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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 .
*/
#include <sal/config.h>
#include <rtl/uuid.h>
#include "com/sun/star/xml/crypto/SecurityOperationStatus.hpp"
#include "xmlsignature_mscryptimpl.hxx"
#include "xmldocumentwrapper_xmlsecimpl.hxx"
#include "xmlelementwrapper_xmlsecimpl.hxx"
#include "securityenvironment_mscryptimpl.hxx"
#include "xmlstreamio.hxx"
#include "errorcallback.hxx"
#include "xmlsecurity/xmlsec-wrapper.h"
using namespace ::com::sun::star::uno ;
using namespace ::com::sun::star::lang ;
using ::com::sun::star::lang::XMultiServiceFactory ;
using ::com::sun::star::lang::XSingleServiceFactory ;
using ::com::sun::star::xml::wrapper::XXMLElementWrapper ;
using ::com::sun::star::xml::wrapper::XXMLDocumentWrapper ;
using ::com::sun::star::xml::crypto::XSecurityEnvironment ;
using ::com::sun::star::xml::crypto::XXMLSignature ;
using ::com::sun::star::xml::crypto::XXMLSignatureTemplate ;
using ::com::sun::star::xml::crypto::XXMLSecurityContext ;
using ::com::sun::star::xml::crypto::XUriBinding ;
using ::com::sun::star::xml::crypto::XMLSignatureException ;
XMLSignature_MSCryptImpl :: XMLSignature_MSCryptImpl( const Reference< XMultiServiceFactory >& aFactory ) : m_xServiceManager( aFactory ) {
}
XMLSignature_MSCryptImpl :: ~XMLSignature_MSCryptImpl() {
}
/* XXMLSignature */
Reference< XXMLSignatureTemplate >
SAL_CALL XMLSignature_MSCryptImpl :: generate(
const Reference< XXMLSignatureTemplate >& aTemplate ,
const Reference< XSecurityEnvironment >& aEnvironment
) throw( com::sun::star::xml::crypto::XMLSignatureException,
com::sun::star::uno::SecurityException )
{
xmlSecKeysMngrPtr pMngr = NULL ;
xmlSecDSigCtxPtr pDsigCtx = NULL ;
xmlNodePtr pNode = NULL ;
if( !aTemplate.is() )
throw RuntimeException() ;
if( !aEnvironment.is() )
throw RuntimeException() ;
//Get Keys Manager
Reference< XUnoTunnel > xSecTunnel( aEnvironment , UNO_QUERY ) ;
if( !xSecTunnel.is() ) {
throw RuntimeException() ;
}
SecurityEnvironment_MSCryptImpl* pSecEnv = ( SecurityEnvironment_MSCryptImpl* )xSecTunnel->getSomething( SecurityEnvironment_MSCryptImpl::getUnoTunnelId() ) ;
if( pSecEnv == NULL )
throw RuntimeException() ;
//Get the xml node
Reference< XXMLElementWrapper > xElement = aTemplate->getTemplate() ;
if( !xElement.is() ) {
throw RuntimeException() ;
}
Reference< XUnoTunnel > xNodTunnel( xElement , UNO_QUERY ) ;
if( !xNodTunnel.is() ) {
throw RuntimeException() ;
}
XMLElementWrapper_XmlSecImpl* pElement = ( XMLElementWrapper_XmlSecImpl* )xNodTunnel->getSomething( XMLElementWrapper_XmlSecImpl::getUnoTunnelImplementationId() ) ;
if( pElement == NULL ) {
throw RuntimeException() ;
}
pNode = pElement->getNativeElement() ;
//Get the stream/URI binding
Reference< XUriBinding > xUriBinding = aTemplate->getBinding() ;
if( xUriBinding.is() ) {
//Register the stream input callbacks into libxml2
if( xmlRegisterStreamInputCallbacks( xUriBinding ) < 0 )
throw RuntimeException() ;
}
setErrorRecorder( );
pMngr = pSecEnv->createKeysManager() ; //i39448
if( !pMngr ) {
throw RuntimeException() ;
}
//Create Signature context
pDsigCtx = xmlSecDSigCtxCreate( pMngr ) ;
if( pDsigCtx == NULL )
{
//throw XMLSignatureException() ;
pSecEnv->destroyKeysManager( pMngr ) ; //i39448
clearErrorRecorder();
return aTemplate;
}
//Sign the template
if( xmlSecDSigCtxSign( pDsigCtx , pNode ) == 0 )
{
if (pDsigCtx->status == xmlSecDSigStatusSucceeded)
aTemplate->setStatus(com::sun::star::xml::crypto::SecurityOperationStatus_OPERATION_SUCCEEDED);
else
aTemplate->setStatus(com::sun::star::xml::crypto::SecurityOperationStatus_UNKNOWN);
}
else
{
aTemplate->setStatus(com::sun::star::xml::crypto::SecurityOperationStatus_UNKNOWN);
}
xmlSecDSigCtxDestroy( pDsigCtx ) ;
pSecEnv->destroyKeysManager( pMngr ) ; //i39448
//Unregistered the stream/URI binding
if( xUriBinding.is() )
xmlUnregisterStreamInputCallbacks() ;
clearErrorRecorder();
return aTemplate ;
}
/* XXMLSignature */
Reference< XXMLSignatureTemplate >
SAL_CALL XMLSignature_MSCryptImpl :: validate(
const Reference< XXMLSignatureTemplate >& aTemplate ,
const Reference< XXMLSecurityContext >& aSecurityCtx
) throw( com::sun::star::uno::RuntimeException,
com::sun::star::uno::SecurityException,
com::sun::star::xml::crypto::XMLSignatureException ) {
xmlSecKeysMngrPtr pMngr = NULL ;
xmlSecDSigCtxPtr pDsigCtx = NULL ;
xmlNodePtr pNode = NULL ;
if( !aTemplate.is() )
throw RuntimeException() ;
if( !aSecurityCtx.is() )
throw RuntimeException() ;
//Get Keys Manager
Reference< XSecurityEnvironment > xSecEnv
= aSecurityCtx->getSecurityEnvironmentByIndex(
aSecurityCtx->getDefaultSecurityEnvironmentIndex());
Reference< XUnoTunnel > xSecTunnel( xSecEnv , UNO_QUERY ) ;
if( !xSecTunnel.is() ) {
throw RuntimeException() ;
}
SecurityEnvironment_MSCryptImpl* pSecEnv = ( SecurityEnvironment_MSCryptImpl* )xSecTunnel->getSomething( SecurityEnvironment_MSCryptImpl::getUnoTunnelId() ) ;
if( pSecEnv == NULL )
throw RuntimeException() ;
//Get the xml node
Reference< XXMLElementWrapper > xElement = aTemplate->getTemplate() ;
if( !xElement.is() )
throw RuntimeException() ;
Reference< XUnoTunnel > xNodTunnel( xElement , UNO_QUERY ) ;
if( !xNodTunnel.is() ) {
throw RuntimeException() ;
}
XMLElementWrapper_XmlSecImpl* pElement = ( XMLElementWrapper_XmlSecImpl* )xNodTunnel->getSomething( XMLElementWrapper_XmlSecImpl::getUnoTunnelImplementationId() ) ;
if( pElement == NULL )
throw RuntimeException() ;
pNode = pElement->getNativeElement() ;
//Get the stream/URI binding
Reference< XUriBinding > xUriBinding = aTemplate->getBinding() ;
if( xUriBinding.is() ) {
//Register the stream input callbacks into libxml2
if( xmlRegisterStreamInputCallbacks( xUriBinding ) < 0 )
throw RuntimeException() ;
}
setErrorRecorder( );
pMngr = pSecEnv->createKeysManager() ; //i39448
if( !pMngr ) {
throw RuntimeException() ;
}
//Create Signature context
pDsigCtx = xmlSecDSigCtxCreate( pMngr ) ;
if( pDsigCtx == NULL )
{
pSecEnv->destroyKeysManager( pMngr ) ; //i39448
clearErrorRecorder();
return aTemplate;
}
//Verify signature
//The documentation says that the signature is only valid if the return value is 0 (that is, not < 0)
//AND pDsigCtx->status == xmlSecDSigStatusSucceeded. That is, we must not make any assumptions, if
//the return value is < 0. Then we must regard the signature as INVALID. We cannot use the
//error recorder feature to get the ONE error that made the verification fail, because there is no
//documentation/specification as to how to interpret the number of recorded errors and what is the initial
//error.
if( xmlSecDSigCtxVerify( pDsigCtx , pNode ) == 0 )
{
if (pDsigCtx->status == xmlSecDSigStatusSucceeded)
aTemplate->setStatus(com::sun::star::xml::crypto::SecurityOperationStatus_OPERATION_SUCCEEDED);
else
aTemplate->setStatus(com::sun::star::xml::crypto::SecurityOperationStatus_UNKNOWN);
}
else
{
aTemplate->setStatus(com::sun::star::xml::crypto::SecurityOperationStatus_UNKNOWN);
}
xmlSecDSigCtxDestroy( pDsigCtx ) ;
pSecEnv->destroyKeysManager( pMngr ) ; //i39448
//Unregistered the stream/URI binding
if( xUriBinding.is() )
xmlUnregisterStreamInputCallbacks() ;
clearErrorRecorder();
return aTemplate;
}
/* XInitialization */
void SAL_CALL XMLSignature_MSCryptImpl :: initialize( const Sequence< Any >& /*aArguments*/ ) throw( Exception, RuntimeException ) {
// TBD
} ;
/* XServiceInfo */
OUString SAL_CALL XMLSignature_MSCryptImpl :: getImplementationName() throw( RuntimeException ) {
return impl_getImplementationName() ;
}
/* XServiceInfo */
sal_Bool SAL_CALL XMLSignature_MSCryptImpl :: supportsService( const OUString& serviceName) throw( RuntimeException ) {
Sequence< OUString > seqServiceNames = getSupportedServiceNames() ;
const OUString* pArray = seqServiceNames.getConstArray() ;
for( sal_Int32 i = 0 ; i < seqServiceNames.getLength() ; i ++ ) {
if( *( pArray + i ) == serviceName )
return sal_True ;
}
return sal_False ;
}
/* XServiceInfo */
Sequence< OUString > SAL_CALL XMLSignature_MSCryptImpl :: getSupportedServiceNames() throw( RuntimeException ) {
return impl_getSupportedServiceNames() ;
}
//Helper for XServiceInfo
Sequence< OUString > XMLSignature_MSCryptImpl :: impl_getSupportedServiceNames() {
::osl::Guard< ::osl::Mutex > aGuard( ::osl::Mutex::getGlobalMutex() ) ;
Sequence< OUString > seqServiceNames( 1 ) ;
seqServiceNames.getArray()[0] = OUString("com.sun.star.xml.crypto.XMLSignature") ;
return seqServiceNames ;
}
OUString XMLSignature_MSCryptImpl :: impl_getImplementationName() throw( RuntimeException ) {
return OUString("com.sun.star.xml.security.bridge.xmlsec.XMLSignature_MSCryptImpl") ;
}
//Helper for registry
Reference< XInterface > SAL_CALL XMLSignature_MSCryptImpl :: impl_createInstance( const Reference< XMultiServiceFactory >& aServiceManager ) throw( RuntimeException ) {
return Reference< XInterface >( *new XMLSignature_MSCryptImpl( aServiceManager ) ) ;
}
Reference< XSingleServiceFactory > XMLSignature_MSCryptImpl :: impl_createFactory( const Reference< XMultiServiceFactory >& aServiceManager ) {
return ::cppu::createSingleFactory( aServiceManager , impl_getImplementationName() , impl_createInstance , impl_getSupportedServiceNames() ) ;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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