1700 lines
51 KiB
JavaScript
1700 lines
51 KiB
JavaScript
(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
|
||
/**
|
||
* default settings
|
||
*
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||
* @author Zongmin Lei<leizongmin@gmail.com>
|
||
*/
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||
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var FilterCSS = require("cssfilter").FilterCSS;
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var getDefaultCSSWhiteList = require("cssfilter").getDefaultWhiteList;
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||
var _ = require("./util");
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||
|
||
function getDefaultWhiteList() {
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return {
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||
a: ["target", "href", "title"],
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abbr: ["title"],
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address: [],
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||
area: ["shape", "coords", "href", "alt"],
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||
article: [],
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||
aside: [],
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||
audio: [
|
||
"autoplay",
|
||
"controls",
|
||
"crossorigin",
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||
"loop",
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||
"muted",
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||
"preload",
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"src",
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],
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||
b: [],
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bdi: ["dir"],
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||
bdo: ["dir"],
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||
big: [],
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blockquote: ["cite"],
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||
br: [],
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caption: [],
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||
center: [],
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||
cite: [],
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||
code: [],
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||
col: ["align", "valign", "span", "width"],
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||
colgroup: ["align", "valign", "span", "width"],
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dd: [],
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del: ["datetime"],
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||
details: ["open"],
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||
div: [],
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dl: [],
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dt: [],
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||
em: [],
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||
figcaption: [],
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||
figure: [],
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||
font: ["color", "size", "face"],
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||
footer: [],
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||
h1: [],
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||
h2: [],
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h3: [],
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h4: [],
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h5: [],
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h6: [],
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||
header: [],
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||
hr: [],
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i: [],
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img: ["src", "alt", "title", "width", "height"],
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ins: ["datetime"],
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li: [],
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||
mark: [],
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nav: [],
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ol: [],
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p: [],
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||
pre: [],
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||
s: [],
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section: [],
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small: [],
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||
span: [],
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||
sub: [],
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summary: [],
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sup: [],
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||
strong: [],
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strike: [],
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table: ["width", "border", "align", "valign"],
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tbody: ["align", "valign"],
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td: ["width", "rowspan", "colspan", "align", "valign"],
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||
tfoot: ["align", "valign"],
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th: ["width", "rowspan", "colspan", "align", "valign"],
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thead: ["align", "valign"],
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tr: ["rowspan", "align", "valign"],
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tt: [],
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u: [],
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ul: [],
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video: [
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"autoplay",
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"controls",
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||
"crossorigin",
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||
"loop",
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"muted",
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||
"playsinline",
|
||
"poster",
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||
"preload",
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||
"src",
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||
"height",
|
||
"width",
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||
],
|
||
};
|
||
}
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||
|
||
var defaultCSSFilter = new FilterCSS();
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||
|
||
/**
|
||
* default onTag function
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||
*
|
||
* @param {String} tag
|
||
* @param {String} html
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||
* @param {Object} options
|
||
* @return {String}
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||
*/
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||
function onTag(tag, html, options) {
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||
// do nothing
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||
}
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||
|
||
/**
|
||
* 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
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||
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 (
|
||
!(
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||
value.substr(0, 7) === "http://" ||
|
||
value.substr(0, 8) === "https://" ||
|
||
value.substr(0, 7) === "mailto:" ||
|
||
value.substr(0, 4) === "tel:" ||
|
||
value.substr(0, 11) === "data:image/" ||
|
||
value.substr(0, 6) === "ftp://" ||
|
||
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;
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||
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;
|
||
}
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||
|
||
// RegExp list
|
||
var REGEXP_LT = /</g;
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||
var REGEXP_GT = />/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;
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||
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;
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||
// 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 double quote
|
||
*
|
||
* @param {String} str
|
||
* @return {String} str
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||
*/
|
||
function escapeQuote(str) {
|
||
return str.replace(REGEXP_QUOTE, """);
|
||
}
|
||
|
||
/**
|
||
* unescape double quote
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||
*
|
||
* @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) {
|
||
var retHtml = "";
|
||
var lastPos = 0;
|
||
while (lastPos < html.length) {
|
||
var i = html.indexOf("<!--", lastPos);
|
||
if (i === -1) {
|
||
retHtml += html.slice(lastPos);
|
||
break;
|
||
}
|
||
retHtml += html.slice(lastPos, i);
|
||
var j = html.indexOf("-->", i);
|
||
if (j === -1) {
|
||
break;
|
||
}
|
||
lastPos = j + 3;
|
||
}
|
||
return retHtml;
|
||
}
|
||
|
||
/**
|
||
* 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;
|
||
|
||
(function () {
|
||
for (var i in DEFAULT) {
|
||
exports[i] = DEFAULT[i];
|
||
}
|
||
for (var j in parser) {
|
||
exports[j] = parser[j];
|
||
}
|
||
})();
|
||
|
||
// 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);
|
||
var tagName;
|
||
if (i === -1) {
|
||
tagName = html.slice(1, -1);
|
||
} else {
|
||
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 = "";
|
||
|
||
chariterator: 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 === ">" || currentPos === len - 1) {
|
||
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 === "'") {
|
||
var i = 1;
|
||
var ic = html.charAt(currentPos - i);
|
||
|
||
while (ic.trim() === "" || ic === "=") {
|
||
if (ic === "=") {
|
||
quoteStart = c;
|
||
continue chariterator;
|
||
}
|
||
ic = html.charAt(currentPos - ++i);
|
||
}
|
||
}
|
||
} else {
|
||
if (c === quoteStart) {
|
||
quoteStart = false;
|
||
continue;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
if (lastPos < len) {
|
||
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 lastMarkPos = 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;
|
||
lastMarkPos = html.charAt(lastPos) === '"' || html.charAt(lastPos) === "'" ? lastPos : findNextQuotationMark(html, i + 1);
|
||
continue;
|
||
}
|
||
if (tmpName !== false) {
|
||
if (
|
||
i === lastMarkPos
|
||
) {
|
||
j = html.indexOf(c, i + 1);
|
||
if (j === -1) {
|
||
break;
|
||
} else {
|
||
v = _.trim(html.slice(lastMarkPos + 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 findNextQuotationMark(str, i) {
|
||
for (; i < str.length; i++) {
|
||
var c = str[i];
|
||
if (c === " ") continue;
|
||
if (c === "'" || 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;
|
||
}
|
||
|
||
function keysToLowerCase(obj) {
|
||
var ret = {};
|
||
for (var i in obj) {
|
||
if (Array.isArray(obj[i])) {
|
||
ret[i.toLowerCase()] = obj[i].map(function (item) {
|
||
return item.toLowerCase();
|
||
});
|
||
} else {
|
||
ret[i.toLowerCase()] = obj[i];
|
||
}
|
||
}
|
||
return ret;
|
||
}
|
||
|
||
/**
|
||
* FilterXSS class
|
||
*
|
||
* @param {Object} options
|
||
* whiteList (or allowList), 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;
|
||
}
|
||
if (options.whiteList || options.allowList) {
|
||
options.whiteList = keysToLowerCase(options.whiteList || options.allowList);
|
||
} else {
|
||
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) {
|
||
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: Object.prototype.hasOwnProperty.call(whiteList, 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()`
|
||
ret = onIgnoreTagAttr(tag, name, value, isWhiteAttr);
|
||
if (!isNull(ret)) return ret;
|
||
return;
|
||
}
|
||
});
|
||
|
||
// build new tag html
|
||
html = "<" + tag;
|
||
if (attrsHtml) html += " " + attrsHtml;
|
||
if (attrs.closing) html += " /";
|
||
html += ">";
|
||
return html;
|
||
} else {
|
||
// call `onIgnoreTag()`
|
||
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]);
|