60 lines
2.4 KiB
Python

from pathlib import Path
from fastapi import Cookie, HTTPException, Request, Response
from fastapi.responses import RedirectResponse
from ..authsession import expires, get_session
from ..globals import db
from ..globals import passkey as global_passkey
from ..util import passphrase, tokens
from . import session
# Local copy to avoid circular import with mainapp
STATIC_DIR = Path(__file__).parent.parent / "frontend-build"
def register_reset_routes(app):
"""Register all device addition/reset routes on the FastAPI app."""
@app.post("/auth/create-link")
async def api_create_link(request: Request, response: Response, auth=Cookie(None)):
"""Create a device addition link for the authenticated user."""
# Require authentication
s = await get_session(auth)
# Generate a human-readable token
token = passphrase.generate() # e.g., "cross.rotate.yin.note.evoke"
await db.instance.create_session(
user_uuid=s.user_uuid,
key=tokens.reset_key(token),
expires=expires(),
info=session.infodict(request, "device addition"),
)
# Generate the device addition link with pretty URL using configured origin
origin = global_passkey.instance.origin.rstrip("/")
path = request.url.path.removesuffix("create-link") + token # /auth/<token>
url = f"{origin}{path}"
return {
"message": "Registration link generated successfully",
"url": url,
"expires": expires().isoformat(),
}
@app.get("/auth/{reset_token}")
async def reset_authentication(request: Request, reset_token: str):
"""Validate reset token and redirect with it as query parameter (no cookies).
After validation we 303 redirect to /auth/?reset=<token>. The frontend will:
- Read the token from location.search
- Use it via Authorization header or websocket query param
- history.replaceState to remove it from the address bar/history
"""
if not passphrase.is_well_formed(reset_token):
raise HTTPException(status_code=404)
origin = global_passkey.instance.origin
# Do not verify existence/expiry here; frontend + user-info endpoint will handle invalid tokens.
redirect_url = f"{origin}/auth/?reset={reset_token}"
return RedirectResponse(url=redirect_url, status_code=303)