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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 <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)
+ 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*/,
+ uno::Sequence<uno::Any> const& /*rSeq*/)
+{
+ return cppu::acquire(new XMLSignature_NssImpl);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */