secsrv_plat/x509certnameparser_api/inc/x509CertNameParser.h
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     1 /*
       
     2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies). 
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  Extracts relevant certificate information to be shown to user.
       
    15 *
       
    16 */
       
    17 
       
    18 																				
       
    19 
       
    20 #ifndef X509CERTNAMEPARSER_H
       
    21 #define X509CERTNAMEPARSER_H
       
    22 
       
    23 //  INCLUDES
       
    24 #include <e32std.h> 
       
    25 #include <x509gn.h> // TGNType
       
    26 //------------------------------------------------------------------------------
       
    27 // CONSTANTS
       
    28 _LIT(KX509CNPComma,", ");
       
    29 
       
    30 // FORWARD DECLARATIONS
       
    31 class CX509Certificate;  
       
    32 class CX500DistinguishedName;
       
    33 class CX509CertExtension;
       
    34 class CX509AltNameExt;
       
    35 
       
    36 
       
    37 //------------------------------------------------------------------------------
       
    38 //
       
    39 // CLASS DECLARATION
       
    40 
       
    41 /**
       
    42 *  Static class CX509CertNameParser provides functions that extract relevant
       
    43 *  information for user from x.509 certificate. CX509CertNameParser 
       
    44 *  extracts the most important name info and tries to guarantee  uniqueness 
       
    45 *  in a list of certificates. 
       
    46 *  @lib X509CertNameParser.dll
       
    47 *  @since Series60_2.0
       
    48 */
       
    49 class X509CertNameParser  
       
    50 	{
       
    51     public: // Constructors and destructor
       
    52         
       
    53 
       
    54     public: // New functions
       
    55 																				        
       
    56 	    /**
       
    57         * PrimaryAndSecondaryNameL_description. PrimaryAndSecondaryNameL 
       
    58         * member function is used to collect Primary and Secondsry Name data of 
       
    59         * certificate information. The first found non-empty naming element and 
       
    60         * not equal with label  is Primary Name.
       
    61         * The second available information element not equal with label is 
       
    62         * Secondary Name.
       
    63         * @since Series60_2.0
       
    64         * @param aCertificate Certificate where the information is extracted.
       
    65 		* @param aPrimaryName IN null pointer, OUT first found name element 
       
    66         * according to name element order or KNulDesC if Primary Name isn't 
       
    67         * found.
       
    68         * @param aSecondaryName IN null pointer, OUT second found name element 
       
    69         * according to name element order or KNullDesC if Secondary Name isn't found.
       
    70         * @param aLabel Label of the certificate. Found elements are compared to
       
    71         * label to make sure that aPrimaryName and aSecondaryName differ from 
       
    72         * label. If label doesn't exist, this can be left away.
       
    73 		* @return status, at the moment always KErrNone
       
    74         */                                                                              
       
    75         IMPORT_C static TInt PrimaryAndSecondaryNameL( 
       
    76                                 const CX509Certificate& aCertificate, 
       
    77                                 HBufC*& aPrimaryName, 
       
    78                                 HBufC*& aSecondaryName,
       
    79                                 const TDesC& aLabel =KNullDesC );
       
    80 		
       
    81 		/**
       
    82         * SubjectFullNameL_description. SubjectFullNameL member function is 
       
    83         * used to collect all relevant subject information from the subject 
       
    84         * and from the subject alternative name extension of the certificate.
       
    85         * @since Series60_2.0
       
    86         * @param aCertificate Certificate where the information is extracted.
       
    87         * @param aSubjectName IN null pointer, OUT Full subject name of the 
       
    88         * certificate or KNullDesC if nothing is found.
       
    89 		* @param aLabel Label of the certificate. Found elements are compared to
       
    90         * label to make sure that aPrimaryName and aSecondaryName differ from 
       
    91         * label. If label doesn't exist, this can be left away.
       
    92 		* @return status, at the moment always KErrNone
       
    93         */
       
    94         IMPORT_C static TInt SubjectFullNameL( 
       
    95                                 const CX509Certificate& aCertificate,
       
    96                                 HBufC*& aSubjectName,
       
    97 			                    const TDesC& aLabel = KNullDesC );
       
    98 
       
    99 		/**
       
   100         * IssuerFullNameL_description. IssuerFullNameL member function is 
       
   101         * used to collect all the relevant Issuer information from the Issuer 
       
   102         * and from the Issuer alternative name extension of the certificate.
       
   103         * @since Series60_2.0
       
   104         * @param aCertificate Certificate where the information is extracted.
       
   105         * @param aIssuerName IN null pointer, OUT Full issuer name of the 
       
   106         * certificate or KNullDesC if nothing is found..
       
   107 		* @return status, at the moment always KErrNone
       
   108         */
       
   109 		IMPORT_C static TInt IssuerFullNameL( 
       
   110                                 const CX509Certificate& aCertificate,
       
   111                                 HBufC*& aIssuerName );
       
   112 	
       
   113     public: // Functions from base classes
       
   114        
       
   115     protected:  // New functions
       
   116         
       
   117     protected:  // Functions from base classes
       
   118 
       
   119     private: //Private data types
       
   120 
       
   121 	/**
       
   122     * enum TX509CNPNameType declaration.
       
   123 	*
       
   124     */
       
   125     enum TX509CNPNameType
       
   126 		{	
       
   127         EX509CNPPrimAndSecond,
       
   128         EX509CNPFullName
       
   129 		};
       
   130 
       
   131     /**
       
   132     * enum TX509CNPNameElement declaration.
       
   133 	* This enum defines the naming element order that can be changed by 
       
   134     * chancing the order of enum's members.
       
   135     */
       
   136     enum TX509CNPNameElement
       
   137         {                           // DN = Distinguish name, Alt = Alternative name 
       
   138         EDNCommonName = 1,          // common name of the subject 
       
   139         ECritAltRFC822Name,         // rfc822Name of the critical subject alternative name
       
   140         EDNOrganizationName,        // OrganizationName of the subject
       
   141         EDNOrganizationalUnitName,  // OrganizationalUnitName of the subject
       
   142         ECritAltDNSName,            // dNSName of the critical subject alternative name
       
   143         ECritAltURI,                // URI of the critical subject alternative name
       
   144         ECritAltDirectoryName,      // directoryName of the critical subject alternative name
       
   145         ECritAltIPAddress,          // iPAddress of the critical subject alternative name                       
       
   146         EAltRFC822Name,             // rfc822Name of the subject alternative name
       
   147         EAltDNSName,                // dNSName of the subject alternative name
       
   148         EAltURI,                    // URI of the subject alternative name
       
   149         EDNCountryName,             // countryName of the subject
       
   150         EDNStateOrProvinceName,     // stateOrProvinceName of the subject
       
   151         EDNLocalityName,            // localityName of the subject
       
   152         EAltDirectoryName,          // directoryName of the subject alternative name
       
   153         EAltIPAddress               // iPAddress of the subject alternative name                       
       
   154         };  
       
   155        
       
   156     private:
       
   157 
       
   158         /**
       
   159         * C++ default constructor.
       
   160         */
       
   161         X509CertNameParser();
       
   162 
       
   163 	
       
   164     private: //New functions
       
   165         
       
   166         /**
       
   167         * GetFullNameL_description.
       
   168 		* Common function for FullName functions.
       
   169         * @since Series60_2.0
       
   170         * @param aDN Distinguished name
       
   171         * @param aExtension Pointer to Extension
       
   172         * @param aSubjectName IN null pointer, OUT Full subject name of the 
       
   173         * certificate or KNullDesC if nothing is found.
       
   174         * @return TInt type value.
       
   175         */
       
   176         static TInt GetFullNameL( 
       
   177                         const CX500DistinguishedName& aDN, 
       
   178                         const CX509CertExtension* aExtension,
       
   179                         HBufC*& aName,
       
   180                         const TDesC& aLabel = KNullDesC );
       
   181 
       
   182 
       
   183         /**
       
   184         * GetNamePartsL_description.
       
   185 		* Collects all the name parts of the certificate to array. One name element
       
   186         * is placed to one element of array.
       
   187         * @since Series60_2.0
       
   188         * @param aDN Distinguished name
       
   189         * @param aExtension Pointer to Extension
       
   190         * @param aNameArray Found name elements are appended to this array.
       
   191         * @param aNameType EX509CNPPrimAndSecond or EX509CNPFullName
       
   192         * @return TInt type value.
       
   193         */
       
   194         static TInt GetNamePartsL( 
       
   195                         const CX500DistinguishedName& aDN, 
       
   196                         const CX509CertExtension* aExtension, 
       
   197                         CDesCArray& aNameArray, 
       
   198                         TX509CNPNameType aNameType );
       
   199                                                                                                                                            
       
   200         /**
       
   201         * GetDNPartL_description.
       
   202 		* Gets one name element of the DN identified by OID.
       
   203         * @since Series60_2.0
       
   204         * @param aDN Distinguished name
       
   205         * @param aSubPartOID OID of the distinguished name subpart 
       
   206         * @param aNameArray Found name element is appended to this array.
       
   207         * @return void
       
   208         */
       
   209         static void GetDNPartL( 
       
   210                         const CX500DistinguishedName& aDN, 
       
   211                         const TDesC& aSubPartOID, 
       
   212                         CDesCArray& aNameArray );
       
   213 
       
   214         /**
       
   215         * GetDNPartAllL_description.
       
   216 		* Gets all name elements of the DN identified by one OID.
       
   217         * @since Series60_2.0
       
   218         * @param aDN Distinguished name
       
   219         * @param aSubPartOID OID of the distinguished name subpart 
       
   220         * @param aNameArray Found name elements are appended to this array.
       
   221         * @return void
       
   222         */
       
   223         static void GetDNPartAllL( 
       
   224                         const CX500DistinguishedName& aDN, 
       
   225                         const TDesC& aSubPartOID, 
       
   226                         CDesCArray& aNameArray );
       
   227 
       
   228         /**
       
   229         * GetAltNamePartL_description.
       
   230 		* Gets all elements of alternative name identified by one OID.
       
   231         * @since Series60_2.0
       
   232         * @param aAltName Alternative name extension
       
   233         * @param aSubPartType Type of the alternative name subpart
       
   234         * @param aNameArray Found name elements are appended to this array.
       
   235         * @return void
       
   236         */
       
   237         static void GetAltNamePartL( 
       
   238                         const CX509AltNameExt& aAltName, 
       
   239                         const TGNType& aSubPartType, 
       
   240                         CDesCArray& aNameArray );
       
   241 
       
   242         /**
       
   243         * HandleAltNameL_description.
       
   244         * Handles error. If error is KErrNone, KErrArgument or KErrNotSupported, it just
       
   245         * returns aError, otherwise it leaves with aError.
       
   246         * @since Series60_2.0
       
   247         * @param aError Error
       
   248         * @return TInt aError
       
   249         */    
       
   250         static TInt AddAltNameToArrayL( 
       
   251                         TInt aError, 
       
   252                         CX509DomainName* aDomainName,
       
   253                         CDesCArray& aNameArray );
       
   254 
       
   255         /**
       
   256         * CompareAndAddNameL_description.
       
   257 		* Adds proposal to array if none of the elements of array isn't equal 
       
   258         * with proposal.
       
   259         * @since Series60_2.0
       
   260         * @param aProposal 
       
   261         * @param aNameArray 
       
   262         * @return void.
       
   263         */
       
   264         static void CompareAndAddNameL( 
       
   265                         const TDesC& aProposal, 
       
   266                         CDesCArray& aNameArray );
       
   267 
       
   268         /**
       
   269         * AddToBufLC_description.
       
   270 		* Appends aName to aBuf. If aBuf isn't NULL, first aBuf is deleted and
       
   271         * memory is allocated for existing data and for aName.
       
   272         * @since Series60_2.0
       
   273         * @param aName Desciptor that is appended to aBuf
       
   274         * @param aBuf  IN Null pointer or buffer
       
   275         * @return void.
       
   276         */
       
   277         static void AddToBufLD( const TDesC& aName, HBufC*& aBuf );
       
   278 
       
   279         /**
       
   280         * HandleErrorL_description.
       
   281         * Handles error. If error is KErrNone, KErrArgument or KErrNotSupported, it just
       
   282         * returns aError, otherwise it leaves with aError.
       
   283         * @since Series60_2.0
       
   284         * @param aError Error
       
   285         * @return TInt aError
       
   286         */    
       
   287         static TInt HandleErrorL( TInt aError );
       
   288 
       
   289     };
       
   290 
       
   291 #endif      // X509CERTNAMEPARSER_H
       
   292             
       
   293 // End of File