/
transaction.go
108 lines (104 loc) · 3.27 KB
/
transaction.go
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// Copyright 2020 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"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"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"
"math/big"
"os"
"strings"
)
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(ErrorVMConfig, 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
}
i := -1
for it.Next() {
i++
var tx types.Transaction
err := rlp.DecodeBytes(it.Value(), &tx)
if err != nil {
fmt.Printf("error tx %d, %v\n", i, err)
continue
}
sender, err := types.Sender(signer, &tx)
if err != nil {
fmt.Printf("error deriving sender, tx %d, %v\n", i, err)
continue
}
fmt.Printf("sender tx %d: %v\n", i, sender)
}
return nil
}