Mercurial > prosody-modules
view mod_checkcerts/mod_checkcerts.lua @ 4942:e7b9bc629ecc
mod_rest: Add special handling to catch MAM results from remote hosts
Makes MAM queries to remote hosts works.
As the comment says, MAM results from users' local archives or local
MUCs are returned via origin.send() which is provided in the event and
thus already worked. Results from remote hosts go via normal stanza
routing and events, which need this extra handling to catch.
This pattern of iq-set, message+, iq-result is generally limited to MAM.
Closest similar thing might be MUC join, but to really handle that you
would need the webhook callback mechanism.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Mon, 16 May 2022 19:47:09 +0200 |
parents | c8ccaac78f64 |
children |
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local config = require "core.configmanager"; local ssl = require"ssl"; local datetime_parse = require"util.datetime".parse; local load_cert = ssl.loadcertificate; local st = require"util.stanza" -- These are in days. local nag_time = module:get_option_number("checkcerts_notify", 7) * 86400; if not load_cert then module:log("error", "This version of LuaSec (%s) does not support certificate checking", ssl._VERSION); return end local pat = "^([JFMAONSD][ceupao][glptbvyncr]) ?(%d%d?) (%d%d):(%d%d):(%d%d) (%d%d%d%d) GMT$"; local months = {Jan=1,Feb=2,Mar=3,Apr=4,May=5,Jun=6,Jul=7,Aug=8,Sep=9,Oct=10,Nov=11,Dec=12}; local function parse_x509_datetime(s) local month, day, hour, min, sec, year = s:match(pat); month = months[month]; return datetime_parse(("%04d-%02d-%02dT%02d:%02d:%02dZ"):format(year, month, day, hour, min, sec)); end local timeunits = {"minute",60,"hour",3600,"day",86400,"week",604800,"month",2629746,"year",31556952,}; local function humantime(timediff) local ret = {}; for i=#timeunits,2,-2 do if timeunits[i] < timediff then local n = math.floor(timediff / timeunits[i]); if n > 0 and #ret < 2 then ret[#ret+1] = ("%d %s%s"):format(n, timeunits[i-1], n ~= 1 and "s" or ""); timediff = timediff - n*timeunits[i]; end end end return table.concat(ret, " and ") end local function check_certs_validity() local now = os.time(); -- First, let's find out what certificate this host uses. local ssl_config = config.rawget(module.host, "ssl"); if not ssl_config or not ssl_config.certificate then ssl_config = config.get(module.host:match("%.(.*)"), "ssl"); end if not ssl_config or not ssl_config.certificate then ssl_config = config.get("*", "ssl"); end if not ssl_config or not ssl_config.certificate then module:log("warn", "Could not find a certificate to check"); return; end local certfile = ssl_config.certificate; local fh, ferr = io.open(certfile); -- Load the file. if not fh then module:log("warn", "Could not open certificate %s", ferr); return; end local cert, lerr = load_cert(fh:read("*a")); -- And parse fh:close(); if not cert then module:log("warn", "Could not parse certificate %s: %s", certfile, lerr or ""); return; end local expires_at = parse_x509_datetime(cert:notafter()); local expires_in = os.difftime(expires_at, now); local fmt = "Certificate %s expires in %s" local nag_admin = expires_in < nag_time; local log_warn = expires_in < nag_time * 2; local timediff = expires_in; if expires_in < 0 then fmt = "Certificate %s expired %s ago"; timediff = -timediff; end timediff = humantime(timediff); module:log(log_warn and "warn" or "info", fmt, certfile, timediff); if nag_admin then local body = fmt:format("for host ".. module.host, timediff); for admin in module:get_option_inherited_set("admins", {}) do module:send(st.message({ from = module.host, to = admin, type = "chat" }, body)); end end return math.max(86400, expires_in / 3); end module:add_timer(1, check_certs_validity);