github.com/FusionFoundation/efsn/v4@v4.2.0/internal/ethapi/backend.go

// Copyright 2015 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 ethapi implements the general Ethereum API functions.
package ethapi

import (
	"context"
	ethereum "github.com/FusionFoundation/efsn/v4"
	"math/big"
	"time"

	"github.com/FusionFoundation/efsn/v4/accounts"
	"github.com/FusionFoundation/efsn/v4/common"
	"github.com/FusionFoundation/efsn/v4/consensus"
	"github.com/FusionFoundation/efsn/v4/core"
	"github.com/FusionFoundation/efsn/v4/core/state"
	"github.com/FusionFoundation/efsn/v4/core/types"
	"github.com/FusionFoundation/efsn/v4/core/vm"
	"github.com/FusionFoundation/efsn/v4/ethdb"
	"github.com/FusionFoundation/efsn/v4/event"
	"github.com/FusionFoundation/efsn/v4/params"
	"github.com/FusionFoundation/efsn/v4/rpc"
)

// Backend interface provides the common API services (that are provided by
// both full and light clients) with access to necessary functions.
type Backend interface {
	// General Ethereum API
	SyncProgress() ethereum.SyncProgress

	SuggestGasTipCap(ctx context.Context) (*big.Int, error)
	ChainDb() ethdb.Database
	AccountManager() *accounts.Manager
	RPCGasCap() uint64            // global gas cap for eth_call over rpc: DoS protection
	RPCEVMTimeout() time.Duration // global timeout for eth_call over rpc: DoS protection
	RPCTxFeeCap() float64         // global tx fee cap for all transaction related APIs

	// BlockChain API
	SetHead(number uint64)
	HeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Header, error)
	HeaderByHash(ctx context.Context, hash common.Hash) (*types.Header, error)
	CurrentHeader() *types.Header
	CurrentBlock() *types.Block
	BlockByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Block, error)
	BlockByHash(ctx context.Context, hash common.Hash) (*types.Block, error)
	BlockByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*types.Block, error)
	StateAndHeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*state.StateDB, *types.Header, error)
	StateAndHeaderByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*state.StateDB, *types.Header, error)
	GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error)
	GetTd(ctx context.Context, hash common.Hash) *big.Int
	GetEVM(ctx context.Context, msg core.Message, state *state.StateDB, header *types.Header, vmConfig *vm.Config) (*vm.EVM, func() error, error)
	SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription
	SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription
	SubscribeChainSideEvent(ch chan<- core.ChainSideEvent) event.Subscription

	// TxPool API
	SendTx(ctx context.Context, signedTx *types.Transaction) error
	GetTransaction(ctx context.Context, txHash common.Hash) (*types.Transaction, common.Hash, uint64, uint64, error)
	GetPoolTransactions() (types.Transactions, error)
	GetPoolTransaction(txHash common.Hash) *types.Transaction
	GetPoolTransactionByPredicate(predicate func(*types.Transaction) bool) *types.Transaction
	GetPoolNonce(ctx context.Context, addr common.Address) (uint64, error)
	Stats() (pending int, queued int)
	TxPoolContent() (map[common.Address]types.Transactions, map[common.Address]types.Transactions)
	SubscribeNewTxsEvent(chan<- core.NewTxsEvent) event.Subscription

	AddBlacklist(addr common.Address)
	RemoveBlacklist(addr common.Address)
	GetBlacklist() []common.Address

	// Filter API
	SubscribePendingLogsEvent(ch chan<- []*types.Log) event.Subscription
	SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription

	ChainConfig() *params.ChainConfig
	Engine() consensus.Engine

	IsMining() bool
	Coinbase() (common.Address, error)
}

func GetAPIs(apiBackend Backend) []rpc.API {
	nonceLock := new(AddrLocker)
	ppapi := NewPrivateAccountAPI(apiBackend, nonceLock)
	txapi := NewPublicTransactionPoolAPI(apiBackend, nonceLock)
	return []rpc.API{
		{
			Namespace: "eth",
			Version:   "1.0",
			Service:   NewPublicEthereumAPI(apiBackend),
			Public:    true,
		}, {
			Namespace: "eth",
			Version:   "1.0",
			Service:   NewPublicBlockChainAPI(apiBackend),
			Public:    true,
		}, {
			Namespace: "eth",
			Version:   "1.0",
			Service:   txapi,
			Public:    true,
		}, {
			Namespace: "txpool",
			Version:   "1.0",
			Service:   NewPublicTxPoolAPI(apiBackend),
			Public:    true,
		}, {
			Namespace: "debug",
			Version:   "1.0",
			Service:   NewPublicDebugAPI(apiBackend),
			Public:    true,
		}, {
			Namespace: "debug",
			Version:   "1.0",
			Service:   NewPrivateDebugAPI(apiBackend),
		}, {
			Namespace: "eth",
			Version:   "1.0",
			Service:   NewPublicAccountAPI(apiBackend.AccountManager()),
			Public:    true,
		}, {
			Namespace: "personal",
			Version:   "1.0",
			Service:   ppapi,
			Public:    false,
		}, {
			Namespace: "fsn",
			Version:   "1.0",
			Service:   NewPublicFusionAPI(apiBackend),
			Public:    true,
		}, {
			Namespace: "fsn",
			Version:   "1.0",
			Service:   NewPrivateFusionAPI(apiBackend, nonceLock, ppapi),
			Public:    false,
		}, {
			Namespace: "fsntx",
			Version:   "1.0",
			Service:   NewFusionTransactionAPI(apiBackend, nonceLock, txapi),
			Public:    false,
		}, {
			Namespace: "fsnbt",
			Version:   "1.0",
			Service:   NewPublicFusionAPI(apiBackend),
			Public:    true,
		},
	}
}