mirror of
https://github.com/ezyang/htmlpurifier.git
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35 lines
1.0 KiB
PHP
35 lines
1.0 KiB
PHP
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<?php
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require_once 'HTMLPurifier/AttrDef.php';
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require_once 'HTMLPurifier/CSSDefinition.php';
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class HTMLPurifier_AttrDef_CSS
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{
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function validate($css, $config, &$context) {
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$definition = HTMLPurifier_CSSDefinition::instance();
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// we're going to break the spec and explode by semicolons.
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// This is because semicolon rarely appears in escaped form
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$declarations = explode(';', $css);
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$new_declarations = '';
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foreach ($declarations as $declaration) {
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if (!$declaration) continue;
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if (!strpos($declaration, ':')) continue;
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list($property, $value) = explode(':', $declaration, 2);
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if (!isset($definition->info[$property])) continue;
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$result = $definition->info[$property]->validate($value,$config,$context);
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if ($result === false) continue;
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$new_declarations .= "$property:$result;";
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}
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return $new_declarations ? $new_declarations : false;
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}
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}
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?>
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