mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-11-30 12:26:20 +00:00
46 lines
1.1 KiB
PHP
46 lines
1.1 KiB
PHP
|
<?php
|
||
|
|
|
||
|
|
// must be called POST validation
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Adds target="blank" to all outbound links. This transform is
|
||
|
|
* only attached if Attr.TargetBlank is TRUE. This works regardless
|
||
|
|
* of whether or not Attr.AllowedFrameTargets
|
||
|
|
*/
|
||
|
|
class HTMLPurifier_AttrTransform_TargetBlank extends HTMLPurifier_AttrTransform
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* @type HTMLPurifier_URIParser
|
||
|
|
*/
|
||
|
|
private $parser;
|
||
|
|
|
||
|
|
public function __construct()
|
||
|
|
{
|
||
|
|
$this->parser = new HTMLPurifier_URIParser();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param array $attr
|
||
|
|
* @param HTMLPurifier_Config $config
|
||
|
|
* @param HTMLPurifier_Context $context
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function transform($attr, $config, $context)
|
||
|
|
{
|
||
|
|
if (!isset($attr['href'])) {
|
||
|
|
return $attr;
|
||
|
|
}
|
||
|
|
|
||
|
|
// XXX Kind of inefficient
|
||
|
|
$url = $this->parser->parse($attr['href']);
|
||
|
|
$scheme = $url->getSchemeObj($config, $context);
|
||
|
|
|
||
|
|
if ($scheme->browsable && !$url->isBenign($config, $context)) {
|
||
|
|
$attr['target'] = '_blank';
|
||
|
|
}
|
||
|
|
return $attr;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// vim: et sw=4 sts=4
|