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cometbft.go
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cometbft.go
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package cometbft_v37
import (
"fmt"
abciClient "github.com/KYVENetwork/cometbft/v37/abci/client"
abciTypes "github.com/KYVENetwork/cometbft/v37/abci/types"
cfg "github.com/KYVENetwork/cometbft/v37/config"
"github.com/KYVENetwork/cometbft/v37/crypto/ed25519"
"github.com/KYVENetwork/cometbft/v37/libs/json"
cmtos "github.com/KYVENetwork/cometbft/v37/libs/os"
nm "github.com/KYVENetwork/cometbft/v37/node"
"github.com/KYVENetwork/cometbft/v37/p2p"
cometP2P "github.com/KYVENetwork/cometbft/v37/p2p"
"github.com/KYVENetwork/cometbft/v37/privval"
tmProtoState "github.com/KYVENetwork/cometbft/v37/proto/cometbft/v37/state"
"github.com/KYVENetwork/cometbft/v37/proxy"
tmState "github.com/KYVENetwork/cometbft/v37/state"
tmStore "github.com/KYVENetwork/cometbft/v37/store"
tmTypes "github.com/KYVENetwork/cometbft/v37/types"
"github.com/KYVENetwork/ksync/types"
"github.com/KYVENetwork/ksync/utils"
db "github.com/cometbft/cometbft-db"
"net/url"
"os"
"strconv"
)
var (
cometLogger = CometLogger()
)
type Engine struct {
homePath string
config *cfg.Config
blockDB db.DB
blockStore *tmStore.BlockStore
stateDB db.DB
stateStore tmState.Store
state tmState.State
prevBlock *Block
proxyApp proxy.AppConns
blockExecutor *tmState.BlockExecutor
}
func (engine *Engine) GetName() string {
return utils.EngineCometBFTV37
}
func (engine *Engine) OpenDBs(homePath string) error {
engine.homePath = homePath
config, err := LoadConfig(engine.homePath)
if err != nil {
return fmt.Errorf("failed to load config.toml: %w", err)
}
engine.config = config
if err := utils.FormatGenesisFile(config.GenesisFile()); err != nil {
return fmt.Errorf("failed to format genesis file: %w", err)
}
blockDB, blockStore, err := GetBlockstoreDBs(config)
if err != nil {
return fmt.Errorf("failed to open blockDB: %w", err)
}
engine.blockDB = blockDB
engine.blockStore = blockStore
stateDB, stateStore, err := GetStateDBs(config)
if err != nil {
return fmt.Errorf("failed to open stateDB: %w", err)
}
engine.stateDB = stateDB
engine.stateStore = stateStore
return nil
}
func (engine *Engine) CloseDBs() error {
if err := engine.blockDB.Close(); err != nil {
return fmt.Errorf("failed to close blockDB: %w", err)
}
if err := engine.stateDB.Close(); err != nil {
return fmt.Errorf("failed to close stateDB: %w", err)
}
return nil
}
func (engine *Engine) GetHomePath() string {
return engine.homePath
}
func (engine *Engine) GetProxyAppAddress() string {
return engine.config.ProxyApp
}
func (engine *Engine) StartProxyApp() error {
if engine.proxyApp != nil {
return fmt.Errorf("proxy app already started")
}
proxyApp, err := CreateAndStartProxyAppConns(engine.config)
if err != nil {
return err
}
engine.proxyApp = proxyApp
return nil
}
func (engine *Engine) StopProxyApp() error {
if engine.proxyApp == nil {
return fmt.Errorf("proxy app already stopped")
}
if err := engine.proxyApp.Stop(); err != nil {
return err
}
engine.proxyApp = nil
return nil
}
func (engine *Engine) GetChainId() (string, error) {
defaultDocProvider := nm.DefaultGenesisDocProviderFunc(engine.config)
_, genDoc, err := nm.LoadStateFromDBOrGenesisDocProvider(engine.stateDB, defaultDocProvider)
if err != nil {
return "", fmt.Errorf("failed to load state and genDoc: %w", err)
}
return genDoc.ChainID, nil
}
func (engine *Engine) GetMetrics() ([]byte, error) {
latest := engine.blockStore.LoadBlock(engine.blockStore.Height())
earliest := engine.blockStore.LoadBlock(engine.blockStore.Base())
return json.Marshal(types.Metrics{
LatestBlockHash: latest.Header.Hash().String(),
LatestAppHash: latest.AppHash.String(),
LatestBlockHeight: latest.Height,
LatestBlockTime: latest.Time,
EarliestBlockHash: earliest.Hash().String(),
EarliestAppHash: earliest.AppHash.String(),
EarliestBlockHeight: earliest.Height,
EarliestBlockTime: earliest.Time,
CatchingUp: true,
})
}
func (engine *Engine) GetContinuationHeight() (int64, error) {
height := engine.blockStore.Height()
initialHeight, err := utils.GetInitialHeightFromGenesisFile(engine.GetGenesisPath())
if err != nil {
return 0, fmt.Errorf("failed to load initial height from genesis file: %w", err)
}
continuationHeight := height + 1
if continuationHeight < initialHeight {
continuationHeight = initialHeight
}
return continuationHeight, nil
}
func (engine *Engine) DoHandshake() error {
defaultDocProvider := nm.DefaultGenesisDocProviderFunc(engine.config)
state, genDoc, err := nm.LoadStateFromDBOrGenesisDocProvider(engine.stateDB, defaultDocProvider)
if err != nil {
return fmt.Errorf("failed to load state and genDoc: %w", err)
}
eventBus, err := CreateAndStartEventBus()
if err != nil {
return fmt.Errorf("failed to start event bus: %w", err)
}
if err := DoHandshake(engine.stateStore, state, engine.blockStore, genDoc, eventBus, engine.proxyApp); err != nil {
return fmt.Errorf("failed to do handshake: %w", err)
}
state, err = engine.stateStore.Load()
if err != nil {
return fmt.Errorf("failed to reload state: %w", err)
}
engine.state = state
mempool := CreateMempool(engine.config, engine.proxyApp, state)
_, evidencePool, err := CreateEvidenceReactor(engine.config, engine.stateStore, engine.blockStore)
if err != nil {
return fmt.Errorf("failed to create evidence reactor: %w", err)
}
engine.blockExecutor = tmState.NewBlockExecutor(
engine.stateStore,
cometLogger.With("module", "state"),
engine.proxyApp.Consensus(),
mempool,
evidencePool,
)
return nil
}
func (engine *Engine) ApplyBlock(runtime string, value []byte) error {
var block *Block
if runtime == utils.KSyncRuntimeTendermint {
var parsed TendermintValue
if err := json.Unmarshal(value, &parsed); err != nil {
return fmt.Errorf("failed to unmarshal value: %w", err)
}
block = parsed.Block.Block
} else if runtime == utils.KSyncRuntimeTendermintBsync {
if err := json.Unmarshal(value, &block); err != nil {
return fmt.Errorf("failed to unmarshal value: %w", err)
}
} else {
return fmt.Errorf("runtime %s unknown", runtime)
}
// if the previous block is not defined we continue
if engine.prevBlock == nil {
engine.prevBlock = block
return nil
}
// get block data
blockParts, err := engine.prevBlock.MakePartSet(tmTypes.BlockPartSizeBytes)
if err != nil {
return fmt.Errorf("failed make part set of block: %w", err)
}
blockId := tmTypes.BlockID{Hash: engine.prevBlock.Hash(), PartSetHeader: blockParts.Header()}
// verify block
if err := engine.blockExecutor.ValidateBlock(engine.state, engine.prevBlock); err != nil {
return fmt.Errorf("block validation failed at height %d: %w", engine.prevBlock.Height, err)
}
// verify commits
if err := engine.state.Validators.VerifyCommitLight(engine.state.ChainID, blockId, engine.prevBlock.Height, block.LastCommit); err != nil {
return fmt.Errorf("light commit verification failed at height %d: %w", engine.prevBlock.Height, err)
}
// store block
engine.blockStore.SaveBlock(engine.prevBlock, blockParts, block.LastCommit)
// execute block against app
state, _, err := engine.blockExecutor.ApplyBlock(engine.state, blockId, engine.prevBlock)
if err != nil {
return fmt.Errorf("failed to apply block at height %d: %w", engine.prevBlock.Height, err)
}
// update values for next round
engine.state = state
engine.prevBlock = block
return nil
}
func (engine *Engine) ApplyFirstBlockOverP2P(runtime string, value, nextValue []byte) error {
var block, nextBlock *Block
if runtime == utils.KSyncRuntimeTendermint {
var parsed, nextParsed TendermintValue
if err := json.Unmarshal(value, &parsed); err != nil {
return fmt.Errorf("failed to unmarshal value: %w", err)
}
if err := json.Unmarshal(nextValue, &nextParsed); err != nil {
return fmt.Errorf("failed to unmarshal next value: %w", err)
}
block = parsed.Block.Block
nextBlock = nextParsed.Block.Block
} else if runtime == utils.KSyncRuntimeTendermintBsync {
if err := json.Unmarshal(value, &block); err != nil {
return fmt.Errorf("failed to unmarshal value: %w", err)
}
if err := json.Unmarshal(nextValue, &nextBlock); err != nil {
return fmt.Errorf("failed to unmarshal next value: %w", err)
}
} else {
return fmt.Errorf("runtime %s unknown", runtime)
}
genDoc, err := nm.DefaultGenesisDocProviderFunc(engine.config)()
if err != nil {
return fmt.Errorf("failed to load state and genDoc: %w", err)
}
peerAddress := engine.config.P2P.ListenAddress
peerHost, err := url.Parse(peerAddress)
if err != nil {
return fmt.Errorf("invalid peer address: %w", err)
}
port, err := strconv.ParseInt(peerHost.Port(), 10, 64)
if err != nil {
return fmt.Errorf("invalid peer port: %w", err)
}
// this peer should listen to different port to avoid port collision
engine.config.P2P.ListenAddress = fmt.Sprintf("tcp://%s:%d", peerHost.Hostname(), port-1)
nodeKey, err := cometP2P.LoadNodeKey(engine.config.NodeKeyFile())
if err != nil {
return fmt.Errorf("failed to load node key file: %w", err)
}
// generate new node key for this peer
ksyncNodeKey := &cometP2P.NodeKey{
PrivKey: ed25519.GenPrivKey(),
}
nodeInfo, err := MakeNodeInfo(engine.config, ksyncNodeKey, genDoc)
transport := cometP2P.NewMultiplexTransport(nodeInfo, *ksyncNodeKey, cometP2P.MConnConfig(engine.config.P2P))
bcR := NewBlockchainReactor(block, nextBlock)
sw := CreateSwitch(engine.config, transport, bcR, nodeInfo, ksyncNodeKey, cometLogger)
// start the transport
addr, err := cometP2P.NewNetAddressString(cometP2P.IDAddressString(ksyncNodeKey.ID(), engine.config.P2P.ListenAddress))
if err != nil {
return fmt.Errorf("failed to start transport: %w", err)
}
if err := transport.Listen(*addr); err != nil {
return fmt.Errorf("failed to start transport: %w", err)
}
persistentPeers := make([]string, 0)
peerString := fmt.Sprintf("%s@%s:%s", nodeKey.ID(), peerHost.Hostname(), peerHost.Port())
persistentPeers = append(persistentPeers, peerString)
if err := sw.AddPersistentPeers(persistentPeers); err != nil {
return fmt.Errorf("could not add persistent peers: %w", err)
}
// start switch
if err := sw.Start(); err != nil {
return fmt.Errorf("failed to start switch: %w", err)
}
// get peer
peer, err := cometP2P.NewNetAddressString(peerString)
if err != nil {
return fmt.Errorf("invalid peer address: %w", err)
}
if err := sw.DialPeerWithAddress(peer); err != nil {
return fmt.Errorf("failed to dial peer: %w", err)
}
return nil
}
func (engine *Engine) GetGenesisPath() string {
return engine.config.GenesisFile()
}
func (engine *Engine) GetGenesisHeight() (int64, error) {
defaultDocProvider := nm.DefaultGenesisDocProviderFunc(engine.config)
genDoc, err := defaultDocProvider()
if err != nil {
return 0, err
}
return genDoc.InitialHeight, nil
}
func (engine *Engine) GetHeight() int64 {
return engine.blockStore.Height()
}
func (engine *Engine) GetBaseHeight() int64 {
return engine.blockStore.Base()
}
func (engine *Engine) GetAppHeight() (int64, error) {
socketClient := abciClient.NewSocketClient(engine.config.ProxyApp, false)
if err := socketClient.Start(); err != nil {
return 0, fmt.Errorf("failed to start socket client: %w", err)
}
info, err := socketClient.InfoSync(abciTypes.RequestInfo{})
if err != nil {
return 0, fmt.Errorf("failed to query info: %w", err)
}
if err := socketClient.Stop(); err != nil {
return 0, fmt.Errorf("failed to stop socket client: %w", err)
}
return info.LastBlockHeight, nil
}
func (engine *Engine) GetSnapshots() ([]byte, error) {
socketClient := abciClient.NewSocketClient(engine.config.ProxyApp, false)
if err := socketClient.Start(); err != nil {
return nil, fmt.Errorf("failed to start socket client: %w", err)
}
res, err := socketClient.ListSnapshotsSync(abciTypes.RequestListSnapshots{})
if err != nil {
return nil, fmt.Errorf("failed to list snapshots: %w", err)
}
if err := socketClient.Stop(); err != nil {
return nil, fmt.Errorf("failed to stop socket client: %w", err)
}
if len(res.Snapshots) == 0 {
return json.Marshal([]Snapshot{})
}
return json.Marshal(res.Snapshots)
}
func (engine *Engine) IsSnapshotAvailable(height int64) (bool, error) {
socketClient := abciClient.NewSocketClient(engine.config.ProxyApp, false)
if err := socketClient.Start(); err != nil {
return false, fmt.Errorf("failed to start socket client: %w", err)
}
res, err := socketClient.ListSnapshotsSync(abciTypes.RequestListSnapshots{})
if err != nil {
return false, fmt.Errorf("failed to list snapshots: %w", err)
}
if err := socketClient.Stop(); err != nil {
return false, fmt.Errorf("failed to stop socket client: %w", err)
}
for _, snapshot := range res.Snapshots {
if snapshot.Height == uint64(height) {
return true, nil
}
}
return false, nil
}
func (engine *Engine) GetSnapshotChunk(height, format, chunk int64) ([]byte, error) {
socketClient := abciClient.NewSocketClient(engine.config.ProxyApp, false)
if err := socketClient.Start(); err != nil {
return nil, fmt.Errorf("failed to start socket client: %w", err)
}
res, err := socketClient.LoadSnapshotChunkSync(abciTypes.RequestLoadSnapshotChunk{
Height: uint64(height),
Format: uint32(format),
Chunk: uint32(chunk),
})
if err != nil {
return nil, fmt.Errorf("failed to load snapshot chunk: %w", err)
}
if err := socketClient.Stop(); err != nil {
return nil, fmt.Errorf("failed to stop socket client: %w", err)
}
return json.Marshal(res.Chunk)
}
func (engine *Engine) GetBlock(height int64) ([]byte, error) {
block := engine.blockStore.LoadBlock(height)
return json.Marshal(block)
}
func (engine *Engine) GetState(height int64) ([]byte, error) {
initialHeight := height
if initialHeight == 0 {
initialHeight = 1
}
lastBlock := engine.blockStore.LoadBlock(height)
currentBlock := engine.blockStore.LoadBlock(height + 1)
nextBlock := engine.blockStore.LoadBlock(height + 2)
lastValidators, err := engine.stateStore.LoadValidators(height)
if err != nil {
return nil, fmt.Errorf("failed to load validators at height %d: %w", height, err)
}
currentValidators, err := engine.stateStore.LoadValidators(height + 1)
if err != nil {
return nil, fmt.Errorf("failed to load validators at height %d: %w", height+1, err)
}
nextValidators, err := engine.stateStore.LoadValidators(height + 2)
if err != nil {
return nil, fmt.Errorf("failed to load validators at height %d: %w", height+2, err)
}
consensusParams, err := engine.stateStore.LoadConsensusParams(height + 2)
if err != nil {
return nil, fmt.Errorf("failed to load consensus params at height %d: %w", height, err)
}
snapshotState := tmState.State{
Version: tmProtoState.Version{
Consensus: lastBlock.Version,
},
ChainID: lastBlock.ChainID,
InitialHeight: initialHeight,
LastBlockHeight: lastBlock.Height,
LastBlockID: currentBlock.LastBlockID,
LastBlockTime: lastBlock.Time,
NextValidators: nextValidators,
Validators: currentValidators,
LastValidators: lastValidators,
LastHeightValidatorsChanged: nextBlock.Height,
ConsensusParams: consensusParams,
LastHeightConsensusParamsChanged: currentBlock.Height,
LastResultsHash: currentBlock.LastResultsHash,
AppHash: currentBlock.AppHash,
}
return json.Marshal(snapshotState)
}
func (engine *Engine) GetSeenCommit(height int64) ([]byte, error) {
block := engine.blockStore.LoadBlock(height + 1)
return json.Marshal(block.LastCommit)
}
func (engine *Engine) OfferSnapshot(value []byte) (string, uint32, error) {
var bundle TendermintSsyncBundle
if err := json.Unmarshal(value, &bundle); err != nil {
return abciTypes.ResponseOfferSnapshot_UNKNOWN.String(), 0, fmt.Errorf("failed to unmarshal tendermint-ssync bundle: %w", err)
}
socketClient := abciClient.NewSocketClient(engine.config.ProxyApp, false)
if err := socketClient.Start(); err != nil {
return abciTypes.ResponseOfferSnapshot_UNKNOWN.String(), 0, fmt.Errorf("failed to start socket client: %w", err)
}
res, err := socketClient.OfferSnapshotSync(abciTypes.RequestOfferSnapshot{
Snapshot: bundle[0].Value.Snapshot,
AppHash: bundle[0].Value.State.AppHash,
})
if err != nil {
return abciTypes.ResponseOfferSnapshot_UNKNOWN.String(), 0, err
}
if err := socketClient.Stop(); err != nil {
return abciTypes.ResponseOfferSnapshot_UNKNOWN.String(), 0, fmt.Errorf("failed to stop socket client: %w", err)
}
return res.Result.String(), bundle[0].Value.Snapshot.Chunks, nil
}
func (engine *Engine) ApplySnapshotChunk(chunkIndex uint32, value []byte) (string, error) {
var bundle TendermintSsyncBundle
if err := json.Unmarshal(value, &bundle); err != nil {
return abciTypes.ResponseApplySnapshotChunk_UNKNOWN.String(), fmt.Errorf("failed to unmarshal tendermint-ssync bundle: %w", err)
}
nodeKey, err := p2p.LoadNodeKey(engine.config.NodeKeyFile())
if err != nil {
return abciTypes.ResponseApplySnapshotChunk_UNKNOWN.String(), fmt.Errorf("loading node key file failed: %w", err)
}
socketClient := abciClient.NewSocketClient(engine.config.ProxyApp, false)
if err := socketClient.Start(); err != nil {
return abciTypes.ResponseApplySnapshotChunk_UNKNOWN.String(), fmt.Errorf("failed to start socket client: %w", err)
}
res, err := socketClient.ApplySnapshotChunkSync(abciTypes.RequestApplySnapshotChunk{
Index: chunkIndex,
Chunk: bundle[0].Value.Chunk,
Sender: string(nodeKey.ID()),
})
if err != nil {
return abciTypes.ResponseApplySnapshotChunk_UNKNOWN.String(), err
}
if err := socketClient.Stop(); err != nil {
return abciTypes.ResponseApplySnapshotChunk_UNKNOWN.String(), fmt.Errorf("failed to stop socket client: %w", err)
}
return res.Result.String(), nil
}
func (engine *Engine) BootstrapState(value []byte) error {
var bundle TendermintSsyncBundle
if err := json.Unmarshal(value, &bundle); err != nil {
return fmt.Errorf("failed to unmarshal tendermint-ssync bundle: %w", err)
}
err := engine.stateStore.Bootstrap(*bundle[0].Value.State)
if err != nil {
return fmt.Errorf("failed to bootstrap state: %w", err)
}
err = engine.blockStore.SaveSeenCommit(bundle[0].Value.State.LastBlockHeight, bundle[0].Value.SeenCommit)
if err != nil {
return fmt.Errorf("failed to save seen commit: %w", err)
}
blockParts, err := bundle[0].Value.Block.MakePartSet(tmTypes.BlockPartSizeBytes)
if err != nil {
return fmt.Errorf("failed make part set of block: %w", err)
}
engine.blockStore.SaveBlock(bundle[0].Value.Block, blockParts, bundle[0].Value.SeenCommit)
return nil
}
func (engine *Engine) PruneBlocks(toHeight int64) error {
blocksPruned, err := engine.blockStore.PruneBlocks(toHeight)
if err != nil {
return fmt.Errorf("failed to prune blocks up to %d: %s", toHeight, err)
}
base := toHeight - int64(blocksPruned)
if toHeight > base {
if err := engine.stateStore.PruneStates(base, toHeight); err != nil {
return fmt.Errorf("failed to prune state up to %d: %s", toHeight, err)
}
}
return nil
}
func (engine *Engine) ResetAll(homePath string, keepAddrBook bool) error {
config, err := LoadConfig(homePath)
if err != nil {
return fmt.Errorf("failed to load config.toml: %w", err)
}
dbDir := config.DBDir()
addrBookFile := config.P2P.AddrBookFile()
privValKeyFile := config.PrivValidatorKeyFile()
privValStateFile := config.PrivValidatorStateFile()
if keepAddrBook {
cometLogger.Info("the address book remains intact")
} else {
if err := os.Remove(addrBookFile); err == nil {
cometLogger.Info("removed existing address book", "file", addrBookFile)
} else if !os.IsNotExist(err) {
return fmt.Errorf("error removing address book, file: %s, err: %w", addrBookFile, err)
}
}
if err := os.RemoveAll(dbDir); err == nil {
cometLogger.Info("removed all blockchain history", "dir", dbDir)
} else {
return fmt.Errorf("error removing all blockchain history, dir: %s, err: %w", dbDir, err)
}
if err := cmtos.EnsureDir(dbDir, 0700); err != nil {
return fmt.Errorf("unable to recreate dbDir, err: %w", err)
}
// recreate the dbDir since the privVal state needs to live there
if _, err := os.Stat(privValKeyFile); err == nil {
pv := privval.LoadFilePVEmptyState(privValKeyFile, privValStateFile)
pv.Reset()
cometLogger.Info(
"Reset private validator file to genesis state",
"keyFile", privValKeyFile,
"stateFile", privValStateFile,
)
} else {
pv := privval.GenFilePV(privValKeyFile, privValStateFile)
pv.Save()
cometLogger.Info(
"Generated private validator file",
"keyFile", privValKeyFile,
"stateFile", privValStateFile,
)
}
return nil
}