/*

* Copyright (c) 2004-2009 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: 

* Implements CKeyStoreConduit

*

*/

/**

 @file 

 @internalTechnology

*/

#ifndef __CKEYSTORECONDUIT_H__

#define __CKEYSTORECONDUIT_H__

#include "fsserver.h"

#include <bigint.h>

class CDSASignature;

class CRSASignature;

class CFSKeyStoreServer;

class CKeyStoreSession;

class CRSARepudiableSigner;

class CDSARepudiableSigner;

class CFSRSADecryptor;

class CDHParams;

class COpenedKey;

class CKeyInfo;

class CPBEncryptParms;

class CDHPublicKey;

/**

 * The key store server object (CFSKeyStoreServer) owns one instance of this

 * object, which it calls for every client request.  This object unmarshalls the

 * client data and fulfills the request by calling back to the server object.

 * Any return information is then marshalled back to the client.

 */

class CKeyStoreConduit : public CActive

	{

 public:

	static CKeyStoreConduit* NewL(CFSKeyStoreServer& aServer);

	virtual ~CKeyStoreConduit();

 public:

	void ServiceRequestL(const RMessage2& aMessage, CKeyStoreSession& aSession);

 protected:	//	From CActive

	virtual void DoCancel();

	virtual void RunL();

	virtual TInt RunError(TInt aError);

 private:

	CKeyStoreConduit(CFSKeyStoreServer& aServer);	

	void ConstructL();

 private:

	CKeyStoreConduit(const CKeyStoreConduit&);				//	No copying

	CKeyStoreConduit& operator=(const CKeyStoreConduit&);	//	No copying

 private:

	// For MKeyStore

	void ListL(const RMessage2& aMessage);

	void CancelList(const RMessage2& aMessage);

	void GetKeyInfoL(const RMessage2& aMessage);

	void CancelGetKeyInfo(const RMessage2& aMessage);

 private:

	// For MCTKeyStoreManager

	void CreateKeyL(const RMessage2& aMessage);

	void CancelCreateKey(const RMessage2& aMessage);

	void ImportKeyL(const RMessage2& aMessage);

	void CancelImportKey(const RMessage2& aMessage);

	void ExportKeyL(const RMessage2& aMessage); 

	void CancelExportKey(const RMessage2& aMessage);

	void ExportPublicL(const RMessage2& aMessage); 

	void CancelExportPublic(const RMessage2& aMessage);

	void CancelExportEncryptedKey(const RMessage2& aMessage);

	void DeleteKeyL(const RMessage2& aMessage);

	void SetUsePolicyL(const RMessage2& aMessage);

	void SetManagementPolicyL(const RMessage2& aMessage);

	void SetPassphraseTimeoutL(const RMessage2& aMessage);

	void RelockL(const RMessage2& aMessage);	

	void OpenKeyL(const RMessage2& aMessage, CKeyStoreSession& aSession, TUid aType);

	void CloseObjectL(const RMessage2& aMessage, CKeyStoreSession& aSession);

 private:

	// For MCTAuthenticationObject

	void ChangePassphrase(const RMessage2& aMessage);

	void CancelChangePassphrase(const RMessage2& aMessage);

	void AuthOpen(const RMessage2& aMessage);

	void CancelAuthOpen(const RMessage2& aMessage);

	void AuthClose(const RMessage2& aMessage);

	void GetTimeRemaining(const RMessage2& aMessage);

	void SetTimeout(const RMessage2& aMessage);

	void GetTimeout(const RMessage2& aMessage);

	void Relock(const RMessage2& aMessage);

 private:

	void GetKeyLengthL(const RMessage2& aMessage); 

	TUid GetClientUidL(const RMessage2& aMessage) const;

	void OpenKeyGetInfoL(const RMessage2& aMessage);

	void RepudiableDSASignL(const RMessage2& aMessage, CKeyStoreSession& aSession);

	void CancelDSASign(const RMessage2& aMessage, CKeyStoreSession& aSession);

	void RepudiableRSASignL(const RMessage2& aMessage, CKeyStoreSession& aSession);

	void CancelRSASign(const RMessage2& aMessage, CKeyStoreSession& aSession);

	void DecryptL(const RMessage2& aMessage, CKeyStoreSession& aSession);

	void CancelDecrypt(const RMessage2& aMessage, CKeyStoreSession& aSession);

	void DHPublicKeyL(const RMessage2& aMessage, CKeyStoreSession& aSession);

	void DoDHPublicKeyL(const RMessage2& aMessage, CKeyStoreSession& aSession);

	void FinishDHPublicKeyL();

	void DHAgreeL(const RMessage2& aMessage, CKeyStoreSession& aSession);

	void DoDHAgreeL(const RMessage2& aMessage, CKeyStoreSession& aSession);

	void FinishDHAgreeL();

	void CancelDH(const RMessage2& aMessage, CKeyStoreSession& aSession);

	COpenedKey* ProcessL(const RMessage2& aMessage, CKeyStoreSession& aSession,

						 const TUid& aCKeyInfoID, const TFSTokenMessages& aState, TPtr8& aPtr);

	void FinishOpenL(const RMessage2& aMessage, CKeyStoreSession& aSession, COpenedKey& aOpenedKey);

	void Cleanup();

 private:

	/** Encapsulate data about the current request. */

	class TAsyncRequest

		{

	public:

		void Set(TFSTokenMessages aRequest, const RMessage2& aMessage);

		void Complete(TInt aResult);

		void Cancel();

	public:

		inline TFSTokenMessages OutstandingRequest() { return iRequest; }

		inline const RMessage2& Message() { return iMessage ;}

	public:

		TAsyncRequest(TRequestStatus& aStatus);

		~TAsyncRequest();

	private:

		TFSTokenMessages iRequest;

		RMessage2 iMessage;

		TRequestStatus& iOwnerStatus;

		}; 

 private:

	CFSKeyStoreServer& iServer;				///< The server object used to execute client requests

	TAsyncRequest iCurrentRequest;			///< The client request we are currently servicing

	// unionize where possible

	HBufC8* iImportKey;						///< Buffer for key imported key data 

	CKeyInfo* iKeyInfo;						///< Key info, used by create, import and export

	HBufC8* iText;							///< Stores input data for sign and decrypt operations

	HBufC8* iExportBuf;						///< Holds the exported key data

	CPBEncryptParms* iPbeParams;            ///< Parameters for encrypted key export

	COpenedKey* iOpenedKey;					///< The key object for crypto operations

	CDSASignature* iDSASignature;			///< Signature to return for DSA sign operation

	CRSASignature* iRSASignature;			///< Signature to return for RSA sign operation

	CDHParams* iDHParams;					///< DH parameters for DU public key operation

	RInteger iDHPublicKeyOut;				///< DH public key to return to client

	CDHPublicKey* iDHPublicKey;				///< DH public key and params object for agree operation 

	HBufC8* iDHAgreedKeyOut;				///< Agreed key to return to client

	HBufC8* iPlaintext;						///< Buffer to hold decrypted data

	};

#endif	//	__CKEYSTORECONDUIT_H__