1 files changed, 13 insertions, 2 deletions
diff --git a/synapse/api/auth.py b/synapse/api/auth.py
index 0c6c93a87b..79e2808dc5 100644
--- a/synapse/api/auth.py
+++ b/synapse/api/auth.py
@@ -184,11 +184,22 @@ class Auth(object):
         return event_auth.get_public_keys(invite_event)
 
     @defer.inlineCallbacks
-    def get_user_by_req(self, request, allow_guest=False, rights="access"):
+    def get_user_by_req(
+        self,
+        request,
+        allow_guest=False,
+        rights="access",
+        allow_expired=False,
+    ):
         """ Get a registered user's ID.
 
         Args:
             request - An HTTP request with an access_token query parameter.
+            allow_expired - Whether to allow the request through even if the account is
+                expired. If true, Synapse will still require an access token to be
+                provided but won't check if the account it belongs to has expired. This
+                works thanks to /login delivering access tokens regardless of accounts'
+                expiration.
         Returns:
             defer.Deferred: resolves to a ``synapse.types.Requester`` object
         Raises:
@@ -229,7 +240,7 @@ class Auth(object):
             is_guest = user_info["is_guest"]
 
             # Deny the request if the user account has expired.
-            if self._account_validity.enabled:
+            if self._account_validity.enabled and not allow_expired:
                 user_id = user.to_string()
                 expiration_ts = yield self.store.get_expiration_ts_for_user(user_id)
                 if expiration_ts is not None and self.clock.time_msec() >= expiration_ts: