Javascript Evil Encoder

< ?php
#
/*
#
Javascript Evil Encoder
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by evilsocket
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#
http://www.evilsocket.net
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evilsocket@gmail.com
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*/
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function banner(){
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print "*-------------------------------------------------------*\n";
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print "* Javascript Evil Encoder *\n";
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print "* by evilsocket *\n";
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print "* http://www.evilsocket.net *\n";
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print "* evilsocket@gmail.com *\n";
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print "*-------------------------------------------------------*\n\n";
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}
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function help(){
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print "Usage :\n";
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print "\tphp jsencode.php \n";
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print "Example :\n";
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print "\tphp jsencode.php page.html encoded_page.html\n\n";
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}
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function rand_char(){
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$pattern = "qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM";
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return $pattern[rand(0,strlen($pattern) - 1)];
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}
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// file_put_contents for PHP <= 4
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if( function_exists('file_put_contents') == false ){
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function file_put_contents($n, $d, $flag = false) {
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$f = @fopen($n, 'w');
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if ($f === false) {
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return 0;
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} else {
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if (is_array($d)) $d = implode($d);
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$bytes_written = fwrite($f, $d);
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fclose($f);
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return $bytes_written;
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}
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}
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}
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function get_jscript( $html ){
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preg_match_all( "/\(.*)\<\/script\>/i", $html, $matches );
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return $matches[1][0];
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}
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function encode_jscript( $js ){
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$len = strlen($js);
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$buffer = "";
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$vars = array();
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for( $i = 0; $i < $len; $i++ ){
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$var = rand_char()."$i";
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$vars[] = $var;
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$buffer .= "var $var=\"" . ($js[$i] == "\"" ? "\\\"" : $js[$i]) . "\";";
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}
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$buffer .= "eval(";
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for( $i = 0; $i < $len; $i++ ){
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$buffer .= $vars[$i] . ($i < ($len - 1) ? "+" : "");
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}
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$buffer .= ");";
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return $buffer;
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}
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function encode_file( $src, $dst ){
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$html = file_get_contents($src);
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$html = str_replace( "\n", "", $html );
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$html = str_replace( "\r", "", $html );
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$js = get_jscript( $html );
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$ejs = encode_jscript( $js );
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file_put_contents( $dst, str_replace( $js, $ejs, $html ) );
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}
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banner();
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if( $argc < 3 ){
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help();
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}
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else{
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encode_file( $argv[1], $argv[2] );
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}
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#

?>




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