package main import ( "fmt" "os" "sort" "strconv" "strings" "time" "github.com/spf13/pflag" "github.com/spf13/viper" "github.com/valyala/fasthttp" ) const ( defaultRebalanceTimer = 15 * time.Second defaultRequestTimeout = 15 * time.Second defaultConnectTimeout = 30 * time.Second cfgListenAddress = "listen_address" cfgTLSCertificate = "tls_certificate" cfgTLSKey = "tls_key" // Web. cfgWebReadBufferSize = "web.read_buffer_size" cfgWebWriteBufferSize = "web.write_buffer_size" cfgWebReadTimeout = "web.read_timeout" cfgWebWriteTimeout = "web.write_timeout" cfgWebStreamRequestBody = "web.stream_request_body" cfgWebMaxRequestBodySize = "web.max_request_body_size" // Timeouts. cfgConTimeout = "connect_timeout" cfgReqTimeout = "request_timeout" cfgRebalance = "rebalance_timer" // Logger. cfgLoggerLevel = "logger.level" cfgLoggerFormat = "logger.format" cfgLoggerTraceLevel = "logger.trace_level" cfgLoggerNoCaller = "logger.no_caller" cfgLoggerNoDisclaimer = "logger.no_disclaimer" cfgLoggerSamplingInitial = "logger.sampling.initial" cfgLoggerSamplingThereafter = "logger.sampling.thereafter" // Wallet. cfgWalletPassphrase = "wallet.passphrase" // Uploader Header. cfgUploaderHeaderEnableDefaultTimestamp = "upload_header.use_default_timestamp" // Peers. cfgPeers = "peers" // Application. cfgApplicationName = "app.name" cfgApplicationVersion = "app.version" // Command line args. cmdHelp = "help" cmdVersion = "version" cmdVerbose = "verbose" cmdPprof = "pprof" cmdMetrics = "metrics" cmdWallet = "wallet" cmdAddress = "address" cmdConfig = "config" ) var ignore = map[string]struct{}{ cfgApplicationName: {}, cfgApplicationVersion: {}, cfgPeers: {}, cmdHelp: {}, cmdVersion: {}, } func settings() *viper.Viper { v := viper.New() v.AutomaticEnv() v.SetEnvPrefix(Prefix) v.AllowEmptyEnv(true) v.SetConfigType("yaml") v.SetEnvKeyReplacer(strings.NewReplacer(".", "_")) // flags setup: flags := pflag.NewFlagSet("commandline", pflag.ExitOnError) flags.SetOutput(os.Stdout) flags.SortFlags = false flags.Bool(cmdPprof, false, "enable pprof") flags.Bool(cmdMetrics, false, "enable prometheus") help := flags.BoolP(cmdHelp, "h", false, "show help") version := flags.BoolP(cmdVersion, "v", false, "show version") flags.StringP(cmdWallet, "w", "", `path to the wallet`) flags.String(cmdAddress, "", `address of wallet account`) config := flags.String(cmdConfig, "", "config path") flags.Bool(cmdVerbose, false, "debug gRPC connections") flags.Duration(cfgConTimeout, defaultConnectTimeout, "gRPC connect timeout") flags.Duration(cfgReqTimeout, defaultRequestTimeout, "gRPC request timeout") flags.Duration(cfgRebalance, defaultRebalanceTimer, "gRPC connection rebalance timer") flags.String(cfgListenAddress, "0.0.0.0:8082", "address to listen") flags.String(cfgTLSCertificate, "", "TLS certificate path") flags.String(cfgTLSKey, "", "TLS key path") peers := flags.StringArrayP(cfgPeers, "p", nil, "NeoFS nodes") // set prefers: v.Set(cfgApplicationName, "neofs-http-gw") v.Set(cfgApplicationVersion, Version) // set defaults: // logger: v.SetDefault(cfgLoggerLevel, "debug") v.SetDefault(cfgLoggerFormat, "console") v.SetDefault(cfgLoggerTraceLevel, "panic") v.SetDefault(cfgLoggerNoCaller, false) v.SetDefault(cfgLoggerNoDisclaimer, true) v.SetDefault(cfgLoggerSamplingInitial, 1000) v.SetDefault(cfgLoggerSamplingThereafter, 1000) // web-server: v.SetDefault(cfgWebReadBufferSize, 4096) v.SetDefault(cfgWebWriteBufferSize, 4096) v.SetDefault(cfgWebReadTimeout, time.Second*15) v.SetDefault(cfgWebWriteTimeout, time.Minute) v.SetDefault(cfgWebStreamRequestBody, true) v.SetDefault(cfgWebMaxRequestBodySize, fasthttp.DefaultMaxRequestBodySize) // upload header v.SetDefault(cfgUploaderHeaderEnableDefaultTimestamp, false) if err := v.BindPFlags(flags); err != nil { panic(err) } if err := flags.Parse(os.Args); err != nil { panic(err) } switch { case help != nil && *help: fmt.Printf("NeoFS HTTP Gateway %s\n", Version) flags.PrintDefaults() fmt.Println() fmt.Println("Default environments:") fmt.Println() keys := v.AllKeys() sort.Strings(keys) for i := range keys { if _, ok := ignore[keys[i]]; ok { continue } k := strings.Replace(keys[i], ".", "_", -1) fmt.Printf("%s_%s = %v\n", Prefix, strings.ToUpper(k), v.Get(keys[i])) } fmt.Println() fmt.Println("Peers preset:") fmt.Println() fmt.Printf("%s_%s_[N]_ADDRESS = string\n", Prefix, strings.ToUpper(cfgPeers)) fmt.Printf("%s_%s_[N]_WEIGHT = float\n", Prefix, strings.ToUpper(cfgPeers)) os.Exit(0) case version != nil && *version: fmt.Printf("NeoFS HTTP Gateway %s\n", Version) os.Exit(0) } if v.IsSet(cmdConfig) { if cfgFile, err := os.Open(*config); err != nil { panic(err) } else if err := v.ReadConfig(cfgFile); err != nil { panic(err) } } if peers != nil && len(*peers) > 0 { for i := range *peers { v.SetDefault(cfgPeers+"."+strconv.Itoa(i)+".address", (*peers)[i]) v.SetDefault(cfgPeers+"."+strconv.Itoa(i)+".weight", 1) } } return v }