mirror of https://github.com/status-im/op-geth.git
2107 lines
74 KiB
Go
2107 lines
74 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 ethapi
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import (
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"context"
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"encoding/hex"
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"errors"
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"fmt"
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"math/big"
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"strings"
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"time"
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"github.com/davecgh/go-spew/spew"
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"github.com/ethereum/go-ethereum/accounts"
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"github.com/ethereum/go-ethereum/accounts/abi"
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"github.com/ethereum/go-ethereum/accounts/keystore"
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"github.com/ethereum/go-ethereum/accounts/scwallet"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
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"github.com/ethereum/go-ethereum/common/math"
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"github.com/ethereum/go-ethereum/consensus/ethash"
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"github.com/ethereum/go-ethereum/consensus/misc"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/state"
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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/crypto"
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"github.com/ethereum/go-ethereum/eth/tracers/logger"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/p2p"
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"github.com/ethereum/go-ethereum/params"
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/ethereum/go-ethereum/rpc"
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"github.com/tyler-smith/go-bip39"
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)
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// EthereumAPI provides an API to access Ethereum related information.
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type EthereumAPI struct {
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b Backend
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}
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// NewEthereumAPI creates a new Ethereum protocol API.
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func NewEthereumAPI(b Backend) *EthereumAPI {
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return &EthereumAPI{b}
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}
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// GasPrice returns a suggestion for a gas price for legacy transactions.
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func (s *EthereumAPI) GasPrice(ctx context.Context) (*hexutil.Big, error) {
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tipcap, err := s.b.SuggestGasTipCap(ctx)
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if err != nil {
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return nil, err
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}
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if head := s.b.CurrentHeader(); head.BaseFee != nil {
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tipcap.Add(tipcap, head.BaseFee)
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}
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return (*hexutil.Big)(tipcap), err
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}
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// MaxPriorityFeePerGas returns a suggestion for a gas tip cap for dynamic fee transactions.
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func (s *EthereumAPI) MaxPriorityFeePerGas(ctx context.Context) (*hexutil.Big, error) {
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tipcap, err := s.b.SuggestGasTipCap(ctx)
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if err != nil {
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return nil, err
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}
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return (*hexutil.Big)(tipcap), err
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}
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type feeHistoryResult struct {
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OldestBlock *hexutil.Big `json:"oldestBlock"`
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Reward [][]*hexutil.Big `json:"reward,omitempty"`
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BaseFee []*hexutil.Big `json:"baseFeePerGas,omitempty"`
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GasUsedRatio []float64 `json:"gasUsedRatio"`
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}
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// FeeHistory returns the fee market history.
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func (s *EthereumAPI) FeeHistory(ctx context.Context, blockCount math.HexOrDecimal64, lastBlock rpc.BlockNumber, rewardPercentiles []float64) (*feeHistoryResult, error) {
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oldest, reward, baseFee, gasUsed, err := s.b.FeeHistory(ctx, int(blockCount), lastBlock, rewardPercentiles)
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if err != nil {
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return nil, err
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}
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results := &feeHistoryResult{
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OldestBlock: (*hexutil.Big)(oldest),
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GasUsedRatio: gasUsed,
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}
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if reward != nil {
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results.Reward = make([][]*hexutil.Big, len(reward))
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for i, w := range reward {
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results.Reward[i] = make([]*hexutil.Big, len(w))
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for j, v := range w {
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results.Reward[i][j] = (*hexutil.Big)(v)
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}
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}
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}
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if baseFee != nil {
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results.BaseFee = make([]*hexutil.Big, len(baseFee))
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for i, v := range baseFee {
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results.BaseFee[i] = (*hexutil.Big)(v)
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}
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}
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return results, nil
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}
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// Syncing returns false in case the node is currently not syncing with the network. It can be up to date or has not
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// yet received the latest block headers from its pears. In case it is synchronizing:
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// - startingBlock: block number this node started to synchronise from
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// - currentBlock: block number this node is currently importing
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// - highestBlock: block number of the highest block header this node has received from peers
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// - pulledStates: number of state entries processed until now
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// - knownStates: number of known state entries that still need to be pulled
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func (s *EthereumAPI) Syncing() (interface{}, error) {
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progress := s.b.SyncProgress()
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// Return not syncing if the synchronisation already completed
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if progress.CurrentBlock >= progress.HighestBlock {
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return false, nil
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}
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// Otherwise gather the block sync stats
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return map[string]interface{}{
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"startingBlock": hexutil.Uint64(progress.StartingBlock),
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"currentBlock": hexutil.Uint64(progress.CurrentBlock),
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"highestBlock": hexutil.Uint64(progress.HighestBlock),
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"syncedAccounts": hexutil.Uint64(progress.SyncedAccounts),
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"syncedAccountBytes": hexutil.Uint64(progress.SyncedAccountBytes),
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"syncedBytecodes": hexutil.Uint64(progress.SyncedBytecodes),
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"syncedBytecodeBytes": hexutil.Uint64(progress.SyncedBytecodeBytes),
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"syncedStorage": hexutil.Uint64(progress.SyncedStorage),
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"syncedStorageBytes": hexutil.Uint64(progress.SyncedStorageBytes),
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"healedTrienodes": hexutil.Uint64(progress.HealedTrienodes),
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"healedTrienodeBytes": hexutil.Uint64(progress.HealedTrienodeBytes),
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"healedBytecodes": hexutil.Uint64(progress.HealedBytecodes),
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"healedBytecodeBytes": hexutil.Uint64(progress.HealedBytecodeBytes),
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"healingTrienodes": hexutil.Uint64(progress.HealingTrienodes),
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"healingBytecode": hexutil.Uint64(progress.HealingBytecode),
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}, nil
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}
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// TxPoolAPI offers and API for the transaction pool. It only operates on data that is non confidential.
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type TxPoolAPI struct {
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b Backend
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}
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// NewTxPoolAPI creates a new tx pool service that gives information about the transaction pool.
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func NewTxPoolAPI(b Backend) *TxPoolAPI {
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return &TxPoolAPI{b}
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}
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// Content returns the transactions contained within the transaction pool.
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func (s *TxPoolAPI) Content() map[string]map[string]map[string]*RPCTransaction {
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content := map[string]map[string]map[string]*RPCTransaction{
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"pending": make(map[string]map[string]*RPCTransaction),
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"queued": make(map[string]map[string]*RPCTransaction),
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}
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pending, queue := s.b.TxPoolContent()
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curHeader := s.b.CurrentHeader()
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// Flatten the pending transactions
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for account, txs := range pending {
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dump := make(map[string]*RPCTransaction)
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for _, tx := range txs {
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dump[fmt.Sprintf("%d", tx.Nonce())] = NewRPCPendingTransaction(tx, curHeader, s.b.ChainConfig())
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}
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content["pending"][account.Hex()] = dump
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}
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// Flatten the queued transactions
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for account, txs := range queue {
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dump := make(map[string]*RPCTransaction)
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for _, tx := range txs {
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dump[fmt.Sprintf("%d", tx.Nonce())] = NewRPCPendingTransaction(tx, curHeader, s.b.ChainConfig())
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}
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content["queued"][account.Hex()] = dump
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}
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return content
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}
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// ContentFrom returns the transactions contained within the transaction pool.
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func (s *TxPoolAPI) ContentFrom(addr common.Address) map[string]map[string]*RPCTransaction {
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content := make(map[string]map[string]*RPCTransaction, 2)
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pending, queue := s.b.TxPoolContentFrom(addr)
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curHeader := s.b.CurrentHeader()
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// Build the pending transactions
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dump := make(map[string]*RPCTransaction, len(pending))
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for _, tx := range pending {
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dump[fmt.Sprintf("%d", tx.Nonce())] = NewRPCPendingTransaction(tx, curHeader, s.b.ChainConfig())
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}
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content["pending"] = dump
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// Build the queued transactions
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dump = make(map[string]*RPCTransaction, len(queue))
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for _, tx := range queue {
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dump[fmt.Sprintf("%d", tx.Nonce())] = NewRPCPendingTransaction(tx, curHeader, s.b.ChainConfig())
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}
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content["queued"] = dump
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return content
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}
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// Status returns the number of pending and queued transaction in the pool.
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func (s *TxPoolAPI) Status() map[string]hexutil.Uint {
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pending, queue := s.b.Stats()
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return map[string]hexutil.Uint{
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"pending": hexutil.Uint(pending),
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"queued": hexutil.Uint(queue),
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}
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}
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// Inspect retrieves the content of the transaction pool and flattens it into an
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// easily inspectable list.
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func (s *TxPoolAPI) Inspect() map[string]map[string]map[string]string {
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content := map[string]map[string]map[string]string{
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"pending": make(map[string]map[string]string),
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"queued": make(map[string]map[string]string),
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}
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pending, queue := s.b.TxPoolContent()
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// Define a formatter to flatten a transaction into a string
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var format = func(tx *types.Transaction) string {
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if to := tx.To(); to != nil {
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return fmt.Sprintf("%s: %v wei + %v gas × %v wei", tx.To().Hex(), tx.Value(), tx.Gas(), tx.GasPrice())
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}
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return fmt.Sprintf("contract creation: %v wei + %v gas × %v wei", tx.Value(), tx.Gas(), tx.GasPrice())
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}
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// Flatten the pending transactions
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for account, txs := range pending {
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dump := make(map[string]string)
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for _, tx := range txs {
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dump[fmt.Sprintf("%d", tx.Nonce())] = format(tx)
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}
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content["pending"][account.Hex()] = dump
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}
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// Flatten the queued transactions
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for account, txs := range queue {
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dump := make(map[string]string)
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for _, tx := range txs {
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dump[fmt.Sprintf("%d", tx.Nonce())] = format(tx)
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}
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content["queued"][account.Hex()] = dump
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}
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return content
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}
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// EthereumAccountAPI provides an API to access accounts managed by this node.
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// It offers only methods that can retrieve accounts.
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type EthereumAccountAPI struct {
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am *accounts.Manager
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}
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// NewEthereumAccountAPI creates a new EthereumAccountAPI.
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func NewEthereumAccountAPI(am *accounts.Manager) *EthereumAccountAPI {
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return &EthereumAccountAPI{am: am}
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}
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// Accounts returns the collection of accounts this node manages.
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func (s *EthereumAccountAPI) Accounts() []common.Address {
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return s.am.Accounts()
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}
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// PersonalAccountAPI provides an API to access accounts managed by this node.
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// It offers methods to create, (un)lock en list accounts. Some methods accept
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// passwords and are therefore considered private by default.
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type PersonalAccountAPI struct {
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am *accounts.Manager
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nonceLock *AddrLocker
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b Backend
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}
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// NewPersonalAccountAPI create a new PersonalAccountAPI.
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func NewPersonalAccountAPI(b Backend, nonceLock *AddrLocker) *PersonalAccountAPI {
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return &PersonalAccountAPI{
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am: b.AccountManager(),
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nonceLock: nonceLock,
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b: b,
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}
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}
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// ListAccounts will return a list of addresses for accounts this node manages.
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func (s *PersonalAccountAPI) ListAccounts() []common.Address {
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return s.am.Accounts()
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}
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// rawWallet is a JSON representation of an accounts.Wallet interface, with its
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// data contents extracted into plain fields.
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type rawWallet struct {
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URL string `json:"url"`
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Status string `json:"status"`
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Failure string `json:"failure,omitempty"`
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Accounts []accounts.Account `json:"accounts,omitempty"`
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}
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// ListWallets will return a list of wallets this node manages.
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func (s *PersonalAccountAPI) ListWallets() []rawWallet {
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wallets := make([]rawWallet, 0) // return [] instead of nil if empty
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for _, wallet := range s.am.Wallets() {
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status, failure := wallet.Status()
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raw := rawWallet{
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URL: wallet.URL().String(),
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Status: status,
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Accounts: wallet.Accounts(),
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}
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if failure != nil {
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raw.Failure = failure.Error()
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}
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wallets = append(wallets, raw)
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}
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return wallets
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}
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// OpenWallet initiates a hardware wallet opening procedure, establishing a USB
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// connection and attempting to authenticate via the provided passphrase. Note,
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// the method may return an extra challenge requiring a second open (e.g. the
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// Trezor PIN matrix challenge).
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func (s *PersonalAccountAPI) OpenWallet(url string, passphrase *string) error {
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wallet, err := s.am.Wallet(url)
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if err != nil {
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return err
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}
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pass := ""
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if passphrase != nil {
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pass = *passphrase
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}
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return wallet.Open(pass)
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}
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// DeriveAccount requests a HD wallet to derive a new account, optionally pinning
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// it for later reuse.
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func (s *PersonalAccountAPI) DeriveAccount(url string, path string, pin *bool) (accounts.Account, error) {
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wallet, err := s.am.Wallet(url)
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if err != nil {
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return accounts.Account{}, err
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}
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derivPath, err := accounts.ParseDerivationPath(path)
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if err != nil {
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return accounts.Account{}, err
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}
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if pin == nil {
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pin = new(bool)
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}
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return wallet.Derive(derivPath, *pin)
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}
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// NewAccount will create a new account and returns the address for the new account.
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func (s *PersonalAccountAPI) NewAccount(password string) (common.Address, error) {
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ks, err := fetchKeystore(s.am)
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if err != nil {
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return common.Address{}, err
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}
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acc, err := ks.NewAccount(password)
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if err == nil {
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log.Info("Your new key was generated", "address", acc.Address)
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log.Warn("Please backup your key file!", "path", acc.URL.Path)
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log.Warn("Please remember your password!")
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return acc.Address, nil
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||
}
|
||
return common.Address{}, err
|
||
}
|
||
|
||
// fetchKeystore retrieves the encrypted keystore from the account manager.
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func fetchKeystore(am *accounts.Manager) (*keystore.KeyStore, error) {
|
||
if ks := am.Backends(keystore.KeyStoreType); len(ks) > 0 {
|
||
return ks[0].(*keystore.KeyStore), nil
|
||
}
|
||
return nil, errors.New("local keystore not used")
|
||
}
|
||
|
||
// ImportRawKey stores the given hex encoded ECDSA key into the key directory,
|
||
// encrypting it with the passphrase.
|
||
func (s *PersonalAccountAPI) ImportRawKey(privkey string, password string) (common.Address, error) {
|
||
key, err := crypto.HexToECDSA(privkey)
|
||
if err != nil {
|
||
return common.Address{}, err
|
||
}
|
||
ks, err := fetchKeystore(s.am)
|
||
if err != nil {
|
||
return common.Address{}, err
|
||
}
|
||
acc, err := ks.ImportECDSA(key, password)
|
||
return acc.Address, err
|
||
}
|
||
|
||
// UnlockAccount will unlock the account associated with the given address with
|
||
// the given password for duration seconds. If duration is nil it will use a
|
||
// default of 300 seconds. It returns an indication if the account was unlocked.
|
||
func (s *PersonalAccountAPI) UnlockAccount(ctx context.Context, addr common.Address, password string, duration *uint64) (bool, error) {
|
||
// When the API is exposed by external RPC(http, ws etc), unless the user
|
||
// explicitly specifies to allow the insecure account unlocking, otherwise
|
||
// it is disabled.
|
||
if s.b.ExtRPCEnabled() && !s.b.AccountManager().Config().InsecureUnlockAllowed {
|
||
return false, errors.New("account unlock with HTTP access is forbidden")
|
||
}
|
||
|
||
const max = uint64(time.Duration(math.MaxInt64) / time.Second)
|
||
var d time.Duration
|
||
if duration == nil {
|
||
d = 300 * time.Second
|
||
} else if *duration > max {
|
||
return false, errors.New("unlock duration too large")
|
||
} else {
|
||
d = time.Duration(*duration) * time.Second
|
||
}
|
||
ks, err := fetchKeystore(s.am)
|
||
if err != nil {
|
||
return false, err
|
||
}
|
||
err = ks.TimedUnlock(accounts.Account{Address: addr}, password, d)
|
||
if err != nil {
|
||
log.Warn("Failed account unlock attempt", "address", addr, "err", err)
|
||
}
|
||
return err == nil, err
|
||
}
|
||
|
||
// LockAccount will lock the account associated with the given address when it's unlocked.
|
||
func (s *PersonalAccountAPI) LockAccount(addr common.Address) bool {
|
||
if ks, err := fetchKeystore(s.am); err == nil {
|
||
return ks.Lock(addr) == nil
|
||
}
|
||
return false
|
||
}
|
||
|
||
// signTransaction sets defaults and signs the given transaction
|
||
// NOTE: the caller needs to ensure that the nonceLock is held, if applicable,
|
||
// and release it after the transaction has been submitted to the tx pool
|
||
func (s *PersonalAccountAPI) signTransaction(ctx context.Context, args *TransactionArgs, passwd string) (*types.Transaction, error) {
|
||
// Look up the wallet containing the requested signer
|
||
account := accounts.Account{Address: args.from()}
|
||
wallet, err := s.am.Find(account)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
// Set some sanity defaults and terminate on failure
|
||
if err := args.setDefaults(ctx, s.b); err != nil {
|
||
return nil, err
|
||
}
|
||
// Assemble the transaction and sign with the wallet
|
||
tx := args.toTransaction()
|
||
|
||
return wallet.SignTxWithPassphrase(account, passwd, tx, s.b.ChainConfig().ChainID)
|
||
}
|
||
|
||
// SendTransaction will create a transaction from the given arguments and
|
||
// tries to sign it with the key associated with args.From. If the given
|
||
// passwd isn't able to decrypt the key it fails.
|
||
func (s *PersonalAccountAPI) SendTransaction(ctx context.Context, args TransactionArgs, passwd string) (common.Hash, error) {
|
||
if args.Nonce == nil {
|
||
// Hold the mutex around signing to prevent concurrent assignment of
|
||
// the same nonce to multiple accounts.
|
||
s.nonceLock.LockAddr(args.from())
|
||
defer s.nonceLock.UnlockAddr(args.from())
|
||
}
|
||
signed, err := s.signTransaction(ctx, &args, passwd)
|
||
if err != nil {
|
||
log.Warn("Failed transaction send attempt", "from", args.from(), "to", args.To, "value", args.Value.ToInt(), "err", err)
|
||
return common.Hash{}, err
|
||
}
|
||
return SubmitTransaction(ctx, s.b, signed)
|
||
}
|
||
|
||
// SignTransaction will create a transaction from the given arguments and
|
||
// tries to sign it with the key associated with args.From. If the given passwd isn't
|
||
// able to decrypt the key it fails. The transaction is returned in RLP-form, not broadcast
|
||
// to other nodes
|
||
func (s *PersonalAccountAPI) SignTransaction(ctx context.Context, args TransactionArgs, passwd string) (*SignTransactionResult, error) {
|
||
// No need to obtain the noncelock mutex, since we won't be sending this
|
||
// tx into the transaction pool, but right back to the user
|
||
if args.From == nil {
|
||
return nil, fmt.Errorf("sender not specified")
|
||
}
|
||
if args.Gas == nil {
|
||
return nil, fmt.Errorf("gas not specified")
|
||
}
|
||
if args.GasPrice == nil && (args.MaxFeePerGas == nil || args.MaxPriorityFeePerGas == nil) {
|
||
return nil, fmt.Errorf("missing gasPrice or maxFeePerGas/maxPriorityFeePerGas")
|
||
}
|
||
if args.Nonce == nil {
|
||
return nil, fmt.Errorf("nonce not specified")
|
||
}
|
||
// Before actually signing the transaction, ensure the transaction fee is reasonable.
|
||
tx := args.toTransaction()
|
||
if err := checkTxFee(tx.GasPrice(), tx.Gas(), s.b.RPCTxFeeCap()); err != nil {
|
||
return nil, err
|
||
}
|
||
signed, err := s.signTransaction(ctx, &args, passwd)
|
||
if err != nil {
|
||
log.Warn("Failed transaction sign attempt", "from", args.from(), "to", args.To, "value", args.Value.ToInt(), "err", err)
|
||
return nil, err
|
||
}
|
||
data, err := signed.MarshalBinary()
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
return &SignTransactionResult{data, signed}, nil
|
||
}
|
||
|
||
// Sign calculates an Ethereum ECDSA signature for:
|
||
// keccak256("\x19Ethereum Signed Message:\n" + len(message) + message))
|
||
//
|
||
// Note, the produced signature conforms to the secp256k1 curve R, S and V values,
|
||
// where the V value will be 27 or 28 for legacy reasons.
|
||
//
|
||
// The key used to calculate the signature is decrypted with the given password.
|
||
//
|
||
// https://github.com/ethereum/go-ethereum/wiki/Management-APIs#personal_sign
|
||
func (s *PersonalAccountAPI) Sign(ctx context.Context, data hexutil.Bytes, addr common.Address, passwd string) (hexutil.Bytes, error) {
|
||
// Look up the wallet containing the requested signer
|
||
account := accounts.Account{Address: addr}
|
||
|
||
wallet, err := s.b.AccountManager().Find(account)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
// Assemble sign the data with the wallet
|
||
signature, err := wallet.SignTextWithPassphrase(account, passwd, data)
|
||
if err != nil {
|
||
log.Warn("Failed data sign attempt", "address", addr, "err", err)
|
||
return nil, err
|
||
}
|
||
signature[crypto.RecoveryIDOffset] += 27 // Transform V from 0/1 to 27/28 according to the yellow paper
|
||
return signature, nil
|
||
}
|
||
|
||
// EcRecover returns the address for the account that was used to create the signature.
|
||
// Note, this function is compatible with eth_sign and personal_sign. As such it recovers
|
||
// the address of:
|
||
// hash = keccak256("\x19Ethereum Signed Message:\n"${message length}${message})
|
||
// addr = ecrecover(hash, signature)
|
||
//
|
||
// Note, the signature must conform to the secp256k1 curve R, S and V values, where
|
||
// the V value must be 27 or 28 for legacy reasons.
|
||
//
|
||
// https://github.com/ethereum/go-ethereum/wiki/Management-APIs#personal_ecRecover
|
||
func (s *PersonalAccountAPI) EcRecover(ctx context.Context, data, sig hexutil.Bytes) (common.Address, error) {
|
||
if len(sig) != crypto.SignatureLength {
|
||
return common.Address{}, fmt.Errorf("signature must be %d bytes long", crypto.SignatureLength)
|
||
}
|
||
if sig[crypto.RecoveryIDOffset] != 27 && sig[crypto.RecoveryIDOffset] != 28 {
|
||
return common.Address{}, fmt.Errorf("invalid Ethereum signature (V is not 27 or 28)")
|
||
}
|
||
sig[crypto.RecoveryIDOffset] -= 27 // Transform yellow paper V from 27/28 to 0/1
|
||
|
||
rpk, err := crypto.SigToPub(accounts.TextHash(data), sig)
|
||
if err != nil {
|
||
return common.Address{}, err
|
||
}
|
||
return crypto.PubkeyToAddress(*rpk), nil
|
||
}
|
||
|
||
// InitializeWallet initializes a new wallet at the provided URL, by generating and returning a new private key.
|
||
func (s *PersonalAccountAPI) InitializeWallet(ctx context.Context, url string) (string, error) {
|
||
wallet, err := s.am.Wallet(url)
|
||
if err != nil {
|
||
return "", err
|
||
}
|
||
|
||
entropy, err := bip39.NewEntropy(256)
|
||
if err != nil {
|
||
return "", err
|
||
}
|
||
|
||
mnemonic, err := bip39.NewMnemonic(entropy)
|
||
if err != nil {
|
||
return "", err
|
||
}
|
||
|
||
seed := bip39.NewSeed(mnemonic, "")
|
||
|
||
switch wallet := wallet.(type) {
|
||
case *scwallet.Wallet:
|
||
return mnemonic, wallet.Initialize(seed)
|
||
default:
|
||
return "", fmt.Errorf("specified wallet does not support initialization")
|
||
}
|
||
}
|
||
|
||
// Unpair deletes a pairing between wallet and geth.
|
||
func (s *PersonalAccountAPI) Unpair(ctx context.Context, url string, pin string) error {
|
||
wallet, err := s.am.Wallet(url)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
|
||
switch wallet := wallet.(type) {
|
||
case *scwallet.Wallet:
|
||
return wallet.Unpair([]byte(pin))
|
||
default:
|
||
return fmt.Errorf("specified wallet does not support pairing")
|
||
}
|
||
}
|
||
|
||
// BlockChainAPI provides an API to access Ethereum blockchain data.
|
||
type BlockChainAPI struct {
|
||
b Backend
|
||
}
|
||
|
||
// NewBlockChainAPI creates a new Ethereum blockchain API.
|
||
func NewBlockChainAPI(b Backend) *BlockChainAPI {
|
||
return &BlockChainAPI{b}
|
||
}
|
||
|
||
// ChainId is the EIP-155 replay-protection chain id for the current Ethereum chain config.
|
||
//
|
||
// Note, this method does not conform to EIP-695 because the configured chain ID is always
|
||
// returned, regardless of the current head block. We used to return an error when the chain
|
||
// wasn't synced up to a block where EIP-155 is enabled, but this behavior caused issues
|
||
// in CL clients.
|
||
func (api *BlockChainAPI) ChainId() *hexutil.Big {
|
||
return (*hexutil.Big)(api.b.ChainConfig().ChainID)
|
||
}
|
||
|
||
// BlockNumber returns the block number of the chain head.
|
||
func (s *BlockChainAPI) BlockNumber() hexutil.Uint64 {
|
||
header, _ := s.b.HeaderByNumber(context.Background(), rpc.LatestBlockNumber) // latest header should always be available
|
||
return hexutil.Uint64(header.Number.Uint64())
|
||
}
|
||
|
||
// GetBalance returns the amount of wei for the given address in the state of the
|
||
// given block number. The rpc.LatestBlockNumber and rpc.PendingBlockNumber meta
|
||
// block numbers are also allowed.
|
||
func (s *BlockChainAPI) GetBalance(ctx context.Context, address common.Address, blockNrOrHash rpc.BlockNumberOrHash) (*hexutil.Big, error) {
|
||
state, _, err := s.b.StateAndHeaderByNumberOrHash(ctx, blockNrOrHash)
|
||
if state == nil || err != nil {
|
||
return nil, err
|
||
}
|
||
return (*hexutil.Big)(state.GetBalance(address)), state.Error()
|
||
}
|
||
|
||
// Result structs for GetProof
|
||
type AccountResult struct {
|
||
Address common.Address `json:"address"`
|
||
AccountProof []string `json:"accountProof"`
|
||
Balance *hexutil.Big `json:"balance"`
|
||
CodeHash common.Hash `json:"codeHash"`
|
||
Nonce hexutil.Uint64 `json:"nonce"`
|
||
StorageHash common.Hash `json:"storageHash"`
|
||
StorageProof []StorageResult `json:"storageProof"`
|
||
}
|
||
|
||
type StorageResult struct {
|
||
Key string `json:"key"`
|
||
Value *hexutil.Big `json:"value"`
|
||
Proof []string `json:"proof"`
|
||
}
|
||
|
||
// GetProof returns the Merkle-proof for a given account and optionally some storage keys.
|
||
func (s *BlockChainAPI) GetProof(ctx context.Context, address common.Address, storageKeys []string, blockNrOrHash rpc.BlockNumberOrHash) (*AccountResult, error) {
|
||
state, _, err := s.b.StateAndHeaderByNumberOrHash(ctx, blockNrOrHash)
|
||
if state == nil || err != nil {
|
||
return nil, err
|
||
}
|
||
storageTrie, err := state.StorageTrie(address)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
storageHash := types.EmptyRootHash
|
||
codeHash := state.GetCodeHash(address)
|
||
storageProof := make([]StorageResult, len(storageKeys))
|
||
|
||
// if we have a storageTrie, (which means the account exists), we can update the storagehash
|
||
if storageTrie != nil {
|
||
storageHash = storageTrie.Hash()
|
||
} else {
|
||
// no storageTrie means the account does not exist, so the codeHash is the hash of an empty bytearray.
|
||
codeHash = crypto.Keccak256Hash(nil)
|
||
}
|
||
|
||
// create the proof for the storageKeys
|
||
for i, hexKey := range storageKeys {
|
||
key, err := decodeHash(hexKey)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
if storageTrie != nil {
|
||
proof, storageError := state.GetStorageProof(address, key)
|
||
if storageError != nil {
|
||
return nil, storageError
|
||
}
|
||
storageProof[i] = StorageResult{hexKey, (*hexutil.Big)(state.GetState(address, key).Big()), toHexSlice(proof)}
|
||
} else {
|
||
storageProof[i] = StorageResult{hexKey, &hexutil.Big{}, []string{}}
|
||
}
|
||
}
|
||
|
||
// create the accountProof
|
||
accountProof, proofErr := state.GetProof(address)
|
||
if proofErr != nil {
|
||
return nil, proofErr
|
||
}
|
||
|
||
return &AccountResult{
|
||
Address: address,
|
||
AccountProof: toHexSlice(accountProof),
|
||
Balance: (*hexutil.Big)(state.GetBalance(address)),
|
||
CodeHash: codeHash,
|
||
Nonce: hexutil.Uint64(state.GetNonce(address)),
|
||
StorageHash: storageHash,
|
||
StorageProof: storageProof,
|
||
}, state.Error()
|
||
}
|
||
|
||
// decodeHash parses a hex-encoded 32-byte hash. The input may optionally
|
||
// be prefixed by 0x and can have an byte length up to 32.
|
||
func decodeHash(s string) (common.Hash, error) {
|
||
if strings.HasPrefix(s, "0x") || strings.HasPrefix(s, "0X") {
|
||
s = s[2:]
|
||
}
|
||
if (len(s) & 1) > 0 {
|
||
s = "0" + s
|
||
}
|
||
b, err := hex.DecodeString(s)
|
||
if err != nil {
|
||
return common.Hash{}, fmt.Errorf("hex string invalid")
|
||
}
|
||
if len(b) > 32 {
|
||
return common.Hash{}, fmt.Errorf("hex string too long, want at most 32 bytes")
|
||
}
|
||
return common.BytesToHash(b), nil
|
||
}
|
||
|
||
// GetHeaderByNumber returns the requested canonical block header.
|
||
// * When blockNr is -1 the chain head is returned.
|
||
// * When blockNr is -2 the pending chain head is returned.
|
||
func (s *BlockChainAPI) GetHeaderByNumber(ctx context.Context, number rpc.BlockNumber) (map[string]interface{}, error) {
|
||
header, err := s.b.HeaderByNumber(ctx, number)
|
||
if header != nil && err == nil {
|
||
response := s.rpcMarshalHeader(ctx, header)
|
||
if number == rpc.PendingBlockNumber {
|
||
// Pending header need to nil out a few fields
|
||
for _, field := range []string{"hash", "nonce", "miner"} {
|
||
response[field] = nil
|
||
}
|
||
}
|
||
return response, err
|
||
}
|
||
return nil, err
|
||
}
|
||
|
||
// GetHeaderByHash returns the requested header by hash.
|
||
func (s *BlockChainAPI) GetHeaderByHash(ctx context.Context, hash common.Hash) map[string]interface{} {
|
||
header, _ := s.b.HeaderByHash(ctx, hash)
|
||
if header != nil {
|
||
return s.rpcMarshalHeader(ctx, header)
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetBlockByNumber returns the requested canonical block.
|
||
// - When blockNr is -1 the chain head is returned.
|
||
// - When blockNr is -2 the pending chain head is returned.
|
||
// - When fullTx is true all transactions in the block are returned, otherwise
|
||
// only the transaction hash is returned.
|
||
func (s *BlockChainAPI) GetBlockByNumber(ctx context.Context, number rpc.BlockNumber, fullTx bool) (map[string]interface{}, error) {
|
||
block, err := s.b.BlockByNumber(ctx, number)
|
||
if block != nil && err == nil {
|
||
response, err := s.rpcMarshalBlock(ctx, block, true, fullTx)
|
||
if err == nil && number == rpc.PendingBlockNumber {
|
||
// Pending blocks need to nil out a few fields
|
||
for _, field := range []string{"hash", "nonce", "miner"} {
|
||
response[field] = nil
|
||
}
|
||
}
|
||
return response, err
|
||
}
|
||
return nil, err
|
||
}
|
||
|
||
// GetBlockByHash returns the requested block. When fullTx is true all transactions in the block are returned in full
|
||
// detail, otherwise only the transaction hash is returned.
|
||
func (s *BlockChainAPI) GetBlockByHash(ctx context.Context, hash common.Hash, fullTx bool) (map[string]interface{}, error) {
|
||
block, err := s.b.BlockByHash(ctx, hash)
|
||
if block != nil {
|
||
return s.rpcMarshalBlock(ctx, block, true, fullTx)
|
||
}
|
||
return nil, err
|
||
}
|
||
|
||
// GetUncleByBlockNumberAndIndex returns the uncle block for the given block hash and index.
|
||
func (s *BlockChainAPI) GetUncleByBlockNumberAndIndex(ctx context.Context, blockNr rpc.BlockNumber, index hexutil.Uint) (map[string]interface{}, error) {
|
||
block, err := s.b.BlockByNumber(ctx, blockNr)
|
||
if block != nil {
|
||
uncles := block.Uncles()
|
||
if index >= hexutil.Uint(len(uncles)) {
|
||
log.Debug("Requested uncle not found", "number", blockNr, "hash", block.Hash(), "index", index)
|
||
return nil, nil
|
||
}
|
||
block = types.NewBlockWithHeader(uncles[index])
|
||
return s.rpcMarshalBlock(ctx, block, false, false)
|
||
}
|
||
return nil, err
|
||
}
|
||
|
||
// GetUncleByBlockHashAndIndex returns the uncle block for the given block hash and index.
|
||
func (s *BlockChainAPI) GetUncleByBlockHashAndIndex(ctx context.Context, blockHash common.Hash, index hexutil.Uint) (map[string]interface{}, error) {
|
||
block, err := s.b.BlockByHash(ctx, blockHash)
|
||
if block != nil {
|
||
uncles := block.Uncles()
|
||
if index >= hexutil.Uint(len(uncles)) {
|
||
log.Debug("Requested uncle not found", "number", block.Number(), "hash", blockHash, "index", index)
|
||
return nil, nil
|
||
}
|
||
block = types.NewBlockWithHeader(uncles[index])
|
||
return s.rpcMarshalBlock(ctx, block, false, false)
|
||
}
|
||
return nil, err
|
||
}
|
||
|
||
// GetUncleCountByBlockNumber returns number of uncles in the block for the given block number
|
||
func (s *BlockChainAPI) GetUncleCountByBlockNumber(ctx context.Context, blockNr rpc.BlockNumber) *hexutil.Uint {
|
||
if block, _ := s.b.BlockByNumber(ctx, blockNr); block != nil {
|
||
n := hexutil.Uint(len(block.Uncles()))
|
||
return &n
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetUncleCountByBlockHash returns number of uncles in the block for the given block hash
|
||
func (s *BlockChainAPI) GetUncleCountByBlockHash(ctx context.Context, blockHash common.Hash) *hexutil.Uint {
|
||
if block, _ := s.b.BlockByHash(ctx, blockHash); block != nil {
|
||
n := hexutil.Uint(len(block.Uncles()))
|
||
return &n
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetCode returns the code stored at the given address in the state for the given block number.
|
||
func (s *BlockChainAPI) GetCode(ctx context.Context, address common.Address, blockNrOrHash rpc.BlockNumberOrHash) (hexutil.Bytes, error) {
|
||
state, _, err := s.b.StateAndHeaderByNumberOrHash(ctx, blockNrOrHash)
|
||
if state == nil || err != nil {
|
||
return nil, err
|
||
}
|
||
code := state.GetCode(address)
|
||
return code, state.Error()
|
||
}
|
||
|
||
// GetStorageAt returns the storage from the state at the given address, key and
|
||
// block number. The rpc.LatestBlockNumber and rpc.PendingBlockNumber meta block
|
||
// numbers are also allowed.
|
||
func (s *BlockChainAPI) GetStorageAt(ctx context.Context, address common.Address, hexKey string, blockNrOrHash rpc.BlockNumberOrHash) (hexutil.Bytes, error) {
|
||
state, _, err := s.b.StateAndHeaderByNumberOrHash(ctx, blockNrOrHash)
|
||
if state == nil || err != nil {
|
||
return nil, err
|
||
}
|
||
key, err := decodeHash(hexKey)
|
||
if err != nil {
|
||
return nil, fmt.Errorf("unable to decode storage key: %s", err)
|
||
}
|
||
res := state.GetState(address, key)
|
||
return res[:], state.Error()
|
||
}
|
||
|
||
// OverrideAccount indicates the overriding fields of account during the execution
|
||
// of a message call.
|
||
// Note, state and stateDiff can't be specified at the same time. If state is
|
||
// set, message execution will only use the data in the given state. Otherwise
|
||
// if statDiff is set, all diff will be applied first and then execute the call
|
||
// message.
|
||
type OverrideAccount struct {
|
||
Nonce *hexutil.Uint64 `json:"nonce"`
|
||
Code *hexutil.Bytes `json:"code"`
|
||
Balance **hexutil.Big `json:"balance"`
|
||
State *map[common.Hash]common.Hash `json:"state"`
|
||
StateDiff *map[common.Hash]common.Hash `json:"stateDiff"`
|
||
}
|
||
|
||
// StateOverride is the collection of overridden accounts.
|
||
type StateOverride map[common.Address]OverrideAccount
|
||
|
||
// Apply overrides the fields of specified accounts into the given state.
|
||
func (diff *StateOverride) Apply(state *state.StateDB) error {
|
||
if diff == nil {
|
||
return nil
|
||
}
|
||
for addr, account := range *diff {
|
||
// Override account nonce.
|
||
if account.Nonce != nil {
|
||
state.SetNonce(addr, uint64(*account.Nonce))
|
||
}
|
||
// Override account(contract) code.
|
||
if account.Code != nil {
|
||
state.SetCode(addr, *account.Code)
|
||
}
|
||
// Override account balance.
|
||
if account.Balance != nil {
|
||
state.SetBalance(addr, (*big.Int)(*account.Balance))
|
||
}
|
||
if account.State != nil && account.StateDiff != nil {
|
||
return fmt.Errorf("account %s has both 'state' and 'stateDiff'", addr.Hex())
|
||
}
|
||
// Replace entire state if caller requires.
|
||
if account.State != nil {
|
||
state.SetStorage(addr, *account.State)
|
||
}
|
||
// Apply state diff into specified accounts.
|
||
if account.StateDiff != nil {
|
||
for key, value := range *account.StateDiff {
|
||
state.SetState(addr, key, value)
|
||
}
|
||
}
|
||
}
|
||
// Now finalize the changes. Finalize is normally performed between transactions.
|
||
// By using finalize, the overrides are semantically behaving as
|
||
// if they were created in a transaction just before the tracing occur.
|
||
state.Finalise(false)
|
||
return nil
|
||
}
|
||
|
||
// BlockOverrides is a set of header fields to override.
|
||
type BlockOverrides struct {
|
||
Number *hexutil.Big
|
||
Difficulty *hexutil.Big
|
||
Time *hexutil.Uint64
|
||
GasLimit *hexutil.Uint64
|
||
Coinbase *common.Address
|
||
Random *common.Hash
|
||
BaseFee *hexutil.Big
|
||
}
|
||
|
||
// Apply overrides the given header fields into the given block context.
|
||
func (diff *BlockOverrides) Apply(blockCtx *vm.BlockContext) {
|
||
if diff == nil {
|
||
return
|
||
}
|
||
if diff.Number != nil {
|
||
blockCtx.BlockNumber = diff.Number.ToInt()
|
||
}
|
||
if diff.Difficulty != nil {
|
||
blockCtx.Difficulty = diff.Difficulty.ToInt()
|
||
}
|
||
if diff.Time != nil {
|
||
blockCtx.Time = uint64(*diff.Time)
|
||
}
|
||
if diff.GasLimit != nil {
|
||
blockCtx.GasLimit = uint64(*diff.GasLimit)
|
||
}
|
||
if diff.Coinbase != nil {
|
||
blockCtx.Coinbase = *diff.Coinbase
|
||
}
|
||
if diff.Random != nil {
|
||
blockCtx.Random = diff.Random
|
||
}
|
||
if diff.BaseFee != nil {
|
||
blockCtx.BaseFee = diff.BaseFee.ToInt()
|
||
}
|
||
}
|
||
|
||
func DoCall(ctx context.Context, b Backend, args TransactionArgs, blockNrOrHash rpc.BlockNumberOrHash, overrides *StateOverride, timeout time.Duration, globalGasCap uint64) (*core.ExecutionResult, error) {
|
||
defer func(start time.Time) { log.Debug("Executing EVM call finished", "runtime", time.Since(start)) }(time.Now())
|
||
|
||
state, header, err := b.StateAndHeaderByNumberOrHash(ctx, blockNrOrHash)
|
||
if state == nil || err != nil {
|
||
return nil, err
|
||
}
|
||
if err := overrides.Apply(state); err != nil {
|
||
return nil, err
|
||
}
|
||
// Setup context so it may be cancelled the call has completed
|
||
// or, in case of unmetered gas, setup a context with a timeout.
|
||
var cancel context.CancelFunc
|
||
if timeout > 0 {
|
||
ctx, cancel = context.WithTimeout(ctx, timeout)
|
||
} else {
|
||
ctx, cancel = context.WithCancel(ctx)
|
||
}
|
||
// Make sure the context is cancelled when the call has completed
|
||
// this makes sure resources are cleaned up.
|
||
defer cancel()
|
||
|
||
// Get a new instance of the EVM.
|
||
msg, err := args.ToMessage(globalGasCap, header.BaseFee)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
evm, vmError, err := b.GetEVM(ctx, msg, state, header, &vm.Config{NoBaseFee: true})
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
// Wait for the context to be done and cancel the evm. Even if the
|
||
// EVM has finished, cancelling may be done (repeatedly)
|
||
go func() {
|
||
<-ctx.Done()
|
||
evm.Cancel()
|
||
}()
|
||
|
||
// Execute the message.
|
||
gp := new(core.GasPool).AddGas(math.MaxUint64)
|
||
result, err := core.ApplyMessage(evm, msg, gp)
|
||
if err := vmError(); err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
// If the timer caused an abort, return an appropriate error message
|
||
if evm.Cancelled() {
|
||
return nil, fmt.Errorf("execution aborted (timeout = %v)", timeout)
|
||
}
|
||
if err != nil {
|
||
return result, fmt.Errorf("err: %w (supplied gas %d)", err, msg.Gas())
|
||
}
|
||
return result, nil
|
||
}
|
||
|
||
func newRevertError(result *core.ExecutionResult) *revertError {
|
||
reason, errUnpack := abi.UnpackRevert(result.Revert())
|
||
err := errors.New("execution reverted")
|
||
if errUnpack == nil {
|
||
err = fmt.Errorf("execution reverted: %v", reason)
|
||
}
|
||
return &revertError{
|
||
error: err,
|
||
reason: hexutil.Encode(result.Revert()),
|
||
}
|
||
}
|
||
|
||
// revertError is an API error that encompasses an EVM revertal with JSON error
|
||
// code and a binary data blob.
|
||
type revertError struct {
|
||
error
|
||
reason string // revert reason hex encoded
|
||
}
|
||
|
||
// ErrorCode returns the JSON error code for a revertal.
|
||
// See: https://github.com/ethereum/wiki/wiki/JSON-RPC-Error-Codes-Improvement-Proposal
|
||
func (e *revertError) ErrorCode() int {
|
||
return 3
|
||
}
|
||
|
||
// ErrorData returns the hex encoded revert reason.
|
||
func (e *revertError) ErrorData() interface{} {
|
||
return e.reason
|
||
}
|
||
|
||
// Call executes the given transaction on the state for the given block number.
|
||
//
|
||
// Additionally, the caller can specify a batch of contract for fields overriding.
|
||
//
|
||
// Note, this function doesn't make and changes in the state/blockchain and is
|
||
// useful to execute and retrieve values.
|
||
func (s *BlockChainAPI) Call(ctx context.Context, args TransactionArgs, blockNrOrHash rpc.BlockNumberOrHash, overrides *StateOverride) (hexutil.Bytes, error) {
|
||
result, err := DoCall(ctx, s.b, args, blockNrOrHash, overrides, s.b.RPCEVMTimeout(), s.b.RPCGasCap())
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
// If the result contains a revert reason, try to unpack and return it.
|
||
if len(result.Revert()) > 0 {
|
||
return nil, newRevertError(result)
|
||
}
|
||
return result.Return(), result.Err
|
||
}
|
||
|
||
func DoEstimateGas(ctx context.Context, b Backend, args TransactionArgs, blockNrOrHash rpc.BlockNumberOrHash, gasCap uint64) (hexutil.Uint64, error) {
|
||
// Binary search the gas requirement, as it may be higher than the amount used
|
||
var (
|
||
lo uint64 = params.TxGas - 1
|
||
hi uint64
|
||
cap uint64
|
||
)
|
||
// Use zero address if sender unspecified.
|
||
if args.From == nil {
|
||
args.From = new(common.Address)
|
||
}
|
||
// Determine the highest gas limit can be used during the estimation.
|
||
if args.Gas != nil && uint64(*args.Gas) >= params.TxGas {
|
||
hi = uint64(*args.Gas)
|
||
} else {
|
||
// Retrieve the block to act as the gas ceiling
|
||
block, err := b.BlockByNumberOrHash(ctx, blockNrOrHash)
|
||
if err != nil {
|
||
return 0, err
|
||
}
|
||
if block == nil {
|
||
return 0, errors.New("block not found")
|
||
}
|
||
hi = block.GasLimit()
|
||
}
|
||
// Normalize the max fee per gas the call is willing to spend.
|
||
var feeCap *big.Int
|
||
if args.GasPrice != nil && (args.MaxFeePerGas != nil || args.MaxPriorityFeePerGas != nil) {
|
||
return 0, errors.New("both gasPrice and (maxFeePerGas or maxPriorityFeePerGas) specified")
|
||
} else if args.GasPrice != nil {
|
||
feeCap = args.GasPrice.ToInt()
|
||
} else if args.MaxFeePerGas != nil {
|
||
feeCap = args.MaxFeePerGas.ToInt()
|
||
} else {
|
||
feeCap = common.Big0
|
||
}
|
||
// Recap the highest gas limit with account's available balance.
|
||
if feeCap.BitLen() != 0 {
|
||
state, _, err := b.StateAndHeaderByNumberOrHash(ctx, blockNrOrHash)
|
||
if err != nil {
|
||
return 0, err
|
||
}
|
||
balance := state.GetBalance(*args.From) // from can't be nil
|
||
available := new(big.Int).Set(balance)
|
||
if args.Value != nil {
|
||
if args.Value.ToInt().Cmp(available) >= 0 {
|
||
return 0, core.ErrInsufficientFundsForTransfer
|
||
}
|
||
available.Sub(available, args.Value.ToInt())
|
||
}
|
||
allowance := new(big.Int).Div(available, feeCap)
|
||
|
||
// If the allowance is larger than maximum uint64, skip checking
|
||
if allowance.IsUint64() && hi > allowance.Uint64() {
|
||
transfer := args.Value
|
||
if transfer == nil {
|
||
transfer = new(hexutil.Big)
|
||
}
|
||
log.Warn("Gas estimation capped by limited funds", "original", hi, "balance", balance,
|
||
"sent", transfer.ToInt(), "maxFeePerGas", feeCap, "fundable", allowance)
|
||
hi = allowance.Uint64()
|
||
}
|
||
}
|
||
// Recap the highest gas allowance with specified gascap.
|
||
if gasCap != 0 && hi > gasCap {
|
||
log.Warn("Caller gas above allowance, capping", "requested", hi, "cap", gasCap)
|
||
hi = gasCap
|
||
}
|
||
cap = hi
|
||
|
||
// Create a helper to check if a gas allowance results in an executable transaction
|
||
executable := func(gas uint64) (bool, *core.ExecutionResult, error) {
|
||
args.Gas = (*hexutil.Uint64)(&gas)
|
||
|
||
result, err := DoCall(ctx, b, args, blockNrOrHash, nil, 0, gasCap)
|
||
if err != nil {
|
||
if errors.Is(err, core.ErrIntrinsicGas) {
|
||
return true, nil, nil // Special case, raise gas limit
|
||
}
|
||
return true, nil, err // Bail out
|
||
}
|
||
return result.Failed(), result, nil
|
||
}
|
||
// Execute the binary search and hone in on an executable gas limit
|
||
for lo+1 < hi {
|
||
mid := (hi + lo) / 2
|
||
failed, _, err := executable(mid)
|
||
|
||
// If the error is not nil(consensus error), it means the provided message
|
||
// call or transaction will never be accepted no matter how much gas it is
|
||
// assigned. Return the error directly, don't struggle any more.
|
||
if err != nil {
|
||
return 0, err
|
||
}
|
||
if failed {
|
||
lo = mid
|
||
} else {
|
||
hi = mid
|
||
}
|
||
}
|
||
// Reject the transaction as invalid if it still fails at the highest allowance
|
||
if hi == cap {
|
||
failed, result, err := executable(hi)
|
||
if err != nil {
|
||
return 0, err
|
||
}
|
||
if failed {
|
||
if result != nil && result.Err != vm.ErrOutOfGas {
|
||
if len(result.Revert()) > 0 {
|
||
return 0, newRevertError(result)
|
||
}
|
||
return 0, result.Err
|
||
}
|
||
// Otherwise, the specified gas cap is too low
|
||
return 0, fmt.Errorf("gas required exceeds allowance (%d)", cap)
|
||
}
|
||
}
|
||
return hexutil.Uint64(hi), nil
|
||
}
|
||
|
||
// EstimateGas returns an estimate of the amount of gas needed to execute the
|
||
// given transaction against the current pending block.
|
||
func (s *BlockChainAPI) EstimateGas(ctx context.Context, args TransactionArgs, blockNrOrHash *rpc.BlockNumberOrHash) (hexutil.Uint64, error) {
|
||
bNrOrHash := rpc.BlockNumberOrHashWithNumber(rpc.PendingBlockNumber)
|
||
if blockNrOrHash != nil {
|
||
bNrOrHash = *blockNrOrHash
|
||
}
|
||
return DoEstimateGas(ctx, s.b, args, bNrOrHash, s.b.RPCGasCap())
|
||
}
|
||
|
||
// RPCMarshalHeader converts the given header to the RPC output .
|
||
func RPCMarshalHeader(head *types.Header) map[string]interface{} {
|
||
result := map[string]interface{}{
|
||
"number": (*hexutil.Big)(head.Number),
|
||
"hash": head.Hash(),
|
||
"parentHash": head.ParentHash,
|
||
"nonce": head.Nonce,
|
||
"mixHash": head.MixDigest,
|
||
"sha3Uncles": head.UncleHash,
|
||
"logsBloom": head.Bloom,
|
||
"stateRoot": head.Root,
|
||
"miner": head.Coinbase,
|
||
"difficulty": (*hexutil.Big)(head.Difficulty),
|
||
"extraData": hexutil.Bytes(head.Extra),
|
||
"size": hexutil.Uint64(head.Size()),
|
||
"gasLimit": hexutil.Uint64(head.GasLimit),
|
||
"gasUsed": hexutil.Uint64(head.GasUsed),
|
||
"timestamp": hexutil.Uint64(head.Time),
|
||
"transactionsRoot": head.TxHash,
|
||
"receiptsRoot": head.ReceiptHash,
|
||
}
|
||
|
||
if head.BaseFee != nil {
|
||
result["baseFeePerGas"] = (*hexutil.Big)(head.BaseFee)
|
||
}
|
||
|
||
if head.WithdrawalsHash != nil {
|
||
result["withdrawalsRoot"] = head.WithdrawalsHash
|
||
}
|
||
|
||
return result
|
||
}
|
||
|
||
// RPCMarshalBlock converts the given block to the RPC output which depends on fullTx. If inclTx is true transactions are
|
||
// returned. When fullTx is true the returned block contains full transaction details, otherwise it will only contain
|
||
// transaction hashes.
|
||
func RPCMarshalBlock(block *types.Block, inclTx bool, fullTx bool, config *params.ChainConfig) (map[string]interface{}, error) {
|
||
fields := RPCMarshalHeader(block.Header())
|
||
fields["size"] = hexutil.Uint64(block.Size())
|
||
|
||
if inclTx {
|
||
formatTx := func(tx *types.Transaction) (interface{}, error) {
|
||
return tx.Hash(), nil
|
||
}
|
||
if fullTx {
|
||
formatTx = func(tx *types.Transaction) (interface{}, error) {
|
||
return newRPCTransactionFromBlockHash(block, tx.Hash(), config), nil
|
||
}
|
||
}
|
||
txs := block.Transactions()
|
||
transactions := make([]interface{}, len(txs))
|
||
var err error
|
||
for i, tx := range txs {
|
||
if transactions[i], err = formatTx(tx); err != nil {
|
||
return nil, err
|
||
}
|
||
}
|
||
fields["transactions"] = transactions
|
||
}
|
||
uncles := block.Uncles()
|
||
uncleHashes := make([]common.Hash, len(uncles))
|
||
for i, uncle := range uncles {
|
||
uncleHashes[i] = uncle.Hash()
|
||
}
|
||
fields["uncles"] = uncleHashes
|
||
if block.Header().WithdrawalsHash != nil {
|
||
fields["withdrawals"] = block.Withdrawals()
|
||
}
|
||
return fields, nil
|
||
}
|
||
|
||
// rpcMarshalHeader uses the generalized output filler, then adds the total difficulty field, which requires
|
||
// a `BlockchainAPI`.
|
||
func (s *BlockChainAPI) rpcMarshalHeader(ctx context.Context, header *types.Header) map[string]interface{} {
|
||
fields := RPCMarshalHeader(header)
|
||
fields["totalDifficulty"] = (*hexutil.Big)(s.b.GetTd(ctx, header.Hash()))
|
||
return fields
|
||
}
|
||
|
||
// rpcMarshalBlock uses the generalized output filler, then adds the total difficulty field, which requires
|
||
// a `BlockchainAPI`.
|
||
func (s *BlockChainAPI) rpcMarshalBlock(ctx context.Context, b *types.Block, inclTx bool, fullTx bool) (map[string]interface{}, error) {
|
||
fields, err := RPCMarshalBlock(b, inclTx, fullTx, s.b.ChainConfig())
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
if inclTx {
|
||
fields["totalDifficulty"] = (*hexutil.Big)(s.b.GetTd(ctx, b.Hash()))
|
||
}
|
||
return fields, err
|
||
}
|
||
|
||
// RPCTransaction represents a transaction that will serialize to the RPC representation of a transaction
|
||
type RPCTransaction struct {
|
||
BlockHash *common.Hash `json:"blockHash"`
|
||
BlockNumber *hexutil.Big `json:"blockNumber"`
|
||
From common.Address `json:"from"`
|
||
Gas hexutil.Uint64 `json:"gas"`
|
||
GasPrice *hexutil.Big `json:"gasPrice"`
|
||
GasFeeCap *hexutil.Big `json:"maxFeePerGas,omitempty"`
|
||
GasTipCap *hexutil.Big `json:"maxPriorityFeePerGas,omitempty"`
|
||
Hash common.Hash `json:"hash"`
|
||
Input hexutil.Bytes `json:"input"`
|
||
Nonce hexutil.Uint64 `json:"nonce"`
|
||
To *common.Address `json:"to"`
|
||
TransactionIndex *hexutil.Uint64 `json:"transactionIndex"`
|
||
Value *hexutil.Big `json:"value"`
|
||
Type hexutil.Uint64 `json:"type"`
|
||
Accesses *types.AccessList `json:"accessList,omitempty"`
|
||
ChainID *hexutil.Big `json:"chainId,omitempty"`
|
||
V *hexutil.Big `json:"v"`
|
||
R *hexutil.Big `json:"r"`
|
||
S *hexutil.Big `json:"s"`
|
||
}
|
||
|
||
// newRPCTransaction returns a transaction that will serialize to the RPC
|
||
// representation, with the given location metadata set (if available).
|
||
func newRPCTransaction(tx *types.Transaction, blockHash common.Hash, blockNumber uint64, index uint64, baseFee *big.Int, config *params.ChainConfig) *RPCTransaction {
|
||
signer := types.MakeSigner(config, new(big.Int).SetUint64(blockNumber))
|
||
from, _ := types.Sender(signer, tx)
|
||
v, r, s := tx.RawSignatureValues()
|
||
result := &RPCTransaction{
|
||
Type: hexutil.Uint64(tx.Type()),
|
||
From: from,
|
||
Gas: hexutil.Uint64(tx.Gas()),
|
||
GasPrice: (*hexutil.Big)(tx.GasPrice()),
|
||
Hash: tx.Hash(),
|
||
Input: hexutil.Bytes(tx.Data()),
|
||
Nonce: hexutil.Uint64(tx.Nonce()),
|
||
To: tx.To(),
|
||
Value: (*hexutil.Big)(tx.Value()),
|
||
V: (*hexutil.Big)(v),
|
||
R: (*hexutil.Big)(r),
|
||
S: (*hexutil.Big)(s),
|
||
}
|
||
if blockHash != (common.Hash{}) {
|
||
result.BlockHash = &blockHash
|
||
result.BlockNumber = (*hexutil.Big)(new(big.Int).SetUint64(blockNumber))
|
||
result.TransactionIndex = (*hexutil.Uint64)(&index)
|
||
}
|
||
switch tx.Type() {
|
||
case types.LegacyTxType:
|
||
// if a legacy transaction has an EIP-155 chain id, include it explicitly
|
||
if id := tx.ChainId(); id.Sign() != 0 {
|
||
result.ChainID = (*hexutil.Big)(id)
|
||
}
|
||
case types.AccessListTxType:
|
||
al := tx.AccessList()
|
||
result.Accesses = &al
|
||
result.ChainID = (*hexutil.Big)(tx.ChainId())
|
||
case types.DynamicFeeTxType:
|
||
al := tx.AccessList()
|
||
result.Accesses = &al
|
||
result.ChainID = (*hexutil.Big)(tx.ChainId())
|
||
result.GasFeeCap = (*hexutil.Big)(tx.GasFeeCap())
|
||
result.GasTipCap = (*hexutil.Big)(tx.GasTipCap())
|
||
// if the transaction has been mined, compute the effective gas price
|
||
if baseFee != nil && blockHash != (common.Hash{}) {
|
||
// price = min(tip, gasFeeCap - baseFee) + baseFee
|
||
price := math.BigMin(new(big.Int).Add(tx.GasTipCap(), baseFee), tx.GasFeeCap())
|
||
result.GasPrice = (*hexutil.Big)(price)
|
||
} else {
|
||
result.GasPrice = (*hexutil.Big)(tx.GasFeeCap())
|
||
}
|
||
}
|
||
return result
|
||
}
|
||
|
||
// NewRPCPendingTransaction returns a pending transaction that will serialize to the RPC representation
|
||
func NewRPCPendingTransaction(tx *types.Transaction, current *types.Header, config *params.ChainConfig) *RPCTransaction {
|
||
var baseFee *big.Int
|
||
blockNumber := uint64(0)
|
||
if current != nil {
|
||
baseFee = misc.CalcBaseFee(config, current)
|
||
blockNumber = current.Number.Uint64()
|
||
}
|
||
return newRPCTransaction(tx, common.Hash{}, blockNumber, 0, baseFee, config)
|
||
}
|
||
|
||
// newRPCTransactionFromBlockIndex returns a transaction that will serialize to the RPC representation.
|
||
func newRPCTransactionFromBlockIndex(b *types.Block, index uint64, config *params.ChainConfig) *RPCTransaction {
|
||
txs := b.Transactions()
|
||
if index >= uint64(len(txs)) {
|
||
return nil
|
||
}
|
||
return newRPCTransaction(txs[index], b.Hash(), b.NumberU64(), index, b.BaseFee(), config)
|
||
}
|
||
|
||
// newRPCRawTransactionFromBlockIndex returns the bytes of a transaction given a block and a transaction index.
|
||
func newRPCRawTransactionFromBlockIndex(b *types.Block, index uint64) hexutil.Bytes {
|
||
txs := b.Transactions()
|
||
if index >= uint64(len(txs)) {
|
||
return nil
|
||
}
|
||
blob, _ := txs[index].MarshalBinary()
|
||
return blob
|
||
}
|
||
|
||
// newRPCTransactionFromBlockHash returns a transaction that will serialize to the RPC representation.
|
||
func newRPCTransactionFromBlockHash(b *types.Block, hash common.Hash, config *params.ChainConfig) *RPCTransaction {
|
||
for idx, tx := range b.Transactions() {
|
||
if tx.Hash() == hash {
|
||
return newRPCTransactionFromBlockIndex(b, uint64(idx), config)
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// accessListResult returns an optional accesslist
|
||
// Its the result of the `debug_createAccessList` RPC call.
|
||
// It contains an error if the transaction itself failed.
|
||
type accessListResult struct {
|
||
Accesslist *types.AccessList `json:"accessList"`
|
||
Error string `json:"error,omitempty"`
|
||
GasUsed hexutil.Uint64 `json:"gasUsed"`
|
||
}
|
||
|
||
// CreateAccessList creates a EIP-2930 type AccessList for the given transaction.
|
||
// Reexec and BlockNrOrHash can be specified to create the accessList on top of a certain state.
|
||
func (s *BlockChainAPI) CreateAccessList(ctx context.Context, args TransactionArgs, blockNrOrHash *rpc.BlockNumberOrHash) (*accessListResult, error) {
|
||
bNrOrHash := rpc.BlockNumberOrHashWithNumber(rpc.PendingBlockNumber)
|
||
if blockNrOrHash != nil {
|
||
bNrOrHash = *blockNrOrHash
|
||
}
|
||
acl, gasUsed, vmerr, err := AccessList(ctx, s.b, bNrOrHash, args)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
result := &accessListResult{Accesslist: &acl, GasUsed: hexutil.Uint64(gasUsed)}
|
||
if vmerr != nil {
|
||
result.Error = vmerr.Error()
|
||
}
|
||
return result, nil
|
||
}
|
||
|
||
// AccessList creates an access list for the given transaction.
|
||
// If the accesslist creation fails an error is returned.
|
||
// If the transaction itself fails, an vmErr is returned.
|
||
func AccessList(ctx context.Context, b Backend, blockNrOrHash rpc.BlockNumberOrHash, args TransactionArgs) (acl types.AccessList, gasUsed uint64, vmErr error, err error) {
|
||
// Retrieve the execution context
|
||
db, header, err := b.StateAndHeaderByNumberOrHash(ctx, blockNrOrHash)
|
||
if db == nil || err != nil {
|
||
return nil, 0, nil, err
|
||
}
|
||
// If the gas amount is not set, default to RPC gas cap.
|
||
if args.Gas == nil {
|
||
tmp := hexutil.Uint64(b.RPCGasCap())
|
||
args.Gas = &tmp
|
||
}
|
||
|
||
// Ensure any missing fields are filled, extract the recipient and input data
|
||
if err := args.setDefaults(ctx, b); err != nil {
|
||
return nil, 0, nil, err
|
||
}
|
||
var to common.Address
|
||
if args.To != nil {
|
||
to = *args.To
|
||
} else {
|
||
to = crypto.CreateAddress(args.from(), uint64(*args.Nonce))
|
||
}
|
||
isPostMerge := header.Difficulty.Cmp(common.Big0) == 0
|
||
// Retrieve the precompiles since they don't need to be added to the access list
|
||
precompiles := vm.ActivePrecompiles(b.ChainConfig().Rules(header.Number, isPostMerge, header.Time))
|
||
|
||
// Create an initial tracer
|
||
prevTracer := logger.NewAccessListTracer(nil, args.from(), to, precompiles)
|
||
if args.AccessList != nil {
|
||
prevTracer = logger.NewAccessListTracer(*args.AccessList, args.from(), to, precompiles)
|
||
}
|
||
for {
|
||
// Retrieve the current access list to expand
|
||
accessList := prevTracer.AccessList()
|
||
log.Trace("Creating access list", "input", accessList)
|
||
|
||
// Copy the original db so we don't modify it
|
||
statedb := db.Copy()
|
||
// Set the accesslist to the last al
|
||
args.AccessList = &accessList
|
||
msg, err := args.ToMessage(b.RPCGasCap(), header.BaseFee)
|
||
if err != nil {
|
||
return nil, 0, nil, err
|
||
}
|
||
|
||
// Apply the transaction with the access list tracer
|
||
tracer := logger.NewAccessListTracer(accessList, args.from(), to, precompiles)
|
||
config := vm.Config{Tracer: tracer, Debug: true, NoBaseFee: true}
|
||
vmenv, _, err := b.GetEVM(ctx, msg, statedb, header, &config)
|
||
if err != nil {
|
||
return nil, 0, nil, err
|
||
}
|
||
res, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(msg.Gas()))
|
||
if err != nil {
|
||
return nil, 0, nil, fmt.Errorf("failed to apply transaction: %v err: %v", args.toTransaction().Hash(), err)
|
||
}
|
||
if tracer.Equal(prevTracer) {
|
||
return accessList, res.UsedGas, res.Err, nil
|
||
}
|
||
prevTracer = tracer
|
||
}
|
||
}
|
||
|
||
// TransactionAPI exposes methods for reading and creating transaction data.
|
||
type TransactionAPI struct {
|
||
b Backend
|
||
nonceLock *AddrLocker
|
||
signer types.Signer
|
||
}
|
||
|
||
// NewTransactionAPI creates a new RPC service with methods for interacting with transactions.
|
||
func NewTransactionAPI(b Backend, nonceLock *AddrLocker) *TransactionAPI {
|
||
// The signer used by the API should always be the 'latest' known one because we expect
|
||
// signers to be backwards-compatible with old transactions.
|
||
signer := types.LatestSigner(b.ChainConfig())
|
||
return &TransactionAPI{b, nonceLock, signer}
|
||
}
|
||
|
||
// GetBlockTransactionCountByNumber returns the number of transactions in the block with the given block number.
|
||
func (s *TransactionAPI) GetBlockTransactionCountByNumber(ctx context.Context, blockNr rpc.BlockNumber) *hexutil.Uint {
|
||
if block, _ := s.b.BlockByNumber(ctx, blockNr); block != nil {
|
||
n := hexutil.Uint(len(block.Transactions()))
|
||
return &n
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetBlockTransactionCountByHash returns the number of transactions in the block with the given hash.
|
||
func (s *TransactionAPI) GetBlockTransactionCountByHash(ctx context.Context, blockHash common.Hash) *hexutil.Uint {
|
||
if block, _ := s.b.BlockByHash(ctx, blockHash); block != nil {
|
||
n := hexutil.Uint(len(block.Transactions()))
|
||
return &n
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetTransactionByBlockNumberAndIndex returns the transaction for the given block number and index.
|
||
func (s *TransactionAPI) GetTransactionByBlockNumberAndIndex(ctx context.Context, blockNr rpc.BlockNumber, index hexutil.Uint) *RPCTransaction {
|
||
if block, _ := s.b.BlockByNumber(ctx, blockNr); block != nil {
|
||
return newRPCTransactionFromBlockIndex(block, uint64(index), s.b.ChainConfig())
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetTransactionByBlockHashAndIndex returns the transaction for the given block hash and index.
|
||
func (s *TransactionAPI) GetTransactionByBlockHashAndIndex(ctx context.Context, blockHash common.Hash, index hexutil.Uint) *RPCTransaction {
|
||
if block, _ := s.b.BlockByHash(ctx, blockHash); block != nil {
|
||
return newRPCTransactionFromBlockIndex(block, uint64(index), s.b.ChainConfig())
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetRawTransactionByBlockNumberAndIndex returns the bytes of the transaction for the given block number and index.
|
||
func (s *TransactionAPI) GetRawTransactionByBlockNumberAndIndex(ctx context.Context, blockNr rpc.BlockNumber, index hexutil.Uint) hexutil.Bytes {
|
||
if block, _ := s.b.BlockByNumber(ctx, blockNr); block != nil {
|
||
return newRPCRawTransactionFromBlockIndex(block, uint64(index))
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetRawTransactionByBlockHashAndIndex returns the bytes of the transaction for the given block hash and index.
|
||
func (s *TransactionAPI) GetRawTransactionByBlockHashAndIndex(ctx context.Context, blockHash common.Hash, index hexutil.Uint) hexutil.Bytes {
|
||
if block, _ := s.b.BlockByHash(ctx, blockHash); block != nil {
|
||
return newRPCRawTransactionFromBlockIndex(block, uint64(index))
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetTransactionCount returns the number of transactions the given address has sent for the given block number
|
||
func (s *TransactionAPI) GetTransactionCount(ctx context.Context, address common.Address, blockNrOrHash rpc.BlockNumberOrHash) (*hexutil.Uint64, error) {
|
||
// Ask transaction pool for the nonce which includes pending transactions
|
||
if blockNr, ok := blockNrOrHash.Number(); ok && blockNr == rpc.PendingBlockNumber {
|
||
nonce, err := s.b.GetPoolNonce(ctx, address)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
return (*hexutil.Uint64)(&nonce), nil
|
||
}
|
||
// Resolve block number and use its state to ask for the nonce
|
||
state, _, err := s.b.StateAndHeaderByNumberOrHash(ctx, blockNrOrHash)
|
||
if state == nil || err != nil {
|
||
return nil, err
|
||
}
|
||
nonce := state.GetNonce(address)
|
||
return (*hexutil.Uint64)(&nonce), state.Error()
|
||
}
|
||
|
||
// GetTransactionByHash returns the transaction for the given hash
|
||
func (s *TransactionAPI) GetTransactionByHash(ctx context.Context, hash common.Hash) (*RPCTransaction, error) {
|
||
// Try to return an already finalized transaction
|
||
tx, blockHash, blockNumber, index, err := s.b.GetTransaction(ctx, hash)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
if tx != nil {
|
||
header, err := s.b.HeaderByHash(ctx, blockHash)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
return newRPCTransaction(tx, blockHash, blockNumber, index, header.BaseFee, s.b.ChainConfig()), nil
|
||
}
|
||
// No finalized transaction, try to retrieve it from the pool
|
||
if tx := s.b.GetPoolTransaction(hash); tx != nil {
|
||
return NewRPCPendingTransaction(tx, s.b.CurrentHeader(), s.b.ChainConfig()), nil
|
||
}
|
||
|
||
// Transaction unknown, return as such
|
||
return nil, nil
|
||
}
|
||
|
||
// GetRawTransactionByHash returns the bytes of the transaction for the given hash.
|
||
func (s *TransactionAPI) GetRawTransactionByHash(ctx context.Context, hash common.Hash) (hexutil.Bytes, error) {
|
||
// Retrieve a finalized transaction, or a pooled otherwise
|
||
tx, _, _, _, err := s.b.GetTransaction(ctx, hash)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
if tx == nil {
|
||
if tx = s.b.GetPoolTransaction(hash); tx == nil {
|
||
// Transaction not found anywhere, abort
|
||
return nil, nil
|
||
}
|
||
}
|
||
// Serialize to RLP and return
|
||
return tx.MarshalBinary()
|
||
}
|
||
|
||
// GetTransactionReceipt returns the transaction receipt for the given transaction hash.
|
||
func (s *TransactionAPI) GetTransactionReceipt(ctx context.Context, hash common.Hash) (map[string]interface{}, error) {
|
||
tx, blockHash, blockNumber, index, err := s.b.GetTransaction(ctx, hash)
|
||
if err != nil {
|
||
// When the transaction doesn't exist, the RPC method should return JSON null
|
||
// as per specification.
|
||
return nil, nil
|
||
}
|
||
receipts, err := s.b.GetReceipts(ctx, blockHash)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
if len(receipts) <= int(index) {
|
||
return nil, nil
|
||
}
|
||
receipt := receipts[index]
|
||
|
||
// Derive the sender.
|
||
bigblock := new(big.Int).SetUint64(blockNumber)
|
||
signer := types.MakeSigner(s.b.ChainConfig(), bigblock)
|
||
from, _ := types.Sender(signer, tx)
|
||
|
||
fields := map[string]interface{}{
|
||
"blockHash": blockHash,
|
||
"blockNumber": hexutil.Uint64(blockNumber),
|
||
"transactionHash": hash,
|
||
"transactionIndex": hexutil.Uint64(index),
|
||
"from": from,
|
||
"to": tx.To(),
|
||
"gasUsed": hexutil.Uint64(receipt.GasUsed),
|
||
"cumulativeGasUsed": hexutil.Uint64(receipt.CumulativeGasUsed),
|
||
"contractAddress": nil,
|
||
"logs": receipt.Logs,
|
||
"logsBloom": receipt.Bloom,
|
||
"type": hexutil.Uint(tx.Type()),
|
||
}
|
||
// Assign the effective gas price paid
|
||
if !s.b.ChainConfig().IsLondon(bigblock) {
|
||
fields["effectiveGasPrice"] = hexutil.Uint64(tx.GasPrice().Uint64())
|
||
} else {
|
||
header, err := s.b.HeaderByHash(ctx, blockHash)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
gasPrice := new(big.Int).Add(header.BaseFee, tx.EffectiveGasTipValue(header.BaseFee))
|
||
fields["effectiveGasPrice"] = hexutil.Uint64(gasPrice.Uint64())
|
||
}
|
||
// Assign receipt status or post state.
|
||
if len(receipt.PostState) > 0 {
|
||
fields["root"] = hexutil.Bytes(receipt.PostState)
|
||
} else {
|
||
fields["status"] = hexutil.Uint(receipt.Status)
|
||
}
|
||
if receipt.Logs == nil {
|
||
fields["logs"] = []*types.Log{}
|
||
}
|
||
// If the ContractAddress is 20 0x0 bytes, assume it is not a contract creation
|
||
if receipt.ContractAddress != (common.Address{}) {
|
||
fields["contractAddress"] = receipt.ContractAddress
|
||
}
|
||
return fields, nil
|
||
}
|
||
|
||
// sign is a helper function that signs a transaction with the private key of the given address.
|
||
func (s *TransactionAPI) sign(addr common.Address, tx *types.Transaction) (*types.Transaction, error) {
|
||
// Look up the wallet containing the requested signer
|
||
account := accounts.Account{Address: addr}
|
||
|
||
wallet, err := s.b.AccountManager().Find(account)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
// Request the wallet to sign the transaction
|
||
return wallet.SignTx(account, tx, s.b.ChainConfig().ChainID)
|
||
}
|
||
|
||
// SubmitTransaction is a helper function that submits tx to txPool and logs a message.
|
||
func SubmitTransaction(ctx context.Context, b Backend, tx *types.Transaction) (common.Hash, error) {
|
||
// If the transaction fee cap is already specified, ensure the
|
||
// fee of the given transaction is _reasonable_.
|
||
if err := checkTxFee(tx.GasPrice(), tx.Gas(), b.RPCTxFeeCap()); err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
if !b.UnprotectedAllowed() && !tx.Protected() {
|
||
// Ensure only eip155 signed transactions are submitted if EIP155Required is set.
|
||
return common.Hash{}, errors.New("only replay-protected (EIP-155) transactions allowed over RPC")
|
||
}
|
||
if err := b.SendTx(ctx, tx); err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
// Print a log with full tx details for manual investigations and interventions
|
||
signer := types.MakeSigner(b.ChainConfig(), b.CurrentBlock().Number())
|
||
from, err := types.Sender(signer, tx)
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
|
||
if tx.To() == nil {
|
||
addr := crypto.CreateAddress(from, tx.Nonce())
|
||
log.Info("Submitted contract creation", "hash", tx.Hash().Hex(), "from", from, "nonce", tx.Nonce(), "contract", addr.Hex(), "value", tx.Value())
|
||
} else {
|
||
log.Info("Submitted transaction", "hash", tx.Hash().Hex(), "from", from, "nonce", tx.Nonce(), "recipient", tx.To(), "value", tx.Value())
|
||
}
|
||
return tx.Hash(), nil
|
||
}
|
||
|
||
// SendTransaction creates a transaction for the given argument, sign it and submit it to the
|
||
// transaction pool.
|
||
func (s *TransactionAPI) SendTransaction(ctx context.Context, args TransactionArgs) (common.Hash, error) {
|
||
// Look up the wallet containing the requested signer
|
||
account := accounts.Account{Address: args.from()}
|
||
|
||
wallet, err := s.b.AccountManager().Find(account)
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
|
||
if args.Nonce == nil {
|
||
// Hold the mutex around signing to prevent concurrent assignment of
|
||
// the same nonce to multiple accounts.
|
||
s.nonceLock.LockAddr(args.from())
|
||
defer s.nonceLock.UnlockAddr(args.from())
|
||
}
|
||
|
||
// Set some sanity defaults and terminate on failure
|
||
if err := args.setDefaults(ctx, s.b); err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
// Assemble the transaction and sign with the wallet
|
||
tx := args.toTransaction()
|
||
|
||
signed, err := wallet.SignTx(account, tx, s.b.ChainConfig().ChainID)
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
return SubmitTransaction(ctx, s.b, signed)
|
||
}
|
||
|
||
// FillTransaction fills the defaults (nonce, gas, gasPrice or 1559 fields)
|
||
// on a given unsigned transaction, and returns it to the caller for further
|
||
// processing (signing + broadcast).
|
||
func (s *TransactionAPI) FillTransaction(ctx context.Context, args TransactionArgs) (*SignTransactionResult, error) {
|
||
// Set some sanity defaults and terminate on failure
|
||
if err := args.setDefaults(ctx, s.b); err != nil {
|
||
return nil, err
|
||
}
|
||
// Assemble the transaction and obtain rlp
|
||
tx := args.toTransaction()
|
||
data, err := tx.MarshalBinary()
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
return &SignTransactionResult{data, tx}, nil
|
||
}
|
||
|
||
// SendRawTransaction will add the signed transaction to the transaction pool.
|
||
// The sender is responsible for signing the transaction and using the correct nonce.
|
||
func (s *TransactionAPI) SendRawTransaction(ctx context.Context, input hexutil.Bytes) (common.Hash, error) {
|
||
tx := new(types.Transaction)
|
||
if err := tx.UnmarshalBinary(input); err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
return SubmitTransaction(ctx, s.b, tx)
|
||
}
|
||
|
||
// Sign calculates an ECDSA signature for:
|
||
// keccak256("\x19Ethereum Signed Message:\n" + len(message) + message).
|
||
//
|
||
// Note, the produced signature conforms to the secp256k1 curve R, S and V values,
|
||
// where the V value will be 27 or 28 for legacy reasons.
|
||
//
|
||
// The account associated with addr must be unlocked.
|
||
//
|
||
// https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_sign
|
||
func (s *TransactionAPI) Sign(addr common.Address, data hexutil.Bytes) (hexutil.Bytes, error) {
|
||
// Look up the wallet containing the requested signer
|
||
account := accounts.Account{Address: addr}
|
||
|
||
wallet, err := s.b.AccountManager().Find(account)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
// Sign the requested hash with the wallet
|
||
signature, err := wallet.SignText(account, data)
|
||
if err == nil {
|
||
signature[64] += 27 // Transform V from 0/1 to 27/28 according to the yellow paper
|
||
}
|
||
return signature, err
|
||
}
|
||
|
||
// SignTransactionResult represents a RLP encoded signed transaction.
|
||
type SignTransactionResult struct {
|
||
Raw hexutil.Bytes `json:"raw"`
|
||
Tx *types.Transaction `json:"tx"`
|
||
}
|
||
|
||
// SignTransaction will sign the given transaction with the from account.
|
||
// The node needs to have the private key of the account corresponding with
|
||
// the given from address and it needs to be unlocked.
|
||
func (s *TransactionAPI) SignTransaction(ctx context.Context, args TransactionArgs) (*SignTransactionResult, error) {
|
||
if args.Gas == nil {
|
||
return nil, fmt.Errorf("gas not specified")
|
||
}
|
||
if args.GasPrice == nil && (args.MaxPriorityFeePerGas == nil || args.MaxFeePerGas == nil) {
|
||
return nil, fmt.Errorf("missing gasPrice or maxFeePerGas/maxPriorityFeePerGas")
|
||
}
|
||
if args.Nonce == nil {
|
||
return nil, fmt.Errorf("nonce not specified")
|
||
}
|
||
if err := args.setDefaults(ctx, s.b); err != nil {
|
||
return nil, err
|
||
}
|
||
// Before actually sign the transaction, ensure the transaction fee is reasonable.
|
||
tx := args.toTransaction()
|
||
if err := checkTxFee(tx.GasPrice(), tx.Gas(), s.b.RPCTxFeeCap()); err != nil {
|
||
return nil, err
|
||
}
|
||
signed, err := s.sign(args.from(), tx)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
data, err := signed.MarshalBinary()
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
return &SignTransactionResult{data, signed}, nil
|
||
}
|
||
|
||
// PendingTransactions returns the transactions that are in the transaction pool
|
||
// and have a from address that is one of the accounts this node manages.
|
||
func (s *TransactionAPI) PendingTransactions() ([]*RPCTransaction, error) {
|
||
pending, err := s.b.GetPoolTransactions()
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
accounts := make(map[common.Address]struct{})
|
||
for _, wallet := range s.b.AccountManager().Wallets() {
|
||
for _, account := range wallet.Accounts() {
|
||
accounts[account.Address] = struct{}{}
|
||
}
|
||
}
|
||
curHeader := s.b.CurrentHeader()
|
||
transactions := make([]*RPCTransaction, 0, len(pending))
|
||
for _, tx := range pending {
|
||
from, _ := types.Sender(s.signer, tx)
|
||
if _, exists := accounts[from]; exists {
|
||
transactions = append(transactions, NewRPCPendingTransaction(tx, curHeader, s.b.ChainConfig()))
|
||
}
|
||
}
|
||
return transactions, nil
|
||
}
|
||
|
||
// Resend accepts an existing transaction and a new gas price and limit. It will remove
|
||
// the given transaction from the pool and reinsert it with the new gas price and limit.
|
||
func (s *TransactionAPI) Resend(ctx context.Context, sendArgs TransactionArgs, gasPrice *hexutil.Big, gasLimit *hexutil.Uint64) (common.Hash, error) {
|
||
if sendArgs.Nonce == nil {
|
||
return common.Hash{}, fmt.Errorf("missing transaction nonce in transaction spec")
|
||
}
|
||
if err := sendArgs.setDefaults(ctx, s.b); err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
matchTx := sendArgs.toTransaction()
|
||
|
||
// Before replacing the old transaction, ensure the _new_ transaction fee is reasonable.
|
||
var price = matchTx.GasPrice()
|
||
if gasPrice != nil {
|
||
price = gasPrice.ToInt()
|
||
}
|
||
var gas = matchTx.Gas()
|
||
if gasLimit != nil {
|
||
gas = uint64(*gasLimit)
|
||
}
|
||
if err := checkTxFee(price, gas, s.b.RPCTxFeeCap()); err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
// Iterate the pending list for replacement
|
||
pending, err := s.b.GetPoolTransactions()
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
for _, p := range pending {
|
||
wantSigHash := s.signer.Hash(matchTx)
|
||
pFrom, err := types.Sender(s.signer, p)
|
||
if err == nil && pFrom == sendArgs.from() && s.signer.Hash(p) == wantSigHash {
|
||
// Match. Re-sign and send the transaction.
|
||
if gasPrice != nil && (*big.Int)(gasPrice).Sign() != 0 {
|
||
sendArgs.GasPrice = gasPrice
|
||
}
|
||
if gasLimit != nil && *gasLimit != 0 {
|
||
sendArgs.Gas = gasLimit
|
||
}
|
||
signedTx, err := s.sign(sendArgs.from(), sendArgs.toTransaction())
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
if err = s.b.SendTx(ctx, signedTx); err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
return signedTx.Hash(), nil
|
||
}
|
||
}
|
||
return common.Hash{}, fmt.Errorf("transaction %#x not found", matchTx.Hash())
|
||
}
|
||
|
||
// DebugAPI is the collection of Ethereum APIs exposed over the debugging
|
||
// namespace.
|
||
type DebugAPI struct {
|
||
b Backend
|
||
}
|
||
|
||
// NewDebugAPI creates a new instance of DebugAPI.
|
||
func NewDebugAPI(b Backend) *DebugAPI {
|
||
return &DebugAPI{b: b}
|
||
}
|
||
|
||
// GetRawHeader retrieves the RLP encoding for a single header.
|
||
func (api *DebugAPI) GetRawHeader(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (hexutil.Bytes, error) {
|
||
var hash common.Hash
|
||
if h, ok := blockNrOrHash.Hash(); ok {
|
||
hash = h
|
||
} else {
|
||
block, err := api.b.BlockByNumberOrHash(ctx, blockNrOrHash)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
hash = block.Hash()
|
||
}
|
||
header, _ := api.b.HeaderByHash(ctx, hash)
|
||
if header == nil {
|
||
return nil, fmt.Errorf("header #%d not found", hash)
|
||
}
|
||
return rlp.EncodeToBytes(header)
|
||
}
|
||
|
||
// GetRawBlock retrieves the RLP encoded for a single block.
|
||
func (api *DebugAPI) GetRawBlock(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (hexutil.Bytes, error) {
|
||
var hash common.Hash
|
||
if h, ok := blockNrOrHash.Hash(); ok {
|
||
hash = h
|
||
} else {
|
||
block, err := api.b.BlockByNumberOrHash(ctx, blockNrOrHash)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
hash = block.Hash()
|
||
}
|
||
block, _ := api.b.BlockByHash(ctx, hash)
|
||
if block == nil {
|
||
return nil, fmt.Errorf("block #%d not found", hash)
|
||
}
|
||
return rlp.EncodeToBytes(block)
|
||
}
|
||
|
||
// GetRawReceipts retrieves the binary-encoded receipts of a single block.
|
||
func (api *DebugAPI) GetRawReceipts(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) ([]hexutil.Bytes, error) {
|
||
var hash common.Hash
|
||
if h, ok := blockNrOrHash.Hash(); ok {
|
||
hash = h
|
||
} else {
|
||
block, err := api.b.BlockByNumberOrHash(ctx, blockNrOrHash)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
hash = block.Hash()
|
||
}
|
||
receipts, err := api.b.GetReceipts(ctx, hash)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
result := make([]hexutil.Bytes, len(receipts))
|
||
for i, receipt := range receipts {
|
||
b, err := receipt.MarshalBinary()
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
result[i] = b
|
||
}
|
||
return result, nil
|
||
}
|
||
|
||
// GetRawTransaction returns the bytes of the transaction for the given hash.
|
||
func (s *DebugAPI) GetRawTransaction(ctx context.Context, hash common.Hash) (hexutil.Bytes, error) {
|
||
// Retrieve a finalized transaction, or a pooled otherwise
|
||
tx, _, _, _, err := s.b.GetTransaction(ctx, hash)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
if tx == nil {
|
||
if tx = s.b.GetPoolTransaction(hash); tx == nil {
|
||
// Transaction not found anywhere, abort
|
||
return nil, nil
|
||
}
|
||
}
|
||
return tx.MarshalBinary()
|
||
}
|
||
|
||
// PrintBlock retrieves a block and returns its pretty printed form.
|
||
func (api *DebugAPI) PrintBlock(ctx context.Context, number uint64) (string, error) {
|
||
block, _ := api.b.BlockByNumber(ctx, rpc.BlockNumber(number))
|
||
if block == nil {
|
||
return "", fmt.Errorf("block #%d not found", number)
|
||
}
|
||
return spew.Sdump(block), nil
|
||
}
|
||
|
||
// SeedHash retrieves the seed hash of a block.
|
||
func (api *DebugAPI) SeedHash(ctx context.Context, number uint64) (string, error) {
|
||
block, _ := api.b.BlockByNumber(ctx, rpc.BlockNumber(number))
|
||
if block == nil {
|
||
return "", fmt.Errorf("block #%d not found", number)
|
||
}
|
||
return fmt.Sprintf("%#x", ethash.SeedHash(number)), nil
|
||
}
|
||
|
||
// ChaindbProperty returns leveldb properties of the key-value database.
|
||
func (api *DebugAPI) ChaindbProperty(property string) (string, error) {
|
||
if property == "" {
|
||
property = "leveldb.stats"
|
||
} else if !strings.HasPrefix(property, "leveldb.") {
|
||
property = "leveldb." + property
|
||
}
|
||
return api.b.ChainDb().Stat(property)
|
||
}
|
||
|
||
// ChaindbCompact flattens the entire key-value database into a single level,
|
||
// removing all unused slots and merging all keys.
|
||
func (api *DebugAPI) ChaindbCompact() error {
|
||
for b := byte(0); b < 255; b++ {
|
||
log.Info("Compacting chain database", "range", fmt.Sprintf("0x%0.2X-0x%0.2X", b, b+1))
|
||
if err := api.b.ChainDb().Compact([]byte{b}, []byte{b + 1}); err != nil {
|
||
log.Error("Database compaction failed", "err", err)
|
||
return err
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// SetHead rewinds the head of the blockchain to a previous block.
|
||
func (api *DebugAPI) SetHead(number hexutil.Uint64) {
|
||
api.b.SetHead(uint64(number))
|
||
}
|
||
|
||
// NetAPI offers network related RPC methods
|
||
type NetAPI struct {
|
||
net *p2p.Server
|
||
networkVersion uint64
|
||
}
|
||
|
||
// NewNetAPI creates a new net API instance.
|
||
func NewNetAPI(net *p2p.Server, networkVersion uint64) *NetAPI {
|
||
return &NetAPI{net, networkVersion}
|
||
}
|
||
|
||
// Listening returns an indication if the node is listening for network connections.
|
||
func (s *NetAPI) Listening() bool {
|
||
return true // always listening
|
||
}
|
||
|
||
// PeerCount returns the number of connected peers
|
||
func (s *NetAPI) PeerCount() hexutil.Uint {
|
||
return hexutil.Uint(s.net.PeerCount())
|
||
}
|
||
|
||
// Version returns the current ethereum protocol version.
|
||
func (s *NetAPI) Version() string {
|
||
return fmt.Sprintf("%d", s.networkVersion)
|
||
}
|
||
|
||
// checkTxFee is an internal function used to check whether the fee of
|
||
// the given transaction is _reasonable_(under the cap).
|
||
func checkTxFee(gasPrice *big.Int, gas uint64, cap float64) error {
|
||
// Short circuit if there is no cap for transaction fee at all.
|
||
if cap == 0 {
|
||
return nil
|
||
}
|
||
feeEth := new(big.Float).Quo(new(big.Float).SetInt(new(big.Int).Mul(gasPrice, new(big.Int).SetUint64(gas))), new(big.Float).SetInt(big.NewInt(params.Ether)))
|
||
feeFloat, _ := feeEth.Float64()
|
||
if feeFloat > cap {
|
||
return fmt.Errorf("tx fee (%.2f ether) exceeds the configured cap (%.2f ether)", feeFloat, cap)
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// toHexSlice creates a slice of hex-strings based on []byte.
|
||
func toHexSlice(b [][]byte) []string {
|
||
r := make([]string, len(b))
|
||
for i := range b {
|
||
r[i] = hexutil.Encode(b[i])
|
||
}
|
||
return r
|
||
}
|