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- (function(window, angular, undefined) {'use strict';
- var $sanitizeMinErr = angular.$$minErr('$sanitize');
- function $SanitizeProvider() {
- var svgEnabled = false;
- this.$get = ['$$sanitizeUri', function($$sanitizeUri) {
- if (svgEnabled) {
- angular.extend(validElements, svgElements);
- }
- return function(html) {
- var buf = [];
- htmlParser(html, htmlSanitizeWriter(buf, function(uri, isImage) {
- return !/^unsafe:/.test($$sanitizeUri(uri, isImage));
- }));
- return buf.join('');
- };
- }];
-
- this.enableSvg = function(enableSvg) {
- if (angular.isDefined(enableSvg)) {
- svgEnabled = enableSvg;
- return this;
- } else {
- return svgEnabled;
- }
- };
- }
- function sanitizeText(chars) {
- var buf = [];
- var writer = htmlSanitizeWriter(buf, angular.noop);
- writer.chars(chars);
- return buf.join('');
- }
- var SURROGATE_PAIR_REGEXP = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g,
-
- NON_ALPHANUMERIC_REGEXP = /([^\#-~ |!])/g;
- var voidElements = toMap("area,br,col,hr,img,wbr");
- var optionalEndTagBlockElements = toMap("colgroup,dd,dt,li,p,tbody,td,tfoot,th,thead,tr"),
- optionalEndTagInlineElements = toMap("rp,rt"),
- optionalEndTagElements = angular.extend({},
- optionalEndTagInlineElements,
- optionalEndTagBlockElements);
- var blockElements = angular.extend({}, optionalEndTagBlockElements, toMap("address,article," +
- "aside,blockquote,caption,center,del,dir,div,dl,figure,figcaption,footer,h1,h2,h3,h4,h5," +
- "h6,header,hgroup,hr,ins,map,menu,nav,ol,pre,section,table,ul"));
- var inlineElements = angular.extend({}, optionalEndTagInlineElements, toMap("a,abbr,acronym,b," +
- "bdi,bdo,big,br,cite,code,del,dfn,em,font,i,img,ins,kbd,label,map,mark,q,ruby,rp,rt,s," +
- "samp,small,span,strike,strong,sub,sup,time,tt,u,var"));
- var svgElements = toMap("circle,defs,desc,ellipse,font-face,font-face-name,font-face-src,g,glyph," +
- "hkern,image,linearGradient,line,marker,metadata,missing-glyph,mpath,path,polygon,polyline," +
- "radialGradient,rect,stop,svg,switch,text,title,tspan");
- var blockedElements = toMap("script,style");
- var validElements = angular.extend({},
- voidElements,
- blockElements,
- inlineElements,
- optionalEndTagElements);
- var uriAttrs = toMap("background,cite,href,longdesc,src,xlink:href");
- var htmlAttrs = toMap('abbr,align,alt,axis,bgcolor,border,cellpadding,cellspacing,class,clear,' +
- 'color,cols,colspan,compact,coords,dir,face,headers,height,hreflang,hspace,' +
- 'ismap,lang,language,nohref,nowrap,rel,rev,rows,rowspan,rules,' +
- 'scope,scrolling,shape,size,span,start,summary,tabindex,target,title,type,' +
- 'valign,value,vspace,width');
- var svgAttrs = toMap('accent-height,accumulate,additive,alphabetic,arabic-form,ascent,' +
- 'baseProfile,bbox,begin,by,calcMode,cap-height,class,color,color-rendering,content,' +
- 'cx,cy,d,dx,dy,descent,display,dur,end,fill,fill-rule,font-family,font-size,font-stretch,' +
- 'font-style,font-variant,font-weight,from,fx,fy,g1,g2,glyph-name,gradientUnits,hanging,' +
- 'height,horiz-adv-x,horiz-origin-x,ideographic,k,keyPoints,keySplines,keyTimes,lang,' +
- 'marker-end,marker-mid,marker-start,markerHeight,markerUnits,markerWidth,mathematical,' +
- 'max,min,offset,opacity,orient,origin,overline-position,overline-thickness,panose-1,' +
- 'path,pathLength,points,preserveAspectRatio,r,refX,refY,repeatCount,repeatDur,' +
- 'requiredExtensions,requiredFeatures,restart,rotate,rx,ry,slope,stemh,stemv,stop-color,' +
- 'stop-opacity,strikethrough-position,strikethrough-thickness,stroke,stroke-dasharray,' +
- 'stroke-dashoffset,stroke-linecap,stroke-linejoin,stroke-miterlimit,stroke-opacity,' +
- 'stroke-width,systemLanguage,target,text-anchor,to,transform,type,u1,u2,underline-position,' +
- 'underline-thickness,unicode,unicode-range,units-per-em,values,version,viewBox,visibility,' +
- 'width,widths,x,x-height,x1,x2,xlink:actuate,xlink:arcrole,xlink:role,xlink:show,xlink:title,' +
- 'xlink:type,xml:base,xml:lang,xml:space,xmlns,xmlns:xlink,y,y1,y2,zoomAndPan', true);
- var validAttrs = angular.extend({},
- uriAttrs,
- svgAttrs,
- htmlAttrs);
- function toMap(str, lowercaseKeys) {
- var obj = {}, items = str.split(','), i;
- for (i = 0; i < items.length; i++) {
- obj[lowercaseKeys ? angular.lowercase(items[i]) : items[i]] = true;
- }
- return obj;
- }
- var inertBodyElement;
- (function(window) {
- var doc;
- if (window.document && window.document.implementation) {
- doc = window.document.implementation.createHTMLDocument("inert");
- } else {
- throw $sanitizeMinErr('noinert', "Can't create an inert html document");
- }
- var docElement = doc.documentElement || doc.getDocumentElement();
- var bodyElements = docElement.getElementsByTagName('body');
-
- if (bodyElements.length === 1) {
- inertBodyElement = bodyElements[0];
- } else {
- var html = doc.createElement('html');
- inertBodyElement = doc.createElement('body');
- html.appendChild(inertBodyElement);
- doc.appendChild(html);
- }
- })(window);
- function htmlParser(html, handler) {
- if (html === null || html === undefined) {
- html = '';
- } else if (typeof html !== 'string') {
- html = '' + html;
- }
- inertBodyElement.innerHTML = html;
-
- var mXSSAttempts = 5;
- do {
- if (mXSSAttempts === 0) {
- throw $sanitizeMinErr('uinput', "Failed to sanitize html because the input is unstable");
- }
- mXSSAttempts--;
-
- if (document.documentMode <= 11) {
- stripCustomNsAttrs(inertBodyElement);
- }
- html = inertBodyElement.innerHTML;
- inertBodyElement.innerHTML = html;
- } while (html !== inertBodyElement.innerHTML);
- var node = inertBodyElement.firstChild;
- while (node) {
- switch (node.nodeType) {
- case 1:
- handler.start(node.nodeName.toLowerCase(), attrToMap(node.attributes));
- break;
- case 3:
- handler.chars(node.textContent);
- break;
- }
- var nextNode;
- if (!(nextNode = node.firstChild)) {
- if (node.nodeType == 1) {
- handler.end(node.nodeName.toLowerCase());
- }
- nextNode = node.nextSibling;
- if (!nextNode) {
- while (nextNode == null) {
- node = node.parentNode;
- if (node === inertBodyElement) break;
- nextNode = node.nextSibling;
- if (node.nodeType == 1) {
- handler.end(node.nodeName.toLowerCase());
- }
- }
- }
- }
- node = nextNode;
- }
- while (node = inertBodyElement.firstChild) {
- inertBodyElement.removeChild(node);
- }
- }
- function attrToMap(attrs) {
- var map = {};
- for (var i = 0, ii = attrs.length; i < ii; i++) {
- var attr = attrs[i];
- map[attr.name] = attr.value;
- }
- return map;
- }
- function encodeEntities(value) {
- return value.
- replace(/&/g, '&').
- replace(SURROGATE_PAIR_REGEXP, function(value) {
- var hi = value.charCodeAt(0);
- var low = value.charCodeAt(1);
- return '&#' + (((hi - 0xD800) * 0x400) + (low - 0xDC00) + 0x10000) + ';';
- }).
- replace(NON_ALPHANUMERIC_REGEXP, function(value) {
- return '&#' + value.charCodeAt(0) + ';';
- }).
- replace(/</g, '<').
- replace(/>/g, '>');
- }
- function htmlSanitizeWriter(buf, uriValidator) {
- var ignoreCurrentElement = false;
- var out = angular.bind(buf, buf.push);
- return {
- start: function(tag, attrs) {
- tag = angular.lowercase(tag);
- if (!ignoreCurrentElement && blockedElements[tag]) {
- ignoreCurrentElement = tag;
- }
- if (!ignoreCurrentElement && validElements[tag] === true) {
- out('<');
- out(tag);
- angular.forEach(attrs, function(value, key) {
- var lkey=angular.lowercase(key);
- var isImage = (tag === 'img' && lkey === 'src') || (lkey === 'background');
- if (validAttrs[lkey] === true &&
- (uriAttrs[lkey] !== true || uriValidator(value, isImage))) {
- out(' ');
- out(key);
- out('="');
- out(encodeEntities(value));
- out('"');
- }
- });
- out('>');
- }
- },
- end: function(tag) {
- tag = angular.lowercase(tag);
- if (!ignoreCurrentElement && validElements[tag] === true && voidElements[tag] !== true) {
- out('</');
- out(tag);
- out('>');
- }
- if (tag == ignoreCurrentElement) {
- ignoreCurrentElement = false;
- }
- },
- chars: function(chars) {
- if (!ignoreCurrentElement) {
- out(encodeEntities(chars));
- }
- }
- };
- }
- function stripCustomNsAttrs(node) {
- if (node.nodeType === Node.ELEMENT_NODE) {
- var attrs = node.attributes;
- for (var i = 0, l = attrs.length; i < l; i++) {
- var attrNode = attrs[i];
- var attrName = attrNode.name.toLowerCase();
- if (attrName === 'xmlns:ns1' || attrName.indexOf('ns1:') === 0) {
- node.removeAttributeNode(attrNode);
- i--;
- l--;
- }
- }
- }
- var nextNode = node.firstChild;
- if (nextNode) {
- stripCustomNsAttrs(nextNode);
- }
- nextNode = node.nextSibling;
- if (nextNode) {
- stripCustomNsAttrs(nextNode);
- }
- }
- angular.module('ngSanitize', []).provider('$sanitize', $SanitizeProvider);
- angular.module('ngSanitize').filter('linky', ['$sanitize', function($sanitize) {
- var LINKY_URL_REGEXP =
- /((ftp|https?):\/\/|(www\.)|(mailto:)?[A-Za-z0-9._%+-]+@)\S*[^\s.;,(){}<>"\u201d\u2019]/i,
- MAILTO_REGEXP = /^mailto:/i;
- var linkyMinErr = angular.$$minErr('linky');
- var isString = angular.isString;
- return function(text, target, attributes) {
- if (text == null || text === '') return text;
- if (!isString(text)) throw linkyMinErr('notstring', 'Expected string but received: {0}', text);
- var match;
- var raw = text;
- var html = [];
- var url;
- var i;
- while ((match = raw.match(LINKY_URL_REGEXP))) {
-
- url = match[0];
-
- if (!match[2] && !match[4]) {
- url = (match[3] ? 'http://' : 'mailto:') + url;
- }
- i = match.index;
- addText(raw.substr(0, i));
- addLink(url, match[0].replace(MAILTO_REGEXP, ''));
- raw = raw.substring(i + match[0].length);
- }
- addText(raw);
- return $sanitize(html.join(''));
- function addText(text) {
- if (!text) {
- return;
- }
- html.push(sanitizeText(text));
- }
- function addLink(url, text) {
- var key;
- html.push('<a ');
- if (angular.isFunction(attributes)) {
- attributes = attributes(url);
- }
- if (angular.isObject(attributes)) {
- for (key in attributes) {
- html.push(key + '="' + attributes[key] + '" ');
- }
- } else {
- attributes = {};
- }
- if (angular.isDefined(target) && !('target' in attributes)) {
- html.push('target="',
- target,
- '" ');
- }
- html.push('href="',
- url.replace(/"/g, '"'),
- '">');
- addText(text);
- html.push('</a>');
- }
- };
- }]);
- })(window, window.angular);
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