forked from cerc-io/plugeth
5c8fe28b72
* common: remove CurrencyToString Move denomination values to params instead. * common: delete dead code * common: move big integer operations to common/math This commit consolidates all big integer operations into common/math and adds tests and documentation. There should be no change in semantics for BigPow, BigMin, BigMax, S256, U256, Exp and their behaviour is now locked in by tests. The BigD, BytesToBig and Bytes2Big functions don't provide additional value, all uses are replaced by new(big.Int).SetBytes(). BigToBytes is now called PaddedBigBytes, its minimum output size parameter is now specified as the number of bytes instead of bits. The single use of this function is in the EVM's MSTORE instruction. Big and String2Big are replaced by ParseBig, which is slightly stricter. It previously accepted leading zeros for hexadecimal inputs but treated decimal inputs as octal if a leading zero digit was present. ParseUint64 is used in places where String2Big was used to decode a uint64. The new functions MustParseBig and MustParseUint64 are now used in many places where parsing errors were previously ignored. * common: delete unused big integer variables * accounts/abi: replace uses of BytesToBig with use of encoding/binary * common: remove BytesToBig * common: remove Bytes2Big * common: remove BigTrue * cmd/utils: add BigFlag and use it for error-checked integer flags While here, remove environment variable processing for DirectoryFlag because we don't use it. * core: add missing error checks in genesis block parser * common: remove String2Big * cmd/evm: use utils.BigFlag * common/math: check for 256 bit overflow in ParseBig This is supposed to prevent silent overflow/truncation of values in the genesis block JSON. Without this check, a genesis block that set a balance larger than 256 bits would lead to weird behaviour in the VM. * cmd/utils: fixup import
1466 lines
51 KiB
Go
1466 lines
51 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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"bytes"
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"encoding/hex"
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"errors"
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"fmt"
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"math/big"
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"strings"
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"time"
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"github.com/ethereum/ethash"
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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/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/core"
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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/ethdb"
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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/syndtr/goleveldb/leveldb"
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"github.com/syndtr/goleveldb/leveldb/util"
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"golang.org/x/net/context"
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)
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const (
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defaultGas = 90000
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defaultGasPrice = 50 * params.Shannon
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emptyHex = "0x"
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)
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// PublicEthereumAPI provides an API to access Ethereum related information.
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// It offers only methods that operate on public data that is freely available to anyone.
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type PublicEthereumAPI struct {
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b Backend
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}
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// NewPublicEthereumAPI creates a new Etheruem protocol API.
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func NewPublicEthereumAPI(b Backend) *PublicEthereumAPI {
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return &PublicEthereumAPI{b}
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}
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// GasPrice returns a suggestion for a gas price.
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func (s *PublicEthereumAPI) GasPrice(ctx context.Context) (*big.Int, error) {
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return s.b.SuggestPrice(ctx)
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}
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// ProtocolVersion returns the current Ethereum protocol version this node supports
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func (s *PublicEthereumAPI) ProtocolVersion() hexutil.Uint {
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return hexutil.Uint(s.b.ProtocolVersion())
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}
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// Syncing returns false in case the node is currently not syncing with the network. It can be up to date or has not
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// yet received the latest block headers from its pears. In case it is synchronizing:
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// - startingBlock: block number this node started to synchronise from
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// - currentBlock: block number this node is currently importing
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// - highestBlock: block number of the highest block header this node has received from peers
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// - pulledStates: number of state entries processed until now
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// - knownStates: number of known state entries that still need to be pulled
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func (s *PublicEthereumAPI) Syncing() (interface{}, error) {
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progress := s.b.Downloader().Progress()
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// Return not syncing if the synchronisation already completed
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if progress.CurrentBlock >= progress.HighestBlock {
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return false, nil
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}
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// Otherwise gather the block sync stats
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return map[string]interface{}{
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"startingBlock": hexutil.Uint64(progress.StartingBlock),
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"currentBlock": hexutil.Uint64(progress.CurrentBlock),
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"highestBlock": hexutil.Uint64(progress.HighestBlock),
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"pulledStates": hexutil.Uint64(progress.PulledStates),
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"knownStates": hexutil.Uint64(progress.KnownStates),
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}, nil
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}
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// PublicTxPoolAPI offers and API for the transaction pool. It only operates on data that is non confidential.
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type PublicTxPoolAPI struct {
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b Backend
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}
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// NewPublicTxPoolAPI creates a new tx pool service that gives information about the transaction pool.
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func NewPublicTxPoolAPI(b Backend) *PublicTxPoolAPI {
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return &PublicTxPoolAPI{b}
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}
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// Content returns the transactions contained within the transaction pool.
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func (s *PublicTxPoolAPI) Content() map[string]map[string]map[string]*RPCTransaction {
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content := map[string]map[string]map[string]*RPCTransaction{
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"pending": make(map[string]map[string]*RPCTransaction),
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"queued": make(map[string]map[string]*RPCTransaction),
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}
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pending, queue := s.b.TxPoolContent()
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// 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 nonce, tx := range txs {
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dump[fmt.Sprintf("%d", nonce)] = newRPCPendingTransaction(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]*RPCTransaction)
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for nonce, tx := range txs {
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dump[fmt.Sprintf("%d", nonce)] = newRPCPendingTransaction(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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// Status returns the number of pending and queued transaction in the pool.
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func (s *PublicTxPoolAPI) Status() map[string]hexutil.Uint {
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pending, queue := s.b.Stats()
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return map[string]hexutil.Uint{
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"pending": hexutil.Uint(pending),
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"queued": hexutil.Uint(queue),
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}
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}
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// Inspect retrieves the content of the transaction pool and flattens it into an
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// easily inspectable list.
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func (s *PublicTxPoolAPI) Inspect() map[string]map[string]map[string]string {
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content := map[string]map[string]map[string]string{
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"pending": make(map[string]map[string]string),
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"queued": make(map[string]map[string]string),
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}
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pending, queue := s.b.TxPoolContent()
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// Define a formatter to flatten a transaction into a string
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var format = func(tx *types.Transaction) string {
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if to := tx.To(); to != nil {
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return fmt.Sprintf("%s: %v wei + %v × %v gas", 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 × %v gas", 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 nonce, tx := range txs {
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dump[fmt.Sprintf("%d", 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 nonce, tx := range txs {
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dump[fmt.Sprintf("%d", 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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// PublicAccountAPI 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 PublicAccountAPI struct {
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am *accounts.Manager
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}
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// NewPublicAccountAPI creates a new PublicAccountAPI.
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func NewPublicAccountAPI(am *accounts.Manager) *PublicAccountAPI {
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return &PublicAccountAPI{am: am}
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}
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// Accounts returns the collection of accounts this node manages
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func (s *PublicAccountAPI) Accounts() []common.Address {
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var addresses []common.Address
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for _, wallet := range s.am.Wallets() {
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for _, account := range wallet.Accounts() {
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addresses = append(addresses, account.Address)
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}
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}
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return addresses
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}
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// PrivateAccountAPI 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 PrivateAccountAPI struct {
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am *accounts.Manager
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b Backend
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}
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// NewPrivateAccountAPI create a new PrivateAccountAPI.
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func NewPrivateAccountAPI(b Backend) *PrivateAccountAPI {
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return &PrivateAccountAPI{
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am: b.AccountManager(),
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b: b,
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}
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}
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// ListAccounts will return a list of addresses for accounts this node manages.
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func (s *PrivateAccountAPI) ListAccounts() []common.Address {
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var addresses []common.Address
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for _, wallet := range s.am.Wallets() {
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for _, account := range wallet.Accounts() {
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addresses = append(addresses, account.Address)
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}
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}
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return addresses
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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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Accounts []accounts.Account `json:"accounts"`
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}
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// ListWallets will return a list of wallets this node manages.
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func (s *PrivateAccountAPI) ListWallets() []rawWallet {
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var wallets []rawWallet
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for _, wallet := range s.am.Wallets() {
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wallets = append(wallets, rawWallet{
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URL: wallet.URL().String(),
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Status: wallet.Status(),
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Accounts: wallet.Accounts(),
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})
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}
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return wallets
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}
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// DeriveAccount requests a HD wallet to derive a new account, optionally pinning
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// it for later reuse.
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func (s *PrivateAccountAPI) DeriveAccount(url string, path string, pin *bool) (accounts.Account, error) {
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wallet, err := s.am.Wallet(url)
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if err != nil {
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return accounts.Account{}, err
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}
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derivPath, err := accounts.ParseDerivationPath(path)
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if err != nil {
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return accounts.Account{}, err
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}
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if pin == nil {
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pin = new(bool)
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}
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return wallet.Derive(derivPath, *pin)
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}
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// NewAccount will create a new account and returns the address for the new account.
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func (s *PrivateAccountAPI) NewAccount(password string) (common.Address, error) {
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acc, err := fetchKeystore(s.am).NewAccount(password)
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if err == nil {
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return acc.Address, nil
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}
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return common.Address{}, err
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}
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// fetchKeystore retrives the encrypted keystore from the account manager.
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func fetchKeystore(am *accounts.Manager) *keystore.KeyStore {
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return am.Backends(keystore.KeyStoreType)[0].(*keystore.KeyStore)
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}
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// ImportRawKey stores the given hex encoded ECDSA key into the key directory,
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// encrypting it with the passphrase.
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func (s *PrivateAccountAPI) ImportRawKey(privkey string, password string) (common.Address, error) {
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hexkey, err := hex.DecodeString(privkey)
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if err != nil {
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return common.Address{}, err
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}
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acc, err := fetchKeystore(s.am).ImportECDSA(crypto.ToECDSA(hexkey), password)
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return acc.Address, err
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}
|
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|
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// UnlockAccount will unlock the account associated with the given address with
|
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// the given password for duration seconds. If duration is nil it will use a
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// default of 300 seconds. It returns an indication if the account was unlocked.
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func (s *PrivateAccountAPI) UnlockAccount(addr common.Address, password string, duration *uint64) (bool, error) {
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const max = uint64(time.Duration(math.MaxInt64) / time.Second)
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var d time.Duration
|
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if duration == nil {
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d = 300 * time.Second
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} else if *duration > max {
|
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return false, errors.New("unlock duration too large")
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} else {
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d = time.Duration(*duration) * time.Second
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}
|
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err := fetchKeystore(s.am).TimedUnlock(accounts.Account{Address: addr}, password, d)
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return err == nil, err
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}
|
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// LockAccount will lock the account associated with the given address when it's unlocked.
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func (s *PrivateAccountAPI) LockAccount(addr common.Address) bool {
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return fetchKeystore(s.am).Lock(addr) == nil
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}
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|
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// SendTransaction will create a transaction from the given arguments and
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// tries to sign it with the key associated with args.To. If the given passwd isn't
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// able to decrypt the key it fails.
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func (s *PrivateAccountAPI) SendTransaction(ctx context.Context, args SendTxArgs, passwd string) (common.Hash, error) {
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// Set some sanity defaults and terminate on failure
|
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if err := args.setDefaults(ctx, s.b); err != nil {
|
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return common.Hash{}, err
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}
|
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// Look up the wallet containing the requested signer
|
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account := accounts.Account{Address: args.From}
|
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wallet, err := s.am.Find(account)
|
||
if err != nil {
|
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return common.Hash{}, err
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}
|
||
// Assemble the transaction and sign with the wallet
|
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tx := args.toTransaction()
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||
|
||
var chainID *big.Int
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if config := s.b.ChainConfig(); config.IsEIP155(s.b.CurrentBlock().Number()) {
|
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chainID = config.ChainId
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}
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signed, err := wallet.SignTxWithPassphrase(account, passwd, tx, chainID)
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if err != nil {
|
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return common.Hash{}, err
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}
|
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return submitTransaction(ctx, s.b, signed)
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||
}
|
||
|
||
// signHash is a helper function that calculates a hash for the given message that can be
|
||
// safely used to calculate a signature from.
|
||
//
|
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// The hash is calulcated as
|
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// keccak256("\x19Ethereum Signed Message:\n"${message length}${message}).
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//
|
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// This gives context to the signed message and prevents signing of transactions.
|
||
func signHash(data []byte) []byte {
|
||
msg := fmt.Sprintf("\x19Ethereum Signed Message:\n%d%s", len(data), data)
|
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return crypto.Keccak256([]byte(msg))
|
||
}
|
||
|
||
// Sign calculates an Ethereum ECDSA signature for:
|
||
// keccack256("\x19Ethereum Signed Message:\n" + len(message) + message))
|
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//
|
||
// Note, the produced signature conforms to the secp256k1 curve R, S and V values,
|
||
// where the V value will be 27 or 28 for legacy reasons.
|
||
//
|
||
// The key used to calculate the signature is decrypted with the given password.
|
||
//
|
||
// https://github.com/ethereum/go-ethereum/wiki/Management-APIs#personal_sign
|
||
func (s *PrivateAccountAPI) Sign(ctx context.Context, data hexutil.Bytes, addr common.Address, passwd string) (hexutil.Bytes, error) {
|
||
// Look up the wallet containing the requested signer
|
||
account := accounts.Account{Address: addr}
|
||
|
||
wallet, err := s.b.AccountManager().Find(account)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
// Assemble sign the data with the wallet
|
||
signature, err := wallet.SignHashWithPassphrase(account, passwd, signHash(data))
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
signature[64] += 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 be 27 or 28 for legacy reasons.
|
||
//
|
||
// https://github.com/ethereum/go-ethereum/wiki/Management-APIs#personal_ecRecover
|
||
func (s *PrivateAccountAPI) EcRecover(ctx context.Context, data, sig hexutil.Bytes) (common.Address, error) {
|
||
if len(sig) != 65 {
|
||
return common.Address{}, fmt.Errorf("signature must be 65 bytes long")
|
||
}
|
||
if sig[64] != 27 && sig[64] != 28 {
|
||
return common.Address{}, fmt.Errorf("invalid Ethereum signature (V is not 27 or 28)")
|
||
}
|
||
sig[64] -= 27 // Transform yellow paper V from 27/28 to 0/1
|
||
|
||
rpk, err := crypto.Ecrecover(signHash(data), sig)
|
||
if err != nil {
|
||
return common.Address{}, err
|
||
}
|
||
pubKey := crypto.ToECDSAPub(rpk)
|
||
recoveredAddr := crypto.PubkeyToAddress(*pubKey)
|
||
return recoveredAddr, nil
|
||
}
|
||
|
||
// SignAndSendTransaction was renamed to SendTransaction. This method is deprecated
|
||
// and will be removed in the future. It primary goal is to give clients time to update.
|
||
func (s *PrivateAccountAPI) SignAndSendTransaction(ctx context.Context, args SendTxArgs, passwd string) (common.Hash, error) {
|
||
return s.SendTransaction(ctx, args, passwd)
|
||
}
|
||
|
||
// PublicBlockChainAPI provides an API to access the Ethereum blockchain.
|
||
// It offers only methods that operate on public data that is freely available to anyone.
|
||
type PublicBlockChainAPI struct {
|
||
b Backend
|
||
}
|
||
|
||
// NewPublicBlockChainAPI creates a new Etheruem blockchain API.
|
||
func NewPublicBlockChainAPI(b Backend) *PublicBlockChainAPI {
|
||
return &PublicBlockChainAPI{b}
|
||
}
|
||
|
||
// BlockNumber returns the block number of the chain head.
|
||
func (s *PublicBlockChainAPI) BlockNumber() *big.Int {
|
||
header, _ := s.b.HeaderByNumber(context.Background(), rpc.LatestBlockNumber) // latest header should always be available
|
||
return header.Number
|
||
}
|
||
|
||
// GetBalance returns the amount of wei for the given address in the state of the
|
||
// given block number. The rpc.LatestBlockNumber and rpc.PendingBlockNumber meta
|
||
// block numbers are also allowed.
|
||
func (s *PublicBlockChainAPI) GetBalance(ctx context.Context, address common.Address, blockNr rpc.BlockNumber) (*big.Int, error) {
|
||
state, _, err := s.b.StateAndHeaderByNumber(ctx, blockNr)
|
||
if state == nil || err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
return state.GetBalance(ctx, address)
|
||
}
|
||
|
||
// GetBlockByNumber returns the requested block. When blockNr is -1 the chain head is returned. When fullTx is true all
|
||
// transactions in the block are returned in full detail, otherwise only the transaction hash is returned.
|
||
func (s *PublicBlockChainAPI) GetBlockByNumber(ctx context.Context, blockNr rpc.BlockNumber, fullTx bool) (map[string]interface{}, error) {
|
||
block, err := s.b.BlockByNumber(ctx, blockNr)
|
||
if block != nil {
|
||
response, err := s.rpcOutputBlock(block, true, fullTx)
|
||
if err == nil && blockNr == rpc.PendingBlockNumber {
|
||
// Pending blocks need to nil out a few fields
|
||
for _, field := range []string{"hash", "nonce", "logsBloom", "miner"} {
|
||
response[field] = nil
|
||
}
|
||
}
|
||
return response, err
|
||
}
|
||
return nil, err
|
||
}
|
||
|
||
// GetBlockByHash returns the requested block. When fullTx is true all transactions in the block are returned in full
|
||
// detail, otherwise only the transaction hash is returned.
|
||
func (s *PublicBlockChainAPI) GetBlockByHash(ctx context.Context, blockHash common.Hash, fullTx bool) (map[string]interface{}, error) {
|
||
block, err := s.b.GetBlock(ctx, blockHash)
|
||
if block != nil {
|
||
return s.rpcOutputBlock(block, true, fullTx)
|
||
}
|
||
return nil, err
|
||
}
|
||
|
||
// GetUncleByBlockNumberAndIndex returns the uncle block for the given block hash and index. When fullTx is true
|
||
// all transactions in the block are returned in full detail, otherwise only the transaction hash is returned.
|
||
func (s *PublicBlockChainAPI) GetUncleByBlockNumberAndIndex(ctx context.Context, blockNr rpc.BlockNumber, index hexutil.Uint) (map[string]interface{}, error) {
|
||
block, err := s.b.BlockByNumber(ctx, blockNr)
|
||
if block != nil {
|
||
uncles := block.Uncles()
|
||
if index >= hexutil.Uint(len(uncles)) {
|
||
log.Debug(fmt.Sprintf("uncle block on index %d not found for block #%d", index, blockNr))
|
||
return nil, nil
|
||
}
|
||
block = types.NewBlockWithHeader(uncles[index])
|
||
return s.rpcOutputBlock(block, false, false)
|
||
}
|
||
return nil, err
|
||
}
|
||
|
||
// GetUncleByBlockHashAndIndex returns the uncle block for the given block hash and index. When fullTx is true
|
||
// all transactions in the block are returned in full detail, otherwise only the transaction hash is returned.
|
||
func (s *PublicBlockChainAPI) GetUncleByBlockHashAndIndex(ctx context.Context, blockHash common.Hash, index hexutil.Uint) (map[string]interface{}, error) {
|
||
block, err := s.b.GetBlock(ctx, blockHash)
|
||
if block != nil {
|
||
uncles := block.Uncles()
|
||
if index >= hexutil.Uint(len(uncles)) {
|
||
log.Debug(fmt.Sprintf("uncle block on index %d not found for block %s", index, blockHash.Hex()))
|
||
return nil, nil
|
||
}
|
||
block = types.NewBlockWithHeader(uncles[index])
|
||
return s.rpcOutputBlock(block, false, false)
|
||
}
|
||
return nil, err
|
||
}
|
||
|
||
// GetUncleCountByBlockNumber returns number of uncles in the block for the given block number
|
||
func (s *PublicBlockChainAPI) GetUncleCountByBlockNumber(ctx context.Context, blockNr rpc.BlockNumber) *hexutil.Uint {
|
||
if block, _ := s.b.BlockByNumber(ctx, blockNr); block != nil {
|
||
n := hexutil.Uint(len(block.Uncles()))
|
||
return &n
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetUncleCountByBlockHash returns number of uncles in the block for the given block hash
|
||
func (s *PublicBlockChainAPI) GetUncleCountByBlockHash(ctx context.Context, blockHash common.Hash) *hexutil.Uint {
|
||
if block, _ := s.b.GetBlock(ctx, blockHash); block != nil {
|
||
n := hexutil.Uint(len(block.Uncles()))
|
||
return &n
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetCode returns the code stored at the given address in the state for the given block number.
|
||
func (s *PublicBlockChainAPI) GetCode(ctx context.Context, address common.Address, blockNr rpc.BlockNumber) (string, error) {
|
||
state, _, err := s.b.StateAndHeaderByNumber(ctx, blockNr)
|
||
if state == nil || err != nil {
|
||
return "", err
|
||
}
|
||
res, err := state.GetCode(ctx, address)
|
||
if len(res) == 0 || err != nil { // backwards compatibility
|
||
return "0x", err
|
||
}
|
||
return common.ToHex(res), nil
|
||
}
|
||
|
||
// GetStorageAt returns the storage from the state at the given address, key and
|
||
// block number. The rpc.LatestBlockNumber and rpc.PendingBlockNumber meta block
|
||
// numbers are also allowed.
|
||
func (s *PublicBlockChainAPI) GetStorageAt(ctx context.Context, address common.Address, key string, blockNr rpc.BlockNumber) (string, error) {
|
||
state, _, err := s.b.StateAndHeaderByNumber(ctx, blockNr)
|
||
if state == nil || err != nil {
|
||
return "0x", err
|
||
}
|
||
res, err := state.GetState(ctx, address, common.HexToHash(key))
|
||
if err != nil {
|
||
return "0x", err
|
||
}
|
||
return res.Hex(), nil
|
||
}
|
||
|
||
// callmsg is the message type used for call transitions.
|
||
type callmsg struct {
|
||
addr common.Address
|
||
to *common.Address
|
||
gas, gasPrice *big.Int
|
||
value *big.Int
|
||
data []byte
|
||
}
|
||
|
||
// accessor boilerplate to implement core.Message
|
||
func (m callmsg) From() (common.Address, error) { return m.addr, nil }
|
||
func (m callmsg) FromFrontier() (common.Address, error) { return m.addr, nil }
|
||
func (m callmsg) Nonce() uint64 { return 0 }
|
||
func (m callmsg) CheckNonce() bool { return false }
|
||
func (m callmsg) To() *common.Address { return m.to }
|
||
func (m callmsg) GasPrice() *big.Int { return m.gasPrice }
|
||
func (m callmsg) Gas() *big.Int { return m.gas }
|
||
func (m callmsg) Value() *big.Int { return m.value }
|
||
func (m callmsg) Data() []byte { return m.data }
|
||
|
||
// CallArgs represents the arguments for a call.
|
||
type CallArgs struct {
|
||
From common.Address `json:"from"`
|
||
To *common.Address `json:"to"`
|
||
Gas hexutil.Big `json:"gas"`
|
||
GasPrice hexutil.Big `json:"gasPrice"`
|
||
Value hexutil.Big `json:"value"`
|
||
Data hexutil.Bytes `json:"data"`
|
||
}
|
||
|
||
func (s *PublicBlockChainAPI) doCall(ctx context.Context, args CallArgs, blockNr rpc.BlockNumber, vmCfg vm.Config) ([]byte, *big.Int, error) {
|
||
defer func(start time.Time) { log.Debug(fmt.Sprintf("call took %v", time.Since(start))) }(time.Now())
|
||
|
||
state, header, err := s.b.StateAndHeaderByNumber(ctx, blockNr)
|
||
if state == nil || err != nil {
|
||
return nil, common.Big0, err
|
||
}
|
||
// Set sender address or use a default if none specified
|
||
addr := args.From
|
||
if addr == (common.Address{}) {
|
||
if wallets := s.b.AccountManager().Wallets(); len(wallets) > 0 {
|
||
if accounts := wallets[0].Accounts(); len(accounts) > 0 {
|
||
addr = accounts[0].Address
|
||
}
|
||
}
|
||
}
|
||
// Set default gas & gas price if none were set
|
||
gas, gasPrice := args.Gas.ToInt(), args.GasPrice.ToInt()
|
||
if gas.BitLen() == 0 {
|
||
gas = big.NewInt(50000000)
|
||
}
|
||
if gasPrice.BitLen() == 0 {
|
||
gasPrice = new(big.Int).SetUint64(defaultGasPrice)
|
||
}
|
||
|
||
// Create new call message
|
||
msg := types.NewMessage(addr, args.To, 0, args.Value.ToInt(), gas, gasPrice, args.Data, false)
|
||
|
||
// 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 vmCfg.DisableGasMetering {
|
||
ctx, cancel = context.WithTimeout(ctx, time.Second*5)
|
||
} 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 func() { cancel() }()
|
||
|
||
// Get a new instance of the EVM.
|
||
evm, vmError, err := s.b.GetEVM(ctx, msg, state, header, vmCfg)
|
||
if err != nil {
|
||
return nil, common.Big0, err
|
||
}
|
||
// Wait for the context to be done and cancel the evm. Even if the
|
||
// EVM has finished, cancelling may be done (repeatedly)
|
||
go func() {
|
||
select {
|
||
case <-ctx.Done():
|
||
evm.Cancel()
|
||
}
|
||
}()
|
||
|
||
// Setup the gas pool (also for unmetered requests)
|
||
// and apply the message.
|
||
gp := new(core.GasPool).AddGas(math.MaxBig256)
|
||
res, gas, err := core.ApplyMessage(evm, msg, gp)
|
||
if err := vmError(); err != nil {
|
||
return nil, common.Big0, err
|
||
}
|
||
return res, gas, err
|
||
}
|
||
|
||
// Call executes the given transaction on the state for the given block number.
|
||
// It doesn't make and changes in the state/blockchain and is useful to execute and retrieve values.
|
||
func (s *PublicBlockChainAPI) Call(ctx context.Context, args CallArgs, blockNr rpc.BlockNumber) (hexutil.Bytes, error) {
|
||
result, _, err := s.doCall(ctx, args, blockNr, vm.Config{DisableGasMetering: true})
|
||
return (hexutil.Bytes)(result), err
|
||
}
|
||
|
||
// EstimateGas returns an estimate of the amount of gas needed to execute the given transaction.
|
||
func (s *PublicBlockChainAPI) EstimateGas(ctx context.Context, args CallArgs) (*hexutil.Big, error) {
|
||
// Binary search the gas requirement, as it may be higher than the amount used
|
||
var lo, hi uint64
|
||
if (*big.Int)(&args.Gas).BitLen() > 0 {
|
||
hi = (*big.Int)(&args.Gas).Uint64()
|
||
} else {
|
||
// Retrieve the current pending block to act as the gas ceiling
|
||
block, err := s.b.BlockByNumber(ctx, rpc.PendingBlockNumber)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
hi = block.GasLimit().Uint64()
|
||
}
|
||
for lo+1 < hi {
|
||
// Take a guess at the gas, and check transaction validity
|
||
mid := (hi + lo) / 2
|
||
(*big.Int)(&args.Gas).SetUint64(mid)
|
||
|
||
_, gas, err := s.doCall(ctx, args, rpc.PendingBlockNumber, vm.Config{})
|
||
|
||
// If the transaction became invalid or used all the gas (failed), raise the gas limit
|
||
if err != nil || gas.Cmp((*big.Int)(&args.Gas)) == 0 {
|
||
lo = mid
|
||
continue
|
||
}
|
||
// Otherwise assume the transaction succeeded, lower the gas limit
|
||
hi = mid
|
||
}
|
||
return (*hexutil.Big)(new(big.Int).SetUint64(hi)), nil
|
||
}
|
||
|
||
// ExecutionResult groups all structured logs emitted by the EVM
|
||
// while replaying a transaction in debug mode as well as the amount of
|
||
// gas used and the return value
|
||
type ExecutionResult struct {
|
||
Gas *big.Int `json:"gas"`
|
||
ReturnValue string `json:"returnValue"`
|
||
StructLogs []StructLogRes `json:"structLogs"`
|
||
}
|
||
|
||
// StructLogRes stores a structured log emitted by the EVM while replaying a
|
||
// transaction in debug mode
|
||
type StructLogRes struct {
|
||
Pc uint64 `json:"pc"`
|
||
Op string `json:"op"`
|
||
Gas *big.Int `json:"gas"`
|
||
GasCost *big.Int `json:"gasCost"`
|
||
Depth int `json:"depth"`
|
||
Error error `json:"error"`
|
||
Stack []string `json:"stack"`
|
||
Memory []string `json:"memory"`
|
||
Storage map[string]string `json:"storage"`
|
||
}
|
||
|
||
// formatLogs formats EVM returned structured logs for json output
|
||
func FormatLogs(structLogs []vm.StructLog) []StructLogRes {
|
||
formattedStructLogs := make([]StructLogRes, len(structLogs))
|
||
for index, trace := range structLogs {
|
||
formattedStructLogs[index] = StructLogRes{
|
||
Pc: trace.Pc,
|
||
Op: trace.Op.String(),
|
||
Gas: trace.Gas,
|
||
GasCost: trace.GasCost,
|
||
Depth: trace.Depth,
|
||
Error: trace.Err,
|
||
Stack: make([]string, len(trace.Stack)),
|
||
Storage: make(map[string]string),
|
||
}
|
||
|
||
for i, stackValue := range trace.Stack {
|
||
formattedStructLogs[index].Stack[i] = fmt.Sprintf("%x", common.LeftPadBytes(stackValue.Bytes(), 32))
|
||
}
|
||
|
||
for i := 0; i+32 <= len(trace.Memory); i += 32 {
|
||
formattedStructLogs[index].Memory = append(formattedStructLogs[index].Memory, fmt.Sprintf("%x", trace.Memory[i:i+32]))
|
||
}
|
||
|
||
for i, storageValue := range trace.Storage {
|
||
formattedStructLogs[index].Storage[fmt.Sprintf("%x", i)] = fmt.Sprintf("%x", storageValue)
|
||
}
|
||
}
|
||
return formattedStructLogs
|
||
}
|
||
|
||
// rpcOutputBlock 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 (s *PublicBlockChainAPI) rpcOutputBlock(b *types.Block, inclTx bool, fullTx bool) (map[string]interface{}, error) {
|
||
head := b.Header() // copies the header once
|
||
fields := map[string]interface{}{
|
||
"number": (*hexutil.Big)(head.Number),
|
||
"hash": b.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),
|
||
"totalDifficulty": (*hexutil.Big)(s.b.GetTd(b.Hash())),
|
||
"extraData": hexutil.Bytes(head.Extra),
|
||
"size": hexutil.Uint64(uint64(b.Size().Int64())),
|
||
"gasLimit": (*hexutil.Big)(head.GasLimit),
|
||
"gasUsed": (*hexutil.Big)(head.GasUsed),
|
||
"timestamp": (*hexutil.Big)(head.Time),
|
||
"transactionsRoot": head.TxHash,
|
||
"receiptsRoot": head.ReceiptHash,
|
||
}
|
||
|
||
if inclTx {
|
||
formatTx := func(tx *types.Transaction) (interface{}, error) {
|
||
return tx.Hash(), nil
|
||
}
|
||
|
||
if fullTx {
|
||
formatTx = func(tx *types.Transaction) (interface{}, error) {
|
||
return newRPCTransaction(b, tx.Hash())
|
||
}
|
||
}
|
||
|
||
txs := b.Transactions()
|
||
transactions := make([]interface{}, len(txs))
|
||
var err error
|
||
for i, tx := range b.Transactions() {
|
||
if transactions[i], err = formatTx(tx); err != nil {
|
||
return nil, err
|
||
}
|
||
}
|
||
fields["transactions"] = transactions
|
||
}
|
||
|
||
uncles := b.Uncles()
|
||
uncleHashes := make([]common.Hash, len(uncles))
|
||
for i, uncle := range uncles {
|
||
uncleHashes[i] = uncle.Hash()
|
||
}
|
||
fields["uncles"] = uncleHashes
|
||
|
||
return fields, nil
|
||
}
|
||
|
||
// 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.Big `json:"gas"`
|
||
GasPrice *hexutil.Big `json:"gasPrice"`
|
||
Hash common.Hash `json:"hash"`
|
||
Input hexutil.Bytes `json:"input"`
|
||
Nonce hexutil.Uint64 `json:"nonce"`
|
||
To *common.Address `json:"to"`
|
||
TransactionIndex hexutil.Uint `json:"transactionIndex"`
|
||
Value *hexutil.Big `json:"value"`
|
||
V *hexutil.Big `json:"v"`
|
||
R *hexutil.Big `json:"r"`
|
||
S *hexutil.Big `json:"s"`
|
||
}
|
||
|
||
// newRPCPendingTransaction returns a pending transaction that will serialize to the RPC representation
|
||
func newRPCPendingTransaction(tx *types.Transaction) *RPCTransaction {
|
||
var signer types.Signer = types.FrontierSigner{}
|
||
if tx.Protected() {
|
||
signer = types.NewEIP155Signer(tx.ChainId())
|
||
}
|
||
from, _ := types.Sender(signer, tx)
|
||
v, r, s := tx.RawSignatureValues()
|
||
return &RPCTransaction{
|
||
From: from,
|
||
Gas: (*hexutil.Big)(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),
|
||
}
|
||
}
|
||
|
||
// newRPCTransaction returns a transaction that will serialize to the RPC representation.
|
||
func newRPCTransactionFromBlockIndex(b *types.Block, txIndex uint) (*RPCTransaction, error) {
|
||
if txIndex < uint(len(b.Transactions())) {
|
||
tx := b.Transactions()[txIndex]
|
||
var signer types.Signer = types.FrontierSigner{}
|
||
if tx.Protected() {
|
||
signer = types.NewEIP155Signer(tx.ChainId())
|
||
}
|
||
from, _ := types.Sender(signer, tx)
|
||
v, r, s := tx.RawSignatureValues()
|
||
return &RPCTransaction{
|
||
BlockHash: b.Hash(),
|
||
BlockNumber: (*hexutil.Big)(b.Number()),
|
||
From: from,
|
||
Gas: (*hexutil.Big)(tx.Gas()),
|
||
GasPrice: (*hexutil.Big)(tx.GasPrice()),
|
||
Hash: tx.Hash(),
|
||
Input: hexutil.Bytes(tx.Data()),
|
||
Nonce: hexutil.Uint64(tx.Nonce()),
|
||
To: tx.To(),
|
||
TransactionIndex: hexutil.Uint(txIndex),
|
||
Value: (*hexutil.Big)(tx.Value()),
|
||
V: (*hexutil.Big)(v),
|
||
R: (*hexutil.Big)(r),
|
||
S: (*hexutil.Big)(s),
|
||
}, nil
|
||
}
|
||
|
||
return nil, nil
|
||
}
|
||
|
||
// newRPCRawTransactionFromBlockIndex returns the bytes of a transaction given a block and a transaction index.
|
||
func newRPCRawTransactionFromBlockIndex(b *types.Block, txIndex uint) (hexutil.Bytes, error) {
|
||
if txIndex < uint(len(b.Transactions())) {
|
||
tx := b.Transactions()[txIndex]
|
||
return rlp.EncodeToBytes(tx)
|
||
}
|
||
|
||
return nil, nil
|
||
}
|
||
|
||
// newRPCTransaction returns a transaction that will serialize to the RPC representation.
|
||
func newRPCTransaction(b *types.Block, txHash common.Hash) (*RPCTransaction, error) {
|
||
for idx, tx := range b.Transactions() {
|
||
if tx.Hash() == txHash {
|
||
return newRPCTransactionFromBlockIndex(b, uint(idx))
|
||
}
|
||
}
|
||
|
||
return nil, nil
|
||
}
|
||
|
||
// PublicTransactionPoolAPI exposes methods for the RPC interface
|
||
type PublicTransactionPoolAPI struct {
|
||
b Backend
|
||
}
|
||
|
||
// NewPublicTransactionPoolAPI creates a new RPC service with methods specific for the transaction pool.
|
||
func NewPublicTransactionPoolAPI(b Backend) *PublicTransactionPoolAPI {
|
||
return &PublicTransactionPoolAPI{b}
|
||
}
|
||
|
||
func getTransaction(chainDb ethdb.Database, b Backend, txHash common.Hash) (*types.Transaction, bool, error) {
|
||
txData, err := chainDb.Get(txHash.Bytes())
|
||
isPending := false
|
||
tx := new(types.Transaction)
|
||
|
||
if err == nil && len(txData) > 0 {
|
||
if err := rlp.DecodeBytes(txData, tx); err != nil {
|
||
return nil, isPending, err
|
||
}
|
||
} else {
|
||
// pending transaction?
|
||
tx = b.GetPoolTransaction(txHash)
|
||
isPending = true
|
||
}
|
||
|
||
return tx, isPending, nil
|
||
}
|
||
|
||
// GetBlockTransactionCountByNumber returns the number of transactions in the block with the given block number.
|
||
func (s *PublicTransactionPoolAPI) GetBlockTransactionCountByNumber(ctx context.Context, blockNr rpc.BlockNumber) *hexutil.Uint {
|
||
if block, _ := s.b.BlockByNumber(ctx, blockNr); block != nil {
|
||
n := hexutil.Uint(len(block.Transactions()))
|
||
return &n
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetBlockTransactionCountByHash returns the number of transactions in the block with the given hash.
|
||
func (s *PublicTransactionPoolAPI) GetBlockTransactionCountByHash(ctx context.Context, blockHash common.Hash) *hexutil.Uint {
|
||
if block, _ := s.b.GetBlock(ctx, blockHash); block != nil {
|
||
n := hexutil.Uint(len(block.Transactions()))
|
||
return &n
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetTransactionByBlockNumberAndIndex returns the transaction for the given block number and index.
|
||
func (s *PublicTransactionPoolAPI) GetTransactionByBlockNumberAndIndex(ctx context.Context, blockNr rpc.BlockNumber, index hexutil.Uint) (*RPCTransaction, error) {
|
||
if block, _ := s.b.BlockByNumber(ctx, blockNr); block != nil {
|
||
return newRPCTransactionFromBlockIndex(block, uint(index))
|
||
}
|
||
return nil, nil
|
||
}
|
||
|
||
// GetTransactionByBlockHashAndIndex returns the transaction for the given block hash and index.
|
||
func (s *PublicTransactionPoolAPI) GetTransactionByBlockHashAndIndex(ctx context.Context, blockHash common.Hash, index hexutil.Uint) (*RPCTransaction, error) {
|
||
if block, _ := s.b.GetBlock(ctx, blockHash); block != nil {
|
||
return newRPCTransactionFromBlockIndex(block, uint(index))
|
||
}
|
||
return nil, nil
|
||
}
|
||
|
||
// GetRawTransactionByBlockNumberAndIndex returns the bytes of the transaction for the given block number and index.
|
||
func (s *PublicTransactionPoolAPI) GetRawTransactionByBlockNumberAndIndex(ctx context.Context, blockNr rpc.BlockNumber, index hexutil.Uint) (hexutil.Bytes, error) {
|
||
if block, _ := s.b.BlockByNumber(ctx, blockNr); block != nil {
|
||
return newRPCRawTransactionFromBlockIndex(block, uint(index))
|
||
}
|
||
return nil, nil
|
||
}
|
||
|
||
// GetRawTransactionByBlockHashAndIndex returns the bytes of the transaction for the given block hash and index.
|
||
func (s *PublicTransactionPoolAPI) GetRawTransactionByBlockHashAndIndex(ctx context.Context, blockHash common.Hash, index hexutil.Uint) (hexutil.Bytes, error) {
|
||
if block, _ := s.b.GetBlock(ctx, blockHash); block != nil {
|
||
return newRPCRawTransactionFromBlockIndex(block, uint(index))
|
||
}
|
||
return nil, nil
|
||
}
|
||
|
||
// GetTransactionCount returns the number of transactions the given address has sent for the given block number
|
||
func (s *PublicTransactionPoolAPI) GetTransactionCount(ctx context.Context, address common.Address, blockNr rpc.BlockNumber) (*hexutil.Uint64, error) {
|
||
state, _, err := s.b.StateAndHeaderByNumber(ctx, blockNr)
|
||
if state == nil || err != nil {
|
||
return nil, err
|
||
}
|
||
nonce, err := state.GetNonce(ctx, address)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
return (*hexutil.Uint64)(&nonce), nil
|
||
}
|
||
|
||
// getTransactionBlockData fetches the meta data for the given transaction from the chain database. This is useful to
|
||
// retrieve block information for a hash. It returns the block hash, block index and transaction index.
|
||
func getTransactionBlockData(chainDb ethdb.Database, txHash common.Hash) (common.Hash, uint64, uint64, error) {
|
||
var txBlock struct {
|
||
BlockHash common.Hash
|
||
BlockIndex uint64
|
||
Index uint64
|
||
}
|
||
|
||
blockData, err := chainDb.Get(append(txHash.Bytes(), 0x0001))
|
||
if err != nil {
|
||
return common.Hash{}, uint64(0), uint64(0), err
|
||
}
|
||
|
||
reader := bytes.NewReader(blockData)
|
||
if err = rlp.Decode(reader, &txBlock); err != nil {
|
||
return common.Hash{}, uint64(0), uint64(0), err
|
||
}
|
||
|
||
return txBlock.BlockHash, txBlock.BlockIndex, txBlock.Index, nil
|
||
}
|
||
|
||
// GetTransactionByHash returns the transaction for the given hash
|
||
func (s *PublicTransactionPoolAPI) GetTransactionByHash(ctx context.Context, txHash common.Hash) (*RPCTransaction, error) {
|
||
var tx *types.Transaction
|
||
var isPending bool
|
||
var err error
|
||
|
||
if tx, isPending, err = getTransaction(s.b.ChainDb(), s.b, txHash); err != nil {
|
||
log.Debug(fmt.Sprintf("%v\n", err))
|
||
return nil, nil
|
||
} else if tx == nil {
|
||
return nil, nil
|
||
}
|
||
|
||
if isPending {
|
||
return newRPCPendingTransaction(tx), nil
|
||
}
|
||
|
||
blockHash, _, _, err := getTransactionBlockData(s.b.ChainDb(), txHash)
|
||
if err != nil {
|
||
log.Debug(fmt.Sprintf("%v\n", err))
|
||
return nil, nil
|
||
}
|
||
|
||
if block, _ := s.b.GetBlock(ctx, blockHash); block != nil {
|
||
return newRPCTransaction(block, txHash)
|
||
}
|
||
|
||
return nil, nil
|
||
}
|
||
|
||
// GetRawTransactionByHash returns the bytes of the transaction for the given hash.
|
||
func (s *PublicTransactionPoolAPI) GetRawTransactionByHash(ctx context.Context, txHash common.Hash) (hexutil.Bytes, error) {
|
||
var tx *types.Transaction
|
||
var err error
|
||
|
||
if tx, _, err = getTransaction(s.b.ChainDb(), s.b, txHash); err != nil {
|
||
log.Debug(fmt.Sprintf("%v\n", err))
|
||
return nil, nil
|
||
} else if tx == nil {
|
||
return nil, nil
|
||
}
|
||
|
||
return rlp.EncodeToBytes(tx)
|
||
}
|
||
|
||
// GetTransactionReceipt returns the transaction receipt for the given transaction hash.
|
||
func (s *PublicTransactionPoolAPI) GetTransactionReceipt(txHash common.Hash) (map[string]interface{}, error) {
|
||
receipt := core.GetReceipt(s.b.ChainDb(), txHash)
|
||
if receipt == nil {
|
||
log.Debug(fmt.Sprintf("receipt not found for transaction %s", txHash.Hex()))
|
||
return nil, nil
|
||
}
|
||
|
||
tx, _, err := getTransaction(s.b.ChainDb(), s.b, txHash)
|
||
if err != nil {
|
||
log.Debug(fmt.Sprintf("%v\n", err))
|
||
return nil, nil
|
||
}
|
||
|
||
txBlock, blockIndex, index, err := getTransactionBlockData(s.b.ChainDb(), txHash)
|
||
if err != nil {
|
||
log.Debug(fmt.Sprintf("%v\n", err))
|
||
return nil, nil
|
||
}
|
||
|
||
var signer types.Signer = types.FrontierSigner{}
|
||
if tx.Protected() {
|
||
signer = types.NewEIP155Signer(tx.ChainId())
|
||
}
|
||
from, _ := types.Sender(signer, tx)
|
||
|
||
fields := map[string]interface{}{
|
||
"root": hexutil.Bytes(receipt.PostState),
|
||
"blockHash": txBlock,
|
||
"blockNumber": hexutil.Uint64(blockIndex),
|
||
"transactionHash": txHash,
|
||
"transactionIndex": hexutil.Uint64(index),
|
||
"from": from,
|
||
"to": tx.To(),
|
||
"gasUsed": (*hexutil.Big)(receipt.GasUsed),
|
||
"cumulativeGasUsed": (*hexutil.Big)(receipt.CumulativeGasUsed),
|
||
"contractAddress": nil,
|
||
"logs": receipt.Logs,
|
||
"logsBloom": receipt.Bloom,
|
||
}
|
||
if receipt.Logs == nil {
|
||
fields["logs"] = [][]*types.Log{}
|
||
}
|
||
// If the ContractAddress is 20 0x0 bytes, assume it is not a contract creation
|
||
if receipt.ContractAddress != (common.Address{}) {
|
||
fields["contractAddress"] = receipt.ContractAddress
|
||
}
|
||
return fields, nil
|
||
}
|
||
|
||
// sign is a helper function that signs a transaction with the private key of the given address.
|
||
func (s *PublicTransactionPoolAPI) sign(addr common.Address, tx *types.Transaction) (*types.Transaction, error) {
|
||
// Look up the wallet containing the requested signer
|
||
account := accounts.Account{Address: addr}
|
||
|
||
wallet, err := s.b.AccountManager().Find(account)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
// Request the wallet to sign the transaction
|
||
var chainID *big.Int
|
||
if config := s.b.ChainConfig(); config.IsEIP155(s.b.CurrentBlock().Number()) {
|
||
chainID = config.ChainId
|
||
}
|
||
return wallet.SignTx(account, tx, chainID)
|
||
}
|
||
|
||
// SendTxArgs represents the arguments to sumbit a new transaction into the transaction pool.
|
||
type SendTxArgs struct {
|
||
From common.Address `json:"from"`
|
||
To *common.Address `json:"to"`
|
||
Gas *hexutil.Big `json:"gas"`
|
||
GasPrice *hexutil.Big `json:"gasPrice"`
|
||
Value *hexutil.Big `json:"value"`
|
||
Data hexutil.Bytes `json:"data"`
|
||
Nonce *hexutil.Uint64 `json:"nonce"`
|
||
}
|
||
|
||
// prepareSendTxArgs is a helper function that fills in default values for unspecified tx fields.
|
||
func (args *SendTxArgs) setDefaults(ctx context.Context, b Backend) error {
|
||
if args.Gas == nil {
|
||
args.Gas = (*hexutil.Big)(big.NewInt(defaultGas))
|
||
}
|
||
if args.GasPrice == nil {
|
||
price, err := b.SuggestPrice(ctx)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
args.GasPrice = (*hexutil.Big)(price)
|
||
}
|
||
if args.Value == nil {
|
||
args.Value = new(hexutil.Big)
|
||
}
|
||
if args.Nonce == nil {
|
||
nonce, err := b.GetPoolNonce(ctx, args.From)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
args.Nonce = (*hexutil.Uint64)(&nonce)
|
||
}
|
||
return nil
|
||
}
|
||
|
||
func (args *SendTxArgs) toTransaction() *types.Transaction {
|
||
if args.To == nil {
|
||
return types.NewContractCreation(uint64(*args.Nonce), (*big.Int)(args.Value), (*big.Int)(args.Gas), (*big.Int)(args.GasPrice), args.Data)
|
||
}
|
||
return types.NewTransaction(uint64(*args.Nonce), *args.To, (*big.Int)(args.Value), (*big.Int)(args.Gas), (*big.Int)(args.GasPrice), args.Data)
|
||
}
|
||
|
||
// 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 err := b.SendTx(ctx, tx); err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
if tx.To() == nil {
|
||
signer := types.MakeSigner(b.ChainConfig(), b.CurrentBlock().Number())
|
||
from, _ := types.Sender(signer, tx)
|
||
addr := crypto.CreateAddress(from, tx.Nonce())
|
||
log.Info(fmt.Sprintf("Tx(%s) created: %s\n", tx.Hash().Hex(), addr.Hex()))
|
||
} else {
|
||
log.Info(fmt.Sprintf("Tx(%s) to: %s\n", tx.Hash().Hex(), tx.To().Hex()))
|
||
}
|
||
return tx.Hash(), nil
|
||
}
|
||
|
||
// SendTransaction creates a transaction for the given argument, sign it and submit it to the
|
||
// transaction pool.
|
||
func (s *PublicTransactionPoolAPI) SendTransaction(ctx context.Context, args SendTxArgs) (common.Hash, error) {
|
||
// Set some sanity defaults and terminate on failure
|
||
if err := args.setDefaults(ctx, s.b); err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
// Look up the wallet containing the requested signer
|
||
account := accounts.Account{Address: args.From}
|
||
|
||
wallet, err := s.b.AccountManager().Find(account)
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
// Assemble the transaction and sign with the wallet
|
||
tx := args.toTransaction()
|
||
|
||
var chainID *big.Int
|
||
if config := s.b.ChainConfig(); config.IsEIP155(s.b.CurrentBlock().Number()) {
|
||
chainID = config.ChainId
|
||
}
|
||
signed, err := wallet.SignTx(account, tx, chainID)
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
return submitTransaction(ctx, s.b, signed)
|
||
}
|
||
|
||
// SendRawTransaction will add the signed transaction to the transaction pool.
|
||
// The sender is responsible for signing the transaction and using the correct nonce.
|
||
func (s *PublicTransactionPoolAPI) SendRawTransaction(ctx context.Context, encodedTx hexutil.Bytes) (string, error) {
|
||
tx := new(types.Transaction)
|
||
if err := rlp.DecodeBytes(encodedTx, tx); err != nil {
|
||
return "", err
|
||
}
|
||
|
||
if err := s.b.SendTx(ctx, tx); err != nil {
|
||
return "", err
|
||
}
|
||
|
||
signer := types.MakeSigner(s.b.ChainConfig(), s.b.CurrentBlock().Number())
|
||
if tx.To() == nil {
|
||
from, err := types.Sender(signer, tx)
|
||
if err != nil {
|
||
return "", err
|
||
}
|
||
addr := crypto.CreateAddress(from, tx.Nonce())
|
||
log.Info(fmt.Sprintf("Tx(%x) created: %x\n", tx.Hash(), addr))
|
||
} else {
|
||
log.Info(fmt.Sprintf("Tx(%x) to: %x\n", tx.Hash(), tx.To()))
|
||
}
|
||
|
||
return tx.Hash().Hex(), nil
|
||
}
|
||
|
||
// Sign calculates an ECDSA signature for:
|
||
// keccack256("\x19Ethereum Signed Message:\n" + len(message) + message).
|
||
//
|
||
// Note, the produced signature conforms to the secp256k1 curve R, S and V values,
|
||
// where the V value will be 27 or 28 for legacy reasons.
|
||
//
|
||
// The account associated with addr must be unlocked.
|
||
//
|
||
// https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_sign
|
||
func (s *PublicTransactionPoolAPI) Sign(addr common.Address, data hexutil.Bytes) (hexutil.Bytes, error) {
|
||
// Look up the wallet containing the requested signer
|
||
account := accounts.Account{Address: addr}
|
||
|
||
wallet, err := s.b.AccountManager().Find(account)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
// Sign the requested hash with the wallet
|
||
signature, err := wallet.SignHash(account, signHash(data))
|
||
if err == nil {
|
||
signature[64] += 27 // Transform V from 0/1 to 27/28 according to the yellow paper
|
||
}
|
||
return signature, err
|
||
}
|
||
|
||
// SignTransactionResult represents a RLP encoded signed transaction.
|
||
type SignTransactionResult struct {
|
||
Raw hexutil.Bytes `json:"raw"`
|
||
Tx *types.Transaction `json:"tx"`
|
||
}
|
||
|
||
// SignTransaction will sign the given transaction with the from account.
|
||
// The node needs to have the private key of the account corresponding with
|
||
// the given from address and it needs to be unlocked.
|
||
func (s *PublicTransactionPoolAPI) SignTransaction(ctx context.Context, args SendTxArgs) (*SignTransactionResult, error) {
|
||
if err := args.setDefaults(ctx, s.b); err != nil {
|
||
return nil, err
|
||
}
|
||
tx, err := s.sign(args.From, args.toTransaction())
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
data, err := rlp.EncodeToBytes(tx)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
return &SignTransactionResult{data, tx}, nil
|
||
}
|
||
|
||
// PendingTransactions returns the transactions that are in the transaction pool and have a from address that is one of
|
||
// the accounts this node manages.
|
||
func (s *PublicTransactionPoolAPI) PendingTransactions() ([]*RPCTransaction, error) {
|
||
pending, err := s.b.GetPoolTransactions()
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
transactions := make([]*RPCTransaction, 0, len(pending))
|
||
for _, tx := range pending {
|
||
var signer types.Signer = types.HomesteadSigner{}
|
||
if tx.Protected() {
|
||
signer = types.NewEIP155Signer(tx.ChainId())
|
||
}
|
||
from, _ := types.Sender(signer, tx)
|
||
if _, err := s.b.AccountManager().Find(accounts.Account{Address: from}); err == nil {
|
||
transactions = append(transactions, newRPCPendingTransaction(tx))
|
||
}
|
||
}
|
||
return transactions, nil
|
||
}
|
||
|
||
// Resend accepts an existing transaction and a new gas price and limit. It will remove
|
||
// the given transaction from the pool and reinsert it with the new gas price and limit.
|
||
func (s *PublicTransactionPoolAPI) Resend(ctx context.Context, sendArgs SendTxArgs, gasPrice, gasLimit *hexutil.Big) (common.Hash, error) {
|
||
if sendArgs.Nonce == nil {
|
||
return common.Hash{}, fmt.Errorf("missing transaction nonce in transaction spec")
|
||
}
|
||
if err := sendArgs.setDefaults(ctx, s.b); err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
matchTx := sendArgs.toTransaction()
|
||
pending, err := s.b.GetPoolTransactions()
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
|
||
for _, p := range pending {
|
||
var signer types.Signer = types.HomesteadSigner{}
|
||
if p.Protected() {
|
||
signer = types.NewEIP155Signer(p.ChainId())
|
||
}
|
||
wantSigHash := signer.Hash(matchTx)
|
||
|
||
if pFrom, err := types.Sender(signer, p); err == nil && pFrom == sendArgs.From && signer.Hash(p) == wantSigHash {
|
||
// Match. Re-sign and send the transaction.
|
||
if gasPrice != nil {
|
||
sendArgs.GasPrice = gasPrice
|
||
}
|
||
if gasLimit != nil {
|
||
sendArgs.Gas = gasLimit
|
||
}
|
||
signedTx, err := s.sign(sendArgs.From, sendArgs.toTransaction())
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
s.b.RemoveTx(p.Hash())
|
||
if err = s.b.SendTx(ctx, signedTx); err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
return signedTx.Hash(), nil
|
||
}
|
||
}
|
||
|
||
return common.Hash{}, fmt.Errorf("Transaction %#x not found", matchTx.Hash())
|
||
}
|
||
|
||
// PublicDebugAPI is the collection of Etheruem APIs exposed over the public
|
||
// debugging endpoint.
|
||
type PublicDebugAPI struct {
|
||
b Backend
|
||
}
|
||
|
||
// NewPublicDebugAPI creates a new API definition for the public debug methods
|
||
// of the Ethereum service.
|
||
func NewPublicDebugAPI(b Backend) *PublicDebugAPI {
|
||
return &PublicDebugAPI{b: b}
|
||
}
|
||
|
||
// GetBlockRlp retrieves the RLP encoded for of a single block.
|
||
func (api *PublicDebugAPI) GetBlockRlp(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)
|
||
}
|
||
encoded, err := rlp.EncodeToBytes(block)
|
||
if err != nil {
|
||
return "", err
|
||
}
|
||
return fmt.Sprintf("%x", encoded), nil
|
||
}
|
||
|
||
// PrintBlock retrieves a block and returns its pretty printed form.
|
||
func (api *PublicDebugAPI) 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 fmt.Sprintf("%s", block), nil
|
||
}
|
||
|
||
// SeedHash retrieves the seed hash of a block.
|
||
func (api *PublicDebugAPI) SeedHash(ctx context.Context, number uint64) (string, error) {
|
||
block, _ := api.b.BlockByNumber(ctx, rpc.BlockNumber(number))
|
||
if block == nil {
|
||
return "", fmt.Errorf("block #%d not found", number)
|
||
}
|
||
hash, err := ethash.GetSeedHash(number)
|
||
if err != nil {
|
||
return "", err
|
||
}
|
||
return fmt.Sprintf("0x%x", hash), nil
|
||
}
|
||
|
||
// PrivateDebugAPI is the collection of Etheruem APIs exposed over the private
|
||
// debugging endpoint.
|
||
type PrivateDebugAPI struct {
|
||
b Backend
|
||
}
|
||
|
||
// NewPrivateDebugAPI creates a new API definition for the private debug methods
|
||
// of the Ethereum service.
|
||
func NewPrivateDebugAPI(b Backend) *PrivateDebugAPI {
|
||
return &PrivateDebugAPI{b: b}
|
||
}
|
||
|
||
// ChaindbProperty returns leveldb properties of the chain database.
|
||
func (api *PrivateDebugAPI) ChaindbProperty(property string) (string, error) {
|
||
ldb, ok := api.b.ChainDb().(interface {
|
||
LDB() *leveldb.DB
|
||
})
|
||
if !ok {
|
||
return "", fmt.Errorf("chaindbProperty does not work for memory databases")
|
||
}
|
||
if property == "" {
|
||
property = "leveldb.stats"
|
||
} else if !strings.HasPrefix(property, "leveldb.") {
|
||
property = "leveldb." + property
|
||
}
|
||
return ldb.LDB().GetProperty(property)
|
||
}
|
||
|
||
func (api *PrivateDebugAPI) ChaindbCompact() error {
|
||
ldb, ok := api.b.ChainDb().(interface {
|
||
LDB() *leveldb.DB
|
||
})
|
||
if !ok {
|
||
return fmt.Errorf("chaindbCompact does not work for memory databases")
|
||
}
|
||
for b := byte(0); b < 255; b++ {
|
||
log.Info(fmt.Sprintf("compacting chain DB range 0x%0.2X-0x%0.2X", b, b+1))
|
||
err := ldb.LDB().CompactRange(util.Range{Start: []byte{b}, Limit: []byte{b + 1}})
|
||
if err != nil {
|
||
log.Error(fmt.Sprintf("compaction error: %v", err))
|
||
return err
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// SetHead rewinds the head of the blockchain to a previous block.
|
||
func (api *PrivateDebugAPI) SetHead(number hexutil.Uint64) {
|
||
api.b.SetHead(uint64(number))
|
||
}
|
||
|
||
// PublicNetAPI offers network related RPC methods
|
||
type PublicNetAPI struct {
|
||
net *p2p.Server
|
||
networkVersion int
|
||
}
|
||
|
||
// NewPublicNetAPI creates a new net API instance.
|
||
func NewPublicNetAPI(net *p2p.Server, networkVersion int) *PublicNetAPI {
|
||
return &PublicNetAPI{net, networkVersion}
|
||
}
|
||
|
||
// Listening returns an indication if the node is listening for network connections.
|
||
func (s *PublicNetAPI) Listening() bool {
|
||
return true // always listening
|
||
}
|
||
|
||
// PeerCount returns the number of connected peers
|
||
func (s *PublicNetAPI) PeerCount() hexutil.Uint {
|
||
return hexutil.Uint(s.net.PeerCount())
|
||
}
|
||
|
||
// Version returns the current ethereum protocol version.
|
||
func (s *PublicNetAPI) Version() string {
|
||
return fmt.Sprintf("%d", s.networkVersion)
|
||
}
|