Files
mealie/mealie/routes/utility_routes.py
Hayden 7222abe244 security: arbitrary file download by authenticated user (#2867)
* restricts download tokens to data directory

* block requests outside of the data dir
2023-12-19 18:34:34 -09:00

28 lines
891 B
Python

from pathlib import Path
from fastapi import APIRouter, Depends, HTTPException, status
from starlette.responses import FileResponse
from mealie.core.config import get_app_dirs
from mealie.core.dependencies import validate_file_token
router = APIRouter(prefix="/api/utils", tags=["Utils"], include_in_schema=True)
@router.get("/download")
async def download_file(file_path: Path = Depends(validate_file_token)):
"""Uses a file token obtained by an active user to retrieve a file from the operating
system."""
file_path = Path(file_path).resolve()
dirs = get_app_dirs()
if not file_path.is_relative_to(dirs.DATA_DIR):
raise HTTPException(status.HTTP_400_BAD_REQUEST)
if not file_path.is_file():
raise HTTPException(status.HTTP_400_BAD_REQUEST)
return FileResponse(file_path, media_type="application/octet-stream", filename=file_path.name)