********** WebCore blob hacking

WebCore/platform/network/BlobRegistry.cpp

+/*
+ * Copyright (C) 2012 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 "BlobRegistry.h"
+
+#include "BlobURL.h"
+#include "SecurityOrigin.h"
+#include <wtf/HashMap.h>
+#include <wtf/RefPtr.h>
+#include <wtf/ThreadSpecific.h>
+#include <wtf/text/StringHash.h>
+
+using WTF::ThreadSpecific;
+
+namespace WebCore {
+
+#if ENABLE(BLOB)
+
+typedef HashMap<String, RefPtr<SecurityOrigin> > BlobUrlOriginMap;
+static ThreadSpecific<BlobUrlOriginMap>& originMap()
+{
+    AtomicallyInitializedStatic(ThreadSpecific<BlobUrlOriginMap>*, map = new ThreadSpecific<BlobUrlOriginMap>);
+    return *map;
+}
+
+void BlobRegistry::setCachedUniqueOrigin(const KURL& url, SecurityOrigin* origin)
+{
+    if (origin && BlobURL::getOrigin(url) == "null")
+        originMap()->add(url.string(), origin);
+}
+
+void BlobRegistry::clearCachedUniqueOrigin(const KURL& url)
+{
+    if (BlobURL::getOrigin(url) == "null")
+        originMap()->remove(url.string());
+}
+
+PassRefPtr<SecurityOrigin> BlobRegistry::getCachedUniqueOrigin(const KURL& url)
+{
+    return originMap()->get(url.string());
+}
+
+#else
+
+void BlobRegistry::setCachedUniqueOrigin(const KURL& url, SecurityOrigin* origin)
+{
+}
+
+void BlobRegistry::clearCachedUniqueOrigin(const KURL& url)
+{
+}
+
+PassRefPtr<SecurityOrigin> BlobRegistry::getCachedUniqueOrigin(const KURL& url)
+{
+    return 0;
+}
+
+#endif // ENABL(BLOB)
+
+} // namespace WebCore