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Allows you to download subtitles from Amazon Video
As of
// ==UserScript==
// @name Amazon Video - subtitle downloader
// @description Allows you to download subtitles from Amazon Video
// @license MIT
// @version 1.8.4
// @namespace tithen-firion.github.io
// @include /^https:\/\/(www|smile)\.amazon\.com\/(gp\/(video|product)|(.*?\/)?dp)\/.+/
// @include /^https:\/\/(www|smile)\.amazon\.de\/(gp\/(video|product)|(.*?\/)?dp)\/.+/
// @include /^https:\/\/(www|smile)\.amazon\.co\.uk\/(gp\/(video|product)|(.*?\/)?dp)\/.+/
// @include /^https:\/\/(www|smile)\.amazon\.co\.jp\/(gp\/(video|product)|(.*?\/)?dp)\/.+/
// @include /^https:\/\/www\.primevideo\.com\/(gp\/video|(region\/.*?\/)?detail)/.+/
// @grant unsafeWindow
// @grant GM.xmlHttpRequest
// @grant GM_xmlhttpRequest
// @require https://greasemonkey.github.io/gm4-polyfill/gm4-polyfill.js
// @require https://cdn.jsdelivr.net/gh/Tithen-Firion/UserScripts@7bd6406c0d264d60428cfea16248ecfb4753e5e3/libraries/xhrHijacker.js?version=1.0
// @require https://cdn.jsdelivr.net/gh/Stuk/jszip@579beb1d45c8d586d8be4411d5b2e48dea018c06/dist/jszip.min.js?version=3.1.5
// @require https://cdn.jsdelivr.net/gh/eligrey/FileSaver.js@283f438c31776b622670be002caf1986c40ce90c/dist/FileSaver.min.js?version=2018-12-29
// ==/UserScript==
class ProgressBar {
constructor() {
let container = document.querySelector('#userscript_progress_bars');
if(container === null) {
container = document.createElement('div');
container.id = 'userscript_progress_bars'
document.body.appendChild(container)
container.style
container.style.position = 'fixed';
container.style.top = 0;
container.style.left = 0;
container.style.width = '100%';
container.style.background = 'red';
container.style.zIndex = '99999999';
}
self.container = container;
}
init() {
this.current = 0;
this.max = 0;
this.progressElement = document.createElement('div');
this.progressElement.style.width = 0;
this.progressElement.style.height = '10px';
this.progressElement.style.background = 'green';
self.container.appendChild(this.progressElement);
}
increment() {
this.current += 1;
if(this.current <= this.max)
this.progressElement.style.width = this.current / this.max * 100 + '%';
}
incrementMax() {
this.max += 1;
if(this.current <= this.max)
this.progressElement.style.width = this.current / this.max * 100 + '%';
}
destroy() {
this.progressElement.remove();
}
}
var progressBar = new ProgressBar();
// add CSS style
var s = document.createElement('style');
s.innerHTML = 'p.download:hover { cursor:pointer }';
document.head.appendChild(s);
// XML to SRT
function xmlToSrt(xmlString, lang) {
xmlString = xmlString.replace(/[ \t]*<tt:br\/>[ \t]*/gi, '\n');
try {
let parser = new DOMParser();
var xmlDoc = parser.parseFromString(xmlString, 'text/xml');
}
catch(e) {
console.error(e);
alert('Failed to parse XML subtitle file');
return null;
}
var lines = xmlDoc.querySelectorAll('body p');
var srtLines = [];
for(let i=0, l=lines.length; i < l; ++i) {
let text = lines[i].value.trim();
if(text != '') {
if(lang.indexOf('ar') == 0)
text = text.replace(/^(?!\u202B|\u200F)/gm, '\u202B');
srtLines.push(i+1);
srtLines.push(lines[i].getAttribute('begin').replace('.',',') + ' --> ' + lines[i].getAttribute('end').replace('.',','));
srtLines.push(text);
srtLines.push('');
}
}
return srtLines.join('\n');
}
// download subs and save them
function downloadSubs(url, title, downloadVars, lang) {
GM.xmlHttpRequest({
url: url,
method: 'get',
onload: function(resp) {
progressBar.increment();
var srt = xmlToSrt(resp.responseText, lang);
if(downloadVars) {
downloadVars.zip.file(title, srt);
--downloadVars.subCounter;
if((downloadVars.subCounter|downloadVars.infoCounter) === 0)
downloadVars.zip.generateAsync({type:"blob"})
.then(function(content) {
saveAs(content, 'subs.zip');
progressBar.destroy();
});
}
else {
var blob = new Blob([srt], {type: 'text/plain;charset=utf-8'});
saveAs(blob, title, true);
progressBar.destroy();
}
}
});
}
// download episodes/movie info and start downloading subs
function downloadInfo(url, downloadVars) {
var req = new XMLHttpRequest();
req.open('get', url);
req.withCredentials = true;
req.onload = function() {
var info = JSON.parse(req.response);
try {
var epInfo = info.catalogMetadata.catalog;
var ep = epInfo.episodeNumber;
var title, season;
if(epInfo.type == 'MOVIE' || ep === 0)
title = epInfo.title;
else {
info.catalogMetadata.family.tvAncestors.forEach(function(tvAncestor) {
switch(tvAncestor.catalog.type) {
case 'SEASON':
season = tvAncestor.catalog.seasonNumber;
break;
case 'SHOW':
title = tvAncestor.catalog.title;
break;
}
});
title += '.S' + season.toString().padStart(2, '0') + '.E' + ep.toString().padStart(2, '0');
}
title = title.replace(/[:*?"<>|\\\/]+/g, '_').replace(/ /g, '.');
title += '.WEBRip.Amazon.';
var languages = new Set();
var forced = info.forcedNarratives || [];
forced.forEach(function(forcedInfo) {
forcedInfo.languageCode += '-forced';
});
var subs = (info.subtitleUrls || []).concat(forced);
if(subs.length > 1 && !downloadVars) {
downloadVars = {
subCounter: 0,
infoCounter: 1,
zip: new JSZip()
};
}
subs.forEach(function(subInfo) {
let lang = subInfo.languageCode;
if(languages.has(lang))
lang += '.' + subInfo.index;
else
languages.add(lang);
if(downloadVars)
++downloadVars.subCounter;
progressBar.incrementMax();
downloadSubs(subInfo.url, title + lang + '.srt', downloadVars, lang);
});
}
catch(e) {
console.log(info);
alert(e);
}
if(downloadVars)
--downloadVars.infoCounter;
};
req.send(null);
}
function downloadThis(e) {
progressBar.init();
var id = e.target.getAttribute('data-id');
downloadInfo(gUrl + id);
}
function downloadAll(e) {
progressBar.init();
var IDs = e.target.getAttribute('data-id').split(';');
var downloadVars = {
subCounter: 0,
infoCounter: IDs.length,
zip: new JSZip()
};
IDs.forEach(function(id) {
downloadInfo(gUrl + id, downloadVars);
});
}
// remove unnecessary parameters from URL
function parseURL(url) {
var filter = ['consumptionType', 'deviceID', 'deviceTypeID', 'firmware', 'gascEnabled', 'marketplaceID', 'userWatchSessionId', 'videoMaterialType', 'clientId', 'operatingSystemName', 'operatingSystemVersion', 'customerID', 'token'];
var urlParts = url.split('?');
var params = ['desiredResources=CatalogMetadata%2CSubtitleUrls%2CForcedNarratives'];
urlParts[1].split('&').forEach(function(param) {
var p = param.split('=');
if(filter.indexOf(p[0]) > -1)
params.push(param);
});
params.push('resourceUsage=CacheResources');
params.push('titleDecorationScheme=primary-content');
params.push('asin=');
urlParts[1] = params.join('&');
return urlParts.join('?');
}
function createDownloadButton(id, type) {
var p = document.createElement('p');
p.classList.add('download');
p.setAttribute('data-id', id);
p.innerHTML = 'Download subs for this ' + type;
p.addEventListener('click', (type == 'season' ? downloadAll : downloadThis));
return p;
}
function findMovieID() {
for(const templateElement of document.querySelectorAll('script[type="text/template"]')) {
let data;
try {
data = JSON.parse(templateElement.innerHTML);
}
catch(ignore) {
continue;
}
if(typeof data.initArgs !== 'undefined' && typeof data.initArgs.titleID !== 'undefined')
return data.initArgs.titleID;
}
throw Error("Couldn't find movie ID");
}
function allLoaded(resolve, epCount) {
if(epCount !== document.querySelectorAll('.js-node-episode-container').length)
resolve();
else
window.setTimeout(allLoaded, 200, resolve, epCount);
}
function showAll() {
return new Promise(resolve => {
let btn = document.querySelector('[data-automation-id="ep-expander"]');
if(btn === null)
resolve();
let epCount = document.querySelectorAll('.js-node-episode-container').length;
btn.click();
allLoaded(resolve, epCount);
});
}
// add download buttons
async function init(url) {
initialied = true;
gUrl = parseURL(url);
console.log(gUrl);
await showAll();
let button;
let epElems = document.querySelectorAll('.dv-episode-container, .avu-context-card, .js-node-episode-container');
if(epElems.length > 0) {
let IDs = [];
for(let i=epElems.length; i--; ) {
let selector, id, el;
if((el = epElems[i].querySelector('input[name="highlight-list-selector"]')) !== null) {
id = el.id.replace('selector-', '');
selector = '.js-episode-offers';
}
else if((el = epElems[i].querySelector('input[name="ep-list-selector"]')) !== null) {
id = el.value;
selector = '.av-episode-meta-info';
}
else if(id = epElems[i].getAttribute('data-aliases'))
selector = '.dv-el-title';
else
continue;
id = id.split(',')[0];
epElems[i].querySelector(selector).parentNode.appendChild(createDownloadButton(id, 'episode'));
IDs.push(id);
}
button = createDownloadButton(IDs.join(';'), 'season');
}
else {
let id = findMovieID();
id = id.split(',')[0];
button = createDownloadButton(id, 'movie');
}
document.querySelector('.dv-node-dp-badges, .av-badges').appendChild(button);
}
var initialied = false, gUrl;
// hijack xhr, we need to find out tokens and other parameters needed for subtitle info
xhrHijacker(function(xhr, id, origin, args) {
if(!initialied && origin === 'open')
if(args[1].indexOf('/GetPlaybackResources') > -1) {
init(args[1])
.catch(error => {
console.log(error);
alert(`subtitle downloader error: ${error.message}`);
});
}
});