Page MenuHomeWickedGov Phorge
Files F5989304

ImportAtRuleSanitizer.php
No OneTemporary
Actions

Size
2 KB
Referenced Files
None
Subscribers
None

ImportAtRuleSanitizer.php
View Options

<?php
/**
* @file
* @license https://opensource.org/licenses/Apache-2.0 Apache-2.0
*/
namespace Wikimedia\CSS\Sanitizer;
use Wikimedia\CSS\Grammar\Alternative;
use Wikimedia\CSS\Grammar\FunctionMatcher;
use Wikimedia\CSS\Grammar\Juxtaposition;
use Wikimedia\CSS\Grammar\Matcher;
use Wikimedia\CSS\Grammar\MatcherFactory;
use Wikimedia\CSS\Grammar\Quantifier;
use Wikimedia\CSS\Objects\AtRule;
use Wikimedia\CSS\Objects\CSSObject;
use Wikimedia\CSS\Objects\Rule;
use Wikimedia\CSS\Util;
/**
* Sanitizes a CSS \@import rule
* @see https://www.w3.org/TR/2018/CR-css-cascade-4-20180828/#at-import
*/
class ImportAtRuleSanitizer extends RuleSanitizer {
/** @var Matcher */
protected $matcher;
/**
* @param MatcherFactory $matcherFactory
* @param array $options Additional options:
* - strict: (bool) Only accept defined syntax in supports(). Default true.
* - declarationSanitizer: (PropertySanitizer) Check supports() declarations against this
* Sanitizer.
*/
public function __construct( MatcherFactory $matcherFactory, array $options = [] ) {
$declarationSanitizer = $options['declarationSanitizer'] ?? null;
$strict = $options['strict'] ?? true;
$this->matcher = new Juxtaposition( [
new Alternative( [
$matcherFactory->url( 'css' ),
$matcherFactory->urlstring( 'css' ),
] ),
Quantifier::optional( new FunctionMatcher( 'supports', new Alternative( [
$matcherFactory->cssSupportsCondition( $declarationSanitizer, $strict ),
$matcherFactory->cssDeclaration( $declarationSanitizer ),
] ) ) ),
$matcherFactory->cssMediaQueryList(),
] );
}
/** @inheritDoc */
public function getIndex() {
return -1000;
}
/** @inheritDoc */
public function handlesRule( Rule $rule ) {
return $rule instanceof AtRule && !strcasecmp( $rule->getName(), 'import' );
}
/** @inheritDoc */
protected function doSanitize( CSSObject $object ) {
if ( !$object instanceof AtRule || !$this->handlesRule( $object ) ) {
$this->sanitizationError( 'expected-at-rule', $object, [ 'import' ] );
return null;
}
if ( $object->getBlock() !== null ) {
$this->sanitizationError( 'at-rule-block-not-allowed', $object->getBlock(), [ 'import' ] );
return null;
}
if ( !$this->matcher->matchAgainst( $object->getPrelude(), [ 'mark-significance' => true ] ) ) {
$cv = Util::findFirstNonWhitespace( $object->getPrelude() );
if ( $cv ) {
$this->sanitizationError( 'invalid-import-value', $cv );
} else {
$this->sanitizationError( 'missing-import-source', $object );
}
return null;
}
return $this->fixPreludeWhitespace( $object, true );
}
}

File Metadata

Mime Type
text/x-php
Expires
Sun, Oct 4, 01:05 (3 w, 4 d ago)
Storage Engine
local-disk
Storage Format
Raw Data
Storage Handle
4d/3d/15cab4ca3b3f921850024c8d2d07
Default Alt Text
ImportAtRuleSanitizer.php (2 KB)

Event Timeline