/******/ (() => { // webpackBootstrap /******/ var __webpack_modules__ = ({ /***/ 5246: /***/ (function(module, exports, __webpack_require__) { var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;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 (global, factory) { ( false ? 0 : _typeof(exports)) === 'object' && "object" !== 'undefined' ? factory(exports, __webpack_require__(4038)) : true ? !(__WEBPACK_AMD_DEFINE_ARRAY__ = [exports, __webpack_require__(4038)], __WEBPACK_AMD_DEFINE_FACTORY__ = (factory), __WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ? 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' + 'localforage v1.4+ is required!')); } getSerializerPromise.result = localForageInstance.getSerializer(); return getSerializerPromise.result; } function executeCallback(promise, callback) { if (callback) { promise.then(function (result) { callback(null, result); }, function (error) { callback(error); }); } return promise; } function getItemKeyValue(key, callback) { var localforageInstance = this; var promise = localforageInstance.getItem(key).then(function (value) { return { key: key, value: value }; }); executeCallback(promise, callback); return promise; } function getItemsGeneric(keys /*, callback*/) { var localforageInstance = this; var promise = new Promise(function (resolve, reject) { var itemPromises = []; for (var i = 0, len = keys.length; i < len; i++) { itemPromises.push(getItemKeyValue.call(localforageInstance, keys[i])); } Promise.all(itemPromises).then(function (keyValuePairs) { var result = {}; for (var i = 0, len = keyValuePairs.length; i < len; i++) { var keyValuePair = keyValuePairs[i]; result[keyValuePair.key] = keyValuePair.value; } resolve(result); }).catch(reject); }); return promise; } function getAllItemsUsingIterate() { var localforageInstance = this; var accumulator = {}; return localforageInstance.iterate(function (value, key /*, iterationNumber*/) { accumulator[key] = value; }).then(function () { return accumulator; }); } function getIDBKeyRange() { /* global IDBKeyRange, webkitIDBKeyRange, mozIDBKeyRange */ if (typeof IDBKeyRange !== 'undefined') { return IDBKeyRange; } if (typeof webkitIDBKeyRange !== 'undefined') { return webkitIDBKeyRange; } if (typeof mozIDBKeyRange !== 'undefined') { return mozIDBKeyRange; } } var idbKeyRange = getIDBKeyRange(); function getItemsIndexedDB(keys /*, callback*/) { keys = keys.slice(); var localforageInstance = this; function comparer(a, b) { return a < b ? -1 : a > b ? 1 : 0; } var promise = new Promise(function (resolve, reject) { localforageInstance.ready().then(function () { // Thanks https://hacks.mozilla.org/2014/06/breaking-the-borders-of-indexeddb/ var dbInfo = localforageInstance._dbInfo; var store = dbInfo.db.transaction(dbInfo.storeName, 'readonly').objectStore(dbInfo.storeName); var set = keys.sort(comparer); var keyRangeValue = idbKeyRange.bound(keys[0], keys[keys.length - 1], false, false); var req; if ('getAll' in store) { req = store.getAll(keyRangeValue); req.onsuccess = function () { var value = req.result; if (value === undefined) { value = null; } resolve(value); }; } else { req = store.openCursor(keyRangeValue); var result = {}; var i = 0; req.onsuccess = function () /*event*/{ var cursor = req.result; // event.target.result; if (!cursor) { resolve(result); return; } var key = cursor.key; while (key > set[i]) { i++; // The cursor has passed beyond this key. Check next. if (i === set.length) { // There is no next. Stop searching. resolve(result); return; } } if (key === set[i]) { // The current cursor value should be included and we should continue // a single step in case next item has the same key or possibly our // next key in set. var value = cursor.value; if (value === undefined) { value = null; } result[key] = value; // onfound(cursor.value); cursor.continue(); } else { // cursor.key not yet at set[i]. Forward cursor to the next key to hunt for. cursor.continue(set[i]); } }; } req.onerror = function () /*event*/{ reject(req.error); }; }).catch(reject); }); return promise; } function getItemsWebsql(keys /*, callback*/) { var localforageInstance = this; var promise = new Promise(function (resolve, reject) { localforageInstance.ready().then(function () { return getSerializerPromise(localforageInstance); }).then(function (serializer) { var dbInfo = localforageInstance._dbInfo; dbInfo.db.transaction(function (t) { var queryParts = new Array(keys.length); for (var i = 0, len = keys.length; i < len; i++) { queryParts[i] = '?'; } t.executeSql('SELECT * FROM ' + dbInfo.storeName + ' WHERE (key IN (' + queryParts.join(',') + '))', keys, function (t, results) { var result = {}; var rows = results.rows; for (var i = 0, len = rows.length; i < len; i++) { var item = rows.item(i); var value = item.value; // Check to see if this is serialized content we need to // unpack. if (value) { value = serializer.deserialize(value); } result[item.key] = value; } resolve(result); }, function (t, error) { reject(error); }); }); }).catch(reject); }); return promise; } function localforageGetItems(keys, callback) { var localforageInstance = this; var promise; if (!arguments.length || keys === null) { promise = getAllItemsUsingIterate.apply(localforageInstance); } else { var currentDriver = localforageInstance.driver(); if (currentDriver === localforageInstance.INDEXEDDB) { promise = getItemsIndexedDB.apply(localforageInstance, arguments); } else if (currentDriver === localforageInstance.WEBSQL) { promise = getItemsWebsql.apply(localforageInstance, arguments); } else { promise = getItemsGeneric.apply(localforageInstance, arguments); } } executeCallback(promise, callback); return promise; } function extendPrototype(localforage$$1) { var localforagePrototype = Object.getPrototypeOf(localforage$$1); if (localforagePrototype) { localforagePrototype.getItems = localforageGetItems; localforagePrototype.getItems.indexedDB = function () { return getItemsIndexedDB.apply(this, arguments); }; localforagePrototype.getItems.websql = function () { return getItemsWebsql.apply(this, arguments); }; localforagePrototype.getItems.generic = function () { return getItemsGeneric.apply(this, arguments); }; } } var extendPrototypeResult = extendPrototype(localforage); exports.localforageGetItems = localforageGetItems; exports.extendPrototype = extendPrototype; exports.extendPrototypeResult = extendPrototypeResult; exports.getItemsGeneric = getItemsGeneric; Object.defineProperty(exports, '__esModule', { value: true }); }); /***/ }), /***/ 3208: /***/ ((module, __unused_webpack_exports, __webpack_require__) => { "use strict"; var atob = __webpack_require__(2740); var btoa = __webpack_require__(1485); module.exports = { atob: atob, btoa: btoa }; /***/ }), /***/ 2740: /***/ ((module) => { "use strict"; /** * Implementation of atob() according to the HTML and Infra specs, except that * instead of throwing INVALID_CHARACTER_ERR we return null. */ function atob(data) { if (arguments.length === 0) { throw new TypeError("1 argument required, but only 0 present."); } // Web IDL requires DOMStrings to just be converted using ECMAScript // ToString, which in our case amounts to using a template literal. data = "".concat(data); // "Remove all ASCII whitespace from data." data = data.replace(/[ \t\n\f\r]/g, ""); // "If data's length divides by 4 leaving no remainder, then: if data ends // with one or two U+003D (=) code points, then remove them from data." if (data.length % 4 === 0) { data = data.replace(/==?$/, ""); } // "If data's length divides by 4 leaving a remainder of 1, then return // failure." // // "If data contains a code point that is not one of // // U+002B (+) // U+002F (/) // ASCII alphanumeric // // then return failure." if (data.length % 4 === 1 || /[^+/0-9A-Za-z]/.test(data)) { return null; } // "Let output be an empty byte sequence." var output = ""; // "Let buffer be an empty buffer that can have bits appended to it." // // We append bits via left-shift and or. accumulatedBits is used to track // when we've gotten to 24 bits. var buffer = 0; var accumulatedBits = 0; // "Let position be a position variable for data, initially pointing at the // start of data." // // "While position does not point past the end of data:" for (var i = 0; i < data.length; i++) { // "Find the code point pointed to by position in the second column of // Table 1: The Base 64 Alphabet of RFC 4648. Let n be the number given in // the first cell of the same row. // // "Append to buffer the six bits corresponding to n, most significant bit // first." // // atobLookup() implements the table from RFC 4648. buffer <<= 6; buffer |= atobLookup(data[i]); accumulatedBits += 6; // "If buffer has accumulated 24 bits, interpret them as three 8-bit // big-endian numbers. Append three bytes with values equal to those // numbers to output, in the same order, and then empty buffer." if (accumulatedBits === 24) { output += String.fromCharCode((buffer & 0xff0000) >> 16); output += String.fromCharCode((buffer & 0xff00) >> 8); output += String.fromCharCode(buffer & 0xff); buffer = accumulatedBits = 0; } // "Advance position by 1." } // "If buffer is not empty, it contains either 12 or 18 bits. If it contains // 12 bits, then discard the last four and interpret the remaining eight as // an 8-bit big-endian number. If it contains 18 bits, then discard the last // two and interpret the remaining 16 as two 8-bit big-endian numbers. Append // the one or two bytes with values equal to those one or two numbers to // output, in the same order." if (accumulatedBits === 12) { buffer >>= 4; output += String.fromCharCode(buffer); } else if (accumulatedBits === 18) { buffer >>= 2; output += String.fromCharCode((buffer & 0xff00) >> 8); output += String.fromCharCode(buffer & 0xff); } // "Return output." return output; } /** * A lookup table for atob(), which converts an ASCII character to the * corresponding six-bit number. */ var keystr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; function atobLookup(chr) { var index = keystr.indexOf(chr); // Throw exception if character is not in the lookup string; should not be hit in tests return index < 0 ? undefined : index; } module.exports = atob; /***/ }), /***/ 1485: /***/ ((module) => { "use strict"; /** * btoa() as defined by the HTML and Infra specs, which mostly just references * RFC 4648. */ function btoa(s) { if (arguments.length === 0) { throw new TypeError("1 argument required, but only 0 present."); } var i; // String conversion as required by Web IDL. s = "".concat(s); // "The btoa() method must throw an "InvalidCharacterError" DOMException if // data contains any character whose code point is greater than U+00FF." for (i = 0; i < s.length; i++) { if (s.charCodeAt(i) > 255) { return null; } } var out = ""; for (i = 0; i < s.length; i += 3) { var groupsOfSix = [undefined, undefined, undefined, undefined]; groupsOfSix[0] = s.charCodeAt(i) >> 2; groupsOfSix[1] = (s.charCodeAt(i) & 0x03) << 4; if (s.length > i + 1) { groupsOfSix[1] |= s.charCodeAt(i + 1) >> 4; groupsOfSix[2] = (s.charCodeAt(i + 1) & 0x0f) << 2; } if (s.length > i + 2) { groupsOfSix[2] |= s.charCodeAt(i + 2) >> 6; groupsOfSix[3] = s.charCodeAt(i + 2) & 0x3f; } for (var j = 0; j < groupsOfSix.length; j++) { if (typeof groupsOfSix[j] === "undefined") { out += "="; } else { out += btoaLookup(groupsOfSix[j]); } } } return out; } /** * Lookup table for btoa(), which converts a six-bit number into the * corresponding ASCII character. */ var keystr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; function btoaLookup(index) { if (index >= 0 && index < 64) { return keystr[index]; } // Throw INVALID_CHARACTER_ERR exception here -- won't be hit in the tests. return undefined; } module.exports = btoa; /***/ }), /***/ 5542: /***/ ((module, exports, __webpack_require__) => { /* module decorator */ module = __webpack_require__.nmd(module); var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;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 ? 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"symbol" : typeof obj; }, _typeof2(obj); } /*! @license DOMPurify 2.4.5 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/2.4.5/LICENSE */ (function (global, factory) { ( false ? 0 : _typeof2(exports)) === 'object' && "object" !== 'undefined' ? module.exports = factory() : true ? !(__WEBPACK_AMD_DEFINE_FACTORY__ = (factory), __WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ? 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"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) { transformCaseFunc = transformCaseFunc ? 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']); 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 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 = '2.4.5'; /** * 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 && typeof 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; 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; /* Decide if document with ... 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 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', 'desc', 'title', '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 . 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 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 . 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 // 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 = '' + 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 = '' + dirty + ''; } 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, 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(/