damus.io

damus.io website
git clone git://jb55.com/damus.io
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commit 8b7db4486a0049654672446f605322f120ce8b2c
parent ff1d5cb609a56362de908d04b8816529d09107a4
Author: William Casarin <jb55@jb55.com>
Date:   Thu, 29 Jun 2023 10:23:28 -0700

web is defunct

Diffstat:
Mweb/css/styles.css | 15+++++++++++++++
Mweb/css/utils.css | 17+++++++++++++----
Mweb/css/vars.css | 23+++++++++++++++++++++++
Mweb/index.html | 172+------------------------------------------------------------------------------
Mweb/js/damus.js | 44+++++++++++++++++++++++++-------------------
Aweb/js/purify.js | 1698+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Mweb/js/ui/render.js | 96++++++++++++++++++++++++++++++++++++++-----------------------------------------
Aweb/js/ui/safe-html.js | 38++++++++++++++++++++++++++++++++++++++
Mweb/js/util.js | 10+++++-----
9 files changed, 1865 insertions(+), 248 deletions(-)

diff --git a/web/css/styles.css b/web/css/styles.css @@ -14,6 +14,13 @@ body { padding: 0; } +a { + color: var(--clrLink); +} +a:visited { + color: var(--clrLinkVisited); +} + #gsticker { position: absolute; top: 0; @@ -398,6 +405,8 @@ input[type="text"].cw { border: none; border-bottom: solid 2px var(--clrWarn); font-size: var(--fsReduced); + background: transparent; + color: var(--clrText); } /* Profile */ @@ -429,3 +438,9 @@ label[role="profile-nip5"] { display: block; } +@media (prefers-color-scheme: dark) { + .icon.svg { + filter: invert(1); + } +} + diff --git a/web/css/utils.css b/web/css/utils.css @@ -36,10 +36,10 @@ button.icon > img.icon { button.action { border: none; border-radius: 50px; - background: #171717; + background: var(--clrBgAction); padding: 10px 15px; font-size: 16px; - color: white; + color: var(--clrTextAction); font-weight: 800; } @@ -66,10 +66,10 @@ img.icon.small { top: 0; } .event-message { - background: #f4f4f4; + background: var(--clrEvMsg); padding: 7px; border-radius: 12px; - color: #444; + color: var(--clrTextEvMsg); } .flex { display: flex; @@ -81,3 +81,12 @@ img.invert { /* This class is good for white on black icons; */ filter: invert(1); } + +@media (prefers-color-scheme: dark) { + img.dark-invert { + filter: invert(1); + } + img.invert, img.svg.invert { + filter: initial; + } +} diff --git a/web/css/vars.css b/web/css/vars.css @@ -11,6 +11,14 @@ --clrTextLighter: #abb4ca; --clrHeart: #ff5050; --clrWarn: #fbc560; + --clrLink: blue; + --clrLinkVisited: purple; + + /* TODO I don't like these and simply did it for dark mode. To rename. */ + --clrEvMsg: #f4f4f4; + --clrTextEvMsg: #444; + --clrBgAction: #171717; + --clrTextAction: white; /* Font Sizes */ --fsSmall: 12px; @@ -32,3 +40,18 @@ --iconSize: 24px; --iconSizeSmall: 15px; } + +@media (prefers-color-scheme: dark) { + :root { + --clrBg: #0f0f0f; + --clrText: #fff; + --clrPanel: #1f1f1f; + --clrBorder: #282828; + --clrLink: #fb5151; + --clrLinkVisited: #f77; + --clrEvMsg: #353535; + --clrTextEvMsg: white; + --clrBgAction: white; + --clrTextAction: #1f1f1f; + } +} diff --git a/web/index.html b/web/index.html @@ -1,171 +1,3 @@ -<!DOCTYPE html> -<html lang="en"> - <head> - <meta charset="utf-8"> - <meta name="viewport" content="width=device-width, initial-scale=1"> - <title>Damus</title> - <link rel="stylesheet" href="css/vars.css?v=1"> - <link rel="stylesheet" href="css/utils.css?v=1"> - <link rel="stylesheet" href="css/styles.css?v=13"> - <link rel="stylesheet" href="css/responsive.css?v=10"> - <script defer src="js/util.js?v=5"></script> - <script defer src="js/ui/util.js?v=8"></script> - <script defer src="js/ui/render.js?v=15"></script> - <script defer src="js/noble-secp256k1.js?v=1"></script> - <script defer src="js/bech32.js?v=1"></script> - <script defer src="js/nostr.js?v=7"></script> - <script defer src="js/damus.js?v=92"></script> - </head> - <body> - <script> - // This is our main entry. - // https://developer.mozilla.org/en-US/docs/Web/API/Window/DOMContentLoaded_event - addEventListener('DOMContentLoaded', (ev) => { - damus_web_init() - }); - </script> - <div id="gsticker" title="This is alpha software.">αlpha</div> +Damus Web is down because there is someone trying to exploit browser loopholes to steal private keys. - <nav id="gnav" class=""> - <button class="icon" role="open-gnav" title="Open Menu" onclick="toggle_gnav(this)"> - <img class="icon svg invert" src="icon/logo.svg"/> - </button> - <button class="icon" role="home" title="Home" onclick="switch_view('home')"> - <img class="icon svg invert" src="icon/home.svg"/> - </button> - <button class="icon" role="explore" title="Explore" onclick="switch_view('explore')"> - <img class="icon svg invert" src="icon/explore.svg"/> - </button> - <button class="icon" role="notifications" title="Notifications" onclick="switch_view('notifications')"> - <img class="icon svg invert" src="icon/notifications.svg"/> - <div class="new-notifications hide"></div> - </button> - <button class="icon" role="sign-out" title="Sign Out" onclick="press_logout()"> - <img class="icon svg invert" src="icon/sign-out.svg"/> - </button> - </nav> - - <div id="container"> - <div class="flex-fill vertical-hide"></div> - <div id="nav" class="flex-noshrink vertical-hide"> - <div data-active="home"> - <div id="app-icon-logo"> - <img class="icon svg" title="Damus" src="icon/logo-inverted.svg"/> - </div> - <button role="home" class="nav icon" - title="Home" onclick="switch_view('home')"> - <img class="icon svg inactive" src="icon/home.svg"/> - <img class="icon svg active" src="icon/home-active.svg"/> - </button> - <button role="explore" class="nav icon" - title="Explore" onclick="switch_view('explore')"> - <img class="icon svg inactive" src="icon/explore.svg"/> - <img class="icon svg active" src="icon/explore-active.svg"/> - </button> - <button role="notifications" class="nav icon" - title="Notifications" onclick="switch_view('notifications')"> - <img class="icon svg inactive" src="icon/notifications.svg"/> - <img class="icon svg active" src="icon/notifications-active.svg"/> - <div class="new-notifications hide"></div> - </button> - <button title="Sign Out" class="nav icon" onclick="press_logout()"> - <img class="icon svg" src="icon/sign-out.svg"/> - </button> - </div> - </div> - <div id="view"> - <div id="home-view"> - <header> - <label>Home</label> - </header> - <div id="newpost"> - <div class="my-userpic vertical-hide"> - <!-- To be loaded dynamically. --> - </div> - <div> - <textarea placeholder="What's up?" - oninput="post_input_changed(this)" - class="post-input" id="post-input"></textarea> - <div class="post-tools"> - <input id="content-warning-input" class="cw hide" type="text" placeholder="Reason"/> - <button title="Mark this message as sensitive." - onclick="toggle_cw(this)" class="cw icon"> - <img class="icon small" src="icon/content-warning.svg"/> - </button> - <button onclick="send_post(this)" class="action" - role="send" id="post-button" disabled>Send</button> - </div> - </div> - </div> - <div class="events"></div> - </div> - <div id="explore-view" class="hide"> - <header> - <label>Explore</label> - </header> - <div class="events"></div> - </div> - <div id="notifications-view" class="hide"> - <header> - <label>Notifications</label> - </header> - <div class="events"></div> - </div> - <div id="thread-view" class="hide"> - <header> - <label>Thread</label> - </header> - <div class="events"></div> - </div> - <div id="profile-view" class="hide"> - <header> - <label role="profile-name">Profile</label> - </header> - <div role="profile-info" class="bottom-border"> - <div class="flex"> - <img role="profile-image" class="pfp jumbo" src="" /> - <div class="profile-tools"> - <!-- - <button class="icon" title="Message User" role="message-user"> - <img class="icon" src="icon/message-user.svg"/></button> - --> - <button class="icon" role="copy-pk" - data-pk="" onclick="click_copy_pk(this)" title="Copy Public Key"> - <img class="icon" src="icon/pubkey.svg"/></button> - <button class="action" role="follow-user" data-pk="" - onclick="click_toggle_follow_user(this)">Follow</button> - </div> - </div> - <div> - <label role="profile-nip5"></label> - <p role="profile-desc"></p> - </div> - </div> - <div class="events"></div> - </div> - </div> - <div class="flex-fill vertical-hide"></div> - </div> - - <div class="modal closed" id="reply-modal"> - <div id="reply-modal-content" class="modal-content"> - <header> - <label>Reply To</label> - <button class="icon" onclick="close_reply()"> - <img class="icon" src="icon/close-modal.svg"/> - </button> - </header> - <div id="replying-to"></div> - <div id="replybox"> - <textarea id="reply-content" class="post-input" oninput="post_input_changed(this)" - placeholder="Write your reply here..."></textarea> - <div class="post-tools"> - <button id="reply-button" class="action" onclick="do_send_reply()"> - Reply - </button> - </div> - </div> - </div> - </div> - </body> -</html> +I would not recommend using a web client at this time. Damus iOS is not affected. diff --git a/web/js/damus.js b/web/js/damus.js @@ -235,21 +235,12 @@ function process_reaction_event(model, ev) function process_chatroom_event(model, ev) { try { - model.chatrooms[ev.id] = JSON.parse(ev.content) + model.chatrooms[ev.id] = sanitize_obj(JSON.parse(ev.content)) } catch (err) { log_debug("error processing chatroom creation event", ev, err) } } -function process_json_content(ev) -{ - try { - ev.json_content = JSON.parse(ev.content) - } catch(e) { - log_debug("error parsing json content for", ev) - } -} - function process_deletion_event(model, ev) { for (const tag of ev.tags) { @@ -752,6 +743,14 @@ function handle_home_event(model, relay, sub_id, ev) { } } +function sanitize_obj(obj) { + for (const key of Object.keys(obj)) { + obj[key] = sanitize(obj[key]) + } + + return obj +} + function process_profile_event(model, ev) { const prev_ev = model.all_events[model.profile_events[ev.pubkey]] if (prev_ev && prev_ev.created_at > ev.created_at) @@ -759,7 +758,7 @@ function process_profile_event(model, ev) { model.profile_events[ev.pubkey] = ev.id try { - model.profiles[ev.pubkey] = JSON.parse(ev.content) + model.profiles[ev.pubkey] = sanitize_obj(JSON.parse(ev.content)) } catch(e) { log_debug("failed to parse profile contents", ev) } @@ -971,12 +970,14 @@ function handle_profiles_loaded(ids, model, view, relay) { model.pool.unsubscribe(ids.profiles, relay) //redraw_events(model, view) - //redraw_my_pfp(model) + redraw_my_pfp(model) const prefix = difficulty_to_prefix(model.pow) const fofs = Array.from(model.contacts.friend_of_friends) const standard_kinds = [1,42,5,6,7] - let pow_filter = {kinds: standard_kinds, limit: 50} + const now = new Date().getTime() / 1000; + + let pow_filter = {kinds: standard_kinds, limit: 50, until: now} if (model.pow > 0) pow_filter.ids = [ prefix ] @@ -989,9 +990,14 @@ function handle_profiles_loaded(ids, model, view, relay) { model.pool.subscribe(ids.explore, explore_filters, relay) } -function redraw_my_pfp(model) { - const html = render_pfp(model.pubkey, model.profiles[model.pubkey]); - document.querySelector(".my-userpic").innerHTML = html; +function redraw_my_pfp(model, force = false) { + const p = model.profiles[model.pubkey] + if (!p) return; + const html = render_pfp(model.pubkey, p); + const el = document.querySelector(".my-userpic") + if (!force && el.dataset.loaded) return; + el.dataset.loaded = true; + el.innerHTML = html; } function debounce(f, interval) { @@ -1524,7 +1530,7 @@ function get_content_warning(tags) { for (const tag of tags) { if (tag.length >= 1 && tag[0] === "content-warning") - return tag[1] || "" + return sanitize(tag[1]) || "" } return null @@ -1578,7 +1584,7 @@ function sanitize(content) { if (!content) return "" - return content.replaceAll("<","&lt;").replaceAll(">","&gt;") + return DOMPurify.sanitize(content) } function robohash(pk) { @@ -1590,7 +1596,7 @@ function get_picture(pk, profile) { return robohash(pk) if (profile.resolved_picture) return profile.resolved_picture - profile.resolved_picture = sanitize(profile.picture) || robohash(pk) + profile.resolved_picture = profile.picture || robohash(pk) return profile.resolved_picture } diff --git a/web/js/purify.js b/web/js/purify.js @@ -0,0 +1,1698 @@ +/*! @license DOMPurify 2.4.1 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/2.4.1/LICENSE */ + +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : + typeof define === 'function' && define.amd ? define(factory) : + (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.DOMPurify = factory()); +})(this, (function () { 'use strict'; + + function _typeof(obj) { + "@babel/helpers - typeof"; + + return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { + return typeof obj; + } : function (obj) { + return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; + }, _typeof(obj); + } + + function _setPrototypeOf(o, p) { + _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { + o.__proto__ = p; + return o; + }; + + return _setPrototypeOf(o, p); + } + + function _isNativeReflectConstruct() { + if (typeof Reflect === "undefined" || !Reflect.construct) return false; + if (Reflect.construct.sham) return false; + if (typeof Proxy === "function") return true; + + try { + Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); + return true; + } catch (e) { + return false; + } + } + + function _construct(Parent, args, Class) { + if (_isNativeReflectConstruct()) { + _construct = Reflect.construct; + } else { + _construct = function _construct(Parent, args, Class) { + var a = [null]; + a.push.apply(a, args); + var Constructor = Function.bind.apply(Parent, a); + var instance = new Constructor(); + if (Class) _setPrototypeOf(instance, Class.prototype); + return instance; + }; + } + + return _construct.apply(null, arguments); + } + + function _toConsumableArray(arr) { + return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); + } + + function _arrayWithoutHoles(arr) { + if (Array.isArray(arr)) return _arrayLikeToArray(arr); + } + + function _iterableToArray(iter) { + if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter); + } + + function _unsupportedIterableToArray(o, minLen) { + if (!o) return; + if (typeof o === "string") return _arrayLikeToArray(o, minLen); + var n = Object.prototype.toString.call(o).slice(8, -1); + if (n === "Object" && o.constructor) n = o.constructor.name; + if (n === "Map" || n === "Set") return Array.from(o); + if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); + } + + function _arrayLikeToArray(arr, len) { + if (len == null || len > arr.length) len = arr.length; + + for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; + + return arr2; + } + + function _nonIterableSpread() { + throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); + } + + var hasOwnProperty = Object.hasOwnProperty, + setPrototypeOf = Object.setPrototypeOf, + isFrozen = Object.isFrozen, + getPrototypeOf = Object.getPrototypeOf, + getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor; + var freeze = Object.freeze, + seal = Object.seal, + create = Object.create; // eslint-disable-line import/no-mutable-exports + + var _ref = typeof Reflect !== 'undefined' && Reflect, + apply = _ref.apply, + construct = _ref.construct; + + if (!apply) { + apply = function apply(fun, thisValue, args) { + return fun.apply(thisValue, args); + }; + } + + if (!freeze) { + freeze = function freeze(x) { + return x; + }; + } + + if (!seal) { + seal = function seal(x) { + return x; + }; + } + + if (!construct) { + construct = function construct(Func, args) { + return _construct(Func, _toConsumableArray(args)); + }; + } + + var arrayForEach = unapply(Array.prototype.forEach); + var arrayPop = unapply(Array.prototype.pop); + var arrayPush = unapply(Array.prototype.push); + var stringToLowerCase = unapply(String.prototype.toLowerCase); + var stringToString = unapply(String.prototype.toString); + var stringMatch = unapply(String.prototype.match); + var stringReplace = unapply(String.prototype.replace); + var stringIndexOf = unapply(String.prototype.indexOf); + var stringTrim = unapply(String.prototype.trim); + var regExpTest = unapply(RegExp.prototype.test); + var typeErrorCreate = unconstruct(TypeError); + function unapply(func) { + return function (thisArg) { + for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) { + args[_key - 1] = arguments[_key]; + } + + return apply(func, thisArg, args); + }; + } + function unconstruct(func) { + return function () { + for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) { + args[_key2] = arguments[_key2]; + } + + return construct(func, args); + }; + } + /* Add properties to a lookup table */ + + function addToSet(set, array, transformCaseFunc) { + 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])) { + 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 = '2.4.1'; + /** + * 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; + /* Output should be safe for common template engines. + * This means, DOMPurify removes data attributes, mustaches and ERB + */ + + var SAFE_FOR_TEMPLATES = false; + /* Decide if document with <html>... should be returned */ + + var WHOLE_DOCUMENT = false; + /* Track whether config is already set on this instance of DOMPurify. */ + + var SET_CONFIG = false; + /* Decide if all elements (e.g. style, script) must be children of + * document.body. By default, browsers might move them to document.head */ + + var FORCE_BODY = false; + /* Decide if a DOM `HTMLBodyElement` should be returned, instead of a html + * string (or a TrustedHTML object if Trusted Types are supported). + * If `WHOLE_DOCUMENT` is enabled a `HTMLHtmlElement` will be returned instead + */ + + var RETURN_DOM = false; + /* Decide if a DOM `DocumentFragment` should be returned, instead of a html + * string (or a TrustedHTML object if Trusted Types are supported) */ + + var RETURN_DOM_FRAGMENT = false; + /* 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 + + 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; + + 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 <svg>. If it happens via any other tag, then + // it should be killed. + if (parent.namespaceURI === HTML_NAMESPACE) { + return tagName === 'svg'; + } // The only way to switch from MathML to SVG is via` + // svg if parent is either <annotation-xml> or MathML + // text integration points. + + + if (parent.namespaceURI === MATHML_NAMESPACE) { + return tagName === 'svg' && (parentTagName === 'annotation-xml' || MATHML_TEXT_INTEGRATION_POINTS[parentTagName]); + } // We only allow elements that are defined in SVG + // spec. All others are disallowed in SVG namespace. + + + return Boolean(ALL_SVG_TAGS[tagName]); + } + + if (element.namespaceURI === MATHML_NAMESPACE) { + // The only way to switch from HTML namespace to MathML + // is via <math>. If it happens via any other tag, then + // it should be killed. + if (parent.namespaceURI === HTML_NAMESPACE) { + return tagName === 'math'; + } // The only way to switch from SVG to MathML is via + // <math> and HTML integration points + + + if (parent.namespaceURI === SVG_NAMESPACE) { + return tagName === 'math' && HTML_INTEGRATION_POINTS[parentTagName]; + } // We only allow elements that are defined in MathML + // spec. All others are disallowed in MathML namespace. + + + return Boolean(ALL_MATHML_TAGS[tagName]); + } + + if (element.namespaceURI === HTML_NAMESPACE) { + // The only way to switch from SVG to HTML is via + // HTML integration points, and from MathML to HTML + // is via MathML text integration points + if (parent.namespaceURI === SVG_NAMESPACE && !HTML_INTEGRATION_POINTS[parentTagName]) { + return false; + } + + if (parent.namespaceURI === MATHML_NAMESPACE && !MATHML_TEXT_INTEGRATION_POINTS[parentTagName]) { + return false; + } // We disallow tags that are specific for MathML + // or SVG and should never appear in HTML namespace + + + return !ALL_MATHML_TAGS[tagName] && (COMMON_SVG_AND_HTML_ELEMENTS[tagName] || !ALL_SVG_TAGS[tagName]); + } // For XHTML and XML documents that support custom namespaces + + + if (PARSER_MEDIA_TYPE === 'application/xhtml+xml' && ALLOWED_NAMESPACES[element.namespaceURI]) { + return true; + } // The code should never reach this place (this means + // that the element somehow got namespace that is not + // HTML, SVG, MathML or allowed via ALLOWED_NAMESPACES). + // Return false just in case. + + + return false; + }; + /** + * _forceRemove + * + * @param {Node} node a DOM node + */ + + + var _forceRemove = function _forceRemove(node) { + arrayPush(DOMPurify.removed, { + element: node + }); + + try { + // eslint-disable-next-line unicorn/prefer-dom-node-remove + node.parentNode.removeChild(node); + } catch (_) { + try { + node.outerHTML = emptyHTML; + } catch (_) { + node.remove(); + } + } + }; + /** + * _removeAttribute + * + * @param {String} name an Attribute name + * @param {Node} node a DOM node + */ + + + var _removeAttribute = function _removeAttribute(name, node) { + try { + arrayPush(DOMPurify.removed, { + attribute: node.getAttributeNode(name), + from: node + }); + } catch (_) { + arrayPush(DOMPurify.removed, { + attribute: null, + from: node + }); + } + + node.removeAttribute(name); // We void attribute values for unremovable "is"" attributes + + if (name === 'is' && !ALLOWED_ATTR[name]) { + if (RETURN_DOM || RETURN_DOM_FRAGMENT) { + try { + _forceRemove(node); + } catch (_) {} + } else { + try { + node.setAttribute(name, ''); + } catch (_) {} + } + } + }; + /** + * _initDocument + * + * @param {String} dirty a string of dirty markup + * @return {Document} a DOM, filled with the dirty markup + */ + + + var _initDocument = function _initDocument(dirty) { + /* Create a HTML document */ + var doc; + var leadingWhitespace; + + if (FORCE_BODY) { + dirty = '<remove></remove>' + dirty; + } else { + /* If FORCE_BODY isn't used, leading whitespace needs to be preserved manually */ + var matches = stringMatch(dirty, /^[\r\n\t ]+/); + leadingWhitespace = matches && matches[0]; + } + + if (PARSER_MEDIA_TYPE === 'application/xhtml+xml' && NAMESPACE === HTML_NAMESPACE) { + // Root of XHTML doc must contain xmlns declaration (see https://www.w3.org/TR/xhtml1/normative.html#strict) + dirty = '<html xmlns="http://www.w3.org/1999/xhtml"><head></head><body>' + dirty + '</body></html>'; + } + + var dirtyPayload = trustedTypesPolicy ? trustedTypesPolicy.createHTML(dirty) : dirty; + /* + * Use the DOMParser API by default, fallback later if needs be + * DOMParser not work for svg when has multiple root element. + */ + + if (NAMESPACE === HTML_NAMESPACE) { + try { + doc = new DOMParser().parseFromString(dirtyPayload, PARSER_MEDIA_TYPE); + } catch (_) {} + } + /* Use createHTMLDocument in case DOMParser is not available */ + + + if (!doc || !doc.documentElement) { + doc = implementation.createDocument(NAMESPACE, 'template', null); + + try { + doc.documentElement.innerHTML = IS_EMPTY_INPUT ? '' : 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(/<template/i, currentNode.innerHTML)) { + _forceRemove(currentNode); + + return true; + } + /* Remove element if anything forbids its presence */ + + + if (!ALLOWED_TAGS[tagName] || FORBID_TAGS[tagName]) { + /* Check if we have a custom element to handle */ + if (!FORBID_TAGS[tagName] && _basicCustomElementTest(tagName)) { + if (CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof RegExp && regExpTest(CUSTOM_ELEMENT_HANDLING.tagNameCheck, tagName)) return false; + if (CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof Function && CUSTOM_ELEMENT_HANDLING.tagNameCheck(tagName)) return false; + } + /* Keep content except for bad-listed elements */ + + + if (KEEP_CONTENT && !FORBID_CONTENTS[tagName]) { + var parentNode = getParentNode(currentNode) || currentNode.parentNode; + var childNodes = getChildNodes(currentNode) || currentNode.childNodes; + + if (childNodes && parentNode) { + var childCount = childNodes.length; + + for (var i = childCount - 1; i >= 0; --i) { + parentNode.insertBefore(cloneNode(childNodes[i], true), getNextSibling(currentNode)); + } + } + } + + _forceRemove(currentNode); + + return true; + } + /* Check whether element has a valid namespace */ + + + if (currentNode instanceof Element && !_checkValidNamespace(currentNode)) { + _forceRemove(currentNode); + + return true; + } + + if ((tagName === 'noscript' || tagName === 'noembed') && 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 = stringReplace(content, MUSTACHE_EXPR$1, ' '); + content = stringReplace(content, ERB_EXPR$1, ' '); + content = stringReplace(content, TMPLIT_EXPR$1, ' '); + + if (currentNode.textContent !== content) { + arrayPush(DOMPurify.removed, { + element: currentNode.cloneNode() + }); + currentNode.textContent = content; + } + } + /* Execute a hook if present */ + + + _executeHook('afterSanitizeElements', currentNode, null); + + return false; + }; + /** + * _isValidAttribute + * + * @param {string} lcTag Lowercase tag name of containing element. + * @param {string} lcName Lowercase attribute name. + * @param {string} value Attribute value. + * @return {Boolean} Returns true if `value` is valid, otherwise false. + */ + // eslint-disable-next-line complexity + + + var _isValidAttribute = function _isValidAttribute(lcTag, lcName, value) { + /* Make sure attribute cannot clobber */ + if (SANITIZE_DOM && (lcName === 'id' || lcName === 'name') && (value in document || value in formElement)) { + return false; + } + /* Allow valid data-* attributes: At least one character after "-" + (https://html.spec.whatwg.org/multipage/dom.html#embedding-custom-non-visible-data-with-the-data-*-attributes) + XML-compatible (https://html.spec.whatwg.org/multipage/infrastructure.html#xml-compatible and http://www.w3.org/TR/xml/#d0e804) + We don't need to check the value; it's always URI safe. */ + + + if (ALLOW_DATA_ATTR && !FORBID_ATTR[lcName] && regExpTest(DATA_ATTR$1, lcName)) ; else if (ALLOW_ARIA_ATTR && regExpTest(ARIA_ATTR$1, lcName)) ; else if (!ALLOWED_ATTR[lcName] || FORBID_ATTR[lcName]) { + if ( // First condition does a very basic check if a) it's basically a valid custom element tagname AND + // b) if the tagName passes whatever the user has configured for CUSTOM_ELEMENT_HANDLING.tagNameCheck + // and c) if the attribute name passes whatever the user has configured for CUSTOM_ELEMENT_HANDLING.attributeNameCheck + _basicCustomElementTest(lcTag) && (CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof RegExp && regExpTest(CUSTOM_ELEMENT_HANDLING.tagNameCheck, lcTag) || CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof Function && CUSTOM_ELEMENT_HANDLING.tagNameCheck(lcTag)) && (CUSTOM_ELEMENT_HANDLING.attributeNameCheck instanceof RegExp && regExpTest(CUSTOM_ELEMENT_HANDLING.attributeNameCheck, lcName) || CUSTOM_ELEMENT_HANDLING.attributeNameCheck instanceof Function && CUSTOM_ELEMENT_HANDLING.attributeNameCheck(lcName)) || // Alternative, second condition checks if it's an `is`-attribute, AND + // the value passes whatever the user has configured for CUSTOM_ELEMENT_HANDLING.tagNameCheck + lcName === 'is' && CUSTOM_ELEMENT_HANDLING.allowCustomizedBuiltInElements && (CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof RegExp && regExpTest(CUSTOM_ELEMENT_HANDLING.tagNameCheck, value) || CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof Function && CUSTOM_ELEMENT_HANDLING.tagNameCheck(value))) ; else { + return false; + } + /* Check value is safe. First, is attr inert? If so, is safe */ + + } else if (URI_SAFE_ATTRIBUTES[lcName]) ; else if (regExpTest(IS_ALLOWED_URI$1, stringReplace(value, ATTR_WHITESPACE$1, ''))) ; else if ((lcName === 'src' || lcName === 'xlink:href' || lcName === 'href') && lcTag !== 'script' && stringIndexOf(value, 'data:') === 0 && DATA_URI_TAGS[lcTag]) ; else if (ALLOW_UNKNOWN_PROTOCOLS && !regExpTest(IS_SCRIPT_OR_DATA$1, stringReplace(value, ATTR_WHITESPACE$1, ''))) ; else if (!value) ; else { + return false; + } + + return true; + }; + /** + * _basicCustomElementCheck + * checks if at least one dash is included in tagName, and it's not the first char + * for more sophisticated checking see https://github.com/sindresorhus/validate-element-name + * @param {string} tagName name of the tag of the node to sanitize + */ + + + var _basicCustomElementTest = function _basicCustomElementTest(tagName) { + return tagName.indexOf('-') > 0; + }; + /** + * _sanitizeAttributes + * + * @protect attributes + * @protect nodeName + * @protect removeAttribute + * @protect setAttribute + * + * @param {Node} currentNode to sanitize + */ + + + var _sanitizeAttributes = function _sanitizeAttributes(currentNode) { + var attr; + var value; + var lcName; + var l; + /* Execute a hook if present */ + + _executeHook('beforeSanitizeAttributes', currentNode, null); + + var attributes = currentNode.attributes; + /* Check if we have attributes; if not we might have a text node */ + + if (!attributes) { + return; + } + + var hookEvent = { + attrName: '', + attrValue: '', + keepAttr: true, + allowedAttributes: ALLOWED_ATTR + }; + l = attributes.length; + /* Go backwards over all attributes; safely remove bad ones */ + + while (l--) { + attr = attributes[l]; + var _attr = attr, + name = _attr.name, + namespaceURI = _attr.namespaceURI; + value = name === 'value' ? attr.value : stringTrim(attr.value); + lcName = transformCaseFunc(name); + /* Execute a hook if present */ + + hookEvent.attrName = lcName; + hookEvent.attrValue = value; + hookEvent.keepAttr = true; + hookEvent.forceKeepAttr = undefined; // Allows developers to see this is a property they can set + + _executeHook('uponSanitizeAttribute', currentNode, hookEvent); + + value = hookEvent.attrValue; + /* Did the hooks approve of the attribute? */ + + if (hookEvent.forceKeepAttr) { + continue; + } + /* Remove attribute */ + + + _removeAttribute(name, currentNode); + /* Did the hooks approve of the attribute? */ + + + if (!hookEvent.keepAttr) { + continue; + } + /* Work around a security issue in jQuery 3.0 */ + + + if (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, ' '); + value = stringReplace(value, TMPLIT_EXPR$1, ' '); + } + /* Is `value` valid for this attribute? */ + + + var lcTag = transformCaseFunc(currentNode.nodeName); + + if (!_isValidAttribute(lcTag, lcName, value)) { + continue; + } + /* Full DOM Clobbering protection via namespace isolation, + * Prefix id and name attributes with `user-content-` + */ + + + if (SANITIZE_NAMED_PROPS && (lcName === 'id' || lcName === 'name')) { + // Remove the attribute with this value + _removeAttribute(name, currentNode); // Prefix the value and later re-create the attribute with the sanitized value + + + value = SANITIZE_NAMED_PROPS_PREFIX + value; + } + /* Handle attributes that require Trusted Types */ + + + if (trustedTypesPolicy && _typeof(trustedTypes) === 'object' && typeof trustedTypes.getAttributeType === 'function') { + if (namespaceURI) ; else { + switch (trustedTypes.getAttributeType(lcTag, lcName)) { + case 'TrustedHTML': + value = trustedTypesPolicy.createHTML(value); + break; + + case 'TrustedScriptURL': + value = trustedTypesPolicy.createScriptURL(value); + break; + } + } + } + /* Handle invalid data-* attribute set by try-catching it */ + + + try { + if (namespaceURI) { + currentNode.setAttributeNS(namespaceURI, name, value); + } else { + /* Fallback to setAttribute() for browser-unrecognized namespaces e.g. "x-schema". */ + currentNode.setAttribute(name, value); + } + + arrayPop(DOMPurify.removed); + } catch (_) {} + } + /* Execute a hook if present */ + + + _executeHook('afterSanitizeAttributes', currentNode, null); + }; + /** + * _sanitizeShadowDOM + * + * @param {DocumentFragment} fragment to iterate over recursively + */ + + + var _sanitizeShadowDOM = function _sanitizeShadowDOM(fragment) { + var shadowNode; + + var shadowIterator = _createIterator(fragment); + /* Execute a hook if present */ + + + _executeHook('beforeSanitizeShadowDOM', fragment, null); + + while (shadowNode = shadowIterator.nextNode()) { + /* Execute a hook if present */ + _executeHook('uponSanitizeShadowNode', shadowNode, null); + /* Sanitize tags and elements */ + + + if (_sanitizeElements(shadowNode)) { + continue; + } + /* Deep shadow DOM detected */ + + + if (shadowNode.content instanceof DocumentFragment) { + _sanitizeShadowDOM(shadowNode.content); + } + /* Check attributes, sanitize if necessary */ + + + _sanitizeAttributes(shadowNode); + } + /* Execute a hook if present */ + + + _executeHook('afterSanitizeShadowDOM', fragment, null); + }; + /** + * Sanitize + * Public method providing core sanitation functionality + * + * @param {String|Node} dirty string or DOM node + * @param {Object} configuration object + */ + // eslint-disable-next-line complexity + + + DOMPurify.sanitize = function (dirty) { + var cfg = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {}; + var body; + var importedNode; + var currentNode; + var oldNode; + var returnNode; + /* Make sure we have a string to sanitize. + DO NOT return early, as this will return the wrong type if + the user has requested a DOM object rather than a string */ + + IS_EMPTY_INPUT = !dirty; + + if (IS_EMPTY_INPUT) { + dirty = '<!-->'; + } + /* Stringify, in case dirty is an object */ + + + if (typeof dirty !== 'string' && !_isNode(dirty)) { + // eslint-disable-next-line no-negated-condition + if (typeof dirty.toString !== 'function') { + throw typeErrorCreate('toString is not a function'); + } else { + dirty = dirty.toString(); + + if (typeof dirty !== 'string') { + throw typeErrorCreate('dirty is not a string, aborting'); + } + } + } + /* Check we can run. Otherwise fall back or ignore */ + + + if (!DOMPurify.isSupported) { + if (_typeof(window.toStaticHTML) === 'object' || typeof window.toStaticHTML === 'function') { + if (typeof dirty === 'string') { + return window.toStaticHTML(dirty); + } + + if (_isNode(dirty)) { + return window.toStaticHTML(dirty.outerHTML); + } + } + + return dirty; + } + /* Assign config vars */ + + + if (!SET_CONFIG) { + _parseConfig(cfg); + } + /* Clean up removed elements */ + + + DOMPurify.removed = []; + /* Check if dirty is correctly typed for IN_PLACE */ + + if (typeof dirty === 'string') { + IN_PLACE = false; + } + + if (IN_PLACE) { + /* Do some early pre-sanitization to avoid unsafe root nodes */ + if (dirty.nodeName) { + var tagName = transformCaseFunc(dirty.nodeName); + + if (!ALLOWED_TAGS[tagName] || FORBID_TAGS[tagName]) { + throw typeErrorCreate('root node is forbidden and cannot be sanitized in-place'); + } + } + } else if (dirty instanceof Node) { + /* If dirty is a DOM element, append to an empty document to avoid + elements being stripped by the parser */ + body = _initDocument('<!---->'); + importedNode = body.ownerDocument.importNode(dirty, true); + + if (importedNode.nodeType === 1 && importedNode.nodeName === 'BODY') { + /* Node is already a body, use as is */ + body = importedNode; + } else if (importedNode.nodeName === 'HTML') { + body = importedNode; + } else { + // eslint-disable-next-line unicorn/prefer-dom-node-append + body.appendChild(importedNode); + } + } else { + /* Exit directly if we have nothing to do */ + if (!RETURN_DOM && !SAFE_FOR_TEMPLATES && !WHOLE_DOCUMENT && // eslint-disable-next-line unicorn/prefer-includes + dirty.indexOf('<') === -1) { + return trustedTypesPolicy && RETURN_TRUSTED_TYPE ? trustedTypesPolicy.createHTML(dirty) : dirty; + } + /* Initialize the document to work on */ + + + body = _initDocument(dirty); + /* Check we have a DOM node from the data */ + + if (!body) { + return RETURN_DOM ? null : RETURN_TRUSTED_TYPE ? emptyHTML : ''; + } + } + /* Remove first element node (ours) if FORCE_BODY is set */ + + + if (body && FORCE_BODY) { + _forceRemove(body.firstChild); + } + /* Get node iterator */ + + + var nodeIterator = _createIterator(IN_PLACE ? dirty : body); + /* Now start iterating over the created document */ + + + while (currentNode = nodeIterator.nextNode()) { + /* Fix IE's strange behavior with manipulated textNodes #89 */ + if (currentNode.nodeType === 3 && currentNode === oldNode) { + continue; + } + /* Sanitize tags and elements */ + + + if (_sanitizeElements(currentNode)) { + continue; + } + /* Shadow DOM detected, sanitize it */ + + + if (currentNode.content instanceof DocumentFragment) { + _sanitizeShadowDOM(currentNode.content); + } + /* Check attributes, sanitize if necessary */ + + + _sanitizeAttributes(currentNode); + + oldNode = currentNode; + } + + oldNode = null; + /* If we sanitized `dirty` in-place, return it. */ + + if (IN_PLACE) { + return dirty; + } + /* Return sanitized string or DOM */ + + + if (RETURN_DOM) { + if (RETURN_DOM_FRAGMENT) { + returnNode = createDocumentFragment.call(body.ownerDocument); + + while (body.firstChild) { + // eslint-disable-next-line unicorn/prefer-dom-node-append + returnNode.appendChild(body.firstChild); + } + } else { + returnNode = body; + } + + if (ALLOWED_ATTR.shadowroot) { + /* + AdoptNode() is not used because internal state is not reset + (e.g. the past names map of a HTMLFormElement), this is safe + in theory but we would rather not risk another attack vector. + The state that is cloned by importNode() is explicitly defined + by the specs. + */ + returnNode = importNode.call(originalDocument, returnNode, true); + } + + return returnNode; + } + + var serializedHTML = WHOLE_DOCUMENT ? body.outerHTML : body.innerHTML; + /* Serialize doctype if allowed */ + + if (WHOLE_DOCUMENT && ALLOWED_TAGS['!doctype'] && body.ownerDocument && body.ownerDocument.doctype && body.ownerDocument.doctype.name && regExpTest(DOCTYPE_NAME, body.ownerDocument.doctype.name)) { + serializedHTML = '<!DOCTYPE ' + body.ownerDocument.doctype.name + '>\n' + serializedHTML; + } + /* Sanitize final string template-safe */ + + + if (SAFE_FOR_TEMPLATES) { + serializedHTML = stringReplace(serializedHTML, MUSTACHE_EXPR$1, ' '); + serializedHTML = stringReplace(serializedHTML, ERB_EXPR$1, ' '); + serializedHTML = stringReplace(serializedHTML, TMPLIT_EXPR$1, ' '); + } + + return trustedTypesPolicy && RETURN_TRUSTED_TYPE ? trustedTypesPolicy.createHTML(serializedHTML) : serializedHTML; + }; + /** + * Public method to set the configuration once + * setConfig + * + * @param {Object} cfg configuration object + */ + + + DOMPurify.setConfig = function (cfg) { + _parseConfig(cfg); + + SET_CONFIG = true; + }; + /** + * Public method to remove the configuration + * clearConfig + * + */ + + + DOMPurify.clearConfig = function () { + CONFIG = null; + SET_CONFIG = false; + }; + /** + * Public method to check if an attribute value is valid. + * Uses last set config, if any. Otherwise, uses config defaults. + * isValidAttribute + * + * @param {string} tag Tag name of containing element. + * @param {string} attr Attribute name. + * @param {string} value Attribute value. + * @return {Boolean} Returns true if `value` is valid. Otherwise, returns false. + */ + + + DOMPurify.isValidAttribute = function (tag, attr, value) { + /* Initialize shared config vars if necessary. */ + if (!CONFIG) { + _parseConfig({}); + } + + var lcTag = transformCaseFunc(tag); + var lcName = transformCaseFunc(attr); + return _isValidAttribute(lcTag, lcName, value); + }; + /** + * AddHook + * Public method to add DOMPurify hooks + * + * @param {String} entryPoint entry point for the hook to add + * @param {Function} hookFunction function to execute + */ + + + DOMPurify.addHook = function (entryPoint, hookFunction) { + if (typeof hookFunction !== 'function') { + return; + } + + hooks[entryPoint] = hooks[entryPoint] || []; + arrayPush(hooks[entryPoint], hookFunction); + }; + /** + * RemoveHook + * Public method to remove a DOMPurify hook at a given entryPoint + * (pops it from the stack of hooks if more are present) + * + * @param {String} entryPoint entry point for the hook to remove + * @return {Function} removed(popped) hook + */ + + + DOMPurify.removeHook = function (entryPoint) { + if (hooks[entryPoint]) { + return arrayPop(hooks[entryPoint]); + } + }; + /** + * RemoveHooks + * Public method to remove all DOMPurify hooks at a given entryPoint + * + * @param {String} entryPoint entry point for the hooks to remove + */ + + + DOMPurify.removeHooks = function (entryPoint) { + if (hooks[entryPoint]) { + hooks[entryPoint] = []; + } + }; + /** + * RemoveAllHooks + * Public method to remove all DOMPurify hooks + * + */ + + + DOMPurify.removeAllHooks = function () { + hooks = {}; + }; + + return DOMPurify; + } + + var purify = createDOMPurify(); + + return purify; + +})); +//# sourceMappingURL=purify.js.map diff --git a/web/js/ui/render.js b/web/js/ui/render.js @@ -22,21 +22,21 @@ function render_events(damus, view) { function render_reply_line_top(has_top_line) { const classes = has_top_line ? "" : "invisible" - return `<div class="line-top ${classes}"></div>` + return html`<div class="line-top ${classes}"></div>` } function render_reply_line_bot() { - return `<div class="line-bot"></div>` + return html`<div class="line-bot"></div>` } function render_thread_collapsed(model, ev, opts) { if (opts.is_composing) return "" - return `<div onclick="expand_thread('${ev.id}')" class="thread-collapsed"> + return html`<div onclick="expand_thread('${ev.id}')" class="thread-collapsed"> <div class="thread-summary clickable event-message"> Read More - <img class="icon small" src="icon/read-more.svg"/> + <img class="icon svg small" src="icon/read-more.svg"/> </div> </div>` } @@ -65,7 +65,7 @@ function render_replying_to_chat(damus, ev) { const names = pks.map(pk => render_mentioned_name(pk, damus.profiles[pk])).join(", ") const to_users = pks.length === 0 ? "" : ` to ${names}` - return `<div class="replying-to">replying${to_users} in <span class="chatroom-name">${roomname}</span></div>` + return html`<div class="replying-to">replying${to_users} in <span class="chatroom-name">${roomname}</span></div>` } function render_replying_to(model, ev) { @@ -79,16 +79,16 @@ function render_replying_to(model, ev) { if (pubkeys.length === 0 && ev.refs.reply) { const replying_to = model.all_events[ev.refs.reply] if (!replying_to) - return `<div class="replying-to small-txt">reply to ${ev.refs.reply}</div>` + return html`<div class="replying-to small-txt">reply to ${ev.refs.reply}</div>` pubkeys = [replying_to.pubkey] } const names = ev.refs.pubkeys.map(pk => render_mentioned_name(pk, model.profiles[pk])).join(", ") - return ` + return html` <span class="replying-to small-txt"> - replying to ${names} + replying to $${names} </span> ` } @@ -117,16 +117,16 @@ function render_comment_body(damus, ev, opts) { const bar = !can_reply(ev) || opts.nobar? "" : render_action_bar(damus, ev, can_delete) const show_media = !opts.is_composing - return ` + return html` <div> - ${render_replying_to(damus, ev)} - ${render_shared_by(ev, opts)} + $${render_replying_to(damus, ev)} + $${render_shared_by(ev, opts)} </div> <p> - ${format_content(ev, show_media)} + $${format_content(ev, show_media)} </p> - ${render_reactions(damus, ev)} - ${bar} + $${render_reactions(damus, ev)} + $${bar} ` } @@ -135,23 +135,23 @@ function render_shared_by(ev, opts) { if (!b) { return "" } - return ` + return html` <div class="shared-by"> - Shared by ${render_name(b.pubkey, b.profile)} + Shared by $${render_name(b.pubkey, b.profile)} </div> ` } function render_deleted_comment_body(ev, deleted) { if (deleted.content) { - return ` + return html` <div class="deleted-comment event-message"> This content was deleted with reason: <div class="quote">${format_content(deleted, false)}</div> </div> ` } - return ` + return html` <div class="deleted-comment event-message"> This content was deleted. </div> @@ -185,24 +185,24 @@ function render_event(damus, view, ev, opts={}) { const has_top_line = replied_events !== "" const border_bottom = opts.is_composing || has_bot_line ? "" : "bottom-border"; - return ` - ${replied_events} + return html` + $${replied_events} <div id="ev${ev.id}" class="event ${border_bottom}"> <div class="userpic"> - ${render_reply_line_top(has_top_line)} - ${deleted ? render_deleted_pfp() : render_pfp(ev.pubkey, profile)} - ${reply_line_bot} + $${render_reply_line_top(has_top_line)} + $${deleted ? render_deleted_pfp() : render_pfp(ev.pubkey, profile)} + $${reply_line_bot} </div> <div class="event-content"> <div class="info"> - ${render_name(ev.pubkey, profile)} + $${render_name(ev.pubkey, profile)} <span class="timestamp">${delta}</span> <button class="icon" title="View Thread" role="view-event" data-eid="${ev.id}" onclick="click_event(this)"> - <img class="icon small" src="icon/open-thread.svg"/> + <img class="icon svg small" src="icon/open-thread.svg"/> </button> </div> <div class="comment"> - ${deleted ? render_deleted_comment_body(ev, deleted) : render_comment_body(damus, ev, opts)} + $${deleted ? render_deleted_comment_body(ev, deleted) : render_comment_body(damus, ev, opts)} </div> </div> </div> @@ -212,9 +212,9 @@ function render_event(damus, view, ev, opts={}) { function render_react_onclick(our_pubkey, reacting_to, emoji, reactions) { const reaction = reactions[our_pubkey] if (!reaction) { - return `onclick="send_reply('${emoji}', '${reacting_to}')"` + return html`onclick="send_reply('${emoji}', '${reacting_to}')"` } else { - return `onclick="delete_post('${reaction.id}')"` + return html`onclick="delete_post('${reaction.id}')"` } } @@ -223,12 +223,12 @@ function render_reaction_group(model, emoji, reactions, reacting_to) { let onclick = render_react_onclick(model.pubkey, reacting_to.id, emoji, reactions) - return ` - <span ${onclick} class="reaction-group clickable"> + return html` + <span $${onclick} class="reaction-group clickable"> <span class="reaction-emoji"> ${emoji} </span> - ${pfps.join("\n")} + $${pfps.join("\n")} </span> ` } @@ -245,25 +245,25 @@ function render_reaction(model, reaction) { function render_action_bar(damus, ev, can_delete) { let delete_html = "" if (can_delete) - delete_html = ` + delete_html = html` <button class="icon" title="Delete" onclick="delete_post_confirm('${ev.id}')"> - <img class="icon small" src="icon/event-delete.svg"/> + <img class="icon svg small" src="icon/event-delete.svg"/> </button>` const groups = get_reactions(damus, ev.id) const like = "❤️" const likes = groups[like] || {} const react_onclick = render_react_onclick(damus.pubkey, ev.id, like, likes) - return ` + return html` <div class="action-bar"> <button class="icon" title="Reply" onclick="reply_to('${ev.id}')"> - <img class="icon small" src="icon/event-reply.svg"/> + <img class="icon svg small" src="icon/event-reply.svg"/> </button> - <button class="icon react heart" ${react_onclick} title="Like"> - <img class="icon small" src="icon/event-like.svg"/> + <button class="icon react heart" $${react_onclick} title="Like"> + <img class="icon svg small" src="icon/event-like.svg"/> </button> <!--<button class="icon" title="Share" onclick=""><i class="fa fa-fw fa-link"></i></a>--> - ${delete_html} + $${delete_html} <!--<button class="icon" title="View raw Nostr event." onclick=""><i class="fa-solid fa-fw fa-code"></i></a>--> </div> ` @@ -277,9 +277,9 @@ function render_reactions(model, ev) { str += render_reaction_group(model, emoji, groups[emoji], ev) } - return ` + return html` <div class="reactions"> - ${str} + $${str} </div> ` } @@ -290,15 +290,11 @@ function render_reactions(model, ev) { * that is best suited for the profile. */ function render_name_plain(profile=DEFAULT_PROFILE) { - if (profile.sanitized_name) - return profile.sanitized_name - const display_name = profile.display_name || profile.user const username = profile.name || "anon" const name = display_name || username - profile.sanitized_name = sanitize(name) - return profile.sanitized_name + return profile.name } function render_pubkey(pk) @@ -317,7 +313,7 @@ function render_mentioned_name(pk, profile) { } function render_name(pk, profile, prefix="") { - return ` + return html` <span class="username clickable" onclick="show_profile('${pk}')" data-pk="${pk}">${prefix}${render_name_plain(profile)} </span>` @@ -329,13 +325,13 @@ function render_deleted_name() { function render_pfp(pk, profile) { const name = render_name_plain(profile) - return `<img class="pfp" title="${name}" + return html`<img class="pfp" title="${name}" onerror="this.onerror=null;this.src='${robohash(pk)}';" src="${get_picture(pk, profile)}">` } function render_deleted_pfp() { - return ` + return html` <div class="pfp deleted"> <i class="fa-solid fa-fw fa-ghost"></i> </div>` @@ -343,10 +339,10 @@ function render_deleted_pfp() { function render_loading_spinner() { - return ` + return html` <div class="loading-events"> <div class="loader" title="Loading..."> - <img src="icon/loader-fragment.svg"/> + <img class="dark-invert" src="icon/loader-fragment.svg"/> </div> </div>` } diff --git a/web/js/ui/safe-html.js b/web/js/ui/safe-html.js @@ -0,0 +1,38 @@ +// https://github.com/AntonioVdlC/html-template-tag + +const chars = { + "&": "&amp;", + ">": "&gt;", + "<": "&lt;", + '"': "&quot;", + "'": "&#39;", + "`": "&#96;", +}; + +// Dynamically create a RegExp from the `chars` object +const re = new RegExp(Object.keys(chars).join("|"), "g"); + +// Return the escaped string +function escape(str) { + return String(str).replace(re, (match) => chars[match]); +} + +function html( + literals, + ...substs +) { + return literals.raw.reduce((acc, lit, i) => { + let subst = substs[i - 1]; + if (Array.isArray(subst)) { + subst = subst.join(""); + } else if (literals.raw[i - 1] && literals.raw[i - 1].endsWith("$")) { + // If the interpolation is preceded by a dollar sign, + // substitution is considered safe and will not be escaped + acc = acc.slice(0, -1); + } else { + subst = escape(subst); + } + + return acc + subst + lit; + }); +} diff --git a/web/js/util.js b/web/js/util.js @@ -166,23 +166,23 @@ function linkify(text, show_media) { return text.replace(URL_REGEX, function(match, p1, p2, p3) { const url = p2+p3 const parsed = new URL(url) - let html; + let markup; if (show_media && is_img_url(parsed.pathname)) { - html = ` + markup = html` <a target="_blank" href="${url}"> <img class="inline-img" src="${url}"/> </a> `; } else if (show_media && is_video_url(parsed.pathname)) { - html = ` + markup = html` <video controls class="inline-img" /> <source src="${url}"> </video> `; } else { - html = `<a target="_blank" rel="noopener noreferrer" href="${url}">${url}</a>`; + markup = html`<a target="_blank" rel="noopener noreferrer" href="${url}">${url}</a>`; } - return p1+html; + return p1+markup; }) }