171 lines
5.2 KiB
Go
171 lines
5.2 KiB
Go
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// Copyright 2015 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU 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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// go-ethereum 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 General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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package les
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import (
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"math/big"
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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/common/compiler"
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"github.com/ethereum/go-ethereum/core"
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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/downloader"
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"github.com/ethereum/go-ethereum/eth/gasprice"
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"github.com/ethereum/go-ethereum/ethapi"
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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/light"
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rpc "github.com/ethereum/go-ethereum/rpc"
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"golang.org/x/net/context"
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)
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type LesApiBackend struct {
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eth *LightNodeService
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SolcPath string
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solc *compiler.Solidity
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gpo *gasprice.LightPriceOracle
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}
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func (b *LesApiBackend) SetHead(number uint64) {
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b.eth.blockchain.SetHead(number)
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}
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func (b *LesApiBackend) HeaderByNumber(blockNr rpc.BlockNumber) *types.Header {
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if blockNr == rpc.LatestBlockNumber || blockNr == rpc.PendingBlockNumber {
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return b.eth.blockchain.CurrentHeader()
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}
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return b.eth.blockchain.GetHeaderByNumber(uint64(blockNr))
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}
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func (b *LesApiBackend) BlockByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Block, error) {
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header := b.HeaderByNumber(blockNr)
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if header == nil {
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return nil, nil
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}
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return b.GetBlock(ctx, header.Hash())
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}
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func (b *LesApiBackend) StateByNumber(blockNr rpc.BlockNumber) (ethapi.State, error) {
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header := b.HeaderByNumber(blockNr)
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if header == nil {
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return nil, nil
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}
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return light.NewLightState(light.StateTrieID(header), b.eth.odr), nil
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}
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func (b *LesApiBackend) GetBlock(ctx context.Context, blockHash common.Hash) (*types.Block, error) {
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return b.eth.blockchain.GetBlock(ctx, blockHash)
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}
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func (b *LesApiBackend) GetState(header *types.Header) (ethapi.State, error) {
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id := &light.TrieID{
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BlockHash: header.Hash(),
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Root: header.Root,
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}
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return light.NewLightState(id, b.eth.odr), nil
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}
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func (b *LesApiBackend) GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error) {
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return light.GetBlockReceipts(ctx, b.eth.odr, blockHash)
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}
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func (b *LesApiBackend) GetTd(blockHash common.Hash) *big.Int {
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return b.eth.blockchain.GetTd(blockHash)
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}
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func (b *LesApiBackend) GetVMEnv(ctx context.Context, msg core.Message, header *types.Header) (vm.Environment, func() error, error) {
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stateDb := light.NewLightState(light.StateTrieID(header), b.eth.odr)
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stateDb = stateDb.Copy()
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addr, _ := msg.From()
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from, err := stateDb.GetOrNewStateObject(ctx, addr)
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if err != nil {
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return nil, nil, err
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}
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from.SetBalance(common.MaxBig)
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env := light.NewEnv(ctx, stateDb, b.eth.chainConfig, b.eth.blockchain, msg, header, b.eth.chainConfig.VmConfig)
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return env, env.Error, nil
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}
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func (b *LesApiBackend) SendTx(ctx context.Context, signedTx *types.Transaction) error {
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return b.eth.txPool.Add(ctx, signedTx)
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}
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func (b *LesApiBackend) RemoveTx(txHash common.Hash) {
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b.eth.txPool.RemoveTx(txHash)
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}
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func (b *LesApiBackend) GetPoolTransactions() types.Transactions {
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return b.eth.txPool.GetTransactions()
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}
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func (b *LesApiBackend) GetPoolTransaction(txHash common.Hash) *types.Transaction {
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return b.eth.txPool.GetTransaction(txHash)
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}
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func (b *LesApiBackend) GetPoolNonce(ctx context.Context, addr common.Address) (uint64, error) {
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return b.eth.txPool.GetNonce(ctx, addr)
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}
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func (b *LesApiBackend) Stats() (pending int, queued int) {
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return b.eth.txPool.Stats(), 0
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}
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func (b *LesApiBackend) TxPoolContent() (map[common.Address]map[uint64][]*types.Transaction, map[common.Address]map[uint64][]*types.Transaction) {
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return make(map[common.Address]map[uint64][]*types.Transaction), make(map[common.Address]map[uint64][]*types.Transaction)
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}
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func (b *LesApiBackend) Solc() (*compiler.Solidity, error) {
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var err error
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if b.solc == nil {
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b.solc, err = compiler.New(b.SolcPath)
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}
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return b.solc, err
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}
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func (b *LesApiBackend) SetSolc(solcPath string) (*compiler.Solidity, error) {
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b.SolcPath = solcPath
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b.solc = nil
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return b.Solc()
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}
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func (b *LesApiBackend) Downloader() *downloader.Downloader {
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return b.eth.Downloader()
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}
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func (b *LesApiBackend) ProtocolVersion() int {
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return b.eth.LesVersion() + 10000
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}
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func (b *LesApiBackend) SuggestPrice(ctx context.Context) (*big.Int, error) {
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return b.gpo.SuggestPrice(ctx)
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}
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func (b *LesApiBackend) ChainDb() ethdb.Database {
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return b.eth.chainDb
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}
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func (b *LesApiBackend) EventMux() *event.TypeMux {
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return b.eth.eventMux
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}
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func (b *LesApiBackend) AccountManager() *accounts.Manager {
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return b.eth.accountManager
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}
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