package coreth import ( "crypto/ecdsa" "io" "os" "github.com/ava-labs/coreth/consensus/dummy" "github.com/ava-labs/coreth/core" "github.com/ava-labs/coreth/core/state" "github.com/ava-labs/coreth/core/types" "github.com/ava-labs/coreth/eth" "github.com/ava-labs/coreth/miner" "github.com/ava-labs/coreth/node" "github.com/ava-labs/coreth/rpc" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/ethdb" "github.com/ethereum/go-ethereum/event" "github.com/ethereum/go-ethereum/log" "github.com/ethereum/go-ethereum/trie" "github.com/mattn/go-isatty" ) var ( BlackholeAddr = common.Address{ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, } ) type Tx = types.Transaction type Block = types.Block type Hash = common.Hash type ETHChain struct { backend *eth.Ethereum cb *dummy.ConsensusCallbacks mcb *miner.MinerCallbacks bcb *eth.BackendCallbacks } // NewETHChain creates an Ethereum blockchain with the given configs. func NewETHChain(config *eth.Config, nodecfg *node.Config, etherBase *common.Address, chainDB ethdb.Database) *ETHChain { if config == nil { config = ð.DefaultConfig } if nodecfg == nil { nodecfg = &node.Config{} } //mux := new(event.TypeMux) node, err := node.New(nodecfg) if err != nil { panic(err) } //if ep != "" { // log.Info(fmt.Sprintf("temporary keystore = %s", ep)) //} cb := new(dummy.ConsensusCallbacks) mcb := new(miner.MinerCallbacks) bcb := new(eth.BackendCallbacks) backend, _ := eth.New(node, config, cb, mcb, bcb, chainDB) chain := ÐChain{backend: backend, cb: cb, mcb: mcb, bcb: bcb} if etherBase == nil { etherBase = &BlackholeAddr } backend.SetEtherbase(*etherBase) return chain } func (self *ETHChain) Start() { self.backend.StartMining(0) } func (self *ETHChain) Stop() { self.backend.StopPart() } func (self *ETHChain) GenBlock() { self.backend.Miner().GenBlock() } func (self *ETHChain) SubscribeNewMinedBlockEvent() *event.TypeMuxSubscription { return self.backend.Miner().GetWorkerMux().Subscribe(core.NewMinedBlockEvent{}) } func (self *ETHChain) BlockChain() *core.BlockChain { return self.backend.BlockChain() } func (self *ETHChain) VerifyBlock(block *types.Block) bool { txnHash := types.DeriveSha(block.Transactions(), new(trie.Trie)) uncleHash := types.CalcUncleHash(block.Uncles()) ethHeader := block.Header() if txnHash != ethHeader.TxHash || uncleHash != ethHeader.UncleHash { return false } return true } func (self *ETHChain) PendingSize() (int, error) { pending, err := self.backend.TxPool().Pending() count := 0 for _, txs := range pending { count += len(txs) } return count, err } func (self *ETHChain) AddRemoteTxs(txs []*types.Transaction) []error { return self.backend.TxPool().AddRemotes(txs) } func (self *ETHChain) AddLocalTxs(txs []*types.Transaction) []error { return self.backend.TxPool().AddLocals(txs) } func (self *ETHChain) SetOnSeal(cb func(*types.Block) error) { self.cb.OnSeal = cb } func (self *ETHChain) SetOnSealHash(cb func(*types.Header)) { self.cb.OnSealHash = cb } func (self *ETHChain) SetOnSealFinish(cb func(*types.Block) error) { self.mcb.OnSealFinish = cb } func (self *ETHChain) SetOnHeaderNew(cb func(*types.Header)) { self.mcb.OnHeaderNew = cb } func (self *ETHChain) SetOnSealDrop(cb func(*types.Block)) { self.mcb.OnSealDrop = cb } func (self *ETHChain) SetOnAPIs(cb dummy.OnAPIsCallbackType) { self.cb.OnAPIs = cb } func (self *ETHChain) SetOnFinalize(cb dummy.OnFinalizeCallbackType) { self.cb.OnFinalize = cb } func (self *ETHChain) SetOnFinalizeAndAssemble(cb dummy.OnFinalizeAndAssembleCallbackType) { self.cb.OnFinalizeAndAssemble = cb } func (self *ETHChain) SetOnExtraStateChange(cb dummy.OnExtraStateChangeType) { self.cb.OnExtraStateChange = cb } func (self *ETHChain) SetOnQueryAcceptedBlock(cb func() *types.Block) { self.bcb.OnQueryAcceptedBlock = cb } // Returns a new mutable state based on the current HEAD block. func (self *ETHChain) CurrentState() (*state.StateDB, error) { return self.backend.BlockChain().State() } // Returns a new mutable state based on the given block. func (self *ETHChain) BlockState(block *types.Block) (*state.StateDB, error) { return self.backend.BlockChain().StateAt(block.Root()) } // Retrives a block from the database by hash. func (self *ETHChain) GetBlockByHash(hash common.Hash) *types.Block { return self.backend.BlockChain().GetBlockByHash(hash) } // SetTail sets the current head block to the one defined by the hash // irrelevant what the chain contents were prior. func (self *ETHChain) SetTail(hash common.Hash) error { return self.backend.BlockChain().ManualHead(hash) } func (self *ETHChain) GetReceiptsByHash(hash common.Hash) types.Receipts { return self.backend.BlockChain().GetReceiptsByHash(hash) } func (self *ETHChain) GetGenesisBlock() *types.Block { return self.backend.BlockChain().Genesis() } func (self *ETHChain) InsertChain(chain []*types.Block) (int, error) { return self.backend.BlockChain().InsertChain(chain) } func (self *ETHChain) NewRPCHandler() *rpc.Server { return rpc.NewServer() } func (self *ETHChain) AttachEthService(handler *rpc.Server, namespaces []string) { nsmap := make(map[string]bool) for _, ns := range namespaces { nsmap[ns] = true } for _, api := range self.backend.APIs() { if nsmap[api.Namespace] { handler.RegisterName(api.Namespace, api.Service) } } } // TODO: use SubscribeNewTxsEvent() func (self *ETHChain) GetTxSubmitCh() <-chan struct{} { return self.backend.GetTxSubmitCh() } func (self *ETHChain) GetTxPool() *core.TxPool { return self.backend.TxPool() } type Key struct { Address common.Address PrivateKey *ecdsa.PrivateKey } func NewKeyFromECDSA(privateKeyECDSA *ecdsa.PrivateKey) *Key { key := &Key{ Address: crypto.PubkeyToAddress(privateKeyECDSA.PublicKey), PrivateKey: privateKeyECDSA, } return key } func NewKey(rand io.Reader) (*Key, error) { privateKeyECDSA, err := ecdsa.GenerateKey(crypto.S256(), rand) if err != nil { return nil, err } return NewKeyFromECDSA(privateKeyECDSA), nil } func init() { usecolor := (isatty.IsTerminal(os.Stderr.Fd()) || isatty.IsCygwinTerminal(os.Stderr.Fd())) && os.Getenv("TERM") != "dumb" glogger := log.StreamHandler(io.Writer(os.Stderr), log.TerminalFormat(usecolor)) log.Root().SetHandler(glogger) }