/*

* Copyright (c) 2007-2007 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 SMARTCARDCRYPTOTOKENREADER_H

#define SMARTCARDCRYPTOTOKENREADER_H

#include "javaosheaders.h"

#include <e32base.h>

#include <f32file.h>

#include <ct.h>

#include <mctcertstore.h>

#include <mctwritablecertstore.h>

namespace java

{

namespace security

{

OS_NONSHARABLE_CLASS(SmartCardCryptoTokenReader) : public CActive

{

    enum State

    {

        EStart,

        EListTokenTypes,

        EOpenTokenType,

        EOpenToken,

        EGetTokenInterface,

        EListCertificates,

        EFilterCertificates,

        ERetrieveCertificates,

        EReleaseToken,

        EFinish

    };

public:

    static SmartCardCryptoTokenReader* NewL();

    virtual ~SmartCardCryptoTokenReader();

    void RetrieveCerts(RArray<HBufC8*>& aSmartCardCerts);

    // CActive

    virtual void RunL();

    virtual void DoCancel();

    virtual TInt RunError(TInt aError);

private:

    SmartCardCryptoTokenReader();

    void ConstructL();

    bool Initialize();

    bool OpenTokenType();

    bool OpenToken();

    bool GetTokenInterface();

    bool ListCertificates();

    bool FilterCertificates();

    bool RetrieveCertificates();

    bool ReleaseToken();

    void CancelOpenTokenType();

    void CancelOpenToken();

    void CancelGetTokenInterface();

    void CompleteRequest(TInt aCompletionCode);

    void NextState(bool aCurrentOperationSucceeded);

    void DoReleaseToken();

private:

    // file handler

    RFs iFs;

    // the state machine's state (see State for values)

    State iState;

    // smart card token attributes

    RArray<TUid> iSmartCardTokensInterfaces;

    RArray <TCTTokenTypeAttribute> iSmartCardTokensAttributes;

    // smart card token types

    RCPointerArray <CCTTokenTypeInfo> iSmartCardTokenTypes;

    // smart card tokens from the list are handled one by one

    // -> this is the index of the token type being currently handled

    int iCurrentTokenType;

    // smart card token type & info

    MCTToken* iSmartCardToken;

    CCTTokenType* iSmartCardTokenType;

    RCPointerArray<HBufC> iSmartCardTokenInfo;

    // smart card token interface

    MCTTokenInterface* iSmartCardTokenInterface;

    MCTCertStore* iSmartCardStore;

    // smart card certificate filters

    CCertAttributeFilter* iSmartCardCertsFilter;

    // smart card certificate infos

    RMPointerArray<CCTCertInfo> iSmartCardCertInfos;

    // smart card certificates contents are retrieved one by one by the state machine

    // -> this is the index of the smart card cert content being currently retrieved

    int iCurrentRetrievedSmartCardCert;

    // smart card certs

    RArray<HBufC8*>* iSmartCardCerts;

    // flag identifying if the currently retrieved cert is trusted

    TBool iCurrentSmartCardCertIsTrusted;

    // temporary buffer (and pointer to it) via which a single certificate

    // content is retrieved

    HBufC8* iTmpBuf;

    TPtr8 iTmpBufPtr;

    CActiveScheduler* iActiveScheduler;

};

} //end namespace security

} //end namespace java

#endif // SMARTCARDCRYPTOTOKENREADER_H