☰

lurldownloader

download file in lurl

  1. // ==UserScript==
  2. // @name              lurldownloader
  3. // @version           0.0.1
  4. // @author            Zoosewu
  5. // @description       download file in lurl
  6. // @match             https://lurl.cc/*
  7. // @license           MIT
  8. // @name:zh-TW        lurl下載器
  9. // @namespace         https://github.com/zoosewu/
  10. // @description:zh-tw 下載lurl的檔案
  11. // @run-at            document-idle
  12. // @homepageURL       https://github.com/zoosewu/
  13. // ==/UserScript==
  14.  
  15. (function () {
  16.   'use strict';
  17.   const body = $('body')
  18.   body.append($("<button id='z-download-button' type='button'>download</button>"))
  19.   body.append($("<label id='z-download-label' for='url'>url: </label>"))
  20.   body.append($("<input id='z-download-input' type='text' id='url' name='url' required size='140'>"))
  21.   const button = $("#z-download-button")
  22.   const input = $("#z-download-input")
  23.   button.on("click", function () {
  24.     download(input[0].value)
  25.   });
  26. })();
  27. const download = (link) => {
  28.   console.log('link: ', link);
  29.   console.log('start downloading file,please wait a minute...');
  30.   const xhr = new XMLHttpRequest();
  31.   xhr.open('GET', link, true);
  32.   xhr.responseType = 'blob';
  33.   xhr.onload = function () {
  34.     console.log('file downloaded.');
  35.     const urlCreator = window.URL || window.webkitURL;
  36.     const imageUrl = urlCreator.createObjectURL(this.response);
  37.     const tag = document.createElement('a');
  38.     tag.href = imageUrl;
  39.     tag.target = '_blank';
  40.     const regex = /[^\/\\&\?]+\.\w{3,4}(?=([\?&].*$|$))/;
  41.     const result = regex.exec(link);
  42.     let name = 'download.jpg';
  43.     if (result && result.length > 0) name = result[0]
  44.     tag.download = name;
  45.     document.body.appendChild(tag);
  46.     tag.click();
  47.     document.body.removeChild(tag);
  48.   };
  49.   xhr.onerror = err => { console.log('failed to download file'); };
  50.   xhr.send();
  51. }