Evan Prodromou 81ea0f8117 Add HTMLPurifier to extlib
HTMLPurifier defangs arbitrary submitted HTML. We're using it in the
OStatus plugin, but it may be valuable for other parts of the codebase
(I think OEmbed might benefit, for example).
2010-02-20 11:35:01 -05:00

40 lines
975 B
PHP

<?php
/**
* This is in almost every respect equivalent to an array except
* that it keeps track of which keys were accessed.
*
* @warning For the sake of backwards compatibility with early versions
* of PHP 5, you must not use the $hash[$key] syntax; if you do
* our version of offsetGet is never called.
*/
class HTMLPurifier_StringHash extends ArrayObject
{
protected $accessed = array();
/**
* Retrieves a value, and logs the access.
*/
public function offsetGet($index) {
$this->accessed[$index] = true;
return parent::offsetGet($index);
}
/**
* Returns a lookup array of all array indexes that have been accessed.
* @return Array in form array($index => true).
*/
public function getAccessed() {
return $this->accessed;
}
/**
* Resets the access array.
*/
public function resetAccessed() {
$this->accessed = array();
}
}
// vim: et sw=4 sts=4