annotate mod_atom/mod_atom.lua @ 5243:d5dc8edb2695

mod_http_oauth2: Use more compact IDs UUIDs are nice but so verbose! The reduction in entropy for the nonce should be fine since the timestamp is also counts towards this, and it changes every second (modulo clock shenanigans), so the chances of someone managing to get the same client_secret by registering with the same information at the same time as another entity should be negligible.
author Kim Alvefur <zash@zash.se>
date Sat, 11 Mar 2023 22:46:27 +0100
parents 5dd505c39c4b
children
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1 -- HTTP Access to PEP -> microblog
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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 });