annotate mod_isr/mod_isr.lua @ 5354:39d59d857bfb

mod_http_oauth2: Use new mod_cron API for periodic cleanup Less frequent but this isn't that important after all since, as the comment states, expired codes are not usable anyway. They're also not that large so memory usage probably doesn't matter.
author Kim Alvefur <zash@zash.se>
date Sat, 22 Apr 2023 11:59:52 +0200
parents 1cb762f72a91
children
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1 local st = require "util.stanza";
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2
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3 local mod_smacks = module:depends("smacks");
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4
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5 local xmlns_sasl2 = "urn:xmpp:sasl:1";
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6 local xmlns_sm = "urn:xmpp:sm:3";
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7 local xmlns_isr = "https://xmpp.org/extensions/isr/0";
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8 local xmlns_errors = "urn:ietf:params:xml:ns:xmpp-stanzas";
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9
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10 module:hook_tag(xmlns_sasl2, "authenticate", function (session, auth)
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11 local isr_resume = auth:get_child("inst-resume", xmlns_isr);
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12 if not isr_resume then return end
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13 local is_using_token = isr_resume.attr["with-isr-token"] ~= "false";
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14 if is_using_token then
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15 -- TODO: If authing with token, set session.sasl_handler to our own
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16 -- event.session.sasl_handler = ...
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17 error("not yet implemented");
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18 end
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19
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20 -- Cache resume element for future processing after SASL success
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21 session.isr_sm_resume = isr_resume:get_child("resume", "urn:xmpp:sm:3");
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22 end, 100);
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23
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24 module:hook("sasl2/c2s/success", function (event)
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25 local session = event.session;
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26 local sm_resume = session.isr_sm_resume;
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27 if sm_resume then
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28 session.isr_sm_resume = nil;
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29 local resumed, err = mod_smacks.do_resume(session, sm_resume);
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30 if not resumed then
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31 local failed = st.stanza("failed", { xmlns = xmlns_sm, h = ("%d"):format(err.context.h) })
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32 :tag(err.condition, { xmlns = xmlns_errors });
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33 event.success:add_child(failed);
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34 else
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35 event.session = resumed.session;
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36 event.isr_resumed = resumed;
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37 event.success:tag("resumed", { xmlns = xmlns_sm,
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38 h = ("%d"):format(event.session.handled_stanza_count);
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39 previd = resumed.id; }):up();
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40 end
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41 end
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42 end, 100);
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43
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44 module:hook("sasl2/c2s/success", function (event)
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45 -- The authenticate response has already been sent at this point
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46 local resumed = event.isr_resumed;
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47 if resumed then
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48 resumed.finish(); -- Finish resume and sync stanzas
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49 end
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50 end, -1100);
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52 module:hook("sasl2/c2s/failure", function (event)
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53 event.session.isr_sm_resume = nil;
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54 end);
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55