File

mod_s2s_log_certs/mod_s2s_log_certs.lua @ 4268:871d140d61bb

mod_adhoc_oauth2_client: Fix including final client_id in result form The client_id is composed of the details needed for retrieving the data, making it redundant to include in the data, albeit somewhat convenient sometimes. Decided to remove it anyways, but forgot to change the result.
author Kim Alvefur <zash@zash.se>
date Sun, 22 Nov 2020 17:00:26 +0100
parent 1787:663e5d923ef0
line wrap: on
line source

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
]]