Allow file save from Office and possibly other apps. Enforces RFC4918 section 7.6 Write Locks and COPY/MOVE lock release on move.

patches/002-dav-move-unlock.patch

@@ -0,0 +1,28 @@
+--- a/vendor/github.com/cs3org/reva/v2/internal/http/services/owncloud/ocdav/move.go
++++ b/vendor/github.com/cs3org/reva/v2/internal/http/services/owncloud/ocdav/move.go
+@@ -23,6 +23,7 @@ import (
+ 	"fmt"
+ 	"net/http"
+ 	"path"
++	"time"
+ 
+ 	rpc "github.com/cs3org/go-cs3apis/cs3/rpc/v1beta1"
+ 	provider "github.com/cs3org/go-cs3apis/cs3/storage/provider/v1beta1"
+@@ -330,6 +331,16 @@ func (s *svc) handleMove(ctx context.Context, w http.ResponseWriter, r *http.Req
+ 		return
+ 	}
+ 
++	// Discard the held lock if present
++	// Note: Specifically required by RFC4918 7.6 Write Locks and COPY/MOVE
++	if len(mReq.LockId) != 0 {
++		if err := s.LockSystem.Unlock(ctx, time.Now(), dst, mReq.LockId); err != nil {
++			log.Error().Err(err).Msg("failed to release lock after MOVE")
++			w.WriteHeader(http.StatusInternalServerError)
++			return
++		}
++	}
++
+ 	dstStatRes, err = client.Stat(ctx, dstStatReq)
+ 	if err != nil {
+ 		log.Error().Err(err).Msg("error sending grpc stat request")
+