京东联盟h5st(3.1)逆向分析

本文主要是介绍京东联盟h5st(3.1)逆向分析，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

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网址：'aHR0cHM6Ly91bmlvbi5qZC5jb20vcHJvTWFuYWdlci9pbmRleA=='

h5st是京东系的反爬方式，即在接口中加上一个叫h5st的参数，h5st加密有不同的版本。本文提到的网站不是京东网站，是和京东有关联的一个网站，也有h5st参数，是3.1版本。

分析接口

要分析的是一个‘全部商品’接口，找到接口后先分析必要的参数。逐个分析可以发现必要的参数有headers中的origin和user-agent；cookies中的thor，以及params

很容易发现 headers和params中的functionId、appid、loginType是固定值，_是时间戳

需要参数来源的是cookies中的thor；params中的uuid、x-api-eid-token、h5st以及body中的searchUUID

再进一步分析会发现thor、uuid和x-api-eid-token都来源于cookies，分别对应thor、__jdu和3AB9D23F7A4B3CSS

没必要较劲他的什么时候产生的，哪个接口返回的，直接写死得了

所以我们重点要逆向的是h5st和searchUUID

逆向参数

h5st在源代码中位置倒是挺少，点进去打上断点跟代码，你会发现，等到了断点处，h5st的值已经产生了

怎么定位到具体的代码位置是在是个难点，唯有大胆猜测小心求证，逐步调试，观察作用域中参数值的变化

这里直接上结果：

searchUUID是一个随机字符串，每次切换页面时会变化，很好抠，也可以固定；

body先经过加密得到一个64位字符串，然后和其他的字符串拼接组成了h5st

body加密的位置：

body: K()(k()(i)).toString()

h5st加密的位置：

var D = this["__genSignP" + d(0, 1516, 1351)](z, c, a, r);

至此我们可以再去看一下h5st的组成：

h5st: 20240226121601029;1733260139752348;586ae;tk03w04801dbb18nDfQXSjnTtkviyKrnh_npbbTrMXmrKSOfOfS6hSPJmKG_uyEocdAqBwHSNZYf4R8HHwT9MJBgpgyG;ac2846635dfb61c405b4ee623bccd274eb35866e3a3e9195013f2eeeb72f2db6;3.1;1708920961029;24c9ee85e67cf80746dd82817ecbeafc7a829b35c7f446a4c7d476cc9faa1d8834a93323ad7bce9bef1bba682b93d2e355076cc27b11bb228be53f32ed20565266eae147141141e0d154463e1733333213609f805a4de2ddf29a06541f6bb9892b80989b96d4724a0aaba834467cab40debef3f59396c2874c1a5d3ee361ffc6//  yyyyMMddhhmmssSSS格式的日期字符串
20240226121601029;
//  浏览器指纹  跟浏览器有关 可以是固定值
1733260139752348;
//  appID 固定值
586ae;
//  token 应该是某个接口的返回值  可以是固定值
tk03w04801dbb18nDfQXSjnTtkviyKrnh_npbbTrMXmrKSOfOfS6hSPJmKG_uyEocdAqBwHSNZYf4R8HHwT9MJBgpgyG;
//  加密字符串  跟body有关  需破解
ac2846635dfb61c405b4ee623bccd274eb35866e3a3e9195013f2eeeb72f2db6;
//  h5st版本号  固定值
3.1;
//  时间戳
1708920961029;
//  跟环境相关 可以是固定值
24c9ee85e67cf80746dd82817ecbeafc7a829b35c7f446a4c7d476cc9faa1d8834a93323ad7bce9bef1bba682b93d2e355076cc27b11bb228be53f32ed20565266eae147141141e0d154463e1733333213609f805a4de2ddf29a06541f6bb9892b80989b96d4724a0aaba834467cab40debef3f59396c2874c1a5d3ee361ffc6

所以接下来就重点抠出h5st中第5段字符串的加密即可

成果展示

const CryptoJS = require('crypto-js');
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}({78249: function (t, n, e) {var i;t.exports = (i = i || function (t, n) {var i;if ("undefined" != typeof window && window.crypto && (i = window.crypto),"undefined" != typeof self && self.crypto && (i = self.crypto),"undefined" != typeof globalThis && globalThis.crypto && (i = globalThis.crypto),!i && "undefined" != typeof window && window.msCrypto && (i = window.msCrypto),!i && void 0 !== e.g && e.g.crypto && (i = e.g.crypto),!i)try {i = e(42480)} catch (t) {}var r = function () {if (i) {if ("function" == typeof i.getRandomValues)try {return i.getRandomValues(new Uint32Array(1))[0]} catch (t) {}if ("function" == typeof i.randomBytes)try {return i.randomBytes(4).readInt32LE()} catch (t) {}}throw new Error("Native crypto module could not be used to get secure random number.")}, s = Object.create || function () {function t() {}return function (n) {var e;return t.prototype = n,e = new t,t.prototype = null,e}}(), o = {}, u = o.lib = {}, f = u.Base = {extend: function (t) {var n = s(this);return t && n.mixIn(t),n.hasOwnProperty("init") && this.init !== n.init || (n.init = function () {n.$super.init.apply(this, arguments)}),n.init.prototype = n,n.$super = this,n},create: function () {var t = this.extend();return t.init.apply(t, arguments),t},init: function () {},mixIn: function (t) {for (var n in t)t.hasOwnProperty(n) && (this[n] = t[n]);t.hasOwnProperty("toString") && (this.toString = t.toString)},clone: function () {return this.init.prototype.extend(this)}}, h = u.WordArray = f.extend({init: function (t, n) {t = this.words = t || [],this.sigBytes = null != n ? 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});function ts2format(ts) {const date = new Date(ts);const y = date.getFullYear(),m = String(date.getMonth() + 1).padStart(2, '0'),d = String(date.getDate()).padStart(2, '0'),h = String(date.getHours()).padStart(2, '0'),mi = String(date.getMinutes()).padStart(2, '0'),s = String(date.getSeconds()).padStart(2, '0'),ms = String(date.getMilliseconds()).padStart(3, '0')return `${y}${m}${d}${h}${mi}${s}${ms}`;
}function body(obj) {const F = wp(52153),K = wp.n(F),args_str = JSON.stringify(obj)return K()(args_str).toString()
}function secret_str() {var rd = '4LP439v0MSSD';var str = "".concat(_token).concat(_fp).concat(_td).concat(_appId).concat(rd);return CryptoJS.SHA256(str).toString(CryptoJS.enc.Hex);
}function encrypt_data(r, i) {function convertToQueryString(data) {return data.map(item => `${item.key}:${item.value}`).join('&');}const c = convertToQueryString(i)return CryptoJS.HmacSHA256(c, r).toString(CryptoJS.enc.Hex)
}function h5st(p) {const b = body(p)const jsonArray = [{"key": "appid","value": "unionpc"},{"key": "body","value": b},{"key": "functionId","value": "unionSearch"}]const secret = secret_str()const _encrypt = encrypt_data(secret, jsonArray)const dt = "".concat(_td),fp = "".concat(_fp),appId = "".concat(_appId),tk = "".concat(_token),encrypt = "".concat(_encrypt),version = "".concat(_version),ts = "".concat(_ts),unknown = "".concat(_unknown)return [dt, fp, appId, tk, encrypt, version, ts, unknown].join(";")
}e = {"funName": "search","version": "v3","source": 20310,"param": {"pageNo": 2,"pageSize": 60,"searchUUID": "e7fb274ce31247e689982c7375d29f5e","bonusIds": null,"category1": null,"category2": null,"category3": null,"deliveryType": null,"wlRate": null,"maxWlRate": null,"fromPrice": null,"toPrice": null,"hasCoupon": null,"isHot": null,"isNeedPreSale": null,"isPinGou": null,"isZY": null,"isCare": null,"lock": null,"orientationFlag": null,"sort": null,"sortName": null,"keyWord": "","searchType": "st3","keywordType": "kt0"},"clientPageId": "jingfen_pc"
}
hs = h5st(e)
console.log("h5st:", hs);

import json
import requests
import execjsthor = ''
_jdu = ''
_3AB9D23F7A4B3CSS = ''url = "https://api.m.jd.com/api"
headers = {"Accept": "application/json, text/plain, */*","origin": "https://union.jd.com","Referer": "https://union.jd.com/","X-Referer-Page": "https://union.jd.com/proManager/index","user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36"
}
cookies = {"thor": thor}class UnionJD:def __init__(self):self.js_code = execjs.compile(open('unionJD.js', 'r', encoding='utf-8').read())def get_params(self, page):params = {"functionId": "unionSearch","appid": "unionpc","loginType": "3","uuid": _jdu,"x-api-eid-token": _3AB9D23F7A4B3CSS}body = {"funName": "search","version": "v3","source": 20310,"param": {"pageNo": page,"pageSize": 60,"searchUUID": "e47cfeb25c054a5886ca6f63449b0093","bonusIds": None,"category1": None,"category2": None,"category3": None,"deliveryType": None,"wlRate": None,"maxWlRate": None,"fromPrice": None,"toPrice": None,"hasCoupon": None,"isHot": None,"isNeedPreSale": None,"isPinGou": None,"isZY": None,"isCare": None,"lock": None,"orientationFlag": None,"sort": None,"sortName": None,"keyWord": "","searchType": "st3","keywordType": "kt0"},"clientPageId": "jingfen_pc"}h5st = self.js_code.call('h5st', body)ts = h5st.split(';')[6]params['_'] = tsparams['h5st'] = h5stparams['body'] = json.dumps(body)return paramsdef request_data(self, page):params = self.get_params(page)response = requests.get(url, headers=headers, cookies=cookies, params=params)return responseif __name__ == '__main__':u = UnionJD()p = u.request_data(1)print(p.text)print(p.status_code)