File

mod_admin_blocklist/mod_admin_blocklist.lua @ 4268:871d140d61bb

mod_adhoc_oauth2_client: Fix including final client_id in result form The client_id is composed of the details needed for retrieving the data, making it redundant to include in the data, albeit somewhat convenient sometimes. Decided to remove it anyways, but forgot to change the result.
author Kim Alvefur <zash@zash.se>
date Sun, 22 Nov 2020 17:00:26 +0100
parent 2313:5d05139d0555
child 4805:683d1ad16b56
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-- mod_admin_blocklist
--
-- If a local admin has blocked a domain, don't allow s2s to that domain
--
-- Copyright (C) 2015 Kim Alvefur
--
-- This file is MIT/X11 licensed.
--

module:depends("blocklist");

local st = require"util.stanza";
local jid_split = require"util.jid".split;

local admins = module:get_option_inherited_set("admins", {}) /
	function (admin) -- Filter out non-local admins
		local user, host = jid_split(admin);
		if host == module.host then return user; end
	end

local blocklists = module:open_store("blocklist");

local function is_blocked(host)
	for admin in admins do
		local blocklist = blocklists:get(admin);
		if blocklist and blocklist[host] then
			return true;
		end
	end
end

module:hook("route/remote", function (event)
	local origin, stanza = event.origin, event.stanza;
	if is_blocked(event.to_host) then
		if origin and stanza then
			origin.send(st.error_reply(stanza, "cancel", "not-allowed", "Communication with this domain is not allowed"));
			return true;
		end
		return false;
	end
end, -9);


module:hook("s2s-stream-features", function (event)
	local session = event.origin;
	if is_blocked(session.from_host) then
		session:close("policy-violation");
		return false;
	end
end, 1000);

module:hook("stanza/http://etherx.jabber.org/streams:features", function (event)
	local session = event.origin;
	if is_blocked(session.to_host) then
		session:close("policy-violation");
		return true;
	end
end, 1000);