fix(auth): require Google authentication in cloud mode

Remove the public shared-key mechanism and fail closed on Google auth while adding submit-route throttling.
This commit is contained in:
Adam Moussa 2026-07-31 11:24:57 -04:00
parent 311eab35c0
commit 02700e8c8b
No known key found for this signature in database
2 changed files with 17 additions and 15 deletions

View file

@ -65,10 +65,6 @@ def _get_discount_settings() -> tuple[Decimal, Decimal]:
return _settings
def _get_admin_emails() -> set[str]:
return {email.lower() for email in get_settings().get("admin_emails", [])}
def _google_auth_configured() -> bool:
return bool(os.environ.get("GOOGLE_CLIENT_ID_PARAM", ""))
@ -151,10 +147,6 @@ def _verify_google_token(token: str) -> tuple[dict | None, str]:
return None, "invalid"
def _authentication_service_unavailable() -> dict:
return response(503, {"error": "Authentication service temporarily unavailable"})
def _verify_admin(event) -> tuple[dict | None, dict | None]:
"""Verify Google auth and admin access. Returns (user_info, error_response)."""
if not _google_auth_configured():
@ -171,11 +163,14 @@ def _verify_admin(event) -> tuple[dict | None, dict | None]:
user_info, status = _verify_google_token(token)
if status == "unavailable":
return None, _authentication_service_unavailable()
return None, response(
503, {"error": "Authentication service temporarily unavailable"}
)
if user_info is None:
return None, response(403, {"error": "Invalid or unauthorized Google account"})
if user_info["email"].lower() not in _get_admin_emails():
admin_emails = {e.lower() for e in get_settings().get("admin_emails", [])}
if user_info["email"].lower() not in admin_emails:
return None, response(403, {"error": "Admin access required"})
return user_info, None
@ -427,15 +422,21 @@ def handle_submit(event):
client_id = _get_google_client_id()
except Exception as exc:
logger.error("SSM fetch failed for Google client ID: %s", exc)
return _authentication_service_unavailable()
return response(
503, {"error": "Authentication service temporarily unavailable"}
)
if not client_id:
logger.error("Google client ID is unavailable")
return _authentication_service_unavailable()
return response(
503, {"error": "Authentication service temporarily unavailable"}
)
if not google_token:
return response(403, {"error": "Google authentication is required"})
user_info, verify_status = _verify_google_token(google_token)
if verify_status == "unavailable":
return _authentication_service_unavailable()
return response(
503, {"error": "Authentication service temporarily unavailable"}
)
if user_info is None:
return response(403, {"error": "Invalid or unauthorized Google account"})
name = user_info["name"]
@ -452,7 +453,8 @@ def handle_submit(event):
week = current_week()
status = get_form_status(week)
is_admin_user = email.lower() in _get_admin_emails()
admin_emails = {e.lower() for e in get_settings().get("admin_emails", [])}
is_admin_user = email.lower() in admin_emails
if status == "closed" and not is_admin_user:
return response(410, {"error": "Orders are closed for this week"})
if status == "not_found":

View file

@ -159,7 +159,7 @@ def main():
ssm = boto3.client("ssm")
resp = ssm.get_parameter(Name="/meal-order-manager/google-client-id")
google_client_id = resp["Parameter"]["Value"].strip()
google_client_id = resp["Parameter"]["Value"]
except Exception as exc:
parser.error(
"Google auth is required in cloud mode, but the Google client ID "