爬虫技术-cookie反爬讲解
作者：互联网
COOkIE反爬虫
1 cookie反爬简介
Cookie 反爬虫指的是服务器端通过校验请求头中的 Cookie 值来区分正常用户和爬虫程序的手段，这种手段被广泛应用在 Web 应用中。
1.1 cookie加密原理
2 cookie逆向实践
2.1 逆向目标
-
对抗：
cookie反爬虫处理
2.2 逆向分析
- 可以发现抓取接口数据，需要携带对应的cookie才能正常获取
通过查看cookie信息发现，该cookie为服务端返回
查询发现，cookie值为每次请求首页时返回的
2.3 逆向结果
- 使用python先提取cookie，然后携带请求可以正常突破
import re
import httpx
from utils import ua
def get_ck():
url = 'http://www.zjmazhang.gov.cn/hdjlpt/published?via=pc'
res = httpx.request('GET',url)
cookie = res.cookies.get('szxx_session')
token = re.findall(r"var _CSRF = '(.*?)';",res.text)[0]
return cookie,token
def index():
c, t = get_ck()
url = 'http://www.zjmazhang.gov.cn/hdjlpt/letter/pubList'
headers = {
'user-agent': ua.FakeChromeUA.get_ua(),
'X-CSRF-TOKEN': t,
'Cookie': 'XSRF-TOKEN={};szxx_session={}'.format(t, c)
}
data = {
"offset": "0",
"limit": "20",
"site_id": "759010",
}
res = httpx.post(url,data=data,headers=headers)
if res.status_code == 200:
print(res.text)
else:
print('请求错误')
index()
3. cookie逆向实践2
3.1 逆向目标
-
接口：http://q.10jqka.com.cn/index/index/board/all/field/zdf/order/desc/page/2/ajax/1/
-
对抗：
cookie反爬虫处理，关键字v
3.2 逆向分析
3.2.1 定位关键点
- 使用hook技术，确认cookie生成位置
(function () {
Object.defineProperty(document, 'cookie', {
set: function (val) {
if (val.indexOf('v') != -1) {
debugger;
}
console.log('Hook捕获到cookie设置->', val);
return val;
}
});
})();
cookie存放的2中形式：
headers = {
cookie:'key1=value1;key2=value2;key3:value3'
}
cookie = {
'key1': 'value1',
'key2':'value2'
}
3.2.2 JS调试技巧
从这里可以发现就是整个的文件只有千多行代码，可以采用全复制方式处理cookie
注： 有很多的环境需要补，挨个补环境很麻烦，可以使用jsdom这个技术
3.3 逆向结果
点击查看代码
const jsdom = require("jsdom");
const { JSDOM } = jsdom;
const dom = new JSDOM(`<!DOCTYPE html><p>Hello world</p>`);
window=dom.window;
document=window.document;
navigator=window.navigator;
// const express = require('express');
// const app = express();
var _v = {}
var TOKEN_SERVER_TIME = 1656072000.984;
!function(n, t) {
!function() {
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] || r[51].getElementsByTagName(p + d)[r[52]], 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;
!function(n) {
var t = u[80], o = v(nn, s[81], u[82]), i = s[67], f, l = u[83][Wn(u[84], e[63])], p, d;
function g(n) {
var t = j;
return t = dn,
i ? y(n) : f ? w(n) : void u[2]
}
function w(n) {
E(function() {
return n = R(n),
f.getAttribute(n)
})()
}
function m() {
try {
return !!(o in s[83] && s[83][o])
} catch (n) {
return void u[2]
}
}
function I(n) {
try {
f.removeItem(n)
} catch (t) {}
}
n[c[85]] = C;
function y(n) {
try {
return f.getItem(n)
} catch (t) {
return u[86]
}
}
n[c[87]] = B;
function _(n, t) {
try {
f.setItem(n, t)
} catch (r) {}
}
function C() {
var n = e[64]
, r = u[88];
if (i = m(),
i)
f = a[65][o];
else if (l[at(e[66])][at(e[67], a[68])])
try {
p = new ActiveXObject(Wn(a[69], s[89], l)),
p.open(),
p.write(s[90]),
p.close(),
d = p.w[e[70]][s[2]][e[71]],
f = d.createElement(n + t + r)
} catch (c) {
f = l.createElement(o),
d = l[Wn(u[91], a[72])] || l.getElementsByTagName(s[92])[s[2]] || l[a[73]]
}
}
function E(n) {
return function() {
d.appendChild(f),
f.addBehavior(s[93]),
f.load(o);
var t = n();
return d.removeChild(f),
t
}
}
n[c[94]] = g;
function A(n) {
var t, r, e;
if (t = r = e = a,
i)
I(n);
else {
if (!f)
return void e[52];
b(n)
}
}
function b(n) {
E(function() {
n = R(n),
f.removeAttribute(n),
f.save(o)
})()
}
function T(n, t) {
E(function() {
n = R(n),
f.setAttribute(n, t),
f.save(o)
})()
}
n[a[74]] = A;
function B(n, t) {
if (void 0 === t)
return A(n);
if (i)
_(n, t);
else {
if (!f)
return void u[2];
T(n, t)
}
}
function R(n) {
var t = s[95]
, e = r[75]
, a = new r[47](t + h + e,c[96]);
return n.replace(new c[27](u[97]), v(s[98], s[99], s[100])).replace(a, c[101])
}
}(Zn || (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;
!function(n) {
var t = u[165]
, o = a[137]
, i = at(s[166], s[167])
, v = u[168]
, f = a[138]
, l = c[169]
, p = ot(s[170], B)
, d = a[52]
, h = r[52]
, g = c[2]
, w = c[2]
, m = c[2]
, I = s[2]
, y = s[67]
, _ = t + X in s[66].createElement(s[171]) ? o + G + i : s[172]in c[66] ? u[173] : v + K + f + Q;
Jn.eventBind(s[66], _, S),
Jn.eventBind(a[51], r[139], T),
Jn.eventBind(u[66], Wn(e[140], e[141], s[174]), T),
Jn.eventBind(c[66], l + Z + q, M),
Jn.eventBind(u[66], c[175], b);
function C() {
return w
}
function E() {
return d
}
function b(n) {
w++
}
function T(n) {
d++
}
function R() {
return h
}
function k() {
return g
}
function S(n) {
h++
}
function P() {
return {
x: m,
y: I,
trusted: y
}
}
function M(n) {
var t, r, e;
t = r = e = a;
var o, i, u;
o = i = u = c;
var s = (S,
A,
u[36]);
g++,
y = void 0 == n[s + z] || n[J + nn],
m = n[ot(r[142], o[84])],
I = n[i[176]]
}
n[e[143]] = E,
n[ot(e[144])] = R,
n[e[145]] = k,
n[u[177]] = C,
n[tn + p + rn] = P
}(nt || (nt = {}));
var tt;
!function(n) {
var t = e[146]
, f = c[4]
, l = c[178]
, p = u[179]
, h = r[147]
, g = r[148]
, m = e[149]
, I = s[102]
, y = v(rn, u[180], zn)
, _ = at(r[150], Y)
, C = a[151]
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}(it || (it = {}))
}()
}(["", 9527, String, Boolean, "eh", "ad", "Bu", "ileds", "1", "\b", Array, "7", "base", "64De", "\u2543\u252b", "etatS", "pa", "e", "FromUrl", "getOrigi", "nFromUrl", "\u255b\u253e", "b?\x18q)", "ic", "k", "sted", "he", "wser", "oNo", "ckw", "ent", "hst", "^And", "RM", "systemL", 5, "\u255f\u0978\u095b\u09f5", "TR8", "!'", "gth", "er", "TP", 83, "r", !0, "v", "v-nixeh", RegExp, "thsi.cn", 'K\x19"]K^xVV', "KXxAPD?\x1b[Y", document, 0, "allow", 1, "; ", "length", "Init", "=", "; domain=", "checkcookie", !1, "eikooCled", "tnemucod", "d", window, "\u2553\u0972\u0959\u09e4\u09bd\u0938\u0980\u09c5\u09b1\u09d1\u09a7\u09dc\u09dd\u09d3\u09c2", "\u2556\u0979\u095e\u09d3\u09b5\u0935\u098f\u09c7\u099d\u09d2\u09b0", 23, "l$P$~", "frames", "ducument", "ydob", "documentElement", "del", "@[\\]^`{|}~]", "base_fileds", "255", 10, "10", 39, "\u2547\u2535\u255a\u252e\u2541\u2535\u254c\u253c\u2559", 8, "4", "3", "de", 3, "11", 2, "203", "22", "111111", "3f", 16, "\x0f", "\u2506\u2537\u2507\u2537", "11111111", "base64Encode", "v\x1d", "ati", "WY", "te", "bo", "rs", "getHost", Date, "{DF", ":", "^{.*}$", "WU<P[C", 52, "1001", "href", "1111101010", "redirect_url", "^\\s*(?:https?:)?\\/{2,}([^\\/\\?\\#\\\\]+)", "i", "\u256c\u252c\u2516\u254b", "@", "ready", "change", "dy", 7, "protocol", "//s.thsi.cn/js/chameleon/time.1", "onerror", "2000", "readyState", null, "^(\\d+\\.)+\\d+$", "^\\s*(?:(https?:))?\\/{2,}([^\\/\\?\\#\\\\]+)", ".", "strToBytes", "isIPAddr", "serverTimeNow", "addEventListener", "th", "wh", "Scro", "mousemove", 55, "evomhcuot", "[[?PVC\x0e", "getMouseMove", '_R"xWB%Po_3YT', "getMouseClick", "ght", "gin", "msD", "ack", "\u2556\u096b\u095f", "Nativ", "^A", "MozSettingsEvent", "safari", "ActiveXObject", "postMessage", "Uint8Array", "WeakMap", "Google Inc.", "vendor", "chrome", "python", "sgAppName", "JX", 6, "me", "LBBROWSER", "w4", "2345Explorer", "TheWorld", "\u2544", 40, "tTr", "\u2506", "navigator", "webdriver", "languages", "taborcA|FDP", "\u2541\u097c\u0949", 95, "1e0", "e Cli", "iso-8859-1", "defaultCharset", "localStorage", "^Win64", "^Linux armv|Android", "^iPhone", "^iPad", "B_{VV", "getPluginNum", "getBrowserFeature", "12", "16", "sE", "10000", "17", "\u2542\u2532\u2556\u2537\u2543\u2526", "\x1cx`R", 2333, "XMLH", "ers", "0", "lo", 57, "ylppa", "error", "target", "click", "unload", "HE9AWT9Y", "\\.", "c?", "$", "/", "fetch", "prototype", "url", "\u2556\u0971\u0956\u09fe\u09a7", "headers", "\u256b\u2554", 79, "?", "^(.*?):[ \\t]*([^\\r\\n]*)\\r?$", "gm", "s", "src", "analysisRst", "\u255e\u0973\u0949\u09f4\u09a2\u0929\u09ac\u09d4\u0992\u09d2\u09b0\u09d4", "appendChild", "Y", "jsonp_ignore", "^", 70, "421", "XH>a", "\u2574\u253c\u257d\u2530\u2575\u2539\u257c\u2533\u257d\u2522\u256e\u2521\u2560\u2524\u2561\u2525", "CHAMELEON_LOADED"], [1, "", 0, "he", "ad", 29, "\x180G\x1f", "?>=<;:\\\\/,+", "ng", "to", "ff", Number, Error, "11", "6", "er", "ro", "code", "co", "_?L", "ed", "@S\x15D*", Object, "len", "gth", "on", "lo", RegExp, "ySta", 13, "eel", "ee", "ouse", "ll", "\u2544\u2530\u2555\u2531", "FCm-", "isTru", "getC", "Pos", "ve", "or", "ae", "^", "On", "Sho", "can", "ont", "roid", "anguage", "\u2502", "ta", "tna", Date, "3", "am", "e", "n+", "f80", "\x1dD", 6, "\u255f\u253a\u2542\u252b\u2545\u2568\u251e", "KCABLLAC_NOELEMAHC", "X-Antispider-Message", 3, ".baidu.", Function, document, !0, "cookie", "; ", "=", 96, "\u255b\u253e\u2550\u2537\u2543\u252b", "\u250c\u252c\u255c\u253d\u2549\u2521\u251c", ";O", "; expires=", "getCookie", "Thu, 01 Jan 1970 00:00:00 GMT", "setCookie", "Z\x18|", "i", "\u255b\u2534\u2557\u2536\u255a\u2509\u257d\u2512\u2560\u2501\u2566\u2503", 52, window, 10, "Init", !1, "set", "v", "eliflmth", '<script>document.w=window<\/script><iframe src="/favicon.icon"></iframe>', "iS.p", "head", "#default#userData", "get", "[!\"#$%&'()*", "g", "^d", "$D", "\u2568\u2537\u2568\u254c\u256a", "]\\P", "___", "le", "th", "prototype", "base_f", 8, "\\R5Z\\R\x14@^Q3G", "ZV%PgQ?Y]S%", 67, "r", "length", "0", 16, "12", "\u2576\u095f\u0979\u09d5\u0995\u091b\u09a9\u09f9\u09bd\u09f7\u0989\u09fd\u09f5\u09f3\u09f9\u0a41\u0a4d\u098f\u0999\u0905\u0975\u09cb\u09a9\u09a9\u099d\u0927\u0933\u0913\u0a6b\u0999\u09a3\u0937\u098b\u09f5\u0933\u0a7b\u091b\u09b1\u0a63\u095f\u09fb\u094d\u0993\u0943\u092b\u0949\u09a3\u09e7\u09cb\u0925\u0993\u09ab\u09f0\u092c\u092c\u0942\u0950\u09c8\u0944\u09c6\u0990\u0944\u09cb\u098e", "i,", "\u2505\u092f", 12, 56, "20", "1000", 2, 5, "11111111", "encode", "\u255b\u0972\u0959", "\u2519", "s", "WY$PYS", "ystate", "1111101000", / /g, ",", "\u250d", '^".*"$', "edoc_sutats", "status_code", "location", "redirect_url", "href", "4294967295", "j", "1200000", "script", "src", "onreadystatechange", "read", "loaded", "readyState", "complete", "interactive", "onload", "undefined", "\\.com\\.cn$|\\.com\\.hk$", ".", "getServerTime", 'YY7YAD?FjD"', "strhash", "random", "getRootDomain", "booleanToDecimal", "timeNow", "\u2559\u253e", "eventBind", "onwh", "\u255b", 46, "DOMM", "cl", "T^5^", "div", "onmousewheel", "mousewheel", 51, "keydown", "clientY", "getKeyDown", "ch", "plu", "\u2543\u252b", "ouc", "art", "^i", "Po", "callPhantom", "max", "Hei", "ActiveXObject", "nd", "yG&Y]\x17\x15ZUG#A]Ez\x15qY5\x1b", "\u2576\u097e\u094e\u09f8\u09a6\u0938\u09b6\u09fe\u0996\u09d7\u09a7\u09d2\u09cc", "Maxthon", "Q", "opr", "chrome", "BIDUBrowser", "QQBro", "[_$ZUR", "UBrowser", "MSGesture", "plugins", "doNotTrack", "ShockwaveFlash.ShockwaveFlash", "]C|\x18", "webgl2", "platform", "name", "^Win32", "^MacIntel", "^Linux [ix]\\d+", "^BlackBerry", "language", "getPlatform", "getBrowserIndex", "1", "10", 4, 9, "1100", "\t\0", "3c", 256, "w", "TTP", "et", "c", "al", "\u255e", "base", "\u2569\u0975\u094e\u09e5\u09a0\u092e\u09d1\u09ed\u09ce", "target", "fh%PTQr", "#", "\u255f\u097c\u0949\u09f9", 97, "rg", "tnemelEcrs", "fn_Ws", "parentNode", "tagName", "A", "submit", "PX%", "me", "host", "\\.?", "d\x19", "Fri, 01 Feb 2050 00:00:00 GMT", "]E%", "toString", "[object Request]", "headers", 83, "&", encodeURIComponent, "open", "getAllResponseHeaders", "4", "tseuqeRpttHLMX", "Window", "\u2564\u095e", "RI", "\u2550\u0953", "(YaZ", "_", "_str", "V587"]);
function get_cookie() {
return _v.xialuo()
}
console.log(get_cookie());
// app.get('/',(req, res)=>{
//
// // req 获取客户端参数 给JS
// jjs = req.query.data;
// console.log(jjs);
//
// res.send({'v':get_cookie()})
//
// })
//
//
//
//
// app.listen(8000,()=>{
// console.log('服务开启，8000')
// });
var _ss ;
const jsdom = require("jsdom");
const { JSDOM } = jsdom;
const dom = new JSDOM(`<!DOCTYPE html><p>Hello world</p>`);
window = dom.window
document = window.document
navigator = window.navigator
3.3.1 python程序模拟
# encoding: utf-8
"""
@author: 夏洛
@QQ: 1972386194
@file: ths.py
"""
import requests,execjs
# http://q.10jqka.com.cn/
with open('qq.js',encoding='utf-8') as f:
x = f.read()
v = execjs.compile(x).call('getCookie')
def get_data():
headers = {
"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
"Accept-Encoding": "gzip, deflate",
"Accept-Language": "zh-CN,zh;q=0.9,en-US;q=0.8,en;q=0.7,zh-TW;q=0.6",
"Cache-Control": "max-age=0",
"Connection": "keep-alive",
"Cookie": "v={}".format(v),
"Host": "q.10jqka.com.cn",
"Upgrade-Insecure-Requests": "1",
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.60 Safari/537.36"
}
url = 'http://q.10jqka.com.cn/index/index/board/all/field/zdf/order/desc/page/3/ajax/1/'
res = requests.get(url,headers=headers)
print(res.text)
get_data()
4. jsdom技术
参考地址：https://github.com/jsdom/jsdom/wiki/jsdom-中文文档
jsdom是一个纯粹由 javascript 实现的一系列 web标准，特别是 WHATWG 组织制定的DOM和 HTML 标准，用于在nodejs中使用。大体上来说，该项目的目标是模拟足够的Web浏览器子集，以便用于测试和挖掘真实世界的Web应用程序
4.1 环境安装
npm install jsdom --save
4.2 基本使用
const jsdom = require("jsdom");
const { JSDOM } = jsdom;
const dom = new JSDOM(`<!DOCTYPE html><p>Hello world</p>`);
title = dom.window.document.querySelector("p").textContent
console.log(title)
5. cookie逆向实战3
5.1 逆向目标
- 首页：https://sh.esfxiaoqu.zhuge.com/page2/
- 目标：cookie：
acw_sc__v2
5.2 逆向分析
直接用代码带上参数请求这个接口，发现并没有给我们数据，而是给了一段js。但是这个js可以明显的看到，set了一个cookie，acw_sc__v2，接下来就简单了，直接分析这段js就好了
5.2.1 JS还原
使用一键ob还原工具，对代码进行处理
链接：https://pan.baidu.com/s/1y5jddKB6qic_rLufNIyaXw
提取码：z5xs
- input文件夹， 存放ob混淆代码;
- output文件夹，存放还原后的代码;
- tools,存放打包的babel库以及部分还原的AST插件;
- main.js 运行主文件;
使用方式：
切换到 decodeObfuscator-main 目录，命令行模式下运行
node main.js
5.2.2 JS 调试分析
- 在浏览器里面给
arg2下个断点观察对应参数
- 找出对应的核心代码，方便后续的调试
- 老规矩，还原对应的参数和逻辑
5.3 逆向结果
5.3.1 Js还原
点击查看代码
var arg1 = 'E2CB24F3F7F7015803D65B38E2030B2ED832C29B'; // 需要去网页提取
function ss(arg1){
var _0x5e8b26 = '3000176000856006061501533003690027800375' // 基本上不变
String['prototype']['unsbox'] = function() {
var _0x4b082b = [0xf, 0x23, 0x1d, 0x18, 0x21, 0x10, 0x1, 0x26, 0xa, 0x9, 0x13, 0x1f, 0x28, 0x1b, 0x16, 0x17, 0x19, 0xd, 0x6, 0xb, 0x27, 0x12, 0x14, 0x8, 0xe, 0x15, 0x20, 0x1a, 0x2, 0x1e, 0x7, 0x4, 0x11, 0x5, 0x3, 0x1c, 0x22, 0x25, 0xc, 0x24];
var _0x4da0dc = [];
var _0x12605e = '';
for (var _0x20a7bf = 0x0; _0x20a7bf < _0x4b082b.length; _0x20a7bf++) {
var _0x385ee3 = this[_0x20a7bf];
for (var _0x217721 = 0x0; _0x217721 < _0x4b082b['length']; _0x217721++) {
if (_0x4b082b[_0x217721] == _0x20a7bf + 0x1) {
_0x4da0dc[_0x217721] = _0x385ee3;
}
}
}
_0x12605e = _0x4da0dc['\x6a\x6f\x69\x6e']('');
return _0x12605e;
}
String['prototype']['hexXor'] = function(_0x4e08d8) {
var _0x5a5d3b = '';
for (var _0xe89588 = 0x0; _0xe89588 < this['length'] && _0xe89588 < _0x4e08d8['length']; _0xe89588 += 0x2) {
var _0x401af1 = parseInt(this['slice'](_0xe89588, _0xe89588 + 0x2), 0x10);
var _0x105f59 = parseInt(_0x4e08d8['slice'](_0xe89588, _0xe89588 + 0x2), 0x10);
var _0x189e2c = (_0x401af1 ^ _0x105f59)['toString'](0x10);
if (_0x189e2c['length'] == 0x1) {
_0x189e2c = '\x30' + _0x189e2c;
}
_0x5a5d3b += _0x189e2c;
}
return _0x5a5d3b;
}
var _0x23a392 = arg1['unsbox']();
arg2 = _0x23a392['hexXor'](_0x5e8b26); // 需要验证的
acw_sc__v2 = arg2
return acw_sc__v2
// console.log(acw_sc__v2);
}
console.log(ss(arg1));
5.3.2 python还原
import re
import execjs
import requests
url = 'https://sh.esfxiaoqu.zhuge.com/'
headers = {
"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
"Accept-Encoding": "gzip, deflate, br",
"Accept-Language": "zh-CN,zh;q=0.9",
"Cache-Control": "no-cache",
"Connection": "keep-alive",
"Host": "sh.esfxiaoqu.zhuge.com",
"Pragma": "no-cache",
"sec-ch-ua": "\"Chromium\";v=\"104\", \" Not A;Brand\";v=\"99\", \"Google Chrome\";v=\"104\"",
"sec-ch-ua-mobile": "?0",
"sec-ch-ua-platform": "\"Windows\"",
"Sec-Fetch-Dest": "document",
"Sec-Fetch-Mode": "navigate",
"Sec-Fetch-Site": "same-origin",
"Sec-Fetch-User": "?1",
"Upgrade-Insecure-Requests": "1",
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36"
}
def get_complete_cookie():
complete_cookie = {}
# 第一次不带参数访问首页，获取 acw_tc 和 acw_sc__v2
response = requests.get(url=url, headers=headers)
complete_cookie.update(response.cookies.get_dict())
arg1 = re.findall("arg1='(.*?)'", response.text)[0]
with open('tiaoshi.js', 'r', encoding='utf-8') as f:
acw_sc_v2_js = f.read()
acw_sc__v2 = execjs.compile(acw_sc_v2_js).call('xl', arg1)
complete_cookie.update({"acw_sc__v2": acw_sc__v2})
# 第二次访问首页，获取其他 cookies
response2 = requests.get(url=url, headers=headers, cookies=complete_cookie)
complete_cookie.update(response2.cookies.get_dict())
return complete_cookie
if __name__ == '__main__':
complete_cookie = get_complete_cookie()
标签：function,return,反爬,爬虫,52,parseInt,cookie,var,new 来源： https://www.cnblogs.com/feng0815/p/16654454.html