diff options
Diffstat (limited to 'check-certificates.rsc')
| -rw-r--r-- | check-certificates.rsc | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/check-certificates.rsc b/check-certificates.rsc new file mode 100644 index 0000000..c10e33b --- /dev/null +++ b/check-certificates.rsc @@ -0,0 +1,242 @@ +#!rsc by RouterOS +# RouterOS script: check-certificates +# Copyright (c) 2013-2025 Christian Hesse <mail@eworm.de> +# https://rsc.eworm.de/COPYING.md +# +# requires RouterOS, version=7.15 +# requires device-mode, fetch +# +# check for certificate validity +# https://rsc.eworm.de/doc/check-certificates.md + +:local ExitOK false; +:onerror Err { + :global GlobalConfigReady; :global GlobalFunctionsReady; + :retry { :if ($GlobalConfigReady != true || $GlobalFunctionsReady != true) \ + do={ :error ("Global config and/or functions not ready."); }; } delay=500ms max=50; + :local ScriptName [ :jobname ]; + + :global CertRenewTime; + :global CertRenewUrl; + :global CertWarnTime; + :global Identity; + + :global CertificateAvailable + :global EscapeForRegEx; + :global IfThenElse; + :global LogPrint; + :global ParseKeyValueStore; + :global ScriptLock; + :global SendNotification2; + :global SymbolForNotification; + :global UrlEncode; + :global WaitFullyConnected; + + :local CheckCertificatesDownloadImport do={ + :local ScriptName [ :tostr $1 ]; + :local CertName [ :tostr $2 ]; + :local FetchName [ :tostr $3 ]; + + :global CertRenewUrl; + :global CertRenewPass; + + :global CertificateNameByCN; + :global EscapeForRegEx; + :global FetchUserAgentStr; + :global LogPrint; + :global RmFile; + :global UrlEncode; + :global WaitForFile; + + :foreach Type in={ "p12"; "pem" } do={ + :local CertFileName ([ $UrlEncode $FetchName ] . "." . $Type); + $LogPrint debug $ScriptName ("Trying type '" . $Type . "' for '" . $CertName . \ + "' (file '" . $CertFileName . "')..."); + + :do { + /tool/fetch check-certificate=yes-without-crl http-header-field=({ [ $FetchUserAgentStr $ScriptName ] }) \ + ($CertRenewUrl . $CertFileName) dst-path=$CertFileName as-value; + $WaitForFile $CertFileName; + + :local DecryptionFailed true; + :foreach I,PassPhrase in=$CertRenewPass do={ + :do { + $LogPrint debug $ScriptName ("Trying " . $I . ". passphrase... "); + :local Result [ /certificate/import file-name=$CertFileName passphrase=$PassPhrase as-value ]; + :if ($Result->"decryption-failures" = 0) do={ + $LogPrint debug $ScriptName ("Success!"); + :set DecryptionFailed false; + } + } on-error={ } + } + $RmFile $CertFileName; + + :if ($DecryptionFailed = true) do={ + $LogPrint warning $ScriptName ("Decryption failed for certificate file '" . $CertFileName . "'."); + } + + :foreach CertInChain in=[ /certificate/find where common-name!=$CertName !private-key \ + name~("^" . [ $EscapeForRegEx $CertFileName ] . "_[0-9]+\$") \ + !(subject-alt-name~("(^|\\W)(DNS|IP):" . [ $EscapeForRegEx $CertName ] . "(\\W|\$)")) \ + !(common-name=[]) ] do={ + $CertificateNameByCN [ /certificate/get $CertInChain common-name ]; + } + + :return true; + } on-error={ + $LogPrint debug $ScriptName ("Could not download certificate file '" . $CertFileName . "'."); + } + } + + :return false; + } + + :local FormatInfo do={ + :local Cert $1; + + :global FormatLine; + :global FormatMultiLines; + :global IfThenElse; + + :local FormatExpire do={ + :global CharacterReplace; + :return [ $CharacterReplace [ $CharacterReplace [ :tostr $1 ] "w" "w " ] "d" "d " ]; + } + + :local FormatCertChain do={ + :local Cert $1; + + :global EitherOr; + :global ParseKeyValueStore; + + :local CertVal [ /certificate/get $Cert ]; + + :if ([ :typeof ($CertVal->"issuer") ] = "nothing") do={ + :return "self-signed"; + } + + :local Return ""; + :for I from=0 to=5 do={ + :set Return ($Return . [ $EitherOr ([ $ParseKeyValueStore ($CertVal->"issuer") ]->"CN") \ + ([ $ParseKeyValueStore (($CertVal->"issuer")->0) ]->"CN") ]); + :set CertVal [ /certificate/get [ find where skid=($CertVal->"akid") ] ]; + :if (($CertVal->"akid") = "" || ($CertVal->"akid") = ($CertVal->"skid")) do={ + :return $Return; + } + :set Return ($Return . " -> "); + } + :return ($Return . "..."); + } + + :local CertVal [ /certificate/get $Cert ]; + + :return ( \ + [ $FormatLine "Name" ($CertVal->"name") ] . "\n" . \ + [ $IfThenElse ([ :len ($CertVal->"common-name") ] > 0) ([ $FormatLine "CommonName" ($CertVal->"common-name") ] . "\n") ] . \ + [ $IfThenElse ([ :len ($CertVal->"subject-alt-name") ] > 0) ([ $FormatMultiLines "SubjectAltNames" ($CertVal->"subject-alt-name") ] . "\n") ] . \ + [ $FormatLine "Private key" [ $IfThenElse (($CertVal->"private-key") = true) "available" "missing" ] ] . "\n" . \ + [ $FormatLine "Fingerprint" ($CertVal->"fingerprint") ] . "\n" . \ + [ $IfThenElse ([ :len ($CertVal->"ca") ] > 0) [ $FormatLine "Issuer" ($CertVal->"ca") ] [ $FormatLine "Issuer chain" [ $FormatCertChain $Cert ] ] ] . "\n" . \ + "Validity:\n" . \ + [ $FormatLine " from" ($CertVal->"invalid-before") ] . "\n" . \ + [ $FormatLine " to" ($CertVal->"invalid-after") ] . "\n" . \ + [ $FormatLine "Expires in" [ $IfThenElse (($CertVal->"expired") = true) "expired" [ $FormatExpire ($CertVal->"expires-after") ] ] ]); + } + + :if ([ $ScriptLock $ScriptName ] = false) do={ + :set ExitOK true; + :error false; + } + $WaitFullyConnected; + + :foreach Cert in=[ /certificate/find where !revoked !ca !scep-url expires-after<$CertRenewTime ] do={ + :local CertVal [ /certificate/get $Cert ]; + :local LastName; + :local FetchName; + + :do { + :if ([ :len $CertRenewUrl ] = 0) do={ + $LogPrint info $ScriptName ("No CertRenewUrl given."); + :error false; + } + $LogPrint info $ScriptName ("Attempting to renew certificate '" . ($CertVal->"name") . "'."); + + :local ImportSuccess false; + :set LastName ($CertVal->"common-name"); + :set FetchName $LastName; + :set ImportSuccess [ $CheckCertificatesDownloadImport $ScriptName $LastName $FetchName ]; + :foreach SAN in=($CertVal->"subject-alt-name") do={ + :if ($ImportSuccess = false) do={ + :set LastName [ :pick $SAN ([ :find $SAN ":" ] + 1) [ :len $SAN ] ]; + :set FetchName $LastName; + :set ImportSuccess [ $CheckCertificatesDownloadImport $ScriptName $LastName $FetchName ]; + :if ($ImportSuccess = false && [ :pick $LastName 0 2 ] = "*.") do={ + :set FetchName ("star." . [ :pick $LastName 2 [ :len $LastName ] ]); + :set ImportSuccess [ $CheckCertificatesDownloadImport $ScriptName $LastName $FetchName ]; + } + } + } + :if ($ImportSuccess = false) do={ :error false; } + + :if ([ :len ($CertVal->"fingerprint") ] > 0 && $CertVal->"fingerprint" != [ /certificate/get $Cert fingerprint ]) do={ + $LogPrint debug $ScriptName ("Certificate '" . $CertVal->"name" . "' was updated in place."); + :set CertVal [ /certificate/get $Cert ]; + } else={ + $LogPrint debug $ScriptName ("Certificate '" . $CertVal->"name" . "' was not updated, but replaced."); + + :local CertNew [ /certificate/find where name~("^" . [ $EscapeForRegEx [ $UrlEncode $FetchName ] ] . "\\.(p12|pem)_[0-9]+\$") \ + (common-name=($CertVal->"common-name") or subject-alt-name~("(^|\\W)(DNS|IP):" . [ $EscapeForRegEx $LastName ] . "(\\W|\$)")) \ + fingerprint!=[ :tostr ($CertVal->"fingerprint") ] expires-after>$CertRenewTime ]; + :local CertNewVal [ /certificate/get $CertNew ]; + + :if ([ $CertificateAvailable ([ $ParseKeyValueStore ($CertNewVal->"issuer") ]->"CN") ] = false) do={ + $LogPrint warning $ScriptName ("The certificate chain is not available!"); + } + + :if (($CertVal->"private-key") = true && ($CertVal->"private-key") != ($CertNewVal->"private-key")) do={ + /certificate/remove $CertNew; + $LogPrint warning $ScriptName ("Old certificate '" . ($CertVal->"name") . "' has a private key, new certificate does not. Aborting renew."); + :error false; + } + + /ip/service/set certificate=($CertNewVal->"name") [ find where certificate=($CertVal->"name") ]; + + /ip/ipsec/identity/set certificate=($CertNewVal->"name") [ find where certificate=($CertVal->"name") ]; + /ip/ipsec/identity/set remote-certificate=($CertNewVal->"name") [ find where remote-certificate=($CertVal->"name") ]; + + /ip/hotspot/profile/set ssl-certificate=($CertNewVal->"name") [ find where ssl-certificate=($CertVal->"name") ]; + + /certificate/remove $Cert; + /certificate/set $CertNew name=($CertVal->"name"); + :set Cert $CertNew; + :set CertVal [ /certificate/get $CertNew ]; + } + + $SendNotification2 ({ origin=$ScriptName; silent=true; \ + subject=([ $SymbolForNotification "lock-with-ink-pen" ] . "Certificate renewed: " . ($CertVal->"name")); \ + message=("A certificate on " . $Identity . " has been renewed.\n\n" . [ $FormatInfo $Cert ]) }); + $LogPrint info $ScriptName ("The certificate '" . ($CertVal->"name") . "' has been renewed."); + } on-error={ + $LogPrint debug $ScriptName ("Could not renew certificate '" . ($CertVal->"name") . "'."); + } + } + + :foreach Cert in=[ /certificate/find where !revoked !scep-url !(expires-after=[]) \ + expires-after<$CertWarnTime !(fingerprint=[]) ] do={ + :local CertVal [ /certificate/get $Cert ]; + + :if ([ :len [ /certificate/scep-server/find where ca-cert=($CertVal->"ca") ] ] > 0) do={ + $LogPrint debug $ScriptName ("Certificate '" . ($CertVal->"name") . "' is handled by SCEP, skipping."); + } else={ + :local State [ $IfThenElse (($CertVal->"expired") = true) "expired" "is about to expire" ]; + + $SendNotification2 ({ origin=$ScriptName; \ + subject=([ $SymbolForNotification "warning-sign" ] . "Certificate warning: " . ($CertVal->"name")); \ + message=("A certificate on " . $Identity . " " . $State . ".\n\n" . [ $FormatInfo $Cert ]) }); + $LogPrint info $ScriptName ("The certificate '" . ($CertVal->"name") . "' " . $State . \ + ", it is invalid after " . ($CertVal->"invalid-after") . "."); + } + } +} do={ + :global ExitError; $ExitError $ExitOK [ :jobname ] $Err; +} |