extract stream file and convert to mp4
// ==UserScript==
// @name GDC Vault downloader
// @namespace http://tampermonkey.net/
// @version 0.0.5
// @description extract stream file and convert to mp4
// @author Askhento
// @match https://*gdcvault.blazestreaming.com/*
// @match https://*gdcvault.com/play/*
// @match https://*.gdcvault.com/play/*
// @icon data:image/gif;base64,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
// @grant none
// @license MIT
// ==/UserScript==
(function() {
'use strict';
//console.log("loc = " + window.self.location.href);
// check if we are inside iframe
if (window.top === window.self) {
/*
userscript should match main page and iframe with video element
some years have different player????
*/
function M3U8() {
var _this = this; // access root scope
this.ie = navigator.appVersion.toString().indexOf(".NET") > 0;
this.ios = navigator.platform && /iPad|iPhone|iPod/.test(navigator.platform);
this.start = function(m3u8, options) {
if (!options)
options = {};
var callbacks = {
progress: null,
finished: null,
error: null,
aborted: null
}
var recur; // the recursive download instance to later be initialized. Scoped here so callbakcs can access and manage it.
function handleCb(key, payload) {
if (key && callbacks[key])
callbacks[key](payload);
}
if (_this.ios)
return handleCb("error", "Downloading on IOS is not supported.");
var startObj = {
on: function(str, cb) {
switch (str) {
case "progress": {
callbacks.progress = cb;
break;
}
case "finished": {
callbacks.finished = cb;
break;
}
case "error": {
callbacks.error = cb;
break;
}
case "aborted": {
callbacks.aborted = cb;
break;
}
}
return startObj;
},
abort: function() {
;
recur && (recur.aborted = function() {
handleCb("aborted");
});
}
}
var download = new Promise(function(resolve, reject) {
var url = new URL(m3u8);
var req = fetch(m3u8)
.then(function(d) {
return d.text();
})
.then(function(d) {
const segmentReg = /^(?!#)(.+)\.(.+)$/gm;
const segments = d.match(segmentReg);
var mapped = map(segments, function(v, i) {
let temp_url = new URL(v, url) // absolute url
return temp_url.href
});
if (!mapped.length) {
reject("Invalid m3u8 playlist");
return handleCb("error", "Invalid m3u8 playlist");
}
recur = new RecurseDownload(mapped, function(data) {
var blob = new Blob(data, {
type: "octet/stream"
});
handleCb("progress", {
status: "Processing..."
});
if (!options.returnBlob) {
if (_this.ios) {
// handle ios?
} else if (_this.ie) {
handleCb("progress", {
status: "Sending video to Internet Explorer... this may take a while depending on your device's performance."
});
window.navigator.msSaveBlob(blob, (options && options.filename) || "video.mp4");
} else {
handleCb("progress", {
status: "Sending video to browser..."
});
var a = document.createElementNS("http://www.w3.org/1999/xhtml", "a");
a.href = URL.createObjectURL(blob);
a.download = (options && options.filename) || "video.mp4";
a.style.display = "none";
document.body.appendChild(a); // Firefox fix
a.click();
handleCb("finished", {
status: "Successfully downloaded video",
data: blob
});
resolve(blob);
}
} else {
handleCb("finished", {
status: "Successfully downloaded video",
data: blob
});
resolve(blob)
}
}, 0, []);
recur.onprogress = function(obj) {
handleCb("progress", obj);
}
})
.catch(function(err) {
handleCb("error", "Something went wrong when downloading m3u8 playlist: " + err);
});
});
return startObj;
}
function RecurseDownload(arr, cb, i, data) { // recursively download asynchronously 2 at the time
var _this = this;
this.aborted = false;
recurseDownload(arr, cb, i, data);
function recurseDownload(arr, cb, i, data) {
var req = Promise.all([fetch(arr[i]), arr[i + 1] ? fetch(arr[i + 1]) : Promise.resolve()]) // HTTP protocol dictates only TWO requests can be simultaneously performed
.then(function(d) {
return map(filter(d, function(v) {
return v && v.blob;
}), function(v) {
return v.blob();
});
})
.then(function(d) {
return Promise.all(d);
})
.then(function(d) {
var blobs = map(d, function(v, j) {
return new Promise(function(resolve, reject) {
var reader = new FileReader();
var read = reader.readAsArrayBuffer(new Blob([v], {
type: "octet/stream"
})); // IE can't read Blob.arrayBuffer :(
reader.addEventListener("loadend", function(event) { // event listener, my old friend we meet again... I cenrtainly haven't missed you in place of promise
resolve(reader.result);;
(_this.onprogress && _this.onprogress({
segment: i + j + 1,
total: arr.length,
percentage: Math.floor((i + j + 1) / arr.length * 100),
downloaded: formatNumber(+reduce(map(data, function(v) {
return v.byteLength;
}), function(t, c) {
return t + c;
}, 0)),
status: "Downloading..."
}));
});
});
});
Promise.all(blobs).then(function(d) {
for (var n = 0; n < d.length; n++) { // polymorphism
data.push(d[n]);
}
var increment = arr[i + 2] ? 2 : 1; // look ahead to see if we can perform 2 requests at the same time again
if (_this.aborted) {
data = null; // purge data... client side calling of garbage collector isn't possible. I know about opera and ie's garbage collectors but they're not ideal.
_this.aborted();
return; // exit promise
} else if (arr[i + increment]) {
setTimeout(function() {
recurseDownload(arr, cb, i + increment, data);
}, _this.ie ? 500 : 0);
} else {
cb(data);
}
});
})
.catch(function(err) {
;
_this.onerror && _this.onerror("Something went wrong when downloading ts file, nr. " + i + ": " + err);
});
}
}
function filter(arr, condition) {
var result = [];
for (var i = 0; i < arr.length; i++) {
if (condition(arr[i], i)) {
result.push(arr[i]);
}
}
return result;
}
function map(arr, condition) {
var result = arr.slice(0);
for (var i = 0; i < arr.length; i++) {
result[i] = condition(arr[i], i);
}
return result;
}
function reduce(arr, condition, start) {
var result = start;
arr.forEach(function(v, i) {
var res = +condition(result, v, i);
result = res;
});
return result;
}
function formatNumber(n) {
var ranges = [{
divider: 1e18,
suffix: "EB"
},
{
divider: 1e15,
suffix: "PB"
},
{
divider: 1e12,
suffix: "TB"
},
{
divider: 1e9,
suffix: "GB"
},
{
divider: 1e6,
suffix: "MB"
},
{
divider: 1e3,
suffix: "kB"
}
]
for (var i = 0; i < ranges.length; i++) {
if (n >= ranges[i].divider) {
var res = (n / ranges[i].divider).toString()
return res.toString().split(".")[0] + ranges[i].suffix;
}
}
return n.toString();
}
}
let url;
console.log("GDC Vault downloader injected!");
// Here we are at the top window and we setup our message event listener
window.addEventListener("message", async function(event) {
const text = await (await fetch(event.data.videoURL)).text();
const streamPath = text.split("\n").at(-2);
url = event.data.videoURL.replace("index.m3u8", streamPath);
}, false);
function createBtn(name)
{
const btn = document.createElement("button")
btn.innerText = name;
btn.style.zIndex = "1000"
btn.style.width = "100px";
btn.style.height = "50px";
btn.style.overflow = "visible"
btn.style.top = "20px";
btn.style.left = "20px";
btn.style.position = "absolute"
playerContainer.appendChild(btn)
return btn;
}
const videoElem = document.getElementById("my-video_html5_api");
const playerContainer = document.getElementById("container");
const downBtn = createBtn("");
let loading = false;
const m3u8 = new M3U8();
function setDown()
{
downBtn.innerText = "Download";
downBtn.onclick = () => {
console.log("start! with url : " + url);
loading = true;
const download = m3u8.start(url);
download.on("progress", progress => {
//console.log(progress); // See Classes > M3U8.events.progress
downBtn.innerText = "Loading : " + progress.percentage + "%";
}).on("finished", finished => {
downBtn.innerText = "Finished!";
console.log(finished); // See Classes > M3U8.events.finished
setResetClick();
}).on("error", message => {
downBtn.innerText = "Error";
console.error(message); // See Classes > M3U8.events.error
setResetClick();
}).on("aborted", () => {
downBtn.innerText = "Aborted";
console.log("Download aborted");
setResetClick();
});
function setResetClick()
{
downBtn.onclick = () => {
setDown();
}
}
downBtn.onclick = () => {
download.abort();
}
}
}
setDown();
}
else
{
console.log("GDC Vault downloader iframe injected!");
// Here we get inside the iframes.
// We can address and check each iframe url with document.domain
window.top.postMessage({
videoURL : PLAYBACK_URL //.replace("index", "index_2")
}, "*");
}
})();