package main import ( "encoding/hex" "fmt" "github.com/ethereum/eth-go" "github.com/ethereum/eth-go/ethchain" "github.com/ethereum/eth-go/ethminer" "github.com/ethereum/eth-go/ethpub" "github.com/ethereum/eth-go/ethrpc" "github.com/ethereum/eth-go/ethutil" "github.com/ethereum/go-ethereum/utils" "log" "os" "os/signal" "runtime" "strings" ) const Debug = true // Register interrupt handlers so we can stop the ethereum func RegisterInterrupts(s *eth.Ethereum) { // Buffered chan of one is enough c := make(chan os.Signal, 1) // Notify about interrupts for now signal.Notify(c, os.Interrupt) go func() { for sig := range c { fmt.Printf("Shutting down (%v) ... \n", sig) s.Stop() } }() } func confirm(message string) bool { fmt.Println(message, "Are you sure? (y/n)") var r string fmt.Scanln(&r) for ; ; fmt.Scanln(&r) { if r == "n" || r == "y" { break } else { fmt.Printf("Yes or no?", r) } } return r == "y" } func main() { Init() runtime.GOMAXPROCS(runtime.NumCPU()) // set logger var logSys *log.Logger flags := log.LstdFlags ethutil.ReadConfig(DataDir) logger := ethutil.Config.Log if LogFile != "" { logfile, err := os.OpenFile(LogFile, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666) if err != nil { panic(fmt.Sprintf("error opening log file '%s': %v", LogFile, err)) } defer logfile.Close() log.SetOutput(logfile) logSys = log.New(logfile, "", flags) logger.AddLogSystem(logSys) } /*else { logSys = log.New(os.Stdout, "", flags) }*/ ethchain.InitFees() // Instantiated a eth stack ethereum, err := eth.New(eth.CapDefault, UseUPnP) if err != nil { log.Println("eth start err:", err) return } ethereum.Port = OutboundPort // bookkeeping tasks switch { case GenAddr: if NonInteractive || confirm("This action overwrites your old private key.") { utils.CreateKeyPair(true) } os.Exit(0) case len(ImportKey) > 0: if NonInteractive || confirm("This action overwrites your old private key.") { mnemonic := strings.Split(ImportKey, " ") if len(mnemonic) == 24 { logSys.Println("Got mnemonic key, importing.") key := ethutil.MnemonicDecode(mnemonic) utils.ImportPrivateKey(key) } else if len(mnemonic) == 1 { logSys.Println("Got hex key, importing.") utils.ImportPrivateKey(ImportKey) } else { logSys.Println("Did not recognise format, exiting.") } } os.Exit(0) case ExportKey: key := ethutil.Config.Db.GetKeys()[0] logSys.Println(fmt.Sprintf("prvk: %x\n", key.PrivateKey)) os.Exit(0) case ShowGenesis: logSys.Println(ethereum.BlockChain().Genesis()) os.Exit(0) default: // Creates a keypair if non exists utils.CreateKeyPair(false) } // client logger.Infoln(fmt.Sprintf("Starting Ethereum v%s", ethutil.Config.Ver)) // Set the max peers ethereum.MaxPeers = MaxPeer // Set Mining status ethereum.Mining = StartMining if StartMining { logger.Infoln("Miner started") // Fake block mining. It broadcasts a new block every 5 seconds go func() { if StartMining { logger.Infoln("Miner started") go func() { data, _ := ethutil.Config.Db.Get([]byte("KeyRing")) keyRing := ethutil.NewValueFromBytes(data) addr := keyRing.Get(0).Bytes() pair, _ := ethchain.NewKeyPairFromSec(ethutil.FromHex(hex.EncodeToString(addr))) miner := ethminer.NewDefaultMiner(pair.Address(), ethereum) miner.Start() }() } }() } if StartConsole { err := os.Mkdir(ethutil.Config.ExecPath, os.ModePerm) // Error is OK if the error is ErrExist if err != nil && !os.IsExist(err) { log.Panic("Unable to create EXECPATH:", err) } console := NewConsole(ethereum) go console.Start() } if StartRpc { ethereum.RpcServer, err = ethrpc.NewJsonRpcServer(ethpub.NewPEthereum(ethereum), RpcPort) if err != nil { logger.Infoln("Could not start RPC interface:", err) } else { go ethereum.RpcServer.Start() } } RegisterInterrupts(ethereum) ethereum.Start(UseSeed) // Wait for shutdown ethereum.WaitForShutdown() }