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如何“解码” HTML 中有些混淆的 JavaScript？

发布于 2024-12-14 22:34:48 字数 1909 浏览 0 评论 0 原文

下面是一个例子：

eval(function(p,a,c,k,e,d){e=function(c){return(c<a?'':e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--){d[e(c)]=k[c]||e(c)}k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1};while(c--){if(k[c]){p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c])}}return p}('4.h={H:9(d){T 7.F(9(){g 1=7;1.3={8:4(d.8,7),i:4(d.i,7),m:4.z.J(7),5:d.5,t:d.t,j:d.j,K:d.K,b:d.b,A:d.A};4.h.s(1,0);4(S).v(\'W\',9(){1.3.m=4.z.J(1);4.h.s(1,0);4.h.E(1)});4.h.E(1);1.3.8.v(\'O\',9(){4(1.3.t,7).l(0).a.I=\'P\'}).v(\'R\',9(){4(1.3.t,7).l(0).a.I=\'11\'});4(Z).v(\'10\',9(e){g p=4.z.Y(e);g c=0;k(1.3.b&&1.3.b==\'L\')g r=p.x-1.3.m.x-(1.w-1.3.5*1.3.8.n())/2-1.3.5/2;u k(1.3.b&&1.3.b==\'N\')g r=p.x-1.3.m.x-1.w+1.3.5*1.3.8.n();u g r=p.x-1.3.m.x;g M=B.G(p.y-1.3.m.y-1.X/2,2);1.3.8.F(9(q){6=B.Q(B.G(r-q*1.3.5,2)+M);6-=1.3.5/2;6=6<0?0:6;6=6>1.3.j?1.3.j:6;6=1.3.j-6;C=1.3.A*6/1.3.j;7.a.D=1.3.5+C+\'f\';7.a.o=1.3.5*q+c+\'f\';c+=C});4.h.s(1,c)})})},s:9(1,c){k(1.3.b)k(1.3.b==\'L\')1.3.i.l(0).a.o=(1.w-1.3.5*1.3.8.n())/2-c/2+\'f\';u k(1.3.b==\'o\')1.3.i.l(0).a.o=-c/1.3.8.n()+\'f\';u k(1.3.b==\'N\')1.3.i.l(0).a.o=(1.w-1.3.5*1.3.8.n())-c/2+\'f\';1.3.i.l(0).a.D=1.3.5*1.3.8.n()+c+\'f\'},E:9(1){1.3.8.F(9(q){7.a.D=1.3.5+\'f\';7.a.o=1.3.5*q+\'f\'})}};4.V.U=4.h.H;',62,64,'|el||fisheyeCfg|jQuery|itemWidth|distance|this|items|function|style|halign|toAdd|options||px|var|iFisheye|container|proximity|if|get|pos|size|left|pointer|nr|posx|positionContainer|itemsText|else|bind|offsetWidth|||iUtil|maxWidth|Math|extraWidth|width|positionItems|each|pow|build|display|getPosition|valign|center|posy|right|mouseover|block|sqrt|mouseout|window|return|Fisheye|fn|resize|offsetHeight|getPointer|document|mousemove|none'.split('|'),0,{}))

显然，这段代码是故意编写的，目的是为了迷惑其他人。我如何理解它并用简单的代码重写它？

有一些工具可以完成这项工作吗？这在 HTML 中很常见。

原文

Here is one example:

eval(function(p,a,c,k,e,d){e=function(c){return(c<a?'':e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--){d[e(c)]=k[c]||e(c)}k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1};while(c--){if(k[c]){p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c])}}return p}('4.h={H:9(d){T 7.F(9(){g 1=7;1.3={8:4(d.8,7),i:4(d.i,7),m:4.z.J(7),5:d.5,t:d.t,j:d.j,K:d.K,b:d.b,A:d.A};4.h.s(1,0);4(S).v(\'W\',9(){1.3.m=4.z.J(1);4.h.s(1,0);4.h.E(1)});4.h.E(1);1.3.8.v(\'O\',9(){4(1.3.t,7).l(0).a.I=\'P\'}).v(\'R\',9(){4(1.3.t,7).l(0).a.I=\'11\'});4(Z).v(\'10\',9(e){g p=4.z.Y(e);g c=0;k(1.3.b&&1.3.b==\'L\')g r=p.x-1.3.m.x-(1.w-1.3.5*1.3.8.n())/2-1.3.5/2;u k(1.3.b&&1.3.b==\'N\')g r=p.x-1.3.m.x-1.w+1.3.5*1.3.8.n();u g r=p.x-1.3.m.x;g M=B.G(p.y-1.3.m.y-1.X/2,2);1.3.8.F(9(q){6=B.Q(B.G(r-q*1.3.5,2)+M);6-=1.3.5/2;6=6<0?0:6;6=6>1.3.j?1.3.j:6;6=1.3.j-6;C=1.3.A*6/1.3.j;7.a.D=1.3.5+C+\'f\';7.a.o=1.3.5*q+c+\'f\';c+=C});4.h.s(1,c)})})},s:9(1,c){k(1.3.b)k(1.3.b==\'L\')1.3.i.l(0).a.o=(1.w-1.3.5*1.3.8.n())/2-c/2+\'f\';u k(1.3.b==\'o\')1.3.i.l(0).a.o=-c/1.3.8.n()+\'f\';u k(1.3.b==\'N\')1.3.i.l(0).a.o=(1.w-1.3.5*1.3.8.n())-c/2+\'f\';1.3.i.l(0).a.D=1.3.5*1.3.8.n()+c+\'f\'},E:9(1){1.3.8.F(9(q){7.a.D=1.3.5+\'f\';7.a.o=1.3.5*q+\'f\'})}};4.V.U=4.h.H;',62,64,'|el||fisheyeCfg|jQuery|itemWidth|distance|this|items|function|style|halign|toAdd|options||px|var|iFisheye|container|proximity|if|get|pos|size|left|pointer|nr|posx|positionContainer|itemsText|else|bind|offsetWidth|||iUtil|maxWidth|Math|extraWidth|width|positionItems|each|pow|build|display|getPosition|valign|center|posy|right|mouseover|block|sqrt|mouseout|window|return|Fisheye|fn|resize|offsetHeight|getPointer|document|mousemove|none'.split('|'),0,{}))

Obviously, this code is intentionally written to confuse other people. How can I understand it and rewrite it in simple code?

Is there some tool for this job? This is very common in HTML.

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评论（4）

内心激荡 2024-12-21 22:34:48

这不是“加密”，只是混淆了。

是的，有可以提供帮助的工具，但它不是这不是一个完美的过程。所有原始变量名称和注释以及其他内容都消失了，因此工具无法真正将这些内容添加回来。您必须自己弄清楚详细信息，但工具可以使其变得更容易。

This is not "encrypted", it is just obfuscated.

Yes, there are tools available to help, but it isn't a perfect process. All of the original variable names and comments and what not are gone, so a tool can't really add that stuff back in. You have to figure out the details yourself, but a tool can make it easier.

回复 原文
风吹雪碎 2024-12-21 22:34:48

我希望人们停止这样做。没有办法“加密”JavaScript。这是徒劳的练习（缩小是好的，但混淆是坏的且无用的）

话虽如此，请尝试使用 JSBeautifier。它给了我以下结果：

jQuery.iFisheye = {
    build: function (options) {
        return this.each(function () {
            var el = this;
            el.fisheyeCfg = {
                items: jQuery(options.items, this),
                container: jQuery(options.container, this),
                pos: jQuery.iUtil.getPosition(this),
                itemWidth: options.itemWidth,
                itemsText: options.itemsText,
                proximity: options.proximity,
                valign: options.valign,
                halign: options.halign,
                maxWidth: options.maxWidth
            };
            jQuery.iFisheye.positionContainer(el, 0);
            jQuery(window).bind('resize', function () {
                el.fisheyeCfg.pos = jQuery.iUtil.getPosition(el);
                jQuery.iFisheye.positionContainer(el, 0);
                jQuery.iFisheye.positionItems(el)
            });
            jQuery.iFisheye.positionItems(el);
            el.fisheyeCfg.items.bind('mouseover', function () {
                jQuery(el.fisheyeCfg.itemsText, this).get(0).style.display = 'block'
            }).bind('mouseout', function () {
                jQuery(el.fisheyeCfg.itemsText, this).get(0).style.display = 'none'
            });
            jQuery(document).bind('mousemove', function (e) {
                var pointer = jQuery.iUtil.getPointer(e);
                var toAdd = 0;
                if (el.fisheyeCfg.halign && el.fisheyeCfg.halign == 'center') var posx = pointer.x - el.fisheyeCfg.pos.x - (el.offsetWidth - el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size()) / 2 - el.fisheyeCfg.itemWidth / 2;
                else if (el.fisheyeCfg.halign && el.fisheyeCfg.halign == 'right') var posx = pointer.x - el.fisheyeCfg.pos.x - el.offsetWidth + el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size();
                else var posx = pointer.x - el.fisheyeCfg.pos.x;
                var posy = Math.pow(pointer.y - el.fisheyeCfg.pos.y - el.offsetHeight / 2, 2);
                el.fisheyeCfg.items.each(function (nr) {
                    distance = Math.sqrt(Math.pow(posx - nr * el.fisheyeCfg.itemWidth, 2) + posy);
                    distance -= el.fisheyeCfg.itemWidth / 2;
                    distance = distance < 0 ? 0 : distance;
                    distance = distance > el.fisheyeCfg.proximity ? el.fisheyeCfg.proximity : distance;
                    distance = el.fisheyeCfg.proximity - distance;
                    extraWidth = el.fisheyeCfg.maxWidth * distance / el.fisheyeCfg.proximity;
                    this.style.width = el.fisheyeCfg.itemWidth + extraWidth + 'px';
                    this.style.left = el.fisheyeCfg.itemWidth * nr + toAdd + 'px';
                    toAdd += extraWidth
                });
                jQuery.iFisheye.positionContainer(el, toAdd)
            })
        })
    },
    positionContainer: function (el, toAdd) {
        if (el.fisheyeCfg.halign) if (el.fisheyeCfg.halign == 'center') el.fisheyeCfg.container.get(0).style.left = (el.offsetWidth - el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size()) / 2 - toAdd / 2 + 'px';
        else if (el.fisheyeCfg.halign == 'left') el.fisheyeCfg.container.get(0).style.left = -toAdd / el.fisheyeCfg.items.size() + 'px';
        else if (el.fisheyeCfg.halign == 'right') el.fisheyeCfg.container.get(0).style.left = (el.offsetWidth - el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size()) - toAdd / 2 + 'px';
        el.fisheyeCfg.container.get(0).style.width = el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size() + toAdd + 'px'
    },
    positionItems: function (el) {
        el.fisheyeCfg.items.each(function (nr) {
            this.style.width = el.fisheyeCfg.itemWidth + 'px';
            this.style.left = el.fisheyeCfg.itemWidth * nr + 'px'
        })
    }
};
jQuery.fn.Fisheye = jQuery.iFisheye.build;

其他​​链接（从同一页面提升）：

I wish people would stop doing that. There's just no way to "encrypt" JavaScript. It's an exercise in futility (minification is good, but obfuscation is bad and useless)

That being said, try using JSBeautifier. It gives me the following result:

jQuery.iFisheye = {
    build: function (options) {
        return this.each(function () {
            var el = this;
            el.fisheyeCfg = {
                items: jQuery(options.items, this),
                container: jQuery(options.container, this),
                pos: jQuery.iUtil.getPosition(this),
                itemWidth: options.itemWidth,
                itemsText: options.itemsText,
                proximity: options.proximity,
                valign: options.valign,
                halign: options.halign,
                maxWidth: options.maxWidth
            };
            jQuery.iFisheye.positionContainer(el, 0);
            jQuery(window).bind('resize', function () {
                el.fisheyeCfg.pos = jQuery.iUtil.getPosition(el);
                jQuery.iFisheye.positionContainer(el, 0);
                jQuery.iFisheye.positionItems(el)
            });
            jQuery.iFisheye.positionItems(el);
            el.fisheyeCfg.items.bind('mouseover', function () {
                jQuery(el.fisheyeCfg.itemsText, this).get(0).style.display = 'block'
            }).bind('mouseout', function () {
                jQuery(el.fisheyeCfg.itemsText, this).get(0).style.display = 'none'
            });
            jQuery(document).bind('mousemove', function (e) {
                var pointer = jQuery.iUtil.getPointer(e);
                var toAdd = 0;
                if (el.fisheyeCfg.halign && el.fisheyeCfg.halign == 'center') var posx = pointer.x - el.fisheyeCfg.pos.x - (el.offsetWidth - el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size()) / 2 - el.fisheyeCfg.itemWidth / 2;
                else if (el.fisheyeCfg.halign && el.fisheyeCfg.halign == 'right') var posx = pointer.x - el.fisheyeCfg.pos.x - el.offsetWidth + el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size();
                else var posx = pointer.x - el.fisheyeCfg.pos.x;
                var posy = Math.pow(pointer.y - el.fisheyeCfg.pos.y - el.offsetHeight / 2, 2);
                el.fisheyeCfg.items.each(function (nr) {
                    distance = Math.sqrt(Math.pow(posx - nr * el.fisheyeCfg.itemWidth, 2) + posy);
                    distance -= el.fisheyeCfg.itemWidth / 2;
                    distance = distance < 0 ? 0 : distance;
                    distance = distance > el.fisheyeCfg.proximity ? el.fisheyeCfg.proximity : distance;
                    distance = el.fisheyeCfg.proximity - distance;
                    extraWidth = el.fisheyeCfg.maxWidth * distance / el.fisheyeCfg.proximity;
                    this.style.width = el.fisheyeCfg.itemWidth + extraWidth + 'px';
                    this.style.left = el.fisheyeCfg.itemWidth * nr + toAdd + 'px';
                    toAdd += extraWidth
                });
                jQuery.iFisheye.positionContainer(el, toAdd)
            })
        })
    },
    positionContainer: function (el, toAdd) {
        if (el.fisheyeCfg.halign) if (el.fisheyeCfg.halign == 'center') el.fisheyeCfg.container.get(0).style.left = (el.offsetWidth - el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size()) / 2 - toAdd / 2 + 'px';
        else if (el.fisheyeCfg.halign == 'left') el.fisheyeCfg.container.get(0).style.left = -toAdd / el.fisheyeCfg.items.size() + 'px';
        else if (el.fisheyeCfg.halign == 'right') el.fisheyeCfg.container.get(0).style.left = (el.offsetWidth - el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size()) - toAdd / 2 + 'px';
        el.fisheyeCfg.container.get(0).style.width = el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size() + toAdd + 'px'
    },
    positionItems: function (el) {
        el.fisheyeCfg.items.each(function (nr) {
            this.style.width = el.fisheyeCfg.itemWidth + 'px';
            this.style.left = el.fisheyeCfg.itemWidth * nr + 'px'
        })
    }
};
jQuery.fn.Fisheye = jQuery.iFisheye.build;

Other links (lifted from the very same page):

回复 原文
菊凝晚露 2024-12-21 22:34:48

使用此问题中提到的解包器之一：

您可以将打包的 javascript 解压为以下代码：

jQuery.iFisheye = {
    build: function (options) {
        return this.each(function () {
            var el = this;
            el.fisheyeCfg = {
                items: jQuery(options.items, this),
                container: jQuery(options.container, this),
                pos: jQuery.iUtil.getPosition(this),
                itemWidth: options.itemWidth,
                itemsText: options.itemsText,
                proximity: options.proximity,
                valign: options.valign,
                halign: options.halign,
                maxWidth: options.maxWidth
            };
            jQuery.iFisheye.positionContainer(el, 0);
            jQuery(window).bind('resize', function () {
                el.fisheyeCfg.pos = jQuery.iUtil.getPosition(el);
                jQuery.iFisheye.positionContainer(el, 0);
                jQuery.iFisheye.positionItems(el)
            });
            jQuery.iFisheye.positionItems(el);
            el.fisheyeCfg.items.bind('mouseover', function () {
                jQuery(el.fisheyeCfg.itemsText, this).get(0).style.display = 'block'
            }).bind('mouseout', function () {
                jQuery(el.fisheyeCfg.itemsText, this).get(0).style.display = 'none'
            });
            jQuery(document).bind('mousemove', function (e) {
                var pointer = jQuery.iUtil.getPointer(e);
                var toAdd = 0;
                if (el.fisheyeCfg.halign && el.fisheyeCfg.halign == 'center') var posx = pointer.x - el.fisheyeCfg.pos.x - (el.offsetWidth - el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size()) / 2 - el.fisheyeCfg.itemWidth / 2;
                else if (el.fisheyeCfg.halign && el.fisheyeCfg.halign == 'right') var posx = pointer.x - el.fisheyeCfg.pos.x - el.offsetWidth + el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size();
                else var posx = pointer.x - el.fisheyeCfg.pos.x;
                var posy = Math.pow(pointer.y - el.fisheyeCfg.pos.y - el.offsetHeight / 2, 2);
                el.fisheyeCfg.items.each(function (nr) {
                    distance = Math.sqrt(Math.pow(posx - nr * el.fisheyeCfg.itemWidth, 2) + posy);
                    distance -= el.fisheyeCfg.itemWidth / 2;
                    distance = distance < 0 ? 0 : distance;
                    distance = distance > el.fisheyeCfg.proximity ? el.fisheyeCfg.proximity : distance;
                    distance = el.fisheyeCfg.proximity - distance;
                    extraWidth = el.fisheyeCfg.maxWidth * distance / el.fisheyeCfg.proximity;
                    this.style.width = el.fisheyeCfg.itemWidth + extraWidth + 'px';
                    this.style.left = el.fisheyeCfg.itemWidth * nr + toAdd + 'px';
                    toAdd += extraWidth
                });
                jQuery.iFisheye.positionContainer(el, toAdd)
            })
        })
    },
    positionContainer: function (el, toAdd) {
        if (el.fisheyeCfg.halign) if (el.fisheyeCfg.halign == 'center') el.fisheyeCfg.container.get(0).style.left = (el.offsetWidth - el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size()) / 2 - toAdd / 2 + 'px';
        else if (el.fisheyeCfg.halign == 'left') el.fisheyeCfg.container.get(0).style.left = -toAdd / el.fisheyeCfg.items.size() + 'px';
        else if (el.fisheyeCfg.halign == 'right') el.fisheyeCfg.container.get(0).style.left = (el.offsetWidth - el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size()) - toAdd / 2 + 'px';
        el.fisheyeCfg.container.get(0).style.width = el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size() + toAdd + 'px'
    },
    positionItems: function (el) {
        el.fisheyeCfg.items.each(function (nr) {
            this.style.width = el.fisheyeCfg.itemWidth + 'px';
            this.style.left = el.fisheyeCfg.itemWidth * nr + 'px'
        })
    }
};
jQuery.fn.Fisheye = jQuery.iFisheye.build;

Using one of the unpackers mentioned on this question:

you can unpack the packed javascript to the following code: 

jQuery.iFisheye = {
    build: function (options) {
        return this.each(function () {
            var el = this;
            el.fisheyeCfg = {
                items: jQuery(options.items, this),
                container: jQuery(options.container, this),
                pos: jQuery.iUtil.getPosition(this),
                itemWidth: options.itemWidth,
                itemsText: options.itemsText,
                proximity: options.proximity,
                valign: options.valign,
                halign: options.halign,
                maxWidth: options.maxWidth
            };
            jQuery.iFisheye.positionContainer(el, 0);
            jQuery(window).bind('resize', function () {
                el.fisheyeCfg.pos = jQuery.iUtil.getPosition(el);
                jQuery.iFisheye.positionContainer(el, 0);
                jQuery.iFisheye.positionItems(el)
            });
            jQuery.iFisheye.positionItems(el);
            el.fisheyeCfg.items.bind('mouseover', function () {
                jQuery(el.fisheyeCfg.itemsText, this).get(0).style.display = 'block'
            }).bind('mouseout', function () {
                jQuery(el.fisheyeCfg.itemsText, this).get(0).style.display = 'none'
            });
            jQuery(document).bind('mousemove', function (e) {
                var pointer = jQuery.iUtil.getPointer(e);
                var toAdd = 0;
                if (el.fisheyeCfg.halign && el.fisheyeCfg.halign == 'center') var posx = pointer.x - el.fisheyeCfg.pos.x - (el.offsetWidth - el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size()) / 2 - el.fisheyeCfg.itemWidth / 2;
                else if (el.fisheyeCfg.halign && el.fisheyeCfg.halign == 'right') var posx = pointer.x - el.fisheyeCfg.pos.x - el.offsetWidth + el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size();
                else var posx = pointer.x - el.fisheyeCfg.pos.x;
                var posy = Math.pow(pointer.y - el.fisheyeCfg.pos.y - el.offsetHeight / 2, 2);
                el.fisheyeCfg.items.each(function (nr) {
                    distance = Math.sqrt(Math.pow(posx - nr * el.fisheyeCfg.itemWidth, 2) + posy);
                    distance -= el.fisheyeCfg.itemWidth / 2;
                    distance = distance < 0 ? 0 : distance;
                    distance = distance > el.fisheyeCfg.proximity ? el.fisheyeCfg.proximity : distance;
                    distance = el.fisheyeCfg.proximity - distance;
                    extraWidth = el.fisheyeCfg.maxWidth * distance / el.fisheyeCfg.proximity;
                    this.style.width = el.fisheyeCfg.itemWidth + extraWidth + 'px';
                    this.style.left = el.fisheyeCfg.itemWidth * nr + toAdd + 'px';
                    toAdd += extraWidth
                });
                jQuery.iFisheye.positionContainer(el, toAdd)
            })
        })
    },
    positionContainer: function (el, toAdd) {
        if (el.fisheyeCfg.halign) if (el.fisheyeCfg.halign == 'center') el.fisheyeCfg.container.get(0).style.left = (el.offsetWidth - el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size()) / 2 - toAdd / 2 + 'px';
        else if (el.fisheyeCfg.halign == 'left') el.fisheyeCfg.container.get(0).style.left = -toAdd / el.fisheyeCfg.items.size() + 'px';
        else if (el.fisheyeCfg.halign == 'right') el.fisheyeCfg.container.get(0).style.left = (el.offsetWidth - el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size()) - toAdd / 2 + 'px';
        el.fisheyeCfg.container.get(0).style.width = el.fisheyeCfg.itemWidth * el.fisheyeCfg.items.size() + toAdd + 'px'
    },
    positionItems: function (el) {
        el.fisheyeCfg.items.each(function (nr) {
            this.style.width = el.fisheyeCfg.itemWidth + 'px';
            this.style.left = el.fisheyeCfg.itemWidth * nr + 'px'
        })
    }
};
jQuery.fn.Fisheye = jQuery.iFisheye.build;
回复 原文
煮茶煮酒煮时光 2024-12-21 22:34:48

在这种情况下，您可以在这里获取原始来源：http://interface.eyecon.ro/download 。它并不是真正的“混淆”，因为目标并不是真正的混淆；相反，目标是“压缩”（缩小），而实现这一目标的工具是压缩器/混淆器。

（当然，其他人提到的工具在这里是必不可少的。我使用jsbeautifier.org发现整个事情都是对jQuery.iFisheye的赋值，然后它告诉我要Google什么才能找到多于。）

In this case, you can get the original source here: http://interface.eyecon.ro/download. It's not really "obfuscated", in that the goal wasn't really obfuscation; rather, the goal was "compression" (minification), and the tool for that was a compressor/obfuscator.

(Of course, the tools that everyone else mentions are indispensable here. I used jsbeautifier.org to find that the whole thing is an assignment to jQuery.iFisheye, which then told me what to Google to find the above.)

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