1a9e66915b
Support for legacy version 0.9.x is gone. The compiler version is no longer cached. Compilation results (and the version) are read directly from stdout using the --combined-json flag. As a workaround for ethereum/solidity#651, source code is written to a temporary file before compilation. Integration of solc in package ethapi and cmd/abigen is now much simpler because the compiler wrapper is no longer passed around as a pointer. Fixes #2806, accidentally
1487 lines
49 KiB
Go
1487 lines
49 KiB
Go
// Copyright 2016 The go-ethereum Authors
|
||
// This file is part of the go-ethereum library.
|
||
//
|
||
// The go-ethereum library is free software: you can redistribute it and/or modify
|
||
// it under the terms of the GNU Lesser General Public License as published by
|
||
// the Free Software Foundation, either version 3 of the License, or
|
||
// (at your option) any later version.
|
||
//
|
||
// The go-ethereum library is distributed in the hope that it will be useful,
|
||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
// GNU Lesser General Public License for more details.
|
||
//
|
||
// You should have received a copy of the GNU Lesser General Public License
|
||
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
||
|
||
package ethapi
|
||
|
||
import (
|
||
"bytes"
|
||
"encoding/hex"
|
||
"encoding/json"
|
||
"fmt"
|
||
"math/big"
|
||
"strings"
|
||
"sync"
|
||
"time"
|
||
|
||
"github.com/ethereum/ethash"
|
||
"github.com/ethereum/go-ethereum/accounts"
|
||
"github.com/ethereum/go-ethereum/common"
|
||
"github.com/ethereum/go-ethereum/core"
|
||
"github.com/ethereum/go-ethereum/core/types"
|
||
"github.com/ethereum/go-ethereum/core/vm"
|
||
"github.com/ethereum/go-ethereum/crypto"
|
||
"github.com/ethereum/go-ethereum/ethdb"
|
||
"github.com/ethereum/go-ethereum/logger"
|
||
"github.com/ethereum/go-ethereum/logger/glog"
|
||
"github.com/ethereum/go-ethereum/p2p"
|
||
"github.com/ethereum/go-ethereum/rlp"
|
||
"github.com/ethereum/go-ethereum/rpc"
|
||
"github.com/syndtr/goleveldb/leveldb"
|
||
"golang.org/x/net/context"
|
||
)
|
||
|
||
const defaultGas = uint64(90000)
|
||
|
||
// PublicEthereumAPI provides an API to access Ethereum related information.
|
||
// It offers only methods that operate on public data that is freely available to anyone.
|
||
type PublicEthereumAPI struct {
|
||
b Backend
|
||
}
|
||
|
||
// NewPublicEthereumAPI creates a new Etheruem protocol API.
|
||
func NewPublicEthereumAPI(b Backend) *PublicEthereumAPI {
|
||
return &PublicEthereumAPI{b}
|
||
}
|
||
|
||
// GasPrice returns a suggestion for a gas price.
|
||
func (s *PublicEthereumAPI) GasPrice(ctx context.Context) (*big.Int, error) {
|
||
return s.b.SuggestPrice(ctx)
|
||
}
|
||
|
||
// ProtocolVersion returns the current Ethereum protocol version this node supports
|
||
func (s *PublicEthereumAPI) ProtocolVersion() *rpc.HexNumber {
|
||
return rpc.NewHexNumber(s.b.ProtocolVersion())
|
||
}
|
||
|
||
// Syncing returns false in case the node is currently not syncing with the network. It can be up to date or has not
|
||
// yet received the latest block headers from its pears. In case it is synchronizing:
|
||
// - startingBlock: block number this node started to synchronise from
|
||
// - currentBlock: block number this node is currently importing
|
||
// - highestBlock: block number of the highest block header this node has received from peers
|
||
// - pulledStates: number of state entries processed until now
|
||
// - knownStates: number of known state entries that still need to be pulled
|
||
func (s *PublicEthereumAPI) Syncing() (interface{}, error) {
|
||
origin, current, height, pulled, known := s.b.Downloader().Progress()
|
||
|
||
// Return not syncing if the synchronisation already completed
|
||
if current >= height {
|
||
return false, nil
|
||
}
|
||
// Otherwise gather the block sync stats
|
||
return map[string]interface{}{
|
||
"startingBlock": rpc.NewHexNumber(origin),
|
||
"currentBlock": rpc.NewHexNumber(current),
|
||
"highestBlock": rpc.NewHexNumber(height),
|
||
"pulledStates": rpc.NewHexNumber(pulled),
|
||
"knownStates": rpc.NewHexNumber(known),
|
||
}, nil
|
||
}
|
||
|
||
// PublicTxPoolAPI offers and API for the transaction pool. It only operates on data that is non confidential.
|
||
type PublicTxPoolAPI struct {
|
||
b Backend
|
||
}
|
||
|
||
// NewPublicTxPoolAPI creates a new tx pool service that gives information about the transaction pool.
|
||
func NewPublicTxPoolAPI(b Backend) *PublicTxPoolAPI {
|
||
return &PublicTxPoolAPI{b}
|
||
}
|
||
|
||
// Content returns the transactions contained within the transaction pool.
|
||
func (s *PublicTxPoolAPI) Content() map[string]map[string]map[string][]*RPCTransaction {
|
||
content := map[string]map[string]map[string][]*RPCTransaction{
|
||
"pending": make(map[string]map[string][]*RPCTransaction),
|
||
"queued": make(map[string]map[string][]*RPCTransaction),
|
||
}
|
||
pending, queue := s.b.TxPoolContent()
|
||
|
||
// Flatten the pending transactions
|
||
for account, batches := range pending {
|
||
dump := make(map[string][]*RPCTransaction)
|
||
for nonce, txs := range batches {
|
||
nonce := fmt.Sprintf("%d", nonce)
|
||
for _, tx := range txs {
|
||
dump[nonce] = append(dump[nonce], newRPCPendingTransaction(tx))
|
||
}
|
||
}
|
||
content["pending"][account.Hex()] = dump
|
||
}
|
||
// Flatten the queued transactions
|
||
for account, batches := range queue {
|
||
dump := make(map[string][]*RPCTransaction)
|
||
for nonce, txs := range batches {
|
||
nonce := fmt.Sprintf("%d", nonce)
|
||
for _, tx := range txs {
|
||
dump[nonce] = append(dump[nonce], newRPCPendingTransaction(tx))
|
||
}
|
||
}
|
||
content["queued"][account.Hex()] = dump
|
||
}
|
||
return content
|
||
}
|
||
|
||
// Status returns the number of pending and queued transaction in the pool.
|
||
func (s *PublicTxPoolAPI) Status() map[string]*rpc.HexNumber {
|
||
pending, queue := s.b.Stats()
|
||
return map[string]*rpc.HexNumber{
|
||
"pending": rpc.NewHexNumber(pending),
|
||
"queued": rpc.NewHexNumber(queue),
|
||
}
|
||
}
|
||
|
||
// Inspect retrieves the content of the transaction pool and flattens it into an
|
||
// easily inspectable list.
|
||
func (s *PublicTxPoolAPI) Inspect() map[string]map[string]map[string][]string {
|
||
content := map[string]map[string]map[string][]string{
|
||
"pending": make(map[string]map[string][]string),
|
||
"queued": make(map[string]map[string][]string),
|
||
}
|
||
pending, queue := s.b.TxPoolContent()
|
||
|
||
// Define a formatter to flatten a transaction into a string
|
||
var format = func(tx *types.Transaction) string {
|
||
if to := tx.To(); to != nil {
|
||
return fmt.Sprintf("%s: %v wei + %v × %v gas", tx.To().Hex(), tx.Value(), tx.Gas(), tx.GasPrice())
|
||
}
|
||
return fmt.Sprintf("contract creation: %v wei + %v × %v gas", tx.Value(), tx.Gas(), tx.GasPrice())
|
||
}
|
||
// Flatten the pending transactions
|
||
for account, batches := range pending {
|
||
dump := make(map[string][]string)
|
||
for nonce, txs := range batches {
|
||
nonce := fmt.Sprintf("%d", nonce)
|
||
for _, tx := range txs {
|
||
dump[nonce] = append(dump[nonce], format(tx))
|
||
}
|
||
}
|
||
content["pending"][account.Hex()] = dump
|
||
}
|
||
// Flatten the queued transactions
|
||
for account, batches := range queue {
|
||
dump := make(map[string][]string)
|
||
for nonce, txs := range batches {
|
||
nonce := fmt.Sprintf("%d", nonce)
|
||
for _, tx := range txs {
|
||
dump[nonce] = append(dump[nonce], format(tx))
|
||
}
|
||
}
|
||
content["queued"][account.Hex()] = dump
|
||
}
|
||
return content
|
||
}
|
||
|
||
// PublicAccountAPI provides an API to access accounts managed by this node.
|
||
// It offers only methods that can retrieve accounts.
|
||
type PublicAccountAPI struct {
|
||
am *accounts.Manager
|
||
}
|
||
|
||
// NewPublicAccountAPI creates a new PublicAccountAPI.
|
||
func NewPublicAccountAPI(am *accounts.Manager) *PublicAccountAPI {
|
||
return &PublicAccountAPI{am: am}
|
||
}
|
||
|
||
// Accounts returns the collection of accounts this node manages
|
||
func (s *PublicAccountAPI) Accounts() []accounts.Account {
|
||
return s.am.Accounts()
|
||
}
|
||
|
||
// PrivateAccountAPI provides an API to access accounts managed by this node.
|
||
// It offers methods to create, (un)lock en list accounts. Some methods accept
|
||
// passwords and are therefore considered private by default.
|
||
type PrivateAccountAPI struct {
|
||
am *accounts.Manager
|
||
b Backend
|
||
}
|
||
|
||
// NewPrivateAccountAPI create a new PrivateAccountAPI.
|
||
func NewPrivateAccountAPI(b Backend) *PrivateAccountAPI {
|
||
return &PrivateAccountAPI{
|
||
am: b.AccountManager(),
|
||
b: b,
|
||
}
|
||
}
|
||
|
||
// ListAccounts will return a list of addresses for accounts this node manages.
|
||
func (s *PrivateAccountAPI) ListAccounts() []common.Address {
|
||
accounts := s.am.Accounts()
|
||
addresses := make([]common.Address, len(accounts))
|
||
for i, acc := range accounts {
|
||
addresses[i] = acc.Address
|
||
}
|
||
return addresses
|
||
}
|
||
|
||
// NewAccount will create a new account and returns the address for the new account.
|
||
func (s *PrivateAccountAPI) NewAccount(password string) (common.Address, error) {
|
||
acc, err := s.am.NewAccount(password)
|
||
if err == nil {
|
||
return acc.Address, nil
|
||
}
|
||
return common.Address{}, err
|
||
}
|
||
|
||
// ImportRawKey stores the given hex encoded ECDSA key into the key directory,
|
||
// encrypting it with the passphrase.
|
||
func (s *PrivateAccountAPI) ImportRawKey(privkey string, password string) (common.Address, error) {
|
||
hexkey, err := hex.DecodeString(privkey)
|
||
if err != nil {
|
||
return common.Address{}, err
|
||
}
|
||
|
||
acc, err := s.am.ImportECDSA(crypto.ToECDSA(hexkey), password)
|
||
return acc.Address, err
|
||
}
|
||
|
||
// UnlockAccount will unlock the account associated with the given address with
|
||
// the given password for duration seconds. If duration is nil it will use a
|
||
// default of 300 seconds. It returns an indication if the account was unlocked.
|
||
func (s *PrivateAccountAPI) UnlockAccount(addr common.Address, password string, duration *rpc.HexNumber) (bool, error) {
|
||
if duration == nil {
|
||
duration = rpc.NewHexNumber(300)
|
||
}
|
||
a := accounts.Account{Address: addr}
|
||
d := time.Duration(duration.Int64()) * time.Second
|
||
if err := s.am.TimedUnlock(a, password, d); err != nil {
|
||
return false, err
|
||
}
|
||
return true, nil
|
||
}
|
||
|
||
// LockAccount will lock the account associated with the given address when it's unlocked.
|
||
func (s *PrivateAccountAPI) LockAccount(addr common.Address) bool {
|
||
return s.am.Lock(addr) == nil
|
||
}
|
||
|
||
// SendTransaction will create a transaction from the given arguments and
|
||
// tries to sign it with the key associated with args.To. If the given passwd isn't
|
||
// able to decrypt the key it fails.
|
||
func (s *PrivateAccountAPI) SendTransaction(ctx context.Context, args SendTxArgs, passwd string) (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))
|
||
}
|
||
|
||
signature, err := s.am.SignWithPassphrase(args.From, passwd, tx.SigHash().Bytes())
|
||
if err != nil {
|
||
return common.Hash{}, err
|
||
}
|
||
|
||
return submitTransaction(ctx, s.b, tx, signature)
|
||
}
|
||
|
||
// 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
|
||
muNewBlockSubscriptions sync.Mutex // protects newBlocksSubscriptions
|
||
newBlockSubscriptions map[string]func(core.ChainEvent) error // callbacks for new block subscriptions
|
||
}
|
||
|
||
// NewPublicBlockChainAPI creates a new Etheruem blockchain API.
|
||
func NewPublicBlockChainAPI(b Backend) *PublicBlockChainAPI {
|
||
api := &PublicBlockChainAPI{
|
||
b: b,
|
||
newBlockSubscriptions: make(map[string]func(core.ChainEvent) error),
|
||
}
|
||
|
||
go api.subscriptionLoop()
|
||
|
||
return api
|
||
}
|
||
|
||
// subscriptionLoop reads events from the global event mux and creates notifications for the matched subscriptions.
|
||
func (s *PublicBlockChainAPI) subscriptionLoop() {
|
||
sub := s.b.EventMux().Subscribe(core.ChainEvent{})
|
||
for event := range sub.Chan() {
|
||
if chainEvent, ok := event.Data.(core.ChainEvent); ok {
|
||
s.muNewBlockSubscriptions.Lock()
|
||
for id, notifyOf := range s.newBlockSubscriptions {
|
||
if notifyOf(chainEvent) == rpc.ErrNotificationNotFound {
|
||
delete(s.newBlockSubscriptions, id)
|
||
}
|
||
}
|
||
s.muNewBlockSubscriptions.Unlock()
|
||
}
|
||
}
|
||
}
|
||
|
||
// BlockNumber returns the block number of the chain head.
|
||
func (s *PublicBlockChainAPI) BlockNumber() *big.Int {
|
||
return s.b.HeaderByNumber(rpc.LatestBlockNumber).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(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
|
||
}
|
||
|
||
// NewBlocksArgs allows the user to specify if the returned block should include transactions and in which format.
|
||
type NewBlocksArgs struct {
|
||
IncludeTransactions bool `json:"includeTransactions"`
|
||
TransactionDetails bool `json:"transactionDetails"`
|
||
}
|
||
|
||
// NewBlocks triggers a new block event each time a block is appended to the chain. It accepts an argument which allows
|
||
// the caller to specify whether the output should contain transactions and in what format.
|
||
func (s *PublicBlockChainAPI) NewBlocks(ctx context.Context, args NewBlocksArgs) (rpc.Subscription, error) {
|
||
notifier, supported := rpc.NotifierFromContext(ctx)
|
||
if !supported {
|
||
return nil, rpc.ErrNotificationsUnsupported
|
||
}
|
||
|
||
// create a subscription that will remove itself when unsubscribed/cancelled
|
||
subscription, err := notifier.NewSubscription(func(subId string) {
|
||
s.muNewBlockSubscriptions.Lock()
|
||
delete(s.newBlockSubscriptions, subId)
|
||
s.muNewBlockSubscriptions.Unlock()
|
||
})
|
||
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
// add a callback that is called on chain events which will format the block and notify the client
|
||
s.muNewBlockSubscriptions.Lock()
|
||
s.newBlockSubscriptions[subscription.ID()] = func(e core.ChainEvent) error {
|
||
notification, err := s.rpcOutputBlock(e.Block, args.IncludeTransactions, args.TransactionDetails)
|
||
if err == nil {
|
||
return subscription.Notify(notification)
|
||
}
|
||
glog.V(logger.Warn).Info("unable to format block %v\n", err)
|
||
return nil
|
||
}
|
||
s.muNewBlockSubscriptions.Unlock()
|
||
return subscription, 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(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(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) {
|
||
state, header, err := s.b.StateAndHeaderByNumber(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
|
||
msg := callmsg{
|
||
addr: addr,
|
||
to: args.To,
|
||
gas: args.Gas.BigInt(),
|
||
gasPrice: args.GasPrice.BigInt(),
|
||
value: args.Value.BigInt(),
|
||
data: common.FromHex(args.Data),
|
||
}
|
||
|
||
if msg.gas.Cmp(common.Big0) == 0 {
|
||
msg.gas = big.NewInt(50000000)
|
||
}
|
||
|
||
if msg.gasPrice.Cmp(common.Big0) == 0 {
|
||
msg.gasPrice = new(big.Int).Mul(big.NewInt(50), common.Shannon)
|
||
}
|
||
|
||
// 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
|
||
}
|
||
|
||
// TraceCall executes a call and returns the amount of gas, created logs and optionally returned values.
|
||
func (s *PublicBlockChainAPI) TraceCall(ctx context.Context, args CallArgs, blockNr rpc.BlockNumber) (*ExecutionResult, error) {
|
||
state, header, err := s.b.StateAndHeaderByNumber(blockNr)
|
||
if state == nil || err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
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
|
||
msg := callmsg{
|
||
addr: addr,
|
||
to: args.To,
|
||
gas: args.Gas.BigInt(),
|
||
gasPrice: args.GasPrice.BigInt(),
|
||
value: args.Value.BigInt(),
|
||
data: common.FromHex(args.Data),
|
||
}
|
||
|
||
if msg.gas.Cmp(common.Big0) == 0 {
|
||
msg.gas = big.NewInt(50000000)
|
||
}
|
||
|
||
if msg.gasPrice.Cmp(common.Big0) == 0 {
|
||
msg.gasPrice = new(big.Int).Mul(big.NewInt(50), common.Shannon)
|
||
}
|
||
|
||
// Execute the call and return
|
||
vmenv, vmError, err := s.b.GetVMEnv(ctx, msg, state, header)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
gp := new(core.GasPool).AddGas(common.MaxBig)
|
||
ret, gas, err := core.ApplyMessage(vmenv, msg, gp)
|
||
if err := vmError(); err != nil {
|
||
return nil, err
|
||
}
|
||
return &ExecutionResult{
|
||
Gas: gas,
|
||
ReturnValue: fmt.Sprintf("%x", ret),
|
||
StructLogs: FormatLogs(vmenv.StructLogs()),
|
||
}, nil
|
||
}
|
||
|
||
// 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) {
|
||
fields := map[string]interface{}{
|
||
"number": rpc.NewHexNumber(b.Number()),
|
||
"hash": b.Hash(),
|
||
"parentHash": b.ParentHash(),
|
||
"nonce": b.Header().Nonce,
|
||
"sha3Uncles": b.UncleHash(),
|
||
"logsBloom": b.Bloom(),
|
||
"stateRoot": b.Root(),
|
||
"miner": b.Coinbase(),
|
||
"difficulty": rpc.NewHexNumber(b.Difficulty()),
|
||
"totalDifficulty": rpc.NewHexNumber(s.b.GetTd(b.Hash())),
|
||
"extraData": fmt.Sprintf("0x%x", b.Extra()),
|
||
"size": rpc.NewHexNumber(b.Size().Int64()),
|
||
"gasLimit": rpc.NewHexNumber(b.GasLimit()),
|
||
"gasUsed": rpc.NewHexNumber(b.GasUsed()),
|
||
"timestamp": rpc.NewHexNumber(b.Time()),
|
||
"transactionsRoot": b.TxHash(),
|
||
"receiptRoot": b.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 string `json:"input"`
|
||
Nonce *rpc.HexNumber `json:"nonce"`
|
||
To *common.Address `json:"to"`
|
||
TransactionIndex *rpc.HexNumber `json:"transactionIndex"`
|
||
Value *rpc.HexNumber `json:"value"`
|
||
}
|
||
|
||
// newRPCPendingTransaction returns a pending transaction that will serialize to the RPC representation
|
||
func newRPCPendingTransaction(tx *types.Transaction) *RPCTransaction {
|
||
from, _ := tx.FromFrontier()
|
||
|
||
return &RPCTransaction{
|
||
From: from,
|
||
Gas: rpc.NewHexNumber(tx.Gas()),
|
||
GasPrice: rpc.NewHexNumber(tx.GasPrice()),
|
||
Hash: tx.Hash(),
|
||
Input: fmt.Sprintf("0x%x", tx.Data()),
|
||
Nonce: rpc.NewHexNumber(tx.Nonce()),
|
||
To: tx.To(),
|
||
Value: rpc.NewHexNumber(tx.Value()),
|
||
}
|
||
}
|
||
|
||
// 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]
|
||
from, err := tx.FromFrontier()
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
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: fmt.Sprintf("0x%x", tx.Data()),
|
||
Nonce: rpc.NewHexNumber(tx.Nonce()),
|
||
To: tx.To(),
|
||
TransactionIndex: rpc.NewHexNumber(txIndex),
|
||
Value: rpc.NewHexNumber(tx.Value()),
|
||
}, nil
|
||
}
|
||
|
||
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
|
||
muPendingTxSubs sync.Mutex
|
||
pendingTxSubs map[string]rpc.Subscription
|
||
}
|
||
|
||
// NewPublicTransactionPoolAPI creates a new RPC service with methods specific for the transaction pool.
|
||
func NewPublicTransactionPoolAPI(b Backend) *PublicTransactionPoolAPI {
|
||
api := &PublicTransactionPoolAPI{
|
||
b: b,
|
||
pendingTxSubs: make(map[string]rpc.Subscription),
|
||
}
|
||
|
||
go api.subscriptionLoop()
|
||
|
||
return api
|
||
}
|
||
|
||
// subscriptionLoop listens for events on the global event mux and creates notifications for subscriptions.
|
||
func (s *PublicTransactionPoolAPI) subscriptionLoop() {
|
||
sub := s.b.EventMux().Subscribe(core.TxPreEvent{})
|
||
for event := range sub.Chan() {
|
||
tx := event.Data.(core.TxPreEvent)
|
||
if from, err := tx.Tx.FromFrontier(); err == nil {
|
||
if s.b.AccountManager().HasAddress(from) {
|
||
s.muPendingTxSubs.Lock()
|
||
for id, sub := range s.pendingTxSubs {
|
||
if sub.Notify(tx.Tx.Hash()) == rpc.ErrNotificationNotFound {
|
||
delete(s.pendingTxSubs, id)
|
||
}
|
||
}
|
||
s.muPendingTxSubs.Unlock()
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
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
|
||
}
|
||
|
||
// 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(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
|
||
}
|
||
|
||
// 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
|
||
}
|
||
|
||
from, err := tx.FromFrontier()
|
||
if err != nil {
|
||
glog.V(logger.Debug).Infof("%v\n", err)
|
||
return nil, nil
|
||
}
|
||
|
||
fields := map[string]interface{}{
|
||
"root": common.Bytes2Hex(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,
|
||
}
|
||
|
||
if receipt.Logs == nil {
|
||
fields["logs"] = []vm.Logs{}
|
||
}
|
||
|
||
// If the ContractAddress is 20 0x0 bytes, assume it is not a contract creation
|
||
if bytes.Compare(receipt.ContractAddress.Bytes(), bytes.Repeat([]byte{0}, 20)) != 0 {
|
||
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) {
|
||
signature, err := s.b.AccountManager().Sign(addr, tx.SigHash().Bytes())
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
return tx.WithSignature(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) {
|
||
signedTx, err := tx.WithSignature(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, _ := signedTx.From()
|
||
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))
|
||
}
|
||
|
||
signature, err := s.b.AccountManager().Sign(args.From, tx.SigHash().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
|
||
}
|
||
|
||
if tx.To() == nil {
|
||
from, err := tx.FromFrontier()
|
||
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 signs the given hash using the key that matches the address. The key must be
|
||
// unlocked in order to sign the hash.
|
||
func (s *PublicTransactionPoolAPI) Sign(addr common.Address, hash common.Hash) (string, error) {
|
||
signature, error := s.b.AccountManager().Sign(addr, hash[:])
|
||
return common.ToHex(signature), error
|
||
}
|
||
|
||
// 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 {
|
||
from, _ := t.FromFrontier()
|
||
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 {
|
||
from, _ := tx.FromFrontier()
|
||
if s.b.AccountManager().HasAddress(from) {
|
||
transactions = append(transactions, newRPCPendingTransaction(tx))
|
||
}
|
||
}
|
||
return transactions
|
||
}
|
||
|
||
// NewPendingTransactions creates a subscription that is triggered each time a transaction enters the transaction pool
|
||
// and is send from one of the transactions this nodes manages.
|
||
func (s *PublicTransactionPoolAPI) NewPendingTransactions(ctx context.Context) (rpc.Subscription, error) {
|
||
notifier, supported := rpc.NotifierFromContext(ctx)
|
||
if !supported {
|
||
return nil, rpc.ErrNotificationsUnsupported
|
||
}
|
||
|
||
subscription, err := notifier.NewSubscription(func(id string) {
|
||
s.muPendingTxSubs.Lock()
|
||
delete(s.pendingTxSubs, id)
|
||
s.muPendingTxSubs.Unlock()
|
||
})
|
||
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
s.muPendingTxSubs.Lock()
|
||
s.pendingTxSubs[subscription.ID()] = subscription
|
||
s.muPendingTxSubs.Unlock()
|
||
|
||
return subscription, 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 := s.b.GetPoolTransactions()
|
||
for _, p := range pending {
|
||
if pFrom, err := p.FromFrontier(); err == nil && pFrom == tx.From && p.SigHash() == tx.tx.SigHash() {
|
||
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(), gasPrice.BigInt(), gasLimit.BigInt(), tx.tx.Data())
|
||
} else {
|
||
newTx = types.NewTransaction(tx.tx.Nonce(), *tx.tx.To(), tx.tx.Value(), gasPrice.BigInt(), gasLimit.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)
|
||
}
|
||
|
||
// SetHead rewinds the head of the blockchain to a previous block.
|
||
func (api *PrivateDebugAPI) SetHead(number uint64) {
|
||
api.b.SetHead(number)
|
||
}
|
||
|
||
// PublicNetAPI offers network related RPC methods
|
||
type PublicNetAPI struct {
|
||
net *p2p.Server
|
||
networkVersion int
|
||
}
|
||
|
||
// NewPublicNetAPI creates a new net API instance.
|
||
func NewPublicNetAPI(net *p2p.Server, networkVersion int) *PublicNetAPI {
|
||
return &PublicNetAPI{net, networkVersion}
|
||
}
|
||
|
||
// Listening returns an indication if the node is listening for network connections.
|
||
func (s *PublicNetAPI) Listening() bool {
|
||
return true // always listening
|
||
}
|
||
|
||
// PeerCount returns the number of connected peers
|
||
func (s *PublicNetAPI) PeerCount() *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)
|
||
}
|