def _assign_ens(self):
'''
Updates ENS entries
'''
# prepare domain
ens_domain = self._ens_name
node = ENS.namehash(ens_domain)
# connect to registry and resolver
ens_registry = ContractConnection("ens_registry", self.app_config)
ens_resolver = ContractConnection("ens_resolver", self.app_config)
# set resolver
curr_resolver = ens_registry.functions.call("resolver", node)
if curr_resolver == "0x0000000000000000000000000000000000000000":
resolver_address = ContractConnection.get_ens_address(self.app_config.chain, "ens_resolver")
ens_registry.functions.transact("setResolver", node, resolver_address)
else:
logging.info("Resolver already set for %s", ens_domain)
# set ABI
ens_resolver.functions.transact("setABI", node, 1, json.dumps(self.abi).encode())
# set address
self.contr_address = self._w3.toChecksumAddress(self.contr_address)
ens_resolver.functions.transact("setAddr", node, self.contr_address)
ens_resolver.functions.transact("setName", node, ens_domain)
# get data for output
addr = ens_resolver.functions.call("addr", node)
name = ens_resolver.functions.call("name", node)
logging.info("SUCCESS – Set contract with address %s to name %s", addr, name)
def _security_check(self):
'''
Makes sure that an existing contract does not get overwritten unintensionally
'''
# connect to public resolver
ens_resolver = ContractConnection("ens_resolver", self.app_config)
node = ENS.namehash(self._ens_name)
temp = ens_resolver.functions.call("addr", node)
# check if ens address is already linked to a contract and potential overwriting intended
if temp != "0x0000000000000000000000000000000000000000" and self.app_config.overwrite_ens_link is not True:
logging.error("A smart Contract already deployed on this domain and overwrite_ens_link is not True.")
exit("Stopping process.")
def get_node(self, ens_name):
return ENS.namehash(ens_name)
