path: root/xeth/hexface.go

package xeth

import (
    "bytes"
    "encoding/json"

    "github.com/ethereum/go-ethereum/core"
    "github.com/ethereum/go-ethereum/core/types"
    "github.com/ethereum/go-ethereum/crypto"
    "github.com/ethereum/go-ethereum/ethutil"
    "github.com/ethereum/go-ethereum/state"
)

// to resolve the import cycle
type Backend interface {
    BlockProcessor() *core.BlockProcessor
    ChainManager() *core.ChainManager
    Coinbase() []byte
    KeyManager() *crypto.KeyManager
    IsMining() bool
    IsListening() bool
    PeerCount() int
    Db() ethutil.Database
    TxPool() *core.TxPool
}

type JSXEth struct {
    eth            Backend
    blockProcessor *core.BlockProcessor
    chainManager   *core.ChainManager
    world          *State
}

func NewJSXEth(eth Backend) *JSXEth {
    xeth := &JSXEth{
        eth:            eth,
        blockProcessor: eth.BlockProcessor(),
        chainManager:   eth.ChainManager(),
    }
    xeth.world = NewState(xeth)

    return xeth
}

func (self *JSXEth) State() *State { return self.world }

func (self *JSXEth) BlockByHash(strHash string) *JSBlock {
    hash := fromHex(strHash)
    block := self.chainManager.GetBlock(hash)

    return NewJSBlock(block)
}

func (self *JSXEth) BlockByNumber(num int32) *JSBlock {
    if num == -1 {
        return NewJSBlock(self.chainManager.CurrentBlock())
    }

    return NewJSBlock(self.chainManager.GetBlockByNumber(uint64(num)))
}

func (self *JSXEth) 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 *JSXEth) Accounts() []string {
    return []string{toHex(self.eth.KeyManager().Address())}
}

/*
func (self *JSXEth) StateObject(addr string) *JSObject {
    object := &Object{self.State().safeGet(fromHex(addr))}

    return NewJSObject(object)
}
*/

func (self *JSXEth) PeerCount() int {
    return self.eth.PeerCount()
}

func (self *JSXEth) IsMining() bool {
    return self.eth.IsMining()
}

func (self *JSXEth) IsListening() bool {
    return self.eth.IsListening()
}

func (self *JSXEth) Coinbase() string {
    return toHex(self.eth.KeyManager().Address())
}

func (self *JSXEth) NumberToHuman(balance string) string {
    b := ethutil.Big(balance)

    return ethutil.CurrencyToString(b)
}

func (self *JSXEth) StorageAt(addr, storageAddr string) string {
    storage := self.State().SafeGet(addr).StorageString(storageAddr)

    return toHex(storage.Bytes())
}

func (self *JSXEth) BalanceAt(addr string) string {
    return self.State().SafeGet(addr).Balance().String()
}

func (self *JSXEth) TxCountAt(address string) int {
    return int(self.State().SafeGet(address).Nonce)
}

func (self *JSXEth) CodeAt(address string) string {
    return toHex(self.State().SafeGet(address).Code)
}

func (self *JSXEth) IsContract(address string) bool {
    return len(self.State().SafeGet(address).Code) > 0
}

func (self *JSXEth) SecretToAddress(key string) string {
    pair, err := crypto.NewKeyPairFromSec(fromHex(key))
    if err != nil {
        return ""
    }

    return toHex(pair.Address())
}

func (self *JSXEth) Execute(addr, value, gas, price, data string) (string, error) {
    return "", nil
}

type KeyVal struct {
    Key   string `json:"key"`
    Value string `json:"value"`
}

func (self *JSXEth) EachStorage(addr string) string {
    var values []KeyVal
    object := self.State().SafeGet(addr)
    it := object.Trie().Iterator()
    for it.Next() {
        values = append(values, KeyVal{toHex(it.Key), toHex(it.Value)})
    }

    valuesJson, err := json.Marshal(values)
    if err != nil {
        return ""
    }

    return string(valuesJson)
}

func (self *JSXEth) ToAscii(str string) string {
    padded := ethutil.RightPadBytes([]byte(str), 32)

    return "0x" + toHex(padded)
}

func (self *JSXEth) FromAscii(str string) string {
    if ethutil.IsHex(str) {
        str = str[2:]
    }

    return string(bytes.Trim(fromHex(str), "\x00"))
}

func (self *JSXEth) FromNumber(str string) string {
    if ethutil.IsHex(str) {
        str = str[2:]
    }

    return ethutil.BigD(fromHex(str)).String()
}

func (self *JSXEth) Transact(key, toStr, valueStr, gasStr, gasPriceStr, codeStr string) (string, error) {
    return "", nil
}

func ToJSMessages(messages state.Messages) *ethutil.List {
    var msgs []JSMessage
    for _, m := range messages {
        msgs = append(msgs, NewJSMessage(m))
    }

    return ethutil.NewList(msgs)
}

func (self *JSXEth) PushTx(encodedTx string) (string, error) {
    tx := types.NewTransactionFromBytes(fromHex(encodedTx))
    err := self.eth.TxPool().Add(tx)
    if err != nil {
        return "", err
    }

    if tx.To() == nil {
        addr := core.AddressFromMessage(tx)
        return toHex(addr), nil
    }
    return toHex(tx.Hash()), nil
}