12 "github.com/prometheus/prometheus/util/flock"
13 log "github.com/sirupsen/logrus"
14 cmn "github.com/tendermint/tmlibs/common"
15 browser "github.com/toqueteos/webbrowser"
17 "github.com/vapor/accesstoken"
18 "github.com/vapor/account"
19 "github.com/vapor/api"
20 "github.com/vapor/asset"
21 "github.com/vapor/blockchain/pseudohsm"
22 cfg "github.com/vapor/config"
23 "github.com/vapor/consensus"
24 "github.com/vapor/database"
25 dbm "github.com/vapor/database/leveldb"
26 "github.com/vapor/env"
27 "github.com/vapor/event"
28 vaporLog "github.com/vapor/log"
29 "github.com/vapor/net/websocket"
30 "github.com/vapor/netsync"
31 "github.com/vapor/proposal/blockproposer"
32 "github.com/vapor/protocol"
33 "github.com/vapor/protocol/bc/types"
34 w "github.com/vapor/wallet"
38 webHost = "http://127.0.0.1"
42 // Node represent bytom node
47 eventDispatcher *event.Dispatcher
48 syncManager *netsync.SyncManager
51 accessTokens *accesstoken.CredentialStore
52 notificationMgr *websocket.WSNotificationManager
55 cpuMiner *blockproposer.BlockProposer
59 // NewNode create bytom node
60 func NewNode(config *cfg.Config) *Node {
61 if err := lockDataDirectory(config); err != nil {
62 cmn.Exit("Error: " + err.Error())
65 if err := cfg.LoadFederationFile(config.FederationFile(), config); err != nil {
66 cmn.Exit(cmn.Fmt("Failed to load federated information:[%s]", err.Error()))
69 vaporLog.InitLogFile(config)
71 log.WithFields(log.Fields{
73 "pubkey": config.PrivateKey().XPub(),
74 "fed_xpubs": config.Federation.Xpubs,
75 "fed_quorum": config.Federation.Quorum,
76 "fed_controlprogram": hex.EncodeToString(cfg.FederationWScript(config)),
79 if err := consensus.InitActiveNetParams(config.ChainID); err != nil {
80 log.Fatalf("Failed to init ActiveNetParams:[%s]", err.Error())
83 initCommonConfig(config)
86 if config.DBBackend != "memdb" && config.DBBackend != "leveldb" {
87 cmn.Exit(cmn.Fmt("Param db_backend [%v] is invalid, use leveldb or memdb", config.DBBackend))
89 coreDB := dbm.NewDB("core", config.DBBackend, config.DBDir())
90 store := database.NewStore(coreDB)
92 tokenDB := dbm.NewDB("accesstoken", config.DBBackend, config.DBDir())
93 accessTokens := accesstoken.NewStore(tokenDB)
95 dispatcher := event.NewDispatcher()
96 txPool := protocol.NewTxPool(store, dispatcher)
97 chain, err := protocol.NewChain(store, txPool, dispatcher)
99 cmn.Exit(cmn.Fmt("Failed to create chain structure: %v", err))
102 if err := checkConfig(chain, config); err != nil {
106 var accounts *account.Manager
107 var assets *asset.Registry
110 hsm, err := pseudohsm.New(config.KeysDir())
112 cmn.Exit(cmn.Fmt("initialize HSM failed: %v", err))
115 if !config.Wallet.Disable {
116 walletDB := dbm.NewDB("wallet", config.DBBackend, config.DBDir())
117 walletStore := database.NewWalletStore(walletDB)
118 accountStore := database.NewAccountStore(walletDB)
119 accounts = account.NewManager(accountStore, chain)
120 assets = asset.NewRegistry(walletDB, chain)
121 wallet, err = w.NewWallet(walletStore, accounts, assets, hsm, chain, dispatcher, config.Wallet.TxIndex)
123 log.WithFields(log.Fields{"module": logModule, "error": err}).Error("init NewWallet")
126 // trigger rescan wallet
127 if config.Wallet.Rescan {
128 wallet.RescanBlocks()
131 fastSyncDB := dbm.NewDB("fastsync", config.DBBackend, config.DBDir())
132 syncManager, err := netsync.NewSyncManager(config, chain, txPool, dispatcher, fastSyncDB)
134 cmn.Exit(cmn.Fmt("Failed to create sync manager: %v", err))
137 notificationMgr := websocket.NewWsNotificationManager(config.Websocket.MaxNumWebsockets, config.Websocket.MaxNumConcurrentReqs, chain, dispatcher)
139 // run the profile server
140 profileHost := config.ProfListenAddress
141 if profileHost != "" {
142 // Profiling vapord programs.see (https://blog.golang.org/profiling-go-programs)
143 // go tool pprof http://profileHose/debug/pprof/heap
145 if err = http.ListenAndServe(profileHost, nil); err != nil {
146 cmn.Exit(cmn.Fmt("Failed to register tcp profileHost: %v", err))
152 eventDispatcher: dispatcher,
154 syncManager: syncManager,
155 accessTokens: accessTokens,
158 miningEnable: config.Mining,
160 notificationMgr: notificationMgr,
163 node.cpuMiner = blockproposer.NewBlockProposer(chain, accounts, txPool, dispatcher)
164 node.BaseService = *cmn.NewBaseService(nil, "Node", node)
168 // find whether config xpubs equal genesis block xpubs
169 func checkConfig(chain *protocol.Chain, config *cfg.Config) error {
170 fedpegScript := cfg.FederationWScript(config)
171 genesisBlock, err := chain.GetBlockByHeight(0)
175 typedInput := genesisBlock.Transactions[0].Inputs[0].TypedInput
176 if v, ok := typedInput.(*types.CoinbaseInput); ok {
177 if !reflect.DeepEqual(fedpegScript, v.Arbitrary) {
178 return errors.New("config xpubs don't equal genesis block xpubs.")
184 // Lock data directory after daemonization
185 func lockDataDirectory(config *cfg.Config) error {
186 _, _, err := flock.New(filepath.Join(config.RootDir, "LOCK"))
188 return errors.New("datadir already used by another process")
193 func initCommonConfig(config *cfg.Config) {
194 cfg.CommonConfig = config
197 // Lanch web broser or not
198 func launchWebBrowser(port string) {
199 webAddress := webHost + ":" + port
200 log.Info("Launching System Browser with :", webAddress)
201 if err := browser.Open(webAddress); err != nil {
202 log.Error(err.Error())
207 func (n *Node) initAndstartAPIServer() {
208 n.api = api.NewAPI(n.syncManager, n.wallet, n.cpuMiner, n.chain, n.config, n.accessTokens, n.eventDispatcher, n.notificationMgr)
210 listenAddr := env.String("LISTEN", n.config.ApiAddress)
212 n.api.StartServer(*listenAddr)
215 func (n *Node) OnStart() error {
217 if _, err := n.wallet.AccountMgr.GetMiningAddress(); err != nil {
218 n.miningEnable = false
224 if !n.config.VaultMode {
225 if err := n.syncManager.Start(); err != nil {
230 n.initAndstartAPIServer()
231 if err := n.notificationMgr.Start(); err != nil {
235 if !n.config.Web.Closed {
236 _, port, err := net.SplitHostPort(n.config.ApiAddress)
238 log.Error("Invalid api address")
241 launchWebBrowser(port)
246 func (n *Node) OnStop() {
247 n.notificationMgr.Shutdown()
248 n.notificationMgr.WaitForShutdown()
249 n.BaseService.OnStop()
253 if !n.config.VaultMode {
256 n.eventDispatcher.Stop()
259 func (n *Node) RunForever() {
260 // Sleep forever and then...
261 cmn.TrapSignal(func() {