def _handle_withdrawals(self):
session = Session()
plugin_name = __name__.split('.')[1]
my_currency_ids = [
c for c, p in currencies.items() if p == plugin_name
]
pending_withdrawals = session.query(Withdrawal).filter_by(
currency=my_currency_ids[0],
accepted=True,
executed=False,
rejected=False)
for withdrawal in pending_withdrawals:
account = session.query(Account).filter_by(
address=withdrawal.address).first()
logger.info("New withdrawal: %s %s" % (account, withdrawal))
withdrawal.executed = True
session.commit()
session.flush()
real_amount = withdrawal.amount - dogecoin_withdrawal_fee * (
10**self.DOGECOIN_DECIMAL_PLACES)
withdrawal.dogecoin_txid = send_dogecoin(
withdrawal.dogecoin_address, real_amount)
session.commit()
session.flush()
session.commit()
def __init__(self, session: Session, request_args):
if 'Session-Id' in request_args:
# TODO: Respect session's timeout
user_session = session.query(UserSession).filter_by(
session_id=request_args['Session-Id']).first()
self.account = session.query(Account).filter_by(
address=user_session.address).first()
self.public_key = self.account.public_key
self.address = self.account.address
self.asset_id = user_session.currency
else:
self.asset_id = request_args['Asset-Id']
self.auth_hash = b58decode(request_args['AuthHash'])
self.auth_nonce = b58decode(request_args['AuthNonce'])
self.public_key = bytes(request_args['Public-Key'], 'latin-1')
self.address = request_args['Address']
if self.address != public_key_to_account(
request_args['Public-Key']):
raise PermissionError("Public key is and address differ")
self.account = Account.get_or_create(session, self.address,
self.public_key)
if not self._is_auth_hash_valid(self.public_key, self.auth_hash,
self.auth_nonce, self.asset_id):
raise PermissionError("WAC header is invalid")
user_session = UserSession(self.address, self.asset_id)
session.add(user_session)
self.session_id = user_session.session_id
def _handle_deposits(self):
session = Session()
plugin_name = __name__.split('.')[1]
my_currency_ids = [
c for c, p in currencies.items() if p == plugin_name
]
# TODO: List unconfirmed deposits
for transaction in get_last_transactions():
if transaction['category'] == 'receive' and transaction[
'confirmations'] >= dogecoin_confirmations:
account = session.query(Account).filter_by(
dogecoin_deposit_address=transaction['address']).first()
if account is not None:
deposit = session.query(Deposit).filter_by(
dogecoin_txid=transaction['txid']).first()
if deposit is None:
real_amount = transaction['amount']
if real_amount <= 0:
amount = 0
amount = int(real_amount *
(10**self.DOGECOIN_DECIMAL_PLACES))
deposit = Deposit(account.address, my_currency_ids[0],
amount)
deposit.dogecoin_txid = transaction['txid']
deposit.accepted = True
logger.info("New deposit: %s %s" % (account, deposit))
session.add(deposit)
session.commit()
session.flush()
session.commit()
def _scan_block(self, session: Session, block_number: int):
transactions = get_transactions_for_block(block_number)
for tx in transactions:
try:
if tx["type"] == 4: # Asset transfer transaction
account = session.query(Account).filter_by(
deposit_address=tx["recipient"]).first()
if account and session.query(BlockchainTransaction).get(
tx["id"]) is None:
attachment = ''.join(
chr(x) for x in b58decode(tx["attachment"]))
logging.info(
"\t❤❤❤❤ A new withdrawal transaction received. - %s"
% tx["id"])
logging.info("\tFrom %s" % account.address)
logging.info("\tTo %s" % tx["recipient"])
logging.info("\tAsset %s" % tx["assetId"])
logging.info("\tAmount %d" % tx["amount"])
logging.info("\tAttachment %s" % attachment)
# TODO: Check if currency is defined
blockchain_transaction = BlockchainTransaction(
tx["id"], account.address, tx["type"],
tx["timestamp"], attachment, tx["assetId"],
tx["amount"])
session.add(blockchain_transaction)
except KeyError:
pass # Unknown transaction type
def _handle_withdrawals(self):
session = Session()
# TODO: Optimize this query to use relations
pending_withdrawals = session.query(Withdrawal).filter_by(
accepted=False, executed=False, rejected=False)
for withdrawal in pending_withdrawals:
transaction = session.query(BlockchainTransaction).filter_by(
attachment=withdrawal.attachment).first()
if transaction is not None:
withdrawal.accept(transaction)
session.commit()
session.flush()
session.commit()
session.flush()
def send_money(self, session: Session, account: str, amount: int):
acc = session.query(BankSimBalances).filter_by(
bank_account=account).first()
if acc is None:
acc = BankSimBalances(account, amount)
session.add(acc)
else:
acc.balance += amount
def index():
session = Session()
if "account" in request.form and "amount" in request.form:
deposit_iban = request.form["account"]
amount = int(
float(request.form["amount"]) *
(10**list(currencies.values())[0].decimals))
account = session.query(Account).filter_by(
deposit_iban=deposit_iban).first()
if account is None:
return "There is no account with IBAN %s" % (deposit_iban)
deposit = Deposit(account.address, list(currencies.keys())[0], amount)
# We are accepting banking transactions immediately.
# We are waiting for confirmations only on blockchain transactions.
deposit.accepted = True
session.add(deposit)
session.commit()
return """Your deposit to %s for %d.%.2d USD was made""" % (
deposit_iban, amount /
(10.**list(currencies.values())[0].decimals), amount %
(10.**list(currencies.values())[0].decimals))
session.commit()
msg = """Welcome to the Bank simulator!<br/>Make a deposit:
<form method='POST' action='/'>
Account [IBAN]:<input name='account'/><br/>
Amount [USD]:<input name='amount'/><br/>
<input type='submit'/></form><br/>
<b>Account balances:</b><br/>"""
for balance in session.query(BankSimBalances).all():
msg += "%s - %d.%.2d<br/>" % (balance.bank_account, balance.balance /
100, balance.balance % 100)
return msg
def _handle_withdrawals(self):
session = Session()
# TODO: API for this
plugin_name = __name__.split('.')[1]
my_currency_ids = [c for c, p in currencies.items() if p == plugin_name]
# TODO: Create a cutesy API for plugin creators
print("asdfasdfasdfadsf")
withdrawals = session.query(Withdrawal).filter_by(accepted=True, executed=False, rejected=False).filter(
Withdrawal.currency.in_(my_currency_ids))
for withdrawal in withdrawals:
logger.info("Executing withdrawal %s" % withdrawal)
withdrawal.executed = True
session.commit()
self.bank_sim.send_money(session, withdrawal.bank_account, withdrawal.amount)
session.commit()
session.flush()
session.commit()
def _handle_deposits(self):
session = Session()
pending_deposits = session.query(Deposit).filter_by(accepted=True,
executed=False,
rejected=False)
for deposit in pending_deposits:
logger.info("Handling deposit %s" % deposit)
# TODO: Double verify deposits [check for amount of confirmations] ???
# TODO: Use two phased transactions here to protect against two WavesManagers running at once
deposit.executed = True
session.commit()
deposit.waves_transaction_id = send_currency(
deposit.currency, deposit.address, deposit.amount)
session.commit()
session.flush()
# Send 0.1 Waves for transaction fees if the client has less than 0.01
if get_waves_balance(deposit.address) < 1000000:
send_currency(None, deposit.address, 10000000)
session.commit()
session.flush()