Access to Wikipedia Obscured (4-Oct)

wikipedia-obscured.php

<?php
$q = $_GET["q"];
if (!$q) $q = $_GET["search"];
$q = str_replace(" ", "_", ucwords($q));
if (!$q) {
	header("location: index.php?q=Wikipedia");
	die();
}
if (file_exists("./cache/$q.html")) {
	echo file_get_contents("./cache/$q.html");
	die();
}
class JSLikeHTMLElement extends DOMElement {
	public function __set($name, $value) {
		if ($name == 'innerHTML') {
			for ($x=$this->childNodes->length-1; $x>=0; $x--) 
				$this->removeChild($this->childNodes->item($x));
			if ($value != '') {
				$f = $this->ownerDocument->createDocumentFragment();
				$result = @$f->appendXML($value);
				if ($result) if ($f->hasChildNodes()) $this->appendChild($f);
				else {
					$f = new DOMDocument();
					$value = mb_convert_encoding($value, 'HTML-ENTITIES', 'UTF-8');
					$result = @$f->loadHTML('<htmlfragment>'.$value.'</htmlfragment>');
					if ($result) {
						$import = $f->getElementsByTagName('htmlfragment')->item(0);
						foreach ($import->childNodes as $child) {
							$importedNode = $this->ownerDocument->importNode($child, true);
							$this->appendChild($importedNode);
						}
					}
				}
			}
		}
	}
	public function __get($name) {
		if ($name == 'innerHTML') {
			$inner = '';
			foreach ($this->childNodes as $child) 
				$inner .= $this->ownerDocument->saveXML($child);
			return $inner;
		}
	}
	public function __toString() {
		return '['.$this->tagName.']';
	}
}
ini_set('user_agent', 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.9) Gecko/20071025 Firefox/2.0.0.9');
$wiki = new DomDocument();
$wiki->loadHTMLFile("http://it.wikipedia.org/");
echo $wiki->saveHTML();
$wiki->registerNodeClass('DOMElement', 'JSLikeHTMLElement');
foreach ($wiki->getElementsByTagName("body")->item(0)->getElementsByTagName("script") as $i) {
	if (preg_match("/modules=site/i", $i->getAttribute("src"))) {
		$script = $wiki->createElement('script', 'window.location.replace=function(){};mediaWiki.config.set("wgUserGroups", ["sysop"]);');
		$i->parentNode->insertBefore($script, $i);
		break;
	}
}
$mwiki = new DomDocument();
$mwiki->registerNodeClass('DOMElement', 'JSLikeHTMLElement');
$mwiki->loadHTMLFile("http://it.m.wikipedia.org/wiki/$q");
$wiki->getElementById("searchform")->setAttribute("action", "index.php");
$wiki_content = $wiki->getElementById("content");
$mwiki_content = $mwiki->getElementById("content");
$mwiki->getElementById("firstHeading")->setAttribute("style", "display:block !important");
$mwiki->getElementById("bodyContent")->setAttribute("style", "display:block !important");
foreach ($mwiki->getElementsByTagName("button") as $i)
	$i->parentNode->removeChild($i);
$wiki_content->innerHTML = $mwiki_content->innerHTML;
$wiki->saveHTMLFile("./cache/$q.html");
echo file_get_contents("./cache/$q.html");
?>