go-ethereum/eth/bor_api_backend.go
2025-06-03 15:09:00 -03:00

130 lines
4.1 KiB
Go

package eth
import (
"context"
"errors"
"fmt"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus/bor"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/rpc"
)
var errBorEngineNotAvailable error = errors.New("Only available in Bor engine")
// GetRootHash returns root hash for given start and end block
func (b *EthAPIBackend) GetRootHash(ctx context.Context, starBlockNr uint64, endBlockNr uint64) (string, error) {
var api *bor.API
for _, _api := range b.eth.Engine().APIs(b.eth.BlockChain()) {
if _api.Namespace == "bor" {
api = _api.Service.(*bor.API)
}
}
if api == nil {
return "", errBorEngineNotAvailable
}
root, err := api.GetRootHash(starBlockNr, endBlockNr)
if err != nil {
return "", err
}
return root, nil
}
// GetVoteOnHash returns the vote on hash
func (b *EthAPIBackend) GetVoteOnHash(ctx context.Context, starBlockNr uint64, endBlockNr uint64, hash string, milestoneId string) (bool, error) {
var api *bor.API
for _, _api := range b.eth.Engine().APIs(b.eth.BlockChain()) {
if _api.Namespace == "bor" {
api = _api.Service.(*bor.API)
}
}
if api == nil {
return false, errBorEngineNotAvailable
}
// Confirmation of 16 blocks on the endblock
tipConfirmationBlockNr := endBlockNr + uint64(16)
// Check if tipConfirmation block exit
_, err := b.BlockByNumber(ctx, rpc.BlockNumber(tipConfirmationBlockNr))
if err != nil {
return false, errTipConfirmationBlock
}
// Check if end block exist
localEndBlock, err := b.BlockByNumber(ctx, rpc.BlockNumber(endBlockNr))
if err != nil || localEndBlock == nil {
return false, errEndBlock
}
localEndBlockHash := localEndBlock.Hash().String()
downloader := b.eth.handler.downloader
isLocked := downloader.LockMutex(endBlockNr)
if !isLocked {
downloader.UnlockMutex(false, "", endBlockNr, common.Hash{})
return false, errors.New("whitelisted number or locked sprint number is more than the received end block number")
}
if localEndBlockHash != hash {
downloader.UnlockMutex(false, "", endBlockNr, common.Hash{})
return false, fmt.Errorf("hash mismatch: localChainHash %s, milestoneHash %s", localEndBlockHash, hash)
}
downloader.UnlockMutex(true, milestoneId, endBlockNr, localEndBlock.Hash())
return true, nil
}
// GetBorBlockReceipt returns bor block receipt
func (b *EthAPIBackend) GetBorBlockReceipt(ctx context.Context, hash common.Hash) (*types.Receipt, error) {
receipt := b.eth.blockchain.GetBorReceiptByHash(hash)
if receipt == nil {
return nil, ethereum.NotFound
}
return receipt, nil
}
// GetBorBlockLogs returns bor block logs
func (b *EthAPIBackend) GetBorBlockLogs(ctx context.Context, hash common.Hash) ([]*types.Log, error) {
receipt := b.eth.blockchain.GetBorReceiptByHash(hash)
if receipt == nil {
return nil, nil
}
return receipt.Logs, nil
}
// GetBorBlockTransaction returns bor block tx
func (b *EthAPIBackend) GetBorBlockTransaction(ctx context.Context, hash common.Hash) (*types.Transaction, common.Hash, uint64, uint64, error) {
tx, blockHash, blockNumber, index := rawdb.ReadBorTransaction(b.eth.ChainDb(), hash)
return tx, blockHash, blockNumber, index, nil
}
func (b *EthAPIBackend) GetBorBlockTransactionWithBlockHash(ctx context.Context, txHash common.Hash, blockHash common.Hash) (*types.Transaction, common.Hash, uint64, uint64, error) {
tx, blockHash, blockNumber, index := rawdb.ReadBorTransactionWithBlockHash(b.eth.ChainDb(), txHash, blockHash)
return tx, blockHash, blockNumber, index, nil
}
// SubscribeStateSyncEvent subscribes to state sync event
func (b *EthAPIBackend) SubscribeStateSyncEvent(ch chan<- core.StateSyncEvent) event.Subscription {
return b.eth.BlockChain().SubscribeStateSyncEvent(ch)
}
// SubscribeChain2HeadEvent subscribes to reorg/head/fork event
func (b *EthAPIBackend) SubscribeChain2HeadEvent(ch chan<- core.Chain2HeadEvent) event.Subscription {
return b.eth.BlockChain().SubscribeChain2HeadEvent(ch)
}