Mercurial > prosody-modules
view mod_s2s_auth_fingerprint/mod_s2s_auth_fingerprint.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> |
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date | Mon, 08 Nov 2021 23:03:14 +0100 |
parents | ee2cedb0f691 |
children |
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-- Copyright (C) 2013-2014 Kim Alvefur -- This file is MIT/X11 licensed. module:set_global(); local digest_algo = module:get_option_string(module:get_name().."_digest", "sha1"); local fingerprints = {}; local function hashprep(h) return tostring(h):gsub(":",""):lower(); end local function hashfmt(h) return h:gsub("..","%0:", #h/2-1):upper(); end for host, set in pairs(module:get_option("s2s_trusted_fingerprints", {})) do local host_set = {} if type(set) == "table" then -- list of fingerprints for i=1,#set do host_set[hashprep(set[i])] = true; end else -- assume single fingerprint host_set[hashprep(set)] = true; end fingerprints[host] = host_set; end module:hook("s2s-check-certificate", function(event) local session, host, cert = event.session, event.host, event.cert; local host_fingerprints = fingerprints[host]; if host_fingerprints then local digest = cert and cert:digest(digest_algo); if host_fingerprints[digest] then module:log("info", "'%s' matched %s fingerprint %s", host, digest_algo:upper(), hashfmt(digest)); session.cert_chain_status = "valid"; session.cert_identity_status = "valid"; return true; else module:log("warn", "'%s' has unknown %s fingerprint %s", host, digest_algo:upper(), hashfmt(digest)); session.cert_chain_status = "invalid"; session.cert_identity_status = "invalid"; end end end);