1 files changed, 154 insertions, 0 deletions
diff --git a/test/sanitizerSpec.js b/test/sanitizerSpec.js
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+++ b/test/sanitizerSpec.js
@@ -0,0 +1,154 @@
+describe('HTML', function(){
+
+  function expectHTML(html) {
+    return expect(new HTML(html).get());
+  }
+
+  it('should echo html', function(){
+    expectHTML('hello<b class="1\'23" align=\'""\'>world</b>.').
+       toEqual('hello<b class="1\'23" align="&quot;&quot;">world</b>.');
+  });
+
+  it('should remove script', function(){
+    expectHTML('a<SCRIPT>evil< / scrIpt >c.').toEqual('ac.');
+  });
+
+  it('should remove nested script', function(){
+    expectHTML('a< SCRIPT >A< SCRIPT >evil< / scrIpt >B< / scrIpt >c.').toEqual('ac.');
+  });
+
+  it('should remove attrs', function(){
+    expectHTML('a<div style="abc">b</div>c').toEqual('a<div>b</div>c');
+  });
+
+  it('should remove style', function(){
+    expectHTML('a<STyle>evil</stYle>c.').toEqual('ac.');
+  });
+
+  it('should remove script and style', function(){
+    expectHTML('a<STyle>evil<script></script></stYle>c.').toEqual('ac.');
+  });
+
+  it('should remove double nested script', function(){
+    expectHTML('a<SCRIPT>ev<script>evil</sCript>il</scrIpt>c.').toEqual('ac.');
+  });
+
+  it('should remove unknown tag names', function(){
+    expectHTML('a<xxx><B>b</B></xxx>c').toEqual('a<b>b</b>c');
+  });
+
+  it('should remove unsafe value', function(){
+    expectHTML('<a href="javascript:alert()">').toEqual('<a></a>');
+  });
+
+  it('should handle self closed elements', function(){
+    expectHTML('a<hr/>c').toEqual('a<hr/>c');
+  });
+
+  it('should handle namespace', function(){
+    expectHTML('a<my:hr/><my:div>b</my:div>c').toEqual('abc');
+  });
+
+  it('should handle improper html', function(){
+    expectHTML('< div id="</div>" alt=abc href=\'"\' >text< /div>').
+      toEqual('<div id="&lt;/div&gt;" alt="abc" href="&quot;">text</div>');
+  });
+
+  it('should handle improper html2', function(){
+    expectHTML('< div id="</div>" / >').
+      toEqual('<div id="&lt;/div&gt;"/>');
+  });
+
+  describe('htmlSanitizerWriter', function(){
+    var writer, html;
+    beforeEach(function(){
+      html = '';
+      writer = htmlSanitizeWriter({push:function(text){html+=text;}});
+    });
+
+    it('should write basic HTML', function(){
+      writer.chars('before');
+      writer.start('div', {id:'123'}, false);
+      writer.chars('in');
+      writer.end('div');
+      writer.chars('after');
+
+      expect(html).toEqual('before<div id="123">in</div>after');
+    });
+
+    it('should escape text nodes', function(){
+      writer.chars('a<div>&</div>c');
+      expect(html).toEqual('a&lt;div&gt;&amp;&lt;/div&gt;c');
+    });
+
+    it('should not double escape entities', function(){
+      writer.chars('&nbsp;&gt;&lt;');
+      expect(html).toEqual('&nbsp;&gt;&lt;');
+    });
+
+    it('should escape IE script', function(){
+      writer.chars('&{}');
+      expect(html).toEqual('&amp;{}');
+    });
+
+    it('should escape attributes', function(){
+      writer.start('div', {id:'\"\'<>'});
+      expect(html).toEqual('<div id="&quot;\'&lt;&gt;">');
+    });
+
+    it('should ignore missformed elements', function(){
+      writer.start('d>i&v', {});
+      expect(html).toEqual('');
+    });
+
+    it('should ignore unknown attributes', function(){
+      writer.start('div', {unknown:""});
+      expect(html).toEqual('<div>');
+    });
+
+    describe('javascript URL attribute', function(){
+      beforeEach(function(){
+        this.addMatchers({
+          toBeValidUrl: function(){
+            return !isJavaScriptUrl(this.actual);
+          }
+        });
+      });
+
+      it('should ignore javascript:', function(){
+        expect('JavaScript:abc').not.toBeValidUrl();
+        expect(' \n Java\n Script:abc').not.toBeValidUrl();
+        expect('JavaScript/my.js').toBeValidUrl();
+      });
+
+      it('should ignore dec encoded javascript:', function(){
+        expect('&#106;&#97;&#118;&#97;&#115;&#99;&#114;&#105;&#112;&#116;&#58;').not.toBeValidUrl();
+        expect('&#106&#97;&#118;&#97;&#115;&#99;&#114;&#105;&#112;&#116;&#58;').not.toBeValidUrl();
+        expect('&#106 &#97;&#118;&#97;&#115;&#99;&#114;&#105;&#112;&#116;&#58;').not.toBeValidUrl();
+      });
+
+      it('should ignore decimal with leading 0 encodede javascript:', function(){
+        expect('&#0000106&#0000097&#0000118&#0000097&#0000115&#0000099&#0000114&#0000105&#0000112&#0000116&#0000058').not.toBeValidUrl();
+        expect('&#0000106 &#0000097&#0000118&#0000097&#0000115&#0000099&#0000114&#0000105&#0000112&#0000116&#0000058').not.toBeValidUrl();
+        expect('&#0000106; &#0000097&#0000118&#0000097&#0000115&#0000099&#0000114&#0000105&#0000112&#0000116&#0000058').not.toBeValidUrl();
+      });
+
+      it('should ignore hex encoded javascript:', function(){
+        expect('&#x6A&#x61&#x76&#x61&#x73&#x63&#x72&#x69&#x70&#x74&#x3A;').not.toBeValidUrl();
+        expect('&#x6A;&#x61&#x76&#x61&#x73&#x63&#x72&#x69&#x70&#x74&#x3A;').not.toBeValidUrl();
+        expect('&#x6A &#x61&#x76&#x61&#x73&#x63&#x72&#x69&#x70&#x74&#x3A;').not.toBeValidUrl();
+      });
+
+      it('should ignore hex encoded whitespace javascript:', function(){
+        expect('jav&#x09;ascript:alert("A");').not.toBeValidUrl();
+        expect('jav&#x0A;ascript:alert("B");').not.toBeValidUrl();
+        expect('jav&#x0A ascript:alert("C");').not.toBeValidUrl();
+        expect('jav\u0000ascript:alert("D");').not.toBeValidUrl();
+        expect('java\u0000\u0000script:alert("D");').not.toBeValidUrl();
+        expect(' &#14; java\u0000\u0000script:alert("D");').not.toBeValidUrl();
+      });
+    });
+
+  });
+
+});