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-rw-r--r--plugins/muc/presence_broadcast.lib.lua83
1 files changed, 83 insertions, 0 deletions
diff --git a/plugins/muc/presence_broadcast.lib.lua b/plugins/muc/presence_broadcast.lib.lua
new file mode 100644
index 00000000..82a89fee
--- /dev/null
+++ b/plugins/muc/presence_broadcast.lib.lua
@@ -0,0 +1,83 @@
+-- Prosody IM
+-- Copyright (C) 2008-2010 Matthew Wild
+-- Copyright (C) 2008-2010 Waqas Hussain
+-- Copyright (C) 2014 Daurnimator
+--
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+
+local st = require "util.stanza";
+
+local valid_roles = { "none", "visitor", "participant", "moderator" };
+local default_broadcast = {
+ visitor = true;
+ participant = true;
+ moderator = true;
+};
+
+local function get_presence_broadcast(room)
+ return room._data.presence_broadcast or default_broadcast;
+end
+
+local function set_presence_broadcast(room, broadcast_roles)
+ broadcast_roles = broadcast_roles or default_broadcast;
+
+ local changed = false;
+ local old_broadcast_roles = get_presence_broadcast(room);
+ for _, role in ipairs(valid_roles) do
+ if old_broadcast_roles[role] ~= broadcast_roles[role] then
+ changed = true;
+ end
+ end
+
+ if not changed then return false; end
+
+ room._data.presence_broadcast = broadcast_roles;
+
+ for _, occupant in room:each_occupant() do
+ local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user";});
+ local role = occupant.role or "none";
+ if broadcast_roles[role] and not old_broadcast_roles[role] then
+ -- Presence broadcast is now enabled, so announce existing user
+ room:publicise_occupant_status(occupant, x);
+ elseif old_broadcast_roles[role] and not broadcast_roles[role] then
+ -- Presence broadcast is now disabled, so mark existing user as unavailable
+ room:publicise_occupant_status(occupant, x, nil, nil, nil, nil, true);
+ end
+ end
+
+ return true;
+end
+
+module:hook("muc-config-form", function(event)
+ local values = {};
+ for role, value in pairs(get_presence_broadcast(event.room)) do
+ if value then
+ values[#values + 1] = role;
+ end
+ end
+
+ table.insert(event.form, {
+ name = "muc#roomconfig_presencebroadcast";
+ type = "list-multi";
+ label = "Only show participants with roles:";
+ value = values;
+ options = valid_roles;
+ });
+end, 70-7);
+
+module:hook("muc-config-submitted/muc#roomconfig_presencebroadcast", function(event)
+ local broadcast_roles = {};
+ for _, role in ipairs(event.value) do
+ broadcast_roles[role] = true;
+ end
+ if set_presence_broadcast(event.room, broadcast_roles) then
+ event.status_codes["104"] = true;
+ end
+end);
+
+return {
+ get = get_presence_broadcast;
+ set = set_presence_broadcast;
+};