prosody-modules
08138de4cb88
mod_muc_room_mention_notifications/mod_muc_room_mention_notifications.lua

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mod_muc_room_mention_notifications/mod_muc_room_mention_notifications.lua @ 4296:08138de4cb88

Prosodoy module to externalize MUC authorization via HTTP
author Seve Ferrer <seve@delape.net>
date Sat, 12 Dec 2020 18:19:14 +0100
parent 4280:278f2998ce49
child 4305:2ca55a4da3ea
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4280
278f2998ce49 mod_muc_room_mention_notifications: Publish module
Seve Ferrer <seve@delape.net>
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1 local jid = require "util.jid";
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2 local st = require "util.stanza";
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3 local datetime = require "util.datetime";
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4
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5 local notify_unaffiliated_users = module:get_option("muc_rmn_notify_unaffiliated_users", false)
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6
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7 local muc_affiliation_store = module:open_store("config", "map");
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8
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9 local rmn_xmlns = "urn:xmpp:rmn:0";
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10 local reference_xmlns = "urn:xmpp:reference:0";
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11 local forwarded_xmlns = "urn:xmpp:forward:0";
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12 local deplay_xmlns = "urn:xmpp:delay";
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13
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14
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15 -- Returns a set of rooms the user is affiliated to
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16 local function get_user_rooms(user_bare_jid)
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17 return muc_affiliation_store:get_all(user_bare_jid);
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18 end
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19
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20 local function is_eligible(user_bare_jid, room)
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21 if notify_unaffiliated_users then return true; end
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22
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23 local user_rooms, err = get_user_rooms(user_bare_jid);
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24 if not user_rooms then
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25 if err then
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26 return false, err;
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27 end
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28 return false;
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29 end
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30
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31 local room_node = jid.node(room.jid)
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32 if user_rooms[room_node] then
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33 return true;
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34 end
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35
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36 return false
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37 end
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38
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39 -- Send a single notification for a room, updating data structures as needed
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40 local function send_single_notification(user_bare_jid, room_jid, mention_stanza)
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41 local notification = st.message({ to = user_bare_jid, from = module.host })
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42 :tag("mentions", { xmlns = rmn_xmlns })
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43 :tag("forwarded", {xmlns = forwarded_xmlns})
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44 :tag("delay", {xmlns = deplay_xmlns, stamp = datetime.datetime()}):up()
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45 :add_child(mention_stanza)
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46 :reset();
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47 module:log("debug", "Sending mention notification from %s to %s", room_jid, user_bare_jid);
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48 return module:send(notification);
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49 end
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50
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51 local function notify_mentioned_users(room, client_mentions, mention_stanza)
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52 module:log("debug", "NOTIFYING FOR %s", room.jid)
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53 for user_bare_jid in pairs(client_mentions) do
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54 if is_eligible(user_bare_jid, room) then
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55 send_single_notification(user_bare_jid, room.jid, mention_stanza);
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56 end
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57 end
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58 end
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59
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60 local function get_mentions(stanza)
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61 local has_mentions = false
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62 local client_mentions = {}
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63
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64 for element in stanza:childtags("reference", reference_xmlns) do
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65 if element.attr.type == "mention" then
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66 local user_bare_jid = element.attr.uri:match("^xmpp:(.+)$");
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67 if user_bare_jid then
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68 client_mentions[user_bare_jid] = user_bare_jid;
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69 has_mentions = true
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70 end
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71 end
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72 end
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73
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74 return has_mentions, client_mentions
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75 end
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76
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77 module:hook("muc-broadcast-message", function (event)
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78 local room, stanza = event.room, event.stanza;
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79 local body = stanza:get_child_text("body")
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80 if not body or #body < 1 then return; end
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81 local correction = stanza:get_child("replace", "urn:xmpp:message-correct:0");
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82 if correction then return; end -- Do not notify on message corrections
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83
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84 local has_mentions, client_mentions = get_mentions(stanza)
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85 if not has_mentions then return; end
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86
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87 -- Notify any users that need to be notified
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88 notify_mentioned_users(room, client_mentions, stanza);
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89 end, -1);