plugeth/cmd/evm/internal/t8ntool/transaction.go

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// Copyright 2021 The go-ethereum Authors
// 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/>.
package t8ntool
import (
"encoding/json"
"errors"
"fmt"
"math/big"
"os"
"strings"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/tests"
"gopkg.in/urfave/cli.v1"
)
type result struct {
Error error
Address common.Address
Hash common.Hash
IntrinsicGas uint64
}
// MarshalJSON marshals as JSON with a hash.
func (r *result) MarshalJSON() ([]byte, error) {
type xx struct {
Error string `json:"error,omitempty"`
Address *common.Address `json:"address,omitempty"`
Hash *common.Hash `json:"hash,omitempty"`
IntrinsicGas hexutil.Uint64 `json:"intrinsicGas,omitempty"`
}
var out xx
if r.Error != nil {
out.Error = r.Error.Error()
}
if r.Address != (common.Address{}) {
out.Address = &r.Address
}
if r.Hash != (common.Hash{}) {
out.Hash = &r.Hash
}
out.IntrinsicGas = hexutil.Uint64(r.IntrinsicGas)
return json.Marshal(out)
}
func Transaction(ctx *cli.Context) error {
// Configure the go-ethereum logger
glogger := log.NewGlogHandler(log.StreamHandler(os.Stderr, log.TerminalFormat(false)))
glogger.Verbosity(log.Lvl(ctx.Int(VerbosityFlag.Name)))
log.Root().SetHandler(glogger)
var (
err error
)
// We need to load the transactions. May be either in stdin input or in files.
// Check if anything needs to be read from stdin
var (
txStr = ctx.String(InputTxsFlag.Name)
inputData = &input{}
chainConfig *params.ChainConfig
)
// Construct the chainconfig
if cConf, _, err := tests.GetChainConfig(ctx.String(ForknameFlag.Name)); err != nil {
return NewError(ErrorConfig, fmt.Errorf("failed constructing chain configuration: %v", err))
} else {
chainConfig = cConf
}
// Set the chain id
chainConfig.ChainID = big.NewInt(ctx.Int64(ChainIDFlag.Name))
var body hexutil.Bytes
if txStr == stdinSelector {
decoder := json.NewDecoder(os.Stdin)
if err := decoder.Decode(inputData); err != nil {
return NewError(ErrorJson, fmt.Errorf("failed unmarshaling stdin: %v", err))
}
// Decode the body of already signed transactions
body = common.FromHex(inputData.TxRlp)
} else {
// Read input from file
inFile, err := os.Open(txStr)
if err != nil {
return NewError(ErrorIO, fmt.Errorf("failed reading txs file: %v", err))
}
defer inFile.Close()
decoder := json.NewDecoder(inFile)
if strings.HasSuffix(txStr, ".rlp") {
if err := decoder.Decode(&body); err != nil {
return err
}
} else {
return NewError(ErrorIO, errors.New("only rlp supported"))
}
}
signer := types.MakeSigner(chainConfig, new(big.Int))
// We now have the transactions in 'body', which is supposed to be an
// rlp list of transactions
it, err := rlp.NewListIterator([]byte(body))
if err != nil {
return err
}
var results []result
for it.Next() {
if err := it.Err(); err != nil {
return NewError(ErrorIO, err)
}
var tx types.Transaction
err := rlp.DecodeBytes(it.Value(), &tx)
if err != nil {
results = append(results, result{Error: err})
continue
}
r := result{Hash: tx.Hash()}
if sender, err := types.Sender(signer, &tx); err != nil {
r.Error = err
results = append(results, r)
continue
} else {
r.Address = sender
}
// Check intrinsic gas
if gas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.To() == nil,
chainConfig.IsHomestead(new(big.Int)), chainConfig.IsIstanbul(new(big.Int))); err != nil {
r.Error = err
results = append(results, r)
continue
} else {
r.IntrinsicGas = gas
if tx.Gas() < gas {
r.Error = fmt.Errorf("%w: have %d, want %d", core.ErrIntrinsicGas, tx.Gas(), gas)
results = append(results, r)
continue
}
}
// Validate <256bit fields
switch {
case tx.Nonce()+1 < tx.Nonce():
r.Error = errors.New("nonce exceeds 2^64-1")
case tx.Value().BitLen() > 256:
r.Error = errors.New("value exceeds 256 bits")
case tx.GasPrice().BitLen() > 256:
r.Error = errors.New("gasPrice exceeds 256 bits")
case tx.GasTipCap().BitLen() > 256:
r.Error = errors.New("maxPriorityFeePerGas exceeds 256 bits")
case tx.GasFeeCap().BitLen() > 256:
r.Error = errors.New("maxFeePerGas exceeds 256 bits")
case tx.GasFeeCap().Cmp(tx.GasTipCap()) < 0:
r.Error = errors.New("maxFeePerGas < maxPriorityFeePerGas")
case new(big.Int).Mul(tx.GasPrice(), new(big.Int).SetUint64(tx.Gas())).BitLen() > 256:
r.Error = errors.New("gas * gasPrice exceeds 256 bits")
case new(big.Int).Mul(tx.GasFeeCap(), new(big.Int).SetUint64(tx.Gas())).BitLen() > 256:
r.Error = errors.New("gas * maxFeePerGas exceeds 256 bits")
}
results = append(results, r)
}
out, err := json.MarshalIndent(results, "", " ")
fmt.Println(string(out))
return err
}