github.com/bigzoro/my_simplechain@v0.0.0-20240315012955-8ad0a2a29bb9/cmd/utils/flags.go

// Copyright 2015 The go-simplechain Authors
// This file is part of go-simplechain.
//
// go-simplechain 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-simplechain 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-simplechain. If not, see <http://www.gnu.org/licenses/>.

// Package utils contains internal helper functions for go-simplechain commands.
package utils

import (
	"crypto/ecdsa"
	"encoding/binary"
	"errors"
	"fmt"
	"io"
	"io/ioutil"
	"math/big"
	"os"
	"path/filepath"
	"strconv"
	"strings"
	"text/tabwriter"
	"text/template"
	"time"

	"github.com/bigzoro/my_simplechain/accounts"
	"github.com/bigzoro/my_simplechain/accounts/keystore"
	"github.com/bigzoro/my_simplechain/common"
	"github.com/bigzoro/my_simplechain/common/fdlimit"
	"github.com/bigzoro/my_simplechain/consensus"
	"github.com/bigzoro/my_simplechain/consensus/clique"
	"github.com/bigzoro/my_simplechain/consensus/ethash"
	bls "github.com/bigzoro/my_simplechain/consensus/hotstuff/bls12-381"
	"github.com/bigzoro/my_simplechain/consensus/pbft"
	"github.com/bigzoro/my_simplechain/core"
	"github.com/bigzoro/my_simplechain/core/vm"
	"github.com/bigzoro/my_simplechain/crypto"
	"github.com/bigzoro/my_simplechain/eth"
	"github.com/bigzoro/my_simplechain/eth/downloader"
	"github.com/bigzoro/my_simplechain/eth/gasprice"
	"github.com/bigzoro/my_simplechain/ethdb"
	"github.com/bigzoro/my_simplechain/ethstats"
	"github.com/bigzoro/my_simplechain/graphql"
	"github.com/bigzoro/my_simplechain/les"
	"github.com/bigzoro/my_simplechain/log"
	"github.com/bigzoro/my_simplechain/metrics"
	"github.com/bigzoro/my_simplechain/metrics/influxdb"
	"github.com/bigzoro/my_simplechain/miner"
	"github.com/bigzoro/my_simplechain/node"
	"github.com/bigzoro/my_simplechain/p2p"
	"github.com/bigzoro/my_simplechain/p2p/discv5"
	"github.com/bigzoro/my_simplechain/p2p/enode"
	"github.com/bigzoro/my_simplechain/p2p/nat"
	"github.com/bigzoro/my_simplechain/p2p/netutil"
	"github.com/bigzoro/my_simplechain/params"
	"github.com/bigzoro/my_simplechain/permission"
	"github.com/bigzoro/my_simplechain/rpc"
	whisper "github.com/bigzoro/my_simplechain/whisper/whisperv6"
	"gopkg.in/urfave/cli.v1"
)

var (
	CommandHelpTemplate = `{{.cmd.Name}}{{if .cmd.Subcommands}} command{{end}}{{if .cmd.Flags}} [command options]{{end}} [arguments...]
{{if .cmd.Description}}{{.cmd.Description}}
{{end}}{{if .cmd.Subcommands}}
SUBCOMMANDS:
	{{range .cmd.Subcommands}}{{.Name}}{{with .ShortName}}, {{.}}{{end}}{{ "\t" }}{{.Usage}}
	{{end}}{{end}}{{if .categorizedFlags}}
{{range $idx, $categorized := .categorizedFlags}}{{$categorized.Name}} OPTIONS:
{{range $categorized.Flags}}{{"\t"}}{{.}}
{{end}}
{{end}}{{end}}`

	OriginCommandHelpTemplate = `{{.Name}}{{if .Subcommands}} command{{end}}{{if .Flags}} [command options]{{end}} [arguments...]
{{if .Description}}{{.Description}}
{{end}}{{if .Subcommands}}
SUBCOMMANDS:
	{{range .Subcommands}}{{.Name}}{{with .ShortName}}, {{.}}{{end}}{{ "\t" }}{{.Usage}}
	{{end}}{{end}}{{if .Flags}}
OPTIONS:
{{range $.Flags}}{{"\t"}}{{.}}
{{end}}
{{end}}`
)

func init() {
	cli.AppHelpTemplate = `{{.Name}} {{if .Flags}}[global options] {{end}}command{{if .Flags}} [command options]{{end}} [arguments...]

VERSION:
   {{.Version}}

COMMANDS:
   {{range .Commands}}{{.Name}}{{with .ShortName}}, {{.}}{{end}}{{ "\t" }}{{.Usage}}
   {{end}}{{if .Flags}}
GLOBAL OPTIONS:
   {{range .Flags}}{{.}}
   {{end}}{{end}}
`
	cli.CommandHelpTemplate = CommandHelpTemplate
	cli.HelpPrinter = printHelp
}

// NewApp creates an app with sane defaults.
func NewApp(gitCommit, gitDate, usage string) *cli.App {
	app := cli.NewApp()
	app.Name = filepath.Base(os.Args[0])
	app.Author = ""
	app.Email = ""
	app.Version = params.VersionWithCommit(gitCommit, gitDate)
	app.Usage = usage
	return app
}

func printHelp(out io.Writer, templ string, data interface{}) {
	funcMap := template.FuncMap{"join": strings.Join}
	t := template.Must(template.New("help").Funcs(funcMap).Parse(templ))
	w := tabwriter.NewWriter(out, 38, 8, 2, ' ', 0)
	err := t.Execute(w, data)
	if err != nil {
		panic(err)
	}
	w.Flush()
}

// These are all the command line flags we support.
// If you add to this list, please remember to include the
// flag in the appropriate command definition.
//
// The flags are defined here so their names and help texts
// are the same for all commands.

// MakeDataDir retrieves the currently requested data directory, terminating
// if none (or the empty string) is specified. If the node is starting a testnet,
// the a subdirectory of the specified datadir will be used.
func MakeDataDir(ctx *cli.Context) string {
	if path := ctx.GlobalString(DataDirFlag.Name); path != "" {
		if ctx.GlobalBool(TestnetFlag.Name) {
			return filepath.Join(path, "testnet")
		}
		return path
	}
	Fatalf("Cannot determine default data directory, please set manually (--datadir)")
	return ""
}

// setNodeKey creates a node key from set command line flags, either loading it
// from a file or as a specified hex value. If neither flags were provided, this
// method returns nil and an emphemeral key is to be generated.
func setNodeKey(ctx *cli.Context, cfg *p2p.Config) {
	var (
		hex  = ctx.GlobalString(NodeKeyHexFlag.Name)
		file = ctx.GlobalString(NodeKeyFileFlag.Name)
		key  *ecdsa.PrivateKey
		err  error
	)
	switch {
	case file != "" && hex != "":
		Fatalf("Options %q and %q are mutually exclusive", NodeKeyFileFlag.Name, NodeKeyHexFlag.Name)
	case file != "":
		if key, err = crypto.LoadECDSA(file); err != nil {
			Fatalf("Option %q: %v", NodeKeyFileFlag.Name, err)
		}
		cfg.PrivateKey = key
	case hex != "":
		if key, err = crypto.HexToECDSA(hex); err != nil {
			Fatalf("Option %q: %v", NodeKeyHexFlag.Name, err)
		}
		cfg.PrivateKey = key
	}
}

// setNodeUserIdent creates the user identifier from CLI flags.
func setNodeUserIdent(ctx *cli.Context, cfg *node.Config) {
	if identity := ctx.GlobalString(IdentityFlag.Name); len(identity) > 0 {
		cfg.UserIdent = identity
	}
}

// setBootstrapNodes creates a list of bootstrap nodes from the command line
// flags, reverting to pre-configured ones if none have been specified.
func setBootstrapNodes(ctx *cli.Context, cfg *p2p.Config) {
	urls := params.MainnetBootnodes
	switch {
	case ctx.GlobalIsSet(BootnodesFlag.Name) || ctx.GlobalIsSet(BootnodesV4Flag.Name):
		if ctx.GlobalIsSet(BootnodesV4Flag.Name) {
			urls = strings.Split(ctx.GlobalString(BootnodesV4Flag.Name), ",")
		} else {
			urls = strings.Split(ctx.GlobalString(BootnodesFlag.Name), ",")
		}
	case ctx.GlobalBool(TestnetFlag.Name):
		urls = params.TestnetBootnodes
	case cfg.BootstrapNodes != nil:
		return // already set, don't apply defaults.
	}

	cfg.BootstrapNodes = make([]*enode.Node, 0, len(urls))
	for _, url := range urls {
		if url != "" {
			node, err := enode.Parse(enode.ValidSchemes, url)
			if err != nil {
				log.Crit("Bootstrap URL invalid", "enode", url, "err", err)
				continue
			}
			cfg.BootstrapNodes = append(cfg.BootstrapNodes, node)
		}
	}
}

// setBootstrapNodesV5 creates a list of bootstrap nodes from the command line
// flags, reverting to pre-configured ones if none have been specified.
func setBootstrapNodesV5(ctx *cli.Context, cfg *p2p.Config) {
	urls := params.DiscoveryV5Bootnodes
	switch {
	case ctx.GlobalIsSet(BootnodesFlag.Name) || ctx.GlobalIsSet(BootnodesV5Flag.Name):
		if ctx.GlobalIsSet(BootnodesV5Flag.Name) {
			urls = strings.Split(ctx.GlobalString(BootnodesV5Flag.Name), ",")
		} else {
			urls = strings.Split(ctx.GlobalString(BootnodesFlag.Name), ",")
		}
	case cfg.BootstrapNodesV5 != nil:
		return // already set, don't apply defaults.
	}

	cfg.BootstrapNodesV5 = make([]*discv5.Node, 0, len(urls))
	for _, url := range urls {
		if url != "" {
			node, err := discv5.ParseNode(url)
			if err != nil {
				log.Error("Bootstrap URL invalid", "enode", url, "err", err)
				continue
			}
			cfg.BootstrapNodesV5 = append(cfg.BootstrapNodesV5, node)
		}
	}
}

// setListenAddress creates a TCP listening address string from set command
// line flags.
func setListenAddress(ctx *cli.Context, cfg *p2p.Config) {
	if ctx.GlobalIsSet(ListenPortFlag.Name) {
		cfg.ListenAddr = fmt.Sprintf(":%d", ctx.GlobalInt(ListenPortFlag.Name))
	}
}

// setNAT creates a port mapper from command line flags.
func setNAT(ctx *cli.Context, cfg *p2p.Config) {
	if ctx.GlobalIsSet(NATFlag.Name) {
		natif, err := nat.Parse(ctx.GlobalString(NATFlag.Name))
		if err != nil {
			Fatalf("Option %s: %v", NATFlag.Name, err)
		}
		cfg.NAT = natif
	}
}

// splitAndTrim splits input separated by a comma
// and trims excessive white space from the substrings.
func splitAndTrim(input string) []string {
	result := strings.Split(input, ",")
	for i, r := range result {
		result[i] = strings.TrimSpace(r)
	}
	return result
}

// setHTTP creates the HTTP RPC listener interface string from the set
// command line flags, returning empty if the HTTP endpoint is disabled.
func setHTTP(ctx *cli.Context, cfg *node.Config) {
	if ctx.GlobalBool(RPCEnabledFlag.Name) && cfg.HTTPHost == "" {
		cfg.HTTPHost = "127.0.0.1"
		if ctx.GlobalIsSet(RPCListenAddrFlag.Name) {
			cfg.HTTPHost = ctx.GlobalString(RPCListenAddrFlag.Name)
		}
	}
	if ctx.GlobalIsSet(RPCPortFlag.Name) {
		cfg.HTTPPort = ctx.GlobalInt(RPCPortFlag.Name)
	}
	if ctx.GlobalIsSet(RPCCORSDomainFlag.Name) {
		cfg.HTTPCors = splitAndTrim(ctx.GlobalString(RPCCORSDomainFlag.Name))
	}
	if ctx.GlobalIsSet(RPCApiFlag.Name) {
		cfg.HTTPModules = splitAndTrim(ctx.GlobalString(RPCApiFlag.Name))
	}
	if ctx.GlobalIsSet(RPCVirtualHostsFlag.Name) {
		cfg.HTTPVirtualHosts = splitAndTrim(ctx.GlobalString(RPCVirtualHostsFlag.Name))
	}
}

// setGraphQL creates the GraphQL listener interface string from the set
// command line flags, returning empty if the GraphQL endpoint is disabled.
func setGraphQL(ctx *cli.Context, cfg *node.Config) {
	if ctx.GlobalBool(GraphQLEnabledFlag.Name) && cfg.GraphQLHost == "" {
		cfg.GraphQLHost = "127.0.0.1"
		if ctx.GlobalIsSet(GraphQLListenAddrFlag.Name) {
			cfg.GraphQLHost = ctx.GlobalString(GraphQLListenAddrFlag.Name)
		}
	}
	cfg.GraphQLPort = ctx.GlobalInt(GraphQLPortFlag.Name)
	if ctx.GlobalIsSet(GraphQLCORSDomainFlag.Name) {
		cfg.GraphQLCors = splitAndTrim(ctx.GlobalString(GraphQLCORSDomainFlag.Name))
	}
	if ctx.GlobalIsSet(GraphQLVirtualHostsFlag.Name) {
		cfg.GraphQLVirtualHosts = splitAndTrim(ctx.GlobalString(GraphQLVirtualHostsFlag.Name))
	}
}

// setWS creates the WebSocket RPC listener interface string from the set
// command line flags, returning empty if the HTTP endpoint is disabled.
func setWS(ctx *cli.Context, cfg *node.Config) {
	if ctx.GlobalBool(WSEnabledFlag.Name) && cfg.WSHost == "" {
		cfg.WSHost = "127.0.0.1"
		if ctx.GlobalIsSet(WSListenAddrFlag.Name) {
			cfg.WSHost = ctx.GlobalString(WSListenAddrFlag.Name)
		}
	}
	if ctx.GlobalIsSet(WSPortFlag.Name) {
		cfg.WSPort = ctx.GlobalInt(WSPortFlag.Name)
	}
	if ctx.GlobalIsSet(WSAllowedOriginsFlag.Name) {
		cfg.WSOrigins = splitAndTrim(ctx.GlobalString(WSAllowedOriginsFlag.Name))
	}
	if ctx.GlobalIsSet(WSApiFlag.Name) {
		cfg.WSModules = splitAndTrim(ctx.GlobalString(WSApiFlag.Name))
	}
}

// setIPC creates an IPC path configuration from the set command line flags,
// returning an empty string if IPC was explicitly disabled, or the set path.
func setIPC(ctx *cli.Context, cfg *node.Config) {
	CheckExclusive(ctx, IPCDisabledFlag, IPCPathFlag)
	switch {
	case ctx.GlobalBool(IPCDisabledFlag.Name):
		cfg.IPCPath = ""
	case ctx.GlobalIsSet(IPCPathFlag.Name):
		cfg.IPCPath = ctx.GlobalString(IPCPathFlag.Name)
	}
}

// setLes configures the les server and ultra light client settings from the command line flags.
func setLes(ctx *cli.Context, cfg *eth.Config) {
	if ctx.GlobalIsSet(LightServeFlag.Name) {
		cfg.LightServ = ctx.GlobalInt(LightServeFlag.Name)
	}
	if ctx.GlobalIsSet(LightIngressFlag.Name) {
		cfg.LightIngress = ctx.GlobalInt(LightIngressFlag.Name)
	}
	if ctx.GlobalIsSet(LightEgressFlag.Name) {
		cfg.LightEgress = ctx.GlobalInt(LightEgressFlag.Name)
	}
	if ctx.GlobalIsSet(LightMaxPeersFlag.Name) {
		cfg.LightPeers = ctx.GlobalInt(LightMaxPeersFlag.Name)
	}
	if ctx.GlobalIsSet(UltraLightServersFlag.Name) {
		cfg.UltraLightServers = strings.Split(ctx.GlobalString(UltraLightServersFlag.Name), ",")
	}
	if ctx.GlobalIsSet(UltraLightFractionFlag.Name) {
		cfg.UltraLightFraction = ctx.GlobalInt(UltraLightFractionFlag.Name)
	}
	if cfg.UltraLightFraction <= 0 && cfg.UltraLightFraction > 100 {
		log.Error("Ultra light fraction is invalid", "had", cfg.UltraLightFraction, "updated", eth.DefaultConfig.UltraLightFraction)
		cfg.UltraLightFraction = eth.DefaultConfig.UltraLightFraction
	}
	if ctx.GlobalIsSet(UltraLightOnlyAnnounceFlag.Name) {
		cfg.UltraLightOnlyAnnounce = ctx.GlobalBool(UltraLightOnlyAnnounceFlag.Name)
	}
}

// makeDatabaseHandles raises out the number of allowed file handles per process
// for Geth and returns half of the allowance to assign to the database.
func makeDatabaseHandles() int {
	limit, err := fdlimit.Maximum()
	if err != nil {
		Fatalf("Failed to retrieve file descriptor allowance: %v", err)
	}
	raised, err := fdlimit.Raise(uint64(limit))
	if err != nil {
		Fatalf("Failed to raise file descriptor allowance: %v", err)
	}
	return int(raised / 2) // Leave half for networking and other stuff
}

// MakeAddress converts an account specified directly as a hex encoded string or
// a key index in the key store to an internal account representation.
func MakeAddress(ks *keystore.KeyStore, account string) (accounts.Account, error) {
	// If the specified account is a valid address, return it
	if common.IsHexAddress(account) {
		return accounts.Account{Address: common.HexToAddress(account)}, nil
	}
	// Otherwise try to interpret the account as a keystore index
	index, err := strconv.Atoi(account)
	if err != nil || index < 0 {
		return accounts.Account{}, fmt.Errorf("invalid account address or index %q", account)
	}
	log.Warn("-------------------------------------------------------------------")
	log.Warn("Referring to accounts by order in the keystore folder is dangerous!")
	log.Warn("This functionality is deprecated and will be removed in the future!")
	log.Warn("Please use explicit addresses! (can search via `geth account list`)")
	log.Warn("-------------------------------------------------------------------")

	accs := ks.Accounts()
	if len(accs) <= index {
		return accounts.Account{}, fmt.Errorf("index %d higher than number of accounts %d", index, len(accs))
	}
	return accs[index], nil
}

// setEtherbase retrieves the etherbase either from the directly specified
// command line flags or from the keystore if CLI indexed.
func setEtherbase(ctx *cli.Context, ks *keystore.KeyStore, cfg *eth.Config) {
	// Extract the current etherbase, new flag overriding legacy one
	var etherbase string
	if ctx.GlobalIsSet(MinerEtherbaseFlag.Name) {
		etherbase = ctx.GlobalString(MinerEtherbaseFlag.Name)
	}
	// Convert the etherbase into an address and configure it
	if etherbase != "" {
		if ks != nil {
			account, err := MakeAddress(ks, etherbase)
			if err != nil {
				Fatalf("Invalid miner etherbase: %v", err)
			}
			cfg.Miner.Etherbase = account.Address
		} else {
			Fatalf("No etherbase configured")
		}
	}
}

// MakePasswordList reads password lines from the file specified by the global --password flag.
func MakePasswordList(ctx *cli.Context) []string {
	path := ctx.GlobalString(PasswordFileFlag.Name)
	if path == "" {
		return nil
	}
	text, err := ioutil.ReadFile(path)
	if err != nil {
		Fatalf("Failed to read password file: %v", err)
	}
	lines := strings.Split(string(text), "\n")
	// Sanitise DOS line endings.
	for i := range lines {
		lines[i] = strings.TrimRight(lines[i], "\r")
	}
	return lines
}

func SetP2PConfig(ctx *cli.Context, cfg *p2p.Config) {
	setNodeKey(ctx, cfg)
	setNAT(ctx, cfg)
	setListenAddress(ctx, cfg)
	setBootstrapNodes(ctx, cfg)
	setBootstrapNodesV5(ctx, cfg)

	lightClient := ctx.GlobalString(SyncModeFlag.Name) == "light"
	lightServer := ctx.GlobalInt(LightServeFlag.Name) != 0

	lightPeers := ctx.GlobalInt(LightMaxPeersFlag.Name)
	if ctx.GlobalIsSet(LightMaxPeersFlag.Name) {
		lightPeers = ctx.GlobalInt(LightMaxPeersFlag.Name)
	}
	if lightClient && !ctx.GlobalIsSet(LightMaxPeersFlag.Name) {
		// dynamic default - for clients we use 1/10th of the default for servers
		lightPeers /= 10
	}

	if ctx.GlobalIsSet(MaxPeersFlag.Name) {
		cfg.MaxPeers = ctx.GlobalInt(MaxPeersFlag.Name)
		if lightServer && !ctx.GlobalIsSet(LightMaxPeersFlag.Name) {
			cfg.MaxPeers += lightPeers
		}
	} else {
		if lightServer {
			cfg.MaxPeers += lightPeers
		}
		if lightClient && ctx.GlobalIsSet(LightMaxPeersFlag.Name) && cfg.MaxPeers < lightPeers {
			cfg.MaxPeers = lightPeers
		}
	}
	if !(lightClient || lightServer) {
		lightPeers = 0
	}
	ethPeers := cfg.MaxPeers - lightPeers
	if lightClient {
		ethPeers = 0
	}
	log.Info("Maximum peer count", "ETH", ethPeers, "LES", lightPeers, "total", cfg.MaxPeers)

	if ctx.GlobalIsSet(MaxPendingPeersFlag.Name) {
		cfg.MaxPendingPeers = ctx.GlobalInt(MaxPendingPeersFlag.Name)
	}
	if ctx.GlobalIsSet(NoDiscoverFlag.Name) || lightClient {
		cfg.NoDiscovery = true
	}

	// if we're running a light client or server, force enable the v5 peer discovery
	// unless it is explicitly disabled with --nodiscover note that explicitly specifying
	// --v5disc overrides --nodiscover, in which case the later only disables v4 discovery
	forceV5Discovery := (lightClient || lightServer) && !ctx.GlobalBool(NoDiscoverFlag.Name)
	if ctx.GlobalIsSet(DiscoveryV5Flag.Name) {
		cfg.DiscoveryV5 = ctx.GlobalBool(DiscoveryV5Flag.Name)
	} else if forceV5Discovery {
		cfg.DiscoveryV5 = true
	}

	if netrestrict := ctx.GlobalString(NetrestrictFlag.Name); netrestrict != "" {
		list, err := netutil.ParseNetlist(netrestrict)
		if err != nil {
			Fatalf("Option %q: %v", NetrestrictFlag.Name, err)
		}
		cfg.NetRestrict = list
	}

	if ctx.GlobalBool(DeveloperFlag.Name) {
		// --dev mode can't use p2p networking.
		cfg.MaxPeers = 0
		cfg.ListenAddr = ":0"
		cfg.NoDiscovery = true
		cfg.DiscoveryV5 = false
	}
}

// SetNodeConfig applies node-related command line flags to the config.
func SetNodeConfig(ctx *cli.Context, cfg *node.Config) {
	SetP2PConfig(ctx, &cfg.P2P)
	setIPC(ctx, cfg)
	setHTTP(ctx, cfg)
	setGraphQL(ctx, cfg)
	setWS(ctx, cfg)
	setNodeUserIdent(ctx, cfg)
	setDataDir(ctx, cfg)
	setSmartCard(ctx, cfg)
	if ctx.GlobalIsSet(RaftPortFlag.Name) {
		cfg.RaftPort = ctx.GlobalInt(RaftPortFlag.Name)
	}
	if ctx.GlobalIsSet(MonitorModeFlag.Name) {
		cfg.MonitorPort = ctx.GlobalInt(MonitorPortFlag.Name)
	}
	cfg.EnableNodePermission = ctx.GlobalBool(EnableNodePermissionFlag.Name)
	cfg.TLSEnable = ctx.GlobalBool(PeerTLSEnabledFlag.Name)
	cfg.APITLSEnable = ctx.GlobalBool(APITLSEnabledFlag.Name)
	if ctx.GlobalIsSet(ExternalSignerFlag.Name) {
		cfg.ExternalSigner = ctx.GlobalString(ExternalSignerFlag.Name)
	}

	if ctx.GlobalIsSet(KeyStoreDirFlag.Name) {
		cfg.KeyStoreDir = ctx.GlobalString(KeyStoreDirFlag.Name)
	} else {
		cfg.KeyStoreDir, _ = filepath.Abs(filepath.Join(cfg.DataDir, KeyStoreDirFlag.Name))
	}
	if ctx.GlobalIsSet(LightKDFFlag.Name) {
		cfg.UseLightweightKDF = ctx.GlobalBool(LightKDFFlag.Name)
	}
	if ctx.GlobalIsSet(NoUSBFlag.Name) {
		cfg.NoUSB = ctx.GlobalBool(NoUSBFlag.Name)
	}
	if ctx.GlobalIsSet(InsecureUnlockAllowedFlag.Name) {
		cfg.InsecureUnlockAllowed = ctx.GlobalBool(InsecureUnlockAllowedFlag.Name)
	}
	if ctx.GlobalIsSet(PeerTLSDirFlag.Name) {
		cfg.TLSDir = ctx.GlobalString(PeerTLSDirFlag.Name)
	}
}

func setSmartCard(ctx *cli.Context, cfg *node.Config) {
	// Skip enabling smartcards if no path is set
	path := ctx.GlobalString(SmartCardDaemonPathFlag.Name)
	if path == "" {
		return
	}
	// Sanity check that the smartcard path is valid
	fi, err := os.Stat(path)
	if err != nil {
		log.Debug("Smartcard socket not found, disabling", "err", err)
		return
	}
	if fi.Mode()&os.ModeType != os.ModeSocket {
		log.Error("Invalid smartcard daemon path", "path", path, "type", fi.Mode().String())
		return
	}
	// Smartcard daemon path exists and is a socket, enable it
	cfg.SmartCardDaemonPath = path
}

func setDataDir(ctx *cli.Context, cfg *node.Config) {
	switch {
	case ctx.GlobalIsSet(DataDirFlag.Name):
		cfg.DataDir = ctx.GlobalString(DataDirFlag.Name)
	case ctx.GlobalBool(DeveloperFlag.Name):
		cfg.DataDir = "" // unless explicitly requested, use memory databases
	case ctx.GlobalBool(TestnetFlag.Name) && cfg.DataDir == node.DefaultDataDir():
		cfg.DataDir = filepath.Join(node.DefaultDataDir(), "testnet")
	}
}

func setGPO(ctx *cli.Context, cfg *gasprice.Config) {
	if ctx.GlobalIsSet(GpoBlocksFlag.Name) {
		cfg.Blocks = ctx.GlobalInt(GpoBlocksFlag.Name)
	}
	if ctx.GlobalIsSet(GpoPercentileFlag.Name) {
		cfg.Percentile = ctx.GlobalInt(GpoPercentileFlag.Name)
	}
}

func setTxPool(ctx *cli.Context, cfg *core.TxPoolConfig) {
	if ctx.GlobalIsSet(TxPoolLocalsFlag.Name) {
		locals := strings.Split(ctx.GlobalString(TxPoolLocalsFlag.Name), ",")
		for _, account := range locals {
			if trimmed := strings.TrimSpace(account); !common.IsHexAddress(trimmed) {
				Fatalf("Invalid account in --txpool.locals: %s", trimmed)
			} else {
				cfg.Locals = append(cfg.Locals, common.HexToAddress(account))
			}
		}
	}
	if ctx.GlobalIsSet(TxPoolNoLocalsFlag.Name) {
		cfg.NoLocals = ctx.GlobalBool(TxPoolNoLocalsFlag.Name)
	}
	if ctx.GlobalIsSet(TxPoolJournalFlag.Name) {
		cfg.Journal = ctx.GlobalString(TxPoolJournalFlag.Name)
	}
	if ctx.GlobalIsSet(TxPoolRejournalFlag.Name) {
		cfg.Rejournal = ctx.GlobalDuration(TxPoolRejournalFlag.Name)
	}
	if ctx.GlobalIsSet(TxPoolPriceLimitFlag.Name) {
		cfg.PriceLimit = ctx.GlobalUint64(TxPoolPriceLimitFlag.Name)
	}
	if ctx.GlobalIsSet(TxPoolPriceBumpFlag.Name) {
		cfg.PriceBump = ctx.GlobalUint64(TxPoolPriceBumpFlag.Name)
	}
	if ctx.GlobalIsSet(TxPoolAccountSlotsFlag.Name) {
		cfg.AccountSlots = ctx.GlobalUint64(TxPoolAccountSlotsFlag.Name)
	}
	if ctx.GlobalIsSet(TxPoolGlobalSlotsFlag.Name) {
		cfg.GlobalSlots = ctx.GlobalUint64(TxPoolGlobalSlotsFlag.Name)
	}
	if ctx.GlobalIsSet(TxPoolAccountQueueFlag.Name) {
		cfg.AccountQueue = ctx.GlobalUint64(TxPoolAccountQueueFlag.Name)
	}
	if ctx.GlobalIsSet(TxPoolGlobalQueueFlag.Name) {
		cfg.GlobalQueue = ctx.GlobalUint64(TxPoolGlobalQueueFlag.Name)
	}
	if ctx.GlobalIsSet(TxPoolLifetimeFlag.Name) {
		cfg.Lifetime = ctx.GlobalDuration(TxPoolLifetimeFlag.Name)
	}
}

func setEthash(ctx *cli.Context, cfg *eth.Config) {
	if ctx.GlobalIsSet(EthashCacheDirFlag.Name) {
		cfg.Ethash.CacheDir = ctx.GlobalString(EthashCacheDirFlag.Name)
	}
	if ctx.GlobalIsSet(EthashDatasetDirFlag.Name) {
		cfg.Ethash.DatasetDir = ctx.GlobalString(EthashDatasetDirFlag.Name)
	}
	if ctx.GlobalIsSet(EthashCachesInMemoryFlag.Name) {
		cfg.Ethash.CachesInMem = ctx.GlobalInt(EthashCachesInMemoryFlag.Name)
	}
	if ctx.GlobalIsSet(EthashCachesOnDiskFlag.Name) {
		cfg.Ethash.CachesOnDisk = ctx.GlobalInt(EthashCachesOnDiskFlag.Name)
	}
	if ctx.GlobalIsSet(EthashDatasetsInMemoryFlag.Name) {
		cfg.Ethash.DatasetsInMem = ctx.GlobalInt(EthashDatasetsInMemoryFlag.Name)
	}
	if ctx.GlobalIsSet(EthashDatasetsOnDiskFlag.Name) {
		cfg.Ethash.DatasetsOnDisk = ctx.GlobalInt(EthashDatasetsOnDiskFlag.Name)
	}
}

func setHotstuff(ctx *cli.Context, stack *node.Node, cfg *eth.Config) {
	if ctx.GlobalBool(HotstuffModeFlag.Name) {
		if !ctx.GlobalBool(MiningEnabledFlag.Name) {
			return
		}
		id := uint32(ctx.GlobalUint(HotstuffIDFlag.Name))
		if id == 0 {
			idpath := filepath.Join(stack.DataDir(), "hotstuff-id")
			idbytes, err := os.ReadFile(idpath)
			if err != nil {
				Fatalf("read hotstuff secret key file failed:%s-%v", idpath, err)
			}
			id = binary.LittleEndian.Uint32(idbytes)
		}
		cfg.Hotstuff.Id.SetUint32(id)

		secpath := ctx.GlobalString(HotstuffSecretFlag.Name)
		if secpath == "" {
			secpath = filepath.Join(stack.DataDir(), "hotstuff-sec")
		}

		secbytes, err := os.ReadFile(secpath)
		if err != nil {
			Fatalf("read hotstuff secret key file failed:%s-%v", secpath, err)
		}
		cfg.Hotstuff.Mine = true
		cfg.Hotstuff.Key = new(bls.PrivateKey)
		cfg.Hotstuff.Key.FromBytes(secbytes)
	}
}

func setPbft(ctx *cli.Context, cfg *eth.Config) {
	if ctx.GlobalIsSet(PbftRequestTimeoutFlag.Name) {
		cfg.Pbft.RequestTimeout = ctx.GlobalUint64(PbftRequestTimeoutFlag.Name)
	}
	if ctx.GlobalIsSet(PbftBlockPeriodFlag.Name) {
		cfg.Pbft.BlockPeriod = ctx.GlobalUint64(PbftBlockPeriodFlag.Name)
	}
	if ctx.GlobalIsSet(PbftEnableLightFlag.Name) {
		cfg.Pbft.LightMode = ctx.GlobalBool(PbftEnableLightFlag.Name)
	}
	if ctx.GlobalIsSet(PbftMaxBlockTxsSealFlag.Name) {
		pbft.MaxBlockTxs = ctx.GlobalUint64(PbftMaxBlockTxsSealFlag.Name)
	}
}

func setMiner(ctx *cli.Context, cfg *miner.Config) {
	if ctx.GlobalIsSet(MinerNotifyFlag.Name) {
		cfg.Notify = strings.Split(ctx.GlobalString(MinerNotifyFlag.Name), ",")
	}
	if ctx.GlobalIsSet(MinerExtraDataFlag.Name) {
		cfg.ExtraData = []byte(ctx.GlobalString(MinerExtraDataFlag.Name))
	}
	if ctx.GlobalIsSet(MinerGasTargetFlag.Name) {
		cfg.GasFloor = ctx.GlobalUint64(MinerGasTargetFlag.Name)
	}
	if ctx.GlobalIsSet(MinerGasLimitFlag.Name) {
		cfg.GasCeil = ctx.GlobalUint64(MinerGasLimitFlag.Name)
	}
	if ctx.GlobalIsSet(MinerGasPriceFlag.Name) {
		cfg.GasPrice = GlobalBig(ctx, MinerGasPriceFlag.Name)
	}
	if ctx.GlobalIsSet(MinerRecommitIntervalFlag.Name) {
		cfg.Recommit = ctx.Duration(MinerRecommitIntervalFlag.Name)
	}
	if ctx.GlobalIsSet(MinerNoVerifyFlag.Name) {
		cfg.Noverify = ctx.Bool(MinerNoVerifyFlag.Name)
	}
	cfg.NoEmptyBlock = ctx.GlobalIsSet(MinerNoEmptyBlockFlag.Name)

	if ctx.GlobalIsSet(MinerTxLimitFlag.Name) {
		cfg.TxLimit = ctx.GlobalInt(MinerTxLimitFlag.Name)
	}
}

func setWhitelist(ctx *cli.Context, cfg *eth.Config) {
	whitelist := ctx.GlobalString(WhitelistFlag.Name)
	if whitelist == "" {
		return
	}
	cfg.Whitelist = make(map[uint64]common.Hash)
	for _, entry := range strings.Split(whitelist, ",") {
		parts := strings.Split(entry, "=")
		if len(parts) != 2 {
			Fatalf("Invalid whitelist entry: %s", entry)
		}
		number, err := strconv.ParseUint(parts[0], 0, 64)
		if err != nil {
			Fatalf("Invalid whitelist block number %s: %v", parts[0], err)
		}
		var hash common.Hash
		if err = hash.UnmarshalText([]byte(parts[1])); err != nil {
			Fatalf("Invalid whitelist hash %s: %v", parts[1], err)
		}
		cfg.Whitelist[number] = hash
	}
}

// CheckExclusive verifies that only a single instance of the provided flags was
// set by the user. Each flag might optionally be followed by a string type to
// specialize it further.
func CheckExclusive(ctx *cli.Context, args ...interface{}) {
	set := make([]string, 0, 1)
	for i := 0; i < len(args); i++ {
		// Make sure the next argument is a flag and skip if not set
		flag, ok := args[i].(cli.Flag)
		if !ok {
			panic(fmt.Sprintf("invalid argument, not cli.Flag type: %T", args[i]))
		}
		// Check if next arg extends current and expand its name if so
		name := flag.GetName()

		if i+1 < len(args) {
			switch option := args[i+1].(type) {
			case string:
				// Extended flag check, make sure value set doesn't conflict with passed in option
				if ctx.GlobalString(flag.GetName()) == option {
					name += "=" + option
					set = append(set, "--"+name)
				}
				// shift arguments and continue
				i++
				continue

			case cli.Flag:
			default:
				panic(fmt.Sprintf("invalid argument, not cli.Flag or string extension: %T", args[i+1]))
			}
		}
		// Mark the flag if it's set
		if ctx.GlobalIsSet(flag.GetName()) {
			set = append(set, "--"+name)
		}
	}
	if len(set) > 1 {
		Fatalf("Flags %v can't be used at the same time", strings.Join(set, ", "))
	}
}

// SetShhConfig applies shh-related command line flags to the config.
func SetShhConfig(ctx *cli.Context, stack *node.Node, cfg *whisper.Config) {
	if ctx.GlobalIsSet(WhisperMaxMessageSizeFlag.Name) {
		cfg.MaxMessageSize = uint32(ctx.GlobalUint(WhisperMaxMessageSizeFlag.Name))
	}
	if ctx.GlobalIsSet(WhisperMinPOWFlag.Name) {
		cfg.MinimumAcceptedPOW = ctx.GlobalFloat64(WhisperMinPOWFlag.Name)
	}
	if ctx.GlobalIsSet(WhisperRestrictConnectionBetweenLightClientsFlag.Name) {
		cfg.RestrictConnectionBetweenLightClients = true
	}
}

// SetEthConfig applies eth-related command line flags to the config.
func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *eth.Config) {
	// Avoid conflicting network flags
	CheckExclusive(ctx, DeveloperFlag, TestnetFlag)
	CheckExclusive(ctx, LightServeFlag, SyncModeFlag, "light")
	CheckExclusive(ctx, DeveloperFlag, ExternalSignerFlag) // Can't use both ephemeral unlocked and external signer

	var ks *keystore.KeyStore
	if keystores := stack.AccountManager().Backends(keystore.KeyStoreType); len(keystores) > 0 {
		ks = keystores[0].(*keystore.KeyStore)
	}
	setEtherbase(ctx, ks, cfg)
	setGPO(ctx, &cfg.GPO)
	setTxPool(ctx, &cfg.TxPool)
	setEthash(ctx, cfg)
	setHotstuff(ctx, stack, cfg)
	setPbft(ctx, cfg)
	setMiner(ctx, &cfg.Miner)
	setWhitelist(ctx, cfg)
	setLes(ctx, cfg)

	if ctx.GlobalIsSet(SyncModeFlag.Name) {
		cfg.SyncMode = *GlobalTextMarshaler(ctx, SyncModeFlag.Name).(*downloader.SyncMode)
	}
	if ctx.GlobalIsSet(NetworkIdFlag.Name) {
		cfg.NetworkId = ctx.GlobalUint64(NetworkIdFlag.Name)
	}
	if ctx.GlobalIsSet(CacheFlag.Name) || ctx.GlobalIsSet(CacheDatabaseFlag.Name) {
		cfg.DatabaseCache = ctx.GlobalInt(CacheFlag.Name) * ctx.GlobalInt(CacheDatabaseFlag.Name) / 100
	}
	cfg.DatabaseHandles = makeDatabaseHandles()
	if ctx.GlobalIsSet(AncientFlag.Name) {
		cfg.DatabaseFreezer = ctx.GlobalString(AncientFlag.Name)
	}

	if gcmode := ctx.GlobalString(GCModeFlag.Name); gcmode != "full" && gcmode != "archive" {
		Fatalf("--%s must be either 'full' or 'archive'", GCModeFlag.Name)
	}
	if ctx.GlobalIsSet(GCModeFlag.Name) {
		cfg.NoPruning = ctx.GlobalString(GCModeFlag.Name) == "archive"
	}
	if ctx.GlobalIsSet(CacheNoPrefetchFlag.Name) {
		cfg.NoPrefetch = ctx.GlobalBool(CacheNoPrefetchFlag.Name)
	}
	if ctx.GlobalIsSet(CacheFlag.Name) || ctx.GlobalIsSet(CacheTrieFlag.Name) {
		cfg.TrieCleanCache = ctx.GlobalInt(CacheFlag.Name) * ctx.GlobalInt(CacheTrieFlag.Name) / 100
	}
	if ctx.GlobalIsSet(CacheFlag.Name) || ctx.GlobalIsSet(CacheGCFlag.Name) {
		cfg.TrieDirtyCache = ctx.GlobalInt(CacheFlag.Name) * ctx.GlobalInt(CacheGCFlag.Name) / 100
	}
	if ctx.GlobalIsSet(DocRootFlag.Name) {
		cfg.DocRoot = ctx.GlobalString(DocRootFlag.Name)
	}
	if ctx.GlobalIsSet(VMEnableDebugFlag.Name) {
		// TODO(fjl): force-enable this in --dev mode
		cfg.EnablePreimageRecording = ctx.GlobalBool(VMEnableDebugFlag.Name)
	}

	if ctx.GlobalIsSet(EWASMInterpreterFlag.Name) {
		cfg.EWASMInterpreter = ctx.GlobalString(EWASMInterpreterFlag.Name)
	}

	if ctx.GlobalIsSet(EVMInterpreterFlag.Name) {
		cfg.EVMInterpreter = ctx.GlobalString(EVMInterpreterFlag.Name)
	}
	if ctx.GlobalIsSet(RPCGlobalGasCap.Name) {
		cfg.RPCGasCap = new(big.Int).SetUint64(ctx.GlobalUint64(RPCGlobalGasCap.Name))
	}

	// Override any default configs for hard coded networks.
	switch {
	case ctx.GlobalBool(TestnetFlag.Name):
		if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
			cfg.NetworkId = 3
		}
		cfg.Genesis = core.DefaultTestnetGenesisBlock()
	case ctx.GlobalBool(DeveloperFlag.Name):
		if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
			cfg.NetworkId = 1337
		}
		// Create new developer account or reuse existing one
		var (
			developer accounts.Account
			err       error
		)
		if accs := ks.Accounts(); len(accs) > 0 {
			developer = ks.Accounts()[0]
		} else {
			developer, err = ks.NewAccount("")
			if err != nil {
				Fatalf("Failed to create developer account: %v", err)
			}
		}
		if err := ks.Unlock(developer, ""); err != nil {
			Fatalf("Failed to unlock developer account: %v", err)
		}
		log.Info("Using developer account", "address", developer.Address)

		cfg.Genesis = core.DeveloperGenesisBlock(uint64(ctx.GlobalInt(DeveloperPeriodFlag.Name)), developer.Address)
		if !ctx.GlobalIsSet(MinerGasPriceFlag.Name) {
			cfg.Miner.GasPrice = big.NewInt(1)
		}
	}
}

// RegisterEthService adds an SimpleService client to the stack.
func RegisterEthService(stack *node.Node, cfg *eth.Config) (<-chan *eth.SimpleService, <-chan *eth.SimpleService) {
	nodeChan := make(chan *eth.SimpleService, 1)
	raftChan := make(chan *eth.SimpleService, 1)
	var err error
	if cfg.SyncMode == downloader.LightSync {
		err = stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
			return les.New(ctx, cfg)
		})
	} else {
		err = stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
			fullNode, err := eth.New(ctx, cfg)
			if fullNode != nil && cfg.LightServ > 0 {
				ls, _ := les.NewLesServer(fullNode, cfg)
				fullNode.AddLesServer(ls)
			}
			nodeChan <- fullNode
			raftChan <- fullNode
			return fullNode, err
		})
	}
	if err != nil {
		Fatalf("Failed to register the SimpleService service: %v", err)
	}
	return nodeChan, raftChan
}

// RegisterShhService configures Whisper and adds it to the given node.
func RegisterShhService(stack *node.Node, cfg *whisper.Config) {
	if err := stack.Register(func(n *node.ServiceContext) (node.Service, error) {
		return whisper.New(cfg), nil
	}); err != nil {
		Fatalf("Failed to register the Whisper service: %v", err)
	}
}

// RegisterEthStatsService configures the SimpleService Stats daemon and adds it to
// the given node.
func RegisterEthStatsService(stack *node.Node, url string) {
	if err := stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
		// Retrieve both eth and les services
		var ethServ *eth.SimpleService
		ctx.Service(&ethServ)

		var lesServ *les.LightEthereum
		ctx.Service(&lesServ)

		// Let ethstats use whichever is not nil
		return ethstats.New(url, ethServ, lesServ)
	}); err != nil {
		Fatalf("Failed to register the SimpleService Stats service: %v", err)
	}
}

// RegisterGraphQLService is a utility function to construct a new service and register it against a node.
func RegisterGraphQLService(stack *node.Node, endpoint string, cors, vhosts []string, timeouts rpc.HTTPTimeouts) {
	if err := stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
		// Try to construct the GraphQL service backed by a full node
		var ethServ *eth.SimpleService
		if err := ctx.Service(&ethServ); err == nil {
			return graphql.New(ethServ.APIBackend, endpoint, cors, vhosts, timeouts)
		}
		// Try to construct the GraphQL service backed by a light node
		var lesServ *les.LightEthereum
		if err := ctx.Service(&lesServ); err == nil {
			return graphql.New(lesServ.ApiBackend, endpoint, cors, vhosts, timeouts)
		}
		// Well, this should not have happened, bail out
		return nil, errors.New("no SimpleService service")
	}); err != nil {
		Fatalf("Failed to register the GraphQL service: %v", err)
	}
}

func SetupMetrics(ctx *cli.Context) {
	if metrics.Enabled {
		log.Info("Enabling metrics collection")
		var (
			enableExport = ctx.GlobalBool(MetricsEnableInfluxDBFlag.Name)
			endpoint     = ctx.GlobalString(MetricsInfluxDBEndpointFlag.Name)
			database     = ctx.GlobalString(MetricsInfluxDBDatabaseFlag.Name)
			username     = ctx.GlobalString(MetricsInfluxDBUsernameFlag.Name)
			password     = ctx.GlobalString(MetricsInfluxDBPasswordFlag.Name)
		)

		if enableExport {
			tagsMap := SplitTagsFlag(ctx.GlobalString(MetricsInfluxDBTagsFlag.Name))

			log.Info("Enabling metrics export to InfluxDB")

			go influxdb.InfluxDBWithTags(metrics.DefaultRegistry, 10*time.Second, endpoint, database, username, password, "geth.", tagsMap)
		}
	}
}

func SplitTagsFlag(tagsFlag string) map[string]string {
	tags := strings.Split(tagsFlag, ",")
	tagsMap := map[string]string{}

	for _, t := range tags {
		if t != "" {
			kv := strings.Split(t, "=")

			if len(kv) == 2 {
				tagsMap[kv[0]] = kv[1]
			}
		}
	}

	return tagsMap
}

// MakeChainDatabase open an LevelDB using the flags passed to the client and will hard crash if it fails.
func MakeChainDatabase(ctx *cli.Context, stack *node.Node) ethdb.Database {
	var (
		cache   = ctx.GlobalInt(CacheFlag.Name) * ctx.GlobalInt(CacheDatabaseFlag.Name) / 100
		handles = makeDatabaseHandles()
	)
	name := "chaindata"
	if ctx.GlobalString(SyncModeFlag.Name) == "light" {
		name = "lightchaindata"
	}
	chainDb, err := stack.OpenDatabaseWithFreezer(name, cache, handles, ctx.GlobalString(AncientFlag.Name), "")
	if err != nil {
		Fatalf("Could not open database: %v", err)
	}
	return chainDb
}

func MakeGenesis(ctx *cli.Context) *core.Genesis {
	var genesis *core.Genesis
	switch {
	case ctx.GlobalBool(TestnetFlag.Name):
		genesis = core.DefaultTestnetGenesisBlock()
	case ctx.GlobalBool(DeveloperFlag.Name):
		Fatalf("Developer chains are ephemeral")
	}
	return genesis
}

// MakeChain creates a chain manager from set command line flags.
func MakeChain(ctx *cli.Context, stack *node.Node) (chain *core.BlockChain, chainDb ethdb.Database) {
	var err error
	chainDb = MakeChainDatabase(ctx, stack)
	config, _, err := core.SetupGenesisBlock(chainDb, MakeGenesis(ctx))
	if err != nil {
		Fatalf("%v", err)
	}
	var engine consensus.Engine
	if config.Clique != nil {
		engine = clique.New(config.Clique, chainDb)
	} else {
		engine = ethash.NewFaker()
		if !ctx.GlobalBool(FakePoWFlag.Name) {
			engine = ethash.New(ethash.Config{
				CacheDir:       stack.ResolvePath(eth.DefaultConfig.Ethash.CacheDir),
				CachesInMem:    eth.DefaultConfig.Ethash.CachesInMem,
				CachesOnDisk:   eth.DefaultConfig.Ethash.CachesOnDisk,
				DatasetDir:     stack.ResolvePath(eth.DefaultConfig.Ethash.DatasetDir),
				DatasetsInMem:  eth.DefaultConfig.Ethash.DatasetsInMem,
				DatasetsOnDisk: eth.DefaultConfig.Ethash.DatasetsOnDisk,
			}, nil, false)
		}
	}
	if gcmode := ctx.GlobalString(GCModeFlag.Name); gcmode != "full" && gcmode != "archive" {
		Fatalf("--%s must be either 'full' or 'archive'", GCModeFlag.Name)
	}
	cache := &core.CacheConfig{
		TrieCleanLimit:      eth.DefaultConfig.TrieCleanCache,
		TrieCleanNoPrefetch: ctx.GlobalBool(CacheNoPrefetchFlag.Name),
		TrieDirtyLimit:      eth.DefaultConfig.TrieDirtyCache,
		TrieDirtyDisabled:   ctx.GlobalString(GCModeFlag.Name) == "archive",
		TrieTimeLimit:       eth.DefaultConfig.TrieTimeout,
	}
	if ctx.GlobalIsSet(CacheFlag.Name) || ctx.GlobalIsSet(CacheTrieFlag.Name) {
		cache.TrieCleanLimit = ctx.GlobalInt(CacheFlag.Name) * ctx.GlobalInt(CacheTrieFlag.Name) / 100
	}
	if ctx.GlobalIsSet(CacheFlag.Name) || ctx.GlobalIsSet(CacheGCFlag.Name) {
		cache.TrieDirtyLimit = ctx.GlobalInt(CacheFlag.Name) * ctx.GlobalInt(CacheGCFlag.Name) / 100
	}
	vmcfg := vm.Config{EnablePreimageRecording: ctx.GlobalBool(VMEnableDebugFlag.Name)}
	chain, err = core.NewBlockChain(chainDb, cache, config, engine, vmcfg, nil)
	if err != nil {
		Fatalf("Can't create BlockChain: %v", err)
	}
	return chain, chainDb
}

// MakeConsolePreloads retrieves the absolute paths for the console JavaScript
// scripts to preload before starting.
func MakeConsolePreloads(ctx *cli.Context) []string {
	// Skip preloading if there's nothing to preload
	if ctx.GlobalString(PreloadJSFlag.Name) == "" {
		return nil
	}
	// Otherwise resolve absolute paths and return them
	var preloads []string

	assets := ctx.GlobalString(JSpathFlag.Name)
	for _, file := range strings.Split(ctx.GlobalString(PreloadJSFlag.Name), ",") {
		preloads = append(preloads, common.AbsolutePath(assets, strings.TrimSpace(file)))
	}
	return preloads
}

// MigrateFlags sets the global flag from a local flag when it's set.
// This is a temporary function used for migrating old command/flags to the
// new format.
//
// e.g. geth account new --keystore /tmp/mykeystore --lightkdf
//
// is equivalent after calling this method with:
//
// geth --keystore /tmp/mykeystore --lightkdf account new
//
// This allows the use of the existing configuration functionality.
// When all flags are migrated this function can be removed and the existing
// configuration functionality must be changed that is uses local flags
func MigrateFlags(action func(ctx *cli.Context) error) func(*cli.Context) error {
	return func(ctx *cli.Context) error {
		for _, name := range ctx.FlagNames() {
			if ctx.IsSet(name) {
				ctx.GlobalSet(name, ctx.String(name))
			}
		}
		return action(ctx)
	}
}

// Configure smart-contract-based permissioning service
func RegisterPermissionService(ctx *cli.Context, stack *node.Node, eth <-chan *eth.SimpleService) {
	if err := stack.Register(func(sctx *node.ServiceContext) (node.Service, error) {
		// start the permissions management service
		tmp1 := <-eth

		pc, err := permission.NewPermissionService(stack, tmp1)
		if err != nil {
			return nil, fmt.Errorf("failed to load the permission contracts as given in %s due to %v", "params.PERMISSION_MODEL_CONFIG", err)
		}
		return pc, nil
	}); err != nil {
		Fatalf("Failed to register the permission service: %v", err)
	}
	log.Info("permission service registered")
}