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<?php |
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namespace Depicter\Utility; |
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|
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use \Averta\WordPress\Utility\Sanitize as SanitizeBase; |
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|
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class Sanitize extends SanitizeBase { |
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|
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public static function html( $input, $allowed_tags = null, $namespace = null, $auto_p = false ){ |
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// A fix to allow empty data url for src in image tag |
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if( $namespace === 'depicter/output' ){ |
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add_filter( 'wp_kses_uri_attributes', [ __CLASS__, 'skipSrcEscapeTemporary' ], 25 ); |
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add_filter( 'safe_style_css', [ __CLASS__, 'modifyAllowedCssAttributes' ]); |
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add_filter( 'safecss_filter_attr_allow_css', [ __CLASS__, 'checkAllowedCssValue' ], 10, 2); |
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} |
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$sanitized = parent::html( $input, $allowed_tags, $namespace, $auto_p ); |
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if( $namespace === 'depicter/output' ){ |
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remove_filter( 'wp_kses_uri_attributes', [ __CLASS__, 'skipSrcEscapeTemporary' ], 25 ); |
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remove_filter( 'safe_style_css', [ __CLASS__, 'modifyAllowedCssAttributes' ]); |
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remove_filter( 'safecss_filter_attr_allow_css', [ __CLASS__, 'checkAllowedCssValue' ], 10, 2); |
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} |
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|
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return $sanitized; |
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} |
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|
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/** |
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* Retrieves default WordPress HTML tags |
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* |
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* @return array |
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*/ |
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protected static function defaultAllowedTags(){ |
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$tags = parent::defaultAllowedTags(); |
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|
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$tags['style'] = [ |
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'type' => true |
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]; |
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$tags['script'] = [ |
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'id' => true, |
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'src' => true |
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]; |
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$tags['link'] = [ |
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'rel' => true, |
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'id' => true, |
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'href' => true, |
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'media' => true, |
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]; |
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return $tags; |
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} |
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|
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/** |
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* Ignore src escaping because `wp_kses` strips `data:` from image placeholder source in PHP 8.0+ |
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* |
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* @param array $uriAttributes |
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* |
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* @return array $uriAttributes |
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*/ |
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public static function skipSrcEscapeTemporary( $uriAttributes ) { |
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if ( ( $key = array_search( 'src', $uriAttributes ) ) !== false) { |
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unset( $uriAttributes[ $key ] ); |
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} |
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return $uriAttributes; |
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} |
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|
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/** |
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* Modify allowed css attributes |
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* |
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* @param $properties |
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* |
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* @return mixed |
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*/ |
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public static function modifyAllowedCssAttributes( $properties ) { |
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$properties = array_merge( $properties, [ |
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'fill', |
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'opacity', |
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'stroke', |
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'stroke-width', |
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'stroke-opacity', |
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'fill-opacity', |
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'stop-color', |
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'transform', |
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'fill-rule', |
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'clip-rule', |
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'stroke-linejoin', |
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'stroke-miterlimit' |
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]); |
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|
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return $properties; |
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} |
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|
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/** |
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* Check for allowed css values |
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* |
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* @param $allowed |
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* @param $css_test_string |
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* |
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* @return bool |
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*/ |
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public static function checkAllowedCssValue( $allowed, $css_test_string ): bool{ |
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|
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$allowedCssValues = [ |
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'rotate', |
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'scale', |
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'evenodd', |
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'round' |
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]; |
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|
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foreach( $allowedCssValues as $value ) { |
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if ( ! $allowed && str_contains( $css_test_string, $value ) ) { |
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return true; |
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} |
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} |
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return $allowed; |
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} |
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} |
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|
