util.xml: Deduplicate handlers for restricted XML
Makes the code more like util.xmppstream, allowing easier comparisons if
we ever need to apply fixes in the future.
local st = require "util.stanza";
local xmlns_csi = "urn:xmpp:csi:0";
local csi_feature = st.stanza("csi", { xmlns = xmlns_csi });
module:hook("stream-features", function (event)
if event.origin.username then
event.features:add_child(csi_feature);
end
end);
function refire_event(name)
return function (event)
if event.origin.username then
event.origin.state = event.stanza.name;
module:fire_event(name, event);
return true;
end
end;
end
module:hook("stanza/"..xmlns_csi..":active", refire_event("csi-client-active"));
module:hook("stanza/"..xmlns_csi..":inactive", refire_event("csi-client-inactive"));