88 lines
2.8 KiB
Go
88 lines
2.8 KiB
Go
// VulcanizeDB
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// Copyright © 2019 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package cold_db
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import (
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/vulcanize/vulcanizedb/pkg/core"
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"golang.org/x/sync/errgroup"
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"strings"
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)
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type ColdDbTransactionConverter struct{}
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func NewColdDbTransactionConverter() *ColdDbTransactionConverter {
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return &ColdDbTransactionConverter{}
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}
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func (cdtc *ColdDbTransactionConverter) ConvertBlockTransactionsToCore(gethBlock *types.Block) ([]core.TransactionModel, error) {
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var g errgroup.Group
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coreTransactions := make([]core.TransactionModel, len(gethBlock.Transactions()))
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for gethTransactionIndex, gethTransaction := range gethBlock.Transactions() {
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transaction := gethTransaction
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transactionIndex := uint(gethTransactionIndex)
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g.Go(func() error {
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signer := getSigner(transaction)
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sender, err := signer.Sender(transaction)
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if err != nil {
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return err
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}
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coreTransaction := transToCoreTrans(transaction, &sender)
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coreTransactions[transactionIndex] = coreTransaction
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return nil
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})
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}
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if err := g.Wait(); err != nil {
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return coreTransactions, err
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}
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return coreTransactions, nil
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}
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func (cdtc *ColdDbTransactionConverter) ConvertRpcTransactionsToModels(transactions []core.RpcTransaction) ([]core.TransactionModel, error) {
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panic("converting transaction indexes to integer not supported for cold import")
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}
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func getSigner(tx *types.Transaction) types.Signer {
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v, _, _ := tx.RawSignatureValues()
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if v.Sign() != 0 && tx.Protected() {
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return types.NewEIP155Signer(tx.ChainId())
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}
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return types.HomesteadSigner{}
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}
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func transToCoreTrans(transaction *types.Transaction, from *common.Address) core.TransactionModel {
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return core.TransactionModel{
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Hash: transaction.Hash().Hex(),
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Nonce: transaction.Nonce(),
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To: strings.ToLower(addressToHex(transaction.To())),
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From: strings.ToLower(addressToHex(from)),
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GasLimit: transaction.Gas(),
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GasPrice: transaction.GasPrice().Int64(),
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Value: transaction.Value().String(),
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Data: transaction.Data(),
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}
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}
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func addressToHex(to *common.Address) string {
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if to == nil {
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return ""
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}
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return to.Hex()
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}
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