Files
paskia/passkey/util/frontend.py
T

72 lines
2.3 KiB
Python

import asyncio
import mimetypes
import os
from importlib import resources
from pathlib import Path
import httpx
__all__ = ["path", "file", "read", "is_dev_mode"]
DEV_SERVER = "http://localhost:4403"
def _resolve_static_dir() -> Path:
# Try packaged path via importlib.resources (works for wheel/installed).
try: # pragma: no cover - trivial path resolution
pkg_dir = resources.files("passkey") / "frontend-build"
fs_path = Path(str(pkg_dir))
if fs_path.is_dir():
return fs_path
except Exception: # pragma: no cover - defensive
pass
# Fallback for editable/development before build.
return Path(__file__).parent.parent / "frontend-build"
path: Path = _resolve_static_dir()
def file(*parts: str) -> Path:
"""Return a child path under the static root."""
return path.joinpath(*parts)
def is_dev_mode() -> bool:
"""Check if we're running in dev mode (Vite frontend server)."""
return os.environ.get("PASSKEY_DEVMODE") == "1"
async def read(filepath: str) -> tuple[bytes, int, dict[str, str]]:
"""Read file content and return response tuple.
In dev mode, fetches from the Vite dev server.
In production, reads from the static build directory.
Args:
filepath: Path relative to frontend root, e.g. "/auth/index.html"
Returns:
Tuple of (content, status_code, headers) suitable for
FastAPI Response(*args) or Sanic raw response.
"""
if is_dev_mode():
async with httpx.AsyncClient() as client:
resp = await client.get(f"{DEV_SERVER}{filepath}")
resp.raise_for_status()
mime = resp.headers.get("content-type", "application/octet-stream")
# Strip charset suffix if present
mime = mime.split(";")[0].strip()
return resp.content, resp.status_code, {"content-type": mime}
else:
# Production: read from static build
file_path = path / filepath.lstrip("/")
content = await _read_file_async(file_path)
mime, _ = mimetypes.guess_type(str(file_path))
return content, 200, {"content-type": mime or "application/octet-stream"}
async def _read_file_async(file_path: Path) -> bytes:
"""Read file asynchronously using asyncio.to_thread."""
return await asyncio.to_thread(file_path.read_bytes)