def single_sign_transaction(input_private_key: str, tx: Transaction):
data = tx.serialize_unsigned()
signature = keytool.ecdsa_sign(bytes.fromhex(input_private_key), data)
r = b""
r = serialize.write_var_bytes(r, signature)
tx.programs[0].parameter = r
tx.hash()
return tx
def create_active_transaction(node_private_key: str, node_public_key: str):
pub_key = bytes.fromhex(node_public_key)
pri_key = bytes.fromhex(node_private_key)
activate_producer = ProcessProducer(pub_key, pri_key)
tx = Transaction()
tx.version = Transaction.TX_VERSION_09
tx.tx_type = Transaction.ACTIVATE_PRODUCER
tx.payload = activate_producer
tx.attributes = []
tx.inputs = []
tx.outputs = []
tx.programs = list()
tx.lock_time = 0
return tx
def create_transaction(input_private_key: str, output_addresses: list,
amount: int, rpc_port: int):
account = Account(input_private_key)
# check output
if output_addresses is None or len(output_addresses) == 0:
Logger.error("Invalid output addresses")
return None
# create outputs
outputs, total_amount = create_normal_outputs(
output_addresses=output_addresses,
amount=amount,
fee=util.TX_FEE,
output_lock=0)
# create inputs
inputs, change_outputs = create_normal_inputs(account.address(),
total_amount, rpc_port)
if inputs is None or change_outputs is None:
Logger.error("Create normal inputs failed")
return None
outputs.extend(change_outputs)
# create program
programs = list()
redeem_script = bytes.fromhex(account.redeem_script())
program = Program(code=redeem_script, params=None)
programs.append(program)
# create attributes
attributes = list()
attribute = Attribute(usage=Attribute.NONCE,
data=bytes("attributes".encode()))
attributes.append(attribute)
tx = Transaction()
tx.version = Transaction.TX_VERSION_09
tx.tx_type = Transaction.TRANSFER_ASSET
tx.payload = Payload(Payload.DEFAULT_VERSION)
tx.attributes = attributes
tx.inputs = inputs
tx.outputs = outputs
tx.lock_time = 0
tx.programs = programs
return tx
def create_cross_chain_asset(input_private_key: str, lock_address: str,
cross_chain_address: str, amount: int,
recharge: bool, rpc_port: int):
if lock_address is None or lock_address is "":
Logger.error("Invalid lock address")
return None
if cross_chain_address is None or cross_chain_address is "":
Logger.error("Invalid cross chain address")
return None
account = Account(input_private_key)
# create outputs:
outputs, total_amount = create_normal_outputs(
output_addresses=[lock_address],
amount=amount,
fee=util.TX_FEE,
output_lock=0)
# create inputs:
inputs, change_outputs = create_normal_inputs(account.address(),
total_amount, rpc_port)
if inputs is None or change_outputs is None:
Logger.error("Create normal inputs failed")
return None
outputs.extend(change_outputs)
# create program
programs = list()
redeem_script = bytes.fromhex(account.redeem_script())
program = Program(code=redeem_script, params=None)
programs.append(program)
# create attributes
attributes = list()
attribute = Attribute(usage=Attribute.NONCE,
data=bytes("attributes".encode()))
attributes.append(attribute)
cross_chain_asset = TransferCrossChainAsset()
cross_chain_asset.cross_chain_addresses = [cross_chain_address]
cross_chain_asset.output_indexes = [0]
cross_chain_asset.cross_chain_amounts = [amount - util.TX_FEE]
tx = Transaction()
if recharge:
tx.version = Transaction.TX_VERSION_09
else:
tx.version = Transaction.TX_VERSION_DEFAULT
Logger.debug("transaction version {}".format(tx.version))
tx.tx_type = Transaction.TRANSFER_CROSS_CHAIN_ASSET
tx.payload = cross_chain_asset
tx.attributes = attributes
tx.inputs = inputs
tx.outputs = outputs
tx.lock_time = 0
tx.programs = programs
return tx
def create_redeem_transaction(payload: ProducerInfo, output_address: str,
amount: int, rpc_port: int):
# create outputs
outputs, total_amount = create_normal_outputs(
output_addresses=[output_address],
amount=amount,
fee=util.TX_FEE,
output_lock=0)
# create inputs
deposit_address = payload.get_deposit_address()
inputs, change_outputs = create_normal_inputs(deposit_address,
total_amount, rpc_port)
if inputs is None or change_outputs is None:
Logger.error("Create normal inputs failed")
return None
outputs.extend(change_outputs)
# create program
programs = list()
redeem_script = bytes.fromhex(payload.owner_account.redeem_script())
program = Program(code=redeem_script, params=None)
programs.append(program)
# create attributes
attributes = list()
attribute = Attribute(usage=Attribute.NONCE,
data=bytes("attributes".encode()))
attributes.append(attribute)
tx = Transaction()
tx.version = Transaction.TX_VERSION_09
tx.tx_type = Transaction.RETURN_DEPOSIT_CHAIN
tx.payload_version = 0
tx.payload = Payload(Payload.DEFAULT_VERSION)
tx.attributes = attributes
tx.inputs = inputs
tx.outputs = outputs
tx.lock_time = 0
tx.programs = programs
return tx
def create_cancel_transaction(input_private_key: str, payload: ProducerInfo,
rpc_port: int):
# create inputs
account = Account(input_private_key)
inputs, change_outputs = create_normal_inputs(account.address(),
util.TX_FEE, rpc_port)
if inputs is None or change_outputs is None:
Logger.error("Create normal inputs failed")
return None
# create outputs
outputs = list()
outputs.extend(change_outputs)
# create program
programs = list()
redeem_script = bytes.fromhex(account.redeem_script())
program = Program(code=redeem_script, params=None)
programs.append(program)
# create attributes
attributes = list()
attribute = Attribute(usage=Attribute.NONCE,
data=bytes("attributes".encode()))
attributes.append(attribute)
payload = ProcessProducer(
bytes.fromhex(payload.owner_account.public_key()),
bytes.fromhex(payload.owner_account.private_key()))
tx = Transaction()
tx.version = Transaction.TX_VERSION_09
tx.tx_type = Transaction.CANCEL_PRODUCER
tx.payload_version = 0
tx.payload = payload
tx.attributes = attributes
tx.inputs = inputs
tx.outputs = outputs
tx.lock_time = 0
tx.programs = programs
return tx
def create_register_transaction(input_private_key: str, amount: int,
payload: ProducerInfo, rpc_port: int):
# create outputs
outputs, total_amount = create_normal_outputs(
output_addresses=[payload.get_deposit_address()],
amount=amount,
fee=util.TX_FEE,
output_lock=0)
# create inputs
account = Account(input_private_key)
inputs, change_outputs = create_normal_inputs(account.address(),
total_amount, rpc_port)
if inputs is None or change_outputs is None:
Logger.error("Create normal inputs failed")
return None
outputs.extend(change_outputs)
# create program
programs = list()
redeem_script = bytes.fromhex(account.redeem_script())
program = Program(code=redeem_script, params=None)
programs.append(program)
# create attributes
attributes = list()
attribute = Attribute(usage=Attribute.NONCE,
data=bytes("attributes".encode()))
attributes.append(attribute)
tx = Transaction()
tx.version = Transaction.TX_VERSION_09
tx.tx_type = Transaction.REGISTER_PRODUCER
tx.payload_version = 0
tx.payload = payload
tx.attributes = attributes
tx.inputs = inputs
tx.outputs = outputs
tx.lock_time = 0
tx.programs = programs
return tx