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Diffstat (limited to '')
| -rw-r--r-- | xmloff/source/draw/SignatureLineContext.cxx | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/xmloff/source/draw/SignatureLineContext.cxx b/xmloff/source/draw/SignatureLineContext.cxx new file mode 100644 index 000000000..0217156e3 --- /dev/null +++ b/xmloff/source/draw/SignatureLineContext.cxx @@ -0,0 +1,136 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ +/* + * 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/. + */ + +#include "SignatureLineContext.hxx" + +#include <com/sun/star/beans/XPropertySet.hpp> +#include <com/sun/star/embed/XStorage.hpp> +#include <com/sun/star/frame/XModel.hpp> +#include <com/sun/star/frame/XStorable.hpp> +#include <com/sun/star/graphic/XGraphic.hpp> +#include <com/sun/star/security/DocumentDigitalSignatures.hpp> +#include <com/sun/star/security/XDocumentDigitalSignatures.hpp> +#include <com/sun/star/xml/sax/XAttributeList.hpp> + +#include <sal/log.hxx> +#include <comphelper/processfactory.hxx> +#include <comphelper/storagehelper.hxx> +#include <xmloff/xmltoken.hxx> +#include <xmloff/xmlimp.hxx> +#include <xmloff/xmlnamespace.hxx> + +using namespace css; +using namespace css::xml::sax; +using namespace css::uno; +using namespace css::drawing; +using namespace css::embed; +using namespace css::frame; +using namespace css::io; +using namespace css::graphic; +using namespace css::security; +using namespace xmloff::token; + +SignatureLineContext::SignatureLineContext(SvXMLImport& rImport, sal_Int32 /*nElement*/, + const Reference<XFastAttributeList>& xAttrList, + const Reference<XShape>& rxShape) + : SvXMLImportContext(rImport) +{ + Reference<beans::XPropertySet> xPropSet(rxShape, UNO_QUERY_THROW); + + xPropSet->setPropertyValue("IsSignatureLine", Any(true)); + + xPropSet->setPropertyValue("SignatureLineId", + Any(xAttrList->getOptionalValue(XML_ELEMENT(LO_EXT, XML_ID)))); + xPropSet->setPropertyValue( + "SignatureLineSuggestedSignerName", + Any(xAttrList->getOptionalValue(XML_ELEMENT(LO_EXT, XML_SUGGESTED_SIGNER_NAME)))); + xPropSet->setPropertyValue( + "SignatureLineSuggestedSignerTitle", + Any(xAttrList->getOptionalValue(XML_ELEMENT(LO_EXT, XML_SUGGESTED_SIGNER_TITLE)))); + xPropSet->setPropertyValue( + "SignatureLineSuggestedSignerEmail", + Any(xAttrList->getOptionalValue(XML_ELEMENT(LO_EXT, XML_SUGGESTED_SIGNER_EMAIL)))); + xPropSet->setPropertyValue( + "SignatureLineSigningInstructions", + Any(xAttrList->getOptionalValue(XML_ELEMENT(LO_EXT, XML_SIGNING_INSTRUCTIONS)))); + + bool bShowSignDate = xAttrList->getOptionalValue(XML_ELEMENT(LO_EXT, XML_SHOW_SIGN_DATE)) + == GetXMLToken(XML_TRUE); + bool bCanAddComment = xAttrList->getOptionalValue(XML_ELEMENT(LO_EXT, XML_CAN_ADD_COMMENT)) + == GetXMLToken(XML_TRUE); + xPropSet->setPropertyValue("SignatureLineShowSignDate", Any(bShowSignDate)); + xPropSet->setPropertyValue("SignatureLineCanAddComment", Any(bCanAddComment)); + + // Save unsigned graphic (need it when exporting) + Reference<XGraphic> xUnsignedGraphic; + xPropSet->getPropertyValue("Graphic") >>= xUnsignedGraphic; + if (xUnsignedGraphic.is()) + xPropSet->setPropertyValue("SignatureLineUnsignedImage", Any(xUnsignedGraphic)); + + Reference<XGraphic> xGraphic; + try + { + // Get the document signatures + css::uno::Reference<XStorable> xStorable(GetImport().GetModel(), UNO_QUERY_THROW); + Reference<XStorage> xStorage = comphelper::OStorageHelper::GetStorageOfFormatFromURL( + ZIP_STORAGE_FORMAT_STRING, xStorable->getLocation(), ElementModes::READ); + + if (!xStorage.is()) + { + SAL_WARN("xmloff", "No xStorage!"); + return; + } + + OUString const aODFVersion(comphelper::OStorageHelper::GetODFVersionFromStorage(xStorage)); + Reference<XDocumentDigitalSignatures> xSignatures( + security::DocumentDigitalSignatures::createWithVersion( + comphelper::getProcessComponentContext(), aODFVersion)); + + const Sequence<DocumentSignatureInformation> xSignatureInfo + = xSignatures->verifyDocumentContentSignatures(xStorage, Reference<XInputStream>()); + + // Try to find matching signature line image - if none exists that is fine, + // then the signature line is not digitally signed. + auto pSignatureInfo + = std::find_if(xSignatureInfo.begin(), xSignatureInfo.end(), + [&xAttrList](const DocumentSignatureInformation& rSignatureInfo) { + return rSignatureInfo.SignatureLineId + == xAttrList->getOptionalValue(XML_ELEMENT(LO_EXT, XML_ID)); + }); + bool bIsSigned(false); + if (pSignatureInfo != xSignatureInfo.end()) + { + bIsSigned = true; + if (pSignatureInfo->SignatureIsValid) + { + // Signature is valid, use the 'valid' image + SAL_WARN_IF(!pSignatureInfo->ValidSignatureLineImage.is(), "xmloff", + "No ValidSignatureLineImage!"); + xGraphic = pSignatureInfo->ValidSignatureLineImage; + } + else + { + // Signature is invalid, use the 'invalid' image + SAL_WARN_IF(!pSignatureInfo->InvalidSignatureLineImage.is(), "xmloff", + "No InvalidSignatureLineImage!"); + xGraphic = pSignatureInfo->InvalidSignatureLineImage; + } + + xPropSet->setPropertyValue("Graphic", Any(xGraphic)); + } + xPropSet->setPropertyValue("SignatureLineIsSigned", Any(bIsSigned)); + } + catch (css::uno::Exception&) + { + // DocumentDigitalSignatures service not available. + // We render the "unsigned" shape instead. + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */ |