Mercurial > prosody-modules
view mod_tls_policy/mod_tls_policy.lua @ 4764:a754f7e380b2
mod_dnsupdate: Rewrite port config vs DNS comparison code
I'm not sure if it was correct, which means it was hard to understand
and thus needed to be simplified. Hope this accomplishes that.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Mon, 08 Nov 2021 23:03:14 +0100 |
parents | 1b701f208b1b |
children |
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assert(require"ssl.core".info, "Incompatible LuaSec version"); local function hook(event_name, typ, policy) if not policy then return end if policy == "FS" then policy = { cipher = "^E?C?DHE%-" }; elseif type(policy) == "string" then policy = { cipher = policy }; end module:hook(event_name, function (event) local origin = event.origin; if origin.conn and origin.conn:ssl() then local info = origin.conn:socket():info(); for key, what in pairs(policy) do module:log("debug", "Does info[%q] = %s match %s ?", key, tostring(info[key]), tostring(what)); if (type(what) == "number" and what < info[key] ) or (type(what) == "string" and not info[key]:match(what)) then origin:close({ condition = "policy-violation", text = ("TLS %s '%s' not acceptable"):format(key, tostring(info[key])) }); return false; end module:log("debug", "Seems so"); end module:log("debug", "Policy matches"); end end, 1000); end local policy = module:get_option(module.name, {}); if type(policy) == "string" then policy = { c2s = policy, s2s = policy }; end hook("stream-features", "c2s", policy.c2s); hook("s2s-stream-features", "s2sin", policy.s2sin or policy.s2s); hook("stanza/http://etherx.jabber.org/streams:features", "s2sout", policy.s2sout or policy.s2s);