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thold_process.php
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thold_process.php
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<?php
/*
+-------------------------------------------------------------------------+
| Copyright (C) 2006-2017 The Cacti Group |
| |
| 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. |
+-------------------------------------------------------------------------+
| Cacti: The Complete RRDTool-based Graphing Solution |
+-------------------------------------------------------------------------+
| This code is designed, written, and maintained by the Cacti Group. See |
| about.php and/or the AUTHORS file for specific developer information. |
+-------------------------------------------------------------------------+
| http://www.cacti.net/ |
+-------------------------------------------------------------------------+
*/
/* tick use required as of PHP 4.3.0 to accomodate signal handling */
declare(ticks = 1);
/* sig_handler - provides a generic means to catch exceptions to the Cacti log.
@arg $signo - (int) the signal that was thrown by the interface.
@returns - null */
function sig_handler($signo) {
switch ($signo) {
case SIGTERM:
case SIGINT:
cacti_log('WARNING: Thold Sub Process terminated by user', FALSE, 'thold');
exit;
break;
default:
/* ignore all other signals */
}
}
/* do NOT run this script through a web browser */
if (!isset($_SERVER['argv'][0]) || isset($_SERVER['REQUEST_METHOD']) || isset($_SERVER['REMOTE_ADDR'])) {
die('<br><strong>This script is only meant to run at the command line.</strong>');
}
/* We are not talking to the browser */
$no_http_headers = TRUE;
chdir(dirname(__FILE__));
chdir('../../');
require_once('./include/global.php');
require_once($config['base_path'] . '/lib/rrd.php');
require($config['base_path'] . '/plugins/thold/includes/arrays.php');
require_once($config['base_path'] . '/plugins/thold/thold_functions.php');
require_once($config['library_path'] . '/snmp.php');
/* process calling arguments */
$parms = $_SERVER['argv'];
array_shift($parms);
/* install signal handlers for UNIX only */
if (function_exists('pcntl_signal')) {
pcntl_signal(SIGTERM, 'sig_handler');
pcntl_signal(SIGINT, 'sig_handler');
}
/* take time and log performance data */
list($micro,$seconds) = explode(' ', microtime());
$start = $seconds + $micro;
/* process calling arguments */
$parms = $_SERVER['argv'];
array_shift($parms);
$pid = false;
$debug = false;
if (sizeof($parms)) {
foreach($parms as $parameter) {
if (strpos($parameter, '=')) {
list($arg, $value) = explode('=', $parameter);
} else {
$arg = $parameter;
$value = '';
}
switch ($arg) {
case '-d':
case '--debug':
$debug = TRUE;
break;
case '-pid':
case '--pid':
@list($partA, $partB) = @explode('_', $value);
if(is_numeric($partA) && is_numeric($partB)) {
$pid = $value;
}else {
print 'ERROR: Invalid Process ID ' . $arg . "\n\n";
display_help();
exit;
}
break;
case '-v':
case '--version':
case '-V':
display_version();
exit;
case '--help':
case '-h':
case '-H':
display_help();
exit;
exit;
default:
print 'ERROR: Invalid Parameter ' . $parameter . "\n\n";
display_help();
}
}
}
if($pid === false) {
display_help();
}else {
db_execute_prepared("UPDATE plugin_thold_daemon_processes SET start = ? WHERE pid = ?", array(time(), $pid));
}
$sql_query = "SELECT tdd.id, tdd.rrd_reindexed, tdd.rrd_time_reindexed,
td.id AS thold_id, td.name AS thold_name, td.local_graph_id,
td.percent_ds, td.expression, td.data_type, td.cdef, td.local_data_id,
td.data_template_rrd_id, td.lastread,
UNIX_TIMESTAMP(td.lasttime) AS lasttime, td.oldvalue,
dtr.data_source_name as name, dtr.data_source_type_id,
dtd.rrd_step, dtr.rrd_maximum
FROM plugin_thold_daemon_data AS tdd
INNER JOIN thold_data AS td
ON td.id = tdd.id
LEFT JOIN data_template_rrd AS dtr
ON dtr.id = td.data_template_rrd_id
LEFT JOIN data_template_data AS dtd
ON dtd.local_data_id = td.local_data_id
WHERE tdd.pid = ?
AND dtr.data_source_name != ''";
$tholds = db_fetch_assoc_prepared($sql_query, array($pid), false);
if (sizeof($tholds)) {
$rrd_reindexed = array();
$rrd_time_reindexed = array();
foreach ($tholds as $thold_data) {
thold_debug("Checking Threshold Name: '" . $thold_data['thold_name'] . "', Graph: '" . $thold_data['local_graph_id'] . "'");
$item = array();
$rrd_reindexed[$thold_data['local_data_id']] = unserialize($thold_data['rrd_reindexed']);
$rrd_time_reindexed[$thold_data['local_data_id']] = $thold_data['rrd_time_reindexed'];
$currenttime = 0;
$currentval = thold_get_currentval($thold_data, $rrd_reindexed, $rrd_time_reindexed, $item, $currenttime);
switch ($thold_data['data_type']) {
case 0:
break;
case 1:
if ($thold_data['cdef'] != 0) {
$currentval = thold_build_cdef($thold_data['cdef'], $currentval, $thold_data['local_data_id'], $thold_data['data_template_rrd_id']);
}
break;
case 2:
if ($thold_data['percent_ds'] != '') {
$currentval = thold_calculate_percent($thold_data, $currentval, $rrd_reindexed);
}
break;
case 3:
if ($thold_data['expression'] != '') {
$currentval = thold_calculate_expression($thold_data, $currentval, $rrd_reindexed, $rrd_time_reindexed);
}
break;
}
if (is_numeric($currentval)) {
$currentval = round($currentval, 4);
}else{
$currentval = '';
}
db_execute_prepared("UPDATE thold_data SET tcheck = 1, lastread= ?, lasttime = ?, oldvalue = ? WHERE id = ?",
array($currentval, date('Y-m-d H:i:s', $currenttime), $item[$thold_data['name']], $thold_data['thold_id'])
);
}
/* check all thresholds */
$sql_query = "SELECT td.*
FROM plugin_thold_daemon_data AS tdd
INNER JOIN thold_data AS td
ON td.id = tdd.id
LEFT JOIN data_template_rrd AS dtr
ON dtr.id = td.data_template_rrd_id
WHERE tdd.pid = ?
AND td.thold_enabled='on'
AND td.tcheck=1";
$tholds = api_plugin_hook_function('thold_get_live_hosts', db_fetch_assoc_prepared($sql_query, array($pid)));
$total_tholds = sizeof($tholds);
foreach ($tholds as $thold) {
thold_check_threshold($thold);
}
db_execute_prepared("UPDATE thold_data SET thold_data.thold_daemon_pid = '', tcheck=0 WHERE thold_data.thold_daemon_pid = ?",
array($pid)
);
db_execute_prepared("DELETE FROM plugin_thold_daemon_data WHERE pid = ?", array($pid));
db_execute_prepared("UPDATE plugin_thold_daemon_processes SET end = ?, processed_items = ? WHERE pid = ?",
array(time(), $total_tholds, $pid)
);
}
function display_version() {
global $config;
if (!function_exists('plugin_thold_version')) {
include_once($config['base_path'] . '/plugins/thold/setup.php');
}
$info = plugin_thold_version();
echo "Threshold Processor, Version " . $info['version'] . ", " . COPYRIGHT_YEARS . "\n";
}
/* display_help - displays the usage of the function */
function display_help () {
display_version();
print "\nusage: thold_process.php --pid=N [--debug]\n\n";
print "The main Threshold processor for the Thold Plugin.\n";
}