Mercurial Hosting > sceditor
changeset 22:499f38b5eeff
remove DOMPurify
| author | Franklin Schmidt <fschmidt@gmail.com> |
|---|---|
| date | Mon, 08 Aug 2022 23:41:05 -0600 |
| parents | 2edd68951454 |
| children | c2a85b2ec677 |
| files | src/changes.txt src/sceditor.js |
| diffstat | 2 files changed, 9 insertions(+), 1368 deletions(-) [+] |
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--- a/src/changes.txt Mon Aug 08 20:03:27 2022 -0600 +++ b/src/changes.txt Mon Aug 08 23:41:05 2022 -0600 @@ -1,6 +1,8 @@ changes, most recent at top +Remove DOMPurify. This was a huge amount of incomprehensible code that adds little value. XSS should basically be handled on the server side, and if one is using bbcode then it isn't an issue anyway. + Removed "this" from command functions and instead pass "editor" as first arg. Javascript's object-oriented features are a disgusting hack and should never be used. I will remove uses of this as I encounter them. Add optional "icon" to command spec.
--- a/src/sceditor.js Mon Aug 08 20:03:27 2022 -0600 +++ b/src/sceditor.js Mon Aug 08 23:41:05 2022 -0600 @@ -3137,7 +3137,7 @@ * @class RangeHelper * @name RangeHelper */ - function RangeHelper(win, d, sanitize) { + function RangeHelper(win, d) { var _createMarker, _prepareInput, doc = d || win.contentDocument || win.document, startMarker = 'sceditor-start-marker', @@ -3173,7 +3173,7 @@ div = createElement('p', {}, doc); node = doc.createDocumentFragment(); - div.innerHTML = sanitize(html); + div.innerHTML = html; while (div.firstChild) { appendChild(node, div.firstChild); @@ -4097,1313 +4097,6 @@ }(root)); } - /*! @license DOMPurify | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/2.2.2/LICENSE */ - - function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } } - - var hasOwnProperty = Object.hasOwnProperty, - setPrototypeOf = Object.setPrototypeOf, - isFrozen = Object.isFrozen, - getPrototypeOf = Object.getPrototypeOf, - getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor; - var freeze = Object.freeze, - seal = Object.seal, - create = Object.create; // eslint-disable-line import/no-mutable-exports - - var _ref = typeof Reflect !== 'undefined' && Reflect, - apply = _ref.apply, - construct = _ref.construct; - - if (!apply) { - apply = function apply(fun, thisValue, args) { - return fun.apply(thisValue, args); - }; - } - - if (!freeze) { - freeze = function freeze(x) { - return x; - }; - } - - if (!seal) { - seal = function seal(x) { - return x; - }; - } - - if (!construct) { - construct = function construct(Func, args) { - return new (Function.prototype.bind.apply(Func, [null].concat(_toConsumableArray(args))))(); - }; - } - - var typeErrorCreate = unconstruct(TypeError); - - function unapply(func) { - return function (thisArg) { - for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) { - args[_key - 1] = arguments[_key]; - } - - return apply(func, thisArg, args); - }; - } - - function unconstruct(func) { - return function () { - for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) { - args[_key2] = arguments[_key2]; - } - - return construct(func, args); - }; - } - - /* Add properties to a lookup table */ - function addToSet(set, array) { - if (setPrototypeOf) { - // Make 'in' and truthy checks like Boolean(set.constructor) - // independent of any properties defined on Object.prototype. - // Prevent prototype setters from intercepting set as a this value. - setPrototypeOf(set, null); - } - - var l = array.length; - while (l--) { - var element = array[l]; - if (typeof element === 'string') { - var lcElement = element.toLowerCase(); - if (lcElement !== element) { - // Config presets (e.g. tags.js, attrs.js) are immutable. - if (!isFrozen(array)) { - array[l] = lcElement; - } - - element = lcElement; - } - } - - set[element] = true; - } - - return set; - } - - /* Shallow clone an object */ - function clone(object) { - var newObject = create(null); - - var property = void 0; - for (property in object) { - if (apply(hasOwnProperty, object, [property])) { - newObject[property] = object[property]; - } - } - - return newObject; - } - - /* IE10 doesn't support __lookupGetter__ so lets' - * simulate it. It also automatically checks - * if the prop is function or getter and behaves - * accordingly. */ - function lookupGetter(object, prop) { - while (object !== null) { - var desc = getOwnPropertyDescriptor(object, prop); - if (desc) { - if (desc.get) { - return unapply(desc.get); - } - - if (typeof desc.value === 'function') { - return unapply(desc.value); - } - } - - object = getPrototypeOf(object); - } - - return null; - } - - var html = freeze(['a', 'abbr', 'acronym', 'address', 'area', 'article', 'aside', 'audio', 'b', 'bdi', 'bdo', 'big', 'blink', 'blockquote', 'body', 'br', 'button', 'canvas', 'caption', 'center', 'cite', 'code', 'col', 'colgroup', 'content', 'data', 'datalist', 'dd', 'decorator', 'del', 'details', 'dfn', 'dialog', 'dir', 'div', 'dl', 'dt', 'element', 'em', 'fieldset', 'figcaption', 'figure', 'font', 'footer', 'form', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head', 'header', 'hgroup', 'hr', 'html', 'i', 'img', 'input', 'ins', 'kbd', 'label', 'legend', 'li', 'main', 'map', 'mark', 'marquee', 'menu', 'menuitem', 'meter', 'nav', 'nobr', 'ol', 'optgroup', 'option', 'output', 'p', 'picture', 'pre', 'progress', 'q', 'rp', 'rt', 'ruby', 's', 'samp', 'section', 'select', 'shadow', 'small', 'source', 'spacer', 'span', 'strike', 'strong', 'style', 'sub', 'summary', 'sup', 'table', 'tbody', 'td', 'template', 'textarea', 'tfoot', 'th', 'thead', 'time', 'tr', 'track', 'tt', 'u', 'ul', 'var', 'video', 'wbr']); - - // SVG - var svg = freeze(['svg', 'a', 'altglyph', 'altglyphdef', 'altglyphitem', 'animatecolor', 'animatemotion', 'animatetransform', 'circle', 'clippath', 'defs', 'desc', 'ellipse', 'filter', 'font', 'g', 'glyph', 'glyphref', 'hkern', 'image', 'line', 'lineargradient', 'marker', 'mask', 'metadata', 'mpath', 'path', 'pattern', 'polygon', 'polyline', 'radialgradient', 'rect', 'stop', 'style', 'switch', 'symbol', 'text', 'textpath', 'title', 'tref', 'tspan', 'view', 'vkern']); - - var svgFilters = freeze(['feBlend', 'feColorMatrix', 'feComponentTransfer', 'feComposite', 'feConvolveMatrix', 'feDiffuseLighting', 'feDisplacementMap', 'feDistantLight', 'feFlood', 'feFuncA', 'feFuncB', 'feFuncG', 'feFuncR', 'feGaussianBlur', 'feMerge', 'feMergeNode', 'feMorphology', 'feOffset', 'fePointLight', 'feSpecularLighting', 'feSpotLight', 'feTile', 'feTurbulence']); - - // List of SVG elements that are disallowed by default. - // We still need to know them so that we can do namespace - // checks properly in case one wants to add them to - // allow-list. - var svgDisallowed = freeze(['animate', 'color-profile', 'cursor', 'discard', 'fedropshadow', 'feimage', 'font-face', 'font-face-format', 'font-face-name', 'font-face-src', 'font-face-uri', 'foreignobject', 'hatch', 'hatchpath', 'mesh', 'meshgradient', 'meshpatch', 'meshrow', 'missing-glyph', 'script', 'set', 'solidcolor', 'unknown', 'use']); - - var mathMl = freeze(['math', 'menclose', 'merror', 'mfenced', 'mfrac', 'mglyph', 'mi', 'mlabeledtr', 'mmultiscripts', 'mn', 'mo', 'mover', 'mpadded', 'mphantom', 'mroot', 'mrow', 'ms', 'mspace', 'msqrt', 'mstyle', 'msub', 'msup', 'msubsup', 'mtable', 'mtd', 'mtext', 'mtr', 'munder', 'munderover']); - - // Similarly to SVG, we want to know all MathML elements, - // even those that we disallow by default. - var mathMlDisallowed = freeze(['maction', 'maligngroup', 'malignmark', 'mlongdiv', 'mscarries', 'mscarry', 'msgroup', 'mstack', 'msline', 'msrow', 'semantics', 'annotation', 'annotation-xml', 'mprescripts', 'none']); - - var text = freeze(['#text']); - - var html$1 = freeze(['accept', 'action', 'align', 'alt', 'autocapitalize', 'autocomplete', 'autopictureinpicture', 'autoplay', 'background', 'bgcolor', 'border', 'capture', 'cellpadding', 'cellspacing', 'checked', 'cite', 'class', 'clear', 'color', 'cols', 'colspan', 'controls', 'controlslist', 'coords', 'crossorigin', 'datetime', 'decoding', 'default', 'dir', 'disabled', 'disablepictureinpicture', 'disableremoteplayback', 'download', 'draggable', 'enctype', 'enterkeyhint', 'face', 'for', 'headers', 'height', 'hidden', 'high', 'href', 'hreflang', 'id', 'inputmode', 'integrity', 'ismap', 'kind', 'label', 'lang', 'list', 'loading', 'loop', 'low', 'max', 'maxlength', 'media', 'method', 'min', 'minlength', 'multiple', 'muted', 'name', 'noshade', 'novalidate', 'nowrap', 'open', 'optimum', 'pattern', 'placeholder', 'playsinline', 'poster', 'preload', 'pubdate', 'radiogroup', 'readonly', 'rel', 'required', 'rev', 'reversed', 'role', 'rows', 'rowspan', 'spellcheck', 'scope', 'selected', 'shape', 'size', 'sizes', 'span', 'srclang', 'start', 'src', 'srcset', 'step', 'style', 'summary', 'tabindex', 'title', 'translate', 'type', 'usemap', 'valign', 'value', 'width', 'xmlns']); - - var svg$1 = freeze(['accent-height', 'accumulate', 'additive', 'alignment-baseline', 'ascent', 'attributename', 'attributetype', 'azimuth', 'basefrequency', 'baseline-shift', 'begin', 'bias', 'by', 'class', 'clip', 'clippathunits', 'clip-path', 'clip-rule', 'color', 'color-interpolation', 'color-interpolation-filters', 'color-profile', 'color-rendering', 'cx', 'cy', 'd', 'dx', 'dy', 'diffuseconstant', 'direction', 'display', 'divisor', 'dur', 'edgemode', 'elevation', 'end', 'fill', 'fill-opacity', 'fill-rule', 'filter', 'filterunits', 'flood-color', 'flood-opacity', 'font-family', 'font-size', 'font-size-adjust', 'font-stretch', 'font-style', 'font-variant', 'font-weight', 'fx', 'fy', 'g1', 'g2', 'glyph-name', 'glyphref', 'gradientunits', 'gradienttransform', 'height', 'href', 'id', 'image-rendering', 'in', 'in2', 'k', 'k1', 'k2', 'k3', 'k4', 'kerning', 'keypoints', 'keysplines', 'keytimes', 'lang', 'lengthadjust', 'letter-spacing', 'kernelmatrix', 'kernelunitlength', 'lighting-color', 'local', 'marker-end', 'marker-mid', 'marker-start', 'markerheight', 'markerunits', 'markerwidth', 'maskcontentunits', 'maskunits', 'max', 'mask', 'media', 'method', 'mode', 'min', 'name', 'numoctaves', 'offset', 'operator', 'opacity', 'order', 'orient', 'orientation', 'origin', 'overflow', 'paint-order', 'path', 'pathlength', 'patterncontentunits', 'patterntransform', 'patternunits', 'points', 'preservealpha', 'preserveaspectratio', 'primitiveunits', 'r', 'rx', 'ry', 'radius', 'refx', 'refy', 'repeatcount', 'repeatdur', 'restart', 'result', 'rotate', 'scale', 'seed', 'shape-rendering', 'specularconstant', 'specularexponent', 'spreadmethod', 'startoffset', 'stddeviation', 'stitchtiles', 'stop-color', 'stop-opacity', 'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', 'stroke', 'stroke-width', 'style', 'surfacescale', 'systemlanguage', 'tabindex', 'targetx', 'targety', 'transform', 'text-anchor', 'text-decoration', 'text-rendering', 'textlength', 'type', 'u1', 'u2', 'unicode', 'values', 'viewbox', 'visibility', 'version', 'vert-adv-y', 'vert-origin-x', 'vert-origin-y', 'width', 'word-spacing', 'wrap', 'writing-mode', 'xchannelselector', 'ychannelselector', 'x', 'x1', 'x2', 'xmlns', 'y', 'y1', 'y2', 'z', 'zoomandpan']); - - var mathMl$1 = freeze(['accent', 'accentunder', 'align', 'bevelled', 'close', 'columnsalign', 'columnlines', 'columnspan', 'denomalign', 'depth', 'dir', 'display', 'displaystyle', 'encoding', 'fence', 'frame', 'height', 'href', 'id', 'largeop', 'length', 'linethickness', 'lspace', 'lquote', 'mathbackground', 'mathcolor', 'mathsize', 'mathvariant', 'maxsize', 'minsize', 'movablelimits', 'notation', 'numalign', 'open', 'rowalign', 'rowlines', 'rowspacing', 'rowspan', 'rspace', 'rquote', 'scriptlevel', 'scriptminsize', 'scriptsizemultiplier', 'selection', 'separator', 'separators', 'stretchy', 'subscriptshift', 'supscriptshift', 'symmetric', 'voffset', 'width', 'xmlns']); - - var xml = freeze(['xlink:href', 'xml:id', 'xlink:title', 'xml:space', 'xmlns:xlink']); - - // eslint-disable-next-line unicorn/better-regex - var MUSTACHE_EXPR = seal(/\{\{[\s\S]*|[\s\S]*\}\}/gm); // Specify template detection regex for SAFE_FOR_TEMPLATES mode - var ERB_EXPR = seal(/<%[\s\S]*|[\s\S]*%>/gm); - var DATA_ATTR = seal(/^data-[\-\w.\u00B7-\uFFFF]/); // eslint-disable-line no-useless-escape - var ARIA_ATTR = seal(/^aria-[\-\w]+$/); // eslint-disable-line no-useless-escape - var IS_ALLOWED_URI = seal(/^(?:(?:(?:f|ht)tps?|mailto|tel|callto|cid|xmpp):|[^a-z]|[a-z+.\-]+(?:[^a-z+.\-:]|$))/i // eslint-disable-line no-useless-escape - ); - var IS_SCRIPT_OR_DATA = seal(/^(?:\w+script|data):/i); - var ATTR_WHITESPACE = seal(/[\u0000-\u0020\u00A0\u1680\u180E\u2000-\u2029\u205F\u3000]/g // eslint-disable-line no-control-regex - ); - - var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; - - function _toConsumableArray$1(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } } - - var getGlobal = function getGlobal() { - return typeof window === 'undefined' ? null : window; - }; - - /** - * Creates a no-op policy for internal use only. - * Don't export this function outside this module! - * @param {?TrustedTypePolicyFactory} trustedTypes The policy factory. - * @param {Document} document The document object (to determine policy name suffix) - * @return {?TrustedTypePolicy} The policy created (or null, if Trusted Types - * are not supported). - */ - var _createTrustedTypesPolicy = function _createTrustedTypesPolicy(trustedTypes, document) { - if ((typeof trustedTypes === 'undefined' ? 'undefined' : _typeof(trustedTypes)) !== 'object' || typeof trustedTypes.createPolicy !== 'function') { - return null; - } - - // Allow the callers to control the unique policy name - // by adding a data-tt-policy-suffix to the script element with the DOMPurify. - // Policy creation with duplicate names throws in Trusted Types. - var suffix = null; - var ATTR_NAME = 'data-tt-policy-suffix'; - if (document.currentScript && document.currentScript.hasAttribute(ATTR_NAME)) { - suffix = document.currentScript.getAttribute(ATTR_NAME); - } - - var policyName = 'dompurify' + (suffix ? '#' + suffix : ''); - - try { - return trustedTypes.createPolicy(policyName, { - createHTML: function createHTML(html$$1) { - return html$$1; - } - }); - } catch (_) { - // Policy creation failed (most likely another DOMPurify script has - // already run). Skip creating the policy, as this will only cause errors - // if TT are enforced. - console.warn('TrustedTypes policy ' + policyName + ' could not be created.'); - return null; - } - }; - - function createDOMPurify() { - var window = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : getGlobal(); - - var DOMPurify = function DOMPurify(root) { - return createDOMPurify(root); - }; - - /** - * Version label, exposed for easier checks - * if DOMPurify is up to date or not - */ - DOMPurify.version = '2.2.6'; - - /** - * Array of elements that DOMPurify removed during sanitation. - * Empty if nothing was removed. - */ - DOMPurify.removed = []; - - if (!window || !window.document || window.document.nodeType !== 9) { - // Not running in a browser, provide a factory function - // so that you can pass your own Window - DOMPurify.isSupported = false; - - return DOMPurify; - } - - var originalDocument = window.document; - - var document = window.document; - var DocumentFragment = window.DocumentFragment, - HTMLTemplateElement = window.HTMLTemplateElement, - Node = window.Node, - Element = window.Element, - NodeFilter = window.NodeFilter, - _window$NamedNodeMap = window.NamedNodeMap, - NamedNodeMap = _window$NamedNodeMap === undefined ? window.NamedNodeMap || window.MozNamedAttrMap : _window$NamedNodeMap, - Text = window.Text, - Comment = window.Comment, - DOMParser = window.DOMParser, - trustedTypes = window.trustedTypes; - - - var ElementPrototype = Element.prototype; - - var cloneNode = lookupGetter(ElementPrototype, 'cloneNode'); - var getNextSibling = lookupGetter(ElementPrototype, 'nextSibling'); - var getChildNodes = lookupGetter(ElementPrototype, 'childNodes'); - var getParentNode = lookupGetter(ElementPrototype, 'parentNode'); - - // As per issue #47, the web-components registry is inherited by a - // new document created via createHTMLDocument. As per the spec - // (http://w3c.github.io/webcomponents/spec/custom/#creating-and-passing-registries) - // a new empty registry is used when creating a template contents owner - // document, so we use that as our parent document to ensure nothing - // is inherited. - if (typeof HTMLTemplateElement === 'function') { - var template = document.createElement('template'); - if (template.content && template.content.ownerDocument) { - document = template.content.ownerDocument; - } - } - - var trustedTypesPolicy = _createTrustedTypesPolicy(trustedTypes, originalDocument); - var emptyHTML = trustedTypesPolicy && RETURN_TRUSTED_TYPE ? trustedTypesPolicy.createHTML('') : ''; - - var implementation = document.implementation; - //var importNode = originalDocument.importNode; - - - var documentMode = {}; - try { - documentMode = clone(document).documentMode ? document.documentMode : {}; - } catch (_) {} - - var hooks = {}; - - /** - * Expose whether this browser supports running the full DOMPurify. - */ - DOMPurify.isSupported = implementation && typeof implementation.createHTMLDocument !== 'undefined' && documentMode !== 9; - - var MUSTACHE_EXPR$$1 = MUSTACHE_EXPR, - ERB_EXPR$$1 = ERB_EXPR, - DATA_ATTR$$1 = DATA_ATTR, - ARIA_ATTR$$1 = ARIA_ATTR, - IS_SCRIPT_OR_DATA$$1 = IS_SCRIPT_OR_DATA, - ATTR_WHITESPACE$$1 = ATTR_WHITESPACE; - var IS_ALLOWED_URI$$1 = IS_ALLOWED_URI; - - /** - * We consider the elements and attributes below to be safe. Ideally - * don't add any new ones but feel free to remove unwanted ones. - */ - - /* allowed element names */ - - var ALLOWED_TAGS = null; - var DEFAULT_ALLOWED_TAGS = addToSet({}, [].concat(_toConsumableArray$1(html), _toConsumableArray$1(svg), _toConsumableArray$1(svgFilters), _toConsumableArray$1(mathMl), _toConsumableArray$1(text))); - - /* Allowed attribute names */ - var ALLOWED_ATTR = null; - var DEFAULT_ALLOWED_ATTR = addToSet({}, [].concat(_toConsumableArray$1(html$1), _toConsumableArray$1(svg$1), _toConsumableArray$1(mathMl$1), _toConsumableArray$1(xml))); - - /* Explicitly forbidden tags (overrides ALLOWED_TAGS/ADD_TAGS) */ - var FORBID_TAGS = null; - - /* Explicitly forbidden attributes (overrides ALLOWED_ATTR/ADD_ATTR) */ - var FORBID_ATTR = null; - - /* Decide if ARIA attributes are okay */ - var ALLOW_ARIA_ATTR = true; - - /* Decide if custom data attributes are okay */ - var ALLOW_DATA_ATTR = true; - - /* Decide if unknown protocols are okay */ - var ALLOW_UNKNOWN_PROTOCOLS = false; - - /* Output should be safe for common template engines. - * This means, DOMPurify removes data attributes, mustaches and ERB - */ - var SAFE_FOR_TEMPLATES = false; - - /* Decide if document with <html>... should be returned */ - var WHOLE_DOCUMENT = false; - - /* Track whether config is already set on this instance of DOMPurify. */ - var SET_CONFIG = false; - - /* Decide if all elements (e.g. style, script) must be children of - * document.body. By default, browsers might move them to document.head */ - var FORCE_BODY = false; - - /* Decide if a DOM `HTMLBodyElement` should be returned, instead of a html - * string (or a TrustedHTML object if Trusted Types are supported). - * If `WHOLE_DOCUMENT` is enabled a `HTMLHtmlElement` will be returned instead - */ - var RETURN_DOM = false; - - /* Decide if a DOM `DocumentFragment` should be returned, instead of a html - * string (or a TrustedHTML object if Trusted Types are supported) */ - var RETURN_DOM_FRAGMENT = false; - - /* If `RETURN_DOM` or `RETURN_DOM_FRAGMENT` is enabled, decide if the returned DOM - * `Node` is imported into the current `Document`. If this flag is not enabled the - * `Node` will belong (its ownerDocument) to a fresh `HTMLDocument`, created by - * DOMPurify. - * - * This defaults to `true` starting DOMPurify 2.2.0. Note that setting it to `false` - * might cause XSS from attacks hidden in closed shadowroots in case the browser - * supports Declarative Shadow: DOM https://web.dev/declarative-shadow-dom/ - */ - var RETURN_DOM_IMPORT = true; - - /* Try to return a Trusted Type object instead of a string, return a string in - * case Trusted Types are not supported */ - var RETURN_TRUSTED_TYPE = false; - - /* Output should be free from DOM clobbering attacks? */ - var SANITIZE_DOM = true; - - /* Keep element content when removing element? */ - var KEEP_CONTENT = true; - - /* If a `Node` is passed to sanitize(), then performs sanitization in-place instead - * of importing it into a new Document and returning a sanitized copy */ - var IN_PLACE = false; - - /* Allow usage of profiles like html, svg and mathMl */ - var USE_PROFILES = {}; - - /* Tags to ignore content of when KEEP_CONTENT is true */ - var FORBID_CONTENTS = addToSet({}, ['annotation-xml', 'audio', 'colgroup', 'desc', 'foreignobject', 'head', 'iframe', 'math', 'mi', 'mn', 'mo', 'ms', 'mtext', 'noembed', 'noframes', 'noscript', 'plaintext', 'script', 'style', 'svg', 'template', 'thead', 'title', 'video', 'xmp']); - - /* Tags that are safe for data: URIs */ - var DATA_URI_TAGS = null; - var DEFAULT_DATA_URI_TAGS = addToSet({}, ['audio', 'video', 'img', 'source', 'image', 'track']); - - /* Attributes safe for values like "javascript:" */ - var URI_SAFE_ATTRIBUTES = null; - var DEFAULT_URI_SAFE_ATTRIBUTES = addToSet({}, ['alt', 'class', 'for', 'id', 'label', 'name', 'pattern', 'placeholder', 'summary', 'title', 'value', 'style', 'xmlns']); - - /* Keep a reference to config to pass to hooks */ - var CONFIG = null; - - /* Ideally, do not touch anything below this line */ - /* ______________________________________________ */ - - var formElement = document.createElement('form'); - - /** - * _parseConfig - * - * @param {Object} cfg optional config literal - */ - // eslint-disable-next-line complexity - var _parseConfig = function _parseConfig(cfg) { - if (CONFIG && CONFIG === cfg) { - return; - } - - /* Shield configuration object from tampering */ - if (!cfg || (typeof cfg === 'undefined' ? 'undefined' : _typeof(cfg)) !== 'object') { - cfg = {}; - } - - /* Shield configuration object from prototype pollution */ - cfg = clone(cfg); - - /* Set configuration parameters */ - ALLOWED_TAGS = 'ALLOWED_TAGS' in cfg ? addToSet({}, cfg.ALLOWED_TAGS) : DEFAULT_ALLOWED_TAGS; - ALLOWED_ATTR = 'ALLOWED_ATTR' in cfg ? addToSet({}, cfg.ALLOWED_ATTR) : DEFAULT_ALLOWED_ATTR; - URI_SAFE_ATTRIBUTES = 'ADD_URI_SAFE_ATTR' in cfg ? addToSet(clone(DEFAULT_URI_SAFE_ATTRIBUTES), cfg.ADD_URI_SAFE_ATTR) : DEFAULT_URI_SAFE_ATTRIBUTES; - DATA_URI_TAGS = 'ADD_DATA_URI_TAGS' in cfg ? addToSet(clone(DEFAULT_DATA_URI_TAGS), cfg.ADD_DATA_URI_TAGS) : DEFAULT_DATA_URI_TAGS; - FORBID_TAGS = 'FORBID_TAGS' in cfg ? addToSet({}, cfg.FORBID_TAGS) : {}; - FORBID_ATTR = 'FORBID_ATTR' in cfg ? addToSet({}, cfg.FORBID_ATTR) : {}; - USE_PROFILES = 'USE_PROFILES' in cfg ? cfg.USE_PROFILES : false; - ALLOW_ARIA_ATTR = cfg.ALLOW_ARIA_ATTR !== false; // Default true - ALLOW_DATA_ATTR = cfg.ALLOW_DATA_ATTR !== false; // Default true - ALLOW_UNKNOWN_PROTOCOLS = cfg.ALLOW_UNKNOWN_PROTOCOLS || false; // Default false - SAFE_FOR_TEMPLATES = cfg.SAFE_FOR_TEMPLATES || false; // Default false - WHOLE_DOCUMENT = cfg.WHOLE_DOCUMENT || false; // Default false - RETURN_DOM = cfg.RETURN_DOM || false; // Default false - RETURN_DOM_FRAGMENT = cfg.RETURN_DOM_FRAGMENT || false; // Default false - RETURN_DOM_IMPORT = cfg.RETURN_DOM_IMPORT !== false; // Default true - RETURN_TRUSTED_TYPE = cfg.RETURN_TRUSTED_TYPE || false; // Default false - FORCE_BODY = cfg.FORCE_BODY || false; // Default false - SANITIZE_DOM = cfg.SANITIZE_DOM !== false; // Default true - KEEP_CONTENT = cfg.KEEP_CONTENT !== false; // Default true - IN_PLACE = cfg.IN_PLACE || false; // Default false - IS_ALLOWED_URI$$1 = cfg.ALLOWED_URI_REGEXP || IS_ALLOWED_URI$$1; - if (SAFE_FOR_TEMPLATES) { - ALLOW_DATA_ATTR = false; - } - - if (RETURN_DOM_FRAGMENT) { - RETURN_DOM = true; - } - - /* Parse profile info */ - if (USE_PROFILES) { - ALLOWED_TAGS = addToSet({}, [].concat(_toConsumableArray$1(text))); - ALLOWED_ATTR = []; - if (USE_PROFILES.html === true) { - addToSet(ALLOWED_TAGS, html); - addToSet(ALLOWED_ATTR, html$1); - } - - if (USE_PROFILES.svg === true) { - addToSet(ALLOWED_TAGS, svg); - addToSet(ALLOWED_ATTR, svg$1); - addToSet(ALLOWED_ATTR, xml); - } - - if (USE_PROFILES.svgFilters === true) { - addToSet(ALLOWED_TAGS, svgFilters); - addToSet(ALLOWED_ATTR, svg$1); - addToSet(ALLOWED_ATTR, xml); - } - - if (USE_PROFILES.mathMl === true) { - addToSet(ALLOWED_TAGS, mathMl); - addToSet(ALLOWED_ATTR, mathMl$1); - addToSet(ALLOWED_ATTR, xml); - } - } - - /* Merge configuration parameters */ - if (cfg.ADD_TAGS) { - if (ALLOWED_TAGS === DEFAULT_ALLOWED_TAGS) { - ALLOWED_TAGS = clone(ALLOWED_TAGS); - } - - addToSet(ALLOWED_TAGS, cfg.ADD_TAGS); - } - - if (cfg.ADD_ATTR) { - if (ALLOWED_ATTR === DEFAULT_ALLOWED_ATTR) { - ALLOWED_ATTR = clone(ALLOWED_ATTR); - } - - addToSet(ALLOWED_ATTR, cfg.ADD_ATTR); - } - - if (cfg.ADD_URI_SAFE_ATTR) { - addToSet(URI_SAFE_ATTRIBUTES, cfg.ADD_URI_SAFE_ATTR); - } - - /* Add #text in case KEEP_CONTENT is set to true */ - if (KEEP_CONTENT) { - ALLOWED_TAGS['#text'] = true; - } - - /* Add html, head and body to ALLOWED_TAGS in case WHOLE_DOCUMENT is true */ - if (WHOLE_DOCUMENT) { - addToSet(ALLOWED_TAGS, ['html', 'head', 'body']); - } - - /* Add tbody to ALLOWED_TAGS in case tables are permitted, see #286, #365 */ - if (ALLOWED_TAGS.table) { - addToSet(ALLOWED_TAGS, ['tbody']); - delete FORBID_TAGS.tbody; - } - - // Prevent further manipulation of configuration. - // Not available in IE8, Safari 5, etc. - if (freeze) { - freeze(cfg); - } - - CONFIG = cfg; - }; - - var MATHML_TEXT_INTEGRATION_POINTS = addToSet({}, ['mi', 'mo', 'mn', 'ms', 'mtext']); - - var HTML_INTEGRATION_POINTS = addToSet({}, ['foreignobject', 'desc', 'title', 'annotation-xml']); - - /* Keep track of all possible SVG and MathML tags - * so that we can perform the namespace checks - * correctly. */ - var ALL_SVG_TAGS = addToSet({}, svg); - addToSet(ALL_SVG_TAGS, svgFilters); - addToSet(ALL_SVG_TAGS, svgDisallowed); - - var ALL_MATHML_TAGS = addToSet({}, mathMl); - addToSet(ALL_MATHML_TAGS, mathMlDisallowed); - - var MATHML_NAMESPACE = 'http://www.w3.org/1998/Math/MathML'; - var SVG_NAMESPACE = 'http://www.w3.org/2000/svg'; - var HTML_NAMESPACE = 'http://www.w3.org/1999/xhtml'; - - /** - * - * - * @param {Element} element a DOM element whose namespace is being checked - * @returns {boolean} Return false if the element has a - * namespace that a spec-compliant parser would never - * return. Return true otherwise. - */ - var _checkValidNamespace = function _checkValidNamespace(element) { - var parent = getParentNode(element); - - // In JSDOM, if we're inside shadow DOM, then parentNode - // can be null. We just simulate parent in this case. - if (!parent || !parent.tagName) { - parent = { - namespaceURI: HTML_NAMESPACE, - tagName: 'template' - }; - } - - var tagName = element.tagName.toLowerCase(); - var parentTagName = parent.tagName.toLowerCase(); - - if (element.namespaceURI === SVG_NAMESPACE) { - // The only way to switch from HTML namespace to SVG - // is via <svg>. If it happens via any other tag, then - // it should be killed. - if (parent.namespaceURI === HTML_NAMESPACE) { - return tagName === 'svg'; - } - - // The only way to switch from MathML to SVG is via - // svg if parent is either <annotation-xml> or MathML - // text integration points. - if (parent.namespaceURI === MATHML_NAMESPACE) { - return tagName === 'svg' && (parentTagName === 'annotation-xml' || MATHML_TEXT_INTEGRATION_POINTS[parentTagName]); - } - - // We only allow elements that are defined in SVG - // spec. All others are disallowed in SVG namespace. - return Boolean(ALL_SVG_TAGS[tagName]); - } - - if (element.namespaceURI === MATHML_NAMESPACE) { - // The only way to switch from HTML namespace to MathML - // is via <math>. If it happens via any other tag, then - // it should be killed. - if (parent.namespaceURI === HTML_NAMESPACE) { - return tagName === 'math'; - } - - // The only way to switch from SVG to MathML is via - // <math> and HTML integration points - if (parent.namespaceURI === SVG_NAMESPACE) { - return tagName === 'math' && HTML_INTEGRATION_POINTS[parentTagName]; - } - - // We only allow elements that are defined in MathML - // spec. All others are disallowed in MathML namespace. - return Boolean(ALL_MATHML_TAGS[tagName]); - } - - if (element.namespaceURI === HTML_NAMESPACE) { - // The only way to switch from SVG to HTML is via - // HTML integration points, and from MathML to HTML - // is via MathML text integration points - if (parent.namespaceURI === SVG_NAMESPACE && !HTML_INTEGRATION_POINTS[parentTagName]) { - return false; - } - - if (parent.namespaceURI === MATHML_NAMESPACE && !MATHML_TEXT_INTEGRATION_POINTS[parentTagName]) { - return false; - } - - // Certain elements are allowed in both SVG and HTML - // namespace. We need to specify them explicitly - // so that they don't get erronously deleted from - // HTML namespace. - var commonSvgAndHTMLElements = addToSet({}, ['title', 'style', 'font', 'a', 'script']); - - // We disallow tags that are specific for MathML - // or SVG and should never appear in HTML namespace - return !ALL_MATHML_TAGS[tagName] && (commonSvgAndHTMLElements[tagName] || !ALL_SVG_TAGS[tagName]); - } - - // The code should never reach this place (this means - // that the element somehow got namespace that is not - // HTML, SVG or MathML). Return false just in case. - return false; - }; - - /** - * _forceRemove - * - * @param {Node} node a DOM node - */ - var _forceRemove = function _forceRemove(node) { - DOMPurify.removed.push({ element: node }); - try { - node.parentNode.removeChild(node); - } catch (_) { - try { - node.outerHTML = emptyHTML; - } catch (_) { - node.remove(); - } - } - }; - - /** - * _removeAttribute - * - * @param {String} name an Attribute name - * @param {Node} node a DOM node - */ - var _removeAttribute = function _removeAttribute(name, node) { - try { - DOMPurify.removed.push({ - attribute: node.getAttributeNode(name), - from: node - }); - } catch (_) { - DOMPurify.removed.push({ - attribute: null, - from: node - }); - } - - node.removeAttribute(name); - }; - - /** - * _initDocument - * - * @param {String} dirty a string of dirty markup - * @return {Document} a DOM, filled with the dirty markup - */ - var _initDocument = function _initDocument(dirty) { - /* Create a HTML document */ - var doc = void 0; - var leadingWhitespace = void 0; - - if (FORCE_BODY) { - dirty = '<remove></remove>' + dirty; - } else { - /* If FORCE_BODY isn't used, leading whitespace needs to be preserved manually */ - var matches = dirty.match(/^[\r\n\t ]+/); - leadingWhitespace = matches && matches[0]; - } - - var dirtyPayload = trustedTypesPolicy ? trustedTypesPolicy.createHTML(dirty) : dirty; - /* Use the DOMParser API by default, fallback later if needs be */ - try { - doc = new DOMParser().parseFromString(dirtyPayload, 'text/html'); - } catch (_) {} - - /* Use createHTMLDocument in case DOMParser is not available */ - if (!doc || !doc.documentElement) { - doc = implementation.createHTMLDocument(''); - var _doc = doc, - body = _doc.body; - - body.parentNode.removeChild(body.parentNode.firstElementChild); - body.outerHTML = dirtyPayload; - } - - if (dirty && leadingWhitespace) { - doc.body.insertBefore(document.createTextNode(leadingWhitespace), doc.body.childNodes[0] || null); - } - - /* Work on whole document or just its body */ - return doc.getElementsByTagName(WHOLE_DOCUMENT ? 'html' : 'body')[0]; - }; - - /** - * _createIterator - * - * @param {Document} root document/fragment to create iterator for - * @return {Iterator} iterator instance - */ - var _createIterator = function _createIterator(root) { - let whatToShow = NodeFilter.SHOW_ELEMENT | NodeFilter.SHOW_COMMENT | NodeFilter.SHOW_TEXT; - let filter = function () { - return NodeFilter.FILTER_ACCEPT; - }; - if(root.ownerDocument) { - return root.ownerDocument.createNodeIterator(root,whatToShow,filter,false); - } else { - return root.createNodeIterator(root,whatToShow,filter,false); - } - }; - - /** - * _isClobbered - * - * @param {Node} elm element to check for clobbering attacks - * @return {Boolean} true if clobbered, false if safe - */ - var _isClobbered = function _isClobbered(elm) { - if (elm instanceof Text || elm instanceof Comment) { - return false; - } - - if (typeof elm.nodeName !== 'string' || typeof elm.textContent !== 'string' || typeof elm.removeChild !== 'function' || !(elm.attributes instanceof NamedNodeMap) || typeof elm.removeAttribute !== 'function' || typeof elm.setAttribute !== 'function' || typeof elm.namespaceURI !== 'string' || typeof elm.insertBefore !== 'function') { - return true; - } - - return false; - }; - - /** - * _isNode - * - * @param {Node} obj object to check whether it's a DOM node - * @return {Boolean} true is object is a DOM node - */ - var _isNode = function _isNode(object) { - return (typeof Node === 'undefined' ? 'undefined' : _typeof(Node)) === 'object' ? object instanceof Node : object && (typeof object === 'undefined' ? 'undefined' : _typeof(object)) === 'object' && typeof object.nodeType === 'number' && typeof object.nodeName === 'string'; - }; - - /** - * _executeHook - * Execute user configurable hooks - * - * @param {String} entryPoint Name of the hook's entry point - * @param {Node} currentNode node to work on with the hook - * @param {Object} data additional hook parameters - */ - var _executeHook = function _executeHook(entryPoint, currentNode, data) { - if (!hooks[entryPoint]) { - return; - } - - hooks[entryPoint].forEach(function (hook) { - hook.call(DOMPurify, currentNode, data, CONFIG); - }); - }; - - /** - * _sanitizeElements - * - * @protect nodeName - * @protect textContent - * @protect removeChild - * - * @param {Node} currentNode to check for permission to exist - * @return {Boolean} true if node was killed, false if left alive - */ - var _sanitizeElements = function _sanitizeElements(currentNode) { - var content = void 0; - - /* Execute a hook if present */ - _executeHook('beforeSanitizeElements', currentNode, null); - - /* Check if element is clobbered or can clobber */ - if (_isClobbered(currentNode)) { - _forceRemove(currentNode); - return true; - } - - /* Check if tagname contains Unicode */ - if (currentNode.nodeName.match(/[\u0080-\uFFFF]/)) { - _forceRemove(currentNode); - return true; - } - - /* Now let's check the element's type and name */ - var tagName = currentNode.nodeName.toLowerCase(); - - /* Execute a hook if present */ - _executeHook('uponSanitizeElement', currentNode, { - tagName: tagName, - allowedTags: ALLOWED_TAGS - }); - - /* Detect mXSS attempts abusing namespace confusion */ - if (!_isNode(currentNode.firstElementChild) && (!_isNode(currentNode.content) || !_isNode(currentNode.content.firstElementChild)) && /<[/\w]/g.test(currentNode.innerHTML) && /<[/\w]/g.text(currentNode.textContent)) { - _forceRemove(currentNode); - return true; - } - - /* Remove element if anything forbids its presence */ - if (!ALLOWED_TAGS[tagName] || FORBID_TAGS[tagName]) { - /* Keep content except for bad-listed elements */ - if (KEEP_CONTENT && !FORBID_CONTENTS[tagName]) { - var parentNode = getParentNode(currentNode); - var childNodes = getChildNodes(currentNode); - var childCount = childNodes.length; - for (var i = childCount - 1; i >= 0; --i) { - parentNode.insertBefore(cloneNode(childNodes[i], true), getNextSibling(currentNode)); - } - } - - _forceRemove(currentNode); - return true; - } - - /* Check whether element has a valid namespace */ - if (currentNode instanceof Element && !_checkValidNamespace(currentNode)) { - _forceRemove(currentNode); - return true; - } - - if ((tagName === 'noscript' || tagName === 'noembed') && /<\/no(script|embed)/i.test(currentNode.innerHTML)) { - _forceRemove(currentNode); - return true; - } - - /* Sanitize element content to be template-safe */ - if (SAFE_FOR_TEMPLATES && currentNode.nodeType === 3) { - /* Get the element's text content */ - content = currentNode.textContent; - content = content.replace(MUSTACHE_EXPR$$1, ' '); - content = content.replace(ERB_EXPR$$1, ' '); - if (currentNode.textContent !== content) { - DOMPurify.removed.push({ element: currentNode.cloneNode() }); - currentNode.textContent = content; - } - } - - /* Execute a hook if present */ - _executeHook('afterSanitizeElements', currentNode, null); - - return false; - }; - - /** - * _isValidAttribute - * - * @param {string} lcTag Lowercase tag name of containing element. - * @param {string} lcName Lowercase attribute name. - * @param {string} value Attribute value. - * @return {Boolean} Returns true if `value` is valid, otherwise false. - */ - // eslint-disable-next-line complexity - var _isValidAttribute = function _isValidAttribute(lcTag, lcName, value) { - /* Make sure attribute cannot clobber */ - if (SANITIZE_DOM && (lcName === 'id' || lcName === 'name') && (value in document || value in formElement)) { - return false; - } - - /* Allow valid data-* attributes: At least one character after "-" - (https://html.spec.whatwg.org/multipage/dom.html#embedding-custom-non-visible-data-with-the-data-*-attributes) - XML-compatible (https://html.spec.whatwg.org/multipage/infrastructure.html#xml-compatible and http://www.w3.org/TR/xml/#d0e804) - We don't need to check the value; it's always URI safe. */ - if (ALLOW_DATA_ATTR && DATA_ATTR$$1.test(lcName)) ; else if (ALLOW_ARIA_ATTR && ARIA_ATTR$$1.test(lcName)) ; else if (!ALLOWED_ATTR[lcName] || FORBID_ATTR[lcName]) { - return false; - - /* Check value is safe. First, is attr inert? If so, is safe */ - } else if (URI_SAFE_ATTRIBUTES[lcName]) ; else if (IS_ALLOWED_URI$$1.test(value.replace(ATTR_WHITESPACE$$1, ''))) ; else if ((lcName === 'src' || lcName === 'xlink:href' || lcName === 'href') && lcTag !== 'script' && value.indexOf('data:') === 0 && DATA_URI_TAGS[lcTag]) ; else if (ALLOW_UNKNOWN_PROTOCOLS && !IS_SCRIPT_OR_DATA$$1.test(value.replace(ATTR_WHITESPACE$$1, ''))) ; else if (!value) ; else { - return false; - } - - return true; - }; - - /** - * _sanitizeAttributes - * - * @protect attributes - * @protect nodeName - * @protect removeAttribute - * @protect setAttribute - * - * @param {Node} currentNode to sanitize - */ - var _sanitizeAttributes = function _sanitizeAttributes(currentNode) { - var attr = void 0; - var value = void 0; - var lcName = void 0; - var l = void 0; - /* Execute a hook if present */ - _executeHook('beforeSanitizeAttributes', currentNode, null); - - var attributes = currentNode.attributes; - - /* Check if we have attributes; if not we might have a text node */ - - if (!attributes) { - return; - } - - var hookEvent = { - attrName: '', - attrValue: '', - keepAttr: true, - allowedAttributes: ALLOWED_ATTR - }; - l = attributes.length; - - /* Go backwards over all attributes; safely remove bad ones */ - while (l--) { - attr = attributes[l]; - var _attr = attr, - name = _attr.name, - namespaceURI = _attr.namespaceURI; - - value = attr.value.trim(); - lcName = name.toLowerCase(name); - - /* Execute a hook if present */ - hookEvent.attrName = lcName; - hookEvent.attrValue = value; - hookEvent.keepAttr = true; - hookEvent.forceKeepAttr = undefined; // Allows developers to see this is a property they can set - _executeHook('uponSanitizeAttribute', currentNode, hookEvent); - value = hookEvent.attrValue; - /* Did the hooks approve of the attribute? */ - if (hookEvent.forceKeepAttr) { - continue; - } - - /* Remove attribute */ - _removeAttribute(name, currentNode); - - /* Did the hooks approve of the attribute? */ - if (!hookEvent.keepAttr) { - continue; - } - - /* Work around a security issue in jQuery 3.0 */ - if (/\/>/i.test(value)) { - _removeAttribute(name, currentNode); - continue; - } - - /* Sanitize attribute content to be template-safe */ - if (SAFE_FOR_TEMPLATES) { - value = value.replace(MUSTACHE_EXPR$$1, ' '); - value = value.replace(ERB_EXPR$$1, ' '); - } - - /* Is `value` valid for this attribute? */ - var lcTag = currentNode.nodeName.toLowerCase(); - if (!_isValidAttribute(lcTag, lcName, value)) { - continue; - } - - /* Handle invalid data-* attribute set by try-catching it */ - try { - if (namespaceURI) { - currentNode.setAttributeNS(namespaceURI, name, value); - } else { - /* Fallback to setAttribute() for browser-unrecognized namespaces e.g. "x-schema". */ - currentNode.setAttribute(name, value); - } - - DOMPurify.removed.pop(); - } catch (_) {} - } - - /* Execute a hook if present */ - _executeHook('afterSanitizeAttributes', currentNode, null); - }; - - /** - * _sanitizeShadowDOM - * - * @param {DocumentFragment} fragment to iterate over recursively - */ - var _sanitizeShadowDOM = function _sanitizeShadowDOM(fragment) { - var shadowNode = void 0; - var shadowIterator = _createIterator(fragment); - - /* Execute a hook if present */ - _executeHook('beforeSanitizeShadowDOM', fragment, null); - - while (shadowNode = shadowIterator.nextNode()) { - /* Execute a hook if present */ - _executeHook('uponSanitizeShadowNode', shadowNode, null); - - /* Sanitize tags and elements */ - if (_sanitizeElements(shadowNode)) { - continue; - } - - /* Deep shadow DOM detected */ - if (shadowNode.content instanceof DocumentFragment) { - _sanitizeShadowDOM(shadowNode.content); - } - - /* Check attributes, sanitize if necessary */ - _sanitizeAttributes(shadowNode); - } - - /* Execute a hook if present */ - _executeHook('afterSanitizeShadowDOM', fragment, null); - }; - - /** - * Sanitize - * Public method providing core sanitation functionality - * - * @param {String|Node} dirty string or DOM node - * @param {Object} configuration object - */ - // eslint-disable-next-line complexity - DOMPurify.sanitize = function (dirty, cfg) { - var body = void 0; - var importedNode = void 0; - var currentNode = void 0; - var oldNode = void 0; - var returnNode = void 0; - /* Make sure we have a string to sanitize. - DO NOT return early, as this will return the wrong type if - the user has requested a DOM object rather than a string */ - if (!dirty) { - dirty = '<!-->'; - } - - /* Stringify, in case dirty is an object */ - if (typeof dirty !== 'string' && !_isNode(dirty)) { - // eslint-disable-next-line no-negated-condition - if (typeof dirty.toString !== 'function') { - throw typeErrorCreate('toString is not a function'); - } else { - dirty = dirty.toString(); - if (typeof dirty !== 'string') { - throw typeErrorCreate('dirty is not a string, aborting'); - } - } - } - - /* Check we can run. Otherwise fall back or ignore */ - if (!DOMPurify.isSupported) { - if (_typeof(window.toStaticHTML) === 'object' || typeof window.toStaticHTML === 'function') { - if (typeof dirty === 'string') { - return window.toStaticHTML(dirty); - } - - if (_isNode(dirty)) { - return window.toStaticHTML(dirty.outerHTML); - } - } - - return dirty; - } - - /* Assign config vars */ - if (!SET_CONFIG) { - _parseConfig(cfg); - } - - /* Clean up removed elements */ - DOMPurify.removed = []; - - /* Check if dirty is correctly typed for IN_PLACE */ - if (typeof dirty === 'string') { - IN_PLACE = false; - } - - if (IN_PLACE) ; else if (dirty instanceof Node) { - /* If dirty is a DOM element, append to an empty document to avoid - elements being stripped by the parser */ - body = _initDocument('<!---->'); - importedNode = body.ownerDocument.importNode(dirty, true); - if (importedNode.nodeType === 1 && importedNode.nodeName === 'BODY') { - /* Node is already a body, use as is */ - body = importedNode; - } else if (importedNode.nodeName === 'HTML') { - body = importedNode; - } else { - // eslint-disable-next-line unicorn/prefer-node-append - body.appendChild(importedNode); - } - } else { - /* Exit directly if we have nothing to do */ - if (!RETURN_DOM && !SAFE_FOR_TEMPLATES && !WHOLE_DOCUMENT && - // eslint-disable-next-line unicorn/prefer-includes - dirty.indexOf('<') === -1) { - return trustedTypesPolicy && RETURN_TRUSTED_TYPE ? trustedTypesPolicy.createHTML(dirty) : dirty; - } - - /* Initialize the document to work on */ - body = _initDocument(dirty); - - /* Check we have a DOM node from the data */ - if (!body) { - return RETURN_DOM ? null : emptyHTML; - } - } - - /* Remove first element node (ours) if FORCE_BODY is set */ - if (body && FORCE_BODY) { - _forceRemove(body.firstChild); - } - - /* Get node iterator */ - var nodeIterator = _createIterator(IN_PLACE ? dirty : body); - - /* Now start iterating over the created document */ - while (currentNode = nodeIterator.nextNode()) { - /* Fix IE's strange behavior with manipulated textNodes #89 */ - if (currentNode.nodeType === 3 && currentNode === oldNode) { - continue; - } - - /* Sanitize tags and elements */ - if (_sanitizeElements(currentNode)) { - continue; - } - - /* Shadow DOM detected, sanitize it */ - if (currentNode.content instanceof DocumentFragment) { - _sanitizeShadowDOM(currentNode.content); - } - - /* Check attributes, sanitize if necessary */ - _sanitizeAttributes(currentNode); - - oldNode = currentNode; - } - - oldNode = null; - - /* If we sanitized `dirty` in-place, return it. */ - if (IN_PLACE) { - return dirty; - } - - /* Return sanitized string or DOM */ - if (RETURN_DOM) { - if (RETURN_DOM_FRAGMENT) { - //returnNode = createDocumentFragment.call(body.ownerDocument); - // untested - returnNode = body.ownerDocument.createDocumentFragment(); - - while (body.firstChild) { - // eslint-disable-next-line unicorn/prefer-node-append - returnNode.appendChild(body.firstChild); - } - } else { - returnNode = body; - } - - if (RETURN_DOM_IMPORT) { - /* - AdoptNode() is not used because internal state is not reset - (e.g. the past names map of a HTMLFormElement), this is safe - in theory but we would rather not risk another attack vector. - The state that is cloned by importNode() is explicitly defined - by the specs. - */ - //returnNode = importNode.call(originalDocument, returnNode, true); - // untested - returnNode = originalDocument.importNode(returnNode, true); - } - - return returnNode; - } - - var serializedHTML = WHOLE_DOCUMENT ? body.outerHTML : body.innerHTML; - - /* Sanitize final string template-safe */ - if (SAFE_FOR_TEMPLATES) { - serializedHTML = serializedHTML.replace(MUSTACHE_EXPR$$1, ' '); - serializedHTML = serializedHTML.replace(ERB_EXPR$$1, ' '); - } - - return trustedTypesPolicy && RETURN_TRUSTED_TYPE ? trustedTypesPolicy.createHTML(serializedHTML) : serializedHTML; - }; - - /** - * Public method to set the configuration once - * setConfig - * - * @param {Object} cfg configuration object - */ - DOMPurify.setConfig = function (cfg) { - _parseConfig(cfg); - SET_CONFIG = true; - }; - - /** - * Public method to remove the configuration - * clearConfig - * - */ - DOMPurify.clearConfig = function () { - CONFIG = null; - SET_CONFIG = false; - }; - - /** - * Public method to check if an attribute value is valid. - * Uses last set config, if any. Otherwise, uses config defaults. - * isValidAttribute - * - * @param {string} tag Tag name of containing element. - * @param {string} attr Attribute name. - * @param {string} value Attribute value. - * @return {Boolean} Returns true if `value` is valid. Otherwise, returns false. - */ - DOMPurify.isValidAttribute = function (tag, attr, value) { - /* Initialize shared config vars if necessary. */ - if (!CONFIG) { - _parseConfig({}); - } - - var lcTag = tag.toLowerCase(); - var lcName = attr.toLowerCase(); - return _isValidAttribute(lcTag, lcName, value); - }; - - /** - * AddHook - * Public method to add DOMPurify hooks - * - * @param {String} entryPoint entry point for the hook to add - * @param {Function} hookFunction function to execute - */ - DOMPurify.addHook = function (entryPoint, hookFunction) { - if (typeof hookFunction !== 'function') { - return; - } - - hooks[entryPoint] = hooks[entryPoint] || []; - hooks[entryPoint].push(hookFunction); - }; - - /** - * RemoveHook - * Public method to remove a DOMPurify hook at a given entryPoint - * (pops it from the stack of hooks if more are present) - * - * @param {String} entryPoint entry point for the hook to remove - */ - DOMPurify.removeHook = function (entryPoint) { - if (hooks[entryPoint]) { - hooks[entryPoint].pop(); - } - }; - - /** - * RemoveHooks - * Public method to remove all DOMPurify hooks at a given entryPoint - * - * @param {String} entryPoint entry point for the hooks to remove - */ - DOMPurify.removeHooks = function (entryPoint) { - if (hooks[entryPoint]) { - hooks[entryPoint] = []; - } - }; - - /** - * RemoveAllHooks - * Public method to remove all DOMPurify hooks - * - */ - DOMPurify.removeAllHooks = function () { - hooks = {}; - }; - - return DOMPurify; - } - - var purify = createDOMPurify(); var globalWin = window; var globalDoc = document; @@ -5774,60 +4467,6 @@ } options.allowedIframeUrls.push('https://www.youtube-nocookie.com/embed/'); - // Create new instance of DOMPurify for each editor instance so can - // have different allowed iframe URLs - // eslint-disable-next-line new-cap - var domPurify = purify(); - - // Allow iframes for things like YouTube, see: - // https://github.com/cure53/DOMPurify/issues/340#issuecomment-670758980 - domPurify.addHook('uponSanitizeElement', function (node, data) { - var allowedUrls = options.allowedIframeUrls; - - if (data.tagName === 'iframe') { - var src = attr(node, 'src') || ''; - - for (var i = 0; i < allowedUrls.length; i++) { - var url = allowedUrls[i]; - - if (isString(url) && src.substr(0, url.length) === url) { - return; - } - - // Handle regex - if (url.test && url.test(src)) { - return; - } - } - - // No match so remove - remove(node); - } - }); - - // Convert target attribute into data-sce-target attributes so XHTML format - // can allow them - domPurify.addHook('afterSanitizeAttributes', function (node) { - if ('target' in node) { - attr(node, 'data-sce-target', attr(node, 'target')); - } - - removeAttr(node, 'target'); - }); - - /** - * Sanitize HTML to avoid XSS - * - * @param {string} html - * @return {string} html - * @private - */ - function sanitize(html) { - return domPurify.sanitize(html, { - ADD_TAGS: ['iframe'], - ADD_ATTR: ['allowfullscreen', 'frameborder', 'target'] - }); - } /** * Creates the editor iframe and textarea * @private @@ -5992,7 +4631,7 @@ attr(sourceEditor, 'tabindex', tabIndex); attr(wysiwygEditor, 'tabindex', tabIndex); - rangeHelper = new RangeHelper(wysiwygWindow, null, sanitize); + rangeHelper = new RangeHelper(wysiwygWindow, null); // load any textarea value into the editor hide(original); @@ -6980,7 +5619,7 @@ } // Call plugins here with file? data.text = data['text/plain']; - data.html = sanitize(data['text/html']); + data.html = data['text/html']; handlePasteData(data); // If contentsFragment exists then we are already waiting for a @@ -7007,7 +5646,7 @@ rangeHelper.restoreRange(); - handlePasteData({ html: sanitize(html) }); + handlePasteData({ html: html }); }, 0); } }; @@ -7025,7 +5664,7 @@ if (data.html) { // Sanitize again in case plugins modified the HTML - pasteArea.innerHTML = sanitize(data.html); + pasteArea.innerHTML = data.html; // fix any invalid nesting fixNesting(pasteArea); @@ -7509,7 +6148,7 @@ value = '<p><br /></p>'; } - wysiwygBody.innerHTML = sanitize(value); + wysiwygBody.innerHTML = value; replaceEmoticons(); appendNewLine();