/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_xmlsecurity.hxx"
#include <sal/config.h>
#include <rtl/uuid.h>
#include <rtl/ustring.hxx> 
#include <com/sun/star/security/ExtAltNameType.hpp>
#include <com/sun/star/security/CertAltNameEntry.hpp>
#include <com/sun/star/beans/NamedValue.hpp>
#include <com/sun/star/uno/Reference.hxx>
#include <comphelper/sequence.hxx>


#ifndef _SANEXTENSION_MSCRYPTIMPL_HXX_
#include "sanextension_mscryptimpl.hxx"
#endif

using namespace ::com::sun::star;
using namespace ::com::sun::star::uno ;
using namespace ::com::sun::star::security ;
using ::rtl::OUString ;

using ::com::sun::star::security::XCertificateExtension ;


SanExtensionImpl :: SanExtensionImpl() :
	m_critical( sal_False )
{
}

SanExtensionImpl :: ~SanExtensionImpl() {
}


//Methods from XCertificateExtension
sal_Bool SAL_CALL SanExtensionImpl :: isCritical() throw( ::com::sun::star::uno::RuntimeException ) {
	return m_critical ;
}

::com::sun::star::uno::Sequence< sal_Int8 > SAL_CALL SanExtensionImpl :: getExtensionId() throw( ::com::sun::star::uno::RuntimeException ) {
	return m_xExtnId ;
}

::com::sun::star::uno::Sequence< sal_Int8 > SAL_CALL SanExtensionImpl :: getExtensionValue() throw( ::com::sun::star::uno::RuntimeException ) {
	return m_xExtnValue ;
}

//Methods from XSanExtension
::com::sun::star::uno::Sequence< com::sun::star::security::CertAltNameEntry > SAL_CALL SanExtensionImpl :: getAlternativeNames() throw( ::com::sun::star::uno::RuntimeException ){
    
    if (!m_Entries.hasElements())
    {   
        CERT_ALT_NAME_INFO *subjectName;
        DWORD size;
        CryptDecodeObjectEx(X509_ASN_ENCODING, X509_ALTERNATE_NAME, (unsigned char*) m_xExtnValue.getArray(), m_xExtnValue.getLength(), CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG, NULL,&subjectName, &size);

        CertAltNameEntry* arrCertAltNameEntry = new CertAltNameEntry[subjectName->cAltEntry];

        for (unsigned int i = 0; i < (unsigned int)subjectName->cAltEntry; i++){
          PCERT_ALT_NAME_ENTRY pEntry = &subjectName->rgAltEntry[i];

          switch(pEntry->dwAltNameChoice) {
            case CERT_ALT_NAME_OTHER_NAME : 
                {
                    arrCertAltNameEntry[i].Type = ExtAltNameType_OTHER_NAME;
                    PCERT_OTHER_NAME pOtherName = pEntry->pOtherName;

                    ::com::sun::star::beans::NamedValue otherNameProp;
                    otherNameProp.Name = ::rtl::OUString::createFromAscii(pOtherName->pszObjId);

                    Sequence< sal_Int8 > otherName( pOtherName->Value.cbData ) ;
		            for( unsigned int n = 0; n < (unsigned int) pOtherName->Value.cbData ; n ++ )
			            otherName[n] = *( pOtherName->Value.pbData + n ) ;
                    
                    otherNameProp.Value <<= otherName;

                    arrCertAltNameEntry[i].Value <<= otherNameProp;
                    break;
                }
            case CERT_ALT_NAME_RFC822_NAME :
                arrCertAltNameEntry[i].Type = ExtAltNameType_RFC822_NAME;
                arrCertAltNameEntry[i].Value <<= ::rtl::OUString((const sal_Unicode*)pEntry->pwszRfc822Name);
                break;
            case CERT_ALT_NAME_DNS_NAME :
                arrCertAltNameEntry[i].Type = ExtAltNameType_DNS_NAME;
                arrCertAltNameEntry[i].Value <<= ::rtl::OUString((const sal_Unicode*)pEntry->pwszDNSName);
                break;
            case CERT_ALT_NAME_DIRECTORY_NAME :
                {
                    arrCertAltNameEntry[i].Type = ExtAltNameType_DIRECTORY_NAME;
                    break;
                }
            case CERT_ALT_NAME_URL :
                arrCertAltNameEntry[i].Type = ExtAltNameType_URL;
                arrCertAltNameEntry[i].Value <<= ::rtl::OUString((const sal_Unicode*)pEntry->pwszURL);
                break;
            case CERT_ALT_NAME_IP_ADDRESS :
                {
                    arrCertAltNameEntry[i].Type = ExtAltNameType_IP_ADDRESS;
                    
                    Sequence< sal_Int8 > ipAddress( pEntry->IPAddress.cbData ) ;
		            for( unsigned int n = 0; n < pEntry->IPAddress.cbData ; n ++ )
			            ipAddress[n] = *( pEntry->IPAddress.pbData + n ) ;

                    arrCertAltNameEntry[i].Value <<= ipAddress;
                    break;
                }
            case CERT_ALT_NAME_REGISTERED_ID :
                arrCertAltNameEntry[i].Type = ExtAltNameType_REGISTERED_ID;
                arrCertAltNameEntry[i].Value <<= ::rtl::OUString::createFromAscii(pEntry->pszRegisteredID);
                break;
          }
        }
        m_Entries = ::comphelper::arrayToSequence< com::sun::star::security::CertAltNameEntry >(arrCertAltNameEntry, subjectName->cAltEntry);        

        delete [] arrCertAltNameEntry;
    }

    return m_Entries;
}

//Helper method
void SanExtensionImpl :: setCertExtn( ::com::sun::star::uno::Sequence< sal_Int8 > extnId, ::com::sun::star::uno::Sequence< sal_Int8 > extnValue, sal_Bool critical ) {
	m_critical = critical ;
	m_xExtnId = extnId ;
	m_xExtnValue = extnValue ;
}

void SanExtensionImpl :: setCertExtn( unsigned char* value, unsigned int vlen, unsigned char* id, unsigned int idlen, sal_Bool critical ) {
	unsigned int i ;
	if( value != NULL && vlen != 0 ) {
		Sequence< sal_Int8 > extnv( vlen ) ;
		for( i = 0; i < vlen ; i ++ )
			extnv[i] = *( value + i ) ;

		m_xExtnValue = extnv ;
	} else {
		m_xExtnValue = Sequence<sal_Int8>();
	}

	if( id != NULL && idlen != 0 ) {
		Sequence< sal_Int8 > extnId( idlen ) ;
		for( i = 0; i < idlen ; i ++ )
			extnId[i] = *( id + i ) ;

		m_xExtnId = extnId ;
	} else {
		m_xExtnId =  Sequence<sal_Int8>();
	}

	m_critical = critical ;
}

void SanExtensionImpl :: extractCertExt () {
}