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aios/active-runtime/app/aios_task_admission_bridge_contract.py
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Python

"""Bridge contract surface for Task Admission Bootstrap.
This module is intentionally transport-agnostic. The live Bridge may merge
these routes/operations into its existing authenticated/HTTPS surface, but the
authorization proof for the authorize operation is the verified delegation
epoch or Owner signature carried by the request itself.
No handler here can issue TaskPrincipal assertions or WriterLeases. Those remain
strictly downstream of a real admitted/claimed Agent Task.
"""
from __future__ import annotations
from typing import Any, Mapping
from aios_task_admission_bootstrap import TaskAdmissionBootstrapService
TASK_ADMISSION_ROUTES = {
"/v2/task-admission/envelope": "getTaskAdmissionEnvelope",
"/v2/task-admission/authorize": "submitTaskAdmissionAuthorization",
"/v2/task-admission/status": "getTaskAdmissionStatus",
}
TASK_ADMISSION_OPERATION_REQUIRED_FIELDS = {
"getTaskAdmissionEnvelope": (
"idempotency_key",
"task_id",
"repository",
"authority_base_oid",
"target_branch",
"generation",
"execution_digest",
"requested_capabilities",
"file_allowlist",
"risk",
),
"submitTaskAdmissionAuthorization": (
"envelope_id",
"authorization_kind",
),
"getTaskAdmissionStatus": ("envelope_id",),
}
TASK_ADMISSION_OPERATION_OPTIONAL_FIELDS = {
"getTaskAdmissionEnvelope": ("expires_in_seconds",),
"submitTaskAdmissionAuthorization": (
"delegation_epoch_id",
"owner_key_id",
"signature_base64",
),
"getTaskAdmissionStatus": (),
}
class TaskAdmissionBridgeContract:
def __init__(self, service: TaskAdmissionBootstrapService) -> None:
self.service = service
@staticmethod
def _validate_fields(operation: str, request: Mapping[str, Any]) -> None:
required = set(TASK_ADMISSION_OPERATION_REQUIRED_FIELDS[operation])
allowed = required | set(TASK_ADMISSION_OPERATION_OPTIONAL_FIELDS[operation])
if not required.issubset(request):
raise ValueError("TASK_ADMISSION_BRIDGE_REQUIRED_FIELDS_MISSING")
if set(request) - allowed:
raise ValueError("TASK_ADMISSION_BRIDGE_UNKNOWN_FIELDS")
def dispatch(self, operation: str, request: Mapping[str, Any]) -> dict[str, Any]:
if operation not in TASK_ADMISSION_OPERATION_REQUIRED_FIELDS:
raise ValueError("TASK_ADMISSION_BRIDGE_OPERATION_NOT_FOUND")
self._validate_fields(operation, request)
if operation == "getTaskAdmissionEnvelope":
return self.service.create_envelope(request)
if operation == "submitTaskAdmissionAuthorization":
return self.service.authorize_and_admit(request)
if operation == "getTaskAdmissionStatus":
return self.service.status(str(request["envelope_id"]))
raise ValueError("TASK_ADMISSION_BRIDGE_OPERATION_NOT_FOUND")
def handlers(self) -> dict[str, Any]:
return {
operation: (
lambda request, operation=operation: self.dispatch(operation, request)
)
for operation in TASK_ADMISSION_OPERATION_REQUIRED_FIELDS
}