测试

From f87697e22f289cc96fc4e79da81575115b3e89a2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Anton=20Luka=20=C5=A0ijanec?= Date: Sat, 8 Feb 2020 16:41:06 +0100 Subject: added messaging --- node_modules/xss/dist/test.html | 15 + node_modules/xss/dist/xss.js | 1609 ++++++++++++++++++++++++++++++++++++++ node_modules/xss/dist/xss.min.js | 1 + 3 files changed, 1625 insertions(+) create mode 100644 node_modules/xss/dist/test.html create mode 100644 node_modules/xss/dist/xss.js create mode 100644 node_modules/xss/dist/xss.min.js (limited to 'node_modules/xss/dist') diff --git a/node_modules/xss/dist/test.html b/node_modules/xss/dist/test.html new file mode 100644 index 0000000..cae361e --- /dev/null +++ b/node_modules/xss/dist/test.html @@ -0,0 +1,15 @@ + + + + 测试 + + + +

+ + + + \ No newline at end of file diff --git a/node_modules/xss/dist/xss.js b/node_modules/xss/dist/xss.js new file mode 100644 index 0000000..9583a6b --- /dev/null +++ b/node_modules/xss/dist/xss.js @@ -0,0 +1,1609 @@ +(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:` | `/` | `#` + value = _.trim(value); + if (value === "#") return "#"; + if ( + !( + value.substr(0, 7) === "http://" || + value.substr(0, 8) === "https://" || + value.substr(0, 7) === "mailto:" || + value.substr(0, 4) === "tel:" || + 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) { + "user 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]); diff --git a/node_modules/xss/dist/xss.min.js b/node_modules/xss/dist/xss.min.js new file mode 100644 index 0000000..b2c3878 --- /dev/null +++ b/node_modules/xss/dist/xss.min.js @@ -0,0 +1 @@ +(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*\:/gim;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