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legacy_tx.go
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/
legacy_tx.go
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package types
import (
"math/big"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/ethereum/go-ethereum/common"
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/evmos/ethermint/types"
)
func newLegacyTx(tx *ethtypes.Transaction) (*LegacyTx, error) {
txData := &LegacyTx{
Nonce: tx.Nonce(),
Data: tx.Data(),
GasLimit: tx.Gas(),
}
v, r, s := tx.RawSignatureValues()
if to := tx.To(); to != nil {
txData.To = to.Hex()
}
if tx.Value() != nil {
amountInt, err := types.SafeNewIntFromBigInt(tx.Value())
if err != nil {
return nil, err
}
txData.Amount = &amountInt
}
if tx.GasPrice() != nil {
gasPriceInt, err := types.SafeNewIntFromBigInt(tx.GasPrice())
if err != nil {
return nil, err
}
txData.GasPrice = &gasPriceInt
}
txData.SetSignatureValues(tx.ChainId(), v, r, s)
return txData, nil
}
// TxType returns the tx type
func (tx *LegacyTx) TxType() uint8 {
return ethtypes.LegacyTxType
}
// Copy returns an instance with the same field values
func (tx *LegacyTx) Copy() TxData {
return &LegacyTx{
Nonce: tx.Nonce,
GasPrice: tx.GasPrice,
GasLimit: tx.GasLimit,
To: tx.To,
Amount: tx.Amount,
Data: common.CopyBytes(tx.Data),
V: common.CopyBytes(tx.V),
R: common.CopyBytes(tx.R),
S: common.CopyBytes(tx.S),
}
}
// GetChainID returns the chain id field from the derived signature values
func (tx *LegacyTx) GetChainID() *big.Int {
v, _, _ := tx.GetRawSignatureValues()
return DeriveChainID(v)
}
// GetAccessList returns nil
func (tx *LegacyTx) GetAccessList() ethtypes.AccessList {
return nil
}
// GetData returns the a copy of the input data bytes.
func (tx *LegacyTx) GetData() []byte {
return common.CopyBytes(tx.Data)
}
// GetGas returns the gas limit.
func (tx *LegacyTx) GetGas() uint64 {
return tx.GasLimit
}
// GetGasPrice returns the gas price field.
func (tx *LegacyTx) GetGasPrice() *big.Int {
if tx.GasPrice == nil {
return nil
}
return tx.GasPrice.BigInt()
}
// GetGasTipCap returns the gas price field.
func (tx *LegacyTx) GetGasTipCap() *big.Int {
return tx.GetGasPrice()
}
// GetGasFeeCap returns the gas price field.
func (tx *LegacyTx) GetGasFeeCap() *big.Int {
return tx.GetGasPrice()
}
// GetValue returns the tx amount.
func (tx *LegacyTx) GetValue() *big.Int {
if tx.Amount == nil {
return nil
}
return tx.Amount.BigInt()
}
// GetNonce returns the account sequence for the transaction.
func (tx *LegacyTx) GetNonce() uint64 { return tx.Nonce }
// GetTo returns the pointer to the recipient address.
func (tx *LegacyTx) GetTo() *common.Address {
if tx.To == "" {
return nil
}
to := common.HexToAddress(tx.To)
return &to
}
// AsEthereumData returns an AccessListTx transaction tx from the proto-formatted
// TxData defined on the Cosmos EVM.
func (tx *LegacyTx) AsEthereumData() ethtypes.TxData {
v, r, s := tx.GetRawSignatureValues()
return ðtypes.LegacyTx{
Nonce: tx.GetNonce(),
GasPrice: tx.GetGasPrice(),
Gas: tx.GetGas(),
To: tx.GetTo(),
Value: tx.GetValue(),
Data: tx.GetData(),
V: v,
R: r,
S: s,
}
}
// GetRawSignatureValues returns the V, R, S signature values of the transaction.
// The return values should not be modified by the caller.
func (tx *LegacyTx) GetRawSignatureValues() (v, r, s *big.Int) {
return rawSignatureValues(tx.V, tx.R, tx.S)
}
// SetSignatureValues sets the signature values to the transaction.
func (tx *LegacyTx) SetSignatureValues(_, v, r, s *big.Int) {
if v != nil {
tx.V = v.Bytes()
}
if r != nil {
tx.R = r.Bytes()
}
if s != nil {
tx.S = s.Bytes()
}
}
// Validate performs a stateless validation of the tx fields.
func (tx LegacyTx) Validate() error {
gasPrice := tx.GetGasPrice()
if gasPrice == nil {
return sdkerrors.Wrap(ErrInvalidGasPrice, "gas price cannot be nil")
}
if gasPrice.Sign() == -1 {
return sdkerrors.Wrapf(ErrInvalidGasPrice, "gas price cannot be negative %s", gasPrice)
}
if !types.IsValidInt256(gasPrice) {
return sdkerrors.Wrap(ErrInvalidGasPrice, "out of bound")
}
if !types.IsValidInt256(tx.Fee()) {
return sdkerrors.Wrap(ErrInvalidGasFee, "out of bound")
}
amount := tx.GetValue()
// Amount can be 0
if amount != nil && amount.Sign() == -1 {
return sdkerrors.Wrapf(ErrInvalidAmount, "amount cannot be negative %s", amount)
}
if !types.IsValidInt256(amount) {
return sdkerrors.Wrap(ErrInvalidAmount, "out of bound")
}
if tx.To != "" {
if err := types.ValidateAddress(tx.To); err != nil {
return sdkerrors.Wrap(err, "invalid to address")
}
}
return nil
}
// Fee returns gasprice * gaslimit.
func (tx LegacyTx) Fee() *big.Int {
return fee(tx.GetGasPrice(), tx.GetGas())
}
// Cost returns amount + gasprice * gaslimit.
func (tx LegacyTx) Cost() *big.Int {
return cost(tx.Fee(), tx.GetValue())
}
// EffectiveFee is the same as Fee for LegacyTx
func (tx LegacyTx) EffectiveFee(baseFee *big.Int) *big.Int {
return tx.Fee()
}
// EffectiveCost is the same as Cost for LegacyTx
func (tx LegacyTx) EffectiveCost(baseFee *big.Int) *big.Int {
return tx.Cost()
}