fix: set default host to undefined (#3362)

.env.app.example

@@ -1,4 +1,4 @@
-# The host address to bind to. Default is `::`
+# The host address to bind to
 # HOST="::"
 # The port to listen to for incoming requests. Default is `8091`
 # PORT=8091

app.ts

@@ -170,7 +170,7 @@ let restarting = false
 /**
  * Start http/https server and all the manager
  */
-export async function startServer(host: string, port: number | string) {
+export async function startServer(port: number | string, host?: string) {
 	let server: HttpServer
 
 	const settings = jsonStore.get(store.settings)
@@ -215,7 +215,7 @@ export async function startServer(host: string, port: number | string) {
 		const bind =
 			typeof addr === 'string' ? 'pipe ' + addr : 'port ' + addr?.port
 		logger.info(
-			`Listening on ${bind} host ${host} protocol ${
+			`Listening on ${bind}${host ? 'host ' + host : ''} protocol ${
 				httpsEnabled ? 'HTTPS' : 'HTTP'
 			}`,
 		)

bin/www.ts

@@ -46,7 +46,7 @@ jsonStore
 		const port = normalizePort(conf.port)
 		app.set('port', port)
 
-		return startServer(conf.host, port)
+		return startServer(port, conf.host)
 	})
 	.catch((err: unknown) => {
 		console.error(err)

config/app.ts

@@ -21,4 +21,4 @@ export const defaultPsw: string =  'zwave'
 export const sessionSecret: string =  process.env.SESSION_SECRET || 'DEFAULT_SESSION_SECRET_CHANGE_ME'
 export const base: string =  process.env.BASE_PATH || '/'
 export const port: string | number =  process.env.PORT || 8091
-export const host: string =  process.env.HOST || '::'
+export const host: string =  process.env.HOST // by default undefined, so it will listen on all interfaces both ipv4 and ipv6

docs/guide/env-vars.md

@@ -15,7 +15,7 @@ This is the list of the supported environment variables:
 - `SESSION_SECRET`: Used as secret for session. If not provided the default one is used
 - `USE_SECURE_COOKIE`: Set the cookie [secure](https://github.com/expressjs/session#cookiesecure) option.
 - `PORT`: The port to listen to for incoming requests. Default is `8091`
-- `HOST`: The host address to bind to. Default is `::`
+- `HOST`: The host address to bind to. Keep it empty to bind to all interfaces both IPv4 and IPv6
 - `STORE_DIR`: The absolute path to the directory where all files will be stored. Default is `<path to your zui dir>/store`
 - `BACKUPS_DIR`: The absolute path to the directory where all backups files will be stored. Default is `<path to your zui dir>/store/backups`
 - `ZWAVEJS_EXTERNAL_CONFIG`: Mostly needed for docker users, it's the path to the folder used by Z-Wave JS to [store config database](https://zwave-js.github.io/node-zwave-js/#/usage/external-config?id=specifying-an-external-config-db-location), by default on docker it is `/usr/src/app/store/.config-db`. For users that are using a custom `STORE_DIR` this must be changed too.

src/views/Settings.vue

@@ -1233,7 +1233,7 @@
 										<v-text-field
 											v-model="newZwave.serverHost"
 											label="Server Host"
-											hint="(Optional) The host to bind the Z-Wave Server. Default is: ::"
+											hint="(Optional) The host to bind the Z-Wave Server"
 										></v-text-field>
 									</v-col>
 									<v-col