view mod_s2s_log_certs/mod_s2s_log_certs.lua @ 3503:882180b459a0

mod_pubsub_post: Restructure authentication and authorization (BC) This deprecates the default "superuser" actor model and makes the default equivalent to the previous "request.id". A single actor and secret per node is supported because HTTP and WebHooks don't normally include any authorization identity. Allowing authentication bypass when no secret is given should be relatively safe when the actor is unprivileged, as will be unless explicitly configured otherwise.
author Kim Alvefur <zash@zash.se>
date Sat, 30 Mar 2019 21:16:13 +0100
parents 663e5d923ef0
children
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module:set_global();

local dm_load = require "util.datamanager".load;
local dm_store = require "util.datamanager".store;
local datetime = require "util.datetime".datetime;

local do_store = module:get_option_boolean(module:get_name().."_persist", false);
local digest_algo = module:get_option_string(module:get_name().."_digest", "sha1");

local function note_cert_digest(event)
	local session, remote_host, cert = event.session, event.host, event.cert;

	if not (remote_host and cert and cert.digest) then return end;
	local digest = cert:digest(digest_algo);

	local local_host = session.direction == "outgoing" and session.from_host or session.to_host;
	local chain_status = session.cert_chain_status;
	local identity_status = session.cert_identity_status;

	module:log("info", "%s has a %s %s certificate with %s: %s",
		remote_host,
		chain_status == "valid" and "trusted" or "untrusted",
		identity_status or "invalid",
		digest_algo:upper(),
		digest:upper():gsub("..",":%0"):sub(2));

	if do_store then
		local seen_certs = dm_load(remote_host, local_host, "s2s_certs") or {};

		digest = digest_algo..":"..digest;
		local this_cert = seen_certs[digest] or { first = datetime(); times = 0; }
		this_cert.last = datetime();
		this_cert.times = this_cert.times + 1;
		seen_certs[digest] = this_cert;
		chain_status = chain_status;
		identity_status = identity_status;
		dm_store(remote_host, local_host, "s2s_certs", seen_certs);
	end
end

if module.wrap_event then
	-- 0.10
	module:wrap_event("s2s-check-certificate", function (handlers, event_name, event_data)
		local ret = handlers(event_name, event_data);
		note_cert_digest(event_data);
		return ret;
	end);
else
	-- 0.9
	module:hook("s2s-check-certificate", note_cert_digest, 1000);
end
--[[
function module.add_host(module)
	module:hook("s2s-check-certificate", note_cert_digest, 1000);
end
]]