Youtube: Show related videos if missing

On pages of age-restricted videos, related videos are missing. This script re-adds the related videos.

Você precisará instalar uma extensão como Tampermonkey, Greasemonkey ou Violentmonkey para instalar este script.

You will need to install an extension such as Tampermonkey to install this script.

Você precisará instalar uma extensão como Tampermonkey ou Violentmonkey para instalar este script.

Você precisará instalar uma extensão como Tampermonkey ou Userscripts para instalar este script.

Você precisará instalar uma extensão como o Tampermonkey para instalar este script.

Você precisará instalar um gerenciador de scripts de usuário para instalar este script.

(Eu já tenho um gerenciador de scripts de usuário, me deixe instalá-lo!)

Você precisará instalar uma extensão como o Stylus para instalar este estilo.

Você precisará instalar uma extensão como o Stylus para instalar este estilo.

Você precisará instalar uma extensão como o Stylus para instalar este estilo.

Você precisará instalar um gerenciador de estilos de usuário para instalar este estilo.

Você precisará instalar um gerenciador de estilos de usuário para instalar este estilo.

Você precisará instalar um gerenciador de estilos de usuário para instalar este estilo.

(Eu já possuo um gerenciador de estilos de usuário, me deixar fazer a instalação!)

// ==UserScript==
// @name           Youtube: Show related videos if missing
// @name:de        Youtube: Zeige Videovorschläge an, falls sie fehlen
// @namespace      tfr
// @description    On pages of age-restricted videos, related videos are missing. This script re-adds the related videos.
// @description:de Auf Seiten altersbeschränkter Videos fehlen die Videovorschläge. Dieses Skript fügt sie wieder hinzu.
// @author         tfr (https://github.com/t-fr/)
// @license        CC0; https://creativecommons.org/publicdomain/zero/1.0/
// @license        MIT license; https://pastebin.com/raw.php?i=4TMeeUXC
// @compatible     firefox Works with Firefox and Greasemonkey
// @incompatible   chrome Does not work with Chrome and Tampermonkey
// @compatible     opera Works with Opera and Violent monkey, but not with Tampermonkey Beta
// @oujs:author    tfr
// @include        http://www.youtube.com/watch?*
// @include        https://www.youtube.com/watch?*
// @version        4
// @grant          GM_xmlhttpRequest
// ==/UserScript==

/* This script is dual-licensed under CC0 and the MIT license.
 * You can choose which one you want to use.
 * CC0 license: http://creativecommons.org/publicdomain/zero/1.0/deed.en
 * MIT license: https://pastebin.com/raw.php?i=4TMeeUXC
 *
 * Dieses Skript steht sowohl unter CC0 als auch unter der MIT-Lizenz.
 * Sie können sich aussuchen, welche Lizenz Sie nutzen.
 * CC0-Lizenz: http://creativecommons.org/publicdomain/zero/1.0/deed.de
 * MIT-Lizenz: https://pastebin.com/raw.php?i=4TMeeUXC
 */

/* Version 4: Do not write "by ..." in video title
 * Version 3: Update license information
 */

if (window.document.getElementById('watch7-sidebar-modules') && !window.document.getElementById('watch-related'))
{
  var videoid = window.location.search.substr(window.location.search.indexOf('v=') + 2);
  if (videoid.indexOf('&') > - 1)
  {
    videoid = videoid.substr(0, videoid.indexOf('&'));
  }
  videoid = decodeURIComponent(videoid);
  GM_xmlhttpRequest({
    method: 'GET',
    url: '//www.youtube.com/get_video_info?asv=3&video_id=' + videoid,
    onload: function (response)
    {
      if (response.status == 200)
      {
        var relatedList = response.responseText.substr(response.responseText.indexOf('rvs=') + 4);
        if (relatedList.indexOf('&') > - 1)
        {
          relatedList = relatedList.substr(0, relatedList.indexOf('&'));
        }
        relatedList = decodeURIComponent(relatedList);
        relatedListS = relatedList.split(',');
        var sidebarModules = window.document.getElementById('watch7-sidebar-modules');
        var sidebarSection = window.document.createElement('div');
        sidebarSection.setAttribute('class', 'watch-sidebar-section');
        sidebarModules.appendChild(sidebarSection);
        var sidebarBody = window.document.createElement('div');
        sidebarBody.setAttribute('class', 'watch-sidebar-body');
        sidebarSection.appendChild(sidebarBody);
        var relatedVideoList = window.document.createElement('ul');
        relatedVideoList.setAttribute('id', 'watch-related');
        relatedVideoList.setAttribute('class', 'video-list');
        sidebarBody.appendChild(relatedVideoList);
        for (var i = 0; i < relatedListS.length; i++)
        {
          if (relatedListS[i].indexOf('id=') > - 1 && relatedListS[i].indexOf('title=') > - 1 && relatedListS[i].indexOf('author=') > - 1 && relatedListS[i].indexOf('length_seconds=') > - 1)
          {
            var relatedId = relatedListS[i].substr(relatedListS[i].indexOf('id=') + 3);
            if (relatedId.indexOf('&') > - 1)
            {
              relatedId = relatedId.substr(0, relatedId.indexOf('&'));
            }
            relatedId = relatedId.replace(/\+/g, ' ');
            relatedId = decodeURIComponent(relatedId);
            var relatedTitle = relatedListS[i].substr(relatedListS[i].indexOf('title=') + 6);
            if (relatedTitle.indexOf('&') > - 1)
            {
              relatedTitle = relatedTitle.substr(0, relatedTitle.indexOf('&'));
            }
            relatedTitle = relatedTitle.replace(/\+/g, ' ');
            relatedTitle = decodeURIComponent(relatedTitle);
            var relatedAuthor = relatedListS[i].substr(relatedListS[i].indexOf('author=') + 7);
            if (relatedAuthor.indexOf('&') > - 1)
            {
              relatedAuthor = relatedAuthor.substr(0, relatedAuthor.indexOf('&'));
            }
            relatedAuthor = relatedAuthor.replace(/\+/g, ' ');
            relatedAuthor = decodeURIComponent(relatedAuthor);
            var relatedLength = relatedListS[i].substr(relatedListS[i].indexOf('length_seconds=') + 15);
            if (relatedLength.indexOf('&') > - 1)
            {
              relatedLength = relatedLength.substr(0, relatedLength.indexOf('&'));
            }
            relatedLength = relatedLength.replace(/\+/g, ' ');
            relatedLength = decodeURIComponent(relatedLength);
            var relatedLengthRest = parseInt(relatedLength);
            var relatedLengthStr = ':' + ((relatedLengthRest % 60) < 10 ? '0' : '') + (relatedLengthRest % 60).toString();
            relatedLengthRest = Math.floor(relatedLengthRest / 60);
            relatedLengthStr = (relatedLengthRest >= 60 && (relatedLengthRest % 60) < 10 ? '0' : '') + (relatedLengthRest % 60).toString() + relatedLengthStr;
            relatedLengthRest = Math.floor(relatedLengthRest / 60);
            relatedLengthStr = (relatedLengthRest > 0 ? relatedLengthRest.toString() + ':' + relatedLengthStr : relatedLengthStr);
            var listElem = window.document.createElement('li');
            listElem.setAttribute('class', 'video-list-item related-list-item show-video-time related-list-item-compact-video');
            relatedVideoList.appendChild(listElem);
            var listElemCont = window.document.createElement('div');
            listElemCont.setAttribute('class', 'content-wrapper');
            listElem.appendChild(listElemCont);
            var listElemContLink = window.document.createElement('a');
            listElemContLink.setAttribute('class', 'yt-uix-sessionlink content-link');
            listElemContLink.setAttribute('title', relatedTitle);
            listElemContLink.setAttribute('href', 'https://www.youtube.com/watch?v=' + relatedId);
            listElemCont.appendChild(listElemContLink);
            var listElemContLinkSpan1 = window.document.createElement('span');
            listElemContLinkSpan1.setAttribute('class', 'title');
            listElemContLinkSpan1.setAttribute('aria-describedby', 'description-id-' + i);
            listElemContLinkSpan1.appendChild(window.document.createTextNode(relatedTitle));
            listElemContLink.appendChild(listElemContLinkSpan1);
            var listElemContLinkSpan2 = window.document.createElement('span');
            listElemContLinkSpan2.setAttribute('id', 'description-id-' + i);
            listElemContLinkSpan2.setAttribute('class', 'accessible-description');
            listElemContLinkSpan2.appendChild(window.document.createTextNode((navigator.language.toLowerCase().substr(0, 2) == 'de' ? '- Dauer: ' : '- Duration: ') + relatedLengthStr));
            listElemContLink.appendChild(listElemContLinkSpan2);
            var listElemContLinkSpan3 = window.document.createElement('span');
            listElemContLinkSpan3.setAttribute('class', 'stat attribution');
            listElemContLinkSpan3.appendChild(window.document.createTextNode((navigator.language.toLowerCase().substr(0, 2) == 'de' ? 'von ' : 'by ') + relatedAuthor));
            listElemContLink.appendChild(listElemContLinkSpan3);
            var listElemThum = window.document.createElement('div');
            listElemThum.setAttribute('class', 'thumb-wrapper');
            listElem.appendChild(listElemThum);
            var listElemThumLink = window.document.createElement('a');
            listElemThumLink.setAttribute('class', 'yt-uix-sessionlink thumb-link');
            listElemThumLink.setAttribute('aria-hidden', 'true');
            listElemThumLink.setAttribute('tabindex', '-1');
            listElemThumLink.setAttribute('href', 'https://www.youtube.com/watch?v=' + relatedId);
            listElemThum.appendChild(listElemThumLink);
            var listElemThumLinkSpan = window.document.createElement('span');
            listElemThumLinkSpan.setAttribute('class', 'yt-uix-simple-thumb-wrap yt-uix-simple-thumb-related');
            listElemThumLinkSpan.setAttribute('data-vid', relatedId);
            listElemThumLinkSpan.setAttribute('tabindex', '0');
            listElemThumLink.appendChild(listElemThumLinkSpan);
            var listElemThumImg = window.document.createElement('img');
            listElemThumImg.setAttribute('width', '120');
            listElemThumImg.setAttribute('height', '90');
            listElemThumImg.setAttribute('aria-hidden', 'true');
            listElemThumImg.setAttribute('alt', '');
            listElemThumImg.setAttribute('src', '//i.ytimg.com/vi/' + relatedId + '/default.jpg');
            listElemThumLinkSpan.appendChild(listElemThumImg);
          }
        }
      }
    }
  });
}