dompurify - npm Package Compare versions

Comparing version 0.8.6 to 0.8.7

dist/purify.min.js

@@ -1,2 +0,2 @@
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a,i,o,l,s,f,c,u;fe("beforeSanitizeAttributes",e,null);f=e.attributes;if(!f){return}c={attrName:"",attrValue:"",keepAttr:true,allowedAttributes:E};u=f.length;while(u--){a=f[u];i=a.name;o=a.value.trim();l=i.toLowerCase();c.attrName=l;c.attrValue=o;c.keepAttr=true;fe("uponSanitizeAttribute",e,c);o=c.attrValue;if(l==="name"&&e.nodeName==="IMG"&&f.id){s=f.id;f=Array.prototype.slice.apply(f);J("id",e);J(i,e);if(f.indexOf(s)>u){e.setAttribute("id",s.value)}}else if(e.nodeName==="INPUT"&&l==="type"&&o==="file"&&(E[l]||!O[l])){continue}else{if(i==="id"){e.setAttribute(i,"")}J(i,e)}if(!c.keepAttr){continue}if(W&&(l==="id"||l==="name")&&(o in t||o in n||o in Y)){continue}if(C){o=o.replace(R," ");o=o.replace(z," ")}if(M&&re.test(l)){}else if(D&&ne.test(l)){}else if(!E[l]||O[l]){continue}else if(q[l]){}else if(ae.test(o.replace(oe,""))){}else if((l==="src"||l==="xlink:href")&&o.indexOf("data:")===0&&U[e.nodeName.toLowerCase()]){}else if(L&&!ie.test(o.replace(oe,""))){}else 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 //# sourceMappingURL=./dist/purify.min.js.map

package.json

@@ -44,3 +44,3 @@ {
   "description": "DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It's written in JavaScript and works in all modern browsers (Safari, Opera (15+), Internet Explorer (10+), Firefox and Chrome - as well as almost anything else using Blink or WebKit). DOMPurify is written by security people who have vast background in web attacks and XSS. Fear not.",
-  "version": "0.8.6",
+  "version": "0.8.7",
   "main": "src/purify.js",
@@ -47,0 +47,0 @@ "directories": {

README.md

@@ -11,3 +11,3 @@ # DOMPurify [![Bower version](https://badge.fury.io/bo/dompurify.svg)](http://badge.fury.io/bo/dompurify) · [![npm version](https://badge.fury.io/js/dompurify.svg)](http://badge.fury.io/js/dompurify) · [![Build Status](https://travis-ci.org/cure53/DOMPurify.svg)](https://travis-ci.org/cure53/DOMPurify) · [![Downloads](https://img.shields.io/npm/dm/dompurify.svg)](https://www.npmjs.com/package/dompurify)
 
-Our automated tests cover [12 different browsers](https://github.com/cure53/DOMPurify/blob/master/test/karma.conf.js#L153) right now. We also cover Node.js v4.0.0, v5.0.0 and v6.0.0, running DOMPurify on [jsdom](https://github.com/tmpvar/jsdom).
+Our automated tests cover [16 different browsers](https://github.com/cure53/DOMPurify/blob/master/test/karma.conf.js#L185) right now. We also cover Node.js v4.0.0, v5.0.0 and v6.0.0, running DOMPurify on [jsdom](https://github.com/tmpvar/jsdom).
 
@@ -14,0 +14,0 @@ DOMPurify is written by security people who have vast background in web attacks and XSS. Fear not. For more details please also read about our [Security Goals & Threat Model](https://github.com/cure53/DOMPurify/wiki/Security-Goals-&-Threat-Model)

src/purify.js

@@ -24,3 +24,3 @@ ;(function(factory) {
      */
-    DOMPurify.version = '0.8.6';
+    DOMPurify.version = '0.8.7';
 
@@ -49,2 +49,4 @@ /**
     var Comment = window.Comment;
+    var DOMParser = window.DOMParser;
+    var useDOMParser = false; // See comment below
 
@@ -241,3 +243,3 @@ // As per issue #47, the web-components registry is inherited by a
 
-    /* Decide if all elements (e.g. style, script) must be children of 
+    /* Decide if all elements (e.g. style, script) must be children of
      * document.body. By default, browsers might move them to document.head */
@@ -268,3 +270,3 @@ var FORCE_BODY = false;
     var FORBID_CONTENTS = _addToSet({}, [
-        'audio', 'head', 'math', 'script', 'style', 'svg', 'video'
+        'audio', 'head', 'math', 'script', 'style', 'template', 'svg', 'video'
     ]);
@@ -396,3 +398,4 @@
         var doc, body;
-        
+
+        /* Fill body with bogus element */
         if (FORCE_BODY) {
@@ -402,2 +405,11 @@ dirty = '<remove></remove>' + dirty;
 
+        /* Use DOMParser to workaround Firefox bug (see comment below) */
+        if (useDOMParser) {
+            try {
+                doc = new DOMParser().parseFromString(dirty, 'text/html');
+            } catch (e) {}
+        }
+
+        /* Otherwise use createHTMLDocument, because DOMParser is unsafe in
+           Safari (see comment below) */
         if (!doc || !doc.documentElement) {
@@ -411,6 +423,2 @@ doc = implementation.createHTMLDocument('');
         /* Work on whole document or just its body */
-        if (typeof doc.getElementsByTagName === 'function') {
-            return doc.getElementsByTagName(
-                WHOLE_DOCUMENT ? 'html' : 'body')[0];
-        }
         return getElementsByTagName.call(doc,
@@ -420,2 +428,24 @@ WHOLE_DOCUMENT ? 'html' : 'body')[0];
 
+    // Safari 10.1+ (unfixed as of time of writing) has a catastrophic bug in
+    // its implementation of DOMParser such that the following executes the
+    // JavaScript:
+    //
+    // new DOMParser()
+    //   .parseFromString('<svg onload=alert(document.domain)>', 'text/html');
+    //
+    // However, Firefox uses a different parser for innerHTML rather than
+    // DOMParser (see https://bugzilla.mozilla.org/show_bug.cgi?id=1205631)
+    // which means that you *must* use DOMParser, otherwise the output may
+    // not be safe if used in a document.write context later.
+    //
+    // So we feature detect the Firefox bug and use the DOMParser if necessary.
+    if (DOMPurify.isSupported) {
+        (function () {
+            var doc = _initDocument('<svg><p><style><img src="</style><img src=x onerror=alert(1)//">');
+            if (doc.getElementsByTagName('img')[0].hasAttribute('onerror')) {
+                useDOMParser = true;
+            }
+        }());
+    }
+
     /**
@@ -608,12 +638,11 @@ * _createIterator
             } else if (
-                  // This works around a bug in Safari, where input[type=file] 
+                  // This works around a bug in Safari, where input[type=file]
                   // cannot be dynamically set after type has been removed
-                  currentNode.nodeName === 'INPUT' && lcName === 'type' && 
+                  currentNode.nodeName === 'INPUT' && lcName === 'type' &&
                   value === 'file' && (ALLOWED_ATTR[lcName] || !FORBID_ATTR[lcName])) {
                   continue;
-                
             } else {
                 // This avoids a crash in Safari v9.0 with double-ids.
                 // The trick is to first set the id to be empty and then to
-                // remove the attriubute
+                // remove the attribute
                 if (name === 'id') {
@@ -804,3 +833,3 @@ currentNode.setAttribute(name, '');
             } else {
-                body.appendChild( importedNode );
+                body.appendChild(importedNode);
             }
@@ -807,0 +836,0 @@ } else {

No alert changes

Improved metrics

Total package byte prevSize

93649

increased by1.83%

Lines of code

877

increased by3.42%

No dependency changes