zor_download_flash_userscript.js

// ==UserScript==
// @name        z0r.de download button
// @include     https://z0r.de/*
// @version     1
// @grant       none
// ==/UserScript==

window.addEventListener('load', function(){

  // New element
  var button = document.createElement('a');
  var button_text = document.createTextNode('Download');
  button.appendChild(button_text);

  // CSS
  button.style.backgroundColor = "#555555";
  button.style.color           = "#dedede";
  button.style.padding         = "3px";
  button.style.position        = "fixed";
  button.style.top             = "5px";
  button.style.right           = "5px";
  
  // Check if flash exists on site and get the data.
  var flash = document.getElementsByTagName('object');
  button.style.display = ( (flash[0] === undefined) ? "none" : "block" );
  var flash_filename = flash[0].getAttribute("data");
  
  // Set attributes to link element
  button.setAttribute("href", `https://z0r.de${flash_filename}`);
  button.setAttribute("download", flash_filename);

  document.body.appendChild(button);

});