The core protocol of WoopChain
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woop/node/node_explorer.go

205 lines
7.0 KiB

package node
import (
"encoding/binary"
"sort"
"sync"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/rlp"
protobuf "github.com/golang/protobuf/proto"
msg_pb "github.com/harmony-one/harmony/api/proto/message"
"github.com/harmony-one/harmony/api/service/explorer"
"github.com/harmony-one/harmony/consensus"
"github.com/harmony-one/harmony/core"
"github.com/harmony-one/harmony/core/types"
"github.com/harmony-one/harmony/internal/utils"
"github.com/harmony-one/harmony/shard"
)
var once sync.Once
// ExplorerMessageHandler passes received message in node_handler to explorer service
func (node *Node) ExplorerMessageHandler(payload []byte) {
if len(payload) == 0 {
utils.Logger().Error().Msg("Payload is empty")
return
}
msg := &msg_pb.Message{}
err := protobuf.Unmarshal(payload, msg)
if err != nil {
utils.Logger().Error().Err(err).Msg("Failed to unmarshal message payload.")
return
}
if msg.Type == msg_pb.MessageType_COMMITTED {
recvMsg, err := consensus.ParseFBFTMessage(msg)
if err != nil {
utils.Logger().Error().Err(err).
Msg("[Explorer] onCommitted unable to parse msg")
return
}
aggSig, mask, err := node.Consensus.ReadSignatureBitmapPayload(
recvMsg.Payload, 0,
)
if err != nil {
utils.Logger().Error().Err(err).
Msg("[Explorer] readSignatureBitmapPayload failed")
return
}
// check has 2f+1 signatures
need := node.Consensus.Decider.TwoThirdsSignersCount()
if count := utils.CountOneBits(mask.Bitmap); count < need {
utils.Logger().Error().Int64("need", need).Int64("have", count).
Msg("[Explorer] not have enough signature")
return
}
blockNumHash := make([]byte, 8)
binary.LittleEndian.PutUint64(blockNumHash, recvMsg.BlockNum)
commitPayload := append(blockNumHash, recvMsg.BlockHash[:]...)
if !aggSig.VerifyHash(mask.AggregatePublic, commitPayload) {
utils.Logger().
Error().Err(err).
Uint64("msgBlock", recvMsg.BlockNum).
Msg("[Explorer] Failed to verify the multi signature for commit phase")
return
}
block := node.Consensus.FBFTLog.GetBlockByHash(recvMsg.BlockHash)
if block == nil {
utils.Logger().Info().
Uint64("msgBlock", recvMsg.BlockNum).
Msg("[Explorer] Haven't received the block before the committed msg")
node.Consensus.FBFTLog.AddMessage(recvMsg)
return
}
node.AddNewBlockForExplorer(block)
node.commitBlockForExplorer(block)
} else if msg.Type == msg_pb.MessageType_PREPARED {
recvMsg, err := consensus.ParseFBFTMessage(msg)
if err != nil {
utils.Logger().Error().Err(err).Msg("[Explorer] Unable to parse Prepared msg")
return
}
block := recvMsg.Block
blockObj := &types.Block{}
err = rlp.DecodeBytes(block, blockObj)
// Add the block into FBFT log.
node.Consensus.FBFTLog.AddBlock(blockObj)
// Try to search for MessageType_COMMITTED message from pbft log.
msgs := node.Consensus.FBFTLog.GetMessagesByTypeSeqHash(msg_pb.MessageType_COMMITTED, blockObj.NumberU64(), blockObj.Hash())
// If found, then add the new block into blockchain db.
if len(msgs) > 0 {
node.AddNewBlockForExplorer(blockObj)
node.commitBlockForExplorer(blockObj)
}
}
return
}
// AddNewBlockForExplorer add new block for explorer.
func (node *Node) AddNewBlockForExplorer(block *types.Block) {
utils.Logger().Debug().Uint64("blockHeight", block.NumberU64()).Msg("[Explorer] Adding new block for explorer node")
if _, err := node.Blockchain().InsertChain([]*types.Block{block}, true); err == nil {
if shard.Schedule.IsLastBlock(block.Number().Uint64()) {
node.Consensus.UpdateConsensusInformation()
}
// Clean up the blocks to avoid OOM.
node.Consensus.FBFTLog.DeleteBlockByNumber(block.NumberU64())
// Do dump all blocks from state syncing for explorer one time
// TODO: some blocks can be dumped before state syncing finished.
// And they would be dumped again here. Please fix it.
once.Do(func() {
utils.Logger().Info().Int64("starting height", int64(block.NumberU64())-1).
Msg("[Explorer] Populating explorer data from state synced blocks")
go func() {
for blockHeight := int64(block.NumberU64()) - 1; blockHeight >= 0; blockHeight-- {
explorer.GetStorageInstance(node.SelfPeer.IP, node.SelfPeer.Port, true).Dump(
node.Blockchain().GetBlockByNumber(uint64(blockHeight)), uint64(blockHeight))
}
}()
})
} else {
utils.Logger().Error().Err(err).Msg("[Explorer] Error when adding new block for explorer node")
}
}
// ExplorerMessageHandler passes received message in node_handler to explorer service.
func (node *Node) commitBlockForExplorer(block *types.Block) {
if block.ShardID() != node.NodeConfig.ShardID {
return
}
// Dump new block into level db.
utils.Logger().Info().Uint64("blockNum", block.NumberU64()).Msg("[Explorer] Committing block into explorer DB")
explorer.GetStorageInstance(node.SelfPeer.IP, node.SelfPeer.Port, true).Dump(block, block.NumberU64())
curNum := block.NumberU64()
if curNum-100 > 0 {
node.Consensus.FBFTLog.DeleteBlocksLessThan(curNum - 100)
node.Consensus.FBFTLog.DeleteMessagesLessThan(curNum - 100)
}
}
// GetTransactionsHistory returns list of transactions hashes of address.
func (node *Node) GetTransactionsHistory(address, txType, order string) ([]common.Hash, error) {
addressData := &explorer.Address{}
key := explorer.GetAddressKey(address)
bytes, err := explorer.GetStorageInstance(node.SelfPeer.IP, node.SelfPeer.Port, false).GetDB().Get([]byte(key))
if err != nil {
return make([]common.Hash, 0), nil
}
if err = rlp.DecodeBytes(bytes, &addressData); err != nil {
utils.Logger().Error().Err(err).Msg("[Explorer] Cannot convert address data from DB")
return nil, err
}
if order == "DESC" {
sort.Slice(addressData.TXs[:], func(i, j int) bool {
return addressData.TXs[i].Timestamp > addressData.TXs[j].Timestamp
})
} else {
sort.Slice(addressData.TXs[:], func(i, j int) bool {
return addressData.TXs[i].Timestamp < addressData.TXs[j].Timestamp
})
}
hashes := make([]common.Hash, 0)
for _, tx := range addressData.TXs {
if txType == "" || txType == "ALL" || txType == tx.Type {
hash := common.HexToHash(tx.ID)
hashes = append(hashes, hash)
}
}
return hashes, nil
}
// CommitCommittee commits committee with shard id and epoch to explorer service.
func (node *Node) CommitCommittee() {
events := make(chan core.ChainEvent)
node.Blockchain().SubscribeChainEvent(events)
for event := range events {
curBlock := event.Block
if curBlock == nil {
continue
}
state, err := node.Blockchain().ReadShardState(curBlock.Epoch())
if err != nil {
utils.Logger().Error().Err(err).Msg("[Explorer] Error reading shard state")
continue
}
for _, committee := range state {
if committee.ShardID == curBlock.ShardID() {
utils.Logger().Debug().Msg("[Explorer] Dumping committee")
err := explorer.GetStorageInstance(node.SelfPeer.IP, node.SelfPeer.Port, false).DumpCommittee(curBlock.ShardID(), curBlock.Epoch().Uint64(), committee)
if err != nil {
utils.Logger().Warn().Err(err).Msgf("[Explorer] Error dumping committee for block %d", curBlock.NumberU64())
}
}
}
}
}