/
defaultcmd.go
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/
defaultcmd.go
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// Modifications Copyright 2019 The klaytn Authors
// Copyright 2016 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
//
// This file is derived from cmd/geth/main.go (2018/06/04).
// Modified and improved for the klaytn development.
package nodecmd
import (
"fmt"
"os"
"runtime"
"strings"
"github.com/klaytn/klaytn/accounts"
"github.com/klaytn/klaytn/accounts/keystore"
"github.com/klaytn/klaytn/api/debug"
"github.com/klaytn/klaytn/client"
"github.com/klaytn/klaytn/cmd/utils"
"github.com/klaytn/klaytn/log"
metricutils "github.com/klaytn/klaytn/metrics/utils"
"github.com/klaytn/klaytn/node"
"github.com/klaytn/klaytn/node/cn"
"gopkg.in/urfave/cli.v1"
)
const (
clientIdentifier = "klay" // Client identifier to advertise over the network
SCNNetworkType = "scn" // Service Chain Network
MNNetworkType = "mn" // Mainnet Network
)
// runKlaytnNode is the main entry point into the system if no special subcommand is ran.
// It creates a default node based on the command line arguments and runs it in
// blocking mode, waiting for it to be shut down.
func RunKlaytnNode(ctx *cli.Context) error {
fullNode := MakeFullNode(ctx)
startNode(ctx, fullNode)
fullNode.Wait()
return nil
}
// startNode boots up the system node and all registered protocols, after which
// it unlocks any requested accounts, and starts the RPC/IPC interfaces and the
// miner.
func startNode(ctx *cli.Context, stack *node.Node) {
debug.Memsize.Add("node", stack)
// Start up the node itself
utils.StartNode(stack)
// Register wallet event handlers to open and auto-derive wallets
events := make(chan accounts.WalletEvent, 16)
stack.AccountManager().Subscribe(events)
go func() {
// Create a chain state reader for self-derivation
rpcClient, err := stack.Attach()
if err != nil {
log.Fatalf("Failed to attach to self: %v", err)
}
stateReader := client.NewClient(rpcClient)
// Open any wallets already attached
for _, wallet := range stack.AccountManager().Wallets() {
if err := wallet.Open(""); err != nil {
logger.Error("Failed to open wallet", "url", wallet.URL(), "err", err)
}
}
// Listen for wallet event till termination
for event := range events {
switch event.Kind {
case accounts.WalletArrived:
if err := event.Wallet.Open(""); err != nil {
logger.Error("New wallet appeared, failed to open", "url", event.Wallet.URL(), "err", err)
}
case accounts.WalletOpened:
status, _ := event.Wallet.Status()
logger.Info("New wallet appeared", "url", event.Wallet.URL(), "status", status)
if event.Wallet.URL().Scheme == "ledger" {
event.Wallet.SelfDerive(accounts.DefaultLedgerBaseDerivationPath, stateReader)
} else {
event.Wallet.SelfDerive(accounts.DefaultBaseDerivationPath, stateReader)
}
case accounts.WalletDropped:
logger.Info("Old wallet dropped", "url", event.Wallet.URL())
event.Wallet.Close()
}
}
}()
if utils.NetworkTypeFlag.Value == SCNNetworkType && utils.ServiceChainConsensusFlag.Value == "clique" {
logger.Crit("using clique consensus type is not allowed anymore!")
} else {
startKlaytnAuxiliaryService(ctx, stack)
}
// Unlock any account specifically requested
ks := stack.AccountManager().Backends(keystore.KeyStoreType)[0].(*keystore.KeyStore)
passwords := utils.MakePasswordList(ctx)
unlocks := strings.Split(ctx.GlobalString(utils.UnlockedAccountFlag.Name), ",")
for i, account := range unlocks {
if trimmed := strings.TrimSpace(account); trimmed != "" {
UnlockAccount(ctx, ks, trimmed, i, passwords)
}
}
}
func startKlaytnAuxiliaryService(ctx *cli.Context, stack *node.Node) {
var cn *cn.CN
if err := stack.Service(&cn); err != nil {
log.Fatalf("Klaytn service not running: %v", err)
}
// TODO-Klaytn-NodeCmd disable accept tx before finishing sync.
if err := cn.StartMining(false); err != nil {
log.Fatalf("Failed to start mining: %v", err)
}
}
func CommandNotExist(ctx *cli.Context, s string) {
cli.ShowAppHelp(ctx)
fmt.Printf("Error: Unknown command \"%v\"\n", s)
os.Exit(1)
}
func OnUsageError(context *cli.Context, err error, isSubcommand bool) error {
cli.ShowAppHelp(context)
return err
}
func CheckCommands(ctx *cli.Context) error {
valid := false
for _, cmd := range ctx.App.Commands {
if cmd.Name == ctx.Args().First() {
valid = true
}
}
if !valid && ctx.Args().Present() {
cli.ShowAppHelp(ctx)
return fmt.Errorf("Unknown command \"%v\"\n", ctx.Args().First())
}
return nil
}
func BeforeRunKlaytn(ctx *cli.Context) error {
if err := CheckCommands(ctx); err != nil {
return err
}
runtime.GOMAXPROCS(runtime.NumCPU())
logDir := (&node.Config{DataDir: utils.MakeDataDir(ctx)}).ResolvePath("logs")
debug.CreateLogDir(logDir)
if err := debug.Setup(ctx); err != nil {
return err
}
metricutils.StartMetricCollectionAndExport(ctx)
utils.SetupNetwork(ctx)
return nil
}
func BeforeRunBootnode(ctx *cli.Context) error {
if err := debug.Setup(ctx); err != nil {
return err
}
metricutils.StartMetricCollectionAndExport(ctx)
return nil
}