13 "github.com/prometheus/prometheus/util/flock"
14 log "github.com/sirupsen/logrus"
15 cmn "github.com/tendermint/tmlibs/common"
16 browser "github.com/toqueteos/webbrowser"
18 "github.com/vapor/accesstoken"
19 "github.com/vapor/account"
20 "github.com/vapor/api"
21 "github.com/vapor/asset"
22 "github.com/vapor/blockchain/pseudohsm"
23 cfg "github.com/vapor/config"
24 "github.com/vapor/consensus"
25 "github.com/vapor/database"
26 dbm "github.com/vapor/database/leveldb"
27 "github.com/vapor/env"
28 "github.com/vapor/event"
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 log.WithFields(log.Fields{
71 "pubkey": config.PrivateKey().XPub(),
72 "fed_xpubs": config.Federation.Xpubs,
73 "fed_quorum": config.Federation.Quorum,
74 "fed_controlprogram": hex.EncodeToString(cfg.FederationWScript(config)),
78 initActiveNetParams(config)
79 initCommonConfig(config)
82 if config.DBBackend != "memdb" && config.DBBackend != "leveldb" {
83 cmn.Exit(cmn.Fmt("Param db_backend [%v] is invalid, use leveldb or memdb", config.DBBackend))
85 coreDB := dbm.NewDB("core", config.DBBackend, config.DBDir())
86 store := database.NewStore(coreDB)
88 tokenDB := dbm.NewDB("accesstoken", config.DBBackend, config.DBDir())
89 accessTokens := accesstoken.NewStore(tokenDB)
91 dispatcher := event.NewDispatcher()
92 txPool := protocol.NewTxPool(store, dispatcher)
93 chain, err := protocol.NewChain(store, txPool, dispatcher)
95 cmn.Exit(cmn.Fmt("Failed to create chain structure: %v", err))
98 if err := checkConfig(chain, config); err != nil {
102 var accounts *account.Manager
103 var assets *asset.Registry
106 hsm, err := pseudohsm.New(config.KeysDir())
108 cmn.Exit(cmn.Fmt("initialize HSM failed: %v", err))
111 if !config.Wallet.Disable {
112 walletDB := dbm.NewDB("wallet", config.DBBackend, config.DBDir())
113 walletStore := database.NewWalletStore(walletDB)
114 accountStore := database.NewAccountStore(walletDB)
115 accounts = account.NewManager(accountStore, chain)
116 assets = asset.NewRegistry(walletDB, chain)
117 wallet, err = w.NewWallet(walletStore, accounts, assets, hsm, chain, dispatcher, config.Wallet.TxIndex)
119 log.WithFields(log.Fields{"module": logModule, "error": err}).Error("init NewWallet")
122 // trigger rescan wallet
123 if config.Wallet.Rescan {
124 wallet.RescanBlocks()
127 fastSyncDB := dbm.NewDB("fastsync", config.DBBackend, config.DBDir())
128 syncManager, err := netsync.NewSyncManager(config, chain, txPool, dispatcher,fastSyncDB)
130 cmn.Exit(cmn.Fmt("Failed to create sync manager: %v", err))
133 notificationMgr := websocket.NewWsNotificationManager(config.Websocket.MaxNumWebsockets, config.Websocket.MaxNumConcurrentReqs, chain, dispatcher)
135 // run the profile server
136 profileHost := config.ProfListenAddress
137 if profileHost != "" {
138 // Profiling vapord programs.see (https://blog.golang.org/profiling-go-programs)
139 // go tool pprof http://profileHose/debug/pprof/heap
141 if err = http.ListenAndServe(profileHost, nil); err != nil {
142 cmn.Exit(cmn.Fmt("Failed to register tcp profileHost: %v", err))
148 eventDispatcher: dispatcher,
150 syncManager: syncManager,
151 accessTokens: accessTokens,
154 miningEnable: config.Mining,
156 notificationMgr: notificationMgr,
159 node.cpuMiner = blockproposer.NewBlockProposer(chain, accounts, txPool, dispatcher)
160 node.BaseService = *cmn.NewBaseService(nil, "Node", node)
164 // find whether config xpubs equal genesis block xpubs
165 func checkConfig(chain *protocol.Chain, config *cfg.Config) error {
166 fedpegScript := cfg.FederationWScript(config)
167 genesisBlock, err := chain.GetBlockByHeight(0)
171 typedInput := genesisBlock.Transactions[0].Inputs[0].TypedInput
172 if v, ok := typedInput.(*types.CoinbaseInput); ok {
173 if !reflect.DeepEqual(fedpegScript, v.Arbitrary) {
174 return errors.New("config xpubs don't equal genesis block xpubs.")
180 // Lock data directory after daemonization
181 func lockDataDirectory(config *cfg.Config) error {
182 _, _, err := flock.New(filepath.Join(config.RootDir, "LOCK"))
184 return errors.New("datadir already used by another process")
189 func initActiveNetParams(config *cfg.Config) {
191 consensus.ActiveNetParams, exist = consensus.NetParams[config.ChainID]
193 cmn.Exit(cmn.Fmt("chain_id[%v] don't exist", config.ChainID))
197 func initLogFile(config *cfg.Config) {
198 if config.LogFile == "" {
201 cmn.EnsureDir(filepath.Dir(config.LogFile), 0700)
202 file, err := os.OpenFile(config.LogFile, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
206 log.WithFields(log.Fields{"module": logModule, "err": err}).Info("using default")
211 func initCommonConfig(config *cfg.Config) {
212 cfg.CommonConfig = config
215 // Lanch web broser or not
216 func launchWebBrowser(port string) {
217 webAddress := webHost + ":" + port
218 log.Info("Launching System Browser with :", webAddress)
219 if err := browser.Open(webAddress); err != nil {
220 log.Error(err.Error())
225 func (n *Node) initAndstartAPIServer() {
226 n.api = api.NewAPI(n.syncManager, n.wallet, n.cpuMiner, n.chain, n.config, n.accessTokens, n.eventDispatcher, n.notificationMgr)
228 listenAddr := env.String("LISTEN", n.config.ApiAddress)
230 n.api.StartServer(*listenAddr)
233 func (n *Node) OnStart() error {
235 if _, err := n.wallet.AccountMgr.GetMiningAddress(); err != nil {
236 n.miningEnable = false
242 if !n.config.VaultMode {
243 if err := n.syncManager.Start(); err != nil {
248 n.initAndstartAPIServer()
249 if err := n.notificationMgr.Start(); err != nil {
253 if !n.config.Web.Closed {
254 _, port, err := net.SplitHostPort(n.config.ApiAddress)
256 log.Error("Invalid api address")
259 launchWebBrowser(port)
264 func (n *Node) OnStop() {
265 n.notificationMgr.Shutdown()
266 n.notificationMgr.WaitForShutdown()
267 n.BaseService.OnStop()
271 if !n.config.VaultMode {
274 n.eventDispatcher.Stop()
277 func (n *Node) RunForever() {
278 // Sleep forever and then...
279 cmn.TrapSignal(func() {