From 78f4cb39ab3753cef0a6d16d9b3d842e8c3c78a1 Mon Sep 17 00:00:00 2001 From: sijanec Date: Sun, 30 Aug 2020 20:15:23 +0200 Subject: minified after dev on meals --- dist/js/lib/xss.js | 1695 +++------------------------------------------------- 1 file changed, 83 insertions(+), 1612 deletions(-) (limited to 'dist/js/lib/xss.js') diff --git a/dist/js/lib/xss.js b/dist/js/lib/xss.js index e0a6ba0..f2030f0 100755 --- a/dist/js/lib/xss.js +++ b/dist/js/lib/xss.js @@ -1,1613 +1,84 @@ -(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o - */ -var FilterCSS = require("cssfilter").FilterCSS; -var getDefaultCSSWhiteList = require("cssfilter").getDefaultWhiteList; -var _ = require("./util"); - -function getDefaultWhiteList() { - return { - a: ["target", "href", "title"], - abbr: ["title"], - address: [], - area: ["shape", "coords", "href", "alt"], - article: [], - aside: [], - audio: ["autoplay", "controls", "loop", "preload", "src"], - b: [], - bdi: ["dir"], - bdo: ["dir"], - big: [], - blockquote: ["cite"], - br: [], - caption: [], - center: [], - cite: [], - code: [], - col: ["align", "valign", "span", "width"], - colgroup: ["align", "valign", "span", "width"], - dd: [], - del: ["datetime"], - details: ["open"], - div: [], - dl: [], - dt: [], - em: [], - font: ["color", "size", "face"], - footer: [], - h1: [], - h2: [], - h3: [], - h4: [], - h5: [], - h6: [], - header: [], - hr: [], - i: [], - img: ["src", "alt", "title", "width", "height"], - ins: ["datetime"], - li: [], - mark: [], - nav: [], - ol: [], - p: [], - pre: [], - s: [], - section: [], - small: [], - span: [], - sub: [], - sup: [], - strong: [], - table: ["width", "border", "align", "valign"], - tbody: ["align", "valign"], - td: ["width", "rowspan", "colspan", "align", "valign"], - tfoot: ["align", "valign"], - th: ["width", "rowspan", "colspan", "align", "valign"], - thead: ["align", "valign"], - tr: ["rowspan", "align", "valign"], - tt: [], - u: [], - ul: [], - video: ["autoplay", "controls", "loop", "preload", "src", "height", "width"] - }; -} - -var defaultCSSFilter = new FilterCSS(); - -/** - * default onTag function - * - * @param {String} tag - * @param {String} html - * @param {Object} options - * @return {String} - */ -function onTag(tag, html, options) { - // do nothing -} - -/** - * default onIgnoreTag function - * - * @param {String} tag - * @param {String} html - * @param {Object} options - * @return {String} - */ -function onIgnoreTag(tag, html, options) { - // do nothing -} - -/** - * default onTagAttr function - * - * @param {String} tag - * @param {String} name - * @param {String} value - * @return {String} - */ -function onTagAttr(tag, name, value) { - // do nothing -} - -/** - * default onIgnoreTagAttr function - * - * @param {String} tag - * @param {String} name - * @param {String} value - * @return {String} - */ -function onIgnoreTagAttr(tag, name, value) { - // do nothing -} - -/** - * default escapeHtml function - * - * @param {String} html - */ -function escapeHtml(html) { - return html.replace(REGEXP_LT, "<").replace(REGEXP_GT, ">"); -} - -/** - * default safeAttrValue function - * - * @param {String} tag - * @param {String} name - * @param {String} value - * @param {Object} cssFilter - * @return {String} - */ -function safeAttrValue(tag, name, value, cssFilter) { - // unescape attribute value firstly - value = friendlyAttrValue(value); - - if (name === "href" || name === "src") { - // filter `href` and `src` attribute - // only allow the value that starts with `http://` | `https://` | `mailto:` | `/` | `#` | and others - value = _.trim(value); - if (value === "#") return "#"; - if ( - !( - value.substr(0, 7) === "http://" || - value.substr(0, 8) === "https://" || - value.substr(0, 6) === "ftp://" || - value.substr(0, 7) === "mailto:" || - value.substr(0, 4) === "tel:" || - value.substr(0, 11) === "data:image/" || - value.substr(0, 2) === "./" || - value.substr(0, 3) === "../" || - value[0] === "#" || - value[0] === "/" - ) - ) { - return ""; - } - } else if (name === "background") { - // filter `background` attribute (maybe no use) - // `javascript:` - REGEXP_DEFAULT_ON_TAG_ATTR_4.lastIndex = 0; - if (REGEXP_DEFAULT_ON_TAG_ATTR_4.test(value)) { - return ""; - } - } else if (name === "style") { - // `expression()` - REGEXP_DEFAULT_ON_TAG_ATTR_7.lastIndex = 0; - if (REGEXP_DEFAULT_ON_TAG_ATTR_7.test(value)) { - return ""; - } - // `url()` - REGEXP_DEFAULT_ON_TAG_ATTR_8.lastIndex = 0; - if (REGEXP_DEFAULT_ON_TAG_ATTR_8.test(value)) { - REGEXP_DEFAULT_ON_TAG_ATTR_4.lastIndex = 0; - if (REGEXP_DEFAULT_ON_TAG_ATTR_4.test(value)) { - return ""; - } - } - if (cssFilter !== false) { - cssFilter = cssFilter || defaultCSSFilter; - value = cssFilter.process(value); - } - } - - // escape `<>"` before returns - value = escapeAttrValue(value); - return value; -} - -// RegExp list -var REGEXP_LT = //g; -var REGEXP_QUOTE = /"/g; -var REGEXP_QUOTE_2 = /"/g; -var REGEXP_ATTR_VALUE_1 = /&#([a-zA-Z0-9]*);?/gim; -var REGEXP_ATTR_VALUE_COLON = /:?/gim; -var REGEXP_ATTR_VALUE_NEWLINE = /&newline;?/gim; -var REGEXP_DEFAULT_ON_TAG_ATTR_3 = /\/\*|\*\//gm; -var REGEXP_DEFAULT_ON_TAG_ATTR_4 = /((j\s*a\s*v\s*a|v\s*b|l\s*i\s*v\s*e)\s*s\s*c\s*r\s*i\s*p\s*t\s*|m\s*o\s*c\s*h\s*a)\:/gi; -var REGEXP_DEFAULT_ON_TAG_ATTR_5 = /^[\s"'`]*(d\s*a\s*t\s*a\s*)\:/gi; -var REGEXP_DEFAULT_ON_TAG_ATTR_6 = /^[\s"'`]*(d\s*a\s*t\s*a\s*)\:\s*image\//gi; -var REGEXP_DEFAULT_ON_TAG_ATTR_7 = /e\s*x\s*p\s*r\s*e\s*s\s*s\s*i\s*o\s*n\s*\(.*/gi; -var REGEXP_DEFAULT_ON_TAG_ATTR_8 = /u\s*r\s*l\s*\(.*/gi; - -/** - * escape doube quote - * - * @param {String} str - * @return {String} str - */ -function escapeQuote(str) { - return str.replace(REGEXP_QUOTE, """); -} - -/** - * unescape double quote - * - * @param {String} str - * @return {String} str - */ -function unescapeQuote(str) { - return str.replace(REGEXP_QUOTE_2, '"'); -} - -/** - * escape html entities - * - * @param {String} str - * @return {String} - */ -function escapeHtmlEntities(str) { - return str.replace(REGEXP_ATTR_VALUE_1, function replaceUnicode(str, code) { - return code[0] === "x" || code[0] === "X" - ? String.fromCharCode(parseInt(code.substr(1), 16)) - : String.fromCharCode(parseInt(code, 10)); - }); -} - -/** - * escape html5 new danger entities - * - * @param {String} str - * @return {String} - */ -function escapeDangerHtml5Entities(str) { - return str - .replace(REGEXP_ATTR_VALUE_COLON, ":") - .replace(REGEXP_ATTR_VALUE_NEWLINE, " "); -} - -/** - * clear nonprintable characters - * - * @param {String} str - * @return {String} - */ -function clearNonPrintableCharacter(str) { - var str2 = ""; - for (var i = 0, len = str.length; i < len; i++) { - str2 += str.charCodeAt(i) < 32 ? " " : str.charAt(i); - } - return _.trim(str2); -} - -/** - * get friendly attribute value - * - * @param {String} str - * @return {String} - */ -function friendlyAttrValue(str) { - str = unescapeQuote(str); - str = escapeHtmlEntities(str); - str = escapeDangerHtml5Entities(str); - str = clearNonPrintableCharacter(str); - return str; -} - -/** - * unescape attribute value - * - * @param {String} str - * @return {String} - */ -function escapeAttrValue(str) { - str = escapeQuote(str); - str = escapeHtml(str); - return str; -} - -/** - * `onIgnoreTag` function for removing all the tags that are not in whitelist - */ -function onIgnoreTagStripAll() { - return ""; -} - -/** - * remove tag body - * specify a `tags` list, if the tag is not in the `tags` list then process by the specify function (optional) - * - * @param {array} tags - * @param {function} next - */ -function StripTagBody(tags, next) { - if (typeof next !== "function") { - next = function() {}; - } - - var isRemoveAllTag = !Array.isArray(tags); - function isRemoveTag(tag) { - if (isRemoveAllTag) return true; - return _.indexOf(tags, tag) !== -1; - } - - var removeList = []; - var posStart = false; - - return { - onIgnoreTag: function(tag, html, options) { - if (isRemoveTag(tag)) { - if (options.isClosing) { - var ret = "[/removed]"; - var end = options.position + ret.length; - removeList.push([ - posStart !== false ? posStart : options.position, - end - ]); - posStart = false; - return ret; - } else { - if (!posStart) { - posStart = options.position; - } - return "[removed]"; - } - } else { - return next(tag, html, options); - } - }, - remove: function(html) { - var rethtml = ""; - var lastPos = 0; - _.forEach(removeList, function(pos) { - rethtml += html.slice(lastPos, pos[0]); - lastPos = pos[1]; - }); - rethtml += html.slice(lastPos); - return rethtml; - } - }; -} - -/** - * remove html comments - * - * @param {String} html - * @return {String} - */ -function stripCommentTag(html) { - return html.replace(STRIP_COMMENT_TAG_REGEXP, ""); -} -var STRIP_COMMENT_TAG_REGEXP = //g; - -/** - * remove invisible characters - * - * @param {String} html - * @return {String} - */ -function stripBlankChar(html) { - var chars = html.split(""); - chars = chars.filter(function(char) { - var c = char.charCodeAt(0); - if (c === 127) return false; - if (c <= 31) { - if (c === 10 || c === 13) return true; - return false; - } - return true; - }); - return chars.join(""); -} - -exports.whiteList = getDefaultWhiteList(); -exports.getDefaultWhiteList = getDefaultWhiteList; -exports.onTag = onTag; -exports.onIgnoreTag = onIgnoreTag; -exports.onTagAttr = onTagAttr; -exports.onIgnoreTagAttr = onIgnoreTagAttr; -exports.safeAttrValue = safeAttrValue; -exports.escapeHtml = escapeHtml; -exports.escapeQuote = escapeQuote; -exports.unescapeQuote = unescapeQuote; -exports.escapeHtmlEntities = escapeHtmlEntities; -exports.escapeDangerHtml5Entities = escapeDangerHtml5Entities; -exports.clearNonPrintableCharacter = clearNonPrintableCharacter; -exports.friendlyAttrValue = friendlyAttrValue; -exports.escapeAttrValue = escapeAttrValue; -exports.onIgnoreTagStripAll = onIgnoreTagStripAll; -exports.StripTagBody = StripTagBody; -exports.stripCommentTag = stripCommentTag; -exports.stripBlankChar = stripBlankChar; -exports.cssFilter = defaultCSSFilter; -exports.getDefaultCSSWhiteList = getDefaultCSSWhiteList; - -},{"./util":4,"cssfilter":8}],2:[function(require,module,exports){ -/** - * xss - * - * @author Zongmin Lei - */ - -var DEFAULT = require("./default"); -var parser = require("./parser"); -var FilterXSS = require("./xss"); - -/** - * filter xss function - * - * @param {String} html - * @param {Object} options { whiteList, onTag, onTagAttr, onIgnoreTag, onIgnoreTagAttr, safeAttrValue, escapeHtml } - * @return {String} - */ -function filterXSS(html, options) { - var xss = new FilterXSS(options); - return xss.process(html); -} - -exports = module.exports = filterXSS; -exports.filterXSS = filterXSS; -exports.FilterXSS = FilterXSS; -for (var i in DEFAULT) exports[i] = DEFAULT[i]; -for (var i in parser) exports[i] = parser[i]; - -// using `xss` on the browser, output `filterXSS` to the globals -if (typeof window !== "undefined") { - window.filterXSS = module.exports; -} - -// using `xss` on the WebWorker, output `filterXSS` to the globals -function isWorkerEnv() { - return typeof self !== 'undefined' && typeof DedicatedWorkerGlobalScope !== 'undefined' && self instanceof DedicatedWorkerGlobalScope; -} -if (isWorkerEnv()) { - self.filterXSS = module.exports; -} - -},{"./default":1,"./parser":3,"./xss":5}],3:[function(require,module,exports){ -/** - * Simple HTML Parser - * - * @author Zongmin Lei - */ - -var _ = require("./util"); - -/** - * get tag name - * - * @param {String} html e.g. '' - * @return {String} - */ -function getTagName(html) { - var i = _.spaceIndex(html); - if (i === -1) { - var tagName = html.slice(1, -1); - } else { - var tagName = html.slice(1, i + 1); - } - tagName = _.trim(tagName).toLowerCase(); - if (tagName.slice(0, 1) === "/") tagName = tagName.slice(1); - if (tagName.slice(-1) === "/") tagName = tagName.slice(0, -1); - return tagName; -} - -/** - * is close tag? - * - * @param {String} html 如：'' - * @return {Boolean} - */ -function isClosing(html) { - return html.slice(0, 2) === "") { - rethtml += escapeHtml(html.slice(lastPos, tagStart)); - currentHtml = html.slice(tagStart, currentPos + 1); - currentTagName = getTagName(currentHtml); - rethtml += onTag( - tagStart, - rethtml.length, - currentTagName, - currentHtml, - isClosing(currentHtml) - ); - lastPos = currentPos + 1; - tagStart = false; - continue; - } - if ((c === '"' || c === "'") && html.charAt(currentPos - 1) === "=") { - quoteStart = c; - continue; - } - } else { - if (c === quoteStart) { - quoteStart = false; - continue; - } - } - } - } - if (lastPos < html.length) { - rethtml += escapeHtml(html.substr(lastPos)); - } - - return rethtml; -} - -var REGEXP_ILLEGAL_ATTR_NAME = /[^a-zA-Z0-9_:\.\-]/gim; - -/** - * parse input attributes and returns processed attributes - * - * @param {String} html e.g. `href="#" target="_blank"` - * @param {Function} onAttr e.g. `function (name, value)` - * @return {String} - */ -function parseAttr(html, onAttr) { - "use strict"; - - var lastPos = 0; - var retAttrs = []; - var tmpName = false; - var len = html.length; - - function addAttr(name, value) { - name = _.trim(name); - name = name.replace(REGEXP_ILLEGAL_ATTR_NAME, "").toLowerCase(); - if (name.length < 1) return; - var ret = onAttr(name, value || ""); - if (ret) retAttrs.push(ret); - } - - // 逐个分析字符 - for (var i = 0; i < len; i++) { - var c = html.charAt(i); - var v, j; - if (tmpName === false && c === "=") { - tmpName = html.slice(lastPos, i); - lastPos = i + 1; - continue; - } - if (tmpName !== false) { - if ( - i === lastPos && - (c === '"' || c === "'") && - html.charAt(i - 1) === "=" - ) { - j = html.indexOf(c, i + 1); - if (j === -1) { - break; - } else { - v = _.trim(html.slice(lastPos + 1, j)); - addAttr(tmpName, v); - tmpName = false; - i = j; - lastPos = i + 1; - continue; - } - } - } - if (/\s|\n|\t/.test(c)) { - html = html.replace(/\s|\n|\t/g, " "); - if (tmpName === false) { - j = findNextEqual(html, i); - if (j === -1) { - v = _.trim(html.slice(lastPos, i)); - addAttr(v); - tmpName = false; - lastPos = i + 1; - continue; - } else { - i = j - 1; - continue; - } - } else { - j = findBeforeEqual(html, i - 1); - if (j === -1) { - v = _.trim(html.slice(lastPos, i)); - v = stripQuoteWrap(v); - addAttr(tmpName, v); - tmpName = false; - lastPos = i + 1; - continue; - } else { - continue; - } - } - } - } - - if (lastPos < html.length) { - if (tmpName === false) { - addAttr(html.slice(lastPos)); - } else { - addAttr(tmpName, stripQuoteWrap(_.trim(html.slice(lastPos)))); - } - } - - return _.trim(retAttrs.join(" ")); -} - -function findNextEqual(str, i) { - for (; i < str.length; i++) { - var c = str[i]; - if (c === " ") continue; - if (c === "=") return i; - return -1; - } -} - -function findBeforeEqual(str, i) { - for (; i > 0; i--) { - var c = str[i]; - if (c === " ") continue; - if (c === "=") return i; - return -1; - } -} - -function isQuoteWrapString(text) { - if ( - (text[0] === '"' && text[text.length - 1] === '"') || - (text[0] === "'" && text[text.length - 1] === "'") - ) { - return true; - } else { - return false; - } -} - -function stripQuoteWrap(text) { - if (isQuoteWrapString(text)) { - return text.substr(1, text.length - 2); - } else { - return text; - } -} - -exports.parseTag = parseTag; -exports.parseAttr = parseAttr; - -},{"./util":4}],4:[function(require,module,exports){ -module.exports = { - indexOf: function(arr, item) { - var i, j; - if (Array.prototype.indexOf) { - return arr.indexOf(item); - } - for (i = 0, j = arr.length; i < j; i++) { - if (arr[i] === item) { - return i; - } - } - return -1; - }, - forEach: function(arr, fn, scope) { - var i, j; - if (Array.prototype.forEach) { - return arr.forEach(fn, scope); - } - for (i = 0, j = arr.length; i < j; i++) { - fn.call(scope, arr[i], i, arr); - } - }, - trim: function(str) { - if (String.prototype.trim) { - return str.trim(); - } - return str.replace(/(^\s*)|(\s*$)/g, ""); - }, - spaceIndex: function(str) { - var reg = /\s|\n|\t/; - var match = reg.exec(str); - return match ? match.index : -1; - } -}; - -},{}],5:[function(require,module,exports){ -/** - * filter xss - * - * @author Zongmin Lei - */ - -var FilterCSS = require("cssfilter").FilterCSS; -var DEFAULT = require("./default"); -var parser = require("./parser"); -var parseTag = parser.parseTag; -var parseAttr = parser.parseAttr; -var _ = require("./util"); - -/** - * returns `true` if the input value is `undefined` or `null` - * - * @param {Object} obj - * @return {Boolean} - */ -function isNull(obj) { - return obj === undefined || obj === null; -} - -/** - * get attributes for a tag - * - * @param {String} html - * @return {Object} - * - {String} html - * - {Boolean} closing - */ -function getAttrs(html) { - var i = _.spaceIndex(html); - if (i === -1) { - return { - html: "", - closing: html[html.length - 2] === "/" - }; - } - html = _.trim(html.slice(i + 1, -1)); - var isClosing = html[html.length - 1] === "/"; - if (isClosing) html = _.trim(html.slice(0, -1)); - return { - html: html, - closing: isClosing - }; -} - -/** - * shallow copy - * - * @param {Object} obj - * @return {Object} - */ -function shallowCopyObject(obj) { - var ret = {}; - for (var i in obj) { - ret[i] = obj[i]; - } - return ret; -} - -/** - * FilterXSS class - * - * @param {Object} options - * whiteList, onTag, onTagAttr, onIgnoreTag, - * onIgnoreTagAttr, safeAttrValue, escapeHtml - * stripIgnoreTagBody, allowCommentTag, stripBlankChar - * css{whiteList, onAttr, onIgnoreAttr} `css=false` means don't use `cssfilter` - */ -function FilterXSS(options) { - options = shallowCopyObject(options || {}); - - if (options.stripIgnoreTag) { - if (options.onIgnoreTag) { - console.error( - 'Notes: cannot use these two options "stripIgnoreTag" and "onIgnoreTag" at the same time' - ); - } - options.onIgnoreTag = DEFAULT.onIgnoreTagStripAll; - } - - options.whiteList = options.whiteList || DEFAULT.whiteList; - options.onTag = options.onTag || DEFAULT.onTag; - options.onTagAttr = options.onTagAttr || DEFAULT.onTagAttr; - options.onIgnoreTag = options.onIgnoreTag || DEFAULT.onIgnoreTag; - options.onIgnoreTagAttr = options.onIgnoreTagAttr || DEFAULT.onIgnoreTagAttr; - options.safeAttrValue = options.safeAttrValue || DEFAULT.safeAttrValue; - options.escapeHtml = options.escapeHtml || DEFAULT.escapeHtml; - this.options = options; - - if (options.css === false) { - this.cssFilter = false; - } else { - options.css = options.css || {}; - this.cssFilter = new FilterCSS(options.css); - } -} - -/** - * start process and returns result - * - * @param {String} html - * @return {String} - */ -FilterXSS.prototype.process = function(html) { - // compatible with the input - html = html || ""; - html = html.toString(); - if (!html) return ""; - - var me = this; - var options = me.options; - var whiteList = options.whiteList; - var onTag = options.onTag; - var onIgnoreTag = options.onIgnoreTag; - var onTagAttr = options.onTagAttr; - var onIgnoreTagAttr = options.onIgnoreTagAttr; - var safeAttrValue = options.safeAttrValue; - var escapeHtml = options.escapeHtml; - var cssFilter = me.cssFilter; - - // remove invisible characters - if (options.stripBlankChar) { - html = DEFAULT.stripBlankChar(html); - } - - // remove html comments - if (!options.allowCommentTag) { - html = DEFAULT.stripCommentTag(html); - } - - // if enable stripIgnoreTagBody - var stripIgnoreTagBody = false; - if (options.stripIgnoreTagBody) { - var stripIgnoreTagBody = DEFAULT.StripTagBody( - options.stripIgnoreTagBody, - onIgnoreTag - ); - onIgnoreTag = stripIgnoreTagBody.onIgnoreTag; - } - - var retHtml = parseTag( - html, - function(sourcePosition, position, tag, html, isClosing) { - var info = { - sourcePosition: sourcePosition, - position: position, - isClosing: isClosing, - isWhite: whiteList.hasOwnProperty(tag) - }; - - // call `onTag()` - var ret = onTag(tag, html, info); - if (!isNull(ret)) return ret; - - if (info.isWhite) { - if (info.isClosing) { - return ""; - } - - var attrs = getAttrs(html); - var whiteAttrList = whiteList[tag]; - var attrsHtml = parseAttr(attrs.html, function(name, value) { - // call `onTagAttr()` - var isWhiteAttr = _.indexOf(whiteAttrList, name) !== -1; - var ret = onTagAttr(tag, name, value, isWhiteAttr); - if (!isNull(ret)) return ret; - - if (isWhiteAttr) { - // call `safeAttrValue()` - value = safeAttrValue(tag, name, value, cssFilter); - if (value) { - return name + '="' + value + '"'; - } else { - return name; - } - } else { - // call `onIgnoreTagAttr()` - var ret = onIgnoreTagAttr(tag, name, value, isWhiteAttr); - if (!isNull(ret)) return ret; - return; - } - }); - - // build new tag html - var html = "<" + tag; - if (attrsHtml) html += " " + attrsHtml; - if (attrs.closing) html += " /"; - html += ">"; - return html; - } else { - // call `onIgnoreTag()` - var ret = onIgnoreTag(tag, html, info); - if (!isNull(ret)) return ret; - return escapeHtml(html); - } - }, - escapeHtml - ); - - // if enable stripIgnoreTagBody - if (stripIgnoreTagBody) { - retHtml = stripIgnoreTagBody.remove(retHtml); - } - - return retHtml; -}; - -module.exports = FilterXSS; - -},{"./default":1,"./parser":3,"./util":4,"cssfilter":8}],6:[function(require,module,exports){ -/** - * cssfilter - * - * @author 老雷 - */ - -var DEFAULT = require('./default'); -var parseStyle = require('./parser'); -var _ = require('./util'); - - -/** - * 返回值是否为空 - * - * @param {Object} obj - * @return {Boolean} - */ -function isNull (obj) { - return (obj === undefined || obj === null); -} - -/** - * 浅拷贝对象 - * - * @param {Object} obj - * @return {Object} - */ -function shallowCopyObject (obj) { - var ret = {}; - for (var i in obj) { - ret[i] = obj[i]; - } - return ret; -} - -/** - * 创建CSS过滤器 - * - * @param {Object} options - * - {Object} whiteList - * - {Function} onAttr - * - {Function} onIgnoreAttr - * - {Function} safeAttrValue - */ -function FilterCSS (options) { - options = shallowCopyObject(options || {}); - options.whiteList = options.whiteList || DEFAULT.whiteList; - options.onAttr = options.onAttr || DEFAULT.onAttr; - options.onIgnoreAttr = options.onIgnoreAttr || DEFAULT.onIgnoreAttr; - options.safeAttrValue = options.safeAttrValue || DEFAULT.safeAttrValue; - this.options = options; -} - -FilterCSS.prototype.process = function (css) { - // 兼容各种奇葩输入 - css = css || ''; - css = css.toString(); - if (!css) return ''; - - var me = this; - var options = me.options; - var whiteList = options.whiteList; - var onAttr = options.onAttr; - var onIgnoreAttr = options.onIgnoreAttr; - var safeAttrValue = options.safeAttrValue; - - var retCSS = parseStyle(css, function (sourcePosition, position, name, value, source) { - - var check = whiteList[name]; - var isWhite = false; - if (check === true) isWhite = check; - else if (typeof check === 'function') isWhite = check(value); - else if (check instanceof RegExp) isWhite = check.test(value); - if (isWhite !== true) isWhite = false; - - // 如果过滤后 value 为空则直接忽略 - value = safeAttrValue(name, value); - if (!value) return; - - var opts = { - position: position, - sourcePosition: sourcePosition, - source: source, - isWhite: isWhite - }; - - if (isWhite) { - - var ret = onAttr(name, value, opts); - if (isNull(ret)) { - return name + ':' + value; - } else { - return ret; - } - - } else { - - var ret = onIgnoreAttr(name, value, opts); - if (!isNull(ret)) { - return ret; - } - - } - }); - - return retCSS; -}; - - -module.exports = FilterCSS; - -},{"./default":7,"./parser":9,"./util":10}],7:[function(require,module,exports){ -/** - * cssfilter - * - * @author 老雷 - */ - -function getDefaultWhiteList () { - // 白名单值说明： - // true: 允许该属性 - // Function: function (val) { } 返回true表示允许该属性，其他值均表示不允许 - // RegExp: regexp.test(val) 返回true表示允许该属性，其他值均表示不允许 - // 除上面列出的值外均表示不允许 - var whiteList = {}; - - whiteList['align-content'] = false; // default: auto - whiteList['align-items'] = false; // default: auto - whiteList['align-self'] = false; // default: auto - whiteList['alignment-adjust'] = false; // default: auto - whiteList['alignment-baseline'] = false; // default: baseline - whiteList['all'] = false; // default: depending on individual properties - whiteList['anchor-point'] = false; // default: none - whiteList['animation'] = false; // default: depending on individual properties - whiteList['animation-delay'] = false; // default: 0 - whiteList['animation-direction'] = false; // default: normal - whiteList['animation-duration'] = false; // default: 0 - whiteList['animation-fill-mode'] = false; // default: none - whiteList['animation-iteration-count'] = false; // default: 1 - whiteList['animation-name'] = false; // default: none - whiteList['animation-play-state'] = false; // default: running - whiteList['animation-timing-function'] = false; // default: ease - whiteList['azimuth'] = false; // default: center - whiteList['backface-visibility'] = false; // default: visible - whiteList['background'] = true; // default: depending on individual properties - whiteList['background-attachment'] = true; // default: scroll - whiteList['background-clip'] = true; // default: border-box - whiteList['background-color'] = true; // default: transparent - whiteList['background-image'] = true; // default: none - whiteList['background-origin'] = true; // default: padding-box - whiteList['background-position'] = true; // default: 0% 0% - whiteList['background-repeat'] = true; // default: repeat - whiteList['background-size'] = true; // default: auto - whiteList['baseline-shift'] = false; // default: baseline - whiteList['binding'] = false; // default: none - whiteList['bleed'] = false; // default: 6pt - whiteList['bookmark-label'] = false; // default: content() - whiteList['bookmark-level'] = false; // default: none - whiteList['bookmark-state'] = false; // default: open - whiteList['border'] = true; // default: depending on individual properties - whiteList['border-bottom'] = true; // default: depending on individual properties - whiteList['border-bottom-color'] = true; // default: current color - whiteList['border-bottom-left-radius'] = true; // default: 0 - whiteList['border-bottom-right-radius'] = true; // default: 0 - whiteList['border-bottom-style'] = true; // default: none - whiteList['border-bottom-width'] = true; // default: medium - whiteList['border-collapse'] = true; // default: separate - whiteList['border-color'] = true; // default: depending on individual properties - whiteList['border-image'] = true; // default: none - whiteList['border-image-outset'] = true; // default: 0 - whiteList['border-image-repeat'] = true; // default: stretch - whiteList['border-image-slice'] = true; // default: 100% - whiteList['border-image-source'] = true; // default: none - whiteList['border-image-width'] = true; // default: 1 - whiteList['border-left'] = true; // default: depending on individual properties - whiteList['border-left-color'] = true; // default: current color - whiteList['border-left-style'] = true; // default: none - whiteList['border-left-width'] = true; // default: medium - whiteList['border-radius'] = true; // default: 0 - whiteList['border-right'] = true; // default: depending on individual properties - whiteList['border-right-color'] = true; // default: current color - whiteList['border-right-style'] = true; // default: none - whiteList['border-right-width'] = true; // default: medium - whiteList['border-spacing'] = true; // default: 0 - whiteList['border-style'] = true; // default: depending on individual properties - whiteList['border-top'] = true; // default: depending on individual properties - whiteList['border-top-color'] = true; // default: current color - whiteList['border-top-left-radius'] = true; // default: 0 - whiteList['border-top-right-radius'] = true; // default: 0 - whiteList['border-top-style'] = true; // default: none - whiteList['border-top-width'] = true; // default: medium - whiteList['border-width'] = true; // default: depending on individual properties - whiteList['bottom'] = false; // default: auto - whiteList['box-decoration-break'] = true; // default: slice - whiteList['box-shadow'] = true; // default: none - whiteList['box-sizing'] = true; // default: content-box - whiteList['box-snap'] = true; // default: none - whiteList['box-suppress'] = true; // default: show - whiteList['break-after'] = true; // default: auto - whiteList['break-before'] = true; // default: auto - whiteList['break-inside'] = true; // default: auto - whiteList['caption-side'] = false; // default: top - whiteList['chains'] = false; // default: none - whiteList['clear'] = true; // default: none - whiteList['clip'] = false; // default: auto - whiteList['clip-path'] = false; // default: none - whiteList['clip-rule'] = false; // default: nonzero - whiteList['color'] = true; // default: implementation dependent - whiteList['color-interpolation-filters'] = true; // default: auto - whiteList['column-count'] = false; // default: auto - whiteList['column-fill'] = false; // default: balance - whiteList['column-gap'] = false; // default: normal - whiteList['column-rule'] = false; // default: depending on individual properties - whiteList['column-rule-color'] = false; // default: current color - whiteList['column-rule-style'] = false; // default: medium - whiteList['column-rule-width'] = false; // default: medium - whiteList['column-span'] = false; // default: none - whiteList['column-width'] = false; // default: auto - whiteList['columns'] = false; // default: depending on individual properties - whiteList['contain'] = false; // default: none - whiteList['content'] = false; // default: normal - whiteList['counter-increment'] = false; // default: none - whiteList['counter-reset'] = false; // default: none - whiteList['counter-set'] = false; // default: none - whiteList['crop'] = false; // default: auto - whiteList['cue'] = false; // default: depending on individual properties - whiteList['cue-after'] = false; // default: none - whiteList['cue-before'] = false; // default: none - whiteList['cursor'] = false; // default: auto - whiteList['direction'] = false; // default: ltr - whiteList['display'] = true; // default: depending on individual properties - whiteList['display-inside'] = true; // default: auto - whiteList['display-list'] = true; // default: none - whiteList['display-outside'] = true; // default: inline-level - whiteList['dominant-baseline'] = false; // default: auto - whiteList['elevation'] = false; // default: level - whiteList['empty-cells'] = false; // default: show - whiteList['filter'] = false; // default: none - whiteList['flex'] = false; // default: depending on individual properties - whiteList['flex-basis'] = false; // default: auto - whiteList['flex-direction'] = false; // default: row - whiteList['flex-flow'] = false; // default: depending on individual properties - whiteList['flex-grow'] = false; // default: 0 - whiteList['flex-shrink'] = false; // default: 1 - whiteList['flex-wrap'] = false; // default: nowrap - whiteList['float'] = false; // default: none - whiteList['float-offset'] = false; // default: 0 0 - whiteList['flood-color'] = false; // default: black - whiteList['flood-opacity'] = false; // default: 1 - whiteList['flow-from'] = false; // default: none - whiteList['flow-into'] = false; // default: none - whiteList['font'] = true; // default: depending on individual properties - whiteList['font-family'] = true; // default: implementation dependent - whiteList['font-feature-settings'] = true; // default: normal - whiteList['font-kerning'] = true; // default: auto - whiteList['font-language-override'] = true; // default: normal - whiteList['font-size'] = true; // default: medium - whiteList['font-size-adjust'] = true; // default: none - whiteList['font-stretch'] = true; // default: normal - whiteList['font-style'] = true; // default: normal - whiteList['font-synthesis'] = true; // default: weight style - whiteList['font-variant'] = true; // default: normal - whiteList['font-variant-alternates'] = true; // default: normal - whiteList['font-variant-caps'] = true; // default: normal - whiteList['font-variant-east-asian'] = true; // default: normal - whiteList['font-variant-ligatures'] = true; // default: normal - whiteList['font-variant-numeric'] = true; // default: normal - whiteList['font-variant-position'] = true; // default: normal - whiteList['font-weight'] = true; // default: normal - whiteList['grid'] = false; // default: depending on individual properties - whiteList['grid-area'] = false; // default: depending on individual properties - whiteList['grid-auto-columns'] = false; // default: auto - whiteList['grid-auto-flow'] = false; // default: none - whiteList['grid-auto-rows'] = false; // default: auto - whiteList['grid-column'] = false; // default: depending on individual properties - whiteList['grid-column-end'] = false; // default: auto - whiteList['grid-column-start'] = false; // default: auto - whiteList['grid-row'] = false; // default: depending on individual properties - whiteList['grid-row-end'] = false; // default: auto - whiteList['grid-row-start'] = false; // default: auto - whiteList['grid-template'] = false; // default: depending on individual properties - whiteList['grid-template-areas'] = false; // default: none - whiteList['grid-template-columns'] = false; // default: none - whiteList['grid-template-rows'] = false; // default: none - whiteList['hanging-punctuation'] = false; // default: none - whiteList['height'] = true; // default: auto - whiteList['hyphens'] = false; // default: manual - whiteList['icon'] = false; // default: auto - whiteList['image-orientation'] = false; // default: auto - whiteList['image-resolution'] = false; // default: normal - whiteList['ime-mode'] = false; // default: auto - whiteList['initial-letters'] = false; // default: normal - whiteList['inline-box-align'] = false; // default: last - whiteList['justify-content'] = false; // default: auto - whiteList['justify-items'] = false; // default: auto - whiteList['justify-self'] = false; // default: auto - whiteList['left'] = false; // default: auto - whiteList['letter-spacing'] = true; // default: normal - whiteList['lighting-color'] = true; // default: white - whiteList['line-box-contain'] = false; // default: block inline replaced - whiteList['line-break'] = false; // default: auto - whiteList['line-grid'] = false; // default: match-parent - whiteList['line-height'] = false; // default: normal - whiteList['line-snap'] = false; // default: none - whiteList['line-stacking'] = false; // default: depending on individual properties - whiteList['line-stacking-ruby'] = false; // default: exclude-ruby - whiteList['line-stacking-shift'] = false; // default: consider-shifts - whiteList['line-stacking-strategy'] = false; // default: inline-line-height - whiteList['list-style'] = true; // default: depending on individual properties - whiteList['list-style-image'] = true; // default: none - whiteList['list-style-position'] = true; // default: outside - whiteList['list-style-type'] = true; // default: disc - whiteList['margin'] = true; // default: depending on individual properties - whiteList['margin-bottom'] = true; // default: 0 - whiteList['margin-left'] = true; // default: 0 - whiteList['margin-right'] = true; // default: 0 - whiteList['margin-top'] = true; // default: 0 - whiteList['marker-offset'] = false; // default: auto - whiteList['marker-side'] = false; // default: list-item - whiteList['marks'] = false; // default: none - whiteList['mask'] = false; // default: border-box - whiteList['mask-box'] = false; // default: see individual properties - whiteList['mask-box-outset'] = false; // default: 0 - whiteList['mask-box-repeat'] = false; // default: stretch - whiteList['mask-box-slice'] = false; // default: 0 fill - whiteList['mask-box-source'] = false; // default: none - whiteList['mask-box-width'] = false; // default: auto - whiteList['mask-clip'] = false; // default: border-box - whiteList['mask-image'] = false; // default: none - whiteList['mask-origin'] = false; // default: border-box - whiteList['mask-position'] = false; // default: center - whiteList['mask-repeat'] = false; // default: no-repeat - whiteList['mask-size'] = false; // default: border-box - whiteList['mask-source-type'] = false; // default: auto - whiteList['mask-type'] = false; // default: luminance - whiteList['max-height'] = true; // default: none - whiteList['max-lines'] = false; // default: none - whiteList['max-width'] = true; // default: none - whiteList['min-height'] = true; // default: 0 - whiteList['min-width'] = true; // default: 0 - whiteList['move-to'] = false; // default: normal - whiteList['nav-down'] = false; // default: auto - whiteList['nav-index'] = false; // default: auto - whiteList['nav-left'] = false; // default: auto - whiteList['nav-right'] = false; // default: auto - whiteList['nav-up'] = false; // default: auto - whiteList['object-fit'] = false; // default: fill - whiteList['object-position'] = false; // default: 50% 50% - whiteList['opacity'] = false; // default: 1 - whiteList['order'] = false; // default: 0 - whiteList['orphans'] = false; // default: 2 - whiteList['outline'] = false; // default: depending on individual properties - whiteList['outline-color'] = false; // default: invert - whiteList['outline-offset'] = false; // default: 0 - whiteList['outline-style'] = false; // default: none - whiteList['outline-width'] = false; // default: medium - whiteList['overflow'] = false; // default: depending on individual properties - whiteList['overflow-wrap'] = false; // default: normal - whiteList['overflow-x'] = false; // default: visible - whiteList['overflow-y'] = false; // default: visible - whiteList['padding'] = true; // default: depending on individual properties - whiteList['padding-bottom'] = true; // default: 0 - whiteList['padding-left'] = true; // default: 0 - whiteList['padding-right'] = true; // default: 0 - whiteList['padding-top'] = true; // default: 0 - whiteList['page'] = false; // default: auto - whiteList['page-break-after'] = false; // default: auto - whiteList['page-break-before'] = false; // default: auto - whiteList['page-break-inside'] = false; // default: auto - whiteList['page-policy'] = false; // default: start - whiteList['pause'] = false; // default: implementation dependent - whiteList['pause-after'] = false; // default: implementation dependent - whiteList['pause-before'] = false; // default: implementation dependent - whiteList['perspective'] = false; // default: none - whiteList['perspective-origin'] = false; // default: 50% 50% - whiteList['pitch'] = false; // default: medium - whiteList['pitch-range'] = false; // default: 50 - whiteList['play-during'] = false; // default: auto - whiteList['position'] = false; // default: static - whiteList['presentation-level'] = false; // default: 0 - whiteList['quotes'] = false; // default: text - whiteList['region-fragment'] = false; // default: auto - whiteList['resize'] = false; // default: none - whiteList['rest'] = false; // default: depending on individual properties - whiteList['rest-after'] = false; // default: none - whiteList['rest-before'] = false; // default: none - whiteList['richness'] = false; // default: 50 - whiteList['right'] = false; // default: auto - whiteList['rotation'] = false; // default: 0 - whiteList['rotation-point'] = false; // default: 50% 50% - whiteList['ruby-align'] = false; // default: auto - whiteList['ruby-merge'] = false; // default: separate - whiteList['ruby-position'] = false; // default: before - whiteList['shape-image-threshold'] = false; // default: 0.0 - whiteList['shape-outside'] = false; // default: none - whiteList['shape-margin'] = false; // default: 0 - whiteList['size'] = false; // default: auto - whiteList['speak'] = false; // default: auto - whiteList['speak-as'] = false; // default: normal - whiteList['speak-header'] = false; // default: once - whiteList['speak-numeral'] = false; // default: continuous - whiteList['speak-punctuation'] = false; // default: none - whiteList['speech-rate'] = false; // default: medium - whiteList['stress'] = false; // default: 50 - whiteList['string-set'] = false; // default: none - whiteList['tab-size'] = false; // default: 8 - whiteList['table-layout'] = false; // default: auto - whiteList['text-align'] = true; // default: start - whiteList['text-align-last'] = true; // default: auto - whiteList['text-combine-upright'] = true; // default: none - whiteList['text-decoration'] = true; // default: none - whiteList['text-decoration-color'] = true; // default: currentColor - whiteList['text-decoration-line'] = true; // default: none - whiteList['text-decoration-skip'] = true; // default: objects - whiteList['text-decoration-style'] = true; // default: solid - whiteList['text-emphasis'] = true; // default: depending on individual properties - whiteList['text-emphasis-color'] = true; // default: currentColor - whiteList['text-emphasis-position'] = true; // default: over right - whiteList['text-emphasis-style'] = true; // default: none - whiteList['text-height'] = true; // default: auto - whiteList['text-indent'] = true; // default: 0 - whiteList['text-justify'] = true; // default: auto - whiteList['text-orientation'] = true; // default: mixed - whiteList['text-overflow'] = true; // default: clip - whiteList['text-shadow'] = true; // default: none - whiteList['text-space-collapse'] = true; // default: collapse - whiteList['text-transform'] = true; // default: none - whiteList['text-underline-position'] = true; // default: auto - whiteList['text-wrap'] = true; // default: normal - whiteList['top'] = false; // default: auto - whiteList['transform'] = false; // default: none - whiteList['transform-origin'] = false; // default: 50% 50% 0 - whiteList['transform-style'] = false; // default: flat - whiteList['transition'] = false; // default: depending on individual properties - whiteList['transition-delay'] = false; // default: 0s - whiteList['transition-duration'] = false; // default: 0s - whiteList['transition-property'] = false; // default: all - whiteList['transition-timing-function'] = false; // default: ease - whiteList['unicode-bidi'] = false; // default: normal - whiteList['vertical-align'] = false; // default: baseline - whiteList['visibility'] = false; // default: visible - whiteList['voice-balance'] = false; // default: center - whiteList['voice-duration'] = false; // default: auto - whiteList['voice-family'] = false; // default: implementation dependent - whiteList['voice-pitch'] = false; // default: medium - whiteList['voice-range'] = false; // default: medium - whiteList['voice-rate'] = false; // default: normal - whiteList['voice-stress'] = false; // default: normal - whiteList['voice-volume'] = false; // default: medium - whiteList['volume'] = false; // default: medium - whiteList['white-space'] = false; // default: normal - whiteList['widows'] = false; // default: 2 - whiteList['width'] = true; // default: auto - whiteList['will-change'] = false; // default: auto - whiteList['word-break'] = true; // default: normal - whiteList['word-spacing'] = true; // default: normal - whiteList['word-wrap'] = true; // default: normal - whiteList['wrap-flow'] = false; // default: auto - whiteList['wrap-through'] = false; // default: wrap - whiteList['writing-mode'] = false; // default: horizontal-tb - whiteList['z-index'] = false; // default: auto - - return whiteList; -} - - -/** - * 匹配到白名单上的一个属性时 - * - * @param {String} name - * @param {String} value - * @param {Object} options - * @return {String} - */ -function onAttr (name, value, options) { - // do nothing -} - -/** - * 匹配到不在白名单上的一个属性时 - * - * @param {String} name - * @param {String} value - * @param {Object} options - * @return {String} - */ -function onIgnoreAttr (name, value, options) { - // do nothing -} - -var REGEXP_URL_JAVASCRIPT = /javascript\s*\:/img; - -/** - * 过滤属性值 - * - * @param {String} name - * @param {String} value - * @return {String} - */ -function safeAttrValue(name, value) { - if (REGEXP_URL_JAVASCRIPT.test(value)) return ''; - return value; -} - - -exports.whiteList = getDefaultWhiteList(); -exports.getDefaultWhiteList = getDefaultWhiteList; -exports.onAttr = onAttr; -exports.onIgnoreAttr = onIgnoreAttr; -exports.safeAttrValue = safeAttrValue; - -},{}],8:[function(require,module,exports){ -/** - * cssfilter - * - * @author 老雷 - */ - -var DEFAULT = require('./default'); -var FilterCSS = require('./css'); - - -/** - * XSS过滤 - * - * @param {String} css 要过滤的CSS代码 - * @param {Object} options 选项：whiteList, onAttr, onIgnoreAttr - * @return {String} - */ -function filterCSS (html, options) { - var xss = new FilterCSS(options); - return xss.process(html); -} - - -// 输出 -exports = module.exports = filterCSS; -exports.FilterCSS = FilterCSS; -for (var i in DEFAULT) exports[i] = DEFAULT[i]; - -// 在浏览器端使用 -if (typeof window !== 'undefined') { - window.filterCSS = module.exports; -} - -},{"./css":6,"./default":7}],9:[function(require,module,exports){ -/** - * cssfilter - * - * @author 老雷 - */ - -var _ = require('./util'); - - -/** - * 解析style - * - * @param {String} css - * @param {Function} onAttr 处理属性的函数 - * 参数格式： function (sourcePosition, position, name, value, source) - * @return {String} - */ -function parseStyle (css, onAttr) { - css = _.trimRight(css); - if (css[css.length - 1] !== ';') css += ';'; - var cssLength = css.length; - var isParenthesisOpen = false; - var lastPos = 0; - var i = 0; - var retCSS = ''; - - function addNewAttr () { - // 如果没有正常的闭合圆括号，则直接忽略当前属性 - if (!isParenthesisOpen) { - var source = _.trim(css.slice(lastPos, i)); - var j = source.indexOf(':'); - if (j !== -1) { - var name = _.trim(source.slice(0, j)); - var value = _.trim(source.slice(j + 1)); - // 必须有属性名称 - if (name) { - var ret = onAttr(lastPos, retCSS.length, name, value, source); - if (ret) retCSS += ret + '; '; - } - } - } - lastPos = i + 1; - } - - for (; i < cssLength; i++) { - var c = css[i]; - if (c === '/' && css[i + 1] === '*') { - // 备注开始 - var j = css.indexOf('*/', i + 2); - // 如果没有正常的备注结束，则后面的部分全部跳过 - if (j === -1) break; - // 直接将当前位置调到备注结尾，并且初始化状态 - i = j + 1; - lastPos = i + 1; - isParenthesisOpen = false; - } else if (c === '(') { - isParenthesisOpen = true; - } else if (c === ')') { - isParenthesisOpen = false; - } else if (c === ';') { - if (isParenthesisOpen) { - // 在圆括号里面，忽略 - } else { - addNewAttr(); - } - } else if (c === '\n') { - addNewAttr(); - } - } - - return _.trim(retCSS); -} - -module.exports = parseStyle; - -},{"./util":10}],10:[function(require,module,exports){ -module.exports = { - indexOf: function (arr, item) { - var i, j; - if (Array.prototype.indexOf) { - return arr.indexOf(item); - } - for (i = 0, j = arr.length; i < j; i++) { - if (arr[i] === item) { - return i; - } - } - return -1; - }, - forEach: function (arr, fn, scope) { - var i, j; - if (Array.prototype.forEach) { - return arr.forEach(fn, scope); - } - for (i = 0, j = arr.length; i < j; i++) { - fn.call(scope, arr[i], i, arr); - } - }, - trim: function (str) { - if (String.prototype.trim) { - return str.trim(); - } - return str.replace(/(^\s*)|(\s*$)/g, ''); - }, - trimRight: function (str) { - if (String.prototype.trimRight) { - return str.trimRight(); - } - return str.replace(/(\s*$)/g, ''); - } -}; - -},{}]},{},[2]); +(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o/g;var REGEXP_QUOTE=/"/g;var REGEXP_QUOTE_2=/"/g;var REGEXP_ATTR_VALUE_1=/&#([a-zA-Z0-9]*);?/gim;var REGEXP_ATTR_VALUE_COLON=/:?/gim;var REGEXP_ATTR_VALUE_NEWLINE=/&newline;?/gim;var REGEXP_DEFAULT_ON_TAG_ATTR_3=/\/\*|\*\//gm;var REGEXP_DEFAULT_ON_TAG_ATTR_4=/((j\s*a\s*v\s*a|v\s*b|l\s*i\s*v\s*e)\s*s\s*c\s*r\s*i\s*p\s*t\s*|m\s*o\s*c\s*h\s*a)\:/gi;var REGEXP_DEFAULT_ON_TAG_ATTR_5=/^[\s"'`]*(d\s*a\s*t\s*a\s*)\:/gi;var REGEXP_DEFAULT_ON_TAG_ATTR_6=/^[\s"'`]*(d\s*a\s*t\s*a\s*)\:\s*image\//gi;var REGEXP_DEFAULT_ON_TAG_ATTR_7=/e\s*x\s*p\s*r\s*e\s*s\s*s\s*i\s*o\s*n\s*\(.*/gi;var REGEXP_DEFAULT_ON_TAG_ATTR_8=/u\s*r\s*l\s*\(.*/gi;function escapeQuote(str){return str.replace(REGEXP_QUOTE,""");} +function unescapeQuote(str){return str.replace(REGEXP_QUOTE_2,'"');} +function escapeHtmlEntities(str){return str.replace(REGEXP_ATTR_VALUE_1,function replaceUnicode(str,code){return code[0]==="x"||code[0]==="X"?String.fromCharCode(parseInt(code.substr(1),16)):String.fromCharCode(parseInt(code,10));});} +function escapeDangerHtml5Entities(str){return str.replace(REGEXP_ATTR_VALUE_COLON,":").replace(REGEXP_ATTR_VALUE_NEWLINE," ");} +function clearNonPrintableCharacter(str){var str2="";for(var i=0,len=str.length;i/g;function stripBlankChar(html){var chars=html.split("");chars=chars.filter(function(char){var c=char.charCodeAt(0);if(c===127)return false;if(c<=31){if(c===10||c===13)return true;return false;} +return true;});return chars.join("");} +exports.whiteList=getDefaultWhiteList();exports.getDefaultWhiteList=getDefaultWhiteList;exports.onTag=onTag;exports.onIgnoreTag=onIgnoreTag;exports.onTagAttr=onTagAttr;exports.onIgnoreTagAttr=onIgnoreTagAttr;exports.safeAttrValue=safeAttrValue;exports.escapeHtml=escapeHtml;exports.escapeQuote=escapeQuote;exports.unescapeQuote=unescapeQuote;exports.escapeHtmlEntities=escapeHtmlEntities;exports.escapeDangerHtml5Entities=escapeDangerHtml5Entities;exports.clearNonPrintableCharacter=clearNonPrintableCharacter;exports.friendlyAttrValue=friendlyAttrValue;exports.escapeAttrValue=escapeAttrValue;exports.onIgnoreTagStripAll=onIgnoreTagStripAll;exports.StripTagBody=StripTagBody;exports.stripCommentTag=stripCommentTag;exports.stripBlankChar=stripBlankChar;exports.cssFilter=defaultCSSFilter;exports.getDefaultCSSWhiteList=getDefaultCSSWhiteList;},{"./util":4,"cssfilter":8}],2:[function(require,module,exports){var DEFAULT=require("./default");var parser=require("./parser");var FilterXSS=require("./xss");function filterXSS(html,options){var xss=new FilterXSS(options);return xss.process(html);} +exports=module.exports=filterXSS;exports.filterXSS=filterXSS;exports.FilterXSS=FilterXSS;for(var i in DEFAULT)exports[i]=DEFAULT[i];for(var i in parser)exports[i]=parser[i];if(typeof window!=="undefined"){window.filterXSS=module.exports;} +function isWorkerEnv(){return typeof self!=='undefined'&&typeof DedicatedWorkerGlobalScope!=='undefined'&&self instanceof DedicatedWorkerGlobalScope;} +if(isWorkerEnv()){self.filterXSS=module.exports;}},{"./default":1,"./parser":3,"./xss":5}],3:[function(require,module,exports){var _=require("./util");function getTagName(html){var i=_.spaceIndex(html);if(i===-1){var tagName=html.slice(1,-1);}else{var tagName=html.slice(1,i+1);} +tagName=_.trim(tagName).toLowerCase();if(tagName.slice(0,1)==="/")tagName=tagName.slice(1);if(tagName.slice(-1)==="/")tagName=tagName.slice(0,-1);return tagName;} +function isClosing(html){return html.slice(0,2)===""){rethtml+=escapeHtml(html.slice(lastPos,tagStart));currentHtml=html.slice(tagStart,currentPos+1);currentTagName=getTagName(currentHtml);rethtml+=onTag(tagStart,rethtml.length,currentTagName,currentHtml,isClosing(currentHtml));lastPos=currentPos+1;tagStart=false;continue;} +if((c==='"'||c==="'")&&html.charAt(currentPos-1)==="="){quoteStart=c;continue;}}else{if(c===quoteStart){quoteStart=false;continue;}}}} +if(lastPos0;i--){var c=str[i];if(c===" ")continue;if(c==="=")return i;return-1;}} +function isQuoteWrapString(text){if((text[0]==='"'&&text[text.length-1]==='"')||(text[0]==="'"&&text[text.length-1]==="'")){return true;}else{return false;}} +function stripQuoteWrap(text){if(isQuoteWrapString(text)){return text.substr(1,text.length-2);}else{return text;}} +exports.parseTag=parseTag;exports.parseAttr=parseAttr;},{"./util":4}],4:[function(require,module,exports){module.exports={indexOf:function(arr,item){var i,j;if(Array.prototype.indexOf){return arr.indexOf(item);} +for(i=0,j=arr.length;i";} +var attrs=getAttrs(html);var whiteAttrList=whiteList[tag];var attrsHtml=parseAttr(attrs.html,function(name,value){var isWhiteAttr=_.indexOf(whiteAttrList,name)!==-1;var ret=onTagAttr(tag,name,value,isWhiteAttr);if(!isNull(ret))return ret;if(isWhiteAttr){value=safeAttrValue(tag,name,value,cssFilter);if(value){return name+'="'+value+'"';}else{return name;}}else{var ret=onIgnoreTagAttr(tag,name,value,isWhiteAttr);if(!isNull(ret))return ret;return;}});var html="<"+tag;if(attrsHtml)html+=" "+attrsHtml;if(attrs.closing)html+=" /";html+=">";return html;}else{var ret=onIgnoreTag(tag,html,info);if(!isNull(ret))return ret;return escapeHtml(html);}},escapeHtml);if(stripIgnoreTagBody){retHtml=stripIgnoreTagBody.remove(retHtml);} +return retHtml;};module.exports=FilterXSS;},{"./default":1,"./parser":3,"./util":4,"cssfilter":8}],6:[function(require,module,exports){var DEFAULT=require('./default');var parseStyle=require('./parser');var _=require('./util');function isNull(obj){return(obj===undefined||obj===null);} +function shallowCopyObject(obj){var ret={};for(var i in obj){ret[i]=obj[i];} +return ret;} +function FilterCSS(options){options=shallowCopyObject(options||{});options.whiteList=options.whiteList||DEFAULT.whiteList;options.onAttr=options.onAttr||DEFAULT.onAttr;options.onIgnoreAttr=options.onIgnoreAttr||DEFAULT.onIgnoreAttr;options.safeAttrValue=options.safeAttrValue||DEFAULT.safeAttrValue;this.options=options;} +FilterCSS.prototype.process=function(css){css=css||'';css=css.toString();if(!css)return'';var me=this;var options=me.options;var whiteList=options.whiteList;var onAttr=options.onAttr;var onIgnoreAttr=options.onIgnoreAttr;var safeAttrValue=options.safeAttrValue;var retCSS=parseStyle(css,function(sourcePosition,position,name,value,source){var check=whiteList[name];var isWhite=false;if(check===true)isWhite=check;else if(typeof check==='function')isWhite=check(value);else if(check instanceof RegExp)isWhite=check.test(value);if(isWhite!==true)isWhite=false;value=safeAttrValue(name,value);if(!value)return;var opts={position:position,sourcePosition:sourcePosition,source:source,isWhite:isWhite};if(isWhite){var ret=onAttr(name,value,opts);if(isNull(ret)){return name+':'+value;}else{return ret;}}else{var ret=onIgnoreAttr(name,value,opts);if(!isNull(ret)){return ret;}}});return retCSS;};module.exports=FilterCSS;},{"./default":7,"./parser":9,"./util":10}],7:[function(require,module,exports){function getDefaultWhiteList(){var whiteList={};whiteList['align-content']=false;whiteList['align-items']=false;whiteList['align-self']=false;whiteList['alignment-adjust']=false;whiteList['alignment-baseline']=false;whiteList['all']=false;whiteList['anchor-point']=false;whiteList['animation']=false;whiteList['animation-delay']=false;whiteList['animation-direction']=false;whiteList['animation-duration']=false;whiteList['animation-fill-mode']=false;whiteList['animation-iteration-count']=false;whiteList['animation-name']=false;whiteList['animation-play-state']=false;whiteList['animation-timing-function']=false;whiteList['azimuth']=false;whiteList['backface-visibility']=false;whiteList['background']=true;whiteList['background-attachment']=true;whiteList['background-clip']=true;whiteList['background-color']=true;whiteList['background-image']=true;whiteList['background-origin']=true;whiteList['background-position']=true;whiteList['background-repeat']=true;whiteList['background-size']=true;whiteList['baseline-shift']=false;whiteList['binding']=false;whiteList['bleed']=false;whiteList['bookmark-label']=false;whiteList['bookmark-level']=false;whiteList['bookmark-state']=false;whiteList['border']=true;whiteList['border-bottom']=true;whiteList['border-bottom-color']=true;whiteList['border-bottom-left-radius']=true;whiteList['border-bottom-right-radius']=true;whiteList['border-bottom-style']=true;whiteList['border-bottom-width']=true;whiteList['border-collapse']=true;whiteList['border-color']=true;whiteList['border-image']=true;whiteList['border-image-outset']=true;whiteList['border-image-repeat']=true;whiteList['border-image-slice']=true;whiteList['border-image-source']=true;whiteList['border-image-width']=true;whiteList['border-left']=true;whiteList['border-left-color']=true;whiteList['border-left-style']=true;whiteList['border-left-width']=true;whiteList['border-radius']=true;whiteList['border-right']=true;whiteList['border-right-color']=true;whiteList['border-right-style']=true;whiteList['border-right-width']=true;whiteList['border-spacing']=true;whiteList['border-style']=true;whiteList['border-top']=true;whiteList['border-top-color']=true;whiteList['border-top-left-radius']=true;whiteList['border-top-right-radius']=true;whiteList['border-top-style']=true;whiteList['border-top-width']=true;whiteList['border-width']=true;whiteList['bottom']=false;whiteList['box-decoration-break']=true;whiteList['box-shadow']=true;whiteList['box-sizing']=true;whiteList['box-snap']=true;whiteList['box-suppress']=true;whiteList['break-after']=true;whiteList['break-before']=true;whiteList['break-inside']=true;whiteList['caption-side']=false;whiteList['chains']=false;whiteList['clear']=true;whiteList['clip']=false;whiteList['clip-path']=false;whiteList['clip-rule']=false;whiteList['color']=true;whiteList['color-interpolation-filters']=true;whiteList['column-count']=false;whiteList['column-fill']=false;whiteList['column-gap']=false;whiteList['column-rule']=false;whiteList['column-rule-color']=false;whiteList['column-rule-style']=false;whiteList['column-rule-width']=false;whiteList['column-span']=false;whiteList['column-width']=false;whiteList['columns']=false;whiteList['contain']=false;whiteList['content']=false;whiteList['counter-increment']=false;whiteList['counter-reset']=false;whiteList['counter-set']=false;whiteList['crop']=false;whiteList['cue']=false;whiteList['cue-after']=false;whiteList['cue-before']=false;whiteList['cursor']=false;whiteList['direction']=false;whiteList['display']=true;whiteList['display-inside']=true;whiteList['display-list']=true;whiteList['display-outside']=true;whiteList['dominant-baseline']=false;whiteList['elevation']=false;whiteList['empty-cells']=false;whiteList['filter']=false;whiteList['flex']=false;whiteList['flex-basis']=false;whiteList['flex-direction']=false;whiteList['flex-flow']=false;whiteList['flex-grow']=false;whiteList['flex-shrink']=false;whiteList['flex-wrap']=false;whiteList['float']=false;whiteList['float-offset']=false;whiteList['flood-color']=false;whiteList['flood-opacity']=false;whiteList['flow-from']=false;whiteList['flow-into']=false;whiteList['font']=true;whiteList['font-family']=true;whiteList['font-feature-settings']=true;whiteList['font-kerning']=true;whiteList['font-language-override']=true;whiteList['font-size']=true;whiteList['font-size-adjust']=true;whiteList['font-stretch']=true;whiteList['font-style']=true;whiteList['font-synthesis']=true;whiteList['font-variant']=true;whiteList['font-variant-alternates']=true;whiteList['font-variant-caps']=true;whiteList['font-variant-east-asian']=true;whiteList['font-variant-ligatures']=true;whiteList['font-variant-numeric']=true;whiteList['font-variant-position']=true;whiteList['font-weight']=true;whiteList['grid']=false;whiteList['grid-area']=false;whiteList['grid-auto-columns']=false;whiteList['grid-auto-flow']=false;whiteList['grid-auto-rows']=false;whiteList['grid-column']=false;whiteList['grid-column-end']=false;whiteList['grid-column-start']=false;whiteList['grid-row']=false;whiteList['grid-row-end']=false;whiteList['grid-row-start']=false;whiteList['grid-template']=false;whiteList['grid-template-areas']=false;whiteList['grid-template-columns']=false;whiteList['grid-template-rows']=false;whiteList['hanging-punctuation']=false;whiteList['height']=true;whiteList['hyphens']=false;whiteList['icon']=false;whiteList['image-orientation']=false;whiteList['image-resolution']=false;whiteList['ime-mode']=false;whiteList['initial-letters']=false;whiteList['inline-box-align']=false;whiteList['justify-content']=false;whiteList['justify-items']=false;whiteList['justify-self']=false;whiteList['left']=false;whiteList['letter-spacing']=true;whiteList['lighting-color']=true;whiteList['line-box-contain']=false;whiteList['line-break']=false;whiteList['line-grid']=false;whiteList['line-height']=false;whiteList['line-snap']=false;whiteList['line-stacking']=false;whiteList['line-stacking-ruby']=false;whiteList['line-stacking-shift']=false;whiteList['line-stacking-strategy']=false;whiteList['list-style']=true;whiteList['list-style-image']=true;whiteList['list-style-position']=true;whiteList['list-style-type']=true;whiteList['margin']=true;whiteList['margin-bottom']=true;whiteList['margin-left']=true;whiteList['margin-right']=true;whiteList['margin-top']=true;whiteList['marker-offset']=false;whiteList['marker-side']=false;whiteList['marks']=false;whiteList['mask']=false;whiteList['mask-box']=false;whiteList['mask-box-outset']=false;whiteList['mask-box-repeat']=false;whiteList['mask-box-slice']=false;whiteList['mask-box-source']=false;whiteList['mask-box-width']=false;whiteList['mask-clip']=false;whiteList['mask-image']=false;whiteList['mask-origin']=false;whiteList['mask-position']=false;whiteList['mask-repeat']=false;whiteList['mask-size']=false;whiteList['mask-source-type']=false;whiteList['mask-type']=false;whiteList['max-height']=true;whiteList['max-lines']=false;whiteList['max-width']=true;whiteList['min-height']=true;whiteList['min-width']=true;whiteList['move-to']=false;whiteList['nav-down']=false;whiteList['nav-index']=false;whiteList['nav-left']=false;whiteList['nav-right']=false;whiteList['nav-up']=false;whiteList['object-fit']=false;whiteList['object-position']=false;whiteList['opacity']=false;whiteList['order']=false;whiteList['orphans']=false;whiteList['outline']=false;whiteList['outline-color']=false;whiteList['outline-offset']=false;whiteList['outline-style']=false;whiteList['outline-width']=false;whiteList['overflow']=false;whiteList['overflow-wrap']=false;whiteList['overflow-x']=false;whiteList['overflow-y']=false;whiteList['padding']=true;whiteList['padding-bottom']=true;whiteList['padding-left']=true;whiteList['padding-right']=true;whiteList['padding-top']=true;whiteList['page']=false;whiteList['page-break-after']=false;whiteList['page-break-before']=false;whiteList['page-break-inside']=false;whiteList['page-policy']=false;whiteList['pause']=false;whiteList['pause-after']=false;whiteList['pause-before']=false;whiteList['perspective']=false;whiteList['perspective-origin']=false;whiteList['pitch']=false;whiteList['pitch-range']=false;whiteList['play-during']=false;whiteList['position']=false;whiteList['presentation-level']=false;whiteList['quotes']=false;whiteList['region-fragment']=false;whiteList['resize']=false;whiteList['rest']=false;whiteList['rest-after']=false;whiteList['rest-before']=false;whiteList['richness']=false;whiteList['right']=false;whiteList['rotation']=false;whiteList['rotation-point']=false;whiteList['ruby-align']=false;whiteList['ruby-merge']=false;whiteList['ruby-position']=false;whiteList['shape-image-threshold']=false;whiteList['shape-outside']=false;whiteList['shape-margin']=false;whiteList['size']=false;whiteList['speak']=false;whiteList['speak-as']=false;whiteList['speak-header']=false;whiteList['speak-numeral']=false;whiteList['speak-punctuation']=false;whiteList['speech-rate']=false;whiteList['stress']=false;whiteList['string-set']=false;whiteList['tab-size']=false;whiteList['table-layout']=false;whiteList['text-align']=true;whiteList['text-align-last']=true;whiteList['text-combine-upright']=true;whiteList['text-decoration']=true;whiteList['text-decoration-color']=true;whiteList['text-decoration-line']=true;whiteList['text-decoration-skip']=true;whiteList['text-decoration-style']=true;whiteList['text-emphasis']=true;whiteList['text-emphasis-color']=true;whiteList['text-emphasis-position']=true;whiteList['text-emphasis-style']=true;whiteList['text-height']=true;whiteList['text-indent']=true;whiteList['text-justify']=true;whiteList['text-orientation']=true;whiteList['text-overflow']=true;whiteList['text-shadow']=true;whiteList['text-space-collapse']=true;whiteList['text-transform']=true;whiteList['text-underline-position']=true;whiteList['text-wrap']=true;whiteList['top']=false;whiteList['transform']=false;whiteList['transform-origin']=false;whiteList['transform-style']=false;whiteList['transition']=false;whiteList['transition-delay']=false;whiteList['transition-duration']=false;whiteList['transition-property']=false;whiteList['transition-timing-function']=false;whiteList['unicode-bidi']=false;whiteList['vertical-align']=false;whiteList['visibility']=false;whiteList['voice-balance']=false;whiteList['voice-duration']=false;whiteList['voice-family']=false;whiteList['voice-pitch']=false;whiteList['voice-range']=false;whiteList['voice-rate']=false;whiteList['voice-stress']=false;whiteList['voice-volume']=false;whiteList['volume']=false;whiteList['white-space']=false;whiteList['widows']=false;whiteList['width']=true;whiteList['will-change']=false;whiteList['word-break']=true;whiteList['word-spacing']=true;whiteList['word-wrap']=true;whiteList['wrap-flow']=false;whiteList['wrap-through']=false;whiteList['writing-mode']=false;whiteList['z-index']=false;return whiteList;} +function onAttr(name,value,options){} +function onIgnoreAttr(name,value,options){} +var REGEXP_URL_JAVASCRIPT=/javascript\s*\:/img;function safeAttrValue(name,value){if(REGEXP_URL_JAVASCRIPT.test(value))return'';return value;} +exports.whiteList=getDefaultWhiteList();exports.getDefaultWhiteList=getDefaultWhiteList;exports.onAttr=onAttr;exports.onIgnoreAttr=onIgnoreAttr;exports.safeAttrValue=safeAttrValue;},{}],8:[function(require,module,exports){var DEFAULT=require('./default');var FilterCSS=require('./css');function filterCSS(html,options){var xss=new FilterCSS(options);return xss.process(html);} +exports=module.exports=filterCSS;exports.FilterCSS=FilterCSS;for(var i in DEFAULT)exports[i]=DEFAULT[i];if(typeof window!=='undefined'){window.filterCSS=module.exports;}},{"./css":6,"./default":7}],9:[function(require,module,exports){var _=require('./util');function parseStyle(css,onAttr){css=_.trimRight(css);if(css[css.length-1]!==';')css+=';';var cssLength=css.length;var isParenthesisOpen=false;var lastPos=0;var i=0;var retCSS='';function addNewAttr(){if(!isParenthesisOpen){var source=_.trim(css.slice(lastPos,i));var j=source.indexOf(':');if(j!==-1){var name=_.trim(source.slice(0,j));var value=_.trim(source.slice(j+1));if(name){var ret=onAttr(lastPos,retCSS.length,name,value,source);if(ret)retCSS+=ret+'; ';}}} +lastPos=i+1;} +for(;i