CodingForums.com - Javascript reflective reference

some folks say you can't.

here is a wise-guy workaround, but it's more of a joke than a real tool.
still, it might find a couple of surprises for you. window.dump? hehe
or it may hang your browser.
grab a sandwich check back later.

yes, it's a brute-force object detector. i'd never seen one before. this is just a proof of concept. i want a scalable distributed version.

Code:

var mystery=window; //"hello world"  false [1,2,3]  

var d1=+new Date;

r=[""];for(var i2=97; i2< 123;i2++){r.push(String.fromCharCode(i2));}

r[-1]="";

var s=r.join("");

var s0=0, s1=0, s2=0, s3=0, s4=0, s5=0, s6=0, s7=0, s8=0, n=27;

window.p={};



 window.k6="";

 window.k4="";

 var k1, k2, k3, k5;

 c=[0,0,0,0,0,0,0,0,0,0];



function runOne(){

 var i=0, x;

for(s0=c[0];s0<n;++s0){

for(s1=c[1];s1<n;s1++){ 

for(s2=c[2];s2<n;s2++){

for(s3=c[3];s3<n;s3++){ 

 if(i++>19){ c=[s0,s1?s1-1:0, s2?s2-1:0,s3?s3-1:0,0,0,0];  report(); return setTimeout(runOne, 750);  }

for(s4=c[4];s4<n;s4++){ k4=r[s0]+r[s1]+r[s2]+r[s3]+r[s4];

for(s5=c[5];s5<n;s5++){ k5=k4+r[s5];

for(s6=c[6];s6<n;s6++){ k6=k5+r[s6];

  if( (x=mystery[k6])!==undefined ) { p[k6]=String(x); }

}}}}}}}



 

 var d2= +new Date;

 console.log(document.title="done. found "+Object.keys(p).length +" properties in "+ (d2-d1)+"ms" );



}//end runOne()



function report(){

    document.body.innerHTML="<pre>"+JSON.stringify(p, null, "\t");

}



runOne()

it misses anything with a number or uppercase letter. that slows it down even more...

after about 30 seconds, it had found this when run on this page using firebug:

Code:

  {

        "c": "0,0,0,0,0,0,0,0,0,0",

        "i": "16",

        "n": "27",

        "p": "[object Object]",

        "r": ",a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z",

        "s": "abcdefghijklmnopqrstuvwxyz",

        "ltr": "left",

        "top": "[object Window]",

        "who": "function who(A) {\n    return openWindow(\"misc.php?\" + SESSIONURL + \"do=whoposted&t=\" + A, 230, 300);\n}",

        "atob": "function atob() {\n    [native code]\n}",

        "back": "function back() {\n    [native code]\n}",

        "blur": "function blur() {\n    [native code]\n}",

        "btoa": "function btoa() {\n    [native code]\n}",

        "dump": "function dump() {\n    [native code]\n}",

        "eval": "function eval() {\n    [native code]\n}",

        "find": "function find() {\n    [native code]\n}",

        "gapi": "[object Object]",

        "home": "function home() {\n    [native code]\n}",

        "java": "[Java Package \"java\"]",

        "name": "",

        "open": "function open() {\n    [native code]\n}",

        "self": "[object Window]",

        "stop": "function stop() {\n    [native code]\n}"

}

i wrote this just this weekend. this one is 7 chars, and the code got away from me, so it's a little sloppy. the 4 chars was fast and stable, but limited.

real answer: i think firebug is easier.