浙大表单鉴权流程(2025/11版)

水一篇blog。

浙大表单拿到ticket后的鉴权,是访问https://form.zju.edu.cn/dfi/validateLogin?ticket=[Redacted]&service=https%3A%2F%2Fform.zju.edu.cn%2F%23%2Fv2%2FhomePage用ticket换token,ticket之前是直接传的,现在改了。

查阅代码找到:

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var r = Object(u["a"])("encode", e, "zntb666666666666")
, i = "/dfi/validateLogin?ticket=" + r + "&service=" + t

在watch处加一个u["a"]看到这个函数来自

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"Oh/x": function(e, t, a) {
"use strict";
a.d(t, "a", (function() {
return c
}
));
var n = a("aqBw")
, r = a.n(n)
, i = a("NFKh")
, o = a.n(i);
function s(e, t) {
var a = o.a.AES.decrypt(e, o.a.MD5(t), {
iv: [],
mode: o.a.mode.ECB,
padding: o.a.pad.Pkcs7
})
, n = a.toString(o.a.enc.Utf8);
return n.toString()
}
function l(e, t) {
var a = o.a.enc.Utf8.parse(e)
, n = o.a.AES.encrypt(a, o.a.MD5(t), {
iv: [],
mode: o.a.mode.ECB,
padding: o.a.pad.Pkcs7
});
return n.toString()
}
function c(e, t, a) {
return t = "encode" == e ? r.a.encode(l(t, a)) : s(r.a.decode(t), a),
t
} // <---- HERE
},

也就是Base64(AES_enc(ticket, MD5("zntb666666666666")))