Mercurial > prosody-modules
annotate mod_checkcerts/mod_checkcerts.lua @ 1013:8285c3502100
mod_auto_activate_hosts: Don't activate * when the config is reloaded
author | Matthew Wild <mwild1@gmail.com> |
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date | Sat, 18 May 2013 11:46:11 +0100 |
parents | a8203db13ca2 |
children | cbbeac61f1ab |
rev | line source |
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mod_checkcerts: New module that logs a warning when your cert is about to expire.
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1 local ssl = require"ssl"; |
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2 local load_cert = ssl.x509 and ssl.x509.load |
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3 or ssl.cert_from_pem; -- COMPAT mw/luasec-hg |
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4 local st = require"util.stanza" |
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5 |
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6 if not load_cert then |
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7 module:log("error", "This version of LuaSec (%s) does not support certificate checking", ssl._VERSION); |
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8 return |
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9 end |
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10 |
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11 local last_check = 0; |
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12 |
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13 local function check_certs_validity() |
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14 local now = os.time(); |
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15 |
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16 if last_check > now - 21600 then |
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17 return |
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18 else |
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19 last_check = now; |
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20 end |
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21 -- First, let's find out what certificate this host uses. |
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22 local ssl_config = config.rawget(module.host, "core", "ssl"); |
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23 if not ssl_config then |
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24 local base_host = module.host:match("%.(.*)"); |
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25 ssl_config = config.get(base_host, "core", "ssl"); |
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26 end |
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27 |
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28 if ssl_config.certificate then |
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29 local certfile = ssl_config.certificate; |
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30 local cert; |
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31 |
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32 local fh = io.open(certfile); -- Load the file. |
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33 cert = fh and fh:read"*a"; |
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34 fh:close(); |
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35 cert = cert and load_cert(cert); -- And parse |
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36 if not cert then return end |
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37 -- No error reporting, certmanager should complain already |
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38 |
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39 local valid_at = cert.valid_at or cert.validat; |
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40 if not valid_at then return end -- Broken or uncommon LuaSec version? |
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41 |
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42 -- This might be wrong if the certificate has NotBefore in the future. |
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Kim Alvefur <zash@zash.se>
parents:
855
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43 -- However this is unlikely to happen with CA-issued certs in the wild. |
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44 local notafter = cert.notafter and cert:notafter(); |
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45 if not valid_at(cert, now) then |
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parents:
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46 module:log("error", "The certificate %s has expired", certfile); |
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47 module:send(st.message({from=module.host,to=admin,type="chat"},("Certificate for host %s has expired!"):format(module.host))); |
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48 elseif not valid_at(cert, now+86400*7) then |
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49 module:log("warn", "The certificate %s will expire %s", certfile, notafter or "this week"); |
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50 for _,admin in ipairs(module:get_option_array("admins", {})) do |
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51 module:send(st.message({from=module.host,to=admin,type="chat"},("Certificate for host %s will expire %s!"):format(module.host, notafter or "this week"))); |
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52 end |
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53 elseif not valid_at(cert, now+86400*30) then |
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54 module:log("warn", "The certificate %s will expire later this month", certfile); |
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55 else |
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56 module:log("info", "The certificate %s is valid until %s", certfile, notafter or "later"); |
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57 end |
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58 end |
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59 end |
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60 |
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61 module:hook_global("config-reloaded", check_certs_validity); |
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62 module:add_timer(1, function() |
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63 check_certs_validity(); |
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64 return math.random(14400, 86400); |
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65 end); |