prosody-modules
cc665f343690
mod_register_dnsbl_warn/mod_register_dnsbl_warn.lua

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mod_register_dnsbl_warn/mod_register_dnsbl_warn.lua @ 6057:cc665f343690

mod_firewall: SUBSCRIBED: Flip subscription check to match documentation The documentation claims that this condition checks whether the recipient is subscribed to the sender. However, it was using the wrong method, and actually checking whether the sender was subscribed to the recipient. A quick poll of folk suggested that the documentation's approach is the right one, so this should fix the code to match the documentation. This should also fix the bundled anti-spam rules from blocking presence from JIDs that you subscribe do (but don't have a mutual subscription with).
author Matthew Wild <mwild1@gmail.com>
date Fri, 22 Nov 2024 13:50:48 +0000
parent 3993:76036fa34055
line wrap: on
line source

local adns = require "net.adns";
local rbl = module:get_option_string("registration_rbl");

local function reverse(ip, suffix)
	if ip:sub(1,7):lower() == "::ffff:" then
		ip = ip:sub(8);
	end
	local a,b,c,d = ip:match("^(%d+).(%d+).(%d+).(%d+)$");
	if not a then return end
	return ("%d.%d.%d.%d.%s"):format(d,c,b,a, suffix);
end

-- TODO async
-- module:hook("user-registering", function (event) end);

module:hook("user-registered", function (event)
	local session = event.session;
	local ip = session and session.ip;
	local rbl_ip = ip and reverse(ip, rbl);
	if rbl_ip then
		local log = session.log;
		adns.lookup(function (reply)
			if reply and reply[1] then
				log("warn", "Account %s@%s registered from IP %s found in RBL (%s)", event.username, event.host or module.host, ip, reply[1].a);
			end
		end, rbl_ip);
	end
end);