Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 111 insertions, 0 deletions

diff --git a/Source/WebCore/loader/PingLoader.cpp b/Source/WebCore/loader/PingLoader.cpp
new file mode 100644
index 0000000..280620a
--- /dev/null
+++ b/Source/WebCore/loader/PingLoader.cpp
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2010 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "config.h"
+#include "PingLoader.h"
+
+#include "FormData.h"
+#include "Frame.h"
+#include "FrameLoaderClient.h"
+#include "Page.h"
+#include "ProgressTracker.h"
+#include "ResourceHandle.h"
+#include "SecurityOrigin.h"
+#include <wtf/OwnPtr.h>
+#include <wtf/UnusedParam.h>
+#include <wtf/text/CString.h>
+
+namespace WebCore {
+
+void PingLoader::loadImage(Frame* frame, const KURL& url)
+{
+    if (!frame->document()->securityOrigin()->canDisplay(url)) {
+        FrameLoader::reportLocalLoadFailed(frame, url);
+        return;
+    }
+
+    ResourceRequest request(url);
+    request.setTargetType(ResourceRequest::TargetIsImage);
+    request.setHTTPHeaderField("Cache-Control", "max-age=0");
+    if (!SecurityOrigin::shouldHideReferrer(request.url(), frame->loader()->outgoingReferrer()))
+        request.setHTTPReferrer(frame->loader()->outgoingReferrer());
+    frame->loader()->addExtraFieldsToSubresourceRequest(request);
+    OwnPtr<PingLoader> pingLoader = adoptPtr(new PingLoader(frame, request));
+    
+    // Leak the ping loader, since it will kill itself as soon as it receives a response.
+    PingLoader* leakedPingLoader = pingLoader.leakPtr();
+    UNUSED_PARAM(leakedPingLoader);
+}
+
+// http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#hyperlink-auditing
+void PingLoader::sendPing(Frame* frame, const KURL& pingURL, const KURL& destinationURL)
+{
+    ResourceRequest request(pingURL);
+    request.setTargetType(ResourceRequest::TargetIsSubresource);
+    request.setHTTPMethod("POST");
+    request.setHTTPContentType("text/ping");
+    request.setHTTPBody(FormData::create("PING"));
+    request.setHTTPHeaderField("Cache-Control", "max-age=0");
+    frame->loader()->addExtraFieldsToSubresourceRequest(request);
+
+    SecurityOrigin* sourceOrigin = frame->document()->securityOrigin();
+    RefPtr<SecurityOrigin> pingOrigin = SecurityOrigin::create(pingURL);
+    FrameLoader::addHTTPOriginIfNeeded(request, sourceOrigin->toString());
+    request.setHTTPHeaderField("Ping-To", destinationURL);
+    if (sourceOrigin->isSameSchemeHostPort(pingOrigin.get()))
+        request.setHTTPHeaderField("Ping-From", frame->document()->url());
+    else if (!SecurityOrigin::shouldHideReferrer(pingURL, frame->loader()->outgoingReferrer()))
+        request.setHTTPReferrer(frame->loader()->outgoingReferrer());
+    OwnPtr<PingLoader> pingLoader = adoptPtr(new PingLoader(frame, request));
+    
+    // Leak the ping loader, since it will kill itself as soon as it receives a response.
+    PingLoader* leakedPingLoader = pingLoader.leakPtr();
+    UNUSED_PARAM(leakedPingLoader);
+}
+
+PingLoader::PingLoader(Frame* frame, const ResourceRequest& request)
+    : m_timeout(this, &PingLoader::timeout)
+{
+    unsigned long identifier = frame->page()->progress()->createUniqueIdentifier();
+    m_shouldUseCredentialStorage = frame->loader()->client()->shouldUseCredentialStorage(frame->loader()->activeDocumentLoader(), identifier);
+    m_handle = ResourceHandle::create(frame->loader()->networkingContext(), request, this, false, false);
+
+    // If the server never responds, FrameLoader won't be able to cancel this load and
+    // we'll sit here waiting forever. Set a very generous timeout, just in case.
+    m_timeout.startOneShot(60000);
+}
+
+PingLoader::~PingLoader()
+{
+    m_handle->cancel();
+}
+
+}