Make ws ping interval configurable

config.example.yml

@@ -35,6 +35,7 @@ server:
 #      - "Authorization"
 #      - "content-type"
   stream:
+    pingperiodseconds: 45 # the interval in which websocket pings will be sent. Only change this value if you know what you are doing.
     allowedorigins: # allowed origins for websocket connections (same origin is always allowed)
 #      - ".+.example.com"
 #      - "otherdomain.com"

config/config.go

@@ -31,7 +31,8 @@ type Configuration struct {
 		}
 		ResponseHeaders map[string]string
 		Stream          struct {
-			AllowedOrigins []string
+			PingPeriodSeconds int `default:"45"`
+			AllowedOrigins    []string
 		}
 		Cors struct {
 			AllowOrigins []string

router/router.go

@@ -25,7 +25,7 @@ func Create(db *database.GormDatabase, vInfo *model.VersionInfo, conf *config.Co
 	g.Use(gin.Logger(), gin.Recovery(), error.Handler(), location.Default())
 	g.NoRoute(error.NotFound())
 
-	streamHandler := stream.New(45*time.Second, 15*time.Second, conf.Server.Stream.AllowedOrigins)
+	streamHandler := stream.New(time.Duration(conf.Server.Stream.PingPeriodSeconds)*time.Second, 15*time.Second, conf.Server.Stream.AllowedOrigins)
 	authentication := auth.Auth{DB: db}
 	messageHandler := api.MessageAPI{Notifier: streamHandler, DB: db}
 	healthHandler := api.HealthAPI{DB: db}