mirror of
https://github.com/eworm-de/routeros-scripts
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222 lines
9.1 KiB
Text
222 lines
9.1 KiB
Text
#!rsc by RouterOS
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# RouterOS script: check-certificates
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# Copyright (c) 2013-2024 Christian Hesse <mail@eworm.de>
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# https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md
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#
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# requires RouterOS, version=7.13
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#
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# check for certificate validity
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# https://git.eworm.de/cgit/routeros-scripts/about/doc/check-certificates.md
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:global GlobalFunctionsReady;
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:while ($GlobalFunctionsReady != true) do={ :delay 500ms; }
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:do {
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:local ScriptName [ :jobname ];
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:global CertRenewTime;
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:global CertRenewUrl;
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:global CertWarnTime;
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:global Identity;
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:global CertificateAvailable
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:global EscapeForRegEx;
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:global IfThenElse;
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:global LogPrint;
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:global ParseKeyValueStore;
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:global ScriptLock;
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:global SendNotification2;
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:global SymbolForNotification;
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:global UrlEncode;
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:global WaitFullyConnected;
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:local CheckCertificatesDownloadImport do={
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:local ScriptName [ :tostr $1 ];
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:local Name [ :tostr $2 ];
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:global CertRenewUrl;
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:global CertRenewPass;
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:global CertificateNameByCN;
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:global EscapeForRegEx;
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:global FetchUserAgentStr;
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:global LogPrint;
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:global UrlEncode;
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:global WaitForFile;
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:local Return false;
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:foreach Type in={ ".pem"; ".p12" } do={
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:local CertFileName ([ $UrlEncode $Name ] . $Type);
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:do {
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/tool/fetch check-certificate=yes-without-crl http-header-field=({ [ $FetchUserAgentStr $ScriptName ] }) \
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($CertRenewUrl . $CertFileName) dst-path=$CertFileName as-value;
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$WaitForFile $CertFileName;
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:local DecryptionFailed true;
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:foreach PassPhrase in=$CertRenewPass do={
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:local Result [ /certificate/import file-name=$CertFileName passphrase=$PassPhrase as-value ];
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:if ($Result->"decryption-failures" = 0) do={
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:set DecryptionFailed false;
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}
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}
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/file/remove [ find where name=$CertFileName ];
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:if ($DecryptionFailed = true) do={
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$LogPrint warning $ScriptName ("Decryption failed for certificate file '" . $CertFileName . "'.");
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}
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:foreach CertInChain in=[ /certificate/find where name~("^" . [ $EscapeForRegEx $CertFileName ] . "_[0-9]+\$") \
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common-name!=$Name !(subject-alt-name~("(^|\\W)(DNS|IP):" . [ $EscapeForRegEx $Name ] . "(\\W|\$)")) !(common-name=[]) ] do={
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$CertificateNameByCN [ /certificate/get $CertInChain common-name ];
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}
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:set Return true;
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} on-error={
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$LogPrint debug $ScriptName ("Could not download certificate file '" . $CertFileName . "'.");
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}
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}
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:return $Return;
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}
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:local FormatInfo do={
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:local Cert $1;
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:global FormatLine;
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:global FormatMultiLines;
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:global IfThenElse;
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:local FormatExpire do={
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:global CharacterReplace;
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:return [ $CharacterReplace [ $CharacterReplace [ :tostr $1 ] "w" "w " ] "d" "d " ];
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}
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:local FormatCertChain do={
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:local Cert $1;
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:global EitherOr;
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:global ParseKeyValueStore;
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:local CertVal [ /certificate/get $Cert ];
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:if ([ :typeof ($CertVal->"issuer") ] = "nothing") do={
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:return "self-signed";
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}
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:local Return "";
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:for I from=0 to=5 do={
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:set Return ($Return . [ $EitherOr ([ $ParseKeyValueStore ($CertVal->"issuer") ]->"CN") \
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([ $ParseKeyValueStore (($CertVal->"issuer")->0) ]->"CN") ]);
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:set CertVal [ /certificate/get [ find where skid=($CertVal->"akid") ] ];
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:if (($CertVal->"akid") = "" || ($CertVal->"akid") = ($CertVal->"skid")) do={
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:return $Return;
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}
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:set Return ($Return . " -> ");
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}
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:return ($Return . "...");
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}
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:local CertVal [ /certificate/get $Cert ];
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:return ( \
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[ $FormatLine "Name" ($CertVal->"name") ] . "\n" . \
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[ $IfThenElse ([ :len ($CertVal->"common-name") ] > 0) ([ $FormatLine "CommonName" ($CertVal->"common-name") ] . "\n") ] . \
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[ $IfThenElse ([ :len ($CertVal->"subject-alt-name") ] > 0) ([ $FormatMultiLines "SubjectAltNames" ($CertVal->"subject-alt-name") ] . "\n") ] . \
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[ $FormatLine "Private key" [ $IfThenElse (($CertVal->"private-key") = true) "available" "missing" ] ] . "\n" . \
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[ $FormatLine "Fingerprint" ($CertVal->"fingerprint") ] . "\n" . \
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[ $IfThenElse ([ :len ($CertVal->"ca") ] > 0) [ $FormatLine "Issuer" ($CertVal->"ca") ] [ $FormatLine "Issuer chain" [ $FormatCertChain $Cert ] ] ] . "\n" . \
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"Validity:\n" . \
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[ $FormatLine " from" ($CertVal->"invalid-before") ] . "\n" . \
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[ $FormatLine " to" ($CertVal->"invalid-after") ] . "\n" . \
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[ $FormatLine "Expires in" [ $IfThenElse (($CertVal->"expired") = true) "expired" [ $FormatExpire ($CertVal->"expires-after") ] ] ]);
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}
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:if ([ $ScriptLock $ScriptName ] = false) do={
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:error false;
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}
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$WaitFullyConnected;
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:foreach Cert in=[ /certificate/find where !revoked !ca !scep-url expires-after<$CertRenewTime ] do={
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:local CertVal [ /certificate/get $Cert ];
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:local CertNew;
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:local LastName;
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:do {
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:if ([ :len $CertRenewUrl ] = 0) do={
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$LogPrint info $ScriptName ("No CertRenewUrl given.");
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:error false;
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}
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$LogPrint info $ScriptName ("Attempting to renew certificate '" . ($CertVal->"name") . "'.");
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:local ImportSuccess false;
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:set LastName ($CertVal->"common-name");
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:set ImportSuccess [ $CheckCertificatesDownloadImport $ScriptName $LastName ];
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:foreach SAN in=($CertVal->"subject-alt-name") do={
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:if ($ImportSuccess = false) do={
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:set LastName [ :pick $SAN ([ :find $SAN ":" ] + 1) [ :len $SAN ] ];
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:set ImportSuccess [ $CheckCertificatesDownloadImport $ScriptName $LastName ];
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}
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}
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:if ($ImportSuccess = false) do={ :error false; }
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:if ([ :len ($CertVal->"fingerprint") ] > 0 && $CertVal->"fingerprint" != [ /certificate/get $Cert fingerprint ]) do={
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$LogPrint debug $ScriptName ("Certificate '" . $CertVal->"name" . "' was updated in place.");
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:set CertVal [ /certificate/get $Cert ];
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} else={
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$LogPrint debug $ScriptName ("Certificate '" . $CertVal->"name" . "' was not updated, but replaced.");
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:set CertNew [ /certificate/find where name~("^" . [ $EscapeForRegEx [ $UrlEncode $LastName ] ] . "\\.(p12|pem)_[0-9]+\$") \
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(common-name=($CertVal->"common-name") or subject-alt-name~("(^|\\W)(DNS|IP):" . [ $EscapeForRegEx $LastName ] . "(\\W|\$)")) \
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fingerprint!=[ :tostr ($CertVal->"fingerprint") ] expires-after>$CertRenewTime ];
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:local CertNewVal [ /certificate/get $CertNew ];
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:if ([ $CertificateAvailable ([ $ParseKeyValueStore ($CertNewVal->"issuer") ]->"CN") ] = false) do={
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$LogPrint warning $ScriptName ("The certificate chain is not available!");
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}
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:if (($CertVal->"private-key") = true && ($CertVal->"private-key") != ($CertNewVal->"private-key")) do={
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/certificate/remove $CertNew;
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$LogPrint warning $ScriptName ("Old certificate '" . ($CertVal->"name") . "' has a private key, new certificate does not. Aborting renew.");
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:error false;
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}
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/ip/service/set certificate=($CertNewVal->"name") [ find where certificate=($CertVal->"name") ];
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/ip/ipsec/identity/set certificate=($CertNewVal->"name") [ find where certificate=($CertVal->"name") ];
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/ip/ipsec/identity/set remote-certificate=($CertNewVal->"name") [ find where remote-certificate=($CertVal->"name") ];
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/ip/hotspot/profile/set ssl-certificate=($CertNewVal->"name") [ find where ssl-certificate=($CertVal->"name") ];
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/certificate/remove $Cert;
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/certificate/set $CertNew name=($CertVal->"name");
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:set CertNewVal;
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:set CertVal [ /certificate/get $CertNew ];
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}
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$SendNotification2 ({ origin=$ScriptName; silent=true; \
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subject=([ $SymbolForNotification "lock-with-ink-pen" ] . "Certificate renewed: " . ($CertVal->"name")); \
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message=("A certificate on " . $Identity . " has been renewed.\n\n" . [ $FormatInfo $CertNew ]) });
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$LogPrint info $ScriptName ("The certificate '" . ($CertVal->"name") . "' has been renewed.");
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} on-error={
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$LogPrint debug $ScriptName ("Could not renew certificate '" . ($CertVal->"name") . "'.");
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}
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}
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:foreach Cert in=[ /certificate/find where !revoked !scep-url !(expires-after=[]) \
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expires-after<$CertWarnTime !(fingerprint=[]) ] do={
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:local CertVal [ /certificate/get $Cert ];
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:if ([ :len [ /certificate/scep-server/find where ca-cert=($CertVal->"ca") ] ] > 0) do={
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$LogPrint debug $ScriptName ("Certificate '" . ($CertVal->"name") . "' is handled by SCEP, skipping.");
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} else={
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:local State [ $IfThenElse (($CertVal->"expired") = true) "expired" "is about to expire" ];
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$SendNotification2 ({ origin=$ScriptName; \
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subject=([ $SymbolForNotification "warning-sign" ] . "Certificate warning: " . ($CertVal->"name")); \
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message=("A certificate on " . $Identity . " " . $State . ".\n\n" . [ $FormatInfo $Cert ]) });
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$LogPrint info $ScriptName ("The certificate '" . ($CertVal->"name") . "' " . $State . \
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", it is invalid after " . ($CertVal->"invalid-after") . ".");
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}
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}
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} on-error={ }
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