Fix listening on hassio interface

cmd/api/api.go

@@ -54,28 +54,31 @@ func Init() {
 
 	log.Info().Str("addr", cfg.Mod.Listen).Msg("[api] listen")
 
-	s := http.Server{}
-	s.Handler = http.DefaultServeMux // 4th
+	Handler = http.DefaultServeMux // 4th
 
 	if cfg.Mod.Origin == "*" {
-		s.Handler = middlewareCORS(s.Handler) // 3rd
+		Handler = middlewareCORS(Handler) // 3rd
 	}
 
 	if cfg.Mod.Username != "" {
-		s.Handler = middlewareAuth(cfg.Mod.Username, cfg.Mod.Password, s.Handler) // 2nd
+		Handler = middlewareAuth(cfg.Mod.Username, cfg.Mod.Password, Handler) // 2nd
 	}
 
 	if log.Trace().Enabled() {
-		s.Handler = middlewareLog(s.Handler) // 1st
+		Handler = middlewareLog(Handler) // 1st
 	}
 
 	go func() {
+		s := http.Server{}
+		s.Handler = Handler
 		if err = s.Serve(listener); err != nil {
 			log.Fatal().Err(err).Msg("[api] serve")
 		}
 	}()
 }
 
+var Handler http.Handler
+
 // HandleFunc handle pattern with relative path:
 // - "api/streams" => "{basepath}/api/streams"
 // - "/streams"    => "/streams"

cmd/hass/api.go

@@ -6,6 +6,7 @@ import (
 	"github.com/AlexxIT/go2rtc/cmd/api"
 	"github.com/AlexxIT/go2rtc/cmd/streams"
 	"github.com/AlexxIT/go2rtc/cmd/webrtc"
+	"net"
 	"net/http"
 	"net/url"
 	"strings"
@@ -133,6 +134,25 @@ func initAPI() {
 	})
 }
 
+func HassioAddr() string {
+	ints, _ := net.Interfaces()
+
+	for _, i := range ints {
+		if i.Name != "hassio" {
+			continue
+		}
+
+		addrs, _ := i.Addrs()
+		for _, addr := range addrs {
+			if addr, ok := addr.(*net.IPNet); ok {
+				return addr.IP.String()
+			}
+		}
+	}
+
+	return ""
+}
+
 func rtspStream(url string) *streams.Stream {
 	if strings.HasPrefix(url, "rtsp://") {
 		if i := strings.IndexByte(url[7:], '/'); i > 0 {

cmd/hass/hass.go

@@ -17,6 +17,9 @@ import (
 
 func Init() {
 	var conf struct {
+		API struct {
+			Listen string `json:"listen"`
+		} `yaml:"api"`
 		Mod struct {
 			Config string `yaml:"config"`
 		} `yaml:"hass"`
@@ -28,35 +31,68 @@ func Init() {
 
 	initAPI()
 
-	// support load cameras from Hass config file
-	filename := path.Join(conf.Mod.Config, ".storage/core.config_entries")
-	b, err := os.ReadFile(filename)
-	if err != nil {
+	entries := importEntries(conf.Mod.Config)
+	if entries == nil {
+		api.HandleFunc("api/hass", func(w http.ResponseWriter, _ *http.Request) {
+			http.Error(w, "no hass config", http.StatusNotFound)
+		})
 		return
 	}
 
-	storage := new(entries)
-	if err = json.Unmarshal(b, storage); err != nil {
-		return
-	}
-
-	urls := map[string]string{}
-
-	api.HandleFunc("api/hass", func(w http.ResponseWriter, r *http.Request) {
+	api.HandleFunc("api/hass", func(w http.ResponseWriter, _ *http.Request) {
 		var items []api.Stream
-		for name, url := range urls {
+		for name, url := range entries {
 			items = append(items, api.Stream{Name: name, URL: url})
 		}
 		api.ResponseStreams(w, items)
 	})
 
 	streams.HandleFunc("hass", func(url string) (core.Producer, error) {
-		if hurl := urls[url[5:]]; hurl != "" {
+		if hurl := entries[url[5:]]; hurl != "" {
 			return streams.GetProducer(hurl)
 		}
 		return nil, fmt.Errorf("can't get url: %s", url)
 	})
 
+	// for Addon listen on hassio interface, so WebUI feature will work
+	if conf.API.Listen == "127.0.0.1:1984" {
+		if addr := HassioAddr(); addr != "" {
+			addr += ":1984"
+			go func() {
+				log.Info().Str("addr", addr).Msg("[hass] listen")
+				if err := http.ListenAndServe(addr, api.Handler); err != nil {
+					log.Error().Err(err).Caller().Send()
+				}
+			}()
+		}
+	}
+}
+
+func importEntries(config string) map[string]string {
+	// support load cameras from Hass config file
+	filename := path.Join(config, ".storage/core.config_entries")
+	b, err := os.ReadFile(filename)
+	if err != nil {
+		return nil
+	}
+
+	var storage struct {
+		Data struct {
+			Entries []struct {
+				Title   string          `json:"title"`
+				Domain  string          `json:"domain"`
+				Data    json.RawMessage `json:"data"`
+				Options json.RawMessage `json:"options"`
+			} `json:"entries"`
+		} `json:"data"`
+	}
+
+	if err = json.Unmarshal(b, &storage); err != nil {
+		return nil
+	}
+
+	urls := map[string]string{}
+
 	for _, entrie := range storage.Data.Entries {
 		switch entrie.Domain {
 		case "generic":
@@ -102,17 +138,8 @@ func Init() {
 		log.Info().Str("url", "hass:"+entrie.Title).Msg("[hass] load stream")
 		//streams.Get("hass:" + entrie.Title)
 	}
+
+	return urls
 }
 
 var log zerolog.Logger
-
-type entries struct {
-	Data struct {
-		Entries []struct {
-			Title   string          `json:"title"`
-			Domain  string          `json:"domain"`
-			Data    json.RawMessage `json:"data"`
-			Options json.RawMessage `json:"options"`
-		} `json:"entries"`
-	} `json:"data"`
-}