10 "github.com/jinzhu/gorm"
11 log "github.com/sirupsen/logrus"
13 vaporCfg "github.com/vapor/config"
14 "github.com/vapor/crypto/ed25519/chainkd"
15 dbm "github.com/vapor/database/leveldb"
16 "github.com/vapor/errors"
17 "github.com/vapor/event"
18 "github.com/vapor/netsync/chainmgr"
19 "github.com/vapor/netsync/consensusmgr"
20 "github.com/vapor/netsync/peers"
21 "github.com/vapor/p2p"
22 "github.com/vapor/p2p/discover/dht"
23 "github.com/vapor/p2p/discover/mdns"
24 "github.com/vapor/p2p/signlib"
25 "github.com/vapor/test/mock"
26 "github.com/vapor/toolbar/precog/config"
33 nodeCfg *vaporCfg.Config
38 // discvMap maps a node's public key to the node itself
39 discvMap map[string]*dht.Node
41 checkStatusCh chan struct{}
46 func NewMonitor(cfg *config.Config, db *gorm.DB) *monitor {
47 dbPath, err := makePath()
49 log.WithFields(log.Fields{"err": err}).Fatal("makePath")
52 nodeCfg := &vaporCfg.Config{
53 BaseConfig: vaporCfg.DefaultBaseConfig(),
54 P2P: vaporCfg.DefaultP2PConfig(),
55 Federation: vaporCfg.DefaultFederationConfig(),
57 nodeCfg.DBPath = dbPath
58 nodeCfg.ChainID = "mainnet"
59 privKey, err := signlib.NewPrivKey()
61 log.WithFields(log.Fields{"err": err}).Fatal("NewPrivKey")
64 chain, txPool, err := mockChainAndPool()
66 log.WithFields(log.Fields{"err": err}).Fatal("mockChainAndPool")
70 RWMutex: &sync.RWMutex{},
74 privKey: privKey.(chainkd.XPrv),
77 discvMap: make(map[string]*dht.Node),
78 dialCh: make(chan struct{}, 1),
79 checkStatusCh: make(chan struct{}, 1),
80 bestHeightSeen: uint64(0),
84 func makePath() (string, error) {
85 usr, err := user.Current()
90 dataPath := usr.HomeDir + "/.vapor/precog"
91 if err := os.MkdirAll(dataPath, os.ModePerm); err != nil {
98 func (m *monitor) Run() {
100 for _, node := range m.cfg.Nodes {
101 seeds = append(seeds, fmt.Sprintf("%s:%d", node.IP, node.Port))
102 if err := m.upSertNode(&node); err != nil {
103 log.WithFields(log.Fields{"node": node, "err": err}).Error("upSertNode")
106 m.nodeCfg.P2P.Seeds = strings.Join(seeds, ",")
107 if err := m.makeSwitch(); err != nil {
108 log.WithFields(log.Fields{"err": err}).Fatal("makeSwitch")
111 m.dialCh <- struct{}{}
112 go m.discoveryRoutine()
113 go m.connectNodesRoutine()
114 go m.checkStatusRoutine()
117 func (m *monitor) makeSwitch() error {
118 l, listenAddr := p2p.GetListener(m.nodeCfg.P2P)
119 discv, err := dht.NewDiscover(m.nodeCfg, m.privKey, l.ExternalAddress().Port, m.cfg.NetworkID)
124 // no need for lanDiscv, but passing &mdns.LANDiscover{} will cause NilPointer
125 lanDiscv := mdns.NewLANDiscover(mdns.NewProtocol(), int(l.ExternalAddress().Port))
126 m.sw, err = p2p.NewSwitch(m.nodeCfg, discv, lanDiscv, l, m.privKey, listenAddr, m.cfg.NetworkID)
131 m.peers = peers.NewPeerSet(m.sw)
132 if err := m.prepareReactors(m.peers); err != nil {
133 return errors.Wrap(err, "prepareReactors")
139 func (m *monitor) prepareReactors(peers *peers.PeerSet) error {
140 dispatcher := event.NewDispatcher()
141 // add ConsensusReactor for consensusChannel
142 _ = consensusmgr.NewManager(m.sw, m.chain, peers, dispatcher)
143 fastSyncDB := dbm.NewDB("fastsync", m.nodeCfg.DBBackend, m.nodeCfg.DBDir())
144 // add ProtocolReactor to handle msgs
145 if _, err := chainmgr.NewManager(m.nodeCfg, m.sw, m.chain, m.txPool, dispatcher, peers, fastSyncDB); err != nil {
149 for label, reactor := range m.sw.GetReactors() {
150 log.WithFields(log.Fields{"label": label, "reactor": reactor}).Debug("start reactor")
151 if _, err := reactor.Start(); err != nil {
156 m.sw.GetSecurity().RegisterFilter(m.sw.GetNodeInfo())
157 m.sw.GetSecurity().RegisterFilter(m.sw.GetPeers())
158 return m.sw.GetSecurity().Start()
161 func (m *monitor) checkStatusRoutine() {
162 for range m.checkStatusCh {
163 for _, peer := range m.sw.GetPeers().List() {
165 m.peers.AddPeer(peer)
167 log.WithFields(log.Fields{"num": len(m.sw.GetPeers().List()), "peers": m.sw.GetPeers().List()}).Info("connected peers")
169 for _, peer := range m.sw.GetPeers().List() {
170 p := m.peers.GetPeer(peer.ID())
175 if err := p.SendStatus(m.chain.BestBlockHeader(), m.chain.LastIrreversibleHeader()); err != nil {
176 log.WithFields(log.Fields{"peer": p, "err": err}).Error("SendStatus")
177 m.peers.RemovePeer(p.ID())
181 for _, peerInfo := range m.peers.GetPeerInfos() {
182 if peerInfo.Height > m.bestHeightSeen {
183 m.bestHeightSeen = peerInfo.Height
186 log.WithFields(log.Fields{"bestHeight": m.bestHeightSeen}).Info("peersInfo")
187 m.processPeerInfos(m.peers.GetPeerInfos())
189 for _, peer := range m.sw.GetPeers().List() {
190 p := m.peers.GetPeer(peer.ID())
195 m.peers.RemovePeer(p.ID())
197 log.Info("Disonnect all peers.")
200 m.dialCh <- struct{}{}