Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 178 insertions, 0 deletions

diff --git a/Source/WebCore/platform/network/BlobRegistryImpl.cpp b/Source/WebCore/platform/network/BlobRegistryImpl.cpp
new file mode 100644
index 0000000..2c4e8fa
--- /dev/null
+++ b/Source/WebCore/platform/network/BlobRegistryImpl.cpp
@@ -0,0 +1,178 @@
+/*
+ * 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"
+
+#if ENABLE(BLOB)
+
+#include "BlobRegistryImpl.h"
+
+#include "BlobResourceHandle.h"
+#include "ResourceError.h"
+#include "ResourceHandle.h"
+#include "ResourceLoader.h"
+#include "ResourceRequest.h"
+#include "ResourceResponse.h"
+#include <wtf/MainThread.h>
+#include <wtf/StdLibExtras.h>
+
+namespace WebCore {
+
+#if !PLATFORM(CHROMIUM)
+BlobRegistry& blobRegistry()
+{
+    ASSERT(isMainThread());
+    DEFINE_STATIC_LOCAL(BlobRegistryImpl, instance, ());
+    return instance;
+}
+#endif
+
+bool BlobRegistryImpl::shouldLoadResource(const ResourceRequest& request) const
+{
+    // If the resource is not fetched using the GET method, bail out.
+    if (!equalIgnoringCase(request.httpMethod(), "GET"))
+        return false;
+
+    return true;
+}
+
+PassRefPtr<ResourceHandle> BlobRegistryImpl::createResourceHandle(const ResourceRequest& request, ResourceHandleClient* client)
+{
+    if (!shouldLoadResource(request))
+        return 0;
+
+    return BlobResourceHandle::create(m_blobs.get(request.url().string()), request, client);
+}
+
+bool BlobRegistryImpl::loadResourceSynchronously(const ResourceRequest& request, ResourceError& error, ResourceResponse& response, Vector<char>& data)
+{
+    if (!shouldLoadResource(request))
+        return false;
+
+    BlobResourceHandle::loadResourceSynchronously(m_blobs.get(request.url().string()), request, error, response, data);
+    return true;
+}
+
+void BlobRegistryImpl::appendStorageItems(BlobStorageData* blobStorageData, const BlobDataItemList& items)
+{
+    for (BlobDataItemList::const_iterator iter = items.begin(); iter != items.end(); ++iter) {
+        if (iter->type == BlobDataItem::Data)
+            blobStorageData->m_data.appendData(iter->data, iter->offset, iter->length);
+        else {
+            ASSERT(iter->type == BlobDataItem::File);
+            blobStorageData->m_data.appendFile(iter->path, iter->offset, iter->length, iter->expectedModificationTime);
+        }
+    }
+}
+
+void BlobRegistryImpl::appendStorageItems(BlobStorageData* blobStorageData, const BlobDataItemList& items, long long offset, long long length)
+{
+    ASSERT(length != BlobDataItem::toEndOfFile);
+
+    BlobDataItemList::const_iterator iter = items.begin();
+    if (offset) {
+        for (; iter != items.end(); ++iter) {
+            if (offset >= iter->length)
+                offset -= iter->length;
+            else
+                break;
+        }
+    }
+
+    for (; iter != items.end() && length > 0; ++iter) {
+        long long currentLength = iter->length - offset;
+        long long newLength = currentLength > length ? length : currentLength;
+        if (iter->type == BlobDataItem::Data)
+            blobStorageData->m_data.appendData(iter->data, iter->offset + offset, newLength);
+        else {
+            ASSERT(iter->type == BlobDataItem::File);
+            blobStorageData->m_data.appendFile(iter->path, iter->offset + offset, newLength, iter->expectedModificationTime);
+        }
+        length -= newLength;
+        offset = 0;
+    }
+}
+
+void BlobRegistryImpl::registerBlobURL(const KURL& url, PassOwnPtr<BlobData> blobData)
+{
+    ASSERT(isMainThread());
+
+    RefPtr<BlobStorageData> blobStorageData = BlobStorageData::create(blobData->contentType(), blobData->contentDisposition());
+
+    // The blob data is stored in the "canonical" way. That is, it only contains a list of Data and File items.
+    // 1) The Data item is denoted by the raw data and the range.
+    // 2) The File item is denoted by the file path, the range and the expected modification time.
+    // All the Blob items in the passing blob data are resolved and expanded into a set of Data and File items.
+
+    for (BlobDataItemList::const_iterator iter = blobData->items().begin(); iter != blobData->items().end(); ++iter) {
+        switch (iter->type) {
+        case BlobDataItem::Data:
+            blobStorageData->m_data.appendData(iter->data, 0, iter->data->length());
+            break;
+        case BlobDataItem::File:
+            blobStorageData->m_data.appendFile(iter->path, iter->offset, iter->length, iter->expectedModificationTime);
+            break;
+        case BlobDataItem::Blob:
+            if (m_blobs.contains(iter->url.string()))
+                appendStorageItems(blobStorageData.get(), m_blobs.get(iter->url.string())->items(), iter->offset, iter->length);
+            break;
+        }
+    }
+
+    m_blobs.set(url.string(), blobStorageData);
+}
+
+void BlobRegistryImpl::registerBlobURL(const KURL& url, const KURL& srcURL)
+{
+    ASSERT(isMainThread());
+
+    RefPtr<BlobStorageData> src = m_blobs.get(srcURL.string());
+    ASSERT(src);
+    if (!src)
+        return;
+
+    m_blobs.set(url.string(), src);
+}
+
+void BlobRegistryImpl::unregisterBlobURL(const KURL& url)
+{
+    ASSERT(isMainThread());
+    m_blobs.remove(url.string());
+}
+
+PassRefPtr<BlobStorageData> BlobRegistryImpl::getBlobDataFromURL(const KURL& url) const
+{
+    ASSERT(isMainThread());
+    return m_blobs.get(url.string());
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(BLOB)