Python transactions.Transaction方法代码示例

# 需要导入模块: from ethereum import transactions [as 别名]
# 或者: from ethereum.transactions import Transaction [as 别名]
def get_raw_transaction(transaction: Transaction) -> str:
        '''
        Get raw_transaction by encoding Transaction object

        Args:
            transaction (`ethereum.transactions.Transaction`): Ethereum transaction object

        Returns:
            str: raw transaction hex string

        Example:
            >>> from clove.network import EthereumTestnet
            >>> network = EthereumTestnet()
            >>> transaction = network.deserialize_raw_transaction('0xf8f28201f4843b9aca008302251694ce07ab9477bc20790b88b398a2a9e0f626c7d26387b1a2bc2ec50000b8c47337c993000000000000000000000000000000000000000000000000000000005bd564819d3e84874c199ca4656d434060ec1a393750ab74000000000000000000000000000000000000000000000000d867f293ba129629a9f9355fa285b8d3711a9092000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000808080')  # noqa: E501
            >>> network.get_raw_transaction(transaction)
            '0xf8f28201f4843b9aca008302251694ce07ab9477bc20790b88b398a2a9e0f626c7d26387b1a2bc2ec50000b8c47337c993000000000000000000000000000000000000000000000000000000005bd564819d3e84874c199ca4656d434060ec1a393750ab74000000000000000000000000000000000000000000000000d867f293ba129629a9f9355fa285b8d3711a9092000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000808080'  # noqa: E501
        '''
        return Web3.toHex(rlp.encode(transaction)) 

# 需要导入模块: from ethereum import transactions [as 别名]
# 或者: from ethereum.transactions import Transaction [as 别名]
def publish(self, transaction: Union[str, Transaction]) -> Optional[str]:
        '''
        Method to publish transaction

        Args:
            transaction (str, `ethereum.transactions.Transaction`): signed transaction

        Returns:
            str, None: transaction hash or None if something goes wrong

        Example:
            >>> from clove.network import EthereumTestnet
            >>> network = EthereumTestnet()
            >>> signed_transaction = '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'  # noqa: E501
            >>> network.publish(signed_transaction)
            '0x4fd41289b816f6122e59a0759bd10441ead75d550562f4b3aad2fddc56eb3274'
        '''
        raw_transaction = transaction if isinstance(transaction, str) else self.get_raw_transaction(transaction)
        try:
            published_transaction = self.web3.eth.sendRawTransaction(raw_transaction).hex()
            logger.debug(f'Transaction {published_transaction} published successful')
            return published_transaction
        except ValueError:
            logger.warning(f'Unable to publish transaction {raw_transaction}')
            return 

# 需要导入模块: from ethereum import transactions [as 别名]
# 或者: from ethereum.transactions import Transaction [as 别名]
def _check_transaction(self, transaction, unsigned):
        """
        Checks a single (external) transaction against its expected unsigned (local) counterpart
        """
        decoded = rlp.decode(self.web3.toAscii(transaction['signedRaw']), Transaction)

        decoded_tx = dict(
            nonce=self.web3.toHex(decoded.nonce),
            gasPrice=self.web3.toHex(decoded.gasprice),
            gas=self.web3.toHex(decoded.startgas),
            to=self.web3.toHex(decoded.to),
            value=self.web3.toHex(decoded.value),
            data=self.web3.toHex(decoded.data)
        )

        unsigned['tx'].pop('from')

        if unsigned['tx'] != decoded_tx:
            logging.error("mismatch! signed tx: {}, local tx: {}".format(decoded_tx, unsigned['tx']))
            raise AirdropException("transaction mismatch for {}".format(unsigned['tx']['nonce'])) 

# 需要导入模块: from ethereum import transactions [as 别名]
# 或者: from ethereum.transactions import Transaction [as 别名]
def make_transaction( src_priv_key, dst_address, value, data ):
    src_address = b2h( utils.privtoaddr(src_priv_key) )
    nonce = get_num_transactions( src_address )
    gas_price = get_gas_price_in_wei()
    data_as_string = b2h(data)
    start_gas = eval_startgas( src_address, dst_address, value, data_as_string, gas_price )
    
    nonce = int( nonce, 16 )
    gas_price = int( gas_price, 16 )
    start_gas = int( start_gas, 16 ) + 100000
    
    tx = transactions.Transaction( nonce,
                                   gas_price,
                                   start_gas,
                                   dst_address,
                                   value,
                                   data ).sign(src_priv_key)
    
    
                                   
    tx_hex  = b2h(rlp.encode(tx))
    tx_hash = b2h( tx.hash )
    if use_ether_scan:
        params = [{"hex" : "0x" + tx_hex }]
    else:
        params = ["0x" + tx_hex]
    return_value = json_call( "eth_sendRawTransaction", params )                       
    if return_value == "0x0000000000000000000000000000000000000000000000000000000000000000":
        print "Transaction failed"
        return False
    wait_for_confirmation(tx_hash)
    return return_value 

# 需要导入模块: from ethereum import transactions [as 别名]
# 或者: from ethereum.transactions import Transaction [as 别名]
def tx_hash_decoder(data):
    """Decode a transaction hash."""
    decoded = data_decoder(data)
    if len(decoded) != 32:
        raise BadRequestError('Transaction hashes must be 32 bytes long')
    return decoded 

# 需要导入模块: from ethereum import transactions [as 别名]
# 或者: from ethereum.transactions import Transaction [as 别名]
def _get_trace(self, txhash):
        try:  # index
            test_blk, tx, i = self._get_block_before_tx(txhash)
        except (KeyError, TypeError):
            raise Exception('Unknown Transaction  %s' % txhash)

        # collect debug output FIXME set loglevel trace???
        recorder = LogRecorder()
        # apply tx (thread? we don't want logs from other invocations)
        self.app.services.chain.add_transaction_lock.acquire()
        processblock.apply_transaction(test_blk, tx)  # FIXME deactivate tx context switch or lock
        self.app.services.chain.add_transaction_lock.release()
        return dict(tx=txhash, trace=recorder.pop_records()) 

# 需要导入模块: from ethereum import transactions [as 别名]
# 或者: from ethereum.transactions import Transaction [as 别名]
def signed_tx_example():
    from ethereum.transactions import Transaction
    from pyethapp.accounts import mk_privkey, privtoaddr
    secret_seed = 'wow'
    privkey = mk_privkey(secret_seed)
    sender = privtoaddr(privkey)
    # fetch nonce
    nonce = quantity_decoder(
        JSONRPCClient().call('eth_getTransactionCount', address_encoder(sender), 'pending'))
    # create transaction
    tx = Transaction(nonce, default_gasprice, default_startgas, to=z_address, value=100, data='')
    tx.sign(privkey)
    tx_dict = tx.to_dict()
    tx_dict.pop('hash')
    res = JSONRPCClient().eth_sendTransaction(**tx_dict)
    if len(res) == 20:
        print 'contract created @', res.encode('hex')
    else:
        assert len(res) == 32
        print 'tx hash', res.encode('hex') 

# 需要导入模块: from ethereum import transactions [as 别名]
# 或者: from ethereum.transactions import Transaction [as 别名]
def broadcast_transaction(self, tx, origin=None):
        assert isinstance(tx, Transaction)
        if self.broadcast_filter.known(tx.hash):
            log.debug('already broadcasted tx')
        else:
            log.debug('broadcasting tx', origin=origin)
            bcast = self.app.services.peermanager.broadcast
            bcast(eth_protocol.ETHProtocol, 'transactions', args=(tx,),
                  exclude_peers=[origin.peer] if origin else [])

    # wire protocol receivers ########### 

# 需要导入模块: from ethereum import transactions [as 别名]
# 或者: from ethereum.transactions import Transaction [as 别名]
def set_contract(self):
        self.contract = self.network.web3.eth.contract(address=self.contract_address, abi=self.abi)

        initiate_func = self.contract.functions.initiate(
            self.locktime_unix,
            self.secret_hash,
            self.recipient_address,
            self.token_address,
            bool(self.token),
            self.token_value_base_units,
        )

        tx_dict = {
            'nonce': self.network.web3.eth.getTransactionCount(self.sender_address),
            'from': self.sender_address,
            'value': self.value_base_units,
        }

        tx_dict = initiate_func.buildTransaction(tx_dict)

        self.gas_limit = initiate_func.estimateGas({
            key: value for key, value in tx_dict.items() if key not in ('to', 'data')
        })

        self.tx = Transaction(
            nonce=tx_dict['nonce'],
            gasprice=tx_dict['gasPrice'],
            startgas=self.gas_limit,
            to=tx_dict['to'],
            value=tx_dict['value'],
            data=Web3.toBytes(hexstr=tx_dict['data']),
        ) 

# 需要导入模块: from ethereum import transactions [as 别名]
# 或者: from ethereum.transactions import Transaction [as 别名]
def sign(transaction: Transaction, private_key: str) -> Transaction:
        '''
        Signing the transaction.

        Args:
            transaction (Transaction): Ethereum unsigned transaction object
            private_key (str): private key

        Returns:
            Transaction: Ethereum signed transaction object
        '''
        transaction.sign(private_key)
        logger.info('Transaction signed')
        return transaction 

# 需要导入模块: from ethereum import transactions [as 别名]
# 或者: from ethereum.transactions import Transaction [as 别名]
def deserialize_raw_transaction(raw_transaction: str) -> Transaction:
        '''
        Deserializing raw transaction and returning Transaction object

        Args:
            raw_transaction (str): raw transaction hex string

        Returns:
            `ethereum.transactions.Transaction`: Ethereum transaction object

        Raises:
            ImpossibleDeserialization: if the raw transaction was not deserializable

        Example:
            >>> from clove.network import EthereumTestnet
            >>> network = EthereumTestnet()
            >>> transaction = network.deserialize_raw_transaction('0xf8f28201f4843b9aca008302251694ce07ab9477bc20790b88b398a2a9e0f626c7d26387b1a2bc2ec50000b8c47337c993000000000000000000000000000000000000000000000000000000005bd564819d3e84874c199ca4656d434060ec1a393750ab74000000000000000000000000000000000000000000000000d867f293ba129629a9f9355fa285b8d3711a9092000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000808080')  # noqa: E501
            <Transaction(821b)>
        '''
        try:
            transaction = rlp.hex_decode(raw_transaction, Transaction)
            logger.debug('Deserialization succeed')
        except (ValueError, RLPException):
            logger.warning(f'Deserialization with {raw_transaction} failed')
            raise ImpossibleDeserialization()

        transaction._cached_rlp = None
        transaction.make_mutable()

        return transaction 

# 需要导入模块: from ethereum import transactions [as 别名]
# 或者: from ethereum.transactions import Transaction [as 别名]
def redeem(self, secret: str) -> EthereumTokenTransaction:
        '''
        Creates transaction that can redeem a contract.

        Args:
            secret (str): transaction secret that should match the contract secret hash (after hashing)

        Returns:
            EthereumTokenTransaction: unsigned transaction object with redeem transaction

        Raises:
            ValueError: if contract balance is 0
        '''
        if self.balance == 0:
            raise ValueError("Balance of this contract is 0.")
        contract = self.contract
        redeem_func = contract.functions.redeem(secret)
        tx_dict = {
            'nonce': self.network.web3.eth.getTransactionCount(self.recipient_address),
            'value': 0,
            'gas': ETH_REDEEM_GAS_LIMIT,
        }

        tx_dict = redeem_func.buildTransaction(tx_dict)

        transaction = EthereumTokenTransaction(network=self.network)
        transaction.tx = Transaction(
            nonce=tx_dict['nonce'],
            gasprice=tx_dict['gasPrice'],
            startgas=tx_dict['gas'],
            to=tx_dict['to'],
            value=tx_dict['value'],
            data=Web3.toBytes(hexstr=tx_dict['data']),
        )
        transaction.value = self.value
        transaction.token = self.token
        transaction.recipient_address = self.recipient_address
        return transaction 

# 需要导入模块: from ethereum import transactions [as 别名]
# 或者: from ethereum.transactions import Transaction [as 别名]
def compute_state_test_unit(state, txdata, konfig):
    state.env.config = konfig
    s = state.snapshot()
    try:
        # Create the transaction
        tx = transactions.Transaction(
            nonce=parse_int_or_hex(txdata['nonce'] or b"0"),
            gasprice=parse_int_or_hex(txdata['gasPrice'] or b"0"),
            startgas=parse_int_or_hex(txdata['gasLimit'] or b"0"),
            to=decode_hex(remove_0x_head(txdata['to'])),
            value=parse_int_or_hex(txdata['value'] or b"0"),
            data=decode_hex(remove_0x_head(txdata['data'])))
        if 'secretKey' in txdata:
            tx.sign(decode_hex(remove_0x_head(txdata['secretKey'])))
        else:
            tx.v = parse_int_or_hex(txdata['v'])
        # Run it
        prev = state.to_dict()
        print("calling apply_transaction")
        success, output = apply_transaction(state, tx)
        print("Applied tx")
    except InvalidTransaction as e:
        print("Exception: %r" % e)
        success, output = False, b''
    state.commit()
    post = state.to_dict()
    output_decl = {
        "hash": '0x' + encode_hex(state.trie.root_hash),
        #"indexes": indices,
        #"diff": mk_state_diff(prev, post)
    }
    stateRoot = encode_hex(state.trie.root_hash)
    print("{{\"stateRoot\": \"{}\"}}".format(stateRoot))
    state.revert(s)
    return output_decl 

# 需要导入模块: from ethereum import transactions [as 别名]
# 或者: from ethereum.transactions import Transaction [as 别名]
def getIntrinsicGas(test_tx):
    tx = transactions.Transaction(
        nonce=parse_int_or_hex(test_tx['nonce'] or b"0"),
        gasprice=parse_int_or_hex(test_tx['gasPrice'] or b"0"),
        startgas=parse_int_or_hex(test_tx['gasLimit'] or b"0"),
        to=decode_hex(remove_0x_head(test_tx['to'])),
        value=parse_int_or_hex(test_tx['value'] or b"0"),
        data=decode_hex(remove_0x_head(test_tx['data'])))

    return tx.intrinsic_gas_used 

# 需要导入模块: from ethereum import transactions [as 别名]
# 或者: from ethereum.transactions import Transaction [as 别名]
def getTxSender(test_tx):
    tx = transactions.Transaction(
        nonce=parse_int_or_hex(test_tx['nonce'] or b"0"),
        gasprice=parse_int_or_hex(test_tx['gasPrice'] or b"0"),
        startgas=parse_int_or_hex(test_tx['gasLimit'] or b"0"),
        to=decode_hex(remove_0x_head(test_tx['to'])),
        value=parse_int_or_hex(test_tx['value'] or b"0"),
        data=decode_hex(remove_0x_head(test_tx['data'])))
    if 'secretKey' in test_tx:
        tx.sign(decode_hex(remove_0x_head(test_tx['secretKey'])))
    return encode_hex(tx.sender)