lib, gui: Default ignores for new folders (fixes #7428) (#7530)

lib/api/api.go

@@ -313,6 +313,7 @@ func (s *service) Serve(ctx context.Context) error {
 	configBuilder.registerDevice("/rest/config/devices/:id")
 	configBuilder.registerDefaultFolder("/rest/config/defaults/folder")
 	configBuilder.registerDefaultDevice("/rest/config/defaults/device")
+	configBuilder.registerDefaultIgnores("/rest/config/defaults/ignores")
 	configBuilder.registerOptions("/rest/config/options")
 	configBuilder.registerLDAP("/rest/config/ldap")
 	configBuilder.registerGUI("/rest/config/gui")

lib/api/confighandler.go

@@ -229,6 +229,28 @@ func (c *configMuxBuilder) registerDefaultDevice(path string) {
 	})
 }
 
+func (c *configMuxBuilder) registerDefaultIgnores(path string) {
+	c.HandlerFunc(http.MethodGet, path, func(w http.ResponseWriter, _ *http.Request) {
+		sendJSON(w, c.cfg.DefaultIgnores())
+	})
+
+	c.HandlerFunc(http.MethodPut, path, func(w http.ResponseWriter, r *http.Request) {
+		var ignores config.Ignores
+		if err := unmarshalTo(r.Body, &ignores); err != nil {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+		waiter, err := c.cfg.Modify(func(cfg *config.Configuration) {
+			cfg.Defaults.Ignores = ignores
+		})
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		c.finish(w, waiter)
+	})
+}
+
 func (c *configMuxBuilder) registerOptions(path string) {
 	c.HandlerFunc(http.MethodGet, path, func(w http.ResponseWriter, _ *http.Request) {
 		sendJSON(w, c.cfg.Options())