fix malformed uid string in getter

Signed-off-by: Christian Richter <[email protected]>

changelog/unreleased/fix-malformed-uid-string.md

@@ -0,0 +1,9 @@
+Bugfix: Fix malformed uid string in cache
+
+The rediscache returns a uid in the format of `<tablename>uid:<someuid>` in the getter
+this results in issues when trying to delete the key from the cache store, because
+the Delete function will prepend the table name to the string which will not be resolvable in redis
+(e.g. `<tablename><tablename>uid:<somuid>`)
+
+https://github.com/cs3org/reva/pull/3338
+https://github.com/owncloud/ocis/issues/4772

pkg/storage/cache/cache.go

@@ -198,7 +198,14 @@ func (cache cacheStore) List(opts ...microstore.ListOption) ([]string, error) {
 		microstore.ListFrom(cache.database, cache.table),
 	}
 	o = append(o, opts...)
-	return cache.s.List(o...)
+	keys, err := cache.s.List(o...)
+	if err != nil {
+		return nil, err
+	}
+	for i, key := range keys {
+		keys[i] = strings.TrimPrefix(key, cache.table)
+	}
+	return keys, nil
 }
 
 // Delete deletes the given key on the configured database and table of the underlying store