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restrict PLs in old room

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This commit is contained in:
Richard van der Hoff 2018-10-24 23:14:36 +01:00
parent 3a263bf3ae
commit e6babc27d5
1 changed files with 43 additions and 1 deletions
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44
synapse/handlers/room.py
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@ -136,7 +136,49 @@ class RoomCreationHandler(BaseHandler):
requester, tombstone_event, tombstone_context,
)
# XXX send a power_levels in the old room, if possible
# ... and restrict the PLs in the old room, if possible.
old_room_pl_state = yield self.state_handler.get_current_state(
old_room_id,
event_type=EventTypes.PowerLevels,
latest_event_ids=(tombstone_event.event_id, ),
)
if old_room_pl_state is None:
logger.warning(
"Not supported: upgrading a room with no PL event. Not setting PLs "
"in old room.",
)
else:
pl_content = dict(old_room_pl_state.content)
users_default = int(pl_content.get("users_default", 0))
restricted_level = max(users_default + 1, 50)
updated = False
for v in ("invite", "events_default"):
current = int(pl_content.get(v, 0))
if current < restricted_level:
logger.debug(
"Setting level for %s in %s to %i (was %i)",
v, old_room_id, restricted_level, current,
)
pl_content[v] = restricted_level
updated = True
else:
logger.debug(
"Not setting level for %s (already %i)",
v, current,
)
if updated:
yield self.event_creation_handler.create_and_send_nonmember_event(
requester, {
"type": EventTypes.PowerLevels,
"state_key": '',
"room_id": old_room_id,
"sender": user_id,
"content": pl_content,
}, ratelimit=False,
)
defer.returnValue(new_room_id)