diff --git a/synapse/api/auth.py b/synapse/api/auth.py
index 0bf35109cd..3d2b45d217 100644
--- a/synapse/api/auth.py
+++ b/synapse/api/auth.py
@@ -216,17 +216,20 @@ class Auth(object):
else:
ban_level = 50 # FIXME (erikj): What should we do here?
- if Membership.INVITE == membership:
- # TODO (erikj): We should probably handle this more intelligently
- # PRIVATE join rules.
-
- # Invites are valid iff caller is in the room and target isn't.
+ if Membership.JOIN != membership:
+ # JOIN is the only action you can perform if you're not in the room
if not caller_in_room: # caller isn't joined
raise AuthError(
403,
"%s not in room %s." % (event.user_id, event.room_id,)
)
- elif target_banned:
+
+ if Membership.INVITE == membership:
+ # TODO (erikj): We should probably handle this more intelligently
+ # PRIVATE join rules.
+
+ # Invites are valid iff caller is in the room and target isn't.
+ if target_banned:
raise AuthError(
403, "%s is banned from the room" % (target_user_id,)
)
@@ -252,13 +255,7 @@ class Auth(object):
raise AuthError(403, "You are not allowed to join this room")
elif Membership.LEAVE == membership:
# TODO (erikj): Implement kicks.
-
- if not caller_in_room: # trying to leave a room you aren't joined
- raise AuthError(
- 403,
- "%s not in room %s." % (target_user_id, event.room_id,)
- )
- elif target_banned and user_level < ban_level:
+ if target_banned and user_level < ban_level:
raise AuthError(
403, "You cannot unban user &s." % (target_user_id,)
)
@@ -493,7 +490,7 @@ class Auth(object):
send_level = send_level_event.content.get("events", {}).get(
event.type
)
- if not send_level:
+ if send_level is None:
if hasattr(event, "state_key"):
send_level = send_level_event.content.get(
"state_default", 50
|