plugins/muc/affiliation_notify.lib.lua

   1 -- Prosody IM
   2 -- Copyright (C) 2014 Daurnimator
   3 --
   4 -- This project is MIT/X11 licensed. Please see the
   5 -- COPYING file in the source package for more information.
   6 --
   7
   8 --[[
   9 Out of courtesy, a MUC service MAY send an out-of-room <message/>
  10 if a user's affiliation changes while the user is not in the room;
  11 the message SHOULD be sent from the room to the user's bare JID,
  12 MAY contain a <body/> element describing the affiliation change,
  13 and MUST contain a status code of 101.
  14 ]]
  15
  16
  17 local st = require "util.stanza";
  18
  19 local function get_affiliation_notify(room)
  20         return room._data.affiliation_notify;
  21 end
  22
  23 local function set_affiliation_notify(room, affiliation_notify)
  24         affiliation_notify = affiliation_notify and true or nil;
  25         if room._data.affiliation_notify == affiliation_notify then return false; end
  26         room._data.affiliation_notify = affiliation_notify;
  27         return true;
  28 end
  29
  30 module:hook("muc-config-form", function(event)
  31         table.insert(event.form, {
  32                 name = "muc#roomconfig_affiliationnotify";
  33                 type = "boolean";
  34                 label = "Notify users when their affiliation changes when they are not in the room?";
  35                 value = get_affiliation_notify(event.room);
  36         });
  37 end);
  38
  39 module:hook("muc-config-submitted/muc#roomconfig_affiliationnotify", function(event)
  40         if set_affiliation_notify(event.room, event.value) then
  41                 event.status_codes["104"] = true;
  42         end
  43 end);
  44
  45 module:hook("muc-set-affiliation", function(event)
  46         local room = event.room;
  47         if not event.in_room and get_affiliation_notify(room) then
  48                 local body = string.format("Your affiliation in room %s is now %s.", room.jid, event.affiliation);
  49                 local stanza = st.message({
  50                                 type = "headline";
  51                                 from = room.jid;
  52                                 to = event.jid;
  53                         }, body)
  54                         :tag("x", {xmlns = "http://jabber.org/protocol/muc#user"})
  55                                 :tag("status", {code="101"}):up()
  56                         :up();
  57                 room:route_stanza(stanza);
  58         end
  59 end);
  60
  61 return {
  62         get = get_affiliation_notify;
  63         set = set_affiliation_notify;
  64 };