56 lines
2.3 KiB
Markdown
56 lines
2.3 KiB
Markdown
# Remove references to presence lists
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[Presence](https://matrix.org/docs/spec/client_server/r0.4.0.html#id107) lists
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allow a given user the ability to subscribe to other users and be alerted to
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their current presence status.
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While spec'd, no established client has implemented support and the only server
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side implementation raises privacy concerns.
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The proposal is to simply remove references to presence lists with a view to
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revisiting the same ideas in the future.
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This MSC addresses
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[#1810](https://github.com/matrix-org/matrix-doc/issues/1810)
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## Proposal
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Presence lists seem like a good fit for ['MSC1769: Extensible profiles as
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rooms'](https://github.com/matrix-org/matrix-doc/pull/1769) proposal, meaning
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that the current design will most likely be superseded.
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Additionally, no major client has implemented the behaviour to date and the
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only server implementation of presence lists (Synapse) auto-accepts invites
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leading to privacy concerns in the wild.
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With this in mind the most pragmatic solution is to remove presence lists ahead
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of the r0 release.
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Specifically:-
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CS API: Remove
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* [POST
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/_matrix/client/r0/presence/list/{userId}](https://matrix.org/docs/spec/client_server/r0.4.0.html#post-matrix-client-r0-presence-list-userid)
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* [GET
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/_matrix/client/r0/presence/list/{userId}](https://matrix.org/docs/spec/client_server/r0.4.0.html#get-matrix-client-r0-presence-list-userid)
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SS API: Remove
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* [m.presence_invite](https://github.com/matrix-org/matrix-doc/blob/8b65da1cf6fce5f657a2a46b5c6c8bcc24d32ae3/api/server-server/definitions/event-schemas/m.presence_invite.yaml)
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* [m.presence_accept](https://github.com/matrix-org/matrix-doc/blob/8b65da1cf6fce5f657a2a46b5c6c8bcc24d32ae3/api/server-server/definitions/event-schemas/m.presence_accept.yaml)
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* [m.presence_deny](https://github.com/matrix-org/matrix-doc/blob/8b65da1cf6fce5f657a2a46b5c6c8bcc24d32ae3/api/server-server/definitions/event-schemas/m.presence_deny.yaml)
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## Tradeoffs
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Ideally this proposal would also come with an alternative design for this
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functionality. Out of pragmatism the proposal only covers removal of what is
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there today.
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## Conclusions
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This is a common sense attempt to remove unused portions of the spec ahead of
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an r0 release. It does not suggest that the ability to subscribe to the
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presence of others is undesirable and assumes that this behaviour will return
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again in some form.
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