silverstripe-framework/View/Parsers/PurifierHTMLCleaner.php

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<?php
namespace SilverStripe\View\Parsers;
use SilverStripe\Core\Injector\Injector;
use HTMLPurifier;
/**
* Cleans HTML using the HTMLPurifier package
* http://htmlpurifier.org/
*/
class PurifierHTMLCleaner extends HTMLCleaner
{
public function cleanHTML($content)
{
$html = new HTMLPurifier();
$doc = Injector::inst()->create('HTMLValue', $html->purify($content));
return $doc->getContent();
}
}