package ethui import ( "encoding/hex" "fmt" "github.com/ethereum/eth-go/ethchain" "github.com/ethereum/eth-go/ethutil" "github.com/ethereum/go-ethereum/utils" "github.com/obscuren/mutan" "github.com/obscuren/secp256k1-go" "strings" ) type EthLib struct { stateManager *ethchain.StateManager blockChain *ethchain.BlockChain txPool *ethchain.TxPool } func (lib *EthLib) ImportAndSetPrivKey(privKey string) bool { fmt.Println(privKey) mnemonic := strings.Split(privKey, " ") if len(mnemonic) == 24 { fmt.Println("Got mnemonic key, importing.") key := ethutil.MnemonicDecode(mnemonic) utils.ImportPrivateKey(key) } else if len(mnemonic) == 1 { fmt.Println("Got hex key, importing.") utils.ImportPrivateKey(privKey) } else { fmt.Println("Did not recognise format, exiting.") return false } return true } func (lib *EthLib) CreateAndSetPrivKey() (string, string, string, string) { pub, prv := secp256k1.GenerateKeyPair() pair := ðutil.Key{PrivateKey: prv, PublicKey: pub} ethutil.Config.Db.Put([]byte("KeyRing"), pair.RlpEncode()) mne := ethutil.MnemonicEncode(ethutil.Hex(prv)) mnemonicString := strings.Join(mne, " ") return mnemonicString, fmt.Sprintf("%x", pair.Address()), fmt.Sprintf("%x", prv), fmt.Sprintf("%x", pub) } func (lib *EthLib) CreateTx(recipient, valueStr, gasStr, gasPriceStr, data string) (string, error) { var hash []byte var contractCreation bool if len(recipient) == 0 { contractCreation = true } else { var err error hash, err = hex.DecodeString(recipient) if err != nil { return "", err } } keyPair := ethutil.Config.Db.GetKeys()[0] value := ethutil.Big(valueStr) gas := ethutil.Big(gasStr) gasPrice := ethutil.Big(gasPriceStr) var tx *ethchain.Transaction // Compile and assemble the given data if contractCreation { asm, errors := mutan.Compile(strings.NewReader(data), false) if len(errors) > 0 { var errs string for _, er := range errors { if er != nil { errs += er.Error() } } return "", fmt.Errorf(errs) } code := ethutil.Assemble(asm...) tx = ethchain.NewContractCreationTx(value, gasPrice, code) } else { tx = ethchain.NewTransactionMessage(hash, value, gasPrice, gas, nil) } acc := lib.stateManager.GetAddrState(keyPair.Address()) tx.Nonce = acc.Nonce //acc.Nonce++ tx.Sign(keyPair.PrivateKey) lib.txPool.QueueTransaction(tx) if contractCreation { ethutil.Config.Log.Infof("Contract addr %x", tx.Hash()[12:]) } else { ethutil.Config.Log.Infof("Tx hash %x", tx.Hash()) } return ethutil.Hex(tx.Hash()), nil } /* func (lib *EthLib) CreateTx(receiver, a, data string) string { var hash []byte if len(receiver) == 0 { hash = ethchain.ContractAddr } else { var err error hash, err = hex.DecodeString(receiver) if err != nil { return err.Error() } } k, _ := ethutil.Config.Db.Get([]byte("KeyRing")) keyPair := ethutil.NewKeyFromBytes(k) amount := ethutil.Big(a) code := ethchain.Compile(strings.Split(data, "\n")) tx := ethchain.NewTx(hash, amount, code) tx.Nonce = lib.stateManager.GetAddrState(keyPair.Address()).Nonce tx.Sign(keyPair.PrivateKey) lib.txPool.QueueTransaction(tx) if len(receiver) == 0 { ethutil.Config.Log.Infof("Contract addr %x", tx.Hash()[12:]) } else { ethutil.Config.Log.Infof("Tx hash %x", tx.Hash()) } return ethutil.Hex(tx.Hash()) } */ func (lib *EthLib) GetBlock(hexHash string) *Block { hash, err := hex.DecodeString(hexHash) if err != nil { return nil } block := lib.blockChain.GetBlock(hash) fmt.Println(block) return &Block{Number: int(block.BlockInfo().Number), Hash: ethutil.Hex(block.Hash())} }