Add dyn-skip-min

This commit is contained in:
pixeltris 2020-12-25 21:55:30 +00:00
parent 94c8106fc9
commit d9c191a606
3 changed files with 407 additions and 0 deletions

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@ -7,6 +7,8 @@ This repo aims to provide multiple solutions for blocking Twitch ads.
- dyn-skip - dyn-skip
- When ads play this instantly notifies Twitch that ads were watched. It then refreshes the stream (either full reload, or using FZZ extension). - When ads play this instantly notifies Twitch that ads were watched. It then refreshes the stream (either full reload, or using FZZ extension).
- May potentially result in multiple refreshes if ads are being served aggressively. - May potentially result in multiple refreshes if ads are being served aggressively.
- dyn-skip-min
- dyn-skip variant which doesn't require a reload (WIP/experimental)
- dyn - dyn
- Ad segments are replaced by a low resolution stream segments (on a m3u8 level). - Ad segments are replaced by a low resolution stream segments (on a m3u8 level).
- Skips 2-3 seconds when switching to the live stream. - Skips 2-3 seconds when switching to the live stream.

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@ -0,0 +1,197 @@
twitch-videoad.js application/javascript
(function() {
if ( /(^|\.)twitch\.tv$/.test(document.location.hostname) === false ) { return; }
function declareOptions(scope) {
// Options / globals
scope.OPT_INITIAL_M3U8_ATTEMPTS = 10;
scope.AD_SIGNIFIER = 'stitched-ad';
scope.CLIENT_ID = 'kimne78kx3ncx6brgo4mv6wki5h1ko';
}
var gql_device_id = null;
const oldWorker = window.Worker;
window.Worker = class Worker extends oldWorker {
constructor(twitchBlobUrl) {
var jsURL = getWasmWorkerUrl(twitchBlobUrl);
var newBlobStr = `
${hookWorkerFetch.toString()}
hookWorkerFetch();
importScripts('${jsURL}');
`
super(URL.createObjectURL(new Blob([newBlobStr])));
}
}
function getWasmWorkerUrl(twitchBlobUrl) {
var req = new XMLHttpRequest();
req.open('GET', twitchBlobUrl, false);
req.send();
return req.responseText.split("'")[1];
}
function hookWorkerFetch() {
var realFetch = fetch;
fetch = async function(url, options) {
if (typeof url === 'string') {
if (url.includes('/api/channel/hls/')) {
var rawUrl = url.split(/[?#]/)[0];
var urlInfo = new URL(rawUrl);
urlInfo.searchParams.set('sig', (new URL(url)).searchParams.get('sig'));
urlInfo.searchParams.set('token', (new URL(url)).searchParams.get('token'));
//console.log('modify url ' + url + ' ------------------ ' + urlInfo.href);
url = urlInfo.href;
}
}
return realFetch.apply(this, arguments);
}
}
function makeGraphQlPacket(event, radToken, payload) {
return [{
operationName: 'ClientSideAdEventHandling_RecordAdEvent',
variables: {
input: {
eventName: event,
eventPayload: JSON.stringify(payload),
radToken,
},
},
extensions: {
persistedQuery: {
version: 1,
sha256Hash: '7e6c69e6eb59f8ccb97ab73686f3d8b7d85a72a0298745ccd8bfc68e4054ca5b',
},
},
}];
}
function gqlRequest(body) {
return fetch('https://gql.twitch.tv/gql', {
method: 'POST',
body: JSON.stringify(body),
headers: {
'client-id': CLIENT_ID,
'X-Device-Id': gql_device_id
}
});
}
function parseAttributes(str) {
return Object.fromEntries(
str.split(/(?:^|,)((?:[^=]*)=(?:"[^"]*"|[^,]*))/)
.filter(Boolean)
.map(x => {
const idx = x.indexOf('=');
const key = x.substring(0, idx);
const value = x.substring(idx +1);
const num = Number(value);
return [key, Number.isNaN(num) ? value.startsWith('"') ? JSON.parse(value) : value : num]
}));
}
declareOptions(window);
function hookFetch() {
var realFetch = window.fetch;
window.fetch = function(url, init, ...args) {
if (typeof url === 'string') {
var deviceId = init.headers['X-Device-Id'];
if (typeof deviceId !== 'string') {
deviceId = init.headers['Device-ID'];
}
if (typeof deviceId === 'string') {
gql_device_id = deviceId;
}
var tok = null, sig = null;
if (url.includes('/access_token')) {
return new Promise(async function(resolve, reject) {
var response = await realFetch(url, init);
if (response.status === 200) {
// TODO
} else {
resolve(response);
}
});
}
else if (url.includes('gql') && init && typeof init.body === 'string' && init.body.includes('PlaybackAccessToken')) {
return new Promise(async function(resolve, reject) {
var response = await realFetch(url, init);
if (response.status === 200) {
for (var i = 0; i < OPT_INITIAL_M3U8_ATTEMPTS; i++) {
var cloned = response.clone();
var responseData = await cloned.json();
if (responseData && responseData.data && responseData.data.streamPlaybackAccessToken && responseData.data.streamPlaybackAccessToken.value && responseData.data.streamPlaybackAccessToken.signature) {
var tokInfo = JSON.parse(responseData.data.streamPlaybackAccessToken.value);
var channelName = tokInfo.channel;
var urlInfo = new URL('https://usher.ttvnw.net/api/channel/hls/' + channelName + '.m3u8');
urlInfo.searchParams.set('sig', responseData.data.streamPlaybackAccessToken.signature);
urlInfo.searchParams.set('token', responseData.data.streamPlaybackAccessToken.value);
var encodingsM3u8Response = await realFetch(urlInfo.href);
if (encodingsM3u8Response.status === 200) {
var encodingsM3u8 = await encodingsM3u8Response.text();
var streamM3u8Url = encodingsM3u8.match(/^https:.*\.m3u8$/m)[0];
var streamM3u8Response = await realFetch(streamM3u8Url);
var streamM3u8 = await streamM3u8Response.text();
//console.log(streamM3u8);
if (streamM3u8.includes(AD_SIGNIFIER)) {
console.log('ad at req ' + i);
var matches = streamM3u8.match(/#EXT-X-DATERANGE:(ID="stitched-ad-[^\n]+)\n/);
if (matches.length > 1) {
const attrString = matches[1];
const attr = parseAttributes(attrString);
var podLength = parseInt(attr['X-TV-TWITCH-AD-POD-LENGTH'] ? attr['X-TV-TWITCH-AD-POD-LENGTH'] : '1');
var podPosition = parseInt(attr['X-TV-TWITCH-AD-POD-POSITION'] ? attr['X-TV-TWITCH-AD-POD-POSITION'] : '0');
var radToken = attr['X-TV-TWITCH-AD-RADS-TOKEN'];
var lineItemId = attr['X-TV-TWITCH-AD-LINE-ITEM-ID'];
var orderId = attr['X-TV-TWITCH-AD-ORDER-ID'];
var creativeId = attr['X-TV-TWITCH-AD-CREATIVE-ID'];
var adId = attr['X-TV-TWITCH-AD-ADVERTISER-ID'];
var rollType = attr['X-TV-TWITCH-AD-ROLL-TYPE'].toLowerCase();
const baseData = {
stitched: true,
roll_type: rollType,
player_mute: false,
player_volume: 0.5,
visible: true,
};
for (let podPosition = 0; podPosition < podLength; podPosition++) {
const extendedData = {
...baseData,
ad_id: adId,
ad_position: podPosition,
duration: 30,
creative_id: creativeId,
total_ads: podLength,
order_id: orderId,
line_item_id: lineItemId,
};
await gqlRequest(makeGraphQlPacket('video_ad_impression', radToken, extendedData));
for (let quartile = 0; quartile < 4; quartile++) {
await gqlRequest(
makeGraphQlPacket('video_ad_quartile_complete', radToken, {
...extendedData,
quartile: quartile + 1,
})
);
}
await gqlRequest(makeGraphQlPacket('video_ad_pod_complete', radToken, baseData));
}
}
} else {
console.log("no ad at req " + i);
break;
}
} else {
break;
}
} else {
console.log('malformed');
console.log(responseData);
break;
}
}
console.log(responseData);
resolve(response);
} else {
resolve(response);
}
});
}
}
return realFetch.apply(this, arguments);
}
}
hookFetch();
})();

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@ -0,0 +1,208 @@
// ==UserScript==
// @name TwitchAdSolutions (dyn-skip)
// @namespace https://github.com/pixeltris/TwitchAdSolutions
// @version 1.0
// @description Skips twitch ads, and reloads the stream
// @author pixeltris
// @match *://*.twitch.tv/*
// @downloadURL https://github.com/pixeltris/TwitchAdSolutions/raw/master/dyn-skip/dyn-skip-userscript.js
// @run-at document-start
// @grant none
// ==/UserScript==
// ad-skip from https://github.com/Nerixyz/ttv-tools/blob/master/src/context/context-script.ts
(function() {
'use strict';
function declareOptions(scope) {
// Options / globals
scope.OPT_INITIAL_M3U8_ATTEMPTS = 10;
scope.AD_SIGNIFIER = 'stitched-ad';
scope.CLIENT_ID = 'kimne78kx3ncx6brgo4mv6wki5h1ko';
}
var gql_device_id = null;
const oldWorker = window.Worker;
window.Worker = class Worker extends oldWorker {
constructor(twitchBlobUrl) {
var jsURL = getWasmWorkerUrl(twitchBlobUrl);
var newBlobStr = `
${hookWorkerFetch.toString()}
hookWorkerFetch();
importScripts('${jsURL}');
`
super(URL.createObjectURL(new Blob([newBlobStr])));
}
}
function getWasmWorkerUrl(twitchBlobUrl) {
var req = new XMLHttpRequest();
req.open('GET', twitchBlobUrl, false);
req.send();
return req.responseText.split("'")[1];
}
function hookWorkerFetch() {
var realFetch = fetch;
fetch = async function(url, options) {
if (typeof url === 'string') {
if (url.includes('/api/channel/hls/')) {
var rawUrl = url.split(/[?#]/)[0];
var urlInfo = new URL(rawUrl);
urlInfo.searchParams.set('sig', (new URL(url)).searchParams.get('sig'));
urlInfo.searchParams.set('token', (new URL(url)).searchParams.get('token'));
//console.log('modify url ' + url + ' ------------------ ' + urlInfo.href);
url = urlInfo.href;
}
}
return realFetch.apply(this, arguments);
}
}
function makeGraphQlPacket(event, radToken, payload) {
return [{
operationName: 'ClientSideAdEventHandling_RecordAdEvent',
variables: {
input: {
eventName: event,
eventPayload: JSON.stringify(payload),
radToken,
},
},
extensions: {
persistedQuery: {
version: 1,
sha256Hash: '7e6c69e6eb59f8ccb97ab73686f3d8b7d85a72a0298745ccd8bfc68e4054ca5b',
},
},
}];
}
function gqlRequest(body) {
return fetch('https://gql.twitch.tv/gql', {
method: 'POST',
body: JSON.stringify(body),
headers: {
'client-id': CLIENT_ID,
'X-Device-Id': gql_device_id
}
});
}
function parseAttributes(str) {
return Object.fromEntries(
str.split(/(?:^|,)((?:[^=]*)=(?:"[^"]*"|[^,]*))/)
.filter(Boolean)
.map(x => {
const idx = x.indexOf('=');
const key = x.substring(0, idx);
const value = x.substring(idx +1);
const num = Number(value);
return [key, Number.isNaN(num) ? value.startsWith('"') ? JSON.parse(value) : value : num]
}));
}
declareOptions(window);
function hookFetch() {
var realFetch = window.fetch;
window.fetch = function(url, init, ...args) {
if (typeof url === 'string') {
var deviceId = init.headers['X-Device-Id'];
if (typeof deviceId !== 'string') {
deviceId = init.headers['Device-ID'];
}
if (typeof deviceId === 'string') {
gql_device_id = deviceId;
}
var tok = null, sig = null;
if (url.includes('/access_token')) {
return new Promise(async function(resolve, reject) {
var response = await realFetch(url, init);
if (response.status === 200) {
// TODO
} else {
resolve(response);
}
});
}
else if (url.includes('gql') && init && typeof init.body === 'string' && init.body.includes('PlaybackAccessToken')) {
return new Promise(async function(resolve, reject) {
var response = await realFetch(url, init);
if (response.status === 200) {
for (var i = 0; i < OPT_INITIAL_M3U8_ATTEMPTS; i++) {
var cloned = response.clone();
var responseData = await cloned.json();
if (responseData && responseData.data && responseData.data.streamPlaybackAccessToken && responseData.data.streamPlaybackAccessToken.value && responseData.data.streamPlaybackAccessToken.signature) {
var tokInfo = JSON.parse(responseData.data.streamPlaybackAccessToken.value);
var channelName = tokInfo.channel;
var urlInfo = new URL('https://usher.ttvnw.net/api/channel/hls/' + channelName + '.m3u8');
urlInfo.searchParams.set('sig', responseData.data.streamPlaybackAccessToken.signature);
urlInfo.searchParams.set('token', responseData.data.streamPlaybackAccessToken.value);
var encodingsM3u8Response = await realFetch(urlInfo.href);
if (encodingsM3u8Response.status === 200) {
var encodingsM3u8 = await encodingsM3u8Response.text();
var streamM3u8Url = encodingsM3u8.match(/^https:.*\.m3u8$/m)[0];
var streamM3u8Response = await realFetch(streamM3u8Url);
var streamM3u8 = await streamM3u8Response.text();
//console.log(streamM3u8);
if (streamM3u8.includes(AD_SIGNIFIER)) {
console.log('ad at req ' + i);
var matches = streamM3u8.match(/#EXT-X-DATERANGE:(ID="stitched-ad-[^\n]+)\n/);
if (matches.length > 1) {
const attrString = matches[1];
const attr = parseAttributes(attrString);
var podLength = parseInt(attr['X-TV-TWITCH-AD-POD-LENGTH'] ? attr['X-TV-TWITCH-AD-POD-LENGTH'] : '1');
var podPosition = parseInt(attr['X-TV-TWITCH-AD-POD-POSITION'] ? attr['X-TV-TWITCH-AD-POD-POSITION'] : '0');
var radToken = attr['X-TV-TWITCH-AD-RADS-TOKEN'];
var lineItemId = attr['X-TV-TWITCH-AD-LINE-ITEM-ID'];
var orderId = attr['X-TV-TWITCH-AD-ORDER-ID'];
var creativeId = attr['X-TV-TWITCH-AD-CREATIVE-ID'];
var adId = attr['X-TV-TWITCH-AD-ADVERTISER-ID'];
var rollType = attr['X-TV-TWITCH-AD-ROLL-TYPE'].toLowerCase();
const baseData = {
stitched: true,
roll_type: rollType,
player_mute: false,
player_volume: 0.5,
visible: true,
};
for (let podPosition = 0; podPosition < podLength; podPosition++) {
const extendedData = {
...baseData,
ad_id: adId,
ad_position: podPosition,
duration: 30,
creative_id: creativeId,
total_ads: podLength,
order_id: orderId,
line_item_id: lineItemId,
};
await gqlRequest(makeGraphQlPacket('video_ad_impression', radToken, extendedData));
for (let quartile = 0; quartile < 4; quartile++) {
await gqlRequest(
makeGraphQlPacket('video_ad_quartile_complete', radToken, {
...extendedData,
quartile: quartile + 1,
})
);
}
await gqlRequest(makeGraphQlPacket('video_ad_pod_complete', radToken, baseData));
}
}
} else {
console.log("no ad at req " + i);
break;
}
} else {
break;
}
} else {
console.log('malformed');
console.log(responseData);
break;
}
}
console.log(responseData);
resolve(response);
} else {
resolve(response);
}
});
}
}
return realFetch.apply(this, arguments);
}
}
hookFetch();
})();