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();
10 local log = session.log or log;
13 log("warn", "No certificate provided by %s", host or "unknown host");
17 local chain_valid, errors;
18 if conn.getpeerverification then
19 chain_valid, errors = conn:getpeerverification();
20 elseif conn.getpeerchainvalid then -- COMPAT mw/luasec-hg
21 chain_valid, errors = conn:getpeerchainvalid();
22 errors = (not chain_valid) and { { errors } } or nil;
24 chain_valid, errors = false, { { "Chain verification not supported by this version of LuaSec" } };
26 -- Is there any interest in printing out all/the number of errors here?
27 if not chain_valid then
28 log("debug", "certificate chain validation result: invalid");
29 for depth, t in pairs(errors or NULL) do
30 log("debug", "certificate error(s) at depth %d: %s", depth-1, table.concat(t, ", "))
32 session.cert_chain_status = "invalid";
34 log("debug", "certificate chain validation result: valid");
35 session.cert_chain_status = "valid";
37 -- We'll go ahead and verify the asserted identity if the
38 -- connecting server specified one.
40 if cert_verify_identity(host, "xmpp-server", cert) then
41 session.cert_identity_status = "valid"
43 session.cert_identity_status = "invalid"
45 log("debug", "certificate identity validation result: %s", session.cert_identity_status);