374 lines
12 KiB
C++
374 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <sal/config.h>
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#include <rtl/uuid.h>
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#include "xmlencryption_nssimpl.hxx"
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#include "xmldocumentwrapper_xmlsecimpl.hxx"
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#include "xmlelementwrapper_xmlsecimpl.hxx"
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#include "securityenvironment_nssimpl.hxx"
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#include "errorcallback.hxx"
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#include <sal/types.h>
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//For reasons that escape me, this is what xmlsec does when size_t is not 4
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#if SAL_TYPES_SIZEOFPOINTER != 4
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# define XMLSEC_NO_SIZE_T
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#endif
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#include "xmlsec/xmlsec.h"
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#include "xmlsec/xmltree.h"
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#include "xmlsec/xmlenc.h"
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#include "xmlsec/crypto.h"
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#ifdef UNX
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#define stricmp strcasecmp
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#endif
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using namespace ::com::sun::star::uno ;
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using namespace ::com::sun::star::lang ;
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using ::com::sun::star::lang::XMultiServiceFactory ;
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using ::com::sun::star::lang::XSingleServiceFactory ;
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using ::rtl::OUString ;
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using ::com::sun::star::xml::wrapper::XXMLElementWrapper ;
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using ::com::sun::star::xml::wrapper::XXMLDocumentWrapper ;
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using ::com::sun::star::xml::crypto::XSecurityEnvironment ;
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using ::com::sun::star::xml::crypto::XXMLEncryption ;
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using ::com::sun::star::xml::crypto::XXMLEncryptionTemplate ;
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using ::com::sun::star::xml::crypto::XXMLSecurityContext ;
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using ::com::sun::star::xml::crypto::XSecurityEnvironment ;
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using ::com::sun::star::xml::crypto::XMLEncryptionException ;
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XMLEncryption_NssImpl :: XMLEncryption_NssImpl( const Reference< XMultiServiceFactory >& aFactory ) : m_xServiceManager( aFactory ) {
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}
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XMLEncryption_NssImpl :: ~XMLEncryption_NssImpl() {
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}
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/* XXMLEncryption */
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Reference< XXMLEncryptionTemplate >
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SAL_CALL XMLEncryption_NssImpl :: encrypt(
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const Reference< XXMLEncryptionTemplate >& aTemplate ,
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const Reference< XSecurityEnvironment >& aEnvironment
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) throw( com::sun::star::xml::crypto::XMLEncryptionException,
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com::sun::star::uno::SecurityException )
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{
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xmlSecKeysMngrPtr pMngr = NULL ;
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xmlSecEncCtxPtr pEncCtx = NULL ;
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xmlNodePtr pEncryptedData = NULL ;
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xmlNodePtr pContent = NULL ;
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if( !aTemplate.is() )
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throw RuntimeException() ;
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if( !aEnvironment.is() )
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throw RuntimeException() ;
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//Get Keys Manager
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Reference< XUnoTunnel > xSecTunnel( aEnvironment , UNO_QUERY ) ;
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if( !xSecTunnel.is() ) {
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throw RuntimeException() ;
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}
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SecurityEnvironment_NssImpl* pSecEnv =
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reinterpret_cast<SecurityEnvironment_NssImpl*>(
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sal::static_int_cast<sal_uIntPtr>(xSecTunnel->getSomething( SecurityEnvironment_NssImpl::getUnoTunnelId() ))) ;
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if( pSecEnv == NULL )
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throw RuntimeException() ;
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//Get the encryption template
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Reference< XXMLElementWrapper > xTemplate = aTemplate->getTemplate() ;
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if( !xTemplate.is() ) {
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throw RuntimeException() ;
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}
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Reference< XUnoTunnel > xTplTunnel( xTemplate , UNO_QUERY ) ;
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if( !xTplTunnel.is() ) {
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throw RuntimeException() ;
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}
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XMLElementWrapper_XmlSecImpl* pTemplate =
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reinterpret_cast<XMLElementWrapper_XmlSecImpl*>(
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sal::static_int_cast<sal_uIntPtr>(
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xTplTunnel->getSomething( XMLElementWrapper_XmlSecImpl::getUnoTunnelImplementationId() )));
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if( pTemplate == NULL ) {
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throw RuntimeException() ;
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}
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// Get the element to be encrypted
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Reference< XXMLElementWrapper > xTarget = aTemplate->getTarget() ;
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if( !xTarget.is() ) {
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throw XMLEncryptionException() ;
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}
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Reference< XUnoTunnel > xTgtTunnel( xTarget , UNO_QUERY ) ;
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if( !xTgtTunnel.is() ) {
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throw XMLEncryptionException() ;
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}
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XMLElementWrapper_XmlSecImpl* pTarget =
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reinterpret_cast<XMLElementWrapper_XmlSecImpl*>(
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sal::static_int_cast<sal_uIntPtr>(
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xTgtTunnel->getSomething( XMLElementWrapper_XmlSecImpl::getUnoTunnelImplementationId() )));
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if( pTarget == NULL ) {
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throw RuntimeException() ;
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}
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pContent = pTarget->getNativeElement() ;
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if( pContent == NULL ) {
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throw XMLEncryptionException() ;
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}
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//remember the position of the element to be signed
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sal_Bool isParentRef = sal_True;
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pEncryptedData = pTemplate->getNativeElement();
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xmlNodePtr pParent = pEncryptedData->parent;
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xmlNodePtr referenceNode;
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if (pEncryptedData == pParent->children)
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{
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referenceNode = pParent;
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}
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else
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{
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referenceNode = pEncryptedData->prev;
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isParentRef = sal_False;
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}
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setErrorRecorder( );
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pMngr = pSecEnv->createKeysManager() ; //i39448
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if( !pMngr ) {
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throw RuntimeException() ;
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}
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//Create Encryption context
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pEncCtx = xmlSecEncCtxCreate( pMngr ) ;
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if( pEncCtx == NULL )
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{
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pSecEnv->destroyKeysManager( pMngr ) ; //i39448
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//throw XMLEncryptionException() ;
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clearErrorRecorder();
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return aTemplate;
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}
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//Find the element to be encrypted.
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//Encrypt the template
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if( xmlSecEncCtxXmlEncrypt( pEncCtx , pEncryptedData , pContent ) < 0 )
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{
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xmlSecEncCtxDestroy( pEncCtx ) ;
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pSecEnv->destroyKeysManager( pMngr ) ; //i39448
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//throw XMLEncryptionException() ;
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clearErrorRecorder();
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return aTemplate;
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}
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xmlSecEncCtxDestroy( pEncCtx ) ;
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pSecEnv->destroyKeysManager( pMngr ) ; //i39448
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//get the new EncryptedData element
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if (isParentRef)
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{
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pTemplate->setNativeElement(referenceNode->children) ;
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}
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else
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{
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pTemplate->setNativeElement(referenceNode->next);
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}
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return aTemplate ;
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}
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/* XXMLEncryption */
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Reference< XXMLEncryptionTemplate >
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SAL_CALL XMLEncryption_NssImpl :: decrypt(
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const Reference< XXMLEncryptionTemplate >& aTemplate ,
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const Reference< XXMLSecurityContext >& aSecurityCtx
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) throw( com::sun::star::xml::crypto::XMLEncryptionException ,
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com::sun::star::uno::SecurityException) {
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xmlSecKeysMngrPtr pMngr = NULL ;
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xmlSecEncCtxPtr pEncCtx = NULL ;
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xmlNodePtr pEncryptedData = NULL ;
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if( !aTemplate.is() )
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throw RuntimeException() ;
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if( !aSecurityCtx.is() )
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throw RuntimeException() ;
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//Get the encryption template
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Reference< XXMLElementWrapper > xTemplate = aTemplate->getTemplate() ;
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if( !xTemplate.is() ) {
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throw RuntimeException() ;
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}
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Reference< XUnoTunnel > xTplTunnel( xTemplate , UNO_QUERY ) ;
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if( !xTplTunnel.is() ) {
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throw RuntimeException() ;
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}
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XMLElementWrapper_XmlSecImpl* pTemplate =
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reinterpret_cast<XMLElementWrapper_XmlSecImpl*>(
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sal::static_int_cast<sal_uIntPtr>(
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xTplTunnel->getSomething( XMLElementWrapper_XmlSecImpl::getUnoTunnelImplementationId() )));
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if( pTemplate == NULL ) {
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throw RuntimeException() ;
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}
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pEncryptedData = pTemplate->getNativeElement() ;
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//remember the position of the element to be signed
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sal_Bool isParentRef = sal_True;
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xmlNodePtr pParent = pEncryptedData->parent;
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xmlNodePtr referenceNode;
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if (pEncryptedData == pParent->children)
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{
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referenceNode = pParent;
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}
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else
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{
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referenceNode = pEncryptedData->prev;
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isParentRef = sal_False;
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}
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setErrorRecorder( );
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sal_Int32 nSecurityEnvironment = aSecurityCtx->getSecurityEnvironmentNumber();
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sal_Int32 i;
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for (i=0; i<nSecurityEnvironment; ++i)
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{
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Reference< XSecurityEnvironment > aEnvironment = aSecurityCtx->getSecurityEnvironmentByIndex(i);
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//Get Keys Manager
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Reference< XUnoTunnel > xSecTunnel( aEnvironment , UNO_QUERY ) ;
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if( !aEnvironment.is() ) {
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throw RuntimeException() ;
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}
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SecurityEnvironment_NssImpl* pSecEnv =
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reinterpret_cast<SecurityEnvironment_NssImpl*>(
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sal::static_int_cast<sal_uIntPtr>(
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xSecTunnel->getSomething( SecurityEnvironment_NssImpl::getUnoTunnelId() )));
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if( pSecEnv == NULL )
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throw RuntimeException() ;
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pMngr = pSecEnv->createKeysManager() ; //i39448
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if( !pMngr ) {
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throw RuntimeException() ;
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}
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//Create Encryption context
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pEncCtx = xmlSecEncCtxCreate( pMngr ) ;
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if( pEncCtx == NULL )
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{
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pSecEnv->destroyKeysManager( pMngr ) ; //i39448
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//throw XMLEncryptionException() ;
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clearErrorRecorder();
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return aTemplate;
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}
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//Decrypt the template
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if(!( xmlSecEncCtxDecrypt( pEncCtx , pEncryptedData ) < 0 || pEncCtx->result == NULL ))
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{
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//The decryption succeeds
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//Destroy the encryption context
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xmlSecEncCtxDestroy( pEncCtx ) ;
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pSecEnv->destroyKeysManager( pMngr ) ; //i39448
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//get the decrypted element
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XMLElementWrapper_XmlSecImpl * ret = new XMLElementWrapper_XmlSecImpl(isParentRef?
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(referenceNode->children):(referenceNode->next));
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//return ret;
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aTemplate->setTemplate(ret);
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break;
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}
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else
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{
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//The decryption fails, continue with the next security environment
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xmlSecEncCtxDestroy( pEncCtx ) ;
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pSecEnv->destroyKeysManager( pMngr ) ; //i39448
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}
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}
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clearErrorRecorder();
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return aTemplate;
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}
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/* XInitialization */
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void SAL_CALL XMLEncryption_NssImpl :: initialize( const Sequence< Any >& /*aArguments*/ ) throw( Exception, RuntimeException ) {
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// TBD
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} ;
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/* XServiceInfo */
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OUString SAL_CALL XMLEncryption_NssImpl :: getImplementationName() throw( RuntimeException ) {
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return impl_getImplementationName() ;
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}
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/* XServiceInfo */
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sal_Bool SAL_CALL XMLEncryption_NssImpl :: supportsService( const OUString& serviceName) throw( RuntimeException ) {
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Sequence< OUString > seqServiceNames = getSupportedServiceNames() ;
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const OUString* pArray = seqServiceNames.getConstArray() ;
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for( sal_Int32 i = 0 ; i < seqServiceNames.getLength() ; i ++ ) {
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if( *( pArray + i ) == serviceName )
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return sal_True ;
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}
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return sal_False ;
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}
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/* XServiceInfo */
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Sequence< OUString > SAL_CALL XMLEncryption_NssImpl :: getSupportedServiceNames() throw( RuntimeException ) {
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return impl_getSupportedServiceNames() ;
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}
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//Helper for XServiceInfo
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Sequence< OUString > XMLEncryption_NssImpl :: impl_getSupportedServiceNames() {
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::osl::Guard< ::osl::Mutex > aGuard( ::osl::Mutex::getGlobalMutex() ) ;
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Sequence< OUString > seqServiceNames( 1 ) ;
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seqServiceNames.getArray()[0] = OUString("com.sun.star.xml.crypto.XMLEncryption") ;
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return seqServiceNames ;
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}
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OUString XMLEncryption_NssImpl :: impl_getImplementationName() throw( RuntimeException ) {
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return OUString("com.sun.star.xml.security.bridge.xmlsec.XMLEncryption_NssImpl") ;
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}
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//Helper for registry
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Reference< XInterface > SAL_CALL XMLEncryption_NssImpl :: impl_createInstance( const Reference< XMultiServiceFactory >& aServiceManager ) throw( RuntimeException ) {
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return Reference< XInterface >( *new XMLEncryption_NssImpl( aServiceManager ) ) ;
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}
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Reference< XSingleServiceFactory > XMLEncryption_NssImpl :: impl_createFactory( const Reference< XMultiServiceFactory >& aServiceManager ) {
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//Reference< XSingleServiceFactory > xFactory ;
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//xFactory = ::cppu::createSingleFactory( aServiceManager , impl_getImplementationName , impl_createInstance , impl_getSupportedServiceNames ) ;
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//return xFactory ;
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return ::cppu::createSingleFactory( aServiceManager , impl_getImplementationName() , impl_createInstance , impl_getSupportedServiceNames() ) ;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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