mirror of https://github.com/mikaku/Monitorix.git
448 lines
12 KiB
Perl
448 lines
12 KiB
Perl
#
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# Monitorix - A lightweight system monitoring tool.
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#
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# Copyright (C) 2005-2013 by Jordi Sanfeliu <jordi@fibranet.cat>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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package fail2ban;
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use strict;
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use warnings;
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use Monitorix;
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use RRDs;
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use POSIX qw(strftime);
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use Exporter 'import';
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our @EXPORT = qw(fail2ban_init fail2ban_update fail2ban_cgi);
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sub fail2ban_init {
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my $myself = (caller(0))[3];
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my ($package, $config, $debug) = @_;
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my $rrd = $config->{base_lib} . $package . ".rrd";
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my $fail2ban = $config->{fail2ban};
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my $info;
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my @ds;
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my @tmp;
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my $n;
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if(-e $rrd) {
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$info = RRDs::info($rrd);
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for my $key (keys %$info) {
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if(index($key, 'ds[') == 0) {
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if(index($key, '.type') != -1) {
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push(@ds, substr($key, 3, index($key, ']') - 3));
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}
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}
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}
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if(scalar(@ds) / 9 != scalar(my @fl = split(',', $fail2ban->{list}))) {
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logger("Detected size mismatch between 'list' (" . scalar(my @fl = split(',', $fail2ban->{list})) . ") and $rrd (" . scalar(@ds) / 9 . "). Resizing it accordingly. All historic data will be lost. Backup file created.");
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rename($rrd, "$rrd.bak");
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}
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}
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if(!(-e $rrd)) {
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logger("Creating '$rrd' file.");
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for($n = 0; $n < scalar(my @fl = split(',', $fail2ban->{list})); $n++) {
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push(@tmp, "DS:fail2ban" . $n . "_j1:GAUGE:120:0:U");
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push(@tmp, "DS:fail2ban" . $n . "_j2:GAUGE:120:0:U");
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push(@tmp, "DS:fail2ban" . $n . "_j3:GAUGE:120:0:U");
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push(@tmp, "DS:fail2ban" . $n . "_j4:GAUGE:120:0:U");
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push(@tmp, "DS:fail2ban" . $n . "_j5:GAUGE:120:0:U");
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push(@tmp, "DS:fail2ban" . $n . "_j6:GAUGE:120:0:U");
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push(@tmp, "DS:fail2ban" . $n . "_j7:GAUGE:120:0:U");
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push(@tmp, "DS:fail2ban" . $n . "_j8:GAUGE:120:0:U");
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push(@tmp, "DS:fail2ban" . $n . "_j9:GAUGE:120:0:U");
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}
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eval {
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RRDs::create($rrd,
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"--step=60",
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@tmp,
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"RRA:AVERAGE:0.5:1:1440",
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"RRA:AVERAGE:0.5:30:336",
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"RRA:AVERAGE:0.5:60:744",
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"RRA:AVERAGE:0.5:1440:365",
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"RRA:MIN:0.5:1:1440",
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"RRA:MIN:0.5:30:336",
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"RRA:MIN:0.5:60:744",
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"RRA:MIN:0.5:1440:365",
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"RRA:MAX:0.5:1:1440",
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"RRA:MAX:0.5:30:336",
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"RRA:MAX:0.5:60:744",
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"RRA:MAX:0.5:1440:365",
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"RRA:LAST:0.5:1:1440",
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"RRA:LAST:0.5:30:336",
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"RRA:LAST:0.5:60:744",
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"RRA:LAST:0.5:1440:365",
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);
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};
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my $err = RRDs::error;
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if($@ || $err) {
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logger("$@") unless !$@;
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if($err) {
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logger("ERROR: while creating $rrd: $err");
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if($err eq "RRDs::error") {
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logger("... is the RRDtool Perl package installed?");
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}
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}
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return;
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}
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}
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$config->{fail2ban_hist} = 0;
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push(@{$config->{func_update}}, $package);
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logger("$myself: Ok") if $debug;
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}
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sub fail2ban_update {
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my $myself = (caller(0))[3];
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my ($package, $config, $debug) = @_;
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my $rrd = $config->{base_lib} . $package . ".rrd";
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my $fail2ban = $config->{fail2ban};
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my $seek_pos;
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my $logsize;
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my @jails;
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my $n;
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my $str;
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my $rrdata = "N";
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if(! -r $config->{fail2ban_log}) {
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logger("Couldn't find file '$config->{fail2ban_log}': $!");
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return;
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}
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$seek_pos = $config->{fail2ban_hist} || 0;
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$seek_pos = defined($seek_pos) ? int($seek_pos) : 0;
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open(IN, $config->{fail2ban_log});
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if(!seek(IN, 0, 2)) {
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logger("Couldn't seek to the end of '$config->{fail2ban_log}': $!");
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return;
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}
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$logsize = tell(IN);
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if($logsize < $seek_pos) {
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$seek_pos = 0;
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}
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if(!seek(IN, $seek_pos, 0)) {
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logger("Couldn't seek to $seek_pos in '$config->{fail2ban_log}': $!");
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return;
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}
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if($config->{fail2ban_hist} > 0) { # avoids initial peak
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my $date = strftime("%Y-%m-%d", localtime);
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while(<IN>) {
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if(/^$date/) {
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my $e = 0;
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while($e < scalar(my @fl = split(',', $fail2ban->{list}))) {
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my $e2 = 0;
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foreach my $i (split(',', $fail2ban->{desc}->{$e})) {
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($str = trim($i)) =~ s/\[/\\[/;
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$str =~ s/\]/\\]/;
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$jails[$e][$e2] = 0 unless defined $jails[$e][$e2];
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if(/ $str Ban /) {
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$jails[$e][$e2]++;
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}
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$e2++;
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}
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$e++;
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}
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}
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}
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}
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close(IN);
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my $e = 0;
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while($e < scalar(my @fl = split(',', $fail2ban->{list}))) {
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for($n = 0; $n < 9; $n++) {
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$jails[$e][$n] = 0 unless defined $jails[$e][$n];
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$rrdata .= ":" . $jails[$e][$n];
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}
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$e++;
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}
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$config->{fail2ban_hist} = $logsize;
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RRDs::update($rrd, $rrdata);
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logger("$myself: $rrdata") if $debug;
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my $err = RRDs::error;
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logger("ERROR: while updating $rrd: $err") if $err;
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}
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sub fail2ban_cgi {
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my ($package, $config, $cgi) = @_;
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my $fail2ban = $config->{fail2ban};
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my @rigid = split(',', $fail2ban->{rigid});
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my @limit = split(',', $fail2ban->{limit});
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my $tf = $cgi->{tf};
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my $colors = $cgi->{colors};
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my $graph = $cgi->{graph};
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my $silent = $cgi->{silent};
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my $u = "";
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my $width;
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my $height;
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my @riglim;
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my @PNG;
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my @PNGz;
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my @tmp;
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my @tmpz;
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my @CDEF;
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my $n;
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my $n2;
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my $str;
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my $err;
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my @LC = (
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"#4444EE",
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"#EEEE44",
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"#44EEEE",
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"#EE44EE",
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"#888888",
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"#E29136",
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"#44EE44",
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"#448844",
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"#EE4444",
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);
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my $rrd = $config->{base_lib} . $package . ".rrd";
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my $title = $config->{graph_title}->{$package};
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my $PNG_DIR = $config->{base_dir} . "/" . $config->{imgs_dir};
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$title = !$silent ? $title : "";
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# text mode
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#
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if(lc($config->{iface_mode}) eq "text") {
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if($title) {
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main::graph_header($title, 2);
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print(" <tr>\n");
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print(" <td bgcolor='$colors->{title_bg_color}'>\n");
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}
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my (undef, undef, undef, $data) = RRDs::fetch("$rrd",
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"--start=-$tf->{nwhen}$tf->{twhen}",
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"AVERAGE",
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"-r $tf->{res}");
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$err = RRDs::error;
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print("ERROR: while fetching $rrd: $err\n") if $err;
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my $line1;
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my $line2;
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my $line3;
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print(" <pre style='font-size: 12px; color: $colors->{fg_color}';>\n");
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print(" ");
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for($n = 0; $n < scalar(my @fl = split(',', $fail2ban->{list})); $n++) {
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$line1 = "";
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foreach my $i (split(',', $fail2ban->{desc}->{$n})) {
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$str = sprintf("%20s", substr(trim($i), 0, 20));
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$line1 .= " ";
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$line2 .= sprintf(" %20s", $str);
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$line3 .= "---------------------";
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}
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if($line1) {
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my $i = length($line1);
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printf(sprintf("%${i}s", sprintf("%s", trim($fl[$n]))));
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}
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}
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print("\n");
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print("Time$line2\n");
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print("----$line3 \n");
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my $line;
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my @row;
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my $time;
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my $n2;
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my $n3;
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my $from;
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my $to;
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for($n = 0, $time = $tf->{tb}; $n < ($tf->{tb} * $tf->{ts}); $n++) {
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$line = @$data[$n];
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$time = $time - (1 / $tf->{ts});
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printf(" %2d$tf->{tc} ", $time);
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for($n2 = 0; $n2 < scalar(my @fl = split(',', $fail2ban->{list})); $n2++) {
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$n3 = 0;
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foreach my $i (split(',', $fail2ban->{desc}->{$n2})) {
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$from = $n2 * 9 + $n3++;
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$to = $from + 1;
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my ($j) = @$line[$from..$to];
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@row = ($j);
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printf("%20d ", @row);
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}
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}
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print("\n");
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}
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print(" </pre>\n");
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if($title) {
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print(" </td>\n");
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print(" </tr>\n");
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main::graph_footer();
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}
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print(" <br>\n");
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return;
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}
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# graph mode
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#
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if($silent eq "yes" || $silent eq "imagetag") {
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$colors->{fg_color} = "#000000"; # visible color for text mode
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$u = "_";
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}
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if($silent eq "imagetagbig") {
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$colors->{fg_color} = "#000000"; # visible color for text mode
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$u = "";
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}
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for($n = 0; $n < scalar(my @fl = split(',', $fail2ban->{list})); $n++) {
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$str = $u . $package . $n . "." . $tf->{when} . ".png";
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push(@PNG, $str);
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unlink("$PNG_DIR" . $str);
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if(lc($config->{enable_zoom}) eq "y") {
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$str = $u . $package . $n . "z." . $tf->{when} . ".png";
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push(@PNGz, $str);
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unlink("$PNG_DIR" . $str);
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}
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}
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if(trim($rigid[0]) eq 1) {
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push(@riglim, "--upper-limit=" . trim($limit[0]));
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} else {
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if(trim($rigid[0]) eq 2) {
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push(@riglim, "--upper-limit=" . trim($limit[0]));
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push(@riglim, "--rigid");
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}
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}
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$n = 0;
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while($n < scalar(my @fl = split(',', $fail2ban->{list}))) {
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if($title) {
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if($n == 0) {
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main::graph_header($title, $fail2ban->{graphs_per_row});
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}
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print(" <tr>\n");
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}
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for($n2 = 0; $n2 < $fail2ban->{graphs_per_row}; $n2++) {
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last unless $n < scalar(my @fl = split(',', $fail2ban->{list}));
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if($title) {
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print(" <td bgcolor='" . $colors->{title_bg_color} . "'>\n");
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}
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undef(@tmp);
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undef(@tmpz);
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undef(@CDEF);
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my $e = 0;
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foreach my $i (split(',', $fail2ban->{desc}->{$n})) {
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$str = sprintf("%-25s", substr(trim($i), 0, 25));
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push(@tmp, "LINE1:j" . ($e + 1) . $LC[$e] . ":$str");
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push(@tmp, "GPRINT:j" . ($e + 1) . ":LAST: Cur\\:%2.0lf\\g");
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push(@tmp, "GPRINT:j" . ($e + 1) . ":AVERAGE: Avg\\:%2.0lf\\g");
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push(@tmp, "GPRINT:j" . ($e + 1) . ":MIN: Min\\:%2.0lf\\g");
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push(@tmp, "GPRINT:j" . ($e + 1) . ":MAX: Max\\:%2.0lf\\n");
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push(@tmpz, "LINE2:j" . ($e + 1) . $LC[$e] . ":$str");
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$e++;
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}
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while($e < 9) {
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push(@tmp, "COMMENT: \\n");
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$e++;
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}
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if(lc($config->{show_gaps}) eq "y") {
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push(@tmp, "AREA:wrongdata#$colors->{gap}:");
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push(@tmpz, "AREA:wrongdata#$colors->{gap}:");
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push(@CDEF, "CDEF:wrongdata=allvalues,UN,INF,UNKN,IF");
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}
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($width, $height) = split('x', $config->{graph_size}->{medium});
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$str = substr(trim($fl[$n]), 0, 25);
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RRDs::graph("$PNG_DIR" . "$PNG[$n]",
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"--title=$str ($tf->{nwhen}$tf->{twhen})",
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"--start=-$tf->{nwhen}$tf->{twhen}",
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"--imgformat=PNG",
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"--vertical-label=bans/s",
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"--width=$width",
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"--height=$height",
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@riglim,
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"--lower-limit=0",
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@{$cgi->{version12}},
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@{$cgi->{version12_small}},
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@{$colors->{graph_colors}},
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"DEF:j1=$rrd:fail2ban" . $n . "_j1:AVERAGE",
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"DEF:j2=$rrd:fail2ban" . $n . "_j2:AVERAGE",
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"DEF:j3=$rrd:fail2ban" . $n . "_j3:AVERAGE",
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"DEF:j4=$rrd:fail2ban" . $n . "_j4:AVERAGE",
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"DEF:j5=$rrd:fail2ban" . $n . "_j5:AVERAGE",
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"DEF:j6=$rrd:fail2ban" . $n . "_j6:AVERAGE",
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"DEF:j7=$rrd:fail2ban" . $n . "_j7:AVERAGE",
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"DEF:j8=$rrd:fail2ban" . $n . "_j8:AVERAGE",
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"DEF:j9=$rrd:fail2ban" . $n . "_j9:AVERAGE",
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"CDEF:allvalues=j1,j2,j3,j4,j5,j6,j7,j8,j9,+,+,+,+,+,+,+,+",
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@CDEF,
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@tmp);
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$err = RRDs::error;
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print("ERROR: while graphing $PNG_DIR" . "$PNG[$n]: $err\n") if $err;
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if(lc($config->{enable_zoom}) eq "y") {
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($width, $height) = split('x', $config->{graph_size}->{zoom});
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RRDs::graph("$PNG_DIR" . "$PNGz[$n]",
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"--title=$str ($tf->{nwhen}$tf->{twhen})",
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"--start=-$tf->{nwhen}$tf->{twhen}",
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"--imgformat=PNG",
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"--vertical-label=bans/s",
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"--width=$width",
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"--height=$height",
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@riglim,
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"--lower-limit=0",
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@{$cgi->{version12}},
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@{$cgi->{version12_small}},
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@{$colors->{graph_colors}},
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"DEF:j1=$rrd:fail2ban" . $n . "_j1:AVERAGE",
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"DEF:j2=$rrd:fail2ban" . $n . "_j2:AVERAGE",
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"DEF:j3=$rrd:fail2ban" . $n . "_j3:AVERAGE",
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"DEF:j4=$rrd:fail2ban" . $n . "_j4:AVERAGE",
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"DEF:j5=$rrd:fail2ban" . $n . "_j5:AVERAGE",
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"DEF:j6=$rrd:fail2ban" . $n . "_j6:AVERAGE",
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"DEF:j7=$rrd:fail2ban" . $n . "_j7:AVERAGE",
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"DEF:j8=$rrd:fail2ban" . $n . "_j8:AVERAGE",
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"DEF:j9=$rrd:fail2ban" . $n . "_j9:AVERAGE",
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"CDEF:allvalues=j1,j2,j3,j4,j5,j6,j7,j8,j9,+,+,+,+,+,+,+,+",
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@CDEF,
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@tmpz);
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$err = RRDs::error;
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print("ERROR: while graphing $PNG_DIR" . "$PNGz[$n]: $err\n") if $err;
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}
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if($title || ($silent =~ /imagetag/ && $graph =~ /fail2ban$n/)) {
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if(lc($config->{enable_zoom}) eq "y") {
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if(lc($config->{disable_javascript_void}) eq "y") {
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print(" <a href=\"" . $config->{url} . "/" . $config->{imgs_dir} . $PNGz[$n] . "\"><img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG[$n] . "' border='0'></a>\n");
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}
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else {
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print(" <a href=\"javascript:void(window.open('" . $config->{url} . "/" . $config->{imgs_dir} . $PNGz[$n] . "','','width=" . ($width + 115) . ",height=" . ($height + 100) . ",scrollbars=0,resizable=0'))\"><img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG[$n] . "' border='0'></a>\n");
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}
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|
} else {
|
|
print(" <img src='" . $config->{url} . "/" . $config->{imgs_dir} . $PNG[$n] . "'>\n");
|
|
}
|
|
}
|
|
if($title) {
|
|
print(" </td>\n");
|
|
}
|
|
$n++;
|
|
}
|
|
if($title) {
|
|
print(" </tr>\n");
|
|
}
|
|
}
|
|
if($title) {
|
|
main::graph_footer();
|
|
}
|
|
print(" <br>\n");
|
|
return;
|
|
}
|
|
|
|
1;
|