Commit be31675b authored by Frédéric Mangano-Tarumi's avatar Frédéric Mangano-Tarumi Committed by Lukas Fleischer
Browse files

Guard OAuth exceptions to provide better messages

Signed-off-by: Lukas Fleischer's avatarLukas Fleischer <>
parent 5fb4fc12
......@@ -5,7 +5,7 @@ from urllib.parse import urlencode
import fastapi
from authlib.integrations.starlette_client import OAuth
from authlib.integrations.starlette_client import OAuth, OAuthError
from fastapi import Depends, HTTPException
from fastapi.responses import RedirectResponse
from sqlalchemy.sql import select
......@@ -95,8 +95,18 @@ async def authenticate(request: Request, conn=Depends(aurweb.db.connect)):
detail=_('The login form is currently disabled for your IP address, '
'probably due to sustained spam attacks. Sorry for the '
token = await oauth.sso.authorize_access_token(request)
user = await oauth.sso.parse_id_token(request, token)
except OAuthError:
# Here, most OAuth errors should be caused by forged or expired tokens.
# Let’s give attackers as little information as possible.
_ = get_translator_for_request(request)
raise HTTPException(
detail=_('Bad OAuth token. Please retry logging in from the start.'))
sub = user.get("sub") # this is the SSO account ID in JWT terminology
if not sub:
_ = get_translator_for_request(request)
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