223 lines
6.3 KiB
Go
223 lines
6.3 KiB
Go
// Copyright 2017 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// go-ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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package main
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import (
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"bufio"
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"errors"
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"fmt"
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"math/big"
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"os"
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"reflect"
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"unicode"
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cli "gopkg.in/urfave/cli.v1"
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"github.com/ethereum/go-ethereum/cmd/utils"
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"github.com/ethereum/go-ethereum/dashboard"
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"github.com/ethereum/go-ethereum/eth"
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"github.com/ethereum/go-ethereum/graphql"
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"github.com/ethereum/go-ethereum/node"
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"github.com/ethereum/go-ethereum/params"
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whisper "github.com/ethereum/go-ethereum/whisper/whisperv6"
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"github.com/naoina/toml"
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)
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var (
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dumpConfigCommand = cli.Command{
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Action: utils.MigrateFlags(dumpConfig),
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Name: "dumpconfig",
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Usage: "Show configuration values",
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ArgsUsage: "",
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Flags: append(append(nodeFlags, rpcFlags...), whisperFlags...),
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Category: "MISCELLANEOUS COMMANDS",
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Description: `The dumpconfig command shows configuration values.`,
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}
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configFileFlag = cli.StringFlag{
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Name: "config",
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Usage: "TOML configuration file",
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}
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)
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// These settings ensure that TOML keys use the same names as Go struct fields.
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var tomlSettings = toml.Config{
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NormFieldName: func(rt reflect.Type, key string) string {
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return key
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},
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FieldToKey: func(rt reflect.Type, field string) string {
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return field
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},
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MissingField: func(rt reflect.Type, field string) error {
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link := ""
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if unicode.IsUpper(rune(rt.Name()[0])) && rt.PkgPath() != "main" {
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link = fmt.Sprintf(", see https://godoc.org/%s#%s for available fields", rt.PkgPath(), rt.Name())
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}
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return fmt.Errorf("field '%s' is not defined in %s%s", field, rt.String(), link)
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},
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}
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type ethstatsConfig struct {
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URL string `toml:",omitempty"`
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}
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type gethConfig struct {
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Eth eth.Config
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Shh whisper.Config
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Node node.Config
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Ethstats ethstatsConfig
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Dashboard dashboard.Config
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}
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func loadConfig(file string, cfg *gethConfig) error {
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f, err := os.Open(file)
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if err != nil {
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return err
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}
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defer f.Close()
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err = tomlSettings.NewDecoder(bufio.NewReader(f)).Decode(cfg)
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// Add file name to errors that have a line number.
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if _, ok := err.(*toml.LineError); ok {
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err = errors.New(file + ", " + err.Error())
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}
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return err
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}
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func defaultNodeConfig() node.Config {
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cfg := node.DefaultConfig
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cfg.Name = clientIdentifier
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cfg.Version = params.VersionWithCommit(gitCommit)
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cfg.HTTPModules = append(cfg.HTTPModules, "eth", "shh")
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cfg.WSModules = append(cfg.WSModules, "eth", "shh")
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cfg.IPCPath = "geth.ipc"
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return cfg
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}
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func makeConfigNode(ctx *cli.Context) (*node.Node, gethConfig) {
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// Load defaults.
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cfg := gethConfig{
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Eth: eth.DefaultConfig,
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Shh: whisper.DefaultConfig,
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Node: defaultNodeConfig(),
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Dashboard: dashboard.DefaultConfig,
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}
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// Load config file.
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if file := ctx.GlobalString(configFileFlag.Name); file != "" {
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if err := loadConfig(file, &cfg); err != nil {
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utils.Fatalf("%v", err)
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}
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}
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// Apply flags.
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utils.SetULC(ctx, &cfg.Eth)
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utils.SetNodeConfig(ctx, &cfg.Node)
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stack, err := node.New(&cfg.Node)
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if err != nil {
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utils.Fatalf("Failed to create the protocol stack: %v", err)
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}
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utils.SetEthConfig(ctx, stack, &cfg.Eth)
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if ctx.GlobalIsSet(utils.EthStatsURLFlag.Name) {
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cfg.Ethstats.URL = ctx.GlobalString(utils.EthStatsURLFlag.Name)
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}
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utils.SetShhConfig(ctx, stack, &cfg.Shh)
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utils.SetDashboardConfig(ctx, &cfg.Dashboard)
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return stack, cfg
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}
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// enableWhisper returns true in case one of the whisper flags is set.
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func enableWhisper(ctx *cli.Context) bool {
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for _, flag := range whisperFlags {
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if ctx.GlobalIsSet(flag.GetName()) {
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return true
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}
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}
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return false
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}
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func makeFullNode(ctx *cli.Context) *node.Node {
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stack, cfg := makeConfigNode(ctx)
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if ctx.GlobalIsSet(utils.ConstantinopleOverrideFlag.Name) {
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cfg.Eth.ConstantinopleOverride = new(big.Int).SetUint64(ctx.GlobalUint64(utils.ConstantinopleOverrideFlag.Name))
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}
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utils.RegisterEthService(stack, &cfg.Eth)
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if ctx.GlobalBool(utils.DashboardEnabledFlag.Name) {
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utils.RegisterDashboardService(stack, &cfg.Dashboard, gitCommit)
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}
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// Whisper must be explicitly enabled by specifying at least 1 whisper flag or in dev mode
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shhEnabled := enableWhisper(ctx)
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shhAutoEnabled := !ctx.GlobalIsSet(utils.WhisperEnabledFlag.Name) && ctx.GlobalIsSet(utils.DeveloperFlag.Name)
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if shhEnabled || shhAutoEnabled {
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if ctx.GlobalIsSet(utils.WhisperMaxMessageSizeFlag.Name) {
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cfg.Shh.MaxMessageSize = uint32(ctx.Int(utils.WhisperMaxMessageSizeFlag.Name))
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}
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if ctx.GlobalIsSet(utils.WhisperMinPOWFlag.Name) {
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cfg.Shh.MinimumAcceptedPOW = ctx.Float64(utils.WhisperMinPOWFlag.Name)
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}
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if ctx.GlobalIsSet(utils.WhisperRestrictConnectionBetweenLightClientsFlag.Name) {
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cfg.Shh.RestrictConnectionBetweenLightClients = true
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}
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utils.RegisterShhService(stack, &cfg.Shh)
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}
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// Configure GraphQL if required
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if ctx.GlobalIsSet(utils.GraphQLEnabledFlag.Name) {
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if err := graphql.RegisterGraphQLService(stack, cfg.Node.GraphQLEndpoint(), cfg.Node.GraphQLCors, cfg.Node.GraphQLVirtualHosts, cfg.Node.HTTPTimeouts); err != nil {
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utils.Fatalf("Failed to register the Ethereum service: %v", err)
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}
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}
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// Add the Ethereum Stats daemon if requested.
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if cfg.Ethstats.URL != "" {
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utils.RegisterEthStatsService(stack, cfg.Ethstats.URL)
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}
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return stack
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}
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// dumpConfig is the dumpconfig command.
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func dumpConfig(ctx *cli.Context) error {
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_, cfg := makeConfigNode(ctx)
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comment := ""
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if cfg.Eth.Genesis != nil {
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cfg.Eth.Genesis = nil
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comment += "# Note: this config doesn't contain the genesis block.\n\n"
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}
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out, err := tomlSettings.Marshal(&cfg)
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if err != nil {
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return err
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}
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dump := os.Stdout
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if ctx.NArg() > 0 {
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dump, err = os.OpenFile(ctx.Args().Get(0), os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
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if err != nil {
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return err
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}
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defer dump.Close()
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}
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dump.WriteString(comment)
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dump.Write(out)
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return nil
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}
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