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猫抓 - 深度搜索

猫抓扩展提取出来的深度搜索脚本。

目前为 2023-07-29 提交的版本。查看 最新版本。

  1. // ==UserScript==
  2. // @name         猫抓 - 深度搜索
  3. // @namespace    https://bmmmd.com
  4. // @version      2.4.4.0
  5. // @description  猫抓扩展提取出来的深度搜索脚本。
  6. // @author       bmm
  7. // @match        http://*/*
  8. // @match        https://*/*
  9. // @icon         data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
  10. // @grant        none
  11. // @run-at       document-start
  12. // @license      GPL v3
  13. // ==/UserScript==
  14.  
  15. (function () {
  16.     const _log = console.log;
  17.     _log("start search.js");
  18.     const CATCH_SEARCH_DEBUG = false;
  19.     const filter = new Set();
  20.  
  21.     // 拦截JSON.parse 分析内容
  22.     const _JSONparse = JSON.parse;
  23.     JSON.parse = function () {
  24.         let data = _JSONparse.apply(this, arguments);
  25.         findMedia(data);
  26.         return data;
  27.     }
  28.     JSON.parse.toString = function () {
  29.         return _JSONparse.toString();
  30.     }
  31.  
  32.     async function findMedia(data, depth = 0) {
  33.         CATCH_SEARCH_DEBUG && _log(data);
  34.         let index = 0;
  35.         if (!data) { return; }
  36.         if (data instanceof Array && data.length == 16) {
  37.             const isKey = data.every(function (value) {
  38.                 return typeof value == 'number' && value <= 256
  39.             });
  40.             if (isKey) {
  41.                 postData({ action: "catCatchAddKey", key: data, href: location.href, ext: "key" });
  42.                 return;
  43.             }
  44.         }
  45.         for (let key in data) {
  46.             if (index != 0) { depth = 0; } index++;
  47.             if (typeof data[key] == "object") {
  48.                 // 查找疑似key
  49.                 if (data[key] instanceof Array && data[key].length == 16) {
  50.                     const isKey = data[key].every(function (value) {
  51.                         return typeof value == 'number' && value <= 256
  52.                     });
  53.                     isKey && postData({ action: "catCatchAddKey", key: data[key], href: location.href, ext: "key" });
  54.                     continue;
  55.                 }
  56.                 if (depth > 10) { continue; }  // 防止死循环 最大深度
  57.                 findMedia(data[key], ++depth);
  58.                 continue;
  59.             }
  60.             if (typeof data[key] == "string") {
  61.                 if (isUrl(data[key])) {
  62.                     let ext = getExtension(data[key]);
  63.                     ext && postData({ action: "catCatchAddMedia", url: data[key], href: location.href, ext: ext });
  64.                     continue;
  65.                 }
  66.                 if (data[key].substring(0, 7).toUpperCase() == "#EXTM3U") {
  67.                     isFullM3u8(data[key]) && toUrl(data[key]);
  68.                     continue;
  69.                 }
  70.                 if (data[key].substring(0, 17).toLowerCase() == "data:application/") {
  71.                     const text = getDataM3U8(data[key].substring(17));
  72.                     text && toUrl(text);
  73.                     continue;
  74.                 }
  75.                 if (data[key].toLowerCase().includes("urn:mpeg:dash:schema:mpd")) {
  76.                     toUrl(data[key], "mpd");
  77.                     continue;
  78.                 }
  79.                 if (CATCH_SEARCH_DEBUG && data[key].includes("manifest")) {
  80.                     _log(data);
  81.                 }
  82.             }
  83.         }
  84.     }
  85.  
  86.     // 拦截 XHR 分析内容
  87.     const _xhrOpen = XMLHttpRequest.prototype.open;
  88.     XMLHttpRequest.prototype.open = function (method) {
  89.         method = method.toUpperCase();
  90.         CATCH_SEARCH_DEBUG && _log(this);
  91.         this.addEventListener("readystatechange", function (event) {
  92.             CATCH_SEARCH_DEBUG && _log(this);
  93.             if (this.status != 200) { return; }
  94.             // 查找疑似key
  95.             if (this.responseType == "arraybuffer" && this.response?.byteLength && this.response.byteLength == 16) {
  96.                 postData({ action: "catCatchAddKey", key: this.response, href: location.href, ext: "key" });
  97.             }
  98.             if (this.response == "" || typeof this.response != "string") { return; }
  99.             if (this.response.substring(0, 17).toLowerCase() == "data:application/") {
  100.                 const text = this.response.substring(17);
  101.                 toUrl(getDataM3U8(text));
  102.                 return;
  103.             }
  104.             if (this.responseURL.substring(0, 17).toLowerCase() == "data:application/") {
  105.                 const text = getDataM3U8(this.responseURL.substring(17));
  106.                 text && toUrl(text);
  107.                 return;
  108.             }
  109.             if (isUrl(this.response)) {
  110.                 const ext = getExtension(this.response);
  111.                 ext && postData({ action: "catCatchAddMedia", url: this.response, href: location.href, ext: ext });
  112.                 return;
  113.             }
  114.             if (this.response.toUpperCase().includes("#EXTM3U")) {
  115.                 if (this.response.substring(0, 7) == "#EXTM3U") {
  116.                     if (method == "GET") {
  117.                         postData({ action: "catCatchAddMedia", url: this.responseURL, href: location.href, ext: "m3u8" });
  118.                         return;
  119.                     }
  120.                     isFullM3u8(this.response) && toUrl(this.response);
  121.                     return;
  122.                 }
  123.                 if (isJSON(this.response)) {
  124.                     if (method == "GET") {
  125.                         postData({ action: "catCatchAddMedia", url: this.responseURL, href: location.href, ext: "json" });
  126.                         return;
  127.                     }
  128.                     toUrl(this.response, "json");
  129.                     return;
  130.                 }
  131.             }
  132.             const isJson = isJSON(this.response);
  133.             if (isJson) {
  134.                 findMedia(isJson);
  135.                 return;
  136.             }
  137.         });
  138.         _xhrOpen.apply(this, arguments);
  139.     }
  140.     XMLHttpRequest.prototype.open.toString = function () {
  141.         return _xhrOpen.toString();
  142.     }
  143.  
  144.     // 拦截 fetch 分析内容
  145.     const _fetch = window.fetch;
  146.     window.fetch = async function (input, init) {
  147.         const response = await _fetch.apply(this, arguments);
  148.         const clone = response.clone();
  149.         CATCH_SEARCH_DEBUG && _log(response);
  150.         response.arrayBuffer()
  151.             .then(arrayBuffer => {
  152.                 CATCH_SEARCH_DEBUG && _log({ arrayBuffer, input });
  153.                 if (arrayBuffer.byteLength == 16) {
  154.                     postData({ action: "catCatchAddKey", key: arrayBuffer, href: location.href, ext: "key" });
  155.                     return;
  156.                 }
  157.                 let text = new TextDecoder().decode(arrayBuffer);
  158.                 if (text == "") { return; }
  159.                 if (typeof input == "object") { input = input.url; }
  160.                 let isJson = isJSON(text);
  161.                 if (isJson) {
  162.                     findMedia(isJson);
  163.                     return;
  164.                 }
  165.                 if (text.substring(0, 7).toUpperCase() == "#EXTM3U") {
  166.                     if (init?.method == undefined || (init.method && init.method.toUpperCase() == "GET")) {
  167.                         postData({ action: "catCatchAddMedia", url: input, href: location.href, ext: "m3u8" });
  168.                         return;
  169.                     }
  170.                     isFullM3u8(text) && toUrl(text);
  171.                     return;
  172.                 }
  173.                 if (text.substring(0, 17).toLowerCase() == "data:application/") {
  174.                     const text = getDataM3U8(text.substring(0, 17));
  175.                     text && toUrl(text);
  176.                     return;
  177.                 }
  178.             });
  179.         return clone;
  180.     }
  181.     window.fetch.toString = function () {
  182.         return _fetch.toString();
  183.     }
  184.  
  185.     // 拦截 Array.prototype.slice
  186.     const _slice = Array.prototype.slice;
  187.     Array.prototype.slice = function (start, end) {
  188.         let data = _slice.apply(this, arguments);
  189.         if (end == 16 && this.length == 32) {
  190.             for (let item of data) {
  191.                 if (typeof item != "number" || item > 255) { return data; }
  192.             }
  193.             postData({ action: "catCatchAddKey", key: data, href: location.href, ext: "key" });
  194.         }
  195.         return data;
  196.     }
  197.     Array.prototype.slice.toString = function () {
  198.         return _slice.toString();
  199.     }
  200.  
  201.     // 拦截 window.btoa / window.atob
  202.     const _btoa = window.btoa;
  203.     window.btoa = function (data) {
  204.         const base64 = _btoa.apply(this, arguments);
  205.         CATCH_SEARCH_DEBUG && _log(base64, data, base64.length);
  206.         if (base64.length == 24 && base64.substring(22, 24) == "==") {
  207.             postData({ action: "catCatchAddKey", key: base64, href: location.href, ext: "base64Key" });
  208.         }
  209.         if (data.substring(0, 7).toUpperCase() == "#EXTM3U" && isFullM3u8(data)) {
  210.             toUrl(data);
  211.         }
  212.         return base64;
  213.     }
  214.     // 反检测
  215.     window.btoa.toString = function () {
  216.         return _btoa.toString();
  217.     }
  218.     const _atob = window.atob;
  219.     window.atob = function (base64) {
  220.         const data = _atob.apply(this, arguments);
  221.         CATCH_SEARCH_DEBUG && _log(base64, data, base64.length);
  222.         if (base64.length == 24 && base64.substring(22, 24) == "==") {
  223.             postData({ action: "catCatchAddKey", key: base64, href: location.href, ext: "base64Key" });
  224.         }
  225.         if (data.substring(0, 7).toUpperCase() == "#EXTM3U" && isFullM3u8(data)) {
  226.             toUrl(data);
  227.         }
  228.         return data;
  229.     }
  230.     window.atob.toString = function () {
  231.         return _atob.toString();
  232.     }
  233.  
  234.     // 拦截fromCharCode
  235.     const _fromCharCode = String.fromCharCode;
  236.     let m3u8Text = '';
  237.     String.fromCharCode = function () {
  238.         const data = _fromCharCode.apply(this, arguments);
  239.         if (data.length < 7) { return data; }
  240.         if (data.substring(0, 7) == "#EXTM3U" || data.includes("#EXTINF:")) {
  241.             m3u8Text += data;
  242.             if (m3u8Text.includes("#EXT-X-ENDLIST")) {
  243.                 toUrl(m3u8Text.split("#EXT-X-ENDLIST")[0] + "#EXT-X-ENDLIST");
  244.                 m3u8Text = '';
  245.             }
  246.             return data;
  247.         }
  248.         const key = data.replaceAll("\u0010", "");
  249.         if (key.length == 32) {
  250.             postData({ action: "catCatchAddKey", key: key, href: location.href, ext: "key" });
  251.         }
  252.         return data;
  253.     }
  254.     String.fromCharCodetoString = function () {
  255.         return _fromCharCode.toString();
  256.     }
  257.  
  258.     function isUrl(str) {
  259.         return /^http[s]*:\/\/.+/i.test(str);
  260.     }
  261.     function isFullM3u8(text) {
  262.         let tsLists = text.split("\n");
  263.         for (let ts of tsLists) {
  264.             if (ts[0] == "#") { continue; }
  265.             if (isUrl(ts)) { return true; }
  266.             return false;
  267.         }
  268.         return false;
  269.     }
  270.     function isJSON(str) {
  271.         if (typeof str == "object") {
  272.             return str;
  273.         }
  274.         if (typeof str == "string") {
  275.             try {
  276.                 return _JSONparse(str);
  277.             } catch (e) { return false; }
  278.         }
  279.         return false;
  280.     }
  281.     function getExtension(str) {
  282.         let ext;
  283.         try { ext = new URL(str); } catch (e) { return undefined; }
  284.         ext = ext.pathname.split(".");
  285.         if (ext.length == 1) { return undefined; }
  286.         ext = ext[ext.length - 1].toLowerCase();
  287.         if (ext == "m3u8" ||
  288.             ext == "m3u" ||
  289.             ext == "mpd" ||
  290.             ext == "mp4" ||
  291.             ext == "mp3" ||
  292.             ext == "key"
  293.         ) { return ext; }
  294.         return false;
  295.     }
  296.     function toUrl(text, ext = "m3u8") {
  297.         let url = URL.createObjectURL(new Blob([new TextEncoder("utf-8").encode(text)]));
  298.         postData({ action: "catCatchAddMedia", url: url, href: location.href, ext: ext });
  299.     }
  300.     function getDataM3U8(text) {
  301.         const type = ["vnd.apple.mpegurl", "x-mpegurl", "mpegurl"];
  302.         let isM3U8 = false;
  303.         for (let item of type) {
  304.             if (text.substring(0, item.length).toLowerCase() == item) {
  305.                 text = text.substring(item.length + 1);
  306.                 isM3U8 = true;
  307.                 break;
  308.             }
  309.         }
  310.         if (!isM3U8) { return false; }
  311.         if (text.substring(0, 7).toLowerCase() == "base64,") {
  312.             return window.atob(text.substring(7));
  313.         }
  314.         return text;
  315.     }
  316.     function postData(data) {
  317.         const key = data.url ? data.url : data.key;
  318.         if (filter.has(key)) { return false; }
  319.         filter.add(key);
  320.         data.requestId = Date.now().toString() + filter.size;
  321.         window.postMessage(data);
  322.     }
  323. })();

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