/*

* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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 HTTPREQUESTHEADERMANAGER_H

#define HTTPREQUESTHEADERMANAGER_H

//  INCLUDES

//#include "httpfilteracceptheaderinterface.h"

#include <http/rhttpheaders.h>

#include <centralrepository.h>

namespace WebCore {

    struct ResourceRequest;

};

class HttpSessionManager;

// CLASS DECLARATION

/**

*  class handling dynamic request headers.

*  This class reads the necessary data from the central repository

*  and constructs the request headers accordingly. Some optimization

*  is also provided.

*

*  @since 5.0

*/

class HttpRequestHeaderManager : public CBase

    {

     public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static HttpRequestHeaderManager* NewL(RHTTPSession& aSession);

        /**

        * Destructor.

        */

        virtual ~HttpRequestHeaderManager();

    public: // new functions

        /**

        * Add all managed request headers

        * @since 5.0

        * @param aHeaders An instance of RHTTPHeaders from the current

        *        transaction.

        * @param aRequest Reference to the active ResourceRequest object submitted by WebCore

        */

        void AddAllHeadersL(RHTTPHeaders& aHeaders, const WebCore::ResourceRequest& aRequest);

        /**

        * Sets the HTTP Accept header in the RHTTPHeaders object

        * @since 5.0

        * @param aHeaders An instance of RHTTPHeaders from the current

        *        transaction.

        * @param aRequest Reference to the active ResourceRequest object submitted by WebCore

        */

        void SetAcceptHeaderL(RHTTPHeaders& aHeaders, const WebCore::ResourceRequest& aRequest);

        /**

        * Sets the HTTP client Accept header in the RHTTPHeaders object

        * @since 5.0

        * @param aHeaders An instance of RHTTPHeaders from the current

        *        transaction.

        * @param aRequest Reference to the active ResourceRequest object submitted by WebCore

        */

        void SetClientAcceptHeaderL(RHTTPHeaders& aHeaders, const WebCore::ResourceRequest& aRequest);

        /**

        * Sets the HTTP Cache-Control header in the RHTTPHeaders object

        * @since 5.0

        * @param aHeaders An instance of RHTTPHeaders from the current

        *        transaction.

        * @param aRequest Reference to the active ResourceRequest object submitted by WebCore

        */

        void SetCacheControlHeadersL(RHTTPHeaders& aHeaders, const WebCore::ResourceRequest& aRequest);

        /**

        * Sets the HTTP Content-Type header in the RHTTPHeaders object for POST requests

        * @since 5.0

        * @param aHeaders An instance of RHTTPHeaders from the current

        *        transaction.

        * @param aRequest Reference to the active ResourceRequest object submitted by WebCore

        */

        void SetContentTypeHeaderL(RHTTPHeaders& aHeaders, const WebCore::ResourceRequest& aRequest);

        /**

        * Sets the HTTP Referer header in the RHTTPHeaders object

        * @since 5.0

        * @param aHeaders An instance of RHTTPHeaders from the current

        *        transaction.

        * @param aRequest Reference to the active ResourceRequest object submitted by WebCore

        */

        void SetRefererHeaderL(RHTTPHeaders& aHeaders, const WebCore::ResourceRequest& aRequest);

        /**

        * Sets the HTTP Accept-Language header in the RHTTPHeaders object

        * @since 5.0

        * @param aHeaders An instance of RHTTPHeaders from the current

        *        transaction.

        * @param aRequest Reference to the active ResourceRequest object submitted by WebCore

        */

		void SetAcceptLanguageHeaderL(RHTTPHeaders& aHeaders, const WebCore::ResourceRequest& aRequest);

        /**

        * Sets the HTTP Accept-Charset header in the RHTTPHeaders object

        * @since 5.0

        * @param aHeaders An instance of RHTTPHeaders from the current

        *        transaction.

        * @param aRequest Reference to the active ResourceRequest object submitted by WebCore

        */

		void SetAcceptCharsetHeaderL(RHTTPHeaders& aHeaders, const WebCore::ResourceRequest& aRequest);

        /**

        * Sets the HTTP Connection : Keep-Alive header in the RHTTPHeaders object

        * @since 5.0

        * @param aHeaders An instance of RHTTPHeaders from the current

        *        transaction.

        * @param aRequest Reference to the active ResourceRequest object submitted by WebCore

        */

        void SetConnectionHeaderL(RHTTPHeaders& aHeaders, const WebCore::ResourceRequest& aRequest);

    private:

        /**

        * C++ constructor.

        */

        HttpRequestHeaderManager(RHTTPSession& aSession);

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

        /**

        * Read browser supported mime type from central repository

        * @since 5.0

        */

        void ReadCenRepMimeTypesL(CRepository& aRepository);

        /**

        * Return Accept-Charset header string based on current

        * selections for desired page charset

        * @since 5.0

        */

        HBufC8* AcceptCharsetStringL();

        /**

        * Return string containing full list of accept MIME types

        * for top-level loads

        * @since 5.0

        */

        HBufC8* TopLevelAcceptStringL(const WebCore::ResourceRequest& Request);

        /**

        * Compose Multiple Languages String

        * @since 5.0

        */

		void ComposeMultipleLanguagesStringL(TLanguage aUserLanguge);

		/**

        * Add XMLHttpHeaders set through setRequestHeader.

        * @since 5.0

        */

		void AddXMLHttpHeadersL(RHTTPHeaders& aHeaders, const WebCore::ResourceRequest& aRequest );

    private:     // Data

        HttpSessionManager* m_HttpSessionMgr;   // not owned

        //

        RHTTPSession m_Session;

        //

		RStringPool m_StringPool;

		//

		HBufC8* m_AcceptMimeTypesCenRep;        // owned

        //

        HBufC8* m_AcceptHdrMimesTopLevel;       // owned

        //

        TUint m_UserCharset;

        //

        HBufC8* m_CharsetBuf;                   // owned

        //

        HBufC8* m_AcceptLangStr;                // owned

        //

		TLanguage m_UserSelectedLang;

        //

		HBufC8* m_InstalledLangBuf;             // owned

    };

#endif      // HTTPREQUESTHEADERMANAGER_H

// End of File