state-hub/api/routers/policy.py

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import re
from pathlib import Path
from fastapi import APIRouter, HTTPException
from pydantic import BaseModel
POLICY_DIR = Path(__file__).parent.parent.parent / "policies"
_VALID_NAME = re.compile(r"^[a-z0-9][a-z0-9-]{0,63}$")
router = APIRouter(prefix="/policy", tags=["policy"])
class PolicyRead(BaseModel):
name: str
content: str
class PolicyUpdate(BaseModel):
content: str
def _policy_path(name: str) -> Path:
if not _VALID_NAME.match(name):
raise HTTPException(status_code=400, detail="Invalid policy name")
path = POLICY_DIR / f"{name}.md"
if not path.exists():
raise HTTPException(status_code=404, detail=f"Policy '{name}' not found")
return path
@router.get("/{name}", response_model=PolicyRead)
def get_policy(name: str) -> PolicyRead:
path = _policy_path(name)
return PolicyRead(name=name, content=path.read_text())
@router.put("/{name}", response_model=PolicyRead)
def update_policy(name: str, body: PolicyUpdate) -> PolicyRead:
path = _policy_path(name)
path.write_text(body.content)
return PolicyRead(name=name, content=body.content)