view mod_ipcheck/mod_ipcheck.lua @ 5491:7842502c1157

mod_http_debug: Log some extended info about requests If you point something external at this module, you don't get the response body back, hence it can be useful to see some details in the log as well.
author Kim Alvefur <zash@zash.se>
date Fri, 26 May 2023 15:37:15 +0200
parents b0628bc93acf
children
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-- mod_ipcheck.lua
-- Implementation of XEP-0279: Server IP Check <http://xmpp.org/extensions/xep-0279.html>

local st = require "util.stanza";

module:add_feature("urn:xmpp:sic:0");

module:hook("iq-get/bare/urn:xmpp:sic:0:ip", function(event)
	local origin, stanza = event.origin, event.stanza;
	if stanza.attr.to then
		origin.send(st.error_reply(stanza, "auth", "forbidden", "You can only ask about your own IP address"));
	elseif origin.ip then
		origin.send(st.reply(stanza):tag("ip", {xmlns='urn:xmpp:sic:0'}):text(origin.ip));
	else
		-- IP addresses should normally be available, but in case they are not
		origin.send(st.error_reply(stanza, "cancel", "service-unavailable", "IP address for this session is not available"));
	end
	return true;
end);

module:add_feature("urn:xmpp:sic:1");

module:hook("iq-get/bare/urn:xmpp:sic:1:address", function(event)
	local origin, stanza = event.origin, event.stanza;
	if stanza.attr.to then
		origin.send(st.error_reply(stanza, "auth", "forbidden", "You can only ask about your own IP address"));
	elseif origin.ip then
		local reply = st.reply(stanza):tag("address", {xmlns='urn:xmpp:sic:1'})
			:tag("ip"):text(origin.ip):up()
		if origin.conn and origin.conn.port then -- server_event
			reply:tag("port"):text(tostring(origin.conn:port()))
		elseif origin.conn and origin.conn.clientport then -- server_select
			reply:tag("port"):text(tostring(origin.conn:clientport()))
		end
		origin.send(reply);
	else
		-- IP addresses should normally be available, but in case they are not
		origin.send(st.error_reply(stanza, "cancel", "service-unavailable", "IP address for this session is not available"));
	end
	return true;
end);