Current File : //lib/python3/dist-packages/uaclient/entitlements/base.py
import abc
import logging
import os
import re
import sys
from datetime import datetime
from typing import Any, Dict, List, Optional, Tuple, Type, Union
import yaml
from uaclient import config, contract, event_logger, exceptions, messages, util
from uaclient.defaults import DEFAULT_HELP_FILE
from uaclient.entitlements.entitlement_status import (
ApplicabilityStatus,
ApplicationStatus,
CanDisableFailure,
CanDisableFailureReason,
CanEnableFailure,
CanEnableFailureReason,
ContractStatus,
UserFacingStatus,
)
from uaclient.types import MessagingOperationsDict, StaticAffordance
from uaclient.util import is_config_value_true
RE_KERNEL_UNAME = (
r"(?P<major>[\d]+)[.-](?P<minor>[\d]+)[.-](?P<patch>[\d]+\-[\d]+)"
r"-(?P<flavor>[A-Za-z0-9_-]+)"
)
event = event_logger.get_event_logger()
class IncompatibleService:
def __init__(
self,
entitlement: Type["UAEntitlement"],
named_msg: messages.NamedMessage,
):
self.entitlement = entitlement
self.named_msg = named_msg
class UAEntitlement(metaclass=abc.ABCMeta):
# Optional URL for top-level product service information
help_doc_url = None # type: str
# Whether to assume yes to any messaging prompts
assume_yes = False
# Whether that entitlement is in beta stage
is_beta = False
# Help info message for the entitlement
_help_info = None # type: str
# List of services that are incompatible with this service
_incompatible_services = () # type: Tuple[IncompatibleService, ...]
# List of services that must be active before enabling this service
_required_services = () # type: Tuple[str, ...]
# List of services that depend on this service
_dependent_services = () # type: Tuple[str, ...]
@property
@abc.abstractmethod
def name(self) -> str:
"""The lowercase name of this entitlement"""
pass
@property
def valid_names(self) -> List[str]:
"""The list of names this entitlement may be called."""
valid_names = [self.name]
if self.presentation_name != self.name:
valid_names.append(self.presentation_name)
return valid_names
@property
@abc.abstractmethod
def title(self) -> str:
"""The human readable title of this entitlement"""
pass
@property
@abc.abstractmethod
def description(self) -> str:
"""A sentence describing this entitlement"""
pass
@property
def presentation_name(self) -> str:
"""The user-facing name shown for this entitlement"""
return (
self.cfg.entitlements.get(self.name, {})
.get("entitlement", {})
.get("affordances", {})
.get("presentedAs", self.name)
)
@property
def help_info(self) -> str:
"""Help information for the entitlement"""
if self._help_info is None:
help_dict = {}
if os.path.exists(DEFAULT_HELP_FILE):
with open(DEFAULT_HELP_FILE, "r") as f:
help_dict = yaml.safe_load(f)
self._help_info = help_dict.get(self.name, {}).get("help", "")
return self._help_info
# A tuple of 3-tuples with (failure_message, functor, expected_results)
# If any static_affordance does not match expected_results fail with
# <failure_message>. Overridden in livepatch and fips
@property
def static_affordances(self) -> Tuple[StaticAffordance, ...]:
return ()
@property
def incompatible_services(self) -> Tuple[IncompatibleService, ...]:
"""
Return a list of packages that aren't compatible with the entitlement.
When we are enabling the entitlement we can directly ask the user
if those entitlements can be disabled before proceding.
Overridden in livepatch and fips
"""
return self._incompatible_services
@property
def required_services(self) -> Tuple[str, ...]:
"""
Return a list of packages that must be active before enabling this
service. When we are enabling the entitlement we can directly ask
the user if those entitlements can be enabled before proceding.
Overridden in ros and ros-updates.
"""
return self._required_services
@property
def dependent_services(self) -> Tuple[str, ...]:
"""
Return a list of packages that depend on this service.
We will use that list during disable operations, where
a disable operation will also disable all of the services
required by the original service
Overriden in esm-apps and esm-infra
"""
return self._dependent_services
# Any custom messages to emit to the console or callables which are
# handled at pre_enable, pre_disable, pre_install or post_enable stages
@property
def messaging(self) -> MessagingOperationsDict:
return {}
def __init__(
self,
cfg: Optional[config.UAConfig] = None,
assume_yes: bool = False,
allow_beta: bool = False,
called_name: str = "",
) -> None:
"""Setup UAEntitlement instance
@param config: Parsed configuration dictionary
"""
if not cfg:
cfg = config.UAConfig()
self.cfg = cfg
self.assume_yes = assume_yes
self.allow_beta = allow_beta
self._called_name = called_name
self._valid_service = None
@property
def valid_service(self):
"""Check if the service is marked as valid (non-beta)"""
if self._valid_service is None:
self._valid_service = (
not self.is_beta
or self.allow_beta
or is_config_value_true(self.cfg.cfg, "features.allow_beta")
)
return self._valid_service
# using Union instead of Optional here to signal that it may expand to
# support additional reason types in the future.
def enable(
self, silent: bool = False
) -> Tuple[bool, Union[None, CanEnableFailure]]:
"""Enable specific entitlement.
@return: tuple of (success, optional reason)
(True, None) on success.
(False, reason) otherwise. reason is only non-None if it is a
populated CanEnableFailure reason. This may expand to
include other types of reasons in the future.
"""
msg_ops = self.messaging.get("pre_can_enable", [])
if not util.handle_message_operations(msg_ops):
return False, None
can_enable, fail = self.can_enable()
if not can_enable:
if fail is None:
# this shouldn't happen, but if it does we shouldn't continue
return False, None
elif fail.reason == CanEnableFailureReason.INCOMPATIBLE_SERVICE:
# Try to disable those services before proceeding with enable
incompat_ret, error = self.handle_incompatible_services()
if not incompat_ret:
fail.message = error
return False, fail
elif (
fail.reason
== CanEnableFailureReason.INACTIVE_REQUIRED_SERVICES
):
# Try to enable those services before proceeding with enable
req_ret, error = self._enable_required_services()
if not req_ret:
fail.message = error
return False, fail
else:
# every other reason means we can't continue
return False, fail
msg_ops = self.messaging.get("pre_enable", [])
if not util.handle_message_operations(msg_ops):
return False, None
ret = self._perform_enable(silent=silent)
if not ret:
return False, None
msg_ops = self.messaging.get("post_enable", [])
if not util.handle_message_operations(msg_ops):
return False, None
return True, None
@abc.abstractmethod
def _perform_enable(self, silent: bool = False) -> bool:
"""
Enable specific entitlement. This should be implemented by subclasses.
This method does the actual enablement, and does not check can_enable
or handle pre_enable or post_enable messaging.
@return: True on success, False otherwise.
"""
pass
def can_disable(
self, ignore_dependent_services: bool = False
) -> Tuple[bool, Optional[CanDisableFailure]]:
"""Report whether or not disabling is possible for the entitlement.
:return:
(True, None) if can disable
(False, CanDisableFailure) if can't disable
"""
application_status, _ = self.application_status()
if application_status == ApplicationStatus.DISABLED:
return (
False,
CanDisableFailure(
CanDisableFailureReason.ALREADY_DISABLED,
message=messages.ALREADY_DISABLED.format(title=self.title),
),
)
if self.dependent_services and not ignore_dependent_services:
if self.detect_dependent_services():
return (
False,
CanDisableFailure(
CanDisableFailureReason.ACTIVE_DEPENDENT_SERVICES
),
)
return True, None
def can_enable(self) -> Tuple[bool, Optional[CanEnableFailure]]:
"""
Report whether or not enabling is possible for the entitlement.
:return:
(True, None) if can enable
(False, CanEnableFailure) if can't enable
"""
if self.is_access_expired():
logging.debug(
"Updating contract on service '%s' expiry", self.name
)
contract.request_updated_contract(self.cfg)
if not self.contract_status() == ContractStatus.ENTITLED:
return (
False,
CanEnableFailure(
CanEnableFailureReason.NOT_ENTITLED,
message=messages.UNENTITLED.format(title=self.title),
),
)
application_status, _ = self.application_status()
if application_status != ApplicationStatus.DISABLED:
return (
False,
CanEnableFailure(
CanEnableFailureReason.ALREADY_ENABLED,
message=messages.ALREADY_ENABLED.format(title=self.title),
),
)
if not self.valid_service:
return (False, CanEnableFailure(CanEnableFailureReason.IS_BETA))
applicability_status, details = self.applicability_status()
if applicability_status == ApplicabilityStatus.INAPPLICABLE:
return (
False,
CanEnableFailure(
CanEnableFailureReason.INAPPLICABLE, message=details
),
)
if self.incompatible_services:
if self.detect_incompatible_services():
return (
False,
CanEnableFailure(
CanEnableFailureReason.INCOMPATIBLE_SERVICE
),
)
if self.required_services:
if not self.check_required_services_active():
return (
False,
CanEnableFailure(
CanEnableFailureReason.INACTIVE_REQUIRED_SERVICES
),
)
return (True, None)
def _check_any_service_is_active(self, services: Tuple[str, ...]) -> bool:
from uaclient.entitlements import (
EntitlementNotFoundError,
entitlement_factory,
)
for service in services:
try:
ent_cls = entitlement_factory(cfg=self.cfg, name=service)
except EntitlementNotFoundError:
continue
ent_status, _ = ent_cls(self.cfg).application_status()
if ent_status == ApplicationStatus.ENABLED:
return True
return False
def detect_dependent_services(self) -> bool:
"""
Check for depedent services.
:return:
True if there are dependent services enabled
False if there are no dependent services enabled
"""
return self._check_any_service_is_active(
services=self.dependent_services
)
def check_required_services_active(self):
"""
Check if all required services are active
:return:
True if all required services are active
False is at least one of the required services is disabled
"""
from uaclient.entitlements import entitlement_factory
for required_service in self.required_services:
try:
ent_cls = entitlement_factory(
cfg=self.cfg, name=required_service
)
ent_status, _ = ent_cls(self.cfg).application_status()
if ent_status != ApplicationStatus.ENABLED:
return False
except exceptions.EntitlementNotFoundError:
pass
return True
def blocking_incompatible_services(self) -> List[IncompatibleService]:
"""
:return: List of incompatible services that are enabled
"""
ret = []
for service in self.incompatible_services:
ent_status, _ = service.entitlement(self.cfg).application_status()
if ent_status == ApplicationStatus.ENABLED:
ret.append(service)
return ret
def detect_incompatible_services(self) -> bool:
"""
Check for incompatible services.
:return:
True if there are incompatible services enabled
False if there are no incompatible services enabled
"""
return len(self.blocking_incompatible_services()) > 0
def handle_incompatible_services(
self,
) -> Tuple[bool, Optional[messages.NamedMessage]]:
"""
Prompt user when incompatible services are found during enable.
When enabling a service, we may find that there is an incompatible
service already enable. In that situation, we can ask the user
if the incompatible service should be disabled before proceeding.
There are also different ways to configure that behavior:
We can disable removing incompatible service during enable by
adding the following lines into uaclient.conf:
features:
block_disable_on_enable: true
"""
cfg_block_disable_on_enable = util.is_config_value_true(
config=self.cfg.cfg,
path_to_value="features.block_disable_on_enable",
)
for service in self.blocking_incompatible_services():
ent = service.entitlement(self.cfg, assume_yes=True)
user_msg = messages.INCOMPATIBLE_SERVICE.format(
service_being_enabled=self.title,
incompatible_service=ent.title,
)
e_msg = messages.INCOMPATIBLE_SERVICE_STOPS_ENABLE.format(
service_being_enabled=self.title,
incompatible_service=ent.title,
)
if cfg_block_disable_on_enable:
return False, e_msg
if not util.prompt_for_confirmation(
msg=user_msg, assume_yes=self.assume_yes
):
return False, e_msg
disable_msg = "Disabling incompatible service: {}".format(
ent.title
)
event.info(disable_msg)
ret = ent.disable(silent=True)
if not ret:
return ret, None
return True, None
def _enable_required_services(
self,
) -> Tuple[bool, Optional[messages.NamedMessage]]:
"""
Prompt user when required services are found during enable.
When enabling a service, we may find that there are required services
that must be enabled first. In that situation, we can ask the user
if the required service should be enabled before proceeding.
"""
from uaclient.entitlements import entitlement_factory
for required_service in self.required_services:
try:
ent_cls = entitlement_factory(
cfg=self.cfg, name=required_service
)
except exceptions.EntitlementNotFoundError:
msg = messages.REQUIRED_SERVICE_NOT_FOUND.format(
service=required_service
)
return False, msg
ent = ent_cls(self.cfg, allow_beta=True)
is_service_disabled = (
ent.application_status()[0] == ApplicationStatus.DISABLED
)
if is_service_disabled:
user_msg = messages.REQUIRED_SERVICE.format(
service_being_enabled=self.title,
required_service=ent.title,
)
e_msg = messages.REQUIRED_SERVICE_STOPS_ENABLE.format(
service_being_enabled=self.title,
required_service=ent.title,
)
if not util.prompt_for_confirmation(
msg=user_msg, assume_yes=self.assume_yes
):
return False, e_msg
event.info("Enabling required service: {}".format(ent.title))
ret, fail = ent.enable(silent=True)
if not ret:
error_msg = ""
if fail.message and fail.message.msg:
error_msg = "\n" + fail.message.msg
msg = messages.ERROR_ENABLING_REQUIRED_SERVICE.format(
error=error_msg, service=ent.title
)
return ret, msg
return True, None
def applicability_status(
self,
) -> Tuple[ApplicabilityStatus, Optional[messages.NamedMessage]]:
"""Check all contract affordances to vet current platform
Affordances are a list of support constraints for the entitlement.
Examples include a list of supported series, architectures for kernel
revisions.
:return:
tuple of (ApplicabilityStatus, NamedMessage). APPLICABLE if
platform passes all defined affordances, INAPPLICABLE if it doesn't
meet all of the provided constraints.
"""
entitlement_cfg = self.cfg.entitlements.get(self.name)
if not entitlement_cfg:
return (
ApplicabilityStatus.APPLICABLE,
messages.NO_ENTITLEMENT_AFFORDANCES_CHECKED,
)
for error_message, functor, expected_result in self.static_affordances:
if functor() != expected_result:
return ApplicabilityStatus.INAPPLICABLE, error_message
affordances = entitlement_cfg["entitlement"].get("affordances", {})
platform = util.get_platform_info()
affordance_arches = affordances.get("architectures", None)
if (
affordance_arches is not None
and platform["arch"] not in affordance_arches
):
return (
ApplicabilityStatus.INAPPLICABLE,
messages.INAPPLICABLE_ARCH.format(
title=self.title,
arch=platform["arch"],
supported_arches=", ".join(affordance_arches),
),
)
affordance_series = affordances.get("series", None)
if (
affordance_series is not None
and platform["series"] not in affordance_series
):
return (
ApplicabilityStatus.INAPPLICABLE,
messages.INAPPLICABLE_SERIES.format(
title=self.title, series=platform["version"]
),
)
kernel = platform["kernel"]
affordance_kernels = affordances.get("kernelFlavors", None)
affordance_min_kernel = affordances.get("minKernelVersion")
match = re.match(RE_KERNEL_UNAME, kernel)
if affordance_kernels is not None:
if not match or match.group("flavor") not in affordance_kernels:
return (
ApplicabilityStatus.INAPPLICABLE,
messages.INAPPLICABLE_KERNEL.format(
title=self.title,
kernel=kernel,
supported_kernels=", ".join(affordance_kernels),
),
)
if affordance_min_kernel:
invalid_msg = messages.INAPPLICABLE_KERNEL_VER.format(
title=self.title,
kernel=kernel,
min_kernel=affordance_min_kernel,
)
try:
kernel_major, kernel_minor = affordance_min_kernel.split(".")
min_kern_major = int(kernel_major)
min_kern_minor = int(kernel_minor)
except ValueError:
logging.warning(
"Could not parse minKernelVersion: %s",
affordance_min_kernel,
)
return (ApplicabilityStatus.INAPPLICABLE, invalid_msg)
if not match:
return ApplicabilityStatus.INAPPLICABLE, invalid_msg
kernel_major = int(match.group("major"))
kernel_minor = int(match.group("minor"))
if kernel_major < min_kern_major:
return ApplicabilityStatus.INAPPLICABLE, invalid_msg
elif (
kernel_major == min_kern_major
and kernel_minor < min_kern_minor
):
return ApplicabilityStatus.INAPPLICABLE, invalid_msg
return ApplicabilityStatus.APPLICABLE, None
@abc.abstractmethod
def _perform_disable(self, silent: bool = False) -> bool:
"""
Disable specific entitlement. This should be implemented by subclasses.
This method does the actual disable, and does not check can_disable
or handle pre_disable or post_disable messaging.
@param silent: Boolean set True to silence print/log of messages
@return: True on success, False otherwise.
"""
pass
def _disable_dependent_services(
self, silent: bool
) -> Tuple[bool, Optional[messages.NamedMessage]]:
"""
Disable dependent services
When performing a disable operation, we might have
other services that depend on the original services.
If that is true, we will alert the user about this
and prompt for confirmation to disable these services
as well.
@param silent: Boolean set True to silence print/log of messages
"""
from uaclient.entitlements import entitlement_factory
for dependent_service in self.dependent_services:
try:
ent_cls = entitlement_factory(
cfg=self.cfg, name=dependent_service
)
except exceptions.EntitlementNotFoundError:
msg = messages.DEPENDENT_SERVICE_NOT_FOUND.format(
service=dependent_service
)
event.info(info_msg=msg.msg, file_type=sys.stderr)
return False, msg
ent = ent_cls(cfg=self.cfg, assume_yes=True)
is_service_enabled = (
ent.application_status()[0] == ApplicationStatus.ENABLED
)
if is_service_enabled:
user_msg = messages.DEPENDENT_SERVICE.format(
dependent_service=ent.title,
service_being_disabled=self.title,
)
e_msg = messages.DEPENDENT_SERVICE_STOPS_DISABLE.format(
service_being_disabled=self.title,
dependent_service=ent.title,
)
if not util.prompt_for_confirmation(
msg=user_msg, assume_yes=self.assume_yes
):
return False, e_msg
if not silent:
event.info(
messages.DISABLING_DEPENDENT_SERVICE.format(
required_service=ent.title
)
)
ret, fail = ent.disable(silent=True)
if not ret:
error_msg = ""
if fail.message and fail.message.msg:
error_msg = "\n" + fail.message.msg
msg = messages.FAILED_DISABLING_DEPENDENT_SERVICE.format(
error=error_msg, required_service=ent.title
)
return False, msg
return True, None
def _check_for_reboot(self) -> bool:
"""Check if system needs to be rebooted."""
return util.should_reboot()
def _check_for_reboot_msg(
self, operation: str, silent: bool = False
) -> None:
"""Check if user should be alerted that a reboot must be performed.
@param operation: The operation being executed.
@param silent: Boolean set True to silence print/log of messages
"""
if self._check_for_reboot() and not silent:
event.info(
messages.ENABLE_REBOOT_REQUIRED_TMPL.format(
operation=operation
)
)
def disable(
self, silent: bool = False
) -> Tuple[bool, Optional[CanDisableFailure]]:
"""Disable specific entitlement
@param silent: Boolean set True to silence print/log of messages
@return: tuple of (success, optional reason)
(True, None) on success.
(False, reason) otherwise. reason is only non-None if it is a
populated CanDisableFailure reason. This may expand to
include other types of reasons in the future.
"""
msg_ops = self.messaging.get("pre_disable", [])
if not util.handle_message_operations(msg_ops):
return False, None
can_disable, fail = self.can_disable()
if not can_disable:
if fail is None:
# this shouldn't happen, but if it does we shouldn't continue
return False, None
elif (
fail.reason
== CanDisableFailureReason.ACTIVE_DEPENDENT_SERVICES
):
ret, msg = self._disable_dependent_services(silent=silent)
if not ret:
fail.message = msg
return False, fail
else:
# every other reason means we can't continue
return False, fail
if not self._perform_disable(silent=silent):
return False, None
msg_ops = self.messaging.get("post_disable", [])
if not util.handle_message_operations(msg_ops):
return False, None
self._check_for_reboot_msg(
operation="disable operation", silent=silent
)
return True, None
def contract_status(self) -> ContractStatus:
"""Return whether the user is entitled to the entitlement or not"""
if not self.cfg.is_attached:
return ContractStatus.UNENTITLED
entitlement_cfg = self.cfg.entitlements.get(self.name, {})
if entitlement_cfg and entitlement_cfg["entitlement"].get("entitled"):
return ContractStatus.ENTITLED
return ContractStatus.UNENTITLED
def is_access_expired(self) -> bool:
"""Return entitlement access info as stale and needing refresh."""
entitlement_contract = self.cfg.entitlements.get(self.name, {})
# TODO(No expiry per resource in MVP yet)
expire_str = entitlement_contract.get("expires")
if not expire_str:
return False
expiry = datetime.strptime(expire_str, "%Y-%m-%dT%H:%M:%S.%fZ")
if expiry >= datetime.utcnow():
return False
return True
def _check_application_status_on_cache(self) -> ApplicationStatus:
"""Check on the state of application on the status cache."""
status_cache = self.cfg.read_cache("status-cache")
if status_cache is None:
return ApplicationStatus.DISABLED
services_status_list = status_cache.get("services", [])
for service in services_status_list:
if service.get("name") == self.name:
service_status = service.get("status")
if service_status == "enabled":
return ApplicationStatus.ENABLED
else:
return ApplicationStatus.DISABLED
return ApplicationStatus.DISABLED
def process_contract_deltas(
self,
orig_access: Dict[str, Any],
deltas: Dict[str, Any],
allow_enable: bool = False,
) -> bool:
"""Process any contract access deltas for this entitlement.
:param orig_access: Dictionary containing the original
resourceEntitlement access details.
:param deltas: Dictionary which contains only the changed access keys
and values.
:param allow_enable: Boolean set True if allowed to perform the enable
operation. When False, a message will be logged to inform the user
about the recommended enabled service.
:return: True when delta operations are processed; False when noop.
:raise: UserFacingError when auto-enable fails unexpectedly.
"""
if not deltas:
return True # We processed all deltas that needed processing
delta_entitlement = deltas.get("entitlement", {})
delta_directives = delta_entitlement.get("directives", {})
status_cache = self.cfg.read_cache("status-cache")
transition_to_unentitled = bool(delta_entitlement == util.DROPPED_KEY)
if not transition_to_unentitled:
if delta_entitlement:
util.apply_contract_overrides(deltas)
delta_entitlement = deltas["entitlement"]
if orig_access and "entitled" in delta_entitlement:
transition_to_unentitled = delta_entitlement["entitled"] in (
False,
util.DROPPED_KEY,
)
if transition_to_unentitled:
if delta_directives and status_cache:
application_status = self._check_application_status_on_cache()
else:
application_status, _ = self.application_status()
if application_status != ApplicationStatus.DISABLED:
if self.can_disable():
self.disable()
logging.info(
"Due to contract refresh, '%s' is now disabled.",
self.name,
)
else:
logging.warning(
"Unable to disable '%s' as recommended during contract"
" refresh. Service is still active. See"
" `ua status`",
self.name,
)
# Clean up former entitled machine-access-<name> response cache
# file because uaclient doesn't access machine-access-* routes or
# responses on unentitled services.
self.cfg.delete_cache_key("machine-access-{}".format(self.name))
return True
resourceToken = orig_access.get("resourceToken")
if not resourceToken:
resourceToken = deltas.get("resourceToken")
delta_obligations = delta_entitlement.get("obligations", {})
enable_by_default = bool(
delta_obligations.get("enableByDefault") and resourceToken
)
if enable_by_default:
self.allow_beta = True
can_enable, _ = self.can_enable()
if can_enable and enable_by_default:
if allow_enable:
msg = messages.ENABLE_BY_DEFAULT_TMPL.format(name=self.name)
event.info(msg, file_type=sys.stderr)
self.enable()
else:
msg = messages.ENABLE_BY_DEFAULT_MANUAL_TMPL.format(
name=self.name
)
event.info(msg, file_type=sys.stderr)
return True
return False
def user_facing_status(
self,
) -> Tuple[UserFacingStatus, Optional[messages.NamedMessage]]:
"""Return (user-facing status, details) for entitlement"""
applicability, details = self.applicability_status()
if applicability != ApplicabilityStatus.APPLICABLE:
return UserFacingStatus.INAPPLICABLE, details
entitlement_cfg = self.cfg.entitlements.get(self.name)
if not entitlement_cfg:
return (
UserFacingStatus.UNAVAILABLE,
messages.SERVICE_NOT_ENTITLED.format(title=self.title),
)
elif entitlement_cfg["entitlement"].get("entitled", False) is False:
return (
UserFacingStatus.UNAVAILABLE,
messages.SERVICE_NOT_ENTITLED.format(title=self.title),
)
application_status, explanation = self.application_status()
user_facing_status = {
ApplicationStatus.ENABLED: UserFacingStatus.ACTIVE,
ApplicationStatus.DISABLED: UserFacingStatus.INACTIVE,
}[application_status]
return user_facing_status, explanation
@abc.abstractmethod
def application_status(
self,
) -> Tuple[ApplicationStatus, Optional[messages.NamedMessage]]:
"""
The current status of application of this entitlement
:return:
A tuple of (ApplicationStatus, human-friendly reason)
"""
pass
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