func (self *XEth) Transact(fromStr, toStr, nonceStr, valueStr, gasStr, gasPriceStr, codeStr string) (string, error) {
// this minimalistic recoding is enough (works for natspec.js)
var jsontx = fmt.Sprintf(`{"params":[{"to":"%s","data": "%s"}]}`, toStr, codeStr)
if !self.ConfirmTransaction(jsontx) {
err := fmt.Errorf("Transaction not confirmed")
return "", err
}
if len(toStr) > 0 && toStr != "0x" && !isAddress(toStr) {
return "", errors.New("Invalid address")
}
var (
from = common.HexToAddress(fromStr)
to = common.HexToAddress(toStr)
value = common.Big(valueStr)
gas *big.Int
price *big.Int
data []byte
contractCreation bool
)
if len(gasStr) == 0 {
gas = DefaultGas()
} else {
gas = common.Big(gasStr)
}
if len(gasPriceStr) == 0 {
price = self.DefaultGasPrice()
} else {
price = common.Big(gasPriceStr)
}
data = common.FromHex(codeStr)
if len(toStr) == 0 {
contractCreation = true
}
if gas.Cmp(big.NewInt(90000)) < 0 {
glog.Infof("(Gas set to %v for hash: %x. Miners can ignore transactions with a low amount of gas.", gas, toStr)
}
// 2015-05-18 Is this still needed?
// TODO if no_private_key then
//if _, exists := p.register[args.From]; exists {
// p.register[args.From] = append(p.register[args.From], args)
//} else {
/*
account := accounts.Get(common.FromHex(args.From))
if account != nil {
if account.Unlocked() {
if !unlockAccount(account) {
return
}
}
result, _ := account.Transact(common.FromHex(args.To), common.FromHex(args.Value), common.FromHex(args.Gas), common.FromHex(args.GasPrice), common.FromHex(args.Data))
if len(result) > 0 {
*reply = common.ToHex(result)
}
} else if _, exists := p.register[args.From]; exists {
p.register[ags.From] = append(p.register[args.From], args)
}
*/
self.transactMu.Lock()
defer self.transactMu.Unlock()
var nonce uint64
if len(nonceStr) != 0 {
nonce = common.Big(nonceStr).Uint64()
} else {
state := self.backend.TxPool().State()
nonce = state.GetNonce(from)
}
var tx *types.Transaction
if contractCreation {
tx = types.NewContractCreation(nonce, value, gas, price, data)
} else {
tx = types.NewTransaction(nonce, to, value, gas, price, data)
}
signed, err := self.sign(tx, from, false)
if err != nil {
return "", err
}
if err = self.backend.TxPool().Add(signed, true); err != nil {
return "", err
}
if contractCreation {
addr := crypto.CreateAddress(from, nonce)
glog.V(logger.Info).Infof("Tx(%s) created: %s\n", signed.Hash().Hex(), addr.Hex())
} else {
glog.V(logger.Info).Infof("Tx(%s) to: %s\n", signed.Hash().Hex(), tx.To().Hex())
}
return signed.Hash().Hex(), nil
}
func (tx *tx) UnmarshalJSON(b []byte) (err error) {
var fields map[string]interface{}
if err := json.Unmarshal(b, &fields); err != nil {
return shared.NewDecodeParamError(err.Error())
}
var (
nonce uint64
to common.Address
amount = new(big.Int).Set(common.Big0)
gasLimit = new(big.Int).Set(common.Big0)
gasPrice = new(big.Int).Set(common.Big0)
data []byte
contractCreation = true
)
if val, found := fields["Hash"]; found {
if hashVal, ok := val.(string); ok {
tx.Hash = hashVal
}
}
if val, found := fields["To"]; found {
if strVal, ok := val.(string); ok && len(strVal) > 0 {
tx.To = strVal
to = common.HexToAddress(strVal)
contractCreation = false
}
}
if val, found := fields["From"]; found {
if strVal, ok := val.(string); ok {
tx.From = strVal
}
}
if val, found := fields["Nonce"]; found {
if strVal, ok := val.(string); ok {
tx.Nonce = strVal
if nonce, err = strconv.ParseUint(strVal, 10, 64); err != nil {
return shared.NewDecodeParamError(fmt.Sprintf("Unable to decode tx.Nonce - %v", err))
}
}
} else {
return shared.NewDecodeParamError("tx.Nonce not found")
}
var parseOk bool
if val, found := fields["Value"]; found {
if strVal, ok := val.(string); ok {
tx.Value = strVal
if _, parseOk = amount.SetString(strVal, 0); !parseOk {
return shared.NewDecodeParamError(fmt.Sprintf("Unable to decode tx.Amount - %v", err))
}
}
}
if val, found := fields["Data"]; found {
if strVal, ok := val.(string); ok {
tx.Data = strVal
if strings.HasPrefix(strVal, "0x") {
data = common.Hex2Bytes(strVal[2:])
} else {
data = common.Hex2Bytes(strVal)
}
}
}
if val, found := fields["GasLimit"]; found {
if strVal, ok := val.(string); ok {
tx.GasLimit = strVal
if _, parseOk = gasLimit.SetString(strVal, 0); !parseOk {
return shared.NewDecodeParamError(fmt.Sprintf("Unable to decode tx.GasLimit - %v", err))
}
}
}
if val, found := fields["GasPrice"]; found {
if strVal, ok := val.(string); ok {
tx.GasPrice = strVal
if _, parseOk = gasPrice.SetString(strVal, 0); !parseOk {
return shared.NewDecodeParamError(fmt.Sprintf("Unable to decode tx.GasPrice - %v", err))
}
}
}
if contractCreation {
tx.tx = types.NewContractCreation(nonce, amount, gasLimit, gasPrice, data)
} else {
tx.tx = types.NewTransaction(nonce, to, amount, gasLimit, gasPrice, data)
}
return nil
}