tdf#93389: keep encryption information for autorecovered MS formats

The autorecovery data is stored in ODF, regardless of the original
document format. When restoring, type detection generates ODF data,
which is stored in the media descriptor attached to document, even
after real filter was restored (see AutoRecovery::implts_openDocs).
If real filter is not ODF, then at the save time, it doesn't find
necessary information in encryption data, and makes not encrypted
package.

This patch adds both MS binary data, and OOXML data, to existing
ODF data for recovered password-protected documents (regardless of
their real filter).

TODO: only add required information to encryption data: pass real
filter name to DocPasswordHelper::requestAndVerifyDocPassword from
AutoRecovery::implts_openDocs.

Change-Id: I4749c5ec028ca61bddf7cd77bc5969a97b1de199
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/86201
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
Tested-by: Mike Kaganski <mike.kaganski@collabora.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/sfx2/source/appl/appopen.cxx b/sfx2/source/appl/appopen.cxx
index 66a3a26fc825..357e9e8033f4 100644
--- a/sfx2/source/appl/appopen.cxx
+++ b/sfx2/source/appl/appopen.cxx
@@ -234,6 +234,18 @@ ErrCode CheckPasswd_Impl
                             if ( !aEncryptionData.hasElements() && aGpgProperties.hasElements() )
                                 aEncryptionData = ::comphelper::DocPasswordHelper::decryptGpgSession(aGpgProperties);
 
+                            // tdf#93389: if recoverying a document, encryption data should contain
+                            // entries for the real filter, not only for recovery ODF, to keep it
+                            // encrypted. Pass this in encryption data.
+                            // TODO: pass here the real filter (from AutoRecovery::implts_openDocs)
+                            // to marshal this to requestAndVerifyDocPassword
+                            if (pSet->GetItemState(SID_DOC_SALVAGE, false) == SfxItemState::SET)
+                            {
+                                aEncryptionData = comphelper::concatSequences(
+                                    aEncryptionData, std::initializer_list<beans::NamedValue>{
+                                                         { "ForSalvage", css::uno::Any(true) } });
+                            }
+
                             SfxDocPasswordVerifier aVerifier( xStorage );
                             aEncryptionData = ::comphelper::DocPasswordHelper::requestAndVerifyDocPassword(
                                 aVerifier, aEncryptionData, aPassword, xInteractionHandler, pFile->GetOrigURL(), comphelper::DocPasswordRequestType::Standard );