// Copyright 2015 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 utils contains internal helper functions for go-ethereum commands.
package utils
import (
"crypto/ecdsa"
"fmt"
"io/ioutil"
"math/big"
"os"
"path/filepath"
"runtime"
"strconv"
"strings"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/accounts/keystore"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/consensus/clique"
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/dashboard"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/eth/gasprice"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/ethstats"
"github.com/ethereum/go-ethereum/les"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/discover"
"github.com/ethereum/go-ethereum/p2p/discv5"
"github.com/ethereum/go-ethereum/p2p/nat"
"github.com/ethereum/go-ethereum/p2p/netutil"
"github.com/ethereum/go-ethereum/params"
whisper "github.com/ethereum/go-ethereum/whisper/whisperv5"
"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}}{{.cmd.Name}}{{with .cmd.ShortName}}, {{.cmd}}{{end}}{{ "\t" }}{{.cmd.Usage}}
{{end}}{{end}}{{if .categorizedFlags}}
{{range $idx, $categorized := .categorizedFlags}}{{$categorized.Name}} OPTIONS:
{{range $categorized.Flags}}{{"\t"}}{{.}}
{{end}}
{{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
}
// NewApp creates an app with sane defaults.
func NewApp(gitCommit, usage string) *cli.App {
app := cli.NewApp()
app.Name = filepath.Base(os.Args[0])
app.Author = ""
//app.Authors = nil
app.Email = ""
app.Version = params.Version
if gitCommit != "" {
app.Version += "-" + gitCommit[:8]
}
app.Usage = usage
return app
}
// 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.
var (
// General settings
DataDirFlag = DirectoryFlag{
Name: "datadir",
Usage: "Data directory for the databases and keystore",
Value: DirectoryString{node.DefaultDataDir()},
}
KeyStoreDirFlag = DirectoryFlag{
Name: "keystore",
Usage: "Directory for the keystore (default = inside the datadir)",
}
NoUSBFlag = cli.BoolFlag{
Name: "nousb",
Usage: "Disables monitoring for and managing USB hardware wallets",
}
NetworkIdFlag = cli.Uint64Flag{
Name: "networkid",
Usage: "Network identifier (integer, 1=Frontier, 2=Morden (disused), 3=Ropsten, 4=Rinkeby)",
Value: eth.DefaultConfig.NetworkId,
}
TestnetFlag = cli.BoolFlag{
Name: "testnet",
Usage: "Ropsten network: pre-configured proof-of-work test network",
}
RinkebyFlag = cli.BoolFlag{
Name: "rinkeby",
Usage: "Rinkeby network: pre-configured proof-of-authority test network",
}
DeveloperFlag = cli.BoolFlag{
Name: "dev",
Usage: "Ephemeral proof-of-authority network with a pre-funded developer account, mining enabled",
}
DeveloperPeriodFlag = cli.IntFlag{
Name: "dev.period",
Usage: "Block period to use in developer mode (0 = mine only if transaction pending)",
}
IdentityFlag = cli.StringFlag{
Name: "identity",
Usage: "Custom node name",
}
DocRootFlag = DirectoryFlag{
Name: "docroot",
Usage: "Document Root for HTTPClient file scheme",
Value: DirectoryString{homeDir()},
}
FastSyncFlag = cli.BoolFlag{
Name: "fast",
Usage: "Enable fast syncing through state downloads",
}
LightModeFlag = cli.BoolFlag{
Name: "light",
Usage: "Enable light client mode",
}
defaultSyncMode = eth.DefaultConfig.SyncMode
SyncModeFlag = TextMarshalerFlag{
Name: "syncmode",
Usage: `Blockchain sync mode ("fast", "full", or "light")`,
Value: &defaultSyncMode,
}
LightServFlag = cli.IntFlag{
Name: "lightserv",
Usage: "Maximum percentage of time allowed for serving LES requests (0-90)",
Value: 0,
}
LightPeersFlag = cli.IntFlag{
Name: "lightpeers",
Usage: "Maximum number of LES client peers",
Value: 20,
}
LightKDFFlag = cli.BoolFlag{
Name: "lightkdf",
Usage: "Reduce key-derivation RAM & CPU usage at some expense of KDF strength",
}
// Dashboard settings
DashboardEnabledFlag = cli.BoolFlag{
Name: "dashboard",
Usage: "Enable the dashboard",
}
DashboardAddrFlag = cli.StringFlag{
Name: "dashboard.addr",
Usage: "Dashboard listening interface",
Value: dashboard.DefaultConfig.Host,
}
DashboardPortFlag = cli.IntFlag{
Name: "dashboard.host",
Usage: "Dashboard listening port",
Value: dashboard.DefaultConfig.Port,
}
DashboardRefreshFlag = cli.DurationFlag{
Name: "dashboard.refresh",
Usage: "Dashboard metrics collection refresh rate",
Value: dashboard.DefaultConfig.Refresh,
}
DashboardAssetsFlag = cli.StringFlag{
Name: "dashboard.assets",
Usage: "Developer flag to serve the dashboard from the local file system",
Value: dashboard.DefaultConfig.Assets,
}
// Ethash settings
EthashCacheDirFlag = DirectoryFlag{
Name: "ethash.cachedir",
Usage: "Directory to store the ethash verification caches (default = inside the datadir)",
}
EthashCachesInMemoryFlag = cli.IntFlag{
Name: "ethash.cachesinmem",
Usage: "Number of recent ethash caches to keep in memory (16MB each)",
Value: eth.DefaultConfig.Ethash.CachesInMem,
}
EthashCachesOnDiskFlag = cli.IntFlag{
Name: "ethash.cachesondisk",
Usage: "Number of recent ethash caches to keep on disk (16MB each)",
Value: eth.DefaultConfig.Ethash.CachesOnDisk,
}
EthashDatasetDirFlag = DirectoryFlag{
Name: "ethash.dagdir",
Usage: "Directory to store the ethash mining DAGs (default = inside home folder)",
Value: DirectoryString{eth.DefaultConfig.Ethash.DatasetDir},
}
EthashDatasetsInMemoryFlag = cli.IntFlag{
Name: "ethash.dagsinmem",
Usage: "Number of recent ethash mining DAGs to keep in memory (1+GB each)",
Value: eth.DefaultConfig.Ethash.DatasetsInMem,
}
EthashDatasetsOnDiskFlag = cli.IntFlag{
Name: "ethash.dagsondisk",
Usage: "Number of recent ethash mining DAGs to keep on disk (1+GB each)",
Value: eth.DefaultConfig.Ethash.DatasetsOnDisk,
}
// Transaction pool settings
TxPoolNoLocalsFlag = cli.BoolFlag{
Name: "txpool.nolocals",
Usage: "Disables price exemptions for locally submitted transactions",
}
TxPoolJournalFlag = cli.StringFlag{
Name: "txpool.journal",
Usage: "Disk journal for local transaction to survive node restarts",
Value: core.DefaultTxPoolConfig.Journal,
}
TxPoolRejournalFlag = cli.DurationFlag{
Name: "txpool.rejournal",
Usage: "Time interval to regenerate the local transaction journal",
Value: core.DefaultTxPoolConfig.Rejournal,
}
TxPoolPriceLimitFlag = cli.Uint64Flag{
Name: "txpool.pricelimit",
Usage: "Minimum gas price limit to enforce for acceptance into the pool",
Value: eth.DefaultConfig.TxPool.PriceLimit,
}
TxPoolPriceBumpFlag = cli.Uint64Flag{
Name: "txpool.pricebump",
Usage: "Price bump percentage to replace an already existing transaction",
Value: eth.DefaultConfig.TxPool.PriceBump,
}
TxPoolAccountSlotsFlag = cli.Uint64Flag{
Name: "txpool.accountslots",
Usage: "Minimum number of executable transaction slots guaranteed per account",
Value: eth.DefaultConfig.TxPool.AccountSlots,
}
TxPoolGlobalSlotsFlag = cli.Uint64Flag{
Name: "txpool.globalslots",
Usage: "Maximum number of executable transaction slots for all accounts",
Value: eth.DefaultConfig.TxPool.GlobalSlots,
}
TxPoolAccountQueueFlag = cli.Uint64Flag{
Name: "txpool.accountqueue",
Usage: "Maximum number of non-executable transaction slots permitted per account",
Value: eth.DefaultConfig.TxPool.AccountQueue,
}
TxPoolGlobalQueueFlag = cli.Uint64Flag{
Name: "txpool.globalqueue",
Usage: "Maximum number of non-executable transaction slots for all accounts",
Value: eth.DefaultConfig.TxPool.GlobalQueue,
}
TxPoolLifetimeFlag = cli.DurationFlag{
Name: "txpool.lifetime",
Usage: "Maximum amount of time non-executable transaction are queued",
Value: eth.DefaultConfig.TxPool.Lifetime,
}
// Performance tuning settings
CacheFlag = cli.IntFlag{
Name: "cache",
Usage: "Megabytes of memory allocated to internal caching (min 16MB / database forced)",
Value: 128,
}
TrieCacheGenFlag = cli.IntFlag{
Name: "trie-cache-gens",
Usage: "Number of trie node generations to keep in memory",
Value: int(state.MaxTrieCacheGen),
}
// Miner settings
MiningEnabledFlag = cli.BoolFlag{
Name: "mine",
Usage: "Enable mining",
}
MinerThreadsFlag = cli.IntFlag{
Name: "minerthreads",
Usage: "Number of CPU threads to use for mining",
Value: runtime.NumCPU(),
}
TargetGasLimitFlag = cli.Uint64Flag{
Name: "targetgaslimit",
Usage: "Target gas limit sets the artificial target gas floor for the blocks to mine",
Value: params.GenesisGasLimit.Uint64(),
}
EtherbaseFlag = cli.StringFlag{
Name: "etherbase",
Usage: "Public address for block mining rewards (default = first account created)",
Value: "0",
}
GasPriceFlag = BigFlag{
Name: "gasprice",
Usage: "Minimal gas price to accept for mining a transactions",
Value: eth.DefaultConfig.GasPrice,
}
ExtraDataFlag = cli.StringFlag{
Name: "extradata",
Usage: "Block extra data set by the miner (default = client version)",
}
// Account settings
UnlockedAccountFlag = cli.StringFlag{
Name: "unlock",
Usage: "Comma separated list of accounts to unlock",
Value: "",
}
PasswordFileFlag = cli.StringFlag{
Name: "password",
Usage: "Password file to use for non-interactive password input",
Value: "",
}
VMEnableDebugFlag = cli.BoolFlag{
Name: "vmdebug",
Usage: "Record information useful for VM and contract debugging",
}
// Logging and debug settings
EthStatsURLFlag = cli.StringFlag{
Name: "ethstats",
Usage: "Reporting URL of a ethstats service (nodename:secret@host:port)",
}
MetricsEnabledFlag = cli.BoolFlag{
Name: metrics.MetricsEnabledFlag,
Usage: "Enable metrics collection and reporting",
}
FakePoWFlag = cli.BoolFlag{
Name: "fakepow",
Usage: "Disables proof-of-work verification",
}
NoCompactionFlag = cli.BoolFlag{
Name: "nocompaction",
Usage: "Disables db compaction after import",
}
// RPC settings
RPCEnabledFlag = cli.BoolFlag{
Name: "rpc",
Usage: "Enable the HTTP-RPC server",
}
RPCListenAddrFlag = cli.StringFlag{
Name: "rpcaddr",
Usage: "HTTP-RPC server listening interface",
Value: node.DefaultHTTPHost,
}
RPCPortFlag = cli.IntFlag{
Name: "rpcport",
Usage: "HTTP-RPC server listening port",
Value: node.DefaultHTTPPort,
}
RPCCORSDomainFlag = cli.StringFlag{
Name: "rpccorsdomain",
Usage: "Comma separated list of domains from which to accept cross origin requests (browser enforced)",
Value: "",
}
RPCApiFlag = cli.StringFlag{
Name: "rpcapi",
Usage: "API's offered over the HTTP-RPC interface",
Value: "",
}
IPCDisabledFlag = cli.BoolFlag{
Name: "ipcdisable",
Usage: "Disable the IPC-RPC server",
}
IPCPathFlag = DirectoryFlag{
Name: "ipcpath",
Usage: "Filename for IPC socket/pipe within the datadir (explicit paths escape it)",
}
WSEnabledFlag = cli.BoolFlag{
Name: "ws",
Usage: "Enable the WS-RPC server",
}
WSListenAddrFlag = cli.StringFlag{
Name: "wsaddr",
Usage: "WS-RPC server listening interface",
Value: node.DefaultWSHost,
}
WSPortFlag = cli.IntFlag{
Name: "wsport",
Usage: "WS-RPC server listening port",
Value: node.DefaultWSPort,
}
WSApiFlag = cli.StringFlag{
Name: "wsapi",
Usage: "API's offered over the WS-RPC interface",
Value: "",
}
WSAllowedOriginsFlag = cli.StringFlag{
Name: "wsorigins",
Usage: "Origins from which to accept websockets requests",
Value: "",
}
ExecFlag = cli.StringFlag{
Name: "exec",
Usage: "Execute JavaScript statement",
}
PreloadJSFlag = cli.StringFlag{
Name: "preload",
Usage: "Comma separated list of JavaScript files to preload into the console",
}
// Network Settings
MaxPeersFlag = cli.IntFlag{
Name: "maxpeers",
Usage: "Maximum number of network peers (network disabled if set to 0)",
Value: 25,
}
MaxPendingPeersFlag = cli.IntFlag{
Name: "maxpendpeers",
Usage: "Maximum number of pending connection attempts (defaults used if set to 0)",
Value: 0,
}
ListenPortFlag = cli.IntFlag{
Name: "port",
Usage: "Network listening port",
Value: 30303,
}
BootnodesFlag = cli.StringFlag{
Name: "bootnodes",
Usage: "Comma separated enode URLs for P2P discovery bootstrap (set v4+v5 instead for light servers)",
Value: "",
}
BootnodesV4Flag = cli.StringFlag{
Name: "bootnodesv4",
Usage: "Comma separated enode URLs for P2P v4 discovery bootstrap (light server, full nodes)",
Value: "",
}
BootnodesV5Flag = cli.StringFlag{
Name: "bootnodesv5",
Usage: "Comma separated enode URLs for P2P v5 discovery bootstrap (light server, light nodes)",
Value: "",
}
NodeKeyFileFlag = cli.StringFlag{
Name: "nodekey",
Usage: "P2P node key file",
}
NodeKeyHexFlag = cli.StringFlag{
Name: "nodekeyhex",
Usage: "P2P node key as hex (for testing)",
}
NATFlag = cli.StringFlag{
Name: "nat",
Usage: "NAT port mapping mechanism (any|none|upnp|pmp|extip:<IP>)",
Value: "any",
}
NoDiscoverFlag = cli.BoolFlag{
Name: "nodiscover",
Usage: "Disables the peer discovery mechanism (manual peer addition)",
}
DiscoveryV5Flag = cli.BoolFlag{
Name: "v5disc",
Usage: "Enables the experimental RLPx V5 (Topic Discovery) mechanism",
}
NetrestrictFlag = cli.StringFlag{
Name: "netrestrict",
Usage: "Restricts network communication to the given IP networks (CIDR masks)",
}
// ATM the url is left to the user and deployment to
JSpathFlag = cli.StringFlag{
Name: "jspath",
Usage: "JavaScript root path for `loadScript`",
Value: ".",
}
// Gas price oracle settings
GpoBlocksFlag = cli.IntFlag{
Name: "gpoblocks",
Usage: "Number of recent blocks to check for gas prices",
Value: eth.DefaultConfig.GPO.Blocks,
}
GpoPercentileFlag = cli.IntFlag{
Name: "gpopercentile",
Usage: "Suggested gas price is the given percentile of a set of recent transaction gas prices",
Value: eth.DefaultConfig.GPO.Percentile,
}
WhisperEnabledFlag = cli.BoolFlag{
Name: "shh",
Usage: "Enable Whisper",
}
WhisperMaxMessageSizeFlag = cli.IntFlag{
Name: "shh.maxmessagesize",
Usage: "Max message size accepted",
Value: int(whisper.DefaultMaxMessageSize),
}
WhisperMinPOWFlag = cli.Float64Flag{
Name: "shh.pow",
Usage: "Minimum POW accepted",
Value: whisper.DefaultMinimumPoW,
}
)
// 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")
}
if ctx.GlobalBool(RinkebyFlag.Name) {
return filepath.Join(path, "rinkeby")
}
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 ctx.GlobalBool(RinkebyFlag.Name):
urls = params.RinkebyBootnodes
}
cfg.BootstrapNodes = make([]*discover.Node, 0, len(urls))
for _, url := range urls {
node, err := discover.ParseNode(url)
if err != nil {
log.Error("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 ctx.GlobalBool(RinkebyFlag.Name):
urls = params.RinkebyV5Bootnodes
case cfg.BootstrapNodesV5 != nil:
return // already set, don't apply defaults.
}
cfg.BootstrapNodesV5 = make([]*discv5.Node, 0, len(urls))
for _, url := range urls {
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))
}
}
// setDiscoveryV5Address creates a UDP listening address string from set command
// line flags for the V5 discovery protocol.
func setDiscoveryV5Address(ctx *cli.Context, cfg *p2p.Config) {
if ctx.GlobalIsSet(ListenPortFlag.Name) {
cfg.DiscoveryV5Addr = fmt.Sprintf(":%d", ctx.GlobalInt(ListenPortFlag.Name)+1)
}
}
// 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))
}
}
// 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)
}
}
// 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 {
if err := raiseFdLimit(2048); err != nil {
Fatalf("Failed to raise file descriptor allowance: %v", err)
}
limit, err := getFdLimit()
if err != nil {
Fatalf("Failed to retrieve file descriptor allowance: %v", err)
}
if limit > 2048 { // cap database file descriptors even if more is available
limit = 2048
}
return limit / 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)
}
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) {
if ctx.GlobalIsSet(EtherbaseFlag.Name) {
account, err := MakeAddress(ks, ctx.GlobalString(EtherbaseFlag.Name))
if err != nil {
Fatalf("Option %q: %v", EtherbaseFlag.Name, err)
}
cfg.Etherbase = account.Address
return
}
accounts := ks.Accounts()
if (cfg.Etherbase == common.Address{}) {
if len(accounts) > 0 {
cfg.Etherbase = accounts[0].Address
} else {
log.Warn("No etherbase set and no accounts found as default")
}
}
}
// 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)
setDiscoveryV5Address(ctx, cfg)
setBootstrapNodes(ctx, cfg)
setBootstrapNodesV5(ctx, cfg)
if ctx.GlobalIsSet(MaxPeersFlag.Name) {
cfg.MaxPeers = ctx.GlobalInt(MaxPeersFlag.Name)
}
if ctx.GlobalIsSet(MaxPendingPeersFlag.Name) {
cfg.MaxPendingPeers = ctx.GlobalInt(MaxPendingPeersFlag.Name)
}
if ctx.GlobalIsSet(NoDiscoverFlag.Name) || ctx.GlobalBool(LightModeFlag.Name) {
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 := (ctx.GlobalBool(LightModeFlag.Name) || ctx.GlobalInt(LightServFlag.Name) > 0) && !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.DiscoveryV5Addr = ":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)
setWS(ctx, cfg)
setNodeUserIdent(ctx, cfg)
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 = filepath.Join(node.DefaultDataDir(), "testnet")
case ctx.GlobalBool(RinkebyFlag.Name):
cfg.DataDir = filepath.Join(node.DefaultDataDir(), "rinkeby")
}
if ctx.GlobalIsSet(KeyStoreDirFlag.Name) {
cfg.KeyStoreDir = ctx.GlobalString(KeyStoreDirFlag.Name)
}
if ctx.GlobalIsSet(LightKDFFlag.Name) {
cfg.UseLightweightKDF = ctx.GlobalBool(LightKDFFlag.Name)
}
if ctx.GlobalIsSet(NoUSBFlag.Name) {
cfg.NoUSB = ctx.GlobalBool(NoUSBFlag.Name)
}
}
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(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)
}
}
// checkExclusive verifies that only a single isntance 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, expand the name and shift the arguments
if ctx.GlobalString(flag.GetName()) == option {
name += "=" + option
}
i++
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)
}
}
// 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, RinkebyFlag)
checkExclusive(ctx, FastSyncFlag, LightModeFlag, SyncModeFlag)
checkExclusive(ctx, LightServFlag, LightModeFlag)
checkExclusive(ctx, LightServFlag, SyncModeFlag, "light")
ks := stack.AccountManager().Backends(keystore.KeyStoreType)[0].(*keystore.KeyStore)
setEtherbase(ctx, ks, cfg)
setGPO(ctx, &cfg.GPO)
setTxPool(ctx, &cfg.TxPool)
setEthash(ctx, cfg)
switch {
case ctx.GlobalIsSet(SyncModeFlag.Name):
cfg.SyncMode = *GlobalTextMarshaler(ctx, SyncModeFlag.Name).(*downloader.SyncMode)
case ctx.GlobalBool(FastSyncFlag.Name):
cfg.SyncMode = downloader.FastSync
case ctx.GlobalBool(LightModeFlag.Name):
cfg.SyncMode = downloader.LightSync
}
if ctx.GlobalIsSet(LightServFlag.Name) {
cfg.LightServ = ctx.GlobalInt(LightServFlag.Name)
}
if ctx.GlobalIsSet(LightPeersFlag.Name) {
cfg.LightPeers = ctx.GlobalInt(LightPeersFlag.Name)
}
if ctx.GlobalIsSet(NetworkIdFlag.Name) {
cfg.NetworkId = ctx.GlobalUint64(NetworkIdFlag.Name)
}
if ctx.GlobalIsSet(CacheFlag.Name) {
cfg.DatabaseCache = ctx.GlobalInt(CacheFlag.Name)
}
cfg.DatabaseHandles = makeDatabaseHandles()
if ctx.GlobalIsSet(MinerThreadsFlag.Name) {
cfg.MinerThreads = ctx.GlobalInt(MinerThreadsFlag.Name)
}
if ctx.GlobalIsSet(DocRootFlag.Name) {
cfg.DocRoot = ctx.GlobalString(DocRootFlag.Name)
}
if ctx.GlobalIsSet(ExtraDataFlag.Name) {
cfg.ExtraData = []byte(ctx.GlobalString(ExtraDataFlag.Name))
}
if ctx.GlobalIsSet(GasPriceFlag.Name) {
cfg.GasPrice = GlobalBig(ctx, GasPriceFlag.Name)
}
if ctx.GlobalIsSet(VMEnableDebugFlag.Name) {
// TODO(fjl): force-enable this in --dev mode
cfg.EnablePreimageRecording = ctx.GlobalBool(VMEnableDebugFlag.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(RinkebyFlag.Name):
if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
cfg.NetworkId = 4
}
cfg.Genesis = core.DefaultRinkebyGenesisBlock()
case ctx.GlobalBool(DeveloperFlag.Name):
// 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(GasPriceFlag.Name) {
cfg.GasPrice = big.NewInt(1)
}
}
// TODO(fjl): move trie cache generations into config
if gen := ctx.GlobalInt(TrieCacheGenFlag.Name); gen > 0 {
state.MaxTrieCacheGen = uint16(gen)
}
}
// SetDashboardConfig applies dashboard related command line flags to the config.
func SetDashboardConfig(ctx *cli.Context, cfg *dashboard.Config) {
cfg.Host = ctx.GlobalString(DashboardAddrFlag.Name)
cfg.Port = ctx.GlobalInt(DashboardPortFlag.Name)
cfg.Refresh = ctx.GlobalDuration(DashboardRefreshFlag.Name)
cfg.Assets = ctx.GlobalString(DashboardAssetsFlag.Name)
}
// RegisterEthService adds an Ethereum client to the stack.
func RegisterEthService(stack *node.Node, cfg *eth.Config) {
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)
}
return fullNode, err
})
}
if err != nil {
Fatalf("Failed to register the Ethereum service: %v", err)
}
}
// RegisterDashboardService adds a dashboard to the stack.
func RegisterDashboardService(stack *node.Node, cfg *dashboard.Config) {
stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
return dashboard.New(cfg)
})
}
// 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 Ethereum Stats daemon and adds it to
// th egiven 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.Ethereum
ctx.Service(ðServ)
var lesServ *les.LightEthereum
ctx.Service(&lesServ)
return ethstats.New(url, ethServ, lesServ)
}); err != nil {
Fatalf("Failed to register the Ethereum Stats service: %v", err)
}
}
// SetupNetwork configures the system for either the main net or some test network.
func SetupNetwork(ctx *cli.Context) {
// TODO(fjl): move target gas limit into config
params.TargetGasLimit = new(big.Int).SetUint64(ctx.GlobalUint64(TargetGasLimitFlag.Name))
}
// 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)
handles = makeDatabaseHandles()
)
name := "chaindata"
if ctx.GlobalBool(LightModeFlag.Name) {
name = "lightchaindata"
}
chainDb, err := stack.OpenDatabase(name, cache, handles)
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(RinkebyFlag.Name):
genesis = core.DefaultRinkebyGenesisBlock()
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,
})
}
}
vmcfg := vm.Config{EnablePreimageRecording: ctx.GlobalBool(VMEnableDebugFlag.Name)}
chain, err = core.NewBlockChain(chainDb, config, engine, vmcfg)
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
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)
}
}