prosody-modules
aaa6f412dce3
mod_bind2/mod_bind2.lua

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mod_bind2/mod_bind2.lua @ 4793:aaa6f412dce3

mod_bind2: Experimental implementation of XEP-0386: Bind 2.0 Needless to say, completely untested
author Kim Alvefur <zash@zash.se>
date Sun, 28 Nov 2021 19:45:25 +0100
child 4794:d17a1581ea30
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4793
aaa6f412dce3 mod_bind2: Experimental implementation of XEP-0386: Bind 2.0
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1 local mm = require "core.modulemanager";
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2 local sm = require "core.sessionmanager";
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3
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4 local xmlns_bind2 --[[<const>]] = "urn:xmpp:bind2:0";
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5 local xmlns_carbons --[[<const>]] = "urn:xmpp:carbons:2";
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6
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7 module:depends("sasl2");
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8 module:depends("carbons");
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9
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10 module:hook_tag(xmlns_sasl2, "authenticate", function (session, auth)
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11 session.bind2 = auth:get_child("bind", xmlns_bind2);
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12 end, 1);
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13
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14 module:hook("sasl2/c2s/success", function (event)
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15 local session = event.session;
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16 if not session.bind2 then return end
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17
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18 -- When it receives a bind 2.0 on an authenticated not-yet-bound session, the
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19 -- server MUST:
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20
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21 -- Clear the offline messages for this user, if any, without sending them (as
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22 -- they will be provided by MAM).
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23 if mm.is_loaded(module.host, "offline") then
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24 -- TODO
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25 end
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26
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27 -- Perform resource binding to a random resource (see 6120)
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28 if not sm.bind_resource(session, nil) then
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29 -- FIXME How should this be handled even?
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30 session:close("reset");
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31 return true;
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32 end
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33
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34 -- Work out which contacts have unread messages in the user's MAM archive,
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35 -- how many, and what the id of the last read message is
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36 -- XXX How do we know what the last read message was?
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37 -- TODO archive:summary(session.username, { after = ??? });
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38
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39 -- Get the id of the newest stanza in the user's MAM archive
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40 -- TODO archive:find(session.username, { reverse = true, limit = 1 });
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41
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42 -- Silently enable carbons for this session
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43 session.carbons = xmlns_carbons;
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44
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45 -- After processing the bind stanza, as above, the server MUST respond with
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46 -- an element of type 'bound' in the namespace 'urn:xmpp:bind2:0', as in the
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47 -- below example
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48 event.success:tag("bound", xmlns_bind2):text_tag("jid", session.full_jid):up();
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49
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50 session.bind2 = nil;
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51 end);