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StyleAttributeSanitizer.php
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StyleAttributeSanitizer.php
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<?php
/**
* @file
* @license https://opensource.org/licenses/Apache-2.0 Apache-2.0
*/
namespace Wikimedia\CSS\Sanitizer;
use Wikimedia\CSS\Grammar\MatcherFactory;
use Wikimedia\CSS\Objects\CSSObject;
use Wikimedia\CSS\Objects\DeclarationList;
use Wikimedia\CSS\Parser\Parser;
/**
* Sanitizes a CSS style attribute (i.e. `<tag style="...">`)
* @see https://www.w3.org/TR/2013/REC-css-style-attr-20131107/
*/
class StyleAttributeSanitizer extends Sanitizer {
/** @var Sanitizer */
protected $propertySanitizer;
/**
* @param PropertySanitizer $propertySanitizer Sanitizer to test property declarations.
* Probably an instance of StylePropertySanitizer.
*/
public function __construct( PropertySanitizer $propertySanitizer ) {
$this->propertySanitizer = $propertySanitizer;
}
/**
* Create and return a default StyleAttributeSanitizer.
* @note This method exists more to be an example of how to put everything
* together than to be used directly.
* @return StyleAttributeSanitizer
*/
public static function newDefault() {
// First, we need a matcher factory for the stuff all the sanitizers
// will need.
$matcherFactory = MatcherFactory::singleton();
// This is the sanitizer for a single "property: value"
$propertySanitizer = new StylePropertySanitizer( $matcherFactory );
// StyleAttributeSanitizer brings it all together
return new StyleAttributeSanitizer( $propertySanitizer );
}
/** @inheritDoc */
protected function doSanitize( CSSObject $object ) {
if ( !$object instanceof DeclarationList ) {
$this->sanitizationError( 'expected-declaration-list', $object );
return null;
}
return $this->sanitizeList( $this->propertySanitizer, $object );
}
/**
* Sanitize a string value.
* @param string $string
* @return DeclarationList
*/
public function sanitizeString( $string ) {
$parser = Parser::newFromString( $string );
$declarations = $parser->parseDeclarationList();
$this->sanitizationErrors = array_merge( $this->sanitizationErrors, $parser->getParseErrors() );
// @phan-suppress-next-line PhanTypeMismatchReturnSuperType
return $this->sanitizeList( $this->propertySanitizer, $declarations );
}
}

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Wed, Aug 19, 07:58 (2 w, 3 d ago)
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StyleAttributeSanitizer.php (2 KB)

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