package ethui import ( "encoding/hex" "fmt" "github.com/ethereum/eth-go/ethchain" "github.com/ethereum/eth-go/ethutil" "github.com/obscuren/mutan" "strings" ) type EthLib struct { stateManager *ethchain.StateManager blockChain *ethchain.BlockChain txPool *ethchain.TxPool } func (lib *EthLib) CreateTx(recipient, valueStr, gasStr, gasPriceStr, data string) string { 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.Error() } } 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, err := mutan.Compile(strings.NewReader(data), false) if err != nil { return err.Error() } code := ethutil.Assemble(asm...) tx = ethchain.NewContractCreationTx(value, gasPrice, code) } else { tx = ethchain.NewTransactionMessage(hash, value, gasPrice, gas, []string{}) } tx.Nonce = lib.stateManager.GetAddrState(keyPair.Address()).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()) } /* 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())} }