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package main
import (
"fmt"
"github.com/ethereum/eth-go"
"github.com/ethereum/eth-go/ethchain"
"github.com/ethereum/eth-go/ethutil"
"github.com/ethereum/go-ethereum/ui"
"github.com/niemeyer/qml"
"github.com/obscuren/secp256k1-go"
"log"
"os"
"os/signal"
"runtime"
)
const Debug = true
// Register interrupt handlers so we can stop the ethereum
func RegisterInterupts(s *eth.Ethereum) {
// Buffered chan of one is enough
c := make(chan os.Signal, 1)
// Notify about interrupts for now
signal.Notify(c, os.Interrupt)
go func() {
for sig := range c {
fmt.Printf("Shutting down (%v) ... \n", sig)
s.Stop()
}
}()
}
func CreateKeyPair(force bool) {
data, _ := ethutil.Config.Db.Get([]byte("KeyRing"))
if len(data) == 0 || force {
pub, prv := secp256k1.GenerateKeyPair()
addr := ethutil.Sha3Bin(pub[1:])[12:]
fmt.Printf(`
Generating new address and keypair.
Please keep your keys somewhere save.
++++++++++++++++ KeyRing +++++++++++++++++++
addr: %x
prvk: %x
pubk: %x
++++++++++++++++++++++++++++++++++++++++++++
`, addr, prv, pub)
keyRing := ethutil.NewValue([]interface{}{prv, addr, pub[1:]})
ethutil.Config.Db.Put([]byte("KeyRing"), keyRing.Encode())
}
}
func ImportPrivateKey(prvKey string) {
key := ethutil.FromHex(prvKey)
msg := []byte("tmp")
// Couldn't think of a better way to get the pub key
sig, _ := secp256k1.Sign(msg, key)
pub, _ := secp256k1.RecoverPubkey(msg, sig)
addr := ethutil.Sha3Bin(pub[1:])[12:]
fmt.Printf(`
Importing private key
++++++++++++++++ KeyRing +++++++++++++++++++
addr: %x
prvk: %x
pubk: %x
++++++++++++++++++++++++++++++++++++++++++++
`, addr, key, pub)
keyRing := ethutil.NewValue([]interface{}{key, addr, pub[1:]})
ethutil.Config.Db.Put([]byte("KeyRing"), keyRing.Encode())
}
func main() {
Init()
// Qt has to be initialized in the main thread or it will throw errors
// It has to be called BEFORE setting the maximum procs.
if UseGui {
qml.Init(nil)
}
runtime.GOMAXPROCS(runtime.NumCPU())
ethchain.InitFees()
ethutil.ReadConfig(DataDir)
ethutil.Config.Seed = UseSeed
// Instantiated a eth stack
ethereum, err := eth.New(eth.CapDefault, UseUPnP)
ethereum.Port = OutboundPort
if err != nil {
log.Println("eth start err:", err)
return
}
if GenAddr {
fmt.Println("This action overwrites your old private key. Are you sure? (y/n)")
var r string
fmt.Scanln(&r)
for ; ; fmt.Scanln(&r) {
if r == "n" || r == "y" {
break
} else {
fmt.Printf("Yes or no?", r)
}
}
if r == "y" {
CreateKeyPair(true)
}
os.Exit(0)
} else {
if len(ImportKey) > 0 {
fmt.Println("This action overwrites your old private key. Are you sure? (y/n)")
var r string
fmt.Scanln(&r)
for ; ; fmt.Scanln(&r) {
if r == "n" || r == "y" {
break
} else {
fmt.Printf("Yes or no?", r)
}
}
if r == "y" {
ImportPrivateKey(ImportKey)
}
} else {
CreateKeyPair(false)
}
}
if ExportKey {
data, _ := ethutil.Config.Db.Get([]byte("KeyRing"))
keyRing := ethutil.NewValueFromBytes(data)
fmt.Printf("%x\n", keyRing.Get(0).Bytes())
os.Exit(0)
}
if ShowGenesis {
fmt.Println(ethereum.BlockManager.BlockChain().Genesis())
os.Exit(0)
}
log.Printf("Starting Ethereum v%s\n", ethutil.Config.Ver)
// Set the max peers
ethereum.MaxPeers = MaxPeer
if StartConsole {
err := os.Mkdir(ethutil.Config.ExecPath, os.ModePerm)
// Error is OK if the error is ErrExist
if err != nil && !os.IsExist(err) {
log.Panic("Unable to create EXECPATH:", err)
}
console := NewConsole(ethereum)
go console.Start()
}
if UseGui {
gui := ethui.New(ethereum)
gui.Start()
//ethereum.Stop()
} else {
RegisterInterupts(ethereum)
ethereum.Start()
if StartMining {
log.Printf("Miner started\n")
// Fake block mining. It broadcasts a new block every 5 seconds
go func() {
pow := ðchain.EasyPow{}
data, _ := ethutil.Config.Db.Get([]byte("KeyRing"))
keyRing := ethutil.NewValueFromBytes(data)
addr := keyRing.Get(1).Bytes()
for {
txs := ethereum.TxPool.Flush()
// Create a new block which we're going to mine
block := ethereum.BlockManager.BlockChain().NewBlock(addr, txs)
// Apply all transactions to the block
ethereum.BlockManager.ApplyTransactions(block, block.Transactions())
ethereum.BlockManager.AccumelateRewards(block, block)
// Search the nonce
block.Nonce = pow.Search(block)
err := ethereum.BlockManager.ProcessBlock(block)
if err != nil {
log.Println(err)
} else {
log.Println("\n+++++++ MINED BLK +++++++\n", ethereum.BlockManager.BlockChain().CurrentBlock)
}
}
}()
}
// Wait for shutdown
ethereum.WaitForShutdown()
}
}
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