爬虫逆向实战（七）--猿人学第十六题

一、数据接口分析

主页地址：猿人学第十六题

1、抓包

通过抓包可以发现数据接口是api/match/16

2、判断是否有加密参数

1. 请求参数是否加密？
   通过查看“载荷”模块可以看出m是加密参数
   
2. 请求头是否加密？
   无
3. 响应是否加密？
   无
4. cookie是否加密？
   无

二、加密位置定位

1、看启动器

查看启动器发现有一个调用堆栈中window.request，点进去查看

查看发现，此处是发送ajax请求的位置，m的生成就在上方

三、扣js代码

将定位到的加密位置的代码扣出，缺啥补啥即可

避坑

在将js代码都扣完之后，运行代码可以生成加密参数，但是请求时返回解密失败。
此时再次查看浏览器中的js代码

1、修改数组

此处n方法中使用了_0x4c28这个数组，我直接把上方数组的定义直接扣出来了，但是没有看到下方js代码对这个数组进行了修改，需要将下方代码一并扣出来

2、try捕获异常

此处有一个try catch，其中try包着的代码中有一个n.g没有扣，代码就报错走了catch中的代码，将n.g补上或者直接换成true即可。
源代码：

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 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"],e = _0x4c28,t = 368,function(t) {for (; --t; )e.push(e.shift())}(++t);var n = function(e, t) {return _0x4c28[e -= 0]};
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-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)}function u(e, t) {return _0x34e7[e -= 188]
}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 = {};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;var f = 'U9876543210zyxwvutsrqpomnlkjihgfdecbaZXYWVUTSRQPONABHICESQWK2Fi+9876543210zyxwvutsrqpomnlkjihgfdecbaZXYWVUTSRQPONABHICESQWK2Fi';if (/([^\u0000-\u00ff])/.test(e))throw new Error(i.TGmSp);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)] || true && 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_param(page) {p_s = Date.parse(new Date).toString()return {t: p_s,m: btoa(p_s),page: page}
}