Esempio n. 1
0
// StorageAt returns the data stores in the state for the given address and location.
func (be *registryAPIBackend) StorageAt(addr string, storageAddr string) string {
	block := be.bc.CurrentBlock()
	state, err := state.New(block.Root(), be.chainDb)
	if err != nil {
		return ""
	}
	return state.GetState(common.HexToAddress(addr), common.HexToHash(storageAddr)).Hex()
}
Esempio n. 2
0
// GetStorageAt returns the storage from the state at the given address, key and block number.
func (s *PublicBlockChainAPI) GetStorageAt(address common.Address, key string, blockNr rpc.BlockNumber) (string, error) {
	if block := blockByNumber(s.miner, s.bc, blockNr); block != nil {
		state, err := state.New(block.Root(), s.chainDb)
		if err != nil {
			return "", err
		}

		return state.GetState(address, common.HexToHash(key)).Hex(), nil
	}

	return "0x", nil
}
Esempio n. 3
0
// Register registers a new content hash in the registry.
func (api *PrivateRegistarAPI) Register(sender common.Address, addr common.Address, contentHashHex string) (bool, error) {
	block := api.be.bc.CurrentBlock()
	state, err := state.New(block.Root(), api.be.chainDb)
	if err != nil {
		return false, err
	}

	codeb := state.GetCode(addr)
	codeHash := common.BytesToHash(crypto.Sha3(codeb))
	contentHash := common.HexToHash(contentHashHex)

	_, err = registrar.New(api.be).SetHashToHash(sender, codeHash, contentHash)
	return err == nil, err
}
Esempio n. 4
0
func (h *Header) UnmarshalJSON(data []byte) error {
	var ext struct {
		ParentHash string
		Coinbase   string
		Difficulty string
		GasLimit   string
		Time       *big.Int
		Extra      string
	}
	dec := json.NewDecoder(bytes.NewReader(data))
	if err := dec.Decode(&ext); err != nil {
		return err
	}

	h.ParentHash = common.HexToHash(ext.ParentHash)
	h.Coinbase = common.HexToAddress(ext.Coinbase)
	h.Difficulty = common.String2Big(ext.Difficulty)
	h.Time = ext.Time
	h.Extra = []byte(ext.Extra)
	return nil
}
Esempio n. 5
0
	"github.com/gophergala2016/etherapis/etherapis/Godeps/_workspace/src/github.com/ethereum/go-ethereum/common"
	"github.com/gophergala2016/etherapis/etherapis/Godeps/_workspace/src/github.com/ethereum/go-ethereum/crypto"
	"github.com/gophergala2016/etherapis/etherapis/Godeps/_workspace/src/github.com/ethereum/go-ethereum/crypto/sha3"
	"github.com/gophergala2016/etherapis/etherapis/Godeps/_workspace/src/github.com/ethereum/go-ethereum/logger"
	"github.com/gophergala2016/etherapis/etherapis/Godeps/_workspace/src/github.com/ethereum/go-ethereum/logger/glog"
	"github.com/gophergala2016/etherapis/etherapis/Godeps/_workspace/src/github.com/ethereum/go-ethereum/rlp"
)

const defaultCacheCapacity = 800

var (
	// The global cache stores decoded trie nodes by hash as they get loaded.
	globalCache = newARC(defaultCacheCapacity)

	// This is the known root hash of an empty trie.
	emptyRoot = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")

	// This is the known hash of an empty state trie entry.
	emptyState = crypto.Sha3Hash(nil)
)

// ClearGlobalCache clears the global trie cache
func ClearGlobalCache() {
	globalCache.Clear()
}

// Database must be implemented by backing stores for the trie.
type Database interface {
	DatabaseWriter
	// Get returns the value for key from the database.
	Get(key []byte) (value []byte, err error)
Esempio n. 6
0
func (c *testCharger) Charge(from, to common.Address, amount *big.Int, signature []byte) (common.Hash, error) {
	return common.HexToHash("0x7426125287fe1dfa9acc6d79008f0dc9a7e0c292b3387040e37c2a71518d711a"), nil
}
Esempio n. 7
0
// WriteGenesisBlock writes the genesis block to the database as block number 0
func WriteGenesisBlock(chainDb ethdb.Database, reader io.Reader) (*types.Block, error) {
	contents, err := ioutil.ReadAll(reader)
	if err != nil {
		return nil, err
	}

	var genesis struct {
		Nonce      string
		Timestamp  string
		ParentHash string
		ExtraData  string
		GasLimit   string
		Difficulty string
		Mixhash    string
		Coinbase   string
		Alloc      map[string]struct {
			Code    string
			Storage map[string]string
			Balance string
		}
	}

	if err := json.Unmarshal(contents, &genesis); err != nil {
		return nil, err
	}

	// creating with empty hash always works
	statedb, _ := state.New(common.Hash{}, chainDb)
	for addr, account := range genesis.Alloc {
		address := common.HexToAddress(addr)
		statedb.AddBalance(address, common.String2Big(account.Balance))
		statedb.SetCode(address, common.Hex2Bytes(account.Code))
		for key, value := range account.Storage {
			statedb.SetState(address, common.HexToHash(key), common.HexToHash(value))
		}
	}
	root, stateBatch := statedb.CommitBatch()

	difficulty := common.String2Big(genesis.Difficulty)
	block := types.NewBlock(&types.Header{
		Nonce:      types.EncodeNonce(common.String2Big(genesis.Nonce).Uint64()),
		Time:       common.String2Big(genesis.Timestamp),
		ParentHash: common.HexToHash(genesis.ParentHash),
		Extra:      common.FromHex(genesis.ExtraData),
		GasLimit:   common.String2Big(genesis.GasLimit),
		Difficulty: difficulty,
		MixDigest:  common.HexToHash(genesis.Mixhash),
		Coinbase:   common.HexToAddress(genesis.Coinbase),
		Root:       root,
	}, nil, nil, nil)

	if block := GetBlock(chainDb, block.Hash()); block != nil {
		glog.V(logger.Info).Infoln("Genesis block already in chain. Writing canonical number")
		err := WriteCanonicalHash(chainDb, block.Hash(), block.NumberU64())
		if err != nil {
			return nil, err
		}
		return block, nil
	}

	if err := stateBatch.Write(); err != nil {
		return nil, fmt.Errorf("cannot write state: %v", err)
	}
	if err := WriteTd(chainDb, block.Hash(), difficulty); err != nil {
		return nil, err
	}
	if err := WriteBlock(chainDb, block); err != nil {
		return nil, err
	}
	if err := WriteBlockReceipts(chainDb, block.Hash(), nil); err != nil {
		return nil, err
	}
	if err := WriteCanonicalHash(chainDb, block.Hash(), block.NumberU64()); err != nil {
		return nil, err
	}
	if err := WriteHeadBlockHash(chainDb, block.Hash()); err != nil {
		return nil, err
	}
	return block, nil
}
Esempio n. 8
0
// RegisterUrl registers a new url in the registry.
func (api *PrivateRegistarAPI) RegisterUrl(sender common.Address, contentHashHex string, url string) (bool, error) {
	_, err := registrar.New(api.be).SetUrlToHash(sender, common.HexToHash(contentHashHex), url)
	return err == nil, err
}
Esempio n. 9
0
// Sign will sign the given data string with the given address. The account corresponding with the address needs to
// be unlocked.
func (s *PublicTransactionPoolAPI) Sign(address common.Address, data string) (string, error) {
	signature, error := s.am.Sign(accounts.Account{Address: address}, common.HexToHash(data).Bytes())
	return common.ToHex(signature), error
}