Merge branch 'release/0.6.3'

8 files changed, 916 insertions, 0 deletions

diff --git a/ethpipe/config.go b/ethpipe/config.go
new file mode 100644
index 000000000..6c24df640
--- /dev/null
+++ b/ethpipe/config.go
@@ -0,0 +1,33 @@
+package ethpipe
+
+import "github.com/ethereum/eth-go/ethutil"
+
+var cnfCtr = ethutil.Hex2Bytes("661005d2720d855f1d9976f88bb10c1a3398c77f")
+
+type Config struct {
+	pipe *Pipe
+}
+
+func (self *Config) Get(name string) *Object {
+	configCtrl := self.pipe.World().safeGet(cnfCtr)
+	var addr []byte
+
+	switch name {
+	case "NameReg":
+		addr = []byte{0}
+	case "DnsReg":
+		objectAddr := configCtrl.GetStorage(ethutil.BigD([]byte{0}))
+		domainAddr := (&Object{self.pipe.World().safeGet(objectAddr.Bytes())}).StorageString("DnsReg").Bytes()
+		return &Object{self.pipe.World().safeGet(domainAddr)}
+	default:
+		addr = ethutil.RightPadBytes([]byte(name), 32)
+	}
+
+	objectAddr := configCtrl.GetStorage(ethutil.BigD(addr))
+
+	return &Object{self.pipe.World().safeGet(objectAddr.Bytes())}
+}
+
+func (self *Config) Exist() bool {
+	return self.pipe.World().Get(cnfCtr) != nil
+}
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
+}
diff --git a/ethpipe/js_types.go b/ethpipe/js_types.go
new file mode 100644
index 000000000..0fb3a3876
--- /dev/null
+++ b/ethpipe/js_types.go
@@ -0,0 +1,208 @@
+package ethpipe
+
+import (
+	"encoding/json"
+	"strconv"
+	"strings"
+
+	"github.com/ethereum/eth-go/ethchain"
+	"github.com/ethereum/eth-go/ethcrypto"
+	"github.com/ethereum/eth-go/ethstate"
+	"github.com/ethereum/eth-go/ethutil"
+)
+
+// Block interface exposed to QML
+type JSBlock struct {
+	ref          *ethchain.Block
+	Number       int    `json:"number"`
+	Hash         string `json:"hash"`
+	Transactions string `json:"transactions"`
+	Time         int64  `json:"time"`
+	Coinbase     string `json:"coinbase"`
+	Name         string `json:"name"`
+	GasLimit     string `json:"gasLimit"`
+	GasUsed      string `json:"gasUsed"`
+}
+
+// Creates a new QML Block from a chain block
+func NewJSBlock(block *ethchain.Block) *JSBlock {
+	if block == nil {
+		return nil
+	}
+
+	var ptxs []JSTransaction
+	for _, tx := range block.Transactions() {
+		ptxs = append(ptxs, *NewJSTx(tx))
+	}
+
+	txJson, err := json.Marshal(ptxs)
+	if err != nil {
+		return nil
+	}
+
+	return &JSBlock{ref: block, Number: int(block.Number.Uint64()), GasUsed: block.GasUsed.String(), GasLimit: block.GasLimit.String(), Hash: ethutil.Bytes2Hex(block.Hash()), Transactions: string(txJson), Time: block.Time, Coinbase: ethutil.Bytes2Hex(block.Coinbase)}
+}
+
+func (self *JSBlock) ToString() string {
+	if self.ref != nil {
+		return self.ref.String()
+	}
+
+	return ""
+}
+
+func (self *JSBlock) GetTransaction(hash string) *JSTransaction {
+	tx := self.ref.GetTransaction(ethutil.Hex2Bytes(hash))
+	if tx == nil {
+		return nil
+	}
+
+	return NewJSTx(tx)
+}
+
+type JSTransaction struct {
+	ref *ethchain.Transaction
+
+	Value           string `json:"value"`
+	Gas             string `json:"gas"`
+	GasPrice        string `json:"gasPrice"`
+	Hash            string `json:"hash"`
+	Address         string `json:"address"`
+	Sender          string `json:"sender"`
+	RawData         string `json:"rawData"`
+	Data            string `json:"data"`
+	Contract        bool   `json:"isContract"`
+	CreatesContract bool   `json:"createsContract"`
+	Confirmations   int    `json:"confirmations"`
+}
+
+func NewJSTx(tx *ethchain.Transaction) *JSTransaction {
+	hash := ethutil.Bytes2Hex(tx.Hash())
+	receiver := ethutil.Bytes2Hex(tx.Recipient)
+	if receiver == "0000000000000000000000000000000000000000" {
+		receiver = ethutil.Bytes2Hex(tx.CreationAddress())
+	}
+	sender := ethutil.Bytes2Hex(tx.Sender())
+	createsContract := tx.CreatesContract()
+
+	var data string
+	if tx.CreatesContract() {
+		data = strings.Join(ethchain.Disassemble(tx.Data), "\n")
+	} else {
+		data = ethutil.Bytes2Hex(tx.Data)
+	}
+
+	return &JSTransaction{ref: tx, Hash: hash, Value: ethutil.CurrencyToString(tx.Value), Address: receiver, Contract: tx.CreatesContract(), Gas: tx.Gas.String(), GasPrice: tx.GasPrice.String(), Data: data, Sender: sender, CreatesContract: createsContract, RawData: ethutil.Bytes2Hex(tx.Data)}
+}
+
+func (self *JSTransaction) ToString() string {
+	return self.ref.String()
+}
+
+type JSKey struct {
+	Address    string `json:"address"`
+	PrivateKey string `json:"privateKey"`
+	PublicKey  string `json:"publicKey"`
+}
+
+func NewJSKey(key *ethcrypto.KeyPair) *JSKey {
+	return &JSKey{ethutil.Bytes2Hex(key.Address()), ethutil.Bytes2Hex(key.PrivateKey), ethutil.Bytes2Hex(key.PublicKey)}
+}
+
+type JSObject struct {
+	*Object
+}
+
+func NewJSObject(object *Object) *JSObject {
+	return &JSObject{object}
+}
+
+type PReceipt struct {
+	CreatedContract bool   `json:"createdContract"`
+	Address         string `json:"address"`
+	Hash            string `json:"hash"`
+	Sender          string `json:"sender"`
+}
+
+func NewPReciept(contractCreation bool, creationAddress, hash, address []byte) *PReceipt {
+	return &PReceipt{
+		contractCreation,
+		ethutil.Bytes2Hex(creationAddress),
+		ethutil.Bytes2Hex(hash),
+		ethutil.Bytes2Hex(address),
+	}
+}
+
+// Peer interface exposed to QML
+
+type JSPeer struct {
+	ref          *ethchain.Peer
+	Inbound      bool   `json:"isInbound"`
+	LastSend     int64  `json:"lastSend"`
+	LastPong     int64  `json:"lastPong"`
+	Ip           string `json:"ip"`
+	Port         int    `json:"port"`
+	Version      string `json:"version"`
+	LastResponse string `json:"lastResponse"`
+	Latency      string `json:"latency"`
+}
+
+func NewJSPeer(peer ethchain.Peer) *JSPeer {
+	if peer == nil {
+		return nil
+	}
+
+	var ip []string
+	for _, i := range peer.Host() {
+		ip = append(ip, strconv.Itoa(int(i)))
+	}
+	ipAddress := strings.Join(ip, ".")
+
+	return &JSPeer{ref: &peer, Inbound: peer.Inbound(), LastSend: peer.LastSend().Unix(), LastPong: peer.LastPong(), Version: peer.Version(), Ip: ipAddress, Port: int(peer.Port()), Latency: peer.PingTime()}
+}
+
+type JSReceipt struct {
+	CreatedContract bool   `json:"createdContract"`
+	Address         string `json:"address"`
+	Hash            string `json:"hash"`
+	Sender          string `json:"sender"`
+}
+
+func NewJSReciept(contractCreation bool, creationAddress, hash, address []byte) *JSReceipt {
+	return &JSReceipt{
+		contractCreation,
+		ethutil.Bytes2Hex(creationAddress),
+		ethutil.Bytes2Hex(hash),
+		ethutil.Bytes2Hex(address),
+	}
+}
+
+type JSMessage struct {
+	To        string `json:"to"`
+	From      string `json:"from"`
+	Input     string `json:"input"`
+	Output    string `json:"output"`
+	Path      int32  `json:"path"`
+	Origin    string `json:"origin"`
+	Timestamp int32  `json:"timestamp"`
+	Coinbase  string `json:"coinbase"`
+	Block     string `json:"block"`
+	Number    int32  `json:"number"`
+	Value     string `json:"value"`
+}
+
+func NewJSMessage(message *ethstate.Message) JSMessage {
+	return JSMessage{
+		To:        ethutil.Bytes2Hex(message.To),
+		From:      ethutil.Bytes2Hex(message.From),
+		Input:     ethutil.Bytes2Hex(message.Input),
+		Output:    ethutil.Bytes2Hex(message.Output),
+		Path:      int32(message.Path),
+		Origin:    ethutil.Bytes2Hex(message.Origin),
+		Timestamp: int32(message.Timestamp),
+		Coinbase:  ethutil.Bytes2Hex(message.Origin),
+		Block:     ethutil.Bytes2Hex(message.Block),
+		Number:    int32(message.Number.Int64()),
+		Value:     message.Value.String(),
+	}
+}
diff --git a/ethpipe/object.go b/ethpipe/object.go
new file mode 100644
index 000000000..f0032992c
--- /dev/null
+++ b/ethpipe/object.go
@@ -0,0 +1,26 @@
+package ethpipe
+
+import (
+	"github.com/ethereum/eth-go/ethstate"
+	"github.com/ethereum/eth-go/ethutil"
+)
+
+type Object struct {
+	*ethstate.StateObject
+}
+
+func (self *Object) StorageString(str string) *ethutil.Value {
+	if ethutil.IsHex(str) {
+		return self.Storage(ethutil.Hex2Bytes(str[2:]))
+	} else {
+		return self.Storage(ethutil.RightPadBytes([]byte(str), 32))
+	}
+}
+
+func (self *Object) StorageValue(addr *ethutil.Value) *ethutil.Value {
+	return self.Storage(addr.Bytes())
+}
+
+func (self *Object) Storage(addr []byte) *ethutil.Value {
+	return self.StateObject.GetStorage(ethutil.BigD(addr))
+}
diff --git a/ethpipe/pipe.go b/ethpipe/pipe.go
new file mode 100644
index 000000000..800a71139
--- /dev/null
+++ b/ethpipe/pipe.go
@@ -0,0 +1,159 @@
+package ethpipe
+
+import (
+	"strings"
+
+	"github.com/ethereum/eth-go/ethchain"
+	"github.com/ethereum/eth-go/ethcrypto"
+	"github.com/ethereum/eth-go/ethlog"
+	"github.com/ethereum/eth-go/ethstate"
+	"github.com/ethereum/eth-go/ethutil"
+	"github.com/ethereum/eth-go/ethvm"
+)
+
+var logger = ethlog.NewLogger("PIPE")
+
+type VmVars struct {
+	State *ethstate.State
+}
+
+type Pipe struct {
+	obj          ethchain.EthManager
+	stateManager *ethchain.StateManager
+	blockChain   *ethchain.BlockChain
+	world        *World
+
+	Vm VmVars
+}
+
+func New(obj ethchain.EthManager) *Pipe {
+	pipe := &Pipe{
+		obj:          obj,
+		stateManager: obj.StateManager(),
+		blockChain:   obj.BlockChain(),
+	}
+	pipe.world = NewWorld(pipe)
+
+	return pipe
+}
+
+func (self *Pipe) Balance(addr []byte) *ethutil.Value {
+	return ethutil.NewValue(self.World().safeGet(addr).Balance)
+}
+
+func (self *Pipe) Nonce(addr []byte) uint64 {
+	return self.World().safeGet(addr).Nonce
+}
+
+func (self *Pipe) Execute(addr []byte, data []byte, value, gas, price *ethutil.Value) ([]byte, error) {
+	return self.ExecuteObject(&Object{self.World().safeGet(addr)}, data, value, gas, price)
+}
+
+func (self *Pipe) ExecuteObject(object *Object, data []byte, value, gas, price *ethutil.Value) ([]byte, error) {
+	var (
+		initiator   = ethstate.NewStateObject([]byte{0})
+		block       = self.blockChain.CurrentBlock
+		stateObject = object.StateObject
+	)
+	if self.Vm.State == nil {
+		self.Vm.State = self.World().State().Copy()
+	}
+
+	vm := ethvm.New(NewEnv(self.Vm.State, block, value.BigInt(), initiator.Address()))
+
+	closure := ethvm.NewClosure(&ethstate.Message{}, initiator, stateObject, object.Code, gas.BigInt(), price.BigInt())
+	ret, _, err := closure.Call(vm, data)
+
+	return ret, err
+}
+
+func (self *Pipe) Block(hash []byte) *ethchain.Block {
+	return self.blockChain.GetBlock(hash)
+}
+
+func (self *Pipe) Storage(addr, storageAddr []byte) *ethutil.Value {
+	return self.World().safeGet(addr).GetStorage(ethutil.BigD(storageAddr))
+}
+
+func (self *Pipe) ToAddress(priv []byte) []byte {
+	pair, err := ethcrypto.NewKeyPairFromSec(priv)
+	if err != nil {
+		return nil
+	}
+
+	return pair.Address()
+}
+
+func (self *Pipe) Exists(addr []byte) bool {
+	return self.World().Get(addr) != nil
+}
+
+func (self *Pipe) TransactString(key *ethcrypto.KeyPair, rec string, value, gas, price *ethutil.Value, data []byte) ([]byte, error) {
+	// Check if an address is stored by this address
+	var hash []byte
+	addr := self.World().Config().Get("NameReg").StorageString(rec).Bytes()
+	if len(addr) > 0 {
+		hash = addr
+	} else if ethutil.IsHex(rec) {
+		hash = ethutil.Hex2Bytes(rec[2:])
+	} else {
+		hash = ethutil.Hex2Bytes(rec)
+	}
+
+	return self.Transact(key, hash, value, gas, price, data)
+}
+
+func (self *Pipe) Transact(key *ethcrypto.KeyPair, rec []byte, value, gas, price *ethutil.Value, data []byte) ([]byte, error) {
+	var hash []byte
+	var contractCreation bool
+	if rec == nil {
+		contractCreation = true
+	}
+
+	var tx *ethchain.Transaction
+	// Compile and assemble the given data
+	if contractCreation {
+		script, err := ethutil.Compile(string(data), false)
+		if err != nil {
+			return nil, err
+		}
+
+		tx = ethchain.NewContractCreationTx(value.BigInt(), gas.BigInt(), price.BigInt(), script)
+	} else {
+		data := ethutil.StringToByteFunc(string(data), func(s string) (ret []byte) {
+			slice := strings.Split(s, "\n")
+			for _, dataItem := range slice {
+				d := ethutil.FormatData(dataItem)
+				ret = append(ret, d...)
+			}
+			return
+		})
+
+		tx = ethchain.NewTransactionMessage(hash, value.BigInt(), gas.BigInt(), price.BigInt(), data)
+	}
+
+	acc := self.stateManager.TransState().GetOrNewStateObject(key.Address())
+	tx.Nonce = acc.Nonce
+	acc.Nonce += 1
+	self.stateManager.TransState().UpdateStateObject(acc)
+
+	tx.Sign(key.PrivateKey)
+	self.obj.TxPool().QueueTransaction(tx)
+
+	if contractCreation {
+		logger.Infof("Contract addr %x", tx.CreationAddress())
+
+		return tx.CreationAddress(), nil
+	}
+
+	return tx.Hash(), nil
+}
+
+func (self *Pipe) CompileMutan(code string) ([]byte, error) {
+	data, err := ethutil.Compile(code, false)
+	if err != nil {
+		return nil, err
+	}
+
+	return data, nil
+}
diff --git a/ethpipe/pipe_test.go b/ethpipe/pipe_test.go
new file mode 100644
index 000000000..071213050
--- /dev/null
+++ b/ethpipe/pipe_test.go
@@ -0,0 +1,58 @@
+package ethpipe
+
+import (
+	"testing"
+
+	"github.com/ethereum/eth-go/ethcrypto"
+	"github.com/ethereum/eth-go/ethstate"
+	"github.com/ethereum/eth-go/ethutil"
+)
+
+func Val(v interface{}) *ethutil.Value {
+	return ethutil.NewValue(v)
+}
+
+func TestNew(t *testing.T) {
+	pipe := New(nil)
+
+	var addr, privy, recp, data []byte
+	var object *ethstate.StateObject
+	var key *ethcrypto.KeyPair
+
+	world := pipe.World()
+	world.Get(addr)
+	world.Coinbase()
+	world.IsMining()
+	world.IsListening()
+	world.State()
+	peers := world.Peers()
+	peers.Len()
+
+	// Shortcut functions
+	pipe.Balance(addr)
+	pipe.Nonce(addr)
+	pipe.Block(addr)
+	pipe.Storage(addr, addr)
+	pipe.ToAddress(privy)
+	pipe.Exists(addr)
+	// Doesn't change state
+	pipe.Execute(addr, nil, Val(0), Val(1000000), Val(10))
+	// Doesn't change state
+	pipe.ExecuteObject(object, nil, Val(0), Val(1000000), Val(10))
+
+	conf := world.Config()
+	namereg := conf.Get("NameReg")
+	namereg.Storage(addr)
+
+	var err error
+	// Transact
+	err = pipe.Transact(key, recp, ethutil.NewValue(0), ethutil.NewValue(0), ethutil.NewValue(0), nil)
+	if err != nil {
+		t.Error(err)
+	}
+	// Create
+	err = pipe.Transact(key, nil, ethutil.NewValue(0), ethutil.NewValue(0), ethutil.NewValue(0), data)
+	if err != nil {
+		t.Error(err)
+	}
+}
diff --git a/ethpipe/vm_env.go b/ethpipe/vm_env.go
new file mode 100644
index 000000000..822a9e5c7
--- /dev/null
+++ b/ethpipe/vm_env.go
@@ -0,0 +1,34 @@
+package ethpipe
+
+import (
+	"math/big"
+
+	"github.com/ethereum/eth-go/ethchain"
+	"github.com/ethereum/eth-go/ethstate"
+)
+
+type VMEnv struct {
+	state  *ethstate.State
+	block  *ethchain.Block
+	value  *big.Int
+	sender []byte
+}
+
+func NewEnv(state *ethstate.State, block *ethchain.Block, value *big.Int, sender []byte) *VMEnv {
+	return &VMEnv{
+		state:  state,
+		block:  block,
+		value:  value,
+		sender: sender,
+	}
+}
+
+func (self *VMEnv) Origin() []byte         { return self.sender }
+func (self *VMEnv) BlockNumber() *big.Int  { return self.block.Number }
+func (self *VMEnv) PrevHash() []byte       { return self.block.PrevHash }
+func (self *VMEnv) Coinbase() []byte       { return self.block.Coinbase }
+func (self *VMEnv) Time() int64            { return self.block.Time }
+func (self *VMEnv) Difficulty() *big.Int   { return self.block.Difficulty }
+func (self *VMEnv) BlockHash() []byte      { return self.block.Hash() }
+func (self *VMEnv) Value() *big.Int        { return self.value }
+func (self *VMEnv) State() *ethstate.State { return self.state }
diff --git a/ethpipe/world.go b/ethpipe/world.go
new file mode 100644
index 000000000..4666362f9
--- /dev/null
+++ b/ethpipe/world.go
@@ -0,0 +1,64 @@
+package ethpipe
+
+import (
+	"container/list"
+
+	"github.com/ethereum/eth-go/ethstate"
+)
+
+type World struct {
+	pipe *Pipe
+	cfg  *Config
+}
+
+func NewWorld(pipe *Pipe) *World {
+	world := &World{pipe, nil}
+	world.cfg = &Config{pipe}
+
+	return world
+}
+
+func (self *Pipe) World() *World {
+	return self.world
+}
+
+func (self *World) State() *ethstate.State {
+	return self.pipe.stateManager.CurrentState()
+}
+
+func (self *World) Get(addr []byte) *Object {
+	return &Object{self.State().GetStateObject(addr)}
+}
+
+func (self *World) SafeGet(addr []byte) *Object {
+	return &Object{self.safeGet(addr)}
+}
+
+func (self *World) safeGet(addr []byte) *ethstate.StateObject {
+	object := self.State().GetStateObject(addr)
+	if object == nil {
+		object = ethstate.NewStateObject(addr)
+	}
+
+	return object
+}
+
+func (self *World) Coinbase() *ethstate.StateObject {
+	return nil
+}
+
+func (self *World) IsMining() bool {
+	return self.pipe.obj.IsMining()
+}
+
+func (self *World) IsListening() bool {
+	return self.pipe.obj.IsListening()
+}
+
+func (self *World) Peers() *list.List {
+	return self.pipe.obj.Peers()
+}
+
+func (self *World) Config() *Config {
+	return self.cfg
+}