* * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\HtmlSanitizer\Reference; /** * Stores reference data from the W3C Sanitizer API standard. * * @see https://wicg.github.io/sanitizer-api/#default-configuration * * @author Titouan Galopin * * @internal */ final class W3CReference { /** * Sanitizer supported contexts. * * A parent element name can be passed as an argument to {@see HtmlSanitizer::sanitizeFor()}. * When doing so, depending on the given context, different elements will be allowed. */ public const CONTEXT_HEAD = 'head'; public const CONTEXT_BODY = 'body'; public const CONTEXT_TEXT = 'text'; // Which context to apply depending on the passed parent element name public const CONTEXTS_MAP = [ 'head' => self::CONTEXT_HEAD, 'textarea' => self::CONTEXT_TEXT, 'title' => self::CONTEXT_TEXT, ]; /** * Elements allowed by the Sanitizer standard in as keys, including whether * they are safe or not as values (safe meaning no global display/audio/video impact). */ public const HEAD_ELEMENTS = [ 'head' => true, 'link' => true, 'meta' => true, 'style' => false, 'title' => true, ]; /** * Elements allowed by the Sanitizer standard in as keys, including whether * they are safe or not as values (safe meaning no global display/audio/video impact). */ public const BODY_ELEMENTS = [ 'a' => true, 'abbr' => true, 'acronym' => true, 'address' => true, 'area' => true, 'article' => true, 'aside' => true, 'audio' => true, 'b' => true, 'basefont' => true, 'bdi' => true, 'bdo' => true, 'bgsound' => false, 'big' => true, 'blockquote' => true, 'body' => true, 'br' => true, 'button' => true, 'canvas' => true, 'caption' => true, 'center' => true, 'cite' => true, 'code' => true, 'col' => true, 'colgroup' => true, 'command' => true, 'data' => true, 'datalist' => true, 'dd' => true, 'del' => true, 'details' => true, 'dfn' => true, 'dialog' => true, 'dir' => true, 'div' => true, 'dl' => true, 'dt' => true, 'em' => true, 'fieldset' => true, 'figcaption' => true, 'figure' => true, 'font' => true, 'footer' => true, 'form' => false, 'h1' => true, 'h2' => true, 'h3' => true, 'h4' => true, 'h5' => true, 'h6' => true, 'header' => true, 'hgroup' => true, 'hr' => true, 'html' => true, 'i' => true, 'image' => true, 'img' => true, 'input' => false, 'ins' => true, 'kbd' => true, 'keygen' => true, 'label' => true, 'layer' => true, 'legend' => true, 'li' => true, 'listing' => true, 'main' => true, 'map' => true, 'mark' => true, 'marquee' => true, 'menu' => true, 'meter' => true, 'nav' => true, 'nobr' => true, 'ol' => true, 'optgroup' => true, 'option' => true, 'output' => true, 'p' => true, 'picture' => true, 'plaintext' => true, 'popup' => true, 'portal' => true, 'pre' => true, 'progress' => true, 'q' => true, 'rb' => true, 'rp' => true, 'rt' => true, 'rtc' => true, 'ruby' => true, 's' => true, 'samp' => true, 'section' => true, 'select' => false, 'selectmenu' => false, 'slot' => true, 'small' => true, 'source' => true, 'span' => true, 'strike' => true, 'strong' => true, 'sub' => true, 'summary' => true, 'sup' => true, 'table' => true, 'tbody' => true, 'td' => true, 'template' => true, 'textarea' => false, 'tfoot' => true, 'th' => true, 'thead' => true, 'time' => true, 'tr' => true, 'track' => true, 'tt' => true, 'u' => true, 'ul' => true, 'var' => true, 'video' => true, 'wbr' => true, 'xmp' => true, ]; /** * Attributes allowed by the standard. */ public const ATTRIBUTES = [ 'abbr' => true, 'accept' => true, 'accept-charset' => true, 'accesskey' => true, 'action' => true, 'align' => true, 'alink' => true, 'allow' => true, 'allowfullscreen' => true, 'allowpaymentrequest' => false, 'alt' => true, 'anchor' => true, 'archive' => true, 'as' => true, 'async' => false, 'autocapitalize' => false, 'autocomplete' => false, 'autocorrect' => false, 'autofocus' => false, 'autopictureinpicture' => false, 'autoplay' => false, 'axis' => true, 'background' => false, 'behavior' => true, 'bgcolor' => false, 'border' => false, 'bordercolor' => false, 'capture' => true, 'cellpadding' => true, 'cellspacing' => true, 'challenge' => true, 'char' => true, 'charoff' => true, 'charset' => true, 'checked' => false, 'cite' => true, 'class' => false, 'classid' => false, 'clear' => true, 'code' => true, 'codebase' => true, 'codetype' => true, 'color' => false, 'cols' => true, 'colspan' => true, 'compact' => true, 'content' => true, 'contenteditable' => false, 'controls' => true, 'controlslist' => true, 'conversiondestination' => true, 'coords' => true, 'crossorigin' => true, 'csp' => true, 'data' => true, 'datetime' => true, 'declare' => true, 'decoding' => true, 'default' => true, 'defer' => true, 'dir' => true, 'direction' => true, 'dirname' => true, 'disabled' => true, 'disablepictureinpicture' => true, 'disableremoteplayback' => true, 'disallowdocumentaccess' => true, 'download' => true, 'draggable' => true, 'elementtiming' => true, 'enctype' => true, 'end' => true, 'enterkeyhint' => true, 'event' => true, 'exportparts' => true, 'face' => true, 'for' => true, 'form' => false, 'formaction' => false, 'formenctype' => false, 'formmethod' => false, 'formnovalidate' => false, 'formtarget' => false, 'frame' => false, 'frameborder' => false, 'headers' => true, 'height' => true, 'hidden' => false, 'high' => true, 'href' => true, 'hreflang' => true, 'hreftranslate' => true, 'hspace' => true, 'http-equiv' => false, 'id' => true, 'imagesizes' => true, 'imagesrcset' => true, 'importance' => true, 'impressiondata' => true, 'impressionexpiry' => true, 'incremental' => true, 'inert' => true, 'inputmode' => true, 'integrity' => true, 'invisible' => true, 'is' => true, 'ismap' => true, 'keytype' => true, 'kind' => true, 'label' => true, 'lang' => true, 'language' => true, 'latencyhint' => true, 'leftmargin' => true, 'link' => true, 'list' => true, 'loading' => true, 'longdesc' => true, 'loop' => true, 'low' => true, 'lowsrc' => true, 'manifest' => true, 'marginheight' => true, 'marginwidth' => true, 'max' => true, 'maxlength' => true, 'mayscript' => true, 'media' => true, 'method' => true, 'min' => true, 'minlength' => true, 'multiple' => true, 'muted' => true, 'name' => true, 'nohref' => true, 'nomodule' => true, 'nonce' => true, 'noresize' => true, 'noshade' => true, 'novalidate' => true, 'nowrap' => true, 'object' => true, 'open' => true, 'optimum' => true, 'part' => true, 'pattern' => true, 'ping' => false, 'placeholder' => true, 'playsinline' => true, 'policy' => true, 'poster' => true, 'preload' => true, 'pseudo' => true, 'readonly' => true, 'referrerpolicy' => true, 'rel' => true, 'reportingorigin' => true, 'required' => true, 'resources' => true, 'rev' => true, 'reversed' => true, 'role' => true, 'rows' => true, 'rowspan' => true, 'rules' => true, 'sandbox' => true, 'scheme' => true, 'scope' => true, 'scopes' => true, 'scrollamount' => true, 'scrolldelay' => true, 'scrolling' => true, 'select' => false, 'selected' => false, 'shadowroot' => true, 'shadowrootdelegatesfocus' => true, 'shape' => true, 'size' => true, 'sizes' => true, 'slot' => true, 'span' => true, 'spellcheck' => true, 'src' => true, // 'srcdoc' => false, // XSS vector if not properly sandboxed, should be enabled explicitly with ->allowAttribute('srcdoc', 'iframe')->forceAttribute('iframe', 'sandbox', '') 'srclang' => true, 'srcset' => true, 'standby' => true, 'start' => true, 'step' => true, 'style' => false, 'summary' => true, 'tabindex' => true, 'target' => true, 'text' => true, 'title' => true, 'topmargin' => true, 'translate' => true, 'truespeed' => true, 'trusttoken' => true, 'type' => true, 'usemap' => true, 'valign' => true, 'value' => false, 'valuetype' => true, 'version' => true, 'virtualkeyboardpolicy' => true, 'vlink' => false, 'vspace' => true, 'webkitdirectory' => true, 'width' => true, 'wrap' => true, ]; } Copyright (c) 2021-present Fabien Potencier Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.