def get_message_for_signing(self):
if is_eip_155_signed_transaction(self):
chain_id = extract_chain_id(self.v)
txn_parts = rlp.decode(rlp.encode(self))
txn_parts_for_signing = txn_parts[:-3] + [int_to_big_endian(chain_id), b'', b'']
return rlp.encode(txn_parts_for_signing)
else:
return rlp.encode(SpuriousDragonUnsignedTransaction(
nonce=self.nonce,
gas_price=self.gas_price,
gas=self.gas,
to=self.to,
value=self.value,
data=self.data,
))
def chain_id(self):
if is_eip_155_signed_transaction(self):
return extract_chain_id(self.v)
else:
return None
def v_max(self):
if is_eip_155_signed_transaction(self):
return 36 + (2 * self.chain_id)
else:
return 28