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mod_block_strangers/mod_block_strangers.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 |
parent | 3023:38365c1f1fe4 |
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local st = require"util.stanza"; local jid_split = require "util.jid".split; local jid_bare = require "util.jid".bare; local is_contact_subscribed = require "core.rostermanager".is_contact_subscribed; local full_sessions = prosody.full_sessions; local function has_directed_presence(user, jid) local session = full_sessions[user]; if session then local directed = session.directed; if directed then return directed[jid]; end end end function check_subscribed(event) local stanza = event.stanza; local to_user, to_host, to_resource = jid_split(stanza.attr.to); local from_jid = jid_bare(stanza.attr.from); if to_user and not has_directed_presence(stanza.attr.to, from_jid) and not is_contact_subscribed(to_user, to_host, from_jid) then -- Allow all messages from your own jid if from_jid == to_user.."@"..to_host then return nil; -- Pass through end if to_resource and stanza.attr.type == "groupchat" or stanza.name == "iq" and (stanza.attr.type == "result" or stanza.attr.type == "error") then return nil; -- Pass through end if stanza.name == "iq" and ( stanza.attr.type == "get" or stanza.attr.type == "set" ) then event.origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); end return true; -- Drop stanza end end module:hook("message/bare", check_subscribed, 200); module:hook("message/full", check_subscribed, 200); module:hook("iq/full", check_subscribed, 200);