Mercurial > prosody-modules
view mod_register_dnsbl_firewall_mark/mod_register_dnsbl_firewall_mark.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 | de40686ae9c8 |
children |
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local adns = require "net.adns"; local rbl = module:get_option_string("registration_rbl"); local rbl_message = module:get_option_string("registration_rbl_message"); local st = require "util.stanza"; local function cleanup_ip(ip) if ip:sub(1,7):lower() == "::ffff:" then return ip:sub(8); end return ip; end local function reverse(ip, suffix) local a,b,c,d = ip:match("^(%d+).(%d+).(%d+).(%d+)$"); if not a then return end return ("%d.%d.%d.%d.%s"):format(d,c,b,a, suffix); end module:hook("user-registered", function (event) local session = event.session; local ip = session and session.ip and cleanup_ip(session.ip); local rbl_ip = ip and reverse(ip, rbl); if rbl_ip then local registration_time = os.time(); local log = session.log; adns.lookup(function (reply) if reply and reply[1] then log("warn", "Account %s@%s registered from IP %s found in RBL (%s)", event.username, event.host or module.host, ip, reply[1].a); local user = prosody.bare_sessions[event.username .. "@" .. module.host]; if user and user.firewall_marks then user.firewall_marks.dnsbl_hit = registration_time; else module:open_store("firewall_marks", "map"):set(event.username, "dnsbl_hit", registration_time); end if rbl_message then module:log("debug", "Warning RBL registered user %s@%s", event.username, event.host); event.ip = ip; local rbl_stanza = st.message({ to = event.username.."@"..event.host, from = event.host }, rbl_message:gsub("$(%w+)", event)); module:send(rbl_stanza); end end end, rbl_ip); end end);