Mercurial > prosody-modules
view mod_srvinjection/mod_srvinjection.lua @ 5616:59d5fc50f602
mod_http_oauth2: Implement refresh token rotation
Makes refresh tokens one-time-use, handing out a new refresh token with
each access token. Thus if a refresh token is stolen and used by an
attacker, the next time the legitimate client tries to use the previous
refresh token, it will not work and the attack will be noticed. If the
attacker does not use the refresh token, it becomes invalid after the
legitimate client uses it.
This behavior is recommended by draft-ietf-oauth-security-topics
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 23 Jul 2023 02:56:08 +0200 |
parents | 47fb4f36dacd |
children |
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module:set_global(); local adns = require "net.adns"; local map_config = module:get_option("srvinjection") or {}; local map = module:shared "s2s_map" for host, mapping in pairs(map_config) do if type(mapping) == "table" and type(mapping[1]) == "string" and (type(mapping[2]) == "number") then local connecthost, connectport = mapping[1], mapping[2] or 5269; map[host] = {{ srv = { target = connecthost.."."; port = connectport; priority = 1; weight = 0; }; }}; else module:log("warn", "Ignoring invalid SRV injection for host '%s'", host); map[host] = nil; end end local original_lookup = adns.lookup; function adns.lookup(handler, qname, qtype, qclass) if qtype == "SRV" then local host = qname:match("^_xmpp%-server%._tcp%.(.*)%.$"); local mapping = map[host] or map["*"]; if mapping then handler(mapping); return; end elseif qtype == "A" then if (qname == "localhost." or qname == "127.0.0.1.") then handler({{ a = "127.0.0.1" }}); return; end local ip = qname:match("^(%d+.%d+.%d+.%d+).$"); if ip then handler({{ a = ip }}); return; end end return original_lookup(handler, qname, qtype, qclass); end function module.unload() adns.lookup = original_lookup; end