MFE-6 Use Redis to cache SAP responses

https://jira.usit.uio.no/browse/MFE-6

mfe_ms/backend/routes/dataporten.py

@@ -2,7 +2,7 @@ import json
 import logging
 from datetime import datetime, timedelta
 from http import HTTPStatus
-from typing import Callable, Optional, List, Iterable
+from typing import Callable, Optional, List, Iterable, Tuple
 from urllib.parse import urlencode
 
 import requests
@@ -13,6 +13,7 @@ from jose.jwt import get_unverified_claims
 from oauthlib.oauth2 import WebApplicationClient
 from pydantic import BaseModel, Field
 from starlette.authentication import AuthenticationBackend, BaseUser, AuthCredentials
+from starlette.requests import HTTPConnection
 from starlette.responses import RedirectResponse
 
 from mfe_ms.config import MFEConfig
@@ -87,8 +88,10 @@ def routes(config: MFEConfig, app: FastAPI, home: Callable):
             def display_name(self) -> str:
                 return self.name
 
-        async def authenticate(self, request: Request):
-            token = request.session.get("token")
+        async def authenticate(
+            self, conn: HTTPConnection
+        ) -> Optional[Tuple[AuthCredentials, BaseUser]]:
+            token = conn.session.get("token")
             if not token:
                 return
             try:
@@ -104,12 +107,14 @@ def routes(config: MFEConfig, app: FastAPI, home: Callable):
             except Exception as e:
                 logger.debug(e)
 
-            del request.session["token"]
+            del conn.session["token"]
 
     auth_backend = CurrentUserAuthBackend()
 
     def get_relevant_groups(access_token: str) -> List[str]:
         allowed = config.auth.allowed_groups
+        if not allowed:
+            return []
         res = requests.get(
             config.auth.dataporten.groups_endpoint,
             headers={"Authorization": f"Bearer {access_token}"},
@@ -124,7 +129,7 @@ def routes(config: MFEConfig, app: FastAPI, home: Callable):
             return True
         return bool(groups)
 
-    def is_allowed_by_id(ids: Iterable[id]) -> bool:
+    def is_allowed_by_id(ids: Iterable[str]) -> bool:
         allowed = config.auth.allowed_users
         if allowed is None:
             logger.info("`allowed_users` is None, accepting all")