otterscan/cmd/otter/commands/otterscan_search_trace.go

104 lines
3.5 KiB
Go

package commands
import (
"context"
"sync"
"github.com/ledgerwatch/erigon-lib/kv"
"github.com/ledgerwatch/erigon/cmd/rpcdaemon/commands"
"github.com/ledgerwatch/erigon/common"
"github.com/ledgerwatch/erigon/consensus/ethash"
"github.com/ledgerwatch/erigon/core"
"github.com/ledgerwatch/erigon/core/rawdb"
"github.com/ledgerwatch/erigon/core/state"
"github.com/ledgerwatch/erigon/core/types"
"github.com/ledgerwatch/erigon/core/vm"
"github.com/ledgerwatch/erigon/params"
"github.com/ledgerwatch/erigon/turbo/shards"
"github.com/ledgerwatch/log/v3"
)
func (api *OtterscanAPIImpl) searchTraceBlock(ctx context.Context, wg *sync.WaitGroup, addr common.Address, chainConfig *params.ChainConfig, idx int, bNum uint64, results []*TransactionsWithReceipts) {
wg.Done()
// Trace block for Txs
newdbtx, err := api.db.BeginRo(ctx)
if err != nil {
log.Error("Search trace error", "err", err)
results[idx] = nil
return
}
defer newdbtx.Rollback()
_, result, err := api.traceBlock(newdbtx, ctx, bNum, addr, chainConfig)
if err != nil {
log.Error("Search trace error", "err", err)
results[idx] = nil
return
}
results[idx] = result
}
func (api *OtterscanAPIImpl) traceBlock(dbtx kv.Tx, ctx context.Context, blockNum uint64, searchAddr common.Address, chainConfig *params.ChainConfig) (bool, *TransactionsWithReceipts, error) {
rpcTxs := make([]*commands.RPCTransaction, 0)
receipts := make([]map[string]interface{}, 0)
// Retrieve the transaction and assemble its EVM context
blockHash, err := rawdb.ReadCanonicalHash(dbtx, blockNum)
if err != nil {
return false, nil, err
}
block, senders, err := api._blockReader.BlockWithSenders(ctx, dbtx, blockHash, blockNum)
if err != nil {
return false, nil, err
}
reader := state.NewPlainState(dbtx, blockNum)
stateCache := shards.NewStateCache(32, 0 /* no limit */)
cachedReader := state.NewCachedReader(reader, stateCache)
noop := state.NewNoopWriter()
cachedWriter := state.NewCachedWriter(noop, stateCache)
ibs := state.New(cachedReader)
signer := types.MakeSigner(chainConfig, blockNum)
getHeader := func(hash common.Hash, number uint64) *types.Header {
h, e := api._blockReader.Header(ctx, dbtx, hash, number)
if e != nil {
log.Error("getHeader error", "number", number, "hash", hash, "err", e)
}
return h
}
engine := ethash.NewFaker()
blockReceipts := rawdb.ReadReceipts(dbtx, block, senders)
header := block.Header()
rules := chainConfig.Rules(block.NumberU64())
found := false
for idx, tx := range block.Transactions() {
ibs.Prepare(tx.Hash(), block.Hash(), idx)
msg, _ := tx.AsMessage(*signer, header.BaseFee, rules)
tracer := NewTouchTracer(searchAddr)
BlockContext := core.NewEVMBlockContext(header, core.GetHashFn(header, getHeader), engine, nil)
TxContext := core.NewEVMTxContext(msg)
vmenv := vm.NewEVM(BlockContext, TxContext, ibs, chainConfig, vm.Config{Debug: true, Tracer: tracer})
if _, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(tx.GetGas()), true /* refunds */, false /* gasBailout */); err != nil {
return false, nil, err
}
_ = ibs.FinalizeTx(vmenv.ChainConfig().Rules(block.NumberU64()), cachedWriter)
if tracer.Found {
rpcTx := newRPCTransaction(tx, block.Hash(), blockNum, uint64(idx), block.BaseFee())
mReceipt := marshalReceipt(blockReceipts[idx], tx, chainConfig, block, tx.Hash(), true)
mReceipt["timestamp"] = block.Time()
rpcTxs = append(rpcTxs, rpcTx)
receipts = append(receipts, mReceipt)
found = true
}
}
return found, &TransactionsWithReceipts{rpcTxs, receipts, false, false}, nil
}