/*

* Copyright (c) 2003-2007 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:   Header of class used to parse and validate a certificate or PKCS#12 PFX.

*

*/

#ifndef CERTPARSER_H

#define CERTPARSER_H

//  INCLUDES

#include <e32base.h>

#include <mpkcs12.h>

// CONSTANTS

const TInt KHashLength( 20 );

// CertSaver panic category

_LIT( KCertSaverPanic, "Certificate saver" );

// Panic reasons

const TInt KPanicNullPointer( 0 );

const TInt KErrWrongCryptoLib( 1 );

const TInt KErrExitApp( -333333 );

// FORWARD DECLARATIONS

class CCertificate;

class CX509Certificate;

class CX500DistinguishedName;

class CPKCS12;

class RFs;

class CEikonEnv;

// CLASS DECLARATION

/**

*  CCertParser - X.509 certificate and PKCS#12 PFX parsing class.

*/

class CCertParser :public CBase

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CCertParser* NewL();

        /**

        * Destructor.

        */

        virtual ~CCertParser();

    public: // New functions

        enum TCertType

            {

            ETypeX509,

            ETypeURL,

            ETypeX509CA,

            ETypeX509Peer,

            ETypePKCS12,

            ETypeCorrupt

            };

        /**

        * Sets parsers state according to aBuffer. If certificate or PKCS#12

        * is corrupted, any of the query functions can't be called.

        * @param aBuffer, buffer containing the certificate

        * @return Type of certificate, can also be corrupted.

        */

        void SetContentL( RFile& aFile );

        /**

        * Returns the type of the certificate.

        * @return TCertType, type of certificate.

        */

        TCertType CertType() const;

        /**

        * Returns the content of the certificate.

        * Returned data is valid so long as state of this object

        * is not modified.

        * @return TPtrC8, the certificate

        */

        const TPtrC8 CertificateBuf() const;

        /**

        * Returns the X.509 certificate object.

        * Returned data is valid so long as state of this object

        * is not modified.

        * @return TPtrC8, the certificate

        */

        const CX509Certificate& Certificate() const;

        /**

        * Returns the private key of the PKCS#12 PDU.

        * Returned data is valid so long as state of this object

        * is not modified.

        * @return TPtrC8, the certificate

        */

        const CArrayPtr<HBufC8>& Keys() const;

        /**

        * Returns the CA certificates from the PKCS#12 PDU.

        * Returned data is valid so long as state of this object

        * is not modified.

        * @return TPtrC8, the certificate

        */

        const CArrayPtr<CX509Certificate>& CACertificates() const;

        /**

        * Returns the user certificates from the PKCS#12 PDU.

        * Returned data is valid so long as state of this object

        * is not modified.

        * @return TPtrC8, the certificate

        */

        const CArrayPtr<CX509Certificate>& UserCertificates() const;

    public: // Functions from base classes

    protected:  // New functions

    protected:  // Functions from base classes

    private:

        /**

        * C++ default constructor.

        */

        CCertParser();

        /**

        * By default EPOC constructor is private.

        */

        void ConstructL();

        TInt CheckIfX509CertificateL( const TDesC8& aCert );

        void CreatePKCS12L();

        TBool CheckIfPKCS12L( const TDesC8& aPKCS12, const TDesC& aFileName );

        TInt GetPasswordL( TDes& aPassword, const TDesC& aFileName );

        void ShowErrorNoteL( TInt aResourceID );

    public:     // Data

    protected:  // Data

    private:    // Data

        TCertType         iCertType;    // The type of the response

        CX509Certificate* iCert;

        MPKCS12*          iPKCS12;

        RLibrary          iLibrary;

        CEikonEnv*        iEikEnv;

    public:     // Friend classes

    protected:  // Friend classes

    private:    // Friend classes

    };

#endif      // CERTPARSER_H

// End of File