2305 lines
83 KiB
Go
2305 lines
83 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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"maps"
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gomath "math"
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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/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"
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"github.com/ethereum/go-ethereum/consensus/misc/eip1559"
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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/tracing"
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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/gasestimator"
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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/ethereum/go-ethereum/trie"
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"github.com/holiman/uint256"
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"github.com/tyler-smith/go-bip39"
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)
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// estimateGasErrorRatio is the amount of overestimation eth_estimateGas is
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// allowed to produce in order to speed up calculations.
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const estimateGasErrorRatio = 0.015
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var errBlobTxNotSupported = errors.New("signing blob transactions not supported")
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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 (api *EthereumAPI) GasPrice(ctx context.Context) (*hexutil.Big, error) {
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tipcap, err := api.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 := api.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 (api *EthereumAPI) MaxPriorityFeePerGas(ctx context.Context) (*hexutil.Big, error) {
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tipcap, err := api.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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BlobBaseFee []*hexutil.Big `json:"baseFeePerBlobGas,omitempty"`
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BlobGasUsedRatio []float64 `json:"blobGasUsedRatio,omitempty"`
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}
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// FeeHistory returns the fee market history.
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func (api *EthereumAPI) FeeHistory(ctx context.Context, blockCount math.HexOrDecimal64, lastBlock rpc.BlockNumber, rewardPercentiles []float64) (*feeHistoryResult, error) {
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oldest, reward, baseFee, gasUsed, blobBaseFee, blobGasUsed, err := api.b.FeeHistory(ctx, uint64(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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if blobBaseFee != nil {
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results.BlobBaseFee = make([]*hexutil.Big, len(blobBaseFee))
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for i, v := range blobBaseFee {
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results.BlobBaseFee[i] = (*hexutil.Big)(v)
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}
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}
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if blobGasUsed != nil {
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results.BlobGasUsedRatio = blobGasUsed
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}
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return results, nil
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}
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// BlobBaseFee returns the base fee for blob gas at the current head.
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func (api *EthereumAPI) BlobBaseFee(ctx context.Context) *hexutil.Big {
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return (*hexutil.Big)(api.b.BlobBaseFee(ctx))
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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 peers. In case it is synchronizing:
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// - startingBlock: block number this node started to synchronize 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 (api *EthereumAPI) Syncing() (interface{}, error) {
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progress := api.b.SyncProgress()
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// Return not syncing if the synchronisation already completed
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if progress.Done() {
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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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"txIndexFinishedBlocks": hexutil.Uint64(progress.TxIndexFinishedBlocks),
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"txIndexRemainingBlocks": hexutil.Uint64(progress.TxIndexRemainingBlocks),
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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 (api *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 := api.b.TxPoolContent()
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curHeader := api.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, api.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, api.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 (api *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 := api.b.TxPoolContentFrom(addr)
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curHeader := api.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, api.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, api.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 (api *TxPoolAPI) Status() map[string]hexutil.Uint {
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pending, queue := api.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 (api *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 := api.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 (api *EthereumAccountAPI) Accounts() []common.Address {
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return api.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 creates 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 (api *PersonalAccountAPI) ListAccounts() []common.Address {
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return api.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 (api *PersonalAccountAPI) ListWallets() []rawWallet {
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wallets := make([]rawWallet, 0) // return [] instead of nil if empty
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for _, wallet := range api.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 (api *PersonalAccountAPI) OpenWallet(url string, passphrase *string) error {
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wallet, err := api.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 := ""
|
||
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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|
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// DeriveAccount requests an HD wallet to derive a new account, optionally pinning
|
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// it for later reuse.
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func (api *PersonalAccountAPI) DeriveAccount(url string, path string, pin *bool) (accounts.Account, error) {
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wallet, err := api.am.Wallet(url)
|
||
if err != nil {
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||
return accounts.Account{}, err
|
||
}
|
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derivPath, err := accounts.ParseDerivationPath(path)
|
||
if err != nil {
|
||
return accounts.Account{}, err
|
||
}
|
||
if pin == nil {
|
||
pin = new(bool)
|
||
}
|
||
return wallet.Derive(derivPath, *pin)
|
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}
|
||
|
||
// NewAccount will create a new account and returns the address for the new account.
|
||
func (api *PersonalAccountAPI) NewAccount(password string) (common.AddressEIP55, error) {
|
||
ks, err := fetchKeystore(api.am)
|
||
if err != nil {
|
||
return common.AddressEIP55{}, err
|
||
}
|
||
acc, err := ks.NewAccount(password)
|
||
if err == nil {
|
||
addrEIP55 := common.AddressEIP55(acc.Address)
|
||
log.Info("Your new key was generated", "address", addrEIP55.String())
|
||
log.Warn("Please backup your key file!", "path", acc.URL.Path)
|
||
log.Warn("Please remember your password!")
|
||
return addrEIP55, nil
|
||
}
|
||
return common.AddressEIP55{}, err
|
||
}
|
||
|
||
// fetchKeystore retrieves the encrypted keystore from the account manager.
|
||
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 (api *PersonalAccountAPI) ImportRawKey(privkey string, password string) (common.Address, error) {
|
||
key, err := crypto.HexToECDSA(privkey)
|
||
if err != nil {
|
||
return common.Address{}, err
|
||
}
|
||
ks, err := fetchKeystore(api.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 (api *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 api.b.ExtRPCEnabled() && !api.b.AccountManager().Config().InsecureUnlockAllowed {
|
||
return false, errors.New("account unlock with HTTP access is forbidden")
|
||
}
|
||
|
||
const max = uint64(time.Duration(gomath.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(api.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 (api *PersonalAccountAPI) LockAccount(addr common.Address) bool {
|
||
if ks, err := fetchKeystore(api.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 (api *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 := api.am.Find(account)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
// Set some sanity defaults and terminate on failure
|
||
if err := args.setDefaults(ctx, api.b, false); err != nil {
|
||
return nil, err
|
||
}
|
||
// Assemble the transaction and sign with the wallet
|
||
tx := args.ToTransaction(types.LegacyTxType)
|
||
|
||
return wallet.SignTxWithPassphrase(account, passwd, tx, api.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 (api *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.
|
||
api.nonceLock.LockAddr(args.from())
|
||
defer api.nonceLock.UnlockAddr(args.from())
|
||
}
|
||
if args.IsEIP4844() {
|
||
return common.Hash{}, errBlobTxNotSupported
|
||
}
|
||
signed, err := api.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, api.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 (api *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, errors.New("sender not specified")
|
||
}
|
||
if args.Gas == nil {
|
||
return nil, errors.New("gas not specified")
|
||
}
|
||
if args.GasPrice == nil && (args.MaxFeePerGas == nil || args.MaxPriorityFeePerGas == nil) {
|
||
return nil, errors.New("missing gasPrice or maxFeePerGas/maxPriorityFeePerGas")
|
||
}
|
||
if args.IsEIP4844() {
|
||
return nil, errBlobTxNotSupported
|
||
}
|
||
if args.Nonce == nil {
|
||
return nil, errors.New("nonce not specified")
|
||
}
|
||
// Before actually signing the transaction, ensure the transaction fee is reasonable.
|
||
tx := args.ToTransaction(types.LegacyTxType)
|
||
if err := checkTxFee(tx.GasPrice(), tx.Gas(), api.b.RPCTxFeeCap()); err != nil {
|
||
return nil, err
|
||
}
|
||
signed, err := api.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://geth.ethereum.org/docs/interacting-with-geth/rpc/ns-personal#personal-sign
|
||
func (api *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 := api.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://geth.ethereum.org/docs/interacting-with-geth/rpc/ns-personal#personal-ecrecover
|
||
func (api *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{}, errors.New("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 (api *PersonalAccountAPI) InitializeWallet(ctx context.Context, url string) (string, error) {
|
||
wallet, err := api.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 "", errors.New("specified wallet does not support initialization")
|
||
}
|
||
}
|
||
|
||
// Unpair deletes a pairing between wallet and geth.
|
||
func (api *PersonalAccountAPI) Unpair(ctx context.Context, url string, pin string) error {
|
||
wallet, err := api.am.Wallet(url)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
|
||
switch wallet := wallet.(type) {
|
||
case *scwallet.Wallet:
|
||
return wallet.Unpair([]byte(pin))
|
||
default:
|
||
return errors.New("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 (api *BlockChainAPI) BlockNumber() hexutil.Uint64 {
|
||
header, _ := api.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 (api *BlockChainAPI) GetBalance(ctx context.Context, address common.Address, blockNrOrHash rpc.BlockNumberOrHash) (*hexutil.Big, error) {
|
||
state, _, err := api.b.StateAndHeaderByNumberOrHash(ctx, blockNrOrHash)
|
||
if state == nil || err != nil {
|
||
return nil, err
|
||
}
|
||
b := state.GetBalance(address).ToBig()
|
||
return (*hexutil.Big)(b), state.Error()
|
||
}
|
||
|
||
// AccountResult 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"`
|
||
}
|
||
|
||
// proofList implements ethdb.KeyValueWriter and collects the proofs as
|
||
// hex-strings for delivery to rpc-caller.
|
||
type proofList []string
|
||
|
||
func (n *proofList) Put(key []byte, value []byte) error {
|
||
*n = append(*n, hexutil.Encode(value))
|
||
return nil
|
||
}
|
||
|
||
func (n *proofList) Delete(key []byte) error {
|
||
panic("not supported")
|
||
}
|
||
|
||
// GetProof returns the Merkle-proof for a given account and optionally some storage keys.
|
||
func (api *BlockChainAPI) GetProof(ctx context.Context, address common.Address, storageKeys []string, blockNrOrHash rpc.BlockNumberOrHash) (*AccountResult, error) {
|
||
var (
|
||
keys = make([]common.Hash, len(storageKeys))
|
||
keyLengths = make([]int, len(storageKeys))
|
||
storageProof = make([]StorageResult, len(storageKeys))
|
||
)
|
||
// Deserialize all keys. This prevents state access on invalid input.
|
||
for i, hexKey := range storageKeys {
|
||
var err error
|
||
keys[i], keyLengths[i], err = decodeHash(hexKey)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
}
|
||
statedb, header, err := api.b.StateAndHeaderByNumberOrHash(ctx, blockNrOrHash)
|
||
if statedb == nil || err != nil {
|
||
return nil, err
|
||
}
|
||
codeHash := statedb.GetCodeHash(address)
|
||
storageRoot := statedb.GetStorageRoot(address)
|
||
|
||
if len(keys) > 0 {
|
||
var storageTrie state.Trie
|
||
if storageRoot != types.EmptyRootHash && storageRoot != (common.Hash{}) {
|
||
id := trie.StorageTrieID(header.Root, crypto.Keccak256Hash(address.Bytes()), storageRoot)
|
||
st, err := trie.NewStateTrie(id, statedb.Database().TrieDB())
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
storageTrie = st
|
||
}
|
||
// Create the proofs for the storageKeys.
|
||
for i, key := range keys {
|
||
// Output key encoding is a bit special: if the input was a 32-byte hash, it is
|
||
// returned as such. Otherwise, we apply the QUANTITY encoding mandated by the
|
||
// JSON-RPC spec for getProof. This behavior exists to preserve backwards
|
||
// compatibility with older client versions.
|
||
var outputKey string
|
||
if keyLengths[i] != 32 {
|
||
outputKey = hexutil.EncodeBig(key.Big())
|
||
} else {
|
||
outputKey = hexutil.Encode(key[:])
|
||
}
|
||
if storageTrie == nil {
|
||
storageProof[i] = StorageResult{outputKey, &hexutil.Big{}, []string{}}
|
||
continue
|
||
}
|
||
var proof proofList
|
||
if err := storageTrie.Prove(crypto.Keccak256(key.Bytes()), &proof); err != nil {
|
||
return nil, err
|
||
}
|
||
value := (*hexutil.Big)(statedb.GetState(address, key).Big())
|
||
storageProof[i] = StorageResult{outputKey, value, proof}
|
||
}
|
||
}
|
||
// Create the accountProof.
|
||
tr, err := trie.NewStateTrie(trie.StateTrieID(header.Root), statedb.Database().TrieDB())
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
var accountProof proofList
|
||
if err := tr.Prove(crypto.Keccak256(address.Bytes()), &accountProof); err != nil {
|
||
return nil, err
|
||
}
|
||
balance := statedb.GetBalance(address).ToBig()
|
||
return &AccountResult{
|
||
Address: address,
|
||
AccountProof: accountProof,
|
||
Balance: (*hexutil.Big)(balance),
|
||
CodeHash: codeHash,
|
||
Nonce: hexutil.Uint64(statedb.GetNonce(address)),
|
||
StorageHash: storageRoot,
|
||
StorageProof: storageProof,
|
||
}, statedb.Error()
|
||
}
|
||
|
||
// decodeHash parses a hex-encoded 32-byte hash. The input may optionally
|
||
// be prefixed by 0x and can have a byte length up to 32.
|
||
func decodeHash(s string) (h common.Hash, inputLength int, err 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{}, 0, errors.New("hex string invalid")
|
||
}
|
||
if len(b) > 32 {
|
||
return common.Hash{}, len(b), errors.New("hex string too long, want at most 32 bytes")
|
||
}
|
||
return common.BytesToHash(b), len(b), nil
|
||
}
|
||
|
||
// GetHeaderByNumber returns the requested canonical block header.
|
||
// - When blockNr is -1 the chain pending header is returned.
|
||
// - When blockNr is -2 the chain latest header is returned.
|
||
// - When blockNr is -3 the chain finalized header is returned.
|
||
// - When blockNr is -4 the chain safe header is returned.
|
||
func (api *BlockChainAPI) GetHeaderByNumber(ctx context.Context, number rpc.BlockNumber) (map[string]interface{}, error) {
|
||
header, err := api.b.HeaderByNumber(ctx, number)
|
||
if header != nil && err == nil {
|
||
response := RPCMarshalHeader(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 (api *BlockChainAPI) GetHeaderByHash(ctx context.Context, hash common.Hash) map[string]interface{} {
|
||
header, _ := api.b.HeaderByHash(ctx, hash)
|
||
if header != nil {
|
||
return RPCMarshalHeader(header)
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetBlockByNumber returns the requested canonical block.
|
||
// - When blockNr is -1 the chain pending block is returned.
|
||
// - When blockNr is -2 the chain latest block is returned.
|
||
// - When blockNr is -3 the chain finalized block is returned.
|
||
// - When blockNr is -4 the chain safe block is returned.
|
||
// - When fullTx is true all transactions in the block are returned, otherwise
|
||
// only the transaction hash is returned.
|
||
func (api *BlockChainAPI) GetBlockByNumber(ctx context.Context, number rpc.BlockNumber, fullTx bool) (map[string]interface{}, error) {
|
||
block, err := api.b.BlockByNumber(ctx, number)
|
||
if block != nil && err == nil {
|
||
response := RPCMarshalBlock(block, true, fullTx, api.b.ChainConfig())
|
||
if number == rpc.PendingBlockNumber {
|
||
// Pending blocks need to nil out a few fields
|
||
for _, field := range []string{"hash", "nonce", "miner"} {
|
||
response[field] = nil
|
||
}
|
||
}
|
||
return response, nil
|
||
}
|
||
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 (api *BlockChainAPI) GetBlockByHash(ctx context.Context, hash common.Hash, fullTx bool) (map[string]interface{}, error) {
|
||
block, err := api.b.BlockByHash(ctx, hash)
|
||
if block != nil {
|
||
return RPCMarshalBlock(block, true, fullTx, api.b.ChainConfig()), nil
|
||
}
|
||
return nil, err
|
||
}
|
||
|
||
// GetUncleByBlockNumberAndIndex returns the uncle block for the given block hash and index.
|
||
func (api *BlockChainAPI) GetUncleByBlockNumberAndIndex(ctx context.Context, blockNr rpc.BlockNumber, index hexutil.Uint) (map[string]interface{}, error) {
|
||
block, err := api.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 RPCMarshalBlock(block, false, false, api.b.ChainConfig()), nil
|
||
}
|
||
return nil, err
|
||
}
|
||
|
||
// GetUncleByBlockHashAndIndex returns the uncle block for the given block hash and index.
|
||
func (api *BlockChainAPI) GetUncleByBlockHashAndIndex(ctx context.Context, blockHash common.Hash, index hexutil.Uint) (map[string]interface{}, error) {
|
||
block, err := api.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 RPCMarshalBlock(block, false, false, api.b.ChainConfig()), nil
|
||
}
|
||
return nil, err
|
||
}
|
||
|
||
// GetUncleCountByBlockNumber returns number of uncles in the block for the given block number
|
||
func (api *BlockChainAPI) GetUncleCountByBlockNumber(ctx context.Context, blockNr rpc.BlockNumber) *hexutil.Uint {
|
||
if block, _ := api.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 (api *BlockChainAPI) GetUncleCountByBlockHash(ctx context.Context, blockHash common.Hash) *hexutil.Uint {
|
||
if block, _ := api.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 (api *BlockChainAPI) GetCode(ctx context.Context, address common.Address, blockNrOrHash rpc.BlockNumberOrHash) (hexutil.Bytes, error) {
|
||
state, _, err := api.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 (api *BlockChainAPI) GetStorageAt(ctx context.Context, address common.Address, hexKey string, blockNrOrHash rpc.BlockNumberOrHash) (hexutil.Bytes, error) {
|
||
state, _, err := api.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()
|
||
}
|
||
|
||
// GetBlockReceipts returns the block receipts for the given block hash or number or tag.
|
||
func (api *BlockChainAPI) GetBlockReceipts(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) ([]map[string]interface{}, error) {
|
||
block, err := api.b.BlockByNumberOrHash(ctx, blockNrOrHash)
|
||
if block == nil || err != nil {
|
||
// When the block doesn't exist, the RPC method should return JSON null
|
||
// as per specification.
|
||
return nil, nil
|
||
}
|
||
receipts, err := api.b.GetReceipts(ctx, block.Hash())
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
txs := block.Transactions()
|
||
if len(txs) != len(receipts) {
|
||
return nil, fmt.Errorf("receipts length mismatch: %d vs %d", len(txs), len(receipts))
|
||
}
|
||
|
||
// Derive the sender.
|
||
signer := types.MakeSigner(api.b.ChainConfig(), block.Number(), block.Time())
|
||
|
||
result := make([]map[string]interface{}, len(receipts))
|
||
for i, receipt := range receipts {
|
||
result[i] = marshalReceipt(receipt, block.Hash(), block.NumberU64(), signer, txs[i], i)
|
||
}
|
||
|
||
return result, nil
|
||
}
|
||
|
||
// 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 stateDiff 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"`
|
||
MovePrecompileTo *common.Address `json:"movePrecompileToAddress"`
|
||
}
|
||
|
||
// StateOverride is the collection of overridden accounts.
|
||
type StateOverride map[common.Address]OverrideAccount
|
||
|
||
func (diff *StateOverride) has(address common.Address) bool {
|
||
_, ok := (*diff)[address]
|
||
return ok
|
||
}
|
||
|
||
// Apply overrides the fields of specified accounts into the given state.
|
||
func (diff *StateOverride) Apply(statedb *state.StateDB, precompiles vm.PrecompiledContracts) error {
|
||
if diff == nil {
|
||
return nil
|
||
}
|
||
// Tracks destinations of precompiles that were moved.
|
||
dirtyAddrs := make(map[common.Address]struct{})
|
||
for addr, account := range *diff {
|
||
// If a precompile was moved to this address already, it can't be overridden.
|
||
if _, ok := dirtyAddrs[addr]; ok {
|
||
return fmt.Errorf("account %s has already been overridden by a precompile", addr.Hex())
|
||
}
|
||
p, isPrecompile := precompiles[addr]
|
||
// The MoveTo feature makes it possible to move a precompile
|
||
// code to another address. If the target address is another precompile
|
||
// the code for the latter is lost for this session.
|
||
// Note the destination account is not cleared upon move.
|
||
if account.MovePrecompileTo != nil {
|
||
if !isPrecompile {
|
||
return fmt.Errorf("account %s is not a precompile", addr.Hex())
|
||
}
|
||
// Refuse to move a precompile to an address that has been
|
||
// or will be overridden.
|
||
if diff.has(*account.MovePrecompileTo) {
|
||
return fmt.Errorf("account %s is already overridden", account.MovePrecompileTo.Hex())
|
||
}
|
||
precompiles[*account.MovePrecompileTo] = p
|
||
dirtyAddrs[*account.MovePrecompileTo] = struct{}{}
|
||
}
|
||
if isPrecompile {
|
||
delete(precompiles, addr)
|
||
}
|
||
// Override account nonce.
|
||
if account.Nonce != nil {
|
||
statedb.SetNonce(addr, uint64(*account.Nonce))
|
||
}
|
||
// Override account(contract) code.
|
||
if account.Code != nil {
|
||
statedb.SetCode(addr, *account.Code)
|
||
}
|
||
// Override account balance.
|
||
if account.Balance != nil {
|
||
u256Balance, _ := uint256.FromBig((*big.Int)(account.Balance))
|
||
statedb.SetBalance(addr, u256Balance, tracing.BalanceChangeUnspecified)
|
||
}
|
||
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 {
|
||
statedb.SetStorage(addr, account.State)
|
||
}
|
||
// Apply state diff into specified accounts.
|
||
if account.StateDiff != nil {
|
||
for key, value := range account.StateDiff {
|
||
statedb.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.
|
||
statedb.Finalise(false)
|
||
return nil
|
||
}
|
||
|
||
// BlockOverrides is a set of header fields to override.
|
||
type BlockOverrides struct {
|
||
Number *hexutil.Big
|
||
Difficulty *hexutil.Big // No-op if we're simulating post-merge calls.
|
||
Time *hexutil.Uint64
|
||
GasLimit *hexutil.Uint64
|
||
FeeRecipient *common.Address
|
||
PrevRandao *common.Hash
|
||
BaseFeePerGas *hexutil.Big
|
||
BlobBaseFee *hexutil.Big
|
||
}
|
||
|
||
// Apply overrides the given header fields into the given block context.
|
||
func (o *BlockOverrides) Apply(blockCtx *vm.BlockContext) {
|
||
if o == nil {
|
||
return
|
||
}
|
||
if o.Number != nil {
|
||
blockCtx.BlockNumber = o.Number.ToInt()
|
||
}
|
||
if o.Difficulty != nil {
|
||
blockCtx.Difficulty = o.Difficulty.ToInt()
|
||
}
|
||
if o.Time != nil {
|
||
blockCtx.Time = uint64(*o.Time)
|
||
}
|
||
if o.GasLimit != nil {
|
||
blockCtx.GasLimit = uint64(*o.GasLimit)
|
||
}
|
||
if o.FeeRecipient != nil {
|
||
blockCtx.Coinbase = *o.FeeRecipient
|
||
}
|
||
if o.PrevRandao != nil {
|
||
blockCtx.Random = o.PrevRandao
|
||
}
|
||
if o.BaseFeePerGas != nil {
|
||
blockCtx.BaseFee = o.BaseFeePerGas.ToInt()
|
||
}
|
||
if o.BlobBaseFee != nil {
|
||
blockCtx.BlobBaseFee = o.BlobBaseFee.ToInt()
|
||
}
|
||
}
|
||
|
||
// MakeHeader returns a new header object with the overridden
|
||
// fields.
|
||
// Note: MakeHeader ignores BlobBaseFee if set. That's because
|
||
// header has no such field.
|
||
func (o *BlockOverrides) MakeHeader(header *types.Header) *types.Header {
|
||
if o == nil {
|
||
return header
|
||
}
|
||
h := types.CopyHeader(header)
|
||
if o.Number != nil {
|
||
h.Number = o.Number.ToInt()
|
||
}
|
||
if o.Difficulty != nil {
|
||
h.Difficulty = o.Difficulty.ToInt()
|
||
}
|
||
if o.Time != nil {
|
||
h.Time = uint64(*o.Time)
|
||
}
|
||
if o.GasLimit != nil {
|
||
h.GasLimit = uint64(*o.GasLimit)
|
||
}
|
||
if o.FeeRecipient != nil {
|
||
h.Coinbase = *o.FeeRecipient
|
||
}
|
||
if o.PrevRandao != nil {
|
||
h.MixDigest = *o.PrevRandao
|
||
}
|
||
if o.BaseFeePerGas != nil {
|
||
h.BaseFee = o.BaseFeePerGas.ToInt()
|
||
}
|
||
return h
|
||
}
|
||
|
||
// ChainContextBackend provides methods required to implement ChainContext.
|
||
type ChainContextBackend interface {
|
||
Engine() consensus.Engine
|
||
HeaderByNumber(context.Context, rpc.BlockNumber) (*types.Header, error)
|
||
}
|
||
|
||
// ChainContext is an implementation of core.ChainContext. It's main use-case
|
||
// is instantiating a vm.BlockContext without having access to the BlockChain object.
|
||
type ChainContext struct {
|
||
b ChainContextBackend
|
||
ctx context.Context
|
||
}
|
||
|
||
// NewChainContext creates a new ChainContext object.
|
||
func NewChainContext(ctx context.Context, backend ChainContextBackend) *ChainContext {
|
||
return &ChainContext{ctx: ctx, b: backend}
|
||
}
|
||
|
||
func (context *ChainContext) Engine() consensus.Engine {
|
||
return context.b.Engine()
|
||
}
|
||
|
||
func (context *ChainContext) GetHeader(hash common.Hash, number uint64) *types.Header {
|
||
// This method is called to get the hash for a block number when executing the BLOCKHASH
|
||
// opcode. Hence no need to search for non-canonical blocks.
|
||
header, err := context.b.HeaderByNumber(context.ctx, rpc.BlockNumber(number))
|
||
if err != nil || header.Hash() != hash {
|
||
return nil
|
||
}
|
||
return header
|
||
}
|
||
|
||
func doCall(ctx context.Context, b Backend, args TransactionArgs, state *state.StateDB, header *types.Header, overrides *StateOverride, blockOverrides *BlockOverrides, timeout time.Duration, globalGasCap uint64) (*core.ExecutionResult, error) {
|
||
blockCtx := core.NewEVMBlockContext(header, NewChainContext(ctx, b), nil)
|
||
if blockOverrides != nil {
|
||
blockOverrides.Apply(&blockCtx)
|
||
}
|
||
rules := b.ChainConfig().Rules(blockCtx.BlockNumber, blockCtx.Random != nil, blockCtx.Time)
|
||
precompiles := maps.Clone(vm.ActivePrecompiledContracts(rules))
|
||
if err := overrides.Apply(state, precompiles); 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()
|
||
gp := new(core.GasPool)
|
||
if globalGasCap == 0 {
|
||
gp.AddGas(gomath.MaxUint64)
|
||
} else {
|
||
gp.AddGas(globalGasCap)
|
||
}
|
||
return applyMessage(ctx, b, args, state, header, timeout, gp, &blockCtx, &vm.Config{NoBaseFee: true}, precompiles, true)
|
||
}
|
||
|
||
func applyMessage(ctx context.Context, b Backend, args TransactionArgs, state *state.StateDB, header *types.Header, timeout time.Duration, gp *core.GasPool, blockContext *vm.BlockContext, vmConfig *vm.Config, precompiles vm.PrecompiledContracts, skipChecks bool) (*core.ExecutionResult, error) {
|
||
// Get a new instance of the EVM.
|
||
if err := args.CallDefaults(gp.Gas(), blockContext.BaseFee, b.ChainConfig().ChainID); err != nil {
|
||
return nil, err
|
||
}
|
||
msg := args.ToMessage(header.BaseFee, skipChecks, skipChecks)
|
||
// Lower the basefee to 0 to avoid breaking EVM
|
||
// invariants (basefee < feecap).
|
||
if msg.GasPrice.Sign() == 0 {
|
||
blockContext.BaseFee = new(big.Int)
|
||
}
|
||
if msg.BlobGasFeeCap != nil && msg.BlobGasFeeCap.BitLen() == 0 {
|
||
blockContext.BlobBaseFee = new(big.Int)
|
||
}
|
||
evm := b.GetEVM(ctx, msg, state, header, vmConfig, blockContext)
|
||
if precompiles != nil {
|
||
evm.SetPrecompiles(precompiles)
|
||
}
|
||
|
||
return applyMessageWithEVM(ctx, evm, msg, state, timeout, gp)
|
||
}
|
||
|
||
func applyMessageWithEVM(ctx context.Context, evm *vm.EVM, msg *core.Message, state *state.StateDB, timeout time.Duration, gp *core.GasPool) (*core.ExecutionResult, error) {
|
||
// 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.
|
||
result, err := core.ApplyMessage(evm, msg, gp)
|
||
if err := state.Error(); 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.GasLimit)
|
||
}
|
||
return result, nil
|
||
}
|
||
|
||
func DoCall(ctx context.Context, b Backend, args TransactionArgs, blockNrOrHash rpc.BlockNumberOrHash, overrides *StateOverride, blockOverrides *BlockOverrides, 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
|
||
}
|
||
return doCall(ctx, b, args, state, header, overrides, blockOverrides, timeout, globalGasCap)
|
||
}
|
||
|
||
// 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 (api *BlockChainAPI) Call(ctx context.Context, args TransactionArgs, blockNrOrHash *rpc.BlockNumberOrHash, overrides *StateOverride, blockOverrides *BlockOverrides) (hexutil.Bytes, error) {
|
||
if blockNrOrHash == nil {
|
||
latest := rpc.BlockNumberOrHashWithNumber(rpc.LatestBlockNumber)
|
||
blockNrOrHash = &latest
|
||
}
|
||
result, err := DoCall(ctx, api.b, args, *blockNrOrHash, overrides, blockOverrides, api.b.RPCEVMTimeout(), api.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.Revert())
|
||
}
|
||
return result.Return(), result.Err
|
||
}
|
||
|
||
// SimulateV1 executes series of transactions on top of a base state.
|
||
// The transactions are packed into blocks. For each block, block header
|
||
// fields can be overridden. The state can also be overridden prior to
|
||
// execution of each block.
|
||
//
|
||
// Note, this function doesn't make any changes in the state/blockchain and is
|
||
// useful to execute and retrieve values.
|
||
func (api *BlockChainAPI) SimulateV1(ctx context.Context, opts simOpts, blockNrOrHash *rpc.BlockNumberOrHash) ([]map[string]interface{}, error) {
|
||
if len(opts.BlockStateCalls) == 0 {
|
||
return nil, &invalidParamsError{message: "empty input"}
|
||
} else if len(opts.BlockStateCalls) > maxSimulateBlocks {
|
||
return nil, &clientLimitExceededError{message: "too many blocks"}
|
||
}
|
||
if blockNrOrHash == nil {
|
||
n := rpc.BlockNumberOrHashWithNumber(rpc.LatestBlockNumber)
|
||
blockNrOrHash = &n
|
||
}
|
||
state, base, err := api.b.StateAndHeaderByNumberOrHash(ctx, *blockNrOrHash)
|
||
if state == nil || err != nil {
|
||
return nil, err
|
||
}
|
||
gasCap := api.b.RPCGasCap()
|
||
if gasCap == 0 {
|
||
gasCap = gomath.MaxUint64
|
||
}
|
||
sim := &simulator{
|
||
b: api.b,
|
||
state: state,
|
||
base: base,
|
||
chainConfig: api.b.ChainConfig(),
|
||
// Each tx and all the series of txes shouldn't consume more gas than cap
|
||
gp: new(core.GasPool).AddGas(gasCap),
|
||
traceTransfers: opts.TraceTransfers,
|
||
validate: opts.Validation,
|
||
fullTx: opts.ReturnFullTransactions,
|
||
}
|
||
return sim.execute(ctx, opts.BlockStateCalls)
|
||
}
|
||
|
||
// DoEstimateGas returns the lowest possible gas limit that allows the transaction to run
|
||
// successfully at block `blockNrOrHash`. It returns error if the transaction would revert, or if
|
||
// there are unexpected failures. The gas limit is capped by both `args.Gas` (if non-nil &
|
||
// non-zero) and `gasCap` (if non-zero).
|
||
func DoEstimateGas(ctx context.Context, b Backend, args TransactionArgs, blockNrOrHash rpc.BlockNumberOrHash, overrides *StateOverride, gasCap uint64) (hexutil.Uint64, error) {
|
||
// Retrieve the base state and mutate it with any overrides
|
||
state, header, err := b.StateAndHeaderByNumberOrHash(ctx, blockNrOrHash)
|
||
if state == nil || err != nil {
|
||
return 0, err
|
||
}
|
||
if err := overrides.Apply(state, nil); err != nil {
|
||
return 0, err
|
||
}
|
||
// Construct the gas estimator option from the user input
|
||
opts := &gasestimator.Options{
|
||
Config: b.ChainConfig(),
|
||
Chain: NewChainContext(ctx, b),
|
||
Header: header,
|
||
State: state,
|
||
ErrorRatio: estimateGasErrorRatio,
|
||
}
|
||
// Set any required transaction default, but make sure the gas cap itself is not messed with
|
||
// if it was not specified in the original argument list.
|
||
if args.Gas == nil {
|
||
args.Gas = new(hexutil.Uint64)
|
||
}
|
||
if err := args.CallDefaults(gasCap, header.BaseFee, b.ChainConfig().ChainID); err != nil {
|
||
return 0, err
|
||
}
|
||
call := args.ToMessage(header.BaseFee, true, true)
|
||
|
||
// Run the gas estimation and wrap any revertals into a custom return
|
||
estimate, revert, err := gasestimator.Estimate(ctx, call, opts, gasCap)
|
||
if err != nil {
|
||
if len(revert) > 0 {
|
||
return 0, newRevertError(revert)
|
||
}
|
||
return 0, err
|
||
}
|
||
return hexutil.Uint64(estimate), nil
|
||
}
|
||
|
||
// EstimateGas returns the lowest possible gas limit that allows the transaction to run
|
||
// successfully at block `blockNrOrHash`, or the latest block if `blockNrOrHash` is unspecified. It
|
||
// returns error if the transaction would revert or if there are unexpected failures. The returned
|
||
// value is capped by both `args.Gas` (if non-nil & non-zero) and the backend's RPCGasCap
|
||
// configuration (if non-zero).
|
||
// Note: Required blob gas is not computed in this method.
|
||
func (api *BlockChainAPI) EstimateGas(ctx context.Context, args TransactionArgs, blockNrOrHash *rpc.BlockNumberOrHash, overrides *StateOverride) (hexutil.Uint64, error) {
|
||
bNrOrHash := rpc.BlockNumberOrHashWithNumber(rpc.LatestBlockNumber)
|
||
if blockNrOrHash != nil {
|
||
bNrOrHash = *blockNrOrHash
|
||
}
|
||
return DoEstimateGas(ctx, api.b, args, bNrOrHash, overrides, api.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),
|
||
"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
|
||
}
|
||
if head.BlobGasUsed != nil {
|
||
result["blobGasUsed"] = hexutil.Uint64(*head.BlobGasUsed)
|
||
}
|
||
if head.ExcessBlobGas != nil {
|
||
result["excessBlobGas"] = hexutil.Uint64(*head.ExcessBlobGas)
|
||
}
|
||
if head.ParentBeaconRoot != nil {
|
||
result["parentBeaconBlockRoot"] = head.ParentBeaconRoot
|
||
}
|
||
if head.RequestsHash != nil {
|
||
result["requestsRoot"] = head.RequestsHash
|
||
}
|
||
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{} {
|
||
fields := RPCMarshalHeader(block.Header())
|
||
fields["size"] = hexutil.Uint64(block.Size())
|
||
|
||
if inclTx {
|
||
formatTx := func(idx int, tx *types.Transaction) interface{} {
|
||
return tx.Hash()
|
||
}
|
||
if fullTx {
|
||
formatTx = func(idx int, tx *types.Transaction) interface{} {
|
||
return newRPCTransactionFromBlockIndex(block, uint64(idx), config)
|
||
}
|
||
}
|
||
txs := block.Transactions()
|
||
transactions := make([]interface{}, len(txs))
|
||
for i, tx := range txs {
|
||
transactions[i] = formatTx(i, tx)
|
||
}
|
||
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.Withdrawals() != nil {
|
||
fields["withdrawals"] = block.Withdrawals()
|
||
}
|
||
return fields
|
||
}
|
||
|
||
// 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"`
|
||
MaxFeePerBlobGas *hexutil.Big `json:"maxFeePerBlobGas,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"`
|
||
BlobVersionedHashes []common.Hash `json:"blobVersionedHashes,omitempty"`
|
||
V *hexutil.Big `json:"v"`
|
||
R *hexutil.Big `json:"r"`
|
||
S *hexutil.Big `json:"s"`
|
||
YParity *hexutil.Uint64 `json:"yParity,omitempty"`
|
||
}
|
||
|
||
// 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, blockTime uint64, index uint64, baseFee *big.Int, config *params.ChainConfig) *RPCTransaction {
|
||
signer := types.MakeSigner(config, new(big.Int).SetUint64(blockNumber), blockTime)
|
||
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()
|
||
yparity := hexutil.Uint64(v.Sign())
|
||
result.Accesses = &al
|
||
result.ChainID = (*hexutil.Big)(tx.ChainId())
|
||
result.YParity = &yparity
|
||
|
||
case types.DynamicFeeTxType:
|
||
al := tx.AccessList()
|
||
yparity := hexutil.Uint64(v.Sign())
|
||
result.Accesses = &al
|
||
result.ChainID = (*hexutil.Big)(tx.ChainId())
|
||
result.YParity = &yparity
|
||
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(gasTipCap + baseFee, gasFeeCap)
|
||
result.GasPrice = (*hexutil.Big)(effectiveGasPrice(tx, baseFee))
|
||
} else {
|
||
result.GasPrice = (*hexutil.Big)(tx.GasFeeCap())
|
||
}
|
||
|
||
case types.BlobTxType:
|
||
al := tx.AccessList()
|
||
yparity := hexutil.Uint64(v.Sign())
|
||
result.Accesses = &al
|
||
result.ChainID = (*hexutil.Big)(tx.ChainId())
|
||
result.YParity = &yparity
|
||
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{}) {
|
||
result.GasPrice = (*hexutil.Big)(effectiveGasPrice(tx, baseFee))
|
||
} else {
|
||
result.GasPrice = (*hexutil.Big)(tx.GasFeeCap())
|
||
}
|
||
result.MaxFeePerBlobGas = (*hexutil.Big)(tx.BlobGasFeeCap())
|
||
result.BlobVersionedHashes = tx.BlobHashes()
|
||
}
|
||
return result
|
||
}
|
||
|
||
// effectiveGasPrice computes the transaction gas fee, based on the given basefee value.
|
||
//
|
||
// price = min(gasTipCap + baseFee, gasFeeCap)
|
||
func effectiveGasPrice(tx *types.Transaction, baseFee *big.Int) *big.Int {
|
||
fee := tx.GasTipCap()
|
||
fee = fee.Add(fee, baseFee)
|
||
if tx.GasFeeCapIntCmp(fee) < 0 {
|
||
return tx.GasFeeCap()
|
||
}
|
||
return fee
|
||
}
|
||
|
||
// 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)
|
||
blockTime = uint64(0)
|
||
)
|
||
if current != nil {
|
||
baseFee = eip1559.CalcBaseFee(config, current)
|
||
blockNumber = current.Number.Uint64()
|
||
blockTime = current.Time
|
||
}
|
||
return newRPCTransaction(tx, common.Hash{}, blockNumber, blockTime, 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(), b.Time(), 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
|
||
}
|
||
|
||
// accessListResult returns an optional accesslist
|
||
// It's 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 an 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 (api *BlockChainAPI) CreateAccessList(ctx context.Context, args TransactionArgs, blockNrOrHash *rpc.BlockNumberOrHash) (*accessListResult, error) {
|
||
bNrOrHash := rpc.BlockNumberOrHashWithNumber(rpc.LatestBlockNumber)
|
||
if blockNrOrHash != nil {
|
||
bNrOrHash = *blockNrOrHash
|
||
}
|
||
acl, gasUsed, vmerr, err := AccessList(ctx, api.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
|
||
}
|
||
|
||
// Ensure any missing fields are filled, extract the recipient and input data
|
||
if err := args.setDefaults(ctx, b, true); 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.Sign() == 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 {
|
||
if err := ctx.Err(); err != nil {
|
||
return nil, 0, nil, err
|
||
}
|
||
// 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 := args.ToMessage(header.BaseFee, true, true)
|
||
|
||
// Apply the transaction with the access list tracer
|
||
tracer := logger.NewAccessListTracer(accessList, args.from(), to, precompiles)
|
||
config := vm.Config{Tracer: tracer.Hooks(), NoBaseFee: true}
|
||
vmenv := b.GetEVM(ctx, msg, statedb, header, &config, nil)
|
||
// Lower the basefee to 0 to avoid breaking EVM
|
||
// invariants (basefee < feecap).
|
||
if msg.GasPrice.Sign() == 0 {
|
||
vmenv.Context.BaseFee = new(big.Int)
|
||
}
|
||
if msg.BlobGasFeeCap != nil && msg.BlobGasFeeCap.BitLen() == 0 {
|
||
vmenv.Context.BlobBaseFee = new(big.Int)
|
||
}
|
||
res, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(msg.GasLimit))
|
||
if err != nil {
|
||
return nil, 0, nil, fmt.Errorf("failed to apply transaction: %v err: %v", args.ToTransaction(types.LegacyTxType).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 (api *TransactionAPI) GetBlockTransactionCountByNumber(ctx context.Context, blockNr rpc.BlockNumber) *hexutil.Uint {
|
||
if block, _ := api.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 (api *TransactionAPI) GetBlockTransactionCountByHash(ctx context.Context, blockHash common.Hash) *hexutil.Uint {
|
||
if block, _ := api.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 (api *TransactionAPI) GetTransactionByBlockNumberAndIndex(ctx context.Context, blockNr rpc.BlockNumber, index hexutil.Uint) *RPCTransaction {
|
||
if block, _ := api.b.BlockByNumber(ctx, blockNr); block != nil {
|
||
return newRPCTransactionFromBlockIndex(block, uint64(index), api.b.ChainConfig())
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetTransactionByBlockHashAndIndex returns the transaction for the given block hash and index.
|
||
func (api *TransactionAPI) GetTransactionByBlockHashAndIndex(ctx context.Context, blockHash common.Hash, index hexutil.Uint) *RPCTransaction {
|
||
if block, _ := api.b.BlockByHash(ctx, blockHash); block != nil {
|
||
return newRPCTransactionFromBlockIndex(block, uint64(index), api.b.ChainConfig())
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetRawTransactionByBlockNumberAndIndex returns the bytes of the transaction for the given block number and index.
|
||
func (api *TransactionAPI) GetRawTransactionByBlockNumberAndIndex(ctx context.Context, blockNr rpc.BlockNumber, index hexutil.Uint) hexutil.Bytes {
|
||
if block, _ := api.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 (api *TransactionAPI) GetRawTransactionByBlockHashAndIndex(ctx context.Context, blockHash common.Hash, index hexutil.Uint) hexutil.Bytes {
|
||
if block, _ := api.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 (api *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 := api.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 := api.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 (api *TransactionAPI) GetTransactionByHash(ctx context.Context, hash common.Hash) (*RPCTransaction, error) {
|
||
// Try to return an already finalized transaction
|
||
found, tx, blockHash, blockNumber, index, err := api.b.GetTransaction(ctx, hash)
|
||
if !found {
|
||
// No finalized transaction, try to retrieve it from the pool
|
||
if tx := api.b.GetPoolTransaction(hash); tx != nil {
|
||
return NewRPCPendingTransaction(tx, api.b.CurrentHeader(), api.b.ChainConfig()), nil
|
||
}
|
||
if err == nil {
|
||
return nil, nil
|
||
}
|
||
return nil, NewTxIndexingError()
|
||
}
|
||
header, err := api.b.HeaderByHash(ctx, blockHash)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
return newRPCTransaction(tx, blockHash, blockNumber, header.Time, index, header.BaseFee, api.b.ChainConfig()), nil
|
||
}
|
||
|
||
// GetRawTransactionByHash returns the bytes of the transaction for the given hash.
|
||
func (api *TransactionAPI) GetRawTransactionByHash(ctx context.Context, hash common.Hash) (hexutil.Bytes, error) {
|
||
// Retrieve a finalized transaction, or a pooled otherwise
|
||
found, tx, _, _, _, err := api.b.GetTransaction(ctx, hash)
|
||
if !found {
|
||
if tx = api.b.GetPoolTransaction(hash); tx != nil {
|
||
return tx.MarshalBinary()
|
||
}
|
||
if err == nil {
|
||
return nil, nil
|
||
}
|
||
return nil, NewTxIndexingError()
|
||
}
|
||
return tx.MarshalBinary()
|
||
}
|
||
|
||
// GetTransactionReceipt returns the transaction receipt for the given transaction hash.
|
||
func (api *TransactionAPI) GetTransactionReceipt(ctx context.Context, hash common.Hash) (map[string]interface{}, error) {
|
||
found, tx, blockHash, blockNumber, index, err := api.b.GetTransaction(ctx, hash)
|
||
if err != nil {
|
||
return nil, NewTxIndexingError() // transaction is not fully indexed
|
||
}
|
||
if !found {
|
||
return nil, nil // transaction is not existent or reachable
|
||
}
|
||
header, err := api.b.HeaderByHash(ctx, blockHash)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
receipts, err := api.b.GetReceipts(ctx, blockHash)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
if uint64(len(receipts)) <= index {
|
||
return nil, nil
|
||
}
|
||
receipt := receipts[index]
|
||
|
||
// Derive the sender.
|
||
signer := types.MakeSigner(api.b.ChainConfig(), header.Number, header.Time)
|
||
return marshalReceipt(receipt, blockHash, blockNumber, signer, tx, int(index)), nil
|
||
}
|
||
|
||
// marshalReceipt marshals a transaction receipt into a JSON object.
|
||
func marshalReceipt(receipt *types.Receipt, blockHash common.Hash, blockNumber uint64, signer types.Signer, tx *types.Transaction, txIndex int) map[string]interface{} {
|
||
from, _ := types.Sender(signer, tx)
|
||
|
||
fields := map[string]interface{}{
|
||
"blockHash": blockHash,
|
||
"blockNumber": hexutil.Uint64(blockNumber),
|
||
"transactionHash": tx.Hash(),
|
||
"transactionIndex": hexutil.Uint64(txIndex),
|
||
"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()),
|
||
"effectiveGasPrice": (*hexutil.Big)(receipt.EffectiveGasPrice),
|
||
}
|
||
|
||
// 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 tx.Type() == types.BlobTxType {
|
||
fields["blobGasUsed"] = hexutil.Uint64(receipt.BlobGasUsed)
|
||
fields["blobGasPrice"] = (*hexutil.Big)(receipt.BlobGasPrice)
|
||
}
|
||
|
||
// 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
|
||
}
|
||
|
||
// sign is a helper function that signs a transaction with the private key of the given address.
|
||
func (api *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 := api.b.AccountManager().Find(account)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
// Request the wallet to sign the transaction
|
||
return wallet.SignTx(account, tx, api.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
|
||
head := b.CurrentBlock()
|
||
signer := types.MakeSigner(b.ChainConfig(), head.Number, head.Time)
|
||
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 (api *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 := api.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.
|
||
api.nonceLock.LockAddr(args.from())
|
||
defer api.nonceLock.UnlockAddr(args.from())
|
||
}
|
||
if args.IsEIP4844() {
|
||
return common.Hash{}, errBlobTxNotSupported
|
||
}
|
||
|
||
// Set some sanity defaults and terminate on failure
|
||
if err := args.setDefaults(ctx, api.b, false); err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
// Assemble the transaction and sign with the wallet
|
||
tx := args.ToTransaction(types.LegacyTxType)
|
||
|
||
signed, err := wallet.SignTx(account, tx, api.b.ChainConfig().ChainID)
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
return SubmitTransaction(ctx, api.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 (api *TransactionAPI) FillTransaction(ctx context.Context, args TransactionArgs) (*SignTransactionResult, error) {
|
||
args.blobSidecarAllowed = true
|
||
|
||
// Set some sanity defaults and terminate on failure
|
||
if err := args.setDefaults(ctx, api.b, false); err != nil {
|
||
return nil, err
|
||
}
|
||
// Assemble the transaction and obtain rlp
|
||
tx := args.ToTransaction(types.LegacyTxType)
|
||
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 (api *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, api.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 (api *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 := api.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 (api *TransactionAPI) SignTransaction(ctx context.Context, args TransactionArgs) (*SignTransactionResult, error) {
|
||
args.blobSidecarAllowed = true
|
||
|
||
if args.Gas == nil {
|
||
return nil, errors.New("gas not specified")
|
||
}
|
||
if args.GasPrice == nil && (args.MaxPriorityFeePerGas == nil || args.MaxFeePerGas == nil) {
|
||
return nil, errors.New("missing gasPrice or maxFeePerGas/maxPriorityFeePerGas")
|
||
}
|
||
if args.Nonce == nil {
|
||
return nil, errors.New("nonce not specified")
|
||
}
|
||
if err := args.setDefaults(ctx, api.b, false); err != nil {
|
||
return nil, err
|
||
}
|
||
// Before actually sign the transaction, ensure the transaction fee is reasonable.
|
||
tx := args.ToTransaction(types.LegacyTxType)
|
||
if err := checkTxFee(tx.GasPrice(), tx.Gas(), api.b.RPCTxFeeCap()); err != nil {
|
||
return nil, err
|
||
}
|
||
signed, err := api.sign(args.from(), tx)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
// If the transaction-to-sign was a blob transaction, then the signed one
|
||
// no longer retains the blobs, only the blob hashes. In this step, we need
|
||
// to put back the blob(s).
|
||
if args.IsEIP4844() {
|
||
signed = signed.WithBlobTxSidecar(&types.BlobTxSidecar{
|
||
Blobs: args.Blobs,
|
||
Commitments: args.Commitments,
|
||
Proofs: args.Proofs,
|
||
})
|
||
}
|
||
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 (api *TransactionAPI) PendingTransactions() ([]*RPCTransaction, error) {
|
||
pending, err := api.b.GetPoolTransactions()
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
accounts := make(map[common.Address]struct{})
|
||
for _, wallet := range api.b.AccountManager().Wallets() {
|
||
for _, account := range wallet.Accounts() {
|
||
accounts[account.Address] = struct{}{}
|
||
}
|
||
}
|
||
curHeader := api.b.CurrentHeader()
|
||
transactions := make([]*RPCTransaction, 0, len(pending))
|
||
for _, tx := range pending {
|
||
from, _ := types.Sender(api.signer, tx)
|
||
if _, exists := accounts[from]; exists {
|
||
transactions = append(transactions, NewRPCPendingTransaction(tx, curHeader, api.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 (api *TransactionAPI) Resend(ctx context.Context, sendArgs TransactionArgs, gasPrice *hexutil.Big, gasLimit *hexutil.Uint64) (common.Hash, error) {
|
||
if sendArgs.Nonce == nil {
|
||
return common.Hash{}, errors.New("missing transaction nonce in transaction spec")
|
||
}
|
||
if err := sendArgs.setDefaults(ctx, api.b, false); err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
matchTx := sendArgs.ToTransaction(types.LegacyTxType)
|
||
|
||
// 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, api.b.RPCTxFeeCap()); err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
// Iterate the pending list for replacement
|
||
pending, err := api.b.GetPoolTransactions()
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
for _, p := range pending {
|
||
wantSigHash := api.signer.Hash(matchTx)
|
||
pFrom, err := types.Sender(api.signer, p)
|
||
if err == nil && pFrom == sendArgs.from() && api.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 := api.sign(sendArgs.from(), sendArgs.ToTransaction(types.LegacyTxType))
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
if err = api.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 (api *DebugAPI) GetRawTransaction(ctx context.Context, hash common.Hash) (hexutil.Bytes, error) {
|
||
// Retrieve a finalized transaction, or a pooled otherwise
|
||
found, tx, _, _, _, err := api.b.GetTransaction(ctx, hash)
|
||
if !found {
|
||
if tx = api.b.GetPoolTransaction(hash); tx != nil {
|
||
return tx.MarshalBinary()
|
||
}
|
||
if err == nil {
|
||
return nil, nil
|
||
}
|
||
return nil, NewTxIndexingError()
|
||
}
|
||
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
|
||
}
|
||
|
||
// ChaindbProperty returns leveldb properties of the key-value database.
|
||
func (api *DebugAPI) ChaindbProperty() (string, error) {
|
||
return api.b.ChainDb().Stat()
|
||
}
|
||
|
||
// ChaindbCompact flattens the entire key-value database into a single level,
|
||
// removing all unused slots and merging all keys.
|
||
func (api *DebugAPI) ChaindbCompact() error {
|
||
cstart := time.Now()
|
||
for b := 0; b <= 255; b++ {
|
||
var (
|
||
start = []byte{byte(b)}
|
||
end = []byte{byte(b + 1)}
|
||
)
|
||
if b == 255 {
|
||
end = nil
|
||
}
|
||
log.Info("Compacting database", "range", fmt.Sprintf("%#X-%#X", start, end), "elapsed", common.PrettyDuration(time.Since(cstart)))
|
||
if err := api.b.ChainDb().Compact(start, end); 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 (api *NetAPI) Listening() bool {
|
||
return true // always listening
|
||
}
|
||
|
||
// PeerCount returns the number of connected peers
|
||
func (api *NetAPI) PeerCount() hexutil.Uint {
|
||
return hexutil.Uint(api.net.PeerCount())
|
||
}
|
||
|
||
// Version returns the current ethereum protocol version.
|
||
func (api *NetAPI) Version() string {
|
||
return fmt.Sprintf("%d", api.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
|
||
}
|