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Twitter 下载视频

一键导向下载视频的网页。

目前为 2020-09-28 提交的版本。查看 最新版本。

  1. // ==UserScript==
  2. // @name                Twitter: Download Video
  3. // @name:zh-TW          Twitter 下載影片
  4. // @name:zh-CN          Twitter 下载视频
  5. // @name:ja             Twitter ビデオをダウンロード
  6. // @name:ko             Twitter 비디오 다운로드
  7. // @name:ru             Twitter Скачать видео
  8. // @version             1.0.4
  9. // @description         One button click to direct video download web page.
  10. // @description:zh-TW   即按前往下載影片的網頁。
  11. // @description:zh-CN   一键导向下载视频的网页。
  12. // @description:ja      ボタンをクリックして、ビデオのダウンロードWebページに移動します。
  13. // @description:ko      한 번의 클릭으로 비디오 다운로드 웹 사이트를 탐색하십시오.
  14. // @description:ru      Нажмите кнопку, чтобы перейти на страницу загрузки видео.
  15. // @author              Hayao-Gai
  16. // @namespace           https://github.com/HayaoGai
  17. // @icon                https://i.imgur.com/M9oO8K9.png
  18. // @include             https://twitter.com/*
  19. // @include             https://mobile.twitter.com/*
  20. // @grant               none
  21. // ==/UserScript==
  22.  
  23. /* jshint esversion: 6 */
  24.  
  25. (function() {
  26.     'use strict';
  27.  
  28.     // icons made by https://www.flaticon.com/authors/freepik
  29.     const svg = `<svg viewBox="0 0 512 512"><path d="M472,313v139c0,11.028-8.972,20-20,20H60c-11.028,0-20-8.972-20-20V313H0v139c0,33.084,26.916,60,60,60h392 c33.084,0,60-26.916,60-60V313H472z"></path></g></g><g><g><polygon points="352,235.716 276,311.716 276,0 236,0 236,311.716 160,235.716 131.716,264 256,388.284 380.284,264"></polygon></svg>`;
  30.     const resource = "https://www.savetweetvid.com/result?url=";
  31.     let currentUrl = document.location.href;
  32.     let updating = false;
  33.  
  34.     init(10);
  35.  
  36.     locationChange();
  37.  
  38.     window.addEventListener("scroll", update);
  39.  
  40.     function init(times) {
  41.         for (let i = 0; i < times; i++) {
  42.             setTimeout(findVideo1, 500 * i);
  43.             setTimeout(findVideo2, 500 * i);
  44.             setTimeout(sensitiveContent, 500 * i);
  45.         }
  46.     }
  47.  
  48.     function findVideo1() {
  49.         // video play button
  50.         document.querySelectorAll("[data-testid='playButton']").forEach(button => {
  51.             // thumbnail
  52.             button.parentElement.querySelectorAll("img:not(.download-set)").forEach(thumbnail => {
  53.                 thumbnail.classList.add("download-set");
  54.                 const url = thumbnail.src;
  55.                 // situation 1: gif
  56.                 if (url.includes("tweet_")) findMenu(thumbnail, "gif");
  57.                 // situation 2: video
  58.                 else if (url.includes("ext_tw_") || url.includes("amplify_") || url.includes("media")) findMenu(thumbnail, "video");
  59.             });
  60.         });
  61.     }
  62.  
  63.     function findVideo2() {
  64.         // video
  65.         document.querySelectorAll("video:not(.download-set)").forEach(video => {
  66.             video.classList.add("download-set");
  67.             const url = video.poster;
  68.             // situation 1: gif
  69.             if (url.includes("tweet_")) findMenu(video, "gif");
  70.             // situation 2: video
  71.             else if (url.includes("ext_tw_") || url.includes("amplify_") || url.includes("media")) findMenu(video, "video");
  72.         });
  73.     }
  74.  
  75.     function findMenu(child, type) {
  76.         const article = child.closest("article:not(.article-set)");
  77.         if (!article) return;
  78.         article.classList.add("article-set");
  79.         const menus = article.querySelectorAll("[data-testid='caret']");
  80.         menus.forEach(menu => menu.addEventListener("click", () => clickMenu(article, type)));
  81.     }
  82.  
  83.     function clickMenu(article, type) {
  84.         // check exist.
  85.         if (!!document.querySelector(".option-download-set")) return;
  86.         // wait menu.
  87.         if (!document.querySelector("[role='menuitem']")) {
  88.             setTimeout(() => clickMenu(article, type), 100);
  89.             return;
  90.         }
  91.         const menu = document.querySelector("[role='menuitem']").parentElement;
  92.         // add "download" option.
  93.         const option = document.createElement("div");
  94.         option.className = "css-1dbjc4n r-1loqt21 r-18u37iz r-1ny4l3l r-1j3t67a r-9qu9m4 r-o7ynqc r-6416eg r-13qz1uu option-download-set";
  95.         option.addEventListener("mouseenter", () => option.classList.add(getTheme(["r-1u4rsef", "r-1ysxnx4", "r-1uaug3w"])));
  96.         option.addEventListener("mouseleave", () => option.classList.remove(getTheme(["r-1u4rsef", "r-1ysxnx4", "r-1uaug3w"])));
  97.         option.addEventListener("click", () => clickDownload(article, type));
  98.         // icon
  99.         const icon = document.createElement("div");
  100.         icon.className = "css-1dbjc4n r-1777fci";
  101.         icon.innerHTML = svg;
  102.         const svgElement = icon.querySelector("svg");
  103.         svgElement.setAttribute("class", "r-4qtqp9 r-yyyyoo r-1q142lx r-1xvli5t r-zso239 r-dnmrzs r-bnwqim r-1plcrui r-lrvibr");
  104.         svgElement.classList.add(getTheme(["r-1re7ezh", "r-9ilb82", "r-111h2gw"]));
  105.         // text
  106.         const text1 = document.createElement("div");
  107.         text1.className = "css-1dbjc4n r-16y2uox r-1wbh5a2";
  108.         const text2 = document.createElement("div");
  109.         text2.className = "css-901oao r-1qd0xha r-a023e6 r-16dba41 r-ad9z0x r-bcqeeo r-qvutc0";
  110.         text2.classList.add(getTheme(["r-hkyrab", "r-1fmj7o5", "r-jwli3a"]));
  111.         const text3 = document.createElement("span");
  112.         text3.className = "css-901oao css-16my406 r-1qd0xha r-ad9z0x r-bcqeeo r-qvutc0";
  113.         text3.innerText = getLocalization();
  114.         // append
  115.         menu.appendChild(option);
  116.         option.appendChild(icon);
  117.         option.appendChild(text1);
  118.         text1.appendChild(text2);
  119.         text2.appendChild(text3);
  120.     }
  121.  
  122.     function clickDownload(article, type) {
  123.         // gif
  124.         if (type === "gif") {
  125.             let link;
  126.             // condition 1: not play yet.
  127.             article.querySelectorAll("video").forEach(video => {
  128.                 link = video.src;
  129.             });
  130.             // condition 2: playing.
  131.             if (!link) {
  132.                 const image = [...article.querySelectorAll("img")].find(image => image.src.includes("video"));
  133.                 const id = image.src.split(/[/?]/)[4];
  134.                 link = `https://video.twimg.com/tweet_video/${id}.mp4`;
  135.             }
  136.             // open
  137.             window.open(link);
  138.         }
  139.         // video
  140.         else {
  141.             const title = article.querySelector("time");
  142.             const url = !!title ? title.parentElement.href : window.location.href;
  143.             window.open(`${resource}${url}`);
  144.         }
  145.     }
  146.  
  147.     function getTheme(array) {
  148.         const body = document.querySelector("body");
  149.         const color = body.style.backgroundColor; // "rgb(21, 32, 43)"
  150.         const red = color.match(/\d+/)[0]; // "21"
  151.         switch (red) {
  152.             case "255":
  153.                 return array[0]; // white
  154.             case "0":
  155.                 return array[1]; // black
  156.             default:
  157.                 return array[2]; // gray
  158.         }
  159.     }
  160.  
  161.     function getLocalization() {
  162.         switch (document.querySelector("html").lang) {
  163.             case "zh-Hant":
  164.                 return "下載";
  165.             case "zh":
  166.                 return "下载";
  167.             case "ja":
  168.                 return "ダウンロード";
  169.             case "ko":
  170.                 return "다운로드";
  171.             case "ru":
  172.                 return "Скачать вниз";
  173.             default:
  174.                 return "Download";
  175.         }
  176.     }
  177.  
  178.     function sensitiveContent() {
  179.         // click "view" button on sensitive content warning to run this script again.
  180.         document.querySelectorAll(".r-42olwf.r-1vsu8ta:not(.view-set)").forEach(view => {
  181.             view.classList.add("view-set");
  182.             view.addEventListener("click", () => init(3));
  183.         });
  184.     }
  185.  
  186.     function update() {
  187.         if (updating) return;
  188.         updating = true;
  189.         init(3);
  190.         setTimeout(() => { updating = false; }, 1000);
  191.     }
  192.  
  193.     function locationChange() {
  194.         const observer = new MutationObserver(mutations => {
  195.             mutations.forEach(() => {
  196.                 if (currentUrl !== document.location.href) {
  197.                     currentUrl = document.location.href;
  198.                     init(10);
  199.                 }
  200.             });
  201.         });
  202.         const target = document.body;
  203.         const config = { childList: true, subtree: true };
  204.         observer.observe(target, config);
  205.     }
  206.  
  207. })();

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