diff options
Diffstat (limited to 'internal')
| -rw-r--r-- | internal/ethapi/api.go | 1548 | ||||
| -rw-r--r-- | internal/ethapi/backend.go | 119 | ||||
| -rw-r--r-- | internal/jsre/pretty.go | 2 | ||||
| -rw-r--r-- | internal/web3ext/web3ext.go | 4 |
4 files changed, 1670 insertions, 3 deletions
diff --git a/internal/ethapi/api.go b/internal/ethapi/api.go new file mode 100644 index 000000000..88bacc45b --- /dev/null +++ b/internal/ethapi/api.go @@ -0,0 +1,1548 @@ +// 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 +} + +// 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) +} + +// 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) +} diff --git a/internal/ethapi/backend.go b/internal/ethapi/backend.go new file mode 100644 index 000000000..d112a6aef --- /dev/null +++ b/internal/ethapi/backend.go @@ -0,0 +1,119 @@ +// 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 implements the general Ethereum API functions. +package ethapi + +import ( + "math/big" + + "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/eth/downloader" + "github.com/ethereum/go-ethereum/ethdb" + "github.com/ethereum/go-ethereum/event" + "github.com/ethereum/go-ethereum/rpc" + "golang.org/x/net/context" +) + +// Backend interface provides the common API services (that are provided by +// both full and light clients) with access to necessary functions. +type Backend interface { + // general Ethereum API + Downloader() *downloader.Downloader + ProtocolVersion() int + SuggestPrice(ctx context.Context) (*big.Int, error) + ChainDb() ethdb.Database + EventMux() *event.TypeMux + AccountManager() *accounts.Manager + // BlockChain API + SetHead(number uint64) + HeaderByNumber(blockNr rpc.BlockNumber) *types.Header + BlockByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Block, error) + StateAndHeaderByNumber(blockNr rpc.BlockNumber) (State, *types.Header, error) + GetBlock(ctx context.Context, blockHash common.Hash) (*types.Block, error) + GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error) + GetTd(blockHash common.Hash) *big.Int + GetVMEnv(ctx context.Context, msg core.Message, state State, header *types.Header) (vm.Environment, func() error, error) + // TxPool API + SendTx(ctx context.Context, signedTx *types.Transaction) error + RemoveTx(txHash common.Hash) + GetPoolTransactions() types.Transactions + GetPoolTransaction(txHash common.Hash) *types.Transaction + GetPoolNonce(ctx context.Context, addr common.Address) (uint64, error) + Stats() (pending int, queued int) + TxPoolContent() (map[common.Address]map[uint64][]*types.Transaction, map[common.Address]map[uint64][]*types.Transaction) +} + +type State interface { + GetBalance(ctx context.Context, addr common.Address) (*big.Int, error) + GetCode(ctx context.Context, addr common.Address) ([]byte, error) + GetState(ctx context.Context, a common.Address, b common.Hash) (common.Hash, error) + GetNonce(ctx context.Context, addr common.Address) (uint64, error) +} + +func GetAPIs(apiBackend Backend, solcPath *string, solc **compiler.Solidity) []rpc.API { + return []rpc.API{ + { + Namespace: "eth", + Version: "1.0", + Service: NewPublicEthereumAPI(apiBackend, solcPath, solc), + Public: true, + }, { + Namespace: "eth", + Version: "1.0", + Service: NewPublicBlockChainAPI(apiBackend), + Public: true, + }, { + Namespace: "eth", + Version: "1.0", + Service: NewPublicTransactionPoolAPI(apiBackend), + Public: true, + }, { + Namespace: "txpool", + Version: "1.0", + Service: NewPublicTxPoolAPI(apiBackend), + Public: true, + }, { + Namespace: "admin", + Version: "1.0", + Service: NewPrivateAdminAPI(apiBackend, solcPath, solc), + }, { + Namespace: "debug", + Version: "1.0", + Service: NewPublicDebugAPI(apiBackend), + Public: true, + }, { + Namespace: "debug", + Version: "1.0", + Service: NewPrivateDebugAPI(apiBackend), + }, { + Namespace: "eth", + Version: "1.0", + Service: NewPublicAccountAPI(apiBackend.AccountManager()), + Public: true, + }, { + Namespace: "personal", + Version: "1.0", + Service: NewPrivateAccountAPI(apiBackend), + Public: false, + }, + } +} diff --git a/internal/jsre/pretty.go b/internal/jsre/pretty.go index 30d8660ff..f32e16243 100644 --- a/internal/jsre/pretty.go +++ b/internal/jsre/pretty.go @@ -116,7 +116,7 @@ func (ctx ppctx) printValue(v otto.Value, level int, inArray bool) { func (ctx ppctx) printObject(obj *otto.Object, level int, inArray bool) { switch obj.Class() { - case "Array": + case "Array", "GoArray": lv, _ := obj.Get("length") len, _ := lv.ToInteger() if len == 0 { diff --git a/internal/web3ext/web3ext.go b/internal/web3ext/web3ext.go index d45ce6581..e76e15177 100644 --- a/internal/web3ext/web3ext.go +++ b/internal/web3ext/web3ext.go @@ -423,8 +423,8 @@ web3._extend({ params: 2 }), new web3._extend.Method({ - name: 'signAndSendTransaction', - call: 'personal_signAndSendTransaction', + name: 'sendTransaction', + call: 'personal_sendTransaction', params: 2, inputFormatter: [web3._extend.formatters.inputTransactionFormatter, null] }) |