core: store NEP-11 transfers, add accessor functions

internal/fakechain/fakechain.go

@@ -276,13 +276,23 @@ func (chain *FakeChain) GetNextBlockValidators() ([]*keys.PublicKey, error) {
 	panic("TODO")
 }
 
+// GetNEP17Contracts implements Blockchainer interface.
+func (chain *FakeChain) GetNEP11Contracts() []util.Uint160 {
+	panic("TODO")
+}
+
 // GetNEP17Contracts implements Blockchainer interface.
 func (chain *FakeChain) GetNEP17Contracts() []util.Uint160 {
 	panic("TODO")
 }
 
 // GetNEP17LastUpdated implements Blockchainer interface.
-func (chain *FakeChain) GetNEP17LastUpdated(acc util.Uint160) (map[int32]uint32, error) {
+func (chain *FakeChain) GetTokenLastUpdated(acc util.Uint160) (map[int32]uint32, error) {
+	panic("TODO")
+}
+
+// ForEachNEP17Transfer implements Blockchainer interface.
+func (chain *FakeChain) ForEachNEP11Transfer(util.Uint160, func(*state.NEP11Transfer) (bool, error)) error {
 	panic("TODO")
 }
 

pkg/core/blockchain.go

@@ -45,7 +45,7 @@ import (
 // Tuning parameters.
 const (
 	headerBatchCount = 2000
-	version          = "0.1.4"
+	version          = "0.1.5"
 
 	defaultInitialGAS                      = 52000000_00000000
 	defaultMemPoolSize                     = 50000
@@ -195,7 +195,8 @@ type bcEvent struct {
 // transferData is used for transfer caching during storeBlock.
 type transferData struct {
 	Info  state.TokenTransferInfo
-	Log  state.TokenTransferLog
+	Log11 state.TokenTransferLog
+	Log17 state.TokenTransferLog
 }
 
 // NewBlockchain returns a new blockchain object the will use the
@@ -1009,7 +1010,12 @@ func (bc *Blockchain) storeBlock(block *block.Block, txpool *mempool.Pool) error
 				aerdone <- err
 				return
 			}
-			err = kvcache.PutTokenTransferLog(acc, trData.Info.NextNEP17Batch, &trData.Log)
+			err = kvcache.PutTokenTransferLog(acc, trData.Info.NextNEP11Batch, true, &trData.Log11)
+			if err != nil {
+				aerdone <- err
+				return
+			}
+			err = kvcache.PutTokenTransferLog(acc, trData.Info.NextNEP17Batch, false, &trData.Log17)
 			if err != nil {
 				aerdone <- err
 				return
@@ -1246,7 +1252,7 @@ func (bc *Blockchain) handleNotification(note *state.NotificationEvent, d dao.DA
 		return
 	}
 	arr, ok := note.Item.Value().([]stackitem.Item)
-	if !ok || len(arr) != 3 {
+	if !ok || !(len(arr) == 3 || len(arr) == 4) {
 		return
 	}
 	from, err := parseUint160(arr[0])
@@ -1261,7 +1267,14 @@ func (bc *Blockchain) handleNotification(note *state.NotificationEvent, d dao.DA
 	if err != nil {
 		return
 	}
-	bc.processNEP17Transfer(d, transCache, h, b, note.ScriptHash, from, to, amount)
+	var id []byte
+	if len(arr) == 4 {
+		id, err = arr[3].TryBytes()
+		if err != nil || len(id) > storage.MaxStorageKeyLen {
+			return
+		}
+	}
+	bc.processTokenTransfer(d, transCache, h, b, note.ScriptHash, from, to, amount, id)
 }
 
 func parseUint160(itm stackitem.Item) (util.Uint160, error) {
@@ -1276,8 +1289,9 @@ func parseUint160(itm stackitem.Item) (util.Uint160, error) {
 	return util.Uint160DecodeBytesBE(bytes)
 }
 
-func (bc *Blockchain) processNEP17Transfer(cache dao.DAO, transCache map[util.Uint160]transferData,
+func (bc *Blockchain) processTokenTransfer(cache dao.DAO, transCache map[util.Uint160]transferData,
-	h util.Uint256, b *block.Block, sc util.Uint160, from util.Uint160, to util.Uint160, amount *big.Int) {
+	h util.Uint256, b *block.Block, sc util.Uint160, from util.Uint160, to util.Uint160,
+	amount *big.Int, tokenID []byte) {
 	var id int32
 	nativeContract := bc.contracts.ByHash(sc)
 	if nativeContract != nil {
@@ -1289,7 +1303,11 @@ func (bc *Blockchain) processNEP17Transfer(cache dao.DAO, transCache map[util.Ui
 		}
 		id = assetContract.ID
 	}
-	transfer := &state.NEP17Transfer{
+	var transfer io.Serializable
+	var nep17xfer *state.NEP17Transfer
+	var isNEP11 = (tokenID != nil)
+	if !isNEP11 {
+		nep17xfer = &state.NEP17Transfer{
 			Asset:     id,
 			From:      from,
 			To:        to,
@@ -1297,47 +1315,85 @@ func (bc *Blockchain) processNEP17Transfer(cache dao.DAO, transCache map[util.Ui
 			Timestamp: b.Timestamp,
 			Tx:        h,
 		}
+		transfer = nep17xfer
+	} else {
+		nep11xfer := &state.NEP11Transfer{
+			NEP17Transfer: state.NEP17Transfer{
+				Asset:     id,
+				From:      from,
+				To:        to,
+				Block:     b.Index,
+				Timestamp: b.Timestamp,
+				Tx:        h,
+			},
+			ID: tokenID,
+		}
+		transfer = nep11xfer
+		nep17xfer = &nep11xfer.NEP17Transfer
+	}
 	if !from.Equals(util.Uint160{}) {
-		_ = transfer.Amount.Neg(amount) // We already have the Int.
+		_ = nep17xfer.Amount.Neg(amount) // We already have the Int.
-		if appendNEP17Transfer(cache, transCache, from, transfer) != nil {
+		if appendTokenTransfer(cache, transCache, from, transfer, id, b.Index, isNEP11) != nil {
 			return
 		}
 	}
 	if !to.Equals(util.Uint160{}) {
-		_ = transfer.Amount.Set(amount)                          // We already have the Int.
+		_ = nep17xfer.Amount.Set(amount)                                               // We already have the Int.
-		_ = appendNEP17Transfer(cache, transCache, to, transfer) // Nothing useful we can do.
+		_ = appendTokenTransfer(cache, transCache, to, transfer, id, b.Index, isNEP11) // Nothing useful we can do.
 	}
 }
 
-func appendNEP17Transfer(cache dao.DAO, transCache map[util.Uint160]transferData, addr util.Uint160, transfer *state.NEP17Transfer) error {
+func appendTokenTransfer(cache dao.DAO, transCache map[util.Uint160]transferData, addr util.Uint160, transfer io.Serializable,
+	token int32, bIndex uint32, isNEP11 bool) error {
 	transferData, ok := transCache[addr]
 	if !ok {
 		balances, err := cache.GetTokenTransferInfo(addr)
 		if err != nil {
 			return err
 		}
-		if !balances.NewNEP17Batch {
+		if !balances.NewNEP11Batch {
-			trLog, err := cache.GetTokenTransferLog(addr, balances.NextNEP17Batch)
+			trLog, err := cache.GetTokenTransferLog(addr, balances.NextNEP11Batch, true)
 			if err != nil {
 				return err
 			}
-			transferData.Log = *trLog
+			transferData.Log11 = *trLog
+		}
+		if !balances.NewNEP17Batch {
+			trLog, err := cache.GetTokenTransferLog(addr, balances.NextNEP17Batch, false)
+			if err != nil {
+				return err
+			}
+			transferData.Log17 = *trLog
 		}
 		transferData.Info = *balances
 	}
-	err := transferData.Log.Append(transfer)
+	var (
+		log       *state.TokenTransferLog
+		newBatch  *bool
+		nextBatch *uint32
+	)
+	if !isNEP11 {
+		log = &transferData.Log17
+		newBatch = &transferData.Info.NewNEP17Batch
+		nextBatch = &transferData.Info.NextNEP17Batch
+	} else {
+		log = &transferData.Log11
+		newBatch = &transferData.Info.NewNEP11Batch
+		nextBatch = &transferData.Info.NextNEP11Batch
+	}
+	err := log.Append(transfer)
 	if err != nil {
 		return err
 	}
-	transferData.Info.LastUpdated[transfer.Asset] = transfer.Block
+	transferData.Info.LastUpdated[token] = bIndex
-	transferData.Info.NewNEP17Batch = transferData.Log.Size() >= state.TokenTransferBatchSize
+	*newBatch = log.Size() >= state.TokenTransferBatchSize
-	if transferData.Info.NewNEP17Batch {
+	if *newBatch {
-		err = cache.PutTokenTransferLog(addr, transferData.Info.NextNEP17Batch, &transferData.Log)
+		err = cache.PutTokenTransferLog(addr, *nextBatch, isNEP11, log)
 		if err != nil {
 			return err
 		}
-		transferData.Info.NextNEP17Batch++
+		*nextBatch++
-		transferData.Log = state.TokenTransferLog{}
+		*log = state.TokenTransferLog{}
 	}
 	transCache[addr] = transferData
 	return nil
@@ -1350,7 +1406,7 @@ func (bc *Blockchain) ForEachNEP17Transfer(acc util.Uint160, f func(*state.NEP17
 		return nil
 	}
 	for i := int(balances.NextNEP17Batch); i >= 0; i-- {
-		lg, err := bc.dao.GetTokenTransferLog(acc, uint32(i))
+		lg, err := bc.dao.GetTokenTransferLog(acc, uint32(i), false)
 		if err != nil {
 			return nil
 		}
@@ -1365,15 +1421,42 @@ func (bc *Blockchain) ForEachNEP17Transfer(acc util.Uint160, f func(*state.NEP17
 	return nil
 }
 
+// ForEachNEP11Transfer executes f for each nep11 transfer in log.
+func (bc *Blockchain) ForEachNEP11Transfer(acc util.Uint160, f func(*state.NEP11Transfer) (bool, error)) error {
+	balances, err := bc.dao.GetTokenTransferInfo(acc)
+	if err != nil {
+		return nil
+	}
+	for i := int(balances.NextNEP11Batch); i >= 0; i-- {
+		lg, err := bc.dao.GetTokenTransferLog(acc, uint32(i), true)
+		if err != nil {
+			return nil
+		}
+		cont, err := lg.ForEachNEP11(f)
+		if err != nil {
+			return err
+		}
+		if !cont {
+			break
+		}
+	}
+	return nil
+}
+
 // GetNEP17Contracts returns the list of deployed NEP17 contracts.
 func (bc *Blockchain) GetNEP17Contracts() []util.Uint160 {
 	return bc.contracts.Management.GetNEP17Contracts()
 }
 
-// GetNEP17LastUpdated returns a set of contract ids with the corresponding last updated
+// GetNEP11Contracts returns the list of deployed NEP11 contracts.
+func (bc *Blockchain) GetNEP11Contracts() []util.Uint160 {
+	return bc.contracts.Management.GetNEP11Contracts()
+}
+
+// GetTokenLastUpdated returns a set of contract ids with the corresponding last updated
 // block indexes. In case of an empty account, latest stored state synchronisation point
 // is returned under Math.MinInt32 key.
-func (bc *Blockchain) GetNEP17LastUpdated(acc util.Uint160) (map[int32]uint32, error) {
+func (bc *Blockchain) GetTokenLastUpdated(acc util.Uint160) (map[int32]uint32, error) {
 	info, err := bc.dao.GetTokenTransferInfo(acc)
 	if err != nil {
 		return nil, err

pkg/core/blockchainer/blockchainer.go

@@ -34,6 +34,7 @@ type Blockchainer interface {
 	GetContractScriptHash(id int32) (util.Uint160, error)
 	GetEnrollments() ([]state.Validator, error)
 	GetGoverningTokenBalance(acc util.Uint160) (*big.Int, uint32)
+	ForEachNEP11Transfer(util.Uint160, func(*state.NEP11Transfer) (bool, error)) error
 	ForEachNEP17Transfer(util.Uint160, func(*state.NEP17Transfer) (bool, error)) error
 	GetHeaderHash(int) util.Uint256
 	GetHeader(hash util.Uint256) (*block.Header, error)
@@ -47,8 +48,9 @@ type Blockchainer interface {
 	GetNativeContractScriptHash(string) (util.Uint160, error)
 	GetNatives() []state.NativeContract
 	GetNextBlockValidators() ([]*keys.PublicKey, error)
+	GetNEP11Contracts() []util.Uint160
 	GetNEP17Contracts() []util.Uint160
-	GetNEP17LastUpdated(acc util.Uint160) (map[int32]uint32, error)
+	GetTokenLastUpdated(acc util.Uint160) (map[int32]uint32, error)
 	GetNotaryContractScriptHash() util.Uint160
 	GetNotaryBalance(acc util.Uint160) *big.Int
 	GetPolicer() Policer

pkg/core/dao/dao.go

@@ -43,7 +43,7 @@ type DAO interface {
 	GetCurrentHeaderHeight() (i uint32, h util.Uint256, err error)
 	GetHeaderHashes() ([]util.Uint256, error)
 	GetTokenTransferInfo(acc util.Uint160) (*state.TokenTransferInfo, error)
-	GetTokenTransferLog(acc util.Uint160, index uint32) (*state.TokenTransferLog, error)
+	GetTokenTransferLog(acc util.Uint160, index uint32, isNEP11 bool) (*state.TokenTransferLog, error)
 	GetStateSyncPoint() (uint32, error)
 	GetStateSyncCurrentBlockHeight() (uint32, error)
 	GetStorageItem(id int32, key []byte) state.StorageItem
@@ -58,7 +58,7 @@ type DAO interface {
 	PutContractID(id int32, hash util.Uint160) error
 	PutCurrentHeader(hashAndIndex []byte) error
 	PutTokenTransferInfo(acc util.Uint160, bs *state.TokenTransferInfo) error
-	PutTokenTransferLog(acc util.Uint160, index uint32, lg *state.TokenTransferLog) error
+	PutTokenTransferLog(acc util.Uint160, index uint32, isNEP11 bool, lg *state.TokenTransferLog) error
 	PutStateSyncPoint(p uint32) error
 	PutStateSyncCurrentBlockHeight(h uint32) error
 	PutStorageItem(id int32, key []byte, si state.StorageItem) error
@@ -176,17 +176,21 @@ func (dao *Simple) putTokenTransferInfo(acc util.Uint160, bs *state.TokenTransfe
 
 // -- start transfer log.
 
-func getTokenTransferLogKey(acc util.Uint160, index uint32) []byte {
+func getTokenTransferLogKey(acc util.Uint160, index uint32, isNEP11 bool) []byte {
 	key := make([]byte, 1+util.Uint160Size+4)
+	if isNEP11 {
+		key[0] = byte(storage.STNEP11Transfers)
+	} else {
 		key[0] = byte(storage.STNEP17Transfers)
+	}
 	copy(key[1:], acc.BytesBE())
 	binary.LittleEndian.PutUint32(key[util.Uint160Size:], index)
 	return key
 }
 
 // GetTokenTransferLog retrieves transfer log from the cache.
-func (dao *Simple) GetTokenTransferLog(acc util.Uint160, index uint32) (*state.TokenTransferLog, error) {
+func (dao *Simple) GetTokenTransferLog(acc util.Uint160, index uint32, isNEP11 bool) (*state.TokenTransferLog, error) {
-	key := getTokenTransferLogKey(acc, index)
+	key := getTokenTransferLogKey(acc, index, isNEP11)
 	value, err := dao.Store.Get(key)
 	if err != nil {
 		if err == storage.ErrKeyNotFound {
@@ -198,8 +202,8 @@ func (dao *Simple) GetTokenTransferLog(acc util.Uint160, index uint32) (*state.T
 }
 
 // PutTokenTransferLog saves given transfer log in the cache.
-func (dao *Simple) PutTokenTransferLog(acc util.Uint160, index uint32, lg *state.TokenTransferLog) error {
+func (dao *Simple) PutTokenTransferLog(acc util.Uint160, index uint32, isNEP11 bool, lg *state.TokenTransferLog) error {
-	key := getTokenTransferLogKey(acc, index)
+	key := getTokenTransferLogKey(acc, index, isNEP11)
 	return dao.Store.Put(key, lg.Raw)
 }
 

pkg/core/native_gas_test.go

@@ -15,7 +15,7 @@ func TestGAS_Roundtrip(t *testing.T) {
 	bc := newTestChain(t)
 
 	getUtilityTokenBalance := func(bc *Blockchain, acc util.Uint160) (*big.Int, uint32) {
-		lub, err := bc.GetNEP17LastUpdated(acc)
+		lub, err := bc.GetTokenLastUpdated(acc)
 		require.NoError(t, err)
 		return bc.GetUtilityTokenBalance(acc), lub[bc.contracts.GAS.ID]
 	}

pkg/core/storage/store.go

@@ -20,8 +20,9 @@ const (
 	// STStorage prefix. Once state exchange process is completed, all items with
 	// STStorage prefix will be replaced with STTempStorage-prefixed ones.
 	STTempStorage                  KeyPrefix = 0x71
-	STNEP17Transfers               KeyPrefix = 0x72
+	STNEP11Transfers               KeyPrefix = 0x72
-	STNEP17TransferInfo            KeyPrefix = 0x73
+	STNEP17Transfers               KeyPrefix = 0x73
+	STTokenTransferInfo            KeyPrefix = 0x74
 	IXHeaderHashList               KeyPrefix = 0x80
 	SYSCurrentBlock                KeyPrefix = 0xc0
 	SYSCurrentHeader               KeyPrefix = 0xc1

pkg/rpc/server/server.go

@@ -661,7 +661,7 @@ func (s *Server) getNEP17Balances(ps request.Params) (interface{}, *response.Err
 		Address:  address.Uint160ToString(u),
 		Balances: []result.NEP17Balance{},
 	}
-	lastUpdated, err := s.chain.GetNEP17LastUpdated(u)
+	lastUpdated, err := s.chain.GetTokenLastUpdated(u)
 	if err != nil {
 		return nil, response.NewRPCError("Failed to get NEP17 last updated block", err.Error(), err)
 	}