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jackerjay / Youtube导出Channel列表

// ==UserScript==
// @name         Youtube导出Channel列表
// @namespace    http://tampermonkey.net/
// @version      1.9
// @description  Channel
// @author       You
// @match        https://www.youtube.com/*
// @icon         data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @grant        GM_addElement
// @grant        GM_download
// @grant        GM_xmlhttpRequest
// @license MIT
// @updateURL https://openuserjs.org/meta/jackerjay/Youtube%E5%AF%BC%E5%87%BAChannel%E5%88%97%E8%A1%A8.meta.js
// ==/UserScript==

(function () {
  "use strict";
  let getChannel = (url) =>
    fetch(url)
      .then((res) => res.url)
      .then((res) => fetch(res))
      .then((res) => res.text())
      .then((res) => {
        //const channelId = res.match(/https:\/\/www.youtube.com\/channel\/([a-zA-Z\-_]+)/)?.[1];
        //if(channelId) {return channelId}
        const channelLink = res
          .match(/@id":.*?"(.+?)",/)?.[1]
          .replace(/\\\//g, "/");
        return (
          channelLink &&
          fetch(channelLink.replace("http:", "https:"))
            .then((res) => res.text())
            .then(
              (res) =>
                res.match(/"https:\/\/www.youtube.com\/channel\/(.+?)"/)?.[1]
            )
        );
      });
  const downloadCsv = (content, name) => {
    let csvContent = "data:text/csv;charset=utf-8," + content;
    var encodedUri = encodeURI(csvContent);
    var link = document.createElement("a");
    link.setAttribute("href", encodedUri);
    link.setAttribute("download", name || "my_data.csv");
    document.body.appendChild(link); // Required for FF
    link.click(); // This will download the data file named "my_data.csv".
  };

  // Your code here...
  const init = () => {
    const concur = 6;
    const container = GM_addElement(document.body, "div", {
      style:
        "background-color:#fff;position: fixed; width: 100vw; height: 100vh;z-index: 99999",
    });
    GM_addElement(container, "textarea", {
      id: "videos",
      style: "width:800px;min-height: 300px;",
      placeholder: "视频链接，每行一个",
    });
    GM_addElement(container, "button", {
      id: "export",
    });

    const btn = document.getElementById("export");
    btn.innerText = "导出channel列表";

    const handleClick = async () => {
      const ids = document
        .querySelector("#videos")
        .value.split("\n")
        .filter((id) => id && id.match(/youtube\.com\/video\/.+/));
      if (ids.some((e) => !e.match(/youtube\.com/))) {
        alert("链接不正确");
      }
      btn.innerText = "loading";
      const channelList = [];
      const id_and_channel = [];
      for (let i = 0; i < ids.length / concur; i++) {
        const partids = ids
          .slice(i * concur, (i + 1) * concur)
          .map((e) => `https://www.${e}`);
        let channels = [];
        try {
          channels = await Promise.all(partids.map(getChannel));
        } catch (err) {
          console.error(err);
          channels = await Promise.all(partids.map(getChannel));
        }
        btn.innerText = `进度：${(i + 1) * concur}/${ids.length}`;
        channelList.push(...channels.filter(Boolean));
        id_and_channel.push(
          ...partids.map((id, i) =>
            [
              id,
              channels[i],
              `https://www.youtube.com/channel/${channels[i]}`,
            ].join(",")
          )
        );
      }
      btn.innerText = "导出channel列表";
      console.log(channelList, id_and_channel);
      const stamp = Date.now();
      downloadCsv(id_and_channel.join("\n"), `链接与对应渠道_${stamp}.csv`);
      downloadCsv(
        [...new Set(channelList)]
          .map((ch) => [ch, `https://www.youtube.com/channel/${ch}`].join(","))
          .join("\n"),
        `去重渠道_${stamp}.csv`
      );
    };
    document.querySelector("#export").addEventListener("click", handleClick);
  };
  window.onload = () => {
    setTimeout(init, 2000);
  };
})();