Allows you to download subtitles from Amazon Video
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// ==UserScript==
// @name Amazon Video - subtitle downloader
// @description Allows you to download subtitles from Amazon Video
// @license MIT
// @version 1.4.2
// @namespace tithen-firion.github.io
// @include /^https:\/\/www\.amazon\.(com|de|co\.uk)\/(gp\/(video|product)|(.*?\/)?dp)\/.+/
// @include /^https:\/\/www\.primevideo\.com\/(gp\/video|(region\/.*?\/)?detail)/.+/
// @grant unsafeWindow
// @require https://cdn.rawgit.com/Tithen-Firion/UserScripts/7bd6406c0d264d60428cfea16248ecfb4753e5e3/libraries/xhrHijacker.js?version=1.0
// @require https://cdn.rawgit.com/Stuk/jszip/28d10c924285063b17b73b7db1572e1375f4b924/dist/jszip.min.js?version=3.1.4
// @require https://cdn.rawgit.com/eligrey/FileSaver.js/5ed507ef8aa53d8ecfea96d96bc7214cd2476fd2/FileSaver.min.js?version=1.3.3
// ==/UserScript==
// 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) {
xmlString = xmlString.replace(/<tt:br\/>/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].innerHTML.trim();
if(text != '') {
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) {
var req = new XMLHttpRequest();
req.open('get', url);
req.onload = function() {
var srt = xmlToSrt(req.response);
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');
});
}
else {
var blob = new Blob([srt], {type: 'text/plain;charset=utf-8'});
saveAs(blob, title, true);
}
};
req.send(null);
}
// 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);
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 subs = info.subtitleUrls;
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;
downloadSubs(subInfo.url, title + lang + '.srt', downloadVars);
});
if(downloadVars)
--downloadVars.infoCounter;
};
req.send(null);
}
function downloadThis(e) {
var id = e.target.getAttribute('data-id');
downloadInfo(gUrl + id);
}
function downloadAll(e) {
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', 'resourceUsage', 'userWatchSessionId', 'videoMaterialType', 'clientId', 'operatingSystemName', 'operatingSystemVersion', 'titleDecorationScheme', 'customerID', 'token'];
var urlParts = url.split('?');
var params = ['desiredResources=CatalogMetadata%2CSubtitleUrls'];
urlParts[1].split('&').forEach(function(param) {
var p = param.split('=');
if(filter.indexOf(p[0]) > -1)
params.push(param);
});
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;
}
// add download buttons
function init(url) {
initialied = true;
gUrl = parseURL(url);
console.log(gUrl);
var epList = document.querySelector('#dv-episode-list, .av-episode-list');
if(epList) {
let IDs = [];
let epElems = epList.querySelectorAll('.dv-episode-container');
if(epElems.length === 0)
epElems = epList.querySelectorAll('.avu-context-card');
for(let i=epElems.length; i--; ) {
let id = epElems[i].getAttribute('data-aliases');
let selector;
if(id)
selector = '.dv-el-title';
else {
id = epElems[i].querySelector('input[name="ep-list-selector"]').value;
selector = '.av-episode-meta-info';
}
epElems[i].querySelector(selector).parentNode.appendChild(createDownloadButton(id, 'episode'));
IDs.push(id);
}
epList.previousElementSibling.appendChild(createDownloadButton(IDs.join(';'), 'season'));
}
else {
let pathNames = window.location.pathname.split('/');
let id;
if(document.location.host.indexOf('primevideo') > -1)
id = document.querySelector('input[name="itemId"]').value;
else
id = unsafeWindow.ue_pti;
document.querySelector('#dv-main-bottom-section, .av-badges').appendChild(createDownloadButton(id, 'movie'));
}
}
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 && args[1].indexOf('token=') > -1)
init(args[1])
});