665 lines
18 KiB
Perl
Executable File
665 lines
18 KiB
Perl
Executable File
#!/usr/bin/perl
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# Pandora FMS Agent Plugin for SunONE
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# (c) Artica Soluciones Tecnologicas <info@artica.es> 2011
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# v2, 1 Sep 2011
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# ------------------------------------------------------------------------
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use strict;
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use warnings;
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use IO::Socket::INET;
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# OS and OS version
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my $OS = $^O;
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# Load on Win32 only
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if ($OS eq "MSWin32"){
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# Check dependencies
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eval 'local $SIG{__DIE__}; use Win32::OLE("in");';
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if ($@) {
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print "Error loading Win32::Ole library. Cannot continue\n";
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exit;
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}
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use constant wbemFlagReturnImmediately => 0x10;
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use constant wbemFlagForwardOnly => 0x20;
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}
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my %plugin_setup; # This stores plugin parameters
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my $archivo_cfg = $ARGV[0];
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my $volume_items = 0;
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my $log_items = 0;
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my $webcheck_items = 0;
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my $process_items = 0;
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# FLUSH in each IO
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$| = 1;
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# ----------------------------------------------------------------------------
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# This cleans DOS-like line and cleans ^M character. VERY Important when you process .conf edited from DOS
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# ----------------------------------------------------------------------------
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sub parse_dosline ($){
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my $str = $_[0];
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$str =~ s/\r//g;
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return $str;
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}
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# ----------------------------------------------------------------------------
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# Strips blank likes
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# ----------------------------------------------------------------------------
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sub trim ($){
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my $string = shift;
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$string =~ s/^\s+//;
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$string =~ s/\s+$//;
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return $string;
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}
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# ----------------------------------------------------------------------------
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# clean_blank
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#
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# This function return a string without blankspaces, given a simple text string
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# ----------------------------------------------------------------------------
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sub clean_blank($){
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my $input = $_[0];
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$input =~ s/[\s\r\n]*//g;
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return $input;
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}
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# ----------------------------------------------------------------------------
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# print_module
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#
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# This function return a pandora FMS valid module fiven name, type, value, description
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# ----------------------------------------------------------------------------
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sub print_module ($$$$){
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my $MODULE_NAME = $_[0];
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my $MODULE_TYPE = $_[1];
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my $MODULE_VALUE = $_[2];
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my $MODULE_DESC = $_[3];
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# If not a string type, remove all blank spaces!
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if ($MODULE_TYPE !~ m/string/){
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$MODULE_VALUE = clean_blank($MODULE_VALUE);
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}
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print "<module>\n";
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print "<name>$MODULE_NAME</name>\n";
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print "<type>$MODULE_TYPE</type>\n";
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print "<data><![CDATA[$MODULE_VALUE]]></data>\n";
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print "<description><![CDATA[$MODULE_DESC]]></description>\n";
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print "</module>\n";
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}
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# ----------------------------------------------------------------------------
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# load_external_setup
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#
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# Load external file containing configuration
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# ----------------------------------------------------------------------------
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sub load_external_setup ($); # Declaration due a recursive call to itself on includes
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sub load_external_setup ($){
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my $archivo_cfg = $_[0];
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my $buffer_line;
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my @config_file;
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my $parametro = "";
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# Collect items from config file and put in an array
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if (! open (CFG, "< $archivo_cfg")) {
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print "[ERROR] Error opening configuration file $archivo_cfg: $!.\n";
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exit 1;
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}
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while (<CFG>){
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$buffer_line = parse_dosline ($_);
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# Parse configuration file, this is specially difficult because can contain SQL code, with many things
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if ($buffer_line !~ /^\#/){ # begins with anything except # (for commenting)
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if ($buffer_line =~ m/(.+)\s(.*)/){
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push @config_file, $buffer_line;
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}
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}
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}
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close (CFG);
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# Some plugin setup default options
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$plugin_setup{"logparser"}="/etc/pandora/plugins/grep_log";
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$plugin_setup{"timeout"} = 5;
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$plugin_setup{"apache_stats"} = "";
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foreach (@config_file){
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$parametro = $_;
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if ($parametro =~ m/^include\s(.*)/i) {
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load_external_setup ($1);
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}
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if ($parametro =~ m/^logparser\s(.*)/i) {
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$plugin_setup{"logparser"}=$1;
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}
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if ($parametro =~ m/^timeout\s(.*)/i) {
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$plugin_setup{"timeout"}=clean_blank($1);
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}
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# Log check
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if ($parametro =~ m/^log\s(.*)/i) {
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$plugin_setup{"log"}->[$log_items]=$1;
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$log_items++;
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}
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# Volume check
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if ($parametro =~ m/^volume\s(.*)/i) {
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$plugin_setup{"volume"}->[$volume_items]=$1;
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$volume_items++;
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}
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# Webcheck
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if ($parametro =~ m/^webcheck\s(.*)/i) {
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$plugin_setup{"webcheck"}->[$webcheck_items]=$1;
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$webcheck_items++;
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}
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# Processcheck
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if ($parametro =~ m/^process\s(.*)/i) {
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$plugin_setup{"process"}->[$process_items]=$1;
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$process_items++;
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}
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# Apachestats
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if ($parametro =~ m/^apache_stats\s(.*)/i) {
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$plugin_setup{"apache_stats"}=$1;
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}
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}
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}
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# ----------------------------------------------------------------------------
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# http_check
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#
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# This function recives something like 0.0.0.0:80 / 200 OK
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# to check a HTTP response, given Host:PORT, URL and Search string
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# Return 0 if not, and 1 if found
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# ----------------------------------------------------------------------------
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sub http_check ($$$$$){
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my $name = $_[0];
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my $host = $_[1];
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my $port = $_[2];
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my $query_string = $_[3];
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my $search_string = $_[4];
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my $tcp_send = "GET $query_string HTTP/1.0\n\n";
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my $temp; my $match = 0;
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my $sock = new IO::Socket::INET (
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PeerAddr => $host,
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PeerPort => $port,
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Proto => 'tcp',
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Timeout=> $plugin_setup{"timeout"},
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Blocking=>1 ); # Non block gives non-accurate results. We need to be SURE about this results :(
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if (!$sock){
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print_module("web_$name", "generic_proc", 0, "HTTP Check on $host for $query_string");
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return;
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}
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# Send data
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$sock->autoflush(1);
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$tcp_send =~ s/\^M/\r\n/g;
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# Replace Carriage return and line feed
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print $sock $tcp_send;
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my @buffer = <$sock>;
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# Search on buffer
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foreach (@buffer) {
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if ($_ =~ /$search_string/){
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$match = 1;
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last;
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}
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}
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$sock->close;
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print_module ("web_$name", "generic_proc", $match, "HTTP Check on $host for $query_string");
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return;
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}
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# ----------------------------------------------------------------------------
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# apache_stats
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#
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# This function uses mod_status from apache to get information
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# Given Instance, Host:PORT, URL (usually should be /server-status)
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# ----------------------------------------------------------------------------
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sub apache_stats ($$$$){
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my $name = $_[0];
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my $host = $_[1];
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my $port = $_[2];
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my $query_string = $_[3];
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if ($query_string eq ""){
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$query_string = "/";
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}
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my $tcp_send = "GET $query_string HTTP/1.0\n\n";
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my $temp; my $match = 0;
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# First at all, check response on apache (200 OK)
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http_check ("Apache_Status_$name", $host, $port, $query_string, "200 OK");
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my $sock = new IO::Socket::INET (
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PeerAddr => $host,
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PeerPort => $port,
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Proto => 'tcp',
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Timeout=> $plugin_setup{"timeout"},
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Blocking=>1 ); # Non block gives non-accurate results. We need to be SURE about this results :(
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if (!$sock){
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return;
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}
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# Send data
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$sock->autoflush(1);
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$tcp_send =~ s/\^M/\r\n/g;
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# Replace Carriage return and line feed
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print $sock $tcp_send;
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my @buffer = <$sock>;
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# Search on buffer
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foreach (@buffer) {
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if ($_ =~ /Restart Time: ([aA-zZ]+\,\s[0-9]{2}\-[aA-zZ]{3}\-[0-9]{4}\s[0-9]{2}\:[0-9]{2}\:[0-9]{2}\s[aA-zZ]+)/ ) {
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print_module ("apache_restart_time_$name", "generic_data_string", $1, "" );
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}
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if ($_ =~ /Server uptime: ([aA-zZ 0-9]+)/) {
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print_module ("apache_server_uptime_$name", "generic_data_string", $1, "" );
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}
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if ($_ =~ /Total accesses: ([0-9]+)/ ) {
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print_module ("apache_accesses_$name", "generic_data_inc", $1, "" );
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}
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if ($_ =~ /Total Traffic: ([0-9]+)/ ) {
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print_module ("apache_total_traffic_$name", "generic_data_inc", $1, "" );
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}
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if ($_ =~ /([0-9]+\.[0-9]+)\%\sCPU\sload/ ){
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print_module ("apache_CPU_Load_$name", "generic_data", $1, "" );
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}
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if ($_ =~ /CPU Usage\: u([\.0-9]*)/ ){
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print_module ("apache_CPU_User_Load_$name", "generic_data", $1, "" );
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}
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if ($_ =~ /CPU Usage\: u[\.0-9]* s([\.0-9]*)/ ){
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print_module ("apache_CPU_System_Load_$name", "generic_data", $1, "" );
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}
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if ($_ =~ /([\.0-9]+)\srequests\/sec/){
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print_module ("apache_Req/Sec_$name", "generic_data", $1, "" );
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}
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if ($_ =~ /([0-9]+)\sB\/second/) {
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print_module ("apache_B/Sec_$name", "generic_data_inc", $1, "" );
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}
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if ($_ =~ /([0-9]+)\skB\/request/) {
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print_module ("apache_KB/Request_$name", "generic_data_inc", $1, "" );
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}
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if ($_ =~ /([0-9]+)\srequests\scurrently/) {
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print_module ("apache_request_currently_$name", "generic_data", $1, "" );
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}
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if ($_ =~ /([0-9]+)\sidle\sworkers/) {
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print_module ("apache_idle_workers_$name", "generic_data", $1, "" );
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}
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}
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$sock->close;
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return;
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}
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# ----------------------------------------------------------------------------
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# alert_log
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#
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# Do a call to alertlog plugin and output the result
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# Receives logfile, and module name
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# ----------------------------------------------------------------------------
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sub alert_log($$$){
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my $alertlog = $_[0];
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my $module_name = $_[1];
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my $log_expression = $_[2];
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my $plugin_call = "";
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# Call to logparser
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if ($OS eq "MSWin32") {
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$plugin_call = $plugin_setup{"logparser"}. " $alertlog $module_name $log_expression";
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} else {
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$plugin_call = $plugin_setup{"logparser"}. " $alertlog $module_name $log_expression 2> /dev/null";
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}
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my $output = `$plugin_call`;
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if ($output ne ""){
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print $output;
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} else {
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print_module($module_name, "async_string", "", "Alertlog for $alertlog ($log_expression)");
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}
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}
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# ----------------------------------------------------------------------------
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# spare_system_disk_win
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#
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# This function return % free disk on Windows, using WMI call
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# ----------------------------------------------------------------------------
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sub spare_system_disk_win ($$){
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my $name = $_[0];
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my $volume = $_[1];
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my $computer = "localhost";
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my $objWMIService = Win32::OLE->GetObject("winmgmts:\\\\$computer\\root\\CIMV2") or return;
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my $colItems = $objWMIService->ExecQuery("SELECT * from CIM_LogicalDisk WHERE Name = '$volume'", "WQL", wbemFlagReturnImmediately | wbemFlagForwardOnly);
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foreach my $objItem (in $colItems) {
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my $data = ($objItem->{"FreeSpace"} / $objItem->{"Size"}) * 100;
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print_module("Volume_$volume" . "_" . "$name", "generic_data", "$data", "Free disk on $volume");
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return;
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}
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}
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# ----------------------------------------------------------------------------
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# spare_system_disk
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#
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# Check free space on volume
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# Receives volume name and instance
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# ----------------------------------------------------------------------------
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sub spare_system_disk ($$) {
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my $name = $_[0];
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my $vol = $_[1];
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if ($vol eq ""){
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return;
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}
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# This is a posix call, should be the same on all systems !
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my $output = `df -kP | grep "$vol\$" | awk '{ print \$5 }' | tr -d "%"`;
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my $disk_space = 100 - $output;
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print_module("Volume_$vol" . "_" . "$name", "generic_data", $disk_space, "% of volume free");
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}
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# ----------------------------------------------------------------------------
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# process_status_unix
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#
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# Generates a pandora module about the running status of a given process
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# ----------------------------------------------------------------------------
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sub process_status_unix ($$){
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my $proc = $_[0];
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my $proc_name = $_[1];
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if ($proc eq ""){
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return;
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}
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my $data = trim (`ps aux | grep "$proc" | grep -v grep | wc -l`);
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print_module("Process_$proc_name", "generic_proc", $data, "Status of process $proc");
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}
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# ----------------------------------------------------------------------------
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# process_status_win
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#
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# Generates a pandora module about the running status of a given process
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# ----------------------------------------------------------------------------
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sub process_status_win ($$){
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my $proc = $_[0];
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my $proc_name = $_[1];
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if ($proc eq ""){
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return;
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}
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my $computer = "localhost";
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my $objWMIService = Win32::OLE->GetObject("winmgmts:\\\\$computer\\root\\CIMV2") or return;
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my $colItems = $objWMIService->ExecQuery("SELECT * FROM Win32_Process WHERE Caption = '$proc'", "WQL", wbemFlagReturnImmediately | wbemFlagForwardOnly);
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foreach my $objItem (in $colItems) {
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if ($objItem->{"Caption"} eq $proc){
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print_module("Process_$proc_name", "generic_proc", 1, "Status of process $proc");
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return;
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} else {
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print_module("Process_$proc_name", "generic_proc", 0, "Status of process $proc");
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return;
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}
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}
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# no matches, process is not running
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print_module("Process_$proc_name", "generic_proc", 0, "Status of process $proc");
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}
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# ----------------------------------------------------------------------------
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# process_mem_win
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#
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# Generates a Pandora FMS about memory usage of a given process "pepito.exe"
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# only works with EXACT names.
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# ----------------------------------------------------------------------------
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sub process_mem_win ($$){
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my $proc = $_[0];
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my $proc_name = $_[1];
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if ($proc eq ""){
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return;
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}
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my $computer = "localhost";
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my $objWMIService = Win32::OLE->GetObject("winmgmts:\\\\$computer\\root\\CIMV2") or return;
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my $colItems = $objWMIService->ExecQuery("SELECT * FROM Win32_Process WHERE Caption = '$proc'", "WQL", wbemFlagReturnImmediately | wbemFlagForwardOnly);
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foreach my $objItem (in $colItems) {
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if ($objItem->{"Caption"} eq $proc){
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print_module("Process_MEM_$proc_name", "generic_data", $objItem->{"WorkingSetSize"}, "Memory in bytes of process $proc");
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} else {
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return;
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}
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}
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}
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# ----------------------------------------------------------------------------
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# process_mem_unix
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#
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# Generates a Pandora FMS about memory usage of a given process
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# ----------------------------------------------------------------------------
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sub process_mem_unix ($$){
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my $vol = $_[0];
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my $proc_name = $_[1];
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if ($vol eq ""){
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return;
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}
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my $data = `ps aux | grep "$vol" | grep -v grep | awk '{ print \$6 }'`;
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my @data2 = split ("\n", $data),
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my $tot = 0;
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foreach (@data2){
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$tot = $tot + $_;
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}
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print_module("Proc_MEM_$proc_name", "generic_data", $tot, "Memory used (in bytes) for process $vol");
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}
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# ----------------------------------------------------------------------------
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# process_cpu_unix
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#
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# Generates a Pandora FMS about memory usage of a given process
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# ----------------------------------------------------------------------------
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sub process_cpu_unix ($$) {
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my $vol = $_[0];
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my $proc_name = $_[1];
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if ($vol eq ""){
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return;
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}
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my $data = `ps aux | grep "$vol" | grep -v grep | awk '{ print \$3 }'`;
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my @data2 = split ("\n", $data),
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my $tot = 0;
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foreach (@data2){
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$tot = $tot + $_;
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}
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print_module("Proc_CPU_$proc_name", "generic_data", $tot, "CPU (%) used for process $vol");
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}
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#--------------------------------------------------------------------------------
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#--------------------------------------------------------------------------------
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# MAIN PROGRAM
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# -------------------------------------------------------------------------------
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#--------------------------------------------------------------------------------
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# Parse external configuration file
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# Load config file from command line
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if ($#ARGV == -1 ){
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print "I need at least one parameter: Complete path to external configuration file \n";
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exit;
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}
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# Check for file
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if ( ! -f $archivo_cfg ) {
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printf "\n [ERROR] Cannot open configuration file at $archivo_cfg. \n\n";
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exit 1;
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}
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load_external_setup ($archivo_cfg);
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# Check for logparser, if not ready, skip all log check
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if ( ! -f $plugin_setup{"logparser"} ) {
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# Create a dummy check module with and advise warning
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if ($log_items > 0) {
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print_module("Error: Log parser not found", "async_string", 0, "Log parser not found, please check your configuration file and set it");
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}
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$log_items =0;
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}
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# Webchecks
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if ($webcheck_items > 0){
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my $ax;
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for ($ax=0; $ax < $webcheck_items; $ax++){
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my ($name, $host, $port, $url, $string) = split (";",$plugin_setup{"webcheck"}[$ax]);
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http_check ($name, $host, $port, $url, $string);
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}
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}
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# Check individual defined volumes
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if ($volume_items > 0){
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my $ax;
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for ($ax=0; $ax < $volume_items; $ax++){
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my ($name, $volume) = split (";",$plugin_setup{"volume"}[$ax]);
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if ($OS eq "MSWin32"){
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spare_system_disk_win ($name, $volume);
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} else {
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spare_system_disk ($name, $volume);
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}
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}
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}
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# Check individual defined logs
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if ($log_items > 0){
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my $ax;
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for ($ax=0; $ax < $log_items; $ax++){
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my ($logfile, $name, $expression) = split (";",$plugin_setup{"log"}[$ax]);
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# Verify proper valid values here or skip
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if (!defined($logfile)){
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next;
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}
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if (!defined($name)){
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next;
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}
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if (!defined($expression)){
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next;
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}
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alert_log ($logfile, $name, $expression);
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}
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}
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# Check individual defined process
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if ($process_items > 0){
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my $ax;
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for ($ax=0; $ax < $process_items; $ax++){
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my ($name, $process) = split (";",$plugin_setup{"process"}[$ax]);
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if ($OS eq "MSWin32") {
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process_status_win ($process, $name);
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process_mem_win ($process, $name);
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} else {
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process_status_unix ($process, $name);
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process_mem_unix ($process, $name);
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process_cpu_unix ($process, $name);
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}
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}
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}
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# Apache stats
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if ($plugin_setup{"apache_stats"} ne "") {
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my ($name, $host, $port, $url) = split (";",$plugin_setup{"apache_stats"});
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apache_stats ($name, $host, $port, $url);
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}
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