From 4d4892b5e30bf85841effc7df93706cd62acfa38 Mon Sep 17 00:00:00 2001 From: Matthew Amato Date: Tue, 17 Nov 2020 18:36:28 -0500 Subject: [PATCH] Update DOMPurify to 2.2.2 We were very out of date and this addresses several potential OWASP vulnerabilities. Fixes #9240 --- CHANGES.md | 1 + Source/ThirdParty/purify.js | 549 ++++++++++++++++++++++-------------- 2 files changed, 345 insertions(+), 205 deletions(-) diff --git a/CHANGES.md b/CHANGES.md index cf3bf335d47a..3211322c2235 100644 --- a/CHANGES.md +++ b/CHANGES.md @@ -5,6 +5,7 @@ ##### Fixes :wrench: - Fixed an issue where tileset styles would be reapplied every frame when a tileset has a style and `tileset.preloadWhenHidden` is true and `tileset.show` is false. Also fixed a related issue where styles would be reapplied if the style being set is the same as the active style. [#9223](https://github.com/CesiumGS/cesium/pull/9223) +- Updated DOMPurify from 1.0.8 to 2.2.2. [#9240](https://github.com/CesiumGS/cesium/issues/9240) ### 1.75 - 2020-11-02 diff --git a/Source/ThirdParty/purify.js b/Source/ThirdParty/purify.js index 895787636304..b031c49dff0c 100644 --- a/Source/ThirdParty/purify.js +++ b/Source/ThirdParty/purify.js @@ -1,62 +1,197 @@ -var html = ['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', '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', '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']; +/*! @license DOMPurify | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/2.0.8/LICENSE */ -// SVG -var svg = ['svg', 'a', 'altglyph', 'altglyphdef', 'altglyphitem', 'animatecolor', 'animatemotion', 'animatetransform', 'audio', 'canvas', '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', 'video', 'view', 'vkern']; +function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } } + +var hasOwnProperty = Object.hasOwnProperty, + setPrototypeOf = Object.setPrototypeOf, + isFrozen = Object.isFrozen; +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; + }; +} -var svgFilters = ['feBlend', 'feColorMatrix', 'feComponentTransfer', 'feComposite', 'feConvolveMatrix', 'feDiffuseLighting', 'feDisplacementMap', 'feDistantLight', 'feFlood', 'feFuncA', 'feFuncB', 'feFuncG', 'feFuncR', 'feGaussianBlur', 'feMerge', 'feMergeNode', 'feMorphology', 'feOffset', 'fePointLight', 'feSpecularLighting', 'feSpotLight', 'feTile', 'feTurbulence']; +if (!seal) { + seal = function seal(x) { + return x; + }; +} -var mathMl = ['math', 'menclose', 'merror', 'mfenced', 'mfrac', 'mglyph', 'mi', 'mlabeledtr', 'mmuliscripts', 'mn', 'mo', 'mover', 'mpadded', 'mphantom', 'mroot', 'mrow', 'ms', 'mpspace', 'msqrt', 'mystyle', 'msub', 'msup', 'msubsup', 'mtable', 'mtd', 'mtext', 'mtr', 'munder', 'munderover']; +if (!construct) { + construct = function construct(Func, args) { + return new (Function.prototype.bind.apply(Func, [null].concat(_toConsumableArray(args))))(); + }; +} -var text = ['#text']; +var arrayForEach = unapply(Array.prototype.forEach); +var arrayPop = unapply(Array.prototype.pop); +var arrayPush = unapply(Array.prototype.push); -var html$1 = ['accept', 'action', 'align', 'alt', 'autocomplete', 'background', 'bgcolor', 'border', 'cellpadding', 'cellspacing', 'checked', 'cite', 'class', 'clear', 'color', 'cols', 'colspan', 'coords', 'crossorigin', 'datetime', 'default', 'dir', 'disabled', 'download', 'enctype', 'face', 'for', 'headers', 'height', 'hidden', 'high', 'href', 'hreflang', 'id', 'integrity', 'ismap', 'label', 'lang', 'list', 'loop', 'low', 'max', 'maxlength', 'media', 'method', 'min', 'multiple', 'name', 'noshade', 'novalidate', 'nowrap', 'open', 'optimum', 'pattern', 'placeholder', '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', 'type', 'usemap', 'valign', 'value', 'width', 'xmlns']; +var stringToLowerCase = unapply(String.prototype.toLowerCase); +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 = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) { + args[_key - 1] = arguments[_key]; + } -var svg$1 = ['accent-height', 'accumulate', 'additivive', 'alignment-baseline', 'ascent', 'attributename', 'attributetype', 'azimuth', 'basefrequency', 'baseline-shift', 'begin', 'bias', 'by', 'class', 'clip', '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', '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', 'r', 'rx', 'ry', 'radius', 'refx', 'refy', 'repeatcount', 'repeatdur', 'restart', 'result', 'rotate', 'scale', 'seed', 'shape-rendering', 'specularconstant', 'specularexponent', 'spreadmethod', 'stddeviation', 'stitchtiles', 'stop-color', 'stop-opacity', 'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', 'stroke', 'stroke-width', 'style', 'surfacescale', 'tabindex', 'targetx', 'targety', 'transform', 'text-anchor', 'text-decoration', 'text-rendering', 'textlength', 'type', 'u1', 'u2', 'unicode', 'values', 'viewbox', 'visibility', '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']; + return apply(func, thisArg, args); + }; +} -var mathMl$1 = ['accent', 'accentunder', 'align', 'bevelled', 'close', 'columnsalign', 'columnlines', 'columnspan', 'denomalign', 'depth', 'dir', 'display', 'displaystyle', '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']; +function unconstruct(func) { + return function () { + for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) { + args[_key2] = arguments[_key2]; + } -var xml = ['xlink:href', 'xml:id', 'xlink:title', 'xml:space', 'xmlns:xlink']; + return construct(func, args); + }; +} /* Add properties to a lookup table */ function addToSet(set, array) { + if (setPrototypeOf) { + // Make 'in' and truthy checks like Boolean(set.constructor) + // independent of any properties defined on Object.prototype. + // Prevent prototype setters from intercepting set as a this value. + setPrototypeOf(set, null); + } + var l = array.length; while (l--) { - if (typeof array[l] === 'string') { - array[l] = array[l].toLowerCase(); + var element = array[l]; + if (typeof element === 'string') { + var lcElement = stringToLowerCase(element); + if (lcElement !== element) { + // Config presets (e.g. tags.js, attrs.js) are immutable. + if (!isFrozen(array)) { + array[l] = lcElement; + } + + element = lcElement; + } } - set[array[l]] = true; + + set[element] = true; } + return set; } /* Shallow clone an object */ function clone(object) { - var newObject = {}; + var newObject = create(null); + var property = void 0; for (property in object) { - if (Object.prototype.hasOwnProperty.call(object, property)) { + if (apply(hasOwnProperty, object, [property])) { newObject[property] = object[property]; } } + return newObject; } -var MUSTACHE_EXPR = /\{\{[\s\S]*|[\s\S]*\}\}/gm; // Specify template detection regex for SAFE_FOR_TEMPLATES mode -var ERB_EXPR = /<%[\s\S]*|[\s\S]*%>/gm; -var DATA_ATTR = /^data-[\-\w.\u00B7-\uFFFF]/; // eslint-disable-line no-useless-escape -var ARIA_ATTR = /^aria-[\-\w]+$/; // eslint-disable-line no-useless-escape -var IS_ALLOWED_URI = /^(?:(?:(?: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 = /^(?:\w+script|data):/i; -var ATTR_WHITESPACE = /[\u0000-\u0020\u00A0\u1680\u180E\u2000-\u2029\u205f\u3000]/g; // eslint-disable-line no-control-regex +var html = freeze(['a', 'abbr', 'acronym', 'address', 'area', 'article', 'aside', 'audio', 'b', 'bdi', 'bdo', 'big', 'blink', 'blockquote', 'body', 'br', 'button', 'canvas', 'caption', 'center', 'cite', 'code', 'col', 'colgroup', 'content', 'data', 'datalist', 'dd', 'decorator', 'del', 'details', 'dfn', 'dialog', 'dir', 'div', 'dl', 'dt', 'element', 'em', 'fieldset', 'figcaption', 'figure', 'font', 'footer', 'form', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head', 'header', 'hgroup', 'hr', 'html', 'i', 'img', 'input', 'ins', 'kbd', 'label', 'legend', 'li', 'main', 'map', 'mark', 'marquee', 'menu', 'menuitem', 'meter', 'nav', 'nobr', 'ol', 'optgroup', 'option', 'output', 'p', 'picture', 'pre', 'progress', 'q', 'rp', 'rt', 'ruby', 's', 'samp', 'section', 'select', 'shadow', 'small', 'source', 'spacer', 'span', 'strike', 'strong', 'style', 'sub', 'summary', 'sup', 'table', 'tbody', 'td', 'template', 'textarea', 'tfoot', 'th', 'thead', 'time', 'tr', 'track', 'tt', 'u', 'ul', 'var', 'video', 'wbr']); + +// SVG +var svg = freeze(['svg', 'a', 'altglyph', 'altglyphdef', 'altglyphitem', 'animatecolor', 'animatemotion', 'animatetransform', 'audio', 'canvas', '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', 'video', 'view', 'vkern']); + +var svgFilters = freeze(['feBlend', 'feColorMatrix', 'feComponentTransfer', 'feComposite', 'feConvolveMatrix', 'feDiffuseLighting', 'feDisplacementMap', 'feDistantLight', 'feFlood', 'feFuncA', 'feFuncB', 'feFuncG', 'feFuncR', 'feGaussianBlur', 'feMerge', 'feMergeNode', 'feMorphology', 'feOffset', 'fePointLight', 'feSpecularLighting', 'feSpotLight', 'feTile', 'feTurbulence']); + +var mathMl = freeze(['math', 'menclose', 'merror', 'mfenced', 'mfrac', 'mglyph', 'mi', 'mlabeledtr', 'mmultiscripts', 'mn', 'mo', 'mover', 'mpadded', 'mphantom', 'mroot', 'mrow', 'ms', 'mspace', 'msqrt', 'mstyle', 'msub', 'msup', 'msubsup', 'mtable', 'mtd', 'mtext', 'mtr', 'munder', 'munderover']); + +var text = freeze(['#text']); + +var html$1 = freeze(['accept', 'action', 'align', 'alt', 'autocapitalize', 'autocomplete', 'autopictureinpicture', 'autoplay', 'background', 'bgcolor', 'border', 'capture', 'cellpadding', 'cellspacing', 'checked', 'cite', 'class', 'clear', 'color', 'cols', 'colspan', 'controls', 'controlslist', 'coords', 'crossorigin', 'datetime', 'decoding', 'default', 'dir', 'disabled', 'disablepictureinpicture', 'disableremoteplayback', 'download', 'draggable', 'enctype', 'enterkeyhint', 'face', 'for', 'headers', 'height', 'hidden', 'high', 'href', 'hreflang', 'id', 'inputmode', 'integrity', 'ismap', 'kind', 'label', 'lang', 'list', 'loading', 'loop', 'low', 'max', 'maxlength', 'media', 'method', 'min', 'minlength', 'multiple', 'muted', 'name', 'noshade', 'novalidate', 'nowrap', 'open', 'optimum', 'pattern', 'placeholder', 'playsinline', 'poster', 'preload', 'pubdate', 'radiogroup', 'readonly', 'rel', 'required', 'rev', 'reversed', 'role', 'rows', 'rowspan', 'spellcheck', 'scope', 'selected', 'shape', 'size', 'sizes', 'span', 'srclang', 'start', 'src', 'srcset', 'step', 'style', 'summary', 'tabindex', 'title', 'translate', 'type', 'usemap', 'valign', 'value', 'width', 'xmlns']); + +var svg$1 = freeze(['accent-height', 'accumulate', 'additive', 'alignment-baseline', 'ascent', 'attributename', 'attributetype', 'azimuth', 'basefrequency', 'baseline-shift', 'begin', 'bias', 'by', 'class', 'clip', 'clippathunits', 'clip-path', 'clip-rule', 'color', 'color-interpolation', 'color-interpolation-filters', 'color-profile', 'color-rendering', 'cx', 'cy', 'd', 'dx', 'dy', 'diffuseconstant', 'direction', 'display', 'divisor', 'dur', 'edgemode', 'elevation', 'end', 'fill', 'fill-opacity', 'fill-rule', 'filter', 'filterunits', 'flood-color', 'flood-opacity', 'font-family', 'font-size', 'font-size-adjust', 'font-stretch', 'font-style', 'font-variant', 'font-weight', 'fx', 'fy', 'g1', 'g2', 'glyph-name', 'glyphref', 'gradientunits', 'gradienttransform', 'height', 'href', 'id', 'image-rendering', 'in', 'in2', 'k', 'k1', 'k2', 'k3', 'k4', 'kerning', 'keypoints', 'keysplines', 'keytimes', 'lang', 'lengthadjust', 'letter-spacing', 'kernelmatrix', 'kernelunitlength', 'lighting-color', 'local', 'marker-end', 'marker-mid', 'marker-start', 'markerheight', 'markerunits', 'markerwidth', 'maskcontentunits', 'maskunits', 'max', 'mask', 'media', 'method', 'mode', 'min', 'name', 'numoctaves', 'offset', 'operator', 'opacity', 'order', 'orient', 'orientation', 'origin', 'overflow', 'paint-order', 'path', 'pathlength', 'patterncontentunits', 'patterntransform', 'patternunits', 'points', 'preservealpha', 'preserveaspectratio', 'primitiveunits', 'r', 'rx', 'ry', 'radius', 'refx', 'refy', 'repeatcount', 'repeatdur', 'restart', 'result', 'rotate', 'scale', 'seed', 'shape-rendering', 'specularconstant', 'specularexponent', 'spreadmethod', 'startoffset', 'stddeviation', 'stitchtiles', 'stop-color', 'stop-opacity', 'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', 'stroke', 'stroke-width', 'style', 'surfacescale', 'systemlanguage', 'tabindex', 'targetx', 'targety', 'transform', 'text-anchor', 'text-decoration', 'text-rendering', 'textlength', 'type', 'u1', 'u2', 'unicode', 'values', 'viewbox', 'visibility', 'version', 'vert-adv-y', 'vert-origin-x', 'vert-origin-y', 'width', 'word-spacing', 'wrap', 'writing-mode', 'xchannelselector', 'ychannelselector', 'x', 'x1', 'x2', 'xmlns', 'y', 'y1', 'y2', 'z', 'zoomandpan']); + +var mathMl$1 = freeze(['accent', 'accentunder', 'align', 'bevelled', 'close', 'columnsalign', 'columnlines', 'columnspan', 'denomalign', 'depth', 'dir', 'display', 'displaystyle', 'encoding', 'fence', 'frame', 'height', 'href', 'id', 'largeop', 'length', 'linethickness', 'lspace', 'lquote', 'mathbackground', 'mathcolor', 'mathsize', 'mathvariant', 'maxsize', 'minsize', 'movablelimits', 'notation', 'numalign', 'open', 'rowalign', 'rowlines', 'rowspacing', 'rowspan', 'rspace', 'rquote', 'scriptlevel', 'scriptminsize', 'scriptsizemultiplier', 'selection', 'separator', 'separators', 'stretchy', 'subscriptshift', 'supscriptshift', 'symmetric', 'voffset', 'width', 'xmlns']); + +var xml = freeze(['xlink:href', 'xml:id', 'xlink:title', 'xml:space', 'xmlns:xlink']); + +// eslint-disable-next-line unicorn/better-regex +var MUSTACHE_EXPR = seal(/\{\{[\s\S]*|[\s\S]*\}\}/gm); // Specify template detection regex for SAFE_FOR_TEMPLATES mode +var ERB_EXPR = seal(/<%[\s\S]*|[\s\S]*%>/gm); +var DATA_ATTR = seal(/^data-[\-\w.\u00B7-\uFFFF]/); // eslint-disable-line no-useless-escape +var ARIA_ATTR = seal(/^aria-[\-\w]+$/); // eslint-disable-line no-useless-escape +var IS_ALLOWED_URI = seal(/^(?:(?:(?:f|ht)tps?|mailto|tel|callto|cid|xmpp):|[^a-z]|[a-z+.\-]+(?:[^a-z+.\-:]|$))/i // eslint-disable-line no-useless-escape +); +var IS_SCRIPT_OR_DATA = seal(/^(?:\w+script|data):/i); +var ATTR_WHITESPACE = seal(/[\u0000-\u0020\u00A0\u1680\u180E\u2000-\u2029\u205F\u3000]/g // eslint-disable-line no-control-regex +); var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; -function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } } +function _toConsumableArray$1(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } } var getGlobal = function getGlobal() { return typeof window === 'undefined' ? null : window; }; +/** + * Creates a no-op policy for internal use only. + * Don't export this function outside this module! + * @param {?TrustedTypePolicyFactory} trustedTypes The policy factory. + * @param {Document} document The document object (to determine policy name suffix) + * @return {?TrustedTypePolicy} The policy created (or null, if Trusted Types + * are not supported). + */ +var _createTrustedTypesPolicy = function _createTrustedTypesPolicy(trustedTypes, document) { + if ((typeof trustedTypes === 'undefined' ? 'undefined' : _typeof(trustedTypes)) !== 'object' || typeof trustedTypes.createPolicy !== 'function') { + return null; + } + + // Allow the callers to control the unique policy name + // by adding a data-tt-policy-suffix to the script element with the DOMPurify. + // Policy creation with duplicate names throws in Trusted Types. + var suffix = null; + var ATTR_NAME = 'data-tt-policy-suffix'; + if (document.currentScript && document.currentScript.hasAttribute(ATTR_NAME)) { + suffix = document.currentScript.getAttribute(ATTR_NAME); + } + + var policyName = 'dompurify' + (suffix ? '#' + suffix : ''); + + try { + return trustedTypes.createPolicy(policyName, { + createHTML: function createHTML(html$$1) { + return html$$1; + } + }); + } catch (_) { + // Policy creation failed (most likely another DOMPurify script has + // already run). Skip creating the policy, as this will only cause errors + // if TT are enforced. + console.warn('TrustedTypes policy ' + policyName + ' could not be created.'); + return null; + } +}; + function createDOMPurify() { var window = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : getGlobal(); @@ -68,7 +203,7 @@ function createDOMPurify() { * Version label, exposed for easier checks * if DOMPurify is up to date or not */ - DOMPurify.version = '1.0.8'; + DOMPurify.version = '2.2.2'; /** * Array of elements that DOMPurify removed during sanitation. @@ -85,8 +220,6 @@ function createDOMPurify() { } var originalDocument = window.document; - var useDOMParser = false; // See comment below - var removeTitle = false; // See comment below var document = window.document; var DocumentFragment = window.DocumentFragment, @@ -97,7 +230,8 @@ function createDOMPurify() { NamedNodeMap = _window$NamedNodeMap === undefined ? window.NamedNodeMap || window.MozNamedAttrMap : _window$NamedNodeMap, Text = window.Text, Comment = window.Comment, - DOMParser = window.DOMParser; + DOMParser = window.DOMParser, + trustedTypes = window.trustedTypes; // As per issue #47, the web-components registry is inherited by a // new document created via createHTMLDocument. As per the spec @@ -113,6 +247,9 @@ function createDOMPurify() { } } + var trustedTypesPolicy = _createTrustedTypesPolicy(trustedTypes, originalDocument); + var emptyHTML = trustedTypesPolicy && RETURN_TRUSTED_TYPE ? trustedTypesPolicy.createHTML('') : ''; + var _document = document, implementation = _document.implementation, createNodeIterator = _document.createNodeIterator, @@ -121,12 +258,17 @@ function createDOMPurify() { var importNode = originalDocument.importNode; + var documentMode = {}; + try { + documentMode = clone(document).documentMode ? document.documentMode : {}; + } catch (_) {} + var hooks = {}; /** * Expose whether this browser supports running the full DOMPurify. */ - DOMPurify.isSupported = implementation && typeof implementation.createHTMLDocument !== 'undefined' && document.documentMode !== 9; + DOMPurify.isSupported = implementation && typeof implementation.createHTMLDocument !== 'undefined' && documentMode !== 9; var MUSTACHE_EXPR$$1 = MUSTACHE_EXPR, ERB_EXPR$$1 = ERB_EXPR, @@ -135,6 +277,7 @@ function createDOMPurify() { 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. @@ -143,11 +286,11 @@ function createDOMPurify() { /* allowed element names */ var ALLOWED_TAGS = null; - var DEFAULT_ALLOWED_TAGS = addToSet({}, [].concat(_toConsumableArray(html), _toConsumableArray(svg), _toConsumableArray(svgFilters), _toConsumableArray(mathMl), _toConsumableArray(text))); + var DEFAULT_ALLOWED_TAGS = addToSet({}, [].concat(_toConsumableArray$1(html), _toConsumableArray$1(svg), _toConsumableArray$1(svgFilters), _toConsumableArray$1(mathMl), _toConsumableArray$1(text))); /* Allowed attribute names */ var ALLOWED_ATTR = null; - var DEFAULT_ALLOWED_ATTR = addToSet({}, [].concat(_toConsumableArray(html$1), _toConsumableArray(svg$1), _toConsumableArray(mathMl$1), _toConsumableArray(xml))); + var DEFAULT_ALLOWED_ATTR = addToSet({}, [].concat(_toConsumableArray$1(html$1), _toConsumableArray$1(svg$1), _toConsumableArray$1(mathMl$1), _toConsumableArray$1(xml))); /* Explicitly forbidden tags (overrides ALLOWED_TAGS/ADD_TAGS) */ var FORBID_TAGS = null; @@ -164,9 +307,6 @@ function createDOMPurify() { /* Decide if unknown protocols are okay */ var ALLOW_UNKNOWN_PROTOCOLS = false; - /* Output should be safe for jQuery's $() factory? */ - var SAFE_FOR_JQUERY = false; - /* Output should be safe for common template engines. * This means, DOMPurify removes data attributes, mustaches and ERB */ @@ -182,19 +322,30 @@ function createDOMPurify() { * 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. + /* 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 */ + /* Decide if a DOM `DocumentFragment` should be returned, instead of a html + * string (or a TrustedHTML object if Trusted Types are supported) */ var RETURN_DOM_FRAGMENT = false; /* If `RETURN_DOM` or `RETURN_DOM_FRAGMENT` is enabled, decide if the returned DOM * `Node` is imported into the current `Document`. If this flag is not enabled the * `Node` will belong (its ownerDocument) to a fresh `HTMLDocument`, created by - * DOMPurify. */ - var RETURN_DOM_IMPORT = false; + * DOMPurify. + * + * This defaults to `true` starting DOMPurify 2.2.0. Note that setting it to `false` + * might cause XSS from attacks hidden in closed shadowroots in case the browser + * supports Declarative Shadow: DOM https://web.dev/declarative-shadow-dom/ + */ + var RETURN_DOM_IMPORT = true; + + /* Try to return a Trusted Type object instead of a string, return a string in + * case Trusted Types are not supported */ + var RETURN_TRUSTED_TYPE = false; /* Output should be free from DOM clobbering attacks? */ var SANITIZE_DOM = true; @@ -210,13 +361,15 @@ function createDOMPurify() { var USE_PROFILES = {}; /* Tags to ignore content of when KEEP_CONTENT is true */ - var FORBID_CONTENTS = addToSet({}, ['audio', 'head', 'math', 'script', 'style', 'template', 'svg', 'video']); + var FORBID_CONTENTS = addToSet({}, ['annotation-xml', 'audio', 'colgroup', 'desc', 'foreignobject', 'head', 'iframe', 'math', 'mi', 'mn', 'mo', 'ms', 'mtext', 'noembed', 'noframes', 'plaintext', 'script', 'style', 'svg', 'template', 'thead', 'title', 'video', 'xmp']); /* Tags that are safe for data: URIs */ - var DATA_URI_TAGS = addToSet({}, ['audio', 'video', 'img', 'source', 'image']); + 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 = addToSet({}, ['alt', 'class', 'for', 'id', 'label', 'name', 'pattern', 'placeholder', 'summary', 'title', 'value', 'style', 'xmlns']); + var URI_SAFE_ATTRIBUTES = null; + var DEFAULT_URI_SAFE_ATTRIBUTES = addToSet({}, ['alt', 'class', 'for', 'id', 'label', 'name', 'pattern', 'placeholder', 'summary', 'title', 'value', 'style', 'xmlns']); /* Keep a reference to config to pass to hooks */ var CONFIG = null; @@ -233,32 +386,40 @@ function createDOMPurify() { */ // eslint-disable-next-line complexity var _parseConfig = function _parseConfig(cfg) { + if (CONFIG && CONFIG === cfg) { + return; + } + /* Shield configuration object from tampering */ - if ((typeof cfg === 'undefined' ? 'undefined' : _typeof(cfg)) !== 'object') { + if (!cfg || (typeof cfg === 'undefined' ? 'undefined' : _typeof(cfg)) !== 'object') { cfg = {}; } + + /* Shield configuration object from prototype pollution */ + cfg = clone(cfg); + /* Set configuration parameters */ ALLOWED_TAGS = 'ALLOWED_TAGS' in cfg ? addToSet({}, cfg.ALLOWED_TAGS) : DEFAULT_ALLOWED_TAGS; ALLOWED_ATTR = 'ALLOWED_ATTR' in cfg ? addToSet({}, cfg.ALLOWED_ATTR) : DEFAULT_ALLOWED_ATTR; + URI_SAFE_ATTRIBUTES = 'ADD_URI_SAFE_ATTR' in cfg ? addToSet(clone(DEFAULT_URI_SAFE_ATTRIBUTES), cfg.ADD_URI_SAFE_ATTR) : DEFAULT_URI_SAFE_ATTRIBUTES; + DATA_URI_TAGS = 'ADD_DATA_URI_TAGS' in cfg ? addToSet(clone(DEFAULT_DATA_URI_TAGS), cfg.ADD_DATA_URI_TAGS) : DEFAULT_DATA_URI_TAGS; FORBID_TAGS = 'FORBID_TAGS' in cfg ? addToSet({}, cfg.FORBID_TAGS) : {}; FORBID_ATTR = 'FORBID_ATTR' in cfg ? addToSet({}, cfg.FORBID_ATTR) : {}; USE_PROFILES = 'USE_PROFILES' in cfg ? cfg.USE_PROFILES : false; ALLOW_ARIA_ATTR = cfg.ALLOW_ARIA_ATTR !== false; // Default true ALLOW_DATA_ATTR = cfg.ALLOW_DATA_ATTR !== false; // Default true ALLOW_UNKNOWN_PROTOCOLS = cfg.ALLOW_UNKNOWN_PROTOCOLS || false; // Default false - SAFE_FOR_JQUERY = cfg.SAFE_FOR_JQUERY || false; // Default false SAFE_FOR_TEMPLATES = cfg.SAFE_FOR_TEMPLATES || false; // Default false WHOLE_DOCUMENT = cfg.WHOLE_DOCUMENT || false; // Default false RETURN_DOM = cfg.RETURN_DOM || false; // Default false RETURN_DOM_FRAGMENT = cfg.RETURN_DOM_FRAGMENT || false; // Default false - RETURN_DOM_IMPORT = cfg.RETURN_DOM_IMPORT || false; // Default false + RETURN_DOM_IMPORT = cfg.RETURN_DOM_IMPORT !== false; // Default true + RETURN_TRUSTED_TYPE = cfg.RETURN_TRUSTED_TYPE || false; // Default false FORCE_BODY = cfg.FORCE_BODY || false; // Default false SANITIZE_DOM = cfg.SANITIZE_DOM !== false; // Default true KEEP_CONTENT = cfg.KEEP_CONTENT !== false; // Default true IN_PLACE = cfg.IN_PLACE || false; // Default false - IS_ALLOWED_URI$$1 = cfg.ALLOWED_URI_REGEXP || IS_ALLOWED_URI$$1; - if (SAFE_FOR_TEMPLATES) { ALLOW_DATA_ATTR = false; } @@ -269,22 +430,25 @@ function createDOMPurify() { /* Parse profile info */ if (USE_PROFILES) { - ALLOWED_TAGS = addToSet({}, [].concat(_toConsumableArray(text))); + ALLOWED_TAGS = addToSet({}, [].concat(_toConsumableArray$1(text))); ALLOWED_ATTR = []; if (USE_PROFILES.html === true) { addToSet(ALLOWED_TAGS, html); addToSet(ALLOWED_ATTR, html$1); } + if (USE_PROFILES.svg === true) { addToSet(ALLOWED_TAGS, svg); addToSet(ALLOWED_ATTR, svg$1); addToSet(ALLOWED_ATTR, xml); } + if (USE_PROFILES.svgFilters === true) { addToSet(ALLOWED_TAGS, svgFilters); addToSet(ALLOWED_ATTR, svg$1); addToSet(ALLOWED_ATTR, xml); } + if (USE_PROFILES.mathMl === true) { addToSet(ALLOWED_TAGS, mathMl); addToSet(ALLOWED_ATTR, mathMl$1); @@ -297,14 +461,18 @@ function createDOMPurify() { if (ALLOWED_TAGS === DEFAULT_ALLOWED_TAGS) { ALLOWED_TAGS = clone(ALLOWED_TAGS); } + addToSet(ALLOWED_TAGS, cfg.ADD_TAGS); } + if (cfg.ADD_ATTR) { if (ALLOWED_ATTR === DEFAULT_ALLOWED_ATTR) { ALLOWED_ATTR = clone(ALLOWED_ATTR); } + addToSet(ALLOWED_ATTR, cfg.ADD_ATTR); } + if (cfg.ADD_URI_SAFE_ATTR) { addToSet(URI_SAFE_ATTRIBUTES, cfg.ADD_URI_SAFE_ATTR); } @@ -319,15 +487,16 @@ function createDOMPurify() { addToSet(ALLOWED_TAGS, ['html', 'head', 'body']); } - /* Add tbody to ALLOWED_TAGS in case tables are permitted, see #286 */ + /* 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 (Object && 'freeze' in Object) { - Object.freeze(cfg); + if (freeze) { + freeze(cfg); } CONFIG = cfg; @@ -339,11 +508,11 @@ function createDOMPurify() { * @param {Node} node a DOM node */ var _forceRemove = function _forceRemove(node) { - DOMPurify.removed.push({ element: node }); + arrayPush(DOMPurify.removed, { element: node }); try { node.parentNode.removeChild(node); - } catch (err) { - node.outerHTML = ''; + } catch (_) { + node.outerHTML = emptyHTML; } }; @@ -355,16 +524,17 @@ function createDOMPurify() { */ var _removeAttribute = function _removeAttribute(name, node) { try { - DOMPurify.removed.push({ + arrayPush(DOMPurify.removed, { attribute: node.getAttributeNode(name), from: node }); - } catch (err) { - DOMPurify.removed.push({ + } catch (_) { + arrayPush(DOMPurify.removed, { attribute: null, from: node }); } + node.removeAttribute(name); }; @@ -383,37 +553,27 @@ function createDOMPurify() { dirty = '' + dirty; } else { /* If FORCE_BODY isn't used, leading whitespace needs to be preserved manually */ - var matches = dirty.match(/^[\s]+/); + var matches = stringMatch(dirty, /^[\r\n\t ]+/); leadingWhitespace = matches && matches[0]; - if (leadingWhitespace) { - dirty = dirty.slice(leadingWhitespace.length); - } } - /* Use DOMParser to workaround Firefox bug (see comment below) */ - if (useDOMParser) { - try { - doc = new DOMParser().parseFromString(dirty, 'text/html'); - } catch (err) {} - } - - /* Remove title to fix an mXSS bug in older MS Edge */ - if (removeTitle) { - addToSet(FORBID_TAGS, ['title']); - } + var dirtyPayload = trustedTypesPolicy ? trustedTypesPolicy.createHTML(dirty) : dirty; + /* Use the DOMParser API by default, fallback later if needs be */ + try { + doc = new DOMParser().parseFromString(dirtyPayload, 'text/html'); + } catch (_) {} - /* Otherwise use createHTMLDocument, because DOMParser is unsafe in - Safari (see comment below) */ + /* Use createHTMLDocument in case DOMParser is not available */ if (!doc || !doc.documentElement) { doc = implementation.createHTMLDocument(''); var _doc = doc, body = _doc.body; body.parentNode.removeChild(body.parentNode.firstElementChild); - body.outerHTML = dirty; + body.outerHTML = dirtyPayload; } - if (leadingWhitespace) { + if (dirty && leadingWhitespace) { doc.body.insertBefore(document.createTextNode(leadingWhitespace), doc.body.childNodes[0] || null); } @@ -421,34 +581,6 @@ function createDOMPurify() { return getElementsByTagName.call(doc, WHOLE_DOCUMENT ? 'html' : 'body')[0]; }; - // Firefox uses a different parser for innerHTML rather than - // DOMParser (see https://bugzilla.mozilla.org/show_bug.cgi?id=1205631) - // which means that you *must* use DOMParser, otherwise the output may - // not be safe if used in a document.write context later. - // - // So we feature detect the Firefox bug and use the DOMParser if necessary. - // - // MS Edge, in older versions, is affected by an mXSS behavior. The second - // check tests for the behavior and fixes it if necessary. - if (DOMPurify.isSupported) { - (function () { - try { - var doc = _initDocument('

'); - if (doc.querySelector('svg img')) { - useDOMParser = true; - } - } catch (err) {} - })(); - (function () { - try { - var doc = _initDocument('</title><img>'); - if (doc.querySelector('title').textContent.match(/<\/title/)) { - removeTitle = true; - } - } catch (err) {} - })(); - } - /** * _createIterator * @@ -471,9 +603,11 @@ function createDOMPurify() { if (elm instanceof Text || elm instanceof Comment) { return false; } - if (typeof elm.nodeName !== 'string' || typeof elm.textContent !== 'string' || typeof elm.removeChild !== 'function' || !(elm.attributes instanceof NamedNodeMap) || typeof elm.removeAttribute !== 'function' || typeof elm.setAttribute !== 'function') { + + if (typeof elm.nodeName !== 'string' || typeof elm.textContent !== 'string' || typeof elm.removeChild !== 'function' || !(elm.attributes instanceof NamedNodeMap) || typeof elm.removeAttribute !== 'function' || typeof elm.setAttribute !== 'function' || typeof elm.namespaceURI !== 'string') { return true; } + return false; }; @@ -483,8 +617,8 @@ function createDOMPurify() { * @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(obj) { - return (typeof Node === 'undefined' ? 'undefined' : _typeof(Node)) === 'object' ? obj instanceof Node : obj && (typeof obj === 'undefined' ? 'undefined' : _typeof(obj)) === 'object' && typeof obj.nodeType === 'number' && typeof obj.nodeName === 'string'; + var _isNode = function _isNode(object) { + return (typeof Node === 'undefined' ? 'undefined' : _typeof(Node)) === 'object' ? object instanceof Node : object && (typeof object === 'undefined' ? 'undefined' : _typeof(object)) === 'object' && typeof object.nodeType === 'number' && typeof object.nodeName === 'string'; }; /** @@ -500,7 +634,7 @@ function createDOMPurify() { return; } - hooks[entryPoint].forEach(function (hook) { + arrayForEach(hooks[entryPoint], function (hook) { hook.call(DOMPurify, currentNode, data, CONFIG); }); }; @@ -527,8 +661,14 @@ function createDOMPurify() { return true; } + /* Check if tagname contains Unicode */ + if (stringMatch(currentNode.nodeName, /[\u0080-\uFFFF]/)) { + _forceRemove(currentNode); + return true; + } + /* Now let's check the element's type and name */ - var tagName = currentNode.nodeName.toLowerCase(); + var tagName = stringToLowerCase(currentNode.nodeName); /* Execute a hook if present */ _executeHook('uponSanitizeElement', currentNode, { @@ -536,36 +676,46 @@ function createDOMPurify() { allowedTags: ALLOWED_TAGS }); + /* Take care of an mXSS pattern using p, br inside svg, math */ + if ((tagName === 'svg' || tagName === 'math') && currentNode.querySelectorAll('p, br, form, table').length !== 0) { + _forceRemove(currentNode); + return true; + } + + /* Detect mXSS attempts abusing namespace confusion */ + if (!_isNode(currentNode.firstElementChild) && (!_isNode(currentNode.content) || !_isNode(currentNode.content.firstElementChild)) && regExpTest(/<[!/\w]/g, currentNode.innerHTML) && regExpTest(/<[!/\w]/g, currentNode.textContent)) { + _forceRemove(currentNode); + return true; + } + /* Remove element if anything forbids its presence */ if (!ALLOWED_TAGS[tagName] || FORBID_TAGS[tagName]) { - /* Keep content except for black-listed elements */ + /* Keep content except for bad-listed elements */ if (KEEP_CONTENT && !FORBID_CONTENTS[tagName] && typeof currentNode.insertAdjacentHTML === 'function') { try { - currentNode.insertAdjacentHTML('AfterEnd', currentNode.innerHTML); - } catch (err) {} + var htmlToInsert = currentNode.innerHTML; + currentNode.insertAdjacentHTML('AfterEnd', trustedTypesPolicy ? trustedTypesPolicy.createHTML(htmlToInsert) : htmlToInsert); + } catch (_) {} } + _forceRemove(currentNode); return true; } - /* Convert markup to cover jQuery behavior */ - if (SAFE_FOR_JQUERY && !currentNode.firstElementChild && (!currentNode.content || !currentNode.content.firstElementChild) && /</g.test(currentNode.textContent)) { - DOMPurify.removed.push({ element: currentNode.cloneNode() }); - if (currentNode.innerHTML) { - currentNode.innerHTML = currentNode.innerHTML.replace(/</g, '<'); - } else { - currentNode.innerHTML = currentNode.textContent.replace(/</g, '<'); - } + /* Remove in case a noscript/noembed XSS is suspected */ + if ((tagName === 'noscript' || tagName === 'noembed') && regExpTest(/<\/no(script|embed)/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 = content.replace(MUSTACHE_EXPR$$1, ' '); - content = content.replace(ERB_EXPR$$1, ' '); + content = stringReplace(content, MUSTACHE_EXPR$$1, ' '); + content = stringReplace(content, ERB_EXPR$$1, ' '); if (currentNode.textContent !== content) { - DOMPurify.removed.push({ element: currentNode.cloneNode() }); + arrayPush(DOMPurify.removed, { element: currentNode.cloneNode() }); currentNode.textContent = content; } } @@ -584,54 +734,25 @@ function createDOMPurify() { * @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; } - /* Sanitize attribute content to be template-safe */ - if (SAFE_FOR_TEMPLATES) { - value = value.replace(MUSTACHE_EXPR$$1, ' '); - value = value.replace(ERB_EXPR$$1, ' '); - } - /* Allow valid data-* attributes: At least one character after "-" (https://html.spec.whatwg.org/multipage/dom.html#embedding-custom-non-visible-data-with-the-data-*-attributes) XML-compatible (https://html.spec.whatwg.org/multipage/infrastructure.html#xml-compatible and http://www.w3.org/TR/xml/#d0e804) We don't need to check the value; it's always URI safe. */ - if (ALLOW_DATA_ATTR && DATA_ATTR$$1.test(lcName)) { - // This attribute is safe - } else if (ALLOW_ARIA_ATTR && ARIA_ATTR$$1.test(lcName)) { - // This attribute is safe - /* Otherwise, check the name is permitted */ - } else if (!ALLOWED_ATTR[lcName] || FORBID_ATTR[lcName]) { + if (ALLOW_DATA_ATTR && regExpTest(DATA_ATTR$$1, lcName)) ; else if (ALLOW_ARIA_ATTR && regExpTest(ARIA_ATTR$$1, lcName)) ; else if (!ALLOWED_ATTR[lcName] || FORBID_ATTR[lcName]) { return false; /* Check value is safe. First, is attr inert? If so, is safe */ - } else if (URI_SAFE_ATTRIBUTES[lcName]) { - // This attribute is safe - /* Check no script, data or unknown possibly unsafe URI - unless we know URI values are safe for that attribute */ - } else if (IS_ALLOWED_URI$$1.test(value.replace(ATTR_WHITESPACE$$1, ''))) { - // This attribute is safe - /* Keep image data URIs alive if src/xlink:href is allowed */ - /* Further prevent gadget XSS for dynamically built script tags */ - } else if ((lcName === 'src' || lcName === 'xlink:href') && lcTag !== 'script' && value.indexOf('data:') === 0 && DATA_URI_TAGS[lcTag]) { - // This attribute is safe - /* Allow unknown protocols: This provides support for links that - are handled by protocol handlers which may be unknown ahead of - time, e.g. fb:, spotify: */ - } else if (ALLOW_UNKNOWN_PROTOCOLS && !IS_SCRIPT_OR_DATA$$1.test(value.replace(ATTR_WHITESPACE$$1, ''))) { - // This attribute is safe - /* Check for binary attributes */ - // eslint-disable-next-line no-negated-condition - } else if (!value) { - // Binary attributes are safe at this point - /* Anything else, presume unsafe, do not add it back */ - } else { + } 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) ; else { return false; } + return true; }; @@ -643,14 +764,12 @@ function createDOMPurify() { * @protect removeAttribute * @protect setAttribute * - * @param {Node} node to sanitize + * @param {Node} currentNode to sanitize */ - // eslint-disable-next-line complexity var _sanitizeAttributes = function _sanitizeAttributes(currentNode) { var attr = void 0; var value = void 0; var lcName = void 0; - var idAttr = void 0; var l = void 0; /* Execute a hook if present */ _executeHook('beforeSanitizeAttributes', currentNode, null); @@ -678,48 +797,41 @@ function createDOMPurify() { name = _attr.name, namespaceURI = _attr.namespaceURI; - value = attr.value.trim(); - lcName = name.toLowerCase(); + value = stringTrim(attr.value); + lcName = stringToLowerCase(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; - - /* Remove attribute */ - // Safari (iOS + Mac), last tested v8.0.5, crashes if you try to - // remove a "name" attribute from an <img> tag that has an "id" - // attribute at the time. - if (lcName === 'name' && currentNode.nodeName === 'IMG' && attributes.id) { - idAttr = attributes.id; - attributes = Array.prototype.slice.apply(attributes); - _removeAttribute('id', currentNode); - _removeAttribute(name, currentNode); - if (attributes.indexOf(idAttr) > l) { - currentNode.setAttribute('id', idAttr.value); - } - } else if ( - // This works around a bug in Safari, where input[type=file] - // cannot be dynamically set after type has been removed - currentNode.nodeName === 'INPUT' && lcName === 'type' && value === 'file' && (ALLOWED_ATTR[lcName] || !FORBID_ATTR[lcName])) { + /* Did the hooks approve of the attribute? */ + if (hookEvent.forceKeepAttr) { continue; - } else { - // This avoids a crash in Safari v9.0 with double-ids. - // The trick is to first set the id to be empty and then to - // remove the attribute - if (name === 'id') { - currentNode.setAttribute(name, ''); - } - _removeAttribute(name, currentNode); } + /* 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 (regExpTest(/\/>/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, ' '); + } + /* Is `value` valid for this attribute? */ var lcTag = currentNode.nodeName.toLowerCase(); if (!_isValidAttribute(lcTag, lcName, value)) { @@ -734,8 +846,9 @@ function createDOMPurify() { /* Fallback to setAttribute() for browser-unrecognized namespaces e.g. "x-schema". */ currentNode.setAttribute(name, value); } - DOMPurify.removed.pop(); - } catch (err) {} + + arrayPop(DOMPurify.removed); + } catch (_) {} } /* Execute a hook if present */ @@ -801,11 +914,11 @@ function createDOMPurify() { if (typeof dirty !== 'string' && !_isNode(dirty)) { // eslint-disable-next-line no-negated-condition if (typeof dirty.toString !== 'function') { - throw new TypeError('toString is not a function'); + throw typeErrorCreate('toString is not a function'); } else { dirty = dirty.toString(); if (typeof dirty !== 'string') { - throw new TypeError('dirty is not a string, aborting'); + throw typeErrorCreate('dirty is not a string, aborting'); } } } @@ -816,10 +929,12 @@ function createDOMPurify() { if (typeof dirty === 'string') { return window.toStaticHTML(dirty); } + if (_isNode(dirty)) { return window.toStaticHTML(dirty.outerHTML); } } + return dirty; } @@ -831,23 +946,31 @@ function createDOMPurify() { /* Clean up removed elements */ DOMPurify.removed = []; - if (IN_PLACE) { - /* No special handling necessary for in-place sanitization */ - } else if (dirty instanceof Node) { + /* Check if dirty is correctly typed for IN_PLACE */ + if (typeof dirty === 'string') { + IN_PLACE = false; + } + + if (IN_PLACE) ; else if (dirty instanceof Node) { /* If dirty is a DOM element, append to an empty document to avoid elements being stripped by the parser */ - body = _initDocument('<!-->'); + body = _initDocument('<!---->'); importedNode = body.ownerDocument.importNode(dirty, true); if (importedNode.nodeType === 1 && importedNode.nodeName === 'BODY') { /* Node is already a body, use as is */ body = importedNode; + } else if (importedNode.nodeName === 'HTML') { + body = importedNode; } else { + // eslint-disable-next-line unicorn/prefer-node-append body.appendChild(importedNode); } } else { /* Exit directly if we have nothing to do */ - if (!RETURN_DOM && !WHOLE_DOCUMENT && dirty.indexOf('<') === -1) { - return dirty; + 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 */ @@ -855,7 +978,7 @@ function createDOMPurify() { /* Check we have a DOM node from the data */ if (!body) { - return RETURN_DOM ? null : ''; + return RETURN_DOM ? null : emptyHTML; } } @@ -890,6 +1013,8 @@ function createDOMPurify() { oldNode = currentNode; } + oldNode = null; + /* If we sanitized `dirty` in-place, return it. */ if (IN_PLACE) { return dirty; @@ -901,6 +1026,7 @@ function createDOMPurify() { returnNode = createDocumentFragment.call(body.ownerDocument); while (body.firstChild) { + // eslint-disable-next-line unicorn/prefer-node-append returnNode.appendChild(body.firstChild); } } else { @@ -908,18 +1034,28 @@ function createDOMPurify() { } if (RETURN_DOM_IMPORT) { - /* AdoptNode() is not used because internal state is not reset - (e.g. the past names map of a HTMLFormElement), this is safe - in theory but we would rather not risk another attack vector. - The state that is cloned by importNode() is explicitly defined - by the specs. */ + /* + 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; } - return WHOLE_DOCUMENT ? body.outerHTML : body.innerHTML; + var serializedHTML = WHOLE_DOCUMENT ? body.outerHTML : body.innerHTML; + + /* Sanitize final string template-safe */ + if (SAFE_FOR_TEMPLATES) { + serializedHTML = stringReplace(serializedHTML, MUSTACHE_EXPR$$1, ' '); + serializedHTML = stringReplace(serializedHTML, ERB_EXPR$$1, ' '); + } + + return trustedTypesPolicy && RETURN_TRUSTED_TYPE ? trustedTypesPolicy.createHTML(serializedHTML) : serializedHTML; }; /** @@ -958,8 +1094,9 @@ function createDOMPurify() { if (!CONFIG) { _parseConfig({}); } - var lcTag = tag.toLowerCase(); - var lcName = attr.toLowerCase(); + + var lcTag = stringToLowerCase(tag); + var lcName = stringToLowerCase(attr); return _isValidAttribute(lcTag, lcName, value); }; @@ -974,8 +1111,9 @@ function createDOMPurify() { if (typeof hookFunction !== 'function') { return; } + hooks[entryPoint] = hooks[entryPoint] || []; - hooks[entryPoint].push(hookFunction); + arrayPush(hooks[entryPoint], hookFunction); }; /** @@ -987,7 +1125,7 @@ function createDOMPurify() { */ DOMPurify.removeHook = function (entryPoint) { if (hooks[entryPoint]) { - hooks[entryPoint].pop(); + arrayPop(hooks[entryPoint]); } }; @@ -1018,3 +1156,4 @@ function createDOMPurify() { var purify = createDOMPurify(); export default purify; +//# sourceMappingURL=purify.es.js.map