Mercurial > prosody-modules
annotate mod_muc_mention_notifications/mod_muc_mention_notifications.lua @ 5567:d52cc18f0aa8
mod_muc_limits: Add a limit on number of bytes in a message body
author | Kim Alvefur <zash@zash.se> |
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date | Sun, 25 Jun 2023 00:00:02 +0200 |
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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 local jid_resource = require "util.jid".resource; |
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5 |
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6 local notify_unaffiliated_users = module:get_option("muc_mmn_notify_unaffiliated_users", false) |
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7 |
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8 local muc_affiliation_store = module:open_store("config", "map"); |
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9 |
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10 local mmn_xmlns = "urn:xmpp:mmn:0"; |
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11 local reference_xmlns = "urn:xmpp:reference:0"; |
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12 local forwarded_xmlns = "urn:xmpp:forward:0"; |
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13 local deplay_xmlns = "urn:xmpp:delay"; |
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14 |
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15 |
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16 -- Returns a set of rooms the user is affiliated to |
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17 local function get_user_rooms(user_bare_jid) |
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18 return muc_affiliation_store:get_all(user_bare_jid); |
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19 end |
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20 |
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21 local function is_eligible(user_bare_jid, room) |
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22 if notify_unaffiliated_users then return true; end |
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23 |
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24 local user_rooms, err = get_user_rooms(user_bare_jid); |
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25 if not user_rooms then |
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26 if err then |
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27 return false, err; |
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28 end |
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29 return false; |
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30 end |
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31 |
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32 local room_node = jid.node(room.jid) |
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33 if user_rooms[room_node] then |
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34 return true; |
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35 end |
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36 |
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37 return false |
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38 end |
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39 |
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40 -- Send a single notification for a room, updating data structures as needed |
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41 local function send_single_notification(user_bare_jid, room_jid, mention_stanza) |
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42 local notification = st.message({ to = user_bare_jid, from = room_jid }) |
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43 :tag("mentions", { xmlns = mmn_xmlns }) |
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44 :tag("forwarded", {xmlns = forwarded_xmlns}) |
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45 :tag("delay", {xmlns = deplay_xmlns, stamp = datetime.datetime()}):up() |
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46 :add_child(mention_stanza) |
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47 :reset(); |
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48 module:log("debug", "Sending mention notification from %s to %s", room_jid, user_bare_jid); |
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49 return module:send(notification); |
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50 end |
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51 |
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52 local function notify_mentioned_users(room, client_mentions, mention_stanza) |
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53 module:log("debug", "NOTIFYING FOR %s", room.jid) |
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54 for mentioned_jid in pairs(client_mentions) do |
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55 local user_bare_jid = mentioned_jid; |
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56 if (string.match(mentioned_jid, room.jid)) then |
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57 local nick = jid_resource(mentioned_jid); |
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58 user_bare_jid = room:get_registered_jid(nick); |
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59 end |
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60 if is_eligible(user_bare_jid, room) then |
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61 send_single_notification(user_bare_jid, room.jid, mention_stanza); |
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62 end |
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63 end |
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64 end |
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65 |
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66 local function get_mentions(stanza) |
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67 local has_mentions = false |
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68 local client_mentions = {} |
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69 |
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70 for element in stanza:childtags("reference", reference_xmlns) do |
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71 if element.attr.type == "mention" then |
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72 local user_bare_jid = element.attr.uri:match("^xmpp:(.+)$"); |
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73 if user_bare_jid then |
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74 client_mentions[user_bare_jid] = user_bare_jid; |
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75 has_mentions = true |
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76 end |
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77 end |
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78 end |
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79 |
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80 return has_mentions, client_mentions |
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81 end |
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82 |
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83 module:hook("muc-broadcast-message", function (event) |
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84 local room, stanza = event.room, event.stanza; |
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85 local body = stanza:get_child_text("body") |
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86 if not body or #body < 1 then return; end |
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87 local correction = stanza:get_child("replace", "urn:xmpp:message-correct:0"); |
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88 if correction then return; end -- Do not notify on message corrections |
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89 |
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90 local has_mentions, client_mentions = get_mentions(stanza) |
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91 if not has_mentions then return; end |
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92 |
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93 -- Notify any users that need to be notified |
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94 notify_mentioned_users(room, client_mentions, stanza); |
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95 end, -1); |