plugeth/cmd/geth/config.go
Sungwoo Kim 7d4db69607
cmd/geth: clarify dumpconfig options (#26729)
Clarifies the documentation around dumpconfi

Signed-off-by: Sungwoo Kim <git@sung-woo.kim>
2023-02-21 02:35:04 -05:00

330 lines
10 KiB
Go

// Copyright 2017 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/>.
package main
import (
"bufio"
"errors"
"fmt"
"os"
"reflect"
"unicode"
"github.com/urfave/cli/v2"
"github.com/ethereum/go-ethereum/accounts/external"
"github.com/ethereum/go-ethereum/accounts/keystore"
"github.com/ethereum/go-ethereum/accounts/scwallet"
"github.com/ethereum/go-ethereum/accounts/usbwallet"
"github.com/ethereum/go-ethereum/cmd/utils"
"github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/eth/ethconfig"
"github.com/ethereum/go-ethereum/internal/ethapi"
"github.com/ethereum/go-ethereum/internal/flags"
"github.com/ethereum/go-ethereum/internal/version"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/params"
"github.com/naoina/toml"
)
var (
dumpConfigCommand = &cli.Command{
Action: dumpConfig,
Name: "dumpconfig",
Usage: "Export configuration values in a TOML format",
ArgsUsage: "<dumpfile (optional)>",
Flags: flags.Merge(nodeFlags, rpcFlags),
Description: `Export configuration values in TOML format (to stdout by default).`,
}
configFileFlag = &cli.StringFlag{
Name: "config",
Usage: "TOML configuration file",
Category: flags.EthCategory,
}
)
// These settings ensure that TOML keys use the same names as Go struct fields.
var tomlSettings = toml.Config{
NormFieldName: func(rt reflect.Type, key string) string {
return key
},
FieldToKey: func(rt reflect.Type, field string) string {
return field
},
MissingField: func(rt reflect.Type, field string) error {
id := fmt.Sprintf("%s.%s", rt.String(), field)
if deprecated(id) {
log.Warn("Config field is deprecated and won't have an effect", "name", id)
return nil
}
var link string
if unicode.IsUpper(rune(rt.Name()[0])) && rt.PkgPath() != "main" {
link = fmt.Sprintf(", see https://godoc.org/%s#%s for available fields", rt.PkgPath(), rt.Name())
}
return fmt.Errorf("field '%s' is not defined in %s%s", field, rt.String(), link)
},
}
type ethstatsConfig struct {
URL string `toml:",omitempty"`
}
type gethConfig struct {
Eth ethconfig.Config
Node node.Config
Ethstats ethstatsConfig
Metrics metrics.Config
}
func loadConfig(file string, cfg *gethConfig) error {
f, err := os.Open(file)
if err != nil {
return err
}
defer f.Close()
err = tomlSettings.NewDecoder(bufio.NewReader(f)).Decode(cfg)
// Add file name to errors that have a line number.
if _, ok := err.(*toml.LineError); ok {
err = errors.New(file + ", " + err.Error())
}
return err
}
func defaultNodeConfig() node.Config {
git, _ := version.VCS()
cfg := node.DefaultConfig
cfg.Name = clientIdentifier
cfg.Version = params.VersionWithCommit(git.Commit, git.Date)
cfg.HTTPModules = append(cfg.HTTPModules, "eth")
cfg.WSModules = append(cfg.WSModules, "eth")
cfg.IPCPath = "geth.ipc"
return cfg
}
// makeConfigNode loads geth configuration and creates a blank node instance.
func makeConfigNode(ctx *cli.Context) (*node.Node, gethConfig) {
// Load defaults.
cfg := gethConfig{
Eth: ethconfig.Defaults,
Node: defaultNodeConfig(),
Metrics: metrics.DefaultConfig,
}
// Load config file.
if file := ctx.String(configFileFlag.Name); file != "" {
if err := loadConfig(file, &cfg); err != nil {
utils.Fatalf("%v", err)
}
}
// Apply flags.
utils.SetNodeConfig(ctx, &cfg.Node)
stack, err := node.New(&cfg.Node)
if err != nil {
utils.Fatalf("Failed to create the protocol stack: %v", err)
}
// Node doesn't by default populate account manager backends
if err := setAccountManagerBackends(stack); err != nil {
utils.Fatalf("Failed to set account manager backends: %v", err)
}
utils.SetEthConfig(ctx, stack, &cfg.Eth)
if ctx.IsSet(utils.EthStatsURLFlag.Name) {
cfg.Ethstats.URL = ctx.String(utils.EthStatsURLFlag.Name)
}
applyMetricConfig(ctx, &cfg)
return stack, cfg
}
// makeFullNode loads geth configuration and creates the Ethereum backend.
func makeFullNode(ctx *cli.Context) (*node.Node, ethapi.Backend) {
stack, cfg := makeConfigNode(ctx)
if ctx.IsSet(utils.OverrideShanghai.Name) {
v := ctx.Uint64(utils.OverrideShanghai.Name)
cfg.Eth.OverrideShanghai = &v
}
backend, eth := utils.RegisterEthService(stack, &cfg.Eth)
// Configure log filter RPC API.
filterSystem := utils.RegisterFilterAPI(stack, backend, &cfg.Eth)
// Configure GraphQL if requested.
if ctx.IsSet(utils.GraphQLEnabledFlag.Name) {
utils.RegisterGraphQLService(stack, backend, filterSystem, &cfg.Node)
}
// Add the Ethereum Stats daemon if requested.
if cfg.Ethstats.URL != "" {
utils.RegisterEthStatsService(stack, backend, cfg.Ethstats.URL)
}
// Configure full-sync tester service if requested
if ctx.IsSet(utils.SyncTargetFlag.Name) && cfg.Eth.SyncMode == downloader.FullSync {
utils.RegisterFullSyncTester(stack, eth, ctx.Path(utils.SyncTargetFlag.Name))
}
return stack, backend
}
// dumpConfig is the dumpconfig command.
func dumpConfig(ctx *cli.Context) error {
_, cfg := makeConfigNode(ctx)
comment := ""
if cfg.Eth.Genesis != nil {
cfg.Eth.Genesis = nil
comment += "# Note: this config doesn't contain the genesis block.\n\n"
}
out, err := tomlSettings.Marshal(&cfg)
if err != nil {
return err
}
dump := os.Stdout
if ctx.NArg() > 0 {
dump, err = os.OpenFile(ctx.Args().Get(0), os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
if err != nil {
return err
}
defer dump.Close()
}
dump.WriteString(comment)
dump.Write(out)
return nil
}
func applyMetricConfig(ctx *cli.Context, cfg *gethConfig) {
if ctx.IsSet(utils.MetricsEnabledFlag.Name) {
cfg.Metrics.Enabled = ctx.Bool(utils.MetricsEnabledFlag.Name)
}
if ctx.IsSet(utils.MetricsEnabledExpensiveFlag.Name) {
cfg.Metrics.EnabledExpensive = ctx.Bool(utils.MetricsEnabledExpensiveFlag.Name)
}
if ctx.IsSet(utils.MetricsHTTPFlag.Name) {
cfg.Metrics.HTTP = ctx.String(utils.MetricsHTTPFlag.Name)
}
if ctx.IsSet(utils.MetricsPortFlag.Name) {
cfg.Metrics.Port = ctx.Int(utils.MetricsPortFlag.Name)
}
if ctx.IsSet(utils.MetricsEnableInfluxDBFlag.Name) {
cfg.Metrics.EnableInfluxDB = ctx.Bool(utils.MetricsEnableInfluxDBFlag.Name)
}
if ctx.IsSet(utils.MetricsInfluxDBEndpointFlag.Name) {
cfg.Metrics.InfluxDBEndpoint = ctx.String(utils.MetricsInfluxDBEndpointFlag.Name)
}
if ctx.IsSet(utils.MetricsInfluxDBDatabaseFlag.Name) {
cfg.Metrics.InfluxDBDatabase = ctx.String(utils.MetricsInfluxDBDatabaseFlag.Name)
}
if ctx.IsSet(utils.MetricsInfluxDBUsernameFlag.Name) {
cfg.Metrics.InfluxDBUsername = ctx.String(utils.MetricsInfluxDBUsernameFlag.Name)
}
if ctx.IsSet(utils.MetricsInfluxDBPasswordFlag.Name) {
cfg.Metrics.InfluxDBPassword = ctx.String(utils.MetricsInfluxDBPasswordFlag.Name)
}
if ctx.IsSet(utils.MetricsInfluxDBTagsFlag.Name) {
cfg.Metrics.InfluxDBTags = ctx.String(utils.MetricsInfluxDBTagsFlag.Name)
}
if ctx.IsSet(utils.MetricsEnableInfluxDBV2Flag.Name) {
cfg.Metrics.EnableInfluxDBV2 = ctx.Bool(utils.MetricsEnableInfluxDBV2Flag.Name)
}
if ctx.IsSet(utils.MetricsInfluxDBTokenFlag.Name) {
cfg.Metrics.InfluxDBToken = ctx.String(utils.MetricsInfluxDBTokenFlag.Name)
}
if ctx.IsSet(utils.MetricsInfluxDBBucketFlag.Name) {
cfg.Metrics.InfluxDBBucket = ctx.String(utils.MetricsInfluxDBBucketFlag.Name)
}
if ctx.IsSet(utils.MetricsInfluxDBOrganizationFlag.Name) {
cfg.Metrics.InfluxDBOrganization = ctx.String(utils.MetricsInfluxDBOrganizationFlag.Name)
}
}
func deprecated(field string) bool {
switch field {
case "ethconfig.Config.EVMInterpreter":
return true
case "ethconfig.Config.EWASMInterpreter":
return true
default:
return false
}
}
func setAccountManagerBackends(stack *node.Node) error {
conf := stack.Config()
am := stack.AccountManager()
keydir := stack.KeyStoreDir()
scryptN := keystore.StandardScryptN
scryptP := keystore.StandardScryptP
if conf.UseLightweightKDF {
scryptN = keystore.LightScryptN
scryptP = keystore.LightScryptP
}
// Assemble the supported backends
if len(conf.ExternalSigner) > 0 {
log.Info("Using external signer", "url", conf.ExternalSigner)
if extapi, err := external.NewExternalBackend(conf.ExternalSigner); err == nil {
am.AddBackend(extapi)
return nil
} else {
return fmt.Errorf("error connecting to external signer: %v", err)
}
}
// For now, we're using EITHER external signer OR local signers.
// If/when we implement some form of lockfile for USB and keystore wallets,
// we can have both, but it's very confusing for the user to see the same
// accounts in both externally and locally, plus very racey.
am.AddBackend(keystore.NewKeyStore(keydir, scryptN, scryptP))
if conf.USB {
// Start a USB hub for Ledger hardware wallets
if ledgerhub, err := usbwallet.NewLedgerHub(); err != nil {
log.Warn(fmt.Sprintf("Failed to start Ledger hub, disabling: %v", err))
} else {
am.AddBackend(ledgerhub)
}
// Start a USB hub for Trezor hardware wallets (HID version)
if trezorhub, err := usbwallet.NewTrezorHubWithHID(); err != nil {
log.Warn(fmt.Sprintf("Failed to start HID Trezor hub, disabling: %v", err))
} else {
am.AddBackend(trezorhub)
}
// Start a USB hub for Trezor hardware wallets (WebUSB version)
if trezorhub, err := usbwallet.NewTrezorHubWithWebUSB(); err != nil {
log.Warn(fmt.Sprintf("Failed to start WebUSB Trezor hub, disabling: %v", err))
} else {
am.AddBackend(trezorhub)
}
}
if len(conf.SmartCardDaemonPath) > 0 {
// Start a smart card hub
if schub, err := scwallet.NewHub(conf.SmartCardDaemonPath, scwallet.Scheme, keydir); err != nil {
log.Warn(fmt.Sprintf("Failed to start smart card hub, disabling: %v", err))
} else {
am.AddBackend(schub)
}
}
return nil
}