// ==UserScript==
// @name 猫抓 - 深度搜索
// @namespace https://bmmmd.com
// @version 2.5.4.2
// @description 猫抓扩展提取出来的深度搜索脚本。
// @author bmm
// @match http://*/*
// @match https://*/*
// @exclude https://ffmpeg.bmmmd.com/
// @exclude https://ffmpeg2.bmmmd.com/
// @icon data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @grant none
// @run-at document-start
// @license GPL v3
// ==/UserScript==
// window.Worker = undefined;
// const CATCH_SEARCH_ONLY = true;
(function () {
const CATCH_SEARCH_DEBUG = false;
// 防止 console.log 被劫持
if (CATCH_SEARCH_DEBUG && console.log.toString() != 'function log() { [native code] }') {
const newIframe = top.document.createElement("iframe");
newIframe.style.width = 0;
newIframe.style.height = 0;
top.document.body.appendChild(newIframe);
newIframe.contentwindow.document.write("<script>(window.catCatchLOG=function(){console.log(...arguments);})();</script>");
window.console.log = newIframe.contentwindow.catCatchLOG;
}
// 防止 window.postMessage 被劫持
const _postMessage = window.postMessage;
console.log("start search.js");
const filter = new Set();
const reKeyURL = /URI="(.*)"/;
// JSON.parse
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, depth = 0) {
CATCH_SEARCH_DEBUG && console.log(data);
let index = 0;
if (!data) { return; }
if (data instanceof Array && data.length == 16) {
const isKey = data.every(function (value) {
return typeof value == 'number' && value <= 256
});
if (isKey) {
postData({ action: "catCatchAddKey", key: data, href: location.href, ext: "key" });
return;
}
}
for (let key in data) {
if (index != 0) { depth = 0; } index++;
if (typeof data[key] == "object") {
// 查找疑似key
if (data[key] instanceof Array && data[key].length == 16) {
const isKey = data[key].every(function (value) {
return typeof value == 'number' && value <= 256
});
isKey && postData({ action: "catCatchAddKey", key: data[key], href: location.href, ext: "key" });
continue;
}
if (depth > 10) { continue; } // 防止死循环 最大深度
findMedia(data[key], ++depth);
continue;
}
if (typeof data[key] == "string") {
if (isUrl(data[key])) {
let ext = getExtension(data[key]);
ext && postData({ action: "catCatchAddMedia", url: data[key], href: location.href, ext: ext });
continue;
}
if (data[key].substring(0, 7).toUpperCase() == "#EXTM3U") {
isFullM3u8(data[key]) && toUrl(data[key]);
continue;
}
if (data[key].substring(0, 17).toLowerCase() == "data:application/") {
const text = getDataM3U8(data[key].substring(17));
text && toUrl(text);
continue;
}
if (data[key].toLowerCase().includes("urn:mpeg:dash:schema:mpd")) {
toUrl(data[key], "mpd");
continue;
}
if (CATCH_SEARCH_DEBUG && data[key].includes("manifest")) {
console.log(data);
}
}
}
}
// XHR
const _xhrOpen = XMLHttpRequest.prototype.open;
XMLHttpRequest.prototype.open = function (method) {
method = method.toUpperCase();
CATCH_SEARCH_DEBUG && console.log(this);
this.addEventListener("readystatechange", function (event) {
CATCH_SEARCH_DEBUG && console.log(this);
if (this.status != 200) { return; }
// 查找疑似key
if (this.responseType == "arraybuffer" && this.response?.byteLength && this.response.byteLength == 32) {
console.log(this.response);
}
if (this.responseType == "arraybuffer" && this.response?.byteLength && this.response.byteLength == 16) {
postData({ action: "catCatchAddKey", key: this.response, href: location.href, ext: "key" });
}
if (typeof this.response == "object") {
findMedia(this.response);
return;
}
if (this.response == "" || typeof this.response != "string") { return; }
if (this.response.substring(0, 17).toLowerCase() == "data:application/") {
const text = getDataM3U8(this.response.substring(17));
text && toUrl(text);
return;
}
if (this.responseURL.substring(0, 17).toLowerCase() == "data:application/") {
const text = getDataM3U8(this.responseURL.substring(17));
text && toUrl(text);
return;
}
if (isUrl(this.response)) {
const ext = getExtension(this.response);
ext && postData({ action: "catCatchAddMedia", url: this.response, href: location.href, ext: ext });
return;
}
if (this.response.toUpperCase().includes("#EXTM3U")) {
if (this.response.substring(0, 7) == "#EXTM3U") {
if (method == "GET") {
toUrl(addBashUrl(getBashUrl(this.responseURL), this.response));
postData({ action: "catCatchAddMedia", url: this.responseURL, href: location.href, ext: "m3u8" });
return;
}
isFullM3u8(this.response) && toUrl(this.response);
return;
}
if (isJSON(this.response)) {
if (method == "GET") {
postData({ action: "catCatchAddMedia", url: this.responseURL, href: location.href, ext: "json" });
return;
}
toUrl(this.response, "json");
return;
}
}
const isJson = isJSON(this.response);
if (isJson) {
findMedia(isJson);
return;
}
});
_xhrOpen.apply(this, arguments);
}
XMLHttpRequest.prototype.open.toString = function () {
return _xhrOpen.toString();
}
// fetch
const _fetch = window.fetch;
window.fetch = async function (input, init) {
const response = await _fetch.apply(this, arguments);
const clone = response.clone();
CATCH_SEARCH_DEBUG && console.log(response);
response.arrayBuffer()
.then(arrayBuffer => {
CATCH_SEARCH_DEBUG && console.log({ arrayBuffer, input });
if (arrayBuffer.byteLength == 16) {
postData({ action: "catCatchAddKey", key: arrayBuffer, href: location.href, ext: "key" });
return;
}
let text = new TextDecoder().decode(arrayBuffer);
if (text == "") { return; }
if (typeof input == "object") { input = input.url; }
let isJson = isJSON(text);
if (isJson) {
findMedia(isJson);
return;
}
if (text.substring(0, 7).toUpperCase() == "#EXTM3U") {
if (init?.method == undefined || (init.method && init.method.toUpperCase() == "GET")) {
toUrl(addBashUrl(getBashUrl(input), text));
postData({ action: "catCatchAddMedia", url: input, href: location.href, ext: "m3u8" });
return;
}
isFullM3u8(text) && toUrl(text);
return;
}
if (text.substring(0, 17).toLowerCase() == "data:application/") {
const text = getDataM3U8(text.substring(0, 17));
text && toUrl(text);
return;
}
});
return clone;
}
window.fetch.toString = function () {
return _fetch.toString();
}
// Array.prototype.slice
const _slice = Array.prototype.slice;
Array.prototype.slice = function (start, end) {
const data = _slice.apply(this, arguments);
if (end == 16 && this.length == 32) {
for (let item of data) {
if (typeof item != "number" || item > 255) { return data; }
}
postData({ action: "catCatchAddKey", key: data, href: location.href, ext: "key" });
}
return data;
}
Array.prototype.slice.toString = function () {
return _slice.toString();
}
// Int8Array.prototype.subarray
const _subarray = Int8Array.prototype.subarray;
Int8Array.prototype.subarray = function (start, end) {
const data = _subarray.apply(this, arguments);
if (data.byteLength == 16) {
const uint8 = new _Uint8Array(data);
for (let item of uint8) {
if (typeof item != "number" || item > 255) { return data; }
}
postData({ action: "catCatchAddKey", key: uint8.buffer, href: location.href, ext: "key" });
}
return data;
}
Int8Array.prototype.subarray.toString = function () {
return _subarray.toString();
}
// window.btoa / window.atob
const _btoa = window.btoa;
window.btoa = function (data) {
const base64 = _btoa.apply(this, arguments);
CATCH_SEARCH_DEBUG && console.log(base64, data, base64.length);
if (base64.length == 24 && base64.substring(22, 24) == "==") {
postData({ action: "catCatchAddKey", key: base64, href: location.href, ext: "base64Key" });
}
if (data.substring(0, 7).toUpperCase() == "#EXTM3U" && isFullM3u8(data)) {
toUrl(data);
}
return base64;
}
window.btoa.toString = function () {
return _btoa.toString();
}
const _atob = window.atob;
window.atob = function (base64) {
const data = _atob.apply(this, arguments);
CATCH_SEARCH_DEBUG && console.log(base64, data, base64.length);
if (base64.length == 24 && base64.substring(22, 24) == "==") {
postData({ action: "catCatchAddKey", key: base64, href: location.href, ext: "base64Key" });
}
if (data.substring(0, 7).toUpperCase() == "#EXTM3U" && isFullM3u8(data)) {
toUrl(data);
}
if (data.endsWith("</MPD>")) {
toUrl(data, "mpd");
}
return data;
}
window.atob.toString = function () {
return _atob.toString();
}
// fromCharCode
const _fromCharCode = String.fromCharCode;
let m3u8Text = '';
String.fromCharCode = function () {
const data = _fromCharCode.apply(this, arguments);
if (data.length < 7) { return data; }
if (data.substring(0, 7) == "#EXTM3U" || data.includes("#EXTINF:")) {
m3u8Text += data;
if (m3u8Text.includes("#EXT-X-ENDLIST")) {
toUrl(m3u8Text.split("#EXT-X-ENDLIST")[0] + "#EXT-X-ENDLIST");
m3u8Text = '';
}
return data;
}
const key = data.replaceAll("\u0010", "");
if (key.length == 32) {
postData({ action: "catCatchAddKey", key: key, href: location.href, ext: "key" });
}
return data;
}
String.fromCharCode.toString = function () {
return _fromCharCode.toString();
}
// DataView
const _DataView = DataView;
window.DataView = new Proxy(_DataView, {
construct(target, args) {
let instance = new target(...args);
instance.setInt32 = new Proxy(instance.setInt32, {
apply(target, thisArg, argArray) {
Reflect.apply(target, thisArg, argArray);
if (thisArg.byteLength == 16) {
postData({ action: "catCatchAddKey", key: thisArg.buffer, href: location.href, ext: "key" });
}
return;
}
});
if (instance.byteLength == 16 && instance.buffer.byteLength == 16) {
postData({ action: "catCatchAddKey", key: instance.buffer, href: location.href, ext: "key" });
}
if (instance.byteLength == 256 || instance.byteLength == 128) {
const _buffer = isRepeatedExpansion(instance.buffer, 16);
if (_buffer) {
postData({ action: "catCatchAddKey", key: _buffer, href: location.href, ext: "key" });
}
}
return instance;
}
});
// escape
const _escape = window.escape;
window.escape = function (str) {
if (str?.length && str.length == 24 && str.substring(22, 24) == "==") {
postData({ action: "catCatchAddKey", key: str, href: location.href, ext: "base64Key" });
}
return _escape(str);
}
escape.toString = function () {
return _escape.toString();
}
// findTypedArray
const findTypedArray = (target, args) => {
const isArray = Array.isArray(args[0]) && args[0].length === 16;
const isArrayBuffer = args[0] instanceof ArrayBuffer && args[0].byteLength === 16;
const instance = new target(...args);
if (isArray || isArrayBuffer) {
postData({ action: "catCatchAddKey", key: args[0], href: location.href, ext: "key" });
} else if (instance.buffer.byteLength === 16) {
postData({ action: "catCatchAddKey", key: instance.buffer, href: location.href, ext: "key" });
}
return instance;
}
// Uint8Array
const _Uint8Array = Uint8Array;
window.Uint8Array = new Proxy(_Uint8Array, {
construct(target, args) {
return findTypedArray(target, args);
}
});
// Uint16Array
const _Uint16Array = Uint16Array;
window.Uint16Array = new Proxy(_Uint16Array, {
construct(target, args) {
return findTypedArray(target, args);
}
});
// Uint32Array
const _Uint32Array = Uint32Array;
window.Uint32Array = new Proxy(_Uint32Array, {
construct(target, args) {
return findTypedArray(target, args);
}
});
// Array join
const _arrayJoin = Array.prototype.join;
Array.prototype.join = function () {
const data = _arrayJoin.apply(this, arguments);
if (data.substring(0, 7).toUpperCase() == "#EXTM3U") {
isFullM3u8(data) && toUrl(data);
}
return data;
}
Array.prototype.join.toString = function () {
return _arrayJoin.toString();
}
function isUrl(str) {
return (str.startsWith("http://") || str.startsWith("https://"));
}
function isFullM3u8(text) {
let tsLists = text.split("\n");
for (let ts of tsLists) {
if (ts[0] == "#") { continue; }
if (isUrl(ts)) { return true; }
return false;
}
return false;
}
function getBashUrl(url) {
let bashUrl = url.split("/");
bashUrl.pop();
return bashUrl.join("/") + "/";
}
function addBashUrl(baseUrl, m3u8Text) {
let m3u8_split = m3u8Text.split("\n");
m3u8Text = "";
for (let ts of m3u8_split) {
if (ts == "" || ts == " " || ts == "\n") { continue; }
if (ts.includes("URI=")) {
let KeyURL = reKeyURL.exec(ts);
if (KeyURL && KeyURL[1] && !isUrl(KeyURL[1])) {
ts = ts.replace(reKeyURL, 'URI="' + baseUrl + KeyURL[1] + '"');
}
}
if (ts[0] != "#" && !isUrl(ts)) {
ts = baseUrl + ts;
}
m3u8Text += ts + "\n";
}
return m3u8Text;
}
function isJSON(str) {
if (typeof str == "object") {
return str;
}
if (typeof str == "string") {
try {
return _JSONparse(str);
} catch (e) { return false; }
}
return false;
}
function getExtension(str) {
let ext;
try { ext = new URL(str); } catch (e) { return undefined; }
ext = ext.pathname.split(".");
if (ext.length == 1) { return undefined; }
ext = ext[ext.length - 1].toLowerCase();
if (ext == "m3u8" ||
ext == "m3u" ||
ext == "mpd" ||
ext == "mp4" ||
ext == "mp3" ||
ext == "flv" ||
ext == "key"
) { return ext; }
return false;
}
function toUrl(text, ext = "m3u8") {
let url = URL.createObjectURL(new Blob([new TextEncoder("utf-8").encode(text)]));
postData({ action: "catCatchAddMedia", url: url, href: location.href, ext: ext });
}
function getDataM3U8(text) {
const type = ["vnd.apple.mpegurl", "x-mpegurl", "mpegurl"];
let isM3U8 = false;
for (let item of type) {
if (text.substring(0, item.length).toLowerCase() == item) {
text = text.substring(item.length + 1);
isM3U8 = true;
break;
}
}
if (!isM3U8) { return false; }
if (text.substring(0, 7).toLowerCase() == "base64,") {
return _atob(text.substring(7));
}
return text;
}
function postData(data) {
if (data.action == "catCatchAddKey") {
if (data.key == "AAAAAAAAAAAAAAAAAAAAAA==") { return; }
if (data.key instanceof ArrayBuffer && isArrayBufferAllZero(data.key)) { return; }
}
let value = data.url ? data.url : data.key;
if (value instanceof ArrayBuffer || value instanceof Array) {
if (value.byteLength == 0) { return; }
data.key = ArrayToBase64(value);
value = data.key;
}
if (filter.has(value)) { return false; }
filter.add(value);
data.requestId = Date.now().toString() + filter.size;
_postMessage(data);
}
function ArrayToBase64(data) {
try {
let bytes = new _Uint8Array(data);
let binary = "";
for (let i = 0; i < bytes.byteLength; i++) {
binary += _fromCharCode(bytes[i]);
}
if (typeof _btoa == "function") {
return _btoa(binary);
}
return _btoa(binary);
} catch (e) {
return false;
}
}
function isRepeatedExpansion(array, expansionLength) {
let _buffer = new _Uint8Array(expansionLength);
array = new _Uint8Array(array);
for (let i = 0; i < expansionLength; i++) {
_buffer[i] = array[i];
for (let j = i + expansionLength; j < array.byteLength; j += expansionLength) {
if (array[i] !== array[j]) {
return false;
}
}
}
return _buffer.buffer;
}
function isArrayBufferAllZero(buffer) {
let view = new _Uint8Array(buffer);
for (let i = 0; i < view.length; i++) {
if (view[i] !== 0) {
return false;
}
}
return true;
}
})();
