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This commit is contained in:
2024-03-09 15:36:42 +01:00
parent 58e88da2d8
commit 08b6b503a6
22 changed files with 1721 additions and 0 deletions

51
bin/parserfilter Executable file
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#!/usr/bin/env perl
use strict;
use warnings;
use diagnostics;
use sigtrap qw/handler signal_handler normal-signals/;
use Tie::Syslog;
use My::Savepid qw(savepid);
use My::parser::parser;
use Glib;
my $config_file = '/usr/local/etc/parserfilter.conf';
my $pidfile = '/var/run/parserfilter.pid';
my $program = $0;
unless(-f $config_file) {
die "Configuration file $config_file does not exist";
}
my $x;
my $loop = Glib::MainLoop->new;
my $parser = My::parser::parser->new($config_file);
my $time = Glib::Timeout->add(1000, \&loopsie);
if(my $tp = fork) {
exit 0;
} else {
my $pid = $$;
$x = tie *STDERR, 'Tie::Syslog', 'local0.err',$program,'pid','unix';
$x->ExtendedSTDERR();
&savepid($pid,$pidfile);
close STDIN;
$parser->load_parsers;
$loop->run;
}
sub loopsie {
my $result = $parser->parse_all;
return 1 if($result);
return 0;
}
sub signal_handler {
my $signal = shift;
if($signal eq 'HUP') {
$parser->{'config'}->{'logger'}->reload_log;
$parser->{'config'}->{'logger'}->log('Log reloaded');
} else {
$loop->quit;
$parser->{'config'}->{'logger'}->log("$program stopped");
}
}

46
bin/parserfilter-tester Executable file
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#!/usr/bin/env perl
use strict;
use warnings;
use Getopt::Long;
use My::parser::stats;
my $module;
my @modules = ('ssh','dovecot','exim','apache','gitea_ssh');
my $program = $0;
GetOptions ("module=s" => \$module); #Only test one module
unless($module) {
print 'No module specified, use argument --module=(ssh|dovecot|exim|apache|gitea_ssh)'."\n";
exit;
}
my @matches = grep { /$module/ } @modules;
unless(@matches) {
print 'Unsupported module '.$module.' specified, use argument --module=(ssh|dovecot|exim|apache|gitea_ssh)'."\n";
exit;
}
print "Please paste a line to parse here:\n";
my $frompipe = <STDIN>;
chomp($frompipe); #One line is fine for us, user may fuck up, but we're good..
my $parser = &load($module);
my $result = $parser->parser($frompipe);
if($result->{'retval'}) {
print 'Parser said: '.$result->{'retmsg'}."\n";
print 'Regarded as a hostile action'."\n" if($result->{'hostile'});
print 'Host: '.$result->{'host'}."\n";
} else {
print 'Parser found no match'."\n";
}
sub load {
my $parser = shift;
my $filename = 'My/parser/'.$parser.'_parser.pm';
my $newclass;
eval {
require $filename;
my $classname = 'My::parser::'.$parser.'_parser';
$newclass = $classname->new || die "Failed to load parser for $parser";
} or do {
my $e = $@;
print 'Could not load parser '.$module.' from file '.$filename.': '.$e."\n";
exit;
};
return $newclass;
}