summaryrefslogtreecommitdiffstats
path: root/dist/js/xss.js
diff options
context:
space:
mode:
Diffstat (limited to 'dist/js/xss.js')
-rw-r--r--dist/js/xss.js1613
1 files changed, 0 insertions, 1613 deletions
diff --git a/dist/js/xss.js b/dist/js/xss.js
deleted file mode 100644
index e0a6ba0..0000000
--- a/dist/js/xss.js
+++ /dev/null
@@ -1,1613 +0,0 @@
-(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<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
-/**
- * default settings
- *
- * @author Zongmin Lei<leizongmin@gmail.com>
- */
-
-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, "&lt;").replace(REGEXP_GT, "&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_GT = />/g;
-var REGEXP_QUOTE = /"/g;
-var REGEXP_QUOTE_2 = /&quot;/g;
-var REGEXP_ATTR_VALUE_1 = /&#([a-zA-Z0-9]*);?/gim;
-var REGEXP_ATTR_VALUE_COLON = /&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, "&quot;");
-}
-
-/**
- * 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 = /<!--[\s\S]*?-->/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<leizongmin@gmail.com>
- */
-
-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<leizongmin@gmail.com>
- */
-
-var _ = require("./util");
-
-/**
- * get tag name
- *
- * @param {String} html e.g. '<a hef="#">'
- * @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：'<a hef="#">'
- * @return {Boolean}
- */
-function isClosing(html) {
- return html.slice(0, 2) === "</";
-}
-
-/**
- * parse input html and returns processed html
- *
- * @param {String} html
- * @param {Function} onTag e.g. function (sourcePosition, position, tag, html, isClosing)
- * @param {Function} escapeHtml
- * @return {String}
- */
-function parseTag(html, onTag, escapeHtml) {
- "use strict";
-
- var rethtml = "";
- var lastPos = 0;
- var tagStart = false;
- var quoteStart = false;
- var currentPos = 0;
- var len = html.length;
- var currentTagName = "";
- var currentHtml = "";
-
- for (currentPos = 0; currentPos < len; currentPos++) {
- var c = html.charAt(currentPos);
- if (tagStart === false) {
- if (c === "<") {
- tagStart = currentPos;
- continue;
- }
- } else {
- if (quoteStart === false) {
- if (c === "<") {
- rethtml += escapeHtml(html.slice(lastPos, currentPos));
- tagStart = currentPos;
- lastPos = currentPos;
- continue;
- }
- if (c === ">") {
- 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<leizongmin@gmail.com>
- */
-
-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 "</" + tag + ">";
- }
-
- 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<leizongmin@gmail.com>
- */
-
-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<leizongmin@gmail.com>
- */
-
-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<leizongmin@gmail.com>
- */
-
-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<leizongmin@gmail.com>
- */
-
-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]);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 04:19:44 +0100