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backend.go
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backend.go
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// 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"
"math/big"
"github.com/Fantom-foundation/lachesis-base/hash"
"github.com/Fantom-foundation/lachesis-base/inter/idx"
"github.com/Fantom-foundation/lachesis-base/inter/pos"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"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/ethdb"
notify "github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rpc"
"github.com/frenchie-foundation/go-opera/evmcore"
"github.com/frenchie-foundation/go-opera/gossip/sfcapi"
"github.com/frenchie-foundation/go-opera/inter"
)
// PeerProgress is synchronization status of a peer
type PeerProgress struct {
CurrentEpoch idx.Epoch
CurrentBlock idx.Block
CurrentBlockHash hash.Event
CurrentBlockTime inter.Timestamp
HighestBlock idx.Block
HighestEpoch idx.Epoch
}
// 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
Progress() PeerProgress
SuggestPrice(ctx context.Context) (*big.Int, error)
ChainDb() ethdb.Database
AccountManager() *accounts.Manager
ExtRPCEnabled() bool
RPCGasCap() uint64 // global gas cap for eth_call over rpc: DoS protection
RPCTxFeeCap() float64 // global tx fee cap for all transaction related APIs
UnprotectedAllowed() bool // allows only for EIP155 transactions.
CalcLogsBloom() bool
// Blockchain API
HeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*evmcore.EvmHeader, error)
HeaderByHash(ctx context.Context, hash common.Hash) (*evmcore.EvmHeader, error)
BlockByNumber(ctx context.Context, number rpc.BlockNumber) (*evmcore.EvmBlock, error)
StateAndHeaderByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*state.StateDB, *evmcore.EvmHeader, error)
//GetHeader(ctx context.Context, hash common.Hash) *evmcore.EvmHeader
BlockByHash(ctx context.Context, hash common.Hash) (*evmcore.EvmBlock, error)
GetReceiptsByNumber(ctx context.Context, number rpc.BlockNumber) (types.Receipts, error)
GetTd(hash common.Hash) *big.Int
GetEVM(ctx context.Context, msg evmcore.Message, state *state.StateDB, header *evmcore.EvmHeader, vmConfig *vm.Config) (*vm.EVM, func() error, error)
MinGasPrice() *big.Int
MaxGasLimit() uint64
// Transaction pool API
SendTx(ctx context.Context, signedTx *types.Transaction) error
GetTransaction(ctx context.Context, txHash common.Hash) (*types.Transaction, uint64, uint64, error)
GetPoolTransactions() (types.Transactions, error)
GetPoolTransaction(txHash common.Hash) *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)
SubscribeNewTxsNotify(chan<- evmcore.NewTxsNotify) notify.Subscription
ChainConfig() *params.ChainConfig
CurrentBlock() *evmcore.EvmBlock
// Lachesis DAG API
GetEventPayload(ctx context.Context, shortEventID string) (*inter.EventPayload, error)
GetEvent(ctx context.Context, shortEventID string) (*inter.Event, error)
GetHeads(ctx context.Context, epoch rpc.BlockNumber) (hash.Events, error)
CurrentEpoch(ctx context.Context) idx.Epoch
SealedEpochTiming(ctx context.Context) (start inter.Timestamp, end inter.Timestamp)
// Lachesis SFC API
GetValidators(ctx context.Context) *pos.Validators
GetUptime(ctx context.Context, stakerID idx.ValidatorID) (*big.Int, error)
GetOriginatedFee(ctx context.Context, stakerID idx.ValidatorID) (*big.Int, error)
GetRewardWeights(ctx context.Context, stakerID idx.ValidatorID) (*big.Int, *big.Int, error)
GetStakerPoI(ctx context.Context, stakerID idx.ValidatorID) (*big.Int, error)
GetDowntime(ctx context.Context, stakerID idx.ValidatorID) (idx.Block, inter.Timestamp, error)
GetDelegationClaimedRewards(ctx context.Context, id sfcapi.DelegationID) (*big.Int, error)
GetStakerClaimedRewards(ctx context.Context, stakerID idx.ValidatorID) (*big.Int, error)
GetStakerDelegationsClaimedRewards(ctx context.Context, stakerID idx.ValidatorID) (*big.Int, error)
GetStaker(ctx context.Context, stakerID idx.ValidatorID) (*sfcapi.SfcStaker, error)
GetStakerID(ctx context.Context, addr common.Address) (idx.ValidatorID, error)
GetStakers(ctx context.Context) ([]sfcapi.SfcStakerAndID, error)
GetDelegationsOf(ctx context.Context, stakerID idx.ValidatorID) ([]sfcapi.SfcDelegationAndID, error)
GetDelegationsByAddress(ctx context.Context, addr common.Address) ([]sfcapi.SfcDelegationAndID, error)
GetDelegation(ctx context.Context, id sfcapi.DelegationID) (*sfcapi.SfcDelegation, error)
}
func GetAPIs(apiBackend Backend) []rpc.API {
nonceLock := new(AddrLocker)
orig := []rpc.API{
{
Namespace: "eth",
Version: "1.0",
Service: NewPublicEthereumAPI(apiBackend),
Public: true,
}, {
Namespace: "eth",
Version: "1.0",
Service: NewPublicBlockChainAPI(apiBackend),
Public: true,
}, {
Namespace: "dag",
Version: "1.0",
Service: NewPublicDAGChainAPI(apiBackend),
Public: true,
}, {
Namespace: "eth",
Version: "1.0",
Service: NewPublicTransactionPoolAPI(apiBackend, nonceLock),
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: NewPrivateAccountAPI(apiBackend, nonceLock),
Public: false,
}, {
Namespace: "sfc",
Version: "1.0",
Service: NewPublicSfcAPI(apiBackend),
Public: false,
}, {
Namespace: "abft",
Version: "1.0",
Service: NewPublicAbftAPI(apiBackend),
Public: false,
},
}
// NOTE: eth-namespace is doubled as fren-namespace for branding purpose
double := []rpc.API{
{
Namespace: "fren",
Version: "1.0",
Service: NewPublicEthereumAPI(apiBackend),
Public: true,
}, {
Namespace: "fren",
Version: "1.0",
Service: NewPublicBlockChainAPI(apiBackend),
Public: true,
}, {
Namespace: "fren",
Version: "1.0",
Service: NewPublicTransactionPoolAPI(apiBackend, nonceLock),
Public: true,
}, {
Namespace: "fren",
Version: "1.0",
Service: NewPublicAccountAPI(apiBackend.AccountManager()),
Public: true,
},
}
return append(orig, double...)
}