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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/177094">177094</a></dd>
<dt>Author</dt> <dd>matthew_hanson@apple.com</dd>
<dt>Date</dt> <dd>2014-12-10 13:51:03 -0800 (Wed, 10 Dec 2014)</dd>
</dl>
<h3>Log Message</h3>
<pre>Merged <a href="http://trac.webkit.org/projects/webkit/changeset/175312">r175312</a>. rdar://problems/19196762</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#branchessafari6003branchLayoutTestsChangeLog">branches/safari-600.3-branch/LayoutTests/ChangeLog</a></li>
<li><a href="#branchessafari6003branchSourceWebCoreChangeLog">branches/safari-600.3-branch/Source/WebCore/ChangeLog</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li><a href="#branchessafari6003branchLayoutTestshttptestscachexhruncommonheaderexpectedtxt">branches/safari-600.3-branch/LayoutTests/http/tests/cache/xhr-uncommon-header-expected.txt</a></li>
<li><a href="#branchessafari6003branchLayoutTestshttptestscachexhruncommonheaderhtml">branches/safari-600.3-branch/LayoutTests/http/tests/cache/xhr-uncommon-header.html</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="branchessafari6003branchLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-600.3-branch/LayoutTests/ChangeLog (177093 => 177094)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.3-branch/LayoutTests/ChangeLog        2014-12-10 21:50:53 UTC (rev 177093)
+++ branches/safari-600.3-branch/LayoutTests/ChangeLog        2014-12-10 21:51:03 UTC (rev 177094)
</span><span class="lines">@@ -1,3 +1,18 @@
</span><ins>+2014-10-29 Chris Dumez <cdumez@apple.com>
+
+ Crash in CachedRawResource::canReuse() when reloading http://dnd.wizards.com/dungeons-and-dragons/story
+ https://bugs.webkit.org/show_bug.cgi?id=138164
+
+ Reviewed by Andreas Kling.
+
+ Add a layout test that does XHR loads from cache with only uncommon
+ HTTP headers to reproduce a crash in CachedRawResource::canReuse()
+ when iterating over a HTTPHeaderMap that had uncommon HTTP headers
+ but no common ones.
+
+ * http/tests/cache/xhr-uncommon-header-expected.txt: Added.
+ * http/tests/cache/xhr-uncommon-header.html: Added.
+
</ins><span class="cx"> 2014-12-10 Matthew Hanson <matthew_hanson@apple.com>
</span><span class="cx">
</span><span class="cx"> Merge r175243. <rdar://problem/19196762>
</span></span></pre></div>
<a id="branchessafari6003branchLayoutTestshttptestscachexhruncommonheaderexpectedtxt"></a>
<div class="addfile"><h4>Added: branches/safari-600.3-branch/LayoutTests/http/tests/cache/xhr-uncommon-header-expected.txt (0 => 177094)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.3-branch/LayoutTests/http/tests/cache/xhr-uncommon-header-expected.txt         (rev 0)
+++ branches/safari-600.3-branch/LayoutTests/http/tests/cache/xhr-uncommon-header-expected.txt        2014-12-10 21:51:03 UTC (rev 177094)
</span><span class="lines">@@ -0,0 +1,11 @@
</span><ins>+Test that we don't crash on xhr loads from cache with only uncommon HTTP headers
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+load
+load
+PASS successfullyParsed is true
+
+TEST COMPLETE
+
</ins></span></pre></div>
<a id="branchessafari6003branchLayoutTestshttptestscachexhruncommonheaderhtml"></a>
<div class="addfile"><h4>Added: branches/safari-600.3-branch/LayoutTests/http/tests/cache/xhr-uncommon-header.html (0 => 177094)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.3-branch/LayoutTests/http/tests/cache/xhr-uncommon-header.html         (rev 0)
+++ branches/safari-600.3-branch/LayoutTests/http/tests/cache/xhr-uncommon-header.html        2014-12-10 21:51:03 UTC (rev 177094)
</span><span class="lines">@@ -0,0 +1,26 @@
</span><ins>+<script src="/js-test-resources/js-test-pre.js"></script>
+<body>
+<script type="text/javascript">
+description("Test that we don't crash on xhr loads from cache with only uncommon HTTP headers");
+jsTestIsAsync = true;
+
+function repeat() {
+ var request2 = new XMLHttpRequest();
+ request2.addEventListener("load", function() { debug("load"); finishJSTest(); }, false);
+ request2.addEventListener("error", function() { debug("error"); finishJSTest(); }, false);
+ request2.addEventListener("abort", function() { debug("abort"); finishJSTest(); }, false);
+ request2.open("GET", "resources/empty.txt", true);
+ request2.setRequestHeader("X-Custom1", "test1");
+ request2.send();
+}
+
+var request = new XMLHttpRequest();
+request.addEventListener("load", function() { debug("load"); repeat(); }, false);
+request.addEventListener("error", function() { debug("error"); repeat(); }, false);
+request.addEventListener("abort", function() { debug("abort"); repeat(); }, false);
+request.open("GET", "resources/empty.txt", true);
+request.setRequestHeader("X-Custom1", "test1");
+request.send();
+</script>
+<script src="/js-test-resources/js-test-post.js"></script>
+</body>
</ins></span></pre></div>
<a id="branchessafari6003branchSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: branches/safari-600.3-branch/Source/WebCore/ChangeLog (177093 => 177094)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-600.3-branch/Source/WebCore/ChangeLog        2014-12-10 21:50:53 UTC (rev 177093)
+++ branches/safari-600.3-branch/Source/WebCore/ChangeLog        2014-12-10 21:51:03 UTC (rev 177094)
</span><span class="lines">@@ -1,3 +1,32 @@
</span><ins>+2014-10-29 Chris Dumez <cdumez@apple.com>
+
+ Crash in CachedRawResource::canReuse() when reloading http://dnd.wizards.com/dungeons-and-dragons/story
+ https://bugs.webkit.org/show_bug.cgi?id=138164
+
+ Reviewed by Andreas Kling.
+
+ This patch fixes a crash when reloading the following URL:
+ http://dnd.wizards.com/dungeons-and-dragons/story
+
+ We were crashing in CachedRawResource::canReuse() because header.key
+ would sometimes be a null String and we would call
+ HashMap::get(nullString).
+
+ The real issue was that header.key was null in the first place, which
+ means that even though the HTTPHeaderMap iterator is valid, it->key
+ is a null String, which should never happen. There was a bug in the
+ HTTPHeaderMapConstIterator() constructor that would cause the
+ iterator key/value pair to not get initialized if the HTTPHeaderMap
+ contained *only* uncommon HTTP headers. This patch updates the
+ constructor so that we fall back to updating the key/value from the
+ uncommon header map, if we failed to initialized from the common
+ header map (because it was empty).
+
+ Test: http/tests/cache/xhr-uncommon-header.html
+
+ * platform/network/HTTPHeaderMap.h:
+ (WebCore::HTTPHeaderMap::HTTPHeaderMapConstIterator::HTTPHeaderMapConstIterator):
+
</ins><span class="cx"> 2014-12-05 Dana Burkart <dburkart@apple.com>
</span><span class="cx">
</span><span class="cx"> Merge r176812. <rdar://problem/19140827>
</span></span></pre>
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