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Diffstat (limited to 'xmlsecurity/source/framework/encryptionengine.cxx')
| -rw-r--r-- | xmlsecurity/source/framework/encryptionengine.cxx | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/xmlsecurity/source/framework/encryptionengine.cxx b/xmlsecurity/source/framework/encryptionengine.cxx new file mode 100644 index 000000000000..53e0c295a192 --- /dev/null +++ b/xmlsecurity/source/framework/encryptionengine.cxx @@ -0,0 +1,216 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * 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 "encryptionengine.hxx" +#include <com/sun/star/xml/crypto/XXMLEncryptionTemplate.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 ENCRYPTION_TEMPLATE "com.sun.star.xml.crypto.XMLEncryptionTemplate" + +#define DECLARE_ASCII( SASCIIVALUE ) \ + rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( SASCIIVALUE ) ) + +EncryptionEngine::EncryptionEngine( ) + :m_nIdOfBlocker(-1) +{ +} + +bool EncryptionEngine::checkReady() const +/****** EncryptionEngine/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 id of the template blocker is known; + * 4. both the key element and the encryption 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_nIdOfBlocker == -1 || + 1+nKeyInc > m_nNumOfResolvedReferences ) + { + rc = false; + } + + return rc; +} + +void EncryptionEngine::tryToPerform( ) + throw (cssu::Exception, cssu::RuntimeException) +/****** EncryptionEngine/tryToPerform **************************************** + * + * NAME + * tryToPerform -- tries to perform the encryption/decryption operation. + * + * SYNOPSIS + * tryToPerform( ); + * + * FUNCTION + * if the situation is ready, perform following operations. + * 1. prepares a encryption template; + * 2. calls the encryption 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 sEncryptionTemplate ( + RTL_CONSTASCII_USTRINGPARAM( ENCRYPTION_TEMPLATE ) ); + cssu::Reference < cssxc::XXMLEncryptionTemplate > xEncryptionTemplate( + mxMSF->createInstance( sEncryptionTemplate ), cssu::UNO_QUERY ); + + OSL_ASSERT( xEncryptionTemplate.is() ); + + cssu::Reference< cssxw::XXMLElementWrapper > xXMLElement + = m_xSAXEventKeeper->getElement( m_nIdOfTemplateEC ); + + xEncryptionTemplate->setTemplate(xXMLElement); + + startEngine( xEncryptionTemplate ); + + /* + * done + */ + clearUp( ); + + notifyResultListener(); + + m_bMissionDone = true; + } +} + +void EncryptionEngine::clearUp( ) const +/****** EncryptionEngine/clearup ********************************************* + * + * NAME + * clearUp -- clear up all resources used by this operation. + * + * SYNOPSIS + * clearUp( ); + * + * FUNCTION + * cleaning resources up includes: + * 1. releases the ElementCollector for the encryption template element; + * 2. releases the Blocker for the encryption template element; + * 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); + + if (m_nIdOfBlocker != -1) + { + m_xSAXEventKeeper->removeBlocker(m_nIdOfBlocker); + } + + if (m_nIdOfKeyEC != 0 && m_nIdOfKeyEC != -1) + { + m_xSAXEventKeeper->removeElementCollector(m_nIdOfKeyEC); + } +} + +/* XBlockerMonitor */ +void SAL_CALL EncryptionEngine::setBlockerId( sal_Int32 id ) + throw (com::sun::star::uno::Exception, com::sun::star::uno::RuntimeException) +{ + m_nIdOfBlocker = id; + tryToPerform(); +} + |