prosody
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plugins/muc/presence_broadcast.lib.lua

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plugins/muc/presence_broadcast.lib.lua @ 10353:7b602e13c3b6

MUC: Add controls for whose presence is broadcast (closes #1335) Committed by Zash
author Lance Stout <lancestout@gmail.com>
date Sun, 20 Oct 2019 21:58:16 +0200
child 10516:d3e6941546a8
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10353
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 -- Copyright (C) 2014 Daurnimator
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5 --
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6 -- This project is MIT/X11 licensed. Please see the
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7 -- COPYING file in the source package for more information.
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8 --
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9
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10 local st = require "util.stanza";
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11
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12 local valid_roles = { "visitor", "participant", "moderator" };
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13 local default_broadcast = {
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14 none = true;
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15 visitor = true;
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16 participant = true;
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17 moderator = true;
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18 };
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19
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20 local function get_presence_broadcast(room)
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21 return room._data.presence_broadcast or default_broadcast;
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22 end
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23
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24 local function set_presence_broadcast(room, broadcast_roles)
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25 broadcast_roles = broadcast_roles or default_broadcast;
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26
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27 -- Ensure that unavailable presence is always sent when role changes to none
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28 broadcast_roles.none = true;
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29
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30 local changed = false;
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31 local old_broadcast_roles = get_presence_broadcast(room);
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32 for _, role in ipairs(valid_roles) do
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33 if old_broadcast_roles[role] ~= broadcast_roles[role] then
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34 changed = true;
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35 end
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36 end
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37
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38 if not changed then return false; end
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39
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40 room._data.presence_broadcast = broadcast_roles;
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41
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42 for _, occupant in room:each_occupant() do
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43 local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user";});
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44 local role = occupant.role or "none";
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45 if broadcast_roles[role] and not old_broadcast_roles[role] then
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46 -- Presence broadcast is now enabled, so announce existing user
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47 room:publicise_occupant_status(occupant, x);
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48 elseif old_broadcast_roles[role] and not broadcast_roles[role] then
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49 -- Presence broadcast is now disabled, so mark existing user as unavailable
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50 room:publicise_occupant_status(occupant, x, nil, nil, nil, nil, true);
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51 end
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52 end
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53
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54 return true;
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55 end
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56
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57 module:hook("muc-config-form", function(event)
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58 local values = {};
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59 for role, value in pairs(get_presence_broadcast(event.room)) do
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60 if value then
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61 values[#values + 1] = role;
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62 end
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63 end
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64
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65 table.insert(event.form, {
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66 name = "muc#roomconfig_presencebroadcast";
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67 type = "list-multi";
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68 label = "Roles for which Presence is Broadcasted";
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69 value = values;
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70 options = valid_roles;
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71 });
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72 end, 70-7);
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73
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74 module:hook("muc-config-submitted/muc#roomconfig_presencebroadcast", function(event)
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75 local broadcast_roles = {};
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76 for _, role in ipairs(event.value) do
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77 broadcast_roles[role] = true;
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78 end
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79 if set_presence_broadcast(event.room, broadcast_roles) then
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80 event.status_codes["104"] = true;
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81 end
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82 end);
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83
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84 return {
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85 get = get_presence_broadcast;
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86 set = set_presence_broadcast;
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87 };