Continue moving content out of docs/model/presence into the main spec; delete model docs that are duplicated
Paul "LeoNerd" Evans
parent
a940a87ddc
commit
ee447abcad
|
|
@ -1,103 +1,3 @@
|
|||
========
|
||||
Presence
|
||||
========
|
||||
|
||||
A description of presence information and visibility between users.
|
||||
|
||||
Overview
|
||||
========
|
||||
|
||||
Each user has the concept of Presence information. This encodes a sense of the
|
||||
"availability" of that user, suitable for display on other user's clients.
|
||||
|
||||
|
||||
Presence Information
|
||||
====================
|
||||
|
||||
The basic piece of presence information is an enumeration of a small set of
|
||||
state; such as "free to chat", "online", "busy", or "offline". The default state
|
||||
unless the user changes it is "online". Lower states suggest some amount of
|
||||
decreased availability from normal, which might have some client-side effect
|
||||
like muting notification sounds and suggests to other users not to bother them
|
||||
unless it is urgent. Equally, the "free to chat" state exists to let the user
|
||||
announce their general willingness to receive messages moreso than default.
|
||||
|
||||
Home servers should also allow a user to set their state as "hidden" - a state
|
||||
which behaves as offline, but allows the user to see the client state anyway and
|
||||
generally interact with client features such as reading message history or
|
||||
accessing contacts in the address book.
|
||||
|
||||
This basic state field applies to the user as a whole, regardless of how many
|
||||
client devices they have connected. The home server should synchronise this
|
||||
status choice among multiple devices to ensure the user gets a consistent
|
||||
experience.
|
||||
|
||||
Idle Time
|
||||
---------
|
||||
|
||||
As well as the basic state field, the presence information can also show a sense
|
||||
of an "idle timer". This should be maintained individually by the user's
|
||||
clients, and the homeserver can take the highest reported time as that to
|
||||
report. Likely this should be presented in fairly coarse granularity; possibly
|
||||
being limited to letting the home server automatically switch from a "free to
|
||||
chat" or "online" mode into "idle".
|
||||
|
||||
When a user is offline, the Home Server can still report when the user was last
|
||||
seen online, again perhaps in a somewhat coarse manner.
|
||||
|
||||
Device Type
|
||||
-----------
|
||||
|
||||
Client devices that may limit the user experience somewhat (such as "mobile"
|
||||
devices with limited ability to type on a real keyboard or read large amounts of
|
||||
text) should report this to the home server, as this is also useful information
|
||||
to report as "presence" if the user cannot be expected to provide a good typed
|
||||
response to messages.
|
||||
|
||||
|
||||
Presence List
|
||||
=============
|
||||
|
||||
Each user's home server stores a "presence list" for that user. This stores a
|
||||
list of other user IDs the user has chosen to add to it (remembering any ACL
|
||||
Pointer if appropriate).
|
||||
|
||||
To be added to a contact list, the user being added must grant permission. Once
|
||||
granted, both user's HS(es) store this information, as it allows the user who
|
||||
has added the contact some more abilities; see below. Since such subscriptions
|
||||
are likely to be bidirectional, HSes may wish to automatically accept requests
|
||||
when a reverse subscription already exists.
|
||||
|
||||
As a convenience, presence lists should support the ability to collect users
|
||||
into groups, which could allow things like inviting the entire group to a new
|
||||
("ad-hoc") chat room, or easy interaction with the profile information ACL
|
||||
implementation of the HS.
|
||||
|
||||
|
||||
Presence and Permissions
|
||||
========================
|
||||
|
||||
For a viewing user to be allowed to see the presence information of a target
|
||||
user, either
|
||||
|
||||
* The target user has allowed the viewing user to add them to their presence
|
||||
list, or
|
||||
|
||||
* The two users share at least one room in common
|
||||
|
||||
In the latter case, this allows for clients to display some minimal sense of
|
||||
presence information in a user list for a room.
|
||||
|
||||
Home servers can also use the user's choice of presence state as a signal for
|
||||
how to handle new private one-to-one chat message requests. For example, it
|
||||
might decide:
|
||||
|
||||
"free to chat": accept anything
|
||||
"online": accept from anyone in my addres book list
|
||||
"busy": accept from anyone in this "important people" group in my address
|
||||
book list
|
||||
|
||||
|
||||
API Efficiency
|
||||
==============
|
||||
|
||||
|
|
|
|||
|
|
@ -18,3 +18,13 @@ a sense of an "idle timer". This should be maintained individually by the
|
|||
user's clients, and the home server can take the highest reported time as that
|
||||
to report. When a user is offline, the home server can still report when the
|
||||
user was last seen online.
|
||||
|
||||
Device Type
|
||||
-----------
|
||||
|
||||
Client devices that may limit the user experience somewhat (such as "mobile"
|
||||
devices with limited ability to type on a real keyboard or read large amounts of
|
||||
text) should report this to the home server, as this is also useful information
|
||||
to report as "presence" if the user cannot be expected to provide a good typed
|
||||
response to messages.
|
||||
|
||||
|
|
|
|||
|
|
@ -1527,6 +1527,15 @@ in the other direction will not). This timestamp is presented via a key called
|
|||
``last_active_ago``, which gives the relative number of miliseconds since the
|
||||
message is generated/emitted, that the user was last seen active.
|
||||
|
||||
Home servers can also use the user's choice of presence state as a signal for
|
||||
how to handle new private one-to-one chat message requests. For example, it
|
||||
might decide:
|
||||
|
||||
- ``free_for_chat`` : accept anything
|
||||
- ``online`` : accept from anyone in my addres book list
|
||||
- ``busy`` : accept from anyone in this "important people" group in my
|
||||
address book list
|
||||
|
||||
Transmission
|
||||
------------
|
||||
.. NOTE::
|
||||
|
|
@ -1545,6 +1554,11 @@ granted, both user's HS(es) store this information. Since such subscriptions
|
|||
are likely to be bidirectional, HSes may wish to automatically accept requests
|
||||
when a reverse subscription already exists.
|
||||
|
||||
As a convenience, presence lists should support the ability to collect users
|
||||
into groups, which could allow things like inviting the entire group to a new
|
||||
("ad-hoc") chat room, or easy interaction with the profile information ACL
|
||||
implementation of the HS.
|
||||
|
||||
Presence and Permissions
|
||||
------------------------
|
||||
For a viewing user to be allowed to see the presence information of a target
|
||||
|
|
|
|||
Loading…
Reference in New Issue