From 3a3246dfecab404df90513989bf84a270e17d1f1 Mon Sep 17 00:00:00 2001 From: sijanec Date: Sat, 26 Sep 2020 21:42:10 +0200 Subject: DNM: started lopolisc/untested, added server nginx conf fileas --- dist/js/lib/xss.js | 1695 +++++++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 1612 insertions(+), 83 deletions(-) (limited to 'dist/js/lib/xss.js') diff --git a/dist/js/lib/xss.js b/dist/js/lib/xss.js index f2030f0..e0a6ba0 100755 --- a/dist/js/lib/xss.js +++ b/dist/js/lib/xss.js @@ -1,84 +1,1613 @@ +(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 + */ -(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o/g;var REGEXP_QUOTE=/"/g;var REGEXP_QUOTE_2=/"/g;var REGEXP_ATTR_VALUE_1=/&#([a-zA-Z0-9]*);?/gim;var REGEXP_ATTR_VALUE_COLON=/:?/gim;var REGEXP_ATTR_VALUE_NEWLINE=/&newline;?/gim;var REGEXP_DEFAULT_ON_TAG_ATTR_3=/\/\*|\*\//gm;var REGEXP_DEFAULT_ON_TAG_ATTR_4=/((j\s*a\s*v\s*a|v\s*b|l\s*i\s*v\s*e)\s*s\s*c\s*r\s*i\s*p\s*t\s*|m\s*o\s*c\s*h\s*a)\:/gi;var REGEXP_DEFAULT_ON_TAG_ATTR_5=/^[\s"'`]*(d\s*a\s*t\s*a\s*)\:/gi;var REGEXP_DEFAULT_ON_TAG_ATTR_6=/^[\s"'`]*(d\s*a\s*t\s*a\s*)\:\s*image\//gi;var REGEXP_DEFAULT_ON_TAG_ATTR_7=/e\s*x\s*p\s*r\s*e\s*s\s*s\s*i\s*o\s*n\s*\(.*/gi;var REGEXP_DEFAULT_ON_TAG_ATTR_8=/u\s*r\s*l\s*\(.*/gi;function escapeQuote(str){return str.replace(REGEXP_QUOTE,""");} -function unescapeQuote(str){return str.replace(REGEXP_QUOTE_2,'"');} -function escapeHtmlEntities(str){return str.replace(REGEXP_ATTR_VALUE_1,function replaceUnicode(str,code){return code[0]==="x"||code[0]==="X"?String.fromCharCode(parseInt(code.substr(1),16)):String.fromCharCode(parseInt(code,10));});} -function escapeDangerHtml5Entities(str){return str.replace(REGEXP_ATTR_VALUE_COLON,":").replace(REGEXP_ATTR_VALUE_NEWLINE," ");} -function clearNonPrintableCharacter(str){var str2="";for(var i=0,len=str.length;i/g;function stripBlankChar(html){var chars=html.split("");chars=chars.filter(function(char){var c=char.charCodeAt(0);if(c===127)return false;if(c<=31){if(c===10||c===13)return true;return false;} -return true;});return chars.join("");} -exports.whiteList=getDefaultWhiteList();exports.getDefaultWhiteList=getDefaultWhiteList;exports.onTag=onTag;exports.onIgnoreTag=onIgnoreTag;exports.onTagAttr=onTagAttr;exports.onIgnoreTagAttr=onIgnoreTagAttr;exports.safeAttrValue=safeAttrValue;exports.escapeHtml=escapeHtml;exports.escapeQuote=escapeQuote;exports.unescapeQuote=unescapeQuote;exports.escapeHtmlEntities=escapeHtmlEntities;exports.escapeDangerHtml5Entities=escapeDangerHtml5Entities;exports.clearNonPrintableCharacter=clearNonPrintableCharacter;exports.friendlyAttrValue=friendlyAttrValue;exports.escapeAttrValue=escapeAttrValue;exports.onIgnoreTagStripAll=onIgnoreTagStripAll;exports.StripTagBody=StripTagBody;exports.stripCommentTag=stripCommentTag;exports.stripBlankChar=stripBlankChar;exports.cssFilter=defaultCSSFilter;exports.getDefaultCSSWhiteList=getDefaultCSSWhiteList;},{"./util":4,"cssfilter":8}],2:[function(require,module,exports){var DEFAULT=require("./default");var parser=require("./parser");var FilterXSS=require("./xss");function filterXSS(html,options){var xss=new FilterXSS(options);return xss.process(html);} -exports=module.exports=filterXSS;exports.filterXSS=filterXSS;exports.FilterXSS=FilterXSS;for(var i in DEFAULT)exports[i]=DEFAULT[i];for(var i in parser)exports[i]=parser[i];if(typeof window!=="undefined"){window.filterXSS=module.exports;} -function isWorkerEnv(){return typeof self!=='undefined'&&typeof DedicatedWorkerGlobalScope!=='undefined'&&self instanceof DedicatedWorkerGlobalScope;} -if(isWorkerEnv()){self.filterXSS=module.exports;}},{"./default":1,"./parser":3,"./xss":5}],3:[function(require,module,exports){var _=require("./util");function getTagName(html){var i=_.spaceIndex(html);if(i===-1){var tagName=html.slice(1,-1);}else{var tagName=html.slice(1,i+1);} -tagName=_.trim(tagName).toLowerCase();if(tagName.slice(0,1)==="/")tagName=tagName.slice(1);if(tagName.slice(-1)==="/")tagName=tagName.slice(0,-1);return tagName;} -function isClosing(html){return html.slice(0,2)===""){rethtml+=escapeHtml(html.slice(lastPos,tagStart));currentHtml=html.slice(tagStart,currentPos+1);currentTagName=getTagName(currentHtml);rethtml+=onTag(tagStart,rethtml.length,currentTagName,currentHtml,isClosing(currentHtml));lastPos=currentPos+1;tagStart=false;continue;} -if((c==='"'||c==="'")&&html.charAt(currentPos-1)==="="){quoteStart=c;continue;}}else{if(c===quoteStart){quoteStart=false;continue;}}}} -if(lastPos0;i--){var c=str[i];if(c===" ")continue;if(c==="=")return i;return-1;}} -function isQuoteWrapString(text){if((text[0]==='"'&&text[text.length-1]==='"')||(text[0]==="'"&&text[text.length-1]==="'")){return true;}else{return false;}} -function stripQuoteWrap(text){if(isQuoteWrapString(text)){return text.substr(1,text.length-2);}else{return text;}} -exports.parseTag=parseTag;exports.parseAttr=parseAttr;},{"./util":4}],4:[function(require,module,exports){module.exports={indexOf:function(arr,item){var i,j;if(Array.prototype.indexOf){return arr.indexOf(item);} -for(i=0,j=arr.length;i";} -var attrs=getAttrs(html);var whiteAttrList=whiteList[tag];var attrsHtml=parseAttr(attrs.html,function(name,value){var isWhiteAttr=_.indexOf(whiteAttrList,name)!==-1;var ret=onTagAttr(tag,name,value,isWhiteAttr);if(!isNull(ret))return ret;if(isWhiteAttr){value=safeAttrValue(tag,name,value,cssFilter);if(value){return name+'="'+value+'"';}else{return name;}}else{var ret=onIgnoreTagAttr(tag,name,value,isWhiteAttr);if(!isNull(ret))return ret;return;}});var html="<"+tag;if(attrsHtml)html+=" "+attrsHtml;if(attrs.closing)html+=" /";html+=">";return html;}else{var ret=onIgnoreTag(tag,html,info);if(!isNull(ret))return ret;return escapeHtml(html);}},escapeHtml);if(stripIgnoreTagBody){retHtml=stripIgnoreTagBody.remove(retHtml);} -return retHtml;};module.exports=FilterXSS;},{"./default":1,"./parser":3,"./util":4,"cssfilter":8}],6:[function(require,module,exports){var DEFAULT=require('./default');var parseStyle=require('./parser');var _=require('./util');function isNull(obj){return(obj===undefined||obj===null);} -function shallowCopyObject(obj){var ret={};for(var i in obj){ret[i]=obj[i];} -return ret;} -function FilterCSS(options){options=shallowCopyObject(options||{});options.whiteList=options.whiteList||DEFAULT.whiteList;options.onAttr=options.onAttr||DEFAULT.onAttr;options.onIgnoreAttr=options.onIgnoreAttr||DEFAULT.onIgnoreAttr;options.safeAttrValue=options.safeAttrValue||DEFAULT.safeAttrValue;this.options=options;} -FilterCSS.prototype.process=function(css){css=css||'';css=css.toString();if(!css)return'';var me=this;var options=me.options;var whiteList=options.whiteList;var onAttr=options.onAttr;var onIgnoreAttr=options.onIgnoreAttr;var safeAttrValue=options.safeAttrValue;var retCSS=parseStyle(css,function(sourcePosition,position,name,value,source){var check=whiteList[name];var isWhite=false;if(check===true)isWhite=check;else if(typeof check==='function')isWhite=check(value);else if(check instanceof RegExp)isWhite=check.test(value);if(isWhite!==true)isWhite=false;value=safeAttrValue(name,value);if(!value)return;var opts={position:position,sourcePosition:sourcePosition,source:source,isWhite:isWhite};if(isWhite){var ret=onAttr(name,value,opts);if(isNull(ret)){return name+':'+value;}else{return ret;}}else{var ret=onIgnoreAttr(name,value,opts);if(!isNull(ret)){return ret;}}});return retCSS;};module.exports=FilterCSS;},{"./default":7,"./parser":9,"./util":10}],7:[function(require,module,exports){function getDefaultWhiteList(){var whiteList={};whiteList['align-content']=false;whiteList['align-items']=false;whiteList['align-self']=false;whiteList['alignment-adjust']=false;whiteList['alignment-baseline']=false;whiteList['all']=false;whiteList['anchor-point']=false;whiteList['animation']=false;whiteList['animation-delay']=false;whiteList['animation-direction']=false;whiteList['animation-duration']=false;whiteList['animation-fill-mode']=false;whiteList['animation-iteration-count']=false;whiteList['animation-name']=false;whiteList['animation-play-state']=false;whiteList['animation-timing-function']=false;whiteList['azimuth']=false;whiteList['backface-visibility']=false;whiteList['background']=true;whiteList['background-attachment']=true;whiteList['background-clip']=true;whiteList['background-color']=true;whiteList['background-image']=true;whiteList['background-origin']=true;whiteList['background-position']=true;whiteList['background-repeat']=true;whiteList['background-size']=true;whiteList['baseline-shift']=false;whiteList['binding']=false;whiteList['bleed']=false;whiteList['bookmark-label']=false;whiteList['bookmark-level']=false;whiteList['bookmark-state']=false;whiteList['border']=true;whiteList['border-bottom']=true;whiteList['border-bottom-color']=true;whiteList['border-bottom-left-radius']=true;whiteList['border-bottom-right-radius']=true;whiteList['border-bottom-style']=true;whiteList['border-bottom-width']=true;whiteList['border-collapse']=true;whiteList['border-color']=true;whiteList['border-image']=true;whiteList['border-image-outset']=true;whiteList['border-image-repeat']=true;whiteList['border-image-slice']=true;whiteList['border-image-source']=true;whiteList['border-image-width']=true;whiteList['border-left']=true;whiteList['border-left-color']=true;whiteList['border-left-style']=true;whiteList['border-left-width']=true;whiteList['border-radius']=true;whiteList['border-right']=true;whiteList['border-right-color']=true;whiteList['border-right-style']=true;whiteList['border-right-width']=true;whiteList['border-spacing']=true;whiteList['border-style']=true;whiteList['border-top']=true;whiteList['border-top-color']=true;whiteList['border-top-left-radius']=true;whiteList['border-top-right-radius']=true;whiteList['border-top-style']=true;whiteList['border-top-width']=true;whiteList['border-width']=true;whiteList['bottom']=false;whiteList['box-decoration-break']=true;whiteList['box-shadow']=true;whiteList['box-sizing']=true;whiteList['box-snap']=true;whiteList['box-suppress']=true;whiteList['break-after']=true;whiteList['break-before']=true;whiteList['break-inside']=true;whiteList['caption-side']=false;whiteList['chains']=false;whiteList['clear']=true;whiteList['clip']=false;whiteList['clip-path']=false;whiteList['clip-rule']=false;whiteList['color']=true;whiteList['color-interpolation-filters']=true;whiteList['column-count']=false;whiteList['column-fill']=false;whiteList['column-gap']=false;whiteList['column-rule']=false;whiteList['column-rule-color']=false;whiteList['column-rule-style']=false;whiteList['column-rule-width']=false;whiteList['column-span']=false;whiteList['column-width']=false;whiteList['columns']=false;whiteList['contain']=false;whiteList['content']=false;whiteList['counter-increment']=false;whiteList['counter-reset']=false;whiteList['counter-set']=false;whiteList['crop']=false;whiteList['cue']=false;whiteList['cue-after']=false;whiteList['cue-before']=false;whiteList['cursor']=false;whiteList['direction']=false;whiteList['display']=true;whiteList['display-inside']=true;whiteList['display-list']=true;whiteList['display-outside']=true;whiteList['dominant-baseline']=false;whiteList['elevation']=false;whiteList['empty-cells']=false;whiteList['filter']=false;whiteList['flex']=false;whiteList['flex-basis']=false;whiteList['flex-direction']=false;whiteList['flex-flow']=false;whiteList['flex-grow']=false;whiteList['flex-shrink']=false;whiteList['flex-wrap']=false;whiteList['float']=false;whiteList['float-offset']=false;whiteList['flood-color']=false;whiteList['flood-opacity']=false;whiteList['flow-from']=false;whiteList['flow-into']=false;whiteList['font']=true;whiteList['font-family']=true;whiteList['font-feature-settings']=true;whiteList['font-kerning']=true;whiteList['font-language-override']=true;whiteList['font-size']=true;whiteList['font-size-adjust']=true;whiteList['font-stretch']=true;whiteList['font-style']=true;whiteList['font-synthesis']=true;whiteList['font-variant']=true;whiteList['font-variant-alternates']=true;whiteList['font-variant-caps']=true;whiteList['font-variant-east-asian']=true;whiteList['font-variant-ligatures']=true;whiteList['font-variant-numeric']=true;whiteList['font-variant-position']=true;whiteList['font-weight']=true;whiteList['grid']=false;whiteList['grid-area']=false;whiteList['grid-auto-columns']=false;whiteList['grid-auto-flow']=false;whiteList['grid-auto-rows']=false;whiteList['grid-column']=false;whiteList['grid-column-end']=false;whiteList['grid-column-start']=false;whiteList['grid-row']=false;whiteList['grid-row-end']=false;whiteList['grid-row-start']=false;whiteList['grid-template']=false;whiteList['grid-template-areas']=false;whiteList['grid-template-columns']=false;whiteList['grid-template-rows']=false;whiteList['hanging-punctuation']=false;whiteList['height']=true;whiteList['hyphens']=false;whiteList['icon']=false;whiteList['image-orientation']=false;whiteList['image-resolution']=false;whiteList['ime-mode']=false;whiteList['initial-letters']=false;whiteList['inline-box-align']=false;whiteList['justify-content']=false;whiteList['justify-items']=false;whiteList['justify-self']=false;whiteList['left']=false;whiteList['letter-spacing']=true;whiteList['lighting-color']=true;whiteList['line-box-contain']=false;whiteList['line-break']=false;whiteList['line-grid']=false;whiteList['line-height']=false;whiteList['line-snap']=false;whiteList['line-stacking']=false;whiteList['line-stacking-ruby']=false;whiteList['line-stacking-shift']=false;whiteList['line-stacking-strategy']=false;whiteList['list-style']=true;whiteList['list-style-image']=true;whiteList['list-style-position']=true;whiteList['list-style-type']=true;whiteList['margin']=true;whiteList['margin-bottom']=true;whiteList['margin-left']=true;whiteList['margin-right']=true;whiteList['margin-top']=true;whiteList['marker-offset']=false;whiteList['marker-side']=false;whiteList['marks']=false;whiteList['mask']=false;whiteList['mask-box']=false;whiteList['mask-box-outset']=false;whiteList['mask-box-repeat']=false;whiteList['mask-box-slice']=false;whiteList['mask-box-source']=false;whiteList['mask-box-width']=false;whiteList['mask-clip']=false;whiteList['mask-image']=false;whiteList['mask-origin']=false;whiteList['mask-position']=false;whiteList['mask-repeat']=false;whiteList['mask-size']=false;whiteList['mask-source-type']=false;whiteList['mask-type']=false;whiteList['max-height']=true;whiteList['max-lines']=false;whiteList['max-width']=true;whiteList['min-height']=true;whiteList['min-width']=true;whiteList['move-to']=false;whiteList['nav-down']=false;whiteList['nav-index']=false;whiteList['nav-left']=false;whiteList['nav-right']=false;whiteList['nav-up']=false;whiteList['object-fit']=false;whiteList['object-position']=false;whiteList['opacity']=false;whiteList['order']=false;whiteList['orphans']=false;whiteList['outline']=false;whiteList['outline-color']=false;whiteList['outline-offset']=false;whiteList['outline-style']=false;whiteList['outline-width']=false;whiteList['overflow']=false;whiteList['overflow-wrap']=false;whiteList['overflow-x']=false;whiteList['overflow-y']=false;whiteList['padding']=true;whiteList['padding-bottom']=true;whiteList['padding-left']=true;whiteList['padding-right']=true;whiteList['padding-top']=true;whiteList['page']=false;whiteList['page-break-after']=false;whiteList['page-break-before']=false;whiteList['page-break-inside']=false;whiteList['page-policy']=false;whiteList['pause']=false;whiteList['pause-after']=false;whiteList['pause-before']=false;whiteList['perspective']=false;whiteList['perspective-origin']=false;whiteList['pitch']=false;whiteList['pitch-range']=false;whiteList['play-during']=false;whiteList['position']=false;whiteList['presentation-level']=false;whiteList['quotes']=false;whiteList['region-fragment']=false;whiteList['resize']=false;whiteList['rest']=false;whiteList['rest-after']=false;whiteList['rest-before']=false;whiteList['richness']=false;whiteList['right']=false;whiteList['rotation']=false;whiteList['rotation-point']=false;whiteList['ruby-align']=false;whiteList['ruby-merge']=false;whiteList['ruby-position']=false;whiteList['shape-image-threshold']=false;whiteList['shape-outside']=false;whiteList['shape-margin']=false;whiteList['size']=false;whiteList['speak']=false;whiteList['speak-as']=false;whiteList['speak-header']=false;whiteList['speak-numeral']=false;whiteList['speak-punctuation']=false;whiteList['speech-rate']=false;whiteList['stress']=false;whiteList['string-set']=false;whiteList['tab-size']=false;whiteList['table-layout']=false;whiteList['text-align']=true;whiteList['text-align-last']=true;whiteList['text-combine-upright']=true;whiteList['text-decoration']=true;whiteList['text-decoration-color']=true;whiteList['text-decoration-line']=true;whiteList['text-decoration-skip']=true;whiteList['text-decoration-style']=true;whiteList['text-emphasis']=true;whiteList['text-emphasis-color']=true;whiteList['text-emphasis-position']=true;whiteList['text-emphasis-style']=true;whiteList['text-height']=true;whiteList['text-indent']=true;whiteList['text-justify']=true;whiteList['text-orientation']=true;whiteList['text-overflow']=true;whiteList['text-shadow']=true;whiteList['text-space-collapse']=true;whiteList['text-transform']=true;whiteList['text-underline-position']=true;whiteList['text-wrap']=true;whiteList['top']=false;whiteList['transform']=false;whiteList['transform-origin']=false;whiteList['transform-style']=false;whiteList['transition']=false;whiteList['transition-delay']=false;whiteList['transition-duration']=false;whiteList['transition-property']=false;whiteList['transition-timing-function']=false;whiteList['unicode-bidi']=false;whiteList['vertical-align']=false;whiteList['visibility']=false;whiteList['voice-balance']=false;whiteList['voice-duration']=false;whiteList['voice-family']=false;whiteList['voice-pitch']=false;whiteList['voice-range']=false;whiteList['voice-rate']=false;whiteList['voice-stress']=false;whiteList['voice-volume']=false;whiteList['volume']=false;whiteList['white-space']=false;whiteList['widows']=false;whiteList['width']=true;whiteList['will-change']=false;whiteList['word-break']=true;whiteList['word-spacing']=true;whiteList['word-wrap']=true;whiteList['wrap-flow']=false;whiteList['wrap-through']=false;whiteList['writing-mode']=false;whiteList['z-index']=false;return whiteList;} -function onAttr(name,value,options){} -function onIgnoreAttr(name,value,options){} -var REGEXP_URL_JAVASCRIPT=/javascript\s*\:/img;function safeAttrValue(name,value){if(REGEXP_URL_JAVASCRIPT.test(value))return'';return value;} -exports.whiteList=getDefaultWhiteList();exports.getDefaultWhiteList=getDefaultWhiteList;exports.onAttr=onAttr;exports.onIgnoreAttr=onIgnoreAttr;exports.safeAttrValue=safeAttrValue;},{}],8:[function(require,module,exports){var DEFAULT=require('./default');var FilterCSS=require('./css');function filterCSS(html,options){var xss=new FilterCSS(options);return xss.process(html);} -exports=module.exports=filterCSS;exports.FilterCSS=FilterCSS;for(var i in DEFAULT)exports[i]=DEFAULT[i];if(typeof window!=='undefined'){window.filterCSS=module.exports;}},{"./css":6,"./default":7}],9:[function(require,module,exports){var _=require('./util');function parseStyle(css,onAttr){css=_.trimRight(css);if(css[css.length-1]!==';')css+=';';var cssLength=css.length;var isParenthesisOpen=false;var lastPos=0;var i=0;var retCSS='';function addNewAttr(){if(!isParenthesisOpen){var source=_.trim(css.slice(lastPos,i));var j=source.indexOf(':');if(j!==-1){var name=_.trim(source.slice(0,j));var value=_.trim(source.slice(j+1));if(name){var ret=onAttr(lastPos,retCSS.length,name,value,source);if(ret)retCSS+=ret+'; ';}}} -lastPos=i+1;} -for(;i"` before returns + value = escapeAttrValue(value); + return value; +} + +// RegExp list +var REGEXP_LT = //g; +var REGEXP_QUOTE = /"/g; +var REGEXP_QUOTE_2 = /"/g; +var REGEXP_ATTR_VALUE_1 = /&#([a-zA-Z0-9]*);?/gim; +var REGEXP_ATTR_VALUE_COLON = /:?/gim; +var REGEXP_ATTR_VALUE_NEWLINE = /&newline;?/gim; +var REGEXP_DEFAULT_ON_TAG_ATTR_3 = /\/\*|\*\//gm; +var REGEXP_DEFAULT_ON_TAG_ATTR_4 = /((j\s*a\s*v\s*a|v\s*b|l\s*i\s*v\s*e)\s*s\s*c\s*r\s*i\s*p\s*t\s*|m\s*o\s*c\s*h\s*a)\:/gi; +var REGEXP_DEFAULT_ON_TAG_ATTR_5 = /^[\s"'`]*(d\s*a\s*t\s*a\s*)\:/gi; +var REGEXP_DEFAULT_ON_TAG_ATTR_6 = /^[\s"'`]*(d\s*a\s*t\s*a\s*)\:\s*image\//gi; +var REGEXP_DEFAULT_ON_TAG_ATTR_7 = /e\s*x\s*p\s*r\s*e\s*s\s*s\s*i\s*o\s*n\s*\(.*/gi; +var REGEXP_DEFAULT_ON_TAG_ATTR_8 = /u\s*r\s*l\s*\(.*/gi; + +/** + * escape doube quote + * + * @param {String} str + * @return {String} str + */ +function escapeQuote(str) { + return str.replace(REGEXP_QUOTE, """); +} + +/** + * unescape double quote + * + * @param {String} str + * @return {String} str + */ +function unescapeQuote(str) { + return str.replace(REGEXP_QUOTE_2, '"'); +} + +/** + * escape html entities + * + * @param {String} str + * @return {String} + */ +function escapeHtmlEntities(str) { + return str.replace(REGEXP_ATTR_VALUE_1, function replaceUnicode(str, code) { + return code[0] === "x" || code[0] === "X" + ? String.fromCharCode(parseInt(code.substr(1), 16)) + : String.fromCharCode(parseInt(code, 10)); + }); +} + +/** + * escape html5 new danger entities + * + * @param {String} str + * @return {String} + */ +function escapeDangerHtml5Entities(str) { + return str + .replace(REGEXP_ATTR_VALUE_COLON, ":") + .replace(REGEXP_ATTR_VALUE_NEWLINE, " "); +} + +/** + * clear nonprintable characters + * + * @param {String} str + * @return {String} + */ +function clearNonPrintableCharacter(str) { + var str2 = ""; + for (var i = 0, len = str.length; i < len; i++) { + str2 += str.charCodeAt(i) < 32 ? " " : str.charAt(i); + } + return _.trim(str2); +} + +/** + * get friendly attribute value + * + * @param {String} str + * @return {String} + */ +function friendlyAttrValue(str) { + str = unescapeQuote(str); + str = escapeHtmlEntities(str); + str = escapeDangerHtml5Entities(str); + str = clearNonPrintableCharacter(str); + return str; +} + +/** + * unescape attribute value + * + * @param {String} str + * @return {String} + */ +function escapeAttrValue(str) { + str = escapeQuote(str); + str = escapeHtml(str); + return str; +} + +/** + * `onIgnoreTag` function for removing all the tags that are not in whitelist + */ +function onIgnoreTagStripAll() { + return ""; +} + +/** + * remove tag body + * specify a `tags` list, if the tag is not in the `tags` list then process by the specify function (optional) + * + * @param {array} tags + * @param {function} next + */ +function StripTagBody(tags, next) { + if (typeof next !== "function") { + next = function() {}; + } + + var isRemoveAllTag = !Array.isArray(tags); + function isRemoveTag(tag) { + if (isRemoveAllTag) return true; + return _.indexOf(tags, tag) !== -1; + } + + var removeList = []; + var posStart = false; + + return { + onIgnoreTag: function(tag, html, options) { + if (isRemoveTag(tag)) { + if (options.isClosing) { + var ret = "[/removed]"; + var end = options.position + ret.length; + removeList.push([ + posStart !== false ? posStart : options.position, + end + ]); + posStart = false; + return ret; + } else { + if (!posStart) { + posStart = options.position; + } + return "[removed]"; + } + } else { + return next(tag, html, options); + } + }, + remove: function(html) { + var rethtml = ""; + var lastPos = 0; + _.forEach(removeList, function(pos) { + rethtml += html.slice(lastPos, pos[0]); + lastPos = pos[1]; + }); + rethtml += html.slice(lastPos); + return rethtml; + } + }; +} + +/** + * remove html comments + * + * @param {String} html + * @return {String} + */ +function stripCommentTag(html) { + return html.replace(STRIP_COMMENT_TAG_REGEXP, ""); +} +var STRIP_COMMENT_TAG_REGEXP = //g; + +/** + * remove invisible characters + * + * @param {String} html + * @return {String} + */ +function stripBlankChar(html) { + var chars = html.split(""); + chars = chars.filter(function(char) { + var c = char.charCodeAt(0); + if (c === 127) return false; + if (c <= 31) { + if (c === 10 || c === 13) return true; + return false; + } + return true; + }); + return chars.join(""); +} + +exports.whiteList = getDefaultWhiteList(); +exports.getDefaultWhiteList = getDefaultWhiteList; +exports.onTag = onTag; +exports.onIgnoreTag = onIgnoreTag; +exports.onTagAttr = onTagAttr; +exports.onIgnoreTagAttr = onIgnoreTagAttr; +exports.safeAttrValue = safeAttrValue; +exports.escapeHtml = escapeHtml; +exports.escapeQuote = escapeQuote; +exports.unescapeQuote = unescapeQuote; +exports.escapeHtmlEntities = escapeHtmlEntities; +exports.escapeDangerHtml5Entities = escapeDangerHtml5Entities; +exports.clearNonPrintableCharacter = clearNonPrintableCharacter; +exports.friendlyAttrValue = friendlyAttrValue; +exports.escapeAttrValue = escapeAttrValue; +exports.onIgnoreTagStripAll = onIgnoreTagStripAll; +exports.StripTagBody = StripTagBody; +exports.stripCommentTag = stripCommentTag; +exports.stripBlankChar = stripBlankChar; +exports.cssFilter = defaultCSSFilter; +exports.getDefaultCSSWhiteList = getDefaultCSSWhiteList; + +},{"./util":4,"cssfilter":8}],2:[function(require,module,exports){ +/** + * xss + * + * @author Zongmin Lei + */ + +var DEFAULT = require("./default"); +var parser = require("./parser"); +var FilterXSS = require("./xss"); + +/** + * filter xss function + * + * @param {String} html + * @param {Object} options { whiteList, onTag, onTagAttr, onIgnoreTag, onIgnoreTagAttr, safeAttrValue, escapeHtml } + * @return {String} + */ +function filterXSS(html, options) { + var xss = new FilterXSS(options); + return xss.process(html); +} + +exports = module.exports = filterXSS; +exports.filterXSS = filterXSS; +exports.FilterXSS = FilterXSS; +for (var i in DEFAULT) exports[i] = DEFAULT[i]; +for (var i in parser) exports[i] = parser[i]; + +// using `xss` on the browser, output `filterXSS` to the globals +if (typeof window !== "undefined") { + window.filterXSS = module.exports; +} + +// using `xss` on the WebWorker, output `filterXSS` to the globals +function isWorkerEnv() { + return typeof self !== 'undefined' && typeof DedicatedWorkerGlobalScope !== 'undefined' && self instanceof DedicatedWorkerGlobalScope; +} +if (isWorkerEnv()) { + self.filterXSS = module.exports; +} + +},{"./default":1,"./parser":3,"./xss":5}],3:[function(require,module,exports){ +/** + * Simple HTML Parser + * + * @author Zongmin Lei + */ + +var _ = require("./util"); + +/** + * get tag name + * + * @param {String} html e.g. '' + * @return {String} + */ +function getTagName(html) { + var i = _.spaceIndex(html); + if (i === -1) { + var tagName = html.slice(1, -1); + } else { + var tagName = html.slice(1, i + 1); + } + tagName = _.trim(tagName).toLowerCase(); + if (tagName.slice(0, 1) === "/") tagName = tagName.slice(1); + if (tagName.slice(-1) === "/") tagName = tagName.slice(0, -1); + return tagName; +} + +/** + * is close tag? + * + * @param {String} html 如：'' + * @return {Boolean} + */ +function isClosing(html) { + return html.slice(0, 2) === "") { + rethtml += escapeHtml(html.slice(lastPos, tagStart)); + currentHtml = html.slice(tagStart, currentPos + 1); + currentTagName = getTagName(currentHtml); + rethtml += onTag( + tagStart, + rethtml.length, + currentTagName, + currentHtml, + isClosing(currentHtml) + ); + lastPos = currentPos + 1; + tagStart = false; + continue; + } + if ((c === '"' || c === "'") && html.charAt(currentPos - 1) === "=") { + quoteStart = c; + continue; + } + } else { + if (c === quoteStart) { + quoteStart = false; + continue; + } + } + } + } + if (lastPos < html.length) { + rethtml += escapeHtml(html.substr(lastPos)); + } + + return rethtml; +} + +var REGEXP_ILLEGAL_ATTR_NAME = /[^a-zA-Z0-9_:\.\-]/gim; + +/** + * parse input attributes and returns processed attributes + * + * @param {String} html e.g. `href="#" target="_blank"` + * @param {Function} onAttr e.g. `function (name, value)` + * @return {String} + */ +function parseAttr(html, onAttr) { + "use strict"; + + var lastPos = 0; + var retAttrs = []; + var tmpName = false; + var len = html.length; + + function addAttr(name, value) { + name = _.trim(name); + name = name.replace(REGEXP_ILLEGAL_ATTR_NAME, "").toLowerCase(); + if (name.length < 1) return; + var ret = onAttr(name, value || ""); + if (ret) retAttrs.push(ret); + } + + // 逐个分析字符 + for (var i = 0; i < len; i++) { + var c = html.charAt(i); + var v, j; + if (tmpName === false && c === "=") { + tmpName = html.slice(lastPos, i); + lastPos = i + 1; + continue; + } + if (tmpName !== false) { + if ( + i === lastPos && + (c === '"' || c === "'") && + html.charAt(i - 1) === "=" + ) { + j = html.indexOf(c, i + 1); + if (j === -1) { + break; + } else { + v = _.trim(html.slice(lastPos + 1, j)); + addAttr(tmpName, v); + tmpName = false; + i = j; + lastPos = i + 1; + continue; + } + } + } + if (/\s|\n|\t/.test(c)) { + html = html.replace(/\s|\n|\t/g, " "); + if (tmpName === false) { + j = findNextEqual(html, i); + if (j === -1) { + v = _.trim(html.slice(lastPos, i)); + addAttr(v); + tmpName = false; + lastPos = i + 1; + continue; + } else { + i = j - 1; + continue; + } + } else { + j = findBeforeEqual(html, i - 1); + if (j === -1) { + v = _.trim(html.slice(lastPos, i)); + v = stripQuoteWrap(v); + addAttr(tmpName, v); + tmpName = false; + lastPos = i + 1; + continue; + } else { + continue; + } + } + } + } + + if (lastPos < html.length) { + if (tmpName === false) { + addAttr(html.slice(lastPos)); + } else { + addAttr(tmpName, stripQuoteWrap(_.trim(html.slice(lastPos)))); + } + } + + return _.trim(retAttrs.join(" ")); +} + +function findNextEqual(str, i) { + for (; i < str.length; i++) { + var c = str[i]; + if (c === " ") continue; + if (c === "=") return i; + return -1; + } +} + +function findBeforeEqual(str, i) { + for (; i > 0; i--) { + var c = str[i]; + if (c === " ") continue; + if (c === "=") return i; + return -1; + } +} + +function isQuoteWrapString(text) { + if ( + (text[0] === '"' && text[text.length - 1] === '"') || + (text[0] === "'" && text[text.length - 1] === "'") + ) { + return true; + } else { + return false; + } +} + +function stripQuoteWrap(text) { + if (isQuoteWrapString(text)) { + return text.substr(1, text.length - 2); + } else { + return text; + } +} + +exports.parseTag = parseTag; +exports.parseAttr = parseAttr; + +},{"./util":4}],4:[function(require,module,exports){ +module.exports = { + indexOf: function(arr, item) { + var i, j; + if (Array.prototype.indexOf) { + return arr.indexOf(item); + } + for (i = 0, j = arr.length; i < j; i++) { + if (arr[i] === item) { + return i; + } + } + return -1; + }, + forEach: function(arr, fn, scope) { + var i, j; + if (Array.prototype.forEach) { + return arr.forEach(fn, scope); + } + for (i = 0, j = arr.length; i < j; i++) { + fn.call(scope, arr[i], i, arr); + } + }, + trim: function(str) { + if (String.prototype.trim) { + return str.trim(); + } + return str.replace(/(^\s*)|(\s*$)/g, ""); + }, + spaceIndex: function(str) { + var reg = /\s|\n|\t/; + var match = reg.exec(str); + return match ? match.index : -1; + } +}; + +},{}],5:[function(require,module,exports){ +/** + * filter xss + * + * @author Zongmin Lei + */ + +var FilterCSS = require("cssfilter").FilterCSS; +var DEFAULT = require("./default"); +var parser = require("./parser"); +var parseTag = parser.parseTag; +var parseAttr = parser.parseAttr; +var _ = require("./util"); + +/** + * returns `true` if the input value is `undefined` or `null` + * + * @param {Object} obj + * @return {Boolean} + */ +function isNull(obj) { + return obj === undefined || obj === null; +} + +/** + * get attributes for a tag + * + * @param {String} html + * @return {Object} + * - {String} html + * - {Boolean} closing + */ +function getAttrs(html) { + var i = _.spaceIndex(html); + if (i === -1) { + return { + html: "", + closing: html[html.length - 2] === "/" + }; + } + html = _.trim(html.slice(i + 1, -1)); + var isClosing = html[html.length - 1] === "/"; + if (isClosing) html = _.trim(html.slice(0, -1)); + return { + html: html, + closing: isClosing + }; +} + +/** + * shallow copy + * + * @param {Object} obj + * @return {Object} + */ +function shallowCopyObject(obj) { + var ret = {}; + for (var i in obj) { + ret[i] = obj[i]; + } + return ret; +} + +/** + * FilterXSS class + * + * @param {Object} options + * whiteList, onTag, onTagAttr, onIgnoreTag, + * onIgnoreTagAttr, safeAttrValue, escapeHtml + * stripIgnoreTagBody, allowCommentTag, stripBlankChar + * css{whiteList, onAttr, onIgnoreAttr} `css=false` means don't use `cssfilter` + */ +function FilterXSS(options) { + options = shallowCopyObject(options || {}); + + if (options.stripIgnoreTag) { + if (options.onIgnoreTag) { + console.error( + 'Notes: cannot use these two options "stripIgnoreTag" and "onIgnoreTag" at the same time' + ); + } + options.onIgnoreTag = DEFAULT.onIgnoreTagStripAll; + } + + options.whiteList = options.whiteList || DEFAULT.whiteList; + options.onTag = options.onTag || DEFAULT.onTag; + options.onTagAttr = options.onTagAttr || DEFAULT.onTagAttr; + options.onIgnoreTag = options.onIgnoreTag || DEFAULT.onIgnoreTag; + options.onIgnoreTagAttr = options.onIgnoreTagAttr || DEFAULT.onIgnoreTagAttr; + options.safeAttrValue = options.safeAttrValue || DEFAULT.safeAttrValue; + options.escapeHtml = options.escapeHtml || DEFAULT.escapeHtml; + this.options = options; + + if (options.css === false) { + this.cssFilter = false; + } else { + options.css = options.css || {}; + this.cssFilter = new FilterCSS(options.css); + } +} + +/** + * start process and returns result + * + * @param {String} html + * @return {String} + */ +FilterXSS.prototype.process = function(html) { + // compatible with the input + html = html || ""; + html = html.toString(); + if (!html) return ""; + + var me = this; + var options = me.options; + var whiteList = options.whiteList; + var onTag = options.onTag; + var onIgnoreTag = options.onIgnoreTag; + var onTagAttr = options.onTagAttr; + var onIgnoreTagAttr = options.onIgnoreTagAttr; + var safeAttrValue = options.safeAttrValue; + var escapeHtml = options.escapeHtml; + var cssFilter = me.cssFilter; + + // remove invisible characters + if (options.stripBlankChar) { + html = DEFAULT.stripBlankChar(html); + } + + // remove html comments + if (!options.allowCommentTag) { + html = DEFAULT.stripCommentTag(html); + } + + // if enable stripIgnoreTagBody + var stripIgnoreTagBody = false; + if (options.stripIgnoreTagBody) { + var stripIgnoreTagBody = DEFAULT.StripTagBody( + options.stripIgnoreTagBody, + onIgnoreTag + ); + onIgnoreTag = stripIgnoreTagBody.onIgnoreTag; + } + + var retHtml = parseTag( + html, + function(sourcePosition, position, tag, html, isClosing) { + var info = { + sourcePosition: sourcePosition, + position: position, + isClosing: isClosing, + isWhite: whiteList.hasOwnProperty(tag) + }; + + // call `onTag()` + var ret = onTag(tag, html, info); + if (!isNull(ret)) return ret; + + if (info.isWhite) { + if (info.isClosing) { + return ""; + } + + var attrs = getAttrs(html); + var whiteAttrList = whiteList[tag]; + var attrsHtml = parseAttr(attrs.html, function(name, value) { + // call `onTagAttr()` + var isWhiteAttr = _.indexOf(whiteAttrList, name) !== -1; + var ret = onTagAttr(tag, name, value, isWhiteAttr); + if (!isNull(ret)) return ret; + + if (isWhiteAttr) { + // call `safeAttrValue()` + value = safeAttrValue(tag, name, value, cssFilter); + if (value) { + return name + '="' + value + '"'; + } else { + return name; + } + } else { + // call `onIgnoreTagAttr()` + var ret = onIgnoreTagAttr(tag, name, value, isWhiteAttr); + if (!isNull(ret)) return ret; + return; + } + }); + + // build new tag html + var html = "<" + tag; + if (attrsHtml) html += " " + attrsHtml; + if (attrs.closing) html += " /"; + html += ">"; + return html; + } else { + // call `onIgnoreTag()` + var ret = onIgnoreTag(tag, html, info); + if (!isNull(ret)) return ret; + return escapeHtml(html); + } + }, + escapeHtml + ); + + // if enable stripIgnoreTagBody + if (stripIgnoreTagBody) { + retHtml = stripIgnoreTagBody.remove(retHtml); + } + + return retHtml; +}; + +module.exports = FilterXSS; + +},{"./default":1,"./parser":3,"./util":4,"cssfilter":8}],6:[function(require,module,exports){ +/** + * cssfilter + * + * @author 老雷 + */ + +var DEFAULT = require('./default'); +var parseStyle = require('./parser'); +var _ = require('./util'); + + +/** + * 返回值是否为空 + * + * @param {Object} obj + * @return {Boolean} + */ +function isNull (obj) { + return (obj === undefined || obj === null); +} + +/** + * 浅拷贝对象 + * + * @param {Object} obj + * @return {Object} + */ +function shallowCopyObject (obj) { + var ret = {}; + for (var i in obj) { + ret[i] = obj[i]; + } + return ret; +} + +/** + * 创建CSS过滤器 + * + * @param {Object} options + * - {Object} whiteList + * - {Function} onAttr + * - {Function} onIgnoreAttr + * - {Function} safeAttrValue + */ +function FilterCSS (options) { + options = shallowCopyObject(options || {}); + options.whiteList = options.whiteList || DEFAULT.whiteList; + options.onAttr = options.onAttr || DEFAULT.onAttr; + options.onIgnoreAttr = options.onIgnoreAttr || DEFAULT.onIgnoreAttr; + options.safeAttrValue = options.safeAttrValue || DEFAULT.safeAttrValue; + this.options = options; +} + +FilterCSS.prototype.process = function (css) { + // 兼容各种奇葩输入 + css = css || ''; + css = css.toString(); + if (!css) return ''; + + var me = this; + var options = me.options; + var whiteList = options.whiteList; + var onAttr = options.onAttr; + var onIgnoreAttr = options.onIgnoreAttr; + var safeAttrValue = options.safeAttrValue; + + var retCSS = parseStyle(css, function (sourcePosition, position, name, value, source) { + + var check = whiteList[name]; + var isWhite = false; + if (check === true) isWhite = check; + else if (typeof check === 'function') isWhite = check(value); + else if (check instanceof RegExp) isWhite = check.test(value); + if (isWhite !== true) isWhite = false; + + // 如果过滤后 value 为空则直接忽略 + value = safeAttrValue(name, value); + if (!value) return; + + var opts = { + position: position, + sourcePosition: sourcePosition, + source: source, + isWhite: isWhite + }; + + if (isWhite) { + + var ret = onAttr(name, value, opts); + if (isNull(ret)) { + return name + ':' + value; + } else { + return ret; + } + + } else { + + var ret = onIgnoreAttr(name, value, opts); + if (!isNull(ret)) { + return ret; + } + + } + }); + + return retCSS; +}; + + +module.exports = FilterCSS; + +},{"./default":7,"./parser":9,"./util":10}],7:[function(require,module,exports){ +/** + * cssfilter + * + * @author 老雷 + */ + +function getDefaultWhiteList () { + // 白名单值说明： + // true: 允许该属性 + // Function: function (val) { } 返回true表示允许该属性，其他值均表示不允许 + // RegExp: regexp.test(val) 返回true表示允许该属性，其他值均表示不允许 + // 除上面列出的值外均表示不允许 + var whiteList = {}; + + whiteList['align-content'] = false; // default: auto + whiteList['align-items'] = false; // default: auto + whiteList['align-self'] = false; // default: auto + whiteList['alignment-adjust'] = false; // default: auto + whiteList['alignment-baseline'] = false; // default: baseline + whiteList['all'] = false; // default: depending on individual properties + whiteList['anchor-point'] = false; // default: none + whiteList['animation'] = false; // default: depending on individual properties + whiteList['animation-delay'] = false; // default: 0 + whiteList['animation-direction'] = false; // default: normal + whiteList['animation-duration'] = false; // default: 0 + whiteList['animation-fill-mode'] = false; // default: none + whiteList['animation-iteration-count'] = false; // default: 1 + whiteList['animation-name'] = false; // default: none + whiteList['animation-play-state'] = false; // default: running + whiteList['animation-timing-function'] = false; // default: ease + whiteList['azimuth'] = false; // default: center + whiteList['backface-visibility'] = false; // default: visible + whiteList['background'] = true; // default: depending on individual properties + whiteList['background-attachment'] = true; // default: scroll + whiteList['background-clip'] = true; // default: border-box + whiteList['background-color'] = true; // default: transparent + whiteList['background-image'] = true; // default: none + whiteList['background-origin'] = true; // default: padding-box + whiteList['background-position'] = true; // default: 0% 0% + whiteList['background-repeat'] = true; // default: repeat + whiteList['background-size'] = true; // default: auto + whiteList['baseline-shift'] = false; // default: baseline + whiteList['binding'] = false; // default: none + whiteList['bleed'] = false; // default: 6pt + whiteList['bookmark-label'] = false; // default: content() + whiteList['bookmark-level'] = false; // default: none + whiteList['bookmark-state'] = false; // default: open + whiteList['border'] = true; // default: depending on individual properties + whiteList['border-bottom'] = true; // default: depending on individual properties + whiteList['border-bottom-color'] = true; // default: current color + whiteList['border-bottom-left-radius'] = true; // default: 0 + whiteList['border-bottom-right-radius'] = true; // default: 0 + whiteList['border-bottom-style'] = true; // default: none + whiteList['border-bottom-width'] = true; // default: medium + whiteList['border-collapse'] = true; // default: separate + whiteList['border-color'] = true; // default: depending on individual properties + whiteList['border-image'] = true; // default: none + whiteList['border-image-outset'] = true; // default: 0 + whiteList['border-image-repeat'] = true; // default: stretch + whiteList['border-image-slice'] = true; // default: 100% + whiteList['border-image-source'] = true; // default: none + whiteList['border-image-width'] = true; // default: 1 + whiteList['border-left'] = true; // default: depending on individual properties + whiteList['border-left-color'] = true; // default: current color + whiteList['border-left-style'] = true; // default: none + whiteList['border-left-width'] = true; // default: medium + whiteList['border-radius'] = true; // default: 0 + whiteList['border-right'] = true; // default: depending on individual properties + whiteList['border-right-color'] = true; // default: current color + whiteList['border-right-style'] = true; // default: none + whiteList['border-right-width'] = true; // default: medium + whiteList['border-spacing'] = true; // default: 0 + whiteList['border-style'] = true; // default: depending on individual properties + whiteList['border-top'] = true; // default: depending on individual properties + whiteList['border-top-color'] = true; // default: current color + whiteList['border-top-left-radius'] = true; // default: 0 + whiteList['border-top-right-radius'] = true; // default: 0 + whiteList['border-top-style'] = true; // default: none + whiteList['border-top-width'] = true; // default: medium + whiteList['border-width'] = true; // default: depending on individual properties + whiteList['bottom'] = false; // default: auto + whiteList['box-decoration-break'] = true; // default: slice + whiteList['box-shadow'] = true; // default: none + whiteList['box-sizing'] = true; // default: content-box + whiteList['box-snap'] = true; // default: none + whiteList['box-suppress'] = true; // default: show + whiteList['break-after'] = true; // default: auto + whiteList['break-before'] = true; // default: auto + whiteList['break-inside'] = true; // default: auto + whiteList['caption-side'] = false; // default: top + whiteList['chains'] = false; // default: none + whiteList['clear'] = true; // default: none + whiteList['clip'] = false; // default: auto + whiteList['clip-path'] = false; // default: none + whiteList['clip-rule'] = false; // default: nonzero + whiteList['color'] = true; // default: implementation dependent + whiteList['color-interpolation-filters'] = true; // default: auto + whiteList['column-count'] = false; // default: auto + whiteList['column-fill'] = false; // default: balance + whiteList['column-gap'] = false; // default: normal + whiteList['column-rule'] = false; // default: depending on individual properties + whiteList['column-rule-color'] = false; // default: current color + whiteList['column-rule-style'] = false; // default: medium + whiteList['column-rule-width'] = false; // default: medium + whiteList['column-span'] = false; // default: none + whiteList['column-width'] = false; // default: auto + whiteList['columns'] = false; // default: depending on individual properties + whiteList['contain'] = false; // default: none + whiteList['content'] = false; // default: normal + whiteList['counter-increment'] = false; // default: none + whiteList['counter-reset'] = false; // default: none + whiteList['counter-set'] = false; // default: none + whiteList['crop'] = false; // default: auto + whiteList['cue'] = false; // default: depending on individual properties + whiteList['cue-after'] = false; // default: none + whiteList['cue-before'] = false; // default: none + whiteList['cursor'] = false; // default: auto + whiteList['direction'] = false; // default: ltr + whiteList['display'] = true; // default: depending on individual properties + whiteList['display-inside'] = true; // default: auto + whiteList['display-list'] = true; // default: none + whiteList['display-outside'] = true; // default: inline-level + whiteList['dominant-baseline'] = false; // default: auto + whiteList['elevation'] = false; // default: level + whiteList['empty-cells'] = false; // default: show + whiteList['filter'] = false; // default: none + whiteList['flex'] = false; // default: depending on individual properties + whiteList['flex-basis'] = false; // default: auto + whiteList['flex-direction'] = false; // default: row + whiteList['flex-flow'] = false; // default: depending on individual properties + whiteList['flex-grow'] = false; // default: 0 + whiteList['flex-shrink'] = false; // default: 1 + whiteList['flex-wrap'] = false; // default: nowrap + whiteList['float'] = false; // default: none + whiteList['float-offset'] = false; // default: 0 0 + whiteList['flood-color'] = false; // default: black + whiteList['flood-opacity'] = false; // default: 1 + whiteList['flow-from'] = false; // default: none + whiteList['flow-into'] = false; // default: none + whiteList['font'] = true; // default: depending on individual properties + whiteList['font-family'] = true; // default: implementation dependent + whiteList['font-feature-settings'] = true; // default: normal + whiteList['font-kerning'] = true; // default: auto + whiteList['font-language-override'] = true; // default: normal + whiteList['font-size'] = true; // default: medium + whiteList['font-size-adjust'] = true; // default: none + whiteList['font-stretch'] = true; // default: normal + whiteList['font-style'] = true; // default: normal + whiteList['font-synthesis'] = true; // default: weight style + whiteList['font-variant'] = true; // default: normal + whiteList['font-variant-alternates'] = true; // default: normal + whiteList['font-variant-caps'] = true; // default: normal + whiteList['font-variant-east-asian'] = true; // default: normal + whiteList['font-variant-ligatures'] = true; // default: normal + whiteList['font-variant-numeric'] = true; // default: normal + whiteList['font-variant-position'] = true; // default: normal + whiteList['font-weight'] = true; // default: normal + whiteList['grid'] = false; // default: depending on individual properties + whiteList['grid-area'] = false; // default: depending on individual properties + whiteList['grid-auto-columns'] = false; // default: auto + whiteList['grid-auto-flow'] = false; // default: none + whiteList['grid-auto-rows'] = false; // default: auto + whiteList['grid-column'] = false; // default: depending on individual properties + whiteList['grid-column-end'] = false; // default: auto + whiteList['grid-column-start'] = false; // default: auto + whiteList['grid-row'] = false; // default: depending on individual properties + whiteList['grid-row-end'] = false; // default: auto + whiteList['grid-row-start'] = false; // default: auto + whiteList['grid-template'] = false; // default: depending on individual properties + whiteList['grid-template-areas'] = false; // default: none + whiteList['grid-template-columns'] = false; // default: none + whiteList['grid-template-rows'] = false; // default: none + whiteList['hanging-punctuation'] = false; // default: none + whiteList['height'] = true; // default: auto + whiteList['hyphens'] = false; // default: manual + whiteList['icon'] = false; // default: auto + whiteList['image-orientation'] = false; // default: auto + whiteList['image-resolution'] = false; // default: normal + whiteList['ime-mode'] = false; // default: auto + whiteList['initial-letters'] = false; // default: normal + whiteList['inline-box-align'] = false; // default: last + whiteList['justify-content'] = false; // default: auto + whiteList['justify-items'] = false; // default: auto + whiteList['justify-self'] = false; // default: auto + whiteList['left'] = false; // default: auto + whiteList['letter-spacing'] = true; // default: normal + whiteList['lighting-color'] = true; // default: white + whiteList['line-box-contain'] = false; // default: block inline replaced + whiteList['line-break'] = false; // default: auto + whiteList['line-grid'] = false; // default: match-parent + whiteList['line-height'] = false; // default: normal + whiteList['line-snap'] = false; // default: none + whiteList['line-stacking'] = false; // default: depending on individual properties + whiteList['line-stacking-ruby'] = false; // default: exclude-ruby + whiteList['line-stacking-shift'] = false; // default: consider-shifts + whiteList['line-stacking-strategy'] = false; // default: inline-line-height + whiteList['list-style'] = true; // default: depending on individual properties + whiteList['list-style-image'] = true; // default: none + whiteList['list-style-position'] = true; // default: outside + whiteList['list-style-type'] = true; // default: disc + whiteList['margin'] = true; // default: depending on individual properties + whiteList['margin-bottom'] = true; // default: 0 + whiteList['margin-left'] = true; // default: 0 + whiteList['margin-right'] = true; // default: 0 + whiteList['margin-top'] = true; // default: 0 + whiteList['marker-offset'] = false; // default: auto + whiteList['marker-side'] = false; // default: list-item + whiteList['marks'] = false; // default: none + whiteList['mask'] = false; // default: border-box + whiteList['mask-box'] = false; // default: see individual properties + whiteList['mask-box-outset'] = false; // default: 0 + whiteList['mask-box-repeat'] = false; // default: stretch + whiteList['mask-box-slice'] = false; // default: 0 fill + whiteList['mask-box-source'] = false; // default: none + whiteList['mask-box-width'] = false; // default: auto + whiteList['mask-clip'] = false; // default: border-box + whiteList['mask-image'] = false; // default: none + whiteList['mask-origin'] = false; // default: border-box + whiteList['mask-position'] = false; // default: center + whiteList['mask-repeat'] = false; // default: no-repeat + whiteList['mask-size'] = false; // default: border-box + whiteList['mask-source-type'] = false; // default: auto + whiteList['mask-type'] = false; // default: luminance + whiteList['max-height'] = true; // default: none + whiteList['max-lines'] = false; // default: none + whiteList['max-width'] = true; // default: none + whiteList['min-height'] = true; // default: 0 + whiteList['min-width'] = true; // default: 0 + whiteList['move-to'] = false; // default: normal + whiteList['nav-down'] = false; // default: auto + whiteList['nav-index'] = false; // default: auto + whiteList['nav-left'] = false; // default: auto + whiteList['nav-right'] = false; // default: auto + whiteList['nav-up'] = false; // default: auto + whiteList['object-fit'] = false; // default: fill + whiteList['object-position'] = false; // default: 50% 50% + whiteList['opacity'] = false; // default: 1 + whiteList['order'] = false; // default: 0 + whiteList['orphans'] = false; // default: 2 + whiteList['outline'] = false; // default: depending on individual properties + whiteList['outline-color'] = false; // default: invert + whiteList['outline-offset'] = false; // default: 0 + whiteList['outline-style'] = false; // default: none + whiteList['outline-width'] = false; // default: medium + whiteList['overflow'] = false; // default: depending on individual properties + whiteList['overflow-wrap'] = false; // default: normal + whiteList['overflow-x'] = false; // default: visible + whiteList['overflow-y'] = false; // default: visible + whiteList['padding'] = true; // default: depending on individual properties + whiteList['padding-bottom'] = true; // default: 0 + whiteList['padding-left'] = true; // default: 0 + whiteList['padding-right'] = true; // default: 0 + whiteList['padding-top'] = true; // default: 0 + whiteList['page'] = false; // default: auto + whiteList['page-break-after'] = false; // default: auto + whiteList['page-break-before'] = false; // default: auto + whiteList['page-break-inside'] = false; // default: auto + whiteList['page-policy'] = false; // default: start + whiteList['pause'] = false; // default: implementation dependent + whiteList['pause-after'] = false; // default: implementation dependent + whiteList['pause-before'] = false; // default: implementation dependent + whiteList['perspective'] = false; // default: none + whiteList['perspective-origin'] = false; // default: 50% 50% + whiteList['pitch'] = false; // default: medium + whiteList['pitch-range'] = false; // default: 50 + whiteList['play-during'] = false; // default: auto + whiteList['position'] = false; // default: static + whiteList['presentation-level'] = false; // default: 0 + whiteList['quotes'] = false; // default: text + whiteList['region-fragment'] = false; // default: auto + whiteList['resize'] = false; // default: none + whiteList['rest'] = false; // default: depending on individual properties + whiteList['rest-after'] = false; // default: none + whiteList['rest-before'] = false; // default: none + whiteList['richness'] = false; // default: 50 + whiteList['right'] = false; // default: auto + whiteList['rotation'] = false; // default: 0 + whiteList['rotation-point'] = false; // default: 50% 50% + whiteList['ruby-align'] = false; // default: auto + whiteList['ruby-merge'] = false; // default: separate + whiteList['ruby-position'] = false; // default: before + whiteList['shape-image-threshold'] = false; // default: 0.0 + whiteList['shape-outside'] = false; // default: none + whiteList['shape-margin'] = false; // default: 0 + whiteList['size'] = false; // default: auto + whiteList['speak'] = false; // default: auto + whiteList['speak-as'] = false; // default: normal + whiteList['speak-header'] = false; // default: once + whiteList['speak-numeral'] = false; // default: continuous + whiteList['speak-punctuation'] = false; // default: none + whiteList['speech-rate'] = false; // default: medium + whiteList['stress'] = false; // default: 50 + whiteList['string-set'] = false; // default: none + whiteList['tab-size'] = false; // default: 8 + whiteList['table-layout'] = false; // default: auto + whiteList['text-align'] = true; // default: start + whiteList['text-align-last'] = true; // default: auto + whiteList['text-combine-upright'] = true; // default: none + whiteList['text-decoration'] = true; // default: none + whiteList['text-decoration-color'] = true; // default: currentColor + whiteList['text-decoration-line'] = true; // default: none + whiteList['text-decoration-skip'] = true; // default: objects + whiteList['text-decoration-style'] = true; // default: solid + whiteList['text-emphasis'] = true; // default: depending on individual properties + whiteList['text-emphasis-color'] = true; // default: currentColor + whiteList['text-emphasis-position'] = true; // default: over right + whiteList['text-emphasis-style'] = true; // default: none + whiteList['text-height'] = true; // default: auto + whiteList['text-indent'] = true; // default: 0 + whiteList['text-justify'] = true; // default: auto + whiteList['text-orientation'] = true; // default: mixed + whiteList['text-overflow'] = true; // default: clip + whiteList['text-shadow'] = true; // default: none + whiteList['text-space-collapse'] = true; // default: collapse + whiteList['text-transform'] = true; // default: none + whiteList['text-underline-position'] = true; // default: auto + whiteList['text-wrap'] = true; // default: normal + whiteList['top'] = false; // default: auto + whiteList['transform'] = false; // default: none + whiteList['transform-origin'] = false; // default: 50% 50% 0 + whiteList['transform-style'] = false; // default: flat + whiteList['transition'] = false; // default: depending on individual properties + whiteList['transition-delay'] = false; // default: 0s + whiteList['transition-duration'] = false; // default: 0s + whiteList['transition-property'] = false; // default: all + whiteList['transition-timing-function'] = false; // default: ease + whiteList['unicode-bidi'] = false; // default: normal + whiteList['vertical-align'] = false; // default: baseline + whiteList['visibility'] = false; // default: visible + whiteList['voice-balance'] = false; // default: center + whiteList['voice-duration'] = false; // default: auto + whiteList['voice-family'] = false; // default: implementation dependent + whiteList['voice-pitch'] = false; // default: medium + whiteList['voice-range'] = false; // default: medium + whiteList['voice-rate'] = false; // default: normal + whiteList['voice-stress'] = false; // default: normal + whiteList['voice-volume'] = false; // default: medium + whiteList['volume'] = false; // default: medium + whiteList['white-space'] = false; // default: normal + whiteList['widows'] = false; // default: 2 + whiteList['width'] = true; // default: auto + whiteList['will-change'] = false; // default: auto + whiteList['word-break'] = true; // default: normal + whiteList['word-spacing'] = true; // default: normal + whiteList['word-wrap'] = true; // default: normal + whiteList['wrap-flow'] = false; // default: auto + whiteList['wrap-through'] = false; // default: wrap + whiteList['writing-mode'] = false; // default: horizontal-tb + whiteList['z-index'] = false; // default: auto + + return whiteList; +} + + +/** + * 匹配到白名单上的一个属性时 + * + * @param {String} name + * @param {String} value + * @param {Object} options + * @return {String} + */ +function onAttr (name, value, options) { + // do nothing +} + +/** + * 匹配到不在白名单上的一个属性时 + * + * @param {String} name + * @param {String} value + * @param {Object} options + * @return {String} + */ +function onIgnoreAttr (name, value, options) { + // do nothing +} + +var REGEXP_URL_JAVASCRIPT = /javascript\s*\:/img; + +/** + * 过滤属性值 + * + * @param {String} name + * @param {String} value + * @return {String} + */ +function safeAttrValue(name, value) { + if (REGEXP_URL_JAVASCRIPT.test(value)) return ''; + return value; +} + + +exports.whiteList = getDefaultWhiteList(); +exports.getDefaultWhiteList = getDefaultWhiteList; +exports.onAttr = onAttr; +exports.onIgnoreAttr = onIgnoreAttr; +exports.safeAttrValue = safeAttrValue; + +},{}],8:[function(require,module,exports){ +/** + * cssfilter + * + * @author 老雷 + */ + +var DEFAULT = require('./default'); +var FilterCSS = require('./css'); + + +/** + * XSS过滤 + * + * @param {String} css 要过滤的CSS代码 + * @param {Object} options 选项：whiteList, onAttr, onIgnoreAttr + * @return {String} + */ +function filterCSS (html, options) { + var xss = new FilterCSS(options); + return xss.process(html); +} + + +// 输出 +exports = module.exports = filterCSS; +exports.FilterCSS = FilterCSS; +for (var i in DEFAULT) exports[i] = DEFAULT[i]; + +// 在浏览器端使用 +if (typeof window !== 'undefined') { + window.filterCSS = module.exports; +} + +},{"./css":6,"./default":7}],9:[function(require,module,exports){ +/** + * cssfilter + * + * @author 老雷 + */ + +var _ = require('./util'); + + +/** + * 解析style + * + * @param {String} css + * @param {Function} onAttr 处理属性的函数 + * 参数格式： function (sourcePosition, position, name, value, source) + * @return {String} + */ +function parseStyle (css, onAttr) { + css = _.trimRight(css); + if (css[css.length - 1] !== ';') css += ';'; + var cssLength = css.length; + var isParenthesisOpen = false; + var lastPos = 0; + var i = 0; + var retCSS = ''; + + function addNewAttr () { + // 如果没有正常的闭合圆括号，则直接忽略当前属性 + if (!isParenthesisOpen) { + var source = _.trim(css.slice(lastPos, i)); + var j = source.indexOf(':'); + if (j !== -1) { + var name = _.trim(source.slice(0, j)); + var value = _.trim(source.slice(j + 1)); + // 必须有属性名称 + if (name) { + var ret = onAttr(lastPos, retCSS.length, name, value, source); + if (ret) retCSS += ret + '; '; + } + } + } + lastPos = i + 1; + } + + for (; i < cssLength; i++) { + var c = css[i]; + if (c === '/' && css[i + 1] === '*') { + // 备注开始 + var j = css.indexOf('*/', i + 2); + // 如果没有正常的备注结束，则后面的部分全部跳过 + if (j === -1) break; + // 直接将当前位置调到备注结尾，并且初始化状态 + i = j + 1; + lastPos = i + 1; + isParenthesisOpen = false; + } else if (c === '(') { + isParenthesisOpen = true; + } else if (c === ')') { + isParenthesisOpen = false; + } else if (c === ';') { + if (isParenthesisOpen) { + // 在圆括号里面，忽略 + } else { + addNewAttr(); + } + } else if (c === '\n') { + addNewAttr(); + } + } + + return _.trim(retCSS); +} + +module.exports = parseStyle; + +},{"./util":10}],10:[function(require,module,exports){ +module.exports = { + indexOf: function (arr, item) { + var i, j; + if (Array.prototype.indexOf) { + return arr.indexOf(item); + } + for (i = 0, j = arr.length; i < j; i++) { + if (arr[i] === item) { + return i; + } + } + return -1; + }, + forEach: function (arr, fn, scope) { + var i, j; + if (Array.prototype.forEach) { + return arr.forEach(fn, scope); + } + for (i = 0, j = arr.length; i < j; i++) { + fn.call(scope, arr[i], i, arr); + } + }, + trim: function (str) { + if (String.prototype.trim) { + return str.trim(); + } + return str.replace(/(^\s*)|(\s*$)/g, ''); + }, + trimRight: function (str) { + if (String.prototype.trimRight) { + return str.trimRight(); + } + return str.replace(/(\s*$)/g, ''); + } +}; + +},{}]},{},[2]); -- cgit v1.2.3