def collect_policy_parameters(emitter: StdoutEmitter, alice: Alice,
force: bool, bob_identifier: str, label: str,
threshold: int, shares: int, value: int,
rate: int,
expiration: maya.MayaDT) -> PolicyParameters:
# Interactive collection follows:
# - Disclaimer
# - Label
# - Expiration Date & Time
# - M of N
# - Policy Value (ETH)
label = collect_label(label=label, bob_identifier=bob_identifier)
# TODO: Remove this line when the time is right.
paint_probationary_period_disclaimer(emitter)
expiration = collect_expiration(alice=alice,
expiration=expiration,
force=force)
enforce_probationary_period(emitter=emitter, expiration=expiration)
threshold, shares = collect_redundancy_ratio(alice=alice,
threshold=threshold,
shares=shares,
force=force)
if alice.federated_only:
rate, value = FEDERATED, FEDERATED
else:
rate, value = collect_policy_rate_and_value(alice=alice,
rate=rate,
value=value,
shares=shares,
force=force)
policy_parameters = PolicyParameters(label=label,
threshold=threshold,
shares=shares,
expiration=expiration,
rate=rate,
value=value)
return policy_parameters
def grant(general_config,
bob,
bob_encrypting_key,
bob_verifying_key,
label,
value,
rate,
expiration,
m, n,
character_options,
config_file,
force):
"""Create and enact an access policy for some Bob. """
# Setup
emitter = setup_emitter(general_config)
ALICE = character_options.create_character(emitter, config_file, general_config.json_ipc)
# Policy option validation
if ALICE.federated_only:
if any((value, rate)):
message = "Can't use --value or --rate with a federated Alice."
raise click.BadOptionUsage(option_name="--value, --rate", message=message)
elif bool(value) and bool(rate):
raise click.BadOptionUsage(option_name="--rate", message="Can't use --value if using --rate")
# Grantee selection
if bob and any((bob_encrypting_key, bob_verifying_key)):
message = '--bob cannot be used with --bob-encrypting-key or --bob-veryfying key'
raise click.BadOptionUsage(option_name='--bob', message=message)
if bob:
card = Card.load(identifier=bob)
if card.character is not Bob:
emitter.error('Grantee card is not a Bob.')
raise click.Abort
paint_single_card(emitter=emitter, card=card)
if not force:
click.confirm('Is this the correct grantee (Bob)?', abort=True)
bob_encrypting_key = card.encrypting_key.hex()
bob_verifying_key = card.verifying_key.hex()
# Interactive collection follows:
# TODO: Extricate to support modules
# - Disclaimer
# - Label
# - Expiration Date & Time
# - M of N
# - Policy Value (ETH)
# Policy Expiration
# TODO: Remove this line when the time is right.
paint_probationary_period_disclaimer(emitter)
# Label
if not label:
label = click.prompt(f'Enter label to grant Bob {bob_verifying_key[:8]}', type=click.STRING)
if not force and not expiration:
if ALICE.duration_periods:
# TODO: use a default in days or periods?
expiration = maya.now() + timedelta(days=ALICE.duration_periods) # default
if not click.confirm(f'Use default policy duration (expires {expiration})?'):
expiration = click.prompt('Enter policy expiration datetime', type=click.DateTime())
else:
# No policy duration default default available; Go interactive
expiration = click.prompt('Enter policy expiration datetime', type=click.DateTime())
# TODO: Remove this line when the time is right.
enforce_probationary_period(emitter=emitter, expiration=expiration)
# Policy Threshold and Shares
if not n:
n = ALICE.n
if not force and not click.confirm(f'Use default value for N ({n})?', default=True):
n = click.prompt('Enter total number of shares (N)', type=click.INT)
if not m:
m = ALICE.m
if not force and not click.confirm(f'Use default value for M ({m})?', default=True):
m = click.prompt('Enter threshold (M)', type=click.IntRange(1, n))
# Policy Value
policy_value_provided = bool(value) or bool(rate)
if not ALICE.federated_only and not policy_value_provided:
rate = ALICE.default_rate # TODO #1709 - Fine tuning and selection of default rates
if not force:
default_gwei = Web3.fromWei(rate, 'gwei')
prompt = "Confirm rate of {node_rate} gwei ({total_rate} gwei per period)?"
if not click.confirm(prompt.format(node_rate=default_gwei, total_rate=default_gwei*n), default=True):
interactive_rate = click.prompt('Enter rate per period in gwei', type=GWEI)
# TODO: Validate interactively collected rate (#1709)
click.confirm(prompt.format(node_rate=rate, total_rate=rate*n), default=True, abort=True)
rate = Web3.toWei(interactive_rate, 'gwei')
# Request
grant_request = {
'bob_encrypting_key': bob_encrypting_key,
'bob_verifying_key': bob_verifying_key,
'label': label,
'm': m,
'n': n,
'expiration': expiration,
}
if not ALICE.federated_only:
if value:
grant_request['value'] = value
elif rate:
grant_request['rate'] = rate # in wei
if not force and not general_config.json_ipc:
confirm_staged_grant(emitter=emitter, grant_request=grant_request)
emitter.echo(f'Granting Access to {bob_verifying_key[:8]}', color='yellow')
return ALICE.controller.grant(request=grant_request)