view mod_admin_blocklist/mod_admin_blocklist.lua @ 3492:f59334da6df9

mod_conversejs: Show fallback text if converse.js fails to load (thanks MattJ) This can happen if javascript is enabled but 3rd party resources are blocked, or some other error happened.
author Kim Alvefur <zash@zash.se>
date Tue, 19 Mar 2019 19:43:13 +0100
parents 5d05139d0555
children 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);