cerc-io/plugeth
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Added utility wrapper for Ethereum Config contract

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Note, this utility function has to move elsewhere
This commit is contained in:
obscuren 2014-07-01 20:09:21 +02:00
parent 28ef7d228c
commit 7a2a63f32b
1 changed files with 44 additions and 7 deletions
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51
ethpub/pub.go
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@ -14,6 +14,31 @@ import (
var logger = ethlog.NewLogger("PUB")
// TODO this has to move elsewhere
var cnfCtr = ethutil.Hex2Bytes("661005d2720d855f1d9976f88bb10c1a3398c77f")
type helper struct {
sm *ethchain.StateManager
}
func EthereumConfig(stateManager *ethchain.StateManager) helper {
return helper{stateManager}
}
func (self helper) obj() *ethchain.StateObject {
return self.sm.CurrentState().GetStateObject(cnfCtr)
}
func (self helper) NameReg() *ethchain.StateObject {
if self.obj() != nil {
addr := self.obj().GetStorage(big.NewInt(0))
if len(addr.Bytes()) > 0 {
return self.sm.CurrentState().GetStateObject(addr.Bytes())
}
}
return nil
}
type PEthereum struct {
manager ethchain.EthManager
stateManager *ethchain.StateManager
@ -141,19 +166,31 @@ func (lib *PEthereum) Create(key, valueStr, gasStr, gasPriceStr, script string)
return lib.createTx(key, "", valueStr, gasStr, gasPriceStr, script)
}
var namereg = ethutil.Hex2Bytes("bb5f186604d057c1c5240ca2ae0f6430138ac010")
func GetAddressFromNameReg(stateManager *ethchain.StateManager, name string) []byte {
recp := new(big.Int).SetBytes([]byte(name))
object := stateManager.CurrentState().GetStateObject(namereg)
if object != nil {
reg := object.GetStorage(recp)
nameReg := EthereumConfig(stateManager).NameReg()
if nameReg != nil {
addr := ethutil.RightPadBytes([]byte(name), 32)
reg := nameReg.GetStorage(ethutil.BigD(addr))
return reg.Bytes()
}
return nil
/*
recp := new(big.Int).SetBytes([]byte(name))
object := stateManager.CurrentState().GetStateObject(namereg)
if object != nil {
reg := object.GetStorage(recp)
return reg.Bytes()
}
return nil
*/
}
func (lib *PEthereum) createTx(key, recipient, valueStr, gasStr, gasPriceStr, scriptStr string) (*PReceipt, error) {
var hash []byte
var contractCreation bool
@ -171,7 +208,7 @@ func (lib *PEthereum) createTx(key, recipient, valueStr, gasStr, gasPriceStr, sc
var keyPair *ethcrypto.KeyPair
var err error
if key[0:2] == "0x" {
if ethutil.IsHex(key) {
keyPair, err = ethcrypto.NewKeyPairFromSec([]byte(ethutil.Hex2Bytes(key[2:])))
} else {
keyPair, err = ethcrypto.NewKeyPairFromSec([]byte(ethutil.Hex2Bytes(key)))