Golang common.HexToHash函數代碼示例

func (m *Miner) processShare(s *ProxyServer, t *BlockTemplate, diff string, params []string) bool {
	paramsOrig := params[:]

	hashNoNonce := params[1]
	nonce, err := strconv.ParseUint(strings.Replace(params[0], "0x", "", -1), 16, 64)
	if err != nil {
		log.Printf("Malformed nonce: %v", err)
		return false
	}
	mixDigest := params[2]

	minerDifficulty, err := strconv.ParseFloat(diff, 64)
	if err != nil {
		log.Println("Malformed difficulty: " + diff)
		minerDifficulty = 5
	}
	minerAdjustedDifficulty := int64(minerDifficulty * 1000000 * 100)

	share := Block{
		number:      t.Height,
		hashNoNonce: common.HexToHash(hashNoNonce),
		difficulty:  big.NewInt(minerAdjustedDifficulty),
		nonce:       nonce,
		mixDigest:   common.HexToHash(mixDigest),
	}

	block := Block{
		number:      t.Height,
		hashNoNonce: common.HexToHash(hashNoNonce),
		difficulty:  t.Difficulty,
		nonce:       nonce,
		mixDigest:   common.HexToHash(mixDigest),
	}

	if hasher.Verify(share) {
		m.heartbeat()
		m.storeShare(minerAdjustedDifficulty)
		atomic.AddUint64(&m.validShares, 1)
		log.Printf("Valid share from %[email protected]%s at difficulty %v", m.Id, m.IP, minerDifficulty)
	} else {
		atomic.AddUint64(&m.invalidShares, 1)
		log.Printf("Invalid share from %[email protected]%s", m.Id, m.IP)
		return false
	}

	if hasher.Verify(block) {
		_, err = s.rpc().SubmitBlock(paramsOrig)
		if err != nil {
			atomic.AddUint64(&m.invalidBlocks, 1)
			atomic.AddUint64(&s.invalidBlocks, 1)
			log.Printf("Upstream share submission failure on height: %v for %v: %v", t.Height, t.Header, err)
		} else {
			s.fetchBlockTemplate()
			atomic.AddUint64(&m.validBlocks, 1)
			atomic.AddUint64(&s.validBlocks, 1)
			log.Printf("Upstream share found by miner %[email protected]%v at height: %d", m.Id, m.IP, t.Height)
		}
	}
	return true
}

func TestInsert(t *testing.T) {
	trie := newEmpty()

	updateString(trie, "doe", "reindeer")
	updateString(trie, "dog", "puppy")
	updateString(trie, "dogglesworth", "cat")

	exp := common.HexToHash("8aad789dff2f538bca5d8ea56e8abe10f4c7ba3a5dea95fea4cd6e7c3a1168d3")
	root := trie.Hash()
	if root != exp {
		t.Errorf("exp %x got %x", exp, root)
	}

	trie = newEmpty()
	updateString(trie, "A", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")

	exp = common.HexToHash("d23786fb4a010da3ce639d66d5e904a11dbc02746d1ce25029e53290cabf28ab")
	root, err := trie.Commit()
	if err != nil {
		t.Fatalf("commit error: %v", err)
	}
	if root != exp {
		t.Errorf("exp %x got %x", exp, root)
	}
}

func makeBlock() *types.Block {
	parentHash := common.HexToHash("0x01")
	coinbase := common.HexToAddress("0x01")
	root := common.HexToHash("0x01")
	difficulty := common.Big1
	nonce := uint64(1)
	block := types.NewBlock(parentHash, coinbase, root, difficulty, nonce, nil)

	txto := common.HexToAddress("0x02")
	txamount := big.NewInt(1)
	txgasAmount := big.NewInt(1)
	txgasPrice := big.NewInt(1)
	txdata := []byte{1, 2, 3}

	tx := types.NewTransactionMessage(txto, txamount, txgasAmount, txgasPrice, txdata)
	txs := make([]*types.Transaction, 1)
	txs[0] = tx
	block.SetTransactions(txs)

	uncles := make([]*types.Header, 1)
	uncles[0] = makeHeader()
	block.SetUncles(uncles)

	return block
}

func TestTransactionSigHash(t *testing.T) {
	if emptyTx.SigHash() != common.HexToHash("c775b99e7ad12f50d819fcd602390467e28141316969f4b57f0626f74fe3b386") {
		t.Errorf("empty transaction hash mismatch, got %x", emptyTx.Hash())
	}
	if rightvrsTx.SigHash() != common.HexToHash("fe7a79529ed5f7c3375d06b26b186a8644e0e16c373d7a12be41c62d6042b77a") {
		t.Errorf("RightVRS transaction hash mismatch, got %x", rightvrsTx.Hash())
	}
}

func makeStateLog(num int) *state.Log {
	address := common.HexToAddress("0x0")
	data := []byte{1, 2, 3}
	number := uint64(num)
	topics := make([]common.Hash, 3)
	topics = append(topics, common.HexToHash("0x00"))
	topics = append(topics, common.HexToHash("0x10"))
	topics = append(topics, common.HexToHash("0x20"))
	log := state.NewLog(address, topics, data, number)
	return log
}

// InsertPreState populates the given database with the genesis
// accounts defined by the test.
func (t *BlockTest) InsertPreState(db ethdb.Database, am *accounts.Manager) (*state.StateDB, error) {
	statedb, err := state.New(common.Hash{}, db)
	if err != nil {
		return nil, err
	}
	for addrString, acct := range t.preAccounts {
		addr, err := hex.DecodeString(addrString)
		if err != nil {
			return nil, err
		}
		code, err := hex.DecodeString(strings.TrimPrefix(acct.Code, "0x"))
		if err != nil {
			return nil, err
		}
		balance, ok := new(big.Int).SetString(acct.Balance, 0)
		if !ok {
			return nil, err
		}
		nonce, err := strconv.ParseUint(prepInt(16, acct.Nonce), 16, 64)
		if err != nil {
			return nil, err
		}

		if acct.PrivateKey != "" {
			privkey, err := hex.DecodeString(strings.TrimPrefix(acct.PrivateKey, "0x"))
			err = crypto.ImportBlockTestKey(privkey)
			err = am.TimedUnlock(common.BytesToAddress(addr), "", 999999*time.Second)
			if err != nil {
				return nil, err
			}
		}

		obj := statedb.CreateAccount(common.HexToAddress(addrString))
		obj.SetCode(code)
		obj.SetBalance(balance)
		obj.SetNonce(nonce)
		for k, v := range acct.Storage {
			statedb.SetState(common.HexToAddress(addrString), common.HexToHash(k), common.HexToHash(v))
		}
	}

	root, err := statedb.Commit()
	if err != nil {
		return nil, fmt.Errorf("error writing state: %v", err)
	}
	if t.Genesis.Root() != root {
		return nil, fmt.Errorf("computed state root does not match genesis block: genesis=%x computed=%x", t.Genesis.Root().Bytes()[:4], root.Bytes()[:4])
	}
	return statedb, nil
}

func benchStateTest(ruleSet RuleSet, test VmTest, env map[string]string, b *testing.B) {
	b.StopTimer()
	db, _ := ethdb.NewMemDatabase()
	statedb, _ := state.New(common.Hash{}, db)
	for addr, account := range test.Pre {
		obj := StateObjectFromAccount(db, addr, account)
		statedb.SetStateObject(obj)
		for a, v := range account.Storage {
			obj.SetState(common.HexToHash(a), common.HexToHash(v))
		}
	}
	b.StartTimer()

	RunState(ruleSet, statedb, env, test.Exec)
}

// InsertPreState populates the given database with the genesis
// accounts defined by the test.
func (t *BlockTest) InsertPreState(ethereum *eth.Ethereum) (*state.StateDB, error) {
	db := ethereum.StateDb()
	statedb := state.New(common.Hash{}, db)
	for addrString, acct := range t.preAccounts {
		addr, err := hex.DecodeString(addrString)
		if err != nil {
			return nil, err
		}
		code, err := hex.DecodeString(strings.TrimPrefix(acct.Code, "0x"))
		if err != nil {
			return nil, err
		}
		balance, ok := new(big.Int).SetString(acct.Balance, 0)
		if !ok {
			return nil, err
		}
		nonce, err := strconv.ParseUint(prepInt(16, acct.Nonce), 16, 64)
		if err != nil {
			return nil, err
		}

		if acct.PrivateKey != "" {
			privkey, err := hex.DecodeString(strings.TrimPrefix(acct.PrivateKey, "0x"))
			err = crypto.ImportBlockTestKey(privkey)
			err = ethereum.AccountManager().TimedUnlock(common.BytesToAddress(addr), "", 999999*time.Second)
			if err != nil {
				return nil, err
			}
		}

		obj := statedb.CreateAccount(common.HexToAddress(addrString))
		obj.SetCode(code)
		obj.SetBalance(balance)
		obj.SetNonce(nonce)
		for k, v := range acct.Storage {
			statedb.SetState(common.HexToAddress(addrString), common.HexToHash(k), common.HexToHash(v))
		}
	}
	// sync objects to trie
	statedb.SyncObjects()
	// sync trie to disk
	statedb.Sync()

	if !bytes.Equal(t.Genesis.Root().Bytes(), statedb.Root().Bytes()) {
		return nil, fmt.Errorf("computed state root does not match genesis block %x %x", t.Genesis.Root().Bytes()[:4], statedb.Root().Bytes()[:4])
	}
	return statedb, nil
}

func (js *jsre) dumpBlock(call otto.FunctionCall) otto.Value {
	var block *types.Block
	if len(call.ArgumentList) > 0 {
		if call.Argument(0).IsNumber() {
			num, _ := call.Argument(0).ToInteger()
			block = js.ethereum.ChainManager().GetBlockByNumber(uint64(num))
		} else if call.Argument(0).IsString() {
			hash, _ := call.Argument(0).ToString()
			block = js.ethereum.ChainManager().GetBlock(common.HexToHash(hash))
		} else {
			fmt.Println("invalid argument for dump. Either hex string or number")
		}

	} else {
		block = js.ethereum.ChainManager().CurrentBlock()
	}
	if block == nil {
		fmt.Println("block not found")
		return otto.UndefinedValue()
	}

	statedb := state.New(block.Root(), js.ethereum.StateDb())
	dump := statedb.RawDump()
	return js.re.ToVal(dump)

}

func (self *Gui) DumpState(hash, path string) {
	var stateDump []byte

	if len(hash) == 0 {
		stateDump = self.eth.ChainManager().State().Dump()
	} else {
		var block *types.Block
		if hash[0] == '#' {
			i, _ := strconv.Atoi(hash[1:])
			block = self.eth.ChainManager().GetBlockByNumber(uint64(i))
		} else {
			block = self.eth.ChainManager().GetBlock(common.HexToHash(hash))
		}

		if block == nil {
			guilogger.Infof("block err: not found %s\n", hash)
			return
		}

		stateDump = state.New(block.Root(), self.eth.StateDb()).Dump()
	}

	file, err := os.OpenFile(path[7:], os.O_CREATE|os.O_RDWR, os.ModePerm)
	if err != nil {
		guilogger.Infoln("dump err: ", err)
		return
	}
	defer file.Close()

	guilogger.Infof("dumped state (%s) to %s\n", hash, path)

	file.Write(stateDump)
}

func TestDelete(t *testing.T) {
	trie := newEmpty()
	vals := []struct{ k, v string }{
		{"do", "verb"},
		{"ether", "wookiedoo"},
		{"horse", "stallion"},
		{"shaman", "horse"},
		{"doge", "coin"},
		{"ether", ""},
		{"dog", "puppy"},
		{"shaman", ""},
	}
	for _, val := range vals {
		if val.v != "" {
			updateString(trie, val.k, val.v)
		} else {
			deleteString(trie, val.k)
		}
	}

	hash := trie.Hash()
	exp := common.HexToHash("5991bb8c6514148a29db676a14ac506cd2cd5775ace63c30a4fe457715e9ac84")
	if hash != exp {
		t.Errorf("expected %x got %x", exp, hash)
	}
}

func TestSecureDelete(t *testing.T) {
	trie := newEmptySecure()
	vals := []struct{ k, v string }{
		{"do", "verb"},
		{"ether", "wookiedoo"},
		{"horse", "stallion"},
		{"shaman", "horse"},
		{"doge", "coin"},
		{"ether", ""},
		{"dog", "puppy"},
		{"shaman", ""},
	}
	for _, val := range vals {
		if val.v != "" {
			trie.Update([]byte(val.k), []byte(val.v))
		} else {
			trie.Delete([]byte(val.k))
		}
	}
	hash := trie.Hash()
	exp := common.HexToHash("29b235a58c3c25ab83010c327d5932bcf05324b7d6b1185e650798034783ca9d")
	if hash != exp {
		t.Errorf("expected %x got %x", exp, hash)
	}
}

func checkLogs(tlog []Log, logs state.Logs) error {

	if len(tlog) != len(logs) {
		return fmt.Errorf("log length mismatch. Expected %d, got %d", len(tlog), len(logs))
	} else {
		for i, log := range tlog {
			if common.HexToAddress(log.AddressF) != logs[i].Address {
				return fmt.Errorf("log address expected %v got %x", log.AddressF, logs[i].Address)
			}

			if !bytes.Equal(logs[i].Data, common.FromHex(log.DataF)) {
				return fmt.Errorf("log data expected %v got %x", log.DataF, logs[i].Data)
			}

			if len(log.TopicsF) != len(logs[i].Topics) {
				return fmt.Errorf("log topics length expected %d got %d", len(log.TopicsF), logs[i].Topics)
			} else {
				for j, topic := range log.TopicsF {
					if common.HexToHash(topic) != logs[i].Topics[j] {
						return fmt.Errorf("log topic[%d] expected %v got %x", j, topic, logs[i].Topics[j])
					}
				}
			}
			genBloom := common.LeftPadBytes(types.LogsBloom(state.Logs{logs[i]}).Bytes(), 256)

			if !bytes.Equal(genBloom, common.Hex2Bytes(log.BloomF)) {
				return fmt.Errorf("bloom mismatch")
			}
		}
	}
	return nil
}

func (self *XEth) EthTransactionByHash(hash string) (tx *types.Transaction, blhash common.Hash, blnum *big.Int, txi uint64) {
	data, _ := self.backend.ExtraDb().Get(common.FromHex(hash))
	if len(data) != 0 {
		tx = types.NewTransactionFromBytes(data)
	} else { // check pending transactions
		tx = self.backend.TxPool().GetTransaction(common.HexToHash(hash))
	}

	// meta
	var txExtra struct {
		BlockHash  common.Hash
		BlockIndex uint64
		Index      uint64
	}

	v, _ := self.backend.ExtraDb().Get(append(common.FromHex(hash), 0x0001))
	r := bytes.NewReader(v)
	err := rlp.Decode(r, &txExtra)
	if err == nil {
		blhash = txExtra.BlockHash
		blnum = big.NewInt(int64(txExtra.BlockIndex))
		txi = txExtra.Index
	} else {
		glog.V(logger.Error).Infoln(err)
	}

	return
}

func (self *ethApi) SubmitWork(req *shared.Request) (interface{}, error) {
	args := new(SubmitWorkArgs)
	if err := self.codec.Decode(req.Params, &args); err != nil {
		return nil, shared.NewDecodeParamError(err.Error())
	}
	return self.xeth.RemoteMining().SubmitWork(args.Nonce, common.HexToHash(args.Digest), common.HexToHash(args.Header)), nil
}