def validate_proof(proof: List[dict], hex_target_hash: str,
hex_merkle_root: str):
hex_merkle_root = ContractDataParser.to_reserve_hex_str(
hex_merkle_root)
hex_target_hash = ContractDataParser.to_reserve_hex_str(
hex_target_hash)
if len(proof) == 0:
return hex_target_hash == hex_merkle_root
else:
hex_proof_hash = hex_target_hash
for node in proof:
sibling = ContractDataParser.to_reserve_hex_str(
node['TargetHash'])
try:
direction = node['Direction'].lower()
except KeyError:
raise SDKException(ErrorCode.other_error('Invalid proof'))
if direction == 'left':
value = binascii.a2b_hex('01' + sibling + hex_proof_hash)
hex_proof_hash = Digest.sha256(value, is_hex=True)
elif direction == 'right':
value = binascii.a2b_hex('01' + hex_proof_hash + sibling)
hex_proof_hash = Digest.sha256(value, is_hex=True)
else:
raise SDKException(ErrorCode.other_error('Invalid proof.'))
return hex_proof_hash == hex_merkle_root
def test_address_from_vm_code(self):
code = '55c56b6a00527ac46a51527ac46a00c30548656c6c6f7d9c7c756419006a51c300c36a52527ac46a52c3650d006c7' \
'566620300006c756652c56b6a00527ac46a00c3681553797374656d2e52756e74696d652e4e6f74696679516c7566'
code_address = Address.address_from_vm_code(code)
contract_address = 'f2b6efc3e4360e69b8ff5db8ce8ac73651d07a12'
self.assertEqual(contract_address, code_address.to_hex_str())
self.assertEqual(contract_address,
b2a_hex(code_address.to_bytes()).decode('ascii'))
self.assertEqual(contract_address,
b2a_hex(code_address.to_bytearray()).decode('ascii'))
self.assertEqual(
contract_address,
ContractDataParser.to_reserve_hex_str(
code_address.to_reverse_hex_str()))
self.assertEqual(contract_address,
sdk.neo_vm.avm_code_to_hex_contract_address(code))
bytes_address = sdk.neo_vm.avm_code_to_bytes_contract_address(code)
self.assertEqual(contract_address,
b2a_hex(bytes_address).decode('ascii'))
bytearray_address = sdk.neo_vm.avm_code_to_bytearray_contract_address(
code)
self.assertEqual(contract_address,
b2a_hex(bytearray_address).decode('ascii'))
