File

mod_unsubscriber/mod_unsubscriber.lua @ 5168:e00dc913d965

mod_unsubscriber: Revoke roster subscriptions of unreachable hosts Wrote a version of this long ago, but it was lost to time. Here it is again, from scratch!
author Kim Alvefur <zash@zash.se>
date Sun, 19 Feb 2023 17:39:04 +0100
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assert(module:get_host_type() == "component", "This module should be loaded as a Component");

local st = require "util.stanza";

module:hook("presence/bare", function(event)
	local origin, stanza = event.origin, event.stanza;
	if stanza.attr.type == "probe" then
		-- they are subscribed and want our current presence
		-- tell them we denied their subscription
		local reply = st.reply(stanza)
		reply.attr.type = "unsubcribed";
		origin.send(reply);
		return true;
	elseif stanza.attr.type == nil then
		-- they think we are subscribed and sent their current presence
		-- tell them we unsubscribe
		local reply = st.reply(stanza)
		reply.attr.type = "unsubcribe";
		origin.send(reply);
		return true;
	end
	-- fall trough to default error
end);