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| /*! @license DOMPurify 2.5.5 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/2.5.5/LICENSE */ | |
| (function (global, factory) { | |
| typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : | |
| typeof define === 'function' && define.amd ? define(factory) : | |
| (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.DOMPurify = factory()); | |
| })(this, (function () { 'use strict'; | |
| function _typeof(obj) { | |
| "@babel/helpers - typeof"; | |
| return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { | |
| return typeof obj; | |
| } : function (obj) { | |
| return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; | |
| }, _typeof(obj); | |
| } | |
| function _setPrototypeOf(o, p) { | |
| _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { | |
| o.__proto__ = p; | |
| return o; | |
| }; | |
| return _setPrototypeOf(o, p); | |
| } | |
| function _isNativeReflectConstruct() { | |
| if (typeof Reflect === "undefined" || !Reflect.construct) return false; | |
| if (Reflect.construct.sham) return false; | |
| if (typeof Proxy === "function") return true; | |
| try { | |
| Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); | |
| return true; | |
| } catch (e) { | |
| return false; | |
| } | |
| } | |
| function _construct(Parent, args, Class) { | |
| if (_isNativeReflectConstruct()) { | |
| _construct = Reflect.construct; | |
| } else { | |
| _construct = function _construct(Parent, args, Class) { | |
| var a = [null]; | |
| a.push.apply(a, args); | |
| var Constructor = Function.bind.apply(Parent, a); | |
| var instance = new Constructor(); | |
| if (Class) _setPrototypeOf(instance, Class.prototype); | |
| return instance; | |
| }; | |
| } | |
| return _construct.apply(null, arguments); | |
| } | |
| function _toConsumableArray(arr) { | |
| return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); | |
| } | |
| function _arrayWithoutHoles(arr) { | |
| if (Array.isArray(arr)) return _arrayLikeToArray(arr); | |
| } | |
| function _iterableToArray(iter) { | |
| if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter); | |
| } | |
| function _unsupportedIterableToArray(o, minLen) { | |
| if (!o) return; | |
| if (typeof o === "string") return _arrayLikeToArray(o, minLen); | |
| var n = Object.prototype.toString.call(o).slice(8, -1); | |
| if (n === "Object" && o.constructor) n = o.constructor.name; | |
| if (n === "Map" || n === "Set") return Array.from(o); | |
| if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); | |
| } | |
| function _arrayLikeToArray(arr, len) { | |
| if (len == null || len > arr.length) len = arr.length; | |
| for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; | |
| return arr2; | |
| } | |
| function _nonIterableSpread() { | |
| throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); | |
| } | |
| 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 _construct(Func, _toConsumableArray(args)); | |
| }; | |
| } | |
| var arrayForEach = unapply(Array.prototype.forEach); | |
| var arrayPop = unapply(Array.prototype.pop); | |
| var arrayPush = unapply(Array.prototype.push); | |
| var stringToLowerCase = unapply(String.prototype.toLowerCase); | |
| var stringToString = unapply(String.prototype.toString); | |
| var stringMatch = unapply(String.prototype.match); | |
| var stringReplace = unapply(String.prototype.replace); | |
| var stringIndexOf = unapply(String.prototype.indexOf); | |
| var stringTrim = unapply(String.prototype.trim); | |
| var regExpTest = unapply(RegExp.prototype.test); | |
| var typeErrorCreate = unconstruct(TypeError); | |
| function unapply(func) { | |
| return function (thisArg) { | |
| for (var _len = arguments.length, args = new 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 = new 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, transformCaseFunc) { | |
| var _transformCaseFunc; | |
| transformCaseFunc = (_transformCaseFunc = transformCaseFunc) !== null && _transformCaseFunc !== void 0 ? _transformCaseFunc : stringToLowerCase; | |
| 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 = transformCaseFunc(element); | |
| 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; | |
| for (property in object) { | |
| if (apply(hasOwnProperty, object, [property]) === true) { | |
| 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); | |
| } | |
| function fallbackValue(element) { | |
| console.warn('fallback value for', element); | |
| return null; | |
| } | |
| return fallbackValue; | |
| } | |
| var html$1 = 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$1 = 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', 'feImage', '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', '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$1 = 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 = 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', 'nonce', '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', 'slot']); | |
| var svg = 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', 'transform-origin', '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 = 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(/\{\{[\w\W]*|[\w\W]*\}\}/gm); // Specify template detection regex for SAFE_FOR_TEMPLATES mode | |
| var ERB_EXPR = seal(/<%[\w\W]*|[\w\W]*%>/gm); | |
| var TMPLIT_EXPR = seal(/\${[\w\W]*}/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+.\-:]|$))/i // eslint-disable-line no-useless-escape | |
| ); | |
| var IS_SCRIPT_OR_DATA = seal(/^(?:\w+script|data):/i); | |
| var ATTR_WHITESPACE = seal(/[\u0000-\u0020\u00A0\u1680\u180E\u2000-\u2029\u205F\u3000]/g // eslint-disable-line no-control-regex | |
| ); | |
| var DOCTYPE_NAME = seal(/^html$/i); | |
| var CUSTOM_ELEMENT = seal(/^[a-z][.\w]*(-[.\w]+)+$/i); | |
| 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) !== '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) { | |
| return html; | |
| }, | |
| createScriptURL: function createScriptURL(scriptUrl) { | |
| return scriptUrl; | |
| } | |
| }); | |
| } 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 = '2.5.5'; | |
| /** | |
| * 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$NamedNodeMap === void 0 ? window.NamedNodeMap || window.MozNamedAttrMap : _window$NamedNodeMap, | |
| HTMLFormElement = window.HTMLFormElement, | |
| 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 ? trustedTypesPolicy.createHTML('') : ''; | |
| var _document = document, | |
| implementation = _document.implementation, | |
| createNodeIterator = _document.createNodeIterator, | |
| createDocumentFragment = _document.createDocumentFragment, | |
| getElementsByTagName = _document.getElementsByTagName; | |
| 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 = typeof getParentNode === 'function' && implementation && implementation.createHTMLDocument !== undefined && documentMode !== 9; | |
| var MUSTACHE_EXPR$1 = MUSTACHE_EXPR, | |
| ERB_EXPR$1 = ERB_EXPR, | |
| TMPLIT_EXPR$1 = TMPLIT_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, | |
| CUSTOM_ELEMENT$1 = CUSTOM_ELEMENT; | |
| 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(html$1), _toConsumableArray(svg$1), _toConsumableArray(svgFilters), _toConsumableArray(mathMl$1), _toConsumableArray(text))); | |
| /* Allowed attribute names */ | |
| var ALLOWED_ATTR = null; | |
| var DEFAULT_ALLOWED_ATTR = addToSet({}, [].concat(_toConsumableArray(html), _toConsumableArray(svg), _toConsumableArray(mathMl), _toConsumableArray(xml))); | |
| /* | |
| * Configure how DOMPUrify should handle custom elements and their attributes as well as customized built-in elements. | |
| * @property {RegExp|Function|null} tagNameCheck one of [null, regexPattern, predicate]. Default: `null` (disallow any custom elements) | |
| * @property {RegExp|Function|null} attributeNameCheck one of [null, regexPattern, predicate]. Default: `null` (disallow any attributes not on the allow list) | |
| * @property {boolean} allowCustomizedBuiltInElements allow custom elements derived from built-ins if they pass CUSTOM_ELEMENT_HANDLING.tagNameCheck. Default: `false`. | |
| */ | |
| var CUSTOM_ELEMENT_HANDLING = Object.seal(Object.create(null, { | |
| tagNameCheck: { | |
| writable: true, | |
| configurable: false, | |
| enumerable: true, | |
| value: null | |
| }, | |
| attributeNameCheck: { | |
| writable: true, | |
| configurable: false, | |
| enumerable: true, | |
| value: null | |
| }, | |
| allowCustomizedBuiltInElements: { | |
| writable: true, | |
| configurable: false, | |
| enumerable: true, | |
| value: false | |
| } | |
| })); | |
| /* 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; | |
| /* Decide if self-closing tags in attributes are allowed. | |
| * Usually removed due to a mXSS issue in jQuery 3.0 */ | |
| var ALLOW_SELF_CLOSE_IN_ATTR = true; | |
| /* Output should be safe for common template engines. | |
| * This means, DOMPurify removes data attributes, mustaches and ERB | |
| */ | |
| var SAFE_FOR_TEMPLATES = false; | |
| /* Output should be safe even for XML used within HTML and alike. | |
| * This means, DOMPurify removes comments when containing risky content. | |
| */ | |
| var SAFE_FOR_XML = true; | |
| /* 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; | |
| /* 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? | |
| * This sanitizes markups named with colliding, clobberable built-in DOM APIs. | |
| */ | |
| var SANITIZE_DOM = true; | |
| /* Achieve full DOM Clobbering protection by isolating the namespace of named | |
| * properties and JS variables, mitigating attacks that abuse the HTML/DOM spec rules. | |
| * | |
| * HTML/DOM spec rules that enable DOM Clobbering: | |
| * - Named Access on Window (§7.3.3) | |
| * - DOM Tree Accessors (§3.1.5) | |
| * - Form Element Parent-Child Relations (§4.10.3) | |
| * - Iframe srcdoc / Nested WindowProxies (§4.8.5) | |
| * - HTMLCollection (§4.2.10.2) | |
| * | |
| * Namespace isolation is implemented by prefixing `id` and `name` attributes | |
| * with a constant string, i.e., `user-content-` | |
| */ | |
| var SANITIZE_NAMED_PROPS = false; | |
| var SANITIZE_NAMED_PROPS_PREFIX = 'user-content-'; | |
| /* 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 = null; | |
| var DEFAULT_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', 'role', 'summary', 'title', 'value', 'style', 'xmlns']); | |
| 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'; | |
| /* Document namespace */ | |
| var NAMESPACE = HTML_NAMESPACE; | |
| var IS_EMPTY_INPUT = false; | |
| /* Allowed XHTML+XML namespaces */ | |
| var ALLOWED_NAMESPACES = null; | |
| var DEFAULT_ALLOWED_NAMESPACES = addToSet({}, [MATHML_NAMESPACE, SVG_NAMESPACE, HTML_NAMESPACE], stringToString); | |
| /* Parsing of strict XHTML documents */ | |
| var PARSER_MEDIA_TYPE; | |
| var SUPPORTED_PARSER_MEDIA_TYPES = ['application/xhtml+xml', 'text/html']; | |
| var DEFAULT_PARSER_MEDIA_TYPE = 'text/html'; | |
| var transformCaseFunc; | |
| /* 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'); | |
| var isRegexOrFunction = function isRegexOrFunction(testValue) { | |
| return testValue instanceof RegExp || testValue instanceof Function; | |
| }; | |
| /** | |
| * _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) !== 'object') { | |
| cfg = {}; | |
| } | |
| /* Shield configuration object from prototype pollution */ | |
| cfg = clone(cfg); | |
| PARSER_MEDIA_TYPE = | |
| // eslint-disable-next-line unicorn/prefer-includes | |
| SUPPORTED_PARSER_MEDIA_TYPES.indexOf(cfg.PARSER_MEDIA_TYPE) === -1 ? PARSER_MEDIA_TYPE = DEFAULT_PARSER_MEDIA_TYPE : PARSER_MEDIA_TYPE = cfg.PARSER_MEDIA_TYPE; | |
| // HTML tags and attributes are not case-sensitive, converting to lowercase. Keeping XHTML as is. | |
| transformCaseFunc = PARSER_MEDIA_TYPE === 'application/xhtml+xml' ? stringToString : stringToLowerCase; | |
| /* Set configuration parameters */ | |
| ALLOWED_TAGS = 'ALLOWED_TAGS' in cfg ? addToSet({}, cfg.ALLOWED_TAGS, transformCaseFunc) : DEFAULT_ALLOWED_TAGS; | |
| ALLOWED_ATTR = 'ALLOWED_ATTR' in cfg ? addToSet({}, cfg.ALLOWED_ATTR, transformCaseFunc) : DEFAULT_ALLOWED_ATTR; | |
| ALLOWED_NAMESPACES = 'ALLOWED_NAMESPACES' in cfg ? addToSet({}, cfg.ALLOWED_NAMESPACES, stringToString) : DEFAULT_ALLOWED_NAMESPACES; | |
| URI_SAFE_ATTRIBUTES = 'ADD_URI_SAFE_ATTR' in cfg ? addToSet(clone(DEFAULT_URI_SAFE_ATTRIBUTES), | |
| // eslint-disable-line indent | |
| cfg.ADD_URI_SAFE_ATTR, | |
| // eslint-disable-line indent | |
| transformCaseFunc // eslint-disable-line indent | |
| ) // eslint-disable-line indent | |
| : DEFAULT_URI_SAFE_ATTRIBUTES; | |
| DATA_URI_TAGS = 'ADD_DATA_URI_TAGS' in cfg ? addToSet(clone(DEFAULT_DATA_URI_TAGS), | |
| // eslint-disable-line indent | |
| cfg.ADD_DATA_URI_TAGS, | |
| // eslint-disable-line indent | |
| transformCaseFunc // eslint-disable-line indent | |
| ) // eslint-disable-line indent | |
| : DEFAULT_DATA_URI_TAGS; | |
| FORBID_CONTENTS = 'FORBID_CONTENTS' in cfg ? addToSet({}, cfg.FORBID_CONTENTS, transformCaseFunc) : DEFAULT_FORBID_CONTENTS; | |
| FORBID_TAGS = 'FORBID_TAGS' in cfg ? addToSet({}, cfg.FORBID_TAGS, transformCaseFunc) : {}; | |
| FORBID_ATTR = 'FORBID_ATTR' in cfg ? addToSet({}, cfg.FORBID_ATTR, transformCaseFunc) : {}; | |
| 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 | |
| ALLOW_SELF_CLOSE_IN_ATTR = cfg.ALLOW_SELF_CLOSE_IN_ATTR !== false; // Default true | |
| SAFE_FOR_TEMPLATES = cfg.SAFE_FOR_TEMPLATES || false; // Default false | |
| SAFE_FOR_XML = cfg.SAFE_FOR_XML !== false; // Default true | |
| 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_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 | |
| SANITIZE_NAMED_PROPS = cfg.SANITIZE_NAMED_PROPS || false; // Default false | |
| 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; | |
| NAMESPACE = cfg.NAMESPACE || HTML_NAMESPACE; | |
| CUSTOM_ELEMENT_HANDLING = cfg.CUSTOM_ELEMENT_HANDLING || {}; | |
| if (cfg.CUSTOM_ELEMENT_HANDLING && isRegexOrFunction(cfg.CUSTOM_ELEMENT_HANDLING.tagNameCheck)) { | |
| CUSTOM_ELEMENT_HANDLING.tagNameCheck = cfg.CUSTOM_ELEMENT_HANDLING.tagNameCheck; | |
| } | |
| if (cfg.CUSTOM_ELEMENT_HANDLING && isRegexOrFunction(cfg.CUSTOM_ELEMENT_HANDLING.attributeNameCheck)) { | |
| CUSTOM_ELEMENT_HANDLING.attributeNameCheck = cfg.CUSTOM_ELEMENT_HANDLING.attributeNameCheck; | |
| } | |
| if (cfg.CUSTOM_ELEMENT_HANDLING && typeof cfg.CUSTOM_ELEMENT_HANDLING.allowCustomizedBuiltInElements === 'boolean') { | |
| CUSTOM_ELEMENT_HANDLING.allowCustomizedBuiltInElements = cfg.CUSTOM_ELEMENT_HANDLING.allowCustomizedBuiltInElements; | |
| } | |
| if (SAFE_FOR_TEMPLATES) { | |
| ALLOW_DATA_ATTR = false; | |
| } | |
| if (RETURN_DOM_FRAGMENT) { | |
| RETURN_DOM = true; | |
| } | |
| /* Parse profile info */ | |
| if (USE_PROFILES) { | |
| ALLOWED_TAGS = addToSet({}, _toConsumableArray(text)); | |
| ALLOWED_ATTR = []; | |
| if (USE_PROFILES.html === true) { | |
| addToSet(ALLOWED_TAGS, html$1); | |
| addToSet(ALLOWED_ATTR, html); | |
| } | |
| if (USE_PROFILES.svg === true) { | |
| addToSet(ALLOWED_TAGS, svg$1); | |
| addToSet(ALLOWED_ATTR, svg); | |
| addToSet(ALLOWED_ATTR, xml); | |
| } | |
| if (USE_PROFILES.svgFilters === true) { | |
| addToSet(ALLOWED_TAGS, svgFilters); | |
| addToSet(ALLOWED_ATTR, svg); | |
| addToSet(ALLOWED_ATTR, xml); | |
| } | |
| if (USE_PROFILES.mathMl === true) { | |
| addToSet(ALLOWED_TAGS, mathMl$1); | |
| addToSet(ALLOWED_ATTR, mathMl); | |
| 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, transformCaseFunc); | |
| } | |
| if (cfg.ADD_ATTR) { | |
| if (ALLOWED_ATTR === DEFAULT_ALLOWED_ATTR) { | |
| ALLOWED_ATTR = clone(ALLOWED_ATTR); | |
| } | |
| addToSet(ALLOWED_ATTR, cfg.ADD_ATTR, transformCaseFunc); | |
| } | |
| if (cfg.ADD_URI_SAFE_ATTR) { | |
| addToSet(URI_SAFE_ATTRIBUTES, cfg.ADD_URI_SAFE_ATTR, transformCaseFunc); | |
| } | |
| if (cfg.FORBID_CONTENTS) { | |
| if (FORBID_CONTENTS === DEFAULT_FORBID_CONTENTS) { | |
| FORBID_CONTENTS = clone(FORBID_CONTENTS); | |
| } | |
| addToSet(FORBID_CONTENTS, cfg.FORBID_CONTENTS, transformCaseFunc); | |
| } | |
| /* 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', 'annotation-xml']); | |
| // Certain elements are allowed in both SVG and HTML | |
| // namespace. We need to specify them explicitly | |
| // so that they don't get erroneously deleted from | |
| // HTML namespace. | |
| var COMMON_SVG_AND_HTML_ELEMENTS = addToSet({}, ['title', 'style', 'font', 'a', 'script']); | |
| /* Keep track of all possible SVG and MathML tags | |
| * so that we can perform the namespace checks | |
| * correctly. */ | |
| var ALL_SVG_TAGS = addToSet({}, svg$1); | |
| addToSet(ALL_SVG_TAGS, svgFilters); | |
| addToSet(ALL_SVG_TAGS, svgDisallowed); | |
| var ALL_MATHML_TAGS = addToSet({}, mathMl$1); | |
| addToSet(ALL_MATHML_TAGS, mathMlDisallowed); | |
| /** | |
| * | |
| * | |
| * @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: NAMESPACE, | |
| tagName: 'template' | |
| }; | |
| } | |
| var tagName = stringToLowerCase(element.tagName); | |
| var parentTagName = stringToLowerCase(parent.tagName); | |
| if (!ALLOWED_NAMESPACES[element.namespaceURI]) { | |
| return false; | |
| } | |
| 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; | |
| } | |
| // We disallow tags that are specific for MathML | |
| // or SVG and should never appear in HTML namespace | |
| return !ALL_MATHML_TAGS[tagName] && (COMMON_SVG_AND_HTML_ELEMENTS[tagName] || !ALL_SVG_TAGS[tagName]); | |
| } | |
| // For XHTML and XML documents that support custom namespaces | |
| if (PARSER_MEDIA_TYPE === 'application/xhtml+xml' && ALLOWED_NAMESPACES[element.namespaceURI]) { | |
| return true; | |
| } | |
| // The code should never reach this place (this means | |
| // that the element somehow got namespace that is not | |
| // HTML, SVG, MathML or allowed via ALLOWED_NAMESPACES). | |
| // Return false just in case. | |
| return false; | |
| }; | |
| /** | |
| * _forceRemove | |
| * | |
| * @param {Node} node a DOM node | |
| */ | |
| var _forceRemove = function _forceRemove(node) { | |
| arrayPush(DOMPurify.removed, { | |
| element: node | |
| }); | |
| try { | |
| // eslint-disable-next-line unicorn/prefer-dom-node-remove | |
| 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 { | |
| arrayPush(DOMPurify.removed, { | |
| attribute: node.getAttributeNode(name), | |
| from: node | |
| }); | |
| } catch (_) { | |
| arrayPush(DOMPurify.removed, { | |
| attribute: null, | |
| from: node | |
| }); | |
| } | |
| node.removeAttribute(name); | |
| // We void attribute values for unremovable "is"" attributes | |
| if (name === 'is' && !ALLOWED_ATTR[name]) { | |
| if (RETURN_DOM || RETURN_DOM_FRAGMENT) { | |
| try { | |
| _forceRemove(node); | |
| } catch (_) {} | |
| } else { | |
| try { | |
| node.setAttribute(name, ''); | |
| } catch (_) {} | |
| } | |
| } | |
| }; | |
| /** | |
| * _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; | |
| var leadingWhitespace; | |
| if (FORCE_BODY) { | |
| dirty = '<remove></remove>' + dirty; | |
| } else { | |
| /* If FORCE_BODY isn't used, leading whitespace needs to be preserved manually */ | |
| var matches = stringMatch(dirty, /^[\r\n\t ]+/); | |
| leadingWhitespace = matches && matches[0]; | |
| } | |
| if (PARSER_MEDIA_TYPE === 'application/xhtml+xml' && NAMESPACE === HTML_NAMESPACE) { | |
| // Root of XHTML doc must contain xmlns declaration (see https://www.w3.org/TR/xhtml1/normative.html#strict) | |
| dirty = '<html xmlns="http://www.w3.org/1999/xhtml"><head></head><body>' + dirty + '</body></html>'; | |
| } | |
| var dirtyPayload = trustedTypesPolicy ? trustedTypesPolicy.createHTML(dirty) : dirty; | |
| /* | |
| * Use the DOMParser API by default, fallback later if needs be | |
| * DOMParser not work for svg when has multiple root element. | |
| */ | |
| if (NAMESPACE === HTML_NAMESPACE) { | |
| try { | |
| doc = new DOMParser().parseFromString(dirtyPayload, PARSER_MEDIA_TYPE); | |
| } catch (_) {} | |
| } | |
| /* Use createHTMLDocument in case DOMParser is not available */ | |
| if (!doc || !doc.documentElement) { | |
| doc = implementation.createDocument(NAMESPACE, 'template', null); | |
| try { | |
| doc.documentElement.innerHTML = IS_EMPTY_INPUT ? emptyHTML : dirtyPayload; | |
| } catch (_) { | |
| // Syntax error if dirtyPayload is invalid xml | |
| } | |
| } | |
| var body = doc.body || doc.documentElement; | |
| if (dirty && leadingWhitespace) { | |
| body.insertBefore(document.createTextNode(leadingWhitespace), body.childNodes[0] || null); | |
| } | |
| /* Work on whole document or just its body */ | |
| if (NAMESPACE === HTML_NAMESPACE) { | |
| return getElementsByTagName.call(doc, WHOLE_DOCUMENT ? 'html' : 'body')[0]; | |
| } | |
| return WHOLE_DOCUMENT ? doc.documentElement : body; | |
| }; | |
| /** | |
| * _createIterator | |
| * | |
| * @param {Document} root document/fragment to create iterator for | |
| * @return {Iterator} iterator instance | |
| */ | |
| var _createIterator = function _createIterator(root) { | |
| return createNodeIterator.call(root.ownerDocument || root, root, | |
| // eslint-disable-next-line no-bitwise | |
| NodeFilter.SHOW_ELEMENT | NodeFilter.SHOW_COMMENT | NodeFilter.SHOW_TEXT | NodeFilter.SHOW_PROCESSING_INSTRUCTION | NodeFilter.SHOW_CDATA_SECTION, null, false); | |
| }; | |
| /** | |
| * _isClobbered | |
| * | |
| * @param {Node} elm element to check for clobbering attacks | |
| * @return {Boolean} true if clobbered, false if safe | |
| */ | |
| var _isClobbered = function _isClobbered(elm) { | |
| return elm instanceof HTMLFormElement && (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' || typeof elm.hasChildNodes !== 'function'); | |
| }; | |
| /** | |
| * _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) === 'object' ? object instanceof Node : object && _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; | |
| } | |
| arrayForEach(hooks[entryPoint], 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; | |
| /* 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 (regExpTest(/[\u0080-\uFFFF]/, currentNode.nodeName)) { | |
| _forceRemove(currentNode); | |
| return true; | |
| } | |
| /* Now let's check the element's type and name */ | |
| var tagName = transformCaseFunc(currentNode.nodeName); | |
| /* Execute a hook if present */ | |
| _executeHook('uponSanitizeElement', currentNode, { | |
| tagName: tagName, | |
| allowedTags: ALLOWED_TAGS | |
| }); | |
| /* Detect mXSS attempts abusing namespace confusion */ | |
| if (currentNode.hasChildNodes() && !_isNode(currentNode.firstElementChild) && (!_isNode(currentNode.content) || !_isNode(currentNode.content.firstElementChild)) && regExpTest(/<[/\w]/g, currentNode.innerHTML) && regExpTest(/<[/\w]/g, currentNode.textContent)) { | |
| _forceRemove(currentNode); | |
| return true; | |
| } | |
| /* Mitigate a problem with templates inside select */ | |
| if (tagName === 'select' && regExpTest(/<template/i, currentNode.innerHTML)) { | |
| _forceRemove(currentNode); | |
| return true; | |
| } | |
| /* Remove any ocurrence of processing instructions */ | |
| if (currentNode.nodeType === 7) { | |
| _forceRemove(currentNode); | |
| return true; | |
| } | |
| /* Remove any kind of possibly harmful comments */ | |
| if (SAFE_FOR_XML && currentNode.nodeType === 8 && regExpTest(/<[/\w]/g, currentNode.data)) { | |
| _forceRemove(currentNode); | |
| return true; | |
| } | |
| /* Remove element if anything forbids its presence */ | |
| if (!ALLOWED_TAGS[tagName] || FORBID_TAGS[tagName]) { | |
| /* Check if we have a custom element to handle */ | |
| if (!FORBID_TAGS[tagName] && _basicCustomElementTest(tagName)) { | |
| if (CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof RegExp && regExpTest(CUSTOM_ELEMENT_HANDLING.tagNameCheck, tagName)) return false; | |
| if (CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof Function && CUSTOM_ELEMENT_HANDLING.tagNameCheck(tagName)) return false; | |
| } | |
| /* Keep content except for bad-listed elements */ | |
| if (KEEP_CONTENT && !FORBID_CONTENTS[tagName]) { | |
| var parentNode = getParentNode(currentNode) || currentNode.parentNode; | |
| var childNodes = getChildNodes(currentNode) || currentNode.childNodes; | |
| if (childNodes && parentNode) { | |
| var childCount = childNodes.length; | |
| for (var i = childCount - 1; i >= 0; --i) { | |
| var childClone = cloneNode(childNodes[i], true); | |
| childClone.__removalCount = (currentNode.__removalCount || 0) + 1; | |
| parentNode.insertBefore(childClone, getNextSibling(currentNode)); | |
| } | |
| } | |
| } | |
| _forceRemove(currentNode); | |
| return true; | |
| } | |
| /* Check whether element has a valid namespace */ | |
| if (currentNode instanceof Element && !_checkValidNamespace(currentNode)) { | |
| _forceRemove(currentNode); | |
| return true; | |
| } | |
| /* Make sure that older browsers don't get fallback-tag mXSS */ | |
| if ((tagName === 'noscript' || tagName === 'noembed' || tagName === 'noframes') && regExpTest(/<\/no(script|embed|frames)/i, 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 = stringReplace(content, MUSTACHE_EXPR$1, ' '); | |
| content = stringReplace(content, ERB_EXPR$1, ' '); | |
| content = stringReplace(content, TMPLIT_EXPR$1, ' '); | |
| if (currentNode.textContent !== content) { | |
| arrayPush(DOMPurify.removed, { | |
| 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 && !FORBID_ATTR[lcName] && regExpTest(DATA_ATTR$1, lcName)) ; else if (ALLOW_ARIA_ATTR && regExpTest(ARIA_ATTR$1, lcName)) ; else if (!ALLOWED_ATTR[lcName] || FORBID_ATTR[lcName]) { | |
| if ( | |
| // First condition does a very basic check if a) it's basically a valid custom element tagname AND | |
| // b) if the tagName passes whatever the user has configured for CUSTOM_ELEMENT_HANDLING.tagNameCheck | |
| // and c) if the attribute name passes whatever the user has configured for CUSTOM_ELEMENT_HANDLING.attributeNameCheck | |
| _basicCustomElementTest(lcTag) && (CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof RegExp && regExpTest(CUSTOM_ELEMENT_HANDLING.tagNameCheck, lcTag) || CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof Function && CUSTOM_ELEMENT_HANDLING.tagNameCheck(lcTag)) && (CUSTOM_ELEMENT_HANDLING.attributeNameCheck instanceof RegExp && regExpTest(CUSTOM_ELEMENT_HANDLING.attributeNameCheck, lcName) || CUSTOM_ELEMENT_HANDLING.attributeNameCheck instanceof Function && CUSTOM_ELEMENT_HANDLING.attributeNameCheck(lcName)) || | |
| // Alternative, second condition checks if it's an `is`-attribute, AND | |
| // the value passes whatever the user has configured for CUSTOM_ELEMENT_HANDLING.tagNameCheck | |
| lcName === 'is' && CUSTOM_ELEMENT_HANDLING.allowCustomizedBuiltInElements && (CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof RegExp && regExpTest(CUSTOM_ELEMENT_HANDLING.tagNameCheck, value) || CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof Function && CUSTOM_ELEMENT_HANDLING.tagNameCheck(value))) ; else { | |
| return false; | |
| } | |
| /* Check value is safe. First, is attr inert? If so, is safe */ | |
| } else if (URI_SAFE_ATTRIBUTES[lcName]) ; else if (regExpTest(IS_ALLOWED_URI$1, stringReplace(value, ATTR_WHITESPACE$1, ''))) ; else if ((lcName === 'src' || lcName === 'xlink:href' || lcName === 'href') && lcTag !== 'script' && stringIndexOf(value, 'data:') === 0 && DATA_URI_TAGS[lcTag]) ; else if (ALLOW_UNKNOWN_PROTOCOLS && !regExpTest(IS_SCRIPT_OR_DATA$1, stringReplace(value, ATTR_WHITESPACE$1, ''))) ; else if (value) { | |
| return false; | |
| } else ; | |
| return true; | |
| }; | |
| /** | |
| * _basicCustomElementCheck | |
| * checks if at least one dash is included in tagName, and it's not the first char | |
| * for more sophisticated checking see https://github.com/sindresorhus/validate-element-name | |
| * @param {string} tagName name of the tag of the node to sanitize | |
| */ | |
| var _basicCustomElementTest = function _basicCustomElementTest(tagName) { | |
| return tagName !== 'annotation-xml' && stringMatch(tagName, CUSTOM_ELEMENT$1); | |
| }; | |
| /** | |
| * _sanitizeAttributes | |
| * | |
| * @protect attributes | |
| * @protect nodeName | |
| * @protect removeAttribute | |
| * @protect setAttribute | |
| * | |
| * @param {Node} currentNode to sanitize | |
| */ | |
| var _sanitizeAttributes = function _sanitizeAttributes(currentNode) { | |
| var attr; | |
| var value; | |
| var lcName; | |
| var l; | |
| /* 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 = name === 'value' ? attr.value : stringTrim(attr.value); | |
| lcName = transformCaseFunc(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 (!ALLOW_SELF_CLOSE_IN_ATTR && regExpTest(/\/>/i, value)) { | |
| _removeAttribute(name, currentNode); | |
| continue; | |
| } | |
| /* Work around a security issue with comments inside attributes */ | |
| if (SAFE_FOR_XML && regExpTest(/((--!?|])>)|<\/(style|title)/i, value)) { | |
| _removeAttribute(name, currentNode); | |
| continue; | |
| } | |
| /* Sanitize attribute content to be template-safe */ | |
| if (SAFE_FOR_TEMPLATES) { | |
| value = stringReplace(value, MUSTACHE_EXPR$1, ' '); | |
| value = stringReplace(value, ERB_EXPR$1, ' '); | |
| value = stringReplace(value, TMPLIT_EXPR$1, ' '); | |
| } | |
| /* Is `value` valid for this attribute? */ | |
| var lcTag = transformCaseFunc(currentNode.nodeName); | |
| if (!_isValidAttribute(lcTag, lcName, value)) { | |
| continue; | |
| } | |
| /* Full DOM Clobbering protection via namespace isolation, | |
| * Prefix id and name attributes with `user-content-` | |
| */ | |
| if (SANITIZE_NAMED_PROPS && (lcName === 'id' || lcName === 'name')) { | |
| // Remove the attribute with this value | |
| _removeAttribute(name, currentNode); | |
| // Prefix the value and later re-create the attribute with the sanitized value | |
| value = SANITIZE_NAMED_PROPS_PREFIX + value; | |
| } | |
| /* Handle attributes that require Trusted Types */ | |
| if (trustedTypesPolicy && _typeof(trustedTypes) === 'object' && typeof trustedTypes.getAttributeType === 'function') { | |
| if (namespaceURI) ; else { | |
| switch (trustedTypes.getAttributeType(lcTag, lcName)) { | |
| case 'TrustedHTML': | |
| { | |
| value = trustedTypesPolicy.createHTML(value); | |
| break; | |
| } | |
| case 'TrustedScriptURL': | |
| { | |
| value = trustedTypesPolicy.createScriptURL(value); | |
| break; | |
| } | |
| } | |
| } | |
| } | |
| /* 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); | |
| } | |
| if (_isClobbered(currentNode)) { | |
| _forceRemove(currentNode); | |
| } else { | |
| arrayPop(DOMPurify.removed); | |
| } | |
| } 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; | |
| 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) { | |
| var cfg = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {}; | |
| var body; | |
| var importedNode; | |
| var currentNode; | |
| var oldNode; | |
| var returnNode; | |
| /* 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 */ | |
| IS_EMPTY_INPUT = !dirty; | |
| if (IS_EMPTY_INPUT) { | |
| dirty = '<!-->'; | |
| } | |
| /* Stringify, in case dirty is an object */ | |
| if (typeof dirty !== 'string' && !_isNode(dirty)) { | |
| if (typeof dirty.toString === 'function') { | |
| dirty = dirty.toString(); | |
| if (typeof dirty !== 'string') { | |
| throw typeErrorCreate('dirty is not a string, aborting'); | |
| } | |
| } else { | |
| throw typeErrorCreate('toString is not a function'); | |
| } | |
| } | |
| /* 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) { | |
| /* Do some early pre-sanitization to avoid unsafe root nodes */ | |
| if (dirty.nodeName) { | |
| var tagName = transformCaseFunc(dirty.nodeName); | |
| if (!ALLOWED_TAGS[tagName] || FORBID_TAGS[tagName]) { | |
| throw typeErrorCreate('root node is forbidden and cannot be sanitized 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-dom-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 : RETURN_TRUSTED_TYPE ? 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); | |
| while (body.firstChild) { | |
| // eslint-disable-next-line unicorn/prefer-dom-node-append | |
| returnNode.appendChild(body.firstChild); | |
| } | |
| } else { | |
| returnNode = body; | |
| } | |
| if (ALLOWED_ATTR.shadowroot || ALLOWED_ATTR.shadowrootmod) { | |
| /* | |
| 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); | |
| } | |
| return returnNode; | |
| } | |
| var serializedHTML = WHOLE_DOCUMENT ? body.outerHTML : body.innerHTML; | |
| /* Serialize doctype if allowed */ | |
| if (WHOLE_DOCUMENT && ALLOWED_TAGS['!doctype'] && body.ownerDocument && body.ownerDocument.doctype && body.ownerDocument.doctype.name && regExpTest(DOCTYPE_NAME, body.ownerDocument.doctype.name)) { | |
| serializedHTML = '<!DOCTYPE ' + body.ownerDocument.doctype.name + '>\n' + serializedHTML; | |
| } | |
| /* Sanitize final string template-safe */ | |
| if (SAFE_FOR_TEMPLATES) { | |
| serializedHTML = stringReplace(serializedHTML, MUSTACHE_EXPR$1, ' '); | |
| serializedHTML = stringReplace(serializedHTML, ERB_EXPR$1, ' '); | |
| serializedHTML = stringReplace(serializedHTML, TMPLIT_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 = transformCaseFunc(tag); | |
| var lcName = transformCaseFunc(attr); | |
| 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] || []; | |
| arrayPush(hooks[entryPoint], 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 | |
| * @return {Function} removed(popped) hook | |
| */ | |
| DOMPurify.removeHook = function (entryPoint) { | |
| if (hooks[entryPoint]) { | |
| return arrayPop(hooks[entryPoint]); | |
| } | |
| }; | |
| /** | |
| * 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(); | |
| return purify; | |
| })); | |
| //# sourceMappingURL=purify.js.map | |