Monitorix/monitorix

967 lines
30 KiB
Perl
Executable File

#!/usr/bin/env perl
#
# Monitorix - A lightweight system monitoring tool.
#
# Copyright (C) 2005-2022 by Jordi Sanfeliu <jordi@fibranet.cat>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
require 5.006;
use strict;
use warnings;
use FindBin qw($Bin);
use lib $Bin . "/lib", "/usr/lib/monitorix";
use Monitorix;
use POSIX qw(WNOHANG LC_TIME setlocale uname pause setsid);
use Config::General;
use Getopt::Std;
use Cwd qw(abs_path);
use Fcntl qw(:flock);
# Force a standard locale
$ENV{LANG} = "";
setlocale(LC_TIME, "C");
$SIG{'INT' } = 'INT_handler';
$SIG{'ABRT'} = 'INT_handler';
$SIG{'QUIT'} = 'INT_handler';
$SIG{'TRAP'} = 'INT_handler';
$SIG{'STOP'} = 'INT_handler';
$SIG{'TERM'} = 'INT_handler';
$SIG{'HUP' } = 'HUP_handler';
use constant VERSION => "3.15.0";
use constant RELDATE => "07-Dec-2022";
my @suppsys = ("Linux", "FreeBSD", "OpenBSD", "NetBSD");
our %config;
our %options;
sub INT_handler {
my ($signal) = @_;
logger("SIG$signal caught.");
flush_accounting_rules(\%config, $options{d}) unless $options{u};
if(lc($config{httpd_builtin}->{enabled} || "") eq "y") {
kill(15, $config{httpd_pid});
}
logger("Exiting.");
exit(0);
}
sub HUP_handler {
my ($signal) = @_;
my $myself = (caller(0))[3];
return if $options{n}; # only continue if it's a daemon
my (undef, undef, $uid) = getpwnam($config{httpd_builtin}->{user});
my (undef, undef, $gid) = getgrnam($config{httpd_builtin}->{group});
logger("SIG$signal caught.");
# upon receiving SIGHUP a new logfile is opened
if($config{log_file}) {
close(STDOUT);
close(STDERR);
open(STDOUT, ">> $config{log_file}") || logger("Can't write to LOG: $!");
open(STDERR, ">> $config{log_file}") || logger("Can't write to LOG: $!");
chmod(0600, $config{log_file});
logger("$myself: opening a new log file.");
}
# restart HTTP built-in
if(lc($config{httpd_builtin}->{enabled} || "") eq "y") {
if(defined($config{httpd_pid})) {
require HTTPServer;
kill(15, $config{httpd_pid});
kill(9, $config{httpd_pid});
httpd_setup(\%config, $options{u});
logger("Restarted HTTP built-in server (pid $config{httpd_pid}).") if (defined($config{httpd_pid}));
}
}
}
sub daemonize {
if($config{log_file}) {
open(STDIN, "< /dev/null") || die "Can't read /dev/null: $!";
open(STDOUT, ">> $config{log_file}") || die "Can't write to LOG: $!";
}
umask(022) || die "Unable to umask 022: $!";
exit if fork(); # parent exits
(setsid() != -1) || die "Can't start a new session: $!";
if($config{log_file}) {
open(STDERR, ">> $config{log_file}") || die "Can't write to LOG: $!";
}
}
sub usage {
print(STDERR << "EOF");
Usage: monitorix -c configfile [-p pidfile] [-d none | graph[,graph] | all ] [-v] [-n] [-u] [-s splitpolicy] [-e report=<timeframe>,graphs=<graph>[,<graph>,...],to=<email>]
EOF
exit(1);
}
sub create_index {
my $myself = (caller(0))[3];
my $n;
my $gname;
my $piwik_code = "";
my ($piwik_url, $piwik_sid, $piwik_img);
my $text_when_all;
my $value_when_all;
my $when_all_code = "";
# keep backwards compatibility for v3.2.1 and less
if(ref($config{theme}) ne "HASH") {
logger("$myself: WARNING: the <theme> option is not valid. Please consider upgrading your configuration file. Defaulting to white theme.");
delete($config{theme});
$config{theme}->{white}->{main_bg} = "FFFFFF";
$config{theme}->{white}->{main_fg} = "000000";
$config{theme}->{white}->{title_bg} = "777777";
$config{theme}->{white}->{title_fg} = "CCCC00";
$config{theme}->{white}->{graph_bg} = "CCCCCC";
$config{theme_color} = "white";
}
my $theme = $config{theme_color} || "white";
if(!$config{theme}->{$theme}) {
logger("$myself: ERROR: invalid value in 'theme_color' option. Defaulting to white theme.");
$theme = $config{theme_color} = "white";
}
# Default option in 'Graph' list when 'All' is selected in 'Hostname' list.
#
# The following small JavaScript function is intended to avoid to select to view
# accidentally (unless explicitly selected by the user) a huge amount of remote
# images that will hang the browser for a while.
$text_when_all = $config{multihost}->{default_option_when_all} || "";
$text_when_all = "System load" if !$text_when_all;
my @match = grep { $config{graphs}{$_} eq $text_when_all } keys %{$config{graphs}};
$value_when_all = $match[0] || "";
if(!$value_when_all) {
logger("$myself: ERROR: invalid value in 'default_option_when_all' option ('$text_when_all').");
$value_when_all = "_system1";
}
$when_all_code = <<"EOF";
<!-- Default option code when 'All' is selected in 'Hostname' list -->
<script type="text/javascript">
function auto_select() {
var host = document.getElementById("hostname");
var h = host.options[host.selectedIndex].text;
var graph = document.getElementById("graph");
var g = graph.options[graph.selectedIndex].text;
if(h == "All" && g == "All graphs") {
document.getElementById("graph").value = "$value_when_all";
}
return true;
}
</script>
<!-- End Default option code when 'All' is selected in 'Hostname' list -->
EOF
# Piwik tracking code
if(lc($config{piwik_tracking}->{enabled} || "") eq "y") {
$piwik_url = $config{piwik_tracking}->{url} || "";
$piwik_sid = $config{piwik_tracking}->{sid} || "";
$piwik_img = $config{piwik_tracking}->{img} || "";
$piwik_code = <<"EOF";
<!-- Piwik -->
<script type="text/javascript">
var _paq = _paq || [];
_paq.push(['trackPageView']);
_paq.push(['enableLinkTracking']);
(function() {
var u=(("https:" == document.location.protocol) ? "https" : "http") + "$piwik_url";
_paq.push(['setTrackerUrl', u+'piwik.php']);
_paq.push(['setSiteId', $piwik_sid]);
var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0]; g.type='text/javascript';
g.defer=true; g.async=true; g.src=u+'piwik.js';
s.parentNode.insertBefore(g,s);
})();
</script>
<noscript>
<p><img src="$piwik_img" style="border:0;" alt=""/></p>
</noscript>
<!-- End Piwik Code -->
EOF
}
# force to only one trailing slash
(my $base_url = $config{base_url}) =~ s/\/*$/\//;
(my $base_cgi = $config{base_cgi}) =~ s/\/*$/\//;
if(!open(OUT, "> $config{base_dir}/index.html")) {
die "Unable to create '${config{base_dir}}index.html': $!";
}
my $css = sprintf("%scss/%s.css", $base_url, $theme);
print(OUT <<EOF);
<!DOCTYPE html "-//W3C//DTD HTML 4.01 Final//EN">
<html>
<head>
<title>$config{title}</title>
<link rel="shortcut icon" href="$base_url$config{favicon}">
<link href="$css" rel="stylesheet">
</head>
<body class="index-body">
$piwik_code
$when_all_code
<center>
<p>
<br>
<table class='startpage-header-table'>
<tr>
<td class='startpage-header-table'>
<a href="$config{logo_top_url}"><img src="$base_url$config{logo_top}" border="0"></a>
</td>
</tr>
<tr>
<td class='startpage-header-table'>
<h2 align="right">v@{[VERSION]}</h2>
</td>
</tr>
</table>
<p>
<form action="${base_cgi}monitorix.cgi" method="get">
<table>
<tr>
<td class='td-title'>
<b>&nbsp;Hostname&nbsp;</b>
</td>
<td class='td-title'>
<b>&nbsp;Graph&nbsp;</b>
</td>
</tr>
<tr>
EOF
print(OUT " <td>\n");
print(OUT " <select name='mode' size='1' id='hostname' onchange='auto_select()'>\n");
print(OUT " <optgroup label='Local Host'>\n");
print(OUT " <option value='localhost'>localhost</option>\n");
print(OUT " </optgroup>\n");
if(scalar(my @remotehost_list = split(',', $config{multihost}->{remotehost_list})) && lc($config{multihost}->{enabled} || "") eq "y") {
print(OUT " <optgroup label='Multihost'>\n");
print(OUT " <option value='multihost.all'>All</option>\n");
for($n = 0; $n < scalar(@remotehost_list); $n++) {
print(OUT " <option value='multihost.$n'>" . trim($remotehost_list[$n]) . "</option>\n");
}
print(OUT " </optgroup>\n");
if(lc($config{multihost}->{groups} || "") eq "y" ) {
my @remotegroup_list = split(',', $config{multihost}->{remotegroup_list});
print(OUT " <optgroup label='Multihost-Groups'>\n");
print(OUT " <option value='multihost.group'>All Groups</option>\n");
for($n = 0; $n < scalar(@remotegroup_list); $n++) {
print(OUT " <option value='multihost.group$n'>" . trim($remotegroup_list[$n]) . "</option>\n");
}
print(OUT " </optgroup>\n");
}
}
if(scalar(my @tal = split(',', $config{traffacct}->{list})) && lc($config{traffacct}->{enabled} || "") eq "y") {
print(OUT " <optgroup label='Traffic Accounting'>\n");
print(OUT " <option value='traffacct.all'>All</option>\n");
for($n = 0; $n < scalar(@tal); $n++) {
print(OUT " <option value='traffacct.$n'>" . trim($tal[$n]) . "</option>\n");
}
print(OUT " </optgroup>\n");
}
print(OUT " </select>\n");
print(OUT " </td>\n");
print(OUT " <td>\n");
print(OUT " <select name='graph' size='1' id='graph'>\n");
print(OUT " <option value='all'>All graphs</option>\n");
foreach (split(',', $config{graph_name})) {
my $g = trim($_);
if(lc($config{graph_enable}->{$g} || "") eq "y") {
print(OUT " <optgroup label='" . $config{graph_title}->{$g} . "'>\n");
if($g eq "proc") {
for($n = 0; $n < $config{proc}->{max}; $n++) {
$gname = "_" . $g;
print(OUT " <option value='" . $gname . $n . "'>" . $config{graphs}->{$gname} . " " . $n . "</option>\n");
}
next;
}
if($g eq "gensens") {
for($n = 0; $n < keys %{$config{gensens}->{list}}; $n++) {
my $name = trim($config{gensens}->{title}->{$n});
$gname = "_" . $g;
print(OUT " <option value='" . $gname . $n . "'>" . $name . "</option>\n");
}
next;
}
if($g eq "ipmi") {
for($n = 0; $n < scalar(my @ipmi_list = split(',', $config{ipmi}->{list})); $n++) {
my $name = trim($ipmi_list[$n]);
$gname = "_" . $g;
print(OUT " <option value='" . $gname . $n . "'>" . $name . "</option>\n");
}
next;
}
if($g eq "ambsens") {
for($n = 0; $n < scalar(my @ambsens_list = split(',', $config{ambsens}->{list})); $n++) {
my $name = trim($ambsens_list[$n]);
$gname = "_" . $g;
print(OUT " <option value='" . $gname . $n . "'>" . $name . "</option>\n");
}
next;
}
if($g eq "fs" || $g eq "process") {
$n = 0;
foreach my $k (sort keys %{$config{graphs}}) {
if($k =~ m/$g/) {
$gname = "_" . $g . ++$n;
my $gname2 = "_" . $g . "0" . $n;
if($config{graphs}->{$gname}) {
print(OUT " <option value='" . $gname2 ."'>" . $config{graphs}->{$gname} . "</option>\n");
}
}
}
next;
}
if($g eq "du") {
for($n = 0; $n < scalar(my @du_list = split(',', $config{du}->{list})); $n++) {
my $name = trim($du_list[$n]);
$gname = "_" . $g;
print(OUT " <option value='" . $gname . $n . "'>" . $name . "</option>\n");
}
next;
}
if($g eq "net") {
my $n2;
for($n = 0; $n < scalar(my @nl = split(',', $config{net}->{list})); $n++) {
$gname = "_" . $g;
for($n2 = 1; $n2 <= 3; $n2++) {
my $str = trim($nl[$n]) . " " . $config{graphs}->{$gname . $n2};
print(OUT " <option value='" . $gname . $n . $n2 . "'>" . $str . "</option>\n");
}
}
next;
}
if($g eq "serv") {
for($n = 0; $n < scalar(my @serv_list = (sort keys %{$config{serv}->{list}})); $n++) {
my $name = trim($serv_list[$n]);
$gname = "_" . $g;
print(OUT " <option value='" . $gname . $n . "'>" . $name . "</option>\n");
}
next;
}
if($g eq "port") {
for($n = 0; $n < $config{port}->{max} && $n < scalar(my @port_list = split(',', $config{port}->{list})); $n++) {
my $num = trim($port_list[$n]);
if(!$config{port}->{desc}->{$num}) {
logger("$myself: port number '$num' listed but not defined.");
next;
}
my $name = trim((split(',', $config{port}->{desc}->{$num}))[0]);
my $pcon = trim((split(',', $config{port}->{desc}->{$num}))[2]);
$gname = "_" . $g;
foreach my $c (split('/', $pcon)) {
$c = uc(trim($c));
print(OUT " <option value='" . $gname . $n . "'>" . $config{graphs}->{$gname} . " " . $num . " (" . $c . "-" . $name . ")" . "</option>\n");
}
}
next;
}
if($g eq "fail2ban") {
for($n = 0; $n < scalar(my @fail2ban_list = split(',', $config{fail2ban}->{list})); $n++) {
my $name = trim($fail2ban_list[$n]);
$gname = "_" . $g;
print(OUT " <option value='" . $gname . $n . "'>" . $name . "</option>\n");
}
next;
}
$n = 0;
foreach my $k (sort keys %{$config{graphs}}) {
if($k =~ m/$g/) {
$gname = "_" . $g . ++$n;
if($config{graphs}->{$gname}) {
print(OUT " <option value='" . $gname ."'>" . $config{graphs}->{$gname} . "</option>\n");
}
}
}
print(OUT " </optgroup>\n");
}
}
print(OUT " </select>\n");
print(OUT " </td>\n");
print(OUT <<EOF);
</tr>
</table>
<p>
<table>
<tr>
EOF
if(lc($config{enable_hourly_view} || "") eq "y" ) {
print(OUT <<EOF);
<td class='td-title'>
<label>
<input type="radio" name="when" value="1hour">
<b>Hourly&nbsp;</b>
</label>
</td>
EOF
}
print(OUT <<EOF);
<td class='td-title'>
<label>
<input type="radio" checked name="when" value="1day">
<b>Daily&nbsp;</b>
</label>
</td>
<td class='td-title'>
<label>
<input type="radio" name="when" value="1week">
<b>Weekly&nbsp;</b>
</label>
</td>
<td class='td-title'>
<label>
<input type="radio" name="when" value="1month">
<b>Monthly&nbsp;</b>
</label>
</td>
<td class='td-title'>
<label>
<input type="radio" name="when" value="1year">
<b>Yearly&nbsp;</b>
</label>
</td>
</tr>
EOF
if($config{max_historic_years} > 1) {
print(OUT " <tr>\n");
}
for($n = 2; $n <= $config{max_historic_years}; $n++) {
if($n > 2 && (($n - 2) % 4) == 0) {
print(OUT " </tr>\n");
print(OUT " <tr>\n");
}
print(OUT <<EOF);
<td class='td-title'>
<label>
<input type="radio" name="when" value="${n}year">
<b>$n Years&nbsp;</b>
</label>
</td>
EOF
}
if($config{max_historic_years} > 1) {
print(OUT " </tr>\n");
}
print(OUT <<EOF);
</table>
<p>
<input type="hidden" name="color" value="$theme">
<input type="submit" value=" Ok ">
</form>
</center>
</body>
</html>
EOF
close(OUT);
}
# Main
# ----------------------------------------------------------------------------
getopts("c:p:d:vnus:e:", \%options) || usage();
if($options{v}) {
print("Monitorix version " . VERSION . " (" . RELDATE . ")\n");
print("by Jordi Sanfeliu <jordi\@fibranet.cat>\n");
print("https://www.monitorix.org/\n\n");
exit(0);
}
if(!$options{c}) {
usage();
exit(1);
}
$options{c} = (abs_path($options{c}) || $options{c}) unless $^V lt 5.6.2;
if(!stat($options{c})) {
die "Can't open file '$options{c}': $!";
}
# load main configuration file
$options{s} = "guess" if !defined($options{s});
my $conf = new Config::General(
-ConfigFile => $options{c},
-SplitPolicy => $options{s},
);
%config = $conf->getall;
$config{debug} = ();
$config{func_update} = ();
# get the current OS and kernel version and check its support
my $release;
($config{os}, undef, $release) = uname();
if(!($release =~ m/^(\d+)\.(\d+)/)) {
die "FATAL: unable to get the kernel version.";
}
$config{kernel} = "$1.$2";
if(!grep {$_ eq $config{os}} @suppsys) {
die "FATAL: your operating system ($config{os}) is not supported.";
}
if(grep {$_ eq $config{os}} ("FreeBSD", "OpenBSD", "NetBSD")) {
$SIG{'CHLD'} = 'DEFAULT';
}
$0 = sprintf("%s %s%s%s%s%s%s",
$^V lt 5.6.2 ? "monitorix" : abs_path($0),
$options{c} ? "-c $options{c}" : "",
$options{p} ? " -p $options{p}" : "",
$options{d} ? " -d $options{d}" : "",
$options{v} ? " -v" : "",
$options{n} ? " -n" : "",
$options{u} ? " -u" : "");
daemonize() unless $options{n};
logger("Starting Monitorix version " . VERSION . " (pid $$).");
logger("Loaded main configuration file '$options{c}'.");
# save the pidfile
if($options{p}) {
$options{p} = abs_path($options{p});
open(OUT, "> $options{p}")
|| die "Could not open '$options{p}' for writing: $!";
print(OUT "$$");
close(OUT);
}
# change to a safety directory
unless(chdir("/tmp")) {
die "Can't chdir to /tmp: $!";
}
if($options{d}) {
if($options{d} ne "none" && $options{d} ne "all") {
@{$config{debug}} = split(',', $options{d});
foreach my $t (@{$config{debug}}) {
if(!grep {trim($_) eq $t} (split(',', $config{graph_name} . ", traffacct, emailreports"))) {
die "Invalid debug key '$t'";
}
}
}
logger("Entering in debug mode.");
logger("Changed process name to '$0'.");
}
# load additional configuration files
if($config{include_dir} && opendir(DIR, $config{include_dir})) {
my @files = grep { !/^[.]/ } readdir(DIR);
closedir(DIR);
foreach my $c (sort @files) {
next unless -f $config{include_dir} . "/$c";
next unless $c =~ m/\.conf$/;
logger("Loading extra configuration file '$config{include_dir}/$c'.");
my $conf_inc = new Config::General(
-ConfigFile => $config{include_dir} . "/$c",
-SplitPolicy => $options{s},
);
my %config_inc = $conf_inc->getall;
while(my ($key, $val) = each(%config_inc)) {
if(ref($val) eq "HASH") {
# two level options (a subsection)
while(my ($key2, $val2) = each(%{$val})) {
# delete first this whole subsection
delete($config{$key}->{$key2});
if(ref($val2) eq "HASH") {
# three level options (a subsubsection)
while(my ($key3, $val3) = each(%{$val2})) {
$config{$key}->{$key2}->{$key3} = $val3;
delete $config_inc{$key}->{$key2}->{$key3};
}
next;
}
$config{$key}->{$key2} = $val2;
delete $config_inc{$key}->{$key2};
}
next;
}
# graph_name option is special
#if($key eq "graph_name") {
# $config{graph_name} .= ", $val";
# delete $config_inc{$key};
# next;
#}
if($key eq "additional_graph_name") {
$config{graph_name} .= ", $val";
delete $config_inc{$key};
next;
}
# one level options
$config{$key} = $val;
delete $config_inc{$key};
}
}
} else {
logger("Can't read directory '$config{include_dir}'. $!")
if $config{include_dir};
}
# make sure that some options are correctly defined
die "ERROR: 'base_dir' option does not exist.\n" if(!defined($config{base_dir}));
die "ERROR: 'base_lib' option does not exist.\n" if(!defined($config{base_lib}));
die "ERROR: 'base_url' option does not exist.\n" if(!defined($config{base_url}));
die "ERROR: 'base_cgi' option does not exist.\n" if(!defined($config{base_cgi}));
if(!$config{max_historic_years}) {
logger("WARNING: the 'max_historic_years' option doesn't exist. Please consider upgrading your configuration file.");
$config{max_historic_years} = 1;
}
if(!$config{net}->{max}) {
logger("WARNING: the 'max' option in 'net.pm' doesn't exist. Please consider upgrading your configuration file.");
$config{net}->{max} = 10;
}
if(!$config{global_zoom}) {
logger("WARNING: the 'global_zoom' option is not valid or doesn't exist. Please consider upgrading your configuration file.");
# it's set in 'monitorix.cgi'
}
if(!$config{image_format}) {
logger("WARNING: the 'image_format' option is not valid or doesn't exist. Please consider upgrading your configuration file.");
# it's set in 'monitorix.cgi'
}
if(!defined($config{logo_top_url})) {
logger("WARNING: the 'logo_top_url' option doesn't exist. Please consider upgrading your configuration file.");
$config{logo_top_url} = "https://www.monitorix.org/";
}
if(lc($config{httpd_builtin}->{enabled} || "") eq "y" && !$config{httpd_builtin}->{autocheck_responsiveness}) {
logger("WARNING: the 'autocheck_responsiveness' option is not valid or doesn't exist. Please consider upgrading your configuration file.");
$config{httpd_builtin}->{autocheck_responsiveness} = "y";
}
if(lc($config{multihost}->{enabled} || "") eq "y" && !$config{multihost}->{default_option_when_all}) {
logger("WARNING: the 'default_option_when_all' option is not valid or doesn't exist. Please consider upgrading your configuration file.");
$config{multihost}->{default_option_when_all} = "System load";
}
if(!$config{use_external_firewall}) {
$config{use_external_firewall} = "n";
}
# one-shot for the 'emailreports' module
if($options{e}) {
my $em_report;
my $em_graphs;
my $em_to;
my $em_when;
foreach (split(',', $options{e})) {
my $em = trim($_);
if($em =~ m/^report=(hourly|daily|weekly|monthly|yearly)$/) {
$em_report=$1;
}
if($em =~ m/^graphs=(\S+)$/) {
$em_graphs=$1;
$em_graphs =~ s/\+/\,/g;
}
if($em =~ m/^to=(\S+)$/) {
$em_to=$1;
}
}
die "Invalid or not defined time frame in 'report='." unless $em_report;
die "Unspecified graph names in 'graphs='." unless $em_graphs;
die "Unspecified destination email address in 'to='." unless $em_to;
my $emailreports = $config{emailreports};
$emailreports->{$em_report}->{graphs} = $em_graphs;
$emailreports->{$em_report}->{to} = $em_to;
my $d = "emailreports";
undef($d) if(!grep {trim($_) eq $d} (@{$config{debug}}));
eval "use emailreports qw(emailreports_send)";
if($@) {
die "WARNING: unable to load module 'emailreports'. $@";
}
$em_when = "1hour" if $em_report eq "hourly";
$em_when = "1day" if $em_report eq "daily";
$em_when = "1week" if $em_report eq "weekly";
$em_when = "1month" if $em_report eq "monthly";
$em_when = "1year" if $em_report eq "yearly";
eval { emailreports::emailreports_send(\%config, $em_report, $em_when, $d); };
if($@) {
logger("emailreports::emailreports_send(): $@");
}
logger("Done.");
exit(0);
}
# save the path of the configuration file
if(open(OUT, "> " . $config{base_dir} . "/cgi/monitorix.conf.path")) {
print(OUT "$options{c}\n");
print(OUT "$options{s}\n");
close(OUT);
} else {
logger("WARNING: unable to create the file '$config{base_dir}/cgi/monitorix.conf.path'. $!");
}
if($config{os} eq "Linux" && !$options{u}) {
# make sure that 'ip_default_table' option has a consistent value
$config{ip_default_table} = "filter" if !$config{ip_default_table};
# check 'iptables' version to include the new wait lock option '--wait'
my $ipv = `iptables --version`;
chomp($ipv);
$ipv =~ s/^iptables v//;
$ipv = sprintf("%03s.%03s.%03s", split('\.', $ipv));
if($ipv gt "001.004.020") { # 1.4.20
$config{iptables_wait_lock} = " --wait ";
} else {
$config{iptables_wait_lock} = "";
}
}
# make sure that there aren't residual Monitorix iptables rules
flush_accounting_rules(\%config, $options{d}) unless $options{u};
logger("Initializing graphs.");
# check for inconsistencies between enabled graphs and defined graphs
foreach my $g (sort keys %{$config{graph_enable}}) {
if(lc($config{graph_enable}->{$g} || "") eq "y") {
if(!grep {trim($_) eq $g} (split(',', $config{graph_name}))) {
logger("WARNING: inconsitency between '<graph_enable>' and 'graph_name' options; '$g' doesn't exist.");
}
}
}
# initialize all enabled graphs
foreach (split(',', ($config{graph_name} || "") . ", traffacct")) {
my $g = trim($_);
my $e = "n";
if($g eq "traffacct") {
$e = lc($config{$g}->{enabled} || "");
} else {
$e = lc($config{graph_enable}->{$g} || "");
}
if($e eq "y") {
my $init = $g . "_init";
my $d = $g;
undef($d) if(!grep {trim($_) eq $d} (@{$config{debug}}));
if(defined($options{d}) && $options{d} eq "all") {
$d = $g;
}
eval "use $g qw(" . $init . " " . $g . "_update)";
if($@) {
logger("WARNING: unable to load module '$g'. $@");
next;
}
{
no strict "refs";
eval { &$init($g, \%config, $d); };
}
logger("WARNING: unexpected errors in function $init().") if($@);
}
}
if(!scalar($config{func_update})) {
logger("Nothing to do, exiting.");
exit(0);
}
logger("Generating the 'index.html' file.");
create_index();
# start the HTTP built-in (if enabled)
if(lc($config{httpd_builtin}->{enabled} || "") eq "y") {
if(!$options{u}) {
logger("Setting owner/group and permission bits for the imgs/ directory.") if defined($options{d});
my (undef, undef, $uid) = getpwnam($config{httpd_builtin}->{user});
my (undef, undef, $gid) = getgrnam($config{httpd_builtin}->{group});
chown($uid, $gid, $config{base_dir} . "/" . $config{imgs_dir});
chmod(0755, $config{base_dir} . "/" . $config{imgs_dir});
}
require HTTPServer;
httpd_setup(\%config, $options{u});
logger("Started HTTP built-in server (pid $config{httpd_pid}).") if (defined($config{httpd_pid}));
}
setpriority(0, 0, $config{priority} || 0);
logger("Ok, ready.");
# main loop
while(1) {
select undef, undef, undef, 1.0;
my ($sec, $min, $hour, $mday, $mon, undef, $wday) = localtime(time);
# call to all enabled graphs on every minute
if($sec == 0) {
my $lockfile_handler = lockfile_handler(\%config);
global_flock($lockfile_handler, LOCK_EX);
foreach my $f (@{$config{func_update}}) {
my $update = $f . "_update";
my $d = $f;
logger("Calling $update()") unless !$options{d};
undef($d) if(!grep {trim($_) eq $d} (@{$config{debug}}));
if(defined($options{d}) && $options{d} eq "all") {
$d = $f;
}
{
no strict "refs";
eval { &$update($f, \%config, $d); };
if($@) {
logger("$update(): $@");
}
}
}
global_flock($lockfile_handler, LOCK_UN);
# TRAFFACCT graph daily reports
if(lc($config{traffacct}->{enabled} || "") eq "y") {
my $d = "traffacct";
undef($d) if(!grep {trim($_) eq $d} (@{$config{debug}}));
# at 00:00h
if($min == 0 && $hour == 0) {
# collect traffic accounting every day
eval { traffacct::traffacct_getcounters(\%config, $d); };
if($@) {
logger("traffacct::traffacct_getcounters(): $@");
}
# send reports every first day of a month
if(lc($config{traffacct}->{reports}->{enabled} || "") eq "y") {
if($mday == 1) {
eval { traffacct::traffacct_sendreports(\%config, $d); };
if($@) {
logger("traffacct::traffacct_sendreports(): $@");
}
}
}
}
}
# Scheduled Email Reports
if(lc($config{emailreports}->{enabled} || "") eq "y") {
my $emailreports = $config{emailreports};
my $m = $emailreports->{minute} || 0;
my $h = $emailreports->{hour} || 0;
my $d = "emailreports";
undef($d) if(!grep {trim($_) eq $d} (@{$config{debug}}));
if($min == $m && $hour == $h) {
eval "use emailreports qw(emailreports_send)";
if($@) {
logger("WARNING: unable to load module 'emailreports'. $@");
next;
}
# daily
if(lc($emailreports->{daily}->{enabled} || "") eq "y") {
eval { emailreports::emailreports_send(\%config, "daily", "1day", $d); };
if($@) {
logger("emailreports::emailreports_send(): $@");
}
}
# weekly (send reports on every Monday)
if($wday == 1) {
if(lc($emailreports->{weekly}->{enabled} || "") eq "y") {
eval { emailreports::emailreports_send(\%config, "weekly", "1week", $d); };
if($@) {
logger("emailreports::emailreports_send(): $@");
}
}
}
# monthly (send reports every first day of each month)
if($mday == 1) {
if(lc($emailreports->{monthly}->{enabled} || "") eq "y") {
eval { emailreports::emailreports_send(\%config, "monthly", "1month", $d); };
if($@) {
logger("emailreports::emailreports_send(): $@");
}
}
}
# yearly (send reports every first day of each year)
if($mon == 0 && $mday == 1) {
if(lc($emailreports->{yearly}->{enabled} || "") eq "y") {
eval { emailreports::emailreports_send(\%config, "yearly", "1year", $d); };
if($@) {
logger("emailreports::emailreports_send(): $@");
}
}
}
}
}
# check if the HTTP built-in server is responsive
if(lc($config{httpd_builtin}->{enabled} || "") eq "y") {
if(lc($config{httpd_builtin}->{autocheck_responsiveness} || "") eq "y") {
use LWP::UserAgent;
my $pid = fork();
if(!$pid) {
my $host = $config{httpd_builtin}->{host} ? $config{httpd_builtin}->{host} : "localhost";
my $url = "http://" . $host . ":" . $config{httpd_builtin}->{port} . $config{base_url};
my $ua = LWP::UserAgent->new(timeout => 30);
my $response = $ua->request(HTTP::Request->new('GET', $url));
if(!$response->is_success) {
if($response->status_line ne "401 Access Denied") {
logger("WARNING: HTTP built-in server not responding at '$url'.");
exit(1);
}
}
exit(0);
}
waitpid($pid, 0);
# waitpid sets the child's status in $?
if($? != 0) {
# restart HTTP built-in server
if(defined($config{httpd_pid})) {
require HTTPServer;
kill(15, $config{httpd_pid});
kill(9, $config{httpd_pid});
httpd_setup(\%config, $options{u});
logger("Restarted HTTP built-in server (pid $config{httpd_pid}).") if defined($config{httpd_pid});
}
}
}
}
}
waitpid(-1, WNOHANG);
}