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NRK subtitle download

Download subtitles from tv.nrk.no

  1. // ==UserScript==
  2. // @name         NRK subtitle download
  3. // @namespace    http://tampermonkey.net/
  4. // @version      0.1
  5. // @description  Download subtitles from tv.nrk.no
  6. // @author       cvzi
  7. // @copyright    2021, cuzi (https://openuserjs.org/users/cuzi)
  8. // @license      MIT
  9. // @match        https://tv.nrk.no/*
  10. // @icon         https://tv.nrk.no/apple-touch-icon.png
  11. // @grant        GM.xmlHttpRequest
  12. // @grant        GM.registerMenuCommand
  13. // ==/UserScript==
  14.  
  15. /* globals GM */
  16.  
  17. (function () {
  18.   'use strict'
  19.   const PROGRAM_URL = 'https://psapi.nrk.no/programs/$pid'
  20.  
  21.   function container () {
  22.     let div = document.getElementById('videosrcs84519')
  23.     if (!div) {
  24.       div = document.createElement('div')
  25.       div.id = 'videosrcs84519'
  26.       document.body.appendChild(div)
  27.       document.head.appendChild(document.createElement('style')).innerHTML = `
  28.         #videosrcs84519 {
  29.           position:fixed;
  30.           z-index:99999;
  31.           top:0px;
  32.           left:0px;
  33.           padding:5px;
  34.           margin:0px;
  35.           background:white;
  36.           color:black;
  37.           border:2px solid black;
  38.           font-family:monospace;
  39.           font-size:14px;
  40.         }
  41.  
  42.         #videosrcs84519 a:link {color:blue; text-decoration:underline;font-size:14px;font-family:monospace;}
  43.         #videosrcs84519 a:visited {color:#660973; text-decoration:underline;font-size:14px;font-family:monospace;}
  44. `
  45.     }
  46.     div.innerHTML = ''
  47.     return div
  48.   }
  49.   function link (url) {
  50.     const a = document.createElement('a')
  51.     a.href = url
  52.     a.target = '_blank'
  53.     let text = url.toString()
  54.     a.title = text
  55.     if (text.length > 160) {
  56.       text = text.substring(0, 78) + '...' + text.substring(text.length - 78)
  57.     }
  58.     a.appendChild(document.createTextNode(text))
  59.     return a
  60.   }
  61.  
  62.   const lst = new Set()
  63.   const m3u8s = new Set()
  64.   function m3u8 (url) {
  65.     if (!url.endsWith('m3u8') || m3u8s.has(url)) {
  66.       return
  67.     }
  68.     m3u8s.add(url)
  69.     GM.xmlHttpRequest({
  70.       method: 'GET',
  71.       url: url,
  72.       onload: function (response) {
  73.         response.responseText.split('\n').forEach(function (line) {
  74.           if (line.trim().startsWith('#')) {
  75.             return
  76.           }
  77.           if (line.startsWith('http')) {
  78.             lst.add(line)
  79.           } else {
  80.             const parts = url.split('/')
  81.             parts.pop()
  82.             parts.push(line)
  83.             lst.add(parts.join('/'))
  84.           }
  85.         })
  86.         listUrls()
  87.       }
  88.     })
  89.   }
  90.  
  91.   function findProgramId () {
  92.     if (document.querySelector('meta[property="nrk:program-id"]')) {
  93.       return document.querySelector('meta[property="nrk:program-id"]').content
  94.     } else if (document.querySelector('[data-program-id]')) {
  95.       return document.querySelector('[data-program-id]').dataset.programId
  96.     } else {
  97.       let m = document.documentElement.innerHTML.match(/"prfId":"(\w+?)"/)
  98.       if (m) {
  99.         return m[1]
  100.       } else {
  101.         m = document.documentElement.innerHTML.match(/prf:(\w+?)/)
  102.         if (m) {
  103.           return m[1]
  104.         }
  105.       }
  106.     }
  107.     return null
  108.   }
  109.  
  110.   let iv = null
  111.   function listUrls () {
  112.     const programId = findProgramId()
  113.     if (programId) {
  114.       GM.xmlHttpRequest({
  115.         method: 'GET',
  116.         url: PROGRAM_URL.replace('$pid', programId),
  117.         onload: function (response) {
  118.           const data = JSON.parse(response.responseText)
  119.           data.mediaAssetsOnDemand.forEach(function (episode) {
  120.             lst.add(decodeURIComponent(episode.webVttSubtitles))
  121.             m3u8(decodeURIComponent(episode.webVttSubtitles))
  122.             lst.add(decodeURIComponent(episode.timedTextSubtitlesUrl))
  123.             m3u8(decodeURIComponent(episode.timedTextSubtitlesUrl))
  124.  
  125.             const c = container()
  126.             lst.forEach(function (src) {
  127.               c.appendChild(link(src))
  128.               c.appendChild(document.createElement('br'))
  129.             })
  130.             let button = c.appendChild(document.createElement('button'))
  131.             button.addEventListener('click', function () {
  132.               window.clearInterval(iv)
  133.               c.remove()
  134.             })
  135.             button.appendChild(document.createTextNode('Close'))
  136.             button = c.appendChild(document.createElement('button'))
  137.             button.addEventListener('click', () => listUrls())
  138.             button.appendChild(document.createTextNode('Refresh'))
  139.           })
  140.         }
  141.       })
  142.     }
  143.   }
  144.  
  145.   GM.registerMenuCommand('List NRK subtitles', listUrls)
  146.   iv = window.setInterval(listUrls, 5000)
  147. })()