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local st = require "prosody.util.stanza";
local muc_util = module:require "muc/util";
local hats_compat = module:get_option_boolean("muc_hats_compat", true); -- COMPAT for pre-XEP namespace, TODO reconsider default for next release
local xmlns_hats_legacy = "xmpp:prosody.im/protocol/hats:1";
local xmlns_hats = "urn:xmpp:hats:0";
-- Strip any hats claimed by the client (to prevent spoofing)
muc_util.add_filtered_namespace(xmlns_hats);
module:hook("muc-build-occupant-presence", function (event)
local bare_jid = event.occupant and event.occupant.bare_jid or event.bare_jid;
local aff_data = event.room:get_affiliation_data(bare_jid);
local hats = aff_data and aff_data.hats;
if not hats then return; end
local hats_el;
local legacy_hats_el;
for hat_id, hat_data in pairs(hats) do
if hat_data.active then
if not hats_el then
hats_el = st.stanza("hats", { xmlns = xmlns_hats });
end
hats_el:tag("hat", { uri = hat_id, title = hat_data.title }):up();
if hats_compat then
if not legacy_hats_el then
legacy_hats_el = st.stanza("hats", { xmlns = xmlns_hats_legacy });
end
legacy_hats_el:tag("hat", { uri = hat_id, title = hat_data.title }):up();
end
end
end
if not hats_el then return; end
event.stanza:add_direct_child(hats_el);
if legacy_hats_el then
event.stanza:add_direct_child(legacy_hats_el);
end
end);
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