From 52423607bddf6c1bae5dbc89fb2c94496ad70fde Mon Sep 17 00:00:00 2001 From: Richard van der Hoff Date: Thu, 14 Jun 2018 12:26:17 +0100 Subject: [PATCH] Clarify interface for event_auth stop pretending that it returns a boolean, which just almost gave me a heart attack. --- synapse/event_auth.py | 34 ++++++++++++++++------------------ 1 file changed, 16 insertions(+), 18 deletions(-) diff --git a/synapse/event_auth.py b/synapse/event_auth.py index 138175a55..36a48870a 100644 --- a/synapse/event_auth.py +++ b/synapse/event_auth.py @@ -34,9 +34,11 @@ def check(event, auth_events, do_sig_check=True, do_size_check=True): event: the event being checked. auth_events (dict: event-key -> event): the existing room state. + Raises: + AuthError if the checks fail Returns: - True if the auth checks pass. + if the auth checks pass. """ if do_size_check: _check_size_limits(event) @@ -71,7 +73,7 @@ def check(event, auth_events, do_sig_check=True, do_size_check=True): # Oh, we don't know what the state of the room was, so we # are trusting that this is allowed (at least for now) logger.warn("Trusting event: %s", event.event_id) - return True + return if event.type == EventTypes.Create: room_id_domain = get_domain_from_id(event.room_id) @@ -81,7 +83,8 @@ def check(event, auth_events, do_sig_check=True, do_size_check=True): "Creation event's room_id domain does not match sender's" ) # FIXME - return True + logger.debug("Allowing! %s", event) + return creation_event = auth_events.get((EventTypes.Create, ""), None) @@ -118,7 +121,8 @@ def check(event, auth_events, do_sig_check=True, do_size_check=True): 403, "Alias event's state_key does not match sender's domain" ) - return True + logger.debug("Allowing! %s", event) + return if logger.isEnabledFor(logging.DEBUG): logger.debug( @@ -127,14 +131,9 @@ def check(event, auth_events, do_sig_check=True, do_size_check=True): ) if event.type == EventTypes.Member: - allowed = _is_membership_change_allowed( - event, auth_events - ) - if allowed: - logger.debug("Allowing! %s", event) - else: - logger.debug("Denying! %s", event) - return allowed + _is_membership_change_allowed(event, auth_events) + logger.debug("Allowing! %s", event) + return _check_event_sender_in_room(event, auth_events) @@ -153,7 +152,8 @@ def check(event, auth_events, do_sig_check=True, do_size_check=True): ) ) else: - return True + logger.debug("Allowing! %s", event) + return _can_send_event(event, auth_events) @@ -200,7 +200,7 @@ def _is_membership_change_allowed(event, auth_events): create = auth_events.get(key) if create and event.prev_events[0][0] == create.event_id: if create.content["creator"] == event.state_key: - return True + return target_user_id = event.state_key @@ -265,13 +265,13 @@ def _is_membership_change_allowed(event, auth_events): raise AuthError( 403, "%s is banned from the room" % (target_user_id,) ) - return True + return if Membership.JOIN != membership: if (caller_invited and Membership.LEAVE == membership and target_user_id == event.user_id): - return True + return if not caller_in_room: # caller isn't joined raise AuthError( @@ -334,8 +334,6 @@ def _is_membership_change_allowed(event, auth_events): else: raise AuthError(500, "Unknown membership %s" % membership) - return True - def _check_event_sender_in_room(event, auth_events): key = (EventTypes.Member, event.user_id, )