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

Private Attributes
	$parser

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

HTMLPurifier_AttrTransform_Nofollow::__construct

(

)

Definition at line 13 of file Nofollow.php.

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

Member Function Documentation

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

Abstract: makes changes to the attributes dependent on multiple values.

Parameters

$attr	Assoc array of attributes, usually from HTMLPurifier_Token_Tag::$attr
$config	Mandatory HTMLPurifier_Config object.
$context	Mandatory HTMLPurifier_Context object

Returns

Processed attribute array.

Reimplemented from HTMLPurifier_AttrTransform.

Definition at line 17 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;

    }

Field Documentation

HTMLPurifier_AttrTransform_Nofollow::$parser

private

Definition at line 11 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