mod ignSignIn to reqSignIn for get attachments

routers/routes/routes.go

@@ -508,7 +508,7 @@ func RegisterRoutes(m *macaron.Macaron) {
 	m.Group("", func() {
 		m.Get("/:username", user.Profile)
 		m.Get("/attachments/:uuid", repo.GetAttachment)
-	}, ignSignIn)
+	}, reqSignIn)
 
 	m.Group("/attachments", func() {
 		m.Post("", repo.UploadAttachment)