package ethpipe
import (
"bytes"
"encoding/json"
"fmt"
"sync/atomic"
"github.com/ethereum/eth-go/ethchain"
"github.com/ethereum/eth-go/ethcrypto"
"github.com/ethereum/eth-go/ethreact"
"github.com/ethereum/eth-go/ethstate"
"github.com/ethereum/eth-go/ethutil"
)
type JSPipe struct {
*Pipe
}
func NewJSPipe(eth ethchain.EthManager) *JSPipe {
return &JSPipe{New(eth)}
}
func (self *JSPipe) BlockByHash(strHash string) *JSBlock {
hash := ethutil.Hex2Bytes(strHash)
block := self.obj.BlockChain().GetBlock(hash)
return NewJSBlock(block)
}
func (self *JSPipe) BlockByNumber(num int32) *JSBlock {
if num == -1 {
return NewJSBlock(self.obj.BlockChain().CurrentBlock)
}
return NewJSBlock(self.obj.BlockChain().GetBlockByNumber(uint64(num)))
}
func (self *JSPipe) Block(v interface{}) *JSBlock {
if n, ok := v.(int32); ok {
return self.BlockByNumber(n)
} else if str, ok := v.(string); ok {
return self.BlockByHash(str)
} else if f, ok := v.(float64); ok { // Don't ask ...
return self.BlockByNumber(int32(f))
}
return nil
}
func (self *JSPipe) Key() *JSKey {
return NewJSKey(self.obj.KeyManager().KeyPair())
}
func (self *JSPipe) StateObject(addr string) *JSObject {
object := &Object{self.World().safeGet(ethutil.Hex2Bytes(addr))}
return NewJSObject(object)
}
func (self *JSPipe) PeerCount() int {
return self.obj.PeerCount()
}
func (self *JSPipe) Peers() []JSPeer {
var peers []JSPeer
for peer := self.obj.Peers().Front(); peer != nil; peer = peer.Next() {
p := peer.Value.(ethchain.Peer)
// we only want connected peers
if atomic.LoadInt32(p.Connected()) != 0 {
peers = append(peers, *NewJSPeer(p))
}
}
return peers
}
func (self *JSPipe) IsMining() bool {
return self.obj.IsMining()
}
func (self *JSPipe) IsListening() bool {
return self.obj.IsListening()
}
func (self *JSPipe) CoinBase() string {
return ethutil.Bytes2Hex(self.obj.KeyManager().Address())
}
func (self *JSPipe) BalanceAt(addr string) string {
return self.World().SafeGet(ethutil.Hex2Bytes(addr)).Balance.String()
}
func (self *JSPipe) NumberToHuman(balance string) string {
b := ethutil.Big(balance)
return ethutil.CurrencyToString(b)
}
func (self *JSPipe) StorageAt(addr, storageAddr string) string {
storage := self.World().SafeGet(ethutil.Hex2Bytes(addr)).Storage(ethutil.Hex2Bytes(storageAddr))
return ethutil.Bytes2Hex(storage.Bytes())
}
func (self *JSPipe) TxCountAt(address string) int {
return int(self.World().SafeGet(ethutil.Hex2Bytes(address)).Nonce)
}
func (self *JSPipe) IsContract(address string) bool {
return len(self.World().SafeGet(ethutil.Hex2Bytes(address)).Code) > 0
}
func (self *JSPipe) SecretToAddress(key string) string {
pair, err := ethcrypto.NewKeyPairFromSec(ethutil.Hex2Bytes(key))
if err != nil {
return ""
}
return ethutil.Bytes2Hex(pair.Address())
}
type KeyVal struct {
Key string `json:"key"`
Value string `json:"value"`
}
func (self *JSPipe) EachStorage(addr string) string {
var values []KeyVal
object := self.World().SafeGet(ethutil.Hex2Bytes(addr))
object.EachStorage(func(name string, value *ethutil.Value) {
value.Decode()
values = append(values, KeyVal{ethutil.Bytes2Hex([]byte(name)), ethutil.Bytes2Hex(value.Bytes())})
})
valuesJson, err := json.Marshal(values)
if err != nil {
return ""
}
return string(valuesJson)
}
func (self *JSPipe) ToAscii(str string) string {
padded := ethutil.RightPadBytes([]byte(str), 32)
return "0x" + ethutil.Bytes2Hex(padded)
}
func (self *JSPipe) FromAscii(str string) string {
if ethutil.IsHex(str) {
str = str[2:]
}
return string(bytes.Trim(ethutil.Hex2Bytes(str), "\x00"))
}
func (self *JSPipe) FromNumber(str string) string {
if ethutil.IsHex(str) {
str = str[2:]
}
return ethutil.BigD(ethutil.Hex2Bytes(str)).String()
}
func (self *JSPipe) Transact(key, toStr, valueStr, gasStr, gasPriceStr, codeStr string) (*JSReceipt, error) {
var hash []byte
var contractCreation bool
if len(toStr) == 0 {
contractCreation = true
} else {
// Check if an address is stored by this address
addr := self.World().Config().Get("NameReg").StorageString(toStr).Bytes()
if len(addr) > 0 {
hash = addr
} else {
hash = ethutil.Hex2Bytes(toStr)
}
}
var keyPair *ethcrypto.KeyPair
var err error
if ethutil.IsHex(key) {
keyPair, err = ethcrypto.NewKeyPairFromSec([]byte(ethutil.Hex2Bytes(key[2:])))
} else {
keyPair, err = ethcrypto.NewKeyPairFromSec([]byte(ethutil.Hex2Bytes(key)))
}
if err != nil {
return nil, err
}
var (
value = ethutil.Big(valueStr)
gas = ethutil.Big(gasStr)
gasPrice = ethutil.Big(gasPriceStr)
data []byte
tx *ethchain.Transaction
)
if ethutil.IsHex(codeStr) {
data = ethutil.Hex2Bytes(codeStr[2:])
} else {
data = ethutil.Hex2Bytes(codeStr)
}
if contractCreation {
tx = ethchain.NewContractCreationTx(value, gas, gasPrice, data)
} else {
tx = ethchain.NewTransactionMessage(hash, value, gas, gasPrice, data)
}
acc := self.obj.StateManager().TransState().GetOrNewStateObject(keyPair.Address())
tx.Nonce = acc.Nonce
acc.Nonce += 1
self.obj.StateManager().TransState().UpdateStateObject(acc)
tx.Sign(keyPair.PrivateKey)
self.obj.TxPool().QueueTransaction(tx)
if contractCreation {
logger.Infof("Contract addr %x", tx.CreationAddress())
}
return NewJSReciept(contractCreation, tx.CreationAddress(), tx.Hash(), keyPair.Address()), nil
}
func (self *JSPipe) CompileMutan(code string) string {
data, err := self.Pipe.CompileMutan(code)
if err != nil {
return err.Error()
}
return ethutil.Bytes2Hex(data)
}
func (self *JSPipe) Watch(object map[string]interface{}) *JSFilter {
return NewJSFilterFromMap(object, self.Pipe.obj)
/*} else if str, ok := object.(string); ok {
println("str")
return NewJSFilterFromString(str, self.Pipe.obj)
*/
}
func (self *JSPipe) Messages(object map[string]interface{}) string {
filter := self.Watch(object)
filter.Uninstall()
return filter.Messages()
}
type JSFilter struct {
eth ethchain.EthManager
*ethchain.Filter
quit chan bool
BlockCallback func(*ethchain.Block)
MessageCallback func(ethstate.Messages)
}
func NewJSFilterFromMap(object map[string]interface{}, eth ethchain.EthManager) *JSFilter {
filter := &JSFilter{eth, ethchain.NewFilterFromMap(object, eth), make(chan bool), nil, nil}
go filter.mainLoop()
return filter
}
func NewJSFilterFromString(str string, eth ethchain.EthManager) *JSFilter {
return nil
}
func (self *JSFilter) MessagesToJson(messages ethstate.Messages) string {
var msgs []JSMessage
for _, m := range messages {
msgs = append(msgs, NewJSMessage(m))
}
// Return an empty array instead of "null"
if len(msgs) == 0 {
return "[]"
}
b, err := json.Marshal(msgs)
if err != nil {
return "{\"error\":" + err.Error() + "}"
}
return string(b)
}
func (self *JSFilter) Messages() string {
return self.MessagesToJson(self.Find())
}
func (self *JSFilter) mainLoop() {
blockChan := make(chan ethreact.Event, 5)
messageChan := make(chan ethreact.Event, 5)
// Subscribe to events
reactor := self.eth.Reactor()
reactor.Subscribe("newBlock", blockChan)
reactor.Subscribe("messages", messageChan)
out:
for {
select {
case <-self.quit:
break out
case block := <-blockChan:
if block, ok := block.Resource.(*ethchain.Block); ok {
if self.BlockCallback != nil {
self.BlockCallback(block)
}
}
case msg := <-messageChan:
if messages, ok := msg.Resource.(ethstate.Messages); ok {
if self.MessageCallback != nil {
println("messages!")
msgs := self.FilterMessages(messages)
if len(msgs) > 0 {
self.MessageCallback(msgs)
}
}
}
}
}
}
func (self *JSFilter) Changed(object interface{}) {
fmt.Printf("%T\n", object)
}
func (self *JSFilter) Uninstall() {
self.quit <- true
}
