/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_xmlsecurity.hxx"

#include "signatureverifierimpl.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 SERVICE_NAME "com.sun.star.xml.crypto.sax.SignatureVerifier"
#define IMPLEMENTATION_NAME "com.sun.star.xml.security.framework.SignatureVerifierImpl"

#define	DECLARE_ASCII( SASCIIVALUE )																			\
	rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( SASCIIVALUE ) )

SignatureVerifierImpl::SignatureVerifierImpl( const cssu::Reference< cssl::XMultiServiceFactory >& rxMSF)
{
	mxMSF = rxMSF;
}

SignatureVerifierImpl::~SignatureVerifierImpl()
{
}

bool SignatureVerifierImpl::checkReady() const
/****** SignatureVerifierImpl/checkReady *************************************
 *
 *   NAME
 *	checkReady -- checks the conditions for the signature verification.
 *
 *   SYNOPSIS
 *	bReady = checkReady( );
 *
 *   FUNCTION
 *	checks whether all following conditions are satisfied:
 *	1. the result listener is ready;
 *	2. the SignatureEngine is ready.
 *
 *   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
 ******************************************************************************/
{
	return (m_xResultListener.is() && SignatureEngine::checkReady());
}

void SignatureVerifierImpl::notifyResultListener() const
	throw (cssu::Exception, cssu::RuntimeException)
/****** SignatureVerifierImpl/notifyResultListener ***************************
 *
 *   NAME
 *	notifyResultListener -- notifies the listener about the verify result.
 *
 *   SYNOPSIS
 *	notifyResultListener( );
 *
 *   FUNCTION
 *	see NAME.
 *
 *   INPUTS
 *	empty
 *
 *   RESULT
 *	empty
 *
 *   HISTORY
 *	05.01.2004 -	implemented
 *
 *   AUTHOR
 *	Michael Mi
 *	Email: michael.mi@sun.com
 ******************************************************************************/
{
	cssu::Reference< cssxc::sax::XSignatureVerifyResultListener >
		xSignatureVerifyResultListener ( m_xResultListener , cssu::UNO_QUERY ) ;
		
	xSignatureVerifyResultListener->signatureVerified( m_nSecurityId, m_nStatus );
}

void SignatureVerifierImpl::startEngine( const cssu::Reference< 
	cssxc::XXMLSignatureTemplate >&
	xSignatureTemplate)
	throw (cssu::Exception, cssu::RuntimeException)
/****** SignatureVerifierImpl/startEngine ************************************
 *
 *   NAME
 *	startEngine -- verifies the signature.
 *
 *   SYNOPSIS
 *	startEngine( xSignatureTemplate );
 *
 *   FUNCTION
 *	see NAME.
 *
 *   INPUTS
 *	xSignatureTemplate - the signature template (along with all referenced
 *	elements) to be verified.
 *
 *   RESULT
 *	empty
 *
 *   HISTORY
 *	05.01.2004 -	implemented
 *
 *   AUTHOR
 *	Michael Mi
 *	Email: michael.mi@sun.com
 ******************************************************************************/
{
	cssu::Reference< cssxc::XXMLSignatureTemplate > xResultTemplate;
	try 
	{
		xResultTemplate = m_xXMLSignature->validate(xSignatureTemplate, m_xXMLSecurityContext);
		m_nStatus = xResultTemplate->getStatus();
	}
	catch( cssu::Exception& )
	{
		m_nStatus = cssxc::SecurityOperationStatus_RUNTIMEERROR_FAILED;
	}
}

/* XSignatureVerifyResultBroadcaster */
void SAL_CALL SignatureVerifierImpl::addSignatureVerifyResultListener( 
	const cssu::Reference< cssxc::sax::XSignatureVerifyResultListener >& listener )
	throw (cssu::Exception, cssu::RuntimeException)
{
	m_xResultListener = listener;
	tryToPerform();
}

void SAL_CALL SignatureVerifierImpl::removeSignatureVerifyResultListener( 
	const cssu::Reference< cssxc::sax::XSignatureVerifyResultListener >&)
	throw (cssu::RuntimeException)
{
}

/* XInitialization */
void SAL_CALL SignatureVerifierImpl::initialize( 
	const cssu::Sequence< cssu::Any >& aArguments ) 
	throw (cssu::Exception, cssu::RuntimeException)
{
	OSL_ASSERT(aArguments.getLength() == 5);
	
	rtl::OUString ouTempString;
	
	aArguments[0] >>= ouTempString;
	m_nSecurityId = ouTempString.toInt32();
	aArguments[1] >>= m_xSAXEventKeeper;
	aArguments[2] >>= ouTempString;
	m_nIdOfTemplateEC = ouTempString.toInt32();
	aArguments[3] >>= m_xXMLSecurityContext;
	aArguments[4] >>= m_xXMLSignature;
}
	

rtl::OUString SignatureVerifierImpl_getImplementationName ()
	throw (cssu::RuntimeException)
{
	return rtl::OUString( 
		RTL_CONSTASCII_USTRINGPARAM ( IMPLEMENTATION_NAME ) );
}

sal_Bool SAL_CALL SignatureVerifierImpl_supportsService( const rtl::OUString& ServiceName ) 
	throw (cssu::RuntimeException)
{
	return ServiceName.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM ( SERVICE_NAME ));
}

cssu::Sequence< rtl::OUString > SAL_CALL SignatureVerifierImpl_getSupportedServiceNames(  ) 
	throw (cssu::RuntimeException)
{
	cssu::Sequence < rtl::OUString > aRet(1);
	rtl::OUString* pArray = aRet.getArray();
	pArray[0] =  rtl::OUString ( RTL_CONSTASCII_USTRINGPARAM ( SERVICE_NAME ) );
	return aRet;
}
#undef SERVICE_NAME

cssu::Reference< cssu::XInterface > SAL_CALL SignatureVerifierImpl_createInstance( 
	const cssu::Reference< cssl::XMultiServiceFactory >& rSMgr)
	throw( cssu::Exception )
{
	return (cppu::OWeakObject*) new SignatureVerifierImpl(rSMgr);
}

/* XServiceInfo */
rtl::OUString SAL_CALL SignatureVerifierImpl::getImplementationName(  ) 
	throw (cssu::RuntimeException)
{
	return SignatureVerifierImpl_getImplementationName();
}
sal_Bool SAL_CALL SignatureVerifierImpl::supportsService( const rtl::OUString& rServiceName ) 
	throw (cssu::RuntimeException)
{
	return SignatureVerifierImpl_supportsService( rServiceName );
}
cssu::Sequence< rtl::OUString > SAL_CALL SignatureVerifierImpl::getSupportedServiceNames(  ) 
	throw (cssu::RuntimeException)
{
	return SignatureVerifierImpl_getSupportedServiceNames();
}