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Download Button for GreasyFork scripts

Adds a button to download the script

  1. // ==UserScript==
  2. // @name         Download Button for GreasyFork scripts
  3. // @version      1.2
  4. // @author       Rust1667
  5. // @description  Adds a button to download the script
  6. // @match        https://greasyfork.org/*/scripts/*
  7. // @match        https://sleazyfork.org/*/scripts/*
  8. // @grant        none
  9. // @icon         https://www.google.com/s2/favicons?sz=64&domain=greasyfork.org
  10. // @namespace https://greasyfork.org/users/980489
  11. // ==/UserScript==
  12.  
  13. (function() {
  14.     'use strict';
  15.  
  16.     // Find the install link element
  17.     var installLink = document.querySelector('#install-area .install-link');
  18.  
  19.     // Determine the file name
  20.     const installURLlink = installLink.getAttribute('href');
  21.  
  22.     function getFilenameFromUrl() {
  23.         const url = installURLlink;
  24.         var lastSlashIndex = url.lastIndexOf('/');
  25.         var filenameWithExtension = url.substring(lastSlashIndex + 1);
  26.         var decodedFilename = filenameWithExtension.replace(/%20/g, '_');
  27.         return decodedFilename;
  28.     }
  29.  
  30.     // Create a download button
  31.     var downloadButton = document.createElement('button');
  32.     downloadButton.textContent = 'Download Script';
  33.     downloadButton.style.marginLeft = '10px';
  34.  
  35.     // Add click event listener to the download button
  36.     downloadButton.addEventListener('click', function() {
  37.         var scriptUrl = installLink.getAttribute('href');
  38.         downloadFile(scriptUrl);
  39.     });
  40.  
  41.     // Insert the download button after the install link
  42.     installLink.parentNode.insertBefore(downloadButton, installLink.nextSibling);
  43.  
  44.     function downloadFile(url) {
  45.         var xhr = new XMLHttpRequest();
  46.         xhr.open('GET', url, true);
  47.         xhr.responseType = 'blob';
  48.         xhr.onload = function() {
  49.             if (xhr.status === 200) {
  50.                 var blob = xhr.response;
  51.                 var url = window.URL.createObjectURL(blob);
  52.                 var a = document.createElement('a');
  53.                 a.href = url;
  54.                 a.download = getFilenameFromUrl();
  55.                 document.body.appendChild(a);
  56.                 a.click();
  57.                 window.URL.revokeObjectURL(url);
  58.             }
  59.         };
  60.         xhr.send();
  61.     }
  62. })();