Mercurial > prosody-modules
view mod_register_dnsbl_firewall_mark/mod_register_dnsbl_firewall_mark.lua @ 5536:96dec7681af8
mod_firewall: Update user marks to store instantly via map store
The original approach was to keep marks in memory only, and persist them at
shutdown. That saves I/O, at the cost of potentially losing marks on an
unclean shutdown.
This change persists marks instantly, which may have some performance overhead
but should be more "correct".
It also splits the marking/unmarking into an event which may be watched or
even fired by other modules.
author | Matthew Wild <mwild1@gmail.com> |
---|---|
date | Thu, 08 Jun 2023 16:20:42 +0100 |
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);