NRK subtitle download

Download subtitles from tv.nrk.no

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

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

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

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

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

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         NRK subtitle download
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Download subtitles from tv.nrk.no
// @author       cvzi
// @copyright    2021, cuzi (https://openuserjs.org/users/cuzi)
// @license      MIT
// @match        https://tv.nrk.no/*
// @icon         https://tv.nrk.no/apple-touch-icon.png
// @grant        GM.xmlHttpRequest
// @grant        GM.registerMenuCommand
// ==/UserScript==

/* globals GM */

(function () {
  'use strict'
  const PROGRAM_URL = 'https://psapi.nrk.no/programs/$pid'

  function container () {
    let div = document.getElementById('videosrcs84519')
    if (!div) {
      div = document.createElement('div')
      div.id = 'videosrcs84519'
      document.body.appendChild(div)
      document.head.appendChild(document.createElement('style')).innerHTML = `
        #videosrcs84519 {
          position:fixed;
          z-index:99999;
          top:0px;
          left:0px;
          padding:5px;
          margin:0px;
          background:white;
          color:black;
          border:2px solid black;
          font-family:monospace;
          font-size:14px;
        }

        #videosrcs84519 a:link {color:blue; text-decoration:underline;font-size:14px;font-family:monospace;}
        #videosrcs84519 a:visited {color:#660973; text-decoration:underline;font-size:14px;font-family:monospace;}
`
    }
    div.innerHTML = ''
    return div
  }
  function link (url) {
    const a = document.createElement('a')
    a.href = url
    a.target = '_blank'
    let text = url.toString()
    a.title = text
    if (text.length > 160) {
      text = text.substring(0, 78) + '...' + text.substring(text.length - 78)
    }
    a.appendChild(document.createTextNode(text))
    return a
  }

  const lst = new Set()
  const m3u8s = new Set()
  function m3u8 (url) {
    if (!url.endsWith('m3u8') || m3u8s.has(url)) {
      return
    }
    m3u8s.add(url)
    GM.xmlHttpRequest({
      method: 'GET',
      url: url,
      onload: function (response) {
        response.responseText.split('\n').forEach(function (line) {
          if (line.trim().startsWith('#')) {
            return
          }
          if (line.startsWith('http')) {
            lst.add(line)
          } else {
            const parts = url.split('/')
            parts.pop()
            parts.push(line)
            lst.add(parts.join('/'))
          }
        })
        listUrls()
      }
    })
  }

  function findProgramId () {
    if (document.querySelector('meta[property="nrk:program-id"]')) {
      return document.querySelector('meta[property="nrk:program-id"]').content
    } else if (document.querySelector('[data-program-id]')) {
      return document.querySelector('[data-program-id]').dataset.programId
    } else {
      let m = document.documentElement.innerHTML.match(/"prfId":"(\w+?)"/)
      if (m) {
        return m[1]
      } else {
        m = document.documentElement.innerHTML.match(/prf:(\w+?)/)
        if (m) {
          return m[1]
        }
      }
    }
    return null
  }

  let iv = null
  function listUrls () {
    const programId = findProgramId()
    if (programId) {
      GM.xmlHttpRequest({
        method: 'GET',
        url: PROGRAM_URL.replace('$pid', programId),
        onload: function (response) {
          const data = JSON.parse(response.responseText)
          data.mediaAssetsOnDemand.forEach(function (episode) {
            lst.add(decodeURIComponent(episode.webVttSubtitles))
            m3u8(decodeURIComponent(episode.webVttSubtitles))
            lst.add(decodeURIComponent(episode.timedTextSubtitlesUrl))
            m3u8(decodeURIComponent(episode.timedTextSubtitlesUrl))

            const c = container()
            lst.forEach(function (src) {
              c.appendChild(link(src))
              c.appendChild(document.createElement('br'))
            })
            let button = c.appendChild(document.createElement('button'))
            button.addEventListener('click', function () {
              window.clearInterval(iv)
              c.remove()
            })
            button.appendChild(document.createTextNode('Close'))
            button = c.appendChild(document.createElement('button'))
            button.addEventListener('click', () => listUrls())
            button.appendChild(document.createTextNode('Refresh'))
          })
        }
      })
    }
  }

  GM.registerMenuCommand('List NRK subtitles', listUrls)
  iv = window.setInterval(listUrls, 5000)
})()