mirror of
https://github.com/ezyang/htmlpurifier.git
synced 2024-11-09 23:28:42 +00:00
35f8b3c801
git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1539 48356398-32a2-884e-a903-53898d9a118a
37 lines
991 B
PHP
37 lines
991 B
PHP
<?php
|
|
|
|
// must be called POST validation
|
|
|
|
/**
|
|
* Transform that supplies default values for the src and alt attributes
|
|
* in img tags, as well as prevents the img tag from being removed
|
|
* because of a missing alt tag. This needs to be registered as both
|
|
* a pre and post attribute transform.
|
|
*/
|
|
class HTMLPurifier_AttrTransform_ImgRequired extends HTMLPurifier_AttrTransform
|
|
{
|
|
|
|
public function transform($attr, $config, $context) {
|
|
|
|
$src = true;
|
|
if (!isset($attr['src'])) {
|
|
if ($config->get('Core', 'RemoveInvalidImg')) return $attr;
|
|
$attr['src'] = $config->get('Attr', 'DefaultInvalidImage');
|
|
$src = false;
|
|
}
|
|
|
|
if (!isset($attr['alt'])) {
|
|
if ($src) {
|
|
$attr['alt'] = basename($attr['src']);
|
|
} else {
|
|
$attr['alt'] = $config->get('Attr', 'DefaultInvalidImageAlt');
|
|
}
|
|
}
|
|
|
|
return $attr;
|
|
|
|
}
|
|
|
|
}
|
|
|