2def62b99b
Logs stored on disk have minimal information. Contextual information such as block number, index of log in block, index of transaction in block are filled in upon request. We can fill in all these fields only having the block header and list of receipts. But determining the transaction hash of a log requires the block body. The goal of this PR is postponing this retrieval until we are sure we the transaction hash. It happens often that the header bloom filter signals there might be matches in a block, but after actually checking them reveals the logs do not match. We want to avoid fetching the body in this case. Note that this changes the semantics of Backend.GetLogs. Downstream callers of GetLogs now assume log context fields have not been derived, and need to call DeriveFields on the logs if necessary.
336 lines
11 KiB
Go
336 lines
11 KiB
Go
// Copyright 2016 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package les
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"math/big"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum"
|
|
"github.com/ethereum/go-ethereum/accounts"
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/consensus"
|
|
"github.com/ethereum/go-ethereum/core"
|
|
"github.com/ethereum/go-ethereum/core/bloombits"
|
|
"github.com/ethereum/go-ethereum/core/rawdb"
|
|
"github.com/ethereum/go-ethereum/core/state"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/core/vm"
|
|
"github.com/ethereum/go-ethereum/eth/gasprice"
|
|
"github.com/ethereum/go-ethereum/eth/tracers"
|
|
"github.com/ethereum/go-ethereum/ethdb"
|
|
"github.com/ethereum/go-ethereum/event"
|
|
"github.com/ethereum/go-ethereum/light"
|
|
"github.com/ethereum/go-ethereum/params"
|
|
"github.com/ethereum/go-ethereum/rpc"
|
|
)
|
|
|
|
type LesApiBackend struct {
|
|
extRPCEnabled bool
|
|
allowUnprotectedTxs bool
|
|
eth *LightEthereum
|
|
gpo *gasprice.Oracle
|
|
}
|
|
|
|
func (b *LesApiBackend) ChainConfig() *params.ChainConfig {
|
|
return b.eth.chainConfig
|
|
}
|
|
|
|
func (b *LesApiBackend) CurrentBlock() *types.Block {
|
|
return types.NewBlockWithHeader(b.eth.BlockChain().CurrentHeader())
|
|
}
|
|
|
|
func (b *LesApiBackend) SetHead(number uint64) {
|
|
b.eth.handler.downloader.Cancel()
|
|
b.eth.blockchain.SetHead(number)
|
|
}
|
|
|
|
func (b *LesApiBackend) HeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Header, error) {
|
|
// Return the latest current as the pending one since there
|
|
// is no pending notion in the light client. TODO(rjl493456442)
|
|
// unify the behavior of `HeaderByNumber` and `PendingBlockAndReceipts`.
|
|
if number == rpc.PendingBlockNumber {
|
|
return b.eth.blockchain.CurrentHeader(), nil
|
|
}
|
|
if number == rpc.LatestBlockNumber {
|
|
return b.eth.blockchain.CurrentHeader(), nil
|
|
}
|
|
return b.eth.blockchain.GetHeaderByNumberOdr(ctx, uint64(number))
|
|
}
|
|
|
|
func (b *LesApiBackend) HeaderByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*types.Header, error) {
|
|
if blockNr, ok := blockNrOrHash.Number(); ok {
|
|
return b.HeaderByNumber(ctx, blockNr)
|
|
}
|
|
if hash, ok := blockNrOrHash.Hash(); ok {
|
|
header, err := b.HeaderByHash(ctx, hash)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if header == nil {
|
|
return nil, errors.New("header for hash not found")
|
|
}
|
|
if blockNrOrHash.RequireCanonical && b.eth.blockchain.GetCanonicalHash(header.Number.Uint64()) != hash {
|
|
return nil, errors.New("hash is not currently canonical")
|
|
}
|
|
return header, nil
|
|
}
|
|
return nil, errors.New("invalid arguments; neither block nor hash specified")
|
|
}
|
|
|
|
func (b *LesApiBackend) HeaderByHash(ctx context.Context, hash common.Hash) (*types.Header, error) {
|
|
return b.eth.blockchain.GetHeaderByHash(hash), nil
|
|
}
|
|
|
|
func (b *LesApiBackend) BlockByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Block, error) {
|
|
header, err := b.HeaderByNumber(ctx, number)
|
|
if header == nil || err != nil {
|
|
return nil, err
|
|
}
|
|
return b.BlockByHash(ctx, header.Hash())
|
|
}
|
|
|
|
func (b *LesApiBackend) BlockByHash(ctx context.Context, hash common.Hash) (*types.Block, error) {
|
|
return b.eth.blockchain.GetBlockByHash(ctx, hash)
|
|
}
|
|
|
|
func (b *LesApiBackend) BlockByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*types.Block, error) {
|
|
if blockNr, ok := blockNrOrHash.Number(); ok {
|
|
return b.BlockByNumber(ctx, blockNr)
|
|
}
|
|
if hash, ok := blockNrOrHash.Hash(); ok {
|
|
block, err := b.BlockByHash(ctx, hash)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if block == nil {
|
|
return nil, errors.New("header found, but block body is missing")
|
|
}
|
|
if blockNrOrHash.RequireCanonical && b.eth.blockchain.GetCanonicalHash(block.NumberU64()) != hash {
|
|
return nil, errors.New("hash is not currently canonical")
|
|
}
|
|
return block, nil
|
|
}
|
|
return nil, errors.New("invalid arguments; neither block nor hash specified")
|
|
}
|
|
|
|
func (b *LesApiBackend) GetBody(ctx context.Context, hash common.Hash, number rpc.BlockNumber) (*types.Body, error) {
|
|
return light.GetBody(ctx, b.eth.odr, hash, uint64(number))
|
|
}
|
|
|
|
func (b *LesApiBackend) PendingBlockAndReceipts() (*types.Block, types.Receipts) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (b *LesApiBackend) StateAndHeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*state.StateDB, *types.Header, error) {
|
|
header, err := b.HeaderByNumber(ctx, number)
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
if header == nil {
|
|
return nil, nil, errors.New("header not found")
|
|
}
|
|
return light.NewState(ctx, header, b.eth.odr), header, nil
|
|
}
|
|
|
|
func (b *LesApiBackend) StateAndHeaderByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*state.StateDB, *types.Header, error) {
|
|
if blockNr, ok := blockNrOrHash.Number(); ok {
|
|
return b.StateAndHeaderByNumber(ctx, blockNr)
|
|
}
|
|
if hash, ok := blockNrOrHash.Hash(); ok {
|
|
header := b.eth.blockchain.GetHeaderByHash(hash)
|
|
if header == nil {
|
|
return nil, nil, errors.New("header for hash not found")
|
|
}
|
|
if blockNrOrHash.RequireCanonical && b.eth.blockchain.GetCanonicalHash(header.Number.Uint64()) != hash {
|
|
return nil, nil, errors.New("hash is not currently canonical")
|
|
}
|
|
return light.NewState(ctx, header, b.eth.odr), header, nil
|
|
}
|
|
return nil, nil, errors.New("invalid arguments; neither block nor hash specified")
|
|
}
|
|
|
|
func (b *LesApiBackend) GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error) {
|
|
if number := rawdb.ReadHeaderNumber(b.eth.chainDb, hash); number != nil {
|
|
return light.GetBlockReceipts(ctx, b.eth.odr, hash, *number)
|
|
}
|
|
return nil, nil
|
|
}
|
|
|
|
func (b *LesApiBackend) GetLogs(ctx context.Context, hash common.Hash, number uint64) ([][]*types.Log, error) {
|
|
return light.GetBlockLogs(ctx, b.eth.odr, hash, number)
|
|
}
|
|
|
|
func (b *LesApiBackend) GetTd(ctx context.Context, hash common.Hash) *big.Int {
|
|
if number := rawdb.ReadHeaderNumber(b.eth.chainDb, hash); number != nil {
|
|
return b.eth.blockchain.GetTdOdr(ctx, hash, *number)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (b *LesApiBackend) GetEVM(ctx context.Context, msg core.Message, state *state.StateDB, header *types.Header, vmConfig *vm.Config) (*vm.EVM, func() error, error) {
|
|
if vmConfig == nil {
|
|
vmConfig = new(vm.Config)
|
|
}
|
|
txContext := core.NewEVMTxContext(msg)
|
|
context := core.NewEVMBlockContext(header, b.eth.blockchain, nil)
|
|
return vm.NewEVM(context, txContext, state, b.eth.chainConfig, *vmConfig), state.Error, nil
|
|
}
|
|
|
|
func (b *LesApiBackend) SendTx(ctx context.Context, signedTx *types.Transaction) error {
|
|
return b.eth.txPool.Add(ctx, signedTx)
|
|
}
|
|
|
|
func (b *LesApiBackend) RemoveTx(txHash common.Hash) {
|
|
b.eth.txPool.RemoveTx(txHash)
|
|
}
|
|
|
|
func (b *LesApiBackend) GetPoolTransactions() (types.Transactions, error) {
|
|
return b.eth.txPool.GetTransactions()
|
|
}
|
|
|
|
func (b *LesApiBackend) GetPoolTransaction(txHash common.Hash) *types.Transaction {
|
|
return b.eth.txPool.GetTransaction(txHash)
|
|
}
|
|
|
|
func (b *LesApiBackend) GetTransaction(ctx context.Context, txHash common.Hash) (*types.Transaction, common.Hash, uint64, uint64, error) {
|
|
return light.GetTransaction(ctx, b.eth.odr, txHash)
|
|
}
|
|
|
|
func (b *LesApiBackend) GetPoolNonce(ctx context.Context, addr common.Address) (uint64, error) {
|
|
return b.eth.txPool.GetNonce(ctx, addr)
|
|
}
|
|
|
|
func (b *LesApiBackend) Stats() (pending int, queued int) {
|
|
return b.eth.txPool.Stats(), 0
|
|
}
|
|
|
|
func (b *LesApiBackend) TxPoolContent() (map[common.Address]types.Transactions, map[common.Address]types.Transactions) {
|
|
return b.eth.txPool.Content()
|
|
}
|
|
|
|
func (b *LesApiBackend) TxPoolContentFrom(addr common.Address) (types.Transactions, types.Transactions) {
|
|
return b.eth.txPool.ContentFrom(addr)
|
|
}
|
|
|
|
func (b *LesApiBackend) SubscribeNewTxsEvent(ch chan<- core.NewTxsEvent) event.Subscription {
|
|
return b.eth.txPool.SubscribeNewTxsEvent(ch)
|
|
}
|
|
|
|
func (b *LesApiBackend) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription {
|
|
return b.eth.blockchain.SubscribeChainEvent(ch)
|
|
}
|
|
|
|
func (b *LesApiBackend) SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription {
|
|
return b.eth.blockchain.SubscribeChainHeadEvent(ch)
|
|
}
|
|
|
|
func (b *LesApiBackend) SubscribeChainSideEvent(ch chan<- core.ChainSideEvent) event.Subscription {
|
|
return b.eth.blockchain.SubscribeChainSideEvent(ch)
|
|
}
|
|
|
|
func (b *LesApiBackend) SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription {
|
|
return b.eth.blockchain.SubscribeLogsEvent(ch)
|
|
}
|
|
|
|
func (b *LesApiBackend) SubscribePendingLogsEvent(ch chan<- []*types.Log) event.Subscription {
|
|
return event.NewSubscription(func(quit <-chan struct{}) error {
|
|
<-quit
|
|
return nil
|
|
})
|
|
}
|
|
|
|
func (b *LesApiBackend) SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription {
|
|
return b.eth.blockchain.SubscribeRemovedLogsEvent(ch)
|
|
}
|
|
|
|
func (b *LesApiBackend) SyncProgress() ethereum.SyncProgress {
|
|
return b.eth.Downloader().Progress()
|
|
}
|
|
|
|
func (b *LesApiBackend) ProtocolVersion() int {
|
|
return b.eth.LesVersion() + 10000
|
|
}
|
|
|
|
func (b *LesApiBackend) SuggestGasTipCap(ctx context.Context) (*big.Int, error) {
|
|
return b.gpo.SuggestTipCap(ctx)
|
|
}
|
|
|
|
func (b *LesApiBackend) FeeHistory(ctx context.Context, blockCount int, lastBlock rpc.BlockNumber, rewardPercentiles []float64) (firstBlock *big.Int, reward [][]*big.Int, baseFee []*big.Int, gasUsedRatio []float64, err error) {
|
|
return b.gpo.FeeHistory(ctx, blockCount, lastBlock, rewardPercentiles)
|
|
}
|
|
|
|
func (b *LesApiBackend) ChainDb() ethdb.Database {
|
|
return b.eth.chainDb
|
|
}
|
|
|
|
func (b *LesApiBackend) AccountManager() *accounts.Manager {
|
|
return b.eth.accountManager
|
|
}
|
|
|
|
func (b *LesApiBackend) ExtRPCEnabled() bool {
|
|
return b.extRPCEnabled
|
|
}
|
|
|
|
func (b *LesApiBackend) UnprotectedAllowed() bool {
|
|
return b.allowUnprotectedTxs
|
|
}
|
|
|
|
func (b *LesApiBackend) RPCGasCap() uint64 {
|
|
return b.eth.config.RPCGasCap
|
|
}
|
|
|
|
func (b *LesApiBackend) RPCEVMTimeout() time.Duration {
|
|
return b.eth.config.RPCEVMTimeout
|
|
}
|
|
|
|
func (b *LesApiBackend) RPCTxFeeCap() float64 {
|
|
return b.eth.config.RPCTxFeeCap
|
|
}
|
|
|
|
func (b *LesApiBackend) BloomStatus() (uint64, uint64) {
|
|
if b.eth.bloomIndexer == nil {
|
|
return 0, 0
|
|
}
|
|
sections, _, _ := b.eth.bloomIndexer.Sections()
|
|
return params.BloomBitsBlocksClient, sections
|
|
}
|
|
|
|
func (b *LesApiBackend) ServiceFilter(ctx context.Context, session *bloombits.MatcherSession) {
|
|
for i := 0; i < bloomFilterThreads; i++ {
|
|
go session.Multiplex(bloomRetrievalBatch, bloomRetrievalWait, b.eth.bloomRequests)
|
|
}
|
|
}
|
|
|
|
func (b *LesApiBackend) Engine() consensus.Engine {
|
|
return b.eth.engine
|
|
}
|
|
|
|
func (b *LesApiBackend) CurrentHeader() *types.Header {
|
|
return b.eth.blockchain.CurrentHeader()
|
|
}
|
|
|
|
func (b *LesApiBackend) StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, readOnly bool, preferDisk bool) (*state.StateDB, tracers.StateReleaseFunc, error) {
|
|
return b.eth.stateAtBlock(ctx, block, reexec)
|
|
}
|
|
|
|
func (b *LesApiBackend) StateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, tracers.StateReleaseFunc, error) {
|
|
return b.eth.stateAtTransaction(ctx, block, txIndex, reexec)
|
|
}
|