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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:51:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:51:28 +0000 |
commit | 940b4d1848e8c70ab7642901a68594e8016caffc (patch) | |
tree | eb72f344ee6c3d9b80a7ecc079ea79e9fba8676d /xmlsecurity/source/xmlsec/mscrypt/xmlsignature_mscryptimpl.cxx | |
parent | Initial commit. (diff) | |
download | libreoffice-upstream.tar.xz libreoffice-upstream.zip |
Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'xmlsecurity/source/xmlsec/mscrypt/xmlsignature_mscryptimpl.cxx')
-rw-r--r-- | xmlsecurity/source/xmlsec/mscrypt/xmlsignature_mscryptimpl.cxx | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/xmlsecurity/source/xmlsec/mscrypt/xmlsignature_mscryptimpl.cxx b/xmlsecurity/source/xmlsec/mscrypt/xmlsignature_mscryptimpl.cxx new file mode 100644 index 000000000..dcbad0348 --- /dev/null +++ b/xmlsecurity/source/xmlsec/mscrypt/xmlsignature_mscryptimpl.cxx @@ -0,0 +1,305 @@ +/* -*- 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 <xmlsec-wrapper.h> + +#include <com/sun/star/xml/crypto/SecurityOperationStatus.hpp> +#include <com/sun/star/xml/crypto/XXMLSignature.hpp> + +#include "securityenvironment_mscryptimpl.hxx" + +#include <xmlsec/xmldocumentwrapper_xmlsecimpl.hxx> +#include <xmlelementwrapper_xmlsecimpl.hxx> +#include <xmlsec/xmlstreamio.hxx> +#include <xmlsec/errorcallback.hxx> +#include <cppuhelper/supportsservice.hxx> + +using namespace ::com::sun::star; +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 ; + +namespace { + +class XMLSignature_MSCryptImpl : public ::cppu::WeakImplHelper< + css::xml::crypto::XXMLSignature , + css::lang::XServiceInfo > +{ + public: + explicit XMLSignature_MSCryptImpl(); + + //Methods from XXMLSignature + virtual css::uno::Reference< css::xml::crypto::XXMLSignatureTemplate > SAL_CALL generate( + const css::uno::Reference< css::xml::crypto::XXMLSignatureTemplate >& aTemplate , + const css::uno::Reference< css::xml::crypto::XSecurityEnvironment >& aEnvironment + ) override; + + virtual css::uno::Reference< css::xml::crypto::XXMLSignatureTemplate > SAL_CALL validate( + const css::uno::Reference< css::xml::crypto::XXMLSignatureTemplate >& aTemplate , + const css::uno::Reference< css::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 css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override; +} ; + +} + +XMLSignature_MSCryptImpl::XMLSignature_MSCryptImpl() { +} + +/* XXMLSignature */ +Reference< XXMLSignatureTemplate > +SAL_CALL XMLSignature_MSCryptImpl::generate( + const Reference< XXMLSignatureTemplate >& aTemplate , + const Reference< XSecurityEnvironment >& aEnvironment +) +{ + xmlSecKeysMngrPtr pMngr = nullptr ; + xmlSecDSigCtxPtr pDsigCtx = nullptr ; + xmlNodePtr pNode = nullptr ; + + if( !aTemplate.is() ) + throw RuntimeException() ; + + if( !aEnvironment.is() ) + throw RuntimeException() ; + + //Get Keys Manager + Reference< XUnoTunnel > xSecTunnel( aEnvironment , UNO_QUERY_THROW ) ; + SecurityEnvironment_MSCryptImpl* pSecEnv = reinterpret_cast<SecurityEnvironment_MSCryptImpl*>(xSecTunnel->getSomething( SecurityEnvironment_MSCryptImpl::getUnoTunnelId() )); + if( pSecEnv == nullptr ) + 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*>(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( ); + + pMngr = pSecEnv->createKeysManager(); + if( !pMngr ) { + throw RuntimeException() ; + } + + //Create Signature context + pDsigCtx = xmlSecDSigCtxCreate( pMngr ) ; + if( pDsigCtx == nullptr ) + { + //throw XMLSignatureException() ; + SecurityEnvironment_MSCryptImpl::destroyKeysManager( pMngr ); + clearErrorRecorder(); + return aTemplate; + } + + //Sign the template + if( xmlSecDSigCtxSign( pDsigCtx , 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); + } + + + xmlSecDSigCtxDestroy( pDsigCtx ) ; + SecurityEnvironment_MSCryptImpl::destroyKeysManager( pMngr ); + + //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 +) { + xmlSecKeysMngrPtr pMngr = nullptr ; + xmlSecDSigCtxPtr pDsigCtx = nullptr ; + xmlNodePtr pNode = nullptr ; + + 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_THROW ) ; + SecurityEnvironment_MSCryptImpl* pSecEnv = reinterpret_cast<SecurityEnvironment_MSCryptImpl*>(xSecTunnel->getSomething( SecurityEnvironment_MSCryptImpl::getUnoTunnelId() )); + if( pSecEnv == nullptr ) + 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*>(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( ); + + pMngr = pSecEnv->createKeysManager(); + if( !pMngr ) { + throw RuntimeException() ; + } + + //Create Signature context + pDsigCtx = xmlSecDSigCtxCreate( pMngr ) ; + if( pDsigCtx == nullptr ) + { + SecurityEnvironment_MSCryptImpl::destroyKeysManager( pMngr ); + clearErrorRecorder(); + return aTemplate; + } + + // We do certificate verification ourselves. + pDsigCtx->keyInfoReadCtx.flags |= XMLSEC_KEYINFO_FLAGS_X509DATA_DONT_VERIFY_CERTS; + + //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. + int rs = xmlSecDSigCtxVerify(pDsigCtx , 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 && nReferenceCount == nReferenceGood) + { + 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); + } + + xmlSecDSigCtxDestroy( pDsigCtx ) ; + SecurityEnvironment_MSCryptImpl::destroyKeysManager( pMngr ); + + //Unregistered the stream/URI binding + if( xUriBinding.is() ) + xmlUnregisterStreamInputCallbacks() ; + + + clearErrorRecorder(); + return aTemplate; +} + +/* XServiceInfo */ +OUString SAL_CALL XMLSignature_MSCryptImpl::getImplementationName() { + return "com.sun.star.xml.crypto.XMLSignature"; +} + +/* XServiceInfo */ +sal_Bool SAL_CALL XMLSignature_MSCryptImpl::supportsService( const OUString& serviceName) { +return cppu::supportsService(this, serviceName); +} + +/* XServiceInfo */ +Sequence< OUString > SAL_CALL XMLSignature_MSCryptImpl::getSupportedServiceNames() { + Sequence<OUString> seqServiceNames { "com.sun.star.xml.crypto.XMLSignature" }; + return seqServiceNames ; +} + +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_MSCryptImpl); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |