---
allOf:
  - $ref: core-event-schema/state_event.yaml
description: |
  A room may be `public` meaning anyone can join the room without any prior action.
  Alternatively, it can be `invite` meaning that a user who wishes to join the room
  must first receive an invite to the room from someone already inside of the room.
  `knock` means that users are able to ask for permission to join the room, where
  they are either allowed (invited) or denied (kicked/banned) access. Join rules
  of `knock` are otherwise the same as `invite`: the user needs an explicit invite
  to join the room.

  Currently, `private` is a reserved keyword which is not implemented.
properties:
  content:
    properties:
      join_rule:
        description: The type of rules used for users wishing to join this room.
        enum:
          - public
          - knock
          - invite
          - private
        type: string
    required:
      - join_rule
    type: object
  state_key:
    description: A zero-length string.
    pattern: '^$'
    type: string
  type:
    enum:
      - m.room.join_rules
    type: string
title: Describes how users are allowed to join the room.
type: object