/*
 * Copyright (C) 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.
 */

#ifndef WebResourceLoader_h
#define WebResourceLoader_h

#if ENABLE(NETWORK_PROCESS)

#include "Connection.h"
#include "MessageSender.h"
#include "ShareableResource.h"
#include <WebCore/AuthenticationClient.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>

namespace CoreIPC {
class DataReference;
}

namespace WebCore {
class AuthenticationChallenge;
class ProtectionSpace;
class ResourceBuffer;
class ResourceError;
class ResourceLoader;
class ResourceRequest;
class ResourceResponse;
}

namespace WebKit {

typedef uint64_t ResourceLoadIdentifier;

class WebResourceLoader : public RefCounted<WebResourceLoader>, public CoreIPC::MessageSender<WebResourceLoader>, public WebCore::AuthenticationClient {
public:
    static PassRefPtr<WebResourceLoader> create(PassRefPtr<WebCore::ResourceLoader>);

    ~WebResourceLoader();

    // Used by MessageSender.
    CoreIPC::Connection* connection() const;
    uint64_t destinationID() const;

    void didReceiveWebResourceLoaderMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::MessageDecoder&);

    using RefCounted<WebResourceLoader>::ref;
    using RefCounted<WebResourceLoader>::deref;

    virtual void receivedCredential(const WebCore::AuthenticationChallenge&, const WebCore::Credential&);
    virtual void receivedRequestToContinueWithoutCredential(const WebCore::AuthenticationChallenge&);
    virtual void receivedCancellation(const WebCore::AuthenticationChallenge&);

private:
    WebResourceLoader(PassRefPtr<WebCore::ResourceLoader>);

    void willSendRequest(uint64_t requestID, const WebCore::ResourceRequest&, const WebCore::ResourceResponse& redirectResponse);
    void didReceiveResponse(const WebCore::ResourceResponse&);
    void didReceiveData(const CoreIPC::DataReference&, int64_t encodedDataLength, bool allAtOnce);
    void didFinishResourceLoad(double finishTime);
    void didFailResourceLoad(const WebCore::ResourceError&);
    void didReceiveResource(const ShareableResource::Handle&, double finishTime);

    void canAuthenticateAgainstProtectionSpace(uint64_t requestID, const WebCore::ProtectionSpace&);
    void didReceiveAuthenticationChallenge(const WebCore::AuthenticationChallenge&);
    void didCancelAuthenticationChallenge(const WebCore::AuthenticationChallenge&);

    virtual void refAuthenticationClient() { ref(); }
    virtual void derefAuthenticationClient() { deref(); }

    RefPtr<WebCore::ResourceLoader> m_coreLoader;
    OwnPtr<WebCore::AuthenticationChallenge> m_currentAuthenticationChallenge;
};

} // namespace WebKit

#endif // ENABLE(NETWORK_PROCESS)

#endif // WebResourceLoader_h