core/homeassistant/components/backup/http.py

80 lines
2.3 KiB
Python

"""Http view for the Backup integration."""
from __future__ import annotations
import asyncio
from http import HTTPStatus
from typing import cast
from aiohttp import BodyPartReader
from aiohttp.hdrs import CONTENT_DISPOSITION
from aiohttp.web import FileResponse, Request, Response
from homeassistant.components.http import KEY_HASS, HomeAssistantView, require_admin
from homeassistant.core import HomeAssistant, callback
from homeassistant.util import slugify
from .const import DATA_MANAGER
@callback
def async_register_http_views(hass: HomeAssistant) -> None:
"""Register the http views."""
hass.http.register_view(DownloadBackupView)
hass.http.register_view(UploadBackupView)
class DownloadBackupView(HomeAssistantView):
"""Generate backup view."""
url = "/api/backup/download/{slug}"
name = "api:backup:download"
async def get(
self,
request: Request,
slug: str,
) -> FileResponse | Response:
"""Download a backup file."""
if not request["hass_user"].is_admin:
return Response(status=HTTPStatus.UNAUTHORIZED)
manager = request.app[KEY_HASS].data[DATA_MANAGER]
backup = await manager.async_get_backup(slug=slug)
if backup is None or not backup.path.exists():
return Response(status=HTTPStatus.NOT_FOUND)
return FileResponse(
path=backup.path.as_posix(),
headers={
CONTENT_DISPOSITION: f"attachment; filename={slugify(backup.name)}.tar"
},
)
class UploadBackupView(HomeAssistantView):
"""Generate backup view."""
url = "/api/backup/upload"
name = "api:backup:upload"
@require_admin
async def post(self, request: Request) -> Response:
"""Upload a backup file."""
manager = request.app[KEY_HASS].data[DATA_MANAGER]
reader = await request.multipart()
contents = cast(BodyPartReader, await reader.next())
try:
await manager.async_receive_backup(contents=contents)
except OSError as err:
return Response(
body=f"Can't write backup file {err}",
status=HTTPStatus.INTERNAL_SERVER_ERROR,
)
except asyncio.CancelledError:
return Response(status=HTTPStatus.INTERNAL_SERVER_ERROR)
return Response(status=HTTPStatus.CREATED)