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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: signatureengine.cxx,v $
* $Revision: 1.4 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* 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).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_xmlsecurity.hxx"
#include "signatureengine.hxx"
#include <com/sun/star/xml/crypto/XXMLSignatureTemplate.hpp>
#include <com/sun/star/xml/wrapper/XXMLElementWrapper.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
namespace cssu = com::sun::star::uno;
namespace cssl = com::sun::star::lang;
namespace cssxc = com::sun::star::xml::crypto;
namespace cssxw = com::sun::star::xml::wrapper;
#define SIGNATURE_TEMPLATE "com.sun.star.xml.crypto.XMLSignatureTemplate"
#define DECLARE_ASCII( SASCIIVALUE ) \
rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( SASCIIVALUE ) )
SignatureEngine::SignatureEngine( )
:m_nTotalReferenceNumber(-1)
{
}
bool SignatureEngine::checkReady() const
/****** SignatureEngine/checkReady *******************************************
*
* NAME
* checkReady -- checks the conditions for the main operation.
*
* SYNOPSIS
* bReady = checkReady( );
*
* FUNCTION
* checks whether all following conditions are satisfied:
* 1. the main operation has't begun yet;
* 2. the key material is known;
* 3. the amount of reference is known;
* 4. all of referenced elements, the key element and the signature
* template are bufferred.
*
* INPUTS
* empty
*
* RESULT
* bReady - true if all conditions are satisfied, false otherwise
*
* HISTORY
* 05.01.2004 - implemented
*
* AUTHOR
* Michael Mi
* Email: michael.mi@sun.com
******************************************************************************/
{
bool rc = true;
sal_Int32 nKeyInc = 0;
if (m_nIdOfKeyEC != 0)
{
nKeyInc = 1;
}
if (m_bMissionDone ||
m_nIdOfKeyEC == -1 ||
m_nTotalReferenceNumber == -1 ||
m_nTotalReferenceNumber+1+nKeyInc > m_nNumOfResolvedReferences)
{
rc = false;
}
return rc;
}
void SignatureEngine::tryToPerform( )
throw (cssu::Exception, cssu::RuntimeException)
/****** SignatureEngine/tryToPerform *****************************************
*
* NAME
* tryToPerform -- tries to perform the signature operation.
*
* SYNOPSIS
* tryToPerform( );
*
* FUNCTION
* if the situation is ready, perform following operations.
* 1. prepares a signature template;
* 2. calls the signature bridge component;
* 3. clears up all used resources;
* 4. notifies the result listener;
* 5. sets the "accomplishment" flag.
*
* INPUTS
* empty
*
* RESULT
* empty
*
* HISTORY
* 05.01.2004 - implemented
*
* AUTHOR
* Michael Mi
* Email: michael.mi@sun.com
******************************************************************************/
{
if (checkReady())
{
const rtl::OUString ouSignatureTemplate (
RTL_CONSTASCII_USTRINGPARAM( SIGNATURE_TEMPLATE ) );
cssu::Reference < cssxc::XXMLSignatureTemplate >
xSignatureTemplate( mxMSF->createInstance( ouSignatureTemplate ), cssu::UNO_QUERY );
OSL_ASSERT( xSignatureTemplate.is() );
cssu::Reference< cssxw::XXMLElementWrapper >
xXMLElement = m_xSAXEventKeeper->getElement( m_nIdOfTemplateEC );
xSignatureTemplate->setTemplate(xXMLElement);
std::vector< sal_Int32 >::const_iterator ii = m_vReferenceIds.begin();
for( ; ii != m_vReferenceIds.end() ; ++ii )
{
xXMLElement = m_xSAXEventKeeper->getElement( *ii );
xSignatureTemplate->setTarget(xXMLElement);
}
/*
* set the Uri binding
*/
xSignatureTemplate->setBinding( this );
startEngine( xSignatureTemplate );
/*
* done
*/
clearUp( );
notifyResultListener();
m_bMissionDone = true;
}
}
void SignatureEngine::clearUp( ) const
/****** SignatureEngine/clearUp **********************************************
*
* NAME
* clearUp -- clear up all resources used by this operation.
*
* SYNOPSIS
* clearUp( );
*
* FUNCTION
* cleaning resources up includes:
* 1. releases the ElementCollector for the signature template element;
* 2. releases ElementCollectors for referenced elements;
* 3. releases the ElementCollector for the key element, if there is one.
*
* INPUTS
* empty
*
* RESULT
* empty
*
* HISTORY
* 05.01.2004 - implemented
*
* AUTHOR
* Michael Mi
* Email: michael.mi@sun.com
******************************************************************************/
{
cssu::Reference < cssxc::sax::XReferenceResolvedBroadcaster >
xReferenceResolvedBroadcaster( m_xSAXEventKeeper, cssu::UNO_QUERY );
xReferenceResolvedBroadcaster->removeReferenceResolvedListener(
m_nIdOfTemplateEC,
(const cssu::Reference < cssxc::sax::XReferenceResolvedListener >)((SecurityEngine *)this));
m_xSAXEventKeeper->removeElementCollector(m_nIdOfTemplateEC);
std::vector< sal_Int32 >::const_iterator ii = m_vReferenceIds.begin();
for( ; ii != m_vReferenceIds.end() ; ++ii )
{
xReferenceResolvedBroadcaster->removeReferenceResolvedListener(
*ii,
(const cssu::Reference < cssxc::sax::XReferenceResolvedListener >)((SecurityEngine *)this));
m_xSAXEventKeeper->removeElementCollector(*ii);
}
if (m_nIdOfKeyEC != 0 && m_nIdOfKeyEC != -1)
{
m_xSAXEventKeeper->removeElementCollector(m_nIdOfKeyEC);
}
}
/* XReferenceCollector */
void SAL_CALL SignatureEngine::setReferenceCount( sal_Int32 count )
throw (cssu::Exception, cssu::RuntimeException)
{
m_nTotalReferenceNumber = count;
tryToPerform();
}
void SAL_CALL SignatureEngine::setReferenceId( sal_Int32 id )
throw (cssu::Exception, cssu::RuntimeException)
{
m_vReferenceIds.push_back( id );
}
/* XUriBinding */
void SAL_CALL SignatureEngine::setUriBinding(
const rtl::OUString& uri,
const cssu::Reference< com::sun::star::io::XInputStream >& aInputStream )
throw (cssu::Exception, cssu::RuntimeException)
{
m_vUris.push_back(uri);
m_vXInputStreams.push_back(aInputStream);
}
cssu::Reference< com::sun::star::io::XInputStream > SAL_CALL SignatureEngine::getUriBinding( const rtl::OUString& uri )
throw (cssu::Exception, cssu::RuntimeException)
{
cssu::Reference< com::sun::star::io::XInputStream > xInputStream;
int size = m_vUris.size();
for( int i=0; i<size; ++i)
{
if (m_vUris[i] == uri)
{
xInputStream = m_vXInputStreams[i];
break;
}
}
return xInputStream;
}
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