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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/169243">169243</a></dd>
<dt>Author</dt> <dd>mmaxfield@apple.com</dd>
<dt>Date</dt> <dd>2014-05-22 20:59:11 -0700 (Thu, 22 May 2014)</dd>
</dl>

<h3>Log Message</h3>
<pre>http/tests/security/xss-DENIED-xsl-document-redirect.xml fails with NetworkProcess
https://bugs.webkit.org/show_bug.cgi?id=132523

Patch by Myles C. Maxfield &lt;mmaxfield@apple.com&gt; on 2014-05-22
Reviewed by Alexey Proskuryakov.

Source/WebCore:
We should not manufacture a response in the event of an error during a
synchronous XHR. In addition, this test removes two places that are
sensitive to such a manufactured response.

Updates test expectations.

* loader/DocumentThreadableLoader.cpp:
(WebCore::DocumentThreadableLoader::loadRequest): Don't inspect a
loader response if there is an error
* platform/network/cf/ResourceHandleCFNet.cpp:
(WebCore::ResourceHandle::platformLoadResourceSynchronously): Do not
manufacture a response
* platform/network/mac/ResourceHandleMac.mm:
(WebCore::ResourceHandle::platformLoadResourceSynchronously): Do not
manufacture a response
* xml/XSLTProcessorLibxslt.cpp:
(WebCore::docLoaderFunc): Only use the response's URL if no error
occurred.

LayoutTests:
Two tests have been rebaselined, and re-enable test that now passes. Because of
<a href="http://trac.webkit.org/projects/webkit/changeset/23889">r23889</a>, synchronous XHRs for file: URLs purposely don't invoke error handlers.

* fast/xmlhttprequest/xmlhttprequest-nonexistent-file-expected.txt: Updated
incorrect test description
* fast/xmlhttprequest/resources/xmlhttprequest-nonexistent-file-real.html: Ditto
* platform/mac-wk2/TestExpectations: Re-enable test that now passes.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkLayoutTestsChangeLog">trunk/LayoutTests/ChangeLog</a></li>
<li><a href="#trunkLayoutTestsfastxmlhttprequestresourcesxmlhttprequestnonexistentfilerealhtml">trunk/LayoutTests/fast/xmlhttprequest/resources/xmlhttprequest-nonexistent-file-real.html</a></li>
<li><a href="#trunkLayoutTestsfastxmlhttprequestxmlhttprequestnonexistentfileexpectedtxt">trunk/LayoutTests/fast/xmlhttprequest/xmlhttprequest-nonexistent-file-expected.txt</a></li>
<li><a href="#trunkLayoutTestsplatformmacwk2TestExpectations">trunk/LayoutTests/platform/mac-wk2/TestExpectations</a></li>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreloaderDocumentThreadableLoadercpp">trunk/Source/WebCore/loader/DocumentThreadableLoader.cpp</a></li>
<li><a href="#trunkSourceWebCoreplatformnetworkcfResourceHandleCFNetcpp">trunk/Source/WebCore/platform/network/cf/ResourceHandleCFNet.cpp</a></li>
<li><a href="#trunkSourceWebCoreplatformnetworkmacResourceHandleMacmm">trunk/Source/WebCore/platform/network/mac/ResourceHandleMac.mm</a></li>
<li><a href="#trunkSourceWebCorexmlXSLTProcessorLibxsltcpp">trunk/Source/WebCore/xml/XSLTProcessorLibxslt.cpp</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (169242 => 169243)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog        2014-05-23 03:31:57 UTC (rev 169242)
+++ trunk/LayoutTests/ChangeLog        2014-05-23 03:59:11 UTC (rev 169243)
</span><span class="lines">@@ -1,3 +1,18 @@
</span><ins>+2014-05-22  Myles C. Maxfield  &lt;mmaxfield@apple.com&gt;
+
+        http/tests/security/xss-DENIED-xsl-document-redirect.xml fails with NetworkProcess
+        https://bugs.webkit.org/show_bug.cgi?id=132523
+
+        Reviewed by Alexey Proskuryakov.
+
+        Two tests have been rebaselined, and re-enable test that now passes. Because of
+        r23889, synchronous XHRs for file: URLs purposely don't invoke error handlers.
+
+        * fast/xmlhttprequest/xmlhttprequest-nonexistent-file-expected.txt: Updated
+        incorrect test description
+        * fast/xmlhttprequest/resources/xmlhttprequest-nonexistent-file-real.html: Ditto
+        * platform/mac-wk2/TestExpectations: Re-enable test that now passes.
+
</ins><span class="cx"> 2014-05-22  Simon Fraser  &lt;simon.fraser@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Fix the  compositing/transitions/transform-on-large-layer.html test
</span></span></pre></div>
<a id="trunkLayoutTestsfastxmlhttprequestresourcesxmlhttprequestnonexistentfilerealhtml"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/fast/xmlhttprequest/resources/xmlhttprequest-nonexistent-file-real.html (169242 => 169243)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/xmlhttprequest/resources/xmlhttprequest-nonexistent-file-real.html        2014-05-23 03:31:57 UTC (rev 169242)
+++ trunk/LayoutTests/fast/xmlhttprequest/resources/xmlhttprequest-nonexistent-file-real.html        2014-05-23 03:59:11 UTC (rev 169243)
</span><span class="lines">@@ -71,7 +71,7 @@
</span><span class="cx">     &lt;/head&gt;
</span><span class="cx">     &lt;body onload=&quot;testXHRNonExistentFile()&quot;&gt;
</span><span class="cx">         &lt;p&gt; Bug &lt;a href=&quot;https://bugs.webkit.org/show_bug.cgi?id=22475&quot;&gt;22475&lt;/a&gt;: REGRESSION: Async XMLHttpRequest never finishes on nonexistent files anymore &lt;/p&gt;
</span><del>-        &lt;p&gt; In both cases, readyState 4 should be reached, and error handler should be invoked. &lt;/p&gt;
</del><ins>+        &lt;p&gt; In both cases, readyState 4 should be reached. Because one of the requests is synchronous and for a file: URL, only a single error handler should be invoked. &lt;/p&gt;
</ins><span class="cx">         &lt;div id=&quot;console&quot;/&gt;
</span><span class="cx">     &lt;/body&gt;
</span><span class="cx"> &lt;/html&gt;
</span></span></pre></div>
<a id="trunkLayoutTestsfastxmlhttprequestxmlhttprequestnonexistentfileexpectedtxt"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/fast/xmlhttprequest/xmlhttprequest-nonexistent-file-expected.txt (169242 => 169243)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/fast/xmlhttprequest/xmlhttprequest-nonexistent-file-expected.txt        2014-05-23 03:31:57 UTC (rev 169242)
+++ trunk/LayoutTests/fast/xmlhttprequest/xmlhttprequest-nonexistent-file-expected.txt        2014-05-23 03:59:11 UTC (rev 169243)
</span><span class="lines">@@ -1,7 +1,7 @@
</span><span class="cx"> 
</span><span class="cx"> Bug 22475: REGRESSION: Async XMLHttpRequest never finishes on nonexistent files anymore
</span><span class="cx"> 
</span><del>-In both cases, readyState 4 should be reached, and error handler should be invoked.
</del><ins>+In both cases, readyState 4 should be reached. Because one of the requests is synchronous and for a file: URL, only a single error handler should be invoked.
</ins><span class="cx"> 
</span><span class="cx"> Doing an XHR to a nonexistent file.
</span><span class="cx"> ReadyState handler: readyState = 1
</span></span></pre></div>
<a id="trunkLayoutTestsplatformmacwk2TestExpectations"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/platform/mac-wk2/TestExpectations (169242 => 169243)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/platform/mac-wk2/TestExpectations        2014-05-23 03:31:57 UTC (rev 169242)
+++ trunk/LayoutTests/platform/mac-wk2/TestExpectations        2014-05-23 03:59:11 UTC (rev 169243)
</span><span class="lines">@@ -407,9 +407,6 @@
</span><span class="cx"> webkit.org/b/123431 [ Mavericks ] http/tests/local/link-stylesheet-load-order-preload.html [ Failure ]
</span><span class="cx"> webkit.org/b/123431 [ Mavericks ] http/tests/local/link-stylesheet-load-order.html [ Failure ]
</span><span class="cx"> 
</span><del>-# passes but has different logging
-[ Mavericks ] http/tests/security/xss-DENIED-xsl-document-redirect.xml [ Failure ]
-
</del><span class="cx"> # test results in DRT don't match in browser behavior, test seems broken
</span><span class="cx"> fast/dom/Window/mozilla-focus-blur.html [ Failure ]
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (169242 => 169243)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2014-05-23 03:31:57 UTC (rev 169242)
+++ trunk/Source/WebCore/ChangeLog        2014-05-23 03:59:11 UTC (rev 169243)
</span><span class="lines">@@ -1,3 +1,29 @@
</span><ins>+2014-05-22  Myles C. Maxfield  &lt;mmaxfield@apple.com&gt;
+
+        http/tests/security/xss-DENIED-xsl-document-redirect.xml fails with NetworkProcess
+        https://bugs.webkit.org/show_bug.cgi?id=132523
+
+        Reviewed by Alexey Proskuryakov.
+
+        We should not manufacture a response in the event of an error during a
+        synchronous XHR. In addition, this test removes two places that are
+        sensitive to such a manufactured response.
+
+        Updates test expectations.
+
+        * loader/DocumentThreadableLoader.cpp:
+        (WebCore::DocumentThreadableLoader::loadRequest): Don't inspect a
+        loader response if there is an error
+        * platform/network/cf/ResourceHandleCFNet.cpp:
+        (WebCore::ResourceHandle::platformLoadResourceSynchronously): Do not
+        manufacture a response
+        * platform/network/mac/ResourceHandleMac.mm:
+        (WebCore::ResourceHandle::platformLoadResourceSynchronously): Do not
+        manufacture a response
+        * xml/XSLTProcessorLibxslt.cpp:
+        (WebCore::docLoaderFunc): Only use the response's URL if no error
+        occurred.
+
</ins><span class="cx"> 2014-05-22  Myles C. Maxfield  &lt;litherum@gmail.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Unreviewed typo fix.
</span></span></pre></div>
<a id="trunkSourceWebCoreloaderDocumentThreadableLoadercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/loader/DocumentThreadableLoader.cpp (169242 => 169243)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/loader/DocumentThreadableLoader.cpp        2014-05-23 03:31:57 UTC (rev 169242)
+++ trunk/Source/WebCore/loader/DocumentThreadableLoader.cpp        2014-05-23 03:59:11 UTC (rev 169243)
</span><span class="lines">@@ -410,9 +410,14 @@
</span><span class="cx"> 
</span><span class="cx">     InspectorInstrumentation::documentThreadableLoaderStartedLoadingForClient(&amp;m_document, identifier, m_client);
</span><span class="cx"> 
</span><del>-    // No exception for file:/// resources, see &lt;rdar://problem/4962298&gt;.
-    // Also, if we have an HTTP response, then it wasn't a network error in fact.
-    if (!error.isNull() &amp;&amp; !requestURL.isLocalFile() &amp;&amp; response.httpStatusCode() &lt;= 0) {
</del><ins>+    if (!error.isNull() &amp;&amp; response.httpStatusCode() &lt;= 0) {
+        if (requestURL.isLocalFile()) {
+            // We don't want XMLHttpRequest to raise an exception for file:// resources, see &lt;rdar://problem/4962298&gt;.
+            // FIXME: XMLHttpRequest quirks should be in XMLHttpRequest code, not in DocumentThreadableLoader.cpp.
+            didReceiveResponse(identifier, response);
+            didFinishLoading(identifier, 0.0);
+            return;
+        }
</ins><span class="cx">         m_client-&gt;didFail(error);
</span><span class="cx">         return;
</span><span class="cx">     }
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformnetworkcfResourceHandleCFNetcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/network/cf/ResourceHandleCFNet.cpp (169242 => 169243)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/network/cf/ResourceHandleCFNet.cpp        2014-05-23 03:31:57 UTC (rev 169242)
+++ trunk/Source/WebCore/platform/network/cf/ResourceHandleCFNet.cpp        2014-05-23 03:59:11 UTC (rev 169243)
</span><span class="lines">@@ -512,14 +512,6 @@
</span><span class="cx"> 
</span><span class="cx">     if (error.isNull())
</span><span class="cx">         response = client-&gt;response();
</span><del>-    else {
-        response = ResourceResponse(request.url(), String(), 0, String(), String());
-        // FIXME: ResourceHandleMac also handles authentication errors by setting code to 401. CFNet version should probably do the same.
-        if (error.domain() == String(kCFErrorDomainCFNetwork))
-            response.setHTTPStatusCode(error.errorCode());
-        else
-            response.setHTTPStatusCode(404);
-    }
</del><span class="cx"> 
</span><span class="cx">     data.swap(client-&gt;mutableData());
</span><span class="cx"> }
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformnetworkmacResourceHandleMacmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/network/mac/ResourceHandleMac.mm (169242 => 169243)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/network/mac/ResourceHandleMac.mm        2014-05-23 03:31:57 UTC (rev 169242)
+++ trunk/Source/WebCore/platform/network/mac/ResourceHandleMac.mm        2014-05-23 03:59:11 UTC (rev 169243)
</span><span class="lines">@@ -426,25 +426,6 @@
</span><span class="cx"> 
</span><span class="cx">     if (error.isNull())
</span><span class="cx">         response = client-&gt;response();
</span><del>-    else {
-        // FIXME: We might not ever need to manufacture a response: This might all be dead code.
-        // When exploring removal of this code, we should substitute appropriate ASSERTs.
-        response = ResourceResponse(request.url(), String(), 0, String(), String());
-        if (error.domain() == String(NSURLErrorDomain))
-            switch (error.errorCode()) {
-            case NSURLErrorUserCancelledAuthentication:
-                // FIXME: We don't need to manufacture a 401 response if we say continueWithoutCredentialForAuthenticationChallenge:
-                // in which case we'll get the real failure response. A reading of SynchronousLoaderClient.mm suggests we already do this.
-                response.setHTTPStatusCode(401);
-                break;
-            default:
-                response.setHTTPStatusCode(error.errorCode());
-            }
-        else {
-            // FIXME: This is wrong. We shouldn't need to ever make up a 404.
-            response.setHTTPStatusCode(404);
-        }
-     }
</del><span class="cx"> 
</span><span class="cx">     data.swap(client-&gt;mutableData());
</span><span class="cx"> }
</span></span></pre></div>
<a id="trunkSourceWebCorexmlXSLTProcessorLibxsltcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/xml/XSLTProcessorLibxslt.cpp (169242 => 169243)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/xml/XSLTProcessorLibxslt.cpp        2014-05-23 03:31:57 UTC (rev 169242)
+++ trunk/Source/WebCore/xml/XSLTProcessorLibxslt.cpp        2014-05-23 03:59:11 UTC (rev 169243)
</span><span class="lines">@@ -128,7 +128,10 @@
</span><span class="cx">         bool requestAllowed = globalCachedResourceLoader-&gt;frame() &amp;&amp; globalCachedResourceLoader-&gt;document()-&gt;securityOrigin()-&gt;canRequest(url);
</span><span class="cx">         if (requestAllowed) {
</span><span class="cx">             globalCachedResourceLoader-&gt;frame()-&gt;loader().loadResourceSynchronously(url, AllowStoredCredentials, DoNotAskClientForCrossOriginCredentials, error, response, data);
</span><del>-            requestAllowed = globalCachedResourceLoader-&gt;document()-&gt;securityOrigin()-&gt;canRequest(response.url());
</del><ins>+            if (error.isNull())
+                requestAllowed = globalCachedResourceLoader-&gt;document()-&gt;securityOrigin()-&gt;canRequest(response.url());
+            else
+                data.clear();
</ins><span class="cx">         }
</span><span class="cx">         if (!requestAllowed) {
</span><span class="cx">             data.clear();
</span></span></pre>
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