tdf#108711 GPG key selection should only be possible for ODF >= 1.2 documents

gpg4libre

Change-Id: I6dbdaefddacf55c9381d156ada20cb3f25d4b3cb
Reviewed-on: https://gerrit.libreoffice.org/39263
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>

1 files changed, 19 insertions, 0 deletions

diff --git a/xmlsecurity/source/helper/documentsignaturehelper.cxx b/xmlsecurity/source/helper/documentsignaturehelper.cxx
index 618b69445222..161f36e4ed66 100644
--- a/xmlsecurity/source/helper/documentsignaturehelper.cxx
+++ b/xmlsecurity/source/helper/documentsignaturehelper.cxx
@@ -403,6 +403,25 @@ SignatureStreamHelper DocumentSignatureHelper::OpenSignatureStream(
     return aHelper;
 }
 
+/** Check whether the current file can be signed with GPG (only ODF >= 1.2 can currently) */
+bool DocumentSignatureHelper::CanSignWithGPG(
+    const Reference < css::embed::XStorage >& rxStore,
+    const OUString& sOdfVersion)
+{
+    uno::Reference<container::XNameAccess> xNameAccess(rxStore, uno::UNO_QUERY);
+    if (!xNameAccess.is())
+        throw RuntimeException();
+
+    if (xNameAccess->hasByName("META-INF")) // ODF
+    {
+        return !isODFPre_1_2(sOdfVersion);
+    }
+
+    return false;
+}
+
+
+
 //sElementList contains all files which are expected to be signed. Only those files must me signed,
 //no more, no less.
 //The DocumentSignatureAlgorithm indicates if the document was created with OOo 2.x. Then