319 lines
8.8 KiB
Go
319 lines
8.8 KiB
Go
package eth
|
|
|
|
import (
|
|
"crypto/ecdsa"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"path"
|
|
"strings"
|
|
|
|
"github.com/ethereum/ethash"
|
|
"github.com/ethereum/go-ethereum/accounts"
|
|
"github.com/ethereum/go-ethereum/blockpool"
|
|
"github.com/ethereum/go-ethereum/core"
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
"github.com/ethereum/go-ethereum/ethdb"
|
|
"github.com/ethereum/go-ethereum/ethutil"
|
|
"github.com/ethereum/go-ethereum/event"
|
|
"github.com/ethereum/go-ethereum/logger"
|
|
"github.com/ethereum/go-ethereum/miner"
|
|
"github.com/ethereum/go-ethereum/p2p"
|
|
"github.com/ethereum/go-ethereum/p2p/discover"
|
|
"github.com/ethereum/go-ethereum/p2p/nat"
|
|
"github.com/ethereum/go-ethereum/rpc"
|
|
"github.com/ethereum/go-ethereum/whisper"
|
|
)
|
|
|
|
var (
|
|
ethlogger = logger.NewLogger("SERV")
|
|
jsonlogger = logger.NewJsonLogger()
|
|
|
|
defaultBootNodes = []*discover.Node{
|
|
// ETH/DEV cmd/bootnode
|
|
discover.MustParseNode("enode://6cdd090303f394a1cac34ecc9f7cda18127eafa2a3a06de39f6d920b0e583e062a7362097c7c65ee490a758b442acd5c80c6fce4b148c6a391e946b45131365b@54.169.166.226:30303"),
|
|
// ETH/DEV cpp-ethereum (poc-8.ethdev.com)
|
|
discover.MustParseNode("enode://4a44599974518ea5b0f14c31c4463692ac0329cb84851f3435e6d1b18ee4eae4aa495f846a0fa1219bd58035671881d44423876e57db2abd57254d0197da0ebe@5.1.83.226:30303"),
|
|
}
|
|
)
|
|
|
|
type Config struct {
|
|
Name string
|
|
DataDir string
|
|
LogFile string
|
|
LogLevel int
|
|
LogFormat string
|
|
|
|
MaxPeers int
|
|
Port string
|
|
|
|
// This should be a space-separated list of
|
|
// discovery node URLs.
|
|
BootNodes string
|
|
|
|
// This key is used to identify the node on the network.
|
|
// If nil, an ephemeral key is used.
|
|
NodeKey *ecdsa.PrivateKey
|
|
|
|
NAT nat.Interface
|
|
Shh bool
|
|
Dial bool
|
|
|
|
MinerThreads int
|
|
AccountManager *accounts.AccountManager
|
|
}
|
|
|
|
func (cfg *Config) parseBootNodes() []*discover.Node {
|
|
if cfg.BootNodes == "" {
|
|
return defaultBootNodes
|
|
}
|
|
var ns []*discover.Node
|
|
for _, url := range strings.Split(cfg.BootNodes, " ") {
|
|
if url == "" {
|
|
continue
|
|
}
|
|
n, err := discover.ParseNode(url)
|
|
if err != nil {
|
|
ethlogger.Errorf("Bootstrap URL %s: %v\n", url, err)
|
|
continue
|
|
}
|
|
ns = append(ns, n)
|
|
}
|
|
return ns
|
|
}
|
|
|
|
func (cfg *Config) nodeKey() (*ecdsa.PrivateKey, error) {
|
|
// use explicit key from command line args if set
|
|
if cfg.NodeKey != nil {
|
|
return cfg.NodeKey, nil
|
|
}
|
|
// use persistent key if present
|
|
keyfile := path.Join(cfg.DataDir, "nodekey")
|
|
key, err := crypto.LoadECDSA(keyfile)
|
|
if err == nil {
|
|
return key, nil
|
|
}
|
|
// no persistent key, generate and store a new one
|
|
if key, err = crypto.GenerateKey(); err != nil {
|
|
return nil, fmt.Errorf("could not generate server key: %v", err)
|
|
}
|
|
if err := ioutil.WriteFile(keyfile, crypto.FromECDSA(key), 0600); err != nil {
|
|
ethlogger.Errorln("could not persist nodekey: ", err)
|
|
}
|
|
return key, nil
|
|
}
|
|
|
|
type Ethereum struct {
|
|
// Channel for shutting down the ethereum
|
|
shutdownChan chan bool
|
|
|
|
// DB interface
|
|
db ethutil.Database
|
|
|
|
//*** SERVICES ***
|
|
// State manager for processing new blocks and managing the over all states
|
|
blockProcessor *core.BlockProcessor
|
|
txPool *core.TxPool
|
|
chainManager *core.ChainManager
|
|
blockPool *blockpool.BlockPool
|
|
accountManager *accounts.AccountManager
|
|
whisper *whisper.Whisper
|
|
|
|
net *p2p.Server
|
|
eventMux *event.TypeMux
|
|
txSub event.Subscription
|
|
blockSub event.Subscription
|
|
miner *miner.Miner
|
|
|
|
RpcServer rpc.RpcServer
|
|
|
|
logger logger.LogSystem
|
|
|
|
Mining bool
|
|
DataDir string
|
|
}
|
|
|
|
func New(config *Config) (*Ethereum, error) {
|
|
// Boostrap database
|
|
ethlogger := logger.New(config.DataDir, config.LogFile, config.LogLevel, config.LogFormat)
|
|
|
|
db, err := ethdb.NewLDBDatabase(path.Join(config.DataDir, "blockchain"))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Perform database sanity checks
|
|
d, _ := db.Get([]byte("ProtocolVersion"))
|
|
protov := ethutil.NewValue(d).Uint()
|
|
if protov != ProtocolVersion && protov != 0 {
|
|
path := path.Join(config.DataDir, "blockchain")
|
|
return nil, fmt.Errorf("Database version mismatch. Protocol(%d / %d). `rm -rf %s`", protov, ProtocolVersion, path)
|
|
}
|
|
|
|
saveProtocolVersion(db)
|
|
//ethutil.Config.Db = db
|
|
|
|
eth := &Ethereum{
|
|
shutdownChan: make(chan bool),
|
|
db: db,
|
|
eventMux: &event.TypeMux{},
|
|
logger: ethlogger,
|
|
accountManager: config.AccountManager,
|
|
DataDir: config.DataDir,
|
|
}
|
|
|
|
cb, err := eth.accountManager.Coinbase()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("no coinbase: %v", err)
|
|
}
|
|
|
|
eth.chainManager = core.NewChainManager(db, eth.EventMux())
|
|
pow := ethash.New(eth.chainManager)
|
|
eth.txPool = core.NewTxPool(eth.EventMux())
|
|
eth.blockProcessor = core.NewBlockProcessor(db, pow, eth.txPool, eth.chainManager, eth.EventMux())
|
|
eth.chainManager.SetProcessor(eth.blockProcessor)
|
|
eth.whisper = whisper.New()
|
|
eth.miner = miner.New(cb, eth, pow, config.MinerThreads)
|
|
|
|
hasBlock := eth.chainManager.HasBlock
|
|
insertChain := eth.chainManager.InsertChain
|
|
eth.blockPool = blockpool.New(hasBlock, insertChain, pow.Verify)
|
|
|
|
netprv, err := config.nodeKey()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
ethProto := EthProtocol(eth.txPool, eth.chainManager, eth.blockPool)
|
|
protocols := []p2p.Protocol{ethProto}
|
|
if config.Shh {
|
|
protocols = append(protocols, eth.whisper.Protocol())
|
|
}
|
|
|
|
eth.net = &p2p.Server{
|
|
PrivateKey: netprv,
|
|
Name: config.Name,
|
|
MaxPeers: config.MaxPeers,
|
|
Protocols: protocols,
|
|
NAT: config.NAT,
|
|
NoDial: !config.Dial,
|
|
BootstrapNodes: config.parseBootNodes(),
|
|
}
|
|
if len(config.Port) > 0 {
|
|
eth.net.ListenAddr = ":" + config.Port
|
|
}
|
|
|
|
return eth, nil
|
|
}
|
|
|
|
func (s *Ethereum) Logger() logger.LogSystem { return s.logger }
|
|
func (s *Ethereum) Name() string { return s.net.Name }
|
|
func (s *Ethereum) AccountManager() *accounts.AccountManager { return s.accountManager }
|
|
func (s *Ethereum) ChainManager() *core.ChainManager { return s.chainManager }
|
|
func (s *Ethereum) BlockProcessor() *core.BlockProcessor { return s.blockProcessor }
|
|
func (s *Ethereum) TxPool() *core.TxPool { return s.txPool }
|
|
func (s *Ethereum) BlockPool() *blockpool.BlockPool { return s.blockPool }
|
|
func (s *Ethereum) Whisper() *whisper.Whisper { return s.whisper }
|
|
func (s *Ethereum) EventMux() *event.TypeMux { return s.eventMux }
|
|
func (s *Ethereum) Db() ethutil.Database { return s.db }
|
|
func (s *Ethereum) Miner() *miner.Miner { return s.miner }
|
|
func (s *Ethereum) IsListening() bool { return true } // Always listening
|
|
func (s *Ethereum) PeerCount() int { return s.net.PeerCount() }
|
|
func (s *Ethereum) Peers() []*p2p.Peer { return s.net.Peers() }
|
|
func (s *Ethereum) MaxPeers() int { return s.net.MaxPeers }
|
|
|
|
// Start the ethereum
|
|
func (s *Ethereum) Start() error {
|
|
jsonlogger.LogJson(&logger.LogStarting{
|
|
ClientString: s.net.Name,
|
|
ProtocolVersion: ProtocolVersion,
|
|
})
|
|
|
|
err := s.net.Start()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Start services
|
|
s.txPool.Start()
|
|
s.blockPool.Start()
|
|
|
|
if s.whisper != nil {
|
|
s.whisper.Start()
|
|
}
|
|
|
|
// broadcast transactions
|
|
s.txSub = s.eventMux.Subscribe(core.TxPreEvent{})
|
|
go s.txBroadcastLoop()
|
|
|
|
// broadcast mined blocks
|
|
s.blockSub = s.eventMux.Subscribe(core.NewMinedBlockEvent{})
|
|
go s.blockBroadcastLoop()
|
|
|
|
ethlogger.Infoln("Server started")
|
|
return nil
|
|
}
|
|
|
|
func (self *Ethereum) SuggestPeer(nodeURL string) error {
|
|
n, err := discover.ParseNode(nodeURL)
|
|
if err != nil {
|
|
return fmt.Errorf("invalid node URL: %v", err)
|
|
}
|
|
self.net.SuggestPeer(n)
|
|
return nil
|
|
}
|
|
|
|
func (s *Ethereum) Stop() {
|
|
// Close the database
|
|
defer s.db.Close()
|
|
|
|
s.txSub.Unsubscribe() // quits txBroadcastLoop
|
|
s.blockSub.Unsubscribe() // quits blockBroadcastLoop
|
|
|
|
if s.RpcServer != nil {
|
|
s.RpcServer.Stop()
|
|
}
|
|
|
|
s.txPool.Stop()
|
|
s.eventMux.Stop()
|
|
s.blockPool.Stop()
|
|
if s.whisper != nil {
|
|
s.whisper.Stop()
|
|
}
|
|
|
|
ethlogger.Infoln("Server stopped")
|
|
close(s.shutdownChan)
|
|
}
|
|
|
|
// This function will wait for a shutdown and resumes main thread execution
|
|
func (s *Ethereum) WaitForShutdown() {
|
|
<-s.shutdownChan
|
|
}
|
|
|
|
// now tx broadcasting is taken out of txPool
|
|
// handled here via subscription, efficiency?
|
|
func (self *Ethereum) txBroadcastLoop() {
|
|
// automatically stops if unsubscribe
|
|
for obj := range self.txSub.Chan() {
|
|
event := obj.(core.TxPreEvent)
|
|
self.net.Broadcast("eth", TxMsg, event.Tx.RlpData())
|
|
}
|
|
}
|
|
|
|
func (self *Ethereum) blockBroadcastLoop() {
|
|
// automatically stops if unsubscribe
|
|
for obj := range self.blockSub.Chan() {
|
|
switch ev := obj.(type) {
|
|
case core.NewMinedBlockEvent:
|
|
self.net.Broadcast("eth", NewBlockMsg, ev.Block.RlpData(), ev.Block.Td)
|
|
}
|
|
}
|
|
}
|
|
|
|
func saveProtocolVersion(db ethutil.Database) {
|
|
d, _ := db.Get([]byte("ProtocolVersion"))
|
|
protocolVersion := ethutil.NewValue(d).Uint()
|
|
|
|
if protocolVersion == 0 {
|
|
db.Put([]byte("ProtocolVersion"), ethutil.NewValue(ProtocolVersion).Bytes())
|
|
}
|
|
}
|