path: root/xeth/types.go

// Copyright 2014 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.

package xeth

import (
    "bytes"
    "fmt"
    "math/big"
    "strings"

    "github.com/ethereum/go-ethereum/common"
    "github.com/ethereum/go-ethereum/core"
    "github.com/ethereum/go-ethereum/core/state"
    "github.com/ethereum/go-ethereum/core/types"
    "github.com/ethereum/go-ethereum/crypto"
    "github.com/ethereum/go-ethereum/p2p"
    "github.com/ethereum/go-ethereum/rlp"
)

type Object struct {
    *state.StateObject
}

func NewObject(state *state.StateObject) *Object {
    return &Object{state}
}

func (self *Object) StorageString(str string) []byte {
    if common.IsHex(str) {
        return self.storage(common.Hex2Bytes(str[2:]))
    } else {
        return self.storage(common.RightPadBytes([]byte(str), 32))
    }
}

func (self *Object) StorageValue(addr *common.Value) []byte {
    return self.storage(addr.Bytes())
}

func (self *Object) storage(addr []byte) []byte {
    return self.StateObject.GetState(common.BytesToHash(addr)).Bytes()
}

func (self *Object) Storage() (storage map[string]string) {
    storage = make(map[string]string)

    it := self.StateObject.Trie().Iterator()
    for it.Next() {
        var data []byte
        rlp.Decode(bytes.NewReader(it.Value), &data)
        storage[common.ToHex(self.Trie().GetKey(it.Key))] = common.ToHex(data)
    }

    return
}

// Block interface exposed to QML
type Block struct {
    //Transactions string `json:"transactions"`
    ref          *types.Block
    Size         string       `json:"size"`
    Number       int          `json:"number"`
    Hash         string       `json:"hash"`
    Transactions *common.List `json:"transactions"`
    Uncles       *common.List `json:"uncles"`
    Time         *big.Int     `json:"time"`
    Coinbase     string       `json:"coinbase"`
    Name         string       `json:"name"`
    GasLimit     string       `json:"gasLimit"`
    GasUsed      string       `json:"gasUsed"`
    PrevHash     string       `json:"prevHash"`
    Bloom        string       `json:"bloom"`
    Raw          string       `json:"raw"`
}

// Creates a new QML Block from a chain block
func NewBlock(block *types.Block) *Block {
    if block == nil {
        return &Block{}
    }

    ptxs := make([]*Transaction, len(block.Transactions()))
    /*
        for i, tx := range block.Transactions() {
            ptxs[i] = NewTx(tx)
        }
    */
    txlist := common.NewList(ptxs)

    puncles := make([]*Block, len(block.Uncles()))
    /*
        for i, uncle := range block.Uncles() {
            puncles[i] = NewBlock(types.NewBlockWithHeader(uncle))
        }
    */
    ulist := common.NewList(puncles)

    return &Block{
        ref: block, Size: block.Size().String(),
        Number: int(block.NumberU64()), GasUsed: block.GasUsed().String(),
        GasLimit: block.GasLimit().String(), Hash: block.Hash().Hex(),
        Transactions: txlist, Uncles: ulist,
        Time:     block.Time(),
        Coinbase: block.Coinbase().Hex(),
        PrevHash: block.ParentHash().Hex(),
        Bloom:    common.ToHex(block.Bloom().Bytes()),
        Raw:      block.String(),
    }
}

func (self *Block) ToString() string {
    if self.ref != nil {
        return self.ref.String()
    }

    return ""
}

func (self *Block) GetTransaction(hash string) *Transaction {
    tx := self.ref.Transaction(common.HexToHash(hash))
    if tx == nil {
        return nil
    }

    return NewTx(tx)
}

type Transaction struct {
    ref *types.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 NewTx(tx *types.Transaction) *Transaction {
    sender, err := tx.From()
    if err != nil {
        return nil
    }
    hash := tx.Hash().Hex()

    var receiver string
    if to := tx.To(); to != nil {
        receiver = to.Hex()
    } else {
        from, _ := tx.From()
        receiver = crypto.CreateAddress(from, tx.Nonce()).Hex()
    }
    createsContract := core.MessageCreatesContract(tx)

    var data string
    if createsContract {
        data = strings.Join(core.Disassemble(tx.Data()), "\n")
    } else {
        data = common.ToHex(tx.Data())
    }

    return &Transaction{ref: tx, Hash: hash, Value: common.CurrencyToString(tx.Value()), Address: receiver, Contract: createsContract, Gas: tx.Gas().String(), GasPrice: tx.GasPrice().String(), Data: data, Sender: sender.Hex(), CreatesContract: createsContract, RawData: common.ToHex(tx.Data())}
}

func (self *Transaction) ToString() string {
    return self.ref.String()
}

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,
        common.ToHex(creationAddress),
        common.ToHex(hash),
        common.ToHex(address),
    }
}

// Peer interface exposed to QML

type Peer struct {
    ref     *p2p.Peer
    Ip      string `json:"ip"`
    Version string `json:"version"`
    Caps    string `json:"caps"`
}

func NewPeer(peer *p2p.Peer) *Peer {
    var caps []string
    for _, cap := range peer.Caps() {
        caps = append(caps, fmt.Sprintf("%s/%d", cap.Name, cap.Version))
    }

    return &Peer{
        ref:     peer,
        Ip:      fmt.Sprintf("%v", peer.RemoteAddr()),
        Version: fmt.Sprintf("%v", peer.ID()),
        Caps:    fmt.Sprintf("%v", caps),
    }
}

type Receipt struct {
    CreatedContract bool   `json:"createdContract"`
    Address         string `json:"address"`
    Hash            string `json:"hash"`
    Sender          string `json:"sender"`
}

func NewReciept(contractCreation bool, creationAddress, hash, address []byte) *Receipt {
    return &Receipt{
        contractCreation,
        common.ToHex(creationAddress),
        common.ToHex(hash),
        common.ToHex(address),
    }
}