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package coreth
import (
"crypto/ecdsa"
"fmt"
"io"
"os"
"github.com/ava-labs/coreth/consensus/dummy"
"github.com/ava-labs/coreth/core"
"github.com/ava-labs/coreth/eth"
"github.com/ava-labs/coreth/miner"
"github.com/ava-labs/coreth/node"
"github.com/ava-labs/go-ethereum/common"
"github.com/ava-labs/go-ethereum/core/state"
"github.com/ava-labs/go-ethereum/core/types"
"github.com/ava-labs/go-ethereum/crypto"
"github.com/ava-labs/go-ethereum/ethdb"
"github.com/ava-labs/go-ethereum/event"
"github.com/ava-labs/go-ethereum/log"
"github.com/ava-labs/go-ethereum/rpc"
"github.com/mattn/go-isatty"
)
var (
ZeroAddr = common.Address{
0, 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
}
func isLocalBlock(block *types.Block) bool {
return false
}
// 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)
ctx, ep, err := node.NewServiceContext(nodecfg, mux)
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(&ctx, config, cb, mcb, bcb, chainDB)
chain := ÐChain{backend: backend, cb: cb, mcb: mcb, bcb: bcb}
if etherBase == nil {
etherBase = &ZeroAddr
}
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) 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) 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)
}
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