def new_transfer_multi_tx(self, transfer_list: list,
payer: Union[str, bytes,
Address], gas_price: int,
gas_limit: int) -> InvokeTransaction:
"""
This interface is used to generate a transaction which can
transfer amount of token from from-account to to-account multiple times.
"""
func = NeoInvokeFunction('transferMulti')
for index, item in enumerate(transfer_list):
if not isinstance(item[2], int):
raise SDKException(
ErrorCode.param_err(
'the data type of value should be int.'))
if item[2] < 0:
raise SDKException(
ErrorCode.param_err(
'the value should be equal or great than 0.'))
transfer_list[index] = [
Address.b58decode(item[0]),
Address.b58decode(item[1]), item[2]
]
for item in transfer_list:
func.add_params_value(item)
params = InvokeTransaction.generate_neo_vm_invoke_code(
self._contract_address, func)
tx = InvokeTransaction(payer, gas_price, gas_limit, params)
return tx
def new_total_supply_tx(self) -> InvokeTransaction:
"""
This interface is used to generate transaction which can get the total token supply.
"""
tx = InvokeTransaction()
tx.add_invoke_code(self._contract_address, InvokeFunction('totalSupply'))
return tx
def new_commit_tx(self, claim_id: str, issuer_address: Union[str, bytes, Address], owner_ont_id: str,
payer_address: Union[str, bytes, Address], gas_price: int, gas_limit: int) -> InvokeTransaction:
func = NeoInvokeFunction('Commit')
func.set_params_value(claim_id, Address.b58decode(issuer_address), owner_ont_id)
tx = InvokeTransaction(Address.b58decode(payer_address), gas_price, gas_limit)
tx.add_invoke_code(self.__hex_contract_address, func)
return tx
def new_revoke_tx(self, claim_id: str, issuer: Union[str, bytes, Address], payer: Union[str, bytes, Address],
gas_price: int, gas_limit: int):
func = NeoInvokeFunction('Revoke')
func.set_params_value(claim_id, Address.b58decode(issuer))
tx = InvokeTransaction(Address.b58decode(payer), gas_price, gas_limit)
tx.add_invoke_code(self.__hex_contract_address, func)
return tx
def new_allowance_tx(self, owner: Union[str, bytes, Address],
spender: Union[str, bytes, Address]) -> InvokeTransaction:
func = InvokeFunction('allowance')
func.set_params_value(Address.b58decode(owner), Address.b58decode(spender))
tx = InvokeTransaction()
tx.add_invoke_code(self._contract_address, func)
return tx
def new_init_tx(self, payer: Union[str, bytes, Address], gas_price: int, gas_limit: int) -> InvokeTransaction:
"""
This interface is used to call the TotalSupply method in ope4
that initialize smart contract parameter.
"""
tx = InvokeTransaction(payer, gas_price, gas_limit)
tx.add_invoke_code(self._contract_address, InvokeFunction('init'))
return tx
def make_invoke_transaction(contract_address: Union[str, bytes, bytearray, Address],
func: Union[AbiFunction, InvokeFunction],
payer: Union[str, bytes, Address] = b'',
gas_price: int = 0,
gas_limit: int = 0) -> InvokeTransaction:
tx = InvokeTransaction(payer, gas_price, gas_limit)
tx.add_invoke_code(contract_address, func)
return tx
def make_invoke_transaction(contract_address: Union[str, bytes, bytearray, Address],
func: WasmInvokeFunction,
payer: Union[str, bytes, Address] = b'',
gas_price: int = 0,
gas_limit: int = 0) -> InvokeTransaction:
payload = InvokeTransaction.generate_wasm_vm_invoke_code(contract_address, func)
tx = InvokeTransaction(payer, gas_price, gas_limit, payload, TxType.InvokeWasmVm)
return tx
def new_balance_of_tx(self, owner: Union[str, bytes, Address]) -> InvokeTransaction:
"""
This interface is used to generate transaction which can get the account balance of another account with owner address.
"""
func = InvokeFunction('balanceOf')
func.set_params_value(Address.b58decode(owner))
tx = InvokeTransaction()
tx.add_invoke_code(self._contract_address, func)
return tx
def __add_signature(self, tx: InvokeTransaction, signer_address_list: List[str], payer_address: str = ''):
if len(payer_address) == 34:
payer = self.get_acct_by_address(payer_address)
tx.sign_transaction(payer)
for signer_address in signer_address_list:
if signer_address == payer_address:
continue
signer = self.get_acct_by_address(signer_address)
tx.add_sign_transaction(signer)
return tx
def new_transfer_tx(self, from_address: Union[str, Address], to_address: Union[str, Address], amount: int,
payer: Union[str, Address], gas_price: int, gas_limit: int) -> InvokeTransaction:
"""
This interface is used to generate a transaction which can transfer amount of tokens to to_address.
"""
func = InvokeFunction('transfer')
func.set_params_value(Address.b58decode(from_address), Address.b58decode(to_address), amount)
params = InvokeTransaction.generate_invoke_code(self._contract_address, func)
tx = InvokeTransaction(payer, gas_price, gas_limit, params)
return tx
def new_transfer_from_tx(self, spender: Union[str, bytes, Address], owner: Union[str, bytes, Address],
to_address: Union[str, bytes, Address], value: int, payer: Union[str, bytes, Address],
gas_price: int, gas_limit: int) -> InvokeTransaction:
func = InvokeFunction('transferFrom')
if not isinstance(value, int):
raise SDKException(ErrorCode.param_err('the data type of value should be int.'))
func.set_params_value(Address.b58decode(spender), Address.b58decode(owner), Address.b58decode(to_address),
value)
tx = InvokeTransaction(payer, gas_price, gas_limit)
tx.add_invoke_code(self._contract_address, func)
return tx
def new_approve_tx(self, owner: Union[str, bytes, Address], spender: Union[str, bytes, Address], amount: int,
payer: Union[str, bytes, Address], gas_price: int, gas_limit: int) -> InvokeTransaction:
"""
This interface is used to generate a transaction which allows spender to
withdraw from owner account multiple times, up to the _value amount.
If this function is called again it overwrites the current allowance with amount value.
"""
if not isinstance(amount, int):
raise SDKException(ErrorCode.param_err('the data type of amount should be int.'))
if amount < 0:
raise SDKException(ErrorCode.param_err('the amount should be equal or great than 0.'))
func = InvokeFunction('approve')
func.set_params_value(Address.b58decode(owner), Address.b58decode(spender), amount)
params = InvokeTransaction.generate_invoke_code(self._contract_address, func)
tx = InvokeTransaction(payer, gas_price, gas_limit, params)
return tx
def new_balance_of_tx(self, owner: Union[str,
Address]) -> InvokeTransaction:
owner = Address.b58decode(owner)
invoke_code = build_native_invoke_code(self._invoke_address,
self._version, 'balanceOf',
owner)
return InvokeTransaction(payload=invoke_code)
def new_allowance_tx(self, from_address: Union[str, Address],
to_address: Union[str, Address]) -> InvokeTransaction:
args = dict(from_address=Address.b58decode(from_address),
to_address=Address.b58decode(to_address))
invoke_code = build_native_invoke_code(self._invoke_address,
self._version, 'allowance',
args)
return InvokeTransaction(payload=invoke_code)
def new_transfer_from_tx(self, spender: Union[str, Address],
from_address: Union[str, Address],
receiver: Union[str, Address], amount: int,
payer: Union[str, Address], gas_price: int,
gas_limit: int) -> InvokeTransaction:
"""
This interface is used to generate a Transaction object that allow one account to transfer
a amount of ONT or ONG Asset to another account, in the condition of the first account had been approved.
"""
args = dict(spender=Address.b58decode(spender),
from_address=Address.b58decode(from_address),
to_address=Address.b58decode(receiver),
amount=amount)
invoke_code = build_native_invoke_code(self._invoke_address,
self._version, 'transferFrom',
args)
return InvokeTransaction(Address.b58decode(payer), gas_price,
gas_limit, invoke_code)
def new_approve_tx(self, approver: Union[str,
Address], spender: Union[str,
Address],
amount: int, payer: Union[str, Address], gas_price: int,
gas_limit: int) -> Transaction:
"""
This interface is used to generate a Transaction object for approve.
"""
if amount <= 0:
raise SDKException(
ErrorCode.other_error(
'the amount should be greater than than zero.'))
args = dict(sender=Address.b58decode(approver),
receiver=Address.b58decode(spender),
amount=amount)
invoke_code = build_native_invoke_code(self._invoke_address,
self._version, 'approve', args)
return InvokeTransaction(Address.b58decode(payer), gas_price,
gas_limit, invoke_code)
def new_transfer_tx(self, from_address: Union[str, Address],
to_address: Union[str, Address], amount: int,
payer: Union[str, Address], gas_price: int,
gas_limit: int) -> Transaction:
"""
This interface is used to generate a Transaction object for transfer.
"""
if amount <= 0:
raise SDKException(
ErrorCode.other_error(
'the amount should be greater than than zero.'))
state = [{
'from': Address.b58decode(from_address),
'to': Address.b58decode(to_address),
'amount': amount
}]
invoke_code = build_native_invoke_code(self._invoke_address,
self._version, 'transfer',
state)
return InvokeTransaction(Address.b58decode(payer), gas_price,
gas_limit, invoke_code)
def new_withdraw_tx(self, claimer: Union[str, Address],
receiver: Union[str, Address], amount: int,
payer: Union[str, Address], gas_price: int,
gas_limit: int) -> InvokeTransaction:
"""
This interface is used to generate a Transaction object that
allow one account to withdraw an amount of ong and transfer them to receive address.
"""
if amount <= 0:
raise SDKException(
ErrorCode.other_error(
'the amount should be greater than than zero.'))
payer = Address.b58decode(payer)
ont_contract = b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01'
args = dict(claimer=Address.b58decode(claimer),
from_address=ont_contract,
to_address=Address.b58decode(receiver),
value=amount)
invoke_code = build_native_invoke_code(self._invoke_address,
self._version, 'transferFrom',
args)
return InvokeTransaction(payer, gas_price, gas_limit, invoke_code)
def _new_token_setting_tx(self, func_name: str) -> InvokeTransaction:
invoke_code = build_native_invoke_code(self._invoke_address,
self._version, func_name,
bytearray())
return InvokeTransaction(payload=invoke_code)
def __new_token_setting_tx(self, func_name: str) -> InvokeTransaction:
func = InvokeFunction(func_name)
tx = InvokeTransaction()
tx.add_invoke_code(self._contract_address, func)
return tx
def make_invoke_transaction(code_addr: bytearray, params: bytearray,
payer: bytes, gas_limit: int, gas_price: int):
params += bytearray([0x67])
params += code_addr
invoke_tx = InvokeTransaction()
invoke_tx.version = 0
invoke_tx.sigs = bytearray()
invoke_tx.attributes = bytearray()
unix_time_now = int(time())
invoke_tx.nonce = unix_time_now
invoke_tx.code = params
invoke_tx.gas_limit = gas_limit
invoke_tx.gas_price = gas_price
if isinstance(payer, bytes) and payer != b'':
invoke_tx.payer = payer
else:
invoke_tx.payer = Address(ZERO_ADDRESS).to_array()
return invoke_tx
def _generate_transaction(self, method: str, args: dict, payer: Union[str, bytes, Address], gas_price: int,
gas_limit: int) -> InvokeTransaction:
invoke_code = build_vm.build_native_invoke_code(self._contract_address, self._version, method, args)
return InvokeTransaction(payer, gas_price, gas_limit, invoke_code)
def new_get_status_tx(self, claim_id: str) -> InvokeTransaction:
func = NeoInvokeFunction('GetStatus')
func.set_params_value(claim_id)
tx = InvokeTransaction()
tx.add_invoke_code(self.__hex_contract_address, func)
return tx