12 "github.com/jinzhu/gorm"
13 log "github.com/sirupsen/logrus"
15 vaporCfg "github.com/vapor/config"
16 "github.com/vapor/crypto/ed25519/chainkd"
17 dbm "github.com/vapor/database/leveldb"
18 "github.com/vapor/event"
19 "github.com/vapor/netsync/chainmgr"
20 "github.com/vapor/netsync/consensusmgr"
21 "github.com/vapor/p2p"
22 // msgs "github.com/vapor/netsync/messages"
23 "github.com/vapor/netsync/peers"
24 "github.com/vapor/p2p/discover/dht"
25 "github.com/vapor/p2p/discover/mdns"
26 "github.com/vapor/p2p/signlib"
27 "github.com/vapor/test/mock"
28 "github.com/vapor/toolbar/precog/config"
35 nodeCfg *vaporCfg.Config
37 discvCh chan *dht.Node
44 // TODO: set myself as SPV?
45 func NewMonitor(cfg *config.Config, db *gorm.DB) *monitor {
47 cfg.CheckFreqSeconds = 120
49 dbPath, err := makePath()
54 nodeCfg := &vaporCfg.Config{
55 BaseConfig: vaporCfg.DefaultBaseConfig(),
56 P2P: vaporCfg.DefaultP2PConfig(),
57 Federation: vaporCfg.DefaultFederationConfig(),
59 nodeCfg.DBPath = dbPath
60 nodeCfg.ChainID = "mainnet"
61 discvCh := make(chan *dht.Node)
62 privKey, err := signlib.NewPrivKey()
67 chain, txPool, err := mockChainAndPool()
73 RWMutex: &sync.RWMutex{},
78 privKey: privKey.(chainkd.XPrv),
84 func makePath() (string, error) {
85 usr, err := user.Current()
90 dataPath := usr.HomeDir + "/.precog"
91 if err := os.MkdirAll(dataPath, os.ModePerm); err != nil {
95 tmpDir, err := ioutil.TempDir(dataPath, "")
103 func (m *monitor) Run() {
104 defer os.RemoveAll(m.nodeCfg.DBPath)
107 for _, node := range m.cfg.Nodes {
108 seeds = append(seeds, fmt.Sprintf("%s:%d", node.Host, node.Port))
109 if err := m.upSertNode(&node); err != nil {
113 m.nodeCfg.P2P.Seeds = strings.Join(seeds, ",")
114 if err := m.makeSwitch(); err != nil {
118 go m.discoveryRoutine()
119 go m.collectDiscoveredNodes()
120 go m.connectNodesRoutine()
121 go m.checkStatusRoutine()
124 func (m *monitor) makeSwitch() error {
125 l, listenAddr := p2p.GetListener(m.nodeCfg.P2P)
126 discv, err := dht.NewDiscover(m.nodeCfg, m.privKey, l.ExternalAddress().Port, m.cfg.NetworkID)
131 // no need for lanDiscv, but passing &mdns.LANDiscover{} will cause NilPointer
132 lanDiscv := mdns.NewLANDiscover(mdns.NewProtocol(), int(l.ExternalAddress().Port))
133 sw, err := p2p.NewSwitch(m.nodeCfg, discv, lanDiscv, l, m.privKey, listenAddr, m.cfg.NetworkID)
142 func (m *monitor) prepareReactors(peers *peers.PeerSet) error {
143 dispatcher := event.NewDispatcher()
144 // add ConsensusReactor for consensusChannel
145 _ = consensusmgr.NewManager(m.sw, m.chain, peers, dispatcher)
146 fastSyncDB := dbm.NewDB("fastsync", m.nodeCfg.DBBackend, m.nodeCfg.DBDir())
147 // add ProtocolReactor to handle msgs
148 _, err := chainmgr.NewManager(m.nodeCfg, m.sw, m.chain, m.txPool, dispatcher, peers, fastSyncDB)
153 for label, reactor := range m.sw.GetReactors() {
154 log.Debug("start reactor: (%s:%v)", label, reactor)
155 if _, err := reactor.Start(); err != nil {
160 m.sw.GetSecurity().RegisterFilter(m.sw.GetNodeInfo())
161 m.sw.GetSecurity().RegisterFilter(m.sw.GetPeers())
163 return m.sw.GetSecurity().Start()
166 func (m *monitor) checkStatusRoutine() {
167 peers := peers.NewPeerSet(m.sw)
168 if err := m.prepareReactors(peers); err != nil {
172 protocolReactor, ok := m.sw.GetReactors()["PROTOCOL"]
174 log.Fatal("protocolReactor not found")
177 bestHeight := uint64(0)
178 ticker := time.NewTicker(time.Duration(m.cfg.CheckFreqSeconds) * time.Second)
181 log.Info("connected peers: ", m.sw.GetPeers().List())
183 for _, peer := range m.sw.GetPeers().List() {
185 protocolReactor.AddPeer(peer)
188 for _, peer := range m.sw.GetPeers().List() {
189 p := peers.GetPeer(peer.ID())
194 if err := p.SendStatus(m.chain.BestBlockHeader(), m.chain.LastIrreversibleHeader()); err != nil {
195 peers.RemovePeer(p.ID())
199 for _, peerInfo := range peers.GetPeerInfos() {
200 if peerInfo.Height > bestHeight {
201 bestHeight = peerInfo.Height
204 m.savePeerInfo(peerInfo)
206 log.Info("bestHeight: ", bestHeight)
209 // msg := struct{ msgs.BlockchainMessage }{&msgs.GetBlockMessage{Height: bestHeight + 1}}
210 // for _, peer := range m.sw.GetPeers().List() {
211 // peers.SendMsg(peer.ID(), msgs.BlockchainChannel, msg)
214 for _, peer := range m.sw.GetPeers().List() {
215 p := peers.GetPeer(peer.ID())
220 peers.RemovePeer(p.ID())
222 log.Info("Disonnect all peers.")