爬取问财网的今日涨停信息
载荷多试几次可以发现除了页码等信息，都是固定值，因此变化一定是在请求头
可以发现变化的就是HeXin-V的值，并且在cookie中也有对应的键值对，所以下一步就是找到该值生成的位置。
因为Cookie中有这个值，所以可以通过Cookie Hook的方式来定位
(function(){
'use strict'
var _cookie = "";
Object.defineProperty(document, 'cookie', {
set: function(val) {
console.log(val);
debugger
_cookie = val;
return val;
},
get: function() {
return _cookie;
},
});
})()
在开头直接打断点，然后在控制台运行这个Hook函数，该函数的作用是每当设置Cookie值时，会加断点
找到v值设置的地方，通过调用堆栈找到具体的函数
最后发现生成这个值的地方是这个D()函数，因为生成方式较为复杂，所以直接通过js代码的方式来实现。
两种思路，一种是需要什么找什么，一种是全部代码拿过来，不需要什么删什么。
无论是哪种思路，都要模拟嵌套生成函数所在的层级。
document对象和window对象在这个案例中会用到，但是后台程序执行没有这两个对象，因此做一个简单的补环境
因为需要执行这个函数，所以把他设置成全局的，然后在全局执行
报了这个错误，一般这种错误，可以找到代码对应的位置，打印附近的变量
发现是与document相关的，我们用node来执行程序，没有window对象和document对象，因此涉及到这两个报错的，一般可以删除或者略过
这个也相同，但是不能直接删除，因为涉及到了其他变量，发现in这个关键字，因此可以置为[]
同上可直接删除
一般不是undefined的错误，都有一定的原因
可以发现S对象调用之前，并不知道是在哪声明的
网上找发现S是由P这个函数来声明的，所以在此之前，一定在某个地方执行了P函数
因此可以直接执行一次P函数
这个地方报错，去打断点看一下附近的变量
可以看出这个还是与document有关，是设置Cookie值的，因此直接删除掉这个隔离函数
可以发现，下面有一个random函数，点进去看就是一个随机值，所以上面的一系列操作都可以删除
这一系列值都是和浏览器相关的东西，可以在控制台打印，是固定的值，进行替换
最终获取该值
js代码
var TOKEN_SERVER_TIME = 1721028932.734;
// 补环境 ---------------------------------------------------------------------------------------
var document={}
var window={}
// 全局对象 --------------------------------------------------------------------------------------
var target=this
!function(n,t){
var r, e, a;
r = e = a = n;
var u, c, s;
u = c = s = t;
function v() {
var n = arguments[s[0]];
if (!n)
return r[0];
for (var t = u[1], o = a[1], i = c[2]; i < n.length; i++) {
var v = n.charCodeAt(i)
, f = v ^ o;
o = v,
t += e[2].fromCharCode(f)
}
return t
}
var f = c[3]
, l = s[4]
, p = Wn(e[3], r[4], s[5])
, d = a[5]
, h = Wn(c[6], s[7])
, g = c[8]
, w = c[9]
, m = r[6]
, I = u[10]
, y = a[7]
, _ = (s[11],
c[12],
s[13])
, C = e[8]
, E = u[14]
, A = ot(e[9], e[10])
, b = a[11]
, T = u[15]
, B = c[16]
, R = r[12]
, k = r[13]
, S = s[17]
, P = u[18]
, M = Wn(s[19], s[20], u[21])
, O = v(s[22], e[14])
, D = s[23]
, x = s[24]
, N = u[25]
, L = u[26]
, W = Wn(s[27], r[15])
, F = u[28]
, Y = r[16]
, j = a[17]
, H = e[18]
, $ = e[19]
, U = r[20]
, V = v(c[29], e[21], e[22])
, X = s[30]
, G = s[31]
, K = s[32]
, Q = s[33]
, Z = r[23]
, q = r[24]
, z = v(u[12], u[34], s[35])
, J = u[36]
, nn = a[25]
, tn = s[37]
, rn = c[38]
, en = r[26]
, an = c[39]
, on = s[40]
, un = a[27]
, cn = u[41]
, sn = ot(s[42], c[43])
, vn = r[28]
, fn = u[8]
, ln = s[44]
, pn = a[29]
, dn = s[45]
, hn = a[30]
, gn = c[46]
, wn = a[31]
, mn = a[32]
, In = s[47]
, yn = r[33]
, _n = a[34]
, Cn = c[48]
, En = a[8]
, An = v(a[35], s[49])
, bn = c[50]
, Tn = c[51]
, Bn = at(r[36], s[52])
, Rn = ot(r[37], e[38])
, kn = e[39]
, Sn = u[53]
, Pn = r[40]
, Mn = s[54]
, On = s[55]
, Dn = Wn(u[56], r[41], r[42])
, xn = r[43]
, Nn = u[57]
, Ln = e[44];
function Wn() {
return arguments[u[0]].split(e[0]).reverse().join(c[1])
}
var Fn = r[45], Yn = Wn(c[58], e[46]), jn = v(s[59], u[60]), Hn = Wn(r[47], s[61]), $n = s[62], Un = s[63], Vn = u[2], Xn = [new u[27](r[48]), new u[27](c[64])], Gn = [new e[47](ot(a[49])), new u[27](ot(a[50], u[65]))], Kn = c[66][f + l] , Qn;
// !function(n) {
// n[e[53]] = s[67];
// function t(n) {
// var t = r[51][u[68]]
// , o = u[69] + n + s[70]
// , i = t.indexOf(o);
// if (i == -e[54]) {
// if (o = n + c[70],
// t.substr(r[52], o.length) != o)
// return;
// i = a[52]
// }
// var f = i + o[v(u[71], s[72])]
// , l = t.indexOf(r[55], f);
// return l == -a[54] && (l = t[a[56]]),
// t.substring(f, l)
// }
// n[a[57]] = f;
// function o(n, t, a, o, i) {
// var c = n + r[58] + t;
// o && (c += e[59] + o),
// i && (c += v(Jn, u[73], s[74]) + i),
// a && (c += u[75] + a),
// u[66][u[68]] = c
// }
// n[s[76]] = t;
// function i(n, t, r) {
// this.setCookie(n, u[1], u[77], t, r)
// }
// n[s[78]] = o;
// function f() {
// var t = a[60];
// this.setCookie(t, u[67]),
// this.getCookie(t) || (n[r[53]] = e[61]),
// this.delCookie(t)
// }
// n[Wn(N, r[62], c[79])] = i
// }(Qn || (Qn = {}));
var Zn;
var qn = function() {
var n, t, r;
n = t = r = a;
var e, o, i;
e = o = i = s;
var u = o[15]
, c = o[102]
, f = e[103];
function l(r) {
var a = o[102]
, i = e[103];
this[n[76]] = r;
for (var u = t[52], c = r[a + g + i]; u < c; u++)
this[u] = t[52]
}
return l[e[104]][w + m + I + u] = function() {
for (var a = e[105], u = this[a + y], c = [], s = -e[0], v = o[2], f = u[r[56]]; v < f; v++)
for (var l = this[v], p = u[v], d = s += p; c[d] = l & parseInt(t[77], n[78]),
--p != r[52]; )
--d,
l >>= parseInt(n[79], i[106]);
return c
}
,
l[v(t[80], t[81], b)][ot(i[107])] = function(n) {
for (var r = e[8], a = this[ot(e[108], e[109])], o = t[52], u = e[2], s = a[c + r + f]; u < s; u++) {
var v = a[u]
, l = i[2];
do {
l = (l << t[82]) + n[o++]
} while (--v > t[52]);
this[u] = l >>> i[2]
}
}
,
l
}(), zn;
!function(n) {
var t = s[13]
, o = c[53]
, i = r[83]
, f = r[84]
, l = s[110]
, d = r[85]
, h = r[86];
function g(n, a, o, i, u) {
for (var c = s[13], v = r[87], f = n[s[111]]; a < f; )
o[i++] = n[a++] ^ u & parseInt(c + v + t + _, r[88]),
u = ~(u * parseInt(e[89], e[82]))
}
function w(n) {
for (var t = c[112], i = r[52], v = n[s[111]], f = []; i < v; ) {
var l = n[i++] << parseInt(C + t, c[113]) | n[i++] << e[82] | n[i++];
f.push(m.charAt(l >> parseInt(e[90], e[82])), m.charAt(l >> parseInt(s[114], e[78]) & parseInt(a[91], r[88])), m.charAt(l >> u[59] & parseInt(E + o, a[78])), m.charAt(l & parseInt(a[92], u[113])))
}
return f.join(e[0])
}
for (var m = at(u[115], s[116]), I = {}, y = u[2]; y < parseInt(i + A, e[93]); y++)
I[m.charAt(y)] = y;
function O(n) {
var t, r, e;
t = r = e = s;
var o, i, u;
o = i = u = a;
for (var c = ot(i[94]), l = e[2], p = n[o[56]], d = []; l < p; ) {
var h = I[n.charAt(l++)] << parseInt(at(t[117]), u[82]) | I[n.charAt(l++)] << parseInt(v(t[118], u[95], e[119]), o[88]) | I[n.charAt(l++)] << t[59] | I[n.charAt(l++)];
d.push(h >> parseInt(e[120], t[106]), h >> parseInt(t[121], r[122]) & parseInt(f + b + c, t[106]), h & parseInt(o[96], u[88]))
}
return d
}
function D(n) {
var t = O(n);
if (rn,
p,
t[r[52]] != h)
return error = T + B + l,
void 0;
var a = t[c[0]]
, o = [];
return g(t, +parseInt(e[79], c[122]), o, +u[2], a),
x(o) == a ? o : void 0
}
function x(n) {
var t = o;
t = Vn;
for (var e = c[2], i = a[52], u = n[c[111]]; i < u; i++)
e = (e << s[123]) - e + n[i];
return e & parseInt(s[124], r[88])
}
function N(n) {
var t = et
, r = x(n)
, e = [h, r];
return g(n, +a[52], e, +a[88], r),
t = P,
w(e)
}
n[e[97]] = w,
n[R + k + S] = O,
n[u[125]] = N,
n[d + P + M] = D
}(zn || (zn = {}));
var Jn;
!function(n) {
var t = Fn
, o = at(c[126], a[98])
, i = r[99]
, f = v(U, u[127])
, l = s[128]
, p = ot(a[100])
, d = r[5]
, h = r[101]
, g = ot(u[129])
, w = s[130]
, m = r[102]
, C = a[103]
, E = e[104];
function A(n) {
for (var t = (Tn,
I,
[]), e = r[52]; e < n[c[111]]; e++)
t.push(n.charCodeAt(e));
return t
}
function b() {
var n = new e[105];
try {
return time = s[52].now(),
time / parseInt(c[131], a[88]) >>> c[2]
} catch (t) {
return time = n.getTime(),
time / parseInt(s[121], s[84]) >>> r[52]
}
}
function T(n) {
var t = u[8]
, o = {}
, i = function(n, o) {
var i = c[102], f, l, p, d;
for (o = o.replace(s[132], u[1]),
o = o.substring(u[0], o[e[56]] - c[0]),
f = o.split(c[133]),
p = c[2]; p < f[i + t + O]; p++)
if (l = f[p].split(v(r[106], c[134])),
l && !(l[r[56]] < s[122])) {
for (d = r[88]; d < l[r[56]]; d++)
l[r[54]] = l[r[54]] + r[107] + l[d];
l[s[2]] = new r[47](c[135]).test(l[e[52]]) ? l[a[52]].substring(u[0], l[e[52]][D + x] - c[0]) : l[a[52]],
l[r[54]] = new a[47](c[135]).test(l[r[54]]) ? l[e[54]].substring(s[0], l[a[54]][a[56]] - u[0]) : l[s[0]],
n[l[c[2]]] = l[e[54]]
}
return n
};
return new r[47](e[108]).test(n) && (o = i(o, n)),
o
}
function B(n) {
var t, e, a;
t = e = a = c;
var u, s, v;
if (u = s = v = r,
typeof n === ot(s[109], sn) && n[Wn(y, a[136], s[110])])
try {
switch (parseInt(n[e[137]])) {
case parseInt(a[131], t[122]):
break;
case parseInt(v[111], s[78]):
top[e[138]][v[112]] = n[t[139]];
break;
case parseInt(u[113], e[122]):
top[o + i + N][e[140]] = n[s[114]];
break;
default:
break
}
} catch (f) {}
}
function R(n, t, r) {
var e, a, o;
e = a = o = u,
q ? n.addEventListener(t, r) : n.attachEvent(a[25] + t, r)
}
function k() {
return Math.random() * parseInt(u[141], r[78]) >>> r[52]
}
function S(n, t) {
var o = en
, i = new r[47](e[115],a[116]);
o = T;
var s = new u[27](v(p, r[117], m));
if (n) {
var f = n.match(i);
if (f) {
var l = f[u[0]];
return t && s.test(l) && (l = l.split(r[118]).pop().split(r[107])[c[2]]),
l
}
}
}
function P(n) {
var t = mn
, o = c[142]
, i = r[119]
, v = e[120]
, I = a[121];
if (!(n > e[122])) {
n = n || a[52];
var y = parseInt(u[143], e[78])
, _ = a[51].createElement(u[144]);
t = Q,
_[c[145]] = location[r[123]] + a[124] + parseInt((new r[105]).getTime() / y) + (f + o + l),
_[e[125]] = function() {
Vn = u[0],
setTimeout(function() {
P(++n)
}, n * parseInt(e[126], u[84]))
}
,
_[p + L + d] = _[s[146]] = function() {
var n, t, r;
n = t = r = a;
var e, o, u;
e = o = u = c;
var s = e[147];
this[t[127]] && this[i + W] !== o[148] && this[u[149]] !== o[150] && this[s + F + h] !== u[151] || (Vn = n[52],
_[e[152]] = _[g + w + v] = n[128])
}
,
c[66][m + I].appendChild(_)
}
}
function M(n) {
var t, e, a;
t = e = a = r;
var o, i, u;
return o = i = u = s,
new u[27](t[129]).test(n)
}
function X() {
var n = new s[52];
return typeof TOKEN_SERVER_TIME == s[153] ? r[52] : (time = parseInt(TOKEN_SERVER_TIME),
time)
}
function G(n) {
var t, e, a;
t = e = a = s;
var o, i, u;
o = i = u = r;
for (var c = u[52], v = a[2], f = n[o[56]]; v < f; v++)
c = (c << a[123]) - c + n.charCodeAt(v),
c >>>= o[52];
return c
}
function K(n) {
var t = new s[27](e[130],s[80]);
if (n) {
return n.match(t)
}
}
function Z(n) {
var t = new u[27](c[154]);
if (M(n))
return n;
var o = t.test(n) ? -a[86] : -parseInt(r[79], e[88]);
return (tn,
_,
n.split(s[155])).slice(o).join(a[131])
}
n[Y + C + j] = T,
t = En,
n[c[156]] = P,
n[ot(u[157])] = B,
n[r[132]] = A,
n[c[158]] = G,
n[c[159]] = k,
n[r[133]] = M,
n[s[160]] = Z,
n[E + H] = S,
n[$ + U] = K,
n[s[161]] = z,
n[s[162]] = b,
n[r[134]] = X;
var q = !!a[65][a[135]];
function z(n) {
for (var t = v(O, u[163]), a = e[136], o = s[2], i = n[V + t + a] - s[0]; i >= r[52]; i--)
o = o << r[54] | +n[i];
return o
}
n[u[164]] = R
}(Jn || (Jn = {}));
var nt;
var tt;
var rt;
var et;
function at() {
var n, t, r;
n = t = r = u;
var a, o, i;
a = o = i = e;
var c = arguments[o[52]];
if (!c)
return t[1];
for (var s = o[0], v = o[1], f = a[52]; f < c.length; f++) {
var l = c.charCodeAt(f)
, p = l ^ v;
v = v * f % n[222] + o[200],
s += i[2].fromCharCode(p)
}
return s
}
function ot() {
var n, t, e;
n = t = e = c;
var a, o, i;
a = o = i = r;
var u = arguments[a[52]];
if (!u)
return o[0];
for (var s = a[0], v = n[267], f = o[200], l = t[2]; l < u.length; l++) {
var p = u.charCodeAt(l);
f = (f + t[0]) % v.length,
p ^= v.charCodeAt(f),
s += i[2].fromCharCode(p)
}
return s
}
var it;
var rt;
!function(n) {
var t = e[87], o = a[8], i = e[8], f = s[215], l = r[52], p = s[0], d = parseInt(c[216], u[122]), h = e[86], g = u[217], w = u[123], m = e[165], I = parseInt(t + En, c[122]), y = parseInt(a[79], a[82]), _ = c[218], C = parseInt(a[193], e[82]), E = parseInt(o + i, r[78]), A = parseInt(u[219], s[122]), b = parseInt(f + An, s[106]), T = parseInt(r[194], s[106]), B = parseInt(ot(s[220], e[195]), r[82]), R = parseInt(e[196], u[122]), k = parseInt(e[197], a[78]), S;
function P() {
var n = s[0]
, t = r[88]
, e = parseInt(u[13], c[122])
, a = s[217];
S = new qn([a, a, a, a, n, n, n, e, t, t, t, t, t, t, t, a, t, n]),
S[p] = Jn.serverTimeNow(),
M(),
S[B] = Vn,
S[k] = Un,
S[R] = c[2],
S[h] = "4173916359",
S[b] = "3748",
S[g] = "1",
S[w] = "10",
S[m] = "5"
}
function M() {
// var n = Qn.getCookie(Fn) || Zn.get(jn);
// if (n && n[s[111]] == parseInt(c[221], e[93])) {
// var t = zn.decode(n);
// if (t && (S.decodeBuffer(t),
// S[l] != s[2]))
// return
// }
//模拟第一次游客登陆 ---------------------------------------------------------------------------------------------
S[l] = Jn.random()
}
function O() {
S[R]++,
S[p] = Jn.serverTimeNow(),
S[d] = Jn.timeNow(),
S[B] = Vn,
S[I] = "440",
S[y] = "1",
S[_] = "0",
S[C] = "0",
S[E] = "1011",
S[A] = "25";
var n = S.toBuffer();
return zn.encode(n)
}
n[e[57]] = P;
// ---------------------------------------------------------------------------------------------------------------------------------
P()
function D() {
return O()
}
target.num = D
n[v(an, a[198], r[199])] = D
}(rt || (rt = {}));
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console.log(target.num())
Python代码
import json
import requests
from functools import partial
import subprocess
subprocess.Popen = partial(subprocess.Popen, encoding="utf-8")
import execjs
url = "https://music.163.com/weapi/song/enhance/player/url/v1?csrf_token="
headers={
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36",
"Cookie":"_ntes_origin_from=baidu; NMTID=00O1BewknX9OrvdWUx7kQCT6cTK11sAAAGQV1NK7g; _ntes_nnid=38ff67cd14bb267d681cf98d3b53e2c5,1719451994914; _ntes_nuid=38ff67cd14bb267d681cf98d3b53e2c5; WEVNSM=1.0.0; WNMCID=caxlvt.1719451995209.01.0; WM_NI=g666XKuwXzvFGgiCF6nqqq9HdQWRQo38yTH84zq6aW8v7QudhqOZArGhIqThkVg4AXWTZCY5GwtgRHr0MAJ7qhIizl7jiw0xuQPsPr2AlCXxsgK5mriDxy%2BglqXlYeL7emY%3D; WM_NIKE=9ca17ae2e6ffcda170e2e6eed8d27392bb96dae27288b88fa7d45e928b8b86d24b9592e5bab340bab597d1f92af0fea7c3b92aa5eafad7db41b7a9989bf54e85b9a7a4c53eaeafbf92bc44a88f99b3d465f1e8b7b5cb34f8a6bfd7e45dfcaaf9b2f870acaf81bbc47a85b88792d764a98aa9d5c454958c96a4dc3f85a9bc88d144b2f083a2c93db3b8878af968f5b6a798b374b78fa094d37af29fa4a4db74b1b985d6f07aab9cb89aaa6db0af988ddc6f90e9ab8edc37e2a3; WM_TID=HPe7Itd%2FDTJAERBQUReDRSI%2BIhtmhZk2; sDeviceId=YD-P35wvxtjE8VBQ1EQEEOAgizRYyVWV2DZ; ntes_utid=tid._.h1gWdlstPMFEFkUUBRfWQHNvI15njExW._.0; _iuqxldmzr_=32; JSESSIONID-WYYY=rxQaCoF2OPajb4tMYpVseIb%5CJXRZU0e7ebOWYPFanAynmZd8wk2FOhW11W%2Fn4Vb%2Fjkrr6HO2cl2S8fgsFZ%5CI1%2F%2BI1whkzZZ4NWYSm4voA1I7p8FE4waKZg1s7g5l3Ez%5C6jgsWzC5R%2FxAxQT3CCstRZN5Fxq8AX9jvMbfYFx7Whbo6iaP%3A1719469671276; playerid=83544972",
}
# 构建载荷所需参数
music_id = 1347227968
song_info = {
"ids":f"[{music_id}]",
"level":"standard",
"encodeType":"aac",
"csrf_token":""
}
e='010001'
h="00e0b509f6259df8642dbc35662901477df22677ec152b5ff68ace615bb7b725152b3ab17a876aea8a5aa76d2e417629ec4ee341f56135fccf695280104e0312ecbda92557c93870114af6c9d05c4f7f0c3685b7a46bee255932575cce10b424d813cfe4875d3e82047b97ddef52741d546b8e289dc6935b3ece0462db0a22b8e7"
g='0CoJUm6Qyw8W8jud'
# js逆向 构建载荷
with open("wangyiyun.js") as f:
jscode = f.read()
js = execjs.compile(jscode)
data = (json.dumps(song_info),e,h,g)
res = js.call("jiemi",*data)
# 发送请求 获取音频地址
data = {
"params": res.get("encText"),
"encSecKey": res.get("encSecKey")
}
response = requests.post(url=url,headers=headers,data=data)
res = response.text
url = json.loads(res).get("data")[0].get("url")
# 请求音频 保存到本地
music = requests.get(url=url)
with open("a.m4a","wb") as f:
f.write(music.content)
标签：function,return,同花顺,问财,JS,parseInt,var,new,52 From： https://www.cnblogs.com/sxy-blog/p/18307534