<?php

/**
 * Adds rel="nofollow" to all outbound links.  This transform is
 * only attached if Attr.Nofollow is TRUE.
 */
class HTMLPurifier_AttrTransform_Nofollow 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->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;
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----MTM1NzQwMTc0ODYzOTYwMSA2ODk5MzU0NDU0MTI4ODc1IDQ4ODc4MjQzNTg2MDkwMjM=