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317 | /* -*- 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 <xmlsec-wrapper.h>
#include <xmlelementwrapper_xmlsecimpl.hxx>
#include <xmlsec/xmlstreamio.hxx>
#include <xmlsec/errorcallback.hxx>
#include "securityenvironment_nssimpl.hxx"
#include <com/sun/star/xml/crypto/XXMLSignature.hpp>
#include <memory>
namespace com::sun::star::uno { class XComponentContext; }
using namespace ::com::sun::star;
using namespace ::com::sun::star::uno ;
using namespace ::com::sun::star::lang ;
using ::com::sun::star::xml::wrapper::XXMLElementWrapper ;
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 ;
namespace std
{
template <> struct default_delete<xmlSecKeysMngr>
{
void operator()(xmlSecKeysMngrPtr ptr) { SecurityEnvironment_NssImpl::destroyKeysManager(ptr); }
};
template <> struct default_delete<xmlSecDSigCtx>
{
void operator()(xmlSecDSigCtxPtr ptr) { xmlSecDSigCtxDestroy(ptr); }
};
}
namespace {
class XMLSignature_NssImpl
: public ::cppu::WeakImplHelper<xml::crypto::XXMLSignature, lang::XServiceInfo>
{
public:
explicit XMLSignature_NssImpl();
//Methods from XXMLSignature
virtual uno::Reference<xml::crypto::XXMLSignatureTemplate> SAL_CALL
generate(const uno::Reference<xml::crypto::XXMLSignatureTemplate>& aTemplate,
const uno::Reference<xml::crypto::XSecurityEnvironment>& aEnvironment) override;
virtual uno::Reference<xml::crypto::XXMLSignatureTemplate> SAL_CALL
validate(const uno::Reference<xml::crypto::XXMLSignatureTemplate>& aTemplate,
const uno::Reference<xml::crypto::XXMLSecurityContext>& aContext) override;
//Methods from XServiceInfo
virtual OUString SAL_CALL getImplementationName() override;
virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override;
virtual uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override;
};
}
XMLSignature_NssImpl::XMLSignature_NssImpl() {
}
/* XXMLSignature */
Reference< XXMLSignatureTemplate >
SAL_CALL XMLSignature_NssImpl::generate(
const Reference< XXMLSignatureTemplate >& aTemplate ,
const Reference< XSecurityEnvironment >& aEnvironment
)
{
xmlNodePtr pNode = nullptr ;
if( !aTemplate.is() )
throw RuntimeException() ;
if( !aEnvironment.is() )
throw RuntimeException() ;
//Get the xml node
Reference< XXMLElementWrapper > xElement = aTemplate->getTemplate() ;
if( !xElement.is() ) {
throw RuntimeException() ;
}
Reference< XUnoTunnel > xNodTunnel( xElement , UNO_QUERY_THROW ) ;
XMLElementWrapper_XmlSecImpl* pElement =
reinterpret_cast<XMLElementWrapper_XmlSecImpl*>(
sal::static_int_cast<sal_uIntPtr>(
xNodTunnel->getSomething( XMLElementWrapper_XmlSecImpl::getUnoTunnelId() )));
if( pElement == nullptr ) {
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() ;
}
//Get Keys Manager
Reference< XUnoTunnel > xSecTunnel( aEnvironment , UNO_QUERY_THROW ) ;
// the key manager should be retrieved from SecurityEnvironment, instead of SecurityContext
SecurityEnvironment_NssImpl* pSecEnv =
reinterpret_cast<SecurityEnvironment_NssImpl*>(
sal::static_int_cast<sal_uIntPtr>(
xSecTunnel->getSomething( SecurityEnvironment_NssImpl::getUnoTunnelId() )));
if( pSecEnv == nullptr )
throw RuntimeException() ;
setErrorRecorder();
std::unique_ptr<xmlSecKeysMngr> pMngr(pSecEnv->createKeysManager());
if( !pMngr ) {
throw RuntimeException() ;
}
//Create Signature context
std::unique_ptr<xmlSecDSigCtx> pDsigCtx(xmlSecDSigCtxCreate(pMngr.get()));
if( pDsigCtx == nullptr )
{
//throw XMLSignatureException() ;
clearErrorRecorder();
return aTemplate;
}
//Sign the template
if( xmlSecDSigCtxSign( pDsigCtx.get() , pNode ) == 0 )
{
if (pDsigCtx->status == xmlSecDSigStatusSucceeded)
aTemplate->setStatus(css::xml::crypto::SecurityOperationStatus_OPERATION_SUCCEEDED);
else
aTemplate->setStatus(css::xml::crypto::SecurityOperationStatus_UNKNOWN);
}
else
{
aTemplate->setStatus(css::xml::crypto::SecurityOperationStatus_UNKNOWN);
}
//Unregistered the stream/URI binding
if( xUriBinding.is() )
xmlUnregisterStreamInputCallbacks() ;
clearErrorRecorder();
return aTemplate ;
}
/* XXMLSignature */
Reference< XXMLSignatureTemplate >
SAL_CALL XMLSignature_NssImpl::validate(
const Reference< XXMLSignatureTemplate >& aTemplate ,
const Reference< XXMLSecurityContext >& aSecurityCtx
) {
xmlNodePtr pNode = nullptr ;
//sal_Bool valid ;
if( !aTemplate.is() )
throw RuntimeException() ;
if( !aSecurityCtx.is() )
throw RuntimeException() ;
//Get the xml node
Reference< XXMLElementWrapper > xElement = aTemplate->getTemplate() ;
if( !xElement.is() )
throw RuntimeException() ;
Reference< XUnoTunnel > xNodTunnel( xElement , UNO_QUERY_THROW ) ;
XMLElementWrapper_XmlSecImpl* pElement =
reinterpret_cast<XMLElementWrapper_XmlSecImpl*>(
sal::static_int_cast<sal_uIntPtr>(
xNodTunnel->getSomething( XMLElementWrapper_XmlSecImpl::getUnoTunnelId() )));
if( pElement == nullptr )
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();
sal_Int32 nSecurityEnvironment = aSecurityCtx->getSecurityEnvironmentNumber();
sal_Int32 i;
for (i=0; i<nSecurityEnvironment; ++i)
{
Reference< XSecurityEnvironment > aEnvironment = aSecurityCtx->getSecurityEnvironmentByIndex(i);
//Get Keys Manager
Reference< XUnoTunnel > xSecTunnel( aEnvironment , UNO_QUERY_THROW ) ;
SecurityEnvironment_NssImpl* pSecEnv =
reinterpret_cast<SecurityEnvironment_NssImpl*>(
sal::static_int_cast<sal_uIntPtr>(
xSecTunnel->getSomething( SecurityEnvironment_NssImpl::getUnoTunnelId() )));
if( pSecEnv == nullptr )
throw RuntimeException() ;
std::unique_ptr<xmlSecKeysMngr> pMngr(pSecEnv->createKeysManager());
if( !pMngr ) {
throw RuntimeException() ;
}
//Create Signature context
std::unique_ptr<xmlSecDSigCtx> pDsigCtx(xmlSecDSigCtxCreate(pMngr.get()));
if( pDsigCtx == nullptr )
{
clearErrorRecorder();
return aTemplate;
}
// We do certificate verification ourselves.
pDsigCtx->keyInfoReadCtx.flags |= XMLSEC_KEYINFO_FLAGS_X509DATA_DONT_VERIFY_CERTS;
//Verify signature
int rs = xmlSecDSigCtxVerify( pDsigCtx.get() , pNode );
// Also verify manifest: this is empty for ODF, but contains everything (except signature metadata) for OOXML.
xmlSecSize nReferenceCount = xmlSecPtrListGetSize(&pDsigCtx->manifestReferences);
// Require that all manifest references are also good.
xmlSecSize nReferenceGood = 0;
for (xmlSecSize nReference = 0; nReference < nReferenceCount; ++nReference)
{
xmlSecDSigReferenceCtxPtr pReference = static_cast<xmlSecDSigReferenceCtxPtr>(xmlSecPtrListGetItem(&pDsigCtx->manifestReferences, nReference));
if (pReference)
{
if (pReference->status == xmlSecDSigStatusSucceeded)
++nReferenceGood;
}
}
if (rs == 0 && pDsigCtx->status == xmlSecDSigStatusSucceeded && nReferenceCount == nReferenceGood)
{
aTemplate->setStatus(css::xml::crypto::SecurityOperationStatus_OPERATION_SUCCEEDED);
break;
}
else
{
aTemplate->setStatus(css::xml::crypto::SecurityOperationStatus_UNKNOWN);
}
}
//Unregistered the stream/URI binding
if( xUriBinding.is() )
xmlUnregisterStreamInputCallbacks() ;
//return valid ;
clearErrorRecorder();
return aTemplate;
}
/* XServiceInfo */
OUString SAL_CALL XMLSignature_NssImpl::getImplementationName()
{
return "com.sun.star.xml.crypto.XMLSignature";
}
/* XServiceInfo */
sal_Bool SAL_CALL XMLSignature_NssImpl::supportsService(const OUString& rServiceName)
{
const css::uno::Sequence<OUString> aServiceNames = getSupportedServiceNames();
for (OUString const & rCurrentServiceName : aServiceNames)
{
if (rCurrentServiceName == rServiceName)<--- Consider using std::any_of algorithm instead of a raw loop.
return true;
}
return false;
}
/* XServiceInfo */
Sequence<OUString> SAL_CALL XMLSignature_NssImpl::getSupportedServiceNames()
{
return { "com.sun.star.xml.crypto.XMLSignature" };
}
extern "C" SAL_DLLPUBLIC_EXPORT uno::XInterface*
com_sun_star_xml_crypto_XMLSignature_get_implementation(uno::XComponentContext* /*pCtx*/,<--- The function 'com_sun_star_xml_crypto_XMLSignature_get_implementation' is never used.
uno::Sequence<uno::Any> const& /*rSeq*/)
{
return cppu::acquire(new XMLSignature_NssImpl);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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