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/* -*- 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/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>
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_uInt16 nPrfx,
const OUString& rLocalName,
const Reference<XAttributeList>& xAttrList,
const Reference<XShape>& rxShape)
: SvXMLImportContext(rImport, nPrfx, rLocalName)
{
Reference<beans::XPropertySet> xPropSet(rxShape, UNO_QUERY_THROW);
xPropSet->setPropertyValue("IsSignatureLine", Any(true));
xPropSet->setPropertyValue("SignatureLineId", Any(xAttrList->getValueByName("loext:id")));
xPropSet->setPropertyValue("SignatureLineSuggestedSignerName",
Any(xAttrList->getValueByName("loext:suggested-signer-name")));
xPropSet->setPropertyValue("SignatureLineSuggestedSignerTitle",
Any(xAttrList->getValueByName("loext:suggested-signer-title")));
xPropSet->setPropertyValue("SignatureLineSuggestedSignerEmail",
Any(xAttrList->getValueByName("loext:suggested-signer-email")));
xPropSet->setPropertyValue("SignatureLineSigningInstructions",
Any(xAttrList->getValueByName("loext:signing-instructions")));
bool bShowSignDate = xAttrList->getValueByName("loext:show-sign-date") == GetXMLToken(XML_TRUE);
bool bCanAddComment
= xAttrList->getValueByName("loext:can-add-comment") == GetXMLToken(XML_TRUE);
xPropSet->setPropertyValue("SignatureLineShowSignDate", Any(bShowSignDate));
xPropSet->setPropertyValue("SignatureLineCanAddComment", Any(bCanAddComment));
Reference<XGraphic> xGraphic;
bool bIsSigned(false);
try
{
// Get the document signatures
Reference<XDocumentDigitalSignatures> xSignatures(
security::DocumentDigitalSignatures::createWithVersion(
comphelper::getProcessComponentContext(), "1.2"));
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;
}
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->getValueByName("loext:id");
});
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;
}
// Save unsigned graphic
Reference<XGraphic> xUnsignedGraphic;
xPropSet->getPropertyValue("Graphic") >>= xUnsignedGraphic;
if (xUnsignedGraphic.is())
xPropSet->setPropertyValue("SignatureLineUnsignedImage", Any(xUnsignedGraphic));
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: */
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