1 files changed, 334 insertions, 0 deletions
diff --git a/ethpipe/js_pipe.go b/ethpipe/js_pipe.go
new file mode 100644
index 000000000..b32e94a10
--- /dev/null
+++ b/ethpipe/js_pipe.go
@@ -0,0 +1,334 @@
+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 storage.BigInt().String()
+}
+
+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
+}