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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef _SECURITYENGINE_HXX
#define _SECURITYENGINE_HXX
#include <com/sun/star/xml/crypto/sax/XReferenceResolvedListener.hpp>
#include <com/sun/star/xml/crypto/sax/XReferenceResolvedBroadcaster.hpp>
#include <com/sun/star/xml/crypto/sax/XKeyCollector.hpp>
#include <com/sun/star/xml/crypto/sax/XMissionTaker.hpp>
#include <com/sun/star/xml/crypto/sax/XSAXEventKeeper.hpp>
#include <com/sun/star/xml/crypto/XXMLSignature.hpp>
#include <cppuhelper/implbase3.hxx>
class SecurityEngine : public cppu::WeakImplHelper3
<
com::sun::star::xml::crypto::sax::XReferenceResolvedListener,
com::sun::star::xml::crypto::sax::XKeyCollector,
com::sun::star::xml::crypto::sax::XMissionTaker
>
/****** securityengine.hxx/CLASS SecurityEngine *******************************
*
* NAME
* SecurityEngine -- Base class of SignatureEngine and EncryptionEngine
*
* FUNCTION
* Maintains common members and methods related with security engine
* operation.
*
* AUTHOR
* Michael Mi
* Email: michael.mi@sun.com
******************************************************************************/
{
protected:
/*
* A SAXEventKeeper internally maintians all resources that a security
* operation needs. The m_xSAXEventKeeper member is used to release
* those resources when the security operation finishes.
*/
com::sun::star::uno::Reference<
com::sun::star::xml::crypto::sax::XSAXEventKeeper > m_xSAXEventKeeper;
/*
* the id of ElementCollector of the template element.
* For a signature, the template element is the Signature element,
* for a encryption, the EncryptedData/EncryptedKey element is.
*/
sal_Int32 m_nIdOfTemplateEC;
/*
* remembers how many referenced elements have been bufferred completely,
* including the key element, template element, and referenced element of
* signature.
*/
sal_Int32 m_nNumOfResolvedReferences;
/*
* the id of ElementCollector of the key element.
* If a Signature element or EncryptedData/EncryptedKey element has
* an internal key sub-element, then this member should be -1
*/
sal_Int32 m_nIdOfKeyEC;
/*
* remembers whether the current opertion has finished.
*/
bool m_bMissionDone;
/*
* the Id of the security entity, a signature or encryption, which is used for
* the result listener to identify the entity.
*/
sal_Int32 m_nSecurityId;
/*
* the status of the operation
*/
com::sun::star::xml::crypto::SecurityOperationStatus m_nStatus;
/*
* the result listener, which will receives the security operation result.
*/
com::sun::star::uno::Reference<
com::sun::star::uno::XInterface >
m_xResultListener;
protected:
explicit SecurityEngine();
virtual ~SecurityEngine() {};
/*
* perform the security operation.
* Any derived class will implement this method respectively.
*/
virtual void tryToPerform( )
throw (com::sun::star::uno::Exception, com::sun::star::uno::RuntimeException){};
/*
* clear up all resources used by this operation.
* This method is called after the operation finishes, or a End-Your-Mission
* message is received.
* Any derived class will implement this method respectively.
*/
virtual void clearUp( ) const {};
/*
* notifies any possible result listener.
* When verify a signature or conduct a decryption, the operation result will
* be transferred to a listener by this method.
* Any derived class will implement this method respectively.
*/
virtual void notifyResultListener() const
throw (com::sun::star::uno::Exception, com::sun::star::uno::RuntimeException)
{};
/*
* checks whether everything is ready.
* Any derived class will implement this method respectively.
*/
virtual bool checkReady() const { return true; };
public:
/* XReferenceResolvedListener */
virtual void SAL_CALL referenceResolved( sal_Int32 referenceId )
throw (com::sun::star::uno::Exception, com::sun::star::uno::RuntimeException);
/* XKeyCollector */
virtual void SAL_CALL setKeyId( sal_Int32 id )
throw (com::sun::star::uno::Exception, com::sun::star::uno::RuntimeException);
/* XMissionTaker */
virtual sal_Bool SAL_CALL endMission( )
throw (com::sun::star::uno::RuntimeException);
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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