328 lines
7.8 KiB
Go
328 lines
7.8 KiB
Go
package xeth
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/*
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* eXtended ETHereum
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*/
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/ethutil"
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"github.com/ethereum/go-ethereum/event"
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"github.com/ethereum/go-ethereum/logger"
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"github.com/ethereum/go-ethereum/miner"
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"github.com/ethereum/go-ethereum/p2p"
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"github.com/ethereum/go-ethereum/state"
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"github.com/ethereum/go-ethereum/whisper"
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)
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var pipelogger = logger.NewLogger("XETH")
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// to resolve the import cycle
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type Backend interface {
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BlockProcessor() *core.BlockProcessor
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ChainManager() *core.ChainManager
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TxPool() *core.TxPool
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PeerCount() int
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IsListening() bool
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Peers() []*p2p.Peer
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KeyManager() *crypto.KeyManager
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Db() ethutil.Database
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EventMux() *event.TypeMux
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Whisper() *whisper.Whisper
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Miner() *miner.Miner
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ClientVersion() string
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}
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type XEth struct {
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eth Backend
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blockProcessor *core.BlockProcessor
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chainManager *core.ChainManager
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state *State
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whisper *Whisper
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miner *miner.Miner
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}
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func New(eth Backend) *XEth {
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xeth := &XEth{
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eth: eth,
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blockProcessor: eth.BlockProcessor(),
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chainManager: eth.ChainManager(),
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whisper: NewWhisper(eth.Whisper()),
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miner: eth.Miner(),
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}
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xeth.state = NewState(xeth, xeth.chainManager.TransState())
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return xeth
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}
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func (self *XEth) Backend() Backend { return self.eth }
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func (self *XEth) UseState(statedb *state.StateDB) *XEth {
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xeth := &XEth{
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eth: self.eth,
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blockProcessor: self.blockProcessor,
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chainManager: self.chainManager,
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whisper: self.whisper,
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miner: self.miner,
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}
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xeth.state = NewState(xeth, statedb)
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return xeth
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}
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func (self *XEth) State() *State { return self.state }
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func (self *XEth) Whisper() *Whisper { return self.whisper }
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func (self *XEth) Miner() *miner.Miner { return self.miner }
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func (self *XEth) BlockByHash(strHash string) *Block {
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hash := fromHex(strHash)
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block := self.chainManager.GetBlock(hash)
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return NewBlock(block)
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}
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func (self *XEth) BlockByNumber(num int32) *Block {
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if num == -1 {
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return NewBlock(self.chainManager.CurrentBlock())
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}
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return NewBlock(self.chainManager.GetBlockByNumber(uint64(num)))
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}
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func (self *XEth) Block(v interface{}) *Block {
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if n, ok := v.(int32); ok {
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return self.BlockByNumber(n)
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} else if str, ok := v.(string); ok {
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return self.BlockByHash(str)
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} else if f, ok := v.(float64); ok { // Don't ask ...
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return self.BlockByNumber(int32(f))
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}
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return nil
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}
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func (self *XEth) Accounts() []string {
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return []string{toHex(self.eth.KeyManager().Address())}
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}
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func (self *XEth) PeerCount() int {
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return self.eth.PeerCount()
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}
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func (self *XEth) IsMining() bool {
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return self.miner.Mining()
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}
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func (self *XEth) SetMining(shouldmine bool) bool {
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ismining := self.miner.Mining()
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if shouldmine && !ismining {
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self.miner.Start()
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}
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if ismining && !shouldmine {
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self.miner.Stop()
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}
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return self.miner.Mining()
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}
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func (self *XEth) IsListening() bool {
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return self.eth.IsListening()
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}
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func (self *XEth) Coinbase() string {
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return toHex(self.eth.KeyManager().Address())
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}
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func (self *XEth) NumberToHuman(balance string) string {
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b := ethutil.Big(balance)
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return ethutil.CurrencyToString(b)
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}
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func (self *XEth) StorageAt(addr, storageAddr string) string {
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storage := self.State().SafeGet(addr).StorageString(storageAddr)
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return toHex(storage.Bytes())
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}
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func (self *XEth) BalanceAt(addr string) string {
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return self.State().SafeGet(addr).Balance().String()
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}
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func (self *XEth) TxCountAt(address string) int {
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return int(self.State().SafeGet(address).Nonce())
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}
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func (self *XEth) CodeAt(address string) string {
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return toHex(self.State().SafeGet(address).Code())
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}
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func (self *XEth) IsContract(address string) bool {
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return len(self.State().SafeGet(address).Code()) > 0
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}
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func (self *XEth) GetClientVersion() string {
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return self.eth.ClientVersion()
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}
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func (self *XEth) SecretToAddress(key string) string {
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pair, err := crypto.NewKeyPairFromSec(fromHex(key))
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if err != nil {
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return ""
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}
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return toHex(pair.Address())
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}
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func (self *XEth) Execute(addr, value, gas, price, data string) (string, error) {
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return "", nil
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}
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type KeyVal struct {
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Key string `json:"key"`
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Value string `json:"value"`
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}
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func (self *XEth) EachStorage(addr string) string {
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var values []KeyVal
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object := self.State().SafeGet(addr)
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it := object.Trie().Iterator()
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for it.Next() {
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values = append(values, KeyVal{toHex(it.Key), toHex(it.Value)})
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}
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valuesJson, err := json.Marshal(values)
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if err != nil {
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return ""
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}
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return string(valuesJson)
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}
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func (self *XEth) ToAscii(str string) string {
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padded := ethutil.RightPadBytes([]byte(str), 32)
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return "0x" + toHex(padded)
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}
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func (self *XEth) FromAscii(str string) string {
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if ethutil.IsHex(str) {
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str = str[2:]
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}
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return string(bytes.Trim(fromHex(str), "\x00"))
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}
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func (self *XEth) FromNumber(str string) string {
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if ethutil.IsHex(str) {
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str = str[2:]
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}
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return ethutil.BigD(fromHex(str)).String()
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}
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func (self *XEth) PushTx(encodedTx string) (string, error) {
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tx := types.NewTransactionFromBytes(fromHex(encodedTx))
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err := self.eth.TxPool().Add(tx)
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if err != nil {
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return "", err
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}
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if tx.To() == nil {
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addr := core.AddressFromMessage(tx)
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return toHex(addr), nil
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}
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return toHex(tx.Hash()), nil
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}
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func (self *XEth) Call(toStr, valueStr, gasStr, gasPriceStr, dataStr string) (string, error) {
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if len(gasStr) == 0 {
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gasStr = "100000"
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}
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if len(gasPriceStr) == 0 {
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gasPriceStr = "1"
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}
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var (
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statedb = self.State().State() //self.chainManager.TransState()
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key = self.eth.KeyManager().KeyPair()
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from = statedb.GetOrNewStateObject(key.Address())
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block = self.chainManager.CurrentBlock()
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to = statedb.GetOrNewStateObject(fromHex(toStr))
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data = fromHex(dataStr)
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gas = ethutil.Big(gasStr)
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price = ethutil.Big(gasPriceStr)
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value = ethutil.Big(valueStr)
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)
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msg := types.NewTransactionMessage(fromHex(toStr), value, gas, price, data)
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msg.Sign(key.PrivateKey)
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vmenv := core.NewEnv(statedb, self.chainManager, msg, block)
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res, err := vmenv.Call(from, to.Address(), data, gas, price, value)
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if err != nil {
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return "", err
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}
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return toHex(res), nil
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}
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func (self *XEth) Transact(toStr, valueStr, gasStr, gasPriceStr, codeStr string) (string, error) {
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var (
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to []byte
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value = ethutil.NewValue(valueStr)
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gas = ethutil.NewValue(gasStr)
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price = ethutil.NewValue(gasPriceStr)
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data []byte
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key = self.eth.KeyManager().KeyPair()
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contractCreation bool
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)
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data = fromHex(codeStr)
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to = fromHex(toStr)
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if len(to) == 0 {
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contractCreation = true
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}
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var tx *types.Transaction
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if contractCreation {
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tx = types.NewContractCreationTx(value.BigInt(), gas.BigInt(), price.BigInt(), data)
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} else {
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tx = types.NewTransactionMessage(to, value.BigInt(), gas.BigInt(), price.BigInt(), data)
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}
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var err error
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state := self.eth.ChainManager().TxState()
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if balance := state.GetBalance(key.Address()); balance.Cmp(tx.Value()) < 0 {
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return "", fmt.Errorf("insufficient balance. balance=%v tx=%v", balance, tx.Value())
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}
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nonce := state.GetNonce(key.Address())
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tx.SetNonce(nonce)
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tx.Sign(key.PrivateKey)
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//fmt.Printf("create tx: %x %v\n", tx.Hash()[:4], tx.Nonce())
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// Do some pre processing for our "pre" events and hooks
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//block := self.chainManager.NewBlock(key.Address())
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//coinbase := state.GetOrNewStateObject(key.Address())
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//coinbase.SetGasPool(block.GasLimit())
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//self.blockProcessor.ApplyTransactions(coinbase, state, block, types.Transactions{tx}, true)
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err = self.eth.TxPool().Add(tx)
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if err != nil {
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return "", err
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}
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state.SetNonce(key.Address(), nonce+1)
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if types.IsContractAddr(to) {
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return toHex(core.AddressFromMessage(tx)), nil
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}
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return toHex(tx.Hash()), nil
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}
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