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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\HtmlSanitizer;
/**
* Sanitizes an untrusted HTML input for safe insertion into a document's DOM.
*
* This interface is inspired by the W3C Standard Draft about a HTML Sanitizer API
* ({@see https://wicg.github.io/sanitizer-api/}).
*
* @author Titouan Galopin <galopintitouan@gmail.com>
*/
interface HtmlSanitizerInterface
{
/**
* Sanitizes an untrusted HTML input for a <body> context.
*
* This method is NOT context sensitive: it assumes the returned HTML string
* will be injected in a "body" context, and therefore will drop tags only
* allowed in the "head" element. To sanitize a string for injection
* in the "head" element, use {@see HtmlSanitizerInterface::sanitizeFor()}.
*/
public function sanitize(string $input): string;
/**
* Sanitizes an untrusted HTML input for a given context.
*
* This method is context sensitive: by providing a parent element name
* (body, head, title, ...), the sanitizer will adapt its rules to only
* allow elements that are valid inside the given parent element.
*/
public function sanitizeFor(string $element, string $input): string;
}