/
transaction.go
117 lines (102 loc) · 3 KB
/
transaction.go
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/*
* This file is part of The AnnChain.
*
* The AnnChain is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The AnnChain 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with The www.annchain.io. If not, see <http://www.gnu.org/licenses/>.
*/
package ikhofi
import (
"errors"
"math/big"
"time"
"github.com/dappledger/AnnChain/eth/common"
)
type Transaction struct {
From common.Address
To string
Method string
Args []string
ByteCode []byte
Nonce int64
V *big.Int // signature
R, S *big.Int // signature
Hash common.Hash
}
var ErrInvalidSig = errors.New("invalid transaction v, r, s values")
func NewTransaction(from common.Address, to, method string, args []string, bytecode []byte) *Transaction {
return newTransaction(from, to, method, args, bytecode)
}
func newTransaction(from common.Address, to, method string, args []string, bytecode []byte) *Transaction {
now := time.Now()
nonce := now.UTC().UnixNano()
tx := Transaction{
From: from,
To: to,
Method: method,
Args: args,
ByteCode: bytecode,
Nonce: nonce,
}
return &tx
}
func (tx *Transaction) Transaction2Pb() *TransactionPb {
return &TransactionPb{
From: tx.From[:],
To: tx.To,
Method: tx.Method,
Args: tx.Args,
Bytecode: tx.ByteCode,
Nonce: tx.Nonce,
V: tx.V.Bytes(),
R: tx.R.Bytes(),
S: tx.S.Bytes(),
Hash: tx.Hash[:],
}
}
func (tx *Transaction) Transaction2PbTmp() *TransactionPbTmp {
return &TransactionPbTmp{
From: tx.From[:],
To: tx.To,
Method: tx.Method,
Args: tx.Args,
Bytecode: tx.ByteCode,
Nonce: tx.Nonce,
}
}
func Pb2Transaction(txpb *TransactionPb) *Transaction {
V := new(big.Int)
R := new(big.Int)
S := new(big.Int)
return &Transaction{
From: common.BytesToAddress(txpb.From),
To: txpb.To,
Method: txpb.Method,
Args: txpb.Args,
ByteCode: txpb.Bytecode,
Nonce: txpb.Nonce,
V: V.SetBytes(txpb.V),
R: R.SetBytes(txpb.R),
S: S.SetBytes(txpb.S),
Hash: common.BytesToHash(txpb.Hash),
}
}
// SigHash returns the hash to be signed by the sender.
// It does not uniquely identify the transaction.
func (tx *Transaction) SigHash(signer Signer) common.Hash {
return signer.Hash(tx)
}
// WithSignature returns a new transaction with the given signature.
// This signature needs to be formatted as described in the yellow paper (v+27).
func (tx *Transaction) WithSignature(signer Signer, sig []byte) (*Transaction, error) {
return signer.WithSignature(tx, sig)
}