Merge pull request #4099 from matrix-org/rav/upgrade_odd_pls
Better handling of odd PLs during room upgrades
This commit is contained in:
Richard van der Hoff
GitHub
commit
56ca578f77
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@ -0,0 +1 @@
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Support for replacing rooms with new ones
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@ -136,53 +136,91 @@ class RoomCreationHandler(BaseHandler):
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requester, tombstone_event, tombstone_context,
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)
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# and finally, shut down the PLs in the old room, and update them in the new
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# room.
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old_room_state = yield tombstone_context.get_current_state_ids(self.store)
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old_room_pl_event_id = old_room_state.get((EventTypes.PowerLevels, ""))
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if old_room_pl_event_id is None:
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logger.warning(
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"Not supported: upgrading a room with no PL event. Not setting PLs "
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"in old room.",
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yield self._update_upgraded_room_pls(
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requester, old_room_id, new_room_id, old_room_state,
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)
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defer.returnValue(new_room_id)
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@defer.inlineCallbacks
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def _update_upgraded_room_pls(
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self, requester, old_room_id, new_room_id, old_room_state,
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):
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"""Send updated power levels in both rooms after an upgrade
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Args:
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requester (synapse.types.Requester): the user requesting the upgrade
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old_room_id (unicode): the id of the room to be replaced
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new_room_id (unicode): the id of the replacement room
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old_room_state (dict[tuple[str, str], str]): the state map for the old room
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Returns:
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Deferred
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"""
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old_room_pl_event_id = old_room_state.get((EventTypes.PowerLevels, ""))
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if old_room_pl_event_id is None:
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logger.warning(
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"Not supported: upgrading a room with no PL event. Not setting PLs "
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"in old room.",
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)
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return
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old_room_pl_state = yield self.store.get_event(old_room_pl_event_id)
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# we try to stop regular users from speaking by setting the PL required
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# to send regular events and invites to 'Moderator' level. That's normally
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# 50, but if the default PL in a room is 50 or more, then we set the
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# required PL above that.
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pl_content = dict(old_room_pl_state.content)
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users_default = int(pl_content.get("users_default", 0))
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restricted_level = max(users_default + 1, 50)
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updated = False
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for v in ("invite", "events_default"):
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current = int(pl_content.get(v, 0))
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if current < restricted_level:
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logger.info(
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"Setting level for %s in %s to %i (was %i)",
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v, old_room_id, restricted_level, current,
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)
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pl_content[v] = restricted_level
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updated = True
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else:
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# we try to stop regular users from speaking by setting the PL required
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# to send regular events and invites to 'Moderator' level. That's normally
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# 50, but if the default PL in a room is 50 or more, then we set the
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# required PL above that.
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logger.info(
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"Not setting level for %s (already %i)",
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v, current,
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)
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old_room_pl_state = yield self.store.get_event(old_room_pl_event_id)
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pl_content = dict(old_room_pl_state.content)
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users_default = int(pl_content.get("users_default", 0))
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restricted_level = max(users_default + 1, 50)
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if updated:
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try:
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yield self.event_creation_handler.create_and_send_nonmember_event(
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requester, {
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"type": EventTypes.PowerLevels,
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"state_key": '',
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"room_id": old_room_id,
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"sender": requester.user.to_string(),
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"content": pl_content,
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}, ratelimit=False,
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)
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except AuthError as e:
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logger.warning("Unable to update PLs in old room: %s", e)
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updated = False
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for v in ("invite", "events_default"):
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current = int(pl_content.get(v, 0))
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if current < restricted_level:
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logger.debug(
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"Setting level for %s in %s to %i (was %i)",
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v, old_room_id, restricted_level, current,
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)
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pl_content[v] = restricted_level
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updated = True
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else:
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logger.debug(
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"Not setting level for %s (already %i)",
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v, current,
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)
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if updated:
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yield self.event_creation_handler.create_and_send_nonmember_event(
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requester, {
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"type": EventTypes.PowerLevels,
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"state_key": '',
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"room_id": old_room_id,
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"sender": user_id,
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"content": pl_content,
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}, ratelimit=False,
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)
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defer.returnValue(new_room_id)
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logger.info("Setting correct PLs in new room")
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yield self.event_creation_handler.create_and_send_nonmember_event(
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requester, {
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"type": EventTypes.PowerLevels,
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"state_key": '',
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"room_id": new_room_id,
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"sender": requester.user.to_string(),
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"content": old_room_pl_state.content,
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}, ratelimit=False,
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)
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@defer.inlineCallbacks
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def clone_exiting_room(
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@ -223,7 +261,6 @@ class RoomCreationHandler(BaseHandler):
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initial_state = dict()
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types_to_copy = (
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(EventTypes.PowerLevels, ""),
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(EventTypes.JoinRules, ""),
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(EventTypes.Name, ""),
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(EventTypes.Topic, ""),
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