Mercurial > prosody-modules
view mod_admin_blocklist/mod_admin_blocklist.lua @ 5461:06640647d193
mod_http_oauth2: Fix use of arbitrary ports in loopback redirect URIs
Per draft-ietf-oauth-v2-1-08#section-8.4.2
> The authorization server MUST allow any port to be specified at the
> time of the request for loopback IP redirect URIs, to accommodate
> clients that obtain an available ephemeral port from the operating
> system at the time of the request.
Uncertain if it should normalize the host part, but it also seems
harmless to treat IPv6 and IPv4 the same here.
One thing is that "localhost" is NOT RECOMMENDED because it can
sometimes be pointed to non-loopback interfaces via DNS or hosts file.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Wed, 17 May 2023 13:51:30 +0200 |
parents | 96e83b4a93f7 |
children |
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-- mod_admin_blocklist -- -- If a local admin has blocked a domain, don't allow s2s to that domain -- -- Copyright (C) 2015-2022 Kim Alvefur -- -- This file is MIT/X11 licensed. -- module:depends("blocklist"); local st = require"util.stanza"; local jid_split = require"util.jid".split; local usermanager = require "core.usermanager"; local admins; if usermanager.get_jids_with_role then local set = require "util.set"; local include_roles = module:get_option_set("admin_blocklist_roles", { "prosody:operator"; "prosody:admin" }); admins = set.new(); for role in include_roles do admins:include(set.new(usermanager.get_jids_with_role(role, module.host))); end else -- COMPAT w/pre-0.12 admins = module:get_option_inherited_set("admins", {}); end admins = 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);