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mod_bind2/mod_bind2.lua @ 4941:e7b9bc629ecc
mod_rest: Add special handling to catch MAM results from remote hosts
Makes MAM queries to remote hosts works.
As the comment says, MAM results from users' local archives or local
MUCs are returned via origin.send() which is provided in the event and
thus already worked. Results from remote hosts go via normal stanza
routing and events, which need this extra handling to catch.
This pattern of iq-set, message+, iq-result is generally limited to MAM.
Closest similar thing might be MUC join, but to really handle that you
would need the webhook callback mechanism.
author | Kim Alvefur <zash@zash.se> |
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date | Mon, 16 May 2022 19:47:09 +0200 |
parent | 4797:1539ae696613 |
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local mm = require "core.modulemanager"; local sm = require "core.sessionmanager"; local xmlns_sasl2 --[[<const>]] = "urn:xmpp:sasl:1"; local xmlns_bind2 --[[<const>]] = "urn:xmpp:bind2:0"; local xmlns_carbons --[[<const>]] = "urn:xmpp:carbons:2"; module:depends("sasl2"); module:depends("carbons"); module:hook("stream-features", function(event) local origin, features = event.origin, event.features; if origin.type ~= "c2s_unauthed" then return end features:tag("bind", xmlns_bind2):up(); end); module:hook_tag(xmlns_sasl2, "authenticate", function (session, auth) session.bind2 = auth:get_child("bind", xmlns_bind2); end, 1); module:hook("sasl2/c2s/success", function (event) local session = event.session; if not session.bind2 then return end -- When it receives a bind 2.0 on an authenticated not-yet-bound session, the -- server MUST: -- Clear the offline messages for this user, if any, without sending them (as -- they will be provided by MAM). if mm.is_loaded(module.host, "offline") then -- luacheck: ignore 542 -- TODO end -- Perform resource binding to a random resource (see 6120) if not sm.bind_resource(session, nil) then -- FIXME How should this be handled even? session:close("reset"); return true; end -- Work out which contacts have unread messages in the user's MAM archive, -- how many, and what the id of the last read message is -- XXX How do we know what the last read message was? -- TODO archive:summary(session.username, { after = ??? }); -- Get the id of the newest stanza in the user's MAM archive -- TODO archive:find(session.username, { reverse = true, limit = 1 }); -- Silently enable carbons for this session session.carbons = xmlns_carbons; -- After processing the bind stanza, as above, the server MUST respond with -- an element of type 'bound' in the namespace 'urn:xmpp:bind2:0', as in the -- below example event.success:tag("bound", xmlns_bind2):text_tag("jid", session.full_jid):up(); session.bind2 = nil; end);