func Main() {
var configFile string
var port string
var address string
var debug bool
var name string
var web bool
var webPath string
var engn string
var logLevel string
var logFile string
var insecure bool
var insecureAPI bool
var useSSL bool
var sslCert string
var sslKey string
var redisHost string
var redisPort string
var redisPassword string
var redisDB string
var redisURL string
var redisAPI bool
var redisPool int
var rootCmd = &cobra.Command{
Use: "",
Short: "Centrifugo",
Long: "Centrifugo. Real-time messaging (Websockets or SockJS) server in Go.",
Run: func(cmd *cobra.Command, args []string) {
viper.SetDefault("gomaxprocs", 0)
viper.SetDefault("debug", false)
viper.SetDefault("prefix", "")
viper.SetDefault("web", false)
viper.SetDefault("web_path", "")
viper.SetDefault("web_password", "")
viper.SetDefault("web_secret", "")
viper.SetDefault("max_channel_length", 255)
viper.SetDefault("channel_prefix", "centrifugo")
viper.SetDefault("node_ping_interval", 5)
viper.SetDefault("message_send_timeout", 0)
viper.SetDefault("ping_interval", 25)
viper.SetDefault("node_metrics_interval", 60)
viper.SetDefault("stale_connection_close_delay", 25)
viper.SetDefault("expired_connection_close_delay", 25)
viper.SetDefault("max_client_queue_size", 10485760) // 10MB
viper.SetDefault("presence_ping_interval", 25)
viper.SetDefault("presence_expire_interval", 60)
viper.SetDefault("private_channel_prefix", "$")
viper.SetDefault("namespace_channel_boundary", ":")
viper.SetDefault("user_channel_boundary", "#")
viper.SetDefault("user_channel_separator", ",")
viper.SetDefault("client_channel_boundary", "&")
viper.SetDefault("sockjs_url", "https://cdn.jsdelivr.net/sockjs/1.0/sockjs.min.js")
viper.SetDefault("secret", "")
viper.SetDefault("connection_lifetime", 0)
viper.SetDefault("watch", false)
viper.SetDefault("publish", false)
viper.SetDefault("anonymous", false)
viper.SetDefault("presence", false)
viper.SetDefault("history_size", 0)
viper.SetDefault("history_lifetime", 0)
viper.SetDefault("namespaces", "")
viper.SetEnvPrefix("centrifugo")
viper.BindEnv("debug")
viper.BindEnv("engine")
viper.BindEnv("insecure")
viper.BindEnv("insecure_api")
viper.BindEnv("web")
viper.BindEnv("web_password")
viper.BindEnv("web_secret")
viper.BindEnv("secret")
viper.BindEnv("connection_lifetime")
viper.BindEnv("watch")
viper.BindEnv("publish")
viper.BindEnv("anonymous")
viper.BindEnv("join_leave")
viper.BindEnv("presence")
viper.BindEnv("history_size")
viper.BindEnv("history_lifetime")
viper.BindPFlag("port", cmd.Flags().Lookup("port"))
viper.BindPFlag("address", cmd.Flags().Lookup("address"))
viper.BindPFlag("debug", cmd.Flags().Lookup("debug"))
viper.BindPFlag("name", cmd.Flags().Lookup("name"))
viper.BindPFlag("web", cmd.Flags().Lookup("web"))
viper.BindPFlag("web_path", cmd.Flags().Lookup("web_path"))
viper.BindPFlag("engine", cmd.Flags().Lookup("engine"))
viper.BindPFlag("insecure", cmd.Flags().Lookup("insecure"))
viper.BindPFlag("insecure_api", cmd.Flags().Lookup("insecure_api"))
viper.BindPFlag("ssl", cmd.Flags().Lookup("ssl"))
viper.BindPFlag("ssl_cert", cmd.Flags().Lookup("ssl_cert"))
viper.BindPFlag("ssl_key", cmd.Flags().Lookup("ssl_key"))
viper.BindPFlag("log_level", cmd.Flags().Lookup("log_level"))
viper.BindPFlag("log_file", cmd.Flags().Lookup("log_file"))
viper.BindPFlag("redis_host", cmd.Flags().Lookup("redis_host"))
viper.BindPFlag("redis_port", cmd.Flags().Lookup("redis_port"))
viper.BindPFlag("redis_password", cmd.Flags().Lookup("redis_password"))
viper.BindPFlag("redis_db", cmd.Flags().Lookup("redis_db"))
viper.BindPFlag("redis_url", cmd.Flags().Lookup("redis_url"))
viper.BindPFlag("redis_api", cmd.Flags().Lookup("redis_api"))
viper.BindPFlag("redis_pool", cmd.Flags().Lookup("redis_pool"))
viper.SetConfigFile(configFile)
logger.INFO.Printf("Centrifugo version: %s", VERSION)
logger.INFO.Printf("Process PID: %d", os.Getpid())
absConfPath, err := filepath.Abs(configFile)
if err != nil {
logger.FATAL.Fatalln(err)
}
logger.INFO.Println("Config file search path:", absConfPath)
err = viper.ReadInConfig()
if err != nil {
switch err.(type) {
case viper.ConfigParseError:
logger.FATAL.Fatalf("Error parsing configuration: %s\n", err)
default:
logger.WARN.Println("No config file found")
}
}
setupLogging()
if os.Getenv("GOMAXPROCS") == "" {
if viper.IsSet("gomaxprocs") && viper.GetInt("gomaxprocs") > 0 {
runtime.GOMAXPROCS(viper.GetInt("gomaxprocs"))
} else {
runtime.GOMAXPROCS(runtime.NumCPU())
}
}
logger.INFO.Println("GOMAXPROCS:", runtime.GOMAXPROCS(0))
c := newConfig()
err = c.Validate()
if err != nil {
logger.FATAL.Fatalln(err)
}
app, err := libcentrifugo.NewApplication(c)
if err != nil {
logger.FATAL.Fatalln(err)
}
if c.Insecure {
logger.WARN.Println("application running in INSECURE client mode")
}
if c.InsecureAPI {
logger.WARN.Println("application running in INSECURE API mode")
}
var e libcentrifugo.Engine
switch viper.GetString("engine") {
case "memory":
e = libcentrifugo.NewMemoryEngine(app)
case "redis":
e = libcentrifugo.NewRedisEngine(
app,
viper.GetString("redis_host"),
viper.GetString("redis_port"),
viper.GetString("redis_password"),
viper.GetString("redis_db"),
viper.GetString("redis_url"),
viper.GetBool("redis_api"),
viper.GetInt("redis_pool"),
)
default:
logger.FATAL.Fatalln("Unknown engine: " + viper.GetString("engine"))
}
logger.INFO.Println("Engine:", viper.GetString("engine"))
logger.DEBUG.Printf("%v\n", viper.AllSettings())
logger.INFO.Println("Use SSL:", viper.GetBool("ssl"))
if viper.GetBool("ssl") {
if viper.GetString("ssl_cert") == "" {
logger.FATAL.Println("No SSL certificate provided")
os.Exit(1)
}
if viper.GetString("ssl_key") == "" {
logger.FATAL.Println("No SSL certificate key provided")
os.Exit(1)
}
}
app.SetEngine(e)
err = app.Run()
if err != nil {
logger.FATAL.Fatalln(err)
}
go handleSignals(app)
sockjsOpts := sockjs.DefaultOptions
// Override sockjs url. It's important to use the same SockJS library version
// on client and server sides, otherwise SockJS will report version mismatch
// and won't work.
sockjsUrl := viper.GetString("sockjs_url")
if sockjsUrl != "" {
logger.INFO.Println("SockJS url:", sockjsUrl)
sockjsOpts.SockJSURL = sockjsUrl
}
if c.PingInterval < time.Second {
logger.FATAL.Fatalln("Ping interval can not be less than one second.")
}
sockjsOpts.HeartbeatDelay = c.PingInterval
var webFS http.FileSystem
if viper.GetBool("web") {
webFS = assetFS()
}
muxOpts := libcentrifugo.MuxOptions{
Prefix: viper.GetString("prefix"),
Web: viper.GetBool("web"),
WebPath: viper.GetString("web_path"),
WebFS: webFS,
SockjsOptions: sockjsOpts,
}
mux := libcentrifugo.DefaultMux(app, muxOpts)
addr := net.JoinHostPort(viper.GetString("address"), viper.GetString("port"))
logger.INFO.Printf("Start serving on %s\n", addr)
if useSSL {
if err := http.ListenAndServeTLS(addr, sslCert, sslKey, mux); err != nil {
logger.FATAL.Fatalln("ListenAndServe:", err)
}
} else {
if err := http.ListenAndServe(addr, mux); err != nil {
logger.FATAL.Fatalln("ListenAndServe:", err)
}
}
},
}
rootCmd.Flags().StringVarP(&port, "port", "p", "8000", "port to bind to")
rootCmd.Flags().StringVarP(&address, "address", "a", "", "address to listen on")
rootCmd.Flags().BoolVarP(&debug, "debug", "d", false, "debug mode - please, do not use it in production")
rootCmd.Flags().StringVarP(&configFile, "config", "c", "config.json", "path to config file")
rootCmd.Flags().StringVarP(&name, "name", "n", "", "unique node name")
rootCmd.Flags().BoolVarP(&web, "web", "w", false, "serve admin web interface application")
rootCmd.Flags().StringVarP(&webPath, "web_path", "", "", "optional path to web interface application")
rootCmd.Flags().StringVarP(&engn, "engine", "e", "memory", "engine to use: memory or redis")
rootCmd.Flags().BoolVarP(&insecure, "insecure", "", false, "start in insecure client mode")
rootCmd.Flags().BoolVarP(&insecureAPI, "insecure_api", "", false, "use insecure API mode")
rootCmd.Flags().BoolVarP(&useSSL, "ssl", "", false, "accept SSL connections. This requires an X509 certificate and a key file")
rootCmd.Flags().StringVarP(&sslCert, "ssl_cert", "", "", "path to an X509 certificate file")
rootCmd.Flags().StringVarP(&sslKey, "ssl_key", "", "", "path to an X509 certificate key")
rootCmd.Flags().StringVarP(&logLevel, "log_level", "", "info", "set the log level: debug, info, error, critical, fatal or none")
rootCmd.Flags().StringVarP(&logFile, "log_file", "", "", "optional log file - if not specified all logs go to STDOUT")
rootCmd.Flags().StringVarP(&redisHost, "redis_host", "", "127.0.0.1", "redis host (Redis engine)")
rootCmd.Flags().StringVarP(&redisPort, "redis_port", "", "6379", "redis port (Redis engine)")
rootCmd.Flags().StringVarP(&redisPassword, "redis_password", "", "", "redis auth password (Redis engine)")
rootCmd.Flags().StringVarP(&redisDB, "redis_db", "", "0", "redis database (Redis engine)")
rootCmd.Flags().StringVarP(&redisURL, "redis_url", "", "", "redis connection URL (Redis engine)")
rootCmd.Flags().BoolVarP(&redisAPI, "redis_api", "", false, "enable Redis API listener (Redis engine)")
rootCmd.Flags().IntVarP(&redisPool, "redis_pool", "", 256, "Redis pool size (Redis engine)")
var versionCmd = &cobra.Command{
Use: "version",
Short: "Centrifugo version number",
Long: `Print the version number of Centrifugo`,
Run: func(cmd *cobra.Command, args []string) {
fmt.Printf("Centrifugo v%s\n", VERSION)
},
}
var checkConfigFile string
var checkConfigCmd = &cobra.Command{
Use: "checkconfig",
Short: "Check configuration file",
Long: `Check Centrifugo configuration file`,
Run: func(cmd *cobra.Command, args []string) {
err := validateConfig(checkConfigFile)
if err != nil {
logger.FATAL.Fatalln(err)
}
},
}
checkConfigCmd.Flags().StringVarP(&checkConfigFile, "config", "c", "config.json", "path to config file to check")
var outputConfigFile string
var generateConfigCmd = &cobra.Command{
Use: "genconfig",
Short: "Generate simple configuration file to start with",
Long: `Generate simple configuration file to start with`,
Run: func(cmd *cobra.Command, args []string) {
err := generateConfig(outputConfigFile)
if err != nil {
logger.FATAL.Fatalln(err)
}
},
}
generateConfigCmd.Flags().StringVarP(&outputConfigFile, "config", "c", "config.json", "path to output config file")
rootCmd.AddCommand(versionCmd)
rootCmd.AddCommand(checkConfigCmd)
rootCmd.AddCommand(generateConfigCmd)
rootCmd.Execute()
}
// Main runs Centrifugo as a service.
func Main() {
var port string
var address string
var debug bool
var name string
var web string
var engn string
var logLevel string
var logFile string
var insecure bool
var useSSL bool
var sslCert string
var sslKey string
var redisHost string
var redisPort string
var redisPassword string
var redisDB string
var redisURL string
var redisAPI bool
var redisPool int
var rootCmd = &cobra.Command{
Use: "",
Short: "Centrifugo",
Long: "Centrifuge + GO = Centrifugo – harder, better, faster, stronger",
Run: func(cmd *cobra.Command, args []string) {
viper.SetDefault("gomaxprocs", 0)
viper.SetDefault("prefix", "")
viper.SetDefault("web_password", "")
viper.SetDefault("web_secret", "")
viper.RegisterAlias("cookie_secret", "web_secret")
viper.SetDefault("max_channel_length", 255)
viper.SetDefault("channel_prefix", "centrifugo")
viper.SetDefault("node_ping_interval", 5)
viper.SetDefault("message_send_timeout", 60)
viper.SetDefault("expired_connection_close_delay", 10)
viper.SetDefault("presence_ping_interval", 25)
viper.SetDefault("presence_expire_interval", 60)
viper.SetDefault("private_channel_prefix", "$")
viper.SetDefault("namespace_channel_boundary", ":")
viper.SetDefault("user_channel_boundary", "#")
viper.SetDefault("user_channel_separator", ",")
viper.SetDefault("client_channel_boundary", "&")
viper.SetDefault("sockjs_url", "https://cdn.jsdelivr.net/sockjs/1.0/sockjs.min.js")
viper.SetDefault("project_name", "")
viper.SetDefault("project_secret", "")
viper.SetDefault("project_connection_lifetime", false)
viper.SetDefault("project_watch", false)
viper.SetDefault("project_publish", false)
viper.SetDefault("project_anonymous", false)
viper.SetDefault("project_presence", false)
viper.SetDefault("project_history_size", 0)
viper.SetDefault("project_history_lifetime", 0)
viper.SetDefault("project_namespaces", "")
viper.SetEnvPrefix("centrifugo")
viper.BindEnv("engine")
viper.BindEnv("insecure")
viper.BindEnv("web_password")
viper.BindEnv("web_secret")
viper.BindEnv("project_name")
viper.BindEnv("project_secret")
viper.BindEnv("project_connection_lifetime")
viper.BindEnv("project_watch")
viper.BindEnv("project_publish")
viper.BindEnv("project_anonymous")
viper.BindEnv("project_join_leave")
viper.BindEnv("project_presence")
viper.BindEnv("project_history_size")
viper.BindEnv("project_history_lifetime")
viper.BindPFlag("port", cmd.Flags().Lookup("port"))
viper.BindPFlag("address", cmd.Flags().Lookup("address"))
viper.BindPFlag("debug", cmd.Flags().Lookup("debug"))
viper.BindPFlag("name", cmd.Flags().Lookup("name"))
viper.BindPFlag("web", cmd.Flags().Lookup("web"))
viper.BindPFlag("engine", cmd.Flags().Lookup("engine"))
viper.BindPFlag("insecure", cmd.Flags().Lookup("insecure"))
viper.BindPFlag("ssl", cmd.Flags().Lookup("ssl"))
viper.BindPFlag("ssl_cert", cmd.Flags().Lookup("ssl_cert"))
viper.BindPFlag("ssl_key", cmd.Flags().Lookup("ssl_key"))
viper.BindPFlag("log_level", cmd.Flags().Lookup("log_level"))
viper.BindPFlag("log_file", cmd.Flags().Lookup("log_file"))
viper.BindPFlag("redis_host", cmd.Flags().Lookup("redis_host"))
viper.BindPFlag("redis_port", cmd.Flags().Lookup("redis_port"))
viper.BindPFlag("redis_password", cmd.Flags().Lookup("redis_password"))
viper.BindPFlag("redis_db", cmd.Flags().Lookup("redis_db"))
viper.BindPFlag("redis_url", cmd.Flags().Lookup("redis_url"))
viper.BindPFlag("redis_api", cmd.Flags().Lookup("redis_api"))
viper.BindPFlag("redis_pool", cmd.Flags().Lookup("redis_pool"))
err := validateConfig(configFile)
if err != nil {
logger.FATAL.Fatalln(err)
}
viper.SetConfigFile(configFile)
err = viper.ReadInConfig()
if err != nil {
logger.FATAL.Fatalln("unable to locate config file")
}
setupLogging()
if os.Getenv("GOMAXPROCS") == "" {
if viper.IsSet("gomaxprocs") && viper.GetInt("gomaxprocs") > 0 {
runtime.GOMAXPROCS(viper.GetInt("gomaxprocs"))
} else {
runtime.GOMAXPROCS(runtime.NumCPU())
}
}
logger.INFO.Println("GOMAXPROCS set to", runtime.GOMAXPROCS(0))
logger.INFO.Println("using config file:", viper.ConfigFileUsed())
c := newConfig()
s := structureFromConfig(nil)
app, err := libcentrifugo.NewApplication(c)
if err != nil {
logger.FATAL.Fatalln(err)
}
app.SetStructure(s)
var e libcentrifugo.Engine
switch viper.GetString("engine") {
case "memory":
e = libcentrifugo.NewMemoryEngine(app)
case "redis":
e = libcentrifugo.NewRedisEngine(
app,
viper.GetString("redis_host"),
viper.GetString("redis_port"),
viper.GetString("redis_password"),
viper.GetString("redis_db"),
viper.GetString("redis_url"),
viper.GetBool("redis_api"),
viper.GetInt("redis_pool"),
)
default:
logger.FATAL.Fatalln("unknown engine: " + viper.GetString("engine"))
}
logger.INFO.Println("engine:", viper.GetString("engine"))
logger.DEBUG.Printf("%v\n", viper.AllSettings())
logger.INFO.Println("Use SSL:", viper.GetBool("ssl"))
if viper.GetBool("ssl") {
if viper.GetString("ssl_cert") == "" {
logger.FATAL.Println("No SSL certificate provided")
os.Exit(1)
}
if viper.GetString("ssl_key") == "" {
logger.FATAL.Println("No SSL certificate key provided")
os.Exit(1)
}
}
app.SetEngine(e)
app.Run()
go handleSignals(app)
mux := libcentrifugo.DefaultMux(app, viper.GetString("prefix"), viper.GetString("web"), viper.GetString("sockjs_url"))
addr := viper.GetString("address") + ":" + viper.GetString("port")
logger.INFO.Printf("start serving on %s\n", addr)
if useSSL {
if err := http.ListenAndServeTLS(addr, sslCert, sslKey, mux); err != nil {
logger.FATAL.Fatalln("ListenAndServe:", err)
}
} else {
if err := http.ListenAndServe(addr, mux); err != nil {
logger.FATAL.Fatalln("ListenAndServe:", err)
}
}
},
}
rootCmd.Flags().StringVarP(&port, "port", "p", "8000", "port to bind to")
rootCmd.Flags().StringVarP(&address, "address", "a", "", "address to listen on")
rootCmd.Flags().BoolVarP(&debug, "debug", "d", false, "debug mode - please, do not use it in production")
rootCmd.Flags().StringVarP(&configFile, "config", "c", "config.json", "path to config file")
rootCmd.Flags().StringVarP(&name, "name", "n", "", "unique node name")
rootCmd.Flags().StringVarP(&web, "web", "w", "", "optional path to web interface application")
rootCmd.Flags().StringVarP(&engn, "engine", "e", "memory", "engine to use: memory or redis")
rootCmd.Flags().BoolVarP(&insecure, "insecure", "", false, "start in insecure mode")
rootCmd.Flags().BoolVarP(&useSSL, "ssl", "", false, "accept SSL connections. This requires an X509 certificate and a key file")
rootCmd.Flags().StringVarP(&sslCert, "ssl_cert", "", "", "path to an X509 certificate file")
rootCmd.Flags().StringVarP(&sslKey, "ssl_key", "", "", "path to an X509 certificate key")
rootCmd.Flags().StringVarP(&logLevel, "log_level", "", "info", "set the log level: debug, info, error, critical, fatal or none")
rootCmd.Flags().StringVarP(&logFile, "log_file", "", "", "optional log file - if not specified all logs go to STDOUT")
rootCmd.Flags().StringVarP(&redisHost, "redis_host", "", "127.0.0.1", "redis host (Redis engine)")
rootCmd.Flags().StringVarP(&redisPort, "redis_port", "", "6379", "redis port (Redis engine)")
rootCmd.Flags().StringVarP(&redisPassword, "redis_password", "", "", "redis auth password (Redis engine)")
rootCmd.Flags().StringVarP(&redisDB, "redis_db", "", "0", "redis database (Redis engine)")
rootCmd.Flags().StringVarP(&redisURL, "redis_url", "", "", "redis connection URL (Redis engine)")
rootCmd.Flags().BoolVarP(&redisAPI, "redis_api", "", false, "enable Redis API listener (Redis engine)")
rootCmd.Flags().IntVarP(&redisPool, "redis_pool", "", 256, "Redis pool size (Redis engine)")
var versionCmd = &cobra.Command{
Use: "version",
Short: "Centrifugo version number",
Long: `Print the version number of Centrifugo`,
Run: func(cmd *cobra.Command, args []string) {
fmt.Printf("Centrifugo v%s\n", VERSION)
},
}
var checkConfigFile string
var checkConfigCmd = &cobra.Command{
Use: "checkconfig",
Short: "Check configuration file",
Long: `Check Centrifugo configuration file`,
Run: func(cmd *cobra.Command, args []string) {
err := validateConfig(checkConfigFile)
if err != nil {
logger.FATAL.Fatalln(err)
}
},
}
checkConfigCmd.Flags().StringVarP(&checkConfigFile, "config", "c", "config.json", "path to config file to check")
var outputConfigFile string
var generateConfigCmd = &cobra.Command{
Use: "genconfig",
Short: "Generate simple configuration file to start with",
Long: `Generate simple configuration file to start with`,
Run: func(cmd *cobra.Command, args []string) {
err := generateConfig(outputConfigFile)
if err != nil {
logger.FATAL.Fatalln(err)
}
},
}
generateConfigCmd.Flags().StringVarP(&outputConfigFile, "config", "c", "config.json", "path to output config file")
rootCmd.AddCommand(versionCmd)
rootCmd.AddCommand(checkConfigCmd)
rootCmd.AddCommand(generateConfigCmd)
rootCmd.Execute()
}