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import enum
from typing import Optional, Tuple
from uaclient.api.api import APIEndpoint
from uaclient.api.data_types import AdditionalInfo
from uaclient.config import UAConfig
from uaclient.data_types import (
BoolDataValue,
DataObject,
Field,
IntDataValue,
StringDataValue,
)
from uaclient.defaults import (
CONTRACT_EXPIRY_GRACE_PERIOD_DAYS,
CONTRACT_EXPIRY_PENDING_DAYS,
)
from uaclient.files import machine_token
class IsAttachedResult(DataObject, AdditionalInfo):
fields = [
Field(
"is_attached",
BoolDataValue,
doc=(
"True if the machine is attached to an Ubuntu Pro subscription"
),
),
Field(
"contract_status",
StringDataValue,
False,
doc="Status of the Ubuntu Pro subscription",
),
Field(
"contract_remaining_days",
IntDataValue,
doc="Number of days left in the Ubuntu Pro subscription",
),
Field(
"is_attached_and_contract_valid",
BoolDataValue,
doc=(
"True if the machine is attached to an Ubuntu Pro subscription"
" and that subscription is not expired"
),
),
]
def __init__(
self,
*,
is_attached: bool,
contract_status: Optional[str],
contract_remaining_days: int,
is_attached_and_contract_valid: bool
):
self.is_attached = is_attached
self.contract_status = contract_status
self.contract_remaining_days = contract_remaining_days
self.is_attached_and_contract_valid = is_attached_and_contract_valid
@enum.unique
class ContractExpiryStatus(enum.Enum):
NONE = None
ACTIVE = "active"
ACTIVE_EXPIRED_SOON = "active-soon-to-expire"
EXPIRED_GRACE_PERIOD = "grace-period"
EXPIRED = "expired"
def _get_contract_expiry_status(
cfg: UAConfig,
is_machine_attached: bool,
remaining_days: Optional[int],
) -> Tuple[ContractExpiryStatus, int]:
"""Return a tuple [ContractExpiryStatus, num_days]"""
if not is_machine_attached:
return ContractExpiryStatus.NONE, 0
grace_period = CONTRACT_EXPIRY_GRACE_PERIOD_DAYS
pending_expiry = CONTRACT_EXPIRY_PENDING_DAYS
# if unknown assume the worst
if remaining_days is None:
return ContractExpiryStatus.EXPIRED, -grace_period
if 0 <= remaining_days <= pending_expiry:
return ContractExpiryStatus.ACTIVE_EXPIRED_SOON, remaining_days
elif -grace_period <= remaining_days < 0:
return ContractExpiryStatus.EXPIRED_GRACE_PERIOD, remaining_days
elif remaining_days < -grace_period:
return ContractExpiryStatus.EXPIRED, remaining_days
return ContractExpiryStatus.ACTIVE, remaining_days
def is_attached() -> IsAttachedResult:
return _is_attached(UAConfig())
def _is_attached(cfg: UAConfig) -> IsAttachedResult:
"""
This endpoint shows if the machine is attached to a Pro subscription.
"""
machine_token_file = machine_token.get_machine_token_file(cfg)
is_machine_attached = bool(machine_token_file.machine_token)
contract_status, remaining_days = _get_contract_expiry_status(
cfg, is_machine_attached, machine_token_file.contract_remaining_days
)
is_attached_and_contract_valid = True
if (
not is_machine_attached
or contract_status == ContractExpiryStatus.EXPIRED
):
is_attached_and_contract_valid = False
return IsAttachedResult(
is_attached=is_machine_attached,
contract_status=contract_status.value,
contract_remaining_days=remaining_days,
is_attached_and_contract_valid=is_attached_and_contract_valid,
)
endpoint = APIEndpoint(
version="v1",
name="IsAttached",
fn=_is_attached,
options_cls=None,
)
_doc = {
"introduced_in": "28",
"requires_network": False,
"example_python": """
from uaclient.api.u.pro.status.is_attached.v1 import is_attached
result = is_attached()
""", # noqa: E501
"result_class": IsAttachedResult,
"exceptions": [],
"example_cli": "pro api u.pro.status.is_attached.v1",
"example_json": """
{
"contract_remaining_days": 360,
"contract_status": "active",
"is_attached": true,
"is_attached_and_contract_valid": true
}
""",
"extra": """
.. tab-item:: Explanation
:sync: explanation
The ``contract_status`` field can return 4 different states, they are:
* **active**: The contract is currently valid.
* **grace-period**: The contract is in the grace period. This means that
it is expired, but there are still some days where the contract will be
valid.
* **active-soon-to-expire**: The contract is almost expired, but still
valid.
* **expired**: The contract is expired and no longer valid.
""",
}