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-rw-r--r--plugins/muc/hats.lib.lua23
1 files changed, 23 insertions, 0 deletions
diff --git a/plugins/muc/hats.lib.lua b/plugins/muc/hats.lib.lua
new file mode 100644
index 00000000..5b0429b5
--- /dev/null
+++ b/plugins/muc/hats.lib.lua
@@ -0,0 +1,23 @@
+local st = require "util.stanza";
+
+local xmlns_hats = "xmpp:prosody.im/protocol/hats:1";
+
+module:hook("muc-broadcast-presence", function (event)
+ -- Strip any hats claimed by the client (to prevent spoofing)
+ event.stanza:remove_children("hats", xmlns_hats);
+
+ local aff_data = event.room:get_affiliation_data(event.occupant.bare_jid);
+ local hats = aff_data and aff_data.hats;
+ if not hats then return; end
+ local 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();
+ end
+ end
+ if not hats_el then return; end
+ event.stanza:add_direct_child(hats_el);
+end);