tx-spammer/pkg/shared/util.go
2020-10-23 10:59:49 -05:00

63 lines
2.2 KiB
Go

// VulcanizeDB
// Copyright © 2020 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program 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 Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package shared
import (
"context"
"fmt"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"math/big"
"os"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/rpc"
"github.com/ethereum/temp/common/hexutil"
)
// ChainConfig returns the appropriate ethereum chain config for the provided chain id
func TxSigner(kind TxType, chainID uint64) (types.Signer, error) {
switch kind {
case Standard, EIP1559:
return types.NewEIP155Signer(new(big.Int).SetUint64(chainID)), nil
case OptimismL2, OptimismL1ToL2:
return types.NewOVMSigner(new(big.Int).SetUint64(chainID)), nil
default:
return nil, fmt.Errorf("chain config for chainid %d not available", chainID)
}
}
// SendRawTransaction sends a raw, signed tx using the provided client
func SendRawTransaction(rpcClient *rpc.Client, txRlp []byte) error {
return rpcClient.CallContext(context.Background(), nil, "eth_sendRawTransaction", hexutil.Encode(txRlp))
}
// WriteContractAddr appends a contract addr to an out file
func WriteContractAddr(filePath string, senderAddr common.Address, nonce uint64) error {
if filePath == "" {
filePath = DefaultDeploymentAddrLogPathPrefix + senderAddr.Hex()
}
contractAddr := crypto.CreateAddress(senderAddr, nonce)
f, err := os.OpenFile(filePath, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
if err != nil {
return err
}
if _, err := f.WriteString(contractAddr.Hex() + "\n"); err != nil {
return err
}
return f.Close()
}