1 files changed, 8 insertions, 1 deletions
diff --git a/synapse/api/auth.py b/synapse/api/auth.py
index 4a13f7e2e1..b9c3e6d2c4 100644
--- a/synapse/api/auth.py
+++ b/synapse/api/auth.py
@@ -207,6 +207,13 @@ class Auth(object):
                 user_id, room_id
             ))
 
+        if membership == Membership.LEAVE:
+            forgot = yield self.store.did_forget(user_id, room_id)
+            if forgot:
+                raise AuthError(403, "User %s not in room %s" % (
+                    user_id, room_id
+                ))
+
         defer.returnValue(member)
 
     @defer.inlineCallbacks
@@ -853,7 +860,7 @@ class Auth(object):
 
         redact_level = self._get_named_level(auth_events, "redact", 50)
 
-        if user_level > redact_level:
+        if user_level >= redact_level:
             return False
 
         redacter_domain = EventID.from_string(event.event_id).domain