From a6eb9d5a7cd2dd54ca754c2dc26b885121bb2d5f Mon Sep 17 00:00:00 2001
From: David Christofas <dchristofas@owncloud.com>
Date: Wed, 10 Nov 2021 17:00:42 +0100
Subject: [PATCH] fix nil pointer during propfinds (#2257)

---
 changelog/unreleased/public-share-share-types.md  | 1 +
 internal/http/services/owncloud/ocdav/propfind.go | 6 ++++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/changelog/unreleased/public-share-share-types.md b/changelog/unreleased/public-share-share-types.md
index 6854c32e9d..2980379d35 100644
--- a/changelog/unreleased/public-share-share-types.md
+++ b/changelog/unreleased/public-share-share-types.md
@@ -3,3 +3,4 @@ Enhancement:  Add public link share type to propfind response
 Added share type for public links to propfind responses.
 
 https://github.com/cs3org/reva/pull/2213
+https://github.com/cs3org/reva/pull/2257
diff --git a/internal/http/services/owncloud/ocdav/propfind.go b/internal/http/services/owncloud/ocdav/propfind.go
index 6fc2854f01..7458f378bf 100644
--- a/internal/http/services/owncloud/ocdav/propfind.go
+++ b/internal/http/services/owncloud/ocdav/propfind.go
@@ -777,8 +777,10 @@ func (s *svc) mdToPropResponse(ctx context.Context, pf *propfindXML, md *provide
 						types.WriteString("</oc:share-type>")
 					}
 
-					if _, ok := linkshares[md.Id.OpaqueId]; ok {
-						types.WriteString("<oc:share-type>3</oc:share-type>")
+					if md.Id != nil {
+						if _, ok := linkshares[md.Id.OpaqueId]; ok {
+							types.WriteString("<oc:share-type>3</oc:share-type>")
+						}
 					}
 
 					if types.Len() != 0 {