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
41 checkStatusCh chan struct{}
44 // TODO: set myself as SPV?
45 func NewMonitor(cfg *config.Config, db *gorm.DB) *monitor {
47 cfg.CheckFreqSeconds = 180
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),
81 checkStatusCh: make(chan struct{}, 1),
85 func makePath() (string, error) {
86 usr, err := user.Current()
91 dataPath := usr.HomeDir + "/.precog"
92 if err := os.MkdirAll(dataPath, os.ModePerm); err != nil {
96 tmpDir, err := ioutil.TempDir(dataPath, "")
104 func (m *monitor) Run() {
105 defer os.RemoveAll(m.nodeCfg.DBPath)
108 for _, node := range m.cfg.Nodes {
109 seeds = append(seeds, fmt.Sprintf("%s:%d", node.Host, node.Port))
110 if err := m.upSertNode(&node); err != nil {
114 m.nodeCfg.P2P.Seeds = strings.Join(seeds, ",")
115 if err := m.makeSwitch(); err != nil {
119 go m.discoveryRoutine()
120 go m.collectDiscoveredNodes()
121 go m.connectNodesRoutine()
122 go m.checkStatusRoutine()
125 func (m *monitor) makeSwitch() error {
126 l, listenAddr := p2p.GetListener(m.nodeCfg.P2P)
127 discv, err := dht.NewDiscover(m.nodeCfg, m.privKey, l.ExternalAddress().Port, m.cfg.NetworkID)
132 // no need for lanDiscv, but passing &mdns.LANDiscover{} will cause NilPointer
133 lanDiscv := mdns.NewLANDiscover(mdns.NewProtocol(), int(l.ExternalAddress().Port))
134 sw, err := p2p.NewSwitch(m.nodeCfg, discv, lanDiscv, l, m.privKey, listenAddr, m.cfg.NetworkID)
143 func (m *monitor) prepareReactors(peers *peers.PeerSet) error {
144 dispatcher := event.NewDispatcher()
145 // add ConsensusReactor for consensusChannel
146 _ = consensusmgr.NewManager(m.sw, m.chain, peers, dispatcher)
147 fastSyncDB := dbm.NewDB("fastsync", m.nodeCfg.DBBackend, m.nodeCfg.DBDir())
148 // add ProtocolReactor to handle msgs
149 _, err := chainmgr.NewManager(m.nodeCfg, m.sw, m.chain, m.txPool, dispatcher, peers, fastSyncDB)
154 for label, reactor := range m.sw.GetReactors() {
155 log.Debug("start reactor: (%s:%v)", label, reactor)
156 if _, err := reactor.Start(); err != nil {
161 m.sw.GetSecurity().RegisterFilter(m.sw.GetNodeInfo())
162 m.sw.GetSecurity().RegisterFilter(m.sw.GetPeers())
164 return m.sw.GetSecurity().Start()
167 func (m *monitor) checkStatusRoutine() {
168 peers := peers.NewPeerSet(m.sw)
169 if err := m.prepareReactors(peers); err != nil {
173 protocolReactor, ok := m.sw.GetReactors()["PROTOCOL"]
175 log.Fatal("protocolReactor not found")
178 bestHeight := uint64(0)
179 for range m.checkStatusCh {
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.")