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Clarify that state_default is *not* zero by default

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Richard van der Hoff 2023-03-31 09:21:30 +01:00
parent 4a90545e3d
commit a31427f4ed
2 changed files with 5 additions and 14 deletions
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1
changelogs/client_server/1479.clarification Normal file
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@ -0,0 +1 @@
Remove outdated text saying that `state_default` is 0 if there is no `m.room.power_levels` event in a room.

18
data/event-schemas/schema/m.room.power_levels.yaml
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@ -18,11 +18,10 @@ description: |-
`events_default` for Message Events and `state_default` for State
Events.
If there is no `state_default` in the `m.room.power_levels` event, the
`state_default` is 50. If there is no `events_default` in the
`m.room.power_levels` event, the `events_default` is 0. If the room
contains no `m.room.power_levels` event, *both* the `state_default` and
`events_default` are 0.
If there is no `state_default` in the `m.room.power_levels` event, or
there is no `m.room.power_levels` event, the `state_default` is 50.
If there is no `events_default` in the `m.room.power_levels` event,
or there is no `m.room.power_levels` event, the `events_default` is 0.
The power level required to invite a user to the room, kick a user from the
room, ban a user from the room, or redact an event sent by another user, is
@ -33,15 +32,6 @@ description: |-
**Note:**
As noted above, in the absence of an `m.room.power_levels` event, the
`state_default` is 0, and all users are considered to have power level 0.
That means that **any** member of the room can send an
`m.room.power_levels` event, changing the permissions in the room.
Server implementations should therefore ensure that each room has an
`m.room.power_levels` event as soon as it is created. See also the
documentation of the `/createRoom` API.
The allowed range for power level values is `[-(2**53)+1, (2**53)-1]`,
as required by the [Canonical JSON specification](/appendices/#canonical-json).