mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-11-23 07:18:41 +00:00
58 lines
1.6 KiB
PHP
58 lines
1.6 KiB
PHP
|
<?php
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Component of HTMLPurifier_AttrContext that accumulates IDs to prevent dupes
|
||
|
|
* @note In Slashdot-speak, dupe means duplicate.
|
||
|
|
* @note The default constructor does not accept $config or $context objects:
|
||
|
|
* use must use the static build() factory method to perform initialization.
|
||
|
|
*/
|
||
|
|
class HTMLPurifier_IDAccumulator
|
||
|
|
{
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Lookup table of IDs we've accumulated.
|
||
|
|
* @public
|
||
|
|
*/
|
||
|
|
public $ids = array();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Builds an IDAccumulator, also initializing the default blacklist
|
||
|
|
* @param HTMLPurifier_Config $config Instance of HTMLPurifier_Config
|
||
|
|
* @param HTMLPurifier_Context $context Instance of HTMLPurifier_Context
|
||
|
|
* @return HTMLPurifier_IDAccumulator Fully initialized HTMLPurifier_IDAccumulator
|
||
|
|
*/
|
||
|
|
public static function build($config, $context)
|
||
|
|
{
|
||
|
|
$id_accumulator = new HTMLPurifier_IDAccumulator();
|
||
|
|
$id_accumulator->load($config->get('Attr.IDBlacklist'));
|
||
|
|
return $id_accumulator;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add an ID to the lookup table.
|
||
|
|
* @param string $id ID to be added.
|
||
|
|
* @return bool status, true if success, false if there's a dupe
|
||
|
|
*/
|
||
|
|
public function add($id)
|
||
|
|
{
|
||
|
|
if (isset($this->ids[$id])) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
return $this->ids[$id] = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Load a list of IDs into the lookup table
|
||
|
|
* @param $array_of_ids Array of IDs to load
|
||
|
|
* @note This function doesn't care about duplicates
|
||
|
|
*/
|
||
|
|
public function load($array_of_ids)
|
||
|
|
{
|
||
|
|
foreach ($array_of_ids as $id) {
|
||
|
|
$this->ids[$id] = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// vim: et sw=4 sts=4
|