231 lines
6.5 KiB
C++
231 lines
6.5 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: encryptionengine.cxx,v $
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*
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* $Revision: 1.3 $
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*
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* last change: $Author: obo $ $Date: 2006-09-16 14:37:46 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_xmlsecurity.hxx"
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#include "encryptionengine.hxx"
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#ifndef _COM_SUN_STAR_XML_CRYPTO_XXMLENCRYPTIONTEMPLATE_HPP_
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#include <com/sun/star/xml/crypto/XXMLEncryptionTemplate.hpp>
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#endif
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#ifndef _COM_SUN_STAR_XML_WRAPPER_XXMLELEMENTWRAPPER_HPP_
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#include <com/sun/star/xml/wrapper/XXMLElementWrapper.hpp>
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#endif
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#ifndef _COM_SUN_STAR_LANG_XMULTISERVICEFACTORY_HPP_
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#include <com/sun/star/lang/XMultiServiceFactory.hpp>
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#endif
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namespace cssu = com::sun::star::uno;
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namespace cssl = com::sun::star::lang;
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namespace cssxc = com::sun::star::xml::crypto;
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namespace cssxw = com::sun::star::xml::wrapper;
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#define ENCRYPTION_TEMPLATE "com.sun.star.xml.crypto.XMLEncryptionTemplate"
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#define DECLARE_ASCII( SASCIIVALUE ) \
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rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( SASCIIVALUE ) )
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EncryptionEngine::EncryptionEngine( )
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:m_nIdOfBlocker(-1)
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{
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}
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bool EncryptionEngine::checkReady() const
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/****** EncryptionEngine/checkReady ******************************************
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*
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* NAME
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* checkReady -- checks the conditions for the main operation.
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*
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* SYNOPSIS
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* bReady = checkReady( );
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*
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* FUNCTION
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* checks whether all following conditions are satisfied:
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* 1. the main operation has't begun yet;
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* 2. the key material is known;
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* 3. the id of the template blocker is known;
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* 4. both the key element and the encryption template
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* are bufferred.
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*
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* INPUTS
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* empty
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*
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* RESULT
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* bReady - true if all conditions are satisfied, false otherwise
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*
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* HISTORY
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* 05.01.2004 - implemented
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*
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* AUTHOR
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* Michael Mi
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* Email: michael.mi@sun.com
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******************************************************************************/
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{
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bool rc = true;
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sal_Int32 nKeyInc = 0;
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if (m_nIdOfKeyEC != 0)
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{
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nKeyInc = 1;
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}
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if (m_bMissionDone ||
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m_nIdOfKeyEC == -1 ||
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m_nIdOfBlocker == -1 ||
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1+nKeyInc > m_nNumOfResolvedReferences )
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{
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rc = false;
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}
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return rc;
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}
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void EncryptionEngine::tryToPerform( )
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throw (cssu::Exception, cssu::RuntimeException)
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/****** EncryptionEngine/tryToPerform ****************************************
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*
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* NAME
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* tryToPerform -- tries to perform the encryption/decryption operation.
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*
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* SYNOPSIS
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* tryToPerform( );
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*
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* FUNCTION
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* if the situation is ready, perform following operations.
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* 1. prepares a encryption template;
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* 2. calls the encryption bridge component;
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* 3. clears up all used resources;
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* 4. notifies the result listener;
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* 5. sets the "accomplishment" flag.
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*
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* INPUTS
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* empty
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*
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* RESULT
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* empty
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*
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* HISTORY
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* 05.01.2004 - implemented
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*
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* AUTHOR
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* Michael Mi
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* Email: michael.mi@sun.com
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******************************************************************************/
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{
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if (checkReady())
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{
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const rtl::OUString sEncryptionTemplate (
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RTL_CONSTASCII_USTRINGPARAM( ENCRYPTION_TEMPLATE ) );
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cssu::Reference < cssxc::XXMLEncryptionTemplate > xEncryptionTemplate(
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mxMSF->createInstance( sEncryptionTemplate ), cssu::UNO_QUERY );
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OSL_ASSERT( xEncryptionTemplate.is() );
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cssu::Reference< cssxw::XXMLElementWrapper > xXMLElement
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= m_xSAXEventKeeper->getElement( m_nIdOfTemplateEC );
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xEncryptionTemplate->setTemplate(xXMLElement);
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startEngine( xEncryptionTemplate );
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/*
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* done
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*/
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clearUp( );
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notifyResultListener();
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m_bMissionDone = true;
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}
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}
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void EncryptionEngine::clearUp( ) const
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/****** EncryptionEngine/clearup *********************************************
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*
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* NAME
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* clearUp -- clear up all resources used by this operation.
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*
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* SYNOPSIS
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* clearUp( );
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*
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* FUNCTION
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* cleaning resources up includes:
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* 1. releases the ElementCollector for the encryption template element;
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* 2. releases the Blocker for the encryption template element;
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* 3. releases the ElementCollector for the key element, if there is one.
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*
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* INPUTS
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* empty
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*
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* RESULT
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* empty
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*
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* HISTORY
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* 05.01.2004 - implemented
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*
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* AUTHOR
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* Michael Mi
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* Email: michael.mi@sun.com
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******************************************************************************/
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{
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cssu::Reference < cssxc::sax::XReferenceResolvedBroadcaster >
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xReferenceResolvedBroadcaster( m_xSAXEventKeeper, cssu::UNO_QUERY );
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xReferenceResolvedBroadcaster->removeReferenceResolvedListener(
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m_nIdOfTemplateEC,
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(const cssu::Reference < cssxc::sax::XReferenceResolvedListener >)((SecurityEngine *)this));
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m_xSAXEventKeeper->removeElementCollector(m_nIdOfTemplateEC);
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if (m_nIdOfBlocker != -1)
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{
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m_xSAXEventKeeper->removeBlocker(m_nIdOfBlocker);
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}
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if (m_nIdOfKeyEC != 0 && m_nIdOfKeyEC != -1)
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{
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m_xSAXEventKeeper->removeElementCollector(m_nIdOfKeyEC);
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}
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}
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/* XBlockerMonitor */
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void SAL_CALL EncryptionEngine::setBlockerId( sal_Int32 id )
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throw (com::sun::star::uno::Exception, com::sun::star::uno::RuntimeException)
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{
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m_nIdOfBlocker = id;
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tryToPerform();
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}
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