/*

 * Copyright (c) 1997-2009 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: 

 *

 */

 #if !defined (__WTLSNAMES_H__)

 #define __WTLSNAMES_H__

 #include <e32base.h>

 #include <e32std.h>

 #include <x500dn.h>

 /**

 @file

 This file contains the definition for class CWTLSName.

 @publishedAll

 @released

 enum { null(0), text(1), binary(2), key_hash_sha(254), x509_name(255)}

 	IdentifierType;

 We only support text and x509_name as these are the only meaningful identifiers..

 x509_name is X.500 Distinguished Name, and should use our existing X.500 DN implementation.  

 struct {

 		IdentifierType identifier_type;

 		select (identifier_type) {

 			case null: struct {};

 			case text:

 				CharacterSet character_set;

 				opaque name<1.. 2^8-1>;

 			case binary: opaque identifier<1..2^8-1>;

 			case key_hash_sha: opaque key_hash[20];

 			case x509_name: opaque distinguished_name<1..2^8-1>;

 		} 

 		Identifier;

 uint16 CharacterSet;

 This maps on to one of the IANA defined character sets. There are rather a lot

 of these.  We just support the text type, with either Latin1 or UTF8 encoding.

 */

 /**

  * Enumerates the types of WTLS certificate name forms/identifiers.

  * 

  * Only text strings and X.500 Distinguished Names are currently supported.

  * 

  */

 enum 

 	{

 	/* Null */

 	EWTLSNull =			0x00,

 	/* Text string (Latin-1 or Unicode). 

 	 *

 	 * A text identifier consists of a 16-bit character set identifier; 

 	 * this represents the IANA-assigned character set number. */

 	EWTLSText =			0x01,

 	/* Binary identifier.

 	 *

 	 * Certificates of this type will be rejected.*/

 	EWTLSBinary =		0x02,

 	/* Key Hash SHA-1. 

 	 *

 	 * Certificates of this type will be rejected.*/

 	EWTLSKeyHashSha =	0xfe,

 	/* X.500 Distinguished Name. */

 	EWTLSX500DN =		0xff

 	};

 typedef TUint8 TWTLSNameType;

 typedef TInt TWTLSCharSet;

 // MIBenum constants from the IANA list of character sets.

 // See http://www.iana.org/assignments/character-sets for more info.

 /** MIBenum constant for the Latin1 IANA character set */

 const TInt KWTLSLatin1CharSet = 4;

 /** MIBenum constant for the UTF-8 IANA character set */

 const TInt KWTLSUTF8CharSet = 106;

 class CWTLSName : public CBase

 /**

  * Stores the type of a WTLS name and the underlying encoding of the type.

  *

  */

 	{

 public:

 	/**

 	 * Creates a new CWTLSName object from the specified buffer containing the binary coded representation.

 	 *

 	 * @param aBinaryData	The encoded binary representation.

 	 * @return				The new CWTLSName object.

 	 */

 	IMPORT_C static CWTLSName* NewL(const TDesC8& aBinaryData);

 	/**

 	 * Creates a new CWTLSName object from the specified buffer containing the binary coded representation,

 	 * and puts a pointer to it onto the cleanup stack.

 	 *

 	 * @param aBinaryData	The encoded binary representation.

 	 * @return				The new CWTLSName object.

 	 */

 	IMPORT_C static CWTLSName* NewLC(const TDesC8& aBinaryData);

 	/**

 	 * Creates a new CWTLSName object from the specified buffer containing the binary coded representation, 

 	 * starting at the specified offset.

 	 *

 	 * @param aBinaryData	The encoded binary representation.

 	 * @param aPos			The offset position from which to start decoding. It specifies an offset into the descriptor, 

 	 *						and is updated to the position at the end of the object.

 	 * @return				The new CWTLSName object.

 	 */

 	IMPORT_C static CWTLSName* NewL(const TDesC8& aBinaryData, TInt& aPos);

 	/**

 	 * Creates a new CWTLSName object from the specified buffer containing the binary coded representation, 

 	 * starting at the specified offset, and puts a pointer to it onto the cleanup stack.

 	 *

 	 * @param aBinaryData	The encoded binary representation.

 	 * @param aPos			The offset position from which to start decoding. It specifies an offset into the descriptor, 

 	 *						and is updated to the position at the end of the object.

 	 * @return				The new CWTLSName object.

 	 */

 	IMPORT_C static CWTLSName* NewLC(const TDesC8& aBinaryData, TInt& aPos);

 	/**

 	 * Creates a new CWTLSName object from an existing one.

 	 *

 	 * @param aName	An existing CWTLSName object.

 	 * @return		The new CWTLSName object.

 	 */

 	IMPORT_C static CWTLSName* NewL(const CWTLSName& aName);

 	/**

 	 * Creates a new CWTLSName object from an existing one, 

 	 * and puts a pointer to it onto the cleanup stack.

 	 *

 	 * @param aName	An existing CWTLSName object.

 	 * @return		The new CWTLSName object.

 	 */

 	IMPORT_C static CWTLSName* NewLC(const CWTLSName& aName);	

 	/**

 	 * Destructor.

 	 *

 	 * Frees all resources owned by the object, prior to its destruction.

 	 */

 	IMPORT_C ~CWTLSName(); 

 	/**

 	 * Performs a simple byte compare between this WTLS name and a specified WTLS name.

 	 *

 	 * Needed for the constructing/validating of certificate chains.

 	 *

 	 * @param aName	An existing CWTLSName object.

 	 * @return		ETrue, if the WTLS names match; EFalse, otherwise.

 	 */	

 	IMPORT_C TBool ExactMatchL(const CWTLSName& aName) const;

 	/** 

 	 * Gets the type of the WTLS name.

 	 *

 	 * @return	Type of WTLS name form.

 	 */	

 	IMPORT_C TWTLSNameType NameType() const;

 	/** 

 	 * Gets the encoding of the underlying type of WTLS name.

 	 *

 	 * @return	Pointer descriptor representing the encoding of the WTLS name type.

 	 */	

 	IMPORT_C TPtrC8 NameData() const;

 	/**

 	 * Gets the decoded value for the common or organisation name.

 	 *

 	 * Provides the functionality required by the CCertificate::IssuerL() and SubjectL() functions.

 	 *

 	 * @return A heap descriptor containing the decoded value of the common or organisation name.

 	 */

 	IMPORT_C HBufC* DisplayNameL() const;

 private:

 	CWTLSName();

 	void ConstructL(const TDesC8& aBinaryData, TInt& aPos);

 	void ConstructL(const CWTLSName& aName);

 	void AllocNameDataL(const TDesC8& aBinaryData, TInt& aPos);

 	void AllocTextDataL(const TDesC8& aBinaryData, TInt& aPos);

 	TWTLSNameType iNameType;

 	HBufC8* iNameData;

 	};

 class CWTLSText : public CBase

 	{

 public:

 	/**

 	 * Creates a new CWTLSText object from the specified buffer containing the binary coded representation.

 	 *

 	 * @param aBinaryData	The encoded binary representation.

 	 * @return				The new CWTLSText object.

 	 */

 	IMPORT_C static CWTLSText* NewL(const TDesC8& aBinaryData);

 	/**

 	 * Creates a new CWTLSText object from the specified buffer containing the binary coded representation,

 	 * and puts a pointer to it onto the cleanup stack.

 	 *

 	 * @param aBinaryData	The encoded binary representation.

 	 * @return				The new CWTLSText object.

 	 */

 	IMPORT_C static CWTLSText* NewLC(const TDesC8& aBinaryData);

 	/**

 	 * Creates a new CWTLSText object from the specified buffer containing the binary coded representation, 

 	 * starting at the specified offset.

 	 *

 	 * @param aBinaryData	The encoded binary representation.

 	 * @param aPos			The offset position from which to start decoding. It specifies an offset into the descriptor, 

 	 *						and is updated to the position at the end of the object.

 	 * @return				The new CWTLSText object.

 	 */

 	IMPORT_C static CWTLSText* NewL(const TDesC8& aBinaryData, TInt& aPos);

 	/**

 	 * Creates a new CWTLSText object from the specified buffer containing the binary coded representation, 

 	 * starting at the specified offset, and puts a pointer to it onto the cleanup stack.

 	 *

 	 * @param aBinaryData	The encoded binary representation.

 	 * @param aPos			The offset position from which to start decoding. It specifies an offset into the descriptor, 

 	 *						and is updated to the position at the end of the object.

 	 * @return				The new CWTLSText object.

 	 */

 	IMPORT_C static CWTLSText* NewLC(const TDesC8& aBinaryData, TInt& aPos);	

 	/**

 	 * Destructor.

 	 *

 	 * Frees all resources owned by the object, prior to its destruction.

 	 */

 	IMPORT_C ~CWTLSText(); 	

 	/**

 	 * Performs a simple byte compare between this CWTLSText object and a specified CWTLSText object.

 	 *

 	 * There is a subtle difference between this byte-match and CWTLSName::ExactMatchL().

 	 * As opposed to the latter, this function should successfully match two names that 

 	 * are the same that were encoded using different character sets.

 	 *

 	 * @param aName	An existing CWTLSText object.

 	 * @return		ETrue, if the CWTLSText objects match; EFalse, otherwise.

 	 */	

 	IMPORT_C TBool ExactMatchL(const CWTLSText& aName) const;	

 	/**

 	 * Gets the name of the CWTLSText object.

 	 *

 	 * @return A pointer to the name of the CWTLSText object. 

 	 */

 	IMPORT_C TPtrC Name() const;

 	/**

 	 * Gets the character set of the CWTLSText object.

 	 *

 	 * @return The character set

 	 */

 	IMPORT_C TWTLSCharSet CharacterSet() const;

 protected:

 	/** 

 	 * @internalAll

 	 */

 	CWTLSText();

 	/** 

 	 * @internalAll

 	 */

 	void ConstructL(const TDesC8& aBinaryData, TInt& aPos);

 	HBufC* iName;

 private:

 	TInt iCharacterSet;

 	};

 //this class implements the 'structured' variant of the text type defined in the WTLS spec, section 10.5.2:

 //<servicename>; <organization>; <country>[; <commonname>[; <extension>[; <extension>[ …. ]]]]

 _LIT(KWTLSCountryName,"C");

 _LIT(KWTLSOrganizationName,"O");

 _LIT(KWTLSServiceName,"OU");

 _LIT(KWTLSTitle,"T");

 _LIT(KWTLSCommonName,"CN");

 class TWTLSStructuredTextField 

 	{

 public:

 	/** 

      * @internalAll

      */

 	TWTLSStructuredTextField(const TDesC& aType, const TDesC& aValue);

 	/**

 	 *

 	 * @return	

 	 */

 	IMPORT_C TPtrC Type() const;

 	/**

 	 *

 	 * @return

 	 */

 	IMPORT_C TPtrC Value() const;

 private:

 	const TPtrC iType;

 	const TPtrC iValue; 

 	};

 class CWTLSStructuredText : public CWTLSText

 	{

 public:

 	/**

 	 * Creates a new CWTLSStructuredText object from the specified buffer containing the binary coded representation.

 	 *

 	 * @param aBinaryData	The encoded binary representation.

 	 * @return				The new CWTLSStructuredText object.

 	 */

 	IMPORT_C static CWTLSStructuredText* NewL(const TDesC8& aBinaryData);

 	/**

 	 * Creates a new CWTLSStructuredText object from the specified buffer containing the binary coded representation,

 	 * and puts a pointer to it onto the cleanup stack.

 	 *

 	 * @param aBinaryData	The encoded binary representation.

 	 * @return				The new CWTLSStructuredText object.

 	 */

 	IMPORT_C static CWTLSStructuredText* NewLC(const TDesC8& aBinaryData);

 	/**

 	 * Creates a new CWTLSStructuredText object from the specified buffer containing the binary coded representation, 

 	 * starting at the specified offset.

 	 *

 	 * @param aBinaryData	The encoded binary representation.

 	 * @param aPos			The offset position from which to start decoding. It specifies an offset into the descriptor, 

 	 *						and is updated to the position at the end of the object.

 	 * @return				The new CWTLSStructuredText object.

 	 */

 	IMPORT_C static CWTLSStructuredText* NewL(const TDesC8& aBinaryData, TInt& aPos);

 	/**

 	 * Creates a new CWTLSStructuredText object from the specified buffer containing the binary coded representation, 

 	 * starting at the specified offset, and puts a pointer to it onto the cleanup stack.

 	 *

 	 * @param aBinaryData	The encoded binary representation.

 	 * @param aPos			The offset position from which to start decoding. It specifies an offset into the descriptor, 

 	 *						and is updated to the position at the end of the object.

 	 * @return				The new CWTLSStructuredText object.

 	 */

 	IMPORT_C static CWTLSStructuredText* NewLC(const TDesC8& aBinaryData, TInt& aPos);

 	/**

 	 * Destructor.

 	 *

 	 * Frees all resources owned by the object, prior to its destruction.

 	 */

 	IMPORT_C ~CWTLSStructuredText(); 

 	/**

 	 * 

 	 *

 	 * @return

 	 */

 	IMPORT_C HBufC* DisplayNameL() const;

 	//accessors for defined fields

 	/**

 	 *

 	 *

 	 * @return

 	 */

 	IMPORT_C TPtrC ServiceName() const;

 	/**

 	 *

 	 *

 	 * @return

 	 */

 	IMPORT_C TPtrC Organization() const;

 	/**

 	 *

 	 *

 	 * @return

 	 */

 	IMPORT_C TPtrC Country() const;

 	/**

 	 *

 	 *

 	 * @return

 	 */

 	IMPORT_C TInt Count() const;

 	/**

 	 *

 	 *

 	 * Note 

 	 *

 	 * @param aType

 	 * @return	A pointer to a TWTLSStructuredTextField object; NULL if field not found. 

 	 *			The returned object remains the property of the structured text object

 	 *			(so don't delete it).

 	 */

 	IMPORT_C const TWTLSStructuredTextField* FieldByName(const TDesC& aType) const;

 	/**

 	 *

 	 *

 	 * @return

 	 */

 	IMPORT_C const TWTLSStructuredTextField& FieldByIndex(TInt aIndex) const;

 private:

 	CWTLSStructuredText();

 	void ConstructL(const TDesC8& aBinaryData, TInt& aPos);

 	void AddFieldValueL(const TDesC& aFieldName, TInt& aPos);

 	void AddFieldL(TInt& aPos);

 	TPtrC GetFieldL(TDesC& aString, TInt& aPos);

 	TBool GetSubFieldL(TDesC& aString, TInt& aPos);

 	CArrayFixFlat<TWTLSStructuredTextField>* iFields; 

 	};

 #endif