4e36b1e3da
The transaction pool keeps track of the current nonce in its local pendingState. When a new block comes in the pendingState is reset. During the reset it fetches multiple times the current state through the use of the currentState callback. When a second block comes in during the reset its possible that the state changes during the reset. If that block holds transactions that are currently in the pool the local pendingState that is used to determine nonces can get out of sync.
1465 lines
50 KiB
Go
1465 lines
50 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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"encoding/json"
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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/common"
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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/logger"
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"github.com/ethereum/go-ethereum/logger/glog"
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"github.com/ethereum/go-ethereum/p2p"
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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 defaultGas = uint64(90000)
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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() *rpc.HexNumber {
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return rpc.NewHexNumber(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": rpc.NewHexNumber(progress.StartingBlock),
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"currentBlock": rpc.NewHexNumber(progress.CurrentBlock),
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"highestBlock": rpc.NewHexNumber(progress.HighestBlock),
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"pulledStates": rpc.NewHexNumber(progress.PulledStates),
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"knownStates": rpc.NewHexNumber(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]*rpc.HexNumber {
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pending, queue := s.b.Stats()
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return map[string]*rpc.HexNumber{
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"pending": rpc.NewHexNumber(pending),
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"queued": rpc.NewHexNumber(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() []accounts.Account {
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return s.am.Accounts()
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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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accounts := s.am.Accounts()
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addresses := make([]common.Address, len(accounts))
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for i, acc := range accounts {
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addresses[i] = acc.Address
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}
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return addresses
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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 := 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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// 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 := s.am.ImportECDSA(crypto.ToECDSA(hexkey), password)
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return acc.Address, err
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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 *rpc.HexNumber) (bool, error) {
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if duration == nil {
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duration = rpc.NewHexNumber(300)
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}
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a := accounts.Account{Address: addr}
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d := time.Duration(duration.Int64()) * time.Second
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if err := s.am.TimedUnlock(a, password, d); err != nil {
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return false, err
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}
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return true, nil
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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 s.am.Lock(addr) == nil
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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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var err error
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args, err = prepareSendTxArgs(ctx, args, s.b)
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if err != nil {
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return common.Hash{}, err
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}
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if args.Nonce == nil {
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nonce, err := s.b.GetPoolNonce(ctx, args.From)
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if err != nil {
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return common.Hash{}, err
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}
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args.Nonce = rpc.NewHexNumber(nonce)
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}
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var tx *types.Transaction
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if args.To == nil {
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tx = types.NewContractCreation(args.Nonce.Uint64(), args.Value.BigInt(), args.Gas.BigInt(), args.GasPrice.BigInt(), common.FromHex(args.Data))
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} else {
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tx = types.NewTransaction(args.Nonce.Uint64(), *args.To, args.Value.BigInt(), args.Gas.BigInt(), args.GasPrice.BigInt(), common.FromHex(args.Data))
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}
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signer := types.MakeSigner(s.b.ChainConfig(), s.b.CurrentBlock().Number())
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signature, err := s.am.SignWithPassphrase(args.From, passwd, signer.Hash(tx).Bytes())
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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, tx, signature)
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}
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// signHash is a helper function that calculates a hash for the given message that can be
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// safely used to calculate a signature from. The hash is calulcated with:
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// keccak256("\x19Ethereum Signed Message:\n"${message length}${message}).
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func signHash(message string) []byte {
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data := common.FromHex(message)
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// Give context to the signed message. This prevents an adversery to sign a tx.
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// It has no cryptographic purpose.
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msg := fmt.Sprintf("\x19Ethereum Signed Message:\n%d%s", len(data), data)
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// Always hash, this prevents choosen plaintext attacks that can extract key information
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return crypto.Keccak256([]byte(msg))
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}
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// Sign calculates an Ethereum ECDSA signature for:
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// keccack256("\x19Ethereum Signed Message:\n" + len(message) + message))
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//
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// The key used to calculate the signature is decrypted with the given password.
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//
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// https://github.com/ethereum/go-ethereum/wiki/Management-APIs#personal_sign
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func (s *PrivateAccountAPI) Sign(ctx context.Context, message string, addr common.Address, passwd string) (string, error) {
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hash := signHash(message)
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signature, err := s.b.AccountManager().SignWithPassphrase(addr, passwd, hash)
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if err != nil {
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||
return "0x", err
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||
}
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return common.ToHex(signature), nil
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}
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// EcRecover returns the address for the account that was used to create the signature.
|
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// Note, this function is compatible with eth_sign and personal_sign. As such it recovers
|
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// the address of:
|
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// hash = keccak256("\x19Ethereum Signed Message:\n"${message length}${message})
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// addr = ecrecover(hash, signature)
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//
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// https://github.com/ethereum/go-ethereum/wiki/Management-APIs#personal_ecRecover
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func (s *PrivateAccountAPI) EcRecover(ctx context.Context, message string, signature string) (common.Address, error) {
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var (
|
||
hash = signHash(message)
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sig = common.FromHex(signature)
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)
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||
|
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if len(sig) != 65 {
|
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return common.Address{}, fmt.Errorf("signature must be 65 bytes long")
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}
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||
|
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// see crypto.Ecrecover description
|
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if sig[64] == 27 || sig[64] == 28 {
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sig[64] -= 27
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||
}
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||
|
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rpk, err := crypto.Ecrecover(hash, sig)
|
||
if err != nil {
|
||
return common.Address{}, err
|
||
}
|
||
|
||
pubKey := crypto.ToECDSAPub(rpk)
|
||
recoveredAddr := crypto.PubkeyToAddress(*pubKey)
|
||
|
||
return recoveredAddr, nil
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||
}
|
||
|
||
// 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 rpc.HexNumber) (map[string]interface{}, error) {
|
||
block, err := s.b.BlockByNumber(ctx, blockNr)
|
||
if block != nil {
|
||
uncles := block.Uncles()
|
||
if index.Int() < 0 || index.Int() >= len(uncles) {
|
||
glog.V(logger.Debug).Infof("uncle block on index %d not found for block #%d", index.Int(), blockNr)
|
||
return nil, nil
|
||
}
|
||
block = types.NewBlockWithHeader(uncles[index.Int()])
|
||
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 rpc.HexNumber) (map[string]interface{}, error) {
|
||
block, err := s.b.GetBlock(ctx, blockHash)
|
||
if block != nil {
|
||
uncles := block.Uncles()
|
||
if index.Int() < 0 || index.Int() >= len(uncles) {
|
||
glog.V(logger.Debug).Infof("uncle block on index %d not found for block %s", index.Int(), blockHash.Hex())
|
||
return nil, nil
|
||
}
|
||
block = types.NewBlockWithHeader(uncles[index.Int()])
|
||
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) *rpc.HexNumber {
|
||
if block, _ := s.b.BlockByNumber(ctx, blockNr); block != nil {
|
||
return rpc.NewHexNumber(len(block.Uncles()))
|
||
}
|
||
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) *rpc.HexNumber {
|
||
if block, _ := s.b.GetBlock(ctx, blockHash); block != nil {
|
||
return rpc.NewHexNumber(len(block.Uncles()))
|
||
}
|
||
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 transations.
|
||
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 rpc.HexNumber `json:"gas"`
|
||
GasPrice rpc.HexNumber `json:"gasPrice"`
|
||
Value rpc.HexNumber `json:"value"`
|
||
Data string `json:"data"`
|
||
}
|
||
|
||
func (s *PublicBlockChainAPI) doCall(ctx context.Context, args CallArgs, blockNr rpc.BlockNumber) (string, *big.Int, error) {
|
||
defer func(start time.Time) { glog.V(logger.Debug).Infof("call took %v", time.Since(start)) }(time.Now())
|
||
|
||
state, header, err := s.b.StateAndHeaderByNumber(ctx, blockNr)
|
||
if state == nil || err != nil {
|
||
return "0x", common.Big0, err
|
||
}
|
||
|
||
// Set the account address to interact with
|
||
var addr common.Address
|
||
if args.From == (common.Address{}) {
|
||
accounts := s.b.AccountManager().Accounts()
|
||
if len(accounts) == 0 {
|
||
addr = common.Address{}
|
||
} else {
|
||
addr = accounts[0].Address
|
||
}
|
||
} else {
|
||
addr = args.From
|
||
}
|
||
|
||
// Assemble the CALL invocation
|
||
gas, gasPrice := args.Gas.BigInt(), args.GasPrice.BigInt()
|
||
if gas.Cmp(common.Big0) == 0 {
|
||
gas = big.NewInt(50000000)
|
||
}
|
||
if gasPrice.Cmp(common.Big0) == 0 {
|
||
gasPrice = new(big.Int).Mul(big.NewInt(50), common.Shannon)
|
||
}
|
||
msg := types.NewMessage(addr, args.To, 0, args.Value.BigInt(), gas, gasPrice, common.FromHex(args.Data), false)
|
||
|
||
// Execute the call and return
|
||
vmenv, vmError, err := s.b.GetVMEnv(ctx, msg, state, header)
|
||
if err != nil {
|
||
return "0x", common.Big0, err
|
||
}
|
||
gp := new(core.GasPool).AddGas(common.MaxBig)
|
||
res, gas, err := core.ApplyMessage(vmenv, msg, gp)
|
||
if err := vmError(); err != nil {
|
||
return "0x", common.Big0, err
|
||
}
|
||
if len(res) == 0 { // backwards compatability
|
||
return "0x", gas, err
|
||
}
|
||
return common.ToHex(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 usefull to execute and retrieve values.
|
||
func (s *PublicBlockChainAPI) Call(ctx context.Context, args CallArgs, blockNr rpc.BlockNumber) (string, error) {
|
||
result, _, err := s.doCall(ctx, args, blockNr)
|
||
return 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) (*rpc.HexNumber, error) {
|
||
_, gas, err := s.doCall(ctx, args, rpc.PendingBlockNumber)
|
||
return rpc.NewHexNumber(gas), err
|
||
}
|
||
|
||
// 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": rpc.NewHexNumber(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": rpc.NewHexNumber(head.Difficulty),
|
||
"totalDifficulty": rpc.NewHexNumber(s.b.GetTd(b.Hash())),
|
||
"extraData": rpc.HexBytes(head.Extra),
|
||
"size": rpc.NewHexNumber(b.Size().Int64()),
|
||
"gasLimit": rpc.NewHexNumber(head.GasLimit),
|
||
"gasUsed": rpc.NewHexNumber(head.GasUsed),
|
||
"timestamp": rpc.NewHexNumber(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 *rpc.HexNumber `json:"blockNumber"`
|
||
From common.Address `json:"from"`
|
||
Gas *rpc.HexNumber `json:"gas"`
|
||
GasPrice *rpc.HexNumber `json:"gasPrice"`
|
||
Hash common.Hash `json:"hash"`
|
||
Input rpc.HexBytes `json:"input"`
|
||
Nonce *rpc.HexNumber `json:"nonce"`
|
||
To *common.Address `json:"to"`
|
||
TransactionIndex *rpc.HexNumber `json:"transactionIndex"`
|
||
Value *rpc.HexNumber `json:"value"`
|
||
V *rpc.HexNumber `json:"v"`
|
||
R *rpc.HexNumber `json:"r"`
|
||
S *rpc.HexNumber `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 := types.SignatureValues(signer, tx)
|
||
return &RPCTransaction{
|
||
From: from,
|
||
Gas: rpc.NewHexNumber(tx.Gas()),
|
||
GasPrice: rpc.NewHexNumber(tx.GasPrice()),
|
||
Hash: tx.Hash(),
|
||
Input: rpc.HexBytes(tx.Data()),
|
||
Nonce: rpc.NewHexNumber(tx.Nonce()),
|
||
To: tx.To(),
|
||
Value: rpc.NewHexNumber(tx.Value()),
|
||
V: rpc.NewHexNumber(v),
|
||
R: rpc.NewHexNumber(r),
|
||
S: rpc.NewHexNumber(s),
|
||
}
|
||
}
|
||
|
||
// newRPCTransaction returns a transaction that will serialize to the RPC representation.
|
||
func newRPCTransactionFromBlockIndex(b *types.Block, txIndex int) (*RPCTransaction, error) {
|
||
if txIndex >= 0 && txIndex < 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: rpc.NewHexNumber(b.Number()),
|
||
From: from,
|
||
Gas: rpc.NewHexNumber(tx.Gas()),
|
||
GasPrice: rpc.NewHexNumber(tx.GasPrice()),
|
||
Hash: tx.Hash(),
|
||
Input: rpc.HexBytes(tx.Data()),
|
||
Nonce: rpc.NewHexNumber(tx.Nonce()),
|
||
To: tx.To(),
|
||
TransactionIndex: rpc.NewHexNumber(txIndex),
|
||
Value: rpc.NewHexNumber(tx.Value()),
|
||
V: rpc.NewHexNumber(v),
|
||
R: rpc.NewHexNumber(r),
|
||
S: rpc.NewHexNumber(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 int) (rpc.HexBytes, error) {
|
||
if txIndex >= 0 && txIndex < 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, 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) *rpc.HexNumber {
|
||
if block, _ := s.b.BlockByNumber(ctx, blockNr); block != nil {
|
||
return rpc.NewHexNumber(len(block.Transactions()))
|
||
}
|
||
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) *rpc.HexNumber {
|
||
if block, _ := s.b.GetBlock(ctx, blockHash); block != nil {
|
||
return rpc.NewHexNumber(len(block.Transactions()))
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetTransactionByBlockNumberAndIndex returns the transaction for the given block number and index.
|
||
func (s *PublicTransactionPoolAPI) GetTransactionByBlockNumberAndIndex(ctx context.Context, blockNr rpc.BlockNumber, index rpc.HexNumber) (*RPCTransaction, error) {
|
||
if block, _ := s.b.BlockByNumber(ctx, blockNr); block != nil {
|
||
return newRPCTransactionFromBlockIndex(block, index.Int())
|
||
}
|
||
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 rpc.HexNumber) (*RPCTransaction, error) {
|
||
if block, _ := s.b.GetBlock(ctx, blockHash); block != nil {
|
||
return newRPCTransactionFromBlockIndex(block, index.Int())
|
||
}
|
||
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 rpc.HexNumber) (rpc.HexBytes, error) {
|
||
if block, _ := s.b.BlockByNumber(ctx, blockNr); block != nil {
|
||
return newRPCRawTransactionFromBlockIndex(block, index.Int())
|
||
}
|
||
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 rpc.HexNumber) (rpc.HexBytes, error) {
|
||
if block, _ := s.b.GetBlock(ctx, blockHash); block != nil {
|
||
return newRPCRawTransactionFromBlockIndex(block, index.Int())
|
||
}
|
||
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) (*rpc.HexNumber, 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 rpc.NewHexNumber(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 {
|
||
glog.V(logger.Debug).Infof("%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 {
|
||
glog.V(logger.Debug).Infof("%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) (rpc.HexBytes, error) {
|
||
var tx *types.Transaction
|
||
var err error
|
||
|
||
if tx, _, err = getTransaction(s.b.ChainDb(), s.b, txHash); err != nil {
|
||
glog.V(logger.Debug).Infof("%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 {
|
||
glog.V(logger.Debug).Infof("receipt not found for transaction %s", txHash.Hex())
|
||
return nil, nil
|
||
}
|
||
|
||
tx, _, err := getTransaction(s.b.ChainDb(), s.b, txHash)
|
||
if err != nil {
|
||
glog.V(logger.Debug).Infof("%v\n", err)
|
||
return nil, nil
|
||
}
|
||
|
||
txBlock, blockIndex, index, err := getTransactionBlockData(s.b.ChainDb(), txHash)
|
||
if err != nil {
|
||
glog.V(logger.Debug).Infof("%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": rpc.HexBytes(receipt.PostState),
|
||
"blockHash": txBlock,
|
||
"blockNumber": rpc.NewHexNumber(blockIndex),
|
||
"transactionHash": txHash,
|
||
"transactionIndex": rpc.NewHexNumber(index),
|
||
"from": from,
|
||
"to": tx.To(),
|
||
"gasUsed": rpc.NewHexNumber(receipt.GasUsed),
|
||
"cumulativeGasUsed": rpc.NewHexNumber(receipt.CumulativeGasUsed),
|
||
"contractAddress": nil,
|
||
"logs": receipt.Logs,
|
||
"logsBloom": receipt.Bloom,
|
||
}
|
||
if receipt.Logs == nil {
|
||
fields["logs"] = []vm.Logs{}
|
||
}
|
||
// 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) {
|
||
signer := types.MakeSigner(s.b.ChainConfig(), s.b.CurrentBlock().Number())
|
||
|
||
signature, err := s.b.AccountManager().SignEthereum(addr, signer.Hash(tx).Bytes())
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
return tx.WithSignature(signer, signature)
|
||
}
|
||
|
||
// 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 *rpc.HexNumber `json:"gas"`
|
||
GasPrice *rpc.HexNumber `json:"gasPrice"`
|
||
Value *rpc.HexNumber `json:"value"`
|
||
Data string `json:"data"`
|
||
Nonce *rpc.HexNumber `json:"nonce"`
|
||
}
|
||
|
||
// prepareSendTxArgs is a helper function that fills in default values for unspecified tx fields.
|
||
func prepareSendTxArgs(ctx context.Context, args SendTxArgs, b Backend) (SendTxArgs, error) {
|
||
if args.Gas == nil {
|
||
args.Gas = rpc.NewHexNumber(defaultGas)
|
||
}
|
||
if args.GasPrice == nil {
|
||
price, err := b.SuggestPrice(ctx)
|
||
if err != nil {
|
||
return args, err
|
||
}
|
||
args.GasPrice = rpc.NewHexNumber(price)
|
||
}
|
||
if args.Value == nil {
|
||
args.Value = rpc.NewHexNumber(0)
|
||
}
|
||
return args, nil
|
||
}
|
||
|
||
// submitTransaction is a helper function that submits tx to txPool and creates a log entry.
|
||
func submitTransaction(ctx context.Context, b Backend, tx *types.Transaction, signature []byte) (common.Hash, error) {
|
||
signer := types.MakeSigner(b.ChainConfig(), b.CurrentBlock().Number())
|
||
|
||
signedTx, err := tx.WithSignature(signer, signature)
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
|
||
if err := b.SendTx(ctx, signedTx); err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
|
||
if signedTx.To() == nil {
|
||
from, _ := types.Sender(signer, signedTx)
|
||
addr := crypto.CreateAddress(from, signedTx.Nonce())
|
||
glog.V(logger.Info).Infof("Tx(%s) created: %s\n", signedTx.Hash().Hex(), addr.Hex())
|
||
} else {
|
||
glog.V(logger.Info).Infof("Tx(%s) to: %s\n", signedTx.Hash().Hex(), tx.To().Hex())
|
||
}
|
||
|
||
return signedTx.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) {
|
||
var err error
|
||
args, err = prepareSendTxArgs(ctx, args, s.b)
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
|
||
if args.Nonce == nil {
|
||
nonce, err := s.b.GetPoolNonce(ctx, args.From)
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
args.Nonce = rpc.NewHexNumber(nonce)
|
||
}
|
||
|
||
var tx *types.Transaction
|
||
if args.To == nil {
|
||
tx = types.NewContractCreation(args.Nonce.Uint64(), args.Value.BigInt(), args.Gas.BigInt(), args.GasPrice.BigInt(), common.FromHex(args.Data))
|
||
} else {
|
||
tx = types.NewTransaction(args.Nonce.Uint64(), *args.To, args.Value.BigInt(), args.Gas.BigInt(), args.GasPrice.BigInt(), common.FromHex(args.Data))
|
||
}
|
||
|
||
signer := types.MakeSigner(s.b.ChainConfig(), s.b.CurrentBlock().Number())
|
||
signature, err := s.b.AccountManager().SignEthereum(args.From, signer.Hash(tx).Bytes())
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
|
||
return submitTransaction(ctx, s.b, tx, signature)
|
||
}
|
||
|
||
// 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 string) (string, error) {
|
||
tx := new(types.Transaction)
|
||
if err := rlp.DecodeBytes(common.FromHex(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())
|
||
glog.V(logger.Info).Infof("Tx(%x) created: %x\n", tx.Hash(), addr)
|
||
} else {
|
||
glog.V(logger.Info).Infof("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).
|
||
//
|
||
// 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, message string) (string, error) {
|
||
hash := signHash(message)
|
||
signature, err := s.b.AccountManager().SignEthereum(addr, hash)
|
||
return common.ToHex(signature), err
|
||
}
|
||
|
||
// SignTransactionArgs represents the arguments to sign a transaction.
|
||
type SignTransactionArgs struct {
|
||
From common.Address
|
||
To *common.Address
|
||
Nonce *rpc.HexNumber
|
||
Value *rpc.HexNumber
|
||
Gas *rpc.HexNumber
|
||
GasPrice *rpc.HexNumber
|
||
Data string
|
||
|
||
BlockNumber int64
|
||
}
|
||
|
||
// Tx is a helper object for argument and return values
|
||
type Tx struct {
|
||
tx *types.Transaction
|
||
|
||
To *common.Address `json:"to"`
|
||
From common.Address `json:"from"`
|
||
Nonce *rpc.HexNumber `json:"nonce"`
|
||
Value *rpc.HexNumber `json:"value"`
|
||
Data string `json:"data"`
|
||
GasLimit *rpc.HexNumber `json:"gas"`
|
||
GasPrice *rpc.HexNumber `json:"gasPrice"`
|
||
Hash common.Hash `json:"hash"`
|
||
}
|
||
|
||
// UnmarshalJSON parses JSON data into tx.
|
||
func (tx *Tx) UnmarshalJSON(b []byte) (err error) {
|
||
req := struct {
|
||
To *common.Address `json:"to"`
|
||
From common.Address `json:"from"`
|
||
Nonce *rpc.HexNumber `json:"nonce"`
|
||
Value *rpc.HexNumber `json:"value"`
|
||
Data string `json:"data"`
|
||
GasLimit *rpc.HexNumber `json:"gas"`
|
||
GasPrice *rpc.HexNumber `json:"gasPrice"`
|
||
Hash common.Hash `json:"hash"`
|
||
}{}
|
||
|
||
if err := json.Unmarshal(b, &req); err != nil {
|
||
return err
|
||
}
|
||
|
||
tx.To = req.To
|
||
tx.From = req.From
|
||
tx.Nonce = req.Nonce
|
||
tx.Value = req.Value
|
||
tx.Data = req.Data
|
||
tx.GasLimit = req.GasLimit
|
||
tx.GasPrice = req.GasPrice
|
||
tx.Hash = req.Hash
|
||
|
||
data := common.Hex2Bytes(tx.Data)
|
||
|
||
if tx.Nonce == nil {
|
||
return fmt.Errorf("need nonce")
|
||
}
|
||
if tx.Value == nil {
|
||
tx.Value = rpc.NewHexNumber(0)
|
||
}
|
||
if tx.GasLimit == nil {
|
||
tx.GasLimit = rpc.NewHexNumber(0)
|
||
}
|
||
if tx.GasPrice == nil {
|
||
tx.GasPrice = rpc.NewHexNumber(int64(50000000000))
|
||
}
|
||
|
||
if req.To == nil {
|
||
tx.tx = types.NewContractCreation(tx.Nonce.Uint64(), tx.Value.BigInt(), tx.GasLimit.BigInt(), tx.GasPrice.BigInt(), data)
|
||
} else {
|
||
tx.tx = types.NewTransaction(tx.Nonce.Uint64(), *tx.To, tx.Value.BigInt(), tx.GasLimit.BigInt(), tx.GasPrice.BigInt(), data)
|
||
}
|
||
|
||
return nil
|
||
}
|
||
|
||
// SignTransactionResult represents a RLP encoded signed transaction.
|
||
type SignTransactionResult struct {
|
||
Raw string `json:"raw"`
|
||
Tx *Tx `json:"tx"`
|
||
}
|
||
|
||
func newTx(t *types.Transaction) *Tx {
|
||
var signer types.Signer = types.HomesteadSigner{}
|
||
if t.Protected() {
|
||
signer = types.NewEIP155Signer(t.ChainId())
|
||
}
|
||
|
||
from, _ := types.Sender(signer, t)
|
||
return &Tx{
|
||
tx: t,
|
||
To: t.To(),
|
||
From: from,
|
||
Value: rpc.NewHexNumber(t.Value()),
|
||
Nonce: rpc.NewHexNumber(t.Nonce()),
|
||
Data: "0x" + common.Bytes2Hex(t.Data()),
|
||
GasLimit: rpc.NewHexNumber(t.Gas()),
|
||
GasPrice: rpc.NewHexNumber(t.GasPrice()),
|
||
Hash: t.Hash(),
|
||
}
|
||
}
|
||
|
||
// 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 SignTransactionArgs) (*SignTransactionResult, error) {
|
||
if args.Gas == nil {
|
||
args.Gas = rpc.NewHexNumber(defaultGas)
|
||
}
|
||
if args.GasPrice == nil {
|
||
price, err := s.b.SuggestPrice(ctx)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
args.GasPrice = rpc.NewHexNumber(price)
|
||
}
|
||
if args.Value == nil {
|
||
args.Value = rpc.NewHexNumber(0)
|
||
}
|
||
|
||
if args.Nonce == nil {
|
||
nonce, err := s.b.GetPoolNonce(ctx, args.From)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
args.Nonce = rpc.NewHexNumber(nonce)
|
||
}
|
||
|
||
var tx *types.Transaction
|
||
if args.To == nil {
|
||
tx = types.NewContractCreation(args.Nonce.Uint64(), args.Value.BigInt(), args.Gas.BigInt(), args.GasPrice.BigInt(), common.FromHex(args.Data))
|
||
} else {
|
||
tx = types.NewTransaction(args.Nonce.Uint64(), *args.To, args.Value.BigInt(), args.Gas.BigInt(), args.GasPrice.BigInt(), common.FromHex(args.Data))
|
||
}
|
||
|
||
signedTx, err := s.sign(args.From, tx)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
data, err := rlp.EncodeToBytes(signedTx)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
return &SignTransactionResult{"0x" + common.Bytes2Hex(data), newTx(signedTx)}, 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 s.b.AccountManager().HasAddress(from) {
|
||
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, tx Tx, gasPrice, gasLimit *rpc.HexNumber) (common.Hash, error) {
|
||
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())
|
||
}
|
||
|
||
if pFrom, err := types.Sender(signer, p); err == nil && pFrom == tx.From && signer.Hash(p) == signer.Hash(tx.tx) {
|
||
if gasPrice == nil {
|
||
gasPrice = rpc.NewHexNumber(tx.tx.GasPrice())
|
||
}
|
||
if gasLimit == nil {
|
||
gasLimit = rpc.NewHexNumber(tx.tx.Gas())
|
||
}
|
||
|
||
var newTx *types.Transaction
|
||
if tx.tx.To() == nil {
|
||
newTx = types.NewContractCreation(tx.tx.Nonce(), tx.tx.Value(), gasLimit.BigInt(), gasPrice.BigInt(), tx.tx.Data())
|
||
} else {
|
||
newTx = types.NewTransaction(tx.tx.Nonce(), *tx.tx.To(), tx.tx.Value(), gasLimit.BigInt(), gasPrice.BigInt(), tx.tx.Data())
|
||
}
|
||
|
||
signedTx, err := s.sign(tx.From, newTx)
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
|
||
s.b.RemoveTx(tx.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", tx.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++ {
|
||
glog.V(logger.Info).Infof("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 {
|
||
glog.Errorf("compaction error: %v", err)
|
||
return err
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// SetHead rewinds the head of the blockchain to a previous block.
|
||
func (api *PrivateDebugAPI) SetHead(number rpc.HexNumber) {
|
||
api.b.SetHead(uint64(number.Int64()))
|
||
}
|
||
|
||
// 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() *rpc.HexNumber {
|
||
return rpc.NewHexNumber(s.net.PeerCount())
|
||
}
|
||
|
||
// Version returns the current ethereum protocol version.
|
||
func (s *PublicNetAPI) Version() string {
|
||
return fmt.Sprintf("%d", s.networkVersion)
|
||
}
|