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<?php
/**
* This file is part of the FastFeed package.
*
* (c) Daniel González <daniel@desarrolla2.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace FastFeed\Processor;
use FastFeed\Exception\InvalidArgumentException;
use FastFeed\Item;
/**
* SanitizerProcessor
* Remove malicious HTML
*/
class SanitizerProcessor implements ProcessorInterface
{
/**
* @var HTMLPurifier
*/
protected $purifier;
/**
* @param null $cacheDirectory
*
* @throws \FastFeed\Exception\InvalidArgumentException
*/
public function __construct($cacheDirectory = null)
{
if (!$cacheDirectory) {
$cacheDirectory = realpath(sys_get_temp_dir());
}
if (!is_writable($cacheDirectory)) {
throw new InvalidArgumentException($cacheDirectory . ' is not writable');
}
// require to configure some CONSTANST
new \HTMLPurifier_Bootstrap();
$config = \HTMLPurifier_Config::createDefault();
$config->set('Cache.SerializerPath', $cacheDirectory);
$this->purifier = new \HTMLPurifier($config);
}
/**
* Execute processor
*
* @param array $items
*
* @return array
*/
public function process(array $items)
{
foreach ($items as $key => $item) {
$items[$key] = $this->doClean($item);
}
return $items;
}
/**
* @param Item $item
*
* @return string
*/
protected function doClean(Item $item)
{
$item->setIntro(
$this->purifier->purify($item->getIntro())
);
$item->setContent(
$this->purifier->purify($item->getContent())
);
return $item;
}
}