def bootstrap_network(
cls,
economics: BaseEconomics = None
) -> Tuple['TesterBlockchain', 'InMemoryContractRegistry']:
"""For use with metric testing scripts"""
registry = InMemoryContractRegistry()
testerchain = cls(compiler=SolidityCompiler())
BlockchainInterfaceFactory.register_interface(testerchain)
power = TransactingPower(password=INSECURE_DEVELOPMENT_PASSWORD,
account=testerchain.etherbase_account)
power.activate()
testerchain.transacting_power = power
origin = testerchain.client.etherbase
deployer = ContractAdministrator(deployer_address=origin,
registry=registry,
economics=economics
or cls._default_token_economics,
staking_escrow_test_mode=True)
secrets = dict()
for deployer_class in deployer.upgradeable_deployer_classes:
secrets[
deployer_class.contract_name] = INSECURE_DEVELOPMENT_PASSWORD
_receipts = deployer.deploy_network_contracts(secrets=secrets,
interactive=False)
return testerchain, registry
def get_registry(self, emitter, debug):
try:
eth_node = None
if self.geth:
eth_node = get_provider_process()
# Note: For test compatibility.
if not BlockchainInterfaceFactory.is_interface_initialized(
provider_uri=self.provider_uri):
BlockchainInterfaceFactory.initialize_interface(
provider_uri=self.provider_uri,
provider_process=eth_node,
poa=self.poa,
light=self.light,
sync=False,
emitter=emitter)
blockchain = BlockchainInterfaceFactory.get_interface(
provider_uri=self.provider_uri)
emitter.echo(message="Reading Latest Chaindata...")
blockchain.connect()
except Exception as e:
if debug:
raise
click.secho(str(e), bold=True, fg='red')
raise click.Abort
if self.registry_filepath:
registry = LocalContractRegistry(filepath=self.registry_filepath)
else:
registry = InMemoryContractRegistry.from_latest_publication(
network=self.network)
return registry
def bootstrap_network(
cls,
registry: Optional[BaseContractRegistry] = None,
economics: Economics = None
) -> Tuple['TesterBlockchain', 'InMemoryContractRegistry']:
"""For use with metric testing scripts"""
# Provider connection
if registry is None:
registry = InMemoryContractRegistry()
testerchain = cls()
if not BlockchainInterfaceFactory.is_interface_initialized(
eth_provider_uri=testerchain.eth_provider_uri):
BlockchainInterfaceFactory.register_interface(
interface=testerchain)
# Produce actor
deployer_power = TransactingPower(
signer=Web3Signer(testerchain.client),
account=testerchain.etherbase_account)
admin = ContractAdministrator(registry=registry,
domain=TEMPORARY_DOMAIN,
transacting_power=deployer_power,
economics=economics
or cls.DEFAULT_ECONOMICS)
gas_limit = None # TODO: Gas management - #842
for deployer_class in admin.primary_deployer_classes:
admin.deploy_contract(contract_name=deployer_class.contract_name,
gas_limit=gas_limit)
return testerchain, registry
def connect_blockchain(self, emitter, debug):
try:
eth_node = None
if self.geth:
eth_node = get_provider_process()
# Note: For test compatibility.
if not BlockchainInterfaceFactory.is_interface_initialized(
provider_uri=self.provider_uri):
BlockchainInterfaceFactory.initialize_interface(
provider_uri=self.provider_uri,
provider_process=eth_node,
poa=self.poa,
light=self.light,
sync=False,
emitter=emitter)
blockchain = BlockchainInterfaceFactory.get_interface(
provider_uri=self.provider_uri)
emitter.echo(message="Reading Latest Chaindata...")
blockchain.connect()
return blockchain
except Exception as e:
if debug:
raise
click.secho(str(e), bold=True, fg='red')
raise click.Abort
def _get_staking_agent(click_config, emitter, geth, poa, provider_uri,
registry_filepath):
try:
ETH_NODE = None
if geth:
ETH_NODE = get_provider_process()
# Note: For test compatibility.
if not BlockchainInterfaceFactory.is_interface_initialized(
provider_uri=provider_uri):
BlockchainInterfaceFactory.initialize_interface(
provider_uri=provider_uri,
provider_process=ETH_NODE,
poa=poa,
sync=False,
show_sync_progress=False)
blockchain = BlockchainInterfaceFactory.get_interface(
provider_uri=provider_uri)
emitter.echo(message="Reading Latest Chaindata...")
blockchain.connect()
except Exception as e:
if click_config.debug:
raise
click.secho(str(e), bold=True, fg='red')
raise click.Abort
if registry_filepath:
registry = LocalContractRegistry(filepath=registry_filepath)
else:
registry = InMemoryContractRegistry.from_latest_publication()
staking_agent = ContractAgency.get_agent(StakingEscrowAgent,
registry=registry)
return staking_agent
def _make_testerchain():
"""
https://github.com/ethereum/eth-tester # available-backends
"""
# Monkey patch to prevent gas adjustment
import eth
eth._utils.headers.GAS_LIMIT_MINIMUM = TEST_GAS_LIMIT
eth._utils.headers.GENESIS_GAS_LIMIT = TEST_GAS_LIMIT
eth.vm.forks.frontier.headers.GENESIS_GAS_LIMIT = TEST_GAS_LIMIT
# Monkey patch to prevent gas estimates
def _get_buffered_gas_estimate(web3, transaction, gas_buffer=100000):
return TEST_GAS_LIMIT
import web3
web3.eth.get_buffered_gas_estimate = _get_buffered_gas_estimate
# Create the blockchain
testerchain = TesterBlockchain(eth_airdrop=True, free_transactions=True)
BlockchainInterfaceFactory.register_interface(interface=testerchain)
# Mock TransactingPower Consumption (Deployer)
testerchain.transacting_power = TransactingPower(
password=INSECURE_DEVELOPMENT_PASSWORD,
account=testerchain.etherbase_account)
testerchain.transacting_power.activate()
return testerchain
def test_geth_deployment_integration(instant_geth_dev_node, test_registry):
# TODO: Move to decorator
if 'CIRCLECI' in os.environ:
pytest.skip("Do not run Geth nodes in CI")
blockchain = BlockchainDeployerInterface(
provider_process=instant_geth_dev_node)
BlockchainInterfaceFactory.register_interface(interface=blockchain)
# Make Deployer
etherbase = to_checksum_address(instant_geth_dev_node.accounts[0].decode(
)) # TODO: Make property on nucypher geth node instances?
administrator = ContractAdministrator(
registry=test_registry,
deployer_address=etherbase,
client_password=None) # dev accounts have no password.
assert int(blockchain.client.chain_id) == 1337
# Deploy
secrets = dict()
for deployer_class in administrator.upgradeable_deployer_classes:
secrets[deployer_class.contract_name] = INSECURE_DEVELOPMENT_PASSWORD
administrator.deploy_network_contracts(secrets=secrets, interactive=False)
def testerchain(_testerchain) -> TesterBlockchain:
testerchain = _testerchain
# Reset chain state
pyevm_backend = testerchain.provider.ethereum_tester.backend
snapshot = pyevm_backend.chain.get_canonical_block_by_number(0).hash
pyevm_backend.revert_to_snapshot(snapshot)
coinbase, *addresses = testerchain.client.accounts
for address in addresses:
balance = testerchain.client.get_balance(address)
spent = DEVELOPMENT_ETH_AIRDROP_AMOUNT - balance
if spent > 0:
tx = {'to': address, 'from': coinbase, 'value': spent}
txhash = testerchain.w3.eth.sendTransaction(tx)
_receipt = testerchain.wait_for_receipt(txhash)
eth_amount = Web3().fromWei(spent, 'ether')
testerchain.log.info("Airdropped {} ETH {} -> {}".format(
eth_amount, tx['from'], tx['to']))
BlockchainInterfaceFactory.register_interface(interface=testerchain,
force=True)
yield testerchain
def _get_registry(provider_uri, registry_filepath):
BlockchainInterfaceFactory.initialize_interface(provider_uri=provider_uri)
if registry_filepath:
registry = LocalContractRegistry.from_latest_publication()
else:
registry = InMemoryContractRegistry.from_latest_publication()
return registry
def crawl(
general_config,
teacher_uri,
registry_filepath,
min_stake,
network,
learn_on_launch,
provider_uri,
influx_host,
influx_port,
http_port,
dry_run,
eager,
poa,
):
"""
Gather NuCypher network information.
"""
# Banner
emitter = general_config.emitter
emitter.clear()
emitter.banner(MONITOR_BANNER.format(CRAWLER))
# Setup
BlockchainInterfaceFactory.initialize_interface(provider_uri=provider_uri,
poa=poa)
registry = _get_registry(registry_filepath, network)
middleware = RestMiddleware()
# Teacher Ursula
sage_node = None
if teacher_uri:
sage_node = Ursula.from_teacher_uri(
teacher_uri=teacher_uri,
min_stake=0, # TODO: Where to get this?
federated_only=False, # always False
network_middleware=middleware,
registry=registry)
crawler = Crawler(domain=network if network else None,
network_middleware=middleware,
known_nodes=[sage_node] if teacher_uri else None,
registry=registry,
start_learning_now=eager,
learn_on_same_thread=learn_on_launch,
influx_host=influx_host,
influx_port=influx_port)
emitter.message(f"Network: {network.capitalize()}", color='blue')
emitter.message(f"InfluxDB: {influx_host}:{influx_port}", color='blue')
emitter.message(f"Provider: {provider_uri}", color='blue')
emitter.message(f"Refresh Rate: {crawler._refresh_rate}s", color='blue')
message = f"Running Nucypher Crawler JSON endpoint at http://localhost:{http_port}/stats"
emitter.message(message, color='green', bold=True)
if not dry_run:
crawler.start(eager=eager)
reactor.run()
def select_client_account(emitter,
provider_uri: str,
prompt: str = None,
default: int = 0,
registry=None,
show_balances: bool = True,
network: str = None) -> str:
"""
Note: Setting show_balances to True, causes an eager contract and blockchain connection.
"""
if not provider_uri:
raise ValueError(
"Provider URI must be provided to select a wallet account.")
# Lazy connect the blockchain interface
if not BlockchainInterfaceFactory.is_interface_initialized(
provider_uri=provider_uri):
BlockchainInterfaceFactory.initialize_interface(
provider_uri=provider_uri, emitter=emitter)
blockchain = BlockchainInterfaceFactory.get_interface(
provider_uri=provider_uri)
# Lazy connect to contracts
token_agent = None
if show_balances:
if not registry:
registry = InMemoryContractRegistry.from_latest_publication(
network)
token_agent = NucypherTokenAgent(registry=registry)
# Real wallet accounts
enumerated_accounts = dict(enumerate(blockchain.client.accounts))
if len(enumerated_accounts) < 1:
emitter.echo("No ETH accounts were found.", color='red', bold=True)
raise click.Abort()
# Display account info
header = f'| # | Account ---------------------------------- | Balance -----' \
f'\n================================================================='
emitter.echo(header)
for index, account in enumerated_accounts.items():
message = f"| {index} | {account} "
if show_balances:
message += f" | {NU.from_nunits(token_agent.get_balance(address=account))}"
emitter.echo(message)
# Prompt the user for selection, and return
prompt = prompt or "Select Account"
account_range = click.IntRange(min=0, max=len(enumerated_accounts) - 1)
choice = click.prompt(prompt, type=account_range, default=default)
chosen_account = enumerated_accounts[choice]
emitter.echo(f"Selected {choice}:{chosen_account}", color='blue')
return chosen_account
def test_upgradeability(temp_dir_path):
# Prepare remote source for compilation
download_github_dir(GITHUB_SOURCE_LINK, temp_dir_path)
solidity_compiler = SolidityCompiler(source_dirs=[SourceDirs(SolidityCompiler.default_contract_dir()),
SourceDirs(temp_dir_path)])
# Prepare the blockchain
provider_uri = 'tester://pyevm/2'
try:
blockchain_interface = BlockchainDeployerInterface(provider_uri=provider_uri,
compiler=solidity_compiler,
gas_strategy=free_gas_price_strategy)
blockchain_interface.connect()
origin = blockchain_interface.client.accounts[0]
BlockchainInterfaceFactory.register_interface(interface=blockchain_interface)
blockchain_interface.transacting_power = TransactingPower(password=INSECURE_DEVELOPMENT_PASSWORD, account=origin)
blockchain_interface.transacting_power.activate()
# Check contracts with multiple versions
raw_contracts = blockchain_interface._raw_contract_cache
contract_name = AdjudicatorDeployer.contract_name
test_adjudicator = len(raw_contracts[contract_name]) > 1
contract_name = StakingEscrowDeployer.contract_name
test_staking_escrow = len(raw_contracts[contract_name]) > 1
contract_name = PolicyManagerDeployer.contract_name
test_policy_manager = len(raw_contracts[contract_name]) > 1
if not test_adjudicator and not test_staking_escrow and not test_policy_manager:
return
# Prepare master version of contracts and upgrade to the latest
registry = InMemoryContractRegistry()
token_deployer = NucypherTokenDeployer(registry=registry, deployer_address=origin)
token_deployer.deploy()
staking_escrow_deployer = StakingEscrowDeployer(registry=registry, deployer_address=origin)
deploy_earliest_contract(blockchain_interface, staking_escrow_deployer)
if test_staking_escrow:
staking_escrow_deployer.upgrade(contract_version="latest", confirmations=0)
if test_policy_manager:
policy_manager_deployer = PolicyManagerDeployer(registry=registry, deployer_address=origin)
deploy_earliest_contract(blockchain_interface, policy_manager_deployer)
policy_manager_deployer.upgrade(contract_version="latest", confirmations=0)
if test_adjudicator:
adjudicator_deployer = AdjudicatorDeployer(registry=registry, deployer_address=origin)
deploy_earliest_contract(blockchain_interface, adjudicator_deployer)
adjudicator_deployer.upgrade(contract_version="latest", confirmations=0)
finally:
# Unregister interface
with contextlib.suppress(KeyError):
del BlockchainInterfaceFactory._interfaces[provider_uri]
def _initialize_blockchain(poa, provider_uri, emitter):
if not BlockchainInterfaceFactory.is_interface_initialized(provider_uri=provider_uri):
# Note: For test compatibility.
deployer_interface = BlockchainDeployerInterface(provider_uri=provider_uri, poa=poa)
BlockchainInterfaceFactory.register_interface(interface=deployer_interface, sync=False,
emitter=emitter)
else:
deployer_interface = BlockchainInterfaceFactory.get_interface(provider_uri=provider_uri)
deployer_interface.connect()
return deployer_interface
def connect_web3_provider(provider_uri: str) -> None:
"""
Convenience function for connecting to an ethereum provider now.
This may be used to optimize the startup time of some applications by
establishing the connection eagarly.
"""
from nucypher.blockchain.eth.interfaces import BlockchainInterfaceFactory
if not BlockchainInterfaceFactory.is_interface_initialized(
provider_uri=provider_uri):
BlockchainInterfaceFactory.initialize_interface(
provider_uri=provider_uri)
interface = BlockchainInterfaceFactory.get_interface(
provider_uri=provider_uri)
interface.connect()
def token_economics(testerchain):
# Get current blocktime
blockchain = BlockchainInterfaceFactory.get_interface(
provider_uri=testerchain.provider_uri)
now = blockchain.w3.eth.getBlock(block_identifier='latest').timestamp
# Calculate instant start time
one_hour_in_seconds = (60 * 60)
start_date = now
bidding_start_date = start_date
# Ends in one hour
bidding_end_date = start_date + one_hour_in_seconds
cancellation_end_date = bidding_end_date + one_hour_in_seconds
economics = StandardTokenEconomics(
worklock_boosting_refund_rate=200,
worklock_commitment_duration=60, # periods
worklock_supply=10 * BaseEconomics._default_maximum_allowed_locked,
bidding_start_date=bidding_start_date,
bidding_end_date=bidding_end_date,
cancellation_end_date=cancellation_end_date,
worklock_min_allowed_bid=Web3.toWei(1, "ether"))
return economics
def _initialize_blockchain(poa, provider_uri, emitter, ignore_solidity_check, gas_strategy=None):
if not BlockchainInterfaceFactory.is_interface_initialized(provider_uri=provider_uri):
# Note: For test compatibility.
deployer_interface = BlockchainDeployerInterface(provider_uri=provider_uri,
poa=poa,
ignore_solidity_check=ignore_solidity_check,
gas_strategy=gas_strategy)
BlockchainInterfaceFactory.register_interface(interface=deployer_interface,
sync=False,
emitter=emitter)
else:
deployer_interface = BlockchainInterfaceFactory.get_interface(provider_uri=provider_uri)
deployer_interface.connect()
return deployer_interface
def paint_contract_status(registry, emitter):
blockchain = BlockchainInterfaceFactory.get_interface()
application_agent = ContractAgency.get_agent(PREApplicationAgent,
registry=registry)
contracts = f"""
| Contract Deployments |
{application_agent.contract_name} .............. {application_agent.contract_address}
"""
blockchain = f"""
| '{blockchain.client.chain_name}' Blockchain Network |
Gas Price ................ {Web3.fromWei(blockchain.client.gas_price, 'gwei')} Gwei
ETH Provider URI ......... {blockchain.eth_provider_uri}
Registry ................. {registry.filepath}
"""
staking = f"""
| PREApplication |
Staking Provider Population ....... {application_agent.get_staking_providers_population()}
"""
sep = '-' * 45
emitter.echo(sep)
emitter.echo(contracts)
emitter.echo(sep)
emitter.echo(blockchain)
emitter.echo(sep)
emitter.echo(staking)
emitter.echo(sep)
def __init__(self,
account: str,
provider_uri: str = None,
password: str = None,
cache: bool = False,):
"""
Instantiates a TransactingPower for the given checksum_address.
"""
self.blockchain = BlockchainInterfaceFactory.get_or_create_interface(provider_uri=provider_uri)
self.__account = account
# TODO: Temporary fix for #1128 and #1385. It's ugly af, but it works. Move somewhere else?
try:
wallets = self.blockchain.client.wallets
except AttributeError:
is_from_hw_wallet = False
else:
HW_WALLET_URL_PREFIXES = ('trezor', 'ledger')
hw_accounts = [w['accounts'] for w in wallets if w['url'].startswith(HW_WALLET_URL_PREFIXES)]
hw_addresses = [to_checksum_address(account['address']) for sublist in hw_accounts for account in sublist]
is_from_hw_wallet = account in hw_addresses
self.device = is_from_hw_wallet
self.__password = password
self.__unlocked = False
self.__activated = False
self.__cache = cache
def __init__(self,
registry: BaseContractRegistry,
contract: Contract = None,
transaction_gas: int = None) -> None:
self.log = Logger(self.__class__.__name__)
self.registry = registry
# NOTE: Entry-point for multi-provider support
self.blockchain = BlockchainInterfaceFactory.get_interface()
if contract is None: # Fetch the contract
contract = self.blockchain.get_contract_by_name(
registry=self.registry,
name=self.registry_contract_name,
proxy_name=self._proxy_name,
use_proxy_address=self._forward_address)
self.__contract = contract
if not transaction_gas:
transaction_gas = EthereumContractAgent.DEFAULT_TRANSACTION_GAS_LIMITS
self.transaction_gas = transaction_gas
super().__init__()
self.log.info("Initialized new {} for {} with {} and {}".format(
self.__class__.__name__, self.contract.address,
self.blockchain.provider_uri, self.registry))
def __init__(
self,
registry:
BaseContractRegistry = None, # TODO: Consider make it non-optional again. See comment in InstanceAgent.
eth_provider_uri: Optional[str] = None,
contract: Optional[Contract] = None,
transaction_gas: Optional[Wei] = None,
contract_version: Optional[str] = None):
self.log = Logger(self.__class__.__name__)
self.registry = registry
self.blockchain = BlockchainInterfaceFactory.get_or_create_interface(
eth_provider_uri=eth_provider_uri)
if not contract: # Fetch the contract
contract = self.blockchain.get_contract_by_name(
registry=registry,
contract_name=self.contract_name,
contract_version=contract_version,
proxy_name=self._proxy_name,
use_proxy_address=self._forward_address)
self.__contract = contract
self.events = ContractEvents(contract)
if not transaction_gas:
transaction_gas = EthereumContractAgent.DEFAULT_TRANSACTION_GAS_LIMITS[
'default']
self.transaction_gas = transaction_gas
self.log.info("Initialized new {} for {} with {} and {}".format(
self.__class__.__name__, self.contract.address,
self.blockchain.eth_provider_uri, str(self.registry)))
def _create_stakeholder(config_file, provider_uri, poa, light, registry_filepath,
staking_address, beneficiary_address, allocation_filepath):
stakeholder_config = _get_stakeholder_config(config_file, provider_uri, poa, light, registry_filepath)
# Now let's check whether we're dealing here with a regular staker or a preallocation staker
is_preallocation_staker = (beneficiary_address and staking_address) or allocation_filepath
# Configure the individual allocation registry, if needed
individual_allocation = None
if is_preallocation_staker:
if allocation_filepath:
if beneficiary_address or staking_address:
message = "--allocation-filepath is incompatible with --beneficiary-address and --staking-address."
raise click.BadOptionUsage(option_name="--allocation-filepath", message=message)
# This assumes the user has an individual allocation file in disk
individual_allocation = IndividualAllocationRegistry.from_allocation_file(allocation_filepath)
elif beneficiary_address and staking_address:
individual_allocation = IndividualAllocationRegistry(beneficiary_address=beneficiary_address,
contract_address=staking_address)
else:
option = "--beneficiary_address" if beneficiary_address else "--staking-address"
raise click.BadOptionUsage(option_name=option,
message=f"You must specify both --beneficiary-address and --staking-address. "
f"Only {option} was provided. As an alternative, you can simply "
f"provide an individual allocation with --allocation-file <PATH>")
# Lazy initialization of StakeHolder
stakeholder = stakeholder_config.produce(initial_address=None,
individual_allocation=individual_allocation)
blockchain = BlockchainInterfaceFactory.get_interface(provider_uri=provider_uri) # Eager connection
return stakeholder, blockchain
def paint_receipt_summary(emitter,
receipt,
chain_name: str = None,
transaction_type=None,
provider_uri: str = None):
tx_hash = receipt['transactionHash'].hex()
emitter.echo("OK", color='green', nl=False, bold=True)
if transaction_type:
emitter.echo(f" | {transaction_type} | {tx_hash}",
color='yellow',
nl=False)
else:
emitter.echo(f" | {tx_hash}", color='yellow', nl=False)
emitter.echo(f" ({receipt['gasUsed']} gas)")
emitter.echo(
f"Block #{receipt['blockNumber']} | {receipt['blockHash'].hex()}")
if not chain_name:
blockchain = BlockchainInterfaceFactory.get_interface(
provider_uri=provider_uri)
chain_name = blockchain.client.chain_name
try:
url = etherscan_url(item=tx_hash, network=chain_name)
except ValueError as e:
emitter.log.info("Failed Etherscan URL construction: " + str(e))
else:
emitter.echo(f" See {url}\n")
def initialize_deployer_interface(emitter: StdoutEmitter,
poa: bool,
provider_uri,
ignore_solidity_check: bool,
gas_strategy: str = None,
max_gas_price: int = None
) -> BlockchainDeployerInterface:
if not BlockchainInterfaceFactory.is_interface_initialized(provider_uri=provider_uri):
deployer_interface = BlockchainDeployerInterface(provider_uri=provider_uri,
poa=poa,
gas_strategy=gas_strategy,
max_gas_price=max_gas_price)
BlockchainInterfaceFactory.register_interface(interface=deployer_interface, emitter=emitter)
else:
deployer_interface = BlockchainInterfaceFactory.get_interface(provider_uri=provider_uri)
deployer_interface.connect(ignore_solidity_check=ignore_solidity_check)
return deployer_interface
def __init__(self,
domain: str = None,
registry: BaseContractRegistry = None,
controller: bool = True,
federated_only: bool = False,
node_class: object = Ursula,
eth_provider_uri: str = None,
execution_timeout: int = DEFAULT_EXECUTION_TIMEOUT,
*args,
**kwargs):
self.federated_only = federated_only
if not self.federated_only:
if not eth_provider_uri:
raise ValueError(
'ETH Provider URI is required for decentralized Porter.')
if not BlockchainInterfaceFactory.is_interface_initialized(
eth_provider_uri=eth_provider_uri):
BlockchainInterfaceFactory.initialize_interface(
eth_provider_uri=eth_provider_uri)
self.registry = registry or InMemoryContractRegistry.from_latest_publication(
network=domain)
self.application_agent = ContractAgency.get_agent(
PREApplicationAgent, registry=self.registry)
else:
self.registry = NO_BLOCKCHAIN_CONNECTION.bool_value(False)
node_class.set_federated_mode(federated_only)
super().__init__(save_metadata=True,
domain=domain,
node_class=node_class,
*args,
**kwargs)
self.log = Logger(self.__class__.__name__)
self.execution_timeout = execution_timeout
# Controller Interface
self.interface = self._interface_class(porter=self)
self.controller = NO_CONTROL_PROTOCOL
if controller:
# TODO need to understand this better - only made it analogous to what was done for characters
self.make_cli_controller()
self.log.info(self.BANNER)
def test_geth_deployment_integration(instant_geth_dev_node, test_registry):
blockchain = BlockchainDeployerInterface(
provider_process=instant_geth_dev_node, poa=True) # always poa here.
BlockchainInterfaceFactory.register_interface(interface=blockchain)
# Make Deployer
etherbase = to_checksum_address(instant_geth_dev_node.accounts[0].decode(
)) # TODO: Make property on nucypher geth node instances?
administrator = ContractAdministrator(
registry=test_registry,
deployer_address=etherbase,
client_password=None) # dev accounts have no password.
assert int(blockchain.client.chain_id) == 1337
# Deploy
administrator.deploy_network_contracts(interactive=False) # just do it
def from_signer_uri(cls, uri: str, testnet: bool = False) -> 'Web3Signer':
from nucypher.blockchain.eth.interfaces import BlockchainInterface, BlockchainInterfaceFactory
try:
blockchain = BlockchainInterfaceFactory.get_or_create_interface(
provider_uri=uri)
except BlockchainInterface.UnsupportedProvider:
raise cls.InvalidSignerURI(uri)
signer = cls(client=blockchain.client)
return signer
def events(general_config, registry_options, contract_name, from_block,
to_block, event_name):
"""
Show events associated to NuCypher contracts
"""
emitter = _setup_emitter(general_config)
registry = registry_options.get_registry(emitter, general_config.debug)
blockchain = BlockchainInterfaceFactory.get_interface(
provider_uri=registry_options.provider_uri)
if not contract_name:
if event_name:
raise click.BadOptionUsage(
option_name='--event-name',
message='--event-name requires --contract-name')
contract_names = [
STAKING_ESCROW_CONTRACT_NAME, POLICY_MANAGER_CONTRACT_NAME
]
else:
contract_names = [contract_name]
if from_block is None:
# Sketch of logic for getting the approximate block height of current period start,
# so by default, this command only shows events of the current period
last_block = blockchain.client.w3.eth.blockNumber
staking_agent = ContractAgency.get_agent(StakingEscrowAgent,
registry=registry)
current_period = staking_agent.get_current_period()
current_period_start = datetime_at_period(
period=current_period,
seconds_per_period=staking_agent.staking_parameters()[0],
start_of_period=True)
seconds_from_midnight = int(
(maya.now() - current_period_start).total_seconds())
blocks_from_midnight = seconds_from_midnight // AVERAGE_BLOCK_TIME_IN_SECONDS
from_block = last_block - blocks_from_midnight
if to_block is None:
to_block = 'latest'
# TODO: additional input validation for block numbers
emitter.echo(f"Showing events from block {from_block} to {to_block}")
for contract_name in contract_names:
title = f" {contract_name} Events ".center(40, "-")
emitter.echo(f"\n{title}\n", bold=True, color='green')
agent = ContractAgency.get_agent_by_contract_name(
contract_name, registry)
names = agent.events.names if not event_name else [event_name]
for name in names:
emitter.echo(f"{name}:", bold=True, color='yellow')
event_method = agent.events[name]
for event_record in event_method(from_block=from_block,
to_block=to_block):
emitter.echo(f" - {event_record}")
def __fetch_principal_contract(self, contract_address: str = None) -> None:
"""Fetch the PreallocationEscrow deployment directly from the AllocationRegistry."""
if contract_address is not None:
contract_data = self.__allocation_registry.search(contract_address=contract_address)
else:
contract_data = self.__allocation_registry.search(beneficiary_address=self.beneficiary)
address, abi = contract_data
blockchain = BlockchainInterfaceFactory.get_interface()
principal_contract = blockchain.client.get_contract(abi=abi, address=address, ContractFactoryClass=Contract)
self.__principal_contract = principal_contract
def connect_to_blockchain(emitter: StdoutEmitter,
provider_uri: str,
debug: bool = False,
light: bool = False
) -> BlockchainInterface:
try:
# Note: Conditional for test compatibility.
if not BlockchainInterfaceFactory.is_interface_initialized(provider_uri=provider_uri):
BlockchainInterfaceFactory.initialize_interface(provider_uri=provider_uri,
light=light,
emitter=emitter)
emitter.echo(message=CONNECTING_TO_BLOCKCHAIN)
blockchain = BlockchainInterfaceFactory.get_interface(provider_uri=provider_uri)
return blockchain
except Exception as e:
if debug:
raise
emitter.echo(str(e), bold=True, color='red')
raise click.Abort
def bootstrap_network(cls, economics: BaseEconomics = None) -> Tuple['TesterBlockchain', 'InMemoryContractRegistry']:
"""For use with metric testing scripts"""
registry = InMemoryContractRegistry()
testerchain = cls()
BlockchainInterfaceFactory.register_interface(testerchain)
power = TransactingPower(password=INSECURE_DEVELOPMENT_PASSWORD,
account=testerchain.etherbase_account)
power.activate()
testerchain.transacting_power = power
origin = testerchain.client.etherbase
deployer = ContractAdministrator(deployer_address=origin,
registry=registry,
economics=economics or cls.DEFAULT_ECONOMICS,
staking_escrow_test_mode=True)
_receipts = deployer.deploy_network_contracts(interactive=False)
return testerchain, registry