/*

* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#ifndef JAVAVALIDATIONFILTER_H

#define JAVAVALIDATIONFILTER_H

#include <e32std.h>

#include <e32base.h>

#include <http/mhttpfilter.h>

#include <http/rhttpsession.h>

#include <http/cecomfilter.h>

/** The validation filter checks requests and responses to ensure that they are valid. It

    also adds either a succeded or failed event. Most clients will only be intrested in this

    simplified reporting of success. Any error codes are still sent to the client.

*/

class CJavaValidationFilter : public CEComFilter, public MHTTPFilter

{

public:

    static CJavaValidationFilter* InstallFilterL(TAny* aSession);

    ~CJavaValidationFilter();

public: // Methods from MHTTPFilterBase

    /// @see MHTTPFilterBase::MHFRunL

    virtual void MHFRunL(RHTTPTransaction aTransaction, const THTTPEvent& aEvent);

    /// @see MHTTPFilterBase::MHFSessionRunL

    virtual void MHFSessionRunL(const THTTPSessionEvent& aEvent);

    /// @see MHTTPFilterBase::MHFRunError

    virtual TInt MHFRunError(TInt aError, RHTTPTransaction aTransaction,

                             const THTTPEvent& aEvent);

    /// @see MHTTPFilterBase::MHFSessionRunError

    virtual TInt MHFSessionRunError(TInt aError, const THTTPSessionEvent& aEvent);

public: // Methods from MHTTPFilter

    /// @see MHTTPFilter::MHFUnload

    virtual void MHFUnload(RHTTPSession aSession, THTTPFilterHandle aHandle);

    /// @see MHTTPFilter::MHFLoad

    virtual void MHFLoad(RHTTPSession aSession, THTTPFilterHandle aHandle);

private:

    // Constructor

    CJavaValidationFilter();

    // For 2 phase construction. Also installs the filter.

    void ConstructL(RHTTPSession aSession);

    /*void ValidateRequestMethodL(RHTTPTransaction aTransaction);

    TBool ValidateRequestHeadersL(RHTTPTransaction aTransaction);

    void ValidateRequestGetL(RHTTPTransaction aTransaction);

    void ValidateRequestPostL(RHTTPTransaction aTransaction);

    void ValidateRequestPutL(RHTTPTransaction aTransaction);

    void ValidateRequestTraceL(RHTTPTransaction aTransaction);

    void ValidateRequestHeadL(RHTTPTransaction aTransaction);

    void ValidateRequestOptionsL(RHTTPTransaction aTransaction);

    */

    /** Validate status codes. Anything from 400->599 is an error or warning

        @return ETrue if the status code indicates a problem with the transaction

    */

    TBool ValidateResponseStatusCode(RHTTPTransaction aTransaction);

    /** Fails a request if it contains a body.

        @return returns ETrue if the request did contain a body

    */

    //TBool RequestFailIfContainsBodyL(RHTTPTransaction aTransaction);

    /** Fails and cancels a transaction

        @param aTransaction The transaction to cancel

        @param aStatus The status or error that caused the transaction to fail

    */

    void FailAndCancelL(RHTTPTransaction aTransaction, THTTPEvent aStatus);

private:

    TBool iTransactionFailed;

    RHTTPMessage iCurrentMessage;   // it's a small object

    RStringPool iStringPool;

};

#endif // JAVAVALIDATIONFILTER_H