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accounts/abi/bind: allow specifying signer on transactOpts (#21356)

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This commit enables users to specify which signer they want to use while creating their transactOpts.
Previously all contract interactions used the homestead signer. Now a user can specify whether they
want to sign with homestead or EIP155 and specify the chainID which adds another layer of security.

Closes #16484
pull/21980/head
Marius van der Wijden 4 years ago committed by GitHub
parent 6a4e730003
commit ed0670cb17
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 127 additions and 40 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 92
      accounts/abi/bind/auth.go
  2. 2
      accounts/abi/bind/backends/simulated.go
  3. 12
      accounts/abi/bind/backends/simulated_test.go
  4. 4
      accounts/abi/bind/base.go
  5. 34
      accounts/abi/bind/bind_test.go
  6. 2
      contracts/checkpointoracle/oracle_test.go
  7. 6
      les/sync_test.go
  8. 3
      les/test_helper.go
  9. 12
      mobile/bind.go

92
accounts/abi/bind/auth.go
Unescape View File

@ -21,6 +21,7 @@ import (
"errors"
"io"
"io/ioutil"
"math/big"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/accounts/external"
@ -28,11 +29,21 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/log"
)
// ErrNoChainID is returned whenever the user failed to specify a chain id.
var ErrNoChainID = errors.New("no chain id specified")
// ErrNotAuthorized is returned when an account is not properly unlocked.
var ErrNotAuthorized = errors.New("not authorized to sign this account")
// NewTransactor is a utility method to easily create a transaction signer from
// an encrypted json key stream and the associated passphrase.
//
// Deprecated: Use NewTransactorWithChainID instead.
func NewTransactor(keyin io.Reader, passphrase string) (*TransactOpts, error) {
log.Warn("WARNING: NewTransactor has been deprecated in favour of NewTransactorWithChainID")
json, err := ioutil.ReadAll(keyin)
if err != nil {
return nil, err
@ -45,13 +56,17 @@ func NewTransactor(keyin io.Reader, passphrase string) (*TransactOpts, error) {
}
// NewKeyStoreTransactor is a utility method to easily create a transaction signer from
// a decrypted key from a keystore.
// an decrypted key from a keystore.
//
// Deprecated: Use NewKeyStoreTransactorWithChainID instead.
func NewKeyStoreTransactor(keystore *keystore.KeyStore, account accounts.Account) (*TransactOpts, error) {
log.Warn("WARNING: NewKeyStoreTransactor has been deprecated in favour of NewTransactorWithChainID")
signer := types.HomesteadSigner{}
return &TransactOpts{
From: account.Address,
Signer: func(signer types.Signer, address common.Address, tx *types.Transaction) (*types.Transaction, error) {
Signer: func(address common.Address, tx *types.Transaction) (*types.Transaction, error) {
if address != account.Address {
return nil, errors.New("not authorized to sign this account")
return nil, ErrNotAuthorized
}
signature, err := keystore.SignHash(account, signer.Hash(tx).Bytes())
if err != nil {
@ -64,13 +79,17 @@ func NewKeyStoreTransactor(keystore *keystore.KeyStore, account accounts.Account
// NewKeyedTransactor is a utility method to easily create a transaction signer
// from a single private key.
//
// Deprecated: Use NewKeyedTransactorWithChainID instead.
func NewKeyedTransactor(key *ecdsa.PrivateKey) *TransactOpts {
log.Warn("WARNING: NewKeyedTransactor has been deprecated in favour of NewKeyedTransactorWithChainID")
keyAddr := crypto.PubkeyToAddress(key.PublicKey)
signer := types.HomesteadSigner{}
return &TransactOpts{
From: keyAddr,
Signer: func(signer types.Signer, address common.Address, tx *types.Transaction) (*types.Transaction, error) {
Signer: func(address common.Address, tx *types.Transaction) (*types.Transaction, error) {
if address != keyAddr {
return nil, errors.New("not authorized to sign this account")
return nil, ErrNotAuthorized
}
signature, err := crypto.Sign(signer.Hash(tx).Bytes(), key)
if err != nil {
@ -81,14 +100,73 @@ func NewKeyedTransactor(key *ecdsa.PrivateKey) *TransactOpts {
}
}
// NewTransactorWithChainID is a utility method to easily create a transaction signer from
// an encrypted json key stream and the associated passphrase.
func NewTransactorWithChainID(keyin io.Reader, passphrase string, chainID *big.Int) (*TransactOpts, error) {
json, err := ioutil.ReadAll(keyin)
if err != nil {
return nil, err
}
key, err := keystore.DecryptKey(json, passphrase)
if err != nil {
return nil, err
}
return NewKeyedTransactorWithChainID(key.PrivateKey, chainID)
}
// NewKeyStoreTransactorWithChainID is a utility method to easily create a transaction signer from
// an decrypted key from a keystore.
func NewKeyStoreTransactorWithChainID(keystore *keystore.KeyStore, account accounts.Account, chainID *big.Int) (*TransactOpts, error) {
if chainID == nil {
return nil, ErrNoChainID
}
signer := types.NewEIP155Signer(chainID)
return &TransactOpts{
From: account.Address,
Signer: func(address common.Address, tx *types.Transaction) (*types.Transaction, error) {
if address != account.Address {
return nil, ErrNotAuthorized
}
signature, err := keystore.SignHash(account, signer.Hash(tx).Bytes())
if err != nil {
return nil, err
}
return tx.WithSignature(signer, signature)
},
}, nil
}
// NewKeyedTransactorWithChainID is a utility method to easily create a transaction signer
// from a single private key.
func NewKeyedTransactorWithChainID(key *ecdsa.PrivateKey, chainID *big.Int) (*TransactOpts, error) {
keyAddr := crypto.PubkeyToAddress(key.PublicKey)
if chainID == nil {
return nil, ErrNoChainID
}
signer := types.NewEIP155Signer(chainID)
return &TransactOpts{
From: keyAddr,
Signer: func(address common.Address, tx *types.Transaction) (*types.Transaction, error) {
if address != keyAddr {
return nil, ErrNotAuthorized
}
signature, err := crypto.Sign(signer.Hash(tx).Bytes(), key)
if err != nil {
return nil, err
}
return tx.WithSignature(signer, signature)
},
}, nil
}
// NewClefTransactor is a utility method to easily create a transaction signer
// with a clef backend.
func NewClefTransactor(clef *external.ExternalSigner, account accounts.Account) *TransactOpts {
return &TransactOpts{
From: account.Address,
Signer: func(signer types.Signer, address common.Address, transaction *types.Transaction) (*types.Transaction, error) {
Signer: func(address common.Address, transaction *types.Transaction) (*types.Transaction, error) {
if address != account.Address {
return nil, errors.New("not authorized to sign this account")
return nil, ErrNotAuthorized
}
return clef.SignTx(account, transaction, nil) // Clef enforces its own chain id
},

2
accounts/abi/bind/backends/simulated.go
Unescape View File

@ -74,6 +74,7 @@ type SimulatedBackend struct {
// NewSimulatedBackendWithDatabase creates a new binding backend based on the given database
// and uses a simulated blockchain for testing purposes.
// A simulated backend always uses chainID 1337.
func NewSimulatedBackendWithDatabase(database ethdb.Database, alloc core.GenesisAlloc, gasLimit uint64) *SimulatedBackend {
genesis := core.Genesis{Config: params.AllEthashProtocolChanges, GasLimit: gasLimit, Alloc: alloc}
genesis.MustCommit(database)
@ -91,6 +92,7 @@ func NewSimulatedBackendWithDatabase(database ethdb.Database, alloc core.Genesis
// NewSimulatedBackend creates a new binding backend using a simulated blockchain
// for testing purposes.
// A simulated backend always uses chainID 1337.
func NewSimulatedBackend(alloc core.GenesisAlloc, gasLimit uint64) *SimulatedBackend {
return NewSimulatedBackendWithDatabase(rawdb.NewMemoryDatabase(), alloc, gasLimit)
}

12
accounts/abi/bind/backends/simulated_test.go
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@ -39,7 +39,7 @@ import (
func TestSimulatedBackend(t *testing.T) {
var gasLimit uint64 = 8000029
key, _ := crypto.GenerateKey() // nolint: gosec
auth := bind.NewKeyedTransactor(key)
auth, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
genAlloc := make(core.GenesisAlloc)
genAlloc[auth.From] = core.GenesisAccount{Balance: big.NewInt(9223372036854775807)}
@ -411,7 +411,7 @@ func TestSimulatedBackend_EstimateGas(t *testing.T) {
key, _ := crypto.GenerateKey()
addr := crypto.PubkeyToAddress(key.PublicKey)
opts := bind.NewKeyedTransactor(key)
opts, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
sim := NewSimulatedBackend(core.GenesisAlloc{addr: {Balance: big.NewInt(params.Ether)}}, 10000000)
defer sim.Close()
@ -888,7 +888,7 @@ func TestSimulatedBackend_PendingCodeAt(t *testing.T) {
if err != nil {
t.Errorf("could not get code at test addr: %v", err)
}
auth := bind.NewKeyedTransactor(testKey)
auth, _ := bind.NewKeyedTransactorWithChainID(testKey, big.NewInt(1337))
contractAddr, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(abiBin), sim)
if err != nil {
t.Errorf("could not deploy contract: %v tx: %v contract: %v", err, tx, contract)
@ -924,7 +924,7 @@ func TestSimulatedBackend_CodeAt(t *testing.T) {
if err != nil {
t.Errorf("could not get code at test addr: %v", err)
}
auth := bind.NewKeyedTransactor(testKey)
auth, _ := bind.NewKeyedTransactorWithChainID(testKey, big.NewInt(1337))
contractAddr, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(abiBin), sim)
if err != nil {
t.Errorf("could not deploy contract: %v tx: %v contract: %v", err, tx, contract)
@ -956,7 +956,7 @@ func TestSimulatedBackend_PendingAndCallContract(t *testing.T) {
if err != nil {
t.Errorf("could not get code at test addr: %v", err)
}
contractAuth := bind.NewKeyedTransactor(testKey)
contractAuth, _ := bind.NewKeyedTransactorWithChainID(testKey, big.NewInt(1337))
addr, _, _, err := bind.DeployContract(contractAuth, parsed, common.FromHex(abiBin), sim)
if err != nil {
t.Errorf("could not deploy contract: %v", err)
@ -1043,7 +1043,7 @@ func TestSimulatedBackend_CallContractRevert(t *testing.T) {
if err != nil {
t.Errorf("could not get code at test addr: %v", err)
}
contractAuth := bind.NewKeyedTransactor(testKey)
contractAuth, _ := bind.NewKeyedTransactorWithChainID(testKey, big.NewInt(1337))
addr, _, _, err := bind.DeployContract(contractAuth, parsed, common.FromHex(reverterBin), sim)
if err != nil {
t.Errorf("could not deploy contract: %v", err)

4
accounts/abi/bind/base.go
Unescape View File

@ -32,7 +32,7 @@ import (
// SignerFn is a signer function callback when a contract requires a method to
// sign the transaction before submission.
type SignerFn func(types.Signer, common.Address, *types.Transaction) (*types.Transaction, error)
type SignerFn func(common.Address, *types.Transaction) (*types.Transaction, error)
// CallOpts is the collection of options to fine tune a contract call request.
type CallOpts struct {
@ -256,7 +256,7 @@ func (c *BoundContract) transact(opts *TransactOpts, contract *common.Address, i
if opts.Signer == nil {
return nil, errors.New("no signer to authorize the transaction with")
}
signedTx, err := opts.Signer(types.HomesteadSigner{}, opts.From, rawTx)
signedTx, err := opts.Signer(opts.From, rawTx)
if err != nil {
return nil, err
}

34
accounts/abi/bind/bind_test.go
Unescape View File

@ -296,7 +296,7 @@ var bindTests = []struct {
`
// Generate a new random account and a funded simulator
key, _ := crypto.GenerateKey()
auth := bind.NewKeyedTransactor(key)
auth, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
defer sim.Close()
@ -351,7 +351,7 @@ var bindTests = []struct {
`
// Generate a new random account and a funded simulator
key, _ := crypto.GenerateKey()
auth := bind.NewKeyedTransactor(key)
auth, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
defer sim.Close()
@ -397,7 +397,7 @@ var bindTests = []struct {
`
// Generate a new random account and a funded simulator
key, _ := crypto.GenerateKey()
auth := bind.NewKeyedTransactor(key)
auth, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
defer sim.Close()
@ -455,7 +455,7 @@ var bindTests = []struct {
`
// Generate a new random account and a funded simulator
key, _ := crypto.GenerateKey()
auth := bind.NewKeyedTransactor(key)
auth, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
defer sim.Close()
@ -503,7 +503,7 @@ var bindTests = []struct {
`
// Generate a new random account and a funded simulator
key, _ := crypto.GenerateKey()
auth := bind.NewKeyedTransactor(key)
auth, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
defer sim.Close()
@ -598,7 +598,7 @@ var bindTests = []struct {
`
// Generate a new random account and a funded simulator
key, _ := crypto.GenerateKey()
auth := bind.NewKeyedTransactor(key)
auth, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
defer sim.Close()
@ -648,7 +648,7 @@ var bindTests = []struct {
`
// Generate a new random account and a funded simulator
key, _ := crypto.GenerateKey()
auth := bind.NewKeyedTransactor(key)
auth, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
defer sim.Close()
@ -723,7 +723,7 @@ var bindTests = []struct {
`
// Generate a new random account and a funded simulator
key, _ := crypto.GenerateKey()
auth := bind.NewKeyedTransactor(key)
auth, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
defer sim.Close()
@ -817,7 +817,7 @@ var bindTests = []struct {
`
// Generate a new random account and a funded simulator
key, _ := crypto.GenerateKey()
auth := bind.NewKeyedTransactor(key)
auth, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
defer sim.Close()
@ -1007,7 +1007,7 @@ var bindTests = []struct {
`
// Generate a new random account and a funded simulator
key, _ := crypto.GenerateKey()
auth := bind.NewKeyedTransactor(key)
auth, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
defer sim.Close()
@ -1142,7 +1142,7 @@ var bindTests = []struct {
`
key, _ := crypto.GenerateKey()
auth := bind.NewKeyedTransactor(key)
auth, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
defer sim.Close()
@ -1284,7 +1284,7 @@ var bindTests = []struct {
`
// Generate a new random account and a funded simulator
key, _ := crypto.GenerateKey()
auth := bind.NewKeyedTransactor(key)
auth, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
defer sim.Close()
@ -1350,7 +1350,7 @@ var bindTests = []struct {
`
// Initialize test accounts
key, _ := crypto.GenerateKey()
auth := bind.NewKeyedTransactor(key)
auth, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
defer sim.Close()
@ -1444,7 +1444,7 @@ var bindTests = []struct {
sim := backends.NewSimulatedBackend(core.GenesisAlloc{addr: {Balance: big.NewInt(1000000000)}}, 10000000)
defer sim.Close()
transactOpts := bind.NewKeyedTransactor(key)
transactOpts, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
_, _, _, err := DeployIdentifierCollision(transactOpts, sim)
if err != nil {
t.Fatalf("failed to deploy contract: %v", err)
@ -1506,7 +1506,7 @@ var bindTests = []struct {
sim := backends.NewSimulatedBackend(core.GenesisAlloc{addr: {Balance: big.NewInt(1000000000)}}, 10000000)
defer sim.Close()
transactOpts := bind.NewKeyedTransactor(key)
transactOpts, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
_, _, c1, err := DeployContractOne(transactOpts, sim)
if err != nil {
t.Fatal("Failed to deploy contract")
@ -1563,7 +1563,7 @@ var bindTests = []struct {
`
// Generate a new random account and a funded simulator
key, _ := crypto.GenerateKey()
auth := bind.NewKeyedTransactor(key)
auth, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
sim := backends.NewSimulatedBackend(core.GenesisAlloc{auth.From: {Balance: big.NewInt(10000000000)}}, 10000000)
defer sim.Close()
@ -1632,7 +1632,7 @@ var bindTests = []struct {
sim := backends.NewSimulatedBackend(core.GenesisAlloc{addr: {Balance: big.NewInt(1000000000)}}, 1000000)
defer sim.Close()
opts := bind.NewKeyedTransactor(key)
opts, _ := bind.NewKeyedTransactorWithChainID(key, big.NewInt(1337))
_, _, c, err := DeployNewFallbacks(opts, sim)
if err != nil {
t.Fatalf("Failed to deploy contract: %v", err)

2
contracts/checkpointoracle/oracle_test.go
Unescape View File

@ -178,7 +178,7 @@ func TestCheckpointRegister(t *testing.T) {
contractBackend := backends.NewSimulatedBackend(core.GenesisAlloc{accounts[0].addr: {Balance: big.NewInt(1000000000)}, accounts[1].addr: {Balance: big.NewInt(1000000000)}, accounts[2].addr: {Balance: big.NewInt(1000000000)}}, 10000000)
defer contractBackend.Close()
transactOpts := bind.NewKeyedTransactor(accounts[0].key)
transactOpts, _ := bind.NewKeyedTransactorWithChainID(accounts[0].key, big.NewInt(1337))
// 3 trusted signers, threshold 2
contractAddr, _, c, err := contract.DeployCheckpointOracle(transactOpts, contractBackend, []common.Address{accounts[0].addr, accounts[1].addr, accounts[2].addr}, sectionSize, processConfirms, big.NewInt(2))

6
les/sync_test.go
Unescape View File

@ -80,7 +80,8 @@ func testCheckpointSyncing(t *testing.T, protocol int, syncMode int) {
data := append([]byte{0x19, 0x00}, append(registrarAddr.Bytes(), append([]byte{0, 0, 0, 0, 0, 0, 0, 0}, cp.Hash().Bytes()...)...)...)
sig, _ := crypto.Sign(crypto.Keccak256(data), signerKey)
sig[64] += 27 // Transform V from 0/1 to 27/28 according to the yellow paper
if _, err := server.handler.server.oracle.Contract().RegisterCheckpoint(bind.NewKeyedTransactor(signerKey), cp.SectionIndex, cp.Hash().Bytes(), new(big.Int).Sub(header.Number, big.NewInt(1)), header.ParentHash, [][]byte{sig}); err != nil {
auth, _ := bind.NewKeyedTransactorWithChainID(signerKey, big.NewInt(1337))
if _, err := server.handler.server.oracle.Contract().RegisterCheckpoint(auth, cp.SectionIndex, cp.Hash().Bytes(), new(big.Int).Sub(header.Number, big.NewInt(1)), header.ParentHash, [][]byte{sig}); err != nil {
t.Error("register checkpoint failed", err)
}
server.backend.Commit()
@ -162,7 +163,8 @@ func testMissOracleBackend(t *testing.T, hasCheckpoint bool) {
data := append([]byte{0x19, 0x00}, append(registrarAddr.Bytes(), append([]byte{0, 0, 0, 0, 0, 0, 0, 0}, cp.Hash().Bytes()...)...)...)
sig, _ := crypto.Sign(crypto.Keccak256(data), signerKey)
sig[64] += 27 // Transform V from 0/1 to 27/28 according to the yellow paper
if _, err := server.handler.server.oracle.Contract().RegisterCheckpoint(bind.NewKeyedTransactor(signerKey), cp.SectionIndex, cp.Hash().Bytes(), new(big.Int).Sub(header.Number, big.NewInt(1)), header.ParentHash, [][]byte{sig}); err != nil {
auth, _ := bind.NewKeyedTransactorWithChainID(signerKey, big.NewInt(1337))
if _, err := server.handler.server.oracle.Contract().RegisterCheckpoint(auth, cp.SectionIndex, cp.Hash().Bytes(), new(big.Int).Sub(header.Number, big.NewInt(1)), header.ParentHash, [][]byte{sig}); err != nil {
t.Error("register checkpoint failed", err)
}
server.backend.Commit()

3
les/test_helper.go
Unescape View File

@ -112,7 +112,8 @@ func prepare(n int, backend *backends.SimulatedBackend) {
switch i {
case 0:
// deploy checkpoint contract
registrarAddr, _, _, _ = contract.DeployCheckpointOracle(bind.NewKeyedTransactor(bankKey), backend, []common.Address{signerAddr}, sectionSize, processConfirms, big.NewInt(1))
auth, _ := bind.NewKeyedTransactorWithChainID(bankKey, big.NewInt(1337))
registrarAddr, _, _, _ = contract.DeployCheckpointOracle(auth, backend, []common.Address{signerAddr}, sectionSize, processConfirms, big.NewInt(1))
// bankUser transfers some ether to user1
nonce, _ := backend.PendingNonceAt(ctx, bankAddr)
tx, _ := types.SignTx(types.NewTransaction(nonce, userAddr1, big.NewInt(10000), params.TxGas, nil, nil), signer, bankKey)

12
mobile/bind.go
Unescape View File

@ -40,7 +40,7 @@ type MobileSigner struct {
}
func (s *MobileSigner) Sign(addr *Address, unsignedTx *Transaction) (signedTx *Transaction, _ error) {
sig, err := s.sign(types.EIP155Signer{}, addr.address, unsignedTx.tx)
sig, err := s.sign(addr.address, unsignedTx.tx)
if err != nil {
return nil, err
}
@ -82,12 +82,16 @@ func NewTransactOpts() *TransactOpts {
// NewKeyedTransactOpts is a utility method to easily create a transaction signer
// from a single private key.
func NewKeyedTransactOpts(keyJson []byte, passphrase string) (*TransactOpts, error) {
func NewKeyedTransactOpts(keyJson []byte, passphrase string, chainID *big.Int) (*TransactOpts, error) {
key, err := keystore.DecryptKey(keyJson, passphrase)
if err != nil {
return nil, err
}
return &TransactOpts{*bind.NewKeyedTransactor(key.PrivateKey)}, nil
auth, err := bind.NewKeyedTransactorWithChainID(key.PrivateKey, chainID)
if err != nil {
return nil, err
}
return &TransactOpts{*auth}, nil
}
func (opts *TransactOpts) GetFrom() *Address { return &Address{opts.opts.From} }
@ -106,7 +110,7 @@ func (opts *TransactOpts) GetGasLimit() int64 { return int64(opts.opts.GasLimi
func (opts *TransactOpts) SetFrom(from *Address) { opts.opts.From = from.address }
func (opts *TransactOpts) SetNonce(nonce int64) { opts.opts.Nonce = big.NewInt(nonce) }
func (opts *TransactOpts) SetSigner(s Signer) {
opts.opts.Signer = func(signer types.Signer, addr common.Address, tx *types.Transaction) (*types.Transaction, error) {
opts.opts.Signer = func(addr common.Address, tx *types.Transaction) (*types.Transaction, error) {
sig, err := s.Sign(&Address{addr}, &Transaction{tx})
if err != nil {
return nil, err

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