151 lines
3.8 KiB
Go
151 lines
3.8 KiB
Go
package ethpipe
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import (
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"strings"
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"github.com/ethereum/eth-go/ethchain"
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"github.com/ethereum/eth-go/ethcrypto"
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"github.com/ethereum/eth-go/ethlog"
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"github.com/ethereum/eth-go/ethstate"
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"github.com/ethereum/eth-go/ethutil"
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"github.com/ethereum/eth-go/ethvm"
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)
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var logger = ethlog.NewLogger("PIPE")
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type VmVars struct {
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State *ethstate.State
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}
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type Pipe struct {
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obj ethchain.EthManager
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stateManager *ethchain.StateManager
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blockChain *ethchain.BlockChain
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world *World
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Vm VmVars
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}
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func New(obj ethchain.EthManager) *Pipe {
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pipe := &Pipe{
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obj: obj,
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stateManager: obj.StateManager(),
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blockChain: obj.BlockChain(),
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}
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pipe.world = NewWorld(pipe)
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return pipe
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}
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func (self *Pipe) Balance(addr []byte) *ethutil.Value {
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return ethutil.NewValue(self.World().safeGet(addr).Balance)
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}
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func (self *Pipe) Nonce(addr []byte) uint64 {
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return self.World().safeGet(addr).Nonce
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}
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func (self *Pipe) Execute(addr []byte, data []byte, value, gas, price *ethutil.Value) ([]byte, error) {
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return self.ExecuteObject(&Object{self.World().safeGet(addr)}, data, value, gas, price)
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}
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func (self *Pipe) ExecuteObject(object *Object, data []byte, value, gas, price *ethutil.Value) ([]byte, error) {
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var (
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initiator = ethstate.NewStateObject([]byte{0})
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block = self.blockChain.CurrentBlock
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stateObject = object.StateObject
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)
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if self.Vm.State == nil {
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self.Vm.State = self.World().State().Copy()
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}
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vm := ethvm.New(NewEnv(self.Vm.State, block, value.BigInt(), initiator.Address()))
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closure := ethvm.NewClosure(ðstate.Message{}, initiator, stateObject, object.Code, gas.BigInt(), price.BigInt())
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ret, _, err := closure.Call(vm, data)
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return ret, err
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}
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func (self *Pipe) Block(hash []byte) *ethchain.Block {
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return self.blockChain.GetBlock(hash)
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}
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func (self *Pipe) Storage(addr, storageAddr []byte) *ethutil.Value {
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return self.World().safeGet(addr).GetStorage(ethutil.BigD(storageAddr))
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}
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func (self *Pipe) ToAddress(priv []byte) []byte {
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pair, err := ethcrypto.NewKeyPairFromSec(priv)
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if err != nil {
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return nil
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}
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return pair.Address()
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}
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func (self *Pipe) Exists(addr []byte) bool {
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return self.World().Get(addr) != nil
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}
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func (self *Pipe) TransactString(key *ethcrypto.KeyPair, rec string, value, gas, price *ethutil.Value, data []byte) ([]byte, error) {
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// Check if an address is stored by this address
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var hash []byte
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addr := self.World().Config().Get("NameReg").StorageString(rec).Bytes()
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if len(addr) > 0 {
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hash = addr
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} else if ethutil.IsHex(rec) {
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hash = ethutil.Hex2Bytes(rec[2:])
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} else {
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hash = ethutil.Hex2Bytes(rec)
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}
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return self.Transact(key, hash, value, gas, price, data)
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}
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func (self *Pipe) Transact(key *ethcrypto.KeyPair, rec []byte, value, gas, price *ethutil.Value, data []byte) ([]byte, error) {
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var hash []byte
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var contractCreation bool
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if rec == nil {
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contractCreation = true
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}
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var tx *ethchain.Transaction
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// Compile and assemble the given data
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if contractCreation {
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script, err := ethutil.Compile(string(data), false)
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if err != nil {
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return nil, err
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}
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tx = ethchain.NewContractCreationTx(value.BigInt(), gas.BigInt(), price.BigInt(), script)
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} else {
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data := ethutil.StringToByteFunc(string(data), func(s string) (ret []byte) {
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slice := strings.Split(s, "\n")
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for _, dataItem := range slice {
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d := ethutil.FormatData(dataItem)
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ret = append(ret, d...)
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}
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return
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})
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tx = ethchain.NewTransactionMessage(hash, value.BigInt(), gas.BigInt(), price.BigInt(), data)
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}
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acc := self.stateManager.TransState().GetOrNewStateObject(key.Address())
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tx.Nonce = acc.Nonce
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acc.Nonce += 1
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self.stateManager.TransState().UpdateStateObject(acc)
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tx.Sign(key.PrivateKey)
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self.obj.TxPool().QueueTransaction(tx)
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if contractCreation {
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logger.Infof("Contract addr %x", tx.CreationAddress())
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return tx.CreationAddress(), nil
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}
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return tx.Hash(), nil
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}
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