最新PDD商家端Anti-Content参数逆向分析与纯算法还原_pdd anti_content(1)

1. 写在前面

H5目前这个参数好像是已经不再做校验了？所以再去分析的话意义并不大了。而且它那个界面真的是巨难用！为此，我单独去注册了一个商家版的！只为还原最真实的场景。目前最新的anti_content是0aq开头的，相比较于早期的老版本不再需要参数去参与加密，纯算法扣出来还原之后可在本地Node环境下直接调用生成，并且算法通用于所有接口…

2. 接口分析

这个商家后台管理，确实功能做的挺丰富，我这边主要是新注册的，然后数据基本都是空的，所以文章中能够直观测试的接口比较少，但是扣出来的算法确实是通用的！因为有朋友跟粉丝一直在做这块，算法也是给他们进行了测试，下面是一位粉丝使用易语言调用的结果，如下所示：

首先，我们找到商品管理下面的商品列表，发个包监听一下请求：

这里如果Anti-Content参数不对或者你不携带，得到的结果均会如下：

{"error\_code":54001,"error\_msg":"操作太过频繁，请稍后再试！","result":{"verifyAuthToken":"一堆字符"}}

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H5就不一样，你不携带现在照样给你数据，压根好像都不做参数检验了～

3. 断点分析

首先我们使用关键词参数全局搜索大法整一下，搜索出来的结果不多，如下：

可以全部下个断，然后重新刷新页面，这里的话我们可以看到anti_content已经生成

往上看在**.then的上方，这行代码return !kt.a || s && s(n) ? Promise.resolve(c(t.rawFetch, l).catch((function() {}**，异步调用？

这里确实是一个异步，是一个Promise的链式调用。调用了**c(t.rawFetch, l)**函数，这个函数返回的是一个Promise对象，就是一个复合条件表达式，包含了逻辑运算跟Promise异步操作

上面的断点异步调用，难度并不大，稍微调式一下就能够看到核心的加密代码了，那剩下的就是扣代码！！！

4. 扣JS代码

接下来就到了核心阶段，扣取Webpack代码，整个加密逻辑大部分都在一个JS文件内，我们需要花时间去调试分析，梳理清楚模块加载顺序，然后把整个加密算法还原出来

把加密核心JS代码扣取下来，这里你不需要去改，直接拿我这个就可用！！如下所示：

function o(e) {
    return (o = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function(e) {
        return typeof e
    } : function(e) {
        return e && "function" == typeof Symbol && e.constructor === Symbol && e !== Symbol.prototype ? "symbol" : typeof e
    })(e)
}

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为了避免多次调用 typeof、Symbol，我们同样使用自执行函数的方式定义，这样做可以提高代码的性能，因为它避免了重复计算，如下所示：

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                      r[t("0x4f", "HaX[")](o, 0) && r[t("0xbb", "FVER")](o, 127) ? (a[Y](o), i += 1) : r[t("0xd", "Hof]")](128, 80) && r[t("0x12", "1YRP")](o, 2047) ? (i += 2, a[Y](r[t("0xb8", "y@5u")](192, r[t("0xdc", "Hof]")](31, r[t("0x1f", "86I$")](o, 6)))), a[Y](r[t("0x61", "4j9@")](128, r[t("0x2c", "0]JJ")](63, o)))) : (r[t("0xfb", "FlMG")](o, 2048) && r[t("0x2e", "0JIq")](o, 55295) || r[t("0xd9", "g#sj")](o, 57344) && r[t("0x99", "Poq&")](o, 65535)) && (i += 3, a[Y](r[t("0x90", "&Wvj")](224, r[t("0x5e", "HaX[")](15, r[t("0xd3", "rib%")](o, 12)))), a[Y](r[t("0x11d", "FVER")](128, r[t("0x115", "YD9J")](63, r[t("0x8b", "Zd5Z")](o, 6)))), a[Y](r[t("0x5", "D@GR")](128, r[t("0x91", "&NG^")](63, o))))
                  }
                  for (var d = 0; r[t("0x4c", "EX&9")](d, a[g]); d += 1)
                  a[d] &= 255;
                  return r[t("0x16", "[wyj")](i, 255) ? [0, i][k](a) : [r[t("0xb7", "uDrd")](i, 8), r[t("0x36", "bWtw")](i, 255)][k](a)
              },
              es: function(e) {
                  var t = u;
                  e || (e = "");
                  var n = e[L](0, 255),
                      r = [],
                      a = W[t("0x6f", "pRbw")](n)[f](2);
                  return r[Y](a[g]), r[k](a)
              },
              en: function(e) {
                  var t = u,
                      n = {};
                  n[t("0xbc", "xY%o")] = function(e, t) {
                      return e(t)
                  }, n[t("0x66", "FVER")] = function(e, t) {
                      return e > t
                  }, n[t("0xe2", "wWU6")] = function(e, t) {
                      return e !== t
                  }, n[t("0xf7", "Dtn]")] = function(e, t) {
                      return e % t
                  }, n[t("0xcf", "zrWU")] = function(e, t) {
                      return e / t
                  }, n[t("0x3f", "&Wvj")] = function(e, t) {
                      return e < t
                  }, n[t("0x41", "w(Dq")] = function(e, t) {
                      return e \* t
                  }, n[t("0x10f", "xY%o")] = function(e, t) {
                      return e + t
                  }, n[t("0x63", "4j9@")] = function(e, t, n) {
                      return e(t, n)
                  };
                  var r = n;
                  e || (e = 0);
                  var a = r[t("0x23", "v7]k")](D, e),
                      i = [];
                  r[t("0xaf", "Dtn]")](a, 0) ? i[Y](0) : i[Y](1);
                  for (var s = Math[t("0x13", "D@GR")](a)[y](2)[_](""), o = 0; r[t("0xa6", "bWtw")](r[t("0x111", "pRbw")](s[g], 8), 0); o += 1)
                  s[p]("0");
                  s = s[l]("");
                  for (var d = Math[c](r[t("0xdf", "1YRP")](s[g], 8)), m = 0; r[t("0x145", "vqpk")](m, d); m += 1) {
                      var f = s[L](r[t("0xe1", "Zd5Z")](m, 8), r[t("0x49", "bNd#")](r[t("0x31", "VdBX")](m, 1), 8));
                      i[Y](r[t("0xf0", "Buip")](D, f, 2))
                  }
                  var h = i[g];
                  return i[p](h), i
              },
              sc: function(e) {
                  var t = u,
                      n = {};
                  n[t("0x101", "iF%V")] = function(e, t) {
                      return e > t
                  }, e || (e = "");
                  var r = n[t("0x25", "bWtw")](e[g], 255) ? e[L](0, 255) : e;
                  return W[t("0xe0", "D@GR")](r)[f](2)
              },
              nc: function(e) {
                  var t = u,
                      n = {};
                  n[t("0xf5", "Poq&")] = function(e, t) {
                      return e(t)
                  }, n[t("0x74", "wWU6")] = function(e, t) {
                      return e / t
                  }, n[t("0x8", "D@GR")] = function(e, t, n, r) {
                      return e(t, n, r)
                  }, n[t("0x24", "1YRP")] = function(e, t) {
                      return e \* t
                  }, n[t("0xb6", "T5dY")] = function(e, t) {
                      return e < t
                  }, n[t("0xc4", "YD9J")] = function(e, t) {
                      return e \* t
                  }, n[t("0x67", "uzab")] = function(e, t) {
                      return e + t
                  }, n[t("0x9a", "5W0R")] = function(e, t, n) {
                      return e(t, n)
                  };
                  var r = n;
                  e || (e = 0);
                  var a = Math[t("0x93", "tM!n")](r[t("0x11c", "EX&9")](D, e))[y](2),
                      s = Math[c](r[t("0xa3", "1YRP")](a[g], 8));
                  a = r[t("0x1b", "0I]C")](i, a, r[t("0x42", "tnRV")](s, 8), "0");
                  for (var o = [], d = 0; r[t("0x10c", "bNd#")](d, s); d += 1) {
                      var l = a[L](r[t("0xc1", "1YRP")](d, 8), r[t("0x4a", "D@GR")](r[t("0x114", "&Wvj")](d, 1), 8));
                      o[Y](r[t("0x12a", "uDrd")](D, l, 2))
                  }
                  return o
              },
              va: function(e) {
                  var t = u,
                      n = {};
                  n[t("0x95", "FVER")] = function(e, t) {
                      return e(t)
                  }, n[t("0x26", "5W0R")] = function(e, t, n, r) {
                      return e(t, n, r)
                  }, n[t("0x13a", "Naa&")] = function(e, t) {
                      return e \* t
                  }, n[t("0xa5", "rib%")] = function(e, t) {
                      return e / t
                  }, n[t("0x4e", "Zd5Z")] = function(e, t) {
                      return e >= t
                  }, n[t("0x9e", "&Wvj")] = function(e, t) {
                      return e - t
                  }, n[t("0xa2", "rib%")] = function(e, t) {
                      return e === t
                  }, n[t("0xeb", "EX&9")] = function(e, t) {
                      return e & t
                  }, n[t("0xf8", "Buip")] = function(e, t) {
                      return e + t
                  }, n[t("0x50", "&Wvj")] = function(e, t) {
                      return e >>> t
                  };
                  var r = n;
                  e || (e = 0);
                  for (var a = Math[t("0x94", "vqpk")](r[t("0x12b", "5W0R")](D, e)), s = a[y](2), o = [], d = (s = r[t("0x98", "bWtw")](i, s, r[t("0xe7", "T5dY")](Math[c](r[t("0xf9", "Buip")](s[g], 7)), 7), "0"))[g]; r[t("0xe4", "uzab")](d, 0); d -= 7) {
                      var l = s[L](r[t("0xf1", "49kG")](d, 7), d);
                      if (r[t("0xe8", "YD9J")](r[t("0x123", "wWU6")](a, -128), 0)) {
                          o[Y](r[t("0x103", "T5dY")]("0", l));
                          break
                      }
                      o[Y](r[t("0x11a", "Poq&")]("1", l)), a = r[t("0x92", "49kG")](a, 7)
                  }
                  return o[h](function(e) {
                      return D(e, 2)
                  })
              },
              ek: function(e) {
                  var t = arguments.length > 1 && void 0 !== arguments[1] ? arguments[1] : "",
                      n = u,
                      r = {};
                  r[n("0x2", "w(Dq")] = function(e, t) {
                      return e !== t
                  }, r[n("0xca", "Zu]D")] = function(e, t) {
                      return e === t
                  }, r[n("0x57", "Naa&")] = n("0xf6", "w(Dq"), r[n("0x7e", "Zu]D")] = n("0x110", "YD9J"), r[n("0x7a", "T5dY")] = n("0x75", "Dtn]"), r[n("0x128", "vqpk")] = function(e, t) {
                      return e > t
                  }, r[n("0x4", "zrWU")] = function(e, t) {
                      return e <= t
                  }, r[n("0x56", "uzab")] = function(e, t) {
                      return e + t
                  }, r[n("0x141", "VdBX")] = function(e, t, n, r) {
                      return e(t, n, r)
                  }, r[n("0xd2", "FVER")] = n("0xda", "j&er"), r[n("0x17", "FVER")] = function(e, t, n) {
                      return e(t, n)
                  }, r[n("0x96", "vqpk")] = function(e, t) {
                      return e - t
                  }, r[n("0x11f", "VdBX")] = function(e, t) {
                      return e > t
                  };
                  var s = r;
                  if (!e) return [];
                  var o = [],
                      d = 0;
                  s[n("0x147", "WmWP")](t, "") && (s[n("0x125", "pRbw")](Object[n("0x109", "FlMG")][y][n("0xb0", "y@5u")](t), s[n("0xa4", "4j9@")]) && (d = t[g]), s[n("0x39", "tnRV")](void 0 === t ? "undefined" : a(t), s[n("0xf", "D@GR")]) && (d = (o = W.sc(t))[g]), s[n("0x39", "tnRV")](void 0 === t ? "undefined" : a(t), s[n("0x5f", "rib%")]) && (d = (o = W.nc(t))[g]));
                  var l = Math[n("0xe5", "pRbw")](e)[y](2),
                      c = "";
                  c = s[n("0x9d", "Hof]")](d, 0) && s[n("0x28", "D@GR")](d, 7) ? s[n("0x6", "bWtw")](l, s[n("0x104", "49kG")](i, d[y](2), 3, "0")) : s[n("0xd7", "iF%V")](l, s[n("0xab", "EX&9")]);
                  var _ = [s[n("0x97", "rib%")](D, c[f](Math[n("0x12c", "uDrd")](s[n("0x15", "w(Dq")](c[g], 8), 0)), 2)];
                  return s[n("0x82", "(k)G")](d, 7) ? _[k](W.va(d), o) : _[k](o)
              },
              ecl: function(e) {
                  var t = u,
                      n = {};
                  n[t("0x122", "bWtw")] = function(e, t) {
                      return e < t
                  }, n[t("0x131", "&Wvj")] = function(e, t, n) {
                      return e(t, n)
                  };
                  for (var r = n, a = [], i = e[y](2)[_](""), s = 0; r[t("0xd8", "tM!n")](i[g], 16); s += 1)
                  i[p](0);
                  return i = i[l](""), a[Y](r[t("0x19", "UcbW")](D, i[L](0, 8), 2), r[t("0xbe", "WmWP")](D, i[L](8, 16), 2)), a
              },
              pbc: function() {
                  var e = arguments.length > 0 && void 0 !== arguments[0] ? arguments[0] : "",
                      t = u,
                      n = {};
                  n[t("0x7c", "0]JJ")] = function(e, t) {
                      return e(t)
                  }, n[t("0x20", "iF%V")] = function(e, t) {
                      return e < t
                  }, n[t("0xaa", "tnRV")] = function(e, t) {
                      return e - t
                  };
                  var r = n,
                      a = [],
                      i = W.nc(r[t("0x43", "[wyj")](s, e[m](/\\s/g, "")));
                  if (r[t("0xcd", "bWtw")](i[g], 4)) for (var o = 0; r[t("0x51", "zrWU")](o, r[t("0x3a", "HaX[")](4, i[g])); o++)
                  a[Y](0);
                  return a[k](i)
              },
              gos: function(e, t) {
                  var n = u,
                      r = {};
                  r[n("0x135", "EX&9")] = function(e, t) {
                      return e === t
                  }, r[n("0x8e", "wWU6")] = n("0x136", "w(Dq"), r[n("0x85", "CCDE")] = n("0x13f", "1YRP");
                  var a = r,
                      i = Object[a[n("0x86", "0I]C")]](e)[h](function(t) {
                          var r = n;
                          return a[r("0xef", "5W0R")](t, a[r("0x9c", "r6cx")]) || a[r("0xb2", "xY%o")](t, "c") ? "" : t + ":" + e[t][y]() + ","
                      })[l]("");
                  return n("0x12e", "zrWU") + t + "={" + i + "}"
              },
              budget: function(e, t) {
                  var n = u,
                      r = {};
                  r[n("0x133", "vqpk")] = function(e, t) {
                      return e === t
                  }, r[n("0xd0", "Buip")] = function(e, t) {
                      return e === t
                  }, r[n("0x48", "1YRP")] = function(e, t) {
                      return e >= t
                  }, r[n("0x13c", "HaX[")] = function(e, t) {
                      return e + t
                  };
                  var a = r;
                  return a[n("0xa", "iF%V")](e, 64) ? 64 : a[n("0xc2", "v7]k")](e, 63) ? t : a[n("0x46", "NZM&")](e, t) ? a[n("0x129", "Zd5Z")](e, 1) : e
              },
              encode: function(e, t) {
                  var n = u,
                      r = {};
                  r[n("0x3", "0I]C")] = function(e, t) {
                      return e < t
                  }, r[n("0x132", "r6cx")] = n("0x13d", "[wyj"), r[n("0x10e", "v7]k")] = function(e, t) {
                      return e < t
                  }, r[n("0x11b", "YD9J")] = n("0x71", "Zu]D"), r[n("0x4b", "uzab")] = function(e, t) {
                      return e !== t
                  }, r[n("0x7b", "v7]k")] = n("0x55", "j&er"), r[n("0x137", "Hof]")] = n("0x14", "uDrd"), r[n("0xc", "r6cx")] = function(e, t) {
                      return e \* t
                  }, r[n("0xdb", "86I$")] = n("0xd5", "1YRP"), r[n("0x45", "5W0R")] = n("0xec", "WmWP"), r[n("0xa9", "uzab")] = function(e, t) {
                      return e | t
                  }, r[n("0xcb", "1YRP")] = function(e, t) {
                      return e << t
                  }, r[n("0x1a", "Dtn]")] = function(e, t) {
                      return e & t
                  }, r[n("0x69", "T5dY")] = function(e, t) {
                      return e - t
                  }, r[n("0x5c", "[wyj")] = function(e, t) {
                      return e >> t
                  }, r[n("0x138", "Naa&")] = function(e, t) {
                      return e - t
                  }, r[n("0x40", "Hof]")] = function(e, t) {
                      return e & t
                  }, r[n("0x52", "FVER")] = function(e, t) {
                      return e >> t
                  }, r[n("0x100", "pRbw")] = function(e, t) {
                      return e - t
                  }, r[n("0x68", "w(Dq")] = function(e, t) {
                      return e(t)
                  }, r[n("0x54", "Buip")] = function(e, t, n) {
                      return e(t, n)
                  }, r[n("0x80", "0I]C")] = function(e, t, n) {
                      return e(t, n)
                  }, r[n("0x1c", "iF%V")] = function(e, t) {
                      return e | t
                  }, r[n("0xa1", "w(Dq")] = function(e, t) {
                      return e << t
                  }, r[n("0x9b", "YD9J")] = function(e, t) {


## 写在最后

**在结束之际，我想重申的是，学习并非如攀登险峻高峰，而是如滴水穿石般的持久累积。尤其当我们步入工作岗位之后，持之以恒的学习变得愈发不易，如同在茫茫大海中独自划舟，稍有松懈便可能被巨浪吞噬。然而，对于我们程序员而言，学习是生存之本，是我们在激烈市场竞争中立于不败之地的关键。一旦停止学习，我们便如同逆水行舟，不进则退，终将被时代的洪流所淘汰。因此，不断汲取新知识，不仅是对自己的提升，更是对自己的一份珍贵投资。让我们不断磨砺自己，与时代共同进步，书写属于我们的辉煌篇章。**


需要完整版PDF学习资源私我



**网上学习资料一大堆，但如果学到的知识不成体系，遇到问题时只是浅尝辄止，不再深入研究，那么很难做到真正的技术提升。**

**[需要这份系统化资料的朋友，可以点击这里获取](https://bbs.csdn.net/topics/618540462)**

**一个人可以走的很快，但一群人才能走的更远！不论你是正从事IT行业的老鸟或是对IT行业感兴趣的新人，都欢迎加入我们的的圈子（技术交流、学习资源、职场吐槽、大厂内推、面试辅导），让我们一起学习成长！**

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