Tampermonkey userscript: Opens TorrServer M3U playlists directly in mpv

torrserver-mpv.user.js

// ==UserScript==
// @name         TorrServer playlists to mpv
// @namespace    local.torrserver.mpv
// @version      1.2.0
// @description  Opens TorrServer M3U playlists directly in mpv
// @match        http://192.168.1.11:8090/*
// @match        http://127.0.0.1:8090/*
// @match        http://localhost:8090/*
// @run-at       document-start
// @sandbox      raw
// @grant        none
// ==/UserScript==

(() => {
  'use strict';

  const originalWindowOpen = window.open;

  function getPlaylistUrl(value) {
    if (value == null) {
      return null;
    }

    try {
      const url = new URL(String(value), window.location.href);

      const isPlaylist =
        /^\/stream\/.+\.m3u8?$/i.test(url.pathname) &&
        url.searchParams.has('link') &&
        url.searchParams.has('m3u');

      return isPlaylist ? url.href : null;
    } catch {
      return null;
    }
  }

  function openInMpv(playlistUrl) {
    const mpvUrl = `mpv://${encodeURIComponent(playlistUrl)}`;

    console.info('[TorrServer → mpv] Opening:', playlistUrl);
    window.location.assign(mpvUrl);
  }

  window.open = function (url, target, features) {
    const playlistUrl = getPlaylistUrl(url);

    if (playlistUrl) {
      openInMpv(playlistUrl);
      return null;
    }

    return Reflect.apply(originalWindowOpen, window, arguments);
  };

  document.addEventListener(
    'click',
    event => {
      if (!(event.target instanceof Element)) {
        return;
      }

      const anchor = event.target.closest('a[href]');

      if (!anchor) {
        return;
      }

      const playlistUrl = getPlaylistUrl(anchor.href);

      if (!playlistUrl) {
        return;
      }

      event.preventDefault();
      event.stopImmediatePropagation();

      openInMpv(playlistUrl);
    },
    true
  );

  console.info('[TorrServer → mpv] Userscript loaded');
})();