Interesting. I'll let the Monks who are more experienced with web development comment overall but I noticed the print decode_base64("PHNj.... and decided to try to decode it. It is some JavaScript(?) that has been encoded. It seems to just be doing keyword color highlighting for some program code. I first used a webpage to decode it and then the following script.
use strict;
use warnings;
use MIME::Base64 qw(decode_base64);
print decode_base64("PHNjcmlwdD5mdW5jdGlvbiBjb2xvcihjb2RlKXt2YXIgcz1bX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");
The result is:
<script>function color(code){var s=[];var c="'";return code.replace(/\
+b(case|catch|continue|do|enddo|else|elif|elseif|ifdef|ifndef|endif|fo
+r|foreach|if|fi|switch|try|typeof|while|with|break|include|require|re
+quire_once|fopen|fputs|fread|file_get_contents|file_put_contents|preg
+_replace|import|except|define|defined|undef)\b/gim,'<span>$1</span>')
+.replace(/({|})/gim,'<span>$1</span>').replace(/\b(function|sub|def|v
+oid|int|return|eval|assert|execl|execv|execve|exec|execp|die\(\))\b/g
+im,'<b><font color=#00ffff>$1</font></b>').replace(/\b(struct|exit|cl
+ass|system|print|printf|echo|sprintf|fprintf|var\s)\b/gim,'<b>$1</b>'
+).replace(/\b(0x[\da-z]+|\d+)\b/gim, '<font color=#ffa07a>$1</font>')
+.replace(/(\\x[\da-z]*)/gim, '<font color=#ffa07a>$1</font>').replace
+(/\b(http\:\/\/*\/?|https\:\/\/*\/?|ftp\:\/\/*\/?)\b/gim,'<u><font co
+lor=#fafad2>$1</u></font>').replace(/(".*?"|'.*?')/g,'<font color=#fa
+fad2>$1</font>').replace(/(\/\*.*\*\/|\/\/.*)/gim,'<font color=#69696
+9>$1</font>').replace(/(\/\*[\s\S]*?\*\/)/gim,'<font color=#696969>$1
+</font>').replace(/(^#.*$)/gim,'<b><font color=#696969>$1</font></b>'
+).replace(/(\$[_a-z0-9]*)/gim,'<b><font color=#98fb98>$1</font></b>')
+.replace(/<r(\d+)>/gim,function(match,id){var r=s[id-1];var css=r.mat
+ch(/^(\/\/|\/\*|-)/)?'comment':r.match(/^[&']/)?'string':'regexp';ret
+urn '<span class="'+css+'">'+r+'</span>';})};function changeText(){va
+r a=document.getElementById('cccodee').innerHTML;a=color(a);document.
+getElementById('cccodee').innerHTML=a;}</script>
I reformatted it slightly to try to make sense of it but I don't have the time or patience to take this any further. Good luck.
<script>
function color(code){var s=[];var c="'";
return code.replace(
/\b(case|catch|continue|do|enddo|else|elif|elseif|ifdef|ifndef|endif|f
+or|foreach|if|fi|switch|try|typeof|while|with|break|include|require|r
+equire_once|fopen|fputs|fread|file_get_contents|file_put_contents|pre
+g_replace|import|except|define|defined|undef)\b/gim,
'<span>$1</span>').replace(/({|})/gim,
'<span>$1</span>').replace(/\b(function|sub|def|void|int|return|eval|a
+ssert|execl|execv|execve|exec|execp|die\(\))\b/gim,
'<b><font color=#00ffff>$1</font></b>').replace(/\b(struct|exit|class|
+system|print|printf|echo|sprintf|fprintf|var\s)\b/gim,
'<b>$1</b>').replace(/\b(0x[\da-z]+|\d+)\b/gim,
'<font color=#ffa07a>$1</font>').replace(/(\\x[\da-z]*)/gim,
'<font color=#ffa07a>$1</font>').replace(/\b(http\:\/\/*\/?|https\:\/\
+/*\/?|ftp\:\/\/*\/?)\b/gim,
'<u><font color=#fafad2>$1</u></font>').replace(/(".*?"|'.*?')/g,
'<font color=#fafad2>$1</font>').replace(/(\/\*.*\*\/|\/\/.*)/gim,
'<font color=#696969>$1</font>').replace(/(\/\*[\s\S]*?\*\/)/gim,
'<font color=#696969>$1</font>').replace(/(^#.*$)/gim,
'<b><font color=#696969>$1</font></b>').replace(/(\$[_a-z0-9]*)/gim,
'<b><font color=#98fb98>$1</font></b>').replace(/<r(\d+)>/gim,
function(match,id){var r=s[id-1];
var css=r.match(/^(\/\/|\/\*|-)/)?'comment':r.match(/^[&']/)?'string':
+'regexp';return '<span class="'+css+'">'+r+'</span>';})};
function changeText(){var a=document.getElementById('cccodee').innerHT
+ML;
a=color(a);
document.getElementById('cccodee').innerHTML=a;}
</script>
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