view mod_block_strangers/mod_block_strangers.lua @ 2080:a435db77a5e5

mod_firewall: Silence warning about empty if branch [luacheck]
author Kim Alvefur <zash@zash.se>
date Fri, 11 Mar 2016 18:52:48 +0100
parents bd0c5d546bf8
children 09f6e1a09b2b
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local st = require"util.stanza";
local jid_split = require "util.jid".split;
local jid_bare = require "util.jid".bare;
local is_contact_subscribed = require "core.rostermanager".is_contact_subscribed;

function check_subscribed(event)
	local stanza = event.stanza;
	local to_user, to_host, to_resource = jid_split(stanza.attr.to);
	local from_jid = jid_bare(stanza.attr.from);
	if to_user and not is_contact_subscribed(to_user, to_host, from_jid) then
		if to_resource and stanza.attr.type == "groupchat"
		or stanza.name == "iq" and (stanza.attr.type == "result" or stanza.attr.type == "error") then
			return nil; -- Pass through
		end
		if stanza.name == "iq" and ( stanza.attr.type == "get" or stanza.attr.type == "set" ) then
			event.origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
		end
		return true; -- Drop stanza
	end
end

module:hook("message/bare", check_subscribed, 200);
module:hook("message/full", check_subscribed, 200);
module:hook("iq/full", check_subscribed, 200);