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comparison mod_checkcerts/mod_checkcerts.lua @ 1880:a7c1f1b6ef05

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mod_checkcerts: Improve error handling when loading certificate
author Kim Alvefur <zash@zash.se>
date Tue, 29 Sep 2015 14:56:46 +0200
parents 18123e0f5d58
children ec7f9c8f2a5f
comparison
equal deleted inserted replaced
1879:18123e0f5d58 1880:a7c1f1b6ef05
48 log("warn", "Could not find a certificate to check"); 48 log("warn", "Could not find a certificate to check");
49 return; 49 return;
50 end 50 end
51 51
52 local certfile = ssl_config.certificate; 52 local certfile = ssl_config.certificate;
53 local fh = io.open(certfile); -- Load the file. 53 local fh, ferr = io.open(certfile); -- Load the file.
54 cert = fh and fh:read"*a"; 54 if not fh then
55 fh = fh and fh:close(); 55 log("warn", "Could not open certificate %s", ferr);
56 local cert = cert and load_cert(cert); -- And parse 56 return;
57 end
58 local cert, lerr = load_cert(fh:read("*a")); -- And parse
59 fh:close();
60 if not cert then
61 log("warn", "Could not parse certificate %s: %s", certfile, lerr or "");
62 return;
63 end
57 64
58 if not cert then
59 module:log("warn", "No certificate configured for this host, please fix this and reload this module to check expiry");
60 return
61 end
62 local expires_at = parse_x509_datetime(cert:notafter()); 65 local expires_at = parse_x509_datetime(cert:notafter());
63 local expires_in = os.difftime(expires_at, now); 66 local expires_in = os.difftime(expires_at, now);
64 local fmt = "Certificate %s expires in %s" 67 local fmt = "Certificate %s expires in %s"
65 local nag_admin = expires_in < nag_time; 68 local nag_admin = expires_in < nag_time;
66 local log_warn = expires_in < nag_time * 2; 69 local log_warn = expires_in < nag_time * 2;