Proyectos de Subversion Moodle

Rev

| Ultima modificación | Ver Log |

Rev Autor Línea Nro. Línea
1 efrain 1 
<?php
2 
 
3 
// must be called POST validation
4 
 
5 
/**
6 
 * Adds target="blank" to all outbound links.  This transform is
7 
 * only attached if Attr.TargetBlank is TRUE.  This works regardless
8 
 * of whether or not Attr.AllowedFrameTargets
9 
 */
10 
class HTMLPurifier_AttrTransform_TargetBlank extends HTMLPurifier_AttrTransform
11 
{
12 
    /**
13 
     * @type HTMLPurifier_URIParser
14 
     */
15 
    private $parser;
16 
 
17 
    public function __construct()
18 
    {
19 
        $this->parser = new HTMLPurifier_URIParser();
20 
    }
21 
 
22 
    /**
23 
     * @param array $attr
24 
     * @param HTMLPurifier_Config $config
25 
     * @param HTMLPurifier_Context $context
26 
     * @return array
27 
     */
28 
    public function transform($attr, $config, $context)
29 
    {
30 
        if (!isset($attr['href'])) {
31 
            return $attr;
32 
        }
33 
 
34 
        // XXX Kind of inefficient
35 
        $url = $this->parser->parse($attr['href']);
36 
 
37 
        // Ignore invalid schemes (e.g. `javascript:`)
38 
        if (!($scheme = $url->getSchemeObj($config, $context))) {
39 
            return $attr;
40 
        }
41 
 
42 
        if ($scheme->browsable && !$url->isBenign($config, $context)) {
43 
            $attr['target'] = '_blank';
44 
        }
45 
        return $attr;
46 
    }
47 
}
48 
 
49 
// vim: et sw=4 sts=4