diff --git a/src/fileinfostore/file_info_store.go b/src/fileinfostore/file_info_store.go
index 50e7d22..1f299c2 100644
--- a/src/fileinfostore/file_info_store.go
+++ b/src/fileinfostore/file_info_store.go
@@ -13,6 +13,7 @@ const (
 type IFileInfoStore interface {
 	AddSharing(dirPath string) error
 	DelSharing(dirPath string) error
+	GetSharing(dirPath string) (bool, bool)
 	ListSharings(prefix string) (map[string]bool, error)
 }
 
@@ -47,6 +48,10 @@ func (us *FileInfoStore) DelSharing(dirPath string) error {
 	return us.store.DelBoolIn(SharingNs, dirPath)
 }
 
+func (us *FileInfoStore) GetSharing(dirPath string) (bool, bool) {
+	return us.store.GetBoolIn(SharingNs, dirPath)
+}
+
 func (us *FileInfoStore) ListSharings(prefix string) (map[string]bool, error) {
 	return us.store.ListBoolsByPrefixIn(prefix, SharingNs)
 }
diff --git a/src/fileinfostore/file_info_store_test.go b/src/fileinfostore/file_info_store_test.go
index 848b7f0..df33c06 100644
--- a/src/fileinfostore/file_info_store_test.go
+++ b/src/fileinfostore/file_info_store_test.go
@@ -30,6 +30,10 @@ func TestUserStores(t *testing.T) {
 			if !sharingMap[sharingDir] {
 				t.Fatalf("sharing(%s) not found", sharingDir)
 			}
+			mustTrue, exist := store.GetSharing(sharingDir)
+			if !mustTrue || !exist {
+				t.Fatalf("get sharing(%t %t) should exist", mustTrue, exist)
+			}
 		}
 
 		for _, dirPath := range dirPaths {
@@ -47,6 +51,10 @@ func TestUserStores(t *testing.T) {
 			if sharingMap[dirPath] {
 				t.Fatalf("sharing(%s) should not exist", dirPath)
 			}
+			_, exist := store.GetSharing(dirPath)
+			if exist {
+				t.Fatalf("get sharing(%t) should not exit", exist)
+			}
 		}
 	}