820bd4b3b6
gpg4libre Change-Id: I89593224590007e61bce95c14922c08551282067 Reviewed-on: https://gerrit.libreoffice.org/39742 Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de> Tested-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
408 lines
14 KiB
C++
408 lines
14 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include "xsecctl.hxx"
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#include <com/sun/star/xml/crypto/sax/XKeyCollector.hpp>
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#include <com/sun/star/xml/crypto/sax/ElementMarkPriority.hpp>
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#include <com/sun/star/xml/crypto/sax/XReferenceResolvedBroadcaster.hpp>
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#include <com/sun/star/xml/crypto/sax/XBlockerMonitor.hpp>
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#include <com/sun/star/xml/crypto/sax/XReferenceCollector.hpp>
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#include <com/sun/star/xml/crypto/sax/XSignatureCreationResultBroadcaster.hpp>
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#include <com/sun/star/io/XActiveDataSource.hpp>
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#include <com/sun/star/embed/StorageFormats.hpp>
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#include <rtl/uuid.h>
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#include "framework/signaturecreatorimpl.hxx"
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#include "framework/saxeventkeeperimpl.hxx"
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using namespace com::sun::star;
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namespace cssu = com::sun::star::uno;
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namespace cssl = com::sun::star::lang;
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namespace cssxc = com::sun::star::xml::crypto;
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namespace cssxs = com::sun::star::xml::sax;
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/* protected: for signature generation */
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OUString XSecController::createId()
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{
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sal_uInt8 aSeq[16];
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rtl_createUuid( aSeq, nullptr, true );
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char str[68]="ID_";
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int length = 3;
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for (sal_uInt8 i : aSeq)
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{
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length += sprintf(str+length, "%04x", i);
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}
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return OUString::createFromAscii(str);
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}
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cssu::Reference< cssxc::sax::XReferenceResolvedListener > XSecController::prepareSignatureToWrite(
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InternalSignatureInformation& internalSignatureInfor,
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sal_Int32 nStorageFormat,
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bool bXAdESCompliantIfODF)
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{
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sal_Int32 nSecurityId = internalSignatureInfor.signatureInfor.nSecurityId;
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SignatureReferenceInformations& vReferenceInfors = internalSignatureInfor.signatureInfor.vSignatureReferenceInfors;
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sal_Int32 nIdOfSignatureElementCollector;
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nIdOfSignatureElementCollector =
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m_xSAXEventKeeper->addSecurityElementCollector( cssxc::sax::ElementMarkPriority_AFTERMODIFY, true );
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m_xSAXEventKeeper->setSecurityId(nIdOfSignatureElementCollector, nSecurityId);
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uno::Reference<xml::crypto::sax::XReferenceResolvedListener> xReferenceResolvedListener(new SignatureCreatorImpl);
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cssu::Reference<cssl::XInitialization> xInitialization(xReferenceResolvedListener, cssu::UNO_QUERY);
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cssu::Sequence<cssu::Any> args(5);
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args[0] <<= OUString::number(nSecurityId);
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args[1] <<= uno::Reference<xml::crypto::sax::XSecuritySAXEventKeeper>(static_cast<cppu::OWeakObject*>(m_xSAXEventKeeper.get()), uno::UNO_QUERY);
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args[2] <<= OUString::number(nIdOfSignatureElementCollector);
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//for nss, the internal module is used for signing, which needs to be improved later
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args[3] <<= m_xSecurityContext->getSecurityEnvironment();
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args[4] <<= m_xXMLSignature;
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xInitialization->initialize(args);
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sal_Int32 nBlockerId = m_xSAXEventKeeper->addBlocker();
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m_xSAXEventKeeper->setSecurityId(nBlockerId, nSecurityId);
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cssu::Reference<cssxc::sax::XBlockerMonitor> xBlockerMonitor(xReferenceResolvedListener, cssu::UNO_QUERY);
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xBlockerMonitor->setBlockerId(nBlockerId);
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cssu::Reference< cssxc::sax::XSignatureCreationResultBroadcaster >
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xSignatureCreationResultBroadcaster(xReferenceResolvedListener, cssu::UNO_QUERY);
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xSignatureCreationResultBroadcaster->addSignatureCreationResultListener( this );
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m_xSAXEventKeeper->addReferenceResolvedListener(
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nIdOfSignatureElementCollector,
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xReferenceResolvedListener);
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cssu::Reference<cssxc::sax::XReferenceCollector> xReferenceCollector
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(xReferenceResolvedListener, cssu::UNO_QUERY);
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int i;
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int size = vReferenceInfors.size();
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sal_Int32 nReferenceCount = 0;
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for(i=0; i<size; ++i)
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{
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sal_Int32 keeperId = internalSignatureInfor.vKeeperIds[i];
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if ( keeperId != -1)
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{
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m_xSAXEventKeeper->setSecurityId(keeperId, nSecurityId);
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m_xSAXEventKeeper->addReferenceResolvedListener( keeperId, xReferenceResolvedListener);
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xReferenceCollector->setReferenceId( keeperId );
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nReferenceCount++;
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}
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}
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xReferenceCollector->setReferenceCount( nReferenceCount );
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/*
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* adds all URI binding
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*/
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cssu::Reference<cssxc::XUriBinding> xUriBinding
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(xReferenceResolvedListener, cssu::UNO_QUERY);
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for(i=0; i<size; ++i)
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{
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const SignatureReferenceInformation& refInfor = vReferenceInfors[i];
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cssu::Reference< css::io::XInputStream > xInputStream
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= getObjectInputStream( refInfor.ouURI );
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if (xInputStream.is())
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{
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xUriBinding->setUriBinding(refInfor.ouURI,xInputStream);
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}
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}
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cssu::Reference<cssxc::sax::XKeyCollector> keyCollector (xReferenceResolvedListener, cssu::UNO_QUERY);
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keyCollector->setKeyId(0);
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const sal_Int32 digestID = bXAdESCompliantIfODF ? cssxc::DigestID::SHA256 : cssxc::DigestID::SHA1;
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if (nStorageFormat != embed::StorageFormats::OFOPXML)
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{
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internalSignatureInfor.signatureInfor.ouSignatureId = createId();
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internalSignatureInfor.signatureInfor.ouPropertyId = createId();
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internalSignatureInfor.addReference(SignatureReferenceType::SAMEDOCUMENT, digestID, internalSignatureInfor.signatureInfor.ouPropertyId, -1 );
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size++;
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if (bXAdESCompliantIfODF)
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{
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internalSignatureInfor.addReference(SignatureReferenceType::SAMEDOCUMENT, digestID, "idSignedProperties", -1);
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size++;
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}
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if (!internalSignatureInfor.signatureInfor.ouDescription.isEmpty())
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{
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// Only mention the hash of the description in the signature if it's non-empty.
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internalSignatureInfor.signatureInfor.ouDescriptionPropertyId = createId();
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internalSignatureInfor.addReference(SignatureReferenceType::SAMEDOCUMENT, digestID, internalSignatureInfor.signatureInfor.ouDescriptionPropertyId, -1);
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size++;
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}
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}
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else
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{
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internalSignatureInfor.addReference(SignatureReferenceType::SAMEDOCUMENT, digestID, "idPackageObject", -1);
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size++;
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internalSignatureInfor.addReference(SignatureReferenceType::SAMEDOCUMENT, digestID, "idOfficeObject", -1);
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size++;
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internalSignatureInfor.addReference(SignatureReferenceType::SAMEDOCUMENT, digestID, "idSignedProperties", -1);
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size++;
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}
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/*
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* replace both digestValues and signatureValue to " "
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*/
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for(i=0; i<size; ++i)
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{
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SignatureReferenceInformation& refInfor = vReferenceInfors[i];
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refInfor.ouDigestValue = " ";
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}
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internalSignatureInfor.signatureInfor.ouSignatureValue = " ";
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return xReferenceResolvedListener;
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}
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void XSecController::signAStream( sal_Int32 securityId, const OUString& uri, bool isBinary, bool bXAdESCompliantIfODF)
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{
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const SignatureReferenceType type = isBinary ? SignatureReferenceType::BINARYSTREAM : SignatureReferenceType::XMLSTREAM;
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const sal_Int32 digestID = bXAdESCompliantIfODF ? cssxc::DigestID::SHA256 : cssxc::DigestID::SHA1;
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int index = findSignatureInfor( securityId );
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if (index == -1)
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{
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InternalSignatureInformation isi(securityId, nullptr);
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isi.addReference(type, digestID, uri, -1);
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m_vInternalSignatureInformations.push_back( isi );
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}
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else
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{
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m_vInternalSignatureInformations[index].addReference(type, digestID, uri, -1);
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}
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}
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void XSecController::setX509Certificate(
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sal_Int32 nSecurityId,
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const OUString& ouX509IssuerName,
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const OUString& ouX509SerialNumber,
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const OUString& ouX509Cert,
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const OUString& ouX509CertDigest)
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{
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int index = findSignatureInfor( nSecurityId );
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if ( index == -1 )
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{
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InternalSignatureInformation isi(nSecurityId, nullptr);
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isi.signatureInfor.ouX509IssuerName = ouX509IssuerName;
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isi.signatureInfor.ouX509SerialNumber = ouX509SerialNumber;
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isi.signatureInfor.ouX509Certificate = ouX509Cert;
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isi.signatureInfor.ouCertDigest = ouX509CertDigest;
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m_vInternalSignatureInformations.push_back( isi );
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}
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else
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{
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SignatureInformation &si
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= m_vInternalSignatureInformations[index].signatureInfor;
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si.ouX509IssuerName = ouX509IssuerName;
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si.ouX509SerialNumber = ouX509SerialNumber;
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si.ouX509Certificate = ouX509Cert;
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si.ouCertDigest = ouX509CertDigest;
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}
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}
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void XSecController::setGpgCertificate(
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sal_Int32 nSecurityId,
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const OUString& ouCertDigest,
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const OUString& ouCert,
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const OUString& ouOwner)
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{
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int index = findSignatureInfor( nSecurityId );
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if ( index == -1 )
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{
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InternalSignatureInformation isi(nSecurityId, nullptr);
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isi.signatureInfor.ouGpgCertificate = ouCert;
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isi.signatureInfor.ouGpgOwner = ouOwner;
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isi.signatureInfor.ouCertDigest = ouCertDigest;
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m_vInternalSignatureInformations.push_back( isi );
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}
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else
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{
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SignatureInformation &si
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= m_vInternalSignatureInformations[index].signatureInfor;
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si.ouGpgCertificate = ouCert;
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si.ouGpgOwner = ouOwner;
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si.ouCertDigest = ouCertDigest;
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}
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}
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void XSecController::setDate(
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sal_Int32 nSecurityId,
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const css::util::DateTime& rDateTime )
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{
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int index = findSignatureInfor( nSecurityId );
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if ( index == -1 )
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{
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InternalSignatureInformation isi(nSecurityId, nullptr);
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isi.signatureInfor.stDateTime = rDateTime;
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m_vInternalSignatureInformations.push_back( isi );
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}
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else
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{
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SignatureInformation &si
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= m_vInternalSignatureInformations[index].signatureInfor;
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si.stDateTime = rDateTime;
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}
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}
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void XSecController::setDescription(sal_Int32 nSecurityId, const OUString& rDescription)
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{
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int nIndex = findSignatureInfor(nSecurityId);
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if (nIndex == -1)
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{
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InternalSignatureInformation aInformation(nSecurityId, nullptr);
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aInformation.signatureInfor.ouDescription = rDescription;
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m_vInternalSignatureInformations.push_back(aInformation);
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}
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else
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{
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SignatureInformation& rInformation = m_vInternalSignatureInformations[nIndex].signatureInfor;
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rInformation.ouDescription = rDescription;
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}
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}
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bool XSecController::WriteSignature(
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const cssu::Reference<cssxs::XDocumentHandler>& xDocumentHandler,
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bool bXAdESCompliantIfODF )
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{
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bool rc = false;
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SAL_WARN_IF( !xDocumentHandler.is(), "xmlsecurity.helper", "I really need a document handler!" );
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/*
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* chain the SAXEventKeeper to the SAX chain
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*/
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chainOn(true);
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if ( m_eStatusOfSecurityComponents == InitializationState::INITIALIZED )
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/*
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* if all security components are ready, add the signature
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* stream.
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*/
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{
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m_bIsSAXEventKeeperSticky = true;
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m_xSAXEventKeeper->setNextHandler(xDocumentHandler);
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try
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{
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/*
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* export the signature template
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*/
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cssu::Reference<cssxs::XDocumentHandler> xSEKHandler(static_cast<cppu::OWeakObject*>(m_xSAXEventKeeper.get()),cssu::UNO_QUERY);
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int i;
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int sigNum = m_vInternalSignatureInformations.size();
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for (i=0; i<sigNum; ++i)
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{
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InternalSignatureInformation &isi = m_vInternalSignatureInformations[i];
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// Prepare the signature creator.
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// 0 is not a documented value of embed::StorageFormats, ugh
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isi.xReferenceResolvedListener = prepareSignatureToWrite( isi, 0, bXAdESCompliantIfODF );
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exportSignature( xSEKHandler, isi.signatureInfor, bXAdESCompliantIfODF );
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}
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m_bIsSAXEventKeeperSticky = false;
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chainOff();
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rc = true;
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}
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catch( cssu::Exception& )
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{
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}
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m_xSAXEventKeeper->setNextHandler( nullptr );
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m_bIsSAXEventKeeperSticky = false;
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}
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return rc;
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}
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bool XSecController::WriteOOXMLSignature(const uno::Reference<embed::XStorage>& xRootStorage, const uno::Reference<xml::sax::XDocumentHandler>& xDocumentHandler)
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{
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bool bRet = false;
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SAL_WARN_IF(!xDocumentHandler.is(), "xmlsecurity.helper", "empty xDocumentHandler reference");
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// Chain the SAXEventKeeper to the SAX chain.
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chainOn(/*bRetrievingLastEvent=*/true);
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if (m_eStatusOfSecurityComponents == InitializationState::INITIALIZED)
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{
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m_bIsSAXEventKeeperSticky = true;
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m_xSAXEventKeeper->setNextHandler(xDocumentHandler);
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try
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{
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// Export the signature template.
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cssu::Reference<xml::sax::XDocumentHandler> xSEKHandler(static_cast<cppu::OWeakObject*>(m_xSAXEventKeeper.get()), uno::UNO_QUERY);
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for (InternalSignatureInformation & rInformation : m_vInternalSignatureInformations)
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{
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// Prepare the signature creator.
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rInformation.xReferenceResolvedListener = prepareSignatureToWrite(rInformation, embed::StorageFormats::OFOPXML, false);
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exportOOXMLSignature(xRootStorage, xSEKHandler, rInformation.signatureInfor);
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}
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m_bIsSAXEventKeeperSticky = false;
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chainOff();
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bRet = true;
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}
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catch(const uno::Exception&)
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{
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}
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m_xSAXEventKeeper->setNextHandler(nullptr);
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m_bIsSAXEventKeeperSticky = false;
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}
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return bRet;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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