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consensus: build MerkleRoot from hashes on block creation

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Use transaction hashes for merkle root calculation as transactions
itself can not yet be available.
This commit is contained in:
Evgenii Stratonikov 2020-06-25 11:16:42 +03:00
parent 3e3781168d
commit 8407031605
1 changed files with 11 additions and 1 deletions
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12
pkg/consensus/consensus.go
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@ -13,6 +13,7 @@ import (
coreb "github.com/nspcc-dev/neo-go/pkg/core/block"
"github.com/nspcc-dev/neo-go/pkg/core/blockchainer"
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"github.com/nspcc-dev/neo-go/pkg/crypto/hash"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/io"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
@ -478,6 +479,15 @@ func (s *service) newBlockFromContext(ctx *dbft.Context) block.Block {
primaryIndex := uint32(ctx.PrimaryIndex)
block.Block.ConsensusData.PrimaryIndex = primaryIndex
block.Block.RebuildMerkleRoot()
hashes := make([]util.Uint256, len(ctx.TransactionHashes)+1)
hashes[0] = block.Block.ConsensusData.Hash()
copy(hashes[1:], ctx.TransactionHashes)
mt, err := hash.NewMerkleTree(hashes)
if err != nil {
s.log.Fatal("can't calculate merkle root for the new block")
return nil
}
block.Block.MerkleRoot = mt.Root()
return block
}