annotate plugins/mod_vcard4.lua @ 12115:94de6b7596cc

mod_tombstones: Remember deleted accounts #1307 Presence subscriptions are normally revoked on account deletion, which informs the contact. Sometimes this notification gets lost e.g. due to s2s problems. The accounts JID may also be present e.g. in MUC affiliations, chat group member lists, pubsub subscriptions or other systems. These may grant privileges which would fall to someone who creates the same account again, which this module is meant to prevent.
author Kim Alvefur <zash@zash.se>
date Thu, 23 Dec 2021 14:08:20 +0100
parents c4b49939b471
children 74b9e05af71e
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1 local st = require "util.stanza"
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2 local jid_split = require "util.jid".split;
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4 local mod_pep = module:depends("pep");
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6 module:hook("account-disco-info", function (event)
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7 event.reply:tag("feature", { var = "urn:ietf:params:xml:ns:vcard-4.0" }):up();
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8 end);
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10 module:hook("iq-get/bare/urn:ietf:params:xml:ns:vcard-4.0:vcard", function (event)
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11 local origin, stanza = event.origin, event.stanza;
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13 local pep_service = mod_pep.get_pep_service(jid_split(stanza.attr.to) or origin.username);
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14 local ok, id, item = pep_service:get_last_item("urn:xmpp:vcard4", stanza.attr.from);
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15 if ok and item then
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16 origin.send(st.reply(stanza):add_child(item.tags[1]));
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17 elseif id == "item-not-found" or not id then
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18 origin.send(st.error_reply(stanza, "cancel", "item-not-found"));
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19 elseif id == "forbidden" then
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20 origin.send(st.error_reply(stanza, "auth", "forbidden"));
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21 else
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22 origin.send(st.error_reply(stanza, "modify", "undefined-condition"));
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23 end
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24 return true;
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25 end);
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27 module:hook("iq-set/self/urn:ietf:params:xml:ns:vcard-4.0:vcard", function (event)
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28 local origin, stanza = event.origin, event.stanza;
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30 local vcard4 = st.stanza("item", { xmlns = "http://jabber.org/protocol/pubsub", id = "current" })
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31 :add_child(stanza.tags[1]);
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33 local pep_service = mod_pep.get_pep_service(origin.username);
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35 local ok, err = pep_service:publish("urn:xmpp:vcard4", origin.full_jid, "current", vcard4);
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36 if ok then
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37 origin.send(st.reply(stanza));
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38 elseif err == "forbidden" then
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39 origin.send(st.error_reply(stanza, "auth", "forbidden"));
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40 else
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41 origin.send(st.error_reply(stanza, "modify", "undefined-condition", err));
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42 end
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43 return true;
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44 end);
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