package ethpub import ( "encoding/hex" "github.com/ethereum/eth-go/ethchain" "github.com/ethereum/eth-go/ethutil" "math/big" "strings" ) type PEthereum struct { manager ethchain.EthManager stateManager *ethchain.StateManager blockChain *ethchain.BlockChain txPool *ethchain.TxPool } func NewPEthereum(manager ethchain.EthManager) *PEthereum { return &PEthereum{ manager, manager.StateManager(), manager.BlockChain(), manager.TxPool(), } } func (lib *PEthereum) GetBlock(hexHash string) *PBlock { hash := ethutil.FromHex(hexHash) block := lib.blockChain.GetBlock(hash) return NewPBlock(block) } func (lib *PEthereum) GetKey() *PKey { keyPair := ethutil.GetKeyRing().Get(0) return NewPKey(keyPair) } func (lib *PEthereum) GetStateObject(address string) *PStateObject { stateObject := lib.stateManager.CurrentState().GetStateObject(ethutil.FromHex(address)) if stateObject != nil { return NewPStateObject(stateObject) } // See GetStorage for explanation on "nil" return NewPStateObject(nil) } func (lib *PEthereum) GetPeerCount() int { return lib.manager.PeerCount() } func (lib *PEthereum) GetIsMining() bool { return lib.manager.IsMining() } func (lib *PEthereum) GetIsListening() bool { return lib.manager.IsListening() } func (lib *PEthereum) GetCoinBase() string { data, _ := ethutil.Config.Db.Get([]byte("KeyRing")) keyRing := ethutil.NewValueFromBytes(data) key := keyRing.Get(0).Bytes() return lib.SecretToAddress(hex.EncodeToString(key)) } func (lib *PEthereum) GetStorage(address, storageAddress string) string { return lib.GetStateObject(address).GetStorage(storageAddress) } func (lib *PEthereum) GetTxCountAt(address string) int { return lib.GetStateObject(address).Nonce() } func (lib *PEthereum) IsContract(address string) bool { return lib.GetStateObject(address).IsContract() } func (lib *PEthereum) SecretToAddress(key string) string { pair, err := ethutil.NewKeyPairFromSec(ethutil.FromHex(key)) if err != nil { return "" } return ethutil.Hex(pair.Address()) } func (lib *PEthereum) Transact(key, recipient, valueStr, gasStr, gasPriceStr, dataStr string) (*PReceipt, error) { return lib.createTx(key, recipient, valueStr, gasStr, gasPriceStr, dataStr) } func (lib *PEthereum) Create(key, valueStr, gasStr, gasPriceStr, script string) (*PReceipt, error) { return lib.createTx(key, "", valueStr, gasStr, gasPriceStr, script) } var namereg = ethutil.FromHex("bb5f186604d057c1c5240ca2ae0f6430138ac010") func GetAddressFromNameReg(stateManager *ethchain.StateManager, name string) []byte { recp := new(big.Int).SetBytes([]byte(name)) object := stateManager.CurrentState().GetStateObject(namereg) reg := object.GetStorage(recp) return reg.Bytes() } func (lib *PEthereum) createTx(key, recipient, valueStr, gasStr, gasPriceStr, scriptStr string) (*PReceipt, error) { var hash []byte var contractCreation bool if len(recipient) == 0 { contractCreation = true } else { // Check if an address is stored by this address addr := GetAddressFromNameReg(lib.stateManager, recipient) if len(addr) > 0 { hash = addr } else { hash = ethutil.FromHex(recipient) } } var keyPair *ethutil.KeyPair var err error if key[0:2] == "0x" { keyPair, err = ethutil.NewKeyPairFromSec([]byte(ethutil.FromHex(key[0:2]))) } else { keyPair, err = ethutil.NewKeyPairFromSec([]byte(ethutil.FromHex(key))) } if err != nil { return nil, err } value := ethutil.Big(valueStr) gas := ethutil.Big(gasStr) gasPrice := ethutil.Big(gasPriceStr) var tx *ethchain.Transaction // Compile and assemble the given data if contractCreation { var script []byte var err error if ethutil.IsHex(scriptStr) { script = ethutil.FromHex(scriptStr) } else { script, err = ethutil.Compile(scriptStr) if err != nil { return nil, err } } tx = ethchain.NewContractCreationTx(value, gas, gasPrice, script) } else { // Just in case it was submitted as a 0x prefixed string if len(scriptStr) > 0 && scriptStr[0:2] == "0x" { scriptStr = scriptStr[2:len(scriptStr)] } data := ethutil.StringToByteFunc(scriptStr, func(s string) (ret []byte) { slice := strings.Split(s, "\n") for _, dataItem := range slice { d := ethutil.FormatData(dataItem) ret = append(ret, d...) } return }) tx = ethchain.NewTransactionMessage(hash, value, gas, gasPrice, data) } acc := lib.stateManager.TransState().GetStateObject(keyPair.Address()) tx.Nonce = acc.Nonce acc.Nonce += 1 lib.stateManager.TransState().UpdateStateObject(acc) tx.Sign(keyPair.PrivateKey) lib.txPool.QueueTransaction(tx) if contractCreation { ethutil.Config.Log.Infof("Contract addr %x", tx.CreationAddress()) } else { ethutil.Config.Log.Infof("Tx hash %x", tx.Hash()) } return NewPReciept(contractCreation, tx.CreationAddress(), tx.Hash(), keyPair.Address()), nil }