3 local cert_verify_identity = require "util.x509".verify_identity;
5 local log = module._log;
7 module:hook("s2s-check-certificate", function(event)
8 local session, host, cert = event.session, event.host, event.cert;
9 local conn = session.conn:socket();
12 local log = session.log or log;
13 local chain_valid, errors;
14 if conn.getpeerverification then
15 chain_valid, errors = conn:getpeerverification();
16 elseif conn.getpeerchainvalid then -- COMPAT mw/luasec-hg
17 chain_valid, errors = conn:getpeerchainvalid();
18 errors = (not chain_valid) and { { errors } } or nil;
20 chain_valid, errors = false, { { "Chain verification not supported by this version of LuaSec" } };
22 -- Is there any interest in printing out all/the number of errors here?
23 if not chain_valid then
24 log("debug", "certificate chain validation result: invalid");
25 for depth, t in pairs(errors or NULL) do
26 log("debug", "certificate error(s) at depth %d: %s", depth-1, table.concat(t, ", "))
28 session.cert_chain_status = "invalid";
30 log("debug", "certificate chain validation result: valid");
31 session.cert_chain_status = "valid";
33 -- We'll go ahead and verify the asserted identity if the
34 -- connecting server specified one.
36 if cert_verify_identity(host, "xmpp-server", cert) then
37 session.cert_identity_status = "valid"
39 session.cert_identity_status = "invalid"
41 log("debug", "certificate identity validation result: %s", session.cert_identity_status);