def setUpClass(cls, handler, client_class=None):
url = os.getenv('TEST_BIND', 'tcp://127.0.0.1:4004')
cls.validator = RemmeMockValidator()
cls.validator.listen(url)
for item in TP_HANDLERS:
if not cls.validator.register_processor():
raise Exception('Failed to register processor')
cls.factory = None
cls._zmq_patcher = mock.patch('remme.clients.basic.Stream',
return_value=cls.validator)
cls._zmq_patcher_obj = cls._zmq_patcher.start()
cls.handler = handler
cls.client_class = client_class
cls._pk_patcher = mock.patch(
'remme.clients.basic.BasicClient.get_signer_priv_key_from_file',
return_value=BasicClient.generate_signer())
cls._pk_patcher_obj = cls._pk_patcher.start()
# generate token account addresses
cls.account_signer1 = cls.get_new_signer()
cls.account_address1 = AccountHandler.make_address_from_data(
cls.account_signer1.get_public_key().as_hex())
cls.account_signer2 = cls.get_new_signer()
cls.account_address2 = AccountHandler.make_address_from_data(
cls.account_signer2.get_public_key().as_hex())
cls._factory = cls.handler.get_message_factory(cls.account_signer1)
def _swap_expire(self, context, signer_pubkey, swap_expire_payload):
"""
Transaction initiator (Alice) decides to withdraw deposit in 24 hours, or Bob in 48 hours
"""
swap_info = self.get_swap_info_from_swap_id(
context, swap_expire_payload.swap_id)
if AccountHandler.make_address_from_data(
signer_pubkey) != swap_info.sender_address:
raise InvalidTransaction(
'Signer is not the one who opened the swap.')
now = datetime.datetime.utcnow()
created_at = self.get_datetime_from_timestamp(swap_info.created_at)
time_delta = INITIATOR_TIME_DELTA_LOCK if swap_info.is_initiator else NON_INITIATOR_TIME_DELTA_LOCK
if (created_at + time_delta) > now:
intiator_name = "initiator" if swap_info.is_initiator else "non initiator"
raise InvalidTransaction(
'Swap {} needs to wait {} hours since timestamp: {} to withdraw.'
.format(intiator_name, INTIATOR_TIME_LOCK,
swap_info.created_at))
swap_info.is_closed = True
transfer_payload = AccountClient.get_transfer_payload(
swap_info.sender_address, swap_info.amount)
token_updated_state = AccountHandler._transfer_from_address(
context, ZERO_ADDRESS, transfer_payload)
return {**self.get_state_update(swap_info), **token_updated_state}
def _swap_approve(self, context, signer_pubkey, swap_approve_payload):
"""
Only called by Alice to approve REMchain => other transaction for Bob to close it.
"""
LOGGER.info('swap id: {}'.format(swap_approve_payload.swap_id))
swap_info = self.get_swap_info_from_swap_id(
context, swap_approve_payload.swap_id)
if not swap_info.is_initiator or swap_info.sender_address != AccountHandler.make_address_from_data(
signer_pubkey):
raise InvalidTransaction(
'Only transaction initiator (Alice) may approve the swap, '
'once Bob provided a secret lock.')
if not swap_info.secret_lock:
raise InvalidTransaction(
'Secret Lock is needed for Bob to provide a secret key.')
if swap_info.is_closed:
raise InvalidTransaction('Swap id {} is already closed.'.format(
swap_info.swap_id))
swap_info.is_approved = True
return self.get_state_update(swap_info)
def store_pub_key(self, public_key, entity_hash, entity_hash_signature, valid_from, valid_to):
payload = self.get_new_pub_key_payload(public_key,
entity_hash,
entity_hash_signature,
valid_from,
valid_to)
crt_address = self.make_address_from_data(public_key)
account_address = AccountHandler.make_address_from_data(self._signer.get_public_key().as_hex())
settings_address = _make_settings_key('remme.economy_enabled')
addresses_input = [crt_address, account_address, settings_address, self.get_user_address()]
addresses_output = [crt_address, self.get_user_address()]
return self._send_transaction(PubKeyMethod.STORE, payload, addresses_input, addresses_output), crt_address
def store_pub_key(self, public_key, entity_hash, entity_hash_signature,
valid_from, valid_to):
payload = self.get_new_pub_key_payload(public_key, entity_hash,
entity_hash_signature,
valid_from, valid_to)
crt_address = self.make_address_from_data(public_key)
account_address = AccountHandler.make_address_from_data(
self._signer.get_public_key().as_hex())
return self._send_transaction(
PubKeyMethod.STORE, payload,
[crt_address, account_address]), crt_address
def get_user_address(self):
return AccountHandler.make_address_from_data(
self._signer.get_public_key().as_hex())
def _store_pub_key(self, context, signer_pubkey, transaction_payload):
address = self.make_address_from_data(transaction_payload.public_key)
LOGGER.info('Pub key address {}'.format(address))
account_address = AccountHandler.make_address_from_data(signer_pubkey)
LOGGER.info('Account address {}'.format(address))
data, account = get_multiple_data(context,
[(address, PubKeyStorage),
(account_address, Account)])
if data:
raise InvalidTransaction('This pub key is already registered.')
cert_signer_pubkey = load_pem_public_key(
transaction_payload.public_key.encode('utf-8'),
backend=default_backend())
try:
ehs_bytes = binascii.unhexlify(
transaction_payload.entity_hash_signature)
eh_bytes = binascii.unhexlify(transaction_payload.entity_hash)
except binascii.Error:
LOGGER.debug(
f'entity_hash_signature {transaction_payload.entity_hash_signature}'
)
LOGGER.debug(f'entity_hash {transaction_payload.entity_hash}')
raise InvalidTransaction(
'Entity hash or signature not a hex format')
# FIXME: For support PKCS1v15 and PSS
LOGGER.warn('HAZARD: Detecting padding for verification')
sigerr = 0
pkcs = padding.PKCS1v15()
pss = padding.PSS(mgf=padding.MGF1(hashes.SHA512()),
salt_length=padding.PSS.MAX_LENGTH)
for _padding in (pkcs, pss):
try:
cert_signer_pubkey.verify(ehs_bytes, eh_bytes, _padding,
hashes.SHA512())
LOGGER.warn('HAZARD: Padding found: %s', _padding.name)
except InvalidSignature:
sigerr += 1
if sigerr == 2:
raise InvalidTransaction('Invalid signature')
valid_from = datetime.fromtimestamp(transaction_payload.valid_from)
valid_to = datetime.fromtimestamp(transaction_payload.valid_to)
if valid_to - valid_from > PUB_KEY_MAX_VALIDITY:
raise InvalidTransaction(
'The public key validity exceeds the maximum value.')
data = PubKeyStorage()
data.owner = signer_pubkey
data.payload.CopyFrom(transaction_payload)
data.revoked = False
if not account:
account = Account()
if _get_setting_value(context, 'remme.economy_enabled',
'true').lower() == 'true':
if account.balance < PUB_KEY_STORE_PRICE:
raise InvalidTransaction(
'Not enough tokens to register a new pub key. Current balance: {}'
.format(account.balance))
account.balance -= PUB_KEY_STORE_PRICE
if address not in account.pub_keys:
account.pub_keys.append(address)
return {address: data, account_address: account}
def _swap_init(self, context, signer_pubkey, swap_init_payload):
"""
if SecretLockOptionalBob is provided, Bob uses _swap_init to respond to requested swap
Otherwise, Alice uses _swap_init to request a swap and thus, Bob can't receive funds until Alice "approves".
"""
LOGGER.info("0. Check if swap ID already exists")
# 0. Check if swap ID already exists
if self.get_swap_info_from_swap_id(context,
swap_init_payload.swap_id,
to_raise_exception=False):
raise InvalidTransaction(
'Atomic swap ID has already been taken, please use a different one!'
)
# END
swap_info = AtomicSwapInfo()
swap_info.swap_id = swap_init_payload.swap_id
swap_info.is_closed = False
swap_info.amount = swap_init_payload.amount
swap_info.created_at = swap_init_payload.created_at
swap_info.email_address_encrypted_optional = swap_init_payload.email_address_encrypted_by_initiator
swap_info.sender_address = AccountHandler.make_address_from_data(
signer_pubkey)
swap_info.sender_address_non_local = swap_init_payload.sender_address_non_local
swap_info.receiver_address = swap_init_payload.receiver_address
if not AccountHandler.is_handler_address(swap_info.receiver_address):
raise InvalidTransaction(
'Receiver address is not of a Token type.')
LOGGER.info("1. Ensure transaction initiated within an hour")
# 1. Ensure transaction initiated within an hour
swap_info.secret_lock = swap_init_payload.secret_lock_by_solicitor
created_at = self.get_datetime_from_timestamp(swap_info.created_at)
now = datetime.datetime.utcnow()
if not (now - datetime.timedelta(hours=1) < created_at < now):
raise InvalidTransaction(
'Transaction is created a long time ago or timestamp is assigned set.'
)
# END
LOGGER.info("2. Check weather the sender is Alice")
# 2. Check weather the sender is Alice:
swap_info.is_initiator = not swap_init_payload.secret_lock_by_solicitor
# if Bob
swap_info.is_approved = not swap_info.is_initiator
# END
# 3. Transfer funds to zero address.
LOGGER.info("3. Transfer funds to zero address")
commission = int(_get_setting_value(context, SETTINGS_SWAP_COMMISSION))
if commission < 0:
raise InvalidTransaction('Wrong commission address.')
LOGGER.info("4. Get sender's account {}".format(
swap_info.sender_address))
account = get_account_by_address(context, swap_info.sender_address)
total_amount = swap_info.amount + commission
if account.balance < total_amount:
raise InvalidTransaction(
'Not enough balance to perform the transaction in '
'the amount (with a commission) {}.'.format(total_amount))
transfer_payload = AccountClient.get_transfer_payload(
ZERO_ADDRESS, total_amount)
token_updated_state = AccountHandler._transfer_from_address(
context, swap_info.sender_address, transfer_payload)
LOGGER.info("Save state")
return {**self.get_state_update(swap_info), **token_updated_state}
def is_valid_token_balance():
account_client = AccountClient()
signer_pub_key = account_client.get_signer().get_public_key().as_hex()
signer_balance = account_client.get_balance(
AccountHandler.make_address_from_data(signer_pub_key))
return signer_balance >= PUB_KEY_STORE_PRICE
from remme.tp.account import AccountHandler, TransactionPayload
from remme.settings import GENESIS_ADDRESS, ENABLE_ECONOMY
OUTPUT_BATCH = '/genesis/batch/token-proposal.batch'
if __name__ == '__main__':
parser = argparse.ArgumentParser(
description='File with a public key to assign initial supply.')
parser.add_argument('token_supply')
args = parser.parse_args()
account_client = AccountClient()
if ENABLE_ECONOMY:
zero_address = AccountHandler.make_address('0' * 64)
target_address = AccountHandler.make_address_from_data(
account_client.get_signer().get_public_key().as_hex())
print('Issuing {} tokens to address {}'.format(args.token_supply,
target_address))
addresses_input_output = [GENESIS_ADDRESS, target_address]
payload = TransactionPayload()
payload.method = AccountMethod.GENESIS
payload.data = account_client.get_genesis_payload(
args.token_supply).SerializeToString()
batch_list = AccountClient().make_batch_list(payload,
addresses_input_output)
batch_file = open(OUTPUT_BATCH, 'wb')