コード例 #1
0
ファイル: xeth.go プロジェクト: codeaudit/shift
func (self *XEth) PushTx(encodedTx string) (string, error) {
	tx := new(types.Transaction)
	err := rlp.DecodeBytes(common.FromHex(encodedTx), tx)
	if err != nil {
		glog.V(logger.Error).Infoln(err)
		return "", err
	}

	err = self.backend.TxPool().Add(tx, true)
	if err != nil {
		return "", err
	}

	if tx.To() == nil {
		from, err := tx.From()
		if err != nil {
			return "", err
		}

		addr := crypto.CreateAddress(from, tx.Nonce())
		glog.V(logger.Info).Infof("Tx(%x) created: %x\n", tx.Hash(), addr)
	} else {
		glog.V(logger.Info).Infof("Tx(%x) to: %x\n", tx.Hash(), tx.To())
	}

	return tx.Hash().Hex(), nil
}
コード例 #2
0
ファイル: block_processor.go プロジェクト: codeaudit/shift
func (self *BlockProcessor) ApplyTransaction(gp GasPool, statedb *state.StateDB, header *types.Header, tx *types.Transaction, usedGas *big.Int, transientProcess bool) (*types.Receipt, *big.Int, error) {
	_, gas, err := ApplyMessage(NewEnv(statedb, self.bc, tx, header), tx, gp)
	if err != nil {
		return nil, nil, err
	}

	// Update the state with pending changes
	statedb.SyncIntermediate()

	usedGas.Add(usedGas, gas)
	receipt := types.NewReceipt(statedb.Root().Bytes(), usedGas)
	receipt.TxHash = tx.Hash()
	receipt.GasUsed = new(big.Int).Set(gas)
	if MessageCreatesContract(tx) {
		from, _ := tx.From()
		receipt.ContractAddress = crypto.CreateAddress(from, tx.Nonce())
	}

	logs := statedb.GetLogs(tx.Hash())
	receipt.SetLogs(logs)
	receipt.Bloom = types.CreateBloom(types.Receipts{receipt})

	glog.V(logger.Debug).Infoln(receipt)

	// Notify all subscribers
	if !transientProcess {
		go self.eventMux.Post(TxPostEvent{tx})
		go self.eventMux.Post(logs)
	}

	return receipt, gas, err
}
コード例 #3
0
ファイル: types.go プロジェクト: codeaudit/shift
func NewTx(tx *types.Transaction) *Transaction {
	sender, err := tx.From()
	if err != nil {
		return nil
	}
	hash := tx.Hash().Hex()

	var receiver string
	if to := tx.To(); to != nil {
		receiver = to.Hex()
	} else {
		from, _ := tx.From()
		receiver = crypto.CreateAddress(from, tx.Nonce()).Hex()
	}
	createsContract := core.MessageCreatesContract(tx)

	var data string
	if createsContract {
		data = strings.Join(core.Disassemble(tx.Data()), "\n")
	} else {
		data = common.ToHex(tx.Data())
	}

	return &Transaction{ref: tx, Hash: hash, Value: common.CurrencyToString(tx.Value()), Address: receiver, Contract: createsContract, Gas: tx.Gas().String(), GasPrice: tx.GasPrice().String(), Data: data, Sender: sender.Hex(), CreatesContract: createsContract, RawData: common.ToHex(tx.Data())}
}
コード例 #4
0
ファイル: util.go プロジェクト: codeaudit/shift
func (self *Env) Create(caller vm.ContextRef, data []byte, gas, price, value *big.Int) ([]byte, error, vm.ContextRef) {
	exe := self.vm(nil, data, gas, price, value)
	if self.vmTest {
		caller.ReturnGas(gas, price)

		nonce := self.state.GetNonce(caller.Address())
		obj := self.state.GetOrNewStateObject(crypto.CreateAddress(caller.Address(), nonce))

		return nil, nil, obj
	} else {
		return exe.Create(caller)
	}
}
コード例 #5
0
ファイル: execution.go プロジェクト: codeaudit/shift
// exec executes the given code and executes within the contextAddr context.
func (self *Execution) exec(contextAddr *common.Address, code []byte, caller vm.ContextRef) (ret []byte, err error) {
	env := self.env
	evm := self.evm
	// Depth check execution. Fail if we're trying to execute above the
	// limit.
	if env.Depth() > int(params.CallCreateDepth.Int64()) {
		caller.ReturnGas(self.Gas, self.price)

		return nil, vm.DepthError
	}

	if !env.CanTransfer(env.State().GetStateObject(caller.Address()), self.value) {
		caller.ReturnGas(self.Gas, self.price)

		return nil, ValueTransferErr("insufficient funds to transfer value. Req %v, has %v", self.value, env.State().GetBalance(caller.Address()))
	}

	var createAccount bool
	if self.address == nil {
		// Generate a new address
		nonce := env.State().GetNonce(caller.Address())
		env.State().SetNonce(caller.Address(), nonce+1)

		addr := crypto.CreateAddress(caller.Address(), nonce)

		self.address = &addr
		createAccount = true
	}
	snapshot := env.State().Copy()

	var (
		from = env.State().GetStateObject(caller.Address())
		to   *state.StateObject
	)
	if createAccount {
		to = env.State().CreateAccount(*self.address)
	} else {
		to = env.State().GetOrNewStateObject(*self.address)
	}
	vm.Transfer(from, to, self.value)

	context := vm.NewContext(caller, to, self.value, self.Gas, self.price)
	context.SetCallCode(contextAddr, code)

	ret, err = evm.Run(context, self.input)
	if err != nil {
		env.State().Set(snapshot)
	}

	return
}
コード例 #6
0
ファイル: xeth.go プロジェクト: codeaudit/shift
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
}