// ==UserScript==
// @name         小鹅通 通用m3u8获取
// @namespace    https://94cat.com/
// @version      0.10
// @description  获取某鹅通m3u8内容 重新拼装真实ts地址和解密真实密钥 发送给扩展
// @author       mz
// @match        https://*/*
// @match        http://*/*
// @icon         data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @grant        none
// @run-at       document-start
// @license      GPL v3
// ==/UserScript==
(function () {
'use strict';
//let URLext = {};
const URLext = new Map();
const _indexOf = String.prototype.indexOf;
String.prototype.indexOf = function () {
if (arguments[0] == "#EXTM3U") {
// 先尝试不传入 URLext 有可能m3u8本身包含远程链接 不需要URLext
parseSendM3U8(this);
URLext.forEach((item) => {
parseSendM3U8(this, item);
});
}
return _indexOf.apply(this, arguments);
}
String.prototype.indexOf.toString = function () {
return _indexOf.toString();
}
const _JSONparse = JSON.parse;
JSON.parse = function () {
let data = _JSONparse.apply(this, arguments);
findMedia(data);
return data;
}
JSON.parse.toString = function () {
return _JSONparse.toString();
}
async function findMedia(data, raw = undefined, depth = 0) {
for (let key in data) {
if (typeof data[key] == "object") {
if (depth > 25) { continue; }
if (!raw) { raw = data; }
findMedia(data[key], raw, ++depth);
continue;
}
if (typeof data[key] == "string" && key == "video_urls" && data[key].slice(-4) == "__ba") {
let base64 = data[key].replace("__ba", "");
base64 = base64.replaceAll("@", "1").replaceAll("#", "2").replaceAll("$", "3").replaceAll("%", "4");
let json = _JSONparse(atob(base64));
if (!json) { return }
//console.error(json);
for (let obj of json) {
fetch(obj.url).then(response => response.text())
.then(m3u8 => {
const lines = m3u8.split('\n');
let keyFlag = false;
for (let i = 0; i < lines.length; i++) {
if (lines[i] == '#EXT-X-ENDLIST') { break; }
if (!keyFlag && lines[i].includes("#EXT-X-KEY:METHOD=AES-128,URI=")) {
const match = lines[i].match(/URI="([^"]*)"/);
if (match && match[1]) {
keyFlag = true;
if (window.__user_id) {
getKey(match[1] + "&uid=" + window.__user_id, window.__user_id);
} else if (document.cookie) {
for (let cookie of document.cookie.split(';')) {
cookie = cookie.trim();
if (cookie.substring(0, 10) == "userInfo={") {
cookie = cookie.slice(9);
cookie = isJSON(cookie);
cookie && cookie.user_id && getKey(match[1] + "&uid=" + cookie.user_id, cookie.user_id);
break;
}
}
}
}
continue;
}
if (lines[i][0] != "#") {
lines[i] = `${obj.ext.host}/${obj.ext.path}/${lines[i]}&${obj.ext.param}`;
}
}
m3u8 = lines.join('\n');
let url = URL.createObjectURL(new Blob([new TextEncoder("utf-8").encode(m3u8)]));
window.postMessage({ action: "catCatchAddMedia", url: url, href: location.href, ext: "m3u8" });
});
}
} else if (data.confusion_m3u8 && data.ext) {
//console.error(data.ext);
URLext.set(data.ext.host, data.ext);
//URLext = data.ext;
} else if (data.app_id && data.host && data.param && data.path) {
URLext.set(data.host, data);
//URLext = data;
}
}
}
function uid2byte(uid) {
const byteArray = new Array;
for (let i = 0; i < uid.length; i++) {
let temp = uid.charCodeAt(i);
if (temp >= 65536 && temp <= 1114111) {
byteArray.push(temp >> 18 & 7 | 240);
byteArray.push(temp >> 12 & 63 | 128);
byteArray.push(temp >> 6 & 63 | 128);
byteArray.push(63 & temp | 128);
} else if (temp >= 2048 && temp <= 65535) {
byteArray.push(temp >> 12 & 15 | 224);
byteArray.push(temp >> 6 & 63 | 128);
byteArray.push(63 & temp | 128);
} else if (temp >= 128 && temp <= 2047) {
byteArray.push(temp >> 6 & 31 | 192);
byteArray.push(63 & temp | 128);
} else {
byteArray.push(255 & temp);
}
}
return byteArray;
}
function getKey(url, userId) {
fetch(url).then(response => response.arrayBuffer())
.then(buffer => {
let newKey = [];
buffer = new Uint8Array(buffer);
const uidByte = uid2byte(userId);
for (let i in buffer) {
newKey.push(buffer[i] ^ uidByte[i]);
}
// console.error(newKey);
window.postMessage({ action: "catCatchAddKey", key: newKey, href: location.href });
});
}
const _xhrOpen = XMLHttpRequest.prototype.open;
XMLHttpRequest.prototype.open = function () {
this.addEventListener("readystatechange", function (event) {
const response = this.currentTarget ? this.currentTarget.response : this.response;
const isJson = isJSON(response);
isJson && findMedia(isJson);
});
_xhrOpen.apply(this, arguments);
}
XMLHttpRequest.prototype.open.toString = function () {
return _xhrOpen.toString();
}
function isJSON(str) {
if (typeof str == "object") {
return str;
}
if (typeof str == "string") {
try {
return _JSONparse(str);
} catch (e) { return false; }
}
return false;
}
function parseSendM3U8(m3u8, URLext = undefined) {
const lines = m3u8.split('\n');
m3u8 = ''
for (let i = 0; i < lines.length; i++) {
if (lines[i].startsWith("#EXT-X-KEY") && lines[i].includes('URI=""')) {
continue;
}
if (lines[i][0] != "#") {
if (!URLext && !lines[i].startsWith("http")) {
return false;
}
if (lines[i].startsWith("http")) {
m3u8 += lines[i] + "\n";
} else {
m3u8 += `${URLext.host}/${URLext.path}/${lines[i]}&${URLext.param}\n`;
}
continue;
}
m3u8 += lines[i] + "\n";
if (lines[i] == "#EXT-X-ENDLIST") { break; }
}
// console.error(m3u8);
const url = URL.createObjectURL(new Blob([new TextEncoder("utf-8").encode(m3u8)]));
window.postMessage({ action: "catCatchAddMedia", url: url, href: location.href, ext: "m3u8" });
}
})();