1457 lines
50 KiB
Go
1457 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 (
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hash = signHash(message)
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sig = common.FromHex(signature)
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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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// 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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rpk, err := crypto.Ecrecover(hash, sig)
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if err != nil {
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return common.Address{}, err
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}
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pubKey := crypto.ToECDSAPub(rpk)
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recoveredAddr := crypto.PubkeyToAddress(*pubKey)
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return recoveredAddr, nil
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}
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// SignAndSendTransaction was renamed to SendTransaction. This method is deprecated
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// and will be removed in the future. It primary goal is to give clients time to update.
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func (s *PrivateAccountAPI) SignAndSendTransaction(ctx context.Context, args SendTxArgs, passwd string) (common.Hash, error) {
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return s.SendTransaction(ctx, args, passwd)
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}
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// PublicBlockChainAPI provides an API to access the Ethereum blockchain.
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// It offers only methods that operate on public data that is freely available to anyone.
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type PublicBlockChainAPI struct {
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b Backend
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}
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// NewPublicBlockChainAPI creates a new Etheruem blockchain API.
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func NewPublicBlockChainAPI(b Backend) *PublicBlockChainAPI {
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return &PublicBlockChainAPI{b}
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}
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// BlockNumber returns the block number of the chain head.
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func (s *PublicBlockChainAPI) BlockNumber() *big.Int {
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header, _ := s.b.HeaderByNumber(context.Background(), rpc.LatestBlockNumber) // latest header should always be available
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return header.Number
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}
|
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|
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// GetBalance returns the amount of wei for the given address in the state of the
|
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// given block number. The rpc.LatestBlockNumber and rpc.PendingBlockNumber meta
|
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// block numbers are also allowed.
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func (s *PublicBlockChainAPI) GetBalance(ctx context.Context, address common.Address, blockNr rpc.BlockNumber) (*big.Int, error) {
|
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state, _, err := s.b.StateAndHeaderByNumber(ctx, blockNr)
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||
if state == nil || err != nil {
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||
return nil, err
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||
}
|
||
|
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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) {
|
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block, err := s.b.BlockByNumber(ctx, blockNr)
|
||
if block != nil {
|
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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"} {
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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 {
|
||
pending := s.b.GetPoolTransactions()
|
||
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
|
||
}
|
||
|
||
// 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 := s.b.GetPoolTransactions()
|
||
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)
|
||
}
|