def _run_launch(self, **kw):
configuration_file_name = kw.get("configuration_file_name")
configuration_file = RaidenConfigurationFile.get_by_filename(
configuration_file_name)
network_name = configuration_file.network.name
raiden_client = RaidenClient.get_client(network_name)
required = RequiredAmounts.for_network(network_name)
if not raiden_client.is_installed:
self._send_status_update(
f"Downloading and installing raiden {raiden_client.release}")
raiden_client.install()
self._send_status_update("Installation complete")
account = configuration_file.account
w3 = make_web3_provider(
configuration_file.ethereum_client_rpc_endpoint, account)
service_token = Erc20Token.find_by_ticker(
required.service_token.ticker, network_name)
service_token_balance = get_token_balance(w3=w3,
account=account,
token=service_token)
service_token_in_deposit = get_token_deposit(w3=w3,
account=account,
token=service_token)
if service_token_balance.as_wei and service_token_in_deposit < required.service_token:
self._send_status_update(
f"Making deposit of {service_token_balance.formatted} for Raiden Services"
)
deposit_service_tokens(w3=w3,
account=account,
token=service_token,
amount=service_token_balance.as_wei)
service_token_deposited = get_token_deposit(w3=w3,
account=account,
token=service_token)
self._send_status_update(
f"Amount deposited at UDC: {service_token_deposited.formatted}"
)
self._send_status_update(
"Launching Raiden, this might take a couple of minutes, do not close the browser"
)
if not raiden_client.is_running:
raiden_client.launch(configuration_file)
try:
raiden_client.wait_for_web_ui_ready(
status_callback=lambda stat: log.info(str(stat)))
self._send_task_complete("Raiden is ready!")
self._send_redirect(raiden_client.WEB_UI_INDEX_URL)
except (RaidenClientError, RuntimeError) as exc:
self._send_error_message(f"Raiden process failed to start: {exc}")
raiden_client.kill()
def _run_launch(self, **kw):
configuration_file_name = kw.get("configuration_file_name")
configuration_file = RaidenConfigurationFile.get_by_filename(
configuration_file_name)
if not RAIDEN_CLIENT.is_installed:
self._send_status_update(
f"Downloading and installing raiden {RAIDEN_CLIENT.release}")
RAIDEN_CLIENT.install()
self._send_status_update("Installation complete")
account = configuration_file.account
w3 = make_web3_provider(
configuration_file.ethereum_client_rpc_endpoint, account)
service_token = Erc20Token.find_by_ticker(
settings.service_token.ticker)
service_token_balance = get_token_balance(w3=w3,
account=account,
token=service_token)
service_token_in_deposit = get_token_deposit(w3=w3,
account=account,
token=service_token)
if service_token_balance.as_wei and service_token_in_deposit < SERVICE_TOKEN_REQUIRED:
self._send_status_update(
f"Making deposit of {service_token_balance.formatted} for Raiden Services"
)
deposit_service_tokens(w3=w3,
account=account,
token=service_token,
amount=service_token_balance.as_wei)
service_token_deposited = get_token_deposit(w3=w3,
account=account,
token=service_token)
self._send_status_update(
f"Amount deposited at UDC: {service_token_deposited.formatted}"
)
self._send_status_update(
"Launching Raiden, this might take a couple of minutes, do not close the browser"
)
if not RAIDEN_CLIENT.is_running:
RAIDEN_CLIENT.launch(configuration_file)
try:
RAIDEN_CLIENT.wait_for_web_ui_ready()
self._send_task_complete("Raiden is ready!")
self._send_redirect(RAIDEN_CLIENT.WEB_UI_INDEX_URL)
except (RaidenClientError, RuntimeError) as exc:
self._send_error_message(f"Raiden process failed to start: {exc}")
RAIDEN_CLIENT.kill()
def check_balances(w3, account, settings, check_func):
balance = account.get_ethereum_balance(w3)
service_token = Erc20Token.find_by_ticker(settings.service_token.ticker,
settings.network)
udc_balance = get_token_deposit(w3, account, service_token)
transfer_token = Erc20Token.find_by_ticker(settings.transfer_token.ticker,
settings.network)
transfer_token_balance = get_token_balance(w3, account, transfer_token)
return (check_func(balance.as_wei) and check_func(udc_balance.as_wei)
and check_func(transfer_token_balance.as_wei))
def test_udc_deposit(self):
self.network.fund(self.account)
self.account.wait_for_ethereum_funds(self.w3, EthereumAmount(0.01))
tx_hash = mint_tokens(self.w3, self.account, self.svt_token)
wait_for_transaction(self.w3, tx_hash)
amount = get_token_balance(self.w3, self.account, self.svt_token)
tx_hash = deposit_service_tokens(self.w3, self.account, self.svt_token,
amount.as_wei)
wait_for_transaction(self.w3, tx_hash)
deposited = get_token_deposit(self.w3, self.account, self.svt_token)
self.assertEqual(deposited, amount)
def _run_udc_deposit(self, **kw):
try:
configuration_file_name = kw.get("configuration_file_name")
configuration_file = RaidenConfigurationFile.get_by_filename(
configuration_file_name)
except (ValueError, KeyError, TypeError) as exc:
self._send_error_message(f"Invalid request: {exc}")
return
try:
settings = self.installer_settings
required = RequiredAmounts.from_settings(settings)
swap_amounts = SwapAmounts.from_settings(settings)
service_token = Erc20Token.find_by_ticker(
required.service_token.ticker, settings.network)
account = configuration_file.account
try_unlock(account)
w3 = make_web3_provider(
configuration_file.ethereum_client_rpc_endpoint, account)
service_token_balance = get_token_balance(w3, account,
service_token)
service_token_deposited = get_token_deposit(
w3, account, service_token)
if service_token_deposited < required.service_token:
swap_amount = swap_amounts.service_token
if service_token_balance >= swap_amount:
deposit = swap_amount - service_token_deposited
else:
deposit = service_token_balance
self._deposit_to_udc(w3, account, service_token, deposit)
else:
self._send_status_update(
f"Service token deposited at UDC: {service_token_deposited.formatted} is enough"
)
time.sleep(5)
transfer_token = Erc20Token.find_by_ticker(
required.transfer_token.ticker, settings.network)
transfer_token_balance = get_token_balance(w3, account,
transfer_token)
self._redirect_transfer_swap(configuration_file,
transfer_token_balance, required)
except (json.decoder.JSONDecodeError, KeyError, ExchangeError,
ValueError) as exc:
self._redirect_after_swap_error(exc, configuration_file.file_name,
service_token.ticker)
def _deposit_to_udc(self, w3, account, service_token, deposit_amount):
self._send_status_update(
f"Making deposit of {deposit_amount.formatted} to the "
"User Deposit Contract")
self._send_status_update(f"This might take a few minutes")
tx_hash = deposit_service_tokens(
w3=w3,
account=account,
token=service_token,
amount=deposit_amount.as_wei,
)
wait_for_transaction(w3, tx_hash)
service_token_deposited = get_token_deposit(w3=w3,
account=account,
token=service_token)
self._send_status_update(
f"Total amount deposited at UDC: {service_token_deposited.formatted}"
)
def _run_swap(self, **kw):
try:
configuration_file_name = kw.get("configuration_file_name")
exchange_name = kw["exchange"]
token_amount = kw["amount"]
token_ticker = kw["token"]
except (ValueError, KeyError, TypeError) as exc:
self._send_error_message(f"Invalid request: {exc}")
return
try:
configuration_file = RaidenConfigurationFile.get_by_filename(
configuration_file_name)
network_name = configuration_file.network.name
form = TokenExchangeForm({
"network": [network_name],
"exchange": [exchange_name],
"token_amount": [token_amount],
"token_ticker": [token_ticker],
})
if form.validate():
account = configuration_file.account
try_unlock(account)
w3 = make_web3_provider(
configuration_file.ethereum_client_rpc_endpoint, account)
token = Erc20Token.find_by_ticker(form.data["token_ticker"],
network_name)
token_amount = TokenAmount(Wei(form.data["token_amount"]),
token)
exchange = Exchange.get_by_name(form.data["exchange"])(w3=w3)
self._send_status_update(f"Starting swap at {exchange.name}")
costs = exchange.calculate_transaction_costs(
token_amount, account)
needed_funds = costs["total"]
exchange_rate = costs["exchange_rate"]
balance_before_swap = account.get_ethereum_balance(w3)
if needed_funds > balance_before_swap:
raise ValueError((
f"Not enough ETH. {balance_before_swap.formatted} available, but "
f"{needed_funds.formatted} needed"))
self._send_status_update(
(f"Best exchange rate found at {exchange.name}: "
f"{exchange_rate} / {token_amount.ticker}"))
self._send_status_update(
f"Trying to acquire {token_amount} at this rate")
transaction_receipt = exchange.buy_tokens(
account, token_amount, costs)
wait_for_transaction(w3, transaction_receipt)
token_balance = get_token_balance(w3, account, token)
balance_after_swap = account.get_ethereum_balance(w3)
actual_total_costs = balance_before_swap - balance_after_swap
self._send_status_update(
f"Swap complete. {token_balance.formatted} available")
self._send_status_update(f"Actual costs: {actual_total_costs}")
required = RequiredAmounts.for_network(network_name)
service_token = Erc20Token.find_by_ticker(
required.service_token.ticker, network_name)
service_token_balance = get_token_balance(
w3, account, service_token)
total_service_token_balance = get_total_token_owned(
w3, account, service_token)
transfer_token = Erc20Token.find_by_ticker(
required.transfer_token.ticker, network_name)
transfer_token_balance = get_token_balance(
w3, account, transfer_token)
if total_service_token_balance < required.service_token:
raise ExchangeError("Exchange was not successful")
elif service_token_balance.as_wei > 0:
self._send_status_update(
f"Making deposit of {service_token_balance.formatted} to the User Deposit Contract"
)
self._send_status_update(f"This might take a few minutes")
transaction_receipt = deposit_service_tokens(
w3=w3,
account=account,
token=service_token,
amount=service_token_balance.as_wei,
)
wait_for_transaction(w3, transaction_receipt)
service_token_deposited = get_token_deposit(
w3=w3, account=account, token=service_token)
self._send_status_update(
f"Total amount deposited at UDC: {service_token_deposited.formatted}"
)
if transfer_token_balance < required.transfer_token:
redirect_url = self.reverse_url(
"swap", configuration_file.file_name,
transfer_token.ticker)
next_page = "Moving on to exchanging DAI ..."
else:
redirect_url = self.reverse_url(
"launch", configuration_file.file_name)
next_page = "You are ready to launch Raiden! ..."
self._send_summary(
["Congratulations! Swap Successful!", next_page],
icon=token_ticker)
time.sleep(5)
self._send_redirect(redirect_url)
else:
for key, error_list in form.errors.items():
error_message = f"{key}: {'/'.join(error_list)}"
self._send_error_message(error_message)
except (json.decoder.JSONDecodeError, KeyError, ExchangeError,
ValueError) as exc:
self._send_error_message(str(exc))
redirect_url = self.reverse_url("swap",
configuration_file.file_name,
token_ticker)
next_page = f"Try again to exchange {token_ticker}..."
self._send_summary(["Transaction failed",
str(exc), next_page],
icon="error")
time.sleep(5)
self._send_redirect(redirect_url)
