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摘要：，，本文介绍了关于某翻译平台翻译接口逆向工程的学习内容，并涉及到webpack的相关知识。通过学习翻译接口的逆向技术，可以深入了解接口的工作原理和实现方式。webpack作为一种前端资源构建和打包工具，能够帮助优化开发流程和提升项目效率。本文旨在分享如何结合两者进行学习，以更好地理解和应用相关技术。
逆向网址
aHR0cHM6Ly9mYW55aS55b3VkYW8uY29tLw==
逆向链接
aHR0cHM6Ly9mYW55aS55b3VkYW8uY29tLyMv逆向接口
aHR0cHM6Ly9kaWN0LnlvdWRhby5jb20vd2VidHJhbnNsYXRl逆向过程
请求方式
POST
逆向参数
sign c168e4cb76169e90f82d28118dbd24d2
接口请求结果解密
过程分析
根据XHR断点方式可快速进入发包内容
跟栈到如下位置处
设置条件断后释放掉xhr断点
e.url.indexOf( '/webtranslate' ) != -1
断点处开始跟栈，发现如下关键点
C = (e,t)=>(0,
a.H)("https://dict.xxxx.com/webtranslate", (0,
o.A)((0,
o.A)({}, e), k(t)), {
headers: {
"Content-Type": "application/x-www-form-urlencoded"
}
}) 
【e】 【k(t)】构成请求体
function k(e, t) {
const n = (new Date).getTime();
return {
sign: S(n, e),
client: u,
product: d,
appVersion: p,
vendor: g,
pointParam: m,
mysticTime: n,
keyfrom: f,
mid: h,
screen: A,
model: v,
network: b,
abtest: T,
yduuid: t || "abcdefg"
}
}
//关键位置点
S(n, e),
function S(e, t) {
return _(`client=${u}&mysticTime=${e}&product=${d}&key=${t}`)
}
function _(e) {
return r.createHash("md5").update(e.toString()).digest("hex")
} 由方法【_】分析出来 参数【sign】为md5方式加密
验证加密
方法 _ 打上断点进行调试
由此可知为标准md5方式加密
解密定位
跟栈可追踪到如下位置
var s = (n(97815),
, r = n(91565)
N = (e,t,n)=>{
if (!e)
return null;
const o = s.alloc(16, y(t))
, a = s.alloc(16, y(n))
, i = r.createDecipheriv("aes-128-cbc", o, a);
let c = i.update(e, "base64", "utf-8");
return c += i.final("utf-8"),
c
} function y(e) {
return r.createHash("md5").update(e).digest()
} 由此可知为【AES】
// key const o = s.alloc(16, y(t)) // iv const a = s.alloc(16, y(n))
代码扣取
向上查找 r 定义位置
var o = n(58788) , a = n(95457) , r = n(91565) , i = n(91250) , s = (n(97815), n(25507), n(48287)["Buffer"]);
可看出该方式为 webpack
加载器定位
定位加载器关键词
e[o].call(r.exports, r, r.exports, n),
上述位置断点断住后，刷新页面或点击底部输出结果可直接跳转至函数定义处
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, Ue = (0,
s.Fv)('母语润色服务全新上线
- 专业译员随时待命
- 最快1分钟返回精准译文
重构加载器
重新构建将加载器函数导出即可使用
(function( e ) {
function n(o) {
var a = t[o];
if (void 0 !== a)
return a.exports;
var r = t[o] = {
id: o,
loaded: !1,
exports: {}
};
return e[o].call(r.exports, r, r.exports, n),
r.loaded = !0,
r.exports
}
_util = n;
}
)({
}); 坑1：加载器中检测
var t = {};
// 必须
n.g = function() {
if ("object" === typeof globalThis)
return globalThis;
try {
return this || new Function("return this")()
} catch (e) {
if ("object" === typeof window)
return window
}
}()
// 必须
n.nmd = function(e) {
return e.paths = [],
e.children || (e.children = []),
e
} 坑2：加载方法返回空对象
79838: function() {},
15340: function() {}, *** 这两个方法存在于加载器中， 被我提取到加载方法内部
最终版加载器
var _util;
(function( e ) {
var t = {};
function n(o) {
var a = t[o];
if (void 0 !== a)
return a.exports;
var r = t[o] = {
id: o,
loaded: !1,
exports: {}
};
return e[o].call(r.exports, r, r.exports, n),
r.loaded = !0,
r.exports
}
n.g = function() {
if ("object" === typeof globalThis)
return globalThis;
try {
return this || new Function("return this")()
} catch (e) {
if ("object" === typeof window)
return window
}
}()
n.nmd = function(e) {
return e.paths = [],
e.children || (e.children = []),
e
}
_util = n;
}
)({
79838: function() {},
15340: function() {},
});
提取代码
r = n(91565)
那么到这里基本就结束了。
只需将上面webpack适配下 即可实现扣代码模块
本人比较喜欢扣，所以就存在所谓的坑1，坑2。 以及最终构建出来的加载器。
如果你比较喜欢一把梭哈，那么就不存在以上问题
结果测试
加密
///
// sign
// ------
// r.createHash("md5").update(e.toString()).digest("hex")
var md5HashUtil = _util( 47108 )( 'md5' )
console.log( md5HashUtil.update( '1' ).digest("hex") )
解密
///
// aes
function y(e) {
var md5Util = _util( 47108 )( 'md5' )
return md5Util.update(e).digest()
}
t = 'xxxxx'
n = 'xxxxx'
var aesUtil = _util( 48287 ).Buffer
o = aesUtil.alloc(16, y(t) )
a = aesUtil.alloc(16, y(n) )
i = _util( 91565 ).createDecipheriv("aes-128-cbc", o, a);
let c = i.update( "Z21kD9ZK1ke6ugku2ccWu4n6eLnvoDT0YgGi0y3g-v0B9sYqg8L9D6UERNozYOHqnYdl2efZNyM6Trc_xS-zKtfTK4hb6JP8XwCzNh0avc8qItQUiIU_4wKKXJlIpvMvfKvJaaZzaX6VEtpkr2FdkfoT_Jgbm2GRSVj3r40autIdlImENG8hC0ZH4ww7utwuTt3Oo_ZpXg0BSq9wePSAB75-ChkiGKF9HTIPeCl2bl84SBD1XDfFCZpkKQhecYSs0JLoXOqP2ltavxRrg58Hp1q5uIgZZ_Oo2-Jmd-t1r4es40drcAq5bjmS62M2VJF8D6ojtOh9JTfNwgzD3CxYn-Pd7-TgHMyNEJEkFXTAyxzpjlFqtrCYDE3SZUYlENkqsL8Wrra1hM-1n TfiB-BLcWAdRBynNpP5_54aq_-GBsq8bB_9yEX5ovzDB4_Ry_spVVuUnb39iplMHCdCnjOD3ngiIDbl9SUz-9n pjBX05ZYRdPmFPAl424qdoaxeVqnVoH8jQFPZVqaHMzu4mJg0SICDWFH7GP1zqGRbXd3ESjT_iBInl3gICt2XVuhh_nubcELkTEC6xbqEDRQkPUNMpzXJHjcvsLHtcmSW0S9F0445ho9kT2qZYdMBC3Fs0OaHpUtFu77gZpQn7sGiqh8VliXIcUtfvvop-1 c-Vu5QjfUbLn2-s5POR9fGYG6rt6ioe_PGmwWj-Cc00zUM7FybfarKTr4D3Rk57R72qpXN4Ja86ZsCAMmDG-m5z31RQh_V7echJ8Kna3Go3yWKCK4vtSwOWrFhiS5RTz6EkrGc3SkFKbb5vp8Wop_84myBtgnBmj4CczhTq2HcOxrJf4def6yDt2uBxyv4bTVGx9Yx3uB4Gx0iK5kYvfma6B_LnkRWk331wjuXKQtBGYIuWkR8J5QtvBmIRVaa7AA19Z4xMIEAqbcuQ5p4I9FCElthBrJd9YOcouHK4U27xxYWJJXcJoTvzG7zWtiV76fHDeQLgAWvJJ7ww4NFgjhqc6AKA_2afxa4c_lAvVZgFuKL3XSCL7PfKxp6GhjcGKeSRr80PT1gfFw2xi8X4ejjNm_prsUZ", "base64", "utf-8");
c += i.final("utf-8"),
console.log( c ) 
参数刨析
加密参数：${t} //
解密参数：t //实际为aes key
解密参数：n //实际为aes iv
以上三个参数均由另外一个接口请求的来 以上问题请看下篇文章分解：某翻译平台翻译接口逆向之加解密参数刨析
文章版权声明：除非注明，否则均为VPS857原创文章，转载或复制请以超链接形式并注明出处。
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