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annotate mod_minimix/README.markdown @ 4300:3f3b672b7616

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mod_vcard_muc: Pass room object around instead of JID, hopefully fixing traceback More efficient to pass the object around instead of using the JID and looking up the object when needed. It seems in some (undetermined) cases get_room_from_jid(room.jid) is nil.
author Matthew Wild <mwild1@gmail.com>
date Tue, 15 Dec 2020 10:49:11 +0000
parents 92b4a1d72d73
children 3aab4e3ab06f
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1 Account based MUC joining
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2 =========================
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3
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4 Normally when joining a MUC groupchat, it is each individual client that
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5 joins. This means their presence in the group is tied to the session,
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6 which can be short-lived or unstable, especially in the case of mobile
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7 clients.
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8
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9 This has a few problems. For one, for every message to the groupchat, a
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10 copy is sent to each joined client. This means that at the account
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11 level, each message would pass by once for each client that is joined,
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12 making it difficult to archive these messages in the users personal
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13 archive.
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14
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15 A potentially better approach would be that the user account itself is
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16 the entity that joins the groupchat. Since the account is an entity that
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17 lives in the server itself, and the server tends to be online on a good
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18 connection most of the time, this may improve the experience and
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19 simplify some problems.
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20
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21 This is one of the essential changes in the MIX architecture, which is
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22 being designed to replace MUC.
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23
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24 `mod_minimix` is an experiment meant to determine if things can be
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25 improved without replacing the entire MUC standard. It works by
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26 pretending to each client that nothing is different and that they are
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27 joining MUCs directly, but behind the scenes, it arranges it such that
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28 only the account itself joins each groupchat. Which sessions have joined
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29 which groups are kept track of. Groupchat messages are then forked to
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30 those sessions, similar to how normal chat messages work.
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31
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32 Known issues
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33 ------------
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35 - You can never leave.
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36 - You will never see anyone leave.
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37 - Being kicked is not handled.
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39 Unknown issues
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40 --------------
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42 - Probably many.
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43
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44 Compatibility
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45 =============
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46
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47 Briefly tested with Prosody trunk (as of this writing).