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libreoffice/xmlsecurity/source/xmlsec/mscrypt/xmlencryption_mscryptimpl.cxx

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C++

/*************************************************************************
*
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*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
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*
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* it under the terms of the GNU Lesser General Public License version 3
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*
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_xmlsecurity.hxx"
#include <sal/config.h>
#include <rtl/uuid.h>
#include "xmlencryption_mscryptimpl.hxx"
#ifndef _XMLDOCUMENTWRAPPER_XMLSECIMPL_HXX_
#include "xmldocumentwrapper_xmlsecimpl.hxx"
#endif
#ifndef _XMLELEMENTWRAPPER_XMLSECIMPL_HXX_
#include "xmlelementwrapper_xmlsecimpl.hxx"
#endif
#ifndef _SECURITYENVIRONMENT_MSCRYPTIMPL_HXX_
#include "securityenvironment_mscryptimpl.hxx"
#endif
#include "errorcallback.hxx"
#include "xmlsec/xmlsec.h"
#include "xmlsec/xmltree.h"
#include "xmlsec/xmlenc.h"
#include "xmlsec/crypto.h"
#ifdef UNX
#define stricmp strcasecmp
#endif
using namespace ::com::sun::star::uno ;
using namespace ::com::sun::star::lang ;
using ::com::sun::star::lang::XMultiServiceFactory ;
using ::com::sun::star::lang::XSingleServiceFactory ;
using ::rtl::OUString ;
using ::com::sun::star::xml::wrapper::XXMLElementWrapper ;
using ::com::sun::star::xml::wrapper::XXMLDocumentWrapper ;
using ::com::sun::star::xml::crypto::XSecurityEnvironment ;
using ::com::sun::star::xml::crypto::XXMLEncryption ;
using ::com::sun::star::xml::crypto::XXMLEncryptionTemplate ;
using ::com::sun::star::xml::crypto::XXMLSecurityContext ;
using ::com::sun::star::xml::crypto::XMLEncryptionException ;
XMLEncryption_MSCryptImpl :: XMLEncryption_MSCryptImpl( const Reference< XMultiServiceFactory >& aFactory ) : m_xServiceManager( aFactory ) {
}
XMLEncryption_MSCryptImpl :: ~XMLEncryption_MSCryptImpl() {
}
/* XXMLEncryption */
Reference< XXMLEncryptionTemplate >
SAL_CALL XMLEncryption_MSCryptImpl :: encrypt(
const Reference< XXMLEncryptionTemplate >& aTemplate ,
const Reference< XSecurityEnvironment >& aEnvironment
) throw( com::sun::star::xml::crypto::XMLEncryptionException,
com::sun::star::uno::SecurityException )
{
xmlSecKeysMngrPtr pMngr = NULL ;
xmlSecEncCtxPtr pEncCtx = NULL ;
xmlNodePtr pEncryptedData = NULL ;
xmlNodePtr pContent = NULL ;
if( !aTemplate.is() )
throw RuntimeException() ;
if( !aEnvironment.is() )
throw RuntimeException() ;
//Get Keys Manager
Reference< XUnoTunnel > xSecTunnel( aEnvironment , UNO_QUERY ) ;
if( !xSecTunnel.is() ) {
throw RuntimeException() ;
}
SecurityEnvironment_MSCryptImpl* pSecEnv = ( SecurityEnvironment_MSCryptImpl* )xSecTunnel->getSomething( SecurityEnvironment_MSCryptImpl::getUnoTunnelId() ) ;
if( pSecEnv == NULL )
throw RuntimeException() ;
//Get the encryption template
Reference< XXMLElementWrapper > xTemplate = aTemplate->getTemplate() ;
if( !xTemplate.is() ) {
throw RuntimeException() ;
}
Reference< XUnoTunnel > xTplTunnel( xTemplate , UNO_QUERY ) ;
if( !xTplTunnel.is() ) {
throw RuntimeException() ;
}
XMLElementWrapper_XmlSecImpl* pTemplate = ( XMLElementWrapper_XmlSecImpl* )xTplTunnel->getSomething( XMLElementWrapper_XmlSecImpl::getUnoTunnelImplementationId() ) ;
if( pTemplate == NULL ) {
throw RuntimeException() ;
}
pEncryptedData = pTemplate->getNativeElement() ;
//Find the element to be encrypted.
//This element is wrapped in the CipherValue sub-element.
xmlNodePtr pCipherData = pEncryptedData->children;
while (pCipherData != NULL && stricmp((const char *)(pCipherData->name), "CipherData"))
{
pCipherData = pCipherData->next;
}
if( pCipherData == NULL ) {
throw XMLEncryptionException() ;
}
xmlNodePtr pCipherValue = pCipherData->children;
while (pCipherValue != NULL && stricmp((const char *)(pCipherValue->name), "CipherValue"))
{
pCipherValue = pCipherValue->next;
}
if( pCipherValue == NULL ) {
throw XMLEncryptionException() ;
}
pContent = pCipherValue->children;
if( pContent == NULL ) {
throw XMLEncryptionException() ;
}
xmlUnlinkNode(pContent);
xmlAddNextSibling(pEncryptedData, pContent);
//remember the position of the element to be signed
sal_Bool isParentRef = sal_True;
xmlNodePtr pParent = pEncryptedData->parent;
xmlNodePtr referenceNode;
if (pEncryptedData == pParent->children)
{
referenceNode = pParent;
}
else
{
referenceNode = pEncryptedData->prev;
isParentRef = sal_False;
}
setErrorRecorder( );
pMngr = pSecEnv->createKeysManager() ; //i39448
if( !pMngr ) {
throw RuntimeException() ;
}
//Create Encryption context
pEncCtx = xmlSecEncCtxCreate( pMngr ) ;
if( pEncCtx == NULL )
{
pSecEnv->destroyKeysManager( pMngr ) ; //i39448
//throw XMLEncryptionException() ;
clearErrorRecorder();
return aTemplate;
}
//Encrypt the template
if( xmlSecEncCtxXmlEncrypt( pEncCtx , pEncryptedData , pContent ) < 0 ) {
aTemplate->setStatus(::com::sun::star::xml::crypto::SecurityOperationStatus_UNKNOWN);
xmlSecEncCtxDestroy( pEncCtx ) ;
pSecEnv->destroyKeysManager( pMngr ) ; //i39448
clearErrorRecorder();
return aTemplate;
}
aTemplate->setStatus(::com::sun::star::xml::crypto::SecurityOperationStatus_OPERATION_SUCCEEDED);
xmlSecEncCtxDestroy( pEncCtx ) ;
pSecEnv->destroyKeysManager( pMngr ) ; //i39448
//get the new EncryptedData element
if (isParentRef)
{
pTemplate->setNativeElement(referenceNode->children) ;
}
else
{
pTemplate->setNativeElement(referenceNode->next);
}
clearErrorRecorder();
return aTemplate ;
}
/* XXMLEncryption */
Reference< XXMLEncryptionTemplate > SAL_CALL
XMLEncryption_MSCryptImpl :: decrypt(
const Reference< XXMLEncryptionTemplate >& aTemplate ,
const Reference< XXMLSecurityContext >& aSecurityCtx
) throw( com::sun::star::xml::crypto::XMLEncryptionException ,
com::sun::star::uno::SecurityException) {
xmlSecKeysMngrPtr pMngr = NULL ;
xmlSecEncCtxPtr pEncCtx = NULL ;
xmlNodePtr pEncryptedData = NULL ;
if( !aTemplate.is() )
throw RuntimeException() ;
if( !aSecurityCtx.is() )
throw RuntimeException() ;
//Get Keys Manager
Reference< XSecurityEnvironment > xSecEnv
= aSecurityCtx->getSecurityEnvironmentByIndex(
aSecurityCtx->getDefaultSecurityEnvironmentIndex());
Reference< XUnoTunnel > xSecTunnel( xSecEnv , UNO_QUERY ) ;
if( !xSecTunnel.is() ) {
throw RuntimeException() ;
}
SecurityEnvironment_MSCryptImpl* pSecEnv = ( SecurityEnvironment_MSCryptImpl* )xSecTunnel->getSomething( SecurityEnvironment_MSCryptImpl::getUnoTunnelId() ) ;
if( pSecEnv == NULL )
throw RuntimeException() ;
//Get the encryption template
Reference< XXMLElementWrapper > xTemplate = aTemplate->getTemplate() ;
if( !xTemplate.is() ) {
throw RuntimeException() ;
}
Reference< XUnoTunnel > xTplTunnel( xTemplate , UNO_QUERY ) ;
if( !xTplTunnel.is() ) {
throw RuntimeException() ;
}
XMLElementWrapper_XmlSecImpl* pTemplate = ( XMLElementWrapper_XmlSecImpl* )xTplTunnel->getSomething( XMLElementWrapper_XmlSecImpl::getUnoTunnelImplementationId() ) ;
if( pTemplate == NULL ) {
throw RuntimeException() ;
}
pEncryptedData = pTemplate->getNativeElement() ;
//remember the position of the element to be signed
sal_Bool isParentRef = sal_True;
xmlNodePtr pParent = pEncryptedData->parent;
xmlNodePtr referenceNode;
if (pEncryptedData == pParent->children)
{
referenceNode = pParent;
}
else
{
referenceNode = pEncryptedData->prev;
isParentRef = sal_False;
}
setErrorRecorder( );
pMngr = pSecEnv->createKeysManager() ; //i39448
if( !pMngr ) {
throw RuntimeException() ;
}
//Create Encryption context
pEncCtx = xmlSecEncCtxCreate( pMngr ) ;
if( pEncCtx == NULL )
{
pSecEnv->destroyKeysManager( pMngr ) ; //i39448
//throw XMLEncryptionException() ;
clearErrorRecorder();
return aTemplate;
}
//Decrypt the template
if( xmlSecEncCtxDecrypt( pEncCtx , pEncryptedData ) < 0 || pEncCtx->result == NULL ) {
aTemplate->setStatus(::com::sun::star::xml::crypto::SecurityOperationStatus_UNKNOWN);
xmlSecEncCtxDestroy( pEncCtx ) ;
pSecEnv->destroyKeysManager( pMngr ) ; //i39448
//throw XMLEncryptionException() ;
clearErrorRecorder();
return aTemplate;
}
aTemplate->setStatus(::com::sun::star::xml::crypto::SecurityOperationStatus_OPERATION_SUCCEEDED);
/*----------------------------------------
if( pEncCtx->resultReplaced != 0 ) {
pContent = pEncryptedData ;
Reference< XUnoTunnel > xTunnel( ret , UNO_QUERY ) ;
if( !xTunnel.is() ) {
xmlSecEncCtxDestroy( pEncCtx ) ;
throw RuntimeException() ;
}
XMLElementWrapper_XmlSecImpl* pNode = ( XMLElementWrapper_XmlSecImpl* )xTunnel->getSomething( XMLElementWrapper_XmlSecImpl::getUnoTunnelImplementationId() ) ;
if( pNode == NULL ) {
xmlSecEncCtxDestroy( pEncCtx ) ;
throw RuntimeException() ;
}
pNode->setNativeElement( pContent ) ;
} else {
xmlSecEncCtxDestroy( pEncCtx ) ;
throw RuntimeException() ;
}
----------------------------------------*/
//Destroy the encryption context
xmlSecEncCtxDestroy( pEncCtx ) ;
pSecEnv->destroyKeysManager( pMngr ) ; //i39448
//get the decrypted element
XMLElementWrapper_XmlSecImpl * ret = new XMLElementWrapper_XmlSecImpl(isParentRef?
(referenceNode->children):(referenceNode->next));
//return ret;
aTemplate->setTemplate(ret);
clearErrorRecorder();
return aTemplate;
}
/* XInitialization */
void SAL_CALL XMLEncryption_MSCryptImpl :: initialize( const Sequence< Any >& /*aArguments*/ ) throw( Exception, RuntimeException ) {
// TBD
} ;
/* XServiceInfo */
OUString SAL_CALL XMLEncryption_MSCryptImpl :: getImplementationName() throw( RuntimeException ) {
return impl_getImplementationName() ;
}
/* XServiceInfo */
sal_Bool SAL_CALL XMLEncryption_MSCryptImpl :: supportsService( const OUString& serviceName) throw( RuntimeException ) {
Sequence< OUString > seqServiceNames = getSupportedServiceNames() ;
const OUString* pArray = seqServiceNames.getConstArray() ;
for( sal_Int32 i = 0 ; i < seqServiceNames.getLength() ; i ++ ) {
if( *( pArray + i ) == serviceName )
return sal_True ;
}
return sal_False ;
}
/* XServiceInfo */
Sequence< OUString > SAL_CALL XMLEncryption_MSCryptImpl :: getSupportedServiceNames() throw( RuntimeException ) {
return impl_getSupportedServiceNames() ;
}
//Helper for XServiceInfo
Sequence< OUString > XMLEncryption_MSCryptImpl :: impl_getSupportedServiceNames() {
::osl::Guard< ::osl::Mutex > aGuard( ::osl::Mutex::getGlobalMutex() ) ;
Sequence< OUString > seqServiceNames( 1 ) ;
seqServiceNames.getArray()[0] = OUString::createFromAscii( "com.sun.star.xml.crypto.XMLEncryption" ) ;
return seqServiceNames ;
}
OUString XMLEncryption_MSCryptImpl :: impl_getImplementationName() throw( RuntimeException ) {
return OUString::createFromAscii( "com.sun.star.xml.security.bridge.xmlsec.XMLEncryption_MSCryptImpl" ) ;
}
//Helper for registry
Reference< XInterface > SAL_CALL XMLEncryption_MSCryptImpl :: impl_createInstance( const Reference< XMultiServiceFactory >& aServiceManager ) throw( RuntimeException ) {
return Reference< XInterface >( *new XMLEncryption_MSCryptImpl( aServiceManager ) ) ;
}
Reference< XSingleServiceFactory > XMLEncryption_MSCryptImpl :: impl_createFactory( const Reference< XMultiServiceFactory >& aServiceManager ) {
//Reference< XSingleServiceFactory > xFactory ;
//xFactory = ::cppu::createSingleFactory( aServiceManager , impl_getImplementationName , impl_createInstance , impl_getSupportedServiceNames ) ;
//return xFactory ;
return ::cppu::createSingleFactory( aServiceManager , impl_getImplementationName() , impl_createInstance , impl_getSupportedServiceNames() ) ;
}