node/node.go

   1 package node
   2
   3 import (
   4         "context"
   5         "errors"
   6         "net"
   7         "net/http"
   8         _ "net/http/pprof"
   9         "os"
  10         "path/filepath"
  11
  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"
  16
  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         "github.com/vapor/blockchain/txfeed"
  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/mining/cpuminer"
  30         "github.com/vapor/net/websocket"
  31         "github.com/vapor/netsync"
  32         "github.com/vapor/protocol"
  33         w "github.com/vapor/wallet"
  34 )
  35
  36 const (
  37         webHost   = "http://127.0.0.1"
  38         logModule = "node"
  39 )
  40
  41 // Node represent bytom node
  42 type Node struct {
  43         cmn.BaseService
  44
  45         config          *cfg.Config
  46         eventDispatcher *event.Dispatcher
  47         syncManager     *netsync.SyncManager
  48
  49         wallet          *w.Wallet
  50         accessTokens    *accesstoken.CredentialStore
  51         notificationMgr *websocket.WSNotificationManager
  52         api             *api.API
  53         chain           *protocol.Chain
  54         txfeed          *txfeed.Tracker
  55         cpuMiner        *cpuminer.CPUMiner
  56         miningEnable    bool
  57 }
  58
  59 // NewNode create bytom node
  60 func NewNode(config *cfg.Config) *Node {
  61         ctx := context.Background()
  62         if err := lockDataDirectory(config); err != nil {
  63                 cmn.Exit("Error: " + err.Error())
  64         }
  65         initLogFile(config)
  66         initActiveNetParams(config)
  67         initCommonConfig(config)
  68
  69         // Get store
  70         if config.DBBackend != "memdb" && config.DBBackend != "leveldb" {
  71                 cmn.Exit(cmn.Fmt("Param db_backend [%v] is invalid, use leveldb or memdb", config.DBBackend))
  72         }
  73         coreDB := dbm.NewDB("core", config.DBBackend, config.DBDir())
  74         store := database.NewStore(coreDB)
  75
  76         tokenDB := dbm.NewDB("accesstoken", config.DBBackend, config.DBDir())
  77         accessTokens := accesstoken.NewStore(tokenDB)
  78
  79         dispatcher := event.NewDispatcher()
  80         txPool := protocol.NewTxPool(store, dispatcher)
  81         chain, err := protocol.NewChain(store, txPool)
  82         if err != nil {
  83                 cmn.Exit(cmn.Fmt("Failed to create chain structure: %v", err))
  84         }
  85
  86         var accounts *account.Manager
  87         var assets *asset.Registry
  88         var wallet *w.Wallet
  89         var txFeed *txfeed.Tracker
  90
  91         txFeedDB := dbm.NewDB("txfeeds", config.DBBackend, config.DBDir())
  92         txFeed = txfeed.NewTracker(txFeedDB, chain)
  93
  94         if err = txFeed.Prepare(ctx); err != nil {
  95                 log.WithFields(log.Fields{"module": logModule, "error": err}).Error("start txfeed")
  96                 return nil
  97         }
  98
  99         hsm, err := pseudohsm.New(config.KeysDir())
 100         if err != nil {
 101                 cmn.Exit(cmn.Fmt("initialize HSM failed: %v", err))
 102         }
 103
 104         if !config.Wallet.Disable {
 105
 106                 log.Info(config.Fed.XPubs)
 107                 log.Info(config.Fed.Quorum)
 108
 109                 walletDB := dbm.NewDB("wallet", config.DBBackend, config.DBDir())
 110                 accounts = account.NewManager(walletDB, chain)
 111                 assets = asset.NewRegistry(walletDB, chain, config)
 112                 wallet, err = w.NewWallet(walletDB, accounts, assets, hsm, chain, dispatcher, config.Wallet.TxIndex)
 113                 if err != nil {
 114                         log.WithFields(log.Fields{"module": logModule, "error": err}).Error("init NewWallet")
 115                 }
 116
 117                 // trigger rescan wallet
 118                 if config.Wallet.Rescan {
 119                         wallet.RescanBlocks()
 120                 }
 121         }
 122
 123         syncManager, err := netsync.NewSyncManager(config, chain, txPool, dispatcher)
 124         if err != nil {
 125                 cmn.Exit(cmn.Fmt("Failed to create sync manager: %v", err))
 126         }
 127
 128         notificationMgr := websocket.NewWsNotificationManager(config.Websocket.MaxNumWebsockets, config.Websocket.MaxNumConcurrentReqs, chain, dispatcher)
 129
 130         // run the profile server
 131         profileHost := config.ProfListenAddress
 132         if profileHost != "" {
 133                 // Profiling bytomd programs.see (https://blog.golang.org/profiling-go-programs)
 134                 // go tool pprof http://profileHose/debug/pprof/heap
 135                 go func() {
 136                         if err = http.ListenAndServe(profileHost, nil); err != nil {
 137                                 cmn.Exit(cmn.Fmt("Failed to register tcp profileHost: %v", err))
 138                         }
 139                 }()
 140         }
 141
 142         node := &Node{
 143                 eventDispatcher: dispatcher,
 144                 config:          config,
 145                 syncManager:     syncManager,
 146                 accessTokens:    accessTokens,
 147                 wallet:          wallet,
 148                 chain:           chain,
 149                 txfeed:          txFeed,
 150                 miningEnable:    config.Mining,
 151
 152                 notificationMgr: notificationMgr,
 153         }
 154
 155         node.cpuMiner = cpuminer.NewCPUMiner(chain, accounts, txPool, dispatcher)
 156         node.BaseService = *cmn.NewBaseService(nil, "Node", node)
 157         return node
 158 }
 159
 160 // Lock data directory after daemonization
 161 func lockDataDirectory(config *cfg.Config) error {
 162         _, _, err := flock.New(filepath.Join(config.RootDir, "LOCK"))
 163         if err != nil {
 164                 return errors.New("datadir already used by another process")
 165         }
 166         return nil
 167 }
 168
 169 func initActiveNetParams(config *cfg.Config) {
 170         var exist bool
 171         consensus.ActiveNetParams, exist = consensus.NetParams[config.ChainID]
 172         if !exist {
 173                 cmn.Exit(cmn.Fmt("chain_id[%v] don't exist", config.ChainID))
 174         }
 175 }
 176
 177 func initLogFile(config *cfg.Config) {
 178         if config.LogFile == "" {
 179                 return
 180         }
 181         cmn.EnsureDir(filepath.Dir(config.LogFile), 0700)
 182         file, err := os.OpenFile(config.LogFile, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
 183         if err == nil {
 184                 log.SetOutput(file)
 185         } else {
 186                 log.WithFields(log.Fields{"module": logModule, "err": err}).Info("using default")
 187         }
 188
 189 }
 190
 191 func initCommonConfig(config *cfg.Config) {
 192         cfg.CommonConfig = config
 193 }
 194
 195 // Lanch web broser or not
 196 func launchWebBrowser(port string) {
 197         webAddress := webHost + ":" + port
 198         log.Info("Launching System Browser with :", webAddress)
 199         if err := browser.Open(webAddress); err != nil {
 200                 log.Error(err.Error())
 201                 return
 202         }
 203 }
 204
 205 func (n *Node) initAndstartAPIServer() {
 206         n.api = api.NewAPI(n.syncManager, n.wallet, n.txfeed, n.cpuMiner, n.chain, n.config, n.accessTokens, n.eventDispatcher, n.notificationMgr)
 207
 208         listenAddr := env.String("LISTEN", n.config.ApiAddress)
 209         env.Parse()
 210         n.api.StartServer(*listenAddr)
 211 }
 212
 213 func (n *Node) OnStart() error {
 214         if n.miningEnable {
 215                 if _, err := n.wallet.AccountMgr.GetMiningAddress(); err != nil {
 216                         n.miningEnable = false
 217                         log.Error(err)
 218                 } else {
 219                         n.cpuMiner.Start()
 220                 }
 221         }
 222         if !n.config.VaultMode {
 223                 if err := n.syncManager.Start(); err != nil {
 224                         return err
 225                 }
 226         }
 227
 228         n.initAndstartAPIServer()
 229         if err := n.notificationMgr.Start(); err != nil {
 230                 return err
 231         }
 232
 233         if !n.config.Web.Closed {
 234                 _, port, err := net.SplitHostPort(n.config.ApiAddress)
 235                 if err != nil {
 236                         log.Error("Invalid api address")
 237                         return err
 238                 }
 239                 launchWebBrowser(port)
 240         }
 241         return nil
 242 }
 243
 244 func (n *Node) OnStop() {
 245         n.notificationMgr.Shutdown()
 246         n.notificationMgr.WaitForShutdown()
 247         n.BaseService.OnStop()
 248         if n.miningEnable {
 249                 n.cpuMiner.Stop()
 250         }
 251         if !n.config.VaultMode {
 252                 n.syncManager.Stop()
 253         }
 254         n.eventDispatcher.Stop()
 255 }
 256
 257 func (n *Node) RunForever() {
 258         // Sleep forever and then...
 259         cmn.TrapSignal(func() {
 260                 n.Stop()
 261         })
 262 }