def distribute_tokens(logger: Logger, dbsession: Session, network: str,
ethereum_node_url: Union[str, Web3],
ethereum_abi_file: Optional[str],
ethereum_private_key: Optional[str],
ethereum_gas_limit: Optional[int],
ethereum_gas_price: Optional[int], token_address: str,
dists: List[DistributionEntry]) -> Tuple[int, int]:
"""Sends tokens to their first owners in primary markets."""
check_good_private_key(ethereum_private_key)
abi = get_abi(ethereum_abi_file)
web3 = create_web3(ethereum_node_url)
service = EthereumStoredTXService(network, dbsession, web3,
ethereum_private_key, ethereum_gas_price,
ethereum_gas_limit, BroadcastAccount,
PreparedTransaction)
logger.info(
"Starting creating distribution transactions for %s token from nonce %s",
token_address, service.get_next_nonce())
total = sum([dist.amount * 10**18 for dist in dists])
available = service.get_raw_token_balance(token_address, abi)
if total > available:
raise NotEnoughTokens(
"Not enough tokens for distribution. Account {} has {} raw token balance, needed {}"
.format(service.get_or_create_broadcast_account().address,
available, total))
new_distributes = old_distributes = 0
for d in tqdm(dists):
if not service.is_distributed(d.external_id, token_address):
# Going to tx queue
raw_amount = int(d.amount * 10**18)
note = "Distributing tokens, raw amount: {}".format(raw_amount)
service.distribute_tokens(d.external_id, d.address, raw_amount,
token_address, abi, note)
new_distributes += 1
else:
# CSV reimports
old_distributes += 1
logger.info("Prepared transactions for broadcasting for network %s",
network)
return new_distributes, old_distributes
def distribute_single(logger: Logger, dbsession: Session, network: str,
ethereum_node_url: Union[str, Web3],
ethereum_abi_file: Optional[str],
ethereum_private_key: Optional[str],
ethereum_gas_limit: Optional[int],
ethereum_gas_price: Optional[int], token_address: str,
ext_id: str, email: str, name: str, to_address: str,
amount: Decimal) -> bool:
"""Send out a single transfer.
:return: True if a new tx for broadcasting was created
"""
d = DistributionEntry(ext_id, email, name, to_address, amount)
check_good_private_key(ethereum_private_key)
abi = get_abi(ethereum_abi_file)
web3 = create_web3(ethereum_node_url)
service = EthereumStoredTXService(network, dbsession, web3,
ethereum_private_key, ethereum_gas_price,
ethereum_gas_limit, BroadcastAccount,
PreparedTransaction)
logger.info(
"Starting creating distribution transactions for %s token from nonce %s",
token_address, service.get_next_nonce())
total = d.amount * 10**18
available = service.get_raw_token_balance(token_address, abi)
if total > available:
raise NotEnoughTokens(
"Not enough tokens for distribution. Account {} has {} raw token balance, needed {}"
.format(service.get_or_create_broadcast_account().address,
available, total))
if not service.is_distributed(d.external_id, token_address):
# Going to tx queue
raw_amount = int(d.amount * 10**18)
note = "Distributing tokens, raw amount: {}".format(raw_amount)
service.distribute_tokens(d.external_id, d.address, raw_amount,
token_address, abi, note)
logger.info("New broadcast has been created")
return True
else:
logger.error("Already distributed")
return False
def deploy_token_contracts(
logger: Logger, dbsession: Session, network: str,
ethereum_node_url: Union[str, Web3], ethereum_abi_file: Optional[str],
ethereum_private_key: Optional[str], ethereum_gas_limit: Optional[int],
ethereum_gas_price: Optional[int], name: str, symbol: str, amount: int,
transfer_restriction: str):
"""Issue out a new Ethereum token."""
assert type(amount) == int
decimals = 18 # Everything else is bad idea
check_good_private_key(ethereum_private_key)
abi = get_abi(ethereum_abi_file)
web3 = create_web3(ethereum_node_url)
# We do not have anything else implemented yet
assert transfer_restriction == "unrestricted"
service = EthereumStoredTXService(network, dbsession, web3,
ethereum_private_key, ethereum_gas_price,
ethereum_gas_limit, BroadcastAccount,
PreparedTransaction)
logger.info("Starting creating transactions from nonce %s",
service.get_next_nonce())
# Deploy security token
note = "Deploying token contract for {}".format(name)
deploy_tx1 = service.deploy_contract("SecurityToken",
abi,
note,
constructor_args={
"_name": name,
"_symbol": symbol
}) # See SecurityToken.sol
# Deploy transfer agent
note = "Deploying unrestricted transfer policy for {}".format(name)
deploy_tx2 = service.deploy_contract("UnrestrictedTransferAgent", abi,
note)
# Set transfer agent
note = "Whitelisting deployment account for {} issuer control".format(name)
contract_address = deploy_tx1.contract_address
update_tx1 = service.interact_with_contract(
"SecurityToken", abi, contract_address, note, "addAddressToWhitelist",
{"addr": deploy_tx1.get_from()})
# Set transfer agent
note = "Making transfer restriction policy for {} effective".format(name)
contract_address = deploy_tx1.contract_address
update_tx2 = service.interact_with_contract(
"SecurityToken", abi, contract_address, note, "setTransactionVerifier",
{"newVerifier": deploy_tx2.contract_address})
# Issue out initial shares
note = "Creating {} initial shares for {}".format(amount, name)
contract_address = deploy_tx1.contract_address
amount_18 = int(amount * 10**decimals)
update_tx3 = service.interact_with_contract("SecurityToken", abi,
contract_address, note,
"issueTokens",
{"value": amount_18})
logger.info("Prepared transactions for broadcasting for network %s",
network)
logger.info("STO token contract address is %s%s%s",
colorama.Fore.LIGHTGREEN_EX, deploy_tx1.contract_address,
colorama.Fore.RESET)
return [deploy_tx1, deploy_tx2, update_tx1, update_tx2, update_tx3]
