diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/handlers/_base.py | 51 |
1 files changed, 40 insertions, 11 deletions
diff --git a/synapse/handlers/_base.py b/synapse/handlers/_base.py index c77afe7f51..88d8b9ba54 100644 --- a/synapse/handlers/_base.py +++ b/synapse/handlers/_base.py @@ -37,6 +37,15 @@ VISIBILITY_PRIORITY = ( ) +MEMBERSHIP_PRIORITY = ( + Membership.JOIN, + Membership.INVITE, + Membership.KNOCK, + Membership.LEAVE, + Membership.BAN, +) + + class BaseHandler(object): """ Common base class for the event handlers. @@ -72,6 +81,7 @@ class BaseHandler(object): * the user is not currently a member of the room, and: * the user has not been a member of the room since the given events + events ([synapse.events.EventBase]): list of events to filter """ forgotten = yield defer.gatherResults([ self.store.who_forgot_in_room( @@ -86,6 +96,12 @@ class BaseHandler(object): ) def allowed(event, user_id, is_peeking): + """ + Args: + event (synapse.events.EventBase): event to check + user_id (str) + is_peeking (bool) + """ state = event_id_to_state[event.event_id] # get the room_visibility at the time of the event. @@ -117,17 +133,30 @@ class BaseHandler(object): if old_priority < new_priority: visibility = prev_visibility - # get the user's membership at the time of the event. (or rather, - # just *after* the event. Which means that people can see their - # own join events, but not (currently) their own leave events.) - membership_event = state.get((EventTypes.Member, user_id), None) - if membership_event: - if membership_event.event_id in event_id_forgotten: - membership = None - else: - membership = membership_event.membership - else: - membership = None + # likewise, if the event is the user's own membership event, use + # the 'most joined' membership + membership = None + if event.type == EventTypes.Member and event.state_key == user_id: + membership = event.content.get("membership", None) + if membership not in MEMBERSHIP_PRIORITY: + membership = "leave" + + prev_content = event.unsigned.get("prev_content", {}) + prev_membership = prev_content.get("membership", None) + if prev_membership not in MEMBERSHIP_PRIORITY: + prev_membership = "leave" + + new_priority = MEMBERSHIP_PRIORITY.index(membership) + old_priority = MEMBERSHIP_PRIORITY.index(prev_membership) + if old_priority < new_priority: + membership = prev_membership + + # otherwise, get the user's membership at the time of the event. + if membership is None: + membership_event = state.get((EventTypes.Member, user_id), None) + if membership_event: + if membership_event.event_id not in event_id_forgotten: + membership = membership_event.membership # if the user was a member of the room at the time of the event, # they can see it. |