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StateDB store Idxs with TokenID at the db-key

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This commit is contained in:
arnaucube
2020-10-27 15:55:28 +01:00
parent d6d1a9c898
commit aaa71a6b11
5 changed files with 43 additions and 23 deletions
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2
db/statedb/statedb.go
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@@ -372,7 +372,7 @@ func (s *StateDB) CreateAccount(idx common.Idx, account *common.Account) (*merkl
return cpp, err
}
// store idx by EthAddr & BJJ
err = s.setIdxByEthAddrBJJ(idx, account.EthAddr, account.PublicKey)
err = s.setIdxByEthAddrBJJ(idx, account.EthAddr, account.PublicKey, account.TokenID)
return cpp, err
}

2
db/statedb/txprocessors.go
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@@ -378,7 +378,7 @@ func (s *StateDB) processL2Tx(coordIdxsMap map[common.TokenID]common.Idx, exitTr
// if tx.ToIdx==0, get toIdx by ToEthAddr or ToBJJ
if tx.ToIdx == common.Idx(0) && tx.AuxToIdx == common.Idx(0) {
// case when tx.Type== common.TxTypeTransferToEthAddr or common.TxTypeTransferToBJJ
tx.AuxToIdx, err = s.GetIdxByEthAddrBJJ(tx.ToEthAddr, tx.ToBJJ)
tx.AuxToIdx, err = s.GetIdxByEthAddrBJJ(tx.ToEthAddr, tx.ToBJJ, tx.TokenID)
if err != nil {
log.Error(err)
return nil, nil, false, err

2
db/statedb/txprocessors_test.go
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@@ -44,6 +44,8 @@ func TestProcessTxsSynchronizer(t *testing.T) {
// Idx of user 'A'
idxA1 := tc.Users["A"].Accounts[common.TokenID(1)].Idx
// Process the 1st batch, which contains the L1CoordinatorTxs necessary
// to create the Coordinator accounts to receive the fees
log.Debug("1st batch, 1st block, only L1CoordinatorTxs")
ptOut, err := sdb.ProcessTxs(nil, nil, blocks[0].Batches[0].L1CoordinatorTxs, nil)
require.Nil(t, err)

29
db/statedb/utils.go
View File

@@ -12,11 +12,18 @@ import (
"github.com/iden3/go-merkletree"
)
func concatEthAddrBJJ(addr ethCommon.Address, pk *babyjub.PublicKey) []byte {
func concatEthAddrTokenID(addr ethCommon.Address, tokenID common.TokenID) []byte {
var b []byte
b = append(b, addr.Bytes()...)
b = append(b[:], tokenID.Bytes()[:]...)
return b
}
func concatEthAddrBJJTokenID(addr ethCommon.Address, pk *babyjub.PublicKey, tokenID common.TokenID) []byte {
pkComp := pk.Compress()
var b []byte
b = append(b, addr.Bytes()...)
b = append(b[:], pkComp[:]...)
b = append(b[:], tokenID.Bytes()[:]...)
return b
}
@@ -25,8 +32,8 @@ func concatEthAddrBJJ(addr ethCommon.Address, pk *babyjub.PublicKey) []byte {
// - key: EthAddr & BabyJubJub PublicKey Compressed, value: idx
// If Idx already exist for the given EthAddr & BJJ, the remaining Idx will be
// always the smallest one.
func (s *StateDB) setIdxByEthAddrBJJ(idx common.Idx, addr ethCommon.Address, pk *babyjub.PublicKey) error {
oldIdx, err := s.GetIdxByEthAddrBJJ(addr, pk)
func (s *StateDB) setIdxByEthAddrBJJ(idx common.Idx, addr ethCommon.Address, pk *babyjub.PublicKey, tokenID common.TokenID) error {
oldIdx, err := s.GetIdxByEthAddrBJJ(addr, pk, tokenID)
if err == nil {
// EthAddr & BJJ already have an Idx
// check which Idx is smaller
@@ -46,7 +53,7 @@ func (s *StateDB) setIdxByEthAddrBJJ(idx common.Idx, addr ethCommon.Address, pk
if err != nil {
return err
}
k := concatEthAddrBJJ(addr, pk)
k := concatEthAddrBJJTokenID(addr, pk, tokenID)
// store Addr&BJJ-idx
idxBytes, err := idx.Bytes()
if err != nil {
@@ -57,7 +64,8 @@ func (s *StateDB) setIdxByEthAddrBJJ(idx common.Idx, addr ethCommon.Address, pk
return err
}
// store Addr-idx
err = tx.Put(append(PrefixKeyAddr, addr.Bytes()...), idxBytes[:])
k = concatEthAddrTokenID(addr, tokenID)
err = tx.Put(append(PrefixKeyAddr, k...), idxBytes[:])
if err != nil {
return err
}
@@ -71,8 +79,9 @@ func (s *StateDB) setIdxByEthAddrBJJ(idx common.Idx, addr ethCommon.Address, pk
// GetIdxByEthAddr returns the smallest Idx in the StateDB for the given
// Ethereum Address. Will return common.Idx(0) and error in case that Idx is
// not found in the StateDB.
func (s *StateDB) GetIdxByEthAddr(addr ethCommon.Address) (common.Idx, error) {
b, err := s.db.Get(append(PrefixKeyAddr, addr.Bytes()...))
func (s *StateDB) GetIdxByEthAddr(addr ethCommon.Address, tokenID common.TokenID) (common.Idx, error) {
k := concatEthAddrTokenID(addr, tokenID)
b, err := s.db.Get(append(PrefixKeyAddr, k...))
if err != nil {
return common.Idx(0), ErrToIdxNotFound
}
@@ -88,13 +97,13 @@ func (s *StateDB) GetIdxByEthAddr(addr ethCommon.Address) (common.Idx, error) {
// address, it's ignored in the query. If `pk` is nil, it's ignored in the
// query. Will return common.Idx(0) and error in case that Idx is not found in
// the StateDB.
func (s *StateDB) GetIdxByEthAddrBJJ(addr ethCommon.Address, pk *babyjub.PublicKey) (common.Idx, error) {
func (s *StateDB) GetIdxByEthAddrBJJ(addr ethCommon.Address, pk *babyjub.PublicKey, tokenID common.TokenID) (common.Idx, error) {
if !bytes.Equal(addr.Bytes(), common.EmptyAddr.Bytes()) && pk == nil {
// case ToEthAddr!=0 && ToBJJ=0
return s.GetIdxByEthAddr(addr)
return s.GetIdxByEthAddr(addr, tokenID)
} else if !bytes.Equal(addr.Bytes(), common.EmptyAddr.Bytes()) && pk != nil {
// case ToEthAddr!=0 && ToBJJ!=0
k := concatEthAddrBJJ(addr, pk)
k := concatEthAddrBJJTokenID(addr, pk, tokenID)
b, err := s.db.Get(append(PrefixKeyAddrBJJ, k...))
if err != nil {
return common.Idx(0), ErrToIdxNotFound

31
db/statedb/utils_test.go
View File

@@ -33,51 +33,60 @@ func TestGetIdx(t *testing.T) {
idx2 := common.Idx(12345)
idx3 := common.Idx(1233)
tokenID0 := common.TokenID(0)
tokenID1 := common.TokenID(1)
// store the keys for idx by Addr & BJJ
err = sdb.setIdxByEthAddrBJJ(idx, addr, pk)
err = sdb.setIdxByEthAddrBJJ(idx, addr, pk, tokenID0)
require.Nil(t, err)
idxR, err := sdb.GetIdxByEthAddrBJJ(addr, pk)
idxR, err := sdb.GetIdxByEthAddrBJJ(addr, pk, tokenID0)
assert.Nil(t, err)
assert.Equal(t, idx, idxR)
// expect error when getting only by EthAddr, as value does not exist
// in the db for only EthAddr
_, err = sdb.GetIdxByEthAddr(addr)
_, err = sdb.GetIdxByEthAddr(addr, tokenID0)
assert.Nil(t, err)
_, err = sdb.GetIdxByEthAddr(addr2)
_, err = sdb.GetIdxByEthAddr(addr2, tokenID0)
assert.NotNil(t, err)
// expect error when getting by EthAddr and BJJ, but for another TokenID
_, err = sdb.GetIdxByEthAddrBJJ(addr, pk, tokenID1)
assert.NotNil(t, err)
// expect to fail
idxR, err = sdb.GetIdxByEthAddrBJJ(addr2, pk)
idxR, err = sdb.GetIdxByEthAddrBJJ(addr2, pk, tokenID0)
assert.NotNil(t, err)
assert.Equal(t, common.Idx(0), idxR)
idxR, err = sdb.GetIdxByEthAddrBJJ(addr, pk2)
idxR, err = sdb.GetIdxByEthAddrBJJ(addr, pk2, tokenID0)
assert.NotNil(t, err)
assert.Equal(t, common.Idx(0), idxR)
// try to store bigger idx, will not affect as already exist a smaller
// Idx for that Addr & BJJ
err = sdb.setIdxByEthAddrBJJ(idx2, addr, pk)
err = sdb.setIdxByEthAddrBJJ(idx2, addr, pk, tokenID0)
assert.Nil(t, err)
// store smaller idx
err = sdb.setIdxByEthAddrBJJ(idx3, addr, pk)
err = sdb.setIdxByEthAddrBJJ(idx3, addr, pk, tokenID0)
assert.Nil(t, err)
idxR, err = sdb.GetIdxByEthAddrBJJ(addr, pk)
idxR, err = sdb.GetIdxByEthAddrBJJ(addr, pk, tokenID0)
assert.Nil(t, err)
assert.Equal(t, idx3, idxR)
// by EthAddr should work
idxR, err = sdb.GetIdxByEthAddr(addr)
idxR, err = sdb.GetIdxByEthAddr(addr, tokenID0)
assert.Nil(t, err)
assert.Equal(t, idx3, idxR)
// expect error when trying to get Idx by addr2 & pk2
idxR, err = sdb.GetIdxByEthAddrBJJ(addr2, pk2)
idxR, err = sdb.GetIdxByEthAddrBJJ(addr2, pk2, tokenID0)
assert.NotNil(t, err)
assert.Equal(t, ErrToIdxNotFound, err)
assert.Equal(t, common.Idx(0), idxR)
// expect error when trying to get Idx by addr with not used TokenID
_, err = sdb.GetIdxByEthAddr(addr, tokenID1)
assert.NotNil(t, err)
}
func TestBJJCompressedTo256BigInt(t *testing.T) {