钉钉直播回放 -> 猫抓
// ==UserScript==
// @name 钉钉直播回放视频抓取
// @namespace http://tampermonkey.net/
// @version 2025-03-08
// @description 钉钉直播回放 -> 猫抓
// @author kdy
// @match https://n.dingtalk.com/*
// @grant none
// @run-at document-start
// @license MIT
// ==/UserScript==
(function () {
"use strict";
function md5(string, bit = 32) {
function md5_RotateLeft(lValue, iShiftBits) {
return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits));
}
function md5_AddUnsigned(lX, lY) {
var lX4, lY4, lX8, lY8, lResult;
lX8 = (lX & 0x80000000);
lY8 = (lY & 0x80000000);
lX4 = (lX & 0x40000000);
lY4 = (lY & 0x40000000);
lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF);
if (lX4 & lY4) {
return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
}
if (lX4 | lY4) {
if (lResult & 0x40000000) {
return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
} else {
return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
}
} else {
return (lResult ^ lX8 ^ lY8);
}
}
function md5_F(x, y, z) {
return (x & y) | ((~x) & z);
}
function md5_G(x, y, z) {
return (x & z) | (y & (~z));
}
function md5_H(x, y, z) {
return (x ^ y ^ z);
}
function md5_I(x, y, z) {
return (y ^ (x | (~z)));
}
function md5_FF(a, b, c, d, x, s, ac) {
a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_F(b, c, d), x), ac));
return md5_AddUnsigned(md5_RotateLeft(a, s), b);
};
function md5_GG(a, b, c, d, x, s, ac) {
a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_G(b, c, d), x), ac));
return md5_AddUnsigned(md5_RotateLeft(a, s), b);
};
function md5_HH(a, b, c, d, x, s, ac) {
a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_H(b, c, d), x), ac));
return md5_AddUnsigned(md5_RotateLeft(a, s), b);
};
function md5_II(a, b, c, d, x, s, ac) {
a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_I(b, c, d), x), ac));
return md5_AddUnsigned(md5_RotateLeft(a, s), b);
};
function md5_ConvertToWordArray(string) {
var lWordCount;
var lMessageLength = string.length;
var lNumberOfWords_temp1 = lMessageLength + 8;
var lNumberOfWords_temp2 = (lNumberOfWords_temp1 - (lNumberOfWords_temp1 % 64)) / 64;
var lNumberOfWords = (lNumberOfWords_temp2 + 1) * 16;
var lWordArray = Array(lNumberOfWords - 1);
var lBytePosition = 0;
var lByteCount = 0;
while (lByteCount < lMessageLength) {
lWordCount = (lByteCount - (lByteCount % 4)) / 4;
lBytePosition = (lByteCount % 4) * 8;
lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition));
lByteCount++;
}
lWordCount = (lByteCount - (lByteCount % 4)) / 4;
lBytePosition = (lByteCount % 4) * 8;
lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition);
lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
return lWordArray;
};
function md5_WordToHex(lValue) {
var WordToHexValue = "", WordToHexValue_temp = "", lByte, lCount;
for (lCount = 0; lCount <= 3; lCount++) {
lByte = (lValue >>> (lCount * 8)) & 255;
WordToHexValue_temp = "0" + lByte.toString(16);
WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length - 2, 2);
}
return WordToHexValue;
};
function md5_Utf8Encode(string) {
string = string.replace(/\r\n/g, "\n");
var utftext = "";
for (var n = 0; n < string.length; n++) {
var c = string.charCodeAt(n);
if (c < 128) {
utftext += String.fromCharCode(c);
} else if ((c > 127) && (c < 2048)) {
utftext += String.fromCharCode((c >> 6) | 192);
utftext += String.fromCharCode((c & 63) | 128);
} else {
utftext += String.fromCharCode((c >> 12) | 224);
utftext += String.fromCharCode(((c >> 6) & 63) | 128);
utftext += String.fromCharCode((c & 63) | 128);
}
}
return utftext;
};
var x = Array();
var k, AA, BB, CC, DD, a, b, c, d;
var S11 = 7, S12 = 12, S13 = 17, S14 = 22;
var S21 = 5, S22 = 9, S23 = 14, S24 = 20;
var S31 = 4, S32 = 11, S33 = 16, S34 = 23;
var S41 = 6, S42 = 10, S43 = 15, S44 = 21;
string = md5_Utf8Encode(string);
x = md5_ConvertToWordArray(string);
a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
for (k = 0; k < x.length; k += 16) {
AA = a; BB = b; CC = c; DD = d;
a = md5_FF(a, b, c, d, x[k + 0], S11, 0xD76AA478);
d = md5_FF(d, a, b, c, x[k + 1], S12, 0xE8C7B756);
c = md5_FF(c, d, a, b, x[k + 2], S13, 0x242070DB);
b = md5_FF(b, c, d, a, x[k + 3], S14, 0xC1BDCEEE);
a = md5_FF(a, b, c, d, x[k + 4], S11, 0xF57C0FAF);
d = md5_FF(d, a, b, c, x[k + 5], S12, 0x4787C62A);
c = md5_FF(c, d, a, b, x[k + 6], S13, 0xA8304613);
b = md5_FF(b, c, d, a, x[k + 7], S14, 0xFD469501);
a = md5_FF(a, b, c, d, x[k + 8], S11, 0x698098D8);
d = md5_FF(d, a, b, c, x[k + 9], S12, 0x8B44F7AF);
c = md5_FF(c, d, a, b, x[k + 10], S13, 0xFFFF5BB1);
b = md5_FF(b, c, d, a, x[k + 11], S14, 0x895CD7BE);
a = md5_FF(a, b, c, d, x[k + 12], S11, 0x6B901122);
d = md5_FF(d, a, b, c, x[k + 13], S12, 0xFD987193);
c = md5_FF(c, d, a, b, x[k + 14], S13, 0xA679438E);
b = md5_FF(b, c, d, a, x[k + 15], S14, 0x49B40821);
a = md5_GG(a, b, c, d, x[k + 1], S21, 0xF61E2562);
d = md5_GG(d, a, b, c, x[k + 6], S22, 0xC040B340);
c = md5_GG(c, d, a, b, x[k + 11], S23, 0x265E5A51);
b = md5_GG(b, c, d, a, x[k + 0], S24, 0xE9B6C7AA);
a = md5_GG(a, b, c, d, x[k + 5], S21, 0xD62F105D);
d = md5_GG(d, a, b, c, x[k + 10], S22, 0x2441453);
c = md5_GG(c, d, a, b, x[k + 15], S23, 0xD8A1E681);
b = md5_GG(b, c, d, a, x[k + 4], S24, 0xE7D3FBC8);
a = md5_GG(a, b, c, d, x[k + 9], S21, 0x21E1CDE6);
d = md5_GG(d, a, b, c, x[k + 14], S22, 0xC33707D6);
c = md5_GG(c, d, a, b, x[k + 3], S23, 0xF4D50D87);
b = md5_GG(b, c, d, a, x[k + 8], S24, 0x455A14ED);
a = md5_GG(a, b, c, d, x[k + 13], S21, 0xA9E3E905);
d = md5_GG(d, a, b, c, x[k + 2], S22, 0xFCEFA3F8);
c = md5_GG(c, d, a, b, x[k + 7], S23, 0x676F02D9);
b = md5_GG(b, c, d, a, x[k + 12], S24, 0x8D2A4C8A);
a = md5_HH(a, b, c, d, x[k + 5], S31, 0xFFFA3942);
d = md5_HH(d, a, b, c, x[k + 8], S32, 0x8771F681);
c = md5_HH(c, d, a, b, x[k + 11], S33, 0x6D9D6122);
b = md5_HH(b, c, d, a, x[k + 14], S34, 0xFDE5380C);
a = md5_HH(a, b, c, d, x[k + 1], S31, 0xA4BEEA44);
d = md5_HH(d, a, b, c, x[k + 4], S32, 0x4BDECFA9);
c = md5_HH(c, d, a, b, x[k + 7], S33, 0xF6BB4B60);
b = md5_HH(b, c, d, a, x[k + 10], S34, 0xBEBFBC70);
a = md5_HH(a, b, c, d, x[k + 13], S31, 0x289B7EC6);
d = md5_HH(d, a, b, c, x[k + 0], S32, 0xEAA127FA);
c = md5_HH(c, d, a, b, x[k + 3], S33, 0xD4EF3085);
b = md5_HH(b, c, d, a, x[k + 6], S34, 0x4881D05);
a = md5_HH(a, b, c, d, x[k + 9], S31, 0xD9D4D039);
d = md5_HH(d, a, b, c, x[k + 12], S32, 0xE6DB99E5);
c = md5_HH(c, d, a, b, x[k + 15], S33, 0x1FA27CF8);
b = md5_HH(b, c, d, a, x[k + 2], S34, 0xC4AC5665);
a = md5_II(a, b, c, d, x[k + 0], S41, 0xF4292244);
d = md5_II(d, a, b, c, x[k + 7], S42, 0x432AFF97);
c = md5_II(c, d, a, b, x[k + 14], S43, 0xAB9423A7);
b = md5_II(b, c, d, a, x[k + 5], S44, 0xFC93A039);
a = md5_II(a, b, c, d, x[k + 12], S41, 0x655B59C3);
d = md5_II(d, a, b, c, x[k + 3], S42, 0x8F0CCC92);
c = md5_II(c, d, a, b, x[k + 10], S43, 0xFFEFF47D);
b = md5_II(b, c, d, a, x[k + 1], S44, 0x85845DD1);
a = md5_II(a, b, c, d, x[k + 8], S41, 0x6FA87E4F);
d = md5_II(d, a, b, c, x[k + 15], S42, 0xFE2CE6E0);
c = md5_II(c, d, a, b, x[k + 6], S43, 0xA3014314);
b = md5_II(b, c, d, a, x[k + 13], S44, 0x4E0811A1);
a = md5_II(a, b, c, d, x[k + 4], S41, 0xF7537E82);
d = md5_II(d, a, b, c, x[k + 11], S42, 0xBD3AF235);
c = md5_II(c, d, a, b, x[k + 2], S43, 0x2AD7D2BB);
b = md5_II(b, c, d, a, x[k + 9], S44, 0xEB86D391);
a = md5_AddUnsigned(a, AA);
b = md5_AddUnsigned(b, BB);
c = md5_AddUnsigned(c, CC);
d = md5_AddUnsigned(d, DD);
}
if (bit == 32) {
return (md5_WordToHex(a) + md5_WordToHex(b) + md5_WordToHex(c) + md5_WordToHex(d)).toLowerCase();
}
return (md5_WordToHex(b) + md5_WordToHex(c)).toLowerCase();
}
const reg = /\/live.*?\.ts/;
let baseURL = "https://dtliving-sz.dingtalk.com/live/";
const getRealUrl = (url, token) => {
const result = url.match(reg);
if (result) {
const path = result[0];
// 这里加 2 秒延迟，防止和网页播放器冲突
const timestamp = Math.floor(Date.now() + 2000 / 1e3);
const sign = md5(`${path}${timestamp}${token}`);
return `${url}&ding_token=${timestamp}-${sign}`;
}
};
// 保存原生 WebSocket 引用
const OriginalWebSocket = window.WebSocket;
// 覆盖全局 WebSocket 构造函数
window.WebSocket = function (url, protocols) {
// 创建原生 WebSocket 实例
const socket = new OriginalWebSocket(url, protocols);
// 监听 message 事件
socket.addEventListener("message", function (event) {
const data = JSON.parse(event.data);
if (data.body?.playbackToken) {
const m3u8 = data.body.content.split("\n");
for (let i = 0; i < m3u8.length; i++) {
if (!m3u8[i].startsWith("#")) {
m3u8[i] = getRealUrl(`${baseURL}${m3u8[i]}`, data.body.playbackToken);
}
}
const url = URL.createObjectURL(new Blob([new TextEncoder("utf-8").encode(m3u8.join("\n"))]));
window.postMessage({ action: "catCatchAddMedia", url: url, href: location.href, ext: "m3u8" });
}
});
// send方法中获取 baseURL
const originalSend = socket.send;
socket.send = function (data) {
const _data = JSON.parse(data);
if (_data.body && _data.body[0] && _data.body[0]?.playbackUrl) {
const url = _data.body[0].playbackUrl;
const index = url.lastIndexOf("/");
baseURL = url.substring(0, index) + "/";
}
originalSend.call(this, data);
};
return socket;
};
// 保持原型链完整
WebSocket.prototype = OriginalWebSocket.prototype;
WebSocket.CONNECTING = OriginalWebSocket.CONNECTING;
WebSocket.OPEN = OriginalWebSocket.OPEN;
WebSocket.CLOSING = OriginalWebSocket.CLOSING;
WebSocket.CLOSED = OriginalWebSocket.CLOSED;
})();
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