挖洞遇到验证码那些事
本帖最后由 wangguang 于 2023-8-11 17:12 编辑# 前言
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文章搭配视频地址：[挖洞遇到验证码那些事](https://b23.tv/SFVSkKk)
# 正文
输入手机号码与账号密码登录的接口都有滑块。区别在于账号密码登录的时候有个加盐密码。流程比手机号码的接口复杂一下，为了省时间。此文章便是根据手机号码的接口去写的，毕竟咱的目的是过滑块嘛。
## 发包逻辑分析
每次刷新验证码，都会发四个数据包下来。第一个数据包用于请求图片。图片链接的拼接就是urlParams加上imgs的值。
第三个数据包是背景图
第四个数据包是缺口图片
正确拼接验证码，短信验证码发送成功
captcha_signature在刷新验证码发下来的数据包里面的sign参数。
captcha_phrase和captcha_ticket在getTicket接口从服务器返回回来的，captcha_phrase是缺口，如果缺口对齐失败的话captcha_ticket是获取不到的。所以得先把getTicket接口的参数补齐拿到ticket。
getTicket的前五个参数直接从getPreHandle接口返回的urlParams获取。
phrase直接用搜索大法就能搜到关键位置
```
phrase: (x) + ";" + inity + ";" + opt.width + ";" + opt.height
```
x是缺口识别的x轴,opt.width和opt.height是固定的值
inity也是直接在js文件一搜就能拿到他的关键代码。data.data.inity在getPreHandle接口里面的inity。这段代码就是取那个inity相除相乘再拼接到phrase里头
```
inity = (data.data.inity / 195 * opt.height);
```
x直接就是缺口识别然后减去15(因为图片实际大小跟他在网页上面的大小不一样)，懒得缩小了。因为通过训练相同的图片跟缺口其x就相差15，直接减更方便(懒人做法)
图片缺口识别代码：
```
def detect_captcha_gap(bg, tp):
'''
bg: 背景图片
tp: 缺口图片
return:空缺距背景图左边的距离
''' # 读取背景图片和缺口图片
bg_img = cv2.imread(bg) # 背景图片
tp_img = cv2.imread(tp) # 缺口图片
# 识别图片边缘
bg_edge = cv2.Canny(bg_img, 100, 200)
tp_edge = cv2.Canny(tp_img, 100, 200)
# 转换图片格式
bg_pic = cv2.cvtColor(bg_edge, cv2.COLOR_GRAY2RGB)
tp_pic = cv2.cvtColor(tp_edge, cv2.COLOR_GRAY2RGB)
# cv2.imwrite("bg_style.png",bg_pic) # 保存背景轮廓提取
# cv2.imwrite("slide_style.png",tp_pic) # 保存滑块背景提取
# 缺口匹配
res = cv2.matchTemplate(bg_pic, tp_pic, cv2.TM_CCOEFF_NORMED)
min_val, max_val, min_loc, max_loc = cv2.minMaxLoc(res)# 寻找最优匹配
th, tw = tp_pic.shape[:2]
tl = max_loc# 左上角点的坐标
# 返回缺口的左上角X坐标
br = (tl + tw, tl + th)# 右下角点的坐标
cv2.rectangle(bg_img, tl, br, (0, 0, 255), 2)# 绘制矩形
cv2.imwrite("result_new.png", bg_img)# 保存在本地
# 返回缺口的左上角X坐标
return tl
x = detect_captcha_gap("bg.jpg","tp.jpg")-15
```
mobile加密就是一个rsa加密，没有任何混淆跟难点。
验证码校验接口还有个hexin-v参数
# hexin-v硬扣
校验验证码的数据包里面有个加密的header参数hexin-v,他跟cookie的v是一模一样的。有两种方法可以找到关键加密位置，第一种是headers hook,第二种是cookie hook。
cookie hook代码：
```
(function () {
'use strict';
var cookieTemp = "";
Object.defineProperty(document, 'cookie', {
set: function (val) {
console.log('Hook捕获到cookie设置->', val);
if (val.indexOf('v') != -1) {
debugger;
}
cookieTemp = val;
return val;
},
get: function () {
return cookieTemp;
}
});
})();
```
在控制台输入hook的代码
断点断了下来。回溯堆栈找到关键代码加密的地方
w函数便是设置cookie的函数，r就是v加密生成返回的值。那么qn.update()就是v生成的函数了。把断点下到qn.update()那一行然后刷新。由于这个网站的js文件是动态生成的，所以需要重新进入新的js文件在qn.update()那一行重新下个断点刷新。
断点断下之后进入qn.update()看看里面写了啥
进入到qn.update()函数内部可以看出他返回了另外一个函数的返回值。
把断点断到R函数这一行进入到R函数内部。
R函数往E对象里面压入一堆值。找找E在哪里生成的。
E对象是在b函数里面被赋值的，但因作用域的原因，他并不是在这里声明的，E声明的地方还得往上面去找。
在945行找到E声明的地方，同时也发现了这一段大的函数是一个自执行的函数。
开始扣代码，就只扣需要的代码，R()是v加密后的值，R函数里面有E对象，E对象是在b函数里面被实例化的。b函数也扣下来，b函数里面调用了C函数。C函数也一并扣下来。因为E对象是全局作用域，其声明的代码在几个函数的外面。
```
var o = r, i = r, u = e, c = e, s = parseInt(Kn(n, e, t), t), f = n, v = r, l = e, p = n, d = parseInt(t, t), h = parseInt(n, n), g = n, m = parseInt(e, n), w = parseInt(n, e), I = parseInt(e, t), _ = parseInt(e, e), y = parseInt(n, n), A = parseInt(e, t), E;
function C() {
var r = Wn.getCookie(On) || $n.get(Pn);
if (r && r] == parseInt(n, t)) {
var e = Qn.decode(r);
if (e && (E.decodeBuffer(e),
E != n))
return
}
E = Gn.random()
}
function b() {
var t = e
, a = parseInt(e, e)
, o = r
, u = parseInt(e, e);
E = new Un(),
E = Gn.serverTimeNow(),
C(),
E = Dn,
E = xn,
E = n,
E = Gn.strhash(navigator.userAgent),
E = Yn.getBrowserFeature(),
E = Yn.getPlatform(),
E = Yn.getBrowserIndex(),
E = Yn.getPluginNum()
}
function R() {
var n = Y;
E++,
E = Gn.serverTimeNow(),
E = Gn.timeNow(),
E = Dn,
E = Jn.getMouseMove(),
n = q,
E = Jn.getMouseClick(),
E = Jn.getMouseWhell(),
E = Jn.getKeyDown(),
E = Jn.getClickPos().x,
E = Jn.getClickPos().y;
var t = E.toBuffer();
return Qn.encode(t)
}
console.log(R())
```
代码运行报错，r未定义。那么e,t,n是否也是未定义。在浏览器运行一下看看是什么呢
在控制台打印r,e,t,n。发现他们都是大数组。直接扣下来就行了
```
var n=["xi", "n-", "v", "ai", ".", "get", "kie", "; d", "\x1c)Aw\x1b", "3", "ced", "strT", "rigi", "]V8a", "w", "l", Array, "Map", Function, 58, "ttpR", "Feb 2050", "fZ,\x19", "\x15\x18;", "", 9527, 256, String, "head", 0, 1, "al", "Coo", 92, 81, !1, window, "a", 86, "le", "\u2559\u253e", "^{", "th", / /g, "10", RegExp, '^".*"$', "\u255b\u0972", "ready", "1200000", "script", "src", "sj.", 56, "ad", "readyState", 14, "\u2545\u0978\u095b\u09f5\u09a9\u090e\u099a\u09d0\u0980\u09d8", "n*.z", document, Date, "i", "[@", 85, "@", "object", "status_code", "location", "TX5TL^9[", "length", 5, 32, "\u2544\u2530\u2542\u252a\u254b\u2538\u2550", "random", "L^;PvX!", "addEventListener", !0, "onwheel", "O_3PT", "*6?v", "rra", " gs\x19?", "\u2543\u252b", "x arm", "\u2541\u0961\u097b\u09ff\u09b4", "\x15t", "Po", "\x1a+FrJ", 22, 12, 34, "KV", "maxHeight", "\u2576\u2515\u2561\u2508\u257e\u251b\u2543\u250c\u256e\u2504\u2561\u2502\u2576", 7, "Object", "opr", "QQBrowser", "%TuD4", "\u2554\u0975\u0948\u09fe\u09bd\u0938", "iso-8859-1", "defaultCharset", 23, "ng", "zh-cn", "language", "Native Client", "^Android", "plugins", "mroftalPteg", 10, 11, "13", "16", "74", "[^\\r\\n]", "*)\\r?$", "\u255b\u253d", "Fri, 01 ", "error", "", "^\x16FyT", "allow", "sredaeh", "headers", "it", 95, 60, encodeURIComponent, 46, "PE3S", "#", "host", "0\x1a)_", "g", "Wi", "prototype", "0 GMT", "/", "`z\x1a}lc\x06", 15, "^", "_raw", "CHAMELEON_LOADED"],
t = ["du", "oma", "ie", RegExp, "proto", "base", "enc", 79, "ode", "und", 4, 28, "Domain", "mUrl", 40, "hee", "\u2573\u0952\u0977\u09dc\u09bf\u0928\u099d", 57, "ri", "t", "Acti", "th", "gin", "\\.", "\x18B", Array, !0, "v", "X-Antispider-Message", "11", "s.thsi.cn", 1, document, "", 2333, 0, String, "003", "Thu, 01 Jan 1970 00:00:00 GMT", "location", "protocol", "enon=etisemas ;", "; secure=true", "fH-&", "co", "ok", 16, "=", "delCookie", "^", window, !1, 94, "\u256c\u093c\u0918\u09b2\u09f4\u0978\u09c8\u0996\u09dc\u0994\u09e8\u099a\u0994\u0992\u09ea\u0a4d\u0a26\u09e6\u09f6\u096c\u091e\u09a2\u09be\u09aa\u0998\u0920\u090c\u0911\u0a73\u0981\u09bb\u092f\u09b1", "g", 'KR"', "htmlfile", "ducument", "led", "length", "7", "\u255b\u253e\u2550\u2537\u2543\u252b", 8, "eds", "ff", "001", "\u2551\u097b", 2, "|AX", ":]", "es", "oDec", 13, "//s.thsi.cn/js/chameleon/time.1", "onerror", "\\N\x05", "uy\x1et", "\u255e\u2530\u2544\u2521\u2553\u2532\u2551\u2525\u254c\u253a\u255f", "onload", "1000", "\\.com\\.cn$|\\.com\\.hk$", 3, "10", "{2,}([^\\/\\", "fk%\x1f\x10\bl]LC&F\x07\r\x7f\nd\x18-\x07\x14J~nfkyi\x07kuidj}\x1c", ":", "redi", "href", "redirect_url", "on", "parse", "getServerTime", 59, "\u2556\u2538\u2559\u2535\u254c\u253f\u2556\u2525\u2577\u2504\u2570", "isIPAddr", "eventBind", "onmo", "wesu", "IA`\\", "\u255a\u2535\u2540", "sew", "ell", "isTrusted", "clientX", "getMouseMove", '_R"xWB%P{[?VS', "a", "32", "4gCD", "^iP", "\u2579\u250c\u2561", "callPhantom", "ActiveXObject", "vendor", "i", "Maxthon", "chrome", "\x1f2}e", "}\x1a", "\u2562\u2520\u2552\u253d\u254a\u2539\u255c\u252e", "P\\erk", "msDoNotTrack", "20", "as", "webgl2", "name", "bjec", "\u2576\u097e\u094e\u09f8\u09a6\u0938\u09b6\u09fe\u0996\u09d7\u09a7\u09d2\u09cc", "mroftalp", "$8", "111100000", Date, "\u2569\u253e\u2557\u2539\u250f\u253b", "x\x17r]v", "f^\x06]WY3", 95, 10, "hos", "ow", "\x18\x07f\x0f\b\x07l\x05", "open", "Y[:", "getAllResponseHeaders", "error", "fetch", "type", "toString", "headers", "ement", "se", "\u2569\u2501\u2575\u2501\u2571\u2502\u253d\u2561\u255b", "\u2543\u2522\u2550\u2537\u2552\u2526", "#", "target", "\u255b\u0978\u0954\u09f6\u09a4\u0935", "HE9AWT9Y", "apply", "or", "JbD}p", "124f80", "CHAMELEON_LOADED"],
r =["he", "lo", "om", ".*", "State", "\u2545\u2520\u2543\u2537", "la;\x19!", "erTi", 65, Array, 19, "t", "veXO", "bjec", 73, "\u2559\u096b", String, "Shock", "^W", "in", "ow", "$", "su", Function, RegExp, "thsi.cn", "", 2333, document, "w", "In", !0, "3ca", "s.c", "hostname", ":sptth", "0033cas.cn", 1, "; path=", "=", 0, "length", "document", window, "37", "_fil", "prototype", "toBuffer", "l%\x16}", "\u2553\u0978\u0959\u09fe\u09b4\u0938\u09ac\u09c4\u0992\u09db\u09a7\u09c3", "\u255b\u0978\u0954\u09f6\u09a4\u0935", 8, 3, "01", "ff", 16, "<A`", 5, "\u2504\u097b", 6, 2, "edocnE46esab", "\u2552\u0979", "A=!", "\u2552\u2534\u255d", "tps?:))?\\/", "f", "bool", "serv", "ng", "}$", "d&", ":", "9~", "protocol", Date, "\x0fSf", "onreadystatechange", "complete", null, 10, ".", "^\\s*(?:(ht", "h", "edoc_sutats", "3e8", "3e9", "1111101010", "iFy\x16", "^(\\d+\\.)+\\d+$", "(c7'^", 72, "heel", 31, "div", "hM", "mousemove", "\u255c\u2539\u2540\u2524\u254b\u253c\u2552", 'QD\x02GMD"P\\', "getKeyDown", "getClickPos", "ActiveX", "3'ha", "^Linu", "ad", "teg", "\u257a\u0972\u0940\u09c2\u09b5\u0929\u099a\u09d8\u099a\u09da\u09b1\u09f4\u09ce\u09d8\u09d8\u0a65", "Uin", "ActiveXObject", "31", 'yT"\\', "WeakMap", "Google Inc.", "Apple Computer, Inc.", "python", "sgAppName", "i", "Q", "y8.", "mT%\x1e", "2345Explorer", "chrome", "MSGesture", "e", "1", "doNotTrack", !1, "8t\x1a>", "languages", "TR8RL_", "PDF|Acrobat", "ShockwaveFlash.ShockwaveFlash", "^MacIntel", "^Linux \\d+", "getBrowserIndex", "getBrowserFeature", "Init", "MG2TLR", "[ \\t]*(", 62, "\u2544\u2536\u2555\u2510\u257c", "bm", "^(.*?):", "304", "gm", "otorp", "url", "headers", 42, "6p\x15i", "click", "parentNode", "tagName", "A", "\\?", "&", "?", "src", "analysisRst", "insertBefore", 76, "XMLH", "_str"],
e=[".b", "\u2550\u2524\u254c", "type", "gth", "2", Date, "\u2507", "rea", "?\\#\\\\]+)", "oByt", '_R"gWX"', 95, "getO", "imal", "\u2552\u094e\u0959\u09e3\u09bf\u0931\u0982", "\u2551\u2530", "Weak", "roid", "i^", "plug", "ins", "1", "ts", "\u2552\u096f\u0948", "\u255f\u253a\u2542\u252b\u2545\u2568\u251e", "CHAMELEON_CALLBACK", 2, 0, RegExp, "\u2544\u0972\u0914\u09e5\u09b8\u092e\u0987\u099f\u0997\u09d3", "head", 1, "", "V587", "it", "\u2554\u0975\u095f\u09f2\u09bb\u093e\u0981\u09de\u099f\u09d4\u09a7", "\u2556\u0971\u0956\u09fe\u09a7", "in=", "location", window, "=", "; expires=", "setCookie", 9, "; ", "#default#userData", "___$&", "qY?A", "div", "body", "documentElement", "0mU", "\u2550\u2535\u2541", "base_fileds", 44, "len", "length", "18", 10, 12, 6, 16, "\u2506\u092c\u090b\u09a0\u09e1\u096c\u09df\u0980", "83", "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_", "22", 94, "error", "o\x1f", "nFro", "\u255a\u253f\u2571\u251e", "11111111111111111111111111111111", "\x14", ":", 7, "onload", "5\x1e${T", 'LV"', "1750", 8, "_url", "ex\x19=", "getHostFromUrl", "\u2550\u0978\u094e\u09dc\u09bf", "useWh", document, "touchmove", "click", "clientY", "y", "el", "ng", "OXev", "wave", "Plu", "~)l!", 26, "veXO", "bjec", "postMessage", "t8A", "\u2541\u0978\u0954\u09f5\u09bf\u092f", "chrome", "BIDUBrowser", "LBBROWSER", "mMR", "\u2554\u0975\u0948\u09fe\u09bd\u0938", "Q", "2X", "TheWorld", "plugins", "ca", "ontouchstart", "navigator", "OR4QJ^ PJ", "KN%A]Z\x1aTVP#T_R", !1, "i", "localStorage", "^ARM", "^BlackBerry", 3, "\u2506\u2536\u2506", "1100", "14", "17", "10001", "10", "100", "me", "eque", " l", "renetsiLtnevEdda", "^@tuh", "jsonp_ignore", Object, "headers", "base", "^_", "target", "ferh", "PV%]", "unload", "tagName", "SCRIPT", "dlihCdneppa", "tna", "?", "\\.", "$", "11", "nd", "tcejbOXevitcA", "Init"];
```
运行报window，document未定义。在开头定义一下为空对象
```
var window ={}
var document={}
```
运行报Kn未定义
把断点下到报错代码那一行，进去Kn函数内部
```
function Kn() {
var r = arguments];
if (!r)
return t;
for (var a = e, o = n, i = n; i < r.length; i++) {
var u = r.charCodeAt(i)
, c = u ^ o;
o = u,
a += n.fromCharCode(c)
}
return a
}
```
运行报错Y未定义。
浏览器查看Y是字符串“1”，直接在代码中写固定就行
报这个错的原因是因为没有调用b函数，在R函数的开头调用运行一下b函数。
对象实例化Un函数是未定义的。去浏览器扣。
浏览器扣下来的Un函数
```
var Un = function() {
var a = r
, o = r;
function i(a) {
this] = a;
for (var o = r, i = a]; o < i; o++)
this = n
}
return i]] = function() {
for (var o = t, i = this], u = [], c = -n, s = n, f = i, t)]; s < f; s++)
for (var v = this, l = i, p = c += l; u = v & parseInt(a + o, t),
--l != e; )
--p,
v >>= t;
return u
}
,
i, r, x)] = function(a) {
for (var i = t, u = this, c = t, s = n, f = u, r)]; s < f; s++) {
var v = u
, l = r;
do {
l = (l << r) + a
} while (--v > n);this = l >>> e
}
}
,
i
}()
```
运行报Xn未定义，分析代码的作用是把函数赋给对象，那么i后面跟着的肯定是字符串，把函数赋给某某对象原型链下面的某个属性。
替换即可。
运行报Gn未定义，直接进入Gn.serverTimeNow()函数内部查看写了什么。
浏览器扣下来的代码，看看这段代码有什么作用。
```
function cn() {
var n = (s,
u,
new v);
return typeof TOKEN_SERVER_TIME == x + T + C ? I : (time = parseInt(TOKEN_SERVER_TIME),
time)
}
```
cn函数有一个三元表达式，TOKEN_SERVER_TIME是数值，x + T + C是"undefined"，TOKEN_SERVER_TIME == x + T + C 是false
所以执行(time = parseInt(TOKEN_SERVER_TIME),time)
这段函数的整体意思是将TOKEN_SERVER_TIME取整赋值给time，再把time值返回。
E = Gn.serverTimeNow()直接改写成E = parseInt(TOKEN_SERVER_TIME)
运行代码报错TOKEN_SERVER_TIME未定义，在浏览器搜索TOKEN_SERVER_TIME。
在第一行就可以看到TOKEN_SERVER_TIME。直接扣下来
运行报错Wn未定义。这段C函数代码要是直接去扣就入坑了，先看看这个C函数有什么作用。
第一行代码就是取cookie名为v的值，如果没取到cookie的v值就去取headers的"hexin-v"值。
```
var r = Wn.getCookie(On) || $n.get(Pn);
```
一般情况下都不是第一次运行，那么他就会取得到前面cookie的v值。那么下面的if判断就会成立，就会执行。但是我们总不可能每次运行代码都去取他前面的cookie，那实在是太复杂了。假设，我是说假设。假设我每一次进去这个网站都是第一次，都取不到cookie的v值和headers的hexin-v。那么这段代码又是有什么样的作用呢。
cookie的v和headers的hexin-v都取不到值的话那么if里面的就是null。就直接执行后面的代码
最后C函数的代码就是直接改写成E = Gn.random()
运行报错,直接扣Gn.random()
```
function rn() {
var n = sn;
return n = G,
Math.random() * parseInt("11111111111111111111111111111111", 2) >>> 0
}
```
C函数可以值改写成
```
E =Math.random() * parseInt("11111111111111111111111111111111", 2) >>> 0
```
Dn报错
Dn是数值0
xn未定义
xn是数值3
报了Gn的错。分析这段代码就是把浏览器指纹ua传进了strhash函数。可以直接取最后的值写固定。
```
E = 自己浏览器头strhash后的值
```
后面的报错都是这几个值未定义。
getBrowserFeature—>获得浏览器特性
getPlatform—>获取浏览器平台
getBrowserIndex—>获取当前网页所在浏览器的索引
getPluginNum—>获取当前网页或浏览器环境中已安装或可用的插件数量。
至于改写的话直接取最后的值就行了
b函数都改完之后到R函数报错了。Gn.serverTimeNow()在b函数就已经扣过了
Gn.serverTimeNow()—>parseInt(TOKEN_SERVER_TIME)
Gn.timeNow()未定义
进入Gn.timeNow()函数内部是个on函数
on函数的作用就是取当前时间戳除以1000再无符号右移0位
改写后的代码
```
E = Date.now()/ 1000
```
后面的代码都是未定义的
Dn是数值0，n是字符串"DOMMous"
getMouseMove—>获取鼠标当前的横坐标和纵坐标
getMouseClick—>获取鼠标点击时的横坐标和纵坐标，以及所点击的按钮
getMouseWhell—>获取滚轮事件的信息
getKeyDown—>获取按键事件的信息
getClickPos—>获取鼠标点击的坐标，然后进行相应的操作，比如记录点击位置或者根据点击位置执行特定的逻辑。
直接取最后运行完的值
运行Qn.encode未定义
进入函数内部Qn对象总共有4个方法，直接把Qn对象补齐.
```
var Qn;
!function(a) {
var o = e
, i = n
, u = n
, c = r;
function s(a) {
var o, i, u;
o = i = u = t;
var c, s, f;
c = s = f = r;
var v, p, d;
v = p = d = e;
var h, g, m;
h = g = m = n;
for (var w = g, I = (en,
on,
a]), _ = []; w < I; ) {
var y = l << parseInt(p, v) | l << d | l << v | l;
_.push(y >> parseInt(Vn(f, Tn), d), y >> c & parseInt(Xn(X, p), g), y & parseInt(u, h))
}
return _
}
function f(n, t, a, i, u) {
for (var c = n; t < c; )
a = n ^ u & parseInt(r, e),
u = ~(u * parseInt(e, r))
}
for (var v = e, l = {}, p = n; p < parseInt(Vn(t, r), r); p++)
l = p;
function d(n) {
for (var a = r, o = t, i = n]; o < i; o++)
a = (a << r) - a + n;
return a & parseInt(Xn(q, t, In), e)
}
function h(r) {
var e = d(r)
, a = ;
return f(r, +n, a, +t, e),
g(a)
}
function g(a) {
for (var o = r, u = (G,
i,
a]), c = []; o < u; ) {
var s = a << parseInt(b + R, r) | a << r | a;
c.push(v.charAt(s >> parseInt(e, n)), v.charAt(s >> parseInt(n, t) & parseInt(Xn(e, r, S), e)), v.charAt(s >> r & parseInt(B + i, t)), v.charAt(s & parseInt(n, r)))
}
return c.join(Vn(r, n))
}
function m(n) {
var t, a, o;
t = a = o = r;
var i, u, v;
i = u = v = e;
var l = s(n);
if (l] != c)
return error = i,
void 0;
var p = l]
, h = [];
return f(l, +a, h, +i, p),
d(h) == p ? h : void 0
}
a)] = g,
a, t)] = s,
a = h,
a = m
}(Qn || (Qn = {}));
```
运行报错
在浏览器打印o+C是字符串"length"，直接替换
在浏览器打印Vn(r)是字符串"100"，直接替换
后面几个都是未定义的，在浏览器找到对应的值替换
```
a["base64Encode"] = g,
a["base64Decode"] = s,
a["encode"] = h,
a["decode"] = m
```
直接拿运行之后的结果进行替换
Xn(q, t, In)—>"ff"
G—>"w"
Xn(e, r, S)—>"3f"
B + i—>"3f"
Vn(r, n)—>""
代码再次执行，值便出来了。
带上值去请求一遍。手机验证码发送成功
# hexin-v(js-dom补环境
在网上看到一堆文章都又说直接用js-dom包补document和window两个环境。
直接把整个js文件复制下来
定义一个全局变量接受v的值,方便后面导出。
运行代码报window未定义
导包
```
const jsdom = require('jsdom')
const {JSDOM} = jsdom;
const {window} = new JSDOM(``);
```
运行代码报document未定义
```
const document = window.document
```
运行代码报navigator未定义
```
const navigator = window.navigator
```
打印值出来了，报错不用管。直接用py调用。也是成功的！
# 结尾
本文章仅供学习交流使用，如有侵权，联系我删除。
验证码这玩意，就是给正常用户和半吊子爬数据的添堵的。 liuganglove2018 发表于 2023-8-12 10:23
有这工夫，早就手动输N次验证码了有木有，后面确实看不太懂了，
那你密码总不可能手动输入验证码，几万十个密码去爆破得输多久啊。就算手输验证码去发送手机验证码也有60秒的限制 我居然从头看到尾，可还是看不懂，不明觉厉。 很有参考价值，已收藏 学到了。以后必有大用 还是蛮有用的 特别是给用户添堵{:1_918:} 你这是真的“硬”扣 最近有想法学目前只会post 请求，get请求 前面还好现在后面有点看不懂了，以前还能看懂点 从头看到尾，难度越来越大