log(count);
for(var i=0; i<count;i++) {
  var elm=document.evaluate('//div[@class="PremiumContent PianoContent"]/p[' + (i+1) + ']/text()', document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
  if (!elm) continue;
  elm.textContent = (elm.textContent.split("").map(function(c) {
    if (c in h) return h[c];
    else return c;
  }).join(""));
}

})();