mirror of
https://github.com/ezyang/htmlpurifier.git
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47 lines
1.4 KiB
PHP
47 lines
1.4 KiB
PHP
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<?php
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require_once 'HTMLPurifier/AttrTransform.php';
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// must be called POST validation
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HTMLPurifier_ConfigDef::define(
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'Attr', 'DefaultInvalidImage', '',
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'This is the default image an img tag will be pointed to if it does '.
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'not have a valid src attribute. In future versions, we may allow the '.
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'image tag to be removed completely, but due to design issues, this is '.
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'not possible right now.'
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);
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HTMLPurifier_ConfigDef::define(
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'Attr', 'DefaultInvalidImageAlt', 'Invalid image',
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'This is the content of the alt tag of an invalid image if the user '.
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'had not previously specified an alt attribute. It has no effect when the '.
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'image is valid but there was no alt attribute present.'
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);
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class HTMLPurifier_AttrTransform_ImgRequired extends HTMLPurifier_AttrTransform
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{
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function transform($attributes, $config) {
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$src = true;
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if (!isset($attributes['src'])) {
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$attributes['src'] = $config->get('Attr', 'DefaultInvalidImage');
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$src = false;
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}
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if (!isset($attributes['alt'])) {
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if ($src) {
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$attributes['alt'] = basename($attributes['src']);
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} else {
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$attributes['alt'] = $config->get('Attr', 'DefaultInvalidImageAlt');
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}
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}
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return $attributes;
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}
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}
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?>
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