def deploy_contract(config, contract_name, constructor_args=()):
tx = get_contract_deployed_tx(config.dbsession, contract_name)
if tx:
config.logger.error('contract already deployed at address: {}'.format(
tx.contract_address))
return
from sto.ethereum.txservice import EthereumStoredTXService
from sto.models.implementation import BroadcastAccount, PreparedTransaction
assert is_ethereum_network(config.network)
check_good_private_key(config.ethereum_private_key)
abi = get_abi(config.ethereum_abi_file)
for dependency in abi[contract_name]['ordered_full_dependencies']:
deploy_contract(config, dependency, None)
abi[contract_name]['bytecode'] = _link_bytecode(
config.dbsession, abi[contract_name]['bytecode'],
abi[contract_name]['linkrefs'])
abi[contract_name]['bytecode_runtime'] = _link_bytecode(
config.dbsession,
abi[contract_name]['bytecode_runtime'],
abi[contract_name]['linkrefs_runtime'],
)
web3 = create_web3(config.ethereum_node_url)
service = EthereumStoredTXService(config.network, config.dbsession, web3,
config.ethereum_private_key,
config.ethereum_gas_price,
config.ethereum_gas_limit,
BroadcastAccount, PreparedTransaction)
note = "Deploying contract {}".format(contract_name)
service.deploy_contract(contract_name=contract_name,
abi=abi,
note=note,
constructor_args=constructor_args)
# Write database
dbsession = config.dbsession
dbsession.commit()
# deploy on ethereum network
broadcast(config)
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, url: 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)
# Deploy security token
note = "Deploying token contract for {}".format(name)
deploy_tx1 = service.deploy_contract("SecurityToken",
abi,
note,
constructor_args={
"_name": name,
"_symbol": symbol,
"_url": url
}) # 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 = "Making transfer restriction policy for {} effective".format(name)
contract_address = deploy_tx1.contract_address
update_tx1 = 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_tx2 = 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 will be %s%s%s",
colorama.Fore.LIGHTGREEN_EX, deploy_tx1.contract_address,
colorama.Fore.RESET)
return [deploy_tx1, deploy_tx2, update_tx1, update_tx2]