1 files changed, 129 insertions, 0 deletions
diff --git a/xmloff/source/draw/SignatureLineContext.cxx b/xmloff/source/draw/SignatureLineContext.cxx
new file mode 100644
index 000000000..497bd8489
--- /dev/null
+++ b/xmloff/source/draw/SignatureLineContext.cxx
@@ -0,0 +1,129 @@
+/* -*- 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>
+
+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));
+
+    // 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;
+    bool bIsSigned(false);
+    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));
+
+        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;
+            }
+
+            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: */