mirror of
https://github.com/OpenXE-org/OpenXE.git
synced 2024-12-30 16:40:28 +01:00
48 lines
1.3 KiB
PHP
48 lines
1.3 KiB
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
|
||
|
{
|
||
|
|
||
|
/**
|
||
|
* @param array $attr
|
||
|
* @param HTMLPurifier_Config $config
|
||
|
* @param HTMLPurifier_Context $context
|
||
|
* @return array
|
||
|
*/
|
||
|
public function transform($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) {
|
||
|
$alt = $config->get('Attr.DefaultImageAlt');
|
||
|
if ($alt === null) {
|
||
|
$attr['alt'] = basename($attr['src']);
|
||
|
} else {
|
||
|
$attr['alt'] = $alt;
|
||
|
}
|
||
|
} else {
|
||
|
$attr['alt'] = $config->get('Attr.DefaultInvalidImageAlt');
|
||
|
}
|
||
|
}
|
||
|
return $attr;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// vim: et sw=4 sts=4
|