--- a/check_tlsa_record.pl Mon May 02 17:18:49 2016 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,228 +0,0 @@
-#! /usr/bin/perl
-#dig TLSA _25._tcp.ssl.schlittermann.de +dnssec +m
-#dig TLSA _25._tcp.hh.schlittermann.de
-# http://search.cpan.org/~nierlein/Monitoring-Plugin-0.39/lib/Monitoring/Plugin.pm
-# http://perldoc.perl.org/File/Basename.html
-# needs debian packet: libmonitoring-plugin-perl
-#TLSA Record generieren
-# openssl x509 -in <servername>.crt -outform DER | openssl sha256
-# neben sha256 gibt's noch sha1 sha224 sha256 sha384 sha512
-# sowie md2 md5 rmd160 (wobei ich diese nicht in betracht ziehe)
-# ssl certifikat von einem remote server anfordern
-# openssl s_client -showcerts -connect ssl.schlittermann.de:443 < /dev/null
-# https://github.com/monitoring-plugins
-# https://github.com/monitoring-plugins/monitoring-plugin-perl/blob/master/t/check_stuff.pl
-
-#openssl s_client -starttls smtp -connect ssl.schlittermann.de:25 | openssl x509 -pubkey | openssl rsa -pubin -inform PEM -outform DER | openssl sha256
-#openssl s_client -starttls smtp -connect ssl.schlittermann.de:25 | openssl x509 -outform DER | openssl sha256
-
-use strict;
-use warnings;
-use feature qw(switch);
-use if $^V >= v5.020 => (experimental => qw(smartmatch));
-use experimental qw(smartmatch);
-use Monitoring::Plugin;
-use File::Basename;
-
-#devel
-use Data::Dumper;
-
-use constant LF => "\n";
-
-my $VERSION = '0.1';
-my $blurb = 'This Plugin is intendet to check TLSA Record';
-my $url = 'https://schlittermann.de';
-my $author = 'Heike Yvonne Pesch';
-my $email = '<pesch@schlittermann.de>';
-my $extra = LF.'Author: '.$author.' '.$email.LF
- . 'For more information visit '.$url;
-my $license = 'GPLv3';
-my $usage = 'Usage: %s [ -v|--verbose ] [-H <host>] [-t <timeout>] '
- . '[ -c|--critical=<critical threshold> ] '
- . '[ -w|--warning=<warning threshold> ] '
- . '[ -p|--port=<portnumber> ] '
- . '[ -q|--queryserver=<DNS-Server-IP> ] ';
-
-my $check_tlsa = Monitoring::Plugin->new(
- usage => $usage,
- version => $VERSION,
- blurb => $blurb,
- extra => $extra,
- url => $url,
- license => $license,
- plugin => basename $0,
- timeout => 60,
-);
-
-$check_tlsa->add_arg(
- spec => 'host|H=s',
- help => q|Host/Domain to check|,
- required => 0,
-);
-
-$check_tlsa->add_arg(
- spec => 'hostlist|f=s',
- help => q|Host/Domainlist in file to check|,
- required => 0,
-);
-
-$check_tlsa->add_arg(
- spec => 'expiry|e',
- help => q|check expiry of Certificate|,
- required => 0,
-);
-
-$check_tlsa->add_arg(
- spec => 'port|p=i',
- help => q|Port of Domain to check the TLSA (default: 443)|,
- required => 0,
- default => 443,
-);
-
-$check_tlsa->add_arg(
- spec => 'queryserver|q=s',
- help => q|DNS Server to ask to check the TLSA (default: defined in resolve.conf)|,
- required => 0,
- #default => '8.8.8.8',
-);
-
-$check_tlsa->add_arg(
- spec => 'protocol|P=s',
- help => q|DNS Server to ask to check the TLSA (default: tcp)|,
- required => 0,
- default => 'tcp',
-);
-
-$check_tlsa->getopts;
-
-my $domain = $check_tlsa->opts->host;
-my $domainlist = $check_tlsa->opts->hostlist;
-my $expiry = $check_tlsa->opts->expiry;
-
-if (!$domain && !$domainlist) {
- my $script = basename $0;
- my $excuse = "Please set -H <domain> or -f <domainlist>\n"
- . "For all options try $script --help";
-
- print $excuse,LF;
- exit 1;
-}
-
-
- my $port;
- my $cert;
- my $check_date;
-
- if ( defined $domainlist && -e $domainlist){
- print get_domains();
- }
- else { print check_tlsa(); }
-
-sub check_tlsa {
- my $protocol = $check_tlsa->opts->protocol;
-
- $port = $check_tlsa->opts->port unless $port ;
-
- if ("$port" eq '25') {
- $cert = "openssl s_client -starttls smtp -connect $domain:$port "
- . '< /dev/null 2>/dev/null';
- }
- else {
- #$port = $check_tlsa->opts->port;
- $cert = "openssl s_client -connect $domain:$port "
- . '< /dev/null 2>/dev/null';
- }
-
- my $digquery = "dig TLSA _$port._$protocol.$domain +short";
- my $diganswer = qx($digquery);
- my $dig = substr($diganswer, 6, );
- $dig =~ s/(\S*)\s+(\S*)$/$1$2/;
- my $tlsa_usage = substr($diganswer, 0, 1);
- my $tlsa_selector = substr($diganswer, 2, 1);
- my $tlsa_match_type = substr($diganswer, 4, 1);
- my $hashit;
-
- for ($tlsa_match_type) {
- when('0') { die 'certs will be compared directly'}
- when('1') {$hashit = 'sha256'}
- when('2') {$hashit = 'sha512'}
- default {$hashit = 'sha256'}
- };
-
- my $gentlsa = 'openssl x509 -pubkey | '
- . 'openssl rsa -pubin -inform PEM -outform DER 2>/dev/null| '
- . "openssl $hashit";
- my $certtlsa = "$cert | $gentlsa";
-
- $check_date = 'openssl x509 -noout -startdate -enddate';
- $check_date = "$cert|$check_date";
-
-
- my $return;
-
- my $tlsa_record = qx($certtlsa) or die "nothing found!\n";
- $tlsa_record =~ s/^.*= (.*$)/$1/gi;
- $tlsa_record = uc($tlsa_record);
-
- if (defined $expiry) {
- print check_cert_expiry();
- }
-
- if ("$tlsa_record" eq "$dig") {
- #$return = "TLSA record is $tlsa_record and valid";
- #funktioniert nich nicht optimal mit hostliste
- $return = $check_tlsa->plugin_exit(OK, "$domain: TLSA record is valid")
- . "$domain: TLSA record is valid\n";
- }
- else {
- $check_tlsa->plugin_exit(CRITICAL, "$domain: TLSA record NOT valid");
- }
- return $return;
- #return $cert;
-}
-
-
-
-sub get_domains {
- open(my $filehandle, '<', $domainlist);
-
- my $pattern = '^(?<domain>\S*\.[a-z]{2,4}?):{0,1}(?<port>[0-9]*$)';
- my %domain2check;
- while(<$filehandle>) {
- if (/$pattern/ig) {
- $domain = $+{domain};
- $port = $+{port};
- #print "nunu,file ok",LF,"port: $+{port}",LF,"domain: $+{domain}",LF;
- $domain2check{$domain} = $port;
-
-
-
-
-
- #print check_tlsa();
- }
- else {
- die "wrong content";
- }
-
- foreach my $key (%domain2check)
- {
- $domain = $key;
- $port = $domain2check{$key};
- print $domain, ' ', $port,"\n";
-
-
- if ( "$port" =~ /^\s*$/) { $port = '443'; }
- print $domain, ' ', $port,"\n";
-
- check_tlsa($domain,$port);
- }
-
- }
-}
-
-sub check_cert_expiry {
- my $return = qx($check_date);
- return $return;
-}
-