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- // 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/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/mps"
- "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/downloader"
- "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/internal/ethapi"
- "github.com/ethereum/go-ethereum/light"
- "github.com/ethereum/go-ethereum/params"
- "github.com/ethereum/go-ethereum/rpc"
- "github.com/jpmorganchase/quorum-security-plugin-sdk-go/proto"
- )
- type LesApiBackend struct {
- extRPCEnabled bool
- allowUnprotectedTxs bool
- eth *LightEthereum
- gpo *gasprice.Oracle
- }
- var _ ethapi.Backend = &LesApiBackend{}
- var _ tracers.Backend = &LesApiBackend{}
- func (b *LesApiBackend) ChainConfig() *params.ChainConfig {
- return b.eth.chainConfig
- }
- func (b *LesApiBackend) PSMR() mps.PrivateStateMetadataResolver {
- panic("not supported")
- }
- 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) {
- if number == rpc.LatestBlockNumber || number == rpc.PendingBlockNumber {
- 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) StateAndHeaderByNumber(ctx context.Context, number rpc.BlockNumber) (vm.MinimalApiState, *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) (vm.MinimalApiState, *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) ([][]*types.Log, error) {
- if number := rawdb.ReadHeaderNumber(b.eth.chainDb, hash); number != nil {
- return light.GetBlockLogs(ctx, b.eth.odr, hash, *number)
- }
- return nil, nil
- }
- 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, apiState vm.MinimalApiState, header *types.Header, vmConfig *vm.Config) (*vm.EVM, func() error, error) {
- statedb := apiState.(*state.StateDB)
- if vmConfig == nil {
- vmConfig = new(vm.Config)
- }
- txContext := core.NewEVMTxContext(msg)
- context := core.NewEVMBlockContext(header, b.eth.blockchain, nil)
- return vm.NewEVM(context, txContext, statedb, statedb, b.eth.chainConfig, *vmConfig), statedb.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) 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) Downloader() *downloader.Downloader {
- return b.eth.Downloader()
- }
- func (b *LesApiBackend) ProtocolVersion() int {
- return b.eth.LesVersion() + 10000
- }
- func (b *LesApiBackend) SuggestPrice(ctx context.Context) (*big.Int, error) {
- if !b.ChainConfig().IsQuorum || b.ChainConfig().IsGasPriceEnabled(b.eth.BlockChain().CurrentHeader().Number) {
- return b.gpo.SuggestPrice(ctx)
- } else {
- return big.NewInt(0), nil
- }
- }
- 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) 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, checkLive bool) (*state.StateDB, mps.PrivateStateRepository, 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, *state.StateDB, mps.PrivateStateRepository, error) {
- return b.eth.stateAtTransaction(ctx, block, txIndex, reexec)
- }
- // Quorum
- func (b *LesApiBackend) GetBlockchain() *core.BlockChain {
- return nil
- }
- func (b *LesApiBackend) SupportsMultitenancy(rpcCtx context.Context) (*proto.PreAuthenticatedAuthenticationToken, bool) {
- authToken := rpc.PreauthenticatedTokenFromContext(rpcCtx)
- if authToken != nil && b.eth.config.MultiTenantEnabled() {
- return authToken, true
- }
- return nil, false
- }
- func (b *LesApiBackend) AccountExtraDataStateGetterByNumber(ctx context.Context, number rpc.BlockNumber) (vm.AccountExtraDataStateGetter, error) {
- s, _, err := b.StateAndHeaderByNumber(ctx, number)
- return s, err
- }
- func (b *LesApiBackend) IsPrivacyMarkerTransactionCreationEnabled() bool {
- return b.eth.config.QuorumChainConfig.PrivacyMarkerEnabled()
- }
- func (b *LesApiBackend) CallTimeOut() time.Duration {
- return b.eth.config.EVMCallTimeOut
- }
- // End Quorum
|