7 log "github.com/sirupsen/logrus"
9 cfg "github.com/vapor/config"
10 "github.com/vapor/consensus"
11 dbm "github.com/vapor/database/leveldb"
12 "github.com/vapor/event"
13 msgs "github.com/vapor/netsync/messages"
14 "github.com/vapor/netsync/peers"
15 "github.com/vapor/p2p"
16 "github.com/vapor/p2p/security"
17 core "github.com/vapor/protocol"
18 "github.com/vapor/protocol/bc"
19 "github.com/vapor/protocol/bc/types"
26 // Chain is the interface for Bytom core
27 type Chain interface {
28 BestBlockHeader() *types.BlockHeader
29 LastIrreversibleHeader() *types.BlockHeader
30 BestBlockHeight() uint64
31 GetBlockByHash(*bc.Hash) (*types.Block, error)
32 GetBlockByHeight(uint64) (*types.Block, error)
33 GetHeaderByHash(*bc.Hash) (*types.BlockHeader, error)
34 GetHeaderByHeight(uint64) (*types.BlockHeader, error)
35 GetTransactionStatus(*bc.Hash) (*bc.TransactionStatus, error)
36 InMainChain(bc.Hash) bool
37 ProcessBlock(*types.Block) (bool, error)
38 ValidateTx(*types.Tx) (bool, error)
41 type Switch interface {
42 AddReactor(name string, reactor p2p.Reactor) p2p.Reactor
46 DialPeerWithAddress(addr *p2p.NetAddress) error
50 // Mempool is the interface for Bytom mempool
51 type Mempool interface {
52 GetTransactions() []*core.TxDesc
55 //Manager is responsible for the business layer information synchronization
60 blockKeeper *blockKeeper
63 txSyncCh chan *txSyncMsg
67 eventDispatcher *event.Dispatcher
68 txMsgSub *event.Subscription
71 //NewChainManager create a chain sync manager.
72 func NewManager(config *cfg.Config, sw Switch, chain Chain, mempool Mempool, dispatcher *event.Dispatcher, peers *peers.PeerSet, fastSyncDB dbm.DB) (*Manager, error) {
77 blockKeeper: newBlockKeeper(chain, peers, fastSyncDB),
79 txSyncCh: make(chan *txSyncMsg),
80 quit: make(chan struct{}),
82 eventDispatcher: dispatcher,
85 if !config.VaultMode {
86 protocolReactor := NewProtocolReactor(manager)
87 manager.sw.AddReactor("PROTOCOL", protocolReactor)
92 func (m *Manager) AddPeer(peer peers.BasePeer) {
96 //IsCaughtUp check wheather the peer finish the sync
97 func (m *Manager) IsCaughtUp() bool {
98 peer := m.peers.BestPeer(consensus.SFFullNode)
99 return peer == nil || peer.Height() <= m.chain.BestBlockHeight()
102 func (m *Manager) handleBlockMsg(peer *peers.Peer, msg *msgs.BlockMessage) {
103 block, err := msg.GetBlock()
107 m.blockKeeper.processBlock(peer.ID(), block)
110 func (m *Manager) handleBlocksMsg(peer *peers.Peer, msg *msgs.BlocksMessage) {
111 blocks, err := msg.GetBlocks()
113 log.WithFields(log.Fields{"module": logModule, "err": err}).Debug("fail on handleBlocksMsg GetBlocks")
117 m.blockKeeper.processBlocks(peer.ID(), blocks)
120 func (m *Manager) handleFilterAddMsg(peer *peers.Peer, msg *msgs.FilterAddMessage) {
121 peer.AddFilterAddress(msg.Address)
124 func (m *Manager) handleFilterClearMsg(peer *peers.Peer) {
128 func (m *Manager) handleFilterLoadMsg(peer *peers.Peer, msg *msgs.FilterLoadMessage) {
129 peer.AddFilterAddresses(msg.Addresses)
132 func (m *Manager) handleGetBlockMsg(peer *peers.Peer, msg *msgs.GetBlockMessage) {
133 var block *types.Block
136 block, err = m.chain.GetBlockByHeight(msg.Height)
138 block, err = m.chain.GetBlockByHash(msg.GetHash())
141 log.WithFields(log.Fields{"module": logModule, "err": err}).Warning("fail on handleGetBlockMsg get block from chain")
145 ok, err := peer.SendBlock(block)
147 m.peers.RemovePeer(peer.ID())
150 log.WithFields(log.Fields{"module": logModule, "err": err}).Error("fail on handleGetBlockMsg sentBlock")
154 func (m *Manager) handleGetBlocksMsg(peer *peers.Peer, msg *msgs.GetBlocksMessage) {
155 blocks, err := m.blockKeeper.locateBlocks(msg.GetBlockLocator(), msg.GetStopHash())
156 if err != nil || len(blocks) == 0 {
161 sendBlocks := []*types.Block{}
162 for _, block := range blocks {
163 rawData, err := block.MarshalText()
165 log.WithFields(log.Fields{"module": logModule, "err": err}).Error("fail on handleGetBlocksMsg marshal block")
169 if totalSize+len(rawData) > msgs.MaxBlockchainResponseSize/2 {
172 totalSize += len(rawData)
173 sendBlocks = append(sendBlocks, block)
176 ok, err := peer.SendBlocks(sendBlocks)
178 m.peers.RemovePeer(peer.ID())
181 log.WithFields(log.Fields{"module": logModule, "err": err}).Error("fail on handleGetBlocksMsg sentBlock")
185 func (m *Manager) handleGetHeadersMsg(peer *peers.Peer, msg *msgs.GetHeadersMessage) {
186 headers, err := m.blockKeeper.locateHeaders(msg.GetBlockLocator(), msg.GetStopHash(), msg.GetSkip(), maxNumOfHeadersPerMsg)
187 if err != nil || len(headers) == 0 {
188 log.WithFields(log.Fields{"module": logModule, "err": err}).Debug("fail on handleGetHeadersMsg locateHeaders")
192 ok, err := peer.SendHeaders(headers)
194 m.peers.RemovePeer(peer.ID())
197 log.WithFields(log.Fields{"module": logModule, "err": err}).Error("fail on handleGetHeadersMsg sentBlock")
201 func (m *Manager) handleGetMerkleBlockMsg(peer *peers.Peer, msg *msgs.GetMerkleBlockMessage) {
203 var block *types.Block
205 block, err = m.chain.GetBlockByHeight(msg.Height)
207 block, err = m.chain.GetBlockByHash(msg.GetHash())
210 log.WithFields(log.Fields{"module": logModule, "err": err}).Warning("fail on handleGetMerkleBlockMsg get block from chain")
214 blockHash := block.Hash()
215 txStatus, err := m.chain.GetTransactionStatus(&blockHash)
217 log.WithFields(log.Fields{"module": logModule, "err": err}).Warning("fail on handleGetMerkleBlockMsg get transaction status")
221 ok, err := peer.SendMerkleBlock(block, txStatus)
223 log.WithFields(log.Fields{"module": logModule, "err": err}).Error("fail on handleGetMerkleBlockMsg sentMerkleBlock")
228 m.peers.RemovePeer(peer.ID())
232 func (m *Manager) handleHeadersMsg(peer *peers.Peer, msg *msgs.HeadersMessage) {
233 headers, err := msg.GetHeaders()
235 log.WithFields(log.Fields{"module": logModule, "err": err}).Debug("fail on handleHeadersMsg GetHeaders")
239 m.blockKeeper.processHeaders(peer.ID(), headers)
242 func (m *Manager) handleStatusMsg(basePeer peers.BasePeer, msg *msgs.StatusMessage) {
243 if peer := m.peers.GetPeer(basePeer.ID()); peer != nil {
244 peer.SetBestStatus(msg.BestHeight, msg.GetBestHash())
245 peer.SetIrreversibleStatus(msg.IrreversibleHeight, msg.GetIrreversibleHash())
249 func (m *Manager) handleTransactionMsg(peer *peers.Peer, msg *msgs.TransactionMessage) {
250 tx, err := msg.GetTransaction()
252 m.peers.ProcessIllegal(peer.ID(), security.LevelConnException, "fail on get tx from message")
256 m.peers.MarkTx(peer.ID(), tx.ID)
257 if isOrphan, err := m.chain.ValidateTx(tx); err != nil && err != core.ErrDustTx && !isOrphan {
258 m.peers.ProcessIllegal(peer.ID(), security.LevelMsgIllegal, "fail on validate tx transaction")
262 func (m *Manager) handleTransactionsMsg(peer *peers.Peer, msg *msgs.TransactionsMessage) {
263 txs, err := msg.GetTransactions()
265 m.peers.ProcessIllegal(peer.ID(), security.LevelConnException, "fail on get txs from message")
269 if len(txs) > msgs.TxsMsgMaxTxNum {
270 m.peers.ProcessIllegal(peer.ID(), security.LevelMsgIllegal, "exceeded the maximum tx number limit")
274 for _, tx := range txs {
275 m.peers.MarkTx(peer.ID(), tx.ID)
276 if isOrphan, err := m.chain.ValidateTx(tx); err != nil && !isOrphan {
277 m.peers.ProcessIllegal(peer.ID(), security.LevelMsgIllegal, "fail on validate tx transaction")
283 func (m *Manager) processMsg(basePeer peers.BasePeer, msgType byte, msg msgs.BlockchainMessage) {
284 peer := m.peers.GetPeer(basePeer.ID())
289 log.WithFields(log.Fields{
291 "peer": basePeer.Addr(),
292 "type": reflect.TypeOf(msg),
293 "message": msg.String(),
294 }).Debug("receive message from peer")
296 switch msg := msg.(type) {
297 case *msgs.GetBlockMessage:
298 m.handleGetBlockMsg(peer, msg)
300 case *msgs.BlockMessage:
301 m.handleBlockMsg(peer, msg)
303 case *msgs.StatusMessage:
304 m.handleStatusMsg(basePeer, msg)
306 case *msgs.TransactionMessage:
307 m.handleTransactionMsg(peer, msg)
309 case *msgs.TransactionsMessage:
310 m.handleTransactionsMsg(peer, msg)
312 case *msgs.GetHeadersMessage:
313 m.handleGetHeadersMsg(peer, msg)
315 case *msgs.HeadersMessage:
316 m.handleHeadersMsg(peer, msg)
318 case *msgs.GetBlocksMessage:
319 m.handleGetBlocksMsg(peer, msg)
321 case *msgs.BlocksMessage:
322 m.handleBlocksMsg(peer, msg)
324 case *msgs.FilterLoadMessage:
325 m.handleFilterLoadMsg(peer, msg)
327 case *msgs.FilterAddMessage:
328 m.handleFilterAddMsg(peer, msg)
330 case *msgs.FilterClearMessage:
331 m.handleFilterClearMsg(peer)
333 case *msgs.GetMerkleBlockMessage:
334 m.handleGetMerkleBlockMsg(peer, msg)
337 log.WithFields(log.Fields{
339 "peer": basePeer.Addr(),
340 "message_type": reflect.TypeOf(msg),
341 }).Error("unhandled message type")
345 func (m *Manager) RemovePeer(peerID string) {
346 m.peers.RemovePeer(peerID)
349 func (m *Manager) SendStatus(peer peers.BasePeer) error {
350 p := m.peers.GetPeer(peer.ID())
352 return errors.New("invalid peer")
355 if err := p.SendStatus(m.chain.BestBlockHeader(), m.chain.LastIrreversibleHeader()); err != nil {
356 m.peers.RemovePeer(p.ID())
362 func (m *Manager) Start() error {
364 m.txMsgSub, err = m.eventDispatcher.Subscribe(core.TxMsgEvent{})
368 m.blockKeeper.start()
369 go m.broadcastTxsLoop()
370 go m.syncMempoolLoop()
375 //Stop stop sync manager
376 func (m *Manager) Stop() {