/*
 * Copyright (C) 2010, 2011, 2012 Apple 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:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "NetworkProcessConnection.h"

#include "DataReference.h"
#include "NetworkConnectionToWebProcessMessages.h"
#include "WebCoreArgumentCoders.h"
#include "WebProcess.h"
#include "WebResourceBuffer.h"
#include "WebResourceLoadScheduler.h"
#include "WebResourceLoaderMessages.h"
#include <WebCore/CachedResource.h>
#include <WebCore/MemoryCache.h>
#include <WebCore/ResourceBuffer.h>
#include <WebCore/SessionID.h>
#include <WebCore/SharedBuffer.h>

#if ENABLE(NETWORK_PROCESS)

using namespace WebCore;

namespace WebKit {

NetworkProcessConnection::NetworkProcessConnection(IPC::Connection::Identifier connectionIdentifier)
{
    m_connection = IPC::Connection::createClientConnection(connectionIdentifier, this, RunLoop::main());
    m_connection->open();
}

NetworkProcessConnection::~NetworkProcessConnection()
{
}

void NetworkProcessConnection::didReceiveMessage(IPC::Connection* connection, IPC::MessageDecoder& decoder)
{
    if (decoder.messageReceiverName() == Messages::WebResourceLoader::messageReceiverName()) {
        if (WebResourceLoader* webResourceLoader = WebProcess::shared().webResourceLoadScheduler().webResourceLoaderForIdentifier(decoder.destinationID()))
            webResourceLoader->didReceiveWebResourceLoaderMessage(connection, decoder);
        
        return;
    }

    didReceiveNetworkProcessConnectionMessage(connection, decoder);
}

void NetworkProcessConnection::didReceiveSyncMessage(IPC::Connection*, IPC::MessageDecoder&, std::unique_ptr<IPC::MessageEncoder>&)
{
    ASSERT_NOT_REACHED();
}

void NetworkProcessConnection::didClose(IPC::Connection*)
{
    // The NetworkProcess probably crashed.
    WebProcess::shared().networkProcessConnectionClosed(this);
}

void NetworkProcessConnection::didReceiveInvalidMessage(IPC::Connection*, IPC::StringReference, IPC::StringReference)
{
}

#if ENABLE(SHAREABLE_RESOURCE)
void NetworkProcessConnection::didCacheResource(const ResourceRequest& request, const ShareableResource::Handle& handle, SessionID sessionID)
{
    CachedResource* resource = memoryCache()->resourceForRequest(request, sessionID);
    if (!resource)
        return;
    
    RefPtr<SharedBuffer> buffer = handle.tryWrapInSharedBuffer();
    if (!buffer) {
        LOG_ERROR("Unable to create SharedBuffer from ShareableResource handle for resource url %s", request.url().string().utf8().data());
        return;
    }

    resource->tryReplaceEncodedData(buffer.release());
}
#endif

} // namespace WebKit

#endif // ENABLE(NETWORK_PROCESS)
