package protocol
import (
- "encoding/json"
-
log "github.com/sirupsen/logrus"
- "github.com/vapor/common"
- "github.com/vapor/consensus"
- engine "github.com/vapor/consensus/consensus"
- dpos "github.com/vapor/consensus/consensus/dpos"
+ "github.com/vapor/config"
"github.com/vapor/errors"
+ "github.com/vapor/event"
"github.com/vapor/protocol/bc"
"github.com/vapor/protocol/bc/types"
"github.com/vapor/protocol/state"
"github.com/vapor/protocol/validation"
- "github.com/vapor/protocol/vm"
- "github.com/vapor/protocol/vm/vmutil"
)
var (
// BlockExist check is a block in chain or orphan
func (c *Chain) BlockExist(hash *bc.Hash) bool {
- return c.index.BlockExist(hash) || c.orphanManage.BlockExist(hash)
+ if _, err := c.store.GetBlockHeader(hash); err == nil {
+ return true
+ }
+ return c.orphanManage.BlockExist(hash)
}
// GetBlockByHash return a block by given hash
return c.store.GetBlock(hash)
}
-// GetBlockByHeight return a block header by given height
+// GetBlockByHeight return a block by given height
func (c *Chain) GetBlockByHeight(height uint64) (*types.Block, error) {
- node := c.index.NodeByHeight(height)
- if node == nil {
- return nil, errors.New("can't find block in given height")
+ hash, err := c.store.GetMainChainHash(height)
+ if err != nil {
+ return nil, errors.Wrap(err, "can't find block in given height")
}
- return c.store.GetBlock(&node.Hash)
+ return c.store.GetBlock(hash)
}
// GetHeaderByHash return a block header by given hash
func (c *Chain) GetHeaderByHash(hash *bc.Hash) (*types.BlockHeader, error) {
- node := c.index.GetNode(hash)
- if node == nil {
- return nil, errors.New("can't find block header in given hash")
- }
- return node.BlockHeader(), nil
+ return c.store.GetBlockHeader(hash)
}
// GetHeaderByHeight return a block header by given height
func (c *Chain) GetHeaderByHeight(height uint64) (*types.BlockHeader, error) {
- node := c.index.NodeByHeight(height)
- if node == nil {
- return nil, errors.New("can't find block header in given height")
+ hash, err := c.store.GetMainChainHash(height)
+ if err != nil {
+ return nil, errors.Wrap(err, "can't find block header in given height")
}
- return node.BlockHeader(), nil
+ return c.store.GetBlockHeader(hash)
}
-func (c *Chain) calcReorganizeNodes(node *state.BlockNode) ([]*state.BlockNode, []*state.BlockNode) {
- var attachNodes []*state.BlockNode
- var detachNodes []*state.BlockNode
+func (c *Chain) calcReorganizeChain(beginAttach *types.BlockHeader, beginDetach *types.BlockHeader) ([]*types.BlockHeader, []*types.BlockHeader, error) {
+ var err error
+ var attachBlockHeaders []*types.BlockHeader
+ var detachBlockHeaders []*types.BlockHeader
- attachNode := node
- for c.index.NodeByHeight(attachNode.Height) != attachNode {
- attachNodes = append([]*state.BlockNode{attachNode}, attachNodes...)
- attachNode = attachNode.Parent
- }
+ for attachBlockHeader, detachBlockHeader := beginAttach, beginDetach; detachBlockHeader.Hash() != attachBlockHeader.Hash(); {
+ var attachRollback, detachRollBack bool
+ if attachRollback = attachBlockHeader.Height >= detachBlockHeader.Height; attachRollback {
+ attachBlockHeaders = append([]*types.BlockHeader{attachBlockHeader}, attachBlockHeaders...)
+ }
+
+ if detachRollBack = attachBlockHeader.Height <= detachBlockHeader.Height; detachRollBack {
+ detachBlockHeaders = append(detachBlockHeaders, detachBlockHeader)
+ }
+
+ if attachRollback {
+ attachBlockHeader, err = c.store.GetBlockHeader(&attachBlockHeader.PreviousBlockHash)
+ if err != nil {
+ return nil, nil, err
+ }
+ }
- detachNode := c.bestNode
- for detachNode != attachNode {
- detachNodes = append(detachNodes, detachNode)
- detachNode = detachNode.Parent
+ if detachRollBack {
+ detachBlockHeader, err = c.store.GetBlockHeader(&detachBlockHeader.PreviousBlockHash)
+ if err != nil {
+ return nil, nil, err
+ }
+ }
}
- return attachNodes, detachNodes
+ return attachBlockHeaders, detachBlockHeaders, nil
}
func (c *Chain) connectBlock(block *types.Block) (err error) {
if err := utxoView.ApplyBlock(bcBlock, bcBlock.TransactionStatus); err != nil {
return err
}
- node := c.index.GetNode(&bcBlock.ID)
- if err := c.setState(node, utxoView); err != nil {
+
+ consensusResult, err := c.getBestConsensusResult()
+ if err != nil {
+ return err
+ }
+ if err := consensusResult.ApplyBlock(block); err != nil {
return err
}
+
+ irrBlockHeader := c.lastIrrBlockHeader
+ if c.isIrreversible(&block.BlockHeader) && block.Height > irrBlockHeader.Height {
+ irrBlockHeader = &block.BlockHeader
+ }
+
+ if err := c.setState(&block.BlockHeader, irrBlockHeader, []*types.BlockHeader{&block.BlockHeader}, utxoView, []*state.ConsensusResult{consensusResult}); err != nil {
+ return err
+ }
+
for _, tx := range block.Transactions {
- for key, value := range tx.Entries {
- switch value.(type) {
- case *bc.Claim:
- c.store.SetWithdrawSpent(&key)
- default:
- continue
- }
- }
c.txPool.RemoveTransaction(&tx.Tx.ID)
}
return nil
}
-func (c *Chain) reorganizeChain(node *state.BlockNode) error {
- attachNodes, detachNodes := c.calcReorganizeNodes(node)
+func (c *Chain) reorganizeChain(blockHeader *types.BlockHeader) error {
+ attachBlockHeaders, detachBlockHeaders, err := c.calcReorganizeChain(blockHeader, c.bestBlockHeader)
+ if err != nil {
+ return err
+ }
+
utxoView := state.NewUtxoViewpoint()
+ consensusResults := []*state.ConsensusResult{}
+ consensusResult, err := c.getBestConsensusResult()
+ if err != nil {
+ return err
+ }
- for _, detachNode := range detachNodes {
- b, err := c.store.GetBlock(&detachNode.Hash)
+ txsToRestore := map[bc.Hash]*types.Tx{}
+ for _, detachBlockHeader := range detachBlockHeaders {
+ detachHash := detachBlockHeader.Hash()
+ b, err := c.store.GetBlock(&detachHash)
if err != nil {
return err
}
if err := c.store.GetTransactionsUtxo(utxoView, detachBlock.Transactions); err != nil {
return err
}
+
txStatus, err := c.GetTransactionStatus(&detachBlock.ID)
if err != nil {
return err
}
+
if err := utxoView.DetachBlock(detachBlock, txStatus); err != nil {
return err
}
- log.WithFields(log.Fields{"height": node.Height, "hash": node.Hash.String()}).Debug("detach from mainchain")
+ if err := consensusResult.DetachBlock(b); err != nil {
+ return err
+ }
+
+ for _, tx := range b.Transactions {
+ txsToRestore[tx.ID] = tx
+ }
+
+ blockHash := blockHeader.Hash()
+ log.WithFields(log.Fields{"module": logModule, "height": blockHeader.Height, "hash": blockHash.String()}).Debug("detach from mainchain")
}
- for _, attachNode := range attachNodes {
- b, err := c.store.GetBlock(&attachNode.Hash)
+ txsToRemove := map[bc.Hash]*types.Tx{}
+ irrBlockHeader := c.lastIrrBlockHeader
+ for _, attachBlockHeader := range attachBlockHeaders {
+ attachHash := attachBlockHeader.Hash()
+ b, err := c.store.GetBlock(&attachHash)
if err != nil {
return err
}
if err := c.store.GetTransactionsUtxo(utxoView, attachBlock.Transactions); err != nil {
return err
}
+
txStatus, err := c.GetTransactionStatus(&attachBlock.ID)
if err != nil {
return err
}
+
if err := utxoView.ApplyBlock(attachBlock, txStatus); err != nil {
return err
}
- log.WithFields(log.Fields{"height": node.Height, "hash": node.Hash.String()}).Debug("attach from mainchain")
+ if err := consensusResult.ApplyBlock(b); err != nil {
+ return err
+ }
+
+ if consensusResult.IsFinalize() {
+ consensusResults = append(consensusResults, consensusResult.Fork())
+ }
+
+ if c.isIrreversible(attachBlockHeader) && attachBlockHeader.Height > irrBlockHeader.Height {
+ irrBlockHeader = attachBlockHeader
+ }
+
+ for _, tx := range b.Transactions {
+ if _, ok := txsToRestore[tx.ID]; !ok {
+ txsToRemove[tx.ID] = tx
+ } else {
+ delete(txsToRestore, tx.ID)
+ }
+ }
+
+ blockHash := blockHeader.Hash()
+ log.WithFields(log.Fields{"module": logModule, "height": blockHeader.Height, "hash": blockHash.String()}).Debug("attach from mainchain")
}
- return c.setState(node, utxoView)
-}
+ if len(detachBlockHeaders) > 0 &&
+ detachBlockHeaders[len(detachBlockHeaders)-1].Height <= c.lastIrrBlockHeader.Height &&
+ irrBlockHeader.Height <= c.lastIrrBlockHeader.Height {
+ return errors.New("rollback block below the height of irreversible block")
+ }
-func (c *Chain) consensusCheck(block *types.Block) error {
- if err := dpos.GDpos.CheckBlockHeader(block.BlockHeader); err != nil {
+ consensusResults = append(consensusResults, consensusResult.Fork())
+ if err := c.setState(blockHeader, irrBlockHeader, attachBlockHeaders, utxoView, consensusResults); err != nil {
return err
}
- if err := dpos.GDpos.IsValidBlockCheckIrreversibleBlock(block.Height, block.Hash()); err != nil {
- return err
+ for txHash := range txsToRemove {
+ c.txPool.RemoveTransaction(&txHash)
}
- if err := dpos.GDpos.CheckBlock(*block, true); err != nil {
- return err
+ for _, tx := range txsToRestore {
+ // the number of restored Tx should be very small or most of time ZERO
+ // Error returned from validation is ignored, tx could still be lost if validation fails.
+ // TODO: adjust tx timestamp so that it won't starve in pool.
+ if _, err := c.validateTx(tx, blockHeader); err != nil {
+ log.WithFields(log.Fields{"module": logModule, "tx_id": tx.Tx.ID.String(), "error": err}).Info("restore tx fail")
+ }
+ }
+
+ if len(txsToRestore) > 0 {
+ log.WithFields(log.Fields{"module": logModule, "num": len(txsToRestore)}).Debug("restore txs back to pool")
}
return nil
}
// SaveBlock will validate and save block into storage
func (c *Chain) saveBlock(block *types.Block) error {
- bcBlock := types.MapBlock(block)
- parent := c.index.GetNode(&block.PreviousBlockHash)
+ if err := c.validateSign(block); err != nil {
+ return errors.Sub(ErrBadBlock, err)
+ }
- if err := c.consensusCheck(block); err != nil {
+ parent, err := c.store.GetBlockHeader(&block.PreviousBlockHash)
+ if err != nil {
return err
}
- if err := validation.ValidateBlock(bcBlock, parent, block); err != nil {
- return errors.Sub(ErrBadBlock, err)
+ consensusResult, err := c.GetConsensusResultByHash(&block.PreviousBlockHash)
+ if err != nil {
+ return err
}
- if err := c.ProcessDPoSConnectBlock(block); err != nil {
+ rewards, err := consensusResult.GetCoinbaseRewards(parent.Height)
+ if err != nil {
return err
}
- if err := c.store.SaveBlock(block, bcBlock.TransactionStatus); err != nil {
- return err
+ bcBlock := types.MapBlock(block)
+ if err := validation.ValidateBlock(bcBlock, parent, rewards); err != nil {
+ return errors.Sub(ErrBadBlock, err)
}
- c.orphanManage.Delete(&bcBlock.ID)
- node, err := state.NewBlockNode(&block.BlockHeader, parent)
+ signature, err := c.SignBlock(block)
if err != nil {
+ return errors.Sub(ErrBadBlock, err)
+ }
+
+ if err := c.store.SaveBlock(block, bcBlock.TransactionStatus); err != nil {
return err
}
+ c.orphanManage.Delete(&bcBlock.ID)
- c.index.AddNode(node)
+ if len(signature) != 0 {
+ xPub := config.CommonConfig.PrivateKey().XPub()
+ if err := c.eventDispatcher.Post(event.BlockSignatureEvent{BlockHash: block.Hash(), Signature: signature, XPub: xPub[:]}); err != nil {
+ return err
+ }
+ }
return nil
}
for _, prevOrphan := range prevOrphans {
orphanBlock, ok := c.orphanManage.Get(prevOrphan)
if !ok {
- log.WithFields(log.Fields{"hash": prevOrphan.String()}).Warning("saveSubBlock fail to get block from orphanManage")
+ log.WithFields(log.Fields{"module": logModule, "hash": prevOrphan.String()}).Warning("saveSubBlock fail to get block from orphanManage")
continue
}
if err := c.saveBlock(orphanBlock); err != nil {
- log.WithFields(log.Fields{"hash": prevOrphan.String(), "height": orphanBlock.Height}).Warning("saveSubBlock fail to save block")
+ log.WithFields(log.Fields{"module": logModule, "hash": prevOrphan.String(), "height": orphanBlock.Height}).Warning("saveSubBlock fail to save block")
continue
}
func (c *Chain) processBlock(block *types.Block) (bool, error) {
blockHash := block.Hash()
if c.BlockExist(&blockHash) {
- log.WithFields(log.Fields{"hash": blockHash.String(), "height": block.Height}).Info("block has been processed")
+ log.WithFields(log.Fields{"module": logModule, "hash": blockHash.String(), "height": block.Height}).Debug("block has been processed")
return c.orphanManage.BlockExist(&blockHash), nil
}
- if parent := c.index.GetNode(&block.PreviousBlockHash); parent == nil {
+ c.markTransactions(block.Transactions...)
+
+ if _, err := c.store.GetBlockHeader(&block.PreviousBlockHash); err != nil {
c.orphanManage.Add(block)
return true, nil
}
}
bestBlock := c.saveSubBlock(block)
- bestBlockHash := bestBlock.Hash()
- bestNode := c.index.GetNode(&bestBlockHash)
+ bestBlockHeader := &bestBlock.BlockHeader
- if bestNode.Parent == c.bestNode {
- log.Debug("append block to the end of mainchain")
+ c.cond.L.Lock()
+ defer c.cond.L.Unlock()
+ if bestBlockHeader.PreviousBlockHash == c.bestBlockHeader.Hash() {
+ log.WithFields(log.Fields{"module": logModule}).Debug("append block to the end of mainchain")
return false, c.connectBlock(bestBlock)
}
- if bestNode.Height > c.bestNode.Height {
- log.Debug("start to reorganize chain")
- return false, c.reorganizeChain(bestNode)
+ if bestBlockHeader.Height > c.bestBlockHeader.Height {
+ log.WithFields(log.Fields{"module": logModule}).Debug("start to reorganize chain")
+ return false, c.reorganizeChain(bestBlockHeader)
}
return false, nil
}
-
-func (c *Chain) ProcessDPoSConnectBlock(block *types.Block) error {
- mapTxFee := c.CalculateBalance(block, true)
- if err := c.DoVoting(block, mapTxFee); err != nil {
- return err
- }
- return nil
-}
-
-func (c *Chain) DoVoting(block *types.Block, mapTxFee map[bc.Hash]uint64) error {
- for _, tx := range block.Transactions {
- to := tx.Outputs[0]
- msg := &dpos.DposMsg{}
-
- if err := json.Unmarshal(tx.TxData.ReferenceData, &msg); err != nil {
- continue
- }
- var (
- address common.Address
- err error
- )
- address, err = common.NewAddressWitnessPubKeyHash(to.ControlProgram[2:], &consensus.ActiveNetParams)
- if err != nil {
- address, err = common.NewAddressWitnessScriptHash(to.ControlProgram[2:], &consensus.ActiveNetParams)
- if err != nil {
- return errors.New("ControlProgram cannot be converted to address")
- }
- }
- hash := block.Hash()
- height := block.Height
- switch msg.Type {
- case vm.OP_DELEGATE:
- continue
- case vm.OP_REGISTE:
- if mapTxFee[tx.Tx.ID] >= consensus.RegisrerForgerFee {
- data := &dpos.RegisterForgerData{}
- if err := json.Unmarshal(msg.Data, data); err != nil {
- return err
- }
- c.Engine.ProcessRegister(address.EncodeAddress(), data.Name, hash, height)
- }
- case vm.OP_VOTE:
- if mapTxFee[tx.Tx.ID] >= consensus.VoteForgerFee {
- data := &dpos.VoteForgerData{}
- if err := json.Unmarshal(msg.Data, data); err != nil {
- return err
- }
- c.Engine.ProcessVote(address.EncodeAddress(), data.Forgers, hash, height)
- }
- case vm.OP_REVOKE:
- if mapTxFee[tx.Tx.ID] >= consensus.CancelVoteForgerFee {
- data := &dpos.CancelVoteForgerData{}
- if err := json.Unmarshal(msg.Data, data); err != nil {
- return err
- }
- c.Engine.ProcessCancelVote(address.EncodeAddress(), data.Forgers, hash, height)
- }
- }
- }
- return nil
-}
-
-func (c *Chain) CalculateBalance(block *types.Block, fIsAdd bool) map[bc.Hash]uint64 {
-
- addressBalances := []engine.AddressBalance{}
- mapTxFee := make(map[bc.Hash]uint64)
- var (
- address common.Address
- err error
- )
-
- for _, tx := range block.Transactions {
- fee := uint64(0)
- for _, input := range tx.Inputs {
- if input.AssetID() != *consensus.BTMAssetID {
- continue
- }
-
- if len(tx.TxData.Inputs) == 1 &&
- (tx.TxData.Inputs[0].InputType() == types.CoinbaseInputType ||
- tx.TxData.Inputs[0].InputType() == types.ClainPeginInputType) {
- continue
- }
-
- fee += input.Amount()
- value := int64(input.Amount())
- address, err = common.NewAddressWitnessPubKeyHash(input.ControlProgram()[2:], &consensus.ActiveNetParams)
- if err != nil {
- address, err = common.NewAddressWitnessScriptHash(input.ControlProgram()[2:], &consensus.ActiveNetParams)
- if err != nil {
- continue
- }
- }
- if fIsAdd {
- value = 0 - value
- }
- addressBalances = append(addressBalances, engine.AddressBalance{address.EncodeAddress(), value})
- }
- for _, output := range tx.Outputs {
- fee -= output.Amount
- if vmutil.IsUnspendable(output.ControlProgram) {
- continue
- }
- if *output.AssetId != *consensus.BTMAssetID {
- continue
- }
- value := int64(output.Amount)
- address, err = common.NewAddressWitnessPubKeyHash(output.ControlProgram[2:], &consensus.ActiveNetParams)
- if err != nil {
- address, err = common.NewAddressWitnessScriptHash(output.ControlProgram[2:], &consensus.ActiveNetParams)
- if err != nil {
- continue
- }
- }
- if !fIsAdd {
- value = 0 - value
- }
- addressBalances = append(addressBalances, engine.AddressBalance{address.EncodeAddress(), value})
- }
- mapTxFee[tx.Tx.ID] = fee
- }
-
- c.Engine.UpdateAddressBalance(addressBalances)
- return mapTxFee
-}
-
-func (c *Chain) RepairDPoSData(oldBlockHeight uint64, oldBlockHash bc.Hash) error {
- block, err := c.GetBlockByHash(&oldBlockHash)
- if err != nil {
- return err
- }
- if block.Height != oldBlockHeight {
- return errors.New("The module vote records data with a problem")
- }
- for i := block.Height + 1; i <= c.bestNode.Height; i++ {
- b, err := c.GetBlockByHeight(i)
- if err != nil {
- return err
- }
- if err := c.ProcessDPoSConnectBlock(b); err != nil {
- return err
- }
-
- }
- return nil
-}
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