플리 딸깍

wakmu_playlist.js

(() => {
  async function sha1(content) {
    const buf = await window.crypto.subtle.digest(
      "SHA-1",
      new TextEncoder("utf-8").encode(content)
    );

    return Array.prototype.map
      .call(new Uint8Array(buf), (x) => ("00" + x.toString(16)).slice(-2))
      .join("");
  }

  async function makeHash() {
    const now = new Date();
    const origin = "https://www.youtube.com";
    const timems = now.getTime() + now.getTimezoneOffset() * 60 * 1000;
    const timesec = Math.round(timems / 1000);
    const SAPISID = document.cookie.split("SAPISID=")[1].split("; ")[0];
    const shaed = await sha1(
      timesec + " " + SAPISID + " " + origin,
      "utf8",
      "hex"
    );

    return timesec + "_" + shaed;
  }

  async function createPlaylist(title, videoIds) {
    console.log(title, videoIds);

    const res = await fetch(
      "https://www.youtube.com/youtubei/v1/playlist/create?key=AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8&prettyPrint=false",
      {
        method: "POST",
        headers: {
          authorization: "SAPISIDHASH " + (await makeHash()),
          "x-goog-authuser": ytcfg.data_.SESSION_INDEX,
          "x-goog-pageid": ytcfg.data_.DELEGATED_SESSION_ID,
        },
        body: JSON.stringify({
          context: {
            client: {
              clientName: "WEB",
              clientVersion: "2.20200720.00.02",
            },
          },
          title,
          videoIds,
        }),
      }
    );

    const data = await res.json();

    return data.playlistId;
  }

  async function main() {
    const rawVideos = prompt("시트에서 노래 목록을 복사해오세요.");
    const videos = rawVideos.replace(/\r/g, "").split("\n");
    const videoIds = videos.map((video) => video.split("/")[3]);

    let name = prompt(
      `${videoIds.length}곡이 담길 유튜브 플레이리스트 이름을 입력하세요.`
    );

    if (name === null) {
      alert("취소되었습니다.");
    }

    const ytPlaylistId = await createPlaylist(name, videoIds);

    location.href = `https://www.youtube.com/playlist?list=${ytPlaylistId}`;
  }

  main();
})();

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