cosmetic changes

README.md

@@ -4,7 +4,7 @@ a little container to fix [this bug](https://github.com/jellyfin/jellyfin/issues
 
 ## Usage
 
-it can take a config file as first argument.
+it can take a config file as first argument. if `external_url` is not defined, the JSON response wont include it at all!
 
 ## config example
 
@@ -41,8 +41,8 @@ it can take a config file as first argument.
              networks:
                - nginx_backend
              environment:
-               JELLYFIXER_INTERNAL_URL: http://jellycontainer:8096
+               - JELLYFIXER_INTERNAL_URL=http://jellycontainer:8096
-               JELLYFIXER_EXTERNAL_URL: https://jellyfin.foo.tld
+               - JELLYFIXER_EXTERNAL_URL=https://jellyfin.foo.tld
              labels:
                - "traefik.enable=true"
                - "traefik.http.routers.jellyfixer-secured.rule=Host(`jellyfin.foo.tld`) && Path(`/System/Info/Public`)"

main.go

@@ -24,15 +24,16 @@ type Logic struct {
 
 // PublicInfo Chromecast configuration Payload.
 type PublicInfo struct {
-	ID                     string
+	LocalAddress           string `json:"LocalAddress,omitempty"`
-	LocalAddress           string
+	ServerName             string `json:"ServerName"`
-	OperatingSystem        string
+	Version                string `json:"Version"`
-	ProductName            string
+	ProductName            string `json:"ProductName"`
-	ServerName             string
+	OperatingSystem        string `json:"OperatingSystem"`
-	StartupWizardCompleted bool
+	ID                     string `json:"Id"`
-	Version                string
+	StartupWizardCompleted bool   `json:"StartupWizardCompleted"`
 }
 
+// nolint:funlen
 func (l Logic) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	logger := logginghandler.Logger(r)
 
@@ -64,7 +65,10 @@ func (l Logic) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	logger.Debug().Str("body", string(body)).Msg("read body")
+
 	var jd PublicInfo
+
 	if err := json.Unmarshal(body, &jd); err != nil {
 		logger.Error().Msg(err.Error())
 		http.Error(w, "could not unmarshal body", http.StatusInternalServerError)
@@ -72,9 +76,21 @@ func (l Logic) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	jd.LocalAddress = l.ExternalURL
+	var nd PublicInfo
 
-	nd, err := json.Marshal(jd)
+	nd.ServerName = jd.ServerName
+	nd.Version = jd.Version
+	nd.ProductName = jd.ProductName
+	nd.OperatingSystem = jd.OperatingSystem
+	nd.ID = jd.ID
+	nd.StartupWizardCompleted = jd.StartupWizardCompleted
+
+	// When there is no external url defined, it wont include it in the response.
+	if l.ExternalURL != "" {
+		nd.LocalAddress = l.ExternalURL
+	}
+
+	bd, err := json.Marshal(nd)
 	if err != nil {
 		logger.Error().Msg(err.Error())
 		http.Error(w, "could not marshal body", http.StatusInternalServerError)
@@ -82,7 +98,7 @@ func (l Logic) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	if _, err := w.Write(nd); err != nil {
+	if _, err := w.Write(bd); err != nil {
 		logger.Error().Msg(err.Error())
 	}
 }
@@ -111,10 +127,6 @@ func main() {
 		log.Fatal().Msg("needs key 'internal_url'")
 	}
 
-	if viper.GetString("external_url") == "" {
-		log.Fatal().Msg("needs key 'external_url'")
-	}
-
 	l := Logic{
 		InternalURL: viper.GetString("internal_url"),
 		ExternalURL: viper.GetString("external_url"),