python爬虫 – js逆向之猿人学第十六题webpack，忽略obfuscator

前言

好久没有写猿人学的分析了，今天来分析一波

 

打开网址：

 

同样的，也很轻易的拿到接口，

 

 

然后这个接口里的请求参数又是迷人的m，m就是我们的目标了

 

分析

 

老规矩，搜索：

 

 

 

搜一堆出来，感觉都不太靠谱

 

那咋办？先看特征，看这个长度是多少的，卧槽，这个长度有点少见了

 

 

 

点调用栈看看：

 

 看到这个就很可疑了

 

 

为啥这么说，dispatch分发请求，匿名函数操作，实际的request，所以，关键的逻辑一定在这个request或者匿名函数anonymous前后，再看js名字就叫webpack，那就是webpack打包的，那前面才分析过webpack的东西，不用怕，点进去看：

 

 

进来都到这里，打上断点，翻页看看，这不就找到了吗，看着webpack唬人，感觉没两样啊

 

 

然后看逻辑，m的值就是n[e(528)](btoa, p_s)生成的了，然后传入的参数btoa，这个可以直接调用，不用多说，再看后面的p_s，定义就在上面，那就只剩n[e(528)]这个不知道啥东西了，鼠标放上去，发现，这个就是前面说的匿名函数anonymous了

 

 

点过去，发现就在上面，然后看逻辑，第一个参数是个函数，然后把第二个参数传入函数直接返回，这个不就是python里的装饰器嘛，

 

 

那么，也就是说，实际的加密逻辑就是btoa(p_s)

 

控制台操作下：

 

 

这不就出来了吗

 

 

然后，前面js逆向安全专题里说了，btoa就是个base64的函数，直接忽略了，python里直接就有，主要是后面的这个参数：

 

p_s = Date[e(496)](new Date)[e(517)]()

 

时间相关的都好说，就差这个e(517)和e(496)了，控制台看是啥东西：

 

 

 

 最后的结果：

 

 然后这个时间戳的话，是毫秒级别的，13位

 

 

调试

那行，直接在python里搞一个看行不行

 

 突然感觉跟预期的有点不一样，这个长度不对啊

 

 首先，整个结果就不对的，

 

 

然后再用node操作也报错：

 

 

从node版本16开始，原生支持atob,btoa，但是之前不支持

 

拿得从长记忆了，控制台打印下：

 

 

双击返回的，进入，如下，这他妈一看，典型的obfuscator混淆啊（别问我怎么看出来的）

 

 

 

既然是ob，先把这个btoa的上级整个抠出来的，此时有两套方案

 

• 第一个可以用ast对ob混淆反混淆，然后整体逻辑就会很清晰，后续就能很快解决问题，前提得回ast，且熟悉ob混淆逻辑
• 第二个不用反混淆，直接补环境也是可以的，但是这个补环境时，如果环境没补好，容易出现错误的结果

 

ob混淆的话，得花好几期的博客文章才能说清楚，为了照顾对这方面不太理解的朋友，所以我选用第二个方案，补环境，抠代码：

 

如下，抠出来后，执行,

 

 

 

把u补上，找到u:

 

 补上并执行：

 

 

继续补_0x34e7并执行：

 

 

 补f，同同时，把标注出来的删了

 

 

补完，这里的f用了u，所以要放在u下面

 

 继续补d

 

 

 

继续补window

 

 

补md5

 

 

补n，其实这里看到，这个n就是webpack的加载器，或者叫分发器

 

 

出现如下，r，但是刚才的n并没有带入参数啊，

 

 

再看源站里的，此时才发下，n并不是刚才定位到的，而是上面的n

 

 所以还是不能信鼠标放上去的跳转啊，尤其这种就一个字母，很容易链接错，因为作用域的问题，你很有可能链接到同名的其他地方去了，像上面就是

看到用了个_0x4c28，干脆把这里都复制下来：

 

 

执行，终于有结果了

 

 调试

 

然后再在浏览器里执行看看，注意，我直接把window = global删了，window.md5直接改成了md5，因为浏览器环境里自带有window对象，所以不用补了

 

 

结果也是有的，那么怎么确定这个结果就跟官方的一样呢，用同一个时间地址就可以了：

先看，这是官方的结果：

 

 把这个值直接放到扣出来的代码执行，node里：

 

 浏览器的source - snippet里

 

 

 

三个值都不一样，那多半也没法用啊，哪里有问题呢？

 

再从头看下：

 

 

 

 

 

应该就是检测了环境，刚才补的环境还是有问题，想到刚才的delete那里：

 

 

 这里只能一行一行看了，可以对这里打上断点一点点看了：

 

 

 然后这里看到这个n:

 

 刚才我们也补了一个n，对比下区别，下面是自己补的，这个值明显就不对了啊，怎么办

 

 看到源网站的n:

 

 

那就把相关的都补上吧，放在for循环上边点：

 

 

好的，现在看，然后发现，即使我把时间写死了，每次执行还是会有不同的结果，那就不多说了，直接拿来请求看看能不能有正常结果吧，先稍微改下js文件：

 

 

 

 

 

python调用：

 

 

那就可以，整理下求和吧

 

 

 

填入答案：

 

 

js代码：

window = global;
var e, t;
_0x4c28 = ["18|38|15|2", "ucisR", "wWwRM", "LzcOo", "yWGcu", "PlAEw", "ihcci", "hBKtU", "rvloG", "xcQTI", "uhJgH", "vRqUp", "EQEzR", "abc", "QgSUn", "0|45|44|19", "WMqBp", "koePJ", "jGSEC", "IKbhW", "wEOgn", "|49|71|11|", "xgzfr", "ABCDEF", "DdHPB", "aFxRD", "sFtiw", "concat", "YhaCC", "YVBwM", "abYok", "2|28|6|36|", "NLOsy", "bRLIN", "xGAWc", "length", "zYRlD", "14|67|61|3", "bolvy", "pagBT", "mdsJQ", "4|69|41|26", "kaXPV", "IWxBE", "pviAr", "5|0|2", "lvwPz", "YcDFe", "yGmJD", "FcYqi", "AAZoR", "|46|5|3|50", "PnITs", "ABCDEFGHIJ", "charCodeAt", "KLMNOPQRST", "prrXX", "FDiNG", "split", "oBesn", "9|24|10|56", "VaXsK", "fromCharCo", "FDfcp", "rrdPR", "HHkBN", "89+/", "mfuQZ", "PbrnX", "FcXlo", "rNapo", "fEXNi", "qtIDJ", "60|53|21|5", "Rtsed", "SUrST", "nsaps", "vyNVU", "2|29|23|64", "0|43|57|4|", "NNXUu", "nCrbn", "wQPIq", "XBcOb", "39|40|47|6", "ljkOt", "yMPhx", "TXzzv", "0123456789", "fmdcS", "iXQwu", "grCxb", "3|6|1|4|7|", "wKeAM", "Iekey", "opqrstuvwx", "|7|17", "BQgZQ", "BtzmV", "jZUAt", "HYhpy", "Yvoqt", "VyzBI", "NNVLf", "dbmfK", "0|58|16|32", "UAFHv", "WNIsZ", "2|1|4|3|5|", "JFqRJ", "zObVA", "d24fb0d696", "XfWkD", "MFmWH", "lZISZ", "WzbFA", "kaQlD", "3f7d28e17f", "eSwEi", "YpeFX", "kZhzK", "KxKIe", "LAIPf", "LjyKQ", "YLwOK", "iqfMz", "51|8|0|65|", "JRihE", "nqEyg", "|37|22|27|", "ZXsFi", "goEwl", "|31|63|48|", "wvVCN", "wnDlW", "Myvqp", "UlhBp", "fwCDC", "charAt", "Lmhlz", "WQCAS", "UXeVn", "KIXRL", "HiEZt", "WNzfT", "lNWda", "tsNzQ"],
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var n = function (e, t) {
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};
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                                    w = i[r(91)](c, w, b, x, T, e[i[r(65)](d, 3)], 10, -1894446606);
                                    continue;
                                case "6":
                                    w = i.XfWkD(l, w, b, x, T, e[i.wKeAM(d, 14)], 9, -1019803690);
                                    continue;
                                case "7":
                                    T = i.pviAr(f, T, v);
                                    continue;
                                case "8":
                                    b = i.XfWkD(l, b, x, T, w, e[i[r(92)](d, 13)], 5, -1444681467);
                                    continue;
                                case "9":
                                    x = i[r(38)](s, x, T, w, b, e[i[r(82)](d, 3)], 22, -1044525330);
                                    continue;
                                case "10":
                                    w = s(w, b, x, T, e[i[r(82)](d, 5)], 12, 1200080426);
                                    continue;
                                case "11":
                                    x = i[r(38)](l, x, T, w, b, e[i[r(82)](d, 0)], 20, -373897302);
                                    continue;
                                case "12":
                                    w = i[r(38)](s, w, b, x, T, e[i[r(82)](d, 9)], 12, -1958435417);
                                    continue;
                                case "13":
                                    b = i.XfWkD(s, b, x, T, w, e[i.xcQTI(d, 8)], 7, 1770035416);
                                    continue;
                                case "14":
                                    var m = b;
                                    continue;
                                case "15":
                                    w = i[r(38)](u, w, b, x, T, e[i.xcQTI(d, 8)], 11, -2022574463);
                                    continue;
                                case "16":
                                    b = f(b, m);
                                    continue;
                                case "17":
                                    w = i[r(111)](f, w, g);
                                    continue;
                                case "18":
                                    x = l(x, T, w, b, e[i[r(78)](d, 12)], 20, -1921207734);
                                    continue;
                                case "19":
                                    w = i[r(40)](u, w, b, x, T, e[d + 4], 11, 1272893353);
                                    continue;
                                case "20":
                                    T = i[r(20)](u, T, w, b, x, e[i.PlAEw(d, 11)], 16, 1839030562);
                                    continue;
                                case "21":
                                    b = s(b, x, T, w, e[i[r(123)](d, 12)], 7, 1804550682);
                                    continue;
                                case "22":
                                    x = u(x, T, w, b, e[i[r(123)](d, 10)], 23, -1094730640);
                                    continue;
                                case "23":
                                    T = i[r(67)](c, T, w, b, x, e[d + 14], 15, -1416354905);
                                    continue;
                                case "24":
                                    b = s(b, x, T, w, e[i[r(123)](d, 4)], 7, -176418897);
                                    continue;
                                case "25":
                                    w = i.UXeVn(u, w, b, x, T, e[d + 0], 11, -358537222);
                                    continue;
                                case "26":
                                    b = i.UXeVn(l, b, x, T, w, e[i[r(62)](d, 1)], 5, -165796510);
                                    continue;
                                case "27":
                                    b = i.UXeVn(u, b, x, T, w, e[i[r(62)](d, 13)], 4, 681279174);
                                    continue;
                                case "28":
                                    b = i[r(12)](l, b, x, T, w, e[i[r(138)](d, 9)], 5, 568446438);
                                    continue;
                                case "29":
                                    w = i.yMPhx(c, w, b, x, T, e[d + 7], 10, 11261161415);
                                    continue;
                                case "30":
                                    var g = w;
                                    continue;
                                case "31":
                                    b = c(b, x, T, w, e[i.yGmJD(d, 8)], 6, 1873313359);
                                    continue;
                                case "32":
                                    x = i.aFxRD(f, x, y);
                                    continue;
                                case "33":
                                    T = i[r(12)](l, T, w, b, x, e[i[r(121)](d, 15)], 14, -660478335);
                                    continue;
                                case "34":
                                    T = i.kHuTw(u, T, w, b, x, e[d + 3], 16, -722881979);
                                    continue;
                                case "35":
                                    b = i[r(50)](l, b, x, T, w, e[i[r(121)](d, 5)], 5, -701520691);
                                    continue;
                                case "36":
                                    T = l(T, w, b, x, e[i[r(121)](d, 3)], 14, -187363961);
                                    continue;
                                case "37":
                                    T = i[r(142)](u, T, w, b, x, e[i.QgSUn(d, 7)], 16, -155497632);
                                    continue;
                                case "38":
                                    b = i.FcXlo(u, b, x, T, w, e[i.koePJ(d, 5)], 4, -378558);
                                    continue;
                                case "39":
                                    w = i[r(142)](u, w, b, x, T, e[i[r(90)](d, 12)], 11, -421815835);
                                    continue;
                                case "40":
                                    T = i[r(59)](u, T, w, b, x, e[i[r(28)](d, 15)], 16, 530742520);
                                    continue;
                                case "41":
                                    x = i.wvVCN(s, x, T, w, b, e[d + 15], 22, 1236531029);
                                    continue;
                                case "42":
                                    x = i[r(59)](l, x, T, w, b, e[i[r(119)](d, 4)], 20, -405537848);
                                    continue;
                                case "43":
                                    b = i[r(59)](s, b, x, T, w, e[i.lvwPz(d, 0)], 7, -680976936);
                                    continue;
                                case "44":
                                    b = i[r(59)](u, b, x, T, w, e[i[r(45)](d, 1)], 4, -1530992060);
                                    continue;
                                case "45":
                                    x = i.nCrbn(u, x, T, w, b, e[i[r(129)](d, 14)], 23, -35311556);
                                    continue;
                                case "46":
                                    b = c(b, x, T, w, e[i[r(42)](d, 12)], 6, 1700485571);
                                    continue;
                                case "47":
                                    x = i[r(7)](u, x, T, w, b, e[i.kaQlD(d, 2)], 23, -995338651);
                                    continue;
                                case "48":
                                    T = c(T, w, b, x, e[d + 6], 15, -1560198380);
                                    continue;
                                case "49":
                                    w = i[r(145)](l, w, b, x, T, e[i[r(107)](d, 6)], 9, -1069501632);
                                    continue;
                                case "50":
                                    x = i[r(134)](c, x, T, w, b, e[i[r(89)](d, 1)], 21, -2054922799);
                                    continue;
                                case "51":
                                    x = i.fmdcS(l, x, T, w, b, e[d + 8], 20, 1163531501);
                                    continue;
                                case "52":
                                    x = i[r(15)](c, x, T, w, b, e[i[r(9)](d, 13)], 21, 1309151649);
                                    continue;
                                case "53":
                                    x = i[r(15)](s, x, T, w, b, e[i[r(56)](d, 11)], 22, -1990404162);
                                    continue;
                                case "54":
                                    w = i[r(6)](s, w, b, x, T, e[i[r(32)](d, 13)], 12, -40341101);
                                    continue;
                                case "55":
                                    x = i.sFtiw(s, x, T, w, b, e[i.UAFHv(d, 7)], 22, -45705983);
                                    continue;
                                case "56":
                                    T = i.sFtiw(s, T, w, b, x, e[i.MFmWH(d, 6)], 17, -1473231341);
                                    continue;
                                case "57":
                                    w = i[r(99)](s, w, b, x, T, e[i.MFmWH(d, 1)], 12, -389564586);
                                    continue;
                                case "58":
                                    x = c(x, T, w, b, e[i[r(39)](d, 9)], 21, -343485551);
                                    continue;
                                case "59":
                                    b = i[r(113)](c, b, x, T, w, e[i[r(39)](d, 4)], 6, -145523070);
                                    continue;
                                case "60":
                                    T = i.bRLIN(s, T, w, b, x, e[i[r(39)](d, 10)], 17, -42063);
                                    continue;
                                case "61":
                                    var v = T;
                                    continue;
                                case "62":
                                    b = i[r(66)](c, b, x, T, w, e[d + 0], 6, -198630844);
                                    continue;
                                case "63":
                                    w = i[r(66)](c, w, b, x, T, e[i[r(13)](d, 15)], 10, -30611744);
                                    continue;
                                case "64":
                                    x = c(x, T, w, b, e[d + 5], 21, -57434055);
                                    continue;
                                case "65":
                                    T = i[r(29)](l, T, w, b, x, e[i[r(13)](d, 7)], 14, 1735328473);
                                    continue;
                                case "66":
                                    w = i[r(29)](c, w, b, x, T, e[i[r(79)](d, 11)], 10, -1120210379);
                                    continue;
                                case "67":
                                    var y = x;
                                    continue;
                                case "68":
                                    w = i[r(1)](l, w, b, x, T, e[d + 10], 9, 38016083);
                                    continue;
                                case "69":
                                    T = i[r(1)](s, T, w, b, x, e[i[r(79)](d, 14)], 17, -1502002290);
                                    continue;
                                case "70":
                                    T = i.SUrST(c, T, w, b, x, e[i[r(79)](d, 2)], 15, 718787259);
                                    continue;
                                case "71":
                                    T = l(T, w, b, x, e[i[r(81)](d, 11)], 14, 643717713);
                                    continue
                            }
                            break
                        }
                    continue;
                case "1":
                    var b = 1732584193;
                    continue;
                case "2":
                    return Array(b, x, T, w);
                case "3":
                    e[i.MXnIN(n, 5)] |= i[r(23)](128, i[r(54)](n, 32));
                    continue;
                case "4":
                    var x = -271733879;
                    continue;
                case "5":
                    var w = 271733878;
                    continue;
                case "6":
                    e[i.BQgZQ(i[r(115)](n + 64, 9), 4) + 14] = n;
                    continue;
                case "7":
                    var T = -1732584194;
                    continue
            }
            break
        }
    }

    function a(e, n, r, o, a, s) {
        var l = t;
        return f(i.BtzmV(d, i[l(44)](f, i.dbmfK(f, n, e), i[l(30)](f, o, s)), a), r)
    }

    function s(e, n, r, o, s, l, u) {
        var c = t;
        return a(i[c(143)](i[c(101)](n, r), i[c(101)](~n, o)), e, n, s, l, u)
    }

    function l(e, n, r, o, s, l, u) {
        var c = t;
        return i[c(122)](a, i[c(143)](i.ZpUiH(n, o), i.ZpUiH(r, ~o)), e, n, s, l, u)
    }

    function u(e, n, r, o, s, l, u) {
        return i[t(122)](a, i.tsNzQ(n ^ r, o), e, n, s, l, u)
    }

    function c(e, n, r, o, s, l, u) {
        var c = t;
        return i[c(122)](a, i[c(130)](r, i[c(41)](n, ~o)), e, n, s, l, u)
    }

    function f(e, n) {
        var r = t
            , o = i[r(95)](65535 & e, i.iqfMz(n, 65535))
            , a = i[r(95)](e >> 16, i[r(97)](n, 16)) + i[r(97)](o, 16);
        return i[r(103)](i[r(84)](a, 16), i[r(105)](o, 65535))
    }

    function d(e, n) {
        var r = t;
        return i.abYok(e << n, e >>> i[r(8)](32, n))
    }

    function p(e) {
        for (var n = t, r = i[n(137)](Array), o = i[n(8)](i.vRqUp(1, 16), 1), a = 0; a < i.FDfcp(e[n(108)], 16); a += 16)
            r[i[n(97)](a, 5)] |= i[n(102)](i[n(27)](e[n(127)](i[n(26)](a, 16)), o), i[n(54)](a, 32));
        return r
    }

    function h(e) {
        for (var n = t, r = i[n(49)], o = "", a = 0; i.iXQwu(a, i[n(74)](e[n(108)], 4)); a++)
            o += i.xgzfr(r[n(64)](15 & i[n(36)](e[i[n(36)](a, 2)], i[n(46)](i[n(74)](a % 4, 8), 4))), r[n(64)](15 & i.wWwRM(e[a >> 2], i[n(47)](a % 4, 8))));
        return o
    }

    return i[t(0)]((function (e) {
            var n = t;
            return i[n(144)](h, i[n(76)](o, i.vyNVU(p, e), 16 * e[n(108)]))
        }
    ), e)
}
var _0x34e7 = [
    "split",
    "ABHICESQWK",
    "FKByN",
    "U987654321",
    "lmHcG",
    "dICfr",
    "Szksx",
    "Bgrij",
    "iwnNJ",
    "jihgfdecba",
    "GfTek",
    "gfdecbaZXY",
    "constructo",
    "QIoXW",
    "jLRMs",
    "AqLWq",
    "0zyxwvutsr",
    "TKgNw",
    "eMnqD",
    "thjIz",
    "btoa",
    "MNPQRSTWXY",
    "oPsqh",
    "niIlq",
    "evetF",
    "LVZVH",
    "fYWEX",
    "kmnprstwxy",
    "aYkvo",
    "tsrqpomnlk",
    "HfLqY",
    "aQCDK",
    "lGBLj",
    "test",
    "3210zyxwvu",
    "QWK2Fi",
    "return /\" ",
    "hsJtK",
    "jdwcO",
    "SlFsj",
    "OWUOc",
    "LCaAn",
    "[^ ]+)+)+[",
    "FAVYf",
    "2Fi+987654",
    "floor",
    "join",
    "EuwBW",
    "OXYrZ",
    "charCodeAt",
    "SkkHG",
    "iYuJr",
    "GwoYF",
    "kPdGe",
    "cVCcp",
    "INQRH",
    "INVALID_CH",
    "charAt",
    "push",
    "apply",
    "lalCJ",
    "kTcRS",
    "+ this + \"",
    "ykpOn",
    "gLnjm",
    "gmBaq",
    "kukBH",
    "dvEWE",
    "SFKLi",
    "^([^ ]+( +",
    "qpomnlkjih",
    "^ ]}",
    "pHtmC",
    "length"
]
var l = function (e, t) {
    return _0x34e7[e -= 188]
}
    , u = l

function d(e) {
    var t = u
        , n = {};
    n[t(214)] = function (e, t) {
        return e || t
    }
        ,
        n.bWcgB = function (e, t) {
            return e * t
        }
        ,
        n[t(227)] = "ABCDEFGHJK" + t(209) + "Zabcdefhij" + t(215) + "z2345678";
    for (var r = n, o = "1|3|0|4|2|5"[t(188)]("|"), a = 0; ;) {
        switch (o[a++]) {
            case "0":
                var s = l[t(261)];
                continue;
            case "1":
                e = r[t(214)](e, 32);
                continue;
            case "2":
                for (i = 0; i < e; i++)
                    c += l[t(245)](Math[t(233)](r.bWcgB(Math.random(), s)));
                continue;
            case "3":
                var l = r[t(227)];
                continue;
            case "4":
                var c = "";
                continue;
            case "5":
                return c
        }
        break
    }
}

function btoa(e) {
    var t = u,
        r = {};
    var f = u(191) + u(204) + u(258) + u(199) + "WVUTSRQPON" + u(189) + u(232) + u(222) + u(217) + u(197) + "ZXYWVUTSRQPONABHICES" + u(223);

    r.TGmSp = t(244) + "ARACTER_ERR", r[t(238)] = t(224) + t(250) + "/", r[t(205)] = "^([^ ]+( +" + t(230) + t(259), r.aYkvo = function (e) {
        return e();
    }, r[t(254)] = function (e, t) {
        return e % t;
    }, r.evetF = function (e, t) {
        return e >> t;
    }, r.GfTek = t(196), r[t(260)] = function (e, t) {
        return e << t;
    }, r[t(229)] = function (e, t) {
        return e | t;
    }, r[t(242)] = function (e, t) {
        return e << t;
    }, r[t(228)] = function (e, t) {
        return e & t;
    }, r[t(207)] = function (e, t) {
        return e << t;
    }, r[t(202)] = function (e, t) {
        return e & t;
    }, r.jdwcO = function (e, t) {
        return e === t;
    }, r.kPdGe = t(231), r[t(195)] = t(213), r[t(201)] = function (e, t) {
        return e & t;
    }, r[t(206)] = function (e, t) {
        return e == t;
    }, r[t(219)] = function (e, t) {
        return e + t;
    }, r[t(220)] = function (e, t) {
        return e(t);
    };
    var i = r;

    if (/([^\u0000-\u00ff])/.test(e)) {
        throw new Error(i.TGmSp);
    }

    function n(r) {
        if (t[r])
            return t[r].exports;
        var i = t[r] = {
            exports: {}
        };
        return e[r].call(i.exports, i, i.exports, n),
            i.exports
    }

    n.g = function () {
        if ("object" == typeof globalThis)
            return globalThis;
        try {
            return this || new Function("return this")()
        } catch (e) {
            if ("object" == typeof window)
                return window
        }
    }()
    for (var o, a, s, l = 0, c = []; l < e[t(261)];) {
        switch (a = e[t(237)](l), s = i.kukBH(l, 6)) {
            case 0:
                c[t(246)](f[t(245)](i[t(212)](a, 2)));
                break;
            case 1:
                try {
                    "WhHMm" === i[t(198)] || n.g && c[t(246)](f[t(245)](i.pHtmC(2 & o, 3) | i.evetF(a, 4)));
                } catch (e) {
                    c[t(246)](f[t(245)](i[t(229)](i.cVCcp(3 & o, 4), a >> 4)));
                }

                break;

            case 2:
                c[t(246)](f[t(245)](i[t(229)](i[t(242)](15 & o, 2), i.evetF(a, 6)))), c[t(246)](f[t(245)](i[t(228)](a, 63)));
                break;

            case 3:
                c[t(246)](f[t(245)](i[t(212)](a, 3)));
                break;

            case 4:
                c.push(f[t(245)](i[t(229)](i[t(207)](i.OWUOc(o, 4), 6), i[t(212)](a, 6))));
                break;

            case 5:
                c[t(246)](f[t(245)](i[t(229)](i[t(207)](i[t(202)](o, 15), 4), a >> 8))), c.push(f.charAt(i[t(202)](a, 63)));
        }

        o = a, l++;
    }

    return 0 == s ? i[t(226)](i[t(241)], i[t(195)]) || (c[t(246)](f[t(245)](i[t(201)](o, 3) << 4)), c.push("FM")) : i.eMnqD(s, 1) && (c[t(246)](f[t(245)]((15 & o) << 2)), c[t(246)]("K")), i[t(219)](i.aQCDK(d(15), window.md5(c[t(234)](""))), i[t(220)](d, 10));
}

function get_m() {
    kk = Date.parse(new Date).toString()
    console.log(kk)
    return [btoa(kk), kk]
}

console.log(get_m())

　　

python代码：

import requests

headers = {
    "authority": "match.yuanrenxue.com",
    "x-requested-with": "XMLHttpRequest",
    "sec-ch-ua-mobile": "?0",
    'cookie': 'sessionid=换成你的sessionid',
    "user-agent": "yuanrenxue.project",
    "sec-ch-ua-platform": "\"Windows\"",
    "sec-fetch-site": "same-origin",
    "sec-fetch-mode": "cors",
    "sec-fetch-dest": "empty",
    "referer": "https://match.yuanrenxue.com/match/16",
    "accept-language": "zh-CN,zh;q=0.9"
}

url = "https://match.yuanrenxue.com/api/match/16"


def get_m():
    import execjs
    with open('get_m.js') as f:
        cont = f.read()
        js = execjs.compile(cont)
        result = js.call('get_m')
        m, ts = result
        return m, ts


def get_page(page):
    m, ts = get_m()
    params = {
        "page": page,
        "m": m,
        "t": ts
    }
    with requests.get(url, headers=headers, params=params) as response:
        print(1232123123,response)
        result = response.json()
        data = result.get('data')
        return [d.get('value') for d in data]


def get_data():
    end = 0
    for i in range(1, 6):
        temp_list = get_page(i)
        some = sum(temp_list)
        end += some
    print('end', end)


get_data()

　　

 

 

结语

 

本次直接忽略ob混淆，硬抠webpack代码，一样有结果，难倒是不难，主要有点骚，他改了btoa函数和md5函数的逻辑，不是原生的