HTMLPurifier_AttrTransform_Nofollow Class Reference

Adds rel="nofollow" to all outbound links. More...

Inheritance diagram for HTMLPurifier_AttrTransform_Nofollow:

Collaboration diagram for HTMLPurifier_AttrTransform_Nofollow:

Public Member Functions
	__construct ()
	transform ($attr, $config, $context)
Public Member Functions inherited from HTMLPurifier_AttrTransform
	transform ($attr, $config, $context)
	Abstract: makes changes to the attributes dependent on multiple values. More...
	prependCSS (&$attr, $css)
	Prepends CSS properties to the style attribute, creating the attribute if it doesn't exist. More...
	confiscateAttr (&$attr, $key)
	Retrieves and removes an attribute. More...

Private Attributes
	$parser
	@type HTMLPurifier_URIParser More...

Detailed Description

Adds rel="nofollow" to all outbound links.

This transform is only attached if Attr.Nofollow is TRUE.

Definition at line 9 of file Nofollow.php.

Constructor & Destructor Documentation

__construct()

HTMLPurifier_AttrTransform_Nofollow::__construct

(

)

Definition at line 16 of file Nofollow.php.

    {
        $this->parser = new HTMLPurifier_URIParser();
    }

Member Function Documentation

transform()

HTMLPurifier_AttrTransform_Nofollow::transform	(		$attr,
			$config,
			$context
	)

Parameters

array	$attr
HTMLPurifier_Config	$config
HTMLPurifier_Context	$context

Returns

array

Reimplemented from HTMLPurifier_AttrTransform.

Definition at line 27 of file Nofollow.php.

    {
        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->isLocal($config, $context)) {
            if (isset($attr['rel'])) {
                $rels = explode(' ', $attr['rel']);
                if (!in_array('nofollow', $rels)) {
                    $rels[] = 'nofollow';
                }
                $attr['rel'] = implode(' ', $rels);
            } else {
                $attr['rel'] = 'nofollow';
            }
        }
        return $attr;
    }

References $url.

Field Documentation

$parser

HTMLPurifier_AttrTransform_Nofollow::$parser

private

@type HTMLPurifier_URIParser

Definition at line 14 of file Nofollow.php.

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The documentation for this class was generated from the following file:

• Services/Html/HtmlPurifier/library/HTMLPurifier/AttrTransform/Nofollow.php