def _mainnet(self) -> _Web3:
# a web3 instance connected to the mainnet
if CONFIG["active_network"]["name"] == "mainnet":
return self
if "mainnet" not in CONFIG["network"]["networks"]:
raise MainnetUndefined("No 'mainnet' network defined in brownie-config.json")
if not self._mainnet_w3:
uri = _expand_environment_vars(CONFIG["network"]["networks"]["mainnet"]["host"])
self._mainnet_w3 = _Web3(HTTPProvider(uri))
self._mainnet_w3.enable_unstable_package_management_api()
return self._mainnet_w3
def _mainnet(self) -> _Web3:
# a web3 instance connected to the mainnet
if self.isConnected() and CONFIG.active_network["id"] == "mainnet":
return self
try:
mainnet = CONFIG.networks["mainnet"]
except KeyError:
raise MainnetUndefined("No 'mainnet' network defined") from None
if not self._mainnet_w3:
uri = _expand_environment_vars(mainnet["host"])
self._mainnet_w3 = _Web3(HTTPProvider(uri))
self._mainnet_w3.enable_unstable_package_management_api()
return self._mainnet_w3
def _resolve_address(address: str) -> str:
if not isinstance(address, str) or "." not in address:
return to_address(address)
address = address.lower()
if address not in _ens_cache:
try:
ns = ENS.fromWeb3(web3._mainnet)
except MainnetUndefined as e:
raise MainnetUndefined(
f"Cannot resolve ENS address - {e}") from None
resolved_address = ns.address(address)
_ens_cache[address] = resolved_address
if _ens_cache[address] is None:
raise UnsetENSName(f"ENS address '{address}' is not set")
return _ens_cache[address]
def _resolve_address(domain: str) -> str:
# convert ENS domain to address
if not isinstance(domain, str) or "." not in domain:
return to_address(domain)
domain = domain.lower()
if domain not in _ens_cache or time.time() - _ens_cache[domain][1] > 86400:
try:
ns = ENS.fromWeb3(web3._mainnet)
except MainnetUndefined as e:
raise MainnetUndefined(f"Cannot resolve ENS address - {e}") from None
address = ns.address(domain)
_ens_cache[domain] = [address, int(time.time())]
with _get_path().open("w") as fp:
json.dump(_ens_cache, fp)
if _ens_cache[domain][0] is None:
raise UnsetENSName(f"ENS domain '{domain}' is not set")
return _ens_cache[domain][0]