Add StateUpdate payload

support store a value use Namespace and key as index.

Signed-off-by: zhengq1 <[email protected]>

account/client.go

@@ -563,3 +563,20 @@ func GetBookKeepers() []*crypto.PubKey {
 
 	return pubKeys
 }
+
+func GetStateUpdater() []*crypto.PubKey {
+	var pubKeys = []*crypto.PubKey{}
+	for _, key := range config.Parameters.StateUpdater {
+		pubKey := []byte(key)
+		pubKey, err := hex.DecodeString(key)
+		// TODO Convert the key string to byte
+		k, err := crypto.DecodePoint(pubKey)
+		if err != nil {
+			log.Error("Incorrectly book keepers key")
+			return nil
+		}
+		pubKeys = append(pubKeys, k)
+	}
+
+	return pubKeys
+}

common/config/config.go

@@ -19,6 +19,7 @@ type Configuration struct {
 	Version          int      `json:"Version"`
 	SeedList         []string `json:"SeedList"`
 	BookKeepers      []string `json:"BookKeepers"` // The default book keepers' publickey
+	StateUpdater     []string `json:"StateUpdater"`
 	HttpRestPort     int      `json:"HttpRestPort"`
 	RestCertPath     string   `json:"RestCertPath"`
 	RestKeyPath      string   `json:"RestKeyPath"`

core/ledger/blockchain.go

@@ -23,7 +23,7 @@ func NewBlockchain(height uint32) *Blockchain {
 	}
 }
 
-func NewBlockchainWithGenesisBlock( defaultBookKeeper []*crypto.PubKey ) (*Blockchain, error) {
+func NewBlockchainWithGenesisBlock(defaultBookKeeper []*crypto.PubKey, defaultStateUpdater []*crypto.PubKey) (*Blockchain, error) {
 	genesisBlock, err := GenesisBlockInit()
 	if err != nil {
 		return nil, NewDetailErr(err, ErrNoCode, "[Blockchain], NewBlockchainWithGenesisBlock failed.")
@@ -32,7 +32,7 @@ func NewBlockchainWithGenesisBlock( defaultBookKeeper []*crypto.PubKey ) (*Block
 	hashx := genesisBlock.Hash()
 	genesisBlock.hash = &hashx
 
-	height, err := DefaultLedger.Store.InitLedgerStoreWithGenesisBlock( genesisBlock, defaultBookKeeper )
+	height, err := DefaultLedger.Store.InitLedgerStoreWithGenesisBlock(genesisBlock, defaultBookKeeper, defaultStateUpdater)
 	if err != nil {
 		return nil, NewDetailErr(err, ErrNoCode, "[Blockchain], InitLevelDBStoreWithGenesisBlock failed.")
 	}

core/ledger/ledger.go

@@ -13,6 +13,7 @@ import (
 
 var DefaultLedger *Ledger
 var StandbyBookKeepers []*crypto.PubKey
+var StateUpdater []*crypto.PubKey
 
 // Ledger - the struct for onchainDNA ledger
 type Ledger struct {
@@ -26,6 +27,10 @@ func (l *Ledger) IsDoubleSpend(Tx *tx.Transaction) bool {
 	return DefaultLedger.Store.IsDoubleSpend(Tx)
 }
 
+func (l *Ledger) IsStateUpdaterVaild(Tx *tx.Transaction) bool {
+	return DefaultLedger.Store.IsStateUpdaterVaild(Tx)
+}
+
 //Get the DefaultLedger.
 //Note: the later version will support the mutiLedger.So this func mybe expired later.
 func GetDefaultLedger() (*Ledger, error) {

core/ledger/ledgerStore.go

@@ -36,7 +36,7 @@ type ILedgerStore interface {
 	GetHeaderHashByHeight(height uint32) Uint256
 
 	GetBookKeeperList() ([]*crypto.PubKey, []*crypto.PubKey, error)
-	InitLedgerStoreWithGenesisBlock(genesisblock *Block, defaultBookKeeper []*crypto.PubKey) (uint32, error)
+	InitLedgerStoreWithGenesisBlock(genesisblock *Block, defaultBookKeeper []*crypto.PubKey, defaultStateUpdater []*crypto.PubKey) (uint32, error)
 
 	GetQuantityIssued(assetid Uint256) (Fixed64, error)
 
@@ -45,4 +45,8 @@ type ILedgerStore interface {
 	GetUnspentFromProgramHash(programHash Uint160, assetid Uint256) ([]*tx.UTXOUnspent, error)
 
 	IsTxHashDuplicate(txhash Uint256) bool
+
+	GetStateUpdater() ([]*crypto.PubKey, error)
+	GetState(namespace []byte, key []byte) ([]byte, error)
+	IsStateUpdaterVaild(Tx *tx.Transaction) bool
 }

core/store/ChainStore/ChainStore.go

@@ -76,7 +76,7 @@ func NewChainStore(file string) (*ChainStore, error) {
 	}, nil
 }
 
-func (bd *ChainStore) InitLedgerStoreWithGenesisBlock(genesisBlock *Block, defaultBookKeeper []*crypto.PubKey) (uint32, error) {
+func (bd *ChainStore) InitLedgerStoreWithGenesisBlock(genesisBlock *Block, defaultBookKeeper []*crypto.PubKey, defaultStateUpdater []*crypto.PubKey) (uint32, error) {
 
 	hash := genesisBlock.Hash()
 	bd.headerIndex[0] = hash
@@ -230,6 +230,24 @@ func (bd *ChainStore) InitLedgerStoreWithGenesisBlock(genesisBlock *Block, defau
 		bd.st.Put(bkListKey.Bytes(), bkListValue.Bytes())
 		///////////////////////////////////////////////////
 
+		///////////////////////////////////////////////////
+		// process defaultStateUpdater
+		///////////////////////////////////////////////////
+		// StateUpdater key
+		suKey := bytes.NewBuffer(nil)
+		suKey.WriteByte(byte(CA_StateUpdater))
+
+		// StateUpdater value
+		suValue := bytes.NewBuffer(nil)
+		serialization.WriteVarUint(suValue, uint64(len(defaultStateUpdater)))
+		for k := 0; k < len(defaultStateUpdater); k++ {
+			defaultStateUpdater[k].Serialize(suValue)
+		}
+
+		// StateUpdater put value
+		bd.st.Put(suKey.Bytes(), suValue.Bytes())
+		///////////////////////////////////////////////////
+
 		// persist genesis block
 		bd.persist(genesisBlock)
 
@@ -652,6 +670,35 @@ func (self *ChainStore) GetBookKeeperList() ([]*crypto.PubKey, []*crypto.PubKey,
 	return currBookKeeper, nextBookKeeper, nil
 }
 
+func (self *ChainStore) GetStateUpdater() ([]*crypto.PubKey, error) {
+	prefix := []byte{byte(CA_StateUpdater)}
+	suValue, err_get := self.st.Get(prefix)
+	if err_get != nil {
+		return nil, err_get
+	}
+
+	r := bytes.NewReader(suValue)
+
+	// read length
+	count, err := serialization.ReadVarUint(r, 0)
+	if err != nil {
+		return nil, err
+	}
+
+	var stateUpdater = make([]*crypto.PubKey, count)
+	for i := uint64(0); i < count; i++ {
+		bk := new(crypto.PubKey)
+		err := bk.DeSerialize(r)
+		if err != nil {
+			return nil, err
+		}
+
+		stateUpdater[i] = bk
+	}
+
+	return stateUpdater, nil
+}
+
 func (bd *ChainStore) persist(b *Block) error {
 	utxoUnspents := make(map[Uint160]map[Uint256][]*tx.UTXOUnspent)
 	unspents := make(map[Uint256][]uint16)
@@ -738,6 +785,7 @@ func (bd *ChainStore) persist(b *Block) error {
 			b.Transactions[i].TxType == tx.IssueAsset ||
 			b.Transactions[i].TxType == tx.TransferAsset ||
 			b.Transactions[i].TxType == tx.Record ||
+			b.Transactions[i].TxType == tx.StateUpdate ||
 			b.Transactions[i].TxType == tx.BookKeeper ||
 			b.Transactions[i].TxType == tx.PrivacyPayload ||
 			b.Transactions[i].TxType == tx.BookKeeping ||
@@ -766,6 +814,43 @@ func (bd *ChainStore) persist(b *Block) error {
 			}
 		}
 
+		if b.Transactions[i].TxType == tx.StateUpdate {
+			su := b.Transactions[i].Payload.(*payload.StateUpdate)
+
+			// stateKey
+			stateKey := bytes.NewBuffer(nil)
+			stateKey.WriteByte(byte(ST_STATES))
+			serialization.WriteVarBytes(stateKey, su.Namespace)
+			serialization.WriteVarBytes(stateKey, su.Key)
+
+			// verify tx signer public is in StateUpdater list.
+			log.Tracef("StateUpdate tx publickey: %x", su.Updater)
+
+			stateUpdater, err := bd.GetStateUpdater()
+			if err != nil {
+				return err
+			}
+
+			findflag := false
+			for k := 0; k < len(stateUpdater); k++ {
+				log.Tracef("StateUpdate updaterPublickey %d: %x %x", k, stateUpdater[k].X, stateUpdater[k].Y)
+
+				if su.Updater.X.Cmp(stateUpdater[k].X) == 0 && su.Updater.Y.Cmp(stateUpdater[k].Y) == 0 {
+					findflag = true
+					break
+				}
+			}
+
+			if !findflag {
+				return errors.New(fmt.Sprintf("[persist] stateUpdater publickey not found in store, reject. tx publickey: %x", su.Updater))
+			}
+
+			// if not found in store, put value to the key.
+			// if found in store, rewrite value.
+			log.Tracef("[persist] StateUpdate modify, key: %x, value:%x", stateKey, su.Value)
+			bd.st.BatchPut(stateKey.Bytes(), su.Value)
+		}
+
 		for index := 0; index < len(b.Transactions[i].Outputs); index++ {
 			output := b.Transactions[i].Outputs[index]
 			programHash := output.ProgramHash
@@ -1279,6 +1364,47 @@ func (bd *ChainStore) GetAccount(programHash Uint160) (*account.AccountState, er
 	return accountState, nil
 }
 
+func (bd *ChainStore) IsStateUpdaterVaild(Tx *tx.Transaction) bool {
+	su := Tx.Payload.(*payload.StateUpdate)
+
+	stateUpdater, err := bd.GetStateUpdater()
+	if err != nil {
+		return false
+	}
+
+	findflag := false
+	for k := 0; k < len(stateUpdater); k++ {
+		log.Tracef("StateUpdate updaterPublickey %d: %x %x", k, stateUpdater[k].X, stateUpdater[k].Y)
+
+		if su.Updater.X.Cmp(stateUpdater[k].X) == 0 && su.Updater.Y.Cmp(stateUpdater[k].Y) == 0 {
+			findflag = true
+			break
+		}
+	}
+
+	if !findflag {
+		return false
+	}
+
+	return true
+}
+
+func (bd *ChainStore) GetState(namespace []byte, key []byte) ([]byte, error) {
+
+	// stateKey
+	stateKey := bytes.NewBuffer(nil)
+	stateKey.WriteByte(byte(ST_STATES))
+	serialization.WriteVarBytes(stateKey, namespace)
+	serialization.WriteVarBytes(stateKey, key)
+
+	stateValue, err := bd.st.Get(stateKey.Bytes())
+	if err != nil {
+		return nil, err
+	}
+
+	return stateValue, nil
+}
+
 func (bd *ChainStore) GetUnspentFromProgramHash(programHash Uint160, assetid Uint256) ([]*tx.UTXOUnspent, error) {
 
 	prefix := []byte{byte(IX_Unspent_UTXO)}

core/store/ChainStore/DataEntryPrefix.go

@@ -22,11 +22,17 @@ const (
 	ST_QuantityIssued DataEntryPrefix = 0xc1
 	ST_ACCOUNT        DataEntryPrefix = 0xc2
 
+	// STATES
+	ST_STATES DataEntryPrefix = 0xd0
+
 	//SYSTEM
 	SYS_CurrentBlock      DataEntryPrefix = 0x40
 	SYS_CurrentHeader     DataEntryPrefix = 0x41
 	SYS_CurrentBookKeeper DataEntryPrefix = 0x42
 
+	// CA
+	CA_StateUpdater DataEntryPrefix = 0x50
+
 	//CONFIG
 	CFG_Version DataEntryPrefix = 0xf0
 )

core/transaction/payload/StateUpdate.go

@@ -0,0 +1,68 @@
+package payload
+
+import (
+	"DNA/common/serialization"
+	"DNA/crypto"
+	. "DNA/errors"
+	"errors"
+	"io"
+)
+
+type StateUpdate struct {
+	Namespace []byte
+	Key       []byte
+	Value     []byte
+	Updater   *crypto.PubKey
+}
+
+func (su *StateUpdate) Data() []byte {
+	return []byte{0}
+}
+
+func (su *StateUpdate) Serialize(w io.Writer) error {
+	err := serialization.WriteVarBytes(w, su.Namespace)
+	if err != nil {
+		return NewDetailErr(err, ErrNoCode, "[StateUpdate], Namespace serialize failed.")
+	}
+
+	err = serialization.WriteVarBytes(w, su.Key)
+	if err != nil {
+		return NewDetailErr(err, ErrNoCode, "[StateUpdate], key serialize failed.")
+	}
+
+	err = serialization.WriteVarBytes(w, su.Value)
+	if err != nil {
+		return NewDetailErr(err, ErrNoCode, "[StateUpdate], value serialize failed.")
+	}
+
+	su.Updater.Serialize(w)
+
+	return nil
+}
+
+func (su *StateUpdate) Deserialize(r io.Reader) error {
+	var err error
+
+	su.Namespace, err = serialization.ReadVarBytes(r)
+	if err != nil {
+		return NewDetailErr(errors.New("[StateUpdate], Namespace deserialize failed."), ErrNoCode, "")
+	}
+
+	su.Key, err = serialization.ReadVarBytes(r)
+	if err != nil {
+		return NewDetailErr(errors.New("[StateUpdate], key deserialize failed."), ErrNoCode, "")
+	}
+
+	su.Value, err = serialization.ReadVarBytes(r)
+	if err != nil {
+		return NewDetailErr(errors.New("[StateUpdate], value deserialize failed."), ErrNoCode, "")
+	}
+
+	su.Updater = new(crypto.PubKey)
+	err = su.Updater.DeSerialize(r)
+	if err != nil {
+		return NewDetailErr(err, ErrNoCode, "[StateUpdate], updater Deserialize failed.")
+	}
+
+	return nil
+}

core/transaction/transaction.go

@@ -28,6 +28,7 @@ const (
 	RegisterAsset  TransactionType = 0x40
 	TransferAsset  TransactionType = 0x80
 	Record         TransactionType = 0x81
+	StateUpdate    TransactionType = 0x90
 	DeployCode     TransactionType = 0xd0
 	DataFile       TransactionType = 0x12
 )
@@ -200,6 +201,8 @@ func (tx *Transaction) DeserializeUnsignedWithoutType(r io.Reader) error {
 		tx.Payload = new(payload.PrivacyPayload)
 	case DataFile:
 		tx.Payload = new(payload.DataFile)
+	case StateUpdate:
+		tx.Payload = new(payload.StateUpdate)
 	default:
 		return errors.New("[Transaction],invalide transaction type.")
 	}
@@ -340,6 +343,18 @@ func (tx *Transaction) GetProgramHashes() ([]Uint160, error) {
 			return nil, NewDetailErr(err, ErrNoCode, "[Transaction], GetProgramHashes ToCodeHash failed.")
 		}
 		hashs = append(hashs, astHash)
+	case StateUpdate:
+		updater := tx.Payload.(*payload.StateUpdate).Updater
+		signatureRedeemScript, err := contract.CreateSignatureRedeemScript(updater)
+		if err != nil {
+			return nil, NewDetailErr(err, ErrNoCode, "[Transaction], StateUpdate GetProgramHashes CreateSignatureRedeemScript failed.")
+		}
+
+		astHash, err := ToCodeHash(signatureRedeemScript)
+		if err != nil {
+			return nil, NewDetailErr(err, ErrNoCode, "[Transaction], StateUpdate GetProgramHashes ToCodeHash failed.")
+		}
+		hashs = append(hashs, astHash)
 	default:
 	}
 	//remove dupilicated hashes