388 lines
14 KiB
Perl
388 lines
14 KiB
Perl
package PandoraFMS::DataServer;
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##########################################################################
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# Pandora FMS Data Server.
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# Pandora FMS. the Flexible Monitoring System. http://www.pandorafms.org
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##########################################################################
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# Copyright (c) 2005-2009 Artica Soluciones Tecnologicas S.L
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public License
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# as published by the Free Software Foundation; version 2
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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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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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##########################################################################
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use strict;
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use warnings;
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use threads;
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use threads::shared;
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use Thread::Semaphore;
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use Time::Local;
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use XML::Simple;
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use POSIX qw(setsid strftime);
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use PandoraFMS::Tools;
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use PandoraFMS::DB;
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use PandoraFMS::Core;
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use PandoraFMS::ProducerConsumerServer;
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# Inherits from PandoraFMS::ProducerConsumerServer
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our @ISA = qw(PandoraFMS::ProducerConsumerServer);
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# Global variables
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my @TaskQueue :shared;
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my %PendingTasks :shared;
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my $Sem :shared = Thread::Semaphore->new;
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my $TaskSem :shared = Thread::Semaphore->new (0);
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my $AgentSem :shared = Thread::Semaphore->new (1);
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my $ModuleSem :shared = Thread::Semaphore->new (1);
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########################################################################################
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# Data Server class constructor.
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########################################################################################
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sub new ($$;$) {
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my ($class, $config, $dbh) = @_;
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return undef unless $config->{'dataserver'} == 1;
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# Call the constructor of the parent class
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my $self = $class->SUPER::new($config, 0, \&PandoraFMS::DataServer::data_producer, \&PandoraFMS::DataServer::data_consumer, $dbh);
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bless $self, $class;
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return $self;
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}
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###############################################################################
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# Run.
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###############################################################################
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sub run ($) {
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my $self = shift;
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my $pa_config = $self->getConfig ();
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print_message ($pa_config, " [*] Starting Pandora FMS Data Server.", 1);
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$self->setNumThreads ($pa_config->{'dataserver_threads'});
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$self->SUPER::run (\@TaskQueue, \%PendingTasks, $Sem, $TaskSem);
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}
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###############################################################################
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# Data producer.
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###############################################################################
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sub data_producer ($) {
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my $self = shift;
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my $pa_config = $self->getConfig ();
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my @tasks;
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# Read all files in the incoming directory
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opendir (DIR, $pa_config->{'incomingdir'})
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|| die "[FATAL] Cannot open Incoming data directory at " . $pa_config->{'incomingdir'} . ": $!";
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my $queue_count = 0;
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while (defined (my $file_name = readdir(DIR))) {
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if ($queue_count > $pa_config->{"max_queue_files"}) {
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last;
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}
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# For backward compatibility
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if ($file_name =~ /^.*\.checksum$/) {
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unlink("$pa_config->{'incomingdir'}/$file_name");
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next;
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}
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# Data files must have the extension .data
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next if ($file_name !~ /^.*\.data$/);
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$queue_count++;
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push (@tasks, $file_name);
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}
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closedir(DIR);
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return @tasks;
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}
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###############################################################################
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# Data consumer.
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###############################################################################
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sub data_consumer ($$) {
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my ($self, $task) = @_;
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my ($pa_config, $dbh) = ($self->getConfig (), $self->getDBH ());
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my $file_name = $pa_config->{'incomingdir'};
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# Fix path
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$file_name .= "/" unless (substr ($file_name, -1, 1) eq '/');
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$file_name .= $task;
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# Try to parse the XML 3 times
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my $xml_data;
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for (1..3) {
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eval {
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threads->yield;
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$xml_data = XMLin ($file_name, forcearray => 'module');
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};
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# Invalid XML
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if ($@) {
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sleep (10);
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next;
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}
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# Ignore the timestamp in the XML and use the file timestamp instead
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$xml_data->{'timestamp'} = strftime ("%Y-%m-%d %H:%M:%S", localtime((stat($file_name))[9])) if ($pa_config->{'use_xml_timestamp'} eq '1' || ! defined ($xml_data->{'timestamp'}));
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unlink ($file_name);
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process_xml_data ($self->getConfig (), $file_name, $xml_data, $self->getServerID (), $self->getDBH ());
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return;
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}
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rename($file_name, $file_name . '_BADXML');
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pandora_event ($pa_config, "Unable to process XML data file ($file_name)", 0, 0, 0, 0, 0, 'error', 0, $dbh);
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}
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###############################################################################
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# Process XML data coming from an agent.
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###############################################################################
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sub process_xml_data ($$$$$) {
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my ($pa_config, $file_name, $data, $server_id, $dbh) = @_;
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my ($agent_name, $agent_version, $timestamp, $interval, $os_version, $timezone_offset) =
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($data->{'agent_name'}, $data->{'version'}, $data->{'timestamp'},
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$data->{'interval'}, $data->{'os_version'}, $data->{'timezone_offset'});
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# Timezone offset must be an integer beween -12 and +12
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if (!defined($timezone_offset) || $timezone_offset !~ /[-+]?[0-9,11,12]/) {
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$timezone_offset = 0; # Default value
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}
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my $valid_position_data = 1;
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# Get GIS information
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my ($longitude, $latitude, $altitude) = (
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$data->{'longitude'}, $data->{'latitude'}, $data->{'altitude'});
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if ($pa_config->{'activate_gis'}) {
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# Validate the GIS informtation
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if (!defined($altitude) || $altitude !~ /[-+]?[0-9,11,12]/) {
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$altitude = 0; # Default value
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}
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# If position data (at least longitude and latitde) are not valid should be ignored
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if ($longitude !~ /[-+]?[0-9]*\.?[0-9]+/ || $latitude !~ /[-+]?[0-9]*\.?[0-9]+/ || !defined($longitude) || !defined($latitude)) {
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$valid_position_data = 0;
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$longitude = '';
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$latitude = '';
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$altitude='';
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}
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logger($pa_config, "Getting GIS Data=timezone_offset=$timezone_offset longitude=$longitude latitude=$latitude altitude=$altitude", 10);
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}
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# Unknown agent!
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if (! defined ($agent_name) || $agent_name eq '') {
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logger($pa_config, "$file_name has data from an unnamed agent", 3);
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return;
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}
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# Get current datetime from system if value AUTO is coming in the XML
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if ( $data->{'timestamp'} =~ /AUTO/ ){
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$timestamp = strftime ("%Y/%m/%d %H:%M:%S", localtime());
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}
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else {
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if ($timezone_offset != 0) {
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# Modify the timestamp with the timezone_offset
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logger($pa_config, "Unmodified timestamp = $timestamp", 5);
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$timestamp =~ /(\d+)[\/|\-](\d+)[\/|\-](\d+) +(\d+):(\d+):(\d+)/;
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logger($pa_config, "Unmodified timestamp = $1/$2/$3 $4:$5:$6", 5);
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my $utimestamp = timelocal($6, $5, $4, $3, $2 -1 , $1 - 1900) + ($timezone_offset * 3600);
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logger($pa_config, "Seconds timestamp = $timestamp modified timestamp in seconds $utimestamp with timezone_offset = $timezone_offset", 5);
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$timestamp = strftime ("%Y-%m-%d %H:%M:%S", localtime($utimestamp));
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}
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logger($pa_config, "Modified timestamp = $timestamp with timezone_offset = $timezone_offset", 5);
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}
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# Check some variables
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$interval = 300 if (! defined ($interval) || $interval eq '');
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$os_version = 'N/A' if (! defined ($os_version) || $os_version eq '');
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# Get agent id
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$AgentSem->down ();
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my $agent_id = get_agent_id ($dbh, $agent_name);
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if ($agent_id < 1) {
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if ($pa_config->{'autocreate'} == 0) {
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logger($pa_config, "ERROR: There is no agent defined with name $agent_name", 3);
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$AgentSem->up ();
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return;
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}
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# Get OS, group and description
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my $os = pandora_get_os ($data->{'os_name'});
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my $group_id = undef;
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$group_id = get_db_value ($dbh, 'SELECT id_grupo FROM tgrupo WHERE nombre = ?', $data->{'group'}) if (defined ($data->{'group'}));
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$group_id = $pa_config->{'autocreate_group'} unless defined ($group_id);
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my $description = '';
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$description = $data->{'description'} if (defined ($data->{'description'}));
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# Create the agent
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if ($valid_position_data == 1 && $pa_config->{'activate_gis'} != 0 ) {
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logger($pa_config, "Creating agent $agent_name at long: $longitude lat: $latitude alt: $altitude", 5);
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$agent_id = pandora_create_agent($pa_config, $pa_config->{'servername'}, $agent_name, '', 0, $group_id, 0, $os,
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$description, $interval, $dbh, $timezone_offset, $longitude, $latitude, $altitude);
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}
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else { # Ignore agent positional data
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logger($pa_config, "Creating agent $agent_name", 5);
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$agent_id = pandora_create_agent($pa_config, $pa_config->{'servername'}, $agent_name, '', 0, $group_id, 0, $os,
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$description, $interval, $dbh, $timezone_offset);
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}
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if (! defined ($agent_id)) {
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$AgentSem->up ();
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return;
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}
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}
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$AgentSem->up ();
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if ($valid_position_data == 1 && $pa_config->{'activate_gis'} != 0) {
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logger($pa_config, "Updating agent $agent_name at long: $longitude lat: $latitude alt: $altitude", 5);
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# Update agent information including position information
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pandora_update_agent($pa_config, $timestamp, $agent_id, $os_version, $agent_version, $interval, $dbh, $timezone_offset, $longitude, $latitude, $altitude);
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}
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else {
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logger($pa_config, "Updating agent $agent_name", 5);
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# Update agent information without position information
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pandora_update_agent($pa_config, $timestamp, $agent_id, $os_version, $agent_version, $interval, $dbh, $timezone_offset);
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}
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pandora_module_keep_alive ($pa_config, $agent_id, $agent_name, $server_id, $dbh);
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# Process modules
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foreach my $module_data (@{$data->{'module'}}) {
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my $module_name = get_tag_value ($module_data, 'name', '');
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# Unnamed module
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next if ($module_name eq '');
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my $module_type = get_tag_value ($module_data, 'type', 'generic_data');
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# Single data
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if (! defined ($module_data->{'datalist'})) {
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my $data_timestamp = get_tag_value ($module_data, 'timestamp', $timestamp);
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process_module_data ($pa_config, $module_data, $server_id, $agent_name, $module_name, $module_type, $interval, $data_timestamp, $dbh);
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next;
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}
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# Data list
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foreach my $list (@{$module_data->{'datalist'}}) {
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# Empty list
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next unless defined ($list->{'data'});
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foreach my $data (@{$list->{'data'}}) {
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# No value
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next unless defined ($data->{'value'});
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$module_data->{'data'} = $data->{'value'};
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my $data_timestamp = get_tag_value ($module_data, 'timestamp', $timestamp);
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process_module_data ($pa_config, $module_data, $server_id, $agent_name, $module_name,
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$module_type, $interval, $data_timestamp, $dbh);
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}
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}
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}
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# Process inventory modules
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enterprise_hook('process_inventory_data', [$pa_config, $data, $server_id, $agent_name,
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$interval, $timestamp, $dbh]);
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}
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##########################################################################
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# Process module data, creating module if necessary.
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##########################################################################
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sub process_module_data ($$$$$$$$$) {
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my ($pa_config, $data, $server_id, $agent_name,
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$module_name, $module_type, $interval, $timestamp,
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$dbh) = @_;
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# Get agent data
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my $agent = get_db_single_row ($dbh, 'SELECT * FROM tagente WHERE nombre = ?', $agent_name);
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if (! defined ($agent)) {
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logger($pa_config, "Invalid agent '$agent_name' for module '$module_name'.", 3);
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return;
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}
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# Get module data or create it if it does not exist
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$ModuleSem->down ();
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my $module = get_db_single_row ($dbh, 'SELECT * FROM tagente_modulo WHERE id_agente = ? AND nombre = ?', $agent->{'id_agente'}, $module_name);
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if (! defined ($module)) {
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# Do not auto create modules
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if ($pa_config->{'autocreate'} ne '1') {
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logger($pa_config, "Module '$module_name' not found for agent '$agent_name' and module auto-creation disabled.", 10);
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$ModuleSem->up ();
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return;
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}
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# Is the agent learning?
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if ($agent->{'modo'} ne '1') {
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logger($pa_config, "Learning mode disabled. Skipping module '$module_name' agent '$agent_name'.", 10);
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$ModuleSem->up ();
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return;
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}
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# Get the module type
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my $module_id = get_module_id ($dbh, $module_type);
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if ($module_id <= 0) {
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logger($pa_config, "Invalid module type '$module_type' for module '$module_name' agent '$agent_name'.", 3);
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$ModuleSem->up ();
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return;
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}
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# Get min/max/description/post process
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my $max = get_tag_value ($data, 'max', 0);
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my $min = get_tag_value ($data, 'min', 0);
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my $description = get_tag_value ($data, 'description', '');
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my $post_process = get_tag_value ($data, 'post_process', 0);
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# Allow , as a decimal separator
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$post_process =~ s/,/./;
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# Create the module
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pandora_create_module ($pa_config, $agent->{'id_agente'}, $module_id, $module_name,
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$max, $min, $post_process, $description, $interval, $dbh);
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$module = get_db_single_row ($dbh, 'SELECT * FROM tagente_modulo WHERE id_agente = ? AND nombre = ?', $agent->{'id_agente'}, $module_name);
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if (! defined ($module)) {
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logger($pa_config, "Could not create module '$module_name' for agent '$agent_name'.", 3);
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$ModuleSem->up ();
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return;
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}
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}
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$ModuleSem->up ();
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# Module disabled!
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if ($module->{'disabled'} eq '1') {
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logger($pa_config, "Skipping disabled module '$module_name' agent '$agent_name'.", 10);
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return;
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}
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# Parse the timestamp and process the module
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if ($timestamp !~ /(\d+)\/(\d+)\/(\d+) +(\d+):(\d+):(\d+)/ &&
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$timestamp !~ /(\d+)\-(\d+)\-(\d+) +(\d+):(\d+):(\d+)/) {
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logger($pa_config, "Invalid timestamp '$timestamp' from module '$module_name' agent '$agent_name'.", 3);
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return;
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}
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my $utimestamp = timelocal($6, $5, $4, $3, $2 - 1, $1 - 1900);
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my $value = get_tag_value ($data, 'data', '');
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pandora_process_module ($pa_config, $value, $agent, $module, $module_type, $timestamp, $utimestamp, $server_id, $dbh);
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}
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1;
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__END__
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