Mercurial > prosody-modules
view mod_srvinjection/mod_srvinjection.lua @ 5296:0f5657db1cfc
mod_isolate_host: handle server-generated stanzas
The hook for setting the no_host_isolation is only called for c2s
sessions. This does not work for stanzas generated by the server,
such as PEP notifications or presence probe answers.
To handle that, we do per-stanza checks for the case that the origin
is local.
author | Jonas Schäfer <jonas@wielicki.name> |
---|---|
date | Sat, 01 Apr 2023 12:03:08 +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