diff --git a/app/index.html b/app/index.html
index 9d7893f..021d0a1 100644
--- a/app/index.html
+++ b/app/index.html
@@ -9,6 +9,7 @@
+
diff --git a/static/js/main.js b/static/js/main.js
index afc5672..0d94c2d 100644
--- a/static/js/main.js
+++ b/static/js/main.js
@@ -192,7 +192,7 @@ function updateFont() {
noteBox.style.fontSize = currentFontSize + "px"
textSizeBox.innerText = currentFontSize + "px"
if (markdowntoggle) {
- markdown.srcdoc = "" + marked.parse(noteBox.value) + "";
+ markdown.srcdoc = "" + marked.parse(DOMPurify.sanitize(noteBox.value)) + "";
}
}
@@ -417,7 +417,7 @@ function updateWordCount() {
function renderMarkDown() {
if (markdowntoggle) {
- markdown.srcdoc = "" + marked.parse(noteBox.value) + ""
+ markdown.srcdoc = "" + marked.parse(DOMPurify.sanitize(noteBox.value)) + ""
}
}
@@ -650,7 +650,7 @@ newNote.addEventListener("click", () => {
});
});
function downloadObjectAsJson(exportObj, exportName) {
- let dataStr = "data:text/json;charset=utf-8," + encodeURIComponent(JSON.stringify(exportObj));
+ let dataStr = "data:text/json;charset=utf-8," + DOMPurify.sanitize(JSON.stringify(exportObj));
let downloadAnchorNode = document.createElement("a");
downloadAnchorNode.setAttribute("href", dataStr);
downloadAnchorNode.setAttribute("download", exportName + ".json");
@@ -799,7 +799,7 @@ removeBox.addEventListener("click", () => {
});
document.addEventListener("DOMContentLoaded", function() {
- markdown.srcdoc = "" + marked.parse(noteBox.value) + ""
+ markdown.srcdoc = "" + marked.parse(DOMPurify.sanitize(noteBox.value)) + ""
});
if (firstNewVersion()) {
diff --git a/static/js/purify.js b/static/js/purify.js
new file mode 100644
index 0000000..ced8c9a
--- /dev/null
+++ b/static/js/purify.js
@@ -0,0 +1,1565 @@
+// @license magnet:?xt=urn:btih:8e4f440f4c65981c5bf93c76d35135ba5064d8b7&dn=apache-2.0.txt Apache-2.0
+
+/*! @license DOMPurify 3.1.5 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/3.1.5/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';
+
+ const {
+ entries,
+ setPrototypeOf,
+ isFrozen,
+ getPrototypeOf,
+ getOwnPropertyDescriptor
+ } = Object;
+ let {
+ freeze,
+ seal,
+ create
+ } = Object; // eslint-disable-line import/no-mutable-exports
+ let {
+ apply,
+ construct
+ } = typeof Reflect !== 'undefined' && Reflect;
+ if (!freeze) {
+ freeze = function freeze(x) {
+ return x;
+ };
+ }
+ if (!seal) {
+ seal = function seal(x) {
+ return x;
+ };
+ }
+ if (!apply) {
+ apply = function apply(fun, thisValue, args) {
+ return fun.apply(thisValue, args);
+ };
+ }
+ if (!construct) {
+ construct = function construct(Func, args) {
+ return new Func(...args);
+ };
+ }
+ const arrayForEach = unapply(Array.prototype.forEach);
+ const arrayPop = unapply(Array.prototype.pop);
+ const arrayPush = unapply(Array.prototype.push);
+ const stringToLowerCase = unapply(String.prototype.toLowerCase);
+ const stringToString = unapply(String.prototype.toString);
+ const stringMatch = unapply(String.prototype.match);
+ const stringReplace = unapply(String.prototype.replace);
+ const stringIndexOf = unapply(String.prototype.indexOf);
+ const stringTrim = unapply(String.prototype.trim);
+ const objectHasOwnProperty = unapply(Object.prototype.hasOwnProperty);
+ const regExpTest = unapply(RegExp.prototype.test);
+ const typeErrorCreate = unconstruct(TypeError);
+
+ /**
+ * Creates a new function that calls the given function with a specified thisArg and arguments.
+ *
+ * @param {Function} func - The function to be wrapped and called.
+ * @returns {Function} A new function that calls the given function with a specified thisArg and arguments.
+ */
+ 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);
+ };
+ }
+
+ /**
+ * Creates a new function that constructs an instance of the given constructor function with the provided arguments.
+ *
+ * @param {Function} func - The constructor function to be wrapped and called.
+ * @returns {Function} A new function that constructs an instance of the given constructor function with the provided arguments.
+ */
+ 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
+ *
+ * @param {Object} set - The set to which elements will be added.
+ * @param {Array} array - The array containing elements to be added to the set.
+ * @param {Function} transformCaseFunc - An optional function to transform the case of each element before adding to the set.
+ * @returns {Object} The modified set with added elements.
+ */
+ function addToSet(set, array) {
+ let transformCaseFunc = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 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);
+ }
+ let l = array.length;
+ while (l--) {
+ let element = array[l];
+ if (typeof element === 'string') {
+ const 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;
+ }
+
+ /**
+ * Clean up an array to harden against CSPP
+ *
+ * @param {Array} array - The array to be cleaned.
+ * @returns {Array} The cleaned version of the array
+ */
+ function cleanArray(array) {
+ for (let index = 0; index < array.length; index++) {
+ const isPropertyExist = objectHasOwnProperty(array, index);
+ if (!isPropertyExist) {
+ array[index] = null;
+ }
+ }
+ return array;
+ }
+
+ /**
+ * Shallow clone an object
+ *
+ * @param {Object} object - The object to be cloned.
+ * @returns {Object} A new object that copies the original.
+ */
+ function clone(object) {
+ const newObject = create(null);
+ for (const [property, value] of entries(object)) {
+ const isPropertyExist = objectHasOwnProperty(object, property);
+ if (isPropertyExist) {
+ if (Array.isArray(value)) {
+ newObject[property] = cleanArray(value);
+ } else if (value && typeof value === 'object' && value.constructor === Object) {
+ newObject[property] = clone(value);
+ } else {
+ newObject[property] = value;
+ }
+ }
+ }
+ return newObject;
+ }
+
+ /**
+ * This method automatically checks if the prop is function or getter and behaves accordingly.
+ *
+ * @param {Object} object - The object to look up the getter function in its prototype chain.
+ * @param {String} prop - The property name for which to find the getter function.
+ * @returns {Function} The getter function found in the prototype chain or a fallback function.
+ */
+ function lookupGetter(object, prop) {
+ while (object !== null) {
+ const 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() {
+ return null;
+ }
+ return fallbackValue;
+ }
+
+ const 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
+ const 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']);
+ const svgFilters = freeze(['feBlend', 'feColorMatrix', 'feComponentTransfer', 'feComposite', 'feConvolveMatrix', 'feDiffuseLighting', 'feDisplacementMap', 'feDistantLight', 'feDropShadow', '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.
+ const svgDisallowed = freeze(['animate', 'color-profile', 'cursor', 'discard', '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']);
+ const 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', 'mprescripts']);
+
+ // Similarly to SVG, we want to know all MathML elements,
+ // even those that we disallow by default.
+ const mathMlDisallowed = freeze(['maction', 'maligngroup', 'malignmark', 'mlongdiv', 'mscarries', 'mscarry', 'msgroup', 'mstack', 'msline', 'msrow', 'semantics', 'annotation', 'annotation-xml', 'mprescripts', 'none']);
+ const text = freeze(['#text']);
+
+ const 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', 'popover', 'popovertarget', 'popovertargetaction', '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', 'wrap', 'xmlns', 'slot']);
+ const 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']);
+ const 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']);
+ const xml = freeze(['xlink:href', 'xml:id', 'xlink:title', 'xml:space', 'xmlns:xlink']);
+
+ // eslint-disable-next-line unicorn/better-regex
+ const MUSTACHE_EXPR = seal(/\{\{[\w\W]*|[\w\W]*\}\}/gm); // Specify template detection regex for SAFE_FOR_TEMPLATES mode
+ const ERB_EXPR = seal(/<%[\w\W]*|[\w\W]*%>/gm);
+ const TMPLIT_EXPR = seal(/\${[\w\W]*}/gm);
+ const DATA_ATTR = seal(/^data-[\-\w.\u00B7-\uFFFF]/); // eslint-disable-line no-useless-escape
+ const ARIA_ATTR = seal(/^aria-[\-\w]+$/); // eslint-disable-line no-useless-escape
+ const IS_ALLOWED_URI = seal(/^(?:(?:(?:f|ht)tps?|mailto|tel|callto|sms|cid|xmpp):|[^a-z]|[a-z+.\-]+(?:[^a-z+.\-:]|$))/i // eslint-disable-line no-useless-escape
+ );
+ const IS_SCRIPT_OR_DATA = seal(/^(?:\w+script|data):/i);
+ const ATTR_WHITESPACE = seal(/[\u0000-\u0020\u00A0\u1680\u180E\u2000-\u2029\u205F\u3000]/g // eslint-disable-line no-control-regex
+ );
+ const DOCTYPE_NAME = seal(/^html$/i);
+ const CUSTOM_ELEMENT = seal(/^[a-z][.\w]*(-[.\w]+)+$/i);
+
+ var EXPRESSIONS = /*#__PURE__*/Object.freeze({
+ __proto__: null,
+ MUSTACHE_EXPR: MUSTACHE_EXPR,
+ ERB_EXPR: ERB_EXPR,
+ TMPLIT_EXPR: TMPLIT_EXPR,
+ DATA_ATTR: DATA_ATTR,
+ ARIA_ATTR: ARIA_ATTR,
+ IS_ALLOWED_URI: IS_ALLOWED_URI,
+ IS_SCRIPT_OR_DATA: IS_SCRIPT_OR_DATA,
+ ATTR_WHITESPACE: ATTR_WHITESPACE,
+ DOCTYPE_NAME: DOCTYPE_NAME,
+ CUSTOM_ELEMENT: CUSTOM_ELEMENT
+ });
+
+ // https://developer.mozilla.org/en-US/docs/Web/API/Node/nodeType
+ const NODE_TYPE = {
+ element: 1,
+ attribute: 2,
+ text: 3,
+ cdataSection: 4,
+ entityReference: 5,
+ // Deprecated
+ entityNode: 6,
+ // Deprecated
+ progressingInstruction: 7,
+ comment: 8,
+ document: 9,
+ documentType: 10,
+ documentFragment: 11,
+ notation: 12 // Deprecated
+ };
+ const 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 {HTMLScriptElement} purifyHostElement The Script element used to load DOMPurify (to determine policy name suffix).
+ * @return {TrustedTypePolicy} The policy created (or null, if Trusted Types
+ * are not supported or creating the policy failed).
+ */
+ const _createTrustedTypesPolicy = function _createTrustedTypesPolicy(trustedTypes, purifyHostElement) {
+ 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.
+ let suffix = null;
+ const ATTR_NAME = 'data-tt-policy-suffix';
+ if (purifyHostElement && purifyHostElement.hasAttribute(ATTR_NAME)) {
+ suffix = purifyHostElement.getAttribute(ATTR_NAME);
+ }
+ const policyName = 'dompurify' + (suffix ? '#' + suffix : '');
+ try {
+ return trustedTypes.createPolicy(policyName, {
+ createHTML(html) {
+ return html;
+ },
+ 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() {
+ let window = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : getGlobal();
+ const DOMPurify = root => createDOMPurify(root);
+
+ /**
+ * Version label, exposed for easier checks
+ * if DOMPurify is up to date or not
+ */
+ DOMPurify.version = '3.1.5';
+
+ /**
+ * Array of elements that DOMPurify removed during sanitation.
+ * Empty if nothing was removed.
+ */
+ DOMPurify.removed = [];
+ if (!window || !window.document || window.document.nodeType !== NODE_TYPE.document) {
+ // Not running in a browser, provide a factory function
+ // so that you can pass your own Window
+ DOMPurify.isSupported = false;
+ return DOMPurify;
+ }
+ let {
+ document
+ } = window;
+ const originalDocument = document;
+ const currentScript = originalDocument.currentScript;
+ const {
+ DocumentFragment,
+ HTMLTemplateElement,
+ Node,
+ Element,
+ NodeFilter,
+ NamedNodeMap = window.NamedNodeMap || window.MozNamedAttrMap,
+ HTMLFormElement,
+ DOMParser,
+ trustedTypes
+ } = window;
+ const ElementPrototype = Element.prototype;
+ const cloneNode = lookupGetter(ElementPrototype, 'cloneNode');
+ const getNextSibling = lookupGetter(ElementPrototype, 'nextSibling');
+ const getChildNodes = lookupGetter(ElementPrototype, 'childNodes');
+ const 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') {
+ const template = document.createElement('template');
+ if (template.content && template.content.ownerDocument) {
+ document = template.content.ownerDocument;
+ }
+ }
+ let trustedTypesPolicy;
+ let emptyHTML = '';
+ const {
+ implementation,
+ createNodeIterator,
+ createDocumentFragment,
+ getElementsByTagName
+ } = document;
+ const {
+ importNode
+ } = originalDocument;
+ let hooks = {};
+
+ /**
+ * Expose whether this browser supports running the full DOMPurify.
+ */
+ DOMPurify.isSupported = typeof entries === 'function' && typeof getParentNode === 'function' && implementation && implementation.createHTMLDocument !== undefined;
+ const {
+ MUSTACHE_EXPR,
+ ERB_EXPR,
+ TMPLIT_EXPR,
+ DATA_ATTR,
+ ARIA_ATTR,
+ IS_SCRIPT_OR_DATA,
+ ATTR_WHITESPACE,
+ CUSTOM_ELEMENT
+ } = EXPRESSIONS;
+ let {
+ IS_ALLOWED_URI: IS_ALLOWED_URI$1
+ } = EXPRESSIONS;
+
+ /**
+ * 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 */
+ let ALLOWED_TAGS = null;
+ const DEFAULT_ALLOWED_TAGS = addToSet({}, [...html$1, ...svg$1, ...svgFilters, ...mathMl$1, ...text]);
+
+ /* Allowed attribute names */
+ let ALLOWED_ATTR = null;
+ const DEFAULT_ALLOWED_ATTR = addToSet({}, [...html, ...svg, ...mathMl, ...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`.
+ */
+ let CUSTOM_ELEMENT_HANDLING = Object.seal(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) */
+ let FORBID_TAGS = null;
+
+ /* Explicitly forbidden attributes (overrides ALLOWED_ATTR/ADD_ATTR) */
+ let FORBID_ATTR = null;
+
+ /* Decide if ARIA attributes are okay */
+ let ALLOW_ARIA_ATTR = true;
+
+ /* Decide if custom data attributes are okay */
+ let ALLOW_DATA_ATTR = true;
+
+ /* Decide if unknown protocols are okay */
+ let ALLOW_UNKNOWN_PROTOCOLS = false;
+
+ /* Decide if self-closing tags in attributes are allowed.
+ * Usually removed due to a mXSS issue in jQuery 3.0 */
+ let ALLOW_SELF_CLOSE_IN_ATTR = true;
+
+ /* Output should be safe for common template engines.
+ * This means, DOMPurify removes data attributes, mustaches and ERB
+ */
+ let 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.
+ */
+ let SAFE_FOR_XML = true;
+
+ /* Decide if document with ... should be returned */
+ let WHOLE_DOCUMENT = false;
+
+ /* Track whether config is already set on this instance of DOMPurify. */
+ let 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 */
+ let 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
+ */
+ let 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) */
+ let 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 */
+ let RETURN_TRUSTED_TYPE = false;
+
+ /* Output should be free from DOM clobbering attacks?
+ * This sanitizes markups named with colliding, clobberable built-in DOM APIs.
+ */
+ let 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-`
+ */
+ let SANITIZE_NAMED_PROPS = false;
+ const SANITIZE_NAMED_PROPS_PREFIX = 'user-content-';
+
+ /* Keep element content when removing element? */
+ let 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 */
+ let IN_PLACE = false;
+
+ /* Allow usage of profiles like html, svg and mathMl */
+ let USE_PROFILES = {};
+
+ /* Tags to ignore content of when KEEP_CONTENT is true */
+ let FORBID_CONTENTS = null;
+ const 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 */
+ let DATA_URI_TAGS = null;
+ const DEFAULT_DATA_URI_TAGS = addToSet({}, ['audio', 'video', 'img', 'source', 'image', 'track']);
+
+ /* Attributes safe for values like "javascript:" */
+ let URI_SAFE_ATTRIBUTES = null;
+ const DEFAULT_URI_SAFE_ATTRIBUTES = addToSet({}, ['alt', 'class', 'for', 'id', 'label', 'name', 'pattern', 'placeholder', 'role', 'summary', 'title', 'value', 'style', 'xmlns']);
+ const MATHML_NAMESPACE = 'http://www.w3.org/1998/Math/MathML';
+ const SVG_NAMESPACE = 'http://www.w3.org/2000/svg';
+ const HTML_NAMESPACE = 'http://www.w3.org/1999/xhtml';
+ /* Document namespace */
+ let NAMESPACE = HTML_NAMESPACE;
+ let IS_EMPTY_INPUT = false;
+
+ /* Allowed XHTML+XML namespaces */
+ let ALLOWED_NAMESPACES = null;
+ const DEFAULT_ALLOWED_NAMESPACES = addToSet({}, [MATHML_NAMESPACE, SVG_NAMESPACE, HTML_NAMESPACE], stringToString);
+
+ /* Parsing of strict XHTML documents */
+ let PARSER_MEDIA_TYPE = null;
+ const SUPPORTED_PARSER_MEDIA_TYPES = ['application/xhtml+xml', 'text/html'];
+ const DEFAULT_PARSER_MEDIA_TYPE = 'text/html';
+ let transformCaseFunc = null;
+
+ /* Keep a reference to config to pass to hooks */
+ let CONFIG = null;
+
+ /* Ideally, do not touch anything below this line */
+ /* ______________________________________________ */
+
+ const formElement = document.createElement('form');
+ const isRegexOrFunction = function isRegexOrFunction(testValue) {
+ return testValue instanceof RegExp || testValue instanceof Function;
+ };
+
+ /**
+ * _parseConfig
+ *
+ * @param {Object} cfg optional config literal
+ */
+ // eslint-disable-next-line complexity
+ const _parseConfig = function _parseConfig() {
+ let cfg = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+ 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 ? DEFAULT_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 = objectHasOwnProperty(cfg, 'ALLOWED_TAGS') ? addToSet({}, cfg.ALLOWED_TAGS, transformCaseFunc) : DEFAULT_ALLOWED_TAGS;
+ ALLOWED_ATTR = objectHasOwnProperty(cfg, 'ALLOWED_ATTR') ? addToSet({}, cfg.ALLOWED_ATTR, transformCaseFunc) : DEFAULT_ALLOWED_ATTR;
+ ALLOWED_NAMESPACES = objectHasOwnProperty(cfg, 'ALLOWED_NAMESPACES') ? addToSet({}, cfg.ALLOWED_NAMESPACES, stringToString) : DEFAULT_ALLOWED_NAMESPACES;
+ URI_SAFE_ATTRIBUTES = objectHasOwnProperty(cfg, 'ADD_URI_SAFE_ATTR') ? 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 = objectHasOwnProperty(cfg, 'ADD_DATA_URI_TAGS') ? 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 = objectHasOwnProperty(cfg, 'FORBID_CONTENTS') ? addToSet({}, cfg.FORBID_CONTENTS, transformCaseFunc) : DEFAULT_FORBID_CONTENTS;
+ FORBID_TAGS = objectHasOwnProperty(cfg, 'FORBID_TAGS') ? addToSet({}, cfg.FORBID_TAGS, transformCaseFunc) : {};
+ FORBID_ATTR = objectHasOwnProperty(cfg, 'FORBID_ATTR') ? addToSet({}, cfg.FORBID_ATTR, transformCaseFunc) : {};
+ USE_PROFILES = objectHasOwnProperty(cfg, 'USE_PROFILES') ? 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;
+ 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({}, 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;
+ }
+ if (cfg.TRUSTED_TYPES_POLICY) {
+ if (typeof cfg.TRUSTED_TYPES_POLICY.createHTML !== 'function') {
+ throw typeErrorCreate('TRUSTED_TYPES_POLICY configuration option must provide a "createHTML" hook.');
+ }
+ if (typeof cfg.TRUSTED_TYPES_POLICY.createScriptURL !== 'function') {
+ throw typeErrorCreate('TRUSTED_TYPES_POLICY configuration option must provide a "createScriptURL" hook.');
+ }
+
+ // Overwrite existing TrustedTypes policy.
+ trustedTypesPolicy = cfg.TRUSTED_TYPES_POLICY;
+
+ // Sign local variables required by `sanitize`.
+ emptyHTML = trustedTypesPolicy.createHTML('');
+ } else {
+ // Uninitialized policy, attempt to initialize the internal dompurify policy.
+ if (trustedTypesPolicy === undefined) {
+ trustedTypesPolicy = _createTrustedTypesPolicy(trustedTypes, currentScript);
+ }
+
+ // If creating the internal policy succeeded sign internal variables.
+ if (trustedTypesPolicy !== null && typeof emptyHTML === 'string') {
+ emptyHTML = trustedTypesPolicy.createHTML('');
+ }
+ }
+
+ // Prevent further manipulation of configuration.
+ // Not available in IE8, Safari 5, etc.
+ if (freeze) {
+ freeze(cfg);
+ }
+ CONFIG = cfg;
+ };
+ const MATHML_TEXT_INTEGRATION_POINTS = addToSet({}, ['mi', 'mo', 'mn', 'ms', 'mtext']);
+ const 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.
+ const 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. */
+ const ALL_SVG_TAGS = addToSet({}, [...svg$1, ...svgFilters, ...svgDisallowed]);
+ const ALL_MATHML_TAGS = addToSet({}, [...mathMl$1, ...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.
+ */
+ const _checkValidNamespace = function _checkValidNamespace(element) {
+ let 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'
+ };
+ }
+ const tagName = stringToLowerCase(element.tagName);
+ const 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