/*
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/>.
*/
/**
* @authors
* Jeffrey Wilcke <i@jev.io>
*/
package main
import (
"bufio"
"fmt"
"os"
"runtime"
"strconv"
"strings"
"time"
"github.com/codegangsta/cli"
"github.com/ethereum/ethash"
"github.com/ethereum/go-ethereum/cmd/utils"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/core/state"
"github.com/peterh/liner"
)
const (
ClientIdentifier = "Ethereum(G)"
Version = "0.9.2"
)
var (
clilogger = logger.NewLogger("CLI")
app = utils.NewApp(Version, "the go-ethereum command line interface")
)
func init() {
app.Action = run
app.HideVersion = true // we have a command to print the version
app.Commands = []cli.Command{
blocktestCmd,
{
Action: makedag,
Name: "makedag",
Usage: "generate ethash dag (for testing)",
Description: `
The makedag command generates an ethash DAG in /tmp/dag.
This command exists to support the system testing project.
Regular users do not need to execute it.
`,
},
{
Action: version,
Name: "version",
Usage: "print ethereum version numbers",
Description: `
The output of this command is supposed to be machine-readable.
`,
},
{
Action: accountList,
Name: "account",
Usage: "manage accounts",
Subcommands: []cli.Command{
{
Action: accountList,
Name: "list",
Usage: "print account addresses",
},
{
Action: accountCreate,
Name: "new",
Usage: "create a new account",
},
},
},
{
Action: dump,
Name: "dump",
Usage: `dump a specific block from storage`,
Description: `
The arguments are interpreted as block numbers or hashes.
Use "ethereum dump 0" to dump the genesis block.
`,
},
{
Action: console,
Name: "console",
Usage: `Ethereum Console: interactive JavaScript environment`,
Description: `
Console is an interactive shell for the Ethereum JavaScript runtime environment which exposes a node admin interface as well as the DAPP JavaScript API.
See https://github.com/ethereum/go-ethereum/wiki/Frontier-Console
`,
},
{
Action: execJSFiles,
Name: "js",
Usage: `executes the given JavaScript files in the Ethereum Frontier JavaScript VM`,
Description: `
The Ethereum JavaScript VM exposes a node admin interface as well as the DAPP JavaScript API. See https://github.com/ethereum/go-ethereum/wiki/Frontier-Console
`,
},
{
Action: importchain,
Name: "import",
Usage: `import a blockchain file`,
},
{
Action: exportchain,
Name: "export",
Usage: `export blockchain into file`,
},
}
app.Flags = []cli.Flag{
utils.UnlockedAccountFlag,
utils.BootnodesFlag,
utils.DataDirFlag,
utils.JSpathFlag,
utils.ListenPortFlag,
utils.LogFileFlag,
utils.LogJSONFlag,
utils.LogLevelFlag,
utils.MaxPeersFlag,
utils.MinerThreadsFlag,
utils.MiningEnabledFlag,
utils.NATFlag,
utils.NodeKeyFileFlag,
utils.NodeKeyHexFlag,
utils.RPCEnabledFlag,
utils.RPCListenAddrFlag,
utils.RPCPortFlag,
utils.UnencryptedKeysFlag,
utils.VMDebugFlag,
utils.ProtocolVersionFlag,
utils.NetworkIdFlag,
}
// missing:
// flag.StringVar(&ConfigFile, "conf", defaultConfigFile, "config file")
// flag.BoolVar(&DiffTool, "difftool", false, "creates output for diff'ing. Sets LogLevel=0")
// flag.StringVar(&DiffType, "diff", "all", "sets the level of diff output [vm, all]. Has no effect if difftool=false")
// potential subcommands:
// flag.StringVar(&SecretFile, "import", "", "imports the file given (hex or mnemonic formats)")
// flag.StringVar(&ExportDir, "export", "", "exports the session keyring to files in the directory given")
// flag.BoolVar(&GenAddr, "genaddr", false, "create a new priv/pub key")
}
func main() {
runtime.GOMAXPROCS(runtime.NumCPU())
defer logger.Flush()
if err := app.Run(os.Args); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}
func run(ctx *cli.Context) {
fmt.Printf("Welcome to the FRONTIER\n")
utils.HandleInterrupt()
cfg := utils.MakeEthConfig(ClientIdentifier, Version, ctx)
ethereum, err := eth.New(cfg)
if err != nil {
utils.Fatalf("%v", err)
}
startEth(ctx, ethereum)
// this blocks the thread
ethereum.WaitForShutdown()
}
func console(ctx *cli.Context) {
cfg := utils.MakeEthConfig(ClientIdentifier, Version, ctx)
ethereum, err := eth.New(cfg)
if err != nil {
utils.Fatalf("%v", err)
}
startEth(ctx, ethereum)
repl := newJSRE(ethereum, ctx.String(utils.JSpathFlag.Name))
repl.interactive()
ethereum.Stop()
ethereum.WaitForShutdown()
}
func execJSFiles(ctx *cli.Context) {
cfg := utils.MakeEthConfig(ClientIdentifier, Version, ctx)
ethereum, err := eth.New(cfg)
if err != nil {
utils.Fatalf("%v", err)
}
startEth(ctx, ethereum)
repl := newJSRE(ethereum, ctx.String(utils.JSpathFlag.Name))
for _, file := range ctx.Args() {
repl.exec(file)
}
ethereum.Stop()
ethereum.WaitForShutdown()
}
func startEth(ctx *cli.Context, eth *eth.Ethereum) {
utils.StartEthereum(eth)
// Load startup keys. XXX we are going to need a different format
account := ctx.GlobalString(utils.UnlockedAccountFlag.Name)
if len(account) > 0 {
split := strings.Split(account, ":")
if len(split) != 2 {
utils.Fatalf("Illegal 'unlock' format (address:password)")
}
am := eth.AccountManager()
// Attempt to unlock the account
err := am.Unlock(common.FromHex(split[0]), split[1])
if err != nil {
utils.Fatalf("Unlock account failed '%v'", err)
}
}
// Start auxiliary services if enabled.
if ctx.GlobalBool(utils.RPCEnabledFlag.Name) {
utils.StartRPC(eth, ctx)
}
if ctx.GlobalBool(utils.MiningEnabledFlag.Name) {
eth.StartMining()
}
}
func accountList(ctx *cli.Context) {
am := utils.GetAccountManager(ctx)
accts, err := am.Accounts()
if err != nil {
utils.Fatalf("Could not list accounts: %v", err)
}
for _, acct := range accts {
fmt.Printf("Address: %x\n", acct)
}
}
func accountCreate(ctx *cli.Context) {
am := utils.GetAccountManager(ctx)
passphrase := ""
if !ctx.GlobalBool(utils.UnencryptedKeysFlag.Name) {
fmt.Println("The new account will be encrypted with a passphrase.")
fmt.Println("Please enter a passphrase now.")
auth, err := readPassword("Passphrase: ", true)
if err != nil {
utils.Fatalf("%v", err)
}
confirm, err := readPassword("Repeat Passphrase: ", false)
if err != nil {
utils.Fatalf("%v", err)
}
if auth != confirm {
utils.Fatalf("Passphrases did not match.")
}
passphrase = auth
}
acct, err := am.NewAccount(passphrase)
if err != nil {
utils.Fatalf("Could not create the account: %v", err)
}
fmt.Printf("Address: %x\n", acct.Address)
}
func importchain(ctx *cli.Context) {
if len(ctx.Args()) != 1 {
utils.Fatalf("This command requires an argument.")
}
chainmgr, _, _ := utils.GetChain(ctx)
start := time.Now()
err := utils.ImportChain(chainmgr, ctx.Args().First())
if err != nil {
utils.Fatalf("Import error: %v\n", err)
}
fmt.Printf("Import done in %v", time.Since(start))
return
}
func exportchain(ctx *cli.Context) {
if len(ctx.Args()) != 1 {
utils.Fatalf("This command requires an argument.")
}
chainmgr, _, _ := utils.GetChain(ctx)
start := time.Now()
err := utils.ExportChain(chainmgr, ctx.Args().First())
if err != nil {
utils.Fatalf("Export error: %v\n", err)
}
fmt.Printf("Export done in %v", time.Since(start))
return
}
func dump(ctx *cli.Context) {
chainmgr, _, stateDb := utils.GetChain(ctx)
for _, arg := range ctx.Args() {
var block *types.Block
if hashish(arg) {
block = chainmgr.GetBlock(common.HexToHash(arg))
} else {
num, _ := strconv.Atoi(arg)
block = chainmgr.GetBlockByNumber(uint64(num))
}
if block == nil {
fmt.Println("{}")
utils.Fatalf("block not found")
} else {
statedb := state.New(block.Root(), stateDb)
fmt.Printf("%s\n", statedb.Dump())
// fmt.Println(block)
}
}
}
func makedag(ctx *cli.Context) {
chain, _, _ := utils.GetChain(ctx)
pow := ethash.New(chain)
fmt.Println("making cache")
pow.UpdateCache(true)
fmt.Println("making DAG")
pow.UpdateDAG()
}
func version(c *cli.Context) {
fmt.Printf(`%v
Version: %v
Protocol Version: %d
Network Id: %d
GO: %s
OS: %s
GOPATH=%s
GOROOT=%s
`, ClientIdentifier, Version, c.GlobalInt(utils.ProtocolVersionFlag.Name), c.GlobalInt(utils.NetworkIdFlag.Name), runtime.Version(), runtime.GOOS, os.Getenv("GOPATH"), runtime.GOROOT())
}
// hashish returns true for strings that look like hashes.
func hashish(x string) bool {
_, err := strconv.Atoi(x)
return err != nil
}
func readPassword(prompt string, warnTerm bool) (string, error) {
if liner.TerminalSupported() {
lr := liner.NewLiner()
defer lr.Close()
return lr.PasswordPrompt(prompt)
}
if warnTerm {
fmt.Println("!! Unsupported terminal, password will be echoed.")
}
fmt.Print(prompt)
input, err := bufio.NewReader(os.Stdin).ReadString('\n')
fmt.Println()
return input, err
}
