def _txdata_to_txobject(self, data: dict, descriptor: dict, metadata: dict = {}, compute_hash=True) -> TxObject:
# initialize the right data size
# this is PYTHON to POSTBODY
schema = descriptor.get("schema", [])
raw_data = [0] * (len(schema) + 1) # the +1 is for the tag
# set the tx tag first
raw_data[0] = _int(data.get("tag"))
# parse fields and encode them
for label, fn in schema.items():
if fn.field_type == _INT:
raw_data[fn.index] = _int(data.get(label, 0))
elif fn.field_type == _ID:
raw_data[fn.index] = _id(data.get(label))
elif fn.field_type == _ENC:
raw_data[fn.index] = decode(data.get(label))
elif fn.field_type == _OTTL_TYPE:
raw_data[fn.index] = _int(idf.ORACLE_TTL_TYPES.get(data.get(label)))
elif fn.field_type == _SG:
# signatures are always a list
raw_data[fn.index] = [decode(sg) for sg in data.get(label, [])]
elif fn.field_type == _VM_ABI:
# vm/abi are encoded in the same 32bit length block
raw_data[fn.index] = _int(data.get("vm_version")) + _int(data.get("abi_version"), 2)
elif fn.field_type == _BIN:
# this are binary string #TODO: may be byte array
raw_data[fn.index] = _binary(data.get(label))
elif fn.field_type == _PTR:
# this are name pointers
raw_data[fn.index] = [[_binary(p.get("key")), _id(p.get("id"))] for p in data.get(label, [])]
elif fn.field_type == _TX:
# this can be raw or tx object
tx = data.get(label).tx if hasattr(data.get(label), "tx") else data.get(label)
raw_data[fn.index] = decode(tx)
# encode the transaction in rlp
rlp_tx = rlp.encode(raw_data)
# encode the tx in base64
rlp_b64_tx = encode(idf.TRANSACTION, rlp_tx)
# copy the data before modifying
tx_data = copy.deepcopy(data)
# build the tx object
txo = TxObject(
data=namedtupled.map(tx_data, _nt_name="TxData"),
tx=rlp_b64_tx,
)
# compute the tx hash
if compute_hash:
txo.hash = hash_encode(idf.TRANSACTION_HASH, rlp_tx)
# copy the metadata if exists or initialize it if None
tx_meta = copy.deepcopy(metadata) if metadata is not None else {}
# compute the minimum fee
if descriptor.get("fee") is not None:
tx_meta["min_fee"] = self.compute_min_fee(data, descriptor, raw_data)
# only set the metadata if it is not empty
txo.set_metadata(tx_meta)
return txo
def oracle_fee(tx_raw, fee_idx, relative_ttl):
# estimate oracle fees
tx_copy = tx_raw # create a copy of the input
tx_copy[fee_idx] = _int(0, 8) # replace fee with a byte array of lenght 8
fee = (defaults.BASE_GAS + len(rlp.encode(tx_copy)) * defaults.GAS_PER_BYTE)
fee += math.ceil(32000 * relative_ttl / math.floor(60 * 24 * 365 / defaults.KEY_BLOCK_INTERVAL))
return fee * defaults.GAS_PRICE
def contract_fee(tx_raw, fee_idx, gas, base_gas_multiplier=1):
# estimate the contract creation fee
tx_copy = tx_raw # create a copy of the input
tx_copy[fee_idx] = _int(0,
8) # replace fee with a byte array of lenght 8
return (defaults.BASE_GAS * base_gas_multiplier + gas + len(
rlp.encode(tx_copy)) * defaults.GAS_PER_BYTE) * defaults.GAS_PRICE
def std_fee(tx_raw, fee_idx, base_gas_multiplier=1):
# calculates the standard minimum transaction fee
tx_copy = tx_raw # create a copy of the input
tx_copy[fee_idx] = _int(0,
8) # replace fee with a byte array of lenght 8
return (defaults.BASE_GAS * base_gas_multiplier + len(
rlp.encode(tx_copy)) * defaults.GAS_PER_BYTE) * defaults.GAS_PRICE
def compute_min_fee(self, tx_data: dict, tx_descriptor: dict,
tx_raw: list) -> int:
"""
Compute the minimum fee for a transaction
Args:
tx_data (dict): the transaction data
tx_descriptor (dict): the descriptor of the transaction fields
tx_raw: the unencoded rlp data of the transaction
Returns:
the minimum fee for the transaction
"""
# if the fee is none means it is not necessary to compute the fee
if tx_descriptor.get("fee") is None:
return 0
# extract the parameters from the descriptor
fee_field_index = tx_descriptor.get("schema").get("fee").index
fee_type = tx_descriptor.get("fee").fee_type
base_gas_multiplier = tx_descriptor.get("fee").base_gas_multiplier
# for property based multiplier
if isinstance(base_gas_multiplier, tuple):
# check CONTRACT_CALL definition for an example
field_modifier_value = tx_data.get(base_gas_multiplier[0])
base_gas_multiplier = base_gas_multiplier[1].get(
field_modifier_value)
# if the fee is ttl based compute the ttl component
ttl_component = 0
if fee_type is TTL_BASED:
ttl = tx_data.get(tx_descriptor.get("fee").ttl_field)
ttl_component += (math.ceil(
32000 * ttl /
math.floor(60 * 24 * 365 / self.key_block_interval)))
# if the fee is for a ga meta compute the enclosed tx size based fee
ga_surplus = 0
if fee_type == GA_META:
tx_size = len(tx_raw[tx_descriptor.get("tx").index])
ga_surplus = (self.base_gas * base_gas_multiplier +
tx_size * self.gas_per_byte)
# begin calculation
current_fee, min_fee = -1, defaults.FEE
while current_fee != min_fee:
# save the min fee into current fee
current_fee = min_fee
# update the fee value
tx_raw[fee_field_index] = _int(current_fee)
# first calculate the size part
tx_size = len(rlp.encode(tx_raw))
min_fee = self.base_gas * base_gas_multiplier + tx_size * self.gas_per_byte
# add the ttl_component
min_fee += ttl_component
# remove the ga_surplus
min_fee -= ga_surplus
# finally multiply for gas the gas price
min_fee *= self.gas_price
return min_fee
def build_tx_object(tx_data, tx_raw, fee_idx, min_fee):
if tx_data.get("fee") < min_fee:
tx_native[fee_idx] = _int(min_fee)
tx_data["fee"] = min_fee
tx_encoded = encode_rlp(idf.TRANSACTION, tx_native)
tx = dict(
data=tx_data,
tx=tx_encoded,
hash=TxBuilder.compute_tx_hash(tx_encoded),
)
return namedtupled.map(tx, _nt_name="TxObject")
def build_tx_object(tx_data, tx_raw, fee_idx, min_fee):
# if fee is not set use the min fee
if tx_data.get("fee") <= 0:
tx_data["fee"] = min_fee
# if it is set check that is greater then the minimum fee
elif tx_data.get("fee") < min_fee:
raise TransactionFeeTooLow(
f'Minimum transaction fee is {min_fee}, provided fee is {tx_data.get("fee")}'
)
tx_native[fee_idx] = _int(tx_data.get("fee"))
tx_encoded = encode_rlp(idf.TRANSACTION, tx_native)
tx = dict(
data=tx_data,
tx=tx_encoded,
hash=TxBuilder.compute_tx_hash(tx_encoded),
)
return namedtupled.map(tx, _nt_name="TxObject")
def compute_min_fee(self, tx_data: dict, tx_descriptor: dict,
tx_raw: list) -> int:
# if the fee is none means it is not necessary to compute the fee
if tx_descriptor.get("fee") is None:
return 0
# extract the parameters from the descriptor
fee_field_index = tx_descriptor.get("schema").get("fee").index
base_gas_multiplier = tx_descriptor.get("fee").base_gas_multiplier
fee_type = tx_descriptor.get("fee").fee_type
# if the fee is ttl based compute the ttl component
ttl_component = 0
if fee_type is TTL_BASED:
ttl = tx_data.get(tx_descriptor.get("fee").ttl_field)
ttl_component += (math.ceil(
32000 * ttl /
math.floor(60 * 24 * 365 / self.key_block_interval)))
# if the fee is for a ga meta compute the enclosed tx size based fee
ga_surplus = 0
if fee_type == GA_META:
tx_size = len(tx_raw[tx_descriptor.get("tx").index])
ga_surplus = (self.base_gas * base_gas_multiplier +
tx_size * self.gas_per_byte)
# begin calculation
current_fee, min_fee = -1, defaults.FEE
while current_fee != min_fee:
# save the min fee into current fee
current_fee = min_fee
# update the fee value
tx_raw[fee_field_index] = _int(current_fee)
# first calculate the size part
tx_size = len(rlp.encode(tx_raw))
min_fee = self.base_gas * base_gas_multiplier + tx_size * self.gas_per_byte
# add the ttl_component
min_fee += ttl_component
# remove the ga_surplus
min_fee -= ga_surplus
# finally multiply for gas the gas price
min_fee *= self.gas_price
return min_fee
def _tx_native(op, **kwargs):
def std_fee(tx_raw, fee_idx, base_gas_multiplier=1):
# calculates the standard minimum transaction fee
tx_copy = tx_raw # create a copy of the input
tx_copy[fee_idx] = _int(0, 8) # replace fee with a byte array of lenght 8
return (defaults.BASE_GAS * base_gas_multiplier + len(rlp.encode(tx_copy)) * defaults.GAS_PER_BYTE) * defaults.GAS_PRICE
def contract_fee(tx_raw, fee_idx, gas, base_gas_multiplier=1):
# estimate the contract creation fee
tx_copy = tx_raw # create a copy of the input
tx_copy[fee_idx] = _int(0, 8) # replace fee with a byte array of lenght 8
return (defaults.BASE_GAS * base_gas_multiplier + gas + len(rlp.encode(tx_copy)) * defaults.GAS_PER_BYTE) * defaults.GAS_PRICE
def oracle_fee(tx_raw, fee_idx, relative_ttl):
# estimate oracle fees
tx_copy = tx_raw # create a copy of the input
tx_copy[fee_idx] = _int(0, 8) # replace fee with a byte array of lenght 8
fee = (defaults.BASE_GAS + len(rlp.encode(tx_copy)) * defaults.GAS_PER_BYTE)
fee += math.ceil(32000 * relative_ttl / math.floor(60 * 24 * 365 / defaults.KEY_BLOCK_INTERVAL))
return fee * defaults.GAS_PRICE
def build_tx_object(tx_data, tx_raw, fee_idx, min_fee):
if tx_data.get("fee") < min_fee:
tx_native[fee_idx] = _int(min_fee)
tx_data["fee"] = min_fee
tx_encoded = encode_rlp(idf.TRANSACTION, tx_native)
tx = dict(
data=tx_data,
tx=tx_encoded,
hash=TxBuilder.compute_tx_hash(tx_encoded),
)
return namedtupled.map(tx, _nt_name="TxObject")
# prepare tag and version
if op == PACK_TX:
tag = kwargs.get("tag", 0)
vsn = kwargs.get("vsn", 1)
tx_data = kwargs
elif op == UNPACK_TX:
tx_native = decode_rlp(kwargs.get("tx", []))
tag = _int_decode(tx_native[0])
else:
raise Exception("Invalid operation")
# check the tags
if tag == idf.OBJECT_TAG_SPEND_TRANSACTION:
tx_field_fee_index = 5
if op == PACK_TX: # pack transaction
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("sender_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("recipient_id")),
_int(kwargs.get("amount")),
_int(kwargs.get("fee")), # index 5
_int(kwargs.get("ttl")),
_int(kwargs.get("nonce")),
_binary(kwargs.get("payload"))
]
min_fee = std_fee(tx_native, tx_field_fee_index)
elif op == UNPACK_TX: # unpack transaction
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
sender_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
recipient_id=encode(idf.ACCOUNT_ID, tx_native[3][1:]),
amount=_int_decode(tx_native[4]),
fee=_int_decode(tx_native[5]),
ttl=_int_decode(tx_native[6]),
nonce=_int_decode(tx_native[7]),
payload=_binary_decode(tx_native[8]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_NAME_SERVICE_PRECLAIM_TRANSACTION:
tx_field_fee_index = 5
if op == PACK_TX: # pack transaction
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("account_id")),
_int(kwargs.get("nonce")),
_id(idf.ID_TAG_COMMITMENT, kwargs.get("commitment_id")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl"))
]
min_fee = std_fee(tx_native, tx_field_fee_index)
elif op == UNPACK_TX: # unpack transaction
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
account_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
commitment_id=encode(idf.COMMITMENT, tx_native[4][1:]),
fee=_int_decode(tx_native[5]),
ttl=_int_decode(tx_native[6]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_NAME_SERVICE_CLAIM_TRANSACTION:
tx_field_fee_index = 6
if op == PACK_TX: # pack transaction
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("account_id")),
_int(kwargs.get("nonce")),
decode(kwargs.get("name")),
_binary(kwargs.get("name_salt")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl"))
]
min_fee = std_fee(tx_native, tx_field_fee_index)
elif op == UNPACK_TX: # unpack transaction
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
account_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
name=_binary_decode(tx_native[4], str),
name_salt=_binary_decode(tx_native[5], int),
fee=_int_decode(tx_native[6]),
ttl=_int_decode(tx_native[7]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_NAME_SERVICE_UPDATE_TRANSACTION:
tx_field_fee_index = 8
if op == PACK_TX: # pack transaction
# first asseble the pointers
def pointer_tag(pointer):
return {
"account_pubkey": idf.ID_TAG_ACCOUNT,
"oracle_pubkey": idf.ID_TAG_ORACLE,
"contract_pubkey": idf.ID_TAG_CONTRACT,
"channel_pubkey": idf.ID_TAG_CHANNEL
}.get(pointer.get("key"))
ptrs = [[_binary(p.get("key")), _id(pointer_tag(p), p.get("id"))] for p in kwargs.get("pointers", [])]
# then build the transaction
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("account_id")),
_int(kwargs.get("nonce")),
_id(idf.ID_TAG_NAME, kwargs.get("name_id")),
_int(kwargs.get("name_ttl")),
ptrs,
_int(kwargs.get("client_ttl")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl"))
]
min_fee = std_fee(tx_native, tx_field_fee_index)
elif op == UNPACK_TX: # unpack transaction
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
account_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
name=encode(idf.NAME, tx_native[4][1:]),
name_ttl=_int_decode(tx_native[5]),
pointers=[], # TODO: decode pointers
client_ttl=_int_decode(tx_native[7]),
fee=_int_decode(tx_native[8]),
ttl=_int_decode(tx_native[9]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_NAME_SERVICE_TRANSFER_TRANSACTION:
tx_field_fee_index = 6
if op == PACK_TX: # pack transaction
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("account_id")),
_int(kwargs.get("nonce")),
_id(idf.ID_TAG_NAME, kwargs.get("name_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("recipient_id")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl")),
]
min_fee = std_fee(tx_native, tx_field_fee_index)
elif op == UNPACK_TX: # unpack transaction
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
account_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
name=encode(idf.NAME, tx_native[4][1:]),
recipient_id=encode(idf.ACCOUNT_ID, tx_native[5][1:]),
fee=_int_decode(tx_native[6]),
ttl=_int_decode(tx_native[7]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_NAME_SERVICE_REVOKE_TRANSACTION:
tx_field_fee_index = 5
if op == PACK_TX: # pack transaction
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("account_id")),
_int(kwargs.get("nonce")),
_id(idf.ID_TAG_NAME, kwargs.get("name_id")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl")),
]
min_fee = std_fee(tx_native, tx_field_fee_index)
elif op == UNPACK_TX: # unpack transaction
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
account_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
name=encode(idf.NAME, tx_native[4][1:]),
fee=_int_decode(tx_native[5]),
ttl=_int_decode(tx_native[6]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_CONTRACT_CREATE_TRANSACTION:
tx_field_fee_index = 6
if op == PACK_TX: # pack transaction
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("owner_id")),
_int(kwargs.get("nonce")),
_binary(decode(kwargs.get("code"))),
_int(kwargs.get("vm_version")) + _int(kwargs.get("abi_version"), 2),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl")),
_int(kwargs.get("deposit")),
_int(kwargs.get("amount")),
_int(kwargs.get("gas")),
_int(kwargs.get("gas_price")),
_binary(decode(kwargs.get("call_data"))),
]
# TODO: verify the fee caluclation for the contract
min_fee = contract_fee(tx_native, tx_field_fee_index, kwargs.get("gas"), base_gas_multiplier=5)
elif op == UNPACK_TX: # unpack transaction
vml = len(tx_native[5]) # this is used to extract the abi and vm version from the 5th field
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
owner_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
code=encode(idf.BYTECODE, tx_native[4][1:]),
vm_version=_int_decode(tx_native[5][0:vml - 2]),
abi_version=_int_decode(tx_native[5][vml - 2:]),
fee=_int_decode(tx_native[6]),
ttl=_int_decode(tx_native[7]),
deposit=_int_decode(tx_native[8]),
amount=_int_decode(tx_native[9]),
gas=_int_decode(tx_native[10]),
gas_price=_int_decode(tx_native[11]),
call_data=encode(idf.BYTECODE, tx_native[12][1:]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_CONTRACT_CALL_TRANSACTION:
tx_field_fee_index = 6
if op == PACK_TX: # pack transaction
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("caller_id")),
_int(kwargs.get("nonce")),
_id(idf.ID_TAG_CONTRACT, kwargs.get("contract_id")),
_int(kwargs.get("abi_version")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl")),
_int(kwargs.get("amount")),
_int(kwargs.get("gas")),
_int(kwargs.get("gas_price")),
_binary(decode(kwargs.get("call_data"))),
]
min_fee = contract_fee(tx_native, tx_field_fee_index, kwargs.get("gas"), base_gas_multiplier=30)
elif op == UNPACK_TX: # unpack transaction
vml = len(tx_native[5]) # this is used to extract the abi and vm version from the 5th field
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
caller_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
contract_id=encode(idf.CONTRACT_ID, tx_native[4][1:]),
abi_version=_int_decode(tx_native[5]),
fee=_int_decode(tx_native[6]),
ttl=_int_decode(tx_native[7]),
amount=_int_decode(tx_native[8]),
gas=_int_decode(tx_native[9]),
gas_price=_int_decode(tx_native[10]),
call_data=encode(idf.BYTECODE, tx_native[11][1:]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_CHANNEL_CREATE_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("initiator")),
_int(kwargs.get("initiator_amount")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("responder")),
_int(kwargs.get("responder_amount")),
_int(kwargs.get("channel_reserve")),
_int(kwargs.get("lock_period")),
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
# _[id(delegate_ids)], TODO: handle delegate ids
_binary(kwargs.get("state_hash")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 9
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_CHANNEL_DEPOSIT_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_CHANNEL, kwargs.get("channel_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("from_id")),
_int(kwargs.get("amount")),
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
_binary(kwargs.get("state_hash")),
_int(kwargs.get("round")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 6
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_CHANNEL_WITHDRAW_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_CHANNEL, kwargs.get("channel_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("to_id")),
_int(kwargs.get("amount")),
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
_binary(kwargs.get("state_hash")),
_int(kwargs.get("round")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 6
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_CHANNEL_CLOSE_MUTUAL_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_CHANNEL, kwargs.get("channel_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("from_id")),
_int(kwargs.get("initiator_amount_final")),
_int(kwargs.get("responder_amount_final")),
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 7
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_CHANNEL_CLOSE_SOLO_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_CHANNEL, kwargs.get("channel_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("from_id")),
_binary(kwargs.get("payload")),
# _poi(kwargs.get("poi")), TODO: implement support for _poi
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 7
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_CHANNEL_SLASH_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_CHANNEL, kwargs.get("channel_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("from_id")),
_binary(kwargs.get("payload")),
# _poi(kwargs.get("poi")), TODO: implement support for _poi
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 7
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_CHANNEL_SETTLE_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_CHANNEL, kwargs.get("channel_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("from_id")),
_int(kwargs.get("initiator_amount_final")),
_int(kwargs.get("responder_amount_final")),
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 7
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_CHANNEL_SNAPSHOT_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_CHANNEL, kwargs.get("channel_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("from_id")),
_binary(kwargs.get("payload")),
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 6
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_CHANNEL_FORCE_PROGRESS_TRANSACTION:
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_CHANNEL, kwargs.get("channel_id")),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("from_id")),
_binary(kwargs.get("payload")),
_int(kwargs.get("round")),
_binary(kwargs.get("update")),
_binary(kwargs.get("state_hash")),
# _trees(kwargs.get("offchain_trees")), TODO: implement support for _trees
_int(kwargs.get("ttl")),
_int(kwargs.get("fee")),
_int(kwargs.get("nonce")),
]
tx_field_fee_index = 9
min_fee = std_fee(tx_native, tx_field_fee_index)
elif tag == idf.OBJECT_TAG_ORACLE_REGISTER_TRANSACTION:
tx_field_fee_index = 9
if op == PACK_TX: # pack transaction
oracle_ttl = kwargs.get("oracle_ttl", {})
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("account_id")),
_int(kwargs.get("nonce")),
_binary(kwargs.get("query_format")),
_binary(kwargs.get("response_format")),
_int(kwargs.get("query_fee")),
_int(0 if oracle_ttl.get("type") == idf.ORACLE_TTL_TYPE_DELTA else 1),
_int(oracle_ttl.get("value")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl")),
_int(kwargs.get("vm_version")),
]
min_fee = oracle_fee(tx_native, tx_field_fee_index, oracle_ttl.get("value"))
elif op == UNPACK_TX: # unpack transaction
vml = len(tx_native[5]) # this is used to extract the abi and vm version from the 5th field
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
account_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
query_format=_binary_decode(tx_native[4]),
response_format=_binary_decode(tx_native[5]),
query_fee=_int_decode(tx_native[6]),
oracle_ttl=dict(
type=idf.ORACLE_TTL_TYPE_DELTA if _int_decode(tx_native[7]) else idf.ORACLE_TTL_TYPE_BLOCK,
value=_int_decode(tx_native[8]),
),
fee=_int_decode(tx_native[9]),
ttl=_int_decode(tx_native[10]),
vm_version=_int_decode(tx_native[11]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_ORACLE_QUERY_TRANSACTION:
tx_field_fee_index = 11
if op == PACK_TX: # pack transaction
query_ttl = kwargs.get("query_ttl", {})
response_ttl = kwargs.get("response_ttl", {})
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ACCOUNT, kwargs.get("sender_id")),
_int(kwargs.get("nonce")),
_id(idf.ID_TAG_ORACLE, kwargs.get("oracle_id")),
_binary(kwargs.get("query")),
_int(kwargs.get("query_fee")),
_int(0 if query_ttl.get("type") == idf.ORACLE_TTL_TYPE_DELTA else 1),
_int(query_ttl.get("value")),
_int(0 if response_ttl.get("type") == idf.ORACLE_TTL_TYPE_DELTA else 1),
_int(response_ttl.get("value")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl")),
]
min_fee = oracle_fee(tx_native, tx_field_fee_index, query_ttl.get("value"))
elif op == UNPACK_TX: # unpack transaction
vml = len(tx_native[5]) # this is used to extract the abi and vm version from the 5th field
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
sender_id=encode(idf.ACCOUNT_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
oracle_id=encode(idf.ORACLE_ID, tx_native[4][1:]),
query=_binary_decode(tx_native[5]),
query_fee=_int_decode(tx_native[6]),
query_ttl=dict(
type=idf.ORACLE_TTL_TYPE_DELTA if _int_decode(tx_native[7]) else idf.ORACLE_TTL_TYPE_BLOCK,
value=_int_decode(tx_native[8]),
),
response_ttl=dict(
type=idf.ORACLE_TTL_TYPE_DELTA if _int_decode(tx_native[9]) else idf.ORACLE_TTL_TYPE_BLOCK,
value=_int_decode(tx_native[10]),
),
fee=_int_decode(tx_native[11]),
ttl=_int_decode(tx_native[12]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_ORACLE_RESPONSE_TRANSACTION:
tx_field_fee_index = 8
if op == PACK_TX: # pack transaction
response_ttl = kwargs.get("response_ttl", {})
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ORACLE, kwargs.get("oracle_id")),
_int(kwargs.get("nonce")),
decode(kwargs.get("query_id")),
_binary(kwargs.get("response")),
_int(0 if response_ttl.get("type") == idf.ORACLE_TTL_TYPE_DELTA else 1),
_int(response_ttl.get("value")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl")),
]
min_fee = oracle_fee(tx_native, tx_field_fee_index, response_ttl.get("value"))
elif op == UNPACK_TX: # unpack transaction
vml = len(tx_native[5]) # this is used to extract the abi and vm version from the 5th field
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
oracle_id=encode(idf.ORACLE_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
query_id=encode(idf.ORACLE_QUERY_ID, tx_native[4][1:]),
response=_binary(tx_native[5]),
response_ttl=dict(
type=idf.ORACLE_TTL_TYPE_DELTA if _int_decode(tx_native[6]) else idf.ORACLE_TTL_TYPE_BLOCK,
value=_int_decode(tx_native[7]),
),
fee=_int_decode(tx_native[8]),
ttl=_int_decode(tx_native[9]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
elif tag == idf.OBJECT_TAG_ORACLE_EXTEND_TRANSACTION:
tx_field_fee_index = 6
if op == PACK_TX: # pack transaction
oracle_ttl = kwargs.get("oracle_ttl", {})
tx_native = [
_int(tag),
_int(vsn),
_id(idf.ID_TAG_ORACLE, kwargs.get("oracle_id")),
_int(kwargs.get("nonce")),
_int(0 if oracle_ttl.get("type", {}) == idf.ORACLE_TTL_TYPE_DELTA else 1),
_int(oracle_ttl.get("value")),
_int(kwargs.get("fee")),
_int(kwargs.get("ttl")),
]
min_fee = oracle_fee(tx_native, tx_field_fee_index, oracle_ttl.get("value"))
elif op == UNPACK_TX: # unpack transaction
vml = len(tx_native[5]) # this is used to extract the abi and vm version from the 5th field
tx_data = dict(
tag=tag,
vsn=_int_decode(tx_native[1]),
oracle_id=encode(idf.ORACLE_ID, tx_native[2][1:]),
nonce=_int_decode(tx_native[3]),
oracle_ttl=dict(
type=idf.ORACLE_TTL_TYPE_DELTA if _int_decode(tx_native[4]) else idf.ORACLE_TTL_TYPE_BLOCK,
value=_int_decode(tx_native[5]),
),
fee=_int_decode(tx_native[6]),
ttl=_int_decode(tx_native[7]),
)
min_fee = tx_data.get("fee")
else:
raise Exception("Invalid operation")
return build_tx_object(tx_data, tx_native, tx_field_fee_index, min_fee)
else:
raise UnsupportedTransactionType(f"Unusupported transaction tag {tag}")
