package main import ( "context" "errors" "flag" "fmt" stdlog "log" "os" "os/signal" "path/filepath" "runtime" "strings" "time" "github.com/ethereum/go-ethereum/log" gethmetrics "github.com/ethereum/go-ethereum/metrics" "github.com/status-im/status-go/api" "github.com/status-im/status-go/logutils" nodemetrics "github.com/status-im/status-go/metrics/node" "github.com/status-im/status-go/node" "github.com/status-im/status-go/params" "github.com/status-im/status-go/profiling" "golang.org/x/crypto/ssh/terminal" ) const ( serverClientName = "Statusd" ) var ( buildStamp = "N/A" // rely on linker: -ldflags -X main.buildStamp" ) var ( configFiles configFlags logLevel = flag.String("log", "", `Log level, one of: "ERROR", "WARN", "INFO", "DEBUG", and "TRACE"`) logWithoutColors = flag.Bool("log-without-color", false, "Disables log colors") ipcEnabled = flag.Bool("ipc", false, "Enable IPC RPC endpoint") ipcFile = flag.String("ipcfile", "", "Set IPC file path") pprofEnabled = flag.Bool("pprof", false, "Enable runtime profiling via pprof") pprofPort = flag.Int("pprof-port", 52525, "Port for runtime profiling via pprof") version = flag.Bool("version", false, "Print version and dump configuration") dataDir = flag.String("dir", getDefaultDataDir(), "Directory used by node to store data") register = flag.Bool("register", false, "Register and make the node discoverable by other nodes") mailserver = flag.Bool("mailserver", false, "Enable Mail Server with default configuration") networkID = flag.Int( "network-id", params.RopstenNetworkID, fmt.Sprintf( "A network ID: %d (Mainnet), %d (Ropsten), %d (Rinkeby)", params.MainNetworkID, params.RopstenNetworkID, params.RinkebyNetworkID, ), ) // don't change the name of this flag, https://github.com/ethereum/go-ethereum/blob/master/metrics/metrics.go#L41 metrics = flag.Bool("metrics", false, "Expose ethereum metrics with debug_metrics jsonrpc call") syncAndExit = flag.Int("sync-and-exit", -1, "Timeout in minutes for blockchain sync and exit, zero means no timeout unless sync is finished") ) // All general log messages in this package should be routed through this logger. var logger = log.New("package", "status-go/cmd/statusd") func init() { flag.Var(&configFiles, "c", "JSON configuration file(s). Multiple configuration files can be specified, and will be merged in occurrence order") colors := terminal.IsTerminal(int(os.Stdin.Fd())) if err := logutils.OverrideRootLog(true, "ERROR", "", colors); err != nil { stdlog.Fatalf("Error initializing logger: %v", err) } flag.Usage = printUsage flag.Parse() if flag.NArg() > 0 { printUsage() logger.Error("Extra args in command line: %v", flag.Args()) os.Exit(1) } } // nolint:gocyclo func main() { opts := []params.Option{params.WithFleet(params.FleetBeta)} if *mailserver { opts = append(opts, params.WithMailserver()) } config, err := params.NewNodeConfigWithDefaultsAndFiles( *dataDir, uint64(*networkID), opts, configFiles, ) if err != nil { printUsage() if err != nil { logger.Error(err.Error()) } os.Exit(1) } if *register && *mailserver { config.RegisterTopics = append(config.RegisterTopics, params.MailServerDiscv5Topic) } else if *register { config.RegisterTopics = append(config.RegisterTopics, params.WhisperDiscv5Topic) } // enable IPC RPC if *ipcEnabled { config.IPCEnabled = true config.IPCFile = *ipcFile } // set up logging options setupLogging(config) // We want statusd to be distinct from StatusIM client. config.Name = serverClientName if *version { printVersion(config, buildStamp) return } backend := api.NewStatusBackend() err = backend.StartNode(config) if err != nil { logger.Error("Node start failed", "error", err) return } // handle interrupt signals interruptCh := haltOnInterruptSignal(backend.StatusNode()) // Check if profiling shall be enabled. if *pprofEnabled { profiling.NewProfiler(*pprofPort).Go() } // Start collecting metrics. Metrics can be enabled by providing `-metrics` flag // or setting `gethmetrics.Enabled` to true during compilation time: // https://github.com/status-im/go-ethereum/pull/76. if *metrics || gethmetrics.Enabled { go startCollectingNodeMetrics(interruptCh, backend.StatusNode()) go gethmetrics.CollectProcessMetrics(3 * time.Second) } // Sync blockchain and stop. if *syncAndExit >= 0 { exitCode := syncAndStopNode(interruptCh, backend.StatusNode(), *syncAndExit) // Call was interrupted. Wait for graceful shutdown. if exitCode == -1 { if gethNode := backend.StatusNode().GethNode(); gethNode != nil { gethNode.Wait() } return } // Otherwise, exit immediately with a returned exit code. os.Exit(exitCode) } gethNode := backend.StatusNode().GethNode() if gethNode != nil { // wait till node has been stopped gethNode.Wait() } } func getDefaultDataDir() string { if home := os.Getenv("HOME"); home != "" { return filepath.Join(home, ".statusd") } return "./statusd-data" } func setupLogging(config *params.NodeConfig) { if *logLevel != "" { config.LogLevel = *logLevel } colors := !(*logWithoutColors) && terminal.IsTerminal(int(os.Stdin.Fd())) if err := logutils.OverrideRootLog( logEnabled(config), config.LogLevel, config.LogFile, colors, ); err != nil { stdlog.Fatalf("Error initializing logger: %v", err) } } // startCollectingStats collects various stats about the node and other protocols like Whisper. func startCollectingNodeMetrics(interruptCh <-chan struct{}, statusNode *node.StatusNode) { logger.Info("Starting collecting node metrics") gethNode := statusNode.GethNode() if gethNode == nil { logger.Error("Failed to run metrics because it could not get the node") return } ctx, cancel := context.WithCancel(context.Background()) defer cancel() go func() { // Try to subscribe and collect metrics. In case of an error, retry. for { if err := nodemetrics.SubscribeServerEvents(ctx, gethNode); err != nil { logger.Error("Failed to subscribe server events", "error", err) } else { // no error means that the subscription was terminated by purpose return } time.Sleep(time.Second) } }() <-interruptCh } func logEnabled(config *params.NodeConfig) bool { return config.LogLevel != "" || config.LogFile != "" } var ( errStatusServiceRequiresIPC = errors.New("to enable the StatusService on IPC, -ipc flag must be set") errStatusServiceRequiresHTTP = errors.New("to enable the StatusService on HTTP, -http flag must be set") errStatusServiceInvalidFlag = errors.New("-status flag valid values are: ipc, http") ) func configureStatusService(flagValue string, nodeConfig *params.NodeConfig) (*params.NodeConfig, error) { switch flagValue { case "ipc": if !nodeConfig.IPCEnabled { return nil, errStatusServiceRequiresIPC } nodeConfig.EnableStatusService = true case "http": if !nodeConfig.HTTPEnabled { return nil, errStatusServiceRequiresHTTP } nodeConfig.EnableStatusService = true nodeConfig.AddAPIModule("status") case "": nodeConfig.EnableStatusService = false default: return nil, errStatusServiceInvalidFlag } return nodeConfig, nil } // printVersion prints verbose output about version and config. func printVersion(config *params.NodeConfig, buildStamp string) { fmt.Println(strings.Title(config.Name)) fmt.Println("Version:", config.Version) if buildStamp != "" { fmt.Println("Build Stamp:", buildStamp) } fmt.Println("Network Id:", config.NetworkID) fmt.Println("Go Version:", runtime.Version()) fmt.Println("OS:", runtime.GOOS) fmt.Printf("GOPATH=%s\n", os.Getenv("GOPATH")) fmt.Printf("GOROOT=%s\n", runtime.GOROOT()) fmt.Println("Loaded Config: ", config) } func printUsage() { usage := ` Usage: statusd [options] Examples: statusd # run regular Whisper node that joins Status network statusd -c ./default.json # run node with configuration specified in ./default.json file statusd -c ./default.json -c ./standalone.json # run node with configuration specified in ./default.json file, after merging ./standalone.json file statusd -c ./default.json -metrics # run node with configuration specified in ./default.json file, and expose ethereum metrics with debug_metrics jsonrpc call Options: ` fmt.Fprintf(os.Stderr, usage) flag.PrintDefaults() } // haltOnInterruptSignal catches interrupt signal (SIGINT) and // stops the node. It times out after 5 seconds // if the node can not be stopped. func haltOnInterruptSignal(statusNode *node.StatusNode) <-chan struct{} { interruptCh := make(chan struct{}) go func() { signalCh := make(chan os.Signal, 1) signal.Notify(signalCh, os.Interrupt) defer signal.Stop(signalCh) <-signalCh close(interruptCh) logger.Info("Got interrupt, shutting down...") if err := statusNode.Stop(); err != nil { logger.Error("Failed to stop node", "error", err) os.Exit(1) } }() return interruptCh }