mirror of
https://github.com/ethereum/go-ethereum.git
synced 2026-07-28 15:46:43 +00:00
287 lines
8.3 KiB
Go
287 lines
8.3 KiB
Go
package eth
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import (
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"context"
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"fmt"
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"hash"
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"math"
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"math/big"
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txtrace "github.com/DeBankDeFi/etherlib/pkg/txtracev1"
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txtrace2 "github.com/DeBankDeFi/etherlib/pkg/txtracev2"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/state"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/internal/ethapi"
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"github.com/ethereum/go-ethereum/rpc"
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// "github.com/DeBankDeFi/eth/txtrace"
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"golang.org/x/crypto/sha3"
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)
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type helpHash struct {
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hashed hash.Hash
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}
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func newHash() *helpHash {
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return &helpHash{hashed: sha3.NewLegacyKeccak256()}
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}
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func (h *helpHash) Reset() {
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h.hashed.Reset()
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}
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func (h *helpHash) Update(key, val []byte) {
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h.hashed.Write(key)
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h.hashed.Write(val)
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}
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func (h *helpHash) Hash() common.Hash {
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return common.BytesToHash(h.hashed.Sum(nil))
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}
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type PreExecTx struct {
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ChainId *big.Int
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From, To, Data, Value, Gas, GasPrice, Nonce string
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}
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type preData struct {
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block *types.Block
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tx *types.Transaction
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msg types.Message
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stateDb *state.StateDB
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header *types.Header
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}
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// PreExecAPI provides pre exec info for rpc
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type PreExecAPI struct {
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e *Ethereum
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}
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func NewPreExecAPI(e *Ethereum) *PreExecAPI {
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return &PreExecAPI{e: e}
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}
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func (api *PreExecAPI) getBlockAndMsg(origin *PreExecTx, number *big.Int) (*types.Block, types.Message) {
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fromAddr := common.HexToAddress(origin.From)
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toAddr := common.HexToAddress(origin.To)
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tx := types.NewTx(&types.LegacyTx{
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Nonce: hexutil.MustDecodeUint64(origin.Nonce),
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To: &toAddr,
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Value: hexutil.MustDecodeBig(origin.Value),
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Gas: hexutil.MustDecodeUint64(origin.Gas),
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GasPrice: hexutil.MustDecodeBig(origin.GasPrice),
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Data: hexutil.MustDecode(origin.Data),
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})
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number.Add(number, big.NewInt(1))
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block := types.NewBlock(
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&types.Header{Number: number},
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[]*types.Transaction{tx}, nil, nil, newHash())
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msg := types.NewMessage(
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fromAddr,
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&toAddr,
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hexutil.MustDecodeUint64(origin.Nonce),
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hexutil.MustDecodeBig(origin.Value),
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hexutil.MustDecodeUint64(origin.Gas),
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hexutil.MustDecodeBig(origin.GasPrice),
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tx.GasFeeCap(),
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tx.GasTipCap(),
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hexutil.MustDecode(origin.Data),
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nil, false, true,
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)
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return block, msg
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}
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func (api *PreExecAPI) prepareData(ctx context.Context, origin *PreExecTx) (*preData, error) {
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var (
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d preData
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err error
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)
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bc := api.e.blockchain
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d.header, err = api.e.APIBackend.HeaderByNumber(ctx, rpc.LatestBlockNumber)
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if err != nil {
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return nil, err
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}
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latestNumber := d.header.Number
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parent := api.e.blockchain.GetBlockByNumber(latestNumber.Uint64())
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d.stateDb, err = state.New(parent.Header().Root, bc.StateCache(), bc.Snapshots())
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if err != nil {
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return nil, err
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}
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d.block, d.msg = api.getBlockAndMsg(origin, latestNumber)
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d.tx = d.block.Transactions()[0]
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return &d, nil
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}
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func (api *PreExecAPI) GetLogs(ctx context.Context, origin *PreExecTx) (*types.Receipt, error) {
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var (
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bc = api.e.blockchain
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)
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d, err := api.prepareData(ctx, origin)
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if err != nil {
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return nil, err
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}
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gas := d.tx.Gas()
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gp := new(core.GasPool).AddGas(gas)
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d.stateDb.Prepare(d.tx.Hash(), 0)
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receipt, err := core.ApplyTransactionForPreExec(
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bc.Config(), bc, nil, gp, d.stateDb, d.header, d.tx, d.msg, &gas, *bc.GetVMConfig())
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if err != nil {
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return nil, err
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}
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return receipt, receipt.Err
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}
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// TraceTransaction tracing pre-exec transaction object.
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func (api *PreExecAPI) TraceTransaction(ctx context.Context, origin *PreExecTx) (interface{}, error) {
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var (
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bc = api.e.blockchain
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tracer *txtrace.OeTracer
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err error
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)
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d, err := api.prepareData(ctx, origin)
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if err != nil {
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return nil, err
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}
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txContext := core.NewEVMTxContext(d.msg)
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txIndex := 0
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tracer = txtrace.NewOeTracer(nil)
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// Run the transaction with tracing enabled.
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vmenv := vm.NewEVM(core.NewEVMBlockContext(d.header, bc, nil), txContext, d.stateDb, bc.Config(), vm.Config{Debug: true, Tracer: tracer})
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vmenv.Context.BaseFee = big.NewInt(0)
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// Call Prepare to clear out the statedb access list
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d.stateDb.Prepare(d.tx.Hash(), txIndex)
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tracer.SetMessage(d.block.Number(), d.block.Hash(), d.tx.Hash(), uint(txIndex), d.msg.From(), d.msg.To(), *d.msg.Value())
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_, err = core.ApplyMessage(vmenv, d.msg, new(core.GasPool).AddGas(d.msg.Gas()))
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if err != nil {
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return nil, fmt.Errorf("tracing failed: %v", err)
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}
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tracer.Finalize()
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return tracer.GetResult(), nil
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}
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type PreArgs struct {
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ChainId *big.Int `json:"chainId,omitempty"`
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From *common.Address `json:"from"`
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To *common.Address `json:"to"`
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Gas *hexutil.Uint64 `json:"gas"`
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GasPrice *hexutil.Big `json:"gasPrice"`
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MaxFeePerGas *hexutil.Big `json:"maxFeePerGas"`
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MaxPriorityFeePerGas *hexutil.Big `json:"maxPriorityFeePerGas"`
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Value *hexutil.Big `json:"value"`
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Nonce *hexutil.Uint64 `json:"nonce"`
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Data *hexutil.Bytes `json:"data"`
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Input *hexutil.Bytes `json:"input"`
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}
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type PreResult struct {
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Trace txtrace2.ActionTraceList `json:"trace"`
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Logs []*types.Log `json:"logs"`
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StateDiff txtrace2.StateDiff `json:"stateDiff"`
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Error string `json:"error,omitempty"`
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GasUsed uint64 `json:"gasUsed"`
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}
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func (api *PreExecAPI) TraceMany(ctx context.Context, origins []PreArgs) ([]PreResult, error) {
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preResList := make([]PreResult, 0)
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state, header, err := api.e.APIBackend.StateAndHeaderByNumberOrHash(ctx, rpc.BlockNumberOrHashWithNumber(rpc.LatestBlockNumber))
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if state == nil || err != nil {
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return nil, err
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}
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for i := 0; i < len(origins); i++ {
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origin := origins[i]
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if origin.Nonce == nil {
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preResList = append(preResList, PreResult{
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Error: fmt.Sprintf("invalid nonce, tx index %d, nonce is nil", i),
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})
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continue
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}
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nonce := state.GetNonce(*origin.From)
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if (uint64)(*origin.Nonce) != nonce {
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preResList = append(preResList, PreResult{
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Error: fmt.Sprintf("invalid nonce, tx index %d, want %d, got %d", i, nonce, *origin.Nonce),
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})
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continue
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}
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txArgs := ethapi.TransactionArgs{
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ChainID: (*hexutil.Big)(big.NewInt(1)),
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From: origin.From,
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To: origin.To,
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Gas: origin.Gas,
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GasPrice: origin.GasPrice,
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MaxFeePerGas: origin.MaxFeePerGas,
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MaxPriorityFeePerGas: origin.MaxPriorityFeePerGas,
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Value: origin.Value,
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Nonce: origin.Nonce,
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Data: origin.Data,
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Input: origin.Input,
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}
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// Get a new instance of the EVM.
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msg, err := txArgs.ToMessage(0, header.BaseFee)
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if err != nil {
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preResList = append(preResList, PreResult{
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Error: fmt.Sprintf("toMessage failed, tx index %d, err %v", i, err),
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})
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continue
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}
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txHash := common.BigToHash(big.NewInt(int64(i)))
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tracer := txtrace2.NewOeTracer(nil, header.Hash(), header.Number, txHash, uint64(i))
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evm, vmError, err := api.e.APIBackend.GetEVM(ctx, msg, state, header, &vm.Config{NoBaseFee: true, Debug: true, Tracer: tracer})
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if err != nil {
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preResList = append(preResList, PreResult{
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Error: fmt.Sprintf("getEvm failed, tx index %d, err %v", i, err),
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})
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continue
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}
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// Execute the message.
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gp := new(core.GasPool).AddGas(math.MaxUint64)
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state.Prepare(txHash, i)
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result, err := core.ApplyMessage(evm, msg, gp)
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if err := vmError(); err != nil {
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preRes := PreResult{
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Error: fmt.Sprintf("evm apply failed, tx index %d, err %v", i, err),
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}
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if result != nil {
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preRes.GasUsed = result.UsedGas
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}
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preResList = append(preResList, preRes)
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continue
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}
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if err != nil {
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preRes := PreResult{
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Error: fmt.Sprintf("evm apply failed, tx index %d, err %v", i, err),
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}
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if result != nil {
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preRes.GasUsed = result.UsedGas
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}
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preResList = append(preResList, preRes)
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continue
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}
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preRes := PreResult{
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Trace: tracer.GetTraces(),
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Logs: state.GetLogs(txHash, header.Hash()),
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StateDiff: tracer.GetStateDiff(),
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}
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if result != nil {
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preRes.GasUsed = result.UsedGas
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}
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if len(preRes.Trace) > 0 && (preRes.Trace)[0].Error != "" {
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preRes.Error = (preRes.Trace)[0].Error
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}
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preResList = append(preResList, preRes)
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}
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return preResList, nil
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}
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