// ==UserScript==// @name         抖音仿idm快速下载// @namespace    http://tampermonkey.net/// @version      0.1// @description  获取正在播放的video标签的视频地址，并在video元素的绝对右上角显示下载悬浮按钮// @author       hunmer// @match        https://www.douyin.com/search/*// @match        https://www.douyin.com/video/*// @grant        GM_xmlhttpRequest// @grant        GM_addElement// @grant        unsafeWindow// @license MIT// ==/UserScript==(function() {var INITED = falseconst loadRes = (files, callback) => new Promise(reslove => {files = [...files]var next = () => {let url = files.shift()if (url == undefined) {callback && callback()return reslove()}let fileref, ext = url.split('.').at(-1)if (ext == 'js') {fileref = GM_addElement('script', {src: url,type: ext == 'js' ? "text/javascript" : 'module'})} else if (ext == "css") {fileref = GM_addElement('link', {href: url,rel: "stylesheet",type: "text/css"})}if (fileref != undefined) {let el = document.getElementsByTagName("head")[0].appendChild(fileref)el.onload = next, el.onerror = next} else {next()}}next()})const getParent = (el, callback) => {let par = elwhile(par && !callback(par)){par = par.parentElement}return par}const getHeaders = url => {return {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36',// 'Referer': url,'Range': 'bytes=0-','Referer': location.protocol+'//'+ location.host}}function addDownloadButtonToVideo(videoElement) {const card = getParent(videoElement, el => el.className == 'search-r###lt-card') ?? document.bodyconst downloadButton = document.createElement('button');downloadButton.textContent = '下载';downloadButton.style.position = 'absolute';downloadButton.style.top = '0';downloadButton.style.right = '0';downloadButton.style.zIndex = '2000';downloadButton.style.backgroundColor = 'rgba(0, 0, 0, 0.7)';downloadButton.style.color = 'white';downloadButton.style.border = 'none';downloadButton.style.padding = '5px 10px';downloadButton.style.borderRadius = '5px';downloadButton.style.cursor = 'pointer';const videoSrc = videoElement.querySelectorAll('source')[0].srcif (!videoSrc) {return console.error('无法获取视频地址');}downloadButton.addEventListener('click', ev => {ev.stopPropagation(true) & ev.preventDefault()let name = (card.querySelector('.pQBVl0z4')?.outerText || card.querySelector('.BjLsdJMi')?.outerText || 'video')+'.mp4'let url = videoSrc, headers = getHeaders(url)console.log({name, url})GM_xmlhttpRequest({url, headers,redirect: 'follow', responseType: 'blob', method: "GET",onload: ({response, status}) => {const callback = () => unsafeWindow.saveAs(response, name)if(!INITED){loadRes(['https://cdn.jsdelivr.net/npm/[email protected]/dist/ponyfill.min.js', 'https://cdn.jsdelivr.net/npm/[email protected]/dist/FileSaver.min.js'], () => {INITED = truecallback()})}else{callback()}}})});videoElement.parentNode.insertBefore(downloadButton, videoElement.nextSibling);}const observer = new MutationObserver((mutations) => {mutations.forEach((mutation) => {mutation.addedNodes.forEach((node) => {if (node.tagName === 'VIDEO') {addDownloadButtonToVideo(node);}});});});observer.observe(document.body, {childList: true,subtree: true});// 初始化页面中已有的video元素document.querySelectorAll('video').forEach((videoElement) => {addDownloadButtonToVideo(videoElement);});})();