爬虫反爬之代码混淆，特殊编码，表情编码

2023-12-25 19:44:08

不知道你是否见过这样的代码，完全看不懂。

在这里插入图片描述

大家好，这一集我们来看一下前端反爬的代码混淆，一般啊我们自己写的前端代码都是直接上传公开的，如果用的不是框架打包出来的代码，就是自己写的js，html文件没有经过处理直接上传的话，所有的代码注释，变量名函数名都是别人可以直接打开开发者工具直接看到的。

如果自己功底不深的话，可能一些英文变量名demo1，demo2.函数名fun1，fun2什么的这些命名很明显不符合规范，可能就会让别的程序员笑话。程序员届有句话说的是，程序员的代码就是底裤，肯定不是别人想看就看的。好的代码想看可以，不好的代码想看想都别想。

代码压缩：寻找一些工具，也可以对自己的代码变量名进行了混淆，都变成了十六进制形式的字符串，因为启用了一些默认压缩和混淆配置
变量名混淆：将变量名替换为十六进制形式的字符串，如0xaabc123，或者是简化变量名为a, b, c
字符串混淆：将一个字符串声明放在一个数组里，使之无法被直接搜到，
禁用控制台输出：使用 disableConsoleOutput 来禁用掉 console.log 输出功能，加大调试难度
特殊编码：jsfuck，https://jsfuck.com/，aaencode，jjencode，https://www.toolkk.com/tools/aaencode-encode-decode

这些特殊编码都得益于js强大的类型转换，

所以说我们甚至可以将我们的所有代码转化为jsfuck，这样的话有人要想扣加密代码肯定看不懂代码，需要先解码一下。

同样的，开发人员自己也看不懂了，也不利于调试。

所以肯定不是全篇加密，但是一些小片段加密的话对于我们这种个人小团队开发来说肯定是可以玩玩的。

加密代码示例：

<!DOCTYPE html>
<body>
	代码混淆
<script>
// 利用jsfuck加密代码为颜文字
// 输出jsfuck
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// 利用aaencode加密代码为颜文字
// 输出aaencode
ﾟωﾟﾉ= /｀ｍ′）ﾉ ~┻━┻   //*′?｀*/ ['_']; o=(ﾟｰﾟ)  =_=3; c=(ﾟΘﾟ) =(ﾟｰﾟ)-(ﾟｰﾟ); (ﾟДﾟ) =(ﾟΘﾟ)= (o^_^o)/ (o^_^o);(ﾟДﾟ)={ﾟΘﾟ: '_' ,ﾟωﾟﾉ : ((ﾟωﾟﾉ==3) +'_') [ﾟΘﾟ] ,ﾟｰﾟﾉ :(ﾟωﾟﾉ+ '_')[o^_^o -(ﾟΘﾟ)] ,ﾟДﾟﾉ:((ﾟｰﾟ==3) +'_')[ﾟｰﾟ] }; (ﾟДﾟ) [ﾟΘﾟ] =((ﾟωﾟﾉ==3) +'_') [c^_^o];(ﾟДﾟ) ['c'] = ((ﾟДﾟ)+'_') [ (ﾟｰﾟ)+(ﾟｰﾟ)-(ﾟΘﾟ) ];(ﾟДﾟ) ['o'] = ((ﾟДﾟ)+'_') [ﾟΘﾟ];(ﾟoﾟ)=(ﾟДﾟ) ['c']+(ﾟДﾟ) ['o']+(ﾟωﾟﾉ +'_')[ﾟΘﾟ]+ ((ﾟωﾟﾉ==3) +'_') [ﾟｰﾟ] + ((ﾟДﾟ) +'_') [(ﾟｰﾟ)+(ﾟｰﾟ)]+ ((ﾟｰﾟ==3) +'_') [ﾟΘﾟ]+((ﾟｰﾟ==3) +'_') [(ﾟｰﾟ) - (ﾟΘﾟ)]+(ﾟДﾟ) ['c']+((ﾟДﾟ)+'_') [(ﾟｰﾟ)+(ﾟｰﾟ)]+ (ﾟДﾟ) ['o']+((ﾟｰﾟ==3) +'_') [ﾟΘﾟ];(ﾟДﾟ) ['_'] =(o^_^o) [ﾟoﾟ] [ﾟoﾟ];(ﾟεﾟ)=((ﾟｰﾟ==3) +'_') [ﾟΘﾟ]+ (ﾟДﾟ) .ﾟДﾟﾉ+((ﾟДﾟ)+'_') [(ﾟｰﾟ) + (ﾟｰﾟ)]+((ﾟｰﾟ==3) +'_') [o^_^o -ﾟΘﾟ]+((ﾟｰﾟ==3) +'_') [ﾟΘﾟ]+ (ﾟωﾟﾉ +'_') [ﾟΘﾟ]; (ﾟｰﾟ)+=(ﾟΘﾟ); (ﾟДﾟ)[ﾟεﾟ]='\\'; (ﾟДﾟ).ﾟΘﾟﾉ=(ﾟДﾟ+ ﾟｰﾟ)[o^_^o -(ﾟΘﾟ)];(oﾟｰﾟo)=(ﾟωﾟﾉ +'_')[c^_^o];(ﾟДﾟ) [ﾟoﾟ]='\"';(ﾟДﾟ) ['_'] ( (ﾟДﾟ) ['_'] (ﾟεﾟ+/*′?｀*/(ﾟДﾟ)[ﾟoﾟ]+ (ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+(ﾟｰﾟ)+(o^_^o)+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+((ﾟｰﾟ) + (ﾟΘﾟ))+((ﾟｰﾟ) + (o^_^o))+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+((ﾟｰﾟ) + (ﾟΘﾟ))+((o^_^o) +(o^_^o))+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+((o^_^o) +(o^_^o))+(o^_^o)+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+((ﾟｰﾟ) + (ﾟΘﾟ))+((ﾟｰﾟ) + (o^_^o))+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+((ﾟｰﾟ) + (ﾟΘﾟ))+(ﾟｰﾟ)+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+(ﾟｰﾟ)+((ﾟｰﾟ) + (ﾟΘﾟ))+(ﾟДﾟ)[ﾟεﾟ]+((ﾟｰﾟ) + (ﾟΘﾟ))+((o^_^o) +(o^_^o))+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+((ﾟｰﾟ) + (ﾟΘﾟ))+(ﾟｰﾟ)+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+((ﾟｰﾟ) + (ﾟΘﾟ))+((ﾟｰﾟ) + (o^_^o))+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+(ﾟｰﾟ)+((ﾟｰﾟ) + (o^_^o))+(ﾟДﾟ)[ﾟεﾟ]+((ﾟｰﾟ) + (ﾟΘﾟ))+(c^_^o)+(ﾟДﾟ)[ﾟεﾟ]+(ﾟｰﾟ)+((ﾟｰﾟ) + (o^_^o))+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+(ﾟｰﾟ)+(ﾟΘﾟ)+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+(ﾟｰﾟ)+(ﾟΘﾟ)+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+(ﾟｰﾟ)+((ﾟｰﾟ) + (ﾟΘﾟ))+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+((ﾟｰﾟ) + (ﾟΘﾟ))+((o^_^o) +(o^_^o))+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+(ﾟｰﾟ)+(o^_^o)+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+((ﾟｰﾟ) + (ﾟΘﾟ))+((ﾟｰﾟ) + (o^_^o))+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+(ﾟｰﾟ)+(ﾟｰﾟ)+(ﾟДﾟ)[ﾟεﾟ]+(ﾟΘﾟ)+(ﾟｰﾟ)+((ﾟｰﾟ) + (ﾟΘﾟ))+(ﾟДﾟ)[ﾟεﾟ]+(ﾟｰﾟ)+((ﾟｰﾟ) + (o^_^o))+(ﾟДﾟ)[ﾟεﾟ]+((ﾟｰﾟ) + (ﾟΘﾟ))+(ﾟΘﾟ)+(ﾟДﾟ)[ﾟoﾟ]) (ﾟΘﾟ)) ('_');
// 利用jjencode加密代码为颜文字
// 输出jjencode
$=~[];$={___:++$,$$$$:(![]+"")[$],__$:++$,$_$_:(![]+"")[$],_$_:++$,$_$$:({}+"")[$],$$_$:($[$]+"")[$],_$$:++$,$$$_:(!""+"")[$],$__:++$,$_$:++$,$$__:({}+"")[$],$$_:++$,$$$:++$,$___:++$,$__$:++$};$.$_=($.$_=$+"")[$.$_$]+($._$=$.$_[$.__$])+($.$$=($.$+"")[$.__$])+((!$)+"")[$._$$]+($.__=$.$_[$.$$_])+($.$=(!""+"")[$.__$])+($._=(!""+"")[$._$_])+$.$_[$.$_$]+$.__+$._$+$.$;$.$$=$.$+(!""+"")[$._$$]+$.__+$._+$.$+$.$$;$.$=($.___)[$.$_][$.$_];$.$($.$($.$$+"\""+$.$$__+$._$+"\\"+$.__$+$.$_$+$.$$_+"\\"+$.__$+$.$$_+$._$$+$._$+(![]+"")[$._$_]+$.$$$_+"."+(![]+"")[$._$_]+$._$+"\\"+$.__$+$.$__+$.$$$+"('\\"+$.__$+$.$_$+$._$_+"\\"+$.__$+$.$_$+$._$_+$.$$$_+"\\"+$.__$+$.$_$+$.$$_+$.$$__+$._$+$.$$_$+$.$$$_+"')"+"\"")())();
</script>
</body>

视频讲解：https://www.bilibili.com/video/BV1ZC4y1K7jw/

总结

🐋 🐬 🐶 🐳 🐰 🦀?? ? 👉 👀

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爬虫反爬之代码混淆，特殊编码，表情编码

加密代码示例：

总结

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