aboutsummaryrefslogtreecommitdiffstats
path: root/internal/ethapi/api.go
diff options
context:
space:
mode:
Diffstat (limited to 'internal/ethapi/api.go')
-rw-r--r--internal/ethapi/api.go1542
1 files changed, 1542 insertions, 0 deletions
diff --git a/internal/ethapi/api.go b/internal/ethapi/api.go
new file mode 100644
index 000000000..6e888fc93
--- /dev/null
+++ b/internal/ethapi/api.go
@@ -0,0 +1,1542 @@
+// 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"
+ "errors"
+ "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/common/compiler"
+ "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
+ solcPath *string
+ solc **compiler.Solidity
+}
+
+// NewPublicEthereumAPI creates a new Etheruem protocol API.
+func NewPublicEthereumAPI(b Backend, solcPath *string, solc **compiler.Solidity) *PublicEthereumAPI {
+ return &PublicEthereumAPI{b, solcPath, solc}
+}
+
+// GasPrice returns a suggestion for a gas price.
+func (s *PublicEthereumAPI) GasPrice(ctx context.Context) (*big.Int, error) {
+ return s.b.SuggestPrice(ctx)
+}
+
+func (s *PublicEthereumAPI) getSolc() (*compiler.Solidity, error) {
+ var err error
+ solc := *s.solc
+ if solc == nil {
+ solc, err = compiler.New(*s.solcPath)
+ }
+ return solc, err
+}
+
+// GetCompilers returns the collection of available smart contract compilers
+func (s *PublicEthereumAPI) GetCompilers() ([]string, error) {
+ solc, err := s.getSolc()
+ if err == nil && solc != nil {
+ return []string{"Solidity"}, nil
+ }
+
+ return []string{}, nil
+}
+
+// CompileSolidity compiles the given solidity source
+func (s *PublicEthereumAPI) CompileSolidity(source string) (map[string]*compiler.Contract, error) {
+ solc, err := s.getSolc()
+ if err != nil {
+ return nil, err
+ }
+
+ if solc == nil {
+ return nil, errors.New("solc (solidity compiler) not found")
+ }
+
+ return solc.Compile(source)
+}
+
+// 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
+}
+
+// SignAndSendTransaction 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) SignAndSendTransaction(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)
+}
+
+// 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
+ nonce uint64
+ 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 m.nonce }
+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)
+}
+
+// PrivateAdminAPI is the collection of Etheruem APIs exposed over the private
+// admin endpoint.
+type PrivateAdminAPI struct {
+ b Backend
+ solcPath *string
+ solc **compiler.Solidity
+}
+
+// NewPrivateAdminAPI creates a new API definition for the private admin methods
+// of the Ethereum service.
+func NewPrivateAdminAPI(b Backend, solcPath *string, solc **compiler.Solidity) *PrivateAdminAPI {
+ return &PrivateAdminAPI{b, solcPath, solc}
+}
+
+// SetSolc sets the Solidity compiler path to be used by the node.
+func (api *PrivateAdminAPI) SetSolc(path string) (string, error) {
+ var err error
+ *api.solcPath = path
+ *api.solc, err = compiler.New(path)
+ if err != nil {
+ return "", err
+ }
+ return (*api.solc).Info(), nil
+}
+
+// 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)
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 02:49:58 +0800