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NatSpec contracts in genesis block, end to end test (unfinished)

This commit is contained in:
zsfelfoldi 2015-04-03 17:37:59 +02:00 committed by zelig
parent ac0e5e8b6d
commit e2d333d209
9 changed files with 217 additions and 60 deletions
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17
common/bytes.go
View File

@ -147,6 +147,23 @@ func Hex2Bytes(str string) []byte {
return h
}
func Hex2BytesFixed(str string, flen int) []byte {
h, _ := hex.DecodeString(str)
if len(h) == flen {
return h
} else {
if len(h) > flen {
return h[len(h)-flen : len(h)]
} else {
hh := make([]byte, flen)
copy(hh[flen-len(h):flen], h[:])
return hh
}
}
}
func StringToByteFunc(str string, cb func(str string) []byte) (ret []byte) {
if len(str) > 1 && str[0:2] == "0x" && !strings.Contains(str, "\n") {
ret = Hex2Bytes(str[2:])

5
common/natspec/natspec.go
View File

@ -49,11 +49,10 @@ func New(xeth *xeth.XEth, tx string, http *docserver.DocServer) (self *NatSpec,
// parse out host/domain
// set up nameresolver with natspecreg + urlhint contract addresses
stateReg := NewStateReg(xeth)
res := resolver.New(
xeth,
stateReg.caNatSpec,
stateReg.caURL,
resolver.NameRegContractAddress,
resolver.URLHintContractAddress,
)
// resolve host via nameReg/UrlHint Resolver

143
common/natspec/natspec_e2e_test.go Normal file
View File

@ -0,0 +1,143 @@
package natspec
import (
"fmt"
"io/ioutil"
"math/big"
"os"
"testing"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/resolver"
"github.com/ethereum/go-ethereum/core"
//"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/eth"
xe "github.com/ethereum/go-ethereum/xeth"
)
type testFrontend struct {
t *testing.T
ethereum *eth.Ethereum
xeth *xe.XEth
}
func (f *testFrontend) UnlockAccount(acc []byte) bool {
f.t.Logf("Unlocking account %v\n", common.Bytes2Hex(acc))
f.ethereum.AccountManager().Unlock(acc, "password")
return true
}
func (testFrontend) ConfirmTransaction(message string) bool { return true }
var port = 30300
func testJEthRE(t *testing.T) (ethereum *eth.Ethereum, err error) {
os.RemoveAll("/tmp/eth/")
err = os.MkdirAll("/tmp/eth/keys/e273f01c99144c438695e10f24926dc1f9fbf62d/", os.ModePerm)
if err != nil {
t.Errorf("%v", err)
return
}
err = os.MkdirAll("/tmp/eth/data", os.ModePerm)
if err != nil {
t.Errorf("%v", err)
return
}
ks := crypto.NewKeyStorePlain("/tmp/eth/keys")
ioutil.WriteFile("/tmp/eth/keys/e273f01c99144c438695e10f24926dc1f9fbf62d/e273f01c99144c438695e10f24926dc1f9fbf62d",
[]byte(`{"Id":"RhRXD+fNRKS4jx+7ZfEsNA==","Address":"4nPwHJkUTEOGleEPJJJtwfn79i0=","PrivateKey":"h4ACVpe74uIvi5Cg/2tX/Yrm2xdr3J7QoMbMtNX2CNc="}`), os.ModePerm)
port++
ethereum, err = eth.New(&eth.Config{
DataDir: "/tmp/eth",
AccountManager: accounts.NewManager(ks),
Port: fmt.Sprintf("%d", port),
MaxPeers: 10,
Name: "test",
})
if err != nil {
t.Errorf("%v", err)
return
}
return
}
func (self *testFrontend) insertTx(addr, contract, fnsig string, args []string) {
hash := common.Bytes2Hex(crypto.Sha3([]byte(fnsig)))
data := "0x" + hash[0:8]
for _, arg := range args {
data = data + common.Bytes2Hex(common.Hex2BytesFixed(arg, 32))
}
self.t.Logf("Tx data: %v", data)
self.xeth.Transact(addr, contract, "100000000000", "100000", "100000", data)
cb := common.HexToAddress(addr)
stateDb := self.ethereum.ChainManager().State().Copy()
coinbase := stateDb.GetStateObject(cb)
coinbase.SetGasPool(big.NewInt(100000))
block := self.ethereum.ChainManager().NewBlock(cb)
txs := self.ethereum.TxPool().GetTransactions()
tx := txs[0]
_, gas, err := core.ApplyMessage(core.NewEnv(stateDb, self.ethereum.ChainManager(), tx, block), tx, coinbase)
self.t.Logf("ApplyMessage: gas %v err %v", gas, err)
self.ethereum.TxPool().RemoveSet(txs)
self.xeth = self.xeth.WithState(stateDb)
}
func TestNatspecE2E(t *testing.T) {
ethereum, err := testJEthRE(t)
if err != nil {
t.Errorf("error creating jsre, got %v", err)
return
}
err = ethereum.Start()
if err != nil {
t.Errorf("error starting ethereum: %v", err)
return
}
defer ethereum.Stop()
frontend := &testFrontend{t: t, ethereum: ethereum}
frontend.xeth = xe.New(ethereum, frontend)
addr := frontend.xeth.Coinbase()
if addr != "0x"+core.TestAccount {
t.Errorf("CoinBase %v does not match TestAccount 0x%v", addr, core.TestAccount)
}
t.Logf("CoinBase is %v", addr)
balance := frontend.xeth.BalanceAt(core.TestAccount)
if balance != core.TestBalance {
t.Errorf("Balance %v does not match TestBalance %v", balance, core.TestBalance)
}
t.Logf("Balance is %v", balance)
frontend.insertTx(addr, core.ContractAddrURLhint, "register(bytes32,bytes32)", []string{"1234", "5678"})
t.Logf("testcnt: %v", frontend.xeth.StorageAt(core.ContractAddrURLhint, "00"))
for i := 0; i < 10; i++ {
t.Logf("storage[%v] = %v", i, frontend.xeth.StorageAt("0x"+core.ContractAddrURLhint, fmt.Sprintf("%v", i)))
}
rsv := resolver.New(frontend.xeth, resolver.URLHintContractAddress, resolver.NameRegContractAddress)
url, err2 := rsv.ContentHashToUrl(common.BytesToHash(common.Hex2BytesFixed("1234", 32)))
t.Logf("URL: %v err: %v", url, err2)
/*
This test is unfinished; first we need to see the result of a
transaction in the contract storage (testcnt should be 1).
*/
}

44
common/natspec/statereg.go
View File

@ -1,44 +0,0 @@
package natspec
import (
"github.com/ethereum/go-ethereum/xeth"
)
type StateReg struct {
xeth *xeth.XEth
caURL, caNatSpec string //contract addresses
}
func NewStateReg(xeth *xeth.XEth) (self *StateReg) {
self = &StateReg{}
self.xeth = xeth
self.testCreateContracts()
return
}
const codeURLhint = "0x33600081905550609c8060136000396000f30060003560e060020a900480632f926732" +
"14601f578063f39ec1f714603157005b602b6004356024356044565b60006000f35b603a" +
"600435607f565b8060005260206000f35b600054600160a060020a031633600160a06002" +
"0a031614606257607b565b8060016000848152602001908152602001600020819055505b" +
"5050565b60006001600083815260200190815260200160002054905091905056"
const codeNatSpec = "0x33600081905550609c8060136000396000f30060003560e060020a900480632f926732" +
"14601f578063f39ec1f714603157005b602b6004356024356044565b60006000f35b603a" +
"600435607f565b8060005260206000f35b600054600160a060020a031633600160a06002" +
"0a031614606257607b565b8060016000848152602001908152602001600020819055505b" +
"5050565b60006001600083815260200190815260200160002054905091905056"
func (self *StateReg) testCreateContracts() {
var err error
self.caURL, err = self.xeth.Transact(self.xeth.Coinbase(), "", "100000", "", self.xeth.DefaultGas().String(), codeURLhint)
if err != nil {
panic(err)
}
self.caNatSpec, err = self.xeth.Transact(self.xeth.Coinbase(), "", "100000", "", self.xeth.DefaultGas().String(), codeNatSpec)
if err != nil {
panic(err)
}
}

11
common/resolver/resolver.go
View File

@ -5,6 +5,7 @@ import (
"fmt"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/crypto"
)
@ -17,8 +18,8 @@ The resolver is meant to be called by the roundtripper transport implementation
of a url scheme
*/
const (
urlHintContractAddress = "urlhint"
nameRegContractAddress = "nameReg"
URLHintContractAddress = core.ContractAddrURLhint
NameRegContractAddress = core.ContractAddrHashReg
)
type Resolver struct {
@ -37,7 +38,7 @@ func New(eth Backend, uhca, nrca string) *Resolver {
func (self *Resolver) NameToContentHash(name string) (chash common.Hash, err error) {
// look up in nameReg
key := storageAddress(0, common.Hex2Bytes(name))
key := storageAddress(1, common.Hex2BytesFixed(name, 32))
hash := self.backend.StorageAt(self.nameRegContractAddress, key)
copy(chash[:], common.Hex2Bytes(hash))
return
@ -45,8 +46,8 @@ func (self *Resolver) NameToContentHash(name string) (chash common.Hash, err err
func (self *Resolver) ContentHashToUrl(chash common.Hash) (uri string, err error) {
// look up in nameReg
key := storageAddress(0, chash[:])
uri = self.backend.StorageAt(self.urlHintContractAddress, key)
key := storageAddress(2, chash[:])
uri = string(common.Hex2Bytes(self.backend.StorageAt(self.urlHintContractAddress, key)))
l := len(uri)
for (l > 0) && (uri[l-1] == 0) {
l--

12
common/resolver/resolver_test.go
View File

@ -23,13 +23,13 @@ func NewTestBackend() *testBackend {
self := &testBackend{}
self.contracts = make(map[string](map[string]string))
self.contracts[nameRegContractAddress] = make(map[string]string)
self.contracts[NameRegContractAddress] = make(map[string]string)
key := storageAddress(0, common.Hex2Bytes(codehash))
self.contracts[nameRegContractAddress][key] = hash
self.contracts[NameRegContractAddress][key] = hash
self.contracts[urlHintContractAddress] = make(map[string]string)
self.contracts[URLHintContractAddress] = make(map[string]string)
key = storageAddress(0, common.Hex2Bytes(hash))
self.contracts[urlHintContractAddress][key] = url
self.contracts[URLHintContractAddress][key] = url
return self
}
@ -45,7 +45,7 @@ func (self *testBackend) StorageAt(ca, sa string) (res string) {
func TestNameToContentHash(t *testing.T) {
b := NewTestBackend()
res := New(b, urlHintContractAddress, nameRegContractAddress)
res := New(b, URLHintContractAddress, NameRegContractAddress)
got, err := res.NameToContentHash(codehash)
if err != nil {
t.Errorf("expected no error, got %v", err)
@ -58,7 +58,7 @@ func TestNameToContentHash(t *testing.T) {
func TestContentHashToUrl(t *testing.T) {
b := NewTestBackend()
res := New(b, urlHintContractAddress, nameRegContractAddress)
res := New(b, URLHintContractAddress, NameRegContractAddress)
chash := common.Hash{}
copy(chash[:], common.Hex2Bytes(hash))
got, err := res.ContentHashToUrl(chash)

33
core/contracts.go Normal file
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@ -0,0 +1,33 @@
package core
const ( // built-in contracts address and code
ContractAddrURLhint = "0000000000000000000000000000000000000008"
ContractCodeURLhint = "0x60bd80600c6000396000f30060003560e060020a900480632f92673214601557005b60216004356024356027565b60006000f35b6000805490816001019055506001600083815260200190815260200160002054600160a060020a0316600014806081575033600160a060020a03166001600084815260200190815260200160002054600160a060020a0316145b60885760b9565b3360016000848152602001908152602001600020819055508060026000848152602001908152602001600020819055505b505056"
//"0x60b180600c6000396000f30060003560e060020a900480632f92673214601557005b60216004356024356027565b60006000f35b6000600083815260200190815260200160002054600160a060020a0316600014806075575033600160a060020a03166000600084815260200190815260200160002054600160a060020a0316145b607c5760ad565b3360006000848152602001908152602001600020819055508060016000848152602001908152602001600020819055505b505056"
/*
contract URLhint {
function register(bytes32 _hash, bytes32 _url) {
testcnt++;
if (owner[_hash] == 0 || owner[_hash] == msg.sender) {
owner[_hash] = msg.sender;
url[_hash] = _url;
}
}
uint32 testcnt;
mapping (bytes32 => address) owner;
mapping (bytes32 => bytes32) url;
}
*/
ContractAddrHashReg = "0000000000000000000000000000000000000009"
ContractCodeHashReg = "0x3360008190555060628060136000396000f30060003560e060020a900480632f92673214601557005b60216004356024356027565b60006000f35b600054600160a060020a031633600160a060020a031614604557605e565b8060016000848152602001908152602001600020819055505b505056"
/*
import "owned";
contract HashReg is owned {
function register(bytes32 _code, bytes32 _abi) onlyowner {
abis[_code] = _abi;
}
mapping (bytes32 => bytes32) abis;
}
*/
)

8
core/genesis.go
View File

@ -56,7 +56,15 @@ func GenesisBlock(db common.Database) *types.Block {
return genesis
}
const (
TestAccount = "e273f01c99144c438695e10f24926dc1f9fbf62d"
TestBalance = "1000000000000000000"
)
var genesisData = []byte(`{
"` + TestAccount + `": {"balance": "` + TestBalance + `"},
"` + ContractAddrURLhint + `": {"balance": "` + TestBalance + `", "code": "` + ContractCodeURLhint + `" },
"` + ContractAddrHashReg + `": {"balance": "` + TestBalance + `", "code": "` + ContractCodeHashReg + `" },
"0000000000000000000000000000000000000001": {"balance": "1"},
"0000000000000000000000000000000000000002": {"balance": "1"},
"0000000000000000000000000000000000000003": {"balance": "1"},

4
xeth/xeth.go
View File

@ -148,10 +148,10 @@ func (self *XEth) AtStateNum(num int64) *XEth {
}
}
return self.withState(st)
return self.WithState(st)
}
func (self *XEth) withState(statedb *state.StateDB) *XEth {
func (self *XEth) WithState(statedb *state.StateDB) *XEth {
xeth := &XEth{
backend: self.backend,
}