// New creates a Ethereum client, pre-configured to one of the supported networks.
func New(datadir string, network EthereumNetwork) (*Geth, error) {
// Tag the data dir with the network name
switch network {
case MainNet:
datadir = filepath.Join(datadir, "mainnet")
case TestNet:
datadir = filepath.Join(datadir, "testnet")
default:
return nil, fmt.Errorf("unsupported network: %v", network)
}
// Select the bootstrap nodes based on the network
bootnodes := utils.FrontierBootNodes
if network == TestNet {
bootnodes = utils.TestNetBootNodes
}
// Configure the node's service container
stackConf := &node.Config{
DataDir: datadir,
Name: common.MakeName(NodeName, NodeVersion),
BootstrapNodes: bootnodes,
ListenAddr: fmt.Sprintf(":%d", NodePort),
MaxPeers: NodeMaxPeers,
}
// Configure the bare-bone Ethereum service
keystore := crypto.NewKeyStorePassphrase(filepath.Join(datadir, "keystore"), crypto.StandardScryptN, crypto.StandardScryptP)
ethConf := ð.Config{
FastSync: true,
DatabaseCache: 64,
NetworkId: int(network),
AccountManager: accounts.NewManager(keystore),
// Blatantly initialize the gas oracle to the defaults from go-ethereum
GpoMinGasPrice: new(big.Int).Mul(big.NewInt(50), common.Shannon),
GpoMaxGasPrice: new(big.Int).Mul(big.NewInt(500), common.Shannon),
GpoFullBlockRatio: 80,
GpobaseStepDown: 10,
GpobaseStepUp: 100,
GpobaseCorrectionFactor: 110,
}
// Override any default configs in the test network
if network == TestNet {
ethConf.NetworkId = 2
ethConf.Genesis = core.TestNetGenesisBlock()
state.StartingNonce = 1048576 // (2**20)
params.HomesteadBlock = params.TestNetHomesteadBlock
}
// Assemble and return the protocol stack
stack, err := node.New(stackConf)
if err != nil {
return nil, fmt.Errorf("protocol stack: %v", err)
}
if err := stack.Register(func(ctx *node.ServiceContext) (node.Service, error) { return eth.New(ctx, ethConf) }); err != nil {
return nil, fmt.Errorf("ethereum service: %v", err)
}
return &Geth{
stack: stack,
keystore: keystore,
}, nil
}
func testEthConfig() *eth.Config {
ks := crypto.NewKeyStorePassphrase(path.Join(common.DefaultDataDir(), "keys"))
return ð.Config{
DataDir: common.DefaultDataDir(),
LogLevel: 5,
Etherbase: "primary",
AccountManager: accounts.NewManager(ks),
NewDB: func(path string) (common.Database, error) { return ethdb.NewMemDatabase() },
}
}
func (test *BlockTest) makeEthConfig() *eth.Config {
ks := crypto.NewKeyStorePassphrase(filepath.Join(common.DefaultDataDir(), "keystore"))
return ð.Config{
DataDir: common.DefaultDataDir(),
Verbosity: 5,
Etherbase: common.Address{},
AccountManager: accounts.NewManager(ks),
NewDB: func(path string) (common.Database, error) { return ethdb.NewMemDatabase() },
}
}
func runBlockTest(test *BlockTest) error {
ks := crypto.NewKeyStorePassphrase(filepath.Join(common.DefaultDataDir(), "keystore"), crypto.StandardScryptN, crypto.StandardScryptP)
am := accounts.NewManager(ks)
db, _ := ethdb.NewMemDatabase()
cfg := ð.Config{
DataDir: common.DefaultDataDir(),
Verbosity: 5,
Etherbase: common.Address{},
AccountManager: am,
NewDB: func(path string) (ethdb.Database, error) { return db, nil },
}
cfg.GenesisBlock = test.Genesis
// import pre accounts & construct test genesis block & state root
_, err := test.InsertPreState(db, am)
if err != nil {
return fmt.Errorf("InsertPreState: %v", err)
}
ethereum, err := eth.New(cfg)
if err != nil {
return err
}
err = ethereum.Start()
if err != nil {
return err
}
cm := ethereum.BlockChain()
validBlocks, err := test.TryBlocksInsert(cm)
if err != nil {
return err
}
lastblockhash := common.HexToHash(test.lastblockhash)
cmlast := cm.LastBlockHash()
if lastblockhash != cmlast {
return fmt.Errorf("lastblockhash validation mismatch: want: %x, have: %x", lastblockhash, cmlast)
}
newDB, err := cm.State()
if err != nil {
return err
}
if err = test.ValidatePostState(newDB); err != nil {
return fmt.Errorf("post state validation failed: %v", err)
}
return test.ValidateImportedHeaders(cm, validBlocks)
}
// MakeChain creates an account manager from set command line flags.
func MakeAccountManager(ctx *cli.Context) *accounts.Manager {
dataDir := MustDataDir(ctx)
if ctx.GlobalBool(TestNetFlag.Name) {
dataDir += "/testnet"
}
scryptN := crypto.StandardScryptN
scryptP := crypto.StandardScryptP
if ctx.GlobalBool(LightKDFFlag.Name) {
scryptN = crypto.LightScryptN
scryptP = crypto.LightScryptP
}
ks := crypto.NewKeyStorePassphrase(filepath.Join(dataDir, "keystore"), scryptN, scryptP)
return accounts.NewManager(ks)
}
// MakeAccountManager creates an account manager from set command line flags.
func MakeAccountManager(ctx *cli.Context) *accounts.Manager {
// Create the keystore crypto primitive, light if requested
scryptN := crypto.StandardScryptN
scryptP := crypto.StandardScryptP
if ctx.GlobalBool(LightKDFFlag.Name) {
scryptN = crypto.LightScryptN
scryptP = crypto.LightScryptP
}
// Assemble an account manager using the configured datadir
var (
datadir = MustMakeDataDir(ctx)
keystore = crypto.NewKeyStorePassphrase(filepath.Join(datadir, "keystore"), scryptN, scryptP)
)
return accounts.NewManager(keystore)
}
func gethkey(ctx *cli.Context) {
account := ctx.Args().First()
if len(account) == 0 {
utils.Fatalf("account address must be given as first argument")
}
keyfile := ctx.Args().Get(1)
if len(keyfile) == 0 {
utils.Fatalf("keyfile must be given as second argument")
}
keydir := ctx.GlobalString(keyDirFlag.Name)
ks := crypto.NewKeyStorePassphrase(keydir)
am := accounts.NewManager(ks)
auth := unlockAccount(ctx, am, account)
err := am.Export(keyfile, common.FromHex(account), auth)
if err != nil {
utils.Fatalf("Account export failed: %v", err)
}
}
func testEth(t *testing.T) (ethereum *eth.Ethereum, err error) {
os.RemoveAll("/tmp/eth-natspec/")
err = os.MkdirAll("/tmp/eth-natspec/keystore", os.ModePerm)
if err != nil {
panic(err)
}
// create a testAddress
ks := crypto.NewKeyStorePassphrase("/tmp/eth-natspec/keystore")
am := accounts.NewManager(ks)
testAccount, err := am.NewAccount("password")
if err != nil {
panic(err)
}
testAddress := strings.TrimPrefix(testAccount.Address.Hex(), "0x")
db, _ := ethdb.NewMemDatabase()
// set up mock genesis with balance on the testAddress
core.WriteGenesisBlockForTesting(db, core.GenesisAccount{common.HexToAddress(testAddress), common.String2Big(testBalance)})
// only use minimalistic stack with no networking
ethereum, err = eth.New(ð.Config{
DataDir: "/tmp/eth-natspec",
AccountManager: am,
MaxPeers: 0,
PowTest: true,
Etherbase: common.HexToAddress(testAddress),
NewDB: func(path string) (ethdb.Database, error) { return db, nil },
})
if err != nil {
panic(err)
}
return
}
func testEth(t *testing.T) (ethereum *eth.Ethereum, err error) {
tmp, err := ioutil.TempDir("", "natspec-test")
if err != nil {
t.Fatal(err)
}
db, _ := ethdb.NewMemDatabase()
addr := common.HexToAddress(testAddress)
core.WriteGenesisBlockForTesting(db, core.GenesisAccount{addr, common.String2Big(testBalance)})
ks := crypto.NewKeyStorePassphrase(filepath.Join(tmp, "keystore"), crypto.LightScryptN, crypto.LightScryptP)
am := accounts.NewManager(ks)
keyb, err := crypto.HexToECDSA(testKey)
if err != nil {
t.Fatal(err)
}
key := crypto.NewKeyFromECDSA(keyb)
err = ks.StoreKey(key, "")
if err != nil {
t.Fatal(err)
}
err = am.Unlock(key.Address, "")
if err != nil {
t.Fatal(err)
}
// only use minimalistic stack with no networking
return eth.New(ð.Config{
DataDir: tmp,
AccountManager: am,
Etherbase: common.HexToAddress(testAddress),
MaxPeers: 0,
PowTest: true,
NewDB: func(path string) (ethdb.Database, error) { return db, nil },
GpoMinGasPrice: common.Big1,
GpobaseCorrectionFactor: 1,
GpoMaxGasPrice: common.Big1,
})
}
func testEth(t *testing.T) (ethereum *eth.Ethereum, err error) {
os.RemoveAll("/tmp/eth-natspec/")
err = os.MkdirAll("/tmp/eth-natspec/keystore", os.ModePerm)
if err != nil {
panic(err)
}
// create a testAddress
ks := crypto.NewKeyStorePassphrase("/tmp/eth-natspec/keystore")
am := accounts.NewManager(ks)
testAccount, err := am.NewAccount("password")
if err != nil {
panic(err)
}
testAddress := strings.TrimPrefix(testAccount.Address.Hex(), "0x")
// set up mock genesis with balance on the testAddress
core.GenesisAccounts = []byte(`{
"` + testAddress + `": {"balance": "` + testBalance + `"}
}`)
// only use minimalistic stack with no networking
ethereum, err = eth.New(ð.Config{
DataDir: "/tmp/eth-natspec",
AccountManager: am,
MaxPeers: 0,
PowTest: true,
Etherbase: common.HexToAddress(testAddress),
})
if err != nil {
panic(err)
}
return
}
func GetAccountManager(ctx *cli.Context) *accounts.Manager {
dataDir := ctx.GlobalString(DataDirFlag.Name)
ks := crypto.NewKeyStorePassphrase(path.Join(dataDir, "keys"))
return accounts.NewManager(ks)
}