def payout_dividends(config: BoardCommmadConfiguration, transfer_amount):
from sto.ethereum.utils import (get_contract_deployed_tx, create_web3,
get_abi, broadcast as _broadcast)
from sto.ethereum.txservice import EthereumStoredTXService
from sto.models.implementation import BroadcastAccount, PreparedTransaction
tx = get_contract_deployed_tx(config.dbsession, 'PayoutContract')
if not tx:
raise Exception(
'PayoutContract not found. Call payout-deploy to deploy PayoutContract'
)
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)
abi = get_abi(config.ethereum_abi_file)
service.interact_with_contract(
contract_name='PayoutContract',
abi=abi,
address=tx.contract_address,
note='transferring amount: {0}'.format(transfer_amount),
func_name='act',
args={'amount': transfer_amount})
_broadcast(config)
def payout_deposit(config: BoardCommmadConfiguration):
"""
the private key here needs to belong to the customer who wants to fetch tokens
"""
from sto.ethereum.utils import (get_contract_deployed_tx, create_web3,
get_abi, broadcast as _broadcast)
from sto.ethereum.txservice import EthereumStoredTXService
from sto.models.implementation import BroadcastAccount, PreparedTransaction
tx = get_contract_deployed_tx(config.dbsession, 'PayoutContract')
if not tx:
raise Exception(
'PayoutContract not found. Call payout-deploy to deploy PayoutContract'
)
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)
abi = get_abi(config.ethereum_abi_file)
service.interact_with_contract(contract_name='PayoutContract',
abi=abi,
address=tx.contract_address,
note='calling fetchTokens',
func_name='fetchTokens',
args={})
_broadcast(config)
def whitelist_kyc_address(config, address):
from sto.ethereum.txservice import EthereumStoredTXService
from sto.models.implementation import BroadcastAccount, PreparedTransaction
tx = get_contract_deployed_tx(config.dbsession, 'BasicKYC')
if not tx:
raise Exception(
'BasicKyc contract is not deployed. '
'invoke command kyc_deploy to deploy the smart contract')
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)
abi = get_abi(config.ethereum_abi_file)
service.interact_with_contract(
contract_name='BasicKYC',
abi=abi,
address=tx.contract_address,
note='whitelisting address {0}'.format(address),
func_name='whitelistUser',
args={
'who': address,
'status': True
})
broadcast(config)
def payout_approve(
config: BoardCommmadConfiguration,
payout_token_address: str,
payout_token_name: str,
):
"""
approve tokens to the payout contract
"""
from sto.ethereum.utils import (get_contract_deployed_tx, create_web3,
get_abi, broadcast as _broadcast,
priv_key_to_address)
from sto.ethereum.txservice import EthereumStoredTXService
from sto.models.implementation import BroadcastAccount, PreparedTransaction
tx = get_contract_deployed_tx(config.dbsession, 'PayoutContract')
if not tx:
raise Exception(
'PayoutContract not found. Call payout-deploy to deploy PayoutContract'
)
if payout_token_name:
tx = get_contract_deployed_tx(config.dbsession, payout_token_name)
payout_token_address = tx.contract_address
if payout_token_address is None:
raise Exception('''
Either payout token is not deployed or --payout-token-address not provided
''')
tx = get_contract_deployed_tx(config.dbsession, 'PayoutContract')
if not tx:
raise Exception(
'PayoutContract not found. Call payout-deploy to deploy PayoutContract'
)
payout_contract_address = tx.contract_address
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)
abi = get_abi(config.ethereum_abi_file)
payout_token_contract = web3.eth.contract(
address=payout_token_address, abi=abi[payout_token_name]['abi'])
service.interact_with_contract(
payout_token_name,
abi,
payout_token_address,
'approving tokens',
'approve',
args={
'_spender':
payout_contract_address,
'_value':
payout_token_contract.functions.balanceOf(
priv_key_to_address(config.ethereum_private_key)).call()
},
use_bytecode=False)
_broadcast(config)
def _execute(config, contract_name, contract_function_name, args):
from sto.ethereum.txservice import EthereumStoredTXService
from sto.models.implementation import BroadcastAccount, PreparedTransaction
from sto.ethereum.utils import broadcast
service = EthereumStoredTXService(
config.network, config.dbsession, web3,
config.ethereum_private_key, config.ethereum_gas_price,
config.ethereum_gas_limit, BroadcastAccount,
PreparedTransaction)
abi = get_abi(None)
tx = get_contract_deployed_tx(dbsession, contract_name)
service.interact_with_contract(contract_name, abi,
tx.contract_address, '',
contract_function_name, args)
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]