node/node.go

   1 package node
   2
   3 import (
   4         "context"
   5         "errors"
   6         "net/http"
   7         _ "net/http/pprof"
   8         "os"
   9         "path/filepath"
  10         "strings"
  11
  12         "github.com/prometheus/prometheus/util/flock"
  13         log "github.com/sirupsen/logrus"
  14         cmn "github.com/tendermint/tmlibs/common"
  15         dbm "github.com/tendermint/tmlibs/db"
  16         browser "github.com/toqueteos/webbrowser"
  17
  18         "github.com/bytom/accesstoken"
  19         "github.com/bytom/account"
  20         "github.com/bytom/api"
  21         "github.com/bytom/asset"
  22         "github.com/bytom/blockchain/pseudohsm"
  23         "github.com/bytom/blockchain/txfeed"
  24         cfg "github.com/bytom/config"
  25         "github.com/bytom/consensus"
  26         "github.com/bytom/database/leveldb"
  27         "github.com/bytom/env"
  28         "github.com/bytom/mining/cpuminer"
  29         "github.com/bytom/mining/miningpool"
  30         "github.com/bytom/mining/tensority"
  31         "github.com/bytom/netsync"
  32         "github.com/bytom/protocol"
  33         "github.com/bytom/protocol/bc"
  34         w "github.com/bytom/wallet"
  35 )
  36
  37 const (
  38         webHost           = "http://127.0.0.1"
  39         maxNewBlockChSize = 1024
  40 )
  41
  42 type Node struct {
  43         cmn.BaseService
  44
  45         // config
  46         config *cfg.Config
  47
  48         syncManager *netsync.SyncManager
  49
  50         //bcReactor    *bc.BlockchainReactor
  51         wallet       *w.Wallet
  52         accessTokens *accesstoken.CredentialStore
  53         api          *api.API
  54         chain        *protocol.Chain
  55         txfeed       *txfeed.Tracker
  56         cpuMiner     *cpuminer.CPUMiner
  57         miningPool   *miningpool.MiningPool
  58         miningEnable bool
  59 }
  60
  61 func NewNode(config *cfg.Config) *Node {
  62         ctx := context.Background()
  63         if err := lockDataDirectory(config); err != nil {
  64                 cmn.Exit("Error: " + err.Error())
  65         }
  66         initLogFile(config)
  67         initActiveNetParams(config)
  68         // Get store
  69         coreDB := dbm.NewDB("core", config.DBBackend, config.DBDir())
  70         store := leveldb.NewStore(coreDB)
  71
  72         tokenDB := dbm.NewDB("accesstoken", config.DBBackend, config.DBDir())
  73         accessTokens := accesstoken.NewStore(tokenDB)
  74
  75         txPool := protocol.NewTxPool(store)
  76         chain, err := protocol.NewChain(store, txPool)
  77         if err != nil {
  78                 cmn.Exit(cmn.Fmt("Failed to create chain structure: %v", err))
  79         }
  80
  81         var accounts *account.Manager = nil
  82         var assets *asset.Registry = nil
  83         var wallet *w.Wallet = nil
  84         var txFeed *txfeed.Tracker = nil
  85
  86         txFeedDB := dbm.NewDB("txfeeds", config.DBBackend, config.DBDir())
  87         txFeed = txfeed.NewTracker(txFeedDB, chain)
  88
  89         if err = txFeed.Prepare(ctx); err != nil {
  90                 log.WithField("error", err).Error("start txfeed")
  91                 return nil
  92         }
  93
  94         hsm, err := pseudohsm.New(config.KeysDir())
  95         if err != nil {
  96                 cmn.Exit(cmn.Fmt("initialize HSM failed: %v", err))
  97         }
  98
  99         if !config.Wallet.Disable {
 100                 walletDB := dbm.NewDB("wallet", config.DBBackend, config.DBDir())
 101                 accounts = account.NewManager(walletDB, chain)
 102                 assets = asset.NewRegistry(walletDB, chain)
 103                 wallet, err = w.NewWallet(walletDB, accounts, assets, hsm, chain)
 104                 if err != nil {
 105                         log.WithField("error", err).Error("init NewWallet")
 106                 }
 107
 108                 // trigger rescan wallet
 109                 if config.Wallet.Rescan {
 110                         wallet.RescanBlocks()
 111                 }
 112         }
 113         newBlockCh := make(chan *bc.Hash, maxNewBlockChSize)
 114
 115         syncManager, _ := netsync.NewSyncManager(config, chain, txPool, newBlockCh)
 116
 117         // get transaction from txPool and send it to syncManager and wallet
 118         go newPoolTxListener(txPool, syncManager, wallet)
 119
 120         // run the profile server
 121         profileHost := config.ProfListenAddress
 122         if profileHost != "" {
 123                 // Profiling bytomd programs.see (https://blog.golang.org/profiling-go-programs)
 124                 // go tool pprof http://profileHose/debug/pprof/heap
 125                 go func() {
 126                         http.ListenAndServe(profileHost, nil)
 127                 }()
 128         }
 129
 130         node := &Node{
 131                 config:       config,
 132                 syncManager:  syncManager,
 133                 accessTokens: accessTokens,
 134                 wallet:       wallet,
 135                 chain:        chain,
 136                 txfeed:       txFeed,
 137                 miningEnable: config.Mining,
 138         }
 139
 140         node.cpuMiner = cpuminer.NewCPUMiner(chain, accounts, txPool, newBlockCh)
 141         node.miningPool = miningpool.NewMiningPool(chain, accounts, txPool, newBlockCh)
 142
 143         node.BaseService = *cmn.NewBaseService(nil, "Node", node)
 144
 145         if config.Simd.Enable {
 146                 tensority.UseSIMD = true
 147         }
 148
 149         return node
 150 }
 151
 152 // newPoolTxListener listener transaction from txPool, and send it to syncManager and wallet
 153 func newPoolTxListener(txPool *protocol.TxPool, syncManager *netsync.SyncManager, wallet *w.Wallet) {
 154         txMsgCh := txPool.GetMsgCh()
 155         syncManagerTxCh := syncManager.GetNewTxCh()
 156
 157         for {
 158                 msg := <-txMsgCh
 159                 switch msg.MsgType {
 160                 case protocol.MsgNewTx:
 161                         syncManagerTxCh <- msg.Tx
 162                         if wallet != nil {
 163                                 wallet.AddUnconfirmedTx(msg.TxDesc)
 164                         }
 165                 case protocol.MsgRemoveTx:
 166                         if wallet != nil {
 167                                 wallet.RemoveUnconfirmedTx(msg.TxDesc)
 168                         }
 169                 default:
 170                         log.Warn("got unknow message type from the txPool channel")
 171                 }
 172         }
 173 }
 174
 175 // Lock data directory after daemonization
 176 func lockDataDirectory(config *cfg.Config) error {
 177         _, _, err := flock.New(filepath.Join(config.RootDir, "LOCK"))
 178         if err != nil {
 179                 return errors.New("datadir already used by another process")
 180         }
 181         return nil
 182 }
 183
 184 func initActiveNetParams(config *cfg.Config) {
 185         var exist bool
 186         consensus.ActiveNetParams, exist = consensus.NetParams[config.ChainID]
 187         if !exist {
 188                 cmn.Exit(cmn.Fmt("chain_id[%v] don't exist", config.ChainID))
 189         }
 190 }
 191
 192 func initLogFile(config *cfg.Config) {
 193         if config.LogFile == "" {
 194                 return
 195         }
 196         cmn.EnsureDir(filepath.Dir(config.LogFile), 0700)
 197         file, err := os.OpenFile(config.LogFile, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
 198         if err == nil {
 199                 log.SetOutput(file)
 200         } else {
 201                 log.WithField("err", err).Info("using default")
 202         }
 203
 204 }
 205
 206 // Lanch web broser or not
 207 func launchWebBrowser(port string) {
 208         webAddress := webHost + ":" + port
 209         log.Info("Launching System Browser with :", webAddress)
 210         if err := browser.Open(webAddress); err != nil {
 211                 log.Error(err.Error())
 212                 return
 213         }
 214 }
 215
 216 func (n *Node) initAndstartApiServer() {
 217         n.api = api.NewAPI(n.syncManager, n.wallet, n.txfeed, n.cpuMiner, n.miningPool, n.chain, n.config, n.accessTokens)
 218
 219         listenAddr := env.String("LISTEN", n.config.ApiAddress)
 220         env.Parse()
 221         n.api.StartServer(*listenAddr)
 222 }
 223
 224 func (n *Node) OnStart() error {
 225         if n.miningEnable {
 226                 if _, err := n.wallet.AccountMgr.GetMiningAddress(); err != nil {
 227                         n.miningEnable = false
 228                         log.Error(err)
 229                 } else {
 230                         n.cpuMiner.Start()
 231                 }
 232         }
 233         if !n.config.VaultMode {
 234                 n.syncManager.Start()
 235         }
 236         n.initAndstartApiServer()
 237         if !n.config.Web.Closed {
 238                 s := strings.Split(n.config.ApiAddress, ":")
 239                 if len(s) != 2 {
 240                         log.Error("Invalid api address")
 241                 }
 242                 launchWebBrowser(s[1])
 243         }
 244         return nil
 245 }
 246
 247 func (n *Node) OnStop() {
 248         n.BaseService.OnStop()
 249         if n.miningEnable {
 250                 n.cpuMiner.Stop()
 251         }
 252         if !n.config.VaultMode {
 253                 n.syncManager.Stop()
 254         }
 255 }
 256
 257 func (n *Node) RunForever() {
 258         // Sleep forever and then...
 259         cmn.TrapSignal(func() {
 260                 n.Stop()
 261         })
 262 }
 263
 264 func (n *Node) SyncManager() *netsync.SyncManager {
 265         return n.syncManager
 266 }
 267
 268 func (n *Node) MiningPool() *miningpool.MiningPool {
 269         return n.miningPool
 270 }