forked from cerc-io/plugeth
593e303485
* core/txpool, eth, miner: pre-filter dynamic fees during pending tx retrieval * miner: fix typo * core/txpool: handle init-error in blobpool without panicing --------- Co-authored-by: Martin Holst Swende <martin@swende.se>
439 lines
15 KiB
Go
439 lines
15 KiB
Go
// Copyright 2015 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package eth
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import (
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"context"
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"errors"
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"math/big"
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"time"
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"github.com/ethereum/go-ethereum"
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"github.com/ethereum/go-ethereum/accounts"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/consensus"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/bloombits"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/state"
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"github.com/ethereum/go-ethereum/core/txpool"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/eth/gasprice"
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"github.com/ethereum/go-ethereum/eth/tracers"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/event"
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"github.com/ethereum/go-ethereum/miner"
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"github.com/ethereum/go-ethereum/params"
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"github.com/ethereum/go-ethereum/rpc"
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)
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// EthAPIBackend implements ethapi.Backend and tracers.Backend for full nodes
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type EthAPIBackend struct {
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extRPCEnabled bool
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allowUnprotectedTxs bool
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eth *Ethereum
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gpo *gasprice.Oracle
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}
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// ChainConfig returns the active chain configuration.
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func (b *EthAPIBackend) ChainConfig() *params.ChainConfig {
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return b.eth.blockchain.Config()
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}
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func (b *EthAPIBackend) CurrentBlock() *types.Header {
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return b.eth.blockchain.CurrentBlock()
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}
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func (b *EthAPIBackend) SetHead(number uint64) {
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b.eth.handler.downloader.Cancel()
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b.eth.blockchain.SetHead(number)
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}
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func (b *EthAPIBackend) HeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Header, error) {
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// Pending block is only known by the miner
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if number == rpc.PendingBlockNumber {
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block := b.eth.miner.PendingBlock()
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if block == nil {
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return nil, errors.New("pending block is not available")
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}
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return block.Header(), nil
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}
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// Otherwise resolve and return the block
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if number == rpc.LatestBlockNumber {
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return b.eth.blockchain.CurrentBlock(), nil
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}
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if number == rpc.FinalizedBlockNumber {
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block := b.eth.blockchain.CurrentFinalBlock()
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if block == nil {
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return nil, errors.New("finalized block not found")
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}
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return block, nil
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}
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if number == rpc.SafeBlockNumber {
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block := b.eth.blockchain.CurrentSafeBlock()
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if block == nil {
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return nil, errors.New("safe block not found")
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}
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return block, nil
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}
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return b.eth.blockchain.GetHeaderByNumber(uint64(number)), nil
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}
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func (b *EthAPIBackend) HeaderByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*types.Header, error) {
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if blockNr, ok := blockNrOrHash.Number(); ok {
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return b.HeaderByNumber(ctx, blockNr)
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}
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if hash, ok := blockNrOrHash.Hash(); ok {
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header := b.eth.blockchain.GetHeaderByHash(hash)
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if header == nil {
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return nil, errors.New("header for hash not found")
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}
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if blockNrOrHash.RequireCanonical && b.eth.blockchain.GetCanonicalHash(header.Number.Uint64()) != hash {
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return nil, errors.New("hash is not currently canonical")
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}
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return header, nil
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}
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return nil, errors.New("invalid arguments; neither block nor hash specified")
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}
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func (b *EthAPIBackend) HeaderByHash(ctx context.Context, hash common.Hash) (*types.Header, error) {
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return b.eth.blockchain.GetHeaderByHash(hash), nil
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}
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func (b *EthAPIBackend) BlockByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Block, error) {
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// Pending block is only known by the miner
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if number == rpc.PendingBlockNumber {
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block := b.eth.miner.PendingBlock()
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if block == nil {
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return nil, errors.New("pending block is not available")
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}
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return block, nil
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}
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// Otherwise resolve and return the block
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if number == rpc.LatestBlockNumber {
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header := b.eth.blockchain.CurrentBlock()
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return b.eth.blockchain.GetBlock(header.Hash(), header.Number.Uint64()), nil
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}
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if number == rpc.FinalizedBlockNumber {
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header := b.eth.blockchain.CurrentFinalBlock()
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if header == nil {
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return nil, errors.New("finalized block not found")
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}
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return b.eth.blockchain.GetBlock(header.Hash(), header.Number.Uint64()), nil
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}
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if number == rpc.SafeBlockNumber {
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header := b.eth.blockchain.CurrentSafeBlock()
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if header == nil {
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return nil, errors.New("safe block not found")
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}
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return b.eth.blockchain.GetBlock(header.Hash(), header.Number.Uint64()), nil
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}
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return b.eth.blockchain.GetBlockByNumber(uint64(number)), nil
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}
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func (b *EthAPIBackend) BlockByHash(ctx context.Context, hash common.Hash) (*types.Block, error) {
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return b.eth.blockchain.GetBlockByHash(hash), nil
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}
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// GetBody returns body of a block. It does not resolve special block numbers.
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func (b *EthAPIBackend) GetBody(ctx context.Context, hash common.Hash, number rpc.BlockNumber) (*types.Body, error) {
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if number < 0 || hash == (common.Hash{}) {
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return nil, errors.New("invalid arguments; expect hash and no special block numbers")
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}
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if body := b.eth.blockchain.GetBody(hash); body != nil {
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return body, nil
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}
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return nil, errors.New("block body not found")
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}
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func (b *EthAPIBackend) BlockByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*types.Block, error) {
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if blockNr, ok := blockNrOrHash.Number(); ok {
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return b.BlockByNumber(ctx, blockNr)
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}
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if hash, ok := blockNrOrHash.Hash(); ok {
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header := b.eth.blockchain.GetHeaderByHash(hash)
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if header == nil {
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return nil, errors.New("header for hash not found")
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}
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if blockNrOrHash.RequireCanonical && b.eth.blockchain.GetCanonicalHash(header.Number.Uint64()) != hash {
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return nil, errors.New("hash is not currently canonical")
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}
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block := b.eth.blockchain.GetBlock(hash, header.Number.Uint64())
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if block == nil {
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return nil, errors.New("header found, but block body is missing")
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}
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return block, nil
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}
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return nil, errors.New("invalid arguments; neither block nor hash specified")
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}
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func (b *EthAPIBackend) PendingBlockAndReceipts() (*types.Block, types.Receipts) {
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return b.eth.miner.PendingBlockAndReceipts()
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}
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func (b *EthAPIBackend) StateAndHeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*state.StateDB, *types.Header, error) {
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// Pending state is only known by the miner
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if number == rpc.PendingBlockNumber {
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block, state := b.eth.miner.Pending()
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if block == nil || state == nil {
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return nil, nil, errors.New("pending state is not available")
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}
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return state, block.Header(), nil
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}
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// Otherwise resolve the block number and return its state
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header, err := b.HeaderByNumber(ctx, number)
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if err != nil {
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return nil, nil, err
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}
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if header == nil {
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return nil, nil, errors.New("header not found")
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}
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stateDb, err := b.eth.BlockChain().StateAt(header.Root)
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if err != nil {
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return nil, nil, err
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}
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return stateDb, header, nil
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}
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func (b *EthAPIBackend) StateAndHeaderByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*state.StateDB, *types.Header, error) {
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if blockNr, ok := blockNrOrHash.Number(); ok {
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return b.StateAndHeaderByNumber(ctx, blockNr)
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}
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if hash, ok := blockNrOrHash.Hash(); ok {
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header, err := b.HeaderByHash(ctx, hash)
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if err != nil {
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return nil, nil, err
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}
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if header == nil {
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return nil, nil, errors.New("header for hash not found")
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}
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if blockNrOrHash.RequireCanonical && b.eth.blockchain.GetCanonicalHash(header.Number.Uint64()) != hash {
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return nil, nil, errors.New("hash is not currently canonical")
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}
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stateDb, err := b.eth.BlockChain().StateAt(header.Root)
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if err != nil {
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return nil, nil, err
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}
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return stateDb, header, nil
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}
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return nil, nil, errors.New("invalid arguments; neither block nor hash specified")
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}
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func (b *EthAPIBackend) GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error) {
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return b.eth.blockchain.GetReceiptsByHash(hash), nil
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}
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func (b *EthAPIBackend) GetLogs(ctx context.Context, hash common.Hash, number uint64) ([][]*types.Log, error) {
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return rawdb.ReadLogs(b.eth.chainDb, hash, number), nil
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}
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func (b *EthAPIBackend) GetTd(ctx context.Context, hash common.Hash) *big.Int {
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if header := b.eth.blockchain.GetHeaderByHash(hash); header != nil {
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return b.eth.blockchain.GetTd(hash, header.Number.Uint64())
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}
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return nil
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}
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func (b *EthAPIBackend) GetEVM(ctx context.Context, msg *core.Message, state *state.StateDB, header *types.Header, vmConfig *vm.Config, blockCtx *vm.BlockContext) *vm.EVM {
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if vmConfig == nil {
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vmConfig = b.eth.blockchain.GetVMConfig()
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}
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txContext := core.NewEVMTxContext(msg)
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var context vm.BlockContext
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if blockCtx != nil {
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context = *blockCtx
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} else {
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context = core.NewEVMBlockContext(header, b.eth.BlockChain(), nil)
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}
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return vm.NewEVM(context, txContext, state, b.ChainConfig(), *vmConfig)
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}
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func (b *EthAPIBackend) SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription {
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return b.eth.BlockChain().SubscribeRemovedLogsEvent(ch)
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}
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func (b *EthAPIBackend) SubscribePendingLogsEvent(ch chan<- []*types.Log) event.Subscription {
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return b.eth.miner.SubscribePendingLogs(ch)
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}
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func (b *EthAPIBackend) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription {
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return b.eth.BlockChain().SubscribeChainEvent(ch)
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}
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func (b *EthAPIBackend) SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription {
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return b.eth.BlockChain().SubscribeChainHeadEvent(ch)
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}
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func (b *EthAPIBackend) SubscribeChainSideEvent(ch chan<- core.ChainSideEvent) event.Subscription {
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return b.eth.BlockChain().SubscribeChainSideEvent(ch)
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}
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func (b *EthAPIBackend) SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription {
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return b.eth.BlockChain().SubscribeLogsEvent(ch)
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}
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func (b *EthAPIBackend) SendTx(ctx context.Context, signedTx *types.Transaction) error {
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return b.eth.txPool.Add([]*types.Transaction{signedTx}, true, false)[0]
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}
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func (b *EthAPIBackend) GetPoolTransactions() (types.Transactions, error) {
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pending := b.eth.txPool.Pending(nil, nil, nil)
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var txs types.Transactions
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for _, batch := range pending {
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for _, lazy := range batch {
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if tx := lazy.Resolve(); tx != nil {
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txs = append(txs, tx)
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}
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}
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}
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return txs, nil
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}
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func (b *EthAPIBackend) GetPoolTransaction(hash common.Hash) *types.Transaction {
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return b.eth.txPool.Get(hash)
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}
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// GetTransaction retrieves the lookup along with the transaction itself associate
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// with the given transaction hash.
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//
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// An error will be returned if the transaction is not found, and background
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// indexing for transactions is still in progress. The error is used to indicate the
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// scenario explicitly that the transaction might be reachable shortly.
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//
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// A null will be returned in the transaction is not found and background transaction
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// indexing is already finished. The transaction is not existent from the perspective
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// of node.
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func (b *EthAPIBackend) GetTransaction(ctx context.Context, txHash common.Hash) (bool, *types.Transaction, common.Hash, uint64, uint64, error) {
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lookup, tx, err := b.eth.blockchain.GetTransactionLookup(txHash)
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if err != nil {
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return false, nil, common.Hash{}, 0, 0, err
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}
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if lookup == nil || tx == nil {
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return false, nil, common.Hash{}, 0, 0, nil
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}
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return true, tx, lookup.BlockHash, lookup.BlockIndex, lookup.Index, nil
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}
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func (b *EthAPIBackend) GetPoolNonce(ctx context.Context, addr common.Address) (uint64, error) {
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return b.eth.txPool.Nonce(addr), nil
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}
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func (b *EthAPIBackend) Stats() (runnable int, blocked int) {
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return b.eth.txPool.Stats()
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}
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func (b *EthAPIBackend) TxPoolContent() (map[common.Address][]*types.Transaction, map[common.Address][]*types.Transaction) {
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return b.eth.txPool.Content()
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}
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func (b *EthAPIBackend) TxPoolContentFrom(addr common.Address) ([]*types.Transaction, []*types.Transaction) {
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return b.eth.txPool.ContentFrom(addr)
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}
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func (b *EthAPIBackend) TxPool() *txpool.TxPool {
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return b.eth.txPool
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}
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func (b *EthAPIBackend) SubscribeNewTxsEvent(ch chan<- core.NewTxsEvent) event.Subscription {
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return b.eth.txPool.SubscribeTransactions(ch, true)
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}
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func (b *EthAPIBackend) SyncProgress() ethereum.SyncProgress {
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prog := b.eth.Downloader().Progress()
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if txProg, err := b.eth.blockchain.TxIndexProgress(); err == nil {
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prog.TxIndexFinishedBlocks = txProg.Indexed
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prog.TxIndexRemainingBlocks = txProg.Remaining
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}
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return prog
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}
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func (b *EthAPIBackend) SuggestGasTipCap(ctx context.Context) (*big.Int, error) {
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return b.gpo.SuggestTipCap(ctx)
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}
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func (b *EthAPIBackend) FeeHistory(ctx context.Context, blockCount uint64, lastBlock rpc.BlockNumber, rewardPercentiles []float64) (firstBlock *big.Int, reward [][]*big.Int, baseFee []*big.Int, gasUsedRatio []float64, err error) {
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return b.gpo.FeeHistory(ctx, blockCount, lastBlock, rewardPercentiles)
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}
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func (b *EthAPIBackend) ChainDb() ethdb.Database {
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return b.eth.ChainDb()
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}
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func (b *EthAPIBackend) EventMux() *event.TypeMux {
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return b.eth.EventMux()
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}
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func (b *EthAPIBackend) AccountManager() *accounts.Manager {
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return b.eth.AccountManager()
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}
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func (b *EthAPIBackend) ExtRPCEnabled() bool {
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return b.extRPCEnabled
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}
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func (b *EthAPIBackend) UnprotectedAllowed() bool {
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return b.allowUnprotectedTxs
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}
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func (b *EthAPIBackend) RPCGasCap() uint64 {
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return b.eth.config.RPCGasCap
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}
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func (b *EthAPIBackend) RPCEVMTimeout() time.Duration {
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return b.eth.config.RPCEVMTimeout
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}
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func (b *EthAPIBackend) RPCTxFeeCap() float64 {
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return b.eth.config.RPCTxFeeCap
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}
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func (b *EthAPIBackend) BloomStatus() (uint64, uint64) {
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sections, _, _ := b.eth.bloomIndexer.Sections()
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return params.BloomBitsBlocks, sections
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}
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func (b *EthAPIBackend) ServiceFilter(ctx context.Context, session *bloombits.MatcherSession) {
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for i := 0; i < bloomFilterThreads; i++ {
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go session.Multiplex(bloomRetrievalBatch, bloomRetrievalWait, b.eth.bloomRequests)
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}
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}
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func (b *EthAPIBackend) Engine() consensus.Engine {
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return b.eth.engine
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}
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func (b *EthAPIBackend) CurrentHeader() *types.Header {
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return b.eth.blockchain.CurrentHeader()
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}
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func (b *EthAPIBackend) Miner() *miner.Miner {
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return b.eth.Miner()
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}
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func (b *EthAPIBackend) StartMining() error {
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return b.eth.StartMining()
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}
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func (b *EthAPIBackend) StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, readOnly bool, preferDisk bool) (*state.StateDB, tracers.StateReleaseFunc, error) {
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return b.eth.stateAtBlock(ctx, block, reexec, base, readOnly, preferDisk)
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}
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func (b *EthAPIBackend) StateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (*core.Message, vm.BlockContext, *state.StateDB, tracers.StateReleaseFunc, error) {
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return b.eth.stateAtTransaction(ctx, block, txIndex, reexec)
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}
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