/*

* ============================================================================

*  Name     : wapisecuritysettingsimpl.h 

*  Part of  : WAPI Security Settings UI

*

*  Description:

*      Declaration of class CWAPISecuritySettingsImpl.

*      

*  Version: %version:  11.1.1 %

*

*  Copyright (C) 2008 Nokia Corporation.

*  This material, including documentation and any related 

*  computer programs, is protected by copyright controlled by 

*  Nokia Corporation. All rights are reserved. Copying, 

*  including reproducing, storing,  adapting or translating, any 

*  or all of this material requires the prior written consent of 

*  Nokia Corporation. This material also contains confidential 

*  information which may not be disclosed to others without the 

*  prior written consent of Nokia Corporation.

*

* ============================================================================

*/

#ifndef WAPISECURITYSETTINGSIMPL_H

#define WAPISECURITYSETTINGSIMPL_H

// INCLUDES

#include <e32base.h>

#include <cmmanagerext.h>

#include <wapisecuritysettingsui.h>

#include "wapisecuritysettingsdefs.h"

#include <WapiCertificates.h>

#include <metadatabase.h>

#include <commsdattypesv1_1.h>

// FORWARD DECLARATIONS

// CLASS DECLARATION

/**

* WAPI Security Settings.

* Implementation behind proxy class CWAPISecuritySettings.

*/

NONSHARABLE_CLASS( CWAPISecuritySettingsImpl ) : public CBase

    {

    public:     // Constructors and destructor

        /**

        * Two-phased constructor. Leaves on failure.

        * @return The constructed CWAPISecuritySettings object.

        */

        static CWAPISecuritySettingsImpl* NewL();

        /**

        * Destructor.

        */

        virtual ~CWAPISecuritySettingsImpl();

    protected:  // Constructors

        /**

        * Constructor.

        * @param aEikEnv Eikon environment.

        */

        CWAPISecuritySettingsImpl();

        /**

        * Second-phase constructor.

        */

        void ConstructL();

    public:     // New methods

        /**

        * Load from database.

        * @param aIapRecordId Iap record

        * @param aSession Commsdat session

        */

        void LoadL( TUint32 aIapRecordId, CommsDat::CMDBSession& aSession );

        /**

        * Save to database.

        * @param aIapRecordId Iap record

        * @param aSession Commsdat session

        */

        void SaveL( TUint32 aIapRecordId, CommsDat::CMDBSession& aSession ) const;

        /**

        * Resets certificate store from C drive

        */

        void ResetCertificateStoreL();

        /**

         * Load certificates. This was implemented for performance issues.

         */

        void LoadCertificatesL();

        /**

        * Delete AP related data from certificate database tables

        *

        * @param aId        Service table id

        */

        void DeleteAPSpecificDataL( const TInt aId );

        /**

         * Fetches table index by certificate label name

         * @param aCertificates     Pointer to certificate array

         * @param aCert             Certificate label

         * @return  Index to corresponding certificate label

         */

         TInt GetIndexByCertLabel( 

                             RArray<TBuf<KMaxLabelLength> >* aCertificates, 

                             const TDesC& aCert);

         /**

         * Read the value of the current user certificate label

         * @param aUserCertInUse  Fetched certificate label

         */

        inline void GetUserCertInUse( TInt& aUserCertInUse );

        /**

         * Read the value of the current CA certificate label

         * @param aCACertInUse  Fetched certificate label

         */

        inline void GetCACertInUse( TInt& aCACertInUse );

        /**

         * Sets the value of the current user certificate in use

         * @param aSelectedCert  The new value for user certificate

         */

        inline void SetUserCertInUse( const TInt aSelectedCert );

        /**

         * Sets the value of the current CA certificate in use

         * @param aSelectedCert  The new value for CA certificate

         */      

        inline void SetCACertInUse( const TInt aSelectedCert );

        /**

         * Fetches pointers to RARRAYS where user and CA certificates are

         * stored.

         * @param aUserCertificates Pointer reference to user certificates

         * @param aCACertificates Pointer reference to CA certificates

         */   

        inline void GetCertificateLabels ( 

                        RArray<TBuf<KMaxLabelLength> >*& aUserCertificates, 

                        RArray<TBuf<KMaxLabelLength> >*& aCACertificates );

        /**

         * Sets preshared key format, key, and wapi to PSK mode.

         */

        void SetPreSharedKeyL( const CWAPISecuritySettings::TWapiKeyFormat aKeyFormat, const TDesC& aPreSharedKey );

        /**

         * Read the value of the current authentication

         */

        TWapiAuth GetAuthentication( );

        /**

         * Sets the value of authentication  in use

         * @param aWapiAuth  Authentication

         */

        void SetAuthentication( TWapiAuth aWapiAuth );

        /**

         * Read the value of current key format

         */

        CWAPISecuritySettings::TWapiKeyFormat GetKeyFormat();

        /**

         * Sets the value of key format

         * @param aWapiKeyFormat Key format

         */

        void SetKeyFormat( CWAPISecuritySettings::TWapiKeyFormat aWapiKeyFormat ); 

        /**

         * Returns true if psk key is set

         */

        TBool hasWapiPSKKey();

        /**

         * Set the value of pre-shared wapi key

         * @param aWapiPSKKey Pre-shared key 

         */

        TInt SetWapiPSKKeyL( const TDesC& aWapiPSKKey );

        /**

         * Checks if current settings are valid.

         */

        TBool IsValid();

    private:

        /**

        * Checks whether the given string is a valid for current format

        * @param aPsk The string to be checked

        * @return ETrue if the string is a valid PSK, EFalse otherwise.

        */

        TBool IsValidPsk( const TDesC8& aPsk );

        /**

        * Checks whether the given string is a valid for given format

        * @param aWapiKeyFormat Format (ascii/hex)

        * @param aPsk The string to be checked

        * @return ETrue if the string is a valid PSK, EFalse otherwise.

        */

        TBool IsValidPsk( const CWAPISecuritySettings::TWapiKeyFormat aWapiKeyFormat,

                const TDesC8& aPsk );

    private:    // Data 

        CWapiCertificates*                  iCertificateStore; //owned

        // Certificate label, identity and selected certificate.

        RArray<TBuf<KMaxLabelLength> >*     iUserCertificates; //owned

        RArray<TBuf8<KMaxIdentityLength> >*  iUserCertificateData; //owned

        TInt                                iUserCertInUse; // Index of certificate data

        RArray<TBuf<KMaxLabelLength> >*     iCACertificates; //owned

        RArray<TBuf8<KMaxIdentityLength> >*  iCACertificateData; //owned

        TInt                                iCACertInUse; // Index of certificate data

        // Stores authentication method.

        TWapiAuth                           iWapiAuth;

        // True if PSK key is set

        TBool                               iWapiPSKKeySet;

        // PSK key format

        CWAPISecuritySettings::TWapiKeyFormat iWapiKeyFormat;

        // Stores PSK key.

        TBuf8<KWapiMaxKeyLength>            iWapiPSKKey;

        // Caches wlan service id to allow later loading of certificates

        // (solves performance issue)

        TUint32                             iWlanServiceId;

        // True if certificates have been loaded.

        TBool                               iCertificatesLoaded;

    };

// Include inline functions

#include "wapisecuritysettingsimpl.inl"

#endif