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