1 files changed, 74 insertions, 0 deletions
diff --git a/WebCore/fileapi/BlobURL.cpp b/WebCore/fileapi/BlobURL.cpp
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+++ b/WebCore/fileapi/BlobURL.cpp
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+/*
+ * 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 "BlobURL.h"
+
+#include "KURL.h"
+#include "PlatformString.h"
+#include "ScriptExecutionContext.h"
+#include "SecurityOrigin.h"
+#include "UUID.h"
+
+namespace WebCore {
+
+KURL BlobURL::createURL(ScriptExecutionContext* scriptExecutionContext)
+{
+    // Create the blob URL in the following format:
+    //     blob:%escaped_origin%/%UUID%
+    // The origin of the host page is encoded in the URL value to allow easy lookup of the origin when the security check needs
+    // to be performed.
+    String urlString = "blob:";
+    urlString += encodeWithURLEscapeSequences(scriptExecutionContext->securityOrigin()->toString());
+    urlString += "/";
+    urlString += createCanonicalUUIDString();
+    return KURL(ParsedURLString, urlString);
+}
+
+KURL BlobURL::getOrigin(const KURL& url)
+{
+    ASSERT(url.protocolIs("blob"));
+
+    unsigned startIndex = url.pathStart();
+    unsigned afterEndIndex = url.pathAfterLastSlash();
+    String origin = url.string().substring(startIndex, afterEndIndex - startIndex);
+    return KURL(ParsedURLString, decodeURLEscapeSequences(origin));
+}
+
+String BlobURL::getIdentifier(const KURL& url)
+{
+    ASSERT(url.protocolIs("blob"));
+
+    unsigned startIndex = url.pathAfterLastSlash();
+    return url.string().substring(startIndex);
+}
+
+} // namespace WebCore