524 lines
14 KiB
Go
524 lines
14 KiB
Go
package backendwrapper
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
"math/big"
|
|
"reflect"
|
|
"sync"
|
|
|
|
"github.com/ethereum/go-ethereum"
|
|
"github.com/ethereum/go-ethereum/common"
|
|
gcore "github.com/ethereum/go-ethereum/core"
|
|
"github.com/ethereum/go-ethereum/core/state"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
"github.com/ethereum/go-ethereum/event"
|
|
"github.com/ethereum/go-ethereum/internal/ethapi"
|
|
"github.com/ethereum/go-ethereum/log"
|
|
gparams "github.com/ethereum/go-ethereum/params"
|
|
"github.com/ethereum/go-ethereum/rlp"
|
|
"github.com/ethereum/go-ethereum/rpc"
|
|
|
|
"github.com/openrelayxyz/plugeth-utils/core"
|
|
"github.com/openrelayxyz/plugeth-utils/restricted"
|
|
"github.com/openrelayxyz/plugeth-utils/restricted/params"
|
|
)
|
|
|
|
type Backend struct {
|
|
b ethapi.Backend
|
|
db state.Database
|
|
newTxsFeed event.Feed
|
|
newTxsOnce sync.Once
|
|
chainFeed event.Feed
|
|
chainOnce sync.Once
|
|
chainHeadFeed event.Feed
|
|
chainHeadOnce sync.Once
|
|
chainSideFeed event.Feed
|
|
chainSideOnce sync.Once
|
|
logsFeed event.Feed
|
|
logsOnce sync.Once
|
|
pendingLogsFeed event.Feed
|
|
pendingLogsOnce sync.Once
|
|
removedLogsFeed event.Feed
|
|
removedLogsOnce sync.Once
|
|
chainConfig *params.ChainConfig
|
|
}
|
|
|
|
func NewBackend(b ethapi.Backend) *Backend {
|
|
state, _, err := b.StateAndHeaderByNumber(context.Background(), 0)
|
|
if err != nil {
|
|
panic(err.Error())
|
|
}
|
|
return &Backend{
|
|
b: b,
|
|
db: state.Database(),
|
|
}
|
|
}
|
|
|
|
func (b *Backend) SuggestGasTipCap(ctx context.Context) (*big.Int, error) {
|
|
return b.b.SuggestGasTipCap(ctx)
|
|
}
|
|
func (b *Backend) ChainDb() restricted.Database {
|
|
return &dbWrapper{b.b.ChainDb()}
|
|
}
|
|
func (b *Backend) ExtRPCEnabled() bool {
|
|
return b.b.ExtRPCEnabled()
|
|
}
|
|
func (b *Backend) RPCGasCap() uint64 {
|
|
return b.b.RPCGasCap()
|
|
}
|
|
func (b *Backend) RPCTxFeeCap() float64 {
|
|
return b.b.RPCTxFeeCap()
|
|
}
|
|
func (b *Backend) UnprotectedAllowed() bool {
|
|
return b.b.UnprotectedAllowed()
|
|
}
|
|
func (b *Backend) SetHead(number uint64) {
|
|
b.b.SetHead(number)
|
|
}
|
|
func (b *Backend) HeaderByNumber(ctx context.Context, number int64) ([]byte, error) {
|
|
header, err := b.b.HeaderByNumber(ctx, rpc.BlockNumber(number))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return rlp.EncodeToBytes(header)
|
|
}
|
|
func (b *Backend) HeaderByHash(ctx context.Context, hash core.Hash) ([]byte, error) {
|
|
header, err := b.b.HeaderByHash(ctx, common.Hash(hash))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return rlp.EncodeToBytes(header)
|
|
}
|
|
func (b *Backend) CurrentHeader() []byte {
|
|
ret, _ := rlp.EncodeToBytes(b.b.CurrentHeader())
|
|
return ret
|
|
}
|
|
func (b *Backend) CurrentBlock() []byte {
|
|
ret, _ := rlp.EncodeToBytes(b.b.CurrentBlock())
|
|
return ret
|
|
}
|
|
func (b *Backend) BlockByNumber(ctx context.Context, number int64) ([]byte, error) {
|
|
block, err := b.b.BlockByNumber(ctx, rpc.BlockNumber(number))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return rlp.EncodeToBytes(block)
|
|
}
|
|
func (b *Backend) BlockByHash(ctx context.Context, hash core.Hash) ([]byte, error) {
|
|
block, err := b.b.BlockByHash(ctx, common.Hash(hash))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return rlp.EncodeToBytes(block)
|
|
}
|
|
func (b *Backend) GetReceipts(ctx context.Context, hash core.Hash) ([]byte, error) {
|
|
receipts, err := b.b.GetReceipts(ctx, common.Hash(hash))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return json.Marshal(receipts)
|
|
}
|
|
func (b *Backend) GetTd(ctx context.Context, hash core.Hash) *big.Int {
|
|
return b.b.GetTd(ctx, common.Hash(hash))
|
|
}
|
|
func (b *Backend) SendTx(ctx context.Context, signedTx []byte) error {
|
|
tx := new(types.Transaction)
|
|
if err := tx.UnmarshalBinary(signedTx); err != nil {
|
|
return err
|
|
}
|
|
return b.b.SendTx(ctx, tx)
|
|
}
|
|
func (b *Backend) GetTransaction(ctx context.Context, txHash core.Hash) ([]byte, core.Hash, uint64, uint64, error) { // RLP Encoded transaction {
|
|
_, tx, blockHash, blockNumber, index, err := b.b.GetTransaction(ctx, common.Hash(txHash))
|
|
if err != nil {
|
|
return nil, core.Hash(blockHash), blockNumber, index, err
|
|
}
|
|
enc, err := tx.MarshalBinary()
|
|
return enc, core.Hash(blockHash), blockNumber, index, err
|
|
}
|
|
func (b *Backend) GetPoolTransactions() ([][]byte, error) {
|
|
txs, err := b.b.GetPoolTransactions()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
results := make([][]byte, len(txs))
|
|
for i, tx := range txs {
|
|
results[i], _ = rlp.EncodeToBytes(tx)
|
|
}
|
|
return results, nil
|
|
}
|
|
func (b *Backend) GetPoolTransaction(txHash core.Hash) []byte {
|
|
tx := b.b.GetPoolTransaction(common.Hash(txHash))
|
|
if tx == nil {
|
|
return []byte{}
|
|
}
|
|
enc, _ := rlp.EncodeToBytes(tx)
|
|
return enc
|
|
}
|
|
func (b *Backend) GetPoolNonce(ctx context.Context, addr core.Address) (uint64, error) {
|
|
return b.b.GetPoolNonce(ctx, common.Address(addr))
|
|
}
|
|
func (b *Backend) Stats() (pending int, queued int) {
|
|
return b.b.Stats()
|
|
}
|
|
func (b *Backend) TxPoolContent() (map[core.Address][][]byte, map[core.Address][][]byte) {
|
|
pending, queued := b.b.TxPoolContent()
|
|
trpending, trqueued := make(map[core.Address][][]byte), make(map[core.Address][][]byte)
|
|
for k, v := range pending {
|
|
trpending[core.Address(k)] = make([][]byte, len(v))
|
|
for i, tx := range v {
|
|
trpending[core.Address(k)][i], _ = tx.MarshalBinary()
|
|
}
|
|
}
|
|
for k, v := range queued {
|
|
trqueued[core.Address(k)] = make([][]byte, len(v))
|
|
for i, tx := range v {
|
|
trpending[core.Address(k)][i], _ = tx.MarshalBinary()
|
|
}
|
|
}
|
|
return trpending, trqueued
|
|
} // RLP encoded transactions
|
|
func (b *Backend) BloomStatus() (uint64, uint64) {
|
|
return b.b.BloomStatus()
|
|
}
|
|
func (b *Backend) GetLogs(ctx context.Context, blockHash core.Hash) ([][]byte, error) {
|
|
header, _ := b.b.HeaderByHash(ctx, common.Hash(blockHash))
|
|
logs, err := b.b.GetLogs(ctx, common.Hash(blockHash), uint64(header.Number.Uint64()))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
encLogs := make([][]byte, len(logs))
|
|
for i, log := range logs {
|
|
encLogs[i], _ = rlp.EncodeToBytes(log)
|
|
}
|
|
return encLogs, nil
|
|
} // []RLP encoded logs
|
|
|
|
type dli interface {
|
|
SyncProgress() ethereum.SyncProgress
|
|
}
|
|
|
|
type dl struct {
|
|
dl dli
|
|
}
|
|
|
|
type progress struct {
|
|
p ethereum.SyncProgress
|
|
}
|
|
|
|
func (p *progress) StartingBlock() uint64 {
|
|
return p.p.StartingBlock
|
|
}
|
|
func (p *progress) CurrentBlock() uint64 {
|
|
return p.p.CurrentBlock
|
|
}
|
|
func (p *progress) HighestBlock() uint64 {
|
|
return p.p.HighestBlock
|
|
}
|
|
|
|
func (p *progress) PulledStates() uint64 {
|
|
log.Warn("PulledStates is no longer supported by Geth")
|
|
return 0
|
|
}
|
|
func (p *progress) KnownStates() uint64 {
|
|
log.Warn("KnownStates is no longer supported by Geth")
|
|
return 0
|
|
}
|
|
func (p *progress) SyncedAccounts() uint64 {
|
|
return p.p.SyncedAccounts
|
|
}
|
|
func (p *progress) SyncedAccountBytes() uint64 {
|
|
return p.p.SyncedAccountBytes
|
|
}
|
|
func (p *progress) SyncedBytecodes() uint64 {
|
|
return p.p.SyncedBytecodes
|
|
}
|
|
func (p *progress) SyncedBytecodeBytes() uint64 {
|
|
return p.p.SyncedBytecodeBytes
|
|
}
|
|
func (p *progress) SyncedStorage() uint64 {
|
|
return p.p.SyncedStorage
|
|
}
|
|
func (p *progress) SyncedStorageBytes() uint64 {
|
|
return p.p.SyncedStorageBytes
|
|
}
|
|
func (p *progress) HealedTrienodes() uint64 {
|
|
return p.p.HealedTrienodes
|
|
}
|
|
func (p *progress) HealedTrienodeBytes() uint64 {
|
|
return p.p.HealedTrienodeBytes
|
|
}
|
|
func (p *progress) HealedBytecodes() uint64 {
|
|
return p.p.HealedBytecodes
|
|
}
|
|
func (p *progress) HealedBytecodeBytes() uint64 {
|
|
return p.p.HealedBytecodeBytes
|
|
}
|
|
func (p *progress) HealingTrienodes() uint64 {
|
|
return p.p.HealingTrienodes
|
|
}
|
|
func (p *progress) HealingBytecode() uint64 {
|
|
return p.p.HealingBytecode
|
|
}
|
|
|
|
func (d *dl) Progress() core.Progress {
|
|
return &progress{d.dl.SyncProgress()}
|
|
}
|
|
|
|
func (b *Backend) Downloader() core.Downloader {
|
|
return &dl{b.b}
|
|
}
|
|
|
|
func (b *Backend) SubscribeNewTxsEvent(ch chan<- core.NewTxsEvent) core.Subscription {
|
|
var sub event.Subscription
|
|
b.newTxsOnce.Do(func() {
|
|
bch := make(chan gcore.NewTxsEvent, 100)
|
|
sub = b.b.SubscribeNewTxsEvent(bch)
|
|
go func() {
|
|
for {
|
|
select {
|
|
case item := <-bch:
|
|
txe := core.NewTxsEvent{
|
|
Txs: make([][]byte, len(item.Txs)),
|
|
}
|
|
for i, tx := range item.Txs {
|
|
txe.Txs[i], _ = tx.MarshalBinary()
|
|
}
|
|
b.newTxsFeed.Send(txe)
|
|
case err := <-sub.Err():
|
|
log.Warn("Subscription error for NewTxs", "err", err)
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
})
|
|
return b.newTxsFeed.Subscribe(ch)
|
|
}
|
|
func (b *Backend) SubscribeChainEvent(ch chan<- core.ChainEvent) core.Subscription {
|
|
var sub event.Subscription
|
|
b.chainOnce.Do(func() {
|
|
bch := make(chan gcore.ChainEvent, 100)
|
|
sub = b.b.SubscribeChainEvent(bch)
|
|
go func() {
|
|
for {
|
|
select {
|
|
case item := <-bch:
|
|
ce := core.ChainEvent{
|
|
Hash: core.Hash(item.Hash),
|
|
}
|
|
ce.Block, _ = rlp.EncodeToBytes(item.Block)
|
|
ce.Logs, _ = rlp.EncodeToBytes(item.Logs)
|
|
b.chainFeed.Send(ce)
|
|
case err := <-sub.Err():
|
|
log.Warn("Subscription error for Chain", "err", err)
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
})
|
|
return b.chainFeed.Subscribe(ch)
|
|
}
|
|
func (b *Backend) SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) core.Subscription {
|
|
var sub event.Subscription
|
|
b.chainHeadOnce.Do(func() {
|
|
bch := make(chan gcore.ChainHeadEvent, 100)
|
|
sub = b.b.SubscribeChainHeadEvent(bch)
|
|
go func() {
|
|
for {
|
|
select {
|
|
case item := <-bch:
|
|
che := core.ChainHeadEvent{}
|
|
che.Block, _ = rlp.EncodeToBytes(item.Block)
|
|
b.chainHeadFeed.Send(che)
|
|
case err := <-sub.Err():
|
|
log.Warn("Subscription error for ChainHead", "err", err)
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
})
|
|
return b.chainHeadFeed.Subscribe(ch)
|
|
}
|
|
func (b *Backend) SubscribeChainSideEvent(ch chan<- core.ChainSideEvent) core.Subscription {
|
|
var sub event.Subscription
|
|
b.chainSideOnce.Do(func() {
|
|
bch := make(chan gcore.ChainSideEvent, 100)
|
|
sub = b.b.SubscribeChainSideEvent(bch)
|
|
go func() {
|
|
for {
|
|
select {
|
|
case item := <-bch:
|
|
cse := core.ChainSideEvent{}
|
|
cse.Block, _ = rlp.EncodeToBytes(item.Block)
|
|
b.chainSideFeed.Send(cse)
|
|
case err := <-sub.Err():
|
|
log.Warn("Subscription error for ChainSide", "err", err)
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
})
|
|
return b.chainSideFeed.Subscribe(ch)
|
|
}
|
|
func (b *Backend) SubscribeLogsEvent(ch chan<- [][]byte) core.Subscription {
|
|
var sub event.Subscription
|
|
b.logsOnce.Do(func() {
|
|
bch := make(chan []*types.Log, 100)
|
|
sub = b.b.SubscribeLogsEvent(bch)
|
|
go func() {
|
|
for {
|
|
select {
|
|
case item := <-bch:
|
|
logs := make([][]byte, len(item))
|
|
for i, log := range item {
|
|
logs[i], _ = rlp.EncodeToBytes(log)
|
|
}
|
|
b.logsFeed.Send(logs)
|
|
case err := <-sub.Err():
|
|
log.Warn("Subscription error for Logs", "err", err)
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
})
|
|
return b.logsFeed.Subscribe(ch)
|
|
} // []RLP encoded logs
|
|
func (b *Backend) SubscribePendingLogsEvent(ch chan<- [][]byte) core.Subscription {
|
|
var sub event.Subscription
|
|
b.pendingLogsOnce.Do(func() {
|
|
bch := make(chan []*types.Log, 100)
|
|
sub = b.b.SubscribePendingLogsEvent(bch)
|
|
go func() {
|
|
for {
|
|
select {
|
|
case item := <-bch:
|
|
logs := make([][]byte, len(item))
|
|
for i, log := range item {
|
|
logs[i], _ = rlp.EncodeToBytes(log)
|
|
}
|
|
b.pendingLogsFeed.Send(logs)
|
|
case err := <-sub.Err():
|
|
log.Warn("Subscription error for PendingLogs", "err", err)
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
})
|
|
return b.pendingLogsFeed.Subscribe(ch)
|
|
} // RLP Encoded logs
|
|
func (b *Backend) SubscribeRemovedLogsEvent(ch chan<- []byte) core.Subscription {
|
|
var sub event.Subscription
|
|
b.removedLogsOnce.Do(func() {
|
|
bch := make(chan gcore.RemovedLogsEvent, 100)
|
|
sub = b.b.SubscribeRemovedLogsEvent(bch)
|
|
go func() {
|
|
for {
|
|
select {
|
|
case item := <-bch:
|
|
logs := make([][]byte, len(item.Logs))
|
|
for i, log := range item.Logs {
|
|
logs[i], _ = rlp.EncodeToBytes(log)
|
|
}
|
|
b.removedLogsFeed.Send(item)
|
|
case err := <-sub.Err():
|
|
log.Warn("Subscription error for RemovedLogs", "err", err)
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
})
|
|
return b.removedLogsFeed.Subscribe(ch)
|
|
} // RLP encoded logs
|
|
|
|
func convertAndSet(a, b reflect.Value) (err error) {
|
|
defer func() {
|
|
if recover() != nil {
|
|
fmt.Errorf("error converting: %v", err.Error())
|
|
}
|
|
}()
|
|
a.Set(b.Convert(a.Type()))
|
|
return nil
|
|
}
|
|
|
|
func (b *Backend) ChainConfig() *params.ChainConfig {
|
|
// We're using the reflect library to copy data from params.ChainConfig to
|
|
// pparams.ChainConfig, so this function shouldn't need to be touched for
|
|
// simple changes to ChainConfig (though pparams.ChainConfig may need to be
|
|
// updated). Note that this probably won't carry over consensus engine data.
|
|
if b.chainConfig != nil {
|
|
return b.chainConfig
|
|
}
|
|
b.chainConfig = ¶ms.ChainConfig{}
|
|
nval := reflect.ValueOf(b.b.ChainConfig())
|
|
ntype := nval.Elem().Type()
|
|
lval := reflect.ValueOf(b.chainConfig)
|
|
for i := 0; i < nval.Elem().NumField(); i++ {
|
|
field := ntype.Field(i)
|
|
v := nval.Elem().FieldByName(field.Name)
|
|
lv := lval.Elem().FieldByName(field.Name)
|
|
log.Info("Checking value for", "field", field.Name)
|
|
if lv.Kind() != reflect.Invalid {
|
|
// If core.ChainConfig doesn't have this field, skip it.
|
|
if v.Type() == lv.Type() && lv.CanSet() {
|
|
lv.Set(v)
|
|
} else {
|
|
convertAndSet(lv, v)
|
|
}
|
|
}
|
|
}
|
|
return b.chainConfig
|
|
}
|
|
|
|
func CloneChainConfig(cf *gparams.ChainConfig) *params.ChainConfig {
|
|
result := ¶ms.ChainConfig{}
|
|
nval := reflect.ValueOf(result)
|
|
ntype := nval.Elem().Type()
|
|
lval := reflect.ValueOf(cf)
|
|
for i := 0; i < nval.Elem().NumField(); i++ {
|
|
field := ntype.Field(i)
|
|
v := nval.Elem().FieldByName(field.Name)
|
|
lv := lval.Elem().FieldByName(field.Name)
|
|
log.Info("Checking value for", "field", field.Name)
|
|
if lv.Kind() != reflect.Invalid {
|
|
// If core.ChainConfig doesn't have this field, skip it.
|
|
if v.Type() == lv.Type() && lv.CanSet() {
|
|
v.Set(lv)
|
|
} else {
|
|
convertAndSet(v, lv)
|
|
}
|
|
}
|
|
}
|
|
return result
|
|
}
|
|
|
|
func (b *Backend) GetTrie(h core.Hash) (core.Trie, error) {
|
|
tr, err := b.db.OpenTrie(common.Hash(h))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return NewWrappedTrie(tr), nil
|
|
}
|
|
|
|
func (b *Backend) GetAccountTrie(stateRoot core.Hash, account core.Address) (core.Trie, error) {
|
|
tr, err := b.db.OpenTrie(common.Hash(stateRoot))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
act, err := tr.GetAccount(common.Address(account))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
acTr, err := b.db.OpenStorageTrie(common.Hash(stateRoot), common.Address(account), common.Hash(act.Root), tr)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return NewWrappedTrie(acTr), nil
|
|
}
|
|
|
|
func (b *Backend) GetContractCode(h core.Hash) ([]byte, error) {
|
|
return state.NewDatabase(b.b.ChainDb()).ContractCode(common.Address{}, common.Hash(h))
|
|
}
|