routeros-scripts/check-certificates
Christian Hesse 6e4d715937 global-functions: add identity tag in $SendNotification
... and send subject in telegram message.
2018-11-28 21:19:39 +01:00

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#!rsc
# RouterOS script: check-certificates
# Copyright (c) 2013-2018 Christian Hesse <mail@eworm.de>
#
# check for certificate validity
:global "identity";
:global SendNotification;
:local months ("jan","feb","mar","apr","may","jun","jul","aug","sep","oct","nov","dec");
:local currentdate [ / system clock get date ];
:local currentmonthstr [ :pick $currentdate 0 3 ];
:local currentday [ :pick $currentdate 4 6 ];
:local currentyear [ :pick $currentdate 7 11 ];
:local currentmonth ([ :find $months $currentmonthstr -1 ] + 1);
:local currentstamp ($currentyear * 365 + $currentmonth * 30 + $currentday);
:foreach cert in=[ / certificate find where !revoked ] do={
:local certname [ / certificate get $cert name ];
:local invaliddate [ / certificate get $cert invalid-after ];
:if ([ :len $invaliddate ] > 0) do={
:local invalidmonthstr [ :pick $invaliddate 0 3 ];
:local invalidday [ :pick $invaliddate 4 6 ];
:local invalidyear [ :pick $invaliddate 7 11 ];
:local invalidmonth ([ :find $months $invalidmonthstr -1 ] + 1);
:local invalidstamp ($invalidyear * 365 + invalidmonth * 30 + invalidday);
:local remaining ($invalidstamp - $currentstamp);
:if ($remaining < 15) do={
:local commonname [ / certificate get $cert common-name ];
:local fingerprint [ / certificate get $cert fingerprint ];
:local invalidbefore [ / certificate get $cert invalid-before ];
:local invalidafter [ / certificate get $cert invalid-after ];
$SendNotification ("Certificate warning!") \
("A certificate on " . $identity . " is about to expire.\n\n" . \
"Certificate Name: " . $certname . "\n" . \
"Common Name: " . $commonname . "\n" . \
"Fingerprint: " . $fingerprint . "\n" . \
"Validity: " . $invalidbefore . " to " . $invalidafter);
:log warning ("A certificate is about to expire within " . $remaining . " days: " . $certname);
} else={
:log debug ("The certificate " . $certname . " expires in " . $remaining . " days.");
}
} else={
:log debug ("The certificate " . $certname . " is just a template.");
}
}