annotate mod_atom/mod_atom.lua @ 4936:a85efae90e21

mod_rest: Expand mapping of XEP-0045 join stanza The previous 'join' mapping was apparently lost in translation when swithing to datamapper, so might as well map some properties allowing history control. Usually you probably want either zero history or history since the last known time of being joined. Maybe that the former should be the default?
author Kim Alvefur <zash@zash.se>
date Sat, 30 Apr 2022 01:00:01 +0200
parents 5dd505c39c4b
children
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4915b8223b07 mod_atom: Expose Microbloging PEP data over HTTP
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1 -- HTTP Access to PEP -> microblog
4915b8223b07 mod_atom: Expose Microbloging PEP data over HTTP
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2 -- By Kim Alvefur <zash@zash.se>
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3
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4 local mod_pep = module:depends"pep";
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5
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6 local um = require "core.usermanager";
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7 local nodeprep = require "util.encodings".stringprep.nodeprep;
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8 local st = require "util.stanza";
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9 local urlencode = require "util.http".urlencode;
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10
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11 module:depends("http")
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12 module:provides("http", {
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13 route = {
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14 ["GET /*"] = function (event, user)
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15 if user == "" then
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16 return [[<h1>Hello from mod_atom</h1><p>This module provides access to public microblogs of local users.</p>]];
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17 end;
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18
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19 local request, response = event.request, event.response;
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20 local actor = request.ip;
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21
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22 local prepped = nodeprep(user);
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23 if not prepped then return 400; end
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24 if prepped ~= user then
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25 response.headers.location = module:http_url() .. "/" .. urlencode(prepped);
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26 return 302;
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27 end
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28 if not um.user_exists(user, module.host) then
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29 return 404;
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30 end
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31
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32 local pubsub_service = mod_pep.get_pep_service(user);
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33 local ok, items = pubsub_service:get_items("urn:xmpp:microblog:0", actor);
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34 if ok then
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35 response.headers.content_type = "application/xml";
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36 local feed = st.stanza("feed", { xmlns = "http://www.w3.org/2005/Atom" })
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37 :text_tag("generator", "Prosody", { uri = "xmpp:prosody.im", version = prosody.version })
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38 :text_tag("title", pubsub_service.nodes["urn:xmpp:microblog:0"].config.title or "Microblog feed")
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39 :text_tag("subtitle", pubsub_service.nodes["urn:xmpp:microblog:0"].config.description)
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40 :tag("author")
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41 :text_tag("name", user)
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42 :text_tag("preferredUsername", user, { xmlns = "http://portablecontacts.net/spec/1.0" });
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43 local ok, _, nick = pubsub_service:get_last_item("http://jabber.org/protocol/nick", actor);
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44 if ok and nick then
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45 feed:text_tag("displayName", nick.tags[1][1], { xmlns = "http://portablecontacts.net/spec/1.0" });
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46 end
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47
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48 feed:reset();
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49
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50 for i = #items, 1, -1 do
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51 feed:add_direct_child(items[items[i]].tags[1]);
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52 end
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53 return tostring(feed);
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54 elseif items == "forbidden" then
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55 return 403;
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56 elseif items == "item-not-found" then
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57 return 404;
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58 end
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59 end;
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60 }
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61 });