Mercurial > prosody-modules
view mod_auth_ccert/mod_auth_ccert.lua @ 2670:6e01878103c0
mod_smacks: Ignore user when writing or reading session_cache on prosody 0.9
At least under some circumstances it seems that session.username is nil when
a user tries to resume his session in prosody 0.9.
The username is not relevant when no limiting is done (limiting the number of
entries in the session cache is only possible in prosody 0.10), so this
commit removes the usage of the username when accessing the prosody 0.9 session
cache.
author | tmolitor <thilo@eightysoft.de> |
---|---|
date | Thu, 06 Apr 2017 02:12:14 +0200 |
parents | b21236b6b8d8 |
children | 86acfa44dc24 |
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-- Copyright (C) 2013 Kim Alvefur -- -- This file is MIT/X11 licensed. local jid_compare = require "util.jid".compare; local jid_split = require "util.jid".prepped_split; local new_sasl = require "util.sasl".new; local now = os.time; local log = module._log; local subject_alternative_name = "2.5.29.17"; local id_on_xmppAddr = "1.3.6.1.5.5.7.8.5"; local oid_emailAddress = "1.2.840.113549.1.9.1"; local cert_match = module:get_option("certificate_match", "xmppaddr"); local username_extractor = {}; function username_extractor.xmppaddr(cert, authz, session) local extensions = cert:extensions(); local SANs = extensions[subject_alternative_name]; local xmppAddrs = SANs and SANs[id_on_xmppAddr]; if not xmppAddrs then (session.log or log)("warn", "Client certificate contains no xmppAddrs"); return nil, false; end for i=1,#xmppAddrs do if authz == "" or jid_compare(authz, xmppAddrs[i]) then (session.log or log)("debug", "xmppAddrs[%d] %q matches authz %q", i, xmppAddrs[i], authz) local username, host = jid_split(xmppAddrs[i]); if host == module.host then return username, true end end end end function username_extractor.email(cert) local subject = cert:subject(); for i=1,#subject do local ava = subject[i]; if ava.oid == oid_emailAddress then local username, host = jid_split(ava.value); if host == module.host then return username, true end end end end local find_username = username_extractor[cert_match]; if not find_username then module:log("error", "certificate_match = %q is not supported"); return end function get_sasl_handler(session) return new_sasl(module.host, { external = session.secure and function(authz) if not session.secure then -- getpeercertificate() on a TCP connection would be bad, abort! (session.log or log)("error", "How did you manage to select EXTERNAL without TLS?"); return nil, false; end local sock = session.conn:socket(); local cert = sock:getpeercertificate(); if not cert then (session.log or log)("warn", "No certificate provided"); return nil, false; end if not cert:validat(now()) then (session.log or log)("warn", "Client certificate expired") return nil, "expired"; end local chain_valid, chain_errors = sock:getpeerverification(); if not chain_valid then (session.log or log)("warn", "Invalid client certificate chain"); for i, error in ipairs(chain_errors) do (session.log or log)("warn", "%d: %s", i, table.concat(error, ", ")); end return nil, false; end return find_username(cert, authz, session); end }); end module:provides "auth";