Merge branch 'master' into daniel/continuservconcurrency
Conflicts: scripts/continuserv/main.gopull/977/head
Daniel Wagner-Hall
9 years ago
commit
c3608b3a69
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swagger: '2.0'
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info:
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title: "Matrix Client-Server v1 Sync Guest API"
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version: "1.0.0"
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host: localhost:8008
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schemes:
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- https
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- http
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basePath: /_matrix/client/api/v1
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consumes:
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- application/json
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produces:
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- application/json
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securityDefinitions:
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accessToken:
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type: apiKey
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description: The user_id or application service access_token
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name: access_token
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in: query
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paths:
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"/events":
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get:
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summary: Listen on the event stream.
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description: |-
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This will listen for new events related to a particular room and return
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them to the caller. This will block until an event is received, or until
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the ``timeout`` is reached.
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This API is the same as the non-guest /events endpoint, but can be
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called by guest users.
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security:
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- accessToken: []
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parameters:
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- in: query
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type: string
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name: from
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description: |-
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The token to stream from. This token is either from a previous
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request to this API or from the initial sync API.
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required: false
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x-example: "s3456_9_0"
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- in: query
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type: integer
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name: timeout
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description: The maximum time in milliseconds to wait for an event.
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required: false
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x-example: "35000"
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- in: query
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type: array
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items:
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type: string
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name: room_id
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description: |-
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The room IDs for which events should be returned.
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x-example:
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- "!somewhere:over"
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- "!the:rainbow"
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responses:
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200:
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description: "The events received, which may be none."
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examples:
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application/json: |-
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{
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"start": "s3456_9_0",
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"end": "s3457_9_0",
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"chunk": [
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{
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"age": 32,
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"content": {
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"body": "incoming message",
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"msgtype": "m.text"
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},
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"event_id": "$14328055551tzaee:localhost",
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"origin_server_ts": 1432804485886,
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"room_id": "!TmaZBKYIFrIPVGoUYp:localhost",
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"type": "m.room.message",
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"user_id": "@bob:localhost"
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}
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]
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}
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schema:
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type: object
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properties:
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start:
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type: string
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description: |-
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A token which correlates to the first value in ``chunk``. This
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is usually the same token supplied to ``from=``.
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end:
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type: string
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description: |-
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A token which correlates to the last value in ``chunk``. This
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token should be used in the next request to ``/events``.
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chunk:
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type: array
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description: "An array of events."
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items:
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type: object
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title: Event
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allOf:
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- "$ref": "core-event-schema/room_event.json"
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400:
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description: "Bad pagination ``from`` parameter."
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@ -0,0 +1,12 @@
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{
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"age": 242353,
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"content": {
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"guest_access": "can_join"
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},
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"state_key": "",
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"origin_server_ts": 1431961217938,
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"event_id": "$WLGTSEFSEG:localhost",
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"type": "m.room.guest_access",
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"room_id": "!Cuyf34gef24u:localhost",
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"user_id": "@example:localhost"
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}
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@ -0,0 +1,30 @@
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{
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"type": "object",
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"title": "Controls whether guest users are allowed to join rooms.",
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"description": "This event controls whether guest users are allowed to join rooms. If this event is absent, servers should act as if it is present and has the guest_access value \"forbidden\".",
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"allOf": [{
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"$ref": "core-event-schema/state_event.json"
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}],
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"properties": {
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"content": {
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"type": "object",
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"properties": {
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"guest_access": {
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"type": "string",
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"description": "Whether guests can join the room.",
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"enum": ["can_join", "forbidden"]
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}
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},
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"required": ["guest_access"]
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},
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"state_key": {
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"type": "string",
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"description": "A zero-length string.",
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"pattern": "^$"
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},
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"type": {
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"type": "string",
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"enum": ["m.room.guest_access"]
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}
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}
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}
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@ -0,0 +1,81 @@
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Guest access
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============
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.. _module:guest-access:
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There are times when it is desirable for clients to be able to interact with
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rooms without having to fully register for an account on a homeserver or join
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the room. This module specifies how these clients should interact with servers
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in order to participate in rooms as guests.
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Guest users retrieve access tokens from a homeserver using the ordinary
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`register endpoint <#post-matrix-client-api-v2-alpha-register>`_, specifying
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the ``kind`` parameter as ``guest``. They may then interact with the
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client-server API as any other user would, but will only have access to a subset
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of the API as described the Client behaviour subsection below.
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Homeservers may choose not to allow this access at all to their local users, but
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have no information about whether users on other homeservers are guests or not.
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This module does not fully factor in federation; it relies on individual
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homeservers properly adhering to the rules set out in this module, rather than
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allowing all homeservers to enforce the rules on each other.
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Events
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------
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{{m_room_guest_access_event}}
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Client behaviour
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----------------
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The following API endpoints are allowed to be accessed by guest accounts for
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retrieving events:
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* `GET /rooms/:room_id/state <#get-matrix-client-api-v1-rooms-roomid-state>`_
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* `GET /rooms/:room_id/state/:event_type/:state_key <#get-matrix-client-api-v1-rooms-roomid-state-eventtype-statekey>`_
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* `GET /rooms/:room_id/messages <#get-matrix-client-api-v1-rooms-roomid-messages>`_
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There is also a special version of the
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`GET /events <#get-matrix-client-api-v1-events>`_ endpoint:
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{{guest_events_http_api}}
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They will only return events which happened while the room state had the
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``m.room.history_visibility`` state event present with ``history_visibility``
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value ``world_readable``. Guest clients do not need to join rooms in order to
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receive events for them.
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The following API endpoints are allowed to be accessed by guest accounts for
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sending events:
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* `POST /rooms/:room_id/join <#post-matrix-client-api-v1-rooms-roomid-join>`_
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* `PUT /rooms/:room_id/send/m.room.message/:txn_id <#put-matrix-client-api-v1-rooms-roomid-send-eventtype-txnid>`_
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Guest clients *do* need to join rooms in order to send events to them.
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Server behaviour
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----------------
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Servers are required to only return events to guest accounts for rooms where
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the room state at the event had the ``m.room.history_visibility`` state event
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present with ``history_visibility`` value ``world_readable``. These events may
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be returned even if the anonymous user is not joined to the room.
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Servers MUST only allow guest users to join rooms if the ``m.room.guest_access``
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state event is present on the room, and has the ``guest_access`` value
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``can_join``. If the ``m.room.guest_access`` event is changed to stop this from
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being the case, the server MUST set those users' ``m.room.member`` state to
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``leave``.
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Security considerations
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-----------------------
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Each homeserver manages its own guest accounts itself, and whether an account
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is a guest account or not is not information passed from server to server.
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Accordingly, any server participating in a room is trusted to properly enforce
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the permissions outlined in this section.
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Clients may wish to display to their users that rooms which are
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``world_readable`` *may* be showing messages to non-joined users. There is no
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way using this module to find out whether any non-joined guest users *do* see
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events in the room, or to list or count any guest users.
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Homeservers may want to enable protections such as captchas for guest
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registration to prevent spam, denial of service, and similar attacks.
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