dompurify - npm Package Compare versions

Comparing version 0.8.0 to 0.8.1

bower.json

 {
   "name": "DOMPurify",
-  "version": "0.8.0",
+  "version": "0.8.1",
   "homepage": "https://github.com/cure53/DOMPurify",
@@ -5,0 +5,0 @@ "author": "Cure53 <[e-mail]>",

dist/purify.min.js

@@ -1,2 +0,2 @@
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r=J(e);ne("beforeSanitizeShadowDOM",e,null);while(t=r.nextNode()){ne("uponSanitizeShadowNode",t,null);if(X(t)){continue}if(t.content instanceof i){re(t.content)}te(t)}ne("afterSanitizeShadowDOM",e,null)};var ne=function(e,t,n){if(!y[e]){return}y[e].forEach(function(e){e.call(r,t,n,I)})};r.sanitize=function(e,n){var o,l,s,f,c;if(!e){e=""}if(typeof e!=="string"){if(typeof e.toString!=="function"){throw new TypeError("toString is not a function")}else{e=e.toString()}}if(!r.isSupported){if(typeof t.toStaticHTML==="object"||typeof t.toStaticHTML==="function"){return t.toStaticHTML(e)}return e}P(n);r.removed=[];if(!z&&!C&&e.indexOf("<")===-1){return e}o=K(e);if(!o){return z?null:""}f=J(o);while(l=f.nextNode()){if(l.nodeType===3&&l===s){continue}if(X(l)){continue}if(l.content instanceof i){re(l.content)}te(l);s=l}if(z){if(R){c=h.call(o.ownerDocument);while(o.firstChild){c.appendChild(o.firstChild)}}else{c=o}if(F){c=g.call(a,c,true)}return c}return C?o.outerHTML:o.innerHTML};r.addHook=function(e,t){if(typeof t!=="function"){return}y[e]=y[e]||[];y[e].push(t)};r.removeHook=function(e){if(y[e]){y[e].pop()}};r.removeHooks=function(e){if(y[e]){y[e]=[]}};r.removeAllHooks=function(){y={}};return r});
 //# sourceMappingURL=./dist/purify.min.js.map

package.json

@@ -40,3 +40,3 @@ {
   "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": "0.8.0",
+  "version": "0.8.1",
   "main": "src/purify.js",
@@ -43,0 +43,0 @@ "directories": {

README.md

@@ -9,3 +9,3 @@ # 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?branch=master)](https://travis-ci.org/cure53/DOMPurify)
 
-DOMPurify is written in JavaScript and works in all modern browsers (Safari, Opera (15+), Internet Explorer (10+), Edge, Firefox and Chrome - as well as almost anything else using Blink or WebKit). It doesn't break on IE6 or other legacy browsers. It simply does nothing there. Our automated tests cover [10 different browsers](https://github.com/cure53/DOMPurify/blob/master/test/karma.conf.js#L145) 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).
+DOMPurify is written in JavaScript and works in all modern browsers (Safari, Opera (15+), Internet Explorer (10+), Edge, Firefox and Chrome - as well as almost anything else using Blink or WebKit). It doesn't break on IE6 or other legacy browsers. It simply does nothing there. 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).
 
@@ -12,0 +12,0 @@ 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 = '0.8.0';
+    DOMPurify.version = '0.8.1';
 
@@ -488,2 +488,3 @@ /**
                 (!currentNode.content || !currentNode.content.firstElementChild)) {
+            DOMPurify.removed.push({element: currentNode.cloneNode()});
             currentNode.innerHTML = currentNode.textContent.replace(/</g, '&lt;');
@@ -498,3 +499,6 @@ }
             content = content.replace(ERB_EXPR, ' ');
-            currentNode.textContent = content;
+            if (currentNode.textContent !== content) {
+                DOMPurify.removed.push({element: currentNode.cloneNode()});
+                currentNode.textContent = content;
+            }
         }
@@ -597,30 +601,47 @@
 
-            if (
-                /* Check the name is permitted */
-                (ALLOWED_ATTR[lcName] && !FORBID_ATTR[lcName] && (
-                  /* Check no script, data or unknown possibly unsafe URI
-                     unless we know URI values are safe for that attribute */
-                  URI_SAFE_ATTRIBUTES[lcName] ||
-                  IS_ALLOWED_URI.test(value.replace(ATTR_WHITESPACE,'')) ||
-                  /* Keep image data URIs alive if src is allowed */
-                  (lcName === 'src' && value.indexOf('data:') === 0 &&
-                   DATA_URI_TAGS[currentNode.nodeName.toLowerCase()])
-                )) ||
-                /* Allow potentially valid data-* attributes:
-                 * At least one character after "-" (https://html.spec.whatwg.org/multipage/dom.html#embedding-custom-non-visible-data-with-the-data-*-attributes)
-                 * XML-compatible (https://html.spec.whatwg.org/multipage/infrastructure.html#xml-compatible and http://www.w3.org/TR/xml/#d0e804)
-                 * We don't need to check the value; it's always URI safe.
-                 */
-                 (ALLOW_DATA_ATTR && DATA_ATTR.test(lcName)) ||
-                 /* Allow unknown protocols:
-                  * This provides support for links that are handled by protocol handlers which may be unknown
-                  * ahead of time, e.g. fb:, spotify:
-                  */
-                 (ALLOW_UNKNOWN_PROTOCOLS && !IS_SCRIPT_OR_DATA.test(value.replace(ATTR_WHITESPACE,'')))
-            ) {
-                /* Handle invalid data-* attribute set by try-catching it */
-                try {
-                    currentNode.setAttribute(name, value);
-                } catch (e) {}
+            /* Allow valid data-* attributes: At least one character after "-"
+               (https://html.spec.whatwg.org/multipage/dom.html#embedding-custom-non-visible-data-with-the-data-*-attributes)
+               XML-compatible (https://html.spec.whatwg.org/multipage/infrastructure.html#xml-compatible and http://www.w3.org/TR/xml/#d0e804)
+               We don't need to check the value; it's always URI safe. */
+            if (ALLOW_DATA_ATTR && DATA_ATTR.test(lcName)) {
+                // This attribute is safe
             }
+            /* Otherwise, check the name is permitted */
+            else if (!ALLOWED_ATTR[lcName] || FORBID_ATTR[lcName]) {
+                continue;
+            }
+            /* Check value is safe. First, is attr inert? If so, is safe */
+            else if (URI_SAFE_ATTRIBUTES[lcName]) {
+                // This attribute is safe
+            }
+            /* Check no script, data or unknown possibly unsafe URI
+               unless we know URI values are safe for that attribute */
+            else if (IS_ALLOWED_URI.test(value.replace(ATTR_WHITESPACE,''))) {
+                // This attribute is safe
+            }
+            /* Keep image data URIs alive if src is allowed */
+            else if (
+                lcName === 'src' &&
+                value.indexOf('data:') === 0 &&
+                DATA_URI_TAGS[currentNode.nodeName.toLowerCase()]) {
+                // This attribute is safe
+            }
+            /* Allow unknown protocols: This provides support for links that
+               are handled by protocol handlers which may be unknown ahead of
+               time, e.g. fb:, spotify: */
+            else if (
+                ALLOW_UNKNOWN_PROTOCOLS &&
+                !IS_SCRIPT_OR_DATA.test(value.replace(ATTR_WHITESPACE,''))) {
+                // This attribute is safe
+            }
+            /* Anything else, presume unsafe, do not add it back */
+            else {
+                continue;
+            }
+
+            /* Handle invalid data-* attribute set by try-catching it */
+            try {
+                currentNode.setAttribute(name, value);
+                DOMPurify.removed.pop();
+            } catch (e) {}
         }
@@ -837,3 +858,3 @@
     DOMPurify.removeAllHooks = function() {
-        hooks = [];
+        hooks = {};
     };
@@ -840,0 +861,0 @@

test/karma.conf.js

@@ -103,10 +103,18 @@ module.exports = function(config) {
       },
-      bs_win7_firefox_12: {
+      bs_win7_firefox_20: {
         base: 'BrowserStack',
         device: null,
         os: 'Windows',
-        browser_version: '12.0',
+        browser_version: '20.0',
         browser: 'firefox',
         os_version: '7'
       },
+      bs_win7_firefox_15: {
+        base: 'BrowserStack',
+        device: null,
+        os: 'Windows',
+        browser_version: '15.0',
+        browser: 'firefox',
+        os_version: '7'
+      },
       bs_win81_chrome_22: {
@@ -153,3 +161,4 @@ base: 'BrowserStack',
       'bs_win81_opera_31',
-      'bs_win7_firefox_12',
+      'bs_win7_firefox_20',
+      'bs_win7_firefox_15',
       'bs_win81_chrome_22',
@@ -156,0 +165,0 @@ 'bs_win10_edge_13',

test/test-suite.js

@@ -81,3 +81,3 @@ module.exports = function(DOMPurify, window, tests, xssTests) {
       assert.contains( DOMPurify.sanitize( '<b>he{{evil<script>alert(1)</script><form><img src=x name=textContent></form>}}ya</b>', {SAFE_FOR_TEMPLATES: true}), 
-          ["<b>he  ya</b>", "<b>he </b>", "<b>he <form><img src=\"x\"></form> ya</b>"] // Investigate on Safari 8! 
+          ["<b>he  ya</b>", "<b>he </b>", "<b>he <form><img src=\"x\"></form> ya</b>"]
       );
@@ -278,4 +278,10 @@ assert.equal( DOMPurify.sanitize( '<a>123<% <b>456}}</b><style>{{ alert(1) }}</style>456 %></a>', {SAFE_FOR_TEMPLATES: true}), "<a>123 <b> </b><style> </style> </a>" );
 
+  QUnit.test( 'Regression-Test to make sure #166 stays fixed', function (assert) {
+      var dirty = '<p onFoo="123">HELLO</p>';
+      var modified = '<p>HELLO</p>';
+      assert.equal(modified, DOMPurify.sanitize(dirty, {ALLOW_UNKNOWN_PROTOCOLS: true}));
+  } );  
+
   // Test 1 to check if the element count in DOMPurify.removed is correct
-  QUnit.test( 'DOMPurify.removed shoud contain one element', function (assert) {
+  QUnit.test( 'DOMPurify.removed should contain one element', function (assert) {
       var dirty = '<svg onload=alert(1)><filter><feGaussianBlur /></filter></svg>';
@@ -287,7 +293,56 @@ DOMPurify.sanitize(dirty);
   // Test 2 to check if the element count in DOMPurify.removed is correct
-  QUnit.test( 'DOMPurify.removed shoud contain one element', function (assert) {
+  QUnit.test( 'DOMPurify.removed should contain two elements', function (assert) {
       var dirty = '1<script>alert(1)<\/script><svg onload=alert(1)><filter><feGaussianBlur /></filter></svg>';
       DOMPurify.sanitize(dirty);
       assert.equal(DOMPurify.removed.length, 2);
-  } );  
+  } );
+
+  // Test 3 to check if the element count in DOMPurify.removed is correct
+  QUnit.test( 'DOMPurify.removed should be correct', function (assert) {
+      var dirty = '<img src=x onerror="alert(1)">';
+      DOMPurify.sanitize(dirty);
+      assert.equal(DOMPurify.removed.length, 1);
+  } );
+
+  // Test 4 to check that DOMPurify.removed is correct in SAFE_FOR_TEMLATES mode 
+  QUnit.test( 'DOMPurify.removed should be correct in SAFE_FOR_TEMPLATES mode', function (assert) {
+      var dirty = '<a>123{{456}}</a>';
+      DOMPurify.sanitize(dirty, {WHOLE_DOCUMENT: true, SAFE_FOR_TEMPLATES: true});
+      assert.equal(DOMPurify.removed.length, 1);
+  } );
+
+  // Test 5 to check that DOMPurify.removed is correct in SAFE_FOR_TEMLATES mode 
+  QUnit.test( 'DOMPurify.removed should be correct in SAFE_FOR_TEMPLATES mode', function (assert) {
+      var dirty = '<a>123{{456}}<b>456{{789}}</b></a>';
+      DOMPurify.sanitize(dirty, {WHOLE_DOCUMENT: true, SAFE_FOR_TEMPLATES: true});
+      assert.equal(DOMPurify.removed.length, 2);
+  } );
+
+  // Test 6 to check that DOMPurify.removed is correct in SAFE_FOR_TEMLATES mode 
+  QUnit.test( 'DOMPurify.removed should be correct in SAFE_FOR_TEMPLATES mode', function (assert) {
+      var dirty = '<img src=1 width="{{123}}">';
+      DOMPurify.sanitize(dirty, {WHOLE_DOCUMENT: true, SAFE_FOR_TEMPLATES: true});
+      assert.equal(DOMPurify.removed.length, 1);
+  } );
+
+  // Test 7 to check that DOMPurify.removed is correct in SAFE_FOR_JQUERY mode 
+  QUnit.test( 'DOMPurify.removed should be correct in SAFE_FOR_JQUERY mode', function (assert) {
+      var dirty = '<option><iframe></select><b><script>alert(1)<\/script>';
+      DOMPurify.sanitize(dirty, {WHOLE_DOCUMENT: true, SAFE_FOR_JQUERY: true});
+      assert.contains(DOMPurify.removed.length, [1,3]); // jsdom removes three nodes
+  } );
+
+  // Test 8 to check that DOMPurify.removed is correct if tags are clean 
+  QUnit.test( 'DOMPurify.removed should not contain elements if tags are permitted', function (assert) {
+      var dirty = '<a>123</a>';
+      DOMPurify.sanitize(dirty);
+      assert.equal(DOMPurify.removed.length, 0);
+  } );
+
+  // Test 9 to check that DOMPurify.removed is correct if the tags and attributes are clean
+  QUnit.test( 'DOMPurify.removed should not contain elements if all tags and attrs are permitted', function (assert) {
+      var dirty = '<img src=x>';
+      DOMPurify.sanitize(dirty);
+      assert.equal(DOMPurify.removed.length, 0);
+  } );
 }

No alert changes

Improved metrics

Total package byte prevSize

646830

increased by0.62%

Lines of code

10786

increased by0.72%

No dependency changes