/*
 * 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 "LibWebRTCNetwork.h"
#include "NetworkConnectionToWebProcessMessages.h"
#include "WebCoreArgumentCoders.h"
#include "WebLoaderStrategy.h"
#include "WebProcess.h"
#include "WebRTCMonitor.h"
#include "WebRTCMonitorMessages.h"
#include "WebRTCResolverMessages.h"
#include "WebRTCSocketMessages.h"
#include "WebResourceLoaderMessages.h"
#include "WebSocketStream.h"
#include "WebSocketStreamMessages.h"
#include <WebCore/CachedResource.h>
#include <WebCore/MemoryCache.h>
#include <WebCore/SessionID.h>
#include <WebCore/SharedBuffer.h>

using namespace WebCore;

namespace WebKit {

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

NetworkProcessConnection::~NetworkProcessConnection()
{
}

void NetworkProcessConnection::didReceiveMessage(IPC::Connection& connection, IPC::Decoder& decoder)
{
    if (decoder.messageReceiverName() == Messages::WebResourceLoader::messageReceiverName()) {
        if (auto* webResourceLoader = WebProcess::singleton().webLoaderStrategy().webResourceLoaderForIdentifier(decoder.destinationID()))
            webResourceLoader->didReceiveWebResourceLoaderMessage(connection, decoder);
        return;
    }
    if (decoder.messageReceiverName() == Messages::WebSocketStream::messageReceiverName()) {
        if (auto* stream = WebSocketStream::streamWithIdentifier(decoder.destinationID()))
            stream->didReceiveMessage(connection, decoder);
        return;
    }

#if USE(LIBWEBRTC)
    if (decoder.messageReceiverName() == Messages::WebRTCSocket::messageReceiverName()) {
        WebProcess::singleton().libWebRTCNetwork().socket(decoder.destinationID()).didReceiveMessage(connection, decoder);
        return;
    }
    if (decoder.messageReceiverName() == Messages::WebRTCMonitor::messageReceiverName()) {
        WebProcess::singleton().libWebRTCNetwork().monitor().didReceiveMessage(connection, decoder);
        return;
    }
    if (decoder.messageReceiverName() == Messages::WebRTCResolver::messageReceiverName()) {
        WebProcess::singleton().libWebRTCNetwork().resolver(decoder.destinationID()).didReceiveMessage(connection, decoder);
        return;
    }
#endif

    didReceiveNetworkProcessConnectionMessage(connection, decoder);
}

void NetworkProcessConnection::didReceiveSyncMessage(IPC::Connection&, IPC::Decoder&, std::unique_ptr<IPC::Encoder>&)
{
    ASSERT_NOT_REACHED();
}

void NetworkProcessConnection::didClose(IPC::Connection&)
{
    // The NetworkProcess probably crashed.
    Ref<NetworkProcessConnection> protector(*this);
    WebProcess::singleton().networkProcessConnectionClosed(this);

    Vector<String> dummyFilenames;
    for (auto& handler : m_writeBlobToFileCompletionHandlers.values())
        handler(dummyFilenames);

    m_writeBlobToFileCompletionHandlers.clear();
}

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

void NetworkProcessConnection::writeBlobsToTemporaryFiles(const Vector<String>& blobURLs, Function<void (const Vector<String>& filePaths)>&& completionHandler)
{
    static uint64_t writeBlobToFileIdentifier;
    uint64_t requestIdentifier = ++writeBlobToFileIdentifier;

    m_writeBlobToFileCompletionHandlers.set(requestIdentifier, WTFMove(completionHandler));

    WebProcess::singleton().networkConnection().connection().send(Messages::NetworkConnectionToWebProcess::WriteBlobsToTemporaryFiles(blobURLs, requestIdentifier), 0);
}

void NetworkProcessConnection::didWriteBlobsToTemporaryFiles(uint64_t requestIdentifier, const Vector<String>& filenames)
{
    auto handler = m_writeBlobToFileCompletionHandlers.take(requestIdentifier);
    if (handler)
        handler(filenames);
}

#if ENABLE(SHAREABLE_RESOURCE)
void NetworkProcessConnection::didCacheResource(const ResourceRequest& request, const ShareableResource::Handle& handle, SessionID sessionID)
{
    CachedResource* resource = MemoryCache::singleton().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);
}
#endif

} // namespace WebKit